/
configure.ac
2467 lines (2265 loc) · 73.6 KB
/
configure.ac
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dnl configure.ac: source for the configure script
dnl copyright by the mpg123 project - free software under the terms of the LGPL 2.1
dnl see COPYING and AUTHORS files in distribution or http://mpg123.org
dnl initially written by Nicholas J. Humfrey
dnl Require autoconf version >= 2.57
AC_PREREQ(2.57)
dnl ############# Initialisation
AC_INIT([mpg123], [20140206000000], [mpg123-devel@lists.sourceforge.net])
dnl Increment API_VERSION when the API gets changes (new functions).
API_VERSION=39
LIB_PATCHLEVEL=0
dnl Since we want to be backwards compatible, both sides get set to API_VERSION.
LIBMPG123_VERSION=$API_VERSION:$LIB_PATCHLEVEL:$API_VERSION
AC_SUBST(LIBMPG123_VERSION)
AC_SUBST(API_VERSION)
AC_CONFIG_SRCDIR(src/mpg123.c)
AC_CONFIG_AUX_DIR(build)
AC_CONFIG_SRCDIR(doc)
AC_CONFIG_MACRO_DIR([m4])
AC_CANONICAL_HOST
dnl Version 1.7 of automake is recommended
AM_INIT_AUTOMAKE(1.7)
AC_CONFIG_HEADERS([src/config.h])
# You get strange symptoms like jack module build failing because the AC_C_CONST failed to detect the working const support.
# In that case, the test failed because -Werror, not because no const there...
# After looking again, there are possibly more tests being obscured by false failures.
AC_MSG_CHECKING([for -Werror in CFLAGS (It breaks tests)])
if echo "$CFLAGS" | grep Werror; then
AC_MSG_RESULT([yes])
AC_MSG_WARN([You have -Werror in CFLAGS. That may break some tests and make this configure bogus.
If you want paranoid compilation, use --enable-nagging option, which adds -Werror for gcc.
Also note that you shall not run make distcheck after configuring with --enable-nagging.
distcheck uses the generated CFLAGS...
Anyhow, continuing at your own risk.])
else
AC_MSG_RESULT([no])
fi
buffer=enabled # try to build with buffer by default
dnl ############# Compiler and tools Checks
LT_LDFLAGS=-export-dynamic
EXEC_LT_LDFLAGS=
be_static=no
all_static=no
AC_MSG_CHECKING([if you are up to something totally static with LDFLAGS/CFLAGS])
for f in $LDFLAGS $CFLAGS
do
case "$f" in
-all-static)
be_static=yes
all_static=yes
;;
-static)
be_static=yes
;;
esac
done
if test "x$be_static" = xyes; then
AC_MSG_RESULT([yes])
LT_LDFLAGS=-all-static
EXEC_LT_LDFLAGS="$LT_LDFLAGS"
else
AC_MSG_RESULT([no])
fi
if test "x$all_static" = xyes; then
AC_MSG_WARN( Use -static in LDFLAGS for all-static linking! Your compiler may blow up on that -all-static. )
fi
AM_PROG_AS
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
dnl "Checking for egrep is broken after removal of libltdl stuff... checks use $EGREP, so searching it here."
AC_PROG_EGREP
AC_C_CONST
AC_INLINE
AC_C_BIGENDIAN
dnl ############# Use Libtool for dynamic module loading
modules=auto
OUTPUT_OBJ="module.\$(OBJEXT)"
AC_ARG_ENABLE(modules,
[ --enable-modules=[no/yes] dynamically loadable output modules],
[
if test "x$enableval" = xyes
then
modules=enabled
else
modules=disabled
fi
],
[
if test "x$be_static" = "xyes"; then
modules=disabled
else
modules=auto
fi
])
dnl We only want shared libraries by default
AC_DISABLE_STATIC
AC_ENABLE_SHARED
if test x"$enable_shared" = xno; then
modules=disabled
LT_LDFLAGS=
else
AC_DEFINE(DYNAMIC_BUILD, 1, [ Define if building with dynamcally linked libmpg123])
fi
if test x"$modules" = xdisabled
then
echo "Modules disabled, not checking for libltdl."
