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