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 [LIBDIR]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
  91   --enable-rpath           use rpath to allow installing libraries in paths
  92                            not part of the dynamic linker search path
  93                            use rpath when linking programs [USE WITH CARE]
  94
  95 Licensing options:
  96   --enable-gpl             allow use of GPL code, the resulting libs
  97                            and binaries will be under GPL [no]
  98   --enable-version3        upgrade (L)GPL to version 3 [no]
  99   --enable-nonfree         allow use of nonfree code, the resulting libs
 100                            and binaries will be unredistributable [no]
 101
 102 Configuration options:
 103   --disable-static         do not build static libraries [no]
 104   --enable-shared          build shared libraries [no]
 105   --enable-small           optimize for size instead of speed
 106   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 107   --enable-gray            enable full grayscale support (slower color)
 108   --disable-swscale-alpha  disable alpha channel support in swscale
 109   --disable-all            disable building components, libraries and programs
 110   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 111   --enable-raise-major     increase major version numbers in sonames [no]
 112
 113 Program options:
 114   --disable-programs       do not build command line programs
 115   --disable-ffmpeg         disable ffmpeg build
 116   --disable-ffplay         disable ffplay build
 117   --disable-ffprobe        disable ffprobe build
 118   --disable-ffserver       disable ffserver build
 119
 120 Documentation options:
 121   --disable-doc            do not build documentation
 122   --disable-htmlpages      do not build HTML documentation pages
 123   --disable-manpages       do not build man documentation pages
 124   --disable-podpages       do not build POD documentation pages
 125   --disable-txtpages       do not build text documentation pages
 126
 127 Component options:
 128   --disable-avdevice       disable libavdevice build
 129   --disable-avcodec        disable libavcodec build
 130   --disable-avformat       disable libavformat build
 131   --disable-avutil         disable libavutil build
 132   --disable-swresample     disable libswresample build
 133   --disable-swscale        disable libswscale build
 134   --disable-postproc       disable libpostproc build
 135   --disable-avfilter       disable libavfilter build
 136   --enable-avresample      enable libavresample build [no]
 137   --disable-pthreads       disable pthreads [autodetect]
 138   --disable-w32threads     disable Win32 threads [autodetect]
 139   --disable-os2threads     disable OS/2 threads [autodetect]
 140   --disable-network        disable network support [no]
 141   --disable-dct            disable DCT code
 142   --disable-dwt            disable DWT code
 143   --disable-error-resilience disable error resilience code
 144   --disable-lsp            disable LSP code
 145   --disable-lzo            disable LZO decoder code
 146   --disable-mdct           disable MDCT code
 147   --disable-rdft           disable RDFT code
 148   --disable-fft            disable FFT code
 149   --disable-faan           disable floating point AAN (I)DCT code
 150   --disable-pixelutils     disable pixel utils in libavutil
 151
 152 Hardware accelerators:
 153   --disable-d3d11va        disable D3D11VA code [autodetect]
 154   --disable-dxva2          disable DXVA2 code [autodetect]
 155   --disable-vaapi          disable VAAPI code [autodetect]
 156   --disable-vda            disable VDA code [autodetect]
 157   --disable-vdpau          disable VDPAU code [autodetect]
 158
 159 Individual component options:
 160   --disable-everything     disable all components listed below
 161   --disable-encoder=NAME   disable encoder NAME
 162   --enable-encoder=NAME    enable encoder NAME
 163   --disable-encoders       disable all encoders
 164   --disable-decoder=NAME   disable decoder NAME
 165   --enable-decoder=NAME    enable decoder NAME
 166   --disable-decoders       disable all decoders
 167   --disable-hwaccel=NAME   disable hwaccel NAME
 168   --enable-hwaccel=NAME    enable hwaccel NAME
 169   --disable-hwaccels       disable all hwaccels
 170   --disable-muxer=NAME     disable muxer NAME
 171   --enable-muxer=NAME      enable muxer NAME
 172   --disable-muxers         disable all muxers
 173   --disable-demuxer=NAME   disable demuxer NAME
 174   --enable-demuxer=NAME    enable demuxer NAME
 175   --disable-demuxers       disable all demuxers
 176   --enable-parser=NAME     enable parser NAME
 177   --disable-parser=NAME    disable parser NAME
 178   --disable-parsers        disable all parsers
 179   --enable-bsf=NAME        enable bitstream filter NAME
 180   --disable-bsf=NAME       disable bitstream filter NAME
 181   --disable-bsfs           disable all bitstream filters
 182   --enable-protocol=NAME   enable protocol NAME
 183   --disable-protocol=NAME  disable protocol NAME
 184   --disable-protocols      disable all protocols
 185   --enable-indev=NAME      enable input device NAME
 186   --disable-indev=NAME     disable input device NAME
 187   --disable-indevs         disable input devices
 188   --enable-outdev=NAME     enable output device NAME
 189   --disable-outdev=NAME    disable output device NAME
 190   --disable-outdevs        disable output devices
 191   --disable-devices        disable all devices
 192   --enable-filter=NAME     enable filter NAME
 193   --disable-filter=NAME    disable filter NAME
 194   --disable-filters        disable all filters
 195
 196 External library support:
 197   --enable-avisynth        enable reading of AviSynth script files [no]
 198   --disable-bzlib          disable bzlib [autodetect]
 199   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
 200   --enable-frei0r          enable frei0r video filtering [no]
 201   --enable-gnutls          enable gnutls, needed for https support
 202                            if openssl is not used [no]
 203   --disable-iconv          disable iconv [autodetect]
 204   --enable-ladspa          enable LADSPA audio filtering [no]
 205   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 206   --enable-libass          enable libass subtitles rendering,
 207                            needed for subtitles and ass filter [no]
 208   --enable-libbluray       enable BluRay reading using libbluray [no]
 209   --enable-libbs2b         enable bs2b DSP library [no]
 210   --enable-libcaca         enable textual display using libcaca [no]
 211   --enable-libcelt         enable CELT decoding via libcelt [no]
 212   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 213   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 214                            and libraw1394 [no]
 215   --enable-libdcadec       enable DCA decoding via libdcadec [no]
 216   --enable-libfaac         enable AAC encoding via libfaac [no]
 217   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 218   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 219   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 220   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 221   --enable-libgme          enable Game Music Emu via libgme [no]
 222   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 223   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 224   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 225   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 226   --enable-libmfx          enable HW acceleration through libmfx
 227   --enable-libmodplug      enable ModPlug via libmodplug [no]
 228   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 229   --enable-libnut          enable NUT (de)muxing via libnut,
 230                            native (de)muxer exists [no]
 231   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 232   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 233   --enable-libopencv       enable video filtering via libopencv [no]
 234   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 235   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 236   --enable-libopus         enable Opus de/encoding via libopus [no]
 237   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 238   --enable-libquvi         enable quvi input via libquvi [no]
 239   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 240   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 241   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 242   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 243   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 244   --enable-libsoxr         enable Include libsoxr resampling [no]
 245   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 246   --enable-libssh          enable SFTP protocol via libssh [no]
 247   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 248   --enable-libtheora       enable Theora encoding via libtheora [no]
 249   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 250   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 251   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 252   --enable-libvidstab      enable video stabilization using vid.stab [no]
 253   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 254   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 255   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 256                            native implementation exists [no]
 257   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 258   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 259   --enable-libwebp         enable WebP encoding via libwebp [no]
 260   --enable-libx264         enable H.264 encoding via x264 [no]
 261   --enable-libx265         enable HEVC encoding via x265 [no]
 262   --enable-libxavs         enable AVS encoding via xavs [no]
 263   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 264   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 265   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 266   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 267   --enable-libxvid         enable Xvid encoding via xvidcore,
 268                            native MPEG-4/Xvid encoder exists [no]
 269   --enable-libzmq          enable message passing via libzmq [no]
 270   --enable-libzvbi         enable teletext support via libzvbi [no]
 271   --disable-lzma           disable lzma [autodetect]
 272   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
 273   --enable-mmal            enable decoding via MMAL [no]
 274   --enable-nvenc           enable NVIDIA NVENC support [no]
 275   --enable-openal          enable OpenAL 1.1 capture support [no]
 276   --enable-opencl          enable OpenCL code
 277   --enable-opengl          enable OpenGL rendering [no]
 278   --enable-openssl         enable openssl, needed for https support
 279                            if gnutls is not used [no]
 280   --disable-sdl            disable sdl [autodetect]
 281   --disable-securetransport disable Secure Transport, needed for TLS support
 282                            on OSX if openssl and gnutls are not used [autodetect]
 283   --enable-x11grab         enable X11 grabbing (legacy) [no]
 284   --disable-xlib           disable xlib [autodetect]
 285   --disable-zlib           disable zlib [autodetect]
 286
 287 Toolchain options:
 288   --arch=ARCH              select architecture [$arch]
 289   --cpu=CPU                select the minimum required CPU (affects
 290                            instruction selection, may crash on older CPUs)
 291   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 292   --progs-suffix=SUFFIX    program name suffix []
 293   --enable-cross-compile   assume a cross-compiler is used
 294   --sysroot=PATH           root of cross-build tree
 295   --sysinclude=PATH        location of cross-build system headers
 296   --target-os=OS           compiler targets OS [$target_os]
 297   --target-exec=CMD        command to run executables on target
 298   --target-path=DIR        path to view of build directory on target
 299   --target-samples=DIR     path to samples directory on target
 300   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 301   --toolchain=NAME         set tool defaults according to NAME
 302   --nm=NM                  use nm tool NM [$nm_default]
 303   --ar=AR                  use archive tool AR [$ar_default]
 304   --as=AS                  use assembler AS [$as_default]
 305   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 306   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 307   --cc=CC                  use C compiler CC [$cc_default]
 308   --cxx=CXX                use C compiler CXX [$cxx_default]
 309   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 310   --ld=LD                  use linker LD [$ld_default]
 311   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 312   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 313   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 314   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 315   --host-cc=HOSTCC         use host C compiler HOSTCC
 316   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 317   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 318   --host-ld=HOSTLD         use host linker HOSTLD
 319   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 320   --host-libs=HLIBS        use libs HLIBS when linking for host
 321   --host-os=OS             compiler host OS [$target_os]
 322   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 323   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 324   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 325   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 326   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 327   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 328   --extra-version=STRING   version string suffix []
 329   --optflags=OPTFLAGS      override optimization-related compiler flags
 330   --build-suffix=SUFFIX    library name suffix []
 331   --enable-pic             build position-independent code
 332   --enable-thumb           compile for Thumb instruction set
 333   --enable-lto             use link-time optimization
 334   --env="ENV=override"     override the environment variables
 335
 336 Advanced options (experts only):
 337   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 338   --disable-symver         disable symbol versioning
 339   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 340   --disable-safe-bitstream-reader
 341                            disable buffer boundary checking in bitreaders
 342                            (faster, but may crash)
 343   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 344   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 345
 346 Optimization options (experts only):
 347   --disable-asm            disable all assembly optimizations
 348   --disable-altivec        disable AltiVec optimizations
 349   --disable-vsx            disable VSX optimizations
 350   --disable-power8         disable POWER8 optimizations
 351   --disable-amd3dnow       disable 3DNow! optimizations
 352   --disable-amd3dnowext    disable 3DNow! extended optimizations
 353   --disable-mmx            disable MMX optimizations
 354   --disable-mmxext         disable MMXEXT optimizations
 355   --disable-sse            disable SSE optimizations
 356   --disable-sse2           disable SSE2 optimizations
 357   --disable-sse3           disable SSE3 optimizations
 358   --disable-ssse3          disable SSSE3 optimizations
 359   --disable-sse4           disable SSE4 optimizations
 360   --disable-sse42          disable SSE4.2 optimizations
 361   --disable-avx            disable AVX optimizations
 362   --disable-xop            disable XOP optimizations
 363   --disable-fma3           disable FMA3 optimizations
 364   --disable-fma4           disable FMA4 optimizations
 365   --disable-avx2           disable AVX2 optimizations
 366   --disable-armv5te        disable armv5te optimizations
 367   --disable-armv6          disable armv6 optimizations
 368   --disable-armv6t2        disable armv6t2 optimizations
 369   --disable-vfp            disable VFP optimizations
 370   --disable-neon           disable NEON optimizations
 371   --disable-inline-asm     disable use of inline assembly
 372   --disable-yasm           disable use of nasm/yasm assembly
 373   --disable-mips32r5       disable MIPS32R5 optimizations
 374   --disable-mips64r6       disable MIPS64R6 optimizations
 375   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 376   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 377   --disable-msa            disable MSA optimizations
 378   --disable-mipsfpu        disable floating point MIPS optimizations
 379   --disable-mmi            disable Loongson SIMD optimizations
 380   --disable-fast-unaligned consider unaligned accesses slow
 381
 382 Developer options (useful when working on FFmpeg itself):
 383   --disable-debug          disable debugging symbols
 384   --enable-debug=LEVEL     set the debug level [$debuglevel]
 385   --disable-optimizations  disable compiler optimizations
 386   --enable-extra-warnings  enable more compiler warnings
 387   --disable-stripping      disable stripping of executables and shared libraries
 388   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 389                            2 causes a slowdown at runtime.
 390   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 391   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 392                            leaks and errors, using the specified valgrind binary.
 393                            Cannot be combined with --target-exec
 394   --enable-ftrapv          Trap arithmetic overflows
 395   --samples=PATH           location of test samples for FATE, if not set use
 396                            \$FATE_SAMPLES at make invocation time.
 397   --enable-neon-clobber-test check NEON registers for clobbering (should be
 398                            used only for debugging purposes)
 399   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 400                            should be used only for debugging purposes)
 401   --enable-random          randomly enable/disable components
 402   --disable-random
 403   --enable-random=LIST     randomly enable/disable specific components or
 404   --disable-random=LIST    component groups. LIST is a comma-separated list
 405                            of NAME[:PROB] entries where NAME is a component
 406                            (group) and PROB the probability associated with
 407                            NAME (default 0.5).
 408   --random-seed=VALUE      seed value for --enable/disable-random
 409   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 410                            (only applies to --disable-optimizations builds)
 411
 412 NOTE: Object files are built at the place where configure is launched.
 413 EOF
 414   exit 0
 415 }
 416
 417 quotes='""'
 418
 419 log(){
 420     echo "$@" >> $logfile
 421 }
 422
 423 log_file(){
 424     log BEGIN $1
 425     pr -n -t $1 >> $logfile
 426     log END $1
 427 }
 428
 429 echolog(){
 430     log "$@"
 431     echo "$@"
 432 }
 433
 434 warn(){
 435     log "WARNING: $*"
 436     WARNINGS="${WARNINGS}WARNING: $*\n"
 437 }
 438
 439 die(){
 440     echolog "$@"
 441     cat <<EOF
 442
 443 If you think configure made a mistake, make sure you are using the latest
 444 version from Git.  If the latest version fails, report the problem to the
 445 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 446 EOF
 447     if disabled logging; then
 448         cat <<EOF
 449 Rerun configure with logging enabled (do not use --disable-logging), and
 450 include the log this produces with your report.
 451 EOF
 452     else
 453         cat <<EOF
 454 Include the log file "$logfile" produced by configure as this will help
 455 solve the problem.
 456 EOF
 457     fi
 458     exit 1
 459 }
 460
 461 # Avoid locale weirdness, besides we really just want to translate ASCII.
 462 toupper(){
 463     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 464 }
 465
 466 tolower(){
 467     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 468 }
 469
 470 c_escape(){
 471     echo "$*" | sed 's/["\\]/\\\0/g'
 472 }
 473
 474 sh_quote(){
 475     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 476     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 477     echo "$v"
 478 }
 479
 480 cleanws(){
 481     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 482 }
 483
 484 filter(){
 485     pat=$1
 486     shift
 487     for v; do
 488         eval "case $v in $pat) echo $v ;; esac"
 489     done
 490 }
 491
 492 filter_out(){
 493     pat=$1
 494     shift
 495     for v; do
 496         eval "case $v in $pat) ;; *) echo $v ;; esac"
 497     done
 498 }
 499
 500 map(){
 501     m=$1
 502     shift
 503     for v; do eval $m; done
 504 }
 505
 506 add_suffix(){
 507     suffix=$1
 508     shift
 509     for v; do echo ${v}${suffix}; done
 510 }
 511
 512 set_all(){
 513     value=$1
 514     shift
 515     for var in $*; do
 516         eval $var=$value
 517     done
 518 }
 519
 520 set_weak(){
 521     value=$1
 522     shift
 523     for var; do
 524         eval : \${$var:=$value}
 525     done
 526 }
 527
 528 sanitize_var_name(){
 529     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 530 }
 531
 532 set_safe(){
 533     var=$1
 534     shift
 535     eval $(sanitize_var_name "$var")='$*'
 536 }
 537
 538 get_safe(){
 539     eval echo \$$(sanitize_var_name "$1")
 540 }
 541
 542 pushvar(){
 543     for pvar in $*; do
 544         eval level=\${${pvar}_level:=0}
 545         eval ${pvar}_${level}="\$$pvar"
 546         eval ${pvar}_level=$(($level+1))
 547     done
 548 }
 549
 550 popvar(){
 551     for pvar in $*; do
 552         eval level=\${${pvar}_level:-0}
 553         test $level = 0 && continue
 554         eval level=$(($level-1))
 555         eval $pvar="\${${pvar}_${level}}"
 556         eval ${pvar}_level=$level
 557         eval unset ${pvar}_${level}
 558     done
 559 }
 560
 561 enable(){
 562     set_all yes $*
 563 }
 564
 565 disable(){
 566     set_all no $*
 567 }
 568
 569 enable_weak(){
 570     set_weak yes $*
 571 }
 572
 573 disable_weak(){
 574     set_weak no $*
 575 }
 576
 577 enable_safe(){
 578     for var; do
 579         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 580     done
 581 }
 582
 583 disable_safe(){
 584     for var; do
