code.vuplus.com Git - vuplus_xbmc/blob - lib/ffmpeg/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   --custom-libname-with-major=NAME  custom library name with major [$SLIBNAME_WITH_MAJOR]
 277   --enable-pic             build position-independent code
 278   --enable-sram            allow use of on-chip SRAM
 279   --enable-thumb           compile for Thumb instruction set
 280   --disable-symver         disable symbol versioning
 281   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 282   --disable-safe-bitstream-reader
 283                            disable buffer boundary checking in bitreaders
 284                            (faster, but may crash)
 285   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 286   --enable-lto             use link-time optimization
 287
 288 Optimization options (experts only):
 289   --disable-asm            disable all assembler optimizations
 290   --disable-altivec        disable AltiVec optimizations
 291   --disable-amd3dnow       disable 3DNow! optimizations
 292   --disable-amd3dnowext    disable 3DNow! extended optimizations
 293   --disable-mmx            disable MMX optimizations
 294   --disable-mmxext         disable MMXEXT optimizations
 295   --disable-sse            disable SSE optimizations
 296   --disable-sse2           disable SSE2 optimizations
 297   --disable-sse3           disable SSE3 optimizations
 298   --disable-ssse3          disable SSSE3 optimizations
 299   --disable-sse4           disable SSE4 optimizations
 300   --disable-sse42          disable SSE4.2 optimizations
 301   --disable-avx            disable AVX optimizations
 302   --disable-fma4           disable FMA4 optimizations
 303   --disable-armv5te        disable armv5te optimizations
 304   --disable-armv6          disable armv6 optimizations
 305   --disable-armv6t2        disable armv6t2 optimizations
 306   --disable-vfp            disable VFP optimizations
 307   --disable-neon           disable NEON optimizations
 308   --disable-vis            disable VIS optimizations
 309   --disable-inline-asm     disable use of inline assembler
 310   --disable-yasm           disable use of yasm assembler
 311   --disable-mips32r2       disable MIPS32R2 optimizations
 312   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 313   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 314   --disable-mipsfpu        disable floating point MIPS optimizations
 315   --disable-fast-unaligned consider unaligned accesses slow
 316
 317 Developer options (useful when working on FFmpeg itself):
 318   --enable-coverage        build with test coverage instrumentation
 319   --disable-debug          disable debugging symbols
 320   --enable-debug=LEVEL     set the debug level [$debuglevel]
 321   --disable-optimizations  disable compiler optimizations
 322   --enable-extra-warnings  enable more compiler warnings
 323   --disable-stripping      disable stripping of executables and shared libraries
 324   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 325                            2 causes a slowdown at runtime.
 326   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 327   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 328                            leaks and errors, using the specified valgrind binary.
 329                            Cannot be combined with --target-exec
 330   --enable-ftrapv          Trap arithmetic overflows
 331   --samples=PATH           location of test samples for FATE, if not set use
 332                            \$FATE_SAMPLES at make invocation time.
 333   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 334                            should be used only for debugging purposes)
 335   --enable-random          randomly enable/disable components
 336   --disable-random
 337   --enable-random=LIST     randomly enable/disable specific components or
 338   --disable-random=LIST    component groups. LIST is a comma-separated list
 339                            of NAME[:PROB] entries where NAME is a component
 340                            (group) and PROB the probability associated with
 341                            NAME (default 0.5).
 342   --random-seed=VALUE      seed value for --enable/disable-random
 343
 344 NOTE: Object files are built at the place where configure is launched.
 345 EOF
 346   exit 0
 347 }
 348
 349 quotes='""'
 350
 351 log(){
 352     echo "$@" >> $logfile
 353 }
 354
 355 log_file(){
 356     log BEGIN $1
 357     pr -n -t $1 >> $logfile
 358     log END $1
 359 }
 360
 361 echolog(){
 362     log "$@"
 363     echo "$@"
 364 }
 365
 366 warn(){
 367     log "WARNING: $*"
 368     WARNINGS="${WARNINGS}WARNING: $*\n"
 369 }
 370
 371 die(){
 372     echolog "$@"
 373     cat <<EOF
 374
 375 If you think configure made a mistake, make sure you are using the latest
 376 version from Git.  If the latest version fails, report the problem to the
 377 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 378 EOF
 379     if disabled logging; then
 380         cat <<EOF
 381 Rerun configure with logging enabled (do not use --disable-logging), and
 382 include the log this produces with your report.
 383 EOF
 384     else
 385         cat <<EOF
 386 Include the log file "$logfile" produced by configure as this will help
 387 solving the problem.
 388 EOF
 389     fi
 390     exit 1
 391 }
 392
 393 # Avoid locale weirdness, besides we really just want to translate ASCII.
 394 toupper(){
 395     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 396 }
 397
 398 tolower(){
 399     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 400 }
 401
 402 c_escape(){
 403     echo "$*" | sed 's/["\\]/\\\0/g'
 404 }
 405
 406 sh_quote(){
 407     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 408     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 409     echo "$v"
 410 }
 411
 412 cleanws(){
 413     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 414 }
 415
 416 filter(){
 417     pat=$1
 418     shift
 419     for v; do
 420         eval "case $v in $pat) echo $v ;; esac"
 421     done
 422 }
 423
 424 filter_out(){
 425     pat=$1
 426     shift
 427     for v; do
 428         eval "case $v in $pat) ;; *) echo $v ;; esac"
 429     done
 430 }
 431
 432 map(){
 433     m=$1
 434     shift
 435     for v; do eval $m; done
 436 }
 437
 438 add_suffix(){
 439     suffix=$1
 440     shift
 441     for v; do echo ${v}${suffix}; done
 442 }
 443
 444 set_all(){
 445     value=$1
 446     shift
 447     for var in $*; do
 448         eval $var=$value
 449     done
 450 }
 451
 452 set_weak(){
 453     value=$1
 454     shift
 455     for var; do
 456         eval : \${$var:=$value}
 457     done
 458 }
 459
 460 sanitize_var_name(){
 461     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 462 }
 463
 464 set_safe(){
 465     var=$1
 466     shift
 467     eval $(sanitize_var_name "$var")='$*'
 468 }
 469
 470 get_safe(){
 471     eval echo \$$(sanitize_var_name "$1")
 472 }
 473
 474 pushvar(){
 475     for var in $*; do
 476         eval level=\${${var}_level:=0}
 477         eval ${var}_${level}="\$$var"
 478         eval ${var}_level=$(($level+1))
 479     done
 480 }
 481
 482 popvar(){
 483     for var in $*; do
 484         eval level=\${${var}_level:-0}
 485         test $level = 0 && continue
 486         eval level=$(($level-1))
 487         eval $var="\${${var}_${level}}"
 488         eval ${var}_level=$level
 489         eval unset ${var}_${level}
 490     done
 491 }
 492
 493 enable(){
 494     set_all yes $*
 495 }
 496
 497 disable(){
 498     set_all no $*
 499 }
 500
 501 enable_weak(){
 502     set_weak yes $*
 503 }
 504
 505 disable_weak(){
 506     set_weak no $*
 507 }
 508
 509 enable_safe(){
 510     for var; do
 511         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 512     done
 513 }
 514
 515 disable_safe(){
 516     for var; do
 517         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 518     done
 519 }
 520
 521 do_enable_deep(){
 522     for var; do
 523         enabled $var && continue
 524         eval sel="\$${var}_select"
 525         eval sgs="\$${var}_suggest"
 526         pushvar var sgs
 527         enable_deep $sel
 528         popvar sgs
 529         enable_deep_weak $sgs
 530         popvar var
 531     done
 532 }
 533
 534 enable_deep(){
 535     do_enable_deep $*
 536     enable $*
 537 }
 538
 539 enable_deep_weak(){
 540     do_enable_deep $*
 541     enable_weak $*
 542 }
 543
 544 enabled(){
 545     test "${1#!}" = "$1" && op== || op=!=
 546     eval test "x\$${1#!}" $op "xyes"
 547 }
 548
 549 disabled(){
 550     test "${1#!}" = "$1" && op== || op=!=
 551     eval test "x\$${1#!}" $op "xno"
 552 }
 553
 554 enabled_all(){
 555     for opt; do
 556         enabled $opt || return 1
 557     done
 558 }
 559
 560 disabled_all(){
 561     for opt; do
 562         disabled $opt || return 1
 563     done
 564 }
 565
 566 enabled_any(){
 567     for opt; do
 568         enabled $opt && return 0
 569     done
 570 }
 571
 572 disabled_any(){
 573     for opt; do
 574         disabled $opt && return 0
 575     done
 576     return 1
 577 }
 578
 579 set_default(){
 580     for opt; do
 581         eval : \${$opt:=\$${opt}_default}
 582     done
 583 }
 584
 585 is_in(){
 586     value=$1
 587     shift
 588     for var in $*; do
 589         [ $var = $value ] && return 0
 590     done
 591     return 1
 592 }
 593
 594 do_check_deps(){
 595     for cfg; do
 596         cfg="${cfg#!}"
 597         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 598         disabled ${cfg}_checking && continue
 599         enable ${cfg}_checking
 600         append allopts $cfg
 601
 602         eval dep_all="\$${cfg}_deps"
 603         eval dep_any="\$${cfg}_deps_any"
 604         eval dep_sel="\$${cfg}_select"
 605         eval dep_sgs="\$${cfg}_suggest"
 606         eval dep_ifa="\$${cfg}_if"
 607         eval dep_ifn="\$${cfg}_if_any"
 608
 609         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 610         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 611         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 612
 613         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 614         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 615         enabled_all  $dep_all || disable $cfg
 616         enabled_any  $dep_any || disable $cfg
 617         disabled_any $dep_sel && disable $cfg
 618
 619         if enabled $cfg; then
 620             enable_deep $dep_sel
 621             enable_deep_weak $dep_sgs
 622         fi
 623
 624         disable ${cfg}_checking
 625     done
 626 }
 627
 628 check_deps(){
 629     unset allopts
 630
 631     do_check_deps "$@"
 632
 633     for cfg in $allopts; do
 634         enabled $cfg || continue
 635         eval dep_extralibs="\$${cfg}_extralibs"
 636         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 637     done
 638 }
 639
 640 print_config(){
 641     pfx=$1
 642     files=$2
 643     shift 2
 644     map 'eval echo "$v \${$v:-no}"' "$@" |
 645     awk "BEGIN { split(\"$files\", files) }
 646         {
 647             c = \"$pfx\" toupper(\$1);
 648             v = \$2;
 649             sub(/yes/, 1, v);
 650             sub(/no/,  0, v);
 651             for (f in files) {
 652                 file = files[f];
 653                 if (file ~ /\\.h\$/) {
 654                     printf(\"#define %s %d\\n\", c, v) >>file;
 655                 } else if (file ~ /\\.asm\$/) {
 656                     printf(\"%%define %s %d\\n\", c, v) >>file;
 657                 } else if (file ~ /\\.mak\$/) {
 658                     n = -v ? \"\" : \"!\";
 659                     printf(\"%s%s=yes\\n\", n, c) >>file;
 660                 }
 661             }
 662         }"
 663 }
 664
 665 print_enabled(){
 666     suf=$1
 667     shift
 668     for v; do
 669         enabled $v && printf "%s\n" ${v%$suf};
 670     done
 671 }
 672
 673 append(){
 674     var=$1
 675     shift
 676     eval "$var=\"\$$var $*\""
 677 }
 678
 679 prepend(){
 680     var=$1
 681     shift
 682     eval "$var=\"$* \$$var\""
 683 }
 684
 685 add_cppflags(){
 686     append CPPFLAGS "$@"
 687 }
 688
 689 add_cflags(){
 690     append CFLAGS $($cflags_filter "$@")
 691 }
 692
 693 add_cxxflags(){
 694     append CXXFLAGS $($cflags_filter "$@")
 695 }
 696
 697 add_asflags(){
 698     append ASFLAGS $($asflags_filter "$@")
 699 }
 700
 701 add_ldflags(){
 702     append LDFLAGS $($ldflags_filter "$@")
 703 }
 704
 705 add_extralibs(){
 706     prepend extralibs $($ldflags_filter "$@")
 707 }
 708
 709 add_host_cppflags(){
 710     append host_cppflags "$@"
 711 }
 712
 713 add_host_cflags(){
 714     append host_cflags $($host_cflags_filter "$@")
 715 }
 716
 717 add_host_ldflags(){
 718     append host_ldflags $($host_ldflags_filter "$@")
 719 }
 720
 721 add_compat(){
 722     append compat_objs $1
 723     shift
 724     map 'add_cppflags -D$v' "$@"
 725 }
 726
 727 check_cmd(){
 728     log "$@"
 729     "$@" >> $logfile 2>&1
 730 }
 731
 732 cc_o(){
 733     eval printf '%s\\n' $CC_O
 734 }
 735
 736 cc_e(){
 737     eval printf '%s\\n' $CC_E
 738 }
 739
 740 check_cc(){
 741     log check_cc "$@"
 742     cat > $TMPC
 743     log_file $TMPC
 744     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 745 }
 746
 747 check_cxx(){
 748     log check_cxx "$@"
 749     cat > $TMPCPP
 750     log_file $TMPCPP
 751     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 752 }
 753
 754 check_cpp(){
 755     log check_cpp "$@"
 756     cat > $TMPC
 757     log_file $TMPC
 758     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 759 }
 760
 761 as_o(){
 762     eval printf '%s\\n' $AS_O
 763 }
 764
 765 check_as(){
 766     log check_as "$@"
 767     cat > $TMPS
 768     log_file $TMPS
 769     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 770 }
 771
 772 check_inline_asm(){
 773     log check_inline_asm "$@"
 774     name="$1"
 775     code="$2"
 776     shift 2
 777     disable $name
 778     check_cc "$@" <<EOF && enable $name
 779 void foo(void){ __asm__ volatile($code); }
 780 EOF
 781 }
 782
 783 check_insn(){
 784     log check_insn "$@"
 785     check_inline_asm ${1}_inline "\"$2\""
 786     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 787 }
 788
 789 check_yasm(){
 790     log check_yasm "$@"
 791     echo "$1" > $TMPS
 792     log_file $TMPS
 793     shift 1
 794     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 795 }
 796
 797 ld_o(){
 798     eval printf '%s\\n' $LD_O
 799 }
 800
 801 check_ld(){
 802     log check_ld "$@"
 803     type=$1
 804     shift 1
 805     flags=$(filter_out '-l*|*.so' $@)
 806     libs=$(filter '-l*|*.so' $@)
 807     check_$type $($cflags_filter $flags) || return
 808     flags=$($ldflags_filter $flags)
 809     libs=$($ldflags_filter $libs)
 810     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 811 }
 812
 813 check_code(){
 814     log check_code "$@"
 815     check=$1
 816     headers=$2
 817     code=$3
 818     shift 3
 819     {
 820         for hdr in $headers; do
 821             echo "#include <$hdr>"
 822         done
 823         echo "int main(void) { $code; return 0; }"
 824     } | check_$check "$@"
 825 }
 826
 827 check_cppflags(){
 828     log check_cppflags "$@"
 829     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 830 int x;
 831 EOF
 832 }
 833
 834 check_cflags(){
 835     log check_cflags "$@"
 836     set -- $($cflags_filter "$@")
 837     check_cc "$@" <<EOF && append CFLAGS "$@"
 838 int x;
 839 EOF
 840 }
 841
 842 check_cxxflags(){
 843     log check_cxxflags "$@"
 844     set -- $($cflags_filter "$@")
 845     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 846 int x;
 847 EOF
 848 }
 849
 850 test_ldflags(){
 851     log test_ldflags "$@"
 852     check_ld "cc" "$@" <<EOF
 853 int main(void){ return 0; }
 854 EOF
 855 }
 856
 857 check_ldflags(){
 858     log check_ldflags "$@"
 859     test_ldflags "$@" && add_ldflags "$@"
 860 }
 861
 862 check_header(){
 863     log check_header "$@"
 864     header=$1
 865     shift
 866     disable_safe $header
 867     check_cpp "$@" <<EOF && enable_safe $header
 868 #include <$header>
 869 int x;
 870 EOF
 871 }
 872
 873 check_func(){
 874     log check_func "$@"
 875     func=$1
 876     shift
 877     disable $func
 878     check_ld "cc" "$@" <<EOF && enable $func
 879 extern int $func();
 880 int main(void){ $func(); }
 881 EOF
 882 }
 883
 884 check_mathfunc(){
 885     log check_mathfunc "$@"
 886     func=$1
 887     narg=$2
 888     shift 2
 889     test $narg = 2 && args="f, g" || args="f"
 890     disable $func
 891     check_ld "cc" "$@" <<EOF && enable $func
 892 #include <math.h>
 893 float foo(float f, float g) { return $func($args); }
 894 int main(void){ return (int) foo; }
 895 EOF
 896 }
 897
 898 check_func_headers(){
 899     log check_func_headers "$@"
 900     headers=$1
 901     funcs=$2
 902     shift 2
 903     {
 904         for hdr in $headers; do
 905             echo "#include <$hdr>"
 906         done
 907         for func in $funcs; do
 908             echo "long check_$func(void) { return (long) $func; }"
 909         done
 910         echo "int main(void) { return 0; }"
 911     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 912 }
 913
 914 check_class_headers_cpp(){
 915     log check_class_headers_cpp "$@"
 916     headers=$1
 917     classes=$2
 918     shift 2
 919     {
 920         for hdr in $headers; do
 921             echo "#include <$hdr>"
 922         done
 923         echo "int main(void) { "
 924         i=1
 925         for class in $classes; do
 926             echo "$class obj$i;"
 927             i=$(expr $i + 1)
 928         done
 929         echo "return 0; }"
 930     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 931 }
 932
 933 check_cpp_condition(){
 934     log check_cpp_condition "$@"
 935     header=$1
 936     condition=$2
 937     shift 2
 938     check_cpp "$@" <<EOF
 939 #include <$header>
 940 #if !($condition)
 941 #error "unsatisfied condition: $condition"
 942 #endif
 943 EOF
 944 }
 945
 946 check_lib(){
 947     log check_lib "$@"
 948     header="$1"
 949     func="$2"
 950     shift 2
 951     check_header $header && check_func $func "$@" && add_extralibs "$@"
 952 }
 953
 954 check_lib2(){
 955     log check_lib2 "$@"
 956     headers="$1"
 957     funcs="$2"
 958     shift 2
 959     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 960 }
 961
 962 check_lib_cpp(){
 963     log check_lib_cpp "$@"
 964     headers="$1"
 965     classes="$2"
 966     shift 2
 967     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 968 }
 969
 970 check_pkg_config(){
 971     log check_pkg_config "$@"
 972     pkg="$1"
 973     headers="$2"
 974     funcs="$3"
 975     shift 3
 976     $pkg_config --exists $pkg 2>/dev/null || return
 977     pkg_cflags=$($pkg_config --cflags $pkg)
 978     pkg_libs=$($pkg_config --libs $pkg)
 979     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 980         set_safe ${pkg}_cflags $pkg_cflags   &&
 981         set_safe ${pkg}_libs   $pkg_libs
 982 }
 983
 984 check_exec(){
 985     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 986 }
 987
 988 check_exec_crash(){
 989     code=$(cat)
 990
 991     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 992     # are safe but may not be available everywhere.  Thus we use
 993     # raise(SIGTERM) instead.  The check is run in a subshell so we
 994     # can redirect the "Terminated" message from the shell.  SIGBUS
 995     # is not defined by standard C so it is used conditionally.
