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-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Hardware accelerators:
 152   --disable-dxva2          disable DXVA2 code [autodetect]
 153   --disable-vaapi          disable VAAPI code [autodetect]
 154   --disable-vda            disable VDA code [autodetect]
 155   --disable-vdpau          disable VDPAU code [autodetect]
 156
 157 Individual component options:
 158   --disable-everything     disable all components listed below
 159   --disable-encoder=NAME   disable encoder NAME
 160   --enable-encoder=NAME    enable encoder NAME
 161   --disable-encoders       disable all encoders
 162   --disable-decoder=NAME   disable decoder NAME
 163   --enable-decoder=NAME    enable decoder NAME
 164   --disable-decoders       disable all decoders
 165   --disable-hwaccel=NAME   disable hwaccel NAME
 166   --enable-hwaccel=NAME    enable hwaccel NAME
 167   --disable-hwaccels       disable all hwaccels
 168   --disable-muxer=NAME     disable muxer NAME
 169   --enable-muxer=NAME      enable muxer NAME
 170   --disable-muxers         disable all muxers
 171   --disable-demuxer=NAME   disable demuxer NAME
 172   --enable-demuxer=NAME    enable demuxer NAME
 173   --disable-demuxers       disable all demuxers
 174   --enable-parser=NAME     enable parser NAME
 175   --disable-parser=NAME    disable parser NAME
 176   --disable-parsers        disable all parsers
 177   --enable-bsf=NAME        enable bitstream filter NAME
 178   --disable-bsf=NAME       disable bitstream filter NAME
 179   --disable-bsfs           disable all bitstream filters
 180   --enable-protocol=NAME   enable protocol NAME
 181   --disable-protocol=NAME  disable protocol NAME
 182   --disable-protocols      disable all protocols
 183   --enable-indev=NAME      enable input device NAME
 184   --disable-indev=NAME     disable input device NAME
 185   --disable-indevs         disable input devices
 186   --enable-outdev=NAME     enable output device NAME
 187   --disable-outdev=NAME    disable output device NAME
 188   --disable-outdevs        disable output devices
 189   --disable-devices        disable all devices
 190   --enable-filter=NAME     enable filter NAME
 191   --disable-filter=NAME    disable filter NAME
 192   --disable-filters        disable all filters
 193
 194 External library support:
 195   --enable-avisynth        enable reading of AviSynth script files [no]
 196   --disable-bzlib          disable bzlib [autodetect]
 197   --enable-fontconfig      enable fontconfig
 198   --enable-frei0r          enable frei0r video filtering
 199   --enable-gnutls          enable gnutls [no]
 200   --disable-iconv          disable iconv [autodetect]
 201   --enable-ladspa          enable LADSPA audio filtering
 202   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 203   --enable-libass          enable libass subtitles rendering [no]
 204   --enable-libbluray       enable BluRay reading using libbluray [no]
 205   --enable-libbs2b         enable bs2b DSP library [no]
 206   --enable-libcaca         enable textual display using libcaca
 207   --enable-libcelt         enable CELT decoding via libcelt [no]
 208   --enable-libcdio         enable audio CD grabbing with libcdio
 209   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 210                            and libraw1394 [no]
 211   --enable-libfaac         enable AAC encoding via libfaac [no]
 212   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 213   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 214   --enable-libfreetype     enable libfreetype [no]
 215   --enable-libfribidi      enable libfribidi [no]
 216   --enable-libgme          enable Game Music Emu via libgme [no]
 217   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 218   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 219   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 220   --enable-libmodplug      enable ModPlug via libmodplug [no]
 221   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 222   --enable-libnut          enable NUT (de)muxing via libnut,
 223                            native (de)muxer exists [no]
 224   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 225   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 226   --enable-libopencv       enable video filtering via libopencv [no]
 227   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 228   --enable-libopus         enable Opus de/encoding via libopus [no]
 229   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 230   --enable-libquvi         enable quvi input via libquvi [no]
 231   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 232   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 233   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 234   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 235   --enable-libsoxr         enable Include libsoxr resampling [no]
 236   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 237   --enable-libssh          enable SFTP protocol via libssh [no]
 238   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 239   --enable-libtheora       enable Theora encoding via libtheora [no]
 240   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 241   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 242   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 243   --enable-libvidstab      enable video stabilization using vid.stab [no]
 244   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 245   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 246   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 247                            native implementation exists [no]
 248   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 249   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 250   --enable-libwebp         enable WebP encoding via libwebp [no]
 251   --enable-libx264         enable H.264 encoding via x264 [no]
 252   --enable-libx265         enable HEVC encoding via x265 [no]
 253   --enable-libxavs         enable AVS encoding via xavs [no]
 254   --enable-libxcb          enable X11 grabbing using XCB [auto]
 255   --enable-libxcb-shm      enable X11 grabbing shm communication [auto]
 256   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [auto]
 257   --enable-libxvid         enable Xvid encoding via xvidcore,
 258                            native MPEG-4/Xvid encoder exists [no]
 259   --enable-libzmq          enable message passing via libzmq [no]
 260   --enable-libzvbi         enable teletext support via libzvbi [no]
 261   --disable-lzma           disable lzma [autodetect]
 262   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
 263   --enable-openal          enable OpenAL 1.1 capture support [no]
 264   --enable-opencl          enable OpenCL code
 265   --enable-opengl          enable OpenGL rendering [no]
 266   --enable-openssl         enable openssl [no]
 267   --disable-sdl            disable sdl [autodetect]
 268   --enable-x11grab         enable X11 grabbing (legacy) [no]
 269   --disable-xlib           disable xlib [autodetect]
 270   --disable-zlib           disable zlib [autodetect]
 271
 272 Toolchain options:
 273   --arch=ARCH              select architecture [$arch]
 274   --cpu=CPU                select the minimum required CPU (affects
 275                            instruction selection, may crash on older CPUs)
 276   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 277   --progs-suffix=SUFFIX    program name suffix []
 278   --enable-cross-compile   assume a cross-compiler is used
 279   --sysroot=PATH           root of cross-build tree
 280   --sysinclude=PATH        location of cross-build system headers
 281   --target-os=OS           compiler targets OS [$target_os]
 282   --target-exec=CMD        command to run executables on target
 283   --target-path=DIR        path to view of build directory on target
 284   --target-samples=DIR     path to samples directory on target
 285   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 286   --toolchain=NAME         set tool defaults according to NAME
 287   --nm=NM                  use nm tool NM [$nm_default]
 288   --ar=AR                  use archive tool AR [$ar_default]
 289   --as=AS                  use assembler AS [$as_default]
 290   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 291   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 292   --cc=CC                  use C compiler CC [$cc_default]
 293   --cxx=CXX                use C compiler CXX [$cxx_default]
 294   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 295   --ld=LD                  use linker LD [$ld_default]
 296   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 297   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 298   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 299   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 300   --host-cc=HOSTCC         use host C compiler HOSTCC
 301   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 302   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 303   --host-ld=HOSTLD         use host linker HOSTLD
 304   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 305   --host-libs=HLIBS        use libs HLIBS when linking for host
 306   --host-os=OS             compiler host OS [$target_os]
 307   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 308   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 309   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 310   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 311   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 312   --extra-version=STRING   version string suffix []
 313   --optflags=OPTFLAGS      override optimization-related compiler flags
 314   --build-suffix=SUFFIX    library name suffix []
 315   --enable-pic             build position-independent code
 316   --enable-thumb           compile for Thumb instruction set
 317   --enable-lto             use link-time optimization
 318
 319 Advanced options (experts only):
 320   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 321   --disable-symver         disable symbol versioning
 322   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 323   --disable-safe-bitstream-reader
 324                            disable buffer boundary checking in bitreaders
 325                            (faster, but may crash)
 326   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 327   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 328
 329 Optimization options (experts only):
 330   --disable-asm            disable all assembly optimizations
 331   --disable-altivec        disable AltiVec optimizations
 332   --disable-amd3dnow       disable 3DNow! optimizations
 333   --disable-amd3dnowext    disable 3DNow! extended optimizations
 334   --disable-mmx            disable MMX optimizations
 335   --disable-mmxext         disable MMXEXT optimizations
 336   --disable-sse            disable SSE optimizations
 337   --disable-sse2           disable SSE2 optimizations
 338   --disable-sse3           disable SSE3 optimizations
 339   --disable-ssse3          disable SSSE3 optimizations
 340   --disable-sse4           disable SSE4 optimizations
 341   --disable-sse42          disable SSE4.2 optimizations
 342   --disable-avx            disable AVX optimizations
 343   --disable-xop            disable XOP optimizations
 344   --disable-fma3           disable FMA3 optimizations
 345   --disable-fma4           disable FMA4 optimizations
 346   --disable-avx2           disable AVX2 optimizations
 347   --disable-armv5te        disable armv5te optimizations
 348   --disable-armv6          disable armv6 optimizations
 349   --disable-armv6t2        disable armv6t2 optimizations
 350   --disable-vfp            disable VFP optimizations
 351   --disable-neon           disable NEON optimizations
 352   --disable-inline-asm     disable use of inline assembly
 353   --disable-yasm           disable use of nasm/yasm assembly
 354   --disable-mips32r2       disable MIPS32R2 optimizations
 355   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 356   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 357   --disable-mipsfpu        disable floating point MIPS optimizations
 358   --disable-fast-unaligned consider unaligned accesses slow
 359
 360 Developer options (useful when working on FFmpeg itself):
 361   --disable-debug          disable debugging symbols
 362   --enable-debug=LEVEL     set the debug level [$debuglevel]
 363   --disable-optimizations  disable compiler optimizations
 364   --enable-extra-warnings  enable more compiler warnings
 365   --disable-stripping      disable stripping of executables and shared libraries
 366   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 367                            2 causes a slowdown at runtime.
 368   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 369   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 370                            leaks and errors, using the specified valgrind binary.
 371                            Cannot be combined with --target-exec
 372   --enable-ftrapv          Trap arithmetic overflows
 373   --samples=PATH           location of test samples for FATE, if not set use
 374                            \$FATE_SAMPLES at make invocation time.
 375   --enable-neon-clobber-test check NEON registers for clobbering (should be
 376                            used only for debugging purposes)
 377   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 378                            should be used only for debugging purposes)
 379   --enable-random          randomly enable/disable components
 380   --disable-random
 381   --enable-random=LIST     randomly enable/disable specific components or
 382   --disable-random=LIST    component groups. LIST is a comma-separated list
 383                            of NAME[:PROB] entries where NAME is a component
 384                            (group) and PROB the probability associated with
 385                            NAME (default 0.5).
 386   --random-seed=VALUE      seed value for --enable/disable-random
 387
 388 NOTE: Object files are built at the place where configure is launched.
 389 EOF
 390   exit 0
 391 }
 392
 393 quotes='""'
 394
 395 log(){
 396     echo "$@" >> $logfile
 397 }
 398
 399 log_file(){
 400     log BEGIN $1
 401     pr -n -t $1 >> $logfile
 402     log END $1
 403 }
 404
 405 echolog(){
 406     log "$@"
 407     echo "$@"
 408 }
 409
 410 warn(){
 411     log "WARNING: $*"
 412     WARNINGS="${WARNINGS}WARNING: $*\n"
 413 }
 414
 415 die(){
 416     echolog "$@"
 417     cat <<EOF
 418
 419 If you think configure made a mistake, make sure you are using the latest
 420 version from Git.  If the latest version fails, report the problem to the
 421 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 422 EOF
 423     if disabled logging; then
 424         cat <<EOF
 425 Rerun configure with logging enabled (do not use --disable-logging), and
 426 include the log this produces with your report.
 427 EOF
 428     else
 429         cat <<EOF
 430 Include the log file "$logfile" produced by configure as this will help
 431 solve the problem.
 432 EOF
 433     fi
 434     exit 1
 435 }
 436
 437 # Avoid locale weirdness, besides we really just want to translate ASCII.
 438 toupper(){
 439     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 440 }
 441
 442 tolower(){
 443     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 444 }
 445
 446 c_escape(){
 447     echo "$*" | sed 's/["\\]/\\\0/g'
 448 }
 449
 450 sh_quote(){
 451     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 452     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 453     echo "$v"
 454 }
 455
 456 cleanws(){
 457     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 458 }
 459
 460 filter(){
 461     pat=$1
 462     shift
 463     for v; do
 464         eval "case $v in $pat) echo $v ;; esac"
 465     done
 466 }
 467
 468 filter_out(){
 469     pat=$1
 470     shift
 471     for v; do
 472         eval "case $v in $pat) ;; *) echo $v ;; esac"
 473     done
 474 }
 475
 476 map(){
 477     m=$1
 478     shift
 479     for v; do eval $m; done
 480 }
 481
 482 add_suffix(){
 483     suffix=$1
 484     shift
 485     for v; do echo ${v}${suffix}; done
 486 }
 487
 488 set_all(){
 489     value=$1
 490     shift
 491     for var in $*; do
 492         eval $var=$value
 493     done
 494 }
 495
 496 set_weak(){
 497     value=$1
 498     shift
 499     for var; do
 500         eval : \${$var:=$value}
 501     done
 502 }
 503
 504 sanitize_var_name(){
 505     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 506 }
 507
 508 set_safe(){
 509     var=$1
 510     shift
 511     eval $(sanitize_var_name "$var")='$*'
 512 }
 513
 514 get_safe(){
 515     eval echo \$$(sanitize_var_name "$1")
 516 }
 517
 518 pushvar(){
 519     for pvar in $*; do
 520         eval level=\${${pvar}_level:=0}
 521         eval ${pvar}_${level}="\$$pvar"
 522         eval ${pvar}_level=$(($level+1))
 523     done
 524 }
 525
 526 popvar(){
 527     for pvar in $*; do
 528         eval level=\${${pvar}_level:-0}
 529         test $level = 0 && continue
 530         eval level=$(($level-1))
 531         eval $pvar="\${${pvar}_${level}}"
 532         eval ${pvar}_level=$level
 533         eval unset ${pvar}_${level}
 534     done
 535 }
 536
 537 enable(){
 538     set_all yes $*
 539 }
 540
 541 disable(){
 542     set_all no $*
 543 }
 544
 545 enable_weak(){
 546     set_weak yes $*
 547 }
 548
 549 disable_weak(){
 550     set_weak no $*
 551 }
 552
 553 enable_safe(){
 554     for var; do
 555         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 556     done
 557 }
 558
 559 disable_safe(){
 560     for var; do
 561         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 562     done
 563 }
 564
 565 do_enable_deep(){
 566     for var; do
 567         enabled $var && continue
 568         eval sel="\$${var}_select"
 569         eval sgs="\$${var}_suggest"
 570         pushvar var sgs
 571         enable_deep $sel
 572         popvar sgs
 573         enable_deep_weak $sgs
 574         popvar var
 575     done
 576 }
 577
 578 enable_deep(){
 579     do_enable_deep $*
 580     enable $*
 581 }
 582
 583 enable_deep_weak(){
 584     for var; do
 585         disabled $var && continue
 586         pushvar var
 587         do_enable_deep $var
 588         popvar var
 589         enable_weak $var
 590     done
 591 }
 592
 593 enabled(){
 594     test "${1#!}" = "$1" && op== || op=!=
 595     eval test "x\$${1#!}" $op "xyes"
 596 }
 597
 598 disabled(){
 599     test "${1#!}" = "$1" && op== || op=!=
 600     eval test "x\$${1#!}" $op "xno"
 601 }
 602
 603 enabled_all(){
 604     for opt; do
 605         enabled $opt || return 1
 606     done
 607 }
 608
 609 disabled_all(){
 610     for opt; do
 611         disabled $opt || return 1
 612     done
 613 }
 614
 615 enabled_any(){
 616     for opt; do
 617         enabled $opt && return 0
 618     done
 619 }
 620
 621 disabled_any(){
 622     for opt; do
 623         disabled $opt && return 0
 624     done
 625     return 1
 626 }
 627
 628 set_default(){
 629     for opt; do
 630         eval : \${$opt:=\$${opt}_default}
 631     done
 632 }
 633
 634 is_in(){
 635     value=$1
 636     shift
 637     for var in $*; do
 638         [ $var = $value ] && return 0
 639     done
 640     return 1
 641 }
 642
 643 do_check_deps(){
 644     for cfg; do
 645         cfg="${cfg#!}"
 646         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 647         disabled ${cfg}_checking && continue
 648         enable ${cfg}_checking
 649         append allopts $cfg
 650
 651         eval dep_all="\$${cfg}_deps"
 652         eval dep_any="\$${cfg}_deps_any"
 653         eval dep_sel="\$${cfg}_select"
 654         eval dep_sgs="\$${cfg}_suggest"
 655         eval dep_ifa="\$${cfg}_if"
 656         eval dep_ifn="\$${cfg}_if_any"
 657
 658         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 659         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 660         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 661
 662         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 663         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 664         enabled_all  $dep_all || disable $cfg
