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   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 106   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
 107
 108 Program options:
 109   --disable-programs       do not build command line programs
 110   --disable-ffmpeg         disable ffmpeg build
 111   --disable-ffplay         disable ffplay build
 112   --disable-ffprobe        disable ffprobe build
 113   --disable-ffserver       disable ffserver build
 114
 115 Documentation options:
 116   --disable-doc            do not build documentation
 117   --disable-htmlpages      do not build HTML documentation pages
 118   --disable-manpages       do not build man documentation pages
 119   --disable-podpages       do not build POD documentation pages
 120   --disable-txtpages       do not build text documentation pages
 121
 122 Component options:
 123   --disable-avdevice       disable libavdevice build
 124   --disable-avcodec        disable libavcodec build
 125   --disable-avformat       disable libavformat build
 126   --disable-avutil         disable libavutil build
 127   --disable-swresample     disable libswresample build
 128   --disable-swscale        disable libswscale build
 129   --disable-postproc       disable libpostproc build
 130   --disable-avfilter       disable libavfilter build
 131   --enable-avresample      enable libavresample build [no]
 132   --disable-pthreads       disable pthreads [auto]
 133   --disable-w32threads     disable Win32 threads [auto]
 134   --disable-os2threads     disable OS/2 threads [auto]
 135   --disable-network        disable network support [no]
 136   --disable-dct            disable DCT code
 137   --disable-dwt            disable DWT code
 138   --disable-error-resilience disable error resilience code
 139   --disable-lsp            disable LSP code
 140   --disable-lzo            disable LZO decoder code
 141   --disable-mdct           disable MDCT code
 142   --disable-rdft           disable RDFT code
 143   --disable-fft            disable FFT code
 144
 145 Hardware accelerators:
 146   --disable-dxva2          disable DXVA2 code [autodetect]
 147   --disable-vaapi          disable VAAPI code [autodetect]
 148   --enable-vda             enable VDA code
 149   --disable-vdpau          disable VDPAU code [autodetect]
 150
 151 Individual component options:
 152   --disable-everything     disable all components listed below
 153   --disable-encoder=NAME   disable encoder NAME
 154   --enable-encoder=NAME    enable encoder NAME
 155   --disable-encoders       disable all encoders
 156   --disable-decoder=NAME   disable decoder NAME
 157   --enable-decoder=NAME    enable decoder NAME
 158   --disable-decoders       disable all decoders
 159   --disable-hwaccel=NAME   disable hwaccel NAME
 160   --enable-hwaccel=NAME    enable hwaccel NAME
 161   --disable-hwaccels       disable all hwaccels
 162   --disable-muxer=NAME     disable muxer NAME
 163   --enable-muxer=NAME      enable muxer NAME
 164   --disable-muxers         disable all muxers
 165   --disable-demuxer=NAME   disable demuxer NAME
 166   --enable-demuxer=NAME    enable demuxer NAME
 167   --disable-demuxers       disable all demuxers
 168   --enable-parser=NAME     enable parser NAME
 169   --disable-parser=NAME    disable parser NAME
 170   --disable-parsers        disable all parsers
 171   --enable-bsf=NAME        enable bitstream filter NAME
 172   --disable-bsf=NAME       disable bitstream filter NAME
 173   --disable-bsfs           disable all bitstream filters
 174   --enable-protocol=NAME   enable protocol NAME
 175   --disable-protocol=NAME  disable protocol NAME
 176   --disable-protocols      disable all protocols
 177   --enable-indev=NAME      enable input device NAME
 178   --disable-indev=NAME     disable input device NAME
 179   --disable-indevs         disable input devices
 180   --enable-outdev=NAME     enable output device NAME
 181   --disable-outdev=NAME    disable output device NAME
 182   --disable-outdevs        disable output devices
 183   --disable-devices        disable all devices
 184   --enable-filter=NAME     enable filter NAME
 185   --disable-filter=NAME    disable filter NAME
 186   --disable-filters        disable all filters
 187
 188 External library support:
 189   --enable-avisynth        enable reading of AviSynth script files [no]
 190   --disable-bzlib          disable bzlib [autodetect]
 191   --enable-fontconfig      enable fontconfig
 192   --enable-frei0r          enable frei0r video filtering
 193   --enable-gnutls          enable gnutls [no]
 194   --disable-iconv          disable iconv [autodetect]
 195   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 196   --enable-libass          enable libass subtitles rendering [no]
 197   --enable-libbluray       enable BluRay reading using libbluray [no]
 198   --enable-libcaca         enable textual display using libcaca
 199   --enable-libcelt         enable CELT decoding via libcelt [no]
 200   --enable-libcdio         enable audio CD grabbing with libcdio
 201   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 202                            and libraw1394 [no]
 203   --enable-libfaac         enable AAC encoding via libfaac [no]
 204   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 205   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 206   --enable-libfreetype     enable libfreetype [no]
 207   --enable-libgme          enable Game Music Emu via libgme [no]
 208   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 209   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 210   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 211   --enable-libmodplug      enable ModPlug via libmodplug [no]
 212   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 213   --enable-libnut          enable NUT (de)muxing via libnut,
 214                            native (de)muxer exists [no]
 215   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 216   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 217   --enable-libopencv       enable video filtering via libopencv [no]
 218   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 219   --enable-libopus         enable Opus decoding via libopus [no]
 220   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 221   --enable-libquvi         enable quvi input via libquvi [no]
 222   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 223   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 224   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 225   --enable-libsoxr         enable Include libsoxr resampling [no]
 226   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 227   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 228   --enable-libtheora       enable Theora encoding via libtheora [no]
 229   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 230   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 231   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 232   --enable-libvidstab      enable video stabilization using vid.stab [no]
 233   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 234   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 235   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 236                            native implementation exists [no]
 237   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 238   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 239   --enable-libx264         enable H.264 encoding via x264 [no]
 240   --enable-libxavs         enable AVS encoding via xavs [no]
 241   --enable-libxvid         enable Xvid encoding via xvidcore,
 242                            native MPEG-4/Xvid encoder exists [no]
 243   --enable-libzmq          enable message passing via libzmq [no]
 244   --enable-openal          enable OpenAL 1.1 capture support [no]
 245   --enable-opencl          enable OpenCL code
 246   --enable-openssl         enable openssl [no]
 247   --enable-x11grab         enable X11 grabbing [no]
 248   --disable-zlib           disable zlib [autodetect]
 249
 250 Advanced options (experts only):
 251   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 252   --enable-cross-compile   assume a cross-compiler is used
 253   --sysroot=PATH           root of cross-build tree
 254   --sysinclude=PATH        location of cross-build system headers
 255   --target-os=OS           compiler targets OS [$target_os]
 256   --target-exec=CMD        command to run executables on target
 257   --target-path=DIR        path to view of build directory on target
 258   --target-samples=DIR     path to samples directory on target
 259   --toolchain=NAME         set tool defaults according to NAME
 260   --nm=NM                  use nm tool NM [$nm_default]
 261   --ar=AR                  use archive tool AR [$ar_default]
 262   --as=AS                  use assembler AS [$as_default]
 263   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 264   --cc=CC                  use C compiler CC [$cc_default]
 265   --cxx=CXX                use C compiler CXX [$cxx_default]
 266   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 267   --ld=LD                  use linker LD [$ld_default]
 268   --host-cc=HOSTCC         use host C compiler HOSTCC
 269   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 270   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 271   --host-ld=HOSTLD         use host linker HOSTLD
 272   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 273   --host-libs=HLIBS        use libs HLIBS when linking for host
 274   --host-os=OS             compiler host OS [$target_os]
 275   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 276   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 277   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 278   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 279   --extra-version=STRING   version string suffix []
 280   --optflags=OPTFLAGS      override optimization-related compiler flags
 281   --build-suffix=SUFFIX    library name suffix []
 282   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 283   --progs-suffix=SUFFIX    program name suffix []
 284   --arch=ARCH              select architecture [$arch]
 285   --cpu=CPU                select the minimum required CPU (affects
 286                            instruction selection, may crash on older CPUs)
 287   --enable-pic             build position-independent code
 288   --enable-sram            allow use of on-chip SRAM
 289   --enable-thumb           compile for Thumb instruction set
 290   --disable-symver         disable symbol versioning
 291   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 292   --disable-safe-bitstream-reader
 293                            disable buffer boundary checking in bitreaders
 294                            (faster, but may crash)
 295   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 296   --enable-lto             use link-time optimization
 297
 298 Optimization options (experts only):
 299   --disable-asm            disable all assembler optimizations
 300   --disable-altivec        disable AltiVec optimizations
 301   --disable-amd3dnow       disable 3DNow! optimizations
 302   --disable-amd3dnowext    disable 3DNow! extended optimizations
 303   --disable-mmx            disable MMX optimizations
 304   --disable-mmxext         disable MMXEXT optimizations
 305   --disable-sse            disable SSE optimizations
 306   --disable-sse2           disable SSE2 optimizations
 307   --disable-sse3           disable SSE3 optimizations
 308   --disable-ssse3          disable SSSE3 optimizations
 309   --disable-sse4           disable SSE4 optimizations
 310   --disable-sse42          disable SSE4.2 optimizations
 311   --disable-avx            disable AVX optimizations
 312   --disable-fma4           disable FMA4 optimizations
 313   --disable-armv5te        disable armv5te optimizations
 314   --disable-armv6          disable armv6 optimizations
 315   --disable-armv6t2        disable armv6t2 optimizations
 316   --disable-vfp            disable VFP optimizations
 317   --disable-neon           disable NEON optimizations
 318   --disable-vis            disable VIS optimizations
 319   --disable-inline-asm     disable use of inline assembler
 320   --disable-yasm           disable use of yasm assembler
 321   --disable-mips32r2       disable MIPS32R2 optimizations
 322   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 323   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 324   --disable-mipsfpu        disable floating point MIPS optimizations
 325   --disable-fast-unaligned consider unaligned accesses slow
 326
 327 Developer options (useful when working on FFmpeg itself):
 328   --disable-debug          disable debugging symbols
 329   --enable-debug=LEVEL     set the debug level [$debuglevel]
 330   --disable-optimizations  disable compiler optimizations
 331   --enable-extra-warnings  enable more compiler warnings
 332   --disable-stripping      disable stripping of executables and shared libraries
 333   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 334                            2 causes a slowdown at runtime.
 335   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 336   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 337                            leaks and errors, using the specified valgrind binary.
 338                            Cannot be combined with --target-exec
 339   --enable-ftrapv          Trap arithmetic overflows
 340   --samples=PATH           location of test samples for FATE, if not set use
 341                            \$FATE_SAMPLES at make invocation time.
 342   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 343                            should be used only for debugging purposes)
 344   --enable-random          randomly enable/disable components
 345   --disable-random
 346   --enable-random=LIST     randomly enable/disable specific components or
 347   --disable-random=LIST    component groups. LIST is a comma-separated list
 348                            of NAME[:PROB] entries where NAME is a component
 349                            (group) and PROB the probability associated with
 350                            NAME (default 0.5).
 351   --random-seed=VALUE      seed value for --enable/disable-random
 352
 353 NOTE: Object files are built at the place where configure is launched.
 354 EOF
 355   exit 0
 356 }
 357
 358 quotes='""'
 359
 360 log(){
 361     echo "$@" >> $logfile
 362 }
 363
 364 log_file(){
 365     log BEGIN $1
 366     pr -n -t $1 >> $logfile
 367     log END $1
 368 }
 369
 370 echolog(){
 371     log "$@"
 372     echo "$@"
 373 }
 374
 375 warn(){
 376     log "WARNING: $*"
 377     WARNINGS="${WARNINGS}WARNING: $*\n"
 378 }
 379
 380 die(){
 381     echolog "$@"
 382     cat <<EOF
 383
 384 If you think configure made a mistake, make sure you are using the latest
 385 version from Git.  If the latest version fails, report the problem to the
 386 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 387 EOF
 388     if disabled logging; then
 389         cat <<EOF
 390 Rerun configure with logging enabled (do not use --disable-logging), and
 391 include the log this produces with your report.
 392 EOF
 393     else
 394         cat <<EOF
 395 Include the log file "$logfile" produced by configure as this will help
 396 solving the problem.
 397 EOF
 398     fi
 399     exit 1
 400 }
 401
 402 # Avoid locale weirdness, besides we really just want to translate ASCII.
 403 toupper(){
 404     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 405 }
 406
 407 tolower(){
 408     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 409 }
 410
 411 c_escape(){
 412     echo "$*" | sed 's/["\\]/\\\0/g'
 413 }
 414
 415 sh_quote(){
 416     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 417     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 418     echo "$v"
 419 }
 420
 421 cleanws(){
 422     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 423 }
 424
 425 filter(){
 426     pat=$1
 427     shift
 428     for v; do
 429         eval "case $v in $pat) echo $v ;; esac"
 430     done
 431 }
 432
 433 filter_out(){
 434     pat=$1
 435     shift
 436     for v; do
 437         eval "case $v in $pat) ;; *) echo $v ;; esac"
 438     done
 439 }
 440
 441 map(){
 442     m=$1
 443     shift
 444     for v; do eval $m; done
 445 }
 446
 447 add_suffix(){
 448     suffix=$1
 449     shift
 450     for v; do echo ${v}${suffix}; done
 451 }
 452
 453 set_all(){
 454     value=$1
 455     shift
 456     for var in $*; do
 457         eval $var=$value
 458     done
 459 }
 460
 461 set_weak(){
 462     value=$1
 463     shift
 464     for var; do
 465         eval : \${$var:=$value}
 466     done
 467 }
 468
 469 sanitize_var_name(){
 470     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 471 }
 472
 473 set_safe(){
 474     var=$1
 475     shift
 476     eval $(sanitize_var_name "$var")='$*'
 477 }
 478
 479 get_safe(){
 480     eval echo \$$(sanitize_var_name "$1")
 481 }
 482
 483 pushvar(){
 484     for pvar in $*; do
 485         eval level=\${${pvar}_level:=0}
 486         eval ${pvar}_${level}="\$$pvar"
 487         eval ${pvar}_level=$(($level+1))
 488     done
 489 }
 490
 491 popvar(){
 492     for pvar in $*; do
 493         eval level=\${${pvar}_level:-0}
 494         test $level = 0 && continue
 495         eval level=$(($level-1))
 496         eval $pvar="\${${pvar}_${level}}"
 497         eval ${pvar}_level=$level
 498         eval unset ${pvar}_${level}
 499     done
 500 }
 501
 502 enable(){
 503     set_all yes $*
 504 }
 505
 506 disable(){
 507     set_all no $*