 996
 997     (check_exec "$@") >> $logfile 2>&1 <<EOF
 998 #include <signal.h>
 999 static void sighandler(int sig){
1000     raise(SIGTERM);
1001 }
1002 int func(void){
1003     $code
1004 }
1005 int (*func_ptr)(void) = func;
1006 int main(void){
1007     signal(SIGILL, sighandler);
1008     signal(SIGFPE, sighandler);
1009     signal(SIGSEGV, sighandler);
1010 #ifdef SIGBUS
1011     signal(SIGBUS, sighandler);
1012 #endif
1013     return func_ptr();
1014 }
1015 EOF
1016 }
1017
1018 check_type(){
1019     log check_type "$@"
1020     headers=$1
1021     type=$2
1022     shift 2
1023     disable_safe "$type"
1024     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1025 }
1026
1027 check_struct(){
1028     log check_struct "$@"
1029     headers=$1
1030     struct=$2
1031     member=$3
1032     shift 3
1033     disable_safe "${struct}_${member}"
1034     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1035         enable_safe "${struct}_${member}"
1036 }
1037
1038 check_builtin(){
1039     log check_builtin "$@"
1040     name=$1
1041     headers=$2
1042     builtin=$3
1043     shift 3
1044     disable "$name"
1045     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1046 }
1047
1048 require(){
1049     name="$1"
1050     header="$2"
1051     func="$3"
1052     shift 3
1053     check_lib $header $func "$@" || die "ERROR: $name not found"
1054 }
1055
1056 require2(){
1057     name="$1"
1058     headers="$2"
1059     func="$3"
1060     shift 3
1061     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1062 }
1063
1064 require_cpp(){
1065     name="$1"
1066     headers="$2"
1067     classes="$3"
1068     shift 3
1069     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1070 }
1071
1072 require_pkg_config(){
1073     pkg="$1"
1074     check_pkg_config "$@" || die "ERROR: $pkg not found"
1075     add_cflags    $(get_safe ${pkg}_cflags)
1076     add_extralibs $(get_safe ${pkg}_libs)
1077 }
1078
1079 hostcc_o(){
1080     eval printf '%s\\n' $HOSTCC_O
1081 }
1082
1083 check_host_cc(){
1084     log check_host_cc "$@"
1085     cat > $TMPC
1086     log_file $TMPC
1087     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1088 }
1089
1090 check_host_cppflags(){
1091     log check_host_cppflags "$@"
1092     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1093 int x;
1094 EOF
1095 }
1096
1097 check_host_cflags(){
1098     log check_host_cflags "$@"
1099     set -- $($host_cflags_filter "$@")
1100     check_host_cc "$@" <<EOF && append host_cflags "$@"
1101 int x;
1102 EOF
1103 }
1104
1105 apply(){
1106     file=$1
1107     shift
1108     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1109 }
1110
1111 cp_if_changed(){
1112     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1113     mkdir -p "$(dirname $2)"
1114     $cp_f "$1" "$2"
1115 }
1116
1117 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1118 # system-dependent things.
1119
1120 COMPONENT_LIST="
1121     bsfs
1122     decoders
1123     demuxers
1124     encoders
1125     filters
1126     hwaccels
1127     indevs
1128     muxers
1129     outdevs
1130     parsers
1131     protocols
1132 "
1133
1134 EXTERNAL_LIBRARY_LIST="
1135     avisynth
1136     bzlib
1137     crystalhd
1138     fontconfig
1139     frei0r
1140     gnutls
1141     iconv
1142     libaacplus
1143     libass
1144     libbluray
1145     libcaca
1146     libcdio
1147     libcelt
1148     libdc1394
1149     libfaac
1150     libfdk_aac
1151     libflite
1152     libfreetype
1153     libgsm
1154     libiec61883
1155     libilbc
1156     libmodplug
1157     libmp3lame
1158     libnut
1159     libopencore_amrnb
1160     libopencore_amrwb
1161     libopencv
1162     libopenjpeg
1163     libopus
1164     libpulse
1165     librtmp
1166     libschroedinger
1167     libsoxr
1168     libspeex
1169     libstagefright_h264
1170     libtheora
1171     libtwolame
1172     libutvideo
1173     libv4l2
1174     libvo_aacenc
1175     libvo_amrwbenc
1176     libvorbis
1177     libvpx
1178     libx264
1179     libxavs
1180     libxvid
1181     openal
1182     openssl
1183     x11grab
1184     zlib
1185 "
1186
1187 DOCUMENT_LIST="
1188     doc
1189     htmlpages
1190     manpages
1191     podpages
1192     txtpages
1193 "
1194
1195 HWACCEL_LIST="
1196     dxva2
1197     vaapi
1198     vda
1199     vdpau
1200 "
1201
1202 LIBRARY_LIST="
1203     avcodec
1204     avdevice
1205     avfilter
1206     avformat
1207     avresample
1208     avutil
1209     postproc
1210     swresample
1211     swscale
1212 "
1213
1214 PROGRAM_LIST="
1215     ffplay
1216     ffprobe
1217     ffserver
1218     ffmpeg
1219 "
1220
1221 CONFIG_LIST="
1222     $COMPONENT_LIST
1223     $DOCUMENT_LIST
1224     $EXTERNAL_LIBRARY_LIST
1225     $HWACCEL_LIST
1226     $LIBRARY_LIST
1227     $PROGRAM_LIST
1228     dct
1229     dwt
1230     fast_unaligned
1231     fft
1232     ftrapv
1233     gpl
1234     gray
1235     hardcoded_tables
1236     incompatible_fork_abi
1237     lsp
1238     lzo
1239     mdct
1240     memalign_hack
1241     memory_poisoning
1242     network
1243     nonfree
1244     pic
1245     rdft
1246     runtime_cpudetect
1247     safe_bitstream_reader
1248     shared
1249     small
1250     sram
1251     static
1252     swscale_alpha
1253     thumb
1254     version3
1255     xmm_clobber_test
1256 "
1257
1258 THREADS_LIST='
1259     pthreads
1260     w32threads
1261     os2threads
1262 '
1263
1264 ARCH_LIST='
1265     aarch64
1266     alpha
1267     arm
1268     avr32
1269     avr32_ap
1270     avr32_uc
1271     bfin
1272     ia64
1273     m68k
1274     mips
1275     mips64
1276     parisc
1277     ppc
1278     ppc64
1279     s390
1280     sh4
1281     sparc
1282     sparc64
1283     tilegx
1284     tilepro
1285     tomi
1286     x86
1287     x86_32
1288     x86_64
1289 '
1290
1291 ARCH_EXT_LIST_ARM='
1292     armv5te
1293     armv6
1294     armv6t2
1295     neon
1296     vfp
1297     vfpv3
1298 '
1299
1300 ARCH_EXT_LIST_X86='
1301     amd3dnow
1302     amd3dnowext
1303     avx
1304     fma4
1305     mmx
1306     mmxext
1307     sse
1308     sse2
1309     sse3
1310     sse4
1311     sse42
1312     ssse3
1313 '
1314
1315 ARCH_EXT_LIST="
1316     $ARCH_EXT_LIST_ARM
1317     $ARCH_EXT_LIST_X86
1318     altivec
1319     ppc4xx
1320     vis
1321     mipsfpu
1322     mips32r2
1323     mipsdspr1
1324     mipsdspr2
1325 "
1326
1327 HAVE_LIST_CMDLINE='
1328     inline_asm
1329     symver
1330     yasm
1331 '
1332
1333 HAVE_LIST_PUB='
1334     bigendian
1335     fast_unaligned
1336     incompatible_fork_abi
1337 '
1338
1339 MATH_FUNCS="
1340     atanf
1341     atan2f
1342     cbrt
1343     cbrtf
1344     cosf
1345     exp2
1346     exp2f
1347     expf
1348     isinf
1349     isnan
1350     ldexpf
1351     llrint
1352     llrintf
1353     log2
1354     log2f
1355     log10f
1356     lrint
1357     lrintf
1358     powf
1359     rint
1360     round
1361     roundf
1362     sinf
1363     trunc
1364     truncf
1365 "
1366
1367 HAVE_LIST="
1368     $ARCH_EXT_LIST
1369     $(add_suffix _external $ARCH_EXT_LIST)
1370     $(add_suffix _inline   $ARCH_EXT_LIST)
1371     $HAVE_LIST_CMDLINE
1372     $HAVE_LIST_PUB
1373     $THREADS_LIST
1374     $MATH_FUNCS
1375     access
1376     aligned_malloc
1377     aligned_stack
1378     alsa_asoundlib_h
1379     altivec_h
1380     arpa_inet_h
1381     asm_mod_q
1382     asm_mod_y
1383     asm_types_h
1384     attribute_may_alias
1385     attribute_packed
1386     cdio_paranoia_h
1387     cdio_paranoia_paranoia_h
1388     clock_gettime
1389     closesocket
1390     cmov
1391     CommandLineToArgvW
1392     cpunop
1393     CryptGenRandom
1394     dcbzl
1395     dev_bktr_ioctl_bt848_h
1396     dev_bktr_ioctl_meteor_h
1397     dev_ic_bt8xx_h
1398     dev_video_bktr_ioctl_bt848_h
1399     dev_video_meteor_ioctl_meteor_h
1400     direct_h
1401     dlfcn_h
1402     dlopen
1403     dos_paths
1404     dxva_h
1405     ebp_available
1406     ebx_available
1407     fast_64bit
1408     fast_clz
1409     fast_cmov
1410     fcntl
1411     fork
1412     getaddrinfo
1413     gethrtime
1414     getopt
1415     GetProcessAffinityMask
1416     GetProcessMemoryInfo
1417     GetProcessTimes
1418     GetSystemTimeAsFileTime
1419     getrusage
1420     getservbyport
1421     gettimeofday
1422     glob
1423     gnu_as
1424     gsm_h
1425     ibm_asm
1426     inet_aton
1427     io_h
1428     isatty
1429     jack_port_get_latency_range
1430     kbhit
1431     ldbrx
1432     libdc1394_1
1433     libdc1394_2
1434     local_aligned_16
1435     local_aligned_8
1436     localtime_r
1437     loongson
1438     lzo1x_999_compress
1439     machine_ioctl_bt848_h
1440     machine_ioctl_meteor_h
1441     makeinfo
1442     malloc_h
1443     MapViewOfFile
1444     memalign
1445     mkstemp
1446     mm_empty
1447     mmap
1448     mprotect
1449     msvcrt
1450     nanosleep
1451     openjpeg_1_5_openjpeg_h
1452     PeekNamedPipe
1453     perl
1454     pod2man
1455     poll_h
1456     posix_memalign
1457     pthread_cancel
1458     rdtsc
1459     rsync_contimeout
1460     sched_getaffinity
1461     sdl
1462     sdl_video_size
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     sysconf
1485     sysctl
1486     sys_mman_h
1487     sys_param_h
1488     sys_resource_h
1489     sys_select_h
1490     sys_soundcard_h
1491     sys_time_h
1492     sys_videoio_h
1493     termios_h
1494     texi2html
1495     threads
1496     unistd_h
1497     usleep
1498     vfp_args
1499     VirtualAlloc
1500     windows_h
1501     winsock2_h
1502     xform_asm
1503     xmm_clobbers
1504 "
1505
1506 # options emitted with CONFIG_ prefix but not available on the command line
1507 CONFIG_EXTRA="
1508     aandcttables
1509     ac3dsp
1510     audio_frame_queue
1511     error_resilience
1512     gcrypt
1513     golomb
1514     gplv3
1515     h264chroma
1516     h264dsp
1517     h264pred
1518     h264qpel
1519     huffman
1520     lgplv3
1521     lpc
1522     mpegaudio
1523     mpegaudiodsp
1524     mpegvideo
1525     mpegvideoenc
1526     nettle
1527     rangecoder
1528     rtpdec
1529     rtpenc_chain
1530     sinewin
1531     videodsp
1532     vp3dsp
1533 "
1534
1535 CMDLINE_SELECT="
1536     $ARCH_EXT_LIST
1537     $CONFIG_LIST
1538     $HAVE_LIST_CMDLINE
1539     $THREADS_LIST
1540     asm
1541     coverage
1542     cross_compile
1543     debug
1544     extra_warnings
1545     logging
1546     lto
1547     optimizations
1548     stripping
1549 "
1550
1551 PATHS_LIST='
1552     bindir
1553     datadir
1554     incdir
1555     libdir
1556     mandir
1557     prefix
1558     shlibdir
1559 '
1560
1561 CMDLINE_SET="
1562     $PATHS_LIST
1563     ar
1564     arch
1565     as
1566     assert_level
1567     build_suffix
1568     cc
1569     cpu
1570     cross_prefix
1571     cxx
1572     custom_libname_with_major
1573     dep_cc
1574     extra_version
1575     host_cc
1576     host_cflags
1577     host_ld
1578     host_ldflags
1579     host_libs
1580     host_os
1581     install
1582     ld
1583     logfile
1584     malloc_prefix
1585     nm
1586     optflags
1587     pkg_config
1588     progs_suffix
1589     random_seed
1590     samples
1591     strip
1592     sysinclude
1593     sysroot
1594     target_exec
1595     target_os
1596     target_path
1597     toolchain
1598     valgrind
1599     yasmexe
1600 "
1601
1602 CMDLINE_APPEND="
1603     extra_cflags
1604     extra_cxxflags
1605     host_cppflags
1606 "
1607
1608 # code dependency declarations
1609
1610 # architecture extensions
1611
1612 armv5te_deps="arm"
1613 armv6_deps="arm"
1614 armv6t2_deps="arm"
1615 neon_deps="arm"
1616 vfp_deps="arm"
1617 vfpv3_deps="vfp"
1618
1619 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1620
1621 mipsfpu_deps="mips"
1622 mips32r2_deps="mips"
1623 mipsdspr1_deps="mips"
1624 mipsdspr2_deps="mips"
1625
1626 altivec_deps="ppc"
1627 ppc4xx_deps="ppc"
1628
1629 vis_deps="sparc"
1630
1631 x86_64_suggest="cmov fast_cmov"
1632
1633 amd3dnow_deps="mmx"
1634 amd3dnowext_deps="amd3dnow"
1635 mmx_deps="x86"
1636 mmxext_deps="mmx"
1637 sse_deps="mmxext"
1638 sse2_deps="sse"
1639 sse3_deps="sse2"
1640 ssse3_deps="sse3"
1641 sse4_deps="ssse3"
1642 sse42_deps="sse4"
1643 avx_deps="sse42"
1644 fma4_deps="avx"
1645
1646 mmx_external_deps="yasm"
1647 mmx_inline_deps="inline_asm"
1648 mmx_suggest="mmx_external mmx_inline"
1649
1650 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1651     eval dep=\$${ext}_deps
1652     eval ${ext}_external_deps='"${dep}_external"'
1653     eval ${ext}_inline_deps='"${dep}_inline"'
1654     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1655 done
1656
1657 aligned_stack_if_any="ppc x86"
1658 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1659 fast_clz_if_any="alpha avr32 mips ppc x86"
1660 fast_unaligned_if_any="ppc x86"
1661
1662 inline_asm_deps="!tms470"
1663 need_memalign="altivec neon sse"
1664
1665 symver_if_any="symver_asm_label symver_gnu_asm"
1666
1667 log2_deps="!msvcrt"
1668
1669 # subsystems
1670 dct_select="rdft"
1671 mdct_select="fft"
1672 rdft_select="fft"
1673 mpegaudio_select="mpegaudiodsp"
1674 mpegaudiodsp_select="dct"
1675 mpegvideo_select="error_resilience videodsp h264chroma"
1676 mpegvideoenc_select="mpegvideo"
1677
1678 # decoders / encoders
1679 aac_decoder_select="mdct sinewin"
1680 aac_encoder_select="audio_frame_queue mdct sinewin"
1681 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1682 ac3_decoder_select="mdct ac3dsp ac3_parser"
1683 ac3_encoder_select="mdct ac3dsp"
1684 ac3_fixed_encoder_select="mdct ac3dsp"
1685 alac_encoder_select="lpc"
1686 amrnb_decoder_select="lsp"
1687 amrwb_decoder_select="lsp"
1688 amv_encoder_select="aandcttables"
1689 atrac1_decoder_select="mdct sinewin"
1690 atrac3_decoder_select="mdct"
1691 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1692 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1693 cavs_decoder_select="golomb h264chroma mpegvideo"
