diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..6164ec30
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+* text=auto
+* eol=lf
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 00000000..7fdc741a
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,66 @@
+name: Deploy PPA
+
+on:
+  push:
+    branches: djgpp-ppa
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    outputs:
+      good: ${{ steps.docheck.outputs.good }}
+    steps:
+      - uses: actions/checkout@v3
+      - id: docheck
+        name: Check release state
+        run: |
+          echo "good=$([ -z "$(head -n 1 debian/changelog | grep 'UNRELEASED')" ] && echo 'true' || echo 'false')" >> "$GITHUB_OUTPUT"
+
+  build:
+    runs-on: ubuntu-latest
+    needs: check
+    if: needs.check.outputs.good == 'true'
+    strategy:
+      matrix:
+        ubuntu-version: [ bionic, focal, jammy, lunar, mantic, noble ]
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install curl git debhelper devscripts dput gpg
+
+      - name: Setup package files
+        env:
+          UBUNTU_VERSION: ${{ matrix.ubuntu-version }}
+        run: |
+          mv debian/pgp-secret.asc /tmp/
+          sed -i "s/) unstable/~$UBUNTU_VERSION) $UBUNTU_VERSION/g" debian/changelog
+
+      - name: Make source package
+        run: |
+          debuild -S --no-sign -d
+
+      - name: Import signing key
+        env:
+          DECRYPT_KEY: ${{ secrets.DECRYPT_KEY }}
+        run: |
+          gpg --batch -k > /dev/null
+          gpg --batch --quiet --passphrase "$DECRYPT_KEY" -d /tmp/pgp-secret.asc | gpg --batch --import
+          rm -f /tmp/pgp-secret.asc
+          gpg --batch --keyserver keyserver.ubuntu.com --recv-keys 197C3D6E652B6B1C2B7F9EDF84089D0351487AB8
+
+      - name: Sign package
+        run: |
+          debsign -k197C3D6E652B6B1C2B7F9EDF84089D0351487AB8 ../*.changes
+
+      - name: Delete key
+        if: always()
+        run: |
+          sudo shred -fu $(gpgconf --list-dirs | grep homedir | sed 's/homedir://')/priv*/*
+
+      - name: Upload package
+        run: |
+          dput ppa:jwt27/djgpp-toolchain ../*.changes
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 00000000..e55ce9f2
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,139 @@
+name: Test builds
+
+on:
+  push:
+    branches-ignore: djgpp-ppa
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest, macos-latest ]
+        build-type: [ clean ]
+        env:
+          -
+            TARGET: i386-pc-msdosdjgpp
+            PACKAGES: binutils gcc djgpp-2.05 watt32
+          -
+            TARGET: i386-pc-msdosdjgpp
+            PACKAGES: binutils gcc djgpp-cvs watt32
+          -
+            TARGET: i386-pc-msdosdjgpp
+            PACKAGES: gdb
+          -
+            TARGET: arm-eabi
+            PACKAGES: binutils gcc newlib
+          -
+            TARGET: arm-eabi
+            PACKAGES: gdb
+          -
+            TARGET: avr
+            PACKAGES: binutils gcc avr-libc
+          -
+            TARGET: avr
+            PACKAGES: gdb avarice simulavr avrdude
+          -
+            TARGET: ia16-elf
+            PACKAGES: binutils gcc newlib
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Clear brew package cache
+        if: contains(matrix.os, 'macos')
+        run: |
+          rm -rf $(brew --cache)
+
+      - name: Cache brew package cache
+        uses: jwt27/cache@dist
+        if: contains(matrix.os, 'macos')
+        with:
+          path: ~/Library/Caches/Homebrew
+          key: testbuild-brew-cache-${{ github.sha }}
+          restore-keys: |
+            testbuild-brew-cache-
+
+      - name: Install dependencies (ubuntu)
+        if: contains(matrix.os, 'ubuntu')
+        run: |
+          sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+          sudo apt-get update
+          sudo apt-get install bison flex curl make texinfo zlib1g-dev tar bzip2 gzip xz-utils unzip dos2unix libtool-bin gcc-11 g++-11 cmake help2man python2-dev nasm libslang2-dev ccache
+          echo "CC=gcc-12" >> $GITHUB_ENV
+          echo "CXX=g++-12" >> $GITHUB_ENV
+          mkdir -p ~/.ccache
+          echo "CCACHE_DIR=~/.ccache" >> $GITHUB_ENV
+          echo "/usr/lib/ccache" >> $GITHUB_PATH
+
+      - name: Install dependencies (macos)
+        if: contains(matrix.os, 'macos')
+        run: |
+          brew update
+          brew install bash bison flex curl make texinfo zlib bzip2 gzip xz unzip dos2unix libtool cmake help2man nasm s-lang ccache
+          mkdir -p ~/.ccache
+          echo "CCACHE_DIR=~/.ccache" >> $GITHUB_ENV
+          echo "$(brew --prefix)/opt/ccache/libexec" >> $GITHUB_PATH
+
+      - name: Cache sources
+        uses: actions/cache@v3
+        with:
+          path: download
+          key: testbuild-sources-${{ matrix.os }}-${{ matrix.env.TARGET }}-${{ matrix.env.PACKAGES }}-${{ github.sha }}
+          restore-keys: |
+            testbuild-sources-${{ matrix.os }}-${{ matrix.env.TARGET }}-${{ matrix.env.PACKAGES }}-
+
+      - name: Cache ccache
+        uses: actions/cache@v3
+        with:
+          path: ~/.ccache
+          key: testbuild-ccache-${{ matrix.os }}-${{ matrix.env.TARGET }}-${{ matrix.env.PACKAGES }}-${{ github.sha }}
+          restore-keys: |
+            testbuild-ccache-${{ matrix.os }}-${{ matrix.env.TARGET }}-${{ matrix.env.PACKAGES }}-
+
+      - name: Download sources
+        env:
+          TARGET: ${{ matrix.env.TARGET }}
+          PACKAGES: ${{ matrix.env.PACKAGES }}
+        run: ./script/select-script.sh --only-download
+
+      - name: Cache build output
+        uses: actions/cache@v3
+        if: matrix.build-type == 'rebuild'
+        id: cache-build
+        with:
+          path: build
+          key: testbuild-build-${{ matrix.os }}-${{ matrix.env.TARGET }}-${{ matrix.env.PACKAGES }}-${{ github.sha }}
+          restore-keys: |
+            testbuild-build-${{ matrix.os }}-${{ matrix.env.TARGET }}-${{ matrix.env.PACKAGES }}-
+
+      - name: Clean build
+        if: matrix.build-type == 'clean'
+        env:
+          TARGET: ${{ matrix.env.TARGET }}
+        run: ./script/select-script.sh --no-download --prefix=${{ github.workspace }}-${{ github.sha }} ${{ matrix.env.PACKAGES }}
+
+      - name: Rebuild
+        if: matrix.build-type == 'rebuild'
+        env:
+          TARGET: ${{ matrix.env.TARGET }}
+        run: ./script/select-script.sh --no-download --prefix=${{ github.workspace }} ${{ matrix.env.PACKAGES }}
+
+      - name: Rebuild if uncached
+        if: matrix.build-type == 'rebuild' && steps.cache-build.outputs.cache-hit != 'true'
+        env:
+          TARGET: ${{ matrix.env.TARGET }}
+        run: ./script/select-script.sh --no-download --prefix=${{ github.workspace }} ${{ matrix.env.PACKAGES }}
+
+      - name: Clear and pack git sources before caching
+        if: matrix.build-type == 'clean'
+        run: |
+          find download/*/* ! -wholename '*/.git/*' -delete || true
+          cd download
+          for DIR in */; do
+            DIR=${DIR%/}
+            tar -c -f $DIR-git.tar $DIR
+          done
+          rm -rf */
diff --git a/.gitignore b/.gitignore
index c5e82040..b55146bc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,13 @@
 build/
 download/
+install/
+/Makefile
+debian/*/*
+debian/*.log
+debian/*.substvars
+debian/files
+debian/debhelper-build-stamp
+debian/*copyright
+!debian/source/
+!debian/djgpp-dev.copyright
+!debian/gcc-djgpp.copyright
diff --git a/README.md b/README.md
index f9983fb8..fbc3a4ad 100644
--- a/README.md
+++ b/README.md
@@ -1,155 +1,207 @@
-## Building DJGPP cross compiler on Windows, Mac OSX, Linux and FreeBSD.
+## Build gcc cross compiler on Windows, Mac OSX, Linux and FreeBSD.
 
-build-djgpp : Build DJGPP cross compiler and binutils on Windows (MinGW/Cygwin), Mac OSX, Linux and FreeBSD.
+### Upgrade notes:
 
-### Prebuilt binary files
+* 2020-02-13: default target for djgpp has changed to `i386-pc-msdosdjgpp`.  
+If you require compatibility with distributions that use `i586`, you can either:
+    - run `sudo i386-pc-msdosdjgpp-link-i586` after installing, or
+    - build with `./build-djgpp.sh --target=i586-pc-msdosdjgpp`.
+* 2020-02-07: setenv script is now installed to `$PREFIX/bin/$TARGET-setenv`.
+* 2019-06-06: `master` is now the default branch again.
 
-If you don't want build DJGPP by yourself, you can download prebuilt DJGPP binary files for MinGW, OSX and Linux from GitHub Release page.
+### Current package versions, as of 2024-05-30:
 
-### Requirement
+* gcc 12.2.0
+* binutils 2.42
+* gdb 14.2
+* djgpp 2.05 / cvs
+* watt-32 git
+* newlib 4.3.0.20230120
+* avr-libc 2.1.0
+* avrdude 7.0
+* avarice 2.14
+* simulavr git
 
-Before running this script, you need to install these programs first :
+### Tested targets:
+
+* i386-pc-msdosdjgpp
+* ia16
+* arm-eabi
+* avr
+
+See the [Actions tab](https://github.com/jwt27/build-gcc/actions?query=workflow%3A"Test+builds"+branch%3Amaster) on Github for a detailed status of individual targets.
+
+### Requirements
+
+Before running this script, you need to install these programs first:
 
 * g++
 * gcc
 * unzip
+* tar
+* bzip2
+* gzip
+* xz
 * bison
 * flex
 * make (or gmake for FreeBSD)
 * makeinfo
 * patch
 * zlib header/library
-* curl (for Cygwin/OSX/Linux/FreeBSD)
-* wget (for MinGW)
+* curl or wget
 * bash (for FreeBSD)
+* python2 headers (for gdb)
+* python3 headers (for gdb >= 9.0)
+* m4
+* dos2unix
+* nasm
 
 Depending on your system, installation procedure maybe different.
 
 On Debian/Ubuntu, you can install these programs by :
 
-```
-sudo apt-get update
-sudo apt-get install bison flex curl gcc g++ make texinfo zlib1g-dev g++ unzip
+```console
+$ sudo apt-get update
+$ sudo apt-get install bison flex curl gcc g++ make texinfo zlib1g-dev tar bzip2 gzip xz-utils unzip python{2,3}-dev m4 dos2unix nasm
 ```
 
 Fedora :
 
-```
-sudo yum install gcc-c++ bison flex texinfo patch zlib-devel
+```console
+$ sudo yum install gcc-c++ which bison flex texinfo patch zlib-devel tar bzip2 gzip xz unzip python-devel m4 dos2unix nasm
 ```
 
-MinGW :
+mingw-w64 (msys2) :
 
-```
-mingw-get update
-mingw-get install msys-unzip libz-dev msys-wget msys-bison msys-flex msys-patch
+```console
+$ pacman -Syuu base-devel mingw-w64-x86_64-{toolchain,curl,zlib,python{2,3}} compression m4 dos2unix nasm
 ```
 
 ### Configuration
 
-Default install location is /usr/local/djgpp. You can change install location by setting environment variable *DJGPP_PREFIX* :
-
-```
-DJGPP_PREFIX=/usr/local/my-djgpp
+The following command line options are recognized:
+```sh
+  --prefix=...              # Install location (default: /usr/local/cross)
+  --target=...              # Target name
+  --enable-languages=...    # Comma-separated list of languages to build compilers for (default: c,c++)
+  --no-download             # Do not download any files
+  --only-download           # Download source files, then exit
+  --ignore-dependencies     # Do not check package dependencies
+  --batch                   # Run in batch mode (will not prompt or delay to confirm settings)
 ```
 
-Default support language is C and C++. You can change supported languages by setting environment variable *ENABLE_LANGUAGES* :
-
+Several environment variables also control the build process:
+```sh
+GCC_CONFIGURE_OPTIONS=      # Extra options to pass to gcc's ./configure
+BINUTILS_CONFIGURE_OPTIONS= # Same, for binutils
+GDB_CONFIGURE_OPTIONS=      # Same, for gdb
+NEWLIB_CONFIGURE_OPTIONS=   # Same, for newlib
+AVRLIBC_CONFIGURE_OPTIONS=  # Same, for avr-libc
+GLOBAL_CONFIGURE_OPTIONS=   # Extra options added to all variables listed above
+MAKE_JOBS=                  # Number of parallel build threads (auto-detected)
+CFLAGS_FOR_TARGET=          # CFLAGS used to build target libraries
+HOST=                       # The platform you are building for, when building a cross-cross compiler
+BUILD=                      # The platform you are building on (auto-detected)
+MAKE_CHECK=                 # Run test suites on built programs.
+MAKE_CHECK_GCC=             # Run gcc test suites.
 ```
-ENABLE_LANGUAGES=c,c++,f95,objc,obj-c++
-```
-
-### Building DJGPP compiler
-
-To build DJGPP, just run :
 
-./build-djgpp.sh *djgpp-version*
+### Building
 
-Currently supported djgpp-version :
-
-* 4.7.3
-* 4.8.4
-* 4.8.5
-* 4.9.2
-* 4.9.3
-* 4.9.4
-* 5.1.0
-* 5.2.0
-* 5.3.0
-* 5.4.0
-* 5.5.0
-* 6.1.0
-* 6.2.0
-* 6.3.0
-* 6.4.0
-* 7.1.0
-* 7.2.0
+Pick the script you want to use:
+```sh
+build-djgpp.sh      # builds a toolchain targeting djgpp (default TARGET: i386-pc-msdosdjgpp)
+build-newlib.sh     # builds a toolchain with the newlib C library
+build-ia16.sh       # builds a toolchain targeting 8086 processors, with the newlib C library (fixed TARGET: ia16-elf)
+build-avr.sh        # builds a toolchain targeting AVR microcontrollers (fixed TARGET: avr)
+```
 
-For example, to build DJGPP for gcc 7.2.0 :
+To build DJGPP, just run:
+```console
+$ ./build-djgpp.sh [options...] [packages...]
+```
+Run with no arguments to see a list of supported packages and versions.
 
+For example, to build gcc 9.2.0 with the latest djgpp C library from CVS and latest binutils:
+```console
+$ ./build-djgpp.sh --prefix=/usr/local djgpp-cvs binutils gcc-9.2.0
 ```
-./build-djgpp.sh 7.2.0
+
+To install or upgrade all packages:
+```console
+$ ./build-djgpp.sh --prefix=/usr/local all
 ```
 
-It will download all necessary files, build DJGPP compiler and binutils, and install it.
+It will download all necessary files, build DJGPP compiler, binutils, and gdb, and install it.
 
-### Using DJGPP compiler
+### Using
 
-There are 2 methods to run the compiler (*BASE_DIR* is your DJGPP install location).
+(In the following examples, it is assumed that you built the toolchain with
+options `--prefix=/home/me/.local` and `--target=i386-pc-msdosdjgpp`.
+Substitute as necessary for your configuration.)
 
-* Use compiler full name :
+To use your new compiler, you must add its `bin` directory to your `PATH`.
+You can then access the toolchain through its target-prefixed name:
 
-```
-BASE_DIR/bin/i586-pc-msdosdjgpp-g++ hello.cpp
+```console
+$ PATH="/home/me/.local/bin:$PATH"
+$ i386-pc-msdosdjgpp-g++ hello.cpp
 ```
 
-* Or, use compiler short name, you have to change environment variables.
+A `setenv` script will also be installed.  This sets up environment variables
+so that you can use the toolchain as if you were working on the target machine.
+The toolchain utilities are then accessible through their short names (`gcc`,
+`ld`, etc), and you can access target-specific documentation and locate target
+libraries (via `man`/`info` and `pkg-config`, respectively).
 
-If you are using Linux :
-```
-export PATH=BASE_DIR/i586-pc-msdosdjgpp/bin/:$PATH
-export GCC_EXEC_PREFIX=BASE_DIR/lib/gcc/
-g++ hello.cpp
-```
-Or, run :
+This script can be used either with no arguments, to start a new shell:
 
-```
-source BASE_DIR/setenv
+```console
+$ i386-pc-msdosdjgpp-setenv
+Entering new shell for target environment: i386-pc-msdosdjgpp
+$ which gcc
+/home/me/.local/i386-pc-msdosdjgpp/bin//gcc
+$ gcc -v 2>&1 | grep 'Target'
+Target: i386-pc-msdosdjgpp
 ```
 
-If you are using Windows command prompt :
+With a single command:
 
-```
-PATH=BASE_DIR/i586-pc-msdosdjgpp/bin;%PATH%
-set GCC_EXEC_PREFIX=BASE_DIR/lib/gcc/
-g++ hello.cpp
+```console
+$ i386-pc-msdosdjgpp-setenv info libc
+  # (shows documentation for djgpp's C library)
 ```
 
-Or, run :
+Or `source`d into the current shell: (Bash only)
 