 665         enabled_any  $dep_any || disable $cfg
 666         disabled_any $dep_sel && disable $cfg
 667
 668         if enabled $cfg; then
 669             enable_deep $dep_sel
 670             enable_deep_weak $dep_sgs
 671         fi
 672
 673         disable ${cfg}_checking
 674     done
 675 }
 676
 677 check_deps(){
 678     unset allopts
 679
 680     do_check_deps "$@"
 681
 682     for cfg in $allopts; do
 683         enabled $cfg || continue
 684         eval dep_extralibs="\$${cfg}_extralibs"
 685         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 686     done
 687 }
 688
 689 print_config(){
 690     pfx=$1
 691     files=$2
 692     shift 2
 693     map 'eval echo "$v \${$v:-no}"' "$@" |
 694     awk "BEGIN { split(\"$files\", files) }
 695         {
 696             c = \"$pfx\" toupper(\$1);
 697             v = \$2;
 698             sub(/yes/, 1, v);
 699             sub(/no/,  0, v);
 700             for (f in files) {
 701                 file = files[f];
 702                 if (file ~ /\\.h\$/) {
 703                     printf(\"#define %s %d\\n\", c, v) >>file;
 704                 } else if (file ~ /\\.asm\$/) {
 705                     printf(\"%%define %s %d\\n\", c, v) >>file;
 706                 } else if (file ~ /\\.mak\$/) {
 707                     n = -v ? \"\" : \"!\";
 708                     printf(\"%s%s=yes\\n\", n, c) >>file;
 709                 } else if (file ~ /\\.texi\$/) {
 710                     pre = -v ? \"\" : \"@c \";
 711                     yesno = \$2;
 712                     c2 = tolower(c);
 713                     gsub(/_/, \"-\", c2);
 714                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 715                 }
 716             }
 717         }"
 718 }
 719
 720 print_enabled(){
 721     suf=$1
 722     shift
 723     for v; do
 724         enabled $v && printf "%s\n" ${v%$suf};
 725     done
 726 }
 727
 728 append(){
 729     var=$1
 730     shift
 731     eval "$var=\"\$$var $*\""
 732 }
 733
 734 prepend(){
 735     var=$1
 736     shift
 737     eval "$var=\"$* \$$var\""
 738 }
 739
 740 unique(){
 741     var=$1
 742     uniq_list=""
 743     for tok in $(eval echo \$$var); do
 744         uniq_list="$(filter_out $tok $uniq_list) $tok"
 745     done
 746     eval "$var=\"${uniq_list}\""
 747 }
 748
 749 add_cppflags(){
 750     append CPPFLAGS "$@"
 751 }
 752
 753 add_cflags(){
 754     append CFLAGS $($cflags_filter "$@")
 755 }
 756
 757 add_cxxflags(){
 758     append CXXFLAGS $($cflags_filter "$@")
 759 }
 760
 761 add_asflags(){
 762     append ASFLAGS $($asflags_filter "$@")
 763 }
 764
 765 add_ldflags(){
 766     append LDFLAGS $($ldflags_filter "$@")
 767 }
 768
 769 add_ldexeflags(){
 770     append LDEXEFLAGS $($ldflags_filter "$@")
 771 }
 772
 773 add_stripflags(){
 774     append ASMSTRIPFLAGS "$@"
 775 }
 776
 777 add_extralibs(){
 778     prepend extralibs $($ldflags_filter "$@")
 779 }
 780
 781 add_host_cppflags(){
 782     append host_cppflags "$@"
 783 }
 784
 785 add_host_cflags(){
 786     append host_cflags $($host_cflags_filter "$@")
 787 }
 788
 789 add_host_ldflags(){
 790     append host_ldflags $($host_ldflags_filter "$@")
 791 }
 792
 793 add_compat(){
 794     append compat_objs $1
 795     shift
 796     map 'add_cppflags -D$v' "$@"
 797 }
 798
 799 check_cmd(){
 800     log "$@"
 801     "$@" >> $logfile 2>&1
 802 }
 803
 804 check_stat(){
 805     log check_stat "$@"
 806     stat "$1" >> $logfile 2>&1
 807 }
 808
 809 cc_o(){
 810     eval printf '%s\\n' $CC_O
 811 }
 812
 813 cc_e(){
 814     eval printf '%s\\n' $CC_E
 815 }
 816
 817 check_cc(){
 818     log check_cc "$@"
 819     cat > $TMPC
 820     log_file $TMPC
 821     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 822 }
 823
 824 check_cxx(){
 825     log check_cxx "$@"
 826     cat > $TMPCPP
 827     log_file $TMPCPP
 828     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 829 }
 830
 831 check_oc(){
 832     log check_oc "$@"
 833     cat > $TMPM
 834     log_file $TMPM
 835     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 836 }
 837
 838 check_cpp(){
 839     log check_cpp "$@"
 840     cat > $TMPC
 841     log_file $TMPC
 842     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 843 }
 844
 845 as_o(){
 846     eval printf '%s\\n' $AS_O
 847 }
 848
 849 check_as(){
 850     log check_as "$@"
 851     cat > $TMPS
 852     log_file $TMPS
 853     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 854 }
 855
 856 check_inline_asm(){
 857     log check_inline_asm "$@"
 858     name="$1"
 859     code="$2"
 860     shift 2
 861     disable $name
 862     check_cc "$@" <<EOF && enable $name
 863 void foo(void){ __asm__ volatile($code); }
 864 EOF
 865 }
 866
 867 check_insn(){
 868     log check_insn "$@"
 869     check_inline_asm ${1}_inline "\"$2\""
 870     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 871 }
 872
 873 check_yasm(){
 874     log check_yasm "$@"
 875     echo "$1" > $TMPS
 876     log_file $TMPS
 877     shift 1
 878     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 879 }
 880
 881 ld_o(){
 882     eval printf '%s\\n' $LD_O
 883 }
 884
 885 check_ld(){
 886     log check_ld "$@"
 887     type=$1
 888     shift 1
 889     flags=$(filter_out '-l*|*.so' $@)
 890     libs=$(filter '-l*|*.so' $@)
 891     check_$type $($cflags_filter $flags) || return
 892     flags=$($ldflags_filter $flags)
 893     libs=$($ldflags_filter $libs)
 894     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 895 }
 896
 897 print_include(){
 898     hdr=$1
 899     test "${hdr%.h}" = "${hdr}" &&
 900         echo "#include $hdr"    ||
 901         echo "#include <$hdr>"
 902 }
 903
 904 check_code(){
 905     log check_code "$@"
 906     check=$1
 907     headers=$2
 908     code=$3
 909     shift 3
 910     {
 911         for hdr in $headers; do
 912             print_include $hdr
 913         done
 914         echo "int main(void) { $code; return 0; }"
 915     } | check_$check "$@"
 916 }
 917
 918 check_cppflags(){
 919     log check_cppflags "$@"
 920     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 921 int x;
 922 EOF
 923 }
 924
 925 test_cflags(){
 926     log test_cflags "$@"
 927     set -- $($cflags_filter "$@")
 928     check_cc "$@" <<EOF
 929 int x;
 930 EOF
 931 }
 932
 933 check_cflags(){
 934     log check_cflags "$@"
 935     test_cflags "$@" && add_cflags "$@"
 936 }
 937
 938 check_cxxflags(){
 939     log check_cxxflags "$@"
 940     set -- $($cflags_filter "$@")
 941     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 942 int x;
 943 EOF
 944 }
 945
 946 test_ldflags(){
 947     log test_ldflags "$@"
 948     check_ld "cc" "$@" <<EOF
 949 int main(void){ return 0; }
 950 EOF
 951 }
 952
 953 check_ldflags(){
 954     log check_ldflags "$@"
 955     test_ldflags "$@" && add_ldflags "$@"
 956 }
 957
 958 test_stripflags(){
 959     log test_stripflags "$@"
 960     # call check_cc to get a fresh TMPO
 961     check_cc <<EOF
 962 int main(void) { return 0; }
 963 EOF
 964     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 965 }
 966
 967 check_stripflags(){
 968     log check_stripflags "$@"
 969     test_stripflags "$@" && add_stripflags "$@"
 970 }
 971
 972 check_header(){
 973     log check_header "$@"
 974     header=$1
 975     shift
 976     disable_safe $header
 977     check_cpp "$@" <<EOF && enable_safe $header
 978 #include <$header>
 979 int x;
 980 EOF
 981 }
 982
 983 check_header_oc(){
 984     log check_header_oc "$@"
 985     rm -f -- "$TMPO"
 986     header=$1
 987     shift
 988     disable_safe $header
 989     {
 990        echo "#include <$header>"
 991        echo "int main(void) { return 0; }"
 992     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 993 }
 994
 995 check_func(){
 996     log check_func "$@"
 997     func=$1
 998     shift
 999     disable $func
1000     check_ld "cc" "$@" <<EOF && enable $func
1001 extern int $func();
1002 int main(void){ $func(); }
1003 EOF
1004 }
1005
1006 check_mathfunc(){
1007     log check_mathfunc "$@"
1008     func=$1
1009     narg=$2
1010     shift 2
1011     test $narg = 2 && args="f, g" || args="f"
1012     disable $func
1013     check_ld "cc" "$@" <<EOF && enable $func
1014 #include <math.h>
1015 float foo(float f, float g) { return $func($args); }
1016 int main(void){ return (int) foo; }
1017 EOF
1018 }
1019
1020 check_func_headers(){
1021     log check_func_headers "$@"
1022     headers=$1
1023     funcs=$2
1024     shift 2
1025     {
1026         for hdr in $headers; do
1027             print_include $hdr
1028         done
1029         for func in $funcs; do
1030             echo "long check_$func(void) { return (long) $func; }"
1031         done
1032         echo "int main(void) { return 0; }"
1033     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1034 }
1035
1036 check_class_headers_cpp(){
1037     log check_class_headers_cpp "$@"
1038     headers=$1
1039     classes=$2
1040     shift 2
1041     {
1042         for hdr in $headers; do
1043             echo "#include <$hdr>"
1044         done
1045         echo "int main(void) { "
1046         i=1
1047         for class in $classes; do
1048             echo "$class obj$i;"
1049             i=$(expr $i + 1)
1050         done
1051         echo "return 0; }"
1052     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1053 }
1054
1055 check_cpp_condition(){
1056     log check_cpp_condition "$@"
1057     header=$1
1058     condition=$2
1059     shift 2
1060     check_cpp "$@" <<EOF
1061 #include <$header>
1062 #if !($condition)
1063 #error "unsatisfied condition: $condition"
1064 #endif
1065 EOF
1066 }
1067
1068 check_lib(){
1069     log check_lib "$@"
1070     header="$1"
1071     func="$2"
1072     shift 2
1073     check_header $header && check_func $func "$@" && add_extralibs "$@"
1074 }
1075
1076 check_lib2(){
1077     log check_lib2 "$@"
1078     headers="$1"
1079     funcs="$2"
1080     shift 2
1081     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1082 }
1083
1084 check_lib_cpp(){
1085     log check_lib_cpp "$@"
1086     headers="$1"
1087     classes="$2"
1088     shift 2
1089     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1090 }
1091
1092 check_pkg_config(){
1093     log check_pkg_config "$@"
1094     pkgandversion="$1"
1095     pkg="${1%% *}"
1096     headers="$2"
1097     funcs="$3"
1098     shift 3
1099     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1100     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1101     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1102     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1103         set_safe ${pkg}_cflags $pkg_cflags   &&
1104         set_safe ${pkg}_libs   $pkg_libs
1105 }
1106
1107 check_exec(){
1108     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1109 }
1110
1111 check_exec_crash(){
1112     code=$(cat)
1113
1114     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1115     # are safe but may not be available everywhere.  Thus we use
1116     # raise(SIGTERM) instead.  The check is run in a subshell so we
1117     # can redirect the "Terminated" message from the shell.  SIGBUS
1118     # is not defined by standard C so it is used conditionally.
1119
1120     (check_exec "$@") >> $logfile 2>&1 <<EOF
1121 #include <signal.h>
1122 static void sighandler(int sig){
1123     raise(SIGTERM);
1124 }
1125 int foo(void){
1126     $code
1127 }
1128 int (*func_ptr)(void) = foo;
1129 int main(void){
1130     signal(SIGILL, sighandler);
1131     signal(SIGFPE, sighandler);
1132     signal(SIGSEGV, sighandler);
1133 #ifdef SIGBUS
1134     signal(SIGBUS, sighandler);
1135 #endif
1136     return func_ptr();
1137 }
1138 EOF
1139 }
1140
1141 check_type(){
1142     log check_type "$@"
1143     headers=$1
1144     type=$2
1145     shift 2
1146     disable_safe "$type"
1147     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1148 }
1149
1150 check_struct(){
1151     log check_struct "$@"
1152     headers=$1
1153     struct=$2
1154     member=$3
1155     shift 3
1156     disable_safe "${struct}_${member}"
1157     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1158         enable_safe "${struct}_${member}"
1159 }
1160
1161 check_builtin(){
1162     log check_builtin "$@"
1163     name=$1
1164     headers=$2
1165     builtin=$3
1166     shift 3
1167     disable "$name"
1168     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1169 }
1170
1171 check_compile_assert(){
1172     log check_compile_assert "$@"
1173     name=$1
1174     headers=$2
1175     condition=$3
1176     shift 3
1177     disable "$name"
1178     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1179 }
1180
1181 require(){
1182     name="$1"
1183     header="$2"
1184     func="$3"
1185     shift 3
1186     check_lib $header $func "$@" || die "ERROR: $name not found"
1187 }
1188
1189 require2(){
1190     name="$1"
1191     headers="$2"
1192     func="$3"
1193     shift 3
1194     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1195 }
1196
1197 require_cpp(){
1198     name="$1"
1199     headers="$2"
1200     classes="$3"
1201     shift 3
1202     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1203 }
1204
1205 require_pkg_config(){
1206     pkg="$1"
1207     check_pkg_config "$@" || die "ERROR: $pkg not found"
1208     add_cflags    $(get_safe ${pkg}_cflags)
1209     add_extralibs $(get_safe ${pkg}_libs)
1210 }
1211
1212 require_libfreetype(){
1213     log require_libfreetype "$@"
1214     pkg="freetype2"
1215     check_cmd $pkg_config --exists --print-errors $pkg \
1216       || die "ERROR: $pkg not found"
1217     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1218     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1219     {
1220         echo "#include <ft2build.h>"
1221         echo "#include FT_FREETYPE_H"
1222         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1223         echo "int main(void) { return 0; }"
1224     } | check_ld "cc" $pkg_cflags $pkg_libs \
1225       && set_safe ${pkg}_cflags $pkg_cflags \
1226       && set_safe ${pkg}_libs   $pkg_libs \
1227       || die "ERROR: $pkg not found"
1228     add_cflags    $(get_safe ${pkg}_cflags)
1229     add_extralibs $(get_safe ${pkg}_libs)
1230 }
1231
1232 hostcc_e(){
1233     eval printf '%s\\n' $HOSTCC_E
1234 }
1235
1236 hostcc_o(){
1237     eval printf '%s\\n' $HOSTCC_O
1238 }
1239
1240 check_host_cc(){
1241     log check_host_cc "$@"
1242     cat > $TMPC
1243     log_file $TMPC
1244     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1245 }
1246
1247 check_host_cpp(){
1248     log check_host_cpp "$@"
1249     cat > $TMPC
1250     log_file $TMPC
1251     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1252 }
1253
1254 check_host_cppflags(){
1255     log check_host_cppflags "$@"
1256     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1257 int x;
1258 EOF
1259 }
1260
1261 check_host_cflags(){
1262     log check_host_cflags "$@"
1263     set -- $($host_cflags_filter "$@")
1264     check_host_cc "$@" <<EOF && append host_cflags "$@"
1265 int x;
1266 EOF
1267 }
1268
1269 check_host_cpp_condition(){
1270     log check_host_cpp_condition "$@"
1271     header=$1
1272     condition=$2
1273     shift 2
1274     check_host_cpp "$@" <<EOF
1275 #include <$header>
1276 #if !($condition)
1277 #error "unsatisfied condition: $condition"
1278 #endif
1279 EOF
1280 }
1281
1282 apply(){
1283     file=$1
1284     shift
1285     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1286 }
1287
1288 cp_if_changed(){
1289     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1290     mkdir -p "$(dirname $2)"
1291     $cp_f "$1" "$2"
1292 }
1293
1294 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1295 # system-dependent things.
1296
1297 COMPONENT_LIST="
1298     bsfs
1299     decoders
1300     demuxers
1301     encoders
1302     filters
1303     hwaccels
1304     indevs
1305     muxers
1306     outdevs
1307     parsers
1308     protocols
1309 "
1310
1311 EXAMPLE_LIST="
1312     avio_reading_example
1313     decoding_encoding_example
1314     demuxing_decoding_example
1315     extract_mvs_example
1316     filter_audio_example
1317     filtering_audio_example
1318     filtering_video_example
1319     metadata_example
1320     muxing_example
1321     remuxing_example
1322     resampling_audio_example
1323     scaling_video_example
1324     transcode_aac_example
1325     transcoding_example
1326 "
1327
1328 EXTERNAL_LIBRARY_LIST="
1329     avisynth
1330     bzlib
1331     crystalhd
1332     decklink
1333     frei0r
1334     gnutls
1335     iconv
1336     ladspa
1337     libaacplus
1338     libass
1339     libbluray
1340     libbs2b
1341     libcaca
1342     libcdio
1343     libcelt
1344     libdc1394
1345     libfaac
1346     libfdk_aac
1347     libflite
1348     libfontconfig
1349     libfreetype
1350     libfribidi
1351     libgme
1352     libgsm
1353     libiec61883
1354     libilbc
1355     libmodplug
1356     libmp3lame
1357     libnut
1358     libopencore_amrnb
1359     libopencore_amrwb
1360     libopencv
1361     libopenjpeg
1362     libopus
1363     libpulse
1364     libquvi
1365     librtmp
1366     libschroedinger
1367     libshine
1368     libsmbclient
1369     libsoxr
1370     libspeex
1371     libssh
1372     libstagefright_h264
1373     libtheora
1374     libtwolame
1375     libutvideo
1376     libv4l2
1377     libvidstab
1378     libvo_aacenc
1379     libvo_amrwbenc
1380     libvorbis
1381     libvpx
1382     libwavpack
1383     libwebp
1384     libx264
1385     libx265
1386     libxavs
1387     libxcb
1388     libxcb_shm
1389     libxcb_xfixes
1390     libxvid
1391     libzmq
1392     libzvbi
1393     lzma
1394     openal
1395     opencl
1396     opengl
1397     openssl
1398     sdl
1399     x11grab
1400     xlib
1401     zlib
1402 "
1403
1404 DOCUMENT_LIST="
1405     doc
1406     htmlpages
1407     manpages
1408     podpages
1409     txtpages
1410 "
1411
1412 FEATURE_LIST="
1413     ftrapv
1414     gray
1415     hardcoded_tables
1416     runtime_cpudetect
1417     safe_bitstream_reader
1418     shared
1419     small
1420     static
1421     swscale_alpha
1422 "
1423
1424 HWACCEL_LIST="
1425     dxva2
1426     vaapi
1427     vda
1428     vdpau
1429     xvmc
1430 "
1431
1432 LIBRARY_LIST="
1433     avcodec
1434     avdevice
1435     avfilter
1436     avformat
1437     avresample
1438     avutil
1439     postproc
1440     swresample
1441     swscale
1442 "
1443
1444 LICENSE_LIST="
1445     gpl
1446     nonfree
1447     version3
1448 "
1449
1450 PROGRAM_LIST="
1451     ffplay
1452     ffprobe
1453     ffserver
1454     ffmpeg
1455 "
1456
1457 SUBSYSTEM_LIST="
1458     dct
1459     dwt
1460     error_resilience
1461     faan
1462     fast_unaligned
1463     fft
1464     lsp
1465     lzo
1466     mdct
1467     pixelutils
1468     network
1469     rdft
1470 "
1471
1472 CONFIG_LIST="
1473     $COMPONENT_LIST
1474     $DOCUMENT_LIST
1475     $EXAMPLE_LIST
1476     $EXTERNAL_LIBRARY_LIST
1477     $FEATURE_LIST
1478     $HWACCEL_LIST
1479     $LICENSE_LIST
1480     $LIBRARY_LIST
1481     $PROGRAM_LIST
1482     $SUBSYSTEM_LIST
1483     fontconfig
1484     incompatible_libav_abi
1485     memalign_hack
1486     memory_poisoning
1487     neon_clobber_test
1488     pic
1489     pod2man
1490     raise_major
1491     thumb
1492     xmm_clobber_test
1493 "
1494
1495 THREADS_LIST="
1496     pthreads
1497     os2threads
1498     w32threads
1499 "
1500
1501 ATOMICS_LIST="
1502     atomics_gcc
1503     atomics_suncc
1504     atomics_win32
1505 "
1506
1507 ARCH_LIST="
1508     aarch64
1509     alpha
1510     arm
1511     avr32
1512     avr32_ap
1513     avr32_uc
1514     bfin
1515     ia64
1516     m68k
1517     mips
1518     mips64
1519     parisc
1520     ppc
1521     ppc64
1522     s390
1523     sh4
1524     sparc
1525     sparc64
1526     tilegx
1527     tilepro
1528     tomi
1529     x86
1530     x86_32
1531     x86_64
1532 "
1533
1534 ARCH_EXT_LIST_ARM="
1535     armv5te
1536     armv6
1537     armv6t2
1538     armv8
1539     neon
1540     vfp
1541     vfpv3
1542     setend
1543 "
1544
1545 ARCH_EXT_LIST_MIPS="
1546     mipsfpu
1547     mips32r2
1548     mipsdspr1
1549     mipsdspr2
1550 "
1551
1552 ARCH_EXT_LIST_X86_SIMD="
1553     amd3dnow
1554     amd3dnowext
1555     avx
1556     avx2
1557     fma3
1558     fma4
1559     mmx
1560     mmxext
