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-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [autodetect]
 137   --disable-w32threads     disable Win32 threads [autodetect]
 138   --disable-os2threads     disable OS/2 threads [autodetect]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Hardware accelerators:
 152   --disable-d3d11va        disable D3D11VA code [autodetect]
 153   --disable-dxva2          disable DXVA2 code [autodetect]
 154   --disable-vaapi          disable VAAPI code [autodetect]
 155   --disable-vda            disable VDA code [autodetect]
 156   --disable-vdpau          disable VDPAU code [autodetect]
 157   --enable-videotoolbox    enable VideoToolbox 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-chromaprint     enable audio fingerprinting with chromaprint [no]
 200   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
 201   --enable-frei0r          enable frei0r video filtering [no]
 202   --enable-gnutls          enable gnutls, needed for https support
 203                            if openssl is not used [no]
 204   --disable-iconv          disable iconv [autodetect]
 205   --enable-ladspa          enable LADSPA audio filtering [no]
 206   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 207   --enable-libass          enable libass subtitles rendering,
 208                            needed for subtitles and ass filter [no]
 209   --enable-libbluray       enable BluRay reading using libbluray [no]
 210   --enable-libbs2b         enable bs2b DSP library [no]
 211   --enable-libcaca         enable textual display using libcaca [no]
 212   --enable-libcelt         enable CELT decoding via libcelt [no]
 213   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 214   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 215                            and libraw1394 [no]
 216   --enable-libdcadec       enable DCA decoding via libdcadec [no]
 217   --enable-libfaac         enable AAC encoding via libfaac [no]
 218   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 219   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 220   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 221   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 222   --enable-libgme          enable Game Music Emu via libgme [no]
 223   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 224   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 225   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 226   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
 227   --enable-libmfx          enable HW acceleration through libmfx
 228   --enable-libmodplug      enable ModPlug via libmodplug [no]
 229   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 230   --enable-libnut          enable NUT (de)muxing via libnut,
 231                            native (de)muxer exists [no]
 232   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 233   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 234   --enable-libopencv       enable video filtering via libopencv [no]
 235   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 236   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 237   --enable-libopus         enable Opus de/encoding via libopus [no]
 238   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 239   --enable-librubberband   enable rubberband needed for rubberband filter [no]
 240   --enable-libquvi         enable quvi input via libquvi [no]
 241   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 242   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 243   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 244   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 245   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
 246   --enable-libsoxr         enable Include libsoxr resampling [no]
 247   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 248   --enable-libssh          enable SFTP protocol via libssh [no]
 249   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 250   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
 251   --enable-libtheora       enable Theora encoding via libtheora [no]
 252   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 253   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 254   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 255   --enable-libvidstab      enable video stabilization using vid.stab [no]
 256   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 257   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 258   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 259                            native implementation exists [no]
 260   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 261   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 262   --enable-libwebp         enable WebP encoding via libwebp [no]
 263   --enable-libx264         enable H.264 encoding via x264 [no]
 264   --enable-libx265         enable HEVC encoding via x265 [no]
 265   --enable-libxavs         enable AVS encoding via xavs [no]
 266   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 267   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 268   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 269   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 270   --enable-libxvid         enable Xvid encoding via xvidcore,
 271                            native MPEG-4/Xvid encoder exists [no]
 272   --enable-libzimg         enable z.lib, needed for zscale filter [no]
 273   --enable-libzmq          enable message passing via libzmq [no]
 274   --enable-libzvbi         enable teletext support via libzvbi [no]
 275   --disable-lzma           disable lzma [autodetect]
 276   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
 277   --enable-mmal            enable decoding via MMAL [no]
 278   --enable-nvenc           enable NVIDIA NVENC support [no]
 279   --enable-openal          enable OpenAL 1.1 capture support [no]
 280   --enable-opencl          enable OpenCL code
 281   --enable-opengl          enable OpenGL rendering [no]
 282   --enable-openssl         enable openssl, needed for https support
 283                            if gnutls is not used [no]
 284   --disable-schannel       disable SChannel SSP, needed for TLS support on
 285                            Windows if openssl and gnutls are not used [autodetect]
 286   --disable-sdl            disable sdl [autodetect]
 287   --disable-securetransport disable Secure Transport, needed for TLS support
 288                            on OSX if openssl and gnutls are not used [autodetect]
 289   --enable-x11grab         enable X11 grabbing (legacy) [no]
 290   --disable-xlib           disable xlib [autodetect]
 291   --disable-zlib           disable zlib [autodetect]
 292
 293 Toolchain options:
 294   --arch=ARCH              select architecture [$arch]
 295   --cpu=CPU                select the minimum required CPU (affects
 296                            instruction selection, may crash on older CPUs)
 297   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 298   --progs-suffix=SUFFIX    program name suffix []
 299   --enable-cross-compile   assume a cross-compiler is used
 300   --sysroot=PATH           root of cross-build tree
 301   --sysinclude=PATH        location of cross-build system headers
 302   --target-os=OS           compiler targets OS [$target_os]
 303   --target-exec=CMD        command to run executables on target
 304   --target-path=DIR        path to view of build directory on target
 305   --target-samples=DIR     path to samples directory on target
 306   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 307   --toolchain=NAME         set tool defaults according to NAME
 308   --nm=NM                  use nm tool NM [$nm_default]
 309   --ar=AR                  use archive tool AR [$ar_default]
 310   --as=AS                  use assembler AS [$as_default]
 311   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 312   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 313   --cc=CC                  use C compiler CC [$cc_default]
 314   --cxx=CXX                use C compiler CXX [$cxx_default]
 315   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 316   --ld=LD                  use linker LD [$ld_default]
 317   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 318   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 319   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 320   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 321   --host-cc=HOSTCC         use host C compiler HOSTCC
 322   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 323   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 324   --host-ld=HOSTLD         use host linker HOSTLD
 325   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 326   --host-libs=HLIBS        use libs HLIBS when linking for host
 327   --host-os=OS             compiler host OS [$target_os]
 328   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 329   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 330   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 331   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 332   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
 333   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 334   --extra-version=STRING   version string suffix []
 335   --optflags=OPTFLAGS      override optimization-related compiler flags
 336   --build-suffix=SUFFIX    library name suffix []
 337   --enable-pic             build position-independent code
 338   --enable-thumb           compile for Thumb instruction set
 339   --enable-lto             use link-time optimization
 340   --env="ENV=override"     override the environment variables
 341
 342 Advanced options (experts only):
 343   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 344   --custom-allocator=NAME  use a supported custom allocator
 345   --disable-symver         disable symbol versioning
 346   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 347   --disable-safe-bitstream-reader
 348                            disable buffer boundary checking in bitreaders
 349                            (faster, but may crash)
 350   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 351   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 352
 353 Optimization options (experts only):
 354   --disable-asm            disable all assembly optimizations
 355   --disable-altivec        disable AltiVec optimizations
 356   --disable-vsx            disable VSX optimizations
 357   --disable-power8         disable POWER8 optimizations
 358   --disable-amd3dnow       disable 3DNow! optimizations
 359   --disable-amd3dnowext    disable 3DNow! extended optimizations
 360   --disable-mmx            disable MMX optimizations
 361   --disable-mmxext         disable MMXEXT optimizations
 362   --disable-sse            disable SSE optimizations
 363   --disable-sse2           disable SSE2 optimizations
 364   --disable-sse3           disable SSE3 optimizations
 365   --disable-ssse3          disable SSSE3 optimizations
 366   --disable-sse4           disable SSE4 optimizations
 367   --disable-sse42          disable SSE4.2 optimizations
 368   --disable-avx            disable AVX optimizations
 369   --disable-xop            disable XOP optimizations
 370   --disable-fma3           disable FMA3 optimizations
 371   --disable-fma4           disable FMA4 optimizations
 372   --disable-avx2           disable AVX2 optimizations
 373   --disable-aesni          disable AESNI optimizations
 374   --disable-armv5te        disable armv5te optimizations
 375   --disable-armv6          disable armv6 optimizations
 376   --disable-armv6t2        disable armv6t2 optimizations
 377   --disable-vfp            disable VFP optimizations
 378   --disable-neon           disable NEON optimizations
 379   --disable-inline-asm     disable use of inline assembly
 380   --disable-yasm           disable use of nasm/yasm assembly
 381   --disable-mips32r5       disable MIPS32R5 optimizations
 382   --disable-mips64r6       disable MIPS64R6 optimizations
 383   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 384   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 385   --disable-msa            disable MSA optimizations
 386   --disable-mipsfpu        disable floating point MIPS optimizations
 387   --disable-mmi            disable Loongson SIMD optimizations
 388   --disable-fast-unaligned consider unaligned accesses slow
 389
 390 Developer options (useful when working on FFmpeg itself):
 391   --disable-debug          disable debugging symbols
 392   --enable-debug=LEVEL     set the debug level [$debuglevel]
 393   --disable-optimizations  disable compiler optimizations
 394   --enable-extra-warnings  enable more compiler warnings
 395   --disable-stripping      disable stripping of executables and shared libraries
 396   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 397                            2 causes a slowdown at runtime.
 398   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 399   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 400                            leaks and errors, using the specified valgrind binary.
 401                            Cannot be combined with --target-exec
 402   --enable-ftrapv          Trap arithmetic overflows
 403   --samples=PATH           location of test samples for FATE, if not set use
 404                            \$FATE_SAMPLES at make invocation time.
 405   --enable-neon-clobber-test check NEON registers for clobbering (should be
 406                            used only for debugging purposes)
 407   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 408                            should be used only for debugging purposes)
 409   --enable-random          randomly enable/disable components
 410   --disable-random
 411   --enable-random=LIST     randomly enable/disable specific components or
 412   --disable-random=LIST    component groups. LIST is a comma-separated list
 413                            of NAME[:PROB] entries where NAME is a component
 414                            (group) and PROB the probability associated with
 415                            NAME (default 0.5).
 416   --random-seed=VALUE      seed value for --enable/disable-random
 417   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 418                            (only applies to --disable-optimizations builds)
 419
 420 NOTE: Object files are built at the place where configure is launched.
 421 EOF
 422   exit 0
 423 }
 424
 425 quotes='""'
 426 if test -t 1 && which tput >/dev/null 2>&1; then
 427     ncolors=$(tput colors)
 428     if test -n "$ncolors" && test $ncolors -ge 8; then
 429         bold_color=$(tput bold)
 430         warn_color=$(tput setaf 3)
 431         error_color=$(tput setaf 1)
 432         reset_color=$(tput sgr0)
 433     fi
 434     # 72 used instead of 80 since that's the default of pr
 435     ncols=$(tput cols)
 436 fi
 437 : ${ncols:=72}
 438
 439 log(){
 440     echo "$@" >> $logfile
 441 }
 442
 443 log_file(){
 444     log BEGIN $1
 445     pr -n -t $1 >> $logfile
 446     log END $1
 447 }
 448
 449 warn(){
 450     log "WARNING: $*"
 451     WARNINGS="${WARNINGS}WARNING: $*\n"
 452 }
 453
 454 die(){
 455     log "$@"
 456     echo "$error_color$bold_color$@$reset_color"
 457     cat <<EOF
 458
 459 If you think configure made a mistake, make sure you are using the latest
 460 version from Git.  If the latest version fails, report the problem to the
 461 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 462 EOF
 463     if disabled logging; then
 464         cat <<EOF
 465 Rerun configure with logging enabled (do not use --disable-logging), and
 466 include the log this produces with your report.
 467 EOF
 468     else
 469         cat <<EOF
 470 Include the log file "$logfile" produced by configure as this will help
 471 solve the problem.
 472 EOF
 473     fi
 474     exit 1
 475 }
 476
 477 # Avoid locale weirdness, besides we really just want to translate ASCII.
 478 toupper(){
 479     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 480 }
 481
 482 tolower(){
 483     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 484 }
 485
 486 c_escape(){
 487     echo "$*" | sed 's/["\\]/\\\0/g'
 488 }
 489
 490 sh_quote(){
 491     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 492     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 493     echo "$v"
 494 }
 495
 496 cleanws(){
 497     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
 498 }
 499
 500 filter(){
 501     pat=$1
 502     shift
 503     for v; do
 504         eval "case $v in $pat) echo $v ;; esac"
 505     done
 506 }
 507
 508 filter_out(){
 509     pat=$1
 510     shift
 511     for v; do
 512         eval "case $v in $pat) ;; *) echo $v ;; esac"
 513     done
 514 }
 515
 516 map(){
 517     m=$1
 518     shift
 519     for v; do eval $m; done
 520 }
 521
 522 add_suffix(){
 523     suffix=$1
 524     shift
 525     for v; do echo ${v}${suffix}; done
 526 }
 527
 528 set_all(){
 529     value=$1
 530     shift
 531     for var in $*; do
 532         eval $var=$value
 533     done
 534 }
 535
 536 set_weak(){
 537     value=$1
 538     shift
 539     for var; do
 540         eval : \${$var:=$value}
 541     done
 542 }
 543
 544 sanitize_var_name(){
 545     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 546 }
 547
 548 set_safe(){
 549     var=$1
 550     shift
 551     eval $(sanitize_var_name "$var")='$*'
 552 }
 553
 554 get_safe(){
 555     eval echo \$$(sanitize_var_name "$1")
 556 }
 557
 558 pushvar(){
 559     for pvar in $*; do
 560         eval level=\${${pvar}_level:=0}
 561         eval ${pvar}_${level}="\$$pvar"
 562         eval ${pvar}_level=$(($level+1))
 563     done
 564 }
 565
 566 popvar(){
 567     for pvar in $*; do
 568         eval level=\${${pvar}_level:-0}
 569         test $level = 0 && continue
 570         eval level=$(($level-1))
 571         eval $pvar="\${${pvar}_${level}}"
 572         eval ${pvar}_level=$level
 573         eval unset ${pvar}_${level}
 574     done
 575 }
 576
 577 enable(){
 578     set_all yes $*
 579 }
 580
 581 disable(){
 582     set_all no $*
 583 }
 584
 585 enable_weak(){
 586     set_weak yes $*
 587 }
 588
 589 disable_weak(){
 590     set_weak no $*
 591 }
 592
 593 enable_safe(){
 594     for var; do
 595         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 596     done
 597 }
 598
 599 disable_safe(){
 600     for var; do
 601         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 602     done
 603 }
 604
 605 do_enable_deep(){
 606     for var; do
 607         enabled $var && continue
 608         eval sel="\$${var}_select"
 609         eval sgs="\$${var}_suggest"
 610         pushvar var sgs
 611         enable_deep $sel
 612         popvar sgs
 613         enable_deep_weak $sgs
 614         popvar var
 615     done
 616 }
 617
 618 enable_deep(){
 619     do_enable_deep $*
 620     enable $*
 621 }
 622
 623 enable_deep_weak(){
 624     for var; do
 625         disabled $var && continue
 626         pushvar var
 627         do_enable_deep $var
 628         popvar var
 629         enable_weak $var
 630     done
 631 }
 632
 633 enabled(){
 634     test "${1#!}" = "$1" && op='=' || op=!=
 635     eval test "x\$${1#!}" $op "xyes"
 636 }
 637
 638 disabled(){
 639     test "${1#!}" = "$1" && op='=' || op=!=
 640     eval test "x\$${1#!}" $op "xno"
 641 }
 642
 643 enabled_all(){
 644     for opt; do
 645         enabled $opt || return 1
 646     done
 647 }
 648
 649 disabled_all(){
 650     for opt; do
 651         disabled $opt || return 1
 652     done
 653 }
 654
 655 enabled_any(){
 656     for opt; do
 657         enabled $opt && return 0
 658     done
 659 }
 660
 661 disabled_any(){
 662     for opt; do
 663         disabled $opt && return 0
 664     done
 665     return 1
 666 }
 667
 668 set_default(){
 669     for opt; do
 670         eval : \${$opt:=\$${opt}_default}
 671     done
 672 }
 673
 674 is_in(){
 675     value=$1
 676     shift
 677     for var in $*; do
 678         [ $var = $value ] && return 0
 679     done
 680     return 1
 681 }
 682
 683 do_check_deps(){
 684     for cfg; do
 685         cfg="${cfg#!}"
 686         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 687         disabled ${cfg}_checking && continue
 688         enable ${cfg}_checking
 689         append allopts $cfg
 690
 691         eval dep_all="\$${cfg}_deps"
 692         eval dep_any="\$${cfg}_deps_any"
 693         eval dep_sel="\$${cfg}_select"
 694         eval dep_sgs="\$${cfg}_suggest"
 695         eval dep_ifa="\$${cfg}_if"
 696         eval dep_ifn="\$${cfg}_if_any"
 697
 698         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 699         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 700         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 701
 702         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 703         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 704         enabled_all  $dep_all || disable $cfg
 705         enabled_any  $dep_any || disable $cfg
 706         disabled_any $dep_sel && disable $cfg
 707
 708         if enabled $cfg; then
 709             enable_deep $dep_sel
 710             enable_deep_weak $dep_sgs
 711         fi
 712
 713         disable ${cfg}_checking
 714     done
 715 }
 716
 717 check_deps(){
 718     unset allopts
 719
 720     do_check_deps "$@"
 721
 722     for cfg in $allopts; do
 723         enabled $cfg || continue
 724         eval dep_extralibs="\$${cfg}_extralibs"
 725         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 726     done
 727 }
 728
 729 print_config(){
 730     pfx=$1
 731     files=$2
 732     shift 2
 733     map 'eval echo "$v \${$v:-no}"' "$@" |
 734     awk "BEGIN { split(\"$files\", files) }
 735         {
 736             c = \"$pfx\" toupper(\$1);
 737             v = \$2;
 738             sub(/yes/, 1, v);
 739             sub(/no/,  0, v);
 740             for (f in files) {
 741                 file = files[f];
 742                 if (file ~ /\\.h\$/) {
 743                     printf(\"#define %s %d\\n\", c, v) >>file;
 744                 } else if (file ~ /\\.asm\$/) {
 745                     printf(\"%%define %s %d\\n\", c, v) >>file;
 746                 } else if (file ~ /\\.mak\$/) {
 747                     n = -v ? \"\" : \"!\";
 748                     printf(\"%s%s=yes\\n\", n, c) >>file;
 749                 } else if (file ~ /\\.texi\$/) {
 750                     pre = -v ? \"\" : \"@c \";
 751                     yesno = \$2;
 752                     c2 = tolower(c);
 753                     gsub(/_/, \"-\", c2);
 754                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 755                 }
 756             }
 757         }"
 758 }
 759
 760 print_enabled(){
 761     suf=$1
 762     shift
 763     for v; do
 764         enabled $v && printf "%s\n" ${v%$suf};
 765     done
 766 }
 767
 768 append(){
 769     var=$1
 770     shift
 771     eval "$var=\"\$$var $*\""
 772 }
 773
 774 prepend(){
 775     var=$1
 776     shift
 777     eval "$var=\"$* \$$var\""
 778 }
 779
 780 unique(){
 781     var=$1
 782     uniq_list=""
 783     for tok in $(eval echo \$$var); do
 784         uniq_list="$(filter_out $tok $uniq_list) $tok"
 785     done
 786     eval "$var=\"${uniq_list}\""
 787 }
 788
 789 add_cppflags(){
 790     append CPPFLAGS "$@"
 791 }
 792
 793 add_cflags(){
 794     append CFLAGS $($cflags_filter "$@")
 795 }
 796
 797 add_cxxflags(){
 798     append CXXFLAGS $($cflags_filter "$@")
 799 }
 800
 801 add_asflags(){
 802     append ASFLAGS $($asflags_filter "$@")
 803 }
 804
 805 add_ldflags(){
 806     append LDFLAGS $($ldflags_filter "$@")
 807 }
 808
 809 add_ldexeflags(){
 810     append LDEXEFLAGS $($ldflags_filter "$@")
 811 }
 812
 813 add_ldlibflags(){
 814     append LDLIBFLAGS $($ldflags_filter "$@")
 815 }
 816
 817 add_stripflags(){
 818     append ASMSTRIPFLAGS "$@"
 819 }
 820
 821 add_extralibs(){
 822     prepend extralibs $($ldflags_filter "$@")
 823 }
 824
 825 add_host_cppflags(){
 826     append host_cppflags "$@"
 827 }
 828
 829 add_host_cflags(){
 830     append host_cflags $($host_cflags_filter "$@")
 831 }
 832
 833 add_host_ldflags(){
 834     append host_ldflags $($host_ldflags_filter "$@")
 835 }
 836
 837 add_compat(){
 838     append compat_objs $1
 839     shift
 840     map 'add_cppflags -D$v' "$@"
 841 }
 842
 843 check_cmd(){
 844     log "$@"
 845     "$@" >> $logfile 2>&1
 846 }
 847
 848 check_stat(){
 849     log check_stat "$@"
 850     stat "$1" >> $logfile 2>&1
 851 }
 852
 853 cc_o(){
 854     eval printf '%s\\n' $CC_O
 855 }
 856
 857 cc_e(){
 858     eval printf '%s\\n' $CC_E
 859 }
 860
 861 check_cc(){
 862     log check_cc "$@"
 863     cat > $TMPC
 864     log_file $TMPC
 865     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 866 }
 867
 868 check_cxx(){
 869     log check_cxx "$@"
 870     cat > $TMPCPP
 871     log_file $TMPCPP
 872     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 873 }
 874
 875 check_oc(){
 876     log check_oc "$@"
 877     cat > $TMPM
 878     log_file $TMPM
 879     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 880 }
 881
 882 check_cpp(){
 883     log check_cpp "$@"
 884     cat > $TMPC
 885     log_file $TMPC
 886     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 887 }
 888
 889 as_o(){
 890     eval printf '%s\\n' $AS_O
 891 }
 892
 893 check_as(){
 894     log check_as "$@"
 895     cat > $TMPS
 896     log_file $TMPS
 897     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 898 }
 899
 900 check_inline_asm(){
 901     log check_inline_asm "$@"
 902     name="$1"
 903     code="$2"
 904     shift 2
 905     disable $name
 906     check_cc "$@" <<EOF && enable $name
 907 void foo(void){ __asm__ volatile($code); }
 908 EOF
 909 }
 910
 911 check_insn(){
 912     log check_insn "$@"
 913     check_inline_asm ${1}_inline "\"$2\""
 914     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 915 }
 916
 917 check_yasm(){
 918     log check_yasm "$@"
 919     echo "$1" > $TMPS
 920     log_file $TMPS
 921     shift 1
 922     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 923 }
 924
 925 ld_o(){
 926     eval printf '%s\\n' $LD_O
 927 }
 928
 929 check_ld(){
 930     log check_ld "$@"
 931     type=$1
 932     shift 1
 933     flags=$(filter_out '-l*|*.so' $@)
 934     libs=$(filter '-l*|*.so' $@)
 935     check_$type $($cflags_filter $flags) || return
 936     flags=$($ldflags_filter $flags)
 937     libs=$($ldflags_filter $libs)
 938     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 939 }
 940
 941 print_include(){
 942     hdr=$1
 943     test "${hdr%.h}" = "${hdr}" &&
 944         echo "#include $hdr"    ||
 945         echo "#include <$hdr>"
 946 }
 947
 948 check_code(){
 949     log check_code "$@"
 950     check=$1
 951     headers=$2
 952     code=$3
 953     shift 3
 954     {
 955         for hdr in $headers; do
 956             print_include $hdr
 957         done
 958         echo "int main(void) { $code; return 0; }"
 959     } | check_$check "$@"
 960 }
 961
 962 check_cppflags(){
 963     log check_cppflags "$@"
 964     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 965 int x;
 966 EOF
 967 }
 968
 969 test_cflags(){
 970     log test_cflags "$@"
 971     set -- $($cflags_filter "$@")
 972     check_cc "$@" <<EOF
 973 int x;
 974 EOF
 975 }
 976
 977 check_cflags(){
 978     log check_cflags "$@"
 979     test_cflags "$@" && add_cflags "$@"
 980 }
 981
 982 check_cxxflags(){
 983     log check_cxxflags "$@"
 984     set -- $($cflags_filter "$@")
 985     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 986 int x;
 987 EOF
 988 }
 989
 990 test_ldflags(){
 991     log test_ldflags "$@"
 992     check_ld "cc" "$@" <<EOF
 993 int main(void){ return 0; }
 994 EOF
 995 }
 996
 997 check_ldflags(){
 998     log check_ldflags "$@"
 999     test_ldflags "$@" && add_ldflags "$@"
1000 }
1001
1002 test_stripflags(){
1003     log test_stripflags "$@"
1004     # call check_cc to get a fresh TMPO
1005     check_cc <<EOF
1006 int main(void) { return 0; }
1007 EOF
1008     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1009 }
1010
1011 check_stripflags(){
1012     log check_stripflags "$@"
1013     test_stripflags "$@" && add_stripflags "$@"
1014 }
1015
1016 check_header(){
1017     log check_header "$@"
1018     header=$1
1019     shift
1020     disable_safe $header
1021     check_cpp "$@" <<EOF && enable_safe $header
1022 #include <$header>
1023 int x;
1024 EOF
1025 }
1026
1027 check_header_oc(){
1028     log check_header_oc "$@"
1029     rm -f -- "$TMPO"
1030     header=$1
1031     shift
1032     disable_safe $header
1033     {
1034        echo "#include <$header>"
1035        echo "int main(void) { return 0; }"
1036     } | check_oc && check_stat "$TMPO" && enable_safe $headers
1037 }
1038
1039 check_func(){
1040     log check_func "$@"
1041     func=$1
1042     shift
1043     disable $func
1044     check_ld "cc" "$@" <<EOF && enable $func
1045 extern int $func();
1046 int main(void){ $func(); }
1047 EOF
1048 }
1049
1050 check_mathfunc(){
1051     log check_mathfunc "$@"
1052     func=$1
1053     narg=$2
1054     shift 2
1055     test $narg = 2 && args="f, g" || args="f"
1056     disable $func
1057     check_ld "cc" "$@" <<EOF && enable $func
1058 #include <math.h>
1059 float foo(float f, float g) { return $func($args); }
1060 int main(void){ return (int) foo; }
1061 EOF
1062 }
1063
1064 check_func_headers(){
1065     log check_func_headers "$@"
1066     headers=$1
1067     funcs=$2
1068     shift 2
1069     {
1070         for hdr in $headers; do
1071             print_include $hdr
1072         done
1073         for func in $funcs; do
1074             echo "long check_$func(void) { return (long) $func; }"
1075         done
1076         echo "int main(void) { return 0; }"
1077     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1078 }
1079
1080 check_class_headers_cpp(){
1081     log check_class_headers_cpp "$@"
1082     headers=$1
1083     classes=$2
1084     shift 2
1085     {
1086         for hdr in $headers; do
1087             echo "#include <$hdr>"
1088         done
1089         echo "int main(void) { "
1090         i=1
1091         for class in $classes; do
1092             echo "$class obj$i;"
1093             i=$(expr $i + 1)
1094         done
1095         echo "return 0; }"
1096     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1097 }
1098
1099 check_cpp_condition(){
1100     log check_cpp_condition "$@"
1101     header=$1
1102     condition=$2
1103     shift 2
1104     check_cpp "$@" <<EOF
1105 #include <$header>
1106 #if !($condition)
1107 #error "unsatisfied condition: $condition"
1108 #endif
1109 EOF
1110 }
1111
1112 check_lib(){
1113     log check_lib "$@"
1114     header="$1"
1115     func="$2"
1116     shift 2
1117     check_header $header && check_func $func "$@" && add_extralibs "$@"
1118 }
1119
1120 check_lib2(){
1121     log check_lib2 "$@"
1122     headers="$1"
1123     funcs="$2"
1124     shift 2
1125     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1126 }
1127
1128 check_lib_cpp(){
1129     log check_lib_cpp "$@"
1130     headers="$1"
1131     classes="$2"
1132     shift 2
1133     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1134 }
1135
1136 check_pkg_config(){
1137     log check_pkg_config "$@"
1138     pkgandversion="$1"
1139     pkg="${1%% *}"
1140     headers="$2"
1141     funcs="$3"
1142     shift 3
1143     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1144     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1145     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1146     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1147         set_safe "${pkg}_cflags" $pkg_cflags   &&
1148         set_safe "${pkg}_libs"   $pkg_libs
1149 }
1150
1151 check_exec(){
1152     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1153 }
1154
1155 check_exec_crash(){
1156     code=$(cat)
1157
1158     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1159     # are safe but may not be available everywhere.  Thus we use
1160     # raise(SIGTERM) instead.  The check is run in a subshell so we
1161     # can redirect the "Terminated" message from the shell.  SIGBUS
1162     # is not defined by standard C so it is used conditionally.
