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configure.ac
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configure.ac
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#############################################################################
# Copyright (c) 2016 Balabit
#
# 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.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# As an additional exemption you are allowed to compile & link against the
# OpenSSL libraries as published by the OpenSSL project. See the file
# COPYING for details.
#
#############################################################################
dnl Process this file with autoconf to produce a configure script.
dnl
dnl There are a couple of environment defined variables which this script
dnl makes use of in addition to the standard CFLAGS/LDFLAGS/etc. These are:
dnl
dnl RELEASE_TAG - Debian release tag which is put to debian/changelog
dnl SNAPSHOT_VERSION - snapshot version to add to version number
dnl BINARY_BRANCH - the value is added to all source/binary packages
dnl SOURCE_REVISION - Revision of the source-tree, will added to the version string
dnl
AC_INIT([syslog-ng], m4_esyscmd_s([scripts/version.sh]))
AC_CONFIG_SRCDIR([syslog-ng/main.c])
AC_CONFIG_MACRO_DIR([m4])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
dnl ***************************************************************************
dnl dependencies
GLIB_MIN_VERSION="2.32"
OPENSSL_MIN_VERSION="0.9.8"
LIBDBI_MIN_VERSION="0.9.0"
LIBRABBITMQ_MIN_VERSION="0.5.3"
LIBRDKAFKA_MIN_VERSION="1.1.0"
IVYKIS_MIN_VERSION="0.36.1"
IVYKIS_UPDATED_VERSION="0.39"
JSON_C_MIN_VERSION="0.13"
PCRE2_MIN_VERSION="10.0"
LMC_MIN_VERSION="1.0.0"
LRMQ_MIN_VERSION="0.0.1"
LRC_MIN_VERSION="1.6.0"
LIBBPF_MIN_VERSION="1.0.1"
JOURNALD_MIN_VERSION="195"
LIBSYSTEMD_MIN_VERSION="209"
LIBSYSTEMD_WITH_JOURNAL_NAMESPACES_MIN_VERSION="245"
JAVA_MIN_VERSION="1.8"
GRADLE_MIN_VERSION="3.4"
HIREDIS_MIN_VERSION="0.11.0"
CRITERION_MIN_VERSION="2.2.1"
PROTOBUF_MIN_VERSION="3.12.0"
GRPCPP_MIN_VERSION="1.16.1"
dnl ***************************************************************************
dnl Initial setup
ostype=`uname -s`
if test -r $srcdir/dist.conf; then
# read defaults, dist.conf does not change
# values for parameters that are already set
. $srcdir/dist.conf
fi
if test -z "$RELEASE_TAG"; then
RELEASE_TAG=unstable
fi
if test "`uname -s`" = "Linux";then
CURRDATE=`date -R`
else
CURRDATE=`date +"%a, %d %b %Y %H:%M:%S %Z"`
fi
AM_INIT_AUTOMAKE([foreign no-define subdir-objects])
_AM_PROG_TAR([ustar])
if test -n "$SNAPSHOT_VERSION"; then
PACKAGE_VERSION=$PACKAGE_VERSION+$SNAPSHOT_VERSION
fi
dnl ***************************************************************************
dnl script snippet to generate user friendly version strings according to the
dnl new versioning policy. All needed code are here to allow easy moving
dnl between projects.
if test -z "$RELEASE_TYPE"; then
RELEASE_TYPE=stable
fi
if test -z "$BROCHURE_VERSION"; then
_MAJOR=`echo $VERSION | cut -f1 -d'.'`
_MINOR=`echo $VERSION | cut -f2 -d'.'`
case "$RELEASE_TYPE" in
stable) BROCHURE_VERSION="$_MAJOR";;
feature) BROCHURE_VERSION="$_MAJOR F$_MINOR";;
*) BROCHURE_VERSION="$VERSION dogfood edition. Please contact your syslog-ng release manager to fix the configure scritpt";;
esac
fi
if test -z "$COMBINED_VERSION"; then
COMBINED_VERSION="$BROCHURE_VERSION ($VERSION)"
fi
TECHNICAL_VERSION=$VERSION
AC_DEFINE_UNQUOTED(RELEASE_TYPE, "$RELEASE_TYPE", [type of syslog-ng release. stable or feature])
AC_DEFINE_UNQUOTED(BROCHURE_VERSION, "$BROCHURE_VERSION", [pretty version for users depends on the release type])
AC_DEFINE_UNQUOTED(COMBINED_VERSION, "$COMBINED_VERSION", [normal and brochure version combined])
AC_DEFINE_UNQUOTED(SOURCE_REVISION, "$SOURCE_REVISION", [source revision])
AC_SUBST(RELEASE_TYPE)
AC_SUBST(BROCHURE_VERSION)
AC_SUBST(COMBINED_VERSION)
AC_SUBST(TECHNICAL_VERSION)
dnl ***************************************************************************
if test "x$prefix" = "xNONE"; then
prefix=$ac_default_prefix
fi
if test "x$exec_prefix" = "xNONE"; then
exec_prefix='${prefix}'
fi
pidfiledir='${localstatedir}'
moduledir='${exec_prefix}/lib/syslog-ng'
loggenplugindir='${moduledir}/loggen'