+```console
+$ which gcc
+/usr/bin/gcc
+$ source i386-pc-msdosdjgpp-setenv
+Environment variables set up for target: i386-pc-msdosdjgpp
+$ which gcc
+/home/me/.local/i386-pc-msdosdjgpp/bin/gcc
 ```
-BASE_DIR/setenv.bat
-```
 
-### Supported DJGPP Utilities
+### Supported DJGPP utilities
+
 * dxe3gen
 * dxe3res
 * dxegen
 * exe2coff
 * stubedit
 * stubify
+* djasm
 
-### Successful build
+### Supported AVR utilities
 
-* OSX 10.12.5
-* Debian 7 (32bit)
-* Ubuntu 12 (64bit)
-* FreeBSD-10.2 (64bit)
-* Cygwin (32bit Windows XP)
-* MinGW (32bit Windows XP)
+* avrdude
+* avarice
+* simulavr
 
 ### Thanks
 
-This script is based on spec file from DJGPP source rpm files by Andris Pavenis :
-
+These scripts are based on Andrew Wu's build-djgpp script:  
+<https://github.com/andrewwutw/build-djgpp>  
+Which in turn is based on spec file from DJGPP source rpm files by Andris Pavenis:  
 <http://ap1.pp.fi/djgpp/index.html>
diff --git a/avr/all b/avr/all
new file mode 100644
index 00000000..062a5da5
--- /dev/null
+++ b/avr/all
@@ -0,0 +1,5 @@
+source avr/minimal
+source common/gdb
+source avr/avrdude
+source avr/avarice
+source avr/simulavr
diff --git a/avr/avarice b/avr/avarice
new file mode 100644
index 00000000..5dc3becc
--- /dev/null
+++ b/avr/avarice
@@ -0,0 +1 @@
+source avr/avarice-2.14
diff --git a/avr/avarice-2.13 b/avr/avarice-2.13
new file mode 100644
index 00000000..a16ab178
--- /dev/null
+++ b/avr/avarice-2.13
@@ -0,0 +1,2 @@
+AVARICE_VERSION=2.13
+AVARICE_ARCHIVE=https://downloads.sourceforge.net/project/avarice/avarice/avarice-$AVARICE_VERSION/avarice-$AVARICE_VERSION.tar.bz2
diff --git a/avr/avarice-2.14 b/avr/avarice-2.14
new file mode 100644
index 00000000..9acd7412
--- /dev/null
+++ b/avr/avarice-2.14
@@ -0,0 +1,2 @@
+AVARICE_VERSION=2.14
+AVARICE_ARCHIVE=https://downloads.sourceforge.net/project/avarice/avarice/avarice-$AVARICE_VERSION/avarice-$AVARICE_VERSION.tar.bz2
diff --git a/avr/avr-libc b/avr/avr-libc
new file mode 100644
index 00000000..2f2dffe0
--- /dev/null
+++ b/avr/avr-libc
@@ -0,0 +1 @@
+source avr/avr-libc-2.1.0
diff --git a/avr/avr-libc-2.0.0 b/avr/avr-libc-2.0.0
new file mode 100644
index 00000000..fca0762e
--- /dev/null
+++ b/avr/avr-libc-2.0.0
@@ -0,0 +1,3 @@
+AVRLIBC_VERSION=2.0.0
+AVRLIBC_ARCHIVE=http://download.savannah.gnu.org/releases/avr-libc/avr-libc-$AVRLIBC_VERSION.tar.bz2
+AVRLIBC_DOC_ARCHIVE=http://download.savannah.gnu.org/releases/avr-libc/avr-libc-manpages-$AVRLIBC_VERSION.tar.bz2
diff --git a/avr/avr-libc-2.1.0 b/avr/avr-libc-2.1.0
new file mode 100644
index 00000000..c0ff9e47
--- /dev/null
+++ b/avr/avr-libc-2.1.0
@@ -0,0 +1,3 @@
+AVRLIBC_VERSION=2.1.0
+AVRLIBC_ARCHIVE=http://download.savannah.gnu.org/releases/avr-libc/avr-libc-$AVRLIBC_VERSION.tar.bz2
+AVRLIBC_DOC_ARCHIVE=http://download.savannah.gnu.org/releases/avr-libc/avr-libc-manpages-$AVRLIBC_VERSION.tar.bz2
\ No newline at end of file
diff --git a/avr/avrdude b/avr/avrdude
new file mode 100644
index 00000000..d7ffd947
--- /dev/null
+++ b/avr/avrdude
@@ -0,0 +1 @@
+source avr/avrdude-7.0
diff --git a/avr/avrdude-6.3 b/avr/avrdude-6.3
new file mode 100644
index 00000000..a32245a3
--- /dev/null
+++ b/avr/avrdude-6.3
@@ -0,0 +1,2 @@
+AVRDUDE_VERSION=6.3
+AVRDUDE_ARCHIVE=http://download.savannah.gnu.org/releases/avrdude/avrdude-$AVRDUDE_VERSION.tar.gz
diff --git a/avr/avrdude-6.4 b/avr/avrdude-6.4
new file mode 100644
index 00000000..4772cd86
--- /dev/null
+++ b/avr/avrdude-6.4
@@ -0,0 +1,2 @@
+AVRDUDE_VERSION=6.4
+AVRDUDE_ARCHIVE=http://download.savannah.gnu.org/releases/avrdude/avrdude-$AVRDUDE_VERSION.tar.gz
diff --git a/avr/avrdude-7.0 b/avr/avrdude-7.0
new file mode 100644
index 00000000..cc0e8521
--- /dev/null
+++ b/avr/avrdude-7.0
@@ -0,0 +1,2 @@
+AVRDUDE_VERSION=7.0
+AVRDUDE_ARCHIVE=http://download.savannah.gnu.org/releases/avrdude/avrdude-$AVRDUDE_VERSION.tar.gz
diff --git a/avr/minimal b/avr/minimal
new file mode 100644
index 00000000..99ce0bcd
--- /dev/null
+++ b/avr/minimal
@@ -0,0 +1,3 @@
+source avr/avr-libc
+source binutils/binutils
+source common/gcc
diff --git a/avr/simulavr b/avr/simulavr
new file mode 100644
index 00000000..7ee9b9ff
--- /dev/null
+++ b/avr/simulavr
@@ -0,0 +1 @@
+source avr/simulavr-git
diff --git a/avr/simulavr-git b/avr/simulavr-git
new file mode 100644
index 00000000..d665ec39
--- /dev/null
+++ b/avr/simulavr-git
@@ -0,0 +1,2 @@
+SIMULAVR_VERSION=git
+SIMULAVR_GIT="https://git.savannah.nongnu.org/git/simulavr.git::master"
diff --git a/binutils/binutils b/binutils/binutils
new file mode 100644
index 00000000..b2012abb
--- /dev/null
+++ b/binutils/binutils
@@ -0,0 +1 @@
+source binutils/binutils-2.42
diff --git a/binutils/binutils-2.29.1 b/binutils/binutils-2.29.1
new file mode 100644
index 00000000..2b369816
--- /dev/null
+++ b/binutils/binutils-2.29.1
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.29.1
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.30 b/binutils/binutils-2.30
new file mode 100644
index 00000000..4e2678c0
--- /dev/null
+++ b/binutils/binutils-2.30
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.30
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.31 b/binutils/binutils-2.31
new file mode 100644
index 00000000..cd4a4b2d
--- /dev/null
+++ b/binutils/binutils-2.31
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.31
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.31.1 b/binutils/binutils-2.31.1
new file mode 100644
index 00000000..ec5fb7c6
--- /dev/null
+++ b/binutils/binutils-2.31.1
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.31.1
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.32 b/binutils/binutils-2.32
new file mode 100644
index 00000000..cf49825f
--- /dev/null
+++ b/binutils/binutils-2.32
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.32
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.33.1 b/binutils/binutils-2.33.1
new file mode 100644
index 00000000..a054e549
--- /dev/null
+++ b/binutils/binutils-2.33.1
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.33.1
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.34 b/binutils/binutils-2.34
new file mode 100644
index 00000000..52172cf0
--- /dev/null
+++ b/binutils/binutils-2.34
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.34
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.35 b/binutils/binutils-2.35
new file mode 100644
index 00000000..02b20b46
--- /dev/null
+++ b/binutils/binutils-2.35
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.35
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.35.1 b/binutils/binutils-2.35.1
new file mode 100644
index 00000000..f685d213
--- /dev/null
+++ b/binutils/binutils-2.35.1
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.35.1
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.35.2 b/binutils/binutils-2.35.2
new file mode 100644
index 00000000..e850354f
--- /dev/null
+++ b/binutils/binutils-2.35.2
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.35.2
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.36 b/binutils/binutils-2.36
new file mode 100644
index 00000000..237f7291
--- /dev/null
+++ b/binutils/binutils-2.36
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.36
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.36.1 b/binutils/binutils-2.36.1
new file mode 100644
index 00000000..fc93d879
--- /dev/null
+++ b/binutils/binutils-2.36.1
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.36.1
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.37 b/binutils/binutils-2.37
new file mode 100644
index 00000000..6d30a327
--- /dev/null
+++ b/binutils/binutils-2.37
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.37
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.38 b/binutils/binutils-2.38
new file mode 100644
index 00000000..0ff41126
--- /dev/null
+++ b/binutils/binutils-2.38
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.38
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.39 b/binutils/binutils-2.39
new file mode 100644
index 00000000..412728e9
--- /dev/null
+++ b/binutils/binutils-2.39
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.39
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.40 b/binutils/binutils-2.40
new file mode 100644
index 00000000..c74dc478
--- /dev/null
+++ b/binutils/binutils-2.40
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.40
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.41 b/binutils/binutils-2.41
new file mode 100644
index 00000000..a17e3ee4
--- /dev/null
+++ b/binutils/binutils-2.41
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.41
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/binutils/binutils-2.42 b/binutils/binutils-2.42
new file mode 100644
index 00000000..65b0a311
--- /dev/null
+++ b/binutils/binutils-2.42
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2.42
+BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.xz"
diff --git a/build-avr.sh b/build-avr.sh
new file mode 100755
index 00000000..ef86c5a2
--- /dev/null
+++ b/build-avr.sh
@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+
+PACKAGE_SOURCES="avr binutils common"
+source script/init.sh
+
+TARGET="avr"
+
+prepend BINUTILS_CONFIGURE_OPTIONS "--disable-werror
+                                    --disable-nls"
+
+prepend GCC_CONFIGURE_OPTIONS "--disable-nls
+                               --enable-version-specific-runtime-libs
+                               --enable-fat"
+
+prepend GDB_CONFIGURE_OPTIONS "--disable-werror
+                               --disable-nls"
+
+prepend AVRLIBC_CONFIGURE_OPTIONS "--enable-device-lib"
+
+DEPS=""
+[ ! -z ${GCC_VERSION} ] && DEPS+=" avr-libc binutils"
+[ ! -z ${AVRLIBC_VERSION} ] && DEPS+=" gcc binutils"
+
+source ${BASE}/script/check-deps-and-confirm.sh
+source ${BASE}/script/download.sh
+source ${BASE}/script/build-tools.sh
+source ${BASE}/script/unpack-build-binutils.sh
+source ${BASE}/script/build-avr-gcc.sh
+
+cd ${BASE}/build/
+
+if [ ! -z ${SIMULAVR_VERSION} ]; then
+  echo "Building simulavr"
+  cd simulavr/ || exit 1
+  [ -e .git/shallow ] && git fetch --prune --unshallow
+  git fetch --tags
+  case `uname` in
+  MINGW*) sed -i 's/CMAKE_CONFIG_OPTS=/CMAKE_CONFIG_OPTS=-G "MSYS Makefiles" /' Makefile ;;
+  esac
+  sed -i "s@-DCMAKE_INSTALL_PREFIX=@-DCMAKE_INSTALL_PREFIX=${DST} #@" Makefile
+  sed -i 's/@make/$(MAKE)/g' Makefile
+  sed -i 's@/bin/@@' cmake/GetGitInfo.cmake
+  ${MAKE_J} build || exit 1
+  ${MAKE_J} doc || exit 1
+  [ ! -z $MAKE_CHECK ] && ${MAKE_J} -s check | tee ${BASE}/tests/simulavr.log
+  echo "Installing simulavr"
+  ${SUDO} ${MAKE} -C build install || exit 1
+  cd ${BASE}/build/ || exit 1
+fi
+
+if [ ! -z ${AVARICE_VERSION} ]; then
+  echo "Building AVaRICE"
+  untar ${AVARICE_ARCHIVE}
+  cd avarice-${AVARICE_VERSION}
+  [ -e ${BASE}/patch/patch-avarice-${AVARICE_VERSION}.txt ] && ( patch -p1 -u < ${BASE}/patch/patch-avarice-${AVARICE_VERSION}.txt || exit 1 )
+  mkdir -p build-avr/
+  cd build-avr/ || exit 1
+  rm -rf *
+  ../configure --prefix=${PREFIX} || exit 1
+  ${MAKE_J} || exit 1
+  [ ! -z $MAKE_CHECK ] && ${MAKE_J} -s check | tee ${BASE}/tests/avarice.log
+  echo "Installing AVaRICE"
+  ${SUDO} ${MAKE_J} install || exit 1
+  cd ${BASE}/build/ || exit 1
+fi
+
+if [ ! -z ${AVRDUDE_VERSION} ]; then
+  echo "Building AVRDUDE"
+  untar ${AVRDUDE_ARCHIVE}
+  cd avrdude-${AVRDUDE_VERSION}
+  mkdir -p build-avr/
+  cd build-avr/ || exit 1
+  rm -rf *
+  ../configure --prefix=${PREFIX} || exit 1
+  ${MAKE_J} || exit 1
+  [ ! -z $MAKE_CHECK ] && ${MAKE_J} -s check | tee ${BASE}/tests/avrdude.log
+  echo "Installing AVRDUDE"
+  ${SUDO} ${MAKE_J} install || exit 1
+  cd ${BASE}/build/ || exit 1
+fi
+
+source ${BASE}/script/build-gdb.sh
+source ${BASE}/script/finalize.sh
diff --git a/build-djgpp.sh b/build-djgpp.sh
index 0ad29f4d..0ca92d0a 100755
--- a/build-djgpp.sh
+++ b/build-djgpp.sh
@@ -1,18 +1,372 @@
 #!/usr/bin/env bash
 
-BUILD_VER=$1
+DJGPP_DOWNLOAD_BASE="http://www.mirrorservice.org/sites/ftp.delorie.com/pub"
+PACKAGE_SOURCES="djgpp binutils common"
+source script/init.sh
 
-if [ -z $BUILD_VER ]; then
-  echo "Usage : $0 djgpp-version"
-  echo "Supported djgpp-version :"
-  for F in `(cd script/;echo *)`; do echo "  "$F; done
-  exit 1
+case $TARGET in
+*-msdosdjgpp) ;;
+*) TARGET="i386-pc-msdosdjgpp" ;;
+esac
+
+prepend BINUTILS_CONFIGURE_OPTIONS "--disable-werror
+                                    --disable-nls"
+
+prepend GCC_CONFIGURE_OPTIONS "--disable-nls
+                               --enable-libquadmath-support
+                               --enable-version-specific-runtime-libs
+                               --enable-fat
+                               --enable-libstdcxx-filesystem-ts"
+
+prepend GDB_CONFIGURE_OPTIONS "--disable-werror
+                               --disable-nls"
+
+DEPS=""
+[ ! -z ${WATT32_VERSION} ] && DEPS+=" gcc djgpp binutils"
+[ ! -z ${GCC_VERSION} ] && DEPS+=" djgpp binutils"
+[ ! -z ${DJGPP_VERSION} ] && DEPS+=" binutils gcc"
+
+source ${BASE}/script/check-deps-and-confirm.sh
+source ${BASE}/script/download.sh
+source ${BASE}/script/build-tools.sh
+
+cd ${BASE}/build/ || exit 1
+
+if [ ! -z ${BINUTILS_VERSION} ]; then
+  if echo ${BINUTILS_VERSION} | grep -q '\.'; then
+    source ${BASE}/script/unpack-build-binutils.sh
+  else
+    mkdir -p bnu${BINUTILS_VERSION}s
+    cd bnu${BINUTILS_VERSION}s
+    if [ ! -e binutils-unpacked ]; then
+      echo "Unpacking binutils..."
+      unzip -oq ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
+
+      pushd gnu/binutils-* || exit 1
+      cat ${BASE}/patch/djgpp-binutils-${BINUTILS_VERSION}/* | patch -p1 -u || exit 1
+      popd
+
+      touch binutils-unpacked
+    fi
+    cd gnu/binutils-* || exit 1
+
+    # exec permission of some files are not set, fix it.
+    for EXEC_FILE in install-sh missing configure; do
+      echo "chmod a+x $EXEC_FILE"
+      chmod a+x $EXEC_FILE || exit 1
+    done
+
+    source ${BASE}/script/build-binutils.sh
+  fi
+fi
+
+cd ${BASE}/build/ || exit 1
+
+if [ ! -z ${WATT32_VERSION} ]; then
+  export WATT_ROOT=${BASE}/build/Watt-32
+  cd ${WATT_ROOT} || exit 1
+  patch -p1 -u < ../../patch/watt32.patch || exit 1
+  cd util/ || exit 1
+  case $(uname) in
+  MINGW*|MSYS*) WATT_UTILS=win32 ;;
+  Linux)        WATT_UTILS=linux ;;
+  *)            WATT_UTILS=linux
+                rm -f linux/*    ;;
+  esac
+  case $(uname -m) in
+  x86_64) ;;
+  *)      rm -f linux/* ;;
+  esac
+  ${MAKE_J} ${WATT_UTILS}
+  for i in mkmake mkdep bin2c; do
+    if ! [ -x ${WATT_UTILS}/$i ]; then
+      echo "Unable to build Watt-32 tool '$i'.  Make sure you have S-Lang installed."
+      exit 1
+    fi
+  done
+  cd ../src/ || exit 1
+  if [ ! "`cat configure-options 2> /dev/null`" == "${CFLAGS_FOR_TARGET}" ]; then
+    ${MAKE_J} -f djgpp.mak clean
+  fi
+  ./configur.sh clean || exit 1
 fi
 
-if [ -x script/$BUILD_VER ]; then
-  echo "Building version : $BUILD_VER"
-  script/$BUILD_VER || exit 1
-else
-  echo "Unsupported version : $BUILD_VER"
-  exit 1
+cd ${BASE}/build/ || exit 1
+
+if [ ! -z ${DJGPP_VERSION} ]; then
+  if [ "${DJGPP_VERSION}" == "cvs" ]; then
+    cd djgpp-cvs || exit 1
+  else
+    echo "Unpacking djgpp..."
+    rm -rf djgpp-${DJGPP_VERSION}/
+    mkdir -p djgpp-${DJGPP_VERSION}/
+    cd djgpp-${DJGPP_VERSION}/ || exit 1
+    unzip -uoq ../../download/djdev${DJGPP_VERSION}.zip || exit 1
+    unzip -uoq ../../download/djlsr${DJGPP_VERSION}.zip || exit 1
+    unzip -uoq ../../download/djcrx${DJGPP_VERSION}.zip || exit 1
+    patch -p1 -u < ../../patch/patch-djcrx${DJGPP_VERSION}.txt || exit 1
+    cat ../../patch/djlsr${DJGPP_VERSION}/* | patch -p1 -u || exit 1
+  fi
+
+  cd src
+  unset COMSPEC
+  sed -i "50cCROSS_PREFIX = ${TARGET}-" makefile.def
+  sed -i "61cGCC = ${CC} -g -O2 ${CFLAGS}" makefile.def
+  if [ ! -z ${GCC_VERSION} ] || [ ! "`cat configure-options 2> /dev/null`" == "${TARGET}:${DST}:${CFLAGS_FOR_TARGET}" ]; then
+    ${MAKE_J} clean
+    rm -f ../lib/*.{a,o}
+  fi
+  ${MAKE} misc.exe makemake.exe || exit 1
+  mkdir -p ../hostbin
+  ${MAKE} -C djasm native || exit 1
+  ${MAKE} -C stub native || exit 1
+  cd ..
+
+  case `uname` in
+  MINGW*) EXE=.exe ;;
+  MSYS*) EXE=.exe ;;
+  *) EXE= ;;
+  esac
+
+  echo "Installing djgpp headers and utilities"
+  ${SUDO} mkdir -p ${DST}/${TARGET}/sys-include || exit 1
+  install_files include/* ${DST}/${TARGET}/sys-include/ || exit 1
+  ${SUDO} mkdir -p ${DST}/bin || exit 1
+  install_files hostbin/stubify.exe  ${DST}/bin/${TARGET}-stubify${EXE}  || exit 1
+  install_files hostbin/stubedit.exe ${DST}/bin/${TARGET}-stubedit${EXE} || exit 1
 fi
+
+cd ${BASE}/build/
+
+if [ ! -z ${GCC_VERSION} ]; then
+  # build gcc
+  untar ${DJCROSS_GCC_ARCHIVE} || exit 1
+  cd djcross-gcc-${GCC_VERSION}/
+
+  BUILDDIR=`pwd`
+  export PATH="${BUILDDIR}/tmpinst/bin:$PATH"
+
+  if [ ! -e ${BUILDDIR}/tmpinst/autoconf-${AUTOCONF_VERSION}-built ]; then
+    echo "Building autoconf"
+    cd $BUILDDIR
+    untar ${AUTOCONF_ARCHIVE} || exit 1
+    cd autoconf-${AUTOCONF_VERSION}/
+      ./configure --prefix=$BUILDDIR/tmpinst || exit 1
+      ${MAKE_J} DESTDIR= all install || exit 1
+    rm ${BUILDDIR}/tmpinst/autoconf-*-built
+    touch ${BUILDDIR}/tmpinst/autoconf-${AUTOCONF_VERSION}-built
+  else
+    echo "autoconf already built, skipping."
+  fi
+
+  if [ ! -e ${BUILDDIR}/tmpinst/automake-${AUTOMAKE_VERSION}-built ]; then
+    echo "Building automake"
+    cd $BUILDDIR
+    untar ${AUTOMAKE_ARCHIVE} || exit 1
+    cd automake-${AUTOMAKE_VERSION}/
+    ./configure --prefix=$BUILDDIR/tmpinst || exit 1
+      ${MAKE} DESTDIR= all install || exit 1
+    rm ${BUILDDIR}/tmpinst/automake-*-built
+    touch ${BUILDDIR}/tmpinst/automake-${AUTOMAKE_VERSION}-built
+  else
+    echo "automake already built, skipping."
+  fi
+
+  cd $BUILDDIR
+
+  if [ ! -e gcc-unpacked ]; then
+    rm -rf $BUILDDIR/gnu/
+
+    if [ `uname` = "FreeBSD" ]; then
+      # The --verbose option is not recognized by BSD patch
+      sed -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
+    fi
+
+    case ${GCC_VERSION} in
+    4.7.3) UNPACK_PATCH=patch-unpack-gcc-4.7.3.txt ;;
+    4.8.0) ;&
+    4.8.1) ;&
+    4.8.2) UNPACK_PATCH=patch-unpack-gcc-4.8.0.txt ;;
+    *)     UNPACK_PATCH=patch-unpack-gcc.txt ;;
+    esac
+
+    patch -p1 -u < ${BASE}/patch/${UNPACK_PATCH} || exit 1
+
+    echo "Unpacking gcc..."
+    mkdir gnu/
+    cd gnu/ || exit 1
+    untar ${GCC_ARCHIVE}
+    cd ..
+
+    echo "Running unpack-gcc.sh"
+    sh unpack-gcc.sh --no-djgpp-source || exit 1
+
+    # patch gnu/gcc-X.XX/gcc/doc/gcc.texi
+    echo "Patch gcc/doc/gcc.texi"
+    cd gnu/gcc-*/gcc/doc || exit 1
+    sed -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
+    cd -
+
+    cd $BUILDDIR/
+
+    pushd gnu/gcc-${GCC_VERSION} || exit 1
+
+    if [ ! -z ${BUILD_DEB} ]; then
+      echo "Unpacking gcc dependencies"
+      for URL in $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE $ISL_ARCHIVE; do
+        FILE=`basename $URL`
+        untar ${FILE}
+        mv ${FILE%.*.*} ${FILE%%-*} || exit 1
+      done
+    else
+      echo "Downloading gcc dependencies"
+      sed -i 's/ftp/http/g' contrib/download_prerequisites
+      ./contrib/download_prerequisites || exit 1
+    fi
+
+    # apply extra patches if necessary
+    cat ${BASE}/patch/djgpp-gcc-${GCC_VERSION}/* | patch -p1 -u || exit 1
+    popd
+
+    touch gcc-unpacked
+  else
+    echo "gcc already unpacked, skipping."
+  fi
+
+  echo "Building gcc (stage 1)"
+
+  mkdir -p djcross
+  cd djcross || exit 1
+
+  TEMP_CFLAGS="$CFLAGS"
+  TEMP_CXXFLAGS="$CXXFLAGS"
+  export CFLAGS="$CFLAGS $GCC_EXTRA_CFLAGS"
+  export CXXFLAGS="$CXXFLAGS $GCC_EXTRA_CXXFLAGS"
+
+  GCC_CONFIGURE_OPTIONS+=" --target=${TARGET} --prefix=${PREFIX} ${HOST_FLAG} ${BUILD_FLAG}
+                           --enable-languages=${ENABLE_LANGUAGES}"
+  strip_whitespace GCC_CONFIGURE_OPTIONS
+
+  if [ ! -e configure-prefix ] || [ ! "`cat configure-prefix`" == "${GCC_CONFIGURE_OPTIONS}" ]; then
+    rm -rf *
+    eval "../gnu/gcc-${GCC_VERSION}/configure ${GCC_CONFIGURE_OPTIONS}" || exit 1
+    echo ${GCC_CONFIGURE_OPTIONS} > configure-prefix
+  else
+    echo "Note: gcc already configured. To force a rebuild, use: rm -rf $(pwd)"
+    sleep 5
+  fi
+
+  cp ${DST}/bin/${TARGET}-stubify ${BUILDDIR}/tmpinst/bin/stubify || exit 1
+
+  ${MAKE_J} all-gcc || exit 1
+  echo "Installing gcc (stage 1)"
+  ${SUDO} ${MAKE_J} install-gcc || exit 1
+
+  CFLAGS="$TEMP_CFLAGS"
+  CXXFLAGS="$TEMP_CXXFLAGS"
+fi
+
+if [ ! -z ${DJGPP_VERSION} ]; then
+  echo "Building djgpp libc"
+  cd ${BASE}/build/djgpp-${DJGPP_VERSION}/src
+  TEMP_CFLAGS="$CFLAGS"
+  TEMP_LDFLAGS="$LDFLAGS"
+  export CFLAGS="$CFLAGS_FOR_TARGET"
+  export LDFLAGS="$LDFLAGS_FOR_TARGET"
+  sed -i 's/Werror/Wno-error/' makefile.cfg
+  ${MAKE} config || exit 1
+  echo "${TARGET}:${DST}:${CFLAGS_FOR_TARGET}" > configure-options
+  ${MAKE_J} -C mkdoc || exit 1
+  ${MAKE_J} -C libc || exit 1
+
+  echo "Installing djgpp libc"
+  ${SUDO} mkdir -p ${DST}/${TARGET}/lib
+  install_files ../lib/* ${DST}/${TARGET}/lib || exit 1
+  LDFLAGS="$TEMP_LDFLAGS"
+  CFLAGS="$TEMP_CFLAGS"
+fi
+
+cd ${BASE}/build/ || exit 1
+
+if [ ! -z ${WATT32_VERSION} ]; then
+  echo "Building Watt-32"
+  cd ${WATT_ROOT}/src || exit 1
+  DJGPP_PREFIX=${TARGET} ./configur.sh djgpp || exit 1
+  cp ${BASE}/patch/watt32-djgpp-$(get_version djgpp)/djgpp.err ../inc/sys/djgpp.err || exit 1
+  cp ${BASE}/patch/watt32-djgpp-$(get_version djgpp)/syserr.c build/djgpp/syserr.c || exit 1
+
+  echo "${CFLAGS_FOR_TARGET}" > configure-options
+
+  export TARGET CFLAGS_FOR_TARGET
+  ${MAKE_J} -f djgpp.mak || exit 1
+
+  echo "Installing Watt-32"
+  ${SUDO} mkdir -p ${DST}/${TARGET}/watt/inc || exit 1
+  ${SUDO} mkdir -p ${DST}/${TARGET}/watt/lib || exit 1
+  install_files ../lib/libwatt.a ${DST}/${TARGET}/watt/lib/ || exit 1
+  ${SUDO} ln -fs ../watt/lib/libwatt.a ${DST}/${TARGET}/lib/libwatt.a || exit 1
+  ${SUDO} ln -fs libwatt.a ${DST}/${TARGET}/lib/libsocket.a || exit 1
+  install_files ../inc/* ${DST}/${TARGET}/watt/inc/ || exit 1
+
+  set_version watt32
+fi
+
+if [ ! -z ${GCC_VERSION} ]; then
+  echo "Building gcc (stage 2)"
+  cd $BUILDDIR/djcross || exit 1
+
+  TEMP_CFLAGS="$CFLAGS"
+  TEMP_CXXFLAGS="$CXXFLAGS"
+  export CFLAGS="$CFLAGS $GCC_EXTRA_CFLAGS"
+  export CXXFLAGS="$CXXFLAGS $GCC_EXTRA_CXXFLAGS"
+
+  export STAGE_CC_WRAPPER="${BASE}/script/destdir-hack.sh ${DST}/${TARGET}"
+  ${MAKE_J} || exit 1
+  [ ! -z $MAKE_CHECK_GCC ] && ${MAKE_J} -s check-gcc | tee ${BASE}/tests/gcc.log
+  echo "Installing gcc (stage 2)"
+  ${SUDO} ${MAKE_J} install-strip || \
+  ${SUDO} ${MAKE_J} install-strip || exit 1
+  ${SUDO} ${MAKE_J} -C mpfr install DESTDIR=${BASE}/build/tmpinst
+
+  CFLAGS="$TEMP_CFLAGS"
+  CXXFLAGS="$TEMP_CXXFLAGS"
+
+  set_version gcc
+fi
+
+if [ ! -z ${DJGPP_VERSION} ]; then
+  echo "Building djgpp libraries"
+  cd ${BASE}/build/djgpp-${DJGPP_VERSION}/src
+  TEMP_CFLAGS="$CFLAGS"
+  TEMP_LDFLAGS="$LDFLAGS"
+  export CFLAGS="$CFLAGS_FOR_TARGET"
+  export LDFLAGS="$LDFLAGS_FOR_TARGET"
+  ${MAKE_J} -C utils native || exit 1
+  ${MAKE_J} -C dxe native || exit 1
+  ${MAKE_J} -C debug || exit 1
+  ${MAKE_J} -C libemu || exit 1
+  ${MAKE_J} -C libm || exit 1
+  ${MAKE_J} -C docs || exit 1
+  ${MAKE_J} -C ../zoneinfo/src
+  ${MAKE_J} -f makempty || exit 1
+  LDFLAGS="$TEMP_LDFLAGS"
+  CFLAGS="$TEMP_CFLAGS"
+  cd ..
+
+  echo "Installing djgpp libraries and utilities"
+  install_files lib/* ${DST}/${TARGET}/lib || exit 1
+  ${SUDO} mkdir -p ${DST}/${TARGET}/share/info
+  install_files info/* ${DST}/${TARGET}/share/info
+  install_files hostbin/exe2coff.exe ${DST}/bin/${TARGET}-exe2coff${EXE} || exit 1
+  install_files hostbin/djasm.exe    ${DST}/bin/${TARGET}-djasm${EXE}    || exit 1
+  install_files hostbin/dxegen.exe   ${DST}/bin/${TARGET}-dxegen${EXE}   || exit 1
+  install_files hostbin/dxegen.exe   ${DST}/bin/${TARGET}-dxe3gen${EXE}  || exit 1
+  install_files hostbin/dxe3res.exe  ${DST}/bin/${TARGET}-dxe3res${EXE}  || exit 1
+
+  set_version djgpp
+fi
+
+cd ${BASE}/build
+
+source ${BASE}/script/build-gdb.sh
+source ${BASE}/script/finalize.sh
diff --git a/build-ia16.sh b/build-ia16.sh
new file mode 100755
index 00000000..050b38b5
--- /dev/null
+++ b/build-ia16.sh
@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+
+PACKAGE_SOURCES="ia16 binutils"
+source script/init.sh
+
+TARGET="ia16-elf"
+
+prepend BINUTILS_CONFIGURE_OPTIONS "--disable-werror
+                                    --disable-nls
+                                    --disable-gdb
+                                    --disable-sim
+                                    --enable-x86-hpa-segelf=yes
+                                    --enable-ld=default
+                                    --enable-gold=yes"
+
+prepend GCC_CONFIGURE_OPTIONS "--disable-nls
+                               --enable-fat
+                               --disable-libstdcxx-dual-abi
+                               --disable-extern-template
+                               --disable-wchar_t
+                               --disable-libstdcxx-verbose"
+
+prepend GDB_CONFIGURE_OPTIONS "--disable-werror
+                               --disable-nls"
+
+prepend NEWLIB_CONFIGURE_OPTIONS "--enable-newlib-elix-level=2 --disable-elks-libc
+                                  --disable-newlib-wide-orient --enable-newlib-nano-malloc
+                                  --disable-newlib-multithread --enable-newlib-global-atexit
+                                  --enable-newlib-reent-small --disable-newlib-fseek-optimization
+                                  --disable-newlib-unbuf-stream-opt --enable-target-optspace
+                                  --enable-newlib-io-c99-formats --enable-newlib-mb --enable-newlib-iconv
+                                  --enable-newlib-iconv-encodings=utf_8,utf_16,cp850,cp852,koi8_uni"
+
+DEPS=""
+[ ! -z ${GCC_VERSION} ] && DEPS+=" newlib binutils"
+[ ! -z ${NEWLIB_VERSION} ] && DEPS+=" gcc binutils"
+
+source ${BASE}/script/check-deps-and-confirm.sh
+source ${BASE}/script/download.sh
+source ${BASE}/script/build-tools.sh
+
+cd ${BASE}/build/ || exit 1
+if [ "$BINUTILS_VERSION" = "ia16" ]; then
+  cd binutils-${BINUTILS_VERSION} || exit 1
+  source ${BASE}/script/build-binutils.sh
+else
+  source ${BASE}/script/unpack-build-binutils.sh
+fi
+
+if [ ! -z ${GCC_VERSION} ]; then
+  cd ${BASE}/build/gcc-ia16/
+  patch -p1 -u < ../../patch/patch-gcc-ia16.txt || exit 1
+  cd -
+fi
+
+source ${BASE}/script/build-newlib-gcc.sh
+source ${BASE}/script/build-gdb.sh
+source ${BASE}/script/finalize.sh
diff --git a/build-newlib.sh b/build-newlib.sh
new file mode 100755
index 00000000..3d8119d4
--- /dev/null
+++ b/build-newlib.sh
@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+PACKAGE_SOURCES="newlib binutils common"
+source script/init.sh
+
+prepend BINUTILS_CONFIGURE_OPTIONS "--disable-werror
+                                    --disable-nls"
+
+prepend GCC_CONFIGURE_OPTIONS "--disable-nls
+                               --enable-libquadmath-support
+                               --enable-version-specific-runtime-libs
+                               --enable-fat"
+
+prepend GDB_CONFIGURE_OPTIONS "--disable-werror
+                               --disable-nls"
+
+DEPS=""
+[ ! -z ${GCC_VERSION} ] && DEPS+=" newlib binutils"
+[ ! -z ${NEWLIB_VERSION} ] && DEPS+=" gcc binutils"
+
+source ${BASE}/script/check-deps-and-confirm.sh
+source ${BASE}/script/download.sh
+source ${BASE}/script/build-tools.sh
+source ${BASE}/script/unpack-build-binutils.sh
+source ${BASE}/script/build-newlib-gcc.sh
+source ${BASE}/script/build-gdb.sh
+source ${BASE}/script/finalize.sh
diff --git a/common/gcc b/common/gcc
new file mode 100644
index 00000000..5fcb86e2
--- /dev/null
+++ b/common/gcc
@@ -0,0 +1 @@
+source common/gcc-12.2.0
diff --git a/common/gcc-10.1.0 b/common/gcc-10.1.0
new file mode 100644
index 00000000..f704af28
--- /dev/null
+++ b/common/gcc-10.1.0
@@ -0,0 +1,12 @@
+GCC_VERSION=10.1.0
+GCC_VERSION_SHORT=10.10
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-10.2.0 b/common/gcc-10.2.0
new file mode 100644
index 00000000..34d3f3c0
--- /dev/null
+++ b/common/gcc-10.2.0
@@ -0,0 +1,12 @@
+GCC_VERSION=10.2.0
+GCC_VERSION_SHORT=10.20
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-10.3.0 b/common/gcc-10.3.0
new file mode 100644
index 00000000..ac4bff05
--- /dev/null
+++ b/common/gcc-10.3.0
@@ -0,0 +1,12 @@
+GCC_VERSION=10.3.0
+GCC_VERSION_SHORT=10.30
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-11.1.0 b/common/gcc-11.1.0
new file mode 100644
index 00000000..ecb6c701
--- /dev/null
+++ b/common/gcc-11.1.0
@@ -0,0 +1,12 @@
+GCC_VERSION=11.1.0
+GCC_VERSION_SHORT=11.10
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-11.2.0 b/common/gcc-11.2.0
new file mode 100644
index 00000000..abeeae5f
--- /dev/null
+++ b/common/gcc-11.2.0
@@ -0,0 +1,12 @@
+GCC_VERSION=11.2.0
+GCC_VERSION_SHORT=11.20
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-12.1.0 b/common/gcc-12.1.0
new file mode 100644
index 00000000..6d0a4145
--- /dev/null
+++ b/common/gcc-12.1.0
@@ -0,0 +1,12 @@
+GCC_VERSION=12.1.0
+GCC_VERSION_SHORT=12.10
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-12.2.0 b/common/gcc-12.2.0
new file mode 100644
index 00000000..e7e02694
--- /dev/null
+++ b/common/gcc-12.2.0
@@ -0,0 +1,12 @@
+GCC_VERSION=12.2.0
+GCC_VERSION_SHORT=12.20
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-4.7.3 b/common/gcc-4.7.3
new file mode 100644
index 00000000..d62a732d
--- /dev/null
+++ b/common/gcc-4.7.3
@@ -0,0 +1,12 @@
+GCC_VERSION=4.7.3
+GCC_VERSION_SHORT=4.73
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="${GCC_CONFIGURE_OPTIONS}"
+
+GCC_EXTRA_CFLAGS="-std=gnu90"
diff --git a/common/gcc-4.8.4 b/common/gcc-4.8.4
new file mode 100644
index 00000000..c3c3f473
--- /dev/null
+++ b/common/gcc-4.8.4
@@ -0,0 +1,13 @@
+GCC_VERSION=4.8.4
+GCC_VERSION_SHORT=4.84
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
+
+GCC_EXTRA_CFLAGS="-std=gnu90"
diff --git a/common/gcc-4.8.5 b/common/gcc-4.8.5
new file mode 100644
index 00000000..f8fb77d7
--- /dev/null
+++ b/common/gcc-4.8.5
@@ -0,0 +1,13 @@
+GCC_VERSION=4.8.5
+GCC_VERSION_SHORT=4.85
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
+
+GCC_EXTRA_CFLAGS="-std=gnu90"
diff --git a/common/gcc-4.9.2 b/common/gcc-4.9.2
new file mode 100644
index 00000000..9469adad
--- /dev/null
+++ b/common/gcc-4.9.2
@@ -0,0 +1,13 @@
+GCC_VERSION=4.9.2
+GCC_VERSION_SHORT=4.92
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
+
+GCC_EXTRA_CFLAGS="-std=gnu90"
diff --git a/common/gcc-4.9.3 b/common/gcc-4.9.3
new file mode 100644
index 00000000..469da59e
--- /dev/null
+++ b/common/gcc-4.9.3
@@ -0,0 +1,13 @@
+GCC_VERSION=4.9.3
+GCC_VERSION_SHORT=4.93
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
+
+GCC_EXTRA_CFLAGS="-std=gnu90"
diff --git a/common/gcc-4.9.4 b/common/gcc-4.9.4
new file mode 100644
index 00000000..ee7fc3f9
--- /dev/null
+++ b/common/gcc-4.9.4
@@ -0,0 +1,13 @@
+GCC_VERSION=4.9.4
+GCC_VERSION_SHORT=4.94
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
+
+GCC_EXTRA_CFLAGS="-std=gnu90"
diff --git a/common/gcc-5.1.0 b/common/gcc-5.1.0
new file mode 100644
index 00000000..5bd7dfbb
--- /dev/null
+++ b/common/gcc-5.1.0
@@ -0,0 +1,12 @@
+GCC_VERSION=5.1.0
+GCC_VERSION_SHORT=5.10
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-5.2.0 b/common/gcc-5.2.0
new file mode 100644
index 00000000..06faec19
--- /dev/null
+++ b/common/gcc-5.2.0
@@ -0,0 +1,12 @@
+GCC_VERSION=5.2.0
+GCC_VERSION_SHORT=5.20
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-5.3.0 b/common/gcc-5.3.0
new file mode 100644
index 00000000..be570a3f
--- /dev/null
+++ b/common/gcc-5.3.0
@@ -0,0 +1,12 @@
+GCC_VERSION=5.3.0
+GCC_VERSION_SHORT=5.30
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-5.4.0 b/common/gcc-5.4.0
new file mode 100644
index 00000000..3316b20d
--- /dev/null
+++ b/common/gcc-5.4.0
@@ -0,0 +1,12 @@
+GCC_VERSION=5.4.0
+GCC_VERSION_SHORT=5.40
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-5.5.0 b/common/gcc-5.5.0
new file mode 100644
index 00000000..d60b0c95
--- /dev/null
+++ b/common/gcc-5.5.0
@@ -0,0 +1,12 @@
+GCC_VERSION=5.5.0
+GCC_VERSION_SHORT=5.50
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-6.1.0 b/common/gcc-6.1.0
new file mode 100644
index 00000000..9b4ea93b
--- /dev/null
+++ b/common/gcc-6.1.0
@@ -0,0 +1,12 @@
+GCC_VERSION=6.1.0
+GCC_VERSION_SHORT=6.10
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-6.2.0 b/common/gcc-6.2.0
new file mode 100644
index 00000000..9ef84198
--- /dev/null
+++ b/common/gcc-6.2.0
@@ -0,0 +1,12 @@
+GCC_VERSION=6.2.0
+GCC_VERSION_SHORT=6.20
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-6.3.0 b/common/gcc-6.3.0
new file mode 100644
index 00000000..ee648cc2
--- /dev/null
+++ b/common/gcc-6.3.0
@@ -0,0 +1,12 @@
+GCC_VERSION=6.3.0
+GCC_VERSION_SHORT=6.30
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-6.4.0 b/common/gcc-6.4.0
new file mode 100644
index 00000000..cbd4b642
--- /dev/null
+++ b/common/gcc-6.4.0
@@ -0,0 +1,13 @@
+GCC_VERSION=6.4.0
+GCC_VERSION_SHORT=6.40
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       --enable-libstdcxx-filesystem-ts \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-7.1.0 b/common/gcc-7.1.0
new file mode 100644
index 00000000..d19a21e5
--- /dev/null
+++ b/common/gcc-7.1.0
@@ -0,0 +1,13 @@
+GCC_VERSION=7.1.0
+GCC_VERSION_SHORT=7.10
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       --enable-libstdcxx-filesystem-ts \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-7.2.0 b/common/gcc-7.2.0
new file mode 100644
index 00000000..06114f2d
--- /dev/null
+++ b/common/gcc-7.2.0
@@ -0,0 +1,13 @@
+GCC_VERSION=7.2.0
+GCC_VERSION_SHORT=7.20
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       --enable-libstdcxx-filesystem-ts \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-7.3.0 b/common/gcc-7.3.0
new file mode 100644
index 00000000..b4679c0c
--- /dev/null
+++ b/common/gcc-7.3.0
@@ -0,0 +1,13 @@
+GCC_VERSION=7.3.0
+GCC_VERSION_SHORT=7.30
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       --enable-libstdcxx-filesystem-ts \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-8.1.0 b/common/gcc-8.1.0
new file mode 100644
index 00000000..72c1409b
--- /dev/null
+++ b/common/gcc-8.1.0
@@ -0,0 +1,13 @@
+GCC_VERSION=8.1.0
+GCC_VERSION_SHORT=8.10
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       --enable-libstdcxx-filesystem-ts \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-8.2.0 b/common/gcc-8.2.0
new file mode 100644
index 00000000..72aa7c64
--- /dev/null
+++ b/common/gcc-8.2.0
@@ -0,0 +1,15 @@
+GCC_VERSION=8.2.0
+GCC_VERSION_SHORT=8.20
+AUTOCONF_VERSION=2.64
+AUTOMAKE_VERSION=1.11.6
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+DJCROSS_GCC_ARCHIVE="http://ap1.pp.fi/djgpp/gcc/${GCC_VERSION}/rpm/djcross-gcc-${GCC_VERSION}.tar.bz2"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       --enable-libstdcxx-filesystem-ts \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-8.3.0 b/common/gcc-8.3.0
new file mode 100644
index 00000000..e9902b1a
--- /dev/null
+++ b/common/gcc-8.3.0
@@ -0,0 +1,13 @@
+GCC_VERSION=8.3.0
+GCC_VERSION_SHORT=8.30
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       --enable-libstdcxx-filesystem-ts \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-9.1.0 b/common/gcc-9.1.0
new file mode 100644
index 00000000..b277f194
--- /dev/null
+++ b/common/gcc-9.1.0
@@ -0,0 +1,12 @@
+GCC_VERSION=9.1.0
+GCC_VERSION_SHORT=9.10
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-9.2.0 b/common/gcc-9.2.0
new file mode 100644
index 00000000..429971c4
--- /dev/null
+++ b/common/gcc-9.2.0
@@ -0,0 +1,12 @@
+GCC_VERSION=9.2.0
