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 [auto]
 137   --disable-w32threads     disable Win32 threads [auto]
 138   --disable-os2threads     disable OS/2 threads [auto]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148   --disable-faan           disable floating point AAN (I)DCT code
 149   --disable-pixelutils     disable pixel utils in libavutil
 150
 151 Hardware accelerators:
 152   --disable-dxva2          disable DXVA2 code [autodetect]
 153   --disable-vaapi          disable VAAPI code [autodetect]
 154   --disable-vda            disable VDA code [autodetect]
 155   --disable-vdpau          disable VDPAU code [autodetect]
 156
 157 Individual component options:
 158   --disable-everything     disable all components listed below
 159   --disable-encoder=NAME   disable encoder NAME
 160   --enable-encoder=NAME    enable encoder NAME
 161   --disable-encoders       disable all encoders
 162   --disable-decoder=NAME   disable decoder NAME
 163   --enable-decoder=NAME    enable decoder NAME
 164   --disable-decoders       disable all decoders
 165   --disable-hwaccel=NAME   disable hwaccel NAME
 166   --enable-hwaccel=NAME    enable hwaccel NAME
 167   --disable-hwaccels       disable all hwaccels
 168   --disable-muxer=NAME     disable muxer NAME
 169   --enable-muxer=NAME      enable muxer NAME
 170   --disable-muxers         disable all muxers
 171   --disable-demuxer=NAME   disable demuxer NAME
 172   --enable-demuxer=NAME    enable demuxer NAME
 173   --disable-demuxers       disable all demuxers
 174   --enable-parser=NAME     enable parser NAME
 175   --disable-parser=NAME    disable parser NAME
 176   --disable-parsers        disable all parsers
 177   --enable-bsf=NAME        enable bitstream filter NAME
 178   --disable-bsf=NAME       disable bitstream filter NAME
 179   --disable-bsfs           disable all bitstream filters
 180   --enable-protocol=NAME   enable protocol NAME
 181   --disable-protocol=NAME  disable protocol NAME
 182   --disable-protocols      disable all protocols
 183   --enable-indev=NAME      enable input device NAME
 184   --disable-indev=NAME     disable input device NAME
 185   --disable-indevs         disable input devices
 186   --enable-outdev=NAME     enable output device NAME
 187   --disable-outdev=NAME    disable output device NAME
 188   --disable-outdevs        disable output devices
 189   --disable-devices        disable all devices
 190   --enable-filter=NAME     enable filter NAME
 191   --disable-filter=NAME    disable filter NAME
 192   --disable-filters        disable all filters
 193
 194 External library support:
 195   --enable-avisynth        enable reading of AviSynth script files [no]
 196   --disable-bzlib          disable bzlib [autodetect]
 197   --enable-fontconfig      enable fontconfig, 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-libmodplug      enable ModPlug via libmodplug [no]
 223   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 224   --enable-libnut          enable NUT (de)muxing via libnut,
 225                            native (de)muxer exists [no]
 226   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 227   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 228   --enable-libopencv       enable video filtering via libopencv [no]
 229   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 230   --enable-libopus         enable Opus de/encoding via libopus [no]
 231   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 232   --enable-libquvi         enable quvi input via libquvi [no]
 233   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 234   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 235   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 236   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 237   --enable-libsoxr         enable Include libsoxr resampling [no]
 238   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 239   --enable-libssh          enable SFTP protocol via libssh [no]
 240   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 241   --enable-libtheora       enable Theora encoding via libtheora [no]
 242   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 243   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 244   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 245   --enable-libvidstab      enable video stabilization using vid.stab [no]
 246   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 247   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 248   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 249                            native implementation exists [no]
 250   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 251   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 252   --enable-libwebp         enable WebP encoding via libwebp [no]
 253   --enable-libx264         enable H.264 encoding via x264 [no]
 254   --enable-libx265         enable HEVC encoding via x265 [no]
 255   --enable-libxavs         enable AVS encoding via xavs [no]
 256   --enable-libxcb          enable X11 grabbing using XCB [auto]
 257   --enable-libxcb-shm      enable X11 grabbing shm communication [auto]
 258   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [auto]
 259   --enable-libxcb-shape    enable X11 grabbing shape rendering [auto]
 260   --enable-libxvid         enable Xvid encoding via xvidcore,
 261                            native MPEG-4/Xvid encoder exists [no]
 262   --enable-libzmq          enable message passing via libzmq [no]
 263   --enable-libzvbi         enable teletext support via libzvbi [no]
 264   --disable-lzma           disable lzma [autodetect]
 265   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
 266   --enable-nvenc           enable NVIDIA NVENC support [no]
 267   --enable-openal          enable OpenAL 1.1 capture support [no]
 268   --enable-opencl          enable OpenCL code
 269   --enable-opengl          enable OpenGL rendering [no]
 270   --enable-openssl         enable openssl, needed for https support
 271                            if gnutls is not used [no]
 272   --disable-sdl            disable sdl [autodetect]
 273   --enable-x11grab         enable X11 grabbing (legacy) [no]
 274   --disable-xlib           disable xlib [autodetect]
 275   --disable-zlib           disable zlib [autodetect]
 276
 277 Toolchain options:
 278   --arch=ARCH              select architecture [$arch]
 279   --cpu=CPU                select the minimum required CPU (affects
 280                            instruction selection, may crash on older CPUs)
 281   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 282   --progs-suffix=SUFFIX    program name suffix []
 283   --enable-cross-compile   assume a cross-compiler is used
 284   --sysroot=PATH           root of cross-build tree
 285   --sysinclude=PATH        location of cross-build system headers
 286   --target-os=OS           compiler targets OS [$target_os]
 287   --target-exec=CMD        command to run executables on target
 288   --target-path=DIR        path to view of build directory on target
 289   --target-samples=DIR     path to samples directory on target
