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 async_protocol_deps="pthreads"
2658 bluray_protocol_deps="libbluray"
2659 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2660 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2661 ffrtmpcrypt_protocol_select="tcp_protocol"
2662 ffrtmphttp_protocol_deps="!librtmp_protocol"
2663 ffrtmphttp_protocol_select="http_protocol"
2664 ftp_protocol_select="tcp_protocol"
2665 gopher_protocol_select="network"
2666 http_protocol_select="tcp_protocol"
2667 httpproxy_protocol_select="tcp_protocol"
2668 https_protocol_select="tls_protocol"
2669 icecast_protocol_select="http_protocol"
2670 librtmp_protocol_deps="librtmp"
2671 librtmpe_protocol_deps="librtmp"
2672 librtmps_protocol_deps="librtmp"
2673 librtmpt_protocol_deps="librtmp"
2674 librtmpte_protocol_deps="librtmp"
2675 libsmbclient_protocol_deps="libsmbclient gplv3"
2676 libssh_protocol_deps="libssh"
2677 mmsh_protocol_select="http_protocol"
2678 mmst_protocol_select="network"
2679 rtmp_protocol_deps="!librtmp_protocol"
2680 rtmp_protocol_select="tcp_protocol"
2681 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2682 rtmps_protocol_deps="!librtmp_protocol"
2683 rtmps_protocol_select="tls_protocol"
2684 rtmpt_protocol_select="ffrtmphttp_protocol"
2685 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2686 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2687 rtp_protocol_select="udp_protocol"
2688 sctp_protocol_deps="struct_sctp_event_subscribe"
2689 sctp_protocol_select="network"
2690 srtp_protocol_select="rtp_protocol"
2691 tcp_protocol_select="network"
2692 tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"
2693 tls_gnutls_protocol_select="tcp_protocol"
2694 tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"
2695 tls_openssl_protocol_select="tcp_protocol"
2696 tls_securetransport_protocol_deps="securetransport"
2697 tls_securetransport_protocol_select="tcp_protocol"
2698 tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2699 udp_protocol_select="network"
2700 udplite_protocol_select="network"
2701 unix_protocol_deps="sys_un_h"
2702 unix_protocol_select="network"
2703
2704 # filters
2705 amovie_filter_deps="avcodec avformat"
2706 aresample_filter_deps="swresample"
2707 ass_filter_deps="libass"
2708 asyncts_filter_deps="avresample"
2709 atempo_filter_deps="avcodec"
2710 atempo_filter_select="rdft"
2711 azmq_filter_deps="libzmq"
2712 blackframe_filter_deps="gpl"
2713 boxblur_filter_deps="gpl"
2714 bs2b_filter_deps="libbs2b"
2715 colormatrix_filter_deps="gpl"
2716 cover_rect_filter_deps="avcodec avformat gpl"
2717 cropdetect_filter_deps="gpl"
2718 delogo_filter_deps="gpl"
2719 deshake_filter_select="pixelutils"
2720 drawtext_filter_deps="libfreetype"
2721 ebur128_filter_deps="gpl"
2722 eq_filter_deps="gpl"
2723 fftfilt_filter_deps="avcodec"
2724 fftfilt_filter_select="rdft"
2725 flite_filter_deps="libflite"
2726 find_rect_filter_deps="avcodec avformat gpl"
2727 frei0r_filter_deps="frei0r dlopen"
2728 frei0r_src_filter_deps="frei0r dlopen"
2729 fspp_filter_deps="gpl"
2730 geq_filter_deps="gpl"
2731 histeq_filter_deps="gpl"
2732 hqdn3d_filter_deps="gpl"
2733 interlace_filter_deps="gpl"
2734 kerndeint_filter_deps="gpl"
2735 ladspa_filter_deps="ladspa dlopen"
2736 mcdeint_filter_deps="avcodec gpl"
2737 movie_filter_deps="avcodec avformat"
2738 mpdecimate_filter_deps="gpl"
2739 mpdecimate_filter_select="pixelutils"
2740 mptestsrc_filter_deps="gpl"
2741 negate_filter_deps="lut_filter"
2742 perspective_filter_deps="gpl"
2743 pp7_filter_deps="gpl"
2744 ocv_filter_deps="libopencv"
2745 owdenoise_filter_deps="gpl"
2746 pan_filter_deps="swresample"
2747 phase_filter_deps="gpl"
2748 pp_filter_deps="gpl postproc"
2749 pullup_filter_deps="gpl"
2750 removelogo_filter_deps="avcodec avformat swscale"
2751 repeatfields_filter_deps="gpl"
2752 resample_filter_deps="avresample"
2753 sab_filter_deps="gpl swscale"
2754 scale_filter_deps="swscale"
2755 select_filter_select="pixelutils"
2756 smartblur_filter_deps="gpl swscale"
2757 showcqt_filter_deps="avcodec"
2758 showcqt_filter_select="fft"
2759 showspectrum_filter_deps="avcodec"
2760 showspectrum_filter_select="rdft"
2761 spp_filter_deps="gpl avcodec"
2762 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2763 stereo3d_filter_deps="gpl"
2764 subtitles_filter_deps="avformat avcodec libass"
2765 super2xsai_filter_deps="gpl"
2766 tinterlace_filter_deps="gpl"
2767 vidstabdetect_filter_deps="libvidstab"
2768 vidstabtransform_filter_deps="libvidstab"
2769 pixfmts_super2xsai_test_deps="super2xsai_filter"
2770 tinterlace_merge_test_deps="tinterlace_filter"
2771 tinterlace_pad_test_deps="tinterlace_filter"
2772 uspp_filter_deps="gpl avcodec"
2773 zmq_filter_deps="libzmq"
2774 zoompan_filter_deps="swscale"
2775
2776 # examples
2777 avio_reading="avformat avcodec avutil"
2778 avio_list_dir="avformat avutil"
2779 avcodec_example_deps="avcodec avutil"
2780 decoding_encoding_example_deps="avcodec avformat avutil"
2781 demuxing_decoding_example_deps="avcodec avformat avutil"
2782 extract_mvs_example_deps="avcodec avformat avutil"
2783 filter_audio_example_deps="avfilter avutil"
2784 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2785 filtering_video_example_deps="avfilter avcodec avformat avutil"
2786 metadata_example_deps="avformat avutil"
2787 muxing_example_deps="avcodec avformat avutil swscale"
2788 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2789 remuxing_example_deps="avcodec avformat avutil"
2790 resampling_audio_example_deps="avutil swresample"
2791 scaling_video_example_deps="avutil swscale"
2792 transcode_aac_example_deps="avcodec avformat swresample"
2793 transcoding_example_deps="avfilter avcodec avformat avutil"
2794
2795 # libraries, in linking order
2796 avcodec_deps="avutil"
2797 avdevice_deps="avformat avcodec avutil"
2798 avfilter_deps="avutil"
2799 avformat_deps="avcodec avutil"
2800 avresample_deps="avutil"
2801 postproc_deps="avutil gpl"
2802 swresample_deps="avutil"
2803 swscale_deps="avutil"
2804
2805 # programs
2806 ffmpeg_deps="avcodec avfilter avformat swresample"
2807 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2808                null_filter
2809                setpts_filter trim_filter"
2810 ffplay_deps="avcodec avformat swscale swresample sdl"
2811 ffplay_libs='$sdl_libs'
2812 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2813 ffprobe_deps="avcodec avformat"
2814 ffserver_deps="avformat fork sarestart"
2815 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2816
2817 # documentation
2818 podpages_deps="perl"
2819 manpages_deps="perl pod2man"
2820 htmlpages_deps="perl"
2821 htmlpages_deps_any="makeinfo_html texi2html"
2822 txtpages_deps="perl makeinfo"
2823 doc_deps_any="manpages htmlpages podpages txtpages"
2824
2825 # default parameters
2826
2827 logfile="config.log"
2828
2829 # installation paths
2830 prefix_default="/usr/local"
2831 bindir_default='${prefix}/bin'
2832 datadir_default='${prefix}/share/ffmpeg'
2833 docdir_default='${prefix}/share/doc/ffmpeg'
2834 incdir_default='${prefix}/include'
2835 libdir_default='${prefix}/lib'
2836 mandir_default='${prefix}/share/man'
2837
2838 # toolchain
2839 ar_default="ar"
2840 cc_default="gcc"
2841 cxx_default="g++"
2842 host_cc_default="gcc"
2843 cp_f="cp -f"
2844 doxygen_default="doxygen"
2845 install="install"
2846 ln_s="ln -s -f"
2847 nm_default="nm -g"
2848 objformat="elf"
2849 pkg_config_default=pkg-config
2850 ranlib_default="ranlib"
2851 strip_default="strip"
2852 yasmexe_default="yasm"
2853 windres_default="windres"
2854
2855 # OS
2856 target_os_default=$(tolower $(uname -s))
2857 host_os=$target_os_default
2858
2859 # machine
2860 if test "$target_os_default" = aix; then
2861     arch_default=$(uname -p)
2862     strip_default="strip -X32_64"
2863 else
2864     arch_default=$(uname -m)
2865 fi
2866 cpu="generic"
2867 intrinsics="none"
2868
2869 # configurable options
2870 enable $PROGRAM_LIST
2871 enable $DOCUMENT_LIST
2872 enable $EXAMPLE_LIST
2873 enable $(filter_out avresample $LIBRARY_LIST)
2874 enable stripping
2875
2876 enable asm
2877 enable debug
2878 enable doc
2879 enable faan faandct faanidct
2880 enable optimizations
2881 enable runtime_cpudetect
2882 enable safe_bitstream_reader
2883 enable static
2884 enable swscale_alpha
2885 enable valgrind_backtrace
2886
2887 sws_max_filter_size_default=256
2888 set_default sws_max_filter_size
2889
2890 # Enable hwaccels by default.
2891 enable d3d11va dxva2 vaapi vda vdpau xvmc
2892 enable xlib
2893
2894 # build settings
2895 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2896 LIBPREF="lib"
2897 LIBSUF=".a"
2898 FULLNAME='$(NAME)$(BUILDSUF)'
2899 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2900 SLIBPREF="lib"
2901 SLIBSUF=".so"
2902 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2903 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2904 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2905 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2906 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2907 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2908
2909 asflags_filter=echo
2910 cflags_filter=echo
2911 ldflags_filter=echo
2912
2913 AS_C='-c'
2914 AS_O='-o $@'
2915 CC_C='-c'
2916 CC_E='-E -o $@'
2917 CC_O='-o $@'
2918 CXX_C='-c'
2919 CXX_O='-o $@'
2920 LD_O='-o $@'
2921 LD_LIB='-l%'
2922 LD_PATH='-L'
2923 HOSTCC_C='-c'
2924 HOSTCC_E='-E -o $@'
2925 HOSTCC_O='-o $@'
2926 HOSTLD_O='-o $@'
2927
2928 host_libs='-lm'
2929 host_cflags_filter=echo
2930 host_ldflags_filter=echo
2931
2932 target_path='$(CURDIR)'
2933
2934 # since the object filename is not given with the -MM flag, the compiler
2935 # is only able to print the basename, and we must add the path ourselves
2936 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2937 DEPFLAGS='-MM'
2938
2939 # find source path
2940 if test -f configure; then
2941     source_path=.
2942 else
2943     source_path=$(cd $(dirname "$0"); pwd)
2944     echo "$source_path" | grep -q '[[:blank:]]' &&
2945         die "Out of tree builds are impossible with whitespace in source path."
2946     test -e "$source_path/config.h" &&
2947         die "Out of tree builds are impossible with config.h in source dir."
2948 fi
2949
2950 for v in "$@"; do
2951     r=${v#*=}
2952     l=${v%"$r"}
2953     r=$(sh_quote "$r")
2954     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2955 done
2956
2957 find_things(){
2958     thing=$1
2959     pattern=$2
2960     file=$source_path/$3
2961     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2962 }
2963
2964 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2965 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2966 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2967 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2968 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2969 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2970 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2971 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2972 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2973 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2974 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2975
2976 ALL_COMPONENTS="
2977     $BSF_LIST
2978     $DECODER_LIST
2979     $DEMUXER_LIST
2980     $ENCODER_LIST
2981     $FILTER_LIST
2982     $HWACCEL_LIST
2983     $INDEV_LIST
2984     $MUXER_LIST
2985     $OUTDEV_LIST
2986     $PARSER_LIST
2987     $PROTOCOL_LIST
2988 "
2989
2990 for n in $COMPONENT_LIST; do
2991     v=$(toupper ${n%s})_LIST
2992     eval enable \$$v
2993     eval ${n}_if_any="\$$v"
2994 done
2995
2996 enable $ARCH_EXT_LIST
2997
2998 die_unknown(){
2999     echo "Unknown option \"$1\"."
3000     echo "See $0 --help for available options."
