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configure.ac
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configure.ac
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dnl Process this file with autoconf to produce a configure script.
AC_INIT
AC_CONFIG_SRCDIR([src/SDL.c])
AC_CONFIG_HEADERS([include/SDL_config.h])
AC_GNU_SOURCE
AC_CONFIG_AUX_DIR([build-scripts])
dnl Set various version strings - taken gratefully from the GTk sources
#
# Making releases:
# Edit include/SDL/SDL_version.h and change the version, then:
# SDL_MICRO_VERSION += 1;
# SDL_INTERFACE_AGE += 1;
# SDL_BINARY_AGE += 1;
# if any functions have been added, set SDL_INTERFACE_AGE to 0.
# if backwards compatibility has been broken,
# set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
#
SDL_MAJOR_VERSION=1
SDL_MINOR_VERSION=2
SDL_MICRO_VERSION=16
SDL_INTERFACE_AGE=5
SDL_BINARY_AGE=16
SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
AC_SUBST(SDL_MAJOR_VERSION)
AC_SUBST(SDL_MINOR_VERSION)
AC_SUBST(SDL_MICRO_VERSION)
AC_SUBST(SDL_INTERFACE_AGE)
AC_SUBST(SDL_BINARY_AGE)
AC_SUBST(SDL_VERSION)
dnl libtool versioning
LT_INIT([win32-dll])
LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
LT_REVISION=$SDL_INTERFACE_AGE
LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
LT_EXTRA="" dnl for OS2 dll name
m4_pattern_allow([^LT_])
AC_SUBST(LT_RELEASE)
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)
AC_SUBST(LT_EXTRA)
dnl Detect the canonical build and host environments
dnl AC_CANONICAL_HOST
AC_C_BIGENDIAN
if test x$ac_cv_c_bigendian = xyes; then
AC_DEFINE(SDL_BYTEORDER, 4321)
else
AC_DEFINE(SDL_BYTEORDER, 1234)
fi
dnl Check for tools
AC_PROG_CC
AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_CHECK_TOOL(WINDRES, [windres], [:])
PKG_PROG_PKG_CONFIG
dnl Set up the compiler and linker flags
INCLUDE="-I$srcdir/include"
if test x$srcdir != x.; then
# Remove SDL_config.h from the source directory, since it's the
# default one, and we want to include the one that we generate.
if test -f $srcdir/include/SDL_config.h; then
rm $srcdir/include/SDL_config.h
fi
INCLUDE="-Iinclude $INCLUDE"
fi
case "$host" in
*-*-cygwin*)
# We build SDL on cygwin without the UNIX emulation layer
BASE_CFLAGS="-I/usr/include/mingw -mno-cygwin"
BASE_LDFLAGS="-mno-cygwin"
;;
*-*-os2*)
# disable static builds on os/2
enable_static=no
# -DBUILD_SDL is needed for DECLSPEC
BASE_CFLAGS="-DBUILD_SDL"
BASE_LDFLAGS=""
# SDL-1.2 has been built as SDL12.dll
LT_EXTRA="-os2dllname SDL12"
;;
*)
BASE_CFLAGS="-D_GNU_SOURCE=1"
BASE_LDFLAGS=""
;;
esac
BUILD_CFLAGS="$CFLAGS $CPPFLAGS"
EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
BUILD_LDFLAGS="$LDFLAGS"
EXTRA_LDFLAGS="$BASE_LDFLAGS"
## These are common directories to find software packages
#for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
# if test -d $path/include; then
# EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
# fi
# if test -d $path/lib; then
# EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
# fi
#done
SDL_CFLAGS="$BASE_CFLAGS"
SDL_LIBS="-lSDL $BASE_LDFLAGS"
CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
CFLAGS="$CFLAGS $EXTRA_CFLAGS"
LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
dnl set this to use on systems that use lib64 instead of lib
base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
dnl Function to find a library in the compiler search path
find_lib()
{
gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
if test "$cross_compiling" = yes; then
host_lib_path=""
else
host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
fi
for path in $env_lib_path $gcc_bin_path $gcc_lib_path $host_lib_path; do
lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
if test x$lib != x; then
echo $lib
return
fi
done
}
dnl Check for compiler characteristics
AC_C_CONST
AC_C_INLINE
AC_C_VOLATILE
dnl See whether we are allowed to use the system C library
AC_ARG_ENABLE(libc,
[AS_HELP_STRING([--enable-libc], [Use the system C library [default=yes]])],
, enable_libc=yes)
if test x$enable_libc = xyes; then
AC_DEFINE(HAVE_LIBC)
dnl Check for C library headers
AC_HEADER_STDC
AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
dnl Check for typedefs, structures, etc.