1163
1164     (check_exec "$@") >> $logfile 2>&1 <<EOF
1165 #include <signal.h>
1166 static void sighandler(int sig){
1167     raise(SIGTERM);
1168 }
1169 int foo(void){
1170     $code
1171 }
1172 int (*func_ptr)(void) = foo;
1173 int main(void){
1174     signal(SIGILL, sighandler);
1175     signal(SIGFPE, sighandler);
1176     signal(SIGSEGV, sighandler);
1177 #ifdef SIGBUS
1178     signal(SIGBUS, sighandler);
1179 #endif
1180     return func_ptr();
1181 }
1182 EOF
1183 }
1184
1185 check_type(){
1186     log check_type "$@"
1187     headers=$1
1188     type=$2
1189     shift 2
1190     disable_safe "$type"
1191     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1192 }
1193
1194 check_struct(){
1195     log check_struct "$@"
1196     headers=$1
1197     struct=$2
1198     member=$3
1199     shift 3
1200     disable_safe "${struct}_${member}"
1201     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1202         enable_safe "${struct}_${member}"
1203 }
1204
1205 check_builtin(){
1206     log check_builtin "$@"
1207     name=$1
1208     headers=$2
1209     builtin=$3
1210     shift 3
1211     disable "$name"
1212     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1213 }
1214
1215 check_compile_assert(){
1216     log check_compile_assert "$@"
1217     name=$1
1218     headers=$2
1219     condition=$3
1220     shift 3
1221     disable "$name"
1222     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1223 }
1224
1225 require(){
1226     name="$1"
1227     header="$2"
1228     func="$3"
1229     shift 3
1230     check_lib $header $func "$@" || die "ERROR: $name not found"
1231 }
1232
1233 require2(){
1234     name="$1"
1235     headers="$2"
1236     func="$3"
1237     shift 3
1238     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1239 }
1240
1241 require_cpp(){
1242     name="$1"
1243     headers="$2"
1244     classes="$3"
1245     shift 3
1246     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1247 }
1248
1249 use_pkg_config(){
1250     pkg="$1"
1251     check_pkg_config "$@" || return 1
1252     add_cflags    $(get_safe "${pkg}_cflags")
1253     add_extralibs $(get_safe "${pkg}_libs")
1254 }
1255
1256 require_pkg_config(){
1257     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1258 }
1259
1260 require_libfreetype(){
1261     log require_libfreetype "$@"
1262     pkg="freetype2"
1263     check_cmd $pkg_config --exists --print-errors $pkg \
1264       || die "ERROR: $pkg not found"
1265     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1266     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1267     {
1268         echo "#include <ft2build.h>"
1269         echo "#include FT_FREETYPE_H"
1270         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1271         echo "int main(void) { return 0; }"
1272     } | check_ld "cc" $pkg_cflags $pkg_libs \
1273       && set_safe "${pkg}_cflags" $pkg_cflags \
1274       && set_safe "${pkg}_libs"   $pkg_libs \
1275       || die "ERROR: $pkg not found"
1276     add_cflags    $(get_safe "${pkg}_cflags")
1277     add_extralibs $(get_safe "${pkg}_libs")
1278 }
1279
1280 hostcc_e(){
1281     eval printf '%s\\n' $HOSTCC_E
1282 }
1283
1284 hostcc_o(){
1285     eval printf '%s\\n' $HOSTCC_O
1286 }
1287
1288 check_host_cc(){
1289     log check_host_cc "$@"
1290     cat > $TMPC
1291     log_file $TMPC
1292     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1293 }
1294
1295 check_host_cpp(){
1296     log check_host_cpp "$@"
1297     cat > $TMPC
1298     log_file $TMPC
1299     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1300 }
1301
1302 check_host_cppflags(){
1303     log check_host_cppflags "$@"
1304     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1305 int x;
1306 EOF
1307 }
1308
1309 check_host_cflags(){
1310     log check_host_cflags "$@"
1311     set -- $($host_cflags_filter "$@")
1312     check_host_cc "$@" <<EOF && append host_cflags "$@"
1313 int x;
1314 EOF
1315 }
1316
1317 check_host_cpp_condition(){
1318     log check_host_cpp_condition "$@"
1319     header=$1
1320     condition=$2
1321     shift 2
1322     check_host_cpp "$@" <<EOF
1323 #include <$header>
1324 #if !($condition)
1325 #error "unsatisfied condition: $condition"
1326 #endif
1327 EOF
1328 }
1329
1330 cp_if_changed(){
1331     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1332     mkdir -p "$(dirname $2)"
1333     $cp_f "$1" "$2"
1334 }
1335
1336 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1337 # system-dependent things.
1338
1339 AVCODEC_COMPONENTS="
1340     bsfs
1341     decoders
1342     encoders
1343     hwaccels
1344     parsers
1345 "
1346
1347 AVDEVICE_COMPONENTS="
1348     indevs
1349     outdevs
1350 "
1351 AVFILTER_COMPONENTS="
1352     filters
1353 "
1354 AVFORMAT_COMPONENTS="
1355     demuxers
1356     muxers
1357     protocols
1358 "
1359
1360 AVRESAMPLE_COMPONENTS=""
1361 AVUTIL_COMPONENTS=""
1362
1363 COMPONENT_LIST="
1364     $AVCODEC_COMPONENTS
1365     $AVDEVICE_COMPONENTS
1366     $AVFILTER_COMPONENTS
1367     $AVFORMAT_COMPONENTS
1368     $AVRESAMPLE_COMPONENTS
1369     $AVUTIL_COMPONENTS
1370 "
1371
1372 EXAMPLE_LIST="
1373     avio_reading_example
1374     avio_dir_cmd_example
1375     decoding_encoding_example
1376     demuxing_decoding_example
1377     extract_mvs_example
1378     filter_audio_example
1379     filtering_audio_example
1380     filtering_video_example
1381     metadata_example
1382     muxing_example
1383     qsvdec_example
1384     remuxing_example
1385     resampling_audio_example
1386     scaling_video_example
1387     transcode_aac_example
1388     transcoding_example
1389 "
1390
1391 EXTERNAL_LIBRARY_LIST="
1392     avisynth
1393     bzlib
1394     chromaprint
1395     crystalhd
1396     decklink
1397     frei0r
1398     gnutls
1399     iconv
1400     ladspa
1401     libaacplus
1402     libass
1403     libbluray
1404     libbs2b
1405     libcaca
1406     libcdio
1407     libcelt
1408     libdc1394
1409     libdcadec
1410     libfaac
1411     libfdk_aac
1412     libflite
1413     libfontconfig
1414     libfreetype
1415     libfribidi
1416     libgme
1417     libgsm
1418     libiec61883
1419     libilbc
1420     libkvazaar
1421     libmfx
1422     libmodplug
1423     libmp3lame
1424     libnut
1425     libopencore_amrnb
1426     libopencore_amrwb
1427     libopencv
1428     libopenh264
1429     libopenjpeg
1430     libopus
1431     libpulse
1432     libquvi
1433     librtmp
1434     librubberband
1435     libschroedinger
1436     libshine
1437     libsmbclient
1438     libsnappy
1439     libsoxr
1440     libspeex
1441     libssh
1442     libstagefright_h264
1443     libtesseract
1444     libtheora
1445     libtwolame
1446     libutvideo
1447     libv4l2
1448     libvidstab
1449     libvo_aacenc
1450     libvo_amrwbenc
1451     libvorbis
1452     libvpx
1453     libwavpack
1454     libwebp
1455     libx264
1456     libx265
1457     libxavs
1458     libxcb
1459     libxcb_shm
1460     libxcb_shape
1461     libxcb_xfixes
1462     libxvid
1463     libzimg
1464     libzmq
1465     libzvbi
1466     lzma
1467     mmal
1468     nvenc
1469     openal
1470     opencl
1471     opengl
1472     openssl
1473     schannel
1474     sdl
1475     securetransport
1476     x11grab
1477     xlib
1478     zlib
1479 "
1480
1481 DOCUMENT_LIST="
1482     doc
1483     htmlpages
1484     manpages
1485     podpages
1486     txtpages
1487 "
1488
1489 FEATURE_LIST="
1490     ftrapv
1491     gray
1492     hardcoded_tables
1493     runtime_cpudetect
1494     safe_bitstream_reader
1495     shared
1496     small
1497     static
1498     swscale_alpha
1499 "
1500
1501 HWACCEL_LIST="
1502     d3d11va
1503     dxva2
1504     vaapi
1505     vda
1506     vdpau
1507     videotoolbox
1508     xvmc
1509 "
1510
1511 LIBRARY_LIST="
1512     avcodec
1513     avdevice
1514     avfilter
1515     avformat
1516     avresample
1517     avutil
1518     postproc
1519     swresample
1520     swscale
1521 "
1522
1523 LICENSE_LIST="
1524     gpl
1525     nonfree
1526     version3
1527 "
1528
1529 PROGRAM_LIST="
1530     ffplay
1531     ffprobe
1532     ffserver
1533     ffmpeg
1534 "
1535
1536 SUBSYSTEM_LIST="
1537     dct
1538     dwt
1539     error_resilience
1540     faan
1541     fast_unaligned
1542     fft
1543     lsp
1544     lzo
1545     mdct
1546     pixelutils
1547     network
1548     rdft
1549 "
1550
1551 CONFIG_LIST="
1552     $COMPONENT_LIST
1553     $DOCUMENT_LIST
1554     $EXAMPLE_LIST
1555     $EXTERNAL_LIBRARY_LIST
1556     $FEATURE_LIST
1557     $HWACCEL_LIST
1558     $LICENSE_LIST
1559     $LIBRARY_LIST
1560     $PROGRAM_LIST
1561     $SUBSYSTEM_LIST
1562     fontconfig
1563     incompatible_libav_abi
1564     memalign_hack
1565     memory_poisoning
1566     neon_clobber_test
1567     pic
1568     pod2man
1569     raise_major
1570     thumb
1571     valgrind_backtrace
1572     xmm_clobber_test
1573 "
1574
1575 THREADS_LIST="
1576     pthreads
1577     os2threads
1578     w32threads
1579 "
1580
1581 ATOMICS_LIST="
1582     atomics_gcc
1583     atomics_suncc
1584     atomics_win32
1585 "
1586
1587 ARCH_LIST="
1588     aarch64
1589     alpha
1590     arm
1591     avr32
1592     avr32_ap
1593     avr32_uc
1594     bfin
1595     ia64
1596     m68k
1597     mips
1598     mips64
1599     parisc
1600     ppc
1601     ppc64
1602     s390
1603     sh4
1604     sparc
1605     sparc64
1606     tilegx
1607     tilepro
1608     tomi
1609     x86
1610     x86_32
1611     x86_64
1612 "
1613
1614 ARCH_EXT_LIST_ARM="
1615     armv5te
1616     armv6
1617     armv6t2
1618     armv8
1619     neon
1620     vfp
1621     vfpv3
1622     setend
1623 "
1624
1625 ARCH_EXT_LIST_MIPS="
1626     mipsfpu
1627     mips32r2
1628     mips32r5
1629     mips64r6
1630     mipsdspr1
1631     mipsdspr2
1632     msa
1633 "
1634
1635 ARCH_EXT_LIST_LOONGSON="
1636     loongson2
1637     loongson3
1638     mmi
1639 "
1640
1641 ARCH_EXT_LIST_X86_SIMD="
1642     aesni
1643     amd3dnow
1644     amd3dnowext
1645     avx
1646     avx2
1647     fma3
1648     fma4
1649     mmx
1650     mmxext
1651     sse
1652     sse2
1653     sse3
1654     sse4
1655     sse42
1656     ssse3
1657     xop
1658 "
1659
1660 ARCH_EXT_LIST_PPC="
1661     altivec
1662     dcbzl
1663     ldbrx
1664     power8
1665     ppc4xx
1666     vsx
1667 "
1668
1669 ARCH_EXT_LIST_X86="
1670     $ARCH_EXT_LIST_X86_SIMD
1671     cpunop
1672     i686
1673 "
1674
1675 ARCH_EXT_LIST="
1676     $ARCH_EXT_LIST_ARM
1677     $ARCH_EXT_LIST_PPC
1678     $ARCH_EXT_LIST_X86
1679     $ARCH_EXT_LIST_MIPS
1680     $ARCH_EXT_LIST_LOONGSON
1681 "
1682
1683 ARCH_FEATURES="
1684     aligned_stack
1685     fast_64bit
1686     fast_clz
1687     fast_cmov
1688     local_aligned_8
1689     local_aligned_16
1690     local_aligned_32
1691     simd_align_16
1692 "
1693
1694 BUILTIN_LIST="
1695     atomic_cas_ptr
1696     atomic_compare_exchange
1697     machine_rw_barrier
1698     MemoryBarrier
1699     mm_empty
1700     rdtsc
1701     sarestart
1702     sync_val_compare_and_swap
1703 "
1704 HAVE_LIST_CMDLINE="
1705     inline_asm
1706     symver
1707     yasm
1708 "
1709
1710 HAVE_LIST_PUB="
1711     bigendian
1712     fast_unaligned
1713     incompatible_libav_abi
1714 "
1715
1716 HEADERS_LIST="
1717     alsa_asoundlib_h
1718     altivec_h
1719     arpa_inet_h
1720     asm_types_h
1721     cdio_paranoia_h
1722     cdio_paranoia_paranoia_h
1723     dev_bktr_ioctl_bt848_h
1724     dev_bktr_ioctl_meteor_h
1725     dev_ic_bt8xx_h
1726     dev_video_bktr_ioctl_bt848_h
1727     dev_video_meteor_ioctl_meteor_h
1728     direct_h
1729     dirent_h
1730     dlfcn_h
1731     d3d11_h
1732     dxva_h
1733     ES2_gl_h
1734     gsm_h
1735     io_h
1736     mach_mach_time_h
1737     machine_ioctl_bt848_h
1738     machine_ioctl_meteor_h
1739     malloc_h
1740     openjpeg_1_5_openjpeg_h
1741     OpenGL_gl3_h
1742     poll_h
1743     sndio_h
1744     soundcard_h
1745     sys_mman_h
1746     sys_param_h
1747     sys_resource_h
1748     sys_select_h
1749     sys_soundcard_h
1750     sys_time_h
1751     sys_un_h
1752     sys_videoio_h
1753     termios_h
1754     udplite_h
1755     unistd_h
1756     valgrind_valgrind_h
1757     windows_h
1758     winsock2_h
1759 "
1760
1761 INTRINSICS_LIST="
1762     intrinsics_neon
1763 "
1764
1765 MATH_FUNCS="
1766     atanf
1767     atan2f
1768     cbrt
1769     cbrtf
1770     copysign
1771     cosf
1772     erf
1773     exp2
1774     exp2f
1775     expf
1776     hypot
1777     isinf
1778     isnan
1779     ldexpf
1780     llrint
1781     llrintf
1782     log2
1783     log2f
1784     log10f
1785     lrint
1786     lrintf
1787     powf
1788     rint
1789     round
1790     roundf
1791     sinf
1792     trunc
1793     truncf
1794 "
1795
1796 SYSTEM_FUNCS="
1797     access
1798     aligned_malloc
1799     clock_gettime
1800     closesocket
1801     CommandLineToArgvW
1802     CoTaskMemFree
1803     CryptGenRandom
1804     dlopen
1805     fcntl
1806     flt_lim
1807     fork
1808     getaddrinfo
1809     gethrtime
1810     getopt
1811     GetProcessAffinityMask
1812     GetProcessMemoryInfo
1813     GetProcessTimes
1814     getrusage
1815     GetSystemTimeAsFileTime
1816     gettimeofday
1817     glob
1818     glXGetProcAddress
1819     gmtime_r
1820     inet_aton
1821     isatty
1822     jack_port_get_latency_range
1823     kbhit
1824     localtime_r
1825     lstat
1826     lzo1x_999_compress
1827     mach_absolute_time
1828     MapViewOfFile
1829     memalign
1830     mkstemp
1831     mmap
1832     mprotect
1833     nanosleep
1834     PeekNamedPipe
1835     posix_memalign
1836     pthread_cancel
1837     sched_getaffinity
1838     SetConsoleTextAttribute
1839     SetConsoleCtrlHandler
1840     setmode
1841     setrlimit
1842     Sleep
1843     strerror_r
1844     sysconf
1845     sysctl
1846     usleep
1847     UTGetOSTypeFromString
1848     VirtualAlloc
1849     wglGetProcAddress
1850 "
1851
1852 TOOLCHAIN_FEATURES="
1853     as_dn_directive
1854     as_func
1855     as_object_arch
1856     asm_mod_q
1857     attribute_may_alias
1858     attribute_packed
1859     ebp_available
1860     ebx_available
1861     gnu_as
1862     gnu_windres
1863     ibm_asm
1864     inline_asm_labels
1865     inline_asm_nonlocal_labels
1866     inline_asm_direct_symbol_refs
1867     pragma_deprecated
1868     rsync_contimeout
1869     symver_asm_label
1870     symver_gnu_asm
1871     vfp_args
1872     xform_asm
1873     xmm_clobbers
1874 "
1875
1876 TYPES_LIST="
1877     CONDITION_VARIABLE_Ptr
1878     socklen_t
1879     struct_addrinfo
1880     struct_dcadec_exss_info_matrix_encoding
1881     struct_group_source_req
1882     struct_ip_mreq_source
1883     struct_ipv6_mreq
1884     struct_pollfd
1885     struct_rusage_ru_maxrss
1886     struct_sctp_event_subscribe
1887     struct_sockaddr_in6
1888     struct_sockaddr_sa_len
1889     struct_sockaddr_storage
1890     struct_stat_st_mtim_tv_nsec
1891     struct_v4l2_frmivalenum_discrete
1892 "
1893
1894 HAVE_LIST="
1895     $ARCH_EXT_LIST
1896     $(add_suffix _external $ARCH_EXT_LIST)
1897     $(add_suffix _inline   $ARCH_EXT_LIST)
1898     $ARCH_FEATURES
1899     $ATOMICS_LIST
1900     $BUILTIN_LIST
1901     $HAVE_LIST_CMDLINE
1902     $HAVE_LIST_PUB
1903     $HEADERS_LIST
1904     $INTRINSICS_LIST
1905     $MATH_FUNCS
1906     $SYSTEM_FUNCS
1907     $THREADS_LIST
1908     $TOOLCHAIN_FEATURES
1909     $TYPES_LIST
1910     atomics_native
1911     dos_paths
1912     dxva2api_cobj
1913     dxva2_lib
1914     winrt
1915     libc_msvcrt
1916     libdc1394_1
1917     libdc1394_2
1918     makeinfo
1919     makeinfo_html
1920     perl
1921     pod2man
1922     sdl
1923     section_data_rel_ro
1924     texi2html
1925     threads
1926     vaapi_x11
1927     vdpau_x11
1928     xlib
1929 "
1930
1931 # options emitted with CONFIG_ prefix but not available on the command line
1932 CONFIG_EXTRA="
1933     aandcttables
1934     ac3dsp
1935     audio_frame_queue
1936     audiodsp
1937     blockdsp
1938     bswapdsp
1939     cabac
1940     dvprofile
1941     exif
1942     faandct
1943     faanidct
1944     fdctdsp
1945     flacdsp
1946     fmtconvert
1947     frame_thread_encoder
1948     g722dsp
1949     gcrypt
1950     gmp
1951     golomb
1952     gplv3
1953     h263dsp
1954     h264chroma
1955     h264dsp
1956     h264pred
1957     h264qpel
1958     hpeldsp
1959     huffman
1960     huffyuvdsp
1961     huffyuvencdsp
1962     idctdsp
1963     iirfilter
1964     imdct15
1965     intrax8
1966     ividsp
1967     jpegtables
1968     libx262
1969     lgplv3
1970     llauddsp
1971     llviddsp
1972     lpc
1973     lzf
1974     me_cmp
1975     mpeg_er
1976     mpegaudio
1977     mpegaudiodsp
1978     mpegvideo
1979     mpegvideoenc
1980     mss34dsp
1981     pixblockdsp
1982     qpeldsp
1983     qsv
1984     qsvdec
1985     qsvenc
1986     rangecoder
1987     riffdec
1988     riffenc
1989     rtpdec
1990     rtpenc_chain
1991     rv34dsp
1992     sinewin
1993     snappy
1994     startcode
1995     texturedsp
1996     texturedspenc
1997     tpeldsp
1998     videodsp
1999     vp3dsp
2000     vp56dsp
2001     vp8dsp
2002     wma_freqs
2003     wmv2dsp
2004 "
2005
2006 CMDLINE_SELECT="
2007     $ARCH_EXT_LIST
2008     $CONFIG_LIST
2009     $HAVE_LIST_CMDLINE
2010     $THREADS_LIST
2011     asm
2012     cross_compile
2013     debug
2014     extra_warnings
2015     logging
2016     lto
2017     optimizations
2018     rpath
2019     stripping
2020 "
2021
2022 PATHS_LIST="
2023     bindir
2024     datadir
2025     docdir
2026     incdir
2027     libdir
2028     mandir
2029     pkgconfigdir
2030     prefix
2031     shlibdir
2032 "
2033
2034 CMDLINE_SET="
2035     $PATHS_LIST
2036     ar
2037     arch
2038     as
2039     assert_level
2040     build_suffix
2041     cc
2042     cpu
2043     cross_prefix
2044     custom_allocator
2045     cxx
2046     dep_cc
2047     doxygen
2048     env
2049     extra_version
2050     gas
2051     host_cc
2052     host_cflags
2053     host_ld
2054     host_ldflags
2055     host_libs
2056     host_os
2057     install
2058     ld
2059     logfile
2060     malloc_prefix
2061     nm
2062     optflags
2063     pkg_config
2064     pkg_config_flags
2065     progs_suffix
2066     random_seed
2067     ranlib
2068     samples
2069     strip
2070     sws_max_filter_size
2071     sysinclude
2072     sysroot
2073     target_exec
2074     target_os
2075     target_path
2076     target_samples
2077     tempprefix
2078     toolchain
2079     valgrind
2080     yasmexe
2081 "
2082
2083 CMDLINE_APPEND="
2084     extra_cflags
2085     extra_cxxflags
2086     host_cppflags
2087 "
2088
2089 # code dependency declarations
2090
2091 # architecture extensions
2092
2093 armv5te_deps="arm"
2094 armv6_deps="arm"
2095 armv6t2_deps="arm"
2096 armv8_deps="aarch64"
2097 neon_deps_any="aarch64 arm"
2098 intrinsics_neon_deps="neon"
2099 vfp_deps_any="aarch64 arm"
2100 vfpv3_deps="vfp"
2101 setend_deps="arm"
2102
2103 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2104
2105 mipsfpu_deps="mips"
2106 mipsdspr1_deps="mips"
2107 mipsdspr2_deps="mips"
2108 mips32r2_deps="mips"
2109 mips32r5_deps="mips"
2110 mips64r6_deps="mips"
2111 msa_deps="mips"
2112 mmi_deps="mips"
2113
2114 altivec_deps="ppc"
2115 dcbzl_deps="ppc"
2116 ldbrx_deps="ppc"
2117 ppc4xx_deps="ppc"
2118 vsx_deps="altivec"
2119 power8_deps="vsx"
2120
2121 cpunop_deps="i686"
2122 x86_64_select="i686"
2123 x86_64_suggest="fast_cmov"
2124
2125 amd3dnow_deps="mmx"
2126 amd3dnowext_deps="amd3dnow"
2127 i686_deps="x86"
2128 mmx_deps="x86"
2129 mmxext_deps="mmx"
2130 sse_deps="mmxext"
2131 sse2_deps="sse"
2132 sse3_deps="sse2"
2133 ssse3_deps="sse3"
2134 sse4_deps="ssse3"
2135 sse42_deps="sse4"
2136 aesni_deps="sse42"
2137 avx_deps="sse42"
2138 xop_deps="avx"
2139 fma3_deps="avx"
2140 fma4_deps="avx"
2141 avx2_deps="avx"
2142
2143 mmx_external_deps="yasm"
2144 mmx_inline_deps="inline_asm"
2145 mmx_suggest="mmx_external mmx_inline"
2146
2147 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2148     eval dep=\$${ext}_deps
2149     eval ${ext}_external_deps='"${dep}_external"'
2150     eval ${ext}_inline_deps='"${dep}_inline"'
2151     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2152 done
2153
2154 aligned_stack_if_any="aarch64 ppc x86"
2155 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2156 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2157 fast_unaligned_if_any="aarch64 ppc x86"