3001     exit 1
3002 }
3003
3004 print_3_columns() {
3005     cat | tr ' ' '\n' | sort | pr -r -3 -t
3006 }
3007
3008 show_list() {
3009     suffix=_$1
3010     shift
3011     echo $* | sed s/$suffix//g | print_3_columns
3012     exit 0
3013 }
3014
3015 rand_list(){
3016     IFS=', '
3017     set -- $*
3018     unset IFS
3019     for thing; do
3020         comp=${thing%:*}
3021         prob=${thing#$comp}
3022         prob=${prob#:}
3023         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3024         echo "prob ${prob:-0.5}"
3025         printf '%s\n' $comp
3026     done
3027 }
3028
3029 do_random(){
3030     action=$1
3031     shift
3032     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3033     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3034 }
3035
3036 for opt do
3037     optval="${opt#*=}"
3038     case "$opt" in
3039         --extra-ldflags=*)
3040             add_ldflags $optval
3041         ;;
3042         --extra-ldexeflags=*)
3043             add_ldexeflags $optval
3044         ;;
3045         --extra-ldlibflags=*)
3046             add_ldlibflags $optval
3047         ;;
3048         --extra-libs=*)
3049             add_extralibs $optval
3050         ;;
3051         --disable-devices)
3052             disable $INDEV_LIST $OUTDEV_LIST
3053         ;;
3054         --enable-debug=*)
3055             debuglevel="$optval"
3056         ;;
3057         --disable-programs)
3058             disable $PROGRAM_LIST
3059         ;;
3060         --disable-everything)
3061             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3062         ;;
3063         --disable-all)
3064             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3065             disable $LIBRARY_LIST $PROGRAM_LIST doc
3066         ;;
3067         --enable-random|--disable-random)
3068             action=${opt%%-random}
3069             do_random ${action#--} $COMPONENT_LIST
3070         ;;
3071         --enable-random=*|--disable-random=*)
3072             action=${opt%%-random=*}
3073             do_random ${action#--} $optval
3074         ;;
3075         --enable-*=*|--disable-*=*)
3076             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3077             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3078             eval list=\$$(toupper $thing)_LIST
3079             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3080             list=$(filter "$name" $list)
3081             [ "$list" = "" ] && warn "Option $opt did not match anything"
3082             $action $list
3083         ;;
3084         --enable-?*|--disable-?*)
3085             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3086             if is_in $option $COMPONENT_LIST; then
3087                 test $action = disable && action=unset
3088                 eval $action \$$(toupper ${option%s})_LIST
3089             elif is_in $option $CMDLINE_SELECT; then
3090                 $action $option
3091             else
3092                 die_unknown $opt
3093             fi
3094         ;;
3095         --list-*)
3096             NAME="${opt#--list-}"
3097             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3098             NAME=${NAME%s}
3099             eval show_list $NAME \$$(toupper $NAME)_LIST
3100         ;;
3101         --help|-h) show_help
3102         ;;
3103         --fatal-warnings) enable fatal_warnings
3104         ;;
3105         *)
3106             optname="${opt%%=*}"
3107             optname="${optname#--}"
3108             optname=$(echo "$optname" | sed 's/-/_/g')
3109             if is_in $optname $CMDLINE_SET; then
3110                 eval $optname='$optval'
3111             elif is_in $optname $CMDLINE_APPEND; then
3112                 append $optname "$optval"
3113             else
3114                 die_unknown $opt
3115             fi
3116         ;;
3117     esac
3118 done
3119
3120 for e in $env; do
3121     eval "export $e"
3122 done
3123
3124 disabled logging && logfile=/dev/null
3125
3126 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3127 set >> $logfile
3128
3129 test -n "$valgrind" && toolchain="valgrind-memcheck"
3130
3131 case "$toolchain" in
3132     clang-asan)
3133         cc_default="clang"
3134         add_cflags  -fsanitize=address
3135         add_ldflags -fsanitize=address
3136     ;;
3137     clang-tsan)
3138         cc_default="clang"
3139         add_cflags  -fsanitize=thread -pie
3140         add_ldflags -fsanitize=thread -pie
3141     ;;
3142     clang-usan)
3143         cc_default="clang"
3144         add_cflags  -fsanitize=undefined
3145         add_ldflags -fsanitize=undefined
3146     ;;
3147     gcc-asan)
3148         cc_default="gcc"
3149         add_cflags  -fsanitize=address
3150         add_ldflags -fsanitize=address
3151     ;;
3152     gcc-tsan)
3153         cc_default="gcc"
3154         add_cflags  -fsanitize=thread -pie -fPIC
3155         add_ldflags -fsanitize=thread -pie -fPIC
3156     ;;
3157     gcc-usan)
3158         cc_default="gcc"
3159         add_cflags  -fsanitize=undefined
3160         add_ldflags -fsanitize=undefined
3161     ;;
3162     valgrind-massif)
3163         target_exec_default=${valgrind:-"valgrind"}
3164         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"
3165     ;;
3166     valgrind-memcheck)
3167         target_exec_default=${valgrind:-"valgrind"}
3168         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3169     ;;
3170     msvc)
3171         # Check whether the current MSVC version needs the C99 converter.
3172         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3173         # support enough of C99 to build ffmpeg. Default to the new
3174         # behaviour if the regexp was unable to match anything, since this
3175         # successfully parses the version number of existing supported
3176         # versions that require the converter (MSVC 2010 and 2012).
3177         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3178         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3179             cc_default="cl"
3180         else
3181             cc_default="c99wrap cl"
3182         fi
3183         ld_default="link"
3184         nm_default="dumpbin -symbols"
3185         ar_default="lib"
3186         target_os_default="win32"
3187         # Use a relative path for TMPDIR. This makes sure all the
3188         # ffconf temp files are written with a relative path, avoiding
3189         # issues with msys/win32 path conversion for MSVC parameters
3190         # such as -Fo<file> or -out:<file>.
3191         TMPDIR=.
3192     ;;
3193     icl)
3194         cc_default="icl"
3195         ld_default="xilink"
3196         nm_default="dumpbin -symbols"
3197         ar_default="xilib"
3198         target_os_default="win32"
3199         TMPDIR=.
3200     ;;
3201     gcov)
3202         add_cflags  -fprofile-arcs -ftest-coverage
3203         add_ldflags -fprofile-arcs -ftest-coverage
3204     ;;
3205     hardened)
3206         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3207         add_cflags   -fno-strict-overflow -fstack-protector-all
3208         add_ldflags  -Wl,-z,relro -Wl,-z,now
3209     ;;
3210     ?*)
3211         die "Unknown toolchain $toolchain"
3212     ;;
3213 esac
3214
3215 test -n "$cross_prefix" && enable cross_compile
3216
3217 if enabled cross_compile; then
3218     test -n "$arch" && test -n "$target_os" ||
3219         die "Must specify target arch and OS when cross-compiling"
3220 fi
3221
3222 ar_default="${cross_prefix}${ar_default}"
3223 cc_default="${cross_prefix}${cc_default}"
3224 cxx_default="${cross_prefix}${cxx_default}"
3225 nm_default="${cross_prefix}${nm_default}"
3226 pkg_config_default="${cross_prefix}${pkg_config_default}"
3227 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3228     ranlib_default="${cross_prefix}${ranlib_default} -D"
3229 else
3230     ranlib_default="${cross_prefix}${ranlib_default}"
3231 fi
3232 strip_default="${cross_prefix}${strip_default}"
3233 windres_default="${cross_prefix}${windres_default}"
3234
3235 sysinclude_default="${sysroot}/usr/include"
3236
3237 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3238     target_exec target_os yasmexe
3239 enabled cross_compile || host_cc_default=$cc
3240 set_default host_cc
3241
3242 pkg_config_fail_message=""
3243 if ! $pkg_config --version >/dev/null 2>&1; then
3244     warn "$pkg_config not found, library detection may fail."
3245     pkg_config=false
3246 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3247     pkg_config_fail_message="
3248 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3249 fi
3250
3251 if test $doxygen != $doxygen_default && \
3252   ! $doxygen --version >/dev/null 2>&1; then
3253     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3254 fi
3255
3256 exesuf() {
3257     case $1 in
3258         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3259     esac
3260 }
3261
3262 EXESUF=$(exesuf $target_os)
3263 HOSTEXESUF=$(exesuf $host_os)
3264
3265 # set temporary file name
3266 : ${TMPDIR:=$TEMPDIR}
3267 : ${TMPDIR:=$TMP}
3268 : ${TMPDIR:=/tmp}
3269
3270 if [ -n "$tempprefix" ] ; then
3271     mktemp(){
3272         echo $tempprefix.${HOSTNAME}.${UID}
3273     }
3274 elif ! check_cmd mktemp -u XXXXXX; then
3275     # simple replacement for missing mktemp
3276     # NOT SAFE FOR GENERAL USE
3277     mktemp(){
3278         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3279     }
3280 fi
3281
3282 tmpfile(){
3283     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3284         (set -C; exec > $tmp) 2>/dev/null ||
3285         die "Unable to create temporary file in $TMPDIR."
3286     append TMPFILES $tmp
3287     eval $1=$tmp
3288 }
3289
3290 trap 'rm -f -- $TMPFILES' EXIT
3291
3292 tmpfile TMPASM .asm
3293 tmpfile TMPC   .c
3294 tmpfile TMPCPP .cpp
3295 tmpfile TMPE   $EXESUF
3296 tmpfile TMPH   .h
3297 tmpfile TMPM   .m
3298 tmpfile TMPO   .o
3299 tmpfile TMPS   .S
3300 tmpfile TMPSH  .sh
3301 tmpfile TMPV   .ver
3302
3303 unset -f mktemp
3304
3305 chmod +x $TMPE
3306
3307 # make sure we can execute files in $TMPDIR
3308 cat > $TMPSH 2>> $logfile <<EOF
3309 #! /bin/sh
3310 EOF
3311 chmod +x $TMPSH >> $logfile 2>&1
3312 if ! $TMPSH >> $logfile 2>&1; then
3313     cat <<EOF
3314 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3315 variable to another directory and make sure that it is not mounted noexec.
3316 EOF
3317     die "Sanity test failed."
3318 fi
3319
3320 armasm_flags(){
3321     for flag; do
3322         case $flag in
3323             # Filter out MSVC cl.exe options from cflags that shouldn't
3324             # be passed to gas-preprocessor
3325             -M[TD]*)                                            ;;
3326             *)                  echo $flag                      ;;
3327         esac
3328    done
3329 }
3330
3331 ccc_flags(){
3332     for flag; do
3333         case $flag in
3334             -std=c99)           echo -c99                       ;;
3335             -mcpu=*)            echo -arch ${flag#*=}           ;;
3336             -mieee)             echo -ieee                      ;;
3337             -O*|-fast)          echo $flag                      ;;
3338             -fno-math-errno)    echo -assume nomath_errno       ;;
3339             -g)                 echo -g3                        ;;
3340             -Wall)              echo -msg_enable level2         ;;
3341             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3342             -Wl,*)              echo $flag                      ;;
3343             -f*|-W*)                                            ;;
3344             *)                  echo $flag                      ;;
3345         esac
3346    done
3347 }
3348
3349 cparser_flags(){
3350     for flag; do
3351         case $flag in
3352             -Wno-switch)             echo -Wno-switch-enum ;;
3353             -Wno-format-zero-length) ;;
3354             -Wdisabled-optimization) ;;
3355             -Wno-pointer-sign)       echo -Wno-other ;;
3356             *)                       echo $flag ;;
3357         esac
3358     done
3359 }
3360
3361 msvc_common_flags(){
3362     for flag; do
3363         case $flag in
3364             # In addition to specifying certain flags under the compiler
3365             # specific filters, they must be specified here as well or else the
3366             # generic catch all at the bottom will print the original flag.
3367             -Wall)                ;;
3368             -std=c99)             ;;
3369             # Common flags
3370             -fomit-frame-pointer) ;;
3371             -g)                   echo -Z7 ;;
3372             -fno-math-errno)      ;;
3373             -fno-common)          ;;
3374             -fno-signed-zeros)    ;;
3375             -fPIC)                ;;
3376             -mthumb)              ;;
3377             -march=*)             ;;
3378             -lz)                  echo zlib.lib ;;
3379             -lavifil32)           echo vfw32.lib ;;
3380             -lavicap32)           echo vfw32.lib user32.lib ;;
3381             -l*)                  echo ${flag#-l}.lib ;;
3382             -L*)                  echo -libpath:${flag#-L} ;;
3383             *)                    echo $flag ;;
3384         esac
3385     done
3386 }
3387
3388 msvc_flags(){
3389     msvc_common_flags "$@"
3390     for flag; do
3391         case $flag in
3392             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3393                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3394                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3395                                        -wd4307 \
3396                                        -wd4273 -wd4554 -wd4701 ;;
3397         esac
3398     done
3399 }
3400
3401 icl_flags(){
3402     msvc_common_flags "$@"
3403     for flag; do
3404         case $flag in
3405             # Despite what Intel's documentation says -Wall, which is supported
3406             # on Windows, does enable remarks so disable them here.