else
have_ltdl=no
AC_CHECK_LIB( [ltdl], [lt_dlinit],
[ AC_CHECK_HEADER( [ltdl.h],
[
have_ltdl=yes
AC_DEFINE(HAVE_LTDL, 1, [ Define if libltdl is available ])
],
[
AC_MSG_WARN([Found ltdl library but NOT the header file on your system])
] )
],
[
AC_MSG_WARN([ltdl library not found])
]
)
if test x"$modules" = xenabled -a x"$have_ltdl" = xno; then
AC_MSG_ERROR([Modules enabled but no libltdl found! This will not work...])
fi
if test x"$modules" = xauto; then
if test x"$have_ltdl" = xyes; then
modules=enabled
echo "We found libltdl: Modules enabled."
else
echo "We did not find libltdl: Modules disabled."
modules=disabled
fi
fi
fi
if test x"$modules" = xdisabled
then
echo "Modules disabled."
else
# Enable module support in source code
AC_DEFINE( USE_MODULES, 1, [Define if modules are enabled] )
fi
dnl Configure libtool
AC_LIBTOOL_WIN32_DLL
AM_PROG_LIBTOOL
if test x"$modules" = xdisabled
then
echo "Modules still disabled..."
MODULE_OBJ="legacy_module.\$(OBJEXT)"
else
MODULE_OBJ="module.\$(OBJEXT)"
fi
AM_CONDITIONAL( [HAVE_MODULES], [test "x$modules" = xenabled] )
AC_SUBST(MODULE_OBJ)
AC_SUBST(LT_LDFLAGS)
AC_SUBST(EXEC_LT_LDFLAGS)
dnl ############## Configurable Options
AC_ARG_ENABLE(debug,
[ --enable-debug=[no/yes] turn on debugging],
[
if test "x$enableval" = xyes
then
debugging="enabled"
else
debugging="disabled"
fi
],
[ debugging="disabled" ]
)
AC_ARG_ENABLE(nagging,
[ --enable-nagging=[no/yes] turn on GCC's pedantic nagging with error on warnings, also enables debugging ],
[
if test "x$enableval" = xyes
then
nagging="enabled"
debugging="enabled"
else
nagging="disabled"
fi
],
[ nagging="disabled" ]
)
if test x"$debugging" = xenabled; then
AC_DEFINE(DEBUG, 1, [ Define if debugging is enabled. ])
fi
AC_ARG_ENABLE(gapless,
[ --enable-gapless=[no/yes] turn on gapless (enabled per default)],
[
if test "x$enableval" = xyes
then
gapless="enabled"
AC_DEFINE(GAPLESS, 1, [ Define if gapless is enabled. ])
else
gapless="disabled"
fi
],
[
gapless="enabled"
AC_DEFINE(GAPLESS, 1, [ Define if gapless is enabled. ])
]
)
AC_ARG_ENABLE(fifo,
[ --enable-fifo=[no/yes] FIFO support for control interface (auto-enabled on linux) ],
[
if test "x$enableval" = xyes
then
fifo="enabled"
else
fifo="disabled"
fi
],
[
fifo="auto"
]
)
AC_ARG_ENABLE(ipv6,
[ --enable-ipv6=[no/yes] IPv6 support (actually any protocol your libc does with getaddrinfo) ],
[
if test "x$enableval" = xyes
then
ipv6="enabled"
else
ipv6="disabled"
fi
],
[
ipv6="auto"
]
)
AC_ARG_ENABLE(network,
[ --enable-network=[no/yes] network support (http streams / webradio) ],
[
if test "x$enableval" = xyes
then
network="enabled"
else
network="disabled"
fi
],
[
network="auto"
]
)
dnl Optional objects list, depends on decoder choice and core feature selection.
dnl Not just for specific decoders anymore...
s_fpu=
DECODER_OBJ=
DECODER_LOBJ=
dnl Core features that can be disabled to reduce binary size.
id3v2=enabled
AC_ARG_ENABLE(id3v2,
[ --disable-id3v2=[no/yes] no ID3v2 parsing ],
[
if test "x$enableval" = xno; then
id3v2="disabled"
fi
], [])
# id3v2 depends on strings... so check that in between.
string=enabled
AC_ARG_ENABLE(string,
[ --disable-string=[no/yes] no string API (this will disable ID3v2; main mpg123 won't build anymore) ],
[
if test "x$enableval" = xno; then
string="disabled"
fi
], [])
if test "x$string" = "xdisabled"; then
AC_DEFINE(NO_STRING, 1, [ Define to disable string functions. ])
id3v2=disabled
AC_MSG_WARN([ID3v2 support disabled because of string API being disabled.])