1694 comfortnoise_encoder_select="lpc"
1695 cook_decoder_select="mdct sinewin"
1696 cscd_decoder_select="lzo"
1697 cscd_decoder_suggest="zlib"
1698 dca_decoder_select="mdct"
1699 dirac_decoder_select="dwt golomb videodsp"
1700 dnxhd_encoder_select="aandcttables mpegvideoenc"
1701 dxa_decoder_select="zlib"
1702 eac3_decoder_select="ac3_decoder"
1703 eac3_encoder_select="ac3_encoder"
1704 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1705 eatgq_decoder_select="aandcttables"
1706 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1707 exr_decoder_select="zlib"
1708 ffv1_decoder_select="golomb rangecoder"
1709 ffv1_encoder_select="rangecoder"
1710 ffvhuff_encoder_select="huffman"
1711 flac_decoder_select="golomb"
1712 flac_encoder_select="golomb lpc"
1713 flashsv_decoder_select="zlib"
1714 flashsv_encoder_select="zlib"
1715 flashsv2_encoder_select="zlib"
1716 flashsv2_decoder_select="zlib"
1717 flv_decoder_select="h263_decoder"
1718 flv_encoder_select="h263_encoder"
1719 fraps_decoder_select="huffman"
1720 h261_decoder_select="error_resilience mpegvideo"
1721 h261_encoder_select="aandcttables mpegvideoenc"
1722 h263_decoder_select="error_resilience h263_parser mpegvideo"
1723 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1724 h263i_decoder_select="h263_decoder"
1725 h263p_encoder_select="h263_encoder"
1726 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1727 huffyuv_encoder_select="huffman"
1728 iac_decoder_select="fft mdct sinewin"
1729 imc_decoder_select="fft mdct sinewin"
1730 jpegls_decoder_select="golomb"
1731 jpegls_encoder_select="golomb"
1732 ljpeg_encoder_select="aandcttables mpegvideoenc"
1733 loco_decoder_select="golomb"
1734 mdec_decoder_select="error_resilience mpegvideo"
1735 mjpeg_encoder_select="aandcttables mpegvideoenc"
1736 mlp_decoder_select="mlp_parser"
1737 mp1_decoder_select="mpegaudio"
1738 mp1float_decoder_select="mpegaudio"
1739 mp2_decoder_select="mpegaudio"
1740 mp2float_decoder_select="mpegaudio"
1741 mp3_decoder_select="mpegaudio"
1742 mp3adu_decoder_select="mpegaudio"
1743 mp3adufloat_decoder_select="mpegaudio"
1744 mp3float_decoder_select="mpegaudio"
1745 mp3on4_decoder_select="mpegaudio"
1746 mp3on4float_decoder_select="mpegaudio"
1747 mpc7_decoder_select="mpegaudiodsp"
1748 mpc8_decoder_select="mpegaudiodsp"
1749 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1750 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1751 mpeg1video_decoder_select="error_resilience mpegvideo"
1752 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1753 mpeg2video_decoder_select="error_resilience mpegvideo"
1754 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1755 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1756 mpeg4_encoder_select="h263_encoder"
1757 msmpeg4v1_decoder_select="h263_decoder"
1758 msmpeg4v1_encoder_select="h263_encoder"
1759 msmpeg4v2_decoder_select="h263_decoder"
1760 msmpeg4v2_encoder_select="h263_encoder"
1761 msmpeg4v3_decoder_select="h263_decoder"
1762 msmpeg4v3_encoder_select="h263_encoder"
1763 mss2_decoder_select="vc1_decoder"
1764 nellymoser_decoder_select="mdct sinewin"
1765 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1766 nuv_decoder_select="lzo"
1767 png_decoder_select="zlib"
1768 png_encoder_select="zlib"
1769 qcelp_decoder_select="lsp"
1770 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1771 ra_144_encoder_select="audio_frame_queue lpc"
1772 ralf_decoder_select="golomb"
1773 rv10_decoder_select="h263_decoder"
1774 rv10_encoder_select="h263_encoder"
1775 rv20_decoder_select="h263_decoder"
1776 rv20_encoder_select="h263_encoder"
1777 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1778 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1779 shorten_decoder_select="golomb"
1780 sipr_decoder_select="lsp"
1781 snow_decoder_select="dwt h264qpel rangecoder"
1782 snow_encoder_select="aandcttables dwt h264qpel error_resilience mpegvideoenc rangecoder"
1783 sonic_decoder_select="golomb"
1784 sonic_encoder_select="golomb"
1785 sonic_ls_encoder_select="golomb"
1786 svq1_decoder_select="error_resilience mpegvideo"
1787 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1788 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1789 svq3_decoder_suggest="zlib"
1790 theora_decoder_select="vp3_decoder"
1791 tiff_decoder_suggest="zlib"
1792 tiff_encoder_suggest="zlib"
1793 truehd_decoder_select="mlp_parser"
1794 tscc_decoder_select="zlib"
1795 twinvq_decoder_select="mdct lsp sinewin"
1796 utvideo_encoder_select="huffman"
1797 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1798 vc1image_decoder_select="vc1_decoder"
1799 vorbis_decoder_select="mdct"
1800 vorbis_encoder_select="mdct"
1801 vp3_decoder_select="vp3dsp videodsp"
1802 vp5_decoder_select="h264chroma vp3dsp videodsp"
1803 vp6_decoder_select="h264chroma huffman vp3dsp videodsp"
1804 vp6a_decoder_select="vp6_decoder"
1805 vp6f_decoder_select="vp6_decoder"
1806 vp8_decoder_select="h264pred videodsp"
1807 wmapro_decoder_select="mdct sinewin"
1808 wmav1_decoder_select="mdct sinewin"
1809 wmav1_encoder_select="mdct sinewin"
1810 wmav2_decoder_select="mdct sinewin"
1811 wmav2_encoder_select="mdct sinewin"
1812 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1813 wmv1_decoder_select="h263_decoder"
1814 wmv1_encoder_select="h263_encoder"
1815 wmv2_decoder_select="h263_decoder"
1816 wmv2_encoder_select="h263_encoder"
1817 wmv3_decoder_select="vc1_decoder"
1818 wmv3image_decoder_select="wmv3_decoder"
1819 zerocodec_decoder_select="zlib"
1820 zlib_decoder_select="zlib"
1821 zlib_encoder_select="zlib"
1822 zmbv_decoder_select="zlib"
1823 zmbv_encoder_select="zlib"
1824
1825 # hardware accelerators
1826 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1827 dxva2_deps="dxva2api_h"
1828 vaapi_deps="va_va_h"
1829 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1830 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1831 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1832
1833 h263_vaapi_hwaccel_deps="vaapi"
1834 h263_vaapi_hwaccel_select="h263_decoder"
1835 h263_vdpau_hwaccel_deps="vdpau"
1836 h263_vdpau_hwaccel_select="h263_decoder"
1837 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1838 h264_dxva2_hwaccel_deps="dxva2"
1839 h264_dxva2_hwaccel_select="h264_decoder"
1840 h264_vaapi_hwaccel_deps="vaapi"
1841 h264_vaapi_hwaccel_select="h264_decoder"
1842 h264_vda_decoder_deps="vda"
1843 h264_vda_decoder_select="h264_decoder"
1844 h264_vda_hwaccel_deps="vda"
1845 h264_vda_hwaccel_select="h264_decoder"
1846 h264_vdpau_decoder_deps="vdpau"
1847 h264_vdpau_decoder_select="h264_decoder"
1848 h264_vdpau_hwaccel_deps="vdpau"
1849 h264_vdpau_hwaccel_select="h264_decoder"
1850 mpeg_vdpau_decoder_deps="vdpau"
1851 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1852 mpeg1_vdpau_decoder_deps="vdpau"
1853 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1854 mpeg1_vdpau_hwaccel_deps="vdpau"
1855 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1856 mpeg2_crystalhd_decoder_select="crystalhd"
1857 mpeg2_dxva2_hwaccel_deps="dxva2"
1858 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1859 mpeg2_vaapi_hwaccel_deps="vaapi"
1860 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1861 mpeg2_vdpau_hwaccel_deps="vdpau"
1862 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1863 mpeg4_crystalhd_decoder_select="crystalhd"
1864 mpeg4_vaapi_hwaccel_deps="vaapi"
1865 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1866 mpeg4_vdpau_decoder_deps="vdpau"
1867 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1868 mpeg4_vdpau_hwaccel_deps="vdpau"
1869 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1870 msmpeg4_crystalhd_decoder_select="crystalhd"
1871 vc1_crystalhd_decoder_select="crystalhd"
1872 vc1_dxva2_hwaccel_deps="dxva2"
1873 vc1_dxva2_hwaccel_select="vc1_decoder"
1874 vc1_vaapi_hwaccel_deps="vaapi"
1875 vc1_vaapi_hwaccel_select="vc1_decoder"
1876 vc1_vdpau_decoder_deps="vdpau"
1877 vc1_vdpau_decoder_select="vc1_decoder"
1878 vc1_vdpau_hwaccel_deps="vdpau"
1879 vc1_vdpau_hwaccel_select="vc1_decoder"
1880 wmv3_crystalhd_decoder_select="crystalhd"
1881 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1882 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1883 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1884 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1885
1886 # parsers
1887 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1888 mpeg4video_parser_select="error_resilience mpegvideo"
1889 mpegvideo_parser_select="error_resilience mpegvideo"
1890 vc1_parser_select="error_resilience mpegvideo"
1891
1892 # external libraries
1893 libaacplus_encoder_deps="libaacplus"
1894 libcelt_decoder_deps="libcelt"
1895 libfaac_encoder_deps="libfaac"
1896 libfaac_encoder_select="audio_frame_queue"
1897 libfdk_aac_encoder_deps="libfdk_aac"
1898 libfdk_aac_encoder_select="audio_frame_queue"
1899 libgsm_decoder_deps="libgsm"
1900 libgsm_encoder_deps="libgsm"
1901 libgsm_ms_decoder_deps="libgsm"
1902 libgsm_ms_encoder_deps="libgsm"
1903 libilbc_decoder_deps="libilbc"
1904 libilbc_encoder_deps="libilbc"
1905 libmodplug_demuxer_deps="libmodplug"
1906 libmp3lame_encoder_deps="libmp3lame"
1907 libmp3lame_encoder_select="audio_frame_queue"
1908 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1909 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1910 libopencore_amrnb_encoder_select="audio_frame_queue"
1911 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1912 libopenjpeg_decoder_deps="libopenjpeg"
1913 libopenjpeg_encoder_deps="libopenjpeg"
1914 libopus_decoder_deps="libopus"
1915 libopus_encoder_deps="libopus"
1916 libopus_encoder_select="audio_frame_queue"
1917 libschroedinger_decoder_deps="libschroedinger"
1918 libschroedinger_encoder_deps="libschroedinger"
1919 libspeex_decoder_deps="libspeex"
1920 libspeex_encoder_deps="libspeex"
1921 libspeex_encoder_select="audio_frame_queue"
1922 libstagefright_h264_decoder_deps="libstagefright_h264"
1923 libtheora_encoder_deps="libtheora"
1924 libtwolame_encoder_deps="libtwolame"
1925 libvo_aacenc_encoder_deps="libvo_aacenc"
1926 libvo_aacenc_encoder_select="audio_frame_queue"
1927 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1928 libvorbis_decoder_deps="libvorbis"
1929 libvorbis_encoder_deps="libvorbis"
1930 libvorbis_encoder_select="audio_frame_queue"
1931 libvpx_vp8_decoder_deps="libvpx"
1932 libvpx_vp8_encoder_deps="libvpx"
1933 libvpx_vp9_decoder_deps="libvpx"
1934 libvpx_vp9_encoder_deps="libvpx"
1935 libx264_encoder_deps="libx264"
1936 libx264rgb_encoder_deps="libx264"
1937 libxavs_encoder_deps="libxavs"
1938 libxvid_encoder_deps="libxvid"
1939 libutvideo_decoder_deps="libutvideo"
1940 libutvideo_encoder_deps="libutvideo"
1941
1942 # demuxers / muxers
1943 ac3_demuxer_select="ac3_parser"
1944 asf_stream_muxer_select="asf_muxer"
1945 avisynth_demuxer_deps="avisynth"
1946 dirac_demuxer_select="dirac_parser"
1947 dts_demuxer_select="dca_parser"
1948 dtshd_demuxer_select="dca_parser"
1949 eac3_demuxer_select="ac3_parser"
1950 f4v_muxer_select="mov_muxer"
1951 flac_demuxer_select="flac_parser"
1952 ipod_muxer_select="mov_muxer"
1953 ismv_muxer_select="mov_muxer"
1954 libnut_demuxer_deps="libnut"
1955 libnut_muxer_deps="libnut"
1956 matroska_audio_muxer_select="matroska_muxer"
1957 matroska_demuxer_suggest="bzlib lzo zlib"
1958 mov_demuxer_suggest="zlib"
1959 mov_muxer_select="rtpenc_chain"
1960 mp3_demuxer_select="mpegaudio_parser"
1961 mp4_muxer_select="mov_muxer"
1962 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1963 mpegtsraw_demuxer_select="mpegts_demuxer"
1964 mxf_d10_muxer_select="mxf_muxer"
1965 ogg_demuxer_select="golomb"
1966 psp_muxer_select="mov_muxer"
1967 rtp_demuxer_select="sdp_demuxer"
1968 rtp_muxer_select="mpegvideo"
1969 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1970 rtsp_demuxer_select="http_protocol rtpdec"
1971 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1972 sap_demuxer_select="sdp_demuxer"
1973 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1974 sdp_demuxer_select="rtpdec"
1975 smoothstreaming_muxer_select="ismv_muxer"
1976 spdif_muxer_select="aac_parser"
1977 tak_demuxer_select="tak_parser"
1978 tg2_muxer_select="mov_muxer"
1979 tgp_muxer_select="mov_muxer"
1980 vobsub_demuxer_select="mpegps_demuxer"
1981 w64_demuxer_deps="wav_demuxer"
1982 w64_muxer_deps="wav_muxer"
1983
1984 # indevs / outdevs
1985 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1986 alsa_outdev_deps="alsa_asoundlib_h"
1987 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1988 caca_outdev_deps="libcaca"
1989 dshow_indev_deps="IBaseFilter"
1990 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1991 dv1394_indev_deps="dv1394 dv_demuxer"
1992 fbdev_indev_deps="linux_fb_h"
1993 iec61883_indev_deps="libiec61883"
1994 jack_indev_deps="jack_jack_h sem_timedwait"
1995 lavfi_indev_deps="avfilter"
1996 libcdio_indev_deps="libcdio"
1997 libdc1394_indev_deps="libdc1394"
1998 libv4l2_indev_deps="libv4l2"
1999 openal_indev_deps="openal"
2000 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2001 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2002 pulse_indev_deps="libpulse"
2003 sdl_outdev_deps="sdl"
2004 sndio_indev_deps="sndio_h"
2005 sndio_outdev_deps="sndio_h"
2006 v4l_indev_deps="linux_videodev_h"
2007 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2008 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2009 vfwcap_indev_extralibs="-lavicap32"
2010 x11grab_indev_deps="x11grab"
2011
2012 # protocols
2013 bluray_protocol_deps="libbluray"
2014 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2015 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2016 ffrtmpcrypt_protocol_select="tcp_protocol"
2017 ffrtmphttp_protocol_deps="!librtmp_protocol"
2018 ffrtmphttp_protocol_select="http_protocol"