 508 }
 509
 510 enable_weak(){
 511     set_weak yes $*
 512 }
 513
 514 disable_weak(){
 515     set_weak no $*
 516 }
 517
 518 enable_safe(){
 519     for var; do
 520         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 521     done
 522 }
 523
 524 disable_safe(){
 525     for var; do
 526         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 527     done
 528 }
 529
 530 do_enable_deep(){
 531     for var; do
 532         enabled $var && continue
 533         eval sel="\$${var}_select"
 534         eval sgs="\$${var}_suggest"
 535         pushvar var sgs
 536         enable_deep $sel
 537         popvar sgs
 538         enable_deep_weak $sgs
 539         popvar var
 540     done
 541 }
 542
 543 enable_deep(){
 544     do_enable_deep $*
 545     enable $*
 546 }
 547
 548 enable_deep_weak(){
 549     for var; do
 550         disabled $var && continue
 551         pushvar var
 552         do_enable_deep $var
 553         popvar var
 554         enable_weak $var
 555     done
 556 }
 557
 558 enabled(){
 559     test "${1#!}" = "$1" && op== || op=!=
 560     eval test "x\$${1#!}" $op "xyes"
 561 }
 562
 563 disabled(){
 564     test "${1#!}" = "$1" && op== || op=!=
 565     eval test "x\$${1#!}" $op "xno"
 566 }
 567
 568 enabled_all(){
 569     for opt; do
 570         enabled $opt || return 1
 571     done
 572 }
 573
 574 disabled_all(){
 575     for opt; do
 576         disabled $opt || return 1
 577     done
 578 }
 579
 580 enabled_any(){
 581     for opt; do
 582         enabled $opt && return 0
 583     done
 584 }
 585
 586 disabled_any(){
 587     for opt; do
 588         disabled $opt && return 0
 589     done
 590     return 1
 591 }
 592
 593 set_default(){
 594     for opt; do
 595         eval : \${$opt:=\$${opt}_default}
 596     done
 597 }
 598
 599 is_in(){
 600     value=$1
 601     shift
 602     for var in $*; do
 603         [ $var = $value ] && return 0
 604     done
 605     return 1
 606 }
 607
 608 do_check_deps(){
 609     for cfg; do
 610         cfg="${cfg#!}"
 611         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 612         disabled ${cfg}_checking && continue
 613         enable ${cfg}_checking
 614         append allopts $cfg
 615
 616         eval dep_all="\$${cfg}_deps"
 617         eval dep_any="\$${cfg}_deps_any"
 618         eval dep_sel="\$${cfg}_select"
 619         eval dep_sgs="\$${cfg}_suggest"
 620         eval dep_ifa="\$${cfg}_if"
 621         eval dep_ifn="\$${cfg}_if_any"
 622
 623         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 624         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 625         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 626
 627         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 628         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 629         enabled_all  $dep_all || disable $cfg
 630         enabled_any  $dep_any || disable $cfg
 631         disabled_any $dep_sel && disable $cfg
 632
 633         if enabled $cfg; then
 634             enable_deep $dep_sel
 635             enable_deep_weak $dep_sgs
 636         fi
 637
 638         disable ${cfg}_checking
 639     done
 640 }
 641
 642 check_deps(){
 643     unset allopts
 644
 645     do_check_deps "$@"
 646
 647     for cfg in $allopts; do
 648         enabled $cfg || continue
 649         eval dep_extralibs="\$${cfg}_extralibs"
 650         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 651     done
 652 }
 653
 654 print_config(){
 655     pfx=$1
 656     files=$2
 657     shift 2
 658     map 'eval echo "$v \${$v:-no}"' "$@" |
 659     awk "BEGIN { split(\"$files\", files) }
 660         {
 661             c = \"$pfx\" toupper(\$1);
 662             v = \$2;
 663             sub(/yes/, 1, v);
 664             sub(/no/,  0, v);
 665             for (f in files) {
 666                 file = files[f];
 667                 if (file ~ /\\.h\$/) {
 668                     printf(\"#define %s %d\\n\", c, v) >>file;
 669                 } else if (file ~ /\\.asm\$/) {
 670                     printf(\"%%define %s %d\\n\", c, v) >>file;
 671                 } else if (file ~ /\\.mak\$/) {
 672                     n = -v ? \"\" : \"!\";
 673                     printf(\"%s%s=yes\\n\", n, c) >>file;
 674                 } else if (file ~ /\\.texi\$/) {
 675                     pre = -v ? \"\" : \"@c \";
 676                     yesno = \$2;
 677                     c2 = tolower(c);
 678                     gsub(/_/, \"-\", c2);
 679                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 680                 }
 681             }
 682         }"
 683 }
 684
 685 print_enabled(){
 686     suf=$1
 687     shift
 688     for v; do
 689         enabled $v && printf "%s\n" ${v%$suf};
 690     done
 691 }
 692
 693 append(){
 694     var=$1
 695     shift
 696     eval "$var=\"\$$var $*\""
 697 }
 698
 699 prepend(){
 700     var=$1
 701     shift
 702     eval "$var=\"$* \$$var\""
 703 }
 704
 705 add_cppflags(){
 706     append CPPFLAGS "$@"
 707 }
 708
 709 add_cflags(){
 710     append CFLAGS $($cflags_filter "$@")
 711 }
 712
 713 add_cxxflags(){
 714     append CXXFLAGS $($cflags_filter "$@")
 715 }
 716
 717 add_asflags(){
 718     append ASFLAGS $($asflags_filter "$@")
 719 }
 720
 721 add_ldflags(){
 722     append LDFLAGS $($ldflags_filter "$@")
 723 }
 724
 725 add_extralibs(){
 726     prepend extralibs $($ldflags_filter "$@")
 727 }
 728
 729 add_host_cppflags(){
 730     append host_cppflags "$@"
 731 }
 732
 733 add_host_cflags(){
 734     append host_cflags $($host_cflags_filter "$@")
 735 }
 736
 737 add_host_ldflags(){
 738     append host_ldflags $($host_ldflags_filter "$@")
 739 }
 740
 741 add_compat(){
 742     append compat_objs $1
 743     shift
 744     map 'add_cppflags -D$v' "$@"
 745 }
 746
 747 check_cmd(){
 748     log "$@"
 749     "$@" >> $logfile 2>&1
 750 }
 751
 752 cc_o(){
 753     eval printf '%s\\n' $CC_O
 754 }
 755
 756 cc_e(){
 757     eval printf '%s\\n' $CC_E
 758 }
 759
 760 check_cc(){
 761     log check_cc "$@"
 762     cat > $TMPC
 763     log_file $TMPC
 764     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 765 }
 766
 767 check_cxx(){
 768     log check_cxx "$@"
 769     cat > $TMPCPP
 770     log_file $TMPCPP
 771     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 772 }
 773
 774 check_cpp(){
 775     log check_cpp "$@"
 776     cat > $TMPC
 777     log_file $TMPC
 778     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 779 }
 780
 781 as_o(){
 782     eval printf '%s\\n' $AS_O
 783 }
 784
 785 check_as(){
 786     log check_as "$@"
 787     cat > $TMPS
 788     log_file $TMPS
 789     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 790 }
 791
 792 check_inline_asm(){
 793     log check_inline_asm "$@"
 794     name="$1"
 795     code="$2"
 796     shift 2
 797     disable $name
 798     check_cc "$@" <<EOF && enable $name
 799 void foo(void){ __asm__ volatile($code); }
 800 EOF
 801 }
 802
 803 check_insn(){
 804     log check_insn "$@"
 805     check_inline_asm ${1}_inline "\"$2\""
 806     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 807 }
 808
 809 check_yasm(){
 810     log check_yasm "$@"
 811     echo "$1" > $TMPS
 812     log_file $TMPS
 813     shift 1
 814     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 815 }
 816
 817 ld_o(){
 818     eval printf '%s\\n' $LD_O
 819 }
 820
 821 check_ld(){
 822     log check_ld "$@"
 823     type=$1
 824     shift 1
 825     flags=$(filter_out '-l*|*.so' $@)
 826     libs=$(filter '-l*|*.so' $@)
 827     check_$type $($cflags_filter $flags) || return
 828     flags=$($ldflags_filter $flags)
 829     libs=$($ldflags_filter $libs)
 830     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 831 }
 832
 833 check_code(){
 834     log check_code "$@"
 835     check=$1
 836     headers=$2
 837     code=$3
 838     shift 3
 839     {
 840         for hdr in $headers; do
 841             echo "#include <$hdr>"
 842         done
 843         echo "int main(void) { $code; return 0; }"
 844     } | check_$check "$@"
 845 }
 846
 847 check_cppflags(){
 848     log check_cppflags "$@"
 849     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 850 int x;
 851 EOF
 852 }
 853
 854 check_cflags(){
 855     log check_cflags "$@"
 856     set -- $($cflags_filter "$@")
 857     check_cc "$@" <<EOF && append CFLAGS "$@"
 858 int x;
 859 EOF
 860 }
 861
 862 check_cxxflags(){
 863     log check_cxxflags "$@"
 864     set -- $($cflags_filter "$@")
 865     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 866 int x;
 867 EOF
 868 }
 869
 870 test_ldflags(){
 871     log test_ldflags "$@"
 872     check_ld "cc" "$@" <<EOF
 873 int main(void){ return 0; }
 874 EOF
 875 }
 876
 877 check_ldflags(){
 878     log check_ldflags "$@"
 879     test_ldflags "$@" && add_ldflags "$@"
 880 }
 881
 882 check_header(){
 883     log check_header "$@"
 884     header=$1
 885     shift
 886     disable_safe $header
 887     check_cpp "$@" <<EOF && enable_safe $header
 888 #include <$header>
 889 int x;
 890 EOF
 891 }
 892
 893 check_func(){
 894     log check_func "$@"
 895     func=$1
 896     shift
 897     disable $func
 898     check_ld "cc" "$@" <<EOF && enable $func
 899 extern int $func();
 900 int main(void){ $func(); }
 901 EOF
 902 }
 903
 904 check_mathfunc(){
 905     log check_mathfunc "$@"
 906     func=$1
 907     narg=$2
 908     shift 2
 909     test $narg = 2 && args="f, g" || args="f"
 910     disable $func
 911     check_ld "cc" "$@" <<EOF && enable $func
 912 #include <math.h>
 913 float foo(float f, float g) { return $func($args); }
 914 int main(void){ return (int) foo; }
 915 EOF
 916 }
 917
 918 check_func_headers(){
 919     log check_func_headers "$@"
 920     headers=$1
 921     funcs=$2
 922     shift 2
 923     {
 924         for hdr in $headers; do
 925             echo "#include <$hdr>"
 926         done
 927         for func in $funcs; do
 928             echo "long check_$func(void) { return (long) $func; }"
 929         done
 930         echo "int main(void) { return 0; }"
 931     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 932 }
 933
 934 check_class_headers_cpp(){
 935     log check_class_headers_cpp "$@"
 936     headers=$1
 937     classes=$2
 938     shift 2
 939     {
 940         for hdr in $headers; do
 941             echo "#include <$hdr>"
 942         done
 943         echo "int main(void) { "
 944         i=1
 945         for class in $classes; do
 946             echo "$class obj$i;"
 947             i=$(expr $i + 1)
 948         done
 949         echo "return 0; }"
 950     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 951 }
 952
 953 check_cpp_condition(){
 954     log check_cpp_condition "$@"
 955     header=$1
 956     condition=$2
 957     shift 2
 958     check_cpp "$@" <<EOF
 959 #include <$header>
 960 #if !($condition)
 961 #error "unsatisfied condition: $condition"
 962 #endif
 963 EOF
 964 }
 965
 966 check_lib(){
 967     log check_lib "$@"
 968     header="$1"
 969     func="$2"
 970     shift 2
 971     check_header $header && check_func $func "$@" && add_extralibs "$@"
 972 }
 973
 974 check_lib2(){
 975     log check_lib2 "$@"
 976     headers="$1"
 977     funcs="$2"
 978     shift 2
 979     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 980 }
 981
 982 check_lib_cpp(){
 983     log check_lib_cpp "$@"
 984     headers="$1"
 985     classes="$2"
 986     shift 2
 987     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 988 }
 989
 990 check_pkg_config(){
 991     log check_pkg_config "$@"
 992     pkg="$1"
 993     headers="$2"
 994     funcs="$3"
 995     shift 3
 996     $pkg_config --exists $pkg 2>/dev/null || return
 997     pkg_cflags=$($pkg_config --cflags $pkg)
 998     pkg_libs=$($pkg_config --libs $pkg)
 999     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1000         set_safe ${pkg}_cflags $pkg_cflags   &&
1001         set_safe ${pkg}_libs   $pkg_libs
1002 }
1003
1004 check_exec(){
1005     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1006 }
1007
1008 check_exec_crash(){
1009     code=$(cat)
1010
1011     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1012     # are safe but may not be available everywhere.  Thus we use
1013     # raise(SIGTERM) instead.  The check is run in a subshell so we
1014     # can redirect the "Terminated" message from the shell.  SIGBUS
1015     # is not defined by standard C so it is used conditionally.
1016
1017     (check_exec "$@") >> $logfile 2>&1 <<EOF
1018 #include <signal.h>
1019 static void sighandler(int sig){
1020     raise(SIGTERM);
1021 }
1022 int foo(void){
1023     $code
1024 }
1025 int (*func_ptr)(void) = foo;
1026 int main(void){
1027     signal(SIGILL, sighandler);
1028     signal(SIGFPE, sighandler);
1029     signal(SIGSEGV, sighandler);
1030 #ifdef SIGBUS
1031     signal(SIGBUS, sighandler);
1032 #endif
1033     return func_ptr();
1034 }
1035 EOF
1036 }
1037
1038 check_type(){
1039     log check_type "$@"
1040     headers=$1
1041     type=$2
1042     shift 2
1043     disable_safe "$type"
1044     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1045 }
1046
1047 check_struct(){
1048     log check_struct "$@"
1049     headers=$1
1050     struct=$2
1051     member=$3
1052     shift 3
1053     disable_safe "${struct}_${member}"
1054     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1055         enable_safe "${struct}_${member}"
1056 }
1057
1058 check_builtin(){
1059     log check_builtin "$@"
1060     name=$1
1061     headers=$2
1062     builtin=$3
1063     shift 3
1064     disable "$name"
1065     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1066 }
1067
1068 require(){
1069     name="$1"
1070     header="$2"
1071     func="$3"
1072     shift 3
1073     check_lib $header $func "$@" || die "ERROR: $name not found"
1074 }
1075
1076 require2(){
1077     name="$1"
1078     headers="$2"
1079     func="$3"
1080     shift 3
1081     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1082 }
1083
1084 require_cpp(){
1085     name="$1"
1086     headers="$2"
1087     classes="$3"
1088     shift 3
1089     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1090 }
1091
1092 require_pkg_config(){
1093     pkg="$1"
1094     check_pkg_config "$@" || die "ERROR: $pkg not found"
1095     add_cflags    $(get_safe ${pkg}_cflags)
1096     add_extralibs $(get_safe ${pkg}_libs)
1097 }
1098
1099 hostcc_o(){
1100     eval printf '%s\\n' $HOSTCC_O
1101 }
1102
1103 check_host_cc(){
1104     log check_host_cc "$@"
1105     cat > $TMPC
1106     log_file $TMPC
1107     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1108 }
1109
1110 check_host_cppflags(){
1111     log check_host_cppflags "$@"
1112     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1113 int x;
1114 EOF
1115 }
1116
1117 check_host_cflags(){
1118     log check_host_cflags "$@"
1119     set -- $($host_cflags_filter "$@")
1120     check_host_cc "$@" <<EOF && append host_cflags "$@"
1121 int x;
1122 EOF
1123 }
1124
1125 apply(){
1126     file=$1
1127     shift
1128     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1129 }
1130
1131 cp_if_changed(){
1132     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1133     mkdir -p "$(dirname $2)"
1134     $cp_f "$1" "$2"
1135 }
1136
1137 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1138 # system-dependent things.
1139
1140 COMPONENT_LIST="
1141     bsfs
1142     decoders
1143     demuxers
1144     encoders
1145     filters
1146     hwaccels
1147     indevs
1148     muxers
1149     outdevs
1150     parsers
1151     protocols
1152 "
1153
1154 EXTERNAL_LIBRARY_LIST="
1155     avisynth
1156     bzlib
1157     crystalhd
1158     fontconfig
1159     frei0r
1160     gnutls
1161     iconv
1162     libaacplus
1163     libass
1164     libbluray
1165     libcaca
1166     libcdio
1167     libcelt
1168     libdc1394
1169     libfaac
1170     libfdk_aac
1171     libflite
1172     libfreetype
1173     libgme
1174     libgsm
1175     libiec61883
1176     libilbc
1177     libmodplug
1178     libmp3lame
1179     libnut
1180     libopencore_amrnb
1181     libopencore_amrwb
1182     libopencv
1183     libopenjpeg
1184     libopus
1185     libpulse
1186     libquvi
1187     librtmp
1188     libschroedinger
1189     libshine
1190     libsoxr
1191     libspeex
1192     libstagefright_h264
1193     libtheora
1194     libtwolame
1195     libutvideo
1196     libv4l2
1197     libvidstab
1198     libvo_aacenc
1199     libvo_amrwbenc
1200     libvorbis
1201     libvpx
1202     libwavpack
1203     libx264
1204     libxavs
1205     libxvid
1206     libzmq
1207     openal
1208     opencl
1209     openssl
1210     x11grab
1211     zlib
1212 "
1213
1214 DOCUMENT_LIST="
1215     doc
1216     htmlpages
1217     manpages
1218     podpages
1219     txtpages
1220 "
1221
1222 HWACCEL_LIST="
1223     dxva2
1224     vaapi
1225     vda
1226     vdpau
1227 "
1228
1229 LIBRARY_LIST="
1230     avcodec
1231     avdevice
1232     avfilter
1233     avformat
1234     avresample
1235     avutil
1236     postproc
1237     swresample
1238     swscale
1239 "
1240
1241 PROGRAM_LIST="
1242     ffplay
1243     ffprobe
1244     ffserver
1245     ffmpeg
1246 "
1247
1248 CONFIG_LIST="
1249     $COMPONENT_LIST
1250     $DOCUMENT_LIST
1251     $EXTERNAL_LIBRARY_LIST
1252     $HWACCEL_LIST
1253     $LIBRARY_LIST
1254     $PROGRAM_LIST
1255     dct
1256     dwt
1257     error_resilience
1258     fast_unaligned
1259     fft
1260     ftrapv
1261     gpl
1262     gray
1263     hardcoded_tables
1264     incompatible_libav_abi
1265     incompatible_fork_abi
1266     lsp
1267     lzo
1268     mdct
1269     memalign_hack
1270     memory_poisoning
1271     network
1272     nonfree
1273     pic
