configure

#!/bin/sh
#
# FFmpeg configure script
#
# Copyright (c) 2000-2002 Fabrice Bellard
# Copyright (c) 2005-2008 Diego Biurrun
# Copyright (c) 2005-2008 Mans Rullgard
#

# Prevent locale nonsense from breaking basic text processing.
LC_ALL=C
export LC_ALL

# make sure we are running under a compatible shell
# try to make this part work with most shells

try_exec(){
    echo "Trying shell $1"
    type "$1" > /dev/null 2>&1 && exec "$@"
}

unset foo
(: ${foo%%bar}) 2> /dev/null
E1="$?"

(: ${foo?}) 2> /dev/null
E2="$?"

if test "$E1" != 0 || test "$E2" = 0; then
    echo "Broken shell detected.  Trying alternatives."
    export FF_CONF_EXEC
    if test "0$FF_CONF_EXEC" -lt 1; then
        FF_CONF_EXEC=1
        try_exec bash "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 2; then
        FF_CONF_EXEC=2
        try_exec ksh "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 3; then
        FF_CONF_EXEC=3
        try_exec /usr/xpg4/bin/sh "$0" "$@"
    fi
    echo "No compatible shell script interpreter found."
    echo "This configure script requires a POSIX-compatible shell"
    echo "such as bash or ksh."
    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
    echo "Instead, install a working POSIX-compatible shell."
    echo "Disabling this configure test will create a broken FFmpeg."
    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
        echo "This bash version ($BASH_VERSION) is broken on your platform."
        echo "Upgrade to a later version if available."
    fi
    exit 1
fi