2158 simd_align_16_if_any="altivec neon sse"
2159
2160 # system capabilities
2161 symver_if_any="symver_asm_label symver_gnu_asm"
2162 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2163
2164 # threading support
2165 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2166 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2167 atomics_win32_if="MemoryBarrier"
2168 atomics_native_if_any="$ATOMICS_LIST"
2169 w32threads_deps="atomics_native"
2170 threads_if_any="$THREADS_LIST"
2171
2172 # subsystems
2173 dct_select="rdft"
2174 error_resilience_select="me_cmp"
2175 faandct_deps="faan fdctdsp"
2176 faanidct_deps="faan idctdsp"
2177 frame_thread_encoder_deps="encoders threads"
2178 intrax8_select="error_resilience"
2179 mdct_select="fft"
2180 rdft_select="fft"
2181 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2182 mpeg_er_select="error_resilience"
2183 mpegaudio_select="mpegaudiodsp"
2184 mpegaudiodsp_select="dct"
2185 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2186 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2187 qsvdec_select="qsv"
2188 qsvenc_select="qsv"
2189
2190 # decoders / encoders
2191 aac_decoder_select="imdct15 mdct sinewin"
2192 aac_fixed_decoder_select="mdct sinewin"
2193 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2194 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2195 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2196 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2197 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2198 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2199 adpcm_g722_decoder_select="g722dsp"
2200 adpcm_g722_encoder_select="g722dsp"
2201 aic_decoder_select="golomb idctdsp"
2202 alac_encoder_select="lpc"
2203 als_decoder_select="bswapdsp"
2204 amrnb_decoder_select="lsp"
2205 amrwb_decoder_select="lsp"
2206 amv_decoder_select="sp5x_decoder exif"
2207 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2208 ape_decoder_select="bswapdsp llauddsp"
2209 apng_decoder_select="zlib"
2210 apng_encoder_select="huffyuvencdsp zlib"
2211 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2212 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2213 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2214 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2215 atrac1_decoder_select="mdct sinewin"
2216 atrac3_decoder_select="mdct"
2217 atrac3p_decoder_select="mdct sinewin"
2218 avrn_decoder_select="exif jpegtables"
2219 bink_decoder_select="blockdsp hpeldsp"
2220 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2221 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2222 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2223 cllc_decoder_select="bswapdsp"
2224 comfortnoise_encoder_select="lpc"
2225 cook_decoder_select="audiodsp mdct sinewin"
2226 cscd_decoder_select="lzo"
2227 cscd_decoder_suggest="zlib"
2228 dca_decoder_select="fmtconvert mdct"
2229 dds_decoder_select="texturedsp"
2230 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2231 dnxhd_decoder_select="blockdsp idctdsp"
2232 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2233 dvvideo_decoder_select="dvprofile idctdsp"
2234 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2235 dxa_decoder_select="zlib"
2236 dxv_decoder_select="lzf texturedsp"
2237 eac3_decoder_select="ac3_decoder"
2238 eac3_encoder_select="ac3_encoder"
2239 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2240 eatgq_decoder_select="aandcttables"
2241 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2242 exr_decoder_select="zlib"
2243 ffv1_decoder_select="golomb rangecoder"
2244 ffv1_encoder_select="rangecoder"
2245 ffvhuff_decoder_select="huffyuv_decoder"
2246 ffvhuff_encoder_select="huffyuv_encoder"
2247 fic_decoder_select="golomb"
2248 flac_decoder_select="flacdsp golomb"
2249 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2250 flashsv_decoder_select="zlib"
2251 flashsv_encoder_select="zlib"
2252 flashsv2_encoder_select="zlib"
2253 flashsv2_decoder_select="zlib"
2254 flv_decoder_select="h263_decoder"
2255 flv_encoder_select="h263_encoder"
2256 fourxm_decoder_select="blockdsp bswapdsp"
2257 fraps_decoder_select="bswapdsp huffman"
2258 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2259 g729_decoder_select="audiodsp"
2260 h261_decoder_select="mpegvideo"
2261 h261_encoder_select="aandcttables mpegvideoenc"
2262 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2263 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2264 h263i_decoder_select="h263_decoder"
2265 h263p_decoder_select="h263_decoder"
2266 h263p_encoder_select="h263_encoder"
2267 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2268 h264_decoder_suggest="error_resilience"
2269 h264_qsv_decoder_deps="libmfx"
2270 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2271 h264_qsv_encoder_deps="libmfx"
2272 h264_qsv_encoder_select="qsvenc"
2273 hap_decoder_select="snappy texturedsp"
2274 hap_encoder_deps="libsnappy"
2275 hap_encoder_select="texturedspenc"
2276 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2277 hevc_qsv_encoder_deps="libmfx"
2278 hevc_qsv_decoder_deps="libmfx"
2279 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2280 hevc_qsv_encoder_select="qsvenc"
2281 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2282 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2283 iac_decoder_select="imc_decoder"
2284 imc_decoder_select="bswapdsp fft mdct sinewin"
2285 indeo3_decoder_select="hpeldsp"
2286 indeo4_decoder_select="ividsp"
2287 indeo5_decoder_select="ividsp"
2288 interplay_video_decoder_select="hpeldsp"
2289 jpegls_decoder_select="golomb mjpeg_decoder"
2290 jpegls_encoder_select="golomb"
2291 jv_decoder_select="blockdsp"
2292 lagarith_decoder_select="huffyuvdsp"
2293 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2294 loco_decoder_select="golomb"
2295 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2296 metasound_decoder_select="lsp mdct sinewin"
2297 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2298 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2299 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2300 mjpegb_decoder_select="mjpeg_decoder"
2301 mlp_decoder_select="mlp_parser"
2302 motionpixels_decoder_select="bswapdsp"
2303 mp1_decoder_select="mpegaudio"
2304 mp1float_decoder_select="mpegaudio"
2305 mp2_decoder_select="mpegaudio"
2306 mp2float_decoder_select="mpegaudio"
2307 mp3_decoder_select="mpegaudio"
2308 mp3adu_decoder_select="mpegaudio"
2309 mp3adufloat_decoder_select="mpegaudio"
2310 mp3float_decoder_select="mpegaudio"
2311 mp3on4_decoder_select="mpegaudio"
2312 mp3on4float_decoder_select="mpegaudio"
2313 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2314 mpc8_decoder_select="mpegaudiodsp"
2315 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2316 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2317 mpegvideo_decoder_select="mpegvideo"
2318 mpeg1video_decoder_select="mpegvideo"
2319 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2320 mpeg2video_decoder_select="mpegvideo"
2321 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2322 mpeg2_qsv_decoder_deps="libmfx"
2323 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2324 mpeg2_qsv_encoder_deps="libmfx"
2325 mpeg2_qsv_encoder_select="qsvenc"
2326 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2327 mpeg4_encoder_select="h263_encoder"
2328 msa1_decoder_select="mss34dsp"
2329 msmpeg4v1_decoder_select="h263_decoder"
2330 msmpeg4v2_decoder_select="h263_decoder"
2331 msmpeg4v2_encoder_select="h263_encoder"
2332 msmpeg4v3_decoder_select="h263_decoder"
2333 msmpeg4v3_encoder_select="h263_encoder"
2334 mss2_decoder_select="vc1_decoder"
2335 mts2_decoder_select="mss34dsp"
2336 mxpeg_decoder_select="mjpeg_decoder"
2337 nellymoser_decoder_select="mdct sinewin"
2338 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2339 nuv_decoder_select="idctdsp lzo"
2340 on2avc_decoder_select="mdct"
2341 opus_decoder_deps="swresample"
2342 opus_decoder_select="imdct15"
2343 png_decoder_select="zlib"
2344 png_encoder_select="huffyuvencdsp zlib"
2345 prores_decoder_select="blockdsp idctdsp"
2346 prores_encoder_select="fdctdsp"
2347 qcelp_decoder_select="lsp"
2348 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2349 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2350 ra_144_decoder_select="audiodsp"
2351 ralf_decoder_select="golomb"
2352 rawvideo_decoder_select="bswapdsp"
2353 rscc_decoder_select="zlib"
2354 rtjpeg_decoder_select="me_cmp"
2355 rv10_decoder_select="h263_decoder"
2356 rv10_encoder_select="h263_encoder"
2357 rv20_decoder_select="h263_decoder"
2358 rv20_encoder_select="h263_encoder"
2359 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2360 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2361 screenpresso_decoder_select="zlib"
2362 shorten_decoder_select="golomb"
2363 sipr_decoder_select="lsp"
2364 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2365 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2366 sonic_decoder_select="golomb rangecoder"
2367 sonic_encoder_select="golomb rangecoder"
2368 sonic_ls_encoder_select="golomb rangecoder"
2369 sp5x_decoder_select="mjpeg_decoder"
2370 svq1_decoder_select="hpeldsp"
2371 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2372 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2373 svq3_decoder_suggest="zlib"
2374 tak_decoder_select="audiodsp"
2375 tdsc_decoder_select="zlib mjpeg_decoder"
2376 theora_decoder_select="vp3_decoder"
2377 thp_decoder_select="mjpeg_decoder"
2378 tiff_decoder_suggest="zlib lzma"
2379 tiff_encoder_suggest="zlib"
2380 truehd_decoder_select="mlp_parser"
2381 truemotion2_decoder_select="bswapdsp"
2382 truespeech_decoder_select="bswapdsp"
2383 tscc_decoder_select="zlib"
2384 twinvq_decoder_select="mdct lsp sinewin"
2385 txd_decoder_select="texturedsp"
2386 utvideo_decoder_select="bswapdsp"
2387 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2388 vble_decoder_select="huffyuvdsp"
2389 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2390 vc1image_decoder_select="vc1_decoder"
2391 vc1_qsv_decoder_deps="libmfx"
2392 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2393 vorbis_decoder_select="mdct"
2394 vorbis_encoder_select="mdct"
2395 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2396 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2397 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2398 vp6a_decoder_select="vp6_decoder"
2399 vp6f_decoder_select="vp6_decoder"
2400 vp7_decoder_select="h264pred videodsp vp8dsp"
2401 vp8_decoder_select="h264pred videodsp vp8dsp"
2402 vp9_decoder_select="videodsp vp9_parser"
2403 webp_decoder_select="vp8_decoder"
2404 wmalossless_decoder_select="llauddsp"
2405 wmapro_decoder_select="mdct sinewin wma_freqs"
2406 wmav1_decoder_select="mdct sinewin wma_freqs"
2407 wmav1_encoder_select="mdct sinewin wma_freqs"
2408 wmav2_decoder_select="mdct sinewin wma_freqs"
2409 wmav2_encoder_select="mdct sinewin wma_freqs"
2410 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2411 wmv1_decoder_select="h263_decoder"
2412 wmv1_encoder_select="h263_encoder"
2413 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2414 wmv2_encoder_select="h263_encoder wmv2dsp"
2415 wmv3_decoder_select="vc1_decoder"
2416 wmv3image_decoder_select="wmv3_decoder"
2417 zerocodec_decoder_select="zlib"
2418 zlib_decoder_select="zlib"
2419 zlib_encoder_select="zlib"
2420 zmbv_decoder_select="zlib"
2421 zmbv_encoder_select="zlib"
2422
2423 # hardware accelerators
2424 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2425 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2426 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2427 vaapi_deps="va_va_h"
2428 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2429 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2430 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2431 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2432 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2433 xvmc_deps="X11_extensions_XvMClib_h"
2434
2435 h263_vaapi_hwaccel_deps="vaapi"
2436 h263_vaapi_hwaccel_select="h263_decoder"
2437 h263_videotoolbox_hwaccel_deps="videotoolbox"
2438 h263_videotoolbox_hwaccel_select="h263_decoder"
2439 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2440 h264_d3d11va_hwaccel_deps="d3d11va"
2441 h264_d3d11va_hwaccel_select="h264_decoder"
2442 h264_dxva2_hwaccel_deps="dxva2"
2443 h264_dxva2_hwaccel_select="h264_decoder"
2444 h264_mmal_decoder_deps="mmal"
2445 h264_mmal_hwaccel_deps="mmal"
2446 h264_mmal_decoder_select="h264_decoder"
2447 h264_mmal_encoder_deps="mmal"
2448 h264_qsv_hwaccel_deps="libmfx"
2449 h264_vaapi_hwaccel_deps="vaapi"
2450 h264_vaapi_hwaccel_select="h264_decoder"
2451 h264_vda_decoder_deps="vda"
2452 h264_vda_decoder_select="h264_decoder"
2453 h264_vda_hwaccel_deps="vda"
2454 h264_vda_hwaccel_select="h264_decoder"
2455 h264_vda_old_hwaccel_deps="vda"
2456 h264_vda_old_hwaccel_select="h264_decoder"
2457 h264_vdpau_decoder_deps="vdpau"
2458 h264_vdpau_decoder_select="h264_decoder"
2459 h264_vdpau_hwaccel_deps="vdpau"
2460 h264_vdpau_hwaccel_select="h264_decoder"
2461 h264_videotoolbox_hwaccel_deps="videotoolbox"
2462 h264_videotoolbox_hwaccel_select="h264_decoder"
2463 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2464 hevc_d3d11va_hwaccel_select="hevc_decoder"
2465 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2466 hevc_dxva2_hwaccel_select="hevc_decoder"
2467 hevc_qsv_hwaccel_deps="libmfx"
2468 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2469 hevc_vaapi_hwaccel_select="hevc_decoder"
2470 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2471 hevc_vdpau_hwaccel_select="hevc_decoder"
2472 mpeg_vdpau_decoder_deps="vdpau"
2473 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2474 mpeg_xvmc_hwaccel_deps="xvmc"
2475 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2476 mpeg1_vdpau_decoder_deps="vdpau"
2477 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2478 mpeg1_vdpau_hwaccel_deps="vdpau"
2479 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2480 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2481 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2482 mpeg1_xvmc_hwaccel_deps="xvmc"
2483 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2484 mpeg2_crystalhd_decoder_select="crystalhd"
2485 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2486 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2487 mpeg2_dxva2_hwaccel_deps="dxva2"
2488 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2489 mpeg2_mmal_decoder_deps="mmal"
2490 mpeg2_mmal_hwaccel_deps="mmal"
2491 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2492 mpeg2_qsv_hwaccel_deps="libmfx"
2493 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2494 mpeg2_vaapi_hwaccel_deps="vaapi"
2495 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2496 mpeg2_vdpau_hwaccel_deps="vdpau"
2497 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2498 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2499 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2500 mpeg2_xvmc_hwaccel_deps="xvmc"
2501 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2502 mpeg4_crystalhd_decoder_select="crystalhd"
2503 mpeg4_vaapi_hwaccel_deps="vaapi"
2504 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2505 mpeg4_vdpau_decoder_deps="vdpau"
2506 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2507 mpeg4_vdpau_hwaccel_deps="vdpau"
2508 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2509 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2510 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2511 msmpeg4_crystalhd_decoder_select="crystalhd"
2512 vc1_crystalhd_decoder_select="crystalhd"
2513 vc1_d3d11va_hwaccel_deps="d3d11va"
2514 vc1_d3d11va_hwaccel_select="vc1_decoder"
2515 vc1_dxva2_hwaccel_deps="dxva2"
2516 vc1_dxva2_hwaccel_select="vc1_decoder"
2517 vc1_vaapi_hwaccel_deps="vaapi"
2518 vc1_vaapi_hwaccel_select="vc1_decoder"
2519 vc1_vdpau_decoder_deps="vdpau"
2520 vc1_vdpau_decoder_select="vc1_decoder"
2521 vc1_vdpau_hwaccel_deps="vdpau"
2522 vc1_vdpau_hwaccel_select="vc1_decoder"
2523 vc1_mmal_decoder_deps="mmal"
2524 vc1_mmal_hwaccel_deps="mmal"
2525 vc1_mmal_decoder_select="vc1_decoder"
2526 vc1_qsv_hwaccel_deps="libmfx"
2527 vc1_qsv_hwaccel_select="qsvdec_vc1"
2528 wmv3_crystalhd_decoder_select="crystalhd"
2529 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2530 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2531 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2532 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2533 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2534
2535 # parsers
2536 h264_parser_select="h264_decoder"
2537 hevc_parser_select="golomb"
2538 mpegvideo_parser_select="mpegvideo"
2539 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2540 vc1_parser_select="mpegvideo startcode vc1_decoder"
2541
2542 # bitstream_filters
2543 mjpeg2jpeg_bsf_select="jpegtables"
2544
2545 # external libraries
2546 chromaprint_muxer_deps="chromaprint"
2547 libaacplus_encoder_deps="libaacplus"
2548 libcelt_decoder_deps="libcelt"
2549 libdcadec_decoder_deps="libdcadec"
2550 libfaac_encoder_deps="libfaac"
2551 libfaac_encoder_select="audio_frame_queue"
2552 libfdk_aac_decoder_deps="libfdk_aac"
2553 libfdk_aac_encoder_deps="libfdk_aac"
2554 libfdk_aac_encoder_select="audio_frame_queue"
2555 libgme_demuxer_deps="libgme"
2556 libgsm_decoder_deps="libgsm"
2557 libgsm_encoder_deps="libgsm"
2558 libgsm_ms_decoder_deps="libgsm"
2559 libgsm_ms_encoder_deps="libgsm"
2560 libilbc_decoder_deps="libilbc"
2561 libilbc_encoder_deps="libilbc"
2562 libkvazaar_encoder_deps="libkvazaar"
2563 libmodplug_demuxer_deps="libmodplug"
2564 libmp3lame_encoder_deps="libmp3lame"
2565 libmp3lame_encoder_select="audio_frame_queue"
2566 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2567 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2568 libopencore_amrnb_encoder_select="audio_frame_queue"
2569 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2570 libopenh264_encoder_deps="libopenh264"
2571 libopenjpeg_decoder_deps="libopenjpeg"
2572 libopenjpeg_encoder_deps="libopenjpeg"
2573 libopus_decoder_deps="libopus"
2574 libopus_encoder_deps="libopus"
2575 libopus_encoder_select="audio_frame_queue"
2576 libquvi_demuxer_deps="libquvi"
2577 libschroedinger_decoder_deps="libschroedinger"
2578 libschroedinger_encoder_deps="libschroedinger"
2579 libshine_encoder_deps="libshine"
2580 libshine_encoder_select="audio_frame_queue"
2581 libspeex_decoder_deps="libspeex"
2582 libspeex_encoder_deps="libspeex"
2583 libspeex_encoder_select="audio_frame_queue"
2584 libstagefright_h264_decoder_deps="libstagefright_h264"
2585 libtheora_encoder_deps="libtheora"
2586 libtwolame_encoder_deps="libtwolame"
2587 libvo_aacenc_encoder_deps="libvo_aacenc"
2588 libvo_aacenc_encoder_select="audio_frame_queue"
2589 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2590 libvorbis_decoder_deps="libvorbis"
2591 libvorbis_encoder_deps="libvorbis"
2592 libvorbis_encoder_select="audio_frame_queue"
2593 libvpx_vp8_decoder_deps="libvpx"
2594 libvpx_vp8_encoder_deps="libvpx"
2595 libvpx_vp9_decoder_deps="libvpx"
2596 libvpx_vp9_encoder_deps="libvpx"
2597 libwavpack_encoder_deps="libwavpack"
2598 libwebp_encoder_deps="libwebp"
2599 libwebp_anim_encoder_deps="libwebp"
2600 libx262_encoder_deps="libx262"
2601 libx264_encoder_deps="libx264"
2602 libx264rgb_encoder_deps="libx264"
2603 libx264rgb_encoder_select="libx264_encoder"
2604 libx265_encoder_deps="libx265"
2605 libxavs_encoder_deps="libxavs"
2606 libxvid_encoder_deps="libxvid"
2607 libutvideo_decoder_deps="libutvideo"
2608 libutvideo_encoder_deps="libutvideo"
2609 libzvbi_teletext_decoder_deps="libzvbi"
2610 nvenc_encoder_deps="nvenc"
2611 nvenc_h264_encoder_deps="nvenc"
2612 nvenc_hevc_encoder_deps="nvenc"
2613
2614 # demuxers / muxers
2615 ac3_demuxer_select="ac3_parser"
2616 asf_demuxer_select="riffdec"
2617 asf_o_demuxer_select="riffdec"
2618 asf_muxer_select="riffenc"
2619 asf_stream_muxer_select="asf_muxer"
2620 avi_demuxer_select="riffdec exif"
2621 avi_muxer_select="riffenc"
2622 avisynth_demuxer_deps="avisynth"
2623 avisynth_demuxer_select="riffdec"
2624 caf_demuxer_select="riffdec"
2625 dash_muxer_select="mp4_muxer"
2626 dirac_demuxer_select="dirac_parser"
2627 dts_demuxer_select="dca_parser"
2628 dtshd_demuxer_select="dca_parser"
2629 dv_demuxer_select="dvprofile"