1274     rdft
1275     runtime_cpudetect
1276     safe_bitstream_reader
1277     shared
1278     small
1279     sram
1280     static
1281     swscale_alpha
1282     thumb
1283     version3
1284     xmm_clobber_test
1285 "
1286
1287 THREADS_LIST='
1288     pthreads
1289     w32threads
1290     os2threads
1291 '
1292
1293 ATOMICS_LIST='
1294     atomics_gcc
1295     atomics_suncc
1296     atomics_win32
1297 '
1298
1299 ARCH_LIST='
1300     aarch64
1301     alpha
1302     arm
1303     avr32
1304     avr32_ap
1305     avr32_uc
1306     bfin
1307     ia64
1308     m68k
1309     mips
1310     mips64
1311     parisc
1312     ppc
1313     ppc64
1314     s390
1315     sh4
1316     sparc
1317     sparc64
1318     tilegx
1319     tilepro
1320     tomi
1321     x86
1322     x86_32
1323     x86_64
1324 '
1325
1326 ARCH_EXT_LIST_ARM='
1327     armv5te
1328     armv6
1329     armv6t2
1330     neon
1331     vfp
1332     vfpv3
1333 '
1334
1335 ARCH_EXT_LIST_X86='
1336     amd3dnow
1337     amd3dnowext
1338     avx
1339     fma4
1340     i686
1341     mmx
1342     mmxext
1343     sse
1344     sse2
1345     sse3
1346     sse4
1347     sse42
1348     ssse3
1349 '
1350
1351 ARCH_EXT_LIST="
1352     $ARCH_EXT_LIST_ARM
1353     $ARCH_EXT_LIST_X86
1354     altivec
1355     ppc4xx
1356     vis
1357     mipsfpu
1358     mips32r2
1359     mipsdspr1
1360     mipsdspr2
1361 "
1362
1363 HAVE_LIST_CMDLINE='
1364     inline_asm
1365     symver
1366     yasm
1367 '
1368
1369 HAVE_LIST_PUB='
1370     bigendian
1371     fast_unaligned
1372     incompatible_libav_abi
1373     incompatible_fork_abi
1374 '
1375
1376 MATH_FUNCS="
1377     atanf
1378     atan2f
1379     cbrt
1380     cbrtf
1381     cosf
1382     exp2
1383     exp2f
1384     expf
1385     isinf
1386     isnan
1387     ldexpf
1388     llrint
1389     llrintf
1390     log2
1391     log2f
1392     log10f
1393     lrint
1394     lrintf
1395     powf
1396     rint
1397     round
1398     roundf
1399     sinf
1400     trunc
1401     truncf
1402 "
1403
1404 HAVE_LIST="
1405     $ARCH_EXT_LIST
1406     $(add_suffix _external $ARCH_EXT_LIST)
1407     $(add_suffix _inline   $ARCH_EXT_LIST)
1408     $HAVE_LIST_CMDLINE
1409     $HAVE_LIST_PUB
1410     $THREADS_LIST
1411     $ATOMICS_LIST
1412     $MATH_FUNCS
1413     access
1414     aligned_malloc
1415     aligned_stack
1416     alsa_asoundlib_h
1417     altivec_h
1418     arpa_inet_h
1419     asm_mod_q
1420     asm_mod_y
1421     asm_types_h
1422     atomic_cas_ptr
1423     atomics_native
1424     attribute_may_alias
1425     attribute_packed
1426     cdio_paranoia_h
1427     cdio_paranoia_paranoia_h
1428     CL_cl_h
1429     clock_gettime
1430     closesocket
1431     CommandLineToArgvW
1432     cpunop
1433     CryptGenRandom
1434     dcbzl
1435     dev_bktr_ioctl_bt848_h
1436     dev_bktr_ioctl_meteor_h
1437     dev_ic_bt8xx_h
1438     dev_video_bktr_ioctl_bt848_h
1439     dev_video_meteor_ioctl_meteor_h
1440     direct_h
1441     dlfcn_h
1442     dlopen
1443     dos_paths
1444     dxva_h
1445     ebp_available
1446     ebx_available
1447     fast_64bit
1448     fast_clz
1449     fast_cmov
1450     fcntl
1451     fork
1452     getaddrinfo
1453     gethrtime
1454     getopt
1455     GetProcessAffinityMask
1456     GetProcessMemoryInfo
1457     GetProcessTimes
1458     GetSystemTimeAsFileTime
1459     getrusage
1460     getservbyport
1461     gettimeofday
1462     glob
1463     gnu_as
1464     gsm_h
1465     ibm_asm
1466     inet_aton
1467     io_h
1468     inline_asm_labels
1469     isatty
1470     jack_port_get_latency_range
1471     kbhit
1472     ldbrx
1473     libdc1394_1
1474     libdc1394_2
1475     local_aligned_16
1476     local_aligned_8
1477     localtime_r
1478     loongson
1479     lzo1x_999_compress
1480     machine_ioctl_bt848_h
1481     machine_ioctl_meteor_h
1482     machine_rw_barrier
1483     makeinfo
1484     malloc_h
1485     MapViewOfFile
1486     memalign
1487     MemoryBarrier
1488     mkstemp
1489     mm_empty
1490     mmap
1491     mprotect
1492     msvcrt
1493     nanosleep
1494     openjpeg_1_5_openjpeg_h
1495     PeekNamedPipe
1496     perl
1497     pod2man
1498     poll_h
1499     posix_memalign
1500     pragma_deprecated
1501     pthread_cancel
1502     rdtsc
1503     rsync_contimeout
1504     sarestart
1505     sched_getaffinity
1506     sdl
1507     SetConsoleTextAttribute
1508     setmode
1509     setrlimit
1510     Sleep
1511     sndio_h
1512     socklen_t
1513     soundcard_h
1514     strerror_r
1515     struct_addrinfo
1516     struct_group_source_req
1517     struct_ip_mreq_source
1518     struct_ipv6_mreq
1519     struct_pollfd
1520     struct_rusage_ru_maxrss
1521     struct_sctp_event_subscribe
1522     struct_sockaddr_in6
1523     struct_sockaddr_sa_len
1524     struct_sockaddr_storage
1525     struct_stat_st_mtim_tv_nsec
1526     struct_v4l2_frmivalenum_discrete
1527     symver_asm_label
1528     symver_gnu_asm
1529     sync_val_compare_and_swap
1530     sysconf
1531     sysctl
1532     sys_mman_h
1533     sys_param_h
1534     sys_resource_h
1535     sys_select_h
1536     sys_soundcard_h
1537     sys_time_h
1538     sys_un_h
1539     sys_videoio_h
1540     termios_h
1541     texi2html
1542     threads
1543     unistd_h
1544     usleep
1545     vfp_args
1546     VirtualAlloc
1547     windows_h
1548     winsock2_h
1549     xform_asm
1550     xmm_clobbers
1551 "
1552
1553 # options emitted with CONFIG_ prefix but not available on the command line
1554 CONFIG_EXTRA="
1555     aandcttables
1556     ac3dsp
1557     audio_frame_queue
1558     dsputil
1559     exif
1560     frame_thread_encoder
1561     gcrypt
1562     golomb
1563     gplv3
1564     h264chroma
1565     h264dsp
1566     h264pred
1567     h264qpel
1568     hpeldsp
1569     huffman
1570     lgplv3
1571     lpc
1572     mpegaudio
1573     mpegaudiodsp
1574     mpegvideo
1575     mpegvideoenc
1576     nettle
1577     rangecoder
1578     riffdec
1579     riffenc
1580     rtpdec
1581     rtpenc_chain
1582     sinewin
1583     videodsp
1584     vp3dsp
1585 "
1586
1587 CMDLINE_SELECT="
1588     $ARCH_EXT_LIST
1589     $CONFIG_LIST
1590     $HAVE_LIST_CMDLINE
1591     $THREADS_LIST
1592     asm
1593     cross_compile
1594     debug
1595     extra_warnings
1596     logging
1597     lto
1598     optimizations
1599     stripping
1600 "
1601
1602 PATHS_LIST='
1603     bindir
1604     datadir
1605     incdir
1606     libdir
1607     mandir
1608     prefix
1609     shlibdir
1610 '
1611
1612 CMDLINE_SET="
1613     $PATHS_LIST
1614     ar
1615     arch
1616     as
1617     assert_level
1618     build_suffix
1619     cc
1620     cpu
1621     cross_prefix
1622     cxx
1623     dep_cc
1624     extra_version
1625     host_cc
1626     host_cflags
1627     host_ld
1628     host_ldflags
1629     host_libs
1630     host_os
1631     install
1632     ld
1633     logfile
1634     malloc_prefix
1635     nm
1636     optflags
1637     pkg_config
1638     progs_suffix
1639     random_seed
1640     samples
1641     strip
1642     sysinclude
1643     sysroot
1644     target_exec
1645     target_os
1646     target_path
1647     target_samples
1648     toolchain
1649     valgrind
1650     yasmexe
1651 "
1652
1653 CMDLINE_APPEND="
1654     extra_cflags
1655     extra_cxxflags
1656     host_cppflags
1657 "
1658
1659 # code dependency declarations
1660
1661 # architecture extensions
1662
1663 armv5te_deps="arm"
1664 armv6_deps="arm"
1665 armv6t2_deps="arm"
1666 neon_deps="arm"
1667 vfp_deps="arm"
1668 vfpv3_deps="vfp"
1669
1670 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1671
1672 mipsfpu_deps="mips"
1673 mips32r2_deps="mips"
1674 mipsdspr1_deps="mips"
1675 mipsdspr2_deps="mips"
1676
1677 altivec_deps="ppc"
1678 ppc4xx_deps="ppc"
1679
1680 vis_deps="sparc"
1681
1682 cpunop_deps="i686"
1683 x86_64_select="i686"
1684 x86_64_suggest="fast_cmov"
1685
1686 amd3dnow_deps="mmx"
1687 amd3dnowext_deps="amd3dnow"
1688 mmx_deps="x86"
1689 mmxext_deps="mmx"
1690 sse_deps="mmxext"
1691 sse2_deps="sse"
1692 sse3_deps="sse2"
1693 ssse3_deps="sse3"
1694 sse4_deps="ssse3"
1695 sse42_deps="sse4"
1696 avx_deps="sse42"
1697 fma4_deps="avx"
1698
1699 mmx_external_deps="yasm"
1700 mmx_inline_deps="inline_asm"
1701 mmx_suggest="mmx_external mmx_inline"
1702
1703 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1704     eval dep=\$${ext}_deps
1705     eval ${ext}_external_deps='"${dep}_external"'
1706     eval ${ext}_inline_deps='"${dep}_inline"'
1707     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1708 done
1709
1710 aligned_stack_if_any="ppc x86"
1711 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1712 fast_clz_if_any="alpha avr32 mips ppc x86"
1713 fast_unaligned_if_any="ppc x86"
1714
1715 inline_asm_deps="!tms470"
1716 need_memalign="altivec neon sse"
1717
1718 symver_if_any="symver_asm_label symver_gnu_asm"
1719
1720 log2_deps="!msvcrt"
1721
1722 # subsystems
1723 dct_select="rdft"
1724 error_resilience_select="dsputil"
1725 frame_thread_encoder_deps="encoders threads"
1726 lpc_select="dsputil"
1727 mdct_select="fft"
1728 rdft_select="fft"
1729 mpegaudio_select="mpegaudiodsp"
1730 mpegaudiodsp_select="dct"
1731 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1732 mpegvideoenc_select="mpegvideo"
1733
1734 # decoders / encoders
1735 aac_decoder_select="mdct sinewin"
1736 aac_encoder_select="audio_frame_queue mdct sinewin"
1737 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1738 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1739 ac3_encoder_select="mdct ac3dsp dsputil"
1740 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1741 aic_decoder_select="dsputil golomb"
1742 alac_encoder_select="lpc"
1743 als_decoder_select="dsputil"
1744 amrnb_decoder_select="lsp"
1745 amrwb_decoder_select="lsp"
1746 amv_decoder_select="dsputil hpeldsp exif"
1747 amv_encoder_select="aandcttables"
1748 ape_decoder_select="dsputil"
1749 asv1_decoder_select="dsputil"
1750 asv1_encoder_select="dsputil"
1751 asv2_decoder_select="dsputil"
1752 asv2_encoder_select="dsputil"
1753 atrac1_decoder_select="mdct sinewin"
1754 atrac3_decoder_select="mdct"
1755 avrn_decoder_select="exif"
1756 bink_decoder_select="dsputil hpeldsp"
1757 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1758 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1759 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1760 cllc_decoder_select="dsputil"
1761 comfortnoise_encoder_select="lpc"
1762 cook_decoder_select="dsputil mdct sinewin"
1763 cscd_decoder_select="lzo"
1764 cscd_decoder_suggest="zlib"
1765 dca_decoder_select="mdct"
1766 dirac_decoder_select="dsputil dwt golomb videodsp"
1767 dnxhd_decoder_select="dsputil"
1768 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1769 dvvideo_decoder_select="dsputil"
1770 dvvideo_encoder_select="dsputil"
1771 dxa_decoder_deps="zlib"
1772 eac3_decoder_select="ac3_decoder"
1773 eac3_encoder_select="ac3_encoder"
1774 eamad_decoder_select="aandcttables dsputil mpegvideo"
1775 eatgq_decoder_select="aandcttables"
1776 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1777 exr_decoder_deps="zlib"
1778 ffv1_decoder_select="dsputil golomb rangecoder"
1779 ffv1_encoder_select="dsputil rangecoder"
1780 ffvhuff_decoder_select="dsputil"
1781 ffvhuff_encoder_select="dsputil huffman"
1782 flac_decoder_select="golomb"
1783 flac_encoder_select="dsputil golomb lpc"
1784 flashsv_decoder_deps="zlib"
1785 flashsv_encoder_deps="zlib"
1786 flashsv2_encoder_deps="zlib"
1787 flashsv2_decoder_deps="zlib"
1788 flv_decoder_select="h263_decoder"
1789 flv_encoder_select="h263_encoder"
1790 fourxm_decoder_select="dsputil"
1791 fraps_decoder_select="dsputil huffman"
1792 g2m_decoder_deps="zlib"
1793 g2m_decoder_select="dsputil"
1794 g729_decoder_select="dsputil"
1795 h261_decoder_select="error_resilience mpegvideo"
1796 h261_encoder_select="aandcttables mpegvideoenc"
1797 h263_decoder_select="error_resilience h263_parser mpegvideo"
1798 h263_encoder_select="aandcttables mpegvideoenc"
1799 h263i_decoder_select="h263_decoder"
1800 h263p_encoder_select="h263_encoder"
1801 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1802 h264_decoder_suggest="error_resilience"
1803 huffyuv_decoder_select="dsputil"
1804 huffyuv_encoder_select="dsputil huffman"
1805 iac_decoder_select="dsputil fft mdct sinewin"
1806 imc_decoder_select="dsputil fft mdct sinewin"
1807 indeo3_decoder_select="hpeldsp"
1808 interplay_video_decoder_select="hpeldsp"
1809 jpegls_decoder_select="dsputil golomb hpeldsp exif"
1810 jpegls_encoder_select="golomb"
1811 jv_decoder_select="dsputil"
1812 lagarith_decoder_select="dsputil"
1813 ljpeg_encoder_select="aandcttables mpegvideoenc"
1814 loco_decoder_select="golomb"
1815 mdec_decoder_select="dsputil error_resilience mpegvideo"
1816 metasound_decoder_select="lsp mdct sinewin"
1817 mimic_decoder_select="dsputil hpeldsp"
1818 mjpeg_decoder_select="dsputil hpeldsp exif"
1819 mjpegb_decoder_select="dsputil hpeldsp exif"
1820 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1821 mlp_decoder_select="dsputil mlp_parser"
1822 motionpixels_decoder_select="dsputil"
1823 mp1_decoder_select="mpegaudio"
1824 mp1float_decoder_select="mpegaudio"
1825 mp2_decoder_select="mpegaudio"
1826 mp2float_decoder_select="mpegaudio"
1827 mp3_decoder_select="mpegaudio"
1828 mp3adu_decoder_select="mpegaudio"
1829 mp3adufloat_decoder_select="mpegaudio"
1830 mp3float_decoder_select="mpegaudio"
1831 mp3on4_decoder_select="mpegaudio"
1832 mp3on4float_decoder_select="mpegaudio"
1833 mpc7_decoder_select="dsputil mpegaudiodsp"
1834 mpc8_decoder_select="dsputil mpegaudiodsp"
1835 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1836 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1837 mpeg1video_decoder_select="error_resilience mpegvideo"
1838 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1839 mpeg2video_decoder_select="error_resilience mpegvideo"
1840 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1841 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1842 mpeg4_encoder_select="h263_encoder"
1843 msmpeg4v1_decoder_select="h263_decoder"
1844 msmpeg4v2_decoder_select="h263_decoder"
1845 msmpeg4v2_encoder_select="h263_encoder"
1846 msmpeg4v3_decoder_select="h263_decoder"
1847 msmpeg4v3_encoder_select="h263_encoder"
1848 mss2_decoder_select="error_resilience vc1_decoder"
1849 mxpeg_decoder_select="dsputil hpeldsp exif"
1850 nellymoser_decoder_select="mdct sinewin"
1851 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1852 nuv_decoder_select="dsputil lzo"
1853 png_decoder_deps="zlib"
1854 png_encoder_deps="zlib"
1855 png_encoder_select="dsputil"
1856 prores_decoder_select="dsputil"
1857 prores_encoder_select="dsputil"
1858 qcelp_decoder_select="lsp"
1859 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1860 ra_144_encoder_select="audio_frame_queue lpc"
1861 ralf_decoder_select="golomb"
1862 rtjpeg_decoder_select="dsputil"
1863 rv10_decoder_select="error_resilience h263_decoder"
1864 rv10_encoder_select="h263_encoder"
1865 rv20_decoder_select="error_resilience h263_decoder"
1866 rv20_encoder_select="h263_encoder"
1867 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1868 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1869 shorten_decoder_select="golomb"
1870 sipr_decoder_select="lsp"
1871 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1872 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1873 sonic_decoder_select="golomb"
1874 sonic_encoder_select="golomb"
1875 sonic_ls_encoder_select="golomb"
1876 sp5x_decoder_select="dsputil hpeldsp exif"
1877 svq1_decoder_select="hpeldsp"
1878 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1879 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1880 svq3_decoder_suggest="error_resilience zlib"
1881 tak_decoder_select="dsputil"
1882 theora_decoder_select="vp3_decoder"
1883 tiff_decoder_suggest="zlib"
1884 tiff_encoder_suggest="zlib"
1885 thp_decoder_select="dsputil hpeldsp exif"
1886 truehd_decoder_select="mlp_parser"
1887 truemotion2_decoder_select="dsputil"
1888 truespeech_decoder_select="dsputil"
1889 tscc_decoder_deps="zlib"
1890 twinvq_decoder_select="mdct lsp sinewin"
1891 utvideo_decoder_select="dsputil"
1892 utvideo_encoder_select="dsputil huffman"
1893 vble_decoder_select="dsputil"
1894 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1895 vc1image_decoder_select="vc1_decoder"
1896 vorbis_decoder_select="mdct"
1897 vorbis_encoder_select="mdct"
1898 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1899 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1900 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1901 vp6a_decoder_select="vp6_decoder"
1902 vp6f_decoder_select="vp6_decoder"
1903 vp8_decoder_select="h264pred videodsp"
1904 webp_decoder_select="vp8_decoder"
1905 wmapro_decoder_select="mdct sinewin"
1906 wmav1_decoder_select="mdct sinewin"
1907 wmav1_encoder_select="mdct sinewin"
1908 wmav2_decoder_select="mdct sinewin"
1909 wmav2_encoder_select="mdct sinewin"
1910 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1911 wmv1_decoder_select="h263_decoder"
1912 wmv1_encoder_select="h263_encoder"
1913 wmv2_decoder_select="h263_decoder videodsp"
1914 wmv2_encoder_select="h263_encoder"
1915 wmv3_decoder_select="vc1_decoder"
1916 wmv3image_decoder_select="wmv3_decoder"
1917 zerocodec_decoder_deps="zlib"
1918 zlib_decoder_deps="zlib"
1919 zlib_encoder_deps="zlib"
1920 zmbv_decoder_deps="zlib"
1921 zmbv_encoder_deps="zlib"
1922
1923 # hardware accelerators
1924 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1925 dxva2_deps="dxva2api_h"
1926 vaapi_deps="va_va_h"
1927 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1928 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1929 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1930
1931 h263_vaapi_hwaccel_deps="vaapi"
1932 h263_vaapi_hwaccel_select="h263_decoder"