show_help(){
  echo "Usage: configure [options]"
  echo "Options: [defaults in brackets after descriptions]"
  echo
  echo "Standard options:"
  echo "  --help                   print this message"
  echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  echo "  --disable-logging        do not log configure debug information"
  echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
  echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
  echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
  echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
  echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
  echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
  echo "  --enable-static          build static libraries [yes]"
  echo "  --disable-static         do not build static libraries [no]"
  echo "  --enable-shared          build shared libraries [no]"
  echo "  --disable-shared         do not build shared libraries [yes]"
  echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  echo "                           and binaries will be under GPL [no]"
  echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  echo "                           and binaries will be unredistributable [no]"
  echo "  --enable-postproc        enable GPLed postprocessing support [no]"
  echo "  --enable-swscale         enable GPLed software scaler support [no]"
  echo "  --enable-avfilter        video filter support (replaces vhook) [no]"
  echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
  echo "  --disable-vhook          disable video hooking support"
  echo "  --enable-beosthreads     use BeOS threads [no]"
  echo "  --enable-os2threads      use OS/2 threads [no]"
  echo "  --enable-pthreads        use pthreads [no]"
  echo "  --enable-vdpau           enable VDPAU support [no]"
  echo "  --enable-w32threads      use Win32 threads [no]"
  echo "  --enable-x11grab         enable X11 grabbing [no]"
  echo "  --enable-xvmc            enable XvMC support [no]"
  echo
  echo "External library support:"
  echo "  --enable-mlib            enable Sun medialib [no]"
  echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
  echo "  --enable-bzlib           enable bzlib [autodetect]"
  echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
  echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
  echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
  echo "                           and libraw1394 [no]"
  echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
  echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
  echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
  echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
  echo "  --enable-libgsm          enable GSM support via libgsm [no]"
  echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
  echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
  echo "                           native (de)muxer exists [no]"
  echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
  echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
  echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
  echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
  echo "                           native implementation exists [no]"
  echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
  echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
  echo "                           native MPEG-4/Xvid encoder exists [no]"
  echo "  --enable-zlib            enable zlib [autodetect]"
  echo ""
  echo "Advanced options (experts only):"
  echo "  --source-path=PATH       path to source code [$source_path]"
  echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
  echo "  --enable-cross-compile   assume a cross-compiler is used"
  echo "  --target-os=OS           compiler targets OS [$target_os]"
  echo "  --target-exec=CMD        command to run executables on target"
  echo "  --target-path=DIR        path to view of build directory on target"
  echo "  --nm=NM                  use nm tool"
  echo "  --cc=CC                  use C compiler CC [$cc]"
  echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
  echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
  echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
  echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
  echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
  echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
  echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
  echo "  --extra-version=STRING   version string suffix []"
  echo "  --build-suffix=SUFFIX    library name suffix []"
  echo "  --arch=ARCH              select architecture [$arch]"
  echo "  --cpu=CPU                select the minimum required CPU (affects"
  echo "                           instruction selection, may crash on older CPUs)"
  echo "  --enable-powerpc-perf    enable performance report on PPC"
  echo "                           (requires enabling PMC)"
  echo "  --disable-altivec        disable AltiVec optimizations"
  echo "  --disable-mmx            disable MMX optimizations"
  echo "  --disable-mmx2           disable MMX2 optimizations"
  echo "  --disable-sse            disable SSE optimizations"
  echo "  --disable-ssse3          disable SSSE3 optimizations"
  echo "  --disable-armv5te        disable armv5te optimizations"
  echo "  --disable-armv6          disable armv6 optimizations"
  echo "  --disable-armv6t2        disable armv6t2 optimizations"
  echo "  --disable-armvfp         disable ARM VFP optimizations"
  echo "  --disable-iwmmxt         disable iwmmxt optimizations"
  echo "  --disable-mmi            disable MMI optimizations"
  echo "  --disable-neon           disable neon optimizations"
  echo "  --disable-vis            disable VIS optimizations"
  echo "  --disable-network        disable network support [no]"
  echo "  --disable-ipv6           disable IPv6 support [no]"
  echo "  --disable-mpegaudio-hp   faster (but less accurate)"
  echo "                           MPEG audio decoding [no]"
  echo "  --disable-aandct         disable AAN DCT code"
  echo "  --disable-fft            disable FFT code"
  echo "  --disable-golomb         disable Golomb code"
  echo "  --disable-mdct           disable MDCT code"
  echo "  --enable-gray            enable full grayscale support (slower color)"
  echo "  --disable-ffmpeg         disable ffmpeg build"
  echo "  --disable-ffplay         disable ffplay build"
  echo "  --disable-ffserver       disable ffserver build"
  echo "  --enable-small           optimize for size instead of speed"
  echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
  echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
  echo "  --enable-beos-netserver  enable BeOS netserver"
  echo "  --disable-encoder=NAME   disable encoder NAME"
  echo "  --enable-encoder=NAME    enable encoder NAME"
  echo "  --disable-encoders       disable all encoders"
  echo "  --disable-decoder=NAME   disable decoder NAME"
  echo "  --enable-decoder=NAME    enable decoder NAME"
  echo "  --disable-decoders       disable all decoders"
  echo "  --disable-muxer=NAME     disable muxer NAME"
  echo "  --enable-muxer=NAME      enable muxer NAME"
  echo "  --disable-muxers         disable all muxers"
  echo "  --disable-demuxer=NAME   disable demuxer NAME"
  echo "  --enable-demuxer=NAME    enable demuxer NAME"
  echo "  --disable-demuxers       disable all demuxers"
  echo "  --enable-parser=NAME     enable parser NAME"
  echo "  --disable-parser=NAME    disable parser NAME"
  echo "  --disable-parsers        disable all parsers"
  echo "  --enable-bsf=NAME        enable bitstream filter NAME"
  echo "  --disable-bsf=NAME       disable bitstream filter NAME"
  echo "  --disable-bsfs           disable all bitstream filters"
  echo "  --enable-protocol=NAME   enable protocol NAME"
  echo "  --disable-protocol=NAME  disable protocol NAME"
  echo "  --disable-protocols      disable all protocols"
  echo "  --disable-indevs         disable input devices"
  echo "  --disable-outdevs        disable output devices"
  echo "  --disable-devices        disable all devices"
  echo "  --enable-filter=NAME     enable filter NAME"
  echo "  --disable-filter=NAME    disable filter NAME"
  echo "  --disable-filters        disable all filters"
  echo "  --list-decoders          show all available decoders"
  echo "  --list-encoders          show all available encoders"
  echo "  --list-muxers            show all available muxers"
  echo "  --list-demuxers          show all available demuxers"