2019 gopher_protocol_select="network"
2020 httpproxy_protocol_select="tcp_protocol"
2021 http_protocol_select="tcp_protocol"
2022 https_protocol_select="tls_protocol"
2023 librtmp_protocol_deps="librtmp"
2024 librtmpe_protocol_deps="librtmp"
2025 librtmps_protocol_deps="librtmp"
2026 librtmpt_protocol_deps="librtmp"
2027 librtmpte_protocol_deps="librtmp"
2028 mmsh_protocol_select="http_protocol"
2029 mmst_protocol_select="network"
2030 rtmp_protocol_deps="!librtmp_protocol"
2031 rtmp_protocol_select="tcp_protocol"
2032 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2033 rtmps_protocol_deps="!librtmp_protocol"
2034 rtmps_protocol_select="tls_protocol"
2035 rtmpt_protocol_select="ffrtmphttp_protocol"
2036 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2037 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2038 rtp_protocol_select="udp_protocol"
2039 sctp_protocol_deps="struct_sctp_event_subscribe"
2040 sctp_protocol_select="network"
2041 srtp_protocol_select="rtp_protocol"
2042 tcp_protocol_select="network"
2043 tls_protocol_deps_any="openssl gnutls"
2044 tls_protocol_select="tcp_protocol"
2045 udp_protocol_select="network"
2046
2047 # filters
2048 aconvert_filter_deps="swresample"
2049 amovie_filter_deps="avcodec avformat"
2050 aresample_filter_deps="swresample"
2051 ass_filter_deps="libass"
2052 asyncts_filter_deps="avresample"
2053 atempo_filter_deps="avcodec rdft"
2054 blackframe_filter_deps="gpl"
2055 boxblur_filter_deps="gpl"
2056 colormatrix_filter_deps="gpl"
2057 cropdetect_filter_deps="gpl"
2058 decimate_filter_deps="gpl avcodec"
2059 delogo_filter_deps="gpl"
2060 deshake_filter_deps="avcodec"
2061 drawtext_filter_deps="libfreetype"
2062 ebur128_filter_deps="gpl"
2063 flite_filter_deps="libflite"
2064 frei0r_filter_deps="frei0r dlopen"
2065 frei0r_filter_extralibs='$ldl'
2066 frei0r_src_filter_deps="frei0r dlopen"
2067 frei0r_src_filter_extralibs='$ldl'
2068 geq_filter_deps="gpl"
2069 histeq_filter_deps="gpl"
2070 hqdn3d_filter_deps="gpl"
2071 hue_filter_deps="gpl"
2072 kerndeint_filter_deps="gpl"
2073 movie_filter_deps="avcodec avformat"
2074 mp_filter_deps="gpl avcodec swscale inline_asm"
2075 mptestsrc_filter_deps="gpl"
2076 negate_filter_deps="lut_filter"
2077 noise_filter_deps="gpl"
2078 resample_filter_deps="avresample"
2079 ocv_filter_deps="libopencv"
2080 pan_filter_deps="swresample"
2081 pp_filter_deps="gpl postproc"
2082 removelogo_filter_deps="avcodec avformat swscale"
2083 scale_filter_deps="swscale"
2084 smartblur_filter_deps="gpl swscale"
2085 showspectrum_filter_deps="avcodec rdft"
2086 stereo3d_filter_deps="gpl"
2087 subtitles_filter_deps="avformat avcodec libass"
2088 super2xsai_filter_deps="gpl"
2089 tinterlace_filter_deps="gpl"
2090 yadif_filter_deps="gpl"
2091 pixfmts_super2xsai_test_deps="super2xsai_filter"
2092 tinterlace_merge_test_deps="tinterlace_filter"
2093 tinterlace_pad_test_deps="tinterlace_filter"
2094
2095 # libraries
2096 avcodec_deps="avutil"
2097 avdevice_deps="avutil avcodec avformat"
2098 avfilter_deps="avutil"
2099 avformat_deps="avutil avcodec"
2100 avresample_deps="avutil"
2101 postproc_deps="avutil gpl"
2102 swscale_deps="avutil"
2103
2104 # programs
2105 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2106 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2107                setpts_filter null_filter anull_filter ffabuffersink_filter"
2108 ffplay_deps="avcodec avformat swscale swresample sdl"
2109 ffplay_select="ffbuffersink_filter rdft crop_filter"
2110 ffprobe_deps="avcodec avformat"
2111 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2112 ffserver_extralibs='$ldl'
2113
2114 # documentation
2115 podpages_deps="perl"
2116 manpages_deps="perl pod2man"
2117 htmlpages_deps="texi2html"
2118 txtpages_deps="makeinfo"
2119 doc_deps_any="manpages htmlpages podpages txtpages"
2120
2121 # default parameters
2122
2123 logfile="config.log"
2124
2125 # installation paths
2126 prefix_default="/usr/local"
2127 bindir_default='${prefix}/bin'
2128 datadir_default='${prefix}/share/ffmpeg'
2129 incdir_default='${prefix}/include'
2130 libdir_default='${prefix}/lib'
2131 mandir_default='${prefix}/share/man'
2132 shlibdir_default="$libdir_default"
2133
2134 # toolchain
2135 ar_default="ar"
2136 cc_default="gcc"
2137 cxx_default="g++"
2138 host_cc_default="gcc"
2139 cp_f="cp -f"
2140 install="install"
2141 ln_s="ln -s -f"
2142 nm_default="nm -g"
2143 objformat="elf"
2144 pkg_config_default=pkg-config
2145 ranlib="ranlib"
2146 strip_default="strip"
2147 yasmexe_default="yasm"
2148
2149 nogas=":"
2150
2151 # machine
2152 arch_default=$(uname -m)
2153 cpu="generic"
2154
2155 # OS
2156 target_os_default=$(tolower $(uname -s))
2157 host_os=$target_os_default
2158
2159 # configurable options
2160 enable $PROGRAM_LIST
2161 enable $DOCUMENT_LIST
2162 enable $(filter_out avresample $LIBRARY_LIST)
2163 enable stripping
2164
2165 enable asm
2166 enable debug
2167 enable doc
2168 enable optimizations
2169 enable runtime_cpudetect
2170 enable safe_bitstream_reader
2171 enable static
2172 enable swscale_alpha
2173
2174 # build settings
2175 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2176 FFSERVERLDFLAGS=-Wl,-E
2177 LIBPREF="lib"
2178 LIBSUF=".a"
2179 FULLNAME='$(NAME)$(BUILDSUF)'
2180 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2181 SLIBPREF="lib"
2182 SLIBSUF=".so"
2183 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2184 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2185 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2186 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2187 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2188 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2189
2190 asflags_filter=echo
2191 cflags_filter=echo
2192 ldflags_filter=echo
2193
2194 AS_C='-c'
2195 AS_O='-o $@'
2196 CC_C='-c'
2197 CC_E='-E -o $@'
2198 CC_O='-o $@'
2199 CXX_C='-c'
2200 CXX_O='-o $@'
2201 LD_O='-o $@'
2202 LD_LIB='-l%'
2203 LD_PATH='-L'
2204 HOSTCC_C='-c'
2205 HOSTCC_O='-o $@'
2206 HOSTLD_O='-o $@'
2207
2208 host_cflags='-O3 -g'
2209 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2210 host_libs='-lm'
2211 host_cflags_filter=echo
2212 host_ldflags_filter=echo
2213
2214 target_path='$(CURDIR)'
2215
2216 # since the object filename is not given with the -MM flag, the compiler
2217 # is only able to print the basename, and we must add the path ourselves
2218 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2219 DEPFLAGS='-MM'
2220
2221 # find source path
2222 if test -f configure; then
2223     source_path=.
2224 else
2225     source_path=$(cd $(dirname "$0"); pwd)
2226     echo "$source_path" | grep -q '[[:blank:]]' &&
2227         die "Out of tree builds are impossible with whitespace in source path."
2228     test -e "$source_path/config.h" &&
2229         die "Out of tree builds are impossible with config.h in source dir."
2230 fi
2231
2232 for v in "$@"; do
2233     r=${v#*=}
2234     l=${v%"$r"}
2235     r=$(sh_quote "$r")
2236     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2237 done
2238
2239 find_things(){
2240     thing=$1
2241     pattern=$2
2242     file=$source_path/$3
2243     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2244 }
2245
2246 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2247 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2248 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2249 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2250 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2251 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2252 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2253 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2254 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2255 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2256 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2257
2258 ALL_COMPONENTS="
2259     $BSF_LIST
2260     $DECODER_LIST
2261     $DEMUXER_LIST
2262     $ENCODER_LIST
2263     $FILTER_LIST
2264     $HWACCEL_LIST
2265     $INDEV_LIST
2266     $MUXER_LIST
2267     $OUTDEV_LIST
2268     $PARSER_LIST
2269     $PROTOCOL_LIST
2270 "
2271
2272 for n in $COMPONENT_LIST; do
2273     v=$(toupper ${n%s})_LIST
2274     eval enable \$$v
2275     eval ${n}_if_any="\$$v"
2276 done
2277
2278 enable $ARCH_EXT_LIST
2279
2280 die_unknown(){
2281     echo "Unknown option \"$1\"."
2282     echo "See $0 --help for available options."
2283     exit 1
2284 }
2285
2286 print_3_columns() {
2287     cat | tr ' ' '\n' | sort | pr -r -3 -t
2288 }
2289
2290 show_list() {
2291     suffix=_$1
2292     shift
2293     echo $* | sed s/$suffix//g | print_3_columns
2294     exit 0
2295 }
2296
2297 rand_list(){
2298     IFS=', '
2299     set -- $*
2300     unset IFS
2301     for thing; do
2302         comp=${thing%:*}
2303         prob=${thing#$comp}
2304         prob=${prob#:}
2305         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2306         echo "prob ${prob:-0.5}"
2307         printf '%s\n' $comp
2308     done
2309 }
2310
2311 do_random(){
2312     action=$1
2313     shift
2314     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2315     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2316 }
2317
2318 for opt do
2319     optval="${opt#*=}"
2320     case "$opt" in
2321         --extra-ldflags=*)
2322             add_ldflags $optval
2323         ;;
2324         --extra-libs=*)
2325             add_extralibs $optval
2326         ;;
2327         --disable-devices)
2328             disable $INDEV_LIST $OUTDEV_LIST
2329         ;;
2330         --enable-debug=*)
2331             debuglevel="$optval"
2332         ;;
2333         --disable-programs)
2334             disable $PROGRAM_LIST
2335         ;;
2336         --disable-everything)
2337             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2338         ;;
2339         --disable-all)
2340             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2341             disable $LIBRARY_LIST $PROGRAM_LIST doc
2342         ;;
2343         --enable-random|--disable-random)
2344             action=${opt%%-random}
2345             do_random ${action#--} $COMPONENT_LIST
2346         ;;
2347         --enable-random=*|--disable-random=*)
2348             action=${opt%%-random=*}
2349             do_random ${action#--} $optval
2350         ;;
2351         --enable-*=*|--disable-*=*)
2352             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2353             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2354             eval list=\$$(toupper $thing)_LIST
2355             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2356             list=$(filter "$name" $list)
2357             [ "$list" = "" ] && warn "Option $opt did not match anything"
2358             $action $list
2359         ;;
2360         --enable-?*|--disable-?*)
2361             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2362             if is_in $option $COMPONENT_LIST; then
2363                 test $action = disable && action=unset
2364                 eval $action \$$(toupper ${option%s})_LIST
2365             elif is_in $option $CMDLINE_SELECT; then
2366                 $action $option
2367             else
2368                 die_unknown $opt
2369             fi
2370         ;;
2371         --list-*)
2372             NAME="${opt#--list-}"
2373             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2374             NAME=${NAME%s}
2375             eval show_list $NAME \$$(toupper $NAME)_LIST
2376         ;;
2377         --help|-h) show_help
2378         ;;
2379         --fatal-warnings) enable fatal_warnings
2380         ;;
2381         *)
2382             optname="${opt%%=*}"
2383             optname="${optname#--}"
2384             optname=$(echo "$optname" | sed 's/-/_/g')
2385             if is_in $optname $CMDLINE_SET; then
2386                 eval $optname='$optval'
2387             elif is_in $optname $CMDLINE_APPEND; then
2388                 append $optname "$optval"
2389             else
2390                 die_unknown $opt
2391             fi
2392         ;;
2393     esac
2394 done
2395
2396 disabled logging && logfile=/dev/null
2397
2398 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2399 set >> $logfile
2400
2401 test -n "$cross_prefix" && enable cross_compile
2402
2403 if enabled cross_compile; then
2404     test -n "$arch" && test -n "$target_os" ||
2405         die "Must specify target arch and OS when cross-compiling"
2406 fi
2407
2408 ar_default="${cross_prefix}${ar_default}"
2409 cc_default="${cross_prefix}${cc_default}"
2410 cxx_default="${cross_prefix}${cxx_default}"
2411 nm_default="${cross_prefix}${nm_default}"
2412 pkg_config_default="${cross_prefix}${pkg_config_default}"
2413 ranlib="${cross_prefix}${ranlib}"
2414 strip_default="${cross_prefix}${strip_default}"
2415
2416 sysinclude_default="${sysroot}/usr/include"
2417
2418 case "$toolchain" in
2419     clang-asan)
2420         cc_default="clang"
2421         add_cflags  -faddress-sanitizer
2422         add_ldflags -faddress-sanitizer
2423     ;;
2424     clang-tsan)
2425         cc_default="clang"
2426         add_cflags  -fthread-sanitizer
2427         add_ldflags -fthread-sanitizer
2428     ;;
2429     msvc)
2430         cc_default="c99wrap cl"
2431         ld_default="c99wrap link"
2432         nm_default="dumpbin -symbols"
2433         ar_default="lib"
2434         target_os_default="win32"
2435     ;;
2436     ?*)
2437         die "Unknown toolchain $toolchain"
2438     ;;
2439 esac
2440
2441 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2442 enabled cross_compile || host_cc_default=$cc
2443 set_default host_cc
2444
2445 if ! $pkg_config --version >/dev/null 2>&1; then
2446     warn "$pkg_config not found, library detection may fail."
