chasing indexing error

author: Tim Redfern <tim@eclectronics.org> 2014-02-17 13:36:38 +0000
committer: Tim Redfern <tim@eclectronics.org> 2014-02-17 13:36:38 +0000
commit: 22e28216336da876e1fd17f380ce42eaf1446769 (patch)
tree: 444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/configure
parent: ae5e8541f6e06e64c28719467cdf366ac57aff31 (diff)
1 files changed, 0 insertions, 5210 deletions
diff --git a/ffmpeg/configure b/ffmpeg/configure
deleted file mode 100755
index 9c210e9..0000000
--- a/ffmpeg/configure
+++ /dev/null
@@ -1,5210 +0,0 @@
-#!/bin/sh
-#
-# FFmpeg configure script
-#
-# Copyright (c) 2000-2002 Fabrice Bellard
-# Copyright (c) 2005-2008 Diego Biurrun
-# Copyright (c) 2005-2008 Mans Rullgard
-#
-
-# Prevent locale nonsense from breaking basic text processing.
-LC_ALL=C
-export LC_ALL
-
-# make sure we are running under a compatible shell
-# try to make this part work with most shells
-
-try_exec(){
-    echo "Trying shell $1"
-    type "$1" > /dev/null 2>&1 && exec "$@"
-}
-
-unset foo
-(: ${foo%%bar}) 2> /dev/null
-E1="$?"
-
-(: ${foo?}) 2> /dev/null
-E2="$?"
-
-if test "$E1" != 0 || test "$E2" = 0; then
-    echo "Broken shell detected.  Trying alternatives."
-    export FF_CONF_EXEC
-    if test "0$FF_CONF_EXEC" -lt 1; then
-        FF_CONF_EXEC=1
-        try_exec bash "$0" "$@"
-    fi
-    if test "0$FF_CONF_EXEC" -lt 2; then
-        FF_CONF_EXEC=2
-        try_exec ksh "$0" "$@"
-    fi
-    if test "0$FF_CONF_EXEC" -lt 3; then
-        FF_CONF_EXEC=3
-        try_exec /usr/xpg4/bin/sh "$0" "$@"
-    fi
-    echo "No compatible shell script interpreter found."
-    echo "This configure script requires a POSIX-compatible shell"
-    echo "such as bash or ksh."
-    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
-    echo "Instead, install a working POSIX-compatible shell."
-    echo "Disabling this configure test will create a broken FFmpeg."
-    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
-        echo "This bash version ($BASH_VERSION) is broken on your platform."
-        echo "Upgrade to a later version if available."
-    fi
-    exit 1
-fi
-
-test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
-
-show_help(){
-    cat <<EOF
-Usage: configure [options]
-Options: [defaults in brackets after descriptions]
-
-Help options:
-  --help                   print this message
-  --list-decoders          show all available decoders
-  --list-encoders          show all available encoders
-  --list-hwaccels          show all available hardware accelerators
-  --list-demuxers          show all available demuxers
-  --list-muxers            show all available muxers
-  --list-parsers           show all available parsers
-  --list-protocols         show all available protocols
-  --list-bsfs              show all available bitstream filters
-  --list-indevs            show all available input devices
-  --list-outdevs           show all available output devices
-  --list-filters           show all available filters
-
-Standard options:
-  --logfile=FILE           log tests and output to FILE [config.log]
-  --disable-logging        do not log configure debug information
-  --fatal-warnings         fail if any configure warning is generated
-  --prefix=PREFIX          install in PREFIX [$prefix]
-  --bindir=DIR             install binaries in DIR [PREFIX/bin]
-  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
-  --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
-  --libdir=DIR             install libs in DIR [PREFIX/lib]
-  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
-  --incdir=DIR             install includes in DIR [PREFIX/include]
-  --mandir=DIR             install man page in DIR [PREFIX/share/man]
-  --enable-rpath           use rpath to allow installing libraries in paths
-                           not part of the dynamic linker search path
-
-Licensing options:
-  --enable-gpl             allow use of GPL code, the resulting libs
-                           and binaries will be under GPL [no]
-  --enable-version3        upgrade (L)GPL to version 3 [no]
-  --enable-nonfree         allow use of nonfree code, the resulting libs
-                           and binaries will be unredistributable [no]
-
-Configuration options:
-  --disable-static         do not build static libraries [no]
-  --enable-shared          build shared libraries [no]
-  --enable-small           optimize for size instead of speed
-  --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
-  --enable-gray            enable full grayscale support (slower color)
-  --disable-swscale-alpha  disable alpha channel support in swscale
-  --disable-all            disable building components, libraries and programs
-  --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
-  --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
-  --enable-raise-major     increase major version numbers in sonames [no]
-
-Program options:
-  --disable-programs       do not build command line programs
-  --disable-ffmpeg         disable ffmpeg build
-  --disable-ffplay         disable ffplay build
-  --disable-ffprobe        disable ffprobe build
-  --disable-ffserver       disable ffserver build
-
-Documentation options:
-  --disable-doc            do not build documentation
-  --disable-htmlpages      do not build HTML documentation pages
-  --disable-manpages       do not build man documentation pages
-  --disable-podpages       do not build POD documentation pages
-  --disable-txtpages       do not build text documentation pages
-
-Component options:
-  --disable-avdevice       disable libavdevice build
-  --disable-avcodec        disable libavcodec build
-  --disable-avformat       disable libavformat build
-  --disable-avutil         disable libavutil build
-  --disable-swresample     disable libswresample build
-  --disable-swscale        disable libswscale build
-  --disable-postproc       disable libpostproc build
-  --disable-avfilter       disable libavfilter build
-  --enable-avresample      enable libavresample build [no]
-  --disable-pthreads       disable pthreads [auto]
-  --disable-w32threads     disable Win32 threads [auto]
-  --disable-os2threads     disable OS/2 threads [auto]
-  --disable-network        disable network support [no]
-  --disable-dct            disable DCT code
-  --disable-dwt            disable DWT code
-  --disable-error-resilience disable error resilience code
-  --disable-lsp            disable LSP code
-  --disable-lzo            disable LZO decoder code
-  --disable-mdct           disable MDCT code
-  --disable-rdft           disable RDFT code
-  --disable-fft            disable FFT code
-
-Hardware accelerators:
-  --disable-dxva2          disable DXVA2 code [autodetect]
-  --disable-vaapi          disable VAAPI code [autodetect]
-  --enable-vda             enable VDA code
-  --disable-vdpau          disable VDPAU code [autodetect]
-
-Individual component options:
-  --disable-everything     disable all components listed below
-  --disable-encoder=NAME   disable encoder NAME
-  --enable-encoder=NAME    enable encoder NAME
-  --disable-encoders       disable all encoders
-  --disable-decoder=NAME   disable decoder NAME
-  --enable-decoder=NAME    enable decoder NAME
-  --disable-decoders       disable all decoders
-  --disable-hwaccel=NAME   disable hwaccel NAME
-  --enable-hwaccel=NAME    enable hwaccel NAME
-  --disable-hwaccels       disable all hwaccels
-  --disable-muxer=NAME     disable muxer NAME
-  --enable-muxer=NAME      enable muxer NAME
-  --disable-muxers         disable all muxers
-  --disable-demuxer=NAME   disable demuxer NAME
-  --enable-demuxer=NAME    enable demuxer NAME
-  --disable-demuxers       disable all demuxers
-  --enable-parser=NAME     enable parser NAME
-  --disable-parser=NAME    disable parser NAME
-  --disable-parsers        disable all parsers
-  --enable-bsf=NAME        enable bitstream filter NAME
-  --disable-bsf=NAME       disable bitstream filter NAME
-  --disable-bsfs           disable all bitstream filters
-  --enable-protocol=NAME   enable protocol NAME
-  --disable-protocol=NAME  disable protocol NAME
-  --disable-protocols      disable all protocols
-  --enable-indev=NAME      enable input device NAME
-  --disable-indev=NAME     disable input device NAME
-  --disable-indevs         disable input devices
-  --enable-outdev=NAME     enable output device NAME
-  --disable-outdev=NAME    disable output device NAME
-  --disable-outdevs        disable output devices
-  --disable-devices        disable all devices
-  --enable-filter=NAME     enable filter NAME
-  --disable-filter=NAME    disable filter NAME
-  --disable-filters        disable all filters
-
-External library support:
-  --enable-avisynth        enable reading of AviSynth script files [no]
-  --disable-bzlib          disable bzlib [autodetect]
-  --enable-fontconfig      enable fontconfig
-  --enable-frei0r          enable frei0r video filtering
-  --enable-gnutls          enable gnutls [no]
-  --disable-iconv          disable iconv [autodetect]
-  --enable-ladspa          enable LADSPA audio filtering
-  --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
-  --enable-libass          enable libass subtitles rendering [no]
-  --enable-libbluray       enable BluRay reading using libbluray [no]
-  --enable-libcaca         enable textual display using libcaca
-  --enable-libcelt         enable CELT decoding via libcelt [no]
-  --enable-libcdio         enable audio CD grabbing with libcdio
-  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
-                           and libraw1394 [no]
-  --enable-libfaac         enable AAC encoding via libfaac [no]
-  --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
-  --enable-libflite        enable flite (voice synthesis) support via libflite [no]
-  --enable-libfreetype     enable libfreetype [no]
-  --enable-libgme          enable Game Music Emu via libgme [no]
-  --enable-libgsm          enable GSM de/encoding via libgsm [no]
-  --enable-libiec61883     enable iec61883 via libiec61883 [no]
-  --enable-libilbc         enable iLBC de/encoding via libilbc [no]
-  --enable-libmodplug      enable ModPlug via libmodplug [no]
-  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
-  --enable-libnut          enable NUT (de)muxing via libnut,
-                           native (de)muxer exists [no]
-  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
-  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
-  --enable-libopencv       enable video filtering via libopencv [no]
-  --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
-  --enable-libopus         enable Opus decoding via libopus [no]
-  --enable-libpulse        enable Pulseaudio input via libpulse [no]
-  --enable-libquvi         enable quvi input via libquvi [no]
-  --enable-librtmp         enable RTMP[E] support via librtmp [no]
-  --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
-  --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
-  --enable-libsoxr         enable Include libsoxr resampling [no]
-  --enable-libspeex        enable Speex de/encoding via libspeex [no]
-  --enable-libssh          enable SFTP protocol via libssh [no]
-  --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
-  --enable-libtheora       enable Theora encoding via libtheora [no]
-  --enable-libtwolame      enable MP2 encoding via libtwolame [no]
-  --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
-  --enable-libv4l2         enable libv4l2/v4l-utils [no]
-  --enable-libvidstab      enable video stabilization using vid.stab [no]
-  --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
-  --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
-  --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
-                           native implementation exists [no]
-  --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
-  --enable-libwavpack      enable wavpack encoding via libwavpack [no]
-  --enable-libwebp         enable WebP encoding via libwebp [no]
-  --enable-libx264         enable H.264 encoding via x264 [no]
-  --enable-libxavs         enable AVS encoding via xavs [no]
-  --enable-libxvid         enable Xvid encoding via xvidcore,
-                           native MPEG-4/Xvid encoder exists [no]
-  --enable-libzmq          enable message passing via libzmq [no]
-  --enable-libzvbi         enable teletext support via libzvbi [no]
-  --enable-openal          enable OpenAL 1.1 capture support [no]
-  --enable-opencl          enable OpenCL code
-  --enable-openssl         enable openssl [no]
-  --enable-x11grab         enable X11 grabbing [no]
-  --disable-zlib           disable zlib [autodetect]
-
-Advanced options (experts only):
-  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
-  --enable-cross-compile   assume a cross-compiler is used
-  --sysroot=PATH           root of cross-build tree
-  --sysinclude=PATH        location of cross-build system headers
-  --target-os=OS           compiler targets OS [$target_os]
-  --target-exec=CMD        command to run executables on target
-  --target-path=DIR        path to view of build directory on target
-  --target-samples=DIR     path to samples directory on target
-  --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
-  --toolchain=NAME         set tool defaults according to NAME
-  --nm=NM                  use nm tool NM [$nm_default]
-  --ar=AR                  use archive tool AR [$ar_default]
-  --as=AS                  use assembler AS [$as_default]
-  --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
-  --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
-  --cc=CC                  use C compiler CC [$cc_default]
-  --cxx=CXX                use C compiler CXX [$cxx_default]
-  --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
-  --ld=LD                  use linker LD [$ld_default]
-  --host-cc=HOSTCC         use host C compiler HOSTCC
-  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
-  --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
-  --host-ld=HOSTLD         use host linker HOSTLD
-  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
-  --host-libs=HLIBS        use libs HLIBS when linking for host
-  --host-os=OS             compiler host OS [$target_os]
-  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
-  --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
-  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
-  --extra-libs=ELIBS       add ELIBS [$ELIBS]
-  --extra-version=STRING   version string suffix []
-  --optflags=OPTFLAGS      override optimization-related compiler flags
-  --build-suffix=SUFFIX    library name suffix []
-  --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
-  --progs-suffix=SUFFIX    program name suffix []
-  --arch=ARCH              select architecture [$arch]
-  --cpu=CPU                select the minimum required CPU (affects
-                           instruction selection, may crash on older CPUs)
-  --enable-pic             build position-independent code
-  --enable-sram            allow use of on-chip SRAM
-  --enable-thumb           compile for Thumb instruction set
-  --disable-symver         disable symbol versioning
-  --enable-hardcoded-tables use hardcoded tables instead of runtime generation
-  --disable-safe-bitstream-reader
-                           disable buffer boundary checking in bitreaders
-                           (faster, but may crash)
-  --enable-memalign-hack   emulate memalign, interferes with memory debuggers
-  --enable-lto             use link-time optimization
-
-Optimization options (experts only):
-  --disable-asm            disable all assembler optimizations
-  --disable-altivec        disable AltiVec optimizations
-  --disable-amd3dnow       disable 3DNow! optimizations
-  --disable-amd3dnowext    disable 3DNow! extended optimizations
-  --disable-mmx            disable MMX optimizations
-  --disable-mmxext         disable MMXEXT optimizations
-  --disable-sse            disable SSE optimizations
-  --disable-sse2           disable SSE2 optimizations
-  --disable-sse3           disable SSE3 optimizations
-  --disable-ssse3          disable SSSE3 optimizations
-  --disable-sse4           disable SSE4 optimizations
-  --disable-sse42          disable SSE4.2 optimizations
-  --disable-avx            disable AVX optimizations
-  --disable-fma4           disable FMA4 optimizations
-  --disable-avx2           disable AVX2 optimizations
-  --disable-armv5te        disable armv5te optimizations
-  --disable-armv6          disable armv6 optimizations
-  --disable-armv6t2        disable armv6t2 optimizations
-  --disable-vfp            disable VFP optimizations
-  --disable-neon           disable NEON optimizations
-  --disable-vis            disable VIS optimizations
-  --disable-inline-asm     disable use of inline assembler
-  --disable-yasm           disable use of yasm assembler
-  --disable-mips32r2       disable MIPS32R2 optimizations
-  --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
-  --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
-  --disable-mipsfpu        disable floating point MIPS optimizations
-  --disable-fast-unaligned consider unaligned accesses slow
-
-Developer options (useful when working on FFmpeg itself):
-  --disable-debug          disable debugging symbols
-  --enable-debug=LEVEL     set the debug level [$debuglevel]
-  --disable-optimizations  disable compiler optimizations
-  --enable-extra-warnings  enable more compiler warnings
-  --disable-stripping      disable stripping of executables and shared libraries
-  --assert-level=level     0(default), 1 or 2, amount of assertion testing,
-                           2 causes a slowdown at runtime.
-  --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
-  --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
-                           leaks and errors, using the specified valgrind binary.
-                           Cannot be combined with --target-exec
-  --enable-ftrapv          Trap arithmetic overflows
-  --samples=PATH           location of test samples for FATE, if not set use
-                           \$FATE_SAMPLES at make invocation time.
-  --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
-                           should be used only for debugging purposes)
-  --enable-random          randomly enable/disable components
-  --disable-random
-  --enable-random=LIST     randomly enable/disable specific components or
-  --disable-random=LIST    component groups. LIST is a comma-separated list
-                           of NAME[:PROB] entries where NAME is a component
-                           (group) and PROB the probability associated with
-                           NAME (default 0.5).
-  --random-seed=VALUE      seed value for --enable/disable-random
-
-NOTE: Object files are built at the place where configure is launched.
-EOF
-  exit 0
-}
-
-quotes='""'
-
-log(){
-    echo "$@" >> $logfile
-}
-
-log_file(){
-    log BEGIN $1
-    pr -n -t $1 >> $logfile
-    log END $1
-}
-
-echolog(){
-    log "$@"
-    echo "$@"
-}
-
-warn(){
-    log "WARNING: $*"
-    WARNINGS="${WARNINGS}WARNING: $*\n"
-}
-
-die(){
-    echolog "$@"
-    cat <<EOF
-
-If you think configure made a mistake, make sure you are using the latest
-version from Git.  If the latest version fails, report the problem to the
-ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
-EOF
-    if disabled logging; then
-        cat <<EOF
-Rerun configure with logging enabled (do not use --disable-logging), and
-include the log this produces with your report.
-EOF
-    else
-        cat <<EOF
-Include the log file "$logfile" produced by configure as this will help
-solving the problem.
-EOF
-    fi
-    exit 1
-}
-
-# Avoid locale weirdness, besides we really just want to translate ASCII.
-toupper(){
-    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
-}
-
-tolower(){
-    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
-}
-
-c_escape(){
-    echo "$*" | sed 's/["\\]/\\\0/g'
-}
-
-sh_quote(){
-    v=$(echo "$1" | sed "s/'/'\\\\''/g")
-    test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
-    echo "$v"
-}
-
-cleanws(){
-    echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
-}
-
-filter(){
-    pat=$1
-    shift
-    for v; do
-        eval "case $v in $pat) echo $v ;; esac"
-    done
-}
-
-filter_out(){
-    pat=$1
-    shift
-    for v; do
-        eval "case $v in $pat) ;; *) echo $v ;; esac"
-    done
-}
-
-map(){
-    m=$1
-    shift
-    for v; do eval $m; done
-}
-
-add_suffix(){
-    suffix=$1
-    shift
-    for v; do echo ${v}${suffix}; done
-}
-
-set_all(){
-    value=$1
-    shift
-    for var in $*; do
-        eval $var=$value
-    done
-}
-
-set_weak(){
-    value=$1
-    shift
-    for var; do
-        eval : \${$var:=$value}
-    done
-}
-
-sanitize_var_name(){
-    echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
-}
-
-set_safe(){
-    var=$1
-    shift
-    eval $(sanitize_var_name "$var")='$*'
-}
-
-get_safe(){
-    eval echo \$$(sanitize_var_name "$1")
-}
-
-pushvar(){
-    for pvar in $*; do
-        eval level=\${${pvar}_level:=0}
-        eval ${pvar}_${level}="\$$pvar"
-        eval ${pvar}_level=$(($level+1))
-    done
-}
-
-popvar(){
-    for pvar in $*; do
-        eval level=\${${pvar}_level:-0}
-        test $level = 0 && continue
-        eval level=$(($level-1))
-        eval $pvar="\${${pvar}_${level}}"
-        eval ${pvar}_level=$level
-        eval unset ${pvar}_${level}
-    done
-}
-
-enable(){
-    set_all yes $*
-}
-
-disable(){
-    set_all no $*
-}
-
-enable_weak(){
-    set_weak yes $*
-}
-
-disable_weak(){
-    set_weak no $*
-}
-
-enable_safe(){
-    for var; do
-        enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
-    done
-}
-
-disable_safe(){
-    for var; do
-        disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
-    done
-}
-
-do_enable_deep(){
-    for var; do
-        enabled $var && continue
-        eval sel="\$${var}_select"
-        eval sgs="\$${var}_suggest"
-        pushvar var sgs
-        enable_deep $sel
-        popvar sgs
-        enable_deep_weak $sgs
-        popvar var
-    done
-}
-
-enable_deep(){
-    do_enable_deep $*
-    enable $*
-}
-
-enable_deep_weak(){
-    for var; do
-        disabled $var && continue
-        pushvar var
-        do_enable_deep $var
-        popvar var
-        enable_weak $var
-    done
-}
-
-enabled(){
-    test "${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 $opt && return 0
-    done
-    return 1
-}
-
-set_default(){
-    for opt; do
-        eval : \${$opt:=\$${opt}_default}
-    done
-}
-
-is_in(){
-    value=$1
-    shift
-    for var in $*; do
-        [ $var = $value ] && return 0
-    done
-    return 1
-}
-
-do_check_deps(){
-    for cfg; do
-        cfg="${cfg#!}"
-        enabled ${cfg}_checking && die "Circular dependency for $cfg."