+GCC_VERSION_SHORT=9.20
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gcc-9.3.0 b/common/gcc-9.3.0
new file mode 100644
index 00000000..b1e5a35d
--- /dev/null
+++ b/common/gcc-9.3.0
@@ -0,0 +1,12 @@
+GCC_VERSION=9.3.0
+GCC_VERSION_SHORT=9.30
+AUTOCONF_VERSION=2.69
+AUTOMAKE_VERSION=1.15.1
+
+GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
+AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
+AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin \
+                       --enable-lto \
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/common/gdb b/common/gdb
new file mode 100644
index 00000000..d926d3a4
--- /dev/null
+++ b/common/gdb
@@ -0,0 +1 @@
+source common/gdb-14.2
diff --git a/common/gdb-10.1 b/common/gdb-10.1
new file mode 100644
index 00000000..2335d407
--- /dev/null
+++ b/common/gdb-10.1
@@ -0,0 +1,2 @@
+GDB_VERSION=10.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-10.2 b/common/gdb-10.2
new file mode 100644
index 00000000..bb2f5d6a
--- /dev/null
+++ b/common/gdb-10.2
@@ -0,0 +1,2 @@
+GDB_VERSION=10.2
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-11.1 b/common/gdb-11.1
new file mode 100644
index 00000000..14f89a37
--- /dev/null
+++ b/common/gdb-11.1
@@ -0,0 +1,2 @@
+GDB_VERSION=11.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-11.2 b/common/gdb-11.2
new file mode 100644
index 00000000..b70465cd
--- /dev/null
+++ b/common/gdb-11.2
@@ -0,0 +1,2 @@
+GDB_VERSION=11.2
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-12.1 b/common/gdb-12.1
new file mode 100644
index 00000000..0025bbec
--- /dev/null
+++ b/common/gdb-12.1
@@ -0,0 +1,2 @@
+GDB_VERSION=12.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-13.1 b/common/gdb-13.1
new file mode 100644
index 00000000..26d4922f
--- /dev/null
+++ b/common/gdb-13.1
@@ -0,0 +1,2 @@
+GDB_VERSION=13.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-13.2 b/common/gdb-13.2
new file mode 100644
index 00000000..68ec0c89
--- /dev/null
+++ b/common/gdb-13.2
@@ -0,0 +1,2 @@
+GDB_VERSION=13.2
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-14.1 b/common/gdb-14.1
new file mode 100644
index 00000000..27d549f3
--- /dev/null
+++ b/common/gdb-14.1
@@ -0,0 +1,2 @@
+GDB_VERSION=14.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-14.2 b/common/gdb-14.2
new file mode 100644
index 00000000..aec973f3
--- /dev/null
+++ b/common/gdb-14.2
@@ -0,0 +1,2 @@
+GDB_VERSION=14.2
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-7.12.1 b/common/gdb-7.12.1
new file mode 100644
index 00000000..06ce0e10
--- /dev/null
+++ b/common/gdb-7.12.1
@@ -0,0 +1,2 @@
+GDB_VERSION=7.12.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-8.0 b/common/gdb-8.0
new file mode 100644
index 00000000..0d51a64e
--- /dev/null
+++ b/common/gdb-8.0
@@ -0,0 +1,2 @@
+GDB_VERSION=8.0
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-8.0.1 b/common/gdb-8.0.1
new file mode 100644
index 00000000..9358015c
--- /dev/null
+++ b/common/gdb-8.0.1
@@ -0,0 +1,2 @@
+GDB_VERSION=8.0.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-8.1 b/common/gdb-8.1
new file mode 100644
index 00000000..fd87a764
--- /dev/null
+++ b/common/gdb-8.1
@@ -0,0 +1,2 @@
+GDB_VERSION=8.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-8.1.1 b/common/gdb-8.1.1
new file mode 100644
index 00000000..9d305b4f
--- /dev/null
+++ b/common/gdb-8.1.1
@@ -0,0 +1,2 @@
+GDB_VERSION=8.1.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-8.2 b/common/gdb-8.2
new file mode 100644
index 00000000..7355d25c
--- /dev/null
+++ b/common/gdb-8.2
@@ -0,0 +1,2 @@
+GDB_VERSION=8.2
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-8.2.1 b/common/gdb-8.2.1
new file mode 100644
index 00000000..26e0cac3
--- /dev/null
+++ b/common/gdb-8.2.1
@@ -0,0 +1,2 @@
+GDB_VERSION=8.2.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-8.3 b/common/gdb-8.3
new file mode 100644
index 00000000..789a86b9
--- /dev/null
+++ b/common/gdb-8.3
@@ -0,0 +1,2 @@
+GDB_VERSION=8.3
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-8.3.1 b/common/gdb-8.3.1
new file mode 100644
index 00000000..2970fae7
--- /dev/null
+++ b/common/gdb-8.3.1
@@ -0,0 +1,2 @@
+GDB_VERSION=8.3.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-9.1 b/common/gdb-9.1
new file mode 100644
index 00000000..964392aa
--- /dev/null
+++ b/common/gdb-9.1
@@ -0,0 +1,2 @@
+GDB_VERSION=9.1
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/common/gdb-9.2 b/common/gdb-9.2
new file mode 100644
index 00000000..41b73663
--- /dev/null
+++ b/common/gdb-9.2
@@ -0,0 +1,2 @@
+GDB_VERSION=9.2
+GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
diff --git a/debian/binutils-djgpp-doc.install b/debian/binutils-djgpp-doc.install
new file mode 100644
index 00000000..ec0fcc92
--- /dev/null
+++ b/debian/binutils-djgpp-doc.install
@@ -0,0 +1,5 @@
+usr/i386-pc-msdosdjgpp/share/info/gprof.info
+usr/i386-pc-msdosdjgpp/share/info/binutils.info
+usr/i386-pc-msdosdjgpp/share/info/as.info
+usr/i386-pc-msdosdjgpp/share/info/ld.info
+usr/i386-pc-msdosdjgpp/share/info/bfd.info
diff --git a/debian/binutils-djgpp.install b/debian/binutils-djgpp.install
new file mode 100644
index 00000000..1211c9bd
--- /dev/null
+++ b/debian/binutils-djgpp.install
@@ -0,0 +1,33 @@
+usr/i*86-pc-msdosdjgpp/lib/ldscripts/*
+usr/i*86-pc-msdosdjgpp/bin/strings
+usr/i*86-pc-msdosdjgpp/bin/ld
+usr/i*86-pc-msdosdjgpp/bin/readelf
+usr/i*86-pc-msdosdjgpp/bin/ld.bfd
+usr/i*86-pc-msdosdjgpp/bin/size
+usr/i*86-pc-msdosdjgpp/bin/addr2line
+usr/i*86-pc-msdosdjgpp/bin/strip
+usr/i*86-pc-msdosdjgpp/bin/objcopy
+usr/i*86-pc-msdosdjgpp/bin/c++filt
+usr/i*86-pc-msdosdjgpp/bin/ar
+usr/i*86-pc-msdosdjgpp/bin/gprof
+usr/i*86-pc-msdosdjgpp/bin/ranlib
+usr/i*86-pc-msdosdjgpp/bin/as
+usr/i*86-pc-msdosdjgpp/bin/nm
+usr/i*86-pc-msdosdjgpp/bin/elfedit
+usr/i*86-pc-msdosdjgpp/bin/objdump
+usr/bin/i*86-pc-msdosdjgpp-strings
+usr/bin/i*86-pc-msdosdjgpp-ld
+usr/bin/i*86-pc-msdosdjgpp-readelf
+usr/bin/i*86-pc-msdosdjgpp-ld.bfd
+usr/bin/i*86-pc-msdosdjgpp-size
+usr/bin/i*86-pc-msdosdjgpp-addr2line
+usr/bin/i*86-pc-msdosdjgpp-strip
+usr/bin/i*86-pc-msdosdjgpp-objcopy
+usr/bin/i*86-pc-msdosdjgpp-c++filt
+usr/bin/i*86-pc-msdosdjgpp-ar
+usr/bin/i*86-pc-msdosdjgpp-gprof
+usr/bin/i*86-pc-msdosdjgpp-ranlib
+usr/bin/i*86-pc-msdosdjgpp-as
+usr/bin/i*86-pc-msdosdjgpp-nm
+usr/bin/i*86-pc-msdosdjgpp-elfedit
+usr/bin/i*86-pc-msdosdjgpp-objdump
diff --git a/debian/binutils-djgpp.manpages b/debian/binutils-djgpp.manpages
new file mode 100644
index 00000000..15db6d90
--- /dev/null
+++ b/debian/binutils-djgpp.manpages
@@ -0,0 +1,18 @@
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-gprof.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-ar.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-ranlib.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-windmc.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-objdump.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-c++filt.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-strings.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-readelf.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-ld.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-size.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-objcopy.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-as.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-strip.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-dlltool.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-addr2line.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-nm.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-elfedit.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-windres.1
diff --git a/debian/changelog b/debian/changelog
new file mode 100644
index 00000000..0ca17b2a
--- /dev/null
+++ b/debian/changelog
@@ -0,0 +1,191 @@
+djgpp-toolchain (12) UNRELEASED; urgency=medium
+
+  * Set 'Architecture: all' for library packages.
+  * binutils version 2.42.
+
+ -- jwt27 <jwjagersma@gmail.com>  Thu, 30 May 2024 19:31:25 +0200
+
+djgpp-toolchain (11) unstable; urgency=medium
+
+  * Add wrapper script for pkg-config: i386-pc-msdosdjgpp-pkg-config
+  * Fix libc bug in ioctl()/fcntl() that prevented arguments from being passed
+    through to fsext handlers (socket library).
+  * binutils version 2.41.
+
+ -- jwt27 <jwjagersma@gmail.com>  Sun, 29 Oct 2023 14:26:37 +0100
+
+djgpp-toolchain (10) unstable; urgency=medium
+
+  * dxe3gen version 1.0.5.  This now uses gcc to invoke the assembler and
+    linker.  As a result, it is no longer necessary to set any environment
+    variables before use.
+  * binutils version 2.40.
+
+ -- jwt27 <jwjagersma@gmail.com>  Thu, 18 May 2023 14:32:45 +0200
+
+djgpp-toolchain (9) unstable; urgency=medium
+
+  * Update go32 stub in binutils to match libc version.
+
+ -- jwt27 <jwjagersma@gmail.com>  Sun, 20 Nov 2022 23:02:05 +0100
+
+djgpp-toolchain (8) unstable; urgency=low
+
+  * Add virtual packages for gcc and libc.
+  * Set architecture for doc packages to 'all'.
+
+ -- jwt27 <jwjagersma@gmail.com>  Wed, 28 Sep 2022 18:54:18 +0200
+
+djgpp-toolchain (7.1) unstable; urgency=low
+
+  * Move meta-packages to new repository.
+  * The compiler now looks for locally-installed libraries in
+    /usr/i386-pc-msdosdjgpp/local/.
+
+ -- jwt27 <jwjagersma@gmail.com>  Sun, 25 Sep 2022 02:21:08 +0200
+
+djgpp-toolchain (6) unstable; urgency=low
+
+  * Improve Debian package system.
+  * Compile target libraries with '-ffunction-sections -fdata-sections'.
+  * Configure gcc with '--libexecdir=/usr/lib'.
+  * Add convenience packages 'djgpp' and 'djgpp-doc'.
+  * Install documentation in exec-prefix (/usr/i386-pc-msdosdjgpp/).
+  * Drop 'extra' packages and install their contents in exec-prefix.
+
+ -- jwt27 <jwjagersma@gmail.com>  Mon, 19 Sep 2022 19:20:38 +0200
+
+djgpp-toolchain (5) unstable; urgency=low
+
+  * gcc version 12.2.0
+  * binutils version 2.39
+
+ -- jwt27 <jwjagersma@gmail.com>  Tue, 23 Aug 2022 22:48:50 +0200
+
+djgpp-toolchain (4) unstable; urgency=low
+
+  * Enhanced setenv script.  It now has the ability to start a new shell or
+    execute an single command in the target environment.
+
+ -- jwt27 <jwjagersma@gmail.com>  Tue, 16 Aug 2022 18:51:10 +0200
+
+djgpp-toolchain (3) unstable; urgency=low
+
+  * Keep ubuntu release name in binary package version numbers.
+
+ -- jwt27 <jwjagersma@gmail.com>  Mon, 15 Aug 2022 17:21:34 +0200
+
+djgpp-toolchain (2) unstable; urgency=low
+
+  * Correct bash path in rules script.
+
+ -- jwt27 <jwjagersma@gmail.com>  Mon, 15 Aug 2022 16:41:32 +0200
+
+djgpp-toolchain (1) unstable; urgency=low
+
+  * Binary packages for each component now have correct version numbers, and
+    the source package version is changed to just a single number.
+  * As a result of the above change, binutils-djgpp from this package now
+    overrides the one that comes with Debian.
+  * Target libraries are no longer stripped.
+  * Package 'djgpp' has been split into 'djgpp-dev' and 'djgpp-utils'.
+
+ -- jwt27 <jwjagersma@gmail.com>  Mon, 15 Aug 2022 16:24:08 +0200
+
+djgpp-toolchain (0.20220523.0+gcc12.1.0+bnu2.38.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * gcc version 12.1.0
+
+ -- jwt27 <jwjagersma@gmail.com>  Mon, 23 May 2022 16:43:08 +0200
+
+djgpp-toolchain (0.20220317.0+gcc10.3.0+bnu2.38.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * fix build on i386.
+
+ -- jwt27 <jwjagersma@gmail.com>  Thu, 17 Mar 2022 00:53:38 +0100
+
+djgpp-toolchain (0.20220316.2+gcc10.3.0+bnu2.38.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * new package: libwatt-djgpp-dev
+
+ -- jwt27 <jwjagersma@gmail.com>  Wed, 16 Mar 2022 19:08:24 +0100
+
+djgpp-toolchain (0.20220215.0+gcc10.3.0+bnu2.38.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * binutils version 2.38.
+
+ -- jwt27 <jwjagersma@gmail.com>  Tue, 15 Feb 2022 17:49:47 +0100
+
+djgpp-toolchain (0.20211110.0+gcc10.3.0+bnu2.37.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * gcc version 10.3.0.
+  * binutils version 2.37.
+
+ -- jwt27 <jwjagersma@gmail.com>  Wed, 10 Nov 2021 11:35:08 +0100
+
+djgpp-toolchain (0.20210430.0+gcc10.2.0+bnu2.36.1+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * binutils version 2.36.1.
+
+ -- jwt27 <jwjagersma@gmail.com>  Fri, 30 Apr 2021 20:55:58 +0200
+
+djgpp-toolchain (0.20210203.0+gcc10.2.0+bnu2.36.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * binutils version 2.36.
+
+ -- jwt27 <jwjagersma@gmail.com>  Wed, 03 Feb 2021 00:14:56 +0100
+
+djgpp-toolchain (0.20201102.0+gcc10.2.0+bnu2.35.1+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * binutils version 2.35.1.
+
+ -- jwt27 <jwjagersma@gmail.com>  Mon, 02 Nov 2020 21:11:19 +0100
+
+djgpp-toolchain (0.20200730.0+gcc10.2.0+bnu2.34.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * gcc version 10.2.0.
+
+ -- jwt27 <jwjagersma@gmail.com>  Thu, 30 Jul 2020 12:36:44 +0200
+
+djgpp-toolchain (0.20200509.0+gcc10.1.0+bnu2.34.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * gcc version 10.1.0.
+
+ -- jwt27 <jwjagersma@gmail.com>  Sat, 09 May 2020 17:36:20 +0200
+
+djgpp-toolchain (0.20200505.0+gcc9.3.0+bnu2.34.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * gcc version 9.3.0.
+  * patch binutils and gcc to use "b" flag for bss sections.
+
+ -- jwt27 <jwjagersma@gmail.com>  Tue, 05 May 2020 16:35:24 +0200
+
+djgpp-toolchain (0.20200310.0+gcc9.2.0+bnu2.34.0+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * binutils version 2.34.
+
+ -- jwt27 <jwjagersma@gmail.com>  Tue, 10 Mar 2020 21:31:14 +0100
+
+djgpp-toolchain (0.20200229.0+gcc9.2.0+bnu2.33.1+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * make gcc-djgpp in focal depend on 2.34-3ubuntu1+1.4
+
+ -- jwt27 <jwjagersma@gmail.com>  Sat, 29 Feb 2020 16:37:17 +0100
+
+djgpp-toolchain (0.20200213.2+gcc9.2.0+bnu2.33.1+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * remove binutils-djgpp and binutils-djgpp-doc for focal and require upstream binutils-djgpp.
+
+ -- jwt27 <jwjagersma@gmail.com>  Thu, 13 Feb 2020 21:51:35 +0100
+
+djgpp-toolchain (0.20200213.1+gcc9.2.0+bnu2.33.1+gdb8.2.1+djcvs) unstable; urgency=low
+
+  * fix package names in control file.
+
+ -- jwt27 <jwjagersma@gmail.com>  Thu, 13 Feb 2020 16:27:55 +0100
+
+djgpp-toolchain (0.20200213.0+gcc9.2.0+bnu2.33.1+gdb8.2.1+djcvs) unstable; urgency=medium
+
+  * Initial Release.
+
+ -- jwt27 <jwjagersma@gmail.com>  Thu, 13 Feb 2020 02:40:22 +0100
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 00000000..b4de3947
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+11
diff --git a/debian/control b/debian/control
new file mode 100644
index 00000000..726af891
--- /dev/null
+++ b/debian/control
@@ -0,0 +1,117 @@
+Source: djgpp-toolchain
+Section: devel
+Priority: optional
+Maintainer: jwt27 <jwjagersma@gmail.com>
+Build-Depends:
+    git,
+    bash,
+    make,
+    unzip,
+    wget,
+    bison,
+    flex,
+    texinfo,
+    patch,
+    tar,
+    xz-utils,
+    bzip2,
+    gzip,
+    dos2unix,
+    zlib1g-dev,
+    nasm,
+    libslang2-dev,
+    pkg-config,
+    debhelper (>= 11)
+Standards-Version: 4.1.2
+Homepage: https://github.com/jwt27/build-gcc
+
+Package: djgpp-dev
+Architecture: all
+Depends: ${misc:Depends}
+Recommends: binutils-djgpp, gcc-djgpp, djgpp-utils
+Suggests: djgpp-dev-doc
+Provides: libc-djgpp-dev (= ${binary:Version})
+Conflicts: libc-djgpp-dev
+Description: DJGPP development kit -- libraries
+
+Package: djgpp-utils
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Recommends: binutils-djgpp, gcc-djgpp, djgpp-dev
+Description: DJGPP development kit -- utilities
+ Various utilities used to develop djgpp applications:
+ * djasm
+ * dxegen
+ * dxe3gen
+ * dxe3res
+ * exe2coff
+ * setenv
+ * stubedit
+ * stubify
+
+Package: djgpp-dev-doc
+Architecture: all
+Depends: ${misc:Depends}
+Suggests: djgpp-dev
+Description: DJGPP development kit -- documentation
+
+Package: gcc-djgpp
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends},
+ djgpp-utils,
+ binutils-djgpp (>= 2.35.2)
+Recommends: djgpp-dev
+Suggests: gcc-djgpp-doc
+Provides:
+ gcc-i386-pc-msdosdjgpp (= ${binary:Version}),
+ g++-i386-pc-msdosdjgpp (= ${binary:Version}),
+ g++-djgpp (= ${binary:Version}),
+ libstdc++-djgpp-dev (= ${binary:Version})
+Conflicts:
+ gcc-i386-pc-msdosdjgpp,
+ g++-i386-pc-msdosdjgpp,
+ g++-djgpp,
+ libstdc++-djgpp-dev
+Description: GNU Compiler Collection
+ Cross-compiler targeting djgpp.  This package contains both gcc, g++, and
+ libstdc++.
+ If you need compiler support for other languages, please let me know.
+
+Package: gcc-djgpp-doc
+Architecture: all
+Depends: ${misc:Depends}
+Suggests: gcc-djgpp
+Description: GNU Compiler Collection -- documentation
+
+Package: binutils-djgpp
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Recommends: djgpp-utils
+Suggests: binutils-djgpp-doc
+Description: GNU Binutils
+ Linker, assembler and other binary utilities targeting djgpp.
+
+Package: binutils-djgpp-doc
+Architecture: all
+Depends: ${misc:Depends}
+Suggests: binutils-djgpp
+Description: GNU Binutils -- documentation
+
+Package: gdb-djgpp
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Suggests: gdb-djgpp-doc
+Description: GNU Debugger
+ Used to debug djgpp programs over a serial connection.
+
+Package: gdb-djgpp-doc
+Architecture: all
+Depends: ${misc:Depends}
+Suggests: gdb-djgpp
+Description: GNU Debugger -- documentation
+
+Package: libwatt-djgpp-dev
+Architecture: all
+Depends: ${misc:Depends}
+Recommends: djgpp-dev, gcc-djgpp
+Description: Watt-32 TCP socket library for DJGPP
diff --git a/debian/djgpp-dev-doc.install b/debian/djgpp-dev-doc.install
new file mode 100644
index 00000000..41e03f79
--- /dev/null
+++ b/debian/djgpp-dev-doc.install
@@ -0,0 +1,3 @@
+usr/i386-pc-msdosdjgpp/share/info/libm.info
+usr/i386-pc-msdosdjgpp/share/info/libc.info
+usr/i386-pc-msdosdjgpp/share/info/kb.info
diff --git a/debian/djgpp-dev.copyright b/debian/djgpp-dev.copyright
new file mode 100644
index 00000000..ffbbf511
--- /dev/null
+++ b/debian/djgpp-dev.copyright
@@ -0,0 +1,893 @@
+This is the file "copying.dj".  It does NOT apply to any sources or
+binaries copyrighted by UCB Berkeley, the Free Software Foundation, or
+any other agency besides DJ Delorie and others who have agreed to
+allow their sources to be distributed under these terms.
+
+   Copyright Information for sources and executables that are marked
+   Copyright (C) DJ Delorie
+                 334 North Rd
+                 Deerfield NH 03037-1110
+
+This document is Copyright (C) DJ Delorie and may be distributed
+verbatim, but changing it is not allowed.
+
+Source code copyright DJ Delorie is distributed under the terms of the
+GNU General Public Licence, with the following exceptions:
+
+* Sources used to build crt0.o, gcrt0.o, libc.a, libdbg.a, and
+  libemu.a are distributed under the terms of the GNU Library General
+  Public License, rather than the GNU GPL.
+
+* Any existing copyright or authorship information in any given source
+  file must remain intact.  If you modify a source file, a notice to that
+  effect must be added to the authorship information in the source file. 
+
+* Runtime binaries, as provided by DJ in DJGPP, may be distributed
+  without sources ONLY if the recipient is given sufficient information
+  to obtain a copy of djgpp themselves.  This primarily applies to
+  go32-v2.exe, emu387.dxe, and stubedit.exe.
+
+* Runtime objects and libraries, as provided by DJ in DJGPP, when
+  linked into an application, may be distributed without sources ONLY
+  if the recipient is given sufficient information to obtain a copy of
+  djgpp themselves.  This primarily applies to crt0.o and libc.a.
+
+-----
+
+Changes to source code copyright BSD, FSF, or others, by DJ Delorie
+fall under the terms of the original copyright.  Such files usually
+have multiple copyright notices in them.
+
+A copy of the files "COPYING" and "COPYING.LIB" are included with this
+document.  If you did not receive a copy of these files, you may
+obtain one from whence this document was obtained, or by writing:
+
+      Free Software Foundation
+      51 Franklin Street, Fifth Floor
+      Boston, MA 02110-1301
+      USA
+
+-----------------------------------------------------------------------------
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
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+source code.  And you must show them these terms so they know their
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+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
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+want its recipients to know that what they have is not the original, so
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+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+
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+These requirements apply to the modified work as a whole.  If
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+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
diff --git a/debian/djgpp-dev.install b/debian/djgpp-dev.install
new file mode 100644
index 00000000..61c801a0
--- /dev/null
+++ b/debian/djgpp-dev.install
@@ -0,0 +1,11 @@
+usr/i*86-pc-msdosdjgpp/lib/libg.a
+usr/i*86-pc-msdosdjgpp/lib/libm.a
+usr/i*86-pc-msdosdjgpp/lib/libemu.a
+usr/i*86-pc-msdosdjgpp/lib/libpc.a
+usr/i*86-pc-msdosdjgpp/lib/crt0.o
+usr/i*86-pc-msdosdjgpp/lib/djgpp.djl
+usr/i*86-pc-msdosdjgpp/lib/gcrt0.o
+usr/i*86-pc-msdosdjgpp/lib/libc.a
+usr/i*86-pc-msdosdjgpp/lib/libdbg.a
+usr/i*86-pc-msdosdjgpp/lib/libtz.a
+usr/i*86-pc-msdosdjgpp/sys-include/*
diff --git a/debian/djgpp-utils.install b/debian/djgpp-utils.install
new file mode 100644
index 00000000..1936b72e
--- /dev/null
+++ b/debian/djgpp-utils.install
@@ -0,0 +1,17 @@
+usr/i*86-pc-msdosdjgpp/lib/dxe.ld
+usr/i*86-pc-msdosdjgpp/bin/stubedit
+usr/i*86-pc-msdosdjgpp/bin/dxe3gen
+usr/i*86-pc-msdosdjgpp/bin/dxe3res
+usr/i*86-pc-msdosdjgpp/bin/djasm
+usr/i*86-pc-msdosdjgpp/bin/stubify
+usr/i*86-pc-msdosdjgpp/bin/dxegen
+usr/i*86-pc-msdosdjgpp/bin/exe2coff
+usr/bin/i*86-pc-msdosdjgpp-djasm
+usr/bin/i*86-pc-msdosdjgpp-dxe3gen
+usr/bin/i*86-pc-msdosdjgpp-exe2coff
+usr/bin/i*86-pc-msdosdjgpp-stubify
+usr/bin/i*86-pc-msdosdjgpp-dxegen
+usr/bin/i*86-pc-msdosdjgpp-stubedit
+usr/bin/i*86-pc-msdosdjgpp-dxe3res
+usr/bin/i*86-pc-msdosdjgpp-setenv
+usr/bin/i*86-pc-msdosdjgpp-pkg-config
diff --git a/debian/gcc-djgpp-doc.install b/debian/gcc-djgpp-doc.install
new file mode 100644
index 00000000..fb93c7d5
--- /dev/null
+++ b/debian/gcc-djgpp-doc.install
@@ -0,0 +1,9 @@
+usr/i386-pc-msdosdjgpp/share/info/libquadmath.info
+usr/i386-pc-msdosdjgpp/share/info/gccint.info
+usr/i386-pc-msdosdjgpp/share/info/gcc.info
+usr/i386-pc-msdosdjgpp/share/info/cpp.info
+usr/i386-pc-msdosdjgpp/share/info/cppinternals.info
+usr/i386-pc-msdosdjgpp/share/info/gccinstall.info
+usr/i386-pc-msdosdjgpp/share/man/man7/fsf-funding.7
+usr/i386-pc-msdosdjgpp/share/man/man7/gpl.7
+usr/i386-pc-msdosdjgpp/share/man/man7/gfdl.7
diff --git a/debian/gcc-djgpp.copyright b/debian/gcc-djgpp.copyright
new file mode 100644
index 00000000..b2baa64b
--- /dev/null
+++ b/debian/gcc-djgpp.copyright
@@ -0,0 +1,1623 @@
+COPYRIGHT STATEMENTS AND LICENSING TERMS
+
+
+GCC is Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
+1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
+Free Software Foundation, Inc.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Files that have exception clauses are licensed under the terms of the
+GNU General Public License; either version 3, or (at your option) any
+later version.
+
+On Debian GNU/Linux systems, the complete text of the GNU General
+Public License is in `/usr/share/common-licenses/GPL', version 3 of this
+license in `/usr/share/common-licenses/GPL-3'.
+
+The following runtime libraries are licensed under the terms of the
+GNU General Public License (v3 or later) with version 3.1 of the GCC
+Runtime Library Exception (included in this file):
+
+ - libgcc (libgcc/, gcc/libgcc2.[ch], gcc/unwind*, gcc/gthr*,
+   gcc/coretypes.h, gcc/crtstuff.c, gcc/defaults.h, gcc/dwarf2.h,
+   gcc/emults.c, gcc/gbl-ctors.h, gcc/gcov-io.h, gcc/libgcov.c,
+   gcc/tsystem.h, gcc/typeclass.h).
+ - libatomic
+ - libdecnumber
+ - libgomp
+ - libitm
+ - libssp
+ - libstdc++-v3
+ - libobjc
+ - libgfortran
+ - The libgnat-9 Ada support library and libgnatvsn library.
+ - Various config files in gcc/config/ used in runtime libraries.
+ - libvtv
+
+The libbacktrace library is licensed under the following terms:
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    (1) Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer. 
+
+    (2) Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.  
+    
+    (3) The name of the author may not be used to
+    endorse or promote products derived from this software without
+    specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+
+The libsanitizer libraries (libasan, liblsan, libtsan, libubsan) are
+licensed under the following terms:
+
+Copyright (c) 2009-2014 by the LLVM contributors.
+
+All rights reserved.
+
+Developed by:
+
+    LLVM Team
+
+    University of Illinois at Urbana-Champaign
+
+    http://llvm.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal with
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimers.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimers in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the names of the LLVM Team, University of Illinois at
+      Urbana-Champaign, nor the names of its contributors may be used to
+      endorse or promote products derived from this Software without specific
+      prior written permission.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
+SOFTWARE.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+
+The libffi library is licensed under the following terms:
+
+    libffi - Copyright (c) 1996-2003  Red Hat, Inc.
+
+    Permission is hereby granted, free of charge, to any person obtaining
+    a copy of this software and associated documentation files (the
+    ``Software''), to deal in the Software without restriction, including
+    without limitation the rights to use, copy, modify, merge, publish,
+    distribute, sublicense, and/or sell copies of the Software, and to
+    permit persons to whom the Software is furnished to do so, subject to
+    the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
+    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+    IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+    OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+    ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+    OTHER DEALINGS IN THE SOFTWARE.
+
+
+The documentation is licensed under the GNU Free Documentation License (v1.2).
+On Debian GNU/Linux systems, the complete text of this license is in
+`/usr/share/common-licenses/GFDL-1.2'.
+
+
+GCC RUNTIME LIBRARY EXCEPTION
+
+Version 3.1, 31 March 2009
+
+Copyright (C) 2009 Free Software Foundation, Inc. <http://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+This GCC Runtime Library Exception ("Exception") is an additional
+permission under section 7 of the GNU General Public License, version
+3 ("GPLv3"). It applies to a given file (the "Runtime Library") that
+bears a notice placed by the copyright holder of the file stating that
+the file is governed by GPLv3 along with this Exception.
+
+When you use GCC to compile a program, GCC may combine portions of
+certain GCC header files and runtime libraries with the compiled
+program. The purpose of this Exception is to allow compilation of
+non-GPL (including proprietary) programs to use, in this way, the
+header files and runtime libraries covered by this Exception.
+
+0. Definitions.
+
+A file is an "Independent Module" if it either requires the Runtime
+Library for execution after a Compilation Process, or makes use of an
+interface provided by the Runtime Library, but is not otherwise based
+on the Runtime Library.
+
+"GCC" means a version of the GNU Compiler Collection, with or without
+modifications, governed by version 3 (or a specified later version) of
+the GNU General Public License (GPL) with the option of using any
+subsequent versions published by the FSF.
+
+"GPL-compatible Software" is software whose conditions of propagation,
+modification and use would permit combination with GCC in accord with
+the license of GCC.
+
+"Target Code" refers to output from any compiler for a real or virtual
+target processor architecture, in executable form or suitable for
+input to an assembler, loader, linker and/or execution
+phase. Notwithstanding that, Target Code does not include data in any
+format that is used as a compiler intermediate representation, or used
+for producing a compiler intermediate representation.
+
+The "Compilation Process" transforms code entirely represented in
+non-intermediate languages designed for human-written code, and/or in
+Java Virtual Machine byte code, into Target Code. Thus, for example,
+use of source code generators and preprocessors need not be considered
+part of the Compilation Process, since the Compilation Process can be
+understood as starting with the output of the generators or
+preprocessors.
+
+A Compilation Process is "Eligible" if it is done using GCC, alone or
+with other GPL-compatible software, or if it is done without using any
+work based on GCC. For example, using non-GPL-compatible Software to
+optimize any GCC intermediate representations would not qualify as an
+Eligible Compilation Process.
+
+1. Grant of Additional Permission.
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+You have permission to propagate a work of Target Code formed by
+combining the Runtime Library with Independent Modules, even if such
+propagation would otherwise violate the terms of GPLv3, provided that
+all Target Code was generated by Eligible Compilation Processes. You
+may then convey such a combination under terms of your choice,
+consistent with the licensing of the Independent Modules.
+
+2. No Weakening of GCC Copyleft.
+
+The availability of this Exception does not imply any general
+presumption that third-party software is unaffected by the copyleft
+requirements of the license of GCC.
+
+
+libquadmath/*.[hc]:
+
+   Copyright (C) 2010 Free Software Foundation, Inc.
+   Written by Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+   Written by Tobias Burnus  <burnus@net-b.de>
+
+This file is part of the libiberty library.
+Libiberty is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libiberty is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+libquadmath/math:
+
+atanq.c, expm1q.c, j0q.c, j1q.c, log1pq.c, logq.c:
+    Copyright 2001 by Stephen L. Moshier <moshier@na-net.ornl.gov> 
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+coshq.c, erfq.c, jnq.c, lgammaq.c, powq.c, roundq.c:
+   Changes for 128-bit __float128 are
+   Copyright (C) 2001 Stephen L. Moshier <moshier@na-net.ornl.gov>
+   and are incorporated herein by permission of the author.  The author 
+   reserves the right to distribute this material elsewhere under different
+   copying permissions.  These modifications are distributed here under 
+   the following terms:
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+ldexpq.c:
+   * Conversion to long double by Ulrich Drepper,
+   * Cygnus Support, drepper@cygnus.com.
+
+cosq_kernel.c, expq.c, sincos_table.c, sincosq.c, sincosq_kernel.c,
+sinq_kernel.c, truncq.c:
+   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+isinfq.c:
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Change for long double by Jakub Jelinek <jj@ultra.linux.cz>
+ * Public domain.
+
+llroundq.c, lroundq.c, tgammaq.c:
+   Copyright (C) 1997, 1999, 2002, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997 and
+                  Jakub Jelinek <jj@ultra.linux.cz>, 1999.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+log10q.c:
+   Cephes Math Library Release 2.2:  January, 1991
+   Copyright 1984, 1991 by Stephen L. Moshier
+   Adapted for glibc November, 2001
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+remaining files:
+
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+
+
+gcc/go/gofrontend, libgo:
+
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+D:
+gdc-9                         GNU D Compiler
+libphobos-9-dev               D standard runtime library
+
+The D source package is made up of the following components.
+
+The D front-end for GCC:
+ - d/*
+
+Copyright (C) 2004-2007 David Friedman
+Modified by Vincenzo Ampolo, Michael Parrot, Iain Buclaw, (C) 2009, 2010
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+On Debian GNU/Linux systems, the complete text of the GNU General
+Public License is in `/usr/share/common-licenses/GPL', version 2 of this
+license in `/usr/share/common-licenses/GPL-2'.
+
+
+The DMD Compiler implementation of the D programming language:
+ - d/dmd/*
+
+Copyright (c) 1999-2010 by Digital Mars
+All Rights Reserved
+written by Walter Bright
+http://www.digitalmars.com
+License for redistribution is by either the Artistic License or
+the GNU General Public License (v1).
+
+On Debian GNU/Linux systems, the complete text of the GNU General
+Public License is in `/usr/share/common-licenses/GPL', the Artistic
+license in `/usr/share/common-licenses/Artistic'.
+
+
+The Zlib data compression library:
+ - d/phobos/etc/c/zlib/*
+
+ (C) 1995-2004 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+
+The Phobos standard runtime library:
+ - d/phobos/*
+
+Unless otherwise marked within the file, each file in the source
+is under the following licenses:
+
+Copyright (C) 2004-2005 by Digital Mars, www.digitalmars.com
+Written by Walter Bright
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, in both source and binary form, subject to the following
+restrictions:
+
+ o  The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+ o  Altered source versions must be plainly marked as such, and must not
+    be misrepresented as being the original software.
+ o  This notice may not be removed or altered from any source
+    distribution.
+
+By plainly marking modifications, something along the lines of adding to each
+file that has been changed a "Modified by Foo Bar" line
+underneath the "Written by" line would be adequate.
+
+The libhsail-rt library is licensed under the following terms:
+
+   Copyright (C) 2015-2017 Free Software Foundation, Inc.
+   Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com>
+   for General Processor Tech.
+
+   Permission is hereby granted, free of charge, to any person obtaining a
+   copy of this software and associated documentation files
+   (the "Software"), to deal in the Software without restriction, including
+   without limitation the rights to use, copy, modify, merge, publish,
+   distribute, sublicense, and/or sell copies of the Software, and to
+   permit persons to whom the Software is furnished to do so, subject to
+   the following conditions:
+
+   The above copyright notice and this permission notice shall be included
+   in all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+   IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+libhsail-rt/rt/fp16.c is licensed under the following terms:
+
+   Copyright (C) 2008-2017 Free Software Foundation, Inc.
+   Contributed by CodeSourcery.
+
+   This file is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 3, or (at your option) any
+   later version.
+
+   This file is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.
+
+gcc/gm2:
+Copyright (C) 2007-2019 Free Software Foundation, Inc.
+Contributed by Gaius Mulley <gaius@glam.ac.uk>.
+
