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   --enable-rpath           use rpath to allow installing libraries in paths
  91                            not part of the dynamic linker search path
  92                            use rpath when linking programs [USE WITH CARE]
  93
  94 Licensing options:
  95   --enable-gpl             allow use of GPL code, the resulting libs
  96                            and binaries will be under GPL [no]
  97   --enable-version3        upgrade (L)GPL to version 3 [no]
  98   --enable-nonfree         allow use of nonfree code, the resulting libs
  99                            and binaries will be unredistributable [no]
 100
 101 Configuration options:
 102   --disable-static         do not build static libraries [no]
 103   --enable-shared          build shared libraries [no]
 104   --enable-small           optimize for size instead of speed
 105   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 106   --enable-gray            enable full grayscale support (slower color)
 107   --disable-swscale-alpha  disable alpha channel support in swscale
 108   --disable-all            disable building components, libraries and programs
 109   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 110   --enable-raise-major     increase major version numbers in sonames [no]
 111
 112 Program options:
 113   --disable-programs       do not build command line programs
 114   --disable-ffmpeg         disable ffmpeg build
 115   --disable-ffplay         disable ffplay build
 116   --disable-ffprobe        disable ffprobe build
 117   --disable-ffserver       disable ffserver build
 118
 119 Documentation options:
 120   --disable-doc            do not build documentation
 121   --disable-htmlpages      do not build HTML documentation pages
 122   --disable-manpages       do not build man documentation pages
 123   --disable-podpages       do not build POD documentation pages
 124   --disable-txtpages       do not build text documentation pages
 125
 126 Component options:
 127   --disable-avdevice       disable libavdevice build
 128   --disable-avcodec        disable libavcodec build
 129   --disable-avformat       disable libavformat build
 130   --disable-avutil         disable libavutil build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [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-dxva2          disable DXVA2 code [autodetect]
 153   --disable-vaapi          disable VAAPI code [autodetect]
 154   --disable-vda            disable VDA code [autodetect]
 155   --disable-vdpau          disable VDPAU code [autodetect]
 156
 157 Individual component options:
 158   --disable-everything     disable all components listed below
 159   --disable-encoder=NAME   disable encoder NAME
 160   --enable-encoder=NAME    enable encoder NAME
 161   --disable-encoders       disable all encoders
 162   --disable-decoder=NAME   disable decoder NAME
 163   --enable-decoder=NAME    enable decoder NAME
 164   --disable-decoders       disable all decoders
 165   --disable-hwaccel=NAME   disable hwaccel NAME
 166   --enable-hwaccel=NAME    enable hwaccel NAME
 167   --disable-hwaccels       disable all hwaccels
 168   --disable-muxer=NAME     disable muxer NAME
 169   --enable-muxer=NAME      enable muxer NAME
 170   --disable-muxers         disable all muxers
 171   --disable-demuxer=NAME   disable demuxer NAME
 172   --enable-demuxer=NAME    enable demuxer NAME
 173   --disable-demuxers       disable all demuxers
 174   --enable-parser=NAME     enable parser NAME
 175   --disable-parser=NAME    disable parser NAME
 176   --disable-parsers        disable all parsers
 177   --enable-bsf=NAME        enable bitstream filter NAME
 178   --disable-bsf=NAME       disable bitstream filter NAME
 179   --disable-bsfs           disable all bitstream filters
 180   --enable-protocol=NAME   enable protocol NAME
 181   --disable-protocol=NAME  disable protocol NAME
 182   --disable-protocols      disable all protocols
 183   --enable-indev=NAME      enable input device NAME
 184   --disable-indev=NAME     disable input device NAME
 185   --disable-indevs         disable input devices
 186   --enable-outdev=NAME     enable output device NAME
 187   --disable-outdev=NAME    disable output device NAME
 188   --disable-outdevs        disable output devices
 189   --disable-devices        disable all devices
 190   --enable-filter=NAME     enable filter NAME
 191   --disable-filter=NAME    disable filter NAME
 192   --disable-filters        disable all filters
 193
 194 External library support:
 195   --enable-avisynth        enable reading of AviSynth script files [no]
 196   --disable-bzlib          disable bzlib [autodetect]
 197   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
 198   --enable-frei0r          enable frei0r video filtering [no]
 199   --enable-gnutls          enable gnutls, needed for https support
 200                            if openssl is not used [no]
 201   --disable-iconv          disable iconv [autodetect]
 202   --enable-ladspa          enable LADSPA audio filtering [no]
 203   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 204   --enable-libass          enable libass subtitles rendering,
 205                            needed for subtitles and ass filter [no]
 206   --enable-libbluray       enable BluRay reading using libbluray [no]
 207   --enable-libbs2b         enable bs2b DSP library [no]
 208   --enable-libcaca         enable textual display using libcaca [no]
 209   --enable-libcelt         enable CELT decoding via libcelt [no]
 210   --enable-libcdio         enable audio CD grabbing with libcdio [no]
 211   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 212                            and libraw1394 [no]
 213   --enable-libfaac         enable AAC encoding via libfaac [no]
 214   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 215   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 216   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
 217   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
 218   --enable-libgme          enable Game Music Emu via libgme [no]
 219   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 220   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 221   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 222   --enable-libmfx          enable HW acceleration through libmfx
 223   --enable-libmodplug      enable ModPlug via libmodplug [no]
 224   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 225   --enable-libnut          enable NUT (de)muxing via libnut,
 226                            native (de)muxer exists [no]
 227   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 228   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 229   --enable-libopencv       enable video filtering via libopencv [no]
 230   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
 231   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 232   --enable-libopus         enable Opus de/encoding via libopus [no]
 233   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 234   --enable-libquvi         enable quvi input via libquvi [no]
 235   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 236   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 237   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 238   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 239   --enable-libsoxr         enable Include libsoxr resampling [no]
 240   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 241   --enable-libssh          enable SFTP protocol via libssh [no]
 242   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 243   --enable-libtheora       enable Theora encoding via libtheora [no]
 244   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 245   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 246   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 247   --enable-libvidstab      enable video stabilization using vid.stab [no]
 248   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 249   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 250   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 251                            native implementation exists [no]
 252   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 253   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 254   --enable-libwebp         enable WebP encoding via libwebp [no]
 255   --enable-libx264         enable H.264 encoding via x264 [no]
 256   --enable-libx265         enable HEVC encoding via x265 [no]
 257   --enable-libxavs         enable AVS encoding via xavs [no]
 258   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
 259   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
 260   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
 261   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
 262   --enable-libxvid         enable Xvid encoding via xvidcore,
 263                            native MPEG-4/Xvid encoder exists [no]
 264   --enable-libzmq          enable message passing via libzmq [no]
 265   --enable-libzvbi         enable teletext support via libzvbi [no]
 266   --disable-lzma           disable lzma [autodetect]
 267   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
 268   --enable-nvenc           enable NVIDIA NVENC support [no]
 269   --enable-openal          enable OpenAL 1.1 capture support [no]
 270   --enable-opencl          enable OpenCL code
 271   --enable-opengl          enable OpenGL rendering [no]
 272   --enable-openssl         enable openssl, needed for https support
 273                            if gnutls is not used [no]
 274   --disable-sdl            disable sdl [autodetect]
 275   --enable-x11grab         enable X11 grabbing (legacy) [no]
 276   --disable-xlib           disable xlib [autodetect]
 277   --disable-zlib           disable zlib [autodetect]
 278
 279 Toolchain options:
 280   --arch=ARCH              select architecture [$arch]
 281   --cpu=CPU                select the minimum required CPU (affects
 282                            instruction selection, may crash on older CPUs)
 283   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 284   --progs-suffix=SUFFIX    program name suffix []
 285   --enable-cross-compile   assume a cross-compiler is used
 286   --sysroot=PATH           root of cross-build tree
 287   --sysinclude=PATH        location of cross-build system headers
 288   --target-os=OS           compiler targets OS [$target_os]
 289   --target-exec=CMD        command to run executables on target
 290   --target-path=DIR        path to view of build directory on target
 291   --target-samples=DIR     path to samples directory on target
 292   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 293   --toolchain=NAME         set tool defaults according to NAME
 294   --nm=NM                  use nm tool NM [$nm_default]
 295   --ar=AR                  use archive tool AR [$ar_default]
 296   --as=AS                  use assembler AS [$as_default]
 297   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 298   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 299   --cc=CC                  use C compiler CC [$cc_default]
 300   --cxx=CXX                use C compiler CXX [$cxx_default]
 301   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 302   --ld=LD                  use linker LD [$ld_default]
 303   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 304   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 305   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 306   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 307   --host-cc=HOSTCC         use host C compiler HOSTCC
 308   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 309   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 310   --host-ld=HOSTLD         use host linker HOSTLD
 311   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 312   --host-libs=HLIBS        use libs HLIBS when linking for host
 313   --host-os=OS             compiler host OS [$target_os]
 314   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 315   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 316   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 317   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 318   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 319   --extra-version=STRING   version string suffix []
 320   --optflags=OPTFLAGS      override optimization-related compiler flags
 321   --build-suffix=SUFFIX    library name suffix []
 322   --enable-pic             build position-independent code
 323   --enable-thumb           compile for Thumb instruction set
 324   --enable-lto             use link-time optimization
 325
 326 Advanced options (experts only):
 327   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 328   --disable-symver         disable symbol versioning
 329   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 330   --disable-safe-bitstream-reader
 331                            disable buffer boundary checking in bitreaders
 332                            (faster, but may crash)
 333   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 334   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 335
 336 Optimization options (experts only):
 337   --disable-asm            disable all assembly optimizations
 338   --disable-altivec        disable AltiVec optimizations
 339   --disable-amd3dnow       disable 3DNow! optimizations
 340   --disable-amd3dnowext    disable 3DNow! extended optimizations
 341   --disable-mmx            disable MMX optimizations
 342   --disable-mmxext         disable MMXEXT optimizations
 343   --disable-sse            disable SSE optimizations
 344   --disable-sse2           disable SSE2 optimizations
 345   --disable-sse3           disable SSE3 optimizations
 346   --disable-ssse3          disable SSSE3 optimizations
 347   --disable-sse4           disable SSE4 optimizations
 348   --disable-sse42          disable SSE4.2 optimizations
 349   --disable-avx            disable AVX optimizations
 350   --disable-xop            disable XOP optimizations
 351   --disable-fma3           disable FMA3 optimizations
 352   --disable-fma4           disable FMA4 optimizations
 353   --disable-avx2           disable AVX2 optimizations
 354   --disable-armv5te        disable armv5te optimizations
 355   --disable-armv6          disable armv6 optimizations
 356   --disable-armv6t2        disable armv6t2 optimizations
 357   --disable-vfp            disable VFP optimizations
 358   --disable-neon           disable NEON optimizations
 359   --disable-inline-asm     disable use of inline assembly
 360   --disable-yasm           disable use of nasm/yasm assembly
 361   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 362   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 363   --disable-mipsfpu        disable floating point MIPS optimizations
 364   --disable-fast-unaligned consider unaligned accesses slow
 365
 366 Developer options (useful when working on FFmpeg itself):
 367   --disable-debug          disable debugging symbols
 368   --enable-debug=LEVEL     set the debug level [$debuglevel]
 369   --disable-optimizations  disable compiler optimizations
 370   --enable-extra-warnings  enable more compiler warnings
 371   --disable-stripping      disable stripping of executables and shared libraries
 372   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 373                            2 causes a slowdown at runtime.
 374   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 375   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 376                            leaks and errors, using the specified valgrind binary.
 377                            Cannot be combined with --target-exec
 378   --enable-ftrapv          Trap arithmetic overflows
 379   --samples=PATH           location of test samples for FATE, if not set use
 380                            \$FATE_SAMPLES at make invocation time.
 381   --enable-neon-clobber-test check NEON registers for clobbering (should be
 382                            used only for debugging purposes)
 383   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 384                            should be used only for debugging purposes)
 385   --enable-random          randomly enable/disable components
 386   --disable-random
 387   --enable-random=LIST     randomly enable/disable specific components or
 388   --disable-random=LIST    component groups. LIST is a comma-separated list
 389                            of NAME[:PROB] entries where NAME is a component
 390                            (group) and PROB the probability associated with
 391                            NAME (default 0.5).
 392   --random-seed=VALUE      seed value for --enable/disable-random
 393
 394 NOTE: Object files are built at the place where configure is launched.
 395 EOF
 396   exit 0
 397 }
 398
 399 quotes='""'
 400
 401 log(){
 402     echo "$@" >> $logfile
 403 }
 404
 405 log_file(){
 406     log BEGIN $1
 407     pr -n -t $1 >> $logfile
 408     log END $1
 409 }
 410
 411 echolog(){
 412     log "$@"
 413     echo "$@"
 414 }
 415
 416 warn(){
 417     log "WARNING: $*"
 418     WARNINGS="${WARNINGS}WARNING: $*\n"
 419 }
 420
 421 die(){
 422     echolog "$@"
 423     cat <<EOF
 424
 425 If you think configure made a mistake, make sure you are using the latest
 426 version from Git.  If the latest version fails, report the problem to the
 427 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 428 EOF
 429     if disabled logging; then
 430         cat <<EOF
 431 Rerun configure with logging enabled (do not use --disable-logging), and
 432 include the log this produces with your report.
 433 EOF
 434     else
 435         cat <<EOF
 436 Include the log file "$logfile" produced by configure as this will help
 437 solve the problem.
 438 EOF
 439     fi
 440     exit 1
 441 }
 442
 443 # Avoid locale weirdness, besides we really just want to translate ASCII.
 444 toupper(){
 445     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 446 }
 447
 448 tolower(){
 449     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 450 }
 451
 452 c_escape(){
 453     echo "$*" | sed 's/["\\]/\\\0/g'
 454 }
 455
 456 sh_quote(){
 457     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 458     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 459     echo "$v"
 460 }
 461
 462 cleanws(){
 463     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 464 }
 465
 466 filter(){
 467     pat=$1
 468     shift
 469     for v; do
 470         eval "case $v in $pat) echo $v ;; esac"
 471     done
 472 }
 473
 474 filter_out(){
 475     pat=$1
 476     shift
 477     for v; do
 478         eval "case $v in $pat) ;; *) echo $v ;; esac"
 479     done
 480 }
 481
 482 map(){
 483     m=$1
 484     shift
 485     for v; do eval $m; done
 486 }
 487
 488 add_suffix(){
 489     suffix=$1
 490     shift
 491     for v; do echo ${v}${suffix}; done
 492 }
 493
 494 set_all(){
 495     value=$1
 496     shift
 497     for var in $*; do
 498         eval $var=$value
 499     done
 500 }
 501
 502 set_weak(){
 503     value=$1
 504     shift
 505     for var; do
 506         eval : \${$var:=$value}
 507     done
 508 }
 509
 510 sanitize_var_name(){
 511     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 512 }
 513
 514 set_safe(){
 515     var=$1
 516     shift
 517     eval $(sanitize_var_name "$var")='$*'
 518 }
 519
 520 get_safe(){
 521     eval echo \$$(sanitize_var_name "$1")
 522 }
 523
 524 pushvar(){
 525     for pvar in $*; do
 526         eval level=\${${pvar}_level:=0}
 527         eval ${pvar}_${level}="\$$pvar"
 528         eval ${pvar}_level=$(($level+1))
 529     done
 530 }
 531
 532 popvar(){
 533     for pvar in $*; do
 534         eval level=\${${pvar}_level:-0}
 535         test $level = 0 && continue
 536         eval level=$(($level-1))
 537         eval $pvar="\${${pvar}_${level}}"
 538         eval ${pvar}_level=$level
 539         eval unset ${pvar}_${level}
 540     done
 541 }
 542
 543 enable(){
 544     set_all yes $*
 545 }
 546
 547 disable(){
 548     set_all no $*
 549 }
 550
 551 enable_weak(){
 552     set_weak yes $*
 553 }
 554
 555 disable_weak(){
 556     set_weak no $*
 557 }
 558
 559 enable_safe(){
 560     for var; do
 561         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 562     done
 563 }
 564
 565 disable_safe(){
 566     for var; do
 567         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 568     done
 569 }
 570
 571 do_enable_deep(){
 572     for var; do
 573         enabled $var && continue
 574         eval sel="\$${var}_select"
 575         eval sgs="\$${var}_suggest"
 576         pushvar var sgs
 577         enable_deep $sel
 578         popvar sgs
 579         enable_deep_weak $sgs
 580         popvar var
 581     done
 582 }
 583
 584 enable_deep(){
 585     do_enable_deep $*
 586     enable $*
 587 }
 588
 589 enable_deep_weak(){
 590     for var; do
 591         disabled $var && continue
 592         pushvar var
 593         do_enable_deep $var
 594         popvar var
 595         enable_weak $var
 596     done
 597 }
 598
 599 enabled(){
 600     test "${1#!}" = "$1" && op== || op=!=
