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   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --enable-rpath           use rpath to allow installing libraries in paths
  91                            not part of the dynamic linker search path
  92                            use rpath when linking programs [USE WITH CARE]
  93
  94 Licensing options:
  95   --enable-gpl             allow use of GPL code, the resulting libs
  96                            and binaries will be under GPL [no]
  97   --enable-version3        upgrade (L)GPL to version 3 [no]
  98   --enable-nonfree         allow use of nonfree code, the resulting libs
  99                            and binaries will be unredistributable [no]
 100
 101 Configuration options:
 102   --disable-static         do not build static libraries [no]
 103   --enable-shared          build shared libraries [no]
 104   --enable-small           optimize for size instead of speed
 105   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 106   --enable-gray            enable full grayscale support (slower color)
 107   --disable-swscale-alpha  disable alpha channel support in swscale
 108   --disable-all            disable building components, libraries and programs
 109   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 110   --enable-raise-major     increase major version numbers in sonames [no]
 111
 112 Program options:
 113   --disable-programs       do not build command line programs
 114   --disable-ffmpeg         disable ffmpeg build
 115   --disable-ffplay         disable ffplay build
 116   --disable-ffprobe        disable ffprobe build
 117   --disable-ffserver       disable ffserver build
 118
 119 Documentation options:
 120   --disable-doc            do not build documentation
 121   --disable-htmlpages      do not build HTML documentation pages
 122   --disable-manpages       do not build man documentation pages
 123   --disable-podpages       do not build POD documentation pages
 124   --disable-txtpages       do not build text documentation pages
 125
 126 Component options:
 127   --disable-avdevice       disable libavdevice build
 128   --disable-avcodec        disable libavcodec build
 129   --disable-avformat       disable libavformat build
 130   --disable-avutil         disable libavutil build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [auto]
 137   --disable-w32threads     disable Win32 threads [auto]
 138   --disable-os2threads     disable OS/2 threads [auto]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-pixelutils     disable pixel utils in libavutil
 149
 150 Hardware accelerators:
 151   --disable-dxva2          disable DXVA2 code [autodetect]
 152   --disable-vaapi          disable VAAPI code [autodetect]
 153   --disable-vda            disable VDA code [autodetect]
 154   --disable-vdpau          disable VDPAU code [autodetect]
 155
 156 Individual component options:
 157   --disable-everything     disable all components listed below
 158   --disable-encoder=NAME   disable encoder NAME
 159   --enable-encoder=NAME    enable encoder NAME
 160   --disable-encoders       disable all encoders
 161   --disable-decoder=NAME   disable decoder NAME
 162   --enable-decoder=NAME    enable decoder NAME
 163   --disable-decoders       disable all decoders
 164   --disable-hwaccel=NAME   disable hwaccel NAME
 165   --enable-hwaccel=NAME    enable hwaccel NAME
 166   --disable-hwaccels       disable all hwaccels
 167   --disable-muxer=NAME     disable muxer NAME
 168   --enable-muxer=NAME      enable muxer NAME
 169   --disable-muxers         disable all muxers
 170   --disable-demuxer=NAME   disable demuxer NAME
 171   --enable-demuxer=NAME    enable demuxer NAME
 172   --disable-demuxers       disable all demuxers
 173   --enable-parser=NAME     enable parser NAME
 174   --disable-parser=NAME    disable parser NAME
 175   --disable-parsers        disable all parsers
 176   --enable-bsf=NAME        enable bitstream filter NAME
 177   --disable-bsf=NAME       disable bitstream filter NAME
 178   --disable-bsfs           disable all bitstream filters
 179   --enable-protocol=NAME   enable protocol NAME
 180   --disable-protocol=NAME  disable protocol NAME
 181   --disable-protocols      disable all protocols
 182   --enable-indev=NAME      enable input device NAME
 183   --disable-indev=NAME     disable input device NAME
 184   --disable-indevs         disable input devices
 185   --enable-outdev=NAME     enable output device NAME
 186   --disable-outdev=NAME    disable output device NAME
 187   --disable-outdevs        disable output devices
 188   --disable-devices        disable all devices
 189   --enable-filter=NAME     enable filter NAME
 190   --disable-filter=NAME    disable filter NAME
 191   --disable-filters        disable all filters
 192
 193 External library support:
 194   --enable-avisynth        enable reading of AviSynth script files [no]
 195   --disable-bzlib          disable bzlib [autodetect]
 196   --enable-fontconfig      enable fontconfig
 197   --enable-frei0r          enable frei0r video filtering
 198   --enable-gnutls          enable gnutls [no]
 199   --disable-iconv          disable iconv [autodetect]
 200   --enable-ladspa          enable LADSPA audio filtering
 201   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 202   --enable-libass          enable libass subtitles rendering [no]
 203   --enable-libbluray       enable BluRay reading using libbluray [no]
 204   --enable-libbs2b         enable bs2b DSP library [no]
 205   --enable-libcaca         enable textual display using libcaca
 206   --enable-libcelt         enable CELT decoding via libcelt [no]
 207   --enable-libcdio         enable audio CD grabbing with libcdio
 208   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 209                            and libraw1394 [no]
 210   --enable-libfaac         enable AAC encoding via libfaac [no]
 211   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 212   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 213   --enable-libfreetype     enable libfreetype [no]
 214   --enable-libfribidi      enable libfribidi [no]
 215   --enable-libgme          enable Game Music Emu via libgme [no]
 216   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 217   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 218   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 219   --enable-libmodplug      enable ModPlug via libmodplug [no]
 220   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 221   --enable-libnut          enable NUT (de)muxing via libnut,
 222                            native (de)muxer exists [no]
 223   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 224   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 225   --enable-libopencv       enable video filtering via libopencv [no]
 226   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 227   --enable-libopus         enable Opus de/encoding via libopus [no]
 228   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 229   --enable-libquvi         enable quvi input via libquvi [no]
 230   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 231   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 232   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 233   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 234   --enable-libsoxr         enable Include libsoxr resampling [no]
 235   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 236   --enable-libssh          enable SFTP protocol via libssh [no]
 237   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 238   --enable-libtheora       enable Theora encoding via libtheora [no]
 239   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 240   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 241   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 242   --enable-libvidstab      enable video stabilization using vid.stab [no]
 243   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 244   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 245   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 246                            native implementation exists [no]
 247   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 248   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 249   --enable-libwebp         enable WebP encoding via libwebp [no]
 250   --enable-libx264         enable H.264 encoding via x264 [no]
 251   --enable-libx265         enable HEVC encoding via x265 [no]
 252   --enable-libxavs         enable AVS encoding via xavs [no]
 253   --enable-libxvid         enable Xvid encoding via xvidcore,
 254                            native MPEG-4/Xvid encoder exists [no]
 255   --enable-libzmq          enable message passing via libzmq [no]
 256   --enable-libzvbi         enable teletext support via libzvbi [no]
 257   --disable-lzma           disable lzma [autodetect]
 258   --enable-decklink        enable Blackmagick DeckLink output [no]
 259   --enable-openal          enable OpenAL 1.1 capture support [no]
 260   --enable-opencl          enable OpenCL code
 261   --enable-opengl          enable OpenGL rendering [no]
 262   --enable-openssl         enable openssl [no]
 263   --enable-x11grab         enable X11 grabbing [no]
 264   --disable-xlib           disable xlib [autodetect]
 265   --disable-zlib           disable zlib [autodetect]
 266
 267 Toolchain options:
 268   --arch=ARCH              select architecture [$arch]
 269   --cpu=CPU                select the minimum required CPU (affects
 270                            instruction selection, may crash on older CPUs)
 271   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 272   --progs-suffix=SUFFIX    program name suffix []
 273   --enable-cross-compile   assume a cross-compiler is used
 274   --sysroot=PATH           root of cross-build tree
 275   --sysinclude=PATH        location of cross-build system headers
 276   --target-os=OS           compiler targets OS [$target_os]
 277   --target-exec=CMD        command to run executables on target
 278   --target-path=DIR        path to view of build directory on target
 279   --target-samples=DIR     path to samples directory on target
 280   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 281   --toolchain=NAME         set tool defaults according to NAME
 282   --nm=NM                  use nm tool NM [$nm_default]
 283   --ar=AR                  use archive tool AR [$ar_default]
 284   --as=AS                  use assembler AS [$as_default]
 285   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 286   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 287   --cc=CC                  use C compiler CC [$cc_default]
 288   --cxx=CXX                use C compiler CXX [$cxx_default]
 289   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 290   --ld=LD                  use linker LD [$ld_default]
 291   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 292   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 293   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 294   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 295   --host-cc=HOSTCC         use host C compiler HOSTCC
 296   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 297   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 298   --host-ld=HOSTLD         use host linker HOSTLD
 299   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 300   --host-libs=HLIBS        use libs HLIBS when linking for host
 301   --host-os=OS             compiler host OS [$target_os]
 302   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 303   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 304   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 305   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 306   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 307   --extra-version=STRING   version string suffix []
 308   --optflags=OPTFLAGS      override optimization-related compiler flags
 309   --build-suffix=SUFFIX    library name suffix []
 310   --enable-pic             build position-independent code
 311   --enable-thumb           compile for Thumb instruction set
 312   --enable-lto             use link-time optimization
 313
 314 Advanced options (experts only):
 315   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 316   --disable-symver         disable symbol versioning
 317   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 318   --disable-safe-bitstream-reader
 319                            disable buffer boundary checking in bitreaders
 320                            (faster, but may crash)
 321   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 322   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 323
 324 Optimization options (experts only):
 325   --disable-asm            disable all assembly optimizations
 326   --disable-altivec        disable AltiVec optimizations
 327   --disable-amd3dnow       disable 3DNow! optimizations
 328   --disable-amd3dnowext    disable 3DNow! extended optimizations
 329   --disable-mmx            disable MMX optimizations
 330   --disable-mmxext         disable MMXEXT optimizations
 331   --disable-sse            disable SSE optimizations
 332   --disable-sse2           disable SSE2 optimizations
 333   --disable-sse3           disable SSE3 optimizations
 334   --disable-ssse3          disable SSSE3 optimizations
 335   --disable-sse4           disable SSE4 optimizations
 336   --disable-sse42          disable SSE4.2 optimizations
 337   --disable-avx            disable AVX optimizations
 338   --disable-xop            disable XOP optimizations
 339   --disable-fma3           disable FMA3 optimizations
 340   --disable-fma4           disable FMA4 optimizations
 341   --disable-avx2           disable AVX2 optimizations
 342   --disable-armv5te        disable armv5te optimizations
 343   --disable-armv6          disable armv6 optimizations
 344   --disable-armv6t2        disable armv6t2 optimizations
 345   --disable-vfp            disable VFP optimizations
 346   --disable-neon           disable NEON optimizations
 347   --disable-inline-asm     disable use of inline assembly
 348   --disable-yasm           disable use of nasm/yasm assembly
 349   --disable-mips32r2       disable MIPS32R2 optimizations
 350   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 351   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 352   --disable-mipsfpu        disable floating point MIPS optimizations
 353   --disable-fast-unaligned consider unaligned accesses slow
 354
 355 Developer options (useful when working on FFmpeg itself):
 356   --disable-debug          disable debugging symbols
 357   --enable-debug=LEVEL     set the debug level [$debuglevel]
 358   --disable-optimizations  disable compiler optimizations
 359   --enable-extra-warnings  enable more compiler warnings
 360   --disable-stripping      disable stripping of executables and shared libraries
 361   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 362                            2 causes a slowdown at runtime.
 363   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 364   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 365                            leaks and errors, using the specified valgrind binary.
 366                            Cannot be combined with --target-exec
 367   --enable-ftrapv          Trap arithmetic overflows
 368   --samples=PATH           location of test samples for FATE, if not set use
 369                            \$FATE_SAMPLES at make invocation time.
 370   --enable-neon-clobber-test check NEON registers for clobbering (should be
 371                            used only for debugging purposes)
 372   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 373                            should be used only for debugging purposes)
 374   --enable-random          randomly enable/disable components
 375   --disable-random
 376   --enable-random=LIST     randomly enable/disable specific components or
 377   --disable-random=LIST    component groups. LIST is a comma-separated list
 378                            of NAME[:PROB] entries where NAME is a component
 379                            (group) and PROB the probability associated with
 380                            NAME (default 0.5).
 381   --random-seed=VALUE      seed value for --enable/disable-random
 382
 383 NOTE: Object files are built at the place where configure is launched.
 384 EOF
 385   exit 0
 386 }
 387
 388 quotes='""'
 389
 390 log(){
 391     echo "$@" >> $logfile
 392 }
 393
 394 log_file(){
 395     log BEGIN $1
 396     pr -n -t $1 >> $logfile
 397     log END $1
 398 }
 399
 400 echolog(){
 401     log "$@"
 402     echo "$@"
 403 }
 404
 405 warn(){
 406     log "WARNING: $*"
 407     WARNINGS="${WARNINGS}WARNING: $*\n"
 408 }
 409
 410 die(){
 411     echolog "$@"
 412     cat <<EOF
 413
 414 If you think configure made a mistake, make sure you are using the latest
 415 version from Git.  If the latest version fails, report the problem to the
 416 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 417 EOF
 418     if disabled logging; then
 419         cat <<EOF
 420 Rerun configure with logging enabled (do not use --disable-logging), and
 421 include the log this produces with your report.
 422 EOF
 423     else
 424         cat <<EOF
 425 Include the log file "$logfile" produced by configure as this will help
 426 solve the problem.
 427 EOF
 428     fi
 429     exit 1
 430 }
 431
 432 # Avoid locale weirdness, besides we really just want to translate ASCII.
 433 toupper(){
 434     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 435 }
 436
 437 tolower(){
 438     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 439 }
 440
 441 c_escape(){
 442     echo "$*" | sed 's/["\\]/\\\0/g'
 443 }
 444
 445 sh_quote(){
 446     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 447     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 448     echo "$v"
 449 }
 450
 451 cleanws(){
 452     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 453 }
 454
 455 filter(){
 456     pat=$1
 457     shift
 458     for v; do
 459         eval "case $v in $pat) echo $v ;; esac"
 460     done
 461 }
 462
 463 filter_out(){
 464     pat=$1
 465     shift
 466     for v; do
 467         eval "case $v in $pat) ;; *) echo $v ;; esac"
 468     done
 469 }
 470
 471 map(){
 472     m=$1
 473     shift
 474     for v; do eval $m; done
 475 }
 476
 477 add_suffix(){
 478     suffix=$1
 479     shift
 480     for v; do echo ${v}${suffix}; done
 481 }
 482
 483 set_all(){
 484     value=$1
 485     shift
 486     for var in $*; do
 487         eval $var=$value
 488     done
 489 }
 490
 491 set_weak(){
 492     value=$1
 493     shift
 494     for var; do
 495         eval : \${$var:=$value}
 496     done
 497 }
 498
 499 sanitize_var_name(){
 500     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 501 }
 502
 503 set_safe(){
 504     var=$1
 505     shift
 506     eval $(sanitize_var_name "$var")='$*'
 507 }
 508
 509 get_safe(){
 510     eval echo \$$(sanitize_var_name "$1")
 511 }
 512
 513 pushvar(){
 514     for pvar in $*; do
 515         eval level=\${${pvar}_level:=0}
 516         eval ${pvar}_${level}="\$$pvar"
 517         eval ${pvar}_level=$(($level+1))
 518     done
 519 }
 520
 521 popvar(){
 522     for pvar in $*; do
 523         eval level=\${${pvar}_level:-0}
 524         test $level = 0 && continue
 525         eval level=$(($level-1))
 526         eval $pvar="\${${pvar}_${level}}"
 527         eval ${pvar}_level=$level
 528         eval unset ${pvar}_${level}
 529     done
 530 }
 531
 532 enable(){
 533     set_all yes $*
 534 }
 535
 536 disable(){
 537     set_all no $*
 538 }
 539
 540 enable_weak(){
 541     set_weak yes $*
 542 }
 543
 544 disable_weak(){
 545     set_weak no $*
 546 }
 547
 548 enable_safe(){
 549     for var; do
 550         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 551     done
 552 }
 553
 554 disable_safe(){
 555     for var; do
 556         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 557     done
 558 }
 559
 560 do_enable_deep(){
 561     for var; do
 562         enabled $var && continue
 563         eval sel="\$${var}_select"
 564         eval sgs="\$${var}_suggest"
 565         pushvar var sgs
 566         enable_deep $sel
 567         popvar sgs
 568         enable_deep_weak $sgs
 569         popvar var
 570     done
 571 }
 572
 573 enable_deep(){
 574     do_enable_deep $*
 575     enable $*
 576 }
 577
 578 enable_deep_weak(){
 579     for var; do
 580         disabled $var && continue
 581         pushvar var
 582         do_enable_deep $var
 583         popvar var
 584         enable_weak $var
 585     done
 586 }
 587
 588 enabled(){