3407             -Wall)                echo $flag -Qdiag-disable:remark ;;
3408             -std=c99)             echo -Qstd=c99 ;;
3409             -flto)                echo -ipo ;;
3410         esac
3411     done
3412 }
3413
3414 icc_flags(){
3415     for flag; do
3416         case $flag in
3417             -flto)                echo -ipo ;;
3418             *)                    echo $flag ;;
3419         esac
3420     done
3421 }
3422
3423 pgi_flags(){
3424     for flag; do
3425         case $flag in
3426             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3427             -fomit-frame-pointer) echo -Mnoframe ;;
3428             -g)                   echo -gopt ;;
3429             *)                    echo $flag ;;
3430         esac
3431     done
3432 }
3433
3434 suncc_flags(){
3435     for flag; do
3436         case $flag in
3437             -march=*|-mcpu=*)
3438                 case "${flag#*=}" in
3439                     native)                   echo -xtarget=native       ;;
3440                     v9|niagara)               echo -xarch=sparc          ;;
3441                     ultrasparc)               echo -xarch=sparcvis       ;;
3442                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3443                     i586|pentium)             echo -xchip=pentium        ;;
3444                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3445                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3446                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3447                     pentium4*)          echo -xtarget=pentium4           ;;
3448                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3449                     *-sse3)             echo -xarch=sse3                 ;;
3450                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3451                     bonnell)                   echo -xarch=ssse3         ;;
3452                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3453                     westmere)                  echo -xtarget=westmere    ;;
3454                     silvermont)                echo -xarch=sse4_2        ;;
3455                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3456                     core-avx*|ivybridge|haswell|broadwell)
3457                                                echo -xarch=avx           ;;
3458                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3459                     btver1)                    echo -xarch=amdsse4a      ;;
3460                     btver2|bdver*)             echo -xarch=avx           ;;
3461                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3462                     k8|opteron|athlon64|athlon-fx)
3463                                                echo -xarch=sse2a         ;;
3464                     athlon*)                   echo -xarch=pentium_proa  ;;
3465                 esac
3466                 ;;
3467             -std=c99)             echo -xc99              ;;
3468             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3469             -fPIC)                echo -KPIC -xcode=pic32 ;;
3470             -W*,*)                echo $flag              ;;
3471             -f*-*|-W*|-mimpure-text)                      ;;
3472             -shared)              echo -G                 ;;
3473             *)                    echo $flag              ;;
3474         esac
3475     done
3476 }
3477
3478 tms470_flags(){
3479     for flag; do
3480         case $flag in
3481             -march=*|-mcpu=*)
3482                 case "${flag#*=}" in
3483                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3484                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3485                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3486                     armv6*|arm11*)          echo -mv=6   ;;
3487                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3488                                             echo -mv=5e  ;;
3489                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3490                 esac
3491                 ;;
3492             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3493             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3494             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3495             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3496             -msoft-float)   echo --float_support=vfplib       ;;
3497             -O[0-3]|-mf=*)  echo $flag                        ;;
3498             -g)             echo -g -mn                       ;;
3499             -pds=*)         echo $flag                        ;;
3500             -D*|-I*)        echo $flag                        ;;
3501             --gcc|--abi=*)  echo $flag                        ;;
3502             -me)            echo $flag                        ;;
3503         esac
3504     done
3505 }
3506
3507 probe_cc(){
3508     pfx=$1
3509     _cc=$2
3510
3511     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3512     unset _ld_o _ldflags _ld_lib _ld_path
3513     unset _depflags _DEPCMD _DEPFLAGS
3514     _flags_filter=echo
3515
3516     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3517         true # no-op to avoid reading stdin in following checks
3518     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3519         _type=llvm_gcc
3520         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3521         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3522         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3523         _cflags_speed='-O3'
3524         _cflags_size='-Os'
3525     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3526         _type=gcc
3527         gcc_version=$($_cc --version | head -n1)
3528         gcc_basever=$($_cc -dumpversion)
3529         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3530         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3531         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3532         if ! $_cc -dumpversion | grep -q '^2\.'; then
3533             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3534         fi
3535         _cflags_speed='-O3'
3536         _cflags_size='-Os'
3537     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3538         _type=icc
3539         _ident=$($_cc --version | head -n1)
3540         _depflags='-MMD'
3541         _cflags_speed='-O3'
3542         _cflags_size='-Os'
3543         _cflags_noopt='-O1'
3544         _flags_filter=icc_flags
3545     elif $_cc -v 2>&1 | grep -q xlc; then
3546         _type=xlc
3547         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3548         _cflags_speed='-O5'
3549         _cflags_size='-O5 -qcompact'
3550     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3551         _type=ccc
3552         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3553         _DEPFLAGS='-M'
3554         _cflags_speed='-fast'
3555         _cflags_size='-O1'
3556         _flags_filter=ccc_flags
3557     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3558         test -d "$sysroot" || die "No valid sysroot specified."
3559         _type=armcc
3560         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3561         armcc_conf="$PWD/armcc.conf"
3562         $_cc --arm_linux_configure                 \
3563              --arm_linux_config_file="$armcc_conf" \
3564              --configure_sysroot="$sysroot"        \
3565              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3566              die "Error creating armcc configuration file."
3567         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3568         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3569         as_default="${cross_prefix}gcc"
3570         _depflags='-MMD'
3571         _cflags_speed='-O3'
3572         _cflags_size='-Os'
3573     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3574         _type=tms470
3575         _ident=$($_cc -version | head -n1 | tr -s ' ')
3576         _flags='--gcc --abi=eabi -me'
3577         _cc_e='-ppl -fe=$@'
3578         _cc_o='-fe=$@'
3579         _depflags='-ppa -ppd=$(@:.o=.d)'
3580         _cflags_speed='-O3 -mf=5'
3581         _cflags_size='-O3 -mf=2'
3582         _flags_filter=tms470_flags
3583     elif $_cc -v 2>&1 | grep -q clang; then
3584         _type=clang
3585         _ident=$($_cc --version | head -n1)
3586         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3587         _cflags_speed='-O3'
3588         _cflags_size='-Os'
3589     elif $_cc -V 2>&1 | grep -q Sun; then
3590         _type=suncc
3591         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3592         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3593         _DEPFLAGS='-xM1 -xc99'
3594         _ldflags='-std=c99'
3595         _cflags_speed='-O5'
3596         _cflags_size='-O5 -xspace'
3597         _flags_filter=suncc_flags
3598     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3599         _type=pathscale
3600         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3601         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3602         _cflags_speed='-O2'
3603         _cflags_size='-Os'
3604         _flags_filter='filter_out -Wdisabled-optimization'
3605     elif $_cc -v 2>&1 | grep -q Open64; then
3606         _type=open64
3607         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3608         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3609         _cflags_speed='-O2'
3610         _cflags_size='-Os'
3611         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3612     elif $_cc -V 2>&1 | grep -q Portland; then
3613         _type=pgi
3614         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3615         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3616         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3617         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3618         _cflags_noopt="-O"
3619         _flags_filter=pgi_flags
3620     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3621         _type=armasm
3622         _ident=$($_cc | head -n1)
3623         # 4509: "This form of conditional instruction is deprecated"
3624         _flags="-nologo -ignore 4509"
3625         _flags_filter=armasm_flags
3626     elif $_cc 2>&1 | grep -q Intel; then
3627         _type=icl
3628         _ident=$($_cc 2>&1 | head -n1)
3629         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3630         # Not only is O3 broken on 13.x+ but it is slower on all previous
3631         # versions (tested) as well.
3632         _cflags_speed="-O2"
3633         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3634         if $_cc 2>&1 | grep -q Linker; then
3635             _ld_o='-out:$@'
3636         else
3637             _ld_o='-Fe$@'
3638         fi
3639         _cc_o='-Fo$@'
3640         _cc_e='-P'
3641         _flags_filter=icl_flags
3642         _ld_lib='lib%.a'
3643         _ld_path='-libpath:'
3644         # -Qdiag-error to make icl error when seeing certain unknown arguments
3645         _flags='-nologo -Qdiag-error:4044,10157'
3646         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3647         # with MSVC which enables it by default.
3648         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3649         disable stripping
3650     elif $_cc 2>&1 | grep -q Microsoft; then
3651         _type=msvc
3652         _ident=$($_cc 2>&1 | head -n1)
3653         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3654         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3655         _cflags_speed="-O2"
3656         _cflags_size="-O1"
3657         if $_cc 2>&1 | grep -q Linker; then
3658             _ld_o='-out:$@'
3659         else
3660             _ld_o='-Fe$@'
3661         fi
3662         _cc_o='-Fo$@'
3663         _cc_e='-P -Fi$@'
3664         _flags_filter=msvc_flags
3665         _ld_lib='lib%.a'
3666         _ld_path='-libpath:'
3667         _flags='-nologo'
3668         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3669         disable stripping
3670     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3671         _type=cparser
3672         _ident=$($_cc --version | head -n1)
3673         _depflags='-MMD'
3674         _cflags_speed='-O4'
3675         _cflags_size='-O2'
3676         _flags_filter=cparser_flags
3677     fi
3678
3679     eval ${pfx}_type=\$_type
3680     eval ${pfx}_ident=\$_ident
3681 }
3682
3683 set_ccvars(){
3684     eval ${1}_C=\${_cc_c-\${${1}_C}}
3685     eval ${1}_E=\${_cc_e-\${${1}_E}}
3686     eval ${1}_O=\${_cc_o-\${${1}_O}}
3687
3688     if [ -n "$_depflags" ]; then
3689         eval ${1}_DEPFLAGS=\$_depflags
3690     else
3691         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3692         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3693         eval DEP${1}FLAGS=\$_flags
3694     fi
3695 }
3696
3697 probe_cc cc "$cc"
3698 cflags_filter=$_flags_filter
3699 cflags_speed=$_cflags_speed
3700 cflags_size=$_cflags_size
3701 cflags_noopt=$_cflags_noopt
3702 add_cflags $_flags $_cflags
3703 cc_ldflags=$_ldflags
3704 set_ccvars CC
3705
3706 probe_cc hostcc "$host_cc"
3707 host_cflags_filter=$_flags_filter
3708 add_host_cflags  $_flags $_cflags
3709 set_ccvars HOSTCC
3710
3711 test -n "$cc_type" && enable $cc_type ||
3712     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3713
3714 : ${as_default:=$cc}
3715 : ${dep_cc_default:=$cc}
3716 : ${ld_default:=$cc}
3717 : ${host_ld_default:=$host_cc}
3718 set_default ar as dep_cc ld host_ld windres
3719
3720 probe_cc as "$as"
3721 asflags_filter=$_flags_filter
3722 add_asflags $_flags $_cflags
3723 set_ccvars AS
3724
3725 probe_cc ld "$ld"
3726 ldflags_filter=$_flags_filter
3727 add_ldflags $_flags $_ldflags
3728 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3729 LD_O=${_ld_o-$LD_O}
3730 LD_LIB=${_ld_lib-$LD_LIB}
3731 LD_PATH=${_ld_path-$LD_PATH}
3732
3733 probe_cc hostld "$host_ld"
3734 host_ldflags_filter=$_flags_filter
3735 add_host_ldflags $_flags $_ldflags
3736 HOSTLD_O=${_ld_o-$HOSTLD_O}
3737
3738 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3739     probe_cc depcc "$dep_cc"
3740     CCDEP=${_DEPCMD:-$DEPCMD}
3741     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3742     DEPCCFLAGS=$_flags
3743 fi
3744
3745 if $ar 2>&1 | grep -q Microsoft; then
3746     arflags="-nologo"
3747     ar_o='-out:$@'
3748 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3749     arflags="rq"
3750     ar_o='$@'
3751 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3752     arflags='-Xany -r -c'
3753     ar_o='$@'
3754 elif $ar 2>&1 | grep -q "\[D\] "; then
3755     arflags="rcD"
3756     ar_o='$@'
3757 else
3758     arflags="rc"
3759     ar_o='$@'
3760 fi
3761
3762 add_cflags $extra_cflags
3763 add_cxxflags $extra_cxxflags
3764 add_asflags $extra_cflags
3765
3766 if test -n "$sysroot"; then
3767     case "$cc_type" in
3768         gcc|llvm_gcc|clang)
3769             add_cppflags --sysroot="$sysroot"
3770             add_ldflags --sysroot="$sysroot"
3771 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3772             add_cppflags -isysroot "$sysroot"
3773             add_ldflags -isysroot "$sysroot"
3774         ;;
3775         tms470)
3776             add_cppflags -I"$sysinclude"
3777             add_ldflags  --sysroot="$sysroot"
3778         ;;
3779     esac
3780 fi
3781
3782 if test "$cpu" = host; then
3783     enabled cross_compile &&
3784         die "--cpu=host makes no sense when cross-compiling."