1933 h263_vdpau_hwaccel_deps="vdpau"
1934 h263_vdpau_hwaccel_select="h263_decoder"
1935 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1936 h264_dxva2_hwaccel_deps="dxva2"
1937 h264_dxva2_hwaccel_select="h264_decoder"
1938 h264_vaapi_hwaccel_deps="vaapi"
1939 h264_vaapi_hwaccel_select="h264_decoder"
1940 h264_vda_decoder_deps="vda"
1941 h264_vda_decoder_select="h264_decoder"
1942 h264_vda_hwaccel_deps="vda"
1943 h264_vda_hwaccel_select="h264_decoder"
1944 h264_vdpau_decoder_deps="vdpau"
1945 h264_vdpau_decoder_select="h264_decoder"
1946 h264_vdpau_hwaccel_deps="vdpau"
1947 h264_vdpau_hwaccel_select="h264_decoder"
1948 mpeg_vdpau_decoder_deps="vdpau"
1949 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1950 mpeg1_vdpau_decoder_deps="vdpau"
1951 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1952 mpeg1_vdpau_hwaccel_deps="vdpau"
1953 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1954 mpeg2_crystalhd_decoder_select="crystalhd"
1955 mpeg2_dxva2_hwaccel_deps="dxva2"
1956 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1957 mpeg2_vaapi_hwaccel_deps="vaapi"
1958 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1959 mpeg2_vdpau_hwaccel_deps="vdpau"
1960 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1961 mpeg4_crystalhd_decoder_select="crystalhd"
1962 mpeg4_vaapi_hwaccel_deps="vaapi"
1963 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1964 mpeg4_vdpau_decoder_deps="vdpau"
1965 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1966 mpeg4_vdpau_hwaccel_deps="vdpau"
1967 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1968 msmpeg4_crystalhd_decoder_select="crystalhd"
1969 vc1_crystalhd_decoder_select="crystalhd"
1970 vc1_dxva2_hwaccel_deps="dxva2"
1971 vc1_dxva2_hwaccel_select="vc1_decoder"
1972 vc1_vaapi_hwaccel_deps="vaapi"
1973 vc1_vaapi_hwaccel_select="vc1_decoder"
1974 vc1_vdpau_decoder_deps="vdpau"
1975 vc1_vdpau_decoder_select="vc1_decoder"
1976 vc1_vdpau_hwaccel_deps="vdpau"
1977 vc1_vdpau_hwaccel_select="vc1_decoder"
1978 wmv3_crystalhd_decoder_select="crystalhd"
1979 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1980 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1981 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1982 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1983
1984 # parsers
1985 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1986 mpeg4video_parser_select="error_resilience mpegvideo"
1987 mpegvideo_parser_select="error_resilience mpegvideo"
1988 vc1_parser_select="mpegvideo"
1989
1990 # external libraries
1991 libaacplus_encoder_deps="libaacplus"
1992 libcelt_decoder_deps="libcelt"
1993 libfaac_encoder_deps="libfaac"
1994 libfaac_encoder_select="audio_frame_queue"
1995 libfdk_aac_decoder_deps="libfdk_aac"
1996 libfdk_aac_encoder_deps="libfdk_aac"
1997 libfdk_aac_encoder_select="audio_frame_queue"
1998 libgme_demuxer_deps="libgme"
1999 libgsm_decoder_deps="libgsm"
2000 libgsm_encoder_deps="libgsm"
2001 libgsm_ms_decoder_deps="libgsm"
2002 libgsm_ms_encoder_deps="libgsm"
2003 libilbc_decoder_deps="libilbc"
2004 libilbc_encoder_deps="libilbc"
2005 libmodplug_demuxer_deps="libmodplug"
2006 libmp3lame_encoder_deps="libmp3lame"
2007 libmp3lame_encoder_select="audio_frame_queue"
2008 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2009 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2010 libopencore_amrnb_encoder_select="audio_frame_queue"
2011 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2012 libopenjpeg_decoder_deps="libopenjpeg"
2013 libopenjpeg_encoder_deps="libopenjpeg"
2014 libopus_decoder_deps="libopus"
2015 libopus_encoder_deps="libopus"
2016 libopus_encoder_select="audio_frame_queue"
2017 libquvi_demuxer_deps="libquvi"
2018 libschroedinger_decoder_deps="libschroedinger"
2019 libschroedinger_encoder_deps="libschroedinger"
2020 libshine_encoder_deps="libshine"
2021 libshine_encoder_select="audio_frame_queue"
2022 libspeex_decoder_deps="libspeex"
2023 libspeex_encoder_deps="libspeex"
2024 libspeex_encoder_select="audio_frame_queue"
2025 libstagefright_h264_decoder_deps="libstagefright_h264"
2026 libtheora_encoder_deps="libtheora"
2027 libtwolame_encoder_deps="libtwolame"
2028 libvo_aacenc_encoder_deps="libvo_aacenc"
2029 libvo_aacenc_encoder_select="audio_frame_queue"
2030 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2031 libvorbis_decoder_deps="libvorbis"
2032 libvorbis_encoder_deps="libvorbis"
2033 libvorbis_encoder_select="audio_frame_queue"
2034 libvpx_vp8_decoder_deps="libvpx"
2035 libvpx_vp8_encoder_deps="libvpx"
2036 libvpx_vp9_decoder_deps="libvpx"
2037 libvpx_vp9_encoder_deps="libvpx"
2038 libwavpack_encoder_deps="libwavpack"
2039 libx264_encoder_deps="libx264"
2040 libx264rgb_encoder_deps="libx264"
2041 libxavs_encoder_deps="libxavs"
2042 libxvid_encoder_deps="libxvid"
2043 libutvideo_decoder_deps="libutvideo"
2044 libutvideo_encoder_deps="libutvideo"
2045
2046 # demuxers / muxers
2047 ac3_demuxer_select="ac3_parser"
2048 asf_demuxer_select="riffdec"
2049 asf_muxer_select="riffenc"
2050 asf_stream_muxer_select="asf_muxer"
2051 avi_demuxer_select="riffdec"
2052 avi_muxer_select="riffenc"
2053 avisynth_demuxer_deps="avisynth"
2054 avisynth_demuxer_select="riffdec"
2055 caf_demuxer_select="riffdec"
2056 dirac_demuxer_select="dirac_parser"
2057 dts_demuxer_select="dca_parser"
2058 dtshd_demuxer_select="dca_parser"
2059 dxa_demuxer_select="riffdec"
2060 eac3_demuxer_select="ac3_parser"
2061 f4v_muxer_select="mov_muxer"
2062 flac_demuxer_select="flac_parser"
2063 hls_muxer_select="mpegts_muxer"
2064 ipod_muxer_select="mov_muxer"
2065 ismv_muxer_select="mov_muxer"
2066 libnut_demuxer_deps="libnut"
2067 libnut_muxer_deps="libnut"
2068 matroska_audio_muxer_select="matroska_muxer"
2069 matroska_demuxer_select="riffdec"
2070 matroska_demuxer_suggest="bzlib lzo zlib"
2071 matroska_muxer_select="riffenc"
2072 mmf_muxer_select="riffenc"
2073 mov_demuxer_select="riffdec"
2074 mov_demuxer_suggest="zlib"
2075 mov_muxer_select="riffenc rtpenc_chain"
2076 mp3_demuxer_select="mpegaudio_parser"
2077 mp4_muxer_select="mov_muxer"
2078 mpegts_muxer_select="adts_muxer latm_muxer"
2079 mpegtsraw_demuxer_select="mpegts_demuxer"
2080 mxf_d10_muxer_select="mxf_muxer"
2081 nut_muxer_select="riffenc"
2082 nuv_demuxer_select="riffdec"
2083 ogg_demuxer_select="golomb"
2084 psp_muxer_select="mov_muxer"
2085 rtp_demuxer_select="sdp_demuxer"
2086 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2087 rtsp_demuxer_select="http_protocol rtpdec"
2088 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2089 sap_demuxer_select="sdp_demuxer"
2090 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2091 sdp_demuxer_select="rtpdec"
2092 smoothstreaming_muxer_select="ismv_muxer"
2093 spdif_muxer_select="aac_parser"
2094 tak_demuxer_select="tak_parser"
2095 tg2_muxer_select="mov_muxer"
2096 tgp_muxer_select="mov_muxer"
2097 vobsub_demuxer_select="mpegps_demuxer"
2098 w64_demuxer_select="wav_demuxer"
2099 w64_muxer_select="wav_muxer"
2100 wav_demuxer_select="riffdec"
2101 wav_muxer_select="riffenc"
2102 webm_muxer_select="riffenc"
2103 wtv_demuxer_select="riffdec"
2104 xmv_demuxer_select="riffdec"
2105 xwma_demuxer_select="riffdec"
2106
2107 # indevs / outdevs
2108 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2109 alsa_outdev_deps="alsa_asoundlib_h"
2110 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2111 caca_outdev_deps="libcaca"
2112 dshow_indev_deps="IBaseFilter"
2113 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2114 dv1394_indev_deps="dv1394"
2115 dv1394_indev_select="dv_demuxer"
2116 fbdev_indev_deps="linux_fb_h"
2117 iec61883_indev_deps="libiec61883"
2118 jack_indev_deps="jack_jack_h sem_timedwait"
2119 lavfi_indev_deps="avfilter"
2120 libcdio_indev_deps="libcdio"
2121 libdc1394_indev_deps="libdc1394"
2122 libv4l2_indev_deps="libv4l2"
2123 openal_indev_deps="openal"
2124 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2125 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2126 pulse_indev_deps="libpulse"
2127 sdl_outdev_deps="sdl"
2128 sndio_indev_deps="sndio_h"
2129 sndio_outdev_deps="sndio_h"
2130 v4l_indev_deps="linux_videodev_h"
2131 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2132 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2133 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2134 vfwcap_indev_extralibs="-lavicap32"
2135 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2136 xv_outdev_extralibs="-lXv -lX11 -lXext"
2137 x11grab_indev_deps="x11grab"
2138
2139 # protocols
2140 bluray_protocol_deps="libbluray"
2141 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2142 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2143 ffrtmpcrypt_protocol_select="tcp_protocol"
2144 ffrtmphttp_protocol_deps="!librtmp_protocol"
2145 ffrtmphttp_protocol_select="http_protocol"
2146 ftp_protocol_select="tcp_protocol"
2147 gopher_protocol_select="network"
2148 httpproxy_protocol_select="tcp_protocol"
2149 http_protocol_select="tcp_protocol"
2150 https_protocol_select="tls_protocol"
2151 librtmp_protocol_deps="librtmp"
2152 librtmpe_protocol_deps="librtmp"
2153 librtmps_protocol_deps="librtmp"
2154 librtmpt_protocol_deps="librtmp"
2155 librtmpte_protocol_deps="librtmp"
2156 mmsh_protocol_select="http_protocol"
2157 mmst_protocol_select="network"
2158 rtmp_protocol_deps="!librtmp_protocol"
2159 rtmp_protocol_select="tcp_protocol"
2160 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2161 rtmps_protocol_deps="!librtmp_protocol"
2162 rtmps_protocol_select="tls_protocol"
2163 rtmpt_protocol_select="ffrtmphttp_protocol"
2164 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2165 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2166 rtp_protocol_select="udp_protocol"
2167 sctp_protocol_deps="struct_sctp_event_subscribe"
2168 sctp_protocol_select="network"
2169 srtp_protocol_select="rtp_protocol"
2170 tcp_protocol_select="network"
2171 tls_protocol_deps_any="openssl gnutls"
2172 tls_protocol_select="tcp_protocol"
2173 udp_protocol_select="network"
2174 unix_protocol_deps="sys_un_h"
2175 unix_protocol_select="network"
2176
2177 # filters
2178 aconvert_filter_deps="swresample"
2179 amovie_filter_deps="avcodec avformat"
2180 aresample_filter_deps="swresample"
2181 ass_filter_deps="libass"
2182 asyncts_filter_deps="avresample"
2183 atempo_filter_deps="avcodec rdft"
2184 azmq_filter_deps="libzmq"
2185 blackframe_filter_deps="gpl"
2186 boxblur_filter_deps="gpl"
2187 colormatrix_filter_deps="gpl"
2188 cropdetect_filter_deps="gpl"
2189 dctdnoiz_filter_deps="avcodec fft"
2190 delogo_filter_deps="gpl"
2191 deshake_filter_deps="avcodec"
2192 deshake_filter_select="dsputil"
2193 drawtext_filter_deps="libfreetype"
2194 ebur128_filter_deps="gpl"
2195 flite_filter_deps="libflite"
2196 frei0r_filter_deps="frei0r dlopen"
2197 frei0r_filter_extralibs='$ldl'
2198 frei0r_src_filter_deps="frei0r dlopen"
2199 frei0r_src_filter_extralibs='$ldl'
2200 geq_filter_deps="gpl"
2201 histeq_filter_deps="gpl"
2202 hqdn3d_filter_deps="gpl"
2203 hue_filter_deps="gpl"
2204 interlace_filter_deps="gpl"
2205 kerndeint_filter_deps="gpl"
2206 mcdeint_filter_deps="avcodec gpl"
2207 movie_filter_deps="avcodec avformat"
2208 mp_filter_deps="gpl avcodec swscale inline_asm"
2209 mpdecimate_filter_deps="gpl avcodec"
2210 mptestsrc_filter_deps="gpl"
2211 negate_filter_deps="lut_filter"
2212 noise_filter_deps="gpl"
2213 perspective_filter_deps="gpl"
2214 resample_filter_deps="avresample"
2215 ocv_filter_deps="libopencv"
2216 owdenoise_filter_deps="gpl"
2217 pan_filter_deps="swresample"
2218 pp_filter_deps="gpl postproc"
2219 removelogo_filter_deps="avcodec avformat swscale"
2220 sab_filter_deps="gpl swscale"
2221 scale_filter_deps="swscale"
2222 smartblur_filter_deps="gpl swscale"
2223 showspectrum_filter_deps="avcodec rdft"
2224 spp_filter_deps="gpl avcodec fft"
2225 stereo3d_filter_deps="gpl"
2226 subtitles_filter_deps="avformat avcodec libass"
2227 super2xsai_filter_deps="gpl"
2228 tinterlace_filter_deps="gpl"
2229 vidstabdetect_filter_deps="libvidstab"
2230 vidstabtransform_filter_deps="libvidstab"
2231 yadif_filter_deps="gpl"
2232 pixfmts_super2xsai_test_deps="super2xsai_filter"
2233 tinterlace_merge_test_deps="tinterlace_filter"
2234 tinterlace_pad_test_deps="tinterlace_filter"
2235 zmq_filter_deps="libzmq"
2236
2237 # libraries
2238 avcodec_deps="avutil"
2239 avdevice_deps="avutil avcodec avformat"
2240 avfilter_deps="avutil"
2241 avformat_deps="avutil avcodec"
2242 avresample_deps="avutil"
2243 postproc_deps="avutil gpl"
2244 swscale_deps="avutil"
2245
2246 # programs
2247 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2248 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2249                null_filter
2250                setpts_filter trim_filter"
2251 ffplay_deps="avcodec avformat swscale swresample sdl"
2252 ffplay_select="rdft crop_filter"
2253 ffprobe_deps="avcodec avformat"
2254 ffserver_deps="avformat fork sarestart"
2255 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2256 ffserver_extralibs='$ldl'
2257
2258 # documentation
2259 podpages_deps="perl"
2260 manpages_deps="perl pod2man"
2261 htmlpages_deps="texi2html"
2262 txtpages_deps="makeinfo"
2263 doc_deps_any="manpages htmlpages podpages txtpages"
2264
2265 # default parameters
2266
2267 logfile="config.log"
2268
2269 # installation paths
2270 prefix_default="/usr/local"
2271 bindir_default='${prefix}/bin'
2272 datadir_default='${prefix}/share/ffmpeg'
2273 incdir_default='${prefix}/include'
2274 libdir_default='${prefix}/lib'
2275 mandir_default='${prefix}/share/man'
2276 shlibdir_default="$libdir_default"
2277
2278 # toolchain
2279 ar_default="ar"
2280 cc_default="gcc"
2281 cxx_default="g++"
2282 host_cc_default="gcc"
2283 cp_f="cp -f"
2284 install="install"
2285 ln_s="ln -s -f"
2286 nm_default="nm -g"
2287 objformat="elf"
2288 pkg_config_default=pkg-config
2289 ranlib="ranlib"
2290 strip_default="strip"
2291 yasmexe_default="yasm"
2292
2293 nogas=":"
2294
2295 # machine
2296 arch_default=$(uname -m)
2297 cpu="generic"
2298
2299 # OS
2300 target_os_default=$(tolower $(uname -s))
2301 host_os=$target_os_default
2302
2303 # configurable options
2304 enable $PROGRAM_LIST
2305 enable $DOCUMENT_LIST
2306 enable $(filter_out avresample $LIBRARY_LIST)
2307 enable stripping
2308
2309 enable asm
2310 enable debug
2311 enable doc
2312 enable optimizations
2313 enable runtime_cpudetect
2314 enable safe_bitstream_reader
2315 enable static
2316 enable swscale_alpha
2317
2318 # Enable hwaccels by default.
2319 enable dxva2 vaapi vdpau
2320
2321 # build settings
2322 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2323 LIBPREF="lib"
2324 LIBSUF=".a"
2325 FULLNAME='$(NAME)$(BUILDSUF)'
2326 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2327 SLIBPREF="lib"
2328 SLIBSUF=".so"
2329 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2330 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2331 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2332 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2333 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2334 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2335
2336 asflags_filter=echo
2337 cflags_filter=echo
2338 ldflags_filter=echo
2339
2340 AS_C='-c'
2341 AS_O='-o $@'
2342 CC_C='-c'
2343 CC_E='-E -o $@'
2344 CC_O='-o $@'
2345 CXX_C='-c'
2346 CXX_O='-o $@'
2347 LD_O='-o $@'
2348 LD_LIB='-l%'
2349 LD_PATH='-L'
2350 HOSTCC_C='-c'
2351 HOSTCC_O='-o $@'
2352 HOSTLD_O='-o $@'
2353
2354 host_cflags='-O3 -g'
2355 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2356 host_libs='-lm'
2357 host_cflags_filter=echo
2358 host_ldflags_filter=echo
2359
2360 target_path='$(CURDIR)'
2361
2362 # since the object filename is not given with the -MM flag, the compiler
2363 # is only able to print the basename, and we must add the path ourselves
2364 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2365 DEPFLAGS='-MM'
2366
2367 # find source path
2368 if test -f configure; then
2369     source_path=.
2370 else
2371     source_path=$(cd $(dirname "$0"); pwd)
2372     echo "$source_path" | grep -q '[[:blank:]]' &&
2373         die "Out of tree builds are impossible with whitespace in source path."
2374     test -e "$source_path/config.h" &&
2375         die "Out of tree builds are impossible with config.h in source dir."
2376 fi
2377
2378 for v in "$@"; do
2379     r=${v#*=}
2380     l=${v%"$r"}
2381     r=$(sh_quote "$r")
2382     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2383 done
2384
2385 find_things(){
2386     thing=$1
2387     pattern=$2
2388     file=$source_path/$3
2389     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2390 }
2391
2392 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2393 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2394 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2395 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2396 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2397 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2398 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2399 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2400 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2401 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2402 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2403
2404 ALL_COMPONENTS="
2405     $BSF_LIST
2406     $DECODER_LIST
2407     $DEMUXER_LIST
2408     $ENCODER_LIST
2409     $FILTER_LIST
2410     $HWACCEL_LIST
2411     $INDEV_LIST
2412     $MUXER_LIST
2413     $OUTDEV_LIST
2414     $PARSER_LIST
2415     $PROTOCOL_LIST
2416 "
2417
2418 for n in $COMPONENT_LIST; do
2419     v=$(toupper ${n%s})_LIST
2420     eval enable \$$v
2421     eval ${n}_if_any="\$$v"
2422 done
2423
2424 enable $ARCH_EXT_LIST
2425
2426 die_unknown(){
2427     echo "Unknown option \"$1\"."
2428     echo "See $0 --help for available options."