 589     test "${1#!}" = "$1" && op== || op=!=
 590     eval test "x\$${1#!}" $op "xyes"
 591 }
 592
 593 disabled(){
 594     test "${1#!}" = "$1" && op== || op=!=
 595     eval test "x\$${1#!}" $op "xno"
 596 }
 597
 598 enabled_all(){
 599     for opt; do
 600         enabled $opt || return 1
 601     done
 602 }
 603
 604 disabled_all(){
 605     for opt; do
 606         disabled $opt || return 1
 607     done
 608 }
 609
 610 enabled_any(){
 611     for opt; do
 612         enabled $opt && return 0
 613     done
 614 }
 615
 616 disabled_any(){
 617     for opt; do
 618         disabled $opt && return 0
 619     done
 620     return 1
 621 }
 622
 623 set_default(){
 624     for opt; do
 625         eval : \${$opt:=\$${opt}_default}
 626     done
 627 }
 628
 629 is_in(){
 630     value=$1
 631     shift
 632     for var in $*; do
 633         [ $var = $value ] && return 0
 634     done
 635     return 1
 636 }
 637
 638 do_check_deps(){
 639     for cfg; do
 640         cfg="${cfg#!}"
 641         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 642         disabled ${cfg}_checking && continue
 643         enable ${cfg}_checking
 644         append allopts $cfg
 645
 646         eval dep_all="\$${cfg}_deps"
 647         eval dep_any="\$${cfg}_deps_any"
 648         eval dep_sel="\$${cfg}_select"
 649         eval dep_sgs="\$${cfg}_suggest"
 650         eval dep_ifa="\$${cfg}_if"
 651         eval dep_ifn="\$${cfg}_if_any"
 652
 653         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 654         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 655         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 656
 657         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 658         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 659         enabled_all  $dep_all || disable $cfg
 660         enabled_any  $dep_any || disable $cfg
 661         disabled_any $dep_sel && disable $cfg
 662
 663         if enabled $cfg; then
 664             enable_deep $dep_sel
 665             enable_deep_weak $dep_sgs
 666         fi
 667
 668         disable ${cfg}_checking
 669     done
 670 }
 671
 672 check_deps(){
 673     unset allopts
 674
 675     do_check_deps "$@"
 676
 677     for cfg in $allopts; do
 678         enabled $cfg || continue
 679         eval dep_extralibs="\$${cfg}_extralibs"
 680         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 681     done
 682 }
 683
 684 print_config(){
 685     pfx=$1
 686     files=$2
 687     shift 2
 688     map 'eval echo "$v \${$v:-no}"' "$@" |
 689     awk "BEGIN { split(\"$files\", files) }
 690         {
 691             c = \"$pfx\" toupper(\$1);
 692             v = \$2;
 693             sub(/yes/, 1, v);
 694             sub(/no/,  0, v);
 695             for (f in files) {
 696                 file = files[f];
 697                 if (file ~ /\\.h\$/) {
 698                     printf(\"#define %s %d\\n\", c, v) >>file;
 699                 } else if (file ~ /\\.asm\$/) {
 700                     printf(\"%%define %s %d\\n\", c, v) >>file;
 701                 } else if (file ~ /\\.mak\$/) {
 702                     n = -v ? \"\" : \"!\";
 703                     printf(\"%s%s=yes\\n\", n, c) >>file;
 704                 } else if (file ~ /\\.texi\$/) {
 705                     pre = -v ? \"\" : \"@c \";
 706                     yesno = \$2;
 707                     c2 = tolower(c);
 708                     gsub(/_/, \"-\", c2);
 709                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 710                 }
 711             }
 712         }"
 713 }
 714
 715 print_enabled(){
 716     suf=$1
 717     shift
 718     for v; do
 719         enabled $v && printf "%s\n" ${v%$suf};
 720     done
 721 }
 722
 723 append(){
 724     var=$1
 725     shift
 726     eval "$var=\"\$$var $*\""
 727 }
 728
 729 prepend(){
 730     var=$1
 731     shift
 732     eval "$var=\"$* \$$var\""
 733 }
 734
 735 unique(){
 736     var=$1
 737     uniq_list=""
 738     for tok in $(eval echo \$$var); do
 739         uniq_list="$(filter_out $tok $uniq_list) $tok"
 740     done
 741     eval "$var=\"${uniq_list}\""
 742 }
 743
 744 add_cppflags(){
 745     append CPPFLAGS "$@"
 746 }
 747
 748 add_cflags(){
 749     append CFLAGS $($cflags_filter "$@")
 750 }
 751
 752 add_cxxflags(){
 753     append CXXFLAGS $($cflags_filter "$@")
 754 }
 755
 756 add_asflags(){
 757     append ASFLAGS $($asflags_filter "$@")
 758 }
 759
 760 add_ldflags(){
 761     append LDFLAGS $($ldflags_filter "$@")
 762 }
 763
 764 add_ldexeflags(){
 765     append LDEXEFLAGS $($ldflags_filter "$@")
 766 }
 767
 768 add_stripflags(){
 769     append ASMSTRIPFLAGS "$@"
 770 }
 771
 772 add_extralibs(){
 773     prepend extralibs $($ldflags_filter "$@")
 774 }
 775
 776 add_host_cppflags(){
 777     append host_cppflags "$@"
 778 }
 779
 780 add_host_cflags(){
 781     append host_cflags $($host_cflags_filter "$@")
 782 }
 783
 784 add_host_ldflags(){
 785     append host_ldflags $($host_ldflags_filter "$@")
 786 }
 787
 788 add_compat(){
 789     append compat_objs $1
 790     shift
 791     map 'add_cppflags -D$v' "$@"
 792 }
 793
 794 check_cmd(){
 795     log "$@"
 796     "$@" >> $logfile 2>&1
 797 }
 798
 799 check_stat(){
 800     log check_stat "$@"
 801     stat "$1" >> $logfile 2>&1
 802 }
 803
 804 cc_o(){
 805     eval printf '%s\\n' $CC_O
 806 }
 807
 808 cc_e(){
 809     eval printf '%s\\n' $CC_E
 810 }
 811
 812 check_cc(){
 813     log check_cc "$@"
 814     cat > $TMPC
 815     log_file $TMPC
 816     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 817 }
 818
 819 check_cxx(){
 820     log check_cxx "$@"
 821     cat > $TMPCPP
 822     log_file $TMPCPP
 823     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 824 }
 825
 826 check_oc(){
 827     log check_oc "$@"
 828     cat > $TMPM
 829     log_file $TMPM
 830     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 831 }
 832
 833 check_cpp(){
 834     log check_cpp "$@"
 835     cat > $TMPC
 836     log_file $TMPC
 837     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 838 }
 839
 840 as_o(){
 841     eval printf '%s\\n' $AS_O
 842 }
 843
 844 check_as(){
 845     log check_as "$@"
 846     cat > $TMPS
 847     log_file $TMPS
 848     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 849 }
 850
 851 check_inline_asm(){
 852     log check_inline_asm "$@"
 853     name="$1"
 854     code="$2"
 855     shift 2
 856     disable $name
 857     check_cc "$@" <<EOF && enable $name
 858 void foo(void){ __asm__ volatile($code); }
 859 EOF
 860 }
 861
 862 check_insn(){
 863     log check_insn "$@"
 864     check_inline_asm ${1}_inline "\"$2\""
 865     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 866 }
 867
 868 check_yasm(){
 869     log check_yasm "$@"
 870     echo "$1" > $TMPS
 871     log_file $TMPS
 872     shift 1
 873     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 874 }
 875
 876 ld_o(){
 877     eval printf '%s\\n' $LD_O
 878 }
 879
 880 check_ld(){
 881     log check_ld "$@"
 882     type=$1
 883     shift 1
 884     flags=$(filter_out '-l*|*.so' $@)
 885     libs=$(filter '-l*|*.so' $@)
 886     check_$type $($cflags_filter $flags) || return
 887     flags=$($ldflags_filter $flags)
 888     libs=$($ldflags_filter $libs)
 889     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 890 }
 891
 892 print_include(){
 893     hdr=$1
 894     test "${hdr%.h}" = "${hdr}" &&
 895         echo "#include $hdr"    ||
 896         echo "#include <$hdr>"
 897 }
 898
 899 check_code(){
 900     log check_code "$@"
 901     check=$1
 902     headers=$2
 903     code=$3
 904     shift 3
 905     {
 906         for hdr in $headers; do
 907             print_include $hdr
 908         done
 909         echo "int main(void) { $code; return 0; }"
 910     } | check_$check "$@"
 911 }
 912
 913 check_cppflags(){
 914     log check_cppflags "$@"
 915     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 916 int x;
 917 EOF
 918 }
 919
 920 test_cflags(){
 921     log test_cflags "$@"
 922     set -- $($cflags_filter "$@")
 923     check_cc "$@" <<EOF
 924 int x;
 925 EOF
 926 }
 927
 928 check_cflags(){
 929     log check_cflags "$@"
 930     test_cflags "$@" && add_cflags "$@"
 931 }
 932
 933 check_cxxflags(){
 934     log check_cxxflags "$@"
 935     set -- $($cflags_filter "$@")
 936     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 937 int x;
 938 EOF
 939 }
 940
 941 test_ldflags(){
 942     log test_ldflags "$@"
 943     check_ld "cc" "$@" <<EOF
 944 int main(void){ return 0; }
 945 EOF
 946 }
 947
 948 check_ldflags(){
 949     log check_ldflags "$@"
 950     test_ldflags "$@" && add_ldflags "$@"
 951 }
 952
 953 test_stripflags(){
 954     log test_stripflags "$@"
 955     # call check_cc to get a fresh TMPO
 956     check_cc <<EOF
 957 int main(void) { return 0; }
 958 EOF
 959     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 960 }
 961
 962 check_stripflags(){
 963     log check_stripflags "$@"
 964     test_stripflags "$@" && add_stripflags "$@"
 965 }
 966
 967 check_header(){
 968     log check_header "$@"
 969     header=$1
 970     shift
 971     disable_safe $header
 972     check_cpp "$@" <<EOF && enable_safe $header
 973 #include <$header>
 974 int x;
 975 EOF
 976 }
 977
 978 check_header_oc(){
 979     log check_header_oc "$@"
 980     rm -f -- "$TMPO"
 981     header=$1
 982     shift
 983     disable_safe $header
 984     {
 985        echo "#include <$header>"
 986        echo "int main(void) { return 0; }"
 987     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 988 }
 989
 990 check_func(){
 991     log check_func "$@"
 992     func=$1
 993     shift
 994     disable $func
 995     check_ld "cc" "$@" <<EOF && enable $func
 996 extern int $func();
 997 int main(void){ $func(); }
 998 EOF
 999 }
1000
1001 check_mathfunc(){
1002     log check_mathfunc "$@"
1003     func=$1
1004     narg=$2
1005     shift 2
1006     test $narg = 2 && args="f, g" || args="f"
1007     disable $func
1008     check_ld "cc" "$@" <<EOF && enable $func
1009 #include <math.h>
1010 float foo(float f, float g) { return $func($args); }
1011 int main(void){ return (int) foo; }
1012 EOF
1013 }
1014
1015 check_func_headers(){
1016     log check_func_headers "$@"
1017     headers=$1
1018     funcs=$2
1019     shift 2
1020     {
1021         for hdr in $headers; do
1022             print_include $hdr
1023         done
1024         for func in $funcs; do
1025             echo "long check_$func(void) { return (long) $func; }"
1026         done
1027         echo "int main(void) { return 0; }"
1028     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1029 }
1030
1031 check_class_headers_cpp(){
1032     log check_class_headers_cpp "$@"
1033     headers=$1
1034     classes=$2
1035     shift 2
1036     {
1037         for hdr in $headers; do
1038             echo "#include <$hdr>"
1039         done
1040         echo "int main(void) { "
1041         i=1
1042         for class in $classes; do
1043             echo "$class obj$i;"
1044             i=$(expr $i + 1)
1045         done
1046         echo "return 0; }"
1047     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1048 }
1049
1050 check_cpp_condition(){
1051     log check_cpp_condition "$@"
1052     header=$1
1053     condition=$2
1054     shift 2
1055     check_cpp "$@" <<EOF
1056 #include <$header>
1057 #if !($condition)
1058 #error "unsatisfied condition: $condition"
1059 #endif
1060 EOF
1061 }
1062
1063 check_lib(){
1064     log check_lib "$@"
1065     header="$1"
1066     func="$2"
1067     shift 2
1068     check_header $header && check_func $func "$@" && add_extralibs "$@"
1069 }
1070
1071 check_lib2(){
1072     log check_lib2 "$@"
1073     headers="$1"
1074     funcs="$2"
1075     shift 2
1076     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1077 }
1078
1079 check_lib_cpp(){
1080     log check_lib_cpp "$@"
1081     headers="$1"
1082     classes="$2"
1083     shift 2
1084     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1085 }
1086
1087 check_pkg_config(){
1088     log check_pkg_config "$@"
1089     pkgandversion="$1"
1090     pkg="${1%% *}"
1091     headers="$2"
1092     funcs="$3"
1093     shift 3
1094     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1095     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1096     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1097     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1098         set_safe ${pkg}_cflags $pkg_cflags   &&
1099         set_safe ${pkg}_libs   $pkg_libs
1100 }
1101
1102 check_exec(){
1103     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1104 }
1105
1106 check_exec_crash(){
1107     code=$(cat)
1108
1109     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1110     # are safe but may not be available everywhere.  Thus we use
1111     # raise(SIGTERM) instead.  The check is run in a subshell so we
1112     # can redirect the "Terminated" message from the shell.  SIGBUS
1113     # is not defined by standard C so it is used conditionally.
1114
1115     (check_exec "$@") >> $logfile 2>&1 <<EOF
1116 #include <signal.h>
1117 static void sighandler(int sig){
1118     raise(SIGTERM);
1119 }
1120 int foo(void){
1121     $code
1122 }
1123 int (*func_ptr)(void) = foo;
1124 int main(void){
1125     signal(SIGILL, sighandler);
1126     signal(SIGFPE, sighandler);
1127     signal(SIGSEGV, sighandler);
1128 #ifdef SIGBUS
1129     signal(SIGBUS, sighandler);
1130 #endif
1131     return func_ptr();
1132 }
1133 EOF
1134 }
1135
1136 check_type(){
1137     log check_type "$@"
1138     headers=$1
1139     type=$2
1140     shift 2
1141     disable_safe "$type"
1142     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1143 }
1144
1145 check_struct(){
1146     log check_struct "$@"
1147     headers=$1
1148     struct=$2
1149     member=$3
1150     shift 3
1151     disable_safe "${struct}_${member}"
1152     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1153         enable_safe "${struct}_${member}"
1154 }
1155
1156 check_builtin(){
1157     log check_builtin "$@"
1158     name=$1
1159     headers=$2
1160     builtin=$3
1161     shift 3
1162     disable "$name"
1163     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1164 }
1165
1166 check_compile_assert(){
1167     log check_compile_assert "$@"
1168     name=$1
1169     headers=$2
1170     condition=$3
1171     shift 3
1172     disable "$name"
1173     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1174 }
1175
1176 require(){
1177     name="$1"
1178     header="$2"
1179     func="$3"
1180     shift 3
1181     check_lib $header $func "$@" || die "ERROR: $name not found"
1182 }
1183
1184 require2(){
1185     name="$1"
1186     headers="$2"
1187     func="$3"
1188     shift 3
1189     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1190 }
1191
1192 require_cpp(){
1193     name="$1"
1194     headers="$2"
1195     classes="$3"
1196     shift 3
1197     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1198 }
1199
1200 require_pkg_config(){
1201     pkg="$1"
1202     check_pkg_config "$@" || die "ERROR: $pkg not found"
1203     add_cflags    $(get_safe ${pkg}_cflags)
1204     add_extralibs $(get_safe ${pkg}_libs)
1205 }
1206
1207 require_libfreetype(){
1208     log require_libfreetype "$@"
1209     pkg="freetype2"
1210     check_cmd $pkg_config --exists --print-errors $pkg \
1211       || die "ERROR: $pkg not found"
1212     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1213     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1214     {
1215         echo "#include <ft2build.h>"
1216         echo "#include FT_FREETYPE_H"
1217         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1218         echo "int main(void) { return 0; }"
1219     } | check_ld "cc" $pkg_cflags $pkg_libs \
1220       && set_safe ${pkg}_cflags $pkg_cflags \
1221       && set_safe ${pkg}_libs   $pkg_libs \
1222       || die "ERROR: $pkg not found"
1223     add_cflags    $(get_safe ${pkg}_cflags)
1224     add_extralibs $(get_safe ${pkg}_libs)
1225 }
1226
1227 hostcc_e(){
1228     eval printf '%s\\n' $HOSTCC_E
1229 }
1230
1231 hostcc_o(){
1232     eval printf '%s\\n' $HOSTCC_O
1233 }
1234
1235 check_host_cc(){
1236     log check_host_cc "$@"
1237     cat > $TMPC
1238     log_file $TMPC
1239     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1240 }
1241
1242 check_host_cpp(){
1243     log check_host_cpp "$@"
1244     cat > $TMPC
1245     log_file $TMPC
1246     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1247 }
1248
1249 check_host_cppflags(){
1250     log check_host_cppflags "$@"
1251     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1252 int x;
1253 EOF
1254 }
1255
1256 check_host_cflags(){
1257     log check_host_cflags "$@"
1258     set -- $($host_cflags_filter "$@")
1259     check_host_cc "$@" <<EOF && append host_cflags "$@"
1260 int x;
1261 EOF
1262 }
1263
1264 check_host_cpp_condition(){
1265     log check_host_cpp_condition "$@"
1266     header=$1
1267     condition=$2
1268     shift 2
1269     check_host_cpp "$@" <<EOF
1270 #include <$header>
1271 #if !($condition)
1272 #error "unsatisfied condition: $condition"
1273 #endif
1274 EOF
1275 }
1276
1277 apply(){
1278     file=$1
1279     shift
1280     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1281 }
1282
1283 cp_if_changed(){
1284     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1285     mkdir -p "$(dirname $2)"
1286     $cp_f "$1" "$2"
1287 }
1288
1289 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1290 # system-dependent things.
1291
1292 COMPONENT_LIST="
1293     bsfs
1294     decoders
1295     demuxers
1296     encoders
1297     filters
1298     hwaccels
1299     indevs
1300     muxers
1301     outdevs
1302     parsers
1303     protocols
1304 "
1305
1306 EXAMPLE_LIST="
1307     avio_reading_example
1308     decoding_encoding_example
1309     demuxing_decoding_example
1310     extract_mvs_example
1311     filter_audio_example
1312     filtering_audio_example
1313     filtering_video_example
1314     metadata_example
1315     muxing_example
1316     remuxing_example
1317     resampling_audio_example
1318     scaling_video_example
1319     transcode_aac_example
1320     transcoding_example
1321 "
1322
1323 EXTERNAL_LIBRARY_LIST="
1324     avisynth
1325     bzlib
1326     crystalhd
1327     decklink
1328     frei0r
1329     gnutls
1330     iconv
1331     ladspa
1332     libaacplus
1333     libass
1334     libbluray
1335     libbs2b
1336     libcaca
1337     libcdio
1338     libcelt
1339     libdc1394
1340     libfaac
1341     libfdk_aac
1342     libflite
1343     libfontconfig
1344     libfreetype
1345     libfribidi
1346     libgme
1347     libgsm
1348     libiec61883
1349     libilbc
1350     libmodplug
1351     libmp3lame
1352     libnut
1353     libopencore_amrnb
1354     libopencore_amrwb
1355     libopencv
1356     libopenjpeg
1357     libopus
1358     libpulse
1359     libquvi
1360     librtmp
1361     libschroedinger
1362     libshine
1363     libsmbclient
1364     libsoxr
1365     libspeex
1366     libssh
1367     libstagefright_h264
1368     libtheora
1369     libtwolame
1370     libutvideo
1371     libv4l2
1372     libvidstab
1373     libvo_aacenc
1374     libvo_amrwbenc
1375     libvorbis
1376     libvpx
1377     libwavpack
1378     libwebp
1379     libx264
1380     libx265
1381     libxavs
1382     libxvid
1383     libzmq
1384     libzvbi
1385     lzma
1386     openal
1387     opencl
1388     opengl
1389     openssl
1390     x11grab
1391     xlib
1392     zlib
1393 "
1394
1395 DOCUMENT_LIST="
1396     doc
1397     htmlpages
1398     manpages
1399     podpages
1400     txtpages
1401 "
1402
1403 FEATURE_LIST="
1404     ftrapv
1405     gray
1406     hardcoded_tables
1407     runtime_cpudetect
1408     safe_bitstream_reader
1409     shared
1410     small
1411     static
1412     swscale_alpha
1413 "
1414
1415 HWACCEL_LIST="
1416     dxva2
1417     vaapi
1418     vda
1419     vdpau
1420     xvmc
1421 "
1422
1423 LIBRARY_LIST="
1424     avcodec
1425     avdevice
1426     avfilter
1427     avformat
1428     avresample
1429     avutil
1430     postproc
1431     swresample
1432     swscale
1433 "
1434
1435 LICENSE_LIST="
1436     gpl
1437     nonfree
1438     version3
1439 "
1440
1441 PROGRAM_LIST="
1442     ffplay
1443     ffprobe
1444     ffserver
1445     ffmpeg
1446 "
1447
1448 SUBSYSTEM_LIST="
1449     dct
1450     dwt
1451     error_resilience
1452     fast_unaligned
1453     fft
1454     lsp
1455     lzo
1456     mdct
1457     pixelutils
1458     network
1459     rdft
1460 "
1461
1462 CONFIG_LIST="
1463     $COMPONENT_LIST
1464     $DOCUMENT_LIST
1465     $EXAMPLE_LIST
1466     $EXTERNAL_LIBRARY_LIST
1467     $FEATURE_LIST
1468     $HWACCEL_LIST
1469     $LICENSE_LIST
1470     $LIBRARY_LIST