-        disabled ${cfg}_checking && continue
-        enable ${cfg}_checking
-        append allopts $cfg
-
-        eval dep_all="\$${cfg}_deps"
-        eval dep_any="\$${cfg}_deps_any"
-        eval dep_sel="\$${cfg}_select"
-        eval dep_sgs="\$${cfg}_suggest"
-        eval dep_ifa="\$${cfg}_if"
-        eval dep_ifn="\$${cfg}_if_any"
-
-        pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
-        do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
-        popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
-
-        [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
-        [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
-        enabled_all  $dep_all || disable $cfg
-        enabled_any  $dep_any || disable $cfg
-        disabled_any $dep_sel && disable $cfg
-
-        if enabled $cfg; then
-            enable_deep $dep_sel
-            enable_deep_weak $dep_sgs
-        fi
-
-        disable ${cfg}_checking
-    done
-}
-
-check_deps(){
-    unset allopts
-
-    do_check_deps "$@"
-
-    for cfg in $allopts; do
-        enabled $cfg || continue
-        eval dep_extralibs="\$${cfg}_extralibs"
-        test -n "$dep_extralibs" && add_extralibs $dep_extralibs
-    done
-}
-
-print_config(){
-    pfx=$1
-    files=$2
-    shift 2
-    map 'eval echo "$v \${$v:-no}"' "$@" |
-    awk "BEGIN { split(\"$files\", files) }
-        {
-            c = \"$pfx\" toupper(\$1);
-            v = \$2;
-            sub(/yes/, 1, v);
-            sub(/no/,  0, v);
-            for (f in files) {
-                file = files[f];
-                if (file ~ /\\.h\$/) {
-                    printf(\"#define %s %d\\n\", c, v) >>file;
-                } else if (file ~ /\\.asm\$/) {
-                    printf(\"%%define %s %d\\n\", c, v) >>file;
-                } else if (file ~ /\\.mak\$/) {
-                    n = -v ? \"\" : \"!\";
-                    printf(\"%s%s=yes\\n\", n, c) >>file;
-                } else if (file ~ /\\.texi\$/) {
-                    pre = -v ? \"\" : \"@c \";
-                    yesno = \$2;
-                    c2 = tolower(c);
-                    gsub(/_/, \"-\", c2);
-                    printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
-                }
-            }
-        }"
-}
-
-print_enabled(){
-    suf=$1
-    shift
-    for v; do
-        enabled $v && printf "%s\n" ${v%$suf};
-    done
-}
-
-append(){
-    var=$1
-    shift
-    eval "$var=\"\$$var $*\""
-}
-
-prepend(){
-    var=$1
-    shift
-    eval "$var=\"$* \$$var\""
-}
-
-add_cppflags(){
-    append CPPFLAGS "$@"
-}
-
-add_cflags(){
-    append CFLAGS $($cflags_filter "$@")
-}
-
-add_cxxflags(){
-    append CXXFLAGS $($cflags_filter "$@")
-}
-
-add_asflags(){
-    append ASFLAGS $($asflags_filter "$@")
-}
-
-add_ldflags(){
-    append LDFLAGS $($ldflags_filter "$@")
-}
-
-add_stripflags(){
-    append ASMSTRIPFLAGS "$@"
-}
-
-add_extralibs(){
-    prepend extralibs $($ldflags_filter "$@")
-}
-
-add_host_cppflags(){
-    append host_cppflags "$@"
-}
-
-add_host_cflags(){
-    append host_cflags $($host_cflags_filter "$@")
-}
-
-add_host_ldflags(){
-    append host_ldflags $($host_ldflags_filter "$@")
-}
-
-add_compat(){
-    append compat_objs $1
-    shift
-    map 'add_cppflags -D$v' "$@"
-}
-
-check_cmd(){
-    log "$@"
-    "$@" >> $logfile 2>&1
-}
-
-cc_o(){
-    eval printf '%s\\n' $CC_O
-}
-
-cc_e(){
-    eval printf '%s\\n' $CC_E
-}
-
-check_cc(){
-    log check_cc "$@"
-    cat > $TMPC
-    log_file $TMPC
-    check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
-}
-
-check_cxx(){
-    log check_cxx "$@"
-    cat > $TMPCPP
-    log_file $TMPCPP
-    check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
-}
-
-check_cpp(){
-    log check_cpp "$@"
-    cat > $TMPC
-    log_file $TMPC
-    check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
-}
-
-as_o(){
-    eval printf '%s\\n' $AS_O
-}
-
-check_as(){
-    log check_as "$@"
-    cat > $TMPS
-    log_file $TMPS
-    check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
-}
-
-check_inline_asm(){
-    log check_inline_asm "$@"
-    name="$1"
-    code="$2"
-    shift 2
-    disable $name
-    check_cc "$@" <<EOF && enable $name
-void foo(void){ __asm__ volatile($code); }
-EOF
-}
-
-check_insn(){
-    log check_insn "$@"
-    check_inline_asm ${1}_inline "\"$2\""
-    echo "$2" | check_as && enable ${1}_external || disable ${1}_external
-}
-
-check_yasm(){
-    log check_yasm "$@"
-    echo "$1" > $TMPS
-    log_file $TMPS
-    shift 1
-    check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
-}
-
-ld_o(){
-    eval printf '%s\\n' $LD_O
-}
-
-check_ld(){
-    log check_ld "$@"
-    type=$1
-    shift 1
-    flags=$(filter_out '-l*|*.so' $@)
-    libs=$(filter '-l*|*.so' $@)
-    check_$type $($cflags_filter $flags) || return
-    flags=$($ldflags_filter $flags)
-    libs=$($ldflags_filter $libs)
-    check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
-}
-
-check_code(){
-    log check_code "$@"
-    check=$1
-    headers=$2
-    code=$3
-    shift 3
-    {
-        for hdr in $headers; do
-            echo "#include <$hdr>"
-        done
-        echo "int main(void) { $code; return 0; }"
-    } | check_$check "$@"
-}
-
-check_cppflags(){
-    log check_cppflags "$@"
-    check_cc "$@" <<EOF && append CPPFLAGS "$@"
-int x;
-EOF
-}
-
-test_cflags(){
-    log test_cflags "$@"
-    set -- $($cflags_filter "$@")
-    check_cc "$@" <<EOF
-int x;
-EOF
-}
-
-check_cflags(){
-    log check_cflags "$@"
-    test_cflags "$@" && add_cflags "$@"
-}
-
-check_cxxflags(){
-    log check_cxxflags "$@"
-    set -- $($cflags_filter "$@")
-    check_cxx "$@" <<EOF && append CXXFLAGS "$@"
-int x;
-EOF
-}
-
-test_ldflags(){
-    log test_ldflags "$@"
-    check_ld "cc" "$@" <<EOF
-int main(void){ return 0; }
-EOF
-}
-
-check_ldflags(){
-    log check_ldflags "$@"
-    test_ldflags "$@" && add_ldflags "$@"
-}
-
-test_stripflags(){
-    log test_stripflags "$@"
-    # call check_cc to get a fresh TMPO
-    check_cc <<EOF
-int main(void) { return 0; }
-EOF
-    check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
-}
-
-check_stripflags(){
-    log check_stripflags "$@"
-    test_stripflags "$@" && add_stripflags "$@"
-}
-
-check_header(){
-    log check_header "$@"
-    header=$1
-    shift
-    disable_safe $header
-    check_cpp "$@" <<EOF && enable_safe $header
-#include <$header>
-int x;
-EOF
-}
-
-check_func(){
-    log check_func "$@"
-    func=$1
-    shift
-    disable $func
-    check_ld "cc" "$@" <<EOF && enable $func
-extern int $func();
-int main(void){ $func(); }
-EOF
-}
-
-check_mathfunc(){
-    log check_mathfunc "$@"
-    func=$1
-    narg=$2
-    shift 2
-    test $narg = 2 && args="f, g" || args="f"
-    disable $func
-    check_ld "cc" "$@" <<EOF && enable $func
-#include <math.h>
-float foo(float f, float g) { return $func($args); }
-int main(void){ return (int) foo; }
-EOF
-}
-
-check_func_headers(){
-    log check_func_headers "$@"
-    headers=$1
-    funcs=$2
-    shift 2
-    {
-        for hdr in $headers; do
-            echo "#include <$hdr>"
-        done
-        for func in $funcs; do
-            echo "long check_$func(void) { return (long) $func; }"
-        done
-        echo "int main(void) { return 0; }"
-    } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
-}
-
-check_class_headers_cpp(){
-    log check_class_headers_cpp "$@"
-    headers=$1
-    classes=$2
-    shift 2
-    {
-        for hdr in $headers; do
-            echo "#include <$hdr>"
-        done
-        echo "int main(void) { "
-        i=1
-        for class in $classes; do
-            echo "$class obj$i;"
-            i=$(expr $i + 1)
-        done
-        echo "return 0; }"
-    } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
-}
-
-check_cpp_condition(){
-    log check_cpp_condition "$@"
-    header=$1
-    condition=$2
-    shift 2
-    check_cpp "$@" <<EOF
-#include <$header>
-#if !($condition)
-#error "unsatisfied condition: $condition"
-#endif
-EOF
-}
-
-check_lib(){
-    log check_lib "$@"
-    header="$1"
-    func="$2"
-    shift 2
-    check_header $header && check_func $func "$@" && add_extralibs "$@"
-}
-
-check_lib2(){
-    log check_lib2 "$@"
-    headers="$1"
-    funcs="$2"
-    shift 2
-    check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
-}
-
-check_lib_cpp(){
-    log check_lib_cpp "$@"
-    headers="$1"
-    classes="$2"
-    shift 2
-    check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
-}
-
-check_pkg_config(){
-    log check_pkg_config "$@"
-    pkg="$1"
-    headers="$2"
-    funcs="$3"
-    shift 3
-    check_cmd $pkg_config --exists --print-errors $pkg || return
-    pkg_cflags=$($pkg_config --cflags $pkg)
-    pkg_libs=$($pkg_config --libs $pkg)
-    check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
-        set_safe ${pkg}_cflags $pkg_cflags   &&
-        set_safe ${pkg}_libs   $pkg_libs
-}
-
-check_exec(){
-    check_ld "cc" "$@" && { 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 foo(void){
-    $code
-}
-int (*func_ptr)(void) = foo;
-int main(void){
-    signal(SIGILL, sighandler);
-    signal(SIGFPE, sighandler);
-    signal(SIGSEGV, sighandler);
-#ifdef SIGBUS
-    signal(SIGBUS, sighandler);
-#endif
-    return func_ptr();
-}
-EOF
-}
-
-check_type(){
-    log check_type "$@"
-    headers=$1
-    type=$2
-    shift 2
-    disable_safe "$type"
-    check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
-}
-
-check_struct(){
-    log check_struct "$@"
-    headers=$1
-    struct=$2
-    member=$3
-    shift 3
-    disable_safe "${struct}_${member}"
-    check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
-        enable_safe "${struct}_${member}"
-}
-
-check_builtin(){
-    log check_builtin "$@"
-    name=$1
-    headers=$2
-    builtin=$3
-    shift 3
-    disable "$name"
-    check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
-}
-
-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"
-}
-
-require_cpp(){
-    name="$1"
-    headers="$2"
-    classes="$3"
-    shift 3
-    check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
-}
-
-require_pkg_config(){
-    pkg="$1"
-    check_pkg_config "$@" || die "ERROR: $pkg not found"
-    add_cflags    $(get_safe ${pkg}_cflags)
-    add_extralibs $(get_safe ${pkg}_libs)
-}
-
-require_libfreetype(){
-    log require_libfreetype "$@"
-    pkg="freetype2"
-    check_cmd $pkg_config --exists --print-errors $pkg \
-      || die "ERROR: $pkg not found"
-    pkg_cflags=$($pkg_config --cflags $pkg)
-    pkg_libs=$($pkg_config --libs $pkg)
-    {
-        echo "#include <ft2build.h>"
-        echo "#include FT_FREETYPE_H"
-        echo "long check_func(void) { return (long) FT_Init_FreeType; }"
-        echo "int main(void) { return 0; }"
-    } | check_ld "cc" $pkg_cflags $pkg_libs \
-      && set_safe ${pkg}_cflags $pkg_cflags \
-      && set_safe ${pkg}_libs   $pkg_libs \
-      || die "ERROR: $pkg not found"
-    add_cflags    $(get_safe ${pkg}_cflags)
-    add_extralibs $(get_safe ${pkg}_libs)
-}
-
-hostcc_e(){
-    eval printf '%s\\n' $HOSTCC_E
-}
-
-hostcc_o(){
-    eval printf '%s\\n' $HOSTCC_O
-}
-
-check_host_cc(){
-    log check_host_cc "$@"
-    cat > $TMPC
-    log_file $TMPC
-    check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
-}
-
-check_host_cpp(){
-    log check_host_cpp "$@"
-    cat > $TMPC
-    log_file $TMPC
-    check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
-}
-
-check_host_cppflags(){
-    log check_host_cppflags "$@"
-    check_host_cc "$@" <<EOF && append host_cppflags "$@"
-int x;
-EOF
-}
-
-check_host_cflags(){
-    log check_host_cflags "$@"
-    set -- $($host_cflags_filter "$@")
-    check_host_cc "$@" <<EOF && append host_cflags "$@"
-int x;
-EOF
-}
-
-check_host_cpp_condition(){
-    log check_host_cpp_condition "$@"
-    header=$1
-    condition=$2
-    shift 2
-    check_host_cpp "$@" <<EOF
-#include <$header>
-#if !($condition)
-#error "unsatisfied condition: $condition"
-#endif
-EOF
-}
-
-apply(){
-    file=$1
-    shift
-    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
-}
-
-cp_if_changed(){
-    cmp -s "$1" "$2" && echo "$2 is unchanged" && return
-    mkdir -p "$(dirname $2)"
-    $cp_f "$1" "$2"
-}
-
-# CONFIG_LIST contains configurable options, while HAVE_LIST is for
-# system-dependent things.