python_venvdir='${localstatedir}/python-venv'
toolsdir='${datadir}/syslog-ng/tools'
xsddir='${datadir}/syslog-ng/xsd'
config_includedir='${datadir}/syslog-ng/include'
scldir="${config_includedir}/scl"
abs_topsrcdir=`(cd $srcdir && pwd)`
AC_CONFIG_HEADERS(config.h)
dnl ***************************************************************************
dnl Arguments
AC_ARG_WITH(libnet,
[ --with-libnet=path use path to libnet-config script],
,
[with_libnet=""])
AC_ARG_WITH(net-snmp,
[ --with-net-snmp=path use path to net-snmp-config script],
,
[with_net_snmp=""])
AC_ARG_WITH(pidfile-dir,
[ --with-pidfile-dir=path Use path as the directory for storing pidfiles],
pidfiledir=$with_pidfile_dir)
AC_ARG_WITH(module-dir,
[ --with-module-dir=path Use path as the directory to install modules into],
moduledir=$with_module_dir)
AC_ARG_WITH(loggen-plugin-dir,
[ --with-loggen-plugin-dir=path Use path as the directory to install loggen plugins into],
loggenplugindir=$with_loggen_plugin_dir)
AC_ARG_WITH(python-venv-dir,
[ --with-python-venv-dir=path Use path as the directory to install the Python venv into],
python_venvdir=$with_python_venv_dir)
AC_ARG_WITH(module-path,
[ --with-module-path=path Use path as the list of ':' separated directories looked up when searching for modules],
module_path=$with_module_path)
AC_ARG_WITH(timezone-dir,
[ --with-timezone-dir=path Use path as the directory to get the timezone files],
timezonedir=$with_timezone_dir)
AC_ARG_WITH(ld-library-path,
[ --with-ld-library-path=path Set LD_LIBRARY_PATH during runtime to the value given],
env_ld_library_path=$with_ld_library_path)
AC_ARG_WITH([systemdsystemunitdir],
AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]))
AC_ARG_WITH(package_name,
[ --with-package-name=package name Package name is printed out when syslog-ng started with --version],
PACKAGE_NAME=$with_package_name)
AC_ARG_ENABLE(forced_server_mode,
[ --enable-forced-server-mode Enable forced server mode.],, enable_forced_server_mode="yes")
AC_ARG_ENABLE(debug,
[ --enable-debug Enable debugging code.],, enable_debug="no")
AC_ARG_ENABLE(example-modules,
[ --enable-example-modules Enable example modules.],, enable_example_modules="yes")
AC_ARG_ENABLE(force_gnu99,
[ --enable-force-gnu99 Enforce C99 with gnu extensions.],, force_gnu99="no")
AC_ARG_ENABLE(extra-warnings,
[ --enable-extra-warnings Enable extra compiler warnings (recommended).],, enable_extra_warnings="no")
AC_ARG_ENABLE(env-wrapper,
[ --enable-env-wrapper Enable wrapper program to set up various environment variables],, enable_env_wrapper=auto)
AC_ARG_ENABLE(gprof,
[ --enable-gprof Enable gcc profiling.],, enable_gprof="no")
AC_ARG_ENABLE(memtrace,
[ --enable-memtrace Enable alternative leak debugging code.])
AC_ARG_WITH(sanitizer,
[ --with-sanitizer=[address/undefined/etc...]
Enables compiler sanitizer supports (default: no)]
,,with_sanitizer="no")
AC_ARG_ENABLE(dynamic-linking,
[ --enable-dynamic-linking Link everything dynamically.],,enable_dynamic_linking="auto")
AC_ARG_ENABLE(mixed-linking,
[ --enable-mixed-linking Link 3rd party libraries statically, system libraries dynamically],,enable_mixed_linking="auto")
AC_ARG_ENABLE(force-classic-linking,
[ --enable-force-classic-linking Link using ld-classic (default: no)],, enable_force_classic_linking="no")
AC_ARG_ENABLE(ipv6,
[ --enable-ipv6 Enable support for IPv6.],,enable_ipv6="auto")
AC_ARG_ENABLE(tcp-wrapper,
[ --enable-tcp-wrapper Enable support for TCP wrappers.],,enable_tcp_wrapper="auto")
AC_ARG_ENABLE(spoof-source,
[ --enable-spoof-source Enable support for spoofed source addresses.]
,,enable_spoof_source="auto")
AC_ARG_ENABLE(sun-streams,
[ --enable-sun-streams Enable support for Solaris /dev/log STREAMS device.]
,,enable_sun_streams="auto")
AC_ARG_ENABLE(darwin-osl,
[ --enable-darwin-osl Enable support for Darwin OS Log source. (default: auto)]
,,enable_darwin_osl="auto")
AC_ARG_ENABLE(openbsd-system-source,
[ --enable-openbsd-system-source Enable support for OpenBSD /dev/klog device.]
,,enable_openbsd_system_source="auto")
AC_ARG_ENABLE(sql,
[ --enable-sql Enable support for SQL destinations. (default: auto)]
,,enable_sql="auto")
AC_ARG_ENABLE(pacct,
[ --enable-pacct Enable support for reading Process Accounting files (EXPERIMENTAL, Linux only).]