1471     $PROGRAM_LIST
1472     $SUBSYSTEM_LIST
1473     fontconfig
1474     incompatible_libav_abi
1475     memalign_hack
1476     memory_poisoning
1477     neon_clobber_test
1478     pic
1479     pod2man
1480     raise_major
1481     thumb
1482     xmm_clobber_test
1483 "
1484
1485 THREADS_LIST="
1486     pthreads
1487     os2threads
1488     w32threads
1489 "
1490
1491 ATOMICS_LIST="
1492     atomics_gcc
1493     atomics_suncc
1494     atomics_win32
1495 "
1496
1497 ARCH_LIST="
1498     aarch64
1499     alpha
1500     arm
1501     avr32
1502     avr32_ap
1503     avr32_uc
1504     bfin
1505     ia64
1506     m68k
1507     mips
1508     mips64
1509     parisc
1510     ppc
1511     ppc64
1512     s390
1513     sh4
1514     sparc
1515     sparc64
1516     tilegx
1517     tilepro
1518     tomi
1519     x86
1520     x86_32
1521     x86_64
1522 "
1523
1524 ARCH_EXT_LIST_ARM="
1525     armv5te
1526     armv6
1527     armv6t2
1528     armv8
1529     neon
1530     vfp
1531     vfpv3
1532     setend
1533 "
1534
1535 ARCH_EXT_LIST_MIPS="
1536     mipsfpu
1537     mips32r2
1538     mipsdspr1
1539     mipsdspr2
1540 "
1541
1542 ARCH_EXT_LIST_X86_SIMD="
1543     amd3dnow
1544     amd3dnowext
1545     avx
1546     avx2
1547     fma3
1548     fma4
1549     mmx
1550     mmxext
1551     sse
1552     sse2
1553     sse3
1554     sse4
1555     sse42
1556     ssse3
1557     xop
1558 "
1559
1560 ARCH_EXT_LIST_PPC="
1561     altivec
1562     dcbzl
1563     ldbrx
1564     ppc4xx
1565     vsx
1566 "
1567
1568 ARCH_EXT_LIST_X86="
1569     $ARCH_EXT_LIST_X86_SIMD
1570     cpunop
1571     i686
1572 "
1573
1574 ARCH_EXT_LIST="
1575     $ARCH_EXT_LIST_ARM
1576     $ARCH_EXT_LIST_PPC
1577     $ARCH_EXT_LIST_X86
1578     $ARCH_EXT_LIST_MIPS
1579     loongson
1580 "
1581
1582 ARCH_FEATURES="
1583     aligned_stack
1584     fast_64bit
1585     fast_clz
1586     fast_cmov
1587     local_aligned_8
1588     local_aligned_16
1589     local_aligned_32
1590     simd_align_16
1591 "
1592
1593 BUILTIN_LIST="
1594     atomic_cas_ptr
1595     machine_rw_barrier
1596     MemoryBarrier
1597     mm_empty
1598     rdtsc
1599     sarestart
1600     sync_val_compare_and_swap
1601 "
1602 HAVE_LIST_CMDLINE="
1603     inline_asm
1604     symver
1605     yasm
1606 "
1607
1608 HAVE_LIST_PUB="
1609     bigendian
1610     fast_unaligned
1611     incompatible_libav_abi
1612 "
1613
1614 HEADERS_LIST="
1615     alsa_asoundlib_h
1616     altivec_h
1617     arpa_inet_h
1618     asm_types_h
1619     cdio_paranoia_h
1620     cdio_paranoia_paranoia_h
1621     CL_cl_h
1622     dev_bktr_ioctl_bt848_h
1623     dev_bktr_ioctl_meteor_h
1624     dev_ic_bt8xx_h
1625     dev_video_bktr_ioctl_bt848_h
1626     dev_video_meteor_ioctl_meteor_h
1627     direct_h
1628     dlfcn_h
1629     dxva_h
1630     ES2_gl_h
1631     gsm_h
1632     io_h
1633     mach_mach_time_h
1634     machine_ioctl_bt848_h
1635     machine_ioctl_meteor_h
1636     malloc_h
1637     openjpeg_1_5_openjpeg_h
1638     OpenGL_gl3_h
1639     poll_h
1640     sndio_h
1641     soundcard_h
1642     sys_mman_h
1643     sys_param_h
1644     sys_resource_h
1645     sys_select_h
1646     sys_soundcard_h
1647     sys_time_h
1648     sys_un_h
1649     sys_videoio_h
1650     termios_h
1651     unistd_h
1652     windows_h
1653     winsock2_h
1654 "
1655
1656 INTRINSICS_LIST="
1657     intrinsics_neon
1658 "
1659
1660 MATH_FUNCS="
1661     atanf
1662     atan2f
1663     cbrt
1664     cbrtf
1665     cosf
1666     exp2
1667     exp2f
1668     expf
1669     fminf
1670     isinf
1671     isnan
1672     ldexpf
1673     llrint
1674     llrintf
1675     log2
1676     log2f
1677     log10f
1678     lrint
1679     lrintf
1680     powf
1681     rint
1682     round
1683     roundf
1684     sinf
1685     trunc
1686     truncf
1687 "
1688
1689 SYSTEM_FUNCS="
1690     access
1691     aligned_malloc
1692     clock_gettime
1693     closesocket
1694     CommandLineToArgvW
1695     CoTaskMemFree
1696     CryptGenRandom
1697     dlopen
1698     fcntl
1699     flt_lim
1700     fork
1701     getaddrinfo
1702     gethrtime
1703     getopt
1704     GetProcessAffinityMask
1705     GetProcessMemoryInfo
1706     GetProcessTimes
1707     getrusage
1708     getservbyport
1709     GetSystemTimeAsFileTime
1710     gettimeofday
1711     glob
1712     glXGetProcAddress
1713     inet_aton
1714     isatty
1715     jack_port_get_latency_range
1716     kbhit
1717     localtime_r
1718     lzo1x_999_compress
1719     mach_absolute_time
1720     MapViewOfFile
1721     memalign
1722     mkstemp
1723     mmap
1724     mprotect
1725     nanosleep
1726     PeekNamedPipe
1727     posix_memalign
1728     pthread_cancel
1729     sched_getaffinity
1730     SetConsoleTextAttribute
1731     setmode
1732     setrlimit
1733     Sleep
1734     strerror_r
1735     sysconf
1736     sysctl
1737     usleep
1738     VirtualAlloc
1739     wglGetProcAddress
1740 "
1741
1742 TOOLCHAIN_FEATURES="
1743     as_dn_directive
1744     as_func
1745     asm_mod_q
1746     attribute_may_alias
1747     attribute_packed
1748     ebp_available
1749     ebx_available
1750     gnu_as
1751     gnu_windres
1752     ibm_asm
1753     inline_asm_labels
1754     inline_asm_nonlocal_labels
1755     inline_asm_direct_symbol_refs
1756     pragma_deprecated
1757     rsync_contimeout
1758     symver_asm_label
1759     symver_gnu_asm
1760     vfp_args
1761     xform_asm
1762     xmm_clobbers
1763 "
1764
1765 TYPES_LIST="
1766     socklen_t
1767     struct_addrinfo
1768     struct_group_source_req
1769     struct_ip_mreq_source
1770     struct_ipv6_mreq
1771     struct_pollfd
1772     struct_rusage_ru_maxrss
1773     struct_sctp_event_subscribe
1774     struct_sockaddr_in6
1775     struct_sockaddr_sa_len
1776     struct_sockaddr_storage
1777     struct_stat_st_mtim_tv_nsec
1778     struct_v4l2_frmivalenum_discrete
1779 "
1780
1781 HAVE_LIST="
1782     $ARCH_EXT_LIST
1783     $(add_suffix _external $ARCH_EXT_LIST)
1784     $(add_suffix _inline   $ARCH_EXT_LIST)
1785     $ARCH_FEATURES
1786     $ATOMICS_LIST
1787     $BUILTIN_LIST
1788     $HAVE_LIST_CMDLINE
1789     $HAVE_LIST_PUB
1790     $HEADERS_LIST
1791     $INTRINSICS_LIST
1792     $MATH_FUNCS
1793     $SYSTEM_FUNCS
1794     $THREADS_LIST
1795     $TOOLCHAIN_FEATURES
1796     $TYPES_LIST
1797     atomics_native
1798     dos_paths
1799     dxva2api_cobj
1800     dxva2_lib
1801     libc_msvcrt
1802     libdc1394_1
1803     libdc1394_2
1804     makeinfo
1805     makeinfo_html
1806     perl
1807     pod2man
1808     sdl
1809     texi2html
1810     threads
1811     vdpau_x11
1812     xlib
1813 "
1814
1815 # options emitted with CONFIG_ prefix but not available on the command line
1816 CONFIG_EXTRA="
1817     aandcttables
1818     ac3dsp
1819     audio_frame_queue
1820     audiodsp
1821     blockdsp
1822     bswapdsp
1823     cabac
1824     dvprofile
1825     exif
1826     fdctdsp
1827     frame_thread_encoder
1828     gcrypt
1829     golomb
1830     gplv3
1831     h263dsp
1832     h264chroma
1833     h264dsp
1834     h264pred
1835     h264qpel
1836     hpeldsp
1837     huffman
1838     huffyuvdsp
1839     huffyuvencdsp
1840     idctdsp
1841     iirfilter
1842     intrax8
1843     lgplv3
1844     llauddsp
1845     llviddsp
1846     lpc
1847     me_cmp
1848     mpeg_er
1849     mpegaudio
1850     mpegaudiodsp
1851     mpegvideo
1852     mpegvideoenc
1853     nettle
1854     pixblockdsp
1855     qpeldsp
1856     rangecoder
1857     riffdec
1858     riffenc
1859     rtpdec
1860     rtpenc_chain
1861     sinewin
1862     startcode
1863     tpeldsp
1864     videodsp
1865     vp3dsp
1866     wma_freqs
1867 "
1868
1869 CMDLINE_SELECT="
1870     $ARCH_EXT_LIST
1871     $CONFIG_LIST
1872     $HAVE_LIST_CMDLINE
1873     $THREADS_LIST
1874     asm
1875     cross_compile
1876     debug
1877     extra_warnings
1878     logging
1879     lto
1880     optimizations
1881     rpath
1882     stripping
1883 "
1884
1885 PATHS_LIST="
1886     bindir
1887     datadir
1888     docdir
1889     incdir
1890     libdir
1891     mandir
1892     prefix
1893     shlibdir
1894 "
1895
1896 CMDLINE_SET="
1897     $PATHS_LIST
1898     ar
1899     arch
1900     as
1901     assert_level
1902     build_suffix
1903     cc
1904     cpu
1905     cross_prefix
1906     cxx
1907     dep_cc
1908     doxygen
1909     extra_version
1910     gas
1911     host_cc
1912     host_cflags
1913     host_ld
1914     host_ldflags
1915     host_libs
1916     host_os
1917     install
1918     ld
1919     logfile
1920     malloc_prefix
1921     nm
1922     optflags
1923     pkg_config
1924     pkg_config_flags
1925     progs_suffix
1926     random_seed
1927     ranlib
1928     samples
1929     strip
1930     sws_max_filter_size
1931     sysinclude
1932     sysroot
1933     target_exec
1934     target_os
1935     target_path
1936     target_samples
1937     tempprefix
1938     toolchain
1939     valgrind
1940     yasmexe
1941 "
1942
1943 CMDLINE_APPEND="
1944     extra_cflags
1945     extra_cxxflags
1946     host_cppflags
1947 "
1948
1949 # code dependency declarations
1950
1951 # architecture extensions
1952
1953 armv5te_deps="arm"
1954 armv6_deps="arm"
1955 armv6t2_deps="arm"
1956 armv8_deps="aarch64"
1957 neon_deps_any="aarch64 arm"
1958 intrinsics_neon_deps="neon"
1959 vfp_deps_any="aarch64 arm"
1960 vfpv3_deps="vfp"
1961 setend_deps="arm"
1962
1963 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1964
1965 mipsfpu_deps="mips"
1966 mips32r2_deps="mips"
1967 mipsdspr1_deps="mips"
1968 mipsdspr2_deps="mips"
1969
1970 altivec_deps="ppc"
1971 ppc4xx_deps="ppc"
1972 vsx_deps="ppc"
1973
1974 cpunop_deps="i686"
1975 x86_64_select="i686"
1976 x86_64_suggest="fast_cmov"
1977
1978 amd3dnow_deps="mmx"
1979 amd3dnowext_deps="amd3dnow"
1980 i686_deps="x86"
1981 mmx_deps="x86"
1982 mmxext_deps="mmx"
1983 sse_deps="mmxext"
1984 sse2_deps="sse"
1985 sse3_deps="sse2"
1986 ssse3_deps="sse3"
1987 sse4_deps="ssse3"
1988 sse42_deps="sse4"
1989 avx_deps="sse42"
1990 xop_deps="avx"
1991 fma3_deps="avx"
1992 fma4_deps="avx"
1993 avx2_deps="avx"
1994
1995 mmx_external_deps="yasm"
1996 mmx_inline_deps="inline_asm"
1997 mmx_suggest="mmx_external mmx_inline"
1998
1999 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2000     eval dep=\$${ext}_deps
2001     eval ${ext}_external_deps='"${dep}_external"'
2002     eval ${ext}_inline_deps='"${dep}_inline"'
2003     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2004 done
2005
2006 aligned_stack_if_any="aarch64 ppc x86"
2007 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2008 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2009 fast_unaligned_if_any="aarch64 ppc x86"
2010 simd_align_16_if_any="altivec neon sse"
2011
2012 # system capabilities
2013
2014 symver_if_any="symver_asm_label symver_gnu_asm"
2015
2016 # threading support
2017 atomics_gcc_if="sync_val_compare_and_swap"
2018 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2019 atomics_win32_if="MemoryBarrier"
2020 atomics_native_if_any="$ATOMICS_LIST"
2021 w32threads_deps="atomics_native"
2022 threads_if_any="$THREADS_LIST"
2023
2024 # subsystems
2025 dct_select="rdft"
2026 error_resilience_select="me_cmp"
2027 frame_thread_encoder_deps="encoders threads"
2028 intrax8_select="error_resilience"
2029 mdct_select="fft"
2030 rdft_select="fft"
2031 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2032 mpeg_er_select="error_resilience"
2033 mpegaudio_select="mpegaudiodsp"
2034 mpegaudiodsp_select="dct"
2035 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2036 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2037
2038 # decoders / encoders
2039 aac_decoder_select="mdct sinewin"
2040 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2041 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2042 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2043 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2044 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2045 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2046 aic_decoder_select="golomb idctdsp"
2047 alac_encoder_select="lpc"
2048 als_decoder_select="bswapdsp"
2049 amrnb_decoder_select="lsp"
2050 amrwb_decoder_select="lsp"
2051 amv_decoder_select="sp5x_decoder exif"
2052 amv_encoder_select="aandcttables mpegvideoenc"
2053 ape_decoder_select="bswapdsp llauddsp"
2054 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2055 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2056 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2057 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2058 atrac1_decoder_select="mdct sinewin"
2059 atrac3_decoder_select="mdct"
2060 atrac3p_decoder_select="mdct sinewin"
2061 avrn_decoder_select="exif"
2062 bink_decoder_select="blockdsp hpeldsp"
2063 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2064 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2065 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2066 cllc_decoder_select="bswapdsp"
2067 comfortnoise_encoder_select="lpc"
2068 cook_decoder_select="audiodsp mdct sinewin"
2069 cscd_decoder_select="lzo"
2070 cscd_decoder_suggest="zlib"
2071 dca_decoder_select="mdct"
2072 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2073 dnxhd_decoder_select="blockdsp idctdsp"
2074 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2075 dvvideo_decoder_select="dvprofile idctdsp"
2076 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2077 dxa_decoder_select="zlib"
2078 eac3_decoder_select="ac3_decoder"
2079 eac3_encoder_select="ac3_encoder"
2080 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2081 eatgq_decoder_select="aandcttables"
2082 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2083 exr_decoder_select="zlib"
2084 ffv1_decoder_select="golomb rangecoder"
2085 ffv1_encoder_select="rangecoder"
2086 ffvhuff_decoder_select="huffyuv_decoder"
2087 ffvhuff_encoder_select="huffyuv_encoder"
2088 fic_decoder_select="golomb"
2089 flac_decoder_select="golomb"
2090 flac_encoder_select="bswapdsp golomb lpc"
2091 flashsv_decoder_select="zlib"
2092 flashsv_encoder_select="zlib"
2093 flashsv2_encoder_select="zlib"
2094 flashsv2_decoder_select="zlib"
2095 flv_decoder_select="h263_decoder"
2096 flv_encoder_select="h263_encoder"
2097 fourxm_decoder_select="blockdsp bswapdsp"
2098 fraps_decoder_select="bswapdsp huffman"
2099 g2m_decoder_select="blockdsp idctdsp zlib"
2100 g729_decoder_select="audiodsp"
2101 h261_decoder_select="mpeg_er mpegvideo"
2102 h261_encoder_select="aandcttables mpegvideoenc"
2103 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2104 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2105 h263i_decoder_select="h263_decoder"
2106 h263p_encoder_select="h263_encoder"
2107 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2108 h264_decoder_suggest="error_resilience"
2109 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2110 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2111 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2112 iac_decoder_select="imc_decoder"
2113 imc_decoder_select="bswapdsp fft mdct sinewin"
2114 indeo3_decoder_select="hpeldsp"
2115 interplay_video_decoder_select="hpeldsp"
2116 jpegls_decoder_select="golomb mjpeg_decoder"
2117 jpegls_encoder_select="golomb"
2118 jv_decoder_select="blockdsp"
2119 lagarith_decoder_select="huffyuvdsp"
2120 ljpeg_encoder_select="aandcttables idctdsp"
2121 loco_decoder_select="golomb"
2122 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2123 metasound_decoder_select="lsp mdct sinewin"
2124 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2125 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2126 mjpeg_encoder_select="aandcttables mpegvideoenc"
2127 mjpegb_decoder_select="mjpeg_decoder"
2128 mlp_decoder_select="mlp_parser"
2129 motionpixels_decoder_select="bswapdsp"
2130 mp1_decoder_select="mpegaudio"
2131 mp1float_decoder_select="mpegaudio"
2132 mp2_decoder_select="mpegaudio"
2133 mp2float_decoder_select="mpegaudio"
2134 mp3_decoder_select="mpegaudio"
2135 mp3adu_decoder_select="mpegaudio"
2136 mp3adufloat_decoder_select="mpegaudio"
2137 mp3float_decoder_select="mpegaudio"
2138 mp3on4_decoder_select="mpegaudio"
2139 mp3on4float_decoder_select="mpegaudio"
2140 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2141 mpc8_decoder_select="mpegaudiodsp"
2142 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2143 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2144 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2145 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2146 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2147 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2148 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2149 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2150 mpeg4_encoder_select="h263_encoder"
2151 msmpeg4v1_decoder_select="h263_decoder"
2152 msmpeg4v2_decoder_select="h263_decoder"
2153 msmpeg4v2_encoder_select="h263_encoder"
2154 msmpeg4v3_decoder_select="h263_decoder"
2155 msmpeg4v3_encoder_select="h263_encoder"
2156 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2157 mxpeg_decoder_select="mjpeg_decoder"
2158 nellymoser_decoder_select="mdct sinewin"
2159 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2160 nuv_decoder_select="idctdsp lzo"
2161 on2avc_decoder_select="mdct"
2162 opus_decoder_deps="swresample"
2163 png_decoder_select="zlib"
2164 png_encoder_select="huffyuvencdsp zlib"
2165 prores_decoder_select="blockdsp idctdsp"
2166 prores_encoder_select="fdctdsp"
2167 qcelp_decoder_select="lsp"
2168 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2169 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2170 ra_144_decoder_select="audiodsp"
2171 ralf_decoder_select="golomb"
2172 rawvideo_decoder_select="bswapdsp"
2173 rtjpeg_decoder_select="me_cmp"
2174 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2175 rv10_encoder_select="h263_encoder"
2176 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2177 rv20_encoder_select="h263_encoder"
2178 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2179 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2180 shorten_decoder_select="golomb"
2181 sipr_decoder_select="lsp"
2182 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2183 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2184 sonic_decoder_select="golomb rangecoder"
2185 sonic_encoder_select="golomb rangecoder"
2186 sonic_ls_encoder_select="golomb rangecoder"
2187 sp5x_decoder_select="mjpeg_decoder"
2188 svq1_decoder_select="hpeldsp"
2189 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2190 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2191 svq3_decoder_suggest="zlib"
2192 tak_decoder_select="audiodsp"
2193 theora_decoder_select="vp3_decoder"
2194 thp_decoder_select="mjpeg_decoder"
2195 tiff_decoder_suggest="zlib lzma"
2196 tiff_encoder_suggest="zlib"
2197 truehd_decoder_select="mlp_parser"
2198 truemotion2_decoder_select="bswapdsp"
2199 truespeech_decoder_select="bswapdsp"
2200 tscc_decoder_select="zlib"
2201 twinvq_decoder_select="mdct lsp sinewin"
2202 utvideo_decoder_select="bswapdsp"
2203 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2204 vble_decoder_select="huffyuvdsp"
2205 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2206 vc1image_decoder_select="vc1_decoder"
2207 vorbis_decoder_select="mdct"
2208 vorbis_encoder_select="mdct"
2209 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2210 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2211 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2212 vp6a_decoder_select="vp6_decoder"
2213 vp6f_decoder_select="vp6_decoder"
2214 vp7_decoder_select="h264pred videodsp"
2215 vp8_decoder_select="h264pred videodsp"
2216 vp9_decoder_select="videodsp vp9_parser"
2217 webp_decoder_select="vp8_decoder"
2218 wmalossless_decoder_select="llauddsp"
2219 wmapro_decoder_select="mdct sinewin wma_freqs"
2220 wmav1_decoder_select="mdct sinewin wma_freqs"
2221 wmav1_encoder_select="mdct sinewin wma_freqs"
2222 wmav2_decoder_select="mdct sinewin wma_freqs"
2223 wmav2_encoder_select="mdct sinewin wma_freqs"
2224 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2225 wmv1_decoder_select="h263_decoder"
2226 wmv1_encoder_select="h263_encoder"
2227 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2228 wmv2_encoder_select="h263_encoder"
2229 wmv3_decoder_select="vc1_decoder"
2230 wmv3image_decoder_select="wmv3_decoder"
2231 zerocodec_decoder_select="zlib"
2232 zlib_decoder_select="zlib"
2233 zlib_encoder_select="zlib"
2234 zmbv_decoder_select="zlib"
2235 zmbv_encoder_select="zlib"
2236
2237 # hardware accelerators
2238 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2239 dxva2_deps="dxva2api_h"
2240 vaapi_deps="va_va_h"
2241 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2242 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2243 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2244 xvmc_deps="X11_extensions_XvMClib_h"
2245
2246 h263_vaapi_hwaccel_deps="vaapi"
