dnl Process this file with autoconf to produce a configure script.

AC_INIT(README)

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=7

SDL_INTERFACE_AGE=7

SDL_BINARY_AGE=7

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)

# libtool versioning

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`

AC_SUBST(LT_RELEASE)

AC_SUBST(LT_CURRENT)

AC_SUBST(LT_REVISION)

AC_SUBST(LT_AGE)

dnl Detect the canonical host and target build environment

AC_CANONICAL_SYSTEM

dnl Setup for automake

AM_INIT_AUTOMAKE(SDL, $SDL_VERSION)

dnl Check for tools

AC_LIBTOOL_WIN32_DLL

AM_PROG_LIBTOOL

AC_PROG_MAKE_SET

AC_PROG_CC

AC_C_INLINE

AC_C_CONST

AC_PROG_CXX

AC_PROG_INSTALL

AC_FUNC_ALLOCA

ASFLAGS=""

AC_SUBST(ASFLAGS)

CCAS="$CC"

AC_SUBST(CCAS)

CCASFLAGS=""

AC_SUBST(CCASFLAGS)

AM_CONDITIONAL([am__fastdepOBJC], false)

dnl The alpha architecture needs special flags for binary portability

case "$target" in

    alpha*-*-linux*)

        if test x$ac_cv_prog_gcc = xyes; then

            CFLAGS="$CFLAGS -mcpu=ev4 -Wa,-mall"

        fi

        ;;

esac

dnl Add compiler-specific optimization flags

dnl See if the user wants aggressive optimizations of the code

AC_ARG_ENABLE(debug,

[  --enable-debug          Disable aggressive optimizations [default=yes]],

              , enable_debug=yes)

if test x$enable_debug != xyes; then

    if test x$ac_cv_prog_gcc = xyes; then

        CFLAGS="$CFLAGS -fexpensive-optimizations"

        # Ack! This breaks the MMX YV12 conversion on gcc 2.95.2

        # CFLAGS="$CFLAGS -fomit-frame-pointer"

    fi

    case "$target" in

        i486-*-*)

            if test x$ac_cv_prog_gcc = xyes; then

                CFLAGS="$CFLAGS -march=i486"

            fi

            ;;

        i?86-*-*)

            if test x$ac_cv_prog_gcc = xyes; then

                CFLAGS="$CFLAGS -march=pentium -mcpu=pentiumpro"

            fi

            ;;

        *-*-osf*)

            if test x$ac_cv_prog_gcc != xyes; then

                CFLAGS="-g3 -fast -arch host"

            fi

            ;;

    esac

fi

dnl Add verbose warnings by default, and allow ANSI compliance checking

AC_ARG_ENABLE(strict-ansi,

[  --enable-strict-ansi    Enable strict ANSI compliance build [default=no]],

              , enable_strict_ansi=no)

if test x$ac_cv_prog_gcc = xyes; then

    CFLAGS="$CFLAGS -Wall"

    if test x$enable_strict_ansi = xyes; then

        CFLAGS="$CFLAGS -ansi -pedantic -D_XOPEN_SOURCE"

    fi

fi

dnl Initialize the compiler and linker flags for SDL applications

SDL_CFLAGS=""

SDL_LIBS="-lSDL"

dnl Add the math library for the new gamma correction support

case "$target" in

    *-*-cygwin* | *-*-mingw32*)

        MATHLIB=""

        ;;

    *-*-beos*)

        MATHLIB=""

        ;;

    *-*-darwin*)

        MATHLIB=""

        ;;

    *)

        MATHLIB="-lm"

        ;;

esac

SYSTEM_LIBS="$SYSTEM_LIBS $MATHLIB"

dnl Enable/disable various subsystems of the SDL library

AC_ARG_ENABLE(audio,

[  --enable-audio          Enable the audio subsystem [default=yes]],

              , enable_audio=yes)

if test x$enable_audio = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS audio"

    SDL_EXTRALIBS="$SDL_EXTRALIBS audio/libaudio.la"

else

    CFLAGS="$CFLAGS -DDISABLE_AUDIO"

fi

AC_ARG_ENABLE(video,

[  --enable-video          Enable the video subsystem [default=yes]],

              , enable_video=yes)

if test x$enable_video = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS video"

    SDL_EXTRALIBS="$SDL_EXTRALIBS video/libvideo.la"

else

    CFLAGS="$CFLAGS -DDISABLE_VIDEO"

fi

AC_ARG_ENABLE(events,

[  --enable-events         Enable the events subsystem [default=yes]],

              , enable_events=yes)

if test x$enable_video = xyes -a x$enable_events = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS events"

