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   --disable-network        disable network support [no]
 134   --disable-dct            disable DCT code
 135   --disable-dwt            disable DWT code
 136   --disable-lsp            disable LSP code
 137   --disable-lzo            disable LZO decoder code
 138   --disable-mdct           disable MDCT code
 139   --disable-rdft           disable RDFT code
 140   --disable-fft            disable FFT code
 141
 142 Hardware accelerators:
 143   --enable-dxva2           enable DXVA2 code
 144   --enable-vaapi           enable VAAPI code
 145   --enable-vda             enable VDA code
 146   --enable-vdpau           enable VDPAU code
 147
 148 Individual component options:
 149   --disable-everything     disable all components listed below
 150   --disable-encoder=NAME   disable encoder NAME
 151   --enable-encoder=NAME    enable encoder NAME
 152   --disable-encoders       disable all encoders
 153   --disable-decoder=NAME   disable decoder NAME
 154   --enable-decoder=NAME    enable decoder NAME
 155   --disable-decoders       disable all decoders
 156   --disable-hwaccel=NAME   disable hwaccel NAME
 157   --enable-hwaccel=NAME    enable hwaccel NAME
 158   --disable-hwaccels       disable all hwaccels
 159   --disable-muxer=NAME     disable muxer NAME
 160   --enable-muxer=NAME      enable muxer NAME
 161   --disable-muxers         disable all muxers
 162   --disable-demuxer=NAME   disable demuxer NAME
 163   --enable-demuxer=NAME    enable demuxer NAME
 164   --disable-demuxers       disable all demuxers
 165   --enable-parser=NAME     enable parser NAME
 166   --disable-parser=NAME    disable parser NAME
 167   --disable-parsers        disable all parsers
 168   --enable-bsf=NAME        enable bitstream filter NAME
 169   --disable-bsf=NAME       disable bitstream filter NAME
 170   --disable-bsfs           disable all bitstream filters
 171   --enable-protocol=NAME   enable protocol NAME
 172   --disable-protocol=NAME  disable protocol NAME
 173   --disable-protocols      disable all protocols
 174   --enable-indev=NAME      enable input device NAME
 175   --disable-indev=NAME     disable input device NAME
 176   --disable-indevs         disable input devices
 177   --enable-outdev=NAME     enable output device NAME
 178   --disable-outdev=NAME    disable output device NAME
 179   --disable-outdevs        disable output devices
 180   --disable-devices        disable all devices
 181   --enable-filter=NAME     enable filter NAME
 182   --disable-filter=NAME    disable filter NAME
 183   --disable-filters        disable all filters
 184
 185 External library support:
 186   --enable-avisynth        enable reading of AVISynth script files [no]
 187   --enable-bzlib           enable bzlib [autodetect]
 188   --enable-fontconfig      enable fontconfig
 189   --enable-frei0r          enable frei0r video filtering
 190   --enable-gnutls          enable gnutls [no]
 191   --enable-iconv           enable iconv [autodetect]
 192   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 193   --enable-libass          enable libass subtitles rendering [no]
 194   --enable-libbluray       enable BluRay reading using libbluray [no]
 195   --enable-libcaca         enable textual display using libcaca
 196   --enable-libcelt         enable CELT decoding via libcelt [no]
 197   --enable-libcdio         enable audio CD grabbing with libcdio
 198   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 199                            and libraw1394 [no]
 200   --enable-libfaac         enable AAC encoding via libfaac [no]
 201   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 202   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 203   --enable-libfreetype     enable libfreetype [no]
 204   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 205   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 206   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 207   --enable-libmodplug      enable ModPlug via libmodplug [no]
 208   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 209   --enable-libnut          enable NUT (de)muxing via libnut,
 210                            native (de)muxer exists [no]
 211   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 212   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 213   --enable-libopencv       enable video filtering via libopencv [no]
 214   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 215   --enable-libopus         enable Opus decoding via libopus [no]
 216   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 217   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 218   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 219   --enable-libsoxr         enable Include libsoxr resampling [no]
 220   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 221   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 222   --enable-libtheora       enable Theora encoding via libtheora [no]
 223   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 224   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 225   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 226   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 227   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 228   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 229                            native implementation exists [no]
 230   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 231   --enable-libx264         enable H.264 encoding via x264 [no]
 232   --enable-libxavs         enable AVS encoding via xavs [no]
 233   --enable-libxvid         enable Xvid encoding via xvidcore,
 234                            native MPEG-4/Xvid encoder exists [no]
 235   --enable-openal          enable OpenAL 1.1 capture support [no]
 236   --enable-openssl         enable openssl [no]
 237   --enable-x11grab         enable X11 grabbing [no]
 238   --enable-zlib            enable zlib [autodetect]
 239
 240 Advanced options (experts only):
 241   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 242   --enable-cross-compile   assume a cross-compiler is used
 243   --sysroot=PATH           root of cross-build tree
 244   --sysinclude=PATH        location of cross-build system headers
 245   --target-os=OS           compiler targets OS [$target_os]
 246   --target-exec=CMD        command to run executables on target
 247   --target-path=DIR        path to view of build directory on target
 248   --toolchain=NAME         set tool defaults according to NAME
 249   --nm=NM                  use nm tool NM [$nm_default]
 250   --ar=AR                  use archive tool AR [$ar_default]
 251   --as=AS                  use assembler AS [$as_default]
 252   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 253   --cc=CC                  use C compiler CC [$cc_default]
 254   --cxx=CXX                use C compiler CXX [$cxx_default]
 255   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 256   --ld=LD                  use linker LD [$ld_default]
 257   --host-cc=HOSTCC         use host C compiler HOSTCC
 258   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 259   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 260   --host-ld=HOSTLD         use host linker HOSTLD
 261   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 262   --host-libs=HLIBS        use libs HLIBS when linking for host
 263   --host-os=OS             compiler host OS [$target_os]
 264   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 265   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 266   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 267   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 268   --extra-version=STRING   version string suffix []
 269   --optflags=OPTFLAGS      override optimization-related compiler flags
 270   --build-suffix=SUFFIX    library name suffix []
 271   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 272   --progs-suffix=SUFFIX    program name suffix []
 273   --arch=ARCH              select architecture [$arch]
 274   --cpu=CPU                select the minimum required CPU (affects
 275                            instruction selection, may crash on older CPUs)
 276   --enable-pic             build position-independent code
 277   --enable-sram            allow use of on-chip SRAM
 278   --enable-thumb           compile for Thumb instruction set
 279   --disable-symver         disable symbol versioning
 280   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 281   --disable-safe-bitstream-reader
 282                            disable buffer boundary checking in bitreaders
 283                            (faster, but may crash)
 284   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 285   --enable-lto             use link-time optimization
 286
 287 Optimization options (experts only):
 288   --disable-asm            disable all assembler optimizations
 289   --disable-altivec        disable AltiVec optimizations
 290   --disable-amd3dnow       disable 3DNow! optimizations
 291   --disable-amd3dnowext    disable 3DNow! extended optimizations
 292   --disable-mmx            disable MMX optimizations
 293   --disable-mmxext         disable MMXEXT optimizations
 294   --disable-sse            disable SSE optimizations
 295   --disable-sse2           disable SSE2 optimizations
 296   --disable-sse3           disable SSE3 optimizations
 297   --disable-ssse3          disable SSSE3 optimizations
 298   --disable-sse4           disable SSE4 optimizations
 299   --disable-sse42          disable SSE4.2 optimizations
 300   --disable-avx            disable AVX optimizations
 301   --disable-fma4           disable FMA4 optimizations
 302   --disable-armv5te        disable armv5te optimizations
 303   --disable-armv6          disable armv6 optimizations
 304   --disable-armv6t2        disable armv6t2 optimizations
 305   --disable-vfp            disable VFP optimizations
 306   --disable-neon           disable NEON optimizations
 307   --disable-vis            disable VIS optimizations
 308   --disable-inline-asm     disable use of inline assembler
 309   --disable-yasm           disable use of yasm assembler
 310   --disable-mips32r2       disable MIPS32R2 optimizations
 311   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 312   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 313   --disable-mipsfpu        disable floating point MIPS optimizations
 314   --disable-fast-unaligned consider unaligned accesses slow
 315
 316 Developer options (useful when working on FFmpeg itself):
 317   --enable-coverage        build with test coverage instrumentation
 318   --disable-debug          disable debugging symbols
 319   --enable-debug=LEVEL     set the debug level [$debuglevel]
 320   --disable-optimizations  disable compiler optimizations
 321   --enable-extra-warnings  enable more compiler warnings
 322   --disable-stripping      disable stripping of executables and shared libraries
 323   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 324                            2 causes a slowdown at runtime.
 325   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 326   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 327                            leaks and errors, using the specified valgrind binary.
 328                            Cannot be combined with --target-exec
 329   --enable-ftrapv          Trap arithmetic overflows
 330   --samples=PATH           location of test samples for FATE, if not set use
 331                            \$FATE_SAMPLES at make invocation time.
 332   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 333                            should be used only for debugging purposes)
 334   --enable-random          randomly enable/disable components
 335   --disable-random
 336   --enable-random=LIST     randomly enable/disable specific components or
 337   --disable-random=LIST    component groups. LIST is a comma-separated list
 338                            of NAME[:PROB] entries where NAME is a component
 339                            (group) and PROB the probability associated with
 340                            NAME (default 0.5).
 341   --random-seed=VALUE      seed value for --enable/disable-random
 342
 343 NOTE: Object files are built at the place where configure is launched.
 344 EOF
 345   exit 0
 346 }
 347
 348 quotes='""'
 349
 350 log(){
 351     echo "$@" >> $logfile
 352 }
 353
 354 log_file(){
 355     log BEGIN $1
 356     pr -n -t $1 >> $logfile
 357     log END $1
 358 }
 359
 360 echolog(){
 361     log "$@"
 362     echo "$@"
 363 }
 364
 365 warn(){
 366     log "WARNING: $*"
 367     WARNINGS="${WARNINGS}WARNING: $*\n"
 368 }
 369
 370 die(){
 371     echolog "$@"
 372     cat <<EOF
 373
 374 If you think configure made a mistake, make sure you are using the latest
 375 version from Git.  If the latest version fails, report the problem to the
 376 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 377 EOF
 378     if disabled logging; then
 379         cat <<EOF
 380 Rerun configure with logging enabled (do not use --disable-logging), and
 381 include the log this produces with your report.
 382 EOF
 383     else
 384         cat <<EOF
 385 Include the log file "$logfile" produced by configure as this will help
 386 solving the problem.
 387 EOF
 388     fi
 389     exit 1
 390 }
 391
 392 # Avoid locale weirdness, besides we really just want to translate ASCII.
 393 toupper(){
 394     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 395 }
 396
 397 tolower(){
 398     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 399 }
 400
 401 c_escape(){
 402     echo "$*" | sed 's/["\\]/\\\0/g'
 403 }
 404
 405 sh_quote(){
 406     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 407     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 408     echo "$v"
 409 }
 410
 411 cleanws(){
 412     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 413 }
 414
 415 filter(){
 416     pat=$1
 417     shift
 418     for v; do
 419         eval "case $v in $pat) echo $v ;; esac"
 420     done
 421 }
 422
 423 filter_out(){
 424     pat=$1
 425     shift
 426     for v; do
 427         eval "case $v in $pat) ;; *) echo $v ;; esac"
 428     done
 429 }
 430
 431 map(){
 432     m=$1
 433     shift
 434     for v; do eval $m; done
 435 }
 436
 437 add_suffix(){
 438     suffix=$1
 439     shift
 440     for v; do echo ${v}${suffix}; done
 441 }
 442
 443 set_all(){
 444     value=$1
 445     shift
 446     for var in $*; do
 447         eval $var=$value
 448     done
 449 }
 450
 451 set_weak(){
 452     value=$1
 453     shift
 454     for var; do
 455         eval : \${$var:=$value}
 456     done
 457 }
 458
 459 sanitize_var_name(){
 460     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 461 }
 462
 463 set_safe(){
 464     var=$1
 465     shift
 466     eval $(sanitize_var_name "$var")='$*'
 467 }
 468
 469 get_safe(){
 470     eval echo \$$(sanitize_var_name "$1")
 471 }
 472
 473 pushvar(){
 474     for var in $*; do
 475         eval level=\${${var}_level:=0}
 476         eval ${var}_${level}="\$$var"
 477         eval ${var}_level=$(($level+1))
 478     done
 479 }
 480
 481 popvar(){
 482     for var in $*; do
 483         eval level=\${${var}_level:-0}
 484         test $level = 0 && continue
 485         eval level=$(($level-1))
 486         eval $var="\${${var}_${level}}"
 487         eval ${var}_level=$level
 488         eval unset ${var}_${level}
 489     done
 490 }
 491
 492 enable(){
 493     set_all yes $*
 494 }
 495
 496 disable(){
 497     set_all no $*
 498 }
 499
 500 enable_weak(){
 501     set_weak yes $*
 502 }
 503
 504 disable_weak(){
 505     set_weak no $*
 506 }
 507
 508 enable_safe(){
 509     for var; do
 510         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 511     done
 512 }
 513
 514 disable_safe(){
 515     for var; do
 516         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 517     done
 518 }
 519
 520 do_enable_deep(){
 521     for var; do
 522         enabled $var && continue
 523         eval sel="\$${var}_select"
 524         eval sgs="\$${var}_suggest"
 525         pushvar var sgs
 526         enable_deep $sel
 527         popvar sgs
 528         enable_deep_weak $sgs
 529         popvar var
 530     done
 531 }
 532