-
-COMPONENT_LIST="
-    bsfs
-    decoders
-    demuxers
-    encoders
-    filters
-    hwaccels
-    indevs
-    muxers
-    outdevs
-    parsers
-    protocols
-"
-
-EXAMPLE_LIST="
-    decoding_encoding_example
-    demuxing_decoding_example
-    filtering_audio_example
-    filtering_video_example
-    metadata_example
-    muxing_example
-    resampling_audio_example
-    scaling_video_example
-    transcode_aac_example
-"
-
-EXTERNAL_LIBRARY_LIST="
-    avisynth
-    bzlib
-    crystalhd
-    fontconfig
-    frei0r
-    gnutls
-    iconv
-    ladspa
-    libaacplus
-    libass
-    libbluray
-    libcaca
-    libcdio
-    libcelt
-    libdc1394
-    libfaac
-    libfdk_aac
-    libflite
-    libfreetype
-    libgme
-    libgsm
-    libiec61883
-    libilbc
-    libmodplug
-    libmp3lame
-    libnut
-    libopencore_amrnb
-    libopencore_amrwb
-    libopencv
-    libopenjpeg
-    libopus
-    libpulse
-    libquvi
-    librtmp
-    libschroedinger
-    libshine
-    libsoxr
-    libspeex
-    libssh
-    libstagefright_h264
-    libtheora
-    libtwolame
-    libutvideo
-    libv4l2
-    libvidstab
-    libvo_aacenc
-    libvo_amrwbenc
-    libvorbis
-    libvpx
-    libwavpack
-    libwebp
-    libx264
-    libxavs
-    libxvid
-    libzmq
-    libzvbi
-    openal
-    opencl
-    openssl
-    x11grab
-    zlib
-"
-
-DOCUMENT_LIST="
-    doc
-    htmlpages
-    manpages
-    podpages
-    txtpages
-"
-
-HWACCEL_LIST="
-    dxva2
-    vaapi
-    vda
-    vdpau
-    xvmc
-"
-
-LIBRARY_LIST="
-    avcodec
-    avdevice
-    avfilter
-    avformat
-    avresample
-    avutil
-    postproc
-    swresample
-    swscale
-"
-
-PROGRAM_LIST="
-    ffplay
-    ffprobe
-    ffserver
-    ffmpeg
-"
-
-CONFIG_LIST="
-    $COMPONENT_LIST
-    $DOCUMENT_LIST
-    $EXAMPLE_LIST
-    $EXTERNAL_LIBRARY_LIST
-    $HWACCEL_LIST
-    $LIBRARY_LIST
-    $PROGRAM_LIST
-    dct
-    dwt
-    error_resilience
-    fast_unaligned
-    fft
-    ftrapv
-    gpl
-    gray
-    hardcoded_tables
-    incompatible_libav_abi
-    incompatible_fork_abi
-    lsp
-    lzo
-    mdct
-    memalign_hack
-    memory_poisoning
-    network
-    nonfree
-    pic
-    raise_major
-    rdft
-    runtime_cpudetect
-    safe_bitstream_reader
-    shared
-    small
-    sram
-    static
-    swscale_alpha
-    thumb
-    version3
-    xmm_clobber_test
-"
-
-THREADS_LIST='
-    pthreads
-    w32threads
-    os2threads
-'
-
-ATOMICS_LIST='
-    atomics_gcc
-    atomics_suncc
-    atomics_win32
-'
-
-ARCH_LIST='
-    aarch64
-    alpha
-    arm
-    avr32
-    avr32_ap
-    avr32_uc
-    bfin
-    ia64
-    m68k
-    mips
-    mips64
-    parisc
-    ppc
-    ppc64
-    s390
-    sh4
-    sparc
-    sparc64
-    tilegx
-    tilepro
-    tomi
-    x86
-    x86_32
-    x86_64
-'
-
-ARCH_EXT_LIST_ARM='
-    armv5te
-    armv6
-    armv6t2
-    neon
-    vfp
-    vfpv3
-'
-
-ARCH_EXT_LIST_X86='
-    amd3dnow
-    amd3dnowext
-    avx
-    avx2
-    fma4
-    i686
-    mmx
-    mmxext
-    sse
-    sse2
-    sse3
-    sse4
-    sse42
-    ssse3
-'
-
-ARCH_EXT_LIST="
-    $ARCH_EXT_LIST_ARM
-    $ARCH_EXT_LIST_X86
-    altivec
-    ppc4xx
-    vis
-    mipsfpu
-    mips32r2
-    mipsdspr1
-    mipsdspr2
-"
-
-HAVE_LIST_CMDLINE='
-    inline_asm
-    symver
-    yasm
-'
-
-HAVE_LIST_PUB='
-    bigendian
-    fast_unaligned
-    incompatible_libav_abi
-    incompatible_fork_abi
-'
-
-MATH_FUNCS="
-    atanf
-    atan2f
-    cbrt
-    cbrtf
-    cosf
-    exp2
-    exp2f
-    expf
-    isinf
-    isnan
-    ldexpf
-    llrint
-    llrintf
-    log2
-    log2f
-    log10f
-    lrint
-    lrintf
-    powf
-    rint
-    round
-    roundf
-    sinf
-    trunc
-    truncf
-"
-
-HAVE_LIST="
-    $ARCH_EXT_LIST
-    $(add_suffix _external $ARCH_EXT_LIST)
-    $(add_suffix _inline   $ARCH_EXT_LIST)
-    $HAVE_LIST_CMDLINE
-    $HAVE_LIST_PUB
-    $THREADS_LIST
-    $ATOMICS_LIST
-    $MATH_FUNCS
-    access
-    aligned_malloc
-    aligned_stack
-    alsa_asoundlib_h
-    altivec_h
-    arpa_inet_h
-    asm_mod_q
-    asm_mod_y
-    asm_types_h
-    atomic_cas_ptr
-    atomics_native
-    attribute_may_alias
-    attribute_packed
-    cdio_paranoia_h
-    cdio_paranoia_paranoia_h
-    CL_cl_h
-    clock_gettime
-    closesocket
-    CommandLineToArgvW
-    cpunop
-    CryptGenRandom
-    dcbzl
-    dev_bktr_ioctl_bt848_h
-    dev_bktr_ioctl_meteor_h
-    dev_ic_bt8xx_h
-    dev_video_bktr_ioctl_bt848_h
-    dev_video_meteor_ioctl_meteor_h
-    direct_h
-    dlfcn_h
-    dlopen
-    dos_paths
-    dxva_h
-    ebp_available
-    ebx_available
-    fast_64bit
-    fast_clz
-    fast_cmov
-    fcntl
-    fork
-    getaddrinfo
-    gethrtime
-    getopt
-    GetProcessAffinityMask
-    GetProcessMemoryInfo
-    GetProcessTimes
-    GetSystemTimeAsFileTime
-    getrusage
-    getservbyport
-    gettimeofday
-    glob
-    gnu_as
-    gnu_windres
-    gsm_h
-    ibm_asm
-    inet_aton
-    io_h
-    inline_asm_labels
-    isatty
-    jack_port_get_latency_range
-    kbhit
-    ldbrx
-    libc_msvcrt
-    libdc1394_1
-    libdc1394_2
-    local_aligned_16
-    local_aligned_8
-    localtime_r
-    loongson
-    lzo1x_999_compress
-    machine_ioctl_bt848_h
-    machine_ioctl_meteor_h
-    machine_rw_barrier
-    makeinfo
-    malloc_h
-    MapViewOfFile
-    memalign
-    MemoryBarrier
-    mkstemp
-    mm_empty
-    mmap
-    mprotect
-    nanosleep
-    openjpeg_1_5_openjpeg_h
-    PeekNamedPipe
-    perl
-    pod2man
-    poll_h
-    posix_memalign
-    pragma_deprecated
-    pthread_cancel
-    rdtsc
-    rsync_contimeout
-    sarestart
-    sched_getaffinity
-    sdl
-    SetConsoleTextAttribute
-    setmode
-    setrlimit
-    Sleep
-    sndio_h
-    socklen_t
-    soundcard_h
-    strerror_r
-    struct_addrinfo
-    struct_group_source_req
-    struct_ip_mreq_source
-    struct_ipv6_mreq
-    struct_pollfd
-    struct_rusage_ru_maxrss
-    struct_sctp_event_subscribe
-    struct_sockaddr_in6
-    struct_sockaddr_sa_len
-    struct_sockaddr_storage
-    struct_stat_st_mtim_tv_nsec
-    struct_v4l2_frmivalenum_discrete
-    symver_asm_label
-    symver_gnu_asm
-    sync_val_compare_and_swap
-    sysconf
-    sysctl
-    sys_mman_h
-    sys_param_h
-    sys_resource_h
-    sys_select_h
-    sys_soundcard_h
-    sys_time_h
-    sys_un_h
-    sys_videoio_h
-    termios_h
-    texi2html
-    threads
-    unistd_h
-    usleep
-    vdpau_x11
-    vfp_args
-    VirtualAlloc
-    windows_h
-    winsock2_h
-    xform_asm
-    xlib
-    xmm_clobbers
-"
-
-# options emitted with CONFIG_ prefix but not available on the command line
-CONFIG_EXTRA="
-    aandcttables
-    ac3dsp
-    audio_frame_queue
-    dsputil
-    exif
-    frame_thread_encoder
-    gcrypt
-    golomb
-    gplv3
-    h263dsp
-    h264chroma
-    h264dsp
-    h264pred
-    h264qpel
-    hpeldsp
-    huffman
-    lgplv3
-    lpc
-    mpegaudio
-    mpegaudiodsp
-    mpegvideo
-    mpegvideoenc
-    nettle
-    rangecoder
-    riffdec
-    riffenc
-    rtpdec
-    rtpenc_chain
-    sinewin
-    videodsp
-    vp3dsp
-"
-
-CMDLINE_SELECT="
-    $ARCH_EXT_LIST
-    $CONFIG_LIST
-    $HAVE_LIST_CMDLINE
-    $THREADS_LIST
-    asm
-    cross_compile
-    debug
-    extra_warnings
-    logging
-    lto
-    optimizations
-    rpath
-    stripping
-"
-
-PATHS_LIST='
-    bindir
-    datadir
-    docdir
-    incdir
-    libdir
-    mandir
-    prefix
-    shlibdir
-'
-
-CMDLINE_SET="
-    $PATHS_LIST
-    ar
-    arch
-    as
-    assert_level
-    build_suffix
-    cc
-    cpu
-    cross_prefix
-    cxx
-    dep_cc
-    extra_version
-    host_cc
-    host_cflags
-    host_ld
-    host_ldflags
-    host_libs
-    host_os
-    install
-    ld
-    logfile
-    malloc_prefix
-    nm
-    optflags
-    pkg_config
-    progs_suffix
-    random_seed
-    samples
-    strip
-    sysinclude
-    sysroot
-    target_exec
-    target_os
-    target_path
-    target_samples
-    tempprefix
-    toolchain
-    valgrind
-    yasmexe
-"
-
-CMDLINE_APPEND="
-    extra_cflags
-    extra_cxxflags
-    host_cppflags
-"
-
-# code dependency declarations
-
-# architecture extensions
-
-armv5te_deps="arm"
-armv6_deps="arm"
-armv6t2_deps="arm"
-neon_deps="arm"
-vfp_deps="arm"
-vfpv3_deps="vfp"
-
-map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
-
-mipsfpu_deps="mips"
-mips32r2_deps="mips"
-mipsdspr1_deps="mips"
-mipsdspr2_deps="mips"
-
-altivec_deps="ppc"
-ppc4xx_deps="ppc"
-
-vis_deps="sparc"
-
-cpunop_deps="i686"
-x86_64_select="i686"
-x86_64_suggest="fast_cmov"
-
-amd3dnow_deps="mmx"
-amd3dnowext_deps="amd3dnow"
-mmx_deps="x86"
-mmxext_deps="mmx"
-sse_deps="mmxext"
-sse2_deps="sse"
-sse3_deps="sse2"
-ssse3_deps="sse3"
-sse4_deps="ssse3"
-sse42_deps="sse4"
-avx_deps="sse42"
-fma4_deps="avx"
-avx2_deps="avx"
-
-mmx_external_deps="yasm"
-mmx_inline_deps="inline_asm"
-mmx_suggest="mmx_external mmx_inline"
-
-for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
-    eval dep=\$${ext}_deps
-    eval ${ext}_external_deps='"${dep}_external"'
-    eval ${ext}_inline_deps='"${dep}_inline"'
-    eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
-done
-
-aligned_stack_if_any="ppc x86"
-fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
-fast_clz_if_any="alpha avr32 mips ppc x86"
-fast_unaligned_if_any="ppc x86"
-
-need_memalign="altivec neon sse"
-
-# system capabilities
-log2_deps="!libc_msvcrt"
-
-symver_if_any="symver_asm_label symver_gnu_asm"
-
-# threading support
-atomics_gcc_if="sync_val_compare_and_swap"
-atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
-atomics_win32_if="MemoryBarrier"
-atomics_native_if_any="$ATOMICS_LIST"
-threads_if_any="$THREADS_LIST"
-
-# subsystems
-dct_select="rdft"
-error_resilience_select="dsputil"
-frame_thread_encoder_deps="encoders threads"
-lpc_select="dsputil"
-mdct_select="fft"
-rdft_select="fft"
-mpegaudio_select="mpegaudiodsp"
-mpegaudiodsp_select="dct"
-mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
-mpegvideoenc_select="mpegvideo"
-
-# decoders / encoders
-aac_decoder_select="mdct sinewin"
-aac_encoder_select="audio_frame_queue mdct sinewin"
-aac_latm_decoder_select="aac_decoder aac_latm_parser"
-ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
-ac3_encoder_select="mdct ac3dsp dsputil"
-ac3_fixed_encoder_select="mdct ac3dsp dsputil"
-aic_decoder_select="dsputil golomb"
-alac_encoder_select="lpc"
-als_decoder_select="dsputil"
-amrnb_decoder_select="lsp"
-amrwb_decoder_select="lsp"
-amv_decoder_select="dsputil hpeldsp exif"
-amv_encoder_select="aandcttables"
-ape_decoder_select="dsputil"
-asv1_decoder_select="dsputil"
-asv1_encoder_select="dsputil"
-asv2_decoder_select="dsputil"
-asv2_encoder_select="dsputil"
-atrac1_decoder_select="mdct sinewin"
-atrac3_decoder_select="mdct"
-avrn_decoder_select="exif"
-bink_decoder_select="dsputil hpeldsp"
-binkaudio_dct_decoder_select="mdct rdft dct sinewin"
-binkaudio_rdft_decoder_select="mdct rdft sinewin"
-cavs_decoder_select="dsputil golomb h264chroma videodsp"
-cllc_decoder_select="dsputil"
-comfortnoise_encoder_select="lpc"
-cook_decoder_select="dsputil mdct sinewin"
-cscd_decoder_select="lzo"
-cscd_decoder_suggest="zlib"
-dca_decoder_select="mdct"
-dirac_decoder_select="dsputil dwt golomb videodsp"
-dnxhd_decoder_select="dsputil"
-dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
-dvvideo_decoder_select="dsputil"
-dvvideo_encoder_select="dsputil"
-dxa_decoder_select="zlib"
-eac3_decoder_select="ac3_decoder"
-eac3_encoder_select="ac3_encoder"
-eamad_decoder_select="aandcttables dsputil mpegvideo"
-eatgq_decoder_select="aandcttables"
-eatqi_decoder_select="aandcttables error_resilience mpegvideo"
-exr_decoder_select="zlib"
-ffv1_decoder_select="dsputil golomb rangecoder"
-ffv1_encoder_select="dsputil rangecoder"
-ffvhuff_decoder_select="dsputil"
-ffvhuff_encoder_select="dsputil huffman"
-flac_decoder_select="golomb"
-flac_encoder_select="dsputil golomb lpc"
-flashsv_decoder_select="zlib"
-flashsv_encoder_select="zlib"
-flashsv2_encoder_select="zlib"
-flashsv2_decoder_select="zlib"
-flv_decoder_select="h263_decoder"
-flv_encoder_select="h263_encoder"
-fourxm_decoder_select="dsputil"
-fraps_decoder_select="dsputil huffman"
-g2m_decoder_select="dsputil zlib"
-g729_decoder_select="dsputil"
-h261_decoder_select="error_resilience mpegvideo"
-h261_encoder_select="aandcttables mpegvideoenc"
-h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
-h263_encoder_select="aandcttables h263dsp mpegvideoenc"
-h263i_decoder_select="h263_decoder"
-h263p_encoder_select="h263_encoder"
-h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
-h264_decoder_suggest="error_resilience"
-hevc_decoder_select="dsputil golomb videodsp"
-huffyuv_decoder_select="dsputil"
-huffyuv_encoder_select="dsputil huffman"
-iac_decoder_select="dsputil fft mdct sinewin"
-imc_decoder_select="dsputil fft mdct sinewin"
-indeo3_decoder_select="hpeldsp"
-interplay_video_decoder_select="hpeldsp"
-jpegls_decoder_select="dsputil golomb hpeldsp exif"
-jpegls_encoder_select="golomb"
-jv_decoder_select="dsputil"
-lagarith_decoder_select="dsputil"
-ljpeg_encoder_select="aandcttables mpegvideoenc"
-loco_decoder_select="golomb"
-mdec_decoder_select="dsputil error_resilience mpegvideo"
-metasound_decoder_select="lsp mdct sinewin"
-mimic_decoder_select="dsputil hpeldsp"
-mjpeg_decoder_select="dsputil hpeldsp exif"
-mjpegb_decoder_select="dsputil hpeldsp exif"
-mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
-mlp_decoder_select="dsputil mlp_parser"
-motionpixels_decoder_select="dsputil"
-mp1_decoder_select="mpegaudio"
-mp1float_decoder_select="mpegaudio"
-mp2_decoder_select="mpegaudio"
-mp2float_decoder_select="mpegaudio"
-mp3_decoder_select="mpegaudio"
-mp3adu_decoder_select="mpegaudio"
-mp3adufloat_decoder_select="mpegaudio"
-mp3float_decoder_select="mpegaudio"
-mp3on4_decoder_select="mpegaudio"
-mp3on4float_decoder_select="mpegaudio"
-mpc7_decoder_select="dsputil mpegaudiodsp"
-mpc8_decoder_select="dsputil mpegaudiodsp"
-mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
-mpeg_xvmc_decoder_select="mpeg2video_decoder"
-mpeg1video_decoder_select="error_resilience mpegvideo"
-mpeg1video_encoder_select="aandcttables mpegvideoenc"
-mpeg2video_decoder_select="error_resilience mpegvideo"
-mpeg2video_encoder_select="aandcttables mpegvideoenc"
-mpeg4_decoder_select="h263_decoder mpeg4video_parser"
-mpeg4_encoder_select="h263_encoder"
-msmpeg4v1_decoder_select="h263_decoder"
-msmpeg4v2_decoder_select="h263_decoder"
-msmpeg4v2_encoder_select="h263_encoder"
-msmpeg4v3_decoder_select="h263_decoder"
-msmpeg4v3_encoder_select="h263_encoder"
-mss2_decoder_select="error_resilience vc1_decoder"
-mxpeg_decoder_select="dsputil hpeldsp exif"
-nellymoser_decoder_select="mdct sinewin"
-nellymoser_encoder_select="audio_frame_queue mdct sinewin"
-nuv_decoder_select="dsputil lzo"
-png_decoder_select="zlib"
-png_encoder_select="dsputil zlib"
-prores_decoder_select="dsputil"
-prores_encoder_select="dsputil"
-qcelp_decoder_select="lsp"
-qdm2_decoder_select="mdct rdft mpegaudiodsp"
-ra_144_encoder_select="audio_frame_queue lpc"
-ralf_decoder_select="golomb"
-rtjpeg_decoder_select="dsputil"
-rv10_decoder_select="error_resilience h263_decoder h263dsp"
-rv10_encoder_select="h263_encoder"
-rv20_decoder_select="error_resilience h263_decoder h263dsp"
-rv20_encoder_select="h263_encoder"
-rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
-rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
-shorten_decoder_select="golomb"
-sipr_decoder_select="lsp"
-snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
-snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
-sonic_decoder_select="golomb"
-sonic_encoder_select="golomb"
-sonic_ls_encoder_select="golomb"
-sp5x_decoder_select="dsputil hpeldsp exif"
-svq1_decoder_select="hpeldsp"
-svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
-svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
-svq3_decoder_suggest="error_resilience zlib"
-tak_decoder_select="dsputil"
-theora_decoder_select="vp3_decoder"
-tiff_decoder_suggest="zlib"
-tiff_encoder_suggest="zlib"
-thp_decoder_select="dsputil hpeldsp exif"
-truehd_decoder_select="mlp_parser"
-truemotion2_decoder_select="dsputil"
-truespeech_decoder_select="dsputil"
-tscc_decoder_select="zlib"
-twinvq_decoder_select="mdct lsp sinewin"
-utvideo_decoder_select="dsputil"
-utvideo_encoder_select="dsputil huffman"
-vble_decoder_select="dsputil"
-vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
-vc1image_decoder_select="vc1_decoder"
-vorbis_decoder_select="mdct"
-vorbis_encoder_select="mdct"
-vp3_decoder_select="hpeldsp vp3dsp videodsp"
-vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
-vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