,,enable_pacct="no")
AC_ARG_ENABLE(linux-caps,
[ --enable-linux-caps Enable support for managing Linux capabilities (default: auto)]
,,enable_linux_caps="auto")
AC_ARG_ENABLE(ebpf,
[ --enable-ebpf Enable support for loading of eBPF programs (default: no)]
,,enable_ebpf="no")
AC_ARG_ENABLE(gcov,
[ --enable-gcov Enable coverage profiling (default: no)]
,,enable_gcov="no")
AC_ARG_ENABLE(mongodb,
[ --enable-mongodb Enable mongodb destination (default: auto)]
,,enable_mongodb="auto")
AC_ARG_WITH(jsonc,
[ --with-jsonc=[yes/no]
Link against the system supplied jsonc library or explicitly disable it. (default: yes)]
,,with_jsonc="yes")
AC_ARG_ENABLE(json,
[ --enable-json=[yes/no] Enable JSON support (default: yes)]
,[if test "x$enableval" != "xno"; then with_jsonc="system"; else with_jsonc="no"; fi],)
AC_ARG_ENABLE(amqp,
[ --enable-amqp Enable amqp destination (default: auto)]
,,enable_amqp="auto")
AC_ARG_ENABLE(stomp,
[ --enable-stomp Enable stomp destination (default: yes)]
,,enable_stomp="yes")
AC_ARG_WITH(ivykis,
[ --with-ivykis=[system/internal]
Link against the system supplied or the built-in ivykis library.]
,,with_ivykis="internal")
AC_ARG_ENABLE(smtp,
[ --disable-smtp Disable SMTP support (default: auto)]
,,enable_smtp="auto")
AC_ARG_WITH(libesmtp,
AC_HELP_STRING([--with-libesmtp=DIR],
[use libesmtp library from (prefix) directory DIR]),,)
AC_ARG_ENABLE(mqtt,
[ --disable-mqtt Disable MQTT support (default: auto)]
,,enable_mqtt="auto")
AC_ARG_WITH(libpaho-mqtt,
AC_HELP_STRING([--with-libpaho-mqtt=DIR],
[use libpaho-mqtt library from (prefix) directory DIR]),,)
AC_ARG_ENABLE(grpc,
[ --enable-grpc Enable GRPC based modules support (OpenTelemetry, Loki, BigQuery) (default: auto)]
,,enable_grpc="auto")
AC_ARG_WITH(protoc,
AC_HELP_STRING([--with-protoc=PATH],
[use protoc binary at PATH]),,)
AC_ARG_WITH(protoc_gen_grpc_cpp_plugin,
AC_HELP_STRING([--with-protoc-gen-grpc-cpp-plugin=PATH],
[use protoc-gen-grpc-cpp plugin at PATH]),,)
AC_ARG_ENABLE(cloud_auth,
[ --enable-cloud-auth Enable cloud authentication methods (GCP) (default: auto)]
,,enable_cloud_auth="auto")
AC_ARG_ENABLE(cpp,
[ --enable-cpp Enable C++ support (default: auto)]
,,enable_cpp="auto")
AC_ARG_ENABLE(http,
[ --disable-http Disable http support (default: auto)]
,,enable_http="auto")
AC_ARG_WITH(libcurl,
AC_HELP_STRING([--with-libcurl=DIR],
[use libcurl library from (prefix) directory DIR]),,)
AC_ARG_ENABLE(redis,
[ --disable-redis Disable REDIS support (default: auto)]
,,enable_redis="auto")
AC_ARG_WITH(libhiredis,
AC_HELP_STRING([--with-libhiredis=DIR],
[use libhiredis library from (prefix) directory DIR]),,)
AC_ARG_ENABLE(systemd,
[ --enable-systemd Enable systemd support (default: auto)]
,,enable_systemd="auto")
AC_ARG_ENABLE(geoip2,
[ --enable-geoip2 Enable GeoIP2 support (default: auto)]
,,enable_geoip2="auto")
AC_ARG_ENABLE(riemann,
[ --disable-riemann Disable riemann destination]
,,enable_riemann="auto")
AC_ARG_WITH(compile-date,
[ --without-compile-date Do not include the compile date in the binary]
,wcmp_date="${withval}", wcmp_date="yes")
AC_ARG_WITH(systemd-journal,
[ --with-systemd-journal=[system/optional/auto]
Link against the system supplied or the wrapper library. (default: auto)]
,,with_systemd_journal="auto")
AC_ARG_ENABLE(kafka,
[ --enable-kafka Enable rdkafka support]
,,enable_kafka="auto")
AC_ARG_ENABLE(python,
[ --disable-python Disable Python module]
,,enable_python="auto")
AC_ARG_ENABLE(python-modules,
[ --disable-python-modules Disable Python based syslog-ng addons while installing the core Python modules]
,,enable_python_modules="auto")
