#!/bin/sh
#
# MythTV configure script, based on the 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"
<<BLOCK_QUOTE
  echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  echo "  --disable-logging        do not log configure debug information"
BLOCK_QUOTE
  #echo "  --log[=FILE|yes|no]      log tests and output to FILE [config.err]"
  echo "  --previous               use previous configure parameters if possible"
  echo "  --compile-type=CTYPE     one of release, profile, debug [$compile_type]"
  echo "                           NOTE: profile is for sampling profilers"
  echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
  echo "  --runprefix=PREFIX       prefix to be used at runtime (e.g. .. or /myth/latest)"
  echo "  --libdir-name=LIBNAME    search/install libraries in PREFIX/LIBNAME [$libdir_name]"
  echo "  --disable-ccache         disable compiler cache (ccache)"
  echo "  --disable-distcc         disable distributed compilation (distcc)"
<<BLOCK_QUOTE
  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 [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]"
BLOCK_QUOTE
  echo
  echo "External library support:"
<<BLOCK_QUOTE
  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-libdirac        enable Dirac support via libdirac [default=no]"
  echo "  --enable-libfaac         enable FAAC support via libfaac [default=no]"
BLOCK_QUOTE
  echo "  --enable-libfaad         enable AAC decoding support via libfaad [default=no]"
<<BLOCK_QUOTE
  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-libschroedinger enable Dirac support via libschroedinger [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]"
BLOCK_QUOTE
  echo ""
  echo "Advanced options (experts only):"
<<BLOCK_QUOTE
  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 [$cc]"
BLOCK_QUOTE
  echo "  --qmake=QMAKE            use specified qmake [$qmake]"
  echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
  echo "  --extra-cxxflags=ECXFLAGS add ECXXFLAGS to list of flags for C++ compile"
  echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
  echo "  --enable-symbol-visibility enables symbol visibility options"
<<BLOCK_QUOTE
  echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
  echo "  --build-suffix=SUFFIX    suffix for application specific build []"
BLOCK_QUOTE
  echo "  --arch=ARCH              select architecture  [$arch]"
  echo "  --tune=CPU               tune instruction usage for a particular CPU [$tune]"
  echo "  --cpu=CPU                selects the minimum cpu required (affects"
  echo "                           instruction selection, may crash on older CPUs)"
<<BLOCK_QUOTE
  echo "  --enable-powerpc-perf    enable performance report on PPC"
  echo "                           (requires enabling PMC)"
BLOCK_QUOTE
  echo "  --enable-proc-opt        enable processor specific compilation"
  echo "  --disable-mmx            disable MMX usage"
  echo "  --disable-mmx2           disable MMX2 usage"
  echo "  --disable-ssse3          disable SSSE3 usage"
<<BLOCK_QUOTE
  echo "  --disable-armv5te        disable armv5te usage"
  echo "  --disable-armv6          disable armv6 usage"
  echo "  --disable-armvfp         disable ARM VFP usage"
  echo "  --disable-iwmmxt         disable iwmmxt usage"
  echo "  --disable-altivec        disable AltiVec usage"
BLOCK_QUOTE
  echo ""
  echo "  --disable-audio-oss      disable OSS audio support"
  echo "  --disable-audio-alsa     disable ALSA audio support"
  echo "  --disable-audio-arts     disable aRts audio support"
  echo "  --disable-audio-jack     disable JACK audio support"
  echo "  --enable-valgrind        disables timeouts for valgrind memory debugging"
  # Don't print disable frontend/backend options, these
  # cause breakage and people use them inappropriately. -- dtk
  #echo "  --disable-frontend       disable frontend [breaks dependency checking, previews]"
  #echo "  --disable-backend        disable backend  [breaks dependency checking]"
  echo "  --disable-lirc           disable lirc support (Infrared Remotes)"
  echo "  --disable-joystick-menu  disable joystick menu"
  echo "  --disable-firewire       disable support for FireWire cable boxes"
  echo "  --disable-iptv           disable support for recording RTSP/UDP/RTP streams"
#  echo "  --enable-dbox2           enable support for Nokia DBOX2 DVB boxes (or compatibles)"
  echo "  --disable-hdhomerun      disable support for HDHomeRun boxes"
  echo "  --disable-v4l            disable Video4Linux support"
  echo "  --disable-ivtv           disable ivtv support (PVR-x50) req. v4l support"
  echo "  --disable-hdpvr          disable HD-PVR support"
  echo "  --disable-dvb            disable DVB support"
  echo "  --dvb-path=HDRLOC        location of directory containing"
  echo "                           'linux/dvb/frontend.h', not the"
  echo "                           directory with frontend.h [$dvb_path]"
  echo "  --disable-x11            disable X11 support"
  echo "  --x11-path=X11LOC        location of X11 include files [$x11_include_path-path]"
#  echo "  --enable-glx-procaddrarb use glXGetProcAddressARB() instead of glXGetProcAddress()"
  echo "  --disable-xrandr         disable X11 resolution switching"
  echo "  --disable-xv             disable XVideo   (X11 video output accel.)"
  echo "  --disable-xvmc           disable XvMC     (Linux/BSD MPEG accel.)"
  echo "  --disable-xvmcw          disable XvMC Wrapper"
  echo "                           (use --xvmc-lib if autodetection fails)"
  echo "  --enable-xvmc-pro        enable XvMC for the Unichrome Pro chipset"
  echo "                           (NOT Unichrome chipset)"
  echo "  --enable-xvmc-opengl     enable nVidia XvMC OpenGL texture method"
  echo "  --enable-vdpau           enable NVidia VDPAU hardware acceleration."
  echo "  --xvmc-lib=LIB           XvMC library override (for crosscompiling)"
  #echo "  --disable-xvmc-vld       disable XvMC-VLD (VIA Epia MPEG accel.)"
  echo "  --disable-opengl-video   disable OpenGL based video display "
  echo "  --enable-mac-accel       enable Mac OS X MPEG acceleration"
  echo "  --enable-opengl-vsync    enable OpenGL vsync method"
  echo "  --disable-directfb       disable DirectFB (Linux non-X11 video)"
  echo "  --enable-directx         enable DirectX   (Microsoft video)"
  echo ""
  echo "  --enable-mac-bundle      produce standalone OS X apps (e.g. mythfrontend.app)"
  echo ""
  echo "  --with-bindings=LIST     install the bindings specified in the"
  echo "                           comma-separated list"
  echo "                           Supported bindings: perl, python"
<<BLOCK_QUOTE
  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-bzlib          disable bzlib [default=no]"
  echo "  --disable-vhook          disable video hooking support"
  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 "  --disable-debug          disable debugging symbols"
  echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
  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."
BLOCK_QUOTE
  exit 1
}

log(){
    echo "$@" >> $logfile
}

log_file(){
    log BEGIN $1
    pr -n -t $1 >> $logfile
    log END $1
}

echolog(){
    log "$@"
    echo "$@"
}

die(){
    echolog "$@"
    cat <<EOF
If you think configure made a mistake, make sure you are using the latest
version from SVN.  If the latest version fails, report the problem to the
mythtv-dev@mythtv.org mailing list or IRC #mythtv on irc.freenode.net
EOF
    if disabled logging; then
        cat <<EOF
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
EOF
    else
cat <<EOF
Include the log file "$logfile" produced by configure as this will help
solving the problem.
EOF
    fi
    rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH
    rm -f $TMPCXX
    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(){
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xyes"
}

disabled(){
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "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
}

set_default(){
    for opt; do
        eval test -z "\$$opt" && eval $opt=\$${opt}_default
    done
}

is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}

check_deps(){
    for cfg; do
        cfg="${cfg#!}"
        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_ecflags(){
    append ECFLAGS "$@"
}

add_optflags(){
    append OPTFLAGS "$@"
}

add_archflags(){
    append ARCHFLAGS "$@"
}

add_cppflags(){
    append ECXXFLAGS "$@"
}

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 $ECFLAGS $OPTFLAGS "$@" -c -o $TMPO $TMPC
}

check_cpp(){
    log check_cpp "$@"
    cat > $TMPCXX
    log_file $TMPCXX
    check_cmd $cxx $CFLAGS $ECXXFLAGS "$@" -E -o $TMPO $TMPCXX
}

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_yasm(){
    log check_yasm "$@"
    echo "$1" > $TMPS
    log_file $TMPS
    shift 1
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
}

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_ecflags(){
    log check_ecflags "$@"
    check_cc $@ <<EOF && add_ecflags "$@" || echolog "WARNING! An unknown C compiler flag in: \"$@\". Option(s) will be ignored."
int x;
EOF
}

check_optflags(){
    log check_optflags "$@"
    check_cc "$@" <<EOF && add_optflags "$@"
int x;
EOF
}

check_archflags(){
    log check_archflags "$@"
    check_cc "$@" <<EOF && add_archflags "$@"
int x;
EOF
}

check_mtune_mcpu(){
    log check_mtune_mcpu "$@"
    cpu_type="$1"
    shift
    check_archflags "-mtune=$cpu_type" "$@" || check_archflags "-mcpu=$cpu_type" "$@"
}

check_cppflags(){
    log check_cppflags "$@"
    check_cpp $@ <<EOF && add_cppflags "$@" || echolog "WARNING! An unknown C++ compiler flag in: \"$@\". Option(s) will be ignored."
class X {};
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"
}


#deprecated, use check_lib or check_lib2 instead
has_library()
{
    if test -f /etc/ld.so.conf ; then
        LIBPATHS=`cat /etc/ld.so.conf | grep -v "#" | grep -v "include"`
    else
        LIBPATHS=''
    fi

    LIBPATHS="$LIBPATHS `echo $LD_LIBRARY_PATH | sed s/':'/' '/g` "
    # Mac OS X has a different variable for this:
    LIBPATHS="$LIBPATHS `echo $DYLD_LIBRARY_PATH | sed s/':'/' '/g` "

    # recurse down just one level, should be enough in most cases
    if test -f /etc/ld.so.conf ; then
        INCL=`cat /etc/ld.so.conf | grep -v "#" | grep  "^include"`
        SRCH=`echo "$INCL" | sed '{ s/^include \//\//; s/^include /\/etc\//}'`
        for x in $SRCH ; do
            LP_APPEND=`cat $x | grep -v "#" | grep -v "^include"`
            LIBPATHS="$LIBPATHS $LP_APPEND"
        done
    fi

    LIBPATHS="`echo $LIBPATHS /$libdir_name /usr/$libdir_name /usr/local/$libdir_name /usr/X11R6/$libdir_name | sed s/'\/ '/' '/g` "

    HAS_IT="no"
    for LIBPATH in $LIBPATHS ; do
        if test x`ls $LIBPATH/$1* 2> /dev/null | head -n 1` != x"" ; then
            HAS_IT="yes"
        fi
    done
    expr $HAS_IT : "yes" > /dev/null
}

#deprecated, use check_header instead
has_header()
{
    HPATHS="/usr/local/include /usr/include /usr/include/g++-v3 /usr/X11R6/include"
    INCL=`echo $DYLD_LIBRARY_PATH $LD_LIBRARY_PATH | sed s/':'/' '/g`
    HPATHS="$HPATHS "$(echo $INCL | sed "s/$libdir_name/include/g")

