PeerStreamer

#!/bin/sh

#

# FFmpeg configure script

#

# Copyright (c) 2000, 2001, 2002 Fabrice Bellard

# Copyright (c) 2005-2006 Diego Biurrun

# Copyright (c) 2005-2006 Mans Rullgard

#

# 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 "  --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 [default=yes]"

  echo "  --disable-static         do not build static libraries [default=no]"

  echo "  --enable-shared          build shared libraries [default=no]"

  echo "  --disable-shared         do not build shared libraries [default=yes]"

  echo "  --enable-gpl             allow use of GPL code, the resulting libav*"

  echo "                           and ffmpeg will be under GPL [default=no]"

  echo "  --enable-nonfree         allow use of nonfree code, the resulting libav*"

  echo "                           and ffmpeg will be unredistributable [default=no]"

  echo "  --enable-postproc        enable GPLed postprocessing support [default=no]"

  echo "  --enable-swscale         software scaler support [default=no]"

  echo "  --enable-avfilter        video filter support (replaces vhook) [default=no]"

  echo "  --enable-avfilter-lavf   video filters dependant on avformat [default=no]"

  echo "  --enable-beosthreads     use BeOS threads [default=no]"

  echo "  --enable-os2threads      use OS/2 threads [default=no]"

  echo "  --enable-pthreads        use pthreads [default=no]"

  echo "  --enable-w32threads      use Win32 threads [default=no]"

  echo "  --enable-x11grab         enable X11 grabbing [default=no]"

  echo

  echo "External library support:"

  echo "  --enable-mlib            use Sun medialib [default=no]"

  echo "  --enable-liba52          enable GPLed liba52 support [default=no]"

  echo "  --enable-liba52bin       open liba52.so.0 at runtime [default=no]"

  echo "  --enable-avisynth        allow reading AVISynth script files [default=no]"

  echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec"

  echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec"

  echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"

  echo "                           and libraw1394 [default=no]"

  echo "  --enable-libfaac         enable FAAC support via libfaac [default=no]"

  echo "  --enable-libfaad         enable FAAD support via libfaad [default=no]"

  echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [default=no]"

  echo "  --enable-libgsm          enable GSM support via libgsm [default=no]"

  echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [default=no]"

  echo "  --enable-libnut          enable NUT (de)muxing via libnut,"

  echo "                           native demuxer exists [default=no]"

  echo "  --enable-libtheora       enable Theora encoding via libtheora [default=no]"

  echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"

  echo "                           native implementation exists [default=no]"

  echo "  --enable-libx264         enable H.264 encoding via x264 [default=no]"

  echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"

  echo "                           native MPEG-4/Xvid encoder exists [default=no]"

  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 "  --cc=CC                  use C compiler CC [$cc]"

  echo "  --make=MAKE              use specified make [$make]"

  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 "  --build-suffix=SUFFIX    suffix for application specific build []"

  echo "  --arch=ARCH              select architecture  [$arch]"

  echo "  --cpu=CPU                selects the minimum cpu required (affects"

  echo "                           instruction selection, may crash on older CPUs)"

  echo "  --enable-powerpc-perf    enable performance report on PPC"

  echo "                           (requires enabling PMC)"

  echo "  --disable-mmx            disable MMX usage"

  echo "  --disable-mmx2           disable MMX2 usage"

  echo "  --disable-ssse3          disable SSSE3 usage"

  echo "  --disable-armv5te        disable armv5te usage"

  echo "  --disable-armv6          disable armv6 usage"

  echo "  --disable-iwmmxt         disable iwmmxt usage"

  echo "  --disable-altivec        disable AltiVec usage"

  echo "  --disable-network        disable network support [default=no]"

  echo "  --disable-ipv6           disable ipv6 support [default=no]"

  echo "  --disable-zlib           disable zlib [default=no]"

  echo "  --disable-vhook          disable video hooking support"

  echo "  --disable-debug          disable debugging symbols"

  echo "  --disable-mpegaudio-hp   faster (but less accurate)"

  echo "                           MPEG audio decoding [default=no]"

  echo "  --enable-gray            enable full grayscale support (slower color)"

  echo "  --disable-ffmpeg         disable ffmpeg build"

  echo "  --disable-ffserver       disable ffserver build"

  echo "  --disable-ffplay         disable ffplay 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 "  --disable-encoder=NAME   disables encoder NAME"

  echo "  --enable-encoder=NAME    enables encoder NAME"

  echo "  --disable-decoder=NAME   disables decoder NAME"

  echo "  --enable-decoder=NAME    enables decoder NAME"

  echo "  --disable-encoders       disables all encoders"

  echo "  --disable-decoders       disables all decoders"

  echo "  --disable-muxer=NAME     disables muxer NAME"

  echo "  --enable-muxer=NAME      enables muxer NAME"

  echo "  --disable-muxers         disables all muxers"

  echo "  --disable-demuxer=NAME   disables demuxer NAME"

  echo "  --enable-demuxer=NAME    enables demuxer NAME"

  echo "  --disable-demuxers       disables all demuxers"

  echo "  --enable-parser=NAME     enables parser NAME"

  echo "  --disable-parser=NAME    disables parser NAME"

  echo "  --disable-parsers        disables all parsers"

  echo "  --enable-bsf=NAME        enables bitstream filter NAME"

  echo "  --disable-bsf=NAME       disables bitstream filter NAME"

  echo "  --disable-bsfs           disables all bitstream filters"

  echo "  --enable-protocol=NAME   enables protocol NAME"

  echo "  --disable-protocol=NAME  disables protocol NAME"

  echo "  --disable-protocols      disables all protocols"

  echo "  --disable-devices        disables all devices"