AC_ARG_WITH(python,
[ --with-python=VERSION Build with a specific version of python]
,,with_python="auto")
AC_ARG_WITH(python-packages,
[ --with-python-packages=[system|venv|none] Use Python packages from the system or a private virtualenv or skip their installation (default: venv)]
,,with_python_packages="venv")
AC_ARG_WITH(python3-home,
[ --with-python3-home=path Use path as a hard-coded Python home directory that can not be overwritten by the PYTHONHOME environment variable],
python3_home_dir=$with_python3_home)
AC_ARG_WITH(pylint,
[ --with-pylint=ABSOLUTE_PATH Specify pylint location])
AC_ARG_WITH(docbook,
[ --with-docbook=FILE Compiling manpages using docbook in the specified path, if not set, it will be searched on the system, or online version will be used from http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl]
,,with_docbook="auto")
AC_ARG_ENABLE(manpages, AC_HELP_STRING([ --enable-manpages], [ Enable generation of manpages (default: no)]), , [enable_manpages="no"; XSL_STYLESHEET=""])
AC_ARG_ENABLE(manpages-install, AC_HELP_STRING([ --enable-manpages-install], [ Enable installation of manpages (default: auto)]), , [enable_manpages_install="auto"])
AC_ARG_ENABLE(java, [ --enable-java Enable java destination (default: auto)],, enable_java="auto")
AC_ARG_ENABLE(java-modules, [ --enable-java-modules Compile all Java modules (default: auto)],, enable_java_modules="auto")
AC_ARG_ENABLE(native,
[ --enable-native Enable native bindings (default: auto)]
,,enable_native="auto")
AC_ARG_ENABLE(afsnmp, [ --enable-afsnmp Enable afsnmp module (default: auto)],, enable_afsnmp="auto")
AC_ARG_ENABLE(all-modules,
[ --enable-all-modules Forcibly enable all modules. (default: auto)]
,,enable_all_modules="auto")
if test "x$enable_all_modules" != "xauto"; then
state="$enable_all_modules"
MODULES="spoof_source sun_streams sql pacct mongodb json amqp stomp \
redis systemd geoip2 riemann ipv6 smtp native python python_modules java java_modules \
http afsnmp kafka mqtt grpc"
for mod in ${MODULES}; do
modstate=$(eval echo \$enable_${mod})
if test "x$modstate" = "xauto"; then
eval enable_${mod}=${state}
fi
done
fi
if test "x$wcmp_date" != "xno"; then
wcmp_date="1"
else
wcmp_date="0"
fi
patheval()
{
OLD=$1
NEW=`eval echo $1`
while test "x$OLD" != "x$NEW"
do
OLD=$NEW
NEW=`eval echo $OLD`
done
echo $OLD
}
dnl ***************************************************************************
dnl Checks for programs.
# Do not mix the used compilers or you might have to deal with further libtool issues
# Currently syslog-ng and all modules can be compiled like
# | Comoiler | C | C++ | ObjC |
# -------------------------------
# | gcc | x | x | - |
# -------------------------------
# | clang | x | x | x |
# -------------------------------
# | g++ | n/a | x | n/a | (NOTE: g++ fails on C99 compilant test bellow)
# -------------------------------
#
AC_PROG_CC
AC_PROG_CC_C99
AM_PROG_CC_C_O
if test "x$ac_cv_prog_cc_c99" = "xno"; then
AC_MSG_ERROR([C99 standard compliant C compiler required. Try GCC 3.x or later.])
fi
# Turned out that even the latest gcc has no proper support of the required ObjC version
# Once gcc was able to compile our ObjC modules properly this could be reverted to AC_PROG_OBJC([$OBJC $CC])
AC_PROG_OBJC([$OBJC clang])
AC_PROG_YACC
AM_PROG_LEX
AM_MISSING_PROG([GPERF], [gperf])
AC_PROG_MAKE_SET
PKG_PROG_PKG_CONFIG
LT_INIT([dlopen disable-static])
if test "x$with_python" = "xauto"; then
AM_PATH_PYTHON(,,[:])
else
AM_PATH_PYTHON([$with_python],,[:])
fi
if test "${PYTHON}" = ":"; then
AC_MSG_WARN([Python interpreter is missing.])
