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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-ffmpeg         disable ffmpeg build
 109   --disable-ffplay         disable ffplay build
 110   --disable-ffprobe        disable ffprobe build
 111   --disable-ffserver       disable ffserver build
 112
 113 Documentation options:
 114   --disable-doc            do not build documentation
 115   --disable-htmlpages      do not build HTML documentation pages
 116   --disable-manpages       do not build man documentation pages
 117   --disable-podpages       do not build POD documentation pages
 118   --disable-txtpages       do not build text documentation pages
 119
 120 Component options:
 121   --disable-avdevice       disable libavdevice build
 122   --disable-avcodec        disable libavcodec build
 123   --disable-avformat       disable libavformat build
 124   --disable-avutil         disable libavutil build
 125   --disable-swresample     disable libswresample build
 126   --disable-swscale        disable libswscale build
 127   --disable-postproc       disable libpostproc build
 128   --disable-avfilter       disable libavfilter build
 129   --enable-avresample      enable libavresample build [no]
 130   --disable-pthreads       disable pthreads [auto]
 131   --disable-w32threads     disable Win32 threads [auto]
 132   --disable-os2threads     disable OS/2 threads [auto]
 133   --disable-network        disable network support [no]
 134   --disable-dct            disable DCT code
 135   --disable-dwt            disable DWT code
 136   --disable-error-resilience disable error resilience code
 137   --disable-lsp            disable LSP code
 138   --disable-lzo            disable LZO decoder code
 139   --disable-mdct           disable MDCT code
 140   --disable-rdft           disable RDFT code
 141   --disable-fft            disable FFT code
 142
 143 Hardware accelerators:
 144   --enable-dxva2           enable DXVA2 code
 145   --enable-vaapi           enable VAAPI code
 146   --enable-vda             enable VDA code
 147   --enable-vdpau           enable VDPAU code
 148
 149 Individual component options:
 150   --disable-everything     disable all components listed below
 151   --disable-encoder=NAME   disable encoder NAME
 152   --enable-encoder=NAME    enable encoder NAME
 153   --disable-encoders       disable all encoders
 154   --disable-decoder=NAME   disable decoder NAME
 155   --enable-decoder=NAME    enable decoder NAME
 156   --disable-decoders       disable all decoders
 157   --disable-hwaccel=NAME   disable hwaccel NAME
 158   --enable-hwaccel=NAME    enable hwaccel NAME
 159   --disable-hwaccels       disable all hwaccels
 160   --disable-muxer=NAME     disable muxer NAME
 161   --enable-muxer=NAME      enable muxer NAME
 162   --disable-muxers         disable all muxers
 163   --disable-demuxer=NAME   disable demuxer NAME
 164   --enable-demuxer=NAME    enable demuxer NAME
 165   --disable-demuxers       disable all demuxers
 166   --enable-parser=NAME     enable parser NAME
 167   --disable-parser=NAME    disable parser NAME
 168   --disable-parsers        disable all parsers
 169   --enable-bsf=NAME        enable bitstream filter NAME
 170   --disable-bsf=NAME       disable bitstream filter NAME
 171   --disable-bsfs           disable all bitstream filters
 172   --enable-protocol=NAME   enable protocol NAME
 173   --disable-protocol=NAME  disable protocol NAME
 174   --disable-protocols      disable all protocols
 175   --enable-indev=NAME      enable input device NAME
 176   --disable-indev=NAME     disable input device NAME
 177   --disable-indevs         disable input devices
 178   --enable-outdev=NAME     enable output device NAME
 179   --disable-outdev=NAME    disable output device NAME
 180   --disable-outdevs        disable output devices
 181   --disable-devices        disable all devices
 182   --enable-filter=NAME     enable filter NAME
 183   --disable-filter=NAME    disable filter NAME
 184   --disable-filters        disable all filters
 185
 186 External library support:
 187   --enable-avisynth        enable reading of AVISynth script files [no]
 188   --enable-bzlib           enable bzlib [autodetect]
 189   --enable-fontconfig      enable fontconfig
 190   --enable-frei0r          enable frei0r video filtering
 191   --enable-gnutls          enable gnutls [no]
 192   --enable-iconv           enable iconv [autodetect]
 193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 194   --enable-libass          enable libass subtitles rendering [no]
 195   --enable-libbluray       enable BluRay reading using libbluray [no]
 196   --enable-libcaca         enable textual display using libcaca
 197   --enable-libcelt         enable CELT decoding via libcelt [no]
 198   --enable-libcdio         enable audio CD grabbing with libcdio
 199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 200                            and libraw1394 [no]
 201   --enable-libfaac         enable AAC encoding via libfaac [no]
 202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 204   --enable-libfreetype     enable libfreetype [no]
 205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 208   --enable-libmodplug      enable ModPlug via libmodplug [no]
 209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 210   --enable-libnut          enable NUT (de)muxing via libnut,
 211                            native (de)muxer exists [no]
 212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 214   --enable-libopencv       enable video filtering via libopencv [no]
 215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 216   --enable-libopus         enable Opus decoding via libopus [no]
 217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 218   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 219   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 220   --enable-libsoxr         enable Include libsoxr resampling [no]
 221   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 222   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 223   --enable-libtheora       enable Theora encoding via libtheora [no]
 224   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 225   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 226   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 227   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 228   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 229   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 230                            native implementation exists [no]
 231   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 232   --enable-libx264         enable H.264 encoding via x264 [no]
 233   --enable-libxavs         enable AVS encoding via xavs [no]
 234   --enable-libxvid         enable Xvid encoding via xvidcore,
 235                            native MPEG-4/Xvid encoder exists [no]
 236   --enable-openal          enable OpenAL 1.1 capture support [no]
 237   --enable-openssl         enable openssl [no]
 238   --enable-x11grab         enable X11 grabbing [no]
 239   --enable-zlib            enable zlib [autodetect]
 240
 241 Advanced options (experts only):
 242   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 243   --enable-cross-compile   assume a cross-compiler is used
 244   --sysroot=PATH           root of cross-build tree
 245   --sysinclude=PATH        location of cross-build system headers
 246   --target-os=OS           compiler targets OS [$target_os]
 247   --target-exec=CMD        command to run executables on target
 248   --target-path=DIR        path to view of build directory on target
 249   --toolchain=NAME         set tool defaults according to NAME
 250   --nm=NM                  use nm tool NM [$nm_default]
 251   --ar=AR                  use archive tool AR [$ar_default]
 252   --as=AS                  use assembler AS [$as_default]
 253   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 254   --cc=CC                  use C compiler CC [$cc_default]
 255   --cxx=CXX                use C compiler CXX [$cxx_default]
 256   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 257   --ld=LD                  use linker LD [$ld_default]
 258   --host-cc=HOSTCC         use host C compiler HOSTCC
 259   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 260   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 261   --host-ld=HOSTLD         use host linker HOSTLD
 262   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 263   --host-libs=HLIBS        use libs HLIBS when linking for host
 264   --host-os=OS             compiler host OS [$target_os]
 265   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 266   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 267   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 268   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 269   --extra-version=STRING   version string suffix []
 270   --optflags=OPTFLAGS      override optimization-related compiler flags
 271   --build-suffix=SUFFIX    library name suffix []
 272   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 273   --progs-suffix=SUFFIX    program name suffix []
 274   --arch=ARCH              select architecture [$arch]
 275   --cpu=CPU                select the minimum required CPU (affects
 276                            instruction selection, may crash on older CPUs)
 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     error_resilience
1231     fast_unaligned
1232     fft
1233     ftrapv
1234     gpl
1235     gray
1236     hardcoded_tables
1237     incompatible_fork_abi
1238     lsp
1239     lzo
1240     mdct
1241     memalign_hack
1242     memory_poisoning
1243     network
1244     nonfree
1245     pic
1246     rdft
1247     runtime_cpudetect
1248     safe_bitstream_reader
1249     shared
1250     small
1251     sram
1252     static
1253     swscale_alpha
1254     thumb
1255     version3
1256     xmm_clobber_test
1257 "
1258
1259 THREADS_LIST='
1260     pthreads
1261     w32threads
1262     os2threads
1263 '
1264
1265 ARCH_LIST='
1266     aarch64
1267     alpha
1268     arm
1269     avr32
1270     avr32_ap
1271     avr32_uc
1272     bfin
1273     ia64
1274     m68k
1275     mips
1276     mips64
1277     parisc
1278     ppc
1279     ppc64
1280     s390
1281     sh4
1282     sparc
1283     sparc64
1284     tilegx
1285     tilepro
1286     tomi
1287     x86
1288     x86_32
1289     x86_64
1290 '
1291
1292 ARCH_EXT_LIST_ARM='
1293     armv5te
1294     armv6
1295     armv6t2
1296     neon
1297     vfp
1298     vfpv3
1299 '
1300
1301 ARCH_EXT_LIST_X86='
1302     amd3dnow
1303     amd3dnowext
1304     avx
1305     fma4
1306     mmx
1307     mmxext
1308     sse
1309     sse2
1310     sse3
1311     sse4
1312     sse42
1313     ssse3
1314 '
1315
1316 ARCH_EXT_LIST="
1317     $ARCH_EXT_LIST_ARM
1318     $ARCH_EXT_LIST_X86
1319     altivec
1320     ppc4xx
1321     vis
1322     mipsfpu
1323     mips32r2
1324     mipsdspr1
1325     mipsdspr2
1326 "
1327
1328 HAVE_LIST_CMDLINE='
1329     inline_asm
1330     symver
1331     yasm
1332 '
1333
1334 HAVE_LIST_PUB='
1335     bigendian
1336     fast_unaligned
1337     incompatible_fork_abi
1338 '
1339
1340 MATH_FUNCS="
1341     atanf
1342     atan2f
1343     cbrt
1344     cbrtf
1345     cosf
1346     exp2
1347     exp2f
1348     expf
1349     isinf
1350     isnan
1351     ldexpf
1352     llrint
1353     llrintf
1354     log2
1355     log2f
1356     log10f
1357     lrint
1358     lrintf
1359     powf
1360     rint
1361     round
1362     roundf
1363     sinf
1364     trunc
1365     truncf
1366 "
1367
1368 HAVE_LIST="
1369     $ARCH_EXT_LIST
1370     $(add_suffix _external $ARCH_EXT_LIST)
1371     $(add_suffix _inline   $ARCH_EXT_LIST)
1372     $HAVE_LIST_CMDLINE
1373     $HAVE_LIST_PUB
1374     $THREADS_LIST
1375     $MATH_FUNCS
1376     access
1377     aligned_malloc
1378     aligned_stack
1379     alsa_asoundlib_h
1380     altivec_h
1381     arpa_inet_h
1382     asm_mod_q
1383     asm_mod_y
1384     asm_types_h
1385     attribute_may_alias
1386     attribute_packed
1387     cdio_paranoia_h
1388     cdio_paranoia_paranoia_h
1389     clock_gettime
1390     closesocket
1391     cmov
1392     CommandLineToArgvW
1393     cpunop
1394     CryptGenRandom
1395     dcbzl
1396     dev_bktr_ioctl_bt848_h
1397     dev_bktr_ioctl_meteor_h
1398     dev_ic_bt8xx_h
1399     dev_video_bktr_ioctl_bt848_h
1400     dev_video_meteor_ioctl_meteor_h
1401     direct_h
1402     dlfcn_h
1403     dlopen
1404     dos_paths
1405     dxva_h
1406     ebp_available
1407     ebx_available
1408     fast_64bit
1409     fast_clz
1410     fast_cmov
1411     fcntl
1412     fork
1413     getaddrinfo
1414     gethrtime
1415     getopt
1416     GetProcessAffinityMask
1417     GetProcessMemoryInfo
1418     GetProcessTimes
1419     GetSystemTimeAsFileTime
1420     getrusage
1421     getservbyport
1422     gettimeofday
1423     glob
1424     gnu_as
1425     gsm_h
1426     ibm_asm
1427     inet_aton
1428     io_h
1429     isatty
1430     jack_port_get_latency_range
1431     kbhit
1432     ldbrx
1433     libdc1394_1
1434     libdc1394_2
1435     local_aligned_16
1436     local_aligned_8
1437     localtime_r
1438     loongson
1439     lzo1x_999_compress
1440     machine_ioctl_bt848_h
1441     machine_ioctl_meteor_h
1442     machine_rw_barrier
1443     makeinfo
1444     malloc_h
1445     MapViewOfFile
1446     memalign
1447     MemoryBarrier
1448     mkstemp
1449     mm_empty
1450     mmap
1451     mprotect
1452     msvcrt
1453     nanosleep
1454     openjpeg_1_5_openjpeg_h