else
DECODER_OBJ="$DECODER_OBJ stringbuf.\$(OBJEXT)"
DECODER_LOBJ="$DECODER_LOBJ stringbuf.lo"
fi
if test "x$id3v2" = "xdisabled"; then
AC_DEFINE(NO_ID3V2, 1, [ Define to disable ID3v2 parsing. ])
fi
icy=enabled
AC_ARG_ENABLE(icy,
[ --disable-icy=[no/yes] no ICY metainfo parsing/conversion (main mpg123 won't build!) ],
[
if test "x$enableval" = xno; then
icy="disabled"
fi
], [])
if test "x$icy" = "xdisabled"; then
AC_DEFINE(NO_ICY, 1, [ Define to disable ICY handling. ])
else
DECODER_OBJ="$DECODER_OBJ icy.\$(OBJEXT) icy2utf8.\$(OBJEXT)"
DECODER_LOBJ="$DECODER_LOBJ icy.lo icy2utf8.lo"
fi
ntom=enabled
AC_ARG_ENABLE(ntom,
[ --disable-ntom=[no/yes] no flexible resampling ],
[
if test "x$enableval" = xno; then
ntom="disabled"
fi
], [])
if test "x$ntom" = "xdisabled"; then
AC_DEFINE(NO_NTOM, 1, [ Define to disable ntom resampling. ])
else
DECODER_OBJ="$DECODER_OBJ ntom.\$(OBJEXT)"
DECODER_LOBJ="$DECODER_LOBJ ntom.lo"
fi
downsample=enabled
AC_ARG_ENABLE(downsample,
[ --disable-downsample=[no/yes] no downsampled decoding ],
[
if test "x$enableval" = xno; then
downsample="disabled"
fi
], [])
if test "x$downsample" = "xdisabled"; then
AC_DEFINE(NO_DOWNSAMPLE, 1, [ Define to disable downsampled decoding. ])
fi
feeder=enabled
AC_ARG_ENABLE(feeder,
[ --disable-feeder=[no/yes] no feeder decoding, no buffered readers ],
[
if test "x$enableval" = xno; then
feeder="disabled"
fi
], [])
if test "x$feeder" = "xdisabled"; then
AC_DEFINE(NO_FEEDER, 1, [ Define to disable feeder and buffered readers. ])
fi
messages=enabled
AC_ARG_ENABLE(messages,
[ --disable-messages=[no/yes] no error/warning messages on the console ],
[
if test "x$enableval" = xno; then
messages="disabled"
fi
], [])
if test "x$messages" = "xdisabled"; then
AC_DEFINE(NO_WARNING, 1, [ Define to disable warning messages. ])
AC_DEFINE(NO_ERRORMSG, 1, [ Define to disable error messages. ])
AC_DEFINE(NO_ERETURN, 1, [ Define to disable error messages in combination with a return value (the return is left intact). ])
fi
newhuff=enabled
AC_ARG_ENABLE(new-huffman,
[ --enable-new-huffman=[yes/no] use new huffman decoding scheme by Taihei (faster on modern CPUs at least, so on by default) ],
[
if test "x$enableval" = xno; then
newhuff=disabled
fi
]
, [])
if test "x$newhuff" = "xenabled"; then
AC_DEFINE(USE_NEW_HUFFTABLE, 1, [ Define for new Huffman decoding scheme. ])
fi
integers=fast
AC_ARG_ENABLE(int-quality,
[ --enable-int-quality=[yes/no] use rounding instead of fast truncation for integer output, where possible ],
[
if test "x$enableval" = xyes; then
integers=quality
AC_DEFINE(ACCURATE_ROUNDING, 1, [ Define to use proper rounding. ])
fi
], [])
int16=enabled
AC_ARG_ENABLE(16bit,
[ --disable-16bit=[no/yes] no 16 bit integer output ],
[
if test "x$enableval" = xno; then
int16="disabled"
fi
], [])
int8=enabled
AC_ARG_ENABLE(8bit,
[ --disable-8bit=[no/yes] no 8 bit integer output ],
[
if test "x$enableval" = xno; then
int8="disabled"
fi
], [])
int32=enabled
AC_ARG_ENABLE(32bit,
[ --disable-32bit=[no/yes] no 32 bit integer output (also 24 bit) ],
[
if test "x$enableval" = xno; then
int32="disabled"
fi
], [])
real=enabled
AC_ARG_ENABLE(real,
[ --disable-real=[no/yes] no real (floating point) output ],
[
if test "x$enableval" = xno; then
real="disabled"
fi
], [])
AC_ARG_WITH([cpu], [
--with-cpu=generic[_fpu] Use generic processor code with floating point arithmetic
--with-cpu=generic_float Plain alias to generic_fpu now... float output is a normal runtime option!