  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"

  echo "  --list-parsers           show all available parsers"

  echo "  --list-protocols         show all available protocols"

  echo "  --list-bsfs              show all available bitstream filters"

  echo "  --list-indevs            show all available input devices"

  echo "  --list-outdevs           show all available output devices"

  echo

  echo "Developer options (useful when working on FFmpeg itself):"

  echo "  --enable-gprof           enable profiling with gprof [$gprof]"

  echo "  --disable-optimizations  disable compiler optimizations"

  echo "  --enable-extra-warnings  enable more compiler warnings"

  echo "  --disable-stripping      disable stripping of executables and shared libraries"

  echo ""

  echo "NOTE: Object files are built at the place where configure is launched."

  exit 1

}

log(){

    echo "$@" >>$logfile

}

log_file(){

    log BEGIN $1

    pr -n -t $1 >>$logfile

    log END $1

}

echolog(){

    log "$@"

    echo "$@"

}

die(){

    echolog "$@"

    cat <<EOF

If you think configure made a mistake, make sure you are using the latest

version from SVN.  If the latest version fails, report the problem to the

ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.

EOF

    if disabled logging; then

        cat <<EOF

Rerun configure with logging enabled (do not use --disable-logging), and

include the log this produces with your report.

EOF

    else

cat <<EOF

Include the log file "$logfile" produced by configure as this will help

solving the problem.

EOF

    fi

    rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH

    exit 1

}

# Avoid locale weirdness, besides we really just want to translate ASCII.

toupper(){

    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ

}

tolower(){

    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

}

set_all(){

    value=$1

    shift

    for var in $*; do

        eval $var=$value

    done

}

pushvar(){

    for var in $*; do

        eval level=\${${var}_level:=0}

        eval ${var}_${level}="\$$var"

        eval ${var}_level=$(($level+1))

    done

}

popvar(){

    for var in $*; do

        eval level=\${${var}_level:-0}

        test $level = 0 && continue

        eval level=$(($level-1))

        eval $var="\${${var}_${level}}"

        eval ${var}_level=$level

        eval unset ${var}_${level}

    done

}

enable(){

    set_all yes $*

}

disable(){

    set_all no $*

}

enabled(){

    eval test "x\$$1" = "xyes"

}

disabled(){

    eval test "x\$$1" = "xno"

}

enabled_all(){

    for opt; do

        enabled $opt || return 1

    done

}

disabled_all(){

    for opt; do

        disabled $opt || return 1

    done

}

enabled_any(){

    for opt; do

        enabled $opt && return 0

    done

}

disabled_any(){

    for opt; do

        disabled $opt && return 0

    done

}

is_in(){

    value=$1

    shift

    for var in $*; do

        [ $var = $value ] && return 0

    done

    return 1

}

check_deps(){

    for cfg; do

        enabled ${cfg}_checking && die "Circular dependency for $cfg."

        disabled ${cfg}_checking && continue

        enable ${cfg}_checking

        eval dep_all="\$${cfg}_deps"

        eval dep_any="\$${cfg}_deps_any"

        pushvar cfg dep_all dep_any

        check_deps $dep_all $dep_any

        popvar cfg dep_all dep_any

        enabled_all $dep_all || disable $cfg

        enabled_any $dep_any || disable $cfg

        if enabled $cfg; then

            eval dep_extralibs="\$${cfg}_extralibs"

            test -n "$dep_extralibs" && add_extralibs $dep_extralibs

        fi

        disable ${cfg}_checking

    done

}

print_config(){

    pfx=$1

    header=$2

    makefile=$3

    shift 3

    for cfg; do

        ucname="`toupper $cfg`"

        if enabled $cfg; then

            echo "#define ${pfx}${ucname} 1" >> $header

            echo "#define ENABLE_${ucname} 1" >> $header

            echo "${pfx}${ucname}=yes" >> $makefile

        else

            echo "#define ENABLE_${ucname} 0" >> $header

        fi

    done

}

flags_saved(){

    (: ${SAVE_CFLAGS?}) 2>/dev/null

}

save_flags(){

    flags_saved && return

    SAVE_CFLAGS="$CFLAGS"

    SAVE_LDFLAGS="$LDFLAGS"

    SAVE_extralibs="$extralibs"

}

restore_flags(){

    flags_saved || return

    CFLAGS="$SAVE_CFLAGS"