+This file is part of GNU Modula-2.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GNU Modula-2 is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+gcc/gm2/**/*.texi:
+Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+2011, 2012, 2012, 2013 Free Software Foundation, Inc.
+
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.3 or
+any later version published by the Free Software Foundation; with no
+Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
+
+gcc/gm2/gm2-coroutines:
+Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+              Free Software Foundation, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+gcc/gm2/ulm-lib-gm2:
+Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
+              Free Software Foundation, Inc.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+This file was originally part of the University of Ulm library
+
+Ulm's Modula-2 Library
+Copyright (C) 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993,
+1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+by University of Ulm, SAI, D-89069 Ulm, Germany
+
+gcc/gm2/ulm-lib-gm2/std/M2RTS.mod:
+gcc/gm2/ulm-lib-gm2/std/Storage.mod:
+gcc/gm2/ulm-lib-gm2/std/RTExceptions.mod:
+
+Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+gcc/gm2/gm2-libs:
+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+Free Software Foundation, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+./gm2-libs/cbuiltin.def:
+./gm2-libs/MathLib0.def:
+./gm2-libs/SYSTEM.def:
+./gm2-libs/sckt.def:
+./gm2-libs/Indexing.def:
+./gm2-libs/Builtins.mod:
+./gm2-libs/SFIO.mod:
+./gm2-libs/MathLib0.mod:
+./gm2-libs/gdbif.mod:
+./gm2-libs/M2EXCEPTION.mod:
+./gm2-libs/SFIO.def:
+./gm2-libs/StringConvert.mod:
+./gm2-libs/StringConvert.def:
+./gm2-libs/config-host.in:
+./gm2-libs/Indexing.mod:
+./gm2-libs/errno.def:
+
+Copyright (C) 2001-2019 Free Software Foundation, Inc.
+Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GNU Modula-2 is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+./gm2-libs/M2EXCEPTION.def:
+Library module defined by the International Standard
+Information technology - programming languages
+BS ISO/IEC 10514-1:1996E Part 1: Modula-2, Base Language.
+
+Copyright ISO/IEC (International Organization for Standardization
+and International Electrotechnical Commission) 1996, 1997, 1998,
+1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   
+gcc/gm2/gm2-libiberty/:
+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+              Free Software Foundation, Inc.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+gcc/gm2/gm2-libs-iso/:
+This has a mix of licenses, both LGPL-2.1 and GPL-3.0, plus the apparently
+unmodified definition modules from ISO/IEC.
+
+gcc/gm2/gm2-libs-iso/*.def:
+
+Library module defined by the International Standard
+Information technology - programming languages
+BS ISO/IEC 10514-1:1996E Part 1: Modula-2, Base Language.
+
+Copyright ISO/IEC (International Organization for Standardization
+and International Electrotechnical Commission) 1996, 1997, 1998,
+1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+
+gcc/gm2/gm2-libs-iso/*.def:
+
+Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+gcc/gm2/gm2-libs-iso/*.def:
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+gcc/gm2/gm2-libs-iso/*.mod:
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+gcc/gm2/gm2-libs-iso/*.mod:
+
+Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+gcc/gm2/gm2-libs-min/*:
+Copyright (C) 2001-2019 Free Software Foundation, Inc.
+mix of GPL-3.0 and LGPL-3.0
+
+gcc/gm2/gm2-libs-pim/*:
+Copyright (C) 2001-2019 Free Software Foundation, Inc.
+mix of GPL-3.0 and LGPL-2.1/3
+
+gcc/gm2/gm2-libs-ch/*:
+Copyright (C) 2001-2019 Free Software Foundation, Inc.
+mix of GPL-3.0 and LGPL-2.1/3
+
+gcc/gm2/examples:
+Copyright (C) 2005-2015 Free Software Foundation, Inc.
+Mix of LGPL-2.1 and GPL-3.0.
+
+gcc/gm2/images:
+GPL-3+
+
+gcc/gm2/el/gm2-mode.el:
+;; Everyone is granted permission to copy, modify and redistribute
+;; GNU Emacs, but only under the conditions described in the
+;; GNU Emacs General Public License.   A copy of this license is
+;; supposed to have been given to you along with GNU Emacs so you
+;; can know your rights and responsibilities.  It should be in a
+;; file named COPYING.  Among other things, the copyright notice
+;; and this notice must be preserved on all copies.
+
+gcc/gm2/mc-boot/:
+Copyright (C) 2001-2018 Free Software Foundation, Inc.
+Contributed by Gaius Mulley <gaius@glam.ac.uk>.
+Mix of GPL-3 and LGPL-2.1.
+
+gcc/testsuite/gm2/:
+Copyright (C) 2001-2019 Free Software Foundation, Inc.
+Mix of GPL-2+ and GPL-3+
+
+libgm2:
+
+libgm2/libiso/:
+Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+libgm2/libpim/:
+Copyright (C) 2005-2014 Free Software Foundation, Inc.
+Mix of LGPL-2.1, LGPL-3 and GPL-3.
+
+libgm2/liblog/:
+Copyright (C) 2005-2018 Free Software Foundation, Inc.
+Mix of LGPL-2.1 and LGPL-3.
+
+libgm2/libpth/:
+Copyright: (C) 1999-2006 Ralf S. Engelschall <rse@gnu.org>
+License: LGPL-2.1+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ .
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+libgm2/libulm/:
+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+              Free Software Foundation, Inc.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+libgm2/libcor/:
+Copyright (C) 2005-2019 Free Software Foundation, Inc.
+Contributed by Gaius Mulley <gaius@glam.ac.uk>.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GNU Modula-2 is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+libgm2/libmin/:
+Copyright (C) 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+libgm2/p2c/:
+Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+              Free Software Foundation, Inc.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GNU Modula-2 is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+newlib-X.Y.Z/:
+
+Upstream Authors:
+newlib@sources.redhat.com
+Jeff Johnston <jjohnstn@redhat.com>
+Tom Fitzsimmons <fitzsim@redhat.com>
+
+The newlib subdirectory is a collection of software from several sources.
+Each file may have its own copyright/license that is embedded in the source 
+file.
+
+This list documents those licenses which are more restrictive than
+a BSD-like license or require the copyright notice
+to be duplicated in documentation and/or other materials associated with
+the distribution.  Certain licenses documented here only apply to
+specific targets.  Certain clauses only apply if you are building the
+code as part of your binary.
+
+Note that this list may omit certain licenses that
+only pertain to the copying/modifying of the individual source code. 
+If you are distributing the source code, then you do not need to
+worry about these omitted licenses, so long as you do not modify the
+copyright information already in place.
+
+Parts of this work are licensed under the terms of the GNU General
+Public License. On Debian systems, the complete text of this license
+can be found in /usr/share/common-licenses/GPL.
+
+Parts of this work are licensed under the terms of the GNU Library
+General Public License. On Debian systems, the complete text of this
+license be found in /usr/share/common-licenses/LGPL.
+
+(1) University of California, Berkeley
+
+[1a]
+
+Copyright (c) 1990 The Regents of the University of California.
+All rights reserved.
+
+Redistribution and use in source and binary forms are permitted
+provided that the above copyright notice and this paragraph are
+duplicated in all such forms and that any documentation,
+and other materials related to such distribution and use 
+acknowledge that the software was developed
+by the University of California, Berkeley.  The name of the
+University may not be used to endorse or promote products derived
+from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+[1b]
+
+Copyright (c) 1990 The Regents of the University of California.
+All rights reserved.
+
+Redistribution and use in source and binary forms are permitted
+provided that the above copyright notice and this paragraph are
+duplicated in all such forms and that any documentation,
+advertising materials, and other materials related to such
+distribution and use acknowledge that the software was developed
+by the University of California, Berkeley.  The name of the
+University may not be used to endorse or promote products derived
+from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+[1c]
+
+Copyright (c) 1981, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 
+The Regents of the University of California.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. All advertising materials mentioning features or use of this software
+   must display the following acknowledgement:
+     This product includes software developed by the University of
+     California, Berkeley and its contributors.
+4. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+[1d]
+
+Copyright (c) 1988, 1990, 1993 Regents of the University of California.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+[1e]
+
+Copyright (c) 1982, 1986, 1989, 1991, 1993, 1994
+The Regents of the University of California.  All rights reserved.
+(c) UNIX System Laboratories, Inc.
+All or some portions of this file are derived from material licensed
+to the University of California by American Telephone and Telegraph
+Co. or Unix System Laboratories, Inc. and are reproduced herein with
+the permission of UNIX System Laboratories, Inc.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. All advertising materials mentioning features or use of this software
+   must display the following acknowledgement:
+     This product includes software developed by the University of
+     California, Berkeley and its contributors.
+4. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+[1f]
+
+Copyright (c) 1987, 1988, 2000 Regents of the University of California.
+All rights reserved.
+
+Redistribution and use in source and binary forms are permitted
+provided that: (1) source distributions retain this entire copyright
+notice and comment, and (2) distributions including binaries display
+the following acknowledgement:  ``This product includes software
+developed by the University of California, Berkeley and its contributors''
+in the documentation or other materials provided with the distribution
+and in all advertising materials mentioning features or use of this
+software. Neither the name of the University nor the names of its
+contributors may be used to endorse or promote products derived
+from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+-------------------------------------------------------------
+ Please note that in some of the above alternate licenses, there is a
+ statement regarding that acknowledgement must be made in any
+ advertising materials for products using the code.  This restriction
+ no longer applies due to the following license change:
+
+  ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
+
+ In some cases the defunct clause has been removed in modified newlib code and
+ in some cases, the clause has been left as-is.
+-------------------------------------------------------------
+
+(2) Cygwin (cygwin targets only)
+
+Copyright 2001 Red Hat, Inc.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details.
+
+(3) David M. Gay at AT&T
+
+The author of this software is David M. Gay.
+
+Copyright (c) 1991 by AT&T.
+
+Permission to use, copy, modify, and distribute this software for any
+purpose without fee is hereby granted, provided that this entire notice
+is included in all copies of any software which is or includes a copy
+or modification of this software and in all copies of the supporting
+documentation for such software.
+
+THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTY.  IN PARTICULAR, NEITHER THE AUTHOR NOR AT&T MAKES ANY
+REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
+OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
+
+(4) Advanced Micro Devices
+
+Copyright 1989, 1990 Advanced Micro Devices, Inc.
+
+This software is the property of Advanced Micro Devices, Inc  (AMD)  which
+specifically  grants the user the right to modify, use and distribute this
+software provided this notice is not removed or altered.  All other rights
+are reserved by AMD.
+
+AMD MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS
+SOFTWARE.  IN NO EVENT SHALL AMD BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL
+DAMAGES IN CONNECTION WITH OR ARISING FROM THE FURNISHING, PERFORMANCE, OR
+USE OF THIS SOFTWARE.
+
+So that all may benefit from your experience, please report  any  problems
+or  suggestions about this software to the 29K Technical Support Center at
+800-29-29-AMD (800-292-9263) in the USA, or 0800-89-1131  in  the  UK,  or
+0031-11-1129 in Japan, toll free.  The direct dial number is 512-462-4118.
+
+Advanced Micro Devices, Inc.
+29K Support Products
+Mail Stop 573
+5900 E. Ben White Blvd.
+Austin, TX 78741
+800-292-9263
+
+(5) C.W. Sandmann
+
+Copyright (C) 1993 C.W. Sandmann
+
+This file may be freely distributed as long as the author's name remains.
+
+(6) Eric Backus
+
+(C) Copyright 1992 Eric Backus
+
+This software may be used freely so long as this copyright notice is
+left intact.  There is no warrantee on this software.
+
+(7) Sun Microsystems
+
+Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+
+Developed at SunPro, a Sun Microsystems, Inc. business.
+Permission to use, copy, modify, and distribute this
+software is freely granted, provided that this notice 
+is preserved.
+
+(8) Hewlett Packard
+
+(c) Copyright 1986 HEWLETT-PACKARD COMPANY
+
+To anyone who acknowledges that this file is provided "AS IS"
+without any express or implied warranty:
+    permission to use, copy, modify, and distribute this file
+for any purpose is hereby granted without fee, provided that
+the above copyright notice and this notice appears in all
+copies, and that the name of Hewlett-Packard Company not be
+used in advertising or publicity pertaining to distribution
+of the software without specific, written prior permission.
+Hewlett-Packard Company makes no representations about the
+suitability of this software for any purpose.
+
+(9) Hans-Peter Nilsson
+
+Copyright (C) 2001 Hans-Peter Nilsson
+
+Permission to use, copy, modify, and distribute this software is
+freely granted, provided that the above copyright notice, this notice
+and the following disclaimer are preserved with no changes.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.
+
+(10) Stephane Carrez (m68hc11-elf/m68hc12-elf targets only)
+
+Copyright (C) 1999, 2000, 2001, 2002 Stephane Carrez (stcarrez@nerim.fr)
+
+The authors hereby grant permission to use, copy, modify, distribute,
+and license this software and its documentation for any purpose, provided
+that existing copyright notices are retained in all copies and that this
+notice is included verbatim in any distributions. No written agreement,
+license, or royalty fee is required for any of the authorized uses.
+Modifications to this software may be copyrighted by their authors
+and need not follow the licensing terms described here, provided that
+the new terms are clearly indicated on the first page of each file where
+they apply.
+
+(11) Christopher G. Demetriou
+
+Copyright (c) 2001 Christopher G. Demetriou
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+   derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+(12) SuperH, Inc.
+
+Copyright 2002 SuperH, Inc. All rights reserved
+
+This software is the property of SuperH, Inc (SuperH) which specifically
+grants the user the right to modify, use and distribute this software
+provided this notice is not removed or altered.  All other rights are
+reserved by SuperH.
+
+SUPERH MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO
+THIS SOFTWARE.  IN NO EVENT SHALL SUPERH BE LIABLE FOR INDIRECT, SPECIAL, 
+INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING FROM
+THE FURNISHING, PERFORMANCE, OR USE OF THIS SOFTWARE.
+
+So that all may benefit from your experience, please report any problems
+or suggestions about this software to the SuperH Support Center via
+e-mail at softwaresupport@superh.com .
+
+SuperH, Inc.
+405 River Oaks Parkway
+San Jose
+CA 95134
+USA
+
+(13) Royal Institute of Technology
+
+Copyright (c) 1999 Kungliga Tekniska Hgskolan
+(Royal Institute of Technology, Stockholm, Sweden).
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+3. Neither the name of KTH nor the names of its contributors may be
+   used to endorse or promote products derived from this software without
+   specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+(14) Alexey Zelkin
+
+Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+(15) Andrey A. Chernov
+
+Copyright (C) 1997 by Andrey A. Chernov, Moscow, Russia.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+(16) FreeBSD
+
+Copyright (c) 1997-2002 FreeBSD Project.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+(17) S. L. Moshier
+
+Author:  S. L. Moshier.
+
+Copyright (c) 1984,2000 S.L. Moshier
+
+Permission to use, copy, modify, and distribute this software for any
+purpose without fee is hereby granted, provided that this entire notice
+is included in all copies of any software which is or includes a copy
+or modification of this software and in all copies of the supporting
+documentation for such software.
+
+THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTY.  IN PARTICULAR,  THE AUTHOR MAKES NO REPRESENTATION
+OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS
+SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
+
+(18) Citrus Project
+
+Copyright (c)1999 Citrus Project,
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+(19) Todd C. Miller
+
+Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+   derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+(20) DJ Delorie (i386) 
+
+Copyright (C) 1991 DJ Delorie
+All rights reserved.
+
+Redistribution and use in source and binary forms is permitted
+provided that the above copyright notice and following paragraph are
+duplicated in all such forms.
+
+This file is distributed WITHOUT ANY WARRANTY; without even the implied
+warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+(21) Free Software Foundation LGPL License (*-linux* targets only)
+
+   Copyright (C) 1990-1999, 2000, 2001 
+   Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+   02110-1301 USA
+
+(22) Xavier Leroy LGPL License (i[3456]86-*-linux* targets only)
+
+Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+                                                     
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Library General Public License for more details.
+
+(23) Intel (i960)
+
+Copyright (c) 1993 Intel Corporation
+
+Intel hereby grants you permission to copy, modify, and distribute this
+software and its documentation.  Intel grants this permission provided
+that the above copyright notice appears in all copies and that both the
+copyright notice and this permission notice appear in supporting
+documentation.  In addition, Intel grants this permission provided that
+you prominently mark as "not part of the original" any modifications
+made to this software or documentation, and that the name of Intel
+Corporation not be used in advertising or publicity pertaining to
+distribution of the software or the documentation without specific,
+written prior permission.
+
+Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR
+IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY
+OR FITNESS FOR A PARTICULAR PURPOSE.  Intel makes no guarantee or
+representations regarding the use of, or the results of the use of,
+the software and documentation in terms of correctness, accuracy,
+reliability, currentness, or otherwise; and you rely on the software,
+documentation and results solely at your own risk.
+
+IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS,
+LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES
+OF ANY KIND.  IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM
+PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER.
+
+(24) Hewlett-Packard  (hppa targets only)
+
+(c) Copyright 1986 HEWLETT-PACKARD COMPANY
+
+To anyone who acknowledges that this file is provided "AS IS"
+without any express or implied warranty:
+    permission to use, copy, modify, and distribute this file
+for any purpose is hereby granted without fee, provided that
+the above copyright notice and this notice appears in all
+copies, and that the name of Hewlett-Packard Company not be
+used in advertising or publicity pertaining to distribution
+of the software without specific, written prior permission.
+Hewlett-Packard Company makes no representations about the
+suitability of this software for any purpose.
+
+(25) Henry Spencer (only *-linux targets)
+
+Copyright 1992, 1993, 1994 Henry Spencer.  All rights reserved.
+This software is not subject to any license of the American Telephone
+and Telegraph Company or of the Regents of the University of California.
+
+Permission is granted to anyone to use this software for any purpose on
+any computer system, and to alter it and redistribute it, subject
+to the following restrictions:
+
+1. The author is not responsible for the consequences of use of this
+   software, no matter how awful, even if they arise from flaws in it.
+
+2. The origin of this software must not be misrepresented, either by
+   explicit claim or by omission.  Since few users ever read sources,
+   credits must appear in the documentation.
+
+3. Altered versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.  Since few users
+   ever read sources, credits must appear in the documentation.
+
+4. This notice may not be removed or altered.
+
+(26) Mike Barcroft
+
+Copyright (c) 2001 Mike Barcroft <mike@FreeBSD.org>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+(27) Konstantin Chuguev (--enable-newlib-iconv)
+
+Copyright (c) 1999, 2000
+   Konstantin Chuguev.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+   iconv (Charset Conversion Library) v2.0
+
+(27) Artem Bityuckiy (--enable-newlib-iconv)
+
+Copyright (c) 2003, Artem B. Bityuckiy, SoftMine Corporation.
+Rights transferred to Franklin Electronic Publishers.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+(28) Red Hat Incorporated
+
+Unless otherwise stated in each remaining newlib file, the remaining
+files in the newlib subdirectory default to the following copyright.
+It should be noted that Red Hat Incorporated now owns copyrights
+belonging to Cygnus Solutions and Cygnus Support.
+
+Copyright (c) 1994, 1997, 2001, 2002, 2003, 2004 Red Hat Incorporated.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without 
+modification, are permitted provided that the following conditions are met: 
+
+    Redistributions of source code must retain the above copyright 
+    notice, this list of conditions and the following disclaimer.
+
+    Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+    The name of Red Hat Incorporated may not be used to endorse 
+    or promote products derived from this software without specific 
+    prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED.  IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
diff --git a/debian/gcc-djgpp.install b/debian/gcc-djgpp.install
new file mode 100644
index 00000000..5aec057c
--- /dev/null
+++ b/debian/gcc-djgpp.install
@@ -0,0 +1,29 @@
+usr/lib/gcc/i*86-pc-msdosdjgpp/*
+usr/i*86-pc-msdosdjgpp/bin/g++
+usr/i*86-pc-msdosdjgpp/bin/gcc-nm
+usr/i*86-pc-msdosdjgpp/bin/c++
+usr/i*86-pc-msdosdjgpp/bin/cpp
+usr/i*86-pc-msdosdjgpp/bin/gcc
+usr/i*86-pc-msdosdjgpp/bin/gcc-*.*.*
+usr/i*86-pc-msdosdjgpp/bin/gcov-tool
+usr/i*86-pc-msdosdjgpp/bin/gcc-ranlib
+usr/i*86-pc-msdosdjgpp/bin/gcc-ar
+usr/i*86-pc-msdosdjgpp/bin/g++-*.*.*
+usr/i*86-pc-msdosdjgpp/bin/gcov-dump
+usr/i*86-pc-msdosdjgpp/bin/gcov
+usr/bin/i*86-pc-msdosdjgpp-g++
+usr/bin/i*86-pc-msdosdjgpp-gcc-nm
+usr/bin/i*86-pc-msdosdjgpp-c++
+usr/bin/i*86-pc-msdosdjgpp-cpp
+usr/bin/i*86-pc-msdosdjgpp-gcc
+usr/bin/i*86-pc-msdosdjgpp-gcc-*.*.*
+usr/bin/i*86-pc-msdosdjgpp-gcov-tool
+usr/bin/i*86-pc-msdosdjgpp-gcc-ranlib
+usr/bin/i*86-pc-msdosdjgpp-gcc-ar
+usr/bin/i*86-pc-msdosdjgpp-g++-*.*.*
+usr/bin/i*86-pc-msdosdjgpp-gcov-dump
+usr/bin/i*86-pc-msdosdjgpp-gcov
+usr/i386-pc-msdosdjgpp/share/gcc-*/python/libstdcxx/v6/printers.py
+usr/i386-pc-msdosdjgpp/share/gcc-*/python/libstdcxx/v6/__init__.py
+usr/i386-pc-msdosdjgpp/share/gcc-*/python/libstdcxx/v6/xmethods.py
+usr/i386-pc-msdosdjgpp/share/gcc-*/python/libstdcxx/__init__.py
diff --git a/debian/gcc-djgpp.manpages b/debian/gcc-djgpp.manpages
new file mode 100644
index 00000000..f78d75a5
--- /dev/null
+++ b/debian/gcc-djgpp.manpages
@@ -0,0 +1,6 @@
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-gcov-dump.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-cpp.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-gcov.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-g++.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-gcov-tool.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-gcc.1
diff --git a/debian/gdb-djgpp-doc.install b/debian/gdb-djgpp-doc.install
new file mode 100644
index 00000000..40619ae7
--- /dev/null
+++ b/debian/gdb-djgpp-doc.install
@@ -0,0 +1,3 @@
+usr/i386-pc-msdosdjgpp/share/info/annotate.info
+usr/i386-pc-msdosdjgpp/share/info/gdb.info
+usr/i386-pc-msdosdjgpp/share/info/stabs.info
diff --git a/debian/gdb-djgpp.install b/debian/gdb-djgpp.install
new file mode 100644
index 00000000..b8c921a4
--- /dev/null
+++ b/debian/gdb-djgpp.install
@@ -0,0 +1,21 @@
+usr/i*86-pc-msdosdjgpp/bin/gdb
+usr/bin/i*86-pc-msdosdjgpp-gdb
+usr/bin/i*86-pc-msdosdjgpp-gdb-add-index
+usr/i*86-pc-msdosdjgpp/etc/build-gcc/gdb-version
+usr/i386-pc-msdosdjgpp/share/gdb/system-gdbinit/elinos.py
+usr/i386-pc-msdosdjgpp/share/gdb/system-gdbinit/wrs-linux.py
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/aarch64-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/s390-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/mips-n32-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/sparc64-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/s390x-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/ppc64-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/arm-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/amd64-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/mips-n64-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/freebsd.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/i386-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/ppc-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/sparc-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/mips-o32-linux.xml
+usr/i386-pc-msdosdjgpp/share/gdb/syscalls/gdb-syscalls.dtd
diff --git a/debian/gdb-djgpp.manpages b/debian/gdb-djgpp.manpages
new file mode 100644
index 00000000..d7d18104
--- /dev/null
+++ b/debian/gdb-djgpp.manpages
@@ -0,0 +1,4 @@
+usr/i386-pc-msdosdjgpp/share/man/man5/i386-pc-msdosdjgpp-gdbinit.5
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-gdbserver.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-gdb.1
+usr/i386-pc-msdosdjgpp/share/man/man1/i386-pc-msdosdjgpp-gdb-add-index.1
diff --git a/debian/libwatt-djgpp-dev.install b/debian/libwatt-djgpp-dev.install
new file mode 100644
index 00000000..1561f1ea
--- /dev/null
+++ b/debian/libwatt-djgpp-dev.install
@@ -0,0 +1,3 @@
+usr/i*86-pc-msdosdjgpp/watt/*
+usr/i*86-pc-msdosdjgpp/lib/libwatt.a
+usr/i*86-pc-msdosdjgpp/lib/libsocket.a
diff --git a/debian/pgp-secret.asc b/debian/pgp-secret.asc
new file mode 100644
index 00000000..b8921290
--- /dev/null
+++ b/debian/pgp-secret.asc
@@ -0,0 +1,98 @@
+-----BEGIN PGP MESSAGE-----
+
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+-----END PGP MESSAGE-----
diff --git a/debian/rules b/debian/rules
new file mode 100755
index 00000000..3432f82a
--- /dev/null
+++ b/debian/rules
@@ -0,0 +1,63 @@
+#!/usr/bin/make -f
+
+DPKG_EXPORT_BUILDFLAGS := 1
+include /usr/share/dpkg/default.mk
+
+SHELL := /bin/bash
+
+PACKAGES := djgpp-cvs binutils gcc gdb watt32
+
+git_date = $(shell date --date='$(shell cd $(1) && git log -1 --format=%cI)' -u +%4Y%m%d.%H%M)
+
+GCC_VERSION      = $(shell source ./djgpp/gcc      && echo $$GCC_VERSION)
+BINUTILS_VERSION = $(shell source ./djgpp/binutils && echo $$BINUTILS_VERSION)
+GDB_VERSION      = $(shell source ./djgpp/gdb      && echo $$GDB_VERSION)
+DJGPP_VERSION    = 2.05.cvs.$(call git_date, download/djgpp-cvs)
+WATT32_VERSION   = 2.2.11.git.$(call git_date, download/Watt-32)
+
+%:
+	dh $@
+
+override_dh_gencontrol:
+	dh_gencontrol
+	dh_gencontrol -pdjgpp-utils        -- -v$(DJGPP_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -pdjgpp-dev          -- -v$(DJGPP_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -pdjgpp-dev-doc      -- -v$(DJGPP_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -pgcc-djgpp          -- -v$(GCC_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -pgcc-djgpp-doc      -- -v$(GCC_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -pbinutils-djgpp     -- -v$(BINUTILS_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -pbinutils-djgpp-doc -- -v$(BINUTILS_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -pgdb-djgpp          -- -v$(GDB_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -pgdb-djgpp-doc      -- -v$(GDB_VERSION)+$(DEB_VERSION)
+	dh_gencontrol -plibwatt-djgpp-dev  -- -v$(WATT32_VERSION)+$(DEB_VERSION)
+
+override_dh_strip:
+	dh_strip --exclude=.a
+
+override_dh_auto_clean:
+	cp LICENSE debian/copyright
+	cp LICENSE debian/binutils-djgpp.copyright
+	cp LICENSE debian/gdb-djgpp.copyright
+	cp debian/djgpp-dev.copyright debian/djgpp-utils.copyright
+	cp debian/djgpp-dev.copyright debian/djgpp-dev-doc.copyright
+	cp debian/gcc-djgpp.copyright debian/gcc-djgpp-doc.copyright
+	cp debian/binutils-djgpp.copyright debian/binutils-djgpp-doc.copyright
+	cp debian/gdb-djgpp.copyright debian/gdb-djgpp-doc.copyright
+	./build-djgpp.sh --batch --build-deb --only-download $(PACKAGES)
+	-rm -rf build/ install/ debian/pgp-secret.asc
+
+override_dh_auto_configure:
+
+override_dh_auto_build:
+	GLOBAL_CONFIGURE_OPTIONS='--datarootdir=/usr/i386-pc-msdosdjgpp/share --libexecdir=/usr/lib' \
+	CFLAGS="$(CFLAGS) -Wno-error=format-security" \
+	CXXFLAGS="$(CXXFLAGS) -Wno-error=format-security" \
+	CFLAGS_FOR_TARGET='-O2 -g -ffunction-sections -fdata-sections -mtune=pentium' \
+	CXXFLAGS_FOR_TARGET='-O2 -g -ffunction-sections -fdata-sections -mtune=pentium' \
+	./build-djgpp.sh --batch --build-deb --no-download --prefix=/usr --destdir=$(CURDIR)/install $(PACKAGES)
+
+override_dh_auto_install:
+	sed -i 's#in /#in #' install/usr/bin/i386-pc-msdosdjgpp-link-i586
+	cd install/ && ./usr/bin/i386-pc-msdosdjgpp-link-i586
+	mkdir -p debian/tmp
+	mv -f install/* debian/tmp/
diff --git a/debian/source/format b/debian/source/format
new file mode 100644
index 00000000..89ae9db8
--- /dev/null
+++ b/debian/source/format
@@ -0,0 +1 @@
+3.0 (native)
diff --git a/djgpp/all b/djgpp/all
new file mode 100644
index 00000000..75142442
--- /dev/null
+++ b/djgpp/all
@@ -0,0 +1,3 @@
+source djgpp/default
+source djgpp/gdb
+source djgpp/watt32
diff --git a/djgpp/binutils b/djgpp/binutils
new file mode 100644
index 00000000..aecc1378
--- /dev/null
+++ b/djgpp/binutils
@@ -0,0 +1 @@
+source binutils/binutils
diff --git a/djgpp/binutils-2.29.1 b/djgpp/binutils-2.29.1
new file mode 100644
index 00000000..142fecd8
--- /dev/null
+++ b/djgpp/binutils-2.29.1
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2291
+BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
diff --git a/djgpp/binutils-2.30 b/djgpp/binutils-2.30
new file mode 100644
index 00000000..ccf21501
--- /dev/null
+++ b/djgpp/binutils-2.30
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=230
+BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
diff --git a/djgpp/binutils-2.31.1 b/djgpp/binutils-2.31.1
new file mode 100644
index 00000000..71e5b3a1
--- /dev/null
+++ b/djgpp/binutils-2.31.1
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2311
+BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
diff --git a/djgpp/binutils-2.32 b/djgpp/binutils-2.32
new file mode 100644
index 00000000..e81abd7e
--- /dev/null
+++ b/djgpp/binutils-2.32
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=232
+BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
diff --git a/djgpp/binutils-2.33.1 b/djgpp/binutils-2.33.1
new file mode 100644
index 00000000..d2d87ff3
--- /dev/null
+++ b/djgpp/binutils-2.33.1
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=2331
+BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
diff --git a/djgpp/binutils-2.34 b/djgpp/binutils-2.34
new file mode 100644
index 00000000..1f7cc8c5
--- /dev/null
+++ b/djgpp/binutils-2.34
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=234
+BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2gnu/bnu${BINUTILS_VERSION}s.zip"
diff --git a/djgpp/djgpp b/djgpp/djgpp
new file mode 100644
index 00000000..ffe2eeec
--- /dev/null
+++ b/djgpp/djgpp
@@ -0,0 +1 @@
+source djgpp/djgpp-cvs
diff --git a/djgpp/djgpp-2.05 b/djgpp/djgpp-2.05
new file mode 100644
index 00000000..e55a0e97
--- /dev/null
+++ b/djgpp/djgpp-2.05
@@ -0,0 +1,5 @@
+DJGPP_VERSION=205
+
+DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJGPP_VERSION}.zip"
+DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJGPP_VERSION}.zip"
+DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJGPP_VERSION}.zip"
diff --git a/djgpp/djgpp-cvs b/djgpp/djgpp-cvs
new file mode 100644
index 00000000..02ad5be2
--- /dev/null
+++ b/djgpp/djgpp-cvs
@@ -0,0 +1,2 @@
+DJGPP_VERSION=cvs
+DJGPP_GIT="https://github.com/jwt27/djgpp-cvs.git::jwt27"
diff --git a/djgpp/gcc b/djgpp/gcc
new file mode 100644
index 00000000..8a633721
--- /dev/null
+++ b/djgpp/gcc
@@ -0,0 +1 @@
+source common/gcc
diff --git a/djgpp/gdb b/djgpp/gdb
new file mode 100644
index 00000000..fb4697b0
--- /dev/null
+++ b/djgpp/gdb
@@ -0,0 +1,2 @@
+source common/gdb-8.2.1
+
diff --git a/djgpp/minimal b/djgpp/minimal
new file mode 100644
index 00000000..1d25f1e5
--- /dev/null
+++ b/djgpp/minimal
@@ -0,0 +1,3 @@
+source djgpp/djgpp
+source djgpp/binutils
+source djgpp/gcc
diff --git a/djgpp/watt32 b/djgpp/watt32
new file mode 100644
index 00000000..8ea7d6d1
--- /dev/null
+++ b/djgpp/watt32
@@ -0,0 +1 @@
+source djgpp/watt32-git
diff --git a/djgpp/watt32-git b/djgpp/watt32-git
new file mode 100644
index 00000000..634a50fe
--- /dev/null
+++ b/djgpp/watt32-git
@@ -0,0 +1,2 @@
+WATT32_VERSION=git
+WATT32_GIT='https://github.com/gvanem/Watt-32.git::master'
diff --git a/hello-cpp.cpp b/hello-cpp.cpp
deleted file mode 100644
index cce843c5..00000000
--- a/hello-cpp.cpp
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <stdio.h>
-#include <iostream>
-using namespace std;
-int main()
-{
-  printf("Hello world from C.\n");
-  cout << "Hello world from C++." << endl;
-}
diff --git a/hello.c b/hello.c
deleted file mode 100644
index e4344f80..00000000
--- a/hello.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include <stdio.h>
-int main()
-{
-  printf("Hello world from C.\n");
-}
diff --git a/ia16/all b/ia16/all
new file mode 100644
index 00000000..aa0a34d4
--- /dev/null
+++ b/ia16/all
@@ -0,0 +1 @@
+source ia16/minimal
diff --git a/ia16/binutils b/ia16/binutils
new file mode 100644
index 00000000..a87142f7
--- /dev/null
+++ b/ia16/binutils
@@ -0,0 +1 @@
+source ia16/binutils-ia16
diff --git a/ia16/binutils-ia16 b/ia16/binutils-ia16
new file mode 100644
index 00000000..f2426a72
--- /dev/null
+++ b/ia16/binutils-ia16
@@ -0,0 +1,2 @@