2447     pkg_config=false
2448 fi
2449
2450 exesuf() {
2451     case $1 in
2452         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2453     esac
2454 }
2455
2456 EXESUF=$(exesuf $target_os)
2457 HOSTEXESUF=$(exesuf $host_os)
2458
2459 # set temporary file name
2460 : ${TMPDIR:=$TEMPDIR}
2461 : ${TMPDIR:=$TMP}
2462 : ${TMPDIR:=/tmp}
2463
2464 if ! check_cmd mktemp -u XXXXXX; then
2465     # simple replacement for missing mktemp
2466     # NOT SAFE FOR GENERAL USE
2467     mktemp(){
2468         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2469     }
2470 fi
2471
2472 tmpfile(){
2473     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2474         (set -C; exec > $tmp) 2>/dev/null ||
2475         die "Unable to create temporary file in $TMPDIR."
2476     append TMPFILES $tmp
2477     eval $1=$tmp
2478 }
2479
2480 trap 'rm -f -- $TMPFILES' EXIT
2481
2482 tmpfile TMPASM .asm
2483 tmpfile TMPC   .c
2484 tmpfile TMPCPP .cpp
2485 tmpfile TMPE   $EXESUF
2486 tmpfile TMPH   .h
2487 tmpfile TMPO   .o
2488 tmpfile TMPS   .S
2489 tmpfile TMPSH  .sh
2490 tmpfile TMPV   .ver
2491
2492 unset -f mktemp
2493
2494 chmod +x $TMPE
2495
2496 # make sure we can execute files in $TMPDIR
2497 cat > $TMPSH 2>> $logfile <<EOF
2498 #! /bin/sh
2499 EOF
2500 chmod +x $TMPSH >> $logfile 2>&1
2501 if ! $TMPSH >> $logfile 2>&1; then
2502     cat <<EOF
2503 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2504 variable to another directory and make sure that it is not mounted noexec.
2505 EOF
2506     die "Sanity test failed."
2507 fi
2508
2509 ccc_flags(){
2510     for flag; do
2511         case $flag in
2512             -std=c99)           echo -c99                       ;;
2513             -mcpu=*)            echo -arch ${flag#*=}           ;;
2514             -mieee)             echo -ieee                      ;;
2515             -O*|-fast)          echo $flag                      ;;
2516             -fno-math-errno)    echo -assume nomath_errno       ;;
2517             -g)                 echo -g3                        ;;
2518             -Wall)              echo -msg_enable level2         ;;
2519             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2520             -Wl,*)              echo $flag                      ;;
2521             -f*|-W*)                                            ;;
2522             *)                  echo $flag                      ;;
2523         esac
2524    done
2525 }
2526
2527 msvc_flags(){
2528     for flag; do
2529         case $flag in
2530             -fomit-frame-pointer) echo -Oy ;;
2531             -g)                   echo -Z7 ;;
2532             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2533                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2534                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2535                                        -wd4554 \
2536                                        -wd4996 -wd4273 ;;
2537             -std=c99)             ;;
2538             -fno-math-errno)      ;;
2539             -fno-common)          ;;
2540             -fno-signed-zeros)    ;;
2541             -fPIC)                ;;
2542             -lz)                  echo zlib.lib ;;
2543             -lavifil32)           echo vfw32.lib ;;
2544             -lavicap32)           echo vfw32.lib user32.lib ;;
2545             -l*)                  echo ${flag#-l}.lib ;;
2546             *)                    echo $flag ;;
2547         esac
2548     done
2549 }
2550
2551 pgi_flags(){
2552     for flag; do
2553         case $flag in
2554             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2555             -fomit-frame-pointer) echo -Mnoframe ;;
2556             -g)                   echo -gopt ;;
2557             *)                    echo $flag ;;
2558         esac
2559     done
2560 }
2561
2562 suncc_flags(){
2563     for flag; do
2564         case $flag in
2565             -march=*|-mcpu=*)
2566                 case "${flag#*=}" in
2567                     native)                   echo -xtarget=native       ;;
2568                     v9|niagara)               echo -xarch=sparc          ;;
2569                     ultrasparc)               echo -xarch=sparcvis       ;;
2570                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2571                     i586|pentium)             echo -xchip=pentium        ;;
2572                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2573                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2574                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2575                     pentium4*)          echo -xtarget=pentium4           ;;
2576                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2577                     *-sse3)             echo -xarch=sse3                 ;;
2578                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2579                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2580                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2581                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2582                     bdver*)                   echo -xarch=avx            ;;
2583                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2584                     k8|opteron|athlon64|athlon-fx)
2585                                               echo -xarch=sse2a          ;;
2586                     athlon*)                  echo -xarch=pentium_proa   ;;
2587                 esac
2588                 ;;
2589             -std=c99)             echo -xc99              ;;
2590             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2591             -fPIC)                echo -KPIC -xcode=pic32 ;;
2592             -W*,*)                echo $flag              ;;
2593             -f*-*|-W*|-mimpure-text)                      ;;
2594             -shared)              echo -G                 ;;
2595             *)                    echo $flag              ;;
2596         esac
2597     done
2598 }
2599
2600 tms470_flags(){
2601     for flag; do
2602         case $flag in
2603             -march=*|-mcpu=*)
2604                 case "${flag#*=}" in
2605                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2606                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2607                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2608                     armv6*|arm11*)          echo -mv=6   ;;
2609                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2610                                             echo -mv=5e  ;;
2611                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2612                 esac
2613                 ;;
2614             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2615             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2616             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2617             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2618             -msoft-float)   echo --float_support=vfplib       ;;
2619             -O[0-3]|-mf=*)  echo $flag                        ;;
2620             -g)             echo -g -mn                       ;;
2621             -pds=*)         echo $flag                        ;;
2622             -D*|-I*)        echo $flag                        ;;
2623             --gcc|--abi=*)  echo $flag                        ;;
2624             -me)            echo $flag                        ;;
2625         esac
2626     done
2627 }
2628
2629 probe_cc(){
2630     pfx=$1
2631     _cc=$2
2632
2633     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2634     unset _ld_o _ldflags _ld_lib _ld_path
2635     unset _depflags _DEPCMD _DEPFLAGS
2636     _flags_filter=echo
2637
2638     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2639         _type=llvm_gcc
2640         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2641         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2642         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2643         _cflags_speed='-O3'
2644         _cflags_size='-Os'
2645     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2646         _type=gcc
2647         gcc_version=$($_cc --version | head -n1)
2648         gcc_basever=$($_cc -dumpversion)
2649         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2650         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2651         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2652         if ! $_cc -dumpversion | grep -q '^2\.'; then
2653             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2654         fi
2655         _cflags_speed='-O3'
2656         _cflags_size='-Os'
2657     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2658         _type=icc
2659         _ident=$($_cc --version | head -n1)
2660         _depflags='-MMD'
2661         _cflags_speed='-O3'
2662         _cflags_size='-Os'
2663         _cflags_noopt='-O1'
2664     elif $_cc -v 2>&1 | grep -q xlc; then
2665         _type=xlc
2666         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2667         _cflags_speed='-O5'
2668         _cflags_size='-O5 -qcompact'
2669     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2670         _type=ccc
2671         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2672         _DEPFLAGS='-M'
2673         _cflags_speed='-fast'
2674         _cflags_size='-O1'
2675         _flags_filter=ccc_flags
2676     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2677         test -d "$sysroot" || die "No valid sysroot specified."
2678         _type=armcc
2679         _ident=$($_cc --vsn | head -n1)
2680         armcc_conf="$PWD/armcc.conf"
2681         $_cc --arm_linux_configure                 \
2682              --arm_linux_config_file="$armcc_conf" \
2683              --configure_sysroot="$sysroot"        \
2684              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2685              die "Error creating armcc configuration file."
2686         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2687         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2688         as_default="${cross_prefix}gcc"
2689         _depflags='-MMD'
2690         _cflags_speed='-O3'
2691         _cflags_size='-Os'
2692     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2693         _type=tms470
2694         _ident=$($_cc -version | head -n1 | tr -s ' ')
2695         _flags='--gcc --abi=eabi -me'
2696         _cc_e='-ppl -fe=$@'
2697         _cc_o='-fe=$@'
2698         _depflags='-ppa -ppd=$(@:.o=.d)'
2699         _cflags_speed='-O3 -mf=5'
2700         _cflags_size='-O3 -mf=2'
2701         _flags_filter=tms470_flags
2702     elif $_cc -v 2>&1 | grep -q clang; then
2703         _type=clang
2704         _ident=$($_cc --version | head -n1)
2705         _depflags='-MMD'
2706         _cflags_speed='-O3'
2707         _cflags_size='-Os'
2708     elif $_cc -V 2>&1 | grep -q Sun; then
2709         _type=suncc
2710         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2711         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2712         _DEPFLAGS='-xM1 -xc99'
2713         _ldflags='-std=c99'
2714         _cflags_speed='-O5'
2715         _cflags_size='-O5 -xspace'
2716         _flags_filter=suncc_flags
2717     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2718         _type=pathscale
2719         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2720         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2721         _cflags_speed='-O2'
2722         _cflags_size='-Os'
2723         _flags_filter='filter_out -Wdisabled-optimization'
2724     elif $_cc -v 2>&1 | grep -q Open64; then
2725         _type=open64
2726         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2727         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2728         _cflags_speed='-O2'
2729         _cflags_size='-Os'
2730         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2731     elif $_cc -V 2>&1 | grep -q Portland; then
2732         _type=pgi
2733         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2734         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2735         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2736         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2737         _cflags_noopt="-O1"
2738         _flags_filter=pgi_flags
2739     elif $_cc 2>&1 | grep -q Microsoft; then
2740         _type=msvc
2741         _ident=$($cc 2>&1 | head -n1)
2742         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2743         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2744         _cflags_speed="-O2"
2745         _cflags_size="-O1"
2746         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2747         if $_cc 2>&1 | grep -q Linker; then
2748             _ld_o='-out $@'
2749         else
2750             _ld_o='-Fe$@'
2751         fi
2752         _cc_o='-Fo $@'
2753         _cc_e='-P -Fi $@'
2754         _flags_filter=msvc_flags
2755         _ld_lib='lib%.a'
2756         _ld_path='-libpath:'
2757         _flags='-nologo'
2758         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2759         if [ $pfx = hostcc ]; then
2760             append _cflags -Dsnprintf=_snprintf
2761         fi
2762         disable stripping
2763     fi
2764
2765     eval ${pfx}_type=\$_type
2766     eval ${pfx}_ident=\$_ident
2767 }
2768
2769 set_ccvars(){
2770     eval ${1}_C=\${_cc_c-\${${1}_C}}
2771     eval ${1}_E=\${_cc_e-\${${1}_E}}
2772     eval ${1}_O=\${_cc_o-\${${1}_O}}
2773
2774     if [ -n "$_depflags" ]; then
2775         eval ${1}_DEPFLAGS=\$_depflags
2776     else
2777         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2778         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2779         eval DEP${1}FLAGS=\$_flags
2780     fi
2781 }
2782
2783 probe_cc cc "$cc"
2784 cflags_filter=$_flags_filter
2785 cflags_speed=$_cflags_speed
2786 cflags_size=$_cflags_size
2787 cflags_noopt=$_cflags_noopt
2788 add_cflags $_flags $_cflags
2789 cc_ldflags=$_ldflags
2790 set_ccvars CC
2791
2792 probe_cc hostcc "$host_cc"
2793 host_cflags_filter=$_flags_filter
2794 add_host_cflags  $_flags $_cflags
2795 set_ccvars HOSTCC
2796
2797 test -n "$cc_type" && enable $cc_type ||
2798     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2799
2800 : ${as_default:=$cc}
2801 : ${dep_cc_default:=$cc}
2802 : ${ld_default:=$cc}
2803 : ${host_ld_default:=$host_cc}
2804 set_default ar as dep_cc ld host_ld
2805
2806 probe_cc as "$as"
2807 asflags_filter=$_flags_filter
2808 add_asflags $_flags $_cflags
2809 set_ccvars AS
2810
2811 probe_cc ld "$ld"
2812 ldflags_filter=$_flags_filter
2813 add_ldflags $_flags $_ldflags
2814 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2815 LD_O=${_ld_o-$LD_O}
2816 LD_LIB=${_ld_lib-$LD_LIB}
2817 LD_PATH=${_ld_path-$LD_PATH}
2818
2819 probe_cc hostld "$host_ld"
2820 host_ldflags_filter=$_flags_filter
2821 add_host_ldflags $_flags $_ldflags
2822 HOSTLD_O=${_ld_o-$HOSTLD_O}
2823
2824 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2825     probe_cc depcc "$dep_cc"
2826     CCDEP=${_DEPCMD:-$DEPCMD}
2827     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2828     DEPCCFLAGS=$_flags
2829 fi
2830
2831 if $ar 2>&1 | grep -q Microsoft; then
2832     arflags="-nologo"
2833     ar_o='-out:$@'
2834 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2835     arflags="rq"
2836     ar_o='$@'
2837 else
2838     arflags="rc"
2839     ar_o='$@'
2840 fi
2841
2842 add_cflags $extra_cflags
2843 add_cxxflags $extra_cxxflags
2844 add_asflags $extra_cflags
2845
2846 if test -n "$sysroot"; then
2847     case "$cc_type" in
2848         gcc|llvm_gcc|clang)
2849             add_cppflags --sysroot="$sysroot"
2850             add_ldflags --sysroot="$sysroot"
2851         ;;
2852         tms470)
2853             add_cppflags -I"$sysinclude"
2854             add_ldflags  --sysroot="$sysroot"
2855         ;;
2856     esac
2857 fi
2858
2859 if test "$cpu" = host; then
2860     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2861
2862     case "$cc_type" in
2863         gcc|llvm_gcc)
2864             check_native(){
2865                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2866                 sed -n "/cc1.*$1=/{
2867                             s/.*$1=\\([^ ]*\\).*/\\1/
2868                             p
2869                             q
2870                         }" $TMPE
2871             }
2872             cpu=$(check_native -march || check_native -mcpu)
2873         ;;
2874     esac
2875
2876     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2877 fi
2878
2879 # Deal with common $arch aliases
2880 case "$arch" in
2881     aarch64|arm64)
2882         arch="aarch64"
2883     ;;
2884     arm*|iPad*)
2885         arch="arm"
2886     ;;
2887     mips*|IP*)
2888         arch="mips"
2889     ;;
2890     parisc*|hppa*)
2891         arch="parisc"
2892     ;;
2893     "Power Macintosh"|ppc*|powerpc*)
2894         arch="ppc"
2895     ;;
2896     s390|s390x)
2897         arch="s390"
2898     ;;
2899     sh4|sh)
2900         arch="sh4"
2901     ;;
2902     sun4u|sparc*)
2903         arch="sparc"
2904     ;;
2905     tilegx|tile-gx)
2906         arch="tilegx"
2907     ;;
2908     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2909         arch="x86"
2910     ;;
2911 esac
2912
2913 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2914 enable $arch
2915
2916 # Add processor-specific flags
2917 if enabled aarch64; then
2918
2919     case $cpu in
2920         armv*)
2921             cpuflags="-march=$cpu"
2922         ;;
2923         *)
2924             cpuflags="-mcpu=$cpu"
2925         ;;
2926     esac
2927
2928 elif enabled alpha; then
2929
2930     cpuflags="-mcpu=$cpu"
2931
2932 elif enabled arm; then
2933
2934     check_arm_arch() {
2935         check_cpp_condition stddef.h \
2936             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2937             $cpuflags
2938     }
2939
2940     probe_arm_arch() {
2941         if   check_arm_arch 4;        then echo armv4;
2942         elif check_arm_arch 4T;       then echo armv4t;
2943         elif check_arm_arch 5;        then echo armv5;
2944         elif check_arm_arch 5E;       then echo armv5e;
2945         elif check_arm_arch 5T;       then echo armv5t;
2946         elif check_arm_arch 5TE;      then echo armv5te;
2947         elif check_arm_arch 5TEJ;     then echo armv5te;
2948         elif check_arm_arch 6;        then echo armv6;
2949         elif check_arm_arch 6J;       then echo armv6j;
2950         elif check_arm_arch 6K;       then echo armv6k;
2951         elif check_arm_arch 6Z;       then echo armv6z;
2952         elif check_arm_arch 6ZK;      then echo armv6zk;
2953         elif check_arm_arch 6T2;      then echo armv6t2;
2954         elif check_arm_arch 7;        then echo armv7;
2955         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2956         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2957         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2958         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2959         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2960         fi
2961     }
2962
2963     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2964
2965     case $cpu in
2966         armv*)
2967             cpuflags="-march=$cpu"
2968             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2969         ;;
2970         *)
2971             cpuflags="-mcpu=$cpu"
2972             case $cpu in
2973                 cortex-a*)                               subarch=armv7a  ;;
2974                 cortex-r*)                               subarch=armv7r  ;;
2975                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2976                 arm11*)                                  subarch=armv6   ;;
2977                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2978                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2979                 *)                             subarch=$(probe_arm_arch) ;;
2980             esac
2981         ;;
2982     esac
2983
2984     case "$subarch" in
2985         armv5t*)    enable fast_clz                ;;
2986         armv[6-8]*) enable fast_clz fast_unaligned ;;
2987     esac
2988
2989 elif enabled avr32; then
2990
2991     case $cpu in
2992         ap7[02]0[0-2])
2993             subarch="avr32_ap"
2994             cpuflags="-mpart=$cpu"
2995         ;;
2996         ap)
2997             subarch="avr32_ap"
2998             cpuflags="-march=$cpu"
2999         ;;
3000         uc3[ab]*)
3001             subarch="avr32_uc"
3002             cpuflags="-mcpu=$cpu"
3003         ;;
3004         uc)
3005             subarch="avr32_uc"
3006             cpuflags="-march=$cpu"
3007         ;;
3008     esac
3009
3010 elif enabled bfin; then
3011
3012     cpuflags="-mcpu=$cpu"
3013
3014 elif enabled mips; then
3015
3016     cpuflags="-march=$cpu"
3017
3018     case $cpu in
3019         24kc)
3020             disable mipsfpu
3021             disable mipsdspr1
3022             disable mipsdspr2
3023         ;;
3024         24kf*)
3025             disable mipsdspr1
3026             disable mipsdspr2
3027         ;;
3028         24kec|34kc|1004kc)
3029             disable mipsfpu
3030             disable mipsdspr2
3031         ;;
3032         24kef*|34kf*|1004kf*)
3033             disable mipsdspr2
3034         ;;
3035         74kc)
3036             disable mipsfpu
3037         ;;
3038     esac
3039
3040 elif enabled ppc; then
3041
3042     case $(tolower $cpu) in
3043         601|ppc601|powerpc601)
3044             cpuflags="-mcpu=601"
3045             disable altivec
3046         ;;
3047         603*|ppc603*|powerpc603*)
3048             cpuflags="-mcpu=603"
3049             disable altivec
3050         ;;
3051         604*|ppc604*|powerpc604*)
3052             cpuflags="-mcpu=604"
3053             disable altivec
3054         ;;
3055         g3|75*|ppc75*|powerpc75*)
3056             cpuflags="-mcpu=750"
3057             disable altivec
3058         ;;
3059         g4|745*|ppc745*|powerpc745*)
3060             cpuflags="-mcpu=7450"
3061         ;;
3062         74*|ppc74*|powerpc74*)
3063             cpuflags="-mcpu=7400"
3064         ;;
3065         g5|970|ppc970|powerpc970)
3066             cpuflags="-mcpu=970"
3067         ;;
3068         power[3-7]*)
3069             cpuflags="-mcpu=$cpu"
3070         ;;
3071         cell)
3072             cpuflags="-mcpu=cell"
3073             enable ldbrx
3074         ;;
3075         e500mc)
3076             cpuflags="-mcpu=e500mc"
3077             disable altivec
3078         ;;
3079         e500v2)
3080             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3081             disable altivec
3082         ;;
3083         e500)
3084             cpuflags="-mcpu=8540 -mhard-float"
3085             disable altivec
3086         ;;
3087     esac
3088
3089 elif enabled sparc; then
3090
3091     case $cpu in
3092         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3093             cpuflags="-mcpu=$cpu"
3094             disable vis
3095         ;;
3096         ultrasparc*|niagara[234])
3097             cpuflags="-mcpu=$cpu"
3098         ;;
3099     esac
3100
3101 elif enabled x86; then
3102
3103     case $cpu in
3104         i[345]86|pentium)
3105             cpuflags="-march=$cpu"
3106             disable mmx
3107         ;;
3108         # targets that do NOT support conditional mov (cmov)
3109         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3110             cpuflags="-march=$cpu"
3111             disable cmov
3112         ;;
3113         # targets that do support conditional mov (cmov)
3114         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3115             cpuflags="-march=$cpu"
3116             enable cmov
3117             enable fast_cmov
3118         ;;
3119         # targets that do support conditional mov but on which it's slow
3120         pentium4|pentium4m|prescott|nocona)
3121             cpuflags="-march=$cpu"
3122             enable cmov
3123             disable fast_cmov
3124         ;;
3125     esac
3126
3127 fi
3128
3129 if [ "$cpu" != generic ]; then
3130     add_cflags  $cpuflags
3131     add_asflags $cpuflags
3132 fi
3133
3134 # compiler sanity check
3135 check_exec <<EOF
3136 int main(void){ return 0; }
3137 EOF
3138 if test "$?" != 0; then
3139     echo "$cc is unable to create an executable file."