2630 dv_muxer_select="dvprofile"
2631 dxa_demuxer_select="riffdec"
2632 eac3_demuxer_select="ac3_parser"
2633 f4v_muxer_select="mov_muxer"
2634 flac_demuxer_select="flac_parser"
2635 hds_muxer_select="flv_muxer"
2636 hls_muxer_select="mpegts_muxer"
2637 image2_alias_pix_demuxer_select="image2_demuxer"
2638 image2_brender_pix_demuxer_select="image2_demuxer"
2639 ipod_muxer_select="mov_muxer"
2640 ismv_muxer_select="mov_muxer"
2641 libnut_demuxer_deps="libnut"
2642 libnut_muxer_deps="libnut"
2643 matroska_audio_muxer_select="matroska_muxer"
2644 matroska_demuxer_select="riffdec"
2645 matroska_demuxer_suggest="bzlib lzo zlib"
2646 matroska_muxer_select="riffenc"
2647 mmf_muxer_select="riffenc"
2648 mov_demuxer_select="riffdec"
2649 mov_demuxer_suggest="zlib"
2650 mov_muxer_select="riffenc rtpenc_chain"
2651 mp3_demuxer_select="mpegaudio_parser"
2652 mp4_muxer_select="mov_muxer"
2653 mpegts_muxer_select="adts_muxer latm_muxer"
2654 mpegtsraw_demuxer_select="mpegts_demuxer"
2655 mxf_d10_muxer_select="mxf_muxer"
2656 mxf_opatom_muxer_select="mxf_muxer"
2657 nut_muxer_select="riffenc"
2658 nuv_demuxer_select="riffdec"
2659 oga_muxer_select="ogg_muxer"
2660 ogg_demuxer_select="golomb"
2661 opus_muxer_select="ogg_muxer"
2662 psp_muxer_select="mov_muxer"
2663 rtp_demuxer_select="sdp_demuxer"
2664 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2665 rtsp_demuxer_select="http_protocol rtpdec"
2666 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2667 sap_demuxer_select="sdp_demuxer"
2668 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2669 sdp_demuxer_select="rtpdec"
2670 smoothstreaming_muxer_select="ismv_muxer"
2671 spdif_muxer_select="aac_parser"
2672 spx_muxer_select="ogg_muxer"
2673 tak_demuxer_select="tak_parser"
2674 tg2_muxer_select="mov_muxer"
2675 tgp_muxer_select="mov_muxer"
2676 vobsub_demuxer_select="mpegps_demuxer"
2677 w64_demuxer_select="wav_demuxer"
2678 w64_muxer_select="wav_muxer"
2679 wav_demuxer_select="riffdec"
2680 wav_muxer_select="riffenc"
2681 webm_muxer_select="riffenc"
2682 wtv_demuxer_select="riffdec"
2683 wtv_muxer_select="riffenc"
2684 xmv_demuxer_select="riffdec"
2685 xwma_demuxer_select="riffdec"
2686
2687 # indevs / outdevs
2688 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2689 alsa_outdev_deps="alsa_asoundlib_h"
2690 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2691 avfoundation_indev_select="avfoundation"
2692 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2693 caca_outdev_deps="libcaca"
2694 decklink_outdev_deps="decklink pthreads"
2695 decklink_outdev_extralibs="-lstdc++"
2696 decklink_indev_deps="decklink pthreads"
2697 decklink_indev_extralibs="-lstdc++"
2698 dshow_indev_deps="IBaseFilter"
2699 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2700 dv1394_indev_deps="dv1394"
2701 dv1394_indev_select="dv_demuxer"
2702 fbdev_indev_deps="linux_fb_h"
2703 fbdev_outdev_deps="linux_fb_h"
2704 gdigrab_indev_deps="CreateDIBSection"
2705 gdigrab_indev_extralibs="-lgdi32"
2706 gdigrab_indev_select="bmp_decoder"
2707 iec61883_indev_deps="libiec61883"
2708 jack_indev_deps="jack_jack_h sem_timedwait"
2709 lavfi_indev_deps="avfilter"
2710 libcdio_indev_deps="libcdio"
2711 libdc1394_indev_deps="libdc1394"
2712 libv4l2_indev_deps="libv4l2"
2713 openal_indev_deps="openal"
2714 opengl_outdev_deps="opengl"
2715 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2716 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2717 pulse_indev_deps="libpulse"
2718 pulse_outdev_deps="libpulse"
2719 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2720 qtkit_indev_select="qtkit"
2721 sdl_outdev_deps="sdl"
2722 sndio_indev_deps="sndio_h"
2723 sndio_outdev_deps="sndio_h"
2724 v4l_indev_deps="linux_videodev_h"
2725 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2726 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2727 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2728 vfwcap_indev_extralibs="-lavicap32"
2729 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2730 xv_outdev_extralibs="-lXv -lX11 -lXext"
2731 x11grab_indev_deps="x11grab"
2732 x11grab_xcb_indev_deps="libxcb"
2733
2734 # protocols
2735 async_protocol_deps="threads"
2736 bluray_protocol_deps="libbluray"
2737 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2738 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2739 ffrtmpcrypt_protocol_select="tcp_protocol"
2740 ffrtmphttp_protocol_deps="!librtmp_protocol"
2741 ffrtmphttp_protocol_select="http_protocol"
2742 ftp_protocol_select="tcp_protocol"
2743 gopher_protocol_select="network"
2744 http_protocol_select="tcp_protocol"
2745 httpproxy_protocol_select="tcp_protocol"
2746 https_protocol_select="tls_protocol"
2747 icecast_protocol_select="http_protocol"
2748 librtmp_protocol_deps="librtmp"
2749 librtmpe_protocol_deps="librtmp"
2750 librtmps_protocol_deps="librtmp"
2751 librtmpt_protocol_deps="librtmp"
2752 librtmpte_protocol_deps="librtmp"
2753 libsmbclient_protocol_deps="libsmbclient gplv3"
2754 libssh_protocol_deps="libssh"
2755 mmsh_protocol_select="http_protocol"
2756 mmst_protocol_select="network"
2757 rtmp_protocol_deps="!librtmp_protocol"
2758 rtmp_protocol_select="tcp_protocol"
2759 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2760 rtmps_protocol_deps="!librtmp_protocol"
2761 rtmps_protocol_select="tls_protocol"
2762 rtmpt_protocol_select="ffrtmphttp_protocol"
2763 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2764 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2765 rtp_protocol_select="udp_protocol"
2766 sctp_protocol_deps="struct_sctp_event_subscribe"
2767 sctp_protocol_select="network"
2768 srtp_protocol_select="rtp_protocol"
2769 tcp_protocol_select="network"
2770 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2771 tls_gnutls_protocol_select="tcp_protocol"
2772 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2773 tls_openssl_protocol_select="tcp_protocol"
2774 tls_schannel_protocol_deps="schannel"
2775 tls_schannel_protocol_select="tcp_protocol"
2776 tls_securetransport_protocol_deps="securetransport"
2777 tls_securetransport_protocol_select="tcp_protocol"
2778 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2779 udp_protocol_select="network"
2780 udplite_protocol_select="network"
2781 unix_protocol_deps="sys_un_h"
2782 unix_protocol_select="network"
2783
2784 # filters
2785 amovie_filter_deps="avcodec avformat"
2786 aresample_filter_deps="swresample"
2787 ass_filter_deps="libass"
2788 asyncts_filter_deps="avresample"
2789 atempo_filter_deps="avcodec"
2790 atempo_filter_select="rdft"
2791 azmq_filter_deps="libzmq"
2792 blackframe_filter_deps="gpl"
2793 boxblur_filter_deps="gpl"
2794 bs2b_filter_deps="libbs2b"
2795 colormatrix_filter_deps="gpl"
2796 cover_rect_filter_deps="avcodec avformat gpl"
2797 cropdetect_filter_deps="gpl"
2798 delogo_filter_deps="gpl"
2799 deshake_filter_select="pixelutils"
2800 drawtext_filter_deps="libfreetype"
2801 dynaudnorm_filter_deps="copysign erf"
2802 ebur128_filter_deps="gpl"
2803 eq_filter_deps="gpl"
2804 fftfilt_filter_deps="avcodec"
2805 fftfilt_filter_select="rdft"
2806 flite_filter_deps="libflite"
2807 find_rect_filter_deps="avcodec avformat gpl"
2808 frei0r_filter_deps="frei0r dlopen"
2809 frei0r_src_filter_deps="frei0r dlopen"
2810 fspp_filter_deps="gpl"
2811 geq_filter_deps="gpl"
2812 histeq_filter_deps="gpl"
2813 hqdn3d_filter_deps="gpl"
2814 interlace_filter_deps="gpl"
2815 kerndeint_filter_deps="gpl"
2816 ladspa_filter_deps="ladspa dlopen"
2817 mcdeint_filter_deps="avcodec gpl"
2818 movie_filter_deps="avcodec avformat"
2819 mpdecimate_filter_deps="gpl"
2820 mpdecimate_filter_select="pixelutils"
2821 mptestsrc_filter_deps="gpl"
2822 negate_filter_deps="lut_filter"
2823 perspective_filter_deps="gpl"
2824 pp7_filter_deps="gpl"
2825 ocr_filter_deps="libtesseract"
2826 ocv_filter_deps="libopencv"
2827 owdenoise_filter_deps="gpl"
2828 pan_filter_deps="swresample"
2829 phase_filter_deps="gpl"
2830 pp_filter_deps="gpl postproc"
2831 pullup_filter_deps="gpl"
2832 removelogo_filter_deps="avcodec avformat swscale"
2833 repeatfields_filter_deps="gpl"
2834 resample_filter_deps="avresample"
2835 rubberband_filter_deps="librubberband"
2836 sab_filter_deps="gpl swscale"
2837 scale_filter_deps="swscale"
2838 scale2ref_filter_deps="swscale"
2839 select_filter_select="pixelutils"
2840 smartblur_filter_deps="gpl swscale"
2841 showcqt_filter_deps="avcodec avformat swscale"
2842 showcqt_filter_select="fft"
2843 showfreqs_filter_deps="avcodec"
2844 showfreqs_filter_select="fft"
2845 showspectrum_filter_deps="avcodec"
2846 showspectrum_filter_select="rdft"
2847 spp_filter_deps="gpl avcodec"
2848 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2849 stereo3d_filter_deps="gpl"
2850 subtitles_filter_deps="avformat avcodec libass"
2851 super2xsai_filter_deps="gpl"
2852 tinterlace_filter_deps="gpl"
2853 vidstabdetect_filter_deps="libvidstab"
2854 vidstabtransform_filter_deps="libvidstab"
2855 pixfmts_super2xsai_test_deps="super2xsai_filter"
2856 tinterlace_merge_test_deps="tinterlace_filter"
2857 tinterlace_pad_test_deps="tinterlace_filter"
2858 uspp_filter_deps="gpl avcodec"
2859 zmq_filter_deps="libzmq"
2860 zoompan_filter_deps="swscale"
2861 zscale_filter_deps="libzimg"
2862
2863 # examples
2864 avio_reading="avformat avcodec avutil"
2865 avio_dir_cmd="avformat avutil"
2866 avcodec_example_deps="avcodec avutil"
2867 decoding_encoding_example_deps="avcodec avformat avutil"
2868 demuxing_decoding_example_deps="avcodec avformat avutil"
2869 extract_mvs_example_deps="avcodec avformat avutil"
2870 filter_audio_example_deps="avfilter avutil"
2871 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2872 filtering_video_example_deps="avfilter avcodec avformat avutil"
2873 metadata_example_deps="avformat avutil"
2874 muxing_example_deps="avcodec avformat avutil swscale"
2875 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2876 remuxing_example_deps="avcodec avformat avutil"
2877 resampling_audio_example_deps="avutil swresample"
2878 scaling_video_example_deps="avutil swscale"
2879 transcode_aac_example_deps="avcodec avformat swresample"
2880 transcoding_example_deps="avfilter avcodec avformat avutil"
2881
2882 # libraries, in linking order
2883 avcodec_deps="avutil"
2884 avdevice_deps="avformat avcodec avutil"
2885 avfilter_deps="avutil"
2886 avformat_deps="avcodec avutil"
2887 avresample_deps="avutil"
2888 postproc_deps="avutil gpl"
2889 swresample_deps="avutil"
2890 swscale_deps="avutil"
2891
2892 # programs
2893 ffmpeg_deps="avcodec avfilter avformat swresample"
2894 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2895                null_filter
2896                setpts_filter trim_filter"
2897 ffplay_deps="avcodec avformat swscale swresample sdl"
2898 ffplay_libs='$sdl_libs'
2899 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2900 ffprobe_deps="avcodec avformat"
2901 ffserver_deps="avformat fork sarestart"
2902 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2903
2904 # documentation
2905 podpages_deps="perl"
2906 manpages_deps="perl pod2man"
2907 htmlpages_deps="perl"
2908 htmlpages_deps_any="makeinfo_html texi2html"
2909 txtpages_deps="perl makeinfo"
2910 doc_deps_any="manpages htmlpages podpages txtpages"
2911
2912 # default parameters
2913
2914 logfile="config.log"
2915
2916 # installation paths
2917 prefix_default="/usr/local"
2918 bindir_default='${prefix}/bin'
2919 datadir_default='${prefix}/share/ffmpeg'
2920 docdir_default='${prefix}/share/doc/ffmpeg'
2921 incdir_default='${prefix}/include'
2922 libdir_default='${prefix}/lib'
2923 mandir_default='${prefix}/share/man'
2924
2925 # toolchain
2926 ar_default="ar"
2927 cc_default="gcc"
2928 cxx_default="g++"
2929 host_cc_default="gcc"
2930 cp_f="cp -f"
2931 doxygen_default="doxygen"
2932 install="install"
2933 ln_s="ln -s -f"
2934 nm_default="nm -g"
2935 objformat="elf"
2936 pkg_config_default=pkg-config
2937 ranlib_default="ranlib"
2938 strip_default="strip"
2939 yasmexe_default="yasm"
2940 windres_default="windres"
2941
2942 # OS
2943 target_os_default=$(tolower $(uname -s))
2944 host_os=$target_os_default
2945
2946 # machine
2947 if test "$target_os_default" = aix; then
2948     arch_default=$(uname -p)
2949     strip_default="strip -X32_64"
2950 else
2951     arch_default=$(uname -m)
2952 fi
2953 cpu="generic"
2954 intrinsics="none"
2955
2956 # configurable options
2957 enable $PROGRAM_LIST
2958 enable $DOCUMENT_LIST
2959 enable $EXAMPLE_LIST
2960 enable $(filter_out avresample $LIBRARY_LIST)
2961 enable stripping
2962
2963 enable asm
2964 enable debug
2965 enable doc
2966 enable faan faandct faanidct
2967 enable optimizations
2968 enable runtime_cpudetect
2969 enable safe_bitstream_reader
2970 enable static
2971 enable swscale_alpha
2972 enable valgrind_backtrace
2973
2974 sws_max_filter_size_default=256
2975 set_default sws_max_filter_size
2976
2977 # Enable hwaccels by default.
2978 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
2979 enable xlib
2980
2981 # build settings
2982 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2983 LIBPREF="lib"
2984 LIBSUF=".a"
2985 FULLNAME='$(NAME)$(BUILDSUF)'
2986 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2987 SLIBPREF="lib"
2988 SLIBSUF=".so"
2989 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2990 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2991 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2992 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2993 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2994 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2995
2996 asflags_filter=echo
2997 cflags_filter=echo
2998 ldflags_filter=echo
2999
3000 AS_C='-c'
3001 AS_O='-o $@'
3002 CC_C='-c'
3003 CC_E='-E -o $@'
3004 CC_O='-o $@'
3005 CXX_C='-c'
3006 CXX_O='-o $@'
3007 LD_O='-o $@'
3008 LD_LIB='-l%'
3009 LD_PATH='-L'
3010 HOSTCC_C='-c'
3011 HOSTCC_E='-E -o $@'
3012 HOSTCC_O='-o $@'
3013 HOSTLD_O='-o $@'
3014
3015 host_libs='-lm'
3016 host_cflags_filter=echo
3017 host_ldflags_filter=echo
3018
3019 target_path='$(CURDIR)'
3020
3021 # since the object filename is not given with the -MM flag, the compiler
3022 # is only able to print the basename, and we must add the path ourselves
3023 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3024 DEPFLAGS='-MM'
3025
3026 # find source path
3027 if test -f configure; then
3028     source_path=.
3029 else
3030     source_path=$(cd $(dirname "$0"); pwd)
3031     case "$source_path" in
3032         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3033     esac
3034     test -e "$source_path/config.h" &&
3035         die "Out of tree builds are impossible with config.h in source dir."
3036 fi
3037
3038 for v in "$@"; do
3039     r=${v#*=}
3040     l=${v%"$r"}
3041     r=$(sh_quote "$r")
3042     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3043 done
3044
3045 find_things(){
3046     thing=$1
3047     pattern=$2
3048     file=$source_path/$3
3049     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3050 }
3051
3052 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3053 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3054 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3055 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3056 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3057 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3058 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3059 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3060 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3061 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3062 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3063
3064 ALL_COMPONENTS="
3065     $BSF_LIST
3066     $DECODER_LIST
3067     $DEMUXER_LIST
3068     $ENCODER_LIST
3069     $FILTER_LIST
3070     $HWACCEL_LIST
3071     $INDEV_LIST
3072     $MUXER_LIST
3073     $OUTDEV_LIST
3074     $PARSER_LIST
3075     $PROTOCOL_LIST
3076 "
3077
3078 for n in $COMPONENT_LIST; do
3079     v=$(toupper ${n%s})_LIST
3080     eval enable \$$v
3081     eval ${n}_if_any="\$$v"
3082 done
3083
3084 enable $ARCH_EXT_LIST
3085
3086 die_unknown(){
3087     echo "Unknown option \"$1\"."
3088     echo "See $0 --help for available options."
3089     exit 1
3090 }
3091
3092 print_in_columns() {
3093     cols=$(expr $ncols / 24)
3094     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3095 }
3096
3097 show_list() {
3098     suffix=_$1
3099     shift
3100     echo $* | sed s/$suffix//g | print_in_columns
3101     exit 0
3102 }
3103
3104 rand_list(){
3105     IFS=', '
3106     set -- $*
3107     unset IFS
3108     for thing; do
3109         comp=${thing%:*}
3110         prob=${thing#$comp}
3111         prob=${prob#:}
3112         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3113         echo "prob ${prob:-0.5}"
3114         printf '%s\n' $comp
3115     done
3116 }
3117
3118 do_random(){
3119     action=$1
3120     shift
3121     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3122     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3123 }
3124
3125 for opt do
3126     optval="${opt#*=}"
3127     case "$opt" in
3128         --extra-ldflags=*)
3129             add_ldflags $optval
3130         ;;
3131         --extra-ldexeflags=*)
3132             add_ldexeflags $optval
3133         ;;
3134         --extra-ldlibflags=*)
3135             add_ldlibflags $optval
3136         ;;
3137         --extra-libs=*)
3138             add_extralibs $optval
3139         ;;
3140         --disable-devices)
3141             disable $INDEV_LIST $OUTDEV_LIST
3142         ;;
3143         --enable-debug=*)
3144             debuglevel="$optval"
3145         ;;
3146         --disable-programs)
3147             disable $PROGRAM_LIST
3148         ;;
3149         --disable-everything)
3150             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3151         ;;
3152         --disable-all)
3153             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3154             disable $LIBRARY_LIST $PROGRAM_LIST doc
3155             enable avutil
3156         ;;
3157         --enable-random|--disable-random)
3158             action=${opt%%-random}
3159             do_random ${action#--} $COMPONENT_LIST
3160         ;;
3161         --enable-random=*|--disable-random=*)
3162             action=${opt%%-random=*}
3163             do_random ${action#--} $optval
3164         ;;
3165         --enable-*=*|--disable-*=*)
3166             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3167             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3168             eval list=\$$(toupper $thing)_LIST
3169             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3170             list=$(filter "$name" $list)
3171             [ "$list" = "" ] && warn "Option $opt did not match anything"
3172             $action $list
3173         ;;
3174         --enable-?*|--disable-?*)
3175             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3176             if is_in $option $COMPONENT_LIST; then
3177                 test $action = disable && action=unset
3178                 eval $action \$$(toupper ${option%s})_LIST
3179             elif is_in $option $CMDLINE_SELECT; then
3180                 $action $option
3181             else
3182                 die_unknown $opt
3183             fi
3184         ;;
3185         --list-*)
3186             NAME="${opt#--list-}"
3187             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3188             NAME=${NAME%s}
3189             eval show_list $NAME \$$(toupper $NAME)_LIST
3190         ;;
3191         --help|-h) show_help
3192         ;;
3193         --fatal-warnings) enable fatal_warnings
3194         ;;
3195         *)
3196             optname="${opt%%=*}"
3197             optname="${optname#--}"
3198             optname=$(echo "$optname" | sed 's/-/_/g')
3199             if is_in $optname $CMDLINE_SET; then
3200                 eval $optname='$optval'
3201             elif is_in $optname $CMDLINE_APPEND; then
3202                 append $optname "$optval"
3203             else
3204                 die_unknown $opt
3205             fi
3206         ;;
3207     esac
3208 done
3209
3210 for e in $env; do
3211     eval "export $e"
3212 done
3213
3214 disabled logging && logfile=/dev/null
3215
3216 # Disable all the library-specific components if the library itself
3217 # is disabled, see AVCODEC_LIST and following _LIST variables.