1455     PeekNamedPipe
1456     perl
1457     pod2man
1458     poll_h
1459     posix_memalign
1460     pthread_cancel
1461     rdtsc
1462     rsync_contimeout
1463     sched_getaffinity
1464     sdl
1465     SetConsoleTextAttribute
1466     setmode
1467     setrlimit
1468     Sleep
1469     sndio_h
1470     socklen_t
1471     soundcard_h
1472     strerror_r
1473     struct_addrinfo
1474     struct_group_source_req
1475     struct_ip_mreq_source
1476     struct_ipv6_mreq
1477     struct_pollfd
1478     struct_rusage_ru_maxrss
1479     struct_sctp_event_subscribe
1480     struct_sockaddr_in6
1481     struct_sockaddr_sa_len
1482     struct_sockaddr_storage
1483     struct_v4l2_frmivalenum_discrete
1484     symver_asm_label
1485     symver_gnu_asm
1486     sync_val_compare_and_swap
1487     sysconf
1488     sysctl
1489     sys_mman_h
1490     sys_param_h
1491     sys_resource_h
1492     sys_select_h
1493     sys_soundcard_h
1494     sys_time_h
1495     sys_videoio_h
1496     termios_h
1497     texi2html
1498     threads
1499     unistd_h
1500     usleep
1501     vfp_args
1502     VirtualAlloc
1503     windows_h
1504     winsock2_h
1505     xform_asm
1506     xmm_clobbers
1507 "
1508
1509 # options emitted with CONFIG_ prefix but not available on the command line
1510 CONFIG_EXTRA="
1511     aandcttables
1512     ac3dsp
1513     audio_frame_queue
1514     dsputil
1515     frame_thread_encoder
1516     gcrypt
1517     golomb
1518     gplv3
1519     h264chroma
1520     h264dsp
1521     h264pred
1522     h264qpel
1523     hpeldsp
1524     huffman
1525     lgplv3
1526     lpc
1527     mpegaudio
1528     mpegaudiodsp
1529     mpegvideo
1530     mpegvideoenc
1531     nettle
1532     rangecoder
1533     rtpdec
1534     rtpenc_chain
1535     sinewin
1536     videodsp
1537     vp3dsp
1538 "
1539
1540 CMDLINE_SELECT="
1541     $ARCH_EXT_LIST
1542     $CONFIG_LIST
1543     $HAVE_LIST_CMDLINE
1544     $THREADS_LIST
1545     asm
1546     coverage
1547     cross_compile
1548     debug
1549     extra_warnings
1550     logging
1551     lto
1552     optimizations
1553     stripping
1554 "
1555
1556 PATHS_LIST='
1557     bindir
1558     datadir
1559     incdir
1560     libdir
1561     mandir
1562     prefix
1563     shlibdir
1564 '
1565
1566 CMDLINE_SET="
1567     $PATHS_LIST
1568     ar
1569     arch
1570     as
1571     assert_level
1572     build_suffix
1573     cc
1574     cpu
1575     cross_prefix
1576     cxx
1577     dep_cc
1578     extra_version
1579     host_cc
1580     host_cflags
1581     host_ld
1582     host_ldflags
1583     host_libs
1584     host_os
1585     install
1586     ld
1587     logfile
1588     malloc_prefix
1589     nm
1590     optflags
1591     pkg_config
1592     progs_suffix
1593     random_seed
1594     samples
1595     strip
1596     sysinclude
1597     sysroot
1598     target_exec
1599     target_os
1600     target_path
1601     toolchain
1602     valgrind
1603     yasmexe
1604 "
1605
1606 CMDLINE_APPEND="
1607     extra_cflags
1608     extra_cxxflags
1609     host_cppflags
1610 "
1611
1612 # code dependency declarations
1613
1614 # architecture extensions
1615
1616 armv5te_deps="arm"
1617 armv6_deps="arm"
1618 armv6t2_deps="arm"
1619 neon_deps="arm"
1620 vfp_deps="arm"
1621 vfpv3_deps="vfp"
1622
1623 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1624
1625 mipsfpu_deps="mips"
1626 mips32r2_deps="mips"
1627 mipsdspr1_deps="mips"
1628 mipsdspr2_deps="mips"
1629
1630 altivec_deps="ppc"
1631 ppc4xx_deps="ppc"
1632
1633 vis_deps="sparc"
1634
1635 x86_64_suggest="cmov fast_cmov"
1636
1637 amd3dnow_deps="mmx"
1638 amd3dnowext_deps="amd3dnow"
1639 mmx_deps="x86"
1640 mmxext_deps="mmx"
1641 sse_deps="mmxext"
1642 sse2_deps="sse"
1643 sse3_deps="sse2"
1644 ssse3_deps="sse3"
1645 sse4_deps="ssse3"
1646 sse42_deps="sse4"
1647 avx_deps="sse42"
1648 fma4_deps="avx"
1649
1650 mmx_external_deps="yasm"
1651 mmx_inline_deps="inline_asm"
1652 mmx_suggest="mmx_external mmx_inline"
1653
1654 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1655     eval dep=\$${ext}_deps
1656     eval ${ext}_external_deps='"${dep}_external"'
1657     eval ${ext}_inline_deps='"${dep}_inline"'
1658     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1659 done
1660
1661 aligned_stack_if_any="ppc x86"
1662 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1663 fast_clz_if_any="alpha avr32 mips ppc x86"
1664 fast_unaligned_if_any="ppc x86"
1665
1666 inline_asm_deps="!tms470"
1667 need_memalign="altivec neon sse"
1668
1669 symver_if_any="symver_asm_label symver_gnu_asm"
1670
1671 log2_deps="!msvcrt"
1672
1673 # subsystems
1674 dct_select="rdft"
1675 error_resilience_select="dsputil"
1676 frame_thread_encoder_deps="encoders threads"
1677 mdct_select="fft"
1678 rdft_select="fft"
1679 mpegaudio_select="mpegaudiodsp"
1680 mpegaudiodsp_select="dct"
1681 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1682 mpegvideoenc_select="mpegvideo"
1683
1684 # decoders / encoders
1685 aac_decoder_select="mdct sinewin"
1686 aac_encoder_select="audio_frame_queue mdct sinewin"
1687 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1688 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1689 ac3_encoder_select="mdct ac3dsp dsputil"
1690 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1691 alac_encoder_select="lpc"
1692 als_decoder_select="dsputil"
1693 amrnb_decoder_select="lsp"
1694 amrwb_decoder_select="lsp"
1695 amv_encoder_select="aandcttables"
1696 ape_decoder_select="dsputil"
1697 asv_decoder_select="dsputil"
1698 atrac1_decoder_select="mdct sinewin"
1699 atrac3_decoder_select="mdct"
1700 bink_decoder_select="dsputil hpeldsp"
1701 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1702 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1703 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1704 cllc_decoder_select="dsputil"
1705 comfortnoise_encoder_select="lpc"
1706 cook_decoder_select="dsputil mdct sinewin"
1707 cscd_decoder_select="lzo"
1708 cscd_decoder_suggest="zlib"
1709 dca_decoder_select="mdct"
1710 dirac_decoder_select="dsputil dwt golomb videodsp"
1711 dnxhd_decoder_select="dsputil"
1712 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1713 dvvideo_decoder_select="dsputil"
1714 dxa_decoder_select="zlib"
1715 eac3_decoder_select="ac3_decoder"
1716 eac3_encoder_select="ac3_encoder"
1717 eamad_decoder_select="aandcttables dsputil mpegvideo"
1718 eatgq_decoder_select="aandcttables"
1719 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1720 exr_decoder_select="zlib"
1721 ffv1_decoder_select="dsputil golomb rangecoder"
1722 ffv1_encoder_select="rangecoder"
1723 ffvhuff_encoder_select="huffman"
1724 flac_decoder_select="golomb"
1725 flac_encoder_select="dsputil golomb lpc"
1726 flashsv_decoder_select="zlib"
1727 flashsv_encoder_select="zlib"
1728 flashsv2_encoder_select="zlib"
1729 flashsv2_decoder_select="zlib"
1730 flv_decoder_select="h263_decoder"
1731 flv_encoder_select="h263_encoder"
1732 fourxm_decoder_select="dsputil"
1733 fraps_decoder_select="dsputil huffman"
1734 g729_decoder_select="dsputil"
1735 h261_decoder_select="error_resilience mpegvideo"
1736 h261_encoder_select="aandcttables mpegvideoenc"
1737 h263_decoder_select="error_resilience h263_parser mpegvideo"
1738 h263_encoder_select="aandcttables mpegvideoenc"
1739 h263i_decoder_select="h263_decoder"
1740 h263p_encoder_select="h263_encoder"
1741 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1742 h264_decoder_suggest="error_resilience"
1743 huffyuv_decoder_select="dsputil"
1744 huffyuv_encoder_select="huffman"
1745 iac_decoder_select="fft mdct sinewin"
1746 imc_decoder_select="dsputil fft mdct sinewin"
1747 indeo3_decoder_select="hpeldsp"
1748 interplay_video_decoder_select="hpeldsp"
1749 jpegls_decoder_select="golomb"
1750 jpegls_encoder_select="golomb"
1751 jv_decoder_select="dsputil"
1752 lagarith_decoder_select="dsputil"
1753 ljpeg_encoder_select="aandcttables mpegvideoenc"
1754 loco_decoder_select="golomb"
1755 mdec_decoder_select="dsputil error_resilience mpegvideo"
1756 mimic_decoder_select="dsputil hpeldsp"
1757 mjpeg_decoder_select="dsputil hpeldsp"
1758 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1759 mlp_decoder_select="dsputil mlp_parser"
1760 motionpixels_decoder_select="dsputil"
1761 mp1_decoder_select="mpegaudio"
1762 mp1float_decoder_select="mpegaudio"
1763 mp2_decoder_select="mpegaudio"
1764 mp2float_decoder_select="mpegaudio"
1765 mp3_decoder_select="mpegaudio"
1766 mp3adu_decoder_select="mpegaudio"
1767 mp3adufloat_decoder_select="mpegaudio"
1768 mp3float_decoder_select="mpegaudio"
1769 mp3on4_decoder_select="mpegaudio"
1770 mp3on4float_decoder_select="mpegaudio"
1771 mpc7_decoder_select="dsputil mpegaudiodsp"
1772 mpc8_decoder_select="dsputil mpegaudiodsp"
1773 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1774 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1775 mpeg1video_decoder_select="error_resilience mpegvideo"
1776 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1777 mpeg2video_decoder_select="error_resilience mpegvideo"
1778 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1779 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1780 mpeg4_encoder_select="h263_encoder"
1781 msmpeg4v1_decoder_select="h263_decoder"
1782 msmpeg4v2_decoder_select="h263_decoder"
1783 msmpeg4v2_encoder_select="h263_encoder"
1784 msmpeg4v3_decoder_select="h263_decoder"
1785 msmpeg4v3_encoder_select="h263_encoder"
1786 mss2_decoder_select="error_resilience vc1_decoder"
1787 nellymoser_decoder_select="mdct sinewin"
1788 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1789 nuv_decoder_select="dsputil lzo"
1790 png_decoder_select="zlib"
1791 png_encoder_select="dsputil zlib"
1792 prores_decoder_select="dsputil"
1793 qcelp_decoder_select="lsp"
1794 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1795 ra_144_encoder_select="audio_frame_queue lpc"
1796 ralf_decoder_select="golomb"
1797 rtjpeg_decoder_select="dsputil"
1798 rv10_decoder_select="error_resilience h263_decoder"
1799 rv10_encoder_select="h263_encoder"
1800 rv20_decoder_select="error_resilience h263_decoder"
1801 rv20_encoder_select="h263_encoder"
1802 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1803 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1804 shorten_decoder_select="golomb"
1805 sipr_decoder_select="lsp"
1806 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1807 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1808 sonic_decoder_select="golomb"
1809 sonic_encoder_select="golomb"
1810 sonic_ls_encoder_select="golomb"
1811 svq1_decoder_select="hpeldsp"
1812 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1813 svq3_decoder_select="dsputil golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1814 svq3_decoder_suggest="error_resilience zlib"
1815 tak_decoder_select="dsputil"
1816 theora_decoder_select="vp3_decoder"
1817 tiff_decoder_suggest="zlib"
1818 tiff_encoder_suggest="zlib"
1819 truehd_decoder_select="mlp_parser"
1820 truemotion2_decoder_select="dsputil"
1821 tscc_decoder_select="zlib"
1822 twinvq_decoder_select="mdct lsp sinewin"
1823 utvideo_decoder_select="dsputil"
1824 utvideo_encoder_select="huffman"
1825 vble_decoder_select="dsputil"
1826 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1827 vc1image_decoder_select="vc1_decoder"
1828 vorbis_decoder_select="mdct"
1829 vorbis_encoder_select="mdct"
1830 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1831 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1832 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1833 vp6a_decoder_select="vp6_decoder"
1834 vp6f_decoder_select="vp6_decoder"
1835 vp8_decoder_select="h264pred videodsp"
1836 wmapro_decoder_select="mdct sinewin"
1837 wmav1_decoder_select="mdct sinewin"
1838 wmav1_encoder_select="mdct sinewin"
1839 wmav2_decoder_select="mdct sinewin"
1840 wmav2_encoder_select="mdct sinewin"
1841 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1842 wmv1_decoder_select="h263_decoder"
1843 wmv1_encoder_select="h263_encoder"
1844 wmv2_decoder_select="h263_decoder videodsp"
1845 wmv2_encoder_select="h263_encoder"
1846 wmv3_decoder_select="vc1_decoder"
1847 wmv3image_decoder_select="wmv3_decoder"
1848 zerocodec_decoder_select="zlib"
1849 zlib_decoder_select="zlib"
1850 zlib_encoder_select="zlib"
1851 zmbv_decoder_select="zlib"
1852 zmbv_encoder_select="zlib"
1853
1854 # hardware accelerators
1855 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1856 dxva2_deps="dxva2api_h"
1857 vaapi_deps="va_va_h"
1858 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1859 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1860 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1861
1862 h263_vaapi_hwaccel_deps="vaapi"
1863 h263_vaapi_hwaccel_select="h263_decoder"
1864 h263_vdpau_hwaccel_deps="vdpau"
1865 h263_vdpau_hwaccel_select="h263_decoder"
1866 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1867 h264_dxva2_hwaccel_deps="dxva2"
1868 h264_dxva2_hwaccel_select="h264_decoder"
1869 h264_vaapi_hwaccel_deps="vaapi"
1870 h264_vaapi_hwaccel_select="h264_decoder"
1871 h264_vda_decoder_deps="vda"
1872 h264_vda_decoder_select="h264_decoder"
1873 h264_vda_hwaccel_deps="vda"
1874 h264_vda_hwaccel_select="h264_decoder"
1875 h264_vdpau_decoder_deps="vdpau"
1876 h264_vdpau_decoder_select="h264_decoder"
1877 h264_vdpau_hwaccel_deps="vdpau"
1878 h264_vdpau_hwaccel_select="h264_decoder"
1879 mpeg_vdpau_decoder_deps="vdpau"
1880 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1881 mpeg1_vdpau_decoder_deps="vdpau"
1882 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1883 mpeg1_vdpau_hwaccel_deps="vdpau"