 290   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 291   --toolchain=NAME         set tool defaults according to NAME
 292   --nm=NM                  use nm tool NM [$nm_default]
 293   --ar=AR                  use archive tool AR [$ar_default]
 294   --as=AS                  use assembler AS [$as_default]
 295   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 296   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 297   --cc=CC                  use C compiler CC [$cc_default]
 298   --cxx=CXX                use C compiler CXX [$cxx_default]
 299   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 300   --ld=LD                  use linker LD [$ld_default]
 301   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 302   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 303   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 304   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 305   --host-cc=HOSTCC         use host C compiler HOSTCC
 306   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 307   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 308   --host-ld=HOSTLD         use host linker HOSTLD
 309   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 310   --host-libs=HLIBS        use libs HLIBS when linking for host
 311   --host-os=OS             compiler host OS [$target_os]
 312   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 313   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 314   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 315   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 316   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 317   --extra-version=STRING   version string suffix []
 318   --optflags=OPTFLAGS      override optimization-related compiler flags
 319   --build-suffix=SUFFIX    library name suffix []
 320   --enable-pic             build position-independent code
 321   --enable-thumb           compile for Thumb instruction set
 322   --enable-lto             use link-time optimization
 323
 324 Advanced options (experts only):
 325   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 326   --disable-symver         disable symbol versioning
 327   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 328   --disable-safe-bitstream-reader
 329                            disable buffer boundary checking in bitreaders
 330                            (faster, but may crash)
 331   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 332   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 333
 334 Optimization options (experts only):
 335   --disable-asm            disable all assembly optimizations
 336   --disable-altivec        disable AltiVec optimizations
 337   --disable-amd3dnow       disable 3DNow! optimizations
 338   --disable-amd3dnowext    disable 3DNow! extended optimizations
 339   --disable-mmx            disable MMX optimizations
 340   --disable-mmxext         disable MMXEXT optimizations
 341   --disable-sse            disable SSE optimizations
 342   --disable-sse2           disable SSE2 optimizations
 343   --disable-sse3           disable SSE3 optimizations
 344   --disable-ssse3          disable SSSE3 optimizations
 345   --disable-sse4           disable SSE4 optimizations
 346   --disable-sse42          disable SSE4.2 optimizations
 347   --disable-avx            disable AVX optimizations
 348   --disable-xop            disable XOP optimizations
 349   --disable-fma3           disable FMA3 optimizations
 350   --disable-fma4           disable FMA4 optimizations
 351   --disable-avx2           disable AVX2 optimizations
 352   --disable-armv5te        disable armv5te optimizations
 353   --disable-armv6          disable armv6 optimizations
 354   --disable-armv6t2        disable armv6t2 optimizations
 355   --disable-vfp            disable VFP optimizations
 356   --disable-neon           disable NEON optimizations
 357   --disable-inline-asm     disable use of inline assembly
 358   --disable-yasm           disable use of nasm/yasm assembly
 359   --disable-mips32r2       disable MIPS32R2 optimizations
 360   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 361   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 362   --disable-mipsfpu        disable floating point MIPS optimizations
 363   --disable-fast-unaligned consider unaligned accesses slow
 364
 365 Developer options (useful when working on FFmpeg itself):
 366   --disable-debug          disable debugging symbols
 367   --enable-debug=LEVEL     set the debug level [$debuglevel]
 368   --disable-optimizations  disable compiler optimizations
 369   --enable-extra-warnings  enable more compiler warnings
 370   --disable-stripping      disable stripping of executables and shared libraries
 371   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 372                            2 causes a slowdown at runtime.
 373   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 374   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 375                            leaks and errors, using the specified valgrind binary.
 376                            Cannot be combined with --target-exec
 377   --enable-ftrapv          Trap arithmetic overflows
 378   --samples=PATH           location of test samples for FATE, if not set use
 379                            \$FATE_SAMPLES at make invocation time.
 380   --enable-neon-clobber-test check NEON registers for clobbering (should be
 381                            used only for debugging purposes)
 382   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 383                            should be used only for debugging purposes)
 384   --enable-random          randomly enable/disable components
 385   --disable-random
 386   --enable-random=LIST     randomly enable/disable specific components or
 387   --disable-random=LIST    component groups. LIST is a comma-separated list
 388                            of NAME[:PROB] entries where NAME is a component
 389                            (group) and PROB the probability associated with
 390                            NAME (default 0.5).
 391   --random-seed=VALUE      seed value for --enable/disable-random
 392
 393 NOTE: Object files are built at the place where configure is launched.
 394 EOF
 395   exit 0
 396 }
 397
 398 quotes='""'
 399
 400 log(){
 401     echo "$@" >> $logfile
 402 }
 403
 404 log_file(){
 405     log BEGIN $1
 406     pr -n -t $1 >> $logfile
 407     log END $1
 408 }
 409
 410 echolog(){
 411     log "$@"
 412     echo "$@"
 413 }
 414
 415 warn(){
 416     log "WARNING: $*"
 417     WARNINGS="${WARNINGS}WARNING: $*\n"
 418 }
 419
 420 die(){
 421     echolog "$@"
 422     cat <<EOF
 423
 424 If you think configure made a mistake, make sure you are using the latest
 425 version from Git.  If the latest version fails, report the problem to the
 426 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 427 EOF
 428     if disabled logging; then
 429         cat <<EOF
 430 Rerun configure with logging enabled (do not use --disable-logging), and
 431 include the log this produces with your report.