 585         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 586     done
 587 }
 588
 589 do_enable_deep(){
 590     for var; do
 591         enabled $var && continue
 592         eval sel="\$${var}_select"
 593         eval sgs="\$${var}_suggest"
 594         pushvar var sgs
 595         enable_deep $sel
 596         popvar sgs
 597         enable_deep_weak $sgs
 598         popvar var
 599     done
 600 }
 601
 602 enable_deep(){
 603     do_enable_deep $*
 604     enable $*
 605 }
 606
 607 enable_deep_weak(){
 608     for var; do
 609         disabled $var && continue
 610         pushvar var
 611         do_enable_deep $var
 612         popvar var
 613         enable_weak $var
 614     done
 615 }
 616
 617 enabled(){
 618     test "${1#!}" = "$1" && op== || op=!=
 619     eval test "x\$${1#!}" $op "xyes"
 620 }
 621
 622 disabled(){
 623     test "${1#!}" = "$1" && op== || op=!=
 624     eval test "x\$${1#!}" $op "xno"
 625 }
 626
 627 enabled_all(){
 628     for opt; do
 629         enabled $opt || return 1
 630     done
 631 }
 632
 633 disabled_all(){
 634     for opt; do
 635         disabled $opt || return 1
 636     done
 637 }
 638
 639 enabled_any(){
 640     for opt; do
 641         enabled $opt && return 0
 642     done
 643 }
 644
 645 disabled_any(){
 646     for opt; do
 647         disabled $opt && return 0
 648     done
 649     return 1
 650 }
 651
 652 set_default(){
 653     for opt; do
 654         eval : \${$opt:=\$${opt}_default}
 655     done
 656 }
 657
 658 is_in(){
 659     value=$1
 660     shift
 661     for var in $*; do
 662         [ $var = $value ] && return 0
 663     done
 664     return 1
 665 }
 666
 667 do_check_deps(){
 668     for cfg; do
 669         cfg="${cfg#!}"
 670         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 671         disabled ${cfg}_checking && continue
 672         enable ${cfg}_checking
 673         append allopts $cfg
 674
 675         eval dep_all="\$${cfg}_deps"
 676         eval dep_any="\$${cfg}_deps_any"
 677         eval dep_sel="\$${cfg}_select"
 678         eval dep_sgs="\$${cfg}_suggest"
 679         eval dep_ifa="\$${cfg}_if"
 680         eval dep_ifn="\$${cfg}_if_any"
 681
 682         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 683         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 684         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 685
 686         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 687         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 688         enabled_all  $dep_all || disable $cfg
 689         enabled_any  $dep_any || disable $cfg
 690         disabled_any $dep_sel && disable $cfg
 691
 692         if enabled $cfg; then
 693             enable_deep $dep_sel
 694             enable_deep_weak $dep_sgs
 695         fi
 696
 697         disable ${cfg}_checking
 698     done
 699 }
 700
 701 check_deps(){
 702     unset allopts
 703
 704     do_check_deps "$@"
 705
 706     for cfg in $allopts; do
 707         enabled $cfg || continue
 708         eval dep_extralibs="\$${cfg}_extralibs"
 709         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 710     done
 711 }
 712
 713 print_config(){
 714     pfx=$1
 715     files=$2
 716     shift 2
 717     map 'eval echo "$v \${$v:-no}"' "$@" |
 718     awk "BEGIN { split(\"$files\", files) }
 719         {
 720             c = \"$pfx\" toupper(\$1);
 721             v = \$2;
 722             sub(/yes/, 1, v);
 723             sub(/no/,  0, v);
 724             for (f in files) {
 725                 file = files[f];
 726                 if (file ~ /\\.h\$/) {
 727                     printf(\"#define %s %d\\n\", c, v) >>file;
 728                 } else if (file ~ /\\.asm\$/) {
 729                     printf(\"%%define %s %d\\n\", c, v) >>file;
 730                 } else if (file ~ /\\.mak\$/) {
 731                     n = -v ? \"\" : \"!\";
 732                     printf(\"%s%s=yes\\n\", n, c) >>file;
 733                 } else if (file ~ /\\.texi\$/) {
 734                     pre = -v ? \"\" : \"@c \";
 735                     yesno = \$2;
 736                     c2 = tolower(c);
 737                     gsub(/_/, \"-\", c2);
 738                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 739                 }
 740             }
 741         }"
 742 }
 743
 744 print_enabled(){
 745     suf=$1
 746     shift
 747     for v; do
 748         enabled $v && printf "%s\n" ${v%$suf};
 749     done
 750 }
 751
 752 append(){
 753     var=$1
 754     shift
 755     eval "$var=\"\$$var $*\""
 756 }
 757
 758 prepend(){
 759     var=$1
 760     shift
 761     eval "$var=\"$* \$$var\""
 762 }
 763
 764 unique(){
 765     var=$1
 766     uniq_list=""
 767     for tok in $(eval echo \$$var); do
 768         uniq_list="$(filter_out $tok $uniq_list) $tok"
 769     done
 770     eval "$var=\"${uniq_list}\""
 771 }
 772
 773 add_cppflags(){
 774     append CPPFLAGS "$@"
 775 }
 776
 777 add_cflags(){
 778     append CFLAGS $($cflags_filter "$@")
 779 }
 780
 781 add_cxxflags(){
 782     append CXXFLAGS $($cflags_filter "$@")
 783 }
 784
 785 add_asflags(){
 786     append ASFLAGS $($asflags_filter "$@")
 787 }
 788
 789 add_ldflags(){
 790     append LDFLAGS $($ldflags_filter "$@")
 791 }
 792
 793 add_ldexeflags(){
 794     append LDEXEFLAGS $($ldflags_filter "$@")
 795 }
 796
 797 add_ldlibflags(){
 798     append LDLIBFLAGS $($ldflags_filter "$@")
 799 }
 800
 801 add_stripflags(){
 802     append ASMSTRIPFLAGS "$@"
 803 }
 804
 805 add_extralibs(){
 806     prepend extralibs $($ldflags_filter "$@")
 807 }
 808
 809 add_host_cppflags(){
 810     append host_cppflags "$@"
 811 }
 812
 813 add_host_cflags(){
 814     append host_cflags $($host_cflags_filter "$@")
 815 }
 816
 817 add_host_ldflags(){
 818     append host_ldflags $($host_ldflags_filter "$@")
 819 }
 820
 821 add_compat(){
 822     append compat_objs $1
 823     shift
 824     map 'add_cppflags -D$v' "$@"
 825 }
 826
 827 check_cmd(){
 828     log "$@"
 829     "$@" >> $logfile 2>&1
 830 }
 831
 832 check_stat(){
 833     log check_stat "$@"
 834     stat "$1" >> $logfile 2>&1
 835 }
 836
 837 cc_o(){
 838     eval printf '%s\\n' $CC_O
 839 }
 840
 841 cc_e(){
 842     eval printf '%s\\n' $CC_E
 843 }
 844
 845 check_cc(){
 846     log check_cc "$@"
 847     cat > $TMPC
 848     log_file $TMPC
 849     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 850 }
 851
 852 check_cxx(){
 853     log check_cxx "$@"
 854     cat > $TMPCPP
 855     log_file $TMPCPP
 856     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 857 }
 858
 859 check_oc(){
 860     log check_oc "$@"
 861     cat > $TMPM
 862     log_file $TMPM
 863     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 864 }
 865
 866 check_cpp(){
 867     log check_cpp "$@"
 868     cat > $TMPC
 869     log_file $TMPC
 870     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 871 }
 872
 873 as_o(){
 874     eval printf '%s\\n' $AS_O
 875 }
 876
 877 check_as(){
 878     log check_as "$@"
 879     cat > $TMPS
 880     log_file $TMPS
 881     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 882 }
 883
 884 check_inline_asm(){
 885     log check_inline_asm "$@"
 886     name="$1"
 887     code="$2"
 888     shift 2
 889     disable $name
 890     check_cc "$@" <<EOF && enable $name
 891 void foo(void){ __asm__ volatile($code); }
 892 EOF
 893 }
 894
 895 check_insn(){
 896     log check_insn "$@"
 897     check_inline_asm ${1}_inline "\"$2\""
 898     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 899 }
 900
 901 check_yasm(){
 902     log check_yasm "$@"
 903     echo "$1" > $TMPS
 904     log_file $TMPS
 905     shift 1
 906     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 907 }
 908
 909 ld_o(){
 910     eval printf '%s\\n' $LD_O
 911 }
 912
 913 check_ld(){
 914     log check_ld "$@"
 915     type=$1
 916     shift 1
 917     flags=$(filter_out '-l*|*.so' $@)
 918     libs=$(filter '-l*|*.so' $@)
 919     check_$type $($cflags_filter $flags) || return
 920     flags=$($ldflags_filter $flags)
 921     libs=$($ldflags_filter $libs)
 922     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 923 }
 924
 925 print_include(){
 926     hdr=$1
 927     test "${hdr%.h}" = "${hdr}" &&
 928         echo "#include $hdr"    ||
 929         echo "#include <$hdr>"
 930 }
 931
 932 check_code(){
 933     log check_code "$@"
 934     check=$1
 935     headers=$2
 936     code=$3
 937     shift 3
 938     {
 939         for hdr in $headers; do
 940             print_include $hdr
 941         done
 942         echo "int main(void) { $code; return 0; }"
 943     } | check_$check "$@"
 944 }
 945
 946 check_cppflags(){
 947     log check_cppflags "$@"
 948     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 949 int x;
 950 EOF
 951 }
 952
 953 test_cflags(){
 954     log test_cflags "$@"
 955     set -- $($cflags_filter "$@")
 956     check_cc "$@" <<EOF
 957 int x;
 958 EOF
 959 }
 960
 961 check_cflags(){
 962     log check_cflags "$@"
 963     test_cflags "$@" && add_cflags "$@"
 964 }
 965
 966 check_cxxflags(){
 967     log check_cxxflags "$@"
 968     set -- $($cflags_filter "$@")
 969     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 970 int x;
 971 EOF
 972 }
 973
 974 test_ldflags(){
 975     log test_ldflags "$@"
 976     check_ld "cc" "$@" <<EOF
 977 int main(void){ return 0; }
 978 EOF
 979 }
 980
 981 check_ldflags(){
 982     log check_ldflags "$@"
 983     test_ldflags "$@" && add_ldflags "$@"
 984 }
 985
 986 test_stripflags(){
 987     log test_stripflags "$@"
 988     # call check_cc to get a fresh TMPO
 989     check_cc <<EOF
 990 int main(void) { return 0; }
 991 EOF
 992     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 993 }
 994
 995 check_stripflags(){
 996     log check_stripflags "$@"
 997     test_stripflags "$@" && add_stripflags "$@"
 998 }
 999
1000 check_header(){
1001     log check_header "$@"
1002     header=$1
1003     shift
1004     disable_safe $header
1005     check_cpp "$@" <<EOF && enable_safe $header
1006 #include <$header>
1007 int x;
1008 EOF
1009 }
1010
1011 check_header_oc(){
1012     log check_header_oc "$@"
1013     rm -f -- "$TMPO"
1014     header=$1
1015     shift
1016     disable_safe $header
1017     {
1018        echo "#include <$header>"
1019        echo "int main(void) { return 0; }"
1020     } | check_oc && check_stat "$TMPO" && enable_safe $headers
1021 }
1022
1023 check_func(){
1024     log check_func "$@"
1025     func=$1
1026     shift
1027     disable $func
1028     check_ld "cc" "$@" <<EOF && enable $func
1029 extern int $func();
1030 int main(void){ $func(); }
1031 EOF
1032 }
1033
1034 check_mathfunc(){
1035     log check_mathfunc "$@"
1036     func=$1
1037     narg=$2
1038     shift 2
1039     test $narg = 2 && args="f, g" || args="f"
1040     disable $func
1041     check_ld "cc" "$@" <<EOF && enable $func
1042 #include <math.h>
1043 float foo(float f, float g) { return $func($args); }
1044 int main(void){ return (int) foo; }
1045 EOF
1046 }
1047
1048 check_func_headers(){
1049     log check_func_headers "$@"
1050     headers=$1
1051     funcs=$2
1052     shift 2
1053     {
1054         for hdr in $headers; do
1055             print_include $hdr
1056         done
1057         for func in $funcs; do
1058             echo "long check_$func(void) { return (long) $func; }"
1059         done
1060         echo "int main(void) { return 0; }"
1061     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1062 }
1063
1064 check_class_headers_cpp(){
1065     log check_class_headers_cpp "$@"
1066     headers=$1
1067     classes=$2
1068     shift 2
1069     {
1070         for hdr in $headers; do
1071             echo "#include <$hdr>"
1072         done
1073         echo "int main(void) { "
1074         i=1
1075         for class in $classes; do
1076             echo "$class obj$i;"
1077             i=$(expr $i + 1)
1078         done
1079         echo "return 0; }"
1080     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1081 }
1082
1083 check_cpp_condition(){
1084     log check_cpp_condition "$@"
1085     header=$1
1086     condition=$2
1087     shift 2
1088     check_cpp "$@" <<EOF
1089 #include <$header>
1090 #if !($condition)
1091 #error "unsatisfied condition: $condition"
1092 #endif
1093 EOF
1094 }
1095
1096 check_lib(){
1097     log check_lib "$@"
1098     header="$1"
1099     func="$2"
1100     shift 2
1101     check_header $header && check_func $func "$@" && add_extralibs "$@"
1102 }
1103
1104 check_lib2(){
1105     log check_lib2 "$@"
1106     headers="$1"
1107     funcs="$2"
1108     shift 2
1109     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1110 }
1111
1112 check_lib_cpp(){
1113     log check_lib_cpp "$@"
1114     headers="$1"
1115     classes="$2"
1116     shift 2
1117     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1118 }
1119
1120 check_pkg_config(){
1121     log check_pkg_config "$@"
1122     pkgandversion="$1"
1123     pkg="${1%% *}"
1124     headers="$2"
1125     funcs="$3"
1126     shift 3
1127     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1128     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1129     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1130     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1131         set_safe "${pkg}_cflags" $pkg_cflags   &&
1132         set_safe "${pkg}_libs"   $pkg_libs
1133 }
1134
1135 check_exec(){
1136     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1137 }
1138
1139 check_exec_crash(){
1140     code=$(cat)
1141
1142     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1143     # are safe but may not be available everywhere.  Thus we use
1144     # raise(SIGTERM) instead.  The check is run in a subshell so we
1145     # can redirect the "Terminated" message from the shell.  SIGBUS
1146     # is not defined by standard C so it is used conditionally.
1147
1148     (check_exec "$@") >> $logfile 2>&1 <<EOF
1149 #include <signal.h>
1150 static void sighandler(int sig){
1151     raise(SIGTERM);
1152 }
1153 int foo(void){
1154     $code
1155 }
1156 int (*func_ptr)(void) = foo;
1157 int main(void){
1158     signal(SIGILL, sighandler);
1159     signal(SIGFPE, sighandler);
1160     signal(SIGSEGV, sighandler);
1161 #ifdef SIGBUS
1162     signal(SIGBUS, sighandler);
1163 #endif
1164     return func_ptr();
1165 }
1166 EOF
1167 }
1168
1169 check_type(){
1170     log check_type "$@"
1171     headers=$1
1172     type=$2
1173     shift 2
1174     disable_safe "$type"
1175     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1176 }
1177
1178 check_struct(){
1179     log check_struct "$@"
1180     headers=$1
1181     struct=$2
1182     member=$3
1183     shift 3
1184     disable_safe "${struct}_${member}"
1185     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1186         enable_safe "${struct}_${member}"
1187 }
1188
1189 check_builtin(){
1190     log check_builtin "$@"
1191     name=$1
1192     headers=$2
1193     builtin=$3
1194     shift 3
1195     disable "$name"
1196     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1197 }
1198
1199 check_compile_assert(){
1200     log check_compile_assert "$@"
1201     name=$1
1202     headers=$2
1203     condition=$3
1204     shift 3
1205     disable "$name"
1206     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1207 }
1208
1209 require(){
1210     name="$1"
1211     header="$2"
1212     func="$3"
1213     shift 3
1214     check_lib $header $func "$@" || die "ERROR: $name not found"
1215 }
1216
1217 require2(){
1218     name="$1"
1219     headers="$2"
1220     func="$3"
1221     shift 3
1222     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1223 }
1224
1225 require_cpp(){
1226     name="$1"
1227     headers="$2"
1228     classes="$3"
1229     shift 3
1230     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1231 }
1232
1233 use_pkg_config(){
1234     pkg="$1"
1235     check_pkg_config "$@" || return 1
1236     add_cflags    $(get_safe "${pkg}_cflags")
1237     add_extralibs $(get_safe "${pkg}_libs")
1238 }
1239
1240 require_pkg_config(){
1241     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1242 }
1243
1244 require_libfreetype(){
1245     log require_libfreetype "$@"
1246     pkg="freetype2"
1247     check_cmd $pkg_config --exists --print-errors $pkg \
1248       || die "ERROR: $pkg not found"
1249     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1250     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1251     {
1252         echo "#include <ft2build.h>"
1253         echo "#include FT_FREETYPE_H"
1254         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1255         echo "int main(void) { return 0; }"
1256     } | check_ld "cc" $pkg_cflags $pkg_libs \
1257       && set_safe "${pkg}_cflags" $pkg_cflags \
1258       && set_safe "${pkg}_libs"   $pkg_libs \
1259       || die "ERROR: $pkg not found"
1260     add_cflags    $(get_safe "${pkg}_cflags")
1261     add_extralibs $(get_safe "${pkg}_libs")
1262 }
1263
1264 hostcc_e(){
1265     eval printf '%s\\n' $HOSTCC_E
1266 }
1267
1268 hostcc_o(){
1269     eval printf '%s\\n' $HOSTCC_O
1270 }
1271
1272 check_host_cc(){
1273     log check_host_cc "$@"
1274     cat > $TMPC
1275     log_file $TMPC
1276     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1277 }
1278
1279 check_host_cpp(){
1280     log check_host_cpp "$@"
1281     cat > $TMPC
1282     log_file $TMPC
1283     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1284 }
1285
1286 check_host_cppflags(){
1287     log check_host_cppflags "$@"
1288     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1289 int x;
1290 EOF
1291 }
1292
1293 check_host_cflags(){
1294     log check_host_cflags "$@"
1295     set -- $($host_cflags_filter "$@")
1296     check_host_cc "$@" <<EOF && append host_cflags "$@"
1297 int x;
1298 EOF
1299 }
1300
1301 check_host_cpp_condition(){
1302     log check_host_cpp_condition "$@"
1303     header=$1
1304     condition=$2
1305     shift 2
1306     check_host_cpp "$@" <<EOF
1307 #include <$header>
1308 #if !($condition)
1309 #error "unsatisfied condition: $condition"
1310 #endif
1311 EOF
1312 }
1313
1314 apply(){
1315     file=$1
1316     shift
1317     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1318 }
1319
1320 cp_if_changed(){
1321     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1322     mkdir -p "$(dirname $2)"
1323     $cp_f "$1" "$2"
1324 }
1325
1326 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1327 # system-dependent things.
1328
1329 COMPONENT_LIST="
1330     bsfs
1331     decoders
1332     demuxers
1333     encoders
1334     filters
1335     hwaccels
1336     indevs
1337     muxers
1338     outdevs
1339     parsers
1340     protocols
1341 "
1342
1343 EXAMPLE_LIST="
1344     avio_reading_example
1345     avio_list_dir_example
1346     decoding_encoding_example
1347     demuxing_decoding_example
1348     extract_mvs_example
1349     filter_audio_example
1350     filtering_audio_example
1351     filtering_video_example
1352     metadata_example
1353     muxing_example
1354     qsvdec_example
1355     remuxing_example
1356     resampling_audio_example
1357     scaling_video_example
1358     transcode_aac_example
1359     transcoding_example
1360 "
1361
1362 EXTERNAL_LIBRARY_LIST="
1363     avisynth
1364     bzlib
1365     crystalhd
1366     decklink
1367     frei0r
1368     gnutls
1369     iconv
1370     ladspa
1371     libaacplus
1372     libass
1373     libbluray
1374     libbs2b
1375     libcaca
1376     libcdio
1377     libcelt
1378     libdc1394
1379     libdcadec
1380     libfaac
1381     libfdk_aac
1382     libflite
1383     libfontconfig
1384     libfreetype
1385     libfribidi
1386     libgme
1387     libgsm
1388     libiec61883
1389     libilbc
1390     libkvazaar
1391     libmfx
1392     libmodplug
1393     libmp3lame
1394     libnut
1395     libopencore_amrnb
1396     libopencore_amrwb
1397     libopencv
1398     libopenh264
1399     libopenjpeg
1400     libopus
1401     libpulse
1402     libquvi
1403     librtmp
1404     libschroedinger
1405     libshine
1406     libsmbclient
1407     libsnappy
1408     libsoxr
1409     libspeex
1410     libssh
1411     libstagefright_h264
1412     libtheora
1413     libtwolame
1414     libutvideo
1415     libv4l2
1416     libvidstab
1417     libvo_aacenc
1418     libvo_amrwbenc
1419     libvorbis
1420     libvpx
1421     libwavpack
1422     libwebp
1423     libx264
1424     libx265
1425     libxavs
1426     libxcb
1427     libxcb_shm
1428     libxcb_shape
1429     libxcb_xfixes
1430     libxvid
1431     libzmq
1432     libzvbi
1433     lzma
1434     mmal
1435     nvenc
1436     openal
1437     opencl
1438     opengl
1439     openssl
1440     sdl
1441     securetransport
1442     x11grab
1443     xlib
1444     zlib
1445 "
1446
1447 DOCUMENT_LIST="
1448     doc
1449     htmlpages
1450     manpages
1451     podpages
1452     txtpages
1453 "
1454
1455 FEATURE_LIST="
1456     ftrapv
1457     gray
1458     hardcoded_tables
1459     runtime_cpudetect
1460     safe_bitstream_reader
1461     shared
1462     small
1463     static
1464     swscale_alpha
1465 "
1466
1467 HWACCEL_LIST="
1468     d3d11va
1469     dxva2
1470     vaapi
1471     vda
1472     vdpau
1473     xvmc
1474 "
1475
1476 LIBRARY_LIST="
1477     avcodec
1478     avdevice
1479     avfilter
1480     avformat
1481     avresample
1482     avutil
1483     postproc
1484     swresample
1485     swscale
1486 "
1487
1488 LICENSE_LIST="
1489     gpl
1490     nonfree
1491     version3
1492 "
1493
1494 PROGRAM_LIST="
1495     ffplay
1496     ffprobe
1497     ffserver
1498     ffmpeg
1499 "
1500
1501 SUBSYSTEM_LIST="
1502     dct
1503     dwt
1504     error_resilience
1505     faan
1506     fast_unaligned
1507     fft
1508     lsp
1509     lzo
1510     mdct
1511     pixelutils
1512     network
1513     rdft
1514 "
1515
1516 CONFIG_LIST="
1517     $COMPONENT_LIST
1518     $DOCUMENT_LIST
1519     $EXAMPLE_LIST
1520     $EXTERNAL_LIBRARY_LIST
1521     $FEATURE_LIST
1522     $HWACCEL_LIST
1523     $LICENSE_LIST
1524     $LIBRARY_LIST
1525     $PROGRAM_LIST
1526     $SUBSYSTEM_LIST
1527     fontconfig
1528     incompatible_libav_abi
1529     memalign_hack
1530     memory_poisoning
1531     neon_clobber_test
1532     pic
1533     pod2man
1534     raise_major
1535     thumb
1536     valgrind_backtrace
1537     xmm_clobber_test
1538 "
1539
1540 THREADS_LIST="
1541     pthreads
1542     os2threads
1543     w32threads
1544 "
1545
1546 ATOMICS_LIST="
1547     atomics_gcc
1548     atomics_suncc
1549     atomics_win32
1550 "
1551
1552 ARCH_LIST="
1553     aarch64
1554     alpha
1555     arm
1556     avr32
1557     avr32_ap
1558     avr32_uc
1559     bfin
1560     ia64
1561     m68k
1562     mips
1563     mips64