1561     sse
1562     sse2
1563     sse3
1564     sse4
1565     sse42
1566     ssse3
1567     xop
1568 "
1569
1570 ARCH_EXT_LIST_PPC="
1571     altivec
1572     dcbzl
1573     ldbrx
1574     ppc4xx
1575     vsx
1576 "
1577
1578 ARCH_EXT_LIST_X86="
1579     $ARCH_EXT_LIST_X86_SIMD
1580     cpunop
1581     i686
1582 "
1583
1584 ARCH_EXT_LIST="
1585     $ARCH_EXT_LIST_ARM
1586     $ARCH_EXT_LIST_PPC
1587     $ARCH_EXT_LIST_X86
1588     $ARCH_EXT_LIST_MIPS
1589     loongson
1590 "
1591
1592 ARCH_FEATURES="
1593     aligned_stack
1594     fast_64bit
1595     fast_clz
1596     fast_cmov
1597     local_aligned_8
1598     local_aligned_16
1599     local_aligned_32
1600     simd_align_16
1601 "
1602
1603 BUILTIN_LIST="
1604     atomic_cas_ptr
1605     atomic_compare_exchange
1606     machine_rw_barrier
1607     MemoryBarrier
1608     mm_empty
1609     rdtsc
1610     sarestart
1611     sync_val_compare_and_swap
1612 "
1613 HAVE_LIST_CMDLINE="
1614     inline_asm
1615     symver
1616     yasm
1617 "
1618
1619 HAVE_LIST_PUB="
1620     bigendian
1621     fast_unaligned
1622     incompatible_libav_abi
1623 "
1624
1625 HEADERS_LIST="
1626     alsa_asoundlib_h
1627     altivec_h
1628     arpa_inet_h
1629     asm_types_h
1630     cdio_paranoia_h
1631     cdio_paranoia_paranoia_h
1632     CL_cl_h
1633     dev_bktr_ioctl_bt848_h
1634     dev_bktr_ioctl_meteor_h
1635     dev_ic_bt8xx_h
1636     dev_video_bktr_ioctl_bt848_h
1637     dev_video_meteor_ioctl_meteor_h
1638     direct_h
1639     dlfcn_h
1640     dxva_h
1641     ES2_gl_h
1642     gsm_h
1643     io_h
1644     mach_mach_time_h
1645     machine_ioctl_bt848_h
1646     machine_ioctl_meteor_h
1647     malloc_h
1648     openjpeg_1_5_openjpeg_h
1649     OpenGL_gl3_h
1650     poll_h
1651     sndio_h
1652     soundcard_h
1653     sys_mman_h
1654     sys_param_h
1655     sys_resource_h
1656     sys_select_h
1657     sys_soundcard_h
1658     sys_time_h
1659     sys_un_h
1660     sys_videoio_h
1661     termios_h
1662     udplite_h
1663     unistd_h
1664     windows_h
1665     winsock2_h
1666 "
1667
1668 INTRINSICS_LIST="
1669     intrinsics_neon
1670 "
1671
1672 MATH_FUNCS="
1673     atanf
1674     atan2f
1675     cbrt
1676     cbrtf
1677     cosf
1678     exp2
1679     exp2f
1680     expf
1681     isinf
1682     isnan
1683     ldexpf
1684     llrint
1685     llrintf
1686     log2
1687     log2f
1688     log10f
1689     lrint
1690     lrintf
1691     powf
1692     rint
1693     round
1694     roundf
1695     sinf
1696     trunc
1697     truncf
1698 "
1699
1700 SYSTEM_FUNCS="
1701     access
1702     aligned_malloc
1703     clock_gettime
1704     closesocket
1705     CommandLineToArgvW
1706     CoTaskMemFree
1707     CryptGenRandom
1708     dlopen
1709     fcntl
1710     flt_lim
1711     fork
1712     getaddrinfo
1713     gethrtime
1714     getopt
1715     GetProcessAffinityMask
1716     GetProcessMemoryInfo
1717     GetProcessTimes
1718     getrusage
1719     getservbyport
1720     GetSystemTimeAsFileTime
1721     gettimeofday
1722     glob
1723     glXGetProcAddress
1724     gmtime_r
1725     inet_aton
1726     isatty
1727     jack_port_get_latency_range
1728     kbhit
1729     localtime_r
1730     lzo1x_999_compress
1731     mach_absolute_time
1732     MapViewOfFile
1733     memalign
1734     mkstemp
1735     mmap
1736     mprotect
1737     nanosleep
1738     PeekNamedPipe
1739     posix_memalign
1740     pthread_cancel
1741     sched_getaffinity
1742     SetConsoleTextAttribute
1743     setmode
1744     setrlimit
1745     Sleep
1746     strerror_r
1747     sysconf
1748     sysctl
1749     usleep
1750     VirtualAlloc
1751     wglGetProcAddress
1752 "
1753
1754 TOOLCHAIN_FEATURES="
1755     as_dn_directive
1756     as_func
1757     asm_mod_q
1758     attribute_may_alias
1759     attribute_packed
1760     ebp_available
1761     ebx_available
1762     gnu_as
1763     gnu_windres
1764     ibm_asm
1765     inline_asm_labels
1766     inline_asm_nonlocal_labels
1767     inline_asm_direct_symbol_refs
1768     pragma_deprecated
1769     rsync_contimeout
1770     symver_asm_label
1771     symver_gnu_asm
1772     vfp_args
1773     xform_asm
1774     xmm_clobbers
1775 "
1776
1777 TYPES_LIST="
1778     CONDITION_VARIABLE_Ptr
1779     socklen_t
1780     struct_addrinfo
1781     struct_group_source_req
1782     struct_ip_mreq_source
1783     struct_ipv6_mreq
1784     struct_pollfd
1785     struct_rusage_ru_maxrss
1786     struct_sctp_event_subscribe
1787     struct_sockaddr_in6
1788     struct_sockaddr_sa_len
1789     struct_sockaddr_storage
1790     struct_stat_st_mtim_tv_nsec
1791     struct_v4l2_frmivalenum_discrete
1792 "
1793
1794 HAVE_LIST="
1795     $ARCH_EXT_LIST
1796     $(add_suffix _external $ARCH_EXT_LIST)
1797     $(add_suffix _inline   $ARCH_EXT_LIST)
1798     $ARCH_FEATURES
1799     $ATOMICS_LIST
1800     $BUILTIN_LIST
1801     $HAVE_LIST_CMDLINE
1802     $HAVE_LIST_PUB
1803     $HEADERS_LIST
1804     $INTRINSICS_LIST
1805     $MATH_FUNCS
1806     $SYSTEM_FUNCS
1807     $THREADS_LIST
1808     $TOOLCHAIN_FEATURES
1809     $TYPES_LIST
1810     atomics_native
1811     dos_paths
1812     dxva2api_cobj
1813     dxva2_lib
1814     libc_msvcrt
1815     libdc1394_1
1816     libdc1394_2
1817     makeinfo
1818     makeinfo_html
1819     perl
1820     pod2man
1821     sdl
1822     texi2html
1823     threads
1824     vdpau_x11
1825     xlib
1826 "
1827
1828 # options emitted with CONFIG_ prefix but not available on the command line
1829 CONFIG_EXTRA="
1830     aandcttables
1831     ac3dsp
1832     audio_frame_queue
1833     audiodsp
1834     blockdsp
1835     bswapdsp
1836     cabac
1837     dvprofile
1838     exif
1839     faandct
1840     faanidct
1841     fdctdsp
1842     frame_thread_encoder
1843     gcrypt
1844     golomb
1845     gplv3
1846     h263dsp
1847     h264chroma
1848     h264dsp
1849     h264pred
1850     h264qpel
1851     hpeldsp
1852     huffman
1853     huffyuvdsp
1854     huffyuvencdsp
1855     idctdsp
1856     iirfilter
1857     intrax8
1858     lgplv3
1859     llauddsp
1860     llviddsp
1861     lpc
1862     me_cmp
1863     mpeg_er
1864     mpegaudio
1865     mpegaudiodsp
1866     mpegvideo
1867     mpegvideoenc
1868     nettle
1869     pixblockdsp
1870     qpeldsp
1871     rangecoder
1872     riffdec
1873     riffenc
1874     rtpdec
1875     rtpenc_chain
1876     sinewin
1877     startcode
1878     tpeldsp
1879     videodsp
1880     vp3dsp
1881     wma_freqs
1882 "
1883
1884 CMDLINE_SELECT="
1885     $ARCH_EXT_LIST
1886     $CONFIG_LIST
1887     $HAVE_LIST_CMDLINE
1888     $THREADS_LIST
1889     asm
1890     cross_compile
1891     debug
1892     extra_warnings
1893     logging
1894     lto
1895     optimizations
1896     rpath
1897     stripping
1898 "
1899
1900 PATHS_LIST="
1901     bindir
1902     datadir
1903     docdir
1904     incdir
1905     libdir
1906     mandir
1907     prefix
1908     shlibdir
1909 "
1910
1911 CMDLINE_SET="
1912     $PATHS_LIST
1913     ar
1914     arch
1915     as
1916     assert_level
1917     build_suffix
1918     cc
1919     cpu
1920     cross_prefix
1921     cxx
1922     dep_cc
1923     doxygen
1924     extra_version
1925     gas
1926     host_cc
1927     host_cflags
1928     host_ld
1929     host_ldflags
1930     host_libs
1931     host_os
1932     install
1933     ld
1934     logfile
1935     malloc_prefix
1936     nm
1937     optflags
1938     pkg_config
1939     pkg_config_flags
1940     progs_suffix
1941     random_seed
1942     ranlib
1943     samples
1944     strip
1945     sws_max_filter_size
1946     sysinclude
1947     sysroot
1948     target_exec
1949     target_os
1950     target_path
1951     target_samples
1952     tempprefix
1953     toolchain
1954     valgrind
1955     yasmexe
1956 "
1957
1958 CMDLINE_APPEND="
1959     extra_cflags
1960     extra_cxxflags
1961     host_cppflags
1962 "
1963
1964 # code dependency declarations
1965
1966 # architecture extensions
1967
1968 armv5te_deps="arm"
1969 armv6_deps="arm"
1970 armv6t2_deps="arm"
1971 armv8_deps="aarch64"
1972 neon_deps_any="aarch64 arm"
1973 intrinsics_neon_deps="neon"
1974 vfp_deps_any="aarch64 arm"
1975 vfpv3_deps="vfp"
1976 setend_deps="arm"
1977
1978 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1979
1980 mipsfpu_deps="mips"
1981 mips32r2_deps="mips"
1982 mipsdspr1_deps="mips"
1983 mipsdspr2_deps="mips"
1984
1985 altivec_deps="ppc"
1986 ppc4xx_deps="ppc"
1987 vsx_deps="ppc"
1988
1989 cpunop_deps="i686"
1990 x86_64_select="i686"
1991 x86_64_suggest="fast_cmov"
1992
1993 amd3dnow_deps="mmx"
1994 amd3dnowext_deps="amd3dnow"
1995 i686_deps="x86"
1996 mmx_deps="x86"
1997 mmxext_deps="mmx"
1998 sse_deps="mmxext"
1999 sse2_deps="sse"
2000 sse3_deps="sse2"
2001 ssse3_deps="sse3"
2002 sse4_deps="ssse3"
2003 sse42_deps="sse4"
2004 avx_deps="sse42"
2005 xop_deps="avx"
2006 fma3_deps="avx"
2007 fma4_deps="avx"
2008 avx2_deps="avx"
2009
2010 mmx_external_deps="yasm"
2011 mmx_inline_deps="inline_asm"
2012 mmx_suggest="mmx_external mmx_inline"
2013
2014 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2015     eval dep=\$${ext}_deps
2016     eval ${ext}_external_deps='"${dep}_external"'
2017     eval ${ext}_inline_deps='"${dep}_inline"'
2018     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2019 done
2020
2021 aligned_stack_if_any="aarch64 ppc x86"
2022 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2023 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2024 fast_unaligned_if_any="aarch64 ppc x86"
2025 simd_align_16_if_any="altivec neon sse"
2026
2027 # system capabilities
2028
2029 symver_if_any="symver_asm_label symver_gnu_asm"
2030
2031 # threading support
2032 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2033 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2034 atomics_win32_if="MemoryBarrier"
2035 atomics_native_if_any="$ATOMICS_LIST"
2036 w32threads_deps="atomics_native"
2037 threads_if_any="$THREADS_LIST"
2038
2039 # subsystems
2040 dct_select="rdft"
2041 error_resilience_select="me_cmp"
2042 faandct_deps="faan fdctdsp"
2043 faanidct_deps="faan idctdsp"
2044 frame_thread_encoder_deps="encoders threads"
2045 intrax8_select="error_resilience"
2046 mdct_select="fft"
2047 rdft_select="fft"
2048 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2049 mpeg_er_select="error_resilience"
2050 mpegaudio_select="mpegaudiodsp"
2051 mpegaudiodsp_select="dct"
2052 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2053 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2054
2055 # decoders / encoders
2056 aac_decoder_select="mdct sinewin"
2057 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2058 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2059 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2060 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2061 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2062 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2063 aic_decoder_select="golomb idctdsp"
2064 alac_encoder_select="lpc"
2065 als_decoder_select="bswapdsp"
2066 amrnb_decoder_select="lsp"
2067 amrwb_decoder_select="lsp"
2068 amv_decoder_select="sp5x_decoder exif"
2069 amv_encoder_select="aandcttables mpegvideoenc"
2070 ape_decoder_select="bswapdsp llauddsp"
2071 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2072 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2073 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2074 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2075 atrac1_decoder_select="mdct sinewin"
2076 atrac3_decoder_select="mdct"
2077 atrac3p_decoder_select="mdct sinewin"
2078 avrn_decoder_select="exif"
2079 bink_decoder_select="blockdsp hpeldsp"
2080 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2081 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2082 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2083 cllc_decoder_select="bswapdsp"
2084 comfortnoise_encoder_select="lpc"
2085 cook_decoder_select="audiodsp mdct sinewin"
2086 cscd_decoder_select="lzo"
2087 cscd_decoder_suggest="zlib"
2088 dca_decoder_select="mdct"
2089 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2090 dnxhd_decoder_select="blockdsp idctdsp"
2091 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2092 dvvideo_decoder_select="dvprofile idctdsp"
2093 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2094 dxa_decoder_select="zlib"
2095 eac3_decoder_select="ac3_decoder"
2096 eac3_encoder_select="ac3_encoder"
2097 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2098 eatgq_decoder_select="aandcttables"
2099 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2100 exr_decoder_select="zlib"
2101 ffv1_decoder_select="golomb rangecoder"
2102 ffv1_encoder_select="rangecoder"
2103 ffvhuff_decoder_select="huffyuv_decoder"
2104 ffvhuff_encoder_select="huffyuv_encoder"
2105 fic_decoder_select="golomb"
2106 flac_decoder_select="golomb"
2107 flac_encoder_select="bswapdsp golomb lpc"
2108 flashsv_decoder_select="zlib"
2109 flashsv_encoder_select="zlib"
2110 flashsv2_encoder_select="zlib"
2111 flashsv2_decoder_select="zlib"
2112 flv_decoder_select="h263_decoder"
2113 flv_encoder_select="h263_encoder"
2114 fourxm_decoder_select="blockdsp bswapdsp"
2115 fraps_decoder_select="bswapdsp huffman"
2116 g2m_decoder_select="blockdsp idctdsp zlib"
2117 g729_decoder_select="audiodsp"
2118 h261_decoder_select="mpeg_er mpegvideo"
2119 h261_encoder_select="aandcttables mpegvideoenc"
2120 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2121 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2122 h263i_decoder_select="h263_decoder"
2123 h263p_encoder_select="h263_encoder"
2124 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2125 h264_decoder_suggest="error_resilience"
2126 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2127 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2128 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2129 iac_decoder_select="imc_decoder"
2130 imc_decoder_select="bswapdsp fft mdct sinewin"
2131 indeo3_decoder_select="hpeldsp"
2132 interplay_video_decoder_select="hpeldsp"
2133 jpegls_decoder_select="golomb mjpeg_decoder"
2134 jpegls_encoder_select="golomb"
2135 jv_decoder_select="blockdsp"
2136 lagarith_decoder_select="huffyuvdsp"
2137 ljpeg_encoder_select="aandcttables idctdsp"
2138 loco_decoder_select="golomb"
2139 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2140 metasound_decoder_select="lsp mdct sinewin"
2141 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2142 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2143 mjpeg_encoder_select="aandcttables mpegvideoenc"
2144 mjpegb_decoder_select="mjpeg_decoder"
2145 mlp_decoder_select="mlp_parser"
2146 motionpixels_decoder_select="bswapdsp"
2147 mp1_decoder_select="mpegaudio"
2148 mp1float_decoder_select="mpegaudio"
2149 mp2_decoder_select="mpegaudio"
2150 mp2float_decoder_select="mpegaudio"
2151 mp3_decoder_select="mpegaudio"
2152 mp3adu_decoder_select="mpegaudio"
2153 mp3adufloat_decoder_select="mpegaudio"
2154 mp3float_decoder_select="mpegaudio"
2155 mp3on4_decoder_select="mpegaudio"
2156 mp3on4float_decoder_select="mpegaudio"
2157 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2158 mpc8_decoder_select="mpegaudiodsp"
2159 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2160 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2161 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2162 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2163 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2164 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2165 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2166 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2167 mpeg4_encoder_select="h263_encoder"
2168 msmpeg4v1_decoder_select="h263_decoder"
2169 msmpeg4v2_decoder_select="h263_decoder"
2170 msmpeg4v2_encoder_select="h263_encoder"
2171 msmpeg4v3_decoder_select="h263_decoder"
2172 msmpeg4v3_encoder_select="h263_encoder"
2173 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2174 mxpeg_decoder_select="mjpeg_decoder"
2175 nellymoser_decoder_select="mdct sinewin"
2176 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2177 nuv_decoder_select="idctdsp lzo"
2178 on2avc_decoder_select="mdct"
2179 opus_decoder_deps="swresample"
2180 png_decoder_select="zlib"
2181 png_encoder_select="huffyuvencdsp zlib"
2182 prores_decoder_select="blockdsp idctdsp"
2183 prores_encoder_select="fdctdsp"
2184 qcelp_decoder_select="lsp"
2185 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2186 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2187 ra_144_decoder_select="audiodsp"
2188 ralf_decoder_select="golomb"
2189 rawvideo_decoder_select="bswapdsp"
2190 rtjpeg_decoder_select="me_cmp"
2191 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2192 rv10_encoder_select="h263_encoder"
2193 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2194 rv20_encoder_select="h263_encoder"
2195 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2196 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2197 shorten_decoder_select="golomb"
2198 sipr_decoder_select="lsp"
2199 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2200 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2201 sonic_decoder_select="golomb rangecoder"
2202 sonic_encoder_select="golomb rangecoder"
2203 sonic_ls_encoder_select="golomb rangecoder"
2204 sp5x_decoder_select="mjpeg_decoder"
2205 svq1_decoder_select="hpeldsp"
2206 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2207 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2208 svq3_decoder_suggest="zlib"
2209 tak_decoder_select="audiodsp"
2210 theora_decoder_select="vp3_decoder"
2211 thp_decoder_select="mjpeg_decoder"
2212 tiff_decoder_suggest="zlib lzma"
2213 tiff_encoder_suggest="zlib"
2214 truehd_decoder_select="mlp_parser"
2215 truemotion2_decoder_select="bswapdsp"
2216 truespeech_decoder_select="bswapdsp"
2217 tscc_decoder_select="zlib"
2218 twinvq_decoder_select="mdct lsp sinewin"
2219 utvideo_decoder_select="bswapdsp"
2220 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2221 vble_decoder_select="huffyuvdsp"
2222 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2223 vc1image_decoder_select="vc1_decoder"
2224 vorbis_decoder_select="mdct"
2225 vorbis_encoder_select="mdct"
2226 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2227 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2228 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2229 vp6a_decoder_select="vp6_decoder"
2230 vp6f_decoder_select="vp6_decoder"
2231 vp7_decoder_select="h264pred videodsp"
2232 vp8_decoder_select="h264pred videodsp"
2233 vp9_decoder_select="videodsp vp9_parser"
2234 webp_decoder_select="vp8_decoder"
2235 wmalossless_decoder_select="llauddsp"
2236 wmapro_decoder_select="mdct sinewin wma_freqs"
2237 wmav1_decoder_select="mdct sinewin wma_freqs"
2238 wmav1_encoder_select="mdct sinewin wma_freqs"
2239 wmav2_decoder_select="mdct sinewin wma_freqs"
2240 wmav2_encoder_select="mdct sinewin wma_freqs"
2241 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2242 wmv1_decoder_select="h263_decoder"
2243 wmv1_encoder_select="h263_encoder"
2244 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2245 wmv2_encoder_select="h263_encoder"
2246 wmv3_decoder_select="vc1_decoder"
2247 wmv3image_decoder_select="wmv3_decoder"
2248 zerocodec_decoder_select="zlib"
2249 zlib_decoder_select="zlib"
2250 zlib_encoder_select="zlib"
2251 zmbv_decoder_select="zlib"
2252 zmbv_encoder_select="zlib"
2253
2254 # hardware accelerators
2255 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2256 dxva2_deps="dxva2api_h"
2257 vaapi_deps="va_va_h"
2258 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2259 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2260 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2261 xvmc_deps="X11_extensions_XvMClib_h"
2262
2263 h263_vaapi_hwaccel_deps="vaapi"
2264 h263_vaapi_hwaccel_select="h263_decoder"
2265 h263_vdpau_hwaccel_deps="vdpau"
2266 h263_vdpau_hwaccel_select="h263_decoder"
2267 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2268 h264_dxva2_hwaccel_deps="dxva2"
2269 h264_dxva2_hwaccel_select="h264_decoder"
2270 h264_vaapi_hwaccel_deps="vaapi"
2271 h264_vaapi_hwaccel_select="h264_decoder"
2272 h264_vda_decoder_deps="vda"
2273 h264_vda_decoder_select="h264_decoder"
2274 h264_vda_hwaccel_deps="vda"
2275 h264_vda_hwaccel_select="h264_decoder"
2276 h264_vda_old_hwaccel_deps="vda"
2277 h264_vda_old_hwaccel_select="h264_decoder"
2278 h264_vdpau_decoder_deps="vdpau"