+BINUTILS_VERSION=ia16
+BINUTILS_GIT="https://github.com/tkchia/binutils-ia16.git::binutils-ia16-tkchia"
diff --git a/ia16/gcc b/ia16/gcc
new file mode 100644
index 00000000..cdd6de60
--- /dev/null
+++ b/ia16/gcc
@@ -0,0 +1,9 @@
+GCC_VERSION="ia16"
+ISL_VERSION=0.15
+
+GCC_GIT="https://github.com/tkchia/gcc-ia16.git::gcc-6_3_0-ia16-tkchia"
+
+GCC_CONFIGURE_OPTIONS="--disable-plugin
+                       --enable-lto
+                       --disable-libstdcxx-dual-abi
+                       ${GCC_CONFIGURE_OPTIONS}"
diff --git a/ia16/minimal b/ia16/minimal
new file mode 100644
index 00000000..a8a7da8c
--- /dev/null
+++ b/ia16/minimal
@@ -0,0 +1,3 @@
+source ia16/binutils
+source ia16/gcc
+source ia16/newlib
diff --git a/ia16/newlib b/ia16/newlib
new file mode 100644
index 00000000..429aafb7
--- /dev/null
+++ b/ia16/newlib
@@ -0,0 +1,2 @@
+NEWLIB_VERSION="ia16"
+NEWLIB_GIT="https://github.com/tkchia/newlib-ia16.git::newlib-2_4_0-ia16-tkchia"
diff --git a/newlib/all b/newlib/all
new file mode 100644
index 00000000..7d45f419
--- /dev/null
+++ b/newlib/all
@@ -0,0 +1,2 @@
+source newlib/minimal
+source common/gdb
diff --git a/newlib/minimal b/newlib/minimal
new file mode 100644
index 00000000..064af8fd
--- /dev/null
+++ b/newlib/minimal
@@ -0,0 +1,3 @@
+source newlib/newlib
+source binutils/binutils
+source common/gcc
diff --git a/newlib/newlib b/newlib/newlib
new file mode 100644
index 00000000..075a9d8c
--- /dev/null
+++ b/newlib/newlib
@@ -0,0 +1 @@
+source newlib/newlib-4.3.0.20230120
diff --git a/newlib/newlib-3.0.0 b/newlib/newlib-3.0.0
new file mode 100644
index 00000000..b854c386
--- /dev/null
+++ b/newlib/newlib-3.0.0
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=3.0.0
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-3.0.0.20180226 b/newlib/newlib-3.0.0.20180226
new file mode 100644
index 00000000..d842c125
--- /dev/null
+++ b/newlib/newlib-3.0.0.20180226
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=3.0.0.20180226
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-3.0.0.20180720 b/newlib/newlib-3.0.0.20180720
new file mode 100644
index 00000000..45d2b6d2
--- /dev/null
+++ b/newlib/newlib-3.0.0.20180720
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=3.0.0.20180720
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-3.0.0.20180802 b/newlib/newlib-3.0.0.20180802
new file mode 100644
index 00000000..d9ee829b
--- /dev/null
+++ b/newlib/newlib-3.0.0.20180802
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=3.0.0.20180802
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-3.1.0 b/newlib/newlib-3.1.0
new file mode 100644
index 00000000..dbf34e19
--- /dev/null
+++ b/newlib/newlib-3.1.0
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=3.1.0
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-3.2.0 b/newlib/newlib-3.2.0
new file mode 100644
index 00000000..0980d041
--- /dev/null
+++ b/newlib/newlib-3.2.0
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=3.2.0
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-3.3.0 b/newlib/newlib-3.3.0
new file mode 100644
index 00000000..5903d7d9
--- /dev/null
+++ b/newlib/newlib-3.3.0
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=3.3.0
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-4.0.0 b/newlib/newlib-4.0.0
new file mode 100644
index 00000000..6e8f9239
--- /dev/null
+++ b/newlib/newlib-4.0.0
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=4.0.0
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-4.1.0 b/newlib/newlib-4.1.0
new file mode 100644
index 00000000..35a9c27f
--- /dev/null
+++ b/newlib/newlib-4.1.0
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=4.1.0
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-4.2.0.20211231 b/newlib/newlib-4.2.0.20211231
new file mode 100644
index 00000000..da0c556a
--- /dev/null
+++ b/newlib/newlib-4.2.0.20211231
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=4.2.0.20211231
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/newlib/newlib-4.3.0.20230120 b/newlib/newlib-4.3.0.20230120
new file mode 100644
index 00000000..d7e3b069
--- /dev/null
+++ b/newlib/newlib-4.3.0.20230120
@@ -0,0 +1,2 @@
+NEWLIB_VERSION=4.3.0.20230120
+NEWLIB_ARCHIVE="http://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz"
diff --git a/patch/binutils-2.39/go32stub.patch b/patch/binutils-2.39/go32stub.patch
new file mode 100644
index 00000000..5a4df0ed
--- /dev/null
+++ b/patch/binutils-2.39/go32stub.patch
@@ -0,0 +1,249 @@
+diff --git a/bfd/go32stub.h b/bfd/go32stub.h
+index 333eec068be..55cf60c89ba 100644
+--- a/bfd/go32stub.h
++++ b/bfd/go32stub.h
+@@ -1,128 +1,128 @@
+ 0x4d,0x5a,0x00,0x00,0x04,0x00,0x00,0x00,0x20,0x00,0x27,0x00,0xff,0xff,0x00,0x00,
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+ 0x4a,0xcd,0x21,0x73,0x08,0xd3,0xe3,0xfe,0xcf,0x89,0x1c,0xeb,0xd8,0x26,0x8e,0x06,
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++0x3d,0x08,0x00,0x0f,0x85,0x73,0x01,0xb8,0x00,0x01,0xcd,0x31,0x0f,0x82,0x6a,0x01,
++0xa3,0x1c,0x06,0x89,0x16,0x1e,0x06,0xc1,0xe3,0x04,0x89,0x1e,0x20,0x06,0x66,0x8b,
++0x36,0x08,0x06,0x66,0x8b,0x3e,0xfb,0x07,0x66,0x8b,0x0e,0xff,0x07,0xe8,0x49,0x00,
++0x66,0x8b,0x36,0x0c,0x06,0x66,0x8b,0x3e,0x23,0x08,0x66,0x8b,0x0e,0x27,0x08,0xe8,
++0x37,0x00,0x8e,0x06,0x16,0x06,0x66,0x8b,0x3e,0x4b,0x08,0x66,0x8b,0x0e,0x4f,0x08,
++0x66,0x31,0xc0,0x66,0xc1,0xe9,0x02,0x67,0xf3,0x66,0xab,0xb4,0x3e,0x8b,0x1e,0x06,
++0x06,0xcd,0x21,0xb8,0x01,0x01,0x8b,0x16,0x1e,0x06,0xcd,0x31,0x1e,0x0f,0xa1,0x8e,
++0x1e,0x16,0x06,0x66,0x64,0xff,0x2e,0x10,0x06,0x66,0x89,0xf0,0x66,0x25,0xff,0x01,
++0x00,0x00,0x66,0x01,0xc1,0x29,0xc6,0x66,0x29,0xc7,0x66,0x89,0x0e,0x26,0x06,0x66,
++0x89,0x3e,0x22,0x06,0xe8,0x0f,0x01,0x89,0x36,0x3e,0x06,0x66,0xc1,0xee,0x10,0x89,
++0x36,0x42,0x06,0x8b,0x1e,0x06,0x06,0x89,0x1e,0x3a,0x06,0xc7,0x06,0x46,0x06,0x00,
++0x42,0xe8,0x03,0x01,0xa1,0x1c,0x06,0xa3,0x4e,0x06,0xc7,0x06,0x3e,0x06,0x00,0x00,
++0xc6,0x06,0x47,0x06,0x3f,0xa1,0x28,0x06,0x09,0xc0,0x75,0x09,0xa1,0x26,0x06,0x3b,
++0x06,0x20,0x06,0x76,0x03,0xa1,0x20,0x06,0xa3,0x42,0x06,0xe8,0xd9,0x00,0x66,0x31,
++0xc9,0x8b,0x0e,0x46,0x06,0x66,0x8b,0x3e,0x22,0x06,0x66,0x01,0x0e,0x22,0x06,0x66,
++0x29,0x0e,0x26,0x06,0x66,0x31,0xf6,0xc1,0xe9,0x02,0x1e,0x06,0x8e,0x06,0x16,0x06,
++0x8e,0x1e,0x1e,0x06,0x67,0xf3,0x66,0xa5,0x07,0x1f,0x66,0x03,0x0e,0x26,0x06,0x75,
++0xaf,0xc3,0x3c,0x3a,0x74,0x06,0x3c,0x2f,0x74,0x02,0x3c,0x5c,0xc3,0xbe,0x64,0x07,
++0x89,0xf3,0x26,0x8a,0x05,0x47,0x88,0x04,0x38,0xe0,0x74,0x0e,0x08,0xc0,0x74,0x0a,
++0x46,0xe8,0xde,0xff,0x75,0xec,0x89,0xf3,0x74,0xe8,0xc3,0xb0,0x66,0xba,0x59,0x05,
++0xeb,0x0c,0xb0,0x67,0xba,0x66,0x05,0xeb,0x05,0xb0,0x68,0xba,0x70,0x05,0x52,0x8b,
++0x1e,0x62,0x07,0xc6,0x07,0x24,0xbb,0x64,0x07,0xeb,0x28,0xe8,0xfa,0x00,0xb0,0x69,
++0xba,0xb4,0x05,0xeb,0x1a,0xb0,0x6a,0xba,0xcd,0x05,0xeb,0x13,0xb0,0x6b,0xba,0xdf,
++0x05,0xeb,0x0c,0xb0,0x6c,0xba,0xf1,0x05,0xeb,0x05,0xb0,0x69,0xba,0xb4,0x05,0x52,
++0xbb,0x4c,0x05,0xe8,0x15,0x00,0x5b,0xe8,0x11,0x00,0xbb,0x73,0x04,0xe8,0x0b,0x00,
++0xb4,0x4c,0xcd,0x21,0x43,0x50,0xb4,0x02,0xcd,0x21,0x58,0x8a,0x17,0x80,0xfa,0x24,
++0x75,0xf2,0xc3,0x0d,0x0a,0x24,0x50,0x51,0x57,0x31,0xc0,0xbf,0x2a,0x06,0xb9,0x19,
++0x00,0xf3,0xab,0x5f,0x59,0x58,0xc3,0xb8,0x00,0x03,0xbb,0x21,0x00,0x31,0xc9,0x66,
++0xbf,0x2a,0x06,0x00,0x00,0xcd,0x31,0xc3,0x00,0x00,0x30,0xe4,0xe8,0x4e,0xff,0x89,
++0xde,0x8b,0x3e,0x98,0x04,0xeb,0x1c,0xb4,0x3b,0xe8,0x41,0xff,0x08,0xc0,0x75,0x01,
++0x4f,0x81,0xfe,0x64,0x07,0x74,0x12,0x8a,0x44,0xff,0xe8,0x25,0xff,0x74,0x04,0xc6,
++0x04,0x5c,0x46,0xe8,0x03,0x00,0x72,0xdf,0xc3,0xe8,0x34,0x00,0xbb,0x44,0x00,0x8a,
++0x07,0x88,0x04,0x43,0x46,0x08,0xc0,0x75,0xf6,0x06,0x57,0x1e,0x07,0xe8,0x96,0xff,
++0xbb,0x2a,0x06,0x8c,0x5f,0x04,0x89,0x5f,0x02,0xba,0x64,0x07,0xb8,0x00,0x4b,0xcd,
++0x21,0x5f,0x07,0x72,0x09,0xb4,0x4d,0xcd,0x21,0x2d,0x00,0x03,0xf7,0xd8,0xeb,0x28,
++0x80,0x3e,0x69,0x08,0x05,0x72,0x20,0xb8,0x00,0x58,0xcd,0x21,0xa2,0x67,0x08,0xb8,
++0x02,0x58,0xcd,0x21,0xa2,0x68,0x08,0xb8,0x01,0x58,0xbb,0x80,0x00,0xcd,0x21,0xb8,
++0x03,0x58,0xbb,0x01,0x00,0xcd,0x21,0xc3,0x9c,0x80,0x3e,0x69,0x08,0x05,0x72,0x1a,
++0x50,0x53,0xb8,0x03,0x58,0x8a,0x1e,0x68,0x08,0x30,0xff,0xcd,0x21,0xb8,0x01,0x58,
++0x8a,0x1e,0x67,0x08,0x30,0xff,0xcd,0x21,0x5b,0x58,0x9d,0xc3,0x4c,0x6f,0x61,0x64,
++0x20,0x65,0x72,0x72,0x6f,0x72,0x3a,0x20,0x24,0x3a,0x20,0x63,0x61,0x6e,0x27,0x74,
++0x20,0x6f,0x70,0x65,0x6e,0x24,0x3a,0x20,0x6e,0x6f,0x74,0x20,0x45,0x58,0x45,0x24,
++0x3a,0x20,0x6e,0x6f,0x74,0x20,0x43,0x4f,0x46,0x46,0x20,0x28,0x43,0x68,0x65,0x63,
++0x6b,0x20,0x66,0x6f,0x72,0x20,0x76,0x69,0x72,0x75,0x73,0x65,0x73,0x29,0x24,0x6e,
++0x6f,0x20,0x65,0x6e,0x76,0x73,0x65,0x67,0x24,0x6e,0x6f,0x20,0x44,0x50,0x4d,0x49,
++0x20,0x2d,0x20,0x47,0x65,0x74,0x20,0x63,0x73,0x64,0x70,0x6d,0x69,0x2a,0x62,0x2e,
++0x7a,0x69,0x70,0x24,0x6e,0x6f,0x20,0x44,0x4f,0x53,0x20,0x6d,0x65,0x6d,0x6f,0x72,
++0x79,0x24,0x6e,0x65,0x65,0x64,0x20,0x44,0x4f,0x53,0x20,0x33,0x24,0x63,0x61,0x6e,
++0x27,0x74,0x20,0x73,0x77,0x69,0x74,0x63,0x68,0x20,0x6d,0x6f,0x64,0x65,0x24,0x6e,
++0x6f,0x20,0x44,0x50,0x4d,0x49,0x20,0x73,0x65,0x6c,0x65,0x63,0x74,0x6f,0x72,0x73,
++0x24,0x6e,0x6f,0x20,0x44,0x50,0x4d,0x49,0x20,0x6d,0x65,0x6d,0x6f,0x72,0x79,0x24
diff --git a/patch/patch-bnu27-bfd-init.txt b/patch/djgpp-binutils-227/0001.patch
similarity index 71%
rename from patch/patch-bnu27-bfd-init.txt
rename to patch/djgpp-binutils-227/0001.patch
index e8f98fa3..7639ad97 100644
--- a/patch/patch-bnu27-bfd-init.txt
+++ b/patch/djgpp-binutils-227/0001.patch
@@ -1,5 +1,5 @@
---- init.c.bak	2017-01-31 19:11:07.478074684 +0000
-+++ init.c	2017-01-31 19:24:23.798041848 +0000
+--- a/bfd/init.c	2017-01-31 19:11:07.478074684 +0000
++++ b/bfd/init.c	2017-01-31 19:24:23.798041848 +0000
 @@ -25,9 +25,7 @@
  
  /* This controls if the coff 64k support shall be disabled or not.
diff --git a/patch/djgpp-binutils-2331/0001-byteswap.patch b/patch/djgpp-binutils-2331/0001-byteswap.patch
new file mode 100644
index 00000000..a0ce856a
--- /dev/null
+++ b/patch/djgpp-binutils-2331/0001-byteswap.patch
@@ -0,0 +1,47 @@
+--- a/libctf/swap.h	2020-02-04 02:01:06.703925300 +0100
++++ b/libctf/swap.h	2020-02-04 02:01:35.474802100 +0100
+@@ -23,19 +23,15 @@
+ #include "config.h"
+ #include <stdint.h>
+ 
+-#ifdef HAVE_BYTESWAP_H
+-#include <byteswap.h>
+-#else
+-
+ #ifndef __DJGPP__
+ /* Provide our own versions of the byteswap functions.  */
+-inline uint16_t
++static inline uint16_t
+ bswap_16 (uint16_t v)
+ {
+   return ((v >> 8) & 0xff) | ((v & 0xff) << 8);
+ }
+ 
+-inline uint32_t
++static inline uint32_t
+ bswap_32 (uint32_t v)
+ {
+   return (  ((v & 0xff000000) >> 24)
+@@ -44,13 +40,13 @@
+ 	  | ((v & 0x000000ff) << 24));
+ }
+ 
+-inline uint64_t
++static inline uint64_t
+ bswap_identity_64 (uint64_t v)
+ {
+   return v;
+ }
+ 
+-inline uint64_t
++static inline uint64_t
+ bswap_64 (uint64_t v)
+ {
+   return (  ((v & 0xff00000000000000ULL) >> 56)
+@@ -118,6 +114,4 @@
+   )
+ #endif /* __DJGPP__ */
+ 
+-#endif /* !defined(HAVE_BYTESWAP_H) */
+-
+ #endif /* !defined(_CTF_SWAP_H) */
diff --git a/patch/djgpp-binutils-234/0001-clear-CONTENTS-flag-if-b-flag-is-given-for-COFF-sect.patch b/patch/djgpp-binutils-234/0001-clear-CONTENTS-flag-if-b-flag-is-given-for-COFF-sect.patch
new file mode 100644
index 00000000..0a76cd7b
--- /dev/null
+++ b/patch/djgpp-binutils-234/0001-clear-CONTENTS-flag-if-b-flag-is-given-for-COFF-sect.patch
@@ -0,0 +1,50 @@
+Subject: [PATCH] clear CONTENTS flag if "b" flag is given for COFF section
+From: "J.W. Jagersma" <jwjagersma@gmail.com>
+Date: 2020-03-24 23:20
+
+The "b" flag for COFF sections only unsets the LOAD attribute.  It
+should also clear the CONTENTS attribute so that named bss sections
+don't take up space in an object file.  This can be achieved by
+setting the 'bss' flag in seg_info.
+
+gas/
+2020-03-24  Jan W. Jagersma  <jwjagersma@gmail.com>
+
+	* config/obj-coff.c (obj_coff_section): Set bss flag in
+	seg_info if "b" flag is given.
+---
+ gas/config/obj-coff.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/gas/config/obj-coff.c b/gas/config/obj-coff.c
+index 178ccaad6a..e97d9a22a1 100644
+--- a/gas/config/obj-coff.c
++++ b/gas/config/obj-coff.c
+@@ -1531,6 +1531,7 @@ obj_coff_section (int ignore ATTRIBUTE_UNUSED)
+   char *name;
+   unsigned int exp;
+   flagword flags, oldflags;
++  bfd_boolean is_bss = FALSE;
+   asection *sec;
+ 
+   if (flag_mri)
+@@ -1581,6 +1582,7 @@ obj_coff_section (int ignore ATTRIBUTE_UNUSED)
+ 		  /* Uninitialised data section.  */
+ 		  flags |= SEC_ALLOC;
+ 		  flags &=~ SEC_LOAD;
++		  is_bss = TRUE;
+ 		  break;
+ 
+ 		case 'n':
+@@ -1652,6 +1654,9 @@ obj_coff_section (int ignore ATTRIBUTE_UNUSED)
+ 
+   sec = subseg_new (name, (subsegT) exp);
+ 
++  if (is_bss)
++    seg_info (sec)->bss = 1;
++
+   if (alignment >= 0)
+     sec->alignment_power = alignment;
+ 
+-- 2.25.2
+
diff --git a/patch/djgpp-binutils-234/0002-ldscript.patch b/patch/djgpp-binutils-234/0002-ldscript.patch
new file mode 100644
index 00000000..fe801863
--- /dev/null
+++ b/patch/djgpp-binutils-234/0002-ldscript.patch
@@ -0,0 +1,22 @@
+--- a/ld/scripttempl/i386go32.sc	2020-05-05 17:31:16.921799400 +0200
++++ b/ld/scripttempl/i386go32.sc	2020-05-05 17:31:29.717799400 +0200
+@@ -60,10 +60,6 @@
+     *(.data)
+     ${RELOCATING+*(.data.*)}
+ 
+-    /* Ugly workaround to prevent entire .bss to have attribute CONTENT */
+-    /* for C++ executables. */
+-    *(.bss.*)
+-
+     ${RELOCATING+*(.gcc_exc*)}
+     ${RELOCATING+___EH_FRAME_BEGIN__ = . ;}
+     ${RELOCATING+*(.eh_fram*)}
+@@ -78,7 +74,7 @@
+   ${CONSTRUCTING+${RELOCATING-$DTOR}}
+   .bss ${RELOCATING+ SIZEOF(.data) + ADDR(.data)} :
+   {
+-    *(.bss${RELOCATING+ .gnu.linkonce.b.*})
++    *(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
+     *(COMMON)
+     ${RELOCATING+ end = . ; PROVIDE(_end = .) ;}
+     ${RELOCATING+ . = ALIGN(${SEGMENT_SIZE});}
diff --git a/patch/djgpp-gcc-10.3.0/watt32-errno.patch b/patch/djgpp-gcc-10.3.0/watt32-errno.patch
new file mode 100644
index 00000000..d2c4ba3a
--- /dev/null
+++ b/patch/djgpp-gcc-10.3.0/watt32-errno.patch
@@ -0,0 +1,219 @@
+diff --git a/libstdc++-v3/config/os/djgpp/error_constants.h b/libstdc++-v3/config/os/djgpp/error_constants.h
+index 434de1601e4..a739488247e 100644
+--- a/libstdc++-v3/config/os/djgpp/error_constants.h
++++ b/libstdc++-v3/config/os/djgpp/error_constants.h
+@@ -33,6 +33,11 @@
+ #include <bits/c++config.h>
+ #include <cerrno>
+ 
++// Include Watt-32 errno list, if present
++#if __has_include(<sys/werrno.h>)
++#include <sys/werrno.h>
++#endif
++
+ #ifndef EOPNOTSUPP
+ // Use same value as in wat3222br6.zip file net/watt/sys/djgpp.err
+ #define EOPNOTSUPP 52
+@@ -48,10 +53,22 @@
+ 
+   enum class errc
+     {
+-//    address_family_not_supported = 		EAFNOSUPPORT,
+-//    address_in_use = 				EADDRINUSE,
+-//    address_not_available = 			EADDRNOTAVAIL,
+-//    already_connected = 			EISCONN,
++#ifdef EAFNOSUPPORT
++      address_family_not_supported = 		EAFNOSUPPORT,
++#endif
++
++#ifdef EADDRINUSE
++      address_in_use = 				EADDRINUSE,
++#endif
++
++#ifdef EADDRNOTAVAIL
++      address_not_available = 			EADDRNOTAVAIL,
++#endif
++
++#ifdef EISCONN
++      already_connected = 			EISCONN,
++#endif
++
+       argument_list_too_long = 			E2BIG,
+       argument_out_of_domain = 			EDOM,
+       bad_address = 				EFAULT,
+@@ -62,12 +79,29 @@
+ #endif
+ 
+       broken_pipe = 				EPIPE,
+-//    connection_aborted = 			ECONNABORTED,
+-//    connection_already_in_progress = 		EALREADY,
+-//    connection_refused = 			ECONNREFUSED,
+-//    connection_reset = 			ECONNRESET,
++
++#ifdef ECONNABORTED
++      connection_aborted = 			ECONNABORTED,
++#endif
++
++#ifdef EALREADY
++      connection_already_in_progress = 		EALREADY,
++#endif
++
++#ifdef ECONNREFUSED
++      connection_refused = 			ECONNREFUSED,
++#endif
++
++#ifdef ECONNRESET
++      connection_reset = 			ECONNRESET,
++#endif
++
+       cross_device_link = 			EXDEV,
+-//    destination_address_required = 		EDESTADDRREQ,
++
++#ifdef EDESTADDRREQ
++      destination_address_required = 		EDESTADDRREQ,
++#endif
++
+       device_or_resource_busy = 		EBUSY,
+       directory_not_empty = 			ENOTEMPTY,
+       executable_format_error = 		ENOEXEC,
+@@ -75,7 +109,10 @@
+       file_too_large = 				EFBIG,
+       filename_too_long = 			ENAMETOOLONG,
+       function_not_supported = 			ENOSYS,
+-//    host_unreachable = 			EHOSTUNREACH,
++
++#ifdef EHOSTUNREACH
++      host_unreachable = 			EHOSTUNREACH,
++#endif
+ 
+ #ifdef EIDRM
+       identifier_removed = 			EIDRM,
+@@ -88,11 +125,27 @@
+       invalid_seek = 				ESPIPE,
+       io_error = 				EIO,
+       is_a_directory = 				EISDIR,
+-//    message_size = 				EMSGSIZE,
+-//    network_down = 				ENETDOWN,
+-//    network_reset = 				ENETRESET,
+-//    network_unreachable = 			ENETUNREACH,
+-//    no_buffer_space = 			ENOBUFS,
++
++#ifdef EMSGSIZE
++      message_size = 				EMSGSIZE,
++#endif
++
++#ifdef ENETDOWN
++      network_down = 				ENETDOWN,
++#endif
++
++#ifdef ENETRESET
++      network_reset = 				ENETRESET,
++#endif
++
++#ifdef ENETUNREACH
++      network_unreachable = 			ENETUNREACH,
++#endif
++
++#ifdef ENOBUFS
++      no_buffer_space = 			ENOBUFS,
++#endif
++
+       no_child_process = 			ECHILD,
+ 
+ #ifdef ENOLINK
+@@ -105,8 +158,14 @@
+       no_message_available = 			ENODATA,
+ #endif
+ 
+-//    no_message = 				ENOMSG,
+-//    no_protocol_option = 			ENOPROTOOPT,
++#ifdef ENOMSG
++      no_message = 				ENOMSG,
++#endif
++
++#ifdef ENOPROTOOPT
++      no_protocol_option = 			ENOPROTOOPT,
++#endif
++
+       no_space_on_device = 			ENOSPC,
+ 
+ #ifdef ENOSR
+@@ -118,25 +177,39 @@
+       no_such_file_or_directory = 		ENOENT,
+       no_such_process = 			ESRCH,
+       not_a_directory = 			ENOTDIR,
+-//    not_a_socket = 				ENOTSOCK,
++
++#ifdef ENOTSOCK
++      not_a_socket = 				ENOTSOCK,
++#endif
+ 
+ #ifdef ENOSTR
+       not_a_stream = 				ENOSTR,
+ #endif
+ 
+-//    not_connected = 				ENOTCONN,
++#ifdef ENOTCONN
++      not_connected = 				ENOTCONN,
++#endif
++
+       not_enough_memory = 			ENOMEM,
+ 
++#ifdef ENOTSUP
+       not_supported = 				ENOTSUP,
++#endif
+ 
+ #ifdef ECANCELED
+       operation_canceled = 			ECANCELED,
+ #endif
+ 
+-//    operation_in_progress = 			EINPROGRESS,
++#ifdef EINPROGRESS
++      operation_in_progress = 			EINPROGRESS,
++#endif
++
+       operation_not_permitted = 		EPERM,
+       operation_not_supported = 		EOPNOTSUPP,
+-//    operation_would_block = 			EWOULDBLOCK,
++
++#ifdef EWOULDBLOCK
++      operation_would_block = 			EWOULDBLOCK,
++#endif
+ 
+ #ifdef EOWNERDEAD
+       owner_dead = 				EOWNERDEAD,
+@@ -148,7 +221,10 @@
+       protocol_error = 				EPROTO,
+ #endif
+ 
+-//    protocol_not_supported = 			EPROTONOSUPPORT,
++#ifdef EPROTONOSUPPORT
++      protocol_not_supported = 			EPROTONOSUPPORT,
++#endif
++
+       read_only_file_system = 			EROFS,
+       resource_deadlock_would_occur = 		EDEADLK,
+       resource_unavailable_try_again = 		EAGAIN,
+@@ -166,7 +242,10 @@
+       text_file_busy = 				ETXTBSY,
+ #endif
+ 
+-//    timed_out = 				ETIMEDOUT,
++#ifdef ETIMEDOUT
++      timed_out = 				ETIMEDOUT,
++#endif
++
+       too_many_files_open_in_system = 		ENFILE,
+       too_many_files_open = 			EMFILE,
+       too_many_links = 				EMLINK,
+@@ -176,7 +255,9 @@
+       value_too_large = 			EOVERFLOW,
+ #endif
+ 
+-//    wrong_protocol_type = 			EPROTOTYPE
++#ifdef EPROTOTYPE
++      wrong_protocol_type = 			EPROTOTYPE
++#endif
+     };
+ 
+ _GLIBCXX_END_NAMESPACE_VERSION
diff --git a/patch/djgpp-gcc-8.1.0/0001.patch b/patch/djgpp-gcc-8.1.0/0001.patch
new file mode 100644
index 00000000..60de2f04
--- /dev/null
+++ b/patch/djgpp-gcc-8.1.0/0001.patch
@@ -0,0 +1,81 @@
+diff --git a/gcc/config/i386/djgpp.c b/gcc/config/i386/djgpp.c
+index f168eed6f06..d187c3a7452 100644
+--- a/gcc/config/i386/djgpp.c
++++ b/gcc/config/i386/djgpp.c
+@@ -47,3 +47,20 @@ i386_djgpp_asm_named_section(const char *name, unsigned int flags,
+ 
+   fprintf (asm_out_file, "\t.section\t%s,\"%s\"\n", name, flagchars);
+ }
++
++/* Kludge because of missing COFF support for early LTO debug.  */
++
++static enum debug_info_levels saved_debug_info_level;
++
++void
++i386_djgpp_asm_lto_start (void)
++{
++  saved_debug_info_level = debug_info_level;
++  debug_info_level = DINFO_LEVEL_NONE;
++}
++
++void
++i386_djgpp_asm_lto_end (void)
++{
++  debug_info_level = saved_debug_info_level;
++}
+diff --git a/gcc/config/i386/djgpp.h b/gcc/config/i386/djgpp.h
+index 01774cea4d6..dd8c71b833a 100644
+--- a/gcc/config/i386/djgpp.h
++++ b/gcc/config/i386/djgpp.h
+@@ -157,8 +157,19 @@ along with GCC; see the file COPYING3.  If not see
+ #undef MAKE_DECL_ONE_ONLY
+ #define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
+ 
++#undef TARGET_COFF
++#define TARGET_COFF 1
++
++/* Kludge because of missing COFF support for early LTO debug.  */
++#undef  TARGET_ASM_LTO_START
++#define TARGET_ASM_LTO_START i386_djgpp_asm_lto_start
++#undef  TARGET_ASM_LTO_END
++#define TARGET_ASM_LTO_END i386_djgpp_asm_lto_end
++
+ /* Function protypes for gcc/i386/djgpp.c */
+ 
+ void
+ i386_djgpp_asm_named_section(const char *name, unsigned int flags,
+ 			     tree decl);
++void i386_djgpp_asm_lto_start (void);
++void i386_djgpp_asm_lto_end (void);
+diff --git a/gcc/defaults.h b/gcc/defaults.h
+index 78a08a33f12..9035b333be8 100644
+--- a/gcc/defaults.h
++++ b/gcc/defaults.h
+@@ -1282,6 +1282,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define TARGET_PECOFF 0
+ #endif
+ 
++#ifndef TARGET_COFF
++#define TARGET_COFF 0
++#endif
++
+ #ifndef EH_RETURN_HANDLER_RTX
+ #define EH_RETURN_HANDLER_RTX NULL
+ #endif
+diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
+index 8377cbc5dd1..c75aadbaa2c 100644
+--- a/gcc/dwarf2out.c
++++ b/gcc/dwarf2out.c
+@@ -31938,10 +31938,10 @@ dwarf2out_early_finish (const char *filename)
+ 
+   /* Do not generate DWARF assembler now when not producing LTO bytecode.  */
+   if ((!flag_generate_lto && !flag_generate_offload)
+-      /* FIXME: Disable debug info generation for PE-COFF targets since the
++      /* FIXME: Disable debug info generation for (PE-)COFF targets since the
+ 	 copy_lto_debug_sections operation of the simple object support in
+ 	 libiberty is not implemented for them yet.  */
+-      || TARGET_PECOFF)
++      || TARGET_PECOFF || TARGET_COFF)
+     return;
+ 
+   /* Now as we are going to output for LTO initialize sections and labels
diff --git a/patch/djgpp-gcc-8.2.0/0001.patch b/patch/djgpp-gcc-8.2.0/0001.patch
new file mode 100644
index 00000000..60de2f04
--- /dev/null
+++ b/patch/djgpp-gcc-8.2.0/0001.patch
@@ -0,0 +1,81 @@
+diff --git a/gcc/config/i386/djgpp.c b/gcc/config/i386/djgpp.c
+index f168eed6f06..d187c3a7452 100644
+--- a/gcc/config/i386/djgpp.c
++++ b/gcc/config/i386/djgpp.c
+@@ -47,3 +47,20 @@ i386_djgpp_asm_named_section(const char *name, unsigned int flags,
+ 
+   fprintf (asm_out_file, "\t.section\t%s,\"%s\"\n", name, flagchars);
+ }
++
++/* Kludge because of missing COFF support for early LTO debug.  */
++
++static enum debug_info_levels saved_debug_info_level;
++
++void
++i386_djgpp_asm_lto_start (void)
++{
++  saved_debug_info_level = debug_info_level;
++  debug_info_level = DINFO_LEVEL_NONE;
++}
++
++void
++i386_djgpp_asm_lto_end (void)
++{
++  debug_info_level = saved_debug_info_level;
++}
+diff --git a/gcc/config/i386/djgpp.h b/gcc/config/i386/djgpp.h
+index 01774cea4d6..dd8c71b833a 100644
+--- a/gcc/config/i386/djgpp.h
++++ b/gcc/config/i386/djgpp.h
+@@ -157,8 +157,19 @@ along with GCC; see the file COPYING3.  If not see
+ #undef MAKE_DECL_ONE_ONLY
+ #define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
+ 
++#undef TARGET_COFF
++#define TARGET_COFF 1
++
++/* Kludge because of missing COFF support for early LTO debug.  */
++#undef  TARGET_ASM_LTO_START
++#define TARGET_ASM_LTO_START i386_djgpp_asm_lto_start
++#undef  TARGET_ASM_LTO_END
++#define TARGET_ASM_LTO_END i386_djgpp_asm_lto_end
++
+ /* Function protypes for gcc/i386/djgpp.c */
+ 
+ void
+ i386_djgpp_asm_named_section(const char *name, unsigned int flags,
+ 			     tree decl);
++void i386_djgpp_asm_lto_start (void);
++void i386_djgpp_asm_lto_end (void);
+diff --git a/gcc/defaults.h b/gcc/defaults.h
+index 78a08a33f12..9035b333be8 100644
+--- a/gcc/defaults.h
++++ b/gcc/defaults.h
+@@ -1282,6 +1282,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define TARGET_PECOFF 0
+ #endif
+ 
++#ifndef TARGET_COFF
++#define TARGET_COFF 0
++#endif
++
+ #ifndef EH_RETURN_HANDLER_RTX
+ #define EH_RETURN_HANDLER_RTX NULL
+ #endif
+diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
+index 8377cbc5dd1..c75aadbaa2c 100644
+--- a/gcc/dwarf2out.c
++++ b/gcc/dwarf2out.c
+@@ -31938,10 +31938,10 @@ dwarf2out_early_finish (const char *filename)
+ 
+   /* Do not generate DWARF assembler now when not producing LTO bytecode.  */
+   if ((!flag_generate_lto && !flag_generate_offload)
+-      /* FIXME: Disable debug info generation for PE-COFF targets since the
++      /* FIXME: Disable debug info generation for (PE-)COFF targets since the
+ 	 copy_lto_debug_sections operation of the simple object support in
+ 	 libiberty is not implemented for them yet.  */
+-      || TARGET_PECOFF)
++      || TARGET_PECOFF || TARGET_COFF)
+     return;
+ 
+   /* Now as we are going to output for LTO initialize sections and labels
diff --git a/patch/djgpp-gcc-9.3.0/0001-djgpp-emit-b-flag-for-named-bss-sections.patch b/patch/djgpp-gcc-9.3.0/0001-djgpp-emit-b-flag-for-named-bss-sections.patch
new file mode 100644
index 00000000..5f77c4ec
--- /dev/null
+++ b/patch/djgpp-gcc-9.3.0/0001-djgpp-emit-b-flag-for-named-bss-sections.patch
@@ -0,0 +1,38 @@
+From e869e1d34fde5f3bfba47b10b1db073115ee7152 Mon Sep 17 00:00:00 2001
+From: "J.W. Jagersma" <jwjagersma@gmail.com>
+Date: Wed, 25 Mar 2020 19:56:27 +0100
+Subject: [PATCH] djgpp: emit "b" flag for named bss sections
+
+Unlike ELF, named sections such as .bss.* and .gnu.linkonce.b.* have no
+special meaning in COFF, therefore they will have the CONTENTS, LOAD
+and DATA attributes set.  The result is that these sections take up
+space in object files and executables.  These attributes can be cleared
+by emitting the "b" flag in the .section directive.
+
+This can probably be added in default_coff_asm_named_section too.
+
+gcc/
+2020-03-25  Jan W. Jagersma  <jwjagersma@gmail.com>
+
+	* config/i386/djgpp.c (i386_djgpp_asm_named_section): Emit "b"
+	attribute for SECTION_BSS.
+---
+ gcc/config/i386/djgpp.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/gcc/config/i386/djgpp.c b/gcc/config/i386/djgpp.c
+index ba6c2d4d3a4..88cf1e6506e 100644
+--- a/gcc/config/i386/djgpp.c
++++ b/gcc/config/i386/djgpp.c
+@@ -36,6 +36,8 @@ i386_djgpp_asm_named_section(const char *name, unsigned int flags,
+     *f++ = 'w';
+   if (flags & SECTION_CODE)
+     *f++ = 'x';
++  if (flags & SECTION_BSS)
++    *f++ = 'b';
+ 
+   /* LTO sections need 1-byte alignment to avoid confusing the
+      zlib decompression algorithm with trailing zero pad bytes.  */
+-- 
+2.26.2
+
diff --git a/patch/djlsr205/0001-append-to-CFLAGS-in-libc-posix-regex-makefile-instea.patch b/patch/djlsr205/0001-append-to-CFLAGS-in-libc-posix-regex-makefile-instea.patch
new file mode 100644
index 00000000..1676e0e0
--- /dev/null
+++ b/patch/djlsr205/0001-append-to-CFLAGS-in-libc-posix-regex-makefile-instea.patch
@@ -0,0 +1,26 @@
+From 9e29f38d2ce073bc209cafbb9341dd5756b743da Mon Sep 17 00:00:00 2001
+From: "J.W. Jagersma" <jwjagersma@gmail.com>
+Date: Mon, 10 Feb 2020 18:31:38 +0100
+Subject: [PATCH] append to CFLAGS in libc/posix/regex/makefile, instead of
+ overriding it.
+
+---
+ src/libc/posix/regex/makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/libc/posix/regex/makefile b/src/libc/posix/regex/makefile
+index ef3ca5c1..b8fc260f 100644
+--- a/src/libc/posix/regex/makefile
++++ b/src/libc/posix/regex/makefile
+@@ -4,7 +4,7 @@
+ TOP=../..
+ 
+ # supress all warnings here
+-CFLAGS = -w
++CFLAGS += -w
+ 
+ SRC += regcomp.c
+ SRC += regerror.c
+-- 
+2.25.0
+
diff --git a/patch/djlsr205/0001-fix-handling-of-empty-environment.patch b/patch/djlsr205/0001-fix-handling-of-empty-environment.patch
new file mode 100644
index 00000000..ad8c1fcc
--- /dev/null
+++ b/patch/djlsr205/0001-fix-handling-of-empty-environment.patch
@@ -0,0 +1,118 @@
+From 65d7caeb32f21597938f49364737789727516fdb Mon Sep 17 00:00:00 2001
+From: Stas Sergeev <stsp@users.sourceforge.net>
+Date: Sun, 4 Aug 2019 01:25:38 +0300
+Subject: [PATCH] fix handling of empty environment
+
+Currently if the DOS environment is empty (can happen
+when starting command.com), djgpp startup produces the
+corrupted environment. This patch fixes it by checking
+the loop end condition before loop action.
+
+Another problematic case is the missing environment segment.
+In this case there is no work-around, so the error msg
+is printed and the program terminates.
+---
+ src/libc/crt0/crt1.c | 12 +++++++-----
+ src/stub/stub.asm    | 16 +++++++++++++---
+ 2 files changed, 20 insertions(+), 8 deletions(-)
+
+diff --git a/src/libc/crt0/crt1.c b/src/libc/crt0/crt1.c
+index f0ba9919..37c7dedb 100644
+--- a/src/libc/crt0/crt1.c
++++ b/src/libc/crt0/crt1.c
+@@ -128,31 +128,33 @@ char *__dos_argv0;
+ static void
+ setup_environment(void)
+ {
+-  char *dos_environ = alloca(_stubinfo->env_size), *cp;
++  char *dos_environ, *cp;
+   short env_selector;
+   int env_count=0;
++
++  dos_environ = alloca(_stubinfo->env_size);
+   movedata(_stubinfo->psp_selector, 0x2c, ds, (int)&env_selector, 2);
+   movedata(env_selector, 0, ds, (int)dos_environ, _stubinfo->env_size);
+   cp = dos_environ;
+-  do {
++  while (*cp) { /* repeat until two NULs */
+     env_count++;
+     while (*cp) cp++; /* skip to NUL */
+     cp++; /* skip to next character */
+-  } while (*cp); /* repeat until two NULs */
++  }
+   _environ = (char **)malloc((env_count+1) * sizeof(char *));
+   if (_environ == 0)
+     return;
+ 
+   cp = dos_environ;
+   env_count = 0;
+-  do {
++  while (*cp) { /* repeat until two NULs */
+     /* putenv assumes each string is malloc'd */
+     _environ[env_count] = (char *)malloc(strlen(cp)+1);
+     strcpy(_environ[env_count], cp);
+     env_count++;
+     while (*cp) cp++; /* skip to NUL */
+     cp++; /* skip to next character */
+-  } while (*cp); /* repeat until two NULs */
++  }
+   _environ[env_count] = 0;
+ 
+   /*
+diff --git a/src/stub/stub.asm b/src/stub/stub.asm
+index 62dee9e9..76b2edd6 100644
+--- a/src/stub/stub.asm
++++ b/src/stub/stub.asm
+@@ -160,13 +160,21 @@ resize_again:
+ ;  Scan environment for "PATH=" and the stub's full name after environment
+ 
+ 	mov	es, es:[0x2c]		; get environment segment
++	mov	di, es
++	or	di, di			; check if no env
++	jnz	@f1
++	mov	al, 111
++	mov	dx, msg_no_env
++	jmpl	error
++@f1:
+ 	xor	di, di			; begin search for NUL/NUL (di = 0)
+ ;	mov	cx, 0xff04		; effectively `infinite' loop
+ 	xor 	al, al
+-	.db	0xa9			; "test ax,...." -- skip 2 bytes
++	jmp	@f1
+ scan_environment:
+ 	repne
+ 	scasb				; search for NUL
++@f1:
+ 	cmpw	es:[di], 0x4150		; "PA"
+ 	jne	not_path
+ 	scasw
+@@ -182,6 +190,8 @@ not_path:
+ 	scasb
+ 	jne	scan_environment	; no, still environment
+ 	scasw				; adjust pointer to point to prog name
++	push	es
++	push	di
+ 
+ ;; When we are spawned from a program which has more than 20 handles in use,
+ ;; all the handles passed to us by DOS are taken (since only the first 20
+@@ -199,8 +209,6 @@ not_path:
+ ;-----------------------------------------------------------------------------
+ ;  Get DPMI information before doing anything 386-specific
+ 
+-	push	es
+-	push	di
+ 	xor	cx, cx			; flag for load attempt set cx = 0
+ 	jz	@f2			; We always jump, shorter than jmp
+ @b1:
+@@ -828,6 +836,8 @@ msg_not_exe:
+ 	.db	": not EXE$"
+ msg_not_coff:
+ 	.db	": not COFF (Check for viruses)$"
++msg_no_env:
++	.db	"no envseg$"
+ msg_no_dpmi:
+ 	.db	"no DPMI - Get csdpmi*b.zip$"
+ msg_no_dos_memory:
+-- 
+2.20.1
+
diff --git a/patch/djlsr205/0001-fix-multiple-definition-errors-with-gcc-10.patch b/patch/djlsr205/0001-fix-multiple-definition-errors-with-gcc-10.patch
new file mode 100644
index 00000000..b594209c
--- /dev/null
+++ b/patch/djlsr205/0001-fix-multiple-definition-errors-with-gcc-10.patch
@@ -0,0 +1,46 @@
+From 9fcd924b8eec562eeacf53c92a18e06aacb48fa9 Mon Sep 17 00:00:00 2001
+From: "J.W. Jagersma" <jwjagersma@gmail.com>
+Date: Sat, 9 May 2020 16:55:26 +0200
+Subject: [PATCH] fix multiple definition errors with gcc 10
+
+GCC 10 now defaults to -fno-common, which causes multiple definition
+errors during linking.  In libc, __stdio_cleanup_hook is defined twice,
+and in fsdb, several variables are defined in a header, which is
+included in multiple source files.
+
+To solve this, __stdio_cleanup_hook is declared extern and fsdb can be
+compiled with -fcommon.
+---
+ src/debug/fsdb/makefile     | 2 ++
+ src/libc/ansi/stdlib/exit.c | 2 +-
+ 2 files changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/debug/fsdb/makefile b/src/debug/fsdb/makefile
+index da796d41..41f145fb 100644
+--- a/src/debug/fsdb/makefile
++++ b/src/debug/fsdb/makefile
+@@ -12,6 +12,8 @@ EOBJS += unassmbl.o
+ 
+ include $(TOP)/../makefile.inc
+ 
++CFLAGS += -fcommon
++
+ #relax error checking:
+ XGCC = $(XLGCC)
+ 
+diff --git a/src/libc/ansi/stdlib/exit.c b/src/libc/ansi/stdlib/exit.c
+index 94634b11..79b40ae9 100644
+--- a/src/libc/ansi/stdlib/exit.c
++++ b/src/libc/ansi/stdlib/exit.c
+@@ -15,7 +15,7 @@
+ 
+ struct __atexit *__atexit_ptr = 0;
+ 
+-void (*__stdio_cleanup_hook)(void);
++extern void (*__stdio_cleanup_hook)(void);
+ 
+ /* A hook to close down the file system extensions if any where opened.
+    This does not force them to be linked in. */
+-- 
+2.26.2
+
diff --git a/patch/djlsr205/0001-process-make-descriptor-leak-work-around-conditional.patch b/patch/djlsr205/0001-process-make-descriptor-leak-work-around-conditional.patch
new file mode 100644
index 00000000..02f53432
--- /dev/null
+++ b/patch/djlsr205/0001-process-make-descriptor-leak-work-around-conditional.patch
@@ -0,0 +1,63 @@
+From 12d00dab0e179b4ec1c5a6a7d6e93eb907ef606d Mon Sep 17 00:00:00 2001
+From: Stas Sergeev <stsp@users.sourceforge.net>
+Date: Sat, 17 Aug 2019 19:00:10 +0300
+Subject: [PATCH] process: make descriptor leak work-around conditional
+
+This patch adds the __spawn_flags variable and __spawn_leak_workaround
+flag to allow the software to control the leak work-around.
+Previous behaviour was to always enable the work-around unless
+the DPMI host is cwsdpmi.
+
+Without this patch it is not possible to spawn a prot-mode TSR
+program like 32rtm. djgpp treats it as a leak and wipes out of
+memory. With this patch things work properly if the DPMI server
+is smart enough to direct the control to prev client after 32rtm
+TSRed. The problem is that 32rtm just jumps to the realmode exit
+addr, so the DPMI server doesn't see the exit and may get confused
+unless the special logic is implemented for that case (i.e. not all
+DPMI servers treat that correctly even after that patch).
+---
+ include/process.h              | 4 ++++
+ src/libc/dos/process/dosexec.c | 4 +++-
+ 2 files changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/include/process.h b/include/process.h
+index 2816ce25..e57467d4 100644
+--- a/include/process.h
++++ b/include/process.h
+@@ -52,6 +52,10 @@ int __djgpp_spawn(int _mode, const char *_path, char *const _argv[], char *const
+ #define SPAWN_EXTENSION_SRCH    1
+ #define SPAWN_NO_EXTENSION_SRCH 2
+ 
++#define __spawn_leak_workaround             0x0001 /* free descriptor leaks */
++
++extern int __spawn_flags;
++
+ #endif /* !_POSIX_SOURCE */
+ #endif /* !__STRICT_ANSI__ */
+ #endif /* !__dj_ENFORCE_ANSI_FREESTANDING */