 601     eval test "x\$${1#!}" $op "xyes"
 602 }
 603
 604 disabled(){
 605     test "${1#!}" = "$1" && op== || op=!=
 606     eval test "x\$${1#!}" $op "xno"
 607 }
 608
 609 enabled_all(){
 610     for opt; do
 611         enabled $opt || return 1
 612     done
 613 }
 614
 615 disabled_all(){
 616     for opt; do
 617         disabled $opt || return 1
 618     done
 619 }
 620
 621 enabled_any(){
 622     for opt; do
 623         enabled $opt && return 0
 624     done
 625 }
 626
 627 disabled_any(){
 628     for opt; do
 629         disabled $opt && return 0
 630     done
 631     return 1
 632 }
 633
 634 set_default(){
 635     for opt; do
 636         eval : \${$opt:=\$${opt}_default}
 637     done
 638 }
 639
 640 is_in(){
 641     value=$1
 642     shift
 643     for var in $*; do
 644         [ $var = $value ] && return 0
 645     done
 646     return 1
 647 }
 648
 649 do_check_deps(){
 650     for cfg; do
 651         cfg="${cfg#!}"
 652         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 653         disabled ${cfg}_checking && continue
 654         enable ${cfg}_checking
 655         append allopts $cfg
 656
 657         eval dep_all="\$${cfg}_deps"
 658         eval dep_any="\$${cfg}_deps_any"
 659         eval dep_sel="\$${cfg}_select"
 660         eval dep_sgs="\$${cfg}_suggest"
 661         eval dep_ifa="\$${cfg}_if"
 662         eval dep_ifn="\$${cfg}_if_any"
 663
 664         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 665         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 666         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 667
 668         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 669         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 670         enabled_all  $dep_all || disable $cfg
 671         enabled_any  $dep_any || disable $cfg
 672         disabled_any $dep_sel && disable $cfg
 673
 674         if enabled $cfg; then
 675             enable_deep $dep_sel
 676             enable_deep_weak $dep_sgs
 677         fi
 678
 679         disable ${cfg}_checking
 680     done
 681 }
 682
 683 check_deps(){
 684     unset allopts
 685
 686     do_check_deps "$@"
 687
 688     for cfg in $allopts; do
 689         enabled $cfg || continue
 690         eval dep_extralibs="\$${cfg}_extralibs"
 691         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 692     done
 693 }
 694
 695 print_config(){
 696     pfx=$1
 697     files=$2
 698     shift 2
 699     map 'eval echo "$v \${$v:-no}"' "$@" |
 700     awk "BEGIN { split(\"$files\", files) }
 701         {
 702             c = \"$pfx\" toupper(\$1);
 703             v = \$2;
 704             sub(/yes/, 1, v);
 705             sub(/no/,  0, v);
 706             for (f in files) {
 707                 file = files[f];
 708                 if (file ~ /\\.h\$/) {
 709                     printf(\"#define %s %d\\n\", c, v) >>file;
 710                 } else if (file ~ /\\.asm\$/) {
 711                     printf(\"%%define %s %d\\n\", c, v) >>file;
 712                 } else if (file ~ /\\.mak\$/) {
 713                     n = -v ? \"\" : \"!\";
 714                     printf(\"%s%s=yes\\n\", n, c) >>file;
 715                 } else if (file ~ /\\.texi\$/) {
 716                     pre = -v ? \"\" : \"@c \";
 717                     yesno = \$2;
 718                     c2 = tolower(c);
 719                     gsub(/_/, \"-\", c2);
 720                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 721                 }
 722             }
 723         }"
 724 }
 725
 726 print_enabled(){
 727     suf=$1
 728     shift
 729     for v; do
 730         enabled $v && printf "%s\n" ${v%$suf};
 731     done
 732 }
 733
 734 append(){
 735     var=$1
 736     shift
 737     eval "$var=\"\$$var $*\""
 738 }
 739
 740 prepend(){
 741     var=$1
 742     shift
 743     eval "$var=\"$* \$$var\""
 744 }
 745
 746 unique(){
 747     var=$1
 748     uniq_list=""
 749     for tok in $(eval echo \$$var); do
 750         uniq_list="$(filter_out $tok $uniq_list) $tok"
 751     done
 752     eval "$var=\"${uniq_list}\""
 753 }
 754
 755 add_cppflags(){
 756     append CPPFLAGS "$@"
 757 }
 758
 759 add_cflags(){
 760     append CFLAGS $($cflags_filter "$@")
 761 }
 762
 763 add_cxxflags(){
 764     append CXXFLAGS $($cflags_filter "$@")
 765 }
 766
 767 add_asflags(){
 768     append ASFLAGS $($asflags_filter "$@")
 769 }
 770
 771 add_ldflags(){
 772     append LDFLAGS $($ldflags_filter "$@")
 773 }
 774
 775 add_ldexeflags(){
 776     append LDEXEFLAGS $($ldflags_filter "$@")
 777 }
 778
 779 add_stripflags(){
 780     append ASMSTRIPFLAGS "$@"
 781 }
 782
 783 add_extralibs(){
 784     prepend extralibs $($ldflags_filter "$@")
 785 }
 786
 787 add_host_cppflags(){
 788     append host_cppflags "$@"
 789 }
 790
 791 add_host_cflags(){
 792     append host_cflags $($host_cflags_filter "$@")
 793 }
 794
 795 add_host_ldflags(){
 796     append host_ldflags $($host_ldflags_filter "$@")
 797 }
 798
 799 add_compat(){
 800     append compat_objs $1
 801     shift
 802     map 'add_cppflags -D$v' "$@"
 803 }
 804
 805 check_cmd(){
 806     log "$@"
 807     "$@" >> $logfile 2>&1
 808 }
 809
 810 check_stat(){
 811     log check_stat "$@"
 812     stat "$1" >> $logfile 2>&1
 813 }
 814
 815 cc_o(){
 816     eval printf '%s\\n' $CC_O
 817 }
 818
 819 cc_e(){
 820     eval printf '%s\\n' $CC_E
 821 }
 822
 823 check_cc(){
 824     log check_cc "$@"
 825     cat > $TMPC
 826     log_file $TMPC
 827     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 828 }
 829
 830 check_cxx(){
 831     log check_cxx "$@"
 832     cat > $TMPCPP
 833     log_file $TMPCPP
 834     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 835 }
 836
 837 check_oc(){
 838     log check_oc "$@"
 839     cat > $TMPM
 840     log_file $TMPM
 841     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 842 }
 843
 844 check_cpp(){
 845     log check_cpp "$@"
 846     cat > $TMPC
 847     log_file $TMPC
 848     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 849 }
 850
 851 as_o(){
 852     eval printf '%s\\n' $AS_O
 853 }
 854
 855 check_as(){
 856     log check_as "$@"
 857     cat > $TMPS
 858     log_file $TMPS
 859     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 860 }
 861
 862 check_inline_asm(){
 863     log check_inline_asm "$@"
 864     name="$1"
 865     code="$2"
 866     shift 2
 867     disable $name
 868     check_cc "$@" <<EOF && enable $name
 869 void foo(void){ __asm__ volatile($code); }
 870 EOF
 871 }
 872
 873 check_insn(){
 874     log check_insn "$@"
 875     check_inline_asm ${1}_inline "\"$2\""
 876     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 877 }
 878
 879 check_yasm(){
 880     log check_yasm "$@"
 881     echo "$1" > $TMPS
 882     log_file $TMPS
 883     shift 1
 884     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 885 }
 886
 887 ld_o(){
 888     eval printf '%s\\n' $LD_O
 889 }
 890
 891 check_ld(){
 892     log check_ld "$@"
 893     type=$1
 894     shift 1
 895     flags=$(filter_out '-l*|*.so' $@)
 896     libs=$(filter '-l*|*.so' $@)
 897     check_$type $($cflags_filter $flags) || return
 898     flags=$($ldflags_filter $flags)
 899     libs=$($ldflags_filter $libs)
 900     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 901 }
 902
 903 print_include(){
 904     hdr=$1
 905     test "${hdr%.h}" = "${hdr}" &&
 906         echo "#include $hdr"    ||
 907         echo "#include <$hdr>"
 908 }
 909
 910 check_code(){
 911     log check_code "$@"
 912     check=$1
 913     headers=$2
 914     code=$3
 915     shift 3
 916     {
 917         for hdr in $headers; do
 918             print_include $hdr
 919         done
 920         echo "int main(void) { $code; return 0; }"
 921     } | check_$check "$@"
 922 }
 923
 924 check_cppflags(){
 925     log check_cppflags "$@"
 926     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 927 int x;
 928 EOF
 929 }
 930
 931 test_cflags(){
 932     log test_cflags "$@"
 933     set -- $($cflags_filter "$@")
 934     check_cc "$@" <<EOF
 935 int x;
 936 EOF
 937 }
 938
 939 check_cflags(){
 940     log check_cflags "$@"
 941     test_cflags "$@" && add_cflags "$@"
 942 }
 943
 944 check_cxxflags(){
 945     log check_cxxflags "$@"
 946     set -- $($cflags_filter "$@")
 947     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 948 int x;
 949 EOF
 950 }
 951
 952 test_ldflags(){
 953     log test_ldflags "$@"
 954     check_ld "cc" "$@" <<EOF
 955 int main(void){ return 0; }
 956 EOF
 957 }
 958
 959 check_ldflags(){
 960     log check_ldflags "$@"
 961     test_ldflags "$@" && add_ldflags "$@"
 962 }
 963
 964 test_stripflags(){
 965     log test_stripflags "$@"
 966     # call check_cc to get a fresh TMPO
 967     check_cc <<EOF
 968 int main(void) { return 0; }
 969 EOF
 970     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 971 }
 972
 973 check_stripflags(){
 974     log check_stripflags "$@"
 975     test_stripflags "$@" && add_stripflags "$@"
 976 }
 977
 978 check_header(){
 979     log check_header "$@"
 980     header=$1
 981     shift
 982     disable_safe $header
 983     check_cpp "$@" <<EOF && enable_safe $header
 984 #include <$header>
 985 int x;
 986 EOF
 987 }
 988
 989 check_header_oc(){
 990     log check_header_oc "$@"
 991     rm -f -- "$TMPO"
 992     header=$1
 993     shift
 994     disable_safe $header
 995     {
 996        echo "#include <$header>"
 997        echo "int main(void) { return 0; }"
 998     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 999 }
1000
1001 check_func(){
1002     log check_func "$@"
1003     func=$1
1004     shift
1005     disable $func
1006     check_ld "cc" "$@" <<EOF && enable $func
1007 extern int $func();
1008 int main(void){ $func(); }
1009 EOF
1010 }
1011
1012 check_mathfunc(){
1013     log check_mathfunc "$@"
1014     func=$1
1015     narg=$2
1016     shift 2
1017     test $narg = 2 && args="f, g" || args="f"
1018     disable $func
1019     check_ld "cc" "$@" <<EOF && enable $func
1020 #include <math.h>
1021 float foo(float f, float g) { return $func($args); }
1022 int main(void){ return (int) foo; }
1023 EOF
1024 }
1025
1026 check_func_headers(){
1027     log check_func_headers "$@"
1028     headers=$1
1029     funcs=$2
1030     shift 2
1031     {
1032         for hdr in $headers; do
1033             print_include $hdr
1034         done
1035         for func in $funcs; do
1036             echo "long check_$func(void) { return (long) $func; }"
1037         done
1038         echo "int main(void) { return 0; }"
1039     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1040 }
1041
1042 check_class_headers_cpp(){
1043     log check_class_headers_cpp "$@"
1044     headers=$1
1045     classes=$2
1046     shift 2
1047     {
1048         for hdr in $headers; do
1049             echo "#include <$hdr>"
1050         done
1051         echo "int main(void) { "
1052         i=1
1053         for class in $classes; do
1054             echo "$class obj$i;"
1055             i=$(expr $i + 1)
1056         done
1057         echo "return 0; }"
1058     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1059 }
1060
1061 check_cpp_condition(){
1062     log check_cpp_condition "$@"
1063     header=$1
1064     condition=$2
1065     shift 2
1066     check_cpp "$@" <<EOF
1067 #include <$header>
1068 #if !($condition)
1069 #error "unsatisfied condition: $condition"
1070 #endif
1071 EOF
1072 }
1073
1074 check_lib(){
1075     log check_lib "$@"
1076     header="$1"
1077     func="$2"
1078     shift 2
1079     check_header $header && check_func $func "$@" && add_extralibs "$@"
1080 }
1081
1082 check_lib2(){
1083     log check_lib2 "$@"
1084     headers="$1"
1085     funcs="$2"
1086     shift 2
1087     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1088 }
1089
1090 check_lib_cpp(){
1091     log check_lib_cpp "$@"
1092     headers="$1"
1093     classes="$2"
1094     shift 2
1095     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1096 }
1097
1098 check_pkg_config(){
1099     log check_pkg_config "$@"
1100     pkgandversion="$1"
1101     pkg="${1%% *}"
1102     headers="$2"
1103     funcs="$3"
1104     shift 3
1105     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1106     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1107     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1108     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1109         set_safe ${pkg}_cflags $pkg_cflags   &&
1110         set_safe ${pkg}_libs   $pkg_libs
1111 }
1112
1113 check_exec(){
1114     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1115 }
1116
1117 check_exec_crash(){
1118     code=$(cat)
1119
1120     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1121     # are safe but may not be available everywhere.  Thus we use
1122     # raise(SIGTERM) instead.  The check is run in a subshell so we
1123     # can redirect the "Terminated" message from the shell.  SIGBUS
1124     # is not defined by standard C so it is used conditionally.
1125
1126     (check_exec "$@") >> $logfile 2>&1 <<EOF
1127 #include <signal.h>
1128 static void sighandler(int sig){
1129     raise(SIGTERM);
1130 }
1131 int foo(void){
1132     $code
1133 }
1134 int (*func_ptr)(void) = foo;
1135 int main(void){
1136     signal(SIGILL, sighandler);
1137     signal(SIGFPE, sighandler);
1138     signal(SIGSEGV, sighandler);
1139 #ifdef SIGBUS
1140     signal(SIGBUS, sighandler);
1141 #endif
1142     return func_ptr();
1143 }
1144 EOF
1145 }
1146
1147 check_type(){
1148     log check_type "$@"
1149     headers=$1
1150     type=$2
1151     shift 2
1152     disable_safe "$type"
1153     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1154 }
1155
1156 check_struct(){
1157     log check_struct "$@"
1158     headers=$1
1159     struct=$2
1160     member=$3
1161     shift 3
1162     disable_safe "${struct}_${member}"
1163     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1164         enable_safe "${struct}_${member}"
1165 }
1166
1167 check_builtin(){
1168     log check_builtin "$@"
1169     name=$1
1170     headers=$2
1171     builtin=$3
1172     shift 3
1173     disable "$name"
1174     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1175 }
1176
1177 check_compile_assert(){
1178     log check_compile_assert "$@"
1179     name=$1
1180     headers=$2
1181     condition=$3
1182     shift 3
1183     disable "$name"
1184     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1185 }
1186
1187 require(){
1188     name="$1"
1189     header="$2"
1190     func="$3"
1191     shift 3
1192     check_lib $header $func "$@" || die "ERROR: $name not found"
1193 }
1194
1195 require2(){
1196     name="$1"
1197     headers="$2"
1198     func="$3"
1199     shift 3
1200     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1201 }
1202
1203 require_cpp(){
1204     name="$1"
1205     headers="$2"
1206     classes="$3"
1207     shift 3
1208     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1209 }
1210
1211 use_pkg_config(){
1212     pkg="$1"
1213     check_pkg_config "$@" || return 1
1214     add_cflags    $(get_safe ${pkg}_cflags)
1215     add_extralibs $(get_safe ${pkg}_libs)
1216 }
1217
1218 require_pkg_config(){
1219     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1220 }
1221
1222 require_libfreetype(){
1223     log require_libfreetype "$@"
1224     pkg="freetype2"
1225     check_cmd $pkg_config --exists --print-errors $pkg \
1226       || die "ERROR: $pkg not found"
1227     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1228     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1229     {
1230         echo "#include <ft2build.h>"
1231         echo "#include FT_FREETYPE_H"
1232         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1233         echo "int main(void) { return 0; }"
1234     } | check_ld "cc" $pkg_cflags $pkg_libs \
1235       && set_safe ${pkg}_cflags $pkg_cflags \
1236       && set_safe ${pkg}_libs   $pkg_libs \
1237       || die "ERROR: $pkg not found"
1238     add_cflags    $(get_safe ${pkg}_cflags)
1239     add_extralibs $(get_safe ${pkg}_libs)
1240 }
1241
1242 hostcc_e(){
1243     eval printf '%s\\n' $HOSTCC_E
1244 }
1245
1246 hostcc_o(){
1247     eval printf '%s\\n' $HOSTCC_O
1248 }
1249
1250 check_host_cc(){
1251     log check_host_cc "$@"
1252     cat > $TMPC
1253     log_file $TMPC
1254     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1255 }
1256
1257 check_host_cpp(){
1258     log check_host_cpp "$@"
1259     cat > $TMPC
1260     log_file $TMPC
1261     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1262 }
1263
1264 check_host_cppflags(){
1265     log check_host_cppflags "$@"
1266     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1267 int x;
1268 EOF
1269 }
1270
1271 check_host_cflags(){
1272     log check_host_cflags "$@"
1273     set -- $($host_cflags_filter "$@")
1274     check_host_cc "$@" <<EOF && append host_cflags "$@"
1275 int x;
1276 EOF
1277 }
1278
1279 check_host_cpp_condition(){
1280     log check_host_cpp_condition "$@"
1281     header=$1
1282     condition=$2
1283     shift 2
1284     check_host_cpp "$@" <<EOF
1285 #include <$header>
1286 #if !($condition)
1287 #error "unsatisfied condition: $condition"
1288 #endif
1289 EOF
1290 }
1291
1292 apply(){
1293     file=$1
1294     shift
1295     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1296 }
1297
1298 cp_if_changed(){
1299     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1300     mkdir -p "$(dirname $2)"
1301     $cp_f "$1" "$2"
1302 }
1303
1304 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1305 # system-dependent things.
1306
1307 COMPONENT_LIST="
1308     bsfs
1309     decoders
1310     demuxers
1311     encoders
1312     filters
1313     hwaccels
1314     indevs
1315     muxers
1316     outdevs
1317     parsers
1318     protocols
1319 "
1320
1321 EXAMPLE_LIST="
1322     avio_reading_example
1323     decoding_encoding_example
1324     demuxing_decoding_example
1325     extract_mvs_example
1326     filter_audio_example
1327     filtering_audio_example
1328     filtering_video_example
1329     metadata_example
1330     muxing_example
1331     qsvdec_example
1332     remuxing_example
1333     resampling_audio_example
1334     scaling_video_example
1335     transcode_aac_example
1336     transcoding_example
1337 "
1338
1339 EXTERNAL_LIBRARY_LIST="
1340     avisynth
1341     bzlib
1342     crystalhd
1343     decklink
1344     frei0r
1345     gnutls
1346     iconv
1347     ladspa
1348     libaacplus
1349     libass
1350     libbluray
1351     libbs2b
1352     libcaca
1353     libcdio
1354     libcelt
1355     libdc1394
1356     libfaac
1357     libfdk_aac
1358     libflite
1359     libfontconfig
1360     libfreetype
1361     libfribidi
1362     libgme
1363     libgsm
1364     libiec61883
1365     libilbc
1366     libmfx
1367     libmodplug
1368     libmp3lame
1369     libnut
1370     libopencore_amrnb
1371     libopencore_amrwb
1372     libopencv
1373     libopenh264
1374     libopenjpeg
1375     libopus
1376     libpulse
1377     libquvi
1378     librtmp
1379     libschroedinger
1380     libshine
1381     libsmbclient
1382     libsoxr
1383     libspeex
1384     libssh
1385     libstagefright_h264
1386     libtheora
1387     libtwolame
1388     libutvideo
1389     libv4l2
1390     libvidstab
1391     libvo_aacenc
1392     libvo_amrwbenc
1393     libvorbis
1394     libvpx
1395     libwavpack
1396     libwebp
1397     libx264
1398     libx265
1399     libxavs
1400     libxcb
1401     libxcb_shm
1402     libxcb_shape
1403     libxcb_xfixes
1404     libxvid
1405     libzmq
1406     libzvbi
1407     lzma
1408     nvenc
1409     openal
1410     opencl
1411     opengl
1412     openssl
1413     sdl
1414     x11grab
1415     xlib
1416     zlib
1417 "
1418
1419 DOCUMENT_LIST="
1420     doc
1421     htmlpages
1422     manpages
1423     podpages
1424     txtpages
1425 "
1426
1427 FEATURE_LIST="
1428     ftrapv
1429     gray
1430     hardcoded_tables
1431     runtime_cpudetect
1432     safe_bitstream_reader
1433     shared
1434     small
1435     static
1436     swscale_alpha
1437 "
1438
1439 HWACCEL_LIST="
1440     dxva2
1441     vaapi
1442     vda
1443     vdpau
1444     xvmc
1445 "
1446
1447 LIBRARY_LIST="
1448     avcodec
1449     avdevice
1450     avfilter
1451     avformat
1452     avresample
1453     avutil
1454     postproc
1455     swresample
1456     swscale
1457 "
1458
1459 LICENSE_LIST="
1460     gpl
1461     nonfree
1462     version3
1463 "
1464
1465 PROGRAM_LIST="
1466     ffplay
1467     ffprobe
1468     ffserver
1469     ffmpeg
1470 "
1471
1472 SUBSYSTEM_LIST="
1473     dct
1474     dwt
1475     error_resilience
1476     faan
1477     fast_unaligned
1478     fft
1479     lsp
1480     lzo
1481     mdct
1482     pixelutils
1483     network
1484     qsv
1485     rdft
1486 "
1487
1488 CONFIG_LIST="
1489     $COMPONENT_LIST
1490     $DOCUMENT_LIST
1491     $EXAMPLE_LIST
1492     $EXTERNAL_LIBRARY_LIST
1493     $FEATURE_LIST
1494     $HWACCEL_LIST
1495     $LICENSE_LIST
1496     $LIBRARY_LIST
1497     $PROGRAM_LIST
1498     $SUBSYSTEM_LIST
1499     fontconfig
1500     incompatible_libav_abi
1501     memalign_hack
1502     memory_poisoning
1503     neon_clobber_test
1504     pic
1505     pod2man