 432 EOF
 433     else
 434         cat <<EOF
 435 Include the log file "$logfile" produced by configure as this will help
 436 solve the problem.
 437 EOF
 438     fi
 439     exit 1
 440 }
 441
 442 # Avoid locale weirdness, besides we really just want to translate ASCII.
 443 toupper(){
 444     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 445 }
 446
 447 tolower(){
 448     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 449 }
 450
 451 c_escape(){
 452     echo "$*" | sed 's/["\\]/\\\0/g'
 453 }
 454
 455 sh_quote(){
 456     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 457     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 458     echo "$v"
 459 }
 460
 461 cleanws(){
 462     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 463 }
 464
 465 filter(){
 466     pat=$1
 467     shift
 468     for v; do
 469         eval "case $v in $pat) echo $v ;; esac"
 470     done
 471 }
 472
 473 filter_out(){
 474     pat=$1
 475     shift
 476     for v; do
 477         eval "case $v in $pat) ;; *) echo $v ;; esac"
 478     done
 479 }
 480
 481 map(){
 482     m=$1
 483     shift
 484     for v; do eval $m; done
 485 }
 486
 487 add_suffix(){
 488     suffix=$1
 489     shift
 490     for v; do echo ${v}${suffix}; done
 491 }
 492
 493 set_all(){
 494     value=$1
 495     shift
 496     for var in $*; do
 497         eval $var=$value
 498     done
 499 }
 500
 501 set_weak(){
 502     value=$1
 503     shift
 504     for var; do
 505         eval : \${$var:=$value}
 506     done
 507 }
 508
 509 sanitize_var_name(){
 510     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 511 }
 512
 513 set_safe(){
 514     var=$1
 515     shift
 516     eval $(sanitize_var_name "$var")='$*'
 517 }
 518
 519 get_safe(){
 520     eval echo \$$(sanitize_var_name "$1")
 521 }
 522
 523 pushvar(){
 524     for pvar in $*; do
 525         eval level=\${${pvar}_level:=0}
 526         eval ${pvar}_${level}="\$$pvar"
 527         eval ${pvar}_level=$(($level+1))
 528     done
 529 }
 530
 531 popvar(){
 532     for pvar in $*; do
 533         eval level=\${${pvar}_level:-0}
 534         test $level = 0 && continue
 535         eval level=$(($level-1))
 536         eval $pvar="\${${pvar}_${level}}"
 537         eval ${pvar}_level=$level
 538         eval unset ${pvar}_${level}
 539     done
 540 }
 541
 542 enable(){
 543     set_all yes $*
 544 }
 545
 546 disable(){
 547     set_all no $*
 548 }
 549
 550 enable_weak(){
 551     set_weak yes $*
 552 }
 553
 554 disable_weak(){
 555     set_weak no $*
 556 }
 557
 558 enable_safe(){
 559     for var; do
 560         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 561     done
 562 }
 563
 564 disable_safe(){
 565     for var; do
 566         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 567     done
 568 }
 569
 570 do_enable_deep(){
 571     for var; do
 572         enabled $var && continue
 573         eval sel="\$${var}_select"
 574         eval sgs="\$${var}_suggest"
 575         pushvar var sgs
 576         enable_deep $sel
 577         popvar sgs
 578         enable_deep_weak $sgs
 579         popvar var
 580     done
 581 }
 582
 583 enable_deep(){
 584     do_enable_deep $*
 585     enable $*
 586 }
 587
 588 enable_deep_weak(){
 589     for var; do
 590         disabled $var && continue
 591         pushvar var
 592         do_enable_deep $var
 593         popvar var
 594         enable_weak $var
 595     done
 596 }
 597
 598 enabled(){
 599     test "${1#!}" = "$1" && op== || op=!=
 600     eval test "x\$${1#!}" $op "xyes"
 601 }
 602
 603 disabled(){
 604     test "${1#!}" = "$1" && op== || op=!=
 605     eval test "x\$${1#!}" $op "xno"
 606 }
 607
 608 enabled_all(){
 609     for opt; do
 610         enabled $opt || return 1
 611     done
 612 }
 613
 614 disabled_all(){
 615     for opt; do
 616         disabled $opt || return 1
 617     done
 618 }
 619
 620 enabled_any(){
 621     for opt; do
 622         enabled $opt && return 0
 623     done
 624 }
 625
 626 disabled_any(){
 627     for opt; do
 628         disabled $opt && return 0
 629     done
 630     return 1
 631 }
 632
 633 set_default(){
 634     for opt; do
 635         eval : \${$opt:=\$${opt}_default}
 636     done
 637 }
 638
 639 is_in(){
 640     value=$1
 641     shift
 642     for var in $*; do
 643         [ $var = $value ] && return 0
 644     done
 645     return 1
 646 }
 647
 648 do_check_deps(){
 649     for cfg; do
 650         cfg="${cfg#!}"
 651         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 652         disabled ${cfg}_checking && continue
 653         enable ${cfg}_checking
 654         append allopts $cfg
 655
 656         eval dep_all="\$${cfg}_deps"
 657         eval dep_any="\$${cfg}_deps_any"
 658         eval dep_sel="\$${cfg}_select"
 659         eval dep_sgs="\$${cfg}_suggest"
 660         eval dep_ifa="\$${cfg}_if"
 661         eval dep_ifn="\$${cfg}_if_any"
 662
 663         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 664         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 665         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 666
 667         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 668         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 669         enabled_all  $dep_all || disable $cfg
 670         enabled_any  $dep_any || disable $cfg
 671         disabled_any $dep_sel && disable $cfg
 672
 673         if enabled $cfg; then
 674             enable_deep $dep_sel