2279 h264_vdpau_decoder_select="h264_decoder"
2280 h264_vdpau_hwaccel_deps="vdpau"
2281 h264_vdpau_hwaccel_select="h264_decoder"
2282 mpeg_vdpau_decoder_deps="vdpau"
2283 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2284 mpeg_xvmc_hwaccel_deps="xvmc"
2285 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2286 mpeg1_vdpau_decoder_deps="vdpau"
2287 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2288 mpeg1_vdpau_hwaccel_deps="vdpau"
2289 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2290 mpeg1_xvmc_hwaccel_deps="xvmc"
2291 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2292 mpeg2_crystalhd_decoder_select="crystalhd"
2293 mpeg2_dxva2_hwaccel_deps="dxva2"
2294 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2295 mpeg2_vaapi_hwaccel_deps="vaapi"
2296 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2297 mpeg2_vdpau_hwaccel_deps="vdpau"
2298 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2299 mpeg2_xvmc_hwaccel_deps="xvmc"
2300 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2301 mpeg4_crystalhd_decoder_select="crystalhd"
2302 mpeg4_vaapi_hwaccel_deps="vaapi"
2303 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2304 mpeg4_vdpau_decoder_deps="vdpau"
2305 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2306 mpeg4_vdpau_hwaccel_deps="vdpau"
2307 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2308 msmpeg4_crystalhd_decoder_select="crystalhd"
2309 vc1_crystalhd_decoder_select="crystalhd"
2310 vc1_dxva2_hwaccel_deps="dxva2"
2311 vc1_dxva2_hwaccel_select="vc1_decoder"
2312 vc1_vaapi_hwaccel_deps="vaapi"
2313 vc1_vaapi_hwaccel_select="vc1_decoder"
2314 vc1_vdpau_decoder_deps="vdpau"
2315 vc1_vdpau_decoder_select="vc1_decoder"
2316 vc1_vdpau_hwaccel_deps="vdpau"
2317 vc1_vdpau_hwaccel_select="vc1_decoder"
2318 wmv3_crystalhd_decoder_select="crystalhd"
2319 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2320 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2321 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2322 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2323
2324 # parsers
2325 h264_parser_select="h264_decoder"
2326 hevc_parser_select="hevc_decoder"
2327 mpegvideo_parser_select="mpegvideo"
2328 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2329 vc1_parser_select="mpegvideo startcode vc1_decoder"
2330
2331 # external libraries
2332 libaacplus_encoder_deps="libaacplus"
2333 libcelt_decoder_deps="libcelt"
2334 libfaac_encoder_deps="libfaac"
2335 libfaac_encoder_select="audio_frame_queue"
2336 libfdk_aac_decoder_deps="libfdk_aac"
2337 libfdk_aac_encoder_deps="libfdk_aac"
2338 libfdk_aac_encoder_select="audio_frame_queue"
2339 libgme_demuxer_deps="libgme"
2340 libgsm_decoder_deps="libgsm"
2341 libgsm_encoder_deps="libgsm"
2342 libgsm_ms_decoder_deps="libgsm"
2343 libgsm_ms_encoder_deps="libgsm"
2344 libilbc_decoder_deps="libilbc"
2345 libilbc_encoder_deps="libilbc"
2346 libmodplug_demuxer_deps="libmodplug"
2347 libmp3lame_encoder_deps="libmp3lame"
2348 libmp3lame_encoder_select="audio_frame_queue"
2349 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2350 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2351 libopencore_amrnb_encoder_select="audio_frame_queue"
2352 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2353 libopenjpeg_decoder_deps="libopenjpeg"
2354 libopenjpeg_encoder_deps="libopenjpeg"
2355 libopus_decoder_deps="libopus"
2356 libopus_encoder_deps="libopus"
2357 libopus_encoder_select="audio_frame_queue"
2358 libquvi_demuxer_deps="libquvi"
2359 libschroedinger_decoder_deps="libschroedinger"
2360 libschroedinger_encoder_deps="libschroedinger"
2361 libshine_encoder_deps="libshine"
2362 libshine_encoder_select="audio_frame_queue"
2363 libspeex_decoder_deps="libspeex"
2364 libspeex_encoder_deps="libspeex"
2365 libspeex_encoder_select="audio_frame_queue"
2366 libstagefright_h264_decoder_deps="libstagefright_h264"
2367 libtheora_encoder_deps="libtheora"
2368 libtwolame_encoder_deps="libtwolame"
2369 libvo_aacenc_encoder_deps="libvo_aacenc"
2370 libvo_aacenc_encoder_select="audio_frame_queue"
2371 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2372 libvorbis_decoder_deps="libvorbis"
2373 libvorbis_encoder_deps="libvorbis"
2374 libvorbis_encoder_select="audio_frame_queue"
2375 libvpx_vp8_decoder_deps="libvpx"
2376 libvpx_vp8_encoder_deps="libvpx"
2377 libvpx_vp9_decoder_deps="libvpx"
2378 libvpx_vp9_encoder_deps="libvpx"
2379 libwavpack_encoder_deps="libwavpack"
2380 libwebp_encoder_deps="libwebp"
2381 libx264_encoder_deps="libx264"
2382 libx264rgb_encoder_deps="libx264"
2383 libx265_encoder_deps="libx265"
2384 libxavs_encoder_deps="libxavs"
2385 libxvid_encoder_deps="libxvid"
2386 libutvideo_decoder_deps="libutvideo"
2387 libutvideo_encoder_deps="libutvideo"
2388 libzvbi_teletext_decoder_deps="libzvbi"
2389
2390 # demuxers / muxers
2391 ac3_demuxer_select="ac3_parser"
2392 asf_demuxer_select="riffdec"
2393 asf_muxer_select="riffenc"
2394 asf_stream_muxer_select="asf_muxer"
2395 avi_demuxer_select="riffdec exif"
2396 avi_muxer_select="riffenc"
2397 avisynth_demuxer_deps="avisynth"
2398 avisynth_demuxer_select="riffdec"
2399 caf_demuxer_select="riffdec"
2400 dirac_demuxer_select="dirac_parser"
2401 dts_demuxer_select="dca_parser"
2402 dtshd_demuxer_select="dca_parser"
2403 dv_demuxer_select="dvprofile"
2404 dv_muxer_select="dvprofile"
2405 dxa_demuxer_select="riffdec"
2406 eac3_demuxer_select="ac3_parser"
2407 f4v_muxer_select="mov_muxer"
2408 flac_demuxer_select="flac_parser"
2409 hds_muxer_select="flv_muxer"
2410 hls_muxer_select="mpegts_muxer"
2411 image2_alias_pix_demuxer_select="image2_demuxer"
2412 image2_brender_pix_demuxer_select="image2_demuxer"
2413 ipod_muxer_select="mov_muxer"
2414 ismv_muxer_select="mov_muxer"
2415 libnut_demuxer_deps="libnut"
2416 libnut_muxer_deps="libnut"
2417 matroska_audio_muxer_select="matroska_muxer"
2418 matroska_demuxer_select="riffdec"
2419 matroska_demuxer_suggest="bzlib lzo zlib"
2420 matroska_muxer_select="riffenc"
2421 mmf_muxer_select="riffenc"
2422 mov_demuxer_select="riffdec"
2423 mov_demuxer_suggest="zlib"
2424 mov_muxer_select="riffenc rtpenc_chain ac3_parser"
2425 mp3_demuxer_select="mpegaudio_parser"
2426 mp4_muxer_select="mov_muxer"
2427 mpegts_muxer_select="adts_muxer latm_muxer"
2428 mpegtsraw_demuxer_select="mpegts_demuxer"
2429 mxf_d10_muxer_select="mxf_muxer"
2430 nut_muxer_select="riffenc"
2431 nuv_demuxer_select="riffdec"
2432 oga_muxer_select="ogg_muxer"
2433 ogg_demuxer_select="golomb"
2434 opus_muxer_select="ogg_muxer"
2435 psp_muxer_select="mov_muxer"
2436 rtp_demuxer_select="sdp_demuxer"
2437 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2438 rtsp_demuxer_select="http_protocol rtpdec"
2439 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2440 sap_demuxer_select="sdp_demuxer"
2441 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2442 sdp_demuxer_select="rtpdec"
2443 smoothstreaming_muxer_select="ismv_muxer"
2444 spdif_muxer_select="aac_parser"
2445 spx_muxer_select="ogg_muxer"
2446 tak_demuxer_select="tak_parser"
2447 tg2_muxer_select="mov_muxer"
2448 tgp_muxer_select="mov_muxer"
2449 vobsub_demuxer_select="mpegps_demuxer"
2450 w64_demuxer_select="wav_demuxer"
2451 w64_muxer_select="wav_muxer"
2452 wav_demuxer_select="riffdec"
2453 wav_muxer_select="riffenc"
2454 webm_muxer_select="riffenc"
2455 wtv_demuxer_select="riffdec"
2456 wtv_muxer_select="riffenc"
2457 xmv_demuxer_select="riffdec"
2458 xwma_demuxer_select="riffdec"
2459
2460 # indevs / outdevs
2461 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2462 alsa_outdev_deps="alsa_asoundlib_h"
2463 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia -framework CoreGraphics"
2464 avfoundation_indev_select="avfoundation"
2465 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2466 caca_outdev_deps="libcaca"
2467 decklink_outdev_deps="decklink pthreads"
2468 decklink_outdev_extralibs="-lstdc++"
2469 decklink_indev_deps="decklink pthreads"
2470 decklink_indev_extralibs="-lstdc++"
2471 dshow_indev_deps="IBaseFilter"
2472 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2473 dv1394_indev_deps="dv1394"
2474 dv1394_indev_select="dv_demuxer"
2475 fbdev_indev_deps="linux_fb_h"
2476 fbdev_outdev_deps="linux_fb_h"
2477 gdigrab_indev_deps="CreateDIBSection"
2478 gdigrab_indev_extralibs="-lgdi32"
2479 gdigrab_indev_select="bmp_decoder"
2480 iec61883_indev_deps="libiec61883"
2481 jack_indev_deps="jack_jack_h sem_timedwait"
2482 lavfi_indev_deps="avfilter"
2483 libcdio_indev_deps="libcdio"
2484 libdc1394_indev_deps="libdc1394"
2485 libv4l2_indev_deps="libv4l2"
2486 openal_indev_deps="openal"
2487 opengl_outdev_deps="opengl"
2488 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2489 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2490 pulse_indev_deps="libpulse"
2491 pulse_outdev_deps="libpulse"
2492 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2493 qtkit_indev_select="qtkit"
2494 sdl_outdev_deps="sdl"
2495 sndio_indev_deps="sndio_h"
2496 sndio_outdev_deps="sndio_h"
2497 v4l_indev_deps="linux_videodev_h"
2498 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2499 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2500 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2501 vfwcap_indev_extralibs="-lavicap32"
2502 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2503 xv_outdev_extralibs="-lXv -lX11 -lXext"
2504 x11grab_indev_deps="x11grab"
2505 x11grab_xcb_indev_deps="libxcb"
2506
2507 # protocols
2508 bluray_protocol_deps="libbluray"
2509 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2510 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2511 ffrtmpcrypt_protocol_select="tcp_protocol"
2512 ffrtmphttp_protocol_deps="!librtmp_protocol"
2513 ffrtmphttp_protocol_select="http_protocol"
2514 ftp_protocol_select="tcp_protocol"
2515 gopher_protocol_select="network"
2516 http_protocol_select="tcp_protocol"
2517 httpproxy_protocol_select="tcp_protocol"
2518 https_protocol_select="tls_protocol"
2519 icecast_protocol_select="http_protocol"
2520 librtmp_protocol_deps="librtmp"
2521 librtmpe_protocol_deps="librtmp"
2522 librtmps_protocol_deps="librtmp"
2523 librtmpt_protocol_deps="librtmp"
2524 librtmpte_protocol_deps="librtmp"
2525 libsmbclient_protocol_deps="libsmbclient gplv3"
2526 libssh_protocol_deps="libssh"
2527 mmsh_protocol_select="http_protocol"
2528 mmst_protocol_select="network"
2529 rtmp_protocol_deps="!librtmp_protocol"
2530 rtmp_protocol_select="tcp_protocol"
2531 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2532 rtmps_protocol_deps="!librtmp_protocol"
2533 rtmps_protocol_select="tls_protocol"
2534 rtmpt_protocol_select="ffrtmphttp_protocol"
2535 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2536 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2537 rtp_protocol_select="udp_protocol"
2538 sctp_protocol_deps="struct_sctp_event_subscribe"
2539 sctp_protocol_select="network"
2540 srtp_protocol_select="rtp_protocol"
2541 tcp_protocol_select="network"
2542 tls_protocol_deps_any="openssl gnutls"
2543 tls_protocol_select="tcp_protocol"
2544 udp_protocol_select="network"
2545 udplite_protocol_select="network"
2546 unix_protocol_deps="sys_un_h"
2547 unix_protocol_select="network"
2548
2549 # filters
2550 amovie_filter_deps="avcodec avformat"
2551 aresample_filter_deps="swresample"
2552 ass_filter_deps="libass"
2553 asyncts_filter_deps="avresample"
2554 atempo_filter_deps="avcodec"
2555 atempo_filter_select="rdft"
2556 azmq_filter_deps="libzmq"
2557 blackframe_filter_deps="gpl"
2558 boxblur_filter_deps="gpl"
2559 bs2b_filter_deps="libbs2b"
2560 colormatrix_filter_deps="gpl"
2561 cropdetect_filter_deps="gpl"
2562 delogo_filter_deps="gpl"
2563 deshake_filter_select="pixelutils"
2564 drawtext_filter_deps="libfreetype"
2565 ebur128_filter_deps="gpl"
2566 flite_filter_deps="libflite"
2567 frei0r_filter_deps="frei0r dlopen"
2568 frei0r_filter_extralibs='$ldl'
2569 frei0r_src_filter_deps="frei0r dlopen"
2570 frei0r_src_filter_extralibs='$ldl'
2571 geq_filter_deps="gpl"
2572 histeq_filter_deps="gpl"
2573 hqdn3d_filter_deps="gpl"
2574 interlace_filter_deps="gpl"
2575 kerndeint_filter_deps="gpl"
2576 ladspa_filter_deps="ladspa dlopen"
2577 ladspa_filter_extralibs='$ldl'
2578 mcdeint_filter_deps="avcodec gpl"
2579 movie_filter_deps="avcodec avformat"
2580 mp_filter_deps="gpl avcodec swscale inline_asm"
2581 mpdecimate_filter_deps="gpl"
2582 mpdecimate_filter_select="pixelutils"
2583 mptestsrc_filter_deps="gpl"
2584 negate_filter_deps="lut_filter"
2585 perspective_filter_deps="gpl"
2586 ocv_filter_deps="libopencv"
2587 owdenoise_filter_deps="gpl"
2588 pan_filter_deps="swresample"
2589 phase_filter_deps="gpl"
2590 pp_filter_deps="gpl postproc"
2591 pullup_filter_deps="gpl"
2592 removelogo_filter_deps="avcodec avformat swscale"
2593 resample_filter_deps="avresample"
2594 sab_filter_deps="gpl swscale"
2595 scale_filter_deps="swscale"
2596 select_filter_select="pixelutils"
2597 smartblur_filter_deps="gpl swscale"
2598 showspectrum_filter_deps="avcodec"
2599 showspectrum_filter_select="rdft"
2600 spp_filter_deps="gpl avcodec"
2601 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2602 stereo3d_filter_deps="gpl"
2603 subtitles_filter_deps="avformat avcodec libass"
2604 super2xsai_filter_deps="gpl"
2605 tinterlace_filter_deps="gpl"
2606 vidstabdetect_filter_deps="libvidstab"
2607 vidstabtransform_filter_deps="libvidstab"
2608 pixfmts_super2xsai_test_deps="super2xsai_filter"
2609 tinterlace_merge_test_deps="tinterlace_filter"
2610 tinterlace_pad_test_deps="tinterlace_filter"
2611 zmq_filter_deps="libzmq"
2612 zoompan_filter_deps="swscale"
2613
2614 # examples
2615 avio_reading="avformat avcodec avutil"
2616 avcodec_example_deps="avcodec avutil"
2617 decoding_encoding_example_deps="avcodec avformat avutil"
2618 demuxing_decoding_example_deps="avcodec avformat avutil"
2619 extract_mvs_example_deps="avcodec avformat avutil"
2620 filter_audio_example_deps="avfilter avutil"
2621 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2622 filtering_video_example_deps="avfilter avcodec avformat avutil"
2623 metadata_example_deps="avformat avutil"
2624 muxing_example_deps="avcodec avformat avutil swscale"
2625 remuxing_example_deps="avcodec avformat avutil"
2626 resampling_audio_example_deps="avutil swresample"
2627 scaling_video_example_deps="avutil swscale"
2628 transcode_aac_example_deps="avcodec avformat swresample"
2629 transcoding_example_deps="avfilter avcodec avformat avutil"
2630
2631 # libraries, in linking order
2632 avcodec_deps="avutil"
2633 avdevice_deps="avformat avcodec avutil"
2634 avfilter_deps="avutil"
2635 avformat_deps="avcodec avutil"
2636 avresample_deps="avutil"
2637 postproc_deps="avutil gpl"
2638 swresample_deps="avutil"
2639 swscale_deps="avutil"
2640
2641 # programs
2642 ffmpeg_deps="avcodec avfilter avformat swresample"
2643 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2644                null_filter
2645                setpts_filter trim_filter"
2646 ffplay_deps="avcodec avformat swscale swresample sdl"
2647 ffplay_libs='$sdl_libs'
2648 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2649 ffprobe_deps="avcodec avformat"
2650 ffserver_deps="avformat fork sarestart"
2651 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2652
2653 # documentation
2654 podpages_deps="perl"
2655 manpages_deps="perl pod2man"
2656 htmlpages_deps="perl"
2657 htmlpages_deps_any="makeinfo_html texi2html"
2658 txtpages_deps="perl makeinfo"
2659 doc_deps_any="manpages htmlpages podpages txtpages"
2660
2661 # default parameters
2662
2663 logfile="config.log"
2664
2665 # installation paths
2666 prefix_default="/usr/local"
2667 bindir_default='${prefix}/bin'
2668 datadir_default='${prefix}/share/ffmpeg'
2669 docdir_default='${prefix}/share/doc/ffmpeg'
2670 incdir_default='${prefix}/include'
2671 libdir_default='${prefix}/lib'
2672 mandir_default='${prefix}/share/man'
2673 shlibdir_default="$libdir_default"
2674
2675 # toolchain
2676 ar_default="ar"
2677 cc_default="gcc"
2678 cxx_default="g++"
2679 host_cc_default="gcc"
2680 cp_f="cp -f"
2681 doxygen_default="doxygen"
2682 install="install"
2683 ln_s="ln -s -f"
2684 nm_default="nm -g"
2685 objformat="elf"
2686 pkg_config_default=pkg-config
2687 ranlib_default="ranlib"
2688 strip_default="strip"
2689 yasmexe_default="yasm"
2690 windres_default="windres"
2691
2692 # OS
2693 target_os_default=$(tolower $(uname -s))
2694 host_os=$target_os_default
2695
2696 # machine
2697 if test "$target_os_default" = aix; then
2698     arch_default=$(uname -p)
2699     strip_default="strip -X32_64"
2700 else
2701     arch_default=$(uname -m)
2702 fi
2703 cpu="generic"
2704 intrinsics="none"
2705
2706 # configurable options
2707 enable $PROGRAM_LIST
2708 enable $DOCUMENT_LIST
2709 enable $EXAMPLE_LIST
2710 enable $(filter_out avresample $LIBRARY_LIST)
2711 enable stripping
2712
2713 enable asm
2714 enable debug
2715 enable doc
2716 enable faan faandct faanidct
2717 enable optimizations
2718 enable runtime_cpudetect
2719 enable safe_bitstream_reader
2720 enable static
2721 enable swscale_alpha
2722
2723 sws_max_filter_size_default=256
2724 set_default sws_max_filter_size
2725
2726 # Enable hwaccels by default.
2727 enable dxva2 vaapi vda vdpau xvmc
2728 enable xlib
2729
2730 # build settings
2731 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2732 LIBPREF="lib"
2733 LIBSUF=".a"
2734 FULLNAME='$(NAME)$(BUILDSUF)'
2735 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2736 SLIBPREF="lib"
2737 SLIBSUF=".so"
2738 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2739 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2740 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2741 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2742 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2743 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2744
2745 asflags_filter=echo
2746 cflags_filter=echo
2747 ldflags_filter=echo
2748
2749 AS_C='-c'
2750 AS_O='-o $@'
2751 CC_C='-c'
2752 CC_E='-E -o $@'
2753 CC_O='-o $@'
2754 CXX_C='-c'
2755 CXX_O='-o $@'
2756 LD_O='-o $@'
2757 LD_LIB='-l%'
2758 LD_PATH='-L'
2759 HOSTCC_C='-c'
2760 HOSTCC_E='-E -o $@'
2761 HOSTCC_O='-o $@'
2762 HOSTLD_O='-o $@'
2763
2764 host_libs='-lm'
2765 host_cflags_filter=echo
2766 host_ldflags_filter=echo
2767
2768 target_path='$(CURDIR)'
2769
2770 # since the object filename is not given with the -MM flag, the compiler
2771 # is only able to print the basename, and we must add the path ourselves
2772 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2773 DEPFLAGS='-MM'
2774
2775 # find source path
2776 if test -f configure; then
2777     source_path=.
2778 else
2779     source_path=$(cd $(dirname "$0"); pwd)
2780     echo "$source_path" | grep -q '[[:blank:]]' &&
2781         die "Out of tree builds are impossible with whitespace in source path."
2782     test -e "$source_path/config.h" &&
2783         die "Out of tree builds are impossible with config.h in source dir."
2784 fi
2785
2786 for v in "$@"; do
2787     r=${v#*=}
2788     l=${v%"$r"}
2789     r=$(sh_quote "$r")
2790     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2791 done
2792
2793 find_things(){
2794     thing=$1
2795     pattern=$2
2796     file=$source_path/$3
2797     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2798 }
2799
2800 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2801 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2802 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2803 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2804 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2805 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2806 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2807 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2808 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2809 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2810 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2811
2812 ALL_COMPONENTS="
2813     $BSF_LIST
2814     $DECODER_LIST
2815     $DEMUXER_LIST
2816     $ENCODER_LIST
2817     $FILTER_LIST
2818     $HWACCEL_LIST
2819     $INDEV_LIST
2820     $MUXER_LIST
2821     $OUTDEV_LIST
2822     $PARSER_LIST
2823     $PROTOCOL_LIST
2824 "
2825
2826 for n in $COMPONENT_LIST; do
2827     v=$(toupper ${n%s})_LIST
2828     eval enable \$$v
2829     eval ${n}_if_any="\$$v"
2830 done
2831
2832 enable $ARCH_EXT_LIST
2833
2834 die_unknown(){
2835     echo "Unknown option \"$1\"."
2836     echo "See $0 --help for available options."