1506     raise_major
1507     thumb
1508     xmm_clobber_test
1509 "
1510
1511 THREADS_LIST="
1512     pthreads
1513     os2threads
1514     w32threads
1515 "
1516
1517 ATOMICS_LIST="
1518     atomics_gcc
1519     atomics_suncc
1520     atomics_win32
1521 "
1522
1523 ARCH_LIST="
1524     aarch64
1525     alpha
1526     arm
1527     avr32
1528     avr32_ap
1529     avr32_uc
1530     bfin
1531     ia64
1532     m68k
1533     mips
1534     mips64
1535     parisc
1536     ppc
1537     ppc64
1538     s390
1539     sh4
1540     sparc
1541     sparc64
1542     tilegx
1543     tilepro
1544     tomi
1545     x86
1546     x86_32
1547     x86_64
1548 "
1549
1550 ARCH_EXT_LIST_ARM="
1551     armv5te
1552     armv6
1553     armv6t2
1554     armv8
1555     neon
1556     vfp
1557     vfpv3
1558     setend
1559 "
1560
1561 ARCH_EXT_LIST_MIPS="
1562     mipsfpu
1563     mips32r2
1564     mipsdspr1
1565     mipsdspr2
1566 "
1567
1568 ARCH_EXT_LIST_X86_SIMD="
1569     amd3dnow
1570     amd3dnowext
1571     avx
1572     avx2
1573     fma3
1574     fma4
1575     mmx
1576     mmxext
1577     sse
1578     sse2
1579     sse3
1580     sse4
1581     sse42
1582     ssse3
1583     xop
1584 "
1585
1586 ARCH_EXT_LIST_PPC="
1587     altivec
1588     dcbzl
1589     ldbrx
1590     ppc4xx
1591     vsx
1592 "
1593
1594 ARCH_EXT_LIST_X86="
1595     $ARCH_EXT_LIST_X86_SIMD
1596     cpunop
1597     i686
1598 "
1599
1600 ARCH_EXT_LIST="
1601     $ARCH_EXT_LIST_ARM
1602     $ARCH_EXT_LIST_PPC
1603     $ARCH_EXT_LIST_X86
1604     $ARCH_EXT_LIST_MIPS
1605     loongson
1606 "
1607
1608 ARCH_FEATURES="
1609     aligned_stack
1610     fast_64bit
1611     fast_clz
1612     fast_cmov
1613     local_aligned_8
1614     local_aligned_16
1615     local_aligned_32
1616     simd_align_16
1617 "
1618
1619 BUILTIN_LIST="
1620     atomic_cas_ptr
1621     atomic_compare_exchange
1622     machine_rw_barrier
1623     MemoryBarrier
1624     mm_empty
1625     rdtsc
1626     sarestart
1627     sync_val_compare_and_swap
1628 "
1629 HAVE_LIST_CMDLINE="
1630     inline_asm
1631     symver
1632     yasm
1633 "
1634
1635 HAVE_LIST_PUB="
1636     bigendian
1637     fast_unaligned
1638     incompatible_libav_abi
1639 "
1640
1641 HEADERS_LIST="
1642     alsa_asoundlib_h
1643     altivec_h
1644     arpa_inet_h
1645     asm_types_h
1646     cdio_paranoia_h
1647     cdio_paranoia_paranoia_h
1648     dev_bktr_ioctl_bt848_h
1649     dev_bktr_ioctl_meteor_h
1650     dev_ic_bt8xx_h
1651     dev_video_bktr_ioctl_bt848_h
1652     dev_video_meteor_ioctl_meteor_h
1653     direct_h
1654     dlfcn_h
1655     dxva_h
1656     ES2_gl_h
1657     gsm_h
1658     io_h
1659     mach_mach_time_h
1660     machine_ioctl_bt848_h
1661     machine_ioctl_meteor_h
1662     malloc_h
1663     openjpeg_1_5_openjpeg_h
1664     OpenGL_gl3_h
1665     poll_h
1666     sndio_h
1667     soundcard_h
1668     sys_mman_h
1669     sys_param_h
1670     sys_resource_h
1671     sys_select_h
1672     sys_soundcard_h
1673     sys_time_h
1674     sys_un_h
1675     sys_videoio_h
1676     termios_h
1677     udplite_h
1678     unistd_h
1679     windows_h
1680     winsock2_h
1681 "
1682
1683 INTRINSICS_LIST="
1684     intrinsics_neon
1685 "
1686
1687 MATH_FUNCS="
1688     atanf
1689     atan2f
1690     cbrt
1691     cbrtf
1692     cosf
1693     exp2
1694     exp2f
1695     expf
1696     isinf
1697     isnan
1698     ldexpf
1699     llrint
1700     llrintf
1701     log2
1702     log2f
1703     log10f
1704     lrint
1705     lrintf
1706     powf
1707     rint
1708     round
1709     roundf
1710     sinf
1711     trunc
1712     truncf
1713 "
1714
1715 SYSTEM_FUNCS="
1716     access
1717     aligned_malloc
1718     clock_gettime
1719     closesocket
1720     CommandLineToArgvW
1721     CoTaskMemFree
1722     CryptGenRandom
1723     dlopen
1724     fcntl
1725     flt_lim
1726     fork
1727     getaddrinfo
1728     gethrtime
1729     getopt
1730     GetProcessAffinityMask
1731     GetProcessMemoryInfo
1732     GetProcessTimes
1733     getrusage
1734     getservbyport
1735     GetSystemTimeAsFileTime
1736     gettimeofday
1737     glob
1738     glXGetProcAddress
1739     gmtime_r
1740     inet_aton
1741     isatty
1742     jack_port_get_latency_range
1743     kbhit
1744     localtime_r
1745     lzo1x_999_compress
1746     mach_absolute_time
1747     MapViewOfFile
1748     memalign
1749     mkstemp
1750     mmap
1751     mprotect
1752     nanosleep
1753     PeekNamedPipe
1754     posix_memalign
1755     pthread_cancel
1756     sched_getaffinity
1757     SetConsoleTextAttribute
1758     setmode
1759     setrlimit
1760     Sleep
1761     strerror_r
1762     sysconf
1763     sysctl
1764     usleep
1765     VirtualAlloc
1766     wglGetProcAddress
1767 "
1768
1769 TOOLCHAIN_FEATURES="
1770     as_dn_directive
1771     as_func
1772     as_object_arch
1773     asm_mod_q
1774     attribute_may_alias
1775     attribute_packed
1776     ebp_available
1777     ebx_available
1778     gnu_as
1779     gnu_windres
1780     ibm_asm
1781     inline_asm_labels
1782     inline_asm_nonlocal_labels
1783     inline_asm_direct_symbol_refs
1784     pragma_deprecated
1785     rsync_contimeout
1786     symver_asm_label
1787     symver_gnu_asm
1788     vfp_args
1789     xform_asm
1790     xmm_clobbers
1791 "
1792
1793 TYPES_LIST="
1794     CONDITION_VARIABLE_Ptr
1795     DXVA_PicParams_HEVC
1796     socklen_t
1797     struct_addrinfo
1798     struct_group_source_req
1799     struct_ip_mreq_source
1800     struct_ipv6_mreq
1801     struct_pollfd
1802     struct_rusage_ru_maxrss
1803     struct_sctp_event_subscribe
1804     struct_sockaddr_in6
1805     struct_sockaddr_sa_len
1806     struct_sockaddr_storage
1807     struct_stat_st_mtim_tv_nsec
1808     struct_v4l2_frmivalenum_discrete
1809 "
1810
1811 HAVE_LIST="
1812     $ARCH_EXT_LIST
1813     $(add_suffix _external $ARCH_EXT_LIST)
1814     $(add_suffix _inline   $ARCH_EXT_LIST)
1815     $ARCH_FEATURES
1816     $ATOMICS_LIST
1817     $BUILTIN_LIST
1818     $HAVE_LIST_CMDLINE
1819     $HAVE_LIST_PUB
1820     $HEADERS_LIST
1821     $INTRINSICS_LIST
1822     $MATH_FUNCS
1823     $SYSTEM_FUNCS
1824     $THREADS_LIST
1825     $TOOLCHAIN_FEATURES
1826     $TYPES_LIST
1827     atomics_native
1828     dos_paths
1829     dxva2api_cobj
1830     dxva2_lib
1831     libc_msvcrt
1832     libdc1394_1
1833     libdc1394_2
1834     makeinfo
1835     makeinfo_html
1836     perl
1837     pod2man
1838     sdl
1839     section_data_rel_ro
1840     texi2html
1841     threads
1842     vaapi_x11
1843     vdpau_x11
1844     xlib
1845 "
1846
1847 # options emitted with CONFIG_ prefix but not available on the command line
1848 CONFIG_EXTRA="
1849     aandcttables
1850     ac3dsp
1851     audio_frame_queue
1852     audiodsp
1853     blockdsp
1854     bswapdsp
1855     cabac
1856     dvprofile
1857     exif
1858     faandct
1859     faanidct
1860     fdctdsp
1861     fmtconvert
1862     frame_thread_encoder
1863     gcrypt
1864     golomb
1865     gplv3
1866     h263dsp
1867     h264chroma
1868     h264dsp
1869     h264pred
1870     h264qpel
1871     hpeldsp
1872     huffman
1873     huffyuvdsp
1874     huffyuvencdsp
1875     idctdsp
1876     iirfilter
1877     imdct15
1878     intrax8
1879     lgplv3
1880     llauddsp
1881     llviddsp
1882     lpc
1883     me_cmp
1884     mpeg_er
1885     mpegaudio
1886     mpegaudiodsp
1887     mpegvideo
1888     mpegvideoenc
1889     nettle
1890     pixblockdsp
1891     qpeldsp
1892     rangecoder
1893     riffdec
1894     riffenc
1895     rtpdec
1896     rtpenc_chain
1897     sinewin
1898     startcode
1899     tpeldsp
1900     videodsp
1901     vp3dsp
1902     wma_freqs
1903 "
1904
1905 CMDLINE_SELECT="
1906     $ARCH_EXT_LIST
1907     $CONFIG_LIST
1908     $HAVE_LIST_CMDLINE
1909     $THREADS_LIST
1910     asm
1911     cross_compile
1912     debug
1913     extra_warnings
1914     logging
1915     lto
1916     optimizations
1917     rpath
1918     stripping
1919 "
1920
1921 PATHS_LIST="
1922     bindir
1923     datadir
1924     docdir
1925     incdir
1926     libdir
1927     mandir
1928     prefix
1929     shlibdir
1930 "
1931
1932 CMDLINE_SET="
1933     $PATHS_LIST
1934     ar
1935     arch
1936     as
1937     assert_level
1938     build_suffix
1939     cc
1940     cpu
1941     cross_prefix
1942     cxx
1943     dep_cc
1944     doxygen
1945     extra_version
1946     gas
1947     host_cc
1948     host_cflags
1949     host_ld
1950     host_ldflags
1951     host_libs
1952     host_os
1953     install
1954     ld
1955     logfile
1956     malloc_prefix
1957     nm
1958     optflags
1959     pkg_config
1960     pkg_config_flags
1961     progs_suffix
1962     random_seed
1963     ranlib
1964     samples
1965     strip
1966     sws_max_filter_size
1967     sysinclude
1968     sysroot
1969     target_exec
1970     target_os
1971     target_path
1972     target_samples
1973     tempprefix
1974     toolchain
1975     valgrind
1976     yasmexe
1977 "
1978
1979 CMDLINE_APPEND="
1980     extra_cflags
1981     extra_cxxflags
1982     host_cppflags
1983 "
1984
1985 # code dependency declarations
1986
1987 # architecture extensions
1988
1989 armv5te_deps="arm"
1990 armv6_deps="arm"
1991 armv6t2_deps="arm"
1992 armv8_deps="aarch64"
1993 neon_deps_any="aarch64 arm"
1994 intrinsics_neon_deps="neon"
1995 vfp_deps_any="aarch64 arm"
1996 vfpv3_deps="vfp"
1997 setend_deps="arm"
1998
1999 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2000
2001 mipsfpu_deps="mips"
2002 mipsdspr1_deps="mips"
2003 mipsdspr2_deps="mips"
2004
2005 altivec_deps="ppc"
2006 ppc4xx_deps="ppc"
2007 vsx_deps="ppc"
2008
2009 cpunop_deps="i686"
2010 x86_64_select="i686"
2011 x86_64_suggest="fast_cmov"
2012
2013 amd3dnow_deps="mmx"
2014 amd3dnowext_deps="amd3dnow"
2015 i686_deps="x86"
2016 mmx_deps="x86"
2017 mmxext_deps="mmx"
2018 sse_deps="mmxext"
2019 sse2_deps="sse"
2020 sse3_deps="sse2"
2021 ssse3_deps="sse3"
2022 sse4_deps="ssse3"
2023 sse42_deps="sse4"
2024 avx_deps="sse42"
2025 xop_deps="avx"
2026 fma3_deps="avx"
2027 fma4_deps="avx"
2028 avx2_deps="avx"
2029
2030 mmx_external_deps="yasm"
2031 mmx_inline_deps="inline_asm"
2032 mmx_suggest="mmx_external mmx_inline"
2033
2034 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2035     eval dep=\$${ext}_deps
2036     eval ${ext}_external_deps='"${dep}_external"'
2037     eval ${ext}_inline_deps='"${dep}_inline"'
2038     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2039 done
2040
2041 aligned_stack_if_any="aarch64 ppc x86"
2042 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2043 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2044 fast_unaligned_if_any="aarch64 ppc x86"
2045 simd_align_16_if_any="altivec neon sse"
2046
2047 # system capabilities
2048
2049 symver_if_any="symver_asm_label symver_gnu_asm"
2050
2051 # threading support
2052 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2053 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2054 atomics_win32_if="MemoryBarrier"
2055 atomics_native_if_any="$ATOMICS_LIST"
2056 w32threads_deps="atomics_native"
2057 threads_if_any="$THREADS_LIST"
2058
2059 # subsystems
2060 dct_select="rdft"
2061 error_resilience_select="me_cmp"
2062 faandct_deps="faan fdctdsp"
2063 faanidct_deps="faan idctdsp"
2064 frame_thread_encoder_deps="encoders threads"
2065 intrax8_select="error_resilience"
2066 mdct_select="fft"
2067 rdft_select="fft"
2068 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2069 mpeg_er_select="error_resilience"
2070 mpegaudio_select="mpegaudiodsp"
2071 mpegaudiodsp_select="dct"
2072 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2073 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2074
2075 # decoders / encoders
2076 aac_decoder_select="imdct15 mdct sinewin"
2077 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2078 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2079 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2080 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2081 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2082 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2083 aic_decoder_select="golomb idctdsp"
2084 alac_encoder_select="lpc"
2085 als_decoder_select="bswapdsp"
2086 amrnb_decoder_select="lsp"
2087 amrwb_decoder_select="lsp"
2088 amv_decoder_select="sp5x_decoder exif"
2089 amv_encoder_select="aandcttables mpegvideoenc"
2090 ape_decoder_select="bswapdsp llauddsp"
2091 apng_decoder_select="zlib"
2092 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2093 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2094 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2095 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2096 atrac1_decoder_select="mdct sinewin"
2097 atrac3_decoder_select="mdct"
2098 atrac3p_decoder_select="mdct sinewin"
2099 avrn_decoder_select="exif"
2100 bink_decoder_select="blockdsp hpeldsp"
2101 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2102 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2103 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2104 cllc_decoder_select="bswapdsp"
2105 comfortnoise_encoder_select="lpc"
2106 cook_decoder_select="audiodsp mdct sinewin"
2107 cscd_decoder_select="lzo"
2108 cscd_decoder_suggest="zlib"
2109 dca_decoder_select="fmtconvert mdct"
2110 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2111 dnxhd_decoder_select="blockdsp idctdsp"
2112 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2113 dvvideo_decoder_select="dvprofile idctdsp"
2114 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2115 dxa_decoder_select="zlib"
2116 eac3_decoder_select="ac3_decoder"
2117 eac3_encoder_select="ac3_encoder"
2118 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2119 eatgq_decoder_select="aandcttables"
2120 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2121 exr_decoder_select="zlib"
2122 ffv1_decoder_select="golomb rangecoder"
2123 ffv1_encoder_select="rangecoder"
2124 ffvhuff_decoder_select="huffyuv_decoder"
2125 ffvhuff_encoder_select="huffyuv_encoder"
2126 fic_decoder_select="golomb"
2127 flac_decoder_select="golomb"
2128 flac_encoder_select="bswapdsp golomb lpc"
2129 flashsv_decoder_select="zlib"
2130 flashsv_encoder_select="zlib"
2131 flashsv2_encoder_select="zlib"
2132 flashsv2_decoder_select="zlib"
2133 flv_decoder_select="h263_decoder"
2134 flv_encoder_select="h263_encoder"
2135 fourxm_decoder_select="blockdsp bswapdsp"
2136 fraps_decoder_select="bswapdsp huffman"
2137 g2m_decoder_select="blockdsp idctdsp zlib"
2138 g729_decoder_select="audiodsp"
2139 h261_decoder_select="mpeg_er mpegvideo"
2140 h261_encoder_select="aandcttables mpegvideoenc"
2141 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2142 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2143 h263i_decoder_select="h263_decoder"
2144 h263p_encoder_select="h263_encoder"
2145 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2146 h264_decoder_suggest="error_resilience"
2147 h264_qsv_decoder_deps="libmfx"
2148 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsv h264_qsv_hwaccel"
2149 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2150 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2151 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2152 iac_decoder_select="imc_decoder"
2153 imc_decoder_select="bswapdsp fft mdct sinewin"
2154 indeo3_decoder_select="hpeldsp"
2155 interplay_video_decoder_select="hpeldsp"
2156 jpegls_decoder_select="golomb mjpeg_decoder"
2157 jpegls_encoder_select="golomb"
2158 jv_decoder_select="blockdsp"
2159 lagarith_decoder_select="huffyuvdsp"
2160 ljpeg_encoder_select="aandcttables idctdsp"
2161 loco_decoder_select="golomb"
2162 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2163 metasound_decoder_select="lsp mdct sinewin"
2164 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2165 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2166 mjpeg_encoder_select="aandcttables mpegvideoenc"
2167 mjpegb_decoder_select="mjpeg_decoder"
2168 mlp_decoder_select="mlp_parser"
2169 motionpixels_decoder_select="bswapdsp"
2170 mp1_decoder_select="mpegaudio"
2171 mp1float_decoder_select="mpegaudio"
2172 mp2_decoder_select="mpegaudio"
2173 mp2float_decoder_select="mpegaudio"
2174 mp3_decoder_select="mpegaudio"
2175 mp3adu_decoder_select="mpegaudio"
2176 mp3adufloat_decoder_select="mpegaudio"
2177 mp3float_decoder_select="mpegaudio"
2178 mp3on4_decoder_select="mpegaudio"
2179 mp3on4float_decoder_select="mpegaudio"
2180 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2181 mpc8_decoder_select="mpegaudiodsp"
2182 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2183 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2184 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2185 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2186 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2187 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2188 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2189 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2190 mpeg4_encoder_select="h263_encoder"
2191 msmpeg4v1_decoder_select="h263_decoder"
2192 msmpeg4v2_decoder_select="h263_decoder"
2193 msmpeg4v2_encoder_select="h263_encoder"
2194 msmpeg4v3_decoder_select="h263_decoder"
2195 msmpeg4v3_encoder_select="h263_encoder"
2196 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2197 mxpeg_decoder_select="mjpeg_decoder"
2198 nellymoser_decoder_select="mdct sinewin"
2199 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2200 nuv_decoder_select="idctdsp lzo"
2201 on2avc_decoder_select="mdct"
2202 opus_decoder_deps="swresample"
2203 opus_decoder_select="imdct15"
2204 png_decoder_select="zlib"
2205 png_encoder_select="huffyuvencdsp zlib"
2206 prores_decoder_select="blockdsp idctdsp"
2207 prores_encoder_select="fdctdsp"
2208 qcelp_decoder_select="lsp"
2209 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2210 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2211 ra_144_decoder_select="audiodsp"
2212 ralf_decoder_select="golomb"
2213 rawvideo_decoder_select="bswapdsp"
2214 rtjpeg_decoder_select="me_cmp"
2215 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2216 rv10_encoder_select="h263_encoder"
2217 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2218 rv20_encoder_select="h263_encoder"
2219 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2220 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2221 shorten_decoder_select="golomb"
2222 sipr_decoder_select="lsp"
2223 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2224 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2225 sonic_decoder_select="golomb rangecoder"
2226 sonic_encoder_select="golomb rangecoder"
2227 sonic_ls_encoder_select="golomb rangecoder"
2228 sp5x_decoder_select="mjpeg_decoder"
2229 svq1_decoder_select="hpeldsp"
2230 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2231 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2232 svq3_decoder_suggest="zlib"
2233 tak_decoder_select="audiodsp"
2234 theora_decoder_select="vp3_decoder"
2235 thp_decoder_select="mjpeg_decoder"
2236 tiff_decoder_suggest="zlib lzma"
2237 tiff_encoder_suggest="zlib"
2238 truehd_decoder_select="mlp_parser"
2239 truemotion2_decoder_select="bswapdsp"
2240 truespeech_decoder_select="bswapdsp"
2241 tscc_decoder_select="zlib"
2242 twinvq_decoder_select="mdct lsp sinewin"
2243 utvideo_decoder_select="bswapdsp"
2244 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2245 vble_decoder_select="huffyuvdsp"
2246 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2247 vc1image_decoder_select="vc1_decoder"
2248 vorbis_decoder_select="mdct"
2249 vorbis_encoder_select="mdct"
2250 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2251 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2252 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2253 vp6a_decoder_select="vp6_decoder"
2254 vp6f_decoder_select="vp6_decoder"
2255 vp7_decoder_select="h264pred videodsp"
2256 vp8_decoder_select="h264pred videodsp"
2257 vp9_decoder_select="videodsp vp9_parser"
2258 webp_decoder_select="vp8_decoder"
2259 wmalossless_decoder_select="llauddsp"
2260 wmapro_decoder_select="mdct sinewin wma_freqs"
2261 wmav1_decoder_select="mdct sinewin wma_freqs"
2262 wmav1_encoder_select="mdct sinewin wma_freqs"
2263 wmav2_decoder_select="mdct sinewin wma_freqs"
2264 wmav2_encoder_select="mdct sinewin wma_freqs"
2265 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2266 wmv1_decoder_select="h263_decoder"
2267 wmv1_encoder_select="h263_encoder"
2268 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2269 wmv2_encoder_select="h263_encoder"
2270 wmv3_decoder_select="vc1_decoder"
2271 wmv3image_decoder_select="wmv3_decoder"
2272 zerocodec_decoder_select="zlib"
2273 zlib_decoder_select="zlib"
2274 zlib_encoder_select="zlib"
2275 zmbv_decoder_select="zlib"
2276 zmbv_encoder_select="zlib"
2277
2278 # hardware accelerators
2279 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2280 dxva2_deps="dxva2api_h"
2281 vaapi_deps="va_va_h"
2282 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2283 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2284 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2285 xvmc_deps="X11_extensions_XvMClib_h"
2286
2287 h263_vaapi_hwaccel_deps="vaapi"
2288 h263_vaapi_hwaccel_select="h263_decoder"
2289 h263_vdpau_hwaccel_deps="vdpau"
2290 h263_vdpau_hwaccel_select="h263_decoder"
