git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-ffmpeg         disable ffmpeg build
 109   --disable-ffplay         disable ffplay build
 110   --disable-ffprobe        disable ffprobe build
 111   --disable-ffserver       disable ffserver build
 112
 113 Documentation options:
 114   --disable-doc            do not build documentation
 115   --disable-htmlpages      do not build HTML documentation pages
 116   --disable-manpages       do not build man documentation pages
 117   --disable-podpages       do not build POD documentation pages
 118   --disable-txtpages       do not build text documentation pages
 119
 120 Component options:
 121   --disable-avdevice       disable libavdevice build
 122   --disable-avcodec        disable libavcodec build
 123   --disable-avformat       disable libavformat build
 124   --disable-avutil         disable libavutil build
 125   --disable-swresample     disable libswresample build
 126   --disable-swscale        disable libswscale build
 127   --disable-postproc       disable libpostproc build
 128   --disable-avfilter       disable libavfilter build
 129   --enable-avresample      enable libavresample build [no]
 130   --disable-pthreads       disable pthreads [auto]
 131   --disable-w32threads     disable Win32 threads [auto]
 132   --disable-os2threads     disable OS/2 threads [auto]
 133   --enable-x11grab         enable X11 grabbing [no]
 134   --disable-network        disable network support [no]
 135   --disable-dct            disable DCT code
 136   --disable-dwt            disable DWT code
 137   --disable-lsp            disable LSP code
 138   --disable-lzo            disable LZO decoder code
 139   --disable-mdct           disable MDCT code
 140   --disable-rdft           disable RDFT code
 141   --disable-fft            disable FFT code
 142   --enable-dxva2           enable DXVA2 code
 143   --enable-vaapi           enable VAAPI code [autodetect]
 144   --enable-vda             enable VDA code   [autodetect]
 145   --enable-vdpau           enable VDPAU code [autodetect]
 146
 147 Individual component options:
 148   --disable-everything     disable all components listed below
 149   --disable-encoder=NAME   disable encoder NAME
 150   --enable-encoder=NAME    enable encoder NAME
 151   --disable-encoders       disable all encoders
 152   --disable-decoder=NAME   disable decoder NAME
 153   --enable-decoder=NAME    enable decoder NAME
 154   --disable-decoders       disable all decoders
 155   --disable-hwaccel=NAME   disable hwaccel NAME
 156   --enable-hwaccel=NAME    enable hwaccel NAME
 157   --disable-hwaccels       disable all hwaccels
 158   --disable-muxer=NAME     disable muxer NAME
 159   --enable-muxer=NAME      enable muxer NAME
 160   --disable-muxers         disable all muxers
 161   --disable-demuxer=NAME   disable demuxer NAME
 162   --enable-demuxer=NAME    enable demuxer NAME
 163   --disable-demuxers       disable all demuxers
 164   --enable-parser=NAME     enable parser NAME
 165   --disable-parser=NAME    disable parser NAME
 166   --disable-parsers        disable all parsers
 167   --enable-bsf=NAME        enable bitstream filter NAME
 168   --disable-bsf=NAME       disable bitstream filter NAME
 169   --disable-bsfs           disable all bitstream filters
 170   --enable-protocol=NAME   enable protocol NAME
 171   --disable-protocol=NAME  disable protocol NAME
 172   --disable-protocols      disable all protocols
 173   --enable-indev=NAME      enable input device NAME
 174   --disable-indev=NAME     disable input device NAME
 175   --disable-indevs         disable input devices
 176   --enable-outdev=NAME     enable output device NAME
 177   --disable-outdev=NAME    disable output device NAME
 178   --disable-outdevs        disable output devices
 179   --disable-devices        disable all devices
 180   --enable-filter=NAME     enable filter NAME
 181   --disable-filter=NAME    disable filter NAME
 182   --disable-filters        disable all filters
 183
 184 External library support:
 185   --enable-avisynth        enable reading of AVISynth script files [no]
 186   --enable-bzlib           enable bzlib [autodetect]
 187   --enable-fontconfig      enable fontconfig
 188   --enable-frei0r          enable frei0r video filtering
 189   --enable-gnutls          enable gnutls [no]
 190   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 191   --enable-libass          enable libass subtitles rendering [no]
 192   --enable-libbluray       enable BluRay reading using libbluray [no]
 193   --enable-libcaca         enable textual display using libcaca
 194   --enable-libcelt         enable CELT decoding via libcelt [no]
 195   --enable-libcdio         enable audio CD grabbing with libcdio
 196   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 197                            and libraw1394 [no]
 198   --enable-libfaac         enable AAC encoding via libfaac [no]
 199   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 200   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 201   --enable-libfreetype     enable libfreetype [no]
 202   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 203   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 204   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 205   --enable-libmodplug      enable ModPlug via libmodplug [no]
 206   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 207   --enable-libnut          enable NUT (de)muxing via libnut,
 208                            native (de)muxer exists [no]
 209   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 210   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 211   --enable-libopencv       enable video filtering via libopencv [no]
 212   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 213   --enable-libopus         enable Opus decoding via libopus [no]
 214   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 215   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 216   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 217   --enable-libsoxr         enable Include libsoxr resampling [no]
 218   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 219   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 220   --enable-libtheora       enable Theora encoding via libtheora [no]
 221   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 222   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 223   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 224   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 225   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 226   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 227                            native implementation exists [no]
 228   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 229   --enable-libx264         enable H.264 encoding via x264 [no]
 230   --enable-libxavs         enable AVS encoding via xavs [no]
 231   --enable-libxvid         enable Xvid encoding via xvidcore,
 232                            native MPEG-4/Xvid encoder exists [no]
 233   --enable-openal          enable OpenAL 1.1 capture support [no]
 234   --enable-openssl         enable openssl [no]
 235   --enable-zlib            enable zlib [autodetect]
 236
 237 Advanced options (experts only):
 238   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 239   --enable-cross-compile   assume a cross-compiler is used
 240   --sysroot=PATH           root of cross-build tree
 241   --sysinclude=PATH        location of cross-build system headers
 242   --target-os=OS           compiler targets OS [$target_os]
 243   --target-exec=CMD        command to run executables on target
 244   --target-path=DIR        path to view of build directory on target
 245   --toolchain=NAME         set tool defaults according to NAME
 246   --nm=NM                  use nm tool NM [$nm_default]
 247   --ar=AR                  use archive tool AR [$ar_default]
 248   --as=AS                  use assembler AS [$as_default]
 249   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 250   --cc=CC                  use C compiler CC [$cc_default]
 251   --cxx=CXX                use C compiler CXX [$cxx_default]
 252   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 253   --ld=LD                  use linker LD [$ld_default]
 254   --host-cc=HOSTCC         use host C compiler HOSTCC
 255   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 256   --host-ld=HOSTLD         use host linker HOSTLD
 257   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 258   --host-libs=HLIBS        use libs HLIBS when linking for host
 259   --host-os=OS             compiler host OS [$target_os]
 260   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 261   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 262   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 263   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 264   --extra-version=STRING   version string suffix []
 265   --optflags=OPTFLAGS      override optimization-related compiler flags
 266   --build-suffix=SUFFIX    library name suffix []
 267   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 268   --progs-suffix=SUFFIX    program name suffix []
 269   --arch=ARCH              select architecture [$arch]
 270   --cpu=CPU                select the minimum required CPU (affects
 271                            instruction selection, may crash on older CPUs)
 272   --enable-pic             build position-independent code
 273   --enable-sram            allow use of on-chip SRAM
 274   --enable-thumb           compile for Thumb instruction set
 275   --disable-symver         disable symbol versioning
 276   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 277   --disable-safe-bitstream-reader
 278                            disable buffer boundary checking in bitreaders
 279                            (faster, but may crash)
 280   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 281   --enable-lto             use link-time optimization
 282
 283 Optimization options (experts only):
 284   --disable-asm            disable all assembler optimizations
 285   --disable-altivec        disable AltiVec optimizations
 286   --disable-amd3dnow       disable 3DNow! optimizations
 287   --disable-amd3dnowext    disable 3DNow! extended optimizations
 288   --disable-mmx            disable MMX optimizations
 289   --disable-mmxext         disable MMXEXT optimizations
 290   --disable-sse            disable SSE optimizations
 291   --disable-sse2           disable SSE2 optimizations
 292   --disable-sse3           disable SSE3 optimizations
 293   --disable-ssse3          disable SSSE3 optimizations
 294   --disable-sse4           disable SSE4 optimizations
 295   --disable-sse42          disable SSE4.2 optimizations
 296   --disable-avx            disable AVX optimizations
 297   --disable-fma4           disable FMA4 optimizations
 298   --disable-armv5te        disable armv5te optimizations
 299   --disable-armv6          disable armv6 optimizations
 300   --disable-armv6t2        disable armv6t2 optimizations
 301   --disable-vfp            disable VFP optimizations
 302   --disable-neon           disable NEON optimizations
 303   --disable-vis            disable VIS optimizations
 304   --disable-inline-asm     disable use of inline assembler
 305   --disable-yasm           disable use of yasm assembler
 306   --disable-mips32r2       disable MIPS32R2 optimizations
 307   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 308   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 309   --disable-mipsfpu        disable floating point MIPS optimizations
 310   --disable-fast-unaligned consider unaligned accesses slow
 311
 312 Developer options (useful when working on FFmpeg itself):
 313   --enable-coverage        build with test coverage instrumentation
 314   --disable-debug          disable debugging symbols
 315   --enable-debug=LEVEL     set the debug level [$debuglevel]
 316   --disable-optimizations  disable compiler optimizations
 317   --enable-extra-warnings  enable more compiler warnings
 318   --disable-stripping      disable stripping of executables and shared libraries
 319   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 320                            2 causes a slowdown at runtime.
 321   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 322   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 323                            leaks and errors, using the specified valgrind binary.
 324                            Cannot be combined with --target-exec
 325   --enable-ftrapv          Trap arithmetic overflows
 326   --samples=PATH           location of test samples for FATE, if not set use
 327                            \$FATE_SAMPLES at make invocation time.
 328   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 329                            should be used only for debugging purposes)
 330   --enable-random          randomly enable/disable components
 331   --disable-random
 332   --enable-random=LIST     randomly enable/disable specific components or
 333   --disable-random=LIST    component groups. LIST is a comma-separated list
 334                            of NAME[:PROB] entries where NAME is a component
 335                            (group) and PROB the probability associated with
 336                            NAME (default 0.5).
 337   --random-seed=VALUE      seed value for --enable/disable-random
 338
 339 NOTE: Object files are built at the place where configure is launched.
 340 EOF
 341   exit 0
 342 }
 343
 344 quotes='""'
 345
 346 log(){
 347     echo "$@" >> $logfile
 348 }
 349
 350 log_file(){
 351     log BEGIN $1
 352     pr -n -t $1 >> $logfile
 353     log END $1
 354 }
 355
 356 echolog(){
 357     log "$@"
 358     echo "$@"
 359 }
 360
 361 warn(){
 362     log "WARNING: $*"
 363     WARNINGS="${WARNINGS}WARNING: $*\n"
 364 }
 365
 366 die(){
 367     echolog "$@"
 368     cat <<EOF
 369
 370 If you think configure made a mistake, make sure you are using the latest
 371 version from Git.  If the latest version fails, report the problem to the
 372 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 373 EOF
 374     if disabled logging; then
 375         cat <<EOF
 376 Rerun configure with logging enabled (do not use --disable-logging), and
 377 include the log this produces with your report.
 378 EOF
 379     else
 380         cat <<EOF
 381 Include the log file "$logfile" produced by configure as this will help
 382 solving the problem.
 383 EOF
 384     fi
 385     exit 1
 386 }
 387
 388 # Avoid locale weirdness, besides we really just want to translate ASCII.
 389 toupper(){
 390     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 391 }
 392
 393 tolower(){
 394     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 395 }
 396
 397 c_escape(){
 398     echo "$*" | sed 's/["\\]/\\\0/g'
 399 }
 400
 401 sh_quote(){
 402     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 403     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 404     echo "$v"
 405 }
 406
 407 cleanws(){
 408     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 409 }
 410
 411 filter(){
 412     pat=$1
 413     shift
 414     for v; do
 415         eval "case $v in $pat) echo $v ;; esac"
 416     done
 417 }
 418
 419 filter_out(){
 420     pat=$1
 421     shift
 422     for v; do
 423         eval "case $v in $pat) ;; *) echo $v ;; esac"
 424     done
 425 }
 426
 427 map(){
 428     m=$1
 429     shift
 430     for v; do eval $m; done
 431 }
 432
 433 add_suffix(){
 434     suffix=$1
 435     shift
 436     for v; do echo ${v}${suffix}; done
 437 }
 438
 439 set_all(){
 440     value=$1
 441     shift
 442     for var in $*; do
 443         eval $var=$value
 444     done
 445 }
 446
 447 set_weak(){
 448     value=$1
 449     shift
 450     for var; do
 451         eval : \${$var:=$value}
 452     done
 453 }
 454
 455 set_safe(){
 456     var=$1
 457     shift
 458     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 459 }
 460
 461 get_safe(){
 462     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 463 }
 464
 465 pushvar(){
 466     for var in $*; do
 467         eval level=\${${var}_level:=0}
 468         eval ${var}_${level}="\$$var"
 469         eval ${var}_level=$(($level+1))
 470     done
 471 }
 472
 473 popvar(){
 474     for var in $*; do
 475         eval level=\${${var}_level:-0}
 476         test $level = 0 && continue
 477         eval level=$(($level-1))
 478         eval $var="\${${var}_${level}}"
 479         eval ${var}_level=$level
 480         eval unset ${var}_${level}
 481     done
 482 }
 483
 484 enable(){
 485     set_all yes $*
 486 }
 487
 488 disable(){
 489     set_all no $*
 490 }
 491
 492 enable_weak(){
 493     set_weak yes $*
 494 }
 495
 496 disable_weak(){
 497     set_weak no $*
 498 }
 499
 500 enable_safe(){
 501     for var; do
 502         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 503     done
 504 }
 505
 506 disable_safe(){
 507     for var; do
 508         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 509     done