3785
3786     case "$cc_type" in
3787         gcc|llvm_gcc)
3788             check_native(){
3789                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3790                 sed -n "/cc1.*$1=/{
3791                             s/.*$1=\\([^ ]*\\).*/\\1/
3792                             p
3793                             q
3794                         }" $TMPE
3795             }
3796             cpu=$(check_native -march || check_native -mcpu)
3797         ;;
3798     esac
3799
3800     test "${cpu:-host}" = host &&
3801         die "--cpu=host not supported with compiler $cc"
3802 fi
3803
3804 # Deal with common $arch aliases
3805 case "$arch" in
3806     aarch64|arm64)
3807         arch="aarch64"
3808     ;;
3809     arm*|iPad*|iPhone*)
3810         arch="arm"
3811     ;;
3812     mips*|IP*)
3813         arch="mips"
3814     ;;
3815     parisc*|hppa*)
3816         arch="parisc"
3817     ;;
3818     "Power Macintosh"|ppc*|powerpc*)
3819         arch="ppc"
3820     ;;
3821     s390|s390x)
3822         arch="s390"
3823     ;;
3824     sh4|sh)
3825         arch="sh4"
3826     ;;
3827     sun4u|sparc*)
3828         arch="sparc"
3829     ;;
3830     tilegx|tile-gx)
3831         arch="tilegx"
3832     ;;
3833     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3834         arch="x86"
3835     ;;
3836 esac
3837
3838 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3839 enable $arch
3840
3841 # Add processor-specific flags
3842 if enabled aarch64; then
3843
3844     case $cpu in
3845         armv*)
3846             cpuflags="-march=$cpu"
3847         ;;
3848         *)
3849             cpuflags="-mcpu=$cpu"
3850         ;;
3851     esac
3852
3853 elif enabled alpha; then
3854
3855     cpuflags="-mcpu=$cpu"
3856
3857 elif enabled arm; then
3858
3859     check_arm_arch() {
3860         check_cpp_condition stddef.h \
3861             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3862             $cpuflags
3863     }
3864
3865     probe_arm_arch() {
3866         if   check_arm_arch 4;        then echo armv4;
3867         elif check_arm_arch 4T;       then echo armv4t;
3868         elif check_arm_arch 5;        then echo armv5;
3869         elif check_arm_arch 5E;       then echo armv5e;
3870         elif check_arm_arch 5T;       then echo armv5t;
3871         elif check_arm_arch 5TE;      then echo armv5te;
3872         elif check_arm_arch 5TEJ;     then echo armv5te;
3873         elif check_arm_arch 6;        then echo armv6;
3874         elif check_arm_arch 6J;       then echo armv6j;
3875         elif check_arm_arch 6K;       then echo armv6k;
3876         elif check_arm_arch 6Z;       then echo armv6z;
3877         elif check_arm_arch 6ZK;      then echo armv6zk;
3878         elif check_arm_arch 6T2;      then echo armv6t2;
3879         elif check_arm_arch 7;        then echo armv7;
3880         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3881         elif check_arm_arch 7S;       then echo armv7-a;
3882         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3883         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3884         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3885         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3886         fi
3887     }
3888
3889     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3890
3891     case $cpu in
3892         armv*)
3893             cpuflags="-march=$cpu"
3894             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3895         ;;
3896         *)
3897             cpuflags="-mcpu=$cpu"
3898             case $cpu in
3899                 cortex-a*)                               subarch=armv7a  ;;
3900                 cortex-r*)                               subarch=armv7r  ;;
3901                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3902                 arm11*)                                  subarch=armv6   ;;
3903                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3904                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3905                 *)                             subarch=$(probe_arm_arch) ;;
3906             esac
3907         ;;
3908     esac
3909
3910     case "$subarch" in
3911         armv5t*)    enable fast_clz                ;;
3912         armv[6-8]*)
3913             enable fast_clz
3914             disabled fast_unaligned || enable fast_unaligned
3915             ;;
3916     esac
3917
3918 elif enabled avr32; then
3919
3920     case $cpu in
3921         ap7[02]0[0-2])
3922             subarch="avr32_ap"
3923             cpuflags="-mpart=$cpu"
3924         ;;
3925         ap)
3926             subarch="avr32_ap"
3927             cpuflags="-march=$cpu"
3928         ;;
3929         uc3[ab]*)
3930             subarch="avr32_uc"
3931             cpuflags="-mcpu=$cpu"
3932         ;;
3933         uc)
3934             subarch="avr32_uc"
3935             cpuflags="-march=$cpu"
3936         ;;
3937     esac
3938
3939 elif enabled bfin; then
3940
3941     cpuflags="-mcpu=$cpu"
3942
3943 elif enabled mips; then
3944
3945     cpuflags="-march=$cpu"
3946
3947     case $cpu in
3948         24kc)
3949             disable mips32r5
3950             disable mips64r6
3951             disable mipsfpu
3952             disable mipsdspr1
3953             disable mipsdspr2
3954             disable msa
3955         ;;
3956         24kf*)
3957             disable mips32r5
3958             disable mips64r6
3959             disable mipsdspr1
3960             disable mipsdspr2
3961             disable msa
3962         ;;
3963         24kec|34kc|1004kc)
3964             disable mips32r5
3965             disable mips64r6
3966             disable mipsfpu
3967             disable mipsdspr2
3968             disable msa
3969         ;;
3970         24kef*|34kf*|1004kf*)
3971             disable mips32r5
3972             disable mips64r6
3973             disable mipsdspr2
3974             disable msa
3975         ;;
3976         74kc)
3977             disable mips32r5
3978             disable mips64r6
3979             disable mipsfpu
3980             disable msa
3981         ;;
3982         74kf)
3983             disable mips32r5
3984             disable mips64r6
3985             disable msa
3986         ;;
3987         p5600)
3988             disable mips64r6
3989             disable mipsdspr1
3990             disable mipsdspr2
3991
3992             check_cflags "-mtune=p5600"
3993         ;;
3994         i6400)
3995             disable mips32r5
3996             disable mipsdspr1
3997             disable mipsdspr2
3998             disable mipsfpu
3999
4000             check_cflags "-mtune=i6400 -mabi=64"
4001             check_ldflags "-mabi=64"
4002         ;;
4003         loongson*)
4004             disable mipsfpu
4005             disable mips32r2
4006             disable mips32r5
4007             disable mips64r6
4008             disable mipsdspr1
4009             disable mipsdspr2
4010             disable msa
4011             enable local_aligned_8 local_aligned_16 local_aligned_32
4012             enable simd_align_16
4013             enable fast_64bit
4014             enable fast_clz
4015             enable fast_cmov
4016             enable fast_unaligned
4017             disable aligned_stack
4018             case $cpu in
4019                 loongson3*)
4020                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4021                 ;;
4022                 loongson2e)
4023                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4024                 ;;
4025                 loongson2f)
4026                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4027                 ;;
4028             esac
4029         ;;
4030         generic)
4031             disable mips32r5
4032             disable mips64r6
4033             disable msa
4034         ;;
4035     esac
4036
4037 elif enabled ppc; then
4038
4039     disable ldbrx
4040
4041     case $(tolower $cpu) in
4042         601|ppc601|powerpc601)
4043             cpuflags="-mcpu=601"
4044             disable altivec
4045         ;;
4046         603*|ppc603*|powerpc603*)
4047             cpuflags="-mcpu=603"
4048             disable altivec
4049         ;;
4050         604*|ppc604*|powerpc604*)
4051             cpuflags="-mcpu=604"
4052             disable altivec
4053         ;;
4054         g3|75*|ppc75*|powerpc75*)
4055             cpuflags="-mcpu=750"
4056             disable altivec
4057         ;;
4058         g4|745*|ppc745*|powerpc745*)
4059             cpuflags="-mcpu=7450"
4060             disable vsx
4061         ;;
4062         74*|ppc74*|powerpc74*)
4063             cpuflags="-mcpu=7400"
4064             disable vsx
4065         ;;
4066         g5|970|ppc970|powerpc970)
4067             cpuflags="-mcpu=970"
4068             disable vsx
4069         ;;
4070         power[3-6]*)
4071             cpuflags="-mcpu=$cpu"
4072             disable vsx
4073         ;;
4074         power[7-8]*)
4075             cpuflags="-mcpu=$cpu"
4076         ;;
4077         cell)
4078             cpuflags="-mcpu=cell"
4079             enable ldbrx
4080             disable vsx
4081         ;;
4082         e500mc)
4083             cpuflags="-mcpu=e500mc"
4084             disable altivec
4085         ;;
4086         e500v2)
4087             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4088             disable altivec
4089             disable dcbzl
4090         ;;
4091         e500)
4092             cpuflags="-mcpu=8540 -mhard-float"
4093             disable altivec
4094             disable dcbzl
4095         ;;
4096     esac
4097
4098 elif enabled sparc; then
4099
4100     case $cpu in
4101         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4102             cpuflags="-mcpu=$cpu"
4103         ;;
4104         ultrasparc*|niagara[234])
4105             cpuflags="-mcpu=$cpu"
4106         ;;
4107     esac
4108
4109 elif enabled x86; then
4110
4111     case $cpu in
4112         i[345]86|pentium)
4113             cpuflags="-march=$cpu"
4114             disable i686
4115             disable mmx
4116         ;;
4117         # targets that do NOT support nopl and conditional mov (cmov)
4118         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4119             cpuflags="-march=$cpu"
4120             disable i686
4121         ;;
4122         # targets that do support nopl and conditional mov (cmov)
4123         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4124         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4125             cpuflags="-march=$cpu"
4126             enable i686
4127             enable fast_cmov
4128         ;;
4129         # targets that do support conditional mov but on which it's slow
4130         pentium4|pentium4m|prescott|nocona)
4131             cpuflags="-march=$cpu"
4132             enable i686
4133             disable fast_cmov
4134         ;;
4135     esac
4136
4137 fi
4138
4139 if [ "$cpu" != generic ]; then
4140     add_cflags  $cpuflags
4141     add_asflags $cpuflags
4142 fi
4143
4144 # compiler sanity check
4145 check_exec <<EOF
4146 int main(void){ return 0; }
4147 EOF
4148 if test "$?" != 0; then
4149     echo "$cc is unable to create an executable file."
4150     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4151         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4152         echo "Only do this if you know what cross compiling means."
4153     fi
4154     die "C compiler test failed."
4155 fi
4156
4157 add_cppflags -D_ISOC99_SOURCE
4158 add_cxxflags -D__STDC_CONSTANT_MACROS
4159 check_cflags -std=c99
4160 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4161 #include <stdlib.h>
4162 EOF
4163 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4164 #include <stdlib.h>
4165 EOF
4166
4167 add_host_cppflags -D_ISOC99_SOURCE
4168 check_host_cflags -std=c99
4169 check_host_cflags -Wall
4170 check_host_cflags -O3
4171
4172 check_64bit(){
4173     arch32=$1
4174     arch64=$2
4175     expr=$3
4176     check_code cc "" "int test[2*($expr) - 1]" &&
4177         subarch=$arch64 || subarch=$arch32
4178 }
4179
4180 case "$arch" in
4181     aarch64|alpha|ia64)
4182         spic=$shared
4183     ;;
4184     mips)
4185         check_64bit mips mips64 '_MIPS_SIM > 1'
4186         spic=$shared
4187     ;;
4188     parisc)
4189         check_64bit parisc parisc64 'sizeof(void *) > 4'
4190         spic=$shared
4191     ;;
4192     ppc)
4193         check_64bit ppc ppc64 'sizeof(void *) > 4'
4194         spic=$shared
4195     ;;
4196     s390)
4197         check_64bit s390 s390x 'sizeof(void *) > 4'
4198         spic=$shared
4199     ;;
4200     sparc)
4201         check_64bit sparc sparc64 'sizeof(void *) > 4'
4202         spic=$shared
4203     ;;
4204     x86)
4205         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4206         # Treat x32 as x64 for now. Note it also needs spic=$shared
4207         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4208             subarch=x86_64
4209         if test "$subarch" = "x86_64"; then
4210             spic=$shared
4211         fi
4212     ;;
4213     ppc)
4214         check_cc <<EOF && subarch="ppc64"
4215         int test[(int)sizeof(char*) - 7];
4216 EOF
4217     ;;
4218 esac
4219
4220 enable $subarch
4221 enabled spic && enable_weak pic
4222
4223 # OS specific
4224 case $target_os in
4225     aix)
4226         SHFLAGS=-shared
4227         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4228         enabled shared && add_ldflags -Wl,-brtl
4229         ;;
4230     android)
4231         disable symver
4232         enable section_data_rel_ro
4233         SLIB_INSTALL_NAME='$(SLIBNAME)'
4234         SLIB_INSTALL_LINKS=
4235         # soname not set on purpose
4236         SHFLAGS=-shared
4237         ;;
4238     haiku)
4239         prefix_default="/boot/common"
4240         network_extralibs="-lnetwork"
4241         host_libs=
4242         ;;
4243     sunos)
4244         SHFLAGS='-shared -Wl,-h,$$(@F)'
4245         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4246         network_extralibs="-lsocket -lnsl"
4247         add_cppflags -D__EXTENSIONS__
4248         # When using suncc to build, the Solaris linker will mark
4249         # an executable with each instruction set encountered by
4250         # the Solaris assembler.  As our libraries contain their own
4251         # guards for processor-specific code, instead suppress
4252         # generation of the HWCAPS ELF section on Solaris x86 only.
4253         enabled_all suncc x86 &&
4254             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4255             add_ldflags -Wl,-M,mapfile
4256         nm_default='nm -P -g'
4257         ;;
4258     netbsd)
4259         disable symver
4260         oss_indev_extralibs="-lossaudio"
4261         oss_outdev_extralibs="-lossaudio"
4262         enabled gcc || check_ldflags -Wl,-zmuldefs
4263         ;;
4264     openbsd|bitrig)
4265         disable symver
4266         SHFLAGS='-shared'
4267         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4268         SLIB_INSTALL_LINKS=
4269         oss_indev_extralibs="-lossaudio"
4270         oss_outdev_extralibs="-lossaudio"
4271         ;;
4272     dragonfly)
4273         disable symver
4274         ;;
4275     freebsd)
4276         ;;
4277     bsd/os)
4278         add_extralibs -lpoll -lgnugetopt
4279         strip="strip -d"
4280         ;;
4281     darwin)
4282         enabled ppc && add_asflags -force_cpusubtype_ALL
4283         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4284         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4285         strip="${strip} -x"
4286         add_ldflags -Wl,-dynamic,-search_paths_first
4287         SLIBSUF=".dylib"
4288         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4289         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4290         objformat="macho"
4291         enabled x86_64 && objformat="macho64"
4292         enabled_any pic shared x86_64 ||
4293             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4294         ;;
4295     mingw32*)
4296         if test $target_os = "mingw32ce"; then
4297             disable network
4298         else
4299             target_os=mingw32
4300         fi
4301         LIBTARGET=i386
4302         if enabled x86_64; then
4303             LIBTARGET="i386:x86-64"
4304         elif enabled arm; then
4305             LIBTARGET=arm-wince
4306         fi
4307         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4308         check_ldflags -Wl,--nxcompat
4309         check_ldflags -Wl,--dynamicbase
4310         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4311         shlibdir_default="$bindir_default"
4312         SLIBPREF=""
4313         SLIBSUF=".dll"
4314         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4315         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4316         dlltool="${cross_prefix}dlltool"
4317         if check_cmd lib.exe -list; then
4318             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4319             if enabled x86_64; then
4320                 LIBTARGET=x64
4321             fi
4322         elif check_cmd $dlltool --version; then
4323             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4324         fi
4325         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4326         SLIB_INSTALL_LINKS=
4327         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4328         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4329         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4330         objformat="win32"
4331         ranlib=:
4332         enable dos_paths
4333         ;;
4334     win32|win64)
4335         disable symver
4336         if enabled shared; then
4337             # Link to the import library instead of the normal static library
4338             # for shared libs.
