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