2837     exit 1
2838 }
2839
2840 print_3_columns() {
2841     cat | tr ' ' '\n' | sort | pr -r -3 -t
2842 }
2843
2844 show_list() {
2845     suffix=_$1
2846     shift
2847     echo $* | sed s/$suffix//g | print_3_columns
2848     exit 0
2849 }
2850
2851 rand_list(){
2852     IFS=', '
2853     set -- $*
2854     unset IFS
2855     for thing; do
2856         comp=${thing%:*}
2857         prob=${thing#$comp}
2858         prob=${prob#:}
2859         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2860         echo "prob ${prob:-0.5}"
2861         printf '%s\n' $comp
2862     done
2863 }
2864
2865 do_random(){
2866     action=$1
2867     shift
2868     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2869     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2870 }
2871
2872 for opt do
2873     optval="${opt#*=}"
2874     case "$opt" in
2875         --extra-ldflags=*)
2876             add_ldflags $optval
2877         ;;
2878         --extra-ldexeflags=*)
2879             add_ldexeflags $optval
2880         ;;
2881         --extra-libs=*)
2882             add_extralibs $optval
2883         ;;
2884         --disable-devices)
2885             disable $INDEV_LIST $OUTDEV_LIST
2886         ;;
2887         --enable-debug=*)
2888             debuglevel="$optval"
2889         ;;
2890         --disable-programs)
2891             disable $PROGRAM_LIST
2892         ;;
2893         --disable-everything)
2894             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2895         ;;
2896         --disable-all)
2897             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2898             disable $LIBRARY_LIST $PROGRAM_LIST doc
2899         ;;
2900         --enable-random|--disable-random)
2901             action=${opt%%-random}
2902             do_random ${action#--} $COMPONENT_LIST
2903         ;;
2904         --enable-random=*|--disable-random=*)
2905             action=${opt%%-random=*}
2906             do_random ${action#--} $optval
2907         ;;
2908         --enable-*=*|--disable-*=*)
2909             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2910             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2911             eval list=\$$(toupper $thing)_LIST
2912             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2913             list=$(filter "$name" $list)
2914             [ "$list" = "" ] && warn "Option $opt did not match anything"
2915             $action $list
2916         ;;
2917         --enable-?*|--disable-?*)
2918             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2919             if is_in $option $COMPONENT_LIST; then
2920                 test $action = disable && action=unset
2921                 eval $action \$$(toupper ${option%s})_LIST
2922             elif is_in $option $CMDLINE_SELECT; then
2923                 $action $option
2924             else
2925                 die_unknown $opt
2926             fi
2927         ;;
2928         --list-*)
2929             NAME="${opt#--list-}"
2930             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2931             NAME=${NAME%s}
2932             eval show_list $NAME \$$(toupper $NAME)_LIST
2933         ;;
2934         --help|-h) show_help
2935         ;;
2936         --fatal-warnings) enable fatal_warnings
2937         ;;
2938         *)
2939             optname="${opt%%=*}"
2940             optname="${optname#--}"
2941             optname=$(echo "$optname" | sed 's/-/_/g')
2942             if is_in $optname $CMDLINE_SET; then
2943                 eval $optname='$optval'
2944             elif is_in $optname $CMDLINE_APPEND; then
2945                 append $optname "$optval"
2946             else
2947                 die_unknown $opt
2948             fi
2949         ;;
2950     esac
2951 done
2952
2953 disabled logging && logfile=/dev/null
2954
2955 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2956 set >> $logfile
2957
2958 test -n "$cross_prefix" && enable cross_compile
2959
2960 if enabled cross_compile; then
2961     test -n "$arch" && test -n "$target_os" ||
2962         die "Must specify target arch and OS when cross-compiling"
2963 fi
2964
2965 ar_default="${cross_prefix}${ar_default}"
2966 cc_default="${cross_prefix}${cc_default}"
2967 cxx_default="${cross_prefix}${cxx_default}"
2968 nm_default="${cross_prefix}${nm_default}"
2969 pkg_config_default="${cross_prefix}${pkg_config_default}"
2970 ranlib_default="${cross_prefix}${ranlib_default}"
2971 strip_default="${cross_prefix}${strip_default}"
2972 windres_default="${cross_prefix}${windres_default}"
2973
2974 sysinclude_default="${sysroot}/usr/include"
2975
2976 test -n "$valgrind" && toolchain="valgrind-memcheck"
2977
2978 case "$toolchain" in
2979     clang-asan)
2980         cc_default="clang"
2981         add_cflags  -fsanitize=address
2982         add_ldflags -fsanitize=address
2983     ;;
2984     clang-tsan)
2985         cc_default="clang"
2986         add_cflags  -fsanitize=thread -pie
2987         add_ldflags -fsanitize=thread -pie
2988     ;;
2989     clang-usan)
2990         cc_default="clang"
2991         add_cflags  -fsanitize=undefined
2992         add_ldflags -fsanitize=undefined
2993     ;;
2994     gcc-asan)
2995         cc_default="gcc"
2996         add_cflags  -fsanitize=address
2997         add_ldflags -fsanitize=address
2998     ;;
2999     gcc-tsan)
3000         cc_default="gcc"
3001         add_cflags  -fsanitize=thread -pie -fPIC
3002         add_ldflags -fsanitize=thread -pie -fPIC
3003     ;;
3004     gcc-usan)
3005         cc_default="gcc"
3006         add_cflags  -fsanitize=undefined
3007         add_ldflags -fsanitize=undefined
3008     ;;
3009     valgrind-massif)
3010         target_exec_default=${valgrind:-"valgrind"}
3011         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"
3012     ;;
3013     valgrind-memcheck)
3014         target_exec_default=${valgrind:-"valgrind"}
3015         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3016     ;;
3017     msvc)
3018         # Check whether the current MSVC version needs the C99 converter.
3019         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3020         # support enough of C99 to build ffmpeg. Default to the new
3021         # behaviour if the regexp was unable to match anything, since this
3022         # successfully parses the version number of existing supported
3023         # versions that require the converter (MSVC 2010 and 2012).
3024         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3025         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3026             cc_default="cl"
3027         else
3028             cc_default="c99wrap cl"
3029         fi
3030         ld_default="link"
3031         nm_default="dumpbin -symbols"
3032         ar_default="lib"
3033         target_os_default="win32"
3034         # Use a relative path for TMPDIR. This makes sure all the
3035         # ffconf temp files are written with a relative path, avoiding
3036         # issues with msys/win32 path conversion for MSVC parameters
3037         # such as -Fo<file> or -out:<file>.
3038         TMPDIR=.
3039     ;;
3040     icl)
3041         cc_default="icl"
3042         ld_default="xilink"
3043         nm_default="dumpbin -symbols"
3044         ar_default="xilib"
3045         target_os_default="win32"
3046         TMPDIR=.
3047     ;;
3048     gcov)
3049         add_cflags  -fprofile-arcs -ftest-coverage
3050         add_ldflags -fprofile-arcs -ftest-coverage
3051     ;;
3052     hardened)
3053         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3054         add_cflags   -fno-strict-overflow -fstack-protector-all
3055         add_ldflags  -Wl,-z,relro -Wl,-z,now
3056     ;;
3057     ?*)
3058         die "Unknown toolchain $toolchain"
3059     ;;
3060 esac
3061
3062 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3063     target_exec target_os yasmexe
3064 enabled cross_compile || host_cc_default=$cc
3065 set_default host_cc
3066
3067 if ! $pkg_config --version >/dev/null 2>&1; then
3068     warn "$pkg_config not found, library detection may fail."
3069     pkg_config=false
3070 fi
3071
3072 if test $doxygen != $doxygen_default && \
3073   ! $doxygen --version >/dev/null 2>&1; then
3074     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3075 fi
3076
3077 exesuf() {
3078     case $1 in
3079         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3080     esac
3081 }
3082
3083 EXESUF=$(exesuf $target_os)
3084 HOSTEXESUF=$(exesuf $host_os)
3085
3086 # set temporary file name
3087 : ${TMPDIR:=$TEMPDIR}
3088 : ${TMPDIR:=$TMP}
3089 : ${TMPDIR:=/tmp}
3090
3091 if [ -n "$tempprefix" ] ; then
3092     mktemp(){
3093         echo $tempprefix.${HOSTNAME}.${UID}
3094     }
3095 elif ! check_cmd mktemp -u XXXXXX; then
3096     # simple replacement for missing mktemp
3097     # NOT SAFE FOR GENERAL USE
3098     mktemp(){
3099         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3100     }
3101 fi
3102
3103 tmpfile(){
3104     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3105         (set -C; exec > $tmp) 2>/dev/null ||
3106         die "Unable to create temporary file in $TMPDIR."
3107     append TMPFILES $tmp
3108     eval $1=$tmp
3109 }
3110
3111 trap 'rm -f -- $TMPFILES' EXIT
3112
3113 tmpfile TMPASM .asm
3114 tmpfile TMPC   .c
3115 tmpfile TMPCPP .cpp
3116 tmpfile TMPE   $EXESUF
3117 tmpfile TMPH   .h
3118 tmpfile TMPM   .m
3119 tmpfile TMPO   .o
3120 tmpfile TMPS   .S
3121 tmpfile TMPSH  .sh
3122 tmpfile TMPV   .ver
3123
3124 unset -f mktemp
3125
3126 chmod +x $TMPE
3127
3128 # make sure we can execute files in $TMPDIR
3129 cat > $TMPSH 2>> $logfile <<EOF
3130 #! /bin/sh
3131 EOF
3132 chmod +x $TMPSH >> $logfile 2>&1
3133 if ! $TMPSH >> $logfile 2>&1; then
3134     cat <<EOF
3135 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3136 variable to another directory and make sure that it is not mounted noexec.
3137 EOF
3138     die "Sanity test failed."
3139 fi
3140
3141 armasm_flags(){
3142     for flag; do
3143         case $flag in
3144             # Filter out MSVC cl.exe options from cflags that shouldn't
3145             # be passed to gas-preprocessor
3146             -M[TD]*)                                            ;;
3147             *)                  echo $flag                      ;;
3148         esac
3149    done
3150 }
3151
3152 ccc_flags(){
3153     for flag; do
3154         case $flag in
3155             -std=c99)           echo -c99                       ;;
3156             -mcpu=*)            echo -arch ${flag#*=}           ;;
3157             -mieee)             echo -ieee                      ;;
3158             -O*|-fast)          echo $flag                      ;;
3159             -fno-math-errno)    echo -assume nomath_errno       ;;
3160             -g)                 echo -g3                        ;;
3161             -Wall)              echo -msg_enable level2         ;;
3162             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3163             -Wl,*)              echo $flag                      ;;
3164             -f*|-W*)                                            ;;
3165             *)                  echo $flag                      ;;
3166         esac
3167    done
3168 }
3169
3170 cparser_flags(){
3171     for flag; do
3172         case $flag in
3173             -Wno-switch)             echo -Wno-switch-enum ;;
3174             -Wno-format-zero-length) ;;
3175             -Wdisabled-optimization) ;;
3176             -Wno-pointer-sign)       echo -Wno-other ;;
3177             *)                       echo $flag ;;
3178         esac
3179     done
3180 }
3181
3182 msvc_common_flags(){
3183     for flag; do
3184         case $flag in
3185             # In addition to specifying certain flags under the compiler
3186             # specific filters, they must be specified here as well or else the
3187             # generic catch all at the bottom will print the original flag.
3188             -Wall)                ;;
3189             -std=c99)             ;;
3190             # Common flags
3191             -fomit-frame-pointer) ;;
3192             -g)                   echo -Z7 ;;
3193             -fno-math-errno)      ;;
3194             -fno-common)          ;;
3195             -fno-signed-zeros)    ;;
3196             -fPIC)                ;;
3197             -mthumb)              ;;
3198             -march=*)             ;;
3199             -lz)                  echo zlib.lib ;;
3200             -lavifil32)           echo vfw32.lib ;;
3201             -lavicap32)           echo vfw32.lib user32.lib ;;
3202             -l*)                  echo ${flag#-l}.lib ;;
3203             *)                    echo $flag ;;
3204         esac
3205     done
3206 }
3207
3208 msvc_flags(){
3209     msvc_common_flags "$@"
3210     for flag; do
3211         case $flag in
3212             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3213                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3214                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3215                                        -wd4554 \
3216                                        -wd4273 -wd4701 ;;
3217         esac
3218     done
3219 }
3220
3221 icl_flags(){
3222     msvc_common_flags "$@"
3223     for flag; do
3224         case $flag in
3225             # Despite what Intel's documentation says -Wall, which is supported
3226             # on Windows, does enable remarks so disable them here.
3227             -Wall)                echo $flag -Qdiag-disable:remark ;;
3228             -std=c99)             echo -Qstd=c99 ;;
3229             -flto)                echo -ipo ;;
3230         esac
3231     done
3232 }
3233
3234 icc_flags(){
3235     for flag; do
3236         case $flag in
3237             -flto)                echo -ipo ;;
3238             *)                    echo $flag ;;
3239         esac
3240     done
3241 }
3242
3243 pgi_flags(){
3244     for flag; do
3245         case $flag in
3246             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3247             -fomit-frame-pointer) echo -Mnoframe ;;
3248             -g)                   echo -gopt ;;
3249             *)                    echo $flag ;;
3250         esac
3251     done
3252 }
3253
3254 suncc_flags(){
3255     for flag; do
3256         case $flag in
3257             -march=*|-mcpu=*)
3258                 case "${flag#*=}" in
3259                     native)                   echo -xtarget=native       ;;
3260                     v9|niagara)               echo -xarch=sparc          ;;
3261                     ultrasparc)               echo -xarch=sparcvis       ;;
3262                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3263                     i586|pentium)             echo -xchip=pentium        ;;
3264                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3265                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3266                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3267                     pentium4*)          echo -xtarget=pentium4           ;;
3268                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3269                     *-sse3)             echo -xarch=sse3                 ;;
3270                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3271                     bonnell)                   echo -xarch=ssse3         ;;
3272                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3273                     westmere)                  echo -xtarget=westmere    ;;
3274                     silvermont)                echo -xarch=sse4_2        ;;
3275                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3276                     core-avx*|ivybridge|haswell|broadwell)
3277                                                echo -xarch=avx           ;;
3278                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3279                     btver1)                    echo -xarch=amdsse4a      ;;
3280                     btver2|bdver*)             echo -xarch=avx           ;;
3281                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3282                     k8|opteron|athlon64|athlon-fx)
3283                                                echo -xarch=sse2a         ;;
3284                     athlon*)                   echo -xarch=pentium_proa  ;;
3285                 esac
3286                 ;;
3287             -std=c99)             echo -xc99              ;;
3288             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3289             -fPIC)                echo -KPIC -xcode=pic32 ;;
3290             -W*,*)                echo $flag              ;;
3291             -f*-*|-W*|-mimpure-text)                      ;;
3292             -shared)              echo -G                 ;;
3293             *)                    echo $flag              ;;
3294         esac
3295     done
3296 }
3297
3298 tms470_flags(){
3299     for flag; do
3300         case $flag in
3301             -march=*|-mcpu=*)
3302                 case "${flag#*=}" in
3303                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3304                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3305                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3306                     armv6*|arm11*)          echo -mv=6   ;;
3307                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3308                                             echo -mv=5e  ;;
3309                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3310                 esac
3311                 ;;
3312             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3313             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3314             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3315             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3316             -msoft-float)   echo --float_support=vfplib       ;;
3317             -O[0-3]|-mf=*)  echo $flag                        ;;
3318             -g)             echo -g -mn                       ;;
3319             -pds=*)         echo $flag                        ;;
3320             -D*|-I*)        echo $flag                        ;;
3321             --gcc|--abi=*)  echo $flag                        ;;
3322             -me)            echo $flag                        ;;
3323         esac
3324     done
3325 }
3326
3327 probe_cc(){
3328     pfx=$1
3329     _cc=$2
3330
3331     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3332     unset _ld_o _ldflags _ld_lib _ld_path
3333     unset _depflags _DEPCMD _DEPFLAGS
3334     _flags_filter=echo
3335
3336     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3337         true # no-op to avoid reading stdin in following checks
3338     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3339         _type=llvm_gcc
3340         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3341         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3342         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3343         _cflags_speed='-O3'
3344         _cflags_size='-Os'
3345     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3346         _type=gcc
3347         gcc_version=$($_cc --version | head -n1)
3348         gcc_basever=$($_cc -dumpversion)
3349         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3350         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3351         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3352         if ! $_cc -dumpversion | grep -q '^2\.'; then
3353             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3354         fi
3355         _cflags_speed='-O3'
3356         _cflags_size='-Os'
3357     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3358         _type=icc
3359         _ident=$($_cc --version | head -n1)
3360         _depflags='-MMD'
3361         _cflags_speed='-O3'
3362         _cflags_size='-Os'
3363         _cflags_noopt='-O1'
3364         _flags_filter=icc_flags
3365     elif $_cc -v 2>&1 | grep -q xlc; then
3366         _type=xlc
3367         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3368         _cflags_speed='-O5'
3369         _cflags_size='-O5 -qcompact'
3370     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3371         _type=ccc
3372         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3373         _DEPFLAGS='-M'
3374         _cflags_speed='-fast'
3375         _cflags_size='-O1'
3376         _flags_filter=ccc_flags
3377     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3378         test -d "$sysroot" || die "No valid sysroot specified."
3379         _type=armcc
3380         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3381         armcc_conf="$PWD/armcc.conf"
3382         $_cc --arm_linux_configure                 \
3383              --arm_linux_config_file="$armcc_conf" \
3384              --configure_sysroot="$sysroot"        \
3385              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3386              die "Error creating armcc configuration file."
3387         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3388         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3389         as_default="${cross_prefix}gcc"
3390         _depflags='-MMD'
3391         _cflags_speed='-O3'
3392         _cflags_size='-Os'
3393     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3394         _type=tms470
3395         _ident=$($_cc -version | head -n1 | tr -s ' ')
3396         _flags='--gcc --abi=eabi -me'
3397         _cc_e='-ppl -fe=$@'
3398         _cc_o='-fe=$@'
3399         _depflags='-ppa -ppd=$(@:.o=.d)'
3400         _cflags_speed='-O3 -mf=5'
3401         _cflags_size='-O3 -mf=2'
3402         _flags_filter=tms470_flags
3403     elif $_cc -v 2>&1 | grep -q clang; then
3404         _type=clang
3405         _ident=$($_cc --version | head -n1)
3406         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3407         _cflags_speed='-O3'
3408         _cflags_size='-Os'
3409     elif $_cc -V 2>&1 | grep -q Sun; then
3410         _type=suncc
3411         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3412         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3413         _DEPFLAGS='-xM1 -xc99'
3414         _ldflags='-std=c99'
3415         _cflags_speed='-O5'
3416         _cflags_size='-O5 -xspace'
3417         _flags_filter=suncc_flags
3418     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3419         _type=pathscale
3420         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3421         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3422         _cflags_speed='-O2'
3423         _cflags_size='-Os'
3424         _flags_filter='filter_out -Wdisabled-optimization'
3425     elif $_cc -v 2>&1 | grep -q Open64; then
3426         _type=open64
3427         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3428         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3429         _cflags_speed='-O2'
3430         _cflags_size='-Os'
3431         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3432     elif $_cc -V 2>&1 | grep -q Portland; then
3433         _type=pgi
3434         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3435         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3436         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3437         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3438         _cflags_noopt="-O"
3439         _flags_filter=pgi_flags
3440     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3441         _type=armasm
3442         _ident=$($_cc | head -n1)
3443         # 4509: "This form of conditional instruction is deprecated"
3444         _flags="-nologo -ignore 4509"
3445         _flags_filter=armasm_flags
3446     elif $_cc 2>&1 | grep -q Microsoft; then
3447         _type=msvc
3448         _ident=$($cc 2>&1 | head -n1)
3449         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3450         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3451         _cflags_speed="-O2"
3452         _cflags_size="-O1"
3453         if $_cc 2>&1 | grep -q Linker; then
3454             _ld_o='-out:$@'
3455         else
3456             _ld_o='-Fe$@'
3457         fi
3458         _cc_o='-Fo$@'
3459         _cc_e='-P -Fi$@'
3460         _flags_filter=msvc_flags
3461         _ld_lib='lib%.a'
3462         _ld_path='-libpath:'
3463         _flags='-nologo'
3464         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3465         if [ $pfx = hostcc ]; then
3466             append _cflags -Dsnprintf=_snprintf
3467         fi
3468         disable stripping
3469     elif $_cc 2>&1 | grep -q Intel; then
3470         _type=icl
3471         _ident=$($cc 2>&1 | head -n1)
3472         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3473         # Not only is O3 broken on 13.x+ but it is slower on all previous
3474         # versions (tested) as well.
3475         _cflags_speed="-O2"
3476         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3477         if $_cc 2>&1 | grep -q Linker; then
3478             _ld_o='-out:$@'
3479         else
3480             _ld_o='-Fe$@'
3481         fi
3482         _cc_o='-Fo$@'
3483         _cc_e='-P'
3484         _flags_filter=icl_flags
3485         _ld_lib='lib%.a'
3486         _ld_path='-libpath:'
3487         # -Qdiag-error to make icl error when seeing certain unknown arguments
3488         _flags='-nologo -Qdiag-error:4044,10157'
3489         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3490         # with MSVC which enables it by default.
3491         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3492         if [ $pfx = hostcc ]; then
3493             append _cflags -Dsnprintf=_snprintf
3494         fi
3495     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3496         _type=cparser
3497         _ident=$($_cc --version | head -n1)
3498         _depflags='-MMD'
3499         _cflags_speed='-O4'
3500         _cflags_size='-O2'
3501         _flags_filter=cparser_flags
3502     fi
3503
3504     eval ${pfx}_type=\$_type
3505     eval ${pfx}_ident=\$_ident
3506 }
3507
3508 set_ccvars(){
3509     eval ${1}_C=\${_cc_c-\${${1}_C}}
3510     eval ${1}_E=\${_cc_e-\${${1}_E}}
3511     eval ${1}_O=\${_cc_o-\${${1}_O}}
3512
3513     if [ -n "$_depflags" ]; then
3514         eval ${1}_DEPFLAGS=\$_depflags
3515     else
3516         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3517         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3518         eval DEP${1}FLAGS=\$_flags
3519     fi
3520 }
3521
3522 probe_cc cc "$cc"
3523 cflags_filter=$_flags_filter
3524 cflags_speed=$_cflags_speed
3525 cflags_size=$_cflags_size
3526 cflags_noopt=$_cflags_noopt
3527 add_cflags $_flags $_cflags
3528 cc_ldflags=$_ldflags
3529 set_ccvars CC
3530
3531 probe_cc hostcc "$host_cc"
3532 host_cflags_filter=$_flags_filter
3533 add_host_cflags  $_flags $_cflags
3534 set_ccvars HOSTCC
3535
3536 test -n "$cc_type" && enable $cc_type ||
3537     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3538
3539 : ${as_default:=$cc}
3540 : ${dep_cc_default:=$cc}
3541 : ${ld_default:=$cc}
3542 : ${host_ld_default:=$host_cc}
3543 set_default ar as dep_cc ld host_ld windres
3544
3545 probe_cc as "$as"
3546 asflags_filter=$_flags_filter
3547 add_asflags $_flags $_cflags
3548 set_ccvars AS
3549
3550 probe_cc ld "$ld"
3551 ldflags_filter=$_flags_filter
3552 add_ldflags $_flags $_ldflags
3553 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3554 LD_O=${_ld_o-$LD_O}
3555 LD_LIB=${_ld_lib-$LD_LIB}
3556 LD_PATH=${_ld_path-$LD_PATH}
3557
3558 probe_cc hostld "$host_ld"
3559 host_ldflags_filter=$_flags_filter
3560 add_host_ldflags $_flags $_ldflags
3561 HOSTLD_O=${_ld_o-$HOSTLD_O}
3562
3563 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3564     probe_cc depcc "$dep_cc"
3565     CCDEP=${_DEPCMD:-$DEPCMD}
3566     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3567     DEPCCFLAGS=$_flags
3568 fi
3569
3570 if $ar 2>&1 | grep -q Microsoft; then
3571     arflags="-nologo"
3572     ar_o='-out:$@'
3573 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3574     arflags="rq"
3575     ar_o='$@'
3576 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3577     arflags='-Xany -r -c'
3578     ar_o='$@'
3579 else
3580     arflags="rc"
3581     ar_o='$@'
3582 fi
3583
3584 add_cflags $extra_cflags
3585 add_cxxflags $extra_cxxflags
3586 add_asflags $extra_cflags
3587
3588 if test -n "$sysroot"; then
3589     case "$cc_type" in
3590         gcc|llvm_gcc|clang)
3591             add_cppflags --sysroot="$sysroot"
3592             add_ldflags --sysroot="$sysroot"
3593 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3594             add_cppflags -isysroot "$sysroot"
3595             add_ldflags -isysroot "$sysroot"
3596         ;;
3597         tms470)
3598             add_cppflags -I"$sysinclude"
3599             add_ldflags  --sysroot="$sysroot"
3600         ;;
3601     esac
3602 fi
3603
3604 if test "$cpu" = host; then
3605     enabled cross_compile &&
3606         die "--cpu=host makes no sense when cross-compiling."