--with-cpu=generic_nofpu Use generic processor code with fixed point arithmetic (p.ex. ARM, experimental)
--with-cpu=generic_dither Use generic processor code with floating point arithmetic and dithering for 1to1 16bit decoding.
--with-cpu=i386[_fpu] Use code optimized for i386 processors with floating point arithmetic
--with-cpu=i386_nofpu Use code optimized for i386 processors with fixed point arithmetic (experimental)
--with-cpu=i486 Use code optimized for i486 processors (only usable alone!)
--with-cpu=i586 Use code optimized for i586 processors
--with-cpu=i586_dither Use code optimized for i586 processors with dithering (noise shaping), adds 256K to binary size
--with-cpu=3dnow Use code optimized for 3DNow processors
--with-cpu=3dnow_vintage Use code optimized for older 3DNow processors (K6 family)
--with-cpu=3dnowext Use code optimized for 3DNowExt processors (K6-3+, Athlon)
--with-cpu=3dnowext_alone Really only 3DNowExt decoder, without 3DNow fallback for flexible rate
--with-cpu=3dnow_vintage Use code optimized for older extended 3DNow processors (like K6-III+)
--with-cpu=mmx Use code optimized for MMX processors
--with-cpu=mmx_alone Really only MMX decoder, without i586 fallback for flexible rate
--with-cpu=sse Use code optimized for SSE processors
--with-cpu=sse_vintage Use code optimized for older SSE processors (plain C DCT36)
--with-cpu=sse_alone Really only SSE decoder, without i586 fallback for flexible rate
--with-cpu=avx Use code optimized for x86-64 with AVX processors
--with-cpu=x86 Pack all x86 opts into one binary (excluding i486, including dither)
--with-cpu=x86-64 Use code optimized for x86-64 processors (AMD64 and Intel64, including AVX and dithered generic)
--with-cpu=altivec Use code optimized for Altivec processors (PowerPC G4 and G5)
--with-cpu=ppc_nofpu Use code optimized for PowerPC processors with fixed point arithmetic (experimental)
--with-cpu=neon Use code optimized for ARM NEON SIMD engine (Cortex-A series)
--with-cpu=arm_nofpu Use code optimized for ARM processors with fixed point arithmetic (experimental)
])
# opt-in for IEEE754 floating point action
# We want to make sure not to apply hacks relying on IEEE754 storage format on platforms where we did not make sure that this actually is valid.
# It _should_ be fine for about all computers still out there, but we play safe.
ieee=no
case $host in
i?86-*|x86_64-*|powerpc*|sparc*)
ieee=yes
;;
esac
if test "x$ieee" = xyes; then
echo "We assume IEEE754 floating point format."