1564     parisc
1565     ppc
1566     ppc64
1567     s390
1568     sh4
1569     sparc
1570     sparc64
1571     tilegx
1572     tilepro
1573     tomi
1574     x86
1575     x86_32
1576     x86_64
1577 "
1578
1579 ARCH_EXT_LIST_ARM="
1580     armv5te
1581     armv6
1582     armv6t2
1583     armv8
1584     neon
1585     vfp
1586     vfpv3
1587     setend
1588 "
1589
1590 ARCH_EXT_LIST_MIPS="
1591     mipsfpu
1592     mips32r2
1593     mips32r5
1594     mips64r6
1595     mipsdspr1
1596     mipsdspr2
1597     msa
1598 "
1599
1600 ARCH_EXT_LIST_LOONGSON="
1601     loongson2
1602     loongson3
1603     mmi
1604 "
1605
1606 ARCH_EXT_LIST_X86_SIMD="
1607     amd3dnow
1608     amd3dnowext
1609     avx
1610     avx2
1611     fma3
1612     fma4
1613     mmx
1614     mmxext
1615     sse
1616     sse2
1617     sse3
1618     sse4
1619     sse42
1620     ssse3
1621     xop
1622 "
1623
1624 ARCH_EXT_LIST_PPC="
1625     altivec
1626     dcbzl
1627     ldbrx
1628     power8
1629     ppc4xx
1630     vsx
1631 "
1632
1633 ARCH_EXT_LIST_X86="
1634     $ARCH_EXT_LIST_X86_SIMD
1635     cpunop
1636     i686
1637 "
1638
1639 ARCH_EXT_LIST="
1640     $ARCH_EXT_LIST_ARM
1641     $ARCH_EXT_LIST_PPC
1642     $ARCH_EXT_LIST_X86
1643     $ARCH_EXT_LIST_MIPS
1644     $ARCH_EXT_LIST_LOONGSON
1645 "
1646
1647 ARCH_FEATURES="
1648     aligned_stack
1649     fast_64bit
1650     fast_clz
1651     fast_cmov
1652     local_aligned_8
1653     local_aligned_16
1654     local_aligned_32
1655     simd_align_16
1656 "
1657
1658 BUILTIN_LIST="
1659     atomic_cas_ptr
1660     atomic_compare_exchange
1661     machine_rw_barrier
1662     MemoryBarrier
1663     mm_empty
1664     rdtsc
1665     sarestart
1666     sync_val_compare_and_swap
1667 "
1668 HAVE_LIST_CMDLINE="
1669     inline_asm
1670     symver
1671     yasm
1672 "
1673
1674 HAVE_LIST_PUB="
1675     bigendian
1676     fast_unaligned
1677     incompatible_libav_abi
1678 "
1679
1680 HEADERS_LIST="
1681     alsa_asoundlib_h
1682     altivec_h
1683     arpa_inet_h
1684     asm_types_h
1685     cdio_paranoia_h
1686     cdio_paranoia_paranoia_h
1687     dev_bktr_ioctl_bt848_h
1688     dev_bktr_ioctl_meteor_h
1689     dev_ic_bt8xx_h
1690     dev_video_bktr_ioctl_bt848_h
1691     dev_video_meteor_ioctl_meteor_h
1692     direct_h
1693     dlfcn_h
1694     d3d11_h
1695     dxva_h
1696     ES2_gl_h
1697     gsm_h
1698     io_h
1699     mach_mach_time_h
1700     machine_ioctl_bt848_h
1701     machine_ioctl_meteor_h
1702     malloc_h
1703     openjpeg_1_5_openjpeg_h
1704     OpenGL_gl3_h
1705     poll_h
1706     sndio_h
1707     soundcard_h
1708     sys_mman_h
1709     sys_param_h
1710     sys_resource_h
1711     sys_select_h
1712     sys_soundcard_h
1713     sys_time_h
1714     sys_un_h
1715     sys_videoio_h
1716     termios_h
1717     udplite_h
1718     unistd_h
1719     valgrind_valgrind_h
1720     windows_h
1721     winsock2_h
1722 "
1723
1724 INTRINSICS_LIST="
1725     intrinsics_neon
1726 "
1727
1728 MATH_FUNCS="
1729     atanf
1730     atan2f
1731     cbrt
1732     cbrtf
1733     cosf
1734     exp2
1735     exp2f
1736     expf
1737     isinf
1738     isnan
1739     ldexpf
1740     llrint
1741     llrintf
1742     log2
1743     log2f
1744     log10f
1745     lrint
1746     lrintf
1747     powf
1748     rint
1749     round
1750     roundf
1751     sinf
1752     trunc
1753     truncf
1754 "
1755
1756 SYSTEM_FUNCS="
1757     access
1758     aligned_malloc
1759     clock_gettime
1760     closesocket
1761     CommandLineToArgvW
1762     CoTaskMemFree
1763     CryptGenRandom
1764     dlopen
1765     fcntl
1766     flt_lim
1767     fork
1768     getaddrinfo
1769     gethrtime
1770     getopt
1771     GetProcessAffinityMask
1772     GetProcessMemoryInfo
1773     GetProcessTimes
1774     getrusage
1775     getservbyport
1776     GetSystemTimeAsFileTime
1777     gettimeofday
1778     glob
1779     glXGetProcAddress
1780     gmtime_r
1781     inet_aton
1782     isatty
1783     jack_port_get_latency_range
1784     kbhit
1785     localtime_r
1786     lzo1x_999_compress
1787     mach_absolute_time
1788     MapViewOfFile
1789     memalign
1790     mkstemp
1791     mmap
1792     mprotect
1793     nanosleep
1794     PeekNamedPipe
1795     posix_memalign
1796     pthread_cancel
1797     sched_getaffinity
1798     SetConsoleTextAttribute
1799     SetConsoleCtrlHandler
1800     setmode
1801     setrlimit
1802     Sleep
1803     strerror_r
1804     sysconf
1805     sysctl
1806     usleep
1807     VirtualAlloc
1808     wglGetProcAddress
1809 "
1810
1811 TOOLCHAIN_FEATURES="
1812     as_dn_directive
1813     as_func
1814     as_object_arch
1815     asm_mod_q
1816     attribute_may_alias
1817     attribute_packed
1818     ebp_available
1819     ebx_available
1820     gnu_as
1821     gnu_windres
1822     ibm_asm
1823     inline_asm_labels
1824     inline_asm_nonlocal_labels
1825     inline_asm_direct_symbol_refs
1826     pragma_deprecated
1827     rsync_contimeout
1828     symver_asm_label
1829     symver_gnu_asm
1830     vfp_args
1831     xform_asm
1832     xmm_clobbers
1833 "
1834
1835 TYPES_LIST="
1836     CONDITION_VARIABLE_Ptr
1837     socklen_t
1838     struct_addrinfo
1839     struct_dcadec_exss_info_matrix_encoding
1840     struct_group_source_req
1841     struct_ip_mreq_source
1842     struct_ipv6_mreq
1843     struct_pollfd
1844     struct_rusage_ru_maxrss
1845     struct_sctp_event_subscribe
1846     struct_sockaddr_in6
1847     struct_sockaddr_sa_len
1848     struct_sockaddr_storage
1849     struct_stat_st_mtim_tv_nsec
1850     struct_v4l2_frmivalenum_discrete
1851 "
1852
1853 HAVE_LIST="
1854     $ARCH_EXT_LIST
1855     $(add_suffix _external $ARCH_EXT_LIST)
1856     $(add_suffix _inline   $ARCH_EXT_LIST)
1857     $ARCH_FEATURES
1858     $ATOMICS_LIST
1859     $BUILTIN_LIST
1860     $HAVE_LIST_CMDLINE
1861     $HAVE_LIST_PUB
1862     $HEADERS_LIST
1863     $INTRINSICS_LIST
1864     $MATH_FUNCS
1865     $SYSTEM_FUNCS
1866     $THREADS_LIST
1867     $TOOLCHAIN_FEATURES
1868     $TYPES_LIST
1869     atomics_native
1870     dos_paths
1871     dxva2api_cobj
1872     dxva2_lib
1873     libc_msvcrt
1874     libdc1394_1
1875     libdc1394_2
1876     makeinfo
1877     makeinfo_html
1878     perl
1879     pod2man
1880     sdl
1881     section_data_rel_ro
1882     texi2html
1883     threads
1884     vaapi_x11
1885     vdpau_x11
1886     xlib
1887 "
1888
1889 # options emitted with CONFIG_ prefix but not available on the command line
1890 CONFIG_EXTRA="
1891     aandcttables
1892     ac3dsp
1893     audio_frame_queue
1894     audiodsp
1895     blockdsp
1896     bswapdsp
1897     cabac
1898     dvprofile
1899     exif
1900     faandct
1901     faanidct
1902     fdctdsp
1903     flacdsp
1904     fmtconvert
1905     frame_thread_encoder
1906     g722dsp
1907     gcrypt
1908     gmp
1909     golomb
1910     gplv3
1911     h263dsp
1912     h264chroma
1913     h264dsp
1914     h264pred
1915     h264qpel
1916     hpeldsp
1917     huffman
1918     huffyuvdsp
1919     huffyuvencdsp
1920     idctdsp
1921     iirfilter
1922     imdct15
1923     intrax8
1924     ividsp
1925     jpegtables
1926     libx262
1927     lgplv3
1928     llauddsp
1929     llviddsp
1930     lpc
1931     me_cmp
1932     mpeg_er
1933     mpegaudio
1934     mpegaudiodsp
1935     mpegvideo
1936     mpegvideoenc
1937     mss34dsp
1938     pixblockdsp
1939     qpeldsp
1940     qsv
1941     qsvdec
1942     qsvenc
1943     rangecoder
1944     riffdec
1945     riffenc
1946     rtpdec
1947     rtpenc_chain
1948     rv34dsp
1949     sinewin
1950     snappy
1951     startcode
1952     texturedsp
1953     texturedspenc
1954     tpeldsp
1955     videodsp
1956     vp3dsp
1957     vp56dsp
1958     vp8dsp
1959     wma_freqs
1960     wmv2dsp
1961 "
1962
1963 CMDLINE_SELECT="
1964     $ARCH_EXT_LIST
1965     $CONFIG_LIST
1966     $HAVE_LIST_CMDLINE
1967     $THREADS_LIST
1968     asm
1969     cross_compile
1970     debug
1971     extra_warnings
1972     logging
1973     lto
1974     optimizations
1975     rpath
1976     stripping
1977 "
1978
1979 PATHS_LIST="
1980     bindir
1981     datadir
1982     docdir
1983     incdir
1984     libdir
1985     mandir
1986     pkgconfigdir
1987     prefix
1988     shlibdir
1989 "
1990
1991 CMDLINE_SET="
1992     $PATHS_LIST
1993     ar
1994     arch
1995     as
1996     assert_level
1997     build_suffix
1998     cc
1999     cpu
2000     cross_prefix
2001     cxx
2002     dep_cc
2003     doxygen
2004     env
2005     extra_version
2006     gas
2007     host_cc
2008     host_cflags
2009     host_ld
2010     host_ldflags
2011     host_libs
2012     host_os
2013     install
2014     ld
2015     logfile
2016     malloc_prefix
2017     nm
2018     optflags
2019     pkg_config
2020     pkg_config_flags
2021     progs_suffix
2022     random_seed
2023     ranlib
2024     samples
2025     strip
2026     sws_max_filter_size
2027     sysinclude
2028     sysroot
2029     target_exec
2030     target_os
2031     target_path
2032     target_samples
2033     tempprefix
2034     toolchain
2035     valgrind
2036     yasmexe
2037 "
2038
2039 CMDLINE_APPEND="
2040     extra_cflags
2041     extra_cxxflags
2042     host_cppflags
2043 "
2044
2045 # code dependency declarations
2046
2047 # architecture extensions
2048
2049 armv5te_deps="arm"
2050 armv6_deps="arm"
2051 armv6t2_deps="arm"
2052 armv8_deps="aarch64"
2053 neon_deps_any="aarch64 arm"
2054 intrinsics_neon_deps="neon"
2055 vfp_deps_any="aarch64 arm"
2056 vfpv3_deps="vfp"
2057 setend_deps="arm"
2058
2059 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2060
2061 mipsfpu_deps="mips"
2062 mipsdspr1_deps="mips"
2063 mipsdspr2_deps="mips"
2064 mips32r2_deps="mips"
2065 mips32r5_deps="mips"
2066 mips64r6_deps="mips"
2067 msa_deps="mips"
2068 mmi_deps="mips"
2069
2070 altivec_deps="ppc"
2071 dcbzl_deps="ppc"
2072 ldbrx_deps="ppc"
2073 ppc4xx_deps="ppc"
2074 vsx_deps="altivec"
2075 power8_deps="vsx"
2076
2077 cpunop_deps="i686"
2078 x86_64_select="i686"
2079 x86_64_suggest="fast_cmov"
2080
2081 amd3dnow_deps="mmx"
2082 amd3dnowext_deps="amd3dnow"
2083 i686_deps="x86"
2084 mmx_deps="x86"
2085 mmxext_deps="mmx"
2086 sse_deps="mmxext"
2087 sse2_deps="sse"
2088 sse3_deps="sse2"
2089 ssse3_deps="sse3"
2090 sse4_deps="ssse3"
2091 sse42_deps="sse4"
2092 avx_deps="sse42"
2093 xop_deps="avx"
2094 fma3_deps="avx"
2095 fma4_deps="avx"
2096 avx2_deps="avx"
2097
2098 mmx_external_deps="yasm"
2099 mmx_inline_deps="inline_asm"
2100 mmx_suggest="mmx_external mmx_inline"
2101
2102 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2103     eval dep=\$${ext}_deps
2104     eval ${ext}_external_deps='"${dep}_external"'
2105     eval ${ext}_inline_deps='"${dep}_inline"'
2106     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2107 done
2108
2109 aligned_stack_if_any="aarch64 ppc x86"
2110 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2111 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2112 fast_unaligned_if_any="aarch64 ppc x86"
2113 simd_align_16_if_any="altivec neon sse"
2114
2115 # system capabilities
2116 symver_if_any="symver_asm_label symver_gnu_asm"
2117 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2118
2119 # threading support
2120 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2121 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2122 atomics_win32_if="MemoryBarrier"
2123 atomics_native_if_any="$ATOMICS_LIST"
2124 w32threads_deps="atomics_native"
2125 threads_if_any="$THREADS_LIST"
2126
2127 # subsystems
2128 dct_select="rdft"
2129 error_resilience_select="me_cmp"
2130 faandct_deps="faan fdctdsp"
2131 faanidct_deps="faan idctdsp"
2132 frame_thread_encoder_deps="encoders threads"
2133 intrax8_select="error_resilience"
2134 mdct_select="fft"
2135 rdft_select="fft"
2136 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2137 mpeg_er_select="error_resilience"
2138 mpegaudio_select="mpegaudiodsp"
2139 mpegaudiodsp_select="dct"
2140 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2141 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2142 qsvdec_select="qsv"
2143 qsvenc_select="qsv"
2144
2145 # decoders / encoders
2146 aac_decoder_select="imdct15 mdct sinewin"
2147 aac_fixed_decoder_select="mdct sinewin"
2148 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2149 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2150 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2151 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2152 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2153 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2154 adpcm_g722_decoder_select="g722dsp"
2155 adpcm_g722_encoder_select="g722dsp"
2156 aic_decoder_select="golomb idctdsp"
2157 alac_encoder_select="lpc"
2158 als_decoder_select="bswapdsp"
2159 amrnb_decoder_select="lsp"
2160 amrwb_decoder_select="lsp"
2161 amv_decoder_select="sp5x_decoder exif"
2162 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2163 ape_decoder_select="bswapdsp llauddsp"
2164 apng_decoder_select="zlib"
2165 apng_encoder_select="huffyuvencdsp zlib"
2166 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2167 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2168 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2169 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2170 atrac1_decoder_select="mdct sinewin"
2171 atrac3_decoder_select="mdct"
2172 atrac3p_decoder_select="mdct sinewin"
2173 avrn_decoder_select="exif jpegtables"
2174 bink_decoder_select="blockdsp hpeldsp"
2175 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2176 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2177 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2178 cllc_decoder_select="bswapdsp"
2179 comfortnoise_encoder_select="lpc"
2180 cook_decoder_select="audiodsp mdct sinewin"
2181 cscd_decoder_select="lzo"
2182 cscd_decoder_suggest="zlib"
2183 dca_decoder_select="fmtconvert mdct"
2184 dds_decoder_select="texturedsp"
2185 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2186 dnxhd_decoder_select="blockdsp idctdsp"
2187 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2188 dvvideo_decoder_select="dvprofile idctdsp"
2189 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2190 dxa_decoder_select="zlib"
2191 eac3_decoder_select="ac3_decoder"
2192 eac3_encoder_select="ac3_encoder"
2193 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2194 eatgq_decoder_select="aandcttables"
2195 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2196 exr_decoder_select="zlib"
2197 ffv1_decoder_select="golomb rangecoder"
2198 ffv1_encoder_select="rangecoder"
2199 ffvhuff_decoder_select="huffyuv_decoder"
2200 ffvhuff_encoder_select="huffyuv_encoder"
2201 fic_decoder_select="golomb"
2202 flac_decoder_select="flacdsp golomb"
2203 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2204 flashsv_decoder_select="zlib"
2205 flashsv_encoder_select="zlib"
2206 flashsv2_encoder_select="zlib"
2207 flashsv2_decoder_select="zlib"
2208 flv_decoder_select="h263_decoder"
2209 flv_encoder_select="h263_encoder"
2210 fourxm_decoder_select="blockdsp bswapdsp"
2211 fraps_decoder_select="bswapdsp huffman"
2212 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2213 g729_decoder_select="audiodsp"
2214 h261_decoder_select="mpeg_er mpegvideo"
2215 h261_encoder_select="aandcttables mpegvideoenc"
2216 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2217 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2218 h263i_decoder_select="h263_decoder"
2219 h263p_decoder_select="h263_decoder"
2220 h263p_encoder_select="h263_encoder"
2221 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2222 h264_decoder_suggest="error_resilience"
2223 h264_qsv_decoder_deps="libmfx"
2224 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2225 h264_qsv_encoder_deps="libmfx"
2226 h264_qsv_encoder_select="qsvenc"
2227 hap_decoder_select="snappy texturedsp"
2228 hap_encoder_deps="libsnappy"
2229 hap_encoder_select="texturedspenc"
2230 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2231 hevc_qsv_encoder_deps="libmfx"
2232 hevc_qsv_encoder_select="qsvenc"
2233 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2234 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2235 iac_decoder_select="imc_decoder"
2236 imc_decoder_select="bswapdsp fft mdct sinewin"
2237 indeo3_decoder_select="hpeldsp"
2238 indeo4_decoder_select="ividsp"
2239 indeo5_decoder_select="ividsp"
2240 interplay_video_decoder_select="hpeldsp"
2241 jpegls_decoder_select="golomb mjpeg_decoder"
2242 jpegls_encoder_select="golomb"
2243 jv_decoder_select="blockdsp"
2244 lagarith_decoder_select="huffyuvdsp"
2245 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2246 loco_decoder_select="golomb"
2247 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2248 metasound_decoder_select="lsp mdct sinewin"
2249 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2250 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2251 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2252 mjpegb_decoder_select="mjpeg_decoder"
2253 mlp_decoder_select="mlp_parser"
2254 motionpixels_decoder_select="bswapdsp"
2255 mp1_decoder_select="mpegaudio"
2256 mp1float_decoder_select="mpegaudio"
2257 mp2_decoder_select="mpegaudio"
2258 mp2float_decoder_select="mpegaudio"
2259 mp3_decoder_select="mpegaudio"
2260 mp3adu_decoder_select="mpegaudio"
2261 mp3adufloat_decoder_select="mpegaudio"
2262 mp3float_decoder_select="mpegaudio"
2263 mp3on4_decoder_select="mpegaudio"
2264 mp3on4float_decoder_select="mpegaudio"
2265 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2266 mpc8_decoder_select="mpegaudiodsp"
2267 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2268 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2269 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2270 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2271 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2272 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2273 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2274 mpeg2_qsv_encoder_deps="libmfx"
2275 mpeg2_qsv_encoder_select="qsvenc"
2276 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2277 mpeg4_encoder_select="h263_encoder"
2278 msa1_decoder_select="mss34dsp"
2279 msmpeg4v1_decoder_select="h263_decoder"
2280 msmpeg4v2_decoder_select="h263_decoder"
2281 msmpeg4v2_encoder_select="h263_encoder"
2282 msmpeg4v3_decoder_select="h263_decoder"
2283 msmpeg4v3_encoder_select="h263_encoder"
2284 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2285 mts2_decoder_select="mss34dsp"
2286 mxpeg_decoder_select="mjpeg_decoder"
2287 nellymoser_decoder_select="mdct sinewin"
2288 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2289 nuv_decoder_select="idctdsp lzo"
2290 on2avc_decoder_select="mdct"
2291 opus_decoder_deps="swresample"
2292 opus_decoder_select="imdct15"
2293 png_decoder_select="zlib"
2294 png_encoder_select="huffyuvencdsp zlib"
2295 prores_decoder_select="blockdsp idctdsp"
2296 prores_encoder_select="fdctdsp"
2297 qcelp_decoder_select="lsp"
2298 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2299 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2300 ra_144_decoder_select="audiodsp"
2301 ralf_decoder_select="golomb"
2302 rawvideo_decoder_select="bswapdsp"
2303 rtjpeg_decoder_select="me_cmp"
2304 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2305 rv10_encoder_select="h263_encoder"
2306 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2307 rv20_encoder_select="h263_encoder"
2308 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2309 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2310 shorten_decoder_select="golomb"
2311 sipr_decoder_select="lsp"
2312 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2313 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2314 sonic_decoder_select="golomb rangecoder"
2315 sonic_encoder_select="golomb rangecoder"
2316 sonic_ls_encoder_select="golomb rangecoder"
2317 sp5x_decoder_select="mjpeg_decoder"
2318 svq1_decoder_select="hpeldsp"
2319 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2320 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2321 svq3_decoder_suggest="zlib"
2322 tak_decoder_select="audiodsp"
2323 tdsc_decoder_select="zlib mjpeg_decoder"
2324 theora_decoder_select="vp3_decoder"
2325 thp_decoder_select="mjpeg_decoder"
2326 tiff_decoder_suggest="zlib lzma"
2327 tiff_encoder_suggest="zlib"
2328 truehd_decoder_select="mlp_parser"
2329 truemotion2_decoder_select="bswapdsp"
2330 truespeech_decoder_select="bswapdsp"
2331 tscc_decoder_select="zlib"
2332 twinvq_decoder_select="mdct lsp sinewin"
2333 txd_decoder_select="texturedsp"
2334 utvideo_decoder_select="bswapdsp"
2335 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2336 vble_decoder_select="huffyuvdsp"
2337 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2338 vc1image_decoder_select="vc1_decoder"
2339 vorbis_decoder_select="mdct"
2340 vorbis_encoder_select="mdct"
2341 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2342 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2343 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2344 vp6a_decoder_select="vp6_decoder"
2345 vp6f_decoder_select="vp6_decoder"
2346 vp7_decoder_select="h264pred videodsp vp8dsp"
2347 vp8_decoder_select="h264pred videodsp vp8dsp"
2348 vp9_decoder_select="videodsp vp9_parser"
2349 webp_decoder_select="vp8_decoder"
2350 wmalossless_decoder_select="llauddsp"
2351 wmapro_decoder_select="mdct sinewin wma_freqs"
2352 wmav1_decoder_select="mdct sinewin wma_freqs"
2353 wmav1_encoder_select="mdct sinewin wma_freqs"
2354 wmav2_decoder_select="mdct sinewin wma_freqs"
2355 wmav2_encoder_select="mdct sinewin wma_freqs"
2356 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2357 wmv1_decoder_select="h263_decoder"
2358 wmv1_encoder_select="h263_encoder"
2359 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2360 wmv2_encoder_select="h263_encoder wmv2dsp"
2361 wmv3_decoder_select="vc1_decoder"
2362 wmv3image_decoder_select="wmv3_decoder"
2363 zerocodec_decoder_select="zlib"
2364 zlib_decoder_select="zlib"
2365 zlib_encoder_select="zlib"
2366 zmbv_decoder_select="zlib"
2367 zmbv_encoder_select="zlib"
2368
2369 # hardware accelerators
2370 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2371 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2372 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2373 vaapi_deps="va_va_h"
2374 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2375 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2376 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2377 xvmc_deps="X11_extensions_XvMClib_h"
2378
2379 h263_vaapi_hwaccel_deps="vaapi"
2380 h263_vaapi_hwaccel_select="h263_decoder"
2381 h263_vdpau_hwaccel_deps="vdpau"
2382 h263_vdpau_hwaccel_select="h263_decoder"
2383 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2384 h264_d3d11va_hwaccel_deps="d3d11va"