4339             LD_LIB='%.lib'
4340             # Cannot build both shared and static libs with MSVC or icl.
4341             disable static
4342         fi
4343         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4344         shlibdir_default="$bindir_default"
4345         SLIBPREF=""
4346         SLIBSUF=".dll"
4347         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4348         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4349         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4350         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4351         SLIB_INSTALL_LINKS=
4352         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4353         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4354         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4355         objformat="win32"
4356         ranlib=:
4357         enable dos_paths
4358         ;;
4359     cygwin*)
4360         target_os=cygwin
4361         shlibdir_default="$bindir_default"
4362         SLIBPREF="cyg"
4363         SLIBSUF=".dll"
4364         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4365         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4366         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4367         SLIB_INSTALL_LINKS=
4368         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4369         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4370         objformat="win32"
4371         enable dos_paths
4372         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4373         ;;
4374     *-dos|freedos|opendos)
4375         network_extralibs="-lsocket"
4376         objformat="coff"
4377         enable dos_paths
4378         add_cppflags -U__STRICT_ANSI__
4379         ;;
4380     linux)
4381         enable dv1394
4382         enable section_data_rel_ro
4383         ;;
4384     irix*)
4385         target_os=irix
4386         ranlib="echo ignoring ranlib"
4387         ;;
4388     os/2*)
4389         strip="lxlite -CS"
4390         ln_s="cp -f"
4391         objformat="aout"
4392         add_cppflags -D_GNU_SOURCE
4393         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4394         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4395         LIBSUF="_s.a"
4396         SLIBPREF=""
4397         SLIBSUF=".dll"
4398         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4399         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4400         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4401             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4402             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4403             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4404             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4405         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4406             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4407         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4408         enable dos_paths
4409         enable_weak os2threads
4410         ;;
4411     gnu/kfreebsd)
4412         add_cppflags -D_BSD_SOURCE
4413         ;;
4414     gnu)
4415         ;;
4416     qnx)
4417         add_cppflags -D_QNX_SOURCE
4418         network_extralibs="-lsocket"
4419         ;;
4420     symbian)
4421         SLIBSUF=".dll"
4422         enable dos_paths
4423         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4424         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4425         add_ldflags -Wl,--target1-abs,--no-undefined \
4426                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4427                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4428         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4429                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4430                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4431         ;;
4432     osf1)
4433         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4434         ;;
4435     minix)
4436         ;;
4437     plan9)
4438         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4439                      -D_REENTRANT_SOURCE        \
4440                      -D_RESEARCH_SOURCE         \
4441                      -DFD_SETSIZE=96            \
4442                      -DHAVE_SOCK_OPTS
4443         add_compat strtod.o strtod=avpriv_strtod
4444         network_extralibs='-lbsd'
4445         exeobjs=compat/plan9/main.o
4446         disable ffserver
4447         cp_f='cp'
4448         ;;
4449     none)
4450         ;;
4451     *)
4452         die "Unknown OS '$target_os'."
4453         ;;
4454 esac
4455
4456 # determine libc flavour
4457
4458 probe_libc(){
4459     pfx=$1
4460     pfx_no_=${pfx%_}
4461     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4462     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4463         eval ${pfx}libc_type=uclibc
4464         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4465     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4466         eval ${pfx}libc_type=glibc
4467         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4468     # MinGW headers can be installed on Cygwin, so check for newlib first.
4469     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4470         eval ${pfx}libc_type=newlib
4471         add_${pfx}cppflags -U__STRICT_ANSI__
4472     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4473     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4474         eval ${pfx}libc_type=mingw64
4475         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4476             add_compat msvcrt/snprintf.o
4477             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4478         fi
4479         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4480         eval test \$${pfx_no_}cc_type = "gcc" &&
4481             add_${pfx}cppflags -D__printf__=__gnu_printf__
4482     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4483          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4484         eval ${pfx}libc_type=mingw32
4485         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4486             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4487             die "ERROR: MinGW32 runtime version must be >= 3.15."
4488         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4489         eval test \$${pfx_no_}cc_type = "gcc" &&
4490             add_${pfx}cppflags -D__printf__=__gnu_printf__
4491     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4492         eval ${pfx}libc_type=msvcrt
4493         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4494             if [ "$pfx" = host_ ]; then
4495                 add_host_cppflags -Dsnprintf=_snprintf
4496             else
4497                 add_compat strtod.o strtod=avpriv_strtod
4498                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4499                                              _snprintf=avpriv_snprintf  \
4500                                              vsnprintf=avpriv_vsnprintf
4501             fi
4502         fi
4503         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4504         # 0x601 by default unless something else is set by the user.
4505         # This can easily lead to us detecting functions only present
4506         # in such new versions and producing binaries requiring windows 7.0.
4507         # Therefore explicitly set the default to XP unless the user has
4508         # set something else on the command line.
4509         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4510             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4511     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4512         eval ${pfx}libc_type=klibc
4513     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4514         eval ${pfx}libc_type=bionic
4515     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4516         eval ${pfx}libc_type=solaris
4517         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4518     fi
4519     check_${pfx}cc <<EOF
4520 #include <time.h>
4521 void *v = localtime_r;
4522 EOF
4523 test "$?" != 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
4524 #include <time.h>
4525 void *v = localtime_r;
4526 EOF
4527
4528 }
4529
4530 probe_libc
4531 test -n "$libc_type" && enable libc_$libc_type
4532 probe_libc host_
4533 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4534
4535 case $libc_type in
4536     bionic)
4537         add_compat strtod.o strtod=avpriv_strtod
4538         ;;
4539 esac
4540
4541 # hacks for compiler/libc/os combinations
4542
4543 if enabled_all tms470 libc_glibc; then
4544     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4545     add_cppflags -D__USER_LABEL_PREFIX__=
4546     add_cppflags -D__builtin_memset=memset
4547     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4548     add_cflags   -pds=48    # incompatible redefinition of macro
4549 fi
4550
4551 if enabled_all ccc libc_glibc; then
4552     add_ldflags -Wl,-z,now  # calls to libots crash without this
4553 fi
4554
4555 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4556     add_cppflags '-I\$(SRC_PATH)/compat/float'
4557
4558 esc(){
4559     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4560 }
4561
4562 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4563
4564 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4565
4566 set_default libdir
4567 : ${shlibdir_default:="$libdir"}
4568 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4569
4570 set_default $PATHS_LIST
4571 set_default nm
4572
4573 # we need to build at least one lib type
4574 if ! enabled_any static shared; then
4575     cat <<EOF
4576 At least one library type must be built.
4577 Specify --enable-static to build the static libraries or --enable-shared to
4578 build the shared libraries as well. To only build the shared libraries specify
4579 --disable-static in addition to --enable-shared.
4580 EOF
4581     exit 1;
4582 fi
4583
4584 die_license_disabled() {
4585     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4586 }
4587
4588 die_license_disabled_gpl() {
4589     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4590 }
4591
4592 die_license_disabled gpl frei0r
4593 die_license_disabled gpl libcdio
4594 die_license_disabled gpl libsmbclient
4595 die_license_disabled gpl libutvideo
4596 die_license_disabled gpl libvidstab
4597 die_license_disabled gpl libx264
4598 die_license_disabled gpl libx265
4599 die_license_disabled gpl libxavs
4600 die_license_disabled gpl libxvid
4601 die_license_disabled gpl libzvbi
4602 die_license_disabled gpl x11grab
4603
4604 die_license_disabled nonfree libaacplus
4605 die_license_disabled nonfree libfaac
4606 die_license_disabled nonfree nvenc
4607 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4608 enabled gpl && die_license_disabled_gpl nonfree openssl
4609
4610 die_license_disabled version3 libopencore_amrnb
4611 die_license_disabled version3 libopencore_amrwb
4612 die_license_disabled version3 libsmbclient
4613 die_license_disabled version3 libvo_aacenc
4614 die_license_disabled version3 libvo_amrwbenc
4615
4616 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4617
4618 disabled optimizations || check_cflags -fomit-frame-pointer
4619
4620 enable_weak_pic() {
4621     disabled pic && return
4622     enable pic
4623     add_cppflags -DPIC
4624     case "$target_os" in
4625     mingw*|cygwin*)
4626         ;;
4627     *)
4628         add_cflags -fPIC
4629         ;;
4630     esac
4631     add_asflags  -fPIC
4632 }
4633
4634 enabled pic && enable_weak_pic
4635
4636 check_cc <<EOF || die "Symbol mangling check failed."
4637 int ff_extern;
4638 EOF
4639 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4640 extern_prefix=${sym%%ff_extern*}
4641
4642 check_cc <<EOF && enable_weak inline_asm
4643 void foo(void) { __asm__ volatile ("" ::); }
4644 EOF
4645
4646 _restrict=
4647 for restrict_keyword in restrict __restrict__ __restrict; do
4648     check_cc <<EOF && _restrict=$restrict_keyword && break
4649 void foo(char * $restrict_keyword p);
4650 EOF
4651 done
4652
4653 check_cc <<EOF && enable pragma_deprecated
4654 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4655 EOF
4656
4657 check_cc <<EOF && enable attribute_packed
4658 struct { int x; } __attribute__((packed)) x;
4659 EOF
4660
4661 check_cc <<EOF && enable attribute_may_alias
4662 union { int x; } __attribute__((may_alias)) x;
4663 EOF
4664
4665 check_cc <<EOF || die "endian test failed"
4666 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4667 EOF
4668 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4669
4670 if ! enabled ppc64 || enabled bigendian; then
4671     disable vsx
4672 fi
4673
4674 check_gas() {
4675     log "check_gas using '$as' as AS"
4676     # :vararg is used on aarch64, arm and ppc altivec
4677     check_as <<EOF || return 1
4678 .macro m n, y:vararg=0
4679 \n: .int \y
4680 .endm
4681 m x
4682 EOF
4683     # .altmacro is only used in arm asm
4684     ! enabled arm || check_as <<EOF || return 1
4685 .altmacro
4686 EOF
4687     enable gnu_as
4688     return 0
4689 }
4690
4691 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4692     nogas=:
4693     enabled_any arm aarch64 && nogas=die
4694     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4695     as_noop=-v
4696
4697     case $as_type in
4698         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4699         gcc)  gaspp_as_type=gas ;;
4700         *)    gaspp_as_type=$as_type ;;
4701     esac
4702
4703     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4704
4705     test "${as#*gas-preprocessor.pl}" != "$as" ||
4706     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4707         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4708
4709     if ! check_gas ; then
4710         as=${gas:=$as}
4711         check_gas || \
4712             $nogas "GNU assembler not found, install/update gas-preprocessor"
4713     fi
4714
4715     check_as <<EOF && enable as_func
4716 .func test
4717 .endfunc
4718 EOF
4719 fi
4720
4721 check_inline_asm inline_asm_labels '"1:\n"'
4722
4723 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4724
4725 if enabled aarch64; then
4726     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4727     # internal assembler in clang 3.3 does not support this instruction
4728     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4729     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4730
4731     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4732
4733 elif enabled alpha; then
4734
4735     check_cflags -mieee
4736
4737 elif enabled arm; then
4738
4739     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4740 float func(float a, float b){ return a+b; }
4741 EOF
4742
4743     enabled thumb && check_cflags -mthumb || check_cflags -marm
4744
4745     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4746         enable vfp_args
4747     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4748         case "${cross_prefix:-$cc}" in
4749             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4750             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4751 __asm__ (".eabi_attribute 28, 1");
4752 int main(void) { return 0; }
4753 EOF
4754         esac
4755         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4756     fi
4757
4758     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4759     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4760     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4761     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4762     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4763     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4764     enabled setend  && check_insn setend  'setend be'
4765
4766     [ $target_os = linux ] || [ $target_os = android ] ||
4767         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4768             $ARCH_EXT_LIST_ARM
4769
4770     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4771
4772     check_as <<EOF && enable as_dn_directive
4773 ra .dn d0.i16
4774 .unreq ra
4775 EOF
4776
4777     # llvm's integrated assembler supports .object_arch from llvm 3.5
4778     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4779 .object_arch armv4
4780 EOF
4781
4782     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4783
4784 elif enabled mips; then
4785
4786     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
4787     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
4788     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
4789
4790     # Enable minimum ISA based on selected options
4791     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then
4792         add_cflags "-mips64r2"
4793         add_asflags "-mips64r2"
4794     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
4795         add_cflags "-mips64"
4796         add_asflags "-mips64"
4797     elif enabled mipsdspr1 || enabled mipsdspr2; then
4798         add_cflags "-mips32r2 -mfp32"
4799         add_asflags "-mips32r2 -mfp32"
4800     elif enabled mips32r5 || enabled mips64r6; then
4801         check_cflags "-mfp64"
4802         check_ldflags "-mfp64"
4803     fi
4804
4805     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&
4806      check_ldflags "-mips32r5" &&
4807      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'
4808     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&
4809      check_ldflags "-mips64r6" &&
4810      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'
4811     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4812      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4813     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4814      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4815     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4816      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4817     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
4818      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
4819
4820     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"
4821     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"
4822     enabled msa && add_asflags "-mmsa"
4823
4824 elif enabled parisc; then
4825
4826     if enabled gcc; then
4827         case $($cc -dumpversion) in
4828             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4829         esac
4830     fi
4831
4832 elif enabled ppc; then
4833
4834     enable local_aligned_8 local_aligned_16 local_aligned_32
4835
4836     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4837     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4838     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4839     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4840
4841     # AltiVec flags: The FSF version of GCC differs from the Apple version
4842     if enabled altivec; then
4843         check_cflags -maltivec -mabi=altivec &&
4844         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4845         check_cflags -faltivec
4846
4847         # check if our compiler supports Motorola AltiVec C API
4848         check_cc <<EOF || disable altivec
4849 $inc_altivec_h
4850 int main(void) {
4851     vector signed int v1 = (vector signed int) { 0 };
4852     vector signed int v2 = (vector signed int) { 1 };
4853     v1 = vec_add(v1, v2);
4854     return 0;
4855 }
4856 EOF
4857
4858         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4859     fi
4860
4861     if enabled vsx; then
4862         check_cflags -mvsx &&
4863         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4864     fi
4865
4866     if enabled power8; then
4867         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4868     fi
4869
4870 elif enabled x86; then
4871
4872     check_builtin rdtsc    intrin.h   "__rdtsc()"
4873     check_builtin mm_empty mmintrin.h "_mm_empty()"
4874
4875     enable local_aligned_8 local_aligned_16 local_aligned_32
4876
4877     # check whether EBP is available on x86
4878     # As 'i' is stored on the stack, this program will crash
4879     # if the base pointer is used to access it because the
4880     # base pointer is cleared in the inline assembly code.