-vp6a_decoder_select="vp6_decoder"
-vp6f_decoder_select="vp6_decoder"
-vp8_decoder_select="h264pred videodsp"
-vp9_decoder_select="videodsp"
-webp_decoder_select="vp8_decoder"
-wmapro_decoder_select="mdct sinewin"
-wmav1_decoder_select="mdct sinewin"
-wmav1_encoder_select="mdct sinewin"
-wmav2_decoder_select="mdct sinewin"
-wmav2_encoder_select="mdct sinewin"
-wmavoice_decoder_select="lsp rdft dct mdct sinewin"
-wmv1_decoder_select="h263_decoder"
-wmv1_encoder_select="h263_encoder"
-wmv2_decoder_select="h263_decoder videodsp"
-wmv2_encoder_select="h263_encoder"
-wmv3_decoder_select="vc1_decoder"
-wmv3image_decoder_select="wmv3_decoder"
-zerocodec_decoder_select="zlib"
-zlib_decoder_select="zlib"
-zlib_encoder_select="zlib"
-zmbv_decoder_select="zlib"
-zmbv_encoder_select="zlib"
-
-# hardware accelerators
-crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
-dxva2_deps="dxva2api_h"
-vaapi_deps="va_va_h"
-vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
-vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
-vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
-xvmc_deps="X11_extensions_XvMClib_h"
-
-h263_vaapi_hwaccel_deps="vaapi"
-h263_vaapi_hwaccel_select="h263_decoder"
-h263_vdpau_hwaccel_deps="vdpau"
-h263_vdpau_hwaccel_select="h263_decoder"
-h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
-h264_dxva2_hwaccel_deps="dxva2"
-h264_dxva2_hwaccel_select="h264_decoder"
-h264_vaapi_hwaccel_deps="vaapi"
-h264_vaapi_hwaccel_select="h264_decoder"
-h264_vda_decoder_deps="vda"
-h264_vda_decoder_select="h264_decoder"
-h264_vda_hwaccel_deps="vda"
-h264_vda_hwaccel_select="h264_decoder"
-h264_vdpau_decoder_deps="vdpau"
-h264_vdpau_decoder_select="h264_decoder"
-h264_vdpau_hwaccel_deps="vdpau"
-h264_vdpau_hwaccel_select="h264_decoder"
-mpeg_vdpau_decoder_deps="vdpau"
-mpeg_vdpau_decoder_select="mpeg2video_decoder"
-mpeg_xvmc_hwaccel_deps="xvmc"
-mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
-mpeg1_vdpau_decoder_deps="vdpau"
-mpeg1_vdpau_decoder_select="mpeg1video_decoder"
-mpeg1_vdpau_hwaccel_deps="vdpau"
-mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
-mpeg1_xvmc_hwaccel_deps="xvmc"
-mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
-mpeg2_crystalhd_decoder_select="crystalhd"
-mpeg2_dxva2_hwaccel_deps="dxva2"
-mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
-mpeg2_vaapi_hwaccel_deps="vaapi"
-mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
-mpeg2_vdpau_hwaccel_deps="vdpau"
-mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
-mpeg2_xvmc_hwaccel_deps="xvmc"
-mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
-mpeg4_crystalhd_decoder_select="crystalhd"
-mpeg4_vaapi_hwaccel_deps="vaapi"
-mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
-mpeg4_vdpau_decoder_deps="vdpau"
-mpeg4_vdpau_decoder_select="mpeg4_decoder"
-mpeg4_vdpau_hwaccel_deps="vdpau"
-mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
-msmpeg4_crystalhd_decoder_select="crystalhd"
-vc1_crystalhd_decoder_select="crystalhd"
-vc1_dxva2_hwaccel_deps="dxva2"
-vc1_dxva2_hwaccel_select="vc1_decoder"
-vc1_vaapi_hwaccel_deps="vaapi"
-vc1_vaapi_hwaccel_select="vc1_decoder"
-vc1_vdpau_decoder_deps="vdpau"
-vc1_vdpau_decoder_select="vc1_decoder"
-vc1_vdpau_hwaccel_deps="vdpau"
-vc1_vdpau_hwaccel_select="vc1_decoder"
-wmv3_crystalhd_decoder_select="crystalhd"
-wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
-wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
-wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
-wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
-
-# parsers
-h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
-hevc_parser_select="hevc_decoder"
-mpeg4video_parser_select="error_resilience mpegvideo"
-mpegvideo_parser_select="error_resilience mpegvideo"
-vc1_parser_select="mpegvideo"
-
-# external libraries
-libaacplus_encoder_deps="libaacplus"
-libcelt_decoder_deps="libcelt"
-libfaac_encoder_deps="libfaac"
-libfaac_encoder_select="audio_frame_queue"
-libfdk_aac_decoder_deps="libfdk_aac"
-libfdk_aac_encoder_deps="libfdk_aac"
-libfdk_aac_encoder_select="audio_frame_queue"
-libgme_demuxer_deps="libgme"
-libgsm_decoder_deps="libgsm"
-libgsm_encoder_deps="libgsm"
-libgsm_ms_decoder_deps="libgsm"
-libgsm_ms_encoder_deps="libgsm"
-libilbc_decoder_deps="libilbc"
-libilbc_encoder_deps="libilbc"
-libmodplug_demuxer_deps="libmodplug"
-libmp3lame_encoder_deps="libmp3lame"
-libmp3lame_encoder_select="audio_frame_queue"
-libopencore_amrnb_decoder_deps="libopencore_amrnb"
-libopencore_amrnb_encoder_deps="libopencore_amrnb"
-libopencore_amrnb_encoder_select="audio_frame_queue"
-libopencore_amrwb_decoder_deps="libopencore_amrwb"
-libopenjpeg_decoder_deps="libopenjpeg"
-libopenjpeg_encoder_deps="libopenjpeg"
-libopus_decoder_deps="libopus"
-libopus_encoder_deps="libopus"
-libopus_encoder_select="audio_frame_queue"
-libquvi_demuxer_deps="libquvi"
-libschroedinger_decoder_deps="libschroedinger"
-libschroedinger_encoder_deps="libschroedinger"
-libshine_encoder_deps="libshine"
-libshine_encoder_select="audio_frame_queue"
-libspeex_decoder_deps="libspeex"
-libspeex_encoder_deps="libspeex"
-libspeex_encoder_select="audio_frame_queue"
-libstagefright_h264_decoder_deps="libstagefright_h264"
-libtheora_encoder_deps="libtheora"
-libtwolame_encoder_deps="libtwolame"
-libvo_aacenc_encoder_deps="libvo_aacenc"
-libvo_aacenc_encoder_select="audio_frame_queue"
-libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
-libvorbis_decoder_deps="libvorbis"
-libvorbis_encoder_deps="libvorbis"
-libvorbis_encoder_select="audio_frame_queue"
-libvpx_vp8_decoder_deps="libvpx"
-libvpx_vp8_encoder_deps="libvpx"
-libvpx_vp9_decoder_deps="libvpx"
-libvpx_vp9_encoder_deps="libvpx"
-libwavpack_encoder_deps="libwavpack"
-libwebp_encoder_deps="libwebp"
-libx264_encoder_deps="libx264"
-libx264rgb_encoder_deps="libx264"
-libxavs_encoder_deps="libxavs"
-libxvid_encoder_deps="libxvid"
-libutvideo_decoder_deps="libutvideo"
-libutvideo_encoder_deps="libutvideo"
-libzvbi_teletext_decoder_deps="libzvbi"
-
-# demuxers / muxers
-ac3_demuxer_select="ac3_parser"
-asf_demuxer_select="riffdec"
-asf_muxer_select="riffenc"
-asf_stream_muxer_select="asf_muxer"
-avi_demuxer_select="riffdec"
-avi_muxer_select="riffenc"
-avisynth_demuxer_deps="avisynth"
-avisynth_demuxer_select="riffdec"
-caf_demuxer_select="riffdec"
-dirac_demuxer_select="dirac_parser"
-dts_demuxer_select="dca_parser"
-dtshd_demuxer_select="dca_parser"
-dxa_demuxer_select="riffdec"
-eac3_demuxer_select="ac3_parser"
-f4v_muxer_select="mov_muxer"
-flac_demuxer_select="flac_parser"
-hds_muxer_select="flv_muxer"
-hls_muxer_select="mpegts_muxer"
-ipod_muxer_select="mov_muxer"
-ismv_muxer_select="mov_muxer"
-libnut_demuxer_deps="libnut"
-libnut_muxer_deps="libnut"
-matroska_audio_muxer_select="matroska_muxer"
-matroska_demuxer_select="riffdec"
-matroska_demuxer_suggest="bzlib lzo zlib"
-matroska_muxer_select="riffenc"
-mmf_muxer_select="riffenc"
-mov_demuxer_select="riffdec"
-mov_demuxer_suggest="zlib"
-mov_muxer_select="riffenc rtpenc_chain"
-mp3_demuxer_select="mpegaudio_parser"
-mp4_muxer_select="mov_muxer"
-mpegts_muxer_select="adts_muxer latm_muxer"
-mpegtsraw_demuxer_select="mpegts_demuxer"
-mxf_d10_muxer_select="mxf_muxer"
-nut_muxer_select="riffenc"
-nuv_demuxer_select="riffdec"
-ogg_demuxer_select="golomb"
-psp_muxer_select="mov_muxer"
-rtp_demuxer_select="sdp_demuxer"
-rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
-rtsp_demuxer_select="http_protocol rtpdec"
-rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
-sap_demuxer_select="sdp_demuxer"
-sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
-sdp_demuxer_select="rtpdec"
-smoothstreaming_muxer_select="ismv_muxer"
-spdif_muxer_select="aac_parser"
-tak_demuxer_select="tak_parser"
-tg2_muxer_select="mov_muxer"
-tgp_muxer_select="mov_muxer"
-vobsub_demuxer_select="mpegps_demuxer"
-w64_demuxer_select="wav_demuxer"
-w64_muxer_select="wav_muxer"
-wav_demuxer_select="riffdec"
-wav_muxer_select="riffenc"
-webm_muxer_select="riffenc"
-wtv_demuxer_select="riffdec"
-xmv_demuxer_select="riffdec"
-xwma_demuxer_select="riffdec"
-
-# indevs / outdevs
-alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
-alsa_outdev_deps="alsa_asoundlib_h"
-bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
-caca_outdev_deps="libcaca"
-dshow_indev_deps="IBaseFilter"
-dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
-dv1394_indev_deps="dv1394"
-dv1394_indev_select="dv_demuxer"
-fbdev_indev_deps="linux_fb_h"
-fbdev_outdev_deps="linux_fb_h"
-iec61883_indev_deps="libiec61883"
-jack_indev_deps="jack_jack_h sem_timedwait"
-lavfi_indev_deps="avfilter"
-libcdio_indev_deps="libcdio"
-libdc1394_indev_deps="libdc1394"
-libv4l2_indev_deps="libv4l2"
-openal_indev_deps="openal"
-oss_indev_deps_any="soundcard_h sys_soundcard_h"
-oss_outdev_deps_any="soundcard_h sys_soundcard_h"
-pulse_indev_deps="libpulse"
-pulse_outdev_deps="libpulse"
-sdl_outdev_deps="sdl"
-sndio_indev_deps="sndio_h"
-sndio_outdev_deps="sndio_h"
-v4l_indev_deps="linux_videodev_h"
-v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
-v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
-vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
-vfwcap_indev_extralibs="-lavicap32"
-xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
-xv_outdev_extralibs="-lXv -lX11 -lXext"
-x11grab_indev_deps="x11grab"
-
-# protocols
-bluray_protocol_deps="libbluray"
-ffrtmpcrypt_protocol_deps="!librtmp_protocol"
-ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
-ffrtmpcrypt_protocol_select="tcp_protocol"
-ffrtmphttp_protocol_deps="!librtmp_protocol"
-ffrtmphttp_protocol_select="http_protocol"
-ftp_protocol_select="tcp_protocol"
-gopher_protocol_select="network"
-httpproxy_protocol_select="tcp_protocol"
-http_protocol_select="tcp_protocol"
-https_protocol_select="tls_protocol"
-librtmp_protocol_deps="librtmp"
-librtmpe_protocol_deps="librtmp"
-librtmps_protocol_deps="librtmp"
-librtmpt_protocol_deps="librtmp"
-librtmpte_protocol_deps="librtmp"
-libssh_protocol_deps="libssh"
-mmsh_protocol_select="http_protocol"
-mmst_protocol_select="network"
-rtmp_protocol_deps="!librtmp_protocol"
-rtmp_protocol_select="tcp_protocol"
-rtmpe_protocol_select="ffrtmpcrypt_protocol"
-rtmps_protocol_deps="!librtmp_protocol"
-rtmps_protocol_select="tls_protocol"
-rtmpt_protocol_select="ffrtmphttp_protocol"
-rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
-rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
-rtp_protocol_select="udp_protocol"
-sctp_protocol_deps="struct_sctp_event_subscribe"
-sctp_protocol_select="network"
-srtp_protocol_select="rtp_protocol"
-tcp_protocol_select="network"
-tls_protocol_deps_any="openssl gnutls"
-tls_protocol_select="tcp_protocol"
-udp_protocol_select="network"
-unix_protocol_deps="sys_un_h"
-unix_protocol_select="network"
-
-# filters
-aconvert_filter_deps="swresample"
-amovie_filter_deps="avcodec avformat"
-aresample_filter_deps="swresample"
-ass_filter_deps="libass"
-asyncts_filter_deps="avresample"
-atempo_filter_deps="avcodec"
-atempo_filter_select="rdft"
-azmq_filter_deps="libzmq"
-blackframe_filter_deps="gpl"
-boxblur_filter_deps="gpl"
-colormatrix_filter_deps="gpl"
-cropdetect_filter_deps="gpl"
-dctdnoiz_filter_deps="avcodec"
-dctdnoiz_filter_select="fft"
-delogo_filter_deps="gpl"
-deshake_filter_deps="avcodec"
-deshake_filter_select="dsputil"
-drawtext_filter_deps="libfreetype"
-ebur128_filter_deps="gpl"
-flite_filter_deps="libflite"
-frei0r_filter_deps="frei0r dlopen"
-frei0r_filter_extralibs='$ldl'
-frei0r_src_filter_deps="frei0r dlopen"
-frei0r_src_filter_extralibs='$ldl'
-geq_filter_deps="gpl"
-histeq_filter_deps="gpl"
-hqdn3d_filter_deps="gpl"
-interlace_filter_deps="gpl"
-kerndeint_filter_deps="gpl"
-ladspa_filter_deps="ladspa dlopen"
-mcdeint_filter_deps="avcodec gpl"
-movie_filter_deps="avcodec avformat"
-mp_filter_deps="gpl avcodec swscale inline_asm"
-mpdecimate_filter_deps="gpl avcodec"
-mptestsrc_filter_deps="gpl"
-negate_filter_deps="lut_filter"
-perspective_filter_deps="gpl"
-resample_filter_deps="avresample"
-ocv_filter_deps="libopencv"
-owdenoise_filter_deps="gpl"
-pan_filter_deps="swresample"
-phase_filter_deps="gpl"
-pp_filter_deps="gpl postproc"
-pullup_filter_deps="gpl"
-removelogo_filter_deps="avcodec avformat swscale"
-sab_filter_deps="gpl swscale"
-scale_filter_deps="swscale"
-smartblur_filter_deps="gpl swscale"
-showspectrum_filter_deps="avcodec"
-showspectrum_filter_select="rdft"
-spp_filter_deps="gpl avcodec"
-spp_filter_select="fft"
-stereo3d_filter_deps="gpl"
-subtitles_filter_deps="avformat avcodec libass"
-super2xsai_filter_deps="gpl"
-tinterlace_filter_deps="gpl"
-vidstabdetect_filter_deps="libvidstab"
-vidstabtransform_filter_deps="libvidstab"
-yadif_filter_deps="gpl"
-pixfmts_super2xsai_test_deps="super2xsai_filter"
-tinterlace_merge_test_deps="tinterlace_filter"
-tinterlace_pad_test_deps="tinterlace_filter"
-zmq_filter_deps="libzmq"
-
-# examples
-decoding_encoding_example_deps="avcodec avutil"
-demuxing_decoding_example_deps="avcodec avformat avutil"
-filtering_audio_example_deps="avfilter avcodec avformat avutil"
-filtering_video_example_deps="avfilter avcodec avformat avutil"
-metadata_example_deps="avformat avutil"
-muxing_example_deps="avcodec avformat avutil swscale"
-resampling_audio_example_deps="avutil swresample"
-scaling_video_example_deps="avutil swscale"
-transcode_aac_example_deps="avcodec avformat swresample"
-
-# libraries
-avcodec_deps="avutil"
-avdevice_deps="avutil avcodec avformat"
-avfilter_deps="avutil"
-avformat_deps="avutil avcodec"
-avresample_deps="avutil"
-postproc_deps="avutil gpl"
-swscale_deps="avutil"
-
-# programs
-ffmpeg_deps="avcodec avfilter avformat swresample"
-ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
-               null_filter
-               setpts_filter trim_filter"
-ffplay_deps="avcodec avformat swscale swresample sdl"
-ffplay_select="rdft crop_filter"
-ffprobe_deps="avcodec avformat"
-ffserver_deps="avformat fork sarestart"
-ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
-ffserver_extralibs='$ldl'
-
-# documentation
-podpages_deps="perl"
-manpages_deps="perl pod2man"
-htmlpages_deps="perl texi2html"
-txtpages_deps="perl makeinfo"
-doc_deps_any="manpages htmlpages podpages txtpages"
-
-# default parameters
-
-logfile="config.log"
-
-# installation paths
-prefix_default="/usr/local"
-bindir_default='${prefix}/bin'
-datadir_default='${prefix}/share/ffmpeg'
-docdir_default='${prefix}/share/doc/ffmpeg'
-incdir_default='${prefix}/include'
-libdir_default='${prefix}/lib'
-mandir_default='${prefix}/share/man'
-shlibdir_default="$libdir_default"
-
-# toolchain
-ar_default="ar"
-cc_default="gcc"
-cxx_default="g++"
-host_cc_default="gcc"
-cp_f="cp -f"
-install="install"
-ln_s="ln -s -f"
-nm_default="nm -g"
-objformat="elf"
-pkg_config_default=pkg-config
-ranlib="ranlib"
-strip_default="strip"
-yasmexe_default="yasm"
-windres_default="windres"
-
-nogas=":"
-
-# machine
-arch_default=$(uname -m)
-cpu="generic"
-
-# OS
-target_os_default=$(tolower $(uname -s))
-host_os=$target_os_default
-
-# configurable options
-enable $PROGRAM_LIST
-enable $DOCUMENT_LIST
-enable $EXAMPLE_LIST
-enable $(filter_out avresample $LIBRARY_LIST)
-enable stripping
-
-enable asm
-enable debug
-enable doc
-enable optimizations
-enable runtime_cpudetect
-enable safe_bitstream_reader
-enable static
-enable swscale_alpha
-
-# Enable hwaccels by default.
-enable dxva2 vaapi vdpau xvmc
-
-# build settings
-SHFLAGS='-shared -Wl,-soname,$$(@F)'
-LIBPREF="lib"
-LIBSUF=".a"
-FULLNAME='$(NAME)$(BUILDSUF)'
-LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
-SLIBPREF="lib"
-SLIBSUF=".so"
-SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
-SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
-SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
-LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
-SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
-SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
-
-asflags_filter=echo
-cflags_filter=echo
-ldflags_filter=echo
-
-AS_C='-c'
-AS_O='-o $@'
-CC_C='-c'
-CC_E='-E -o $@'
-CC_O='-o $@'
-CXX_C='-c'
-CXX_O='-o $@'
-LD_O='-o $@'
-LD_LIB='-l%'
-LD_PATH='-L'
-HOSTCC_C='-c'
-HOSTCC_E='-E -o $@'
-HOSTCC_O='-o $@'
-HOSTLD_O='-o $@'
-
-host_cflags='-O3'
-host_cppflags='-D_ISOC99_SOURCE'
-host_libs='-lm'
-host_cflags_filter=echo
-host_ldflags_filter=echo
-
-target_path='$(CURDIR)'
-
-# since the object filename is not given with the -MM flag, the compiler
-# is only able to print the basename, and we must add the path ourselves
-DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
-DEPFLAGS='-MM'
-
-# find source path
-if test -f configure; then
-    source_path=.