    HAS_IT="no"
    for HPATH in $HPATHS ; do
        if test x`ls $HPATH/$1* 2> /dev/null | head -n 1` != x"" ; then
            HAS_IT="yes"
        fi
    done
    expr $HAS_IT : "yes" > /dev/null
}


x86_mmx_cpus="pentium-mmx,pentium2,pentium3,pentium3m,pentium-m"
x86_mmx_cpus="$x86_mmx_cpus,pentium4,pentium4m,prescott"
x86_mmx_cpus="$x86_mmx_cpus,athlon,athlon-xp,athlon-tbird,athlon-4,athlon-mp,"
x86_mmx_cpus="$x86_mmx_cpus,c3,c3-2,k6,k6-2,k6-3"

x86_cpus="i386,i486,i586,i686,pentium,pentiumpro,${x86_mmx_cpus}"

x86_64_cpus="x86-64,athlon64,k8,opteron,athlon64-sse3,k8-sse3,opteron-sse3"
x86_64_cpus="$x86_64_cpus,barcelona,athlon-fx,nocona,core2"

is_x86_cpu() {
    expr ",${x86_cpus}," : ".*,$1," > /dev/null
}

is_x86_64_cpu() {
    expr ",${x86_64_cpus}," : ".*,$1," > /dev/null
}

is_x86_mmx() {
    expr ",${x86_mmx_cpus}," : ".*,$1," > /dev/null || is_x86_64_cpu "$1"
}


# CONFIG_LIST contains configurable options, while HAVE_LIST is for
# system-dependent things.

COMPONENT_LIST="
    bsfs
    decoders
    demuxers
    encoders
    filters
    indevs
    muxers
    outdevs
    parsers
    protocols
"

CONFIG_LIST="
    $COMPONENT_LIST
    avfilter
    avfilter_lavf
    avisynth
    beos_netserver
    bzlib
    darwin
    ffmpeg
    ffplay
    ffserver
    gpl
    gprof
    gray
    hardcoded_tables
    ipv6
    liba52
    liba52bin
    libamr_nb
    libamr_wb
    libdc1394
    libdirac
    libfaac
    libfaad
    libfaadbin
    libgsm
    libmp3lame
    libnut
    libschroedinger
    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
    armvfp
    iwmmxt
    mmi
    mmx
    mmx2
    neon
    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
    ftime
    gethrtime
    getifaddrs
    GetProcessTimes
    getrusage
    gettimeofday
    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
    stdint_h
    sys_mman_h
    sys_resource_h
    sys_select_h
    sys_soundcard_h
    termios_h
    threads
    winsock2_h
    vdpau
    yasm
"

MYTHTV_CONFIG_LIST='
    backend
    dbox2
    directfb
    directx
    dvb
    dvdv
    firewire
    fribidi
    frontend
    glx_proc_addr_arb
    hdhomerun
    hdpvr
    iptv
    ivtv
    joystick_menu
    libfftw3
    lirc
    mheg
    opengl_video
    opengl_vsync
    qtwebkit
    v4l
    valgrind
    x11
    xrandr
    xv
    xvmc
    xvmc_opengl
    xvmc_vld
    xvmcw
'

MYTHTV_LIST='
    audio_alsa
    audio_arts
    audio_jack
    audio_oss
    ffmpeg_pthreads
    mac_bundle
    proc_opt
    silent_cc
    symbol_visibility
    xvmc_pro
'

USING_LIST='
    appleremote
    bindings_perl
    bindings_python
    darwin_da
    dvdv
    opengl
    vdpau
'

CMDLINE_SELECT="
    $ARCH_EXT_LIST
    $CONFIG_LIST
    $THREADS_LIST
    cross_compile
    $MYTHTV_LIST
    $MYTHTV_CONFIG_LIST
    debug
    extra_warnings
    logging
    optimizations
    shared
    static
    stripping
    vdpau
"

PATHS_LIST='
    bindir
    incdir
    libdir
    mandir
    prefix
    runprefix
    shlibdir
'

CMDLINE_SET="
    $PATHS_LIST
    arch
    build_suffix
    cc
    cpu
    cross_prefix
    logging
    source_path
    target_os
"

# code dependency declarations

# architecture extensions
altivec_deps="powerpc"
armv5te_deps="armv4l"
armv6_deps="armv4l"
armvfp_deps="armv4l"
iwmmxt_deps="armv4l"
mmi_deps="mips"
mmx_deps="x86"
mmx2_deps="x86 mmx"
neon_deps="armv4l"
ssse3_deps="x86"
vis_deps="sparc"

# system headers and functions
byteswap_h_deps="!armv4l"

# decoders / encoders
aac_decoder_deps="!libfaad !libfaadbin"
ac3_decoder_deps="gpl !liba52"
dxa_decoder_deps="zlib"
eac3_decoder_deps="gpl"
flashsv_decoder_deps="zlib"
flashsv_encoder_deps="zlib"
h264_vdpau_decoder_deps="vdpau"
mlp_decoder_deps="mlp_parser"
mpeg_dvdv_decoder_deps="dvdv"
mpeg_vdpau_decoder_deps="vdpau"
mpeg_xvmc_decoder_deps="xvmc"
mpeg_xvmc_vld_decoder_deps="xvmc_vld"
png_decoder_deps="zlib"
png_encoder_deps="zlib"
snow_decoder_deps="disabled_in_mythtv"
vc1_vdpau_decoder_deps="vdpau"
wmv3_vdpau_decoder_deps="vdpau"
zmbv_decoder_deps="zlib"
zmbv_encoder_deps="zlib"

# external libraries
liba52_decoder_deps="liba52"
liba52bin_decoder_extralibs='$ldl'
libamr_nb_decoder_deps="libamr_nb"
libamr_nb_encoder_deps="libamr_nb"
libamr_wb_decoder_deps="libamr_wb"
libamr_wb_encoder_deps="libamr_wb"
libdirac_decoder_deps="libdirac !libschroedinger"
libdirac_encoder_deps="libdirac"
libfaac_encoder_deps="libfaac"
libfaad_decoder_deps="libfaad"
libfaadbin_decoder_extralibs='$ldl'
libgsm_decoder_deps="libgsm"
libgsm_encoder_deps="libgsm"
libgsm_ms_decoder_deps="libgsm"
libgsm_ms_encoder_deps="libgsm"
libmp3lame_encoder_deps="libmp3lame"
libschroedinger_decoder_deps="libschroedinger"
libschroedinger_encoder_deps="libschroedinger"
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"
dirac_demuxer_deps="dirac_parser"
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'

# mythtv dependencies
audio_oss_deps_any="soundcard_h sys_soundcard_h"
dbox2_deps="backend"
dvb_deps="backend"
firewire_deps="backend"
iptv_deps="backend"
ivtv_deps="backend v4l"
hdpvr_deps="backend v4l"
hdhomerun_deps="backend"
mpegtsraw_demuxer_deps="merge_libavformat_mpegts_c"
opengl_deps_any="agl_h GL_gl_h"
opengl_deps_any="darwin windows x11"
opengl_video_deps="opengl"
opengl_vsync_deps="opengl"
v4l_deps="backend"
vdpau_deps="x11 vdpau_vdpau_h"
xrandr_deps="x11"
xv_deps="x11"
xvmc_deps="xv X11_extensions_XvMClib_h"
xvmc_opengl_deps="opengl xvmc"
xvmc_pro_deps="xvmc X11_extensions_vldXvMC_h"
xvmc_vld_deps="xvmc X11_extensions_vldXvMC_h"
xvmcw_deps="xvmc"

# default parameters
pre_logfile="config.ep"
logfile="$pre_logfile"
compile_type="release"

# installation paths
prefix_default="/usr/local"
bindir_default='${prefix}/bin'
incdir_default='$(prefix)/include/mythtv'
mandir_default='$(prefix)/share/man'

libdir_name="lib"

# toolchain
cc="gcc"
yasmexe="yasm"
cxx="g++"
ccache="yes"
distcc="yes"
ar="ar"
nm="nm"
ranlib="ranlib"
qmake="qmake"
strip="strip"
asmalign_pot="unknown"
ln_s="ln -sf"
objformat="elf"

if test x"$CC" != x"" ; then
    cc="$CC"
fi

if test x"$CXX" != x"" ; then
    cxx="$CXX"
fi

# machine
arch=`uname -m`
arch_raw="$arch"
cpu="generic"
processor=`uname -p 2>/dev/null`
processor_flags=""
tune="generic"

if test -f /proc/cpuinfo ; then
    if test x"$processor" = x"" -o x"$processor" = x"$arch_raw" -o \
            x"$processor" = x"unknown" ; then
        processor=`cat /proc/cpuinfo | grep "model name" | head -n 1`
    fi
    processor_flags=`cat /proc/cpuinfo | grep "flags" | head -n 1`
fi

# Mac OS X equivalent
if test -f /usr/bin/hostinfo ; then
    arch=`arch`
    if test x"$arch" = x"ppc" -o x"$arch" = x"ppc64" ; then
        processor=`/usr/bin/hostinfo | grep "Processor type:"`
        processor=${processor#Processor type: *}
        processor=${processor% (*}
        tune=$processor
    else
            # 10.4 only:
            processor=`/usr/sbin/sysctl -n machdep.cpu.model_string 2>/dev/null`
            if test x"$processor" = x"" ; then
                # On 10.5, this contains the type of CPU also:
                processor=`/usr/sbin/sysctl -n machdep.cpu.brand_string`
            fi
            processor_flags=`/usr/sbin/sysctl -n machdep.cpu.features`
            processor_flags=`echo $processor_flags | tr "[A-Z]" "[a-z]"`
    fi
fi

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

# mythtv settings
CONFIG_DEFINES=""
CONFIG_INCLUDEPATH=""
PROFILEFLAGS=""

audio_alsa="default"
audio_alsa_libs="-lasound"
audio_arts="default"
audio_jack="default"
audio_jack_libs="-ljack"

enable audio_oss
enable bindings_perl
enable bindings_python
disable dbox2
enable directfb
enable dvb
enable ffmpeg_pthreads
enable firewire
enable frontend
enable hdhomerun
enable hdpvr
enable iptv
enable ivtv
enable lamemp3
enable lirc
enable mheg
enable opengl
enable opengl_video
enable v4l
enable x11
enable xrandr
enable xv
enable xvmc
enable xvmc_vld
enable xvmcw

# mythtv paths
dvb_path="/usr/include"
x11_include_path="/usr/X11R6/include"
xvmc_lib=""

# libraries
enable bzlib
enable zlib

# configurable options
enable gpl
enable ipv6
enable mpegaudio_hp
enable network
enable optimizations
enable protocols
enable shared
enable stripping
vhook="default"

# build settings
add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
SHFLAGS='-shared -Wl,-soname,$$(@F)'
VHOOKSHFLAGS='$(SHFLAGS)'
FFSERVERLDFLAGS=-Wl,-E
LIBPREF="lib"
LIBSUF=".a"
FULLNAME='$(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 $< | sed -e "/^\#.*/d" -e "1s,^,$(@D)/," -e "s,\\([[:space:]]\\)\\(version\\.h\\),\\1\$$(BUILD_ROOT_REL)/\\2,"'

# 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=$(find_things  encoder  ENC      libs/libavcodec/allcodecs.c)
DECODER_LIST=$(find_things  decoder  DEC      libs/libavcodec/allcodecs.c)
PARSER_LIST=$(find_things   parser   PARSER   libs/libavcodec/allcodecs.c)
BSF_LIST=$(find_things      bsf      BSF      libs/libavcodec/allcodecs.c)
MUXER_LIST=$(find_things    muxer    _MUX     libs/libavformat/allformats.c)
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libs/libavformat/allformats.c)
OUTDEV_LIST="" #$(find_things   muxer    _MUX     libs/libavdevice/alldevices.c)
INDEV_LIST="" #$(find_things    demuxer  DEMUX    libs/libavdevice/alldevices.c)
PROTOCOL_LIST=$(find_things protocol PROTOCOL libs/libavformat/allformats.c)
FILTER_LIST="" #$(find_things   filter   FILTER   libs/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
}

if [ -e config.log ] ; then
    PCONF=`cat config.log | tail -n 1 | grep configure`
    if test x"$PCONF" != x"" ; then
        PCONF=`echo $PCONF | sed 's/.\/configure//g'`
    fi
    for opt do
        if test x"$opt" != x"--prev" -a x"$opt" != x"--previous" ; then
            OTHOPT="$OTHOPT$opt"
        fi
        if test x"$opt" = x"--prev" -o x"$opt" = x"--previous" ; then
            if test x"$PCONF" != "--prev" ; then
                PREV="yes";
            fi
        fi
    done
    if test x"$PREV" = x"yes"; then
        echo "Options: $PCONF $OTHOPT"
        ./configure $PCONF $OTHOPT
        exit
    fi
fi