AC_DEFINE(IEEE_FLOAT, 1, [ Define to indicate that float storage follows IEEE754. ])
fi
newoldwritesample=disabled
case $host in
arm*-*-linux*)
# check that... perhaps we are better off on arm with kernel math emulation
cpu_type="arm_nofpu"
;;
i386-*-linux*|i386-*-kfreebsd*-gnu)
cpu_type="i386_fpu"
newoldwritesample=enabled
;;
i486-*-linux*|i486-*-kfreebsd*-gnu)
cpu_type="i486"
newoldwritesample=enabled
;;
i586-*-linux*|i586-*-kfreebsd*-gnu)
cpu_type="x86"
newoldwritesample=enabled
;;
i686-*-linux*|i686-*-kfreebsd*-gnu)
cpu_type="x86"
newoldwritesample=enabled
;;
x86_64-*-linux*|x86_64-*-kfreebsd*-gnu)
cpu_type="x86-64"
;;
*-*-linux*|*-*-kfreebsd*-gnu)
cpu_type="generic_fpu"
;;
i386-apple-darwin10*)
AC_MSG_CHECKING([if CPU type supports x86-64])
case `sysctl -n hw.optional.x86_64` in
1)
AC_MSG_RESULT([yes])
cpu_type="x86-64"
;;
*)
AC_MSG_RESULT([no])
cpu_type="x86"
newoldwritesample=enabled
;;
esac
;;
i386-apple-darwin*)
cpu_type="x86"
newoldwritesample=enabled
;;
x86_64-apple-darwin*)
cpu_type="x86-64"
;;
*-apple-darwin*)
AC_MSG_CHECKING([if CPU type supports AltiVec])
case `machine` in
ppc7400 | ppc7450 | ppc970)
AC_MSG_RESULT([yes])
cpu_type="altivec"
;;
*)
AC_MSG_RESULT([no])
cpu_type="generic_fpu"
;;
esac
;;
i?86-*-dragonfly* | i?86-*-freebsd* | i?86-*-midnightbsd* | i?86-*-mirbsd* | i?86-*-netbsd* | i?86-*-openbsd*)
cpu_type="x86"
newoldwritesample=enabled
;;
x86_64-*-dragonfly* | x86_64-*-freebsd* | x86_64-*-midnightbsd* | x86_64-*-mirbsd* | x86_64-*-netbsd* | x86_64-*-openbsd*)
cpu_type="x86-64"
;;
*-*-dragonfly* | *-*-freebsd* | *-*-midnightbsd* | *-*-mirbsd* | *-*-netbsd* | *-*-openbsd*)
cpu_type="generic_fpu"
;;
i386-*-solaris*)
cpu_type=x86
newoldwritesample=enabled
;;
x86_64-*-solaris*)
cpu_type=x86-64
;;
*-*-solaris*)
cpu_type="generic_fpu"
;;
# os2-emx = OS/2 with some Unix fun; so p.ex. buffer works.
# Till we sorted out the assembler troubles, generic CPU is default.
i386-pc-os2-emx)
cpu_type=generic_fpu
newoldwritesample=enabled
;;
x86_64-pc-os2-emx)
# We are optimistic hat the future knows OS/2 on x86-64;-)
cpu_type=generic_fpu
;;
*-pc-os2-emx)
cpu_type="generic_fpu"
;;
*-dec-osf*)
cpu_type="generic_fpu"
;;
x86_64-*-cygwin*)
cpu_type="x86-64"
;;
i686-*-cygwin*)
cpu_type="x86"
newoldwritesample=enabled
;;
i586-*-cygwin*)
cpu_type="x86"
newoldwritesample=enabled
;;
i486-*-cygwin*)
cpu_type="i486"
newoldwritesample=enabled
;;
i386-*-cygwin*)
cpu_type="i386"
newoldwritesample=enabled
;;
*-cygwin*)
cpu_type="generic_fpu"
;;
i@<:@3-7@:>@86-*-mingw32*)
LIBS="$LIBS"
buffer=disabled
cpu_type="x86"
newoldwritesample=enabled
;;
x86_64-*-mingw32*)
LIBS="$LIBS"
buffer=disabled
cpu_type="x86-64"
;;
i386-*-nto-qnx*)
cpu_type="x86"
newoldwritesample=enabled
;;
i386-*)
AC_MSG_WARN([Unknown host operating system])
cpu_type="i386"
buffer=disabled
ADD_CPPFLAGS="-DGENERIC $ADD_CPPFLAGS"
newoldwritesample=enabled
;;
i486-*)
AC_MSG_WARN([Unknown host operating system])
cpu_type="i486"
buffer=disabled
ADD_CPPFLAGS="-DGENERIC $ADD_CPPFLAGS"
newoldwritesample=enabled
;;
i586-*)
AC_MSG_WARN([Unknown host operating system])
cpu_type="x86"
buffer=disabled
ADD_CPPFLAGS="-DGENERIC $ADD_CPPFLAGS"
newoldwritesample=enabled
;;
i686-*)
AC_MSG_WARN([Unknown host operating system])
cpu_type="x86"
buffer=disabled
ADD_CPPFLAGS="-DGENERIC $ADD_CPPFLAGS"
newoldwritesample=enabled
;;
x86_64-*)
AC_MSG_WARN([Unknown host operating system])
cpu_type="x86-64"
buffer=disabled
ADD_CPPFLAGS="-DGENERIC $ADD_CPPFLAGS"
;;
*)
AC_MSG_WARN([Unknown host operating system])
cpu_type="generic_fpu"
buffer=disabled
ADD_CPPFLAGS="-DGENERIC $ADD_CPPFLAGS"
;;
esac
AC_ARG_ENABLE(buffer,
[ --enable-buffer=[yes/no] disable audio buffer code (default uses system whitelist... proper checks later) ],
[
if test "x$enableval" = xyes
then
echo "Note: Enabling buffer per request... perhaps it will not build anyway."