2429     exit 1
2430 }
2431
2432 print_3_columns() {
2433     cat | tr ' ' '\n' | sort | pr -r -3 -t
2434 }
2435
2436 show_list() {
2437     suffix=_$1
2438     shift
2439     echo $* | sed s/$suffix//g | print_3_columns
2440     exit 0
2441 }
2442
2443 rand_list(){
2444     IFS=', '
2445     set -- $*
2446     unset IFS
2447     for thing; do
2448         comp=${thing%:*}
2449         prob=${thing#$comp}
2450         prob=${prob#:}
2451         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2452         echo "prob ${prob:-0.5}"
2453         printf '%s\n' $comp
2454     done
2455 }
2456
2457 do_random(){
2458     action=$1
2459     shift
2460     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2461     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2462 }
2463
2464 for opt do
2465     optval="${opt#*=}"
2466     case "$opt" in
2467         --extra-ldflags=*)
2468             add_ldflags $optval
2469         ;;
2470         --extra-libs=*)
2471             add_extralibs $optval
2472         ;;
2473         --disable-devices)
2474             disable $INDEV_LIST $OUTDEV_LIST
2475         ;;
2476         --enable-debug=*)
2477             debuglevel="$optval"
2478         ;;
2479         --disable-programs)
2480             disable $PROGRAM_LIST
2481         ;;
2482         --disable-everything)
2483             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2484         ;;
2485         --disable-all)
2486             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2487             disable $LIBRARY_LIST $PROGRAM_LIST doc
2488         ;;
2489         --enable-random|--disable-random)
2490             action=${opt%%-random}
2491             do_random ${action#--} $COMPONENT_LIST
2492         ;;
2493         --enable-random=*|--disable-random=*)
2494             action=${opt%%-random=*}
2495             do_random ${action#--} $optval
2496         ;;
2497         --enable-*=*|--disable-*=*)
2498             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2499             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2500             eval list=\$$(toupper $thing)_LIST
2501             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2502             list=$(filter "$name" $list)
2503             [ "$list" = "" ] && warn "Option $opt did not match anything"
2504             $action $list
2505         ;;
2506         --enable-?*|--disable-?*)
2507             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2508             if is_in $option $COMPONENT_LIST; then
2509                 test $action = disable && action=unset
2510                 eval $action \$$(toupper ${option%s})_LIST
2511             elif is_in $option $CMDLINE_SELECT; then
2512                 $action $option
2513             else
2514                 die_unknown $opt
2515             fi
2516         ;;
2517         --list-*)
2518             NAME="${opt#--list-}"
2519             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2520             NAME=${NAME%s}
2521             eval show_list $NAME \$$(toupper $NAME)_LIST
2522         ;;
2523         --help|-h) show_help
2524         ;;
2525         --fatal-warnings) enable fatal_warnings
2526         ;;
2527         *)
2528             optname="${opt%%=*}"
2529             optname="${optname#--}"
2530             optname=$(echo "$optname" | sed 's/-/_/g')
2531             if is_in $optname $CMDLINE_SET; then
2532                 eval $optname='$optval'
2533             elif is_in $optname $CMDLINE_APPEND; then
2534                 append $optname "$optval"
2535             else
2536                 die_unknown $opt
2537             fi
2538         ;;
2539     esac
2540 done
2541
2542 disabled logging && logfile=/dev/null
2543
2544 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2545 set >> $logfile
2546
2547 test -n "$cross_prefix" && enable cross_compile
2548
2549 if enabled cross_compile; then
2550     test -n "$arch" && test -n "$target_os" ||
2551         die "Must specify target arch and OS when cross-compiling"
2552 fi
2553
2554 ar_default="${cross_prefix}${ar_default}"
2555 cc_default="${cross_prefix}${cc_default}"
2556 cxx_default="${cross_prefix}${cxx_default}"
2557 nm_default="${cross_prefix}${nm_default}"
2558 pkg_config_default="${cross_prefix}${pkg_config_default}"
2559 ranlib="${cross_prefix}${ranlib}"
2560 strip_default="${cross_prefix}${strip_default}"
2561
2562 sysinclude_default="${sysroot}/usr/include"
2563
2564 test -n "$valgrind" && toolchain="valgrind-memcheck"
2565
2566 case "$toolchain" in
2567     clang-asan)
2568         cc_default="clang"
2569         add_cflags  -fsanitize=address
2570         add_ldflags -fsanitize=address
2571     ;;
2572     clang-tsan)
2573         cc_default="clang"
2574         add_cflags  -fsanitize=thread -pie
2575         add_ldflags -fsanitize=thread -pie
2576     ;;
2577     gcc-asan)
2578         cc_default="gcc"
2579         add_cflags  -fsanitize=address
2580         add_ldflags -fsanitize=address
2581     ;;
2582     gcc-tsan)
2583         cc_default="gcc"
2584         add_cflags  -fsanitize=thread -pie -fPIC
2585         add_ldflags -fsanitize=thread -pie -fPIC
2586     ;;
2587     valgrind-massif)
2588         target_exec_default=${valgrind:-"valgrind"}
2589         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2590     ;;
2591     valgrind-memcheck)
2592         target_exec_default=${valgrind:-"valgrind"}
2593         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2594     ;;
2595     msvc)
2596         cc_default="c99wrap cl"
2597         ld_default="c99wrap link"
2598         nm_default="dumpbin -symbols"
2599         ar_default="lib"
2600         target_os_default="win32"
2601     ;;
2602     icl)
2603         cc_default="c99wrap -noconv icl"
2604         ld_default="c99wrap xilink"
2605         nm_default="dumpbin -symbols"
2606         ar_default="xilib"
2607         target_os_default="win32"
2608     ;;
2609     gcov)
2610         add_cflags  -fprofile-arcs -ftest-coverage
2611         add_ldflags -fprofile-arcs -ftest-coverage
2612     ;;
2613     ?*)
2614         die "Unknown toolchain $toolchain"
2615     ;;
2616 esac
2617
2618 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2619 enabled cross_compile || host_cc_default=$cc
2620 set_default host_cc
2621
2622 if ! $pkg_config --version >/dev/null 2>&1; then
2623     warn "$pkg_config not found, library detection may fail."
2624     pkg_config=false
2625 fi
2626
2627 exesuf() {
2628     case $1 in
2629         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2630     esac
2631 }
2632
2633 EXESUF=$(exesuf $target_os)
2634 HOSTEXESUF=$(exesuf $host_os)
2635
2636 # set temporary file name
2637 : ${TMPDIR:=$TEMPDIR}
2638 : ${TMPDIR:=$TMP}
2639 : ${TMPDIR:=/tmp}
2640
2641 if ! check_cmd mktemp -u XXXXXX; then
2642     # simple replacement for missing mktemp
2643     # NOT SAFE FOR GENERAL USE
2644     mktemp(){
2645         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2646     }
2647 fi
2648
2649 tmpfile(){
2650     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2651         (set -C; exec > $tmp) 2>/dev/null ||
2652         die "Unable to create temporary file in $TMPDIR."
2653     append TMPFILES $tmp
2654     eval $1=$tmp
2655 }
2656
2657 trap 'rm -f -- $TMPFILES' EXIT
2658
2659 tmpfile TMPASM .asm
2660 tmpfile TMPC   .c
2661 tmpfile TMPCPP .cpp
2662 tmpfile TMPE   $EXESUF
2663 tmpfile TMPH   .h
2664 tmpfile TMPO   .o
2665 tmpfile TMPS   .S
2666 tmpfile TMPSH  .sh
2667 tmpfile TMPV   .ver
2668
2669 unset -f mktemp
2670
2671 chmod +x $TMPE
2672
2673 # make sure we can execute files in $TMPDIR
2674 cat > $TMPSH 2>> $logfile <<EOF
2675 #! /bin/sh
2676 EOF
2677 chmod +x $TMPSH >> $logfile 2>&1
2678 if ! $TMPSH >> $logfile 2>&1; then
2679     cat <<EOF
2680 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2681 variable to another directory and make sure that it is not mounted noexec.
2682 EOF
2683     die "Sanity test failed."
2684 fi
2685
2686 ccc_flags(){
2687     for flag; do
2688         case $flag in
2689             -std=c99)           echo -c99                       ;;
2690             -mcpu=*)            echo -arch ${flag#*=}           ;;
2691             -mieee)             echo -ieee                      ;;
2692             -O*|-fast)          echo $flag                      ;;
2693             -fno-math-errno)    echo -assume nomath_errno       ;;
2694             -g)                 echo -g3                        ;;
2695             -Wall)              echo -msg_enable level2         ;;
2696             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2697             -Wl,*)              echo $flag                      ;;
2698             -f*|-W*)                                            ;;
2699             *)                  echo $flag                      ;;
2700         esac
2701    done
2702 }
2703
2704 msvc_common_flags(){
2705     for flag; do
2706         case $flag in
2707             # In addition to specifying certain flags under the compiler
2708             # specific filters, they must be specified here as well or else the
2709             # generic catch all at the bottom will print the original flag.
2710             -Wall)                ;;
2711             -std=c99)             ;;
2712             # Common flags
2713             -fomit-frame-pointer) ;;
2714             -g)                   echo -Z7 ;;
2715             -fno-math-errno)      ;;
2716             -fno-common)          ;;
2717             -fno-signed-zeros)    ;;
2718             -fPIC)                ;;
2719             -mthumb)              ;;
2720             -march=*)             ;;
2721             -lz)                  echo zlib.lib ;;
2722             -lavifil32)           echo vfw32.lib ;;
2723             -lavicap32)           echo vfw32.lib user32.lib ;;
2724             -l*)                  echo ${flag#-l}.lib ;;
2725             *)                    echo $flag ;;
2726         esac
2727     done
2728 }
2729
2730 msvc_flags(){
2731     msvc_common_flags "$@"
2732     for flag; do
2733         case $flag in
2734             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2735                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2736                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2737                                        -wd4554 \
2738                                        -wd4996 -wd4273 ;;
2739         esac
2740     done
2741 }
2742
2743 icl_flags(){
2744     msvc_common_flags "$@"
2745     for flag; do
2746         case $flag in
2747             # Despite what Intel's documentation says -Wall, which is supported
2748             # on Windows, does enable remarks so disable them here.
2749             -Wall)                echo $flag -Qdiag-disable:remark ;;
2750             -std=c99)             echo -Qstd=c99 ;;
2751         esac
2752     done
2753 }
2754
2755 pgi_flags(){
2756     for flag; do
2757         case $flag in
2758             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2759             -fomit-frame-pointer) echo -Mnoframe ;;
2760             -g)                   echo -gopt ;;
2761             *)                    echo $flag ;;
2762         esac
2763     done
2764 }
2765
2766 suncc_flags(){
2767     for flag; do
2768         case $flag in
2769             -march=*|-mcpu=*)
2770                 case "${flag#*=}" in
2771                     native)                   echo -xtarget=native       ;;
2772                     v9|niagara)               echo -xarch=sparc          ;;
2773                     ultrasparc)               echo -xarch=sparcvis       ;;
2774                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2775                     i586|pentium)             echo -xchip=pentium        ;;
2776                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2777                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2778                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2779                     pentium4*)          echo -xtarget=pentium4           ;;
2780                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2781                     *-sse3)             echo -xarch=sse3                 ;;
2782                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2783                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2784                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2785                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2786                     bdver*)                    echo -xarch=avx           ;;
2787                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2788                     k8|opteron|athlon64|athlon-fx)
2789                                                echo -xarch=sse2a         ;;
2790                     athlon*)                   echo -xarch=pentium_proa  ;;
2791                 esac
2792                 ;;
2793             -std=c99)             echo -xc99              ;;
2794             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2795             -fPIC)                echo -KPIC -xcode=pic32 ;;
2796             -W*,*)                echo $flag              ;;
2797             -f*-*|-W*|-mimpure-text)                      ;;
2798             -shared)              echo -G                 ;;
2799             *)                    echo $flag              ;;
2800         esac
2801     done
2802 }
2803
2804 tms470_flags(){
2805     for flag; do
2806         case $flag in
2807             -march=*|-mcpu=*)
2808                 case "${flag#*=}" in
2809                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2810                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2811                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2812                     armv6*|arm11*)          echo -mv=6   ;;
2813                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2814                                             echo -mv=5e  ;;
2815                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2816                 esac
2817                 ;;
2818             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2819             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2820             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2821             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2822             -msoft-float)   echo --float_support=vfplib       ;;
2823             -O[0-3]|-mf=*)  echo $flag                        ;;
2824             -g)             echo -g -mn                       ;;
2825             -pds=*)         echo $flag                        ;;
2826             -D*|-I*)        echo $flag                        ;;
2827             --gcc|--abi=*)  echo $flag                        ;;
2828             -me)            echo $flag                        ;;
2829         esac
2830     done
2831 }
2832
2833 probe_cc(){
2834     pfx=$1
2835     _cc=$2
2836
2837     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2838     unset _ld_o _ldflags _ld_lib _ld_path
2839     unset _depflags _DEPCMD _DEPFLAGS
2840     _flags_filter=echo
2841
2842     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2843         _type=llvm_gcc
2844         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2845         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2846         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2847         _cflags_speed='-O3'
2848         _cflags_size='-Os'
2849     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2850         _type=gcc
2851         gcc_version=$($_cc --version | head -n1)
2852         gcc_basever=$($_cc -dumpversion)
2853         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2854         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2855         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2856         if ! $_cc -dumpversion | grep -q '^2\.'; then
2857             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2858         fi
2859         _cflags_speed='-O3'
2860         _cflags_size='-Os'
2861     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2862         _type=icc
2863         _ident=$($_cc --version | head -n1)
2864         _depflags='-MMD'
2865         _cflags_speed='-O3'
2866         _cflags_size='-Os'
2867         _cflags_noopt='-O1'
2868     elif $_cc -v 2>&1 | grep -q xlc; then
2869         _type=xlc
2870         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2871         _cflags_speed='-O5'
2872         _cflags_size='-O5 -qcompact'
2873     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2874         _type=ccc
2875         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2876         _DEPFLAGS='-M'
2877         _cflags_speed='-fast'
2878         _cflags_size='-O1'
2879         _flags_filter=ccc_flags
2880     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2881         test -d "$sysroot" || die "No valid sysroot specified."
2882         _type=armcc
2883         _ident=$($_cc --vsn | head -n1)
2884         armcc_conf="$PWD/armcc.conf"
2885         $_cc --arm_linux_configure                 \
2886              --arm_linux_config_file="$armcc_conf" \
2887              --configure_sysroot="$sysroot"        \
2888              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2889              die "Error creating armcc configuration file."
2890         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2891         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2892         as_default="${cross_prefix}gcc"
2893         _depflags='-MMD'
2894         _cflags_speed='-O3'
2895         _cflags_size='-Os'
2896     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2897         _type=tms470
2898         _ident=$($_cc -version | head -n1 | tr -s ' ')
2899         _flags='--gcc --abi=eabi -me'
2900         _cc_e='-ppl -fe=$@'
2901         _cc_o='-fe=$@'
2902         _depflags='-ppa -ppd=$(@:.o=.d)'
2903         _cflags_speed='-O3 -mf=5'
2904         _cflags_size='-O3 -mf=2'
2905         _flags_filter=tms470_flags
2906     elif $_cc -v 2>&1 | grep -q clang; then
2907         _type=clang
2908         _ident=$($_cc --version | head -n1)
2909         _depflags='-MMD'
2910         _cflags_speed='-O3'
2911         _cflags_size='-Os'
2912     elif $_cc -V 2>&1 | grep -q Sun; then
2913         _type=suncc
2914         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2915         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2916         _DEPFLAGS='-xM1 -xc99'
2917         _ldflags='-std=c99'
2918         _cflags_speed='-O5'
2919         _cflags_size='-O5 -xspace'
2920         _flags_filter=suncc_flags
2921     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2922         _type=pathscale
2923         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2924         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2925         _cflags_speed='-O2'
2926         _cflags_size='-Os'
2927         _flags_filter='filter_out -Wdisabled-optimization'
2928     elif $_cc -v 2>&1 | grep -q Open64; then
2929         _type=open64
2930         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2931         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2932         _cflags_speed='-O2'
2933         _cflags_size='-Os'
2934         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2935     elif $_cc -V 2>&1 | grep -q Portland; then
2936         _type=pgi
2937         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2938         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2939         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2940         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2941         _cflags_noopt="-O"
2942         _flags_filter=pgi_flags
2943     elif $_cc 2>&1 | grep -q Microsoft; then
2944         _type=msvc
2945         _ident=$($cc 2>&1 | head -n1)
2946         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2947         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2948         _cflags_speed="-O2"
2949         _cflags_size="-O1"
2950         # Nonstandard output options, to avoid msys path conversion issues.
2951         # Relies on wrapper to remap it.
2952         if $_cc 2>&1 | grep -q Linker; then
2953             _ld_o='-out $@'
2954         else
2955             _ld_o='-Fe$@'
2956         fi
2957         _cc_o='-Fo $@'
2958         _cc_e='-P -Fi $@'
2959         _flags_filter=msvc_flags
2960         _ld_lib='lib%.a'
2961         _ld_path='-libpath:'
2962         _flags='-nologo'
2963         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2964         if [ $pfx = hostcc ]; then
2965             append _cflags -Dsnprintf=_snprintf
2966         fi
2967         disable stripping
2968     elif $_cc 2>&1 | grep -q Intel; then
2969         _type=icl
2970         _ident=$($cc 2>&1 | head -n1)
2971         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2972         # Not only is O3 broken on 13.x+ but it is slower on all previous
2973         # versions (tested) as well.
2974         _cflags_speed="-O2"
2975         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2976         # Nonstandard output options, to avoid msys path conversion issues.
2977         # Relies on wrapper to remap it.
2978         if $_cc 2>&1 | grep -q Linker; then
2979             _ld_o='-out $@'
2980         else
2981             _ld_o='-Fe$@'
2982         fi
2983         _cc_o='-Fo $@'
2984         _cc_e='-P'
2985         _flags_filter=icl_flags
2986         _ld_lib='lib%.a'
2987         _ld_path='-libpath:'
2988         # -Qdiag-error to make icl error when seeing certain unknown arguments
2989         _flags='-nologo -Qdiag-error:4044,10157'
2990         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2991         # with MSVC which enables it by default.
2992         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2993         if [ $pfx = hostcc ]; then
2994             append _cflags -Dsnprintf=_snprintf
2995         fi
2996     fi
2997
2998     eval ${pfx}_type=\$_type
2999     eval ${pfx}_ident=\$_ident
3000 }
3001
3002 set_ccvars(){
3003     eval ${1}_C=\${_cc_c-\${${1}_C}}
3004     eval ${1}_E=\${_cc_e-\${${1}_E}}
3005     eval ${1}_O=\${_cc_o-\${${1}_O}}
3006
3007     if [ -n "$_depflags" ]; then
3008         eval ${1}_DEPFLAGS=\$_depflags
3009     else
3010         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3011         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3012         eval DEP${1}FLAGS=\$_flags
3013     fi
3014 }
3015
3016 probe_cc cc "$cc"
3017 cflags_filter=$_flags_filter
3018 cflags_speed=$_cflags_speed
3019 cflags_size=$_cflags_size
3020 cflags_noopt=$_cflags_noopt
3021 add_cflags $_flags $_cflags
3022 cc_ldflags=$_ldflags
3023 set_ccvars CC
3024
3025 probe_cc hostcc "$host_cc"
3026 host_cflags_filter=$_flags_filter
3027 add_host_cflags  $_flags $_cflags
3028 set_ccvars HOSTCC
3029
3030 test -n "$cc_type" && enable $cc_type ||
3031     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3032
3033 : ${as_default:=$cc}
3034 : ${dep_cc_default:=$cc}
3035 : ${ld_default:=$cc}
3036 : ${host_ld_default:=$host_cc}
3037 set_default ar as dep_cc ld host_ld
3038
3039 probe_cc as "$as"
3040 asflags_filter=$_flags_filter
3041 add_asflags $_flags $_cflags
3042 set_ccvars AS
3043
3044 probe_cc ld "$ld"
3045 ldflags_filter=$_flags_filter
3046 add_ldflags $_flags $_ldflags
3047 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3048 LD_O=${_ld_o-$LD_O}
3049 LD_LIB=${_ld_lib-$LD_LIB}
3050 LD_PATH=${_ld_path-$LD_PATH}
3051
3052 probe_cc hostld "$host_ld"
3053 host_ldflags_filter=$_flags_filter
3054 add_host_ldflags $_flags $_ldflags
3055 HOSTLD_O=${_ld_o-$HOSTLD_O}
3056
3057 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3058     probe_cc depcc "$dep_cc"
3059     CCDEP=${_DEPCMD:-$DEPCMD}
3060     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3061     DEPCCFLAGS=$_flags
3062 fi
3063
3064 if $ar 2>&1 | grep -q Microsoft; then
3065     arflags="-nologo"
3066     ar_o='-out:$@'
3067 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3068     arflags="rq"
3069     ar_o='$@'
3070 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3071     arflags='-Xany -r -c'
3072     ar_o='$@'
3073 else
3074     arflags="rc"
3075     ar_o='$@'
3076 fi
3077
3078 add_cflags $extra_cflags
3079 add_cxxflags $extra_cxxflags
3080 add_asflags $extra_cflags
3081
3082 if test -n "$sysroot"; then
3083     case "$cc_type" in
3084         gcc|llvm_gcc|clang)
3085             add_cppflags --sysroot="$sysroot"
3086             add_ldflags --sysroot="$sysroot"
3087         ;;
3088         tms470)
3089             add_cppflags -I"$sysinclude"
3090             add_ldflags  --sysroot="$sysroot"
3091         ;;
3092     esac
3093 fi
3094
3095 if test "$cpu" = host; then
3096     enabled cross_compile &&
3097         die "--cpu=host makes no sense when cross-compiling."