1884 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1885 mpeg2_crystalhd_decoder_select="crystalhd"
1886 mpeg2_dxva2_hwaccel_deps="dxva2"
1887 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1888 mpeg2_vaapi_hwaccel_deps="vaapi"
1889 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1890 mpeg2_vdpau_hwaccel_deps="vdpau"
1891 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1892 mpeg4_crystalhd_decoder_select="crystalhd"
1893 mpeg4_vaapi_hwaccel_deps="vaapi"
1894 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1895 mpeg4_vdpau_decoder_deps="vdpau"
1896 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1897 mpeg4_vdpau_hwaccel_deps="vdpau"
1898 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1899 msmpeg4_crystalhd_decoder_select="crystalhd"
1900 vc1_crystalhd_decoder_select="crystalhd"
1901 vc1_dxva2_hwaccel_deps="dxva2"
1902 vc1_dxva2_hwaccel_select="vc1_decoder"
1903 vc1_vaapi_hwaccel_deps="vaapi"
1904 vc1_vaapi_hwaccel_select="vc1_decoder"
1905 vc1_vdpau_decoder_deps="vdpau"
1906 vc1_vdpau_decoder_select="vc1_decoder"
1907 vc1_vdpau_hwaccel_deps="vdpau"
1908 vc1_vdpau_hwaccel_select="vc1_decoder"
1909 wmv3_crystalhd_decoder_select="crystalhd"
1910 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1911 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1912 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1913 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1914
1915 # parsers
1916 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1917 mpeg4video_parser_select="error_resilience mpegvideo"
1918 mpegvideo_parser_select="error_resilience mpegvideo"
1919 vc1_parser_select="mpegvideo"
1920
1921 # external libraries
1922 libaacplus_encoder_deps="libaacplus"
1923 libcelt_decoder_deps="libcelt"
1924 libfaac_encoder_deps="libfaac"
1925 libfaac_encoder_select="audio_frame_queue"
1926 libfdk_aac_encoder_deps="libfdk_aac"
1927 libfdk_aac_encoder_select="audio_frame_queue"
1928 libgsm_decoder_deps="libgsm"
1929 libgsm_encoder_deps="libgsm"
1930 libgsm_ms_decoder_deps="libgsm"
1931 libgsm_ms_encoder_deps="libgsm"
1932 libilbc_decoder_deps="libilbc"
1933 libilbc_encoder_deps="libilbc"
1934 libmodplug_demuxer_deps="libmodplug"
1935 libmp3lame_encoder_deps="libmp3lame"
1936 libmp3lame_encoder_select="audio_frame_queue"
1937 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1938 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1939 libopencore_amrnb_encoder_select="audio_frame_queue"
1940 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1941 libopenjpeg_decoder_deps="libopenjpeg"
1942 libopenjpeg_encoder_deps="libopenjpeg"
1943 libopus_decoder_deps="libopus"
1944 libopus_encoder_deps="libopus"
1945 libopus_encoder_select="audio_frame_queue"
1946 libschroedinger_decoder_deps="libschroedinger"
1947 libschroedinger_encoder_deps="libschroedinger"
1948 libspeex_decoder_deps="libspeex"
1949 libspeex_encoder_deps="libspeex"
1950 libspeex_encoder_select="audio_frame_queue"
1951 libstagefright_h264_decoder_deps="libstagefright_h264"
1952 libtheora_encoder_deps="libtheora"
1953 libtwolame_encoder_deps="libtwolame"
1954 libvo_aacenc_encoder_deps="libvo_aacenc"
1955 libvo_aacenc_encoder_select="audio_frame_queue"
1956 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1957 libvorbis_decoder_deps="libvorbis"
1958 libvorbis_encoder_deps="libvorbis"
1959 libvorbis_encoder_select="audio_frame_queue"
1960 libvpx_vp8_decoder_deps="libvpx"
1961 libvpx_vp8_encoder_deps="libvpx"
1962 libvpx_vp9_decoder_deps="libvpx"
1963 libvpx_vp9_encoder_deps="libvpx"
1964 libx264_encoder_deps="libx264"
1965 libx264rgb_encoder_deps="libx264"
1966 libxavs_encoder_deps="libxavs"
1967 libxvid_encoder_deps="libxvid"
1968 libutvideo_decoder_deps="libutvideo"
1969 libutvideo_encoder_deps="libutvideo"
1970
1971 # demuxers / muxers
1972 ac3_demuxer_select="ac3_parser"
1973 asf_stream_muxer_select="asf_muxer"
1974 avisynth_demuxer_deps="avisynth"
1975 dirac_demuxer_select="dirac_parser"
1976 dts_demuxer_select="dca_parser"
1977 dtshd_demuxer_select="dca_parser"
1978 eac3_demuxer_select="ac3_parser"
1979 f4v_muxer_select="mov_muxer"
1980 flac_demuxer_select="flac_parser"
1981 ipod_muxer_select="mov_muxer"
1982 ismv_muxer_select="mov_muxer"
1983 libnut_demuxer_deps="libnut"
1984 libnut_muxer_deps="libnut"
1985 matroska_audio_muxer_select="matroska_muxer"
1986 matroska_demuxer_suggest="bzlib lzo zlib"
1987 mov_demuxer_suggest="zlib"
1988 mov_muxer_select="rtpenc_chain"
1989 mp3_demuxer_select="mpegaudio_parser"
1990 mp4_muxer_select="mov_muxer"
1991 mpegts_muxer_select="adts_muxer latm_muxer"
1992 mpegtsraw_demuxer_select="mpegts_demuxer"
1993 mxf_d10_muxer_select="mxf_muxer"
1994 ogg_demuxer_select="golomb"
1995 psp_muxer_select="mov_muxer"
1996 rtp_demuxer_select="sdp_demuxer"
1997 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1998 rtsp_demuxer_select="http_protocol rtpdec"
1999 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2000 sap_demuxer_select="sdp_demuxer"
2001 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2002 sdp_demuxer_select="rtpdec"
2003 smoothstreaming_muxer_select="ismv_muxer"
2004 spdif_muxer_select="aac_parser"
2005 tak_demuxer_select="tak_parser"
2006 tg2_muxer_select="mov_muxer"
2007 tgp_muxer_select="mov_muxer"
2008 vobsub_demuxer_select="mpegps_demuxer"
2009 w64_demuxer_deps="wav_demuxer"
2010 w64_muxer_deps="wav_muxer"
2011
2012 # indevs / outdevs
2013 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2014 alsa_outdev_deps="alsa_asoundlib_h"
2015 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2016 caca_outdev_deps="libcaca"
2017 dshow_indev_deps="IBaseFilter"
2018 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2019 dv1394_indev_deps="dv1394 dv_demuxer"
2020 fbdev_indev_deps="linux_fb_h"
2021 iec61883_indev_deps="libiec61883"
2022 jack_indev_deps="jack_jack_h sem_timedwait"
2023 lavfi_indev_deps="avfilter"
2024 libcdio_indev_deps="libcdio"
2025 libdc1394_indev_deps="libdc1394"
2026 libv4l2_indev_deps="libv4l2"
2027 openal_indev_deps="openal"
2028 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2029 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2030 pulse_indev_deps="libpulse"
2031 sdl_outdev_deps="sdl"
2032 sndio_indev_deps="sndio_h"
2033 sndio_outdev_deps="sndio_h"
2034 v4l_indev_deps="linux_videodev_h"
2035 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2036 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2037 vfwcap_indev_extralibs="-lavicap32"
2038 x11grab_indev_deps="x11grab"
2039
2040 # protocols
2041 bluray_protocol_deps="libbluray"
2042 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2043 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2044 ffrtmpcrypt_protocol_select="tcp_protocol"
2045 ffrtmphttp_protocol_deps="!librtmp_protocol"
2046 ffrtmphttp_protocol_select="http_protocol"
2047 gopher_protocol_select="network"
2048 httpproxy_protocol_select="tcp_protocol"
2049 http_protocol_select="tcp_protocol"
2050 https_protocol_select="tls_protocol"
2051 librtmp_protocol_deps="librtmp"
2052 librtmpe_protocol_deps="librtmp"
2053 librtmps_protocol_deps="librtmp"
2054 librtmpt_protocol_deps="librtmp"
2055 librtmpte_protocol_deps="librtmp"
2056 mmsh_protocol_select="http_protocol"
2057 mmst_protocol_select="network"
2058 rtmp_protocol_deps="!librtmp_protocol"
2059 rtmp_protocol_select="tcp_protocol"
2060 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2061 rtmps_protocol_deps="!librtmp_protocol"
2062 rtmps_protocol_select="tls_protocol"
2063 rtmpt_protocol_select="ffrtmphttp_protocol"
2064 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2065 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2066 rtp_protocol_select="udp_protocol"
2067 sctp_protocol_deps="struct_sctp_event_subscribe"
2068 sctp_protocol_select="network"
2069 srtp_protocol_select="rtp_protocol"
2070 tcp_protocol_select="network"
2071 tls_protocol_deps_any="openssl gnutls"
2072 tls_protocol_select="tcp_protocol"
2073 udp_protocol_select="network"
2074
2075 # filters
2076 aconvert_filter_deps="swresample"
2077 amovie_filter_deps="avcodec avformat"
2078 aresample_filter_deps="swresample"
2079 ass_filter_deps="libass"
2080 asyncts_filter_deps="avresample"
2081 atempo_filter_deps="avcodec rdft"
2082 blackframe_filter_deps="gpl"
2083 boxblur_filter_deps="gpl"
2084 colormatrix_filter_deps="gpl"
2085 cropdetect_filter_deps="gpl"
2086 decimate_filter_deps="gpl avcodec"
2087 delogo_filter_deps="gpl"
2088 deshake_filter_deps="avcodec"
2089 drawtext_filter_deps="libfreetype"
2090 ebur128_filter_deps="gpl"
2091 flite_filter_deps="libflite"
2092 frei0r_filter_deps="frei0r dlopen"
2093 frei0r_filter_extralibs='$ldl'
2094 frei0r_src_filter_deps="frei0r dlopen"
2095 frei0r_src_filter_extralibs='$ldl'
2096 geq_filter_deps="gpl"
2097 histeq_filter_deps="gpl"
2098 hqdn3d_filter_deps="gpl"
2099 hue_filter_deps="gpl"
2100 kerndeint_filter_deps="gpl"
2101 movie_filter_deps="avcodec avformat"
2102 mp_filter_deps="gpl avcodec swscale inline_asm"
2103 mptestsrc_filter_deps="gpl"
2104 negate_filter_deps="lut_filter"
2105 noise_filter_deps="gpl"
2106 resample_filter_deps="avresample"
2107 ocv_filter_deps="libopencv"
2108 pan_filter_deps="swresample"
2109 pp_filter_deps="gpl postproc"
2110 removelogo_filter_deps="avcodec avformat swscale"
2111 scale_filter_deps="swscale"
2112 smartblur_filter_deps="gpl swscale"
2113 showspectrum_filter_deps="avcodec rdft"
2114 stereo3d_filter_deps="gpl"
2115 subtitles_filter_deps="avformat avcodec libass"
2116 super2xsai_filter_deps="gpl"
2117 tinterlace_filter_deps="gpl"
2118 yadif_filter_deps="gpl"
2119 pixfmts_super2xsai_test_deps="super2xsai_filter"
2120 tinterlace_merge_test_deps="tinterlace_filter"
2121 tinterlace_pad_test_deps="tinterlace_filter"
2122
2123 # libraries
2124 avcodec_deps="avutil"
2125 avdevice_deps="avutil avcodec avformat"
2126 avfilter_deps="avutil"
2127 avformat_deps="avutil avcodec"
2128 avresample_deps="avutil"
2129 postproc_deps="avutil gpl"
2130 swscale_deps="avutil"
2131
2132 # programs
2133 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2134 ffmpeg_select="format_filter aformat_filter
2135                setpts_filter null_filter anull_filter"
2136 ffplay_deps="avcodec avformat swscale swresample sdl"
2137 ffplay_select="rdft crop_filter"
2138 ffprobe_deps="avcodec avformat"
2139 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2140 ffserver_extralibs='$ldl'
2141
2142 # documentation
2143 podpages_deps="perl"
2144 manpages_deps="perl pod2man"
2145 htmlpages_deps="texi2html"
2146 txtpages_deps="makeinfo"
2147 doc_deps_any="manpages htmlpages podpages txtpages"
2148
2149 # default parameters
2150
2151 logfile="config.log"
2152
2153 # installation paths
2154 prefix_default="/usr/local"
2155 bindir_default='${prefix}/bin'
2156 datadir_default='${prefix}/share/ffmpeg'
2157 incdir_default='${prefix}/include'
2158 libdir_default='${prefix}/lib'
2159 mandir_default='${prefix}/share/man'
2160 shlibdir_default="$libdir_default"
2161
2162 # toolchain
2163 ar_default="ar"
2164 cc_default="gcc"
2165 cxx_default="g++"
2166 host_cc_default="gcc"
2167 cp_f="cp -f"
2168 install="install"
2169 ln_s="ln -s -f"
2170 nm_default="nm -g"
2171 objformat="elf"
2172 pkg_config_default=pkg-config
2173 ranlib="ranlib"
2174 strip_default="strip"
2175 yasmexe_default="yasm"
2176
2177 nogas=":"
2178
2179 # machine
2180 arch_default=$(uname -m)
2181 cpu="generic"
2182
2183 # OS
2184 target_os_default=$(tolower $(uname -s))
2185 host_os=$target_os_default
2186
2187 # configurable options
2188 enable $PROGRAM_LIST
2189 enable $DOCUMENT_LIST
2190 enable $(filter_out avresample $LIBRARY_LIST)
2191 enable stripping
2192
2193 enable asm
2194 enable debug
2195 enable doc
2196 enable optimizations
2197 enable runtime_cpudetect
2198 enable safe_bitstream_reader
2199 enable static
2200 enable swscale_alpha
2201
2202 # By default, enable only those hwaccels that have no external dependencies.
2203 enable dxva2 vdpau
2204
2205 # build settings
2206 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2207 FFSERVERLDFLAGS=-Wl,-E
2208 LIBPREF="lib"
2209 LIBSUF=".a"
2210 FULLNAME='$(NAME)$(BUILDSUF)'
2211 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2212 SLIBPREF="lib"
2213 SLIBSUF=".so"
2214 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2215 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2216 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2217 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2218 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2219 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2220
2221 asflags_filter=echo
2222 cflags_filter=echo
2223 ldflags_filter=echo
2224
2225 AS_C='-c'
2226 AS_O='-o $@'
2227 CC_C='-c'
2228 CC_E='-E -o $@'
2229 CC_O='-o $@'
2230 CXX_C='-c'
2231 CXX_O='-o $@'
2232 LD_O='-o $@'
2233 LD_LIB='-l%'
2234 LD_PATH='-L'
2235 HOSTCC_C='-c'
2236 HOSTCC_O='-o $@'
2237 HOSTLD_O='-o $@'
2238
2239 host_cflags='-O3 -g'
2240 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2241 host_libs='-lm'
2242 host_cflags_filter=echo
2243 host_ldflags_filter=echo
2244
2245 target_path='$(CURDIR)'
2246
2247 # since the object filename is not given with the -MM flag, the compiler
2248 # is only able to print the basename, and we must add the path ourselves
2249 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2250 DEPFLAGS='-MM'
2251
2252 # find source path
2253 if test -f configure; then
2254     source_path=.
2255 else
2256     source_path=$(cd $(dirname "$0"); pwd)
2257     echo "$source_path" | grep -q '[[:blank:]]' &&
2258         die "Out of tree builds are impossible with whitespace in source path."