2385 h264_d3d11va_hwaccel_select="h264_decoder"
2386 h264_dxva2_hwaccel_deps="dxva2"
2387 h264_dxva2_hwaccel_select="h264_decoder"
2388 h264_mmal_decoder_deps="mmal"
2389 h264_mmal_hwaccel_deps="mmal"
2390 h264_mmal_decoder_select="h264_decoder"
2391 h264_mmal_encoder_deps="mmal"
2392 h264_qsv_hwaccel_deps="libmfx"
2393 h264_vaapi_hwaccel_deps="vaapi"
2394 h264_vaapi_hwaccel_select="h264_decoder"
2395 h264_vda_decoder_deps="vda"
2396 h264_vda_decoder_select="h264_decoder"
2397 h264_vda_hwaccel_deps="vda"
2398 h264_vda_hwaccel_select="h264_decoder"
2399 h264_vda_old_hwaccel_deps="vda"
2400 h264_vda_old_hwaccel_select="h264_decoder"
2401 h264_vdpau_decoder_deps="vdpau"
2402 h264_vdpau_decoder_select="h264_decoder"
2403 h264_vdpau_hwaccel_deps="vdpau"
2404 h264_vdpau_hwaccel_select="h264_decoder"
2405 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2406 hevc_d3d11va_hwaccel_select="hevc_decoder"
2407 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2408 hevc_dxva2_hwaccel_select="hevc_decoder"
2409 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2410 hevc_vdpau_hwaccel_select="hevc_decoder"
2411 mpeg_vdpau_decoder_deps="vdpau"
2412 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2413 mpeg_xvmc_hwaccel_deps="xvmc"
2414 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2415 mpeg1_vdpau_decoder_deps="vdpau"
2416 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2417 mpeg1_vdpau_hwaccel_deps="vdpau"
2418 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2419 mpeg1_xvmc_hwaccel_deps="xvmc"
2420 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2421 mpeg2_crystalhd_decoder_select="crystalhd"
2422 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2423 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2424 mpeg2_dxva2_hwaccel_deps="dxva2"
2425 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2426 mpeg2_vaapi_hwaccel_deps="vaapi"
2427 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2428 mpeg2_vdpau_hwaccel_deps="vdpau"
2429 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2430 mpeg2_xvmc_hwaccel_deps="xvmc"
2431 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2432 mpeg4_crystalhd_decoder_select="crystalhd"
2433 mpeg4_vaapi_hwaccel_deps="vaapi"
2434 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2435 mpeg4_vdpau_decoder_deps="vdpau"
2436 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2437 mpeg4_vdpau_hwaccel_deps="vdpau"
2438 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2439 msmpeg4_crystalhd_decoder_select="crystalhd"
2440 vc1_crystalhd_decoder_select="crystalhd"
2441 vc1_d3d11va_hwaccel_deps="d3d11va"
2442 vc1_d3d11va_hwaccel_select="vc1_decoder"
2443 vc1_dxva2_hwaccel_deps="dxva2"
2444 vc1_dxva2_hwaccel_select="vc1_decoder"
2445 vc1_vaapi_hwaccel_deps="vaapi"
2446 vc1_vaapi_hwaccel_select="vc1_decoder"
2447 vc1_vdpau_decoder_deps="vdpau"
2448 vc1_vdpau_decoder_select="vc1_decoder"
2449 vc1_vdpau_hwaccel_deps="vdpau"
2450 vc1_vdpau_hwaccel_select="vc1_decoder"
2451 wmv3_crystalhd_decoder_select="crystalhd"
2452 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2453 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2454 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2455 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2456 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2457
2458 # parsers
2459 h264_parser_select="h264_decoder"
2460 hevc_parser_select="golomb"
2461 mpegvideo_parser_select="mpegvideo"
2462 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2463 vc1_parser_select="mpegvideo startcode vc1_decoder"
2464
2465 # bitstream_filters
2466 mjpeg2jpeg_bsf_select="jpegtables"
2467
2468 # external libraries
2469 libaacplus_encoder_deps="libaacplus"
2470 libcelt_decoder_deps="libcelt"
2471 libdcadec_decoder_deps="libdcadec"
2472 libfaac_encoder_deps="libfaac"
2473 libfaac_encoder_select="audio_frame_queue"
2474 libfdk_aac_decoder_deps="libfdk_aac"
2475 libfdk_aac_encoder_deps="libfdk_aac"
2476 libfdk_aac_encoder_select="audio_frame_queue"
2477 libgme_demuxer_deps="libgme"
2478 libgsm_decoder_deps="libgsm"
2479 libgsm_encoder_deps="libgsm"
2480 libgsm_ms_decoder_deps="libgsm"
2481 libgsm_ms_encoder_deps="libgsm"
2482 libilbc_decoder_deps="libilbc"
2483 libilbc_encoder_deps="libilbc"
2484 libkvazaar_encoder_deps="libkvazaar"
2485 libmodplug_demuxer_deps="libmodplug"
2486 libmp3lame_encoder_deps="libmp3lame"
2487 libmp3lame_encoder_select="audio_frame_queue"
2488 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2489 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2490 libopencore_amrnb_encoder_select="audio_frame_queue"
2491 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2492 libopenh264_encoder_deps="libopenh264"
2493 libopenjpeg_decoder_deps="libopenjpeg"
2494 libopenjpeg_encoder_deps="libopenjpeg"
2495 libopus_decoder_deps="libopus"
2496 libopus_encoder_deps="libopus"
2497 libopus_encoder_select="audio_frame_queue"
2498 libquvi_demuxer_deps="libquvi"
2499 libschroedinger_decoder_deps="libschroedinger"
2500 libschroedinger_encoder_deps="libschroedinger"
2501 libshine_encoder_deps="libshine"
2502 libshine_encoder_select="audio_frame_queue"
2503 libspeex_decoder_deps="libspeex"
2504 libspeex_encoder_deps="libspeex"
2505 libspeex_encoder_select="audio_frame_queue"
2506 libstagefright_h264_decoder_deps="libstagefright_h264"
2507 libtheora_encoder_deps="libtheora"
2508 libtwolame_encoder_deps="libtwolame"
2509 libvo_aacenc_encoder_deps="libvo_aacenc"
2510 libvo_aacenc_encoder_select="audio_frame_queue"
2511 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2512 libvorbis_decoder_deps="libvorbis"
2513 libvorbis_encoder_deps="libvorbis"
2514 libvorbis_encoder_select="audio_frame_queue"
2515 libvpx_vp8_decoder_deps="libvpx"
2516 libvpx_vp8_encoder_deps="libvpx"
2517 libvpx_vp9_decoder_deps="libvpx"
2518 libvpx_vp9_encoder_deps="libvpx"
2519 libwavpack_encoder_deps="libwavpack"
2520 libwebp_encoder_deps="libwebp"
2521 libwebp_anim_encoder_deps="libwebp"
2522 libx262_encoder_deps="libx262"
2523 libx264_encoder_deps="libx264"
2524 libx264rgb_encoder_deps="libx264"
2525 libx264rgb_encoder_select="libx264_encoder"
2526 libx265_encoder_deps="libx265"
2527 libxavs_encoder_deps="libxavs"
2528 libxvid_encoder_deps="libxvid"
2529 libutvideo_decoder_deps="libutvideo"
2530 libutvideo_encoder_deps="libutvideo"
2531 libzvbi_teletext_decoder_deps="libzvbi"
2532 nvenc_encoder_deps="nvenc"
2533 nvenc_h264_encoder_deps="nvenc"
2534 nvenc_hevc_encoder_deps="nvenc"
2535
2536 # demuxers / muxers
2537 ac3_demuxer_select="ac3_parser"
2538 asf_demuxer_select="riffdec"
2539 asf_o_demuxer_select="riffdec"
2540 asf_muxer_select="riffenc"
2541 asf_stream_muxer_select="asf_muxer"
2542 avi_demuxer_select="riffdec exif"
2543 avi_muxer_select="riffenc"
2544 avisynth_demuxer_deps="avisynth"
2545 avisynth_demuxer_select="riffdec"
2546 caf_demuxer_select="riffdec"
2547 dash_muxer_select="mp4_muxer"
2548 dirac_demuxer_select="dirac_parser"
2549 dts_demuxer_select="dca_parser"
2550 dtshd_demuxer_select="dca_parser"
2551 dv_demuxer_select="dvprofile"
2552 dv_muxer_select="dvprofile"
2553 dxa_demuxer_select="riffdec"
2554 eac3_demuxer_select="ac3_parser"
2555 f4v_muxer_select="mov_muxer"
2556 flac_demuxer_select="flac_parser"
2557 hds_muxer_select="flv_muxer"
2558 hls_muxer_select="mpegts_muxer"
2559 image2_alias_pix_demuxer_select="image2_demuxer"
2560 image2_brender_pix_demuxer_select="image2_demuxer"
2561 ipod_muxer_select="mov_muxer"
2562 ismv_muxer_select="mov_muxer"
2563 libnut_demuxer_deps="libnut"
2564 libnut_muxer_deps="libnut"
2565 matroska_audio_muxer_select="matroska_muxer"
2566 matroska_demuxer_select="riffdec"
2567 matroska_demuxer_suggest="bzlib lzo zlib"
2568 matroska_muxer_select="riffenc"
2569 mmf_muxer_select="riffenc"
2570 mov_demuxer_select="riffdec"
2571 mov_demuxer_suggest="zlib"
2572 mov_muxer_select="riffenc rtpenc_chain"
2573 mp3_demuxer_select="mpegaudio_parser"
2574 mp4_muxer_select="mov_muxer"
2575 mpegts_muxer_select="adts_muxer latm_muxer"
2576 mpegtsraw_demuxer_select="mpegts_demuxer"
2577 mxf_d10_muxer_select="mxf_muxer"
2578 mxf_opatom_muxer_select="mxf_muxer"
2579 nut_muxer_select="riffenc"
2580 nuv_demuxer_select="riffdec"
2581 oga_muxer_select="ogg_muxer"
2582 ogg_demuxer_select="golomb"
2583 opus_muxer_select="ogg_muxer"
2584 psp_muxer_select="mov_muxer"
2585 rtp_demuxer_select="sdp_demuxer"
2586 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2587 rtsp_demuxer_select="http_protocol rtpdec"
2588 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2589 sap_demuxer_select="sdp_demuxer"
2590 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2591 sdp_demuxer_select="rtpdec"
2592 smoothstreaming_muxer_select="ismv_muxer"
2593 spdif_muxer_select="aac_parser"
2594 spx_muxer_select="ogg_muxer"
2595 tak_demuxer_select="tak_parser"
2596 tg2_muxer_select="mov_muxer"
2597 tgp_muxer_select="mov_muxer"
2598 vobsub_demuxer_select="mpegps_demuxer"
2599 w64_demuxer_select="wav_demuxer"
2600 w64_muxer_select="wav_muxer"
2601 wav_demuxer_select="riffdec"
2602 wav_muxer_select="riffenc"
2603 webm_muxer_select="riffenc"
2604 wtv_demuxer_select="riffdec"
2605 wtv_muxer_select="riffenc"
2606 xmv_demuxer_select="riffdec"
2607 xwma_demuxer_select="riffdec"
2608
2609 # indevs / outdevs
2610 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2611 alsa_outdev_deps="alsa_asoundlib_h"
2612 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2613 avfoundation_indev_select="avfoundation"
2614 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2615 caca_outdev_deps="libcaca"
2616 decklink_outdev_deps="decklink pthreads"
2617 decklink_outdev_extralibs="-lstdc++"
2618 decklink_indev_deps="decklink pthreads"
2619 decklink_indev_extralibs="-lstdc++"
2620 dshow_indev_deps="IBaseFilter"
2621 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2622 dv1394_indev_deps="dv1394"
2623 dv1394_indev_select="dv_demuxer"
2624 fbdev_indev_deps="linux_fb_h"
2625 fbdev_outdev_deps="linux_fb_h"
2626 gdigrab_indev_deps="CreateDIBSection"
2627 gdigrab_indev_extralibs="-lgdi32"
2628 gdigrab_indev_select="bmp_decoder"
2629 iec61883_indev_deps="libiec61883"
2630 jack_indev_deps="jack_jack_h sem_timedwait"
2631 lavfi_indev_deps="avfilter"
2632 libcdio_indev_deps="libcdio"
2633 libdc1394_indev_deps="libdc1394"
2634 libv4l2_indev_deps="libv4l2"
2635 openal_indev_deps="openal"
2636 opengl_outdev_deps="opengl"
2637 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2638 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2639 pulse_indev_deps="libpulse"
2640 pulse_outdev_deps="libpulse"
2641 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2642 qtkit_indev_select="qtkit"
2643 sdl_outdev_deps="sdl"
2644 sndio_indev_deps="sndio_h"
2645 sndio_outdev_deps="sndio_h"
2646 v4l_indev_deps="linux_videodev_h"
2647 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2648 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2649 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2650 vfwcap_indev_extralibs="-lavicap32"
2651 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2652 xv_outdev_extralibs="-lXv -lX11 -lXext"
2653 x11grab_indev_deps="x11grab"
2654 x11grab_xcb_indev_deps="libxcb"
2655
2656 # protocols
2657 bluray_protocol_deps="libbluray"
2658 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2659 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2660 ffrtmpcrypt_protocol_select="tcp_protocol"
2661 ffrtmphttp_protocol_deps="!librtmp_protocol"
2662 ffrtmphttp_protocol_select="http_protocol"
2663 ftp_protocol_select="tcp_protocol"
2664 gopher_protocol_select="network"
2665 http_protocol_select="tcp_protocol"
2666 httpproxy_protocol_select="tcp_protocol"
2667 https_protocol_select="tls_protocol"
2668 icecast_protocol_select="http_protocol"
2669 librtmp_protocol_deps="librtmp"
2670 librtmpe_protocol_deps="librtmp"
2671 librtmps_protocol_deps="librtmp"
2672 librtmpt_protocol_deps="librtmp"
2673 librtmpte_protocol_deps="librtmp"
2674 libsmbclient_protocol_deps="libsmbclient gplv3"
2675 libssh_protocol_deps="libssh"
2676 mmsh_protocol_select="http_protocol"
2677 mmst_protocol_select="network"
2678 rtmp_protocol_deps="!librtmp_protocol"
2679 rtmp_protocol_select="tcp_protocol"
2680 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2681 rtmps_protocol_deps="!librtmp_protocol"
2682 rtmps_protocol_select="tls_protocol"
2683 rtmpt_protocol_select="ffrtmphttp_protocol"
2684 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2685 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2686 rtp_protocol_select="udp_protocol"
2687 sctp_protocol_deps="struct_sctp_event_subscribe"
2688 sctp_protocol_select="network"
2689 srtp_protocol_select="rtp_protocol"
2690 tcp_protocol_select="network"
2691 tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"
2692 tls_gnutls_protocol_select="tcp_protocol"
2693 tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"
2694 tls_openssl_protocol_select="tcp_protocol"
2695 tls_securetransport_protocol_deps="securetransport"
2696 tls_securetransport_protocol_select="tcp_protocol"
2697 tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2698 udp_protocol_select="network"
2699 udplite_protocol_select="network"
2700 unix_protocol_deps="sys_un_h"
2701 unix_protocol_select="network"
2702
2703 # filters
2704 amovie_filter_deps="avcodec avformat"
2705 aresample_filter_deps="swresample"
2706 ass_filter_deps="libass"
2707 asyncts_filter_deps="avresample"
2708 atempo_filter_deps="avcodec"
2709 atempo_filter_select="rdft"
2710 azmq_filter_deps="libzmq"
2711 blackframe_filter_deps="gpl"
2712 boxblur_filter_deps="gpl"
2713 bs2b_filter_deps="libbs2b"
2714 colormatrix_filter_deps="gpl"
2715 cover_rect_filter_deps="avcodec avformat gpl"
2716 cropdetect_filter_deps="gpl"
2717 delogo_filter_deps="gpl"
2718 deshake_filter_select="pixelutils"
2719 drawtext_filter_deps="libfreetype"
2720 ebur128_filter_deps="gpl"
2721 eq_filter_deps="gpl"
2722 fftfilt_filter_deps="avcodec"
2723 fftfilt_filter_select="rdft"
2724 flite_filter_deps="libflite"
2725 find_rect_filter_deps="avcodec avformat gpl"
2726 frei0r_filter_deps="frei0r dlopen"
2727 frei0r_src_filter_deps="frei0r dlopen"
2728 fspp_filter_deps="gpl"
2729 geq_filter_deps="gpl"
2730 histeq_filter_deps="gpl"
2731 hqdn3d_filter_deps="gpl"
2732 interlace_filter_deps="gpl"
2733 kerndeint_filter_deps="gpl"
2734 ladspa_filter_deps="ladspa dlopen"
2735 mcdeint_filter_deps="avcodec gpl"
2736 movie_filter_deps="avcodec avformat"
2737 mpdecimate_filter_deps="gpl"
2738 mpdecimate_filter_select="pixelutils"
2739 mptestsrc_filter_deps="gpl"
2740 negate_filter_deps="lut_filter"
2741 perspective_filter_deps="gpl"
2742 pp7_filter_deps="gpl"
2743 ocv_filter_deps="libopencv"
2744 owdenoise_filter_deps="gpl"
2745 pan_filter_deps="swresample"
2746 phase_filter_deps="gpl"
2747 pp_filter_deps="gpl postproc"
2748 pullup_filter_deps="gpl"
2749 removelogo_filter_deps="avcodec avformat swscale"
2750 repeatfields_filter_deps="gpl"
2751 resample_filter_deps="avresample"
2752 sab_filter_deps="gpl swscale"
2753 scale_filter_deps="swscale"
2754 select_filter_select="pixelutils"
2755 smartblur_filter_deps="gpl swscale"
2756 showcqt_filter_deps="avcodec"
2757 showcqt_filter_select="fft"
2758 showspectrum_filter_deps="avcodec"
2759 showspectrum_filter_select="rdft"
2760 spp_filter_deps="gpl avcodec"
2761 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2762 stereo3d_filter_deps="gpl"
2763 subtitles_filter_deps="avformat avcodec libass"
2764 super2xsai_filter_deps="gpl"
2765 tinterlace_filter_deps="gpl"
2766 vidstabdetect_filter_deps="libvidstab"
2767 vidstabtransform_filter_deps="libvidstab"
2768 pixfmts_super2xsai_test_deps="super2xsai_filter"
2769 tinterlace_merge_test_deps="tinterlace_filter"
2770 tinterlace_pad_test_deps="tinterlace_filter"
2771 uspp_filter_deps="gpl avcodec"
2772 zmq_filter_deps="libzmq"
2773 zoompan_filter_deps="swscale"
2774
2775 # examples
2776 avio_reading="avformat avcodec avutil"
2777 avio_list_dir="avformat avutil"
2778 avcodec_example_deps="avcodec avutil"
2779 decoding_encoding_example_deps="avcodec avformat avutil"
2780 demuxing_decoding_example_deps="avcodec avformat avutil"
2781 extract_mvs_example_deps="avcodec avformat avutil"
2782 filter_audio_example_deps="avfilter avutil"
2783 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2784 filtering_video_example_deps="avfilter avcodec avformat avutil"
2785 metadata_example_deps="avformat avutil"
2786 muxing_example_deps="avcodec avformat avutil swscale"
2787 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2788 remuxing_example_deps="avcodec avformat avutil"
2789 resampling_audio_example_deps="avutil swresample"
2790 scaling_video_example_deps="avutil swscale"
2791 transcode_aac_example_deps="avcodec avformat swresample"
2792 transcoding_example_deps="avfilter avcodec avformat avutil"
2793
2794 # libraries, in linking order
2795 avcodec_deps="avutil"
2796 avdevice_deps="avformat avcodec avutil"
2797 avfilter_deps="avutil"
2798 avformat_deps="avcodec avutil"
2799 avresample_deps="avutil"
2800 postproc_deps="avutil gpl"
2801 swresample_deps="avutil"
2802 swscale_deps="avutil"
2803
2804 # programs
2805 ffmpeg_deps="avcodec avfilter avformat swresample"
2806 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2807                null_filter
2808                setpts_filter trim_filter"
2809 ffplay_deps="avcodec avformat swscale swresample sdl"
2810 ffplay_libs='$sdl_libs'
2811 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2812 ffprobe_deps="avcodec avformat"
2813 ffserver_deps="avformat fork sarestart"
2814 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2815
2816 # documentation
2817 podpages_deps="perl"
2818 manpages_deps="perl pod2man"
2819 htmlpages_deps="perl"
2820 htmlpages_deps_any="makeinfo_html texi2html"
2821 txtpages_deps="perl makeinfo"
2822 doc_deps_any="manpages htmlpages podpages txtpages"
2823
2824 # default parameters
2825
2826 logfile="config.log"
2827
2828 # installation paths
2829 prefix_default="/usr/local"
2830 bindir_default='${prefix}/bin'
2831 datadir_default='${prefix}/share/ffmpeg'
2832 docdir_default='${prefix}/share/doc/ffmpeg'
2833 incdir_default='${prefix}/include'
2834 libdir_default='${prefix}/lib'
2835 mandir_default='${prefix}/share/man'
2836
2837 # toolchain
2838 ar_default="ar"
2839 cc_default="gcc"
2840 cxx_default="g++"
2841 host_cc_default="gcc"
2842 cp_f="cp -f"
2843 doxygen_default="doxygen"
2844 install="install"
2845 ln_s="ln -s -f"
2846 nm_default="nm -g"
2847 objformat="elf"
2848 pkg_config_default=pkg-config
2849 ranlib_default="ranlib"
2850 strip_default="strip"
2851 yasmexe_default="yasm"
2852 windres_default="windres"
2853
2854 # OS
2855 target_os_default=$(tolower $(uname -s))
2856 host_os=$target_os_default
2857
2858 # machine
2859 if test "$target_os_default" = aix; then
2860     arch_default=$(uname -p)
2861     strip_default="strip -X32_64"
2862 else
2863     arch_default=$(uname -m)
2864 fi
2865 cpu="generic"
2866 intrinsics="none"
2867
2868 # configurable options
2869 enable $PROGRAM_LIST
2870 enable $DOCUMENT_LIST
2871 enable $EXAMPLE_LIST
2872 enable $(filter_out avresample $LIBRARY_LIST)
2873 enable stripping
2874
2875 enable asm
2876 enable debug
2877 enable doc
2878 enable faan faandct faanidct
2879 enable optimizations
2880 enable runtime_cpudetect
2881 enable safe_bitstream_reader
2882 enable static
2883 enable swscale_alpha
2884 enable valgrind_backtrace
2885
2886 sws_max_filter_size_default=256
2887 set_default sws_max_filter_size
2888
2889 # Enable hwaccels by default.
2890 enable d3d11va dxva2 vaapi vda vdpau xvmc
2891 enable xlib
2892
2893 # build settings
2894 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2895 LIBPREF="lib"
2896 LIBSUF=".a"
2897 FULLNAME='$(NAME)$(BUILDSUF)'
2898 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2899 SLIBPREF="lib"
2900 SLIBSUF=".so"
2901 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2902 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2903 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2904 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2905 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2906 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2907
2908 asflags_filter=echo
2909 cflags_filter=echo
2910 ldflags_filter=echo
2911
2912 AS_C='-c'
2913 AS_O='-o $@'
2914 CC_C='-c'
2915 CC_E='-E -o $@'
2916 CC_O='-o $@'
2917 CXX_C='-c'
2918 CXX_O='-o $@'
2919 LD_O='-o $@'
2920 LD_LIB='-l%'
2921 LD_PATH='-L'
2922 HOSTCC_C='-c'
2923 HOSTCC_E='-E -o $@'
2924 HOSTCC_O='-o $@'
2925 HOSTLD_O='-o $@'
2926
2927 host_libs='-lm'
2928 host_cflags_filter=echo
2929 host_ldflags_filter=echo
2930
2931 target_path='$(CURDIR)'
2932
2933 # since the object filename is not given with the -MM flag, the compiler
2934 # is only able to print the basename, and we must add the path ourselves
2935 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2936 DEPFLAGS='-MM'
2937
2938 # find source path
2939 if test -f configure; then
2940     source_path=.
2941 else
2942     source_path=$(cd $(dirname "$0"); pwd)
2943     echo "$source_path" | grep -q '[[:blank:]]' &&
2944         die "Out of tree builds are impossible with whitespace in source path."
2945     test -e "$source_path/config.h" &&
2946         die "Out of tree builds are impossible with config.h in source dir."
2947 fi
2948
2949 for v in "$@"; do
2950     r=${v#*=}
2951     l=${v%"$r"}
2952     r=$(sh_quote "$r")
2953     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2954 done
2955
2956 find_things(){
2957     thing=$1
2958     pattern=$2
2959     file=$source_path/$3
2960     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2961 }
2962
2963 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2964 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2965 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2966 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2967 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2968 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2969 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2970 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2971 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2972 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2973 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2974
2975 ALL_COMPONENTS="
2976     $BSF_LIST
2977     $DECODER_LIST
2978     $DEMUXER_LIST
2979     $ENCODER_LIST
2980     $FILTER_LIST
2981     $HWACCEL_LIST
2982     $INDEV_LIST
2983     $MUXER_LIST
2984     $OUTDEV_LIST
2985     $PARSER_LIST
2986     $PROTOCOL_LIST
2987 "
2988
2989 for n in $COMPONENT_LIST; do
2990     v=$(toupper ${n%s})_LIST
2991     eval enable \$$v
2992     eval ${n}_if_any="\$$v"
2993 done
2994
2995 enable $ARCH_EXT_LIST
2996
2997 die_unknown(){
2998     echo "Unknown option \"$1\"."
2999     echo "See $0 --help for available options."