 533 enable_deep(){
 534     do_enable_deep $*
 535     enable $*
 536 }
 537
 538 enable_deep_weak(){
 539     do_enable_deep $*
 540     enable_weak $*
 541 }
 542
 543 enabled(){
 544     test "${1#!}" = "$1" && op== || op=!=
 545     eval test "x\$${1#!}" $op "xyes"
 546 }
 547
 548 disabled(){
 549     test "${1#!}" = "$1" && op== || op=!=
 550     eval test "x\$${1#!}" $op "xno"
 551 }
 552
 553 enabled_all(){
 554     for opt; do
 555         enabled $opt || return 1
 556     done
 557 }
 558
 559 disabled_all(){
 560     for opt; do
 561         disabled $opt || return 1
 562     done
 563 }
 564
 565 enabled_any(){
 566     for opt; do
 567         enabled $opt && return 0
 568     done
 569 }
 570
 571 disabled_any(){
 572     for opt; do
 573         disabled $opt && return 0
 574     done
 575     return 1
 576 }
 577
 578 set_default(){
 579     for opt; do
 580         eval : \${$opt:=\$${opt}_default}
 581     done
 582 }
 583
 584 is_in(){
 585     value=$1
 586     shift
 587     for var in $*; do
 588         [ $var = $value ] && return 0
 589     done
 590     return 1
 591 }
 592
 593 do_check_deps(){
 594     for cfg; do
 595         cfg="${cfg#!}"
 596         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 597         disabled ${cfg}_checking && continue
 598         enable ${cfg}_checking
 599         append allopts $cfg
 600
 601         eval dep_all="\$${cfg}_deps"
 602         eval dep_any="\$${cfg}_deps_any"
 603         eval dep_sel="\$${cfg}_select"
 604         eval dep_sgs="\$${cfg}_suggest"
 605         eval dep_ifa="\$${cfg}_if"
 606         eval dep_ifn="\$${cfg}_if_any"
 607
 608         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 609         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 610         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 611
 612         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 613         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 614         enabled_all  $dep_all || disable $cfg
 615         enabled_any  $dep_any || disable $cfg
 616         disabled_any $dep_sel && disable $cfg
 617
 618         if enabled $cfg; then
 619             enable_deep $dep_sel
 620             enable_deep_weak $dep_sgs
 621         fi
 622
 623         disable ${cfg}_checking
 624     done
 625 }
 626
 627 check_deps(){
 628     unset allopts
 629
 630     do_check_deps "$@"
 631
 632     for cfg in $allopts; do
 633         enabled $cfg || continue
 634         eval dep_extralibs="\$${cfg}_extralibs"
 635         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 636     done
 637 }
 638
 639 print_config(){
 640     pfx=$1
 641     files=$2
 642     shift 2
 643     map 'eval echo "$v \${$v:-no}"' "$@" |
 644     awk "BEGIN { split(\"$files\", files) }
 645         {
 646             c = \"$pfx\" toupper(\$1);
 647             v = \$2;
 648             sub(/yes/, 1, v);
 649             sub(/no/,  0, v);
 650             for (f in files) {
 651                 file = files[f];
 652                 if (file ~ /\\.h\$/) {
 653                     printf(\"#define %s %d\\n\", c, v) >>file;
 654                 } else if (file ~ /\\.asm\$/) {
 655                     printf(\"%%define %s %d\\n\", c, v) >>file;
 656                 } else if (file ~ /\\.mak\$/) {
 657                     n = -v ? \"\" : \"!\";
 658                     printf(\"%s%s=yes\\n\", n, c) >>file;
 659                 }
 660             }
 661         }"
 662 }
 663
 664 print_enabled(){
 665     suf=$1
 666     shift
 667     for v; do
 668         enabled $v && printf "%s\n" ${v%$suf};
 669     done
 670 }
 671
 672 append(){
 673     var=$1
 674     shift
 675     eval "$var=\"\$$var $*\""
 676 }
 677
 678 prepend(){
 679     var=$1
 680     shift
 681     eval "$var=\"$* \$$var\""
 682 }
 683
 684 add_cppflags(){
 685     append CPPFLAGS "$@"
 686 }
 687
 688 add_cflags(){
 689     append CFLAGS $($cflags_filter "$@")
 690 }
 691
 692 add_cxxflags(){
 693     append CXXFLAGS $($cflags_filter "$@")
 694 }
 695
 696 add_asflags(){
 697     append ASFLAGS $($asflags_filter "$@")
 698 }
 699
 700 add_ldflags(){
 701     append LDFLAGS $($ldflags_filter "$@")
 702 }
 703
 704 add_extralibs(){
 705     prepend extralibs $($ldflags_filter "$@")
 706 }
 707
 708 add_host_cppflags(){
 709     append host_cppflags "$@"
 710 }
 711
 712 add_host_cflags(){
 713     append host_cflags $($host_cflags_filter "$@")
 714 }
 715
 716 add_host_ldflags(){
 717     append host_ldflags $($host_ldflags_filter "$@")
 718 }
 719
 720 add_compat(){
 721     append compat_objs $1
 722     shift
 723     map 'add_cppflags -D$v' "$@"
 724 }
 725
 726 check_cmd(){
 727     log "$@"
 728     "$@" >> $logfile 2>&1
 729 }
 730
 731 cc_o(){
 732     eval printf '%s\\n' $CC_O
 733 }
 734
 735 cc_e(){
 736     eval printf '%s\\n' $CC_E
 737 }
 738
 739 check_cc(){
 740     log check_cc "$@"
 741     cat > $TMPC
 742     log_file $TMPC
 743     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 744 }
 745
 746 check_cxx(){
 747     log check_cxx "$@"
 748     cat > $TMPCPP
 749     log_file $TMPCPP
 750     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 751 }
 752
 753 check_cpp(){
 754     log check_cpp "$@"
 755     cat > $TMPC
 756     log_file $TMPC
 757     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 758 }
 759
 760 as_o(){
 761     eval printf '%s\\n' $AS_O
 762 }
 763
 764 check_as(){
 765     log check_as "$@"
 766     cat > $TMPS
 767     log_file $TMPS
 768     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 769 }
 770
 771 check_inline_asm(){
 772     log check_inline_asm "$@"
 773     name="$1"
 774     code="$2"
 775     shift 2
 776     disable $name
 777     check_cc "$@" <<EOF && enable $name
 778 void foo(void){ __asm__ volatile($code); }
 779 EOF
 780 }
 781
 782 check_insn(){
 783     log check_insn "$@"
 784     check_inline_asm ${1}_inline "\"$2\""
 785     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 786 }
 787
 788 check_yasm(){
 789     log check_yasm "$@"
 790     echo "$1" > $TMPS
 791     log_file $TMPS
 792     shift 1
 793     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 794 }
 795
 796 ld_o(){
 797     eval printf '%s\\n' $LD_O
 798 }
 799
 800 check_ld(){
 801     log check_ld "$@"
 802     type=$1
 803     shift 1
 804     flags=$(filter_out '-l*|*.so' $@)
 805     libs=$(filter '-l*|*.so' $@)
 806     check_$type $($cflags_filter $flags) || return
 807     flags=$($ldflags_filter $flags)
 808     libs=$($ldflags_filter $libs)
 809     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 810 }
 811
 812 check_code(){
 813     log check_code "$@"
 814     check=$1
 815     headers=$2
 816     code=$3
 817     shift 3
 818     {
 819         for hdr in $headers; do
 820             echo "#include <$hdr>"
 821         done
 822         echo "int main(void) { $code; return 0; }"
 823     } | check_$check "$@"
 824 }
 825
 826 check_cppflags(){
 827     log check_cppflags "$@"
 828     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 829 int x;
 830 EOF
 831 }
 832
 833 check_cflags(){
 834     log check_cflags "$@"
 835     set -- $($cflags_filter "$@")
 836     check_cc "$@" <<EOF && append CFLAGS "$@"
 837 int x;
 838 EOF
 839 }
 840
 841 check_cxxflags(){
 842     log check_cxxflags "$@"
 843     set -- $($cflags_filter "$@")
 844     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 845 int x;
 846 EOF
 847 }
 848
 849 test_ldflags(){
 850     log test_ldflags "$@"
 851     check_ld "cc" "$@" <<EOF
 852 int main(void){ return 0; }
 853 EOF
 854 }
 855
 856 check_ldflags(){
 857     log check_ldflags "$@"
 858     test_ldflags "$@" && add_ldflags "$@"
 859 }
 860
 861 check_header(){
 862     log check_header "$@"
 863     header=$1
 864     shift
 865     disable_safe $header
 866     check_cpp "$@" <<EOF && enable_safe $header
 867 #include <$header>
 868 int x;
 869 EOF
 870 }
 871
 872 check_func(){
 873     log check_func "$@"
 874     func=$1
 875     shift
 876     disable $func
 877     check_ld "cc" "$@" <<EOF && enable $func
 878 extern int $func();
 879 int main(void){ $func(); }
 880 EOF
 881 }
 882
 883 check_mathfunc(){
 884     log check_mathfunc "$@"
 885     func=$1
 886     narg=$2
 887     shift 2
 888     test $narg = 2 && args="f, g" || args="f"
 889     disable $func
 890     check_ld "cc" "$@" <<EOF && enable $func
 891 #include <math.h>
 892 float foo(float f, float g) { return $func($args); }
 893 int main(void){ return (int) foo; }
 894 EOF
 895 }
 896
 897 check_func_headers(){
 898     log check_func_headers "$@"
 899     headers=$1
 900     funcs=$2
 901     shift 2
 902     {
 903         for hdr in $headers; do
 904             echo "#include <$hdr>"
 905         done
 906         for func in $funcs; do
 907             echo "long check_$func(void) { return (long) $func; }"
 908         done
 909         echo "int main(void) { return 0; }"
 910     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 911 }
 912
 913 check_class_headers_cpp(){
 914     log check_class_headers_cpp "$@"
 915     headers=$1
 916     classes=$2
 917     shift 2
 918     {
 919         for hdr in $headers; do
 920             echo "#include <$hdr>"
 921         done
 922         echo "int main(void) { "
 923         i=1
 924         for class in $classes; do
 925             echo "$class obj$i;"
 926             i=$(expr $i + 1)
 927         done
 928         echo "return 0; }"
 929     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 930 }
 931
 932 check_cpp_condition(){
 933     log check_cpp_condition "$@"
 934     header=$1
 935     condition=$2
 936     shift 2
 937     check_cpp "$@" <<EOF
 938 #include <$header>
 939 #if !($condition)
 940 #error "unsatisfied condition: $condition"
 941 #endif
 942 EOF
 943 }
 944
 945 check_lib(){
 946     log check_lib "$@"
 947     header="$1"
 948     func="$2"
 949     shift 2
 950     check_header $header && check_func $func "$@" && add_extralibs "$@"
 951 }
 952
 953 check_lib2(){
 954     log check_lib2 "$@"
 955     headers="$1"
 956     funcs="$2"
 957     shift 2
 958     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 959 }
 960
 961 check_lib_cpp(){
 962     log check_lib_cpp "$@"
 963     headers="$1"
 964     classes="$2"
 965     shift 2
 966     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 967 }
 968
 969 check_pkg_config(){
 970     log check_pkg_config "$@"
 971     pkg="$1"
 972     headers="$2"
 973     funcs="$3"
 974     shift 3
 975     $pkg_config --exists $pkg 2>/dev/null || return
 976     pkg_cflags=$($pkg_config --cflags $pkg)
 977     pkg_libs=$($pkg_config --libs $pkg)
 978     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 979         set_safe ${pkg}_cflags $pkg_cflags   &&
 980         set_safe ${pkg}_libs   $pkg_libs
 981 }
 982
 983 check_exec(){
 984     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 985 }
 986
 987 check_exec_crash(){
 988     code=$(cat)
 989
 990     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 991     # are safe but may not be available everywhere.  Thus we use
 992     # raise(SIGTERM) instead.  The check is run in a subshell so we
 993     # can redirect the "Terminated" message from the shell.  SIGBUS
 994     # is not defined by standard C so it is used conditionally.
 995
 996     (check_exec "$@") >> $logfile 2>&1 <<EOF
 997 #include <signal.h>
 998 static void sighandler(int sig){
 999     raise(SIGTERM);
1000 }
1001 int func(void){
1002     $code
1003 }
1004 int (*func_ptr)(void) = func;
1005 int main(void){
1006     signal(SIGILL, sighandler);
1007     signal(SIGFPE, sighandler);
1008     signal(SIGSEGV, sighandler);
1009 #ifdef SIGBUS
1010     signal(SIGBUS, sighandler);
1011 #endif
1012     return func_ptr();
1013 }
1014 EOF
1015 }
1016
1017 check_type(){
1018     log check_type "$@"
1019     headers=$1
1020     type=$2
1021     shift 2
1022     disable_safe "$type"
1023     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1024 }
1025
1026 check_struct(){
1027     log check_struct "$@"
1028     headers=$1
1029     struct=$2
1030     member=$3
1031     shift 3
1032     disable_safe "${struct}_${member}"
1033     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1034         enable_safe "${struct}_${member}"
1035 }
1036
1037 check_builtin(){
1038     log check_builtin "$@"
1039     name=$1
1040     headers=$2
1041     builtin=$3
1042     shift 3
1043     disable "$name"
1044     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1045 }
1046
1047 require(){
1048     name="$1"
1049     header="$2"
1050     func="$3"
1051     shift 3
1052     check_lib $header $func "$@" || die "ERROR: $name not found"
1053 }
1054
1055 require2(){
1056     name="$1"
1057     headers="$2"
1058     func="$3"
1059     shift 3
1060     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1061 }
1062
1063 require_cpp(){
1064     name="$1"
1065     headers="$2"
1066     classes="$3"
1067     shift 3
1068     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1069 }
1070
1071 require_pkg_config(){
1072     pkg="$1"
1073     check_pkg_config "$@" || die "ERROR: $pkg not found"
1074     add_cflags    $(get_safe ${pkg}_cflags)
1075     add_extralibs $(get_safe ${pkg}_libs)
1076 }
1077
1078 hostcc_o(){
1079     eval printf '%s\\n' $HOSTCC_O
1080 }
1081
1082 check_host_cc(){
1083     log check_host_cc "$@"
1084     cat > $TMPC
1085     log_file $TMPC
1086     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1087 }
1088
1089 check_host_cppflags(){
1090     log check_host_cppflags "$@"
1091     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1092 int x;
1093 EOF
1094 }
1095
1096 check_host_cflags(){
1097     log check_host_cflags "$@"
1098     set -- $($host_cflags_filter "$@")
1099     check_host_cc "$@" <<EOF && append host_cflags "$@"
1100 int x;
1101 EOF
1102 }
1103
1104 apply(){
1105     file=$1
1106     shift
1107     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1108 }
1109
1110 cp_if_changed(){
1111     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1112     mkdir -p "$(dirname $2)"
1113     $cp_f "$1" "$2"
1114 }
1115
1116 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1117 # system-dependent things.
1118
1119 COMPONENT_LIST="
1120     bsfs
1121     decoders
1122     demuxers
1123     encoders
1124     filters
1125     hwaccels
1126     indevs
1127     muxers
1128     outdevs
1129     parsers
1130     protocols
1131 "
1132
1133 EXTERNAL_LIBRARY_LIST="
1134     avisynth
1135     bzlib
1136     crystalhd
1137     fontconfig
1138     frei0r
1139     gnutls
1140     iconv
1141     libaacplus
1142     libass
1143     libbluray
1144     libcaca
1145     libcdio
1146     libcelt
1147     libdc1394
1148     libfaac
1149     libfdk_aac
1150     libflite
1151     libfreetype
1152     libgsm
1153     libiec61883
1154     libilbc
1155     libmodplug
1156     libmp3lame
1157     libnut
1158     libopencore_amrnb
1159     libopencore_amrwb
1160     libopencv
1161     libopenjpeg
1162     libopus
1163     libpulse
1164     librtmp
1165     libschroedinger
1166     libsoxr
1167     libspeex
1168     libstagefright_h264
1169     libtheora
1170     libtwolame
1171     libutvideo
1172     libv4l2
1173     libvo_aacenc
1174     libvo_amrwbenc
1175     libvorbis
1176     libvpx
1177     libx264
1178     libxavs
1179     libxvid
1180     openal
1181     openssl
1182     x11grab
1183     zlib
1184 "
1185
1186 DOCUMENT_LIST="
1187     doc
1188     htmlpages
1189     manpages
1190     podpages
1191     txtpages
1192 "
1193
1194 HWACCEL_LIST="
1195     dxva2
1196     vaapi
1197     vda
1198     vdpau
1199 "
1200
1201 LIBRARY_LIST="
1202     avcodec
1203     avdevice
1204     avfilter
1205     avformat
1206     avresample
1207     avutil
1208     postproc
1209     swresample
1210     swscale
1211 "
1212
1213 PROGRAM_LIST="
1214     ffplay
1215     ffprobe
1216     ffserver
1217     ffmpeg
1218 "
1219
1220 CONFIG_LIST="
1221     $COMPONENT_LIST
1222     $DOCUMENT_LIST
1223     $EXTERNAL_LIBRARY_LIST
1224     $HWACCEL_LIST
1225     $LIBRARY_LIST
1226     $PROGRAM_LIST
1227     dct
1228     dwt
1229     fast_unaligned
1230     fft
1231     ftrapv
1232     gpl
1233     gray
1234     hardcoded_tables
1235     incompatible_fork_abi
1236     lsp
1237     lzo
1238     mdct
1239     memalign_hack
1240     memory_poisoning
1241     network