 510 }
 511
 512 do_enable_deep(){
 513     for var; do
 514         enabled $var && continue
 515         eval sel="\$${var}_select"
 516         eval sgs="\$${var}_suggest"
 517         pushvar var sgs
 518         enable_deep $sel
 519         popvar sgs
 520         enable_deep_weak $sgs
 521         popvar var
 522     done
 523 }
 524
 525 enable_deep(){
 526     do_enable_deep $*
 527     enable $*
 528 }
 529
 530 enable_deep_weak(){
 531     do_enable_deep $*
 532     enable_weak $*
 533 }
 534
 535 enabled(){
 536     test "${1#!}" = "$1" && op== || op=!=
 537     eval test "x\$${1#!}" $op "xyes"
 538 }
 539
 540 disabled(){
 541     test "${1#!}" = "$1" && op== || op=!=
 542     eval test "x\$${1#!}" $op "xno"
 543 }
 544
 545 enabled_all(){
 546     for opt; do
 547         enabled $opt || return 1
 548     done
 549 }
 550
 551 disabled_all(){
 552     for opt; do
 553         disabled $opt || return 1
 554     done
 555 }
 556
 557 enabled_any(){
 558     for opt; do
 559         enabled $opt && return 0
 560     done
 561 }
 562
 563 disabled_any(){
 564     for opt; do
 565         disabled $opt && return 0
 566     done
 567     return 1
 568 }
 569
 570 set_default(){
 571     for opt; do
 572         eval : \${$opt:=\$${opt}_default}
 573     done
 574 }
 575
 576 is_in(){
 577     value=$1
 578     shift
 579     for var in $*; do
 580         [ $var = $value ] && return 0
 581     done
 582     return 1
 583 }
 584
 585 do_check_deps(){
 586     for cfg; do
 587         cfg="${cfg#!}"
 588         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 589         disabled ${cfg}_checking && continue
 590         enable ${cfg}_checking
 591         append allopts $cfg
 592
 593         eval dep_all="\$${cfg}_deps"
 594         eval dep_any="\$${cfg}_deps_any"
 595         eval dep_sel="\$${cfg}_select"
 596         eval dep_sgs="\$${cfg}_suggest"
 597         eval dep_ifa="\$${cfg}_if"
 598         eval dep_ifn="\$${cfg}_if_any"
 599
 600         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 601         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 602         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 603
 604         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 605         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 606         enabled_all  $dep_all || disable $cfg
 607         enabled_any  $dep_any || disable $cfg
 608         disabled_any $dep_sel && disable $cfg
 609
 610         if enabled $cfg; then
 611             enable_deep $dep_sel
 612             enable_deep_weak $dep_sgs
 613         fi
 614
 615         disable ${cfg}_checking
 616     done
 617 }
 618
 619 check_deps(){
 620     unset allopts
 621
 622     do_check_deps "$@"
 623
 624     for cfg in $allopts; do
 625         enabled $cfg || continue
 626         eval dep_extralibs="\$${cfg}_extralibs"
 627         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 628     done
 629 }
 630
 631 print_config(){
 632     pfx=$1
 633     files=$2
 634     shift 2
 635     map 'eval echo "$v \${$v:-no}"' "$@" |
 636     awk "BEGIN { split(\"$files\", files) }
 637         {
 638             c = \"$pfx\" toupper(\$1);
 639             v = \$2;
 640             sub(/yes/, 1, v);
 641             sub(/no/,  0, v);
 642             for (f in files) {
 643                 file = files[f];
 644                 if (file ~ /\\.h\$/) {
 645                     printf(\"#define %s %d\\n\", c, v) >>file;
 646                 } else if (file ~ /\\.asm\$/) {
 647                     printf(\"%%define %s %d\\n\", c, v) >>file;
 648                 } else if (file ~ /\\.mak\$/) {
 649                     n = -v ? \"\" : \"!\";
 650                     printf(\"%s%s=yes\\n\", n, c) >>file;
 651                 }
 652             }
 653         }"
 654 }
 655
 656 print_enabled(){
 657     suf=$1
 658     shift
 659     for v; do
 660         enabled $v && printf "%s\n" ${v%$suf};
 661     done
 662 }
 663
 664 append(){
 665     var=$1
 666     shift
 667     eval "$var=\"\$$var $*\""
 668 }
 669
 670 prepend(){
 671     var=$1
 672     shift
 673     eval "$var=\"$* \$$var\""
 674 }
 675
 676 add_cppflags(){
 677     append CPPFLAGS "$@"
 678 }
 679
 680 add_cflags(){
 681     append CFLAGS $($cflags_filter "$@")
 682 }
 683
 684 add_cxxflags(){
 685     append CXXFLAGS $($cflags_filter "$@")
 686 }
 687
 688 add_asflags(){
 689     append ASFLAGS $($asflags_filter "$@")
 690 }
 691
 692 add_ldflags(){
 693     append LDFLAGS $($ldflags_filter "$@")
 694 }
 695
 696 add_extralibs(){
 697     prepend extralibs $($ldflags_filter "$@")
 698 }
 699
 700 add_host_cflags(){
 701     append host_cflags $($host_cflags_filter "$@")
 702 }
 703
 704 add_host_ldflags(){
 705     append host_ldflags $($host_ldflags_filter "$@")
 706 }
 707
 708 add_compat(){
 709     append compat_objs $1
 710     shift
 711     map 'add_cppflags -D$v' "$@"
 712 }
 713
 714 check_cmd(){
 715     log "$@"
 716     "$@" >> $logfile 2>&1
 717 }
 718
 719 cc_o(){
 720     eval printf '%s\\n' $CC_O
 721 }
 722
 723 cc_e(){
 724     eval printf '%s\\n' $CC_E
 725 }
 726
 727 check_cc(){
 728     log check_cc "$@"
 729     cat > $TMPC
 730     log_file $TMPC
 731     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 732 }
 733
 734 check_cxx(){
 735     log check_cxx "$@"
 736     cat > $TMPCPP
 737     log_file $TMPCPP
 738     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 739 }
 740
 741 check_cpp(){
 742     log check_cpp "$@"
 743     cat > $TMPC
 744     log_file $TMPC
 745     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 746 }
 747
 748 as_o(){
 749     eval printf '%s\\n' $AS_O
 750 }
 751
 752 check_as(){
 753     log check_as "$@"
 754     cat > $TMPS
 755     log_file $TMPS
 756     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 757 }
 758
 759 check_inline_asm(){
 760     log check_inline_asm "$@"
 761     name="$1"
 762     code="$2"
 763     shift 2
 764     disable $name
 765     check_cc "$@" <<EOF && enable $name
 766 void foo(void){ __asm__ volatile($code); }
 767 EOF
 768 }
 769
 770 check_insn(){
 771     log check_insn "$@"
 772     check_inline_asm ${1}_inline "\"$2\""
 773     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 774 }
 775
 776 check_yasm(){
 777     log check_yasm "$@"
 778     echo "$1" > $TMPS
 779     log_file $TMPS
 780     shift 1
 781     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 782 }
 783
 784 ld_o(){
 785     eval printf '%s\\n' $LD_O
 786 }
 787
 788 check_ld(){
 789     log check_ld "$@"
 790     type=$1
 791     shift 1
 792     flags=$(filter_out '-l*' $@)
 793     libs=$(filter '-l*' $@)
 794     check_$type $($cflags_filter $flags) || return
 795     flags=$($ldflags_filter $flags)
 796     libs=$($ldflags_filter $libs)
 797     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 798 }
 799
 800 check_code(){
 801     log check_code "$@"
 802     check=$1
 803     headers=$2
 804     code=$3
 805     shift 3
 806     {
 807         for hdr in $headers; do
 808             echo "#include <$hdr>"
 809         done
 810         echo "int main(void) { $code; return 0; }"
 811     } | check_$check "$@"
 812 }
 813
 814 check_cppflags(){
 815     log check_cppflags "$@"
 816     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 817 int x;
 818 EOF
 819 }
 820
 821 check_cflags(){
 822     log check_cflags "$@"
 823     set -- $($cflags_filter "$@")
 824     check_cc "$@" <<EOF && append CFLAGS "$@"
 825 int x;
 826 EOF
 827 }
 828
 829 check_cxxflags(){
 830     log check_cxxflags "$@"
 831     set -- $($cflags_filter "$@")
 832     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 833 int x;
 834 EOF
 835 }
 836
 837 test_ldflags(){
 838     log test_ldflags "$@"
 839     check_ld "cc" "$@" <<EOF
 840 int main(void){ return 0; }
 841 EOF
 842 }
 843
 844 check_ldflags(){
 845     log check_ldflags "$@"
 846     test_ldflags "$@" && add_ldflags "$@"
 847 }
 848
 849 check_header(){
 850     log check_header "$@"
 851     header=$1
 852     shift
 853     disable_safe $header
 854     check_cpp "$@" <<EOF && enable_safe $header
 855 #include <$header>
 856 int x;
 857 EOF
 858 }
 859
 860 check_func(){
 861     log check_func "$@"
 862     func=$1
 863     shift
 864     disable $func
 865     check_ld "cc" "$@" <<EOF && enable $func
 866 extern int $func();
 867 int main(void){ $func(); }
 868 EOF
 869 }
 870
 871 check_mathfunc(){
 872     log check_mathfunc "$@"
 873     func=$1
 874     narg=$2
 875     shift 2
 876     test $narg = 2 && args="f, g" || args="f"
 877     disable $func
 878     check_ld "cc" "$@" <<EOF && enable $func
 879 #include <math.h>
 880 float foo(float f, float g) { return $func($args); }
 881 int main(void){ return (int) foo; }
 882 EOF
 883 }
 884
 885 check_func_headers(){
 886     log check_func_headers "$@"
 887     headers=$1
 888     funcs=$2
 889     shift 2
 890     {
 891         for hdr in $headers; do
 892             echo "#include <$hdr>"
 893         done
 894         for func in $funcs; do
 895             echo "long check_$func(void) { return (long) $func; }"
 896         done
 897         echo "int main(void) { return 0; }"
 898     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 899 }
 900
 901 check_class_headers_cpp(){
 902     log check_class_headers_cpp "$@"
 903     headers=$1
 904     classes=$2
 905     shift 2
 906     {
 907         for hdr in $headers; do
 908             echo "#include <$hdr>"
 909         done
 910         echo "int main(void) { "
 911         i=1
 912         for class in $classes; do
 913             echo "$class obj$i;"
 914             i=$(expr $i + 1)
 915         done
 916         echo "return 0; }"
 917     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 918 }
 919
 920 check_cpp_condition(){
 921     log check_cpp_condition "$@"
 922     header=$1
 923     condition=$2
 924     shift 2
 925     check_cpp "$@" <<EOF
 926 #include <$header>
 927 #if !($condition)
 928 #error "unsatisfied condition: $condition"
 929 #endif
 930 EOF
 931 }
 932
 933 check_lib(){
 934     log check_lib "$@"
 935     header="$1"
 936     func="$2"
 937     shift 2
 938     check_header $header && check_func $func "$@" && add_extralibs "$@"
 939 }
 940
 941 check_lib2(){
 942     log check_lib2 "$@"
 943     headers="$1"
 944     funcs="$2"
 945     shift 2
 946     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 947 }
 948
 949 check_lib_cpp(){
 950     log check_lib_cpp "$@"
 951     headers="$1"
 952     classes="$2"
 953     shift 2
 954     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 955 }
 956
 957 check_pkg_config(){
 958     log check_pkg_config "$@"
 959     pkg="$1"
 960     headers="$2"
 961     funcs="$3"
 962     shift 3
 963     $pkg_config --exists $pkg 2>/dev/null || return
 964     pkg_cflags=$($pkg_config --cflags $pkg)
 965     pkg_libs=$($pkg_config --libs $pkg)
 966     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 967         set_safe ${pkg}_cflags $pkg_cflags   &&
 968         set_safe ${pkg}_libs   $pkg_libs
 969 }
 970
 971 check_exec(){
 972     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 973 }
 974
 975 check_exec_crash(){
 976     code=$(cat)
 977
 978     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 979     # are safe but may not be available everywhere.  Thus we use
 980     # raise(SIGTERM) instead.  The check is run in a subshell so we
 981     # can redirect the "Terminated" message from the shell.  SIGBUS
 982     # is not defined by standard C so it is used conditionally.
 983
 984     (check_exec "$@") >> $logfile 2>&1 <<EOF
 985 #include <signal.h>
 986 static void sighandler(int sig){
 987     raise(SIGTERM);
 988 }
 989 int func(void){
 990     $code
 991 }
 992 int (*func_ptr)(void) = func;
 993 int main(void){
 994     signal(SIGILL, sighandler);
 995     signal(SIGFPE, sighandler);
 996     signal(SIGSEGV, sighandler);
 997 #ifdef SIGBUS
 998     signal(SIGBUS, sighandler);
 999 #endif
1000     return func_ptr();
1001 }
1002 EOF
1003 }
1004
1005 check_type(){
1006     log check_type "$@"
1007     headers=$1
1008     type=$2
1009     shift 2
1010     disable_safe "$type"
1011     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1012 }
1013
1014 check_struct(){
1015     log check_type "$@"
1016     headers=$1
1017     struct=$2
1018     member=$3
1019     shift 3
1020     disable_safe "${struct}_${member}"
1021     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1022         enable_safe "${struct}_${member}"
1023 }
1024
1025 require(){
1026     name="$1"
1027     header="$2"
1028     func="$3"
1029     shift 3
1030     check_lib $header $func "$@" || die "ERROR: $name not found"
1031 }
1032
1033 require2(){
1034     name="$1"
1035     headers="$2"
1036     func="$3"
1037     shift 3
1038     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1039 }
1040
1041 require_cpp(){
1042     name="$1"
1043     headers="$2"
1044     classes="$3"
1045     shift 3
1046     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1047 }
1048
1049 require_pkg_config(){
1050     pkg="$1"
1051     check_pkg_config "$@" || die "ERROR: $pkg not found"
1052     add_cflags    $(get_safe ${pkg}_cflags)
1053     add_extralibs $(get_safe ${pkg}_libs)
1054 }
1055
1056 hostcc_o(){
1057     eval printf '%s\\n' $HOSTCC_O
1058 }
1059
1060 check_host_cc(){
1061     log check_host_cc "$@"
1062     cat > $TMPC
1063     log_file $TMPC
1064     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1065 }
1066
1067 check_host_cflags(){
1068     log check_host_cflags "$@"
1069     set -- $($host_cflags_filter "$@")
1070     check_host_cc "$@" <<EOF && append host_cflags "$@"
1071 int x;
1072 EOF
1073 }
1074
1075 apply(){
1076     file=$1
1077     shift
1078     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1079 }
1080
1081 cp_if_changed(){
1082     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1083     mkdir -p "$(dirname $2)"
1084     $cp_f "$1" "$2"
1085 }
1086
1087 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1088 # system-dependent things.
1089
1090 COMPONENT_LIST="
1091     bsfs
1092     decoders
1093     demuxers
1094     encoders
1095     filters
1096     hwaccels
1097     indevs
1098     muxers
1099     outdevs
1100     parsers
1101     protocols
1102 "
1103
1104 DOCUMENT_LIST="
1105     doc
1106     htmlpages
1107     manpages
1108     podpages
1109     txtpages
1110 "
1111
1112 LIBRARY_LIST="
1113     avcodec
1114     avdevice
1115     avfilter
1116     avformat
1117     avresample
1118     avutil
1119     postproc
1120     swresample
1121     swscale
1122 "
1123
1124 PROGRAM_LIST="
1125     ffplay
1126     ffprobe
1127     ffserver
1128     ffmpeg
1129 "
1130
1131 CONFIG_LIST="
1132     $COMPONENT_LIST
1133     $DOCUMENT_LIST
1134     $LIBRARY_LIST
1135     $PROGRAM_LIST
1136     avisynth
1137     bzlib
1138     crystalhd
1139     dct
1140     dwt
1141     dxva2
1142     fast_unaligned
1143     fft
1144     fontconfig
1145     frei0r
1146     ftrapv
1147     gnutls
1148     gpl
1149     gray
1150     hardcoded_tables
1151     incompatible_fork_abi
1152     libaacplus
1153     libass
1154     libbluray
1155     libcaca
1156     libcdio
1157     libcelt
1158     libdc1394
1159     libfaac
1160     libfdk_aac
1161     libflite
1162     libfreetype
1163     libgsm
1164     libiec61883
1165     libilbc
1166     libmodplug
1167     libmp3lame
1168     libnut
1169     libopencore_amrnb
1170     libopencore_amrwb
1171     libopencv
1172     libopenjpeg
1173     libopus
1174     libpulse
1175     librtmp
1176     libschroedinger
1177     libsoxr
1178     libspeex
1179     libstagefright_h264
1180     libtheora
1181     libtwolame
1182     libutvideo
1183     libv4l2
1184     libvo_aacenc
1185     libvo_amrwbenc
1186     libvorbis
1187     libvpx
1188     libx264
1189     libxavs
1190     libxvid
1191     lsp
1192     lzo
1193     mdct
1194     memalign_hack
1195     memory_poisoning
1196     network
1197     nonfree
1198     openal
1199     openssl
1200     pic
1201     rdft
1202     runtime_cpudetect
1203     safe_bitstream_reader
1204     shared
1205     small
1206     sram
1207     static
1208     swscale_alpha
1209     thumb
1210     vaapi
1211     vda
1212     vdpau
1213     version3
1214     xmm_clobber_test
1215     x11grab
1216     zlib
1217 "
1218
1219 THREADS_LIST='
1220     pthreads
1221     w32threads
1222     os2threads
1223 '
1224
1225 ARCH_LIST='
1226     aarch64
1227     alpha
1228     arm
1229     avr32
1230     avr32_ap
1231     avr32_uc
1232     bfin
1233     ia64
1234     m68k
1235     mips
1236     mips64
1237     parisc
1238     ppc
1239     ppc64
1240     s390
1241     sh4
1242     sparc
1243     sparc64
1244     tilegx
1245     tilepro
1246     tomi
1247     x86
1248     x86_32
1249     x86_64
1250 '
1251
1252 ARCH_EXT_LIST_ARM='
1253     armv5te
1254     armv6
1255     armv6t2
1256     neon
1257     vfp
1258     vfpv3
1259 '
1260
1261 ARCH_EXT_LIST_X86='
1262     amd3dnow
1263     amd3dnowext
1264     avx
1265     fma4
1266     mmx
1267     mmxext
1268     sse
1269     sse2
1270     sse3
1271     sse4