fi
AM_CONDITIONAL([HAVE_PYTHON_INTERPRETER], [test "$PYTHON" != :])
dnl ***************************************************************************
dnl C++
# This one is useful for checking the available compilers
# AC_MSG_RESULT(gcc = $(which gcc) - g++ = $(which g++) - clang = $(which clang))
# AC_MSG_RESULT(Paths: gcc = $(ls -Al $(which gcc)) - g++ = $(ls -Al $(which g++)) - clang = $(ls -Al $(which clang)))
# AC_MSG_RESULT($(gcc -v))
# AC_MSG_RESULT($(g++ -v))
# AC_MSG_RESULT($(clang -v))
# AC_MSG_RESULT(C++ compilers to be used $CPP_COMPILER)
AC_PROG_CXX([$CPP_COMPILER])
if test "x$enable_cpp" = "xyes"; then
AX_CXX_COMPILE_STDCXX(11,, mandatory)
AX_CXX_COMPILE_STDCXX(17,, optional)
elif test "x$enable_cpp" = "xauto"; then
AX_CXX_COMPILE_STDCXX(11,, optional)
if test "x$HAVE_CXX11" = "x1"; then
enable_cpp=yes
else
enable_cpp=no
fi
AX_CXX_COMPILE_STDCXX(17,, optional)
fi
dnl ***************************************************************************
dnl Validate yacc
yacc_ok=0
if echo "$YACC" | grep -q bison; then
# NOTE: m4 removes [], that's why it needs to be escaped
bison_version=`$YACC --version | head -n 1 | sed 's/@<:@^0-9.@:>@*//'`
bison_version_major=`echo $bison_version | cut -d. -f1`
bison_version_minor=`echo $bison_version | cut -d. -f2`
bison_version_patch=`echo $bison_version | cut -d. -f3`
if ([[ "$bison_version_major" -gt 3 ]]) ||
([[ "$bison_version_major" -eq 3 ]] && [[ "$bison_version_minor" -gt 7 ]]) ||
([[ "$bison_version_major" -eq 3 ]] && [[ "$bison_version_minor" -eq 7 ]] && [[ "$bison_version_patch" -ge 6 ]]); then
yacc_ok=1
else
AC_MSG_WARN([bison is found, but your bison version $bison_version is not recent enough, at least 3.7.6 is required])
fi
fi
if test $yacc_ok = 0; then
if test -f $srcdir/lib/cfg-grammar.c || test -f lib/cfg-grammar.c; then
AC_MSG_WARN([No proper bison found, you'll not be able to change lib/cfg-grammar.y])
YACC="echo Required bison not found && false"
else
AC_MSG_ERROR([syslog-ng requires bison 3.7.6 or later. Your source tree seems to be from git, which doesn't have the bison generated files (like cfg-grammar.c). Please install/upgrade bison or use a distribution tarball.])
fi
fi
dnl ***************************************************************************
dnl Validate flex
if $LEX --version | grep "flex" >/dev/null; then
lex_ok=1
else
lex_ok=0
fi
if test $lex_ok = 0 ; then
if test -f $srcdir/lib/cfg-lex.c || test -f lib/cfg-lex.c; then
AC_MSG_WARN([No flex found, you'll not be able to change lib/cfg-lex.l])
LEX="echo Required flex version not found && false"
else
AC_MSG_ERROR([syslog-ng requires flex in order to generate its config lexer. Your source tree seems to be from git, which doesn't have lib/cfg-lex.c. Please install flex or use a distribution tarball.])
fi
fi
dnl ***************************************************************************
dnl Set up NO_PIE_LDFLAG: -no-pie is compatible with $CC.
AX_COMPILER_VENDOR
AX_COMPILER_VERSION
if test $ostype = "Darwin"; then
no_pie_ldflags="-Wl,-no_pie"
else
if test x$ax_cv_c_compiler_vendor = "xgnu"; then
AX_COMPARE_VERSION($ax_cv_c_compiler_version, gt, [4.5], [no_pie_ldflags="-no-pie"], [no_pie_ldflags=""])
else
no_pie_ldflags="-no-pie"
fi;
fi
old_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $no_pie_ldflags"
AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) {return 0;}])],
[no_pie_option_available=yes],
[no_pie_option_available=no])
LDFLAGS="$old_LDFLAGS"
if test "$no_pie_option_available" = "yes"; then
NO_PIE_LDFLAG="$no_pie_ldflags"
fi
AC_SUBST([NO_PIE_LDFLAG])
dnl ***************************************************************************
dnl Set up CFLAGS
dnl The rest of CFLAGS. We produce
dnl -g/-O2/-pg/-fprofile-arcs/-ftest-coverage combinations, the rest is
dnl supplied by Makefile.am
if test "x$ac_compiler_gnu" = "xyes"; then
# by ignoring the existing $CFLAGS setting we can override the
# default supplied by autoconf (which defaults to -O2), which
# we don't want to use with our debugging builds.
CFLAGS_ADD="-fno-omit-frame-pointer"
CXXFLAGS_ADD="-fno-omit-frame-pointer"
if test "x$enable_debug" = "xyes"; then
CFLAGS_ADD="${CFLAGS_ADD} -g"
CXXFLAGS_ADD="${CXXFLAGS_ADD} -g"
else
CFLAGS_ADD="${CFLAGS_ADD} -O2 -g"
CXXFLAGS_ADD="${CXXFLAGS_ADD} -O2 -g"
fi
if test "x$enable_gprof" = "xyes"; then
CFLAGS_ADD="${CFLAGS_ADD} -pg"
CXXFLAGS_ADD="${CXXFLAGS_ADD} -pg"
fi
if test "x$enable_gcov" = "xyes"; then
CFLAGS_ADD="${CFLAGS_ADD} -fprofile-arcs -ftest-coverage"
CXXFLAGS_ADD="${CXXFLAGS_ADD} -fprofile-arcs -ftest-coverage"
fi
else
enable_extra_warnings="no"
fi
CFLAGS_ADD="${CFLAGS_ADD} -pthread"
dnl The current supported standard is C99 with gnu extensions
if test "x$force_gnu99" = "xyes"; then
CFLAGS_ADD="${CFLAGS_ADD} -std=gnu99"
fi
dnl We are checking for the postive warning flag, as gcc handles the
dnl -Wno-XXX version oddly, so if no other warnings are present, it is not
dnl reported at all, causing it to be unusable for detection purposes.