AC_TYPE_SIZE_T
if test x$ac_cv_header_inttypes_h = xyes -o x$ac_cv_header_stdint_h = xyes; then
AC_CHECK_TYPE(int64_t)
if test x$ac_cv_type_int64_t = xyes; then
AC_DEFINE(SDL_HAS_64BIT_TYPE)
fi
have_inttypes=yes
fi
AC_FUNC_ALLOCA
dnl Checks for library functions.
AC_CHECK_FUNC(mprotect,
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/mman.h>
],, [
AC_DEFINE(HAVE_MPROTECT)
]),
)
AC_CHECK_FUNCS(malloc calloc realloc free getenv putenv unsetenv qsort abs bcopy memset memcmp memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtod strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp sscanf snprintf vsnprintf iconv sigaction setjmp nanosleep getauxval elf_aux_info)
AC_CHECK_LIB(iconv, libiconv_open, [EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
AC_CHECK_LIB(m, pow, [EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE(HAVE_SA_SIGACTION)], ,[#include <signal.h>])
fi
if test x$have_inttypes != xyes; then
AC_CHECK_SIZEOF(char, 1)
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 8)
if test x$ac_cv_sizeof_char = x1; then
AC_DEFINE(int8_t, signed char)
AC_DEFINE(uint8_t, unsigned char)
fi
if test x$ac_cv_sizeof_short = x2; then
AC_DEFINE(int16_t, signed short)
AC_DEFINE(uint16_t, unsigned short)
else
if test x$ac_cv_sizeof_int = x2; then
AC_DEFINE(int16_t, signed int)
AC_DEFINE(uint16_t, unsigned int)
fi
fi
if test x$ac_cv_sizeof_int = x4; then
AC_DEFINE(int32_t, signed int)
AC_DEFINE(uint32_t, unsigned int)
else
if test x$ac_cv_sizeof_long = x4; then
AC_DEFINE(int32_t, signed long)
AC_DEFINE(uint32_t, unsigned long)
fi
fi
if test x$ac_cv_sizeof_long = x8; then
AC_DEFINE(int64_t, signed long)
AC_DEFINE(uint64_t, unsigned long)
AC_DEFINE(SDL_HAS_64BIT_TYPE)
else
if test x$ac_cv_sizeof_long_long = x8; then
AC_DEFINE(int64_t, signed long long)
AC_DEFINE(uint64_t, unsigned long long)
AC_DEFINE(SDL_HAS_64BIT_TYPE)
fi
fi
AC_DEFINE(size_t, unsigned int)
AC_DEFINE(uintptr_t, unsigned long)
fi
# Standard C sources
SOURCES="$SOURCES $srcdir/src/*.c"
SOURCES="$SOURCES $srcdir/src/audio/*.c"
SOURCES="$SOURCES $srcdir/src/cdrom/*.c"
SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
SOURCES="$SOURCES $srcdir/src/events/*.c"
SOURCES="$SOURCES $srcdir/src/file/*.c"
SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
SOURCES="$SOURCES $srcdir/src/thread/*.c"
SOURCES="$SOURCES $srcdir/src/timer/*.c"
SOURCES="$SOURCES $srcdir/src/video/*.c"
dnl Enable/disable various subsystems of the SDL library
AC_ARG_ENABLE(audio,
[AS_HELP_STRING([--enable-audio], [Enable the audio subsystem [default=yes]])],
, enable_audio=yes)
if test x$enable_audio != xyes; then
AC_DEFINE(SDL_AUDIO_DISABLED)
fi
AC_ARG_ENABLE(video,
[AS_HELP_STRING([--enable-video], [Enable the video subsystem [default=yes]])],
, enable_video=yes)
if test x$enable_video != xyes; then
AC_DEFINE(SDL_VIDEO_DISABLED)
fi
AC_ARG_ENABLE(events,
[AS_HELP_STRING([--enable-events], [Enable the events subsystem [default=yes]])],
, enable_events=yes)
if test x$enable_events != xyes; then
AC_DEFINE(SDL_EVENTS_DISABLED)
fi
AC_ARG_ENABLE(joystick,
[AS_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [default=yes]])],
, enable_joystick=yes)
if test x$enable_joystick != xyes; then
AC_DEFINE(SDL_JOYSTICK_DISABLED)
else
SOURCES="$SOURCES $srcdir/src/joystick/*.c"
fi
AC_ARG_ENABLE(cdrom,
[AS_HELP_STRING([--enable-cdrom], [Enable the cdrom subsystem [default=yes]])],
, enable_cdrom=yes)
if test x$enable_cdrom != xyes; then
AC_DEFINE(SDL_CDROM_DISABLED)
fi
AC_ARG_ENABLE(threads,