+diff --git a/src/libc/dos/process/dosexec.c b/src/libc/dos/process/dosexec.c
+index 87d7fbd9..d547a31f 100644
+--- a/src/libc/dos/process/dosexec.c
++++ b/src/libc/dos/process/dosexec.c
+@@ -45,6 +45,7 @@
+ extern char **_environ;
+ 
+ int __dosexec_in_system = 0;
++int __spawn_flags = __spawn_leak_workaround;
+ 
+ typedef struct {
+   unsigned short eseg;
+@@ -492,7 +493,8 @@ static int direct_exec_tail (const char *program, const char *args,
+     /* r5 as corresponding DPMI call is supported beginning with v5.  */
+ 
+     ret = __dpmi_get_capabilities(&flags, dpmi_vendor);
+-    if (ret == 0 && strcmp(dpmi_vendor + 2, "CWSDPMI") == 0)
++    if ((ret == 0 && strcmp(dpmi_vendor + 2, "CWSDPMI") == 0)
++        || (__spawn_flags & __spawn_leak_workaround) == 0)
+       workaround_descriptor_leaks = 0;
+     else
+     {
+-- 
+2.20.1
+
diff --git a/patch/djlsr205/patch-djlsr205.txt b/patch/djlsr205/patch-djlsr205.txt
new file mode 100644
index 00000000..4fb28f5d
--- /dev/null
+++ b/patch/djlsr205/patch-djlsr205.txt
@@ -0,0 +1,313 @@
+diff -ur djlsr205-orig/src/dxe/dxe3gen.c djlsr205/src/dxe/dxe3gen.c
+--- djlsr205-orig/src/dxe/dxe3gen.c	2017-04-29 14:32:47.000000000 +0800
++++ djlsr205/src/dxe/dxe3gen.c	2017-04-29 14:33:27.000000000 +0800
+@@ -193,7 +193,7 @@
+ #include "../../include/sys/dxe.h"
+ #include "../../include/coff.h"
+ 
+-#define VERSION  "1.0.3"
++#define VERSION  "1.0.4"
+ 
+ #define TEMP_BASE    "dxe_tmp"       /* 7 chars, 1 char suffix */
+ #define TEMP_O_FILE  TEMP_BASE".o"
+@@ -937,6 +937,7 @@
+   char *strings;
+   RELOC *relocs;
+   unsigned int i, j, errcount;
++  ULONG32 real_nrelocs;
+   size_t hdrsize;
+ 
+   /* Exported symbols table */
+@@ -985,9 +986,18 @@
+   strings[0] = 0;
+ 
+   /* Read the relocation table */
+-  relocs = (RELOC *)malloc(sc.s_nreloc * sizeof(RELOC));
+   fseek(inf, sc.s_relptr, SEEK_SET);
+-  fread(relocs, RELSZ, sc.s_nreloc, inf);
++  if (sc.s_flags & STYP_NRELOC_OVFL) {
++    fread(&real_nrelocs, 4, 1, inf); /* read r_vaddr */
++    fseek(inf, RELSZ - 4, SEEK_CUR); /* skip the rest */
++    dh.nrelocs = --real_nrelocs; /* lose the '+1' */
++    if (opt.verbose)
++      printf("%s: real nrelocs: %lu\n", progname, (unsigned long)real_nrelocs);
++  } else {
++    real_nrelocs = dh.nrelocs;
++  }
++  relocs = (RELOC *)malloc(real_nrelocs * sizeof(RELOC));
++  fread(relocs, RELSZ, real_nrelocs, inf);
+ 
+   /* Close input file */
+   fclose(inf);
+@@ -1042,7 +1052,7 @@
+       int n_abs_relocs = 0, n_rel_relocs = 0;
+ 
+       /* count the amount of relocations pointing to this symbol */
+-      for (j = 0; j < sc.s_nreloc; j++)
++      for (j = 0; j < real_nrelocs; j++)
+       {
+         if (relocs[j].r_symndx == i)
+         {
+@@ -1101,7 +1111,7 @@
+ 
+       unres_size = newsize;
+ 
+-      for (j = 0; j < sc.s_nreloc; j++)
++      for (j = 0; j < real_nrelocs; j++)
+       {
+         if (relocs[j].r_symndx == i)
+         {
+@@ -1145,7 +1155,7 @@
+         BOOL ok = FALSE;
+         for (j = 0; j < opt.num_excl; j++)
+         {
+-          if (memcmp(opt.excl_prefix[j], name, strlen(opt.excl_prefix[j])) == 0)
++          if (strncmp(opt.excl_prefix[j], name, strlen(opt.excl_prefix[j])) == 0)
+           {
+             ok = TRUE;
+             break;
+@@ -1160,7 +1170,7 @@
+         BOOL ok = FALSE;
+         for (j = 0; j < opt.num_prefix; j++)
+         {
+-          if (memcmp(opt.export_prefix[j], name, strlen(opt.export_prefix[j])) == 0)
++          if (strncmp(opt.export_prefix[j], name, strlen(opt.export_prefix[j])) == 0)
+           {
+             ok = TRUE;
+             break;
+@@ -1202,7 +1212,7 @@
+ 
+   /* Compute the amount of valid relocations */
+   DEBUG_PRINT_RELOCATION_DIRECTIVE_PROLOG();
+-  for (i = 0; i < sc.s_nreloc; i++)
++  for (i = 0; i < real_nrelocs; i++)
+   {
+     DEBUG_PRINT_RELOCATION_DIRECTIVE(i, relocs);
+     if (!VALID_RELOC(relocs[i]))
+@@ -1278,7 +1288,7 @@
+   free(data);
+ 
+   /* Output the relocations */
+-  for (i = 0; i < sc.s_nreloc; i++)
++  for (i = 0; i < real_nrelocs; i++)
+   {
+     if (VALID_RELOC(relocs[i]))
+       fwrite(&relocs[i].r_vaddr, 1, sizeof(relocs[0].r_vaddr), outf);
+
+diff -ur djlsr205-orig/src/misc.c djlsr205/src/misc.c
+--- djlsr205-orig/src/misc.c	2017-04-29 14:32:47.000000000 +0800
++++ djlsr205/src/misc.c	2017-04-29 14:32:57.000000000 +0800
+@@ -14,7 +14,11 @@
+ {
+   /* MS-DOS uses \, unix uses / */
+   if (argc > 2 && strcmp(argv[1], "mkdir") == 0)
++#if defined(__MINGW32__) || defined(__MINGW64__)
++    mkdir(argv[2]);
++#else
+     mkdir(argv[2], 0777);
++#endif
+ 
+   /* redirection and long command lines don't always
+      mix well under MS-DOS */
+diff -ur djlsr205-orig/src/stub/exe2coff.c djlsr205/src/stub/exe2coff.c
+--- djlsr205-orig/src/stub/exe2coff.c	2017-04-29 14:32:47.000000000 +0800
++++ djlsr205/src/stub/exe2coff.c	2017-04-29 14:32:57.000000000 +0800
+@@ -5,10 +5,12 @@
+ #include <fcntl.h>
+ #include <sys/stat.h>
+ #include <string.h>
+-#include <io.h>
+ #include <unistd.h>
+ #include <ctype.h>
+ 
++#if !defined(O_BINARY)
++#define O_BINARY 0
++#endif
+ 
+ static void
+ exe2aout(char *fname)
+
+--- a/src/makefile.def
++++ b/src/makefile.def
+@@ -47,11 +47,12 @@
+
+ # For building distributed (djgpp) libraries and programs
+
+-CROSS_GCC = i586-pc-msdosdjgpp-gcc -pipe
+-CROSS_AR = i586-pc-msdosdjgpp-ar
+-CROSS_AS = i586-pc-msdosdjgpp-as
+-CROSS_LD = i586-pc-msdosdjgpp-ld
+-CROSS_STRIP = i586-pc-msdosdjgpp-strip
++CROSS_PREFIX = i586-pc-msdosdjgpp-
++CROSS_GCC = $(CROSS_PREFIX)gcc -pipe
++CROSS_AR = $(CROSS_PREFIX)ar
++CROSS_AS = $(CROSS_PREFIX)as
++CROSS_LD = $(CROSS_PREFIX)ld
++CROSS_STRIP = $(CROSS_PREFIX)strip
+ CROSS_BISON = bison
+
+ # For building programs that *run* during the build (hostbin/*);
+diff --git a/src/debug/common/dbgcom.c b/src/debug/common/dbgcom.c
+index 77ca122b..1480f27c 100644
+--- a/src/debug/common/dbgcom.c
++++ b/src/debug/common/dbgcom.c
+@@ -1338,13 +1338,13 @@ int invalid_sel_addr(short sel, unsigned a, unsigned len, char for_write)
+     ("										\n\
+       movw  %2,%%ax								\n\
+       verr  %%ax								\n\
+-      jnz   .Ldoes_not_has_read_right						\n\
++      jnz   .Ldoes_not_has_read_right%=					\n\
+       movb  $1,%0								\n\
+-.Ldoes_not_has_read_right:							\n\
++.Ldoes_not_has_read_right%=:							\n\
+       verw  %%ax								\n\
+-      jnz   .Ldoes_not_has_write_right						\n\
++      jnz   .Ldoes_not_has_write_right%=					\n\
+       movb  $1,%1								\n\
+-.Ldoes_not_has_write_right: "
++.Ldoes_not_has_write_right%=: "
+      : "=qm" (read_allowed), "=qm" (write_allowed)
+      : "g" (sel)
+      );
+diff --git a/src/dxe/makefile b/src/dxe/makefile
+index cf715867..b856b9ed 100644
+--- a/src/dxe/makefile
++++ b/src/dxe/makefile
+@@ -13,7 +13,8 @@ all :: native \
+ 	$(BIN)/dxe3res.exe \
+ 	$E
+ 
+-native :: $(HOSTBIN)/dxegen.exe
++native :: $(HOSTBIN)/dxegen.exe \
++	$(HOSTBIN)/dxe3res.exe
+ 	$(NOP)
+ 
+ .o.h:
+@@ -36,5 +37,8 @@ CROSS_CC = $(word 1,$(CROSS_GCC))
+ $(HOSTBIN)/dxegen.exe : dxe3gen.c init1.h init2.h init3.h init4.h init5.h fini1.h fini2.h fini3.h fini4.h fini5.h
+ 	$(GCC) -DDXE_LD=\"$(CROSS_LD)\" -DDXE_CC=\"$(CROSS_CC)\" -DDXE_AR=\"$(CROSS_AR)\" -DDXE_AS=\"$(CROSS_AS)\" dxe3gen.c -o $@
+ 
++$(HOSTBIN)/dxe3res.exe: dxe3res.c
++	$(GCC) -O2 -Wall dxe3res.c -o $@
++
+ clean ::
+ 	@-$(MISC) rm *.o *.h $(HOSTBIN)/dxegen.exe
+diff --git a/src/makefile b/src/makefile
+index f62b70e4..e6f397fd 100644
+--- a/src/makefile
++++ b/src/makefile
+@@ -21,7 +21,7 @@ DIRS = \
+ 	../info		\
+ 	../lib
+ 
+-all : misc.exe config $(DIRS) makemake.exe subs ../lib/libg.a ../lib/libpc.a
++all : misc.exe config $(DIRS) makemake.exe subs
+ 
+ misc.exe : misc.c
+ 	gcc -O2 -Wall misc.c -o misc.exe
+diff --git a/src/makefile.inc b/src/makefile.inc
+index 664fdf9f..09c6f997 100644
+--- a/src/makefile.inc
++++ b/src/makefile.inc
+@@ -165,7 +165,7 @@ ifneq ($(MAKEFILE_LIB),1)
+ all :: makefile.oh
+ makefile.oh : makefile
+ 	@$(MISC) echo - building new response file
+-	@$(MISC) echo makefile.oh $(addprefix \&/,$(OBJS))
++	@echo "$(addprefix &/,$(OBJS))" > makefile.oh
+ endif
+ 
+ clean ::
+diff --git a/src/makefile.lib b/src/makefile.lib
+index 3a72a464..a3b5bd1e 100644
+--- a/src/makefile.lib
++++ b/src/makefile.lib
+@@ -23,6 +23,7 @@ $(LIB)/lib$(LIBNAME).a : $(OBJS) makefile.rf $(TOP)/../ident.c
+ ifeq ($(CROSS_BUILD),0)
+ 	$(CROSS_AR) q $(LIB)/lib$(LIBNAME).a @makefile.rf id_$(LIBNAME).o
+ else
++	dos2unix makefile.rf
+ 	$(CROSS_AR) q $(LIB)/lib$(LIBNAME).a `cat makefile.rf` id_$(LIBNAME).o
+ endif
+ 	$(CROSS_AR) s $(LIB)/lib$(LIBNAME).a
+diff --git a/src/stub/makefile b/src/stub/makefile
+index 83de0f1d..fef8ac8f 100644
+--- a/src/stub/makefile
++++ b/src/stub/makefile
+@@ -22,6 +22,7 @@ all :: native \
+ native :: \
+ 	$(HOSTBIN)/stubedit.exe \
+ 	$(HOSTBIN)/stubify.exe \
++	$(HOSTBIN)/exe2coff.exe \
+ 	$(INC)/stubinfo.h \
+ 	$E
+ 	$(NOP)
+@@ -63,10 +64,13 @@ $(BIN)/stubedit.exe : $(C) stubedit.o $(L)
+ 
+ 
+ $(HOSTBIN)/stubify.exe : stubify.c stub.h
+-	$(GCC) stubify.c -o $@
++	$(GCC) -O2 stubify.c -o $@
+ 
+ $(HOSTBIN)/stubedit.exe : stubedit.c $(INC)/stubinfo.h
+-	$(GCC) stubedit.c -o $@
++	$(GCC) -O2 stubedit.c -o $@
++
++$(HOSTBIN)/exe2coff.exe : exe2coff.c
++	$(GCC) -O2 $< -o $@
+ 
+ ./stub2inc.exe : stub2inc.c
+ 	$(GCC) stub2inc.c -o $@
+diff --git a/src/libc/crt0/crt1.c b/src/libc/crt0/crt1.c
+index 1bb6aa55..f0ba9919 100644
+--- a/src/libc/crt0/crt1.c
++++ b/src/libc/crt0/crt1.c
+@@ -208,7 +208,7 @@ setup_os_version(void)
+   _osminor = v & 0xff;
+ }
+
+-
++__attribute__((force_align_arg_pointer))
+ void
+ __crt1_startup(void)
+ {
+--- a/src/makefile.cfg
++++ b/src/makefile.cfg
+@@ -48,6 +48,7 @@
+ 	@./misc.exe echo - "-Wsign-compare" >>gcc.opt
+ 	@./misc.exe echo - "-nostdinc" >>gcc.opt
+ 	@./misc.exe echo - "$(IQUOTE)" >>gcc.opt
++	@./misc.exe echo - "-mpreferred-stack-boundary=4" >>gcc.opt
+ 
+ 
+ gcc-l.opt: makefile.cfg
+@@ -58,6 +59,7 @@
+ 	@./misc.exe echo - "-Wall" >>gcc-l.opt
+ 	@./misc.exe echo - "-nostdinc" >>gcc-l.opt
+ 	@./misc.exe echo - "$(IQUOTE)" >>gcc-l.opt
++	@./misc.exe echo - "-mpreferred-stack-boundary=4" >>gcc.opt
+ 
+ gpp.opt: gcc.opt
+ 	sed -f gpp.sed $< > $@
+--- a/src/libc/ansi/stdlib/nmalloc.c
++++ b/src/libc/ansi/stdlib/nmalloc.c
+@@ -1145,6 +1145,7 @@
+          return nmalloc(szneed);                      /* EXIT */
+       }
+       else if ((minit = nmalloc(szneed + XTRA))) {
++         m = MEMBLKp(minit);
+          /* alignment >= 2*ALIGN and power of 2 if here */
+          misalign = (ulong)minit % alignment;
+          DBGPRTM("  misalignment = %d", misalign);
+@@ -1154,9 +1155,10 @@
+          }
+          else {
+             /* two or more chunks to release */
+-            /* for now, just return NULL and have a leak */
+             DBGPRTM("  Complex case, release multiple chunks");
+             DBGEOLN;
++            nfree(PTR(split(&m, alignment - misalign)));
++            return nrealloc(PTR(m), size);
+          }
+       } /* alignment > ALIGN */
+    } /* valid parameters */
diff --git a/patch/patch-avarice-2.13.txt b/patch/patch-avarice-2.13.txt
new file mode 100644
index 00000000..53573b13
--- /dev/null
+++ b/patch/patch-avarice-2.13.txt
@@ -0,0 +1,35 @@
+Description: Fix FTBFS for GCC 5
+Author: Tobias Frost <tobi@debian.org>
+Bug: https://sourceforge.net/p/avarice/patches/34/
+Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777789
+Last-Update: 2015-05-18
+---
+This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
+--- a/src/pragma.h
++++ b/src/pragma.h
+@@ -28,9 +28,10 @@
+  */
+ #if defined(__GNUC__)
+ #  if __GNUC__ > 4
+-#      define PRAGMA_DIAG_PUSH       _Pragma(GCC diagnostic push)
+-#      define PRAGMA_DIAG_POP        _Pragma(GCC diagnostic pop)
+-#      define PRAGMA_DIAG_IGNORED(x) _Pragma(GCC diagnostic ignored x)
++#      define PRAGMA_DIAG_PUSH       _Pragma("GCC diagnostic push")
++#      define PRAGMA_DIAG_POP        _Pragma("GCC diagnostic pop")
++#      define PRAGMA_(x)             _Pragma(#x)
++#      define PRAGMA_DIAG_IGNORED(x) PRAGMA_(GCC diagnostic ignored x)
+ #  elif __GNUC__ == 4
+ #    if __GNUC_MINOR__ >= 6
+ #      define PRAGMA_DIAG_PUSH       _Pragma("GCC diagnostic push")
+
+--- a/src/jtagrw.cc	2018-06-27 21:49:14 UTC
++++ b/src/jtagrw.cc
+@@ -131,7 +131,7 @@ uchar *jtag1::jtagRead(unsigned long add
+ 	else
+ 	    numLocations = (numBytes + 1) / 2;
+ 	if (numLocations > 256)
+-	    return false;
++	    return NULL;
+ 
+ 	command[1] = whichSpace;
+ 	command[2] = numLocations - 1;
diff --git a/patch/patch-binutils-2.33.1-swap.txt b/patch/patch-binutils-2.33.1-swap.txt
new file mode 100644
index 00000000..497d4da3
--- /dev/null
+++ b/patch/patch-binutils-2.33.1-swap.txt
@@ -0,0 +1,46 @@
+--- swap.original.h	2020-02-04 01:52:21.137081500 +0100
++++ swap.h	2020-02-04 01:53:00.090081500 +0100
+@@ -23,18 +23,14 @@
+ #include "config.h"
+ #include <stdint.h>
+ 
+-#ifdef HAVE_BYTESWAP_H
+-#include <byteswap.h>
+-#else
+-
+ /* Provide our own versions of the byteswap functions.  */
+-inline uint16_t
++static inline uint16_t
+ bswap_16 (uint16_t v)
+ {
+   return ((v >> 8) & 0xff) | ((v & 0xff) << 8);
+ }
+ 
+-inline uint32_t
++static inline uint32_t
+ bswap_32 (uint32_t v)
+ {
+   return (  ((v & 0xff000000) >> 24)
+@@ -43,13 +39,13 @@
+ 	  | ((v & 0x000000ff) << 24));
+ }
+ 
+-inline uint64_t
++static inline uint64_t
+ bswap_identity_64 (uint64_t v)
+ {
+   return v;
+ }
+ 
+-inline uint64_t
++static inline uint64_t
+ bswap_64 (uint64_t v)
+ {
+   return (  ((v & 0xff00000000000000ULL) >> 56)
+@@ -61,6 +57,5 @@
+ 	  | ((v & 0x000000000000ff00ULL) << 40)
+ 	  | ((v & 0x00000000000000ffULL) << 56));
+ }
+-#endif /* !defined(HAVE_BYTESWAP_H) */
+ 
+ #endif /* !defined(_CTF_SWAP_H) */
diff --git a/patch/patch-binutils-2.34-swap.txt b/patch/patch-binutils-2.34-swap.txt
new file mode 100644
index 00000000..d69d9e86
--- /dev/null
+++ b/patch/patch-binutils-2.34-swap.txt
@@ -0,0 +1,20 @@
+--- swap.original.h	2020-02-04 01:56:36.717929400 +0100
++++ swap.h	2020-02-04 01:57:35.702827300 +0100
+@@ -23,10 +23,6 @@
+ #include "config.h"
+ #include <stdint.h>
+ 
+-#ifdef HAVE_BYTESWAP_H
+-#include <byteswap.h>
+-#else
+-
+ /* Provide our own versions of the byteswap functions.  */
+ static inline uint16_t
+ bswap_16 (uint16_t v)
+@@ -61,6 +57,5 @@
+ 	  | ((v & 0x000000000000ff00ULL) << 40)
+ 	  | ((v & 0x00000000000000ffULL) << 56));
+ }
+-#endif /* !defined(HAVE_BYTESWAP_H) */
+ 
+ #endif /* !defined(_CTF_SWAP_H) */
diff --git a/patch/patch-djlsr205.txt b/patch/patch-djlsr205.txt
deleted file mode 100644
index 14b375b9..00000000
--- a/patch/patch-djlsr205.txt
+++ /dev/null
@@ -1,160 +0,0 @@
-diff -ur djlsr205-orig/src/dxe/dxe3gen.c djlsr205/src/dxe/dxe3gen.c
---- djlsr205-orig/src/dxe/dxe3gen.c	2017-04-29 14:32:47.000000000 +0800
-+++ djlsr205/src/dxe/dxe3gen.c	2017-04-29 14:33:27.000000000 +0800
-@@ -193,7 +193,7 @@
- #include "../../include/sys/dxe.h"
- #include "../../include/coff.h"
- 
--#define VERSION  "1.0.3"
-+#define VERSION  "1.0.4"
- 
- #define TEMP_BASE    "dxe_tmp"       /* 7 chars, 1 char suffix */
- #define TEMP_O_FILE  TEMP_BASE".o"
-@@ -937,6 +937,7 @@
-   char *strings;
-   RELOC *relocs;
-   unsigned int i, j, errcount;
-+  ULONG32 real_nrelocs;
-   size_t hdrsize;
- 
-   /* Exported symbols table */
-@@ -985,9 +986,18 @@
-   strings[0] = 0;
- 
-   /* Read the relocation table */
--  relocs = (RELOC *)malloc(sc.s_nreloc * sizeof(RELOC));
-   fseek(inf, sc.s_relptr, SEEK_SET);
--  fread(relocs, RELSZ, sc.s_nreloc, inf);
-+  if (sc.s_flags & STYP_NRELOC_OVFL) {
-+    fread(&real_nrelocs, 4, 1, inf); /* read r_vaddr */
-+    fseek(inf, RELSZ - 4, SEEK_CUR); /* skip the rest */
-+    dh.nrelocs = --real_nrelocs; /* lose the '+1' */
-+    if (opt.verbose)
-+      printf("%s: real nrelocs: %lu\n", progname, (unsigned long)real_nrelocs);
-+  } else {
-+    real_nrelocs = dh.nrelocs;
-+  }
-+  relocs = (RELOC *)malloc(real_nrelocs * sizeof(RELOC));
-+  fread(relocs, RELSZ, real_nrelocs, inf);
- 
-   /* Close input file */
-   fclose(inf);
-@@ -1042,7 +1052,7 @@
-       int n_abs_relocs = 0, n_rel_relocs = 0;
- 
-       /* count the amount of relocations pointing to this symbol */
--      for (j = 0; j < sc.s_nreloc; j++)
-+      for (j = 0; j < real_nrelocs; j++)
-       {
-         if (relocs[j].r_symndx == i)
-         {
-@@ -1101,7 +1111,7 @@
- 
-       unres_size = newsize;
- 
--      for (j = 0; j < sc.s_nreloc; j++)
-+      for (j = 0; j < real_nrelocs; j++)
-       {
-         if (relocs[j].r_symndx == i)
-         {
-@@ -1145,7 +1155,7 @@
-         BOOL ok = FALSE;
-         for (j = 0; j < opt.num_excl; j++)
-         {
--          if (memcmp(opt.excl_prefix[j], name, strlen(opt.excl_prefix[j])) == 0)
-+          if (strncmp(opt.excl_prefix[j], name, strlen(opt.excl_prefix[j])) == 0)
-           {
-             ok = TRUE;
-             break;
-@@ -1160,7 +1170,7 @@
-         BOOL ok = FALSE;
-         for (j = 0; j < opt.num_prefix; j++)
-         {
--          if (memcmp(opt.export_prefix[j], name, strlen(opt.export_prefix[j])) == 0)
-+          if (strncmp(opt.export_prefix[j], name, strlen(opt.export_prefix[j])) == 0)
-           {
-             ok = TRUE;
-             break;
-@@ -1202,7 +1212,7 @@
- 
-   /* Compute the amount of valid relocations */
-   DEBUG_PRINT_RELOCATION_DIRECTIVE_PROLOG();
--  for (i = 0; i < sc.s_nreloc; i++)
-+  for (i = 0; i < real_nrelocs; i++)
-   {
-     DEBUG_PRINT_RELOCATION_DIRECTIVE(i, relocs);
-     if (!VALID_RELOC(relocs[i]))
-@@ -1278,7 +1288,7 @@
-   free(data);
- 
-   /* Output the relocations */
--  for (i = 0; i < sc.s_nreloc; i++)
-+  for (i = 0; i < real_nrelocs; i++)
-   {
-     if (VALID_RELOC(relocs[i]))
-       fwrite(&relocs[i].r_vaddr, 1, sizeof(relocs[0].r_vaddr), outf);
-diff -ur djlsr205-orig/src/makefile djlsr205/src/makefile
---- djlsr205-orig/src/makefile	2017-04-29 14:32:47.000000000 +0800
-+++ djlsr205/src/makefile	2017-04-29 14:32:57.000000000 +0800
-@@ -40,17 +40,18 @@
- 	$(MAKE) -C stub native
- 	$(MAKE) -C utils native
- 	$(MAKE) -C dxe native
--	$(MAKE) -C mkdoc
--	$(MAKE) -C libc
--	$(MAKE) -C debug
--	$(MAKE) -C djasm
--	$(MAKE) -C stub
--	$(MAKE) -C dxe
--	$(MAKE) -C libemu
--	$(MAKE) -C libm
--	$(MAKE) -C utils
--	$(MAKE) -C docs
--	-$(MAKE) -C ../zoneinfo/src
-+	$(MAKE) -C dxe -f makefile.dxe
-+	#$(MAKE) -C mkdoc
-+	#$(MAKE) -C libc
-+	#$(MAKE) -C debug
-+	#$(MAKE) -C djasm
-+	#$(MAKE) -C stub
-+	#$(MAKE) -C dxe
-+	#$(MAKE) -C libemu
-+	#$(MAKE) -C libm
-+	#$(MAKE) -C utils
-+	#$(MAKE) -C docs
-+	#-$(MAKE) -C ../zoneinfo/src
- 	$(MAKE) -f makempty
- 
- .PHONY : clean
-diff -ur djlsr205-orig/src/misc.c djlsr205/src/misc.c
---- djlsr205-orig/src/misc.c	2017-04-29 14:32:47.000000000 +0800
-+++ djlsr205/src/misc.c	2017-04-29 14:32:57.000000000 +0800
-@@ -14,7 +14,11 @@
- {
-   /* MS-DOS uses \, unix uses / */
-   if (argc > 2 && strcmp(argv[1], "mkdir") == 0)
-+#if defined(__MINGW32__) || defined(__MINGW64__)
-+    _mkdir(argv[2]);
-+#else
-     mkdir(argv[2], 0777);
-+#endif
- 
-   /* redirection and long command lines don't always
-      mix well under MS-DOS */
-diff -ur djlsr205-orig/src/stub/exe2coff.c djlsr205/src/stub/exe2coff.c
---- djlsr205-orig/src/stub/exe2coff.c	2017-04-29 14:32:47.000000000 +0800
-+++ djlsr205/src/stub/exe2coff.c	2017-04-29 14:32:57.000000000 +0800
-@@ -5,10 +5,12 @@
- #include <fcntl.h>
- #include <sys/stat.h>
- #include <string.h>
--#include <io.h>
- #include <unistd.h>
- #include <ctype.h>
- 
-+#if !defined(O_BINARY)
-+#define O_BINARY 0
-+#endif
- 
- static void
- exe2aout(char *fname)
diff --git a/patch/patch-gcc-ia16.txt b/patch/patch-gcc-ia16.txt
new file mode 100644
index 00000000..bcdb65ff
--- /dev/null
+++ b/patch/patch-gcc-ia16.txt
@@ -0,0 +1,15 @@
+diff --git a/gcc/opts.c b/gcc/opts.c
+index 0f9431a0b..91af66f98 100644
+--- a/gcc/opts.c
++++ b/gcc/opts.c
+@@ -2340,8 +2340,8 @@ set_debug_level (enum debug_info_type type, int extended, const char *arg,
+ #endif
+ 	    }
+ 
+-	  if (opts->x_write_symbols == NO_DEBUG)
+-	    warning_at (loc, 0, "target system does not support debug output");
++//	  if (opts->x_write_symbols == NO_DEBUG)
++//	    warning_at (loc, 0, "target system does not support debug output");
+ 	}
+     }
+   else
diff --git a/patch/patch-unpack-gcc-4.7.3.txt b/patch/patch-unpack-gcc-4.7.3.txt
new file mode 100644
index 00000000..99d089e4
--- /dev/null
+++ b/patch/patch-unpack-gcc-4.7.3.txt
@@ -0,0 +1,36 @@
+--- a/unpack-gcc.sh	2020-02-03 21:15:48.960456100 +0100
++++ b/unpack-gcc.sh	2020-02-03 21:16:16.080456100 +0100
+@@ -31,24 +31,6 @@
+     esac
+ done
+ 
+-archive=${1-gcc-$gcc_version.tar.bz2}
+-
+-if test "$tar_param" = "xf" ; then
+-    echo "Failed to detect how to decompress $archive"
+-    exit 1
+-fi
+-
+-rm -rf gnu
+-mkdir gnu
+-
+-rm -f $top/s-sources
+-( cd gnu && tar xf $top/$archive --use=`case $archive in *.gz|*.tgz) echo 'gzip';; *.bz2) echo 'bzip2';; *.xz) echo 'xz';; esac` && echo $archive >$top/s-sources )
+-
+-if ! [ -f s-sources ] ; then
+-    echo "Cannot unpack GCC sources"
+-    exit 1
+-fi
+-
+ orig_dir_name=`(cd gnu && ls -d gcc* | sed 1q; )`
+ 
+ base_ver=$(cat gnu/$orig_dir_name/gcc/BASE-VER)
+@@ -70,7 +52,7 @@
+     short_ver_2=${short_ver_2}-$datestamp
+ fi
+ 
+-dir_name=gcc-$short_ver
++dir_name=gcc-$gcc_version
+ 
+ if ! test "$dir_name" = "$orig_dir_name" ; then
+     mv -f gnu/$orig_dir_name gnu/$dir_name || exit 1
diff --git a/patch/patch-unpack-gcc-4.8.0.txt b/patch/patch-unpack-gcc-4.8.0.txt
new file mode 100644
index 00000000..491f5b9e
--- /dev/null
+++ b/patch/patch-unpack-gcc-4.8.0.txt
@@ -0,0 +1,41 @@
+--- a/unpack-gcc.sh	2020-02-03 21:17:50.083456100 +0100
++++ b/unpack-gcc.sh	2020-02-03 21:18:18.017456100 +0100
+@@ -31,29 +31,6 @@
+     esac
+ done
+ 
+-archive=${1-gcc-$gcc_version.tar.bz2}
+-
+-#
+-#  Detect required tar command line parameters for unpacking source archice
+-#
+-tar_param=xf`case $archive in *.gz|*.tgz) echo 'z';; *.bz2) echo 'j';; *.xz) echo 'J';; esac`
+-
+-if test "$tar_param" = "xf" ; then
+-    echo "Failed to detect how to decompress $archive"
+-    exit 1
+-fi
+-
+-rm -rf gnu
+-mkdir gnu
+-
+-rm -f $top/s-sources
+-( cd gnu && tar $tar_param $top/$archive && echo $archive >$top/s-sources )
+-
+-if ! [ -f s-sources ] ; then
+-    echo "Cannot unpack GCC sources"
+-    exit 1
+-fi
+-
+ orig_dir_name=`(cd gnu && ls -d gcc* | sed 1q; )`
+ 
+ base_ver=$(cat gnu/$orig_dir_name/gcc/BASE-VER)
+@@ -75,7 +52,7 @@
+     short_ver_2=${short_ver_2}-$datestamp
+ fi
+ 
+-dir_name=gcc-$short_ver
++dir_name=gcc-$gcc_version
+ 
+ if ! test "$dir_name" = "$orig_dir_name" ; then
+     mv -f gnu/$orig_dir_name gnu/$dir_name || exit 1
diff --git a/patch/patch-unpack-gcc.txt b/patch/patch-unpack-gcc.txt
new file mode 100644
index 00000000..9282a2b8
--- /dev/null
+++ b/patch/patch-unpack-gcc.txt
@@ -0,0 +1,44 @@
+--- a/unpack-gcc.sh
++++ b/unpack-gcc.sh
+@@ -33,32 +33,6 @@
+     esac
+ done
+ 
+-archive=${1-gcc-$gcc_version.tar.bz2}
+-
+-#
+-#  Detect required tar command line parameters for unpacking source archice
+-#
+-tar_param=`case $archive in *.gz|*.tgz) echo '--use=gzip' ;;
+-     *.bz2) echo '--use=bzip2' ;;
+-     *.xz) echo '--use=xz' ;;
+-esac`
+-
+-if test "$tar_param" = "" ; then
+-    echo "Failed to detect how to decompress $archive"
+-    exit 1
+-fi
+-
+-rm -rf gnu
+-mkdir gnu
+-
+-rm -f $top/s-sources
+-( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
+-
+-if ! [ -f s-sources ] ; then
+-    echo "Cannot unpack GCC sources"
+-    exit 1
+-fi
+-
+ orig_dir_name=`(cd gnu && ls -d gcc* | sed 1q; )`
+ 
+ base_ver=$(cat gnu/$orig_dir_name/gcc/BASE-VER)
+@@ -80,7 +54,7 @@
+     short_ver_2=${short_ver_2}-$datestamp
+ fi
+ 
+-dir_name=gcc-$short_ver
++dir_name=gcc-$gcc_version
+ 
+ if ! test "$dir_name" = "$orig_dir_name" ; then
+     mv -f gnu/$orig_dir_name gnu/$dir_name || exit 1
diff --git a/patch/watt32-djgpp-205/djgpp.err b/patch/watt32-djgpp-205/djgpp.err
new file mode 100644
index 00000000..22868933
--- /dev/null
+++ b/patch/watt32-djgpp-205/djgpp.err
@@ -0,0 +1,116 @@
+#ifndef __SYS_WERRNO_ERR
+#define __SYS_WERRNO_ERR
+
+/*
+ * THIS FILE WAS GENERATED BY %WATT_ROOT%\c:/dj_err.exe
+ * at Fri Jun 30 23:24:47 2023.
+ * DO NOT EDIT.
+ *
+ * Watt-32 errnos are after vendor's errnos (1 - 41)
+ */
+
+#ifndef __DJGPP__
+#error This file is only for use by "__DJGPP__"
+#endif
+
+#define ERRNO_VENDOR_VERSION  "2.05"
+
+#define EDOM              1
+#define ERANGE            2
+#define E2BIG             3
+#define EACCES            4
+#define EAGAIN            5
+#define EBADF             6
+#define EBUSY             7
+#define ECHILD            8
+#define EDEADLK           9
+#define EEXIST            10
+#define EFAULT            11
+#define EFBIG             12
+#define EINTR             13
+#define EINVAL            14
+#define EIO               15
+#define EISDIR            16
+#define EMFILE            17
+#define EMLINK            18
+#define ENAMETOOLONG      19
+#define ENFILE            20
+#define ENODEV            21
+#define ENOENT            22
+#define ENOEXEC           23
+#define ENOLCK            24
+#define ENOMEM            25
+#define ENOSPC            26
+#define ENOSYS            27
+#define ENOTDIR           28
+#define ENOTEMPTY         29
+#define ENOTTY            30
+#define ENXIO             31
+#define EPERM             32
+#define EPIPE             33
+#define EROFS             34
+#define ESPIPE            35
+#define ESRCH             36
+#define EXDEV             37
+#define ENMFILE           38
+#define ELOOP             39
+#define EOVERFLOW         40
+#define EILSEQ            41
+#define EWOULDBLOCK       42
+#define EINPROGRESS       43
+#define EALREADY          44
+#define ENOTSOCK          45
+#define EDESTADDRREQ      46
+#define EMSGSIZE          47
+#define EPROTOTYPE        48
+#define ENOPROTOOPT       49
+#define EPROTONOSUPPORT   50
+#define ESOCKTNOSUPPORT   51
+#define EOPNOTSUPP        52
+#define EPFNOSUPPORT      53
+#define EAFNOSUPPORT      54
+#define EADDRINUSE        55
+#define EADDRNOTAVAIL     56
+#define ENETDOWN          57
+#define ENETUNREACH       58
+#define ENETRESET         59
+#define ECONNABORTED      60
+#define ECONNRESET        61
+#define ENOBUFS           62
+#define EISCONN           63
+#define ENOTCONN          64
+#define ESHUTDOWN         65
+#define ETIMEDOUT         66
+#define ECONNREFUSED      67
+#define EHOSTDOWN         68
+#define EHOSTUNREACH      69
+#define ESTALE            70
+#define EREMOTE           71
+#define EBADRPC           72
+#define ERPCMISMATCH      73
+#define EPROGUNAVAIL      74
+#define EPROGMISMATCH     75
+#define EPROCUNAVAIL      76
+#define EINVFNC           77
+#define ENOPATH           78
+#define ECONTR            79
+#define EINVMEM           80
+#define EINVENV           81
+#define EINVFMT           82
+#define EINVACC           83
+#define EINVDAT           84
+#define EDEADLOCK         85
+#define ECURDIR           86
+#define ENOTSAM           87
+#define ETXTBSY           88
+#define ENOTBLK           89
+#define EUCLEAN           90
+#define ETOOMANYREFS      91
+#define EPROCLIM          92
+#define EUSERS            93
+#define EDQUOT            94
+#define EVDBAD            95
+#define ENORMTWD          96
+#define ECANCELED         97
+
+#endif /* __SYS_WERRNO_ERR */
diff --git a/patch/watt32-djgpp-205/syserr.c b/patch/watt32-djgpp-205/syserr.c
new file mode 100644
index 00000000..53218916
--- /dev/null
+++ b/patch/watt32-djgpp-205/syserr.c
@@ -0,0 +1,134 @@
+/*
+ * THIS FILE WAS GENERATED BY %WATT_ROOT%\c:/dj_err.exe
+ * at Fri Jun 30 23:24:49 2023.
+ * DO NOT EDIT.
+ *
+ * The Watt-32 'sys_errlist[]' that replaces vendor's 'sys_errlist[]'
+ */
+
+#ifndef __DJGPP__
+#error This file is only for use by "__DJGPP__"
+#endif
+
+char __syserr000[] = "Unknown error";
+char __syserr001[] = "Input to function out of range (EDOM)";
+char __syserr002[] = "Output of function out of range (ERANGE)";
+char __syserr003[] = "Argument list too long (E2BIG)";
+char __syserr004[] = "Permission denied (EACCES)";
+char __syserr005[] = "Resource temporarily unavailable (EAGAIN)";
+char __syserr006[] = "Bad file descriptor (EBADF)";
+char __syserr007[] = "Resource busy (EBUSY)";
+char __syserr008[] = "No child processes (ECHILD)";
+char __syserr009[] = "Resource deadlock avoided (EDEADLK)";
+char __syserr010[] = "File exists (EEXIST)";
+char __syserr011[] = "Bad address (EFAULT)";
+char __syserr012[] = "File too large (EFBIG)";
+char __syserr013[] = "Interrupted system call (EINTR)";
+char __syserr014[] = "Invalid argument (EINVAL)";
+char __syserr015[] = "Input or output error (EIO)";
+char __syserr016[] = "Is a directory (EISDIR)";
+char __syserr017[] = "Too many open files (EMFILE)";
+char __syserr018[] = "Too many links (EMLINK)";
+char __syserr019[] = "File name too long (ENAMETOOLONG)";
+char __syserr020[] = "Too many open files in system (ENFILE)";
+char __syserr021[] = "No such device (ENODEV)";
+char __syserr022[] = "No such file or directory (ENOENT)";
+char __syserr023[] = "Unable to execute file (ENOEXEC)";
+char __syserr024[] = "No locks available (ENOLCK)";
+char __syserr025[] = "Not enough memory (ENOMEM)";
+char __syserr026[] = "No space left on drive (ENOSPC)";
+char __syserr027[] = "Function not implemented (ENOSYS)";
+char __syserr028[] = "Not a directory (ENOTDIR)";
+char __syserr029[] = "Directory not empty (ENOTEMPTY)";
+char __syserr030[] = "Inappropriate I/O control operation (ENOTTY)";
+char __syserr031[] = "No such device or address (ENXIO)";
+char __syserr032[] = "Operation not permitted (EPERM)";
+char __syserr033[] = "Broken pipe (EPIPE)";
+char __syserr034[] = "Read-only file system (EROFS)";
+char __syserr035[] = "Invalid seek (ESPIPE)";
+char __syserr036[] = "No such process (ESRCH)";
+char __syserr037[] = "Improper link (EXDEV)";
+char __syserr038[] = "No more files (ENMFILE)";
+char __syserr039[] = "Too many levels of symbolic links (ELOOP)";
+char __syserr040[] = "Value too large (EOVERFLOW)";
+char __syserr041[] = "Invalid or incomplete multibyte or wide character (EILSEQ)";
+char __syserr042[] = "Operation would block (EWOULDBLOCK)";
+char __syserr043[] = "Operation now in progress (EINPROGRESS)";
+char __syserr044[] = "Operation already in progress (EALREADY)";
+char __syserr045[] = "Socket operation on non-socket (ENOTSOCK)";
+char __syserr046[] = "Destination address required (EDESTADDRREQ)";
+char __syserr047[] = "Message too long (EMSGSIZE)";
+char __syserr048[] = "Protocol wrong type for socket (EPROTOTYPE)";
+char __syserr049[] = "Protocol option not available (ENOPROTOOPT)";
+char __syserr050[] = "Protocol not supported (EPROTONOSUPPORT)";
+char __syserr051[] = "Socket type not supported (ESOCKTNOSUPPORT)";
+char __syserr052[] = "Operation not supported on socket (EOPNOTSUPP)";
+char __syserr053[] = "Protocol family not supported (EPFNOSUPPORT)";
+char __syserr054[] = "Address family not supported by protocol (EAFNOSUPPORT)";
+char __syserr055[] = "Address already in use (EADDRINUSE)";
+char __syserr056[] = "Can't assign requested address (EADDRNOTAVAIL)";
+char __syserr057[] = "Network is down (ENETDOWN)";
+char __syserr058[] = "Network is unreachable (ENETUNREACH)";
+char __syserr059[] = "Network dropped connection on reset (ENETRESET)";
+char __syserr060[] = "Software caused connection abort (ECONNABORTED)";
+char __syserr061[] = "Connection reset by peer (ECONNRESET)";
+char __syserr062[] = "No buffer space available (ENOBUFS)";
+char __syserr063[] = "Socket is already connected (EISCONN)";
+char __syserr064[] = "Socket is not connected (ENOTCONN)";
+char __syserr065[] = "Can't send after socket shutdown (ESHUTDOWN)";
+char __syserr066[] = "Connection timed out (ETIMEDOUT)";
+char __syserr067[] = "Connection refused (ECONNREFUSED)";
+char __syserr068[] = "Host is down (EHOSTDOWN)";
+char __syserr069[] = "No route to host (EHOSTUNREACH)";
+char __syserr070[] = "Stale NFS file handle (ESTALE)";
+char __syserr071[] = "Too many levels of remote in path (EREMOTE)";
+char __syserr072[] = "RPC struct is bad (EBADRPC)";
+char __syserr073[] = "RPC version wrong (ERPCMISMATCH)";
+char __syserr074[] = "RPC prog. not avail (EPROGUNAVAIL)";
+char __syserr075[] = "RPC Program version wrong (EPROGMISMATCH)";
+char __syserr076[] = "Bad procedure for program (EPROCUNAVAIL)";
+char __syserr077[] = "Invalid function number (EINVFNC)";
+char __syserr078[] = "Path not found (ENOPATH)";
+char __syserr079[] = "Memory area destroyed (ECONTR)";
+char __syserr080[] = "Invalid memory block address (EINVMEM)";
+char __syserr081[] = "Invalid environment (EINVENV)";
+char __syserr082[] = "Invalid format (EINVFMT)";
+char __syserr083[] = "Invalid access code (EINVACC)";
+char __syserr084[] = "Invalid data (EINVDAT)";
+char __syserr085[] = "Locking violation (EDEADLOCK)";
+char __syserr086[] = "Attempt to remove current directory (ECURDIR)";
+char __syserr087[] = "Not same device (ENOTSAM)";
+char __syserr088[] = "Text file busy (ETXTBSY)";
+char __syserr089[] = "Block device required (ENOTBLK)";
+char __syserr090[] = "Structure needs cleaning (EUCLEAN)";
+char __syserr091[] = "Too many references (ETOOMANYREFS)";
+char __syserr092[] = "Too many processes (EPROCLIM)";
+char __syserr093[] = "Too many users (EUSERS)";
+char __syserr094[] = "Disc quota exceeded (EDQUOT)";
+char __syserr095[] = "RVD related disk error (EVDBAD)";
+char __syserr096[] = "Out of remote working directory stuctures (ENORMTWD)";
+char __syserr097[] = "Operation canceled (ECANCELED)";
+
+char *SYS_ERRLIST[] = {
+    __syserr000,  __syserr001,  __syserr002,  __syserr003,  __syserr004, 
+    __syserr005,  __syserr006,  __syserr007,  __syserr008,  __syserr009, 
+    __syserr010,  __syserr011,  __syserr012,  __syserr013,  __syserr014, 
+    __syserr015,  __syserr016,  __syserr017,  __syserr018,  __syserr019, 
+    __syserr020,  __syserr021,  __syserr022,  __syserr023,  __syserr024, 
+    __syserr025,  __syserr026,  __syserr027,  __syserr028,  __syserr029, 
+    __syserr030,  __syserr031,  __syserr032,  __syserr033,  __syserr034, 
+    __syserr035,  __syserr036,  __syserr037,  __syserr038,  __syserr039, 
+    __syserr040,  __syserr041,  __syserr042,  __syserr043,  __syserr044, 
+    __syserr045,  __syserr046,  __syserr047,  __syserr048,  __syserr049, 
+    __syserr050,  __syserr051,  __syserr052,  __syserr053,  __syserr054, 
+    __syserr055,  __syserr056,  __syserr057,  __syserr058,  __syserr059, 
+    __syserr060,  __syserr061,  __syserr062,  __syserr063,  __syserr064, 
+    __syserr065,  __syserr066,  __syserr067,  __syserr068,  __syserr069, 
+    __syserr070,  __syserr071,  __syserr072,  __syserr073,  __syserr074, 
+    __syserr075,  __syserr076,  __syserr077,  __syserr078,  __syserr079, 
+    __syserr080,  __syserr081,  __syserr082,  __syserr083,  __syserr084, 
+    __syserr085,  __syserr086,  __syserr087,  __syserr088,  __syserr089, 
+    __syserr090,  __syserr091,  __syserr092,  __syserr093,  __syserr094, 
+    __syserr095,  __syserr096,  __syserr097, 
+};
+
diff --git a/patch/watt32-djgpp-cvs/djgpp.err b/patch/watt32-djgpp-cvs/djgpp.err
new file mode 100644
index 00000000..22868933
--- /dev/null
+++ b/patch/watt32-djgpp-cvs/djgpp.err
@@ -0,0 +1,116 @@
+#ifndef __SYS_WERRNO_ERR
+#define __SYS_WERRNO_ERR
+
+/*
+ * THIS FILE WAS GENERATED BY %WATT_ROOT%\c:/dj_err.exe
+ * at Fri Jun 30 23:24:47 2023.
+ * DO NOT EDIT.
+ *
+ * Watt-32 errnos are after vendor's errnos (1 - 41)
+ */
+
+#ifndef __DJGPP__
+#error This file is only for use by "__DJGPP__"
+#endif
+
+#define ERRNO_VENDOR_VERSION  "2.05"
+
+#define EDOM              1