1242     nonfree
1243     pic
1244     rdft
1245     runtime_cpudetect
1246     safe_bitstream_reader
1247     shared
1248     small
1249     sram
1250     static
1251     swscale_alpha
1252     thumb
1253     version3
1254     xmm_clobber_test
1255 "
1256
1257 THREADS_LIST='
1258     pthreads
1259     w32threads
1260     os2threads
1261 '
1262
1263 ARCH_LIST='
1264     aarch64
1265     alpha
1266     arm
1267     avr32
1268     avr32_ap
1269     avr32_uc
1270     bfin
1271     ia64
1272     m68k
1273     mips
1274     mips64
1275     parisc
1276     ppc
1277     ppc64
1278     s390
1279     sh4
1280     sparc
1281     sparc64
1282     tilegx
1283     tilepro
1284     tomi
1285     x86
1286     x86_32
1287     x86_64
1288 '
1289
1290 ARCH_EXT_LIST_ARM='
1291     armv5te
1292     armv6
1293     armv6t2
1294     neon
1295     vfp
1296     vfpv3
1297 '
1298
1299 ARCH_EXT_LIST_X86='
1300     amd3dnow
1301     amd3dnowext
1302     avx
1303     fma4
1304     mmx
1305     mmxext
1306     sse
1307     sse2
1308     sse3
1309     sse4
1310     sse42
1311     ssse3
1312 '
1313
1314 ARCH_EXT_LIST="
1315     $ARCH_EXT_LIST_ARM
1316     $ARCH_EXT_LIST_X86
1317     altivec
1318     ppc4xx
1319     vis
1320     mipsfpu
1321     mips32r2
1322     mipsdspr1
1323     mipsdspr2
1324 "
1325
1326 HAVE_LIST_CMDLINE='
1327     inline_asm
1328     symver
1329     yasm
1330 '
1331
1332 HAVE_LIST_PUB='
1333     bigendian
1334     fast_unaligned
1335     incompatible_fork_abi
1336 '
1337
1338 MATH_FUNCS="
1339     atanf
1340     atan2f
1341     cbrt
1342     cbrtf
1343     cosf
1344     exp2
1345     exp2f
1346     expf
1347     isinf
1348     isnan
1349     ldexpf
1350     llrint
1351     llrintf
1352     log2
1353     log2f
1354     log10f
1355     lrint
1356     lrintf
1357     powf
1358     rint
1359     round
1360     roundf
1361     sinf
1362     trunc
1363     truncf
1364 "
1365
1366 HAVE_LIST="
1367     $ARCH_EXT_LIST
1368     $(add_suffix _external $ARCH_EXT_LIST)
1369     $(add_suffix _inline   $ARCH_EXT_LIST)
1370     $HAVE_LIST_CMDLINE
1371     $HAVE_LIST_PUB
1372     $THREADS_LIST
1373     $MATH_FUNCS
1374     access
1375     aligned_malloc
1376     aligned_stack
1377     alsa_asoundlib_h
1378     altivec_h
1379     arpa_inet_h
1380     asm_mod_q
1381     asm_mod_y
1382     asm_types_h
1383     attribute_may_alias
1384     attribute_packed
1385     cdio_paranoia_h
1386     cdio_paranoia_paranoia_h
1387     clock_gettime
1388     closesocket
1389     cmov
1390     CommandLineToArgvW
1391     cpunop
1392     CryptGenRandom
1393     dcbzl
1394     dev_bktr_ioctl_bt848_h
1395     dev_bktr_ioctl_meteor_h
1396     dev_ic_bt8xx_h
1397     dev_video_bktr_ioctl_bt848_h
1398     dev_video_meteor_ioctl_meteor_h
1399     direct_h
1400     dlfcn_h
1401     dlopen
1402     dos_paths
1403     dxva_h
1404     ebp_available
1405     ebx_available
1406     fast_64bit
1407     fast_clz
1408     fast_cmov
1409     fcntl
1410     fork
1411     getaddrinfo
1412     gethrtime
1413     getopt
1414     GetProcessAffinityMask
1415     GetProcessMemoryInfo
1416     GetProcessTimes
1417     GetSystemTimeAsFileTime
1418     getrusage
1419     getservbyport
1420     gettimeofday
1421     glob
1422     gnu_as
1423     gsm_h
1424     ibm_asm
1425     inet_aton
1426     io_h
1427     isatty
1428     jack_port_get_latency_range
1429     kbhit
1430     ldbrx
1431     libdc1394_1
1432     libdc1394_2
1433     local_aligned_16
1434     local_aligned_8
1435     localtime_r
1436     loongson
1437     lzo1x_999_compress
1438     machine_ioctl_bt848_h
1439     machine_ioctl_meteor_h
1440     machine_rw_barrier
1441     makeinfo
1442     malloc_h
1443     MapViewOfFile
1444     memalign
1445     MemoryBarrier
1446     mkstemp
1447     mm_empty
1448     mmap
1449     mprotect
1450     msvcrt
1451     nanosleep
1452     openjpeg_1_5_openjpeg_h
1453     PeekNamedPipe
1454     perl
1455     pod2man
1456     poll_h
1457     posix_memalign
1458     pthread_cancel
1459     rdtsc
1460     rsync_contimeout
1461     sched_getaffinity
1462     sdl
1463     SetConsoleTextAttribute
1464     setmode
1465     setrlimit
1466     Sleep
1467     sndio_h
1468     socklen_t
1469     soundcard_h
1470     strerror_r
1471     struct_addrinfo
1472     struct_group_source_req
1473     struct_ip_mreq_source
1474     struct_ipv6_mreq
1475     struct_pollfd
1476     struct_rusage_ru_maxrss
1477     struct_sctp_event_subscribe
1478     struct_sockaddr_in6
1479     struct_sockaddr_sa_len
1480     struct_sockaddr_storage
1481     struct_v4l2_frmivalenum_discrete
1482     symver_asm_label
1483     symver_gnu_asm
1484     sync_val_compare_and_swap
1485     sysconf
1486     sysctl
1487     sys_mman_h
1488     sys_param_h
1489     sys_resource_h
1490     sys_select_h
1491     sys_soundcard_h
1492     sys_time_h
1493     sys_videoio_h
1494     termios_h
1495     texi2html
1496     threads
1497     unistd_h
1498     usleep
1499     vfp_args
1500     VirtualAlloc
1501     windows_h
1502     winsock2_h
1503     xform_asm
1504     xmm_clobbers
1505 "
1506
1507 # options emitted with CONFIG_ prefix but not available on the command line
1508 CONFIG_EXTRA="
1509     aandcttables
1510     ac3dsp
1511     audio_frame_queue
1512     dsputil
1513     error_resilience
1514     frame_thread_encoder
1515     gcrypt
1516     golomb
1517     gplv3
1518     h264chroma
1519     h264dsp
1520     h264pred
1521     h264qpel
1522     hpeldsp
1523     huffman
1524     lgplv3
1525     lpc
1526     mpegaudio
1527     mpegaudiodsp
1528     mpegvideo
1529     mpegvideoenc
1530     nettle
1531     rangecoder
1532     rtpdec
1533     rtpenc_chain
1534     sinewin
1535     videodsp
1536     vp3dsp
1537 "
1538
1539 CMDLINE_SELECT="
1540     $ARCH_EXT_LIST
1541     $CONFIG_LIST
1542     $HAVE_LIST_CMDLINE
1543     $THREADS_LIST
1544     asm
1545     coverage
1546     cross_compile
1547     debug
1548     extra_warnings
1549     logging
1550     lto
1551     optimizations
1552     stripping
1553 "
1554
1555 PATHS_LIST='
1556     bindir
1557     datadir
1558     incdir
1559     libdir
1560     mandir
1561     prefix
1562     shlibdir
1563 '
1564
1565 CMDLINE_SET="
1566     $PATHS_LIST
1567     ar
1568     arch
1569     as
1570     assert_level
1571     build_suffix
1572     cc
1573     cpu
1574     cross_prefix
1575     cxx
1576     dep_cc
1577     extra_version
1578     host_cc
1579     host_cflags
1580     host_ld
1581     host_ldflags
1582     host_libs
1583     host_os
1584     install
1585     ld
1586     logfile
1587     malloc_prefix
1588     nm
1589     optflags
1590     pkg_config
1591     progs_suffix
1592     random_seed
1593     samples
1594     strip
1595     sysinclude
1596     sysroot
1597     target_exec
1598     target_os
1599     target_path
1600     toolchain
1601     valgrind
1602     yasmexe
1603 "
1604
1605 CMDLINE_APPEND="
1606     extra_cflags
1607     extra_cxxflags
1608     host_cppflags
1609 "
1610
1611 # code dependency declarations
1612
1613 # architecture extensions
1614
1615 armv5te_deps="arm"
1616 armv6_deps="arm"
1617 armv6t2_deps="arm"
1618 neon_deps="arm"
1619 vfp_deps="arm"
1620 vfpv3_deps="vfp"
1621
1622 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1623
1624 mipsfpu_deps="mips"
1625 mips32r2_deps="mips"
1626 mipsdspr1_deps="mips"
1627 mipsdspr2_deps="mips"
1628
1629 altivec_deps="ppc"
1630 ppc4xx_deps="ppc"
1631
1632 vis_deps="sparc"
1633
1634 x86_64_suggest="cmov fast_cmov"
1635
1636 amd3dnow_deps="mmx"
1637 amd3dnowext_deps="amd3dnow"
1638 mmx_deps="x86"
1639 mmxext_deps="mmx"
1640 sse_deps="mmxext"
1641 sse2_deps="sse"
1642 sse3_deps="sse2"
1643 ssse3_deps="sse3"
1644 sse4_deps="ssse3"
1645 sse42_deps="sse4"
1646 avx_deps="sse42"
1647 fma4_deps="avx"
1648
1649 mmx_external_deps="yasm"
1650 mmx_inline_deps="inline_asm"
1651 mmx_suggest="mmx_external mmx_inline"
1652
1653 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1654     eval dep=\$${ext}_deps
1655     eval ${ext}_external_deps='"${dep}_external"'
1656     eval ${ext}_inline_deps='"${dep}_inline"'
1657     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1658 done
1659
1660 aligned_stack_if_any="ppc x86"
1661 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1662 fast_clz_if_any="alpha avr32 mips ppc x86"
1663 fast_unaligned_if_any="ppc x86"
1664
1665 inline_asm_deps="!tms470"
1666 need_memalign="altivec neon sse"
1667
1668 symver_if_any="symver_asm_label symver_gnu_asm"
1669
1670 log2_deps="!msvcrt"
1671
1672 # subsystems
1673 dct_select="rdft"
1674 error_resilience_select="dsputil"
1675 frame_thread_encoder_deps="encoders threads"
1676 mdct_select="fft"
1677 rdft_select="fft"
1678 mpegaudio_select="mpegaudiodsp"
1679 mpegaudiodsp_select="dct"
1680 mpegvideo_select="dsputil error_resilience h264chroma hpeldsp videodsp"
1681 mpegvideoenc_select="mpegvideo"
1682
1683 # decoders / encoders
1684 aac_decoder_select="mdct sinewin"
1685 aac_encoder_select="audio_frame_queue mdct sinewin"
1686 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1687 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1688 ac3_encoder_select="mdct ac3dsp dsputil"
1689 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1690 alac_encoder_select="lpc"
1691 als_decoder_select="dsputil"
1692 amrnb_decoder_select="lsp"
1693 amrwb_decoder_select="lsp"
1694 amv_encoder_select="aandcttables"
1695 ape_decoder_select="dsputil"
1696 asv_decoder_select="dsputil"
1697 atrac1_decoder_select="mdct sinewin"
1698 atrac3_decoder_select="mdct"
1699 bink_decoder_select="dsputil hpeldsp"
1700 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1701 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1702 cavs_decoder_select="dsputil golomb h264chroma mpegvideo videodsp"
1703 cllc_decoder_select="dsputil"
1704 comfortnoise_encoder_select="lpc"
1705 cook_decoder_select="dsputil mdct sinewin"
1706 cscd_decoder_select="lzo"
1707 cscd_decoder_suggest="zlib"
1708 dca_decoder_select="mdct"
1709 dirac_decoder_select="dsputil dwt golomb videodsp"
1710 dnxhd_decoder_select="dsputil"
1711 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1712 dvvideo_decoder_select="dsputil"
1713 dxa_decoder_select="zlib"
1714 eac3_decoder_select="ac3_decoder"
1715 eac3_encoder_select="ac3_encoder"
1716 eamad_decoder_select="aandcttables dsputil mpegvideo"
1717 eatgq_decoder_select="aandcttables"
1718 eatqi_decoder_select="aandcttables mpegvideo"
1719 exr_decoder_select="zlib"
1720 ffv1_decoder_select="dsputil golomb rangecoder"
1721 ffv1_encoder_select="rangecoder"
1722 ffvhuff_encoder_select="huffman"
1723 flac_decoder_select="golomb"
1724 flac_encoder_select="dsputil golomb lpc"
1725 flashsv_decoder_select="zlib"
1726 flashsv_encoder_select="zlib"
1727 flashsv2_encoder_select="zlib"
1728 flashsv2_decoder_select="zlib"
1729 flv_decoder_select="h263_decoder"
1730 flv_encoder_select="h263_encoder"
1731 fourxm_decoder_select="dsputil"
1732 fraps_decoder_select="dsputil huffman"
1733 g729_decoder_select="dsputil"
1734 h261_decoder_select="error_resilience mpegvideo"
1735 h261_encoder_select="aandcttables mpegvideoenc"
1736 h263_decoder_select="error_resilience h263_parser mpegvideo"
1737 h263_encoder_select="aandcttables mpegvideoenc"
1738 h263i_decoder_select="h263_decoder"
1739 h263p_encoder_select="h263_encoder"
1740 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1741 huffyuv_decoder_select="dsputil"
1742 huffyuv_encoder_select="huffman"
1743 iac_decoder_select="fft mdct sinewin"
1744 imc_decoder_select="dsputil fft mdct sinewin"
1745 indeo3_decoder_select="hpeldsp"
1746 interplay_video_decoder_select="hpeldsp"
1747 jpegls_decoder_select="golomb"
1748 jpegls_encoder_select="golomb"
1749 jv_decoder_select="dsputil"
1750 lagarith_decoder_select="dsputil"
1751 ljpeg_encoder_select="aandcttables mpegvideoenc"
1752 loco_decoder_select="golomb"
1753 mdec_decoder_select="dsputil error_resilience mpegvideo"
1754 mimic_decoder_select="dsputil hpeldsp"
1755 mjpeg_decoder_select="dsputil hpeldsp"
1756 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1757 mlp_decoder_select="dsputil mlp_parser"
1758 motionpixels_decoder_select="dsputil"
1759 mp1_decoder_select="mpegaudio"
1760 mp1float_decoder_select="mpegaudio"
1761 mp2_decoder_select="mpegaudio"
1762 mp2float_decoder_select="mpegaudio"
1763 mp3_decoder_select="mpegaudio"
1764 mp3adu_decoder_select="mpegaudio"
1765 mp3adufloat_decoder_select="mpegaudio"
1766 mp3float_decoder_select="mpegaudio"
1767 mp3on4_decoder_select="mpegaudio"
1768 mp3on4float_decoder_select="mpegaudio"
1769 mpc7_decoder_select="dsputil mpegaudiodsp"
1770 mpc8_decoder_select="dsputil mpegaudiodsp"
1771 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1772 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1773 mpeg1video_decoder_select="error_resilience mpegvideo"
1774 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1775 mpeg2video_decoder_select="error_resilience mpegvideo"
1776 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1777 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1778 mpeg4_encoder_select="h263_encoder"
1779 msmpeg4v1_decoder_select="h263_decoder"
1780 msmpeg4v1_encoder_select="h263_encoder"
1781 msmpeg4v2_decoder_select="h263_decoder"
1782 msmpeg4v2_encoder_select="h263_encoder"
1783 msmpeg4v3_decoder_select="h263_decoder"
1784 msmpeg4v3_encoder_select="h263_encoder"
1785 mss2_decoder_select="error_resilience vc1_decoder"
1786 nellymoser_decoder_select="mdct sinewin"
1787 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1788 nuv_decoder_select="dsputil lzo"
1789 png_decoder_select="zlib"
1790 png_encoder_select="dsputil zlib"
1791 prores_decoder_select="dsputil"
1792 qcelp_decoder_select="lsp"
1793 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1794 ra_144_encoder_select="audio_frame_queue lpc"
1795 ralf_decoder_select="golomb"
1796 rtjpeg_decoder_select="dsputil"
1797 rv10_decoder_select="error_resilience h263_decoder"
1798 rv10_encoder_select="h263_encoder"
1799 rv20_decoder_select="error_resilience h263_decoder"
1800 rv20_encoder_select="h263_encoder"
1801 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1802 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1803 shorten_decoder_select="golomb"
1804 sipr_decoder_select="lsp"
1805 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1806 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp error_resilience mpegvideoenc rangecoder"
1807 sonic_decoder_select="golomb"
1808 sonic_encoder_select="golomb"
1809 sonic_ls_encoder_select="golomb"
1810 svq1_decoder_select="hpeldsp"
1811 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1812 svq3_decoder_select="dsputil error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1813 svq3_decoder_suggest="zlib"
1814 tak_decoder_select="dsputil"
1815 theora_decoder_select="vp3_decoder"
1816 tiff_decoder_suggest="zlib"
1817 tiff_encoder_suggest="zlib"
1818 truehd_decoder_select="mlp_parser"
1819 truemotion2_decoder_select="dsputil"
1820 tscc_decoder_select="zlib"
1821 twinvq_decoder_select="mdct lsp sinewin"
1822 utvideo_decoder_select="dsputil"
1823 utvideo_encoder_select="huffman"
1824 vble_decoder_select="dsputil"
1825 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1826 vc1image_decoder_select="vc1_decoder"
1827 vorbis_decoder_select="mdct"
1828 vorbis_encoder_select="mdct"
1829 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1830 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1831 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1832 vp6a_decoder_select="vp6_decoder"
1833 vp6f_decoder_select="vp6_decoder"
1834 vp8_decoder_select="h264pred videodsp"
1835 wmapro_decoder_select="mdct sinewin"
1836 wmav1_decoder_select="mdct sinewin"
1837 wmav1_encoder_select="mdct sinewin"
1838 wmav2_decoder_select="mdct sinewin"
1839 wmav2_encoder_select="mdct sinewin"
1840 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1841 wmv1_decoder_select="h263_decoder"
1842 wmv1_encoder_select="h263_encoder"
1843 wmv2_decoder_select="h263_decoder videodsp"
1844 wmv2_encoder_select="h263_encoder"
1845 wmv3_decoder_select="vc1_decoder"
1846 wmv3image_decoder_select="wmv3_decoder"
1847 zerocodec_decoder_select="zlib"
1848 zlib_decoder_select="zlib"
1849 zlib_encoder_select="zlib"
1850 zmbv_decoder_select="zlib"
1851 zmbv_encoder_select="zlib"
1852
1853 # hardware accelerators
1854 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1855 dxva2_deps="dxva2api_h"
1856 vaapi_deps="va_va_h"