 675             enable_deep_weak $dep_sgs
 676         fi
 677
 678         disable ${cfg}_checking
 679     done
 680 }
 681
 682 check_deps(){
 683     unset allopts
 684
 685     do_check_deps "$@"
 686
 687     for cfg in $allopts; do
 688         enabled $cfg || continue
 689         eval dep_extralibs="\$${cfg}_extralibs"
 690         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 691     done
 692 }
 693
 694 print_config(){
 695     pfx=$1
 696     files=$2
 697     shift 2
 698     map 'eval echo "$v \${$v:-no}"' "$@" |
 699     awk "BEGIN { split(\"$files\", files) }
 700         {
 701             c = \"$pfx\" toupper(\$1);
 702             v = \$2;
 703             sub(/yes/, 1, v);
 704             sub(/no/,  0, v);
 705             for (f in files) {
 706                 file = files[f];
 707                 if (file ~ /\\.h\$/) {
 708                     printf(\"#define %s %d\\n\", c, v) >>file;
 709                 } else if (file ~ /\\.asm\$/) {
 710                     printf(\"%%define %s %d\\n\", c, v) >>file;
 711                 } else if (file ~ /\\.mak\$/) {
 712                     n = -v ? \"\" : \"!\";
 713                     printf(\"%s%s=yes\\n\", n, c) >>file;
 714                 } else if (file ~ /\\.texi\$/) {
 715                     pre = -v ? \"\" : \"@c \";
 716                     yesno = \$2;
 717                     c2 = tolower(c);
 718                     gsub(/_/, \"-\", c2);
 719                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 720                 }
 721             }
 722         }"
 723 }
 724
 725 print_enabled(){
 726     suf=$1
 727     shift
 728     for v; do
 729         enabled $v && printf "%s\n" ${v%$suf};
 730     done
 731 }
 732
 733 append(){
 734     var=$1
 735     shift
 736     eval "$var=\"\$$var $*\""
 737 }
 738
 739 prepend(){
 740     var=$1
 741     shift
 742     eval "$var=\"$* \$$var\""
 743 }
 744
 745 unique(){
 746     var=$1
 747     uniq_list=""
 748     for tok in $(eval echo \$$var); do
 749         uniq_list="$(filter_out $tok $uniq_list) $tok"
 750     done
 751     eval "$var=\"${uniq_list}\""
 752 }
 753
 754 add_cppflags(){
 755     append CPPFLAGS "$@"
 756 }
 757
 758 add_cflags(){
 759     append CFLAGS $($cflags_filter "$@")
 760 }
 761
 762 add_cxxflags(){
 763     append CXXFLAGS $($cflags_filter "$@")
 764 }
 765
 766 add_asflags(){
 767     append ASFLAGS $($asflags_filter "$@")
 768 }
 769
 770 add_ldflags(){
 771     append LDFLAGS $($ldflags_filter "$@")
 772 }
 773
 774 add_ldexeflags(){
 775     append LDEXEFLAGS $($ldflags_filter "$@")
 776 }
 777
 778 add_stripflags(){
 779     append ASMSTRIPFLAGS "$@"
 780 }
 781
 782 add_extralibs(){
 783     prepend extralibs $($ldflags_filter "$@")
 784 }
 785
 786 add_host_cppflags(){
 787     append host_cppflags "$@"
 788 }
 789
 790 add_host_cflags(){
 791     append host_cflags $($host_cflags_filter "$@")
 792 }
 793
 794 add_host_ldflags(){
 795     append host_ldflags $($host_ldflags_filter "$@")
 796 }
 797
 798 add_compat(){
 799     append compat_objs $1
 800     shift
 801     map 'add_cppflags -D$v' "$@"
 802 }
 803
 804 check_cmd(){
 805     log "$@"
 806     "$@" >> $logfile 2>&1
 807 }
 808
 809 check_stat(){
 810     log check_stat "$@"
 811     stat "$1" >> $logfile 2>&1
 812 }
 813
 814 cc_o(){
 815     eval printf '%s\\n' $CC_O
 816 }
 817
 818 cc_e(){
 819     eval printf '%s\\n' $CC_E
 820 }
 821
 822 check_cc(){
 823     log check_cc "$@"
 824     cat > $TMPC
 825     log_file $TMPC
 826     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 827 }
 828
 829 check_cxx(){
 830     log check_cxx "$@"
 831     cat > $TMPCPP
 832     log_file $TMPCPP
 833     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 834 }
 835
 836 check_oc(){
 837     log check_oc "$@"
 838     cat > $TMPM
 839     log_file $TMPM
 840     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 841 }
 842
 843 check_cpp(){
 844     log check_cpp "$@"
 845     cat > $TMPC
 846     log_file $TMPC
 847     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 848 }
 849
 850 as_o(){
 851     eval printf '%s\\n' $AS_O
 852 }
 853
 854 check_as(){
 855     log check_as "$@"
 856     cat > $TMPS
 857     log_file $TMPS
 858     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 859 }
 860
 861 check_inline_asm(){
 862     log check_inline_asm "$@"
 863     name="$1"
 864     code="$2"
 865     shift 2
 866     disable $name
 867     check_cc "$@" <<EOF && enable $name
 868 void foo(void){ __asm__ volatile($code); }
 869 EOF
 870 }
 871
 872 check_insn(){
 873     log check_insn "$@"
 874     check_inline_asm ${1}_inline "\"$2\""
 875     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 876 }
 877
 878 check_yasm(){
 879     log check_yasm "$@"
 880     echo "$1" > $TMPS
 881     log_file $TMPS
 882     shift 1
 883     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 884 }
 885
 886 ld_o(){
 887     eval printf '%s\\n' $LD_O
 888 }
 889
 890 check_ld(){
 891     log check_ld "$@"
 892     type=$1
 893     shift 1
 894     flags=$(filter_out '-l*|*.so' $@)
 895     libs=$(filter '-l*|*.so' $@)
 896     check_$type $($cflags_filter $flags) || return
 897     flags=$($ldflags_filter $flags)
 898     libs=$($ldflags_filter $libs)
 899     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 900 }
 901
 902 print_include(){
 903     hdr=$1
 904     test "${hdr%.h}" = "${hdr}" &&
 905         echo "#include $hdr"    ||
 906         echo "#include <$hdr>"
 907 }
 908
 909 check_code(){