buffer="enabled"
else
echo "Note: Disabling buffer per request."
buffer="disabled"
fi
]
)
AC_ARG_ENABLE(newoldwritesample,
[ --enable-newoldwritesample=[no/yes] enable new/old WRITE_SAMPLE macro for non-accurate 16 bit output, faster on certain CPUs (default on on x86-32)],
[
if test "x$enableval" = xyes
then
newoldwritesample=enabled
else
newoldwritesample=disabled
fi
])
dnl Did user choose other CPU type ?
if test "x$with_cpu" != "x"; then
cpu_type=$with_cpu
fi
if test "x$cpu_type" = "xgeneric_nofpu"; then
real=disabled
int32=disabled
fi
if test "x$cpu_type" = "xi386_nofpu"; then
real=disabled
int32=disabled
fi
if test "x$cpu_type" = "xppc_nofpu"; then
real=disabled
int32=disabled
fi
if test "x$cpu_type" = "xarm_nofpu"; then
real=disabled
int32=disabled
fi
if test "x$int16" = "xdisabled"; then
AC_DEFINE(NO_16BIT, 1, [ Define to disable 16 bit integer output. ])
else
DECODER_OBJ="$DECODER_OBJ synth.\$(OBJEXT)"
DECODER_LOBJ="$DECODER_LOBJ synth.lo"
fi
# 8bit works only through 16bit
if test "x$int16" = "xdisabled"; then
int8=disabled
fi
if test "x$int8" = "xdisabled"; then
AC_DEFINE(NO_8BIT, 1, [ Define to disable 8 bit integer output. ])
else
DECODER_OBJ="$DECODER_OBJ synth_8bit.\$(OBJEXT)"
DECODER_LOBJ="$DECODER_LOBJ synth_8bit.lo"
fi
if test "x$int32" = "xdisabled"; then
AC_DEFINE(NO_32BIT, 1, [ Define to disable 32 bit and 24 bit integer output. ])
else
s_fpu="$s_fpu synth_s32"
fi
if test "x$real" = "xdisabled"; then
AC_DEFINE(NO_REAL, 1, [ Define to disable real output. ])
else
s_fpu="$s_fpu synth_real"
fi
layer1=enabled
AC_ARG_ENABLE(layer1,
[ --disable-layer1=[no/yes] no layer I decoding ],
[
if test "x$enableval" = xno; then
layer1="disabled"
fi
], [])
if test "x$layer1" = "xdisabled"; then
AC_DEFINE(NO_LAYER1, 1, [ Define to disable layer I. ])
else
# layer1 needs code in layer2
DECODER_OBJ="$DECODER_OBJ layer1.\$(OBJEXT) layer2.\$(OBJEXT)"
DECODER_LOBJ="$DECODER_LOBJ layer1.lo layer2.lo"
fi
layer2=enabled
AC_ARG_ENABLE(layer2,
[ --disable-layer2=[no/yes] no layer II decoding ],
[
if test "x$enableval" = xno; then
layer2="disabled"
fi
], [])
if test "x$layer2" = "xdisabled"; then
AC_DEFINE(NO_LAYER2, 1, [ Define to disable layer II. ])
else
# layer1 may have added the objects already
if test "x$layer1" = "xdisabled"; then
DECODER_OBJ="$DECODER_OBJ layer2.\$(OBJEXT)"
DECODER_LOBJ="$DECODER_LOBJ layer2.lo"
fi
fi
layer3=enabled
AC_ARG_ENABLE(layer3,
[ --disable-layer3=[no/yes] no layer III decoding ],
[
if test "x$enableval" = xno; then
layer3="disabled"
fi
], [])
if test "x$layer3" = "xdisabled"; then
AC_DEFINE(NO_LAYER3, 1, [ Define to disable layer III. ])
else
DECODER_OBJ="$DECODER_OBJ layer3.\$(OBJEXT)"
DECODER_LOBJ="$DECODER_LOBJ layer3.lo"
fi
AC_ARG_WITH([audio], [
--with-audio=<list of modules> Select a list (or only one) of audio output modules (comma or space separated list).