    LDFLAGS="$SAVE_LDFLAGS"

    extralibs="$SAVE_extralibs"

    unset SAVE_CFLAGS

    unset SAVE_LDFLAGS

    unset SAVE_extralibs

}

temp_cflags(){

    save_flags

    CFLAGS="$CFLAGS $*"

}

temp_ldflags(){

    save_flags

    LDFLAGS="$LDFLAGS $*"

}

temp_extralibs(){

    save_flags

    extralibs="$extralibs $*"

}

append(){

    var=$1

    shift

    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""

    eval "$var=\"\$$var $*\""

}

add_cflags(){

    append CFLAGS "$@"

}

add_ldflags(){

    append LDFLAGS "$@"

}

add_extralibs(){

    append extralibs "$@"

}

check_cmd(){

    log "$@"

    "$@" >>$logfile 2>&1

}

check_cc(){

    log check_cc "$@"

    cat >$TMPC

    log_file $TMPC

    check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC

}

check_cpp(){

    log check_cpp "$@"

    cat >$TMPC

    log_file $TMPC

    check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC

}

check_asm(){

    log check_asm "$@"

    name="$1"

    asm="$2"

    shift 2

    check_cc "$@" <<EOF && enable $name || disable $name

int foo(void){ asm volatile($asm); }

EOF

}

check_ld(){

    log check_ld "$@"

    check_cc || return

    flags=''

    libs=''

    for f; do

        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"

    done

    check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs

}

check_cflags(){

    log check_cflags "$@"

    check_cc "$@" <<EOF && add_cflags "$@"

int x;

EOF

}

check_ldflags(){

    log check_ldflags "$@"

    check_ld "$@" <<EOF && add_ldflags "$@"

int main(void){ return 0; }

EOF

}

check_header(){

    log check_header "$@"

    header=$1

    shift

    var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`

    disable $var

    check_cpp "$@" <<EOF && enable $var

#include <$header>

int x;

EOF

}

check_func(){

    log check_func "$@"

    func=$1

    shift

    disable $func

    check_ld "$@" <<EOF && enable $func

extern int $func();

int main(void){ $func(); }

EOF

}

check_func2(){

    log check_func2 "$@"

    headers=$1

    func=$2

    shift 2

    disable $func

    incs=""

    for hdr in $headers; do

        incs="$incs

#include <$hdr>"

    done

    check_ld "$@" <<EOF && enable $func

$incs

int main(int argc, char **argv){

    (void) $func;

    return 0;

}

EOF

}

check_lib(){

    log check_lib "$@"

    header="$1"

    func="$2"

    shift 2

    temp_extralibs "$@"

    check_header $header && check_func $func && add_extralibs "$@"

    err=$?

    restore_flags

    return $err

}

check_lib2(){

    log check_lib2 "$@"

    headers="$1"

    func="$2"

    shift 2

    temp_extralibs "$@"

    check_func2 "$headers" $func && add_extralibs "$@"

    err=$?

    restore_flags

    return $err

}

check_exec(){

    check_ld "$@" && { enabled cross_compile || $TMPE >>$logfile 2>&1; }

}

check_exec_crash(){

    code=`cat`

    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)

    # are safe but may not be available everywhere.  Thus we use

    # raise(SIGTERM) instead.  The check is run in a subshell so we

    # can redirect the "Terminated" message from the shell.  SIGBUS

    # is not defined by standard C so it is used conditionally.

    (check_exec "$@") >>$logfile 2>&1 <<EOF

#include <signal.h>

static void sighandler(int sig){

    raise(SIGTERM);

}

int main(void){

    signal(SIGILL, sighandler);

    signal(SIGFPE, sighandler);

    signal(SIGSEGV, sighandler);

#ifdef SIGBUS

    signal(SIGBUS, sighandler);

#endif

    { $code }

}

EOF

}

check_type(){

    log check_type "$@"

    headers=$1

    type=$2

    shift 2

    disable $type

    incs=""

    for hdr in $headers; do

        incs="$incs

#include <$hdr>"

    done

    check_cc "$@" <<EOF && enable $type

$incs

$type v;

EOF

}

require(){

    name="$1"

    header="$2"

    func="$3"

    shift 3

    check_lib $header $func "$@" || die "ERROR: $name not found"

}

require2(){

    name="$1"

    headers="$2"

    func="$3"

    shift 3

    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"

}

check_foo_config(){

    cfg=$1

    pkg=$2

    header=$3

    func=$4

    shift 4

    disable $cfg

    check_cmd ${pkg}-config --version

    err=$?

    if test "$err" = 0; then

        temp_cflags `${pkg}-config --cflags`

        temp_extralibs `${pkg}-config --libs`

        check_lib "$@" $header $func && enable $cfg

    fi

    return $err

}

apply(){

    file=$1

    shift

    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"

}

COMPONENT_LIST="

    bsfs

    decoders

    demuxers

    encoders

    filters

    indevs

    muxers

    outdevs

    parsers

    protocols

"

CONFIG_LIST="