    SDL_EXTRALIBS="$SDL_EXTRALIBS events/libevents.la"

else

    CFLAGS="$CFLAGS -DDISABLE_EVENTS"

fi

AC_ARG_ENABLE(joystick,

[  --enable-joystick       Enable the joystick subsystem [default=yes]],

              , enable_joystick=yes)

if test x$enable_joystick = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS joystick"

    SDL_EXTRALIBS="$SDL_EXTRALIBS joystick/libjoystick.la"

else

    CFLAGS="$CFLAGS -DDISABLE_JOYSTICK"

fi

AC_ARG_ENABLE(cdrom,

[  --enable-cdrom          Enable the cdrom subsystem [default=yes]],

              , enable_cdrom=yes)

if test x$enable_cdrom = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS cdrom"

    SDL_EXTRALIBS="$SDL_EXTRALIBS cdrom/libcdrom.la"

else

    CFLAGS="$CFLAGS -DDISABLE_CDROM"

fi

AC_ARG_ENABLE(threads,

[  --enable-threads        Enable the threading subsystem [default=yes]],

              , enable_threads=yes)

SDL_EXTRADIRS="$SDL_EXTRADIRS thread"

SDL_EXTRALIBS="$SDL_EXTRALIBS thread/libthread.la"

if test x$enable_threads != xyes; then

    CFLAGS="$CFLAGS -DDISABLE_THREADS"

    COPY_ARCH_SRC(src/thread, generic, SDL_systhread.c)

    COPY_ARCH_SRC(src/thread, generic, SDL_systhread_c.h)

    COPY_ARCH_SRC(src/thread, generic, SDL_sysmutex.c)

    COPY_ARCH_SRC(src/thread, generic, SDL_sysmutex_c.h)

    COPY_ARCH_SRC(src/thread, generic, SDL_syssem.c)

    COPY_ARCH_SRC(src/thread, generic, SDL_syssem_c.h)

    COPY_ARCH_SRC(src/thread, generic, SDL_syscond.c)

    COPY_ARCH_SRC(src/thread, generic, SDL_syscond_c.h)

fi

AC_ARG_ENABLE(timers,

[  --enable-timers         Enable the timer subsystem [default=yes]],

              , enable_timers=yes)

if test x$enable_timers = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS timer"

    SDL_EXTRALIBS="$SDL_EXTRALIBS timer/libtimer.la"

else

    CFLAGS="$CFLAGS -DDISABLE_TIMERS"

fi

AC_ARG_ENABLE(endian,

[  --enable-endian         Enable the endian subsystem [default=yes]],

              , enable_endian=yes)

if test x$enable_endian = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS endian"

    SDL_EXTRALIBS="$SDL_EXTRALIBS endian/libendian.la"

else

    CFLAGS="$CFLAGS -DDISABLE_ENDIAN"

fi

AC_ARG_ENABLE(file,

[  --enable-file           Enable the file subsystem [default=yes]],

              , enable_file=yes)

if test x$enable_file = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS file"

    SDL_EXTRALIBS="$SDL_EXTRALIBS file/libfile.la"

else

    CFLAGS="$CFLAGS -DDISABLE_FILE"

fi

AC_ARG_ENABLE(cpuinfo,

[  --enable-cpuinfo        Enable the cpuinfo subsystem [default=yes]],

              , enable_cpuinfo=yes)

if test x$enable_cpuinfo = xyes; then

    SDL_EXTRADIRS="$SDL_EXTRADIRS cpuinfo"

    SDL_EXTRALIBS="$SDL_EXTRALIBS cpuinfo/libcpuinfo.la"

else

    CFLAGS="$CFLAGS -DDISABLE_CPUINFO"

fi

dnl See if the OSS audio interface is supported

CheckOSS()

{

    AC_ARG_ENABLE(oss,

[  --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

            CFLAGS="$CFLAGS -DOSS_USE_SOUNDCARD_H"

            ])

        fi

        AC_MSG_RESULT($have_oss)

        if test x$have_oss = xyes; then

            CFLAGS="$CFLAGS -DOSS_SUPPORT"

            AUDIO_SUBDIRS="$AUDIO_SUBDIRS dsp"

            AUDIO_DRIVERS="$AUDIO_DRIVERS dsp/libaudio_dsp.la"