3607
3608     case "$cc_type" in
3609         gcc|llvm_gcc)
3610             check_native(){
3611                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3612                 sed -n "/cc1.*$1=/{
3613                             s/.*$1=\\([^ ]*\\).*/\\1/
3614                             p
3615                             q
3616                         }" $TMPE
3617             }
3618             cpu=$(check_native -march || check_native -mcpu)
3619         ;;
3620     esac
3621
3622     test "${cpu:-host}" = host &&
3623         die "--cpu=host not supported with compiler $cc"
3624 fi
3625
3626 # Deal with common $arch aliases
3627 case "$arch" in
3628     aarch64|arm64)
3629         arch="aarch64"
3630     ;;
3631     arm*|iPad*|iPhone*)
3632         arch="arm"
3633     ;;
3634     mips*|IP*)
3635         arch="mips"
3636     ;;
3637     parisc*|hppa*)
3638         arch="parisc"
3639     ;;
3640     "Power Macintosh"|ppc*|powerpc*)
3641         arch="ppc"
3642     ;;
3643     s390|s390x)
3644         arch="s390"
3645     ;;
3646     sh4|sh)
3647         arch="sh4"
3648     ;;
3649     sun4u|sparc*)
3650         arch="sparc"
3651     ;;
3652     tilegx|tile-gx)
3653         arch="tilegx"
3654     ;;
3655     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3656         arch="x86"
3657     ;;
3658 esac
3659
3660 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3661 enable $arch
3662
3663 # Add processor-specific flags
3664 if enabled aarch64; then
3665
3666     case $cpu in
3667         armv*)
3668             cpuflags="-march=$cpu"
3669         ;;
3670         *)
3671             cpuflags="-mcpu=$cpu"
3672         ;;
3673     esac
3674
3675 elif enabled alpha; then
3676
3677     cpuflags="-mcpu=$cpu"
3678
3679 elif enabled arm; then
3680
3681     check_arm_arch() {
3682         check_cpp_condition stddef.h \
3683             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3684             $cpuflags
3685     }
3686
3687     probe_arm_arch() {
3688         if   check_arm_arch 4;        then echo armv4;
3689         elif check_arm_arch 4T;       then echo armv4t;
3690         elif check_arm_arch 5;        then echo armv5;
3691         elif check_arm_arch 5E;       then echo armv5e;
3692         elif check_arm_arch 5T;       then echo armv5t;
3693         elif check_arm_arch 5TE;      then echo armv5te;
3694         elif check_arm_arch 5TEJ;     then echo armv5te;
3695         elif check_arm_arch 6;        then echo armv6;
3696         elif check_arm_arch 6J;       then echo armv6j;
3697         elif check_arm_arch 6K;       then echo armv6k;
3698         elif check_arm_arch 6Z;       then echo armv6z;
3699         elif check_arm_arch 6ZK;      then echo armv6zk;
3700         elif check_arm_arch 6T2;      then echo armv6t2;
3701         elif check_arm_arch 7;        then echo armv7;
3702         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3703         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3704         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3705         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3706         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3707         fi
3708     }
3709
3710     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3711
3712     case $cpu in
3713         armv*)
3714             cpuflags="-march=$cpu"
3715             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3716         ;;
3717         *)
3718             cpuflags="-mcpu=$cpu"
3719             case $cpu in
3720                 cortex-a*)                               subarch=armv7a  ;;
3721                 cortex-r*)                               subarch=armv7r  ;;
3722                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3723                 arm11*)                                  subarch=armv6   ;;
3724                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3725                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3726                 *)                             subarch=$(probe_arm_arch) ;;
3727             esac
3728         ;;
3729     esac
3730
3731     case "$subarch" in
3732         armv5t*)    enable fast_clz                ;;
3733         armv[6-8]*)
3734             enable fast_clz
3735             disabled fast_unaligned || enable fast_unaligned
3736             ;;
3737     esac
3738
3739 elif enabled avr32; then
3740
3741     case $cpu in
3742         ap7[02]0[0-2])
3743             subarch="avr32_ap"
3744             cpuflags="-mpart=$cpu"
3745         ;;
3746         ap)
3747             subarch="avr32_ap"
3748             cpuflags="-march=$cpu"
3749         ;;
3750         uc3[ab]*)
3751             subarch="avr32_uc"
3752             cpuflags="-mcpu=$cpu"
3753         ;;
3754         uc)
3755             subarch="avr32_uc"
3756             cpuflags="-march=$cpu"
3757         ;;
3758     esac
3759
3760 elif enabled bfin; then
3761
3762     cpuflags="-mcpu=$cpu"
3763
3764 elif enabled mips; then
3765
3766     cpuflags="-march=$cpu"
3767
3768     case $cpu in
3769         24kc)
3770             disable mipsfpu
3771             disable mipsdspr1
3772             disable mipsdspr2
3773         ;;
3774         24kf*)
3775             disable mipsdspr1
3776             disable mipsdspr2
3777         ;;
3778         24kec|34kc|1004kc)
3779             disable mipsfpu
3780             disable mipsdspr2
3781         ;;
3782         24kef*|34kf*|1004kf*)
3783             disable mipsdspr2
3784         ;;
3785         74kc)
3786             disable mipsfpu
3787         ;;
3788     esac
3789
3790 elif enabled ppc; then
3791
3792     disable ldbrx
3793     disable vsx
3794
3795     case $(tolower $cpu) in
3796         601|ppc601|powerpc601)
3797             cpuflags="-mcpu=601"
3798             disable altivec
3799         ;;
3800         603*|ppc603*|powerpc603*)
3801             cpuflags="-mcpu=603"
3802             disable altivec
3803         ;;
3804         604*|ppc604*|powerpc604*)
3805             cpuflags="-mcpu=604"
3806             disable altivec
3807         ;;
3808         g3|75*|ppc75*|powerpc75*)
3809             cpuflags="-mcpu=750"
3810             disable altivec
3811         ;;
3812         g4|745*|ppc745*|powerpc745*)
3813             cpuflags="-mcpu=7450"
3814         ;;
3815         74*|ppc74*|powerpc74*)
3816             cpuflags="-mcpu=7400"
3817         ;;
3818         g5|970|ppc970|powerpc970)
3819             cpuflags="-mcpu=970"
3820         ;;
3821         power[3-8]*)
3822             cpuflags="-mcpu=$cpu"
3823         ;;
3824         cell)
3825             cpuflags="-mcpu=cell"
3826             enable ldbrx
3827         ;;
3828         e500mc)
3829             cpuflags="-mcpu=e500mc"
3830             disable altivec
3831         ;;
3832         e500v2)
3833             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3834             disable altivec
3835             disable dcbzl
3836         ;;
3837         e500)
3838             cpuflags="-mcpu=8540 -mhard-float"
3839             disable altivec
3840             disable dcbzl
3841         ;;
3842     esac
3843
3844 elif enabled sparc; then
3845
3846     case $cpu in
3847         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3848             cpuflags="-mcpu=$cpu"
3849         ;;
3850         ultrasparc*|niagara[234])
3851             cpuflags="-mcpu=$cpu"
3852         ;;
3853     esac
3854
3855 elif enabled x86; then
3856
3857     case $cpu in
3858         i[345]86|pentium)
3859             cpuflags="-march=$cpu"
3860             disable i686
3861             disable mmx
3862         ;;
3863         # targets that do NOT support nopl and conditional mov (cmov)
3864         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3865             cpuflags="-march=$cpu"
3866             disable i686
3867         ;;
3868         # targets that do support nopl and conditional mov (cmov)
3869         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3870         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3871             cpuflags="-march=$cpu"
3872             enable i686
3873             enable fast_cmov
3874         ;;
3875         # targets that do support conditional mov but on which it's slow
3876         pentium4|pentium4m|prescott|nocona)
3877             cpuflags="-march=$cpu"
3878             enable i686
3879             disable fast_cmov
3880         ;;
3881     esac
3882
3883 fi
3884
3885 if [ "$cpu" != generic ]; then
3886     add_cflags  $cpuflags
3887     add_asflags $cpuflags
3888 fi
3889
3890 # compiler sanity check
3891 check_exec <<EOF
3892 int main(void){ return 0; }
3893 EOF
3894 if test "$?" != 0; then
3895     echo "$cc is unable to create an executable file."
3896     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3897         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3898         echo "Only do this if you know what cross compiling means."
3899     fi
3900     die "C compiler test failed."
3901 fi
3902
3903 add_cppflags -D_ISOC99_SOURCE
3904 add_cxxflags -D__STDC_CONSTANT_MACROS
3905 check_cflags -std=c99
3906 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3907 #include <stdlib.h>
3908 EOF
3909 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3910 #include <stdlib.h>
3911 EOF
3912
3913 add_host_cppflags -D_ISOC99_SOURCE
3914 check_host_cflags -std=c99
3915 check_host_cflags -Wall
3916 check_host_cflags -O3
3917
3918 check_64bit(){
3919     arch32=$1
3920     arch64=$2
3921     expr=$3
3922     check_code cc "" "int test[2*($expr) - 1]" &&
3923         subarch=$arch64 || subarch=$arch32
3924 }
3925
3926 case "$arch" in
3927     aarch64|alpha|ia64)
3928         spic=$shared
3929     ;;
3930     mips)
3931         check_64bit mips mips64 '_MIPS_SIM > 1'
3932         spic=$shared
3933     ;;
3934     parisc)
3935         check_64bit parisc parisc64 'sizeof(void *) > 4'
3936         spic=$shared
3937     ;;
3938     ppc)
3939         check_64bit ppc ppc64 'sizeof(void *) > 4'
3940         spic=$shared
3941     ;;
3942     s390)
3943         check_64bit s390 s390x 'sizeof(void *) > 4'
3944         spic=$shared
3945     ;;
3946     sparc)
3947         check_64bit sparc sparc64 'sizeof(void *) > 4'
3948         spic=$shared
3949     ;;
3950     x86)
3951         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3952         # Treat x32 as x64 for now. Note it also needs spic=$shared
3953         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
3954             subarch=x86_64
3955         if test "$subarch" = "x86_64"; then
3956             spic=$shared
3957         fi
3958     ;;
3959     ppc)
3960         check_cc <<EOF && subarch="ppc64"
3961         int test[(int)sizeof(char*) - 7];
3962 EOF
3963     ;;
3964 esac
3965
3966 enable $subarch
3967 enabled spic && enable_weak pic
3968
3969 # OS specific
3970 case $target_os in
3971     aix)
3972         SHFLAGS=-shared
3973         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3974         enabled shared && add_ldflags -Wl,-brtl
3975         ;;
3976     android)
3977         disable symver
3978         SLIB_INSTALL_NAME='$(SLIBNAME)'
3979         SLIB_INSTALL_LINKS=
3980         # soname not set on purpose
3981         SHFLAGS=-shared
3982         ;;
3983     haiku)
3984         prefix_default="/boot/common"
3985         network_extralibs="-lnetwork"
3986         host_libs=
3987         ;;
3988     sunos)
3989         SHFLAGS='-shared -Wl,-h,$$(@F)'
3990         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3991         network_extralibs="-lsocket -lnsl"
3992         # When using suncc to build, the Solaris linker will mark
3993         # an executable with each instruction set encountered by
3994         # the Solaris assembler.  As our libraries contain their own
3995         # guards for processor-specific code, instead suppress
3996         # generation of the HWCAPS ELF section on Solaris x86 only.
3997         enabled_all suncc x86 &&
3998             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3999             add_ldflags -Wl,-M,mapfile
4000         nm_default='nm -P -g'
4001         ;;
4002     netbsd)
4003         disable symver
4004         oss_indev_extralibs="-lossaudio"
4005         oss_outdev_extralibs="-lossaudio"
4006         enabled gcc || check_ldflags -Wl,-zmuldefs
4007         ;;
4008     openbsd|bitrig)
4009         disable symver
4010         SHFLAGS='-shared'
4011         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4012         SLIB_INSTALL_LINKS=
4013         oss_indev_extralibs="-lossaudio"
4014         oss_outdev_extralibs="-lossaudio"
4015         ;;
4016     dragonfly)
4017         disable symver
4018         ;;
4019     freebsd)
4020         ;;
4021     bsd/os)
4022         add_extralibs -lpoll -lgnugetopt
4023         strip="strip -d"
4024         ;;
4025     darwin)
4026         enabled ppc && add_asflags -force_cpusubtype_ALL
4027         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4028         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4029         strip="${strip} -x"
4030         add_ldflags -Wl,-dynamic,-search_paths_first
4031         SLIBSUF=".dylib"
4032         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4033         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4034         objformat="macho"
4035         enabled x86_64 && objformat="macho64"
4036         enabled_any pic shared ||
4037             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4038         ;;
4039     mingw32*)
4040         if test $target_os = "mingw32ce"; then
4041             disable network
4042         else
4043             target_os=mingw32
4044         fi
4045         LIBTARGET=i386
4046         if enabled x86_64; then
4047             LIBTARGET="i386:x86-64"
4048         elif enabled arm; then
4049             LIBTARGET=arm-wince
4050         fi
4051         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4052         check_ldflags -Wl,--nxcompat
4053         check_ldflags -Wl,--dynamicbase
4054         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4055         shlibdir_default="$bindir_default"
4056         SLIBPREF=""
4057         SLIBSUF=".dll"
4058         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4059         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4060         dlltool="${cross_prefix}dlltool"
4061         if check_cmd lib.exe -list; then
4062             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4063             if enabled x86_64; then
4064                 LIBTARGET=x64
4065             fi
4066         elif check_cmd $dlltool --version; then
4067             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4068         fi
4069         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4070         SLIB_INSTALL_LINKS=
4071         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4072         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4073         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4074         objformat="win32"
4075         ranlib=:
4076         enable dos_paths
4077         ;;
4078     win32|win64)
4079         disable symver
4080         if enabled shared; then
4081             # Link to the import library instead of the normal static library
4082             # for shared libs.
4083             LD_LIB='%.lib'
4084             # Cannot build both shared and static libs with MSVC or icl.
4085             disable static
4086         fi
4087         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4088         shlibdir_default="$bindir_default"
4089         SLIBPREF=""
4090         SLIBSUF=".dll"
4091         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4092         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4093         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4094         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4095         SLIB_INSTALL_LINKS=
4096         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4097         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4098         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4099         objformat="win32"
4100         ranlib=:
4101         enable dos_paths
4102         ;;
4103     cygwin*)
4104         target_os=cygwin
4105         shlibdir_default="$bindir_default"
4106         SLIBPREF="cyg"
4107         SLIBSUF=".dll"
4108         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4109         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4110         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4111         SLIB_INSTALL_LINKS=
4112         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4113         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4114         objformat="win32"
4115         enable dos_paths
4116         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4117         ;;
4118     *-dos|freedos|opendos)
4119         network_extralibs="-lsocket"
4120         objformat="coff"
4121         enable dos_paths
4122         add_cppflags -U__STRICT_ANSI__
4123         ;;
4124     linux)
4125         enable dv1394
4126         ;;
4127     irix*)
4128         target_os=irix
4129         ranlib="echo ignoring ranlib"
4130         ;;
4131     os/2*)
4132         strip="lxlite -CS"
4133         ln_s="cp -f"
4134         objformat="aout"
4135         add_cppflags -D_GNU_SOURCE
4136         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4137         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4138         LIBSUF="_s.a"
4139         SLIBPREF=""
4140         SLIBSUF=".dll"
4141         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4142         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4143         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4144             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4145             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4146             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4147             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4148             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4149         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4150             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4151         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4152         enable dos_paths
4153         enable_weak os2threads
4154         ;;
4155     gnu/kfreebsd)
4156         add_cppflags -D_BSD_SOURCE
4157         ;;
4158     gnu)
4159         ;;
4160     qnx)
4161         add_cppflags -D_QNX_SOURCE
4162         network_extralibs="-lsocket"
4163         ;;
4164     symbian)
4165         SLIBSUF=".dll"
4166         enable dos_paths
4167         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4168         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4169         add_ldflags -Wl,--target1-abs,--no-undefined \
4170                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4171                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4172         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4173                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4174                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4175         ;;
4176     osf1)
4177         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4178         ;;
4179     minix)
4180         ;;
4181     plan9)
4182         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4183                      -D_REENTRANT_SOURCE        \
4184                      -D_RESEARCH_SOURCE         \
4185                      -DFD_SETSIZE=96            \
4186                      -DHAVE_SOCK_OPTS
4187         add_compat strtod.o strtod=avpriv_strtod
4188         network_extralibs='-lbsd'
4189         exeobjs=compat/plan9/main.o
4190         disable ffserver
4191         cp_f='cp'
4192         ;;
4193     none)
4194         ;;
4195     *)
4196         die "Unknown OS '$target_os'."
4197         ;;
4198 esac
4199
4200 # determine libc flavour
4201
4202 probe_libc(){
4203     pfx=$1
4204     pfx_no_=${pfx%_}
4205     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4206     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4207         eval ${pfx}libc_type=uclibc
4208         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4209     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4210         eval ${pfx}libc_type=glibc
4211         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4212     # MinGW headers can be installed on Cygwin, so check for newlib first.
4213     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4214         eval ${pfx}libc_type=newlib
4215         add_${pfx}cppflags -U__STRICT_ANSI__
4216     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4217     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4218         eval ${pfx}libc_type=mingw64
4219         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4220             add_compat msvcrt/snprintf.o
4221             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4222         fi
4223         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4224         eval test \$${pfx_no_}cc_type = "gcc" &&
4225             add_${pfx}cppflags -D__printf__=__gnu_printf__
4226     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4227          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4228         eval ${pfx}libc_type=mingw32
4229         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4230             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4231             die "ERROR: MinGW32 runtime version must be >= 3.15."
4232         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4233         eval test \$${pfx_no_}cc_type = "gcc" &&
4234             add_${pfx}cppflags -D__printf__=__gnu_printf__
4235     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4236         eval ${pfx}libc_type=msvcrt
4237         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4238         # 0x601 by default unless something else is set by the user.
4239         # This can easily lead to us detecting functions only present
4240         # in such new versions and producing binaries requiring windows 7.0.
4241         # Therefore explicitly set the default to XP unless the user has
4242         # set something else on the command line.
4243         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4244             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4245     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4246         eval ${pfx}libc_type=klibc
4247     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4248         eval ${pfx}libc_type=bionic
4249     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4250         eval ${pfx}libc_type=solaris
4251         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4252     fi
4253     check_${pfx}cc <<EOF
4254 #include <time.h>
4255 void *v = localtime_r;
4256 EOF
4257 test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4258 #include <time.h>
4259 void *v = localtime_r;
4260 EOF
4261
4262 }
4263
4264 probe_libc
4265 test -n "$libc_type" && enable libc_$libc_type
4266 probe_libc host_
4267 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4268
4269 case $libc_type in
4270     bionic)
4271         add_compat strtod.o strtod=avpriv_strtod
4272         ;;
4273     msvcrt)
4274         add_compat strtod.o strtod=avpriv_strtod
4275         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4276                                      _snprintf=avpriv_snprintf  \
4277                                      vsnprintf=avpriv_vsnprintf
4278         ;;
4279 esac
4280
4281 # hacks for compiler/libc/os combinations
4282
4283 if enabled_all tms470 libc_glibc; then
4284     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4285     add_cppflags -D__USER_LABEL_PREFIX__=
4286     add_cppflags -D__builtin_memset=memset
4287     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4288     add_cflags   -pds=48    # incompatible redefinition of macro
4289 fi
4290
4291 if enabled_all ccc libc_glibc; then
4292     add_ldflags -Wl,-z,now  # calls to libots crash without this
4293 fi
4294
4295 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4296     add_cppflags '-I\$(SRC_PATH)/compat/float'
4297
4298 esc(){
4299     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4300 }
4301
4302 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4303
4304 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4305
4306 set_default $PATHS_LIST
4307 set_default nm
4308
4309 # we need to build at least one lib type
4310 if ! enabled_any static shared; then
4311     cat <<EOF
4312 At least one library type must be built.
4313 Specify --enable-static to build the static libraries or --enable-shared to
4314 build the shared libraries as well. To only build the shared libraries specify
4315 --disable-static in addition to --enable-shared.