2291 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2292 h264_dxva2_hwaccel_deps="dxva2"
2293 h264_dxva2_hwaccel_select="h264_decoder"
2294 h264_qsv_hwaccel_deps="libmfx"
2295 h264_vaapi_hwaccel_deps="vaapi"
2296 h264_vaapi_hwaccel_select="h264_decoder"
2297 h264_vda_decoder_deps="vda"
2298 h264_vda_decoder_select="h264_decoder"
2299 h264_vda_hwaccel_deps="vda"
2300 h264_vda_hwaccel_select="h264_decoder"
2301 h264_vda_old_hwaccel_deps="vda"
2302 h264_vda_old_hwaccel_select="h264_decoder"
2303 h264_vdpau_decoder_deps="vdpau"
2304 h264_vdpau_decoder_select="h264_decoder"
2305 h264_vdpau_hwaccel_deps="vdpau"
2306 h264_vdpau_hwaccel_select="h264_decoder"
2307 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2308 hevc_dxva2_hwaccel_select="hevc_decoder"
2309 mpeg_vdpau_decoder_deps="vdpau"
2310 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2311 mpeg_xvmc_hwaccel_deps="xvmc"
2312 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2313 mpeg1_vdpau_decoder_deps="vdpau"
2314 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2315 mpeg1_vdpau_hwaccel_deps="vdpau"
2316 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2317 mpeg1_xvmc_hwaccel_deps="xvmc"
2318 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2319 mpeg2_crystalhd_decoder_select="crystalhd"
2320 mpeg2_dxva2_hwaccel_deps="dxva2"
2321 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2322 mpeg2_vaapi_hwaccel_deps="vaapi"
2323 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2324 mpeg2_vdpau_hwaccel_deps="vdpau"
2325 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2326 mpeg2_xvmc_hwaccel_deps="xvmc"
2327 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2328 mpeg4_crystalhd_decoder_select="crystalhd"
2329 mpeg4_vaapi_hwaccel_deps="vaapi"
2330 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2331 mpeg4_vdpau_decoder_deps="vdpau"
2332 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2333 mpeg4_vdpau_hwaccel_deps="vdpau"
2334 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2335 msmpeg4_crystalhd_decoder_select="crystalhd"
2336 vc1_crystalhd_decoder_select="crystalhd"
2337 vc1_dxva2_hwaccel_deps="dxva2"
2338 vc1_dxva2_hwaccel_select="vc1_decoder"
2339 vc1_vaapi_hwaccel_deps="vaapi"
2340 vc1_vaapi_hwaccel_select="vc1_decoder"
2341 vc1_vdpau_decoder_deps="vdpau"
2342 vc1_vdpau_decoder_select="vc1_decoder"
2343 vc1_vdpau_hwaccel_deps="vdpau"
2344 vc1_vdpau_hwaccel_select="vc1_decoder"
2345 wmv3_crystalhd_decoder_select="crystalhd"
2346 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2347 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2348 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2349 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2350
2351 # parsers
2352 h264_parser_select="h264_decoder"
2353 hevc_parser_select="hevc_decoder"
2354 mpegvideo_parser_select="mpegvideo"
2355 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2356 vc1_parser_select="mpegvideo startcode vc1_decoder"
2357
2358 # external libraries
2359 libaacplus_encoder_deps="libaacplus"
2360 libcelt_decoder_deps="libcelt"
2361 libfaac_encoder_deps="libfaac"
2362 libfaac_encoder_select="audio_frame_queue"
2363 libfdk_aac_decoder_deps="libfdk_aac"
2364 libfdk_aac_encoder_deps="libfdk_aac"
2365 libfdk_aac_encoder_select="audio_frame_queue"
2366 libgme_demuxer_deps="libgme"
2367 libgsm_decoder_deps="libgsm"
2368 libgsm_encoder_deps="libgsm"
2369 libgsm_ms_decoder_deps="libgsm"
2370 libgsm_ms_encoder_deps="libgsm"
2371 libilbc_decoder_deps="libilbc"
2372 libilbc_encoder_deps="libilbc"
2373 libmodplug_demuxer_deps="libmodplug"
2374 libmp3lame_encoder_deps="libmp3lame"
2375 libmp3lame_encoder_select="audio_frame_queue"
2376 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2377 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2378 libopencore_amrnb_encoder_select="audio_frame_queue"
2379 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2380 libopenh264_encoder_deps="libopenh264"
2381 libopenjpeg_decoder_deps="libopenjpeg"
2382 libopenjpeg_encoder_deps="libopenjpeg"
2383 libopus_decoder_deps="libopus"
2384 libopus_encoder_deps="libopus"
2385 libopus_encoder_select="audio_frame_queue"
2386 libquvi_demuxer_deps="libquvi"
2387 libschroedinger_decoder_deps="libschroedinger"
2388 libschroedinger_encoder_deps="libschroedinger"
2389 libshine_encoder_deps="libshine"
2390 libshine_encoder_select="audio_frame_queue"
2391 libspeex_decoder_deps="libspeex"
2392 libspeex_encoder_deps="libspeex"
2393 libspeex_encoder_select="audio_frame_queue"
2394 libstagefright_h264_decoder_deps="libstagefright_h264"
2395 libtheora_encoder_deps="libtheora"
2396 libtwolame_encoder_deps="libtwolame"
2397 libvo_aacenc_encoder_deps="libvo_aacenc"
2398 libvo_aacenc_encoder_select="audio_frame_queue"
2399 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2400 libvorbis_decoder_deps="libvorbis"
2401 libvorbis_encoder_deps="libvorbis"
2402 libvorbis_encoder_select="audio_frame_queue"
2403 libvpx_vp8_decoder_deps="libvpx"
2404 libvpx_vp8_encoder_deps="libvpx"
2405 libvpx_vp9_decoder_deps="libvpx"
2406 libvpx_vp9_encoder_deps="libvpx"
2407 libwavpack_encoder_deps="libwavpack"
2408 libwebp_encoder_deps="libwebp"
2409 libx264_encoder_deps="libx264"
2410 libx264rgb_encoder_deps="libx264"
2411 libx264rgb_encoder_select="libx264_encoder"
2412 libx265_encoder_deps="libx265"
2413 libxavs_encoder_deps="libxavs"
2414 libxvid_encoder_deps="libxvid"
2415 libutvideo_decoder_deps="libutvideo"
2416 libutvideo_encoder_deps="libutvideo"
2417 libzvbi_teletext_decoder_deps="libzvbi"
2418 nvenc_encoder_deps="nvenc"
2419
2420 # demuxers / muxers
2421 ac3_demuxer_select="ac3_parser"
2422 asf_demuxer_select="riffdec"
2423 asf_muxer_select="riffenc"
2424 asf_stream_muxer_select="asf_muxer"
2425 avi_demuxer_select="riffdec exif"
2426 avi_muxer_select="riffenc"
2427 avisynth_demuxer_deps="avisynth"
2428 avisynth_demuxer_select="riffdec"
2429 caf_demuxer_select="riffdec"
2430 dash_muxer_select="mp4_muxer"
2431 dirac_demuxer_select="dirac_parser"
2432 dts_demuxer_select="dca_parser"
2433 dtshd_demuxer_select="dca_parser"
2434 dv_demuxer_select="dvprofile"
2435 dv_muxer_select="dvprofile"
2436 dxa_demuxer_select="riffdec"
2437 eac3_demuxer_select="ac3_parser"
2438 f4v_muxer_select="mov_muxer"
2439 flac_demuxer_select="flac_parser"
2440 hds_muxer_select="flv_muxer"
2441 hls_muxer_select="mpegts_muxer"
2442 image2_alias_pix_demuxer_select="image2_demuxer"
2443 image2_brender_pix_demuxer_select="image2_demuxer"
2444 ipod_muxer_select="mov_muxer"
2445 ismv_muxer_select="mov_muxer"
2446 libnut_demuxer_deps="libnut"
2447 libnut_muxer_deps="libnut"
2448 matroska_audio_muxer_select="matroska_muxer"
2449 matroska_demuxer_select="riffdec"
2450 matroska_demuxer_suggest="bzlib lzo zlib"
2451 matroska_muxer_select="riffenc"
2452 mmf_muxer_select="riffenc"
2453 mov_demuxer_select="riffdec"
2454 mov_demuxer_suggest="zlib"
2455 mov_muxer_select="riffenc rtpenc_chain"
2456 mp3_demuxer_select="mpegaudio_parser"
2457 mp4_muxer_select="mov_muxer"
2458 mpegts_muxer_select="adts_muxer latm_muxer"
2459 mpegtsraw_demuxer_select="mpegts_demuxer"
2460 mxf_d10_muxer_select="mxf_muxer"
2461 mxf_opatom_muxer_select="mxf_muxer"
2462 nut_muxer_select="riffenc"
2463 nuv_demuxer_select="riffdec"
2464 oga_muxer_select="ogg_muxer"
2465 ogg_demuxer_select="golomb"
2466 opus_muxer_select="ogg_muxer"
2467 psp_muxer_select="mov_muxer"
2468 rtp_demuxer_select="sdp_demuxer"
2469 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2470 rtsp_demuxer_select="http_protocol rtpdec"
2471 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2472 sap_demuxer_select="sdp_demuxer"
2473 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2474 sdp_demuxer_select="rtpdec"
2475 smoothstreaming_muxer_select="ismv_muxer"
2476 spdif_muxer_select="aac_parser"
2477 spx_muxer_select="ogg_muxer"
2478 tak_demuxer_select="tak_parser"
2479 tg2_muxer_select="mov_muxer"
2480 tgp_muxer_select="mov_muxer"
2481 vobsub_demuxer_select="mpegps_demuxer"
2482 w64_demuxer_select="wav_demuxer"
2483 w64_muxer_select="wav_muxer"
2484 wav_demuxer_select="riffdec"
2485 wav_muxer_select="riffenc"
2486 webm_muxer_select="riffenc"
2487 wtv_demuxer_select="riffdec"
2488 wtv_muxer_select="riffenc"
2489 xmv_demuxer_select="riffdec"
2490 xwma_demuxer_select="riffdec"
2491
2492 # indevs / outdevs
2493 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2494 alsa_outdev_deps="alsa_asoundlib_h"
2495 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2496 avfoundation_indev_select="avfoundation"
2497 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2498 caca_outdev_deps="libcaca"
2499 decklink_outdev_deps="decklink pthreads"
2500 decklink_outdev_extralibs="-lstdc++"
2501 decklink_indev_deps="decklink pthreads"
2502 decklink_indev_extralibs="-lstdc++"
2503 dshow_indev_deps="IBaseFilter"
2504 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32"
2505 dv1394_indev_deps="dv1394"
2506 dv1394_indev_select="dv_demuxer"
2507 fbdev_indev_deps="linux_fb_h"
2508 fbdev_outdev_deps="linux_fb_h"
2509 gdigrab_indev_deps="CreateDIBSection"
2510 gdigrab_indev_extralibs="-lgdi32"
2511 gdigrab_indev_select="bmp_decoder"
2512 iec61883_indev_deps="libiec61883"
2513 jack_indev_deps="jack_jack_h sem_timedwait"
2514 lavfi_indev_deps="avfilter"
2515 libcdio_indev_deps="libcdio"
2516 libdc1394_indev_deps="libdc1394"
2517 libv4l2_indev_deps="libv4l2"
2518 openal_indev_deps="openal"
2519 opengl_outdev_deps="opengl"
2520 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2521 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2522 pulse_indev_deps="libpulse"
2523 pulse_outdev_deps="libpulse"
2524 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2525 qtkit_indev_select="qtkit"
2526 sdl_outdev_deps="sdl"
2527 sndio_indev_deps="sndio_h"
2528 sndio_outdev_deps="sndio_h"
2529 v4l_indev_deps="linux_videodev_h"
2530 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2531 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2532 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2533 vfwcap_indev_extralibs="-lavicap32"
2534 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2535 xv_outdev_extralibs="-lXv -lX11 -lXext"
2536 x11grab_indev_deps="x11grab"
2537 x11grab_xcb_indev_deps="libxcb"
2538
2539 # protocols
2540 bluray_protocol_deps="libbluray"
2541 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2542 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2543 ffrtmpcrypt_protocol_select="tcp_protocol"
2544 ffrtmphttp_protocol_deps="!librtmp_protocol"
2545 ffrtmphttp_protocol_select="http_protocol"
2546 ftp_protocol_select="tcp_protocol"
2547 gopher_protocol_select="network"
2548 http_protocol_select="tcp_protocol"
2549 httpproxy_protocol_select="tcp_protocol"
2550 https_protocol_select="tls_protocol"
2551 icecast_protocol_select="http_protocol"
2552 librtmp_protocol_deps="librtmp"
2553 librtmpe_protocol_deps="librtmp"
2554 librtmps_protocol_deps="librtmp"
2555 librtmpt_protocol_deps="librtmp"
2556 librtmpte_protocol_deps="librtmp"
2557 libsmbclient_protocol_deps="libsmbclient gplv3"
2558 libssh_protocol_deps="libssh"
2559 mmsh_protocol_select="http_protocol"
2560 mmst_protocol_select="network"
2561 rtmp_protocol_deps="!librtmp_protocol"
2562 rtmp_protocol_select="tcp_protocol"
2563 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2564 rtmps_protocol_deps="!librtmp_protocol"
2565 rtmps_protocol_select="tls_protocol"
2566 rtmpt_protocol_select="ffrtmphttp_protocol"
2567 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2568 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2569 rtp_protocol_select="udp_protocol"
2570 sctp_protocol_deps="struct_sctp_event_subscribe"
2571 sctp_protocol_select="network"
2572 srtp_protocol_select="rtp_protocol"
2573 tcp_protocol_select="network"
2574 tls_protocol_deps_any="openssl gnutls"
2575 tls_protocol_select="tcp_protocol"
2576 udp_protocol_select="network"
2577 udplite_protocol_select="network"
2578 unix_protocol_deps="sys_un_h"
2579 unix_protocol_select="network"
2580
2581 # filters
2582 amovie_filter_deps="avcodec avformat"
2583 aresample_filter_deps="swresample"
2584 ass_filter_deps="libass"
2585 asyncts_filter_deps="avresample"
2586 atempo_filter_deps="avcodec"
2587 atempo_filter_select="rdft"
2588 azmq_filter_deps="libzmq"
2589 blackframe_filter_deps="gpl"
2590 boxblur_filter_deps="gpl"
2591 bs2b_filter_deps="libbs2b"
2592 colormatrix_filter_deps="gpl"
2593 cropdetect_filter_deps="gpl"
2594 delogo_filter_deps="gpl"
2595 deshake_filter_select="pixelutils"
2596 drawtext_filter_deps="libfreetype"
2597 ebur128_filter_deps="gpl"
2598 eq_filter_deps="gpl"
2599 flite_filter_deps="libflite"
2600 frei0r_filter_deps="frei0r dlopen"
2601 frei0r_src_filter_deps="frei0r dlopen"
2602 fspp_filter_deps="gpl"
2603 geq_filter_deps="gpl"
2604 histeq_filter_deps="gpl"
2605 hqdn3d_filter_deps="gpl"
2606 interlace_filter_deps="gpl"
2607 kerndeint_filter_deps="gpl"
2608 ladspa_filter_deps="ladspa dlopen"
2609 mcdeint_filter_deps="avcodec gpl"
2610 movie_filter_deps="avcodec avformat"
2611 mpdecimate_filter_deps="gpl"
2612 mpdecimate_filter_select="pixelutils"
2613 mptestsrc_filter_deps="gpl"
2614 negate_filter_deps="lut_filter"
2615 perspective_filter_deps="gpl"
2616 pp7_filter_deps="gpl"
2617 ocv_filter_deps="libopencv"
2618 owdenoise_filter_deps="gpl"
2619 pan_filter_deps="swresample"
2620 phase_filter_deps="gpl"
2621 pp_filter_deps="gpl postproc"
2622 pullup_filter_deps="gpl"
2623 removelogo_filter_deps="avcodec avformat swscale"
2624 repeatfields_filter_deps="gpl"
2625 resample_filter_deps="avresample"
2626 sab_filter_deps="gpl swscale"
2627 scale_filter_deps="swscale"
2628 select_filter_select="pixelutils"
2629 smartblur_filter_deps="gpl swscale"
2630 showspectrum_filter_deps="avcodec"
2631 showspectrum_filter_select="rdft"
2632 spp_filter_deps="gpl avcodec"
2633 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2634 stereo3d_filter_deps="gpl"
2635 subtitles_filter_deps="avformat avcodec libass"
2636 super2xsai_filter_deps="gpl"
2637 tinterlace_filter_deps="gpl"
2638 vidstabdetect_filter_deps="libvidstab"
2639 vidstabtransform_filter_deps="libvidstab"
2640 pixfmts_super2xsai_test_deps="super2xsai_filter"
2641 tinterlace_merge_test_deps="tinterlace_filter"
2642 tinterlace_pad_test_deps="tinterlace_filter"
2643 uspp_filter_deps="gpl avcodec"
2644 zmq_filter_deps="libzmq"
2645 zoompan_filter_deps="swscale"
2646
2647 # examples
2648 avio_reading="avformat avcodec avutil"
2649 avcodec_example_deps="avcodec avutil"
2650 decoding_encoding_example_deps="avcodec avformat avutil"
2651 demuxing_decoding_example_deps="avcodec avformat avutil"
2652 extract_mvs_example_deps="avcodec avformat avutil"
2653 filter_audio_example_deps="avfilter avutil"
2654 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2655 filtering_video_example_deps="avfilter avcodec avformat avutil"
2656 metadata_example_deps="avformat avutil"
2657 muxing_example_deps="avcodec avformat avutil swscale"
2658 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2659 remuxing_example_deps="avcodec avformat avutil"
2660 resampling_audio_example_deps="avutil swresample"
2661 scaling_video_example_deps="avutil swscale"
2662 transcode_aac_example_deps="avcodec avformat swresample"
2663 transcoding_example_deps="avfilter avcodec avformat avutil"
2664
2665 # libraries, in linking order
2666 avcodec_deps="avutil"
2667 avdevice_deps="avformat avcodec avutil"
2668 avfilter_deps="avutil"
2669 avformat_deps="avcodec avutil"
2670 avresample_deps="avutil"
2671 postproc_deps="avutil gpl"
2672 swresample_deps="avutil"
2673 swscale_deps="avutil"
2674
2675 # programs
2676 ffmpeg_deps="avcodec avfilter avformat swresample"
2677 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2678                null_filter
2679                setpts_filter trim_filter"
2680 ffplay_deps="avcodec avformat swscale swresample sdl"
2681 ffplay_libs='$sdl_libs'
2682 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2683 ffprobe_deps="avcodec avformat"
2684 ffserver_deps="avformat fork sarestart"
2685 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2686
2687 # documentation
2688 podpages_deps="perl"
2689 manpages_deps="perl pod2man"
2690 htmlpages_deps="perl"
2691 htmlpages_deps_any="makeinfo_html texi2html"
2692 txtpages_deps="perl makeinfo"
2693 doc_deps_any="manpages htmlpages podpages txtpages"
2694
2695 # default parameters
2696
2697 logfile="config.log"
2698
2699 # installation paths
2700 prefix_default="/usr/local"
2701 bindir_default='${prefix}/bin'
2702 datadir_default='${prefix}/share/ffmpeg'
2703 docdir_default='${prefix}/share/doc/ffmpeg'
2704 incdir_default='${prefix}/include'
2705 libdir_default='${prefix}/lib'
2706 mandir_default='${prefix}/share/man'
2707
2708 # toolchain
2709 ar_default="ar"
2710 cc_default="gcc"
2711 cxx_default="g++"
2712 host_cc_default="gcc"
2713 cp_f="cp -f"
2714 doxygen_default="doxygen"
2715 install="install"
2716 ln_s="ln -s -f"
2717 nm_default="nm -g"
2718 objformat="elf"
2719 pkg_config_default=pkg-config
2720 if ranlib 2>&1 | grep -q "\-D "; then
2721     ranlib_default="ranlib -D"
2722 else
2723     ranlib_default="ranlib"
2724 fi
2725 strip_default="strip"
2726 yasmexe_default="yasm"
2727 windres_default="windres"
2728
2729 # OS
2730 target_os_default=$(tolower $(uname -s))
2731 host_os=$target_os_default
2732
2733 # machine
2734 if test "$target_os_default" = aix; then
2735     arch_default=$(uname -p)
2736     strip_default="strip -X32_64"
2737 else
2738     arch_default=$(uname -m)
2739 fi
2740 cpu="generic"
2741 intrinsics="none"
2742
2743 # configurable options
2744 enable $PROGRAM_LIST
2745 enable $DOCUMENT_LIST
2746 enable $EXAMPLE_LIST
2747 enable $(filter_out avresample $LIBRARY_LIST)
2748 enable stripping
2749
2750 enable asm
2751 enable debug
2752 enable doc
2753 enable faan faandct faanidct
2754 enable optimizations
2755 enable runtime_cpudetect
2756 enable safe_bitstream_reader
2757 enable static
2758 enable swscale_alpha
2759
2760 sws_max_filter_size_default=256
2761 set_default sws_max_filter_size
2762
2763 # Enable hwaccels by default.
2764 enable dxva2 vaapi vda vdpau xvmc
2765 enable xlib
2766
2767 # build settings
2768 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2769 LIBPREF="lib"
2770 LIBSUF=".a"
2771 FULLNAME='$(NAME)$(BUILDSUF)'
2772 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2773 SLIBPREF="lib"
2774 SLIBSUF=".so"
2775 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2776 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2777 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2778 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2779 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2780 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2781
2782 asflags_filter=echo
2783 cflags_filter=echo
2784 ldflags_filter=echo
2785
2786 AS_C='-c'
2787 AS_O='-o $@'
2788 CC_C='-c'
2789 CC_E='-E -o $@'
2790 CC_O='-o $@'
2791 CXX_C='-c'
2792 CXX_O='-o $@'
2793 LD_O='-o $@'
2794 LD_LIB='-l%'
2795 LD_PATH='-L'
2796 HOSTCC_C='-c'
2797 HOSTCC_E='-E -o $@'
2798 HOSTCC_O='-o $@'
2799 HOSTLD_O='-o $@'
2800
2801 host_libs='-lm'
2802 host_cflags_filter=echo
2803 host_ldflags_filter=echo
2804
2805 target_path='$(CURDIR)'
2806
2807 # since the object filename is not given with the -MM flag, the compiler
2808 # is only able to print the basename, and we must add the path ourselves
2809 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2810 DEPFLAGS='-MM'
2811
2812 # find source path
2813 if test -f configure; then
2814     source_path=.
2815 else
2816     source_path=$(cd $(dirname "$0"); pwd)
2817     echo "$source_path" | grep -q '[[:blank:]]' &&
2818         die "Out of tree builds are impossible with whitespace in source path."
2819     test -e "$source_path/config.h" &&
2820         die "Out of tree builds are impossible with config.h in source dir."
2821 fi
2822
2823 for v in "$@"; do
2824     r=${v#*=}
2825     l=${v%"$r"}
2826     r=$(sh_quote "$r")
2827     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2828 done
2829
2830 find_things(){
2831     thing=$1
2832     pattern=$2
2833     file=$source_path/$3
2834     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2835 }
2836
2837 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2838 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2839 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2840 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2841 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2842 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2843 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2844 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2845 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2846 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2847 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2848
2849 ALL_COMPONENTS="
2850     $BSF_LIST
2851     $DECODER_LIST
2852     $DEMUXER_LIST
2853     $ENCODER_LIST
2854     $FILTER_LIST
2855     $HWACCEL_LIST
2856     $INDEV_LIST
2857     $MUXER_LIST
2858     $OUTDEV_LIST
2859     $PARSER_LIST
2860     $PROTOCOL_LIST
2861 "
2862
2863 for n in $COMPONENT_LIST; do
2864     v=$(toupper ${n%s})_LIST
2865     eval enable \$$v
2866     eval ${n}_if_any="\$$v"
2867 done
2868
2869 enable $ARCH_EXT_LIST
2870
2871 die_unknown(){
2872     echo "Unknown option \"$1\"."
2873     echo "See $0 --help for available options."