2259     test -e "$source_path/config.h" &&
2260         die "Out of tree builds are impossible with config.h in source dir."
2261 fi
2262
2263 for v in "$@"; do
2264     r=${v#*=}
2265     l=${v%"$r"}
2266     r=$(sh_quote "$r")
2267     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2268 done
2269
2270 find_things(){
2271     thing=$1
2272     pattern=$2
2273     file=$source_path/$3
2274     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2275 }
2276
2277 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2278 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2279 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2280 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2281 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2282 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2283 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2284 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2285 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2286 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2287 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2288
2289 ALL_COMPONENTS="
2290     $BSF_LIST
2291     $DECODER_LIST
2292     $DEMUXER_LIST
2293     $ENCODER_LIST
2294     $FILTER_LIST
2295     $HWACCEL_LIST
2296     $INDEV_LIST
2297     $MUXER_LIST
2298     $OUTDEV_LIST
2299     $PARSER_LIST
2300     $PROTOCOL_LIST
2301 "
2302
2303 for n in $COMPONENT_LIST; do
2304     v=$(toupper ${n%s})_LIST
2305     eval enable \$$v
2306     eval ${n}_if_any="\$$v"
2307 done
2308
2309 enable $ARCH_EXT_LIST
2310
2311 die_unknown(){
2312     echo "Unknown option \"$1\"."
2313     echo "See $0 --help for available options."
2314     exit 1
2315 }
2316
2317 print_3_columns() {
2318     cat | tr ' ' '\n' | sort | pr -r -3 -t
2319 }
2320
2321 show_list() {
2322     suffix=_$1
2323     shift
2324     echo $* | sed s/$suffix//g | print_3_columns
2325     exit 0
2326 }
2327
2328 rand_list(){
2329     IFS=', '
2330     set -- $*
2331     unset IFS
2332     for thing; do
2333         comp=${thing%:*}
2334         prob=${thing#$comp}
2335         prob=${prob#:}
2336         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2337         echo "prob ${prob:-0.5}"
2338         printf '%s\n' $comp
2339     done
2340 }
2341
2342 do_random(){
2343     action=$1
2344     shift
2345     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2346     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2347 }
2348
2349 for opt do
2350     optval="${opt#*=}"
2351     case "$opt" in
2352         --extra-ldflags=*)
2353             add_ldflags $optval
2354         ;;
2355         --extra-libs=*)
2356             add_extralibs $optval
2357         ;;
2358         --disable-devices)
2359             disable $INDEV_LIST $OUTDEV_LIST
2360         ;;
2361         --enable-debug=*)
2362             debuglevel="$optval"
2363         ;;
2364         --disable-programs)
2365             disable $PROGRAM_LIST
2366         ;;
2367         --disable-everything)
2368             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2369         ;;
2370         --disable-all)
2371             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2372             disable $LIBRARY_LIST $PROGRAM_LIST doc
2373         ;;
2374         --enable-random|--disable-random)
2375             action=${opt%%-random}
2376             do_random ${action#--} $COMPONENT_LIST
2377         ;;
2378         --enable-random=*|--disable-random=*)
2379             action=${opt%%-random=*}
2380             do_random ${action#--} $optval
2381         ;;
2382         --enable-*=*|--disable-*=*)
2383             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2384             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2385             eval list=\$$(toupper $thing)_LIST
2386             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2387             list=$(filter "$name" $list)
2388             [ "$list" = "" ] && warn "Option $opt did not match anything"
2389             $action $list
2390         ;;
2391         --enable-?*|--disable-?*)
2392             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2393             if is_in $option $COMPONENT_LIST; then
2394                 test $action = disable && action=unset
2395                 eval $action \$$(toupper ${option%s})_LIST
2396             elif is_in $option $CMDLINE_SELECT; then
2397                 $action $option
2398             else
2399                 die_unknown $opt
2400             fi
2401         ;;
2402         --list-*)
2403             NAME="${opt#--list-}"
2404             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2405             NAME=${NAME%s}
2406             eval show_list $NAME \$$(toupper $NAME)_LIST
2407         ;;
2408         --help|-h) show_help
2409         ;;
2410         --fatal-warnings) enable fatal_warnings
2411         ;;
2412         *)
2413             optname="${opt%%=*}"
2414             optname="${optname#--}"
2415             optname=$(echo "$optname" | sed 's/-/_/g')
2416             if is_in $optname $CMDLINE_SET; then
2417                 eval $optname='$optval'
2418             elif is_in $optname $CMDLINE_APPEND; then
2419                 append $optname "$optval"
2420             else
2421                 die_unknown $opt
2422             fi
2423         ;;
2424     esac
2425 done
2426
2427 disabled logging && logfile=/dev/null
2428
2429 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2430 set >> $logfile
2431
2432 test -n "$cross_prefix" && enable cross_compile
2433
2434 if enabled cross_compile; then
2435     test -n "$arch" && test -n "$target_os" ||
2436         die "Must specify target arch and OS when cross-compiling"
2437 fi
2438
2439 ar_default="${cross_prefix}${ar_default}"
2440 cc_default="${cross_prefix}${cc_default}"
2441 cxx_default="${cross_prefix}${cxx_default}"
2442 nm_default="${cross_prefix}${nm_default}"
2443 pkg_config_default="${cross_prefix}${pkg_config_default}"
2444 ranlib="${cross_prefix}${ranlib}"
2445 strip_default="${cross_prefix}${strip_default}"
2446
2447 sysinclude_default="${sysroot}/usr/include"
2448
2449 case "$toolchain" in
2450     clang-asan)
2451         cc_default="clang"
2452         add_cflags  -faddress-sanitizer
2453         add_ldflags -faddress-sanitizer
2454     ;;
2455     clang-tsan)
2456         cc_default="clang"
2457         add_cflags  -fthread-sanitizer
2458         add_ldflags -fthread-sanitizer
2459     ;;
2460     msvc)
2461         cc_default="c99wrap cl"
2462         ld_default="c99wrap link"
2463         nm_default="dumpbin -symbols"
2464         ar_default="lib"
2465         target_os_default="win32"
2466     ;;
2467     ?*)
2468         die "Unknown toolchain $toolchain"
2469     ;;
2470 esac
2471
2472 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2473 enabled cross_compile || host_cc_default=$cc
2474 set_default host_cc
2475
2476 if ! $pkg_config --version >/dev/null 2>&1; then
2477     warn "$pkg_config not found, library detection may fail."
2478     pkg_config=false
2479 fi
2480
2481 exesuf() {
2482     case $1 in
2483         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2484     esac
2485 }
2486
2487 EXESUF=$(exesuf $target_os)
2488 HOSTEXESUF=$(exesuf $host_os)
2489
2490 # set temporary file name
2491 : ${TMPDIR:=$TEMPDIR}
2492 : ${TMPDIR:=$TMP}
2493 : ${TMPDIR:=/tmp}
2494
2495 if ! check_cmd mktemp -u XXXXXX; then
2496     # simple replacement for missing mktemp
2497     # NOT SAFE FOR GENERAL USE
2498     mktemp(){
2499         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2500     }
2501 fi
2502
2503 tmpfile(){
2504     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2505         (set -C; exec > $tmp) 2>/dev/null ||
2506         die "Unable to create temporary file in $TMPDIR."
2507     append TMPFILES $tmp
2508     eval $1=$tmp
2509 }
2510
2511 trap 'rm -f -- $TMPFILES' EXIT
2512
2513 tmpfile TMPASM .asm
2514 tmpfile TMPC   .c
2515 tmpfile TMPCPP .cpp
2516 tmpfile TMPE   $EXESUF
2517 tmpfile TMPH   .h
2518 tmpfile TMPO   .o
2519 tmpfile TMPS   .S
2520 tmpfile TMPSH  .sh
2521 tmpfile TMPV   .ver
2522
2523 unset -f mktemp
2524
2525 chmod +x $TMPE
2526
2527 # make sure we can execute files in $TMPDIR
2528 cat > $TMPSH 2>> $logfile <<EOF
2529 #! /bin/sh
2530 EOF
2531 chmod +x $TMPSH >> $logfile 2>&1
2532 if ! $TMPSH >> $logfile 2>&1; then
2533     cat <<EOF
2534 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2535 variable to another directory and make sure that it is not mounted noexec.
2536 EOF
2537     die "Sanity test failed."
2538 fi
2539
2540 ccc_flags(){
2541     for flag; do
2542         case $flag in
2543             -std=c99)           echo -c99                       ;;
2544             -mcpu=*)            echo -arch ${flag#*=}           ;;
2545             -mieee)             echo -ieee                      ;;
2546             -O*|-fast)          echo $flag                      ;;
2547             -fno-math-errno)    echo -assume nomath_errno       ;;
2548             -g)                 echo -g3                        ;;
2549             -Wall)              echo -msg_enable level2         ;;
2550             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2551             -Wl,*)              echo $flag                      ;;
2552             -f*|-W*)                                            ;;
2553             *)                  echo $flag                      ;;
2554         esac
2555    done
2556 }
2557
2558 msvc_flags(){
2559     for flag; do
2560         case $flag in
2561             -fomit-frame-pointer) echo -Oy ;;
2562             -g)                   echo -Z7 ;;
2563             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2564                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2565                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2566                                        -wd4554 \
2567                                        -wd4996 -wd4273 ;;
2568             -std=c99)             ;;
2569             -fno-math-errno)      ;;
2570             -fno-common)          ;;
2571             -fno-signed-zeros)    ;;
2572             -fPIC)                ;;
2573             -lz)                  echo zlib.lib ;;
2574             -lavifil32)           echo vfw32.lib ;;
2575             -lavicap32)           echo vfw32.lib user32.lib ;;
2576             -l*)                  echo ${flag#-l}.lib ;;
2577             *)                    echo $flag ;;
2578         esac
2579     done
2580 }
2581
2582 pgi_flags(){
2583     for flag; do
2584         case $flag in
2585             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2586             -fomit-frame-pointer) echo -Mnoframe ;;
2587             -g)                   echo -gopt ;;
2588             *)                    echo $flag ;;
2589         esac
2590     done
2591 }
2592
2593 suncc_flags(){
2594     for flag; do
2595         case $flag in
2596             -march=*|-mcpu=*)
2597                 case "${flag#*=}" in
2598                     native)                   echo -xtarget=native       ;;
2599                     v9|niagara)               echo -xarch=sparc          ;;
2600                     ultrasparc)               echo -xarch=sparcvis       ;;
2601                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2602                     i586|pentium)             echo -xchip=pentium        ;;
2603                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2604                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2605                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2606                     pentium4*)          echo -xtarget=pentium4           ;;
2607                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2608                     *-sse3)             echo -xarch=sse3                 ;;
2609                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2610                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2611                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2612                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2613                     bdver*)                   echo -xarch=avx            ;;
2614                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2615                     k8|opteron|athlon64|athlon-fx)
2616                                               echo -xarch=sse2a          ;;
2617                     athlon*)                  echo -xarch=pentium_proa   ;;
2618                 esac
2619                 ;;
2620             -std=c99)             echo -xc99              ;;
2621             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2622             -fPIC)                echo -KPIC -xcode=pic32 ;;
2623             -W*,*)                echo $flag              ;;
2624             -f*-*|-W*|-mimpure-text)                      ;;
2625             -shared)              echo -G                 ;;
2626             *)                    echo $flag              ;;
2627         esac
2628     done
2629 }
2630
2631 tms470_flags(){
2632     for flag; do
2633         case $flag in
2634             -march=*|-mcpu=*)
2635                 case "${flag#*=}" in
2636                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2637                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2638                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2639                     armv6*|arm11*)          echo -mv=6   ;;
2640                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2641                                             echo -mv=5e  ;;
2642                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2643                 esac
2644                 ;;
2645             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2646             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2647             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2648             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2649             -msoft-float)   echo --float_support=vfplib       ;;
2650             -O[0-3]|-mf=*)  echo $flag                        ;;
2651             -g)             echo -g -mn                       ;;
2652             -pds=*)         echo $flag                        ;;
2653             -D*|-I*)        echo $flag                        ;;
2654             --gcc|--abi=*)  echo $flag                        ;;
2655             -me)            echo $flag                        ;;
2656         esac
2657     done
2658 }
2659
2660 probe_cc(){
2661     pfx=$1
2662     _cc=$2
2663
2664     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2665     unset _ld_o _ldflags _ld_lib _ld_path
2666     unset _depflags _DEPCMD _DEPFLAGS
2667     _flags_filter=echo
2668
2669     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2670         _type=llvm_gcc
2671         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2672         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2673         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2674         _cflags_speed='-O3'
2675         _cflags_size='-Os'
2676     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2677         _type=gcc
2678         gcc_version=$($_cc --version | head -n1)
2679         gcc_basever=$($_cc -dumpversion)
2680         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2681         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2682         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2683         if ! $_cc -dumpversion | grep -q '^2\.'; then
2684             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2685         fi
2686         _cflags_speed='-O3'
2687         _cflags_size='-Os'
2688     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2689         _type=icc
2690         _ident=$($_cc --version | head -n1)
2691         _depflags='-MMD'
2692         _cflags_speed='-O3'
2693         _cflags_size='-Os'
2694         _cflags_noopt='-O1'
2695     elif $_cc -v 2>&1 | grep -q xlc; then
2696         _type=xlc
2697         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2698         _cflags_speed='-O5'
2699         _cflags_size='-O5 -qcompact'
2700     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2701         _type=ccc
2702         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2703         _DEPFLAGS='-M'
2704         _cflags_speed='-fast'
2705         _cflags_size='-O1'
2706         _flags_filter=ccc_flags
2707     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2708         test -d "$sysroot" || die "No valid sysroot specified."
2709         _type=armcc
2710         _ident=$($_cc --vsn | head -n1)
2711         armcc_conf="$PWD/armcc.conf"
2712         $_cc --arm_linux_configure                 \
2713              --arm_linux_config_file="$armcc_conf" \
2714              --configure_sysroot="$sysroot"        \
2715              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2716              die "Error creating armcc configuration file."