1272     sse42
1273     ssse3
1274 '
1275
1276 ARCH_EXT_LIST="
1277     $ARCH_EXT_LIST_ARM
1278     $ARCH_EXT_LIST_X86
1279     altivec
1280     ppc4xx
1281     vis
1282     mipsfpu
1283     mips32r2
1284     mipsdspr1
1285     mipsdspr2
1286 "
1287
1288 HAVE_LIST_CMDLINE='
1289     inline_asm
1290     symver
1291     yasm
1292 '
1293
1294 HAVE_LIST_PUB='
1295     bigendian
1296     fast_unaligned
1297     incompatible_fork_abi
1298 '
1299
1300 MATH_FUNCS="
1301     atanf
1302     atan2f
1303     cbrtf
1304     cosf
1305     exp2
1306     exp2f
1307     expf
1308     isinf
1309     isnan
1310     ldexpf
1311     llrint
1312     llrintf
1313     log2
1314     log2f
1315     log10f
1316     lrint
1317     lrintf
1318     powf
1319     rint
1320     round
1321     roundf
1322     sinf
1323     trunc
1324     truncf
1325 "
1326
1327 HAVE_LIST="
1328     $ARCH_EXT_LIST
1329     $(add_suffix _external $ARCH_EXT_LIST)
1330     $(add_suffix _inline   $ARCH_EXT_LIST)
1331     $HAVE_LIST_CMDLINE
1332     $HAVE_LIST_PUB
1333     $THREADS_LIST
1334     $MATH_FUNCS
1335     access
1336     aligned_malloc
1337     aligned_stack
1338     alsa_asoundlib_h
1339     altivec_h
1340     arpa_inet_h
1341     asm_mod_q
1342     asm_mod_y
1343     asm_types_h
1344     attribute_may_alias
1345     attribute_packed
1346     clock_gettime
1347     closesocket
1348     cmov
1349     CommandLineToArgvW
1350     cpunop
1351     CryptGenRandom
1352     dcbzl
1353     dev_bktr_ioctl_bt848_h
1354     dev_bktr_ioctl_meteor_h
1355     dev_ic_bt8xx_h
1356     dev_video_bktr_ioctl_bt848_h
1357     dev_video_meteor_ioctl_meteor_h
1358     direct_h
1359     dlfcn_h
1360     dlopen
1361     dos_paths
1362     dxva_h
1363     ebp_available
1364     ebx_available
1365     fast_64bit
1366     fast_clz
1367     fast_cmov
1368     fcntl
1369     fork
1370     getaddrinfo
1371     gethrtime
1372     getopt
1373     GetProcessAffinityMask
1374     GetProcessMemoryInfo
1375     GetProcessTimes
1376     GetSystemTimeAsFileTime
1377     getrusage
1378     getservbyport
1379     gettimeofday
1380     glob
1381     gnu_as
1382     ibm_asm
1383     inet_aton
1384     io_h
1385     isatty
1386     jack_port_get_latency_range
1387     kbhit
1388     ldbrx
1389     libdc1394_1
1390     libdc1394_2
1391     local_aligned_16
1392     local_aligned_8
1393     localtime_r
1394     loongson
1395     lzo1x_999_compress
1396     machine_ioctl_bt848_h
1397     machine_ioctl_meteor_h
1398     makeinfo
1399     malloc_h
1400     MapViewOfFile
1401     memalign
1402     mkstemp
1403     mm_empty
1404     mmap
1405     mprotect
1406     msvcrt
1407     nanosleep
1408     openjpeg_1_5_openjpeg_h
1409     PeekNamedPipe
1410     perl
1411     pod2man
1412     poll_h
1413     posix_memalign
1414     pthread_cancel
1415     rdtsc
1416     rsync_contimeout
1417     sched_getaffinity
1418     sdl
1419     sdl_video_size
1420     SetConsoleTextAttribute
1421     setmode
1422     setrlimit
1423     Sleep
1424     sndio_h
1425     socklen_t
1426     soundcard_h
1427     strerror_r
1428     struct_addrinfo
1429     struct_group_source_req
1430     struct_ip_mreq_source
1431     struct_ipv6_mreq
1432     struct_pollfd
1433     struct_rusage_ru_maxrss
1434     struct_sctp_event_subscribe
1435     struct_sockaddr_in6
1436     struct_sockaddr_sa_len
1437     struct_sockaddr_storage
1438     struct_v4l2_frmivalenum_discrete
1439     symver_asm_label
1440     symver_gnu_asm
1441     sysconf
1442     sysctl
1443     sys_mman_h
1444     sys_param_h
1445     sys_resource_h
1446     sys_select_h
1447     sys_soundcard_h
1448     sys_time_h
1449     sys_videoio_h
1450     termios_h
1451     texi2html
1452     threads
1453     unistd_h
1454     usleep
1455     vfp_args
1456     VirtualAlloc
1457     windows_h
1458     winsock2_h
1459     xform_asm
1460     xmm_clobbers
1461 "
1462
1463 # options emitted with CONFIG_ prefix but not available on the command line
1464 CONFIG_EXTRA="
1465     aandcttables
1466     ac3dsp
1467     error_resilience
1468     gcrypt
1469     golomb
1470     gplv3
1471     h264chroma
1472     h264dsp
1473     h264pred
1474     h264qpel
1475     huffman
1476     lgplv3
1477     lpc
1478     mpegaudio
1479     mpegaudiodsp
1480     mpegvideo
1481     mpegvideoenc
1482     nettle
1483     rangecoder
1484     rtpdec
1485     rtpenc_chain
1486     sinewin
1487     videodsp
1488     vp3dsp
1489 "
1490
1491 CMDLINE_SELECT="
1492     $ARCH_EXT_LIST
1493     $CONFIG_LIST
1494     $HAVE_LIST_CMDLINE
1495     $THREADS_LIST
1496     asm
1497     coverage
1498     cross_compile
1499     debug
1500     extra_warnings
1501     logging
1502     lto
1503     optimizations
1504     stripping
1505 "
1506
1507 PATHS_LIST='
1508     bindir
1509     datadir
1510     incdir
1511     libdir
1512     mandir
1513     prefix
1514     shlibdir
1515 '
1516
1517 CMDLINE_SET="
1518     $PATHS_LIST
1519     ar
1520     arch
1521     as
1522     assert_level
1523     build_suffix
1524     cc
1525     cpu
1526     cross_prefix
1527     cxx
1528     dep_cc
1529     extra_version
1530     host_cc
1531     host_cflags
1532     host_ld
1533     host_ldflags
1534     host_libs
1535     host_os
1536     install
1537     ld
1538     logfile
1539     malloc_prefix
1540     nm
1541     optflags
1542     pkg_config
1543     progs_suffix
1544     random_seed
1545     samples
1546     strip
1547     sysinclude
1548     sysroot
1549     target_exec
1550     target_os
1551     target_path
1552     toolchain
1553     valgrind
1554     yasmexe
1555 "
1556
1557 CMDLINE_APPEND="
1558     extra_cflags
1559     extra_cxxflags
1560 "
1561
1562 # code dependency declarations
1563
1564 # architecture extensions
1565
1566 armv5te_deps="arm"
1567 armv6_deps="arm"
1568 armv6t2_deps="arm"
1569 neon_deps="arm"
1570 vfp_deps="arm"
1571 vfpv3_deps="vfp"
1572
1573 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1574
1575 mipsfpu_deps="mips"
1576 mips32r2_deps="mips"
1577 mipsdspr1_deps="mips"
1578 mipsdspr2_deps="mips"
1579
1580 altivec_deps="ppc"
1581 ppc4xx_deps="ppc"
1582
1583 vis_deps="sparc"
1584
1585 x86_64_suggest="cmov fast_cmov"
1586
1587 amd3dnow_deps="mmx"
1588 amd3dnowext_deps="amd3dnow"
1589 mmx_deps="x86"
1590 mmxext_deps="mmx"
1591 sse_deps="mmxext"
1592 sse2_deps="sse"
1593 sse3_deps="sse2"
1594 ssse3_deps="sse3"
1595 sse4_deps="ssse3"
1596 sse42_deps="sse4"
1597 avx_deps="sse42"
1598 fma4_deps="avx"
1599
1600 mmx_external_deps="yasm"
1601 mmx_inline_deps="inline_asm"
1602 mmx_suggest="mmx_external mmx_inline"
1603
1604 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1605     eval dep=\$${ext}_deps
1606     eval ${ext}_external_deps='"${dep}_external"'
1607     eval ${ext}_inline_deps='"${dep}_inline"'
1608     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1609 done
1610
1611 aligned_stack_if_any="ppc x86"
1612 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1613 fast_clz_if_any="alpha avr32 mips ppc x86"
1614 fast_unaligned_if_any="ppc x86"
1615
1616 inline_asm_deps="!tms470"
1617 need_memalign="altivec neon sse"
1618
1619 symver_if_any="symver_asm_label symver_gnu_asm"
1620
1621 log2_deps="!msvcrt"
1622
1623 # subsystems
1624 dct_select="rdft"
1625 mdct_select="fft"
1626 rdft_select="fft"
1627 mpegaudio_select="mpegaudiodsp"
1628 mpegaudiodsp_select="dct"
1629 mpegvideo_select="videodsp"
1630 mpegvideoenc_select="mpegvideo"
1631
1632 # decoders / encoders
1633 aac_decoder_select="mdct sinewin"
1634 aac_encoder_select="mdct sinewin"
1635 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1636 ac3_decoder_select="mdct ac3dsp ac3_parser"
1637 ac3_encoder_select="mdct ac3dsp"
1638 ac3_fixed_encoder_select="mdct ac3dsp"
1639 alac_encoder_select="lpc"
1640 amrnb_decoder_select="lsp"
1641 amrwb_decoder_select="lsp"
1642 amv_encoder_select="aandcttables"
1643 atrac1_decoder_select="mdct sinewin"
1644 atrac3_decoder_select="mdct"
1645 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1646 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1647 cavs_decoder_select="golomb mpegvideo"
1648 comfortnoise_encoder_select="lpc"
1649 cook_decoder_select="mdct sinewin"
1650 cscd_decoder_select="lzo"
1651 cscd_decoder_suggest="zlib"
1652 dca_decoder_select="mdct"
1653 dirac_decoder_select="dwt golomb videodsp"
1654 dnxhd_encoder_select="aandcttables mpegvideoenc"
1655 dxa_decoder_select="zlib"
1656 eac3_decoder_select="ac3_decoder"
1657 eac3_encoder_select="ac3_encoder"
1658 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1659 eatgq_decoder_select="aandcttables"
1660 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1661 exr_decoder_select="zlib"
1662 ffv1_decoder_select="golomb rangecoder"
1663 ffv1_encoder_select="rangecoder"
1664 ffvhuff_encoder_select="huffman"
1665 flac_decoder_select="golomb"
1666 flac_encoder_select="golomb lpc"
1667 flashsv_decoder_select="zlib"
1668 flashsv_encoder_select="zlib"
1669 flashsv2_encoder_select="zlib"
1670 flashsv2_decoder_select="zlib"
1671 flv_decoder_select="h263_decoder"
1672 flv_encoder_select="h263_encoder"
1673 fraps_decoder_select="huffman"
1674 h261_decoder_select="error_resilience mpegvideo"
1675 h261_encoder_select="aandcttables mpegvideoenc"
1676 h263_decoder_select="error_resilience h263_parser mpegvideo"
1677 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1678 h263i_decoder_select="h263_decoder"
1679 h263p_encoder_select="h263_encoder"
1680 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1681 huffyuv_encoder_select="huffman"
1682 iac_decoder_select="fft mdct sinewin"
1683 imc_decoder_select="fft mdct sinewin"
1684 jpegls_decoder_select="golomb"
1685 jpegls_encoder_select="golomb"
1686 ljpeg_encoder_select="aandcttables mpegvideoenc"
1687 loco_decoder_select="golomb"
1688 mdec_decoder_select="error_resilience mpegvideo"
1689 mjpeg_encoder_select="aandcttables mpegvideoenc"
1690 mlp_decoder_select="mlp_parser"
1691 mp1_decoder_select="mpegaudio"
1692 mp1float_decoder_select="mpegaudio"
1693 mp2_decoder_select="mpegaudio"
1694 mp2float_decoder_select="mpegaudio"
1695 mp3_decoder_select="mpegaudio"
1696 mp3adu_decoder_select="mpegaudio"
1697 mp3adufloat_decoder_select="mpegaudio"
1698 mp3float_decoder_select="mpegaudio"
1699 mp3on4_decoder_select="mpegaudio"
1700 mp3on4float_decoder_select="mpegaudio"
1701 mpc7_decoder_select="mpegaudiodsp"
1702 mpc8_decoder_select="mpegaudiodsp"
1703 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1704 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1705 mpeg1video_decoder_select="error_resilience mpegvideo"
1706 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1707 mpeg2video_decoder_select="error_resilience mpegvideo"
1708 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1709 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1710 mpeg4_encoder_select="h263_encoder"
1711 msmpeg4v1_decoder_select="h263_decoder"
1712 msmpeg4v1_encoder_select="h263_encoder"
1713 msmpeg4v2_decoder_select="h263_decoder"
1714 msmpeg4v2_encoder_select="h263_encoder"
1715 msmpeg4v3_decoder_select="h263_decoder"
1716 msmpeg4v3_encoder_select="h263_encoder"
1717 mss2_decoder_select="vc1_decoder"
1718 nellymoser_decoder_select="mdct sinewin"
1719 nellymoser_encoder_select="mdct sinewin"
1720 nuv_decoder_select="lzo"
1721 png_decoder_select="zlib"
1722 png_encoder_select="zlib"
1723 qcelp_decoder_select="lsp"
1724 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1725 ra_144_encoder_select="lpc"
1726 ralf_decoder_select="golomb"
1727 rv10_decoder_select="h263_decoder"
1728 rv10_encoder_select="h263_encoder"
1729 rv20_decoder_select="h263_decoder"
1730 rv20_encoder_select="h263_encoder"
1731 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1732 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1733 shorten_decoder_select="golomb"
1734 sipr_decoder_select="lsp"
1735 snow_decoder_select="dwt rangecoder"
1736 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1737 sonic_decoder_select="golomb"
1738 sonic_encoder_select="golomb"
1739 sonic_ls_encoder_select="golomb"
1740 svq1_decoder_select="error_resilience mpegvideo"
1741 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1742 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1743 svq3_decoder_suggest="zlib"
1744 theora_decoder_select="vp3_decoder"
1745 tiff_decoder_suggest="zlib"
1746 tiff_encoder_suggest="zlib"
1747 truehd_decoder_select="mlp_parser"
1748 tscc_decoder_select="zlib"
1749 twinvq_decoder_select="mdct lsp sinewin"
1750 utvideo_encoder_select="huffman"
1751 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1752 vc1image_decoder_select="vc1_decoder"
1753 vorbis_decoder_select="mdct"
1754 vorbis_encoder_select="mdct"
1755 vp3_decoder_select="vp3dsp videodsp"
1756 vp5_decoder_select="vp3dsp videodsp"
1757 vp6_decoder_select="huffman vp3dsp videodsp"
1758 vp6a_decoder_select="vp6_decoder"
1759 vp6f_decoder_select="vp6_decoder"
1760 vp8_decoder_select="h264pred videodsp"
1761 wmapro_decoder_select="mdct sinewin"
1762 wmav1_decoder_select="mdct sinewin"
1763 wmav1_encoder_select="mdct sinewin"
1764 wmav2_decoder_select="mdct sinewin"
1765 wmav2_encoder_select="mdct sinewin"
1766 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1767 wmv1_decoder_select="h263_decoder"
1768 wmv1_encoder_select="h263_encoder"
1769 wmv2_decoder_select="h263_decoder"
1770 wmv2_encoder_select="h263_encoder"
1771 wmv3_decoder_select="vc1_decoder"
1772 wmv3image_decoder_select="wmv3_decoder"
1773 zerocodec_decoder_select="zlib"
1774 zlib_decoder_select="zlib"
1775 zlib_encoder_select="zlib"
1776 zmbv_decoder_select="zlib"
1777 zmbv_encoder_select="zlib"
1778
1779 # hardware accelerators
1780 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1781 vaapi_deps="va_va_h"
1782 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1783 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1784
1785 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1786 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1787 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1788 h264_dxva2_hwaccel_deps="dxva2api_h"
1789 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1790 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1791 h264_vda_decoder_select="vda h264_parser h264_decoder"
1792 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1793 h264_vda_hwaccel_select="vda h264_decoder"
1794 h264_vdpau_decoder_select="vdpau h264_decoder"
1795 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1796 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1797 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1798 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1799 mpeg2_crystalhd_decoder_select="crystalhd"
1800 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1801 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1802 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1803 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1804 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1805 mpeg4_crystalhd_decoder_select="crystalhd"
1806 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1807 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1808 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1809 msmpeg4_crystalhd_decoder_select="crystalhd"
1810 vc1_crystalhd_decoder_select="crystalhd"
1811 vc1_dxva2_hwaccel_deps="dxva2api_h"
1812 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1813 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1814 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1815 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1816 wmv3_crystalhd_decoder_select="crystalhd"
1817 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1818 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1819 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1820 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1821
1822 # parsers
1823 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1824 mpeg4video_parser_select="error_resilience mpegvideo"
1825 mpegvideo_parser_select="error_resilience mpegvideo"
1826 vc1_parser_select="error_resilience mpegvideo"
1827
1828 # external libraries
1829 libaacplus_encoder_deps="libaacplus"
1830 libcelt_decoder_deps="libcelt"
1831 libfaac_encoder_deps="libfaac"
1832 libfdk_aac_encoder_deps="libfdk_aac"
1833 libgsm_decoder_deps="libgsm"
1834 libgsm_encoder_deps="libgsm"
1835 libgsm_ms_decoder_deps="libgsm"
1836 libgsm_ms_encoder_deps="libgsm"
1837 libilbc_decoder_deps="libilbc"
1838 libilbc_encoder_deps="libilbc"
1839 libmodplug_demuxer_deps="libmodplug"
1840 libmp3lame_encoder_deps="libmp3lame"
1841 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1842 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1843 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1844 libopenjpeg_decoder_deps="libopenjpeg"
1845 libopenjpeg_encoder_deps="libopenjpeg"
1846 libopus_decoder_deps="libopus"
1847 libopus_encoder_deps="libopus"
1848 libschroedinger_decoder_deps="libschroedinger"
1849 libschroedinger_encoder_deps="libschroedinger"
1850 libspeex_decoder_deps="libspeex"
1851 libspeex_encoder_deps="libspeex"
1852 libstagefright_h264_decoder_deps="libstagefright_h264"
1853 libtheora_encoder_deps="libtheora"
1854 libtwolame_encoder_deps="libtwolame"