# set temporary file name
if test ! -z "$TMPDIR" ; then
    TMPDIR1="${TMPDIR}"
elif test ! -z "$TEMPDIR" ; then
    TMPDIR1="${TEMPDIR}"
else
    TMPDIR1="/tmp"
fi

TMPC="${TMPDIR1}/mythtv-conf-${RANDOM}-$$-${RANDOM}.c"
TMPE="${TMPDIR1}/mythtv-conf-${RANDOM}-$$-${RANDOM}${EXESUF}"
TMPH="${TMPDIR1}/mythtv-conf-${RANDOM}-$$-${RANDOM}.h"
TMPO="${TMPDIR1}/mythtv-conf-${RANDOM}-$$-${RANDOM}.o"
TMPS="${TMPDIR1}/mythtv-conf-${RANDOM}-$$-${RANDOM}.S"
TMPSH="${TMPDIR1}/mythtv-conf-${RANDOM}-$$-${RANDOM}.sh"
TMPCXX="${TMPDIR1}/mythtv-conf-${RANDOM}-$$-${RANDOM}.c"

for opt do
    optval="${opt#*=}"
    case "$opt" in
    --compile-type=*) compile_type="$optval"
    ;;
    --libdir-name=*) libdir_name="$optval"
    ;;
    --cxx=*) cxx="$optval"
    ;;
    --qmake=*) qmake="$optval"
    ;;
    --extra-cflags=*) check_ecflags "$optval"
    ;;
    --extra-cxxflags=*) check_cppflags "$optval"
    ;;
    --extra-ldflags=*) add_ldflags "$optval"
    ;;
    --extra-libs=*) add_extralibs "$optval"
    ;;
    --arch=*) arch="$optval" && arch_raw="$optval" && enable cpu_override
    ;;
    --cpu=*) cpu="$optval" && enable cpu_override
    ;;
    --tune=*) tune="$optval"
    ;;
    --disable-ccache) ccache="no"
    ;;
    --disable-distcc) distcc="no"
    ;;
    --dvb-path=*) dvb_path="$optval"
    ;;
    --x11-path=*) x11_include_path="$optval"
    ;;
    --xvmc-lib=*) xvmc_lib="$optval"
    ;;
    --enable-glx-procaddrarb) glx_proc_addr_arb="yes"
    ;;
    --disable-glx-procaddrarb) glx_proc_addr_arb="no"
    ;;
    --enable-mac-accel) dvdv="yes"
    ;;
    --disable-mac-accel) dvdv="no"
    ;;
    --enable-opengl-video) opengl_video="yes"
    ;;
    --disable-opengl-video) opengl_video="no"
    ;;
# remove after 0.21
    --enable-*dts)
        echo "DTS passthrough doesn't requires libdts anymore."
        echo "--enable-dts and --enable-libdts will be removed."
    ;;
    --enable-faad) enable libfaad
        echo "WARNING! --enable-faad will be removed, use --enable-libfaad"
    ;;
    --enable-faadbin) enable libfaadbin
        echo "WARNING! --enable-faadbin will be removed, use --enable-libfaadbin"
    ;;
    --enable-vorbis) enable libvorbis
        echo "WARNING! --enable-vorbis will be removed, use --enable-libvorbis"
    ;;
# end of compatibility section (0.21)
# disabled due to abuse in Gentoo ebuild
    --disable-frontend)
    ;;
# disabled due to abuse in Gentoo ebuild
    --disable-backend)
    ;;
    --enable-mac-bundle) enable mac_bundle
    ;;
    --previous|--prev)
        echo "No history of previous configure parameters."
    ;;
    --with-bindings=*)
        tmp_bindings=`echo ${optval} | sed -e 's/,/ /g'`
        for binding in ${tmp_bindings} ; do
            if test x"${binding}" = x"perl"; then
                bindings_perl="yes"
            fi
            if test x"${binding}" = x"python"; then
                bindings_python="yes"
            fi
        done
    ;;
    --without-bindings=*)
        tmp_bindings=`echo ${optval} | sed -e 's/,/ /g'`
        for binding in ${tmp_bindings} ; do
            if test x"${binding}" = x"perl"; then
                bindings_perl="no"
            fi
            if test x"${binding}" = x"python"; then
                bindings_python="no"
            fi
        done
    ;;
    --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


#setting default runtime prefix and libdir
if test -n "${prefix}"; then
    runprefix_default=${prefix}
    libdir_default="${prefix}/${libdir_name}"
else
    runprefix_default=${prefix_default}
    libdir_default="${prefix_default}/${libdir_name}"
fi

if enabled cpu_override || test x"$tune" != x"generic" && enabled proc_opt; then
    echo "Warning! --enable-proc-opt shouldn't be used with --arch, --cpu or --tune"
    echo "Disabling it now."
    disable proc_opt
fi

disabled logging && logfile=/dev/null

echo "# $0 $@" > $logfile
set >> $logfile

cc="${cross_prefix}${cc}"
yasmexe="${cross_prefix}${yasmexe}"
ar="${cross_prefix}${ar}"
nm="${cross_prefix}${nm}"
ranlib="${cross_prefix}${ranlib}"
strip="${cross_prefix}${strip}"

check_cflags -fasm
check_cflags -std=c99

is_x86_cpu "$arch" && arch="x86_32"
is_x86_64_cpu "$arch" && arch="x86_64"

case "$arch" in
    i386|i486|i586|i686|i86pc|BePC|x86_32)
        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

# OS specific
case $target_os in
    beos|haiku|zeta)
        prefix_default="$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,$$(@F)'
        network_extralibs="-lsocket -lnsl"
        ;;
    netbsd)
        oss_demuxer_extralibs="-lossaudio"
        oss_muxer_extralibs="-lossaudio"
        ;;
    openbsd)
        append CCONFIG "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)
        append CCONFIG "freebsd"
        # Workaround compile errors from missing u_int/uint def
        CFLAGS=`echo $CFLAGS | sed 's/-D_POSIX_C_SOURCE=200112//'`
    disable ivtv
        disable need_memalign
        backend="yes"
        ;;
    bsd/os)
        osextralibs="-lpoll -lgnugetopt"
        strip="strip -d"
        ;;
    darwin)
        _restrict=__restrict__
        enable  appleremote
        enable  backend
        enable  darwin
        disable dvb
        disable ivtv
        disable hdpvr
        # Prevent linker problems on default Intel 10.5 XCode:
        ldver=$(ld -v 2>&1 | sed -e s/^[^-]*-//)
        osxver=$(uname -r | cut -c 1)
        if [[ ${ldver%%.*} -lt "82" && ${osxver} = "9" && ${arch} = "x86_32" ]]; then
            cat <<EOF
You have a broken ld. Please upgrade XCode to 3.1.1 or newer.
MMX disabled to allow libavcodec to build.
Playback of HD videos may be very poor.
EOF
            disable mmx
        fi
        disable opengl_vsync
        enable  proc_opt
        disable v4l
        disable x11
        # Workaround compile errors from missing gmtime_r/localtime_r/uint def
        CFLAGS=`echo $CFLAGS | sed 's/-D_POSIX_C_SOURCE=200112//'`
        ###### Standard ffmpeg configure stuff follows:
        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/$$(@F)'
        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
        objformat="macho"
        enabled x86_64 && objformat="macho64"
        ;;
    mingw32*)
        target_os=mingw32
        LIBTARGET=i386
        if test $arch = x86_64; then
            disable need_memalign
            LIBTARGET=x64
        fi
        shlibdir_default="$bindir_default"
        enable  backend
        disable bindings_perl
        disable bindings_python
        disable dv1394
        disable dvb
        disable ivtv
        disable hdpvr
        enable  memalign_hack
        disable network
        enable opengl
        if enabled wince; then
            disable protocols
        fi
        disable v4l
        enable  windows
        disable x11
        ###### Standard ffmpeg configure stuff follows:
        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="$VHOOKLIBS -lswscale\$(BUILDSUF)"
        fi
        disable ffserver
        SLIBPREF="lib"
        SLIBSUF=".dll"
        EXESUF=".exe"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
        SLIB_EXTRA_CMD='-lib /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
        add_extralibs -lws2_32
        objformat="win32"
        ;;
    cygwin*)
        target_os=cygwin
        shlibdir_default="$bindir_default"
        enable windows
        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'
        objformat="win32"
        ;;
    *-dos|freedos|opendos)
        disable ffplay ffserver vhook
        disable $INDEV_LIST $OUTDEV_LIST
        network_extralibs="-lsocket"
        EXESUF=".exe"
        objformat="win32"
        ;;
    linux)
        append CCONFIG "linux"
        backend="yes"
        ! disabled joystick_menu && enable joystick_menu
        enable dv1394
        ;;
    irix*)
        target_os=irix
        ranlib="echo ignoring ranlib"
        ;;
    os/2*)
        strip="lxlite"
        ln_s="cp -f"
        EXESUF=".exe"
        FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
        SHFLAGS='$(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_default $PATHS_LIST

add_extralibs $osextralibs

append CCONFIG "$compile_type"
if test x$compile_type = x"profile" ; then
    PROFILEFLAGS="-DNDEBUG"
    enable debug
elif test x$compile_type = x"debug"; then
    enable debug
    disable optimizations
fi

enabled silent_cc && append CCONFIG "silent"