3098
3099     case "$cc_type" in
3100         gcc|llvm_gcc)
3101             check_native(){
3102                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3103                 sed -n "/cc1.*$1=/{
3104                             s/.*$1=\\([^ ]*\\).*/\\1/
3105                             p
3106                             q
3107                         }" $TMPE
3108             }
3109             cpu=$(check_native -march || check_native -mcpu)
3110         ;;
3111     esac
3112
3113     test "${cpu:-host}" = host &&
3114         die "--cpu=host not supported with compiler $cc"
3115 fi
3116
3117 # Deal with common $arch aliases
3118 case "$arch" in
3119     aarch64|arm64)
3120         arch="aarch64"
3121     ;;
3122     arm*|iPad*|iPhone*)
3123         arch="arm"
3124     ;;
3125     mips*|IP*)
3126         arch="mips"
3127     ;;
3128     parisc*|hppa*)
3129         arch="parisc"
3130     ;;
3131     "Power Macintosh"|ppc*|powerpc*)
3132         arch="ppc"
3133     ;;
3134     s390|s390x)
3135         arch="s390"
3136     ;;
3137     sh4|sh)
3138         arch="sh4"
3139     ;;
3140     sun4u|sparc*)
3141         arch="sparc"
3142     ;;
3143     tilegx|tile-gx)
3144         arch="tilegx"
3145     ;;
3146     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3147         arch="x86"
3148     ;;
3149 esac
3150
3151 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3152 enable $arch
3153
3154 # Add processor-specific flags
3155 if enabled aarch64; then
3156
3157     case $cpu in
3158         armv*)
3159             cpuflags="-march=$cpu"
3160         ;;
3161         *)
3162             cpuflags="-mcpu=$cpu"
3163         ;;
3164     esac
3165
3166 elif enabled alpha; then
3167
3168     cpuflags="-mcpu=$cpu"
3169
3170 elif enabled arm; then
3171
3172     check_arm_arch() {
3173         check_cpp_condition stddef.h \
3174             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3175             $cpuflags
3176     }
3177
3178     probe_arm_arch() {
3179         if   check_arm_arch 4;        then echo armv4;
3180         elif check_arm_arch 4T;       then echo armv4t;
3181         elif check_arm_arch 5;        then echo armv5;
3182         elif check_arm_arch 5E;       then echo armv5e;
3183         elif check_arm_arch 5T;       then echo armv5t;
3184         elif check_arm_arch 5TE;      then echo armv5te;
3185         elif check_arm_arch 5TEJ;     then echo armv5te;
3186         elif check_arm_arch 6;        then echo armv6;
3187         elif check_arm_arch 6J;       then echo armv6j;
3188         elif check_arm_arch 6K;       then echo armv6k;
3189         elif check_arm_arch 6Z;       then echo armv6z;
3190         elif check_arm_arch 6ZK;      then echo armv6zk;
3191         elif check_arm_arch 6T2;      then echo armv6t2;
3192         elif check_arm_arch 7;        then echo armv7;
3193         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3194         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3195         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3196         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3197         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3198         fi
3199     }
3200
3201     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3202
3203     case $cpu in
3204         armv*)
3205             cpuflags="-march=$cpu"
3206             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3207         ;;
3208         *)
3209             cpuflags="-mcpu=$cpu"
3210             case $cpu in
3211                 cortex-a*)                               subarch=armv7a  ;;
3212                 cortex-r*)                               subarch=armv7r  ;;
3213                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3214                 arm11*)                                  subarch=armv6   ;;
3215                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3216                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3217                 *)                             subarch=$(probe_arm_arch) ;;
3218             esac
3219         ;;
3220     esac
3221
3222     case "$subarch" in
3223         armv5t*)    enable fast_clz                ;;
3224         armv[6-8]*) enable fast_clz fast_unaligned ;;
3225     esac
3226
3227 elif enabled avr32; then
3228
3229     case $cpu in
3230         ap7[02]0[0-2])
3231             subarch="avr32_ap"
3232             cpuflags="-mpart=$cpu"
3233         ;;
3234         ap)
3235             subarch="avr32_ap"
3236             cpuflags="-march=$cpu"
3237         ;;
3238         uc3[ab]*)
3239             subarch="avr32_uc"
3240             cpuflags="-mcpu=$cpu"
3241         ;;
3242         uc)
3243             subarch="avr32_uc"
3244             cpuflags="-march=$cpu"
3245         ;;
3246     esac
3247
3248 elif enabled bfin; then
3249
3250     cpuflags="-mcpu=$cpu"
3251
3252 elif enabled mips; then
3253
3254     cpuflags="-march=$cpu"
3255
3256     case $cpu in
3257         24kc)
3258             disable mipsfpu
3259             disable mipsdspr1
3260             disable mipsdspr2
3261         ;;
3262         24kf*)
3263             disable mipsdspr1
3264             disable mipsdspr2
3265         ;;
3266         24kec|34kc|1004kc)
3267             disable mipsfpu
3268             disable mipsdspr2
3269         ;;
3270         24kef*|34kf*|1004kf*)
3271             disable mipsdspr2
3272         ;;
3273         74kc)
3274             disable mipsfpu
3275         ;;
3276     esac
3277
3278 elif enabled ppc; then
3279
3280     case $(tolower $cpu) in
3281         601|ppc601|powerpc601)
3282             cpuflags="-mcpu=601"
3283             disable altivec
3284         ;;
3285         603*|ppc603*|powerpc603*)
3286             cpuflags="-mcpu=603"
3287             disable altivec
3288         ;;
3289         604*|ppc604*|powerpc604*)
3290             cpuflags="-mcpu=604"
3291             disable altivec
3292         ;;
3293         g3|75*|ppc75*|powerpc75*)
3294             cpuflags="-mcpu=750"
3295             disable altivec
3296         ;;
3297         g4|745*|ppc745*|powerpc745*)
3298             cpuflags="-mcpu=7450"
3299         ;;
3300         74*|ppc74*|powerpc74*)
3301             cpuflags="-mcpu=7400"
3302         ;;
3303         g5|970|ppc970|powerpc970)
3304             cpuflags="-mcpu=970"
3305         ;;
3306         power[3-7]*)
3307             cpuflags="-mcpu=$cpu"
3308         ;;
3309         cell)
3310             cpuflags="-mcpu=cell"
3311             enable ldbrx
3312         ;;
3313         e500mc)
3314             cpuflags="-mcpu=e500mc"
3315             disable altivec
3316         ;;
3317         e500v2)
3318             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3319             disable altivec
3320         ;;
3321         e500)
3322             cpuflags="-mcpu=8540 -mhard-float"
3323             disable altivec
3324         ;;
3325     esac
3326
3327 elif enabled sparc; then
3328
3329     case $cpu in
3330         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3331             cpuflags="-mcpu=$cpu"
3332             disable vis
3333         ;;
3334         ultrasparc*|niagara[234])
3335             cpuflags="-mcpu=$cpu"
3336         ;;
3337     esac
3338
3339 elif enabled x86; then
3340
3341     case $cpu in
3342         i[345]86|pentium)
3343             cpuflags="-march=$cpu"
3344             disable mmx
3345         ;;
3346         # targets that do NOT support nopl and conditional mov (cmov)
3347         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3348             cpuflags="-march=$cpu"
3349             disable i686
3350         ;;
3351         # targets that do support nopl and conditional mov (cmov)
3352         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3353             cpuflags="-march=$cpu"
3354             enable i686
3355             enable fast_cmov
3356         ;;
3357         # targets that do support conditional mov but on which it's slow
3358         pentium4|pentium4m|prescott|nocona)
3359             cpuflags="-march=$cpu"
3360             enable i686
3361             disable fast_cmov
3362         ;;
3363     esac
3364
3365 fi
3366
3367 if [ "$cpu" != generic ]; then
3368     add_cflags  $cpuflags
3369     add_asflags $cpuflags
3370 fi
3371
3372 # compiler sanity check
3373 check_exec <<EOF
3374 int main(void){ return 0; }
3375 EOF
3376 if test "$?" != 0; then
3377     echo "$cc is unable to create an executable file."
3378     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3379         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3380         echo "Only do this if you know what cross compiling means."
3381     fi
3382     die "C compiler test failed."
3383 fi
3384
3385 add_cppflags -D_ISOC99_SOURCE
3386 add_cxxflags -D__STDC_CONSTANT_MACROS
3387 check_cflags -std=c99
3388 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3389 #include <stdlib.h>
3390 EOF
3391 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3392 #include <stdlib.h>
3393 EOF
3394
3395 check_host_cflags -std=c99
3396 check_host_cflags -Wall
3397
3398 check_64bit(){
3399     arch32=$1
3400     arch64=$2
3401     expr=$3
3402     check_code cc "" "int test[2*($expr) - 1]" &&
3403         subarch=$arch64 || subarch=$arch32
3404 }
3405
3406 case "$arch" in
3407     aarch64|alpha|ia64)
3408         spic=$shared
3409     ;;
3410     mips)
3411         check_64bit mips mips64 '_MIPS_SIM > 1'
3412         spic=$shared
3413     ;;
3414     parisc)
3415         check_64bit parisc parisc64 'sizeof(void *) > 4'
3416         spic=$shared
3417     ;;
3418     ppc)
3419         check_64bit ppc ppc64 'sizeof(void *) > 4'
3420         spic=$shared
3421     ;;
3422     sparc)
3423         check_64bit sparc sparc64 'sizeof(void *) > 4'
3424         spic=$shared
3425     ;;
3426     x86)
3427         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3428         if test "$subarch" = "x86_64"; then
3429             spic=$shared
3430         fi
3431     ;;
3432     ppc)
3433         check_cc <<EOF && subarch="ppc64"
3434         int test[(int)sizeof(char*) - 7];
3435 EOF
3436     ;;
3437 esac
3438
3439 enable $subarch
3440 enabled spic && enable_weak pic
3441
3442 # OS specific
3443 case $target_os in
3444     aix)
3445         SHFLAGS=-shared
3446         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3447         enabled shared && add_ldflags -Wl,-brtl
3448         ;;
3449     haiku)
3450         prefix_default="/boot/common"
3451         network_extralibs="-lnetwork"
3452         host_libs=
3453         ;;
3454     sunos)
3455         SHFLAGS='-shared -Wl,-h,$$(@F)'
3456         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3457         network_extralibs="-lsocket -lnsl"
3458         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3459         # When using suncc to build, the Solaris linker will mark
3460         # an executable with each instruction set encountered by
3461         # the Solaris assembler.  As our libraries contain their own
3462         # guards for processor-specific code, instead suppress
3463         # generation of the HWCAPS ELF section on Solaris x86 only.
3464         enabled_all suncc x86 &&
3465             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3466             add_ldflags -Wl,-M,mapfile
3467         nm_default='nm -P -g'
3468         ;;
3469     netbsd)
3470         disable symver
3471         oss_indev_extralibs="-lossaudio"
3472         oss_outdev_extralibs="-lossaudio"
3473         enabled gcc || check_ldflags -Wl,-zmuldefs
3474         ;;
3475     openbsd|bitrig)
3476         disable symver
3477         SHFLAGS='-shared'
3478         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3479         SLIB_INSTALL_LINKS=
3480         oss_indev_extralibs="-lossaudio"
3481         oss_outdev_extralibs="-lossaudio"
3482         ;;
3483     dragonfly)
3484         disable symver
3485         ;;
3486     freebsd)
3487         ;;
3488     bsd/os)
3489         add_extralibs -lpoll -lgnugetopt
3490         strip="strip -d"
3491         ;;
3492     darwin)
3493         gas="gas-preprocessor.pl $cc"
3494         enabled ppc && add_asflags -force_cpusubtype_ALL
3495         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3496         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3497         strip="${strip} -x"
3498         add_ldflags -Wl,-dynamic,-search_paths_first
3499         SLIBSUF=".dylib"
3500         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3501         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3502         objformat="macho"
3503         enabled x86_64 && objformat="macho64"
3504         enabled_any pic shared ||
3505             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3506         ;;
3507     mingw32*)
3508         if test $target_os = "mingw32ce"; then
3509             disable network
3510         else
3511             target_os=mingw32
3512         fi
3513         LIBTARGET=i386
3514         if enabled x86_64; then
3515             LIBTARGET="i386:x86-64"
3516         elif enabled arm; then
3517             LIBTARGET=arm-wince
3518         fi
3519         check_ldflags -Wl,--nxcompat
3520         check_ldflags -Wl,--dynamicbase
3521         shlibdir_default="$bindir_default"
3522         SLIBPREF=""
3523         SLIBSUF=".dll"
3524         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3525         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3526         dlltool="${cross_prefix}dlltool"
3527         if check_cmd lib.exe -list; then
3528             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3529             if enabled x86_64; then
3530                 LIBTARGET=x64
3531             fi
3532         elif check_cmd $dlltool --version; then
3533             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3534         fi
3535         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3536         SLIB_INSTALL_LINKS=
3537         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3538         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3539         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3540         objformat="win32"
3541         ranlib=:
3542         enable dos_paths
3543         ;;
3544     win32|win64)
3545         if enabled shared; then
3546             # Link to the import library instead of the normal static library
3547             # for shared libs.
3548             LD_LIB='%.lib'
3549             # Cannot build shared and static libs at the same time with MSVC.
3550             disable static
3551         fi
3552         shlibdir_default="$bindir_default"
3553         SLIBPREF=""
3554         SLIBSUF=".dll"
3555         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3556         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3557         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3558         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3559         SLIB_INSTALL_LINKS=
3560         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3561         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3562         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3563         objformat="win32"
3564         ranlib=:
3565         enable dos_paths
3566         ;;
3567     cygwin*)
3568         target_os=cygwin
3569         shlibdir_default="$bindir_default"
3570         SLIBPREF="cyg"
3571         SLIBSUF=".dll"
3572         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3573         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3574         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3575         SLIB_INSTALL_LINKS=
3576         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3577         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3578         objformat="win32"
3579         enable dos_paths
3580         ;;
3581     *-dos|freedos|opendos)
3582         network_extralibs="-lsocket"
3583         objformat="coff"
3584         enable dos_paths
3585         add_cppflags -U__STRICT_ANSI__
3586         ;;
3587     linux)
3588         enable dv1394
3589         ;;
3590     irix*)
3591         target_os=irix
3592         ranlib="echo ignoring ranlib"
3593         ;;
3594     os/2*)
3595         strip="lxlite -CS"
3596         ln_s="cp -f"
3597         objformat="aout"
3598         add_cppflags -D_GNU_SOURCE
3599         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3600         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3601         LIBSUF="_s.a"
3602         SLIBPREF=""
3603         SLIBSUF=".dll"
3604         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3605         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3606         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3607             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3608             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3609             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3610             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3611             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3612         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3613             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3614         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3615         enable dos_paths
3616         enable_weak os2threads
3617         ;;
3618     gnu/kfreebsd)
3619         add_cppflags -D_BSD_SOURCE
3620         ;;
3621     gnu)
3622         ;;
3623     qnx)
3624         add_cppflags -D_QNX_SOURCE
3625         network_extralibs="-lsocket"
3626         ;;
3627     symbian)
3628         SLIBSUF=".dll"
3629         enable dos_paths
3630         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3631         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3632         add_ldflags -Wl,--target1-abs,--no-undefined \
3633                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3634                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3635         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3636                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3637                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3638         ;;
3639     osf1)
3640         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3641         ;;
3642     minix)
3643         ;;
3644     plan9)
3645         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3646                      -D_REENTRANT_SOURCE        \
3647                      -D_RESEARCH_SOURCE         \
3648                      -DFD_SETSIZE=96            \
3649                      -DHAVE_SOCK_OPTS
3650         add_compat strtod.o strtod=avpriv_strtod
3651         network_extralibs='-lbsd'
3652         exeobjs=compat/plan9/main.o
3653         disable ffserver
3654         cp_f='cp'
3655         ;;
3656     none)
3657         ;;
3658     *)
3659         die "Unknown OS '$target_os'."
3660         ;;
3661 esac
3662
3663 # determine libc flavour
3664
3665 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3666 if check_cpp_condition features.h "defined __UCLIBC__"; then
3667     libc_type=uclibc
3668     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3669 elif check_cpp_condition features.h "defined __GLIBC__"; then
3670     libc_type=glibc
3671     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3672 # MinGW headers can be installed on Cygwin, so check for newlib first.
3673 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3674     libc_type=newlib
3675     add_cppflags -U__STRICT_ANSI__
3676 elif check_header _mingw.h; then
3677     libc_type=mingw
3678     check_cpp_condition _mingw.h \
3679         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3680             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3681         die "ERROR: MinGW runtime version must be >= 3.15."
3682     add_cppflags -U__STRICT_ANSI__
3683     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3684             __MINGW64_VERSION_MAJOR < 3"; then
3685         add_compat msvcrt/snprintf.o
3686         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3687     else
3688         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3689     fi
3690 elif check_func_headers stdlib.h _get_doserrno; then
3691     libc_type=msvcrt
3692     add_compat strtod.o strtod=avpriv_strtod
3693     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3694                                  _snprintf=avpriv_snprintf  \
3695                                  vsnprintf=avpriv_vsnprintf
3696     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3697     # 0x601 by default unless something else is set by the user.