])
AC_ARG_WITH([default-audio], [
--with-default-audio=aix Use AIX as default audio output sub-system
--with-default-audio=alib Use Alib as default audio output sub-system (for HPUX)
--with-default-audio=alsa Use ALSA as default audio output sub-system (libasound)
--with-default-audio=tinyalsa Use ALSA as default audio output sub-system (tinyalsa)
--with-default-audio=arts Use aRts as default audio output sub-system (KDE sound server)
--with-default-audio=dummy Use dummy as default audio (when no sound card is available)
--with-default-audio=esd Use ESoundD as default audio output sub-system
--with-default-audio=hp Use HP as default audio output sub-system
--with-default-audio=jack Use JACK as default low-latency audio server
--with-default-audio=coreaudio Use Mac OS X as default audio output sub-system (CoreAudio)
--with-default-audio=mint Use MinT as default audio output sub-system (Atari)
--with-default-audio=nas Use NAS as default audio output (Network Audio System)
--with-default-audio=os2 Use OS2 as default audio output sub-system
--with-default-audio=oss Use OSS as default audio output sub-system (/dev/dsp)
--with-default-audio=portaudio Use PortAudio as default audio output sub-system
--with-default-audio=pulse Use Pulse audio server as default audio output sub-system
--with-default-audio=qsa Use QSA as default audio output sub-system
--with-default-audio=sdl Use SDL as default audio output sub-system (Simple DirectMedia Layer)
--with-default-audio=sgi Use SGI as default audio output sub-system (IRIX)
--with-default-audio=sndio Use OpenBSD's sndio as default audio output sub-system
--with-default-audio=sun Use Sun as default audio output sub-system (/dev/audio)
--with-default-audio=win32 Use Win32 audio as default audio output sub-system
--with-default-audio=win32_wasapi Use Win32 wasapi audio as default audio output sub-system
])
AC_ARG_WITH([optimization], [
--with-optimization=0 No Optimization
--with-optimization=1 Limited Optimization (-O) (for gcc)
--with-optimization=2 Default Optimization (-O2 ...) (for gcc)
--with-optimization=3 More Optimize than default (-O3 ...) (for gcc)
--with-optimization=4 Optimize yet more (-O4 ...) (for gcc)
])
AC_ARG_WITH([seektable], [
--with-seektable=<size> choose size of seek index table (0 disables it), default 1000
])
dnl ############## Modules
# Dummy audio output module is always supported
output_modules="dummy"
# Decide on module file suffix. Setting it != .la allows removal of .la files.
AC_ARG_WITH([module-suffix], [
--with-module-suffix=.la (default) Use libtool's .la files for loading modules.
--with-module-suffix=[.so|.dll|...] Specify the native module file suffix to bypass .la files.
])
if test x"$with_module_suffix" = x; then
with_module_suffix=.la
fi
AC_DEFINE_UNQUOTED( MODULE_FILE_SUFFIX, "$with_module_suffix", [The suffix for module files.] )
dnl ############## Assembler, compiler properties
# based on posting from John Dalgliesh <johnd@defyne.org> on ffmpeg (LGPL) mailing list
# extended to use balign if present
AC_MSG_CHECKING([if .balign is present])
echo '.balign 4' > conftest.s
if $CCAS -c -o conftest.o conftest.s 1>/dev/null 2>&1; then
AC_MSG_RESULT([yes])
AC_DEFINE(ASMALIGN_BALIGN, 1, [ Define if .balign is present. ])
else
AC_MSG_RESULT([no])
# find if .align arg is power-of-two or not
asmalign_exp="unknown"
if test x"$asmalign_exp" = xunknown; then
AC_MSG_CHECKING([if .align takes 2-exponent])
asmalign_exp="no"
echo '.align 3' > conftest.s
if $CCAS -c -o conftest.o conftest.s 1>/dev/null 2>&1; then
asmalign_exp="yes"
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
rm -f conftest.o conftest.s
fi
if test x"$asmalign_exp" = xyes; then
AC_DEFINE(ASMALIGN_EXP, 1, [ Define if .align takes 3 for alignment of 2^3=8 bytes instead of 8. ])
else
AC_DEFINE(ASMALIGN_BYTE, 1, [ Define if .align just takes byte count. ])
fi
fi
ccalign="unknown"
if test x"$ccalign" = xunknown; then
AC_MSG_CHECKING([__attribute__((aligned(16)))])
ccalign="no"
echo '__attribute__((aligned(16))) float var;' > conftest.c
if $CC -c -o conftest.o conftest.c >/dev/null 2>&1; then
ccalign="yes"
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
rm -f conftest.o conftest.c
fi
dnl We apply alignment hints only to cpus that need it.