2717         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2718         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2719         as_default="${cross_prefix}gcc"
2720         _depflags='-MMD'
2721         _cflags_speed='-O3'
2722         _cflags_size='-Os'
2723     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2724         _type=tms470
2725         _ident=$($_cc -version | head -n1 | tr -s ' ')
2726         _flags='--gcc --abi=eabi -me'
2727         _cc_e='-ppl -fe=$@'
2728         _cc_o='-fe=$@'
2729         _depflags='-ppa -ppd=$(@:.o=.d)'
2730         _cflags_speed='-O3 -mf=5'
2731         _cflags_size='-O3 -mf=2'
2732         _flags_filter=tms470_flags
2733     elif $_cc -v 2>&1 | grep -q clang; then
2734         _type=clang
2735         _ident=$($_cc --version | head -n1)
2736         _depflags='-MMD'
2737         _cflags_speed='-O3'
2738         _cflags_size='-Os'
2739     elif $_cc -V 2>&1 | grep -q Sun; then
2740         _type=suncc
2741         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2742         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2743         _DEPFLAGS='-xM1 -xc99'
2744         _ldflags='-std=c99'
2745         _cflags_speed='-O5'
2746         _cflags_size='-O5 -xspace'
2747         _flags_filter=suncc_flags
2748     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2749         _type=pathscale
2750         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2751         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2752         _cflags_speed='-O2'
2753         _cflags_size='-Os'
2754         _flags_filter='filter_out -Wdisabled-optimization'
2755     elif $_cc -v 2>&1 | grep -q Open64; then
2756         _type=open64
2757         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2758         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2759         _cflags_speed='-O2'
2760         _cflags_size='-Os'
2761         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2762     elif $_cc -V 2>&1 | grep -q Portland; then
2763         _type=pgi
2764         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2765         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2766         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2767         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2768         _cflags_noopt="-O1"
2769         _flags_filter=pgi_flags
2770     elif $_cc 2>&1 | grep -q Microsoft; then
2771         _type=msvc
2772         _ident=$($cc 2>&1 | head -n1)
2773         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2774         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2775         _cflags_speed="-O2"
2776         _cflags_size="-O1"
2777         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2778         if $_cc 2>&1 | grep -q Linker; then
2779             _ld_o='-out $@'
2780         else
2781             _ld_o='-Fe$@'
2782         fi
2783         _cc_o='-Fo $@'
2784         _cc_e='-P -Fi $@'
2785         _flags_filter=msvc_flags
2786         _ld_lib='lib%.a'
2787         _ld_path='-libpath:'
2788         _flags='-nologo'
2789         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2790         if [ $pfx = hostcc ]; then
2791             append _cflags -Dsnprintf=_snprintf
2792         fi
2793         disable stripping
2794     fi
2795
2796     eval ${pfx}_type=\$_type
2797     eval ${pfx}_ident=\$_ident
2798 }
2799
2800 set_ccvars(){
2801     eval ${1}_C=\${_cc_c-\${${1}_C}}
2802     eval ${1}_E=\${_cc_e-\${${1}_E}}
2803     eval ${1}_O=\${_cc_o-\${${1}_O}}
2804
2805     if [ -n "$_depflags" ]; then
2806         eval ${1}_DEPFLAGS=\$_depflags
2807     else
2808         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2809         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2810         eval DEP${1}FLAGS=\$_flags
2811     fi
2812 }
2813
2814 probe_cc cc "$cc"
2815 cflags_filter=$_flags_filter
2816 cflags_speed=$_cflags_speed
2817 cflags_size=$_cflags_size
2818 cflags_noopt=$_cflags_noopt
2819 add_cflags $_flags $_cflags
2820 cc_ldflags=$_ldflags
2821 set_ccvars CC
2822
2823 probe_cc hostcc "$host_cc"
2824 host_cflags_filter=$_flags_filter
2825 add_host_cflags  $_flags $_cflags
2826 set_ccvars HOSTCC
2827
2828 test -n "$cc_type" && enable $cc_type ||
2829     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2830
2831 : ${as_default:=$cc}
2832 : ${dep_cc_default:=$cc}
2833 : ${ld_default:=$cc}
2834 : ${host_ld_default:=$host_cc}
2835 set_default ar as dep_cc ld host_ld
2836
2837 probe_cc as "$as"
2838 asflags_filter=$_flags_filter
2839 add_asflags $_flags $_cflags
2840 set_ccvars AS
2841
2842 probe_cc ld "$ld"
2843 ldflags_filter=$_flags_filter
2844 add_ldflags $_flags $_ldflags
2845 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2846 LD_O=${_ld_o-$LD_O}
2847 LD_LIB=${_ld_lib-$LD_LIB}
2848 LD_PATH=${_ld_path-$LD_PATH}
2849
2850 probe_cc hostld "$host_ld"
2851 host_ldflags_filter=$_flags_filter
2852 add_host_ldflags $_flags $_ldflags
2853 HOSTLD_O=${_ld_o-$HOSTLD_O}
2854
2855 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2856     probe_cc depcc "$dep_cc"
2857     CCDEP=${_DEPCMD:-$DEPCMD}
2858     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2859     DEPCCFLAGS=$_flags
2860 fi
2861
2862 if $ar 2>&1 | grep -q Microsoft; then
2863     arflags="-nologo"
2864     ar_o='-out:$@'
2865 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2866     arflags="rq"
2867     ar_o='$@'
2868 else
2869     arflags="rc"
2870     ar_o='$@'
2871 fi
2872
2873 add_cflags $extra_cflags
2874 add_cxxflags $extra_cxxflags
2875 add_asflags $extra_cflags
2876
2877 if test -n "$sysroot"; then
2878     case "$cc_type" in
2879         gcc|llvm_gcc|clang)
2880             add_cppflags --sysroot="$sysroot"
2881             add_ldflags --sysroot="$sysroot"
2882         ;;
2883         tms470)
2884             add_cppflags -I"$sysinclude"
2885             add_ldflags  --sysroot="$sysroot"
2886         ;;
2887     esac
2888 fi
2889
2890 if test "$cpu" = host; then
2891     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2892
2893     case "$cc_type" in
2894         gcc|llvm_gcc)
2895             check_native(){
2896                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2897                 sed -n "/cc1.*$1=/{
2898                             s/.*$1=\\([^ ]*\\).*/\\1/
2899                             p
2900                             q
2901                         }" $TMPE
2902             }
2903             cpu=$(check_native -march || check_native -mcpu)
2904         ;;
2905     esac
2906
2907     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2908 fi
2909
2910 # Deal with common $arch aliases
2911 case "$arch" in
2912     aarch64|arm64)
2913         arch="aarch64"
2914     ;;
2915     arm*|iPad*)
2916         arch="arm"
2917     ;;
2918     mips*|IP*)
2919         arch="mips"
2920     ;;
2921     parisc*|hppa*)
2922         arch="parisc"
2923     ;;
2924     "Power Macintosh"|ppc*|powerpc*)
2925         arch="ppc"
2926     ;;
2927     s390|s390x)
2928         arch="s390"
2929     ;;
2930     sh4|sh)
2931         arch="sh4"
2932     ;;
2933     sun4u|sparc*)
2934         arch="sparc"
2935     ;;
2936     tilegx|tile-gx)
2937         arch="tilegx"
2938     ;;
2939     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2940         arch="x86"
2941     ;;
2942 esac
2943
2944 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2945 enable $arch
2946
2947 # Add processor-specific flags
2948 if enabled aarch64; then
2949
2950     case $cpu in
2951         armv*)
2952             cpuflags="-march=$cpu"
2953         ;;
2954         *)
2955             cpuflags="-mcpu=$cpu"
2956         ;;
2957     esac
2958
2959 elif enabled alpha; then
2960
2961     cpuflags="-mcpu=$cpu"
2962
2963 elif enabled arm; then
2964
2965     check_arm_arch() {
2966         check_cpp_condition stddef.h \
2967             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2968             $cpuflags
2969     }
2970
2971     probe_arm_arch() {
2972         if   check_arm_arch 4;        then echo armv4;
2973         elif check_arm_arch 4T;       then echo armv4t;
2974         elif check_arm_arch 5;        then echo armv5;
2975         elif check_arm_arch 5E;       then echo armv5e;
2976         elif check_arm_arch 5T;       then echo armv5t;
2977         elif check_arm_arch 5TE;      then echo armv5te;
2978         elif check_arm_arch 5TEJ;     then echo armv5te;
2979         elif check_arm_arch 6;        then echo armv6;
2980         elif check_arm_arch 6J;       then echo armv6j;
2981         elif check_arm_arch 6K;       then echo armv6k;
2982         elif check_arm_arch 6Z;       then echo armv6z;
2983         elif check_arm_arch 6ZK;      then echo armv6zk;
2984         elif check_arm_arch 6T2;      then echo armv6t2;
2985         elif check_arm_arch 7;        then echo armv7;
2986         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2987         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2988         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2989         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2990         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2991         fi
2992     }
2993
2994     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2995
2996     case $cpu in
2997         armv*)
2998             cpuflags="-march=$cpu"
2999             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3000         ;;
3001         *)
3002             cpuflags="-mcpu=$cpu"
3003             case $cpu in
3004                 cortex-a*)                               subarch=armv7a  ;;
3005                 cortex-r*)                               subarch=armv7r  ;;
3006                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3007                 arm11*)                                  subarch=armv6   ;;
3008                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3009                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3010                 *)                             subarch=$(probe_arm_arch) ;;
3011             esac
3012         ;;
3013     esac
3014
3015     case "$subarch" in
3016         armv5t*)    enable fast_clz                ;;
3017         armv[6-8]*) enable fast_clz fast_unaligned ;;
3018     esac
3019
3020 elif enabled avr32; then
3021
3022     case $cpu in
3023         ap7[02]0[0-2])
3024             subarch="avr32_ap"
3025             cpuflags="-mpart=$cpu"
3026         ;;
3027         ap)
3028             subarch="avr32_ap"
3029             cpuflags="-march=$cpu"
3030         ;;
3031         uc3[ab]*)
3032             subarch="avr32_uc"
3033             cpuflags="-mcpu=$cpu"
3034         ;;
3035         uc)
3036             subarch="avr32_uc"
3037             cpuflags="-march=$cpu"
3038         ;;
3039     esac
3040
3041 elif enabled bfin; then
3042
3043     cpuflags="-mcpu=$cpu"
3044
3045 elif enabled mips; then
3046
3047     cpuflags="-march=$cpu"
3048
3049     case $cpu in
3050         24kc)
3051             disable mipsfpu
3052             disable mipsdspr1
3053             disable mipsdspr2
3054         ;;
3055         24kf*)
3056             disable mipsdspr1
3057             disable mipsdspr2
3058         ;;
3059         24kec|34kc|1004kc)
3060             disable mipsfpu
3061             disable mipsdspr2
3062         ;;
3063         24kef*|34kf*|1004kf*)
3064             disable mipsdspr2
3065         ;;
3066         74kc)
3067             disable mipsfpu
3068         ;;
3069     esac
3070
3071 elif enabled ppc; then
3072
3073     case $(tolower $cpu) in
3074         601|ppc601|powerpc601)
3075             cpuflags="-mcpu=601"
3076             disable altivec
3077         ;;
3078         603*|ppc603*|powerpc603*)
3079             cpuflags="-mcpu=603"
3080             disable altivec
3081         ;;
3082         604*|ppc604*|powerpc604*)
3083             cpuflags="-mcpu=604"
3084             disable altivec
3085         ;;
3086         g3|75*|ppc75*|powerpc75*)
3087             cpuflags="-mcpu=750"
3088             disable altivec
3089         ;;
3090         g4|745*|ppc745*|powerpc745*)
3091             cpuflags="-mcpu=7450"
3092         ;;
3093         74*|ppc74*|powerpc74*)
3094             cpuflags="-mcpu=7400"
3095         ;;
3096         g5|970|ppc970|powerpc970)
3097             cpuflags="-mcpu=970"
3098         ;;
3099         power[3-7]*)
3100             cpuflags="-mcpu=$cpu"
3101         ;;
3102         cell)
3103             cpuflags="-mcpu=cell"
3104             enable ldbrx
3105         ;;
3106         e500mc)
3107             cpuflags="-mcpu=e500mc"
3108             disable altivec
3109         ;;
3110         e500v2)
3111             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3112             disable altivec
3113         ;;
3114         e500)
3115             cpuflags="-mcpu=8540 -mhard-float"
3116             disable altivec
3117         ;;
3118     esac
3119
3120 elif enabled sparc; then
3121
3122     case $cpu in
3123         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3124             cpuflags="-mcpu=$cpu"
3125             disable vis
3126         ;;
3127         ultrasparc*|niagara[234])
3128             cpuflags="-mcpu=$cpu"
3129         ;;
3130     esac
3131
3132 elif enabled x86; then
3133
3134     case $cpu in
3135         i[345]86|pentium)
3136             cpuflags="-march=$cpu"
3137             disable mmx
3138         ;;
3139         # targets that do NOT support conditional mov (cmov)
3140         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3141             cpuflags="-march=$cpu"
3142             disable cmov
3143         ;;
3144         # targets that do support conditional mov (cmov)
3145         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3146             cpuflags="-march=$cpu"
3147             enable cmov
3148             enable fast_cmov
3149         ;;
3150         # targets that do support conditional mov but on which it's slow
3151         pentium4|pentium4m|prescott|nocona)
3152             cpuflags="-march=$cpu"
3153             enable cmov
3154             disable fast_cmov
3155         ;;
3156     esac
3157
3158 fi
3159
3160 if [ "$cpu" != generic ]; then
3161     add_cflags  $cpuflags
3162     add_asflags $cpuflags
3163 fi
3164
3165 # compiler sanity check
3166 check_exec <<EOF
3167 int main(void){ return 0; }
3168 EOF
3169 if test "$?" != 0; then
3170     echo "$cc is unable to create an executable file."
3171     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3172         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3173         echo "Only do this if you know what cross compiling means."
3174     fi
3175     die "C compiler test failed."