2247 h263_vaapi_hwaccel_select="h263_decoder"
2248 h263_vdpau_hwaccel_deps="vdpau"
2249 h263_vdpau_hwaccel_select="h263_decoder"
2250 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2251 h264_dxva2_hwaccel_deps="dxva2"
2252 h264_dxva2_hwaccel_select="h264_decoder"
2253 h264_vaapi_hwaccel_deps="vaapi"
2254 h264_vaapi_hwaccel_select="h264_decoder"
2255 h264_vda_decoder_deps="vda"
2256 h264_vda_decoder_select="h264_decoder"
2257 h264_vda_hwaccel_deps="vda"
2258 h264_vda_hwaccel_select="h264_decoder"
2259 h264_vda_old_hwaccel_deps="vda"
2260 h264_vda_old_hwaccel_select="h264_decoder"
2261 h264_vdpau_decoder_deps="vdpau"
2262 h264_vdpau_decoder_select="h264_decoder"
2263 h264_vdpau_hwaccel_deps="vdpau"
2264 h264_vdpau_hwaccel_select="h264_decoder"
2265 mpeg_vdpau_decoder_deps="vdpau"
2266 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2267 mpeg_xvmc_hwaccel_deps="xvmc"
2268 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2269 mpeg1_vdpau_decoder_deps="vdpau"
2270 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2271 mpeg1_vdpau_hwaccel_deps="vdpau"
2272 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2273 mpeg1_xvmc_hwaccel_deps="xvmc"
2274 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2275 mpeg2_crystalhd_decoder_select="crystalhd"
2276 mpeg2_dxva2_hwaccel_deps="dxva2"
2277 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2278 mpeg2_vaapi_hwaccel_deps="vaapi"
2279 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2280 mpeg2_vdpau_hwaccel_deps="vdpau"
2281 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2282 mpeg2_xvmc_hwaccel_deps="xvmc"
2283 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2284 mpeg4_crystalhd_decoder_select="crystalhd"
2285 mpeg4_vaapi_hwaccel_deps="vaapi"
2286 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2287 mpeg4_vdpau_decoder_deps="vdpau"
2288 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2289 mpeg4_vdpau_hwaccel_deps="vdpau"
2290 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2291 msmpeg4_crystalhd_decoder_select="crystalhd"
2292 vc1_crystalhd_decoder_select="crystalhd"
2293 vc1_dxva2_hwaccel_deps="dxva2"
2294 vc1_dxva2_hwaccel_select="vc1_decoder"
2295 vc1_vaapi_hwaccel_deps="vaapi"
2296 vc1_vaapi_hwaccel_select="vc1_decoder"
2297 vc1_vdpau_decoder_deps="vdpau"
2298 vc1_vdpau_decoder_select="vc1_decoder"
2299 vc1_vdpau_hwaccel_deps="vdpau"
2300 vc1_vdpau_hwaccel_select="vc1_decoder"
2301 wmv3_crystalhd_decoder_select="crystalhd"
2302 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2303 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2304 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2305 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2306
2307 # parsers
2308 h264_parser_select="h264_decoder"
2309 hevc_parser_select="hevc_decoder"
2310 mpegvideo_parser_select="mpegvideo"
2311 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2312 vc1_parser_select="mpegvideo startcode vc1_decoder"
2313
2314 # external libraries
2315 libaacplus_encoder_deps="libaacplus"
2316 libcelt_decoder_deps="libcelt"
2317 libfaac_encoder_deps="libfaac"
2318 libfaac_encoder_select="audio_frame_queue"
2319 libfdk_aac_decoder_deps="libfdk_aac"
2320 libfdk_aac_encoder_deps="libfdk_aac"
2321 libfdk_aac_encoder_select="audio_frame_queue"
2322 libgme_demuxer_deps="libgme"
2323 libgsm_decoder_deps="libgsm"
2324 libgsm_encoder_deps="libgsm"
2325 libgsm_ms_decoder_deps="libgsm"
2326 libgsm_ms_encoder_deps="libgsm"
2327 libilbc_decoder_deps="libilbc"
2328 libilbc_encoder_deps="libilbc"
2329 libmodplug_demuxer_deps="libmodplug"
2330 libmp3lame_encoder_deps="libmp3lame"
2331 libmp3lame_encoder_select="audio_frame_queue"
2332 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2333 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2334 libopencore_amrnb_encoder_select="audio_frame_queue"
2335 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2336 libopenjpeg_decoder_deps="libopenjpeg"
2337 libopenjpeg_encoder_deps="libopenjpeg"
2338 libopus_decoder_deps="libopus"
2339 libopus_encoder_deps="libopus"
2340 libopus_encoder_select="audio_frame_queue"
2341 libquvi_demuxer_deps="libquvi"
2342 libschroedinger_decoder_deps="libschroedinger"
2343 libschroedinger_encoder_deps="libschroedinger"
2344 libshine_encoder_deps="libshine"
2345 libshine_encoder_select="audio_frame_queue"
2346 libspeex_decoder_deps="libspeex"
2347 libspeex_encoder_deps="libspeex"
2348 libspeex_encoder_select="audio_frame_queue"
2349 libstagefright_h264_decoder_deps="libstagefright_h264"
2350 libtheora_encoder_deps="libtheora"
2351 libtwolame_encoder_deps="libtwolame"
2352 libvo_aacenc_encoder_deps="libvo_aacenc"
2353 libvo_aacenc_encoder_select="audio_frame_queue"
2354 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2355 libvorbis_decoder_deps="libvorbis"
2356 libvorbis_encoder_deps="libvorbis"
2357 libvorbis_encoder_select="audio_frame_queue"
2358 libvpx_vp8_decoder_deps="libvpx"
2359 libvpx_vp8_encoder_deps="libvpx"
2360 libvpx_vp9_decoder_deps="libvpx"
2361 libvpx_vp9_encoder_deps="libvpx"
2362 libwavpack_encoder_deps="libwavpack"
2363 libwebp_encoder_deps="libwebp"
2364 libx264_encoder_deps="libx264"
2365 libx264rgb_encoder_deps="libx264"
2366 libx265_encoder_deps="libx265"
2367 libxavs_encoder_deps="libxavs"
2368 libxvid_encoder_deps="libxvid"
2369 libutvideo_decoder_deps="libutvideo"
2370 libutvideo_encoder_deps="libutvideo"
2371 libzvbi_teletext_decoder_deps="libzvbi"
2372
2373 # demuxers / muxers
2374 ac3_demuxer_select="ac3_parser"
2375 asf_demuxer_select="riffdec"
2376 asf_muxer_select="riffenc"
2377 asf_stream_muxer_select="asf_muxer"
2378 avi_demuxer_select="riffdec exif"
2379 avi_muxer_select="riffenc"
2380 avisynth_demuxer_deps="avisynth"
2381 avisynth_demuxer_select="riffdec"
2382 caf_demuxer_select="riffdec"
2383 dirac_demuxer_select="dirac_parser"
2384 dts_demuxer_select="dca_parser"
2385 dtshd_demuxer_select="dca_parser"
2386 dv_demuxer_select="dvprofile"
2387 dv_muxer_select="dvprofile"
2388 dxa_demuxer_select="riffdec"
2389 eac3_demuxer_select="ac3_parser"
2390 f4v_muxer_select="mov_muxer"
2391 flac_demuxer_select="flac_parser"
2392 hds_muxer_select="flv_muxer"
2393 hls_muxer_select="mpegts_muxer"
2394 image2_alias_pix_demuxer_select="image2_demuxer"
2395 image2_brender_pix_demuxer_select="image2_demuxer"
2396 ipod_muxer_select="mov_muxer"
2397 ismv_muxer_select="mov_muxer"
2398 libnut_demuxer_deps="libnut"
2399 libnut_muxer_deps="libnut"
2400 matroska_audio_muxer_select="matroska_muxer"
2401 matroska_demuxer_select="riffdec"
2402 matroska_demuxer_suggest="bzlib lzo zlib"
2403 matroska_muxer_select="riffenc"
2404 mmf_muxer_select="riffenc"
2405 mov_demuxer_select="riffdec"
2406 mov_demuxer_suggest="zlib"
2407 mov_muxer_select="riffenc rtpenc_chain"
2408 mp3_demuxer_select="mpegaudio_parser"
2409 mp4_muxer_select="mov_muxer"
2410 mpegts_muxer_select="adts_muxer latm_muxer"
2411 mpegtsraw_demuxer_select="mpegts_demuxer"
2412 mxf_d10_muxer_select="mxf_muxer"
2413 nut_muxer_select="riffenc"
2414 nuv_demuxer_select="riffdec"
2415 oga_muxer_select="ogg_muxer"
2416 ogg_demuxer_select="golomb"
2417 opus_muxer_select="ogg_muxer"
2418 psp_muxer_select="mov_muxer"
2419 rtp_demuxer_select="sdp_demuxer"
2420 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2421 rtsp_demuxer_select="http_protocol rtpdec"
2422 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2423 sap_demuxer_select="sdp_demuxer"
2424 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2425 sdp_demuxer_select="rtpdec"
2426 smoothstreaming_muxer_select="ismv_muxer"
2427 spdif_muxer_select="aac_parser"
2428 spx_muxer_select="ogg_muxer"
2429 tak_demuxer_select="tak_parser"
2430 tg2_muxer_select="mov_muxer"
2431 tgp_muxer_select="mov_muxer"
2432 vobsub_demuxer_select="mpegps_demuxer"
2433 w64_demuxer_select="wav_demuxer"
2434 w64_muxer_select="wav_muxer"
2435 wav_demuxer_select="riffdec"
2436 wav_muxer_select="riffenc"
2437 webm_muxer_select="riffenc"
2438 wtv_demuxer_select="riffdec"
2439 wtv_muxer_select="riffenc"
2440 xmv_demuxer_select="riffdec"
2441 xwma_demuxer_select="riffdec"
2442
2443 # indevs / outdevs
2444 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2445 alsa_outdev_deps="alsa_asoundlib_h"
2446 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2447 avfoundation_indev_select="avfoundation"
2448 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2449 caca_outdev_deps="libcaca"
2450 decklink_outdev_deps="decklink pthreads"
2451 decklink_outdev_extralibs="-lstdc++"
2452 dshow_indev_deps="IBaseFilter"
2453 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2454 dv1394_indev_deps="dv1394"
2455 dv1394_indev_select="dv_demuxer"
2456 fbdev_indev_deps="linux_fb_h"
2457 fbdev_outdev_deps="linux_fb_h"
2458 gdigrab_indev_deps="CreateDIBSection"
2459 gdigrab_indev_extralibs="-lgdi32"
2460 gdigrab_indev_select="bmp_decoder"
2461 iec61883_indev_deps="libiec61883"
2462 jack_indev_deps="jack_jack_h sem_timedwait"
2463 lavfi_indev_deps="avfilter"
2464 libcdio_indev_deps="libcdio"
2465 libdc1394_indev_deps="libdc1394"
2466 libv4l2_indev_deps="libv4l2"
2467 openal_indev_deps="openal"
2468 opengl_outdev_deps="opengl"
2469 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2470 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2471 pulse_indev_deps="libpulse"
2472 pulse_outdev_deps="libpulse"
2473 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2474 qtkit_indev_select="qtkit"
2475 sdl_outdev_deps="sdl"
2476 sndio_indev_deps="sndio_h"
2477 sndio_outdev_deps="sndio_h"
2478 v4l_indev_deps="linux_videodev_h"
2479 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2480 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2481 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2482 vfwcap_indev_extralibs="-lavicap32"
2483 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2484 xv_outdev_extralibs="-lXv -lX11 -lXext"
2485 x11grab_indev_deps="x11grab"
2486
2487 # protocols
2488 bluray_protocol_deps="libbluray"
2489 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2490 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2491 ffrtmpcrypt_protocol_select="tcp_protocol"
2492 ffrtmphttp_protocol_deps="!librtmp_protocol"
2493 ffrtmphttp_protocol_select="http_protocol"
2494 ftp_protocol_select="tcp_protocol"
2495 gopher_protocol_select="network"
2496 http_protocol_select="tcp_protocol"
2497 httpproxy_protocol_select="tcp_protocol"
2498 https_protocol_select="tls_protocol"
2499 icecast_protocol_select="http_protocol"
2500 librtmp_protocol_deps="librtmp"
2501 librtmpe_protocol_deps="librtmp"
2502 librtmps_protocol_deps="librtmp"
2503 librtmpt_protocol_deps="librtmp"
2504 librtmpte_protocol_deps="librtmp"
2505 libsmbclient_protocol_deps="libsmbclient gplv3"
2506 libssh_protocol_deps="libssh"
2507 mmsh_protocol_select="http_protocol"
2508 mmst_protocol_select="network"
2509 rtmp_protocol_deps="!librtmp_protocol"
2510 rtmp_protocol_select="tcp_protocol"
2511 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2512 rtmps_protocol_deps="!librtmp_protocol"
2513 rtmps_protocol_select="tls_protocol"
2514 rtmpt_protocol_select="ffrtmphttp_protocol"
2515 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2516 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2517 rtp_protocol_select="udp_protocol"
2518 sctp_protocol_deps="struct_sctp_event_subscribe"
2519 sctp_protocol_select="network"
2520 srtp_protocol_select="rtp_protocol"
2521 tcp_protocol_select="network"
2522 tls_protocol_deps_any="openssl gnutls"
2523 tls_protocol_select="tcp_protocol"
2524 udp_protocol_select="network"
2525 unix_protocol_deps="sys_un_h"
2526 unix_protocol_select="network"
2527
2528 # filters
2529 aconvert_filter_deps="swresample"
2530 amovie_filter_deps="avcodec avformat"
2531 aresample_filter_deps="swresample"
2532 ass_filter_deps="libass"
2533 asyncts_filter_deps="avresample"
2534 atempo_filter_deps="avcodec"
2535 atempo_filter_select="rdft"
2536 azmq_filter_deps="libzmq"
2537 blackframe_filter_deps="gpl"
2538 boxblur_filter_deps="gpl"
2539 bs2b_filter_deps="libbs2b"
2540 colormatrix_filter_deps="gpl"
2541 cropdetect_filter_deps="gpl"
2542 delogo_filter_deps="gpl"
2543 deshake_filter_select="pixelutils"
2544 drawtext_filter_deps="libfreetype"
2545 ebur128_filter_deps="gpl"
2546 flite_filter_deps="libflite"
2547 frei0r_filter_deps="frei0r dlopen"
2548 frei0r_filter_extralibs='$ldl'
2549 frei0r_src_filter_deps="frei0r dlopen"
2550 frei0r_src_filter_extralibs='$ldl'
2551 geq_filter_deps="gpl"
2552 histeq_filter_deps="gpl"
2553 hqdn3d_filter_deps="gpl"
2554 interlace_filter_deps="gpl"
2555 kerndeint_filter_deps="gpl"
2556 ladspa_filter_deps="ladspa dlopen"
2557 ladspa_filter_extralibs='$ldl'
2558 mcdeint_filter_deps="avcodec gpl"
2559 movie_filter_deps="avcodec avformat"
2560 mp_filter_deps="gpl avcodec swscale inline_asm"
2561 mpdecimate_filter_deps="gpl"
2562 mpdecimate_filter_select="pixelutils"
2563 mptestsrc_filter_deps="gpl"
2564 negate_filter_deps="lut_filter"
2565 perspective_filter_deps="gpl"
2566 ocv_filter_deps="libopencv"
2567 owdenoise_filter_deps="gpl"
2568 pan_filter_deps="swresample"
2569 phase_filter_deps="gpl"
2570 pp_filter_deps="gpl postproc"
2571 pullup_filter_deps="gpl"
2572 removelogo_filter_deps="avcodec avformat swscale"
2573 resample_filter_deps="avresample"
2574 sab_filter_deps="gpl swscale"
2575 scale_filter_deps="swscale"
2576 select_filter_select="pixelutils"
2577 smartblur_filter_deps="gpl swscale"
2578 showspectrum_filter_deps="avcodec"
2579 showspectrum_filter_select="rdft"
2580 spp_filter_deps="gpl avcodec"
2581 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2582 stereo3d_filter_deps="gpl"
2583 subtitles_filter_deps="avformat avcodec libass"
2584 super2xsai_filter_deps="gpl"
2585 tinterlace_filter_deps="gpl"
2586 vidstabdetect_filter_deps="libvidstab"
2587 vidstabtransform_filter_deps="libvidstab"
2588 pixfmts_super2xsai_test_deps="super2xsai_filter"
2589 tinterlace_merge_test_deps="tinterlace_filter"
2590 tinterlace_pad_test_deps="tinterlace_filter"
2591 zmq_filter_deps="libzmq"
2592 zoompan_filter_deps="swscale"
2593
2594 # examples
2595 avio_reading="avformat avcodec avutil"
2596 avcodec_example_deps="avcodec avutil"
2597 decoding_encoding_example_deps="avcodec avformat avutil"
2598 demuxing_decoding_example_deps="avcodec avformat avutil"
2599 extract_mvs_example_deps="avcodec avformat avutil"
2600 filter_audio_example_deps="avfilter avutil"
2601 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2602 filtering_video_example_deps="avfilter avcodec avformat avutil"
2603 metadata_example_deps="avformat avutil"
2604 muxing_example_deps="avcodec avformat avutil swscale"
2605 remuxing_example_deps="avcodec avformat avutil"
2606 resampling_audio_example_deps="avutil swresample"
2607 scaling_video_example_deps="avutil swscale"
2608 transcode_aac_example_deps="avcodec avformat swresample"
2609 transcoding_example_deps="avfilter avcodec avformat avutil"
2610
2611 # libraries, in linking order
2612 avcodec_deps="avutil"
2613 avdevice_deps="avformat avcodec avutil"
2614 avfilter_deps="avutil"
2615 avformat_deps="avcodec avutil"
2616 avresample_deps="avutil"
2617 postproc_deps="avutil gpl"
2618 swresample_deps="avutil"
2619 swscale_deps="avutil"
2620
2621 # programs
2622 ffmpeg_deps="avcodec avfilter avformat swresample"
2623 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2624                null_filter
2625                setpts_filter trim_filter"
2626 ffplay_deps="avcodec avformat swscale swresample sdl"
2627 ffplay_libs='$sdl_libs'
2628 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2629 ffprobe_deps="avcodec avformat"
2630 ffserver_deps="avformat fork sarestart"
2631 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2632
2633 # documentation
2634 podpages_deps="perl"
2635 manpages_deps="perl pod2man"
2636 htmlpages_deps="perl"
2637 htmlpages_deps_any="makeinfo_html texi2html"
2638 txtpages_deps="perl makeinfo"
2639 doc_deps_any="manpages htmlpages podpages txtpages"
2640
2641 # default parameters
2642
2643 logfile="config.log"
2644
2645 # installation paths
2646 prefix_default="/usr/local"
2647 bindir_default='${prefix}/bin'
2648 datadir_default='${prefix}/share/ffmpeg'
2649 docdir_default='${prefix}/share/doc/ffmpeg'
2650 incdir_default='${prefix}/include'
2651 libdir_default='${prefix}/lib'
2652 mandir_default='${prefix}/share/man'
2653 shlibdir_default="$libdir_default"
2654
2655 # toolchain
2656 ar_default="ar"
2657 cc_default="gcc"
2658 cxx_default="g++"
2659 host_cc_default="gcc"
2660 cp_f="cp -f"
2661 doxygen_default="doxygen"
2662 install="install"
2663 ln_s="ln -s -f"
2664 nm_default="nm -g"
2665 objformat="elf"
2666 pkg_config_default=pkg-config
2667 ranlib_default="ranlib"
2668 strip_default="strip"
2669 yasmexe_default="yasm"
2670 windres_default="windres"
2671
2672 # OS
2673 target_os_default=$(tolower $(uname -s))
2674 host_os=$target_os_default
2675
2676 # machine
2677 if test "$target_os_default" = aix; then
2678     arch_default=$(uname -p)
2679     strip_default="strip -X32_64"
2680 else
2681     arch_default=$(uname -m)
2682 fi
2683 cpu="generic"
2684 intrinsics="none"
2685
2686 # configurable options
2687 enable $PROGRAM_LIST
2688 enable $DOCUMENT_LIST
2689 enable $EXAMPLE_LIST
2690 enable $(filter_out avresample $LIBRARY_LIST)
2691 enable stripping
2692
2693 enable asm
2694 enable debug
2695 enable doc
2696 enable optimizations
2697 enable runtime_cpudetect
2698 enable safe_bitstream_reader
2699 enable static
2700 enable swscale_alpha
2701
2702 sws_max_filter_size_default=256
2703 set_default sws_max_filter_size
2704
2705 # Enable hwaccels by default.
2706 enable dxva2 vaapi vda vdpau xvmc
2707 enable xlib
2708
2709 # build settings
2710 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2711 LIBPREF="lib"
2712 LIBSUF=".a"
2713 FULLNAME='$(NAME)$(BUILDSUF)'
2714 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2715 SLIBPREF="lib"
2716 SLIBSUF=".so"
2717 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2718 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2719 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2720 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2721 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2722 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2723
2724 asflags_filter=echo
2725 cflags_filter=echo
2726 ldflags_filter=echo
2727
2728 AS_C='-c'
2729 AS_O='-o $@'
2730 CC_C='-c'
2731 CC_E='-E -o $@'
2732 CC_O='-o $@'
2733 CXX_C='-c'
2734 CXX_O='-o $@'
2735 LD_O='-o $@'
2736 LD_LIB='-l%'
2737 LD_PATH='-L'
2738 HOSTCC_C='-c'
2739 HOSTCC_E='-E -o $@'
2740 HOSTCC_O='-o $@'
2741 HOSTLD_O='-o $@'
2742
2743 host_libs='-lm'
2744 host_cflags_filter=echo
2745 host_ldflags_filter=echo
2746
2747 target_path='$(CURDIR)'
2748
2749 # since the object filename is not given with the -MM flag, the compiler
2750 # is only able to print the basename, and we must add the path ourselves
2751 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2752 DEPFLAGS='-MM'
2753
2754 # find source path
2755 if test -f configure; then
2756     source_path=.
2757 else
2758     source_path=$(cd $(dirname "$0"); pwd)
2759     echo "$source_path" | grep -q '[[:blank:]]' &&
2760         die "Out of tree builds are impossible with whitespace in source path."
2761     test -e "$source_path/config.h" &&
2762         die "Out of tree builds are impossible with config.h in source dir."
2763 fi
2764
2765 for v in "$@"; do
2766     r=${v#*=}
2767     l=${v%"$r"}
2768     r=$(sh_quote "$r")
2769     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2770 done
2771
2772 find_things(){
2773     thing=$1
2774     pattern=$2
2775     file=$source_path/$3
2776     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2777 }
2778
2779 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2780 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2781 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2782 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2783 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2784 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2785 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2786 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2787 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2788 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2789 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2790
2791 ALL_COMPONENTS="
2792     $BSF_LIST
2793     $DECODER_LIST
2794     $DEMUXER_LIST
2795     $ENCODER_LIST
2796     $FILTER_LIST
2797     $HWACCEL_LIST
2798     $INDEV_LIST
2799     $MUXER_LIST
2800     $OUTDEV_LIST
2801     $PARSER_LIST
2802     $PROTOCOL_LIST
2803 "
2804
2805 for n in $COMPONENT_LIST; do
2806     v=$(toupper ${n%s})_LIST
2807     eval enable \$$v
2808     eval ${n}_if_any="\$$v"
2809 done
2810
2811 enable $ARCH_EXT_LIST
2812
2813 die_unknown(){
2814     echo "Unknown option \"$1\"."
2815     echo "See $0 --help for available options."