1857 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1858 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1859 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1860
1861 h263_vaapi_hwaccel_deps="vaapi"
1862 h263_vaapi_hwaccel_select="h263_decoder"
1863 h263_vdpau_hwaccel_deps="vdpau"
1864 h263_vdpau_hwaccel_select="h263_decoder"
1865 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1866 h264_dxva2_hwaccel_deps="dxva2"
1867 h264_dxva2_hwaccel_select="h264_decoder"
1868 h264_vaapi_hwaccel_deps="vaapi"
1869 h264_vaapi_hwaccel_select="h264_decoder"
1870 h264_vda_decoder_deps="vda"
1871 h264_vda_decoder_select="h264_decoder"
1872 h264_vda_hwaccel_deps="vda"
1873 h264_vda_hwaccel_select="h264_decoder"
1874 h264_vdpau_decoder_deps="vdpau"
1875 h264_vdpau_decoder_select="h264_decoder"
1876 h264_vdpau_hwaccel_deps="vdpau"
1877 h264_vdpau_hwaccel_select="h264_decoder"
1878 mpeg_vdpau_decoder_deps="vdpau"
1879 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1880 mpeg1_vdpau_decoder_deps="vdpau"
1881 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1882 mpeg1_vdpau_hwaccel_deps="vdpau"
1883 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1884 mpeg2_crystalhd_decoder_select="crystalhd"
1885 mpeg2_dxva2_hwaccel_deps="dxva2"
1886 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1887 mpeg2_vaapi_hwaccel_deps="vaapi"
1888 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1889 mpeg2_vdpau_hwaccel_deps="vdpau"
1890 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1891 mpeg4_crystalhd_decoder_select="crystalhd"
1892 mpeg4_vaapi_hwaccel_deps="vaapi"
1893 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1894 mpeg4_vdpau_decoder_deps="vdpau"
1895 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1896 mpeg4_vdpau_hwaccel_deps="vdpau"
1897 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1898 msmpeg4_crystalhd_decoder_select="crystalhd"
1899 vc1_crystalhd_decoder_select="crystalhd"
1900 vc1_dxva2_hwaccel_deps="dxva2"
1901 vc1_dxva2_hwaccel_select="vc1_decoder"
1902 vc1_vaapi_hwaccel_deps="vaapi"
1903 vc1_vaapi_hwaccel_select="vc1_decoder"
1904 vc1_vdpau_decoder_deps="vdpau"
1905 vc1_vdpau_decoder_select="vc1_decoder"
1906 vc1_vdpau_hwaccel_deps="vdpau"
1907 vc1_vdpau_hwaccel_select="vc1_decoder"
1908 wmv3_crystalhd_decoder_select="crystalhd"
1909 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1910 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1911 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1912 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1913
1914 # parsers
1915 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1916 mpeg4video_parser_select="error_resilience mpegvideo"
1917 mpegvideo_parser_select="error_resilience mpegvideo"
1918 vc1_parser_select="mpegvideo"
1919
1920 # external libraries
1921 libaacplus_encoder_deps="libaacplus"
1922 libcelt_decoder_deps="libcelt"
1923 libfaac_encoder_deps="libfaac"
1924 libfaac_encoder_select="audio_frame_queue"
1925 libfdk_aac_encoder_deps="libfdk_aac"
1926 libfdk_aac_encoder_select="audio_frame_queue"
1927 libgsm_decoder_deps="libgsm"
1928 libgsm_encoder_deps="libgsm"
1929 libgsm_ms_decoder_deps="libgsm"
1930 libgsm_ms_encoder_deps="libgsm"
1931 libilbc_decoder_deps="libilbc"
1932 libilbc_encoder_deps="libilbc"
1933 libmodplug_demuxer_deps="libmodplug"
1934 libmp3lame_encoder_deps="libmp3lame"
1935 libmp3lame_encoder_select="audio_frame_queue"
1936 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1937 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1938 libopencore_amrnb_encoder_select="audio_frame_queue"
1939 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1940 libopenjpeg_decoder_deps="libopenjpeg"
1941 libopenjpeg_encoder_deps="libopenjpeg"
1942 libopus_decoder_deps="libopus"
1943 libopus_encoder_deps="libopus"
1944 libopus_encoder_select="audio_frame_queue"
1945 libschroedinger_decoder_deps="libschroedinger"
1946 libschroedinger_encoder_deps="libschroedinger"
1947 libspeex_decoder_deps="libspeex"
1948 libspeex_encoder_deps="libspeex"
1949 libspeex_encoder_select="audio_frame_queue"
1950 libstagefright_h264_decoder_deps="libstagefright_h264"
1951 libtheora_encoder_deps="libtheora"
1952 libtwolame_encoder_deps="libtwolame"
1953 libvo_aacenc_encoder_deps="libvo_aacenc"
1954 libvo_aacenc_encoder_select="audio_frame_queue"
1955 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1956 libvorbis_decoder_deps="libvorbis"
1957 libvorbis_encoder_deps="libvorbis"
1958 libvorbis_encoder_select="audio_frame_queue"
1959 libvpx_vp8_decoder_deps="libvpx"
1960 libvpx_vp8_encoder_deps="libvpx"
1961 libvpx_vp9_decoder_deps="libvpx"
1962 libvpx_vp9_encoder_deps="libvpx"
1963 libx264_encoder_deps="libx264"
1964 libx264rgb_encoder_deps="libx264"
1965 libxavs_encoder_deps="libxavs"
1966 libxvid_encoder_deps="libxvid"
1967 libutvideo_decoder_deps="libutvideo"
1968 libutvideo_encoder_deps="libutvideo"
1969
1970 # demuxers / muxers
1971 ac3_demuxer_select="ac3_parser"
1972 asf_stream_muxer_select="asf_muxer"
1973 avisynth_demuxer_deps="avisynth"
1974 dirac_demuxer_select="dirac_parser"
1975 dts_demuxer_select="dca_parser"
1976 dtshd_demuxer_select="dca_parser"
1977 eac3_demuxer_select="ac3_parser"
1978 f4v_muxer_select="mov_muxer"
1979 flac_demuxer_select="flac_parser"
1980 ipod_muxer_select="mov_muxer"
1981 ismv_muxer_select="mov_muxer"
1982 libnut_demuxer_deps="libnut"
1983 libnut_muxer_deps="libnut"
1984 matroska_audio_muxer_select="matroska_muxer"
1985 matroska_demuxer_suggest="bzlib lzo zlib"
1986 mov_demuxer_suggest="zlib"
1987 mov_muxer_select="rtpenc_chain"
1988 mp3_demuxer_select="mpegaudio_parser"
1989 mp4_muxer_select="mov_muxer"
1990 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1991 mpegtsraw_demuxer_select="mpegts_demuxer"
1992 mxf_d10_muxer_select="mxf_muxer"
1993 ogg_demuxer_select="golomb"
1994 psp_muxer_select="mov_muxer"
1995 rtp_demuxer_select="sdp_demuxer"
1996 rtp_muxer_select="mpegvideo"
1997 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1998 rtsp_demuxer_select="http_protocol rtpdec"
1999 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2000 sap_demuxer_select="sdp_demuxer"
2001 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2002 sdp_demuxer_select="rtpdec"
2003 smoothstreaming_muxer_select="ismv_muxer"
2004 spdif_muxer_select="aac_parser"
2005 tak_demuxer_select="tak_parser"
2006 tg2_muxer_select="mov_muxer"
2007 tgp_muxer_select="mov_muxer"
2008 vobsub_demuxer_select="mpegps_demuxer"
2009 w64_demuxer_deps="wav_demuxer"
2010 w64_muxer_deps="wav_muxer"
2011
2012 # indevs / outdevs
2013 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2014 alsa_outdev_deps="alsa_asoundlib_h"
2015 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2016 caca_outdev_deps="libcaca"
2017 dshow_indev_deps="IBaseFilter"
2018 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2019 dv1394_indev_deps="dv1394 dv_demuxer"
2020 fbdev_indev_deps="linux_fb_h"
2021 iec61883_indev_deps="libiec61883"
2022 jack_indev_deps="jack_jack_h sem_timedwait"
2023 lavfi_indev_deps="avfilter"
2024 libcdio_indev_deps="libcdio"
2025 libdc1394_indev_deps="libdc1394"
2026 libv4l2_indev_deps="libv4l2"
2027 openal_indev_deps="openal"
2028 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2029 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2030 pulse_indev_deps="libpulse"
2031 sdl_outdev_deps="sdl"
2032 sndio_indev_deps="sndio_h"
2033 sndio_outdev_deps="sndio_h"
2034 v4l_indev_deps="linux_videodev_h"
2035 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2036 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2037 vfwcap_indev_extralibs="-lavicap32"
2038 x11grab_indev_deps="x11grab"
2039
2040 # protocols
2041 bluray_protocol_deps="libbluray"
2042 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2043 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2044 ffrtmpcrypt_protocol_select="tcp_protocol"
2045 ffrtmphttp_protocol_deps="!librtmp_protocol"
2046 ffrtmphttp_protocol_select="http_protocol"
2047 gopher_protocol_select="network"
2048 httpproxy_protocol_select="tcp_protocol"
2049 http_protocol_select="tcp_protocol"
2050 https_protocol_select="tls_protocol"
2051 librtmp_protocol_deps="librtmp"
2052 librtmpe_protocol_deps="librtmp"
2053 librtmps_protocol_deps="librtmp"
2054 librtmpt_protocol_deps="librtmp"
2055 librtmpte_protocol_deps="librtmp"
2056 mmsh_protocol_select="http_protocol"
2057 mmst_protocol_select="network"
2058 rtmp_protocol_deps="!librtmp_protocol"
2059 rtmp_protocol_select="tcp_protocol"
2060 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2061 rtmps_protocol_deps="!librtmp_protocol"
2062 rtmps_protocol_select="tls_protocol"
2063 rtmpt_protocol_select="ffrtmphttp_protocol"
2064 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2065 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2066 rtp_protocol_select="udp_protocol"
2067 sctp_protocol_deps="struct_sctp_event_subscribe"
2068 sctp_protocol_select="network"
2069 srtp_protocol_select="rtp_protocol"
2070 tcp_protocol_select="network"
2071 tls_protocol_deps_any="openssl gnutls"
2072 tls_protocol_select="tcp_protocol"
2073 udp_protocol_select="network"
2074
2075 # filters
2076 aconvert_filter_deps="swresample"
2077 amovie_filter_deps="avcodec avformat"
2078 aresample_filter_deps="swresample"
2079 ass_filter_deps="libass"
2080 asyncts_filter_deps="avresample"
2081 atempo_filter_deps="avcodec rdft"
2082 blackframe_filter_deps="gpl"
2083 boxblur_filter_deps="gpl"
2084 colormatrix_filter_deps="gpl"
2085 cropdetect_filter_deps="gpl"
2086 decimate_filter_deps="gpl avcodec"
2087 delogo_filter_deps="gpl"
2088 deshake_filter_deps="avcodec"
2089 drawtext_filter_deps="libfreetype"
2090 ebur128_filter_deps="gpl"
2091 flite_filter_deps="libflite"
2092 frei0r_filter_deps="frei0r dlopen"
2093 frei0r_filter_extralibs='$ldl'
2094 frei0r_src_filter_deps="frei0r dlopen"
2095 frei0r_src_filter_extralibs='$ldl'
2096 geq_filter_deps="gpl"
2097 histeq_filter_deps="gpl"
2098 hqdn3d_filter_deps="gpl"
2099 hue_filter_deps="gpl"
2100 kerndeint_filter_deps="gpl"
2101 movie_filter_deps="avcodec avformat"
2102 mp_filter_deps="gpl avcodec swscale inline_asm"
2103 mptestsrc_filter_deps="gpl"
2104 negate_filter_deps="lut_filter"
2105 noise_filter_deps="gpl"
2106 resample_filter_deps="avresample"
2107 ocv_filter_deps="libopencv"
2108 pan_filter_deps="swresample"
2109 pp_filter_deps="gpl postproc"
2110 removelogo_filter_deps="avcodec avformat swscale"
2111 scale_filter_deps="swscale"
2112 smartblur_filter_deps="gpl swscale"
2113 showspectrum_filter_deps="avcodec rdft"
2114 stereo3d_filter_deps="gpl"
2115 subtitles_filter_deps="avformat avcodec libass"
2116 super2xsai_filter_deps="gpl"
2117 tinterlace_filter_deps="gpl"
2118 yadif_filter_deps="gpl"
2119 pixfmts_super2xsai_test_deps="super2xsai_filter"
2120 tinterlace_merge_test_deps="tinterlace_filter"
2121 tinterlace_pad_test_deps="tinterlace_filter"
2122
2123 # libraries
2124 avcodec_deps="avutil"
2125 avdevice_deps="avutil avcodec avformat"
2126 avfilter_deps="avutil"
2127 avformat_deps="avutil avcodec"
2128 avresample_deps="avutil"
2129 postproc_deps="avutil gpl"
2130 swscale_deps="avutil"
2131
2132 # programs
2133 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2134 ffmpeg_select="format_filter aformat_filter
2135                setpts_filter null_filter anull_filter"
2136 ffplay_deps="avcodec avformat swscale swresample sdl"
2137 ffplay_select="rdft crop_filter"
2138 ffprobe_deps="avcodec avformat"
2139 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2140 ffserver_extralibs='$ldl'
2141
2142 # documentation
2143 podpages_deps="perl"
2144 manpages_deps="perl pod2man"
2145 htmlpages_deps="texi2html"
2146 txtpages_deps="makeinfo"
2147 doc_deps_any="manpages htmlpages podpages txtpages"
2148
2149 # default parameters
2150
2151 logfile="config.log"
2152
2153 # installation paths
2154 prefix_default="/usr/local"
2155 bindir_default='${prefix}/bin'
2156 datadir_default='${prefix}/share/ffmpeg'
2157 incdir_default='${prefix}/include'
2158 libdir_default='${prefix}/lib'
2159 mandir_default='${prefix}/share/man'
2160 shlibdir_default="$libdir_default"
2161
2162 # toolchain
2163 ar_default="ar"
2164 cc_default="gcc"
2165 cxx_default="g++"
2166 host_cc_default="gcc"
2167 cp_f="cp -f"
2168 install="install"
2169 ln_s="ln -s -f"
2170 nm_default="nm -g"
2171 objformat="elf"
2172 pkg_config_default=pkg-config
2173 ranlib="ranlib"
2174 strip_default="strip"
2175 yasmexe_default="yasm"
2176
2177 nogas=":"
2178
2179 # machine
2180 arch_default=$(uname -m)
2181 cpu="generic"
2182
2183 # OS
2184 target_os_default=$(tolower $(uname -s))
2185 host_os=$target_os_default
2186
2187 # configurable options
2188 enable $PROGRAM_LIST
2189 enable $DOCUMENT_LIST
2190 enable $(filter_out avresample $LIBRARY_LIST)
2191 enable stripping
2192
2193 enable asm
2194 enable debug
2195 enable doc
2196 enable optimizations
2197 enable runtime_cpudetect
2198 enable safe_bitstream_reader
2199 enable static
2200 enable swscale_alpha
2201
2202 # By default, enable only those hwaccels that have no external dependencies.
2203 enable dxva2 vdpau
2204
2205 # build settings
2206 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2207 FFSERVERLDFLAGS=-Wl,-E
2208 LIBPREF="lib"
2209 LIBSUF=".a"
2210 FULLNAME='$(NAME)$(BUILDSUF)'
2211 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2212 SLIBPREF="lib"
2213 SLIBSUF=".so"
2214 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2215 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2216 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2217 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2218 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2219 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2220
2221 asflags_filter=echo
2222 cflags_filter=echo
2223 ldflags_filter=echo
2224
2225 AS_C='-c'
2226 AS_O='-o $@'
2227 CC_C='-c'
2228 CC_E='-E -o $@'
2229 CC_O='-o $@'
2230 CXX_C='-c'
2231 CXX_O='-o $@'
2232 LD_O='-o $@'
2233 LD_LIB='-l%'
2234 LD_PATH='-L'
2235 HOSTCC_C='-c'
2236 HOSTCC_O='-o $@'
2237 HOSTLD_O='-o $@'
2238
2239 host_cflags='-O3 -g'
2240 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2241 host_libs='-lm'
2242 host_cflags_filter=echo
2243 host_ldflags_filter=echo
2244
2245 target_path='$(CURDIR)'
2246
2247 # since the object filename is not given with the -MM flag, the compiler
2248 # is only able to print the basename, and we must add the path ourselves
2249 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2250 DEPFLAGS='-MM'
2251
2252 # find source path
2253 if test -f configure; then
2254     source_path=.
2255 else
2256     source_path=$(cd $(dirname "$0"); pwd)
2257     echo "$source_path" | grep -q '[[:blank:]]' &&
2258         die "Out of tree builds are impossible with whitespace in source path."
2259     test -e "$source_path/config.h" &&
2260         die "Out of tree builds are impossible with config.h in source dir."
2261 fi
2262
2263 for v in "$@"; do
2264     r=${v#*=}
2265     l=${v%"$r"}
2266     r=$(sh_quote "$r")
2267     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2268 done
2269
2270 find_things(){
2271     thing=$1
2272     pattern=$2
2273     file=$source_path/$3
2274     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2275 }
2276
2277 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2278 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2279 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2280 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2281 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2282 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2283 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2284 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2285 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2286 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2287 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2288
2289 ALL_COMPONENTS="
2290     $BSF_LIST
2291     $DECODER_LIST
2292     $DEMUXER_LIST
2293     $ENCODER_LIST
2294     $FILTER_LIST
2295     $HWACCEL_LIST
2296     $INDEV_LIST
2297     $MUXER_LIST
2298     $OUTDEV_LIST
2299     $PARSER_LIST
2300     $PROTOCOL_LIST
2301 "
2302
2303 for n in $COMPONENT_LIST; do
2304     v=$(toupper ${n%s})_LIST
2305     eval enable \$$v
2306     eval ${n}_if_any="\$$v"
2307 done
2308
2309 enable $ARCH_EXT_LIST
2310
2311 die_unknown(){
2312     echo "Unknown option \"$1\"."
2313     echo "See $0 --help for available options."