 910     log check_code "$@"
 911     check=$1
 912     headers=$2
 913     code=$3
 914     shift 3
 915     {
 916         for hdr in $headers; do
 917             print_include $hdr
 918         done
 919         echo "int main(void) { $code; return 0; }"
 920     } | check_$check "$@"
 921 }
 922
 923 check_cppflags(){
 924     log check_cppflags "$@"
 925     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 926 int x;
 927 EOF
 928 }
 929
 930 test_cflags(){
 931     log test_cflags "$@"
 932     set -- $($cflags_filter "$@")
 933     check_cc "$@" <<EOF
 934 int x;
 935 EOF
 936 }
 937
 938 check_cflags(){
 939     log check_cflags "$@"
 940     test_cflags "$@" && add_cflags "$@"
 941 }
 942
 943 check_cxxflags(){
 944     log check_cxxflags "$@"
 945     set -- $($cflags_filter "$@")
 946     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 947 int x;
 948 EOF
 949 }
 950
 951 test_ldflags(){
 952     log test_ldflags "$@"
 953     check_ld "cc" "$@" <<EOF
 954 int main(void){ return 0; }
 955 EOF
 956 }
 957
 958 check_ldflags(){
 959     log check_ldflags "$@"
 960     test_ldflags "$@" && add_ldflags "$@"
 961 }
 962
 963 test_stripflags(){
 964     log test_stripflags "$@"
 965     # call check_cc to get a fresh TMPO
 966     check_cc <<EOF
 967 int main(void) { return 0; }
 968 EOF
 969     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 970 }
 971
 972 check_stripflags(){
 973     log check_stripflags "$@"
 974     test_stripflags "$@" && add_stripflags "$@"
 975 }
 976
 977 check_header(){
 978     log check_header "$@"
 979     header=$1
 980     shift
 981     disable_safe $header
 982     check_cpp "$@" <<EOF && enable_safe $header
 983 #include <$header>
 984 int x;
 985 EOF
 986 }
 987
 988 check_header_oc(){
 989     log check_header_oc "$@"
 990     rm -f -- "$TMPO"
 991     header=$1
 992     shift
 993     disable_safe $header
 994     {
 995        echo "#include <$header>"
 996        echo "int main(void) { return 0; }"
 997     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 998 }
 999
1000 check_func(){
1001     log check_func "$@"
1002     func=$1
1003     shift
1004     disable $func
1005     check_ld "cc" "$@" <<EOF && enable $func
1006 extern int $func();
1007 int main(void){ $func(); }
1008 EOF
1009 }
1010
1011 check_mathfunc(){
1012     log check_mathfunc "$@"
1013     func=$1
1014     narg=$2
1015     shift 2
1016     test $narg = 2 && args="f, g" || args="f"
1017     disable $func
1018     check_ld "cc" "$@" <<EOF && enable $func
1019 #include <math.h>
1020 float foo(float f, float g) { return $func($args); }
1021 int main(void){ return (int) foo; }
1022 EOF
1023 }
1024
1025 check_func_headers(){
1026     log check_func_headers "$@"
1027     headers=$1
1028     funcs=$2
1029     shift 2
1030     {
1031         for hdr in $headers; do
1032             print_include $hdr
1033         done
1034         for func in $funcs; do
1035             echo "long check_$func(void) { return (long) $func; }"
1036         done
1037         echo "int main(void) { return 0; }"
1038     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1039 }
1040
1041 check_class_headers_cpp(){
1042     log check_class_headers_cpp "$@"
1043     headers=$1
1044     classes=$2
1045     shift 2
1046     {
1047         for hdr in $headers; do
1048             echo "#include <$hdr>"
1049         done
1050         echo "int main(void) { "
1051         i=1
1052         for class in $classes; do
1053             echo "$class obj$i;"
1054             i=$(expr $i + 1)
1055         done
1056         echo "return 0; }"
1057     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1058 }
1059
1060 check_cpp_condition(){
1061     log check_cpp_condition "$@"
1062     header=$1
1063     condition=$2
1064     shift 2
1065     check_cpp "$@" <<EOF
1066 #include <$header>
1067 #if !($condition)
1068 #error "unsatisfied condition: $condition"
1069 #endif
1070 EOF
1071 }
1072
1073 check_lib(){
1074     log check_lib "$@"
1075     header="$1"
1076     func="$2"
1077     shift 2
1078     check_header $header && check_func $func "$@" && add_extralibs "$@"
1079 }
1080
1081 check_lib2(){
1082     log check_lib2 "$@"
1083     headers="$1"
1084     funcs="$2"
1085     shift 2
1086     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1087 }
1088
1089 check_lib_cpp(){
1090     log check_lib_cpp "$@"
1091     headers="$1"
1092     classes="$2"
1093     shift 2
1094     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1095 }
1096
1097 check_pkg_config(){
1098     log check_pkg_config "$@"
1099     pkgandversion="$1"
1100     pkg="${1%% *}"
1101     headers="$2"
1102     funcs="$3"
1103     shift 3
1104     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1105     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1106     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1107     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1108         set_safe ${pkg}_cflags $pkg_cflags   &&
1109         set_safe ${pkg}_libs   $pkg_libs
1110 }
1111
1112 check_exec(){
1113     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1114 }
1115
1116 check_exec_crash(){
1117     code=$(cat)
1118
1119     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1120     # are safe but may not be available everywhere.  Thus we use
1121     # raise(SIGTERM) instead.  The check is run in a subshell so we
1122     # can redirect the "Terminated" message from the shell.  SIGBUS
1123     # is not defined by standard C so it is used conditionally.