-else
-    source_path=$(cd $(dirname "$0"); pwd)
-    echo "$source_path" | grep -q '[[:blank:]]' &&
-        die "Out of tree builds are impossible with whitespace in source path."
-    test -e "$source_path/config.h" &&
-        die "Out of tree builds are impossible with config.h in source dir."
-fi
-
-for v in "$@"; do
-    r=${v#*=}
-    l=${v%"$r"}
-    r=$(sh_quote "$r")
-    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
-done
-
-find_things(){
-    thing=$1
-    pattern=$2
-    file=$source_path/$3
-    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
-}
-
-ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
-DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
-HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
-PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
-BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
-MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
-DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
-OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
-INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
-PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
-FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
-
-ALL_COMPONENTS="
-    $BSF_LIST
-    $DECODER_LIST
-    $DEMUXER_LIST
-    $ENCODER_LIST
-    $FILTER_LIST
-    $HWACCEL_LIST
-    $INDEV_LIST
-    $MUXER_LIST
-    $OUTDEV_LIST
-    $PARSER_LIST
-    $PROTOCOL_LIST
-"
-
-for n in $COMPONENT_LIST; do
-    v=$(toupper ${n%s})_LIST
-    eval enable \$$v
-    eval ${n}_if_any="\$$v"
-done
-
-enable $ARCH_EXT_LIST
-
-die_unknown(){
-    echo "Unknown option \"$1\"."
-    echo "See $0 --help for available options."
-    exit 1
-}
-
-print_3_columns() {
-    cat | tr ' ' '\n' | sort | pr -r -3 -t
-}
-
-show_list() {
-    suffix=_$1
-    shift
-    echo $* | sed s/$suffix//g | print_3_columns
-    exit 0
-}
-
-rand_list(){
-    IFS=', '
-    set -- $*
-    unset IFS
-    for thing; do
-        comp=${thing%:*}
-        prob=${thing#$comp}
-        prob=${prob#:}
-        is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
-        echo "prob ${prob:-0.5}"
-        printf '%s\n' $comp
-    done
-}
-
-do_random(){
-    action=$1
-    shift
-    random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
-    $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
-}
-
-for opt do
-    optval="${opt#*=}"
-    case "$opt" in
-        --extra-ldflags=*)
-            add_ldflags $optval
-        ;;
-        --extra-libs=*)
-            add_extralibs $optval
-        ;;
-        --disable-devices)
-            disable $INDEV_LIST $OUTDEV_LIST
-        ;;
-        --enable-debug=*)
-            debuglevel="$optval"
-        ;;
-        --disable-programs)
-            disable $PROGRAM_LIST
-        ;;
-        --disable-everything)
-            map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
-        ;;
-        --disable-all)
-            map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
-            disable $LIBRARY_LIST $PROGRAM_LIST doc
-        ;;
-        --enable-random|--disable-random)
-            action=${opt%%-random}
-            do_random ${action#--} $COMPONENT_LIST
-        ;;
-        --enable-random=*|--disable-random=*)
-            action=${opt%%-random=*}
-            do_random ${action#--} $optval
-        ;;
-        --enable-*=*|--disable-*=*)
-            eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
-            is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
-            eval list=\$$(toupper $thing)_LIST
-            name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
-            list=$(filter "$name" $list)
-            [ "$list" = "" ] && warn "Option $opt did not match anything"
-            $action $list
-        ;;
-        --enable-?*|--disable-?*)
-            eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
-            if is_in $option $COMPONENT_LIST; then
-                test $action = disable && action=unset
-                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 $NAME)_LIST
-        ;;
-        --help|-h) show_help
-        ;;
-        --fatal-warnings) enable fatal_warnings
-        ;;
-        *)
-            optname="${opt%%=*}"
-            optname="${optname#--}"
-            optname=$(echo "$optname" | sed 's/-/_/g')
-            if is_in $optname $CMDLINE_SET; then
-                eval $optname='$optval'
-            elif is_in $optname $CMDLINE_APPEND; then
-                append $optname "$optval"
-            else
-                die_unknown $opt
-            fi
-        ;;
-    esac
-done
-
-disabled logging && logfile=/dev/null
-
-echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
-set >> $logfile
-
-test -n "$cross_prefix" && enable cross_compile
-
-if enabled cross_compile; then
-    test -n "$arch" && test -n "$target_os" ||
-        die "Must specify target arch and OS when cross-compiling"
-fi
-
-ar_default="${cross_prefix}${ar_default}"
-cc_default="${cross_prefix}${cc_default}"
-cxx_default="${cross_prefix}${cxx_default}"
-nm_default="${cross_prefix}${nm_default}"
-pkg_config_default="${cross_prefix}${pkg_config_default}"
-ranlib="${cross_prefix}${ranlib}"
-strip_default="${cross_prefix}${strip_default}"
-windres_default="${cross_prefix}${windres_default}"
-
-sysinclude_default="${sysroot}/usr/include"
-
-test -n "$valgrind" && toolchain="valgrind-memcheck"
-
-case "$toolchain" in
-    clang-asan)
-        cc_default="clang"
-        add_cflags  -fsanitize=address
-        add_ldflags -fsanitize=address
-    ;;
-    clang-tsan)
-        cc_default="clang"
-        add_cflags  -fsanitize=thread -pie
-        add_ldflags -fsanitize=thread -pie
-    ;;
-    gcc-asan)
-        cc_default="gcc"
-        add_cflags  -fsanitize=address
-        add_ldflags -fsanitize=address
-    ;;
-    gcc-tsan)
-        cc_default="gcc"
-        add_cflags  -fsanitize=thread -pie -fPIC
-        add_ldflags -fsanitize=thread -pie -fPIC
-    ;;
-    valgrind-massif)
-        target_exec_default=${valgrind:-"valgrind"}
-        target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
-    ;;
-    valgrind-memcheck)
-        target_exec_default=${valgrind:-"valgrind"}
-        target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
-    ;;
-    msvc)
-        # Check whether the current MSVC version needs the C99 converter.
-        # From MSVC 2013 (compiler major version 18) onwards, it does actually
-        # support enough of C99 to build ffmpeg. Default to the new
-        # behaviour if the regexp was unable to match anything, since this
-        # successfully parses the version number of existing supported
-        # versions that require the converter (MSVC 2010 and 2012).
-        cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
-        if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
-            cc_default="cl"
-        else
-            cc_default="c99wrap cl"
-        fi
-        ld_default="link"
-        nm_default="dumpbin -symbols"
-        ar_default="lib"
-        target_os_default="win32"
-        # Use a relative path for TMPDIR. This makes sure all the
-        # ffconf temp files are written with a relative path, avoiding
-        # issues with msys/win32 path conversion for MSVC parameters
-        # such as -Fo<file> or -out:<file>.
-        TMPDIR=.
-    ;;
-    icl)
-        cc_default="icl"
-        ld_default="xilink"
-        nm_default="dumpbin -symbols"
-        ar_default="xilib"
-        target_os_default="win32"
-        TMPDIR=.
-    ;;
-    gcov)
-        add_cflags  -fprofile-arcs -ftest-coverage
-        add_ldflags -fprofile-arcs -ftest-coverage
-    ;;
-    hardened)
-        add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
-        add_ldflags -Wl,-z,relro -Wl,-z,now
-    ;;
-    ?*)
-        die "Unknown toolchain $toolchain"
-    ;;
-esac
-
-set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
-enabled cross_compile || host_cc_default=$cc
-set_default host_cc
-
-if ! $pkg_config --version >/dev/null 2>&1; then
-    warn "$pkg_config not found, library detection may fail."
-    pkg_config=false
-fi
-
-exesuf() {
-    case $1 in
-        mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
-    esac
-}
-
-EXESUF=$(exesuf $target_os)
-HOSTEXESUF=$(exesuf $host_os)
-
-# set temporary file name
-: ${TMPDIR:=$TEMPDIR}
-: ${TMPDIR:=$TMP}
-: ${TMPDIR:=/tmp}
-
-if [ -n "$tempprefix" ] ; then
-    mktemp(){
-        echo $tempprefix.${HOSTNAME}.${UID}
-    }
-elif ! check_cmd mktemp -u XXXXXX; then
-    # simple replacement for missing mktemp
-    # NOT SAFE FOR GENERAL USE
-    mktemp(){
-        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
-    }
-fi
-
-tmpfile(){
-    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
-        (set -C; exec > $tmp) 2>/dev/null ||
-        die "Unable to create temporary file in $TMPDIR."
-    append TMPFILES $tmp
-    eval $1=$tmp
-}
-
-trap 'rm -f -- $TMPFILES' EXIT
-
-tmpfile TMPASM .asm
-tmpfile TMPC   .c
-tmpfile TMPCPP .cpp
-tmpfile TMPE   $EXESUF
-tmpfile TMPH   .h
-tmpfile TMPO   .o
-tmpfile TMPS   .S
-tmpfile TMPSH  .sh
-tmpfile TMPV   .ver
-
-unset -f mktemp
-
-chmod +x $TMPE
-
-# 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 $TMPDIR.  Set the TMPDIR environment
-variable to another directory and make sure that it is not mounted noexec.
-EOF
-    die "Sanity test failed."
-fi
-
-ccc_flags(){
-    for flag; do
-        case $flag in
-            -std=c99)           echo -c99                       ;;
-            -mcpu=*)            echo -arch ${flag#*=}           ;;
-            -mieee)             echo -ieee                      ;;
-            -O*|-fast)          echo $flag                      ;;
-            -fno-math-errno)    echo -assume nomath_errno       ;;
-            -g)                 echo -g3                        ;;
-            -Wall)              echo -msg_enable level2         ;;
-            -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
-            -Wl,*)              echo $flag                      ;;
-            -f*|-W*)                                            ;;
-            *)                  echo $flag                      ;;
-        esac
-   done
-}
-
-cparser_flags(){
-    for flag; do
-        case $flag in
-            -Wno-switch)             echo -Wno-switch-enum ;;
-            -Wno-format-zero-length) ;;
-            -Wdisabled-optimization) ;;
-            -Wno-pointer-sign)       echo -Wno-other ;;
-            *)                       echo $flag ;;
-        esac
-    done
-}
-
-msvc_common_flags(){
-    for flag; do
-        case $flag in
-            # In addition to specifying certain flags under the compiler
-            # specific filters, they must be specified here as well or else the
-            # generic catch all at the bottom will print the original flag.
-            -Wall)                ;;
-            -std=c99)             ;;
-            # Common flags
-            -fomit-frame-pointer) ;;
-            -g)                   echo -Z7 ;;
-            -fno-math-errno)      ;;
-            -fno-common)          ;;
-            -fno-signed-zeros)    ;;
-            -fPIC)                ;;
-            -mthumb)              ;;
-            -march=*)             ;;
-            -lz)                  echo zlib.lib ;;
-            -lavifil32)           echo vfw32.lib ;;
-            -lavicap32)           echo vfw32.lib user32.lib ;;
-            -l*)                  echo ${flag#-l}.lib ;;
-            *)                    echo $flag ;;
-        esac
-    done
-}
-
-msvc_flags(){
-    msvc_common_flags "$@"
-    for flag; do
-        case $flag in
-            -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
-                                       -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
-                                       -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
-                                       -wd4554 \
-                                       -wd4273 ;;
-        esac
-    done
-}
-
-icl_flags(){
-    msvc_common_flags "$@"
-    for flag; do
-        case $flag in
-            # Despite what Intel's documentation says -Wall, which is supported
-            # on Windows, does enable remarks so disable them here.
-            -Wall)                echo $flag -Qdiag-disable:remark ;;
-            -std=c99)             echo -Qstd=c99 ;;
-        esac
-    done
-}
-
-pgi_flags(){
-    for flag; do
-        case $flag in
-            -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
-            -fomit-frame-pointer) echo -Mnoframe ;;
-            -g)                   echo -gopt ;;
-            *)                    echo $flag ;;
-        esac
-    done
-}
-
-suncc_flags(){
-    for flag; do
-        case $flag in
-            -march=*|-mcpu=*)
-                case "${flag#*=}" in
-                    native)                   echo -xtarget=native       ;;
-                    v9|niagara)               echo -xarch=sparc          ;;
-                    ultrasparc)               echo -xarch=sparcvis       ;;
-                    ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
-                    i586|pentium)             echo -xchip=pentium        ;;
-                    i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
-                    pentium3*|c3-2)           echo -xtarget=pentium3     ;;
-                    pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
-                    pentium4*)          echo -xtarget=pentium4           ;;
-                    prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
-                    *-sse3)             echo -xarch=sse3                 ;;
-                    core2)              echo -xarch=ssse3 -xchip=core2   ;;
-                    corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
-                    corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
-                    amdfam10|barcelona)        echo -xtarget=barcelona   ;;
-                    bdver*)                    echo -xarch=avx           ;;
-                    athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
-                    k8|opteron|athlon64|athlon-fx)
-                                               echo -xarch=sse2a         ;;
-                    athlon*)                   echo -xarch=pentium_proa  ;;
-                esac
-                ;;
-            -std=c99)             echo -xc99              ;;
-            -fomit-frame-pointer) echo -xregs=frameptr    ;;
-            -fPIC)                echo -KPIC -xcode=pic32 ;;
-            -W*,*)                echo $flag              ;;
-            -f*-*|-W*|-mimpure-text)                      ;;
-            -shared)              echo -G                 ;;
-            *)                    echo $flag              ;;
-        esac
-    done
-}
-
-tms470_flags(){
-    for flag; do
-        case $flag in
-            -march=*|-mcpu=*)
-                case "${flag#*=}" in
-                    armv7-a|cortex-a*)      echo -mv=7a8 ;;
-                    armv7-r|cortex-r*)      echo -mv=7r4 ;;
-                    armv7-m|cortex-m*)      echo -mv=7m3 ;;
-                    armv6*|arm11*)          echo -mv=6   ;;
-                    armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
-                                            echo -mv=5e  ;;
-                    armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
-                esac
-                ;;
-            -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
-            -mfpu=vfp)      echo --float_support=vfpv2        ;;
-            -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
-            -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
-            -msoft-float)   echo --float_support=vfplib       ;;
-            -O[0-3]|-mf=*)  echo $flag                        ;;
-            -g)             echo -g -mn                       ;;
-            -pds=*)         echo $flag                        ;;
-            -D*|-I*)        echo $flag                        ;;
-            --gcc|--abi=*)  echo $flag                        ;;
-            -me)            echo $flag                        ;;
-        esac
-    done
-}
-
-probe_cc(){
-    pfx=$1
-    _cc=$2
-
-    unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
-    unset _ld_o _ldflags _ld_lib _ld_path
-    unset _depflags _DEPCMD _DEPFLAGS
-    _flags_filter=echo
-
-    if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
-        true # no-op to avoid reading stdin in following checks
-    elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
-        _type=llvm_gcc
-        gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
-        _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
-        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-    elif $_cc -v 2>&1 | grep -qi ^gcc; then
-        _type=gcc
-        gcc_version=$($_cc --version | head -n1)
-        gcc_basever=$($_cc -dumpversion)
-        gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
-        gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
-        _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
-        if ! $_cc -dumpversion | grep -q '^2\.'; then
-            _depflags='-MMD -MF $(@:.o=.d) -MT $@'
-        fi
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-    elif $_cc --version 2>/dev/null | grep -q ^icc; then
-        _type=icc
-        _ident=$($_cc --version | head -n1)
-        _depflags='-MMD'
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-        _cflags_noopt='-O1'
-    elif $_cc -v 2>&1 | grep -q xlc; then
-        _type=xlc
-        _ident=$($_cc -qversion 2>/dev/null | head -n1)
-        _cflags_speed='-O5'
-        _cflags_size='-O5 -qcompact'
-    elif $_cc -V 2>/dev/null | grep -q Compaq; then
-        _type=ccc
-        _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
-        _DEPFLAGS='-M'
-        _cflags_speed='-fast'
-        _cflags_size='-O1'
-        _flags_filter=ccc_flags
-    elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
-        test -d "$sysroot" || die "No valid sysroot specified."
-        _type=armcc
-        _ident=$($_cc --vsn | head -n1)
-        armcc_conf="$PWD/armcc.conf"
-        $_cc --arm_linux_configure                 \
-             --arm_linux_config_file="$armcc_conf" \
-             --configure_sysroot="$sysroot"        \
-             --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
-             die "Error creating armcc configuration file."
-        $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
-        _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
-        as_default="${cross_prefix}gcc"
-        _depflags='-MMD'
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-    elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
-        _type=tms470
-        _ident=$($_cc -version | head -n1 | tr -s ' ')
-        _flags='--gcc --abi=eabi -me'
-        _cc_e='-ppl -fe=$@'
-        _cc_o='-fe=$@'
-        _depflags='-ppa -ppd=$(@:.o=.d)'
-        _cflags_speed='-O3 -mf=5'
-        _cflags_size='-O3 -mf=2'
-        _flags_filter=tms470_flags
-    elif $_cc -v 2>&1 | grep -q clang; then
-        _type=clang
-        _ident=$($_cc --version | head -n1)
-        _depflags='-MMD'
-        _cflags_speed='-O3'
-        _cflags_size='-Os'
-    elif $_cc -V 2>&1 | grep -q Sun; then
-        _type=suncc
-        _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
-        _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
-        _DEPFLAGS='-xM1 -xc99'
-        _ldflags='-std=c99'
-        _cflags_speed='-O5'
-        _cflags_size='-O5 -xspace'
-        _flags_filter=suncc_flags
-    elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
-        _type=pathscale
-        _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
-        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
-        _cflags_speed='-O2'
-        _cflags_size='-Os'
-        _flags_filter='filter_out -Wdisabled-optimization'
-    elif $_cc -v 2>&1 | grep -q Open64; then
-        _type=open64
-        _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
-        _depflags='-MMD -MF $(@:.o=.d) -MT $@'
-        _cflags_speed='-O2'
-        _cflags_size='-Os'
-        _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
-    elif $_cc -V 2>&1 | grep -q Portland; then
-        _type=pgi
-        _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
-        opt_common='-alias=ansi -Mdse -Mlre -Mpre'
-        _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
-        _cflags_size="-O2 -Munroll=c:1 $opt_common"
-        _cflags_noopt="-O"
-        _flags_filter=pgi_flags
-    elif $_cc 2>&1 | grep -q Microsoft; then
-        _type=msvc
-        _ident=$($cc 2>&1 | head -n1)
-        _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
-        _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
-        _cflags_speed="-O2"
-        _cflags_size="-O1"
-        if $_cc 2>&1 | grep -q Linker; then
-            _ld_o='-out:$@'
-        else
-            _ld_o='-Fe$@'
-        fi
-        _cc_o='-Fo$@'
-        _cc_e='-P -Fi$@'
-        _flags_filter=msvc_flags
-        _ld_lib='lib%.a'
-        _ld_path='-libpath:'
-        _flags='-nologo'
-        _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
-        if [ $pfx = hostcc ]; then
-            append _cflags -Dsnprintf=_snprintf
-        fi
-        disable stripping
-    elif $_cc 2>&1 | grep -q Intel; then
-        _type=icl
-        _ident=$($cc 2>&1 | head -n1)
-        _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
-        # Not only is O3 broken on 13.x+ but it is slower on all previous
-        # versions (tested) as well.