+#define ERANGE            2
+#define E2BIG             3
+#define EACCES            4
+#define EAGAIN            5
+#define EBADF             6
+#define EBUSY             7
+#define ECHILD            8
+#define EDEADLK           9
+#define EEXIST            10
+#define EFAULT            11
+#define EFBIG             12
+#define EINTR             13
+#define EINVAL            14
+#define EIO               15
+#define EISDIR            16
+#define EMFILE            17
+#define EMLINK            18
+#define ENAMETOOLONG      19
+#define ENFILE            20
+#define ENODEV            21
+#define ENOENT            22
+#define ENOEXEC           23
+#define ENOLCK            24
+#define ENOMEM            25
+#define ENOSPC            26
+#define ENOSYS            27
+#define ENOTDIR           28
+#define ENOTEMPTY         29
+#define ENOTTY            30
+#define ENXIO             31
+#define EPERM             32
+#define EPIPE             33
+#define EROFS             34
+#define ESPIPE            35
+#define ESRCH             36
+#define EXDEV             37
+#define ENMFILE           38
+#define ELOOP             39
+#define EOVERFLOW         40
+#define EILSEQ            41
+#define EWOULDBLOCK       42
+#define EINPROGRESS       43
+#define EALREADY          44
+#define ENOTSOCK          45
+#define EDESTADDRREQ      46
+#define EMSGSIZE          47
+#define EPROTOTYPE        48
+#define ENOPROTOOPT       49
+#define EPROTONOSUPPORT   50
+#define ESOCKTNOSUPPORT   51
+#define EOPNOTSUPP        52
+#define EPFNOSUPPORT      53
+#define EAFNOSUPPORT      54
+#define EADDRINUSE        55
+#define EADDRNOTAVAIL     56
+#define ENETDOWN          57
+#define ENETUNREACH       58
+#define ENETRESET         59
+#define ECONNABORTED      60
+#define ECONNRESET        61
+#define ENOBUFS           62
+#define EISCONN           63
+#define ENOTCONN          64
+#define ESHUTDOWN         65
+#define ETIMEDOUT         66
+#define ECONNREFUSED      67
+#define EHOSTDOWN         68
+#define EHOSTUNREACH      69
+#define ESTALE            70
+#define EREMOTE           71
+#define EBADRPC           72
+#define ERPCMISMATCH      73
+#define EPROGUNAVAIL      74
+#define EPROGMISMATCH     75
+#define EPROCUNAVAIL      76
+#define EINVFNC           77
+#define ENOPATH           78
+#define ECONTR            79
+#define EINVMEM           80
+#define EINVENV           81
+#define EINVFMT           82
+#define EINVACC           83
+#define EINVDAT           84
+#define EDEADLOCK         85
+#define ECURDIR           86
+#define ENOTSAM           87
+#define ETXTBSY           88
+#define ENOTBLK           89
+#define EUCLEAN           90
+#define ETOOMANYREFS      91
+#define EPROCLIM          92
+#define EUSERS            93
+#define EDQUOT            94
+#define EVDBAD            95
+#define ENORMTWD          96
+#define ECANCELED         97
+
+#endif /* __SYS_WERRNO_ERR */
diff --git a/patch/watt32-djgpp-cvs/syserr.c b/patch/watt32-djgpp-cvs/syserr.c
new file mode 100644
index 00000000..53218916
--- /dev/null
+++ b/patch/watt32-djgpp-cvs/syserr.c
@@ -0,0 +1,134 @@
+/*
+ * THIS FILE WAS GENERATED BY %WATT_ROOT%\c:/dj_err.exe
+ * at Fri Jun 30 23:24:49 2023.
+ * DO NOT EDIT.
+ *
+ * The Watt-32 'sys_errlist[]' that replaces vendor's 'sys_errlist[]'
+ */
+
+#ifndef __DJGPP__
+#error This file is only for use by "__DJGPP__"
+#endif
+
+char __syserr000[] = "Unknown error";
+char __syserr001[] = "Input to function out of range (EDOM)";
+char __syserr002[] = "Output of function out of range (ERANGE)";
+char __syserr003[] = "Argument list too long (E2BIG)";
+char __syserr004[] = "Permission denied (EACCES)";
+char __syserr005[] = "Resource temporarily unavailable (EAGAIN)";
+char __syserr006[] = "Bad file descriptor (EBADF)";
+char __syserr007[] = "Resource busy (EBUSY)";
+char __syserr008[] = "No child processes (ECHILD)";
+char __syserr009[] = "Resource deadlock avoided (EDEADLK)";
+char __syserr010[] = "File exists (EEXIST)";
+char __syserr011[] = "Bad address (EFAULT)";
+char __syserr012[] = "File too large (EFBIG)";
+char __syserr013[] = "Interrupted system call (EINTR)";
+char __syserr014[] = "Invalid argument (EINVAL)";
+char __syserr015[] = "Input or output error (EIO)";
+char __syserr016[] = "Is a directory (EISDIR)";
+char __syserr017[] = "Too many open files (EMFILE)";
+char __syserr018[] = "Too many links (EMLINK)";
+char __syserr019[] = "File name too long (ENAMETOOLONG)";
+char __syserr020[] = "Too many open files in system (ENFILE)";
+char __syserr021[] = "No such device (ENODEV)";
+char __syserr022[] = "No such file or directory (ENOENT)";
+char __syserr023[] = "Unable to execute file (ENOEXEC)";
+char __syserr024[] = "No locks available (ENOLCK)";
+char __syserr025[] = "Not enough memory (ENOMEM)";
+char __syserr026[] = "No space left on drive (ENOSPC)";
+char __syserr027[] = "Function not implemented (ENOSYS)";
+char __syserr028[] = "Not a directory (ENOTDIR)";
+char __syserr029[] = "Directory not empty (ENOTEMPTY)";
+char __syserr030[] = "Inappropriate I/O control operation (ENOTTY)";
+char __syserr031[] = "No such device or address (ENXIO)";
+char __syserr032[] = "Operation not permitted (EPERM)";
+char __syserr033[] = "Broken pipe (EPIPE)";
+char __syserr034[] = "Read-only file system (EROFS)";
+char __syserr035[] = "Invalid seek (ESPIPE)";
+char __syserr036[] = "No such process (ESRCH)";
+char __syserr037[] = "Improper link (EXDEV)";
+char __syserr038[] = "No more files (ENMFILE)";
+char __syserr039[] = "Too many levels of symbolic links (ELOOP)";
+char __syserr040[] = "Value too large (EOVERFLOW)";
+char __syserr041[] = "Invalid or incomplete multibyte or wide character (EILSEQ)";
+char __syserr042[] = "Operation would block (EWOULDBLOCK)";
+char __syserr043[] = "Operation now in progress (EINPROGRESS)";
+char __syserr044[] = "Operation already in progress (EALREADY)";
+char __syserr045[] = "Socket operation on non-socket (ENOTSOCK)";
+char __syserr046[] = "Destination address required (EDESTADDRREQ)";
+char __syserr047[] = "Message too long (EMSGSIZE)";
+char __syserr048[] = "Protocol wrong type for socket (EPROTOTYPE)";
+char __syserr049[] = "Protocol option not available (ENOPROTOOPT)";
+char __syserr050[] = "Protocol not supported (EPROTONOSUPPORT)";
+char __syserr051[] = "Socket type not supported (ESOCKTNOSUPPORT)";
+char __syserr052[] = "Operation not supported on socket (EOPNOTSUPP)";
+char __syserr053[] = "Protocol family not supported (EPFNOSUPPORT)";
+char __syserr054[] = "Address family not supported by protocol (EAFNOSUPPORT)";
+char __syserr055[] = "Address already in use (EADDRINUSE)";
+char __syserr056[] = "Can't assign requested address (EADDRNOTAVAIL)";
+char __syserr057[] = "Network is down (ENETDOWN)";
+char __syserr058[] = "Network is unreachable (ENETUNREACH)";
+char __syserr059[] = "Network dropped connection on reset (ENETRESET)";
+char __syserr060[] = "Software caused connection abort (ECONNABORTED)";
+char __syserr061[] = "Connection reset by peer (ECONNRESET)";
+char __syserr062[] = "No buffer space available (ENOBUFS)";
+char __syserr063[] = "Socket is already connected (EISCONN)";
+char __syserr064[] = "Socket is not connected (ENOTCONN)";
+char __syserr065[] = "Can't send after socket shutdown (ESHUTDOWN)";
+char __syserr066[] = "Connection timed out (ETIMEDOUT)";
+char __syserr067[] = "Connection refused (ECONNREFUSED)";
+char __syserr068[] = "Host is down (EHOSTDOWN)";
+char __syserr069[] = "No route to host (EHOSTUNREACH)";
+char __syserr070[] = "Stale NFS file handle (ESTALE)";
+char __syserr071[] = "Too many levels of remote in path (EREMOTE)";
+char __syserr072[] = "RPC struct is bad (EBADRPC)";
+char __syserr073[] = "RPC version wrong (ERPCMISMATCH)";
+char __syserr074[] = "RPC prog. not avail (EPROGUNAVAIL)";
+char __syserr075[] = "RPC Program version wrong (EPROGMISMATCH)";
+char __syserr076[] = "Bad procedure for program (EPROCUNAVAIL)";
+char __syserr077[] = "Invalid function number (EINVFNC)";
+char __syserr078[] = "Path not found (ENOPATH)";
+char __syserr079[] = "Memory area destroyed (ECONTR)";
+char __syserr080[] = "Invalid memory block address (EINVMEM)";
+char __syserr081[] = "Invalid environment (EINVENV)";
+char __syserr082[] = "Invalid format (EINVFMT)";
+char __syserr083[] = "Invalid access code (EINVACC)";
+char __syserr084[] = "Invalid data (EINVDAT)";
+char __syserr085[] = "Locking violation (EDEADLOCK)";
+char __syserr086[] = "Attempt to remove current directory (ECURDIR)";
+char __syserr087[] = "Not same device (ENOTSAM)";
+char __syserr088[] = "Text file busy (ETXTBSY)";
+char __syserr089[] = "Block device required (ENOTBLK)";
+char __syserr090[] = "Structure needs cleaning (EUCLEAN)";
+char __syserr091[] = "Too many references (ETOOMANYREFS)";
+char __syserr092[] = "Too many processes (EPROCLIM)";
+char __syserr093[] = "Too many users (EUSERS)";
+char __syserr094[] = "Disc quota exceeded (EDQUOT)";
+char __syserr095[] = "RVD related disk error (EVDBAD)";
+char __syserr096[] = "Out of remote working directory stuctures (ENORMTWD)";
+char __syserr097[] = "Operation canceled (ECANCELED)";
+
+char *SYS_ERRLIST[] = {
+    __syserr000,  __syserr001,  __syserr002,  __syserr003,  __syserr004, 
+    __syserr005,  __syserr006,  __syserr007,  __syserr008,  __syserr009, 
+    __syserr010,  __syserr011,  __syserr012,  __syserr013,  __syserr014, 
+    __syserr015,  __syserr016,  __syserr017,  __syserr018,  __syserr019, 
+    __syserr020,  __syserr021,  __syserr022,  __syserr023,  __syserr024, 
+    __syserr025,  __syserr026,  __syserr027,  __syserr028,  __syserr029, 
+    __syserr030,  __syserr031,  __syserr032,  __syserr033,  __syserr034, 
+    __syserr035,  __syserr036,  __syserr037,  __syserr038,  __syserr039, 
+    __syserr040,  __syserr041,  __syserr042,  __syserr043,  __syserr044, 
+    __syserr045,  __syserr046,  __syserr047,  __syserr048,  __syserr049, 
+    __syserr050,  __syserr051,  __syserr052,  __syserr053,  __syserr054, 
+    __syserr055,  __syserr056,  __syserr057,  __syserr058,  __syserr059, 
+    __syserr060,  __syserr061,  __syserr062,  __syserr063,  __syserr064, 
+    __syserr065,  __syserr066,  __syserr067,  __syserr068,  __syserr069, 
+    __syserr070,  __syserr071,  __syserr072,  __syserr073,  __syserr074, 
+    __syserr075,  __syserr076,  __syserr077,  __syserr078,  __syserr079, 
+    __syserr080,  __syserr081,  __syserr082,  __syserr083,  __syserr084, 
+    __syserr085,  __syserr086,  __syserr087,  __syserr088,  __syserr089, 
+    __syserr090,  __syserr091,  __syserr092,  __syserr093,  __syserr094, 
+    __syserr095,  __syserr096,  __syserr097, 
+};
+
diff --git a/patch/watt32.patch b/patch/watt32.patch
new file mode 100644
index 00000000..9f4210ed
--- /dev/null
+++ b/patch/watt32.patch
@@ -0,0 +1,13 @@
+diff --git a/src/makefile.all b/src/makefile.all
+index d158664..f840962 100644
+--- a/src/makefile.all
++++ b/src/makefile.all
+@@ -252,7 +252,7 @@ PKT_STUB = pkt_stub.h
+ prefix = /dev/env/DJDIR/net/watt
+ 
+ CFLAGS = -O3 -g -I. -I../inc -DWATT32_BUILD -W -Wall -Wno-strict-aliasing \
+-         -march=i386 -mtune=i586
++         -march=i386 -mtune=i586 $(CFLAGS_FOR_TARGET)
+ 
+ STAT_LIB = ../lib/libwatt.a
+ OBJDIR   = build/djgpp
diff --git a/script/4.7.3 b/script/4.7.3
deleted file mode 100755
index 86a5cb57..00000000
--- a/script/4.7.3
+++ /dev/null
@@ -1,382 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=4.7.3
-GCC_VERSION_SHORT=4.73
-GMP_VERSION=5.0.5
-MPFR_VERSION=3.1.1
-MPC_VERSION=1.0
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-CFLAGS="-O2 -g $CFLAGS -std=gnu90"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://www.multiprecision.org/mpc/download/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.7.3 unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive --use=`case $archive in *.gz|*.tgz) echo 'gzip';; *.bz2) echo 'bzip2';; *.xz) echo 'xz';; esac` && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\([^-]*\)\([^&]*\)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-${GMP_VERSION}/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp-build=$BUILDDIR/gmp-${GMP_VERSION} --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/4.8.4 b/script/4.8.4
deleted file mode 100755
index dd7bdd8c..00000000
--- a/script/4.8.4
+++ /dev/null
@@ -1,383 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=4.8.4
-GCC_VERSION_SHORT=4.84
-GMP_VERSION=6.0.0a
-MPFR_VERSION=3.1.2
-MPC_VERSION=1.0.2
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-CFLAGS="-O2 -g $CFLAGS -std=gnu90"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/4.8.5 b/script/4.8.5
deleted file mode 100755
index ce28ab21..00000000
--- a/script/4.8.5
+++ /dev/null
@@ -1,390 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=4.8.5
-GCC_VERSION_SHORT=4.85
-GMP_VERSION=6.0.0a
-MPFR_VERSION=3.1.3
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-CFLAGS="-O2 -g $CFLAGS -std=gnu90"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# djcross-gcc-X.XX-tar.* maybe moved from /djgpp/rpms/ to /djgpp/deleted/rpms/ directory.
-OLD_DJCROSS_GCC_ARCHIVE=${DJCROSS_GCC_ARCHIVE/rpms\//deleted\/rpms\/}
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $OLD_DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      DL_CMD="wget -U firefox $ARCHIVE"
-    else
-      DL_CMD="curl -f $ARCHIVE -L -o $FILE"
-    fi
-    echo "Command : $DL_CMD"
-    if ! eval $DL_CMD; then
-      if [ "$ARCHIVE" == "$DJCROSS_GCC_ARCHIVE" ]; then
-        echo "$FILE maybe moved to deleted/ directory."
-      else
-        rm $FILE
-        echo "Download $ARCHIVE failed."
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/4.9.2 b/script/4.9.2
deleted file mode 100755
index fbb43b99..00000000
--- a/script/4.9.2
+++ /dev/null
@@ -1,383 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=4.9.2
-GCC_VERSION_SHORT=4.92
-GMP_VERSION=6.0.0a
-MPFR_VERSION=3.1.2
-MPC_VERSION=1.0.1
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-CFLAGS="-O2 -g $CFLAGS -std=gnu90"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/4.9.3 b/script/4.9.3
deleted file mode 100755
index a4071d65..00000000
--- a/script/4.9.3
+++ /dev/null
@@ -1,383 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=4.9.3
-GCC_VERSION_SHORT=4.93
-GMP_VERSION=6.0.0a
-MPFR_VERSION=3.1.3
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-CFLAGS="-O2 -g $CFLAGS -std=gnu90"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/4.9.4 b/script/4.9.4
deleted file mode 100755
index 49c42855..00000000
--- a/script/4.9.4
+++ /dev/null
@@ -1,390 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=226
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=4.9.4
-GCC_VERSION_SHORT=4.94
-GMP_VERSION=6.1.1
-MPFR_VERSION=3.1.4
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-CFLAGS="-O2 -g $CFLAGS -std=gnu90"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}sr3.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# djcross-gcc-X.XX-tar.* maybe moved from /djgpp/rpms/ to /djgpp/deleted/rpms/ directory.
-OLD_DJCROSS_GCC_ARCHIVE=${DJCROSS_GCC_ARCHIVE/rpms\//deleted\/rpms\/}
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $OLD_DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      DL_CMD="wget -U firefox $ARCHIVE"
-    else
-      DL_CMD="curl -f $ARCHIVE -L -o $FILE"
-    fi
-    echo "Command : $DL_CMD"
-    if ! eval $DL_CMD; then
-      if [ "$ARCHIVE" == "$DJCROSS_GCC_ARCHIVE" ]; then
-        echo "$FILE maybe moved to deleted/ directory."
-      else
-        rm $FILE
-        echo "Download $ARCHIVE failed."
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}sr3
-cd bnu${BINUTILS_VERSION}sr3
-unzip ../../download/bnu${BINUTILS_VERSION}sr3.zip || exit 1
-cd gnu/binutils-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/5.1.0 b/script/5.1.0
deleted file mode 100755
index 1c2cef3d..00000000
--- a/script/5.1.0
+++ /dev/null
@@ -1,384 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=5.1.0
-GCC_VERSION_SHORT=5.10
-GMP_VERSION=6.0.0a
-MPFR_VERSION=3.1.2
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/5.2.0 b/script/5.2.0
deleted file mode 100755
index 86a9e86f..00000000
--- a/script/5.2.0
+++ /dev/null
@@ -1,384 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=5.2.0
-GCC_VERSION_SHORT=5.20
-GMP_VERSION=6.0.0a
-MPFR_VERSION=3.1.2
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/5.3.0 b/script/5.3.0
deleted file mode 100755
index d360d250..00000000
--- a/script/5.3.0
+++ /dev/null
@@ -1,384 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=5.3.0
-GCC_VERSION_SHORT=5.30
-GMP_VERSION=6.1.0
-MPFR_VERSION=3.1.3
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/5.4.0 b/script/5.4.0
deleted file mode 100755
index 84983394..00000000
--- a/script/5.4.0
+++ /dev/null
@@ -1,384 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=226
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=5.4.0
-GCC_VERSION_SHORT=5.40
-GMP_VERSION=6.1.0
-MPFR_VERSION=3.1.4
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}sr3.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}sr3
-cd bnu${BINUTILS_VERSION}sr3
-unzip ../../download/bnu${BINUTILS_VERSION}sr3.zip || exit 1
-cd gnu/binutils-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/5.5.0 b/script/5.5.0
deleted file mode 100755
index d4ada305..00000000
--- a/script/5.5.0
+++ /dev/null
@@ -1,391 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=226
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=5.5.0
-GCC_VERSION_SHORT=5.50
-GMP_VERSION=6.1.2
-MPFR_VERSION=3.1.6
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.1
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}sr3.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.bz2"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# djcross-gcc-X.XX-tar.* maybe moved from /djgpp/rpms/ to /djgpp/deleted/rpms/ directory.
-OLD_DJCROSS_GCC_ARCHIVE=${DJCROSS_GCC_ARCHIVE/rpms\//deleted\/rpms\/}
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $OLD_DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      DL_CMD="wget -U firefox $ARCHIVE"
-    else
-      DL_CMD="curl -f $ARCHIVE -L -o $FILE"
-    fi
-    echo "Command : $DL_CMD"
-    if ! eval $DL_CMD; then
-      if [ "$ARCHIVE" == "$DJCROSS_GCC_ARCHIVE" ]; then
-        echo "$FILE maybe moved to deleted/ directory."
-      else
-        rm $FILE
-        echo "Download $ARCHIVE failed."
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}sr3
-cd bnu${BINUTILS_VERSION}sr3
-unzip ../../download/bnu${BINUTILS_VERSION}sr3.zip || exit 1
-cd gnu/binutils-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xjf ../../download/automake-${AUTOMAKE_VERSION}.tar.bz2 || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xJf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1J\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.xz || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/6.1.0 b/script/6.1.0
deleted file mode 100755
index 4e4d7fe0..00000000
--- a/script/6.1.0
+++ /dev/null
@@ -1,384 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=224
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=6.1.0
-GCC_VERSION_SHORT=6.10
-GMP_VERSION=6.1.0
-MPFR_VERSION=3.1.4
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.6
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/bnutl-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xJf ../../download/automake-${AUTOMAKE_VERSION}.tar.xz || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/6.2.0 b/script/6.2.0
deleted file mode 100755
index f70ca3c4..00000000
--- a/script/6.2.0
+++ /dev/null
@@ -1,384 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=226
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=6.2.0
-GCC_VERSION_SHORT=6.20
-GMP_VERSION=6.1.1
-MPFR_VERSION=3.1.4
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.6
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}sr3.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}sr3
-cd bnu${BINUTILS_VERSION}sr3
-unzip ../../download/bnu${BINUTILS_VERSION}sr3.zip || exit 1
-cd gnu/binutils-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xJf ../../download/automake-${AUTOMAKE_VERSION}.tar.xz || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/6.3.0 b/script/6.3.0
deleted file mode 100755
index 6b250304..00000000
--- a/script/6.3.0
+++ /dev/null
@@ -1,387 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=227
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=6.3.0
-GCC_VERSION_SHORT=6.30
-GMP_VERSION=6.1.2
-MPFR_VERSION=3.1.4
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.6
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/binutils-* || exit
-
-# patch for binutils 2.27
-patch bfd/init.c ../../../../patch/patch-bnu27-bfd-init.txt || exit 1
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xJf ../../download/automake-${AUTOMAKE_VERSION}.tar.xz || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/6.4.0 b/script/6.4.0
deleted file mode 100755
index 6d442573..00000000
--- a/script/6.4.0
+++ /dev/null
@@ -1,395 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=227
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=6.4.0
-GCC_VERSION_SHORT=6.40
-GMP_VERSION=6.1.2
-MPFR_VERSION=3.1.4
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.6
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# djcross-gcc-X.XX-tar.* maybe moved from /djgpp/rpms/ to /djgpp/deleted/rpms/ directory.
-OLD_DJCROSS_GCC_ARCHIVE=${DJCROSS_GCC_ARCHIVE/rpms\//deleted\/rpms\/}
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $OLD_DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      DL_CMD="wget -U firefox $ARCHIVE"
-    else
-      DL_CMD="curl -f $ARCHIVE -L -o $FILE"
-    fi
-    echo "Command : $DL_CMD"
-    if ! eval $DL_CMD; then
-      if [ "$ARCHIVE" == "$DJCROSS_GCC_ARCHIVE" ]; then
-        echo "$FILE maybe moved to deleted/ directory."
-      else
-        rm $FILE
-        echo "Download $ARCHIVE failed."
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/binutils-* || exit
-
-# patch for binutils 2.27
-patch bfd/init.c ../../../../patch/patch-bnu27-bfd-init.txt || exit 1
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xJf ../../download/automake-${AUTOMAKE_VERSION}.tar.xz || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xJf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1J\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.xz || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --enable-libstdcxx-filesystem-ts \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/7.1.0 b/script/7.1.0
deleted file mode 100755
index 3134a572..00000000
--- a/script/7.1.0
+++ /dev/null
@@ -1,387 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=227
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=7.1.0
-GCC_VERSION_SHORT=7.10
-GMP_VERSION=6.1.2
-MPFR_VERSION=3.1.5
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.6
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.bz2"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.bz2"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      if ! wget -U firefox $ARCHIVE; then
-        rm $FILE
-        exit 1
-      fi
-    else
-      if ! curl -f $ARCHIVE -L -o $FILE; then
-        rm $FILE
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/binutils-* || exit
-
-# patch for binutils 2.27
-patch bfd/init.c ../../../../patch/patch-bnu27-bfd-init.txt || exit 1
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xjf ../../download/autoconf-${AUTOCONF_VERSION}.tar.bz2 || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xJf ../../download/automake-${AUTOMAKE_VERSION}.tar.xz || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xjf ../../download/gmp-${GMP_VERSION}.tar.bz2 || exit 1
-tar xjf ../../download/mpfr-${MPFR_VERSION}.tar.bz2 || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xjf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1j\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.bz2 || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/7.2.0 b/script/7.2.0
deleted file mode 100755
index 63ea9817..00000000
--- a/script/7.2.0
+++ /dev/null
@@ -1,392 +0,0 @@
-#!/usr/bin/env bash
-
-unset CDPATH
-
-# target directory
-DJGPP_PREFIX=${DJGPP_PREFIX-/usr/local/djgpp}
-
-# enabled languages
-#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,f95,objc,obj-c++}
-ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++}
-
-#DJGPP_DOWNLOAD_BASE="ftp://ftp.delorie.com/pub"
-DJGPP_DOWNLOAD_BASE="http://www.delorie.com/pub"
-
-# source tarball versions
-BINUTILS_VERSION=229
-DJCRX_VERSION=205
-DJLSR_VERSION=205
-DJDEV_VERSION=205
-
-GCC_VERSION=7.2.0
-GCC_VERSION_SHORT=7.20
-GMP_VERSION=6.1.2
-MPFR_VERSION=3.1.5
-MPC_VERSION=1.0.3
-AUTOCONF_VERSION=2.64
-AUTOMAKE_VERSION=1.11.6
-
-CC=gcc
-CXX=g++
-
-# use gmake under FreeBSD
-if [ `uname` = "FreeBSD" ]; then
-  MAKE=gmake
-  CC=clang
-  CXX=clang++
-else
-  MAKE=make
-fi
-#CFLAGS="-O2 -g $CFLAGS -std=gnu11"
-
-export CC CXX CFLAGS MAKE
-
-# tarball location
-BINUTILS_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/deleted/v2gnu/bnu${BINUTILS_VERSION}s.zip"
-DJCRX_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djcrx${DJCRX_VERSION}.zip"
-DJLSR_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djlsr${DJLSR_VERSION}.zip"
-DJDEV_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/current/v2/djdev${DJDEV_VERSION}.zip"
-
-DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.xz"
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.xz"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.xz"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
-AUTOCONF_ARCHIVE="http://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.xz"
-AUTOMAKE_ARCHIVE="http://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.xz"
-
-# check required programs
-REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch"
-
-# MinGW doesn't have curl, so we use wget.
-if uname|grep "^MINGW32" > /dev/null; then
-  USE_WGET=1
-fi
-
-# use curl or wget?
-if [ ! -z $USE_WGET ]; then
-  REQ_PROG_LIST+=" wget"
-else
-  REQ_PROG_LIST+=" curl"
-fi
-
-for REQ_PROG in $REQ_PROG_LIST; do
-  if ! which $REQ_PROG > /dev/null; then
-    echo "$REQ_PROG not installed"
-    exit 1
-  fi
-done
-
-# check GNU sed is installed or not.
-# It is for OSX, which doesn't ship with GNU sed.
-if ! sed --version 2>/dev/null |grep "GNU sed" > /dev/null ;then
-  echo GNU sed is not installed, need to download.
-  SED_VERSION=4.2.2
-  SED_ARCHIVE="http://ftp.gnu.org/gnu/sed/sed-${SED_VERSION}.tar.bz2"
-else
-  SED_ARCHIVE=""
-fi
-
-# check zlib is installed
-if ! ${CC} test-zlib.c -o test-zlib -lz; then
-  echo "zlib not installed"
-  exit 1
-fi
-rm test-zlib 2>/dev/null
-rm test-zlib.exe 2>/dev/null
-
-# djcross-gcc-X.XX-tar.* maybe moved from /djgpp/rpms/ to /djgpp/deleted/rpms/ directory.
-OLD_DJCROSS_GCC_ARCHIVE=${DJCROSS_GCC_ARCHIVE/rpms\//deleted\/rpms\/}
-
-# download source files
-ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
-              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $OLD_DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
-              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE
-              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE"
-
-echo "Download source files..."
-mkdir -p download || exit 1
-cd download
-
-for ARCHIVE in $ARCHIVE_LIST; do
-  FILE=`basename $ARCHIVE`
-  if ! [ -f $FILE ]; then
-    echo "Download $ARCHIVE ..."
-    if [ ! -z $USE_WGET ]; then
-      DL_CMD="wget -U firefox $ARCHIVE"
-    else
-      DL_CMD="curl -f $ARCHIVE -L -o $FILE"
-    fi
-    echo "Command : $DL_CMD"
-    if ! eval $DL_CMD; then
-      if [ "$ARCHIVE" == "$DJCROSS_GCC_ARCHIVE" ]; then
-        echo "$FILE maybe moved to deleted/ directory."
-      else
-        rm $FILE
-        echo "Download $ARCHIVE failed."
-        exit 1
-      fi
-    fi
-  fi
-done
-cd ..
-
-# create target directory, check writable.
-echo "Make prefix directory : $DJGPP_PREFIX"
-mkdir -p $DJGPP_PREFIX
-
-if ! [ -d $DJGPP_PREFIX ]; then
-  echo "Unable to create prefix directory"
-  exit 1
-fi
-
-if ! [ -w $DJGPP_PREFIX ]; then
-  echo "prefix directory is not writable."
-  exit 1
-fi
-
-# make build dir
-echo "Make build dir"
-rm -rf build || exit 1
-mkdir -p build || exit 1
-cd build
-
-# build binutils
-echo "Building binutils"
-mkdir bnu${BINUTILS_VERSION}s
-cd bnu${BINUTILS_VERSION}s
-unzip ../../download/bnu${BINUTILS_VERSION}s.zip || exit 1
-cd gnu/binutils-* || exit
-
-# exec permission of some files are not set, fix it.
-for EXEC_FILE in install-sh missing; do
-  echo "chmod a+x $EXEC_FILE"
-  chmod a+x $EXEC_FILE || exit 1
-done
-
-sh ./configure \
-           --prefix=$DJGPP_PREFIX \
-           --target=i586-pc-msdosdjgpp \
-           --program-prefix=i586-pc-msdosdjgpp- \
-           --disable-werror \
-           --disable-nls \
-           || exit 1
-
-${MAKE} configure-bfd || exit 1
-${MAKE} -C bfd stmp-lcoff-h || exit 1
-${MAKE} || exit 1
-
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-
-${MAKE} install || exit 1
-
-cd ../../..
-# binutils done
-
-# prepare djcrx
-echo "Prepare djcrx"
-mkdir djcrx${DJCRX_VERSION}
-cd djcrx${DJCRX_VERSION}
-unzip ../../download/djcrx${DJCRX_VERSION}.zip || exit 1
-patch -p1 -u < ../../patch/patch-djcrx205.txt || exit 1
-
-cd src/stub
-${CC} -O2 stubify.c -o stubify || exit 1
-${CC} -O2 stubedit.c -o stubedit || exit 1
-
-cd ../..
-
-mkdir -p $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include || exit 1
-cp -rp include/* $DJGPP_PREFIX/i586-pc-msdosdjgpp/sys-include/ || exit 1
-cp -rp lib $DJGPP_PREFIX/i586-pc-msdosdjgpp/ || exit 1
-cp -p src/stub/stubify $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cp -p src/stub/stubedit $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-
-cd ..
-# djcrx done
-
-# build gcc
-tar -xjvf ../download/djcross-gcc-${GCC_VERSION}.tar.bz2 || exit 1
-cd djcross-gcc-${GCC_VERSION}/
-
-BUILDDIR=`pwd`
-
-echo "Building autoconf"
-cd $BUILDDIR
-tar xJf ../../download/autoconf-${AUTOCONF_VERSION}.tar.xz || exit 1
-cd autoconf-${AUTOCONF_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-${MAKE} all install || exit 1
-
-echo "Building automake"
-cd $BUILDDIR
-tar xJf ../../download/automake-${AUTOMAKE_VERSION}.tar.xz || exit 1
-cd automake-${AUTOMAKE_VERSION}/
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-./configure --prefix=$BUILDDIR/tmpinst || exit 1
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-${MAKE} all install || exit 1
-
-# build GNU sed if needed.
-SED=sed
-if [ ! -z $SED_VERSION ]; then
-  echo "Building sed"
-  cd $BUILDDIR
-  tar xjf ../../download/sed-${SED_VERSION}.tar.bz2 || exit 1
-  cd sed-${SED_VERSION}/
-  ./configure --prefix=$BUILDDIR/tmpinst || exit 1
-  ${MAKE} all install || exit 1
-  SED=$BUILDDIR/tmpinst/bin/sed
-fi
-
-cd $BUILDDIR
-tar xJf ../../download/gmp-${GMP_VERSION}.tar.xz || exit 1
-tar xJf ../../download/mpfr-${MPFR_VERSION}.tar.xz || exit 1
-tar xzf ../../download/mpc-${MPC_VERSION}.tar.gz || exit 1
-
-# gcc 4.8 or above unpack-gcc.sh needs to be patched for OSX
-# patch from :
-#   ( cd gnu && tar xf $top/$archive $tar_param && echo $archive >$top/s-sources )
-# to :
-#   ( cd gnu && tar xJf $top/$archive && echo $archive >$top/s-sources )
-echo "Patch unpack-gcc.sh"
-$SED -i "s/\(cd gnu && tar x\)\(f [^ ]* \)\([^ ]* \)/\1J\2/" unpack-gcc.sh || exit 1
-if [ `uname` = "FreeBSD" ]; then
-  # The --verbose option is not recognized by BSD patch
-  $SED -i 's/patch --verbose/patch/' unpack-gcc.sh || exit 1
-fi
-
-echo "Running unpack-gcc.sh"
-PATH="$BUILDDIR/tmpinst/bin:$PATH" sh unpack-gcc.sh --no-djgpp-source ../../download/gcc-${GCC_VERSION}.tar.xz || exit 1
-
-# patch gnu/gcc-X.XX/gcc/doc/gcc.texi
-echo "Patch gcc/doc/gcc.texi"
-cd gnu/gcc-*/gcc/doc || exit 1
-$SED -i "s/[^^]@\(\(tex\)\|\(end\)\)/\n@\1/g" gcc.texi || exit 1
-cd -
-
-# copy stubify programs
-cp $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/stubify $BUILDDIR/tmpinst/bin
-
-echo "Building gmp"
-cd $BUILDDIR/gmp-*/
-# On some systems, building gmp will fail if CFLAGS is set.
-# Unset CFLAGS during building gmp.
-env -u CFLAGS ./configure --enable-fat --prefix=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpfr"
-cd $BUILDDIR/mpfr-${MPFR_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building mpc"
-cd $BUILDDIR/mpc-${MPC_VERSION}/
-./configure --prefix=$BUILDDIR/tmpinst --with-gmp=$BUILDDIR/tmpinst --with-mpfr=$BUILDDIR/tmpinst --enable-static --disable-shared || exit 1
-${MAKE} all || exit 1
-if [ ! -z $MAKE_CHECK ]; then
-  echo "Run ${MAKE} check"
-  ${MAKE} check || exit 1
-fi
-${MAKE} install || exit 1
-
-echo "Building gcc"
-cd $BUILDDIR/
-
-mkdir djcross
-cd djcross
-
-PATH="$BUILDDIR//tmpinst/bin:$PATH" \
-../gnu/gcc-${GCC_VERSION_SHORT}/configure \
-                                 --target=i586-pc-msdosdjgpp \
-                                 --program-prefix=i586-pc-msdosdjgpp- \
-                                 --prefix=$DJGPP_PREFIX \
-                                 --disable-nls \
-                                 --disable-plugin \
-                                 --disable-lto \
-                                 --enable-lto \
-                                 --enable-libstdcxx-filesystem-ts \
-                                 --enable-libquadmath-support \
-                                 --with-gmp=$BUILDDIR/tmpinst \
-                                 --with-mpfr=$BUILDDIR/tmpinst \
-                                 --with-mpc=$BUILDDIR/tmpinst \
-                                 --enable-version-specific-runtime-libs \
-                                 --enable-languages=${ENABLE_LANGUAGES} \
-                                 || exit 1
-
-${MAKE} j=4 "PATH=$BUILDDIR/tmpinst/bin:$PATH" || exit 1
-
-${MAKE} install-strip || exit 1
-
-echo "Copy long name executables to short name."
-(
-  cd $DJGPP_PREFIX || exit 1
-  SHORT_NAME_LIST="gcc g++ c++ addr2line c++filt cpp size strings"
-  for SHORT_NAME in $SHORT_NAME_LIST; do
-    if [ -f bin/i586-pc-msdosdjgpp-gcc ]; then
-      cp bin/i586-pc-msdosdjgpp-$SHORT_NAME i586-pc-msdosdjgpp/bin/$SHORT_NAME
-    fi
-  done
-) || exit 1
-
-# gcc done
-
-# build djlsr (for dxegen / exe2coff)
-echo "Prepare djlsr"
-cd $BUILDDIR
-cd ..
-rm -rf djlsr${DJLSR_VERSION}
-mkdir djlsr${DJLSR_VERSION}
-cd djlsr${DJLSR_VERSION}
-unzip ../../download/djlsr${DJLSR_VERSION}.zip || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*/*" || exit 1
-unzip -o ../../download/djdev${DJDEV_VERSION}.zip "include/*" || exit 1
-patch -p1 -u < ../../patch/patch-djlsr205.txt || exit 1
-if [ "$CC" == "gcc" ]; then
-  echo "Building DXE tools."
-  cd src
-  PATH=$DJGPP_PREFIX/bin/:$PATH make || exit 1
-  cp dxe/dxegen dxe/dxe3gen dxe/dxe3res $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-  cd ..
-else
-  echo "Building DXE tools requires gcc, skip."
-fi
-cd src/stub
-${CC} -o exe2coff exe2coff.c || exit 1
-cp -p exe2coff $DJGPP_PREFIX/i586-pc-msdosdjgpp/bin/ || exit 1
-cd ../../..
-# djlsr done
-
-# copy setenv script
-(cd $BUILDDIR/../../setenv/ && ./copyfile.sh $DJGPP_PREFIX) || exit 1
-
-echo "Testing DJGPP."
-cd $BUILDDIR
-cd ..
-echo "Use DJGPP to build a test C program."
-$DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-gcc ../hello.c -o hello || exit 1
-
-for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
-do
-  case $x in
-    c++)
-      echo "Use DJGPP to build a test C++ program."
-      $DJGPP_PREFIX/bin/i586-pc-msdosdjgpp-c++ ../hello-cpp.cpp -o hello-cpp || exit 1
-      ;;
-  esac
-done
-
-echo "build-djgpp.sh done."
diff --git a/script/build-avr-gcc.sh b/script/build-avr-gcc.sh
new file mode 100644
index 00000000..3fd3de74