3698     # This can easily lead to us detecting functions only present
3699     # in such new versions and producing binaries requiring windows 7.0.
3700     # Therefore explicitly set the default to XP unless the user has
3701     # set something else on the command line.
3702     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3703 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3704     libc_type=klibc
3705 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3706     libc_type=bionic
3707     add_compat strtod.o strtod=avpriv_strtod
3708 fi
3709
3710 test -n "$libc_type" && enable $libc_type
3711
3712 # hacks for compiler/libc/os combinations
3713
3714 if enabled_all tms470 glibc; then
3715     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3716     add_cppflags -D__USER_LABEL_PREFIX__=
3717     add_cppflags -D__builtin_memset=memset
3718     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3719     add_cflags   -pds=48    # incompatible redefinition of macro
3720 fi
3721
3722 if enabled_all ccc glibc; then
3723     add_ldflags -Wl,-z,now  # calls to libots crash without this
3724 fi
3725
3726 esc(){
3727     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3728 }
3729
3730 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3731
3732 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3733
3734 set_default $PATHS_LIST
3735 set_default nm
3736
3737 # we need to build at least one lib type
3738 if ! enabled_any static shared; then
3739     cat <<EOF
3740 At least one library type must be built.
3741 Specify --enable-static to build the static libraries or --enable-shared to
3742 build the shared libraries as well. To only build the shared libraries specify
3743 --disable-static in addition to --enable-shared.
3744 EOF
3745     exit 1;
3746 fi
3747
3748 # backward compatibility layer for incompatible_libav/fork_abi
3749 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3750 enabled incompatible_libav_abi && enable incompatible_fork_abi
3751
3752 die_license_disabled() {
3753     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3754 }
3755
3756 die_license_disabled_gpl() {
3757     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3758 }
3759
3760 die_license_disabled gpl frei0r
3761 die_license_disabled gpl libcdio
3762 die_license_disabled gpl libutvideo
3763 die_license_disabled gpl libvidstab
3764 die_license_disabled gpl libx264
3765 die_license_disabled gpl libxavs
3766 die_license_disabled gpl libxvid
3767 die_license_disabled gpl x11grab
3768
3769 die_license_disabled nonfree libaacplus
3770 die_license_disabled nonfree libfaac
3771 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3772 enabled gpl && die_license_disabled_gpl nonfree openssl
3773
3774 die_license_disabled version3 libopencore_amrnb
3775 die_license_disabled version3 libopencore_amrwb
3776 die_license_disabled version3 libvo_aacenc
3777 die_license_disabled version3 libvo_amrwbenc
3778
3779 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3780
3781 disabled optimizations || check_cflags -fomit-frame-pointer
3782
3783 enable_weak_pic() {
3784     disabled pic && return
3785     enable pic
3786     add_cppflags -DPIC
3787     case "$target_os" in
3788     mingw*|cygwin*)
3789         ;;
3790     *)
3791         add_cflags -fPIC
3792         ;;
3793     esac
3794     add_asflags  -fPIC
3795 }
3796
3797 enabled pic && enable_weak_pic
3798
3799 check_cc <<EOF || die "Symbol mangling check failed."
3800 int ff_extern;
3801 EOF
3802 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3803 extern_prefix=${sym%%ff_extern*}
3804
3805 check_cc <<EOF && enable_weak inline_asm
3806 void foo(void) { __asm__ volatile ("" ::); }
3807 EOF
3808
3809 _restrict=
3810 for restrict_keyword in restrict __restrict__ __restrict; do
3811     check_cc <<EOF && _restrict=$restrict_keyword && break
3812 void foo(char * $restrict_keyword p);
3813 EOF
3814 done
3815
3816 check_cc <<EOF && enable pragma_deprecated
3817 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3818 EOF
3819
3820 check_cc <<EOF && enable attribute_packed
3821 struct { int x; } __attribute__((packed)) x;
3822 EOF
3823
3824 check_cc <<EOF && enable attribute_may_alias
3825 union { int x; } __attribute__((may_alias)) x;
3826 EOF
3827
3828 check_cc <<EOF || die "endian test failed"
3829 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3830 EOF
3831 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3832
3833 check_inline_asm inline_asm_labels '"1:\n"'
3834
3835 if enabled alpha; then
3836
3837     check_cflags -mieee
3838
3839 elif enabled arm; then
3840
3841     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3842 float func(float a, float b){ return a+b; }
3843 EOF
3844
3845     enabled thumb && check_cflags -mthumb || check_cflags -marm
3846     nogas=die
3847
3848     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3849         enable vfp_args
3850     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3851         case "${cross_prefix:-$cc}" in
3852             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3853             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3854 __asm__ (".eabi_attribute 28, 1");
3855 int main(void) { return 0; }
3856 EOF
3857         esac
3858         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3859     fi
3860
3861     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3862     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3863     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3864     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3865     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3866     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3867
3868     [ $target_os = linux ] ||
3869         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3870             $ARCH_EXT_LIST_ARM
3871
3872     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3873     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3874
3875     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3876
3877 elif enabled mips; then
3878
3879     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3880     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3881      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3882     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3883      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3884     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3885      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3886     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3887      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3888
3889 elif enabled parisc; then
3890
3891     if enabled gcc; then
3892         case $($cc -dumpversion) in
3893             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3894         esac
3895     fi
3896
3897 elif enabled ppc; then
3898
3899     enable local_aligned_8 local_aligned_16
3900
3901     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3902     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3903     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3904     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3905
3906     # AltiVec flags: The FSF version of GCC differs from the Apple version
3907     if enabled altivec; then
3908         if ! enabled_any pic ppc64; then
3909             nogas=warn
3910         fi
3911         check_cflags -maltivec -mabi=altivec &&
3912         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3913         check_cflags -faltivec
3914
3915         # check if our compiler supports Motorola AltiVec C API
3916         check_cc <<EOF || disable altivec
3917 $inc_altivec_h
3918 int main(void) {
3919     vector signed int v1 = (vector signed int) { 0 };
3920     vector signed int v2 = (vector signed int) { 1 };
3921     v1 = vec_add(v1, v2);
3922     return 0;
3923 }
3924 EOF
3925
3926         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3927     fi
3928
3929 elif enabled sparc; then
3930
3931     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3932
3933 elif enabled x86; then
3934
3935     check_builtin rdtsc    intrin.h   "__rdtsc()"
3936     check_builtin mm_empty mmintrin.h "_mm_empty()"
3937
3938     enable local_aligned_8 local_aligned_16
3939
3940     # check whether EBP is available on x86
3941     # As 'i' is stored on the stack, this program will crash
3942     # if the base pointer is used to access it because the
3943     # base pointer is cleared in the inline assembly code.
3944     check_exec_crash <<EOF && enable ebp_available
3945 volatile int i=0;
3946 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3947 return i;
3948 EOF
3949
3950     # check whether EBX is available on x86
3951     check_inline_asm ebx_available '""::"b"(0)' &&
3952         check_inline_asm ebx_available '"":::"%ebx"'
3953
3954     # check whether xmm clobbers are supported
3955     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3956
3957     # check whether binutils is new enough to compile SSSE3/MMXEXT
3958     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3959     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3960
3961     if ! disabled_any asm mmx yasm; then
3962         if check_cmd $yasmexe --version; then
3963             enabled x86_64 && yasm_extra="-m amd64"
3964             yasm_debug="-g dwarf2"
3965         elif check_cmd nasm -v; then
3966             yasmexe=nasm
3967             yasm_debug="-g -F dwarf"
3968             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3969         fi
3970
3971         YASMFLAGS="-f $objformat $yasm_extra"
3972         enabled pic               && append YASMFLAGS "-DPIC"
3973         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3974         case "$objformat" in
3975             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3976         esac
3977
3978         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3979             die "yasm not found, use --disable-yasm for a crippled build"
3980         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
3981         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3982         check_yasm "CPU amdnop" && enable cpunop
3983     fi
3984
3985     case "$cpu" in
3986         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3987             disable fast_clz
3988         ;;
3989     esac
3990
3991 fi
3992
3993 if enabled asm; then
3994     as=${gas:=$as}
3995     check_as <<EOF && enable gnu_as || \
3996         $nogas "GNU assembler not found, install gas-preprocessor"
3997 .macro m n
3998 \n: .int 0
3999 .endm
4000 m x
4001 EOF
4002 fi
4003
4004 check_ldflags -Wl,--as-needed
4005
4006 if check_func dlopen; then
4007     ldl=
4008 elif check_func dlopen -ldl; then
4009     ldl=-ldl
4010 fi
4011
4012 if ! disabled network; then
4013     check_type "sys/types.h sys/socket.h" socklen_t
4014     check_type netdb.h "struct addrinfo"
4015     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4016     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4017     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4018     check_type netinet/in.h "struct sockaddr_in6"
4019     check_type poll.h "struct pollfd"
4020     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4021     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4022     check_type netinet/sctp.h "struct sctp_event_subscribe"
4023     check_func getaddrinfo $network_extralibs
4024     check_func getservbyport $network_extralibs
4025     # Prefer arpa/inet.h over winsock2
4026     if check_header arpa/inet.h ; then
4027         check_func closesocket
4028     elif check_header winsock2.h ; then
4029         check_func_headers winsock2.h closesocket -lws2 &&
4030             network_extralibs="-lws2" ||
4031         { check_func_headers winsock2.h closesocket -lws2_32 &&
4032             network_extralibs="-lws2_32"; }
4033         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4034         check_type ws2tcpip.h socklen_t
4035         check_type ws2tcpip.h "struct addrinfo"
4036         check_type ws2tcpip.h "struct group_source_req"
4037         check_type ws2tcpip.h "struct ip_mreq_source"
4038         check_type ws2tcpip.h "struct ipv6_mreq"
4039         check_type winsock2.h "struct pollfd"
4040         check_type ws2tcpip.h "struct sockaddr_in6"
4041         check_type ws2tcpip.h "struct sockaddr_storage"
4042         check_struct winsock2.h "struct sockaddr" sa_len
4043     else
4044         disable network
4045     fi
4046 fi
4047
4048 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4049 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4050
4051 check_func  access
4052 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4053 check_func  fcntl
4054 check_func  fork
4055 check_func_headers stdlib.h getenv
4056 check_func  gethrtime
4057 check_func  getopt
4058 check_func  getrusage
4059 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4060 check_func  gettimeofday
4061 check_func  inet_aton $network_extralibs
4062 check_func  isatty
4063 check_func  localtime_r
4064 check_func  ${malloc_prefix}memalign            && enable memalign
4065 check_func  mkstemp
4066 check_func  mmap
4067 check_func  mprotect
4068 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4069 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4070 check_func  setrlimit
4071 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4072 check_func  strerror_r
4073 check_func  sched_getaffinity
4074 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4075 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4076 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4077 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4078 check_builtin sarestart signal.h "SA_RESTART"
4079 check_func  sysconf
4080 check_func  sysctl
4081 check_func  usleep
4082 check_func_headers conio.h kbhit
4083 check_func_headers windows.h PeekNamedPipe
4084 check_func_headers io.h setmode
4085 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4086 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4087 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4088 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4089 check_func_headers windows.h GetProcessAffinityMask
4090 check_func_headers windows.h GetProcessTimes
4091 check_func_headers windows.h GetSystemTimeAsFileTime
4092 check_func_headers windows.h MapViewOfFile
4093 check_func_headers windows.h SetConsoleTextAttribute
4094 check_func_headers windows.h Sleep
4095 check_func_headers windows.h VirtualAlloc
4096 check_func_headers glob.h glob
4097 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4098
4099 check_header cl/cl.h
4100 check_header direct.h
4101 check_header dlfcn.h
4102 check_header dxva.h
4103 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4104 check_header io.h
4105 check_header libcrystalhd/libcrystalhd_if.h
4106 check_header malloc.h
4107 check_header poll.h
4108 check_header sys/mman.h
4109 check_header sys/param.h
4110 check_header sys/resource.h
4111 check_header sys/select.h
4112 check_header sys/time.h
4113 check_header sys/un.h
4114 check_header termios.h
4115 check_header unistd.h
4116 check_header vdpau/vdpau.h
4117 check_header vdpau/vdpau_x11.h
4118 check_header VideoDecodeAcceleration/VDADecoder.h
4119 check_header windows.h
4120 check_header X11/extensions/XvMClib.h
4121 check_header asm/types.h
4122
4123 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4124 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4125
4126 if ! disabled w32threads && ! enabled pthreads; then
4127     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4128 fi
4129
4130 # check for some common methods of building with pthread support
4131 # do this before the optional library checks as some of them require pthreads
4132 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4133     enable pthreads
4134     if check_func pthread_create; then
4135         :
4136     elif check_func pthread_create -pthread; then
4137         add_cflags -pthread
4138         add_extralibs -pthread
4139     elif check_func pthread_create -pthreads; then
4140         add_cflags -pthreads
4141         add_extralibs -pthreads
4142     elif check_func pthread_create -lpthreadGC2; then
4143         add_extralibs -lpthreadGC2
4144     elif ! check_lib pthread.h pthread_create -lpthread; then
4145         disable pthreads
4146     fi
4147 fi
4148
4149 for thread in $THREADS_LIST; do
4150     if enabled $thread; then
4151         test -n "$thread_type" &&
4152             die "ERROR: Only one thread type must be selected." ||
4153             thread_type="$thread"
4154     fi
4155 done
4156
4157 if enabled pthreads; then
4158   check_func pthread_cancel
4159 fi
4160
4161 enabled sync_val_compare_and_swap && enable atomics_gcc
4162 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4163 enabled MemoryBarrier && enable atomics_win32
4164
4165 check_lib math.h sin -lm && LIBM="-lm"
4166 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4167
4168 atan2f_args=2
4169 ldexpf_args=2
4170 powf_args=2
4171
4172 for func in $MATH_FUNCS; do
4173     eval check_mathfunc $func \${${func}_args:-1}
4174 done
4175
4176 # these are off by default, so fail if requested and not available
4177 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4178                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4179                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4180 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4181 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4182 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4183 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4184 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4185 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4186 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4187 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4188                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4189                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4190 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4191 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4192 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4193 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"
4194 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4195 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4196 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4197 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4198                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4199                                done || die "ERROR: libgsm not found"; }
4200 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4201 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4202 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4203 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4204 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4205 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4206 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4207 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4208                                check_lib openjpeg.h opj_version -lopenjpeg ||
4209                                die "ERROR: libopenjpeg not found"; }
4210 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4211 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4212 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4213 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4214 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4215 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4216 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4217 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4218 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4219     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4220     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4221 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4222 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4223                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4224                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4225 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4226 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4227 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4228 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4229 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4230 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4231 enabled libvpx            && {
4232     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4233                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4234     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 ||
4235                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4236     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4237     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4238 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4239 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4240                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4241                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4242 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4243 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4244 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4245 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4246                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4247                                die "ERROR: openal not found"; } &&
4248                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4249                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4250 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4251                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4252                                die "ERROR: opencl not found"; } &&
4253                              { enabled_any w32threads os2threads &&
4254                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4255                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4256                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4257                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4258 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4259                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4260                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4261                                die "ERROR: openssl not found"; }
4262
4263 if enabled gnutls; then
4264     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4265     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4266 fi
4267
4268 # libdc1394 check
4269 if enabled libdc1394; then
4270     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4271         enable libdc1394_2; } ||
4272     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4273         enable libdc1394_1; } ||
4274     die "ERROR: No version of libdc1394 found "
4275 fi
4276
4277 SDL_CONFIG="${cross_prefix}sdl-config"
4278 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4279     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4280     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4281     enable sdl
4282 else
4283   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4284     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4285     sdl_libs=$("${SDL_CONFIG}" --libs)