    $COMPONENT_LIST

    avfilter

    avfilter_lavf

    avisynth

    beos_netserver

    ffmpeg

    ffplay

    ffserver

    gpl

    gprof

    gray

    hardcoded_tables

    ipv6

    liba52

    liba52bin

    libamr_nb

    libamr_wb

    libdc1394

    libfaac

    libfaad

    libfaadbin

    libgsm

    libmp3lame

    libnut

    libtheora

    libvorbis

    libx264

    libxvid

    memalign_hack

    mlib

    mpegaudio_hp

    network

    nonfree

    postproc

    powerpc_perf

    small

    swscale

    vhook

    x11grab

    zlib

"

THREADS_LIST='

    beosthreads

    os2threads

    pthreads

    w32threads

'

ARCH_LIST='

    alpha

    armv4l

    bfin

    ia64

    m68k

    mips

    parisc

    powerpc

    s390

    sh4

    sparc

    sparc64

    x86

    x86_32

    x86_64

'

ARCH_EXT_LIST='

    altivec

    armv5te

    armv6

    iwmmxt

    mmi

    mmx

    mmx2

    ssse3

    vis

'

HAVE_LIST="

    $ARCH_EXT_LIST

    $THREADS_LIST

    altivec_h

    arpa_inet_h

    bswap

    byteswap_h

    closesocket

    cmov

    conio_h

    dcbzl

    dev_bktr_ioctl_bt848_h

    dev_bktr_ioctl_meteor_h

    dev_ic_bt8xx_h

    dev_video_meteor_ioctl_meteor_h

    dev_video_bktr_ioctl_bt848_h

    dlfcn_h

    dlopen

    ebp_available

    ebx_available

    fast_64bit

    fast_cmov

    fast_unaligned

    fork

    freetype2

    gethrtime

    GetProcessTimes

    getrusage

    imlib2

    inet_aton

    inline_asm

    libdc1394_1

    libdc1394_2

    llrint

    lrint

    lrintf

    machine_ioctl_bt848_h

    machine_ioctl_meteor_h

    malloc_h

    memalign

    mkstemp

    pld

    ppc64

    round

    roundf

    sdl

    sdl_video_size

    socklen_t

    soundcard_h

    poll_h

    sys_mman_h

    sys_select_h

    sys_soundcard_h

    termios_h

    threads

    winsock2_h

"

CMDLINE_SELECT="

    $ARCH_EXT_LIST

    $CONFIG_LIST

    $THREADS_LIST

    cross_compile

    debug

    extra_warnings

    logging

    optimizations

    shared

    static

    stripping

"

CMDLINE_SET='

    arch

    build_suffix

    cc

    cpu

    cross_prefix

    incdir

    libdir

    logfile

    make

    mandir

    prefix

    shlibdir

    source_path

    target_os

'

# code dependency declarations

# architecture extensions

altivec_deps="powerpc"

armv5te_deps="armv4l"

armv6_deps="armv4l"

iwmmxt_deps="armv4l"

mmi_deps="mips"

mmx_deps="x86"

mmx2_deps="x86 mmx"

ssse3_deps="x86"

vis_deps="sparc"

# decoders / encoders

ac3_decoder_deps="gpl"

dxa_decoder_deps="zlib"

flashsv_decoder_deps="zlib"

flashsv_encoder_deps="zlib"

mpeg_xvmc_decoder_deps="xvmc"

png_decoder_deps="zlib"

png_encoder_deps="zlib"

zmbv_decoder_deps="zlib"

zmbv_encoder_deps="zlib"

# external libraries

liba52_decoder_deps="liba52"

liba52bin_decoder_extralibs='$ldl'

libamr_nb_decoder_deps="libamr_nb"

libamr_nb_encoder_deps="libamr_nb"

libamr_wb_decoder_deps="libamr_wb"

libamr_wb_encoder_deps="libamr_wb"

libfaac_encoder_deps="libfaac"

libfaad_decoder_deps="libfaad"

libfaadbin_decoder_extralibs='$ldl'

libgsm_decoder_deps="libgsm"

libgsm_encoder_deps="libgsm"

libgsm_ms_decoder_deps="libgsm"

libgsm_ms_encoder_deps="libgsm"

libmp3lame_encoder_deps="libmp3lame"

libtheora_encoder_deps="libtheora"

libvorbis_encoder_deps="libvorbis"

libx264_encoder_deps="libx264"

libxvid_encoder_deps="libxvid"

mpeg4aac_decoder_deps="libfaad"