1855 libvo_aacenc_encoder_deps="libvo_aacenc"
1856 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1857 libvorbis_decoder_deps="libvorbis"
1858 libvorbis_encoder_deps="libvorbis"
1859 libvpx_vp8_decoder_deps="libvpx"
1860 libvpx_vp8_encoder_deps="libvpx"
1861 libvpx_vp9_decoder_deps="libvpx"
1862 libvpx_vp9_encoder_deps="libvpx"
1863 libx264_encoder_deps="libx264"
1864 libx264rgb_encoder_deps="libx264"
1865 libxavs_encoder_deps="libxavs"
1866 libxvid_encoder_deps="libxvid"
1867 libutvideo_decoder_deps="libutvideo"
1868 libutvideo_encoder_deps="libutvideo"
1869
1870 # demuxers / muxers
1871 ac3_demuxer_select="ac3_parser"
1872 asf_stream_muxer_select="asf_muxer"
1873 avisynth_demuxer_deps="avisynth"
1874 dirac_demuxer_select="dirac_parser"
1875 dts_demuxer_select="dca_parser"
1876 dtshd_demuxer_select="dca_parser"
1877 eac3_demuxer_select="ac3_parser"
1878 f4v_muxer_select="mov_muxer"
1879 flac_demuxer_select="flac_parser"
1880 ipod_muxer_select="mov_muxer"
1881 ismv_muxer_select="mov_muxer"
1882 libnut_demuxer_deps="libnut"
1883 libnut_muxer_deps="libnut"
1884 matroska_audio_muxer_select="matroska_muxer"
1885 matroska_demuxer_suggest="bzlib lzo zlib"
1886 mov_demuxer_suggest="zlib"
1887 mov_muxer_select="rtpenc_chain"
1888 mp3_demuxer_select="mpegaudio_parser"
1889 mp4_muxer_select="mov_muxer"
1890 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1891 mpegtsraw_demuxer_select="mpegts_demuxer"
1892 mxf_d10_muxer_select="mxf_muxer"
1893 ogg_demuxer_select="golomb"
1894 psp_muxer_select="mov_muxer"
1895 rtp_demuxer_select="sdp_demuxer"
1896 rtp_muxer_select="mpegvideo"
1897 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1898 rtsp_demuxer_select="http_protocol rtpdec"
1899 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1900 sap_demuxer_select="sdp_demuxer"
1901 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1902 sdp_demuxer_select="rtpdec"
1903 smoothstreaming_muxer_select="ismv_muxer"
1904 spdif_muxer_select="aac_parser"
1905 tak_demuxer_select="tak_parser"
1906 tg2_muxer_select="mov_muxer"
1907 tgp_muxer_select="mov_muxer"
1908 vobsub_demuxer_select="mpegps_demuxer"
1909 w64_demuxer_deps="wav_demuxer"
1910 w64_muxer_deps="wav_muxer"
1911
1912 # indevs / outdevs
1913 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1914 alsa_outdev_deps="alsa_asoundlib_h"
1915 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1916 caca_outdev_deps="libcaca"
1917 dshow_indev_deps="IBaseFilter"
1918 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1919 dv1394_indev_deps="dv1394 dv_demuxer"
1920 fbdev_indev_deps="linux_fb_h"
1921 iec61883_indev_deps="libiec61883"
1922 jack_indev_deps="jack_jack_h sem_timedwait"
1923 lavfi_indev_deps="avfilter"
1924 libcdio_indev_deps="libcdio"
1925 libdc1394_indev_deps="libdc1394"
1926 libv4l2_indev_deps="libv4l2"
1927 openal_indev_deps="openal"
1928 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1929 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1930 pulse_indev_deps="libpulse"
1931 sdl_outdev_deps="sdl"
1932 sndio_indev_deps="sndio_h"
1933 sndio_outdev_deps="sndio_h"
1934 v4l_indev_deps="linux_videodev_h"
1935 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1936 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1937 vfwcap_indev_extralibs="-lavicap32"
1938 x11grab_indev_deps="x11grab"
1939
1940 # protocols
1941 bluray_protocol_deps="libbluray"
1942 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1943 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1944 ffrtmpcrypt_protocol_select="tcp_protocol"
1945 ffrtmphttp_protocol_deps="!librtmp_protocol"
1946 ffrtmphttp_protocol_select="http_protocol"
1947 gopher_protocol_select="network"
1948 httpproxy_protocol_select="tcp_protocol"
1949 http_protocol_select="tcp_protocol"
1950 https_protocol_select="tls_protocol"
1951 librtmp_protocol_deps="librtmp"
1952 librtmpe_protocol_deps="librtmp"
1953 librtmps_protocol_deps="librtmp"
1954 librtmpt_protocol_deps="librtmp"
1955 librtmpte_protocol_deps="librtmp"
1956 mmsh_protocol_select="http_protocol"
1957 mmst_protocol_select="network"
1958 rtmp_protocol_deps="!librtmp_protocol"
1959 rtmp_protocol_select="tcp_protocol"
1960 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1961 rtmps_protocol_deps="!librtmp_protocol"
1962 rtmps_protocol_select="tls_protocol"
1963 rtmpt_protocol_select="ffrtmphttp_protocol"
1964 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1965 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1966 rtp_protocol_select="udp_protocol"
1967 sctp_protocol_deps="struct_sctp_event_subscribe"
1968 sctp_protocol_select="network"
1969 tcp_protocol_select="network"
1970 tls_protocol_deps_any="openssl gnutls"
1971 tls_protocol_select="tcp_protocol"
1972 udp_protocol_select="network"
1973
1974 # filters
1975 aconvert_filter_deps="swresample"
1976 amovie_filter_deps="avcodec avformat"
1977 aresample_filter_deps="swresample"
1978 ass_filter_deps="libass"
1979 asyncts_filter_deps="avresample"
1980 atempo_filter_deps="avcodec rdft"
1981 blackframe_filter_deps="gpl"
1982 boxblur_filter_deps="gpl"
1983 colormatrix_filter_deps="gpl"
1984 cropdetect_filter_deps="gpl"
1985 decimate_filter_deps="gpl avcodec"
1986 delogo_filter_deps="gpl"
1987 deshake_filter_deps="avcodec"
1988 drawtext_filter_deps="libfreetype"
1989 ebur128_filter_deps="gpl"
1990 flite_filter_deps="libflite"
1991 frei0r_filter_deps="frei0r dlopen"
1992 frei0r_filter_extralibs='$ldl'
1993 frei0r_src_filter_deps="frei0r dlopen"
1994 frei0r_src_filter_extralibs='$ldl'
1995 geq_filter_deps="gpl"
1996 histeq_filter_deps="gpl"
1997 hqdn3d_filter_deps="gpl"
1998 hue_filter_deps="gpl"
1999 kerndeint_filter_deps="gpl"
2000 movie_filter_deps="avcodec avformat"
2001 mp_filter_deps="gpl avcodec swscale inline_asm"
2002 mptestsrc_filter_deps="gpl"
2003 negate_filter_deps="lut_filter"
2004 resample_filter_deps="avresample"
2005 ocv_filter_deps="libopencv"
2006 pan_filter_deps="swresample"
2007 pp_filter_deps="gpl postproc"
2008 removelogo_filter_deps="avcodec avformat swscale"
2009 scale_filter_deps="swscale"
2010 smartblur_filter_deps="gpl swscale"
2011 showspectrum_filter_deps="avcodec rdft"
2012 subtitles_filter_deps="avformat avcodec libass"
2013 super2xsai_filter_deps="gpl"
2014 tinterlace_filter_deps="gpl"
2015 yadif_filter_deps="gpl"
2016 pixfmts_super2xsai_test_deps="super2xsai_filter"
2017 tinterlace_merge_test_deps="tinterlace_filter"
2018 tinterlace_pad_test_deps="tinterlace_filter"
2019
2020 # libraries
2021 avcodec_deps="avutil"
2022 avdevice_deps="avutil avcodec avformat"
2023 avfilter_deps="avutil"
2024 avformat_deps="avutil avcodec"
2025 avresample_deps="avutil"
2026 postproc_deps="avutil gpl"
2027 swscale_deps="avutil"
2028
2029 # programs
2030 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2031 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2032                setpts_filter null_filter anull_filter ffabuffersink_filter"
2033 ffplay_deps="avcodec avformat swscale swresample sdl"
2034 ffplay_select="ffbuffersink_filter rdft crop_filter"
2035 ffprobe_deps="avcodec avformat"
2036 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2037 ffserver_extralibs='$ldl'
2038
2039 # documentation
2040 podpages_deps="perl"
2041 manpages_deps="perl pod2man"
2042 htmlpages_deps="texi2html"
2043 txtpages_deps="makeinfo"
2044 doc_deps_any="manpages htmlpages podpages txtpages"
2045
2046 # default parameters
2047
2048 logfile="config.log"
2049
2050 # installation paths
2051 prefix_default="/usr/local"
2052 bindir_default='${prefix}/bin'
2053 datadir_default='${prefix}/share/ffmpeg'
2054 incdir_default='${prefix}/include'
2055 libdir_default='${prefix}/lib'
2056 mandir_default='${prefix}/share/man'
2057 shlibdir_default="$libdir_default"
2058
2059 # toolchain
2060 ar_default="ar"
2061 cc_default="gcc"
2062 cxx_default="g++"
2063 host_cc_default="gcc"
2064 cp_f="cp -f"
2065 install="install"
2066 ln_s="ln -sf"
2067 nm_default="nm -g"
2068 objformat="elf"
2069 pkg_config_default=pkg-config
2070 ranlib="ranlib"
2071 strip_default="strip"
2072 yasmexe_default="yasm"
2073
2074 nogas=":"
2075
2076 # machine
2077 arch_default=$(uname -m)
2078 cpu="generic"
2079
2080 # OS
2081 target_os_default=$(tolower $(uname -s))
2082 host_os=$target_os_default
2083
2084 # configurable options
2085 enable $PROGRAM_LIST
2086 enable $DOCUMENT_LIST
2087 enable $(filter_out avresample $LIBRARY_LIST)
2088 enable stripping
2089
2090 enable asm
2091 enable debug
2092 enable doc
2093 enable optimizations
2094 enable runtime_cpudetect
2095 enable safe_bitstream_reader
2096 enable static
2097 enable swscale_alpha
2098
2099 # build settings
2100 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2101 FFSERVERLDFLAGS=-Wl,-E
2102 LIBPREF="lib"
2103 LIBSUF=".a"
2104 FULLNAME='$(NAME)$(BUILDSUF)'
2105 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2106 SLIBPREF="lib"
2107 SLIBSUF=".so"
2108 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2109 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2110 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2111 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2112 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2113 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2114
2115 asflags_filter=echo
2116 cflags_filter=echo
2117 ldflags_filter=echo
2118
2119 AS_C='-c'
2120 AS_O='-o $@'
2121 CC_C='-c'
2122 CC_E='-E -o $@'
2123 CC_O='-o $@'
2124 CXX_C='-c'
2125 CXX_O='-o $@'
2126 LD_O='-o $@'
2127 LD_LIB='-l%'
2128 LD_PATH='-L'
2129 HOSTCC_C='-c'
2130 HOSTCC_O='-o $@'
2131 HOSTLD_O='-o $@'
2132
2133 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2134 host_libs='-lm'
2135 host_cflags_filter=echo
2136 host_ldflags_filter=echo
2137
2138 target_path='$(CURDIR)'
2139
2140 # since the object filename is not given with the -MM flag, the compiler
2141 # is only able to print the basename, and we must add the path ourselves
2142 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2143 DEPFLAGS='-MM'
2144
2145 # find source path
2146 if test -f configure; then
2147     source_path=.
2148 else
2149     source_path=$(cd $(dirname "$0"); pwd)
2150     echo "$source_path" | grep -q '[[:blank:]]' &&
2151         die "Out of tree builds are impossible with whitespace in source path."
2152     test -e "$source_path/config.h" &&
2153         die "Out of tree builds are impossible with config.h in source dir."
2154 fi
2155
2156 for v in "$@"; do
2157     r=${v#*=}
2158     l=${v%"$r"}
2159     r=$(sh_quote "$r")
2160     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2161 done
2162
2163 find_things(){
2164     thing=$1
2165     pattern=$2
2166     file=$source_path/$3
2167     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2168 }
2169
2170 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2171 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2172 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2173 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2174 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2175 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2176 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2177 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2178 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2179 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2180 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2181
2182 ALL_COMPONENTS="
2183     $BSF_LIST
2184     $DECODER_LIST
2185     $DEMUXER_LIST
2186     $ENCODER_LIST
2187     $FILTER_LIST
2188     $HWACCEL_LIST
2189     $INDEV_LIST
2190     $MUXER_LIST
2191     $OUTDEV_LIST
2192     $PARSER_LIST
2193     $PROTOCOL_LIST
2194 "
2195
2196 for n in $COMPONENT_LIST; do
2197     v=$(toupper ${n%s})_LIST
2198     eval enable \$$v
2199     eval ${n}_if_any="\$$v"
2200 done
2201
2202 enable $ARCH_EXT_LIST
2203
2204 die_unknown(){
2205     echo "Unknown option \"$1\"."
2206     echo "See $0 --help for available options."
2207     exit 1
2208 }
2209
2210 show_list() {
2211     suffix=_$1
2212     shift
2213     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2214     exit 0
2215 }
2216
2217 rand_list(){
2218     IFS=', '
2219     set -- $*
2220     unset IFS
2221     for thing; do
2222         comp=${thing%:*}
2223         prob=${thing#$comp}
2224         prob=${prob#:}
2225         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2226         echo "prob ${prob:-0.5}"
2227         printf '%s\n' $comp
2228     done
2229 }
2230
2231 do_random(){
2232     action=$1
2233     shift
2234     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2235     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2236 }
2237
2238 for opt do
2239     optval="${opt#*=}"
2240     case "$opt" in
2241         --extra-ldflags=*)
2242             add_ldflags $optval
2243         ;;
2244         --extra-libs=*)
2245             add_extralibs $optval
2246         ;;
2247         --disable-devices)
2248             disable $INDEV_LIST $OUTDEV_LIST
2249         ;;
2250         --enable-debug=*)
2251             debuglevel="$optval"
2252         ;;
2253         --disable-programs)
2254             disable $PROGRAM_LIST
2255         ;;
2256         --disable-everything)
2257             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2258         ;;
2259         --disable-all)
2260             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2261             disable $LIBRARY_LIST $PROGRAM_LIST doc
2262         ;;
2263         --enable-random|--disable-random)
2264             action=${opt%%-random}
2265             do_random ${action#--} $COMPONENT_LIST
2266         ;;
2267         --enable-random=*|--disable-random=*)
2268             action=${opt%%-random=*}
2269             do_random ${action#--} $optval
2270         ;;
2271         --enable-*=*|--disable-*=*)
2272             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2273             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2274             eval list=\$$(toupper $thing)_LIST
2275             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2276             list=$(filter "$name" $list)
2277             [ "$list" = "" ] && warn "Option $opt did not match anything"
2278             $action $list
2279         ;;
2280         --enable-?*|--disable-?*)
2281             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2282             if is_in $option $COMPONENT_LIST; then
2283                 test $action = disable && action=unset
2284                 eval $action \$$(toupper ${option%s})_LIST
2285             elif is_in $option $CMDLINE_SELECT; then
2286                 $action $option
2287             else
2288                 die_unknown $opt
2289             fi
2290         ;;
2291         --list-*)
2292             NAME="${opt#--list-}"
2293             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2294             NAME=${NAME%s}
2295             eval show_list $NAME \$$(toupper $NAME)_LIST
2296         ;;
2297         --help|-h) show_help
2298         ;;
2299         --fatal-warnings) enable fatal_warnings
2300         ;;
2301         *)
2302             optname="${opt%%=*}"
2303             optname="${optname#--}"
2304             optname=$(echo "$optname" | sed 's/-/_/g')
2305             if is_in $optname $CMDLINE_SET; then
2306                 eval $optname='$optval'
2307             elif is_in $optname $CMDLINE_APPEND; then
2308                 append $optname "$optval"
2309             else
2310                 die_unknown $opt
2311             fi
2312         ;;
2313     esac
2314 done
2315
2316 disabled logging && logfile=/dev/null
2317
2318 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2319 set >> $logfile
2320
2321 test -n "$cross_prefix" && enable cross_compile
2322
2323 if enabled cross_compile; then
2324     test -n "$arch" && test -n "$target_os" ||
2325         die "Must specify target arch and OS when cross-compiling"
2326 fi
2327
2328 ar_default="${cross_prefix}${ar_default}"
2329 cc_default="${cross_prefix}${cc_default}"
2330 cxx_default="${cross_prefix}${cxx_default}"
2331 nm_default="${cross_prefix}${nm_default}"
2332 pkg_config_default="${cross_prefix}${pkg_config_default}"
2333 ranlib="${cross_prefix}${ranlib}"
2334 strip_default="${cross_prefix}${strip_default}"
2335
2336 sysinclude_default="${sysroot}/usr/include"
2337
2338 case "$toolchain" in
2339     clang-asan)
2340         cc_default="clang"
2341         add_cflags  -faddress-sanitizer
2342         add_ldflags -faddress-sanitizer
2343     ;;
2344     clang-tsan)
2345         cc_default="clang"
2346         add_cflags  -fthread-sanitizer
2347         add_ldflags -fthread-sanitizer
2348     ;;
2349     msvc)
2350         cc_default="c99wrap cl"
2351         ld_default="c99wrap link"
2352         nm_default="dumpbin -symbols"
2353         ar_default="lib"
2354         target_os_default="win32"
2355     ;;
2356     ?*)
2357         die "Unknown toolchain $toolchain"
2358     ;;
2359 esac
2360
2361 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2362 enabled cross_compile || host_cc_default=$cc
2363 set_default host_cc
2364
2365 if ! $pkg_config --version >/dev/null 2>&1; then
2366     warn "$pkg_config not found, library detection may fail."