2874     exit 1
2875 }
2876
2877 print_3_columns() {
2878     cat | tr ' ' '\n' | sort | pr -r -3 -t
2879 }
2880
2881 show_list() {
2882     suffix=_$1
2883     shift
2884     echo $* | sed s/$suffix//g | print_3_columns
2885     exit 0
2886 }
2887
2888 rand_list(){
2889     IFS=', '
2890     set -- $*
2891     unset IFS
2892     for thing; do
2893         comp=${thing%:*}
2894         prob=${thing#$comp}
2895         prob=${prob#:}
2896         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2897         echo "prob ${prob:-0.5}"
2898         printf '%s\n' $comp
2899     done
2900 }
2901
2902 do_random(){
2903     action=$1
2904     shift
2905     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2906     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2907 }
2908
2909 for opt do
2910     optval="${opt#*=}"
2911     case "$opt" in
2912         --extra-ldflags=*)
2913             add_ldflags $optval
2914         ;;
2915         --extra-ldexeflags=*)
2916             add_ldexeflags $optval
2917         ;;
2918         --extra-libs=*)
2919             add_extralibs $optval
2920         ;;
2921         --disable-devices)
2922             disable $INDEV_LIST $OUTDEV_LIST
2923         ;;
2924         --enable-debug=*)
2925             debuglevel="$optval"
2926         ;;
2927         --disable-programs)
2928             disable $PROGRAM_LIST
2929         ;;
2930         --disable-everything)
2931             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2932         ;;
2933         --disable-all)
2934             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2935             disable $LIBRARY_LIST $PROGRAM_LIST doc
2936         ;;
2937         --enable-random|--disable-random)
2938             action=${opt%%-random}
2939             do_random ${action#--} $COMPONENT_LIST
2940         ;;
2941         --enable-random=*|--disable-random=*)
2942             action=${opt%%-random=*}
2943             do_random ${action#--} $optval
2944         ;;
2945         --enable-*=*|--disable-*=*)
2946             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2947             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2948             eval list=\$$(toupper $thing)_LIST
2949             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2950             list=$(filter "$name" $list)
2951             [ "$list" = "" ] && warn "Option $opt did not match anything"
2952             $action $list
2953         ;;
2954         --enable-?*|--disable-?*)
2955             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2956             if is_in $option $COMPONENT_LIST; then
2957                 test $action = disable && action=unset
2958                 eval $action \$$(toupper ${option%s})_LIST
2959             elif is_in $option $CMDLINE_SELECT; then
2960                 $action $option
2961             else
2962                 die_unknown $opt
2963             fi
2964         ;;
2965         --list-*)
2966             NAME="${opt#--list-}"
2967             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2968             NAME=${NAME%s}
2969             eval show_list $NAME \$$(toupper $NAME)_LIST
2970         ;;
2971         --help|-h) show_help
2972         ;;
2973         --fatal-warnings) enable fatal_warnings
2974         ;;
2975         *)
2976             optname="${opt%%=*}"
2977             optname="${optname#--}"
2978             optname=$(echo "$optname" | sed 's/-/_/g')
2979             if is_in $optname $CMDLINE_SET; then
2980                 eval $optname='$optval'
2981             elif is_in $optname $CMDLINE_APPEND; then
2982                 append $optname "$optval"
2983             else
2984                 die_unknown $opt
2985             fi
2986         ;;
2987     esac
2988 done
2989
2990 disabled logging && logfile=/dev/null
2991
2992 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2993 set >> $logfile
2994
2995 test -n "$cross_prefix" && enable cross_compile
2996
2997 if enabled cross_compile; then
2998     test -n "$arch" && test -n "$target_os" ||
2999         die "Must specify target arch and OS when cross-compiling"
3000 fi
3001
3002 test -n "$valgrind" && toolchain="valgrind-memcheck"
3003
3004 case "$toolchain" in
3005     clang-asan)
3006         cc_default="clang"
3007         add_cflags  -fsanitize=address
3008         add_ldflags -fsanitize=address
3009     ;;
3010     clang-tsan)
3011         cc_default="clang"
3012         add_cflags  -fsanitize=thread -pie
3013         add_ldflags -fsanitize=thread -pie
3014     ;;
3015     clang-usan)
3016         cc_default="clang"
3017         add_cflags  -fsanitize=undefined
3018         add_ldflags -fsanitize=undefined
3019     ;;
3020     gcc-asan)
3021         cc_default="gcc"
3022         add_cflags  -fsanitize=address
3023         add_ldflags -fsanitize=address
3024     ;;
3025     gcc-tsan)
3026         cc_default="gcc"
3027         add_cflags  -fsanitize=thread -pie -fPIC
3028         add_ldflags -fsanitize=thread -pie -fPIC
3029     ;;
3030     gcc-usan)
3031         cc_default="gcc"
3032         add_cflags  -fsanitize=undefined
3033         add_ldflags -fsanitize=undefined
3034     ;;
3035     valgrind-massif)
3036         target_exec_default=${valgrind:-"valgrind"}
3037         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3038     ;;
3039     valgrind-memcheck)
3040         target_exec_default=${valgrind:-"valgrind"}
3041         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3042     ;;
3043     msvc)
3044         # Check whether the current MSVC version needs the C99 converter.
3045         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3046         # support enough of C99 to build ffmpeg. Default to the new
3047         # behaviour if the regexp was unable to match anything, since this
3048         # successfully parses the version number of existing supported
3049         # versions that require the converter (MSVC 2010 and 2012).
3050         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3051         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3052             cc_default="cl"
3053         else
3054             cc_default="c99wrap cl"
3055         fi
3056         ld_default="link"
3057         nm_default="dumpbin -symbols"
3058         ar_default="lib"
3059         target_os_default="win32"
3060         # Use a relative path for TMPDIR. This makes sure all the
3061         # ffconf temp files are written with a relative path, avoiding
3062         # issues with msys/win32 path conversion for MSVC parameters
3063         # such as -Fo<file> or -out:<file>.
3064         TMPDIR=.
3065     ;;
3066     icl)
3067         cc_default="icl"
3068         ld_default="xilink"
3069         nm_default="dumpbin -symbols"
3070         ar_default="xilib"
3071         target_os_default="win32"
3072         TMPDIR=.
3073     ;;
3074     gcov)
3075         add_cflags  -fprofile-arcs -ftest-coverage
3076         add_ldflags -fprofile-arcs -ftest-coverage
3077     ;;
3078     hardened)
3079         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3080         add_cflags   -fno-strict-overflow -fstack-protector-all
3081         add_ldflags  -Wl,-z,relro -Wl,-z,now
3082     ;;
3083     ?*)
3084         die "Unknown toolchain $toolchain"
3085     ;;
3086 esac
3087
3088 ar_default="${cross_prefix}${ar_default}"
3089 cc_default="${cross_prefix}${cc_default}"
3090 cxx_default="${cross_prefix}${cxx_default}"
3091 nm_default="${cross_prefix}${nm_default}"
3092 pkg_config_default="${cross_prefix}${pkg_config_default}"
3093 ranlib_default="${cross_prefix}${ranlib_default}"
3094 strip_default="${cross_prefix}${strip_default}"
3095 windres_default="${cross_prefix}${windres_default}"
3096
3097 sysinclude_default="${sysroot}/usr/include"
3098
3099 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3100     target_exec target_os yasmexe
3101 enabled cross_compile || host_cc_default=$cc
3102 set_default host_cc
3103
3104 pkg_config_fail_message=""
3105 if ! $pkg_config --version >/dev/null 2>&1; then
3106     warn "$pkg_config not found, library detection may fail."
3107     pkg_config=false
3108 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3109     pkg_config_fail_message="
3110 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3111 fi
3112
3113 if test $doxygen != $doxygen_default && \
3114   ! $doxygen --version >/dev/null 2>&1; then
3115     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3116 fi
3117
3118 exesuf() {
3119     case $1 in
3120         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3121     esac
3122 }
3123
3124 EXESUF=$(exesuf $target_os)
3125 HOSTEXESUF=$(exesuf $host_os)
3126
3127 # set temporary file name
3128 : ${TMPDIR:=$TEMPDIR}
3129 : ${TMPDIR:=$TMP}
3130 : ${TMPDIR:=/tmp}
3131
3132 if [ -n "$tempprefix" ] ; then
3133     mktemp(){
3134         echo $tempprefix.${HOSTNAME}.${UID}
3135     }
3136 elif ! check_cmd mktemp -u XXXXXX; then
3137     # simple replacement for missing mktemp
3138     # NOT SAFE FOR GENERAL USE
3139     mktemp(){
3140         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3141     }
3142 fi
3143
3144 tmpfile(){
3145     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3146         (set -C; exec > $tmp) 2>/dev/null ||
3147         die "Unable to create temporary file in $TMPDIR."
3148     append TMPFILES $tmp
3149     eval $1=$tmp
3150 }
3151
3152 trap 'rm -f -- $TMPFILES' EXIT
3153
3154 tmpfile TMPASM .asm
3155 tmpfile TMPC   .c
3156 tmpfile TMPCPP .cpp
3157 tmpfile TMPE   $EXESUF
3158 tmpfile TMPH   .h
3159 tmpfile TMPM   .m
3160 tmpfile TMPO   .o
3161 tmpfile TMPS   .S
3162 tmpfile TMPSH  .sh
3163 tmpfile TMPV   .ver
3164
3165 unset -f mktemp
3166
3167 chmod +x $TMPE
3168
3169 # make sure we can execute files in $TMPDIR
3170 cat > $TMPSH 2>> $logfile <<EOF
3171 #! /bin/sh
3172 EOF
3173 chmod +x $TMPSH >> $logfile 2>&1
3174 if ! $TMPSH >> $logfile 2>&1; then
3175     cat <<EOF
3176 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3177 variable to another directory and make sure that it is not mounted noexec.
3178 EOF
3179     die "Sanity test failed."
3180 fi
3181
3182 armasm_flags(){
3183     for flag; do
3184         case $flag in
3185             # Filter out MSVC cl.exe options from cflags that shouldn't
3186             # be passed to gas-preprocessor
3187             -M[TD]*)                                            ;;
3188             *)                  echo $flag                      ;;
3189         esac
3190    done
3191 }
3192
3193 ccc_flags(){
3194     for flag; do
3195         case $flag in
3196             -std=c99)           echo -c99                       ;;
3197             -mcpu=*)            echo -arch ${flag#*=}           ;;
3198             -mieee)             echo -ieee                      ;;
3199             -O*|-fast)          echo $flag                      ;;
3200             -fno-math-errno)    echo -assume nomath_errno       ;;
3201             -g)                 echo -g3                        ;;
3202             -Wall)              echo -msg_enable level2         ;;
3203             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3204             -Wl,*)              echo $flag                      ;;
3205             -f*|-W*)                                            ;;
3206             *)                  echo $flag                      ;;
3207         esac
3208    done
3209 }
3210
3211 cparser_flags(){
3212     for flag; do
3213         case $flag in
3214             -Wno-switch)             echo -Wno-switch-enum ;;
3215             -Wno-format-zero-length) ;;
3216             -Wdisabled-optimization) ;;
3217             -Wno-pointer-sign)       echo -Wno-other ;;
3218             *)                       echo $flag ;;
3219         esac
3220     done
3221 }
3222
3223 msvc_common_flags(){
3224     for flag; do
3225         case $flag in
3226             # In addition to specifying certain flags under the compiler
3227             # specific filters, they must be specified here as well or else the
3228             # generic catch all at the bottom will print the original flag.
3229             -Wall)                ;;
3230             -std=c99)             ;;
3231             # Common flags
3232             -fomit-frame-pointer) ;;
3233             -g)                   echo -Z7 ;;
3234             -fno-math-errno)      ;;
3235             -fno-common)          ;;
3236             -fno-signed-zeros)    ;;
3237             -fPIC)                ;;
3238             -mthumb)              ;;
3239             -march=*)             ;;
3240             -lz)                  echo zlib.lib ;;
3241             -lavifil32)           echo vfw32.lib ;;
3242             -lavicap32)           echo vfw32.lib user32.lib ;;
3243             -l*)                  echo ${flag#-l}.lib ;;
3244             -L*)                  echo -libpath:${flag#-L} ;;
3245             *)                    echo $flag ;;
3246         esac
3247     done
3248 }
3249
3250 msvc_flags(){
3251     msvc_common_flags "$@"
3252     for flag; do
3253         case $flag in
3254             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3255                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3256                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3257                                        -wd4554 \
3258                                        -wd4273 -wd4701 ;;
3259         esac
3260     done
3261 }
3262
3263 icl_flags(){
3264     msvc_common_flags "$@"
3265     for flag; do
3266         case $flag in
3267             # Despite what Intel's documentation says -Wall, which is supported
3268             # on Windows, does enable remarks so disable them here.
3269             -Wall)                echo $flag -Qdiag-disable:remark ;;
3270             -std=c99)             echo -Qstd=c99 ;;
3271             -flto)                echo -ipo ;;
3272         esac
3273     done
3274 }
3275
3276 icc_flags(){
3277     for flag; do
3278         case $flag in
3279             -flto)                echo -ipo ;;
3280             *)                    echo $flag ;;
3281         esac
3282     done
3283 }
3284
3285 pgi_flags(){
3286     for flag; do
3287         case $flag in
3288             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3289             -fomit-frame-pointer) echo -Mnoframe ;;
3290             -g)                   echo -gopt ;;
3291             *)                    echo $flag ;;
3292         esac
3293     done
3294 }
3295
3296 suncc_flags(){
3297     for flag; do
3298         case $flag in
3299             -march=*|-mcpu=*)
3300                 case "${flag#*=}" in
3301                     native)                   echo -xtarget=native       ;;
3302                     v9|niagara)               echo -xarch=sparc          ;;
3303                     ultrasparc)               echo -xarch=sparcvis       ;;
3304                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3305                     i586|pentium)             echo -xchip=pentium        ;;
3306                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3307                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3308                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3309                     pentium4*)          echo -xtarget=pentium4           ;;
3310                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3311                     *-sse3)             echo -xarch=sse3                 ;;
3312                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3313                     bonnell)                   echo -xarch=ssse3         ;;
3314                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3315                     westmere)                  echo -xtarget=westmere    ;;
3316                     silvermont)                echo -xarch=sse4_2        ;;
3317                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3318                     core-avx*|ivybridge|haswell|broadwell)
3319                                                echo -xarch=avx           ;;
3320                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3321                     btver1)                    echo -xarch=amdsse4a      ;;
3322                     btver2|bdver*)             echo -xarch=avx           ;;
3323                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3324                     k8|opteron|athlon64|athlon-fx)
3325                                                echo -xarch=sse2a         ;;
3326                     athlon*)                   echo -xarch=pentium_proa  ;;
3327                 esac
3328                 ;;
3329             -std=c99)             echo -xc99              ;;
3330             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3331             -fPIC)                echo -KPIC -xcode=pic32 ;;
3332             -W*,*)                echo $flag              ;;
3333             -f*-*|-W*|-mimpure-text)                      ;;
3334             -shared)              echo -G                 ;;
3335             *)                    echo $flag              ;;
3336         esac
3337     done
3338 }
3339
3340 tms470_flags(){
3341     for flag; do
3342         case $flag in
3343             -march=*|-mcpu=*)
3344                 case "${flag#*=}" in
3345                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3346                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3347                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3348                     armv6*|arm11*)          echo -mv=6   ;;
3349                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3350                                             echo -mv=5e  ;;
3351                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3352                 esac
3353                 ;;
3354             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3355             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3356             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3357             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3358             -msoft-float)   echo --float_support=vfplib       ;;
3359             -O[0-3]|-mf=*)  echo $flag                        ;;
3360             -g)             echo -g -mn                       ;;
3361             -pds=*)         echo $flag                        ;;
3362             -D*|-I*)        echo $flag                        ;;
3363             --gcc|--abi=*)  echo $flag                        ;;
3364             -me)            echo $flag                        ;;
3365         esac
3366     done
3367 }
3368
3369 probe_cc(){
3370     pfx=$1
3371     _cc=$2
3372
3373     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3374     unset _ld_o _ldflags _ld_lib _ld_path
3375     unset _depflags _DEPCMD _DEPFLAGS
3376     _flags_filter=echo
3377
3378     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3379         true # no-op to avoid reading stdin in following checks
3380     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3381         _type=llvm_gcc
3382         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3383         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3384         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3385         _cflags_speed='-O3'
3386         _cflags_size='-Os'
3387     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3388         _type=gcc
3389         gcc_version=$($_cc --version | head -n1)
3390         gcc_basever=$($_cc -dumpversion)
3391         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3392         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3393         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3394         if ! $_cc -dumpversion | grep -q '^2\.'; then
3395             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3396         fi
3397         _cflags_speed='-O3'
3398         _cflags_size='-Os'
3399     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3400         _type=icc
3401         _ident=$($_cc --version | head -n1)
3402         _depflags='-MMD'
3403         _cflags_speed='-O3'
3404         _cflags_size='-Os'
3405         _cflags_noopt='-O1'
3406         _flags_filter=icc_flags
3407     elif $_cc -v 2>&1 | grep -q xlc; then
3408         _type=xlc
3409         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3410         _cflags_speed='-O5'
3411         _cflags_size='-O5 -qcompact'
3412     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3413         _type=ccc
3414         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3415         _DEPFLAGS='-M'
3416         _cflags_speed='-fast'
3417         _cflags_size='-O1'
3418         _flags_filter=ccc_flags
3419     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3420         test -d "$sysroot" || die "No valid sysroot specified."
3421         _type=armcc
3422         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3423         armcc_conf="$PWD/armcc.conf"
3424         $_cc --arm_linux_configure                 \
3425              --arm_linux_config_file="$armcc_conf" \
3426              --configure_sysroot="$sysroot"        \
3427              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3428              die "Error creating armcc configuration file."
3429         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3430         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3431         as_default="${cross_prefix}gcc"
3432         _depflags='-MMD'
3433         _cflags_speed='-O3'
3434         _cflags_size='-Os'
3435     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3436         _type=tms470
3437         _ident=$($_cc -version | head -n1 | tr -s ' ')
3438         _flags='--gcc --abi=eabi -me'
3439         _cc_e='-ppl -fe=$@'
3440         _cc_o='-fe=$@'
3441         _depflags='-ppa -ppd=$(@:.o=.d)'
3442         _cflags_speed='-O3 -mf=5'
3443         _cflags_size='-O3 -mf=2'
3444         _flags_filter=tms470_flags
3445     elif $_cc -v 2>&1 | grep -q clang; then
3446         _type=clang
3447         _ident=$($_cc --version | head -n1)
3448         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3449         _cflags_speed='-O3'
3450         _cflags_size='-Os'
3451     elif $_cc -V 2>&1 | grep -q Sun; then
3452         _type=suncc
3453         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3454         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3455         _DEPFLAGS='-xM1 -xc99'
3456         _ldflags='-std=c99'
3457         _cflags_speed='-O5'
3458         _cflags_size='-O5 -xspace'
3459         _flags_filter=suncc_flags
3460     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3461         _type=pathscale
3462         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3463         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3464         _cflags_speed='-O2'
3465         _cflags_size='-Os'
3466         _flags_filter='filter_out -Wdisabled-optimization'
3467     elif $_cc -v 2>&1 | grep -q Open64; then
3468         _type=open64
3469         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3470         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3471         _cflags_speed='-O2'
3472         _cflags_size='-Os'
3473         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3474     elif $_cc -V 2>&1 | grep -q Portland; then
3475         _type=pgi
3476         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3477         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3478         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3479         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3480         _cflags_noopt="-O"
3481         _flags_filter=pgi_flags
3482     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3483         _type=armasm
3484         _ident=$($_cc | head -n1)
3485         # 4509: "This form of conditional instruction is deprecated"
3486         _flags="-nologo -ignore 4509"
3487         _flags_filter=armasm_flags
3488     elif $_cc 2>&1 | grep -q Intel; then
3489         _type=icl
3490         _ident=$($cc 2>&1 | head -n1)
3491         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3492         # Not only is O3 broken on 13.x+ but it is slower on all previous
3493         # versions (tested) as well.
3494         _cflags_speed="-O2"
3495         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3496         if $_cc 2>&1 | grep -q Linker; then
3497             _ld_o='-out:$@'
3498         else
3499             _ld_o='-Fe$@'
3500         fi
3501         _cc_o='-Fo$@'
3502         _cc_e='-P'
3503         _flags_filter=icl_flags
3504         _ld_lib='lib%.a'
3505         _ld_path='-libpath:'
3506         # -Qdiag-error to make icl error when seeing certain unknown arguments
3507         _flags='-nologo -Qdiag-error:4044,10157'
3508         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3509         # with MSVC which enables it by default.
3510         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3511         if [ $pfx = hostcc ]; then
3512             append _cflags -Dsnprintf=_snprintf
3513         fi
3514         disable stripping
3515     elif $_cc 2>&1 | grep -q Microsoft; then
3516         _type=msvc
3517         _ident=$($cc 2>&1 | head -n1)
3518         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3519         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3520         _cflags_speed="-O2"
3521         _cflags_size="-O1"
3522         if $_cc 2>&1 | grep -q Linker; then
3523             _ld_o='-out:$@'
3524         else
3525             _ld_o='-Fe$@'
3526         fi
3527         _cc_o='-Fo$@'
3528         _cc_e='-P -Fi$@'
3529         _flags_filter=msvc_flags
3530         _ld_lib='lib%.a'
3531         _ld_path='-libpath:'
3532         _flags='-nologo'
3533         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3534         if [ $pfx = hostcc ]; then
3535             if [ -z "$cl_major_ver" ] || [ $cl_major_ver -le 18 ]; then
3536                 append _cflags -Dsnprintf=_snprintf
3537             fi
3538         fi
3539         disable stripping
3540     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3541         _type=cparser
3542         _ident=$($_cc --version | head -n1)
3543         _depflags='-MMD'
3544         _cflags_speed='-O4'
3545         _cflags_size='-O2'
3546         _flags_filter=cparser_flags
3547     fi
3548
3549     eval ${pfx}_type=\$_type
3550     eval ${pfx}_ident=\$_ident
3551 }
3552
3553 set_ccvars(){
3554     eval ${1}_C=\${_cc_c-\${${1}_C}}
3555     eval ${1}_E=\${_cc_e-\${${1}_E}}
3556     eval ${1}_O=\${_cc_o-\${${1}_O}}
3557
3558     if [ -n "$_depflags" ]; then
3559         eval ${1}_DEPFLAGS=\$_depflags
3560     else
3561         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3562         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3563         eval DEP${1}FLAGS=\$_flags
3564     fi
3565 }
3566
3567 probe_cc cc "$cc"
3568 cflags_filter=$_flags_filter
3569 cflags_speed=$_cflags_speed
3570 cflags_size=$_cflags_size
3571 cflags_noopt=$_cflags_noopt
3572 add_cflags $_flags $_cflags
3573 cc_ldflags=$_ldflags
3574 set_ccvars CC
3575
3576 probe_cc hostcc "$host_cc"
3577 host_cflags_filter=$_flags_filter
3578 add_host_cflags  $_flags $_cflags
3579 set_ccvars HOSTCC
3580
3581 test -n "$cc_type" && enable $cc_type ||
3582     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3583
3584 : ${as_default:=$cc}
3585 : ${dep_cc_default:=$cc}
3586 : ${ld_default:=$cc}
3587 : ${host_ld_default:=$host_cc}
3588 set_default ar as dep_cc ld host_ld windres
3589
3590 probe_cc as "$as"
3591 asflags_filter=$_flags_filter
3592 add_asflags $_flags $_cflags
3593 set_ccvars AS
3594
3595 probe_cc ld "$ld"
3596 ldflags_filter=$_flags_filter
3597 add_ldflags $_flags $_ldflags
3598 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3599 LD_O=${_ld_o-$LD_O}
3600 LD_LIB=${_ld_lib-$LD_LIB}
3601 LD_PATH=${_ld_path-$LD_PATH}
3602
3603 probe_cc hostld "$host_ld"
3604 host_ldflags_filter=$_flags_filter
3605 add_host_ldflags $_flags $_ldflags
3606 HOSTLD_O=${_ld_o-$HOSTLD_O}
3607
3608 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3609     probe_cc depcc "$dep_cc"
3610     CCDEP=${_DEPCMD:-$DEPCMD}
3611     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3612     DEPCCFLAGS=$_flags
3613 fi
3614
3615 if $ar 2>&1 | grep -q Microsoft; then
3616     arflags="-nologo"
3617     ar_o='-out:$@'
3618 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3619     arflags="rq"
3620     ar_o='$@'
3621 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3622     arflags='-Xany -r -c'
3623     ar_o='$@'
3624 elif $ar 2>&1 | grep -q "\[D\] "; then
3625     arflags="rcD"
3626     ar_o='$@'
3627 else
3628     arflags="rc"
3629     ar_o='$@'
3630 fi
3631
3632 add_cflags $extra_cflags
3633 add_cxxflags $extra_cxxflags
3634 add_asflags $extra_cflags
3635
3636 if test -n "$sysroot"; then
3637     case "$cc_type" in
3638         gcc|llvm_gcc|clang)
3639             add_cppflags --sysroot="$sysroot"
3640             add_ldflags --sysroot="$sysroot"
3641 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3642             add_cppflags -isysroot "$sysroot"
3643             add_ldflags -isysroot "$sysroot"
3644         ;;
3645         tms470)
3646             add_cppflags -I"$sysinclude"
3647             add_ldflags  --sysroot="$sysroot"
3648         ;;
3649     esac
3650 fi
3651
3652 if test "$cpu" = host; then
3653     enabled cross_compile &&
3654         die "--cpu=host makes no sense when cross-compiling."