3176 fi
3177
3178 add_cppflags -D_ISOC99_SOURCE
3179 add_cxxflags -D__STDC_CONSTANT_MACROS
3180 check_cflags -std=c99
3181 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3182 #include <stdlib.h>
3183 EOF
3184 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3185 #include <stdlib.h>
3186 EOF
3187
3188 check_host_cflags -std=c99
3189 check_host_cflags -Wall
3190
3191 check_64bit(){
3192     arch32=$1
3193     arch64=$2
3194     expr=$3
3195     check_code cc "" "int test[2*($expr) - 1]" &&
3196         subarch=$arch64 || subarch=$arch32
3197 }
3198
3199 case "$arch" in
3200     aarch64|alpha|ia64)
3201         spic=$shared
3202     ;;
3203     mips)
3204         check_64bit mips mips64 '_MIPS_SIM > 1'
3205         spic=$shared
3206     ;;
3207     parisc)
3208         check_64bit parisc parisc64 'sizeof(void *) > 4'
3209         spic=$shared
3210     ;;
3211     ppc)
3212         check_64bit ppc ppc64 'sizeof(void *) > 4'
3213         spic=$shared
3214     ;;
3215     sparc)
3216         check_64bit sparc sparc64 'sizeof(void *) > 4'
3217         spic=$shared
3218     ;;
3219     x86)
3220         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3221         if test "$subarch" = "x86_64"; then
3222             spic=$shared
3223         fi
3224     ;;
3225     ppc)
3226         check_cc <<EOF && subarch="ppc64"
3227         int test[(int)sizeof(char*) - 7];
3228 EOF
3229     ;;
3230 esac
3231
3232 enable $subarch
3233 enabled spic && enable pic
3234
3235 # OS specific
3236 case $target_os in
3237     haiku)
3238         prefix_default="/boot/common"
3239         network_extralibs="-lnetwork"
3240         host_libs=
3241         ;;
3242     sunos)
3243         FFSERVERLDFLAGS=""
3244         SHFLAGS='-shared -Wl,-h,$$(@F)'
3245         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3246         network_extralibs="-lsocket -lnsl"
3247         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3248         # When using suncc to build, the Solaris linker will mark
3249         # an executable with each instruction set encountered by
3250         # the Solaris assembler.  As our libraries contain their own
3251         # guards for processor-specific code, instead suppress
3252         # generation of the HWCAPS ELF section on Solaris x86 only.
3253         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3254         nm_default='nm -P -g'
3255         ;;
3256     netbsd)
3257         disable symver
3258         oss_indev_extralibs="-lossaudio"
3259         oss_outdev_extralibs="-lossaudio"
3260         enabled gcc || check_ldflags -Wl,-zmuldefs
3261         ;;
3262     openbsd|bitrig)
3263         disable symver
3264         SHFLAGS='-shared'
3265         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3266         SLIB_INSTALL_LINKS=
3267         oss_indev_extralibs="-lossaudio"
3268         oss_outdev_extralibs="-lossaudio"
3269         ;;
3270     dragonfly)
3271         disable symver
3272         ;;
3273     freebsd)
3274         ;;
3275     bsd/os)
3276         add_extralibs -lpoll -lgnugetopt
3277         strip="strip -d"
3278         ;;
3279     darwin)
3280         gas="gas-preprocessor.pl $cc"
3281         enabled ppc && add_asflags -force_cpusubtype_ALL
3282         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3283         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3284         strip="${strip} -x"
3285         add_ldflags -Wl,-dynamic,-search_paths_first
3286         SLIBSUF=".dylib"
3287         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3288         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3289         FFSERVERLDFLAGS=-Wl,-bind_at_load
3290         objformat="macho"
3291         enabled x86_64 && objformat="macho64"
3292         enabled_any pic shared ||
3293             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3294         ;;
3295     mingw32*)
3296         if test $target_os = "mingw32ce"; then
3297             disable network
3298         else
3299             target_os=mingw32
3300         fi
3301         LIBTARGET=i386
3302         if enabled x86_64; then
3303             LIBTARGET="i386:x86-64"
3304         elif enabled arm; then
3305             LIBTARGET=arm-wince
3306         fi
3307         shlibdir_default="$bindir_default"
3308         SLIBPREF=""
3309         SLIBSUF=".dll"
3310         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3311         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3312         dlltool="${cross_prefix}dlltool"
3313         if check_cmd lib.exe -list; then
3314             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3315             if enabled x86_64; then
3316                 LIBTARGET=x64
3317             fi
3318         elif check_cmd $dlltool --version; then
3319             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3320         fi
3321         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3322         SLIB_INSTALL_LINKS=
3323         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3324         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3325         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3326         objformat="win32"
3327         ranlib=:
3328         enable dos_paths
3329         ;;
3330     win32|win64)
3331         if enabled shared; then
3332             # Link to the import library instead of the normal static library
3333             # for shared libs.
3334             LD_LIB='%.lib'
3335             # Cannot build shared and static libraries at the same time with
3336             # MSVC.
3337             disable static
3338         fi
3339         shlibdir_default="$bindir_default"
3340         SLIBPREF=""
3341         SLIBSUF=".dll"
3342         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3343         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3344         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3345         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3346         SLIB_INSTALL_LINKS=
3347         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3348         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3349         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3350         objformat="win32"
3351         ranlib=:
3352         enable dos_paths
3353         ;;
3354     cygwin*)
3355         target_os=cygwin
3356         shlibdir_default="$bindir_default"
3357         SLIBPREF="cyg"
3358         SLIBSUF=".dll"
3359         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3360         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3361         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3362         SLIB_INSTALL_LINKS=
3363         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3364         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3365         objformat="win32"
3366         enable dos_paths
3367         ;;
3368     *-dos|freedos|opendos)
3369         network_extralibs="-lsocket"
3370         objformat="coff"
3371         enable dos_paths
3372         add_cppflags -U__STRICT_ANSI__
3373         ;;
3374     linux)
3375         enable dv1394
3376         ;;
3377     irix*)
3378         target_os=irix
3379         ranlib="echo ignoring ranlib"
3380         ;;
3381     os/2*)
3382         strip="lxlite -CS"
3383         ln_s="cp -f"
3384         objformat="aout"
3385         add_cppflags -D_GNU_SOURCE
3386         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3387         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3388         FFSERVERLDFLAGS=""
3389         LIBSUF="_s.a"
3390         SLIBPREF=""
3391         SLIBSUF=".dll"
3392         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3393         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3394         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3395             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3396             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3397             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3398             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3399             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3400         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3401             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3402         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3403         enable dos_paths
3404         enable_weak os2threads
3405         ;;
3406     gnu/kfreebsd)
3407         add_cppflags -D_BSD_SOURCE
3408         ;;
3409     gnu)
3410         ;;
3411     qnx)
3412         add_cppflags -D_QNX_SOURCE
3413         network_extralibs="-lsocket"
3414         ;;
3415     symbian)
3416         SLIBSUF=".dll"
3417         enable dos_paths
3418         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3419         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3420         add_ldflags -Wl,--target1-abs,--no-undefined \
3421                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3422                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3423         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3424                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3425                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3426         ;;
3427     osf1)
3428         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3429         FFSERVERLDFLAGS=
3430         ;;
3431     minix)
3432         ;;
3433     plan9)
3434         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3435                      -D_REENTRANT_SOURCE        \
3436                      -D_RESEARCH_SOURCE         \
3437                      -DFD_SETSIZE=96            \
3438                      -DHAVE_SOCK_OPTS
3439         add_compat strtod.o strtod=avpriv_strtod
3440         network_extralibs='-lbsd'
3441         exeobjs=compat/plan9/main.o
3442         disable ffserver
3443         cp_f='cp'
3444         ;;
3445     none)
3446         ;;
3447     *)
3448         die "Unknown OS '$target_os'."
3449         ;;
3450 esac
3451
3452 # determine libc flavour
3453
3454 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3455 if check_cpp_condition features.h "defined __UCLIBC__"; then
3456     libc_type=uclibc
3457     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3458 elif check_cpp_condition features.h "defined __GLIBC__"; then
3459     libc_type=glibc
3460     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3461 # MinGW headers can be installed on Cygwin, so check for newlib first.
3462 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3463     libc_type=newlib
3464     add_cppflags -U__STRICT_ANSI__
3465 elif check_header _mingw.h; then
3466     libc_type=mingw
3467     check_cpp_condition _mingw.h \
3468         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3469             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3470         die "ERROR: MinGW runtime version must be >= 3.15."
3471     add_cppflags -U__STRICT_ANSI__
3472     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3473             __MINGW64_VERSION_MAJOR < 3"; then
3474         add_compat msvcrt/snprintf.o
3475         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3476     fi
3477 elif check_func_headers stdlib.h _get_doserrno; then
3478     libc_type=msvcrt
3479     add_compat strtod.o strtod=avpriv_strtod
3480     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3481                                  _snprintf=avpriv_snprintf  \
3482                                  vsnprintf=avpriv_vsnprintf
3483 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3484     libc_type=klibc
3485 fi
3486
3487 test -n "$libc_type" && enable $libc_type
3488
3489 # hacks for compiler/libc/os combinations
3490
3491 if enabled_all tms470 glibc; then
3492     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3493     add_cppflags -D__USER_LABEL_PREFIX__=
3494     add_cppflags -D__builtin_memset=memset
3495     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3496     add_cflags   -pds=48    # incompatible redefinition of macro
3497 fi
3498
3499 if enabled_all ccc glibc; then
3500     add_ldflags -Wl,-z,now  # calls to libots crash without this
3501 fi
3502
3503 esc(){
3504     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3505 }
3506
3507 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3508
3509 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3510
3511 set_default $PATHS_LIST
3512 set_default nm
3513
3514 # we need to build at least one lib type
3515 if ! enabled_any static shared; then
3516     cat <<EOF
3517 At least one library type must be built.
3518 Specify --enable-static to build the static libraries or --enable-shared to
3519 build the shared libraries as well. To only build the shared libraries specify
3520 --disable-static in addition to --enable-shared.
3521 EOF
3522     exit 1;
3523 fi
3524
3525 die_license_disabled() {
3526     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3527 }
3528
3529 die_license_disabled_gpl() {
3530     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3531 }
3532
3533 die_license_disabled gpl libcdio
3534 die_license_disabled gpl libutvideo
3535 die_license_disabled gpl libx264
3536 die_license_disabled gpl libxavs
3537 die_license_disabled gpl libxvid
3538 die_license_disabled gpl x11grab
3539
3540 die_license_disabled nonfree libaacplus
3541 die_license_disabled nonfree libfaac
3542 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3543 enabled gpl && die_license_disabled_gpl nonfree openssl
3544
3545 die_license_disabled version3 libopencore_amrnb
3546 die_license_disabled version3 libopencore_amrwb
3547 die_license_disabled version3 libvo_aacenc
3548 die_license_disabled version3 libvo_amrwbenc
3549
3550 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3551
3552 disabled optimizations || check_cflags -fomit-frame-pointer
3553
3554 enable_pic() {
3555     enable pic
3556     add_cppflags -DPIC
3557     add_cflags   -fPIC
3558     add_asflags  -fPIC
3559 }
3560
3561 enabled pic && enable_pic
3562
3563 check_cc <<EOF || die "Symbol mangling check failed."
3564 int ff_extern;
3565 EOF
3566 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3567 extern_prefix=${sym%%ff_extern*}
3568
3569 check_cc <<EOF && enable_weak inline_asm
3570 void foo(void) { __asm__ volatile ("" ::); }
3571 EOF
3572
3573 _restrict=
3574 for restrict_keyword in restrict __restrict__ __restrict; do
3575     check_cc <<EOF && _restrict=$restrict_keyword && break
3576 void foo(char * $restrict_keyword p);
3577 EOF
3578 done
3579
3580 check_cc <<EOF && enable attribute_packed
3581 struct { int x; } __attribute__((packed)) x;
3582 EOF
3583
3584 check_cc <<EOF && enable attribute_may_alias
3585 union { int x; } __attribute__((may_alias)) x;
3586 EOF
3587
3588 check_cc <<EOF || die "endian test failed"
3589 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3590 EOF
3591 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3592
3593 if enabled alpha; then
3594
3595     check_cflags -mieee
3596
3597 elif enabled arm; then
3598
3599     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3600 float func(float a, float b){ return a+b; }
3601 EOF
3602
3603     enabled thumb && check_cflags -mthumb || check_cflags -marm
3604     nogas=die
3605
3606     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3607         enable vfp_args
3608     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3609         case "${cross_prefix:-$cc}" in
3610             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3611             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3612 __asm__ (".eabi_attribute 28, 1");
3613 int main(void) { return 0; }
3614 EOF
3615         esac
3616         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3617     fi
3618
3619     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3620     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3621     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3622     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3623     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3624     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3625
3626     [ $target_os = linux ] ||
3627         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3628             $ARCH_EXT_LIST_ARM
3629
3630     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3631     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3632
3633     enabled_all armv6t2 shared !pic && enable_pic
3634
3635 elif enabled mips; then
3636
3637     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3638     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3639      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3640     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3641      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3642     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3643      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3644     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3645      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3646
3647 elif enabled parisc; then
3648
3649     if enabled gcc; then
3650         case $($cc -dumpversion) in
3651             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3652         esac
3653     fi
3654
3655 elif enabled ppc; then
3656
3657     enable local_aligned_8 local_aligned_16
3658
3659     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3660     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3661     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3662     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3663
3664     # AltiVec flags: The FSF version of GCC differs from the Apple version
3665     if enabled altivec; then
3666         nogas=warn
3667         check_cflags -maltivec -mabi=altivec &&
3668         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3669         check_cflags -faltivec
3670
3671         # check if our compiler supports Motorola AltiVec C API
3672         check_cc <<EOF || disable altivec
3673 $inc_altivec_h
3674 int main(void) {
3675     vector signed int v1 = (vector signed int) { 0 };
3676     vector signed int v2 = (vector signed int) { 1 };
3677     v1 = vec_add(v1, v2);
3678     return 0;
3679 }
3680 EOF
3681
3682         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3683     fi
3684
3685 elif enabled sparc; then
3686
3687     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3688
3689 elif enabled x86; then
3690
3691     check_builtin rdtsc    intrin.h   "__rdtsc()"
3692     check_builtin mm_empty mmintrin.h "_mm_empty()"
3693
3694     enable local_aligned_8 local_aligned_16
3695
3696     # check whether EBP is available on x86
3697     # As 'i' is stored on the stack, this program will crash
3698     # if the base pointer is used to access it because the
3699     # base pointer is cleared in the inline assembly code.