AX_CFLAGS_GCC_OPTION(-Winitializer-overrides, CFLAGS_W_INITIALIZER_OVERRIDES, CFLAGS_W_NO_INITIALIZER_OVERRIDES="-Wno-initializer-overrides")
AX_CFLAGS_GCC_OPTION(-Wold-style-declaration, CFLAGS_W_OLD_STYLE_DECLARATION)
AC_SUBST(CFLAGS_W_NO_INITIALIZER_OVERRIDES)
AC_SUBST(CFLAGS_W_OLD_STYLE_DECLARATION)
dnl User supplied CFLAGS come last
CFLAGS="${CFLAGS_ADD} ${ac_cv_env_CFLAGS_value}"
CXXFLAGS="${CXXFLAGS_ADD} ${ac_cv_env_CXXFLAGS_value}"
TEST_NO_INSTALL_FLAG="-no-install"
AC_SUBST(TEST_NO_INSTALL_FLAG)
AC_SYS_LARGEFILE
# FIXME: skip tests on unsupported platforms/architectures...
case "$ostype" in
HP-UX)
if $CC -v 2>&1 | grep gcc > /dev/null; then
CFLAGS="${CFLAGS} -U_XOPEN_SOURCE -U_XOPEN_SOURCE_EXTENDED -D_HPUX_SOURCE"
LDFLAGS="${LDFLAGS} -lcl"
AC_DEFINE(HAVE_BROKEN_PREAD, 1, [define if your platform has a broken pread/pwrite (e.g. HP-UX)])
AC_MSG_WARN([NOTE: on HP-UX with gcc, you might need to edit sys/socket.h manually or you'll get compilation errors])
fi
;;
AIX)
if test "$ac_cv_sys_large_files" -ne 0; then
CFLAGS="${CFLAGS} -D_LARGE_FILES=1"
fi
# NOTE: The -brtl option to the linker must be set before calling the
# configure script, as otherwise the generated libtool will behave
# differently. We need the runtime linker during execution (hence the
# -brtl) to load external modules. Also, please note that with -brtl the
# linker behaves similarly to what is expected on other UNIX systems,
# without it, it refuses to link an .so in if there's no reference from
# the main program, even if there is a proper -llibname option.
LDFLAGS="$LDFLAGS -Wl,-brtl"
MODULE_LDFLAGS="-avoid-version -module"
;;
Darwin)
MODULE_LDFLAGS="-avoid-version -dylib"
TEST_NO_INSTALL_FLAG="-no-fast-install"
# This flag might be a security issue, do not use in production code, unfortunately we still need it for criterion tests and the current mocking solution
if test "x$enable_tests" = "xyes"; then
LDFLAGS="$LDFLAGS -Wl,-flat_namespace"
fi
# NOTE: This is now seems to be an Apple/Xcode "only" issue, but probably much better a clang one, so later we might want to add this globally
# XCode15 new linker has some issues (e.g. https://developer.apple.com/forums/thread/737707)
# switch back to classic linking till not fixed (https://developer.apple.com/documentation/xcode-release-notes/xcode-15-release-notes#Linking)
if test "x$enable_force_classic_linking" = "xyes"; then
LDFLAGS="$LDFLAGS -Wl,-ld_classic"
fi
CFLAGS="$CFLAGS -D__APPLE_USE_RFC_3542"
;;
OSF1)
CFLAGS="${CFLAGS} -D_XOPEN_SOURCE=500 -D_XOPEN_SOURCE_EXTENDED -D_OSF_SOURCE -D_POSIX_C_SOURCE"
;;
esac
if test "$enable_dynamic_linking" = "auto" -a "$enable_mixed_linking" = "auto"; then
enable_dynamic_linking="yes"
enable_mixed_linking="no"
fi
linkopts=0
if test "x$enable_dynamic_linking" = "xyes"; then
linkopts=`expr $linkopts + 1`
fi
if test "x$enable_mixed_linking" = "xyes"; then
linkopts=`expr $linkopts + 1`
fi
if test "$linkopts" -gt 1; then
AC_MSG_ERROR([You cannot specify multiple linking options at the same time (--enable-dynamic-linking, --enable-mixed-linking).])
fi
if test "x$enable_dynamic_linking" = "xyes"; then
enable_dynamic_linking="yes"
enable_mixed_linking="no"
linking_mode="dynamic"
elif test "x$enable_mixed_linking" = "xyes"; then
enable_dynamic_linking="no"
enable_mixed_linking="yes"
linking_mode="mixed"
fi
dnl ***************************************************************************
dnl Check for --whole-archive flag
dnl ***************************************************************************
if test $ostype = "Darwin"; then
# -all_load loads all members of static archive libraries, it can't be selectively disabled (do not use -noall_load)
# use -force_load for each static library if mixed linking needs to be supported on macOS
WHOLE_ARCHIVE_OPT="-all_load"
NO_WHOLE_ARCHIVE_OPT=""
else
WHOLE_ARCHIVE_OPT="--whole-archive"
NO_WHOLE_ARCHIVE_OPT="--no-whole-archive"
fi
dnl ***************************************************************************
dnl Is the __thread keyword available?