3218
3219 disable_components(){
3220     disabled ${1} && disable $(
3221         eval components="\$$(toupper ${1})_COMPONENTS"
3222         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3223     )
3224 }
3225
3226 map 'disable_components $v' $LIBRARY_LIST
3227
3228 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3229 set >> $logfile
3230
3231 test -n "$valgrind" && toolchain="valgrind-memcheck"
3232
3233 case "$toolchain" in
3234     clang-asan)
3235         cc_default="clang"
3236         add_cflags  -fsanitize=address
3237         add_ldflags -fsanitize=address
3238     ;;
3239     clang-tsan)
3240         cc_default="clang"
3241         add_cflags  -fsanitize=thread -pie
3242         add_ldflags -fsanitize=thread -pie
3243     ;;
3244     clang-usan)
3245         cc_default="clang"
3246         add_cflags  -fsanitize=undefined
3247         add_ldflags -fsanitize=undefined
3248     ;;
3249     gcc-asan)
3250         cc_default="gcc"
3251         add_cflags  -fsanitize=address
3252         add_ldflags -fsanitize=address
3253     ;;
3254     gcc-tsan)
3255         cc_default="gcc"
3256         add_cflags  -fsanitize=thread -pie -fPIC
3257         add_ldflags -fsanitize=thread -pie -fPIC
3258     ;;
3259     gcc-usan)
3260         cc_default="gcc"
3261         add_cflags  -fsanitize=undefined
3262         add_ldflags -fsanitize=undefined
3263     ;;
3264     valgrind-massif)
3265         target_exec_default=${valgrind:-"valgrind"}
3266         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"
3267     ;;
3268     valgrind-memcheck)
3269         target_exec_default=${valgrind:-"valgrind"}
3270         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3271     ;;
3272     msvc)
3273         # Check whether the current MSVC version needs the C99 converter.
3274         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3275         # support enough of C99 to build ffmpeg. Default to the new
3276         # behaviour if the regexp was unable to match anything, since this
3277         # successfully parses the version number of existing supported
3278         # versions that require the converter (MSVC 2010 and 2012).
3279         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3280         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3281             cc_default="cl"
3282         else
3283             cc_default="c99wrap cl"
3284         fi
3285         ld_default="$source_path/compat/windows/mslink"
3286         nm_default="dumpbin -symbols"
3287         ar_default="lib"
3288         case "$arch" in
3289         arm*)
3290             as_default="armasm"
3291             ;;
3292         esac
3293         target_os_default="win32"
3294         # Use a relative path for TMPDIR. This makes sure all the
3295         # ffconf temp files are written with a relative path, avoiding
3296         # issues with msys/win32 path conversion for MSVC parameters
3297         # such as -Fo<file> or -out:<file>.
3298         TMPDIR=.
3299     ;;
3300     icl)
3301         cc_default="icl"
3302         ld_default="xilink"
3303         nm_default="dumpbin -symbols"
3304         ar_default="xilib"
3305         target_os_default="win32"
3306         TMPDIR=.
3307     ;;
3308     gcov)
3309         add_cflags  -fprofile-arcs -ftest-coverage
3310         add_ldflags -fprofile-arcs -ftest-coverage
3311     ;;
3312     hardened)
3313         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3314         add_cflags   -fno-strict-overflow -fstack-protector-all
3315         add_ldflags  -Wl,-z,relro -Wl,-z,now
3316     ;;
3317     ?*)
3318         die "Unknown toolchain $toolchain"
3319     ;;
3320 esac
3321
3322 test -n "$cross_prefix" && enable cross_compile
3323
3324 if enabled cross_compile; then
3325     test -n "$arch" && test -n "$target_os" ||
3326         die "Must specify target arch and OS when cross-compiling"
3327 fi
3328
3329 ar_default="${cross_prefix}${ar_default}"
3330 cc_default="${cross_prefix}${cc_default}"
3331 cxx_default="${cross_prefix}${cxx_default}"
3332 nm_default="${cross_prefix}${nm_default}"
3333 pkg_config_default="${cross_prefix}${pkg_config_default}"
3334 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3335     ranlib_default="${cross_prefix}${ranlib_default} -D"
3336 else
3337     ranlib_default="${cross_prefix}${ranlib_default}"
3338 fi
3339 strip_default="${cross_prefix}${strip_default}"
3340 windres_default="${cross_prefix}${windres_default}"
3341
3342 sysinclude_default="${sysroot}/usr/include"
3343
3344 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3345     target_exec target_os yasmexe
3346 enabled cross_compile || host_cc_default=$cc
3347 set_default host_cc
3348
3349 pkg_config_fail_message=""
3350 if ! $pkg_config --version >/dev/null 2>&1; then
3351     warn "$pkg_config not found, library detection may fail."
3352     pkg_config=false
3353 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3354     pkg_config_fail_message="
3355 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3356 fi
3357
3358 if test $doxygen != $doxygen_default && \
3359   ! $doxygen --version >/dev/null 2>&1; then
3360     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3361 fi
3362
3363 exesuf() {
3364     case $1 in
3365         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3366     esac
3367 }
3368
3369 EXESUF=$(exesuf $target_os)
3370 HOSTEXESUF=$(exesuf $host_os)
3371
3372 # set temporary file name
3373 : ${TMPDIR:=$TEMPDIR}
3374 : ${TMPDIR:=$TMP}
3375 : ${TMPDIR:=/tmp}
3376
3377 if [ -n "$tempprefix" ] ; then
3378     mktemp(){
3379         echo $tempprefix.${HOSTNAME}.${UID}
3380     }
3381 elif ! check_cmd mktemp -u XXXXXX; then
3382     # simple replacement for missing mktemp
3383     # NOT SAFE FOR GENERAL USE
3384     mktemp(){
3385         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3386     }
3387 fi
3388
3389 tmpfile(){
3390     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3391         (set -C; exec > $tmp) 2>/dev/null ||
3392         die "Unable to create temporary file in $TMPDIR."
3393     append TMPFILES $tmp
3394     eval $1=$tmp
3395 }
3396
3397 trap 'rm -f -- $TMPFILES' EXIT
3398
3399 tmpfile TMPASM .asm
3400 tmpfile TMPC   .c
3401 tmpfile TMPCPP .cpp
3402 tmpfile TMPE   $EXESUF
3403 tmpfile TMPH   .h
3404 tmpfile TMPM   .m
3405 tmpfile TMPO   .o
3406 tmpfile TMPS   .S
3407 tmpfile TMPSH  .sh
3408 tmpfile TMPV   .ver
3409
3410 unset -f mktemp
3411
3412 chmod +x $TMPE
3413
3414 # make sure we can execute files in $TMPDIR
3415 cat > $TMPSH 2>> $logfile <<EOF
3416 #! /bin/sh
3417 EOF
3418 chmod +x $TMPSH >> $logfile 2>&1
3419 if ! $TMPSH >> $logfile 2>&1; then
3420     cat <<EOF
3421 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3422 variable to another directory and make sure that it is not mounted noexec.
3423 EOF
3424     die "Sanity test failed."
3425 fi
3426
3427 armasm_flags(){
3428     for flag; do
3429         case $flag in
3430             # Filter out MSVC cl.exe options from cflags that shouldn't
3431             # be passed to gas-preprocessor
3432             -M[TD]*)                                            ;;
3433             *)                  echo $flag                      ;;
3434         esac
3435    done
3436 }
3437
3438 ccc_flags(){
3439     for flag; do
3440         case $flag in
3441             -std=c99)           echo -c99                       ;;
3442             -mcpu=*)            echo -arch ${flag#*=}           ;;
3443             -mieee)             echo -ieee                      ;;
3444             -O*|-fast)          echo $flag                      ;;
3445             -fno-math-errno)    echo -assume nomath_errno       ;;
3446             -g)                 echo -g3                        ;;
3447             -Wall)              echo -msg_enable level2         ;;
3448             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3449             -Wl,*)              echo $flag                      ;;
3450             -f*|-W*)                                            ;;
3451             *)                  echo $flag                      ;;
3452         esac
3453    done
3454 }
3455
3456 cparser_flags(){
3457     for flag; do
3458         case $flag in
3459             -Wno-switch)             echo -Wno-switch-enum ;;
3460             -Wno-format-zero-length) ;;
3461             -Wdisabled-optimization) ;;
3462             -Wno-pointer-sign)       echo -Wno-other ;;
3463             *)                       echo $flag ;;
3464         esac
3465     done
3466 }
3467
3468 msvc_common_flags(){
3469     for flag; do
3470         case $flag in
3471             # In addition to specifying certain flags under the compiler
3472             # specific filters, they must be specified here as well or else the
3473             # generic catch all at the bottom will print the original flag.
3474             -Wall)                ;;
3475             -std=c99)             ;;
3476             # Common flags
3477             -fomit-frame-pointer) ;;
3478             -g)                   echo -Z7 ;;
3479             -fno-math-errno)      ;;
3480             -fno-common)          ;;
3481             -fno-signed-zeros)    ;;
3482             -fPIC)                ;;
3483             -mthumb)              ;;
3484             -march=*)             ;;
3485             -lz)                  echo zlib.lib ;;
3486             -lavifil32)           echo vfw32.lib ;;
3487             -lavicap32)           echo vfw32.lib user32.lib ;;
3488             -l*)                  echo ${flag#-l}.lib ;;
3489             -LARGEADDRESSAWARE)   echo $flag ;;
3490             -L*)                  echo -libpath:${flag#-L} ;;
3491             *)                    echo $flag ;;
3492         esac
3493     done
3494 }
3495
3496 msvc_flags(){
3497     msvc_common_flags "$@"
3498     for flag; do
3499         case $flag in
3500             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3501                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3502                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3503                                        -wd4307 \
3504                                        -wd4273 -wd4554 -wd4701 ;;
3505         esac
3506     done
3507 }
3508
3509 icl_flags(){
3510     msvc_common_flags "$@"
3511     for flag; do
3512         case $flag in
3513             # Despite what Intel's documentation says -Wall, which is supported
3514             # on Windows, does enable remarks so disable them here.
3515             -Wall)                echo $flag -Qdiag-disable:remark ;;
3516             -std=c99)             echo -Qstd=c99 ;;
3517             -flto)                echo -ipo ;;
3518         esac
3519     done
3520 }
3521
3522 icc_flags(){
3523     for flag; do
3524         case $flag in
3525             -flto)                echo -ipo ;;
3526             *)                    echo $flag ;;
3527         esac
3528     done
3529 }
3530
3531 pgi_flags(){
3532     for flag; do
3533         case $flag in
3534             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3535             -fomit-frame-pointer) echo -Mnoframe ;;
3536             -g)                   echo -gopt ;;
3537             *)                    echo $flag ;;
3538         esac
3539     done
3540 }
3541
3542 suncc_flags(){
3543     for flag; do
3544         case $flag in
3545             -march=*|-mcpu=*)
3546                 case "${flag#*=}" in
3547                     native)                   echo -xtarget=native       ;;
3548                     v9|niagara)               echo -xarch=sparc          ;;
3549                     ultrasparc)               echo -xarch=sparcvis       ;;
3550                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3551                     i586|pentium)             echo -xchip=pentium        ;;
3552                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3553                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3554                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3555                     pentium4*)          echo -xtarget=pentium4           ;;
3556                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3557                     *-sse3)             echo -xarch=sse3                 ;;
3558                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3559                     bonnell)                   echo -xarch=ssse3         ;;
3560                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3561                     westmere)                  echo -xtarget=westmere    ;;
3562                     silvermont)                echo -xarch=sse4_2        ;;
3563                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3564                     core-avx*|ivybridge|haswell|broadwell)
3565                                                echo -xarch=avx           ;;
3566                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3567                     btver1)                    echo -xarch=amdsse4a      ;;
3568                     btver2|bdver*)             echo -xarch=avx           ;;
3569                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3570                     k8|opteron|athlon64|athlon-fx)
3571                                                echo -xarch=sse2a         ;;
3572                     athlon*)                   echo -xarch=pentium_proa  ;;
3573                 esac
3574                 ;;
3575             -std=c99)             echo -xc99              ;;
3576             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3577             -fPIC)                echo -KPIC -xcode=pic32 ;;
3578             -W*,*)                echo $flag              ;;
3579             -f*-*|-W*|-mimpure-text)                      ;;
3580             -shared)              echo -G                 ;;
3581             *)                    echo $flag              ;;
3582         esac
3583     done
3584 }
3585
3586 tms470_flags(){
3587     for flag; do
3588         case $flag in
3589             -march=*|-mcpu=*)
3590                 case "${flag#*=}" in
3591                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3592                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3593                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3594                     armv6*|arm11*)          echo -mv=6   ;;
3595                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3596                                             echo -mv=5e  ;;
3597                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3598                 esac
3599                 ;;
3600             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3601             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3602             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3603             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3604             -msoft-float)   echo --float_support=vfplib       ;;
3605             -O[0-3]|-mf=*)  echo $flag                        ;;
3606             -g)             echo -g -mn                       ;;
3607             -pds=*)         echo $flag                        ;;
3608             -D*|-I*)        echo $flag                        ;;
3609             --gcc|--abi=*)  echo $flag                        ;;
3610             -me)            echo $flag                        ;;
3611         esac
3612     done
3613 }
3614
3615 probe_cc(){
3616     pfx=$1
3617     _cc=$2
3618     first=$3
3619
3620     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3621     unset _ld_o _ldflags _ld_lib _ld_path
3622     unset _depflags _DEPCMD _DEPFLAGS
3623     _flags_filter=echo
3624
3625     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3626         true # no-op to avoid reading stdin in following checks
3627     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3628         _type=llvm_gcc
3629         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3630         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3631         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3632         _cflags_speed='-O3'
3633         _cflags_size='-Os'
3634     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3635         _type=gcc
3636         gcc_version=$($_cc --version | head -n1)
3637         gcc_basever=$($_cc -dumpversion)
3638         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3639         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3640         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3641         case $gcc_basever in
3642             2*) ;;
3643             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3644         esac
3645         if [ "$first" = true ]; then
3646             case $gcc_basever in
3647                 4.2*)
3648                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3649             esac
3650         fi
3651         _cflags_speed='-O3'
3652         _cflags_size='-Os'
3653     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3654         _type=icc
3655         _ident=$($_cc --version | head -n1)
3656         _depflags='-MMD'
3657         _cflags_speed='-O3'
3658         _cflags_size='-Os'
3659         _cflags_noopt='-O1'
3660         _flags_filter=icc_flags
3661     elif $_cc -v 2>&1 | grep -q xlc; then
3662         _type=xlc
3663         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3664         _cflags_speed='-O5'
3665         _cflags_size='-O5 -qcompact'
3666     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3667         _type=ccc
3668         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3669         _DEPFLAGS='-M'
3670         _cflags_speed='-fast'
3671         _cflags_size='-O1'
3672         _flags_filter=ccc_flags
3673     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3674         test -d "$sysroot" || die "No valid sysroot specified."
3675         _type=armcc
3676         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3677         armcc_conf="$PWD/armcc.conf"
3678         $_cc --arm_linux_configure                 \
3679              --arm_linux_config_file="$armcc_conf" \
3680              --configure_sysroot="$sysroot"        \
3681              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3682              die "Error creating armcc configuration file."
3683         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3684         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3685         as_default="${cross_prefix}gcc"
3686         _depflags='-MMD'
3687         _cflags_speed='-O3'
3688         _cflags_size='-Os'
3689     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3690         _type=tms470
3691         _ident=$($_cc -version | head -n1 | tr -s ' ')
3692         _flags='--gcc --abi=eabi -me'
3693         _cc_e='-ppl -fe=$@'
3694         _cc_o='-fe=$@'
3695         _depflags='-ppa -ppd=$(@:.o=.d)'
3696         _cflags_speed='-O3 -mf=5'
3697         _cflags_size='-O3 -mf=2'
3698         _flags_filter=tms470_flags
3699     elif $_cc -v 2>&1 | grep -q clang; then
3700         _type=clang
3701         _ident=$($_cc --version 2>/dev/null | head -n1)
3702         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3703         _cflags_speed='-O3'
3704         _cflags_size='-Os'
3705     elif $_cc -V 2>&1 | grep -q Sun; then
3706         _type=suncc
3707         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3708         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3709         _DEPFLAGS='-xM1 -xc99'
3710         _ldflags='-std=c99'
3711         _cflags_speed='-O5'
3712         _cflags_size='-O5 -xspace'
3713         _flags_filter=suncc_flags
3714     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3715         _type=pathscale
3716         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3717         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3718         _cflags_speed='-O2'
3719         _cflags_size='-Os'
3720         _flags_filter='filter_out -Wdisabled-optimization'
3721     elif $_cc -v 2>&1 | grep -q Open64; then
3722         _type=open64
3723         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3724         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3725         _cflags_speed='-O2'
3726         _cflags_size='-Os'
3727         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3728     elif $_cc -V 2>&1 | grep -q Portland; then
3729         _type=pgi
3730         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3731         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3732         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3733         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3734         _cflags_noopt="-O"
3735         _flags_filter=pgi_flags
3736     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3737         _type=armasm
3738         _ident=$($_cc | head -n1)
3739         # 4509: "This form of conditional instruction is deprecated"
3740         _flags="-nologo -ignore 4509"
3741         _flags_filter=armasm_flags
3742     elif $_cc 2>&1 | grep -q Intel; then
3743         _type=icl
3744         _ident=$($_cc 2>&1 | head -n1)
3745         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3746         # Not only is O3 broken on 13.x+ but it is slower on all previous
3747         # versions (tested) as well.
3748         _cflags_speed="-O2"
3749         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3750         if $_cc 2>&1 | grep -q Linker; then
3751             _ld_o='-out:$@'
3752         else
3753             _ld_o='-Fe$@'
3754         fi
3755         _cc_o='-Fo$@'
3756         _cc_e='-P'
3757         _flags_filter=icl_flags
3758         _ld_lib='lib%.a'
3759         _ld_path='-libpath:'
3760         # -Qdiag-error to make icl error when seeing certain unknown arguments
3761         _flags='-nologo -Qdiag-error:4044,10157'
3762         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3763         # with MSVC which enables it by default.
3764         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3765         disable stripping
3766     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3767         _type=msvc
3768         _ident=$($_cc 2>&1 | head -n1)
3769         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3770         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3771         _cflags_speed="-O2"
3772         _cflags_size="-O1"
3773         if $_cc -nologo- 2>&1 | grep -q Linker; then
3774             _ld_o='-out:$@'
3775         else
3776             _ld_o='-Fe$@'
3777         fi
3778         _cc_o='-Fo$@'
3779         _cc_e='-P -Fi$@'
3780         _flags_filter=msvc_flags
3781         _ld_lib='lib%.a'
3782         _ld_path='-libpath:'
3783         _flags='-nologo'
3784         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3785         disable stripping
3786     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3787         _type=cparser
3788         _ident=$($_cc --version | head -n1)
3789         _depflags='-MMD'
3790         _cflags_speed='-O4'
3791         _cflags_size='-O2'
3792         _flags_filter=cparser_flags
3793     fi
3794
3795     eval ${pfx}_type=\$_type
3796     eval ${pfx}_ident=\$_ident
3797 }
3798
3799 set_ccvars(){
3800     eval ${1}_C=\${_cc_c-\${${1}_C}}
3801     eval ${1}_E=\${_cc_e-\${${1}_E}}
3802     eval ${1}_O=\${_cc_o-\${${1}_O}}
3803
3804     if [ -n "$_depflags" ]; then
3805         eval ${1}_DEPFLAGS=\$_depflags
3806     else
3807         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3808         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3809         eval DEP${1}FLAGS=\$_flags
3810     fi
3811 }
3812
3813 probe_cc cc "$cc" "true"
3814 cflags_filter=$_flags_filter
3815 cflags_speed=$_cflags_speed
3816 cflags_size=$_cflags_size
3817 cflags_noopt=$_cflags_noopt
3818 add_cflags $_flags $_cflags
3819 cc_ldflags=$_ldflags
3820 set_ccvars CC
3821
3822 probe_cc hostcc "$host_cc"
3823 host_cflags_filter=$_flags_filter
3824 add_host_cflags  $_flags $_cflags
3825 set_ccvars HOSTCC
3826
3827 test -n "$cc_type" && enable $cc_type ||
3828     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3829
3830 : ${as_default:=$cc}
3831 : ${dep_cc_default:=$cc}
3832 : ${ld_default:=$cc}
3833 : ${host_ld_default:=$host_cc}
3834 set_default ar as dep_cc ld host_ld windres
3835
3836 probe_cc as "$as"
3837 asflags_filter=$_flags_filter
3838 add_asflags $_flags $_cflags
3839 set_ccvars AS
3840
3841 probe_cc ld "$ld"
3842 ldflags_filter=$_flags_filter
3843 add_ldflags $_flags $_ldflags
3844 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3845 LD_O=${_ld_o-$LD_O}
3846 LD_LIB=${_ld_lib-$LD_LIB}
3847 LD_PATH=${_ld_path-$LD_PATH}
3848
3849 probe_cc hostld "$host_ld"
3850 host_ldflags_filter=$_flags_filter
3851 add_host_ldflags $_flags $_ldflags
3852 HOSTLD_O=${_ld_o-$HOSTLD_O}
3853
3854 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3855     probe_cc depcc "$dep_cc"
3856     CCDEP=${_DEPCMD:-$DEPCMD}
3857     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3858     DEPCCFLAGS=$_flags
3859 fi
3860
3861 if $ar 2>&1 | grep -q Microsoft; then
3862     arflags="-nologo"
3863     ar_o='-out:$@'
3864 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3865     arflags="rq"
3866     ar_o='$@'
3867 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3868     arflags='-Xany -r -c'
3869     ar_o='$@'
3870 elif $ar 2>&1 | grep -q "\[D\] "; then
3871     arflags="rcD"
3872     ar_o='$@'
3873 else
3874     arflags="rc"
3875     ar_o='$@'
3876 fi
3877
3878 add_cflags $extra_cflags
3879 add_cxxflags $extra_cxxflags
3880 add_asflags $extra_cflags
3881
3882 if test -n "$sysroot"; then
3883     case "$cc_type" in
3884         gcc|llvm_gcc|clang)
3885             add_cppflags --sysroot="$sysroot"
3886             add_ldflags --sysroot="$sysroot"
3887 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3888             add_cppflags -isysroot "$sysroot"
3889             add_ldflags -isysroot "$sysroot"
3890         ;;
3891         tms470)
3892             add_cppflags -I"$sysinclude"
3893             add_ldflags  --sysroot="$sysroot"
3894         ;;
3895     esac
3896 fi
3897
3898 if test "$cpu" = host; then
3899     enabled cross_compile &&
3900         die "--cpu=host makes no sense when cross-compiling."