3000     exit 1
3001 }
3002
3003 print_3_columns() {
3004     cat | tr ' ' '\n' | sort | pr -r -3 -t
3005 }
3006
3007 show_list() {
3008     suffix=_$1
3009     shift
3010     echo $* | sed s/$suffix//g | print_3_columns
3011     exit 0
3012 }
3013
3014 rand_list(){
3015     IFS=', '
3016     set -- $*
3017     unset IFS
3018     for thing; do
3019         comp=${thing%:*}
3020         prob=${thing#$comp}
3021         prob=${prob#:}
3022         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3023         echo "prob ${prob:-0.5}"
3024         printf '%s\n' $comp
3025     done
3026 }
3027
3028 do_random(){
3029     action=$1
3030     shift
3031     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3032     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3033 }
3034
3035 for opt do
3036     optval="${opt#*=}"
3037     case "$opt" in
3038         --extra-ldflags=*)
3039             add_ldflags $optval
3040         ;;
3041         --extra-ldexeflags=*)
3042             add_ldexeflags $optval
3043         ;;
3044         --extra-ldlibflags=*)
3045             add_ldlibflags $optval
3046         ;;
3047         --extra-libs=*)
3048             add_extralibs $optval
3049         ;;
3050         --disable-devices)
3051             disable $INDEV_LIST $OUTDEV_LIST
3052         ;;
3053         --enable-debug=*)
3054             debuglevel="$optval"
3055         ;;
3056         --disable-programs)
3057             disable $PROGRAM_LIST
3058         ;;
3059         --disable-everything)
3060             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3061         ;;
3062         --disable-all)
3063             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3064             disable $LIBRARY_LIST $PROGRAM_LIST doc
3065         ;;
3066         --enable-random|--disable-random)
3067             action=${opt%%-random}
3068             do_random ${action#--} $COMPONENT_LIST
3069         ;;
3070         --enable-random=*|--disable-random=*)
3071             action=${opt%%-random=*}
3072             do_random ${action#--} $optval
3073         ;;
3074         --enable-*=*|--disable-*=*)
3075             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3076             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3077             eval list=\$$(toupper $thing)_LIST
3078             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3079             list=$(filter "$name" $list)
3080             [ "$list" = "" ] && warn "Option $opt did not match anything"
3081             $action $list
3082         ;;
3083         --enable-?*|--disable-?*)
3084             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3085             if is_in $option $COMPONENT_LIST; then
3086                 test $action = disable && action=unset
3087                 eval $action \$$(toupper ${option%s})_LIST
3088             elif is_in $option $CMDLINE_SELECT; then
3089                 $action $option
3090             else
3091                 die_unknown $opt
3092             fi
3093         ;;
3094         --list-*)
3095             NAME="${opt#--list-}"
3096             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3097             NAME=${NAME%s}
3098             eval show_list $NAME \$$(toupper $NAME)_LIST
3099         ;;
3100         --help|-h) show_help
3101         ;;
3102         --fatal-warnings) enable fatal_warnings
3103         ;;
3104         *)
3105             optname="${opt%%=*}"
3106             optname="${optname#--}"
3107             optname=$(echo "$optname" | sed 's/-/_/g')
3108             if is_in $optname $CMDLINE_SET; then
3109                 eval $optname='$optval'
3110             elif is_in $optname $CMDLINE_APPEND; then
3111                 append $optname "$optval"
3112             else
3113                 die_unknown $opt
3114             fi
3115         ;;
3116     esac
3117 done
3118
3119 for e in $env; do
3120     eval "export $e"
3121 done
3122
3123 disabled logging && logfile=/dev/null
3124
3125 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3126 set >> $logfile
3127
3128 test -n "$valgrind" && toolchain="valgrind-memcheck"
3129
3130 case "$toolchain" in
3131     clang-asan)
3132         cc_default="clang"
3133         add_cflags  -fsanitize=address
3134         add_ldflags -fsanitize=address
3135     ;;
3136     clang-tsan)
3137         cc_default="clang"
3138         add_cflags  -fsanitize=thread -pie
3139         add_ldflags -fsanitize=thread -pie
3140     ;;
3141     clang-usan)
3142         cc_default="clang"
3143         add_cflags  -fsanitize=undefined
3144         add_ldflags -fsanitize=undefined
3145     ;;
3146     gcc-asan)
3147         cc_default="gcc"
3148         add_cflags  -fsanitize=address
3149         add_ldflags -fsanitize=address
3150     ;;
3151     gcc-tsan)
3152         cc_default="gcc"
3153         add_cflags  -fsanitize=thread -pie -fPIC
3154         add_ldflags -fsanitize=thread -pie -fPIC
3155     ;;
3156     gcc-usan)
3157         cc_default="gcc"
3158         add_cflags  -fsanitize=undefined
3159         add_ldflags -fsanitize=undefined
3160     ;;
3161     valgrind-massif)
3162         target_exec_default=${valgrind:-"valgrind"}
3163         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"
3164     ;;
3165     valgrind-memcheck)
3166         target_exec_default=${valgrind:-"valgrind"}
3167         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3168     ;;
3169     msvc)
3170         # Check whether the current MSVC version needs the C99 converter.
3171         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3172         # support enough of C99 to build ffmpeg. Default to the new
3173         # behaviour if the regexp was unable to match anything, since this
3174         # successfully parses the version number of existing supported
3175         # versions that require the converter (MSVC 2010 and 2012).
3176         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3177         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3178             cc_default="cl"
3179         else
3180             cc_default="c99wrap cl"
3181         fi
3182         ld_default="link"
3183         nm_default="dumpbin -symbols"
3184         ar_default="lib"
3185         target_os_default="win32"
3186         # Use a relative path for TMPDIR. This makes sure all the
3187         # ffconf temp files are written with a relative path, avoiding
3188         # issues with msys/win32 path conversion for MSVC parameters
3189         # such as -Fo<file> or -out:<file>.
3190         TMPDIR=.
3191     ;;
3192     icl)
3193         cc_default="icl"
3194         ld_default="xilink"
3195         nm_default="dumpbin -symbols"
3196         ar_default="xilib"
3197         target_os_default="win32"
3198         TMPDIR=.
3199     ;;
3200     gcov)
3201         add_cflags  -fprofile-arcs -ftest-coverage
3202         add_ldflags -fprofile-arcs -ftest-coverage
3203     ;;
3204     hardened)
3205         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3206         add_cflags   -fno-strict-overflow -fstack-protector-all
3207         add_ldflags  -Wl,-z,relro -Wl,-z,now
3208     ;;
3209     ?*)
3210         die "Unknown toolchain $toolchain"
3211     ;;
3212 esac
3213
3214 test -n "$cross_prefix" && enable cross_compile
3215
3216 if enabled cross_compile; then
3217     test -n "$arch" && test -n "$target_os" ||
3218         die "Must specify target arch and OS when cross-compiling"
3219 fi
3220
3221 ar_default="${cross_prefix}${ar_default}"
3222 cc_default="${cross_prefix}${cc_default}"
3223 cxx_default="${cross_prefix}${cxx_default}"
3224 nm_default="${cross_prefix}${nm_default}"
3225 pkg_config_default="${cross_prefix}${pkg_config_default}"
3226 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3227     ranlib_default="${cross_prefix}${ranlib_default} -D"
3228 else
3229     ranlib_default="${cross_prefix}${ranlib_default}"
3230 fi
3231 strip_default="${cross_prefix}${strip_default}"
3232 windres_default="${cross_prefix}${windres_default}"
3233
3234 sysinclude_default="${sysroot}/usr/include"
3235
3236 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3237     target_exec target_os yasmexe
3238 enabled cross_compile || host_cc_default=$cc
3239 set_default host_cc
3240
3241 pkg_config_fail_message=""
3242 if ! $pkg_config --version >/dev/null 2>&1; then
3243     warn "$pkg_config not found, library detection may fail."
3244     pkg_config=false
3245 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3246     pkg_config_fail_message="
3247 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3248 fi
3249
3250 if test $doxygen != $doxygen_default && \
3251   ! $doxygen --version >/dev/null 2>&1; then
3252     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3253 fi
3254
3255 exesuf() {
3256     case $1 in
3257         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3258     esac
3259 }
3260
3261 EXESUF=$(exesuf $target_os)
3262 HOSTEXESUF=$(exesuf $host_os)
3263
3264 # set temporary file name
3265 : ${TMPDIR:=$TEMPDIR}
3266 : ${TMPDIR:=$TMP}
3267 : ${TMPDIR:=/tmp}
3268
3269 if [ -n "$tempprefix" ] ; then
3270     mktemp(){
3271         echo $tempprefix.${HOSTNAME}.${UID}
3272     }
3273 elif ! check_cmd mktemp -u XXXXXX; then
3274     # simple replacement for missing mktemp
3275     # NOT SAFE FOR GENERAL USE
3276     mktemp(){
3277         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3278     }
3279 fi
3280
3281 tmpfile(){
3282     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3283         (set -C; exec > $tmp) 2>/dev/null ||
3284         die "Unable to create temporary file in $TMPDIR."
3285     append TMPFILES $tmp
3286     eval $1=$tmp
3287 }
3288
3289 trap 'rm -f -- $TMPFILES' EXIT
3290
3291 tmpfile TMPASM .asm
3292 tmpfile TMPC   .c
3293 tmpfile TMPCPP .cpp
3294 tmpfile TMPE   $EXESUF
3295 tmpfile TMPH   .h
3296 tmpfile TMPM   .m
3297 tmpfile TMPO   .o
3298 tmpfile TMPS   .S
3299 tmpfile TMPSH  .sh
3300 tmpfile TMPV   .ver
3301
3302 unset -f mktemp
3303
3304 chmod +x $TMPE
3305
3306 # make sure we can execute files in $TMPDIR
3307 cat > $TMPSH 2>> $logfile <<EOF
3308 #! /bin/sh
3309 EOF
3310 chmod +x $TMPSH >> $logfile 2>&1
3311 if ! $TMPSH >> $logfile 2>&1; then
3312     cat <<EOF
3313 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3314 variable to another directory and make sure that it is not mounted noexec.
3315 EOF
3316     die "Sanity test failed."
3317 fi
3318
3319 armasm_flags(){
3320     for flag; do
3321         case $flag in
3322             # Filter out MSVC cl.exe options from cflags that shouldn't
3323             # be passed to gas-preprocessor
3324             -M[TD]*)                                            ;;
3325             *)                  echo $flag                      ;;
3326         esac
3327    done
3328 }
3329
3330 ccc_flags(){
3331     for flag; do
3332         case $flag in
3333             -std=c99)           echo -c99                       ;;
3334             -mcpu=*)            echo -arch ${flag#*=}           ;;
3335             -mieee)             echo -ieee                      ;;
3336             -O*|-fast)          echo $flag                      ;;
3337             -fno-math-errno)    echo -assume nomath_errno       ;;
3338             -g)                 echo -g3                        ;;
3339             -Wall)              echo -msg_enable level2         ;;
3340             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3341             -Wl,*)              echo $flag                      ;;
3342             -f*|-W*)                                            ;;
3343             *)                  echo $flag                      ;;
3344         esac
3345    done
3346 }
3347
3348 cparser_flags(){
3349     for flag; do
3350         case $flag in
3351             -Wno-switch)             echo -Wno-switch-enum ;;
3352             -Wno-format-zero-length) ;;
3353             -Wdisabled-optimization) ;;
3354             -Wno-pointer-sign)       echo -Wno-other ;;
3355             *)                       echo $flag ;;
3356         esac
3357     done
3358 }
3359
3360 msvc_common_flags(){
3361     for flag; do
3362         case $flag in
3363             # In addition to specifying certain flags under the compiler
3364             # specific filters, they must be specified here as well or else the
3365             # generic catch all at the bottom will print the original flag.
3366             -Wall)                ;;
3367             -std=c99)             ;;
3368             # Common flags
3369             -fomit-frame-pointer) ;;
3370             -g)                   echo -Z7 ;;
3371             -fno-math-errno)      ;;
3372             -fno-common)          ;;
3373             -fno-signed-zeros)    ;;
3374             -fPIC)                ;;
3375             -mthumb)              ;;
3376             -march=*)             ;;
3377             -lz)                  echo zlib.lib ;;
3378             -lavifil32)           echo vfw32.lib ;;
3379             -lavicap32)           echo vfw32.lib user32.lib ;;
3380             -l*)                  echo ${flag#-l}.lib ;;
3381             -L*)                  echo -libpath:${flag#-L} ;;
3382             *)                    echo $flag ;;
3383         esac
3384     done
3385 }
3386
3387 msvc_flags(){
3388     msvc_common_flags "$@"
3389     for flag; do
3390         case $flag in
3391             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3392                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3393                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3394                                        -wd4307 \
3395                                        -wd4273 -wd4554 -wd4701 ;;
3396         esac
3397     done
3398 }
3399
3400 icl_flags(){
3401     msvc_common_flags "$@"
3402     for flag; do
3403         case $flag in
3404             # Despite what Intel's documentation says -Wall, which is supported
3405             # on Windows, does enable remarks so disable them here.
3406             -Wall)                echo $flag -Qdiag-disable:remark ;;
3407             -std=c99)             echo -Qstd=c99 ;;
3408             -flto)                echo -ipo ;;
3409         esac
3410     done
3411 }
3412
3413 icc_flags(){
3414     for flag; do
3415         case $flag in
3416             -flto)                echo -ipo ;;
3417             *)                    echo $flag ;;
3418         esac
3419     done
3420 }
3421
3422 pgi_flags(){
3423     for flag; do
3424         case $flag in
3425             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3426             -fomit-frame-pointer) echo -Mnoframe ;;
3427             -g)                   echo -gopt ;;
3428             *)                    echo $flag ;;
3429         esac
3430     done
3431 }
3432
3433 suncc_flags(){
3434     for flag; do
3435         case $flag in
3436             -march=*|-mcpu=*)
3437                 case "${flag#*=}" in
3438                     native)                   echo -xtarget=native       ;;
3439                     v9|niagara)               echo -xarch=sparc          ;;
3440                     ultrasparc)               echo -xarch=sparcvis       ;;
3441                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3442                     i586|pentium)             echo -xchip=pentium        ;;
3443                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3444                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3445                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3446                     pentium4*)          echo -xtarget=pentium4           ;;
3447                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3448                     *-sse3)             echo -xarch=sse3                 ;;
3449                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3450                     bonnell)                   echo -xarch=ssse3         ;;
3451                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3452                     westmere)                  echo -xtarget=westmere    ;;
3453                     silvermont)                echo -xarch=sse4_2        ;;
3454                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3455                     core-avx*|ivybridge|haswell|broadwell)
3456                                                echo -xarch=avx           ;;
3457                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3458                     btver1)                    echo -xarch=amdsse4a      ;;
3459                     btver2|bdver*)             echo -xarch=avx           ;;
3460                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3461                     k8|opteron|athlon64|athlon-fx)
3462                                                echo -xarch=sse2a         ;;
3463                     athlon*)                   echo -xarch=pentium_proa  ;;
3464                 esac
3465                 ;;
3466             -std=c99)             echo -xc99              ;;
3467             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3468             -fPIC)                echo -KPIC -xcode=pic32 ;;
3469             -W*,*)                echo $flag              ;;
3470             -f*-*|-W*|-mimpure-text)                      ;;
3471             -shared)              echo -G                 ;;
3472             *)                    echo $flag              ;;
3473         esac
3474     done
3475 }
3476
3477 tms470_flags(){
3478     for flag; do
3479         case $flag in
3480             -march=*|-mcpu=*)
3481                 case "${flag#*=}" in
3482                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3483                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3484                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3485                     armv6*|arm11*)          echo -mv=6   ;;
3486                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3487                                             echo -mv=5e  ;;
3488                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3489                 esac
3490                 ;;
3491             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3492             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3493             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3494             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3495             -msoft-float)   echo --float_support=vfplib       ;;
3496             -O[0-3]|-mf=*)  echo $flag                        ;;
3497             -g)             echo -g -mn                       ;;
3498             -pds=*)         echo $flag                        ;;
3499             -D*|-I*)        echo $flag                        ;;
3500             --gcc|--abi=*)  echo $flag                        ;;
3501             -me)            echo $flag                        ;;
3502         esac
3503     done
3504 }
3505
3506 probe_cc(){
3507     pfx=$1
3508     _cc=$2
3509
3510     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3511     unset _ld_o _ldflags _ld_lib _ld_path
3512     unset _depflags _DEPCMD _DEPFLAGS
3513     _flags_filter=echo
3514
3515     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3516         true # no-op to avoid reading stdin in following checks
3517     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3518         _type=llvm_gcc
3519         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3520         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3521         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3522         _cflags_speed='-O3'
3523         _cflags_size='-Os'
3524     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3525         _type=gcc
3526         gcc_version=$($_cc --version | head -n1)
3527         gcc_basever=$($_cc -dumpversion)
3528         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3529         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3530         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3531         if ! $_cc -dumpversion | grep -q '^2\.'; then
3532             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3533         fi
3534         _cflags_speed='-O3'
3535         _cflags_size='-Os'
3536     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3537         _type=icc
3538         _ident=$($_cc --version | head -n1)
3539         _depflags='-MMD'
3540         _cflags_speed='-O3'
3541         _cflags_size='-Os'
3542         _cflags_noopt='-O1'
3543         _flags_filter=icc_flags
3544     elif $_cc -v 2>&1 | grep -q xlc; then
3545         _type=xlc
3546         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3547         _cflags_speed='-O5'
3548         _cflags_size='-O5 -qcompact'
3549     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3550         _type=ccc
3551         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3552         _DEPFLAGS='-M'
3553         _cflags_speed='-fast'
3554         _cflags_size='-O1'
3555         _flags_filter=ccc_flags
3556     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3557         test -d "$sysroot" || die "No valid sysroot specified."
3558         _type=armcc
3559         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3560         armcc_conf="$PWD/armcc.conf"
3561         $_cc --arm_linux_configure                 \
3562              --arm_linux_config_file="$armcc_conf" \
3563              --configure_sysroot="$sysroot"        \
3564              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3565              die "Error creating armcc configuration file."
3566         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3567         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3568         as_default="${cross_prefix}gcc"
3569         _depflags='-MMD'
3570         _cflags_speed='-O3'
3571         _cflags_size='-Os'
3572     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3573         _type=tms470
3574         _ident=$($_cc -version | head -n1 | tr -s ' ')
3575         _flags='--gcc --abi=eabi -me'
3576         _cc_e='-ppl -fe=$@'
3577         _cc_o='-fe=$@'
3578         _depflags='-ppa -ppd=$(@:.o=.d)'
3579         _cflags_speed='-O3 -mf=5'
3580         _cflags_size='-O3 -mf=2'
3581         _flags_filter=tms470_flags
3582     elif $_cc -v 2>&1 | grep -q clang; then
3583         _type=clang
3584         _ident=$($_cc --version | head -n1)
3585         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3586         _cflags_speed='-O3'
3587         _cflags_size='-Os'
3588     elif $_cc -V 2>&1 | grep -q Sun; then
3589         _type=suncc
3590         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3591         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3592         _DEPFLAGS='-xM1 -xc99'
3593         _ldflags='-std=c99'
3594         _cflags_speed='-O5'
3595         _cflags_size='-O5 -xspace'
3596         _flags_filter=suncc_flags
3597     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3598         _type=pathscale
3599         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3600         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3601         _cflags_speed='-O2'
3602         _cflags_size='-Os'
3603         _flags_filter='filter_out -Wdisabled-optimization'
3604     elif $_cc -v 2>&1 | grep -q Open64; then
3605         _type=open64
3606         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3607         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3608         _cflags_speed='-O2'
3609         _cflags_size='-Os'
3610         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3611     elif $_cc -V 2>&1 | grep -q Portland; then
3612         _type=pgi
3613         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3614         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3615         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3616         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3617         _cflags_noopt="-O"
3618         _flags_filter=pgi_flags
3619     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3620         _type=armasm
3621         _ident=$($_cc | head -n1)
3622         # 4509: "This form of conditional instruction is deprecated"
3623         _flags="-nologo -ignore 4509"
3624         _flags_filter=armasm_flags
3625     elif $_cc 2>&1 | grep -q Intel; then
3626         _type=icl
3627         _ident=$($_cc 2>&1 | head -n1)
3628         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3629         # Not only is O3 broken on 13.x+ but it is slower on all previous
3630         # versions (tested) as well.
3631         _cflags_speed="-O2"
3632         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3633         if $_cc 2>&1 | grep -q Linker; then
3634             _ld_o='-out:$@'
3635         else
3636             _ld_o='-Fe$@'
3637         fi
3638         _cc_o='-Fo$@'
3639         _cc_e='-P'
3640         _flags_filter=icl_flags
3641         _ld_lib='lib%.a'
3642         _ld_path='-libpath:'
3643         # -Qdiag-error to make icl error when seeing certain unknown arguments
3644         _flags='-nologo -Qdiag-error:4044,10157'
3645         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3646         # with MSVC which enables it by default.
3647         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3648         disable stripping
3649     elif $_cc 2>&1 | grep -q Microsoft; then
3650         _type=msvc
3651         _ident=$($_cc 2>&1 | head -n1)
3652         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3653         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3654         _cflags_speed="-O2"
3655         _cflags_size="-O1"
3656         if $_cc 2>&1 | grep -q Linker; then
3657             _ld_o='-out:$@'
3658         else
3659             _ld_o='-Fe$@'
3660         fi
3661         _cc_o='-Fo$@'
3662         _cc_e='-P -Fi$@'
3663         _flags_filter=msvc_flags
3664         _ld_lib='lib%.a'
3665         _ld_path='-libpath:'
3666         _flags='-nologo'
3667         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3668         disable stripping
3669     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3670         _type=cparser
3671         _ident=$($_cc --version | head -n1)
3672         _depflags='-MMD'
3673         _cflags_speed='-O4'
3674         _cflags_size='-O2'
3675         _flags_filter=cparser_flags
3676     fi
3677
3678     eval ${pfx}_type=\$_type
3679     eval ${pfx}_ident=\$_ident
3680 }
3681
3682 set_ccvars(){
3683     eval ${1}_C=\${_cc_c-\${${1}_C}}
3684     eval ${1}_E=\${_cc_e-\${${1}_E}}
3685     eval ${1}_O=\${_cc_o-\${${1}_O}}
3686
3687     if [ -n "$_depflags" ]; then
3688         eval ${1}_DEPFLAGS=\$_depflags
3689     else
3690         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3691         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3692         eval DEP${1}FLAGS=\$_flags
3693     fi
3694 }
3695
3696 probe_cc cc "$cc"
3697 cflags_filter=$_flags_filter
3698 cflags_speed=$_cflags_speed
3699 cflags_size=$_cflags_size
3700 cflags_noopt=$_cflags_noopt
3701 add_cflags $_flags $_cflags
3702 cc_ldflags=$_ldflags
3703 set_ccvars CC
3704
3705 probe_cc hostcc "$host_cc"
3706 host_cflags_filter=$_flags_filter
3707 add_host_cflags  $_flags $_cflags
3708 set_ccvars HOSTCC
3709
3710 test -n "$cc_type" && enable $cc_type ||
3711     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3712
3713 : ${as_default:=$cc}
3714 : ${dep_cc_default:=$cc}
3715 : ${ld_default:=$cc}
3716 : ${host_ld_default:=$host_cc}
3717 set_default ar as dep_cc ld host_ld windres
3718
3719 probe_cc as "$as"
3720 asflags_filter=$_flags_filter
3721 add_asflags $_flags $_cflags
3722 set_ccvars AS
3723
3724 probe_cc ld "$ld"
3725 ldflags_filter=$_flags_filter
3726 add_ldflags $_flags $_ldflags
3727 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3728 LD_O=${_ld_o-$LD_O}
3729 LD_LIB=${_ld_lib-$LD_LIB}
3730 LD_PATH=${_ld_path-$LD_PATH}
3731
3732 probe_cc hostld "$host_ld"
3733 host_ldflags_filter=$_flags_filter
3734 add_host_ldflags $_flags $_ldflags
3735 HOSTLD_O=${_ld_o-$HOSTLD_O}
3736
3737 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3738     probe_cc depcc "$dep_cc"
3739     CCDEP=${_DEPCMD:-$DEPCMD}
3740     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3741     DEPCCFLAGS=$_flags
3742 fi
3743
3744 if $ar 2>&1 | grep -q Microsoft; then
3745     arflags="-nologo"
3746     ar_o='-out:$@'
3747 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3748     arflags="rq"
3749     ar_o='$@'
3750 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3751     arflags='-Xany -r -c'
3752     ar_o='$@'
3753 elif $ar 2>&1 | grep -q "\[D\] "; then
3754     arflags="rcD"
3755     ar_o='$@'
3756 else
3757     arflags="rc"
3758     ar_o='$@'
3759 fi
3760
3761 add_cflags $extra_cflags
3762 add_cxxflags $extra_cxxflags
3763 add_asflags $extra_cflags
3764
3765 if test -n "$sysroot"; then
3766     case "$cc_type" in
3767         gcc|llvm_gcc|clang)
3768             add_cppflags --sysroot="$sysroot"
3769             add_ldflags --sysroot="$sysroot"
3770 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3771             add_cppflags -isysroot "$sysroot"
3772             add_ldflags -isysroot "$sysroot"
3773         ;;
3774         tms470)
3775             add_cppflags -I"$sysinclude"
3776             add_ldflags  --sysroot="$sysroot"
3777         ;;
3778     esac
3779 fi
3780
3781 if test "$cpu" = host; then
3782     enabled cross_compile &&
3783         die "--cpu=host makes no sense when cross-compiling."