2314     exit 1
2315 }
2316
2317 print_3_columns() {
2318     cat | tr ' ' '\n' | sort | pr -r -3 -t
2319 }
2320
2321 show_list() {
2322     suffix=_$1
2323     shift
2324     echo $* | sed s/$suffix//g | print_3_columns
2325     exit 0
2326 }
2327
2328 rand_list(){
2329     IFS=', '
2330     set -- $*
2331     unset IFS
2332     for thing; do
2333         comp=${thing%:*}
2334         prob=${thing#$comp}
2335         prob=${prob#:}
2336         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2337         echo "prob ${prob:-0.5}"
2338         printf '%s\n' $comp
2339     done
2340 }
2341
2342 do_random(){
2343     action=$1
2344     shift
2345     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2346     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2347 }
2348
2349 for opt do
2350     optval="${opt#*=}"
2351     case "$opt" in
2352         --extra-ldflags=*)
2353             add_ldflags $optval
2354         ;;
2355         --extra-libs=*)
2356             add_extralibs $optval
2357         ;;
2358         --disable-devices)
2359             disable $INDEV_LIST $OUTDEV_LIST
2360         ;;
2361         --enable-debug=*)
2362             debuglevel="$optval"
2363         ;;
2364         --disable-programs)
2365             disable $PROGRAM_LIST
2366         ;;
2367         --disable-everything)
2368             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2369         ;;
2370         --disable-all)
2371             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2372             disable $LIBRARY_LIST $PROGRAM_LIST doc
2373         ;;
2374         --enable-random|--disable-random)
2375             action=${opt%%-random}
2376             do_random ${action#--} $COMPONENT_LIST
2377         ;;
2378         --enable-random=*|--disable-random=*)
2379             action=${opt%%-random=*}
2380             do_random ${action#--} $optval
2381         ;;
2382         --enable-*=*|--disable-*=*)
2383             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2384             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2385             eval list=\$$(toupper $thing)_LIST
2386             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2387             list=$(filter "$name" $list)
2388             [ "$list" = "" ] && warn "Option $opt did not match anything"
2389             $action $list
2390         ;;
2391         --enable-?*|--disable-?*)
2392             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2393             if is_in $option $COMPONENT_LIST; then
2394                 test $action = disable && action=unset
2395                 eval $action \$$(toupper ${option%s})_LIST
2396             elif is_in $option $CMDLINE_SELECT; then
2397                 $action $option
2398             else
2399                 die_unknown $opt
2400             fi
2401         ;;
2402         --list-*)
2403             NAME="${opt#--list-}"
2404             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2405             NAME=${NAME%s}
2406             eval show_list $NAME \$$(toupper $NAME)_LIST
2407         ;;
2408         --help|-h) show_help
2409         ;;
2410         --fatal-warnings) enable fatal_warnings
2411         ;;
2412         *)
2413             optname="${opt%%=*}"
2414             optname="${optname#--}"
2415             optname=$(echo "$optname" | sed 's/-/_/g')
2416             if is_in $optname $CMDLINE_SET; then
2417                 eval $optname='$optval'
2418             elif is_in $optname $CMDLINE_APPEND; then
2419                 append $optname "$optval"
2420             else
2421                 die_unknown $opt
2422             fi
2423         ;;
2424     esac
2425 done
2426
2427 disabled logging && logfile=/dev/null
2428
2429 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2430 set >> $logfile
2431
2432 test -n "$cross_prefix" && enable cross_compile
2433
2434 if enabled cross_compile; then
2435     test -n "$arch" && test -n "$target_os" ||
2436         die "Must specify target arch and OS when cross-compiling"
2437 fi
2438
2439 ar_default="${cross_prefix}${ar_default}"
2440 cc_default="${cross_prefix}${cc_default}"
2441 cxx_default="${cross_prefix}${cxx_default}"
2442 nm_default="${cross_prefix}${nm_default}"
2443 pkg_config_default="${cross_prefix}${pkg_config_default}"
2444 ranlib="${cross_prefix}${ranlib}"
2445 strip_default="${cross_prefix}${strip_default}"
2446
2447 sysinclude_default="${sysroot}/usr/include"
2448
2449 case "$toolchain" in
2450     clang-asan)
2451         cc_default="clang"
2452         add_cflags  -faddress-sanitizer
2453         add_ldflags -faddress-sanitizer
2454     ;;
2455     clang-tsan)
2456         cc_default="clang"
2457         add_cflags  -fthread-sanitizer
2458         add_ldflags -fthread-sanitizer
2459     ;;
2460     msvc)
2461         cc_default="c99wrap cl"
2462         ld_default="c99wrap link"
2463         nm_default="dumpbin -symbols"
2464         ar_default="lib"
2465         target_os_default="win32"
2466     ;;
2467     ?*)
2468         die "Unknown toolchain $toolchain"
2469     ;;
2470 esac
2471
2472 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2473 enabled cross_compile || host_cc_default=$cc
2474 set_default host_cc
2475
2476 if ! $pkg_config --version >/dev/null 2>&1; then
2477     warn "$pkg_config not found, library detection may fail."
2478     pkg_config=false
2479 fi
2480
2481 exesuf() {
2482     case $1 in
2483         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2484     esac
2485 }
2486
2487 EXESUF=$(exesuf $target_os)
2488 HOSTEXESUF=$(exesuf $host_os)
2489
2490 # set temporary file name
2491 : ${TMPDIR:=$TEMPDIR}
2492 : ${TMPDIR:=$TMP}
2493 : ${TMPDIR:=/tmp}
2494
2495 if ! check_cmd mktemp -u XXXXXX; then
2496     # simple replacement for missing mktemp
2497     # NOT SAFE FOR GENERAL USE
2498     mktemp(){
2499         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2500     }
2501 fi
2502
2503 tmpfile(){
2504     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2505         (set -C; exec > $tmp) 2>/dev/null ||
2506         die "Unable to create temporary file in $TMPDIR."
2507     append TMPFILES $tmp
2508     eval $1=$tmp
2509 }
2510
2511 trap 'rm -f -- $TMPFILES' EXIT
2512
2513 tmpfile TMPASM .asm
2514 tmpfile TMPC   .c
2515 tmpfile TMPCPP .cpp
2516 tmpfile TMPE   $EXESUF
2517 tmpfile TMPH   .h
2518 tmpfile TMPO   .o
2519 tmpfile TMPS   .S
2520 tmpfile TMPSH  .sh
2521 tmpfile TMPV   .ver
2522
2523 unset -f mktemp
2524
2525 chmod +x $TMPE
2526
2527 # make sure we can execute files in $TMPDIR
2528 cat > $TMPSH 2>> $logfile <<EOF
2529 #! /bin/sh
2530 EOF
2531 chmod +x $TMPSH >> $logfile 2>&1
2532 if ! $TMPSH >> $logfile 2>&1; then
2533     cat <<EOF
2534 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2535 variable to another directory and make sure that it is not mounted noexec.
2536 EOF
2537     die "Sanity test failed."
2538 fi
2539
2540 ccc_flags(){
2541     for flag; do
2542         case $flag in
2543             -std=c99)           echo -c99                       ;;
2544             -mcpu=*)            echo -arch ${flag#*=}           ;;
2545             -mieee)             echo -ieee                      ;;
2546             -O*|-fast)          echo $flag                      ;;
2547             -fno-math-errno)    echo -assume nomath_errno       ;;
2548             -g)                 echo -g3                        ;;
2549             -Wall)              echo -msg_enable level2         ;;
2550             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2551             -Wl,*)              echo $flag                      ;;
2552             -f*|-W*)                                            ;;
2553             *)                  echo $flag                      ;;
2554         esac
2555    done
2556 }
2557
2558 msvc_flags(){
2559     for flag; do
2560         case $flag in
2561             -fomit-frame-pointer) echo -Oy ;;
2562             -g)                   echo -Z7 ;;
2563             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2564                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2565                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2566                                        -wd4554 \
2567                                        -wd4996 -wd4273 ;;
2568             -std=c99)             ;;
2569             -fno-math-errno)      ;;
2570             -fno-common)          ;;
2571             -fno-signed-zeros)    ;;
2572             -fPIC)                ;;
2573             -lz)                  echo zlib.lib ;;
2574             -lavifil32)           echo vfw32.lib ;;
2575             -lavicap32)           echo vfw32.lib user32.lib ;;
2576             -l*)                  echo ${flag#-l}.lib ;;
2577             *)                    echo $flag ;;
2578         esac
2579     done
2580 }
2581
2582 pgi_flags(){
2583     for flag; do
2584         case $flag in
2585             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2586             -fomit-frame-pointer) echo -Mnoframe ;;
2587             -g)                   echo -gopt ;;
2588             *)                    echo $flag ;;
2589         esac
2590     done
2591 }
2592
2593 suncc_flags(){
2594     for flag; do
2595         case $flag in
2596             -march=*|-mcpu=*)
2597                 case "${flag#*=}" in
2598                     native)                   echo -xtarget=native       ;;
2599                     v9|niagara)               echo -xarch=sparc          ;;
2600                     ultrasparc)               echo -xarch=sparcvis       ;;
2601                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2602                     i586|pentium)             echo -xchip=pentium        ;;
2603                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2604                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2605                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2606                     pentium4*)          echo -xtarget=pentium4           ;;
2607                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2608                     *-sse3)             echo -xarch=sse3                 ;;
2609                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2610                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2611                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2612                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2613                     bdver*)                   echo -xarch=avx            ;;
2614                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2615                     k8|opteron|athlon64|athlon-fx)
2616                                               echo -xarch=sse2a          ;;
2617                     athlon*)                  echo -xarch=pentium_proa   ;;
2618                 esac
2619                 ;;
2620             -std=c99)             echo -xc99              ;;
2621             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2622             -fPIC)                echo -KPIC -xcode=pic32 ;;
2623             -W*,*)                echo $flag              ;;
2624             -f*-*|-W*|-mimpure-text)                      ;;
2625             -shared)              echo -G                 ;;
2626             *)                    echo $flag              ;;
2627         esac
2628     done
2629 }
2630
2631 tms470_flags(){
2632     for flag; do
2633         case $flag in
2634             -march=*|-mcpu=*)
2635                 case "${flag#*=}" in
2636                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2637                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2638                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2639                     armv6*|arm11*)          echo -mv=6   ;;
2640                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2641                                             echo -mv=5e  ;;
2642                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2643                 esac
2644                 ;;
2645             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2646             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2647             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2648             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2649             -msoft-float)   echo --float_support=vfplib       ;;
2650             -O[0-3]|-mf=*)  echo $flag                        ;;
2651             -g)             echo -g -mn                       ;;
2652             -pds=*)         echo $flag                        ;;
2653             -D*|-I*)        echo $flag                        ;;
2654             --gcc|--abi=*)  echo $flag                        ;;
2655             -me)            echo $flag                        ;;
2656         esac
2657     done
2658 }
2659
2660 probe_cc(){
2661     pfx=$1
2662     _cc=$2
2663
2664     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2665     unset _ld_o _ldflags _ld_lib _ld_path
2666     unset _depflags _DEPCMD _DEPFLAGS
2667     _flags_filter=echo
2668
2669     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2670         _type=llvm_gcc
2671         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2672         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2673         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2674         _cflags_speed='-O3'
2675         _cflags_size='-Os'
2676     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2677         _type=gcc
2678         gcc_version=$($_cc --version | head -n1)
2679         gcc_basever=$($_cc -dumpversion)
2680         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2681         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2682         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2683         if ! $_cc -dumpversion | grep -q '^2\.'; then
2684             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2685         fi
2686         _cflags_speed='-O3'
2687         _cflags_size='-Os'
2688     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2689         _type=icc
2690         _ident=$($_cc --version | head -n1)
2691         _depflags='-MMD'
2692         _cflags_speed='-O3'
2693         _cflags_size='-Os'
2694         _cflags_noopt='-O1'
2695     elif $_cc -v 2>&1 | grep -q xlc; then
2696         _type=xlc
2697         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2698         _cflags_speed='-O5'
2699         _cflags_size='-O5 -qcompact'
2700     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2701         _type=ccc
2702         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2703         _DEPFLAGS='-M'
2704         _cflags_speed='-fast'
2705         _cflags_size='-O1'
2706         _flags_filter=ccc_flags
2707     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2708         test -d "$sysroot" || die "No valid sysroot specified."
2709         _type=armcc
2710         _ident=$($_cc --vsn | head -n1)
2711         armcc_conf="$PWD/armcc.conf"
2712         $_cc --arm_linux_configure                 \
2713              --arm_linux_config_file="$armcc_conf" \
2714              --configure_sysroot="$sysroot"        \
2715              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2716              die "Error creating armcc configuration file."
2717         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2718         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2719         as_default="${cross_prefix}gcc"
2720         _depflags='-MMD'
2721         _cflags_speed='-O3'
2722         _cflags_size='-Os'
2723     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2724         _type=tms470
2725         _ident=$($_cc -version | head -n1 | tr -s ' ')
2726         _flags='--gcc --abi=eabi -me'
2727         _cc_e='-ppl -fe=$@'
2728         _cc_o='-fe=$@'
2729         _depflags='-ppa -ppd=$(@:.o=.d)'
2730         _cflags_speed='-O3 -mf=5'
2731         _cflags_size='-O3 -mf=2'
2732         _flags_filter=tms470_flags
2733     elif $_cc -v 2>&1 | grep -q clang; then
2734         _type=clang
2735         _ident=$($_cc --version | head -n1)
2736         _depflags='-MMD'
2737         _cflags_speed='-O3'
2738         _cflags_size='-Os'
2739     elif $_cc -V 2>&1 | grep -q Sun; then
2740         _type=suncc
2741         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2742         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2743         _DEPFLAGS='-xM1 -xc99'
2744         _ldflags='-std=c99'
2745         _cflags_speed='-O5'
2746         _cflags_size='-O5 -xspace'
2747         _flags_filter=suncc_flags
2748     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2749         _type=pathscale
2750         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2751         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2752         _cflags_speed='-O2'
2753         _cflags_size='-Os'
2754         _flags_filter='filter_out -Wdisabled-optimization'
2755     elif $_cc -v 2>&1 | grep -q Open64; then
2756         _type=open64
2757         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2758         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2759         _cflags_speed='-O2'
2760         _cflags_size='-Os'
2761         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2762     elif $_cc -V 2>&1 | grep -q Portland; then
2763         _type=pgi
2764         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2765         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2766         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2767         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2768         _cflags_noopt="-O1"
2769         _flags_filter=pgi_flags
2770     elif $_cc 2>&1 | grep -q Microsoft; then
2771         _type=msvc
2772         _ident=$($cc 2>&1 | head -n1)
2773         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2774         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2775         _cflags_speed="-O2"
2776         _cflags_size="-O1"
2777         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2778         if $_cc 2>&1 | grep -q Linker; then
2779             _ld_o='-out $@'
2780         else
2781             _ld_o='-Fe$@'
2782         fi
2783         _cc_o='-Fo $@'
2784         _cc_e='-P -Fi $@'
2785         _flags_filter=msvc_flags
2786         _ld_lib='lib%.a'
2787         _ld_path='-libpath:'
2788         _flags='-nologo'
2789         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2790         if [ $pfx = hostcc ]; then
2791             append _cflags -Dsnprintf=_snprintf
2792         fi
2793         disable stripping
2794     fi
2795
2796     eval ${pfx}_type=\$_type
2797     eval ${pfx}_ident=\$_ident
2798 }
2799
2800 set_ccvars(){
2801     eval ${1}_C=\${_cc_c-\${${1}_C}}
2802     eval ${1}_E=\${_cc_e-\${${1}_E}}
2803     eval ${1}_O=\${_cc_o-\${${1}_O}}
2804
2805     if [ -n "$_depflags" ]; then
2806         eval ${1}_DEPFLAGS=\$_depflags
2807     else
2808         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2809         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2810         eval DEP${1}FLAGS=\$_flags
2811     fi
2812 }
2813
2814 probe_cc cc "$cc"
2815 cflags_filter=$_flags_filter
2816 cflags_speed=$_cflags_speed
2817 cflags_size=$_cflags_size
2818 cflags_noopt=$_cflags_noopt
2819 add_cflags $_flags $_cflags
2820 cc_ldflags=$_ldflags
2821 set_ccvars CC
2822
2823 probe_cc hostcc "$host_cc"
2824 host_cflags_filter=$_flags_filter
2825 add_host_cflags  $_flags $_cflags
2826 set_ccvars HOSTCC
2827
2828 test -n "$cc_type" && enable $cc_type ||
2829     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2830
2831 : ${as_default:=$cc}
2832 : ${dep_cc_default:=$cc}
2833 : ${ld_default:=$cc}
2834 : ${host_ld_default:=$host_cc}
2835 set_default ar as dep_cc ld host_ld
2836
2837 probe_cc as "$as"
2838 asflags_filter=$_flags_filter
2839 add_asflags $_flags $_cflags
2840 set_ccvars AS
2841
2842 probe_cc ld "$ld"
2843 ldflags_filter=$_flags_filter
2844 add_ldflags $_flags $_ldflags
2845 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2846 LD_O=${_ld_o-$LD_O}
2847 LD_LIB=${_ld_lib-$LD_LIB}
2848 LD_PATH=${_ld_path-$LD_PATH}
2849
2850 probe_cc hostld "$host_ld"
2851 host_ldflags_filter=$_flags_filter
2852 add_host_ldflags $_flags $_ldflags
2853 HOSTLD_O=${_ld_o-$HOSTLD_O}
2854
2855 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2856     probe_cc depcc "$dep_cc"
2857     CCDEP=${_DEPCMD:-$DEPCMD}
2858     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2859     DEPCCFLAGS=$_flags
2860 fi
2861
2862 if $ar 2>&1 | grep -q Microsoft; then
2863     arflags="-nologo"
2864     ar_o='-out:$@'
2865 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2866     arflags="rq"
2867     ar_o='$@'
2868 else
2869     arflags="rc"
2870     ar_o='$@'
2871 fi
2872
2873 add_cflags $extra_cflags
2874 add_cxxflags $extra_cxxflags
2875 add_asflags $extra_cflags
2876
2877 if test -n "$sysroot"; then
2878     case "$cc_type" in
2879         gcc|llvm_gcc|clang)
2880             add_cppflags --sysroot="$sysroot"
2881             add_ldflags --sysroot="$sysroot"
2882         ;;
2883         tms470)
2884             add_cppflags -I"$sysinclude"
2885             add_ldflags  --sysroot="$sysroot"
2886         ;;
2887     esac
2888 fi
2889
2890 if test "$cpu" = host; then
2891     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2892
2893     case "$cc_type" in
2894         gcc|llvm_gcc)