3140     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3141         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3142         echo "Only do this if you know what cross compiling means."
3143     fi
3144     die "C compiler test failed."
3145 fi
3146
3147 add_cppflags -D_ISOC99_SOURCE
3148 add_cxxflags -D__STDC_CONSTANT_MACROS
3149 check_cflags -std=c99
3150 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3151 #include <stdlib.h>
3152 EOF
3153 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3154 #include <stdlib.h>
3155 EOF
3156
3157 check_host_cflags -std=c99
3158 check_host_cflags -Wall
3159
3160 check_64bit(){
3161     arch32=$1
3162     arch64=$2
3163     expr=$3
3164     check_code cc "" "int test[2*($expr) - 1]" &&
3165         subarch=$arch64 || subarch=$arch32
3166 }
3167
3168 case "$arch" in
3169     aarch64|alpha|ia64)
3170         spic=$shared
3171     ;;
3172     mips)
3173         check_64bit mips mips64 '_MIPS_SIM > 1'
3174         spic=$shared
3175     ;;
3176     parisc)
3177         check_64bit parisc parisc64 'sizeof(void *) > 4'
3178         spic=$shared
3179     ;;
3180     ppc)
3181         check_64bit ppc ppc64 'sizeof(void *) > 4'
3182         spic=$shared
3183     ;;
3184     sparc)
3185         check_64bit sparc sparc64 'sizeof(void *) > 4'
3186         spic=$shared
3187     ;;
3188     x86)
3189         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3190         if test "$subarch" = "x86_64"; then
3191             spic=$shared
3192         fi
3193     ;;
3194     ppc)
3195         check_cc <<EOF && subarch="ppc64"
3196         int test[(int)sizeof(char*) - 7];
3197 EOF
3198     ;;
3199 esac
3200
3201 enable $subarch
3202 enabled spic && enable pic
3203
3204 # OS specific
3205 case $target_os in
3206     haiku)
3207         prefix_default="/boot/common"
3208         network_extralibs="-lnetwork"
3209         host_libs=
3210         ;;
3211     sunos)
3212         FFSERVERLDFLAGS=""
3213         SHFLAGS='-shared -Wl,-h,$$(@F)'
3214         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3215         network_extralibs="-lsocket -lnsl"
3216         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3217         # When using suncc to build, the Solaris linker will mark
3218         # an executable with each instruction set encountered by
3219         # the Solaris assembler.  As our libraries contain their own
3220         # guards for processor-specific code, instead suppress
3221         # generation of the HWCAPS ELF section on Solaris x86 only.
3222         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3223         nm_default='nm -P -g'
3224         ;;
3225     netbsd)
3226         disable symver
3227         oss_indev_extralibs="-lossaudio"
3228         oss_outdev_extralibs="-lossaudio"
3229         enabled gcc || check_ldflags -Wl,-zmuldefs
3230         ;;
3231     openbsd|bitrig)
3232         disable symver
3233         SHFLAGS='-shared'
3234         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3235         SLIB_INSTALL_LINKS=
3236         oss_indev_extralibs="-lossaudio"
3237         oss_outdev_extralibs="-lossaudio"
3238         ;;
3239     dragonfly)
3240         disable symver
3241         ;;
3242     freebsd)
3243         ;;
3244     bsd/os)
3245         add_extralibs -lpoll -lgnugetopt
3246         strip="strip -d"
3247         ;;
3248     darwin)
3249         #gas="gas-preprocessor.pl $cc"
3250         enabled ppc && add_asflags -force_cpusubtype_ALL
3251         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3252         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3253         strip="${strip} -x"
3254         add_ldflags -Wl,-dynamic,-search_paths_first
3255         SLIBSUF=".dylib"
3256         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3257         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3258         FFSERVERLDFLAGS=-Wl,-bind_at_load
3259         objformat="macho"
3260         enabled x86_64 && objformat="macho64"
3261         enabled_any pic shared ||
3262             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3263         ;;
3264     mingw32*)
3265         if test $target_os = "mingw32ce"; then
3266             disable network
3267         else
3268             target_os=mingw32
3269         fi
3270         LIBTARGET=i386
3271         if enabled x86_64; then
3272             LIBTARGET="i386:x86-64"
3273         elif enabled arm; then
3274             LIBTARGET=arm-wince
3275         fi
3276         shlibdir_default="$bindir_default"
3277         SLIBPREF=""
3278         SLIBSUF=".dll"
3279         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3280         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3281         dlltool="${cross_prefix}dlltool"
3282         if check_cmd lib.exe -list; then
3283             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3284             if enabled x86_64; then
3285                 LIBTARGET=x64
3286             fi
3287         elif check_cmd $dlltool --version; then
3288             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3289         fi
3290         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3291         SLIB_INSTALL_LINKS=
3292         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3293         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3294         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3295         objformat="win32"
3296         ranlib=:
3297         enable dos_paths
3298         ;;
3299     win32|win64)
3300         if enabled shared; then
3301             # Link to the import library instead of the normal static library
3302             # for shared libs.
3303             LD_LIB='%.lib'
3304             # Cannot build shared and static libraries at the same time with
3305             # MSVC.
3306             disable static
3307         fi
3308         shlibdir_default="$bindir_default"
3309         SLIBPREF=""
3310         SLIBSUF=".dll"
3311         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3312         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3313         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3314         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3315         SLIB_INSTALL_LINKS=
3316         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3317         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3318         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3319         objformat="win32"
3320         ranlib=:
3321         enable dos_paths
3322         ;;
3323     cygwin*)
3324         target_os=cygwin
3325         shlibdir_default="$bindir_default"
3326         SLIBPREF="cyg"
3327         SLIBSUF=".dll"
3328         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3329         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3330         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3331         SLIB_INSTALL_LINKS=
3332         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3333         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3334         objformat="win32"
3335         enable dos_paths
3336         ;;
3337     *-dos|freedos|opendos)
3338         network_extralibs="-lsocket"
3339         objformat="coff"
3340         enable dos_paths
3341         add_cppflags -U__STRICT_ANSI__
3342         ;;
3343     linux)
3344         enable dv1394
3345         ;;
3346     irix*)
3347         target_os=irix
3348         ranlib="echo ignoring ranlib"
3349         ;;
3350     os/2*)
3351         strip="lxlite -CS"
3352         ln_s="cp -f"
3353         objformat="aout"
3354         add_cppflags -D_GNU_SOURCE
3355         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3356         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3357         FFSERVERLDFLAGS=""
3358         LIBSUF="_s.a"
3359         SLIBPREF=""
3360         SLIBSUF=".dll"
3361         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3362         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3363         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3364             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3365             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3366             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3367             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3368             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3369         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3370             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3371         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3372         enable dos_paths
3373         enable_weak os2threads
3374         ;;
3375     gnu/kfreebsd)
3376         add_cppflags -D_BSD_SOURCE
3377         ;;
3378     gnu)
3379         ;;
3380     qnx)
3381         add_cppflags -D_QNX_SOURCE
3382         network_extralibs="-lsocket"
3383         ;;
3384     symbian)
3385         SLIBSUF=".dll"
3386         enable dos_paths
3387         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3388         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3389         add_ldflags -Wl,--target1-abs,--no-undefined \
3390                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3391                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3392         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3393                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3394                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3395         ;;
3396     osf1)
3397         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3398         FFSERVERLDFLAGS=
3399         ;;
3400     minix)
3401         ;;
3402     plan9)
3403         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3404                      -D_REENTRANT_SOURCE        \
3405                      -D_RESEARCH_SOURCE         \
3406                      -DFD_SETSIZE=96            \
3407                      -DHAVE_SOCK_OPTS
3408         add_compat strtod.o strtod=avpriv_strtod
3409         network_extralibs='-lbsd'
3410         exeobjs=compat/plan9/main.o
3411         disable ffserver
3412         cp_f='cp'
3413         ;;
3414     none)
3415         ;;
3416     *)
3417         die "Unknown OS '$target_os'."
3418         ;;
3419 esac
3420
3421 # determine libc flavour
3422
3423 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3424 if check_cpp_condition features.h "defined __UCLIBC__"; then
3425     libc_type=uclibc
3426     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3427 elif check_cpp_condition features.h "defined __GLIBC__"; then
3428     libc_type=glibc
3429     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3430 # MinGW headers can be installed on Cygwin, so check for newlib first.
3431 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3432     libc_type=newlib
3433     add_cppflags -U__STRICT_ANSI__
3434 elif check_header _mingw.h; then
3435     libc_type=mingw
3436     check_cpp_condition _mingw.h \
3437         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3438             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3439         die "ERROR: MinGW runtime version must be >= 3.15."
3440     add_cppflags -U__STRICT_ANSI__
3441     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3442             __MINGW64_VERSION_MAJOR < 3"; then
3443         add_compat msvcrt/snprintf.o
3444         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3445     fi
3446 elif check_func_headers stdlib.h _get_doserrno; then
3447     libc_type=msvcrt
3448     add_compat strtod.o strtod=avpriv_strtod
3449     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3450                                  _snprintf=avpriv_snprintf  \
3451                                  vsnprintf=avpriv_vsnprintf
3452 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3453     libc_type=klibc
3454 fi
3455
3456 test -n "$libc_type" && enable $libc_type
3457
3458 # hacks for compiler/libc/os combinations
3459
3460 if enabled_all tms470 glibc; then
3461     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3462     add_cppflags -D__USER_LABEL_PREFIX__=
3463     add_cppflags -D__builtin_memset=memset
3464     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3465     add_cflags   -pds=48    # incompatible redefinition of macro
3466 fi
3467
3468 if enabled_all ccc glibc; then
3469     add_ldflags -Wl,-z,now  # calls to libots crash without this
3470 fi
3471
3472 esc(){
3473     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3474 }
3475
3476 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3477
3478 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3479
3480 set_default $PATHS_LIST
3481 set_default nm
3482
3483 # we need to build at least one lib type
3484 if ! enabled_any static shared; then
3485     cat <<EOF
3486 At least one library type must be built.
3487 Specify --enable-static to build the static libraries or --enable-shared to
3488 build the shared libraries as well. To only build the shared libraries specify
3489 --disable-static in addition to --enable-shared.
3490 EOF
3491     exit 1;
3492 fi
3493
3494 test -n "$custom_libname_with_major" && SLIBNAME_WITH_MAJOR="$custom_libname_with_major"
3495
3496 die_license_disabled() {
3497     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3498 }
3499
3500 die_license_disabled_gpl() {
3501     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3502 }
3503
3504 die_license_disabled gpl libcdio
3505 die_license_disabled gpl libutvideo
3506 die_license_disabled gpl libx264
3507 die_license_disabled gpl libxavs
3508 die_license_disabled gpl libxvid
3509 die_license_disabled gpl x11grab
3510
3511 die_license_disabled nonfree libaacplus
3512 die_license_disabled nonfree libfaac
3513 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3514 enabled gpl && die_license_disabled_gpl nonfree openssl
3515
3516 die_license_disabled version3 libopencore_amrnb
3517 die_license_disabled version3 libopencore_amrwb
3518 die_license_disabled version3 libvo_aacenc
3519 die_license_disabled version3 libvo_amrwbenc
3520
3521 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3522
3523 disabled optimizations || check_cflags -fomit-frame-pointer
3524
3525 enable_pic() {
3526     enable pic
3527     add_cppflags -DPIC
3528     add_cflags   -fPIC
3529     add_asflags  -fPIC
3530 }
3531
3532 enabled pic && enable_pic
3533
3534 check_cc <<EOF || die "Symbol mangling check failed."