2816     exit 1
2817 }
2818
2819 print_3_columns() {
2820     cat | tr ' ' '\n' | sort | pr -r -3 -t
2821 }
2822
2823 show_list() {
2824     suffix=_$1
2825     shift
2826     echo $* | sed s/$suffix//g | print_3_columns
2827     exit 0
2828 }
2829
2830 rand_list(){
2831     IFS=', '
2832     set -- $*
2833     unset IFS
2834     for thing; do
2835         comp=${thing%:*}
2836         prob=${thing#$comp}
2837         prob=${prob#:}
2838         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2839         echo "prob ${prob:-0.5}"
2840         printf '%s\n' $comp
2841     done
2842 }
2843
2844 do_random(){
2845     action=$1
2846     shift
2847     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2848     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2849 }
2850
2851 for opt do
2852     optval="${opt#*=}"
2853     case "$opt" in
2854         --extra-ldflags=*)
2855             add_ldflags $optval
2856         ;;
2857         --extra-ldexeflags=*)
2858             add_ldexeflags $optval
2859         ;;
2860         --extra-libs=*)
2861             add_extralibs $optval
2862         ;;
2863         --disable-devices)
2864             disable $INDEV_LIST $OUTDEV_LIST
2865         ;;
2866         --enable-debug=*)
2867             debuglevel="$optval"
2868         ;;
2869         --disable-programs)
2870             disable $PROGRAM_LIST
2871         ;;
2872         --disable-everything)
2873             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2874         ;;
2875         --disable-all)
2876             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2877             disable $LIBRARY_LIST $PROGRAM_LIST doc
2878         ;;
2879         --enable-random|--disable-random)
2880             action=${opt%%-random}
2881             do_random ${action#--} $COMPONENT_LIST
2882         ;;
2883         --enable-random=*|--disable-random=*)
2884             action=${opt%%-random=*}
2885             do_random ${action#--} $optval
2886         ;;
2887         --enable-*=*|--disable-*=*)
2888             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2889             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2890             eval list=\$$(toupper $thing)_LIST
2891             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2892             list=$(filter "$name" $list)
2893             [ "$list" = "" ] && warn "Option $opt did not match anything"
2894             $action $list
2895         ;;
2896         --enable-?*|--disable-?*)
2897             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2898             if is_in $option $COMPONENT_LIST; then
2899                 test $action = disable && action=unset
2900                 eval $action \$$(toupper ${option%s})_LIST
2901             elif is_in $option $CMDLINE_SELECT; then
2902                 $action $option
2903             else
2904                 die_unknown $opt
2905             fi
2906         ;;
2907         --list-*)
2908             NAME="${opt#--list-}"
2909             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2910             NAME=${NAME%s}
2911             eval show_list $NAME \$$(toupper $NAME)_LIST
2912         ;;
2913         --help|-h) show_help
2914         ;;
2915         --fatal-warnings) enable fatal_warnings
2916         ;;
2917         *)
2918             optname="${opt%%=*}"
2919             optname="${optname#--}"
2920             optname=$(echo "$optname" | sed 's/-/_/g')
2921             if is_in $optname $CMDLINE_SET; then
2922                 eval $optname='$optval'
2923             elif is_in $optname $CMDLINE_APPEND; then
2924                 append $optname "$optval"
2925             else
2926                 die_unknown $opt
2927             fi
2928         ;;
2929     esac
2930 done
2931
2932 disabled logging && logfile=/dev/null
2933
2934 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2935 set >> $logfile
2936
2937 test -n "$cross_prefix" && enable cross_compile
2938
2939 if enabled cross_compile; then
2940     test -n "$arch" && test -n "$target_os" ||
2941         die "Must specify target arch and OS when cross-compiling"
2942 fi
2943
2944 ar_default="${cross_prefix}${ar_default}"
2945 cc_default="${cross_prefix}${cc_default}"
2946 cxx_default="${cross_prefix}${cxx_default}"
2947 nm_default="${cross_prefix}${nm_default}"
2948 pkg_config_default="${cross_prefix}${pkg_config_default}"
2949 ranlib_default="${cross_prefix}${ranlib_default}"
2950 strip_default="${cross_prefix}${strip_default}"
2951 windres_default="${cross_prefix}${windres_default}"
2952
2953 sysinclude_default="${sysroot}/usr/include"
2954
2955 test -n "$valgrind" && toolchain="valgrind-memcheck"
2956
2957 case "$toolchain" in
2958     clang-asan)
2959         cc_default="clang"
2960         add_cflags  -fsanitize=address
2961         add_ldflags -fsanitize=address
2962     ;;
2963     clang-tsan)
2964         cc_default="clang"
2965         add_cflags  -fsanitize=thread -pie
2966         add_ldflags -fsanitize=thread -pie
2967     ;;
2968     clang-usan)
2969         cc_default="clang"
2970         add_cflags  -fsanitize=undefined
2971         add_ldflags -fsanitize=undefined
2972     ;;
2973     gcc-asan)
2974         cc_default="gcc"
2975         add_cflags  -fsanitize=address
2976         add_ldflags -fsanitize=address
2977     ;;
2978     gcc-tsan)
2979         cc_default="gcc"
2980         add_cflags  -fsanitize=thread -pie -fPIC
2981         add_ldflags -fsanitize=thread -pie -fPIC
2982     ;;
2983     gcc-usan)
2984         cc_default="gcc"
2985         add_cflags  -fsanitize=undefined
2986         add_ldflags -fsanitize=undefined
2987     ;;
2988     valgrind-massif)
2989         target_exec_default=${valgrind:-"valgrind"}
2990         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"
2991     ;;
2992     valgrind-memcheck)
2993         target_exec_default=${valgrind:-"valgrind"}
2994         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2995     ;;
2996     msvc)
2997         # Check whether the current MSVC version needs the C99 converter.
2998         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2999         # support enough of C99 to build ffmpeg. Default to the new
3000         # behaviour if the regexp was unable to match anything, since this
3001         # successfully parses the version number of existing supported
3002         # versions that require the converter (MSVC 2010 and 2012).
3003         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3004         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3005             cc_default="cl"
3006         else
3007             cc_default="c99wrap cl"
3008         fi
3009         ld_default="link"
3010         nm_default="dumpbin -symbols"
3011         ar_default="lib"
3012         target_os_default="win32"
3013         # Use a relative path for TMPDIR. This makes sure all the
3014         # ffconf temp files are written with a relative path, avoiding
3015         # issues with msys/win32 path conversion for MSVC parameters
3016         # such as -Fo<file> or -out:<file>.
3017         TMPDIR=.
3018     ;;
3019     icl)
3020         cc_default="icl"
3021         ld_default="xilink"
3022         nm_default="dumpbin -symbols"
3023         ar_default="xilib"
3024         target_os_default="win32"
3025         TMPDIR=.
3026     ;;
3027     gcov)
3028         add_cflags  -fprofile-arcs -ftest-coverage
3029         add_ldflags -fprofile-arcs -ftest-coverage
3030     ;;
3031     hardened)
3032         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
3033         add_ldflags -Wl,-z,relro -Wl,-z,now
3034     ;;
3035     ?*)
3036         die "Unknown toolchain $toolchain"
3037     ;;
3038 esac
3039
3040 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3041     target_exec target_os yasmexe
3042 enabled cross_compile || host_cc_default=$cc
3043 set_default host_cc
3044
3045 if ! $pkg_config --version >/dev/null 2>&1; then
3046     warn "$pkg_config not found, library detection may fail."
3047     pkg_config=false
3048 fi
3049
3050 if test $doxygen != $doxygen_default && \
3051   ! $doxygen --version >/dev/null 2>&1; then
3052     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3053 fi
3054
3055 exesuf() {
3056     case $1 in
3057         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3058     esac
3059 }
3060
3061 EXESUF=$(exesuf $target_os)
3062 HOSTEXESUF=$(exesuf $host_os)
3063
3064 # set temporary file name
3065 : ${TMPDIR:=$TEMPDIR}
3066 : ${TMPDIR:=$TMP}
3067 : ${TMPDIR:=/tmp}
3068
3069 if [ -n "$tempprefix" ] ; then
3070     mktemp(){
3071         echo $tempprefix.${HOSTNAME}.${UID}
3072     }
3073 elif ! check_cmd mktemp -u XXXXXX; then
3074     # simple replacement for missing mktemp
3075     # NOT SAFE FOR GENERAL USE
3076     mktemp(){
3077         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3078     }
3079 fi
3080
3081 tmpfile(){
3082     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3083         (set -C; exec > $tmp) 2>/dev/null ||
3084         die "Unable to create temporary file in $TMPDIR."
3085     append TMPFILES $tmp
3086     eval $1=$tmp
3087 }
3088
3089 trap 'rm -f -- $TMPFILES' EXIT
3090
3091 tmpfile TMPASM .asm
3092 tmpfile TMPC   .c
3093 tmpfile TMPCPP .cpp
3094 tmpfile TMPE   $EXESUF
3095 tmpfile TMPH   .h
3096 tmpfile TMPM   .m
3097 tmpfile TMPO   .o
3098 tmpfile TMPS   .S
3099 tmpfile TMPSH  .sh
3100 tmpfile TMPV   .ver
3101
3102 unset -f mktemp
3103
3104 chmod +x $TMPE
3105
3106 # make sure we can execute files in $TMPDIR
3107 cat > $TMPSH 2>> $logfile <<EOF
3108 #! /bin/sh
3109 EOF
3110 chmod +x $TMPSH >> $logfile 2>&1
3111 if ! $TMPSH >> $logfile 2>&1; then
3112     cat <<EOF
3113 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3114 variable to another directory and make sure that it is not mounted noexec.
3115 EOF
3116     die "Sanity test failed."
3117 fi
3118
3119 armasm_flags(){
3120     for flag; do
3121         case $flag in
3122             # Filter out MSVC cl.exe options from cflags that shouldn't
3123             # be passed to gas-preprocessor
3124             -M[TD]*)                                            ;;
3125             *)                  echo $flag                      ;;
3126         esac
3127    done
3128 }
3129
3130 ccc_flags(){
3131     for flag; do
3132         case $flag in
3133             -std=c99)           echo -c99                       ;;
3134             -mcpu=*)            echo -arch ${flag#*=}           ;;
3135             -mieee)             echo -ieee                      ;;
3136             -O*|-fast)          echo $flag                      ;;
3137             -fno-math-errno)    echo -assume nomath_errno       ;;
3138             -g)                 echo -g3                        ;;
3139             -Wall)              echo -msg_enable level2         ;;
3140             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3141             -Wl,*)              echo $flag                      ;;
3142             -f*|-W*)                                            ;;
3143             *)                  echo $flag                      ;;
3144         esac
3145    done
3146 }
3147
3148 cparser_flags(){
3149     for flag; do
3150         case $flag in
3151             -Wno-switch)             echo -Wno-switch-enum ;;
3152             -Wno-format-zero-length) ;;
3153             -Wdisabled-optimization) ;;
3154             -Wno-pointer-sign)       echo -Wno-other ;;
3155             *)                       echo $flag ;;
3156         esac
3157     done
3158 }
3159
3160 msvc_common_flags(){
3161     for flag; do
3162         case $flag in
3163             # In addition to specifying certain flags under the compiler
3164             # specific filters, they must be specified here as well or else the
3165             # generic catch all at the bottom will print the original flag.
3166             -Wall)                ;;
3167             -std=c99)             ;;
3168             # Common flags
3169             -fomit-frame-pointer) ;;
3170             -g)                   echo -Z7 ;;
3171             -fno-math-errno)      ;;
3172             -fno-common)          ;;
3173             -fno-signed-zeros)    ;;
3174             -fPIC)                ;;
3175             -mthumb)              ;;
3176             -march=*)             ;;
3177             -lz)                  echo zlib.lib ;;
3178             -lavifil32)           echo vfw32.lib ;;
3179             -lavicap32)           echo vfw32.lib user32.lib ;;
3180             -l*)                  echo ${flag#-l}.lib ;;
3181             *)                    echo $flag ;;
3182         esac
3183     done
3184 }
3185
3186 msvc_flags(){
3187     msvc_common_flags "$@"
3188     for flag; do
3189         case $flag in
3190             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3191                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3192                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3193                                        -wd4554 \
3194                                        -wd4273 -wd4701 ;;
3195         esac
3196     done
3197 }
3198
3199 icl_flags(){
3200     msvc_common_flags "$@"
3201     for flag; do
3202         case $flag in
3203             # Despite what Intel's documentation says -Wall, which is supported
3204             # on Windows, does enable remarks so disable them here.
3205             -Wall)                echo $flag -Qdiag-disable:remark ;;
3206             -std=c99)             echo -Qstd=c99 ;;
3207             -flto)                echo -ipo ;;
3208         esac
3209     done
3210 }
3211
3212 icc_flags(){
3213     for flag; do
3214         case $flag in
3215             -flto)                echo -ipo ;;
3216             *)                    echo $flag ;;
3217         esac
3218     done
3219 }
3220
3221 pgi_flags(){
3222     for flag; do
3223         case $flag in
3224             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3225             -fomit-frame-pointer) echo -Mnoframe ;;
3226             -g)                   echo -gopt ;;
3227             *)                    echo $flag ;;
3228         esac
3229     done
3230 }
3231
3232 suncc_flags(){
3233     for flag; do
3234         case $flag in
3235             -march=*|-mcpu=*)
3236                 case "${flag#*=}" in
3237                     native)                   echo -xtarget=native       ;;
3238                     v9|niagara)               echo -xarch=sparc          ;;
3239                     ultrasparc)               echo -xarch=sparcvis       ;;
3240                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3241                     i586|pentium)             echo -xchip=pentium        ;;
3242                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3243                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3244                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3245                     pentium4*)          echo -xtarget=pentium4           ;;
3246                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3247                     *-sse3)             echo -xarch=sse3                 ;;
3248                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3249                     bonnell)                   echo -xarch=ssse3         ;;
3250                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3251                     westmere)                  echo -xtarget=westmere    ;;
3252                     silvermont)                echo -xarch=sse4_2        ;;
3253                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3254                     core-avx*|ivybridge|haswell|broadwell)
3255                                                echo -xarch=avx           ;;
3256                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3257                     btver1)                    echo -xarch=amdsse4a      ;;
3258                     btver2|bdver*)             echo -xarch=avx           ;;
3259                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3260                     k8|opteron|athlon64|athlon-fx)
3261                                                echo -xarch=sse2a         ;;
3262                     athlon*)                   echo -xarch=pentium_proa  ;;
3263                 esac
3264                 ;;
3265             -std=c99)             echo -xc99              ;;
3266             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3267             -fPIC)                echo -KPIC -xcode=pic32 ;;
3268             -W*,*)                echo $flag              ;;
3269             -f*-*|-W*|-mimpure-text)                      ;;
3270             -shared)              echo -G                 ;;
3271             *)                    echo $flag              ;;
3272         esac
3273     done
3274 }
3275
3276 tms470_flags(){
3277     for flag; do
3278         case $flag in
3279             -march=*|-mcpu=*)
3280                 case "${flag#*=}" in
3281                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3282                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3283                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3284                     armv6*|arm11*)          echo -mv=6   ;;
3285                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3286                                             echo -mv=5e  ;;
3287                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3288                 esac
3289                 ;;
3290             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3291             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3292             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3293             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3294             -msoft-float)   echo --float_support=vfplib       ;;
3295             -O[0-3]|-mf=*)  echo $flag                        ;;
3296             -g)             echo -g -mn                       ;;
3297             -pds=*)         echo $flag                        ;;
3298             -D*|-I*)        echo $flag                        ;;
3299             --gcc|--abi=*)  echo $flag                        ;;
3300             -me)            echo $flag                        ;;
3301         esac
3302     done
3303 }
3304
3305 probe_cc(){
3306     pfx=$1
3307     _cc=$2
3308
3309     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3310     unset _ld_o _ldflags _ld_lib _ld_path
3311     unset _depflags _DEPCMD _DEPFLAGS
3312     _flags_filter=echo
3313
3314     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3315         true # no-op to avoid reading stdin in following checks
3316     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3317         _type=llvm_gcc
3318         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3319         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3320         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3321         _cflags_speed='-O3'
3322         _cflags_size='-Os'
3323     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3324         _type=gcc
3325         gcc_version=$($_cc --version | head -n1)
3326         gcc_basever=$($_cc -dumpversion)
3327         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3328         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3329         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3330         if ! $_cc -dumpversion | grep -q '^2\.'; then
3331             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3332         fi
3333         _cflags_speed='-O3'
3334         _cflags_size='-Os'
3335     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3336         _type=icc
3337         _ident=$($_cc --version | head -n1)
3338         _depflags='-MMD'
3339         _cflags_speed='-O3'
3340         _cflags_size='-Os'
3341         _cflags_noopt='-O1'
3342         _flags_filter=icc_flags
3343     elif $_cc -v 2>&1 | grep -q xlc; then
3344         _type=xlc
3345         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3346         _cflags_speed='-O5'
3347         _cflags_size='-O5 -qcompact'
3348     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3349         _type=ccc
3350         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3351         _DEPFLAGS='-M'
3352         _cflags_speed='-fast'
3353         _cflags_size='-O1'
3354         _flags_filter=ccc_flags
3355     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3356         test -d "$sysroot" || die "No valid sysroot specified."
3357         _type=armcc
3358         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3359         armcc_conf="$PWD/armcc.conf"
3360         $_cc --arm_linux_configure                 \
3361              --arm_linux_config_file="$armcc_conf" \
3362              --configure_sysroot="$sysroot"        \
3363              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3364              die "Error creating armcc configuration file."
3365         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3366         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3367         as_default="${cross_prefix}gcc"
3368         _depflags='-MMD'
3369         _cflags_speed='-O3'
3370         _cflags_size='-Os'
3371     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3372         _type=tms470
3373         _ident=$($_cc -version | head -n1 | tr -s ' ')
3374         _flags='--gcc --abi=eabi -me'
3375         _cc_e='-ppl -fe=$@'
3376         _cc_o='-fe=$@'
3377         _depflags='-ppa -ppd=$(@:.o=.d)'
3378         _cflags_speed='-O3 -mf=5'
3379         _cflags_size='-O3 -mf=2'
3380         _flags_filter=tms470_flags
3381     elif $_cc -v 2>&1 | grep -q clang; then
3382         _type=clang
3383         _ident=$($_cc --version | head -n1)
3384         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3385         _cflags_speed='-O3'
3386         _cflags_size='-Os'
3387     elif $_cc -V 2>&1 | grep -q Sun; then
3388         _type=suncc
3389         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3390         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3391         _DEPFLAGS='-xM1 -xc99'
3392         _ldflags='-std=c99'
3393         _cflags_speed='-O5'
3394         _cflags_size='-O5 -xspace'
3395         _flags_filter=suncc_flags
3396     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3397         _type=pathscale
3398         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3399         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3400         _cflags_speed='-O2'
3401         _cflags_size='-Os'
3402         _flags_filter='filter_out -Wdisabled-optimization'
3403     elif $_cc -v 2>&1 | grep -q Open64; then
3404         _type=open64
3405         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3406         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3407         _cflags_speed='-O2'
3408         _cflags_size='-Os'
3409         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3410     elif $_cc -V 2>&1 | grep -q Portland; then
3411         _type=pgi
3412         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3413         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3414         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3415         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3416         _cflags_noopt="-O"
3417         _flags_filter=pgi_flags
3418     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3419         _type=armasm
3420         _ident=$($_cc | head -n1)
3421         # 4509: "This form of conditional instruction is deprecated"
3422         _flags="-nologo -ignore 4509"
3423         _flags_filter=armasm_flags
3424     elif $_cc 2>&1 | grep -q Microsoft; then
3425         _type=msvc
3426         _ident=$($cc 2>&1 | head -n1)
3427         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3428         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3429         _cflags_speed="-O2"
3430         _cflags_size="-O1"
3431         if $_cc 2>&1 | grep -q Linker; then
3432             _ld_o='-out:$@'
3433         else
3434             _ld_o='-Fe$@'
3435         fi
3436         _cc_o='-Fo$@'
3437         _cc_e='-P -Fi$@'
3438         _flags_filter=msvc_flags
3439         _ld_lib='lib%.a'
3440         _ld_path='-libpath:'
3441         _flags='-nologo'
3442         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3443         if [ $pfx = hostcc ]; then
3444             append _cflags -Dsnprintf=_snprintf
3445         fi
3446         disable stripping
3447     elif $_cc 2>&1 | grep -q Intel; then
3448         _type=icl
3449         _ident=$($cc 2>&1 | head -n1)
3450         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3451         # Not only is O3 broken on 13.x+ but it is slower on all previous
3452         # versions (tested) as well.
3453         _cflags_speed="-O2"
3454         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3455         if $_cc 2>&1 | grep -q Linker; then
3456             _ld_o='-out:$@'
3457         else
3458             _ld_o='-Fe$@'
3459         fi
3460         _cc_o='-Fo$@'
3461         _cc_e='-P'
3462         _flags_filter=icl_flags
3463         _ld_lib='lib%.a'
3464         _ld_path='-libpath:'
3465         # -Qdiag-error to make icl error when seeing certain unknown arguments
3466         _flags='-nologo -Qdiag-error:4044,10157'
3467         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3468         # with MSVC which enables it by default.