3655
3656     case "$cc_type" in
3657         gcc|llvm_gcc)
3658             check_native(){
3659                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3660                 sed -n "/cc1.*$1=/{
3661                             s/.*$1=\\([^ ]*\\).*/\\1/
3662                             p
3663                             q
3664                         }" $TMPE
3665             }
3666             cpu=$(check_native -march || check_native -mcpu)
3667         ;;
3668     esac
3669
3670     test "${cpu:-host}" = host &&
3671         die "--cpu=host not supported with compiler $cc"
3672 fi
3673
3674 # Deal with common $arch aliases
3675 case "$arch" in
3676     aarch64|arm64)
3677         arch="aarch64"
3678     ;;
3679     arm*|iPad*|iPhone*)
3680         arch="arm"
3681     ;;
3682     mips*|IP*)
3683         arch="mips"
3684     ;;
3685     parisc*|hppa*)
3686         arch="parisc"
3687     ;;
3688     "Power Macintosh"|ppc*|powerpc*)
3689         arch="ppc"
3690     ;;
3691     s390|s390x)
3692         arch="s390"
3693     ;;
3694     sh4|sh)
3695         arch="sh4"
3696     ;;
3697     sun4u|sparc*)
3698         arch="sparc"
3699     ;;
3700     tilegx|tile-gx)
3701         arch="tilegx"
3702     ;;
3703     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3704         arch="x86"
3705     ;;
3706 esac
3707
3708 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3709 enable $arch
3710
3711 # Add processor-specific flags
3712 if enabled aarch64; then
3713
3714     case $cpu in
3715         armv*)
3716             cpuflags="-march=$cpu"
3717         ;;
3718         *)
3719             cpuflags="-mcpu=$cpu"
3720         ;;
3721     esac
3722
3723 elif enabled alpha; then
3724
3725     cpuflags="-mcpu=$cpu"
3726
3727 elif enabled arm; then
3728
3729     check_arm_arch() {
3730         check_cpp_condition stddef.h \
3731             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3732             $cpuflags
3733     }
3734
3735     probe_arm_arch() {
3736         if   check_arm_arch 4;        then echo armv4;
3737         elif check_arm_arch 4T;       then echo armv4t;
3738         elif check_arm_arch 5;        then echo armv5;
3739         elif check_arm_arch 5E;       then echo armv5e;
3740         elif check_arm_arch 5T;       then echo armv5t;
3741         elif check_arm_arch 5TE;      then echo armv5te;
3742         elif check_arm_arch 5TEJ;     then echo armv5te;
3743         elif check_arm_arch 6;        then echo armv6;
3744         elif check_arm_arch 6J;       then echo armv6j;
3745         elif check_arm_arch 6K;       then echo armv6k;
3746         elif check_arm_arch 6Z;       then echo armv6z;
3747         elif check_arm_arch 6ZK;      then echo armv6zk;
3748         elif check_arm_arch 6T2;      then echo armv6t2;
3749         elif check_arm_arch 7;        then echo armv7;
3750         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3751         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3752         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3753         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3754         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3755         fi
3756     }
3757
3758     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3759
3760     case $cpu in
3761         armv*)
3762             cpuflags="-march=$cpu"
3763             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3764         ;;
3765         *)
3766             cpuflags="-mcpu=$cpu"
3767             case $cpu in
3768                 cortex-a*)                               subarch=armv7a  ;;
3769                 cortex-r*)                               subarch=armv7r  ;;
3770                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3771                 arm11*)                                  subarch=armv6   ;;
3772                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3773                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3774                 *)                             subarch=$(probe_arm_arch) ;;
3775             esac
3776         ;;
3777     esac
3778
3779     case "$subarch" in
3780         armv5t*)    enable fast_clz                ;;
3781         armv[6-8]*)
3782             enable fast_clz
3783             disabled fast_unaligned || enable fast_unaligned
3784             ;;
3785     esac
3786
3787 elif enabled avr32; then
3788
3789     case $cpu in
3790         ap7[02]0[0-2])
3791             subarch="avr32_ap"
3792             cpuflags="-mpart=$cpu"
3793         ;;
3794         ap)
3795             subarch="avr32_ap"
3796             cpuflags="-march=$cpu"
3797         ;;
3798         uc3[ab]*)
3799             subarch="avr32_uc"
3800             cpuflags="-mcpu=$cpu"
3801         ;;
3802         uc)
3803             subarch="avr32_uc"
3804             cpuflags="-march=$cpu"
3805         ;;
3806     esac
3807
3808 elif enabled bfin; then
3809
3810     cpuflags="-mcpu=$cpu"
3811
3812 elif enabled mips; then
3813
3814     cpuflags="-march=$cpu"
3815
3816     case $cpu in
3817         24kc)
3818             disable mipsfpu
3819             disable mipsdspr1
3820             disable mipsdspr2
3821         ;;
3822         24kf*)
3823             disable mipsdspr1
3824             disable mipsdspr2
3825         ;;
3826         24kec|34kc|1004kc)
3827             disable mipsfpu
3828             disable mipsdspr2
3829         ;;
3830         24kef*|34kf*|1004kf*)
3831             disable mipsdspr2
3832         ;;
3833         74kc)
3834             disable mipsfpu
3835         ;;
3836     esac
3837
3838 elif enabled ppc; then
3839
3840     disable ldbrx
3841     disable vsx
3842
3843     case $(tolower $cpu) in
3844         601|ppc601|powerpc601)
3845             cpuflags="-mcpu=601"
3846             disable altivec
3847         ;;
3848         603*|ppc603*|powerpc603*)
3849             cpuflags="-mcpu=603"
3850             disable altivec
3851         ;;
3852         604*|ppc604*|powerpc604*)
3853             cpuflags="-mcpu=604"
3854             disable altivec
3855         ;;
3856         g3|75*|ppc75*|powerpc75*)
3857             cpuflags="-mcpu=750"
3858             disable altivec
3859         ;;
3860         g4|745*|ppc745*|powerpc745*)
3861             cpuflags="-mcpu=7450"
3862         ;;
3863         74*|ppc74*|powerpc74*)
3864             cpuflags="-mcpu=7400"
3865         ;;
3866         g5|970|ppc970|powerpc970)
3867             cpuflags="-mcpu=970"
3868         ;;
3869         power[3-8]*)
3870             cpuflags="-mcpu=$cpu"
3871         ;;
3872         cell)
3873             cpuflags="-mcpu=cell"
3874             enable ldbrx
3875         ;;
3876         e500mc)
3877             cpuflags="-mcpu=e500mc"
3878             disable altivec
3879         ;;
3880         e500v2)
3881             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3882             disable altivec
3883             disable dcbzl
3884         ;;
3885         e500)
3886             cpuflags="-mcpu=8540 -mhard-float"
3887             disable altivec
3888             disable dcbzl
3889         ;;
3890     esac
3891
3892 elif enabled sparc; then
3893
3894     case $cpu in
3895         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3896             cpuflags="-mcpu=$cpu"
3897         ;;
3898         ultrasparc*|niagara[234])
3899             cpuflags="-mcpu=$cpu"
3900         ;;
3901     esac
3902
3903 elif enabled x86; then
3904
3905     case $cpu in
3906         i[345]86|pentium)
3907             cpuflags="-march=$cpu"
3908             disable i686
3909             disable mmx
3910         ;;
3911         # targets that do NOT support nopl and conditional mov (cmov)
3912         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3913             cpuflags="-march=$cpu"
3914             disable i686
3915         ;;
3916         # targets that do support nopl and conditional mov (cmov)
3917         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3918         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3919             cpuflags="-march=$cpu"
3920             enable i686
3921             enable fast_cmov
3922         ;;
3923         # targets that do support conditional mov but on which it's slow
3924         pentium4|pentium4m|prescott|nocona)
3925             cpuflags="-march=$cpu"
3926             enable i686
3927             disable fast_cmov
3928         ;;
3929     esac
3930
3931 fi
3932
3933 if [ "$cpu" != generic ]; then
3934     add_cflags  $cpuflags
3935     add_asflags $cpuflags
3936 fi
3937
3938 # compiler sanity check
3939 check_exec <<EOF
3940 int main(void){ return 0; }
3941 EOF
3942 if test "$?" != 0; then
3943     echo "$cc is unable to create an executable file."
3944     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3945         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3946         echo "Only do this if you know what cross compiling means."
3947     fi
3948     die "C compiler test failed."
3949 fi
3950
3951 add_cppflags -D_ISOC99_SOURCE
3952 add_cxxflags -D__STDC_CONSTANT_MACROS
3953 check_cflags -std=c99
3954 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3955 #include <stdlib.h>
3956 EOF
3957 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3958 #include <stdlib.h>
3959 EOF
3960
3961 add_host_cppflags -D_ISOC99_SOURCE
3962 check_host_cflags -std=c99
3963 check_host_cflags -Wall
3964 check_host_cflags -O3
3965
3966 check_64bit(){
3967     arch32=$1
3968     arch64=$2
3969     expr=$3
3970     check_code cc "" "int test[2*($expr) - 1]" &&
3971         subarch=$arch64 || subarch=$arch32
3972 }
3973
3974 case "$arch" in
3975     aarch64|alpha|ia64)
3976         spic=$shared
3977     ;;
3978     mips)
3979         check_64bit mips mips64 '_MIPS_SIM > 1'
3980         spic=$shared
3981     ;;
3982     parisc)
3983         check_64bit parisc parisc64 'sizeof(void *) > 4'
3984         spic=$shared
3985     ;;
3986     ppc)
3987         check_64bit ppc ppc64 'sizeof(void *) > 4'
3988         spic=$shared
3989     ;;
3990     s390)
3991         check_64bit s390 s390x 'sizeof(void *) > 4'
3992         spic=$shared
3993     ;;
3994     sparc)
3995         check_64bit sparc sparc64 'sizeof(void *) > 4'
3996         spic=$shared
3997     ;;
3998     x86)
3999         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4000         # Treat x32 as x64 for now. Note it also needs spic=$shared
4001         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4002             subarch=x86_64
4003         if test "$subarch" = "x86_64"; then
4004             spic=$shared
4005         fi
4006     ;;
4007     ppc)
4008         check_cc <<EOF && subarch="ppc64"
4009         int test[(int)sizeof(char*) - 7];
4010 EOF
4011     ;;
4012 esac
4013
4014 enable $subarch
4015 enabled spic && enable_weak pic
4016
4017 # OS specific
4018 case $target_os in
4019     aix)
4020         SHFLAGS=-shared
4021         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4022         enabled shared && add_ldflags -Wl,-brtl
4023         ;;
4024     android)
4025         disable symver
4026         enable section_data_rel_ro
4027         SLIB_INSTALL_NAME='$(SLIBNAME)'
4028         SLIB_INSTALL_LINKS=
4029         # soname not set on purpose
4030         SHFLAGS=-shared
4031         ;;
4032     haiku)
4033         prefix_default="/boot/common"
4034         network_extralibs="-lnetwork"
4035         host_libs=
4036         ;;
4037     sunos)
4038         SHFLAGS='-shared -Wl,-h,$$(@F)'
4039         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4040         network_extralibs="-lsocket -lnsl"
4041         # When using suncc to build, the Solaris linker will mark
4042         # an executable with each instruction set encountered by
4043         # the Solaris assembler.  As our libraries contain their own
4044         # guards for processor-specific code, instead suppress
4045         # generation of the HWCAPS ELF section on Solaris x86 only.
4046         enabled_all suncc x86 &&
4047             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4048             add_ldflags -Wl,-M,mapfile
4049         nm_default='nm -P -g'
4050         ;;
4051     netbsd)
4052         disable symver
4053         oss_indev_extralibs="-lossaudio"
4054         oss_outdev_extralibs="-lossaudio"
4055         enabled gcc || check_ldflags -Wl,-zmuldefs
4056         ;;
4057     openbsd|bitrig)
4058         disable symver
4059         SHFLAGS='-shared'
4060         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4061         SLIB_INSTALL_LINKS=
4062         oss_indev_extralibs="-lossaudio"
4063         oss_outdev_extralibs="-lossaudio"
4064         ;;
4065     dragonfly)
4066         disable symver
4067         ;;
4068     freebsd)
4069         ;;
4070     bsd/os)
4071         add_extralibs -lpoll -lgnugetopt
4072         strip="strip -d"
4073         ;;
4074     darwin)
4075         enabled ppc && add_asflags -force_cpusubtype_ALL
4076         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4077         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4078         strip="${strip} -x"
4079         add_ldflags -Wl,-dynamic,-search_paths_first
4080         SLIBSUF=".dylib"
4081         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4082         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4083         objformat="macho"
4084         enabled x86_64 && objformat="macho64"
4085         enabled_any pic shared x86_64 ||
4086             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4087         ;;
4088     mingw32*)
4089         if test $target_os = "mingw32ce"; then
4090             disable network
4091         else
4092             target_os=mingw32
4093         fi
4094         LIBTARGET=i386
4095         if enabled x86_64; then
4096             LIBTARGET="i386:x86-64"
4097         elif enabled arm; then
4098             LIBTARGET=arm-wince
4099         fi
4100         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4101         check_ldflags -Wl,--nxcompat
4102         check_ldflags -Wl,--dynamicbase
4103         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4104         shlibdir_default="$bindir_default"
4105         SLIBPREF=""
4106         SLIBSUF=".dll"
4107         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4108         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4109         dlltool="${cross_prefix}dlltool"
4110         if check_cmd lib.exe -list; then
4111             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4112             if enabled x86_64; then
4113                 LIBTARGET=x64
4114             fi
4115         elif check_cmd $dlltool --version; then
4116             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4117         fi
4118         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4119         SLIB_INSTALL_LINKS=
4120         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4121         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4122         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4123         objformat="win32"
4124         ranlib=:
4125         enable dos_paths
4126         ;;
4127     win32|win64)
4128         disable symver
4129         if enabled shared; then
4130             # Link to the import library instead of the normal static library
4131             # for shared libs.
4132             LD_LIB='%.lib'
4133             # Cannot build both shared and static libs with MSVC or icl.
4134             disable static
4135         fi
4136         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4137         shlibdir_default="$bindir_default"
4138         SLIBPREF=""
4139         SLIBSUF=".dll"
4140         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4141         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4142         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4143         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4144         SLIB_INSTALL_LINKS=
4145         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4146         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4147         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4148         objformat="win32"
4149         ranlib=:
4150         enable dos_paths
4151         ;;
4152     cygwin*)
4153         target_os=cygwin
4154         shlibdir_default="$bindir_default"
4155         SLIBPREF="cyg"
4156         SLIBSUF=".dll"
4157         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4158         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4159         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4160         SLIB_INSTALL_LINKS=
4161         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4162         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4163         objformat="win32"
4164         enable dos_paths
4165         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4166         ;;
4167     *-dos|freedos|opendos)
4168         network_extralibs="-lsocket"
4169         objformat="coff"
4170         enable dos_paths
4171         add_cppflags -U__STRICT_ANSI__
4172         ;;
4173     linux)
4174         enable dv1394
4175         enable section_data_rel_ro
4176         ;;
4177     irix*)
4178         target_os=irix
4179         ranlib="echo ignoring ranlib"
4180         ;;
4181     os/2*)
4182         strip="lxlite -CS"
4183         ln_s="cp -f"
4184         objformat="aout"
4185         add_cppflags -D_GNU_SOURCE
4186         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4187         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4188         LIBSUF="_s.a"
4189         SLIBPREF=""
4190         SLIBSUF=".dll"
4191         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4192         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4193         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4194             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4195             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4196             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4197             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4198             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4199         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4200             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4201         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4202         enable dos_paths
4203         enable_weak os2threads
4204         ;;
4205     gnu/kfreebsd)
4206         add_cppflags -D_BSD_SOURCE
4207         ;;
4208     gnu)
4209         ;;
4210     qnx)
4211         add_cppflags -D_QNX_SOURCE
4212         network_extralibs="-lsocket"
4213         ;;
4214     symbian)
4215         SLIBSUF=".dll"
4216         enable dos_paths
4217         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4218         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4219         add_ldflags -Wl,--target1-abs,--no-undefined \
4220                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4221                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4222         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4223                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4224                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4225         ;;
4226     osf1)
4227         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4228         ;;
4229     minix)
4230         ;;
4231     plan9)
4232         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4233                      -D_REENTRANT_SOURCE        \
4234                      -D_RESEARCH_SOURCE         \
4235                      -DFD_SETSIZE=96            \
4236                      -DHAVE_SOCK_OPTS
4237         add_compat strtod.o strtod=avpriv_strtod
4238         network_extralibs='-lbsd'
4239         exeobjs=compat/plan9/main.o
4240         disable ffserver
4241         cp_f='cp'
4242         ;;
4243     none)
4244         ;;
4245     *)
4246         die "Unknown OS '$target_os'."
4247         ;;
4248 esac
4249
4250 # determine libc flavour
4251
4252 probe_libc(){
4253     pfx=$1
4254     pfx_no_=${pfx%_}
4255     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4256     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4257         eval ${pfx}libc_type=uclibc
4258         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4259     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4260         eval ${pfx}libc_type=glibc
4261         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4262     # MinGW headers can be installed on Cygwin, so check for newlib first.
4263     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4264         eval ${pfx}libc_type=newlib
4265         add_${pfx}cppflags -U__STRICT_ANSI__
4266     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4267     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4268         eval ${pfx}libc_type=mingw64
4269         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4270             add_compat msvcrt/snprintf.o
4271             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4272         fi
4273         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4274         eval test \$${pfx_no_}cc_type = "gcc" &&
4275             add_${pfx}cppflags -D__printf__=__gnu_printf__
4276     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4277          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4278         eval ${pfx}libc_type=mingw32
4279         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4280             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4281             die "ERROR: MinGW32 runtime version must be >= 3.15."
4282         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4283         eval test \$${pfx_no_}cc_type = "gcc" &&
4284             add_${pfx}cppflags -D__printf__=__gnu_printf__
4285     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4286         eval ${pfx}libc_type=msvcrt
4287         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4288         # 0x601 by default unless something else is set by the user.
4289         # This can easily lead to us detecting functions only present
4290         # in such new versions and producing binaries requiring windows 7.0.
4291         # Therefore explicitly set the default to XP unless the user has
4292         # set something else on the command line.
4293         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4294             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4295     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4296         eval ${pfx}libc_type=klibc
4297     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4298         eval ${pfx}libc_type=bionic
4299     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4300         eval ${pfx}libc_type=solaris
4301         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4302     fi
4303     check_${pfx}cc <<EOF
4304 #include <time.h>
4305 void *v = localtime_r;
4306 EOF
4307 test "$?" != 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
4308 #include <time.h>
4309 void *v = localtime_r;
4310 EOF
4311
4312 }
4313
4314 probe_libc
4315 test -n "$libc_type" && enable libc_$libc_type
4316 probe_libc host_
4317 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4318
4319 case $libc_type in
4320     bionic)
4321         add_compat strtod.o strtod=avpriv_strtod
4322         ;;
4323     msvcrt)
4324         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -le 18 ]; then
4325             add_compat strtod.o strtod=avpriv_strtod
4326             add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4327                                          _snprintf=avpriv_snprintf  \
4328                                          vsnprintf=avpriv_vsnprintf
4329         fi
4330         ;;
4331 esac
4332
4333 # hacks for compiler/libc/os combinations
4334
4335 if enabled_all tms470 libc_glibc; then
4336     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4337     add_cppflags -D__USER_LABEL_PREFIX__=
4338     add_cppflags -D__builtin_memset=memset
4339     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4340     add_cflags   -pds=48    # incompatible redefinition of macro
4341 fi
4342
4343 if enabled_all ccc libc_glibc; then
4344     add_ldflags -Wl,-z,now  # calls to libots crash without this
4345 fi
4346
4347 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4348     add_cppflags '-I\$(SRC_PATH)/compat/float'
4349
4350 esc(){
4351     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4352 }
4353
4354 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4355
4356 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4357
4358 set_default libdir
4359 : ${shlibdir_default:="$libdir"}
4360
4361 set_default $PATHS_LIST
4362 set_default nm
4363
4364 # we need to build at least one lib type
4365 if ! enabled_any static shared; then
4366     cat <<EOF
4367 At least one library type must be built.
4368 Specify --enable-static to build the static libraries or --enable-shared to
4369 build the shared libraries as well. To only build the shared libraries specify
4370 --disable-static in addition to --enable-shared.