# demuxers / muxers

ac3_demuxer_deps="ac3_parser"

audio_beos_demuxer_deps="audio_beos"

audio_beos_demuxer_extralibs="-lmedia -lbe"

audio_beos_muxer_deps="audio_beos"

audio_beos_muxer_extralibs="-lmedia -lbe"

avisynth_demuxer_deps="avisynth"

bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"

dv1394_demuxer_deps="dv1394 dv_demuxer"

libdc1394_demuxer_deps="libdc1394"

libnut_demuxer_deps="libnut"

libnut_muxer_deps="libnut"

mp3_demuxer_deps="mpegaudio_parser"

oss_demuxer_deps_any="soundcard_h sys_soundcard_h"

oss_muxer_deps_any="soundcard_h sys_soundcard_h"

redir_demuxer_deps="network"

rtp_muxer_deps="network rtp_protocol"

rtsp_demuxer_deps="sdp_demuxer"

sdp_demuxer_deps="rtp_protocol mpegts_demuxer"

v4l_demuxer_deps="linux_videodev_h"

v4l2_demuxer_deps="linux_videodev2_h"

vfwcap_demuxer_deps="capCreateCaptureWindow"

vfwcap_demuxer_extralibs="-lvfw32"

x11_grab_device_demuxer_deps="x11grab XShmCreateImage"

x11_grab_device_demuxer_extralibs="-lX11 -lXext"

# protocols

http_protocol_deps="network"

rtp_protocol_deps="udp_protocol"

tcp_protocol_deps="network"

udp_protocol_deps="network"

# filters

movie_filter_deps="avfilter_lavf"

# programs

ffplay_deps="sdl"

ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"

ffserver_extralibs='$ldl'

vhook_extralibs='$ldl'

# default parameters

logfile="config.err"

# installation paths

prefix="/usr/local"

libdir='$(PREFIX)/lib'

shlibdir="$libdir"

incdir='$(PREFIX)/include'

mandir='$(PREFIX)/share/man'

bindir='$(PREFIX)/bin'

# toolchain

cc="gcc"

ar="ar"

nm="nm"

ranlib="ranlib"

make="make"

strip="strip"

asmalign_pot="unknown"

ln_s="ln -sf"

# machine

arch=`uname -m`

cpu="generic"

# OS

target_os=$(tolower $(uname -s))

# libraries

enable zlib

# configurable options

enable debug

enable ffmpeg

enable ffplay

enable ffserver

enable ipv6

enable mpegaudio_hp

enable network

enable optimizations

enable protocols

enable static

enable stripping

vhook="default"

# build settings

SHFLAGS='-shared -Wl,-soname,$(SLIBNAME_WITH_MAJOR)'

VHOOKSHFLAGS='$(SHFLAGS)'

LDLATEFLAGS='-Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'

FFSERVERLDFLAGS=-Wl,-E

LIBPREF="lib"

LIBSUF=".a"

FULLNAME='$(NAME)$(BUILDSUF)'

LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'

SLIBPREF="lib"

SLIBSUF=".so"

SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'

SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'

SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'

LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

# gcc stupidly only outputs the basename of targets with -MM

DEPEND_CMD='$(CC) $(CFLAGS) -MM -MG $< | sed "1s,^,$(@D)/,"'

# find source path

source_path="`dirname \"$0\"`"

enable source_path_used

if test -z "$source_path" -o "$source_path" = "." ; then

    source_path="`pwd`"

    disable source_path_used

else

    source_path="`cd \"$source_path\"; pwd`"

    echo "$source_path" | grep -q '[[:blank:]]' &&

        die "Out of tree builds are impossible with whitespace in source path."

fi

FFMPEG_CONFIGURATION="$@"

find_things(){

    thing=$1

    pattern=$2

    file=$source_path/$3

    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"

}

ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)

DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)

PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)

BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)

MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)

DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)

OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)

INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)

PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)

FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

enable $ARCH_EXT_LIST \

       $DECODER_LIST \

       $ENCODER_LIST \

       $PARSER_LIST \

       $BSF_LIST \

       $DEMUXER_LIST \

       $MUXER_LIST \

       $FILTER_LIST \

       $PROTOCOL_LIST \

       $INDEV_LIST \

       $OUTDEV_LIST \

die_unknown(){

    echo "Unknown option \"$1\"."

    echo "See $0 --help for available options."

    exit 1

}

show_list() {

    suffix=_$1

    shift

    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort

    exit 0

}

for opt do

    optval="${opt#*=}"

    case "$opt" in

    --extra-cflags=*) add_cflags "$optval"

    ;;

    --extra-ldflags=*) add_ldflags "$optval"

    ;;

    --extra-libs=*) add_extralibs "$optval"

    ;;

    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST

    ;;

    --enable-debug=*) debuglevel="$optval"

    ;;

    --enable-*=*|--disable-*=*)

    eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`

    case "$thing" in

        encoder|decoder|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;

        *) die_unknown "$opt" ;;

    esac

    ;;

    --enable-?*|--disable-?*)

    eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`

    if is_in $option $COMPONENT_LIST; then

        eval $action \$$(toupper ${option%s})_LIST

    elif is_in $option $CMDLINE_SELECT; then

        $action $option

    else

        die_unknown $opt

    fi

    ;;

    --list-*)

        NAME="${opt#--list-}"

        is_in $NAME $COMPONENT_LIST || die_unknown $opt

        NAME=${NAME%s}

        eval show_list $NAME \$$(toupper $NAME)_LIST

    ;;