3469         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3470         if [ $pfx = hostcc ]; then
3471             append _cflags -Dsnprintf=_snprintf
3472         fi
3473     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3474         _type=cparser
3475         _ident=$($_cc --version | head -n1)
3476         _depflags='-MMD'
3477         _cflags_speed='-O4'
3478         _cflags_size='-O2'
3479         _flags_filter=cparser_flags
3480     fi
3481
3482     eval ${pfx}_type=\$_type
3483     eval ${pfx}_ident=\$_ident
3484 }
3485
3486 set_ccvars(){
3487     eval ${1}_C=\${_cc_c-\${${1}_C}}
3488     eval ${1}_E=\${_cc_e-\${${1}_E}}
3489     eval ${1}_O=\${_cc_o-\${${1}_O}}
3490
3491     if [ -n "$_depflags" ]; then
3492         eval ${1}_DEPFLAGS=\$_depflags
3493     else
3494         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3495         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3496         eval DEP${1}FLAGS=\$_flags
3497     fi
3498 }
3499
3500 probe_cc cc "$cc"
3501 cflags_filter=$_flags_filter
3502 cflags_speed=$_cflags_speed
3503 cflags_size=$_cflags_size
3504 cflags_noopt=$_cflags_noopt
3505 add_cflags $_flags $_cflags
3506 cc_ldflags=$_ldflags
3507 set_ccvars CC
3508
3509 probe_cc hostcc "$host_cc"
3510 host_cflags_filter=$_flags_filter
3511 add_host_cflags  $_flags $_cflags
3512 set_ccvars HOSTCC
3513
3514 test -n "$cc_type" && enable $cc_type ||
3515     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3516
3517 : ${as_default:=$cc}
3518 : ${dep_cc_default:=$cc}
3519 : ${ld_default:=$cc}
3520 : ${host_ld_default:=$host_cc}
3521 set_default ar as dep_cc ld host_ld windres
3522
3523 probe_cc as "$as"
3524 asflags_filter=$_flags_filter
3525 add_asflags $_flags $_cflags
3526 set_ccvars AS
3527
3528 probe_cc ld "$ld"
3529 ldflags_filter=$_flags_filter
3530 add_ldflags $_flags $_ldflags
3531 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3532 LD_O=${_ld_o-$LD_O}
3533 LD_LIB=${_ld_lib-$LD_LIB}
3534 LD_PATH=${_ld_path-$LD_PATH}
3535
3536 probe_cc hostld "$host_ld"
3537 host_ldflags_filter=$_flags_filter
3538 add_host_ldflags $_flags $_ldflags
3539 HOSTLD_O=${_ld_o-$HOSTLD_O}
3540
3541 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3542     probe_cc depcc "$dep_cc"
3543     CCDEP=${_DEPCMD:-$DEPCMD}
3544     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3545     DEPCCFLAGS=$_flags
3546 fi
3547
3548 if $ar 2>&1 | grep -q Microsoft; then
3549     arflags="-nologo"
3550     ar_o='-out:$@'
3551 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3552     arflags="rq"
3553     ar_o='$@'
3554 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3555     arflags='-Xany -r -c'
3556     ar_o='$@'
3557 else
3558     arflags="rc"
3559     ar_o='$@'
3560 fi
3561
3562 add_cflags $extra_cflags
3563 add_cxxflags $extra_cxxflags
3564 add_asflags $extra_cflags
3565
3566 if test -n "$sysroot"; then
3567     case "$cc_type" in
3568         gcc|llvm_gcc|clang)
3569             add_cppflags --sysroot="$sysroot"
3570             add_ldflags --sysroot="$sysroot"
3571 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3572             add_cppflags -isysroot "$sysroot"
3573             add_ldflags -isysroot "$sysroot"
3574         ;;
3575         tms470)
3576             add_cppflags -I"$sysinclude"
3577             add_ldflags  --sysroot="$sysroot"
3578         ;;
3579     esac
3580 fi
3581
3582 if test "$cpu" = host; then
3583     enabled cross_compile &&
3584         die "--cpu=host makes no sense when cross-compiling."
3585
3586     case "$cc_type" in
3587         gcc|llvm_gcc)
3588             check_native(){
3589                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3590                 sed -n "/cc1.*$1=/{
3591                             s/.*$1=\\([^ ]*\\).*/\\1/
3592                             p
3593                             q
3594                         }" $TMPE
3595             }
3596             cpu=$(check_native -march || check_native -mcpu)
3597         ;;
3598     esac
3599
3600     test "${cpu:-host}" = host &&
3601         die "--cpu=host not supported with compiler $cc"
3602 fi
3603
3604 # Deal with common $arch aliases
3605 case "$arch" in
3606     aarch64|arm64)
3607         arch="aarch64"
3608     ;;
3609     arm*|iPad*|iPhone*)
3610         arch="arm"
3611     ;;
3612     mips*|IP*)
3613         arch="mips"
3614     ;;
3615     parisc*|hppa*)
3616         arch="parisc"
3617     ;;
3618     "Power Macintosh"|ppc*|powerpc*)
3619         arch="ppc"
3620     ;;
3621     s390|s390x)
3622         arch="s390"
3623     ;;
3624     sh4|sh)
3625         arch="sh4"
3626     ;;
3627     sun4u|sparc*)
3628         arch="sparc"
3629     ;;
3630     tilegx|tile-gx)
3631         arch="tilegx"
3632     ;;
3633     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3634         arch="x86"
3635     ;;
3636 esac
3637
3638 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3639 enable $arch
3640
3641 # Add processor-specific flags
3642 if enabled aarch64; then
3643
3644     case $cpu in
3645         armv*)
3646             cpuflags="-march=$cpu"
3647         ;;
3648         *)
3649             cpuflags="-mcpu=$cpu"
3650         ;;
3651     esac
3652
3653 elif enabled alpha; then
3654
3655     cpuflags="-mcpu=$cpu"
3656
3657 elif enabled arm; then
3658
3659     check_arm_arch() {
3660         check_cpp_condition stddef.h \
3661             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3662             $cpuflags
3663     }
3664
3665     probe_arm_arch() {
3666         if   check_arm_arch 4;        then echo armv4;
3667         elif check_arm_arch 4T;       then echo armv4t;
3668         elif check_arm_arch 5;        then echo armv5;
3669         elif check_arm_arch 5E;       then echo armv5e;
3670         elif check_arm_arch 5T;       then echo armv5t;
3671         elif check_arm_arch 5TE;      then echo armv5te;
3672         elif check_arm_arch 5TEJ;     then echo armv5te;
3673         elif check_arm_arch 6;        then echo armv6;
3674         elif check_arm_arch 6J;       then echo armv6j;
3675         elif check_arm_arch 6K;       then echo armv6k;
3676         elif check_arm_arch 6Z;       then echo armv6z;
3677         elif check_arm_arch 6ZK;      then echo armv6zk;
3678         elif check_arm_arch 6T2;      then echo armv6t2;
3679         elif check_arm_arch 7;        then echo armv7;
3680         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3681         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3682         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3683         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3684         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3685         fi
3686     }
3687
3688     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3689
3690     case $cpu in
3691         armv*)
3692             cpuflags="-march=$cpu"
3693             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3694         ;;
3695         *)
3696             cpuflags="-mcpu=$cpu"
3697             case $cpu in
3698                 cortex-a*)                               subarch=armv7a  ;;
3699                 cortex-r*)                               subarch=armv7r  ;;
3700                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3701                 arm11*)                                  subarch=armv6   ;;
3702                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3703                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3704                 *)                             subarch=$(probe_arm_arch) ;;
3705             esac
3706         ;;
3707     esac
3708
3709     case "$subarch" in
3710         armv5t*)    enable fast_clz                ;;
3711         armv[6-8]*)
3712             enable fast_clz
3713             disabled fast_unaligned || enable fast_unaligned
3714             ;;
3715     esac
3716
3717 elif enabled avr32; then
3718
3719     case $cpu in
3720         ap7[02]0[0-2])
3721             subarch="avr32_ap"
3722             cpuflags="-mpart=$cpu"
3723         ;;
3724         ap)
3725             subarch="avr32_ap"
3726             cpuflags="-march=$cpu"
3727         ;;
3728         uc3[ab]*)
3729             subarch="avr32_uc"
3730             cpuflags="-mcpu=$cpu"
3731         ;;
3732         uc)
3733             subarch="avr32_uc"
3734             cpuflags="-march=$cpu"
3735         ;;
3736     esac
3737
3738 elif enabled bfin; then
3739
3740     cpuflags="-mcpu=$cpu"
3741
3742 elif enabled mips; then
3743
3744     cpuflags="-march=$cpu"
3745
3746     case $cpu in
3747         24kc)
3748             disable mipsfpu
3749             disable mipsdspr1
3750             disable mipsdspr2
3751         ;;
3752         24kf*)
3753             disable mipsdspr1
3754             disable mipsdspr2
3755         ;;
3756         24kec|34kc|1004kc)
3757             disable mipsfpu
3758             disable mipsdspr2
3759         ;;
3760         24kef*|34kf*|1004kf*)
3761             disable mipsdspr2
3762         ;;
3763         74kc)
3764             disable mipsfpu
3765         ;;
3766     esac
3767
3768 elif enabled ppc; then
3769
3770     disable ldbrx
3771     disable vsx
3772
3773     case $(tolower $cpu) in
3774         601|ppc601|powerpc601)
3775             cpuflags="-mcpu=601"
3776             disable altivec
3777         ;;
3778         603*|ppc603*|powerpc603*)
3779             cpuflags="-mcpu=603"
3780             disable altivec
3781         ;;
3782         604*|ppc604*|powerpc604*)
3783             cpuflags="-mcpu=604"
3784             disable altivec
3785         ;;
3786         g3|75*|ppc75*|powerpc75*)
3787             cpuflags="-mcpu=750"
3788             disable altivec
3789         ;;
3790         g4|745*|ppc745*|powerpc745*)
3791             cpuflags="-mcpu=7450"
3792         ;;
3793         74*|ppc74*|powerpc74*)
3794             cpuflags="-mcpu=7400"
3795         ;;
3796         g5|970|ppc970|powerpc970)
3797             cpuflags="-mcpu=970"
3798         ;;
3799         power[3-8]*)
3800             cpuflags="-mcpu=$cpu"
3801         ;;
3802         cell)
3803             cpuflags="-mcpu=cell"
3804             enable ldbrx
3805         ;;
3806         e500mc)
3807             cpuflags="-mcpu=e500mc"
3808             disable altivec
3809         ;;
3810         e500v2)
3811             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3812             disable altivec
3813             disable dcbzl
3814         ;;
3815         e500)
3816             cpuflags="-mcpu=8540 -mhard-float"
3817             disable altivec
3818             disable dcbzl
3819         ;;
3820     esac
3821
3822 elif enabled sparc; then
3823
3824     case $cpu in
3825         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3826             cpuflags="-mcpu=$cpu"
3827         ;;
3828         ultrasparc*|niagara[234])
3829             cpuflags="-mcpu=$cpu"
3830         ;;
3831     esac
3832
3833 elif enabled x86; then
3834
3835     case $cpu in
3836         i[345]86|pentium)
3837             cpuflags="-march=$cpu"
3838             disable mmx
3839         ;;
3840         # targets that do NOT support nopl and conditional mov (cmov)
3841         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3842             cpuflags="-march=$cpu"
3843             disable i686
3844         ;;
3845         # targets that do support nopl and conditional mov (cmov)
3846         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3847         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3848             cpuflags="-march=$cpu"
3849             enable i686
3850             enable fast_cmov
3851         ;;
3852         # targets that do support conditional mov but on which it's slow
3853         pentium4|pentium4m|prescott|nocona)
3854             cpuflags="-march=$cpu"
3855             enable i686
3856             disable fast_cmov
3857         ;;
3858     esac
3859
3860 fi
3861
3862 if [ "$cpu" != generic ]; then
3863     add_cflags  $cpuflags
3864     add_asflags $cpuflags
3865 fi
3866
3867 # compiler sanity check
3868 check_exec <<EOF
3869 int main(void){ return 0; }
3870 EOF
3871 if test "$?" != 0; then
3872     echo "$cc is unable to create an executable file."
3873     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3874         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3875         echo "Only do this if you know what cross compiling means."
3876     fi
3877     die "C compiler test failed."
3878 fi
3879
3880 add_cppflags -D_ISOC99_SOURCE
3881 add_cxxflags -D__STDC_CONSTANT_MACROS
3882 check_cflags -std=c99
3883 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3884 #include <stdlib.h>
3885 EOF
3886 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3887 #include <stdlib.h>
3888 EOF
3889
3890 add_host_cppflags -D_ISOC99_SOURCE
3891 check_host_cflags -std=c99
3892 check_host_cflags -Wall
3893 check_host_cflags -O3
3894
3895 check_64bit(){
3896     arch32=$1
3897     arch64=$2
3898     expr=$3
3899     check_code cc "" "int test[2*($expr) - 1]" &&
3900         subarch=$arch64 || subarch=$arch32
3901 }
3902
3903 case "$arch" in
3904     aarch64|alpha|ia64)
3905         spic=$shared
3906     ;;
3907     mips)
3908         check_64bit mips mips64 '_MIPS_SIM > 1'
3909         spic=$shared
3910     ;;
3911     parisc)
3912         check_64bit parisc parisc64 'sizeof(void *) > 4'
3913         spic=$shared
3914     ;;
3915     ppc)
3916         check_64bit ppc ppc64 'sizeof(void *) > 4'
3917         spic=$shared
3918     ;;
3919     s390)
3920         check_64bit s390 s390x 'sizeof(void *) > 4'
3921         spic=$shared
3922     ;;
3923     sparc)
3924         check_64bit sparc sparc64 'sizeof(void *) > 4'
3925         spic=$shared
3926     ;;
3927     x86)
3928         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3929         if test "$subarch" = "x86_64"; then
3930             spic=$shared
3931         fi
3932     ;;
3933     ppc)
3934         check_cc <<EOF && subarch="ppc64"
3935         int test[(int)sizeof(char*) - 7];
3936 EOF
3937     ;;
3938 esac
3939
3940 enable $subarch
3941 enabled spic && enable_weak pic
3942
3943 # OS specific
3944 case $target_os in
3945     aix)
3946         SHFLAGS=-shared
3947         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3948         enabled shared && add_ldflags -Wl,-brtl
3949         ;;
3950     android)
3951         disable symver
3952         SLIB_INSTALL_NAME='$(SLIBNAME)'
3953         SLIB_INSTALL_LINKS=
3954         # soname not set on purpose
3955         SHFLAGS=-shared
3956         ;;
3957     haiku)
3958         prefix_default="/boot/common"
3959         network_extralibs="-lnetwork"
3960         host_libs=
3961         ;;
3962     sunos)
3963         SHFLAGS='-shared -Wl,-h,$$(@F)'
3964         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3965         network_extralibs="-lsocket -lnsl"
3966         # When using suncc to build, the Solaris linker will mark
3967         # an executable with each instruction set encountered by
3968         # the Solaris assembler.  As our libraries contain their own
3969         # guards for processor-specific code, instead suppress
3970         # generation of the HWCAPS ELF section on Solaris x86 only.
3971         enabled_all suncc x86 &&
3972             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3973             add_ldflags -Wl,-M,mapfile
3974         nm_default='nm -P -g'
3975         ;;
3976     netbsd)
3977         disable symver
3978         oss_indev_extralibs="-lossaudio"
3979         oss_outdev_extralibs="-lossaudio"
3980         enabled gcc || check_ldflags -Wl,-zmuldefs
3981         ;;
3982     openbsd|bitrig)
3983         disable symver
3984         SHFLAGS='-shared'
3985         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3986         SLIB_INSTALL_LINKS=
3987         oss_indev_extralibs="-lossaudio"
3988         oss_outdev_extralibs="-lossaudio"
3989         ;;
3990     dragonfly)
3991         disable symver
3992         ;;
3993     freebsd)
3994         ;;
3995     bsd/os)
3996         add_extralibs -lpoll -lgnugetopt
3997         strip="strip -d"
3998         ;;
3999     darwin)
4000         enabled ppc && add_asflags -force_cpusubtype_ALL
4001         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4002         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4003         strip="${strip} -x"
4004         add_ldflags -Wl,-dynamic,-search_paths_first
4005         SLIBSUF=".dylib"
4006         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4007         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4008         objformat="macho"
4009         enabled x86_64 && objformat="macho64"
4010         enabled_any pic shared ||
4011             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4012         ;;
4013     mingw32*)
4014         if test $target_os = "mingw32ce"; then
4015             disable network
4016         else
4017             target_os=mingw32
4018         fi
4019         LIBTARGET=i386
4020         if enabled x86_64; then
4021             LIBTARGET="i386:x86-64"
4022         elif enabled arm; then
4023             LIBTARGET=arm-wince
4024         fi
4025         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4026         check_ldflags -Wl,--nxcompat
4027         check_ldflags -Wl,--dynamicbase
4028         shlibdir_default="$bindir_default"
4029         SLIBPREF=""
4030         SLIBSUF=".dll"
4031         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4032         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4033         dlltool="${cross_prefix}dlltool"
4034         if check_cmd lib.exe -list; then
4035             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4036             if enabled x86_64; then
4037                 LIBTARGET=x64
4038             fi
4039         elif check_cmd $dlltool --version; then
4040             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4041         fi
4042         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4043         SLIB_INSTALL_LINKS=
4044         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4045         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4046         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4047         objformat="win32"
4048         ranlib=:
4049         enable dos_paths
4050         ;;
4051     win32|win64)
4052         disable symver
4053         if enabled shared; then
4054             # Link to the import library instead of the normal static library
4055             # for shared libs.
4056             LD_LIB='%.lib'
4057             # Cannot build both shared and static libs with MSVC or icl.
4058             disable static
4059         fi
4060         shlibdir_default="$bindir_default"
4061         SLIBPREF=""
4062         SLIBSUF=".dll"
4063         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4064         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4065         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4066         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4067         SLIB_INSTALL_LINKS=
4068         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4069         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4070         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4071         objformat="win32"
4072         ranlib=:
4073         enable dos_paths
4074         ;;
4075     cygwin*)
4076         target_os=cygwin
4077         shlibdir_default="$bindir_default"
4078         SLIBPREF="cyg"
4079         SLIBSUF=".dll"
4080         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4081         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4082         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4083         SLIB_INSTALL_LINKS=
4084         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4085         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4086         objformat="win32"
4087         enable dos_paths
4088         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4089         ;;
4090     *-dos|freedos|opendos)
4091         network_extralibs="-lsocket"
4092         objformat="coff"
4093         enable dos_paths
4094         add_cppflags -U__STRICT_ANSI__
4095         ;;
4096     linux)
4097         enable dv1394
4098         ;;
4099     irix*)
4100         target_os=irix
4101         ranlib="echo ignoring ranlib"
4102         ;;
4103     os/2*)
4104         strip="lxlite -CS"
4105         ln_s="cp -f"
4106         objformat="aout"
4107         add_cppflags -D_GNU_SOURCE
4108         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4109         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4110         LIBSUF="_s.a"
4111         SLIBPREF=""
4112         SLIBSUF=".dll"
4113         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4114         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4115         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4116             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4117             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4118             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4119             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4120             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4121         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4122             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4123         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4124         enable dos_paths
4125         enable_weak os2threads
4126         ;;
4127     gnu/kfreebsd)
4128         add_cppflags -D_BSD_SOURCE
4129         ;;
4130     gnu)
4131         ;;
4132     qnx)
4133         add_cppflags -D_QNX_SOURCE
4134         network_extralibs="-lsocket"
4135         ;;
4136     symbian)
4137         SLIBSUF=".dll"
4138         enable dos_paths
4139         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4140         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4141         add_ldflags -Wl,--target1-abs,--no-undefined \
4142                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4143                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4144         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4145                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4146                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4147         ;;
4148     osf1)
4149         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4150         ;;
4151     minix)
4152         ;;
4153     plan9)
4154         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4155                      -D_REENTRANT_SOURCE        \
4156                      -D_RESEARCH_SOURCE         \
4157                      -DFD_SETSIZE=96            \
4158                      -DHAVE_SOCK_OPTS
4159         add_compat strtod.o strtod=avpriv_strtod
4160         network_extralibs='-lbsd'
4161         exeobjs=compat/plan9/main.o
4162         disable ffserver
4163         cp_f='cp'
4164         ;;
4165     none)
4166         ;;
4167     *)
4168         die "Unknown OS '$target_os'."
4169         ;;
4170 esac
4171
4172 # determine libc flavour
4173
4174 probe_libc(){
4175     pfx=$1
4176     pfx_no_=${pfx%_}
4177     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4178     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4179         eval ${pfx}libc_type=uclibc
4180         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4181     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4182         eval ${pfx}libc_type=glibc
4183         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4184     # MinGW headers can be installed on Cygwin, so check for newlib first.
4185     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4186         eval ${pfx}libc_type=newlib
4187         add_${pfx}cppflags -U__STRICT_ANSI__
4188     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4189     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4190         eval ${pfx}libc_type=mingw64
4191         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4192             add_compat msvcrt/snprintf.o
4193             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4194         fi
4195         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4196         eval test \$${pfx_no_}cc_type = "gcc" &&
4197             add_${pfx}cppflags -D__printf__=__gnu_printf__
4198     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4199          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4200         eval ${pfx}libc_type=mingw32
4201         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4202             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4203             die "ERROR: MinGW32 runtime version must be >= 3.15."
4204         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4205         eval test \$${pfx_no_}cc_type = "gcc" &&
4206             add_${pfx}cppflags -D__printf__=__gnu_printf__
4207     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4208         eval ${pfx}libc_type=msvcrt
4209         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4210         # 0x601 by default unless something else is set by the user.
4211         # This can easily lead to us detecting functions only present
4212         # in such new versions and producing binaries requiring windows 7.0.
4213         # Therefore explicitly set the default to XP unless the user has
4214         # set something else on the command line.
4215         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4216             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4217     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4218         eval ${pfx}libc_type=klibc
4219     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4220         eval ${pfx}libc_type=bionic
4221     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4222         eval ${pfx}libc_type=solaris
4223         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4224     fi
4225 }
4226
4227 probe_libc
4228 test -n "$libc_type" && enable libc_$libc_type
4229 probe_libc host_
4230 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4231
4232 case $libc_type in
4233     bionic)
4234         add_compat strtod.o strtod=avpriv_strtod
4235         ;;
4236     msvcrt)
4237         add_compat strtod.o strtod=avpriv_strtod
4238         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4239                                      _snprintf=avpriv_snprintf  \
4240                                      vsnprintf=avpriv_vsnprintf
4241         ;;
4242 esac
4243
4244 # hacks for compiler/libc/os combinations
4245
4246 if enabled_all tms470 libc_glibc; then
4247     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4248     add_cppflags -D__USER_LABEL_PREFIX__=
4249     add_cppflags -D__builtin_memset=memset
4250     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4251     add_cflags   -pds=48    # incompatible redefinition of macro
4252 fi
4253
4254 if enabled_all ccc libc_glibc; then
4255     add_ldflags -Wl,-z,now  # calls to libots crash without this
4256 fi
4257
4258 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4259     add_cppflags '-I\$(SRC_PATH)/compat/float'
4260
4261 esc(){
4262     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4263 }
4264
4265 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4266
4267 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4268
4269 set_default $PATHS_LIST
4270 set_default nm
4271
4272 # we need to build at least one lib type
4273 if ! enabled_any static shared; then
4274     cat <<EOF
4275 At least one library type must be built.
4276 Specify --enable-static to build the static libraries or --enable-shared to
4277 build the shared libraries as well. To only build the shared libraries specify
4278 --disable-static in addition to --enable-shared.