[AS_HELP_STRING([--enable-threads], [Enable the threading subsystem [default=yes]])],
, enable_threads=yes)
if test x$enable_threads != xyes; then
AC_DEFINE(SDL_THREADS_DISABLED)
fi
AC_ARG_ENABLE(timers,
[AS_HELP_STRING([--enable-timers], [Enable the timer subsystem [default=yes]])],
, enable_timers=yes)
if test x$enable_timers != xyes; then
AC_DEFINE(SDL_TIMERS_DISABLED)
fi
AC_ARG_ENABLE(file,
[AS_HELP_STRING([--enable-file], [Enable the file subsystem [default=yes]])],
, enable_file=yes)
if test x$enable_file != xyes; then
AC_DEFINE(SDL_FILE_DISABLED)
fi
AC_ARG_ENABLE(loadso,
[AS_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [default=yes]])],
, enable_loadso=yes)
if test x$enable_loadso != xyes; then
AC_DEFINE(SDL_LOADSO_DISABLED)
fi
AC_ARG_ENABLE(cpuinfo,
[AS_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [default=yes]])],
, enable_cpuinfo=yes)
if test x$enable_cpuinfo != xyes; then
AC_DEFINE(SDL_CPUINFO_DISABLED)
fi
AC_ARG_ENABLE(assembly,
[AS_HELP_STRING([--enable-assembly], [Enable assembly routines [default=yes]])],
, enable_assembly=yes)
if test x$enable_assembly = xyes; then
AC_DEFINE(SDL_ASSEMBLY_ROUTINES)
fi
dnl See if the OSS audio interface is supported
CheckOSS()
{
AC_ARG_ENABLE(oss,
[AS_HELP_STRING([--enable-oss], [support the OSS audio API [default=yes]])],
, enable_oss=yes)
if test x$enable_audio = xyes -a x$enable_oss = xyes; then
AC_MSG_CHECKING(for OSS audio support)
have_oss=no
if test x$have_oss != xyes; then
AC_TRY_COMPILE([
#include <sys/soundcard.h>
],[
int arg = SNDCTL_DSP_SETFRAGMENT;
], [have_oss=yes])
fi
if test x$have_oss != xyes; then
AC_TRY_COMPILE([
#include <soundcard.h>
],[
int arg = SNDCTL_DSP_SETFRAGMENT;
], [
have_oss=yes
AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H)
])
fi
AC_MSG_RESULT($have_oss)
if test x$have_oss = xyes; then
AC_DEFINE(SDL_AUDIO_DRIVER_OSS)
SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
SOURCES="$SOURCES $srcdir/src/audio/dma/*.c"
have_audio=yes
# We may need to link with ossaudio emulation library
case "$host" in
*-*-openbsd*|*-*-netbsd*)
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
esac
fi
fi
}
dnl See if the ALSA audio interface is supported
CheckALSA()
{
AC_ARG_ENABLE(alsa,
[AS_HELP_STRING([--enable-alsa], [support the ALSA audio API [default=yes]])],
, enable_alsa=yes)
if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
AM_PATH_ALSA(0.9.0, have_alsa=yes, have_alsa=no)
# Restore all flags from before the ALSA detection runs
CFLAGS="$alsa_save_CFLAGS"
LDFLAGS="$alsa_save_LDFLAGS"
LIBS="$alsa_save_LIBS"
if test x$have_alsa = xyes; then
AC_ARG_ENABLE(alsa-shared,
[AS_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [default=yes]])],
, enable_alsa_shared=yes)
alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
AC_DEFINE(SDL_AUDIO_DRIVER_ALSA)
SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
if test x$have_loadso != xyes && \
test x$enable_alsa_shared = xyes; then
AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
fi
if test x$have_loadso = xyes && \
test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
echo "-- dynamic libasound -> $alsa_lib"
AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib")
else
EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
fi
have_audio=yes
fi
fi
}
dnl Check whether we want to use IRIX 6.5+ native audio or not
CheckDMEDIA()
{
if test x$enable_audio = xyes; then
AC_MSG_CHECKING(for dmedia audio support)
have_dmedia=no
AC_TRY_COMPILE([
#include <dmedia/audio.h>
],[
ALport audio_port;