1124
1125     (check_exec "$@") >> $logfile 2>&1 <<EOF
1126 #include <signal.h>
1127 static void sighandler(int sig){
1128     raise(SIGTERM);
1129 }
1130 int foo(void){
1131     $code
1132 }
1133 int (*func_ptr)(void) = foo;
1134 int main(void){
1135     signal(SIGILL, sighandler);
1136     signal(SIGFPE, sighandler);
1137     signal(SIGSEGV, sighandler);
1138 #ifdef SIGBUS
1139     signal(SIGBUS, sighandler);
1140 #endif
1141     return func_ptr();
1142 }
1143 EOF
1144 }
1145
1146 check_type(){
1147     log check_type "$@"
1148     headers=$1
1149     type=$2
1150     shift 2
1151     disable_safe "$type"
1152     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1153 }
1154
1155 check_struct(){
1156     log check_struct "$@"
1157     headers=$1
1158     struct=$2
1159     member=$3
1160     shift 3
1161     disable_safe "${struct}_${member}"
1162     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1163         enable_safe "${struct}_${member}"
1164 }
1165
1166 check_builtin(){
1167     log check_builtin "$@"
1168     name=$1
1169     headers=$2
1170     builtin=$3
1171     shift 3
1172     disable "$name"
1173     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1174 }
1175
1176 check_compile_assert(){
1177     log check_compile_assert "$@"
1178     name=$1
1179     headers=$2
1180     condition=$3
1181     shift 3
1182     disable "$name"
1183     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1184 }
1185
1186 require(){
1187     name="$1"
1188     header="$2"
1189     func="$3"
1190     shift 3
1191     check_lib $header $func "$@" || die "ERROR: $name not found"
1192 }
1193
1194 require2(){
1195     name="$1"
1196     headers="$2"
1197     func="$3"
1198     shift 3
1199     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1200 }
1201
1202 require_cpp(){
1203     name="$1"
1204     headers="$2"
1205     classes="$3"
1206     shift 3
1207     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1208 }
1209
1210 use_pkg_config(){
1211     pkg="$1"
1212     check_pkg_config "$@" || return 1
1213     add_cflags    $(get_safe ${pkg}_cflags)
1214     add_extralibs $(get_safe ${pkg}_libs)
1215 }
1216
1217 require_pkg_config(){
1218     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1219 }
1220
1221 require_libfreetype(){
1222     log require_libfreetype "$@"
1223     pkg="freetype2"
1224     check_cmd $pkg_config --exists --print-errors $pkg \
1225       || die "ERROR: $pkg not found"
1226     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1227     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1228     {
1229         echo "#include <ft2build.h>"
1230         echo "#include FT_FREETYPE_H"
1231         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1232         echo "int main(void) { return 0; }"
1233     } | check_ld "cc" $pkg_cflags $pkg_libs \
1234       && set_safe ${pkg}_cflags $pkg_cflags \
1235       && set_safe ${pkg}_libs   $pkg_libs \
1236       || die "ERROR: $pkg not found"
1237     add_cflags    $(get_safe ${pkg}_cflags)
1238     add_extralibs $(get_safe ${pkg}_libs)
1239 }
1240
1241 hostcc_e(){
1242     eval printf '%s\\n' $HOSTCC_E
1243 }
1244
1245 hostcc_o(){
1246     eval printf '%s\\n' $HOSTCC_O
1247 }
1248
1249 check_host_cc(){
1250     log check_host_cc "$@"
1251     cat > $TMPC
1252     log_file $TMPC
1253     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1254 }
1255
1256 check_host_cpp(){
1257     log check_host_cpp "$@"
1258     cat > $TMPC
1259     log_file $TMPC
1260     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1261 }
1262
1263 check_host_cppflags(){
1264     log check_host_cppflags "$@"
1265     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1266 int x;
1267 EOF
1268 }
1269
1270 check_host_cflags(){
1271     log check_host_cflags "$@"
1272     set -- $($host_cflags_filter "$@")
1273     check_host_cc "$@" <<EOF && append host_cflags "$@"
1274 int x;
1275 EOF
1276 }
1277
1278 check_host_cpp_condition(){
1279     log check_host_cpp_condition "$@"
1280     header=$1
1281     condition=$2
1282     shift 2
1283     check_host_cpp "$@" <<EOF
1284 #include <$header>
1285 #if !($condition)
1286 #error "unsatisfied condition: $condition"
1287 #endif
1288 EOF
1289 }
1290
1291 apply(){
1292     file=$1
1293     shift
1294     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1295 }
1296
1297 cp_if_changed(){
1298     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1299     mkdir -p "$(dirname $2)"
1300     $cp_f "$1" "$2"
1301 }
1302
1303 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1304 # system-dependent things.