4881     check_exec_crash <<EOF && enable ebp_available
4882 volatile int i=0;
4883 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4884 return i;
4885 EOF
4886
4887     # check whether EBX is available on x86
4888     check_inline_asm ebx_available '""::"b"(0)' &&
4889         check_inline_asm ebx_available '"":::"%ebx"'
4890
4891     # check whether xmm clobbers are supported
4892     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4893
4894     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4895         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4896
4897     # check whether binutils is new enough to compile SSSE3/MMXEXT
4898     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4899     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4900
4901     if ! disabled_any asm mmx yasm; then
4902         if check_cmd $yasmexe --version; then
4903             enabled x86_64 && yasm_extra="-m amd64"
4904             yasm_debug="-g dwarf2"
4905         elif check_cmd nasm -v; then
4906             yasmexe=nasm
4907             yasm_debug="-g -F dwarf"
4908             if enabled x86_64; then
4909                 case "$objformat" in
4910                     elf)   objformat=elf64 ;;
4911                     win32) objformat=win64 ;;
4912                 esac
4913             fi
4914         fi
4915
4916         YASMFLAGS="-f $objformat $yasm_extra"
4917         enabled pic               && append YASMFLAGS "-DPIC"
4918         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4919         case "$objformat" in
4920             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4921         esac
4922
4923         check_yasm "movbe ecx, [5]" && enable yasm ||
4924             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4925         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4926         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4927         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4928         check_yasm "CPU amdnop" || disable cpunop
4929     fi
4930
4931     case "$cpu" in
4932         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4933             disable fast_clz
4934         ;;
4935     esac
4936
4937 fi
4938
4939 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4940
4941 check_ldflags -Wl,--as-needed
4942 check_ldflags -Wl,-z,noexecstack
4943
4944 if check_func dlopen; then
4945     ldl=
4946 elif check_func dlopen -ldl; then
4947     ldl=-ldl
4948 fi
4949
4950 frei0r_filter_extralibs='$ldl'
4951 frei0r_src_filter_extralibs='$ldl'
4952 ladspa_filter_extralibs='$ldl'
4953 nvenc_encoder_extralibs='$ldl'
4954
4955 if ! disabled network; then
4956     check_func getaddrinfo $network_extralibs
4957     check_func getservbyport $network_extralibs
4958     check_func inet_aton $network_extralibs
4959
4960     check_type netdb.h "struct addrinfo"
4961     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4962     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4963     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4964     check_type poll.h "struct pollfd"
4965     check_type netinet/sctp.h "struct sctp_event_subscribe"
4966     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4967     check_type netinet/in.h "struct sockaddr_in6"
4968     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4969     check_type "sys/types.h sys/socket.h" socklen_t
4970
4971     # Prefer arpa/inet.h over winsock2
4972     if check_header arpa/inet.h ; then
4973         check_func closesocket
4974     elif check_header winsock2.h ; then
4975         check_func_headers winsock2.h closesocket -lws2 &&
4976             network_extralibs="-lws2" ||
4977         { check_func_headers winsock2.h closesocket -lws2_32 &&
4978             network_extralibs="-lws2_32"; } || disable winsock2_h network
4979         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4980
4981         check_type ws2tcpip.h socklen_t
4982         check_type ws2tcpip.h "struct addrinfo"
4983         check_type ws2tcpip.h "struct group_source_req"
4984         check_type ws2tcpip.h "struct ip_mreq_source"
4985         check_type ws2tcpip.h "struct ipv6_mreq"
4986         check_type winsock2.h "struct pollfd"
4987         check_struct winsock2.h "struct sockaddr" sa_len
4988         check_type ws2tcpip.h "struct sockaddr_in6"
4989         check_type ws2tcpip.h "struct sockaddr_storage"
4990     else
4991         disable network
4992     fi
4993 fi
4994
4995 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4996 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
4997 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4998 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4999 check_builtin sarestart signal.h "SA_RESTART"
5000 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5001 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5002 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5003
5004 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5005 check_func  ${malloc_prefix}memalign            && enable memalign
5006 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5007
5008 check_func  access
5009 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5010 check_func  fcntl
5011 check_func  fork
5012 check_func  gethrtime
5013 check_func  getopt
5014 check_func  getrusage
5015 check_func  gettimeofday
5016 check_func  isatty
5017 check_func  mach_absolute_time
5018 check_func  mkstemp
5019 check_func  mmap
5020 check_func  mprotect
5021 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5022 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5023 check_func  sched_getaffinity
5024 check_func  setrlimit
5025 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5026 check_func  strerror_r
5027 check_func  sysconf
5028 check_func  sysctl
5029 check_func  usleep
5030
5031 check_func_headers conio.h kbhit
5032 check_func_headers io.h setmode
5033 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5034 check_func_headers stdlib.h getenv
5035
5036 check_func_headers windows.h CoTaskMemFree -lole32
5037 check_func_headers windows.h GetProcessAffinityMask
5038 check_func_headers windows.h GetProcessTimes
5039 check_func_headers windows.h GetSystemTimeAsFileTime
5040 check_func_headers windows.h MapViewOfFile
5041 check_func_headers windows.h PeekNamedPipe
5042 check_func_headers windows.h SetConsoleTextAttribute
5043 check_func_headers windows.h SetConsoleCtrlHandler
5044 check_func_headers windows.h Sleep
5045 check_func_headers windows.h VirtualAlloc
5046 check_struct windows.h "CONDITION_VARIABLE" Ptr
5047 check_func_headers glob.h glob
5048 enabled xlib &&
5049     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5050
5051 check_header direct.h
5052 check_header dlfcn.h
5053 check_header d3d11.h
5054 check_header dxva.h
5055 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5056 check_header io.h
5057 check_header libcrystalhd/libcrystalhd_if.h
5058 check_header mach/mach_time.h
5059 check_header malloc.h
5060 check_header net/udplite.h
5061 check_header poll.h
5062 check_header sys/mman.h
5063 check_header sys/param.h
5064 check_header sys/resource.h
5065 check_header sys/select.h
5066 check_header sys/time.h
5067 check_header sys/un.h
5068 check_header termios.h
5069 check_header unistd.h
5070 check_header valgrind/valgrind.h
5071 check_header vdpau/vdpau.h
5072 check_header vdpau/vdpau_x11.h
5073 check_header VideoDecodeAcceleration/VDADecoder.h
5074 check_header windows.h
5075 check_header X11/extensions/XvMClib.h
5076 check_header asm/types.h
5077
5078 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5079 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5080 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5081
5082 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5083
5084 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
5085 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5086 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0600
5087
5088 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5089
5090 if ! disabled w32threads && ! enabled pthreads; then
5091     check_func_headers "windows.h process.h" _beginthreadex &&
5092         enable w32threads || disable w32threads
5093 fi
5094
5095 # check for some common methods of building with pthread support
5096 # do this before the optional library checks as some of them require pthreads
5097 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5098     enable pthreads
5099     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5100         add_cflags -pthread
5101         add_extralibs -pthread
5102     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5103         add_cflags -pthreads
5104         add_extralibs -pthreads
5105     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5106         add_cflags -ldl -pthread
5107         add_extralibs -ldl -pthread
5108     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5109         add_extralibs -lpthreadGC2
5110     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5111         :
5112     elif ! check_func pthread_join && ! check_func pthread_create; then
5113         disable pthreads
5114     fi
5115     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5116 fi
5117
5118
5119 if enabled pthreads; then
5120   check_func pthread_cancel
5121 fi
5122
5123 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5124 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5125 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5126
5127 check_lib math.h sin -lm && LIBM="-lm"
5128 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5129
5130 atan2f_args=2
5131 ldexpf_args=2
5132 powf_args=2
5133
5134 for func in $MATH_FUNCS; do
5135     eval check_mathfunc $func \${${func}_args:-1}
5136 done
5137
5138 # these are off by default, so fail if requested and not available
5139 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5140 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5141                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5142 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5143                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5144                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5145 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5146 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5147 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5148 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5149 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5150 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5151 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5152 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5153 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5154 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5155                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5156                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5157 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5158 enabled libdcadec         && require_pkg_config dcadec libdcadec/dca_context.h dcadec_context_create &&
5159                              check_struct libdcadec/dca_context.h "struct dcadec_exss_info" matrix_encoding
5160 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5161 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5162                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5163                                  warn "using libfdk without pkg-config"; } }
5164 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"
5165 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5166 enabled fontconfig        && enable libfontconfig
5167 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5168 enabled libfreetype       && require_libfreetype
5169 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5170 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5171 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5172                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5173                                done || die "ERROR: libgsm not found"; }
5174 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5175 enabled libkvazaar        && require2 libkvazaar kvazaar.h kvz_api_get -lkvazaar
5176 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5177 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5178 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5179 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5180 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5181 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5182 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5183 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5184 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
5185                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5186                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5187                                die "ERROR: libopenjpeg not found"; }
5188 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5189 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5190 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5191 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5192 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5193 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5194 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5195                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5196 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5197 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
5198 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5199 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5200 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
5201     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
5202     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
5203 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5204 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5205                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5206                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5207 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5208 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5209 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5210 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5211 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5212 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5213
5214 enabled libvpx            && {
5215     enabled libvpx_vp8_decoder && {
5216         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5217             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5218                 die "ERROR: libvpx decoder version must be >=0.9.1";
5219     }
5220     enabled libvpx_vp8_encoder && {
5221         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5222             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5223                 die "ERROR: libvpx encoder version must be >=0.9.7";
5224     }
5225     enabled libvpx_vp9_decoder && {
5226         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5227             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5228                 disable libvpx_vp9_decoder;
5229     }
5230     enabled libvpx_vp9_encoder && {
5231         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5232             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5233                 disable libvpx_vp9_encoder;
5234     }
5235     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5236         die "libvpx enabled but no supported decoders found"
5237     fi
5238 }
5239
5240 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5241 enabled libwebp           && {
5242     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5243     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5244 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5245                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5246                                  warn "using libx264 without pkg-config"; } } &&
5247                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5248                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5249                              { check_cpp_condition x264.h "X264_MPEG2" &&
5250                                enable libx262; }
5251 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5252                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5253                                die "ERROR: libx265 version must be >= 57."; }
5254 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5255 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5256 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5257 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5258 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5259                                 { ! enabled cross_compile && {
5260                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5261                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5262                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5263                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5264                                die "ERROR: mmal not found"; }
5265 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5266                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5267                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5268                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5269 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5270                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5271                                die "ERROR: openal not found"; } &&
5272                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5273                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5274 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5275                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5276                                die "ERROR: opencl not found"; } &&
5277                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5278                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5279                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5280 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5281                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5282                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5283                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5284                                die "ERROR: opengl not found."