4316 EOF
4317     exit 1;
4318 fi
4319
4320 die_license_disabled() {
4321     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4322 }
4323
4324 die_license_disabled_gpl() {
4325     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4326 }
4327
4328 die_license_disabled gpl frei0r
4329 die_license_disabled gpl libcdio
4330 die_license_disabled gpl libsmbclient
4331 die_license_disabled gpl libutvideo
4332 die_license_disabled gpl libvidstab
4333 die_license_disabled gpl libx264
4334 die_license_disabled gpl libx265
4335 die_license_disabled gpl libxavs
4336 die_license_disabled gpl libxvid
4337 die_license_disabled gpl libzvbi
4338 die_license_disabled gpl x11grab
4339
4340 die_license_disabled nonfree libaacplus
4341 die_license_disabled nonfree libfaac
4342 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4343 enabled gpl && die_license_disabled_gpl nonfree openssl
4344
4345 die_license_disabled version3 libopencore_amrnb
4346 die_license_disabled version3 libopencore_amrwb
4347 die_license_disabled version3 libsmbclient
4348 die_license_disabled version3 libvo_aacenc
4349 die_license_disabled version3 libvo_amrwbenc
4350
4351 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4352
4353 disabled optimizations || check_cflags -fomit-frame-pointer
4354
4355 enable_weak_pic() {
4356     disabled pic && return
4357     enable pic
4358     add_cppflags -DPIC
4359     case "$target_os" in
4360     mingw*|cygwin*)
4361         ;;
4362     *)
4363         add_cflags -fPIC
4364         ;;
4365     esac
4366     add_asflags  -fPIC
4367 }
4368
4369 enabled pic && enable_weak_pic
4370
4371 check_cc <<EOF || die "Symbol mangling check failed."
4372 int ff_extern;
4373 EOF
4374 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4375 extern_prefix=${sym%%ff_extern*}
4376
4377 check_cc <<EOF && enable_weak inline_asm
4378 void foo(void) { __asm__ volatile ("" ::); }
4379 EOF
4380
4381 _restrict=
4382 for restrict_keyword in restrict __restrict__ __restrict; do
4383     check_cc <<EOF && _restrict=$restrict_keyword && break
4384 void foo(char * $restrict_keyword p);
4385 EOF
4386 done
4387
4388 check_cc <<EOF && enable pragma_deprecated
4389 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4390 EOF
4391
4392 check_cc <<EOF && enable attribute_packed
4393 struct { int x; } __attribute__((packed)) x;
4394 EOF
4395
4396 check_cc <<EOF && enable attribute_may_alias
4397 union { int x; } __attribute__((may_alias)) x;
4398 EOF
4399
4400 check_cc <<EOF || die "endian test failed"
4401 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4402 EOF
4403 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4404
4405 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4406     if ! enabled bigendian && enabled altivec ;then
4407         enable vsx
4408     fi
4409 fi
4410
4411 check_gas() {
4412     log "check_gas using '$as' as AS"
4413     # :vararg is used on aarch64, arm and ppc altivec
4414     check_as <<EOF || return 1
4415 .macro m n, y:vararg=0
4416 \n: .int \y
4417 .endm
4418 m x
4419 EOF
4420     # .altmacro is only used in arm asm
4421     ! enabled arm || check_as <<EOF || return 1
4422 .altmacro
4423 EOF
4424     enable gnu_as
4425     return 0
4426 }
4427
4428 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4429     nogas=:
4430     enabled_any arm aarch64 && nogas=die
4431     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4432     as_noop=-v
4433
4434     case $as_type in
4435         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4436         gcc)  gaspp_as_type=gas ;;
4437         *)    gaspp_as_type=$as_type ;;
4438     esac
4439
4440     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4441
4442     test "${as#*gas-preprocessor.pl}" != "$as" ||
4443     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4444         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4445
4446     if ! check_gas ; then
4447         as=${gas:=$as}
4448         check_gas || \
4449             $nogas "GNU assembler not found, install/update gas-preprocessor"
4450     fi
4451
4452     check_as <<EOF && enable as_func
4453 .func test
4454 .endfunc
4455 EOF
4456 fi
4457
4458 check_inline_asm inline_asm_labels '"1:\n"'
4459
4460 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4461
4462 if enabled aarch64; then
4463     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4464     # internal assembler in clang 3.3 does not support this instruction
4465     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4466     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4467
4468     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4469
4470 elif enabled alpha; then
4471
4472     check_cflags -mieee
4473
4474 elif enabled arm; then
4475
4476     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4477 float func(float a, float b){ return a+b; }
4478 EOF
4479
4480     enabled thumb && check_cflags -mthumb || check_cflags -marm
4481
4482     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4483         enable vfp_args
4484     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4485         case "${cross_prefix:-$cc}" in
4486             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4487             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4488 __asm__ (".eabi_attribute 28, 1");
4489 int main(void) { return 0; }
4490 EOF
4491         esac
4492         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4493     fi
4494
4495     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4496     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4497     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4498     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4499     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4500     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4501     enabled setend  && check_insn setend  'setend be'
4502
4503     [ $target_os = linux ] || [ $target_os = android ] ||
4504         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4505             $ARCH_EXT_LIST_ARM
4506
4507     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4508
4509     check_as <<EOF && enable as_dn_directive
4510 ra .dn d0.i16
4511 .unreq ra
4512 EOF
4513
4514     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4515
4516 elif enabled mips; then
4517
4518     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4519     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4520      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4521     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4522      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4523     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4524      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4525     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4526      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4527
4528 elif enabled parisc; then
4529
4530     if enabled gcc; then
4531         case $($cc -dumpversion) in
4532             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4533         esac
4534     fi
4535
4536 elif enabled ppc; then
4537
4538     enable local_aligned_8 local_aligned_16 local_aligned_32
4539
4540     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4541     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4542     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4543     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4544
4545     # AltiVec flags: The FSF version of GCC differs from the Apple version
4546     if enabled altivec; then
4547         check_cflags -maltivec -mabi=altivec &&
4548         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4549         check_cflags -faltivec
4550
4551         # check if our compiler supports Motorola AltiVec C API
4552         check_cc <<EOF || disable altivec
4553 $inc_altivec_h
4554 int main(void) {
4555     vector signed int v1 = (vector signed int) { 0 };
4556     vector signed int v2 = (vector signed int) { 1 };
4557     v1 = vec_add(v1, v2);
4558     return 0;
4559 }
4560 EOF
4561
4562         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4563     fi
4564
4565     if enabled vsx; then
4566         check_cflags -mvsx
4567     fi
4568 elif enabled x86; then
4569
4570     check_builtin rdtsc    intrin.h   "__rdtsc()"
4571     check_builtin mm_empty mmintrin.h "_mm_empty()"
4572
4573     enable local_aligned_8 local_aligned_16 local_aligned_32
4574
4575     # check whether EBP is available on x86
4576     # As 'i' is stored on the stack, this program will crash
4577     # if the base pointer is used to access it because the
4578     # base pointer is cleared in the inline assembly code.
4579     check_exec_crash <<EOF && enable ebp_available
4580 volatile int i=0;
4581 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4582 return i;
4583 EOF
4584
4585     # check whether EBX is available on x86
4586     check_inline_asm ebx_available '""::"b"(0)' &&
4587         check_inline_asm ebx_available '"":::"%ebx"'
4588
4589     # check whether xmm clobbers are supported
4590     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4591
4592     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4593         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4594
4595     # check whether binutils is new enough to compile SSSE3/MMXEXT
4596     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4597     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4598
4599     if ! disabled_any asm mmx yasm; then
4600         if check_cmd $yasmexe --version; then
4601             enabled x86_64 && yasm_extra="-m amd64"
4602             yasm_debug="-g dwarf2"
4603         elif check_cmd nasm -v; then
4604             yasmexe=nasm
4605             yasm_debug="-g -F dwarf"
4606             if enabled x86_64; then
4607                 case "$objformat" in
4608                     elf)   objformat=elf64 ;;
4609                     win32) objformat=win64 ;;
4610                 esac
4611             fi
4612         fi
4613
4614         YASMFLAGS="-f $objformat $yasm_extra"
4615         enabled pic               && append YASMFLAGS "-DPIC"
4616         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4617         case "$objformat" in
4618             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4619         esac
4620
4621         check_yasm "movbe ecx, [5]" && enable yasm ||
4622             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4623         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4624         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4625         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4626         check_yasm "CPU amdnop" || disable cpunop
4627     fi
4628
4629     case "$cpu" in
4630         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4631             disable fast_clz
4632         ;;
4633     esac
4634
4635 fi
4636
4637 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4638
4639 check_ldflags -Wl,--as-needed
4640 check_ldflags -Wl,-z,noexecstack
4641
4642 if check_func dlopen; then
4643     ldl=
4644 elif check_func dlopen -ldl; then
4645     ldl=-ldl
4646 fi
4647
4648 if ! disabled network; then
4649     check_func getaddrinfo $network_extralibs
4650     check_func getservbyport $network_extralibs
4651     check_func inet_aton $network_extralibs
4652
4653     check_type netdb.h "struct addrinfo"
4654     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4655     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4656     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4657     check_type poll.h "struct pollfd"
4658     check_type netinet/sctp.h "struct sctp_event_subscribe"
4659     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4660     check_type netinet/in.h "struct sockaddr_in6"
4661     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4662     check_type "sys/types.h sys/socket.h" socklen_t
4663
4664     # Prefer arpa/inet.h over winsock2
4665     if check_header arpa/inet.h ; then
4666         check_func closesocket
4667     elif check_header winsock2.h ; then
4668         check_func_headers winsock2.h closesocket -lws2 &&
4669             network_extralibs="-lws2" ||
4670         { check_func_headers winsock2.h closesocket -lws2_32 &&
4671             network_extralibs="-lws2_32"; } || disable winsock2_h network
4672         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4673
4674         check_type ws2tcpip.h socklen_t
4675         check_type ws2tcpip.h "struct addrinfo"
4676         check_type ws2tcpip.h "struct group_source_req"
4677         check_type ws2tcpip.h "struct ip_mreq_source"
4678         check_type ws2tcpip.h "struct ipv6_mreq"
4679         check_type winsock2.h "struct pollfd"
4680         check_struct winsock2.h "struct sockaddr" sa_len
4681         check_type ws2tcpip.h "struct sockaddr_in6"
4682         check_type ws2tcpip.h "struct sockaddr_storage"
4683     else
4684         disable network
4685     fi
4686 fi
4687
4688 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4689 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
4690 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4691 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4692 check_builtin sarestart signal.h "SA_RESTART"
4693 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4694
4695 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4696 check_func  ${malloc_prefix}memalign            && enable memalign
4697 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4698
4699 check_func  access
4700 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4701 check_func  fcntl
4702 check_func  fork
4703 check_func  gethrtime
4704 check_func  getopt
4705 check_func  getrusage
4706 check_func  gettimeofday
4707 check_func  gmtime_r
4708 check_func  isatty
4709 check_func  localtime_r
4710 check_func  mach_absolute_time
4711 check_func  mkstemp
4712 check_func  mmap
4713 check_func  mprotect
4714 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4715 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4716 check_func  sched_getaffinity
4717 check_func  setrlimit
4718 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4719 check_func  strerror_r
4720 check_func  sysconf
4721 check_func  sysctl
4722 check_func  usleep
4723
4724 check_func_headers conio.h kbhit
4725 check_func_headers io.h setmode
4726 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4727 check_func_headers stdlib.h getenv
4728
4729 check_func_headers windows.h CoTaskMemFree -lole32
4730 check_func_headers windows.h GetProcessAffinityMask
4731 check_func_headers windows.h GetProcessTimes
4732 check_func_headers windows.h GetSystemTimeAsFileTime
4733 check_func_headers windows.h MapViewOfFile
4734 check_func_headers windows.h PeekNamedPipe
4735 check_func_headers windows.h SetConsoleTextAttribute
4736 check_func_headers windows.h Sleep
4737 check_func_headers windows.h VirtualAlloc
4738 check_struct windows.h "CONDITION_VARIABLE" Ptr
4739 check_func_headers glob.h glob
4740 enabled xlib &&
4741     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4742
4743 check_header cl/cl.h
4744 check_header direct.h
4745 check_header dlfcn.h
4746 check_header dxva.h
4747 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4748 check_header io.h
4749 check_header libcrystalhd/libcrystalhd_if.h
4750 check_header mach/mach_time.h
4751 check_header malloc.h
4752 check_header net/udplite.h
4753 check_header poll.h
4754 check_header sys/mman.h
4755 check_header sys/param.h
4756 check_header sys/resource.h
4757 check_header sys/select.h
4758 check_header sys/time.h
4759 check_header sys/un.h
4760 check_header termios.h
4761 check_header unistd.h
4762 check_header vdpau/vdpau.h
4763 check_header vdpau/vdpau_x11.h
4764 check_header VideoDecodeAcceleration/VDADecoder.h
4765 check_header windows.h
4766 check_header X11/extensions/XvMClib.h
4767 check_header asm/types.h
4768
4769 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4770 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4771 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4772
4773 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4774
4775 if ! disabled w32threads && ! enabled pthreads; then
4776     check_func_headers "windows.h process.h" _beginthreadex &&
4777         enable w32threads || disable w32threads
4778 fi
4779
4780 # check for some common methods of building with pthread support
4781 # do this before the optional library checks as some of them require pthreads
4782 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4783     enable pthreads
4784     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4785         add_cflags -pthread
4786         add_extralibs -pthread
4787     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4788         add_cflags -pthreads
4789         add_extralibs -pthreads
4790     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4791         add_cflags -ldl -pthread
4792         add_extralibs -ldl -pthread
4793     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4794         add_extralibs -lpthreadGC2
4795     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4796         :
4797     elif ! check_func pthread_join && ! check_func pthread_create; then
4798         disable pthreads
4799     fi
4800     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4801 fi
4802
4803
4804 if enabled pthreads; then
4805   check_func pthread_cancel
4806 fi
4807
4808 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4809 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4810 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
4811
4812 check_lib math.h sin -lm && LIBM="-lm"
4813 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4814
4815 atan2f_args=2
4816 ldexpf_args=2
4817 powf_args=2
4818
4819 for func in $MATH_FUNCS; do
4820     eval check_mathfunc $func \${${func}_args:-1}
4821 done
4822
4823 # these are off by default, so fail if requested and not available
4824 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4825 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4826                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4827                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4828 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4829 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4830 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4831 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4832 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4833 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4834 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4835 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4836 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4837 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4838                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4839                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4840 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4841 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4842 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4843 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"
4844 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4845 enabled fontconfig        && enable libfontconfig
4846 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4847 enabled libfreetype       && require_libfreetype
4848 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4849 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4850 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4851                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4852                                done || die "ERROR: libgsm not found"; }
4853 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4854 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4855 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4856 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4857 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4858 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4859 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4860 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
4861                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4862                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4863                                die "ERROR: libopenjpeg not found"; }
4864 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4865 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4866 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4867 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4868 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4869 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4870 enabled libsmbclient      && { { check_pkg_config smbclient libsmbclient.h smbc_init &&
4871                                  require_pkg_config smbclient libsmbclient.h smbc_init; } ||
4872                                  require smbclient libsmbclient.h smbc_init -lsmbclient; }
4873 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4874 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4875 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4876 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4877     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4878     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4879 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4880 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4881                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4882                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4883 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4884 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4885 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4886 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4887 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4888 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4889 enabled libvpx            && {
4890     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4891                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4892     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 ||
4893                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4894     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4895     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; } }
4896 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4897 enabled libwebp           && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
4898 enabled libx264           && { { check_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4899                                  require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode; } ||
4900                                { require libx264 x264.h x264_encoder_encode -lx264 &&
4901                                  warn "using libx264 without pkg-config"; } } &&
4902                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4903                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4904 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4905                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4906                                die "ERROR: libx265 version must be >= 17."; }
4907 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4908 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4909 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4910 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4911 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4912                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4913                                die "ERROR: openal not found"; } &&
4914                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4915                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4916 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4917                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4918                                die "ERROR: opencl not found"; } &&
4919                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4920                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4921                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4922 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4923                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4924                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4925                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4926                                die "ERROR: opengl not found."
4927                              }
4928 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4929                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4930                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4931                                die "ERROR: openssl not found"; }
4932 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4933
4934 if enabled gnutls; then
4935     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4936     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4937 fi
4938
4939 # libdc1394 check
4940 if enabled libdc1394; then
4941     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4942         enable libdc1394_2; } ||
4943     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4944         enable libdc1394_1; } ||
4945     die "ERROR: No version of libdc1394 found "
4946 fi
4947 if ! disabled sdl; then
4948     SDL_CONFIG="${cross_prefix}sdl-config"
4949     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4950         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4951         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4952         enable sdl
4953     else
4954         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4955             sdl_cflags=$("${SDL_CONFIG}" --cflags)
4956             sdl_libs=$("${SDL_CONFIG}" --libs)
4957             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4958             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4959             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4960             enable sdl
4961         elif enabled sdl ; then
4962             die "ERROR: SDL not found"
4963         else
4964             disable sdl
4965         fi
4966     fi
4967 fi
4968 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4969
4970 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4971 enabled makeinfo && (makeinfo --version | \
4972                      grep -q 'makeinfo (GNU texinfo) 5' > /dev/null 2>&1) \
4973     && enable makeinfo_html || disable makeinfo_html
4974 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4975 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4976 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4977 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4978
4979 check_header linux/fb.h
4980 check_header linux/videodev.h
4981 check_header linux/videodev2.h
4982 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4983
4984 check_header sys/videoio.h
4985 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4986
4987 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4988 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4989 # w32api 3.12 had it defined wrong
4990 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4991
4992 check_type "dshow.h" IBaseFilter
4993
4994 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4995 { check_header dev/bktr/ioctl_meteor.h &&
4996   check_header dev/bktr/ioctl_bt848.h; } ||
4997 { check_header machine/ioctl_meteor.h &&
4998   check_header machine/ioctl_bt848.h; } ||
4999 { check_header dev/video/meteor/ioctl_meteor.h &&
5000   check_header dev/video/bktr/ioctl_bt848.h; } ||
5001 check_header dev/ic/bt8xx.h
5002
5003 check_header sndio.h
5004 if check_struct sys/soundcard.h audio_buf_info bytes; then
5005     enable_safe sys/soundcard.h
5006 else
5007     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5008     #include <sys/soundcard.h>
5009     audio_buf_info abc;
5010 EOF
5011 fi
5012 check_header soundcard.h
5013
5014 enabled_any alsa_indev alsa_outdev &&
5015     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5016
5017 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5018     check_func jack_port_get_latency_range -ljack
5019
5020 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5021
5022 if enabled libcdio; then
5023     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5024     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5025     die "ERROR: libcdio-paranoia not found"
5026 fi
5027
5028 enabled xlib &&
5029     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5030
5031 if ! disabled libxcb; then
5032     check_pkg_config xcb xcb/xcb.h xcb_connect || {
5033         enabled libxcb && die "ERROR: libxcb not found";
5034     } && disable x11grab && enable libxcb
5035
5036 if enabled libxcb; then
5037     disabled libxcb_shm || {
5038         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5039             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5040         } && check_header sys/shm.h && enable libxcb_shm; }
5041
5042     disabled libxcb_xfixes || {
5043         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5044             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5045         } && enable libxcb_xfixes; }
5046
5047     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags
5048     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs
5049 fi
5050 fi
5051
5052 if enabled x11grab; then
5053     enabled xlib || die "ERROR: Xlib not found"
5054     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5055     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5056 fi
5057
5058 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5059
5060 enabled dxva2api_h &&
5061     check_cc <<EOF && enable dxva2api_cobj
5062 #define _WIN32_WINNT 0x0600
5063 #define COBJMACROS
5064 #include <windows.h>
5065 #include <d3d9.h>
5066 #include <dxva2api.h>
5067 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5068 EOF
5069
5070 enabled vaapi &&
5071     check_lib va/va.h vaInitialize -lva ||
5072     disable vaapi
5073
5074 enabled vdpau &&
5075     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5076     disable vdpau
5077
5078 enabled vdpau && enabled xlib &&
5079     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5080     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5081     enable vdpau_x11
5082
5083 # Funny iconv installations are not unusual, so check it after all flags have been set
5084 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5085
5086 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5087
5088 # add some useful compiler flags if supported
5089 check_cflags -Wdeclaration-after-statement
5090 check_cflags -Wall
5091 check_cflags -Wdisabled-optimization
5092 check_cflags -Wpointer-arith
5093 check_cflags -Wredundant-decls
5094 check_cflags -Wwrite-strings
5095 check_cflags -Wtype-limits
5096 check_cflags -Wundef
5097 check_cflags -Wmissing-prototypes
5098 check_cflags -Wno-pointer-to-int-cast
5099 check_cflags -Wstrict-prototypes
5100 check_cflags -Wempty-body
5101 enabled extra_warnings && check_cflags -Winline
5102
5103 check_disable_warning(){
5104     warning_flag=-W${1#-Wno-}
5105     test_cflags $warning_flag && add_cflags $1
5106 }
5107
5108 check_disable_warning -Wno-parentheses
5109 check_disable_warning -Wno-switch
5110 check_disable_warning -Wno-format-zero-length
5111 check_disable_warning -Wno-pointer-sign
5112
5113 # add some linker flags
5114 check_ldflags -Wl,--warn-common
5115 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5116 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5117 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5118
5119 # add some strip flags
5120 # -wN '..@*' is more selective than -x, but not available everywhere.