    --help|-h) show_help

    ;;

    *)

    optname="${opt%=*}"

    optname="${optname#--}"

    optname=$(echo "$optname" | sed 's/-/_/g')

    is_in $optname $CMDLINE_SET || die_unknown $opt

    eval $optname='$optval'

    ;;

    esac

done

# OS specific

case $target_os in

    beos|haiku|zeta)

        prefix="$HOME/config"

        # helps building libavcodec

        add_cflags "-DPIC -fomit-frame-pointer"

        # 3 gcc releases known for BeOS, each with ugly bugs

        gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`"

        case "$gcc_version" in

          2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"

            disable mmx

            ;;

          *20010315*) echo "BeBits gcc"

            add_cflags "-fno-expensive-optimizations"

            ;;

        esac

        SHFLAGS=-nostart

        # enable BeOS things

        enable audio_beos

        # no need for libm, but the inet stuff

        # Check for BONE

        # XXX: actually should check for NOT net_server

        if echo $BEINCLUDES | grep -q 'headers/be/bone'; then

            network_extralibs="-lbind -lsocket"

        else

            enable beos_netserver

            network_extralibs="-lnet"

        fi ;;

    sunos)

        FFSERVERLDFLAGS=""

        SHFLAGS='-shared -Wl,-h,$(SLIBNAME_WITH_MAJOR)'

        network_extralibs="-lsocket -lnsl"

        ;;

    netbsd)

        oss_demuxer_extralibs="-lossaudio"

        oss_muxer_extralibs="-lossaudio"

        ;;

    openbsd)

        disable need_memalign

        LIBOBJFLAGS='$(PIC)'

        SHFLAGS='-shared'

        SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF).$(LIBVERSION)'

        SLIBNAME_WITH_VERSION='$(SLIBNAME)'

        SLIBNAME_WITH_MAJOR='$(SLIBNAME)'

        oss_demuxer_extralibs="-lossaudio"

        oss_muxer_extralibs="-lossaudio"

        ;;

    freebsd)

        disable need_memalign

        ;;

    bsd/os)

        osextralibs="-lpoll -lgnugetopt"

        strip="strip -d"

        ;;

    darwin)

        disable need_memalign

        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'

        VHOOKSHFLAGS='-dynamiclib -Wl,-single_module -flat_namespace -undefined suppress -Wl,-install_name,$(SHLIBDIR)/vhook/$$@'

        strip="strip -x"

        FFLDFLAGS="-Wl,-dynamic,-search_paths_first"

        SLIBSUF=".dylib"

        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'

        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'

        FFSERVERLDFLAGS=-Wl,-bind_at_load

        ;;

    mingw32*)

        target_os=mingw32

        shlibdir="$bindir"

        VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'

        VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'

        if enabled swscale; then

            VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"

            VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"

        fi

        disable ffserver

        SLIBPREF=""

        SLIBSUF=".dll"

        EXESUF=".exe"

        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

        SLIB_EXTRA_CMD='-lib /machine:i386 /def:$$(@:$(SLIBSUF)=.def)'

        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'

        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'

        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'

        ;;

    cygwin*)

        target_os=cygwin

        shlibdir="$bindir"

        VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'

        VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'

        if enabled swscale; then

            VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"

            VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"

        fi

        EXESUF=".exe"

        SLIBPREF="cyg"

        SLIBSUF=".dll"

        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'

        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'

        SHFLAGS='-shared -Wl,--enable-auto-image-base'

        ;;

    *-dos|freedos|opendos)

        disable ffplay ffserver vhook

        disable $INDEV_LIST $OUTDEV_LIST

        network_extralibs="-lsocket"

        EXESUF=".exe"

        ;;

    linux)

        LDLATEFLAGS="-Wl,--as-needed $LDLATEFLAGS"

        enable dv1394

        ;;

    irix*)

        target_os=irix

        ranlib="echo ignoring ranlib"

        ;;

    os/2*)

        strip="lxlite"

        ln_s="cp -f"

        EXESUF=".exe"

        FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"

        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'

        FFSERVERLDFLAGS=""

        LIBSUF="_s.a"

        SLIBPREF=""

        SLIBSUF=".dll"

        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'

        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'

        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \

          echo PROTMODE >> $(SUBDIR)$(NAME).def; \

          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \

          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \

          echo EXPORTS >> $(SUBDIR)$(NAME).def; \

          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'

        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \

          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'

        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'

        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'

        disable vhook

        ;;

    interix)

        disable vhook

        ;;

    *)

        target_os="${target_os}-UNKNOWN"

        ;;

esac

# set temporary file name

if test ! -z "$TMPDIR" ; then

    TMPDIR1="${TMPDIR}"

elif test ! -z "$TEMPDIR" ; then

    TMPDIR1="${TEMPDIR}"

else

    TMPDIR1="/tmp"

fi

TMPC="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"

TMPE="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}${EXESUF}"

TMPH="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"

TMPO="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"

TMPS="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"