4279 EOF
4280     exit 1;
4281 fi
4282
4283 die_license_disabled() {
4284     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4285 }
4286
4287 die_license_disabled_gpl() {
4288     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4289 }
4290
4291 die_license_disabled gpl frei0r
4292 die_license_disabled gpl libcdio
4293 die_license_disabled gpl libsmbclient
4294 die_license_disabled gpl libutvideo
4295 die_license_disabled gpl libvidstab
4296 die_license_disabled gpl libx264
4297 die_license_disabled gpl libx265
4298 die_license_disabled gpl libxavs
4299 die_license_disabled gpl libxvid
4300 die_license_disabled gpl libzvbi
4301 die_license_disabled gpl x11grab
4302
4303 die_license_disabled nonfree libaacplus
4304 die_license_disabled nonfree libfaac
4305 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4306 enabled gpl && die_license_disabled_gpl nonfree openssl
4307
4308 die_license_disabled version3 libopencore_amrnb
4309 die_license_disabled version3 libopencore_amrwb
4310 die_license_disabled version3 libsmbclient
4311 die_license_disabled version3 libvo_aacenc
4312 die_license_disabled version3 libvo_amrwbenc
4313
4314 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4315
4316 disabled optimizations || check_cflags -fomit-frame-pointer
4317
4318 enable_weak_pic() {
4319     disabled pic && return
4320     enable pic
4321     add_cppflags -DPIC
4322     case "$target_os" in
4323     mingw*|cygwin*)
4324         ;;
4325     *)
4326         add_cflags -fPIC
4327         ;;
4328     esac
4329     add_asflags  -fPIC
4330 }
4331
4332 enabled pic && enable_weak_pic
4333
4334 check_cc <<EOF || die "Symbol mangling check failed."
4335 int ff_extern;
4336 EOF
4337 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4338 extern_prefix=${sym%%ff_extern*}
4339
4340 check_cc <<EOF && enable_weak inline_asm
4341 void foo(void) { __asm__ volatile ("" ::); }
4342 EOF
4343
4344 _restrict=
4345 for restrict_keyword in restrict __restrict__ __restrict; do
4346     check_cc <<EOF && _restrict=$restrict_keyword && break
4347 void foo(char * $restrict_keyword p);
4348 EOF
4349 done
4350
4351 check_cc <<EOF && enable pragma_deprecated
4352 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4353 EOF
4354
4355 check_cc <<EOF && enable attribute_packed
4356 struct { int x; } __attribute__((packed)) x;
4357 EOF
4358
4359 check_cc <<EOF && enable attribute_may_alias
4360 union { int x; } __attribute__((may_alias)) x;
4361 EOF
4362
4363 check_cc <<EOF || die "endian test failed"
4364 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4365 EOF
4366 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4367
4368 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4369     if ! enabled bigendian ;then
4370         enable vsx
4371     fi
4372 fi
4373
4374 check_gas() {
4375     log "check_gas using '$as' as AS"
4376     # :vararg is used on aarch64, arm and ppc altivec
4377     check_as <<EOF || return 1
4378 .macro m n, y:vararg=0
4379 \n: .int \y
4380 .endm
4381 m x
4382 EOF
4383     # .altmacro is only used in arm asm
4384     ! enabled arm || check_as <<EOF || return 1
4385 .altmacro
4386 EOF
4387     enable gnu_as
4388     return 0
4389 }
4390
4391 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4392     nogas=:
4393     enabled_any arm aarch64 && nogas=die
4394     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4395     as_noop=-v
4396
4397     case $as_type in
4398         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4399         gcc)  gaspp_as_type=gas ;;
4400         *)    gaspp_as_type=$as_type ;;
4401     esac
4402
4403     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4404
4405     test "${as#*gas-preprocessor.pl}" != "$as" ||
4406     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4407         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4408
4409     if ! check_gas ; then
4410         as=${gas:=$as}
4411         check_gas || \
4412             $nogas "GNU assembler not found, install/update gas-preprocessor"
4413     fi
4414
4415     check_as <<EOF && enable as_func
4416 .func test
4417 .endfunc
4418 EOF
4419 fi
4420
4421 check_inline_asm inline_asm_labels '"1:\n"'
4422
4423 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4424
4425 if enabled aarch64; then
4426     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4427     # internal assembler in clang 3.3 does not support this instruction
4428     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4429     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4430
4431     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4432
4433 elif enabled alpha; then
4434
4435     check_cflags -mieee
4436
4437 elif enabled arm; then
4438
4439     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4440 float func(float a, float b){ return a+b; }
4441 EOF
4442
4443     enabled thumb && check_cflags -mthumb || check_cflags -marm
4444
4445     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4446         enable vfp_args
4447     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4448         case "${cross_prefix:-$cc}" in
4449             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4450             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4451 __asm__ (".eabi_attribute 28, 1");
4452 int main(void) { return 0; }
4453 EOF
4454         esac
4455         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4456     fi
4457
4458     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4459     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4460     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4461     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4462     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4463     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4464     enabled setend  && check_insn setend  'setend be'
4465
4466     [ $target_os = linux ] || [ $target_os = android ] ||
4467         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4468             $ARCH_EXT_LIST_ARM
4469
4470     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4471
4472     check_as <<EOF && enable as_dn_directive
4473 ra .dn d0.i16
4474 .unreq ra
4475 EOF
4476
4477     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4478
4479 elif enabled mips; then
4480
4481     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4482     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4483      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4484     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4485      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4486     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4487      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4488     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4489      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4490
4491 elif enabled parisc; then
4492
4493     if enabled gcc; then
4494         case $($cc -dumpversion) in
4495             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4496         esac
4497     fi
4498
4499 elif enabled ppc; then
4500
4501     enable local_aligned_8 local_aligned_16 local_aligned_32
4502
4503     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4504     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4505     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4506     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4507
4508     # AltiVec flags: The FSF version of GCC differs from the Apple version
4509     if enabled altivec; then
4510         check_cflags -maltivec -mabi=altivec &&
4511         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4512         check_cflags -faltivec
4513
4514         # check if our compiler supports Motorola AltiVec C API
4515         check_cc <<EOF || disable altivec
4516 $inc_altivec_h
4517 int main(void) {
4518     vector signed int v1 = (vector signed int) { 0 };
4519     vector signed int v2 = (vector signed int) { 1 };
4520     v1 = vec_add(v1, v2);
4521     return 0;
4522 }
4523 EOF
4524
4525         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4526     fi
4527
4528     if enabled vsx; then
4529         check_cflags -mvsx
4530     fi
4531 elif enabled x86; then
4532
4533     check_builtin rdtsc    intrin.h   "__rdtsc()"
4534     check_builtin mm_empty mmintrin.h "_mm_empty()"
4535
4536     enable local_aligned_8 local_aligned_16 local_aligned_32
4537
4538     # check whether EBP is available on x86
4539     # As 'i' is stored on the stack, this program will crash
4540     # if the base pointer is used to access it because the
4541     # base pointer is cleared in the inline assembly code.
4542     check_exec_crash <<EOF && enable ebp_available
4543 volatile int i=0;
4544 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4545 return i;
4546 EOF
4547
4548     # check whether EBX is available on x86
4549     check_inline_asm ebx_available '""::"b"(0)' &&
4550         check_inline_asm ebx_available '"":::"%ebx"'
4551
4552     # check whether xmm clobbers are supported
4553     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4554
4555     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4556         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4557
4558     # check whether binutils is new enough to compile SSSE3/MMXEXT
4559     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4560     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4561
4562     if ! disabled_any asm mmx yasm; then
4563         if check_cmd $yasmexe --version; then
4564             enabled x86_64 && yasm_extra="-m amd64"
4565             yasm_debug="-g dwarf2"
4566         elif check_cmd nasm -v; then
4567             yasmexe=nasm
4568             yasm_debug="-g -F dwarf"
4569             if enabled x86_64; then
4570                 case "$objformat" in
4571                     elf)   objformat=elf64 ;;
4572                     win32) objformat=win64 ;;
4573                 esac
4574             fi
4575         fi
4576
4577         YASMFLAGS="-f $objformat $yasm_extra"
4578         enabled pic               && append YASMFLAGS "-DPIC"
4579         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4580         case "$objformat" in
4581             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4582         esac
4583
4584         check_yasm "movbe ecx, [5]" && enable yasm ||
4585             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4586         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4587         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4588         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4589         check_yasm "CPU amdnop" || disable cpunop
4590     fi
4591
4592     case "$cpu" in
4593         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4594             disable fast_clz
4595         ;;
4596     esac
4597
4598 fi
4599
4600 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4601
4602 check_ldflags -Wl,--as-needed
4603
4604 if check_func dlopen; then
4605     ldl=
4606 elif check_func dlopen -ldl; then
4607     ldl=-ldl
4608 fi
4609
4610 if ! disabled network; then
4611     check_func getaddrinfo $network_extralibs
4612     check_func getservbyport $network_extralibs
4613     check_func inet_aton $network_extralibs
4614
4615     check_type netdb.h "struct addrinfo"
4616     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4617     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4618     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4619     check_type poll.h "struct pollfd"
4620     check_type netinet/sctp.h "struct sctp_event_subscribe"
4621     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4622     check_type netinet/in.h "struct sockaddr_in6"
4623     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4624     check_type "sys/types.h sys/socket.h" socklen_t
4625
4626     # Prefer arpa/inet.h over winsock2
4627     if check_header arpa/inet.h ; then
4628         check_func closesocket
4629     elif check_header winsock2.h ; then
4630         check_func_headers winsock2.h closesocket -lws2 &&
4631             network_extralibs="-lws2" ||
4632         { check_func_headers winsock2.h closesocket -lws2_32 &&
4633             network_extralibs="-lws2_32"; } || disable winsock2_h network
4634         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4635
4636         check_type ws2tcpip.h socklen_t
4637         check_type ws2tcpip.h "struct addrinfo"
4638         check_type ws2tcpip.h "struct group_source_req"
4639         check_type ws2tcpip.h "struct ip_mreq_source"
4640         check_type ws2tcpip.h "struct ipv6_mreq"
4641         check_type winsock2.h "struct pollfd"
4642         check_struct winsock2.h "struct sockaddr" sa_len
4643         check_type ws2tcpip.h "struct sockaddr_in6"
4644         check_type ws2tcpip.h "struct sockaddr_storage"
4645     else
4646         disable network
4647     fi
4648 fi
4649
4650 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4651 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4652 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4653 check_builtin sarestart signal.h "SA_RESTART"
4654 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4655
4656 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4657 check_func  ${malloc_prefix}memalign            && enable memalign
4658 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4659
4660 check_func  access
4661 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt; }
4662 check_func  fcntl
4663 check_func  fork
4664 check_func  gethrtime
4665 check_func  getopt
4666 check_func  getrusage
4667 check_func  gettimeofday
4668 check_func  isatty
4669 check_func  localtime_r
4670 check_func  mach_absolute_time
4671 check_func  mkstemp
4672 check_func  mmap
4673 check_func  mprotect
4674 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4675 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4676 check_func  sched_getaffinity
4677 check_func  setrlimit
4678 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4679 check_func  strerror_r
4680 check_func  sysconf
4681 check_func  sysctl
4682 check_func  usleep
4683
4684 check_func_headers conio.h kbhit
4685 check_func_headers io.h setmode
4686 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4687 check_func_headers stdlib.h getenv
4688
4689 check_func_headers windows.h CoTaskMemFree -lole32
4690 check_func_headers windows.h GetProcessAffinityMask
4691 check_func_headers windows.h GetProcessTimes
4692 check_func_headers windows.h GetSystemTimeAsFileTime
4693 check_func_headers windows.h MapViewOfFile
4694 check_func_headers windows.h PeekNamedPipe
4695 check_func_headers windows.h SetConsoleTextAttribute
4696 check_func_headers windows.h Sleep
4697 check_func_headers windows.h VirtualAlloc
4698 check_func_headers glob.h glob
4699 enabled xlib &&
4700     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4701
4702 check_header cl/cl.h
4703 check_header direct.h
4704 check_header dlfcn.h
4705 check_header dxva.h
4706 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4707 check_header io.h
4708 check_header libcrystalhd/libcrystalhd_if.h
4709 check_header mach/mach_time.h
4710 check_header malloc.h
4711 check_header poll.h
4712 check_header sys/mman.h
4713 check_header sys/param.h
4714 check_header sys/resource.h
4715 check_header sys/select.h
4716 check_header sys/time.h
4717 check_header sys/un.h
4718 check_header termios.h
4719 check_header unistd.h
4720 check_header vdpau/vdpau.h
4721 check_header vdpau/vdpau_x11.h
4722 check_header VideoDecodeAcceleration/VDADecoder.h
4723 check_header windows.h
4724 check_header X11/extensions/XvMClib.h
4725 check_header asm/types.h
4726
4727 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4728 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4729 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4730
4731 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4732
4733 if ! disabled w32threads && ! enabled pthreads; then
4734     check_func_headers "windows.h process.h" _beginthreadex &&
4735         enable w32threads || disable w32threads
4736 fi
4737
4738 # check for some common methods of building with pthread support
4739 # do this before the optional library checks as some of them require pthreads
4740 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4741     enable pthreads
4742     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4743         add_cflags -pthread
4744         add_extralibs -pthread
4745     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4746         add_cflags -pthreads
4747         add_extralibs -pthreads
4748     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4749         add_cflags -ldl -pthread
4750         add_extralibs -ldl -pthread
4751     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4752         add_extralibs -lpthreadGC2
4753     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4754         :
4755     elif ! check_func pthread_join && ! check_func pthread_create; then
4756         disable pthreads
4757     fi
4758     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4759 fi
4760
4761
4762 if enabled pthreads; then
4763   check_func pthread_cancel
4764 fi
4765
4766 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4767 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4768 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
4769
4770 check_lib math.h sin -lm && LIBM="-lm"
4771 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4772
4773 atan2f_args=2
4774 ldexpf_args=2
4775 powf_args=2
4776 fminf_args=2
4777
4778 for func in $MATH_FUNCS; do
4779     eval check_mathfunc $func \${${func}_args:-1}
4780 done
4781
4782 # these are off by default, so fail if requested and not available
4783 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4784 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4785                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4786                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4787 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4788 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4789 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4790 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4791 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4792 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4793 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4794 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4795 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4796 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4797                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4798                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4799 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4800 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4801 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4802 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"
4803 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4804 enabled fontconfig        && enable libfontconfig
4805 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4806 enabled libfreetype       && require_libfreetype
4807 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4808 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4809 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4810                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4811                                done || die "ERROR: libgsm not found"; }
4812 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4813 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4814 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4815 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4816 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4817 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4818 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4819 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4820                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4821                                die "ERROR: libopenjpeg not found"; }
4822 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4823 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4824 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4825 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4826 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4827 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4828 enabled libsmbclient      && { { check_pkg_config smbclient libsmbclient.h smbc_init &&
4829                                  require_pkg_config smbclient libsmbclient.h smbc_init; } ||
4830                                  require smbclient libsmbclient.h smbc_init -lsmbclient; }
4831 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4832 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4833 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4834 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4835     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4836     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4837 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4838 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4839                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4840                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4841 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4842 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4843 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4844 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4845 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4846 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4847 enabled libvpx            && {
4848     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4849                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4850     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 ||
4851                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4852     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4853     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx || disable libvpx_vp9_encoder; } }
4854 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4855 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion &&
4856                              { check_code cc webp/encode.h "WebPPicture wp; wp.use_argb++" ||
4857                                die "ERROR: libwebp too old."; }
4858 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4859                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4860                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4861 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4862                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4863                                die "ERROR: libx265 version must be >= 17."; }
4864 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4865 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4866 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4867 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4868 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4869                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4870                                die "ERROR: openal not found"; } &&
4871                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4872                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4873 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4874                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4875                                die "ERROR: opencl not found"; } &&
4876                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4877                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4878                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4879 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4880                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4881                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4882                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4883                                die "ERROR: opengl not found."
4884                              }
4885 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4886                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4887                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4888                                die "ERROR: openssl not found"; }
4889 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4890
4891 if enabled gnutls; then
4892     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4893     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4894 fi
4895
4896 # libdc1394 check
4897 if enabled libdc1394; then
4898     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4899         enable libdc1394_2; } ||
4900     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4901         enable libdc1394_1; } ||
4902     die "ERROR: No version of libdc1394 found "
4903 fi
4904
4905 SDL_CONFIG="${cross_prefix}sdl-config"
4906 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4907     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4908     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4909     enable sdl
4910 else
4911   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4912     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4913     sdl_libs=$("${SDL_CONFIG}" --libs)
4914     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4915     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4916     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4917     enable sdl
4918   fi
4919 fi
4920 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4921
4922 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4923 enabled makeinfo && (makeinfo --version | \
4924                      grep -q 'makeinfo (GNU texinfo) 5' > /dev/null 2>&1) \
4925     && enable makeinfo_html || disable makeinfo_html
4926 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4927 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4928 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4929 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4930
4931 check_header linux/fb.h
4932 check_header linux/videodev.h
4933 check_header linux/videodev2.h
4934 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4935
4936 check_header sys/videoio.h
4937
4938 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4939 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4940 # w32api 3.12 had it defined wrong
4941 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4942
4943 check_type "dshow.h" IBaseFilter
4944
4945 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4946 { check_header dev/bktr/ioctl_meteor.h &&
4947   check_header dev/bktr/ioctl_bt848.h; } ||
4948 { check_header machine/ioctl_meteor.h &&
4949   check_header machine/ioctl_bt848.h; } ||
4950 { check_header dev/video/meteor/ioctl_meteor.h &&
4951   check_header dev/video/bktr/ioctl_bt848.h; } ||
4952 check_header dev/ic/bt8xx.h
4953
4954 check_header sndio.h
4955 if check_struct sys/soundcard.h audio_buf_info bytes; then
4956     enable_safe sys/soundcard.h
4957 else
4958     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4959     #include <sys/soundcard.h>
4960     audio_buf_info abc;
4961 EOF
4962 fi
4963 check_header soundcard.h
4964
4965 enabled_any alsa_indev alsa_outdev &&
4966     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4967
4968 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4969     check_func jack_port_get_latency_range -ljack
4970
4971 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4972
4973 if enabled libcdio; then
4974     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4975     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4976     die "ERROR: libcdio-paranoia not found"
4977 fi
4978
4979 enabled xlib &&
4980     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4981
4982 enabled x11grab                                           &&
4983 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4984 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4985 { enabled xlib || die "ERROR: Xlib not found"; }
4986
4987 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
4988
4989 enabled dxva2api_h &&
4990     check_cc <<EOF && enable dxva2api_cobj
4991 #define _WIN32_WINNT 0x0600
4992 #define COBJMACROS
4993 #include <windows.h>
4994 #include <d3d9.h>
4995 #include <dxva2api.h>
4996 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
4997 EOF
4998
4999 enabled vaapi &&
5000     check_lib va/va.h vaInitialize -lva ||
5001     disable vaapi
5002
5003 enabled vdpau &&
5004     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5005     disable vdpau
5006
5007 enabled vdpau && enabled xlib &&
5008     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5009     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5010     enable vdpau_x11
5011
5012 # Funny iconv installations are not unusual, so check it after all flags have been set
5013 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5014
5015 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5016
5017 # add some useful compiler flags if supported
5018 check_cflags -Wdeclaration-after-statement
5019 check_cflags -Wall
5020 check_cflags -Wdisabled-optimization
5021 check_cflags -Wpointer-arith
5022 check_cflags -Wredundant-decls
5023 check_cflags -Wwrite-strings
5024 check_cflags -Wtype-limits
5025 check_cflags -Wundef
5026 check_cflags -Wmissing-prototypes
5027 check_cflags -Wno-pointer-to-int-cast
5028 check_cflags -Wstrict-prototypes
5029 check_cflags -Wempty-body
5030 enabled extra_warnings && check_cflags -Winline
5031
5032 check_disable_warning(){
5033     warning_flag=-W${1#-Wno-}
5034     test_cflags $warning_flag && add_cflags $1
5035 }
5036
5037 check_disable_warning -Wno-parentheses
5038 check_disable_warning -Wno-switch
5039 check_disable_warning -Wno-format-zero-length
5040 check_disable_warning -Wno-pointer-sign
5041
5042 # add some linker flags
5043 check_ldflags -Wl,--warn-common
5044 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5045 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5046 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5047
5048 # add some strip flags
5049 # -wN '..@*' is more selective than -x, but not available everywhere.