            AUDIO_SUBDIRS="$AUDIO_SUBDIRS dma"

            AUDIO_DRIVERS="$AUDIO_DRIVERS dma/libaudio_dma.la"

        fi

    fi

}

dnl See if the ALSA audio interface is supported

CheckALSA()

{

    AC_ARG_ENABLE(alsa,

[  --enable-alsa           support the ALSA audio API [default=yes]],

                  , enable_alsa=yes)

    if test x$enable_audio = xyes -a x$enable_alsa = xyes; then

        AC_MSG_CHECKING(for ALSA audio support)

        have_alsa=no

        AC_TRY_COMPILE([

          #include <alsa/asoundlib.h>

        ],[

          #if SND_LIB_VERSION < ((0<<16)|(9<<8)|0)

          #error Your version of ALSA is too old

          #endif

          snd_pcm_t *pcm_handle;

        ],[

        AC_CHECK_LIB(asound, snd_pcm_open, have_alsa=yes)

        ])

        if test x$have_alsa = xyes; then

            CFLAGS="$CFLAGS -DALSA_SUPPORT"

            SYSTEM_LIBS="$SYSTEM_LIBS -lasound"

            AUDIO_SUBDIRS="$AUDIO_SUBDIRS alsa"

            AUDIO_DRIVERS="$AUDIO_DRIVERS alsa/libaudio_alsa.la"

        else

            AC_MSG_RESULT($have_alsa)

        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

        ])

        # Set up files for the audio library

        if test x$have_dmedia = xyes; then

            CFLAGS="$CFLAGS -DDMEDIA_SUPPORT"

            AUDIO_SUBDIRS="$AUDIO_SUBDIRS dmedia"

            AUDIO_DRIVERS="$AUDIO_DRIVERS dmedia/libaudio_dmedia.la"

            SYSTEM_LIBS="$SYSTEM_LIBS -laudio"

        fi

    fi

}

dnl Find the ESD includes and libraries

CheckESD()

{

    AC_ARG_ENABLE(esd,

[  --enable-esd            support the Enlightened Sound Daemon [default=yes]],

                  , enable_esd=yes)

    if test x$enable_audio = xyes -a x$enable_esd = xyes; then

        use_esd=no

        AM_PATH_ESD(0.2.8, use_esd=yes)

        if test x$use_esd = xyes; then

            AC_ARG_ENABLE(esd-shared,

[  --enable-esd-shared     dynamically load ESD audio support [default=yes]],

                          , enable_esd_shared=yes)

            esd_lib_spec=`echo $ESD_LIBS | sed 's/.*-L\([[^ ]]*\).*/\1\/libesd.so.*/'`

            esd_lib=`ls $esd_lib_spec | head -1 | sed 's/.*\/\(.*\)/\1/'`

            echo "-- $esd_lib_spec -> $esd_lib"

            if test x$use_dlopen != xyes && \

               test x$enable_esd_shared = xyes; then

                AC_MSG_ERROR([You must have dlopen() support and use the --enable-dlopen option])

            fi

            if test x$use_dlopen = xyes && \

               test x$enable_esd_shared = xyes && test x$esd_lib != x; then

                CFLAGS="$CFLAGS -DESD_SUPPORT -DESD_DYNAMIC=\$(esd_lib) $ESD_CFLAGS"

                AC_SUBST(esd_lib)

            else

                CFLAGS="$CFLAGS -DESD_SUPPORT $ESD_CFLAGS"

                SYSTEM_LIBS="$SYSTEM_LIBS $ESD_LIBS"

            fi

            AUDIO_SUBDIRS="$AUDIO_SUBDIRS esd"

            AUDIO_DRIVERS="$AUDIO_DRIVERS esd/libaudio_esd.la"

        fi

    fi

}

CheckARTSC()

{

    AC_ARG_ENABLE(arts,

[  --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(ARTSCCONFIG, artsc-config)

        if test x$ARTSCCONFIG = x -o x$ARTSCCONFIG = x'"$ARTSCCONFIG"'; then

            : # arts isn't installed

        else

            ARTSC_CFLAGS=`$ARTSCCONFIG --cflags`

            ARTSC_LIBS=`$ARTSCCONFIG --libs`

            AC_MSG_CHECKING(for aRts development environment)

            audio_arts=no

            save_CFLAGS="$CFLAGS"