3535 int ff_extern;
3536 EOF
3537 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3538 extern_prefix=${sym%%ff_extern*}
3539
3540 check_cc <<EOF && enable_weak inline_asm
3541 void foo(void) { __asm__ volatile ("" ::); }
3542 EOF
3543
3544 _restrict=
3545 for restrict_keyword in restrict __restrict__ __restrict; do
3546     check_cc <<EOF && _restrict=$restrict_keyword && break
3547 void foo(char * $restrict_keyword p);
3548 EOF
3549 done
3550
3551 check_cc <<EOF && enable attribute_packed
3552 struct { int x; } __attribute__((packed)) x;
3553 EOF
3554
3555 check_cc <<EOF && enable attribute_may_alias
3556 union { int x; } __attribute__((may_alias)) x;
3557 EOF
3558
3559 check_cc <<EOF || die "endian test failed"
3560 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3561 EOF
3562 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3563
3564 if enabled alpha; then
3565
3566     check_cflags -mieee
3567
3568 elif enabled arm; then
3569
3570     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3571 float func(float a, float b){ return a+b; }
3572 EOF
3573
3574     enabled thumb && check_cflags -mthumb || check_cflags -marm
3575     nogas=die
3576
3577     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3578         enable vfp_args
3579     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3580         case "${cross_prefix:-$cc}" in
3581             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3582             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3583 __asm__ (".eabi_attribute 28, 1");
3584 int main(void) { return 0; }
3585 EOF
3586         esac
3587         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3588     fi
3589
3590     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3591     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3592     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3593     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3594     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3595     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3596
3597     [ $target_os = linux ] ||
3598         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3599             $ARCH_EXT_LIST_ARM
3600
3601     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3602     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3603
3604     enabled_all armv6t2 shared !pic && enable_pic
3605
3606 elif enabled mips; then
3607
3608     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3609     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3610      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3611     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3612      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3613     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3614      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3615     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3616      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3617
3618 elif enabled parisc; then
3619
3620     if enabled gcc; then
3621         case $($cc -dumpversion) in
3622             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3623         esac
3624     fi
3625
3626 elif enabled ppc; then
3627
3628     enable local_aligned_8 local_aligned_16
3629
3630     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3631     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3632     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3633     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3634
3635     # AltiVec flags: The FSF version of GCC differs from the Apple version
3636     if enabled altivec; then
3637         nogas=warn
3638         check_cflags -maltivec -mabi=altivec &&
3639         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3640         check_cflags -faltivec
3641
3642         # check if our compiler supports Motorola AltiVec C API
3643         check_cc <<EOF || disable altivec
3644 $inc_altivec_h
3645 int main(void) {
3646     vector signed int v1 = (vector signed int) { 0 };
3647     vector signed int v2 = (vector signed int) { 1 };
3648     v1 = vec_add(v1, v2);
3649     return 0;
3650 }
3651 EOF
3652
3653         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3654     fi
3655
3656 elif enabled sparc; then
3657
3658     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3659
3660 elif enabled x86; then
3661
3662     check_builtin rdtsc    intrin.h   "__rdtsc()"
3663     check_builtin mm_empty mmintrin.h "_mm_empty()"
3664
3665     enable local_aligned_8 local_aligned_16
3666
3667     # check whether EBP is available on x86
3668     # As 'i' is stored on the stack, this program will crash
3669     # if the base pointer is used to access it because the
3670     # base pointer is cleared in the inline assembly code.
3671     check_exec_crash <<EOF && enable ebp_available
3672 volatile int i=0;
3673 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3674 return i;
3675 EOF
3676
3677     # check whether EBX is available on x86
3678     check_inline_asm ebx_available '""::"b"(0)' &&
3679         check_inline_asm ebx_available '"":::"%ebx"'
3680
3681     # check whether xmm clobbers are supported
3682     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3683
3684     # check whether binutils is new enough to compile SSSE3/MMXEXT
3685     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3686     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3687
3688     if ! disabled_any asm mmx yasm; then
3689         if check_cmd $yasmexe --version; then
3690             enabled x86_64 && yasm_extra="-m amd64"
3691             yasm_debug="-g dwarf2"
3692         elif check_cmd nasm -v; then
3693             yasmexe=nasm
3694             yasm_debug="-g -F dwarf"
3695             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3696         fi
3697
3698         YASMFLAGS="-f $objformat $yasm_extra"
3699         enabled pic               && append YASMFLAGS "-DPIC"
3700         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3701         case "$objformat" in
3702             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3703         esac
3704
3705         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3706             die "yasm not found, use --disable-yasm for a crippled build"
3707         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3708         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3709         check_yasm "CPU amdnop" && enable cpunop
3710     fi
3711
3712     case "$cpu" in
3713         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3714             disable fast_clz
3715         ;;
3716     esac
3717
3718 fi
3719
3720 if enabled asm; then
3721     as=${gas:=$as}
3722     check_as <<EOF && enable gnu_as || \
3723         $nogas "GNU assembler not found, install gas-preprocessor"
3724 .macro m n
3725 \n: .int 0
3726 .endm
3727 m x
3728 EOF
3729 fi
3730
3731 check_ldflags -Wl,--as-needed
3732
3733 if check_func dlopen; then
3734     ldl=
3735 elif check_func dlopen -ldl; then
3736     ldl=-ldl
3737 fi
3738
3739 if ! disabled network; then
3740     check_type "sys/types.h sys/socket.h" socklen_t
3741     check_type netdb.h "struct addrinfo"
3742     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3743     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3744     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3745     check_type netinet/in.h "struct sockaddr_in6"
3746     check_type poll.h "struct pollfd"
3747     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3748     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3749     check_type netinet/sctp.h "struct sctp_event_subscribe"
3750     check_func getaddrinfo $network_extralibs
3751     check_func getservbyport $network_extralibs
3752     # Prefer arpa/inet.h over winsock2
3753     if check_header arpa/inet.h ; then
3754         check_func closesocket
3755     elif check_header winsock2.h ; then
3756         check_func_headers winsock2.h closesocket -lws2 &&
3757             network_extralibs="-lws2" ||
3758         { check_func_headers winsock2.h closesocket -lws2_32 &&
3759             network_extralibs="-lws2_32"; }
3760         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3761         check_type ws2tcpip.h socklen_t
3762         check_type ws2tcpip.h "struct addrinfo"
3763         check_type ws2tcpip.h "struct group_source_req"
3764         check_type ws2tcpip.h "struct ip_mreq_source"
3765         check_type ws2tcpip.h "struct ipv6_mreq"
3766         check_type winsock2.h "struct pollfd"
3767         check_type ws2tcpip.h "struct sockaddr_in6"
3768         check_type ws2tcpip.h "struct sockaddr_storage"
3769         check_struct winsock2.h "struct sockaddr" sa_len
3770     else
3771         disable network
3772     fi
3773 fi
3774
3775 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3776 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3777
3778 check_func  access
3779 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3780 check_func  fcntl
3781 check_func  fork
3782 check_func  gethrtime
3783 check_func  getopt
3784 check_func  getrusage
3785 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3786 check_func  gettimeofday
3787 check_func  inet_aton $network_extralibs
3788 check_func  isatty
3789 check_func  localtime_r
3790 check_func  ${malloc_prefix}memalign            && enable memalign
3791 check_func  mkstemp
3792 check_func  mmap
3793 check_func  mprotect
3794 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3795 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3796 check_func  setrlimit
3797 check_func  strerror_r
3798 check_func  sched_getaffinity
3799 check_func  sysconf
3800 check_func  sysctl
3801 check_func  usleep
3802 check_func_headers conio.h kbhit
3803 check_func_headers windows.h PeekNamedPipe
3804 check_func_headers io.h setmode
3805 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3806 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3807 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3808 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3809 check_func_headers windows.h GetProcessAffinityMask
3810 check_func_headers windows.h GetProcessTimes
3811 check_func_headers windows.h GetSystemTimeAsFileTime
3812 check_func_headers windows.h MapViewOfFile
3813 check_func_headers windows.h SetConsoleTextAttribute
3814 check_func_headers windows.h Sleep
3815 check_func_headers windows.h VirtualAlloc
3816 check_func_headers glob.h glob
3817
3818 check_header direct.h
3819 check_header dlfcn.h
3820 check_header dxva.h
3821 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3822 check_header io.h
3823 check_header libcrystalhd/libcrystalhd_if.h
3824 check_header malloc.h
3825 check_header poll.h
3826 check_header sys/mman.h
3827 check_header sys/param.h
3828 check_header sys/resource.h
3829 check_header sys/select.h
3830 check_header sys/time.h
3831 check_header termios.h
3832 check_header unistd.h
3833 check_header vdpau/vdpau.h
3834 check_header vdpau/vdpau_x11.h
3835 check_cpp_condition vdpau/vdpau.h "defined(VDP_DECODER_PROFILE_MPEG4_PART2_SP)" && enable vdpau_mpeg4_support
3836
3837 check_header VideoDecodeAcceleration/VDADecoder.h
3838 check_header windows.h
3839 check_header X11/extensions/XvMClib.h
3840 check_header asm/types.h
3841
3842 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3843 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3844
3845 if ! disabled w32threads && ! enabled pthreads; then
3846     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3847 fi
3848
3849 # check for some common methods of building with pthread support
3850 # do this before the optional library checks as some of them require pthreads
3851 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3852     enable pthreads
3853     if check_func pthread_create; then
3854         :
3855     elif check_func pthread_create -pthread; then
3856         add_cflags -pthread
3857         add_extralibs -pthread
3858     elif check_func pthread_create -pthreads; then
3859         add_cflags -pthreads
3860         add_extralibs -pthreads
3861     elif check_func pthread_create -lpthreadGC2; then
3862         add_extralibs -lpthreadGC2
3863     elif ! check_lib pthread.h pthread_create -lpthread; then
3864         disable pthreads
3865     fi
3866 fi
3867
3868 for thread in $THREADS_LIST; do
3869     if enabled $thread; then
3870         test -n "$thread_type" &&
3871             die "ERROR: Only one thread type must be selected." ||
3872             thread_type="$thread"
3873     fi
3874 done
3875
3876 if enabled pthreads; then
3877   check_func pthread_cancel
3878 fi
3879
3880 check_lib math.h sin -lm && LIBM="-lm"
3881 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3882 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3883
3884 atan2f_args=2
3885 ldexpf_args=2
3886 powf_args=2
3887
3888 for func in $MATH_FUNCS; do
3889     eval check_mathfunc $func \${${func}_args:-1}
3890 done
3891
3892 # these are off by default, so fail if requested and not available
3893 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3894 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3895 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3896 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3897 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3898 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3899 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3900 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3901 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3902                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3903                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3904 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3905 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3906 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3907 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"
3908 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3909 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3910 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3911                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3912                         done || die "ERROR: libgsm not found"; }
3913 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3914 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3915 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3916 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3917 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3918 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3919 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3920 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3921                          check_lib openjpeg.h opj_version -lopenjpeg ||
3922                          die "ERROR: libopenjpeg not found"; }
3923 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3924 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3925 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3926 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3927 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3928 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3929 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3930     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3931     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3932 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3933 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3934                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3935                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3936 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3937 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3938 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3939 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3940 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3941 enabled libvpx     && {
3942     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3943                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3944     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 ||
3945                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3946     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3947     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3948 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3949                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3950                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3951 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3952 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3953 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3954                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3955                         die "ERROR: openal not found"; } &&
3956                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3957                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3958 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3959                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3960                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3961                         die "ERROR: openssl not found"; }
3962
3963 if enabled gnutls; then
3964     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3965     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3966 fi
3967
3968 # libdc1394 check
3969 if enabled libdc1394; then
3970     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3971         enable libdc1394_2; } ||
3972     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3973         enable libdc1394_1; } ||
3974     die "ERROR: No version of libdc1394 found "
3975 fi
3976
3977 SDL_CONFIG="${cross_prefix}sdl-config"
3978 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3979     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3980     enable sdl &&
3981     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3982 else
3983   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3984     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3985     sdl_libs=$("${SDL_CONFIG}" --libs)
3986     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3987     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3988     enable sdl &&
3989     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3990   fi
3991 fi
3992 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3993
3994 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3995 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3996 perl --version > /dev/null 2>&1 && enable perl || disable perl
3997 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3998 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3999
4000 check_header linux/fb.h
4001 check_header linux/videodev.h
4002 check_header linux/videodev2.h
4003 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4004
4005 check_header sys/videoio.h
4006
4007 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4008 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4009 # w32api 3.12 had it defined wrong
4010 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4011
4012 check_type "dshow.h" IBaseFilter
4013
4014 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4015 { check_header dev/bktr/ioctl_meteor.h &&
4016   check_header dev/bktr/ioctl_bt848.h; } ||
4017 { check_header machine/ioctl_meteor.h &&
4018   check_header machine/ioctl_bt848.h; } ||
4019 { check_header dev/video/meteor/ioctl_meteor.h &&
4020   check_header dev/video/bktr/ioctl_bt848.h; } ||
4021 check_header dev/ic/bt8xx.h
4022
4023 check_header sndio.h
4024 if check_struct sys/soundcard.h audio_buf_info bytes; then
4025     enable_safe sys/soundcard.h
4026 else
4027     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4028     #include <sys/soundcard.h>
4029     audio_buf_info abc;
4030 EOF
4031 fi
4032 check_header soundcard.h
4033
4034 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4035
4036 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4037     check_func jack_port_get_latency_range -ljack
4038
4039 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4040
4041 if enabled libcdio; then
4042     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
4043 fi
4044
4045 enabled x11grab                                           &&