dnl ***************************************************************************
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <pthread.h>
__thread int a;
]],
[a=0;])],
[ac_cv_have_tls=yes; AC_DEFINE_UNQUOTED(HAVE_THREAD_KEYWORD, 1, "Whether Thread Local Storage is supported by the system")])
dnl ***************************************************************************
dnl How to do static linking?
dnl ***************************************************************************
AC_MSG_CHECKING(how to enable static linking for certain libraries)
ldversion=`ld -V 2>&1 | head -n 1`
if echo $ldversion | egrep "GNU|Solaris" > /dev/null; then
LD_START_STATIC="-Wl,-Bstatic"
LD_END_STATIC="-Wl,-Bdynamic"
AC_MSG_RESULT(GNU or Solaris)
elif test $ostype = "HP-UX" > /dev/null; then
LD_START_STATIC="-Wl,-a,archive"
LD_END_STATIC="-Wl,-a,shared_archive"
AC_MSG_RESULT(HP-UX)
elif test "$ostype" = "AIX"; then
LD_START_STATIC="-Wl,-bstatic"
LD_END_STATIC="-Wl,-bdynamic"
AC_MSG_RESULT(AIX)
else
LD_START_STATIC=""
LD_END_STATIC=""
AC_MSG_RESULT([no clues, linking everything dynamically, please send appropriate ld arguments to syslog-ng@lists.balabit.hu])
fi
dnl ***************************************************************************
dnl Miscellanneous headers
dnl ***************************************************************************
AC_HEADER_STDC
AC_CHECK_HEADER(dmalloc.h)
AC_CHECK_HEADER(dlfcn.h)
AC_CHECK_HEADERS(strings.h \
getopt.h \
stropts.h \
sys/strlog.h \
door.h \
sys/capability.h \
sys/prctl.h \
linux/sock_diag.h \
utmp.h \
utmpx.h)
AC_CHECK_HEADERS(tcpd.h)
AC_CHECK_TYPES([struct ucred, struct cmsgcred], [], [], [#define _GNU_SOURCE 1
#define _DEFAULT_SOURCE 1
#include <sys/types.h>
#include <sys/socket.h>])
dnl ***************************************************************************
dnl Header checks
dnl ***************************************************************************
dnl Checks for typedefs, structures, and compiler characteristics.
AC_STRUCT_TM
AC_CHECK_MEMBER(struct tm.tm_gmtoff,AC_DEFINE(HAVE_STRUCT_TM_TM_GMTOFF,1,[Whether you have tm_gmtoff field in struct tm]),,[
#if TM_IN_SYS_TIME
#include <sys/time.h>
#else
#include <time.h>
#endif])
AC_CHECK_MEMBER(struct msghdr.msg_control,AC_DEFINE(HAVE_CTRLBUF_IN_MSGHDR,1,[Whether you have msg_control field in msghdr in socket.h]),,[
#include <sys/socket.h>
])
AC_CACHE_CHECK(for I_CONSLOG, blb_cv_c_i_conslog,
[AC_EGREP_CPP(I_CONSLOG,
[
#include <sys/strlog.h>
I_CONSLOG
],
blb_cv_c_i_conslog=no, blb_cv_c_i_conslog=yes)])
old_CPPFLAGS=$CPPFLAGS
CPPFLAGS="-D_GNU_SOURCE -D_DEFAULT_SOURCE"
AC_CACHE_CHECK(for O_LARGEFILE, blb_cv_c_o_largefile,
[AC_EGREP_CPP(O_LARGEFILE,
[
#include <fcntl.h>
O_LARGEFILE
],
blb_cv_c_o_largefile=no, blb_cv_c_o_largefile=yes)])
CPPFLAGS=$old_CPPFLAGS
if test "x$blb_cv_c_o_largefile" = "xyes"; then
AC_DEFINE(HAVE_O_LARGEFILE, 1, [O_LARGEFILE is present])
fi
AC_CACHE_CHECK(for struct sockaddr_storage, blb_cv_c_struct_sockaddr_storage,
[AC_EGREP_HEADER([sockaddr_storage], sys/socket.h, blb_cv_c_struct_sockaddr_storage=yes,blb_cv_c_struct_sockaddr_storage=no)])
if test "$blb_cv_c_struct_sockaddr_storage" = "yes"; then
AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE,[1],[struct sockaddr_storage is present on your system])
fi
AC_CACHE_CHECK(for struct sockaddr_in6, blb_cv_c_struct_sockaddr_in6,
[AC_EGREP_HEADER([sockaddr_in6], netinet/in.h, blb_cv_c_struct_sockaddr_in6=yes,blb_cv_c_struct_sockaddr_in6=no)])
AC_CACHE_CHECK(for PR_SET_KEEPCAPS, blb_cv_keepcaps,
[AC_EGREP_CPP(PR_SET_KEEPCAPS,
[
#include <sys/prctl.h>
PR_SET_KEEPCAPS
],
blb_cv_keepcaps=no,
blb_cv_keepcaps=yes)])
if test "x$blb_cv_keepcaps" = "xyes"; then
AC_DEFINE(HAVE_PR_SET_KEEPCAPS, 1, [have PR_SET_KEEPCAPS])
fi