# Combine FFLDFLAGS and the LDFLAGS environment variable
LDFLAGS="$FFLDFLAGS $EXTRALDFLAGS $LDFLAGS"

test -n "$cross_prefix" && enable cross_compile

# 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

# if no tune setting and we know cpu class look at $processor
if ! enabled cpu_override && enabled proc_opt; then
# first try to tune based on processor info
# EM64T era Intel Xeon
   if expr "$processor" : ".*Intel(R) Xeon(R) CPU.*51[1-6][08]" > /dev/null ; then
       cpu="core2"
   elif expr "$processor" : ".*Intel(R) Xeon(R) CPU.*54[0-9][025]" > /dev/null ; then
       cpu="core2"
   elif expr "$processor" : ".*Intel(R) Xeon(R) CPU.*33[2567]0" > /dev/null ; then
       cpu="core2"
   elif expr "$processor" : ".*Intel(R) Xeon(R) CPU.*X32[123]0" > /dev/null ; then
       cpu="core2"
# Various Intel Duo processors (EMT64T capable)
   elif expr "$processor" : ".*Intel(R).*Core(TM)2.*CPU" > /dev/null ; then
       cpu="core2"
   elif expr "$processor" : "*.Pentium(R) 5 CPU" > /dev/null ; then
       cpu="nocona"
# EM64T compatible Intel Celeron
   elif expr "$processor" : ".*Celeron(R) D CPU" > /dev/null ; then
       cpu="nocona"
       enable small
# Intel Core2 Duo
   elif expr "$processor" : ".*Genuine.*Intel.*CPU.*2160" > /dev/null ; then
       cpu="core2"
# Intel Atom
   elif expr "$processor" : ".*Intel(R) Atom(TM)" > /dev/null ; then
       cpu="nocona"
       enable small
# Reportedly Intel Duo, but we assume 32 bit P3 due to generic name
   elif expr "$processor" : ".*Genuine.*Intel.*CPU" > /dev/null ; then
       cpu="pentium3"
# Pentium-M derivative in AppleTV, assume 32 bit P3 due to generic name
   elif expr "$processor" : ".*Genuine.*Intel.*processor" > /dev/null ; then
       cpu="pentium3"
# P4
   elif expr "$processor" : ".*Xeon(TM) CPU" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : ".*XEON(TM) CPU" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : ".*XEON(TM) MP CPU" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : "pentium4" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : ".*Pentium(R) [4D]" > /dev/null ; then
       cpu="pentium4"
   elif expr "$processor" : ".*Celeron(R) CPU" > /dev/null ; then
       cpu="pentium4"
       enable small
# P6, which includes Intel Core
   elif expr "$processor" : ".*Intel P6 Family" > /dev/null ; then
       cpu="pentium4"
# P3
   elif expr "$processor" : "pentium3" > /dev/null ; then
       cpu="pentium3"
   elif expr "$processor" : ".*Pentium.* III" > /dev/null ; then
       cpu="pentium3"
   elif expr "$processor" : ".*Coppermine" > /dev/null ; then
       cpu="pentium3"
       enable small
   elif expr "$processor" : ".*Celeron(TM) CPU" > /dev/null ; then
       cpu="pentium3"
       enable small
   elif expr "$processor" : ".*Pentium(R) M" > /dev/null ; then
       cpu="pentium3"
   elif expr "$processor" : ".*Celeron(R) M processor" > /dev/null ; then
       cpu="pentium3"
       enable small
# P2
   elif expr "$processor" : "pentium2" > /dev/null ; then
       cpu="pentium2"
   elif expr "$processor" : ".*Mendocino" > /dev/null ; then
       cpu="pentium2"
       enable small
   elif expr "$processor" : ".*Klamath" > /dev/null ; then
       cpu="pentium2"
       enable small
   elif expr "$processor" : ".*Deschutes" > /dev/null ; then
       cpu="pentium2"
       enable small
   elif expr "$processor" : ".*Pentium II" > /dev/null ; then
       cpu="pentium2"
       enable small
# AMD Turion
   elif expr "$processor" : ".*AMD Turion(tm) 64" > /dev/null ; then
       cpu="k8"
# AMD Geode NX
   elif expr "$processor" : ".*AMD Geode(tm) NX" > /dev/null ; then
       cpu="athlon"
       enable small
# Athlon 64
   elif expr "$processor" : ".*AMD Athlon(tm) 64" > /dev/null ; then
       cpu="k8"
   elif expr "$processor" : ".*Athlon LE-16" > /dev/null ; then
       cpu="k8"
# AMD Phenom
   elif expr "$processor" : ".*AMD Phenom(tm)" > /dev/null ; then
       cpu="barcelona"
# AMD Opteron
   elif expr "$processor" : ".*AMD Opteron(tm)" >/dev/null ; then
       cpu="k8"
# Athlon XP
   elif expr "$processor" : "athlon-xp" > /dev/null ; then
       cpu="athlon-xp"
   elif expr "$processor" : ".*AMD Athlon(tm) XP" > /dev/null ; then
       cpu="athlon-xp"
   elif expr "$processor" : ".*AMD Sempron(tm)" > /dev/null ; then
       cpu="athlon-xp"
# Athlon
   elif expr "$processor" : "athlon" > /dev/null ; then
       cpu="athlon"
   elif expr "$processor" : ".*AMD Athlon(..)" > /dev/null ; then
       cpu="athlon"
   elif expr "$processor" : ".*AMD Duron(..)" > /dev/null ; then
       cpu="athlon"
       enable small
# K6
   elif expr "$processor" : ".*AMD-K6(tm) 3D" > /dev/null ; then
       cpu="k6"
       enable small
# Transmeta Crusoe
   elif expr "$processor" : ".*Crusoe(m) Processor TM5600" > /dev/null ; then
       cpu="pentium2"
# c3-2
   elif expr "$processor" : ".*VIA Esther" > /dev/null ; then
       cpu="c3-2"
       enable small
   elif expr "$processor" : ".*VIA Nehemiah" > /dev/null ; then
       cpu="c3-2"
       enable small
# c3
   elif expr "$processor" : ".*VIA.*Ezra" > /dev/null ; then
       cpu="c3"
       enable small
   elif expr "$processor" : ".*VIA Samuel" > /dev/null ; then
       cpu="c3"
       enable small
# if no known processor info, tune base on arch_raw info
   elif test x"$arch_raw" = x"i686" -a x"$mmx" = x"yes" ; then
       cpu="pentium2"
       proc_error_msg="yes"
   elif test x"$arch_raw" = x"i686" -a x"$mmx" = x"no" ; then
       cpu="pentiumpro"
       proc_error_msg="yes"
   elif test x"$arch_raw" = x"i586" -a x"$mmx" = x"yes" ; then
       cpu="pentium-mmx"
       proc_error_msg="yes"
   elif test x"$arch_raw" = x"i586" -a x"$mmx" = x"no" ; then
       cpu="i586"
       proc_error_msg="yes"
   elif test x"$arch_raw" = x"i486"; then
       cpu="i486"
       proc_error_msg="yes"
   elif test x"$arch_raw" = x"i386"; then
       cpu="i386"
       proc_error_msg="yes"
   fi
fi

if enabled proc_error_msg; then
    UNAME_M_INFO=` uname -m 2> /dev/null`
    UNAME_P_INFO=` uname -p 2> /dev/null`
    PROC_INFO=`cat /proc/cpuinfo | grep "model name" | head -n 1 | sed s/"\t"//g 2>/dev/null`
    PROC_FLAG=`cat /proc/cpuinfo | grep "flags" | head -n 1 | sed s/"\t"//g 2>/dev/null`
    echo ""
    echo " *** WARNING *** "
    echo " Your CPU was not detected properly:"
    echo "   uname -m: $UNAME_M_INFO"
    echo "   uname -p: $UNAME_P_INFO"
    echo " $PROC_INFO"
    echo "      $PROC_FLAG"
    echo ""
    echo " If you are using a recent checkout from "
    echo "   http://svn.mythtv.org/svn/trunk/mythtv "
    echo " please e-mail the above to mythtv-users@mythtv.org"
    echo " With the subject \"configure did not detect my cpu\""
    echo ""
fi

# compute mmx state
if ! disabled mmx ; then
    disable mmx
    if test x"$arch" = x"x86_64"; then
        enable mmx
    elif test $cpu != "generic"; then
        is_x86_mmx "$cpu" && enable mmx
    elif expr "$processor_flags" : ".*mmx" > /dev/null ; then
            enable mmx
    else
        is_x86_mmx "$arch_raw" && enable mmx
    fi
fi

# compute cmov state
if test $cpu = "generic"; then
    if expr "$processor_flags" : ".*cmov" > /dev/null ; then
        enable cmov
    else
        disable cmov
    fi
fi

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 || check_cflags -mdynamic-no-pic
    fi
    # Apple GCC doesn't support march=core2 yet:
    if test $cpu == "core2"; then
        cpu="nocona"
    fi
fi

disabled optimizations || check_optflags -fomit-frame-pointer

# Add processor-specific flags
if test $cpu != "generic"; then
    case $cpu in
        native)
            check_archflags "-march=$cpu"
        ;;
        # targets that do NOT support conditional mov (cmov)
        i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
            check_archflags "-march=$cpu"
            disable cmov
        ;;
        # targets that do support conditional mov (cmov)
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|barcelona|athlon-fx|core2|c3-2)
            check_archflags "-march=$cpu"
            enable cmov
            enable fast_cmov
        ;;
        # targets that do support conditional mov but on which it's slow
        pentium4|prescott|nocona)
            check_archflags "-march=$cpu"
            enable cmov
            disable fast_cmov
        ;;
    esac
fi

# set generic archflags
if test x"$ARCHFLAGS" = x""; then
    if test x"$arch" = x"x86_32"; then
        if ! enabled cmov; then
            check_archflags "-march=i586"
        else
            check_archflags "-march=pentiumpro"
        fi
    elif test x"$arch" = x"x86_64"; then
        check_archflags "-march=k8"
    fi
fi

# Add processor-specific flags
if test $tune != "generic"; then
    warn_altivec(){
        $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
    }
    case $tune in
        601|ppc601|PowerPC601)
            check_mtune_mcpu "601"
            warn_altivec enabled PPC601
        ;;
        603*|ppc603*|PowerPC603*)
            check_mtune_mcpu "603"
            warn_altivec enabled PPC603
        ;;
        604*|ppc604*|PowerPC604*)
            check_mtune_mcpu "604"
            warn_altivec enabled PPC604
        ;;
        G3|g3|75*|ppc75*|PowerPC75*)
            check_mtune_mcpu "750" "-mpowerpc-gfxopt"
            warn_altivec enabled PPC75x
        ;;
        G4|g4|745*|ppc745*|PowerPC745*)
            check_mtune_mcpu "7450" "-mpowerpc-gfxopt"
            warn_altivec disabled PPC745x
        ;;
        74*|ppc74*|PowerPC74*)
            check_mtune_mcpu "7400" "-mpowerpc-gfxopt"
            warn_altivec disabled PPC74xx
        ;;
        G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
            check_mtune_mcpu "970" "-mpowerpc-gfxopt -mpowerpc64"
            warn_altivec disabled PPC970
            enable ppc64
        ;;
        Cell|CELL|cell)
            check_mtune_mcpu "cell"
            warn_altivec disabled Cell
            enable ppc64
        ;;
        # targets that do NOT support conditional mov (cmov)
        i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
            check_mtune_mcpu "$tune"
            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*|barcelona|athlon-fx|core2|c3-2)
            check_mtune_mcpu "$tune"
            enabled cmov && enable fast_cmov
        ;;
        # targets that do support conditional mov but on which it's slow
        pentium4|prescott|nocona)
            check_mtune_mcpu "$tune"
            disable fast_cmov
        ;;
        sparc64)
            check_mtune_mcpu "v9"
        ;;
        arm*|cortex*)
            check_mtune_mcpu "$tune"
        ;;
        *)
            check_mtune_mcpu "$tune"
        ;;
    esac
fi

<<BLOCK_QUOTE
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
BLOCK_QUOTE

is_qmake4(){
    $1 --version 2>&1 | grep -q "Qt version 4"
}

if ! is_qmake4 $qmake; then
    is_qmake4 qmake-qt4 && qmake=qmake-qt4 || die "qmake for Qt4 not found. Please specify the correct qmake with --qmake="
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 $TMPO | grep ff_extern)
extern_prefix=${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"' -fPIC -DPIC

    # 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"'

    YASMFLAGS="-f $objformat -DARCH_$(toupper $arch)"
    enabled     x86_64        && append YASMFLAGS "-m amd64"
    enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
    case "$objformat" in
        elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
        macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
        *)                    append YASMFLAGS "-DPREFIX"  ;;
    esac
    check_yasm "pabsw xmm0, xmm0" && enable yasm
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 && inc_altivec_h="#include <altivec.h>" ; } ||
        check_cflags -faltivec
    check_cppflags -maltivec -mabi=altivec &&
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
        check_cppflags -faltivec

    # check if our compiler supports Motorola AltiVec C API
    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

    # check if our compiler supports braces for vector declarations
    check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
$inc_altivec_h
int main (void) { (vector int) {1}; 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 armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc

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


enabled vis && check_mtune_mcpu "ultrasparc"