], [have_dmedia=yes])
AC_MSG_RESULT($have_dmedia)
if test x$have_dmedia = xyes; then
AC_DEFINE(SDL_AUDIO_DRIVER_DMEDIA)
SOURCES="$SOURCES $srcdir/src/audio/dmedia/*.c"
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -laudio"
have_audio=yes
fi
fi
}
dnl Check whether we want to use Tru64 UNIX native audio or not
CheckMME()
{
dnl Make sure we are running on an Tru64 UNIX
case $ARCH in
osf)
;;
*)
return
;;
esac
if test x$enable_audio = xyes; then
AC_MSG_CHECKING(for MME audio support)
MME_CFLAGS="-I/usr/include/mme"
MME_LIBS="-lmme"
have_mme=no
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $MME_CFLAGS"
AC_TRY_COMPILE([
#include <mme_api.h>
],[
HWAVEOUT sound;
], [have_mme=yes])
CFLAGS="$save_CFLAGS"
AC_MSG_RESULT($have_mme)
if test x$have_mme = xyes; then
AC_DEFINE(SDL_AUDIO_DRIVER_MMEAUDIO)
SOURCES="$SOURCES $srcdir/src/audio/mme/*.c"
EXTRA_CFLAGS="$EXTRA_CFLAGS $MME_CFLAGS"
EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MME_LIBS"
have_audio=yes
fi
fi
}
dnl Find the ESD includes and libraries
CheckESD()
{
AC_ARG_ENABLE(esd,
[AS_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [default=yes]])],
, enable_esd=yes)
if test x$enable_audio = xyes -a x$enable_esd = xyes; then
AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
if test x$have_esd = xyes; then
AC_ARG_ENABLE(esd-shared,
[AS_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [default=yes]])],
, enable_esd_shared=yes)
esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
AC_DEFINE(SDL_AUDIO_DRIVER_ESD)
SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
if test x$have_loadso != xyes && \
test x$enable_esd_shared = xyes; then
AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
fi
if test x$have_loadso = xyes && \
test x$enable_esd_shared = xyes && test x$esd_lib != x; then
echo "-- dynamic libesd -> $esd_lib"
AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib")
else
EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
fi
have_audio=yes
fi
fi
}
dnl Find Sndio
CheckSndio()
{
AC_ARG_ENABLE(sndio,
[AS_HELP_STRING([--enable-sndio], [support the sndio audio API [default=yes]])],
, enable_sndioaudio=yes)
if test x$enable_audio = xyes -a x$enable_sndioaudio = xyes; then
AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
AC_MSG_CHECKING(for sndio support)
have_sndio=no
if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
have_sndio=yes
SNDIO_LIBS="-lsndio"
fi
AC_MSG_RESULT($have_sndio)
if test x$have_sndio = xyes; then
AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO)
SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
have_audio=yes
fi
fi
}
dnl Find PulseAudio
CheckPulseAudio()
{
AC_ARG_ENABLE(pulseaudio,
[AS_HELP_STRING([--enable-pulseaudio], [use PulseAudio [default=yes]])],
, enable_pulseaudio=yes)
if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
PKG_CHECK_MODULES([PULSE], [libpulse-simple >= 0.9], audio_pulse=yes, audio_pulse=no)
if test x$audio_pulse = xyes; then
AC_ARG_ENABLE(pulseaudio-shared,
[AS_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [default=yes]])],
, enable_pulseaudio_shared=yes)
pulse_lib=[`find_lib "libpulse-simple.so.*" "$PULSE_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
AC_DEFINE(SDL_AUDIO_DRIVER_PULSE)
SOURCES="$SOURCES $srcdir/src/audio/pulse/*.c"
EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSE_CFLAGS"
if test x$have_loadso != xyes && \
test x$enable_pulseaudio_shared = xyes; then
AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
fi
if test x$have_loadso = xyes && \