5121 check_stripflags -wN \'..@*\' || check_stripflags -x
5122
5123 enabled neon_clobber_test &&
5124     check_ldflags -Wl,--wrap,avcodec_open2              \
5125                   -Wl,--wrap,avcodec_decode_audio4      \
5126                   -Wl,--wrap,avcodec_decode_video2      \
5127                   -Wl,--wrap,avcodec_decode_subtitle2   \
5128                   -Wl,--wrap,avcodec_encode_audio2      \
5129                   -Wl,--wrap,avcodec_encode_video2      \
5130                   -Wl,--wrap,avcodec_encode_subtitle    \
5131                   -Wl,--wrap,swr_convert                \
5132                   -Wl,--wrap,avresample_convert ||
5133     disable neon_clobber_test
5134
5135 enabled xmm_clobber_test &&
5136     check_ldflags -Wl,--wrap,avcodec_open2              \
5137                   -Wl,--wrap,avcodec_decode_audio4      \
5138                   -Wl,--wrap,avcodec_decode_video2      \
5139                   -Wl,--wrap,avcodec_decode_subtitle2   \
5140                   -Wl,--wrap,avcodec_encode_audio2      \
5141                   -Wl,--wrap,avcodec_encode_video       \
5142                   -Wl,--wrap,avcodec_encode_video2      \
5143                   -Wl,--wrap,avcodec_encode_subtitle    \
5144                   -Wl,--wrap,swr_convert                \
5145                   -Wl,--wrap,avresample_convert         \
5146                   -Wl,--wrap,sws_scale ||
5147     disable xmm_clobber_test
5148
5149 echo "X{};" > $TMPV
5150 if test_ldflags -Wl,--version-script,$TMPV; then
5151     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5152     check_cc <<EOF && enable symver_asm_label
5153 void ff_foo(void) __asm__ ("av_foo@VERSION");
5154 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5155 EOF
5156     check_cc <<EOF && enable symver_gnu_asm
5157 __asm__(".symver ff_foo,av_foo@VERSION");
5158 void ff_foo(void) {}
5159 EOF
5160 fi
5161
5162 if [ -z "$optflags" ]; then
5163     if enabled small; then
5164         optflags=$cflags_size
5165     elif enabled optimizations; then
5166         optflags=$cflags_speed
5167     else
5168         optflags=$cflags_noopt
5169     fi
5170 fi
5171
5172 check_optflags(){
5173     check_cflags "$@"
5174     enabled lto && check_ldflags "$@"
5175 }
5176
5177
5178 if enabled lto; then
5179     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5180     check_cflags  -flto
5181     check_ldflags -flto $cpuflags
5182     disable inline_asm_direct_symbol_refs
5183 fi
5184
5185 check_optflags $optflags
5186 check_optflags -fno-math-errno
5187 check_optflags -fno-signed-zeros
5188
5189 enabled ftrapv && check_cflags -ftrapv
5190
5191 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5192 int x;
5193 EOF
5194
5195
5196 if enabled icc; then
5197     # Just warnings, no remarks
5198     check_cflags -w1
5199     # -wd: Disable following warnings
5200     # 144, 167, 556: -Wno-pointer-sign
5201     # 188: enumerated type mixed with another type
5202     # 1292: attribute "foo" ignored
5203     # 1419: external declaration in primary source file
5204     # 10006: ignoring unknown option -fno-signed-zeros
5205     # 10148: ignoring unknown option -Wno-parentheses
5206     # 10156: ignoring option '-W'; no argument required
5207     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5208     # 11030: Warning unknown option --as-needed
5209     # 10156: ignoring option '-export'; no argument required
5210     check_ldflags -wd10156,11030
5211     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5212     enable ebp_available
5213     # The test above does not test linking
5214     enabled lto && disable symver_asm_label
5215     if enabled x86_32; then
5216         icc_version=$($cc -dumpversion)
5217         test ${icc_version%%.*} -ge 11 &&
5218             check_cflags -falign-stack=maintain-16-byte ||
5219             disable aligned_stack
5220     fi
5221 elif enabled ccc; then
5222     # disable some annoying warnings
5223     add_cflags -msg_disable bitnotint
5224     add_cflags -msg_disable mixfuncvoid
5225     add_cflags -msg_disable nonstandcast
5226     add_cflags -msg_disable unsupieee
5227 elif enabled gcc; then
5228     check_optflags -fno-tree-vectorize
5229     check_cflags -Werror=format-security
5230     check_cflags -Werror=implicit-function-declaration
5231     check_cflags -Werror=missing-prototypes
5232     check_cflags -Werror=return-type
5233     check_cflags -Werror=vla
5234     check_cflags -Wformat
5235     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5236 elif enabled llvm_gcc; then
5237     check_cflags -mllvm -stack-alignment=16
5238 elif enabled clang; then
5239     check_cflags -mllvm -stack-alignment=16
5240     check_cflags -Qunused-arguments
5241     check_cflags -Werror=implicit-function-declaration
5242     check_cflags -Werror=missing-prototypes
5243     check_cflags -Werror=return-type
5244 elif enabled cparser; then
5245     add_cflags -Wno-missing-variable-declarations
5246     add_cflags -Wno-empty-statement
5247 elif enabled armcc; then
5248     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5249     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5250     # 2523: use of inline assembly is deprecated
5251     add_cflags -W${armcc_opt},--diag_suppress=2523
5252     add_cflags -W${armcc_opt},--diag_suppress=1207
5253     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5254     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5255     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5256     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5257 elif enabled tms470; then
5258     add_cflags -pds=824 -pds=837
5259     disable inline_asm
5260 elif enabled pathscale; then
5261     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5262 elif enabled_any msvc icl; then
5263     enabled x86_32 && disable aligned_stack
5264     enabled_all x86_32 debug && add_cflags -Oy-
5265     enabled debug && add_ldflags -debug
5266     enable pragma_deprecated
5267     if enabled icl; then
5268         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5269         # (correctly) on icl 13.x.
5270         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5271             add_cflags -Qansi-alias
5272         # Some inline asm is not compilable in debug
5273         if enabled debug; then
5274             disable ebp_available
5275             disable ebx_available
5276         fi
5277     fi
5278     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5279     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5280 fi
5281
5282 case $as_type in
5283     clang)
5284         add_asflags -Qunused-arguments
5285     ;;
5286 esac
5287
5288 case $ld_type in
5289     clang)
5290         check_ldflags -Qunused-arguments
5291     ;;
5292 esac
5293
5294 case $target_os in
5295     osf1)
5296         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5297     ;;
5298     plan9)
5299         add_cppflags -Dmain=plan9_main
5300     ;;
5301 esac
5302
5303 enable frame_thread_encoder
5304
5305 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5306
5307 check_deps $CONFIG_LIST       \
5308            $CONFIG_EXTRA      \
5309            $HAVE_LIST         \
5310            $ALL_COMPONENTS    \
5311
5312 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"
5313
5314
5315 if test $target_os = "haiku"; then
5316     disable memalign
5317     disable posix_memalign
5318 fi
5319
5320 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5321     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5322     enable dxva2_lib
5323
5324 ! enabled_any memalign posix_memalign aligned_malloc &&
5325     enabled simd_align_16 && enable memalign_hack
5326
5327 # add_dep lib dep
5328 # -> enable ${lib}_deps_${dep}
5329 # -> add $dep to ${lib}_deps only once
5330 add_dep() {
5331     lib=$1
5332     dep=$2
5333     enabled "${lib}_deps_${dep}" && return 0
5334     enable  "${lib}_deps_${dep}"
5335     prepend "${lib}_deps" $dep
5336 }
5337
5338 # merge deps lib components
5339 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5340 merge_deps() {
5341     lib=$1
5342     shift
5343     for comp in $*; do
5344         enabled $comp || continue
5345         eval "dep=\"\$${comp}_deps\""
5346         for d in $dep; do
5347             add_dep $lib $d
5348         done
5349     done
5350 }
5351
5352 merge_deps libavfilter $FILTER_LIST
5353
5354 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5355
5356 for thread in $THREADS_LIST; do
5357     if enabled $thread; then
5358         test -n "$thread_type" &&
5359             die "ERROR: Only one thread type must be selected." ||
5360             thread_type="$thread"
5361     fi
5362 done
5363
5364 enabled zlib && add_cppflags -DZLIB_CONST
5365
5366 # conditional library dependencies, in linking order
5367 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5368 enabled aresample_filter    && prepend avfilter_deps "swresample"
5369 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5370 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5371 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5372 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5373 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5374 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5375 enabled mp_filter           && prepend avfilter_deps "avcodec"
5376 enabled pan_filter          && prepend avfilter_deps "swresample"
5377 enabled pp_filter           && prepend avfilter_deps "postproc"
5378 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5379 enabled resample_filter && prepend avfilter_deps "avresample"
5380 enabled sab_filter          && prepend avfilter_deps "swscale"
5381 enabled scale_filter    && prepend avfilter_deps "swscale"
5382 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5383 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5384 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5385
5386 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5387
5388 enabled opus_decoder    && prepend avcodec_deps "swresample"
5389
5390 expand_deps(){
5391     lib_deps=${1}_deps
5392     eval "deps=\$$lib_deps"
5393     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5394     unique $lib_deps
5395 }
5396
5397 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5398 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5399
5400 map 'expand_deps $v' $LIBRARY_LIST
5401
5402 echo "install prefix            $prefix"
5403 echo "source path               $source_path"
5404 echo "C compiler                $cc"
5405 echo "C library                 $libc_type"
5406 if test "$host_cc" != "$cc"; then
5407     echo "host C compiler           $host_cc"
5408     echo "host C library            $host_libc_type"
5409 fi
5410 echo "ARCH                      $arch ($cpu)"
5411 if test "$build_suffix" != ""; then
5412     echo "build suffix              $build_suffix"
5413 fi
5414 if test "$progs_suffix" != ""; then
5415     echo "progs suffix              $progs_suffix"
5416 fi
5417 if test "$extra_version" != ""; then
5418     echo "version string suffix     $extra_version"
5419 fi
5420 echo "big-endian                ${bigendian-no}"
5421 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5422 if enabled x86; then
5423     echo "${yasmexe}                      ${yasm-no}"
5424     echo "MMX enabled               ${mmx-no}"
5425     echo "MMXEXT enabled            ${mmxext-no}"
5426     echo "3DNow! enabled            ${amd3dnow-no}"
5427     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5428     echo "SSE enabled               ${sse-no}"
5429     echo "SSSE3 enabled             ${ssse3-no}"
5430     echo "AVX enabled               ${avx-no}"
5431     echo "XOP enabled               ${xop-no}"
5432     echo "FMA3 enabled              ${fma3-no}"
5433     echo "FMA4 enabled              ${fma4-no}"
5434     echo "i686 features enabled     ${i686-no}"
5435     echo "CMOV is fast              ${fast_cmov-no}"
5436     echo "EBX available             ${ebx_available-no}"
5437     echo "EBP available             ${ebp_available-no}"
5438 fi
5439 if enabled aarch64; then
5440     echo "NEON enabled              ${neon-no}"
5441     echo "VFP enabled               ${vfp-no}"
5442 fi
5443 if enabled arm; then
5444     echo "ARMv5TE enabled           ${armv5te-no}"
5445     echo "ARMv6 enabled             ${armv6-no}"
5446     echo "ARMv6T2 enabled           ${armv6t2-no}"
5447     echo "VFP enabled               ${vfp-no}"
5448     echo "NEON enabled              ${neon-no}"
5449     echo "THUMB enabled             ${thumb-no}"
5450 fi
5451 if enabled mips; then
5452     echo "MIPS FPU enabled          ${mipsfpu-no}"
5453     echo "MIPS32R2 enabled          ${mips32r2-no}"
5454     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5455     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5456 fi
5457 if enabled ppc; then
5458     echo "AltiVec enabled           ${altivec-no}"
5459     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5460     echo "PPC VSX optimizations     ${vsx-no}"
5461     echo "dcbzl available           ${dcbzl-no}"
5462 fi
5463 echo "debug symbols             ${debug-no}"
5464 echo "strip symbols             ${stripping-no}"
5465 echo "optimize for size         ${small-no}"
5466 echo "optimizations             ${optimizations-no}"
5467 echo "static                    ${static-no}"
5468 echo "shared                    ${shared-no}"
5469 echo "postprocessing support    ${postproc-no}"
5470 echo "new filter support        ${avfilter-no}"
5471 echo "network support           ${network-no}"
5472 echo "threading support         ${thread_type-no}"
5473 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5474 echo "SDL support               ${sdl-no}"
5475 echo "opencl enabled            ${opencl-no}"
5476 echo "texi2html enabled         ${texi2html-no}"
5477 echo "perl enabled              ${perl-no}"
5478 echo "pod2man enabled           ${pod2man-no}"
5479 echo "makeinfo enabled          ${makeinfo-no}"
5480 echo "makeinfo supports HTML    ${makeinfo_html-no}"
5481 test -n "$random_seed" &&
5482     echo "random seed               ${random_seed}"
5483 echo
5484
5485 echo "External libraries:"
5486 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5487 echo
5488
5489 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5490     echo "Enabled ${type}s:"
5491     eval list=\$$(toupper $type)_LIST
5492     print_enabled '_*' $list | print_3_columns
5493     echo
5494 done
5495
5496 license="LGPL version 2.1 or later"
5497 if enabled nonfree; then
5498     license="nonfree and unredistributable"
5499 elif enabled gplv3; then
5500     license="GPL version 3 or later"
5501 elif enabled lgplv3; then
5502     license="LGPL version 3 or later"
5503 elif enabled gpl; then
5504     license="GPL version 2 or later"
5505 fi
5506
5507 echo "License: $license"
5508
5509 echo "Creating config.mak, config.h, and doc/config.texi..."
5510
5511 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5512
5513 enabled stripping || strip="echo skipping strip"
5514
5515 config_files="$TMPH config.mak doc/config.texi"
5516
5517 cat > config.mak <<EOF
5518 # Automatically generated by configure - do not modify!
5519 ifndef FFMPEG_CONFIG_MAK
5520 FFMPEG_CONFIG_MAK=1
5521 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5522 prefix=$prefix
5523 LIBDIR=\$(DESTDIR)$libdir
5524 SHLIBDIR=\$(DESTDIR)$shlibdir
5525 INCDIR=\$(DESTDIR)$incdir
5526 BINDIR=\$(DESTDIR)$bindir
5527 DATADIR=\$(DESTDIR)$datadir
5528 DOCDIR=\$(DESTDIR)$docdir
5529 MANDIR=\$(DESTDIR)$mandir
5530 SRC_PATH=$source_path
5531 ifndef MAIN_MAKEFILE
5532 SRC_PATH:=\$(SRC_PATH:.%=..%)
5533 endif
5534 CC_IDENT=$cc_ident
5535 ARCH=$arch
5536 INTRINSICS=$intrinsics
5537 CC=$cc
5538 CXX=$cxx
5539 AS=$as
5540 LD=$ld
5541 DEPCC=$dep_cc
5542 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5543 DEPAS=$as
5544 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5545 YASM=$yasmexe
5546 DEPYASM=$yasmexe
5547 AR=$ar
5548 ARFLAGS=$arflags
5549 AR_O=$ar_o
5550 RANLIB=$ranlib
5551 STRIP=$strip
5552 CP=cp -p
5553 LN_S=$ln_s
5554 CPPFLAGS=$CPPFLAGS
5555 CFLAGS=$CFLAGS
5556 CXXFLAGS=$CXXFLAGS
5557 ASFLAGS=$ASFLAGS
5558 AS_C=$AS_C
5559 AS_O=$AS_O
5560 CC_C=$CC_C
5561 CC_E=$CC_E
5562 CC_O=$CC_O
5563 CXX_C=$CXX_C
5564 CXX_O=$CXX_O
5565 LD_O=$LD_O
5566 LD_LIB=$LD_LIB
5567 LD_PATH=$LD_PATH
5568 DLLTOOL=$dlltool
5569 WINDRES=$windres
5570 DEPWINDRES=$dep_cc
5571 DOXYGEN=$doxygen
5572 LDFLAGS=$LDFLAGS
5573 LDEXEFLAGS=$LDEXEFLAGS
5574 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5575 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5576 YASMFLAGS=$YASMFLAGS
5577 BUILDSUF=$build_suffix
5578 PROGSSUF=$progs_suffix
5579 FULLNAME=$FULLNAME
5580 LIBPREF=$LIBPREF
5581 LIBSUF=$LIBSUF
5582 LIBNAME=$LIBNAME
5583 SLIBPREF=$SLIBPREF
5584 SLIBSUF=$SLIBSUF
5585 EXESUF=$EXESUF
5586 EXTRA_VERSION=$extra_version
5587 CCDEP=$CCDEP
5588 CXXDEP=$CXXDEP
5589 CCDEP_FLAGS=$CCDEP_FLAGS
5590 ASDEP=$ASDEP
5591 ASDEP_FLAGS=$ASDEP_FLAGS
5592 CC_DEPFLAGS=$CC_DEPFLAGS
5593 AS_DEPFLAGS=$AS_DEPFLAGS
5594 HOSTCC=$host_cc
5595 HOSTLD=$host_ld
5596 HOSTCFLAGS=$host_cflags
5597 HOSTCPPFLAGS=$host_cppflags
5598 HOSTEXESUF=$HOSTEXESUF
5599 HOSTLDFLAGS=$host_ldflags
5600 HOSTLIBS=$host_libs
5601 DEPHOSTCC=$host_cc
5602 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5603 HOSTCCDEP=$HOSTCCDEP
5604 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5605 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5606 HOSTCC_C=$HOSTCC_C
5607 HOSTCC_O=$HOSTCC_O
5608 HOSTLD_O=$HOSTLD_O
5609 TARGET_EXEC=$target_exec $target_exec_args
5610 TARGET_PATH=$target_path
5611 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5612 CFLAGS-ffplay=$sdl_cflags
5613 ZLIB=$($ldflags_filter -lz)
5614 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5615 EXTRALIBS=$extralibs
5616 COMPAT_OBJS=$compat_objs
5617 EXEOBJS=$exeobjs
5618 INSTALL=$install
5619 LIBTARGET=${LIBTARGET}
5620 SLIBNAME=${SLIBNAME}
5621 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5622 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5623 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5624 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5625 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5626 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5627 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5628 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5629 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5630 NOREDZONE_FLAGS=$noredzone_flags
5631 EOF
5632
5633 get_version(){
5634     lcname=lib${1}
5635     name=$(toupper $lcname)
5636     file=$source_path/$lcname/version.h
5637     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5638     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5639     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5640     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5641     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5642     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5643 }
5644
5645 map 'get_version $v' $LIBRARY_LIST
5646
5647 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5648
5649 print_program_libs(){
5650     eval "program_libs=\$${1}_libs"
5651     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5652 }
5653
5654 map 'print_program_libs $v' $PROGRAM_LIST
5655
5656 cat > $TMPH <<EOF
5657 /* Automatically generated by configure - do not modify! */
5658 #ifndef FFMPEG_CONFIG_H
5659 #define FFMPEG_CONFIG_H
5660 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5661 #define FFMPEG_LICENSE "$(c_escape $license)"
5662 #define CONFIG_THIS_YEAR 2014
5663 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5664 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5665 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5666 #define av_restrict $_restrict
5667 #define EXTERN_PREFIX "${extern_prefix}"
5668 #define EXTERN_ASM ${extern_prefix}
5669 #define BUILDSUF "$build_suffix"
5670 #define SLIBSUF "$SLIBSUF"
5671 #define HAVE_MMX2 HAVE_MMXEXT
5672 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5673 EOF
5674
5675 test -n "$assert_level" &&
5676     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5677
5678 test -n "$malloc_prefix" &&
5679     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5680
5681 if enabled yasm; then
5682     append config_files $TMPASM
5683     printf '' >$TMPASM
5684 fi
5685
5686 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5687
5688
5689 mkdir -p doc
5690 echo "@c auto-generated by configure" > doc/config.texi
5691
5692 print_config ARCH_   "$config_files" $ARCH_LIST
5693 print_config HAVE_   "$config_files" $HAVE_LIST
5694 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5695                                      $CONFIG_EXTRA      \
5696                                      $ALL_COMPONENTS    \
5697
5698 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5699 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5700
5701 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5702 cp_if_changed $TMPH config.h
5703 touch .config
5704
5705 enabled yasm && cp_if_changed $TMPASM config.asm
5706
5707 cat > $TMPH <<EOF
5708 /* Generated by ffconf */
5709 #ifndef AVUTIL_AVCONFIG_H
5710 #define AVUTIL_AVCONFIG_H
5711 EOF
5712
5713 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5714
5715 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5716
5717 cp_if_changed $TMPH libavutil/avconfig.h
5718
5719 if test -n "$WARNINGS"; then
5720     printf "\n$WARNINGS"
5721     enabled fatal_warnings && exit 1
5722 fi
5723
5724 # build pkg-config files
5725
5726 lib_version(){
5727     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5728 }
5729
5730 pkgconfig_generate(){
5731     name=$1
5732     shortname=${name#lib}${build_suffix}
5733     comment=$2
5734     version=$3
5735     libs=$4
5736     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5737     requires=${requires%, }
5738     enabled ${name#lib} || return 0
5739     mkdir -p $name
5740     cat <<EOF > $name/$name${build_suffix}.pc
5741 prefix=$prefix
5742 exec_prefix=\${prefix}
5743 libdir=$libdir
5744 includedir=$incdir
5745
5746 Name: $name
5747 Description: $comment
5748 Version: $version
5749 Requires: $(enabled shared || echo $requires)
5750 Requires.private: $(enabled shared && echo $requires)
5751 Conflicts:
5752 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5753 Libs.private: $(enabled shared && echo $libs)
5754 Cflags: -I\${includedir}
5755 EOF
5756
5757 mkdir -p doc/examples/pc-uninstalled
5758 includedir=${source_path}
5759 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5760     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5761 prefix=
5762 exec_prefix=
5763 libdir=\${pcfiledir}/../../../$name
5764 includedir=${includedir}
5765
5766 Name: $name
5767 Description: $comment
5768 Version: $version
5769 Requires: $requires
5770 Conflicts:
5771 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5772 Cflags: -I\${includedir}
5773 EOF
5774 }
5775
5776 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
5777 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5778 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5779 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5780 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5781 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5782 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
5783 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5784 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"