# if architecture specific flags don't work blank them
echo "int main( void ) { return 0; }" > $TMPC
TMP_ARCHFLAGS=$ARCHFLAGS
$cc $CFLAGS $ARCHFLAGS -o $TMPE $TMPC 2> /dev/null || ARCHFLAGS=""
if test x"$ARCHFLAGS" = x""; then
    if enabled cpu_override || enabled proc_opt || test x"$tune" != x"generic"; then
        echo "ERROR: CPU specific ./configure options failed compile test"
        echo "       Removing CPU specific compilation options. ($TMP_ARCHFLAGS)"
        echo ""
    fi
fi

# "CPU_CLIP" test for SRC / libsamplerate
# test positive wrap
cat > $TMPC << EOF
int main(){
    float f = (1<<(sizeof(short)*8))>>1;
    short s = (short)f;
    if ( s == --f )
        return(0);
    return(1);
}
EOF

if $cc $CFLAGS $ECFLAGS -o $TMPE $TMPC 2>/dev/null ; then
$TMPE && cpuclipspositive="yes"
fi

# test negative wrap
cat > $TMPC << EOF
int main(){
    float f = -((1<<(sizeof(short)*8))>>1) - 1;
    short s = (short)f;
    if ( s == ++f)
        return(0);
    return(1);
}
EOF

if $cc $CFLAGS $ECFLAGS -o $TMPE $TMPC 2>/dev/null ; then
$TMPE && cpuclipsnegative="yes"
fi

# test for distcc
enabled distcc && check_cmd distcc --version || disable distcc
if enabled distcc; then
    XYZ=`which $cc`
    if test x"$XYZ" != x"" -a x"`ls -l $XYZ | grep distcc`" != x""; then
        distcc="symlink"
        distcc_txt=" $cc"
    fi
fi

# test for ccache
enabled ccache && check_cmd ccache -V || disable ccache
if enabled ccache; then
    XYZ=`which $cc`
    if test x"$XYZ" != x"" -a x"`ls -l $XYZ | grep ccache`" != x""; then
        ccache="symlink"
        ccache_txt=" $cc"
    fi
fi

# ccache should be used before distcc for better cache coherency
if enabled distcc; then
    if disabled ccache; then
        cc="distcc $cc"
        cxx="distcc $cxx"
    elif enabled ccache; then
        cc="ccache distcc $cc"
        cxx="ccache distcc $cxx"
    else
        disable distcc
        distcc_txt="t using distcc explicitly, since ccache symlink is present"
    fi
else
    if enabled ccache; then
        cc="ccache $cc"
        cxx="ccache $cxx"
    fi
fi

# ---
# 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 poll.h
check_header sys/mman.h
check_header sys/resource.h
check_header sys/select.h
check_header termios.h

check_func posix_fadvise
check_func2 sys/timeb.h ftime
check_func2 sys/time.h gettimeofday
check_func2 "sys/types.h sys/socket.h ifaddrs.h" getifaddrs

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
enabled bzlib && check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

enabled ffmpeg_pthreads && enable pthreads

# check for some common methods of building with pthread support
# do this before the optional library checks as some of them require pthreads
if enabled pthreads; then
    if check_func pthread_create; then
        :
    elif check_func pthread_create -pthread; then
        add_cflags -pthread
        add_extralibs -pthread
    elif check_func pthread_create -pthreads; then
        add_cflags -pthreads
        add_extralibs -pthreads
    elif check_func pthread_create -lpthreadGC2; then
        add_extralibs -lpthreadGC2
    elif ! check_lib pthread.h pthread_create -lpthread; then
        disable ffmpeg_pthreads pthreads
    fi
fi

for thread in $THREADS_LIST; do
    if enabled $thread; then
        test -n "$thread_type" &&
            die "ERROR: Only one thread type must be selected." ||
            thread_type="$thread"
    fi
done

check_lib math.h sin -lm

# test for C99 functions in math.h
for func in llrint lrint lrintf round roundf; do
    check_exec <<EOF && enable $func || disable $func
#include <math.h>
int main(void) { return ($func(3.999f) > 0)?0:1; }
EOF
done

# these are off by default, so fail if requested and not available
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
enabled liba52     && require  liba52 a52dec/a52.h a52_init -la52
enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
enabled libdirac   && add_cflags "$(pkg-config --cflags dirac)" \
                   && require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder \
                   && require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
enabled libmp3lame && require  LAME lame/lame.h lame_init -lmp3lame -lm
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) \
                        && require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
enabled libx264    && require  x264 x264.h x264_encoder_open -lx264 -lm
enabled libxvid    && require  Xvid xvid.h xvid_global -lxvidcore
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib

# libdc1394 check
if enabled libdc1394; then
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
        enable libdc1394_2; } ||
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
        enable libdc1394_1; } ||
    die "ERROR: No version of libdc1394 found "
fi

check_header stdint.h

# test for lrint in math.h
check_exec <<EOF && lrint=yes || lrint=no
#define _ISOC9X_SOURCE  1
#include <math.h>
int main( void ) { return (lrint(3.999f) > 0)?0:1; }
EOF

#test for round()
check_exec <<EOF && round=yes || round=no
#define _ISOC9X_SOURCE  1
#include <math.h>
int main( void ) { return (round(3.999f) > 0)?0:1; }
EOF

# test for sizeof(int)
for sizeof in 1 2 4 8 16; do
    check_cc <<EOF && _sizeof_int=$sizeof && break
void foo(){switch (0) case 0: case (sizeof(int) == $sizeof):;}
EOF
done

# test for sizeof(long)
for sizeof in 1 2 4 8 16; do
  check_cc <<EOF && _sizeof_long=$sizeof && break
void foo(){switch (0) case 0: case (sizeof(long) == $sizeof):;}
EOF
done

if test x"$_restrict" = x""; then
_restrict=
for restrict_keyword in restrict __restrict__ __restrict; do
    check_cc <<EOF && _restrict=$restrict_keyword && break
void foo(char * $restrict_keyword p);
EOF
done
fi

# Work around weird g++ build error with <stdint.h> in some myth src:
if test $target_os = darwin; then
    _restrict=__restrict__
fi

test "$vhook" = "default" && vhook="$dlopen"

if test "$target_os" = cygwin -o "$target_os" = mingw32 && enabled_all static vhook ; then
    disable vhook
    echo
    echo "At the moment vhooks don't work on Cygwin or MinGW static builds."
    echo "Patches welcome."
    echo
fi

if enabled vhook; then
    check_ldflags -rdynamic
    check_ldflags -export-dynamic
fi

check_foo_config imlib2 imlib2 Imlib2.h imlib_load_font
check_foo_config freetype2 freetype ft2build.h FT_Init_FreeType

##########################################
# fribidi check

disable fribidi
FRIBIDI_CONFIG="pkg-config fribidi"
if test x`which pkg-config 2>/dev/null` != x"" ; then
   if `pkg-config --atleast-version 0.19 fribidi` ; then
       check_cc `${FRIBIDI_CONFIG} --cflags` `${FRIBIDI_CONFIG} --libs` << EOF && enable fribidi
#include <stdio.h>
#include <fribidi/fribidi.h>
int main()
{
    if (fribidi_parse_charset("UTF-8") != FRIBIDI_CHAR_SET_UTF8)
    {
        printf("Fribidi headers are not consistents with the library!\n");
        return 1;
    }
    return 0;
}
EOF
    else
        disable fribidi
    fi
fi
##########################################
# SDL check

disable sdl_too_old
disable sdl
#SDL_CONFIG="${cross_prefix}sdl-config"
if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
    sdl_cflags=`"${SDL_CONFIG}" --cflags`
    temp_cflags $sdl_cflags
    temp_extralibs `"${SDL_CONFIG}" --libs`
    if check_lib2 SDL.h SDL_Init; then
        _sdlversion=`"${SDL_CONFIG}" --version | sed 's/[^0-9]//g'`
        if test "$_sdlversion" -lt 121 ; then
            enable sdl_too_old
        else
            enable sdl
            check_cc $sdl_cflags <<EOF && enable sdl_video_size
#include <SDL.h>
int main(int argc, char **argv){
    const SDL_VideoInfo *vi = SDL_GetVideoInfo();
    int w = vi->current_w;
    return 0;
}
EOF
        fi
    fi
    restore_flags
fi

texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html

##########################################
# Network check

if enabled network; then
    check_type sys/socket.h socklen_t
    # Prefer arpa/inet.h over winsock2
    if check_header arpa/inet.h ; then
        check_func closesocket
    elif check_header winsock2.h ; then
        network_extralibs="-lws2_32"
        check_type ws2tcpip.h socklen_t
        check_func2 winsock2.h closesocket
    fi
fi

##########################################
# IPv6 check

enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
int main(void) {
    struct sockaddr_storage saddr;
    struct ipv6_mreq mreq6;
    getaddrinfo(0,0,0,0);
    getnameinfo(0,0,0,0,0,0,0);
    IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
}
EOF

check_header linux/videodev.h
check_header linux/videodev2.h

check_func2 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
{ check_header dev/bktr/ioctl_meteor.h &&
  check_header dev/bktr/ioctl_bt848.h; } ||
{ check_header machine/ioctl_meteor.h &&
  check_header machine/ioctl_bt848.h; } ||
{ check_header dev/video/meteor/ioctl_meteor.h &&
  check_header dev/video/bktr/ioctl_bt848.h; } ||
check_header dev/ic/bt8xx.h

check_header sys/soundcard.h
check_header soundcard.h

# ALSA probe
! disabled audio_alsa &&
    check_lib alsa/asoundlib.h snd_asoundlib_version $audio_alsa_libs &&
    enable  audio_alsa ||
    disable audio_alsa

# aRts probe
! disabled audio_arts &&
    check_foo_config arts artsc artsc.h arts_init &&
    audio_arts_libs=`artsc-config --libs`  &&
    audio_arts_cflags=`artsc-config --cflags` &&
    enable  audio_arts ||
    disable audio_arts

# JACK probe
! disabled audio_jack &&
    check_lib jack/jack.h jack_client_new $audio_jack_libs &&
    enable  audio_jack ||
    disable audio_jack

# deal with the x11 frame grabber
enabled x11grab                         &&
check_header X11/Xlib.h                 &&
check_header X11/extensions/XShm.h      &&
check_func XOpenDisplay -lX11           &&
check_func XShmCreateImage -lX11 -lXext

enabled debug && add_cflags -g"$debuglevel"
enabled debug && add_cppflags -g

# add some useful compiler flags if supported
#check_cflags -Wdeclaration-after-statement
check_cflags -Wall
check_cflags -Wno-switch
check_cflags -Wdisabled-optimization
check_cflags -Wpointer-arith
check_cflags -Wredundant-decls
check_cflags -Wno-pointer-sign
check_cflags -Wcast-qual
check_cflags -funit-at-a-time
check_cflags -Wwrite-strings
check_cflags -Wtype-limits
enabled extra_warnings && check_cflags -Winline
# C++ Flags
check_cppflags -Wall
check_cppflags -Wno-switch
check_cppflags -Wpointer-arith
check_cppflags -Wredundant-decls
check_cppflags -Wno-non-virtual-dtor
check_cppflags -funit-at-a-time
#needed for INT64_C in libs/libavformat under g++
check_cppflags -D__STDC_CONSTANT_MACROS

# add some linker flags
check_ldflags -Wl,--warn-common
check_ldflags -Wl,--as-needed
check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
check_ldflags -Wl,-Bsymbolic

# GCC version
gcc_version=$($cc -dumpversion)
GCC_MAJOR=$(echo ${gcc_version} | cut -s -d'.' -f1)
GCC_MINOR=$(echo ${gcc_version} | cut -s -d'.' -f2)

if enabled symbol_visibility; then
    if test x"$GCC_MAJOR" = x"4" ; then
        check_cppflags -fvisibility-inlines-hidden
        append CCONFIG "use_hidesyms"
    else
        echo "Warning: --enable-symbol-visibility requires gcc 4.x"
    fi
fi

if enabled dvb; then
    dvb="no"
    if test -f "$dvb_path"/linux/dvb/frontend.h ; then
        if test -f "$dvb_path"/../MAINTAINERS ; then
            echo "Warning: DVB location in kernel. May not compile."
        fi
        dvb="yes"
    else
        dvb_path="/usr/src/linux/include"
        KERNEL_RELEASE=`uname -r 2>/dev/null`
        if test x"$KERNEL_RELEASE" != x"" ; then
            dvb_path="/usr/src/linux-$KERNEL_RELEASE/include"
        fi

        if test -f "$dvb_path"/linux/dvb/frontend.h ; then
            if test -f "$dvb_path"/../MAINTAINERS ; then
                echo "Warning: DVB location in kernel. May not compile."
            fi
            dvb="yes"
        else
            echo "DVB location needs to have linux/dvb/frontend.h [$dvb_path]"
        fi
    fi
fi

# Check that all MythTV build "requirements" are met:

enabled freetype2 ||
    die "ERROR! You must have FreeType installed to compile MythTV."