-        _cflags_speed="-O2"
-        _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
-        if $_cc 2>&1 | grep -q Linker; then
-            _ld_o='-out:$@'
-        else
-            _ld_o='-Fe$@'
-        fi
-        _cc_o='-Fo$@'
-        _cc_e='-P'
-        _flags_filter=icl_flags
-        _ld_lib='lib%.a'
-        _ld_path='-libpath:'
-        # -Qdiag-error to make icl error when seeing certain unknown arguments
-        _flags='-nologo -Qdiag-error:4044,10157'
-        # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
-        # with MSVC which enables it by default.
-        _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
-        if [ $pfx = hostcc ]; then
-            append _cflags -Dsnprintf=_snprintf
-        fi
-    elif $_cc --version 2>/dev/null | grep -q ^cparser; then
-        _type=cparser
-        _ident=$($_cc --version | head -n1)
-        _depflags='-MMD'
-        _cflags_speed='-O4'
-        _cflags_size='-O2'
-        _flags_filter=cparser_flags
-    fi
-
-    eval ${pfx}_type=\$_type
-    eval ${pfx}_ident=\$_ident
-}
-
-set_ccvars(){
-    eval ${1}_C=\${_cc_c-\${${1}_C}}
-    eval ${1}_E=\${_cc_e-\${${1}_E}}
-    eval ${1}_O=\${_cc_o-\${${1}_O}}
-
-    if [ -n "$_depflags" ]; then
-        eval ${1}_DEPFLAGS=\$_depflags
-    else
-        eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
-        eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
-        eval DEP${1}FLAGS=\$_flags
-    fi
-}
-
-probe_cc cc "$cc"
-cflags_filter=$_flags_filter
-cflags_speed=$_cflags_speed
-cflags_size=$_cflags_size
-cflags_noopt=$_cflags_noopt
-add_cflags $_flags $_cflags
-cc_ldflags=$_ldflags
-set_ccvars CC
-
-probe_cc hostcc "$host_cc"
-host_cflags_filter=$_flags_filter
-add_host_cflags  $_flags $_cflags
-set_ccvars HOSTCC
-
-test -n "$cc_type" && enable $cc_type ||
-    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
-
-: ${as_default:=$cc}
-: ${dep_cc_default:=$cc}
-: ${ld_default:=$cc}
-: ${host_ld_default:=$host_cc}
-set_default ar as dep_cc ld host_ld windres
-
-probe_cc as "$as"
-asflags_filter=$_flags_filter
-add_asflags $_flags $_cflags
-set_ccvars AS
-
-probe_cc ld "$ld"
-ldflags_filter=$_flags_filter
-add_ldflags $_flags $_ldflags
-test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
-LD_O=${_ld_o-$LD_O}
-LD_LIB=${_ld_lib-$LD_LIB}
-LD_PATH=${_ld_path-$LD_PATH}
-
-probe_cc hostld "$host_ld"
-host_ldflags_filter=$_flags_filter
-add_host_ldflags $_flags $_ldflags
-HOSTLD_O=${_ld_o-$HOSTLD_O}
-
-if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
-    probe_cc depcc "$dep_cc"
-    CCDEP=${_DEPCMD:-$DEPCMD}
-    CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
-    DEPCCFLAGS=$_flags
-fi
-
-if $ar 2>&1 | grep -q Microsoft; then
-    arflags="-nologo"
-    ar_o='-out:$@'
-elif $ar 2>&1 | grep -q 'Texas Instruments'; then
-    arflags="rq"
-    ar_o='$@'
-elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
-    arflags='-Xany -r -c'
-    ar_o='$@'
-else
-    arflags="rc"
-    ar_o='$@'
-fi
-
-add_cflags $extra_cflags
-add_cxxflags $extra_cxxflags
-add_asflags $extra_cflags
-
-if test -n "$sysroot"; then
-    case "$cc_type" in
-        gcc|llvm_gcc|clang)
-            add_cppflags --sysroot="$sysroot"
-            add_ldflags --sysroot="$sysroot"
-        ;;
-        tms470)
-            add_cppflags -I"$sysinclude"
-            add_ldflags  --sysroot="$sysroot"
-        ;;
-    esac
-fi
-
-if test "$cpu" = host; then
-    enabled cross_compile &&
-        die "--cpu=host makes no sense when cross-compiling."
-
-    case "$cc_type" in
-        gcc|llvm_gcc)
-            check_native(){
-                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
-                sed -n "/cc1.*$1=/{
-                            s/.*$1=\\([^ ]*\\).*/\\1/
-                            p
-                            q
-                        }" $TMPE
-            }
-            cpu=$(check_native -march || check_native -mcpu)
-        ;;
-    esac
-
-    test "${cpu:-host}" = host &&
-        die "--cpu=host not supported with compiler $cc"
-fi
-
-# Deal with common $arch aliases
-case "$arch" in
-    aarch64|arm64)
-        arch="aarch64"
-    ;;
-    arm*|iPad*|iPhone*)
-        arch="arm"
-    ;;
-    mips*|IP*)
-        arch="mips"
-    ;;
-    parisc*|hppa*)
-        arch="parisc"
-    ;;
-    "Power Macintosh"|ppc*|powerpc*)
-        arch="ppc"
-    ;;
-    s390|s390x)
-        arch="s390"
-    ;;
-    sh4|sh)
-        arch="sh4"
-    ;;
-    sun4u|sparc*)
-        arch="sparc"
-    ;;
-    tilegx|tile-gx)
-        arch="tilegx"
-    ;;
-    i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
-        arch="x86"
-    ;;
-esac
-
-is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
-enable $arch
-
-# Add processor-specific flags
-if enabled aarch64; then
-
-    case $cpu in
-        armv*)
-            cpuflags="-march=$cpu"
-        ;;
-        *)
-            cpuflags="-mcpu=$cpu"
-        ;;
-    esac
-
-elif enabled alpha; then
-
-    cpuflags="-mcpu=$cpu"
-
-elif enabled arm; then
-
-    check_arm_arch() {
-        check_cpp_condition stddef.h \
-            "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
-            $cpuflags
-    }
-
-    probe_arm_arch() {
-        if   check_arm_arch 4;        then echo armv4;
-        elif check_arm_arch 4T;       then echo armv4t;
-        elif check_arm_arch 5;        then echo armv5;
-        elif check_arm_arch 5E;       then echo armv5e;
-        elif check_arm_arch 5T;       then echo armv5t;
-        elif check_arm_arch 5TE;      then echo armv5te;
-        elif check_arm_arch 5TEJ;     then echo armv5te;
-        elif check_arm_arch 6;        then echo armv6;
-        elif check_arm_arch 6J;       then echo armv6j;
-        elif check_arm_arch 6K;       then echo armv6k;
-        elif check_arm_arch 6Z;       then echo armv6z;
-        elif check_arm_arch 6ZK;      then echo armv6zk;
-        elif check_arm_arch 6T2;      then echo armv6t2;
-        elif check_arm_arch 7;        then echo armv7;
-        elif check_arm_arch 7A  7_A;  then echo armv7-a;
-        elif check_arm_arch 7R  7_R;  then echo armv7-r;
-        elif check_arm_arch 7M  7_M;  then echo armv7-m;
-        elif check_arm_arch 7EM 7E_M; then echo armv7-m;
-        elif check_arm_arch 8A  8_A;  then echo armv8-a;
-        fi
-    }
-
-    [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
-
-    case $cpu in
-        armv*)
-            cpuflags="-march=$cpu"
-            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
-        ;;
-        *)
-            cpuflags="-mcpu=$cpu"
-            case $cpu in
-                cortex-a*)                               subarch=armv7a  ;;
-                cortex-r*)                               subarch=armv7r  ;;
-                cortex-m*)                 enable thumb; subarch=armv7m  ;;
-                arm11*)                                  subarch=armv6   ;;
-                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
-                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
-                *)                             subarch=$(probe_arm_arch) ;;
-            esac
-        ;;
-    esac
-
-    case "$subarch" in
-        armv5t*)    enable fast_clz                ;;
-        armv[6-8]*) enable fast_clz fast_unaligned ;;
-    esac
-
-elif enabled avr32; then
-
-    case $cpu in
-        ap7[02]0[0-2])
-            subarch="avr32_ap"
-            cpuflags="-mpart=$cpu"
-        ;;
-        ap)
-            subarch="avr32_ap"
-            cpuflags="-march=$cpu"
-        ;;
-        uc3[ab]*)
-            subarch="avr32_uc"
-            cpuflags="-mcpu=$cpu"
-        ;;
-        uc)
-            subarch="avr32_uc"
-            cpuflags="-march=$cpu"
-        ;;
-    esac
-
-elif enabled bfin; then
-
-    cpuflags="-mcpu=$cpu"
-
-elif enabled mips; then
-
-    cpuflags="-march=$cpu"
-
-    case $cpu in
-        24kc)
-            disable mipsfpu
-            disable mipsdspr1
-            disable mipsdspr2
-        ;;
-        24kf*)
-            disable mipsdspr1
-            disable mipsdspr2
-        ;;
-        24kec|34kc|1004kc)
-            disable mipsfpu
-            disable mipsdspr2
-        ;;
-        24kef*|34kf*|1004kf*)
-            disable mipsdspr2
-        ;;
-        74kc)
-            disable mipsfpu
-        ;;
-    esac
-
-elif enabled ppc; then
-
-    case $(tolower $cpu) in
-        601|ppc601|powerpc601)
-            cpuflags="-mcpu=601"
-            disable altivec
-        ;;
-        603*|ppc603*|powerpc603*)
-            cpuflags="-mcpu=603"
-            disable altivec
-        ;;
-        604*|ppc604*|powerpc604*)
-            cpuflags="-mcpu=604"
-            disable altivec
-        ;;
-        g3|75*|ppc75*|powerpc75*)
-            cpuflags="-mcpu=750"
-            disable altivec
-        ;;
-        g4|745*|ppc745*|powerpc745*)
-            cpuflags="-mcpu=7450"
-        ;;
-        74*|ppc74*|powerpc74*)
-            cpuflags="-mcpu=7400"
-        ;;
-        g5|970|ppc970|powerpc970)
-            cpuflags="-mcpu=970"
-        ;;
-        power[3-7]*)
-            cpuflags="-mcpu=$cpu"
-        ;;
-        cell)
-            cpuflags="-mcpu=cell"
-            enable ldbrx
-        ;;
-        e500mc)
-            cpuflags="-mcpu=e500mc"
-            disable altivec
-        ;;
-        e500v2)
-            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
-            disable altivec
-        ;;
-        e500)
-            cpuflags="-mcpu=8540 -mhard-float"
-            disable altivec
-        ;;
-    esac
-
-elif enabled sparc; then
-
-    case $cpu in
-        cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
-            cpuflags="-mcpu=$cpu"
-            disable vis
-        ;;
-        ultrasparc*|niagara[234])
-            cpuflags="-mcpu=$cpu"
-        ;;
-    esac
-
-elif enabled x86; then
-
-    case $cpu in
-        i[345]86|pentium)
-            cpuflags="-march=$cpu"
-            disable mmx
-        ;;
-        # targets that do NOT support nopl and conditional mov (cmov)
-        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
-            cpuflags="-march=$cpu"
-            disable i686
-        ;;
-        # targets that do support nopl and conditional mov (cmov)
-        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
-            cpuflags="-march=$cpu"
-            enable i686
-            enable fast_cmov
-        ;;
-        # targets that do support conditional mov but on which it's slow
-        pentium4|pentium4m|prescott|nocona)
-            cpuflags="-march=$cpu"
-            enable i686
-            disable fast_cmov
-        ;;
-    esac
-
-fi
-
-if [ "$cpu" != generic ]; then
-    add_cflags  $cpuflags
-    add_asflags $cpuflags
-fi
-
-# compiler sanity check
-check_exec <<EOF
-int main(void){ return 0; }
-EOF
-if test "$?" != 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
-
-add_cppflags -D_ISOC99_SOURCE
-add_cxxflags -D__STDC_CONSTANT_MACROS
-check_cflags -std=c99
-check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
-#include <stdlib.h>
-EOF
-check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
-#include <stdlib.h>
-EOF
-
-check_host_cflags -std=c99
-check_host_cflags -Wall
-
-check_64bit(){
-    arch32=$1
-    arch64=$2
-    expr=$3
-    check_code cc "" "int test[2*($expr) - 1]" &&
-        subarch=$arch64 || subarch=$arch32
-}
-
-case "$arch" in
-    aarch64|alpha|ia64)
-        spic=$shared
-    ;;
-    mips)
-        check_64bit mips mips64 '_MIPS_SIM > 1'
-        spic=$shared
-    ;;
-    parisc)
-        check_64bit parisc parisc64 'sizeof(void *) > 4'
-        spic=$shared
-    ;;
-    ppc)
-        check_64bit ppc ppc64 'sizeof(void *) > 4'
-        spic=$shared
-    ;;
-    sparc)
-        check_64bit sparc sparc64 'sizeof(void *) > 4'
-        spic=$shared
-    ;;
-    x86)
-        check_64bit x86_32 x86_64 'sizeof(void *) > 4'
-        if test "$subarch" = "x86_64"; then
-            spic=$shared
-        fi
-    ;;
-    ppc)
-        check_cc <<EOF && subarch="ppc64"
-        int test[(int)sizeof(char*) - 7];
-EOF
-    ;;
-esac
-
-enable $subarch
-enabled spic && enable_weak pic
-
-# OS specific
-case $target_os in
-    aix)
-        SHFLAGS=-shared
-        add_cppflags '-I\$(SRC_PATH)/compat/aix'
-        enabled shared && add_ldflags -Wl,-brtl
-        ;;
-    haiku)
-        prefix_default="/boot/common"
-        network_extralibs="-lnetwork"
-        host_libs=
-        ;;
-    sunos)
-        SHFLAGS='-shared -Wl,-h,$$(@F)'
-        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
-        network_extralibs="-lsocket -lnsl"
-        # When using suncc to build, the Solaris linker will mark
-        # an executable with each instruction set encountered by
-        # the Solaris assembler.  As our libraries contain their own
-        # guards for processor-specific code, instead suppress
-        # generation of the HWCAPS ELF section on Solaris x86 only.
-        enabled_all suncc x86 &&
-            echo "hwcap_1 = OVERRIDE;" > mapfile &&
-            add_ldflags -Wl,-M,mapfile
-        nm_default='nm -P -g'
-        ;;
-    netbsd)
-        disable symver
-        oss_indev_extralibs="-lossaudio"
-        oss_outdev_extralibs="-lossaudio"
-        enabled gcc || check_ldflags -Wl,-zmuldefs
-        ;;
-    openbsd|bitrig)
-        disable symver
-        SHFLAGS='-shared'
-        SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
-        SLIB_INSTALL_LINKS=
-        oss_indev_extralibs="-lossaudio"
-        oss_outdev_extralibs="-lossaudio"
-        ;;
-    dragonfly)
-        disable symver
-        ;;
-    freebsd)
-        ;;
-    bsd/os)
-        add_extralibs -lpoll -lgnugetopt
-        strip="strip -d"
-        ;;
-    darwin)
-        gas="gas-preprocessor.pl $cc"
-        enabled ppc && add_asflags -force_cpusubtype_ALL
-        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
-        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
-        strip="${strip} -x"
-        add_ldflags -Wl,-dynamic,-search_paths_first
-        SLIBSUF=".dylib"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
-        objformat="macho"
-        enabled x86_64 && objformat="macho64"
-        enabled_any pic shared ||
-            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
-        ;;
-    mingw32*)
-        if test $target_os = "mingw32ce"; then
-            disable network
-        else
-            target_os=mingw32
-        fi
-        LIBTARGET=i386
-        if enabled x86_64; then
-            LIBTARGET="i386:x86-64"
-        elif enabled arm; then
-            LIBTARGET=arm-wince
-        fi
-        enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
-        check_ldflags -Wl,--nxcompat
-        check_ldflags -Wl,--dynamicbase
-        shlibdir_default="$bindir_default"
-        SLIBPREF=""
-        SLIBSUF=".dll"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
-        dlltool="${cross_prefix}dlltool"
-        if check_cmd lib.exe -list; then
-            SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
-            if enabled x86_64; then
-                LIBTARGET=x64
-            fi
-        elif check_cmd $dlltool --version; then
-            SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
-        fi
-        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
-        SLIB_INSTALL_LINKS=
-        SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
-        SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
-        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
-        objformat="win32"
-        ranlib=:
-        enable dos_paths
-        ;;
-    win32|win64)
-        disable symver
-        if enabled shared; then
-            # Link to the import library instead of the normal static library
-            # for shared libs.
-            LD_LIB='%.lib'
-            # Cannot build both shared and static libs with MSVC or icl.
-            disable static
-        fi
-        shlibdir_default="$bindir_default"
-        SLIBPREF=""
-        SLIBSUF=".dll"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
-        SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
-        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
-        SLIB_INSTALL_LINKS=
-        SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
-        SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
-        SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
-        objformat="win32"
-        ranlib=:
-        enable dos_paths
-        ;;
-    cygwin*)
-        target_os=cygwin
-        shlibdir_default="$bindir_default"
-        SLIBPREF="cyg"
-        SLIBSUF=".dll"
-        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
-        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
-        SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
-        SLIB_INSTALL_LINKS=
-        SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
-        SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
-        objformat="win32"
-        enable dos_paths
-        enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
-        ;;
-    *-dos|freedos|opendos)
-        network_extralibs="-lsocket"
-        objformat="coff"
-        enable dos_paths
-        add_cppflags -U__STRICT_ANSI__
-        ;;
-    linux)
-        enable dv1394
-        ;;
-    irix*)
-        target_os=irix
-        ranlib="echo ignoring ranlib"
-        ;;
-    os/2*)
-        strip="lxlite -CS"
-        ln_s="cp -f"
-        objformat="aout"
-        add_cppflags -D_GNU_SOURCE
-        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
-        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
-        LIBSUF="_s.a"
-        SLIBPREF=""
-        SLIBSUF=".dll"
-        SLIBNAME_WITH_VERSION='$(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_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
-        enable dos_paths
-        enable_weak os2threads
-        ;;
-    gnu/kfreebsd)
-        add_cppflags -D_BSD_SOURCE
-        ;;
-    gnu)
-        ;;
-    qnx)
-        add_cppflags -D_QNX_SOURCE
-        network_extralibs="-lsocket"
-        ;;
-    symbian)
-        SLIBSUF=".dll"
-        enable dos_paths
-        add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
-        add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
-        add_ldflags -Wl,--target1-abs,--no-undefined \
-                    -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
-                    -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
-        add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
-                      -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
-                      -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
-        ;;
-    osf1)
-        add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
-        ;;
-    minix)
-        ;;
-    plan9)
-        add_cppflags -D_C99_SNPRINTF_EXTENSION  \
-                     -D_REENTRANT_SOURCE        \
-                     -D_RESEARCH_SOURCE         \
-                     -DFD_SETSIZE=96            \
-                     -DHAVE_SOCK_OPTS
-        add_compat strtod.o strtod=avpriv_strtod
-        network_extralibs='-lbsd'
-        exeobjs=compat/plan9/main.o
-        disable ffserver
-        cp_f='cp'
-        ;;
-    none)
-        ;;
-    *)
-        die "Unknown OS '$target_os'."