2895             check_native(){
2896                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2897                 sed -n "/cc1.*$1=/{
2898                             s/.*$1=\\([^ ]*\\).*/\\1/
2899                             p
2900                             q
2901                         }" $TMPE
2902             }
2903             cpu=$(check_native -march || check_native -mcpu)
2904         ;;
2905     esac
2906
2907     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2908 fi
2909
2910 # Deal with common $arch aliases
2911 case "$arch" in
2912     aarch64|arm64)
2913         arch="aarch64"
2914     ;;
2915     arm*|iPad*)
2916         arch="arm"
2917     ;;
2918     mips*|IP*)
2919         arch="mips"
2920     ;;
2921     parisc*|hppa*)
2922         arch="parisc"
2923     ;;
2924     "Power Macintosh"|ppc*|powerpc*)
2925         arch="ppc"
2926     ;;
2927     s390|s390x)
2928         arch="s390"
2929     ;;
2930     sh4|sh)
2931         arch="sh4"
2932     ;;
2933     sun4u|sparc*)
2934         arch="sparc"
2935     ;;
2936     tilegx|tile-gx)
2937         arch="tilegx"
2938     ;;
2939     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2940         arch="x86"
2941     ;;
2942 esac
2943
2944 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2945 enable $arch
2946
2947 # Add processor-specific flags
2948 if enabled aarch64; then
2949
2950     case $cpu in
2951         armv*)
2952             cpuflags="-march=$cpu"
2953         ;;
2954         *)
2955             cpuflags="-mcpu=$cpu"
2956         ;;
2957     esac
2958
2959 elif enabled alpha; then
2960
2961     cpuflags="-mcpu=$cpu"
2962
2963 elif enabled arm; then
2964
2965     check_arm_arch() {
2966         check_cpp_condition stddef.h \
2967             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2968             $cpuflags
2969     }
2970
2971     probe_arm_arch() {
2972         if   check_arm_arch 4;        then echo armv4;
2973         elif check_arm_arch 4T;       then echo armv4t;
2974         elif check_arm_arch 5;        then echo armv5;
2975         elif check_arm_arch 5E;       then echo armv5e;
2976         elif check_arm_arch 5T;       then echo armv5t;
2977         elif check_arm_arch 5TE;      then echo armv5te;
2978         elif check_arm_arch 5TEJ;     then echo armv5te;
2979         elif check_arm_arch 6;        then echo armv6;
2980         elif check_arm_arch 6J;       then echo armv6j;
2981         elif check_arm_arch 6K;       then echo armv6k;
2982         elif check_arm_arch 6Z;       then echo armv6z;
2983         elif check_arm_arch 6ZK;      then echo armv6zk;
2984         elif check_arm_arch 6T2;      then echo armv6t2;
2985         elif check_arm_arch 7;        then echo armv7;
2986         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2987         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2988         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2989         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2990         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2991         fi
2992     }
2993
2994     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2995
2996     case $cpu in
2997         armv*)
2998             cpuflags="-march=$cpu"
2999             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3000         ;;
3001         *)
3002             cpuflags="-mcpu=$cpu"
3003             case $cpu in
3004                 cortex-a*)                               subarch=armv7a  ;;
3005                 cortex-r*)                               subarch=armv7r  ;;
3006                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3007                 arm11*)                                  subarch=armv6   ;;
3008                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3009                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3010                 *)                             subarch=$(probe_arm_arch) ;;
3011             esac
3012         ;;
3013     esac
3014
3015     case "$subarch" in
3016         armv5t*)    enable fast_clz                ;;
3017         armv[6-8]*) enable fast_clz fast_unaligned ;;
3018     esac
3019
3020 elif enabled avr32; then
3021
3022     case $cpu in
3023         ap7[02]0[0-2])
3024             subarch="avr32_ap"
3025             cpuflags="-mpart=$cpu"
3026         ;;
3027         ap)
3028             subarch="avr32_ap"
3029             cpuflags="-march=$cpu"
3030         ;;
3031         uc3[ab]*)
3032             subarch="avr32_uc"
3033             cpuflags="-mcpu=$cpu"
3034         ;;
3035         uc)
3036             subarch="avr32_uc"
3037             cpuflags="-march=$cpu"
3038         ;;
3039     esac
3040
3041 elif enabled bfin; then
3042
3043     cpuflags="-mcpu=$cpu"
3044
3045 elif enabled mips; then
3046
3047     cpuflags="-march=$cpu"
3048
3049     case $cpu in
3050         24kc)
3051             disable mipsfpu
3052             disable mipsdspr1
3053             disable mipsdspr2
3054         ;;
3055         24kf*)
3056             disable mipsdspr1
3057             disable mipsdspr2
3058         ;;
3059         24kec|34kc|1004kc)
3060             disable mipsfpu
3061             disable mipsdspr2
3062         ;;
3063         24kef*|34kf*|1004kf*)
3064             disable mipsdspr2
3065         ;;
3066         74kc)
3067             disable mipsfpu
3068         ;;
3069     esac
3070
3071 elif enabled ppc; then
3072
3073     case $(tolower $cpu) in
3074         601|ppc601|powerpc601)
3075             cpuflags="-mcpu=601"
3076             disable altivec
3077         ;;
3078         603*|ppc603*|powerpc603*)
3079             cpuflags="-mcpu=603"
3080             disable altivec
3081         ;;
3082         604*|ppc604*|powerpc604*)
3083             cpuflags="-mcpu=604"
3084             disable altivec
3085         ;;
3086         g3|75*|ppc75*|powerpc75*)
3087             cpuflags="-mcpu=750"
3088             disable altivec
3089         ;;
3090         g4|745*|ppc745*|powerpc745*)
3091             cpuflags="-mcpu=7450"
3092         ;;
3093         74*|ppc74*|powerpc74*)
3094             cpuflags="-mcpu=7400"
3095         ;;
3096         g5|970|ppc970|powerpc970)
3097             cpuflags="-mcpu=970"
3098         ;;
3099         power[3-7]*)
3100             cpuflags="-mcpu=$cpu"
3101         ;;
3102         cell)
3103             cpuflags="-mcpu=cell"
3104             enable ldbrx
3105         ;;
3106         e500mc)
3107             cpuflags="-mcpu=e500mc"
3108             disable altivec
3109         ;;
3110         e500v2)
3111             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3112             disable altivec
3113         ;;
3114         e500)
3115             cpuflags="-mcpu=8540 -mhard-float"
3116             disable altivec
3117         ;;
3118     esac
3119
3120 elif enabled sparc; then
3121
3122     case $cpu in
3123         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3124             cpuflags="-mcpu=$cpu"
3125             disable vis
3126         ;;
3127         ultrasparc*|niagara[234])
3128             cpuflags="-mcpu=$cpu"
3129         ;;
3130     esac
3131
3132 elif enabled x86; then
3133
3134     case $cpu in
3135         i[345]86|pentium)
3136             cpuflags="-march=$cpu"
3137             disable mmx
3138         ;;
3139         # targets that do NOT support conditional mov (cmov)
3140         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3141             cpuflags="-march=$cpu"
3142             disable cmov
3143         ;;
3144         # targets that do support conditional mov (cmov)
3145         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3146             cpuflags="-march=$cpu"
3147             enable cmov
3148             enable fast_cmov
3149         ;;
3150         # targets that do support conditional mov but on which it's slow
3151         pentium4|pentium4m|prescott|nocona)
3152             cpuflags="-march=$cpu"
3153             enable cmov
3154             disable fast_cmov
3155         ;;
3156     esac
3157
3158 fi
3159
3160 if [ "$cpu" != generic ]; then
3161     add_cflags  $cpuflags
3162     add_asflags $cpuflags
3163 fi
3164
3165 # compiler sanity check
3166 check_exec <<EOF
3167 int main(void){ return 0; }
3168 EOF
3169 if test "$?" != 0; then
3170     echo "$cc is unable to create an executable file."
3171     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3172         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3173         echo "Only do this if you know what cross compiling means."
3174     fi
3175     die "C compiler test failed."
3176 fi
3177
3178 add_cppflags -D_ISOC99_SOURCE
3179 add_cxxflags -D__STDC_CONSTANT_MACROS
3180 check_cflags -std=c99
3181 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3182 #include <stdlib.h>
3183 EOF
3184 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3185 #include <stdlib.h>
3186 EOF
3187
3188 check_host_cflags -std=c99
3189 check_host_cflags -Wall
3190
3191 check_64bit(){
3192     arch32=$1
3193     arch64=$2
3194     expr=$3
3195     check_code cc "" "int test[2*($expr) - 1]" &&
3196         subarch=$arch64 || subarch=$arch32
3197 }
3198
3199 case "$arch" in
3200     aarch64|alpha|ia64)
3201         spic=$shared
3202     ;;
3203     mips)
3204         check_64bit mips mips64 '_MIPS_SIM > 1'
3205         spic=$shared
3206     ;;
3207     parisc)
3208         check_64bit parisc parisc64 'sizeof(void *) > 4'
3209         spic=$shared
3210     ;;
3211     ppc)
3212         check_64bit ppc ppc64 'sizeof(void *) > 4'
3213         spic=$shared
3214     ;;
3215     sparc)
3216         check_64bit sparc sparc64 'sizeof(void *) > 4'
3217         spic=$shared
3218     ;;
3219     x86)
3220         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3221         if test "$subarch" = "x86_64"; then
3222             spic=$shared
3223         fi
3224     ;;
3225     ppc)
3226         check_cc <<EOF && subarch="ppc64"
3227         int test[(int)sizeof(char*) - 7];
3228 EOF
3229     ;;
3230 esac
3231
3232 enable $subarch
3233 enabled spic && enable pic
3234
3235 # OS specific
3236 case $target_os in
3237     haiku)
3238         prefix_default="/boot/common"
3239         network_extralibs="-lnetwork"
3240         host_libs=
3241         ;;
3242     sunos)
3243         FFSERVERLDFLAGS=""
3244         SHFLAGS='-shared -Wl,-h,$$(@F)'
3245         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3246         network_extralibs="-lsocket -lnsl"
3247         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3248         # When using suncc to build, the Solaris linker will mark
3249         # an executable with each instruction set encountered by
3250         # the Solaris assembler.  As our libraries contain their own
3251         # guards for processor-specific code, instead suppress
3252         # generation of the HWCAPS ELF section on Solaris x86 only.
3253         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3254         nm_default='nm -P -g'
3255         ;;
3256     netbsd)
3257         disable symver
3258         oss_indev_extralibs="-lossaudio"
3259         oss_outdev_extralibs="-lossaudio"
3260         enabled gcc || check_ldflags -Wl,-zmuldefs
3261         ;;
3262     openbsd|bitrig)
3263         disable symver
3264         SHFLAGS='-shared'
3265         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3266         SLIB_INSTALL_LINKS=
3267         oss_indev_extralibs="-lossaudio"
3268         oss_outdev_extralibs="-lossaudio"
3269         ;;
3270     dragonfly)
3271         disable symver
3272         ;;
3273     freebsd)
3274         ;;
3275     bsd/os)
3276         add_extralibs -lpoll -lgnugetopt
3277         strip="strip -d"
3278         ;;
3279     darwin)
3280         gas="gas-preprocessor.pl $cc"
3281         enabled ppc && add_asflags -force_cpusubtype_ALL
3282         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3283         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3284         strip="${strip} -x"
3285         add_ldflags -Wl,-dynamic,-search_paths_first
3286         SLIBSUF=".dylib"
3287         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3288         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3289         FFSERVERLDFLAGS=-Wl,-bind_at_load
3290         objformat="macho"
3291         enabled x86_64 && objformat="macho64"
3292         enabled_any pic shared ||
3293             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3294         ;;
3295     mingw32*)
3296         if test $target_os = "mingw32ce"; then
3297             disable network
3298         else
3299             target_os=mingw32
3300         fi
3301         LIBTARGET=i386
3302         if enabled x86_64; then
3303             LIBTARGET="i386:x86-64"
3304         elif enabled arm; then
3305             LIBTARGET=arm-wince
3306         fi
3307         shlibdir_default="$bindir_default"
3308         SLIBPREF=""
3309         SLIBSUF=".dll"
3310         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3311         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3312         dlltool="${cross_prefix}dlltool"
3313         if check_cmd lib.exe -list; then
3314             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3315             if enabled x86_64; then
3316                 LIBTARGET=x64
3317             fi
3318         elif check_cmd $dlltool --version; then
3319             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3320         fi
3321         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3322         SLIB_INSTALL_LINKS=
3323         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3324         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3325         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3326         objformat="win32"
3327         ranlib=:
3328         enable dos_paths
3329         ;;
3330     win32|win64)
3331         if enabled shared; then
3332             # Link to the import library instead of the normal static library
3333             # for shared libs.
3334             LD_LIB='%.lib'
3335             # Cannot build shared and static libraries at the same time with
3336             # MSVC.
3337             disable static
3338         fi
3339         shlibdir_default="$bindir_default"
3340         SLIBPREF=""
3341         SLIBSUF=".dll"
3342         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3343         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3344         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3345         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3346         SLIB_INSTALL_LINKS=
3347         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3348         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3349         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3350         objformat="win32"
3351         ranlib=:
3352         enable dos_paths
3353         ;;
3354     cygwin*)
3355         target_os=cygwin
3356         shlibdir_default="$bindir_default"
3357         SLIBPREF="cyg"
3358         SLIBSUF=".dll"
3359         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3360         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3361         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3362         SLIB_INSTALL_LINKS=
3363         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3364         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3365         objformat="win32"
3366         enable dos_paths
3367         ;;
3368     *-dos|freedos|opendos)
3369         network_extralibs="-lsocket"
3370         objformat="coff"
3371         enable dos_paths
3372         add_cppflags -U__STRICT_ANSI__
3373         ;;
3374     linux)
3375         enable dv1394
3376         ;;
3377     irix*)
3378         target_os=irix
3379         ranlib="echo ignoring ranlib"
3380         ;;
3381     os/2*)
3382         strip="lxlite -CS"
3383         ln_s="cp -f"
3384         objformat="aout"
3385         add_cppflags -D_GNU_SOURCE
3386         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3387         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3388         FFSERVERLDFLAGS=""
3389         LIBSUF="_s.a"
3390         SLIBPREF=""
3391         SLIBSUF=".dll"
3392         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3393         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3394         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3395             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3396             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3397             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3398             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3399             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3400         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3401             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3402         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3403         enable dos_paths
3404         enable_weak os2threads
3405         ;;
3406     gnu/kfreebsd)
3407         add_cppflags -D_BSD_SOURCE
3408         ;;
3409     gnu)
3410         ;;
3411     qnx)
3412         add_cppflags -D_QNX_SOURCE
3413         network_extralibs="-lsocket"
3414         ;;
3415     symbian)
3416         SLIBSUF=".dll"
3417         enable dos_paths
3418         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3419         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3420         add_ldflags -Wl,--target1-abs,--no-undefined \
3421                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3422                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3423         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3424                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3425                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3426         ;;
3427     osf1)
3428         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3429         FFSERVERLDFLAGS=
3430         ;;
3431     minix)
3432         ;;
3433     plan9)
3434         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3435                      -D_REENTRANT_SOURCE        \
3436                      -D_RESEARCH_SOURCE         \
3437                      -DFD_SETSIZE=96            \
3438                      -DHAVE_SOCK_OPTS
3439         add_compat strtod.o strtod=avpriv_strtod
3440         network_extralibs='-lbsd'
3441         exeobjs=compat/plan9/main.o
3442         disable ffserver
3443         cp_f='cp'
3444         ;;
3445     none)
3446         ;;
3447     *)
3448         die "Unknown OS '$target_os'."
3449         ;;
3450 esac
3451
3452 # determine libc flavour
3453
3454 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3455 if check_cpp_condition features.h "defined __UCLIBC__"; then
3456     libc_type=uclibc
3457     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3458 elif check_cpp_condition features.h "defined __GLIBC__"; then
3459     libc_type=glibc
3460     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3461 # MinGW headers can be installed on Cygwin, so check for newlib first.
3462 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3463     libc_type=newlib
3464     add_cppflags -U__STRICT_ANSI__
3465 elif check_header _mingw.h; then
3466     libc_type=mingw
3467     check_cpp_condition _mingw.h \
3468         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3469             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3470         die "ERROR: MinGW runtime version must be >= 3.15."
3471     add_cppflags -U__STRICT_ANSI__
3472     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3473             __MINGW64_VERSION_MAJOR < 3"; then
3474         add_compat msvcrt/snprintf.o
3475         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3476     fi
3477 elif check_func_headers stdlib.h _get_doserrno; then
3478     libc_type=msvcrt
3479     add_compat strtod.o strtod=avpriv_strtod
3480     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3481                                  _snprintf=avpriv_snprintf  \
3482                                  vsnprintf=avpriv_vsnprintf
3483 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3484     libc_type=klibc
3485 fi
3486
3487 test -n "$libc_type" && enable $libc_type
3488
3489 # hacks for compiler/libc/os combinations
3490
3491 if enabled_all tms470 glibc; then
3492     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3493     add_cppflags -D__USER_LABEL_PREFIX__=
3494     add_cppflags -D__builtin_memset=memset
3495     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3496     add_cflags   -pds=48    # incompatible redefinition of macro
3497 fi
3498
3499 if enabled_all ccc glibc; then
3500     add_ldflags -Wl,-z,now  # calls to libots crash without this
3501 fi
3502
3503 esc(){
3504     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3505 }
3506
3507 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3508
3509 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3510
3511 set_default $PATHS_LIST
3512 set_default nm
3513
3514 # we need to build at least one lib type
3515 if ! enabled_any static shared; then
3516     cat <<EOF
3517 At least one library type must be built.
3518 Specify --enable-static to build the static libraries or --enable-shared to
3519 build the shared libraries as well. To only build the shared libraries specify
3520 --disable-static in addition to --enable-shared.