#has_library libmysqlclient || has_library mysql/libmysqlclient ||
#    die "ERROR! You must have a MySQL library installed to run MythTV."
#
enabled lamemp3 && check_lib2 lame/lame.h lame_init -lmp3lame -lm ||
    die "ERROR! You must have the Lame MP3 encoding library installed to compile MythTV."

if $(pkg-config --atleast-version 4.4.0 QtWebKit) ; then
    enable qtwebkit
else
    disable qtwebkit && echo "Warning! QtWebkit headers not found, MythBrowser will not work."
fi

if enabled firewire; then
    firewire="no"
    libavc_5_3="no"
    if has_library libiec61883 -a \
       has_library libavc1394 -a \
       has_library librom1394; then
        if test x`which pkg-config 2>/dev/null` != x"" ; then
            if `pkg-config --atleast-version 0.5.0 libavc1394` ; then
                if `pkg-config --atleast-version 1.0.0 libiec61883` ; then
                    firewire="yes"
                    if `pkg-config --atleast-version 0.5.3 libavc1394` ; then
                        libavc_5_3="yes"
                    fi
                fi
            fi
        fi
    fi
    if test $target_os = darwin; then
        # This should pick the newest. e.g. FireWireSDK21 instead of 20
        # Unfortunately, the location keeps changing:
        #/Developer/FireWireSDK20/Examples/AVCVideoServices/Framework
        #/Developer/FireWireSDK21/Examples/Framework
        mac_avc=`find /Developer/FireWireSDK* -name Framework 2> /dev/null \
                 | tail -n 1`
        if test -d "$mac_avc" ; then
            firewire="yes"
        else
            echo Firewire being disabled. /Developer/FireWireSDK* missing
        fi
    fi
fi

enabled libfftw3 && check_lib2 fftw3.h fftw_init_threads -lfftw3_threads -lfftw3 ||
    disable libfftw3

enabled x11 && has_library libX11 || disable x11
enabled xrandr && check_header X11/extensions/Xrandr.h || disable xrandr
enabled xv && has_library libXv || disable xv

check_header GL/gl.h
if ! enabled windows; then
    has_library libGL || has_library libopengl32 || disable opengl
fi

VENDOR_XVMC_LIBS=""
check_header X11/extensions/XvMClib.h
has_library libXvMCW || disable xvmcw
check_header X11/extensions/vldXvMC.h

if test x"$xvmc_lib" != x""; then
    VENDOR_XVMC_LIBS="-l"$xvmc_lib
    disable xvmcw
elif enabled xvmcw; then
    VENDOR_XVMC_LIBS="-lXvMCW"
elif enabled xvmc_pro; then
    if has_library libviaXvMCPro ; then
        VENDOR_XVMC_LIBS="-lviaXvMCPro"
    elif has_library libchromeXvMCPro ; then
        VENDOR_XVMC_LIBS="-lchromeXvMCPro"
    else
        disable xvmc_pro
    fi
elif enabled xvmc_vld; then
    if has_library libviaXvMC ; then
        VENDOR_XVMC_LIBS="-lviaXvMC"
    elif has_library libchromeXvMC ; then
        VENDOR_XVMC_LIBS="-lchromeXvMC"
    else
        disable xvmc_pro
    fi
elif has_library libXvMCNVIDIA ; then
    VENDOR_XVMC_LIBS="-lXvMCNVIDIA"
elif has_library libI810XvMC ; then
    VENDOR_XVMC_LIBS="-lI810XvMC"
else
    disable xvmc xvmcw
fi

if test x"$VENDOR_XVMC_LIBS" = x"-lXvMCNVIDIA" ; then
    enable xvmc_opengl
    disable xvmc_vld xvmc_pro
elif enabled xvmc_opengl ; then
    disable xvmc_opengl
    echo "Disabling XvMC-opengl. It is only available when linking against libXvMCNVIDIA"
fi

enabled xvmc_pro && enable xvmc_vld

check_header vdpau/vdpau.h
enabled vdpau && has_library libvdpau || disable vdpau

# Can only do Mac accel on Mac platform
enabled dvdv && test $target_os = darwin || disable dvdv

# CoreVideo in only available on Mac OS 10.4, or on 10.3 with QuickTime 7.
# This checks for it, and some other calls that the module needs
if test $target_os = darwin; then
    cat > $TMPC << EOF
#include <QuartzCore/CVDisplayLink.h>
#include <AGL/agl.h>
int main( void ) { return aglGetCGLContext(0,0L); }
EOF
    if $cc -o $TMPE $TMPC -framework AGL > /dev/null 2>&1; then
        mac_corevideo="yes"
    fi
fi

# Ubuntu Dapper installs NVIDIA GL headers to a weird location in order
# not to overwrite the headers installed from Mesa, etc. We need to
# add that path to include paths if that's the case.
if test -d /usr/share/doc/nvidia-glx-dev/include; then
    CONFIG_INCLUDEPATH="$CONFIG_INCLUDEPATH /usr/share/doc/nvidia-glx-dev/include"
fi

# Same for Debian Sid.
if test -d /usr/share/nvidia/include/GL; then
    CONFIG_INCLUDEPATH="$CONFIG_INCLUDEPATH /usr/share/nvidia/include"
fi

if enabled directfb; then
    directfb="no"
    if test x`which directfb-config 2> /dev/null` != x"" ; then
        directfb="yes"
        CONFIG_DIRECTFB_LIBS=`directfb-config --libs`
        CONFIG_DIRECTFB_CXXFLAGS=`directfb-config --cflags`
    fi
fi

if test $target_os = darwin; then
    # So far, only OS X 10.4 has this as a non-private framework
    if test -d /System/Library/Frameworks/DiskArbitration.framework/Headers ; then
        darwin_da="yes"
    fi
fi

if enabled small; then
    check_cflags -Os            # not all compilers support -Os
    optimizations="small"
elif enabled optimizations; then
    if $cc -v 2>&1 | grep -q xlc; then
        add_optflags  "-O5"
        add_ldflags "-O5"
    else
        add_optflags "-O3"
    fi
fi
check_cflags -fno-math-errno
check_cflags -fno-signed-zeros

# add some flags for Intel C Compiler
if $cc --version | grep -q Intel; then
  # Just warnings, no remarks
  check_cflags -w1
  # -wd: Disable following warnings
  # 144, 167, 556: -Wno-pointer-sign
  # 10006: ignoring unknown option -fno-signed-zeros
  # 10156: ignoring option '-W'; no argument required
  check_cflags -wd144,167,556,10006,10156
  # 11030: Warning unknown option --as-needed
  # 10156: ignoring option '-export'; no argument required
  check_ldflags -wd10156,11030
  # Allow to compile with optimizations
  check_ldflags -march=$cpu
fi

# PIC flags for shared library objects where they are needed
if enabled shared; then
    # LIBOBJFLAGS may have already been set in the OS configuration
    if test -z "$LIBOBJFLAGS" ; then
        case "$arch" in
            x86_64|ia64|alpha|sparc*|power*|parisc*) LIBOBJFLAGS='$(PIC)' ;;
        esac
    fi
fi

if enabled gprof; then
    add_cflags  "-p"
    add_ldflags "-p"
fi

VHOOKCFLAGS="-fPIC"

# Find out if the .align argument is a power of two or not.
if test $asmalign_pot = "unknown"; then
    disable asmalign_pot
    echo 'asm (".align 3");' | check_cc && enable asmalign_pot
fi

enabled_any $DECODER_LIST      && enable decoders
enabled_any $ENCODER_LIST      && enable encoders
enabled_any $BSF_LIST          && enable bsfs
enabled_any $DEMUXER_LIST      && enable demuxers
enabled_any $MUXER_LIST        && enable muxers
enabled_any $FILTER_LIST       && enable filters
enabled_any $INDEV_LIST        && enable demuxers
enabled_any $OUTDEV_LIST       && enable muxers
enabled_any $PROTOCOL_LIST     && enable protocols

enabled_any $THREADS_LIST      && enable threads

check_deps $CONFIG_LIST       \
           $HAVE_LIST         \
           $DECODER_LIST      \
           $ENCODER_LIST      \
           $PARSER_LIST       \
           $BSF_LIST          \
           $DEMUXER_LIST      \
           $MUXER_LIST        \
           $FILTER_LIST       \
           $INDEV_LIST        \
           $OUTDEV_LIST       \
           $PROTOCOL_LIST     \
           $MYTHTV_LIST       \
           $MYTHTV_CONFIG_LIST \
           $USING_LIST        \

enabled libdc1394 && append pkg_requires "libraw1394"
enabled libdirac  && append pkg_requires "dirac"
enabled libtheora && append pkg_requires "theora"
enabled libvorbis && append pkg_requires "vorbisenc"