3901
3902     case "$cc_type" in
3903         gcc|llvm_gcc)
3904             check_native(){
3905                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3906                 sed -n "/cc1.*$1=/{
3907                             s/.*$1=\\([^ ]*\\).*/\\1/
3908                             p
3909                             q
3910                         }" $TMPE
3911             }
3912             cpu=$(check_native -march || check_native -mcpu)
3913         ;;
3914     esac
3915
3916     test "${cpu:-host}" = host &&
3917         die "--cpu=host not supported with compiler $cc"
3918 fi
3919
3920 # Deal with common $arch aliases
3921 case "$arch" in
3922     aarch64|arm64)
3923         arch="aarch64"
3924     ;;
3925     arm*|iPad*|iPhone*)
3926         arch="arm"
3927     ;;
3928     mips*|IP*)
3929         arch="mips"
3930     ;;
3931     parisc*|hppa*)
3932         arch="parisc"
3933     ;;
3934     "Power Macintosh"|ppc*|powerpc*)
3935         arch="ppc"
3936     ;;
3937     s390|s390x)
3938         arch="s390"
3939     ;;
3940     sh4|sh)
3941         arch="sh4"
3942     ;;
3943     sun4u|sparc*)
3944         arch="sparc"
3945     ;;
3946     tilegx|tile-gx)
3947         arch="tilegx"
3948     ;;
3949     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3950         arch="x86"
3951     ;;
3952 esac
3953
3954 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3955 enable $arch
3956
3957 # Add processor-specific flags
3958 if enabled aarch64; then
3959
3960     case $cpu in
3961         armv*)
3962             cpuflags="-march=$cpu"
3963         ;;
3964         *)
3965             cpuflags="-mcpu=$cpu"
3966         ;;
3967     esac
3968
3969 elif enabled alpha; then
3970
3971     cpuflags="-mcpu=$cpu"
3972
3973 elif enabled arm; then
3974
3975     check_arm_arch() {
3976         check_cpp_condition stddef.h \
3977             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3978             $cpuflags
3979     }
3980
3981     probe_arm_arch() {
3982         if   check_arm_arch 4;        then echo armv4;
3983         elif check_arm_arch 4T;       then echo armv4t;
3984         elif check_arm_arch 5;        then echo armv5;
3985         elif check_arm_arch 5E;       then echo armv5e;
3986         elif check_arm_arch 5T;       then echo armv5t;
3987         elif check_arm_arch 5TE;      then echo armv5te;
3988         elif check_arm_arch 5TEJ;     then echo armv5te;
3989         elif check_arm_arch 6;        then echo armv6;
3990         elif check_arm_arch 6J;       then echo armv6j;
3991         elif check_arm_arch 6K;       then echo armv6k;
3992         elif check_arm_arch 6Z;       then echo armv6z;
3993         elif check_arm_arch 6ZK;      then echo armv6zk;
3994         elif check_arm_arch 6T2;      then echo armv6t2;
3995         elif check_arm_arch 7;        then echo armv7;
3996         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3997         elif check_arm_arch 7S;       then echo armv7-a;
3998         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3999         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4000         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4001         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4002         fi
4003     }
4004
4005     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4006
4007     case $cpu in
4008         armv*)
4009             cpuflags="-march=$cpu"
4010             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4011         ;;
4012         *)
4013             cpuflags="-mcpu=$cpu"
4014             case $cpu in
4015                 cortex-a*)                               subarch=armv7a  ;;
4016                 cortex-r*)                               subarch=armv7r  ;;
4017                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4018                 arm11*)                                  subarch=armv6   ;;
4019                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4020                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4021                 *)                             subarch=$(probe_arm_arch) ;;
4022             esac
4023         ;;
4024     esac
4025
4026     case "$subarch" in
4027         armv5t*)    enable fast_clz                ;;
4028         armv[6-8]*)
4029             enable fast_clz
4030             disabled fast_unaligned || enable fast_unaligned
4031             ;;
4032     esac
4033
4034 elif enabled avr32; then
4035
4036     case $cpu in
4037         ap7[02]0[0-2])
4038             subarch="avr32_ap"
4039             cpuflags="-mpart=$cpu"
4040         ;;
4041         ap)
4042             subarch="avr32_ap"
4043             cpuflags="-march=$cpu"
4044         ;;
4045         uc3[ab]*)
4046             subarch="avr32_uc"
4047             cpuflags="-mcpu=$cpu"
4048         ;;
4049         uc)
4050             subarch="avr32_uc"
4051             cpuflags="-march=$cpu"
4052         ;;
4053     esac
4054
4055 elif enabled bfin; then
4056
4057     cpuflags="-mcpu=$cpu"
4058
4059 elif enabled mips; then
4060
4061     cpuflags="-march=$cpu"
4062
4063     case $cpu in
4064         24kc)
4065             disable mips32r5
4066             disable mips64r6
4067             disable mipsfpu
4068             disable mipsdspr1
4069             disable mipsdspr2
4070             disable msa
4071         ;;
4072         24kf*)
4073             disable mips32r5
4074             disable mips64r6
4075             disable mipsdspr1
4076             disable mipsdspr2
4077             disable msa
4078         ;;
4079         24kec|34kc|1004kc)
4080             disable mips32r5
4081             disable mips64r6
4082             disable mipsfpu
4083             disable mipsdspr2
4084             disable msa
4085         ;;
4086         24kef*|34kf*|1004kf*)
4087             disable mips32r5
4088             disable mips64r6
4089             disable mipsdspr2
4090             disable msa
4091         ;;
4092         74kc)
4093             disable mips32r5
4094             disable mips64r6
4095             disable mipsfpu
4096             disable msa
4097         ;;
4098         74kf)
4099             disable mips32r5
4100             disable mips64r6
4101             disable msa
4102         ;;
4103         p5600)
4104             disable mips64r6
4105             disable mipsdspr1
4106             disable mipsdspr2
4107
4108             check_cflags "-mtune=p5600"
4109         ;;
4110         i6400)
4111             disable mips32r5
4112             disable mipsdspr1
4113             disable mipsdspr2
4114             disable mipsfpu
4115
4116             check_cflags "-mtune=i6400 -mabi=64"
4117             check_ldflags "-mabi=64"
4118         ;;
4119         loongson*)
4120             disable mipsfpu
4121             disable mips32r2
4122             disable mips32r5
4123             disable mips64r6
4124             disable mipsdspr1
4125             disable mipsdspr2
4126             disable msa
4127             enable local_aligned_8 local_aligned_16 local_aligned_32
4128             enable simd_align_16
4129             enable fast_64bit
4130             enable fast_clz
4131             enable fast_cmov
4132             enable fast_unaligned
4133             disable aligned_stack
4134             case $cpu in
4135                 loongson3*)
4136                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4137                 ;;
4138                 loongson2e)
4139                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4140                 ;;
4141                 loongson2f)
4142                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4143                 ;;
4144             esac
4145         ;;
4146         generic)
4147             disable mips32r5
4148             disable mips64r6
4149             disable msa
4150         ;;
4151         *)
4152             disable mipsfpu
4153             disable mips32r2
4154             disable mips32r5
4155             disable mips64r6
4156             disable mipsdspr1
4157             disable mipsdspr2
4158             disable msa
4159         ;;
4160     esac
4161
4162 elif enabled ppc; then
4163
4164     disable ldbrx
4165
4166     case $(tolower $cpu) in
4167         601|ppc601|powerpc601)
4168             cpuflags="-mcpu=601"
4169             disable altivec
4170         ;;
4171         603*|ppc603*|powerpc603*)
4172             cpuflags="-mcpu=603"
4173             disable altivec
4174         ;;
4175         604*|ppc604*|powerpc604*)
4176             cpuflags="-mcpu=604"
4177             disable altivec
4178         ;;
4179         g3|75*|ppc75*|powerpc75*)
4180             cpuflags="-mcpu=750"
4181             disable altivec
4182         ;;
4183         g4|745*|ppc745*|powerpc745*)
4184             cpuflags="-mcpu=7450"
4185             disable vsx
4186         ;;
4187         74*|ppc74*|powerpc74*)
4188             cpuflags="-mcpu=7400"
4189             disable vsx
4190         ;;
4191         g5|970|ppc970|powerpc970)
4192             cpuflags="-mcpu=970"
4193             disable vsx
4194         ;;
4195         power[3-6]*)
4196             cpuflags="-mcpu=$cpu"
4197             disable vsx
4198         ;;
4199         power[7-8]*)
4200             cpuflags="-mcpu=$cpu"
4201         ;;
4202         cell)
4203             cpuflags="-mcpu=cell"
4204             enable ldbrx
4205             disable vsx
4206         ;;
4207         e500mc)
4208             cpuflags="-mcpu=e500mc"
4209             disable altivec
4210         ;;
4211         e500v2)
4212             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4213             disable altivec
4214             disable dcbzl
4215         ;;
4216         e500)
4217             cpuflags="-mcpu=8540 -mhard-float"
4218             disable altivec
4219             disable dcbzl
4220         ;;
4221     esac
4222
4223 elif enabled sparc; then
4224
4225     case $cpu in
4226         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4227             cpuflags="-mcpu=$cpu"
4228         ;;
4229         ultrasparc*|niagara[234])
4230             cpuflags="-mcpu=$cpu"
4231         ;;
4232     esac
4233
4234 elif enabled x86; then
4235
4236     case $cpu in
4237         i[345]86|pentium)
4238             cpuflags="-march=$cpu"
4239             disable i686
4240             disable mmx
4241         ;;
4242         # targets that do NOT support nopl and conditional mov (cmov)
4243         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4244             cpuflags="-march=$cpu"
4245             disable i686
4246         ;;
4247         # targets that do support nopl and conditional mov (cmov)
4248         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4249         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4250             cpuflags="-march=$cpu"
4251             enable i686
4252             enable fast_cmov
4253         ;;
4254         # targets that do support conditional mov but on which it's slow
4255         pentium4|pentium4m|prescott|nocona)
4256             cpuflags="-march=$cpu"
4257             enable i686
4258             disable fast_cmov
4259         ;;
4260     esac
4261
4262 fi
4263
4264 if [ "$cpu" != generic ]; then
4265     add_cflags  $cpuflags
4266     add_asflags $cpuflags
4267     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4268 fi
4269
4270 # compiler sanity check
4271 check_exec <<EOF
4272 int main(void){ return 0; }
4273 EOF
4274 if test "$?" != 0; then
4275     echo "$cc is unable to create an executable file."
4276     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4277         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4278         echo "Only do this if you know what cross compiling means."
4279     fi
4280     die "C compiler test failed."
4281 fi
4282
4283 add_cppflags -D_ISOC99_SOURCE
4284 add_cxxflags -D__STDC_CONSTANT_MACROS
4285 check_cflags -std=c99
4286 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4287 #include <stdlib.h>
4288 EOF
4289 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4290 #include <stdlib.h>
4291 EOF
4292
4293 add_host_cppflags -D_ISOC99_SOURCE
4294 check_host_cflags -std=c99
4295 check_host_cflags -Wall
4296 check_host_cflags -O3
4297
4298 check_64bit(){
4299     arch32=$1
4300     arch64=$2
4301     expr=$3
4302     check_code cc "" "int test[2*($expr) - 1]" &&
4303         subarch=$arch64 || subarch=$arch32
4304 }
4305
4306 case "$arch" in
4307     aarch64|alpha|ia64)
4308         spic=$shared
4309     ;;
4310     mips)
4311         check_64bit mips mips64 '_MIPS_SIM > 1'
4312         spic=$shared
4313     ;;
4314     parisc)
4315         check_64bit parisc parisc64 'sizeof(void *) > 4'
4316         spic=$shared
4317     ;;
4318     ppc)
4319         check_64bit ppc ppc64 'sizeof(void *) > 4'
4320         spic=$shared
4321     ;;
4322     s390)
4323         check_64bit s390 s390x 'sizeof(void *) > 4'
4324         spic=$shared
4325     ;;
4326     sparc)
4327         check_64bit sparc sparc64 'sizeof(void *) > 4'
4328         spic=$shared
4329     ;;
4330     x86)
4331         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4332         # Treat x32 as x64 for now. Note it also needs spic=$shared
4333         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4334             subarch=x86_64
4335         if test "$subarch" = "x86_64"; then
4336             spic=$shared
4337         fi
4338     ;;
4339     ppc)
4340         check_cc <<EOF && subarch="ppc64"
4341         int test[(int)sizeof(char*) - 7];
4342 EOF
4343     ;;
4344 esac
4345
4346 enable $subarch
4347 enabled spic && enable_weak pic
4348
4349 # OS specific
4350 case $target_os in
4351     aix)
4352         SHFLAGS=-shared
4353         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4354         enabled shared && add_ldflags -Wl,-brtl
4355         ;;
4356     android)
4357         disable symver
4358         enable section_data_rel_ro
4359         SLIB_INSTALL_NAME='$(SLIBNAME)'
4360         SLIB_INSTALL_LINKS=
4361         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4362         ;;
4363     haiku)
4364         prefix_default="/boot/common"
4365         network_extralibs="-lnetwork"
4366         host_libs=
4367         ;;
4368     sunos)
4369         SHFLAGS='-shared -Wl,-h,$$(@F)'
4370         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4371         network_extralibs="-lsocket -lnsl"
4372         add_cppflags -D__EXTENSIONS__
4373         # When using suncc to build, the Solaris linker will mark
4374         # an executable with each instruction set encountered by
4375         # the Solaris assembler.  As our libraries contain their own
4376         # guards for processor-specific code, instead suppress
4377         # generation of the HWCAPS ELF section on Solaris x86 only.
4378         enabled_all suncc x86 &&
4379             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4380             add_ldflags -Wl,-M,mapfile
4381         nm_default='nm -P -g'
4382         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4383         ;;
4384     netbsd)
4385         disable symver
4386         oss_indev_extralibs="-lossaudio"
4387         oss_outdev_extralibs="-lossaudio"
4388         enabled gcc || check_ldflags -Wl,-zmuldefs
4389         ;;
4390     openbsd|bitrig)
4391         disable symver
4392         SHFLAGS='-shared'
4393         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4394         SLIB_INSTALL_LINKS=
4395         oss_indev_extralibs="-lossaudio"
4396         oss_outdev_extralibs="-lossaudio"
4397         ;;
4398     dragonfly)
4399         disable symver
4400         ;;
4401     freebsd)
4402         ;;
4403     bsd/os)
4404         add_extralibs -lpoll -lgnugetopt
4405         strip="strip -d"
4406         ;;
4407     darwin)
4408         enabled ppc && add_asflags -force_cpusubtype_ALL
4409         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4410         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4411         strip="${strip} -x"
4412         add_ldflags -Wl,-dynamic,-search_paths_first
4413         SLIBSUF=".dylib"
4414         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4415         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4416         objformat="macho"
4417         enabled x86_64 && objformat="macho64"
4418         enabled_any pic shared x86_64 ||
4419             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4420         ;;
4421     msys*)
4422         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4423         ;;
4424     mingw32*|mingw64*)
4425         if test $target_os = "mingw32ce"; then
4426             disable network
4427         else
4428             target_os=mingw32
4429         fi
4430         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4431         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4432         LIBTARGET=i386
4433         if enabled x86_64; then
4434             LIBTARGET="i386:x86-64"
4435         elif enabled arm; then
4436             LIBTARGET=arm-wince
4437         fi
4438         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4439         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4440         shlibdir_default="$bindir_default"
4441         SLIBPREF=""
4442         SLIBSUF=".dll"
4443         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4444         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4445         dlltool="${cross_prefix}dlltool"
4446         if check_cmd lib.exe -list; then
4447             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4448             if enabled x86_64; then
4449                 LIBTARGET=x64
4450             fi
4451         elif check_cmd $dlltool --version; then
4452             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4453         fi
4454         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4455         SLIB_INSTALL_LINKS=
4456         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4457         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4458         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4459         objformat="win32"
4460         ranlib=:
4461         enable dos_paths
4462         check_ldflags -Wl,--nxcompat,--dynamicbase
4463         # Lets work around some stupidity in binutils.
4464         # ld will strip relocations from executables even though we need them
4465         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4466         # however ld then forgets what the entry point should be (oops) so we
4467         # have to manually (re)set it.
4468         if enabled x86_32; then
4469             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4470         elif enabled x86_64; then
4471             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4472             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4473             # Set image base >4GB for extra entropy with HEASLR
4474             add_ldexeflags -Wl,--image-base,0x140000000
4475             append SHFLAGS -Wl,--image-base,0x180000000
4476         fi
4477         ;;
4478     win32|win64)
4479         disable symver
4480         if enabled shared; then
4481             # Link to the import library instead of the normal static library
4482             # for shared libs.
4483             LD_LIB='%.lib'
4484             # Cannot build both shared and static libs with MSVC or icl.
4485             disable static
4486         fi
4487         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4488         shlibdir_default="$bindir_default"
4489         SLIBPREF=""
4490         SLIBSUF=".dll"
4491         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4492         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4493         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4494         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4495         SLIB_INSTALL_LINKS=
4496         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4497         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4498         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4499         objformat="win32"
4500         ranlib=:
4501         enable dos_paths
4502         ;;
4503     cygwin*)
4504         target_os=cygwin
4505         shlibdir_default="$bindir_default"
4506         SLIBPREF="cyg"
4507         SLIBSUF=".dll"
4508         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4509         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4510         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4511         SLIB_INSTALL_LINKS=
4512         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4513         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4514         objformat="win32"
4515         enable dos_paths
4516         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4517         ;;
4518     *-dos|freedos|opendos)
4519         network_extralibs="-lsocket"
4520         objformat="coff"
4521         enable dos_paths
4522         add_cppflags -U__STRICT_ANSI__
4523         ;;
4524     linux)
4525         enable dv1394
4526         enable section_data_rel_ro
4527         ;;
4528     irix*)
4529         target_os=irix
4530         ranlib="echo ignoring ranlib"
4531         ;;
4532     os/2*)
4533         strip="lxlite -CS"
4534         ln_s="cp -f"
4535         objformat="aout"
4536         add_cppflags -D_GNU_SOURCE
4537         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4538         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4539         LIBSUF="_s.a"
4540         SLIBPREF=""
4541         SLIBSUF=".dll"
4542         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4543         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4544         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4545             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4546             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4547             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4548             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4549         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4550             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4551         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4552         enable dos_paths
4553         enable_weak os2threads
4554         ;;
4555     gnu/kfreebsd)
4556         add_cppflags -D_BSD_SOURCE
4557         ;;
4558     gnu)
4559         ;;
4560     qnx)
4561         add_cppflags -D_QNX_SOURCE
4562         network_extralibs="-lsocket"
4563         ;;
4564     symbian)
4565         SLIBSUF=".dll"
4566         enable dos_paths
4567         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4568         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4569         add_ldflags -Wl,--target1-abs,--no-undefined \
4570                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4571                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4572         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4573                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4574                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4575         ;;
4576     osf1)
4577         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4578         ;;
4579     minix)
4580         ;;
4581     plan9)
4582         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4583                      -D_REENTRANT_SOURCE        \
4584                      -D_RESEARCH_SOURCE         \
4585                      -DFD_SETSIZE=96            \
4586                      -DHAVE_SOCK_OPTS
4587         add_compat strtod.o strtod=avpriv_strtod
4588         network_extralibs='-lbsd'
4589         exeobjs=compat/plan9/main.o
4590         disable ffserver
4591         cp_f='cp'
4592         ;;
4593     none)
4594         ;;
4595     *)
4596         die "Unknown OS '$target_os'."
4597         ;;
4598 esac
4599
4600 # determine libc flavour
4601
4602 probe_libc(){
4603     pfx=$1
4604     pfx_no_=${pfx%_}
4605     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4606     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4607         eval ${pfx}libc_type=uclibc
4608         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4609     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4610         eval ${pfx}libc_type=glibc
4611         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4612     # MinGW headers can be installed on Cygwin, so check for newlib first.
4613     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4614         eval ${pfx}libc_type=newlib
4615         add_${pfx}cppflags -U__STRICT_ANSI__
4616     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4617     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4618         eval ${pfx}libc_type=mingw64
4619         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4620             add_compat msvcrt/snprintf.o
4621             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4622         fi
4623         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4624         eval test \$${pfx_no_}cc_type = "gcc" &&
4625             add_${pfx}cppflags -D__printf__=__gnu_printf__
4626     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4627          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4628         eval ${pfx}libc_type=mingw32
4629         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4630             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4631             die "ERROR: MinGW32 runtime version must be >= 3.15."
4632         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4633         eval test \$${pfx_no_}cc_type = "gcc" &&
4634             add_${pfx}cppflags -D__printf__=__gnu_printf__
4635     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4636         eval ${pfx}libc_type=msvcrt
4637         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4638             if [ "$pfx" = host_ ]; then
4639                 add_host_cppflags -Dsnprintf=_snprintf
4640             else
4641                 add_compat strtod.o strtod=avpriv_strtod
4642                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4643                                              _snprintf=avpriv_snprintf  \
4644                                              vsnprintf=avpriv_vsnprintf
4645             fi
4646         fi
4647         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4648         # 0x601 by default unless something else is set by the user.
4649         # This can easily lead to us detecting functions only present
4650         # in such new versions and producing binaries requiring windows 7.0.
4651         # Therefore explicitly set the default to XP unless the user has
4652         # set something else on the command line.
4653         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4654         # family. For these cases, configure is free to use any functions
4655         # found in the SDK headers by default. (Alternatively, we could force
4656         # _WIN32_WINNT to 0x0602 in that case.)
4657         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4658             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4659 #ifdef WINAPI_FAMILY
4660 #include <winapifamily.h>
4661 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4662 #error not desktop
4663 #endif
4664 #endif
4665 EOF
4666     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4667         eval ${pfx}libc_type=klibc
4668     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4669         eval ${pfx}libc_type=bionic
4670     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4671         eval ${pfx}libc_type=solaris
4672         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4673     fi
4674     check_${pfx}cc <<EOF
4675 #include <time.h>
4676 void *v = localtime_r;
4677 EOF
4678 test "$?" != 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
4679 #include <time.h>
4680 void *v = localtime_r;
4681 EOF
4682
4683 }
4684
4685 probe_libc
4686 test -n "$libc_type" && enable libc_$libc_type
4687 probe_libc host_
4688 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4689
4690 case $libc_type in
4691     bionic)
4692         add_compat strtod.o strtod=avpriv_strtod
4693         ;;
4694 esac
4695
4696 # hacks for compiler/libc/os combinations
4697
4698 if enabled_all tms470 libc_glibc; then
4699     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4700     add_cppflags -D__USER_LABEL_PREFIX__=
4701     add_cppflags -D__builtin_memset=memset
4702     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4703     add_cflags   -pds=48    # incompatible redefinition of macro
4704 fi
4705
4706 if enabled_all ccc libc_glibc; then
4707     add_ldflags -Wl,-z,now  # calls to libots crash without this
4708 fi
4709
4710 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4711     add_cppflags '-I\$(SRC_PATH)/compat/float'
4712
4713 esc(){
4714     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4715 }
4716
4717 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4718
4719 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4720
4721 set_default libdir
4722 : ${shlibdir_default:="$libdir"}
4723 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4724
4725 set_default $PATHS_LIST
4726 set_default nm
4727
4728 # we need to build at least one lib type
4729 if ! enabled_any static shared; then
4730     cat <<EOF
4731 At least one library type must be built.
4732 Specify --enable-static to build the static libraries or --enable-shared to
4733 build the shared libraries as well. To only build the shared libraries specify
4734 --disable-static in addition to --enable-shared.
4735 EOF
4736     exit 1;
4737 fi
4738
4739 die_license_disabled() {
4740     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4741 }
4742
4743 die_license_disabled_gpl() {
4744     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4745 }
4746
4747 die_license_disabled gpl frei0r
4748 die_license_disabled gpl libcdio
4749 die_license_disabled gpl librubberband
4750 die_license_disabled gpl libsmbclient
4751 die_license_disabled gpl libutvideo
4752 die_license_disabled gpl libvidstab
4753 die_license_disabled gpl libx264
4754 die_license_disabled gpl libx265
4755 die_license_disabled gpl libxavs
4756 die_license_disabled gpl libxvid
4757 die_license_disabled gpl libzvbi
4758 die_license_disabled gpl x11grab
4759
4760 die_license_disabled nonfree libaacplus
4761 die_license_disabled nonfree libfaac
4762 die_license_disabled nonfree nvenc
4763 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4764 enabled gpl && die_license_disabled_gpl nonfree openssl
4765
4766 die_license_disabled version3 libopencore_amrnb
4767 die_license_disabled version3 libopencore_amrwb
4768 die_license_disabled version3 libsmbclient
4769 die_license_disabled version3 libvo_aacenc
4770 die_license_disabled version3 libvo_amrwbenc
4771
4772 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4773
4774 disabled optimizations || check_cflags -fomit-frame-pointer
4775
4776 enable_weak_pic() {
4777     disabled pic && return
4778     enable pic
4779     add_cppflags -DPIC
4780     case "$target_os" in
4781     mingw*|cygwin*)
4782         ;;
4783     *)
4784         add_cflags -fPIC
4785         ;;
4786     esac
4787     add_asflags  -fPIC
4788 }
4789
4790 enabled pic && enable_weak_pic
4791
4792 check_cc <<EOF || die "Symbol mangling check failed."