-        ;;
-esac
-
-# determine libc flavour
-
-probe_libc(){
-    pfx=$1
-    pfx_no_=${pfx%_}
-    # uclibc defines __GLIBC__, so it needs to be checked before glibc.
-    if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
-        eval ${pfx}libc_type=uclibc
-        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-    elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
-        eval ${pfx}libc_type=glibc
-        add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
-    # MinGW headers can be installed on Cygwin, so check for newlib first.
-    elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
-        eval ${pfx}libc_type=newlib
-        add_${pfx}cppflags -U__STRICT_ANSI__
-    # MinGW64 is backwards compatible with MinGW32, so check for it first.
-    elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
-        eval ${pfx}libc_type=mingw64
-        if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
-            add_compat msvcrt/snprintf.o
-            add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
-        fi
-        add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
-        eval test \$${pfx_no_}cc_type = "gcc" &&
-            add_${pfx}cppflags -D__printf__=__gnu_printf__
-    elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
-         check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
-        eval ${pfx}libc_type=mingw32
-        check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
-            (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
-            die "ERROR: MinGW32 runtime version must be >= 3.15."
-        add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
-        eval test \$${pfx_no_}cc_type = "gcc" &&
-            add_${pfx}cppflags -D__printf__=__gnu_printf__
-    elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
-        eval ${pfx}libc_type=msvcrt
-        # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
-        # 0x601 by default unless something else is set by the user.
-        # This can easily lead to us detecting functions only present
-        # in such new versions and producing binaries requiring windows 7.0.
-        # Therefore explicitly set the default to XP unless the user has
-        # set something else on the command line.
-        check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
-            add_${pfx}cppflags -D_WIN32_WINNT=0x0502
-    elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
-        eval ${pfx}libc_type=klibc
-    elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
-        eval ${pfx}libc_type=bionic
-    elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
-        eval ${pfx}libc_type=solaris
-        add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
-    fi
-}
-
-probe_libc
-test -n "$libc_type" && enable libc_$libc_type
-probe_libc host_
-test -n "$host_libc_type" && enable host_libc_$host_libc_type
-
-case $libc_type in
-    bionic)
-        add_compat strtod.o strtod=avpriv_strtod
-        ;;
-    msvcrt)
-        add_compat strtod.o strtod=avpriv_strtod
-        add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
-                                     _snprintf=avpriv_snprintf  \
-                                     vsnprintf=avpriv_vsnprintf
-        ;;
-esac
-
-# hacks for compiler/libc/os combinations
-
-if enabled_all tms470 libc_glibc; then
-    CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
-    add_cppflags -D__USER_LABEL_PREFIX__=
-    add_cppflags -D__builtin_memset=memset
-    add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
-    add_cflags   -pds=48    # incompatible redefinition of macro
-fi
-
-if enabled_all ccc libc_glibc; then
-    add_ldflags -Wl,-z,now  # calls to libots crash without this
-fi
-
-esc(){
-    echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
-}
-
-echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
-
-check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
-
-set_default $PATHS_LIST
-set_default nm
-
-# 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
-
-# backward compatibility layer for incompatible_libav/fork_abi
-enabled incompatible_fork_abi  && enable incompatible_libav_abi
-enabled incompatible_libav_abi && enable incompatible_fork_abi
-
-die_license_disabled() {
-    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
-}
-
-die_license_disabled_gpl() {
-    enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
-}
-
-die_license_disabled gpl frei0r
-die_license_disabled gpl libcdio
-die_license_disabled gpl libutvideo
-die_license_disabled gpl libvidstab
-die_license_disabled gpl libx264
-die_license_disabled gpl libxavs
-die_license_disabled gpl libxvid
-die_license_disabled gpl libzvbi
-die_license_disabled gpl x11grab
-
-die_license_disabled nonfree libaacplus
-die_license_disabled nonfree libfaac
-enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
-enabled gpl && die_license_disabled_gpl nonfree openssl
-
-die_license_disabled version3 libopencore_amrnb
-die_license_disabled version3 libopencore_amrwb
-die_license_disabled version3 libvo_aacenc
-die_license_disabled version3 libvo_amrwbenc
-
-enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
-
-disabled optimizations || check_cflags -fomit-frame-pointer
-
-enable_weak_pic() {
-    disabled pic && return
-    enable pic
-    add_cppflags -DPIC
-    case "$target_os" in
-    mingw*|cygwin*)
-        ;;
-    *)
-        add_cflags -fPIC
-        ;;
-    esac
-    add_asflags  -fPIC
-}
-
-enabled pic && enable_weak_pic
-
-check_cc <<EOF || die "Symbol mangling check failed."
-int ff_extern;
-EOF
-sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
-extern_prefix=${sym%%ff_extern*}
-
-check_cc <<EOF && enable_weak inline_asm
-void foo(void) { __asm__ volatile ("" ::); }
-EOF
-
-_restrict=
-for restrict_keyword in restrict __restrict__ __restrict; do
-    check_cc <<EOF && _restrict=$restrict_keyword && break
-void foo(char * $restrict_keyword p);
-EOF
-done
-
-check_cc <<EOF && enable pragma_deprecated
-void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
-EOF
-
-check_cc <<EOF && enable attribute_packed
-struct { int x; } __attribute__((packed)) x;
-EOF
-
-check_cc <<EOF && enable attribute_may_alias
-union { int x; } __attribute__((may_alias)) x;
-EOF
-
-check_cc <<EOF || die "endian test failed"
-unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
-EOF
-od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
-
-check_inline_asm inline_asm_labels '"1:\n"'
-
-if enabled alpha; then
-
-    check_cflags -mieee
-
-elif enabled arm; then
-
-    check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
-float func(float a, float b){ return a+b; }
-EOF
-
-    enabled thumb && check_cflags -mthumb || check_cflags -marm
-    nogas=die
-
-    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
-        enable vfp_args
-    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
-        case "${cross_prefix:-$cc}" in
-            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
-            *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
-__asm__ (".eabi_attribute 28, 1");
-int main(void) { return 0; }
-EOF
-        esac
-        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
-    fi
-
-    enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
-    enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
-    enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
-    enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
-    enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
-    enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
-
-    [ $target_os = linux ] ||
-        map 'enabled_any ${v}_external ${v}_inline || disable $v' \
-            $ARCH_EXT_LIST_ARM
-
-    check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
-    check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
-
-    [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
-
-elif enabled mips; then
-
-    check_inline_asm loongson '"dmult.g $1, $2, $3"'
-    enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
-     check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
-    enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
-     check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
-    enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
-     check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
-    enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
-     check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
-
-elif enabled parisc; then
-
-    if enabled gcc; then
-        case $($cc -dumpversion) in
-            4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
-        esac
-    fi
-
-elif enabled ppc; then
-
-    enable local_aligned_8 local_aligned_16
-
-    check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
-    check_inline_asm ibm_asm   '"add 0, 0, 0"'
-    check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
-    check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
-
-    # AltiVec flags: The FSF version of GCC differs from the Apple version
-    if enabled altivec; then
-        if ! enabled_any pic ppc64; then
-            nogas=warn
-        fi
-        check_cflags -maltivec -mabi=altivec &&
-        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
-        check_cflags -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 = (vector signed int) { 0 };
-    vector signed int v2 = (vector signed int) { 1 };
-    v1 = vec_add(v1, v2);
-    return 0;
-}
-EOF
-
-        enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
-    fi
-
-elif enabled sparc; then
-
-    enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
-
-elif enabled x86; then
-
-    check_builtin rdtsc    intrin.h   "__rdtsc()"
-    check_builtin mm_empty mmintrin.h "_mm_empty()"
-
-    enable local_aligned_8 local_aligned_16
-
-    # 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 whether EBX is available on x86
-    check_inline_asm ebx_available '""::"b"(0)' &&
-        check_inline_asm ebx_available '"":::"%ebx"'
-
-    # check whether xmm clobbers are supported
-    check_inline_asm xmm_clobbers '"":::"%xmm0"'
-
-    # check whether binutils is new enough to compile SSSE3/MMXEXT
-    enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
-    enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
-
-    if ! disabled_any asm mmx yasm; then
-        if check_cmd $yasmexe --version; then
-            enabled x86_64 && yasm_extra="-m amd64"
-            yasm_debug="-g dwarf2"
-        elif check_cmd nasm -v; then
-            yasmexe=nasm
-            yasm_debug="-g -F dwarf"
-            enabled x86_64 && test "$objformat" = elf && objformat=elf64
-        fi
-
-        YASMFLAGS="-f $objformat $yasm_extra"
-        enabled pic               && append YASMFLAGS "-DPIC"
-        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
-        case "$objformat" in
-            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
-        esac
-
-        check_yasm "movbe ecx, [5]" && enable yasm ||
-            die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
-        check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
-        check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
-        check_yasm "CPU amdnop" && enable cpunop
-    fi
-
-    case "$cpu" in
-        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
-            disable fast_clz
-        ;;
-    esac
-
-fi
-
-if enabled asm; then
-    as=${gas:=$as}
-    check_as <<EOF && enable gnu_as || \
-        $nogas "GNU assembler not found, install gas-preprocessor"
-.macro m n
-\n: .int 0
-.endm
-m x
-EOF
-fi
-
-check_ldflags -Wl,--as-needed
-
-if check_func dlopen; then
-    ldl=
-elif check_func dlopen -ldl; then
-    ldl=-ldl
-fi
-
-if ! disabled network; then
-    check_type "sys/types.h sys/socket.h" socklen_t
-    check_type netdb.h "struct addrinfo"
-    check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
-    check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
-    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
-    check_type netinet/in.h "struct sockaddr_in6"
-    check_type poll.h "struct pollfd"
-    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
-    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
-    check_type netinet/sctp.h "struct sctp_event_subscribe"
-    check_func getaddrinfo $network_extralibs
-    check_func getservbyport $network_extralibs
-    # Prefer arpa/inet.h over winsock2
-    if check_header arpa/inet.h ; then
-        check_func closesocket
-    elif check_header winsock2.h ; then
-        check_func_headers winsock2.h closesocket -lws2 &&
-            network_extralibs="-lws2" ||
-        { check_func_headers winsock2.h closesocket -lws2_32 &&
-            network_extralibs="-lws2_32"; }
-        check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
-        check_type ws2tcpip.h socklen_t
-        check_type ws2tcpip.h "struct addrinfo"
-        check_type ws2tcpip.h "struct group_source_req"
-        check_type ws2tcpip.h "struct ip_mreq_source"
-        check_type ws2tcpip.h "struct ipv6_mreq"
-        check_type winsock2.h "struct pollfd"
-        check_type ws2tcpip.h "struct sockaddr_in6"
-        check_type ws2tcpip.h "struct sockaddr_storage"
-        check_struct winsock2.h "struct sockaddr" sa_len
-    else
-        disable network
-    fi
-fi
-
-# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
-check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
-
-check_func  access
-check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
-check_func  fcntl
-check_func  fork
-check_func_headers stdlib.h getenv
-check_func  gethrtime
-check_func  getopt
-check_func  getrusage
-check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
-check_func  gettimeofday
-check_func  inet_aton $network_extralibs
-check_func  isatty
-check_func  localtime_r
-check_func  ${malloc_prefix}memalign            && enable memalign
-check_func  mkstemp
-check_func  mmap
-check_func  mprotect
-check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
-check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
-check_func  setrlimit
-check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
-check_func  strerror_r
-check_func  sched_getaffinity
-check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
-check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
-check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
-check_builtin MemoryBarrier windows.h "MemoryBarrier()"
-check_builtin sarestart signal.h "SA_RESTART"
-check_func  sysconf
-check_func  sysctl
-check_func  usleep
-check_func_headers conio.h kbhit
-check_func_headers windows.h PeekNamedPipe
-check_func_headers io.h setmode
-check_func_headers lzo/lzo1x.h lzo1x_999_compress
-check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
-check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
-check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
-check_func_headers windows.h GetProcessAffinityMask
-check_func_headers windows.h GetProcessTimes
-check_func_headers windows.h GetSystemTimeAsFileTime
-check_func_headers windows.h MapViewOfFile
-check_func_headers windows.h SetConsoleTextAttribute
-check_func_headers windows.h Sleep
-check_func_headers windows.h VirtualAlloc
-check_func_headers glob.h glob
-check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
-
-check_header cl/cl.h
-check_header direct.h
-check_header dlfcn.h
-check_header dxva.h
-check_header dxva2api.h -D_WIN32_WINNT=0x0600
-check_header io.h
-check_header libcrystalhd/libcrystalhd_if.h
-check_header malloc.h
-check_header poll.h
-check_header sys/mman.h
-check_header sys/param.h
-check_header sys/resource.h
-check_header sys/select.h
-check_header sys/time.h
-check_header sys/un.h
-check_header termios.h
-check_header unistd.h
-check_header vdpau/vdpau.h
-check_header vdpau/vdpau_x11.h
-check_header VideoDecodeAcceleration/VDADecoder.h
-check_header windows.h
-check_header X11/extensions/XvMClib.h
-check_header asm/types.h
-
-if ! disabled w32threads && ! enabled pthreads; then
-    check_func_headers "windows.h process.h" _beginthreadex &&
-        enable w32threads || disable w32threads
-fi
-
-# check for some common methods of building with pthread support
-# do this before the optional library checks as some of them require pthreads
-if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
-    enable pthreads
-    if check_func pthread_join -pthread && check_func pthread_create -pthread; then
-        add_cflags -pthread
-        add_extralibs -pthread
-    elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
-        add_cflags -pthreads
-        add_extralibs -pthreads
-    elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
-        add_extralibs -lpthreadGC2
-    elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
-        :
-    elif ! check_func pthread_join && ! check_func pthread_create; then
-        disable 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
-
-if enabled pthreads; then
-  check_func pthread_cancel
-fi
-
-disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
-disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
-
-check_lib math.h sin -lm && LIBM="-lm"
-disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
-
-atan2f_args=2
-ldexpf_args=2
-powf_args=2
-
-for func in $MATH_FUNCS; do
-    eval check_mathfunc $func \${${func}_args:-1}
-done
-
-# these are off by default, so fail if requested and not available
-enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
-                               { check_lib2 "dlfcn.h" dlopen -ldl; } ||
-                               die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
-enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
-enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
-enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
-enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
-enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
-enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
-enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
-enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
-enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
-                             { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
-                               die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
-enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
-enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
-enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
-flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
-enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
-enabled libfreetype       && require_libfreetype
-enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
-enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
-                                   check_lib "${gsm_hdr}" gsm_create -lgsm && break;
-                               done || die "ERROR: libgsm not found"; }
-enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
-enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
-enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
-enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
-enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
-enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
-enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
-enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
-                               check_lib openjpeg.h opj_version -lopenjpeg ||
-                               die "ERROR: libopenjpeg not found"; }
-enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
-enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
-enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
-enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
-enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
-enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
-enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
-enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
-enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
-enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
-    media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
-    media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
-enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
-enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
-                             { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
-                               die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
-enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
-enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
-enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
-enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
-enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
-enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
-enabled libvpx            && {
-    enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
-                                    die "ERROR: libvpx decoder version must be >=0.9.1"; }
-    enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
-                                    die "ERROR: libvpx encoder version must be >=0.9.7"; }
-    enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
-    enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_SVC" -lvpx || disable libvpx_vp9_encoder; } }
-enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
-enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
-enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
-                             { check_cpp_condition x264.h "X264_BUILD >= 118" ||
-                               die "ERROR: libx264 must be installed and version must be >= 0.118."; }
-enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
-enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
-enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
-enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
-enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
-                               check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
-                               die "ERROR: openal not found"; } &&
-                             { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
-                               die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
-enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
-                               check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
-                               die "ERROR: opencl not found"; } &&
-                             { ! enabled_any w32threads os2threads ||
-                               die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
-                             { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
-                               check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
-                               die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
-enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
-                               check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
-                               check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
-                               die "ERROR: openssl not found"; }
-
-if enabled gnutls; then
-    { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
-    { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
-fi
-
-# 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
-
-SDL_CONFIG="${cross_prefix}sdl-config"
-if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
-    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
-    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
-    enable sdl
-else
-  if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
-    sdl_cflags=$("${SDL_CONFIG}" --cflags)
-    sdl_libs=$("${SDL_CONFIG}" --libs)
-    check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
-    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
-    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
-    enable sdl
-  fi
-fi
-enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
-
-texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
-makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
-perl -v            > /dev/null 2>&1 && enable perl      || disable perl
-pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
-rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
-
-check_header linux/fb.h
-check_header linux/videodev.h
-check_header linux/videodev2.h
-check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
-
-check_header sys/videoio.h
-
-check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
-# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
-# w32api 3.12 had it defined wrong
-check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
-
-check_type "dshow.h" IBaseFilter
-
-# 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 sndio.h
-if check_struct sys/soundcard.h audio_buf_info bytes; then
-    enable_safe sys/soundcard.h
-else
-    check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
-    #include <sys/soundcard.h>
-    audio_buf_info abc;
-EOF
-fi
-check_header soundcard.h
-
-enabled_any alsa_indev alsa_outdev &&
-    check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
-
-enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
-    check_func jack_port_get_latency_range -ljack
-
-enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
-
-if enabled libcdio; then
-    check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
-    check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
-    die "ERROR: libcdio-paranoia not found"
-fi
-
-check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
-
-enabled x11grab                                           &&
-require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
-require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
-{ enabled xlib || die "ERROR: Xlib not found"; }
-
-enabled vaapi &&
-    check_lib va/va.h vaInitialize -lva ||
-    disable vaapi
-
-enabled vdpau &&
-    check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
-    disable vdpau
-
-enabled vdpau && enabled xlib &&
-    check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
-    enable vdpau_x11
-
-# Funny iconv installations are not unusual, so check it after all flags have been set
-disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
-
-enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
-
-# add some useful compiler flags if supported
-check_cflags -Wdeclaration-after-statement
-check_cflags -Wall
-check_cflags -Wdisabled-optimization
-check_cflags -Wpointer-arith
-check_cflags -Wredundant-decls
-check_cflags -Wwrite-strings
-check_cflags -Wtype-limits
-check_cflags -Wundef
-check_cflags -Wmissing-prototypes
-check_cflags -Wno-pointer-to-int-cast
-check_cflags -Wstrict-prototypes
-enabled extra_warnings && check_cflags -Winline
-
-check_disable_warning(){
-    warning_flag=-W${1#-Wno-}
-    test_cflags $warning_flag && add_cflags $1
-}
-
-check_disable_warning -Wno-parentheses
-check_disable_warning -Wno-switch
-check_disable_warning -Wno-format-zero-length
-check_disable_warning -Wno-pointer-sign
-
-# add some linker flags
-check_ldflags -Wl,--warn-common
-check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
-enabled rpath && add_ldflags -Wl,-rpath=$libdir
-test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
-
-# add some strip flags
-# -wN '..@*' is more selective than -x, but not available everywhere.