5285                              }
5286 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5287                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5288                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5289                                die "ERROR: openssl not found"; }
5290 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
5291
5292 if enabled gnutls; then
5293     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
5294     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
5295 fi
5296
5297 # libdc1394 check
5298 if enabled libdc1394; then
5299     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5300         enable libdc1394_2; } ||
5301     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5302         enable libdc1394_1; } ||
5303     die "ERROR: No version of libdc1394 found "
5304 fi
5305 if ! disabled sdl; then
5306     SDL_CONFIG="${cross_prefix}sdl-config"
5307     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5308         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5309         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5310         enable sdl
5311     else
5312         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5313             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5314             sdl_libs=$("${SDL_CONFIG}" --libs)
5315             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5316             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5317             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5318             enable sdl
5319         elif enabled sdl ; then
5320             die "ERROR: SDL not found"
5321         else
5322             disable sdl
5323         fi
5324     fi
5325 fi
5326 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5327
5328 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5329     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5330     enable securetransport; }
5331
5332 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5333 enabled makeinfo \
5334     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5335     && enable makeinfo_html || disable makeinfo_html
5336 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5337 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5338 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5339 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5340
5341 check_header linux/fb.h
5342 check_header linux/videodev.h
5343 check_header linux/videodev2.h
5344 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5345
5346 check_header sys/videoio.h
5347 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5348
5349 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5350 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5351 # w32api 3.12 had it defined wrong
5352 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5353
5354 check_type "dshow.h" IBaseFilter
5355
5356 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5357 { check_header dev/bktr/ioctl_meteor.h &&
5358   check_header dev/bktr/ioctl_bt848.h; } ||
5359 { check_header machine/ioctl_meteor.h &&
5360   check_header machine/ioctl_bt848.h; } ||
5361 { check_header dev/video/meteor/ioctl_meteor.h &&
5362   check_header dev/video/bktr/ioctl_bt848.h; } ||
5363 check_header dev/ic/bt8xx.h
5364
5365 check_header sndio.h
5366 if check_struct sys/soundcard.h audio_buf_info bytes; then
5367     enable_safe sys/soundcard.h
5368 else
5369     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5370     #include <sys/soundcard.h>
5371     audio_buf_info abc;
5372 EOF
5373 fi
5374 check_header soundcard.h
5375
5376 enabled_any alsa_indev alsa_outdev &&
5377     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5378
5379 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5380     check_func jack_port_get_latency_range -ljack
5381
5382 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5383
5384 if enabled libcdio; then
5385     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5386     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5387     die "ERROR: No usable libcdio/cdparanoia found"
5388 fi
5389
5390 enabled xlib &&
5391     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5392
5393 if ! disabled libxcb; then
5394     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5395         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5396     } && disable x11grab && enable libxcb
5397
5398 if enabled libxcb; then
5399     disabled libxcb_shm || {
5400         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5401             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5402         } && check_header sys/shm.h && enable libxcb_shm; }
5403
5404     disabled libxcb_xfixes || {
5405         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5406             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5407         } && enable libxcb_xfixes; }
5408
5409     disabled libxcb_shape || {
5410         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5411             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5412         } && enable libxcb_shape; }
5413
5414     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5415     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5416 fi
5417 fi
5418
5419 if enabled x11grab; then
5420     enabled xlib || die "ERROR: Xlib not found"
5421     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5422     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5423 fi
5424
5425 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5426
5427 enabled dxva2api_h &&
5428     check_cc <<EOF && enable dxva2api_cobj
5429 #define _WIN32_WINNT 0x0600
5430 #define COBJMACROS
5431 #include <windows.h>
5432 #include <d3d9.h>
5433 #include <dxva2api.h>
5434 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5435 EOF
5436
5437 enabled vaapi &&
5438     check_lib va/va.h vaInitialize -lva ||
5439     disable vaapi
5440
5441 enabled vaapi && enabled xlib &&
5442     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5443     enable vaapi_x11
5444
5445 enabled vdpau &&
5446     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5447     disable vdpau
5448
5449 enabled vdpau && enabled xlib &&
5450     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5451     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5452     enable vdpau_x11
5453
5454 # Funny iconv installations are not unusual, so check it after all flags have been set
5455 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5456
5457 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5458
5459 # add some useful compiler flags if supported
5460 check_cflags -Wdeclaration-after-statement
5461 check_cflags -Wall
5462 check_cflags -Wdisabled-optimization
5463 check_cflags -Wpointer-arith
5464 check_cflags -Wredundant-decls
5465 check_cflags -Wwrite-strings
5466 check_cflags -Wtype-limits
5467 check_cflags -Wundef
5468 check_cflags -Wmissing-prototypes
5469 check_cflags -Wno-pointer-to-int-cast
5470 check_cflags -Wstrict-prototypes
5471 check_cflags -Wempty-body
5472 enabled extra_warnings && check_cflags -Winline
5473
5474 check_disable_warning(){
5475     warning_flag=-W${1#-Wno-}
5476     test_cflags $warning_flag && add_cflags $1
5477 }
5478
5479 check_disable_warning -Wno-parentheses
5480 check_disable_warning -Wno-switch
5481 check_disable_warning -Wno-format-zero-length
5482 check_disable_warning -Wno-pointer-sign
5483
5484 # add some linker flags
5485 check_ldflags -Wl,--warn-common
5486 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5487 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5488 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5489 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5490
5491 # add some strip flags
5492 # -wN '..@*' is more selective than -x, but not available everywhere.
5493 check_stripflags -wN \'..@*\' || check_stripflags -x
5494
5495 enabled neon_clobber_test &&
5496     check_ldflags -Wl,--wrap,avcodec_open2              \
5497                   -Wl,--wrap,avcodec_decode_audio4      \
5498                   -Wl,--wrap,avcodec_decode_video2      \
5499                   -Wl,--wrap,avcodec_decode_subtitle2   \
5500                   -Wl,--wrap,avcodec_encode_audio2      \
5501                   -Wl,--wrap,avcodec_encode_video2      \
5502                   -Wl,--wrap,avcodec_encode_subtitle    \
5503                   -Wl,--wrap,swr_convert                \
5504                   -Wl,--wrap,avresample_convert ||
5505     disable neon_clobber_test
5506
5507 enabled xmm_clobber_test &&
5508     check_ldflags -Wl,--wrap,avcodec_open2              \
5509                   -Wl,--wrap,avcodec_decode_audio4      \
5510                   -Wl,--wrap,avcodec_decode_video2      \
5511                   -Wl,--wrap,avcodec_decode_subtitle2   \
5512                   -Wl,--wrap,avcodec_encode_audio2      \
5513                   -Wl,--wrap,avcodec_encode_video       \
5514                   -Wl,--wrap,avcodec_encode_video2      \
5515                   -Wl,--wrap,avcodec_encode_subtitle    \
5516                   -Wl,--wrap,swr_convert                \
5517                   -Wl,--wrap,avresample_convert         \
5518                   -Wl,--wrap,sws_scale ||
5519     disable xmm_clobber_test
5520
5521 echo "X{};" > $TMPV
5522 if test_ldflags -Wl,--version-script,$TMPV; then
5523     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5524     check_cc <<EOF && enable symver_asm_label
5525 void ff_foo(void) __asm__ ("av_foo@VERSION");
5526 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5527 EOF
5528     check_cc <<EOF && enable symver_gnu_asm
5529 __asm__(".symver ff_foo,av_foo@VERSION");
5530 void ff_foo(void) {}
5531 EOF
5532 fi
5533
5534 if [ -z "$optflags" ]; then
5535     if enabled small; then
5536         optflags=$cflags_size
5537     elif enabled optimizations; then
5538         optflags=$cflags_speed
5539     else
5540         optflags=$cflags_noopt
5541     fi
5542 fi
5543
5544 check_optflags(){
5545     check_cflags "$@"
5546     enabled lto && check_ldflags "$@"
5547 }
5548
5549
5550 if enabled lto; then
5551     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5552     check_cflags  -flto
5553     check_ldflags -flto $cpuflags
5554     disable inline_asm_direct_symbol_refs
5555 fi
5556
5557 check_optflags $optflags
5558 check_optflags -fno-math-errno
5559 check_optflags -fno-signed-zeros
5560
5561 enabled ftrapv && check_cflags -ftrapv
5562
5563 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5564 int x;
5565 EOF
5566
5567
5568 if enabled icc; then
5569     # Just warnings, no remarks
5570     check_cflags -w1
5571     # -wd: Disable following warnings
5572     # 144, 167, 556: -Wno-pointer-sign
5573     # 188: enumerated type mixed with another type
5574     # 1292: attribute "foo" ignored
5575     # 1419: external declaration in primary source file
5576     # 10006: ignoring unknown option -fno-signed-zeros
5577     # 10148: ignoring unknown option -Wno-parentheses
5578     # 10156: ignoring option '-W'; no argument required
5579     # 13200: No EMMS instruction before call to function
5580     # 13203: No EMMS instruction before return from function
5581     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5582     # 11030: Warning unknown option --as-needed
5583     # 10156: ignoring option '-export'; no argument required
5584     check_ldflags -wd10156,11030
5585     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5586     enable ebp_available
5587     # The test above does not test linking
5588     enabled lto && disable symver_asm_label
5589     if enabled x86_32; then
5590         icc_version=$($cc -dumpversion)
5591         test ${icc_version%%.*} -ge 11 &&
5592             check_cflags -falign-stack=maintain-16-byte ||
5593             disable aligned_stack
5594     fi
5595 elif enabled ccc; then
5596     # disable some annoying warnings
5597     add_cflags -msg_disable bitnotint
5598     add_cflags -msg_disable mixfuncvoid
5599     add_cflags -msg_disable nonstandcast
5600     add_cflags -msg_disable unsupieee
5601 elif enabled gcc; then
5602     check_optflags -fno-tree-vectorize
5603     check_cflags -Werror=format-security
5604     check_cflags -Werror=implicit-function-declaration
5605     check_cflags -Werror=missing-prototypes
5606     check_cflags -Werror=return-type
5607     check_cflags -Werror=vla
5608     check_cflags -Wformat
5609     check_cflags -fdiagnostics-color=auto
5610     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5611 elif enabled llvm_gcc; then
5612     check_cflags -mllvm -stack-alignment=16
5613 elif enabled clang; then
5614     check_cflags -mllvm -stack-alignment=16
5615     check_cflags -Qunused-arguments
5616     check_cflags -Werror=implicit-function-declaration
5617     check_cflags -Werror=missing-prototypes
5618     check_cflags -Werror=return-type
5619 elif enabled cparser; then
5620     add_cflags -Wno-missing-variable-declarations
5621     add_cflags -Wno-empty-statement
5622 elif enabled armcc; then
5623     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5624     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5625     # 2523: use of inline assembly is deprecated
5626     add_cflags -W${armcc_opt},--diag_suppress=2523
5627     add_cflags -W${armcc_opt},--diag_suppress=1207
5628     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5629     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5630     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5631     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5632 elif enabled tms470; then
5633     add_cflags -pds=824 -pds=837
5634     disable inline_asm
5635 elif enabled pathscale; then
5636     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5637 elif enabled_any msvc icl; then
5638     enabled x86_32 && disable aligned_stack
5639     enabled_all x86_32 debug && add_cflags -Oy-
5640     enabled debug && add_ldflags -debug
5641     enable pragma_deprecated
5642     if enabled icl; then
5643         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5644         # (correctly) on icl 13.x.