TMPSH="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.sh"

add_extralibs $osextralibs

disabled logging && logfile=/dev/null

echo "# $0 $@" >$logfile

set >>$logfile

case "$arch" in

    i386|i486|i586|i686|i86pc|BePC)

        arch="x86_32"

        enable fast_unaligned

    ;;

    x86_64|amd64)

        arch="x86_32"

        enable fast_unaligned

        check_cc <<EOF && enable fast_64bit && arch="x86_64"

        int test[sizeof(char*) - 7];

EOF

    ;;

    # armv4l is a subset of armv[567]*l

    arm|armv[4567]*l)

        arch="armv4l"

    ;;

    alpha)

        arch="alpha"

        enable fast_64bit

    ;;

    "Power Macintosh"|ppc|powerpc)

        arch="powerpc"

    ;;

    ppc64)

        arch="powerpc"

        enable fast_64bit

    ;;

    mips|mipsel|IP*)

        arch="mips"

    ;;

    sun4u|sparc64)

        arch="sparc64"

        enable fast_64bit

    ;;

    sparc)

        arch="sparc"

    ;;

    sh4)

        arch="sh4"

    ;;

    parisc)

        arch="parisc"

    ;;

    parisc64)

        arch="parisc"

        enable fast_64bit

    ;;

    s390|s390x)

        arch="s390"

    ;;

    m68k)

        arch="m68k"

    ;;

    ia64)

        arch="ia64"

        enable fast_64bit

    ;;

    bfin)

        arch="bfin"

    ;;

    *)

        arch="unknown"

    ;;

esac

enable $arch

enabled_any x86_32 x86_64 && enable x86

enabled     sparc64       && enable sparc

# Combine FFLDFLAGS and the LDFLAGS environment variable.

LDFLAGS="$FFLDFLAGS $LDFLAGS"

test -n "$cross_prefix" && enable cross_compile

cc="${cross_prefix}${cc}"

ar="${cross_prefix}${ar}"

nm="${cross_prefix}${nm}"

ranlib="${cross_prefix}${ranlib}"

strip="${cross_prefix}${strip}"

# we need to build at least one lib type

if ! enabled_any static shared; then

    cat <<EOF

At least one library type must be built.

Specify --enable-static to build the static libraries or --enable-shared to

build the shared libraries as well. To only build the shared libraries specify

--disable-static in addition to --enable-shared.

EOF

    exit 1;

fi

disabled static && LIBNAME=""

if enabled_any libfaad libfaadbin ; then

    if check_header faad.h; then

        check_cc << EOF

#include <faad.h>

#ifndef FAAD2_VERSION

ok faad1

#endif

int main(void) { return 0; }

EOF

        test $? = 0 && enable libfaad2

    else

        die "FAAD test failed."

    fi

fi

if ! enabled gpl; then

    die_gpl_disabled(){

        name=$1

        shift

        enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."

    }

    die_gpl_disabled "The Postprocessing code" postproc

    die_gpl_disabled "liba52"                  liba52

    die_gpl_disabled "libx264"                 libx264

    die_gpl_disabled "libxvidcore"             libxvid

    die_gpl_disabled "FAAD2"                   libfaad2

    die_gpl_disabled "The X11 grabber"         x11grab

    die_gpl_disabled "The software scaler"     swscale

fi

if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then

    die "libamr is nonfree and --enable-nonfree is not specified."

fi

check_deps $ARCH_EXT_LIST

test -z "$need_memalign" && need_memalign="$mmx"

#Darwin CC versions

if test $target_os = darwin; then

    if $cc -v 2>&1 | grep -q xlc; then

        add_cflags "-qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto"

    else

        add_cflags "-pipe"

        check_cflags "-force_cpusubtype_ALL"

        check_cflags "-Wno-sign-compare"

        enabled shared || add_cflags -mdynamic-no-pic

    fi

fi

disabled optimizations || add_cflags -fomit-frame-pointer

# Add processor-specific flags

if test $cpu != "generic"; then

    warn_altivec(){

        $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";

    }

    case $cpu in

        601|ppc601|PowerPC601)

            add_cflags "-mcpu=601"

            warn_altivec enabled PPC601

        ;;

        603*|ppc603*|PowerPC603*)

            add_cflags "-mcpu=603"

            warn_altivec enabled PPC603

        ;;

        604*|ppc604*|PowerPC604*)

            add_cflags "-mcpu=604"

            warn_altivec enabled PPC604

        ;;

        G3|g3|75*|ppc75*|PowerPC75*)

            add_cflags "-mcpu=750 -mpowerpc-gfxopt"

            warn_altivec enabled PPC75x

        ;;

        G4|g4|745*|ppc745*|PowerPC745*)

            add_cflags "-mcpu=7450 -mpowerpc-gfxopt"

            warn_altivec disabled PPC745x

        ;;

        74*|ppc74*|PowerPC74*)

            add_cflags "-mcpu=7400 -mpowerpc-gfxopt"

            warn_altivec disabled PPC74xx

        ;;