4793 int ff_extern;
4794 EOF
4795 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4796 extern_prefix=${sym%%ff_extern*}
4797
4798 check_cc <<EOF && enable_weak inline_asm
4799 void foo(void) { __asm__ volatile ("" ::); }
4800 EOF
4801
4802 _restrict=
4803 for restrict_keyword in restrict __restrict__ __restrict; do
4804     check_cc <<EOF && _restrict=$restrict_keyword && break
4805 void foo(char * $restrict_keyword p);
4806 EOF
4807 done
4808
4809 check_cc <<EOF && enable pragma_deprecated
4810 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4811 EOF
4812
4813 check_cc <<EOF && enable attribute_packed
4814 struct { int x; } __attribute__((packed)) x;
4815 EOF
4816
4817 check_cc <<EOF && enable attribute_may_alias
4818 union { int x; } __attribute__((may_alias)) x;
4819 EOF
4820
4821 check_cc <<EOF || die "endian test failed"
4822 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4823 EOF
4824 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4825
4826 if ! enabled ppc64 || enabled bigendian; then
4827     disable vsx
4828 fi
4829
4830 check_gas() {
4831     log "check_gas using '$as' as AS"
4832     # :vararg is used on aarch64, arm and ppc altivec
4833     check_as <<EOF || return 1
4834 .macro m n, y:vararg=0
4835 \n: .int \y
4836 .endm
4837 m x
4838 EOF
4839     # .altmacro is only used in arm asm
4840     ! enabled arm || check_as <<EOF || return 1
4841 .altmacro
4842 EOF
4843     enable gnu_as
4844     return 0
4845 }
4846
4847 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4848     nogas=:
4849     enabled_any arm aarch64 && nogas=die
4850     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4851     as_noop=-v
4852
4853     case $as_type in
4854         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4855         gcc)  gaspp_as_type=gas ;;
4856         *)    gaspp_as_type=$as_type ;;
4857     esac
4858
4859     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4860
4861     test "${as#*gas-preprocessor.pl}" != "$as" ||
4862     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4863         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4864
4865     if ! check_gas ; then
4866         as=${gas:=$as}
4867         check_gas || \
4868             $nogas "GNU assembler not found, install/update gas-preprocessor"
4869     fi
4870
4871     check_as <<EOF && enable as_func
4872 .func test
4873 .endfunc
4874 EOF
4875 fi
4876
4877 check_inline_asm inline_asm_labels '"1:\n"'
4878
4879 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4880
4881 if enabled aarch64; then
4882     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4883     # internal assembler in clang 3.3 does not support this instruction
4884     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4885     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4886
4887     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4888
4889 elif enabled alpha; then
4890
4891     check_cflags -mieee
4892
4893 elif enabled arm; then
4894
4895     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4896
4897     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4898 float func(float a, float b){ return a+b; }
4899 EOF
4900
4901     enabled thumb && check_cflags -mthumb || check_cflags -marm
4902
4903     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4904         enable vfp_args
4905     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4906         enable vfp_args
4907     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4908         case "${cross_prefix:-$cc}" in
4909             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4910             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4911 __asm__ (".eabi_attribute 28, 1");
4912 int main(void) { return 0; }
4913 EOF
4914         esac
4915         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4916     fi
4917
4918     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4919     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4920     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4921     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4922     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4923     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4924     enabled setend  && check_insn setend  'setend be'
4925
4926     [ $target_os = linux ] || [ $target_os = android ] ||
4927         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4928             $ARCH_EXT_LIST_ARM
4929
4930     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4931
4932     check_as <<EOF && enable as_dn_directive
4933 ra .dn d0.i16
4934 .unreq ra
4935 EOF
4936
4937     # llvm's integrated assembler supports .object_arch from llvm 3.5
4938     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4939 .object_arch armv4
4940 EOF
4941
4942     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4943
4944 elif enabled mips; then
4945
4946     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
4947     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
4948     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
4949
4950     # Enable minimum ISA based on selected options
4951     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then
4952         add_cflags "-mips64r2"
4953         add_asflags "-mips64r2"
4954     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
4955         add_cflags "-mips64"
4956         add_asflags "-mips64"
4957     elif enabled mipsdspr1 || enabled mipsdspr2; then
4958         add_cflags "-mips32r2 -mfp32"
4959         add_asflags "-mips32r2 -mfp32"
4960     elif enabled mips32r5 || enabled mips64r6; then
4961         check_cflags "-mfp64"
4962         check_ldflags "-mfp64"
4963     fi
4964
4965     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&
4966      check_ldflags "-mips32r5" &&
4967      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'
4968     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&
4969      check_ldflags "-mips64r6" &&
4970      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'
4971     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4972      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4973     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4974      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4975     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4976      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4977     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
4978      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
4979
4980     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"
4981     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"
4982     enabled msa && add_asflags "-mmsa"
4983
4984 elif enabled parisc; then
4985
4986     if enabled gcc; then
4987         case $($cc -dumpversion) in
4988             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4989         esac
4990     fi
4991
4992 elif enabled ppc; then
4993
4994     enable local_aligned_8 local_aligned_16 local_aligned_32
4995
4996     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4997     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4998     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4999     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
5000
5001     # AltiVec flags: The FSF version of GCC differs from the Apple version
5002     if enabled altivec; then
5003         check_cflags -maltivec -mabi=altivec &&
5004         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
5005         check_cflags -faltivec
5006
5007         # check if our compiler supports Motorola AltiVec C API
5008         check_cc <<EOF || disable altivec
5009 $inc_altivec_h
5010 int main(void) {
5011     vector signed int v1 = (vector signed int) { 0 };
5012     vector signed int v2 = (vector signed int) { 1 };
5013     v1 = vec_add(v1, v2);
5014     return 0;
5015 }
5016 EOF
5017
5018         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
5019     fi
5020
5021     if enabled vsx; then
5022         check_cflags -mvsx &&
5023         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
5024     fi
5025
5026     if enabled power8; then
5027         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
5028     fi
5029
5030 elif enabled x86; then
5031
5032     check_builtin rdtsc    intrin.h   "__rdtsc()"
5033     check_builtin mm_empty mmintrin.h "_mm_empty()"
5034
5035     enable local_aligned_8 local_aligned_16 local_aligned_32
5036
5037     # check whether EBP is available on x86
5038     # As 'i' is stored on the stack, this program will crash
5039     # if the base pointer is used to access it because the
5040     # base pointer is cleared in the inline assembly code.
5041     check_exec_crash <<EOF && enable ebp_available
5042 volatile int i=0;
5043 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
5044 return i;
5045 EOF
5046
5047     # check whether EBX is available on x86
5048     check_inline_asm ebx_available '""::"b"(0)' &&
5049         check_inline_asm ebx_available '"":::"%ebx"'
5050
5051     # check whether xmm clobbers are supported
5052     check_inline_asm xmm_clobbers '"":::"%xmm0"'
5053
5054     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
5055         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
5056
5057     # check whether binutils is new enough to compile SSSE3/MMXEXT
5058     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
5059     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
5060
5061     if ! disabled_any asm mmx yasm; then
5062         if check_cmd $yasmexe --version; then
5063             enabled x86_64 && yasm_extra="-m amd64"
5064             yasm_debug="-g dwarf2"
5065         elif check_cmd nasm -v; then
5066             yasmexe=nasm
5067             yasm_debug="-g -F dwarf"
5068             if enabled x86_64; then
5069                 case "$objformat" in
5070                     elf)   objformat=elf64 ;;
5071                     win32) objformat=win64 ;;
5072                 esac
5073             fi
5074         fi
5075
5076         YASMFLAGS="-f $objformat $yasm_extra"
5077         enabled pic               && append YASMFLAGS "-DPIC"
5078         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
5079         case "$objformat" in
5080             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
5081         esac
5082
5083         check_yasm "movbe ecx, [5]" && enable yasm ||
5084             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
5085         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
5086         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
5087         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
5088         check_yasm "CPU amdnop" || disable cpunop
5089     fi
5090
5091     case "$cpu" in
5092         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
5093             disable fast_clz
5094         ;;
5095     esac
5096
5097 fi
5098
5099 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
5100
5101 check_ldflags -Wl,--as-needed
5102 check_ldflags -Wl,-z,noexecstack
5103
5104 if check_func dlopen; then
5105     ldl=
5106 elif check_func dlopen -ldl; then
5107     ldl=-ldl
5108 fi
5109
5110 frei0r_filter_extralibs='$ldl'
5111 frei0r_src_filter_extralibs='$ldl'
5112 ladspa_filter_extralibs='$ldl'
5113 nvenc_encoder_extralibs='$ldl'
5114
5115 if ! disabled network; then
5116     check_func getaddrinfo $network_extralibs
5117     check_func inet_aton $network_extralibs
5118
5119     check_type netdb.h "struct addrinfo"
5120     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
5121     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
5122     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
5123     check_type poll.h "struct pollfd"
5124     check_type netinet/sctp.h "struct sctp_event_subscribe"
5125     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
5126     check_type netinet/in.h "struct sockaddr_in6"
5127     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
5128     check_type "sys/types.h sys/socket.h" socklen_t
5129
5130     # Prefer arpa/inet.h over winsock2
5131     if check_header arpa/inet.h ; then
5132         check_func closesocket
5133     elif check_header winsock2.h ; then
5134         check_func_headers winsock2.h closesocket -lws2 &&
5135             network_extralibs="-lws2" ||
5136         { check_func_headers winsock2.h closesocket -lws2_32 &&
5137             network_extralibs="-lws2_32"; } || disable winsock2_h network
5138         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
5139
5140         check_type ws2tcpip.h socklen_t
5141         check_type ws2tcpip.h "struct addrinfo"
5142         check_type ws2tcpip.h "struct group_source_req"
5143         check_type ws2tcpip.h "struct ip_mreq_source"
5144         check_type ws2tcpip.h "struct ipv6_mreq"
5145         check_type winsock2.h "struct pollfd"
5146         check_struct winsock2.h "struct sockaddr" sa_len
5147         check_type ws2tcpip.h "struct sockaddr_in6"
5148         check_type ws2tcpip.h "struct sockaddr_storage"
5149     else
5150         disable network
5151     fi
5152 fi
5153
5154 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
5155 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
5156 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
5157 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
5158 check_builtin sarestart signal.h "SA_RESTART"
5159 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
5160 check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
5161 check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
5162
5163 case "$custom_allocator" in
5164     jemalloc)
5165         # jemalloc by default does not use a prefix
5166         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
5167     ;;
5168     tcmalloc)
5169         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
5170         malloc_prefix=tc_
5171     ;;
5172 esac
5173
5174 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
5175 check_func  ${malloc_prefix}memalign            && enable memalign
5176 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
5177
5178 check_func  access
5179 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5180 check_func  fcntl
5181 check_func  fork
5182 check_func  gethrtime
5183 check_func  getopt
5184 check_func  getrusage
5185 check_func  gettimeofday
5186 check_func  isatty
5187 check_func  mach_absolute_time
5188 check_func  mkstemp
5189 check_func  mmap
5190 check_func  mprotect
5191 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
5192 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
5193 check_func  sched_getaffinity
5194 check_func  setrlimit
5195 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
5196 check_func  strerror_r
5197 check_func  sysconf
5198 check_func  sysctl
5199 check_func  usleep
5200
5201 check_func_headers conio.h kbhit
5202 check_func_headers io.h setmode
5203 check_func_headers lzo/lzo1x.h lzo1x_999_compress
5204 check_func_headers stdlib.h getenv
5205 check_func_headers sys/stat.h lstat
5206
5207 check_func_headers windows.h CoTaskMemFree -lole32
5208 check_func_headers windows.h GetProcessAffinityMask
5209 check_func_headers windows.h GetProcessTimes
5210 check_func_headers windows.h GetSystemTimeAsFileTime
5211 check_func_headers windows.h MapViewOfFile
5212 check_func_headers windows.h PeekNamedPipe
5213 check_func_headers windows.h SetConsoleTextAttribute
5214 check_func_headers windows.h SetConsoleCtrlHandler
5215 check_func_headers windows.h Sleep
5216 check_func_headers windows.h VirtualAlloc
5217 check_struct windows.h "CONDITION_VARIABLE" Ptr
5218 check_func_headers glob.h glob
5219 enabled xlib &&
5220     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
5221
5222 check_header direct.h
5223 check_header dirent.h
5224 check_header dlfcn.h
5225 check_header d3d11.h
5226 check_header dxva.h
5227 check_header dxva2api.h -D_WIN32_WINNT=0x0600
5228 check_header io.h
5229 check_header libcrystalhd/libcrystalhd_if.h
5230 check_header mach/mach_time.h
5231 check_header malloc.h
5232 check_header net/udplite.h
5233 check_header poll.h
5234 check_header sys/mman.h
5235 check_header sys/param.h
5236 check_header sys/resource.h
5237 check_header sys/select.h
5238 check_header sys/time.h
5239 check_header sys/un.h
5240 check_header termios.h
5241 check_header unistd.h
5242 check_header valgrind/valgrind.h
5243 check_header vdpau/vdpau.h
5244 check_header vdpau/vdpau_x11.h
5245 check_header VideoDecodeAcceleration/VDADecoder.h
5246 check_header VideoToolbox/VideoToolbox.h
5247 check_header windows.h
5248 check_header X11/extensions/XvMClib.h
5249 check_header asm/types.h
5250
5251 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
5252 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
5253 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
5254 check_lib "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
5255
5256 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
5257
5258 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
5259 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
5260 check_type "windows.h d3d11.h" "ID3D11VideoContext"
5261 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
5262
5263 check_type "va/va.h" "VAPictureParameterBufferHEVC"
5264
5265 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
5266
5267 check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
5268
5269 if ! disabled w32threads && ! enabled pthreads; then
5270     check_func_headers "windows.h process.h" _beginthreadex &&
5271         enable w32threads || disable w32threads
5272     if ! enabled w32threads && enabled winrt; then
5273         check_func_headers "windows.h" CreateThread &&
5274             enable w32threads || disable w32threads
5275     fi
5276 fi
5277
5278 # check for some common methods of building with pthread support
5279 # do this before the optional library checks as some of them require pthreads
5280 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
5281     enable pthreads
5282     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
5283         add_cflags -pthread
5284         add_extralibs -pthread
5285     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
5286         add_cflags -pthreads
5287         add_extralibs -pthreads
5288     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
5289         add_cflags -ldl -pthread
5290         add_extralibs -ldl -pthread
5291     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
5292         add_extralibs -lpthreadGC2
5293     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
5294         :
5295     elif ! check_func pthread_join && ! check_func pthread_create; then
5296         disable pthreads
5297     fi
5298     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
5299 fi
5300
5301
5302 if enabled pthreads; then
5303   check_func pthread_cancel
5304 fi
5305
5306 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
5307 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
5308 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
5309
5310 check_lib math.h sin -lm && LIBM="-lm"
5311 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
5312
5313 atan2f_args=2
5314 copysign_args=2
5315 hypot_args=2
5316 ldexpf_args=2
5317 powf_args=2
5318
5319 for func in $MATH_FUNCS; do
5320     eval check_mathfunc $func \${${func}_args:-1}
5321 done
5322
5323 # these are off by default, so fail if requested and not available
5324 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
5325 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
5326                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
5327 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
5328                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
5329                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
5330 enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
5331 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
5332 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
5333 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
5334 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
5335 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
5336 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
5337 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
5338 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
5339 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
5340 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
5341                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
5342                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
5343 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
5344 enabled libdcadec         && require_pkg_config dcadec libdcadec/dca_context.h dcadec_context_create &&
5345                              check_struct libdcadec/dca_context.h "struct dcadec_exss_info" matrix_encoding
5346 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5347 enabled libfdk_aac        && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
5348                                { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
5349                                  warn "using libfdk without pkg-config"; } }
5350 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"
5351 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
5352 enabled fontconfig        && enable libfontconfig
5353 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
5354 enabled libfreetype       && require_libfreetype
5355 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
5356 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
5357 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
5358                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
5359                                done || die "ERROR: libgsm not found"; }
5360 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
5361 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
5362 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
5363 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
5364 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
5365 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
5366 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
5367 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
5368 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
5369 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
5370 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
5371                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5372                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
5373                                die "ERROR: libopenjpeg not found"; }
5374 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
5375 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
5376 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
5377 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
5378 enabled librubberband     && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
5379 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
5380 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
5381 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
5382                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
5383 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
5384 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
5385 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
5386 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
5387 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
5388     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
5389     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
5390 enabled libtesseract      && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
5391 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
5392 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
5393                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
5394                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
5395 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
5396 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
5397 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
5398 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
5399 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
5400 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
5401
5402 enabled libvpx            && {
5403     enabled libvpx_vp8_decoder && {
5404         use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
5405             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
5406                 die "ERROR: libvpx decoder version must be >=0.9.1";
5407     }
5408     enabled libvpx_vp8_encoder && {
5409         use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
5410             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
5411                 die "ERROR: libvpx encoder version must be >=0.9.7";
5412     }
5413     enabled libvpx_vp9_decoder && {
5414         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
5415             check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
5416                 disable libvpx_vp9_decoder;
5417     }
5418     enabled libvpx_vp9_encoder && {
5419         use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
5420             check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
5421                 disable libvpx_vp9_encoder;
5422     }
5423     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
5424         die "libvpx enabled but no supported decoders found"
5425     fi
5426 }
5427
5428 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
5429 enabled libwebp           && {
5430     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
5431     enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
5432 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
5433                                { require libx264 x264.h x264_encoder_encode -lx264 &&
5434                                  warn "using libx264 without pkg-config"; } } &&
5435                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
5436                                die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
5437                              { check_cpp_condition x264.h "X264_MPEG2" &&
5438                                enable libx262; }
5439 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
5440                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
5441                                die "ERROR: libx265 version must be >= 57."; }
5442 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
5443 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
5444 enabled libzimg           && require_pkg_config zimg zimg.h zimg_get_api_version
5445 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
5446 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
5447 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
5448                                 { ! enabled cross_compile && {
5449                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
5450                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
5451                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
5452                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
5453                                die "ERROR: mmal not found"; }
5454 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
5455                              { check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
5456                                die "ERROR: NVENC API version 4 or older is not supported"; } &&
5457                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
5458 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
5459                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
5460                                die "ERROR: openal not found"; } &&
5461                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
5462                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
5463 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
5464                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5465                                die "ERROR: opencl not found"; } &&
5466                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5467                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5468                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5469 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5470                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5471                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5472                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5473                                die "ERROR: opengl not found."
5474                              }
5475 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5476                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5477                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5478                                die "ERROR: openssl not found"; }
5479 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
5480
5481 if enabled gnutls; then
5482     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
5483     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
5484 fi
5485
5486 # libdc1394 check
5487 if enabled libdc1394; then
5488     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5489         enable libdc1394_2; } ||
5490     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5491         enable libdc1394_1; } ||
5492     die "ERROR: No version of libdc1394 found "
5493 fi
5494 if ! disabled sdl; then
5495     SDL_CONFIG="${cross_prefix}sdl-config"
5496     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5497         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5498         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5499         enable sdl
5500     else
5501         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5502             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5503             sdl_libs=$("${SDL_CONFIG}" --libs)
5504             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5505             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5506             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5507             enable sdl
5508         elif enabled sdl ; then
5509             die "ERROR: SDL not found"
5510         else
5511             disable sdl
5512         fi
5513     fi
5514     if test $target_os = "mingw32"; then
5515         sdl_libs="$sdl_libs -mconsole"
5516     fi
5517 fi
5518 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5519
5520 disabled securetransport || { check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5521     check_lib2 "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
5522     enable securetransport; }
5523
5524 disabled schannel || { check_func_headers "windows.h Security.h" InitializeSecurityContext -DSECURITY_WIN32 -lSecur32 &&
5525                        enable schannel && add_extralibs -lSecur32; }
5526
5527 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5528 enabled makeinfo \
5529     && [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
5530     && enable makeinfo_html || disable makeinfo_html
5531 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5532 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5533 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5534 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5535
5536 check_header linux/fb.h
5537 check_header linux/videodev.h
5538 check_header linux/videodev2.h
5539 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5540
5541 check_header sys/videoio.h
5542 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5543
5544 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5545 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5546 # w32api 3.12 had it defined wrong
5547 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5548
5549 check_type "dshow.h" IBaseFilter
5550
5551 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5552 { check_header dev/bktr/ioctl_meteor.h &&
5553   check_header dev/bktr/ioctl_bt848.h; } ||
5554 { check_header machine/ioctl_meteor.h &&
5555   check_header machine/ioctl_bt848.h; } ||
5556 { check_header dev/video/meteor/ioctl_meteor.h &&
5557   check_header dev/video/bktr/ioctl_bt848.h; } ||
5558 check_header dev/ic/bt8xx.h
5559
5560 check_header sndio.h
5561 if check_struct sys/soundcard.h audio_buf_info bytes; then
5562     enable_safe sys/soundcard.h
5563 else
5564     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5565     #include <sys/soundcard.h>
5566     audio_buf_info abc;
5567 EOF
5568 fi
5569 check_header soundcard.h
5570
5571 enabled_any alsa_indev alsa_outdev &&
5572     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5573
5574 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5575     check_func jack_port_get_latency_range -ljack
5576
5577 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5578
5579 if enabled libcdio; then
5580     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5581     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5582     die "ERROR: No usable libcdio/cdparanoia found"
5583 fi
5584
5585 enabled xlib &&
5586     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5587
5588 if ! disabled libxcb; then
5589     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5590         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5591     } && disable x11grab && enable libxcb
5592
5593 if enabled libxcb; then
5594     disabled libxcb_shm || {
5595         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5596             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5597         } && check_header sys/shm.h && enable libxcb_shm; }
5598
5599     disabled libxcb_xfixes || {
5600         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5601             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5602         } && enable libxcb_xfixes; }
5603
5604     disabled libxcb_shape || {
5605         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5606             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5607         } && enable libxcb_shape; }
5608
5609     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5610     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5611 fi
5612 fi
5613
5614 if enabled x11grab; then
5615     enabled xlib || die "ERROR: Xlib not found"
5616     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5617     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5618 fi
5619
5620 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5621
5622 enabled dxva2api_h &&
5623     check_cc <<EOF && enable dxva2api_cobj
5624 #define _WIN32_WINNT 0x0600
5625 #define COBJMACROS
5626 #include <windows.h>
5627 #include <d3d9.h>
5628 #include <dxva2api.h>
5629 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5630 EOF
5631
5632 enabled vaapi &&
5633     check_lib va/va.h vaInitialize -lva ||
5634     disable vaapi
5635
5636 enabled vaapi && enabled xlib &&
5637     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5638     enable vaapi_x11
5639
5640 enabled vdpau &&
5641     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5642     disable vdpau
5643
5644 enabled vdpau && enabled xlib &&
5645     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5646     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5647     enable vdpau_x11
5648
5649 # Funny iconv installations are not unusual, so check it after all flags have been set
5650 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5651
5652 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5653
5654 # add some useful compiler flags if supported
5655 check_cflags -Wdeclaration-after-statement
5656 check_cflags -Wall
5657 check_cflags -Wdisabled-optimization
5658 check_cflags -Wpointer-arith
5659 check_cflags -Wredundant-decls
5660 check_cflags -Wwrite-strings
5661 check_cflags -Wtype-limits
5662 check_cflags -Wundef
5663 check_cflags -Wmissing-prototypes
5664 check_cflags -Wno-pointer-to-int-cast
5665 check_cflags -Wstrict-prototypes
5666 check_cflags -Wempty-body
5667 enabled extra_warnings && check_cflags -Winline
5668
5669 check_disable_warning(){
5670     warning_flag=-W${1#-Wno-}
5671     test_cflags $warning_flag && add_cflags $1
5672 }
5673
5674 check_disable_warning -Wno-parentheses
5675 check_disable_warning -Wno-switch
5676 check_disable_warning -Wno-format-zero-length
5677 check_disable_warning -Wno-pointer-sign
5678
5679 # add some linker flags
5680 check_ldflags -Wl,--warn-common
5681 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5682 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5683 enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
5684 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5685
5686 # add some strip flags
5687 # -wN '..@*' is more selective than -x, but not available everywhere.