--- /dev/null
+++ b/script/build-avr-gcc.sh
@@ -0,0 +1,126 @@
+cd ${BASE}/build/
+
+if [ ! -z ${AVRLIBC_VERSION} ]; then
+  if [ ! -e avr-libc-${AVRLIBC_VERSION}/avr-libc-unpacked ]; then
+    echo "Unpacking avr-libc..."
+    untar ${AVRLIBC_ARCHIVE}
+    cd avr-libc-${AVRLIBC_VERSION}/
+    untar ${AVRLIBC_DOC_ARCHIVE}
+    touch avr-libc-unpacked
+    cd ..
+  fi
+  cd avr-libc-${AVRLIBC_VERSION}/
+  ${SUDO} mkdir -p ${DST}/${TARGET}/include/
+  install_files include/* ${DST}/${TARGET}/include/ | exit 1
+  echo "Installing avr-libc documentation"
+  ${SUDO} mkdir -p ${DST}/${TARGET}/share/man/
+  install_files man/* ${DST}/${TARGET}/share/man/ | exit 1
+  cd ..
+fi
+
+if [ ! -z ${GCC_VERSION} ]; then
+  if [ ! -e gcc-${GCC_VERSION}/gcc-unpacked ]; then
+    echo "Unpacking gcc..."
+    untar ${GCC_ARCHIVE}
+
+    pushd gcc-${GCC_VERSION} || exit 1
+
+    if [ ! -z ${BUILD_DEB} ]; then
+      echo "Unpacking gcc dependencies"
+      for URL in $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE $ISL_ARCHIVE; do
+        FILE=`basename $URL`
+        untar ${FILE}
+        mv ${FILE%.*.*} ${FILE%%-*} || exit 1
+      done
+    else
+      echo "Downloading gcc dependencies"
+      sed -i 's/ftp/http/g' contrib/download_prerequisites
+      ./contrib/download_prerequisites || exit 1
+    fi
+
+    touch gcc-unpacked
+    popd
+  fi
+
+  echo "Building gcc (stage 1)"
+
+  mkdir -p gcc-${GCC_VERSION}/build-${TARGET}
+  cd gcc-${GCC_VERSION}/build-${TARGET} || exit 1
+
+  TEMP_CFLAGS="$CFLAGS"
+  TEMP_CXXFLAGS="$CXXFLAGS"
+  export CFLAGS="$CFLAGS $GCC_EXTRA_CFLAGS"
+  export CXXFLAGS="$CXXFLAGS $GCC_EXTRA_CXXFLAGS"
+
+  GCC_CONFIGURE_OPTIONS+=" --target=${TARGET} --prefix=${PREFIX} ${HOST_FLAG} ${BUILD_FLAG}
+                           --enable-languages=${ENABLE_LANGUAGES}
+                           --with-avrlibc"
+  strip_whitespace GCC_CONFIGURE_OPTIONS
+
+  if [ ! -e configure-prefix ] || [ ! "`cat configure-prefix`" == "${GCC_CONFIGURE_OPTIONS}" ]; then
+    rm -rf *
+    rm -rf ${BASE}/build/avr-libc-${AVRLIBC_VERSION}/build-${TARGET}/*
+    eval "../configure ${GCC_CONFIGURE_OPTIONS}" || exit 1
+    echo ${GCC_CONFIGURE_OPTIONS} > configure-prefix
+  else
+    echo "Note: gcc already configured. To force a rebuild, use: rm -rf $(pwd)"
+    [ -z ${BUILD_BATCH} ] && sleep 5
+  fi
+
+  ${MAKE_J} all-gcc || exit 1
+  echo "Installing gcc (stage 1)"
+  ${SUDO} ${MAKE_J} install-gcc || exit 1
+
+  CFLAGS="$TEMP_CFLAGS"
+  CXXFLAGS="$TEMP_CXXFLAGS"
+fi
+
+cd ${BASE}/build/
+
+if [ ! -z ${AVRLIBC_VERSION} ]; then
+  echo "Building avr-libc"
+  mkdir -p avr-libc-${AVRLIBC_VERSION}/build-${TARGET}
+  cd avr-libc-${AVRLIBC_VERSION}/build-${TARGET} || exit 1
+
+  AVRLIBC_CONFIGURE_OPTIONS+=" --host=${TARGET} --prefix=${PREFIX} ${BUILD_FLAG}"
+  strip_whitespace AVRLIBC_CONFIGURE_OPTIONS
+
+  if [ ! -z ${GCC_VERSION} ] || [ ! "`cat configure-options 2> /dev/null`" == "${AVRLIBC_CONFIGURE_OPTIONS}" ]; then
+    rm -rf *
+    CC=avr-gcc ../configure ${AVRLIBC_CONFIGURE_OPTIONS} || exit 1
+    echo ${AVRLIBC_CONFIGURE_OPTIONS} > configure-options
+  else
+    echo "Note: avr-libc already configured. To force a rebuild, use: rm -rf $(pwd)"
+    [ -z ${BUILD_BATCH} ] && sleep 5
+  fi
+
+  ${MAKE_J} || exit 1
+  [ ! -z $MAKE_CHECK ] && ${MAKE_J} -s check | tee ${BASE}/tests/avr-libc.log
+  echo "Installing avr-libc"
+  ${SUDO} ${MAKE_J} install || exit 1
+fi
+
+cd ${BASE}/build/
+
+if [ ! -z ${GCC_VERSION} ]; then
+  echo "Building gcc (stage 2)"
+  cd gcc-${GCC_VERSION}/build-${TARGET} || exit 1
+
+  TEMP_CFLAGS="$CFLAGS"
+  TEMP_CXXFLAGS="$CXXFLAGS"
+  export CFLAGS="$CFLAGS $GCC_EXTRA_CFLAGS"
+  export CXXFLAGS="$CXXFLAGS $GCC_EXTRA_CXXFLAGS"
+
+  export STAGE_CC_WRAPPER="${BASE}/script/destdir-hack.sh ${DST}/${TARGET}"
+  ${MAKE_J} || exit 1
+  [ ! -z $MAKE_CHECK_GCC ] && ${MAKE_J} -s check-gcc | tee ${BASE}/tests/gcc.log
+  echo "Installing gcc"
+  ${SUDO} ${MAKE_J} install-strip || \
+  ${SUDO} ${MAKE_J} install-strip || exit 1
+  ${SUDO} ${MAKE_J} -C mpfr install DESTDIR=${BASE}/build/tmpinst
+
+  CFLAGS="$TEMP_CFLAGS"
+  CXXFLAGS="$TEMP_CXXFLAGS"
+
+  set_version gcc
+fi
diff --git a/script/build-binutils.sh b/script/build-binutils.sh
new file mode 100644
index 00000000..bcc1efdf
--- /dev/null
+++ b/script/build-binutils.sh
@@ -0,0 +1,31 @@
+mkdir -p build-${TARGET}
+cd build-${TARGET} || exit 1
+
+echo "Building binutils"
+
+BINUTILS_CONFIGURE_OPTIONS+=" --target=${TARGET} --prefix=${PREFIX} ${HOST_FLAG} ${BUILD_FLAG}"
+strip_whitespace BINUTILS_CONFIGURE_OPTIONS
+
+if [ ! -e configure-prefix ] || [ ! "`cat configure-prefix`" = "${BINUTILS_CONFIGURE_OPTIONS}" ]; then
+  rm -rf *
+  ../configure ${BINUTILS_CONFIGURE_OPTIONS} || exit 1
+  echo ${BINUTILS_CONFIGURE_OPTIONS} > configure-prefix
+else
+  echo "Note: binutils already configured. To force a rebuild, use: rm -rf $(pwd)"
+  [ -z ${BUILD_BATCH} ] && sleep 5
+fi
+
+case $TARGET in
+*-msdosdjgpp)
+  ${MAKE_J} configure-bfd || exit 1
+  ${MAKE_J} -C bfd stmp-lcoff-h || exit 1
+  ;;
+*) ;;
+esac
+
+${MAKE_J} || exit 1
+[ ! -z $MAKE_CHECK ] && ${MAKE_J} -s check | tee ${BASE}/tests/binutils.log
+echo "Installing binutils"
+${SUDO} ${MAKE_J} install || exit 1
+
+set_version binutils
diff --git a/script/build-gdb.sh b/script/build-gdb.sh
new file mode 100644
index 00000000..f53c659d
--- /dev/null
+++ b/script/build-gdb.sh
@@ -0,0 +1,32 @@
+cd ${BASE}/build
+
+if [ ! -z ${GDB_VERSION} ]; then
+  if [ ! -e gdb-${GDB_VERSION}/gdb-unpacked ]; then
+    echo "Unpacking gdb..."
+    untar ${GDB_ARCHIVE} || exit 1
+    touch gdb-${GDB_VERSION}/gdb-unpacked
+  fi
+  mkdir -p gdb-${GDB_VERSION}/build-${TARGET}
+  cd gdb-${GDB_VERSION}/build-${TARGET} || exit 1
+
+  echo "Building gdb"
+  
+  GDB_CONFIGURE_OPTIONS+=" --target=${TARGET} --prefix=${PREFIX} ${HOST_FLAG} ${BUILD_FLAG}"
+  [ -e ${BASE}/build/tmpinst${PREFIX}/lib/libmpfr.a ] && GDB_CONFIGURE_OPTIONS+=" --with-mpfr=${BASE}/build/tmpinst${PREFIX}"
+  strip_whitespace GDB_CONFIGURE_OPTIONS
+
+  if [ ! -e configure-prefix ] || [ ! "`cat configure-prefix`" = "${GDB_CONFIGURE_OPTIONS}" ]; then
+    rm -rf *
+    ../configure ${GDB_CONFIGURE_OPTIONS} || exit 1
+    echo ${GDB_CONFIGURE_OPTIONS} > configure-prefix
+  else
+    echo "Note: gdb already configured. To force a rebuild, use: rm -rf $(pwd)"
+    [ -z ${BUILD_BATCH} ] && sleep 5
+  fi
+  ${MAKE_J} || exit 1
+  [ ! -z $MAKE_CHECK ] && ${MAKE_J} -s check | tee ${BASE}/tests/gdb.log
+  echo "Installing gdb"
+  ${SUDO} ${MAKE_J} install || exit 1
+
+  set_version gdb
+fi
diff --git a/script/build-newlib-gcc.sh b/script/build-newlib-gcc.sh
new file mode 100644
index 00000000..cc028bfd
--- /dev/null
+++ b/script/build-newlib-gcc.sh
@@ -0,0 +1,119 @@
+cd ${BASE}/build/
+
+if [ ! -z ${NEWLIB_VERSION} ] && [ ! -e newlib-${NEWLIB_VERSION}/newlib-unpacked ]; then
+  echo "Unpacking newlib..."
+  untar ${NEWLIB_ARCHIVE}
+  ${SUDO} mkdir -p ${DST}/${TARGET}/include/
+  install_files newlib-${NEWLIB_VERSION}/newlib/libc/include/* ${DST}/${TARGET}/include/ | exit 1
+  touch newlib-${NEWLIB_VERSION}/newlib-unpacked
+fi
+
+if [ ! -z ${GCC_VERSION} ]; then
+  if [ ! -e gcc-${GCC_VERSION}/gcc-unpacked ]; then
+    echo "Unpacking gcc..."
+    untar ${GCC_ARCHIVE}
+
+    pushd gcc-${GCC_VERSION} || exit 1
+
+    if [ ! -z ${BUILD_DEB} ]; then
+      echo "Unpacking gcc dependencies"
+      for URL in $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE $ISL_ARCHIVE; do
+        FILE=`basename $URL`
+        untar ${FILE}
+        mv ${FILE%.*.*} ${FILE%%-*} || exit 1
+      done
+    else
+      echo "Downloading gcc dependencies"
+      sed -i 's/ftp/http/g' contrib/download_prerequisites
+      ./contrib/download_prerequisites || exit 1
+    fi
+
+    touch gcc-unpacked
+    popd
+  else
+    echo "gcc already unpacked, skipping."
+  fi
+
+  echo "Building gcc (stage 1)"
+
+  mkdir -p gcc-${GCC_VERSION}/build-${TARGET}
+  cd gcc-${GCC_VERSION}/build-${TARGET} || exit 1
+
+  TEMP_CFLAGS="$CFLAGS"
+  TEMP_CXXFLAGS="$CXXFLAGS"
+  export CFLAGS="$CFLAGS $GCC_EXTRA_CFLAGS"
+  export CXXFLAGS="$CXXFLAGS $GCC_EXTRA_CXXFLAGS"
+
+  GCC_CONFIGURE_OPTIONS+=" --target=${TARGET} --prefix=${PREFIX} ${HOST_FLAG} ${BUILD_FLAG}
+                           --enable-languages=${ENABLE_LANGUAGES}
+                           --with-newlib"
+  strip_whitespace GCC_CONFIGURE_OPTIONS
+
+  if [ ! -e configure-prefix ] || [ ! "`cat configure-prefix`" == "${GCC_CONFIGURE_OPTIONS}" ]; then
+    rm -rf *
+    rm -rf ${BASE}/build/newlib-${NEWLIB_VERSION}/build-${TARGET}/*
+    eval "../configure ${GCC_CONFIGURE_OPTIONS}" || exit 1
+    echo ${GCC_CONFIGURE_OPTIONS} > configure-prefix
+  else
+    echo "Note: gcc already configured. To force a rebuild, use: rm -rf $(pwd)"
+    [ -z ${BUILD_BATCH} ] && sleep 5
+  fi
+
+  ${MAKE_J} all-gcc || exit 1
+  echo "Installing gcc (stage 1)"
+  ${SUDO} ${MAKE_J} install-gcc || exit 1
+
+  CFLAGS="$TEMP_CFLAGS"
+  CXXFLAGS="$TEMP_CXXFLAGS"
+fi
+
+cd ${BASE}/build/
+
+if [ ! -z ${NEWLIB_VERSION} ]; then
+  echo "Building newlib"
+  mkdir -p newlib-${NEWLIB_VERSION}/build-${TARGET}
+  cd newlib-${NEWLIB_VERSION}/build-${TARGET} || exit 1
+
+  NEWLIB_CONFIGURE_OPTIONS+=" --target=${TARGET} --prefix=${PREFIX} ${HOST_FLAG} ${BUILD_FLAG}"
+  strip_whitespace NEWLIB_CONFIGURE_OPTIONS
+
+  if [ ! -z ${GCC_VERSION} ] || [ ! "`cat configure-options 2> /dev/null`" == "${NEWLIB_CONFIGURE_OPTIONS}" ]; then
+    rm -rf *
+    ../configure ${NEWLIB_CONFIGURE_OPTIONS} || exit 1
+    echo ${NEWLIB_CONFIGURE_OPTIONS} > configure-options
+  else
+    echo "Note: newlib already configured. To force a rebuild, use: rm -rf $(pwd)"
+    [ -z ${BUILD_BATCH} ] && sleep 5
+  fi
+
+  ${MAKE_J} || exit 1
+  [ ! -z $MAKE_CHECK ] && ${MAKE_J} -s check | tee ${BASE}/tests/newlib.log
+  echo "Installing newlib"
+  ${SUDO} ${MAKE_J} install || \
+  ${SUDO} ${MAKE_J} install || exit 1
+fi
+
+cd ${BASE}/build/
+
+if [ ! -z ${GCC_VERSION} ]; then
+  echo "Building gcc (stage 2)"
+  cd gcc-${GCC_VERSION}/build-${TARGET} || exit 1
+
+  TEMP_CFLAGS="$CFLAGS"
+  TEMP_CXXFLAGS="$CXXFLAGS"
+  export CFLAGS="$CFLAGS $GCC_EXTRA_CFLAGS"
+  export CXXFLAGS="$CXXFLAGS $GCC_EXTRA_CXXFLAGS"
+  export STAGE_CC_WRAPPER="${BASE}/script/destdir-hack.sh ${DST}/${TARGET}"
+
+  ${MAKE_J} || exit 1
+  [ ! -z $MAKE_CHECK_GCC ] && ${MAKE_J} -s check-gcc | tee ${BASE}/tests/gcc.log
+  echo "Installing gcc"
+  ${SUDO} ${MAKE_J} install-strip || \
+  ${SUDO} ${MAKE_J} install-strip || exit 1
+  ${SUDO} ${MAKE_J} -C mpfr install DESTDIR=${BASE}/build/tmpinst
+
+  CFLAGS="$TEMP_CFLAGS"
+  CXXFLAGS="$TEMP_CXXFLAGS"
+
+  set_version gcc
+fi
diff --git a/script/build-tools.sh b/script/build-tools.sh
new file mode 100644
index 00000000..ca7bad1a
--- /dev/null
+++ b/script/build-tools.sh
@@ -0,0 +1,20 @@
+mkdir -p ${BASE}/build/tmpinst
+export PATH="${BASE}/build/tmpinst/bin:$PATH"
+
+cd ${BASE}/build || exit 1
+
+# build GNU sed if needed.
+if [ ! -z "${SED_VERSION}" ]; then
+  if [ ! "$(${BASE}/build/tmpinst/sed-version 2> /dev/null)" == "${SED_VERSION}" ]; then
+    echo "Building sed"
+    untar ${SED_ARCHIVE} || exit 1
+    cd sed-${SED_VERSION}/
+    TEMP_CFLAGS="$CFLAGS"
+    export CFLAGS="${CFLAGS//-w}"   # configure fails if warnings are disabled.
+    ./configure --prefix=${BASE}/build/tmpinst || exit 1
+    ${MAKE_J} || exit 1
+    ${MAKE_J} DESTDIR= install || exit 1
+    CFLAGS="$TEMP_CFLAGS"
+    echo ${SED_VERSION} > ${BASE}/build/tmpinst/sed-version
+  fi
+fi
diff --git a/script/check-deps-and-confirm.sh b/script/check-deps-and-confirm.sh
new file mode 100644
index 00000000..8dce597c
--- /dev/null
+++ b/script/check-deps-and-confirm.sh
@@ -0,0 +1,176 @@
+if [ -z ${IGNORE_DEPENDENCIES} ]; then
+  for DEP in ${DEPS}; do
+    case $DEP in
+      djgpp)    [ -z "$(get_version djgpp)" ]    && add_pkg djgpp ;;
+      newlib)   [ -z "$(get_version newlib)" ]   && add_pkg newlib ;;
+      avr-libc) [ -z "$(get_version avr-libc)" ] && add_pkg avr-libc ;;
+      binutils) [ -z "$(get_version binutils)" ] && add_pkg binutils ;;
+      gcc)      [ -z "$(get_version gcc)" ]      && add_pkg gcc ;;
+      gdb)      [ -z "$(get_version gdb)" ]      && add_pkg gdb ;;
+    esac
+  done
+fi
+
+if [ ! -z ${GCC_VERSION} ] && [ -z ${DJCROSS_GCC_ARCHIVE} ]; then
+  DJCROSS_GCC_ARCHIVE="${DJGPP_DOWNLOAD_BASE}/djgpp/rpms/djcross-gcc-${GCC_VERSION}/djcross-gcc-${GCC_VERSION}.tar.bz2"
+  # djcross-gcc-X.XX-tar.* maybe moved from /djgpp/rpms/ to /djgpp/deleted/rpms/ directory.
+  OLD_DJCROSS_GCC_ARCHIVE=${DJCROSS_GCC_ARCHIVE/rpms\//deleted\/rpms\/}
+fi
+
+case $TARGET in
+*-msdosdjgpp) ;;
+*) unset DJCROSS_GCC_ARCHIVE OLD_DJCROSS_GCC_ARCHIVE ;;
+esac
+
+if [ ! -z ${BUILD_DEB} ] && [ ! -z ${GCC_VERSION} ]; then
+  GMP_VERSION=${GMP_VERSION:-6.2.1}
+  MPFR_VERSION=${MPFR_VERSION:-4.1.0}
+  MPC_VERSION=${MPC_VERSION:-1.2.0}
+  ISL_VERSION=${ISL_VERSION:-0.24}
+
+  GMP_ARCHIVE="http://ftpmirror.gnu.org/gnu/gmp/gmp-${GMP_VERSION}.tar.xz"
+  MPFR_ARCHIVE="http://ftpmirror.gnu.org/gnu/mpfr/mpfr-${MPFR_VERSION}.tar.xz"
+  MPC_ARCHIVE="http://ftpmirror.gnu.org/gnu/mpc/mpc-${MPC_VERSION}.tar.gz"
+  ISL_ARCHIVE="http://gcc.gnu.org/pub/gcc/infrastructure/isl-${ISL_VERSION}.tar.bz2"
+fi
+
+# check GNU sed is installed or not.
+# It is for OSX, which doesn't ship with GNU sed.
+if ! sed --version 2>/dev/null | grep "GNU sed" > /dev/null ;then
+  echo GNU sed is not installed, need to download.
+  SED_VERSION=4.4
+  SED_ARCHIVE="http://ftpmirror.gnu.org/sed/sed-${SED_VERSION}.tar.xz"
+else
+  SED_ARCHIVE=""
+fi
+
+if [ -z ${NO_DOWNLOAD} ]; then
+  # MinGW32 doesn't have curl, so we use wget.
+  if ! which curl > /dev/null; then
+    USE_WGET=1
+    if ! which wget > /dev/null; then
+      echo "curl or wget not installed"
+      exit 1
+    fi
+  fi
+fi
+
+[ ! -z ${ONLY_DOWNLOAD} ] && return
+
+if [ -z ${TARGET} ]; then
+  echo "Please specify a target with: --target=..."
+  exit 1
+fi
+
+DST="${DESTDIR}${PREFIX}"
+export DESTDIR
+
+# check python version for gdb
+if [ ! -z ${GDB_VERSION} ]; then
+  let GDB_VERSION_MAJOR=${GDB_VERSION%%.*}
+  if (( ${GDB_VERSION_MAJOR} >= 9 )); then
+    PYTHON=python3
+  else
+    PYTHON=python2
+  fi
+  if ! which ${PYTHON} > /dev/null; then
+    echo "WARNING: ${PYTHON} not installed"
+    prepend GDB_CONFIGURE_OPTIONS "--with-python=no"
+  else
+    prepend GDB_CONFIGURE_OPTIONS "--with-python=`which ${PYTHON}`"
+  fi
+fi
+
+# check required programs
+REQ_PROG_LIST="${CXX} ${CC} unzip bison flex ${MAKE} makeinfo patch tar xz bunzip2 gunzip"
+
+[ ! -z "${WATT32_VERSION}" ] && REQ_PROG_LIST+=" nasm"
+
+for REQ_PROG in $REQ_PROG_LIST; do
+  if ! which $REQ_PROG > /dev/null; then
+    echo "$REQ_PROG not installed"
+    exit 1
+  fi
+done
+
+# check zlib is installed
+if ! ${CC} ${BASE}/script/test-zlib.c -o test-zlib -lz; then
+  echo "zlib not installed"
+  exit 1
+fi
+rm test-zlib 2>/dev/null
+rm test-zlib.exe 2>/dev/null
+
+echo "You are about to build and install:"
+[ -z ${DJGPP_VERSION} ]    || echo "    - DJGPP libraries and utilities ${DJGPP_VERSION}"
+[ -z ${NEWLIB_VERSION} ]   || echo "    - newlib ${NEWLIB_VERSION}"
+[ -z ${BINUTILS_VERSION} ] || echo "    - binutils ${BINUTILS_VERSION}"
+[ -z ${GCC_VERSION} ]      || echo "    - gcc ${GCC_VERSION}"
+[ -z ${GDB_VERSION} ]      || echo "    - gdb ${GDB_VERSION}"
+[ -z ${AVRLIBC_VERSION} ]  || echo "    - avr-libc ${AVRLIBC_VERSION}"
+[ -z ${AVRDUDE_VERSION} ]  || echo "    - AVRDUDE ${AVRDUDE_VERSION}"
+[ -z ${AVARICE_VERSION} ]  || echo "    - AVaRICE ${AVARICE_VERSION}"
+[ -z ${SIMULAVR_VERSION} ] || echo "    - SimulAVR ${SIMULAVR_VERSION}"
+[ -z ${WATT32_VERSION} ]   || echo "    - Watt-32 ${WATT32_VERSION}"
+
+echo ""
+echo "With the following options:"
+[ ! -z ${IGNORE_DEPENDENCIES} ] && echo "    IGNORE_DEPENDENCIES=${IGNORE_DEPENDENCIES}"
+[ ! -z ${DESTDIR} ]             && echo "    DESTDIR=${DESTDIR}"
+echo "    TARGET=${TARGET}"
+echo "    HOST=${HOST}"
+echo "    BUILD=${BUILD}"
+echo "    PREFIX=${PREFIX}"
+echo "    CC=${CC}"
+echo "    CXX=${CXX}"
+echo "    CFLAGS=${CFLAGS}"
+echo "    CXXFLAGS=${CXXFLAGS}"
+echo "    CFLAGS_FOR_TARGET=${CFLAGS_FOR_TARGET}"
+echo "    CXXFLAGS_FOR_TARGET=${CXXFLAGS_FOR_TARGET}"
+echo "    LDFLAGS=${LDFLAGS}"
+echo "    MAKE=${MAKE}"
+echo "    MAKE_JOBS=${MAKE_JOBS}"
+echo "    MAKE_CHECK=${MAKE_CHECK}"
+echo "    MAKE_CHECK_GCC=${MAKE_CHECK_GCC}"
+if [ ! -z ${HOST} ]; then
+  echo "    HOST_CC=`echo ${HOST_CC}`"
+  echo "    HOST_CXX=`echo ${HOST_CXX}`"
+fi
+if [ ! -z ${GCC_VERSION} ]; then
+  echo "    ENABLE_LANGUAGES=${ENABLE_LANGUAGES}"
+  echo "    GCC_CONFIGURE_OPTIONS=`echo ${GCC_CONFIGURE_OPTIONS}`"
+fi
+if [ ! -z ${BINUTILS_VERSION} ]; then
+  echo "    BINUTILS_CONFIGURE_OPTIONS=`echo ${BINUTILS_CONFIGURE_OPTIONS}`"
+fi
+if [ ! -z ${GDB_VERSION} ]; then
+  echo "    GDB_CONFIGURE_OPTIONS=`echo ${GDB_CONFIGURE_OPTIONS}`"
+fi
+if [ ! -z ${NEWLIB_VERSION} ]; then
+  echo "    NEWLIB_CONFIGURE_OPTIONS=`echo ${NEWLIB_CONFIGURE_OPTIONS}`"
+fi
+if [ ! -z ${AVRLIBC_VERSION} ]; then
+  echo "    AVRLIBC_CONFIGURE_OPTIONS=`echo ${AVRLIBC_CONFIGURE_OPTIONS}`"
+fi
+echo ""
+
+mkdir -p ${DST} 2> /dev/null
+
+if [ ! -d ${DST} ] || [ ! -w ${DST} ]; then
+  if [ ! -z ${BUILD_BATCH} ]; then
+    if ! sudo -n : 2> /dev/null; then
+      echo "ERROR: no write access to ${DST} (requires sudo)"
+      exit 1
+    fi
+  else
+    echo "WARNING: no write access to ${DST}"
+    echo "You may need to enter your sudo password several times during the build process."
+    echo ""
+  fi
+  SUDO=sudo
+fi
+
+if [ -z ${BUILD_BATCH} ]; then
+  echo "If you wish to change anything, press CTRL-C now. Otherwise, press any other key to continue."
+  read -s -n 1
+fi
diff --git a/script/destdir-hack.sh b/script/destdir-hack.sh
new file mode 100755
index 00000000..cd469b33
--- /dev/null
+++ b/script/destdir-hack.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+DIR=$1
+shift
+GCC=$1
+shift
+exec ${GCC} -B${DIR}/lib/ -isystem ${DIR}/watt/inc/ -isystem ${DIR}/sys-include/ -isystem ${DIR}/include/ "$@"
diff --git a/script/download.sh b/script/download.sh
new file mode 100644
index 00000000..4f1642d2
--- /dev/null
+++ b/script/download.sh
@@ -0,0 +1,138 @@
+# download source files
+ARCHIVE_LIST="$BINUTILS_ARCHIVE $DJCRX_ARCHIVE $DJLSR_ARCHIVE $DJDEV_ARCHIVE
+              $SED_ARCHIVE $DJCROSS_GCC_ARCHIVE $OLD_DJCROSS_GCC_ARCHIVE $GCC_ARCHIVE
+              $AUTOCONF_ARCHIVE $AUTOMAKE_ARCHIVE $GDB_ARCHIVE $NEWLIB_ARCHIVE
+              $AVRLIBC_ARCHIVE $AVRLIBC_DOC_ARCHIVE $AVRDUDE_ARCHIVE $AVARICE_ARCHIVE
+              $GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE $ISL_ARCHIVE"
+
+# these variables are of the form "git://url/repo.git::branch"
+# if 'branch' is empty then the default branch is checked out.
+GIT_LIST="$DJGPP_GIT $GCC_GIT $BINUTILS_GIT $NEWLIB_GIT $SIMULAVR_GIT $WATT32_GIT"
+
+mkdir -p download
+cd download/ || exit 1
+
+# Remove files that don't belong in the Debian package.
+if [ ! -z "$BUILD_DEB" ]; then
+  for FILE in $(find * -maxdepth 0 -type f); do
+    for ARCHIVE in $ARCHIVE_LIST; do
+      [ "$FILE" == "$(basename $ARCHIVE)" ] && continue 2
+    done
+    for REPO in $GIT_LIST; do
+      REPO=${REPO%::*}
+      REPO=${REPO%.*}
+      [ "$FILE" == "$(basename $REPO)-git.tar" ] && continue 2
+    done
+    rm -f $FILE
+  done
+fi
+
+if [ -z ${NO_DOWNLOAD} ]; then
+  echo "Download source files..."
+
+  for ARCHIVE in $ARCHIVE_LIST; do
+    FILE=`basename $ARCHIVE`
+    if ! [ -f $FILE ]; then
+      echo "Download $ARCHIVE ..."
+      if [ ! -z $USE_WGET ]; then
+        DL_CMD="wget -U firefox $ARCHIVE"
+      else
+        DL_CMD="curl -f $ARCHIVE -L -o $FILE"
+      fi
+      while true; do
+        if eval $DL_CMD; then
+          break
+        else
+          if [ "$ARCHIVE" == "$DJCROSS_GCC_ARCHIVE" ]; then
+            echo "$FILE maybe moved to deleted/ directory."
+            break
+          else
+            rm $FILE
+            echo "Download $FILE failed, retrying in 5 seconds... (press CTRL-C to abort)"
+            sleep 5
+          fi
+        fi
+      done
+    fi
+  done
+fi
+
+download_git()
+{
+  local repo=$(basename $1)
+  repo=${repo%.*}
+  if [ ! -d $repo/ ] || [ "`cd $repo/ && git remote get-url origin`" != "$1" ]; then
+    if [ -f $repo-git.tar ]; then
+      untar $repo-git.tar
+    fi
+    if [ ! -d $repo/ ] || [ "`cd $repo/ && git remote get-url origin`" != "$1" ]; then
+      if [ -z ${NO_DOWNLOAD} ]; then
+        echo "Downloading $repo..."
+        rm -rf $repo/
+        git clone $1 --depth 1 $([ "$2" != "" ] && echo "--branch $2")
+      else
+        echo "Missing: $repo"
+        exit 1
+      fi
+    fi
+  fi
+  cd $repo/ || exit 1
+  if [ -z ${NO_GIT_RESET} ]; then
+    git reset --hard HEAD
+    git checkout $2
+    if [ -z ${NO_DOWNLOAD} ]; then
+      git fetch origin
+      git reset --hard origin/$2 || exit 1
+    fi
+  fi
+  cd ${BASE}/download/ || exit 1
+  if [ ! -z ${ONLY_DOWNLOAD} ] && [ ! -z ${BUILD_DEB} ]; then
+    # Pack git sources for Debian package.
+    find $repo/* ! -wholename '*/.git/*' -delete 2>&1 > /dev/null
+    tar -c -f $repo-git.tar $repo
+    return
+  fi
+  mkdir -p ${BASE}/build
+  rm -rf ${BASE}/build/$repo
+  ln -fs ../download/$repo ${BASE}/build/$repo || exit 1
+}
+
+for REPO in $GIT_LIST; do
+  download_git ${REPO%::*} ${REPO##*::}
+done
+
+for ARCHIVE in $ARCHIVE_LIST; do
+  FILE=`basename $ARCHIVE`
+  if ! [ -f $FILE ]; then
+    echo "Missing: $FILE"
+    exit 1
+  fi
+done
+
+if [ ! -z ${ONLY_DOWNLOAD} ]; then
+  if [ ! -z ${BUILD_DEB} ]; then
+    # Remove git sources that don't belong in the Debian package.
+    rm -rf ${BASE}/download/*/
+  fi
+  exit 0
+fi
+
+cd ${BASE}/ || exit 1
+
+echo "Creating install directory: ${DST}"
+[ -d ${DST} ] || ${SUDO} mkdir -p ${DST} || exit 1
+[ -d ${DST}/${TARGET}/etc/ ] || ${SUDO} mkdir -p ${DST}/${TARGET}/etc/ || exit 1
+
+export PATH="${DST}/bin:${PREFIX}/bin:$PATH"
+
+if which ${TARGET}-gcc 2>&1 > /dev/null; then
+  echo "Removing previously-installed specs file"
+  for i in {"${DST}","${PREFIX}"}/lib/gcc/${TARGET}/$(${TARGET}-gcc -dumpversion)/specs; do
+    if [ -e "$i" ]; then
+      ${SUDO} rm -f "$i" || exit 1
+    fi
+  done
+fi
+
+rm -rf ${BASE}/tests
+mkdir -p ${BASE}/tests
diff --git a/script/finalize.sh b/script/finalize.sh
new file mode 100644
index 00000000..af2ff8e3
--- /dev/null
+++ b/script/finalize.sh
@@ -0,0 +1,164 @@
+echo "Copy long name executables to short name."
+pushd ${DST} || exit 1
+${SUDO} mkdir -p ${TARGET}/bin
+SHORT_NAME_LIST="dxegen dxe3gen dxe3res exe2coff stubify stubedit djasm gdb
+                 g++ c++ cpp gcc gprof gcc-nm gcov-tool gcc-ranlib gcc-ar gcov-dump gcov
+                 strings ld readelf ld.bfd size addr2line strip objcopy c++filt ar gprof ranlib as nm elfedit objdump"
+for SHORT_NAME in $SHORT_NAME_LIST; do
+  if [ -f bin/${TARGET}-$SHORT_NAME ]; then
+    install_files -p bin/${TARGET}-$SHORT_NAME ${TARGET}/bin/$SHORT_NAME 2> /dev/null
+  fi
+done
+if [ ! -z ${GCC_VERSION} ]; then
+  install_files bin/${TARGET}-gcc bin/${TARGET}-gcc-${GCC_VERSION} 2> /dev/null
+  install_files bin/${TARGET}-g++ bin/${TARGET}-g++-${GCC_VERSION} 2> /dev/null
+  install_files ${TARGET}/bin/gcc ${TARGET}/bin/gcc-${GCC_VERSION} 2> /dev/null
+  install_files ${TARGET}/bin/g++ ${TARGET}/bin/g++-${GCC_VERSION} 2> /dev/null
+fi
+popd
+
+cat << STOP > ${BASE}/build/${TARGET}-setenv
+#!/usr/bin/env bash
+case "\$1" in
+-*) cat << EOF >&2
+Usage: [source] \$(basename \$0) [command [arguments ...]]
+
+Set up environment variables for convenient access to the cross-compiling
+toolchain targeting ${TARGET}.
+This allows you to invoke the toolchain utilities via their short names (eg.
+'gcc'), access target-specific documentation via 'man' and 'info', and locate
+target libraries via 'pkg-config'.
+
+This script may be invoked in one of three ways:
+ * With no arguments: starts a new shell.
+ * With a command   : executes the specified command.
+ * Via 'source'     : exports variables into the current shell (Bash only).
+EOF
+exit 1
+;;
+esac
+
+export PATH="${PREFIX}/${TARGET}/local/bin:${PREFIX}/${TARGET}/bin:${PREFIX}/bin:\$PATH"
+export GCC_EXEC_PREFIX="${PREFIX}/lib/gcc/"
+export MANPATH="${PREFIX}/${TARGET}/local/share/man:${PREFIX}/${TARGET}/share/man:${PREFIX}/share/man:\$MANPATH"
+export INFOPATH="${PREFIX}/${TARGET}/local/share/info:${PREFIX}/${TARGET}/share/info:${PREFIX}/share/info:\$INFOPATH"
+export PKG_CONFIG_LIBDIR="${PREFIX}/${TARGET}/local/lib/pkgconfig:${PREFIX}/${TARGET}/local/share/pkgconfig:${PREFIX}/${TARGET}/lib/pkgconfig:${PREFIX}/${TARGET}/share/pkgconfig"
+unset PKG_CONFIG_PATH
+STOP
+
+cat << STOP > ${BASE}/build/${TARGET}-setenv.cmd
+@echo off
+PATH=%~dp0..\\${TARGET}\\bin;%~dp0..\\bin;%PATH%
+set GCC_EXEC_PREFIX=%~dp0..\\lib\\gcc\\
+STOP
+
+case $TARGET in
+*-msdosdjgpp)
+  echo "export DJDIR=\"${PREFIX}/${TARGET}\""   >> ${BASE}/build/${TARGET}-setenv
+  echo "set DJDIR=%~dp0..\\${TARGET}"           >> ${BASE}/build/${TARGET}-setenv.cmd
+  ;;
+esac
+
+prepend_specs()
+{
+  sed -i "/\*$1:/{n;s#\(.*\)#$2 \1#}" ${BASE}/build/specs
+}
+
+if [ ! -z "$(get_version gcc)" ]; then
+  ${TARGET}-gcc -dumpspecs > ${BASE}/build/specs
+fi
+
+if [ ! -z "$(get_version watt32)" ]; then
+  WATT_ROOT="${PREFIX}/${TARGET}/watt"
+  WATT_INCLUDE="${WATT_ROOT}/inc"
+  echo "export WATT_ROOT=\"${WATT_ROOT}\"" >> ${BASE}/build/${TARGET}-setenv
+  case $(uname) in
+  MSYS*|MINGW*)
+    WATT_ROOT="$(cygpath -m "$WATT_ROOT")"
+    WATT_INCLUDE="$(cygpath -m "$WATT_INCLUDE")"
+    ;;
+  esac
+  echo "set WATT_ROOT=${WATT_ROOT}" >> ${BASE}/build/${TARGET}-setenv.cmd
+
+  for i in cpp cc1plus; do
+    prepend_specs $i "-isystem ${WATT_INCLUDE}"
+  done
+fi
+
+if [ ! -z "$(get_version gcc)" ]; then
+  for i in cpp cc1plus; do
+    prepend_specs $i "-I${PREFIX}/${TARGET}/local/include"
+  done
+  prepend_specs link "-L${PREFIX}/${TARGET}/local/lib"
+
+  echo "Installing specs file"
+  install_files ${BASE}/build/specs ${DST}/lib/gcc/${TARGET}/$(${TARGET}-gcc -dumpversion)/ || exit 1
+fi
+
+cat << STOP >> ${BASE}/build/${TARGET}-setenv
+if [ -z "\$BASH_VERSION" ] || [ "\${BASH_SOURCE[0]}" = "\$0" ]; then
+  if [ ! -z "\$1" ]; then
+    exec "\$@"
+  else
+    echo 'Entering new shell for target environment: ${TARGET}' >&2
+    exec \$SHELL
+  fi
+fi
+echo 'Environment variables set up for target: ${TARGET}' >&2
+STOP
+
+case $TARGET in
+i586-pc-msdosdjgpp) ;;
+*-pc-msdosdjgpp) cat << STOP > ${BASE}/build/${TARGET}-link-i586
+#!/usr/bin/env bash
+echo "Linking i586-pc-msdosdjgpp-* to ${TARGET}-*"
+for PROG in ${PREFIX}/bin/${TARGET}-*; do
+  ln -fs \`basename \$PROG\` \${PROG/$TARGET/i586-pc-msdosdjgpp}
+done
+STOP
+  echo "Installing ${TARGET}-link-i586"
+  chmod +x ${BASE}/build/${TARGET}-link-i586
+  install_files ${BASE}/build/${TARGET}-link-i586 ${DST}/bin/
+  ;;
+esac
+
+cat << STOP > ${BASE}/build/${TARGET}-pkg-config
+#!/usr/bin/env bash
+exec ${TARGET}-setenv pkg-config "\$@"
+STOP
+
+echo "Installing ${TARGET}-setenv"
+chmod +x ${BASE}/build/${TARGET}-setenv
+install_files ${BASE}/build/${TARGET}-setenv ${DST}/bin/
+case `uname` in
+MINGW*|MSYS*) install_files ${BASE}/build/setenv-${TARGET}.cmd ${DST}/bin/ 2> /dev/null ;;
+esac
+
+echo "Installing ${TARGET}-pkg-config"
+chmod +x ${BASE}/build/${TARGET}-pkg-config
+install_files ${BASE}/build/${TARGET}-pkg-config ${DST}/bin/
+
+if [ ! -z "$(get_version gcc)" ]; then
+  for x in $(echo $ENABLE_LANGUAGES | tr "," " ")
+  do
+    case $x in
+      c++)
+        echo "Testing C++ compiler: "
+        (${DST}/bin/${TARGET}-c++ ${BASE}/script/hello.c -o hello && echo "PASS") || echo "FAIL"
+        ;;
+      c)
+        echo "Testing C compiler: "
+        if ${DST}/bin/${TARGET}-gcc ${BASE}/script/hello.c -o hello; then
+          echo "PASS"
+        else
+          echo "FAIL"
+          exit 1
+        fi
+        ;;
+    esac
+  done
+fi
+
+echo "Done."
+echo "To remove temporary build files, use: rm -rf build/"
+echo "To remove downloaded source packages, use: rm -rf download/"
diff --git a/script/hello.c b/script/hello.c
new file mode 100644
index 00000000..6ae766ea
--- /dev/null
+++ b/script/hello.c
@@ -0,0 +1,5 @@
+#include <stdio.h>
+int main()
+{
+  printf("Hello world.\n");
+}
diff --git a/script/init.sh b/script/init.sh
new file mode 100644
index 00000000..c5edb8e8
--- /dev/null
+++ b/script/init.sh
@@ -0,0 +1,180 @@
+unset CDPATH
+unset SUDO
+unset MAKEFLAGS
+unset INSTALL
+
+umask 022
+
+BASE=`pwd`
+
+# number of parallel build threads
+if nproc > /dev/null 2>&1 ; then
+  MAKE_JOBS=${MAKE_JOBS-`nproc --all`}
+else
+  MAKE_JOBS=${MAKE_JOBS-`sysctl -n hw.physicalcpu`}
+fi
+
+# use gmake/clang under FreeBSD
+if [ `uname` = "FreeBSD" ]; then
+  MAKE=${MAKE-gmake}
+  CC=${CC-clang}
+  CXX=${CXX-clang++}
+else
+  MAKE=${MAKE-make}
+  CC=${CC-gcc}
+  CXX=${CXX-g++}
+fi
+
+MAKE_J="${MAKE} -j${MAKE_JOBS}"
+
+case `uname -s` in
+Darwin*) ;;
+*) MAKE_J+=" -Otarget" ;;
+esac
+
+export CC CXX MAKE
+
+[ ! -z ${BUILD} ] && BUILD_FLAG="--build=${BUILD}"
+if [ ! -z ${HOST} ]; then
+  HOST_FLAG="--host=${HOST}"
+  IGNORE_DEPENDENCIES=yes
+  HOST_CC=${HOST_CC-$HOST-$CC}
+  HOST_CXX=${HOST_CXX-$HOST-$CXX}
+else
+  HOST_FLAG=""
+  HOST_CC=${CC}
+  HOST_CXX=${CXX}
+fi
+
+export CFLAGS_FOR_TARGET=${CFLAGS_FOR_TARGET-"-O2 -g -ffunction-sections -fdata-sections"}
+export CXXFLAGS_FOR_TARGET=${CXXFLAGS_FOR_TARGET-"-O2 -g -ffunction-sections -fdata-sections"}
+export CFLAGS CXXFLAGS LDFLAGS
+
+# check if cp understands --preserve (for MacOS)
+if cp --preserve=mode,timestamps script/hello.c ./hello.c > /dev/null 2>&1; then
+  CP='cp --preserve=mode,timestamps'
+else
+  CP='cp'
+fi
+rm -f hello.c 2> /dev/null
+
+case $(uname) in
+MINGW*)
+  # Make sure MSYS2 Perl is used on mingw-w64 (see issue #27)
+  export PERL=/usr/bin/perl
+  # Required to build gcc on recent mingw-w64 (see issue #41)
+  GCC_EXTRA_CFLAGS+=' -DWIN32_LEAN_AND_MEAN'
+  GCC_EXTRA_CXXFLAGS+=' -DWIN32_LEAN_AND_MEAN'
+  ;;
+esac
+
+install_files()
+{
+  ${SUDO} ${CP} -R -f "$@"
+}
+
+untar()
+{
+  [ -z $1 ] && return
+  local file=$(basename $1)
+  local ext=${file##*.}
+  local param="-a"
+  case $ext in
+    xz)  param="-J" ;;
+    bz2) param="-j" ;;
+    gz)  param="-z" ;;
+    tar) param=""   ;;
+  esac
+  tar -x ${param} -f ${BASE}/download/${file} || exit 1
+}
+
+strip_whitespace() { eval "$1=\"`echo ${!1}`\""; }
+
+prepend() { eval "$1=\"$2 ${!1}\""; }
+
+uppercase() { echo "$@" | tr '[:lower:]' '[:upper:]'; }
+lowercase() { echo "$@" | tr '[:upper:]' '[:lower:]'; }
+
+get_version()
+{
+  local var=$(uppercase $1 | tr -d '_-')_VERSION
+  if [ ! -z "${!var}" ]; then
+    # Currently being installed
+    echo ${!var}
+    return
+  fi
+  local name=$(lowercase $1)
+  local version=$(cat ${PREFIX}/${TARGET}/etc/build-gcc/${name}-version 2> /dev/null)
+  if [ ! -z "${version}" ]; then
+    # Already installed
+    echo ${version}
+    return
+  fi
+  local old_version_file=$(ls ${PREFIX}/${TARGET}/etc/${name}-*-installed 2> /dev/null)
+  # Already installed, using old-style version file
+  echo $old_version_file | sed -n "s/^.*\/$name-\(.*\)-installed$/\1/p"
+}
+
+set_version()
+{
+  local name=$(lowercase $1)
+  local var=$(uppercase $1 | tr -d '_-')_VERSION
+  ${SUDO} rm -f ${PREFIX}/${TARGET}/etc/${name}-*-installed
+  ${SUDO} mkdir -p ${DST}/${TARGET}/etc/build-gcc
+  ${SUDO} sh -c "echo ${!var} > ${DST}/${TARGET}/etc/build-gcc/${name}-version"
+}
+
+unset ANY_PACKAGES_SPECIFIED
+
+add_pkg()
+{
+  for DIR in ${PACKAGE_SOURCES}; do
+    if [ -e $DIR/$1 ]; then
+      source $DIR/$1
+      ANY_PACKAGES_SPECIFIED=y
+      return
+    fi
+  done
+  echo "Unrecognized option or invalid package: $1"
+  exit 1
+}
+
+prepend      GCC_CONFIGURE_OPTIONS "$GLOBAL_CONFIGURE_OPTIONS"
+prepend      GDB_CONFIGURE_OPTIONS "$GLOBAL_CONFIGURE_OPTIONS"
+prepend BINUTILS_CONFIGURE_OPTIONS "$GLOBAL_CONFIGURE_OPTIONS"
+prepend   NEWLIB_CONFIGURE_OPTIONS "$GLOBAL_CONFIGURE_OPTIONS"
+prepend  AVRLIBC_CONFIGURE_OPTIONS "$GLOBAL_CONFIGURE_OPTIONS"
+
+for A in "$@"; do
+  case $A in
+  --no-git-reset) NO_GIT_RESET=y ;;
+  --no-download) NO_DOWNLOAD=y ;;
+  --only-download) ONLY_DOWNLOAD=y ;;
+  --ignore-dependencies) IGNORE_DEPENDENCIES=y ;;
+  --batch) BUILD_BATCH=y ;;
+  --build-deb) BUILD_DEB=y ;;
+  --destdir=*) DESTDIR=${A#*=} ;;
+  --prefix=*) PREFIX=${A#*=} ;;
+  --target=*) TARGET=${A#*=} ;;
+  --enable-languages=*) ENABLE_LANGUAGES=${A#*=} ;;
+  *) add_pkg $A ;;
+  esac
+done
+
+if [ -z "${ANY_PACKAGES_SPECIFIED}" ]; then
+  echo "Usage: $0 [options...] [packages...]"
+  echo "Commonly used options:"
+  echo "    --prefix=[...]"
+  echo "    --target=[...]"
+  echo "    --enable-languages=[...]"
+  echo "Available packages:"
+  find ${PACKAGE_SOURCES} -type f | xargs -n 1 basename | sort -u | column
+  exit 1
+fi
+
+# install directory
+PREFIX=${PREFIX-/usr/local/cross}
+
+# enabled languages
+#ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,lto,f95,objc,obj-c++}
+ENABLE_LANGUAGES=${ENABLE_LANGUAGES-c,c++,lto}
diff --git a/script/select-script.sh b/script/select-script.sh
new file mode 100755
index 00000000..1fece6d3
--- /dev/null
+++ b/script/select-script.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -e
+
+case $TARGET in
+*-msdosdjgpp) SCRIPT=./build-djgpp.sh ;;
+ia16*)        SCRIPT=./build-ia16.sh ;;
+avr)          SCRIPT=./build-avr.sh ;;
+*)            SCRIPT=./build-newlib.sh ;;
+esac
+
+${SCRIPT} --batch --target=${TARGET} ${PACKAGES} "$@"
diff --git a/test-zlib.c b/script/test-zlib.c
similarity index 100%
rename from test-zlib.c
rename to script/test-zlib.c
diff --git a/script/unpack-build-binutils.sh b/script/unpack-build-binutils.sh
new file mode 100644
index 00000000..2e00156f
--- /dev/null
+++ b/script/unpack-build-binutils.sh
@@ -0,0 +1,21 @@
+cd ${BASE}/build/ || exit 1
+
+if [ ! -z ${BINUTILS_VERSION} ]; then
+  if [ ! -e binutils-${BINUTILS_VERSION}/binutils-unpacked ]; then
+    echo "Unpacking binutils..."
+    untar ${BINUTILS_ARCHIVE} || exit 1
+
+    cd binutils-${BINUTILS_VERSION}/ || exit 1
+    case ${BINUTILS_VERSION} in
+    2.33.1) patch libctf/swap.h ${BASE}/patch/patch-binutils-2.33.1-swap.txt || exit 1 ;;
+    2.34)   patch libctf/swap.h ${BASE}/patch/patch-binutils-2.34-swap.txt || exit 1 ;;
+    esac
+    cat ${BASE}/patch/binutils-${BINUTILS_VERSION}/* | patch -p1 -u || exit 1
+
+    touch binutils-unpacked
+  else
+    cd binutils-${BINUTILS_VERSION}/ || exit 1
+  fi
+
+  source ${BASE}/script/build-binutils.sh
+fi
diff --git a/setenv/copyfile.sh b/setenv/copyfile.sh
deleted file mode 100755
index 7fb8d724..00000000
--- a/setenv/copyfile.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/usr/bin/env bash
-if [ -z $1 ]; then
-  echo "Missing target directory."
-  exit 1
-fi
-
-echo "Copy setenv script"
-cp setenv $1/
-if uname|grep "^MINGW" > /dev/null; then
-  cp setenv.bat $1/
-elif uname|grep "^CYGWIN" > /dev/null; then
-  cp setenv.bat $1/
-fi
diff --git a/setenv/setenv b/setenv/setenv
deleted file mode 100644
index 1b1b878f..00000000
--- a/setenv/setenv
+++ /dev/null
@@ -1,3 +0,0 @@
-export PATH="$(cd "$(dirname "$0")"; pwd)"/i586-pc-msdosdjgpp/bin/:"$(cd "$(dirname "$0")"; pwd)"/bin/:$PATH
-export GCC_EXEC_PREFIX="$(cd "$(dirname "$0")"; pwd)"/lib/gcc/
-export DJDIR="$(cd "$(dirname "$0")"; pwd)"/i586-pc-msdosdjgpp
diff --git a/setenv/setenv.bat b/setenv/setenv.bat
deleted file mode 100644
index 044a9b3e..00000000
--- a/setenv/setenv.bat
+++ /dev/null
@@ -1,4 +0,0 @@
-@echo off
-PATH=%~dp0i586-pc-msdosdjgpp\bin;%~dp0bin;%PATH%
-set GCC_EXEC_PREFIX=%~dp0lib\gcc\
-set DJDIR=%~dp0i586-pc-msdosdjgpp