if test "$ostype" != "Darwin" ; then
AC_DEFINE(HAVE_ENVIRON, [1], [Specifies whether the environ global variable exists])
fi
AC_CACHE_CHECK(for modern utmp,
blb_cv_c_modern_utmp,
[AC_TRY_COMPILE([
#ifdef HAVE_UTMPX_H
#include <utmpx.h>
#else
#include <utmp.h>
#endif
],
[
#ifdef HAVE_UTMPX_H
struct utmpx ut;
#else
struct utmp ut;
#endif
return sizeof(ut.ut_type) & sizeof(ut.ut_user);
],
blb_cv_c_modern_utmp=yes,
blb_cv_c_modern_utmp=no)])
if test "x$blb_cv_c_modern_utmp" = "xyes"; then
AC_DEFINE(HAVE_MODERN_UTMP, 1, [have modern utmp/utmpx format])
fi
AC_CHECK_DECLS(SO_MEMINFO,
AC_DEFINE(ENABLE_AFSOCKET_MEMINFO_METRICS, 1, [enable SO_MEMINFO based metrics in afsocket]),
AC_DEFINE(ENABLE_AFSOCKET_MEMINFO_METRICS, 0, [enable SO_MEMINFO based metrics in afsocket]),
[[#include <sys/socket.h>]])
dnl ***************************************************************************
dnl Checks for libraries
AC_CHECK_LIB(m, round, BASE_LIBS="$BASE_LIBS -lm")
AC_CHECK_LIB(door, door_create, BASE_LIBS="$BASE_LIBS -ldoor")
AC_CHECK_LIB(socket, socket, BASE_LIBS="$BASE_LIBS -lsocket")
AC_CHECK_LIB(rt, nanosleep, BASE_LIBS="$BASE_LIBS -lrt")
AC_CHECK_FUNC(gethostbyname, [], AC_CHECK_LIB(nsl, gethostbyname, BASE_LIBS="$BASE_LIBS -lnsl"))
AC_CHECK_LIB(regex, regexec, REGEX_LIBS="-lregex")
AC_CHECK_LIB(resolv, res_init, RESOLV_LIBS="-lresolv")
AC_CHECK_FUNCS(strdup \
strtol \
strtoll \
strtoimax \
inet_aton \
inet_ntoa \
getaddrinfo \
getnameinfo \
getutent \
getutxent \
pread \
pwrite \
posix_fallocate \
strcasestr \
memrchr \
localtime_r \
getprotobynumber_r \
gmtime_r \
strnlen \
getline \
strtok_r)
old_LIBS=$LIBS
LIBS=$BASE_LIBS
AC_CHECK_FUNCS(clock_gettime)
LIBS=$old_LIBS
dnl ***************************************************************************
dnl check inotify
dnl ***************************************************************************
AC_CHECK_FUNCS([inotify_init])
dnl ***************************************************************************
dnl check getrandom
dnl ***************************************************************************
AC_CHECK_FUNCS([getrandom])
dnl ***************************************************************************
dnl libevtlog headers/libraries (remove after relicensing libevtlog)
dnl ***************************************************************************
EVTLOG_LIBS="\$(top_builddir)/lib/eventlog/src/libevtlog.la"
EVTLOG_NO_LIBTOOL_LIBS="\$(top_builddir)/lib/eventlog/src/.libs/libevtlog.so"
EVTLOG_CFLAGS="-I\$(top_srcdir)/lib/eventlog/src -I\$(top_builddir)/lib/eventlog/src"
dnl ***************************************************************************
dnl secret storage libraries
dnl ***************************************************************************
SECRETSTORAGE_LIBS="\$(top_builddir)/lib/secret-storage/libsecret-storage.la"
SECRETSTORAGE_NO_LIBTOOL_LIBS="\$(top_builddir)/lib/secret-storage/.libs/libsecret-storage.so"
dnl ***************************************************************************
dnl libwrap headers/libraries
dnl ***************************************************************************
old_LIBS=$LIBS
AC_CACHE_CHECK(for TCP wrapper library,
blb_cv_c_lwrap,
for libwrap in "-lwrap" "/usr/local/lib/libwrap.a"; do
LIBS="$old_LIBS $libwrap"
[AC_TRY_LINK(,
[
}
int allow_severity;
int deny_severity;
extern int hosts_access(void);
int foo(void)
{
hosts_access();
],
[blb_cv_c_lwrap=$libwrap
break],
blb_cv_c_lwrap="")
done
])
LIBS=$old_LIBS
LIBWRAP_LIBS=$blb_cv_c_lwrap
if test "x$enable_tcp_wrapper" = "xauto"; then
AC_MSG_CHECKING(whether to enable TCP wrapper support)
if test "x$ac_cv_header_tcpd_h" = "xyes" -a "x$blb_cv_c_lwrap" != "x"; then
enable_tcp_wrapper=yes
AC_MSG_RESULT(yes)
else
LIBWRAP_LIBS=""
AC_MSG_RESULT(no)
enable_tcp_wrapper=no