5645         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5646             add_cflags -Qansi-alias
5647         # Some inline asm is not compilable in debug
5648         if enabled debug; then
5649             disable ebp_available
5650             disable ebx_available
5651         fi
5652     fi
5653     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5654     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5655 fi
5656
5657 case $as_type in
5658     clang)
5659         add_asflags -Qunused-arguments
5660     ;;
5661 esac
5662
5663 case $ld_type in
5664     clang)
5665         check_ldflags -Qunused-arguments
5666     ;;
5667 esac
5668
5669 case $target_os in
5670     osf1)
5671         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5672     ;;
5673     plan9)
5674         add_cppflags -Dmain=plan9_main
5675     ;;
5676 esac
5677
5678 enable frame_thread_encoder
5679
5680 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5681
5682 check_deps $CONFIG_LIST       \
5683            $CONFIG_EXTRA      \
5684            $HAVE_LIST         \
5685            $ALL_COMPONENTS    \
5686
5687 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"
5688
5689
5690 if test $target_os = "haiku"; then
5691     disable memalign
5692     disable posix_memalign
5693 fi
5694
5695 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5696     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5697     enable dxva2_lib
5698
5699 ! enabled_any memalign posix_memalign aligned_malloc &&
5700     enabled simd_align_16 && enable memalign_hack
5701
5702 # add_dep lib dep
5703 # -> enable ${lib}_deps_${dep}
5704 # -> add $dep to ${lib}_deps only once
5705 add_dep() {
5706     lib=$1
5707     dep=$2
5708     enabled "${lib}_deps_${dep}" && return 0
5709     enable  "${lib}_deps_${dep}"
5710     prepend "${lib}_deps" $dep
5711 }
5712
5713 # merge deps lib components
5714 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5715 merge_deps() {
5716     lib=$1
5717     shift
5718     for comp in $*; do
5719         enabled $comp || continue
5720         eval "dep=\"\$${comp}_deps\""
5721         for d in $dep; do
5722             add_dep $lib $d
5723         done
5724     done
5725 }
5726
5727 merge_deps libavfilter $FILTER_LIST
5728
5729 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5730
5731 for thread in $THREADS_LIST; do
5732     if enabled $thread; then
5733         test -n "$thread_type" &&
5734             die "ERROR: Only one thread type must be selected." ||
5735             thread_type="$thread"
5736     fi
5737 done
5738
5739 enabled zlib && add_cppflags -DZLIB_CONST
5740
5741 # conditional library dependencies, in linking order
5742 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5743 enabled aresample_filter    && prepend avfilter_deps "swresample"
5744 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5745 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5746 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
5747 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5748 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5749 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
5750 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
5751 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5752 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5753 enabled pan_filter          && prepend avfilter_deps "swresample"
5754 enabled pp_filter           && prepend avfilter_deps "postproc"
5755 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5756 enabled resample_filter && prepend avfilter_deps "avresample"
5757 enabled sab_filter          && prepend avfilter_deps "swscale"
5758 enabled scale_filter    && prepend avfilter_deps "swscale"
5759 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5760 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5761 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5762 enabled uspp_filter         && prepend avfilter_deps "avcodec"
5763
5764 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5765
5766 enabled opus_decoder    && prepend avcodec_deps "swresample"
5767
5768 expand_deps(){
5769     lib_deps=${1}_deps
5770     eval "deps=\$$lib_deps"
5771     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5772     unique $lib_deps
5773 }
5774
5775 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5776 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5777
5778 map 'expand_deps $v' $LIBRARY_LIST
5779
5780 echo "install prefix            $prefix"
5781 echo "source path               $source_path"
5782 echo "C compiler                $cc"
5783 echo "C library                 $libc_type"
5784 if test "$host_cc" != "$cc"; then
5785     echo "host C compiler           $host_cc"
5786     echo "host C library            $host_libc_type"
5787 fi
5788 echo "ARCH                      $arch ($cpu)"
5789 if test "$build_suffix" != ""; then
5790     echo "build suffix              $build_suffix"
5791 fi
5792 if test "$progs_suffix" != ""; then
5793     echo "progs suffix              $progs_suffix"
5794 fi
5795 if test "$extra_version" != ""; then
5796     echo "version string suffix     $extra_version"
5797 fi
5798 echo "big-endian                ${bigendian-no}"
5799 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5800 if enabled x86; then
5801     echo "${yasmexe}                      ${yasm-no}"
5802     echo "MMX enabled               ${mmx-no}"
5803     echo "MMXEXT enabled            ${mmxext-no}"
5804     echo "3DNow! enabled            ${amd3dnow-no}"
5805     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5806     echo "SSE enabled               ${sse-no}"
5807     echo "SSSE3 enabled             ${ssse3-no}"
5808     echo "AVX enabled               ${avx-no}"
5809     echo "XOP enabled               ${xop-no}"
5810     echo "FMA3 enabled              ${fma3-no}"
5811     echo "FMA4 enabled              ${fma4-no}"
5812     echo "i686 features enabled     ${i686-no}"
5813     echo "CMOV is fast              ${fast_cmov-no}"
5814     echo "EBX available             ${ebx_available-no}"
5815     echo "EBP available             ${ebp_available-no}"
5816 fi
5817 if enabled aarch64; then
5818     echo "NEON enabled              ${neon-no}"
5819     echo "VFP enabled               ${vfp-no}"
5820 fi
5821 if enabled arm; then
5822     echo "ARMv5TE enabled           ${armv5te-no}"
5823     echo "ARMv6 enabled             ${armv6-no}"
5824     echo "ARMv6T2 enabled           ${armv6t2-no}"
5825     echo "VFP enabled               ${vfp-no}"
5826     echo "NEON enabled              ${neon-no}"
5827     echo "THUMB enabled             ${thumb-no}"
5828 fi
5829 if enabled mips; then
5830     echo "MIPS FPU enabled          ${mipsfpu-no}"
5831     echo "MIPS32R5 enabled          ${mips32r5-no}"
5832     echo "MIPS64R6 enabled          ${mips64r6-no}"
5833     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5834     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5835     echo "MIPS MSA enabled          ${msa-no}"
5836     echo "LOONGSON MMI enabled      ${mmi-no}"
5837 fi
5838 if enabled ppc; then
5839     echo "AltiVec enabled           ${altivec-no}"
5840     echo "VSX enabled               ${vsx-no}"
5841     echo "POWER8 enabled            ${power8-no}"
5842     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5843     echo "dcbzl available           ${dcbzl-no}"
5844 fi
5845 echo "debug symbols             ${debug-no}"
5846 echo "strip symbols             ${stripping-no}"
5847 echo "optimize for size         ${small-no}"
5848 echo "optimizations             ${optimizations-no}"
5849 echo "static                    ${static-no}"
5850 echo "shared                    ${shared-no}"
5851 echo "postprocessing support    ${postproc-no}"
5852 echo "new filter support        ${avfilter-no}"
5853 echo "network support           ${network-no}"
5854 echo "threading support         ${thread_type-no}"
5855 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5856 echo "SDL support               ${sdl-no}"
5857 echo "opencl enabled            ${opencl-no}"
5858 echo "texi2html enabled         ${texi2html-no}"
5859 echo "perl enabled              ${perl-no}"
5860 echo "pod2man enabled           ${pod2man-no}"
5861 echo "makeinfo enabled          ${makeinfo-no}"
5862 echo "makeinfo supports HTML    ${makeinfo_html-no}"
5863 test -n "$random_seed" &&
5864     echo "random seed               ${random_seed}"
5865 echo
5866
5867 echo "External libraries:"
5868 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5869 echo
5870
5871 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5872     echo "Enabled ${type}s:"
5873     eval list=\$$(toupper $type)_LIST
5874     print_enabled '_*' $list | print_3_columns
5875     echo
5876 done
5877
5878 license="LGPL version 2.1 or later"
5879 if enabled nonfree; then
5880     license="nonfree and unredistributable"
5881 elif enabled gplv3; then
5882     license="GPL version 3 or later"
5883 elif enabled lgplv3; then
5884     license="LGPL version 3 or later"
5885 elif enabled gpl; then
5886     license="GPL version 2 or later"
5887 fi
5888
5889 echo "License: $license"
5890
5891 echo "Creating config.mak, config.h, and doc/config.texi..."
5892
5893 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5894
5895 enabled stripping || strip="echo skipping strip"
5896
5897 config_files="$TMPH config.mak doc/config.texi"
5898
5899 cat > config.mak <<EOF
5900 # Automatically generated by configure - do not modify!
5901 ifndef FFMPEG_CONFIG_MAK
5902 FFMPEG_CONFIG_MAK=1
5903 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5904 prefix=$prefix
5905 LIBDIR=\$(DESTDIR)$libdir
5906 SHLIBDIR=\$(DESTDIR)$shlibdir
5907 INCDIR=\$(DESTDIR)$incdir
5908 BINDIR=\$(DESTDIR)$bindir
5909 DATADIR=\$(DESTDIR)$datadir
5910 DOCDIR=\$(DESTDIR)$docdir
5911 MANDIR=\$(DESTDIR)$mandir
5912 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
5913 SRC_PATH=$source_path
5914 ifndef MAIN_MAKEFILE
5915 SRC_PATH:=\$(SRC_PATH:.%=..%)
5916 endif
5917 CC_IDENT=$cc_ident
5918 ARCH=$arch
5919 INTRINSICS=$intrinsics
5920 CC=$cc
5921 CXX=$cxx
5922 AS=$as
5923 LD=$ld
5924 DEPCC=$dep_cc
5925 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5926 DEPAS=$as
5927 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5928 YASM=$yasmexe
5929 DEPYASM=$yasmexe
5930 AR=$ar
5931 ARFLAGS=$arflags
5932 AR_O=$ar_o
5933 RANLIB=$ranlib
5934 STRIP=$strip
5935 CP=cp -p
5936 LN_S=$ln_s
5937 CPPFLAGS=$CPPFLAGS
5938 CFLAGS=$CFLAGS
5939 CXXFLAGS=$CXXFLAGS
5940 ASFLAGS=$ASFLAGS
5941 AS_C=$AS_C
5942 AS_O=$AS_O
5943 CC_C=$CC_C
5944 CC_E=$CC_E
5945 CC_O=$CC_O
5946 CXX_C=$CXX_C
5947 CXX_O=$CXX_O
5948 LD_O=$LD_O
5949 LD_LIB=$LD_LIB
5950 LD_PATH=$LD_PATH
5951 DLLTOOL=$dlltool
5952 WINDRES=$windres
5953 DEPWINDRES=$dep_cc
5954 DOXYGEN=$doxygen
5955 LDFLAGS=$LDFLAGS
5956 LDEXEFLAGS=$LDEXEFLAGS
5957 LDLIBFLAGS=$LDLIBFLAGS
5958 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5959 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5960 YASMFLAGS=$YASMFLAGS
5961 BUILDSUF=$build_suffix
5962 PROGSSUF=$progs_suffix
5963 FULLNAME=$FULLNAME
5964 LIBPREF=$LIBPREF
5965 LIBSUF=$LIBSUF
5966 LIBNAME=$LIBNAME
5967 SLIBPREF=$SLIBPREF
5968 SLIBSUF=$SLIBSUF
5969 EXESUF=$EXESUF
5970 EXTRA_VERSION=$extra_version
5971 CCDEP=$CCDEP
5972 CXXDEP=$CXXDEP
5973 CCDEP_FLAGS=$CCDEP_FLAGS
5974 ASDEP=$ASDEP
5975 ASDEP_FLAGS=$ASDEP_FLAGS
5976 CC_DEPFLAGS=$CC_DEPFLAGS
5977 AS_DEPFLAGS=$AS_DEPFLAGS
5978 HOSTCC=$host_cc
5979 HOSTLD=$host_ld
5980 HOSTCFLAGS=$host_cflags
5981 HOSTCPPFLAGS=$host_cppflags
5982 HOSTEXESUF=$HOSTEXESUF
5983 HOSTLDFLAGS=$host_ldflags
5984 HOSTLIBS=$host_libs
5985 DEPHOSTCC=$host_cc
5986 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5987 HOSTCCDEP=$HOSTCCDEP
5988 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5989 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5990 HOSTCC_C=$HOSTCC_C
5991 HOSTCC_O=$HOSTCC_O
5992 HOSTLD_O=$HOSTLD_O
5993 TARGET_EXEC=$target_exec $target_exec_args
5994 TARGET_PATH=$target_path
5995 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5996 CFLAGS-ffplay=$sdl_cflags
5997 ZLIB=$($ldflags_filter -lz)
5998 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5999 EXTRALIBS=$extralibs
6000 COMPAT_OBJS=$compat_objs
6001 EXEOBJS=$exeobjs
6002 INSTALL=$install
6003 LIBTARGET=${LIBTARGET}
6004 SLIBNAME=${SLIBNAME}
6005 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6006 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6007 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6008 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6009 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6010 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6011 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6012 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6013 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6014 NOREDZONE_FLAGS=$noredzone_flags
6015 EOF
6016
6017 get_version(){
6018     lcname=lib${1}
6019     name=$(toupper $lcname)
6020     file=$source_path/$lcname/version.h
6021     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6022     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6023     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6024     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6025     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6026     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6027 }
6028
6029 map 'get_version $v' $LIBRARY_LIST
6030
6031 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6032
6033 print_program_libs(){
6034     eval "program_libs=\$${1}_libs"
6035     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6036 }
6037
6038 map 'print_program_libs $v' $PROGRAM_LIST
6039
6040 cat > $TMPH <<EOF
6041 /* Automatically generated by configure - do not modify! */
6042 #ifndef FFMPEG_CONFIG_H
6043 #define FFMPEG_CONFIG_H
6044 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6045 #define FFMPEG_LICENSE "$(c_escape $license)"
6046 #define CONFIG_THIS_YEAR 2015
6047 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6048 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6049 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6050 #define av_restrict $_restrict
6051 #define EXTERN_PREFIX "${extern_prefix}"
6052 #define EXTERN_ASM ${extern_prefix}
6053 #define BUILDSUF "$build_suffix"
6054 #define SLIBSUF "$SLIBSUF"
6055 #define HAVE_MMX2 HAVE_MMXEXT
6056 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6057 EOF
6058
6059 test -n "$assert_level" &&
6060     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6061
6062 test -n "$malloc_prefix" &&
6063     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6064
6065 if enabled yasm; then
6066     append config_files $TMPASM
6067     printf '' >$TMPASM
6068 fi
6069
6070 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6071
6072
6073 mkdir -p doc
6074 mkdir -p tests
6075 mkdir -p tests/api
6076 echo "@c auto-generated by configure" > doc/config.texi
6077
6078 print_config ARCH_   "$config_files" $ARCH_LIST
6079 print_config HAVE_   "$config_files" $HAVE_LIST
6080 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6081                                      $CONFIG_EXTRA      \
6082                                      $ALL_COMPONENTS    \
6083
6084 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6085 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6086
6087 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6088 cp_if_changed $TMPH config.h
6089 touch .config
6090
6091 enabled yasm && cp_if_changed $TMPASM config.asm
6092
6093 cat > $TMPH <<EOF
6094 /* Generated by ffconf */
6095 #ifndef AVUTIL_AVCONFIG_H
6096 #define AVUTIL_AVCONFIG_H
6097 EOF
6098
6099 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6100
6101 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6102
6103 cp_if_changed $TMPH libavutil/avconfig.h
6104
6105 if test -n "$WARNINGS"; then
6106     printf "\n$WARNINGS"
6107     enabled fatal_warnings && exit 1
6108 fi
6109
6110 # build pkg-config files
6111
6112 lib_version(){
6113     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6114 }
6115
6116 pkgconfig_generate(){
6117     name=$1
6118     shortname=${name#lib}${build_suffix}
6119     comment=$2
6120     version=$3
6121     libs=$4
6122     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6123     requires=${requires%, }
6124     enabled ${name#lib} || return 0
6125     mkdir -p $name
6126     cat <<EOF > $name/$name${build_suffix}.pc
6127 prefix=$prefix
6128 exec_prefix=\${prefix}
6129 libdir=$libdir
6130 includedir=$incdir
6131
6132 Name: $name
6133 Description: $comment
6134 Version: $version
6135 Requires: $(enabled shared || echo $requires)
6136 Requires.private: $(enabled shared && echo $requires)
6137 Conflicts:
6138 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6139 Libs.private: $(enabled shared && echo $libs)
6140 Cflags: -I\${includedir}
6141 EOF
6142
6143 mkdir -p doc/examples/pc-uninstalled
6144 includedir=${source_path}
6145 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6146     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6147 prefix=
6148 exec_prefix=
6149 libdir=\${pcfiledir}/../../../$name
6150 includedir=${includedir}
6151
6152 Name: $name
6153 Description: $comment
6154 Version: $version
6155 Requires: $requires
6156 Conflicts:
6157 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6158 Cflags: -I\${includedir}
6159 EOF
6160 }
6161
6162 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6163 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6164 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6165 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6166 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6167 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6168 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6169 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6170 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"