3700     check_exec_crash <<EOF && enable ebp_available
3701 volatile int i=0;
3702 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3703 return i;
3704 EOF
3705
3706     # check whether EBX is available on x86
3707     check_inline_asm ebx_available '""::"b"(0)' &&
3708         check_inline_asm ebx_available '"":::"%ebx"'
3709
3710     # check whether xmm clobbers are supported
3711     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3712
3713     # check whether binutils is new enough to compile SSSE3/MMXEXT
3714     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3715     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3716
3717     if ! disabled_any asm mmx yasm; then
3718         if check_cmd $yasmexe --version; then
3719             enabled x86_64 && yasm_extra="-m amd64"
3720             yasm_debug="-g dwarf2"
3721         elif check_cmd nasm -v; then
3722             yasmexe=nasm
3723             yasm_debug="-g -F dwarf"
3724             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3725         fi
3726
3727         YASMFLAGS="-f $objformat $yasm_extra"
3728         enabled pic               && append YASMFLAGS "-DPIC"
3729         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3730         case "$objformat" in
3731             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3732         esac
3733
3734         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3735             die "yasm not found, use --disable-yasm for a crippled build"
3736         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3737         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3738         check_yasm "CPU amdnop" && enable cpunop
3739     fi
3740
3741     case "$cpu" in
3742         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3743             disable fast_clz
3744         ;;
3745     esac
3746
3747 fi
3748
3749 if enabled asm; then
3750     as=${gas:=$as}
3751     check_as <<EOF && enable gnu_as || \
3752         $nogas "GNU assembler not found, install gas-preprocessor"
3753 .macro m n
3754 \n: .int 0
3755 .endm
3756 m x
3757 EOF
3758 fi
3759
3760 check_ldflags -Wl,--as-needed
3761
3762 if check_func dlopen; then
3763     ldl=
3764 elif check_func dlopen -ldl; then
3765     ldl=-ldl
3766 fi
3767
3768 if ! disabled network; then
3769     check_type "sys/types.h sys/socket.h" socklen_t
3770     check_type netdb.h "struct addrinfo"
3771     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3772     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3773     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3774     check_type netinet/in.h "struct sockaddr_in6"
3775     check_type poll.h "struct pollfd"
3776     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3777     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3778     check_type netinet/sctp.h "struct sctp_event_subscribe"
3779     check_func getaddrinfo $network_extralibs
3780     check_func getservbyport $network_extralibs
3781     # Prefer arpa/inet.h over winsock2
3782     if check_header arpa/inet.h ; then
3783         check_func closesocket
3784     elif check_header winsock2.h ; then
3785         check_func_headers winsock2.h closesocket -lws2 &&
3786             network_extralibs="-lws2" ||
3787         { check_func_headers winsock2.h closesocket -lws2_32 &&
3788             network_extralibs="-lws2_32"; }
3789         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3790         check_type ws2tcpip.h socklen_t
3791         check_type ws2tcpip.h "struct addrinfo"
3792         check_type ws2tcpip.h "struct group_source_req"
3793         check_type ws2tcpip.h "struct ip_mreq_source"
3794         check_type ws2tcpip.h "struct ipv6_mreq"
3795         check_type winsock2.h "struct pollfd"
3796         check_type ws2tcpip.h "struct sockaddr_in6"
3797         check_type ws2tcpip.h "struct sockaddr_storage"
3798         check_struct winsock2.h "struct sockaddr" sa_len
3799     else
3800         disable network
3801     fi
3802 fi
3803
3804 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3805 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3806
3807 check_func  access
3808 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3809 check_func  fcntl
3810 check_func  fork
3811 check_func  gethrtime
3812 check_func  getopt
3813 check_func  getrusage
3814 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3815 check_func  gettimeofday
3816 check_func  inet_aton $network_extralibs
3817 check_func  isatty
3818 check_func  localtime_r
3819 check_func  ${malloc_prefix}memalign            && enable memalign
3820 check_func  mkstemp
3821 check_func  mmap
3822 check_func  mprotect
3823 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3824 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3825 check_func  setrlimit
3826 check_func  strerror_r
3827 check_func  sched_getaffinity
3828 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3829 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3830 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3831 check_func  sysconf
3832 check_func  sysctl
3833 check_func  usleep
3834 check_func_headers conio.h kbhit
3835 check_func_headers windows.h PeekNamedPipe
3836 check_func_headers io.h setmode
3837 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3838 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3839 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3840 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3841 check_func_headers windows.h GetProcessAffinityMask
3842 check_func_headers windows.h GetProcessTimes
3843 check_func_headers windows.h GetSystemTimeAsFileTime
3844 check_func_headers windows.h MapViewOfFile
3845 check_func_headers windows.h SetConsoleTextAttribute
3846 check_func_headers windows.h Sleep
3847 check_func_headers windows.h VirtualAlloc
3848 check_func_headers glob.h glob
3849
3850 check_header direct.h
3851 check_header dlfcn.h
3852 check_header dxva.h
3853 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3854 check_header io.h
3855 check_header libcrystalhd/libcrystalhd_if.h
3856 check_header malloc.h
3857 check_header poll.h
3858 check_header sys/mman.h
3859 check_header sys/param.h
3860 check_header sys/resource.h
3861 check_header sys/select.h
3862 check_header sys/time.h
3863 check_header termios.h
3864 check_header unistd.h
3865 check_header vdpau/vdpau.h
3866 check_header vdpau/vdpau_x11.h
3867 check_header VideoDecodeAcceleration/VDADecoder.h
3868 check_header windows.h
3869 check_header X11/extensions/XvMClib.h
3870 check_header asm/types.h
3871
3872 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3873 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3874
3875 if ! disabled w32threads && ! enabled pthreads; then
3876     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3877 fi
3878
3879 # check for some common methods of building with pthread support
3880 # do this before the optional library checks as some of them require pthreads
3881 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3882     enable pthreads
3883     if check_func pthread_create; then
3884         :
3885     elif check_func pthread_create -pthread; then
3886         add_cflags -pthread
3887         add_extralibs -pthread
3888     elif check_func pthread_create -pthreads; then
3889         add_cflags -pthreads
3890         add_extralibs -pthreads
3891     elif check_func pthread_create -lpthreadGC2; then
3892         add_extralibs -lpthreadGC2
3893     elif ! check_lib pthread.h pthread_create -lpthread; then
3894         disable pthreads
3895     fi
3896 fi
3897
3898 for thread in $THREADS_LIST; do
3899     if enabled $thread; then
3900         test -n "$thread_type" &&
3901             die "ERROR: Only one thread type must be selected." ||
3902             thread_type="$thread"
3903     fi
3904 done
3905
3906 if enabled pthreads; then
3907   check_func pthread_cancel
3908 fi
3909
3910 check_lib math.h sin -lm && LIBM="-lm"
3911 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3912 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3913
3914 atan2f_args=2
3915 ldexpf_args=2
3916 powf_args=2
3917
3918 for func in $MATH_FUNCS; do
3919     eval check_mathfunc $func \${${func}_args:-1}
3920 done
3921
3922 # these are off by default, so fail if requested and not available
3923 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
3924                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
3925                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
3926 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3927 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3928 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3929 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3930 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3931 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3932 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3933 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3934                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3935                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3936 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3937 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3938 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3939 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
3940 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3941 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3942 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3943                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3944                         done || die "ERROR: libgsm not found"; }
3945 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3946 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3947 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3948 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3949 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3950 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3951 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3952 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3953                          check_lib openjpeg.h opj_version -lopenjpeg ||
3954                          die "ERROR: libopenjpeg not found"; }
3955 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3956 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3957 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3958 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3959 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3960 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3961 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3962     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3963     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3964 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3965 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3966                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3967                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3968 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3969 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3970 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3971 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3972 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3973 enabled libvpx     && {
3974     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3975                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3976     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3977                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3978     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3979     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3980 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3981                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3982                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3983 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3984 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3985 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3986                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3987                         die "ERROR: openal not found"; } &&
3988                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3989                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3990 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3991                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3992                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3993                         die "ERROR: openssl not found"; }
3994
3995 if enabled gnutls; then
3996     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3997     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3998 fi
3999
4000 # libdc1394 check
4001 if enabled libdc1394; then
4002     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4003         enable libdc1394_2; } ||
4004     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4005         enable libdc1394_1; } ||
4006     die "ERROR: No version of libdc1394 found "
4007 fi
4008
4009 SDL_CONFIG="${cross_prefix}sdl-config"
4010 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4011     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4012     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4013     enable sdl
4014 else
4015   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4016     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4017     sdl_libs=$("${SDL_CONFIG}" --libs)
4018     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4019     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4020     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4021     enable sdl
4022   fi
4023 fi
4024 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4025
4026 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4027 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4028 perl --version > /dev/null 2>&1 && enable perl || disable perl
4029 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4030 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4031
4032 check_header linux/fb.h
4033 check_header linux/videodev.h
4034 check_header linux/videodev2.h
4035 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4036
4037 check_header sys/videoio.h
4038
4039 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4040 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4041 # w32api 3.12 had it defined wrong
4042 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4043
4044 check_type "dshow.h" IBaseFilter
4045
4046 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4047 { check_header dev/bktr/ioctl_meteor.h &&
4048   check_header dev/bktr/ioctl_bt848.h; } ||
4049 { check_header machine/ioctl_meteor.h &&
4050   check_header machine/ioctl_bt848.h; } ||
4051 { check_header dev/video/meteor/ioctl_meteor.h &&
4052   check_header dev/video/bktr/ioctl_bt848.h; } ||
4053 check_header dev/ic/bt8xx.h
4054
4055 check_header sndio.h
4056 if check_struct sys/soundcard.h audio_buf_info bytes; then
4057     enable_safe sys/soundcard.h
4058 else
4059     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4060     #include <sys/soundcard.h>
4061     audio_buf_info abc;
4062 EOF
4063 fi
4064 check_header soundcard.h
4065
4066 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4067
4068 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4069     check_func jack_port_get_latency_range -ljack
4070
4071 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4072
4073 if enabled libcdio; then
4074     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4075 fi
4076
4077 enabled x11grab                                           &&
4078 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4079 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4080 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4081
4082 if ! disabled vaapi; then
4083     check_lib va/va.h vaInitialize -lva && {
4084         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4085         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4086     } || disable vaapi
4087 fi
4088
4089 enabled vdpau &&
4090     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4091     disable vdpau
4092
4093 # Funny iconv installations are not unusual, so check it after all flags have been set
4094 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4095
4096 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4097 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4098 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4099
4100 # add some useful compiler flags if supported
4101 check_cflags -Wdeclaration-after-statement
4102 check_cflags -Wall
4103 check_cflags -Wno-parentheses
4104 check_cflags -Wno-switch
4105 check_cflags -Wno-format-zero-length
4106 check_cflags -Wdisabled-optimization
4107 check_cflags -Wpointer-arith
4108 check_cflags -Wredundant-decls
4109 check_cflags -Wno-pointer-sign
4110 check_cflags -Wwrite-strings
4111 check_cflags -Wtype-limits
4112 check_cflags -Wundef
4113 check_cflags -Wmissing-prototypes
4114 check_cflags -Wno-pointer-to-int-cast
4115 check_cflags -Wstrict-prototypes
4116 enabled extra_warnings && check_cflags -Winline
4117
4118 # add some linker flags
4119 check_ldflags -Wl,--warn-common
4120 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4121 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4122
4123 enabled xmm_clobber_test &&
4124     check_ldflags -Wl,--wrap,avcodec_open2              \
4125                   -Wl,--wrap,avcodec_decode_audio4      \
4126                   -Wl,--wrap,avcodec_decode_video2      \
4127                   -Wl,--wrap,avcodec_decode_subtitle2   \
4128                   -Wl,--wrap,avcodec_encode_audio2      \
4129                   -Wl,--wrap,avcodec_encode_video       \
4130                   -Wl,--wrap,avcodec_encode_subtitle    \
4131                   -Wl,--wrap,sws_scale ||
4132     disable xmm_clobber_test
4133
4134 echo "X{};" > $TMPV
4135 if test_ldflags -Wl,--version-script,$TMPV; then