test x$enable_pulseaudio_shared = xyes && test x$pulse_lib != x; then
echo "-- dynamic libpulse-simple -> $pulse_lib"
AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSE_DYNAMIC, "$pulse_lib")
case "$host" in
# On Solaris, pulseaudio must be linked deferred explicitly
# to prevent undefined symbol failures.
*-*-solaris*)
PULSE_LIBS=`echo $PULSE_LIBS | sed 's/\-l/-Wl,-l/g'`
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSE_LIBS -Wl,-znodeferred"
esac
else
EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSE_LIBS"
fi
have_audio=yes
fi
fi
}
CheckARTSC()
{
AC_ARG_ENABLE(arts,
[AS_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [default=yes]])],
, enable_arts=yes)
if test x$enable_audio = xyes -a x$enable_arts = xyes; then
AC_PATH_PROG(ARTSCONFIG, artsc-config)
if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
: # arts isn't installed
else
ARTS_CFLAGS=`$ARTSCONFIG --cflags`
ARTS_LIBS=`$ARTSCONFIG --libs`
AC_MSG_CHECKING(for aRts development environment)
audio_arts=no
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $ARTS_CFLAGS"
AC_TRY_COMPILE([
#include <artsc.h>
],[
arts_stream_t stream;
], [audio_arts=yes])
CFLAGS="$save_CFLAGS"
AC_MSG_RESULT($audio_arts)
if test x$audio_arts = xyes; then
AC_ARG_ENABLE(arts-shared,
[AS_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [default=yes]])],
, enable_arts_shared=yes)
arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
AC_DEFINE(SDL_AUDIO_DRIVER_ARTS)
SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
if test x$have_loadso != xyes && \
test x$enable_arts_shared = xyes; then
AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
fi
if test x$have_loadso = xyes && \
test x$enable_arts_shared = xyes && test x$arts_lib != x; then
echo "-- dynamic libartsc -> $arts_lib"
AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib")
else
EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
fi
have_audio=yes
fi
fi
fi
}
dnl See if the NAS audio interface is supported
CheckNAS()
{
AC_ARG_ENABLE(nas,
[AS_HELP_STRING([--enable-nas], [support the NAS audio API [default=yes]])],
, enable_nas=yes)
if test x$enable_audio = xyes -a x$enable_nas = xyes; then
AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
AC_MSG_CHECKING(for NAS audio support)
have_nas=no
if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
have_nas=yes
NAS_LIBS="-laudio"
elif test -r /usr/X11R6/include/audio/audiolib.h; then
have_nas=yes
NAS_CFLAGS="-I/usr/X11R6/include/"
NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
dnl On IRIX, the NAS includes are in a different directory,
dnl and libnas must be explicitly linked in
elif test -r /usr/freeware/include/nas/audiolib.h; then
have_nas=yes
NAS_LIBS="-lnas -lXt"
fi
AC_MSG_RESULT($have_nas)
if test x$have_nas = xyes; then
AC_ARG_ENABLE(nas-shared,
[AS_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [default=yes]])],
, enable_nas_shared=yes)
nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
if test x$have_loadso != xyes && \
test x$enable_nas_shared = xyes; then
AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
fi
if test x$have_loadso = xyes && \
test x$enable_nas_shared = xyes && test x$nas_lib != x; then
echo "-- dynamic libaudio -> $nas_lib"
AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib")
else
EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
fi
AC_DEFINE(SDL_AUDIO_DRIVER_NAS)
SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
have_audio=yes
fi
fi
}
dnl rcg07142001 See if the user wants the disk writer audio driver...