            CFLAGS="$CFLAGS $ARTSC_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,

[  --enable-arts-shared    dynamically load aRts audio support [default=yes]],

                              , enable_arts_shared=yes)

                arts_lib_spec=`echo $ARTSC_LIBS | sed 's/.*-L\([[^ ]]*\).*/\1\/libartsc.so.*/'`

                arts_lib=`ls $arts_lib_spec | head -1 | sed 's/.*\/\(.*\)/\1/'`

                echo "-- $arts_lib_spec -> $arts_lib"

                if test x$use_dlopen != xyes && \

                   test x$enable_arts_shared = xyes; then

                    AC_MSG_ERROR([You must have dlopen() support and use the --enable-dlopen option])

                fi

                if test x$use_dlopen = xyes && \

                   test x$enable_arts_shared = xyes && test x$arts_lib != x; then

                    CFLAGS="$CFLAGS -DARTSC_SUPPORT -DARTSC_DYNAMIC=\$(arts_lib) $ARTSC_CFLAGS"

                    AC_SUBST(arts_lib)

                else

                    CFLAGS="$CFLAGS -DARTSC_SUPPORT $ARTSC_CFLAGS"

                    SYSTEM_LIBS="$SYSTEM_LIBS $ARTSC_LIBS"

                fi

                AUDIO_SUBDIRS="$AUDIO_SUBDIRS arts"

                AUDIO_DRIVERS="$AUDIO_DRIVERS arts/libaudio_arts.la"

            fi

        fi

    fi

}

dnl See if the NAS audio interface is supported

CheckNAS()

{

    AC_ARG_ENABLE(nas,

[  --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_MSG_CHECKING(for NAS audio support)

        have_nas=no

        if test -r /usr/X11R6/include/audio/audiolib.h; then

            have_nas=yes

            CFLAGS="$CFLAGS -DNAS_SUPPORT -I/usr/X11R6/include/"

            SYSTEM_LIBS="$SYSTEM_LIBS -laudio -lXt"

            AUDIO_SUBDIRS="$AUDIO_SUBDIRS nas"

            AUDIO_DRIVERS="$AUDIO_DRIVERS nas/libaudio_nas.la"

        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

            CFLAGS="$CFLAGS -DNAS_SUPPORT"

            SYSTEM_LIBS="$SYSTEM_LIBS -lnas -lXt"

            AUDIO_SUBDIRS="$AUDIO_SUBDIRS nas"

            AUDIO_DRIVERS="$AUDIO_DRIVERS nas/libaudio_nas.la"

        fi

        AC_MSG_RESULT($have_nas)

    fi

}

dnl rcg07142001 See if the user wants the disk writer audio driver...

CheckDiskAudio()

{

    AC_ARG_ENABLE(diskaudio,

[  --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

        CFLAGS="$CFLAGS -DDISKAUD_SUPPORT"

        AUDIO_SUBDIRS="$AUDIO_SUBDIRS disk"

        AUDIO_DRIVERS="$AUDIO_DRIVERS disk/libaudio_disk.la"

    fi

}

dnl Set up the Atari Audio driver

CheckAtariAudio()

{

    AC_ARG_ENABLE(mintaudio,

[  --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

            CFLAGS="$CFLAGS -DMINTAUDIO_SUPPORT"

            AUDIO_SUBDIRS="$AUDIO_SUBDIRS mint"

            AUDIO_DRIVERS="$AUDIO_DRIVERS mint/libaudio_mintaudio.la"

        fi

    fi

}

dnl See if we can use x86 assembly blitters

# NASM is available from: http://nasm.octium.net/

CheckNASM()

{

    dnl Make sure we are running on an x86 platform

    case $target in

        i?86*)

            ;;

        *)

        # Nope, bail early.

            return

            ;;

    esac

    dnl Check for NASM (for assembly blit routines)

    AC_ARG_ENABLE(nasm,

[  --enable-nasm           use nasm assembly blitters on x86 [default=yes]],

                  , enable_nasm=yes)

    if test x$enable_video = xyes -a x$enable_nasm = xyes; then

        AC_PATH_PROG(NASM, nasm)

        if test x$NASM = x -o x$NASM = x'"$NASM"'; then

            : # nasm isn't installed

        else

            CFLAGS="$CFLAGS -DUSE_ASMBLIT -I$srcdir/hermes"

            case $ARCH in

              win32)

                  NASMFLAGS="-f win32"

                  ;;

              openbsd)

                  NASMFLAGS="-f aoutb"

                  ;;

              *)

                  NASMFLAGS="-f elf"

                  ;;

            esac

            AC_SUBST(NASMFLAGS)