2367     pkg_config=false
2368 fi
2369
2370 exesuf() {
2371     case $1 in
2372         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2373     esac
2374 }
2375
2376 EXESUF=$(exesuf $target_os)
2377 HOSTEXESUF=$(exesuf $host_os)
2378
2379 # set temporary file name
2380 : ${TMPDIR:=$TEMPDIR}
2381 : ${TMPDIR:=$TMP}
2382 : ${TMPDIR:=/tmp}
2383
2384 if ! check_cmd mktemp -u XXXXXX; then
2385     # simple replacement for missing mktemp
2386     # NOT SAFE FOR GENERAL USE
2387     mktemp(){
2388         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2389     }
2390 fi
2391
2392 tmpfile(){
2393     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2394         (set -C; exec > $tmp) 2>/dev/null ||
2395         die "Unable to create temporary file in $TMPDIR."
2396     append TMPFILES $tmp
2397     eval $1=$tmp
2398 }
2399
2400 trap 'rm -f -- $TMPFILES' EXIT
2401
2402 tmpfile TMPASM .asm
2403 tmpfile TMPC   .c
2404 tmpfile TMPCPP .cpp
2405 tmpfile TMPE   $EXESUF
2406 tmpfile TMPH   .h
2407 tmpfile TMPO   .o
2408 tmpfile TMPS   .S
2409 tmpfile TMPSH  .sh
2410 tmpfile TMPV   .ver
2411
2412 unset -f mktemp
2413
2414 chmod +x $TMPE
2415
2416 # make sure we can execute files in $TMPDIR
2417 cat > $TMPSH 2>> $logfile <<EOF
2418 #! /bin/sh
2419 EOF
2420 chmod +x $TMPSH >> $logfile 2>&1
2421 if ! $TMPSH >> $logfile 2>&1; then
2422     cat <<EOF
2423 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2424 variable to another directory and make sure that it is not mounted noexec.
2425 EOF
2426     die "Sanity test failed."
2427 fi
2428
2429 ccc_flags(){
2430     for flag; do
2431         case $flag in
2432             -std=c99)           echo -c99                       ;;
2433             -mcpu=*)            echo -arch ${flag#*=}           ;;
2434             -mieee)             echo -ieee                      ;;
2435             -O*|-fast)          echo $flag                      ;;
2436             -fno-math-errno)    echo -assume nomath_errno       ;;
2437             -g)                 echo -g3                        ;;
2438             -Wall)              echo -msg_enable level2         ;;
2439             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2440             -Wl,*)              echo $flag                      ;;
2441             -f*|-W*)                                            ;;
2442             *)                  echo $flag                      ;;
2443         esac
2444    done
2445 }
2446
2447 msvc_flags(){
2448     for flag; do
2449         case $flag in
2450             -fomit-frame-pointer) echo -Oy ;;
2451             -g)                   echo -Z7 ;;
2452             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2453                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2454                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2455                                        -wd4554 \
2456                                        -wd4996 -wd4273 ;;
2457             -std=c99)             ;;
2458             -fno-math-errno)      ;;
2459             -fno-common)          ;;
2460             -fno-signed-zeros)    ;;
2461             -fPIC)                ;;
2462             -lz)                  echo zlib.lib ;;
2463             -lavifil32)           echo vfw32.lib ;;
2464             -lavicap32)           echo vfw32.lib user32.lib ;;
2465             -l*)                  echo ${flag#-l}.lib ;;
2466             *)                    echo $flag ;;
2467         esac
2468     done
2469 }
2470
2471 pgi_flags(){
2472     for flag; do
2473         case $flag in
2474             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2475             -fomit-frame-pointer) echo -Mnoframe ;;
2476             -g)                   echo -gopt ;;
2477             *)                    echo $flag ;;
2478         esac
2479     done
2480 }
2481
2482 suncc_flags(){
2483     for flag; do
2484         case $flag in
2485             -march=*|-mcpu=*)
2486                 case "${flag#*=}" in
2487                     native)                   echo -xtarget=native       ;;
2488                     v9|niagara)               echo -xarch=sparc          ;;
2489                     ultrasparc)               echo -xarch=sparcvis       ;;
2490                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2491                     i586|pentium)             echo -xchip=pentium        ;;
2492                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2493                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2494                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2495                     pentium4*)          echo -xtarget=pentium4           ;;
2496                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2497                     *-sse3)             echo -xarch=sse3                 ;;
2498                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2499                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2500                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2501                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2502                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2503                     k8|opteron|athlon64|athlon-fx)
2504                                               echo -xarch=sse2a          ;;
2505                     athlon*)                  echo -xarch=pentium_proa   ;;
2506                 esac
2507                 ;;
2508             -std=c99)             echo -xc99              ;;
2509             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2510             -fPIC)                echo -KPIC -xcode=pic32 ;;
2511             -W*,*)                echo $flag              ;;
2512             -f*-*|-W*|-mimpure-text)                      ;;
2513             -shared)              echo -G                 ;;
2514             *)                    echo $flag              ;;
2515         esac
2516     done
2517 }
2518
2519 tms470_flags(){
2520     for flag; do
2521         case $flag in
2522             -march=*|-mcpu=*)
2523                 case "${flag#*=}" in
2524                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2525                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2526                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2527                     armv6*|arm11*)          echo -mv=6   ;;
2528                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2529                                             echo -mv=5e  ;;
2530                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2531                 esac
2532                 ;;
2533             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2534             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2535             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2536             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2537             -msoft-float)   echo --float_support=vfplib       ;;
2538             -O[0-3]|-mf=*)  echo $flag                        ;;
2539             -g)             echo -g -mn                       ;;
2540             -pds=*)         echo $flag                        ;;
2541             -D*|-I*)        echo $flag                        ;;
2542             --gcc|--abi=*)  echo $flag                        ;;
2543             -me)            echo $flag                        ;;
2544         esac
2545     done
2546 }
2547
2548 probe_cc(){
2549     pfx=$1
2550     _cc=$2
2551
2552     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2553     unset _ld_o _ldflags _ld_lib _ld_path
2554     unset _depflags _DEPCMD _DEPFLAGS
2555     _flags_filter=echo
2556
2557     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2558         _type=llvm_gcc
2559         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2560         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2561         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2562         _cflags_speed='-O3'
2563         _cflags_size='-Os'
2564     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2565         _type=gcc
2566         gcc_version=$($_cc --version | head -n1)
2567         gcc_basever=$($_cc -dumpversion)
2568         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2569         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2570         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2571         if ! $_cc -dumpversion | grep -q '^2\.'; then
2572             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2573         fi
2574         _cflags_speed='-O3'
2575         _cflags_size='-Os'
2576     elif $_cc --version 2>/dev/null | grep -q Intel; then
2577         _type=icc
2578         _ident=$($_cc --version | head -n1)
2579         _depflags='-MMD'
2580         _cflags_speed='-O3'
2581         _cflags_size='-Os'
2582         _cflags_noopt='-O1'
2583     elif $_cc -v 2>&1 | grep -q xlc; then
2584         _type=xlc
2585         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2586         _cflags_speed='-O5'
2587         _cflags_size='-O5 -qcompact'
2588     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2589         _type=ccc
2590         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2591         _DEPFLAGS='-M'
2592         _cflags_speed='-fast'
2593         _cflags_size='-O1'
2594         _flags_filter=ccc_flags
2595     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2596         test -d "$sysroot" || die "No valid sysroot specified."
2597         _type=armcc
2598         _ident=$($_cc --vsn | head -n1)
2599         armcc_conf="$PWD/armcc.conf"
2600         $_cc --arm_linux_configure                 \
2601              --arm_linux_config_file="$armcc_conf" \
2602              --configure_sysroot="$sysroot"        \
2603              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2604              die "Error creating armcc configuration file."
2605         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2606         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2607         as_default="${cross_prefix}gcc"
2608         _depflags='-MMD'
2609         _cflags_speed='-O3'
2610         _cflags_size='-Os'
2611     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2612         _type=tms470
2613         _ident=$($_cc -version | head -n1 | tr -s ' ')
2614         _flags='--gcc --abi=eabi -me'
2615         _cc_e='-ppl -fe=$@'
2616         _cc_o='-fe=$@'
2617         _depflags='-ppa -ppd=$(@:.o=.d)'
2618         _cflags_speed='-O3 -mf=5'
2619         _cflags_size='-O3 -mf=2'
2620         _flags_filter=tms470_flags
2621     elif $_cc -v 2>&1 | grep -q clang; then
2622         _type=clang
2623         _ident=$($_cc --version | head -n1)
2624         _depflags='-MMD'
2625         _cflags_speed='-O3'
2626         _cflags_size='-Os'
2627     elif $_cc -V 2>&1 | grep -q Sun; then
2628         _type=suncc
2629         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2630         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2631         _DEPFLAGS='-xM1 -xc99'
2632         _ldflags='-std=c99'
2633         _cflags_speed='-O5'
2634         _cflags_size='-O5 -xspace'
2635         _flags_filter=suncc_flags
2636     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2637         _type=pathscale
2638         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2639         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2640         _cflags_speed='-O2'
2641         _cflags_size='-Os'
2642         _flags_filter='filter_out -Wdisabled-optimization'
2643     elif $_cc -v 2>&1 | grep -q Open64; then
2644         _type=open64
2645         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2646         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2647         _cflags_speed='-O2'
2648         _cflags_size='-Os'
2649         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2650     elif $_cc -V 2>&1 | grep -q Portland; then
2651         _type=pgi
2652         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2653         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2654         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2655         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2656         _cflags_noopt="-O1"
2657         _flags_filter=pgi_flags
2658     elif $_cc 2>&1 | grep -q Microsoft; then
2659         _type=msvc
2660         _ident=$($cc 2>&1 | head -n1)
2661         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2662         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2663         _cflags_speed="-O2"
2664         _cflags_size="-O1"
2665         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2666         if $_cc 2>&1 | grep -q Linker; then
2667             _ld_o='-out $@'
2668         else
2669             _ld_o='-Fe$@'
2670         fi
2671         _cc_o='-Fo $@'
2672         _cc_e='-P -Fi $@'
2673         _flags_filter=msvc_flags
2674         _ld_lib='lib%.a'
2675         _ld_path='-libpath:'
2676         _flags='-nologo'
2677         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2678         if [ $pfx = hostcc ]; then
2679             append _cflags -Dsnprintf=_snprintf
2680         fi
2681         disable stripping
2682     fi
2683
2684     eval ${pfx}_type=\$_type
2685     eval ${pfx}_ident=\$_ident
2686 }
2687
2688 set_ccvars(){
2689     eval ${1}_C=\${_cc_c-\${${1}_C}}
2690     eval ${1}_E=\${_cc_e-\${${1}_E}}
2691     eval ${1}_O=\${_cc_o-\${${1}_O}}
2692
2693     if [ -n "$_depflags" ]; then
2694         eval ${1}_DEPFLAGS=\$_depflags
2695     else
2696         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2697         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2698         eval DEP${1}FLAGS=\$_flags
2699     fi
2700 }
2701
2702 probe_cc cc "$cc"
2703 cflags_filter=$_flags_filter
2704 cflags_speed=$_cflags_speed
2705 cflags_size=$_cflags_size
2706 cflags_noopt=$_cflags_noopt
2707 add_cflags $_flags $_cflags
2708 cc_ldflags=$_ldflags
2709 set_ccvars CC
2710
2711 probe_cc hostcc "$host_cc"
2712 host_cflags_filter=$_flags_filter
2713 add_host_cflags  $_flags $_cflags
2714 set_ccvars HOSTCC
2715
2716 test -n "$cc_type" && enable $cc_type ||
2717     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2718
2719 : ${as_default:=$cc}
2720 : ${dep_cc_default:=$cc}
2721 : ${ld_default:=$cc}
2722 : ${host_ld_default:=$host_cc}
2723 set_default ar as dep_cc ld host_ld
2724
2725 probe_cc as "$as"
2726 asflags_filter=$_flags_filter
2727 add_asflags $_flags $_cflags
2728 set_ccvars AS
2729
2730 probe_cc ld "$ld"
2731 ldflags_filter=$_flags_filter
2732 add_ldflags $_flags $_ldflags
2733 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2734 LD_O=${_ld_o-$LD_O}
2735 LD_LIB=${_ld_lib-$LD_LIB}
2736 LD_PATH=${_ld_path-$LD_PATH}
2737
2738 probe_cc hostld "$host_ld"
2739 host_ldflags_filter=$_flags_filter
2740 add_host_ldflags $_flags $_ldflags
2741 HOSTLD_O=${_ld_o-$HOSTLD_O}
2742
2743 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2744     probe_cc depcc "$dep_cc"
2745     CCDEP=${_DEPCMD:-$DEPCMD}
2746     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2747     DEPCCFLAGS=$_flags
2748 fi
2749
2750 if $ar 2>&1 | grep -q Microsoft; then
2751     arflags="-nologo"
2752     ar_o='-out:$@'
2753 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2754     arflags="rq"
2755     ar_o='$@'
2756 else
2757     arflags="rc"
2758     ar_o='$@'
2759 fi
2760
2761 add_cflags $extra_cflags
2762 add_cxxflags $extra_cxxflags
2763 add_asflags $extra_cflags
2764
2765 if test -n "$sysroot"; then
2766     case "$cc_type" in
2767         gcc|llvm_gcc|clang)
2768             add_cppflags --sysroot="$sysroot"
2769             add_ldflags --sysroot="$sysroot"
2770         ;;
2771         tms470)
2772             add_cppflags -I"$sysinclude"
2773             add_ldflags  --sysroot="$sysroot"
2774         ;;
2775     esac
2776 fi
2777
2778 if test "$cpu" = host; then
2779     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2780
2781     case "$cc_type" in
2782         gcc|llvm_gcc)
2783             check_native(){
2784                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2785                 sed -n "/cc1.*$1=/{
2786                             s/.*$1=\\([^ ]*\\).*/\\1/
2787                             p
2788                             q
2789                         }" $TMPE
2790             }
2791             cpu=$(check_native -march || check_native -mcpu)
2792         ;;
2793     esac
2794
2795     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2796 fi
2797
2798 # Deal with common $arch aliases
2799 case "$arch" in
2800     aarch64|arm64)
2801         arch="aarch64"
2802     ;;
2803     arm*|iPad*)
2804         arch="arm"
2805     ;;
2806     mips*|IP*)
2807         arch="mips"
2808     ;;
2809     parisc*|hppa*)
2810         arch="parisc"
2811     ;;
2812     "Power Macintosh"|ppc*|powerpc*)
2813         arch="ppc"
2814     ;;
2815     s390|s390x)
2816         arch="s390"
2817     ;;
2818     sh4|sh)
2819         arch="sh4"
2820     ;;
2821     sun4u|sparc*)
2822         arch="sparc"
2823     ;;
2824     tilegx|tile-gx)
2825         arch="tilegx"
2826     ;;
2827     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2828         arch="x86"
2829     ;;
2830 esac
2831
2832 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2833 enable $arch
2834
2835 # Add processor-specific flags
2836 if enabled aarch64; then
2837
2838     case $cpu in
2839         armv*)
2840             cpuflags="-march=$cpu"
2841         ;;
2842         *)
2843             cpuflags="-mcpu=$cpu"
2844         ;;
2845     esac
2846
2847 elif enabled alpha; then
2848
2849     cpuflags="-mcpu=$cpu"
2850
2851 elif enabled arm; then
2852
2853     check_arm_arch() {
2854         check_cpp_condition stddef.h \
2855             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2856             $cpuflags
2857     }
2858
2859     probe_arm_arch() {
2860         if   check_arm_arch 4;        then echo armv4;
2861         elif check_arm_arch 4T;       then echo armv4t;
2862         elif check_arm_arch 5;        then echo armv5;
2863         elif check_arm_arch 5E;       then echo armv5e;
2864         elif check_arm_arch 5T;       then echo armv5t;
2865         elif check_arm_arch 5TE;      then echo armv5te;
2866         elif check_arm_arch 5TEJ;     then echo armv5te;
2867         elif check_arm_arch 6;        then echo armv6;
2868         elif check_arm_arch 6J;       then echo armv6j;
2869         elif check_arm_arch 6K;       then echo armv6k;
2870         elif check_arm_arch 6Z;       then echo armv6z;
2871         elif check_arm_arch 6ZK;      then echo armv6zk;
2872         elif check_arm_arch 6T2;      then echo armv6t2;
2873         elif check_arm_arch 7;        then echo armv7;
2874         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2875         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2876         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2877         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2878         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2879         fi
2880     }
2881
2882     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2883
2884     case $cpu in
2885         armv*)
2886             cpuflags="-march=$cpu"
2887             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2888         ;;
2889         *)
2890             cpuflags="-mcpu=$cpu"
2891             case $cpu in
2892                 cortex-a*)                               subarch=armv7a  ;;
2893                 cortex-r*)                               subarch=armv7r  ;;
2894                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2895                 arm11*)                                  subarch=armv6   ;;
2896                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2897                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2898                 *)                             subarch=$(probe_arm_arch) ;;
2899             esac
2900         ;;
2901     esac
2902
2903     case "$subarch" in
2904         armv5t*)    enable fast_clz                ;;
2905         armv[6-8]*) enable fast_clz fast_unaligned ;;
2906     esac
2907
2908 elif enabled avr32; then
2909
2910     case $cpu in
2911         ap7[02]0[0-2])
2912             subarch="avr32_ap"
2913             cpuflags="-mpart=$cpu"
2914         ;;
2915         ap)
2916             subarch="avr32_ap"
2917             cpuflags="-march=$cpu"
2918         ;;
2919         uc3[ab]*)
2920             subarch="avr32_uc"
2921             cpuflags="-mcpu=$cpu"
2922         ;;
2923         uc)
2924             subarch="avr32_uc"
2925             cpuflags="-march=$cpu"
2926         ;;
2927     esac
2928
2929 elif enabled bfin; then
2930
2931     cpuflags="-mcpu=$cpu"
2932
2933 elif enabled mips; then
2934
2935     cpuflags="-march=$cpu"
2936
2937     case $cpu in
2938         24kc)
2939             disable mipsfpu
2940             disable mipsdspr1
2941             disable mipsdspr2
2942         ;;
2943         24kf*)
2944             disable mipsdspr1
2945             disable mipsdspr2
2946         ;;
2947         24kec|34kc|1004kc)
2948             disable mipsfpu
2949             disable mipsdspr2
2950         ;;
2951         24kef*|34kf*|1004kf*)
2952             disable mipsdspr2
2953         ;;
2954         74kc)
2955             disable mipsfpu
2956         ;;
2957     esac
2958
2959 elif enabled ppc; then
2960
2961     case $(tolower $cpu) in
2962         601|ppc601|powerpc601)
2963             cpuflags="-mcpu=601"
2964             disable altivec
2965         ;;
2966         603*|ppc603*|powerpc603*)
2967             cpuflags="-mcpu=603"
2968             disable altivec
2969         ;;
2970         604*|ppc604*|powerpc604*)
2971             cpuflags="-mcpu=604"
2972             disable altivec
2973         ;;
2974         g3|75*|ppc75*|powerpc75*)
2975             cpuflags="-mcpu=750"
2976             disable altivec
2977         ;;
2978         g4|745*|ppc745*|powerpc745*)
2979             cpuflags="-mcpu=7450"
2980         ;;
2981         74*|ppc74*|powerpc74*)
2982             cpuflags="-mcpu=7400"
2983         ;;
2984         g5|970|ppc970|powerpc970)
2985             cpuflags="-mcpu=970"
2986         ;;
2987         power[3-7]*)
2988             cpuflags="-mcpu=$cpu"
2989         ;;
2990         cell)
2991             cpuflags="-mcpu=cell"
2992             enable ldbrx
2993         ;;
2994         e500mc)
2995             cpuflags="-mcpu=e500mc"
2996             disable altivec
2997         ;;
2998         e500v2)
2999             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3000             disable altivec
3001         ;;
3002         e500)
3003             cpuflags="-mcpu=8540 -mhard-float"
3004             disable altivec
3005         ;;
3006     esac
3007
3008 elif enabled sparc; then
3009
3010     case $cpu in
3011         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3012             cpuflags="-mcpu=$cpu"
3013             disable vis
3014         ;;
3015         ultrasparc*|niagara[234])
3016             cpuflags="-mcpu=$cpu"
3017         ;;
3018     esac
3019
3020 elif enabled x86; then
3021
3022     case $cpu in
3023         i[345]86|pentium)
3024             cpuflags="-march=$cpu"
3025             disable mmx
3026         ;;
3027         # targets that do NOT support conditional mov (cmov)
3028         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3029             cpuflags="-march=$cpu"
3030             disable cmov
3031         ;;
3032         # targets that do support conditional mov (cmov)
3033         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3034             cpuflags="-march=$cpu"
3035             enable cmov
3036             enable fast_cmov
3037         ;;
3038         # targets that do support conditional mov but on which it's slow
3039         pentium4|pentium4m|prescott|nocona)
3040             cpuflags="-march=$cpu"
3041             enable cmov
3042             disable fast_cmov
3043         ;;
3044     esac
3045
3046 fi
3047
3048 if [ "$cpu" != generic ]; then
3049     add_cflags  $cpuflags
3050     add_asflags $cpuflags
3051 fi
3052
3053 # compiler sanity check
3054 check_exec <<EOF
3055 int main(void){ return 0; }
3056 EOF
3057 if test "$?" != 0; then
3058     echo "$cc is unable to create an executable file."