5050 check_stripflags -wN \'..@*\' || check_stripflags -x
5051
5052 enabled neon_clobber_test &&
5053     check_ldflags -Wl,--wrap,avcodec_open2              \
5054                   -Wl,--wrap,avcodec_decode_audio4      \
5055                   -Wl,--wrap,avcodec_decode_video2      \
5056                   -Wl,--wrap,avcodec_decode_subtitle2   \
5057                   -Wl,--wrap,avcodec_encode_audio2      \
5058                   -Wl,--wrap,avcodec_encode_video2      \
5059                   -Wl,--wrap,avcodec_encode_subtitle    \
5060                   -Wl,--wrap,swr_convert                \
5061                   -Wl,--wrap,avresample_convert ||
5062     disable neon_clobber_test
5063
5064 enabled xmm_clobber_test &&
5065     check_ldflags -Wl,--wrap,avcodec_open2              \
5066                   -Wl,--wrap,avcodec_decode_audio4      \
5067                   -Wl,--wrap,avcodec_decode_video2      \
5068                   -Wl,--wrap,avcodec_decode_subtitle2   \
5069                   -Wl,--wrap,avcodec_encode_audio2      \
5070                   -Wl,--wrap,avcodec_encode_video       \
5071                   -Wl,--wrap,avcodec_encode_video2      \
5072                   -Wl,--wrap,avcodec_encode_subtitle    \
5073                   -Wl,--wrap,swr_convert                \
5074                   -Wl,--wrap,avresample_convert         \
5075                   -Wl,--wrap,sws_scale ||
5076     disable xmm_clobber_test
5077
5078 echo "X{};" > $TMPV
5079 if test_ldflags -Wl,--version-script,$TMPV; then
5080     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5081     check_cc <<EOF && enable symver_asm_label
5082 void ff_foo(void) __asm__ ("av_foo@VERSION");
5083 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5084 EOF
5085     check_cc <<EOF && enable symver_gnu_asm
5086 __asm__(".symver ff_foo,av_foo@VERSION");
5087 void ff_foo(void) {}
5088 EOF
5089 fi
5090
5091 if [ -z "$optflags" ]; then
5092     if enabled small; then
5093         optflags=$cflags_size
5094     elif enabled optimizations; then
5095         optflags=$cflags_speed
5096     else
5097         optflags=$cflags_noopt
5098     fi
5099 fi
5100
5101 check_optflags(){
5102     check_cflags "$@"
5103     enabled lto && check_ldflags "$@"
5104 }
5105
5106
5107 if enabled lto; then
5108     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5109     check_cflags  -flto
5110     check_ldflags -flto $cpuflags
5111     disable inline_asm_direct_symbol_refs
5112 fi
5113
5114 check_optflags $optflags
5115 check_optflags -fno-math-errno
5116 check_optflags -fno-signed-zeros
5117
5118 enabled ftrapv && check_cflags -ftrapv
5119
5120 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5121 int x;
5122 EOF
5123
5124
5125 if enabled icc; then
5126     # Just warnings, no remarks
5127     check_cflags -w1
5128     # -wd: Disable following warnings
5129     # 144, 167, 556: -Wno-pointer-sign
5130     # 188: enumerated type mixed with another type
5131     # 1292: attribute "foo" ignored
5132     # 1419: external declaration in primary source file
5133     # 10006: ignoring unknown option -fno-signed-zeros
5134     # 10148: ignoring unknown option -Wno-parentheses
5135     # 10156: ignoring option '-W'; no argument required
5136     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5137     # 11030: Warning unknown option --as-needed
5138     # 10156: ignoring option '-export'; no argument required
5139     check_ldflags -wd10156,11030
5140     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5141     enable ebp_available
5142     # The test above does not test linking
5143     enabled lto && disable symver_asm_label
5144     if enabled x86_32; then
5145         icc_version=$($cc -dumpversion)
5146         test ${icc_version%%.*} -ge 11 &&
5147             check_cflags -falign-stack=maintain-16-byte ||
5148             disable aligned_stack
5149     fi
5150 elif enabled ccc; then
5151     # disable some annoying warnings
5152     add_cflags -msg_disable bitnotint
5153     add_cflags -msg_disable mixfuncvoid
5154     add_cflags -msg_disable nonstandcast
5155     add_cflags -msg_disable unsupieee
5156 elif enabled gcc; then
5157     check_optflags -fno-tree-vectorize
5158     check_cflags -Werror=format-security
5159     check_cflags -Werror=implicit-function-declaration
5160     check_cflags -Werror=missing-prototypes
5161     check_cflags -Werror=return-type
5162     check_cflags -Werror=vla
5163     check_cflags -Wformat
5164     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5165 elif enabled llvm_gcc; then
5166     check_cflags -mllvm -stack-alignment=16
5167 elif enabled clang; then
5168     check_cflags -mllvm -stack-alignment=16
5169     check_cflags -Qunused-arguments
5170     check_cflags -Werror=implicit-function-declaration
5171     check_cflags -Werror=missing-prototypes
5172     check_cflags -Werror=return-type
5173 elif enabled cparser; then
5174     add_cflags -Wno-missing-variable-declarations
5175     add_cflags -Wno-empty-statement
5176 elif enabled armcc; then
5177     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5178     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5179     # 2523: use of inline assembly is deprecated
5180     add_cflags -W${armcc_opt},--diag_suppress=2523
5181     add_cflags -W${armcc_opt},--diag_suppress=1207
5182     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5183     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5184     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5185     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5186 elif enabled tms470; then
5187     add_cflags -pds=824 -pds=837
5188     disable inline_asm
5189 elif enabled pathscale; then
5190     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5191 elif enabled_any msvc icl; then
5192     enabled x86_32 && disable aligned_stack
5193     enabled_all x86_32 debug && add_cflags -Oy-
5194     enabled debug && add_ldflags -debug
5195     enable pragma_deprecated
5196     if enabled icl; then
5197         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5198         # (correctly) on icl 13.x.
5199         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5200             add_cflags -Qansi-alias
5201         # Some inline asm is not compilable in debug
5202         if enabled debug; then
5203             disable ebp_available
5204             disable ebx_available
5205         fi
5206     fi
5207     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5208     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5209 fi
5210
5211 case $as_type in
5212     clang)
5213         add_asflags -Qunused-arguments
5214     ;;
5215 esac
5216
5217 case $ld_type in
5218     clang)
5219         check_ldflags -Qunused-arguments
5220     ;;
5221 esac
5222
5223 case $target_os in
5224     osf1)
5225         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5226     ;;
5227     plan9)
5228         add_cppflags -Dmain=plan9_main
5229     ;;
5230 esac
5231
5232 enable frame_thread_encoder
5233
5234 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5235
5236 check_deps $CONFIG_LIST       \
5237            $CONFIG_EXTRA      \
5238            $HAVE_LIST         \
5239            $ALL_COMPONENTS    \
5240
5241 enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
5242
5243
5244 if test $target_os = "haiku"; then
5245     disable memalign
5246     disable posix_memalign
5247 fi
5248
5249 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5250     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5251     enable dxva2_lib
5252
5253 ! enabled_any memalign posix_memalign aligned_malloc &&
5254     enabled simd_align_16 && enable memalign_hack
5255
5256 # add_dep lib dep
5257 # -> enable ${lib}_deps_${dep}
5258 # -> add $dep to ${lib}_deps only once
5259 add_dep() {
5260     lib=$1
5261     dep=$2
5262     enabled "${lib}_deps_${dep}" && return 0
5263     enable  "${lib}_deps_${dep}"
5264     prepend "${lib}_deps" $dep
5265 }
5266
5267 # merge deps lib components
5268 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5269 merge_deps() {
5270     lib=$1
5271     shift
5272     for comp in $*; do
5273         enabled $comp || continue
5274         eval "dep=\"\$${comp}_deps\""
5275         for d in $dep; do
5276             add_dep $lib $d
5277         done
5278     done
5279 }
5280
5281 merge_deps libavfilter $FILTER_LIST
5282
5283 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5284
5285 for thread in $THREADS_LIST; do
5286     if enabled $thread; then
5287         test -n "$thread_type" &&
5288             die "ERROR: Only one thread type must be selected." ||
5289             thread_type="$thread"
5290     fi
5291 done
5292
5293 enabled zlib && add_cppflags -DZLIB_CONST
5294
5295 # conditional library dependencies, in linking order
5296 enabled aconvert_filter     && prepend avfilter_deps "swresample"
5297 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5298 enabled aresample_filter    && prepend avfilter_deps "swresample"
5299 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5300 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5301 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5302 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5303 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5304 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5305 enabled mp_filter           && prepend avfilter_deps "avcodec"
5306 enabled pan_filter          && prepend avfilter_deps "swresample"
5307 enabled pp_filter           && prepend avfilter_deps "postproc"
5308 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5309 enabled resample_filter && prepend avfilter_deps "avresample"
5310 enabled sab_filter          && prepend avfilter_deps "swscale"
5311 enabled scale_filter    && prepend avfilter_deps "swscale"
5312 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5313 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5314 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5315
5316 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5317
5318 enabled opus_decoder    && prepend avcodec_deps "swresample"
5319
5320 expand_deps(){
5321     lib_deps=${1}_deps
5322     eval "deps=\$$lib_deps"
5323     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5324     unique $lib_deps
5325 }
5326
5327 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5328 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5329
5330 map 'expand_deps $v' $LIBRARY_LIST
5331
5332 echo "install prefix            $prefix"
5333 echo "source path               $source_path"
5334 echo "C compiler                $cc"
5335 echo "C library                 $libc_type"
5336 if test "$host_cc" != "$cc"; then
5337     echo "host C compiler           $host_cc"
5338     echo "host C library            $host_libc_type"
5339 fi
5340 echo "ARCH                      $arch ($cpu)"
5341 if test "$build_suffix" != ""; then
5342     echo "build suffix              $build_suffix"
5343 fi
5344 if test "$progs_suffix" != ""; then
5345     echo "progs suffix              $progs_suffix"
5346 fi
5347 if test "$extra_version" != ""; then
5348     echo "version string suffix     $extra_version"
5349 fi
5350 echo "big-endian                ${bigendian-no}"
5351 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5352 if enabled x86; then
5353     echo "${yasmexe}                      ${yasm-no}"
5354     echo "MMX enabled               ${mmx-no}"
5355     echo "MMXEXT enabled            ${mmxext-no}"
5356     echo "3DNow! enabled            ${amd3dnow-no}"
5357     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5358     echo "SSE enabled               ${sse-no}"
5359     echo "SSSE3 enabled             ${ssse3-no}"
5360     echo "AVX enabled               ${avx-no}"
5361     echo "XOP enabled               ${xop-no}"
5362     echo "FMA3 enabled              ${fma3-no}"
5363     echo "FMA4 enabled              ${fma4-no}"
5364     echo "i686 features enabled     ${i686-no}"
5365     echo "CMOV is fast              ${fast_cmov-no}"
5366     echo "EBX available             ${ebx_available-no}"
5367     echo "EBP available             ${ebp_available-no}"
5368 fi
5369 if enabled aarch64; then
5370     echo "NEON enabled              ${neon-no}"
5371     echo "VFP enabled               ${vfp-no}"
5372 fi
5373 if enabled arm; then
5374     echo "ARMv5TE enabled           ${armv5te-no}"
5375     echo "ARMv6 enabled             ${armv6-no}"
5376     echo "ARMv6T2 enabled           ${armv6t2-no}"
5377     echo "VFP enabled               ${vfp-no}"
5378     echo "NEON enabled              ${neon-no}"
5379     echo "THUMB enabled             ${thumb-no}"
5380 fi
5381 if enabled mips; then
5382     echo "MIPS FPU enabled          ${mipsfpu-no}"
5383     echo "MIPS32R2 enabled          ${mips32r2-no}"
5384     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5385     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5386 fi
5387 if enabled ppc; then
5388     echo "AltiVec enabled           ${altivec-no}"
5389     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5390     echo "PPC VSX optimizations     ${vsx-no}"
5391     echo "dcbzl available           ${dcbzl-no}"
5392 fi
5393 echo "debug symbols             ${debug-no}"
5394 echo "strip symbols             ${stripping-no}"
5395 echo "optimize for size         ${small-no}"
5396 echo "optimizations             ${optimizations-no}"
5397 echo "static                    ${static-no}"
5398 echo "shared                    ${shared-no}"
5399 echo "postprocessing support    ${postproc-no}"
5400 echo "new filter support        ${avfilter-no}"
5401 echo "network support           ${network-no}"
5402 echo "threading support         ${thread_type-no}"
5403 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5404 echo "SDL support               ${sdl-no}"
5405 echo "opencl enabled            ${opencl-no}"
5406 echo "texi2html enabled         ${texi2html-no}"
5407 echo "perl enabled              ${perl-no}"
5408 echo "pod2man enabled           ${pod2man-no}"
5409 echo "makeinfo enabled          ${makeinfo-no}"
5410 echo "makeinfo supports HTML    ${makeinfo_html-no}"
5411 test -n "$random_seed" &&
5412     echo "random seed               ${random_seed}"
5413 echo
5414
5415 echo "External libraries:"
5416 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5417 echo
5418
5419 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5420     echo "Enabled ${type}s:"
5421     eval list=\$$(toupper $type)_LIST
5422     print_enabled '_*' $list | print_3_columns
5423     echo
5424 done
5425
5426 license="LGPL version 2.1 or later"
5427 if enabled nonfree; then
5428     license="nonfree and unredistributable"
5429 elif enabled gplv3; then
5430     license="GPL version 3 or later"
5431 elif enabled lgplv3; then
5432     license="LGPL version 3 or later"
5433 elif enabled gpl; then
5434     license="GPL version 2 or later"
5435 fi
5436
5437 echo "License: $license"
5438
5439 echo "Creating config.mak, config.h, and doc/config.texi..."
5440
5441 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5442
5443 enabled stripping || strip="echo skipping strip"
5444
5445 config_files="$TMPH config.mak doc/config.texi"
5446
5447 cat > config.mak <<EOF
5448 # Automatically generated by configure - do not modify!
5449 ifndef FFMPEG_CONFIG_MAK
5450 FFMPEG_CONFIG_MAK=1
5451 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5452 prefix=$prefix
5453 LIBDIR=\$(DESTDIR)$libdir
5454 SHLIBDIR=\$(DESTDIR)$shlibdir
5455 INCDIR=\$(DESTDIR)$incdir
5456 BINDIR=\$(DESTDIR)$bindir
5457 DATADIR=\$(DESTDIR)$datadir
5458 DOCDIR=\$(DESTDIR)$docdir
5459 MANDIR=\$(DESTDIR)$mandir
5460 SRC_PATH=$source_path
5461 ifndef MAIN_MAKEFILE
5462 SRC_PATH:=\$(SRC_PATH:.%=..%)
5463 endif
5464 CC_IDENT=$cc_ident
5465 ARCH=$arch
5466 INTRINSICS=$intrinsics
5467 CC=$cc
5468 CXX=$cxx
5469 AS=$as
5470 LD=$ld
5471 DEPCC=$dep_cc
5472 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5473 DEPAS=$as
5474 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5475 YASM=$yasmexe
5476 DEPYASM=$yasmexe
5477 AR=$ar
5478 ARFLAGS=$arflags
5479 AR_O=$ar_o
5480 RANLIB=$ranlib
5481 STRIP=$strip
5482 CP=cp -p
5483 LN_S=$ln_s
5484 CPPFLAGS=$CPPFLAGS
5485 CFLAGS=$CFLAGS
5486 CXXFLAGS=$CXXFLAGS
5487 ASFLAGS=$ASFLAGS
5488 AS_C=$AS_C
5489 AS_O=$AS_O
5490 CC_C=$CC_C
5491 CC_E=$CC_E
5492 CC_O=$CC_O
5493 CXX_C=$CXX_C
5494 CXX_O=$CXX_O
5495 LD_O=$LD_O
5496 LD_LIB=$LD_LIB
5497 LD_PATH=$LD_PATH
5498 DLLTOOL=$dlltool
5499 WINDRES=$windres
5500 DEPWINDRES=$dep_cc
5501 DOXYGEN=$doxygen
5502 LDFLAGS=$LDFLAGS
5503 LDEXEFLAGS=$LDEXEFLAGS
5504 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5505 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5506 YASMFLAGS=$YASMFLAGS
5507 BUILDSUF=$build_suffix
5508 PROGSSUF=$progs_suffix
5509 FULLNAME=$FULLNAME
5510 LIBPREF=$LIBPREF
5511 LIBSUF=$LIBSUF
5512 LIBNAME=$LIBNAME
5513 SLIBPREF=$SLIBPREF
5514 SLIBSUF=$SLIBSUF
5515 EXESUF=$EXESUF
5516 EXTRA_VERSION=$extra_version
5517 CCDEP=$CCDEP
5518 CXXDEP=$CXXDEP
5519 CCDEP_FLAGS=$CCDEP_FLAGS
5520 ASDEP=$ASDEP
5521 ASDEP_FLAGS=$ASDEP_FLAGS
5522 CC_DEPFLAGS=$CC_DEPFLAGS
5523 AS_DEPFLAGS=$AS_DEPFLAGS
5524 HOSTCC=$host_cc
5525 HOSTLD=$host_ld
5526 HOSTCFLAGS=$host_cflags
5527 HOSTCPPFLAGS=$host_cppflags
5528 HOSTEXESUF=$HOSTEXESUF
5529 HOSTLDFLAGS=$host_ldflags
5530 HOSTLIBS=$host_libs
5531 DEPHOSTCC=$host_cc
5532 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5533 HOSTCCDEP=$HOSTCCDEP
5534 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5535 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5536 HOSTCC_C=$HOSTCC_C
5537 HOSTCC_O=$HOSTCC_O
5538 HOSTLD_O=$HOSTLD_O
5539 TARGET_EXEC=$target_exec $target_exec_args
5540 TARGET_PATH=$target_path
5541 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5542 CFLAGS-ffplay=$sdl_cflags
5543 ZLIB=$($ldflags_filter -lz)
5544 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5545 EXTRALIBS=$extralibs
5546 COMPAT_OBJS=$compat_objs
5547 EXEOBJS=$exeobjs
5548 INSTALL=$install
5549 LIBTARGET=${LIBTARGET}
5550 SLIBNAME=${SLIBNAME}
5551 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5552 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5553 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5554 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5555 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5556 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5557 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5558 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5559 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5560 NOREDZONE_FLAGS=$noredzone_flags
5561 EOF
5562
5563 get_version(){
5564     lcname=lib${1}
5565     name=$(toupper $lcname)
5566     file=$source_path/$lcname/version.h
5567     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5568     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5569     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5570     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5571     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5572     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5573 }
5574
5575 map 'get_version $v' $LIBRARY_LIST
5576
5577 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5578
5579 print_program_libs(){
5580     eval "program_libs=\$${1}_libs"
5581     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5582 }
5583
5584 map 'print_program_libs $v' $PROGRAM_LIST
5585
5586 cat > $TMPH <<EOF
5587 /* Automatically generated by configure - do not modify! */
5588 #ifndef FFMPEG_CONFIG_H
5589 #define FFMPEG_CONFIG_H
5590 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5591 #define FFMPEG_LICENSE "$(c_escape $license)"
5592 #define CONFIG_THIS_YEAR 2014
5593 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5594 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5595 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5596 #define av_restrict $_restrict
5597 #define EXTERN_PREFIX "${extern_prefix}"
5598 #define EXTERN_ASM ${extern_prefix}
5599 #define BUILDSUF "$build_suffix"
5600 #define SLIBSUF "$SLIBSUF"
5601 #define HAVE_MMX2 HAVE_MMXEXT
5602 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5603 EOF
5604
5605 test -n "$assert_level" &&
5606     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5607
5608 test -n "$malloc_prefix" &&
5609     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5610
5611 if enabled yasm; then
5612     append config_files $TMPASM
5613     printf '' >$TMPASM
5614 fi
5615
5616 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5617
5618
5619 mkdir -p doc
5620 echo "@c auto-generated by configure" > doc/config.texi
5621
5622 print_config ARCH_   "$config_files" $ARCH_LIST
5623 print_config HAVE_   "$config_files" $HAVE_LIST
5624 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5625                                      $CONFIG_EXTRA      \
5626                                      $ALL_COMPONENTS    \
5627
5628 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5629 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5630
5631 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5632 cp_if_changed $TMPH config.h
5633 touch .config
5634
5635 enabled yasm && cp_if_changed $TMPASM config.asm
5636
5637 cat > $TMPH <<EOF
5638 /* Generated by ffconf */
5639 #ifndef AVUTIL_AVCONFIG_H
5640 #define AVUTIL_AVCONFIG_H
5641 EOF
5642
5643 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5644
5645 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5646
5647 cp_if_changed $TMPH libavutil/avconfig.h
5648
5649 if test -n "$WARNINGS"; then
5650     printf "\n$WARNINGS"
5651     enabled fatal_warnings && exit 1
5652 fi
5653
5654 # build pkg-config files
5655
5656 lib_version(){
5657     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5658 }
5659
5660 pkgconfig_generate(){
5661     name=$1
5662     shortname=${name#lib}${build_suffix}
5663     comment=$2
5664     version=$3
5665     libs=$4
5666     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5667     requires=${requires%, }
5668     enabled ${name#lib} || return 0
5669     mkdir -p $name
5670     cat <<EOF > $name/$name${build_suffix}.pc
5671 prefix=$prefix
5672 exec_prefix=\${prefix}
5673 libdir=$libdir
5674 includedir=$incdir
5675
5676 Name: $name
5677 Description: $comment
5678 Version: $version
5679 Requires: $(enabled shared || echo $requires)
5680 Requires.private: $(enabled shared && echo $requires)
5681 Conflicts:
5682 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5683 Libs.private: $(enabled shared && echo $libs)
5684 Cflags: -I\${includedir}
5685 EOF
5686
5687 mkdir -p doc/examples/pc-uninstalled
5688 includedir=${source_path}
5689 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5690     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5691 prefix=
5692 exec_prefix=
5693 libdir=\${pcfiledir}/../../../$name
5694 includedir=${includedir}
5695
5696 Name: $name
5697 Description: $comment
5698 Version: $version
5699 Requires: $requires
5700 Conflicts:
5701 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5702 Cflags: -I\${includedir}
5703 EOF
5704 }
5705
5706 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5707 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5708 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5709 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5710 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5711 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5712 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
5713 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5714 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"