4136     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4137     check_cc <<EOF && enable symver_asm_label
4138 void ff_foo(void) __asm__ ("av_foo@VERSION");
4139 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4140 EOF
4141     check_cc <<EOF && enable symver_gnu_asm
4142 __asm__(".symver ff_foo,av_foo@VERSION");
4143 void ff_foo(void) {}
4144 EOF
4145 fi
4146
4147 if [ -z "$optflags" ]; then
4148     if enabled small; then
4149         optflags=$cflags_size
4150     elif enabled optimizations; then
4151         optflags=$cflags_speed
4152     else
4153         optflags=$cflags_noopt
4154     fi
4155 fi
4156
4157 check_optflags(){
4158     check_cflags "$@"
4159     enabled lto && check_ldflags "$@"
4160 }
4161
4162
4163 if enabled lto; then
4164     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4165     check_cflags  -flto
4166     check_ldflags -flto $cpuflags
4167 fi
4168
4169 check_optflags $optflags
4170 check_optflags -fno-math-errno
4171 check_optflags -fno-signed-zeros
4172
4173 enabled ftrapv && check_cflags -ftrapv
4174
4175 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4176 int x;
4177 EOF
4178
4179
4180 if enabled icc; then
4181     # Just warnings, no remarks
4182     check_cflags -w1
4183     # -wd: Disable following warnings
4184     # 144, 167, 556: -Wno-pointer-sign
4185     # 188: enumerated type mixed with another type
4186     # 1292: attribute "foo" ignored
4187     # 1419: external declaration in primary source file
4188     # 10006: ignoring unknown option -fno-signed-zeros
4189     # 10148: ignoring unknown option -Wno-parentheses
4190     # 10156: ignoring option '-W'; no argument required
4191     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4192     # 11030: Warning unknown option --as-needed
4193     # 10156: ignoring option '-export'; no argument required
4194     check_ldflags -wd10156,11030
4195     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4196     enable ebp_available
4197     if enabled x86_32; then
4198         icc_version=$($cc -dumpversion)
4199         test ${icc_version%%.*} -ge 11 &&
4200             check_cflags -falign-stack=maintain-16-byte ||
4201             disable aligned_stack
4202     fi
4203 elif enabled ccc; then
4204     # disable some annoying warnings
4205     add_cflags -msg_disable bitnotint
4206     add_cflags -msg_disable mixfuncvoid
4207     add_cflags -msg_disable nonstandcast
4208     add_cflags -msg_disable unsupieee
4209 elif enabled gcc; then
4210     check_optflags -fno-tree-vectorize
4211     check_cflags -Werror=implicit-function-declaration
4212     check_cflags -Werror=missing-prototypes
4213     check_cflags -Werror=return-type
4214     check_cflags -Werror=vla
4215 elif enabled llvm_gcc; then
4216     check_cflags -mllvm -stack-alignment=16
4217 elif enabled clang; then
4218     check_cflags -mllvm -stack-alignment=16
4219     check_cflags -Qunused-arguments
4220     check_cflags -Werror=implicit-function-declaration
4221     check_cflags -Werror=missing-prototypes
4222     check_cflags -Werror=return-type
4223 elif enabled armcc; then
4224     # 2523: use of inline assembler is deprecated
4225     add_cflags -W${armcc_opt},--diag_suppress=2523
4226     add_cflags -W${armcc_opt},--diag_suppress=1207
4227     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4228     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4229     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4230     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4231 elif enabled tms470; then
4232     add_cflags -pds=824 -pds=837
4233 elif enabled pathscale; then
4234     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4235 elif enabled msvc; then
4236     enabled x86_32 && disable aligned_stack
4237 fi
4238
4239 case $target_os in
4240     osf1)
4241         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4242     ;;
4243     plan9)
4244         add_cppflags -Dmain=plan9_main
4245     ;;
4246 esac
4247
4248 enabled_any $THREADS_LIST      && enable threads
4249 enable frame_thread_encoder
4250
4251 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4252
4253 check_deps $CONFIG_LIST       \
4254            $CONFIG_EXTRA      \
4255            $HAVE_LIST         \
4256            $ALL_COMPONENTS    \
4257
4258
4259 if test $target_os = "haiku"; then
4260     disable memalign
4261     disable posix_memalign
4262 fi
4263
4264 ! enabled_any memalign posix_memalign aligned_malloc &&
4265     enabled_any $need_memalign && enable memalign_hack
4266
4267 # add_dep lib dep
4268 # -> enable ${lib}_deps_${dep}
4269 # -> add $dep to ${lib}_deps only once
4270 add_dep() {
4271     lib=$1
4272     dep=$2
4273     enabled "${lib}_deps_${dep}" && return 0
4274     enable  "${lib}_deps_${dep}"
4275     prepend "${lib}_deps" $dep
4276 }
4277
4278 # merge deps lib components
4279 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4280 merge_deps() {
4281     lib=$1
4282     shift
4283     for comp in $*; do
4284         enabled $comp || continue
4285         eval "dep=\"\$${comp}_deps\""
4286         for d in $dep; do
4287             add_dep $lib $d
4288         done
4289     done
4290 }
4291
4292 merge_deps libavfilter $FILTER_LIST
4293
4294 echo "install prefix            $prefix"
4295 echo "source path               $source_path"
4296 echo "C compiler                $cc"
4297 echo "ARCH                      $arch ($cpu)"
4298 if test "$build_suffix" != ""; then
4299     echo "build suffix              $build_suffix"
4300 fi
4301 if test "$progs_suffix" != ""; then
4302     echo "progs suffix              $progs_suffix"
4303 fi
4304 if test "$extra_version" != ""; then
4305     echo "version string suffix     $extra_version"
4306 fi
4307 echo "big-endian                ${bigendian-no}"
4308 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4309 if enabled x86; then
4310     echo "${yasmexe}                      ${yasm-no}"
4311     echo "MMX enabled               ${mmx-no}"
4312     echo "MMXEXT enabled            ${mmxext-no}"
4313     echo "3DNow! enabled            ${amd3dnow-no}"
4314     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4315     echo "SSE enabled               ${sse-no}"
4316     echo "SSSE3 enabled             ${ssse3-no}"
4317     echo "AVX enabled               ${avx-no}"
4318     echo "FMA4 enabled              ${fma4-no}"
4319     echo "CMOV enabled              ${cmov-no}"
4320     echo "CMOV is fast              ${fast_cmov-no}"
4321     echo "EBX available             ${ebx_available-no}"
4322     echo "EBP available             ${ebp_available-no}"
4323 fi
4324 if enabled arm; then
4325     echo "ARMv5TE enabled           ${armv5te-no}"
4326     echo "ARMv6 enabled             ${armv6-no}"
4327     echo "ARMv6T2 enabled           ${armv6t2-no}"
4328     echo "VFP enabled               ${vfp-no}"
4329     echo "NEON enabled              ${neon-no}"
4330     echo "THUMB enabled             ${thumb-no}"
4331 fi
4332 if enabled mips; then
4333     echo "MIPS FPU enabled          ${mipsfpu-no}"
4334     echo "MIPS32R2 enabled          ${mips32r2-no}"
4335     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4336     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4337 fi
4338 if enabled ppc; then
4339     echo "AltiVec enabled           ${altivec-no}"
4340     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4341     echo "dcbzl available           ${dcbzl-no}"
4342 fi
4343 if enabled sparc; then
4344     echo "VIS enabled               ${vis-no}"
4345 fi
4346 echo "debug symbols             ${debug-no}"
4347 echo "strip symbols             ${stripping-no}"
4348 echo "optimize for size         ${small-no}"
4349 echo "optimizations             ${optimizations-no}"
4350 echo "static                    ${static-no}"
4351 echo "shared                    ${shared-no}"
4352 echo "postprocessing support    ${postproc-no}"
4353 echo "new filter support        ${avfilter-no}"
4354 echo "network support           ${network-no}"
4355 echo "threading support         ${thread_type-no}"
4356 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4357 echo "SDL support               ${sdl-no}"
4358 echo "texi2html enabled         ${texi2html-no}"
4359 echo "perl enabled              ${perl-no}"
4360 echo "pod2man enabled           ${pod2man-no}"
4361 echo "makeinfo enabled          ${makeinfo-no}"
4362 test -n "$random_seed" &&
4363     echo "random seed               ${random_seed}"
4364 echo
4365
4366 echo "External libraries:"
4367 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4368 echo
4369
4370 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4371     echo "Enabled ${type}s:"
4372     eval list=\$$(toupper $type)_LIST
4373     print_enabled '_*' $list | print_3_columns
4374     echo
4375 done
4376
4377 license="LGPL version 2.1 or later"
4378 if enabled nonfree; then
4379     license="nonfree and unredistributable"
4380 elif enabled gplv3; then
4381     license="GPL version 3 or later"
4382 elif enabled lgplv3; then
4383     license="LGPL version 3 or later"
4384 elif enabled gpl; then
4385     license="GPL version 2 or later"
4386 fi
4387
4388 echo "License: $license"
4389
4390 echo "Creating config.mak and config.h..."
4391
4392 test -e Makefile || $ln_s "$source_path/Makefile" .
4393
4394 enabled stripping || strip="echo skipping strip"
4395
4396 config_files="$TMPH config.mak"
4397
4398 cat > config.mak <<EOF
4399 # Automatically generated by configure - do not modify!
4400 ifndef FFMPEG_CONFIG_MAK
4401 FFMPEG_CONFIG_MAK=1
4402 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4403 prefix=$prefix
4404 LIBDIR=\$(DESTDIR)$libdir
4405 SHLIBDIR=\$(DESTDIR)$shlibdir
4406 INCDIR=\$(DESTDIR)$incdir
4407 BINDIR=\$(DESTDIR)$bindir
4408 DATADIR=\$(DESTDIR)$datadir
4409 MANDIR=\$(DESTDIR)$mandir
4410 SRC_PATH=$source_path
4411 ifndef MAIN_MAKEFILE
4412 SRC_PATH:=\$(SRC_PATH:.%=..%)
4413 endif
4414 CC_IDENT=$cc_ident
4415 ARCH=$arch
4416 CC=$cc
4417 CXX=$cxx
4418 AS=$as
4419 LD=$ld
4420 DEPCC=$dep_cc
4421 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4422 DEPAS=$as
4423 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4424 YASM=$yasmexe
4425 DEPYASM=$yasmexe
4426 AR=$ar
4427 ARFLAGS=$arflags
4428 AR_O=$ar_o
4429 RANLIB=$ranlib
4430 CP=cp -p
4431 LN_S=$ln_s
4432 STRIP=$strip
4433 CPPFLAGS=$CPPFLAGS
4434 CFLAGS=$CFLAGS
4435 CXXFLAGS=$CXXFLAGS
4436 ASFLAGS=$ASFLAGS
4437 AS_C=$AS_C
4438 AS_O=$AS_O
4439 CC_C=$CC_C
4440 CC_E=$CC_E
4441 CC_O=$CC_O
4442 CXX_C=$CXX_C
4443 CXX_O=$CXX_O
4444 LD_O=$LD_O
4445 LD_LIB=$LD_LIB
4446 LD_PATH=$LD_PATH
4447 DLLTOOL=$dlltool
4448 LDFLAGS=$LDFLAGS
4449 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4450 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4451 YASMFLAGS=$YASMFLAGS
4452 BUILDSUF=$build_suffix
4453 PROGSSUF=$progs_suffix
4454 FULLNAME=$FULLNAME
4455 LIBPREF=$LIBPREF
4456 LIBSUF=$LIBSUF
4457 LIBNAME=$LIBNAME
4458 SLIBPREF=$SLIBPREF
4459 SLIBSUF=$SLIBSUF
4460 EXESUF=$EXESUF
4461 EXTRA_VERSION=$extra_version
4462 CCDEP=$CCDEP
4463 CXXDEP=$CXXDEP
4464 CCDEP_FLAGS=$CCDEP_FLAGS
4465 ASDEP=$ASDEP
4466 ASDEP_FLAGS=$ASDEP_FLAGS
4467 CC_DEPFLAGS=$CC_DEPFLAGS
4468 AS_DEPFLAGS=$AS_DEPFLAGS
4469 HOSTCC=$host_cc
4470 HOSTLD=$host_ld
4471 HOSTCFLAGS=$host_cflags
4472 HOSTCPPFLAGS=$host_cppflags
4473 HOSTEXESUF=$HOSTEXESUF
4474 HOSTLDFLAGS=$host_ldflags
4475 HOSTLIBS=$host_libs
4476 DEPHOSTCC=$host_cc
4477 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4478 HOSTCCDEP=$HOSTCCDEP
4479 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4480 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4481 HOSTCC_C=$HOSTCC_C
4482 HOSTCC_O=$HOSTCC_O
4483 HOSTLD_O=$HOSTLD_O
4484 TARGET_EXEC=$target_exec
4485 TARGET_PATH=$target_path
4486 LIBS-ffplay=$sdl_libs
4487 CFLAGS-ffplay=$sdl_cflags
4488 ZLIB=$($ldflags_filter -lz)
4489 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4490 EXTRALIBS=$extralibs
4491 COMPAT_OBJS=$compat_objs
4492 EXEOBJS=$exeobjs
4493 INSTALL=$install
4494 LIBTARGET=${LIBTARGET}
4495 SLIBNAME=${SLIBNAME}
4496 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4497 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4498 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4499 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4500 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4501 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4502 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4503 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4504 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4505 NOREDZONE_FLAGS=$noredzone_flags
4506 EOF
4507
4508 get_version(){
4509     lcname=lib${1}
4510     name=$(toupper $lcname)
4511     file=$source_path/$lcname/version.h
4512     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4513     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4514     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4515     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4516     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4517 }
4518
4519 map 'get_version $v' $LIBRARY_LIST
4520
4521 cat > $TMPH <<EOF
4522 /* Automatically generated by configure - do not modify! */
4523 #ifndef FFMPEG_CONFIG_H
4524 #define FFMPEG_CONFIG_H
4525 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4526 #define FFMPEG_LICENSE "$(c_escape $license)"
4527 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4528 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4529 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4530 #define av_restrict $_restrict
4531 #define EXTERN_PREFIX "${extern_prefix}"
4532 #define EXTERN_ASM ${extern_prefix}
4533 #define SLIBSUF "$SLIBSUF"
4534 #define HAVE_MMX2 HAVE_MMXEXT
4535 EOF
4536
4537 test -n "$assert_level" &&
4538     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4539
4540 test -n "$malloc_prefix" &&
4541     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4542
4543 if enabled yasm; then
4544     append config_files $TMPASM
4545     printf '' >$TMPASM
4546 fi
4547
4548 print_config ARCH_   "$config_files" $ARCH_LIST
4549 print_config HAVE_   "$config_files" $HAVE_LIST
4550 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4551                                      $CONFIG_EXTRA      \
4552                                      $ALL_COMPONENTS    \
4553
4554 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4555 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4556
4557 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4558 cp_if_changed $TMPH config.h
4559 touch .config
4560
4561 enabled yasm && cp_if_changed $TMPASM config.asm
4562
4563 cat > $TMPH <<EOF
4564 /* Generated by ffconf */
4565 #ifndef AVUTIL_AVCONFIG_H
4566 #define AVUTIL_AVCONFIG_H
4567 EOF
4568
4569 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4570
4571 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4572
4573 cp_if_changed $TMPH libavutil/avconfig.h
4574
4575 if test -n "$WARNINGS"; then
4576     printf "\n$WARNINGS"
4577     enabled fatal_warnings && exit 1
4578 fi
4579
4580 # build pkg-config files
4581
4582 pkgconfig_generate(){
4583     name=$1
4584     shortname=${name#lib}${build_suffix}
4585     comment=$2
4586     version=$3
4587     libs=$4
4588     requires=$5
4589     enabled ${name#lib} || return 0
4590     mkdir -p $name
4591     cat <<EOF > $name/$name${build_suffix}.pc
4592 prefix=$prefix
4593 exec_prefix=\${prefix}
4594 libdir=$libdir
4595 includedir=$incdir
4596
4597 Name: $name
4598 Description: $comment
4599 Version: $version
4600 Requires: $(enabled shared || echo $requires)
4601 Requires.private: $(enabled shared && echo $requires)
4602 Conflicts:
4603 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4604 Libs.private: $(enabled shared && echo $libs)
4605 Cflags: -I\${includedir}
4606 EOF
4607
4608 mkdir -p doc/examples/pc-uninstalled
4609 includedir=${source_path}
4610 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4611     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4612 prefix=
4613 exec_prefix=
4614 libdir=\${pcfiledir}/../../../$name
4615 includedir=${includedir}
4616
4617 Name: $name
4618 Description: $comment
4619 Version: $version
4620 Requires: $requires
4621 Conflicts:
4622 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4623 Cflags: -I\${includedir}
4624 EOF
4625 }
4626
4627 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4628 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4629 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4630 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4631 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4632 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4633 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4634 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4635
4636 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4637 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4638
4639 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4640 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4641 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4642 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4643 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4644 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4645 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4646 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4647 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4648
4649 fix_ffmpeg_remote(){
4650     git_remote_from=$1
4651     git_remote_to=$2
4652     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4653     if [ "$fixme_remote" != "" ]; then
4654         echolog "
4655 Outdated domain in git config, the official domain for ffmpeg git is since
4656 November 2011, source.ffmpeg.org, both the old and the new point to the same
4657 repository and server. To update it enter the following commands:
4658 "
4659         for remote in $fixme_remote; do
4660             echolog "git remote set-url $remote $git_remote_to"
4661         done
4662     fi
4663 }
4664
4665 if test -f "$source_path/.git/config"; then
4666     remote_from=git.videolan.org
4667     remote_to=source.ffmpeg.org
4668     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4669     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4670 fi