3784
3785     case "$cc_type" in
3786         gcc|llvm_gcc)
3787             check_native(){
3788                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3789                 sed -n "/cc1.*$1=/{
3790                             s/.*$1=\\([^ ]*\\).*/\\1/
3791                             p
3792                             q
3793                         }" $TMPE
3794             }
3795             cpu=$(check_native -march || check_native -mcpu)
3796         ;;
3797     esac
3798
3799     test "${cpu:-host}" = host &&
3800         die "--cpu=host not supported with compiler $cc"
3801 fi
3802
3803 # Deal with common $arch aliases
3804 case "$arch" in
3805     aarch64|arm64)
3806         arch="aarch64"
3807     ;;
3808     arm*|iPad*|iPhone*)
3809         arch="arm"
3810     ;;
3811     mips*|IP*)
3812         arch="mips"
3813     ;;
3814     parisc*|hppa*)
3815         arch="parisc"
3816     ;;
3817     "Power Macintosh"|ppc*|powerpc*)
3818         arch="ppc"
3819     ;;
3820     s390|s390x)
3821         arch="s390"
3822     ;;
3823     sh4|sh)
3824         arch="sh4"
3825     ;;
3826     sun4u|sparc*)
3827         arch="sparc"
3828     ;;
3829     tilegx|tile-gx)
3830         arch="tilegx"
3831     ;;
3832     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3833         arch="x86"
3834     ;;
3835 esac
3836
3837 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3838 enable $arch
3839
3840 # Add processor-specific flags
3841 if enabled aarch64; then
3842
3843     case $cpu in
3844         armv*)
3845             cpuflags="-march=$cpu"
3846         ;;
3847         *)
3848             cpuflags="-mcpu=$cpu"
3849         ;;
3850     esac
3851
3852 elif enabled alpha; then
3853
3854     cpuflags="-mcpu=$cpu"
3855
3856 elif enabled arm; then
3857
3858     check_arm_arch() {
3859         check_cpp_condition stddef.h \
3860             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3861             $cpuflags
3862     }
3863
3864     probe_arm_arch() {
3865         if   check_arm_arch 4;        then echo armv4;
3866         elif check_arm_arch 4T;       then echo armv4t;
3867         elif check_arm_arch 5;        then echo armv5;
3868         elif check_arm_arch 5E;       then echo armv5e;
3869         elif check_arm_arch 5T;       then echo armv5t;
3870         elif check_arm_arch 5TE;      then echo armv5te;
3871         elif check_arm_arch 5TEJ;     then echo armv5te;
3872         elif check_arm_arch 6;        then echo armv6;
3873         elif check_arm_arch 6J;       then echo armv6j;
3874         elif check_arm_arch 6K;       then echo armv6k;
3875         elif check_arm_arch 6Z;       then echo armv6z;
3876         elif check_arm_arch 6ZK;      then echo armv6zk;
3877         elif check_arm_arch 6T2;      then echo armv6t2;
3878         elif check_arm_arch 7;        then echo armv7;
3879         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3880         elif check_arm_arch 7S;       then echo armv7-a;
3881         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3882         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3883         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3884         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3885         fi
3886     }
3887
3888     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3889
3890     case $cpu in
3891         armv*)
3892             cpuflags="-march=$cpu"
3893             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3894         ;;
3895         *)
3896             cpuflags="-mcpu=$cpu"
3897             case $cpu in
3898                 cortex-a*)                               subarch=armv7a  ;;
3899                 cortex-r*)                               subarch=armv7r  ;;
3900                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3901                 arm11*)                                  subarch=armv6   ;;
3902                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3903                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3904                 *)                             subarch=$(probe_arm_arch) ;;
3905             esac
3906         ;;
3907     esac
3908
3909     case "$subarch" in
3910         armv5t*)    enable fast_clz                ;;
3911         armv[6-8]*)
3912             enable fast_clz
3913             disabled fast_unaligned || enable fast_unaligned
3914             ;;
3915     esac
3916
3917 elif enabled avr32; then
3918
3919     case $cpu in
3920         ap7[02]0[0-2])
3921             subarch="avr32_ap"
3922             cpuflags="-mpart=$cpu"
3923         ;;
3924         ap)
3925             subarch="avr32_ap"
3926             cpuflags="-march=$cpu"
3927         ;;
3928         uc3[ab]*)
3929             subarch="avr32_uc"
3930             cpuflags="-mcpu=$cpu"
3931         ;;
3932         uc)
3933             subarch="avr32_uc"
3934             cpuflags="-march=$cpu"
3935         ;;
3936     esac
3937
3938 elif enabled bfin; then
3939
3940     cpuflags="-mcpu=$cpu"
3941
3942 elif enabled mips; then
3943
3944     cpuflags="-march=$cpu"
3945
3946     case $cpu in
3947         24kc)
3948             disable mips32r5
3949             disable mips64r6
3950             disable mipsfpu
3951             disable mipsdspr1
3952             disable mipsdspr2
3953             disable msa
3954         ;;
3955         24kf*)
3956             disable mips32r5
3957             disable mips64r6
3958             disable mipsdspr1
3959             disable mipsdspr2
3960             disable msa
3961         ;;
3962         24kec|34kc|1004kc)
3963             disable mips32r5
3964             disable mips64r6
3965             disable mipsfpu
3966             disable mipsdspr2
3967             disable msa
3968         ;;
3969         24kef*|34kf*|1004kf*)
3970             disable mips32r5
3971             disable mips64r6
3972             disable mipsdspr2
3973             disable msa
3974         ;;
3975         74kc)
3976             disable mips32r5
3977             disable mips64r6
3978             disable mipsfpu
3979             disable msa
3980         ;;
3981         74kf)
3982             disable mips32r5
3983             disable mips64r6
3984             disable msa
3985         ;;
3986         p5600)
3987             disable mips64r6
3988             disable mipsdspr1
3989             disable mipsdspr2
3990
3991             check_cflags "-mtune=p5600"
3992         ;;
3993         i6400)
3994             disable mips32r5
3995             disable mipsdspr1
3996             disable mipsdspr2
3997             disable mipsfpu
3998
3999             check_cflags "-mtune=i6400 -mabi=64"
4000             check_ldflags "-mabi=64"
4001         ;;
4002         loongson*)
4003             disable mipsfpu
4004             disable mips32r2
4005             disable mips32r5
4006             disable mips64r6
4007             disable mipsdspr1
4008             disable mipsdspr2
4009             disable msa
4010             enable local_aligned_8 local_aligned_16 local_aligned_32
4011             enable simd_align_16
4012             enable fast_64bit
4013             enable fast_clz
4014             enable fast_cmov
4015             enable fast_unaligned
4016             disable aligned_stack
4017             case $cpu in
4018                 loongson3*)
4019                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4020                 ;;
4021                 loongson2e)
4022                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4023                 ;;
4024                 loongson2f)
4025                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4026                 ;;
4027             esac
4028         ;;
4029         generic)
4030             disable mips32r5
4031             disable mips64r6
4032             disable msa
4033         ;;
4034     esac
4035
4036 elif enabled ppc; then
4037
4038     disable ldbrx
4039
4040     case $(tolower $cpu) in
4041         601|ppc601|powerpc601)
4042             cpuflags="-mcpu=601"
4043             disable altivec
4044         ;;
4045         603*|ppc603*|powerpc603*)
4046             cpuflags="-mcpu=603"
4047             disable altivec
4048         ;;
4049         604*|ppc604*|powerpc604*)
4050             cpuflags="-mcpu=604"
4051             disable altivec
4052         ;;
4053         g3|75*|ppc75*|powerpc75*)
4054             cpuflags="-mcpu=750"
4055             disable altivec
4056         ;;
4057         g4|745*|ppc745*|powerpc745*)
4058             cpuflags="-mcpu=7450"
4059             disable vsx
4060         ;;
4061         74*|ppc74*|powerpc74*)
4062             cpuflags="-mcpu=7400"
4063             disable vsx
4064         ;;
4065         g5|970|ppc970|powerpc970)
4066             cpuflags="-mcpu=970"
4067             disable vsx
4068         ;;
4069         power[3-6]*)
4070             cpuflags="-mcpu=$cpu"
4071             disable vsx
4072         ;;
4073         power[7-8]*)
4074             cpuflags="-mcpu=$cpu"
4075         ;;
4076         cell)
4077             cpuflags="-mcpu=cell"
4078             enable ldbrx
4079             disable vsx
4080         ;;
4081         e500mc)
4082             cpuflags="-mcpu=e500mc"
4083             disable altivec
4084         ;;
4085         e500v2)
4086             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4087             disable altivec
4088             disable dcbzl
4089         ;;
4090         e500)
4091             cpuflags="-mcpu=8540 -mhard-float"
4092             disable altivec
4093             disable dcbzl
4094         ;;
4095     esac
4096
4097 elif enabled sparc; then
4098
4099     case $cpu in
4100         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4101             cpuflags="-mcpu=$cpu"
4102         ;;
4103         ultrasparc*|niagara[234])
4104             cpuflags="-mcpu=$cpu"
4105         ;;
4106     esac
4107
4108 elif enabled x86; then
4109
4110     case $cpu in
4111         i[345]86|pentium)
4112             cpuflags="-march=$cpu"
4113             disable i686
4114             disable mmx
4115         ;;
4116         # targets that do NOT support nopl and conditional mov (cmov)
4117         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4118             cpuflags="-march=$cpu"
4119             disable i686
4120         ;;
4121         # targets that do support nopl and conditional mov (cmov)
4122         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4123         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4124             cpuflags="-march=$cpu"
4125             enable i686
4126             enable fast_cmov
4127         ;;
4128         # targets that do support conditional mov but on which it's slow
4129         pentium4|pentium4m|prescott|nocona)
4130             cpuflags="-march=$cpu"
4131             enable i686
4132             disable fast_cmov
4133         ;;
4134     esac
4135
4136 fi
4137
4138 if [ "$cpu" != generic ]; then
4139     add_cflags  $cpuflags
4140     add_asflags $cpuflags
4141 fi
4142
4143 # compiler sanity check
4144 check_exec <<EOF
4145 int main(void){ return 0; }
4146 EOF
4147 if test "$?" != 0; then
4148     echo "$cc is unable to create an executable file."
4149     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4150         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4151         echo "Only do this if you know what cross compiling means."
4152     fi
4153     die "C compiler test failed."
4154 fi
4155
4156 add_cppflags -D_ISOC99_SOURCE
4157 add_cxxflags -D__STDC_CONSTANT_MACROS
4158 check_cflags -std=c99
4159 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4160 #include <stdlib.h>
4161 EOF
4162 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4163 #include <stdlib.h>
4164 EOF
4165
4166 add_host_cppflags -D_ISOC99_SOURCE
4167 check_host_cflags -std=c99
4168 check_host_cflags -Wall
4169 check_host_cflags -O3
4170
4171 check_64bit(){
4172     arch32=$1
4173     arch64=$2
4174     expr=$3
4175     check_code cc "" "int test[2*($expr) - 1]" &&
4176         subarch=$arch64 || subarch=$arch32
4177 }
4178
4179 case "$arch" in
4180     aarch64|alpha|ia64)
4181         spic=$shared
4182     ;;
4183     mips)
4184         check_64bit mips mips64 '_MIPS_SIM > 1'
4185         spic=$shared
4186     ;;
4187     parisc)
4188         check_64bit parisc parisc64 'sizeof(void *) > 4'
4189         spic=$shared
4190     ;;
4191     ppc)
4192         check_64bit ppc ppc64 'sizeof(void *) > 4'
4193         spic=$shared
4194     ;;
4195     s390)
4196         check_64bit s390 s390x 'sizeof(void *) > 4'
4197         spic=$shared
4198     ;;
4199     sparc)
4200         check_64bit sparc sparc64 'sizeof(void *) > 4'
4201         spic=$shared
4202     ;;
4203     x86)
4204         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4205         # Treat x32 as x64 for now. Note it also needs spic=$shared
4206         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4207             subarch=x86_64
4208         if test "$subarch" = "x86_64"; then
4209             spic=$shared
4210         fi
4211     ;;
4212     ppc)
4213         check_cc <<EOF && subarch="ppc64"
4214         int test[(int)sizeof(char*) - 7];
4215 EOF
4216     ;;
4217 esac
4218
4219 enable $subarch
4220 enabled spic && enable_weak pic
4221
4222 # OS specific
4223 case $target_os in
4224     aix)
4225         SHFLAGS=-shared
4226         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4227         enabled shared && add_ldflags -Wl,-brtl
4228         ;;
4229     android)
4230         disable symver
4231         enable section_data_rel_ro
4232         SLIB_INSTALL_NAME='$(SLIBNAME)'
4233         SLIB_INSTALL_LINKS=
4234         # soname not set on purpose
4235         SHFLAGS=-shared
4236         ;;
4237     haiku)
4238         prefix_default="/boot/common"
4239         network_extralibs="-lnetwork"
4240         host_libs=
4241         ;;
4242     sunos)
4243         SHFLAGS='-shared -Wl,-h,$$(@F)'
4244         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4245         network_extralibs="-lsocket -lnsl"
4246         add_cppflags -D__EXTENSIONS__
4247         # When using suncc to build, the Solaris linker will mark
4248         # an executable with each instruction set encountered by
4249         # the Solaris assembler.  As our libraries contain their own
4250         # guards for processor-specific code, instead suppress
4251         # generation of the HWCAPS ELF section on Solaris x86 only.
4252         enabled_all suncc x86 &&
4253             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4254             add_ldflags -Wl,-M,mapfile
4255         nm_default='nm -P -g'
4256         ;;
4257     netbsd)
4258         disable symver
4259         oss_indev_extralibs="-lossaudio"
4260         oss_outdev_extralibs="-lossaudio"
4261         enabled gcc || check_ldflags -Wl,-zmuldefs
4262         ;;
4263     openbsd|bitrig)
4264         disable symver
4265         SHFLAGS='-shared'
4266         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4267         SLIB_INSTALL_LINKS=
4268         oss_indev_extralibs="-lossaudio"
4269         oss_outdev_extralibs="-lossaudio"
4270         ;;
4271     dragonfly)
4272         disable symver
4273         ;;
4274     freebsd)
4275         ;;
4276     bsd/os)
4277         add_extralibs -lpoll -lgnugetopt
4278         strip="strip -d"
4279         ;;
4280     darwin)
4281         enabled ppc && add_asflags -force_cpusubtype_ALL
4282         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4283         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4284         strip="${strip} -x"
4285         add_ldflags -Wl,-dynamic,-search_paths_first
4286         SLIBSUF=".dylib"
4287         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4288         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4289         objformat="macho"
4290         enabled x86_64 && objformat="macho64"
4291         enabled_any pic shared x86_64 ||
4292             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4293         ;;
4294     mingw32*)
4295         if test $target_os = "mingw32ce"; then
4296             disable network
4297         else
4298             target_os=mingw32
4299         fi
4300         LIBTARGET=i386
4301         if enabled x86_64; then
4302             LIBTARGET="i386:x86-64"
4303         elif enabled arm; then
4304             LIBTARGET=arm-wince
4305         fi
4306         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4307         check_ldflags -Wl,--nxcompat
4308         check_ldflags -Wl,--dynamicbase
4309         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4310         shlibdir_default="$bindir_default"
4311         SLIBPREF=""
4312         SLIBSUF=".dll"
4313         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4314         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4315         dlltool="${cross_prefix}dlltool"
4316         if check_cmd lib.exe -list; then
4317             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4318             if enabled x86_64; then
4319                 LIBTARGET=x64
4320             fi
4321         elif check_cmd $dlltool --version; then
4322             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4323         fi
4324         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4325         SLIB_INSTALL_LINKS=
4326         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4327         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4328         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4329         objformat="win32"
4330         ranlib=:
4331         enable dos_paths
4332         ;;
4333     win32|win64)
4334         disable symver
4335         if enabled shared; then
4336             # Link to the import library instead of the normal static library
4337             # for shared libs.
4338             LD_LIB='%.lib'
4339             # Cannot build both shared and static libs with MSVC or icl.
4340             disable static
4341         fi
4342         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4343         shlibdir_default="$bindir_default"
4344         SLIBPREF=""
4345         SLIBSUF=".dll"
4346         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4347         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4348         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4349         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4350         SLIB_INSTALL_LINKS=
4351         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4352         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4353         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4354         objformat="win32"
4355         ranlib=:
4356         enable dos_paths
4357         ;;
4358     cygwin*)
4359         target_os=cygwin
4360         shlibdir_default="$bindir_default"
4361         SLIBPREF="cyg"
4362         SLIBSUF=".dll"
4363         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4364         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4365         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4366         SLIB_INSTALL_LINKS=
4367         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4368         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4369         objformat="win32"
4370         enable dos_paths
4371         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4372         ;;
4373     *-dos|freedos|opendos)
4374         network_extralibs="-lsocket"
4375         objformat="coff"
4376         enable dos_paths
4377         add_cppflags -U__STRICT_ANSI__
4378         ;;
4379     linux)
4380         enable dv1394
4381         enable section_data_rel_ro
4382         ;;
4383     irix*)
4384         target_os=irix
4385         ranlib="echo ignoring ranlib"
4386         ;;
4387     os/2*)
4388         strip="lxlite -CS"
4389         ln_s="cp -f"
4390         objformat="aout"
4391         add_cppflags -D_GNU_SOURCE
4392         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4393         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4394         LIBSUF="_s.a"
4395         SLIBPREF=""
4396         SLIBSUF=".dll"
4397         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4398         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4399         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4400             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4401             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4402             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4403             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4404         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4405             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4406         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4407         enable dos_paths
4408         enable_weak os2threads
4409         ;;
4410     gnu/kfreebsd)
4411         add_cppflags -D_BSD_SOURCE
4412         ;;
4413     gnu)
4414         ;;
4415     qnx)
4416         add_cppflags -D_QNX_SOURCE
4417         network_extralibs="-lsocket"
4418         ;;
4419     symbian)
4420         SLIBSUF=".dll"
4421         enable dos_paths
4422         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4423         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4424         add_ldflags -Wl,--target1-abs,--no-undefined \
4425                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4426                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4427         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4428                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4429                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4430         ;;
4431     osf1)
4432         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4433         ;;
4434     minix)
4435         ;;
4436     plan9)
4437         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4438                      -D_REENTRANT_SOURCE        \
4439                      -D_RESEARCH_SOURCE         \
4440                      -DFD_SETSIZE=96            \
4441                      -DHAVE_SOCK_OPTS
4442         add_compat strtod.o strtod=avpriv_strtod
4443         network_extralibs='-lbsd'
4444         exeobjs=compat/plan9/main.o
4445         disable ffserver
4446         cp_f='cp'
4447         ;;
4448     none)
4449         ;;
4450     *)
4451         die "Unknown OS '$target_os'."
4452         ;;
4453 esac
4454
4455 # determine libc flavour
4456
4457 probe_libc(){
4458     pfx=$1
4459     pfx_no_=${pfx%_}
4460     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4461     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4462         eval ${pfx}libc_type=uclibc
4463         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4464     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4465         eval ${pfx}libc_type=glibc
4466         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4467     # MinGW headers can be installed on Cygwin, so check for newlib first.
4468     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4469         eval ${pfx}libc_type=newlib
4470         add_${pfx}cppflags -U__STRICT_ANSI__
4471     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4472     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4473         eval ${pfx}libc_type=mingw64
4474         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4475             add_compat msvcrt/snprintf.o
4476             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4477         fi
4478         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4479         eval test \$${pfx_no_}cc_type = "gcc" &&
4480             add_${pfx}cppflags -D__printf__=__gnu_printf__
4481     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4482          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4483         eval ${pfx}libc_type=mingw32
4484         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4485             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4486             die "ERROR: MinGW32 runtime version must be >= 3.15."
4487         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4488         eval test \$${pfx_no_}cc_type = "gcc" &&
4489             add_${pfx}cppflags -D__printf__=__gnu_printf__
4490     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4491         eval ${pfx}libc_type=msvcrt
4492         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4493             if [ "$pfx" = host_ ]; then
4494                 add_host_cppflags -Dsnprintf=_snprintf
4495             else
4496                 add_compat strtod.o strtod=avpriv_strtod
4497                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4498                                              _snprintf=avpriv_snprintf  \
4499                                              vsnprintf=avpriv_vsnprintf
4500             fi
4501         fi
4502         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4503         # 0x601 by default unless something else is set by the user.
4504         # This can easily lead to us detecting functions only present
4505         # in such new versions and producing binaries requiring windows 7.0.
4506         # Therefore explicitly set the default to XP unless the user has
4507         # set something else on the command line.
4508         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4509             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4510     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4511         eval ${pfx}libc_type=klibc
4512     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4513         eval ${pfx}libc_type=bionic
4514     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4515         eval ${pfx}libc_type=solaris
4516         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4517     fi
4518     check_${pfx}cc <<EOF
4519 #include <time.h>
4520 void *v = localtime_r;
4521 EOF
4522 test "$?" != 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
4523 #include <time.h>
4524 void *v = localtime_r;
4525 EOF
4526
4527 }
4528
4529 probe_libc
4530 test -n "$libc_type" && enable libc_$libc_type
4531 probe_libc host_
4532 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4533
4534 case $libc_type in
4535     bionic)
4536         add_compat strtod.o strtod=avpriv_strtod
4537         ;;
4538 esac
4539
4540 # hacks for compiler/libc/os combinations
4541
4542 if enabled_all tms470 libc_glibc; then
4543     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4544     add_cppflags -D__USER_LABEL_PREFIX__=
4545     add_cppflags -D__builtin_memset=memset
4546     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4547     add_cflags   -pds=48    # incompatible redefinition of macro
4548 fi
4549
4550 if enabled_all ccc libc_glibc; then
4551     add_ldflags -Wl,-z,now  # calls to libots crash without this
4552 fi
4553
4554 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4555     add_cppflags '-I\$(SRC_PATH)/compat/float'
4556
4557 esc(){
4558     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4559 }
4560
4561 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4562
4563 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4564
4565 set_default libdir
4566 : ${shlibdir_default:="$libdir"}
4567 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4568
4569 set_default $PATHS_LIST
4570 set_default nm
4571
4572 # we need to build at least one lib type
4573 if ! enabled_any static shared; then
4574     cat <<EOF
4575 At least one library type must be built.
4576 Specify --enable-static to build the static libraries or --enable-shared to
4577 build the shared libraries as well. To only build the shared libraries specify
4578 --disable-static in addition to --enable-shared.