-check_stripflags -wN \'..@*\' || check_stripflags -x
-
-enabled xmm_clobber_test &&
-    check_ldflags -Wl,--wrap,avcodec_open2              \
-                  -Wl,--wrap,avcodec_decode_audio4      \
-                  -Wl,--wrap,avcodec_decode_video2      \
-                  -Wl,--wrap,avcodec_decode_subtitle2   \
-                  -Wl,--wrap,avcodec_encode_audio2      \
-                  -Wl,--wrap,avcodec_encode_video       \
-                  -Wl,--wrap,avcodec_encode_video2      \
-                  -Wl,--wrap,avcodec_encode_subtitle    \
-                  -Wl,--wrap,sws_scale ||
-    disable xmm_clobber_test
-
-echo "X{};" > $TMPV
-if test_ldflags -Wl,--version-script,$TMPV; then
-    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
-    check_cc <<EOF && enable symver_asm_label
-void ff_foo(void) __asm__ ("av_foo@VERSION");
-void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
-EOF
-    check_cc <<EOF && enable symver_gnu_asm
-__asm__(".symver ff_foo,av_foo@VERSION");
-void ff_foo(void) {}
-EOF
-fi
-
-if [ -z "$optflags" ]; then
-    if enabled small; then
-        optflags=$cflags_size
-    elif enabled optimizations; then
-        optflags=$cflags_speed
-    else
-        optflags=$cflags_noopt
-    fi
-fi
-
-check_optflags(){
-    check_cflags "$@"
-    enabled lto && check_ldflags "$@"
-}
-
-
-if enabled lto; then
-    test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
-    check_cflags  -flto
-    check_ldflags -flto $cpuflags
-fi
-
-check_optflags $optflags
-check_optflags -fno-math-errno
-check_optflags -fno-signed-zeros
-
-enabled ftrapv && check_cflags -ftrapv
-
-check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
-int x;
-EOF
-
-
-if enabled icc; then
-    # Just warnings, no remarks
-    check_cflags -w1
-    # -wd: Disable following warnings
-    # 144, 167, 556: -Wno-pointer-sign
-    # 188: enumerated type mixed with another type
-    # 1292: attribute "foo" ignored
-    # 1419: external declaration in primary source file
-    # 10006: ignoring unknown option -fno-signed-zeros
-    # 10148: ignoring unknown option -Wno-parentheses
-    # 10156: ignoring option '-W'; no argument required
-    check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
-    # 11030: Warning unknown option --as-needed
-    # 10156: ignoring option '-export'; no argument required
-    check_ldflags -wd10156,11030
-    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
-    enable ebp_available
-    if enabled x86_32; then
-        icc_version=$($cc -dumpversion)
-        test ${icc_version%%.*} -ge 11 &&
-            check_cflags -falign-stack=maintain-16-byte ||
-            disable aligned_stack
-    fi
-elif enabled ccc; then
-    # disable some annoying warnings
-    add_cflags -msg_disable bitnotint
-    add_cflags -msg_disable mixfuncvoid
-    add_cflags -msg_disable nonstandcast
-    add_cflags -msg_disable unsupieee
-elif enabled gcc; then
-    check_optflags -fno-tree-vectorize
-    check_cflags -Werror=implicit-function-declaration
-    check_cflags -Werror=missing-prototypes
-    check_cflags -Werror=return-type
-    check_cflags -Werror=vla
-    enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
-elif enabled llvm_gcc; then
-    check_cflags -mllvm -stack-alignment=16
-elif enabled clang; then
-    check_cflags -mllvm -stack-alignment=16
-    check_cflags -Qunused-arguments
-    check_cflags -Werror=implicit-function-declaration
-    check_cflags -Werror=missing-prototypes
-    check_cflags -Werror=return-type
-elif enabled cparser; then
-    add_cflags -Wno-missing-variable-declarations
-    add_cflags -Wno-empty-statement
-elif enabled armcc; then
-    # 2523: use of inline assembler is deprecated
-    add_cflags -W${armcc_opt},--diag_suppress=2523
-    add_cflags -W${armcc_opt},--diag_suppress=1207
-    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
-    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
-    add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
-    add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
-elif enabled tms470; then
-    add_cflags -pds=824 -pds=837
-    disable inline_asm
-elif enabled pathscale; then
-    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
-elif enabled_any msvc icl; then
-    enabled x86_32 && disable aligned_stack
-    enabled_all x86_32 debug && add_cflags -Oy-
-    enabled debug && add_ldflags -debug
-    enable pragma_deprecated
-    if enabled icl; then
-        # -Qansi-alias is basically -fstrict-aliasing, but does not work
-        # (correctly) on icl 13.x.
-        check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
-            add_cflags -Qansi-alias
-        # icl will pass the inline asm tests but inline asm is currently
-        # not supported (build will fail)
-        disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
-        disable inline_asm
-    fi
-fi
-
-case $target_os in
-    osf1)
-        enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
-    ;;
-    plan9)
-        add_cppflags -Dmain=plan9_main
-    ;;
-esac
-
-enable frame_thread_encoder
-
-enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
-
-check_deps $CONFIG_LIST       \
-           $CONFIG_EXTRA      \
-           $HAVE_LIST         \
-           $ALL_COMPONENTS    \
-
-enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
-
-
-if test $target_os = "haiku"; then
-    disable memalign
-    disable posix_memalign
-fi
-
-! enabled_any memalign posix_memalign aligned_malloc &&
-    enabled_any $need_memalign && enable memalign_hack
-
-# add_dep lib dep
-# -> enable ${lib}_deps_${dep}
-# -> add $dep to ${lib}_deps only once
-add_dep() {
-    lib=$1
-    dep=$2
-    enabled "${lib}_deps_${dep}" && return 0
-    enable  "${lib}_deps_${dep}"
-    prepend "${lib}_deps" $dep
-}
-
-# merge deps lib components
-# merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
-merge_deps() {
-    lib=$1
-    shift
-    for comp in $*; do
-        enabled $comp || continue
-        eval "dep=\"\$${comp}_deps\""
-        for d in $dep; do
-            add_dep $lib $d
-        done
-    done
-}
-
-merge_deps libavfilter $FILTER_LIST
-
-echo "install prefix            $prefix"
-echo "source path               $source_path"
-echo "C compiler                $cc"
-echo "C library                 $libc_type"
-if test "$host_cc" != "$cc"; then
-    echo "host C compiler           $host_cc"
-    echo "host C library            $host_libc_type"
-fi
-echo "ARCH                      $arch ($cpu)"
-if test "$build_suffix" != ""; then
-    echo "build suffix              $build_suffix"
-fi
-if test "$progs_suffix" != ""; then
-    echo "progs suffix              $progs_suffix"
-fi
-if test "$extra_version" != ""; then
-    echo "version string suffix     $extra_version"
-fi
-echo "big-endian                ${bigendian-no}"
-echo "runtime cpu detection     ${runtime_cpudetect-no}"
-if enabled x86; then
-    echo "${yasmexe}                      ${yasm-no}"
-    echo "MMX enabled               ${mmx-no}"
-    echo "MMXEXT enabled            ${mmxext-no}"
-    echo "3DNow! enabled            ${amd3dnow-no}"
-    echo "3DNow! extended enabled   ${amd3dnowext-no}"
-    echo "SSE enabled               ${sse-no}"
-    echo "SSSE3 enabled             ${ssse3-no}"
-    echo "AVX enabled               ${avx-no}"
-    echo "FMA4 enabled              ${fma4-no}"
-    echo "i686 features enabled     ${i686-no}"
-    echo "CMOV is fast              ${fast_cmov-no}"
-    echo "EBX available             ${ebx_available-no}"
-    echo "EBP available             ${ebp_available-no}"
-fi
-if enabled arm; then
-    echo "ARMv5TE enabled           ${armv5te-no}"
-    echo "ARMv6 enabled             ${armv6-no}"
-    echo "ARMv6T2 enabled           ${armv6t2-no}"
-    echo "VFP enabled               ${vfp-no}"
-    echo "NEON enabled              ${neon-no}"
-    echo "THUMB enabled             ${thumb-no}"
-fi
-if enabled mips; then
-    echo "MIPS FPU enabled          ${mipsfpu-no}"
-    echo "MIPS32R2 enabled          ${mips32r2-no}"
-    echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
-    echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
-fi
-if enabled ppc; then
-    echo "AltiVec enabled           ${altivec-no}"
-    echo "PPC 4xx optimizations     ${ppc4xx-no}"
-    echo "dcbzl available           ${dcbzl-no}"
-fi
-if enabled sparc; then
-    echo "VIS enabled               ${vis-no}"
-fi
-echo "debug symbols             ${debug-no}"
-echo "strip symbols             ${stripping-no}"
-echo "optimize for size         ${small-no}"
-echo "optimizations             ${optimizations-no}"
-echo "static                    ${static-no}"
-echo "shared                    ${shared-no}"
-echo "postprocessing support    ${postproc-no}"
-echo "new filter support        ${avfilter-no}"
-echo "network support           ${network-no}"
-echo "threading support         ${thread_type-no}"
-echo "safe bitstream reader     ${safe_bitstream_reader-no}"
-echo "SDL support               ${sdl-no}"
-echo "opencl enabled            ${opencl-no}"
-echo "libzvbi enabled           ${libzvbi-no}"
-echo "texi2html enabled         ${texi2html-no}"
-echo "perl enabled              ${perl-no}"
-echo "pod2man enabled           ${pod2man-no}"
-echo "makeinfo enabled          ${makeinfo-no}"
-test -n "$random_seed" &&
-    echo "random seed               ${random_seed}"
-echo
-
-echo "External libraries:"
-print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
-echo
-
-for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
-    echo "Enabled ${type}s:"
-    eval list=\$$(toupper $type)_LIST
-    print_enabled '_*' $list | print_3_columns
-    echo
-done
-
-license="LGPL version 2.1 or later"
-if enabled nonfree; then
-    license="nonfree and unredistributable"
-elif enabled gplv3; then
-    license="GPL version 3 or later"
-elif enabled lgplv3; then
-    license="LGPL version 3 or later"
-elif enabled gpl; then
-    license="GPL version 2 or later"
-fi
-
-echo "License: $license"
-
-echo "Creating config.mak, config.h, and doc/config.texi..."
-
-test -e Makefile || echo "include $source_path/Makefile" > Makefile
-
-enabled stripping || strip="echo skipping strip"
-
-config_files="$TMPH config.mak doc/config.texi"
-
-cat > config.mak <<EOF
-# Automatically generated by configure - do not modify!
-ifndef FFMPEG_CONFIG_MAK
-FFMPEG_CONFIG_MAK=1
-FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
-prefix=$prefix
-LIBDIR=\$(DESTDIR)$libdir
-SHLIBDIR=\$(DESTDIR)$shlibdir
-INCDIR=\$(DESTDIR)$incdir
-BINDIR=\$(DESTDIR)$bindir
-DATADIR=\$(DESTDIR)$datadir
-DOCDIR=\$(DESTDIR)$docdir
-MANDIR=\$(DESTDIR)$mandir
-SRC_PATH=$source_path
-ifndef MAIN_MAKEFILE
-SRC_PATH:=\$(SRC_PATH:.%=..%)
-endif
-CC_IDENT=$cc_ident
-ARCH=$arch
-CC=$cc
-CXX=$cxx
-AS=$as
-LD=$ld
-DEPCC=$dep_cc
-DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
-DEPAS=$as
-DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
-YASM=$yasmexe
-DEPYASM=$yasmexe
-AR=$ar
-ARFLAGS=$arflags
-AR_O=$ar_o
-RANLIB=$ranlib
-STRIP=$strip
-CP=cp -p
-LN_S=$ln_s
-CPPFLAGS=$CPPFLAGS
-CFLAGS=$CFLAGS
-CXXFLAGS=$CXXFLAGS
-ASFLAGS=$ASFLAGS
-AS_C=$AS_C
-AS_O=$AS_O
-CC_C=$CC_C
-CC_E=$CC_E
-CC_O=$CC_O
-CXX_C=$CXX_C
-CXX_O=$CXX_O
-LD_O=$LD_O
-LD_LIB=$LD_LIB
-LD_PATH=$LD_PATH
-DLLTOOL=$dlltool
-WINDRES=$windres
-DEPWINDRES=$dep_cc
-LDFLAGS=$LDFLAGS
-SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
-ASMSTRIPFLAGS=$ASMSTRIPFLAGS
-YASMFLAGS=$YASMFLAGS
-BUILDSUF=$build_suffix
-PROGSSUF=$progs_suffix
-FULLNAME=$FULLNAME
-LIBPREF=$LIBPREF
-LIBSUF=$LIBSUF
-LIBNAME=$LIBNAME
-SLIBPREF=$SLIBPREF
-SLIBSUF=$SLIBSUF
-EXESUF=$EXESUF
-EXTRA_VERSION=$extra_version
-CCDEP=$CCDEP
-CXXDEP=$CXXDEP
-CCDEP_FLAGS=$CCDEP_FLAGS
-ASDEP=$ASDEP
-ASDEP_FLAGS=$ASDEP_FLAGS
-CC_DEPFLAGS=$CC_DEPFLAGS
-AS_DEPFLAGS=$AS_DEPFLAGS
-HOSTCC=$host_cc
-HOSTLD=$host_ld
-HOSTCFLAGS=$host_cflags
-HOSTCPPFLAGS=$host_cppflags
-HOSTEXESUF=$HOSTEXESUF
-HOSTLDFLAGS=$host_ldflags
-HOSTLIBS=$host_libs
-DEPHOSTCC=$host_cc
-DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
-HOSTCCDEP=$HOSTCCDEP
-HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
-HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
-HOSTCC_C=$HOSTCC_C
-HOSTCC_O=$HOSTCC_O
-HOSTLD_O=$HOSTLD_O
-TARGET_EXEC=$target_exec $target_exec_args
-TARGET_PATH=$target_path
-TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
-LIBS-ffplay=$sdl_libs
-CFLAGS-ffplay=$sdl_cflags
-ZLIB=$($ldflags_filter -lz)
-LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
-EXTRALIBS=$extralibs
-COMPAT_OBJS=$compat_objs
-EXEOBJS=$exeobjs
-INSTALL=$install
-LIBTARGET=${LIBTARGET}
-SLIBNAME=${SLIBNAME}
-SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
-SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
-SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
-SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
-SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
-SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
-SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
-SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
-SAMPLES:=${samples:-\$(FATE_SAMPLES)}
-NOREDZONE_FLAGS=$noredzone_flags
-EOF
-
-get_version(){
-    lcname=lib${1}
-    name=$(toupper $lcname)
-    file=$source_path/$lcname/version.h
-    eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
-    enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
-    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
-    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
-    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
-    eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
-}
-
-map 'get_version $v' $LIBRARY_LIST
-
-cat > $TMPH <<EOF
-/* Automatically generated by configure - do not modify! */
-#ifndef FFMPEG_CONFIG_H
-#define FFMPEG_CONFIG_H
-#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
-#define FFMPEG_LICENSE "$(c_escape $license)"
-#define CONFIG_THIS_YEAR 2013
-#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
-#define AVCONV_DATADIR "$(eval c_escape $datadir)"
-#define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
-#define av_restrict $_restrict
-#define EXTERN_PREFIX "${extern_prefix}"
-#define EXTERN_ASM ${extern_prefix}
-#define BUILDSUF "$build_suffix"
-#define SLIBSUF "$SLIBSUF"
-#define HAVE_MMX2 HAVE_MMXEXT
-EOF
-
-test -n "$assert_level" &&
-    echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
-
-test -n "$malloc_prefix" &&
-    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
-
-if enabled yasm; then
-    append config_files $TMPASM
-    printf '' >$TMPASM
-fi
-
-enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
-
-
-mkdir -p doc
-echo "@c auto-generated by configure" > doc/config.texi
-
-print_config ARCH_   "$config_files" $ARCH_LIST
-print_config HAVE_   "$config_files" $HAVE_LIST
-print_config CONFIG_ "$config_files" $CONFIG_LIST       \
-                                     $CONFIG_EXTRA      \
-                                     $ALL_COMPONENTS    \
-
-echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
-echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
-
-# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
-cp_if_changed $TMPH config.h
-touch .config
-
-enabled yasm && cp_if_changed $TMPASM config.asm
-
-cat > $TMPH <<EOF
-/* Generated by ffconf */
-#ifndef AVUTIL_AVCONFIG_H
-#define AVUTIL_AVCONFIG_H
-EOF
-
-print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
-
-echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
-
-cp_if_changed $TMPH libavutil/avconfig.h
-
-if test -n "$WARNINGS"; then
-    printf "\n$WARNINGS"
-    enabled fatal_warnings && exit 1
-fi
-
-# build pkg-config files
-
-pkgconfig_generate(){
-    name=$1
-    shortname=${name#lib}${build_suffix}
-    comment=$2
-    version=$3
-    libs=$4
-    requires=$5
-    enabled ${name#lib} || return 0
-    mkdir -p $name
-    cat <<EOF > $name/$name${build_suffix}.pc
-prefix=$prefix
-exec_prefix=\${prefix}
-libdir=$libdir
-includedir=$incdir
-
-Name: $name
-Description: $comment
-Version: $version
-Requires: $(enabled shared || echo $requires)
-Requires.private: $(enabled shared && echo $requires)
-Conflicts:
-Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
-Libs.private: $(enabled shared && echo $libs)
-Cflags: -I\${includedir}
-EOF
-
-mkdir -p doc/examples/pc-uninstalled
-includedir=${source_path}
-[ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
-    cat <<EOF > doc/examples/pc-uninstalled/$name.pc
-prefix=
-exec_prefix=
-libdir=\${pcfiledir}/../../../$name
-includedir=${includedir}
-
-Name: $name
-Description: $comment
-Version: $version
-Requires: $requires
-Conflicts:
-Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
-Cflags: -I\${includedir}
-EOF
-}
-
-lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
-enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
-enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
-enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
-enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
-enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
-enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
-lavfi_libs=${lavfi_libs%, }
-
-lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
-enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
-
-pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
-pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
-pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
-pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
-pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
-pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
-pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
-pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
-pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
-
-fix_ffmpeg_remote(){
-    git_remote_from=$1
-    git_remote_to=$2
-    fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
-    if [ "$fixme_remote" != "" ]; then
-        echolog "
-Outdated domain in git config, the official domain for ffmpeg git is since
-November 2011, source.ffmpeg.org, both the old and the new point to the same
-repository and server. To update it enter the following commands:
-"
-        for remote in $fixme_remote; do
-            echolog "git remote set-url $remote $git_remote_to"
-        done
-    fi
-}
-
-if test -f "$source_path/.git/config"; then
-    remote_from=git.videolan.org
-    remote_to=source.ffmpeg.org
-    fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
-    fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
-fi
author	Tim Redfern <tim@eclectronics.org>	2014-02-17 13:36:38 +0000
committer	Tim Redfern <tim@eclectronics.org>	2014-02-17 13:36:38 +0000
commit	22e28216336da876e1fd17f380ce42eaf1446769 (patch)
tree	444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/configure
parent	ae5e8541f6e06e64c28719467cdf366ac57aff31 (diff)