3521 EOF
3522     exit 1;
3523 fi
3524
3525 die_license_disabled() {
3526     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3527 }
3528
3529 die_license_disabled_gpl() {
3530     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3531 }
3532
3533 die_license_disabled gpl libcdio
3534 die_license_disabled gpl libutvideo
3535 die_license_disabled gpl libx264
3536 die_license_disabled gpl libxavs
3537 die_license_disabled gpl libxvid
3538 die_license_disabled gpl x11grab
3539
3540 die_license_disabled nonfree libaacplus
3541 die_license_disabled nonfree libfaac
3542 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3543 enabled gpl && die_license_disabled_gpl nonfree openssl
3544
3545 die_license_disabled version3 libopencore_amrnb
3546 die_license_disabled version3 libopencore_amrwb
3547 die_license_disabled version3 libvo_aacenc
3548 die_license_disabled version3 libvo_amrwbenc
3549
3550 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3551
3552 disabled optimizations || check_cflags -fomit-frame-pointer
3553
3554 enable_pic() {
3555     enable pic
3556     add_cppflags -DPIC
3557     add_cflags   -fPIC
3558     add_asflags  -fPIC
3559 }
3560
3561 enabled pic && enable_pic
3562
3563 check_cc <<EOF || die "Symbol mangling check failed."
3564 int ff_extern;
3565 EOF
3566 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3567 extern_prefix=${sym%%ff_extern*}
3568
3569 check_cc <<EOF && enable_weak inline_asm
3570 void foo(void) { __asm__ volatile ("" ::); }
3571 EOF
3572
3573 _restrict=
3574 for restrict_keyword in restrict __restrict__ __restrict; do
3575     check_cc <<EOF && _restrict=$restrict_keyword && break
3576 void foo(char * $restrict_keyword p);
3577 EOF
3578 done
3579
3580 check_cc <<EOF && enable attribute_packed
3581 struct { int x; } __attribute__((packed)) x;
3582 EOF
3583
3584 check_cc <<EOF && enable attribute_may_alias
3585 union { int x; } __attribute__((may_alias)) x;
3586 EOF
3587
3588 check_cc <<EOF || die "endian test failed"
3589 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3590 EOF
3591 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3592
3593 if enabled alpha; then
3594
3595     check_cflags -mieee
3596
3597 elif enabled arm; then
3598
3599     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3600 float func(float a, float b){ return a+b; }
3601 EOF
3602
3603     enabled thumb && check_cflags -mthumb || check_cflags -marm
3604     nogas=die
3605
3606     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3607         enable vfp_args
3608     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3609         case "${cross_prefix:-$cc}" in
3610             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3611             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3612 __asm__ (".eabi_attribute 28, 1");
3613 int main(void) { return 0; }
3614 EOF
3615         esac
3616         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3617     fi
3618
3619     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3620     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3621     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3622     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3623     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3624     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3625
3626     [ $target_os = linux ] ||
3627         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3628             $ARCH_EXT_LIST_ARM
3629
3630     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3631     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3632
3633     enabled_all armv6t2 shared !pic && enable_pic
3634
3635 elif enabled mips; then
3636
3637     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3638     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3639      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3640     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3641      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3642     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3643      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3644     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3645      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3646
3647 elif enabled parisc; then
3648
3649     if enabled gcc; then
3650         case $($cc -dumpversion) in
3651             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3652         esac
3653     fi
3654
3655 elif enabled ppc; then
3656
3657     enable local_aligned_8 local_aligned_16
3658
3659     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3660     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3661     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3662     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3663
3664     # AltiVec flags: The FSF version of GCC differs from the Apple version
3665     if enabled altivec; then
3666         nogas=warn
3667         check_cflags -maltivec -mabi=altivec &&
3668         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3669         check_cflags -faltivec
3670
3671         # check if our compiler supports Motorola AltiVec C API
3672         check_cc <<EOF || disable altivec
3673 $inc_altivec_h
3674 int main(void) {
3675     vector signed int v1 = (vector signed int) { 0 };
3676     vector signed int v2 = (vector signed int) { 1 };
3677     v1 = vec_add(v1, v2);
3678     return 0;
3679 }
3680 EOF
3681
3682         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3683     fi
3684
3685 elif enabled sparc; then
3686
3687     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3688
3689 elif enabled x86; then
3690
3691     check_builtin rdtsc    intrin.h   "__rdtsc()"
3692     check_builtin mm_empty mmintrin.h "_mm_empty()"
3693
3694     enable local_aligned_8 local_aligned_16
3695
3696     # check whether EBP is available on x86
3697     # As 'i' is stored on the stack, this program will crash
3698     # if the base pointer is used to access it because the
3699     # base pointer is cleared in the inline assembly code.
3700     check_exec_crash <<EOF && enable ebp_available
3701 volatile int i=0;
3702 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3703 return i;
3704 EOF
3705
3706     # check whether EBX is available on x86
3707     check_inline_asm ebx_available '""::"b"(0)' &&
3708         check_inline_asm ebx_available '"":::"%ebx"'
3709
3710     # check whether xmm clobbers are supported
3711     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3712
3713     # check whether binutils is new enough to compile SSSE3/MMXEXT
3714     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3715     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3716
3717     if ! disabled_any asm mmx yasm; then
3718         if check_cmd $yasmexe --version; then
3719             enabled x86_64 && yasm_extra="-m amd64"
3720             yasm_debug="-g dwarf2"
3721         elif check_cmd nasm -v; then
3722             yasmexe=nasm
3723             yasm_debug="-g -F dwarf"
3724             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3725         fi
3726
3727         YASMFLAGS="-f $objformat $yasm_extra"
3728         enabled pic               && append YASMFLAGS "-DPIC"
3729         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3730         case "$objformat" in
3731             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3732         esac
3733
3734         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3735             die "yasm not found, use --disable-yasm for a crippled build"
3736         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3737         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3738         check_yasm "CPU amdnop" && enable cpunop
3739     fi
3740
3741     case "$cpu" in
3742         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3743             disable fast_clz
3744         ;;
3745     esac
3746
3747 fi
3748
3749 if enabled asm; then
3750     as=${gas:=$as}
3751     check_as <<EOF && enable gnu_as || \
3752         $nogas "GNU assembler not found, install gas-preprocessor"
3753 .macro m n
3754 \n: .int 0
3755 .endm
3756 m x
3757 EOF
3758 fi
3759
3760 check_ldflags -Wl,--as-needed
3761
3762 if check_func dlopen; then
3763     ldl=
3764 elif check_func dlopen -ldl; then
3765     ldl=-ldl
3766 fi
3767
3768 if ! disabled network; then
3769     check_type "sys/types.h sys/socket.h" socklen_t
3770     check_type netdb.h "struct addrinfo"
3771     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3772     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3773     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3774     check_type netinet/in.h "struct sockaddr_in6"
3775     check_type poll.h "struct pollfd"
3776     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3777     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3778     check_type netinet/sctp.h "struct sctp_event_subscribe"
3779     check_func getaddrinfo $network_extralibs
3780     check_func getservbyport $network_extralibs
3781     # Prefer arpa/inet.h over winsock2
3782     if check_header arpa/inet.h ; then
3783         check_func closesocket
3784     elif check_header winsock2.h ; then
3785         check_func_headers winsock2.h closesocket -lws2 &&
3786             network_extralibs="-lws2" ||
3787         { check_func_headers winsock2.h closesocket -lws2_32 &&
3788             network_extralibs="-lws2_32"; }
3789         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3790         check_type ws2tcpip.h socklen_t
3791         check_type ws2tcpip.h "struct addrinfo"
3792         check_type ws2tcpip.h "struct group_source_req"
3793         check_type ws2tcpip.h "struct ip_mreq_source"
3794         check_type ws2tcpip.h "struct ipv6_mreq"
3795         check_type winsock2.h "struct pollfd"
3796         check_type ws2tcpip.h "struct sockaddr_in6"
3797         check_type ws2tcpip.h "struct sockaddr_storage"
3798         check_struct winsock2.h "struct sockaddr" sa_len
3799     else
3800         disable network
3801     fi
3802 fi
3803
3804 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3805 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3806
3807 check_func  access
3808 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3809 check_func  fcntl
3810 check_func  fork
3811 check_func  gethrtime
3812 check_func  getopt
3813 check_func  getrusage
3814 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3815 check_func  gettimeofday
3816 check_func  inet_aton $network_extralibs
3817 check_func  isatty
3818 check_func  localtime_r
3819 check_func  ${malloc_prefix}memalign            && enable memalign
3820 check_func  mkstemp
3821 check_func  mmap
3822 check_func  mprotect
3823 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3824 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3825 check_func  setrlimit
3826 check_func  strerror_r
3827 check_func  sched_getaffinity
3828 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3829 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3830 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3831 check_func  sysconf
3832 check_func  sysctl
3833 check_func  usleep
3834 check_func_headers conio.h kbhit
3835 check_func_headers windows.h PeekNamedPipe
3836 check_func_headers io.h setmode
3837 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3838 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3839 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3840 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3841 check_func_headers windows.h GetProcessAffinityMask
3842 check_func_headers windows.h GetProcessTimes
3843 check_func_headers windows.h GetSystemTimeAsFileTime
3844 check_func_headers windows.h MapViewOfFile
3845 check_func_headers windows.h SetConsoleTextAttribute
3846 check_func_headers windows.h Sleep
3847 check_func_headers windows.h VirtualAlloc
3848 check_func_headers glob.h glob
3849
3850 check_header direct.h
3851 check_header dlfcn.h
3852 check_header dxva.h
3853 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3854 check_header io.h
3855 check_header libcrystalhd/libcrystalhd_if.h
3856 check_header malloc.h
3857 check_header poll.h
3858 check_header sys/mman.h
3859 check_header sys/param.h
3860 check_header sys/resource.h
3861 check_header sys/select.h
3862 check_header sys/time.h
3863 check_header termios.h
3864 check_header unistd.h
3865 check_header vdpau/vdpau.h
3866 check_header vdpau/vdpau_x11.h
3867 check_header VideoDecodeAcceleration/VDADecoder.h
3868 check_header windows.h
3869 check_header X11/extensions/XvMClib.h
3870 check_header asm/types.h
3871
3872 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3873 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3874
3875 if ! disabled w32threads && ! enabled pthreads; then
3876     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3877 fi
3878
3879 # check for some common methods of building with pthread support
3880 # do this before the optional library checks as some of them require pthreads
3881 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3882     enable pthreads
3883     if check_func pthread_create; then
3884         :
3885     elif check_func pthread_create -pthread; then
3886         add_cflags -pthread
3887         add_extralibs -pthread
3888     elif check_func pthread_create -pthreads; then
3889         add_cflags -pthreads
3890         add_extralibs -pthreads
3891     elif check_func pthread_create -lpthreadGC2; then
3892         add_extralibs -lpthreadGC2
3893     elif ! check_lib pthread.h pthread_create -lpthread; then
3894         disable pthreads
3895     fi
3896 fi
3897
3898 for thread in $THREADS_LIST; do
3899     if enabled $thread; then
3900         test -n "$thread_type" &&
3901             die "ERROR: Only one thread type must be selected." ||
3902             thread_type="$thread"
3903     fi
3904 done
3905
3906 if enabled pthreads; then
3907   check_func pthread_cancel
3908 fi
3909
3910 check_lib math.h sin -lm && LIBM="-lm"
3911 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3912 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3913
3914 atan2f_args=2
3915 ldexpf_args=2
3916 powf_args=2
3917
3918 for func in $MATH_FUNCS; do
3919     eval check_mathfunc $func \${${func}_args:-1}
3920 done
3921
3922 # these are off by default, so fail if requested and not available
3923 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
3924                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
3925                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
3926 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3927 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3928 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3929 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3930 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3931 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3932 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3933 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3934                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3935                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3936 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3937 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3938 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3939 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"
3940 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3941 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3942 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3943                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3944                         done || die "ERROR: libgsm not found"; }
3945 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3946 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3947 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3948 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3949 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3950 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3951 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3952 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3953                          check_lib openjpeg.h opj_version -lopenjpeg ||
3954                          die "ERROR: libopenjpeg not found"; }
3955 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3956 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3957 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3958 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3959 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3960 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3961 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3962     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3963     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3964 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3965 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3966                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3967                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3968 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3969 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3970 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3971 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3972 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3973 enabled libvpx     && {
3974     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3975                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3976     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 ||
3977                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3978     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3979     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3980 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3981                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3982                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3983 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3984 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3985 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3986                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3987                         die "ERROR: openal not found"; } &&
3988                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3989                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3990 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3991                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3992                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3993                         die "ERROR: openssl not found"; }
3994
3995 if enabled gnutls; then
3996     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3997     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3998 fi
3999
4000 # libdc1394 check
4001 if enabled libdc1394; then
4002     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4003         enable libdc1394_2; } ||
4004     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4005         enable libdc1394_1; } ||
4006     die "ERROR: No version of libdc1394 found "
4007 fi
4008
4009 SDL_CONFIG="${cross_prefix}sdl-config"
4010 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4011     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4012     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4013     enable sdl
4014 else
4015   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4016     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4017     sdl_libs=$("${SDL_CONFIG}" --libs)
4018     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4019     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4020     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4021     enable sdl
4022   fi
4023 fi
4024 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4025
4026 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4027 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4028 perl --version > /dev/null 2>&1 && enable perl || disable perl
4029 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4030 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4031
4032 check_header linux/fb.h
4033 check_header linux/videodev.h
4034 check_header linux/videodev2.h
4035 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4036
4037 check_header sys/videoio.h
4038
4039 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4040 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4041 # w32api 3.12 had it defined wrong
4042 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4043
4044 check_type "dshow.h" IBaseFilter
4045
4046 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4047 { check_header dev/bktr/ioctl_meteor.h &&
4048   check_header dev/bktr/ioctl_bt848.h; } ||
4049 { check_header machine/ioctl_meteor.h &&
4050   check_header machine/ioctl_bt848.h; } ||
4051 { check_header dev/video/meteor/ioctl_meteor.h &&
4052   check_header dev/video/bktr/ioctl_bt848.h; } ||
4053 check_header dev/ic/bt8xx.h
4054
4055 check_header sndio.h
4056 if check_struct sys/soundcard.h audio_buf_info bytes; then