CheckDiskAudio()
{
AC_ARG_ENABLE(diskaudio,
[AS_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [default=yes]])],
, enable_diskaudio=yes)
if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
AC_DEFINE(SDL_AUDIO_DRIVER_DISK)
SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
fi
}
dnl rcg03142006 See if the user wants the dummy audio driver...
CheckDummyAudio()
{
AC_ARG_ENABLE(dummyaudio,
[AS_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [default=yes]])],
, enable_dummyaudio=yes)
if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY)
SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
fi
}
dnl Set up the Atari Audio driver
CheckAtariAudio()
{
AC_ARG_ENABLE(mintaudio,
[AS_HELP_STRING([--enable-mintaudio], [support Atari audio driver [default=yes]])],
, enable_mintaudio=yes)
if test x$enable_audio = xyes -a x$enable_mintaudio = xyes; then
mintaudio=no
AC_CHECK_HEADER(mint/falcon.h, have_mint_falcon_hdr=yes)
if test x$have_mint_falcon_hdr = xyes; then
mintaudio=yes
AC_DEFINE(SDL_AUDIO_DRIVER_MINT)
SOURCES="$SOURCES $srcdir/src/audio/mint/*.c"
SOURCES="$SOURCES $srcdir/src/audio/mint/*.S"
have_audio=yes
fi
fi
}
dnl See if we can use x86 assembly blitters
dnl NASM is available from: http://nasm.us
CheckNASM()
{
dnl Make sure we are running on an x86 platform
case $host in
i?86*)
;;
*)
# Nope, bail early.
return
;;
esac
dnl Mac OS X might report itself as "i386" but generate x86_64 code.
dnl So see what size we think a pointer is, and bail if not 32-bit.
AC_CHECK_SIZEOF([void *], 4)
if test x$ac_cv_sizeof_void_p != x4; then
return
fi
dnl Check for NASM (for assembly blit routines)
AC_ARG_ENABLE(nasm,
[AS_HELP_STRING([--enable-nasm], [use nasm assembly blitters on x86 [default=yes]])],
, enable_nasm=yes)
if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_nasm = xyes; then
CompileNASM()
{
# Usage: CompileNASM <filename>
AC_MSG_CHECKING(to see if $NASM supports $1)
if $NASM $NASMFLAGS $1 -o $1.o >&AS_MESSAGE_LOG_FD 2>&1; then
CompileNASM_ret="yes"
else
CompileNASM_ret="no"
fi
rm -f $1 $1.o
AC_MSG_RESULT($CompileNASM_ret)
test "$CompileNASM_ret" = "yes"
}
if test x"$NASMFLAGS" = x; then
case $ARCH in
win32)
NASMFLAGS="-f win32"
;;
macosx)
NASMFLAGS="-f macho"
;;
os2)
NASMFLAGS="-f aout"
;;
*)
NASMFLAGS="-f elf32"
;;
esac
fi
AC_PATH_PROG(NASM, nasm)
echo "%ifidn __OUTPUT_FORMAT__,elf32" > unquoted-sections