dnl See further below for the definition of CCALIGN
avx_support="unknown"
if test x"$avx_support" = xunknown; then
AC_MSG_CHECKING([if assembler supports AVX instructions])
avx_support="no"
echo '.text' > conftest.s
echo 'vaddps %ymm0,%ymm0,%ymm0' >> conftest.s
if $CCAS -c -o conftest.o conftest.s 1>/dev/null 2>&1; then
avx_support="yes"
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
rm -f conftest.o conftest.s
fi
if test x"$avx_support" = xno; then
AC_CHECK_PROGS(YASM,[yasm],no)
if test x"$YASM" != xno; then
AC_MSG_CHECKING([if $YASM supports GAS syntax and AVX instructions])
echo '.text' > conftest.s
echo 'vaddps %ymm0,%ymm0,%ymm0' >> conftest.s
if $YASM -pgas -rcpp -o conftest.o conftest.s 1>/dev/null 2>&1; then
avx_support="yes"
YASMFLAGS="-pgas -rgas -mamd64"
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
rm -f conftest.o conftest.s
fi
else
YASM="no"
fi
if test "x$cpu_type" = "xavx"; then
if test "x$avx_support" != "xyes"; then
AC_MSG_ERROR([Assembler doesn't understand AVX instructions.])
fi
fi
AC_SUBST(YASM)
AC_SUBST(YASMFLAGS)
dnl ############## Really basic headers, needed for other checks.
AC_HEADER_STDC
dnl Is it too paranoid to specifically check for stdint.h and limits.h?
AC_CHECK_HEADERS([stdio.h stdlib.h string.h unistd.h sched.h sys/ioctl.h sys/types.h stdint.h limits.h inttypes.h sys/time.h sys/wait.h sys/resource.h sys/signal.h signal.h])
dnl ############## Types
dnl Large file support stuff needs cleanup. There are superfluous variables.
dnl Detect large file support, enable switches if needed.
AC_SYS_LARGEFILE
dnl If we do have a switch for large files, rename off_t-aware API calls.
dnl Using the file_offset_bits variable here is fine for linux (possibly Solaris),
dnl Others... we'll have to see.
dnl Note: I started writing this with with multiline replacements.
dnl Does not work. Automake insists on putting these into Makefiles where they break things.
dnl It is also assumed that a system that does not set file offset bits is not
dnl sensitive to largefile changes, i.e. FreeBSD always using 64 bit off_t.
if test "x$ac_cv_sys_file_offset_bits" = x || echo "$ac_cv_sys_file_offset_bits" | $GREP '@<:@^0-9@:>@' > /dev/null; then
dnl if it has non-numeric chars or is empty... ignore...
LFS_LOBJ=
largefile_sensitive=no
else
# Add dual-mode wrapper code.
LFS_LOBJ=lfs_wrap.lo
largefile_sensitive=yes
fi
# Using the lower level macros instead of AC_TYPE_* for compatibility with not freshest autoconf.
AC_CHECK_TYPE(size_t, unsigned long)
AC_CHECK_TYPE(uintptr_t, unsigned long)
AC_CHECK_TYPE(ssize_t, long)
AC_CHECK_TYPE(off_t, long int)
AC_CHECK_TYPE(int32_t, int)
AC_CHECK_TYPE(uint32_t, unsigned int)
AC_CHECK_TYPE(int16_t, short)
AC_CHECK_TYPE(uint16_t, unsigned short)
AC_CHECK_SIZEOF(size_t,4)
AC_CHECK_SIZEOF(ssize_t,4)
AC_CHECK_SIZEOF(off_t,4)
AC_CHECK_SIZEOF(int32_t)
AC_CHECK_SIZEOF(long,4)