4286     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4287     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4288     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4289     enable sdl
4290   fi
4291 fi
4292 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4293
4294 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4295 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4296 perl --version > /dev/null 2>&1 && enable perl || disable perl
4297 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4298 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4299
4300 check_header linux/fb.h
4301 check_header linux/videodev.h
4302 check_header linux/videodev2.h
4303 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4304
4305 check_header sys/videoio.h
4306
4307 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4308 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4309 # w32api 3.12 had it defined wrong
4310 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4311
4312 check_type "dshow.h" IBaseFilter
4313
4314 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4315 { check_header dev/bktr/ioctl_meteor.h &&
4316   check_header dev/bktr/ioctl_bt848.h; } ||
4317 { check_header machine/ioctl_meteor.h &&
4318   check_header machine/ioctl_bt848.h; } ||
4319 { check_header dev/video/meteor/ioctl_meteor.h &&
4320   check_header dev/video/bktr/ioctl_bt848.h; } ||
4321 check_header dev/ic/bt8xx.h
4322
4323 check_header sndio.h
4324 if check_struct sys/soundcard.h audio_buf_info bytes; then
4325     enable_safe sys/soundcard.h
4326 else
4327     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4328     #include <sys/soundcard.h>
4329     audio_buf_info abc;
4330 EOF
4331 fi
4332 check_header soundcard.h
4333
4334 enabled_any alsa_indev alsa_outdev &&
4335     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4336
4337 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4338     check_func jack_port_get_latency_range -ljack
4339
4340 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4341
4342 if enabled libcdio; then
4343     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4344     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4345     die "ERROR: libcdio-paranoia not found"
4346 fi
4347
4348 enabled x11grab                                           &&
4349 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4350 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4351 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4352
4353 enabled vaapi &&
4354     check_lib va/va.h vaInitialize -lva ||
4355     disable vaapi
4356
4357 enabled vdpau &&
4358     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4359     disable vdpau
4360
4361 # Funny iconv installations are not unusual, so check it after all flags have been set
4362 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4363
4364 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4365
4366 # add some useful compiler flags if supported
4367 check_cflags -Wdeclaration-after-statement
4368 check_cflags -Wall
4369 check_cflags -Wno-parentheses
4370 check_cflags -Wno-switch
4371 check_cflags -Wno-format-zero-length
4372 check_cflags -Wdisabled-optimization
4373 check_cflags -Wpointer-arith
4374 check_cflags -Wredundant-decls
4375 check_cflags -Wno-pointer-sign
4376 check_cflags -Wwrite-strings
4377 check_cflags -Wtype-limits
4378 check_cflags -Wundef
4379 check_cflags -Wmissing-prototypes
4380 check_cflags -Wno-pointer-to-int-cast
4381 check_cflags -Wstrict-prototypes
4382 enabled extra_warnings && check_cflags -Winline
4383
4384 # add some linker flags
4385 check_ldflags -Wl,--warn-common
4386 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4387 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4388
4389 enabled xmm_clobber_test &&
4390     check_ldflags -Wl,--wrap,avcodec_open2              \
4391                   -Wl,--wrap,avcodec_decode_audio4      \
4392                   -Wl,--wrap,avcodec_decode_video2      \
4393                   -Wl,--wrap,avcodec_decode_subtitle2   \
4394                   -Wl,--wrap,avcodec_encode_audio2      \
4395                   -Wl,--wrap,avcodec_encode_video       \
4396                   -Wl,--wrap,avcodec_encode_subtitle    \
4397                   -Wl,--wrap,sws_scale ||
4398     disable xmm_clobber_test
4399
4400 echo "X{};" > $TMPV
4401 if test_ldflags -Wl,--version-script,$TMPV; then
4402     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4403     check_cc <<EOF && enable symver_asm_label
4404 void ff_foo(void) __asm__ ("av_foo@VERSION");
4405 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4406 EOF
4407     check_cc <<EOF && enable symver_gnu_asm
4408 __asm__(".symver ff_foo,av_foo@VERSION");
4409 void ff_foo(void) {}
4410 EOF
4411 fi
4412
4413 if [ -z "$optflags" ]; then
4414     if enabled small; then
4415         optflags=$cflags_size
4416     elif enabled optimizations; then
4417         optflags=$cflags_speed
4418     else
4419         optflags=$cflags_noopt
4420     fi
4421 fi
4422
4423 check_optflags(){
4424     check_cflags "$@"
4425     enabled lto && check_ldflags "$@"
4426 }
4427
4428
4429 if enabled lto; then
4430     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4431     check_cflags  -flto
4432     check_ldflags -flto $cpuflags
4433 fi
4434
4435 check_optflags $optflags
4436 check_optflags -fno-math-errno
4437 check_optflags -fno-signed-zeros
4438
4439 enabled ftrapv && check_cflags -ftrapv
4440
4441 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4442 int x;
4443 EOF
4444
4445
4446 if enabled icc; then
4447     # Just warnings, no remarks
4448     check_cflags -w1
4449     # -wd: Disable following warnings
4450     # 144, 167, 556: -Wno-pointer-sign
4451     # 188: enumerated type mixed with another type
4452     # 1292: attribute "foo" ignored
4453     # 1419: external declaration in primary source file
4454     # 10006: ignoring unknown option -fno-signed-zeros
4455     # 10148: ignoring unknown option -Wno-parentheses
4456     # 10156: ignoring option '-W'; no argument required
4457     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4458     # 11030: Warning unknown option --as-needed
4459     # 10156: ignoring option '-export'; no argument required
4460     check_ldflags -wd10156,11030
4461     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4462     enable ebp_available
4463     if enabled x86_32; then
4464         icc_version=$($cc -dumpversion)
4465         test ${icc_version%%.*} -ge 11 &&
4466             check_cflags -falign-stack=maintain-16-byte ||
4467             disable aligned_stack
4468     fi
4469 elif enabled ccc; then
4470     # disable some annoying warnings
4471     add_cflags -msg_disable bitnotint
4472     add_cflags -msg_disable mixfuncvoid
4473     add_cflags -msg_disable nonstandcast
4474     add_cflags -msg_disable unsupieee
4475 elif enabled gcc; then
4476     check_optflags -fno-tree-vectorize
4477     check_cflags -Werror=implicit-function-declaration
4478     check_cflags -Werror=missing-prototypes
4479     check_cflags -Werror=return-type
4480     check_cflags -Werror=vla
4481 elif enabled llvm_gcc; then
4482     check_cflags -mllvm -stack-alignment=16
4483 elif enabled clang; then
4484     check_cflags -mllvm -stack-alignment=16
4485     check_cflags -Qunused-arguments
4486     check_cflags -Werror=implicit-function-declaration
4487     check_cflags -Werror=missing-prototypes
4488     check_cflags -Werror=return-type
4489 elif enabled armcc; then
4490     # 2523: use of inline assembler is deprecated
4491     add_cflags -W${armcc_opt},--diag_suppress=2523
4492     add_cflags -W${armcc_opt},--diag_suppress=1207
4493     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4494     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4495     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4496     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4497 elif enabled tms470; then
4498     add_cflags -pds=824 -pds=837
4499 elif enabled pathscale; then
4500     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4501 elif enabled_any msvc icl; then
4502     enabled x86_32 && disable aligned_stack
4503     enabled_all x86_32 debug && add_cflags -Oy-
4504     enabled debug && add_ldflags -debug
4505     if enabled icl; then
4506         # basically -fstrict-aliasing that does not work (correctly) on icl 13.x
4507         check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4508         # icl will pass the inline asm tests but inline asm is currently
4509         # not supported (build will fail)
4510         disable inline_asm
4511     fi
4512 fi
4513
4514 case $target_os in
4515     osf1)
4516         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4517     ;;
4518     plan9)
4519         add_cppflags -Dmain=plan9_main
4520     ;;
4521 esac
4522
4523 enable frame_thread_encoder
4524 enabled_any $THREADS_LIST      && enable threads
4525 enabled_any $ATOMICS_LIST      && enable atomics_native
4526
4527 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4528
4529 check_deps $CONFIG_LIST       \
4530            $CONFIG_EXTRA      \
4531            $HAVE_LIST         \
4532            $ALL_COMPONENTS    \
4533
4534
4535 if test $target_os = "haiku"; then
4536     disable memalign
4537     disable posix_memalign
4538 fi
4539
4540 ! enabled_any memalign posix_memalign aligned_malloc &&
4541     enabled_any $need_memalign && enable memalign_hack
4542
4543 # add_dep lib dep
4544 # -> enable ${lib}_deps_${dep}
4545 # -> add $dep to ${lib}_deps only once
4546 add_dep() {
4547     lib=$1
4548     dep=$2
4549     enabled "${lib}_deps_${dep}" && return 0
4550     enable  "${lib}_deps_${dep}"
4551     prepend "${lib}_deps" $dep
4552 }
4553
4554 # merge deps lib components
4555 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4556 merge_deps() {
4557     lib=$1
4558     shift
4559     for comp in $*; do
4560         enabled $comp || continue
4561         eval "dep=\"\$${comp}_deps\""
4562         for d in $dep; do
4563             add_dep $lib $d
4564         done
4565     done
4566 }
4567
4568 merge_deps libavfilter $FILTER_LIST
4569
4570 echo "install prefix            $prefix"
4571 echo "source path               $source_path"
4572 echo "C compiler                $cc"
4573 echo "ARCH                      $arch ($cpu)"
4574 if test "$build_suffix" != ""; then
4575     echo "build suffix              $build_suffix"
4576 fi
4577 if test "$progs_suffix" != ""; then
4578     echo "progs suffix              $progs_suffix"
4579 fi
4580 if test "$extra_version" != ""; then
4581     echo "version string suffix     $extra_version"
4582 fi
4583 echo "big-endian                ${bigendian-no}"
4584 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4585 if enabled x86; then
4586     echo "${yasmexe}                      ${yasm-no}"
4587     echo "MMX enabled               ${mmx-no}"
4588     echo "MMXEXT enabled            ${mmxext-no}"
4589     echo "3DNow! enabled            ${amd3dnow-no}"
4590     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4591     echo "SSE enabled               ${sse-no}"
4592     echo "SSSE3 enabled             ${ssse3-no}"
4593     echo "AVX enabled               ${avx-no}"
4594     echo "FMA4 enabled              ${fma4-no}"
4595     echo "i686 features enabled     ${i686-no}"
4596     echo "CMOV is fast              ${fast_cmov-no}"
4597     echo "EBX available             ${ebx_available-no}"
4598     echo "EBP available             ${ebp_available-no}"
4599 fi
4600 if enabled arm; then
4601     echo "ARMv5TE enabled           ${armv5te-no}"
4602     echo "ARMv6 enabled             ${armv6-no}"
4603     echo "ARMv6T2 enabled           ${armv6t2-no}"
4604     echo "VFP enabled               ${vfp-no}"
4605     echo "NEON enabled              ${neon-no}"
4606     echo "THUMB enabled             ${thumb-no}"
4607 fi
4608 if enabled mips; then
4609     echo "MIPS FPU enabled          ${mipsfpu-no}"
4610     echo "MIPS32R2 enabled          ${mips32r2-no}"
4611     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4612     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4613 fi
4614 if enabled ppc; then
4615     echo "AltiVec enabled           ${altivec-no}"
4616     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4617     echo "dcbzl available           ${dcbzl-no}"
4618 fi
4619 if enabled sparc; then
4620     echo "VIS enabled               ${vis-no}"
4621 fi
4622 echo "debug symbols             ${debug-no}"
4623 echo "strip symbols             ${stripping-no}"
4624 echo "optimize for size         ${small-no}"
4625 echo "optimizations             ${optimizations-no}"
4626 echo "static                    ${static-no}"
4627 echo "shared                    ${shared-no}"
4628 echo "postprocessing support    ${postproc-no}"
4629 echo "new filter support        ${avfilter-no}"
4630 echo "network support           ${network-no}"
4631 echo "threading support         ${thread_type-no}"
4632 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4633 echo "SDL support               ${sdl-no}"
4634 echo "opencl enabled            ${opencl-no}"
4635 echo "texi2html enabled         ${texi2html-no}"
4636 echo "perl enabled              ${perl-no}"
4637 echo "pod2man enabled           ${pod2man-no}"
4638 echo "makeinfo enabled          ${makeinfo-no}"
4639 test -n "$random_seed" &&
4640     echo "random seed               ${random_seed}"
4641 echo
4642
4643 echo "External libraries:"
4644 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4645 echo
4646
4647 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4648     echo "Enabled ${type}s:"
4649     eval list=\$$(toupper $type)_LIST
4650     print_enabled '_*' $list | print_3_columns
4651     echo
4652 done
4653
4654 license="LGPL version 2.1 or later"
4655 if enabled nonfree; then
4656     license="nonfree and unredistributable"
4657 elif enabled gplv3; then
4658     license="GPL version 3 or later"
4659 elif enabled lgplv3; then
4660     license="LGPL version 3 or later"
4661 elif enabled gpl; then
4662     license="GPL version 2 or later"
4663 fi
4664
4665 echo "License: $license"
4666
4667 echo "Creating config.mak, config.h, and doc/config.texi..."
4668
4669 test -e Makefile || $ln_s "$source_path/Makefile" .
4670
4671 enabled stripping || strip="echo skipping strip"
4672
4673 config_files="$TMPH config.mak doc/config.texi"
4674
4675 cat > config.mak <<EOF
4676 # Automatically generated by configure - do not modify!
4677 ifndef FFMPEG_CONFIG_MAK
4678 FFMPEG_CONFIG_MAK=1
4679 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4680 prefix=$prefix
4681 LIBDIR=\$(DESTDIR)$libdir
4682 SHLIBDIR=\$(DESTDIR)$shlibdir
4683 INCDIR=\$(DESTDIR)$incdir
4684 BINDIR=\$(DESTDIR)$bindir
4685 DATADIR=\$(DESTDIR)$datadir
4686 MANDIR=\$(DESTDIR)$mandir
4687 SRC_PATH=$source_path
4688 ifndef MAIN_MAKEFILE
4689 SRC_PATH:=\$(SRC_PATH:.%=..%)
4690 endif
4691 CC_IDENT=$cc_ident
4692 ARCH=$arch
4693 CC=$cc
4694 CXX=$cxx
4695 AS=$as
4696 LD=$ld
4697 DEPCC=$dep_cc
4698 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4699 DEPAS=$as
4700 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4701 YASM=$yasmexe
4702 DEPYASM=$yasmexe
4703 AR=$ar
4704 ARFLAGS=$arflags
4705 AR_O=$ar_o
4706 RANLIB=$ranlib
4707 CP=cp -p
4708 LN_S=$ln_s
4709 STRIP=$strip
4710 CPPFLAGS=$CPPFLAGS
4711 CFLAGS=$CFLAGS
4712 CXXFLAGS=$CXXFLAGS
4713 ASFLAGS=$ASFLAGS
4714 AS_C=$AS_C
4715 AS_O=$AS_O
4716 CC_C=$CC_C
4717 CC_E=$CC_E
4718 CC_O=$CC_O
4719 CXX_C=$CXX_C
4720 CXX_O=$CXX_O
4721 LD_O=$LD_O
4722 LD_LIB=$LD_LIB
4723 LD_PATH=$LD_PATH
4724 DLLTOOL=$dlltool
4725 LDFLAGS=$LDFLAGS
4726 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4727 YASMFLAGS=$YASMFLAGS
4728 BUILDSUF=$build_suffix
4729 PROGSSUF=$progs_suffix
4730 FULLNAME=$FULLNAME
4731 LIBPREF=$LIBPREF
4732 LIBSUF=$LIBSUF
4733 LIBNAME=$LIBNAME
4734 SLIBPREF=$SLIBPREF
4735 SLIBSUF=$SLIBSUF
4736 EXESUF=$EXESUF
4737 EXTRA_VERSION=$extra_version
4738 CCDEP=$CCDEP
4739 CXXDEP=$CXXDEP
4740 CCDEP_FLAGS=$CCDEP_FLAGS
4741 ASDEP=$ASDEP
4742 ASDEP_FLAGS=$ASDEP_FLAGS
4743 CC_DEPFLAGS=$CC_DEPFLAGS
4744 AS_DEPFLAGS=$AS_DEPFLAGS
4745 HOSTCC=$host_cc
4746 HOSTLD=$host_ld
4747 HOSTCFLAGS=$host_cflags
4748 HOSTCPPFLAGS=$host_cppflags
4749 HOSTEXESUF=$HOSTEXESUF
4750 HOSTLDFLAGS=$host_ldflags
4751 HOSTLIBS=$host_libs
4752 DEPHOSTCC=$host_cc
4753 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4754 HOSTCCDEP=$HOSTCCDEP
4755 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4756 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4757 HOSTCC_C=$HOSTCC_C
4758 HOSTCC_O=$HOSTCC_O
4759 HOSTLD_O=$HOSTLD_O
4760 TARGET_EXEC=$target_exec $target_exec_args
4761 TARGET_PATH=$target_path
4762 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4763 LIBS-ffplay=$sdl_libs
4764 CFLAGS-ffplay=$sdl_cflags
4765 ZLIB=$($ldflags_filter -lz)
4766 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4767 EXTRALIBS=$extralibs
4768 COMPAT_OBJS=$compat_objs
4769 EXEOBJS=$exeobjs
4770 INSTALL=$install
4771 LIBTARGET=${LIBTARGET}
4772 SLIBNAME=${SLIBNAME}
4773 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4774 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4775 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4776 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4777 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4778 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4779 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4780 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4781 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4782 NOREDZONE_FLAGS=$noredzone_flags
4783 EOF
4784
4785 get_version(){
4786     lcname=lib${1}
4787     name=$(toupper $lcname)
4788     file=$source_path/$lcname/version.h
4789     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4790     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4791     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4792     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4793     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4794 }
4795
4796 map 'get_version $v' $LIBRARY_LIST
4797
4798 cat > $TMPH <<EOF
4799 /* Automatically generated by configure - do not modify! */
4800 #ifndef FFMPEG_CONFIG_H
4801 #define FFMPEG_CONFIG_H
4802 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4803 #define FFMPEG_LICENSE "$(c_escape $license)"
4804 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4805 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4806 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4807 #define av_restrict $_restrict
4808 #define EXTERN_PREFIX "${extern_prefix}"
4809 #define EXTERN_ASM ${extern_prefix}
4810 #define SLIBSUF "$SLIBSUF"
4811 #define HAVE_MMX2 HAVE_MMXEXT
4812 EOF
4813
4814 test -n "$assert_level" &&
4815     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4816
4817 test -n "$malloc_prefix" &&
4818     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4819
4820 if enabled yasm; then
4821     append config_files $TMPASM
4822     printf '' >$TMPASM
4823 fi
4824
4825 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4826
4827
4828 mkdir -p doc
4829 echo "@c auto-generated by configure" > doc/config.texi
4830
4831 print_config ARCH_   "$config_files" $ARCH_LIST
4832 print_config HAVE_   "$config_files" $HAVE_LIST
4833 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4834                                      $CONFIG_EXTRA      \
4835                                      $ALL_COMPONENTS    \
4836
4837 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4838 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4839
4840 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4841 cp_if_changed $TMPH config.h
4842 touch .config
4843
4844 enabled yasm && cp_if_changed $TMPASM config.asm
4845
4846 cat > $TMPH <<EOF
4847 /* Generated by ffconf */
4848 #ifndef AVUTIL_AVCONFIG_H
4849 #define AVUTIL_AVCONFIG_H
4850 EOF
4851
4852 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4853
4854 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4855
4856 cp_if_changed $TMPH libavutil/avconfig.h
4857
4858 if test -n "$WARNINGS"; then
4859     printf "\n$WARNINGS"
4860     enabled fatal_warnings && exit 1
4861 fi
4862
4863 # build pkg-config files
4864
4865 pkgconfig_generate(){
4866     name=$1
4867     shortname=${name#lib}${build_suffix}
4868     comment=$2
4869     version=$3
4870     libs=$4
4871     requires=$5
4872     enabled ${name#lib} || return 0
4873     mkdir -p $name
4874     cat <<EOF > $name/$name${build_suffix}.pc
4875 prefix=$prefix
4876 exec_prefix=\${prefix}
4877 libdir=$libdir
4878 includedir=$incdir
4879
4880 Name: $name
4881 Description: $comment
4882 Version: $version
4883 Requires: $(enabled shared || echo $requires)
4884 Requires.private: $(enabled shared && echo $requires)
4885 Conflicts:
4886 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4887 Libs.private: $(enabled shared && echo $libs)
4888 Cflags: -I\${includedir}
4889 EOF
4890
4891 mkdir -p doc/examples/pc-uninstalled
4892 includedir=${source_path}
4893 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4894     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4895 prefix=
4896 exec_prefix=
4897 libdir=\${pcfiledir}/../../../$name
4898 includedir=${includedir}
4899
4900 Name: $name
4901 Description: $comment
4902 Version: $version
4903 Requires: $requires
4904 Conflicts:
4905 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4906 Cflags: -I\${includedir}
4907 EOF
4908 }
4909
4910 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4911 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4912 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4913 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4914 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4915 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4916 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4917 lavfi_libs=${lavfi_libs%, }
4918
4919 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4920 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4921
4922 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
4923 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4924 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4925 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
4926 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4927 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4928 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4929 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4930 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4931
4932 fix_ffmpeg_remote(){
4933     git_remote_from=$1
4934     git_remote_to=$2
4935     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4936     if [ "$fixme_remote" != "" ]; then
4937         echolog "
4938 Outdated domain in git config, the official domain for ffmpeg git is since
4939 November 2011, source.ffmpeg.org, both the old and the new point to the same
4940 repository and server. To update it enter the following commands:
4941 "
4942         for remote in $fixme_remote; do
4943             echolog "git remote set-url $remote $git_remote_to"
4944         done
4945     fi
4946 }
4947
4948 if test -f "$source_path/.git/config"; then
4949     remote_from=git.videolan.org
4950     remote_to=source.ffmpeg.org
4951     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4952     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4953 fi