echo "# Basic Settings"
echo "Compile type              $compile_type"
if test x"$compile_type" = x"debug" -a $arch = "x86_32" -a \
        x"$GCC_MAJOR" != x"" -a $GCC_MAJOR -lt "4"; then
    echo "WARNING: backtraces involving libavcodec are not supported for gcc < 4.0"
fi
echo "Compiler cache            $ccache$ccache_txt"
echo "DistCC                    $distcc$distcc_txt"
echo "qmake                     $(which $qmake)"
echo "install prefix            $prefix"
echo "runtime prefix            $runprefix"
<<BLOCK_QUOTE
echo "source path               $source_path"
echo "C compiler                $cc"
echo ".align is power-of-two    $asmalign_pot"
echo "ARCH                      $arch ($cpu)"
BLOCK_QUOTE
if enabled cpu_override && test x"$cpu" != x"generic"; then
    echo "CPU                       $arch ($cpu)"
elif test x"$processor" != x"" ; then
    echo "CPU                       $arch ($processor)"
elif test x"$arch_raw" != x"" ; then
    echo "CPU                       $arch ($arch_raw)"
else
    echo "CPU                       $arch"
fi
<<BLOCK_QUOTE
if test "$build_suffix" != ""; then
    echo "build suffix              $build_suffix"
fi
BLOCK_QUOTE
echo "big-endian                ${bigendian-no}"
if test $arch = "x86_32" -o $arch = "x86_64"; then
    echo "yasm                      ${yasm-no}"
    echo "MMX enabled               ${mmx-no}"
    echo "CMOV enabled              ${cmov-no}"
    echo "CMOV is fast              ${fast_cmov-no}"
<<BLOCK_QUOTE
    echo "EBX available             ${ebx_available-no}"
    echo "EBP available             ${ebp_available-no}"
BLOCK_QUOTE
fi
if test $arch = "armv4l"; then
    echo "ARMv5TE enabled           ${armv5te-no}"
    echo "ARMv6 enabled             ${armv6-no}"
    echo "ARM VFP enabled           ${armvfp-no}"
    echo "IWMMXT enabled            ${iwmmxt-no}"
    echo "NEON enabled              ${neon-no}"
fi
if test $arch = "mips"; then
    echo "MMI enabled               ${mmi-no}"
fi
if test $arch = "powerpc"; then
    echo "AltiVec enabled           ${altivec-no}"
    echo "dcbzl available           ${dcbzl-no}"
fi
<<BLOCK_QUOTE
echo "gprof enabled             ${gprof-no}"
echo "debug symbols             ${debug-no}"
echo "strip symbols             ${stripping-no}"
echo "optimizations             ${optimizations-no}"
echo "static                    ${static-no}"
echo "shared                    ${shared-no}"
echo "postprocessing support    ${postproc-no}"
echo "software scaler enabled   ${swscale-no}"
echo "new filter support        ${avfilter-no}"
echo "filters using lavformat   ${avfilter_lavf-no}"
echo "video hooking             ${vhook-no}"
if enabled vhook; then
    echo "Imlib2 support            ${imlib2-no}"
    echo "FreeType support          ${freetype2-no}"
fi
echo "network support           ${network-no}"
if enabled network; then
    echo "IPv6 support              ${ipv6-no}"
fi
echo "threading support         ${thread_type-no}"
echo "SDL support               ${sdl-no}"
if enabled sdl_too_old; then
    echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
fi
echo "Sun medialib support      ${mlib-no}"
echo "AVISynth enabled          ${avisynth-no}"
echo "liba52 support            ${liba52-no}"
echo "liba52 dlopened           ${liba52bin-no}"
echo "libamr-nb support         ${libamr_nb-no}"
echo "libamr-wb support         ${libamr_wb-no}"
echo "libdc1394 support         ${libdc1394-no}"
echo "libdirac enabled          ${libdirac-no}"
echo "libfaac enabled           ${libfaac-no}"
echo "libfaad enabled           ${libfaad-no}"
echo "libfaad dlopened          ${libfaadbin-no}"
echo "libgsm enabled            ${libgsm-no}"
echo "libmp3lame enabled        ${libmp3lame-no}"
echo "libnut enabled            ${libnut-no}"
echo "libschroedinger enabled   ${libschroedinger-no}"
echo "libtheora enabled         ${libtheora-no}"
echo "libvorbis enabled         ${libvorbis-no}"
echo "libx264 enabled           ${libx264-no}"
echo "libxvid enabled           ${libxvid-no}"
echo "zlib enabled              ${zlib-no}"
echo "bzlib enabled             ${bzlib-no}"
echo

for type in decoder encoder parser demuxer muxer protocol filter bsf indev outdev; do
    echo "Enabled ${type}s:"
    eval list=\$$(toupper $type)_LIST
    for part in $list; do
        enabled $part && echo ${part%_*}
    done | sort | pr -3 -t
    echo
done

license="LGPL"
if enabled nonfree; then
    license="unredistributable"
elif enabled gpl; then
    license="GPL"
fi

BLOCK_QUOTE

echo
if enabled frontend; then
  echo "# Input Support"
  echo "Joystick menu             ${joystick_menu-no}"
  echo "lirc support              ${lirc-no}"
  if test x"$target_os" = x"darwin" ; then
    echo "Apple Remote              ${appleremote-no}"
  fi
fi

if enabled backend; then
  echo "Video4Linux sup.          ${v4l-no}"
  echo "ivtv support              ${ivtv-no}"
  echo "HR-PVR support            ${hdpvr-no}"
  echo "FireWire support          ${firewire-no}"
  echo "DVB support               ${dvb-no} [$dvb_path]"
#  echo "DBox2 support             ${dbox2-no}"
  echo "HDHomeRun support         ${hdhomerun-no}"
  echo "IPTV support              ${iptv-no}"
fi

if enabled frontend; then
  echo
  echo "# Sound Output Support"
  echo "OSS support               ${audio_oss-no}"
  echo "ALSA support              ${audio_alsa-no}"
  echo "aRts support              ${audio_arts-no}"
  echo "JACK support              ${audio_jack-no}"
  if test x"$target_os" = x"mingw32" ; then
    echo "Windows support           yes"
  fi
  echo "libfftw3 support          ${libfftw3-no}"
  echo
  echo "# Video Output Support"
  echo "x11 support               ${x11-no}"
if enabled x11 ; then
  echo "xrandr support            ${xrandr-no}"
  echo "xv support                ${xv-no}"
  echo "XvMC support              ${xvmc-no}"
  echo "XvMC VLD support          ${xvmc_vld-no}"
  echo "XvMC pro support          ${xvmc_pro-no}"
  echo "XvMC OpenGL sup.          ${xvmc_opengl-no}"
if test "$VENDOR_XVMC_LIBS" != "" ; then
  echo "XvMC libs                 $VENDOR_XVMC_LIBS"
fi
  echo "VDPAU support             ${vdpau-no}"
fi
  echo "OpenGL video              ${opengl_video-no}"
  if test x"$target_os" = x"darwin" ; then
    echo "Mac acceleration          ${dvdv-no}"
  fi
  echo "OpenGL vsync              ${opengl_vsync-no}"
  echo "DirectFB                  ${directfb-no}"
  if enabled windows ; then
    echo "DirectX                   ${directx-no}"
  fi
  if test x"$target_os" = x"mingw32" ; then
    echo "Windows (Direct3D)        yes"
  fi
  echo "Fribidi formatting        ${fribidi}"
  echo "MHEG support              ${mheg}"
  echo
fi

echo "# Misc Features"
echo "multi threaded libavcodec ${threads-no}"
echo "Frontend                  ${frontend-no}"
echo "Backend                   ${backend-no}"
echo

echo "# Bindings"
echo "bindings_perl             ${bindings_perl-no}"
echo "bindings_python           ${bindings_python-no}"
echo ""

MYTH_CONFIG_H=libs/libmythdb/mythconfig.h
MYTH_CONFIG_MAK=libs/libmythdb/mythconfig.mak
echo "Creating $MYTH_CONFIG_H and $MYTH_CONFIG_MAK"

date >> config.log
echo "   $0 $FFMPEG_CONFIGURATION" >> config.log
echo "# Automatically generated by configure - do not modify" > $MYTH_CONFIG_MAK
echo "/* Automatically generated by configure - do not modify */" > $TMPH
echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
echo "#define FFMPEG_CONFIG_H" >> $TMPH
echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH

echo "RUNPREFIX=$runprefix" >> $MYTH_CONFIG_MAK
echo "PREFIX=$prefix" >> $MYTH_CONFIG_MAK
echo "LIBDIRNAME=$libdir_name" >> $MYTH_CONFIG_MAK
echo "LIBDIR=$libdir" >> $MYTH_CONFIG_MAK
<<BLOCK_QUOTE
echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
echo "CC=$cc" >> config.mak
echo "YASM=$yasmexe" >> config.mak
echo "AR=$ar" >> config.mak
echo "RANLIB=$ranlib" >> config.mak
echo "LN_S=$ln_s" >> config.mak
enabled stripping &&
    echo "STRIP=$strip" >> config.mak ||
    echo "STRIP=echo ignoring strip" >> config.mak
BLOCK_QUOTE
echo "QMAKE_CC=$cc" >> $MYTH_CONFIG_MAK
echo "QMAKE_CXX=$cxx" >> $MYTH_CONFIG_MAK
echo "QMAKE_LINK=$cxx" >> $MYTH_CONFIG_MAK
echo "YASM=$yasmexe" >> $MYTH_CONFIG_MAK
echo "ARCHFLAGS=$ARCHFLAGS" >> $MYTH_CONFIG_MAK
echo "PROFILEFLAGS=$PROFILEFLAGS" >> $MYTH_CONFIG_MAK
echo "OPTFLAGS=$OPTFLAGS" >> $MYTH_CONFIG_MAK
echo "ECFLAGS=$CFLAGS $ECFLAGS" >> $MYTH_CONFIG_MAK
echo "ECXXFLAGS=$ECXXFLAGS" >> $MYTH_CONFIG_MAK
echo "LDFLAGS=$LDFLAGS" >> $MYTH_CONFIG_MAK
echo "YASMFLAGS=$YASMFLAGS" >> $MYTH_CONFIG_MAK
<<BLOCK_QUOTE
echo "VHOOKCFLAGS=$VHOOKCFLAGS" >> config.mak
echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
echo "SHFLAGS=$SHFLAGS" >> config.mak
echo "YASMFLAGS=$YASMFLAGS" >> config.mak
echo "VHOOKSHFLAGS=$VHOOKSHFLAGS" >> config.mak
echo "VHOOKLIBS=$VHOOKLIBS" >> config.mak
echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
echo "BUILD_STATIC=$static" >> config.mak
echo "BUILDSUF=$build_suffix" >> config.mak
echo "FULLNAME=$FULLNAME" >> config.mak
echo "LIBPREF=$LIBPREF" >> config.mak
echo "LIBSUF=$LIBSUF" >> config.mak
echo "LIBNAME=$LIBNAME" >> config.mak
echo "SLIBPREF=$SLIBPREF" >> config.mak
echo "SLIBSUF=$SLIBSUF" >> config.mak
echo "EXESUF=$EXESUF" >> config.mak
echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
BLOCK_QUOTE

if enabled bigendian; then
    echo "WORDS_BIGENDIAN=yes" >> $MYTH_CONFIG_MAK
    echo "#define WORDS_BIGENDIAN 1" >> $TMPH
fi

if enabled cpuclipspositive; then
    echo "#define CPU_CLIPS_POSITIVE 1" >> $TMPH
else
    echo "#define CPU_CLIPS_POSITIVE 0" >> $TMPH
fi
if enabled cpuclipsnegative; then
    echo "#define CPU_CLIPS_NEGATIVE 1" >> $TMPH
else
   echo "#define CPU_CLIPS_NEGATIVE 0" >> $TMPH
fi
if enabled freetype2; then
    echo "HAVE_FREETYPE2=yes" >> $MYTH_CONFIG_MAK
    echo "FREETYPE_CFLAGS=`freetype-config --cflags`" >> $MYTH_CONFIG_MAK
    echo "FREETYPE_LIBS=`freetype-config --libs`" >> $MYTH_CONFIG_MAK
fi
if enabled fribidi; then
    echo "FRIBIDI_LIBS=`${FRIBIDI_CONFIG} --libs`" >> $MYTH_CONFIG_MAK
    echo "FRIBIDI_CFLAGS=`${FRIBIDI_CONFIG} --cflags`" >> $MYTH_CONFIG_MAK
fi
if enabled sdl; then
    echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> $MYTH_CONFIG_MAK
    echo "SDL_CFLAGS=`"${SDL_CONFIG}" --cflags`" >> $MYTH_CONFIG_MAK
fi
<<BLOCK_QUOTE
if enabled texi2html; then
    echo "BUILD_DOC=yes" >> config.mak
fi
BLOCK_QUOTE

echo "#define SIZEOF_INT $_sizeof_int" >> $TMPH
echo "#define SIZEOF_LONG $_sizeof_long" >> $TMPH

get_version(){
    name=$1
    file=$source_path/$2
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
    lcname=$(tolower $name)
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> $MYTH_CONFIG_MAK
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> $MYTH_CONFIG_MAK
}