4371 EOF
4372     exit 1;
4373 fi
4374
4375 die_license_disabled() {
4376     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4377 }
4378
4379 die_license_disabled_gpl() {
4380     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4381 }
4382
4383 die_license_disabled gpl frei0r
4384 die_license_disabled gpl libcdio
4385 die_license_disabled gpl libsmbclient
4386 die_license_disabled gpl libutvideo
4387 die_license_disabled gpl libvidstab
4388 die_license_disabled gpl libx264
4389 die_license_disabled gpl libx265
4390 die_license_disabled gpl libxavs
4391 die_license_disabled gpl libxvid
4392 die_license_disabled gpl libzvbi
4393 die_license_disabled gpl x11grab
4394
4395 die_license_disabled nonfree libaacplus
4396 die_license_disabled nonfree libfaac
4397 die_license_disabled nonfree nvenc
4398 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4399 enabled gpl && die_license_disabled_gpl nonfree openssl
4400
4401 die_license_disabled version3 libopencore_amrnb
4402 die_license_disabled version3 libopencore_amrwb
4403 die_license_disabled version3 libsmbclient
4404 die_license_disabled version3 libvo_aacenc
4405 die_license_disabled version3 libvo_amrwbenc
4406
4407 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4408
4409 disabled optimizations || check_cflags -fomit-frame-pointer
4410
4411 enable_weak_pic() {
4412     disabled pic && return
4413     enable pic
4414     add_cppflags -DPIC
4415     case "$target_os" in
4416     mingw*|cygwin*)
4417         ;;
4418     *)
4419         add_cflags -fPIC
4420         ;;
4421     esac
4422     add_asflags  -fPIC
4423 }
4424
4425 enabled pic && enable_weak_pic
4426
4427 check_cc <<EOF || die "Symbol mangling check failed."
4428 int ff_extern;
4429 EOF
4430 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4431 extern_prefix=${sym%%ff_extern*}
4432
4433 check_cc <<EOF && enable_weak inline_asm
4434 void foo(void) { __asm__ volatile ("" ::); }
4435 EOF
4436
4437 _restrict=
4438 for restrict_keyword in restrict __restrict__ __restrict; do
4439     check_cc <<EOF && _restrict=$restrict_keyword && break
4440 void foo(char * $restrict_keyword p);
4441 EOF
4442 done
4443
4444 check_cc <<EOF && enable pragma_deprecated
4445 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4446 EOF
4447
4448 check_cc <<EOF && enable attribute_packed
4449 struct { int x; } __attribute__((packed)) x;
4450 EOF
4451
4452 check_cc <<EOF && enable attribute_may_alias
4453 union { int x; } __attribute__((may_alias)) x;
4454 EOF
4455
4456 check_cc <<EOF || die "endian test failed"
4457 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4458 EOF
4459 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4460
4461 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] || enabled ppc64; then
4462     if ! enabled bigendian && enabled altivec ;then
4463         enable vsx
4464     fi
4465 fi
4466
4467 check_gas() {
4468     log "check_gas using '$as' as AS"
4469     # :vararg is used on aarch64, arm and ppc altivec
4470     check_as <<EOF || return 1
4471 .macro m n, y:vararg=0
4472 \n: .int \y
4473 .endm
4474 m x
4475 EOF
4476     # .altmacro is only used in arm asm
4477     ! enabled arm || check_as <<EOF || return 1
4478 .altmacro
4479 EOF
4480     enable gnu_as
4481     return 0
4482 }
4483
4484 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4485     nogas=:
4486     enabled_any arm aarch64 && nogas=die
4487     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4488     as_noop=-v
4489
4490     case $as_type in
4491         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4492         gcc)  gaspp_as_type=gas ;;
4493         *)    gaspp_as_type=$as_type ;;
4494     esac
4495
4496     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4497
4498     test "${as#*gas-preprocessor.pl}" != "$as" ||
4499     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4500         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4501
4502     if ! check_gas ; then
4503         as=${gas:=$as}
4504         check_gas || \
4505             $nogas "GNU assembler not found, install/update gas-preprocessor"
4506     fi
4507
4508     check_as <<EOF && enable as_func
4509 .func test
4510 .endfunc
4511 EOF
4512 fi
4513
4514 check_inline_asm inline_asm_labels '"1:\n"'
4515
4516 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4517
4518 if enabled aarch64; then
4519     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4520     # internal assembler in clang 3.3 does not support this instruction
4521     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4522     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4523
4524     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4525
4526 elif enabled alpha; then
4527
4528     check_cflags -mieee
4529
4530 elif enabled arm; then
4531
4532     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4533 float func(float a, float b){ return a+b; }
4534 EOF
4535
4536     enabled thumb && check_cflags -mthumb || check_cflags -marm
4537
4538     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4539         enable vfp_args
4540     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4541         case "${cross_prefix:-$cc}" in
4542             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4543             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4544 __asm__ (".eabi_attribute 28, 1");
4545 int main(void) { return 0; }
4546 EOF
4547         esac
4548         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4549     fi
4550
4551     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4552     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4553     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4554     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4555     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4556     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4557     enabled setend  && check_insn setend  'setend be'
4558
4559     [ $target_os = linux ] || [ $target_os = android ] ||
4560         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4561             $ARCH_EXT_LIST_ARM
4562
4563     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4564
4565     check_as <<EOF && enable as_dn_directive
4566 ra .dn d0.i16
4567 .unreq ra
4568 EOF
4569
4570     # llvm's integrated assembler supports .object_arch from llvm 3.5
4571     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4572 .object_arch armv4
4573 EOF
4574
4575     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4576
4577 elif enabled mips; then
4578
4579     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4580
4581     # Enable minimum ISA based on selected options
4582     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then
4583         add_cflags "-mips64r2"
4584         add_asflags "-mips64r2"
4585     elif enabled mips64 && enabled mipsfpu; then
4586         add_cflags "-mips64"
4587         add_asflags "-mips64"
4588     elif enabled mipsfpu || enabled mipsdspr1 || enabled mipsdspr2; then
4589         add_cflags "-mips32r2"
4590         add_asflags "-mips32r2"
4591     fi
4592
4593     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4594      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4595     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4596      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4597     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4598      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4599
4600 elif enabled parisc; then
4601
4602     if enabled gcc; then
4603         case $($cc -dumpversion) in
4604             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4605         esac
4606     fi
4607
4608 elif enabled ppc; then
4609
4610     enable local_aligned_8 local_aligned_16 local_aligned_32
4611
4612     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4613     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4614     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4615     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4616
4617     # AltiVec flags: The FSF version of GCC differs from the Apple version
4618     if enabled altivec; then
4619         check_cflags -maltivec -mabi=altivec &&
4620         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4621         check_cflags -faltivec
4622
4623         # check if our compiler supports Motorola AltiVec C API
4624         check_cc <<EOF || disable altivec
4625 $inc_altivec_h
4626 int main(void) {
4627     vector signed int v1 = (vector signed int) { 0 };
4628     vector signed int v2 = (vector signed int) { 1 };
4629     v1 = vec_add(v1, v2);
4630     return 0;
4631 }
4632 EOF
4633
4634         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4635     fi
4636
4637     if enabled vsx; then
4638         check_cflags -mvsx
4639     fi
4640 elif enabled x86; then
4641
4642     check_builtin rdtsc    intrin.h   "__rdtsc()"
4643     check_builtin mm_empty mmintrin.h "_mm_empty()"
4644
4645     enable local_aligned_8 local_aligned_16 local_aligned_32
4646
4647     # check whether EBP is available on x86
4648     # As 'i' is stored on the stack, this program will crash
4649     # if the base pointer is used to access it because the
4650     # base pointer is cleared in the inline assembly code.
4651     check_exec_crash <<EOF && enable ebp_available
4652 volatile int i=0;
4653 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4654 return i;
4655 EOF
4656
4657     # check whether EBX is available on x86
4658     check_inline_asm ebx_available '""::"b"(0)' &&
4659         check_inline_asm ebx_available '"":::"%ebx"'
4660
4661     # check whether xmm clobbers are supported
4662     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4663
4664     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4665         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4666
4667     # check whether binutils is new enough to compile SSSE3/MMXEXT
4668     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4669     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4670
4671     if ! disabled_any asm mmx yasm; then
4672         if check_cmd $yasmexe --version; then
4673             enabled x86_64 && yasm_extra="-m amd64"
4674             yasm_debug="-g dwarf2"
4675         elif check_cmd nasm -v; then
4676             yasmexe=nasm
4677             yasm_debug="-g -F dwarf"
4678             if enabled x86_64; then
4679                 case "$objformat" in
4680                     elf)   objformat=elf64 ;;
4681                     win32) objformat=win64 ;;
4682                 esac
4683             fi
4684         fi
4685
4686         YASMFLAGS="-f $objformat $yasm_extra"
4687         enabled pic               && append YASMFLAGS "-DPIC"
4688         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4689         case "$objformat" in
4690             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4691         esac
4692
4693         check_yasm "movbe ecx, [5]" && enable yasm ||
4694             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4695         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4696         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4697         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4698         check_yasm "CPU amdnop" || disable cpunop
4699     fi
4700
4701     case "$cpu" in
4702         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4703             disable fast_clz
4704         ;;
4705     esac
4706
4707 fi
4708
4709 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4710
4711 check_ldflags -Wl,--as-needed
4712 check_ldflags -Wl,-z,noexecstack
4713
4714 if check_func dlopen; then
4715     ldl=
4716 elif check_func dlopen -ldl; then
4717     ldl=-ldl
4718 fi
4719
4720 frei0r_filter_extralibs='$ldl'
4721 frei0r_src_filter_extralibs='$ldl'
4722 ladspa_filter_extralibs='$ldl'
4723 nvenc_encoder_extralibs='$ldl'
4724
4725 if ! disabled network; then
4726     check_func getaddrinfo $network_extralibs
4727     check_func getservbyport $network_extralibs
4728     check_func inet_aton $network_extralibs
4729
4730     check_type netdb.h "struct addrinfo"
4731     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4732     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4733     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4734     check_type poll.h "struct pollfd"
4735     check_type netinet/sctp.h "struct sctp_event_subscribe"
4736     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4737     check_type netinet/in.h "struct sockaddr_in6"
4738     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4739     check_type "sys/types.h sys/socket.h" socklen_t
4740
4741     # Prefer arpa/inet.h over winsock2
4742     if check_header arpa/inet.h ; then
4743         check_func closesocket
4744     elif check_header winsock2.h ; then
4745         check_func_headers winsock2.h closesocket -lws2 &&
4746             network_extralibs="-lws2" ||
4747         { check_func_headers winsock2.h closesocket -lws2_32 &&
4748             network_extralibs="-lws2_32"; } || disable winsock2_h network
4749         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4750
4751         check_type ws2tcpip.h socklen_t
4752         check_type ws2tcpip.h "struct addrinfo"
4753         check_type ws2tcpip.h "struct group_source_req"
4754         check_type ws2tcpip.h "struct ip_mreq_source"
4755         check_type ws2tcpip.h "struct ipv6_mreq"
4756         check_type winsock2.h "struct pollfd"
4757         check_struct winsock2.h "struct sockaddr" sa_len
4758         check_type ws2tcpip.h "struct sockaddr_in6"
4759         check_type ws2tcpip.h "struct sockaddr_storage"
4760     else
4761         disable network
4762     fi
4763 fi
4764
4765 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4766 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
4767 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4768 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4769 check_builtin sarestart signal.h "SA_RESTART"
4770 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4771
4772 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4773 check_func  ${malloc_prefix}memalign            && enable memalign
4774 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4775
4776 check_func  access
4777 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4778 check_func  fcntl
4779 check_func  fork
4780 check_func  gethrtime
4781 check_func  getopt
4782 check_func  getrusage
4783 check_func  gettimeofday
4784 check_func  gmtime_r
4785 check_func  isatty
4786 check_func  localtime_r
4787 check_func  mach_absolute_time
4788 check_func  mkstemp
4789 check_func  mmap
4790 check_func  mprotect
4791 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4792 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4793 check_func  sched_getaffinity
4794 check_func  setrlimit
4795 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4796 check_func  strerror_r
4797 check_func  sysconf
4798 check_func  sysctl
4799 check_func  usleep
4800
4801 check_func_headers conio.h kbhit
4802 check_func_headers io.h setmode
4803 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4804 check_func_headers stdlib.h getenv
4805
4806 check_func_headers windows.h CoTaskMemFree -lole32
4807 check_func_headers windows.h GetProcessAffinityMask
4808 check_func_headers windows.h GetProcessTimes
4809 check_func_headers windows.h GetSystemTimeAsFileTime
4810 check_func_headers windows.h MapViewOfFile
4811 check_func_headers windows.h PeekNamedPipe
4812 check_func_headers windows.h SetConsoleTextAttribute
4813 check_func_headers windows.h Sleep
4814 check_func_headers windows.h VirtualAlloc
4815 check_struct windows.h "CONDITION_VARIABLE" Ptr
4816 check_func_headers glob.h glob
4817 enabled xlib &&
4818     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4819
4820 check_header direct.h
4821 check_header dlfcn.h
4822 check_header dxva.h
4823 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4824 check_header io.h
4825 check_header libcrystalhd/libcrystalhd_if.h
4826 check_header mach/mach_time.h
4827 check_header malloc.h
4828 check_header net/udplite.h
4829 check_header poll.h
4830 check_header sys/mman.h
4831 check_header sys/param.h
4832 check_header sys/resource.h
4833 check_header sys/select.h
4834 check_header sys/time.h
4835 check_header sys/un.h
4836 check_header termios.h
4837 check_header unistd.h
4838 check_header vdpau/vdpau.h
4839 check_header vdpau/vdpau_x11.h
4840 check_header VideoDecodeAcceleration/VDADecoder.h
4841 check_header windows.h
4842 check_header X11/extensions/XvMClib.h
4843 check_header asm/types.h
4844
4845 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4846 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4847 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4848
4849 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4850
4851 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
4852
4853 if ! disabled w32threads && ! enabled pthreads; then
4854     check_func_headers "windows.h process.h" _beginthreadex &&
4855         enable w32threads || disable w32threads
4856 fi
4857
4858 # check for some common methods of building with pthread support
4859 # do this before the optional library checks as some of them require pthreads
4860 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4861     enable pthreads
4862     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4863         add_cflags -pthread
4864         add_extralibs -pthread
4865     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4866         add_cflags -pthreads
4867         add_extralibs -pthreads
4868     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4869         add_cflags -ldl -pthread
4870         add_extralibs -ldl -pthread
4871     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4872         add_extralibs -lpthreadGC2
4873     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4874         :
4875     elif ! check_func pthread_join && ! check_func pthread_create; then
4876         disable pthreads
4877     fi
4878     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4879 fi
4880
4881
4882 if enabled pthreads; then
4883   check_func pthread_cancel
4884 fi
4885
4886 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4887 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4888 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
4889
4890 check_lib math.h sin -lm && LIBM="-lm"
4891 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4892
4893 atan2f_args=2
4894 ldexpf_args=2
4895 powf_args=2
4896
4897 for func in $MATH_FUNCS; do
4898     eval check_mathfunc $func \${${func}_args:-1}
4899 done
4900
4901 # these are off by default, so fail if requested and not available
4902 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4903 enabled avfoundation_indev && { check_lib2 CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
4904                                 check_lib2 ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
4905 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4906                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4907                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4908 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4909 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4910 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4911 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4912 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4913 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4914 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4915 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4916 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4917 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4918                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4919                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4920 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4921 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4922 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4923 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"
4924 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4925 enabled fontconfig        && enable libfontconfig
4926 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4927 enabled libfreetype       && require_libfreetype
4928 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4929 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4930 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4931                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4932                                done || die "ERROR: libgsm not found"; }
4933 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4934 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4935 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4936 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4937 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4938 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4939 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4940 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4941 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4942 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
4943                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4944                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4945                                die "ERROR: libopenjpeg not found"; }
4946 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4947 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4948 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4949 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4950 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4951 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4952 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
4953                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
4954 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4955 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4956 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4957 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4958     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4959     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4960 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4961 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4962                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4963                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4964 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4965 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4966 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4967 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4968 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4969 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4970 enabled libvpx            && {
4971     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4972                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4973     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4974                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4975     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4976     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx || disable libvpx_vp9_encoder; } }
4977 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4978 enabled libwebp           && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
4979 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
4980                                { require libx264 x264.h x264_encoder_encode -lx264 &&
4981                                  warn "using libx264 without pkg-config"; } } &&
4982                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4983                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4984 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4985                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4986                                die "ERROR: libx265 version must be >= 17."; }
4987 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4988 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4989 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4990 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4991 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
4992                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
4993 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4994                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4995                                die "ERROR: openal not found"; } &&
4996                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4997                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4998 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4999                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
5000                                die "ERROR: opencl not found"; } &&
5001                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
5002                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
5003                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
5004 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
5005                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
5006                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
5007                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
5008                                die "ERROR: opengl not found."
5009                              }
5010 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
5011                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
5012                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
5013                                die "ERROR: openssl not found"; }
5014 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
5015
5016 if enabled gnutls; then
5017     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
5018     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
5019 fi
5020
5021 # libdc1394 check
5022 if enabled libdc1394; then
5023     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
5024         enable libdc1394_2; } ||
5025     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5026         enable libdc1394_1; } ||
5027     die "ERROR: No version of libdc1394 found "
5028 fi
5029 if ! disabled sdl; then
5030     SDL_CONFIG="${cross_prefix}sdl-config"
5031     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5032         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5033         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5034         enable sdl
5035     else
5036         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5037             sdl_cflags=$("${SDL_CONFIG}" --cflags)
5038             sdl_libs=$("${SDL_CONFIG}" --libs)
5039             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5040             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5041             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5042             enable sdl
5043         elif enabled sdl ; then
5044             die "ERROR: SDL not found"
5045         else
5046             disable sdl
5047         fi
5048     fi
5049 fi
5050 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5051
5052 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
5053 enabled makeinfo && (makeinfo --version | \
5054                      grep -q 'makeinfo (GNU texinfo) 5' > /dev/null 2>&1) \
5055     && enable makeinfo_html || disable makeinfo_html
5056 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5057 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5058 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5059 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5060
5061 check_header linux/fb.h
5062 check_header linux/videodev.h
5063 check_header linux/videodev2.h
5064 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5065
5066 check_header sys/videoio.h
5067 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5068
5069 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5070 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5071 # w32api 3.12 had it defined wrong
5072 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5073
5074 check_type "dshow.h" IBaseFilter
5075
5076 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5077 { check_header dev/bktr/ioctl_meteor.h &&
5078   check_header dev/bktr/ioctl_bt848.h; } ||
5079 { check_header machine/ioctl_meteor.h &&
5080   check_header machine/ioctl_bt848.h; } ||
5081 { check_header dev/video/meteor/ioctl_meteor.h &&
5082   check_header dev/video/bktr/ioctl_bt848.h; } ||
5083 check_header dev/ic/bt8xx.h
5084
5085 check_header sndio.h
5086 if check_struct sys/soundcard.h audio_buf_info bytes; then
5087     enable_safe sys/soundcard.h
5088 else
5089     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5090     #include <sys/soundcard.h>
5091     audio_buf_info abc;
5092 EOF
5093 fi
5094 check_header soundcard.h
5095
5096 enabled_any alsa_indev alsa_outdev &&
5097     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5098
5099 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5100     check_func jack_port_get_latency_range -ljack
5101
5102 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5103
5104 if enabled libcdio; then
5105     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5106     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5107     die "ERROR: No usable libcdio/cdparanoia found"
5108 fi
5109
5110 enabled xlib &&
5111     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5112
5113 if ! disabled libxcb; then
5114     check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5115         enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5116     } && disable x11grab && enable libxcb
5117
5118 if enabled libxcb; then
5119     disabled libxcb_shm || {
5120         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5121             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5122         } && check_header sys/shm.h && enable libxcb_shm; }
5123
5124     disabled libxcb_xfixes || {
5125         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5126             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5127         } && enable libxcb_xfixes; }
5128
5129     disabled libxcb_shape || {
5130         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5131             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5132         } && enable libxcb_shape; }
5133
5134     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5135     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5136 fi
5137 fi
5138
5139 if enabled x11grab; then
5140     enabled xlib || die "ERROR: Xlib not found"
5141     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5142     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5143 fi
5144
5145 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5146
5147 enabled dxva2api_h &&
5148     check_cc <<EOF && enable dxva2api_cobj
5149 #define _WIN32_WINNT 0x0600
5150 #define COBJMACROS
5151 #include <windows.h>
5152 #include <d3d9.h>
5153 #include <dxva2api.h>
5154 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5155 EOF
5156
5157 enabled vaapi &&
5158     check_lib va/va.h vaInitialize -lva ||
5159     disable vaapi
5160
5161 enabled vaapi && enabled xlib &&
5162     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
5163     enable vaapi_x11
5164
5165 enabled vdpau &&
5166     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5167     disable vdpau
5168
5169 enabled vdpau && enabled xlib &&
5170     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5171     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5172     enable vdpau_x11
5173
5174 # Funny iconv installations are not unusual, so check it after all flags have been set
5175 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5176
5177 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5178
5179 # add some useful compiler flags if supported
5180 check_cflags -Wdeclaration-after-statement
5181 check_cflags -Wall
5182 check_cflags -Wdisabled-optimization
5183 check_cflags -Wpointer-arith
5184 check_cflags -Wredundant-decls
5185 check_cflags -Wwrite-strings
5186 check_cflags -Wtype-limits
5187 check_cflags -Wundef
5188 check_cflags -Wmissing-prototypes
5189 check_cflags -Wno-pointer-to-int-cast
5190 check_cflags -Wstrict-prototypes
5191 check_cflags -Wempty-body
5192 enabled extra_warnings && check_cflags -Winline
5193
5194 check_disable_warning(){
5195     warning_flag=-W${1#-Wno-}
5196     test_cflags $warning_flag && add_cflags $1
5197 }
5198
5199 check_disable_warning -Wno-parentheses
5200 check_disable_warning -Wno-switch
5201 check_disable_warning -Wno-format-zero-length
5202 check_disable_warning -Wno-pointer-sign
5203
5204 # add some linker flags
5205 check_ldflags -Wl,--warn-common
5206 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5207 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5208 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5209
5210 # add some strip flags
5211 # -wN '..@*' is more selective than -x, but not available everywhere.