1305
1306 COMPONENT_LIST="
1307     bsfs
1308     decoders
1309     demuxers
1310     encoders
1311     filters
1312     hwaccels
1313     indevs
1314     muxers
1315     outdevs
1316     parsers
1317     protocols
1318 "
1319
1320 EXAMPLE_LIST="
1321     avio_reading_example
1322     decoding_encoding_example
1323     demuxing_decoding_example
1324     extract_mvs_example
1325     filter_audio_example
1326     filtering_audio_example
1327     filtering_video_example
1328     metadata_example
1329     muxing_example
1330     remuxing_example
1331     resampling_audio_example
1332     scaling_video_example
1333     transcode_aac_example
1334     transcoding_example
1335 "
1336
1337 EXTERNAL_LIBRARY_LIST="
1338     avisynth
1339     bzlib
1340     crystalhd
1341     decklink
1342     frei0r
1343     gnutls
1344     iconv
1345     ladspa
1346     libaacplus
1347     libass
1348     libbluray
1349     libbs2b
1350     libcaca
1351     libcdio
1352     libcelt
1353     libdc1394
1354     libfaac
1355     libfdk_aac
1356     libflite
1357     libfontconfig
1358     libfreetype
1359     libfribidi
1360     libgme
1361     libgsm
1362     libiec61883
1363     libilbc
1364     libmodplug
1365     libmp3lame
1366     libnut
1367     libopencore_amrnb
1368     libopencore_amrwb
1369     libopencv
1370     libopenjpeg
1371     libopus
1372     libpulse
1373     libquvi
1374     librtmp
1375     libschroedinger
1376     libshine
1377     libsmbclient
1378     libsoxr
1379     libspeex
1380     libssh
1381     libstagefright_h264
1382     libtheora
1383     libtwolame
1384     libutvideo
1385     libv4l2
1386     libvidstab
1387     libvo_aacenc
1388     libvo_amrwbenc
1389     libvorbis
1390     libvpx
1391     libwavpack
1392     libwebp
1393     libx264
1394     libx265
1395     libxavs
1396     libxcb
1397     libxcb_shm
1398     libxcb_shape
1399     libxcb_xfixes
1400     libxvid
1401     libzmq
1402     libzvbi
1403     lzma
1404     nvenc
1405     openal
1406     opencl
1407     opengl
1408     openssl
1409     sdl
1410     x11grab
1411     xlib
1412     zlib
1413 "
1414
1415 DOCUMENT_LIST="
1416     doc
1417     htmlpages
1418     manpages
1419     podpages
1420     txtpages
1421 "
1422
1423 FEATURE_LIST="
1424     ftrapv
1425     gray
1426     hardcoded_tables
1427     runtime_cpudetect
1428     safe_bitstream_reader
1429     shared
1430     small
1431     static
1432     swscale_alpha
1433 "
1434
1435 HWACCEL_LIST="
1436     dxva2
1437     vaapi
1438     vda
1439     vdpau
1440     xvmc
1441 "
1442
1443 LIBRARY_LIST="
1444     avcodec
1445     avdevice
1446     avfilter
1447     avformat
1448     avresample
1449     avutil
1450     postproc
1451     swresample
1452     swscale
1453 "
1454
1455 LICENSE_LIST="
1456     gpl
1457     nonfree
1458     version3
1459 "
1460
1461 PROGRAM_LIST="
1462     ffplay
1463     ffprobe
1464     ffserver
1465     ffmpeg
1466 "
1467
1468 SUBSYSTEM_LIST="
1469     dct
1470     dwt
1471     error_resilience
1472     faan
1473     fast_unaligned
1474     fft
1475     lsp
1476     lzo
1477     mdct
1478     pixelutils
1479     network
1480     rdft
1481 "
1482
1483 CONFIG_LIST="
1484     $COMPONENT_LIST
1485     $DOCUMENT_LIST
1486     $EXAMPLE_LIST
1487     $EXTERNAL_LIBRARY_LIST
1488     $FEATURE_LIST
1489     $HWACCEL_LIST
1490     $LICENSE_LIST
1491     $LIBRARY_LIST
1492     $PROGRAM_LIST
1493     $SUBSYSTEM_LIST
1494     fontconfig
1495     incompatible_libav_abi
1496     memalign_hack
1497     memory_poisoning
1498     neon_clobber_test
1499     pic
1500     pod2man
1501     raise_major
1502     thumb
1503     xmm_clobber_test
1504 "
1505
1506 THREADS_LIST="
1507     pthreads
1508     os2threads
1509     w32threads
1510 "
1511
1512 ATOMICS_LIST="
1513     atomics_gcc
1514     atomics_suncc
1515     atomics_win32
1516 "
1517
1518 ARCH_LIST="
1519     aarch64
1520     alpha
1521     arm
1522     avr32
1523     avr32_ap
1524     avr32_uc
1525     bfin
1526     ia64
1527     m68k
1528     mips
1529     mips64
1530     parisc
1531     ppc
1532     ppc64
1533     s390
1534     sh4
1535     sparc
1536     sparc64
1537     tilegx
1538     tilepro
1539     tomi
1540     x86
1541     x86_32
1542     x86_64
1543 "
1544
1545 ARCH_EXT_LIST_ARM="
1546     armv5te
1547     armv6
1548     armv6t2