get_version LIBSWSCALE  libs/libswscale/swscale.h
get_version LIBPOSTPROC libs/libpostproc/postprocess.h
get_version LIBAVCODEC  libs/libavcodec/avcodec.h
#get_version LIBAVDEVICE libs/libavdevice/avdevice.h
get_version LIBAVFORMAT libs/libavformat/avformat.h
get_version LIBAVUTIL   libs/libavutil/avutil.h
#get_version LIBAVFILTER libs/libavfilter/avfilter.h

if enabled shared; then
    echo "BUILD_SHARED=yes" >> $MYTH_CONFIG_MAK
    echo "PIC=-fPIC -DPIC" >> $MYTH_CONFIG_MAK
<<BLOCK_QUOTE
    echo "LIBTARGET=${LIBTARGET}" >> config.mak
    echo "SLIBNAME=${SLIBNAME}" >> config.mak
    echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
    echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
    echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
    echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
    echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
    echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
BLOCK_QUOTE
fi
if enabled pthreads; then
  if test $target_os != freebsd -a $target_os != openbsd ; then
     extralibs="$extralibs -lpthread"
  fi
fi
echo "" >>$MYTH_CONFIG_MAK

if enabled audio_oss; then
    append CCONFIG "using_oss"
fi
if enabled audio_alsa; then
    append CCONFIG "using_alsa"
  echo "CONFIG_AUDIO_ALSA_LIBS=$audio_alsa_libs" >> $MYTH_CONFIG_MAK
fi

if enabled audio_arts; then
    append CCONFIG "using_arts"
  echo "CONFIG_AUDIO_ARTS_LIBS=$audio_arts_libs" >> $MYTH_CONFIG_MAK
  echo "CONFIG_AUDIO_ARTS_CFLAGS=$audio_arts_cflags" >> $MYTH_CONFIG_MAK
fi

if enabled audio_jack; then
    append CCONFIG "using_jack"
  echo "CONFIG_AUDIO_JACK_LIBS=$audio_jack_libs" >> $MYTH_CONFIG_MAK
fi

if enabled darwin_da; then
  append CCONFIG "darwin_da"
  echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> $MYTH_CONFIG_MAK
fi

if test $target_os = darwin; then
  # Qt, by default builds .app bundles everywhere. Prevent this.
  enabled mac_bundle || echo "CONFIG -= app_bundle" >> $MYTH_CONFIG_MAK
fi

if enabled mac_corevideo; then
  append CCONFIG "using_corevideo"
fi

if test x"$target_os" = x"cygwin" ; then
  echo "#define CONFIG_CYGWIN 1" >> $TMPH
  echo "#ifndef llrint" >> $TMPH
  echo "#define llrint llrint  // make sure not to define twice" >> $TMPH
  echo "static inline long long int llrint (double x)" >> $TMPH
  echo "{" >> $TMPH
  echo "    long long int llrintres;" >> $TMPH
  echo "    asm" >> $TMPH
  echo "    (\"fistpll %0\"" >> $TMPH
  echo "    : \"=m\" (llrintres) : \"t\" (x) : \"st\");" >> $TMPH
  echo "    return llrintres;" >> $TMPH
  echo "}" >> $TMPH
  echo "#endif" >> $TMPH
fi

echo "EXTRALIBS=$extralibs" >> $MYTH_CONFIG_MAK

print_config ARCH_   $TMPH $MYTH_CONFIG_MAK $ARCH_LIST
print_config HAVE_   $TMPH $MYTH_CONFIG_MAK $HAVE_LIST
print_config CONFIG_ $TMPH $MYTH_CONFIG_MAK $CONFIG_LIST   \
                                      $DECODER_LIST      \
                                      $ENCODER_LIST      \
                                      $PARSER_LIST       \
                                      $BSF_LIST          \
                                      $DEMUXER_LIST      \
                                      $MUXER_LIST        \
                                      $FILTER_LIST       \
                                      $PROTOCOL_LIST     \
                                      $INDEV_LIST        \
                                      $OUTDEV_LIST       \
                                      $MYTHTV_LIST       \
                                      $MYTHTV_CONFIG_LIST \

echo "#define restrict $_restrict" >> $TMPH

if enabled small; then
    echo "#define av_always_inline"  >> $TMPH
fi

# Apparently it's not possible to portably echo a backslash.
enabled asmalign_pot &&
    printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
    printf '#define ASMALIGN(ZEROBITS) ".align 1<<" #ZEROBITS "\\n\\t"\n' >> $TMPH

echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH

for opt in $MYTHTV_CONFIG_LIST $USING_LIST; do
    enabled $opt && append CCONFIG "using_$opt"
done

enabled threads && append CCONFIG "using_ffmpeg_threads"


# build tree in object directory if source path is different from current one
if enabled source_path_used; then
    DIRS="\
        doc               \
        libavcodec        \
        libavcodec/alpha  \
        libavcodec/armv4l \
        libavcodec/bfin   \
        libavcodec/i386   \
        libavcodec/mlib   \
        libavcodec/ppc    \
        libavcodec/sh4    \
        libavcodec/sparc  \
        libavdevice       \
        libavfilter       \
        libavformat       \
        libavutil         \
        libpostproc       \
        libswscale        \
        tests             \
        tools             \
        vhook             \
        "
    FILES="\
        Makefile             \
        common.mak           \
        subdir.mak           \
        doc/texi2pod.pl      \
        libavcodec/Makefile  \
        libavdevice/Makefile \
        libavfilter/Makefile \
        libavformat/Makefile \
        libavutil/Makefile   \
        libpostproc/Makefile \
        libswscale/Makefile  \
        "
    for dir in $DIRS ; do
        mkdir -p $dir
    done
    for f in $FILES ; do
        $ln_s "$source_path/$f" $f
    done
fi
echo "SRC_PATH='$source_path'" >> $MYTH_CONFIG_MAK

if disabled frontend; then
    echo
    echo "WARNING: --disable-frontend is only intended to aid porting."
    echo "WARNING: THIS WILL BREAK THINGS. You are on your own now."
fi

if disabled backend; then
    echo
    echo "WARNING: --disable-backend is only intended to aid porting."
    echo "WARNING: You are on your own now."
fi

if enabled proc_opt; then
    echo
    echo "WARNING: When using --enable-proc-opt you must include the "
    echo "         output of ./configure along with any bug report."
fi

if enabled cpu_override; then
    echo
    echo "WARNING: When using --arch=X or --cpu=X you must include the "
    echo "         output of ./configure along with any bug report."
fi

echo # add a newline after any warnings.

if enabled mmx; then
  CONFIG_DEFINES="$CONFIG_DEFINES MMX"
  if test x"$arch" != x"x86_64" ; then
    CONFIG_DEFINES="$CONFIG_DEFINES i386"
  fi
fi

if enabled firewire; then
  if test $target_os = darwin; then
      echo "CONFIG_MAC_AVC=$mac_avc" >>  $MYTH_CONFIG_MAK
  else
      echo "CONFIG_FIREWIRE_LIBS=-lraw1394 -liec61883 -lavc1394 -lrom1394" >>  $MYTH_CONFIG_MAK
      if enabled libavc_5_3; then
        append CCONFIG "using_libavc_5_3"
      fi
  fi
fi

if enabled iptv; then
    append CCONFIG "using_live"
fi

if enabled mheg; then
    append CCONFIG "using_mheg"
fi

if enabled appleremote; then
  append CONFIG_DEFINES "USING_APPLEREMOTE"
fi

if enabled dvb; then
  append CONFIG_INCLUDEPATH "$dvb_path"
fi

if enabled x11; then
  if [ -d $x11_include_path ] ; then
    append CONFIG_INCLUDEPATH "$x11_include_path"
  fi
fi

if enabled xv; then
  echo "CONFIG_XV_LIBS=-lXinerama -lXv -lX11 -lXext -lXxf86vm" >> $MYTH_CONFIG_MAK
fi

if enabled xrandr; then
  echo "CONFIG_XRANDR_LIBS=-lXrandr" >> $MYTH_CONFIG_MAK
fi

if enabled xvmc; then
  echo "CONFIG_XVMC_LIBS=$VENDOR_XVMC_LIBS -lXvMC" >> $MYTH_CONFIG_MAK
  if test x"$VENDOR_XVMC_LIBS" = x"-lXvMCNVIDIA" ; then
      append CCONFIG "using_xvmc_pbuffer"
  fi
fi

if enabled directfb; then
  echo "CONFIG_DIRECTFB_LIBS=$CONFIG_DIRECTFB_LIBS" >> $MYTH_CONFIG_MAK
  echo "CONFIG_DIRECTFB_CXXFLAGS=$CONFIG_DIRECTFB_CXXFLAGS" >> $MYTH_CONFIG_MAK
fi

if enabled directx; then
  append CONFIG_DEFINES "USING_DIRECTX"
fi

if ! enabled darwin; then
  if enabled opengl; then
    echo "CONFIG_OPENGL_LIBS=-lGL -lGLU" >> $MYTH_CONFIG_MAK
  fi
fi

if test x"$CCONFIG" != x"" ; then
  echo "CCONFIG=$CCONFIG" >> $MYTH_CONFIG_MAK
  echo "#define MYTH_BUILD_CONFIG \"$CCONFIG\"" >>$TMPH
fi

if test x"$CONFIG_DEFINES" != x"" ; then
  echo "CONFIG_DEFINES=$CONFIG_DEFINES" >> $MYTH_CONFIG_MAK
fi

if test x"$CONFIG_INCLUDEPATH" != x"" ; then
  echo "CONFIG_INCLUDEPATH=$CONFIG_INCLUDEPATH" >> $MYTH_CONFIG_MAK
fi

if test x"$GCC_MAJOR" != x"" ; then
  echo "GCC_MAJOR=$GCC_MAJOR" >> $MYTH_CONFIG_MAK
fi

if test x"$GCC_MINOR" != x"" ; then
  echo "GCC_MINOR=$GCC_MINOR" >> $MYTH_CONFIG_MAK
fi

echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

cat <<EOF >> $MYTH_CONFIG_MAK
# HACK: If Qt 4 and MythTV's installed library dirs are the same, remove the
#       -L from early in the link line, to ignore any old installed libmyth*
# Note: Qt uses QMAKE_INCDIR_QT to build an absolute path for include
#       directories, it cannot be modified.
QMAKE_LIBDIR_QT -= $libdir
LATE_LIBS            += -L$libdir
EOF

diff $TMPH $MYTH_CONFIG_H >/dev/null 2>&1
if test $? -ne 0 ; then
  mv -f $TMPH $MYTH_CONFIG_H
  rm -f config.h
else
  echo "$MYTH_CONFIG_H is unchanged"
fi

if ! test -L config.h ; then
  ln -s $MYTH_CONFIG_H config.h
fi

if [ ! -e config.h ] ; then
  ln -s $MYTH_CONFIG_H config.h
fi

rm -f config.mak
ln -s $MYTH_CONFIG_MAK config.mak


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

# Create a special cleanup makefile that will allow make clean to work
if [ ! -e config ] ; then
  mkdir config
fi
cat - > config/Makefile <<END

all:
qmake_all:
	\$(NONE)

clean:
	\$(NONE)

install:
	\$(NONE)

# Hack to remove some empty directories that qmake doesn't create rules for
uninstall:
	-rmdir \$(INSTALL_ROOT)/$prefix/include/mythtv
	-rmdir \$(INSTALL_ROOT)/$prefix/lib/mythtv
	-rmdir \$(INSTALL_ROOT)/$prefix/share/mythtv

distclean: clean
	-rm -f ../$MYTH_CONFIG_MAK  ../config.mak
	-rm -f ../$MYTH_CONFIG_H    ../config.h
	-rm -f ../Makefile          ../config.err

END

$qmake QMAKE=$(which $qmake) mythtv.pro