4057     enable_safe sys/soundcard.h
4058 else
4059     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4060     #include <sys/soundcard.h>
4061     audio_buf_info abc;
4062 EOF
4063 fi
4064 check_header soundcard.h
4065
4066 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4067
4068 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4069     check_func jack_port_get_latency_range -ljack
4070
4071 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4072
4073 if enabled libcdio; then
4074     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4075 fi
4076
4077 enabled x11grab                                           &&
4078 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4079 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4080 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4081
4082 if ! disabled vaapi; then
4083     check_lib va/va.h vaInitialize -lva && {
4084         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4085         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4086     } || disable vaapi
4087 fi
4088
4089 enabled vdpau &&
4090     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4091     disable vdpau
4092
4093 # Funny iconv installations are not unusual, so check it after all flags have been set
4094 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4095
4096 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4097 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4098 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"
4099
4100 # add some useful compiler flags if supported
4101 check_cflags -Wdeclaration-after-statement
4102 check_cflags -Wall
4103 check_cflags -Wno-parentheses
4104 check_cflags -Wno-switch
4105 check_cflags -Wno-format-zero-length
4106 check_cflags -Wdisabled-optimization
4107 check_cflags -Wpointer-arith
4108 check_cflags -Wredundant-decls
4109 check_cflags -Wno-pointer-sign
4110 check_cflags -Wwrite-strings
4111 check_cflags -Wtype-limits
4112 check_cflags -Wundef
4113 check_cflags -Wmissing-prototypes
4114 check_cflags -Wno-pointer-to-int-cast
4115 check_cflags -Wstrict-prototypes
4116 enabled extra_warnings && check_cflags -Winline
4117
4118 # add some linker flags
4119 check_ldflags -Wl,--warn-common
4120 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4121 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4122
4123 enabled xmm_clobber_test &&
4124     check_ldflags -Wl,--wrap,avcodec_open2              \
4125                   -Wl,--wrap,avcodec_decode_audio4      \
4126                   -Wl,--wrap,avcodec_decode_video2      \
4127                   -Wl,--wrap,avcodec_decode_subtitle2   \
4128                   -Wl,--wrap,avcodec_encode_audio2      \
4129                   -Wl,--wrap,avcodec_encode_video       \
4130                   -Wl,--wrap,avcodec_encode_subtitle    \
4131                   -Wl,--wrap,sws_scale ||
4132     disable xmm_clobber_test
4133
4134 echo "X{};" > $TMPV
4135 if test_ldflags -Wl,--version-script,$TMPV; then
4136     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4137     check_cc <<EOF && enable symver_asm_label
4138 void ff_foo(void) __asm__ ("av_foo@VERSION");
4139 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4140 EOF
4141     check_cc <<EOF && enable symver_gnu_asm
4142 __asm__(".symver ff_foo,av_foo@VERSION");
4143 void ff_foo(void) {}
4144 EOF
4145 fi
4146
4147 if [ -z "$optflags" ]; then
4148     if enabled small; then
4149         optflags=$cflags_size
4150     elif enabled optimizations; then
4151         optflags=$cflags_speed
4152     else
4153         optflags=$cflags_noopt
4154     fi
4155 fi
4156
4157 check_optflags(){
4158     check_cflags "$@"
4159     enabled lto && check_ldflags "$@"
4160 }
4161
4162
4163 if enabled lto; then
4164     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4165     check_cflags  -flto
4166     check_ldflags -flto $cpuflags
4167 fi
4168
4169 check_optflags $optflags
4170 check_optflags -fno-math-errno
4171 check_optflags -fno-signed-zeros
4172
4173 enabled ftrapv && check_cflags -ftrapv
4174
4175 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4176 int x;
4177 EOF
4178
4179
4180 if enabled icc; then
4181     # Just warnings, no remarks
4182     check_cflags -w1
4183     # -wd: Disable following warnings
4184     # 144, 167, 556: -Wno-pointer-sign
4185     # 188: enumerated type mixed with another type
4186     # 1292: attribute "foo" ignored
4187     # 1419: external declaration in primary source file
4188     # 10006: ignoring unknown option -fno-signed-zeros
4189     # 10148: ignoring unknown option -Wno-parentheses
4190     # 10156: ignoring option '-W'; no argument required
4191     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4192     # 11030: Warning unknown option --as-needed
4193     # 10156: ignoring option '-export'; no argument required
4194     check_ldflags -wd10156,11030
4195     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4196     enable ebp_available
4197     if enabled x86_32; then
4198         icc_version=$($cc -dumpversion)
4199         test ${icc_version%%.*} -ge 11 &&
4200             check_cflags -falign-stack=maintain-16-byte ||
4201             disable aligned_stack
4202     fi
4203 elif enabled ccc; then
4204     # disable some annoying warnings
4205     add_cflags -msg_disable bitnotint
4206     add_cflags -msg_disable mixfuncvoid
4207     add_cflags -msg_disable nonstandcast
4208     add_cflags -msg_disable unsupieee
4209 elif enabled gcc; then
4210     check_optflags -fno-tree-vectorize
4211     check_cflags -Werror=implicit-function-declaration
4212     check_cflags -Werror=missing-prototypes
4213     check_cflags -Werror=return-type
4214     check_cflags -Werror=vla
4215 elif enabled llvm_gcc; then
4216     check_cflags -mllvm -stack-alignment=16
4217 elif enabled clang; then
4218     check_cflags -mllvm -stack-alignment=16
4219     check_cflags -Qunused-arguments
4220     check_cflags -Werror=implicit-function-declaration
4221     check_cflags -Werror=missing-prototypes
4222     check_cflags -Werror=return-type
4223 elif enabled armcc; then
4224     # 2523: use of inline assembler is deprecated
4225     add_cflags -W${armcc_opt},--diag_suppress=2523
4226     add_cflags -W${armcc_opt},--diag_suppress=1207
4227     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4228     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4229     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4230     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4231 elif enabled tms470; then
4232     add_cflags -pds=824 -pds=837
4233 elif enabled pathscale; then
4234     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4235 elif enabled msvc; then
4236     enabled x86_32 && disable aligned_stack
4237 fi
4238
4239 case $target_os in
4240     osf1)
4241         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4242     ;;
4243     plan9)
4244         add_cppflags -Dmain=plan9_main
4245     ;;
4246 esac
4247
4248 enabled_any $THREADS_LIST      && enable threads
4249 enable frame_thread_encoder
4250
4251 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4252
4253 check_deps $CONFIG_LIST       \
4254            $CONFIG_EXTRA      \
4255            $HAVE_LIST         \
4256            $ALL_COMPONENTS    \
4257
4258
4259 if test $target_os = "haiku"; then
4260     disable memalign
4261     disable posix_memalign
4262 fi
4263
4264 ! enabled_any memalign posix_memalign aligned_malloc &&
4265     enabled_any $need_memalign && enable memalign_hack
4266
4267 # add_dep lib dep
4268 # -> enable ${lib}_deps_${dep}
4269 # -> add $dep to ${lib}_deps only once
4270 add_dep() {
4271     lib=$1
4272     dep=$2
4273     enabled "${lib}_deps_${dep}" && return 0
4274     enable  "${lib}_deps_${dep}"
4275     prepend "${lib}_deps" $dep
4276 }
4277
4278 # merge deps lib components
4279 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4280 merge_deps() {
4281     lib=$1
4282     shift
4283     for comp in $*; do
4284         enabled $comp || continue
4285         eval "dep=\"\$${comp}_deps\""
4286         for d in $dep; do
4287             add_dep $lib $d
4288         done
4289     done
4290 }
4291
4292 merge_deps libavfilter $FILTER_LIST
4293
4294 echo "install prefix            $prefix"
4295 echo "source path               $source_path"
4296 echo "C compiler                $cc"
4297 echo "ARCH                      $arch ($cpu)"
4298 if test "$build_suffix" != ""; then
4299     echo "build suffix              $build_suffix"
4300 fi
4301 if test "$progs_suffix" != ""; then
4302     echo "progs suffix              $progs_suffix"
4303 fi
4304 if test "$extra_version" != ""; then
4305     echo "version string suffix     $extra_version"
4306 fi
4307 echo "big-endian                ${bigendian-no}"
4308 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4309 if enabled x86; then
4310     echo "${yasmexe}                      ${yasm-no}"
4311     echo "MMX enabled               ${mmx-no}"
4312     echo "MMXEXT enabled            ${mmxext-no}"
4313     echo "3DNow! enabled            ${amd3dnow-no}"
4314     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4315     echo "SSE enabled               ${sse-no}"
4316     echo "SSSE3 enabled             ${ssse3-no}"
4317     echo "AVX enabled               ${avx-no}"
4318     echo "FMA4 enabled              ${fma4-no}"
4319     echo "CMOV enabled              ${cmov-no}"
4320     echo "CMOV is fast              ${fast_cmov-no}"
4321     echo "EBX available             ${ebx_available-no}"
4322     echo "EBP available             ${ebp_available-no}"
4323 fi
4324 if enabled arm; then
4325     echo "ARMv5TE enabled           ${armv5te-no}"
4326     echo "ARMv6 enabled             ${armv6-no}"
4327     echo "ARMv6T2 enabled           ${armv6t2-no}"
4328     echo "VFP enabled               ${vfp-no}"
4329     echo "NEON enabled              ${neon-no}"
4330     echo "THUMB enabled             ${thumb-no}"
4331 fi
4332 if enabled mips; then
4333     echo "MIPS FPU enabled          ${mipsfpu-no}"
4334     echo "MIPS32R2 enabled          ${mips32r2-no}"
4335     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4336     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4337 fi
4338 if enabled ppc; then
4339     echo "AltiVec enabled           ${altivec-no}"
4340     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4341     echo "dcbzl available           ${dcbzl-no}"
4342 fi
4343 if enabled sparc; then
4344     echo "VIS enabled               ${vis-no}"
4345 fi
4346 echo "debug symbols             ${debug-no}"
4347 echo "strip symbols             ${stripping-no}"
4348 echo "optimize for size         ${small-no}"
4349 echo "optimizations             ${optimizations-no}"
4350 echo "static                    ${static-no}"
4351 echo "shared                    ${shared-no}"
4352 echo "postprocessing support    ${postproc-no}"
4353 echo "new filter support        ${avfilter-no}"
4354 echo "network support           ${network-no}"
4355 echo "threading support         ${thread_type-no}"
4356 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4357 echo "SDL support               ${sdl-no}"
4358 echo "texi2html enabled         ${texi2html-no}"
4359 echo "perl enabled              ${perl-no}"
4360 echo "pod2man enabled           ${pod2man-no}"
4361 echo "makeinfo enabled          ${makeinfo-no}"
4362 test -n "$random_seed" &&
4363     echo "random seed               ${random_seed}"
4364 echo
4365
4366 echo "External libraries:"
4367 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4368 echo
4369
4370 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4371     echo "Enabled ${type}s:"
4372     eval list=\$$(toupper $type)_LIST
4373     print_enabled '_*' $list | print_3_columns
4374     echo
4375 done
4376
4377 license="LGPL version 2.1 or later"
4378 if enabled nonfree; then
4379     license="nonfree and unredistributable"
4380 elif enabled gplv3; then
4381     license="GPL version 3 or later"
4382 elif enabled lgplv3; then
4383     license="LGPL version 3 or later"
4384 elif enabled gpl; then
4385     license="GPL version 2 or later"
4386 fi
4387
4388 echo "License: $license"
4389
4390 echo "Creating config.mak and config.h..."
4391
4392 test -e Makefile || $ln_s "$source_path/Makefile" .
4393
4394 enabled stripping || strip="echo skipping strip"
4395
4396 config_files="$TMPH config.mak"
4397
4398 cat > config.mak <<EOF
4399 # Automatically generated by configure - do not modify!
4400 ifndef FFMPEG_CONFIG_MAK
4401 FFMPEG_CONFIG_MAK=1
4402 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4403 prefix=$prefix
4404 LIBDIR=\$(DESTDIR)$libdir
4405 SHLIBDIR=\$(DESTDIR)$shlibdir
4406 INCDIR=\$(DESTDIR)$incdir
4407 BINDIR=\$(DESTDIR)$bindir
4408 DATADIR=\$(DESTDIR)$datadir
4409 MANDIR=\$(DESTDIR)$mandir
4410 SRC_PATH=$source_path
4411 ifndef MAIN_MAKEFILE
4412 SRC_PATH:=\$(SRC_PATH:.%=..%)
4413 endif
4414 CC_IDENT=$cc_ident
4415 ARCH=$arch
4416 CC=$cc
4417 CXX=$cxx
4418 AS=$as
4419 LD=$ld
4420 DEPCC=$dep_cc
4421 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4422 DEPAS=$as
4423 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4424 YASM=$yasmexe
4425 DEPYASM=$yasmexe
4426 AR=$ar
4427 ARFLAGS=$arflags
4428 AR_O=$ar_o
4429 RANLIB=$ranlib
4430 CP=cp -p
4431 LN_S=$ln_s
4432 STRIP=$strip
4433 CPPFLAGS=$CPPFLAGS
4434 CFLAGS=$CFLAGS
4435 CXXFLAGS=$CXXFLAGS
4436 ASFLAGS=$ASFLAGS
4437 AS_C=$AS_C
4438 AS_O=$AS_O
4439 CC_C=$CC_C
4440 CC_E=$CC_E
4441 CC_O=$CC_O
4442 CXX_C=$CXX_C
4443 CXX_O=$CXX_O
4444 LD_O=$LD_O
4445 LD_LIB=$LD_LIB
4446 LD_PATH=$LD_PATH
4447 DLLTOOL=$dlltool
4448 LDFLAGS=$LDFLAGS
4449 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4450 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4451 YASMFLAGS=$YASMFLAGS
4452 BUILDSUF=$build_suffix
4453 PROGSSUF=$progs_suffix
4454 FULLNAME=$FULLNAME
4455 LIBPREF=$LIBPREF
4456 LIBSUF=$LIBSUF
4457 LIBNAME=$LIBNAME
4458 SLIBPREF=$SLIBPREF
4459 SLIBSUF=$SLIBSUF
4460 EXESUF=$EXESUF
4461 EXTRA_VERSION=$extra_version
4462 CCDEP=$CCDEP
4463 CXXDEP=$CXXDEP
4464 CCDEP_FLAGS=$CCDEP_FLAGS
4465 ASDEP=$ASDEP
4466 ASDEP_FLAGS=$ASDEP_FLAGS
4467 CC_DEPFLAGS=$CC_DEPFLAGS
4468 AS_DEPFLAGS=$AS_DEPFLAGS
4469 HOSTCC=$host_cc
4470 HOSTLD=$host_ld
4471 HOSTCFLAGS=$host_cflags
4472 HOSTCPPFLAGS=$host_cppflags
4473 HOSTEXESUF=$HOSTEXESUF
4474 HOSTLDFLAGS=$host_ldflags
4475 HOSTLIBS=$host_libs
4476 DEPHOSTCC=$host_cc
4477 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4478 HOSTCCDEP=$HOSTCCDEP
4479 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4480 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4481 HOSTCC_C=$HOSTCC_C
4482 HOSTCC_O=$HOSTCC_O
4483 HOSTLD_O=$HOSTLD_O
4484 TARGET_EXEC=$target_exec
4485 TARGET_PATH=$target_path
4486 LIBS-ffplay=$sdl_libs
4487 CFLAGS-ffplay=$sdl_cflags
4488 ZLIB=$($ldflags_filter -lz)
4489 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4490 EXTRALIBS=$extralibs
4491 COMPAT_OBJS=$compat_objs
4492 EXEOBJS=$exeobjs
4493 INSTALL=$install
4494 LIBTARGET=${LIBTARGET}
4495 SLIBNAME=${SLIBNAME}
4496 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4497 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4498 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4499 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4500 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4501 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4502 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4503 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4504 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4505 NOREDZONE_FLAGS=$noredzone_flags
4506 EOF
4507
4508 get_version(){
4509     lcname=lib${1}
4510     name=$(toupper $lcname)
4511     file=$source_path/$lcname/version.h
4512     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4513     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4514     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4515     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4516     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4517 }
4518
4519 map 'get_version $v' $LIBRARY_LIST
4520
4521 cat > $TMPH <<EOF
4522 /* Automatically generated by configure - do not modify! */
4523 #ifndef FFMPEG_CONFIG_H
4524 #define FFMPEG_CONFIG_H
4525 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4526 #define FFMPEG_LICENSE "$(c_escape $license)"
4527 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4528 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4529 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4530 #define av_restrict $_restrict
4531 #define EXTERN_PREFIX "${extern_prefix}"
4532 #define EXTERN_ASM ${extern_prefix}
4533 #define SLIBSUF "$SLIBSUF"
4534 #define HAVE_MMX2 HAVE_MMXEXT
4535 EOF
4536
4537 test -n "$assert_level" &&
4538     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4539
4540 test -n "$malloc_prefix" &&
4541     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4542
4543 if enabled yasm; then
4544     append config_files $TMPASM
4545     printf '' >$TMPASM
4546 fi
4547
4548 print_config ARCH_   "$config_files" $ARCH_LIST
4549 print_config HAVE_   "$config_files" $HAVE_LIST
4550 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4551                                      $CONFIG_EXTRA      \
4552                                      $ALL_COMPONENTS    \
4553
4554 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4555 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4556
4557 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4558 cp_if_changed $TMPH config.h
4559 touch .config
4560
4561 enabled yasm && cp_if_changed $TMPASM config.asm
4562
4563 cat > $TMPH <<EOF
4564 /* Generated by ffconf */
4565 #ifndef AVUTIL_AVCONFIG_H
4566 #define AVUTIL_AVCONFIG_H
4567 EOF
4568
4569 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4570
4571 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4572
4573 cp_if_changed $TMPH libavutil/avconfig.h
4574
4575 if test -n "$WARNINGS"; then
4576     printf "\n$WARNINGS"
4577     enabled fatal_warnings && exit 1
4578 fi
4579
4580 # build pkg-config files
4581
4582 pkgconfig_generate(){
4583     name=$1
4584     shortname=${name#lib}${build_suffix}
4585     comment=$2
4586     version=$3
4587     libs=$4
4588     requires=$5
4589     enabled ${name#lib} || return 0
4590     mkdir -p $name
4591     cat <<EOF > $name/$name${build_suffix}.pc
4592 prefix=$prefix
4593 exec_prefix=\${prefix}
4594 libdir=$libdir
4595 includedir=$incdir
4596
4597 Name: $name
4598 Description: $comment
4599 Version: $version
4600 Requires: $(enabled shared || echo $requires)
4601 Requires.private: $(enabled shared && echo $requires)
4602 Conflicts:
4603 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4604 Libs.private: $(enabled shared && echo $libs)
4605 Cflags: -I\${includedir}
4606 EOF
4607
4608 mkdir -p doc/examples/pc-uninstalled
4609 includedir=${source_path}
4610 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4611     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4612 prefix=
4613 exec_prefix=
4614 libdir=\${pcfiledir}/../../../$name
4615 includedir=${includedir}
4616
4617 Name: $name
4618 Description: $comment
4619 Version: $version
4620 Requires: $requires
4621 Conflicts:
4622 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4623 Cflags: -I\${includedir}
4624 EOF
4625 }
4626
4627 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4628 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4629 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4630 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4631 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4632 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4633 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4634 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4635
4636 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4637 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4638
4639 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4640 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4641 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4642 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4643 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4644 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4645 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4646 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4647 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4648
4649 fix_ffmpeg_remote(){
4650     git_remote_from=$1
4651     git_remote_to=$2
4652     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4653     if [ "$fixme_remote" != "" ]; then
4654         echolog "
4655 Outdated domain in git config, the official domain for ffmpeg git is since
4656 November 2011, source.ffmpeg.org, both the old and the new point to the same
4657 repository and server. To update it enter the following commands:
4658 "
4659         for remote in $fixme_remote; do
4660             echolog "git remote set-url $remote $git_remote_to"
4661         done
4662     fi
4663 }
4664
4665 if test -f "$source_path/.git/config"; then
4666     remote_from=git.videolan.org
4667     remote_to=source.ffmpeg.org
4668     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4669     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4670 fi