3059     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3060         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3061         echo "Only do this if you know what cross compiling means."
3062     fi
3063     die "C compiler test failed."
3064 fi
3065
3066 add_cppflags -D_ISOC99_SOURCE
3067 add_cxxflags -D__STDC_CONSTANT_MACROS
3068 check_cflags -std=c99
3069 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3070 #include <stdlib.h>
3071 EOF
3072 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3073 #include <stdlib.h>
3074 EOF
3075
3076 check_host_cflags -std=c99
3077 check_host_cflags -Wall
3078
3079 check_64bit(){
3080     arch32=$1
3081     arch64=$2
3082     expr=$3
3083     check_code cc "" "int test[2*($expr) - 1]" &&
3084         subarch=$arch64 || subarch=$arch32
3085 }
3086
3087 case "$arch" in
3088     aarch64|alpha|ia64)
3089         spic=$shared
3090     ;;
3091     mips)
3092         check_64bit mips mips64 '_MIPS_SIM > 1'
3093         spic=$shared
3094     ;;
3095     parisc)
3096         check_64bit parisc parisc64 'sizeof(void *) > 4'
3097         spic=$shared
3098     ;;
3099     ppc)
3100         check_64bit ppc ppc64 'sizeof(void *) > 4'
3101         spic=$shared
3102     ;;
3103     sparc)
3104         check_64bit sparc sparc64 'sizeof(void *) > 4'
3105         spic=$shared
3106     ;;
3107     x86)
3108         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3109         if test "$subarch" = "x86_64"; then
3110             spic=$shared
3111         fi
3112     ;;
3113     ppc)
3114         check_cc <<EOF && subarch="ppc64"
3115         int test[(int)sizeof(char*) - 7];
3116 EOF
3117     ;;
3118 esac
3119
3120 enable $subarch
3121 enabled spic && enable pic
3122
3123 # OS specific
3124 case $target_os in
3125     haiku)
3126         prefix_default="/boot/common"
3127         network_extralibs="-lnetwork"
3128         host_libs=
3129         ;;
3130     sunos)
3131         FFSERVERLDFLAGS=""
3132         SHFLAGS='-shared -Wl,-h,$$(@F)'
3133         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3134         network_extralibs="-lsocket -lnsl"
3135         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3136         # When using suncc to build, the Solaris linker will mark
3137         # an executable with each instruction set encountered by
3138         # the Solaris assembler.  As our libraries contain their own
3139         # guards for processor-specific code, instead suppress
3140         # generation of the HWCAPS ELF section on Solaris x86 only.
3141         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3142         nm_default='nm -P -g'
3143         ;;
3144     netbsd)
3145         disable symver
3146         oss_indev_extralibs="-lossaudio"
3147         oss_outdev_extralibs="-lossaudio"
3148         enabled gcc || check_ldflags -Wl,-zmuldefs
3149         ;;
3150     openbsd|bitrig)
3151         # On OpenBSD 4.5. the compiler does not use PIC unless
3152         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3153         # however the generated executable will not do anything
3154         # (simply quits with exit-code 1, no crash, no output).
3155         # Thus explicitly enable PIC here.
3156         enable pic
3157         disable symver
3158         SHFLAGS='-shared'
3159         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3160         SLIB_INSTALL_LINKS=
3161         oss_indev_extralibs="-lossaudio"
3162         oss_outdev_extralibs="-lossaudio"
3163         ;;
3164     dragonfly)
3165         disable symver
3166         ;;
3167     freebsd)
3168         ;;
3169     bsd/os)
3170         add_extralibs -lpoll -lgnugetopt
3171         strip="strip -d"
3172         ;;
3173     darwin)
3174         gas="gas-preprocessor.pl $cc"
3175         enabled ppc && add_asflags -force_cpusubtype_ALL
3176         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3177         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3178         strip="${strip} -x"
3179         add_ldflags -Wl,-dynamic,-search_paths_first
3180         SLIBSUF=".dylib"
3181         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3182         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3183         FFSERVERLDFLAGS=-Wl,-bind_at_load
3184         objformat="macho"
3185         enabled x86_64 && objformat="macho64"
3186         enabled_any pic shared ||
3187             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3188         ;;
3189     mingw32*)
3190         if test $target_os = "mingw32ce"; then
3191             disable network
3192         else
3193             target_os=mingw32
3194         fi
3195         LIBTARGET=i386
3196         if enabled x86_64; then
3197             LIBTARGET="i386:x86-64"
3198         elif enabled arm; then
3199             LIBTARGET=arm-wince
3200         fi
3201         shlibdir_default="$bindir_default"
3202         SLIBPREF=""
3203         SLIBSUF=".dll"
3204         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3205         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3206         dlltool="${cross_prefix}dlltool"
3207         if check_cmd lib.exe -list; then
3208             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3209             if enabled x86_64; then
3210                 LIBTARGET=x64
3211             fi
3212         elif check_cmd $dlltool --version; then
3213             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3214         fi
3215         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3216         SLIB_INSTALL_LINKS=
3217         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3218         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3219         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3220         objformat="win32"
3221         ranlib=:
3222         enable dos_paths
3223         add_cppflags -U__STRICT_ANSI__
3224         ;;
3225     win32|win64)
3226         if enabled shared; then
3227             # Link to the import library instead of the normal static library
3228             # for shared libs.
3229             LD_LIB='%.lib'
3230             # Cannot build shared and static libraries at the same time with
3231             # MSVC.
3232             disable static
3233         fi
3234         shlibdir_default="$bindir_default"
3235         SLIBPREF=""
3236         SLIBSUF=".dll"
3237         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3238         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3239         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3240         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3241         SLIB_INSTALL_LINKS=
3242         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3243         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3244         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3245         objformat="win32"
3246         ranlib=:
3247         enable dos_paths
3248         ;;
3249     cygwin*)
3250         target_os=cygwin
3251         shlibdir_default="$bindir_default"
3252         SLIBPREF="cyg"
3253         SLIBSUF=".dll"
3254         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3255         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3256         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3257         SLIB_INSTALL_LINKS=
3258         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3259         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3260         objformat="win32"
3261         enable dos_paths
3262         ;;
3263     *-dos|freedos|opendos)
3264         network_extralibs="-lsocket"
3265         objformat="coff"
3266         enable dos_paths
3267         add_cppflags -U__STRICT_ANSI__
3268         ;;
3269     linux)
3270         enable dv1394
3271         ;;
3272     irix*)
3273         target_os=irix
3274         ranlib="echo ignoring ranlib"
3275         ;;
3276     os/2*)
3277         strip="lxlite -CS"
3278         ln_s="cp -f"
3279         objformat="aout"
3280         add_cppflags -D_GNU_SOURCE
3281         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3282         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3283         FFSERVERLDFLAGS=""
3284         LIBSUF="_s.a"
3285         SLIBPREF=""
3286         SLIBSUF=".dll"
3287         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3288         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3289         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3290             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3291             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3292             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3293             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3294             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3295         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3296             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3297         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3298         enable dos_paths
3299         enable_weak os2threads
3300         ;;
3301     gnu/kfreebsd)
3302         add_cppflags -D_BSD_SOURCE
3303         ;;
3304     gnu)
3305         ;;
3306     qnx)
3307         add_cppflags -D_QNX_SOURCE
3308         network_extralibs="-lsocket"
3309         ;;
3310     symbian)
3311         SLIBSUF=".dll"
3312         enable dos_paths
3313         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3314         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3315         add_ldflags -Wl,--target1-abs,--no-undefined \
3316                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3317                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3318         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3319                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3320                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3321         ;;
3322     osf1)
3323         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3324         FFSERVERLDFLAGS=
3325         ;;
3326     minix)
3327         ;;
3328     plan9)
3329         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3330                      -D_REENTRANT_SOURCE        \
3331                      -D_RESEARCH_SOURCE         \
3332                      -DFD_SETSIZE=96            \
3333                      -DHAVE_SOCK_OPTS
3334         add_compat strtod.o strtod=avpriv_strtod
3335         network_extralibs='-lbsd'
3336         exeobjs=compat/plan9/main.o
3337         disable ffserver
3338         ln_s='ln -s -f'
3339         cp_f='cp'
3340         ;;
3341     none)
3342         ;;
3343     *)
3344         die "Unknown OS '$target_os'."
3345         ;;
3346 esac
3347
3348 # determine libc flavour
3349
3350 if check_cpp_condition features.h "defined __UCLIBC__"; then
3351     libc_type=uclibc
3352     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3353 elif check_cpp_condition features.h "defined __GLIBC__"; then
3354     libc_type=glibc
3355     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3356 elif check_header _mingw.h; then
3357     libc_type=mingw
3358     check_cpp_condition _mingw.h \
3359         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3360             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3361         die "ERROR: MinGW runtime version must be >= 3.15."
3362     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3363             __MINGW64_VERSION_MAJOR < 3"; then
3364         add_compat msvcrt/snprintf.o
3365         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3366     fi
3367 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3368     libc_type=newlib
3369     add_cppflags -U__STRICT_ANSI__
3370 elif check_func_headers stdlib.h _get_doserrno; then
3371     libc_type=msvcrt
3372     add_compat strtod.o strtod=avpriv_strtod
3373     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3374                                  _snprintf=avpriv_snprintf  \
3375                                  vsnprintf=avpriv_vsnprintf
3376 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3377     libc_type=klibc
3378 fi
3379
3380 test -n "$libc_type" && enable $libc_type
3381
3382 # hacks for compiler/libc/os combinations
3383
3384 if enabled_all tms470 glibc; then
3385     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3386     add_cppflags -D__USER_LABEL_PREFIX__=
3387     add_cppflags -D__builtin_memset=memset
3388     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3389     add_cflags   -pds=48    # incompatible redefinition of macro
3390 fi
3391
3392 if enabled_all ccc glibc; then
3393     add_ldflags -Wl,-z,now  # calls to libots crash without this
3394 fi
3395
3396 esc(){
3397     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3398 }
3399
3400 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3401
3402 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3403
3404 set_default $PATHS_LIST
3405 set_default nm
3406
3407 # we need to build at least one lib type
3408 if ! enabled_any static shared; then
3409     cat <<EOF
3410 At least one library type must be built.
3411 Specify --enable-static to build the static libraries or --enable-shared to
3412 build the shared libraries as well. To only build the shared libraries specify
3413 --disable-static in addition to --enable-shared.
3414 EOF
3415     exit 1;
3416 fi
3417
3418 die_license_disabled() {
3419     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3420 }
3421
3422 die_license_disabled_gpl() {
3423     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3424 }
3425
3426 die_license_disabled gpl libcdio
3427 die_license_disabled gpl libutvideo
3428 die_license_disabled gpl libx264
3429 die_license_disabled gpl libxavs
3430 die_license_disabled gpl libxvid
3431 die_license_disabled gpl x11grab
3432
3433 die_license_disabled nonfree libaacplus
3434 die_license_disabled nonfree libfaac
3435 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3436 enabled gpl && die_license_disabled_gpl nonfree openssl
3437
3438 die_license_disabled version3 libopencore_amrnb
3439 die_license_disabled version3 libopencore_amrwb
3440 die_license_disabled version3 libvo_aacenc
3441 die_license_disabled version3 libvo_amrwbenc
3442
3443 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3444
3445 disabled optimizations || check_cflags -fomit-frame-pointer
3446
3447 enable_pic() {
3448     enable pic
3449     add_cppflags -DPIC
3450     add_cflags   -fPIC
3451     add_asflags  -fPIC
3452 }
3453
3454 enabled pic && enable_pic
3455
3456 check_cc <<EOF || die "Symbol mangling check failed."
