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