5688 check_stripflags -wN \'..@*\' || check_stripflags -x
5689
5690 enabled neon_clobber_test &&
5691     check_ldflags -Wl,--wrap,avcodec_open2              \
5692                   -Wl,--wrap,avcodec_decode_audio4      \
5693                   -Wl,--wrap,avcodec_decode_video2      \
5694                   -Wl,--wrap,avcodec_decode_subtitle2   \
5695                   -Wl,--wrap,avcodec_encode_audio2      \
5696                   -Wl,--wrap,avcodec_encode_video2      \
5697                   -Wl,--wrap,avcodec_encode_subtitle    \
5698                   -Wl,--wrap,swr_convert                \
5699                   -Wl,--wrap,avresample_convert ||
5700     disable neon_clobber_test
5701
5702 enabled xmm_clobber_test &&
5703     check_ldflags -Wl,--wrap,avcodec_open2              \
5704                   -Wl,--wrap,avcodec_decode_audio4      \
5705                   -Wl,--wrap,avcodec_decode_video2      \
5706                   -Wl,--wrap,avcodec_decode_subtitle2   \
5707                   -Wl,--wrap,avcodec_encode_audio2      \
5708                   -Wl,--wrap,avcodec_encode_video2      \
5709                   -Wl,--wrap,avcodec_encode_subtitle    \
5710                   -Wl,--wrap,swr_convert                \
5711                   -Wl,--wrap,avresample_convert         \
5712                   -Wl,--wrap,sws_scale ||
5713     disable xmm_clobber_test
5714
5715 echo "X { local: *; };" > $TMPV
5716 if test_ldflags -Wl,--version-script,$TMPV; then
5717     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5718 elif test_ldflags -Wl,-M,$TMPV; then
5719     append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
5720 fi
5721
5722 check_cc <<EOF && enable symver_asm_label
5723 void ff_foo(void) __asm__ ("av_foo@VERSION");
5724 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5725 EOF
5726     check_cc <<EOF && enable symver_gnu_asm
5727 __asm__(".symver ff_foo,av_foo@VERSION");
5728 void ff_foo(void) {}
5729 EOF
5730
5731 if [ -z "$optflags" ]; then
5732     if enabled small; then
5733         optflags=$cflags_size
5734     elif enabled optimizations; then
5735         optflags=$cflags_speed
5736     else
5737         optflags=$cflags_noopt
5738     fi
5739 fi
5740
5741 check_optflags(){
5742     check_cflags "$@"
5743     enabled lto && check_ldflags "$@"
5744 }
5745
5746
5747 if enabled lto; then
5748     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5749     check_cflags  -flto
5750     check_ldflags -flto $cpuflags
5751     disable inline_asm_direct_symbol_refs
5752 fi
5753
5754 check_optflags $optflags
5755 check_optflags -fno-math-errno
5756 check_optflags -fno-signed-zeros
5757
5758 enabled ftrapv && check_cflags -ftrapv
5759
5760 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5761 int x;
5762 EOF
5763
5764
5765 if enabled icc; then
5766     # Just warnings, no remarks
5767     check_cflags -w1
5768     # -wd: Disable following warnings
5769     # 144, 167, 556: -Wno-pointer-sign
5770     # 188: enumerated type mixed with another type
5771     # 1292: attribute "foo" ignored
5772     # 1419: external declaration in primary source file
5773     # 10006: ignoring unknown option -fno-signed-zeros
5774     # 10148: ignoring unknown option -Wno-parentheses
5775     # 10156: ignoring option '-W'; no argument required
5776     # 13200: No EMMS instruction before call to function
5777     # 13203: No EMMS instruction before return from function
5778     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
5779     # 11030: Warning unknown option --as-needed
5780     # 10156: ignoring option '-export'; no argument required
5781     check_ldflags -wd10156,11030
5782     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5783     enable ebp_available
5784     # The test above does not test linking
5785     enabled lto && disable symver_asm_label
5786     if enabled x86_32; then
5787         icc_version=$($cc -dumpversion)
5788         test ${icc_version%%.*} -ge 11 &&
5789             check_cflags -falign-stack=maintain-16-byte ||
5790             disable aligned_stack
5791     fi
5792 elif enabled ccc; then
5793     # disable some annoying warnings
5794     add_cflags -msg_disable bitnotint
5795     add_cflags -msg_disable mixfuncvoid
5796     add_cflags -msg_disable nonstandcast
5797     add_cflags -msg_disable unsupieee
5798 elif enabled gcc; then
5799     check_optflags -fno-tree-vectorize
5800     check_cflags -Werror=format-security
5801     check_cflags -Werror=implicit-function-declaration
5802     check_cflags -Werror=missing-prototypes
5803     check_cflags -Werror=return-type
5804     check_cflags -Werror=vla
5805     check_cflags -Wformat
5806     check_cflags -fdiagnostics-color=auto
5807     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5808 elif enabled llvm_gcc; then
5809     check_cflags -mllvm -stack-alignment=16
5810 elif enabled clang; then
5811     check_cflags -mllvm -stack-alignment=16
5812     check_cflags -Qunused-arguments
5813     check_cflags -Werror=implicit-function-declaration
5814     check_cflags -Werror=missing-prototypes
5815     check_cflags -Werror=return-type
5816 elif enabled cparser; then
5817     add_cflags -Wno-missing-variable-declarations
5818     add_cflags -Wno-empty-statement
5819 elif enabled armcc; then
5820     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5821     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5822     # 2523: use of inline assembly is deprecated
5823     add_cflags -W${armcc_opt},--diag_suppress=2523
5824     add_cflags -W${armcc_opt},--diag_suppress=1207
5825     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5826     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5827     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5828     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5829 elif enabled tms470; then
5830     add_cflags -pds=824 -pds=837
5831     disable inline_asm
5832 elif enabled pathscale; then
5833     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5834 elif enabled_any msvc icl; then
5835     enabled x86_32 && disable aligned_stack
5836     enabled_all x86_32 debug && add_cflags -Oy-
5837     enabled debug && add_ldflags -debug
5838     enable pragma_deprecated
5839     if enabled icl; then
5840         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5841         # (correctly) on icl 13.x.
5842         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5843             add_cflags -Qansi-alias
5844         # Some inline asm is not compilable in debug
5845         if enabled debug; then
5846             disable ebp_available
5847             disable ebx_available
5848         fi
5849     fi
5850     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5851     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5852     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5853     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5854     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5855     # MSVC 2013 and newer can handle it fine.
5856     # If this declspec fails, force including stdlib.h before the restrict redefinition
5857     # happens in config.h.
5858     if [ $_restrict != restrict ]; then
5859         check_cc <<EOF || add_cflags -FIstdlib.h
5860 __declspec($_restrict) void* foo(int);
5861 EOF
5862     fi
5863     check_func strtoll || add_cflags -Dstrtoll=_strtoi64
5864 fi
5865
5866 for pfx in "" host_; do
5867     varname=${pfx%_}cc_type
5868     eval "type=\$$varname"
5869     if [ $type = "msvc" ]; then
5870         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5871 static inline int foo(int a) { return a; }
5872 EOF
5873     fi
5874 done
5875
5876 case $as_type in
5877     clang)
5878         add_asflags -Qunused-arguments
5879     ;;
5880 esac
5881
5882 case $ld_type in
5883     clang)
5884         check_ldflags -Qunused-arguments
5885     ;;
5886 esac
5887
5888 case $target_os in
5889     osf1)
5890         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5891     ;;
5892     plan9)
5893         add_cppflags -Dmain=plan9_main
5894     ;;
5895 esac
5896
5897 enable frame_thread_encoder
5898
5899 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5900
5901 check_deps $CONFIG_LIST       \
5902            $CONFIG_EXTRA      \
5903            $HAVE_LIST         \
5904            $ALL_COMPONENTS    \
5905
5906 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"
5907
5908
5909 if test $target_os = "haiku"; then
5910     disable memalign
5911     disable posix_memalign
5912 fi
5913
5914 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5915     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5916     enable dxva2_lib
5917
5918 ! enabled_any memalign posix_memalign aligned_malloc &&
5919     enabled simd_align_16 && enable memalign_hack
5920
5921 # add_dep lib dep
5922 # -> enable ${lib}_deps_${dep}
5923 # -> add $dep to ${lib}_deps only once
5924 add_dep() {
5925     lib=$1
5926     dep=$2
5927     enabled "${lib}_deps_${dep}" && return 0
5928     enable  "${lib}_deps_${dep}"
5929     prepend "${lib}_deps" $dep
5930 }
5931
5932 # merge deps lib components
5933 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5934 merge_deps() {
5935     lib=$1
5936     shift
5937     for comp in $*; do
5938         enabled $comp || continue
5939         eval "dep=\"\$${comp}_deps\""
5940         for d in $dep; do
5941             add_dep $lib $d
5942         done
5943     done
5944 }
5945
5946 merge_deps libavfilter $FILTER_LIST
5947
5948 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5949
5950 for thread in $THREADS_LIST; do
5951     if enabled $thread; then
5952         test -n "$thread_type" &&
5953             die "ERROR: Only one thread type must be selected." ||
5954             thread_type="$thread"
5955     fi
5956 done
5957
5958 enabled zlib && add_cppflags -DZLIB_CONST
5959
5960 # conditional library dependencies, in linking order
5961 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5962 enabled aresample_filter    && prepend avfilter_deps "swresample"
5963 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5964 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5965 enabled cover_rect_filter   && prepend avfilter_deps "avformat avcodec"
5966 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5967 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5968 enabled fftfilt_filter      && prepend avfilter_deps "avcodec"
5969 enabled find_rect_filter    && prepend avfilter_deps "avformat avcodec"
5970 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5971 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5972 enabled pan_filter          && prepend avfilter_deps "swresample"
5973 enabled pp_filter           && prepend avfilter_deps "postproc"
5974 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5975 enabled resample_filter && prepend avfilter_deps "avresample"
5976 enabled sab_filter          && prepend avfilter_deps "swscale"
5977 enabled scale_filter    && prepend avfilter_deps "swscale"
5978 enabled scale2ref_filter    && prepend avfilter_deps "swscale"
5979 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5980 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5981 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5982 enabled uspp_filter         && prepend avfilter_deps "avcodec"
5983
5984 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5985
5986 enabled opus_decoder    && prepend avcodec_deps "swresample"
5987
5988 expand_deps(){
5989     lib_deps=${1}_deps
5990     eval "deps=\$$lib_deps"
5991     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5992     unique $lib_deps
5993 }
5994
5995 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5996 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5997
5998 map 'expand_deps $v' $LIBRARY_LIST
5999
6000 echo "install prefix            $prefix"
6001 echo "source path               $source_path"
6002 echo "C compiler                $cc"
6003 echo "C library                 $libc_type"
6004 if test "$host_cc" != "$cc"; then
6005     echo "host C compiler           $host_cc"
6006     echo "host C library            $host_libc_type"
6007 fi
6008 echo "ARCH                      $arch ($cpu)"
6009 if test "$build_suffix" != ""; then
6010     echo "build suffix              $build_suffix"
6011 fi
6012 if test "$progs_suffix" != ""; then
6013     echo "progs suffix              $progs_suffix"
6014 fi
6015 if test "$extra_version" != ""; then
6016     echo "version string suffix     $extra_version"
6017 fi
6018 echo "big-endian                ${bigendian-no}"
6019 echo "runtime cpu detection     ${runtime_cpudetect-no}"
6020 if enabled x86; then
6021     echo "${yasmexe}                      ${yasm-no}"
6022     echo "MMX enabled               ${mmx-no}"
6023     echo "MMXEXT enabled            ${mmxext-no}"
6024     echo "3DNow! enabled            ${amd3dnow-no}"
6025     echo "3DNow! extended enabled   ${amd3dnowext-no}"
6026     echo "SSE enabled               ${sse-no}"
6027     echo "SSSE3 enabled             ${ssse3-no}"
6028     echo "AESNI enabled             ${aesni-no}"
6029     echo "AVX enabled               ${avx-no}"
6030     echo "XOP enabled               ${xop-no}"
6031     echo "FMA3 enabled              ${fma3-no}"
6032     echo "FMA4 enabled              ${fma4-no}"
6033     echo "i686 features enabled     ${i686-no}"
6034     echo "CMOV is fast              ${fast_cmov-no}"
6035     echo "EBX available             ${ebx_available-no}"
6036     echo "EBP available             ${ebp_available-no}"
6037 fi
6038 if enabled aarch64; then
6039     echo "NEON enabled              ${neon-no}"
6040     echo "VFP enabled               ${vfp-no}"
6041 fi
6042 if enabled arm; then
6043     echo "ARMv5TE enabled           ${armv5te-no}"
6044     echo "ARMv6 enabled             ${armv6-no}"
6045     echo "ARMv6T2 enabled           ${armv6t2-no}"
6046     echo "VFP enabled               ${vfp-no}"
6047     echo "NEON enabled              ${neon-no}"
6048     echo "THUMB enabled             ${thumb-no}"
6049 fi
6050 if enabled mips; then
6051     echo "MIPS FPU enabled          ${mipsfpu-no}"
6052     echo "MIPS32R5 enabled          ${mips32r5-no}"
6053     echo "MIPS64R6 enabled          ${mips64r6-no}"
6054     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
6055     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
6056     echo "MIPS MSA enabled          ${msa-no}"
6057     echo "LOONGSON MMI enabled      ${mmi-no}"
6058 fi
6059 if enabled ppc; then
6060     echo "AltiVec enabled           ${altivec-no}"
6061     echo "VSX enabled               ${vsx-no}"
6062     echo "POWER8 enabled            ${power8-no}"
6063     echo "PPC 4xx optimizations     ${ppc4xx-no}"
6064     echo "dcbzl available           ${dcbzl-no}"
6065 fi
6066 echo "debug symbols             ${debug-no}"
6067 echo "strip symbols             ${stripping-no}"
6068 echo "optimize for size         ${small-no}"
6069 echo "optimizations             ${optimizations-no}"
6070 echo "static                    ${static-no}"
6071 echo "shared                    ${shared-no}"
6072 echo "postprocessing support    ${postproc-no}"
6073 echo "new filter support        ${avfilter-no}"
6074 echo "network support           ${network-no}"
6075 echo "threading support         ${thread_type-no}"
6076 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
6077 echo "SDL support               ${sdl-no}"
6078 echo "opencl enabled            ${opencl-no}"
6079 echo "texi2html enabled         ${texi2html-no}"
6080 echo "perl enabled              ${perl-no}"
6081 echo "pod2man enabled           ${pod2man-no}"
6082 echo "makeinfo enabled          ${makeinfo-no}"
6083 echo "makeinfo supports HTML    ${makeinfo_html-no}"
6084 test -n "$random_seed" &&
6085     echo "random seed               ${random_seed}"
6086 echo
6087
6088 echo "Enabled programs:"
6089 print_enabled '' $PROGRAM_LIST | print_in_columns
6090 echo
6091
6092 echo "External libraries:"
6093 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
6094 echo
6095
6096 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
6097     echo "Enabled ${type}s:"
6098     eval list=\$$(toupper $type)_LIST
6099     print_enabled '_*' $list | print_in_columns
6100     echo
6101 done
6102
6103 license="LGPL version 2.1 or later"
6104 if enabled nonfree; then
6105     license="nonfree and unredistributable"
6106 elif enabled gplv3; then
6107     license="GPL version 3 or later"
6108 elif enabled lgplv3; then
6109     license="LGPL version 3 or later"
6110 elif enabled gpl; then
6111     license="GPL version 2 or later"
6112 fi
6113
6114 echo "License: $license"
6115
6116 echo "Creating config.mak, config.h, and doc/config.texi..."
6117
6118 test -e Makefile || echo "include $source_path/Makefile" > Makefile
6119
6120 enabled stripping || strip="echo skipping strip"
6121
6122 config_files="$TMPH config.mak doc/config.texi"
6123
6124 cat > config.mak <<EOF
6125 # Automatically generated by configure - do not modify!
6126 ifndef FFMPEG_CONFIG_MAK
6127 FFMPEG_CONFIG_MAK=1
6128 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
6129 prefix=$prefix
6130 LIBDIR=\$(DESTDIR)$libdir
6131 SHLIBDIR=\$(DESTDIR)$shlibdir
6132 INCDIR=\$(DESTDIR)$incdir
6133 BINDIR=\$(DESTDIR)$bindir
6134 DATADIR=\$(DESTDIR)$datadir
6135 DOCDIR=\$(DESTDIR)$docdir
6136 MANDIR=\$(DESTDIR)$mandir
6137 PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
6138 SRC_PATH=$source_path
6139 ifndef MAIN_MAKEFILE
6140 SRC_PATH:=\$(SRC_PATH:.%=..%)
6141 endif
6142 CC_IDENT=$cc_ident
6143 ARCH=$arch
6144 INTRINSICS=$intrinsics
6145 CC=$cc
6146 CXX=$cxx
6147 AS=$as
6148 LD=$ld
6149 DEPCC=$dep_cc
6150 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
6151 DEPAS=$as
6152 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
6153 YASM=$yasmexe
6154 DEPYASM=$yasmexe
6155 AR=$ar
6156 ARFLAGS=$arflags
6157 AR_O=$ar_o
6158 RANLIB=$ranlib
6159 STRIP=$strip
6160 CP=cp -p
6161 LN_S=$ln_s
6162 CPPFLAGS=$CPPFLAGS
6163 CFLAGS=$CFLAGS
6164 CXXFLAGS=$CXXFLAGS
6165 ASFLAGS=$ASFLAGS
6166 AS_C=$AS_C
6167 AS_O=$AS_O
6168 CC_C=$CC_C
6169 CC_E=$CC_E
6170 CC_O=$CC_O
6171 CXX_C=$CXX_C
6172 CXX_O=$CXX_O
6173 LD_O=$LD_O
6174 LD_LIB=$LD_LIB
6175 LD_PATH=$LD_PATH
6176 DLLTOOL=$dlltool
6177 WINDRES=$windres
6178 DEPWINDRES=$dep_cc
6179 DOXYGEN=$doxygen
6180 LDFLAGS=$LDFLAGS
6181 LDEXEFLAGS=$LDEXEFLAGS
6182 LDLIBFLAGS=$LDLIBFLAGS
6183 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
6184 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
6185 YASMFLAGS=$YASMFLAGS
6186 BUILDSUF=$build_suffix
6187 PROGSSUF=$progs_suffix
6188 FULLNAME=$FULLNAME
6189 LIBPREF=$LIBPREF
6190 LIBSUF=$LIBSUF
6191 LIBNAME=$LIBNAME
6192 SLIBPREF=$SLIBPREF
6193 SLIBSUF=$SLIBSUF
6194 EXESUF=$EXESUF
6195 EXTRA_VERSION=$extra_version
6196 CCDEP=$CCDEP
6197 CXXDEP=$CXXDEP
6198 CCDEP_FLAGS=$CCDEP_FLAGS
6199 ASDEP=$ASDEP
6200 ASDEP_FLAGS=$ASDEP_FLAGS
6201 CC_DEPFLAGS=$CC_DEPFLAGS
6202 AS_DEPFLAGS=$AS_DEPFLAGS
6203 HOSTCC=$host_cc
6204 HOSTLD=$host_ld
6205 HOSTCFLAGS=$host_cflags
6206 HOSTCPPFLAGS=$host_cppflags
6207 HOSTEXESUF=$HOSTEXESUF
6208 HOSTLDFLAGS=$host_ldflags
6209 HOSTLIBS=$host_libs
6210 DEPHOSTCC=$host_cc
6211 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
6212 HOSTCCDEP=$HOSTCCDEP
6213 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
6214 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
6215 HOSTCC_C=$HOSTCC_C
6216 HOSTCC_O=$HOSTCC_O
6217 HOSTLD_O=$HOSTLD_O
6218 TARGET_EXEC=$target_exec $target_exec_args
6219 TARGET_PATH=$target_path
6220 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
6221 CFLAGS-ffplay=$sdl_cflags
6222 ZLIB=$($ldflags_filter -lz)
6223 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
6224 EXTRALIBS=$extralibs
6225 COMPAT_OBJS=$compat_objs
6226 EXEOBJS=$exeobjs
6227 INSTALL=$install
6228 LIBTARGET=${LIBTARGET}
6229 SLIBNAME=${SLIBNAME}
6230 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
6231 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
6232 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
6233 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
6234 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
6235 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
6236 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
6237 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
6238 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
6239 NOREDZONE_FLAGS=$noredzone_flags
6240 EOF
6241
6242 get_version(){
6243     lcname=lib${1}
6244     name=$(toupper $lcname)
6245     file=$source_path/$lcname/version.h
6246     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
6247     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
6248     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
6249     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
6250     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
6251     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
6252 }
6253
6254 map 'get_version $v' $LIBRARY_LIST
6255
6256 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
6257
6258 print_program_libs(){
6259     eval "program_libs=\$${1}_libs"
6260     eval echo "LIBS-${1}=${program_libs}" >> config.mak
6261 }
6262
6263 map 'print_program_libs $v' $PROGRAM_LIST
6264
6265 cat > $TMPH <<EOF
6266 /* Automatically generated by configure - do not modify! */
6267 #ifndef FFMPEG_CONFIG_H
6268 #define FFMPEG_CONFIG_H
6269 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
6270 #define FFMPEG_LICENSE "$(c_escape $license)"
6271 #define CONFIG_THIS_YEAR 2015
6272 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
6273 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
6274 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
6275 #define av_restrict $_restrict
6276 #define EXTERN_PREFIX "${extern_prefix}"
6277 #define EXTERN_ASM ${extern_prefix}
6278 #define BUILDSUF "$build_suffix"
6279 #define SLIBSUF "$SLIBSUF"
6280 #define HAVE_MMX2 HAVE_MMXEXT
6281 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
6282 EOF
6283
6284 test -n "$assert_level" &&
6285     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
6286
6287 test -n "$malloc_prefix" &&
6288     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
6289
6290 if enabled yasm; then
6291     append config_files $TMPASM
6292     printf '' >$TMPASM
6293 fi
6294
6295 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
6296
6297
6298 mkdir -p doc
6299 mkdir -p tests
6300 mkdir -p tests/api
6301 echo "@c auto-generated by configure - do not modify! " > doc/config.texi
6302
6303 print_config ARCH_   "$config_files" $ARCH_LIST
6304 print_config HAVE_   "$config_files" $HAVE_LIST
6305 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
6306                                      $CONFIG_EXTRA      \
6307                                      $ALL_COMPONENTS    \
6308
6309 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
6310 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
6311
6312 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
6313 cp_if_changed $TMPH config.h
6314 touch .config
6315
6316 enabled yasm && cp_if_changed $TMPASM config.asm
6317
6318 cat > $TMPH <<EOF
6319 /* Generated by ffconf */
6320 #ifndef AVUTIL_AVCONFIG_H
6321 #define AVUTIL_AVCONFIG_H
6322 EOF
6323
6324 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
6325
6326 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
6327
6328 cp_if_changed $TMPH libavutil/avconfig.h
6329
6330 if test -n "$WARNINGS"; then
6331     printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
6332     enabled fatal_warnings && exit 1
6333 fi
6334
6335 # build pkg-config files
6336
6337 lib_version(){
6338     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
6339 }
6340
6341 pkgconfig_generate(){
6342     name=$1
6343     shortname=${name#lib}${build_suffix}
6344     comment=$2
6345     version=$3
6346     libs=$4
6347     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
6348     requires=${requires%, }
6349     enabled ${name#lib} || return 0
6350     mkdir -p $name
6351     cat <<EOF > $name/$name${build_suffix}.pc
6352 prefix=$prefix
6353 exec_prefix=\${prefix}
6354 libdir=$libdir
6355 includedir=$incdir
6356
6357 Name: $name
6358 Description: $comment
6359 Version: $version
6360 Requires: $(enabled shared || echo $requires)
6361 Requires.private: $(enabled shared && echo $requires)
6362 Conflicts:
6363 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
6364 Libs.private: $(enabled shared && echo $libs)
6365 Cflags: -I\${includedir}
6366 EOF
6367
6368 mkdir -p doc/examples/pc-uninstalled
6369 includedir=${source_path}
6370 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
6371     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
6372 prefix=
6373 exec_prefix=
6374 libdir=\${pcfiledir}/../../../$name
6375 includedir=${includedir}
6376
6377 Name: $name
6378 Description: $comment
6379 Version: $version
6380 Requires: $requires
6381 Conflicts:
6382 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
6383 Cflags: -I\${includedir}
6384 EOF
6385 }
6386
6387 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
6388 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
6389 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
6390 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
6391 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
6392 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
6393 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
6394 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
6395 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM $LIBSOXR"