3457 int ff_extern;
3458 EOF
3459 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3460 extern_prefix=${sym%%ff_extern*}
3461
3462 check_cc <<EOF && enable_weak inline_asm
3463 void foo(void) { __asm__ volatile ("" ::); }
3464 EOF
3465
3466 _restrict=
3467 for restrict_keyword in restrict __restrict__ __restrict; do
3468     check_cc <<EOF && _restrict=$restrict_keyword && break
3469 void foo(char * $restrict_keyword p);
3470 EOF
3471 done
3472
3473 check_cc <<EOF && enable attribute_packed
3474 struct { int x; } __attribute__((packed)) x;
3475 EOF
3476
3477 check_cc <<EOF && enable attribute_may_alias
3478 union { int x; } __attribute__((may_alias)) x;
3479 EOF
3480
3481 check_cc <<EOF || die "endian test failed"
3482 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3483 EOF
3484 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3485
3486 if enabled alpha; then
3487
3488     check_cflags -mieee
3489
3490 elif enabled arm; then
3491
3492     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3493 float func(float a, float b){ return a+b; }
3494 EOF
3495
3496     enabled thumb && check_cflags -mthumb || check_cflags -marm
3497     nogas=die
3498
3499     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3500         enable vfp_args
3501     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3502         case "${cross_prefix:-$cc}" in
3503             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3504             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3505 __asm__ (".eabi_attribute 28, 1");
3506 int main(void) { return 0; }
3507 EOF
3508         esac
3509         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3510     fi
3511
3512     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3513     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3514     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3515     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3516     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3517     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3518
3519     [ $target_os = linux ] ||
3520         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3521             $ARCH_EXT_LIST_ARM
3522
3523     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3524     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3525
3526     enabled_all armv6t2 shared !pic && enable_pic
3527
3528 elif enabled mips; then
3529
3530     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3531     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3532      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3533     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3534      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3535     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3536      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3537     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3538      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3539
3540 elif enabled parisc; then
3541
3542     if enabled gcc; then
3543         case $($cc -dumpversion) in
3544             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3545         esac
3546     fi
3547
3548 elif enabled ppc; then
3549
3550     enable local_aligned_8 local_aligned_16
3551
3552     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3553     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3554     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3555     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3556
3557     # AltiVec flags: The FSF version of GCC differs from the Apple version
3558     if enabled altivec; then
3559         nogas=warn
3560         check_cflags -maltivec -mabi=altivec &&
3561         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3562         check_cflags -faltivec
3563
3564         # check if our compiler supports Motorola AltiVec C API
3565         check_cc <<EOF || disable altivec
3566 $inc_altivec_h
3567 int main(void) {
3568     vector signed int v1 = (vector signed int) { 0 };
3569     vector signed int v2 = (vector signed int) { 1 };
3570     v1 = vec_add(v1, v2);
3571     return 0;
3572 }
3573 EOF
3574
3575         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3576     fi
3577
3578 elif enabled sparc; then
3579
3580     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3581
3582 elif enabled x86; then
3583
3584     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3585
3586     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3587
3588     enable local_aligned_8 local_aligned_16
3589
3590     # check whether EBP is available on x86
3591     # As 'i' is stored on the stack, this program will crash
3592     # if the base pointer is used to access it because the
3593     # base pointer is cleared in the inline assembly code.
3594     check_exec_crash <<EOF && enable ebp_available
3595 volatile int i=0;
3596 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3597 return i;
3598 EOF
3599
3600     # check whether EBX is available on x86
3601     check_inline_asm ebx_available '""::"b"(0)' &&
3602         check_inline_asm ebx_available '"":::"%ebx"'
3603
3604     # check whether xmm clobbers are supported
3605     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3606
3607     # check whether binutils is new enough to compile SSSE3/MMXEXT
3608     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3609     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3610
3611     if ! disabled_any asm mmx yasm; then
3612         if check_cmd $yasmexe --version; then
3613             enabled x86_64 && yasm_extra="-m amd64"
3614             yasm_debug="-g dwarf2"
3615         elif check_cmd nasm -v; then
3616             yasmexe=nasm
3617             yasm_debug="-g -F dwarf"
3618             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3619         fi
3620
3621         YASMFLAGS="-f $objformat $yasm_extra"
3622         enabled pic               && append YASMFLAGS "-DPIC"
3623         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3624         case "$objformat" in
3625             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3626         esac
3627
3628         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3629             die "yasm not found, use --disable-yasm for a crippled build"
3630         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3631         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3632         check_yasm "CPU amdnop" && enable cpunop
3633     fi
3634
3635     case "$cpu" in
3636         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3637             disable fast_clz
3638         ;;
3639     esac
3640
3641 fi
3642
3643 if enabled asm; then
3644     as=${gas:=$as}
3645     check_as <<EOF && enable gnu_as || \
3646         $nogas "GNU assembler not found, install gas-preprocessor"
3647 .macro m n
3648 \n: .int 0
3649 .endm
3650 m x
3651 EOF
3652 fi
3653
3654 check_ldflags -Wl,--as-needed
3655
3656 if check_func dlopen; then
3657     ldl=
3658 elif check_func dlopen -ldl; then
3659     ldl=-ldl
3660 fi
3661
3662 if ! disabled network; then
3663     check_type "sys/types.h sys/socket.h" socklen_t
3664     check_type netdb.h "struct addrinfo"
3665     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3666     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3667     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3668     check_type netinet/in.h "struct sockaddr_in6"
3669     check_type poll.h "struct pollfd"
3670     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3671     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3672     check_type netinet/sctp.h "struct sctp_event_subscribe"
3673     check_func getaddrinfo $network_extralibs
3674     check_func getservbyport $network_extralibs
3675     # Prefer arpa/inet.h over winsock2
3676     if check_header arpa/inet.h ; then
3677         check_func closesocket
3678     elif check_header winsock2.h ; then
3679         check_func_headers winsock2.h closesocket -lws2 &&
3680             network_extralibs="-lws2" ||
3681         { check_func_headers winsock2.h closesocket -lws2_32 &&
3682             network_extralibs="-lws2_32"; }
3683         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3684         check_type ws2tcpip.h socklen_t
3685         check_type ws2tcpip.h "struct addrinfo"
3686         check_type ws2tcpip.h "struct group_source_req"
3687         check_type ws2tcpip.h "struct ip_mreq_source"
3688         check_type ws2tcpip.h "struct ipv6_mreq"
3689         check_type winsock2.h "struct pollfd"
3690         check_type ws2tcpip.h "struct sockaddr_in6"
3691         check_type ws2tcpip.h "struct sockaddr_storage"
3692         check_struct winsock2.h "struct sockaddr" sa_len
3693     else
3694         disable network
3695     fi
3696 fi
3697
3698 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3699 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3700
3701 check_func  access
3702 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3703 check_func  fcntl
3704 check_func  fork
3705 check_func  gethrtime
3706 check_func  getopt
3707 check_func  getrusage
3708 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3709 check_func  gettimeofday
3710 check_func  inet_aton $network_extralibs
3711 check_func  isatty
3712 check_func  localtime_r
3713 check_func  ${malloc_prefix}memalign            && enable memalign
3714 check_func  mkstemp
3715 check_func  mmap
3716 check_func  mprotect
3717 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3718 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3719 check_func  setrlimit
3720 check_func  strerror_r
3721 check_func  sched_getaffinity
3722 check_func  sysconf
3723 check_func  sysctl
3724 check_func  usleep
3725 check_func_headers conio.h kbhit
3726 check_func_headers windows.h PeekNamedPipe
3727 check_func_headers io.h setmode
3728 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3729 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3730 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3731 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3732 check_func_headers windows.h GetProcessAffinityMask
3733 check_func_headers windows.h GetProcessTimes
3734 check_func_headers windows.h GetSystemTimeAsFileTime
3735 check_func_headers windows.h MapViewOfFile
3736 check_func_headers windows.h SetConsoleTextAttribute
3737 check_func_headers windows.h Sleep
3738 check_func_headers windows.h VirtualAlloc
3739 check_func_headers glob.h glob
3740
3741 check_header direct.h
3742 check_header dlfcn.h
3743 check_header dxva.h
3744 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3745 check_header io.h
3746 check_header libcrystalhd/libcrystalhd_if.h
3747 check_header malloc.h
3748 check_header poll.h
3749 check_header sys/mman.h
3750 check_header sys/param.h
3751 check_header sys/resource.h
3752 check_header sys/select.h
3753 check_header sys/time.h
3754 check_header termios.h
3755 check_header unistd.h
3756 check_header vdpau/vdpau.h
3757 check_header vdpau/vdpau_x11.h
3758 check_header windows.h
3759 check_header X11/extensions/XvMClib.h
3760 check_header asm/types.h
3761
3762 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3763 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3764
3765 # check for VDA header
3766 if ! disabled vda && ! enabled ppc; then
3767     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3768         enable vda
3769         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3770     fi
3771 fi
3772
3773 if ! disabled w32threads && ! enabled pthreads; then
3774     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3775 fi
3776
3777 # check for some common methods of building with pthread support
3778 # do this before the optional library checks as some of them require pthreads
3779 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3780     enable pthreads
3781     if check_func pthread_create; then
3782         :
3783     elif check_func pthread_create -pthread; then
3784         add_cflags -pthread
3785         add_extralibs -pthread
3786     elif check_func pthread_create -pthreads; then
3787         add_cflags -pthreads
3788         add_extralibs -pthreads
3789     elif check_func pthread_create -lpthreadGC2; then
3790         add_extralibs -lpthreadGC2
3791     elif ! check_lib pthread.h pthread_create -lpthread; then
3792         disable pthreads
3793     fi
3794 fi
3795
3796 for thread in $THREADS_LIST; do
3797     if enabled $thread; then
3798         test -n "$thread_type" &&
3799             die "ERROR: Only one thread type must be selected." ||
3800             thread_type="$thread"
3801     fi
3802 done
3803
3804 if enabled pthreads; then
3805   check_func pthread_cancel
3806 fi
3807
3808 check_lib math.h sin -lm && LIBM="-lm"
3809 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3810 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3811
3812 atan2f_args=2
3813 ldexpf_args=2
3814 powf_args=2
3815
3816 for func in $MATH_FUNCS; do
3817     eval check_mathfunc $func \${${func}_args:-1}
3818 done
3819
3820 # these are off by default, so fail if requested and not available
3821 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3822 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3823 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3824 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3825 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3826 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3827 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3828 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3829 enabled libcdio    && require2 libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3830 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3831                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3832                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3833 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3834 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3835 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3836 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"
3837 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3838 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3839 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3840 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3841 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3842 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3843 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3844 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3845 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3846 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3847 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3848                          check_lib openjpeg.h opj_version -lopenjpeg ||
3849                          die "ERROR: libopenjpeg not found"; }
3850 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3851 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3852 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3853 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3854 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3855 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3856 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3857     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3858     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3859 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3860 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3861                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3862                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3863 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3864 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3865 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3866 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3867 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3868 enabled libvpx     && {
3869     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3870                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3871     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 ||
3872                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3873     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3874     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3875 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3876                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3877                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3878 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3879 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3880 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3881                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3882                         die "ERROR: openal not found"; } &&
3883                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3884                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3885 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3886                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3887                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3888                         die "ERROR: openssl not found"; }
3889
3890 if enabled gnutls; then
3891     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3892     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3893 fi
3894
3895 # libdc1394 check
3896 if enabled libdc1394; then
3897     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3898         enable libdc1394_2; } ||
3899     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3900         enable libdc1394_1; } ||
3901     die "ERROR: No version of libdc1394 found "
3902 fi
3903
3904 SDL_CONFIG="${cross_prefix}sdl-config"
3905 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3906     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3907     enable sdl &&
3908     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3909 else
3910   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3911     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3912     sdl_libs=$("${SDL_CONFIG}" --libs)
3913     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3914     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3915     enable sdl &&
3916     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3917   fi
3918 fi
3919 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3920
3921 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3922 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3923 perl --version > /dev/null 2>&1 && enable perl || disable perl
3924 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3925 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3926
3927 check_header linux/fb.h
3928 check_header linux/videodev.h
3929 check_header linux/videodev2.h
3930 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3931
3932 check_header sys/videoio.h
3933
3934 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3935 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3936 # w32api 3.12 had it defined wrong
3937 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3938
3939 check_type "dshow.h" IBaseFilter
3940
3941 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3942 { check_header dev/bktr/ioctl_meteor.h &&
3943   check_header dev/bktr/ioctl_bt848.h; } ||
3944 { check_header machine/ioctl_meteor.h &&
3945   check_header machine/ioctl_bt848.h; } ||
3946 { check_header dev/video/meteor/ioctl_meteor.h &&
3947   check_header dev/video/bktr/ioctl_bt848.h; } ||
3948 check_header dev/ic/bt8xx.h
3949
3950 check_header sndio.h
3951 if check_struct sys/soundcard.h audio_buf_info bytes; then
3952     enable_safe sys/soundcard.h
3953 else
3954     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3955     #include <sys/soundcard.h>
3956     audio_buf_info abc;
3957 EOF
3958 fi
3959 check_header soundcard.h
3960
3961 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3962
3963 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3964     check_func jack_port_get_latency_range -ljack
3965
3966 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3967
3968
3969 enabled x11grab                                           &&
3970 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3971 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3972 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3973
3974 if ! disabled vaapi; then
3975     check_lib va/va.h vaInitialize -lva && {
3976         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3977         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3978     } || disable vaapi
3979 fi
3980
3981 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3982     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3983         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3984 fi
3985
3986 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3987 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3988 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3989
3990 # add some useful compiler flags if supported
3991 check_cflags -Wdeclaration-after-statement
3992 check_cflags -Wall
3993 check_cflags -Wno-parentheses
3994 check_cflags -Wno-switch
3995 check_cflags -Wno-format-zero-length
3996 check_cflags -Wdisabled-optimization
3997 check_cflags -Wpointer-arith
3998 check_cflags -Wredundant-decls
3999 check_cflags -Wno-pointer-sign