        G5|g5|970|ppc970|PowerPC970|power4*|Power4*)

            add_cflags "-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"

            warn_altivec disabled PPC970

            enable ppc64

        ;;

        Cell|CELL|cell)

            add_cflags "-mcpu=cell"

            warn_altivec disabled Cell

            enable ppc64

        ;;

        # targets that do NOT support conditional mov (cmov)

        i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)

            add_cflags "-march=$cpu"

            disable cmov

        ;;

        # targets that do support conditional mov (cmov)

        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)

            add_cflags "-march=$cpu"

            enable cmov

            enable fast_cmov

        ;;

        # targets that do support conditional mov but on which it's slow

        pentium4|pentium4m|prescott|nocona)

            add_cflags "-march=$cpu"

            enable cmov

            disable fast_cmov

        ;;

        sparc64)

            add_cflags "-mcpu=v9"

        ;;

        arm*)

            add_cflags "-mcpu=$cpu"

        ;;

        *)

            echo "WARNING: Unknown CPU \"$cpu\", ignored."

        ;;

    esac

fi

gnu_make(){

    $1 --version 2>&1 | grep -q GNU

}

if ! gnu_make $make; then

    gnu_make gmake && make=gmake || die "GNU make not found."

fi

# make sure we can execute files in $TMPDIR

cat >$TMPSH 2>>$logfile <<EOF

#! /bin/sh

EOF

chmod +x $TMPSH >>$logfile 2>&1

if ! $TMPSH >>$logfile 2>&1; then

    cat <<EOF

Unable to create and execute files in $TMPDIR1.  Set the TMPDIR environment

variable to another directory and make sure that $TMPDIR1 is not mounted

noexec.

EOF

    die "Sanity test failed."

fi

rm $TMPSH

# compiler sanity check

check_exec <<EOF

int main(void){ return 0; }

EOF

if test "$?" != 0; then

    echo "$cc is unable to create an executable file."

    if test -z "$cross_prefix" && ! enabled cross_compile ; then

        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."

        echo "Only do this if you know what cross compiling means."

    fi

    die "C compiler test failed."

fi

check_cc <<EOF || die "Symbol mangling check failed."

int ff_extern;

EOF

sym=$($nm -P -g $TMPO)

extern_prefix=${sym%%ff_extern*}

check_asm inline_asm '""'

if enabled x86; then

    # check whether EBP is available on x86

    # As 'i' is stored on the stack, this program will crash

    # if the base pointer is used to access it because the

    # base pointer is cleared in the inline assembly code.

    check_exec_crash <<EOF && enable ebp_available

    volatile int i=0;

    asm volatile (

        "xorl %%ebp, %%ebp"

    ::: "%ebp");

    return i;

EOF

    # check wether EBX is available on x86

    check_asm ebx_available '"":::"%ebx"'

    # check whether binutils is new enough to compile SSSE3/MMX2

    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'

    enabled mmx2  && check_asm mmx2  '"movss %xmm0, %xmm0"'

    check_asm bswap '"bswap %%eax" ::: "%eax"'

fi

# check for assembler specific support

if test $arch = "powerpc"; then

check_cc <<EOF && enable dcbzl

int main(void) {

    register long zero = 0;

    char data[1024];

    asm volatile("dcbzl %0, %1" : : "b" (data), "r" (zero));

return 0;

}

EOF

fi

# check for SIMD availability

# AltiVec flags: The FSF version of GCC differs from the Apple version

if enabled altivec; then

    check_cflags -maltivec -mabi=altivec &&

        check_header altivec.h ||

        check_cflags -faltivec

    # check if our compiler supports Motorola AltiVec C API

    enabled altivec_h &&

        inc_altivec_h="#include <altivec.h>" ||

        inc_altivec_h=

    check_cc <<EOF || disable altivec

$inc_altivec_h

int main(void) {

    vector signed int v1, v2, v3;

    v1 = vec_add(v2,v3);

    return 0;

}

EOF

fi

# We have to check if pld is a nop and disable it.

enabled armv4l  && check_asm pld     '"pld [r0]"'

enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'

enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'

enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'

enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'

enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc

enabled vis && add_cflags "-mcpu=ultrasparc -mtune=ultrasparc"

# ---

# big/little-endian test

check_cc <<EOF || die "endian test failed"

unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';

EOF

od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

# ---

# check availability of some header files

if check_func dlopen; then

    ldl=

elif check_func dlopen -ldl; then

    ldl=-ldl

fi

check_func  fork

check_func  gethrtime

check_func  getrusage

check_func  inet_aton $network_extralibs

check_func  memalign

check_func  mkstemp

check_func2 windows.h GetProcessTimes

check_header byteswap.h

check_header conio.h

check_header dlfcn.h

check_header malloc.h

check_header sys/mman.h

check_header termios.h

if ! enabled_any memalign memalign_hack && enabled need_memalign ; then

    die "Error, no memalign() but SSE enabled, disable it or use --enable-memalign-hack."

fi

enabled zlib && check_lib zlib.h zlibVersion -lz || disable zlib

# ffserver uses poll(),