4579 EOF
4580     exit 1;
4581 fi
4582
4583 die_license_disabled() {
4584     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4585 }
4586
4587 die_license_disabled_gpl() {
4588     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4589 }
4590
4591 die_license_disabled gpl frei0r
4592 die_license_disabled gpl libcdio
4593 die_license_disabled gpl libsmbclient
4594 die_license_disabled gpl libutvideo
4595 die_license_disabled gpl libvidstab
4596 die_license_disabled gpl libx264
4597 die_license_disabled gpl libx265
4598 die_license_disabled gpl libxavs
4599 die_license_disabled gpl libxvid
4600 die_license_disabled gpl libzvbi
4601 die_license_disabled gpl x11grab
4602
4603 die_license_disabled nonfree libaacplus
4604 die_license_disabled nonfree libfaac
4605 die_license_disabled nonfree nvenc
4606 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4607 enabled gpl && die_license_disabled_gpl nonfree openssl
4608
4609 die_license_disabled version3 libopencore_amrnb
4610 die_license_disabled version3 libopencore_amrwb
4611 die_license_disabled version3 libsmbclient
4612 die_license_disabled version3 libvo_aacenc
4613 die_license_disabled version3 libvo_amrwbenc
4614
4615 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4616
4617 disabled optimizations || check_cflags -fomit-frame-pointer
4618
4619 enable_weak_pic() {
4620     disabled pic && return
4621     enable pic
4622     add_cppflags -DPIC
4623     case "$target_os" in
4624     mingw*|cygwin*)
4625         ;;
4626     *)
4627         add_cflags -fPIC
4628         ;;
4629     esac
4630     add_asflags  -fPIC
4631 }
4632
4633 enabled pic && enable_weak_pic
4634
4635 check_cc <<EOF || die "Symbol mangling check failed."
4636 int ff_extern;
4637 EOF
4638 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4639 extern_prefix=${sym%%ff_extern*}
4640
4641 check_cc <<EOF && enable_weak inline_asm
4642 void foo(void) { __asm__ volatile ("" ::); }
4643 EOF
4644
4645 _restrict=
4646 for restrict_keyword in restrict __restrict__ __restrict; do
4647     check_cc <<EOF && _restrict=$restrict_keyword && break
4648 void foo(char * $restrict_keyword p);
4649 EOF
4650 done
4651
4652 check_cc <<EOF && enable pragma_deprecated
4653 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4654 EOF
4655
4656 check_cc <<EOF && enable attribute_packed
4657 struct { int x; } __attribute__((packed)) x;
4658 EOF
4659
4660 check_cc <<EOF && enable attribute_may_alias
4661 union { int x; } __attribute__((may_alias)) x;
4662 EOF
4663
4664 check_cc <<EOF || die "endian test failed"
4665 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4666 EOF
4667 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4668
4669 if ! enabled ppc64 || enabled bigendian; then
4670     disable vsx
4671 fi
4672
4673 check_gas() {
4674     log "check_gas using '$as' as AS"
4675     # :vararg is used on aarch64, arm and ppc altivec
4676     check_as <<EOF || return 1
4677 .macro m n, y:vararg=0
4678 \n: .int \y
4679 .endm
4680 m x
4681 EOF
4682     # .altmacro is only used in arm asm
4683     ! enabled arm || check_as <<EOF || return 1
4684 .altmacro
4685 EOF
4686     enable gnu_as
4687     return 0
4688 }
4689
4690 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4691     nogas=:
4692     enabled_any arm aarch64 && nogas=die
4693     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4694     as_noop=-v
4695
4696     case $as_type in
4697         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4698         gcc)  gaspp_as_type=gas ;;
4699         *)    gaspp_as_type=$as_type ;;
4700     esac
4701
4702     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4703
4704     test "${as#*gas-preprocessor.pl}" != "$as" ||
4705     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4706         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4707
4708     if ! check_gas ; then
4709         as=${gas:=$as}
4710         check_gas || \
4711             $nogas "GNU assembler not found, install/update gas-preprocessor"
4712     fi
4713
4714     check_as <<EOF && enable as_func
4715 .func test
4716 .endfunc
4717 EOF
4718 fi
4719
4720 check_inline_asm inline_asm_labels '"1:\n"'
4721
4722 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4723
4724 if enabled aarch64; then
4725     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4726     # internal assembler in clang 3.3 does not support this instruction
4727     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4728     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4729
4730     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4731
4732 elif enabled alpha; then
4733
4734     check_cflags -mieee
4735
4736 elif enabled arm; then
4737
4738     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4739 float func(float a, float b){ return a+b; }
4740 EOF
4741
4742     enabled thumb && check_cflags -mthumb || check_cflags -marm
4743
4744     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4745         enable vfp_args
4746     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4747         case "${cross_prefix:-$cc}" in
4748             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4749             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4750 __asm__ (".eabi_attribute 28, 1");
4751 int main(void) { return 0; }
4752 EOF
4753         esac
4754         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4755     fi
4756
4757     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4758     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4759     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4760     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4761     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4762     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4763     enabled setend  && check_insn setend  'setend be'
4764
4765     [ $target_os = linux ] || [ $target_os = android ] ||
4766         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4767             $ARCH_EXT_LIST_ARM
4768
4769     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4770
4771     check_as <<EOF && enable as_dn_directive
4772 ra .dn d0.i16
4773 .unreq ra
4774 EOF
4775
4776     # llvm's integrated assembler supports .object_arch from llvm 3.5
4777     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4778 .object_arch armv4
4779 EOF
4780
4781     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4782
4783 elif enabled mips; then
4784
4785     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
4786     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
4787     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
4788
4789     # Enable minimum ISA based on selected options
4790     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then
4791         add_cflags "-mips64r2"
4792         add_asflags "-mips64r2"
4793     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
4794         add_cflags "-mips64"
4795         add_asflags "-mips64"
4796     elif enabled mipsdspr1 || enabled mipsdspr2; then
4797         add_cflags "-mips32r2 -mfp32"
4798         add_asflags "-mips32r2 -mfp32"
4799     elif enabled mips32r5 || enabled mips64r6; then
4800         check_cflags "-mfp64"
4801         check_ldflags "-mfp64"
4802     fi
4803
4804     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&
4805      check_ldflags "-mips32r5" &&
4806      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'
4807     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&
4808      check_ldflags "-mips64r6" &&
4809      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'
4810     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4811      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4812     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4813      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4814     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4815      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4816     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
4817      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
4818
4819     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"
4820     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"
4821     enabled msa && add_asflags "-mmsa"
4822
4823 elif enabled parisc; then
4824
4825     if enabled gcc; then
4826         case $($cc -dumpversion) in
4827             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4828         esac
4829     fi
4830
4831 elif enabled ppc; then
4832
4833     enable local_aligned_8 local_aligned_16 local_aligned_32
4834
4835     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4836     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4837     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4838     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4839
4840     # AltiVec flags: The FSF version of GCC differs from the Apple version
4841     if enabled altivec; then
4842         check_cflags -maltivec -mabi=altivec &&
4843         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4844         check_cflags -faltivec
4845
4846         # check if our compiler supports Motorola AltiVec C API
4847         check_cc <<EOF || disable altivec
4848 $inc_altivec_h
4849 int main(void) {
4850     vector signed int v1 = (vector signed int) { 0 };
4851     vector signed int v2 = (vector signed int) { 1 };
4852     v1 = vec_add(v1, v2);
4853     return 0;
4854 }
4855 EOF
4856
4857         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4858     fi
4859
4860     if enabled vsx; then
4861         check_cflags -mvsx &&
4862         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4863     fi
4864
4865     if enabled power8; then
4866         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4867     fi
4868
4869 elif enabled x86; then
4870
4871     check_builtin rdtsc    intrin.h   "__rdtsc()"
4872     check_builtin mm_empty mmintrin.h "_mm_empty()"
4873
4874     enable local_aligned_8 local_aligned_16 local_aligned_32
4875
4876     # check whether EBP is available on x86
4877     # As 'i' is stored on the stack, this program will crash
4878     # if the base pointer is used to access it because the
4879     # base pointer is cleared in the inline assembly code.
4880     check_exec_crash <<EOF && enable ebp_available
4881 volatile int i=0;
4882 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4883 return i;
4884 EOF
4885
4886     # check whether EBX is available on x86
4887     check_inline_asm ebx_available '""::"b"(0)' &&
4888         check_inline_asm ebx_available '"":::"%ebx"'
4889
4890     # check whether xmm clobbers are supported
4891     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4892
4893     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4894         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4895
4896     # check whether binutils is new enough to compile SSSE3/MMXEXT
4897     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4898     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4899
4900     if ! disabled_any asm mmx yasm; then
4901         if check_cmd $yasmexe --version; then
4902             enabled x86_64 && yasm_extra="-m amd64"
4903             yasm_debug="-g dwarf2"
4904         elif check_cmd nasm -v; then
4905             yasmexe=nasm
4906             yasm_debug="-g -F dwarf"
4907             if enabled x86_64; then
4908                 case "$objformat" in
4909                     elf)   objformat=elf64 ;;
4910                     win32) objformat=win64 ;;
4911                 esac
4912             fi
4913         fi
4914
4915         YASMFLAGS="-f $objformat $yasm_extra"
4916         enabled pic               && append YASMFLAGS "-DPIC"
4917         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4918         case "$objformat" in
4919             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4920         esac
4921
4922         check_yasm "movbe ecx, [5]" && enable yasm ||
4923             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4924         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4925         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4926         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4927         check_yasm "CPU amdnop" || disable cpunop
4928     fi
4929
4930     case "$cpu" in
4931         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4932             disable fast_clz
4933         ;;
4934     esac
4935
4936 fi
4937
4938 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4939
4940 check_ldflags -Wl,--as-needed
4941 check_ldflags -Wl,-z,noexecstack
4942
4943 if check_func dlopen; then
4944     ldl=
4945 elif check_func dlopen -ldl; then
4946     ldl=-ldl
4947 fi
4948
4949 frei0r_filter_extralibs='$ldl'
4950 frei0r_src_filter_extralibs='$ldl'
4951 ladspa_filter_extralibs='$ldl'
4952 nvenc_encoder_extralibs='$ldl'
4953
4954 if ! disabled network; then
4955     check_func getaddrinfo $network_extralibs
4956     check_func getservbyport $network_extralibs
4957     check_func inet_aton $network_extralibs
4958
4959     check_type netdb.h "struct addrinfo"
4960     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4961     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4962     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4963     check_type poll.h "struct pollfd"
4964     check_type netinet/sctp.h "struct sctp_event_subscribe"
4965     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4966     check_type netinet/in.h "struct sockaddr_in6"
4967     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4968     check_type "sys/types.h sys/socket.h" socklen_t
4969
4970     # Prefer arpa/inet.h over winsock2
4971     if check_header arpa/inet.h ; then
4972         check_func closesocket
4973     elif check_header winsock2.h ; then
4974         check_func_headers winsock2.h closesocket -lws2 &&
4975             network_extralibs="-lws2" ||
4976         { check_func_headers winsock2.h closesocket -lws2_32 &&
4977             network_extralibs="-lws2_32"; } || disable winsock2_h network
4978         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4979
4980         check_type ws2tcpip.h socklen_t
4981         check_type ws2tcpip.h "struct addrinfo"
4982         check_type ws2tcpip.h "struct group_source_req"
4983         check_type ws2tcpip.h "struct ip_mreq_source"
4984         check_type ws2tcpip.h "struct ipv6_mreq"
4985         check_type winsock2.h "struct pollfd"
4986         check_struct winsock2.h "struct sockaddr" sa_len
4987         check_type ws2tcpip.h "struct sockaddr_in6"
4988         check_type ws2tcpip.h "struct sockaddr_storage"
4989     else
4990         disable network
4991     fi
4992 fi
4993
4994 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4995 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
4996 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4997 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4998 check_builtin sarestart signal.h "SA_RESTART"
4999 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5000 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5001 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5002
5003 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5004 check_func  ${malloc_prefix}memalign            && enable memalign
5005 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5006
5007 check_func  access
5008 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5009 check_func  fcntl
5010 check_func  fork
5011 check_func  gethrtime
5012 check_func  getopt
5013 check_func  getrusage
5014 check_func  gettimeofday
5015 check_func  isatty
5016 check_func  mach_absolute_time
5017 check_func  mkstemp
5018 check_func  mmap
5019 check_func  mprotect
5020 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5021 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5022 check_func  sched_getaffinity
5023 check_func  setrlimit
5024 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5025 check_func  strerror_r
5026 check_func  sysconf
5027 check_func  sysctl
5028 check_func  usleep
5029
5030 check_func_headers conio.h kbhit
5031 check_func_headers io.h setmode
5032 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5033 check_func_headers stdlib.h getenv
5034
5035 check_func_headers windows.h CoTaskMemFree -lole32
5036 check_func_headers windows.h GetProcessAffinityMask
5037 check_func_headers windows.h GetProcessTimes
5038 check_func_headers windows.h GetSystemTimeAsFileTime
5039 check_func_headers windows.h MapViewOfFile
5040 check_func_headers windows.h PeekNamedPipe
5041 check_func_headers windows.h SetConsoleTextAttribute
5042 check_func_headers windows.h SetConsoleCtrlHandler
5043 check_func_headers windows.h Sleep
5044 check_func_headers windows.h VirtualAlloc
5045 check_struct windows.h "CONDITION_VARIABLE" Ptr
5046 check_func_headers glob.h glob
5047 enabled xlib &&
5048     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5049
5050 check_header direct.h
5051 check_header dlfcn.h
5052 check_header d3d11.h
5053 check_header dxva.h
5054 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5055 check_header io.h
5056 check_header libcrystalhd/libcrystalhd_if.h
5057 check_header mach/mach_time.h
5058 check_header malloc.h
5059 check_header net/udplite.h
5060 check_header poll.h
5061 check_header sys/mman.h
5062 check_header sys/param.h
5063 check_header sys/resource.h
5064 check_header sys/select.h
5065 check_header sys/time.h
5066 check_header sys/un.h
5067 check_header termios.h
5068 check_header unistd.h
5069 check_header valgrind/valgrind.h
5070 check_header vdpau/vdpau.h
5071 check_header vdpau/vdpau_x11.h
5072 check_header VideoDecodeAcceleration/VDADecoder.h
5073 check_header windows.h
5074 check_header X11/extensions/XvMClib.h
5075 check_header asm/types.h
5076
5077 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5078 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5079 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5080
5081 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5082
5083 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
5084 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5085 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0600
5086
5087 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5088
5089 if ! disabled w32threads && ! enabled pthreads; then
5090     check_func_headers "windows.h process.h" _beginthreadex &&
5091         enable w32threads || disable w32threads
5092 fi
5093
5094 # check for some common methods of building with pthread support
5095 # do this before the optional library checks as some of them require pthreads
5096 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5097     enable pthreads
5098     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5099         add_cflags -pthread
5100         add_extralibs -pthread
5101     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5102         add_cflags -pthreads
5103         add_extralibs -pthreads
5104     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5105         add_cflags -ldl -pthread
5106         add_extralibs -ldl -pthread
5107     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5108         add_extralibs -lpthreadGC2
5109     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5110         :
5111     elif ! check_func pthread_join && ! check_func pthread_create; then
5112         disable pthreads
5113     fi
5114     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5115 fi
5116
5117
5118 if enabled pthreads; then
5119   check_func pthread_cancel
5120 fi
5121
5122 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5123 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5124 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5125
5126 check_lib math.h sin -lm && LIBM="-lm"
5127 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5128
5129 atan2f_args=2
5130 ldexpf_args=2
5131 powf_args=2
5132
5133 for func in $MATH_FUNCS; do
5134     eval check_mathfunc $func \${${func}_args:-1}
5135 done
5136
5137 # these are off by default, so fail if requested and not available
5138 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5139 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5140                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5141 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5142                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5143                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5144 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5145 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5146 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5147 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5148 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5149 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5150 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5151 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5152 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5153 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5154                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5155                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5156 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5157 enabled libdcadec         && require_pkg_config dcadec libdcadec/dca_context.h dcadec_context_create &&
5158                              check_struct libdcadec/dca_context.h "struct dcadec_exss_info" matrix_encoding
5159 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5160 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5161                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5162                                  warn "using libfdk without pkg-config"; } }
5163 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"
5164 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5165 enabled fontconfig        && enable libfontconfig
5166 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5167 enabled libfreetype       && require_libfreetype
5168 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5169 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5170 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5171                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5172                                done || die "ERROR: libgsm not found"; }
5173 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5174 enabled libkvazaar        && require2 libkvazaar kvazaar.h kvz_api_get -lkvazaar
5175 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5176 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5177 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5178 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5179 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5180 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5181 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5182 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5183 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
5184                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5185                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5186                                die "ERROR: libopenjpeg not found"; }
5187 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5188 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5189 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5190 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5191 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5192 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5193 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5194                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5195 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5196 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
5197 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5198 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5199 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
5200     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
5201     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
5202 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5203 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5204                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5205                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5206 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5207 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5208 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5209 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5210 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5211 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5212
5213 enabled libvpx            && {
5214     enabled libvpx_vp8_decoder && {
5215         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5216             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5217                 die "ERROR: libvpx decoder version must be >=0.9.1";
5218     }
5219     enabled libvpx_vp8_encoder && {
5220         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5221             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5222                 die "ERROR: libvpx encoder version must be >=0.9.7";
5223     }
5224     enabled libvpx_vp9_decoder && {
5225         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5226             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5227                 disable libvpx_vp9_decoder;
5228     }
5229     enabled libvpx_vp9_encoder && {
5230         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5231             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5232                 disable libvpx_vp9_encoder;
5233     }
5234     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5235         die "libvpx enabled but no supported decoders found"
5236     fi
5237 }
5238
5239 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5240 enabled libwebp           && {
5241     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5242     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5243 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5244                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5245                                  warn "using libx264 without pkg-config"; } } &&
5246                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5247                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5248                              { check_cpp_condition x264.h "X264_MPEG2" &&
5249                                enable libx262; }
5250 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5251                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5252                                die "ERROR: libx265 version must be >= 57."; }
5253 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5254 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5255 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5256 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5257 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5258                                 { ! enabled cross_compile && {
5259                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5260                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5261                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5262                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5263                                die "ERROR: mmal not found"; }
5264 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5265                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5266                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5267                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5268 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5269                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5270                                die "ERROR: openal not found"; } &&
5271                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5272                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5273 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5274                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5275                                die "ERROR: opencl not found"; } &&
5276                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5277                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5278                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5279 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5280                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5281                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5282                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5283                                die "ERROR: opengl not found."
5284                              }
5285 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5286                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5287                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5288                                die "ERROR: openssl not found"; }
5289 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
5290
5291 if enabled gnutls; then
5292     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
5293     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
5294 fi
5295
5296 # libdc1394 check
5297 if enabled libdc1394; then
5298     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5299         enable libdc1394_2; } ||
5300     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5301         enable libdc1394_1; } ||
5302     die "ERROR: No version of libdc1394 found "
5303 fi
5304 if ! disabled sdl; then
5305     SDL_CONFIG="${cross_prefix}sdl-config"
5306     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5307         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5308         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5309         enable sdl
5310     else
5311         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5312             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5313             sdl_libs=$("${SDL_CONFIG}" --libs)
5314             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5315             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5316             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5317             enable sdl
5318         elif enabled sdl ; then
5319             die "ERROR: SDL not found"
5320         else
5321             disable sdl
5322         fi
5323     fi
5324 fi
5325 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5326
5327 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5328     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5329     enable securetransport; }
5330
5331 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5332 enabled makeinfo \
5333     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5334     && enable makeinfo_html || disable makeinfo_html
5335 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5336 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5337 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5338 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5339
5340 check_header linux/fb.h
5341 check_header linux/videodev.h
5342 check_header linux/videodev2.h
5343 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5344
5345 check_header sys/videoio.h
5346 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5347
5348 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5349 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5350 # w32api 3.12 had it defined wrong
5351 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5352
5353 check_type "dshow.h" IBaseFilter
5354
5355 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5356 { check_header dev/bktr/ioctl_meteor.h &&
5357   check_header dev/bktr/ioctl_bt848.h; } ||
5358 { check_header machine/ioctl_meteor.h &&
5359   check_header machine/ioctl_bt848.h; } ||
5360 { check_header dev/video/meteor/ioctl_meteor.h &&
5361   check_header dev/video/bktr/ioctl_bt848.h; } ||
5362 check_header dev/ic/bt8xx.h
5363
5364 check_header sndio.h
5365 if check_struct sys/soundcard.h audio_buf_info bytes; then
5366     enable_safe sys/soundcard.h
5367 else
5368     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5369     #include <sys/soundcard.h>
5370     audio_buf_info abc;
5371 EOF
5372 fi
5373 check_header soundcard.h
5374
5375 enabled_any alsa_indev alsa_outdev &&
5376     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5377
5378 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5379     check_func jack_port_get_latency_range -ljack
5380
5381 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5382
5383 if enabled libcdio; then
5384     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5385     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5386     die "ERROR: No usable libcdio/cdparanoia found"
5387 fi
5388
5389 enabled xlib &&
5390     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5391
5392 if ! disabled libxcb; then
5393     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5394         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5395     } && disable x11grab && enable libxcb
5396
5397 if enabled libxcb; then
5398     disabled libxcb_shm || {
5399         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5400             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5401         } && check_header sys/shm.h && enable libxcb_shm; }
5402
5403     disabled libxcb_xfixes || {
5404         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5405             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5406         } && enable libxcb_xfixes; }
5407
5408     disabled libxcb_shape || {
5409         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5410             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5411         } && enable libxcb_shape; }
5412
5413     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5414     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5415 fi
5416 fi
5417
5418 if enabled x11grab; then
5419     enabled xlib || die "ERROR: Xlib not found"
5420     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5421     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5422 fi
5423
5424 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5425
5426 enabled dxva2api_h &&
5427     check_cc <<EOF && enable dxva2api_cobj
5428 #define _WIN32_WINNT 0x0600
5429 #define COBJMACROS
5430 #include <windows.h>
5431 #include <d3d9.h>
5432 #include <dxva2api.h>
5433 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5434 EOF
5435
5436 enabled vaapi &&
5437     check_lib va/va.h vaInitialize -lva ||
5438     disable vaapi
5439
5440 enabled vaapi && enabled xlib &&
5441     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5442     enable vaapi_x11
5443
5444 enabled vdpau &&
5445     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5446     disable vdpau
5447
5448 enabled vdpau && enabled xlib &&
5449     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5450     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5451     enable vdpau_x11
5452
5453 # Funny iconv installations are not unusual, so check it after all flags have been set
5454 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5455
5456 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5457
5458 # add some useful compiler flags if supported
5459 check_cflags -Wdeclaration-after-statement
5460 check_cflags -Wall
5461 check_cflags -Wdisabled-optimization
5462 check_cflags -Wpointer-arith
5463 check_cflags -Wredundant-decls
5464 check_cflags -Wwrite-strings
5465 check_cflags -Wtype-limits
5466 check_cflags -Wundef
5467 check_cflags -Wmissing-prototypes
5468 check_cflags -Wno-pointer-to-int-cast
5469 check_cflags -Wstrict-prototypes
5470 check_cflags -Wempty-body
5471 enabled extra_warnings && check_cflags -Winline
5472
5473 check_disable_warning(){
5474     warning_flag=-W${1#-Wno-}
5475     test_cflags $warning_flag && add_cflags $1
5476 }
5477
5478 check_disable_warning -Wno-parentheses
5479 check_disable_warning -Wno-switch
5480 check_disable_warning -Wno-format-zero-length
5481 check_disable_warning -Wno-pointer-sign
5482
5483 # add some linker flags
5484 check_ldflags -Wl,--warn-common
5485 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5486 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5487 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5488 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5489
5490 # add some strip flags
5491 # -wN '..@*' is more selective than -x, but not available everywhere.