4000 check_cflags -Wwrite-strings
4001 check_cflags -Wtype-limits
4002 check_cflags -Wundef
4003 check_cflags -Wmissing-prototypes
4004 check_cflags -Wno-pointer-to-int-cast
4005 check_cflags -Wstrict-prototypes
4006 enabled extra_warnings && check_cflags -Winline
4007
4008 # add some linker flags
4009 check_ldflags -Wl,--warn-common
4010 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4011 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4012
4013 enabled xmm_clobber_test &&
4014     check_ldflags -Wl,--wrap,avcodec_open2              \
4015                   -Wl,--wrap,avcodec_decode_audio4      \
4016                   -Wl,--wrap,avcodec_decode_video2      \
4017                   -Wl,--wrap,avcodec_decode_subtitle2   \
4018                   -Wl,--wrap,avcodec_encode_audio2      \
4019                   -Wl,--wrap,avcodec_encode_video       \
4020                   -Wl,--wrap,avcodec_encode_subtitle    \
4021                   -Wl,--wrap,sws_scale ||
4022     disable xmm_clobber_test
4023
4024 echo "X{};" > $TMPV
4025 if test_ldflags -Wl,--version-script,$TMPV; then
4026     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4027     check_cc <<EOF && enable symver_asm_label
4028 void ff_foo(void) __asm__ ("av_foo@VERSION");
4029 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4030 EOF
4031     check_cc <<EOF && enable symver_gnu_asm
4032 __asm__(".symver ff_foo,av_foo@VERSION");
4033 void ff_foo(void) {}
4034 EOF
4035 fi
4036
4037 if [ -z "$optflags" ]; then
4038     if enabled small; then
4039         optflags=$cflags_size
4040     elif enabled optimizations; then
4041         optflags=$cflags_speed
4042     else
4043         optflags=$cflags_noopt
4044     fi
4045 fi
4046
4047 check_optflags(){
4048     check_cflags "$@"
4049     enabled lto && check_ldflags "$@"
4050 }
4051
4052
4053 if enabled lto; then
4054     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4055     check_cflags  -flto
4056     check_ldflags -flto $cpuflags
4057 fi
4058
4059 check_optflags $optflags
4060 check_optflags -fno-math-errno
4061 check_optflags -fno-signed-zeros
4062
4063 enabled ftrapv && check_cflags -ftrapv
4064
4065 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4066 int x;
4067 EOF
4068
4069
4070 if enabled icc; then
4071     # Just warnings, no remarks
4072     check_cflags -w1
4073     # -wd: Disable following warnings
4074     # 144, 167, 556: -Wno-pointer-sign
4075     # 1292: attribute "foo" ignored
4076     # 1419: external declaration in primary source file
4077     # 10006: ignoring unknown option -fno-signed-zeros
4078     # 10148: ignoring unknown option -Wno-parentheses
4079     # 10156: ignoring option '-W'; no argument required
4080     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4081     # 11030: Warning unknown option --as-needed
4082     # 10156: ignoring option '-export'; no argument required
4083     check_ldflags -wd10156,11030
4084     # Allow to compile with optimizations
4085     check_ldflags -march=$cpu
4086     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4087     enable ebp_available
4088     if enabled x86_32; then
4089         icc_version=$($cc -dumpversion)
4090         test ${icc_version%%.*} -ge 11 &&
4091             check_cflags -falign-stack=maintain-16-byte ||
4092             disable aligned_stack
4093     fi
4094 elif enabled ccc; then
4095     # disable some annoying warnings
4096     add_cflags -msg_disable bitnotint
4097     add_cflags -msg_disable mixfuncvoid
4098     add_cflags -msg_disable nonstandcast
4099     add_cflags -msg_disable unsupieee
4100 elif enabled gcc; then
4101     check_optflags -fno-tree-vectorize
4102     check_cflags -Werror=implicit-function-declaration
4103     check_cflags -Werror=missing-prototypes
4104     check_cflags -Werror=return-type
4105     check_cflags -Werror=vla
4106 elif enabled llvm_gcc; then
4107     check_cflags -mllvm -stack-alignment=16
4108 elif enabled clang; then
4109     check_cflags -mllvm -stack-alignment=16
4110     check_cflags -Qunused-arguments
4111     check_cflags -Werror=implicit-function-declaration
4112     check_cflags -Werror=missing-prototypes
4113     check_cflags -Werror=return-type
4114 elif enabled armcc; then
4115     # 2523: use of inline assembler is deprecated
4116     add_cflags -W${armcc_opt},--diag_suppress=2523
4117     add_cflags -W${armcc_opt},--diag_suppress=1207
4118     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4119     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4120     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4121     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4122 elif enabled tms470; then
4123     add_cflags -pds=824 -pds=837
4124 elif enabled pathscale; then
4125     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4126 elif enabled msvc; then
4127     enabled x86_32 && disable aligned_stack
4128 fi
4129
4130 case $target_os in
4131     osf1)
4132         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4133     ;;
4134     plan9)
4135         add_cppflags -Dmain=plan9_main
4136     ;;
4137 esac
4138
4139 enabled_any $THREADS_LIST      && enable threads
4140
4141 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4142
4143 check_deps $CONFIG_LIST       \
4144            $CONFIG_EXTRA      \
4145            $HAVE_LIST         \
4146            $ALL_COMPONENTS    \
4147
4148
4149 if test $target_os = "haiku"; then
4150     disable memalign
4151     disable posix_memalign
4152 fi
4153
4154 ! enabled_any memalign posix_memalign aligned_malloc &&
4155     enabled_any $need_memalign && enable memalign_hack
4156
4157 # add_dep lib dep
4158 # -> enable ${lib}_deps_${dep}
4159 # -> add $dep to ${lib}_deps only once
4160 add_dep() {
4161     lib=$1
4162     dep=$2
4163     enabled "${lib}_deps_${dep}" && return 0
4164     enable  "${lib}_deps_${dep}"
4165     prepend "${lib}_deps" $dep
4166 }
4167
4168 # merge deps lib components
4169 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4170 merge_deps() {
4171     lib=$1
4172     shift
4173     for comp in $*; do
4174         enabled $comp || continue
4175         eval "dep=\"\$${comp}_deps\""
4176         for d in $dep; do
4177             add_dep $lib $d
4178         done
4179     done
4180 }
4181
4182 merge_deps libavfilter $FILTER_LIST
4183
4184 echo "install prefix            $prefix"
4185 echo "source path               $source_path"
4186 echo "C compiler                $cc"
4187 echo "ARCH                      $arch ($cpu)"
4188 if test "$build_suffix" != ""; then
4189     echo "build suffix              $build_suffix"
4190 fi
4191 if test "$progs_suffix" != ""; then
4192     echo "progs suffix              $progs_suffix"
4193 fi
4194 if test "$extra_version" != ""; then
4195     echo "version string suffix     $extra_version"
4196 fi
4197 echo "big-endian                ${bigendian-no}"
4198 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4199 if enabled x86; then
4200     echo "${yasmexe}                      ${yasm-no}"
4201     echo "MMX enabled               ${mmx-no}"
4202     echo "MMXEXT enabled            ${mmxext-no}"
4203     echo "3DNow! enabled            ${amd3dnow-no}"
4204     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4205     echo "SSE enabled               ${sse-no}"
4206     echo "SSSE3 enabled             ${ssse3-no}"
4207     echo "AVX enabled               ${avx-no}"
4208     echo "FMA4 enabled              ${fma4-no}"
4209     echo "CMOV enabled              ${cmov-no}"
4210     echo "CMOV is fast              ${fast_cmov-no}"
4211     echo "EBX available             ${ebx_available-no}"
4212     echo "EBP available             ${ebp_available-no}"
4213 fi
4214 if enabled arm; then
4215     echo "ARMv5TE enabled           ${armv5te-no}"
4216     echo "ARMv6 enabled             ${armv6-no}"
4217     echo "ARMv6T2 enabled           ${armv6t2-no}"
4218     echo "VFP enabled               ${vfp-no}"
4219     echo "NEON enabled              ${neon-no}"
4220     echo "THUMB enabled             ${thumb-no}"
4221 fi
4222 if enabled mips; then
4223     echo "MIPS FPU enabled          ${mipsfpu-no}"
4224     echo "MIPS32R2 enabled          ${mips32r2-no}"
4225     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4226     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4227 fi
4228 if enabled ppc; then
4229     echo "AltiVec enabled           ${altivec-no}"
4230     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4231     echo "dcbzl available           ${dcbzl-no}"
4232 fi
4233 if enabled sparc; then
4234     echo "VIS enabled               ${vis-no}"
4235 fi
4236 echo "debug symbols             ${debug-no}"
4237 echo "strip symbols             ${stripping-no}"
4238 echo "optimize for size         ${small-no}"
4239 echo "optimizations             ${optimizations-no}"
4240 echo "static                    ${static-no}"
4241 echo "shared                    ${shared-no}"
4242 echo "postprocessing support    ${postproc-no}"
4243 echo "new filter support        ${avfilter-no}"
4244 echo "network support           ${network-no}"
4245 echo "threading support         ${thread_type-no}"
4246 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4247 echo "SDL support               ${sdl-no}"
4248 echo "libdxva2 enabled          ${dxva2-no}"
4249 echo "libva enabled             ${vaapi-no}"
4250 echo "libvdpau enabled          ${vdpau-no}"
4251 echo "AVISynth enabled          ${avisynth-no}"
4252 echo "frei0r enabled            ${frei0r-no}"
4253 echo "gnutls enabled            ${gnutls-no}"
4254 echo "libaacplus enabled        ${libaacplus-no}"
4255 echo "libass enabled            ${libass-no}"
4256 echo "libcaca enabled           ${libcaca-no}"
4257 echo "libcdio support           ${libcdio-no}"
4258 echo "libcelt enabled           ${libcelt-no}"
4259 echo "libdc1394 support         ${libdc1394-no}"
4260 echo "libfaac enabled           ${libfaac-no}"
4261 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4262 echo "libgsm enabled            ${libgsm-no}"
4263 echo "libiec61883 support       ${libiec61883-no}"
4264 echo "libilbc enabled           ${libilbc-no}"
4265 echo "libmodplug enabled        ${libmodplug-no}"
4266 echo "libmp3lame enabled        ${libmp3lame-no}"
4267 echo "libnut enabled            ${libnut-no}"
4268 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4269 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4270 echo "libopencv support         ${libopencv-no}"
4271 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4272 echo "libopus enabled           ${libopus-no}"
4273 echo "libpulse enabled          ${libpulse-no}"
4274 echo "librtmp enabled           ${librtmp-no}"
4275 echo "libschroedinger enabled   ${libschroedinger-no}"
4276 echo "libsoxr enabled           ${libsoxr-no}"
4277 echo "libspeex enabled          ${libspeex-no}"
4278 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4279 echo "libtheora enabled         ${libtheora-no}"
4280 echo "libtwolame enabled        ${libtwolame-no}"
4281 echo "libutvideo enabled        ${libutvideo-no}"
4282 echo "libv4l2 enabled           ${libv4l2-no}"
4283 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4284 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4285 echo "libvorbis enabled         ${libvorbis-no}"
4286 echo "libvpx enabled            ${libvpx-no}"
4287 echo "libx264 enabled           ${libx264-no}"
4288 echo "libxavs enabled           ${libxavs-no}"
4289 echo "libxvid enabled           ${libxvid-no}"
4290 echo "openal enabled            ${openal-no}"
4291 echo "openssl enabled           ${openssl-no}"
4292 echo "zlib enabled              ${zlib-no}"
4293 echo "bzlib enabled             ${bzlib-no}"
4294 echo "texi2html enabled         ${texi2html-no}"
4295 echo "perl enabled              ${perl-no}"
4296 echo "pod2man enabled           ${pod2man-no}"
4297 echo "makeinfo enabled          ${makeinfo-no}"
4298 test -n "$random_seed" &&
4299     echo "random seed               ${random_seed}"
4300 echo
4301
4302 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4303     echo "Enabled ${type}s:"
4304     eval list=\$$(toupper $type)_LIST
4305     print_enabled '_*' $list | sort | pr -r -3 -t
4306     echo
4307 done
4308
4309 license="LGPL version 2.1 or later"
4310 if enabled nonfree; then
4311     license="nonfree and unredistributable"
4312 elif enabled gplv3; then
4313     license="GPL version 3 or later"
4314 elif enabled lgplv3; then
4315     license="LGPL version 3 or later"
4316 elif enabled gpl; then
4317     license="GPL version 2 or later"
4318 fi
4319
4320 echo "License: $license"
4321
4322 echo "Creating config.mak and config.h..."
4323
4324 test -e Makefile || $ln_s "$source_path/Makefile" .
4325
4326 enabled stripping || strip="echo skipping strip"
4327
4328 config_files="$TMPH config.mak"
4329
4330 cat > config.mak <<EOF
4331 # Automatically generated by configure - do not modify!
4332 ifndef FFMPEG_CONFIG_MAK
4333 FFMPEG_CONFIG_MAK=1
4334 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4335 prefix=$prefix
4336 LIBDIR=\$(DESTDIR)$libdir
4337 SHLIBDIR=\$(DESTDIR)$shlibdir
4338 INCDIR=\$(DESTDIR)$incdir
4339 BINDIR=\$(DESTDIR)$bindir
4340 DATADIR=\$(DESTDIR)$datadir
4341 MANDIR=\$(DESTDIR)$mandir
4342 SRC_PATH=$source_path
4343 ifndef MAIN_MAKEFILE
4344 SRC_PATH:=\$(SRC_PATH:.%=..%)
4345 endif
4346 CC_IDENT=$cc_ident
4347 ARCH=$arch
4348 CC=$cc
4349 CXX=$cxx
4350 AS=$as
4351 LD=$ld
4352 DEPCC=$dep_cc
4353 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4354 DEPAS=$as
4355 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4356 YASM=$yasmexe
4357 DEPYASM=$yasmexe
4358 AR=$ar
4359 ARFLAGS=$arflags
4360 AR_O=$ar_o
4361 RANLIB=$ranlib
4362 CP=cp -p
4363 LN_S=$ln_s
4364 STRIP=$strip
4365 CPPFLAGS=$CPPFLAGS
4366 CFLAGS=$CFLAGS
4367 CXXFLAGS=$CXXFLAGS
4368 ASFLAGS=$ASFLAGS
4369 AS_C=$AS_C
4370 AS_O=$AS_O
4371 CC_C=$CC_C
4372 CC_E=$CC_E
4373 CC_O=$CC_O
4374 CXX_C=$CXX_C
4375 CXX_O=$CXX_O
4376 LD_O=$LD_O
4377 LD_LIB=$LD_LIB
4378 LD_PATH=$LD_PATH
4379 DLLTOOL=$dlltool
4380 LDFLAGS=$LDFLAGS
4381 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4382 SHFLAGS=$SHFLAGS
4383 YASMFLAGS=$YASMFLAGS
4384 BUILDSUF=$build_suffix
4385 PROGSSUF=$progs_suffix
4386 FULLNAME=$FULLNAME
4387 LIBPREF=$LIBPREF
4388 LIBSUF=$LIBSUF
4389 LIBNAME=$LIBNAME
4390 SLIBPREF=$SLIBPREF
4391 SLIBSUF=$SLIBSUF
4392 EXESUF=$EXESUF
4393 EXTRA_VERSION=$extra_version
4394 CCDEP=$CCDEP
4395 CXXDEP=$CXXDEP
4396 CCDEP_FLAGS=$CCDEP_FLAGS
4397 ASDEP=$ASDEP
4398 ASDEP_FLAGS=$ASDEP_FLAGS
4399 CC_DEPFLAGS=$CC_DEPFLAGS
4400 AS_DEPFLAGS=$AS_DEPFLAGS
4401 HOSTCC=$host_cc
4402 HOSTLD=$host_ld
4403 HOSTCFLAGS=$host_cflags
4404 HOSTEXESUF=$HOSTEXESUF
4405 HOSTLDFLAGS=$host_ldflags
4406 HOSTLIBS=$host_libs
4407 DEPHOSTCC=$host_cc
4408 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4409 HOSTCCDEP=$HOSTCCDEP
4410 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4411 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4412 HOSTCC_C=$HOSTCC_C
4413 HOSTCC_O=$HOSTCC_O
4414 HOSTLD_O=$HOSTLD_O
4415 TARGET_EXEC=$target_exec
4416 TARGET_PATH=$target_path
4417 LIBS-ffplay=$sdl_libs
4418 CFLAGS-ffplay=$sdl_cflags
4419 ZLIB=$($ldflags_filter -lz)
4420 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4421 EXTRALIBS=$extralibs
4422 COMPAT_OBJS=$compat_objs
4423 EXEOBJS=$exeobjs
4424 INSTALL=$install
4425 LIBTARGET=${LIBTARGET}
4426 SLIBNAME=${SLIBNAME}
4427 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4428 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4429 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4430 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4431 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4432 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4433 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4434 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4435 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4436 NOREDZONE_FLAGS=$noredzone_flags
4437 EOF
4438
4439 get_version(){
4440     lcname=lib${1}
4441     name=$(toupper $lcname)
4442     file=$source_path/$lcname/version.h
4443     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4444     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4445     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4446     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4447 }
4448
4449 map 'get_version $v' $LIBRARY_LIST
4450
4451 cat > $TMPH <<EOF
4452 /* Automatically generated by configure - do not modify! */
4453 #ifndef FFMPEG_CONFIG_H
4454 #define FFMPEG_CONFIG_H
4455 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4456 #define FFMPEG_LICENSE "$(c_escape $license)"
4457 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4458 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4459 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4460 #define av_restrict $_restrict
4461 #define EXTERN_PREFIX "${extern_prefix}"
4462 #define EXTERN_ASM ${extern_prefix}
4463 #define SLIBSUF "$SLIBSUF"
4464 #define HAVE_MMX2 HAVE_MMXEXT
4465 EOF
4466
4467 test -n "$assert_level" &&
4468     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4469
4470 test -n "$malloc_prefix" &&
4471     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4472
4473 if enabled yasm; then
4474     append config_files $TMPASM
4475     printf '' >$TMPASM
4476 fi
4477
4478 print_config ARCH_   "$config_files" $ARCH_LIST
4479 print_config HAVE_   "$config_files" $HAVE_LIST
4480 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4481                                      $CONFIG_EXTRA      \
4482                                      $ALL_COMPONENTS    \
4483
4484 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4485 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4486
4487 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4488 cp_if_changed $TMPH config.h
4489 touch .config
4490
4491 enabled yasm && cp_if_changed $TMPASM config.asm
4492
4493 cat > $TMPH <<EOF
4494 /* Generated by ffconf */
4495 #ifndef AVUTIL_AVCONFIG_H
4496 #define AVUTIL_AVCONFIG_H
4497 EOF
4498
4499 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4500
4501 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4502
4503 cp_if_changed $TMPH libavutil/avconfig.h
4504
4505 if test -n "$WARNINGS"; then
4506     printf "\n$WARNINGS"
4507     enabled fatal_warnings && exit 1
4508 fi
4509
4510 # build pkg-config files
4511
4512 pkgconfig_generate(){
4513     name=$1
4514     shortname=${name#lib}${build_suffix}
4515     comment=$2
4516     version=$3
4517     libs=$4
4518     requires=$5
4519     enabled ${name#lib} || return 0
4520     mkdir -p $name
4521     cat <<EOF > $name/$name.pc
4522 prefix=$prefix
4523 exec_prefix=\${prefix}
4524 libdir=$libdir
4525 includedir=$incdir
4526
4527 Name: $name
4528 Description: $comment
4529 Version: $version
4530 Requires: $(enabled shared || echo $requires)
4531 Requires.private: $(enabled shared && echo $requires)
4532 Conflicts:
4533 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4534 Libs.private: $(enabled shared && echo $libs)
4535 Cflags: -I\${includedir}
4536 EOF
4537
4538 mkdir -p doc/examples/pc-uninstalled
4539 includedir=${source_path}
4540 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4541     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4542 prefix=
4543 exec_prefix=
4544 libdir=\${pcfiledir}/../../../$name
4545 includedir=${includedir}
4546
4547 Name: $name
4548 Description: $comment
4549 Version: $version
4550 Requires: $requires
4551 Conflicts:
4552 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4553 Cflags: -I\${includedir}
4554 EOF
4555 }
4556
4557 libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
4558 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4559 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4560 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
4561 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4562 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4563 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4564 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4565
4566 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4567 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4568
4569 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4570 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4571 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4572 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4573 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4574 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4575 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4576 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4577 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4578
4579 fix_ffmpeg_remote(){
4580     git_remote_from=$1
4581     git_remote_to=$2
4582     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4583     if [ "$fixme_remote" != "" ]; then
4584         echolog "
4585 Outdated domain in git config, the official domain for ffmpeg git is since
4586 November 2011, source.ffmpeg.org, both the old and the new point to the same
4587 repository and server. To update it enter the following commands:
4588 "
4589         for remote in $fixme_remote; do
4590             echolog "git remote set-url $remote $git_remote_to"
4591         done
4592     fi
4593 }
4594
4595 if test -f "$source_path/.git/config"; then
4596     remote_from=git.videolan.org
4597     remote_to=source.ffmpeg.org
4598     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4599     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4600 fi