4046 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4047 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4048 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4049
4050 if ! disabled vaapi; then
4051     check_lib va/va.h vaInitialize -lva && {
4052         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4053         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4054     } || disable vaapi
4055 fi
4056
4057 enabled vdpau &&
4058     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4059     disable vdpau
4060
4061 # Funny iconv installations are not unusual, so check it after all flags have been set
4062 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4063
4064 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4065 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4066 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"
4067
4068 # add some useful compiler flags if supported
4069 check_cflags -Wdeclaration-after-statement
4070 check_cflags -Wall
4071 check_cflags -Wno-parentheses
4072 check_cflags -Wno-switch
4073 check_cflags -Wno-format-zero-length
4074 check_cflags -Wdisabled-optimization
4075 check_cflags -Wpointer-arith
4076 check_cflags -Wredundant-decls
4077 check_cflags -Wno-pointer-sign
4078 check_cflags -Wwrite-strings
4079 check_cflags -Wtype-limits
4080 check_cflags -Wundef
4081 check_cflags -Wmissing-prototypes
4082 check_cflags -Wno-pointer-to-int-cast
4083 check_cflags -Wstrict-prototypes
4084 enabled extra_warnings && check_cflags -Winline
4085
4086 # add some linker flags
4087 check_ldflags -Wl,--warn-common
4088 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4089 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4090
4091 enabled xmm_clobber_test &&
4092     check_ldflags -Wl,--wrap,avcodec_open2              \
4093                   -Wl,--wrap,avcodec_decode_audio4      \
4094                   -Wl,--wrap,avcodec_decode_video2      \
4095                   -Wl,--wrap,avcodec_decode_subtitle2   \
4096                   -Wl,--wrap,avcodec_encode_audio2      \
4097                   -Wl,--wrap,avcodec_encode_video       \
4098                   -Wl,--wrap,avcodec_encode_subtitle    \
4099                   -Wl,--wrap,sws_scale ||
4100     disable xmm_clobber_test
4101
4102 echo "X{};" > $TMPV
4103 if test_ldflags -Wl,--version-script,$TMPV; then
4104     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4105     check_cc <<EOF && enable symver_asm_label
4106 void ff_foo(void) __asm__ ("av_foo@VERSION");
4107 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4108 EOF
4109     check_cc <<EOF && enable symver_gnu_asm
4110 __asm__(".symver ff_foo,av_foo@VERSION");
4111 void ff_foo(void) {}
4112 EOF
4113 fi
4114
4115 if [ -z "$optflags" ]; then
4116     if enabled small; then
4117         optflags=$cflags_size
4118     elif enabled optimizations; then
4119         optflags=$cflags_speed
4120     else
4121         optflags=$cflags_noopt
4122     fi
4123 fi
4124
4125 check_optflags(){
4126     check_cflags "$@"
4127     enabled lto && check_ldflags "$@"
4128 }
4129
4130
4131 if enabled lto; then
4132     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4133     check_cflags  -flto
4134     check_ldflags -flto $cpuflags
4135 fi
4136
4137 check_optflags $optflags
4138 check_optflags -fno-math-errno
4139 check_optflags -fno-signed-zeros
4140
4141 enabled ftrapv && check_cflags -ftrapv
4142
4143 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4144 int x;
4145 EOF
4146
4147
4148 if enabled icc; then
4149     # Just warnings, no remarks
4150     check_cflags -w1
4151     # -wd: Disable following warnings
4152     # 144, 167, 556: -Wno-pointer-sign
4153     # 188: enumerated type mixed with another type
4154     # 1292: attribute "foo" ignored
4155     # 1419: external declaration in primary source file
4156     # 10006: ignoring unknown option -fno-signed-zeros
4157     # 10148: ignoring unknown option -Wno-parentheses
4158     # 10156: ignoring option '-W'; no argument required
4159     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4160     # 11030: Warning unknown option --as-needed
4161     # 10156: ignoring option '-export'; no argument required
4162     check_ldflags -wd10156,11030
4163     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4164     enable ebp_available
4165     if enabled x86_32; then
4166         icc_version=$($cc -dumpversion)
4167         test ${icc_version%%.*} -ge 11 &&
4168             check_cflags -falign-stack=maintain-16-byte ||
4169             disable aligned_stack
4170     fi
4171 elif enabled ccc; then
4172     # disable some annoying warnings
4173     add_cflags -msg_disable bitnotint
4174     add_cflags -msg_disable mixfuncvoid
4175     add_cflags -msg_disable nonstandcast
4176     add_cflags -msg_disable unsupieee
4177 elif enabled gcc; then
4178     check_optflags -fno-tree-vectorize
4179     check_cflags -Werror=implicit-function-declaration
4180     check_cflags -Werror=missing-prototypes
4181     check_cflags -Werror=return-type
4182     check_cflags -Werror=vla
4183 elif enabled llvm_gcc; then
4184     check_cflags -mllvm -stack-alignment=16
4185 elif enabled clang; then
4186     check_cflags -mllvm -stack-alignment=16
4187     check_cflags -Qunused-arguments
4188     check_cflags -Werror=implicit-function-declaration
4189     check_cflags -Werror=missing-prototypes
4190     check_cflags -Werror=return-type
4191 elif enabled armcc; then
4192     # 2523: use of inline assembler is deprecated
4193     add_cflags -W${armcc_opt},--diag_suppress=2523
4194     add_cflags -W${armcc_opt},--diag_suppress=1207
4195     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4196     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4197     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4198     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4199 elif enabled tms470; then
4200     add_cflags -pds=824 -pds=837
4201 elif enabled pathscale; then
4202     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4203 elif enabled msvc; then
4204     enabled x86_32 && disable aligned_stack
4205 fi
4206
4207 case $target_os in
4208     osf1)
4209         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4210     ;;
4211     plan9)
4212         add_cppflags -Dmain=plan9_main
4213     ;;
4214 esac
4215
4216 enabled_any $THREADS_LIST      && enable threads
4217
4218 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4219
4220 check_deps $CONFIG_LIST       \
4221            $CONFIG_EXTRA      \
4222            $HAVE_LIST         \
4223            $ALL_COMPONENTS    \
4224
4225
4226 if test $target_os = "haiku"; then
4227     disable memalign
4228     disable posix_memalign
4229 fi
4230
4231 ! enabled_any memalign posix_memalign aligned_malloc &&
4232     enabled_any $need_memalign && enable memalign_hack
4233
4234 # add_dep lib dep
4235 # -> enable ${lib}_deps_${dep}
4236 # -> add $dep to ${lib}_deps only once
4237 add_dep() {
4238     lib=$1
4239     dep=$2
4240     enabled "${lib}_deps_${dep}" && return 0
4241     enable  "${lib}_deps_${dep}"
4242     prepend "${lib}_deps" $dep
4243 }
4244
4245 # merge deps lib components
4246 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4247 merge_deps() {
4248     lib=$1
4249     shift
4250     for comp in $*; do
4251         enabled $comp || continue
4252         eval "dep=\"\$${comp}_deps\""
4253         for d in $dep; do
4254             add_dep $lib $d
4255         done
4256     done
4257 }
4258
4259 merge_deps libavfilter $FILTER_LIST
4260
4261 echo "install prefix            $prefix"
4262 echo "source path               $source_path"
4263 echo "C compiler                $cc"
4264 echo "ARCH                      $arch ($cpu)"
4265 if test "$build_suffix" != ""; then
4266     echo "build suffix              $build_suffix"
4267 fi
4268 if test "$progs_suffix" != ""; then
4269     echo "progs suffix              $progs_suffix"
4270 fi
4271 if test "$extra_version" != ""; then
4272     echo "version string suffix     $extra_version"
4273 fi
4274 echo "big-endian                ${bigendian-no}"
4275 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4276 if enabled x86; then
4277     echo "${yasmexe}                      ${yasm-no}"
4278     echo "MMX enabled               ${mmx-no}"
4279     echo "MMXEXT enabled            ${mmxext-no}"
4280     echo "3DNow! enabled            ${amd3dnow-no}"
4281     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4282     echo "SSE enabled               ${sse-no}"
4283     echo "SSSE3 enabled             ${ssse3-no}"
4284     echo "AVX enabled               ${avx-no}"
4285     echo "FMA4 enabled              ${fma4-no}"
4286     echo "CMOV enabled              ${cmov-no}"
4287     echo "CMOV is fast              ${fast_cmov-no}"
4288     echo "EBX available             ${ebx_available-no}"
4289     echo "EBP available             ${ebp_available-no}"
4290 fi
4291 if enabled arm; then
4292     echo "ARMv5TE enabled           ${armv5te-no}"
4293     echo "ARMv6 enabled             ${armv6-no}"
4294     echo "ARMv6T2 enabled           ${armv6t2-no}"
4295     echo "VFP enabled               ${vfp-no}"
4296     echo "NEON enabled              ${neon-no}"
4297     echo "THUMB enabled             ${thumb-no}"
4298 fi
4299 if enabled mips; then
4300     echo "MIPS FPU enabled          ${mipsfpu-no}"
4301     echo "MIPS32R2 enabled          ${mips32r2-no}"
4302     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4303     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4304 fi
4305 if enabled ppc; then
4306     echo "AltiVec enabled           ${altivec-no}"
4307     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4308     echo "dcbzl available           ${dcbzl-no}"
4309 fi
4310 if enabled sparc; then
4311     echo "VIS enabled               ${vis-no}"
4312 fi
4313 echo "debug symbols             ${debug-no}"
4314 echo "strip symbols             ${stripping-no}"
4315 echo "optimize for size         ${small-no}"
4316 echo "optimizations             ${optimizations-no}"
4317 echo "static                    ${static-no}"
4318 echo "shared                    ${shared-no}"
4319 echo "postprocessing support    ${postproc-no}"
4320 echo "new filter support        ${avfilter-no}"
4321 echo "network support           ${network-no}"
4322 echo "threading support         ${thread_type-no}"
4323 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4324 echo "SDL support               ${sdl-no}"
4325 echo "texi2html enabled         ${texi2html-no}"
4326 echo "perl enabled              ${perl-no}"
4327 echo "pod2man enabled           ${pod2man-no}"
4328 echo "makeinfo enabled          ${makeinfo-no}"
4329 test -n "$random_seed" &&
4330     echo "random seed               ${random_seed}"
4331 echo
4332
4333 echo "External libraries:"
4334 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4335 echo
4336
4337 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4338     echo "Enabled ${type}s:"
4339     eval list=\$$(toupper $type)_LIST
4340     print_enabled '_*' $list | print_3_columns
4341     echo
4342 done
4343
4344 license="LGPL version 2.1 or later"
4345 if enabled nonfree; then
4346     license="nonfree and unredistributable"
4347 elif enabled gplv3; then
4348     license="GPL version 3 or later"
4349 elif enabled lgplv3; then
4350     license="LGPL version 3 or later"
4351 elif enabled gpl; then
4352     license="GPL version 2 or later"
4353 fi
4354
4355 echo "License: $license"
4356
4357 echo "Creating config.mak and config.h..."
4358
4359 test -e Makefile || $ln_s "$source_path/Makefile" .
4360
4361 enabled stripping || strip="echo skipping strip"
4362
4363 config_files="$TMPH config.mak"
4364
4365 cat > config.mak <<EOF
4366 # Automatically generated by configure - do not modify!
4367 ifndef FFMPEG_CONFIG_MAK
4368 FFMPEG_CONFIG_MAK=1
4369 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4370 prefix=$prefix
4371 LIBDIR=\$(DESTDIR)$libdir
4372 SHLIBDIR=\$(DESTDIR)$shlibdir
4373 INCDIR=\$(DESTDIR)$incdir
4374 BINDIR=\$(DESTDIR)$bindir
4375 DATADIR=\$(DESTDIR)$datadir
4376 MANDIR=\$(DESTDIR)$mandir
4377 SRC_PATH=$source_path
4378 ifndef MAIN_MAKEFILE
4379 SRC_PATH:=\$(SRC_PATH:.%=..%)
4380 endif
4381 CC_IDENT=$cc_ident
4382 ARCH=$arch
4383 CC=$cc
4384 CXX=$cxx
4385 AS=$as
4386 LD=$ld
4387 DEPCC=$dep_cc
4388 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4389 DEPAS=$as
4390 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4391 YASM=$yasmexe
4392 DEPYASM=$yasmexe
4393 AR=$ar
4394 ARFLAGS=$arflags
4395 AR_O=$ar_o
4396 RANLIB=$ranlib
4397 CP=cp -p
4398 LN_S=$ln_s
4399 STRIP=$strip
4400 CPPFLAGS=$CPPFLAGS
4401 CFLAGS=$CFLAGS
4402 CXXFLAGS=$CXXFLAGS
4403 ASFLAGS=$ASFLAGS
4404 AS_C=$AS_C
4405 AS_O=$AS_O
4406 CC_C=$CC_C
4407 CC_E=$CC_E
4408 CC_O=$CC_O
4409 CXX_C=$CXX_C
4410 CXX_O=$CXX_O
4411 LD_O=$LD_O
4412 LD_LIB=$LD_LIB
4413 LD_PATH=$LD_PATH
4414 DLLTOOL=$dlltool
4415 LDFLAGS=$LDFLAGS
4416 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4417 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4418 YASMFLAGS=$YASMFLAGS
4419 BUILDSUF=$build_suffix
4420 PROGSSUF=$progs_suffix
4421 FULLNAME=$FULLNAME
4422 LIBPREF=$LIBPREF
4423 LIBSUF=$LIBSUF
4424 LIBNAME=$LIBNAME
4425 SLIBPREF=$SLIBPREF
4426 SLIBSUF=$SLIBSUF
4427 EXESUF=$EXESUF
4428 EXTRA_VERSION=$extra_version
4429 CCDEP=$CCDEP
4430 CXXDEP=$CXXDEP
4431 CCDEP_FLAGS=$CCDEP_FLAGS
4432 ASDEP=$ASDEP
4433 ASDEP_FLAGS=$ASDEP_FLAGS
4434 CC_DEPFLAGS=$CC_DEPFLAGS
4435 AS_DEPFLAGS=$AS_DEPFLAGS
4436 HOSTCC=$host_cc
4437 HOSTLD=$host_ld
4438 HOSTCFLAGS=$host_cflags
4439 HOSTCPPFLAGS=$host_cppflags
4440 HOSTEXESUF=$HOSTEXESUF
4441 HOSTLDFLAGS=$host_ldflags
4442 HOSTLIBS=$host_libs
4443 DEPHOSTCC=$host_cc
4444 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4445 HOSTCCDEP=$HOSTCCDEP
4446 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4447 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4448 HOSTCC_C=$HOSTCC_C
4449 HOSTCC_O=$HOSTCC_O
4450 HOSTLD_O=$HOSTLD_O
4451 TARGET_EXEC=$target_exec
4452 TARGET_PATH=$target_path
4453 LIBS-ffplay=$sdl_libs
4454 CFLAGS-ffplay=$sdl_cflags
4455 ZLIB=$($ldflags_filter -lz)
4456 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4457 EXTRALIBS=$extralibs
4458 COMPAT_OBJS=$compat_objs
4459 EXEOBJS=$exeobjs
4460 INSTALL=$install
4461 LIBTARGET=${LIBTARGET}
4462 SLIBNAME=${SLIBNAME}
4463 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4464 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4465 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4466 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4467 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4468 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4469 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4470 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4471 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4472 NOREDZONE_FLAGS=$noredzone_flags
4473 EOF
4474
4475 get_version(){
4476     lcname=lib${1}
4477     name=$(toupper $lcname)
4478     file=$source_path/$lcname/version.h
4479     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4480     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4481     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4482     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4483     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4484 }
4485
4486 map 'get_version $v' $LIBRARY_LIST
4487
4488 cat > $TMPH <<EOF
4489 /* Automatically generated by configure - do not modify! */
4490 #ifndef FFMPEG_CONFIG_H
4491 #define FFMPEG_CONFIG_H
4492 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4493 #define FFMPEG_LICENSE "$(c_escape $license)"
4494 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4495 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4496 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4497 #define av_restrict $_restrict
4498 #define EXTERN_PREFIX "${extern_prefix}"
4499 #define EXTERN_ASM ${extern_prefix}
4500 #define SLIBSUF "$SLIBSUF"
4501 #define HAVE_MMX2 HAVE_MMXEXT
4502 EOF
4503
4504 test -n "$assert_level" &&
4505     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4506
4507 test -n "$malloc_prefix" &&
4508     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4509
4510 if enabled yasm; then
4511     append config_files $TMPASM
4512     printf '' >$TMPASM
4513 fi
4514
4515 print_config ARCH_   "$config_files" $ARCH_LIST
4516 print_config HAVE_   "$config_files" $HAVE_LIST
4517 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4518                                      $CONFIG_EXTRA      \
4519                                      $ALL_COMPONENTS    \
4520
4521 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4522 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4523
4524 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4525 cp_if_changed $TMPH config.h
4526 touch .config
4527
4528 enabled yasm && cp_if_changed $TMPASM config.asm
4529
4530 cat > $TMPH <<EOF
4531 /* Generated by ffconf */
4532 #ifndef AVUTIL_AVCONFIG_H
4533 #define AVUTIL_AVCONFIG_H
4534 EOF
4535
4536 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4537
4538 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4539
4540 cp_if_changed $TMPH libavutil/avconfig.h
4541
4542 if test -n "$WARNINGS"; then
4543     printf "\n$WARNINGS"
4544     enabled fatal_warnings && exit 1
4545 fi
4546
4547 # build pkg-config files
4548
4549 pkgconfig_generate(){
4550     name=$1
4551     shortname=${name#lib}${build_suffix}
4552     comment=$2
4553     version=$3
4554     libs=$4
4555     requires=$5
4556     enabled ${name#lib} || return 0
4557     mkdir -p $name
4558     cat <<EOF > $name/$name${build_suffix}.pc
4559 prefix=$prefix
4560 exec_prefix=\${prefix}
4561 libdir=$libdir
4562 includedir=$incdir
4563
4564 Name: $name
4565 Description: $comment
4566 Version: $version
4567 Requires: $(enabled shared || echo $requires)
4568 Requires.private: $(enabled shared && echo $requires)
4569 Conflicts:
4570 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4571 Libs.private: $(enabled shared && echo $libs)
4572 Cflags: -I\${includedir}
4573 EOF
4574
4575 mkdir -p doc/examples/pc-uninstalled
4576 includedir=${source_path}
4577 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4578     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4579 prefix=
4580 exec_prefix=
4581 libdir=\${pcfiledir}/../../../$name
4582 includedir=${includedir}
4583
4584 Name: $name
4585 Description: $comment
4586 Version: $version
4587 Requires: $requires
4588 Conflicts:
4589 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4590 Cflags: -I\${includedir}
4591 EOF
4592 }
4593
4594 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4595 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4596 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4597 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4598 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4599 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4600 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4601 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4602
4603 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4604 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4605
4606 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4607 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4608 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4609 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4610 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4611 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4612 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4613 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4614 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4615
4616 fix_ffmpeg_remote(){
4617     git_remote_from=$1
4618     git_remote_to=$2
4619     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4620     if [ "$fixme_remote" != "" ]; then
4621         echolog "
4622 Outdated domain in git config, the official domain for ffmpeg git is since
4623 November 2011, source.ffmpeg.org, both the old and the new point to the same
4624 repository and server. To update it enter the following commands:
4625 "
4626         for remote in $fixme_remote; do
4627             echolog "git remote set-url $remote $git_remote_to"
4628         done
4629     fi
4630 }
4631
4632 if test -f "$source_path/.git/config"; then
4633     remote_from=git.videolan.org
4634     remote_to=source.ffmpeg.org
4635     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4636     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4637 fi