echo "section .note.GNU-stack noalloc noexec nowrite progbits" >> unquoted-sections
echo "%endif" >> unquoted-sections
CompileNASM unquoted-sections || NASM=""
if test "x$NASM" != x -a "x$NASM" != x'"$NASM"'; then
AC_DEFINE(SDL_HERMES_BLITTERS)
SOURCES="$SOURCES $srcdir/src/hermes/*.asm"
NASMFLAGS="$NASMFLAGS -I $srcdir/src/hermes/"
dnl See if hidden visibility is supported
echo "GLOBAL _bar:function hidden" > symbol-visibility
echo "_bar:" >> symbol-visibility
CompileNASM symbol-visibility && NASMFLAGS="$NASMFLAGS -DHIDDEN_VISIBILITY"
AC_SUBST(NASM)
AC_SUBST(NASMFLAGS)
case "$host" in
# this is needed for QNX, because it does not define __ELF__
*-*-qnx*)
EXTRA_CFLAGS="$EXTRA_CFLAGS -D__ELF__";;
*-*-solaris*)
EXTRA_CFLAGS="$EXTRA_CFLAGS -D__ELF__";;
esac
fi
fi
}
dnl Check for altivec instruction support using gas syntax
CheckAltivec()
{
AC_ARG_ENABLE(altivec,
[AS_HELP_STRING([--enable-altivec], [use altivec assembly blitters on PPC [default=yes]])],
, enable_altivec=yes)
if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_altivec = xyes; then
save_CFLAGS="$CFLAGS"
have_gcc_altivec=no
have_altivec_h_hdr=no
altivec_CFLAGS="-maltivec"
CFLAGS="$save_CFLAGS $altivec_CFLAGS"
AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
AC_TRY_COMPILE([
#include <altivec.h>
vector unsigned int vzero() {
return vec_splat_u32(0);
}
],, [
have_gcc_altivec=yes
have_altivec_h_hdr=yes
])
AC_MSG_RESULT($have_gcc_altivec)
if test x$have_gcc_altivec = xno; then
AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
AC_TRY_COMPILE([
vector unsigned int vzero() {
return vec_splat_u32(0);
}
],, [have_gcc_altivec=yes])
AC_MSG_RESULT($have_gcc_altivec)
fi
CFLAGS="$save_CFLAGS"
if test x$have_gcc_altivec = xyes; then
AC_DEFINE(SDL_ALTIVEC_BLITTERS)
if test x$have_altivec_h_hdr = xyes; then
AC_DEFINE(HAVE_ALTIVEC_H)
fi
EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
fi
fi
}
dnl Check for altivec instruction support - APPLE extensions
CheckAltivecApple()
{
AC_ARG_ENABLE(altivec,
[AS_HELP_STRING([--enable-altivec], [use altivec assembly blitters on PPC [default=yes]])],
, enable_altivec=yes)
if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_altivec = xyes; then
save_CFLAGS="$CFLAGS"
have_gcc_altivec=no
altivec_CFLAGS="-faltivec"
CFLAGS="$save_CFLAGS $altivec_CFLAGS"
dnl -faltivec doesn't need altivec.h and actually emits a warning if included..
AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
AC_TRY_COMPILE([
vector unsigned int vzero() {
return vec_splat_u32(0);
}
],, [have_gcc_altivec=yes])
AC_MSG_RESULT($have_gcc_altivec)
CFLAGS="$save_CFLAGS"
if test x$have_gcc_altivec = xyes; then
AC_DEFINE(SDL_ALTIVEC_BLITTERS)
EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
else
dnl Check standart gcc altivec options
CheckAltivec
fi
fi
}
dnl Check for ARM instruction support using gas syntax
CheckARM()
{
AC_ARG_ENABLE(arm-simd,
[AS_HELP_STRING([--enable-arm-simd], [use SIMD assembly blitters on ARM [default=yes]])],
enable_arm_simd=$enableval, enable_arm_simd=yes)
if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_arm_simd = xyes; then
save_CFLAGS="$CFLAGS"
have_arm_simd=no
CFLAGS="-x assembler-with-cpp $CFLAGS"
AC_MSG_CHECKING(for ARM SIMD)
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
.text
.arch armv6
.object_arch armv4
.arm
.altmacro
#ifndef __ARM_EABI__
#error EABI is required (to be sure that calling conventions are compatible)
#endif
pld [r0]
uqadd8 r0, r0, r0
]])], have_arm_simd=yes)
AC_MSG_RESULT($have_arm_simd)
CFLAGS="$save_CFLAGS"
if test x$have_arm_simd = xyes; then
AC_DEFINE(SDL_ARM_SIMD_BLITTERS)
SOURCES="$SOURCES $srcdir/src/video/arm/pixman-arm-simd*.S"
fi
fi
}
dnl Check for ARM NEON instruction support using gas syntax
CheckNEON()
{
AC_ARG_ENABLE(arm-neon,
[AS_HELP_STRING([--enable-arm-neon], [use NEON assembly blitters on ARM [default=yes]])],
enable_arm_neon=$enableval, enable_arm_neon=yes)
if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_arm_neon = xyes; then
save_CFLAGS="$CFLAGS"
have_arm_neon=no
CFLAGS="-x assembler-with-cpp $CFLAGS"
AC_MSG_CHECKING(for ARM NEON)
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
.text
.fpu neon
.arch armv7a
.object_arch armv4
.eabi_attribute 10, 0
.arm
.altmacro
#ifndef __ARM_EABI__
#error EABI is required (to be sure that calling conventions are compatible)
#endif
pld [r0]
vmovn.u16 d0, q0
]])], have_arm_neon=yes)
AC_MSG_RESULT($have_arm_neon)
CFLAGS="$save_CFLAGS"
if test x$have_arm_neon = xyes; then
AC_DEFINE(SDL_ARM_NEON_BLITTERS)
SOURCES="$SOURCES $srcdir/src/video/arm/pixman-arm-neon*.S"
fi
fi
}
dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
dnl Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
CheckVisibilityHidden()
{
AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
have_gcc_fvisibility=no
visibility_CFLAGS="-fvisibility=hidden"
save_CFLAGS="$CFLAGS"
CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
AC_TRY_COMPILE([
#if !defined(__GNUC__) || __GNUC__ < 4
#error SDL only uses visibility attributes in GCC 4 or newer
#endif
],, [have_gcc_fvisibility=yes])
AC_MSG_RESULT($have_gcc_fvisibility)
CFLAGS="$save_CFLAGS"
if test x$have_gcc_fvisibility = xyes; then
EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
fi
}
dnl See if GCC's -Wall is supported.
CheckWarnAll()
{
AC_MSG_CHECKING(for GCC -Wall option)
have_gcc_Wall=no
save_CFLAGS="$CFLAGS"
CFLAGS="$save_CFLAGS -Wall"
AC_TRY_COMPILE([int x = 0;],, [have_gcc_Wall=yes])
AC_MSG_RESULT($have_gcc_Wall)
CFLAGS="$save_CFLAGS"
if test x$have_gcc_Wall = xyes; then
EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
need_gcc_Wno_multichar=no
case "$host" in
*-*-beos* | *-*-haiku*)
need_gcc_Wno_multichar=yes
;;
esac
AC_MSG_RESULT($need_gcc_Wno_multichar)
if test x$need_gcc_Wno_multichar = xyes; then
EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
fi
fi
}
dnl Do the iPod thing
CheckIPod()
{
AC_ARG_ENABLE(ipod,
[AS_HELP_STRING([--enable-ipod], [configure SDL to work with iPodLinux [default=no]])],
, enable_ipod=no)
if test x$enable_ipod = xyes; then
EXTRA_CFLAGS="$EXTRA_CFLAGS -DIPOD"
AC_DEFINE(SDL_VIDEO_DRIVER_IPOD)
SOURCES="$SOURCES $srcdir/src/video/ipod/*.c"