5492 check_stripflags -wN \'..@*\' || check_stripflags -x
5493
5494 enabled neon_clobber_test &&
5495     check_ldflags -Wl,--wrap,avcodec_open2              \
5496                   -Wl,--wrap,avcodec_decode_audio4      \
5497                   -Wl,--wrap,avcodec_decode_video2      \
5498                   -Wl,--wrap,avcodec_decode_subtitle2   \
5499                   -Wl,--wrap,avcodec_encode_audio2      \
5500                   -Wl,--wrap,avcodec_encode_video2      \
5501                   -Wl,--wrap,avcodec_encode_subtitle    \
5502                   -Wl,--wrap,swr_convert                \
5503                   -Wl,--wrap,avresample_convert ||
5504     disable neon_clobber_test
5505
5506 enabled xmm_clobber_test &&
5507     check_ldflags -Wl,--wrap,avcodec_open2              \
5508                   -Wl,--wrap,avcodec_decode_audio4      \
5509                   -Wl,--wrap,avcodec_decode_video2      \
5510                   -Wl,--wrap,avcodec_decode_subtitle2   \
5511                   -Wl,--wrap,avcodec_encode_audio2      \
5512                   -Wl,--wrap,avcodec_encode_video       \
5513                   -Wl,--wrap,avcodec_encode_video2      \
5514                   -Wl,--wrap,avcodec_encode_subtitle    \
5515                   -Wl,--wrap,swr_convert                \
5516                   -Wl,--wrap,avresample_convert         \
5517                   -Wl,--wrap,sws_scale ||
5518     disable xmm_clobber_test
5519
5520 echo "X{};" > $TMPV
5521 if test_ldflags -Wl,--version-script,$TMPV; then
5522     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5523     check_cc <<EOF && enable symver_asm_label
5524 void ff_foo(void) __asm__ ("av_foo@VERSION");
5525 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5526 EOF
5527     check_cc <<EOF && enable symver_gnu_asm
5528 __asm__(".symver ff_foo,av_foo@VERSION");
5529 void ff_foo(void) {}
5530 EOF
5531 fi
5532
5533 if [ -z "$optflags" ]; then
5534     if enabled small; then
5535         optflags=$cflags_size
5536     elif enabled optimizations; then
5537         optflags=$cflags_speed
5538     else
5539         optflags=$cflags_noopt
5540     fi
5541 fi
5542
5543 check_optflags(){
5544     check_cflags "$@"
5545     enabled lto && check_ldflags "$@"
5546 }
5547
5548
5549 if enabled lto; then
5550     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5551     check_cflags  -flto
5552     check_ldflags -flto $cpuflags
5553     disable inline_asm_direct_symbol_refs
5554 fi
5555
5556 check_optflags $optflags
5557 check_optflags -fno-math-errno
5558 check_optflags -fno-signed-zeros
5559
5560 enabled ftrapv && check_cflags -ftrapv
5561
5562 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5563 int x;
5564 EOF
5565
5566
5567 if enabled icc; then
5568     # Just warnings, no remarks
5569     check_cflags -w1
5570     # -wd: Disable following warnings
5571     # 144, 167, 556: -Wno-pointer-sign
5572     # 188: enumerated type mixed with another type
5573     # 1292: attribute "foo" ignored
5574     # 1419: external declaration in primary source file
5575     # 10006: ignoring unknown option -fno-signed-zeros
5576     # 10148: ignoring unknown option -Wno-parentheses
5577     # 10156: ignoring option '-W'; no argument required
5578     # 13200: No EMMS instruction before call to function
5579     # 13203: No EMMS instruction before return from function
5580     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5581     # 11030: Warning unknown option --as-needed
5582     # 10156: ignoring option '-export'; no argument required
5583     check_ldflags -wd10156,11030
5584     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5585     enable ebp_available
5586     # The test above does not test linking
5587     enabled lto && disable symver_asm_label
5588     if enabled x86_32; then
5589         icc_version=$($cc -dumpversion)
5590         test ${icc_version%%.*} -ge 11 &&
5591             check_cflags -falign-stack=maintain-16-byte ||
5592             disable aligned_stack
5593     fi
5594 elif enabled ccc; then
5595     # disable some annoying warnings
5596     add_cflags -msg_disable bitnotint
5597     add_cflags -msg_disable mixfuncvoid
5598     add_cflags -msg_disable nonstandcast
5599     add_cflags -msg_disable unsupieee
5600 elif enabled gcc; then
5601     check_optflags -fno-tree-vectorize
5602     check_cflags -Werror=format-security
5603     check_cflags -Werror=implicit-function-declaration
5604     check_cflags -Werror=missing-prototypes
5605     check_cflags -Werror=return-type
5606     check_cflags -Werror=vla
5607     check_cflags -Wformat
5608     check_cflags -fdiagnostics-color=auto
5609     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5610 elif enabled llvm_gcc; then
5611     check_cflags -mllvm -stack-alignment=16
5612 elif enabled clang; then
5613     check_cflags -mllvm -stack-alignment=16
5614     check_cflags -Qunused-arguments
5615     check_cflags -Werror=implicit-function-declaration
5616     check_cflags -Werror=missing-prototypes
5617     check_cflags -Werror=return-type
5618 elif enabled cparser; then
5619     add_cflags -Wno-missing-variable-declarations
5620     add_cflags -Wno-empty-statement
5621 elif enabled armcc; then
5622     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5623     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5624     # 2523: use of inline assembly is deprecated
5625     add_cflags -W${armcc_opt},--diag_suppress=2523
5626     add_cflags -W${armcc_opt},--diag_suppress=1207
5627     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5628     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5629     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5630     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5631 elif enabled tms470; then
5632     add_cflags -pds=824 -pds=837
5633     disable inline_asm
5634 elif enabled pathscale; then
5635     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5636 elif enabled_any msvc icl; then
5637     enabled x86_32 && disable aligned_stack
5638     enabled_all x86_32 debug && add_cflags -Oy-
5639     enabled debug && add_ldflags -debug
5640     enable pragma_deprecated
5641     if enabled icl; then
5642         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5643         # (correctly) on icl 13.x.
5644         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5645             add_cflags -Qansi-alias
5646         # Some inline asm is not compilable in debug
5647         if enabled debug; then
5648             disable ebp_available
5649             disable ebx_available
5650         fi
5651     fi
5652     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5653     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5654 fi
5655
5656 case $as_type in
5657     clang)
5658         add_asflags -Qunused-arguments
5659     ;;
5660 esac
5661
5662 case $ld_type in
5663     clang)
5664         check_ldflags -Qunused-arguments
5665     ;;
5666 esac
5667
5668 case $target_os in
5669     osf1)
5670         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5671     ;;
5672     plan9)
5673         add_cppflags -Dmain=plan9_main
5674     ;;
5675 esac
5676
5677 enable frame_thread_encoder
5678
5679 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5680
5681 check_deps $CONFIG_LIST       \
5682            $CONFIG_EXTRA      \
5683            $HAVE_LIST         \
5684            $ALL_COMPONENTS    \
5685
5686 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"
5687
5688
5689 if test $target_os = "haiku"; then
5690     disable memalign
5691     disable posix_memalign
5692 fi
5693
5694 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5695     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5696     enable dxva2_lib
5697
5698 ! enabled_any memalign posix_memalign aligned_malloc &&
5699     enabled simd_align_16 && enable memalign_hack
5700
5701 # add_dep lib dep
5702 # -> enable ${lib}_deps_${dep}
5703 # -> add $dep to ${lib}_deps only once
5704 add_dep() {
5705     lib=$1
5706     dep=$2
5707     enabled "${lib}_deps_${dep}" && return 0
5708     enable  "${lib}_deps_${dep}"
5709     prepend "${lib}_deps" $dep
5710 }
5711
5712 # merge deps lib components
5713 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5714 merge_deps() {
5715     lib=$1
5716     shift
5717     for comp in $*; do
5718         enabled $comp || continue
5719         eval "dep=\"\$${comp}_deps\""
5720         for d in $dep; do
5721             add_dep $lib $d
5722         done
5723     done
5724 }
5725
5726 merge_deps libavfilter $FILTER_LIST
5727
5728 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5729
5730 for thread in $THREADS_LIST; do
5731     if enabled $thread; then
5732         test -n "$thread_type" &&
5733             die "ERROR: Only one thread type must be selected." ||
5734             thread_type="$thread"
5735     fi
5736 done
5737
5738 enabled zlib && add_cppflags -DZLIB_CONST
5739
5740 # conditional library dependencies, in linking order
5741 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5742 enabled aresample_filter    && prepend avfilter_deps "swresample"
5743 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5744 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5745 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
5746 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5747 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5748 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
5749 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
5750 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5751 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5752 enabled pan_filter          && prepend avfilter_deps "swresample"
5753 enabled pp_filter           && prepend avfilter_deps "postproc"
5754 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5755 enabled resample_filter && prepend avfilter_deps "avresample"
5756 enabled sab_filter          && prepend avfilter_deps "swscale"
5757 enabled scale_filter    && prepend avfilter_deps "swscale"
5758 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5759 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5760 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5761 enabled uspp_filter         && prepend avfilter_deps "avcodec"
5762
5763 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5764
5765 enabled opus_decoder    && prepend avcodec_deps "swresample"
5766
5767 expand_deps(){
5768     lib_deps=${1}_deps
5769     eval "deps=\$$lib_deps"
5770     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5771     unique $lib_deps
5772 }
5773
5774 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5775 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5776
5777 map 'expand_deps $v' $LIBRARY_LIST
5778
5779 echo "install prefix            $prefix"
5780 echo "source path               $source_path"
5781 echo "C compiler                $cc"
5782 echo "C library                 $libc_type"
5783 if test "$host_cc" != "$cc"; then
5784     echo "host C compiler           $host_cc"
5785     echo "host C library            $host_libc_type"
5786 fi
5787 echo "ARCH                      $arch ($cpu)"
5788 if test "$build_suffix" != ""; then
5789     echo "build suffix              $build_suffix"
5790 fi
5791 if test "$progs_suffix" != ""; then
5792     echo "progs suffix              $progs_suffix"
5793 fi
5794 if test "$extra_version" != ""; then
5795     echo "version string suffix     $extra_version"
5796 fi
5797 echo "big-endian                ${bigendian-no}"
5798 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5799 if enabled x86; then
5800     echo "${yasmexe}                      ${yasm-no}"
5801     echo "MMX enabled               ${mmx-no}"
5802     echo "MMXEXT enabled            ${mmxext-no}"
5803     echo "3DNow! enabled            ${amd3dnow-no}"
5804     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5805     echo "SSE enabled               ${sse-no}"
5806     echo "SSSE3 enabled             ${ssse3-no}"
5807     echo "AVX enabled               ${avx-no}"
5808     echo "XOP enabled               ${xop-no}"
5809     echo "FMA3 enabled              ${fma3-no}"
5810     echo "FMA4 enabled              ${fma4-no}"
5811     echo "i686 features enabled     ${i686-no}"
5812     echo "CMOV is fast              ${fast_cmov-no}"
5813     echo "EBX available             ${ebx_available-no}"
5814     echo "EBP available             ${ebp_available-no}"
5815 fi
5816 if enabled aarch64; then
5817     echo "NEON enabled              ${neon-no}"
5818     echo "VFP enabled               ${vfp-no}"
5819 fi
5820 if enabled arm; then
5821     echo "ARMv5TE enabled           ${armv5te-no}"
5822     echo "ARMv6 enabled             ${armv6-no}"
5823     echo "ARMv6T2 enabled           ${armv6t2-no}"
5824     echo "VFP enabled               ${vfp-no}"
5825     echo "NEON enabled              ${neon-no}"
5826     echo "THUMB enabled             ${thumb-no}"
5827 fi
5828 if enabled mips; then
5829     echo "MIPS FPU enabled          ${mipsfpu-no}"
5830     echo "MIPS32R5 enabled          ${mips32r5-no}"
5831     echo "MIPS64R6 enabled          ${mips64r6-no}"
5832     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5833     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5834     echo "MIPS MSA enabled          ${msa-no}"
5835     echo "LOONGSON MMI enabled      ${mmi-no}"
5836 fi
5837 if enabled ppc; then
5838     echo "AltiVec enabled           ${altivec-no}"
5839     echo "VSX enabled               ${vsx-no}"
5840     echo "POWER8 enabled            ${power8-no}"
5841     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5842     echo "dcbzl available           ${dcbzl-no}"
5843 fi
5844 echo "debug symbols             ${debug-no}"
5845 echo "strip symbols             ${stripping-no}"
5846 echo "optimize for size         ${small-no}"
5847 echo "optimizations             ${optimizations-no}"
5848 echo "static                    ${static-no}"
5849 echo "shared                    ${shared-no}"
5850 echo "postprocessing support    ${postproc-no}"
5851 echo "new filter support        ${avfilter-no}"
5852 echo "network support           ${network-no}"
5853 echo "threading support         ${thread_type-no}"
5854 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5855 echo "SDL support               ${sdl-no}"
5856 echo "opencl enabled            ${opencl-no}"
5857 echo "texi2html enabled         ${texi2html-no}"
5858 echo "perl enabled              ${perl-no}"
5859 echo "pod2man enabled           ${pod2man-no}"
5860 echo "makeinfo enabled          ${makeinfo-no}"
5861 echo "makeinfo supports HTML    ${makeinfo_html-no}"
5862 test -n "$random_seed" &&
5863     echo "random seed               ${random_seed}"
5864 echo
5865
5866 echo "External libraries:"
5867 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5868 echo
5869
5870 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5871     echo "Enabled ${type}s:"
5872     eval list=\$$(toupper $type)_LIST
5873     print_enabled '_*' $list | print_3_columns
5874     echo
5875 done
5876
5877 license="LGPL version 2.1 or later"
5878 if enabled nonfree; then
5879     license="nonfree and unredistributable"
5880 elif enabled gplv3; then
5881     license="GPL version 3 or later"
5882 elif enabled lgplv3; then
5883     license="LGPL version 3 or later"
5884 elif enabled gpl; then
5885     license="GPL version 2 or later"
5886 fi
5887
5888 echo "License: $license"
5889
5890 echo "Creating config.mak, config.h, and doc/config.texi..."
5891
5892 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5893
5894 enabled stripping || strip="echo skipping strip"
5895
5896 config_files="$TMPH config.mak doc/config.texi"
5897
5898 cat > config.mak <<EOF
5899 # Automatically generated by configure - do not modify!
5900 ifndef FFMPEG_CONFIG_MAK
5901 FFMPEG_CONFIG_MAK=1
5902 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5903 prefix=$prefix
5904 LIBDIR=\$(DESTDIR)$libdir
5905 SHLIBDIR=\$(DESTDIR)$shlibdir
5906 INCDIR=\$(DESTDIR)$incdir
5907 BINDIR=\$(DESTDIR)$bindir
5908 DATADIR=\$(DESTDIR)$datadir
5909 DOCDIR=\$(DESTDIR)$docdir
5910 MANDIR=\$(DESTDIR)$mandir
5911 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
5912 SRC_PATH=$source_path
5913 ifndef MAIN_MAKEFILE
5914 SRC_PATH:=\$(SRC_PATH:.%=..%)
5915 endif
5916 CC_IDENT=$cc_ident
5917 ARCH=$arch
5918 INTRINSICS=$intrinsics
5919 CC=$cc
5920 CXX=$cxx
5921 AS=$as
5922 LD=$ld
5923 DEPCC=$dep_cc
5924 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5925 DEPAS=$as
5926 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5927 YASM=$yasmexe
5928 DEPYASM=$yasmexe
5929 AR=$ar
5930 ARFLAGS=$arflags
5931 AR_O=$ar_o
5932 RANLIB=$ranlib
5933 STRIP=$strip
5934 CP=cp -p
5935 LN_S=$ln_s
5936 CPPFLAGS=$CPPFLAGS
5937 CFLAGS=$CFLAGS
5938 CXXFLAGS=$CXXFLAGS
5939 ASFLAGS=$ASFLAGS
5940 AS_C=$AS_C
5941 AS_O=$AS_O
5942 CC_C=$CC_C
5943 CC_E=$CC_E
5944 CC_O=$CC_O
5945 CXX_C=$CXX_C
5946 CXX_O=$CXX_O
5947 LD_O=$LD_O
5948 LD_LIB=$LD_LIB
5949 LD_PATH=$LD_PATH
5950 DLLTOOL=$dlltool
5951 WINDRES=$windres
5952 DEPWINDRES=$dep_cc
5953 DOXYGEN=$doxygen
5954 LDFLAGS=$LDFLAGS
5955 LDEXEFLAGS=$LDEXEFLAGS
5956 LDLIBFLAGS=$LDLIBFLAGS
5957 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5958 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5959 YASMFLAGS=$YASMFLAGS
5960 BUILDSUF=$build_suffix
5961 PROGSSUF=$progs_suffix
5962 FULLNAME=$FULLNAME
5963 LIBPREF=$LIBPREF
5964 LIBSUF=$LIBSUF
5965 LIBNAME=$LIBNAME
5966 SLIBPREF=$SLIBPREF
5967 SLIBSUF=$SLIBSUF
5968 EXESUF=$EXESUF
5969 EXTRA_VERSION=$extra_version
5970 CCDEP=$CCDEP
5971 CXXDEP=$CXXDEP
5972 CCDEP_FLAGS=$CCDEP_FLAGS
5973 ASDEP=$ASDEP
5974 ASDEP_FLAGS=$ASDEP_FLAGS
5975 CC_DEPFLAGS=$CC_DEPFLAGS
5976 AS_DEPFLAGS=$AS_DEPFLAGS
5977 HOSTCC=$host_cc
5978 HOSTLD=$host_ld
5979 HOSTCFLAGS=$host_cflags
5980 HOSTCPPFLAGS=$host_cppflags
5981 HOSTEXESUF=$HOSTEXESUF
5982 HOSTLDFLAGS=$host_ldflags
5983 HOSTLIBS=$host_libs
5984 DEPHOSTCC=$host_cc
5985 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5986 HOSTCCDEP=$HOSTCCDEP
5987 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5988 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5989 HOSTCC_C=$HOSTCC_C
5990 HOSTCC_O=$HOSTCC_O
5991 HOSTLD_O=$HOSTLD_O
5992 TARGET_EXEC=$target_exec $target_exec_args
5993 TARGET_PATH=$target_path
5994 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5995 CFLAGS-ffplay=$sdl_cflags
5996 ZLIB=$($ldflags_filter -lz)
5997 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5998 EXTRALIBS=$extralibs
5999 COMPAT_OBJS=$compat_objs
6000 EXEOBJS=$exeobjs
6001 INSTALL=$install
6002 LIBTARGET=${LIBTARGET}
6003 SLIBNAME=${SLIBNAME}
6004 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6005 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6006 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6007 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6008 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6009 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6010 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6011 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6012 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6013 NOREDZONE_FLAGS=$noredzone_flags
6014 EOF
6015
6016 get_version(){
6017     lcname=lib${1}
6018     name=$(toupper $lcname)
6019     file=$source_path/$lcname/version.h
6020     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6021     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6022     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6023     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6024     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6025     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6026 }
6027
6028 map 'get_version $v' $LIBRARY_LIST
6029
6030 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6031
6032 print_program_libs(){
6033     eval "program_libs=\$${1}_libs"
6034     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6035 }
6036
6037 map 'print_program_libs $v' $PROGRAM_LIST
6038
6039 cat > $TMPH <<EOF
6040 /* Automatically generated by configure - do not modify! */
6041 #ifndef FFMPEG_CONFIG_H
6042 #define FFMPEG_CONFIG_H
6043 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6044 #define FFMPEG_LICENSE "$(c_escape $license)"
6045 #define CONFIG_THIS_YEAR 2015
6046 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6047 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6048 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6049 #define av_restrict $_restrict
6050 #define EXTERN_PREFIX "${extern_prefix}"
6051 #define EXTERN_ASM ${extern_prefix}
6052 #define BUILDSUF "$build_suffix"
6053 #define SLIBSUF "$SLIBSUF"
6054 #define HAVE_MMX2 HAVE_MMXEXT
6055 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6056 EOF
6057
6058 test -n "$assert_level" &&
6059     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6060
6061 test -n "$malloc_prefix" &&
6062     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6063
6064 if enabled yasm; then
6065     append config_files $TMPASM
6066     printf '' >$TMPASM
6067 fi
6068
6069 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6070
6071
6072 mkdir -p doc
6073 mkdir -p tests
6074 mkdir -p tests/api
6075 echo "@c auto-generated by configure" > doc/config.texi
6076
6077 print_config ARCH_   "$config_files" $ARCH_LIST
6078 print_config HAVE_   "$config_files" $HAVE_LIST
6079 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6080                                      $CONFIG_EXTRA      \
6081                                      $ALL_COMPONENTS    \
6082
6083 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6084 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6085
6086 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6087 cp_if_changed $TMPH config.h
6088 touch .config
6089
6090 enabled yasm && cp_if_changed $TMPASM config.asm
6091
6092 cat > $TMPH <<EOF
6093 /* Generated by ffconf */
6094 #ifndef AVUTIL_AVCONFIG_H
6095 #define AVUTIL_AVCONFIG_H
6096 EOF
6097
6098 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6099
6100 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6101
6102 cp_if_changed $TMPH libavutil/avconfig.h
6103
6104 if test -n "$WARNINGS"; then
6105     printf "\n$WARNINGS"
6106     enabled fatal_warnings && exit 1
6107 fi
6108
6109 # build pkg-config files
6110
6111 lib_version(){
6112     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6113 }
6114
6115 pkgconfig_generate(){
6116     name=$1
6117     shortname=${name#lib}${build_suffix}
6118     comment=$2
6119     version=$3
6120     libs=$4
6121     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6122     requires=${requires%, }
6123     enabled ${name#lib} || return 0
6124     mkdir -p $name
6125     cat <<EOF > $name/$name${build_suffix}.pc
6126 prefix=$prefix
6127 exec_prefix=\${prefix}
6128 libdir=$libdir
6129 includedir=$incdir
6130
6131 Name: $name
6132 Description: $comment
6133 Version: $version
6134 Requires: $(enabled shared || echo $requires)
6135 Requires.private: $(enabled shared && echo $requires)
6136 Conflicts:
6137 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6138 Libs.private: $(enabled shared && echo $libs)
6139 Cflags: -I\${includedir}
6140 EOF
6141
6142 mkdir -p doc/examples/pc-uninstalled
6143 includedir=${source_path}
6144 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6145     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6146 prefix=
6147 exec_prefix=
6148 libdir=\${pcfiledir}/../../../$name
6149 includedir=${includedir}
6150
6151 Name: $name
6152 Description: $comment
6153 Version: $version
6154 Requires: $requires
6155 Conflicts:
6156 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6157 Cflags: -I\${includedir}
6158 EOF
6159 }
6160
6161 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6162 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6163 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6164 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6165 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6166 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6167 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6168 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6169 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"