5212 check_stripflags -wN \'..@*\' || check_stripflags -x
5213
5214 enabled neon_clobber_test &&
5215     check_ldflags -Wl,--wrap,avcodec_open2              \
5216                   -Wl,--wrap,avcodec_decode_audio4      \
5217                   -Wl,--wrap,avcodec_decode_video2      \
5218                   -Wl,--wrap,avcodec_decode_subtitle2   \
5219                   -Wl,--wrap,avcodec_encode_audio2      \
5220                   -Wl,--wrap,avcodec_encode_video2      \
5221                   -Wl,--wrap,avcodec_encode_subtitle    \
5222                   -Wl,--wrap,swr_convert                \
5223                   -Wl,--wrap,avresample_convert ||
5224     disable neon_clobber_test
5225
5226 enabled xmm_clobber_test &&
5227     check_ldflags -Wl,--wrap,avcodec_open2              \
5228                   -Wl,--wrap,avcodec_decode_audio4      \
5229                   -Wl,--wrap,avcodec_decode_video2      \
5230                   -Wl,--wrap,avcodec_decode_subtitle2   \
5231                   -Wl,--wrap,avcodec_encode_audio2      \
5232                   -Wl,--wrap,avcodec_encode_video       \
5233                   -Wl,--wrap,avcodec_encode_video2      \
5234                   -Wl,--wrap,avcodec_encode_subtitle    \
5235                   -Wl,--wrap,swr_convert                \
5236                   -Wl,--wrap,avresample_convert         \
5237                   -Wl,--wrap,sws_scale ||
5238     disable xmm_clobber_test
5239
5240 echo "X{};" > $TMPV
5241 if test_ldflags -Wl,--version-script,$TMPV; then
5242     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5243     check_cc <<EOF && enable symver_asm_label
5244 void ff_foo(void) __asm__ ("av_foo@VERSION");
5245 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5246 EOF
5247     check_cc <<EOF && enable symver_gnu_asm
5248 __asm__(".symver ff_foo,av_foo@VERSION");
5249 void ff_foo(void) {}
5250 EOF
5251 fi
5252
5253 if [ -z "$optflags" ]; then
5254     if enabled small; then
5255         optflags=$cflags_size
5256     elif enabled optimizations; then
5257         optflags=$cflags_speed
5258     else
5259         optflags=$cflags_noopt
5260     fi
5261 fi
5262
5263 check_optflags(){
5264     check_cflags "$@"
5265     enabled lto && check_ldflags "$@"
5266 }
5267
5268
5269 if enabled lto; then
5270     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5271     check_cflags  -flto
5272     check_ldflags -flto $cpuflags
5273     disable inline_asm_direct_symbol_refs
5274 fi
5275
5276 check_optflags $optflags
5277 check_optflags -fno-math-errno
5278 check_optflags -fno-signed-zeros
5279
5280 enabled ftrapv && check_cflags -ftrapv
5281
5282 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5283 int x;
5284 EOF
5285
5286
5287 if enabled icc; then
5288     # Just warnings, no remarks
5289     check_cflags -w1
5290     # -wd: Disable following warnings
5291     # 144, 167, 556: -Wno-pointer-sign
5292     # 188: enumerated type mixed with another type
5293     # 1292: attribute "foo" ignored
5294     # 1419: external declaration in primary source file
5295     # 10006: ignoring unknown option -fno-signed-zeros
5296     # 10148: ignoring unknown option -Wno-parentheses
5297     # 10156: ignoring option '-W'; no argument required
5298     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5299     # 11030: Warning unknown option --as-needed
5300     # 10156: ignoring option '-export'; no argument required
5301     check_ldflags -wd10156,11030
5302     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5303     enable ebp_available
5304     # The test above does not test linking
5305     enabled lto && disable symver_asm_label
5306     if enabled x86_32; then
5307         icc_version=$($cc -dumpversion)
5308         test ${icc_version%%.*} -ge 11 &&
5309             check_cflags -falign-stack=maintain-16-byte ||
5310             disable aligned_stack
5311     fi
5312 elif enabled ccc; then
5313     # disable some annoying warnings
5314     add_cflags -msg_disable bitnotint
5315     add_cflags -msg_disable mixfuncvoid
5316     add_cflags -msg_disable nonstandcast
5317     add_cflags -msg_disable unsupieee
5318 elif enabled gcc; then
5319     check_optflags -fno-tree-vectorize
5320     check_cflags -Werror=format-security
5321     check_cflags -Werror=implicit-function-declaration
5322     check_cflags -Werror=missing-prototypes
5323     check_cflags -Werror=return-type
5324     check_cflags -Werror=vla
5325     check_cflags -Wformat
5326     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5327 elif enabled llvm_gcc; then
5328     check_cflags -mllvm -stack-alignment=16
5329 elif enabled clang; then
5330     check_cflags -mllvm -stack-alignment=16
5331     check_cflags -Qunused-arguments
5332     check_cflags -Werror=implicit-function-declaration
5333     check_cflags -Werror=missing-prototypes
5334     check_cflags -Werror=return-type
5335 elif enabled cparser; then
5336     add_cflags -Wno-missing-variable-declarations
5337     add_cflags -Wno-empty-statement
5338 elif enabled armcc; then
5339     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5340     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5341     # 2523: use of inline assembly is deprecated
5342     add_cflags -W${armcc_opt},--diag_suppress=2523
5343     add_cflags -W${armcc_opt},--diag_suppress=1207
5344     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5345     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5346     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5347     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5348 elif enabled tms470; then
5349     add_cflags -pds=824 -pds=837
5350     disable inline_asm
5351 elif enabled pathscale; then
5352     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5353 elif enabled_any msvc icl; then
5354     enabled x86_32 && disable aligned_stack
5355     enabled_all x86_32 debug && add_cflags -Oy-
5356     enabled debug && add_ldflags -debug
5357     enable pragma_deprecated
5358     if enabled icl; then
5359         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5360         # (correctly) on icl 13.x.
5361         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5362             add_cflags -Qansi-alias
5363         # Some inline asm is not compilable in debug
5364         if enabled debug; then
5365             disable ebp_available
5366             disable ebx_available
5367         fi
5368     fi
5369     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5370     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5371 fi
5372
5373 case $as_type in
5374     clang)
5375         add_asflags -Qunused-arguments
5376     ;;
5377 esac
5378
5379 case $ld_type in
5380     clang)
5381         check_ldflags -Qunused-arguments
5382     ;;
5383 esac
5384
5385 case $target_os in
5386     osf1)
5387         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5388     ;;
5389     plan9)
5390         add_cppflags -Dmain=plan9_main
5391     ;;
5392 esac
5393
5394 enable frame_thread_encoder
5395
5396 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5397
5398 check_deps $CONFIG_LIST       \
5399            $CONFIG_EXTRA      \
5400            $HAVE_LIST         \
5401            $ALL_COMPONENTS    \
5402
5403 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"
5404
5405
5406 if test $target_os = "haiku"; then
5407     disable memalign
5408     disable posix_memalign
5409 fi
5410
5411 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5412     prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5413     enable dxva2_lib
5414
5415 ! enabled_any memalign posix_memalign aligned_malloc &&
5416     enabled simd_align_16 && enable memalign_hack
5417
5418 # add_dep lib dep
5419 # -> enable ${lib}_deps_${dep}
5420 # -> add $dep to ${lib}_deps only once
5421 add_dep() {
5422     lib=$1
5423     dep=$2
5424     enabled "${lib}_deps_${dep}" && return 0
5425     enable  "${lib}_deps_${dep}"
5426     prepend "${lib}_deps" $dep
5427 }
5428
5429 # merge deps lib components
5430 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5431 merge_deps() {
5432     lib=$1
5433     shift
5434     for comp in $*; do
5435         enabled $comp || continue
5436         eval "dep=\"\$${comp}_deps\""
5437         for d in $dep; do
5438             add_dep $lib $d
5439         done
5440     done
5441 }
5442
5443 merge_deps libavfilter $FILTER_LIST
5444
5445 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5446
5447 for thread in $THREADS_LIST; do
5448     if enabled $thread; then
5449         test -n "$thread_type" &&
5450             die "ERROR: Only one thread type must be selected." ||
5451             thread_type="$thread"
5452     fi
5453 done
5454
5455 enabled zlib && add_cppflags -DZLIB_CONST
5456
5457 # conditional library dependencies, in linking order
5458 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5459 enabled aresample_filter    && prepend avfilter_deps "swresample"
5460 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5461 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5462 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5463 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5464 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5465 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5466 enabled pan_filter          && prepend avfilter_deps "swresample"
5467 enabled pp_filter           && prepend avfilter_deps "postproc"
5468 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5469 enabled resample_filter && prepend avfilter_deps "avresample"
5470 enabled sab_filter          && prepend avfilter_deps "swscale"
5471 enabled scale_filter    && prepend avfilter_deps "swscale"
5472 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5473 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5474 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5475 enabled uspp_filter         && prepend avfilter_deps "avcodec"
5476
5477 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5478
5479 enabled opus_decoder    && prepend avcodec_deps "swresample"
5480
5481 expand_deps(){
5482     lib_deps=${1}_deps
5483     eval "deps=\$$lib_deps"
5484     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5485     unique $lib_deps
5486 }
5487
5488 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5489 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5490
5491 map 'expand_deps $v' $LIBRARY_LIST
5492
5493 echo "install prefix            $prefix"
5494 echo "source path               $source_path"
5495 echo "C compiler                $cc"
5496 echo "C library                 $libc_type"
5497 if test "$host_cc" != "$cc"; then
5498     echo "host C compiler           $host_cc"
5499     echo "host C library            $host_libc_type"
5500 fi
5501 echo "ARCH                      $arch ($cpu)"
5502 if test "$build_suffix" != ""; then
5503     echo "build suffix              $build_suffix"
5504 fi
5505 if test "$progs_suffix" != ""; then
5506     echo "progs suffix              $progs_suffix"
5507 fi
5508 if test "$extra_version" != ""; then
5509     echo "version string suffix     $extra_version"
5510 fi
5511 echo "big-endian                ${bigendian-no}"
5512 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5513 if enabled x86; then
5514     echo "${yasmexe}                      ${yasm-no}"
5515     echo "MMX enabled               ${mmx-no}"
5516     echo "MMXEXT enabled            ${mmxext-no}"
5517     echo "3DNow! enabled            ${amd3dnow-no}"
5518     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5519     echo "SSE enabled               ${sse-no}"
5520     echo "SSSE3 enabled             ${ssse3-no}"
5521     echo "AVX enabled               ${avx-no}"
5522     echo "XOP enabled               ${xop-no}"
5523     echo "FMA3 enabled              ${fma3-no}"
5524     echo "FMA4 enabled              ${fma4-no}"
5525     echo "i686 features enabled     ${i686-no}"
5526     echo "CMOV is fast              ${fast_cmov-no}"
5527     echo "EBX available             ${ebx_available-no}"
5528     echo "EBP available             ${ebp_available-no}"
5529 fi
5530 if enabled aarch64; then
5531     echo "NEON enabled              ${neon-no}"
5532     echo "VFP enabled               ${vfp-no}"
5533 fi
5534 if enabled arm; then
5535     echo "ARMv5TE enabled           ${armv5te-no}"
5536     echo "ARMv6 enabled             ${armv6-no}"
5537     echo "ARMv6T2 enabled           ${armv6t2-no}"
5538     echo "VFP enabled               ${vfp-no}"
5539     echo "NEON enabled              ${neon-no}"
5540     echo "THUMB enabled             ${thumb-no}"
5541 fi
5542 if enabled mips; then
5543     echo "MIPS FPU enabled          ${mipsfpu-no}"
5544     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5545     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5546 fi
5547 if enabled ppc; then
5548     echo "AltiVec enabled           ${altivec-no}"
5549     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5550     echo "PPC VSX optimizations     ${vsx-no}"
5551     echo "dcbzl available           ${dcbzl-no}"
5552 fi
5553 echo "debug symbols             ${debug-no}"
5554 echo "strip symbols             ${stripping-no}"
5555 echo "optimize for size         ${small-no}"
5556 echo "optimizations             ${optimizations-no}"
5557 echo "static                    ${static-no}"
5558 echo "shared                    ${shared-no}"
5559 echo "postprocessing support    ${postproc-no}"
5560 echo "new filter support        ${avfilter-no}"
5561 echo "network support           ${network-no}"
5562 echo "threading support         ${thread_type-no}"
5563 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5564 echo "SDL support               ${sdl-no}"
5565 echo "opencl enabled            ${opencl-no}"
5566 echo "texi2html enabled         ${texi2html-no}"
5567 echo "perl enabled              ${perl-no}"
5568 echo "pod2man enabled           ${pod2man-no}"
5569 echo "makeinfo enabled          ${makeinfo-no}"
5570 echo "makeinfo supports HTML    ${makeinfo_html-no}"
5571 test -n "$random_seed" &&
5572     echo "random seed               ${random_seed}"
5573 echo
5574
5575 echo "External libraries:"
5576 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5577 echo
5578
5579 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5580     echo "Enabled ${type}s:"
5581     eval list=\$$(toupper $type)_LIST
5582     print_enabled '_*' $list | print_3_columns
5583     echo
5584 done
5585
5586 license="LGPL version 2.1 or later"
5587 if enabled nonfree; then
5588     license="nonfree and unredistributable"
5589 elif enabled gplv3; then
5590     license="GPL version 3 or later"
5591 elif enabled lgplv3; then
5592     license="LGPL version 3 or later"
5593 elif enabled gpl; then
5594     license="GPL version 2 or later"
5595 fi
5596
5597 echo "License: $license"
5598
5599 echo "Creating config.mak, config.h, and doc/config.texi..."
5600
5601 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5602
5603 enabled stripping || strip="echo skipping strip"
5604
5605 config_files="$TMPH config.mak doc/config.texi"
5606
5607 cat > config.mak <<EOF
5608 # Automatically generated by configure - do not modify!
5609 ifndef FFMPEG_CONFIG_MAK
5610 FFMPEG_CONFIG_MAK=1
5611 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5612 prefix=$prefix
5613 LIBDIR=\$(DESTDIR)$libdir
5614 SHLIBDIR=\$(DESTDIR)$shlibdir
5615 INCDIR=\$(DESTDIR)$incdir
5616 BINDIR=\$(DESTDIR)$bindir
5617 DATADIR=\$(DESTDIR)$datadir
5618 DOCDIR=\$(DESTDIR)$docdir
5619 MANDIR=\$(DESTDIR)$mandir
5620 SRC_PATH=$source_path
5621 ifndef MAIN_MAKEFILE
5622 SRC_PATH:=\$(SRC_PATH:.%=..%)
5623 endif
5624 CC_IDENT=$cc_ident
5625 ARCH=$arch
5626 INTRINSICS=$intrinsics
5627 CC=$cc
5628 CXX=$cxx
5629 AS=$as
5630 LD=$ld
5631 DEPCC=$dep_cc
5632 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5633 DEPAS=$as
5634 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5635 YASM=$yasmexe
5636 DEPYASM=$yasmexe
5637 AR=$ar
5638 ARFLAGS=$arflags
5639 AR_O=$ar_o
5640 RANLIB=$ranlib
5641 STRIP=$strip
5642 CP=cp -p
5643 LN_S=$ln_s
5644 CPPFLAGS=$CPPFLAGS
5645 CFLAGS=$CFLAGS
5646 CXXFLAGS=$CXXFLAGS
5647 ASFLAGS=$ASFLAGS
5648 AS_C=$AS_C
5649 AS_O=$AS_O
5650 CC_C=$CC_C
5651 CC_E=$CC_E
5652 CC_O=$CC_O
5653 CXX_C=$CXX_C
5654 CXX_O=$CXX_O
5655 LD_O=$LD_O
5656 LD_LIB=$LD_LIB
5657 LD_PATH=$LD_PATH
5658 DLLTOOL=$dlltool
5659 WINDRES=$windres
5660 DEPWINDRES=$dep_cc
5661 DOXYGEN=$doxygen
5662 LDFLAGS=$LDFLAGS
5663 LDEXEFLAGS=$LDEXEFLAGS
5664 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5665 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5666 YASMFLAGS=$YASMFLAGS
5667 BUILDSUF=$build_suffix
5668 PROGSSUF=$progs_suffix
5669 FULLNAME=$FULLNAME
5670 LIBPREF=$LIBPREF
5671 LIBSUF=$LIBSUF
5672 LIBNAME=$LIBNAME
5673 SLIBPREF=$SLIBPREF
5674 SLIBSUF=$SLIBSUF
5675 EXESUF=$EXESUF
5676 EXTRA_VERSION=$extra_version
5677 CCDEP=$CCDEP
5678 CXXDEP=$CXXDEP
5679 CCDEP_FLAGS=$CCDEP_FLAGS
5680 ASDEP=$ASDEP
5681 ASDEP_FLAGS=$ASDEP_FLAGS
5682 CC_DEPFLAGS=$CC_DEPFLAGS
5683 AS_DEPFLAGS=$AS_DEPFLAGS
5684 HOSTCC=$host_cc
5685 HOSTLD=$host_ld
5686 HOSTCFLAGS=$host_cflags
5687 HOSTCPPFLAGS=$host_cppflags
5688 HOSTEXESUF=$HOSTEXESUF
5689 HOSTLDFLAGS=$host_ldflags
5690 HOSTLIBS=$host_libs
5691 DEPHOSTCC=$host_cc
5692 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5693 HOSTCCDEP=$HOSTCCDEP
5694 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5695 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5696 HOSTCC_C=$HOSTCC_C
5697 HOSTCC_O=$HOSTCC_O
5698 HOSTLD_O=$HOSTLD_O
5699 TARGET_EXEC=$target_exec $target_exec_args
5700 TARGET_PATH=$target_path
5701 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5702 CFLAGS-ffplay=$sdl_cflags
5703 ZLIB=$($ldflags_filter -lz)
5704 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5705 EXTRALIBS=$extralibs
5706 COMPAT_OBJS=$compat_objs
5707 EXEOBJS=$exeobjs
5708 INSTALL=$install
5709 LIBTARGET=${LIBTARGET}
5710 SLIBNAME=${SLIBNAME}
5711 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5712 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5713 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5714 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5715 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5716 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5717 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5718 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5719 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5720 NOREDZONE_FLAGS=$noredzone_flags
5721 EOF
5722
5723 get_version(){
5724     lcname=lib${1}
5725     name=$(toupper $lcname)
5726     file=$source_path/$lcname/version.h
5727     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5728     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5729     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5730     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5731     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5732     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5733 }
5734
5735 map 'get_version $v' $LIBRARY_LIST
5736
5737 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5738
5739 print_program_libs(){
5740     eval "program_libs=\$${1}_libs"
5741     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5742 }
5743
5744 map 'print_program_libs $v' $PROGRAM_LIST
5745
5746 cat > $TMPH <<EOF
5747 /* Automatically generated by configure - do not modify! */
5748 #ifndef FFMPEG_CONFIG_H
5749 #define FFMPEG_CONFIG_H
5750 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5751 #define FFMPEG_LICENSE "$(c_escape $license)"
5752 #define CONFIG_THIS_YEAR 2015
5753 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5754 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5755 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5756 #define av_restrict $_restrict
5757 #define EXTERN_PREFIX "${extern_prefix}"
5758 #define EXTERN_ASM ${extern_prefix}
5759 #define BUILDSUF "$build_suffix"
5760 #define SLIBSUF "$SLIBSUF"
5761 #define HAVE_MMX2 HAVE_MMXEXT
5762 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5763 EOF
5764
5765 test -n "$assert_level" &&
5766     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5767
5768 test -n "$malloc_prefix" &&
5769     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5770
5771 if enabled yasm; then
5772     append config_files $TMPASM
5773     printf '' >$TMPASM
5774 fi
5775
5776 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5777
5778
5779 mkdir -p doc
5780 mkdir -p tests
5781 echo "@c auto-generated by configure" > doc/config.texi
5782
5783 print_config ARCH_   "$config_files" $ARCH_LIST
5784 print_config HAVE_   "$config_files" $HAVE_LIST
5785 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5786                                      $CONFIG_EXTRA      \
5787                                      $ALL_COMPONENTS    \
5788
5789 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5790 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5791
5792 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5793 cp_if_changed $TMPH config.h
5794 touch .config
5795
5796 enabled yasm && cp_if_changed $TMPASM config.asm
5797
5798 cat > $TMPH <<EOF
5799 /* Generated by ffconf */
5800 #ifndef AVUTIL_AVCONFIG_H
5801 #define AVUTIL_AVCONFIG_H
5802 EOF
5803
5804 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5805
5806 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5807
5808 cp_if_changed $TMPH libavutil/avconfig.h
5809
5810 if test -n "$WARNINGS"; then
5811     printf "\n$WARNINGS"
5812     enabled fatal_warnings && exit 1
5813 fi
5814
5815 # build pkg-config files
5816
5817 lib_version(){
5818     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5819 }
5820
5821 pkgconfig_generate(){
5822     name=$1
5823     shortname=${name#lib}${build_suffix}
5824     comment=$2
5825     version=$3
5826     libs=$4
5827     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5828     requires=${requires%, }
5829     enabled ${name#lib} || return 0
5830     mkdir -p $name
5831     cat <<EOF > $name/$name${build_suffix}.pc
5832 prefix=$prefix
5833 exec_prefix=\${prefix}
5834 libdir=$libdir
5835 includedir=$incdir
5836
5837 Name: $name
5838 Description: $comment
5839 Version: $version
5840 Requires: $(enabled shared || echo $requires)
5841 Requires.private: $(enabled shared && echo $requires)
5842 Conflicts:
5843 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5844 Libs.private: $(enabled shared && echo $libs)
5845 Cflags: -I\${includedir}
5846 EOF
5847
5848 mkdir -p doc/examples/pc-uninstalled
5849 includedir=${source_path}
5850 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5851     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5852 prefix=
5853 exec_prefix=
5854 libdir=\${pcfiledir}/../../../$name
5855 includedir=${includedir}
5856
5857 Name: $name
5858 Description: $comment
5859 Version: $version
5860 Requires: $requires
5861 Conflicts:
5862 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5863 Cflags: -I\${includedir}
5864 EOF
5865 }
5866
5867 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
5868 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5869 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5870 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5871 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5872 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5873 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
5874 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5875 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"