1549     armv8
1550     neon
1551     vfp
1552     vfpv3
1553     setend
1554 "
1555
1556 ARCH_EXT_LIST_MIPS="
1557     mipsfpu
1558     mips32r2
1559     mipsdspr1
1560     mipsdspr2
1561 "
1562
1563 ARCH_EXT_LIST_X86_SIMD="
1564     amd3dnow
1565     amd3dnowext
1566     avx
1567     avx2
1568     fma3
1569     fma4
1570     mmx
1571     mmxext
1572     sse
1573     sse2
1574     sse3
1575     sse4
1576     sse42
1577     ssse3
1578     xop
1579 "
1580
1581 ARCH_EXT_LIST_PPC="
1582     altivec
1583     dcbzl
1584     ldbrx
1585     ppc4xx
1586     vsx
1587 "
1588
1589 ARCH_EXT_LIST_X86="
1590     $ARCH_EXT_LIST_X86_SIMD
1591     cpunop
1592     i686
1593 "
1594
1595 ARCH_EXT_LIST="
1596     $ARCH_EXT_LIST_ARM
1597     $ARCH_EXT_LIST_PPC
1598     $ARCH_EXT_LIST_X86
1599     $ARCH_EXT_LIST_MIPS
1600     loongson
1601 "
1602
1603 ARCH_FEATURES="
1604     aligned_stack
1605     fast_64bit
1606     fast_clz
1607     fast_cmov
1608     local_aligned_8
1609     local_aligned_16
1610     local_aligned_32
1611     simd_align_16
1612 "
1613
1614 BUILTIN_LIST="
1615     atomic_cas_ptr
1616     atomic_compare_exchange
1617     machine_rw_barrier
1618     MemoryBarrier
1619     mm_empty
1620     rdtsc
1621     sarestart
1622     sync_val_compare_and_swap
1623 "
1624 HAVE_LIST_CMDLINE="
1625     inline_asm
1626     symver
1627     yasm
1628 "
1629
1630 HAVE_LIST_PUB="
1631     bigendian
1632     fast_unaligned
1633     incompatible_libav_abi
1634 "
1635
1636 HEADERS_LIST="
1637     alsa_asoundlib_h
1638     altivec_h
1639     arpa_inet_h
1640     asm_types_h
1641     cdio_paranoia_h
1642     cdio_paranoia_paranoia_h
1643     CL_cl_h
1644     dev_bktr_ioctl_bt848_h
1645     dev_bktr_ioctl_meteor_h
1646     dev_ic_bt8xx_h
1647     dev_video_bktr_ioctl_bt848_h
1648     dev_video_meteor_ioctl_meteor_h
1649     direct_h
1650     dlfcn_h
1651     dxva_h
1652     ES2_gl_h
1653     gsm_h
1654     io_h
1655     mach_mach_time_h
1656     machine_ioctl_bt848_h
1657     machine_ioctl_meteor_h
1658     malloc_h
1659     openjpeg_1_5_openjpeg_h
1660     OpenGL_gl3_h
1661     poll_h
1662     sndio_h
1663     soundcard_h
1664     sys_mman_h
1665     sys_param_h
1666     sys_resource_h
1667     sys_select_h
1668     sys_soundcard_h
1669     sys_time_h
1670     sys_un_h
1671     sys_videoio_h
1672     termios_h
1673     udplite_h
1674     unistd_h
1675     windows_h
1676     winsock2_h
1677 "
1678
1679 INTRINSICS_LIST="
1680     intrinsics_neon
1681 "
1682
1683 MATH_FUNCS="
1684     atanf
1685     atan2f
1686     cbrt
1687     cbrtf
1688     cosf
1689     exp2
1690     exp2f
1691     expf
1692     isinf
1693     isnan
1694     ldexpf
1695     llrint
1696     llrintf
1697     log2
1698     log2f
1699     log10f
1700     lrint
1701     lrintf
1702     powf
1703     rint
1704     round
1705     roundf
1706     sinf
1707     trunc
1708     truncf
1709 "
1710
1711 SYSTEM_FUNCS="
1712     access
1713     aligned_malloc
1714     clock_gettime
1715     closesocket
1716     CommandLineToArgvW
1717     CoTaskMemFree
1718     CryptGenRandom
1719     dlopen
1720     fcntl
1721     flt_lim
1722     fork
1723     getaddrinfo
1724     gethrtime
1725     getopt
1726     GetProcessAffinityMask
1727     GetProcessMemoryInfo
1728     GetProcessTimes
1729     getrusage
1730     getservbyport
1731     GetSystemTimeAsFileTime
1732     gettimeofday
1733     glob
1734     glXGetProcAddress
1735     gmtime_r
1736     inet_aton
1737     isatty
1738     jack_port_get_latency_range
1739     kbhit
1740     localtime_r
1741     lzo1x_999_compress
1742     mach_absolute_time
1743     MapViewOfFile
1744     memalign
1745     mkstemp
1746     mmap
1747     mprotect
1748     nanosleep
1749     PeekNamedPipe
1750     posix_memalign
1751     pthread_cancel
1752     sched_getaffinity
1753     SetConsoleTextAttribute
1754     setmode
1755     setrlimit
1756     Sleep
1757     strerror_r
1758     sysconf
1759     sysctl
1760     usleep
1761     VirtualAlloc
1762     wglGetProcAddress
1763 "
1764
1765 TOOLCHAIN_FEATURES="
1766     as_dn_directive
1767     as_func
1768     asm_mod_q
1769     attribute_may_alias
1770     attribute_packed
1771     ebp_available
1772     ebx_available
1773     gnu_as
1774     gnu_windres
1775     ibm_asm
1776     inline_asm_labels
1777     inline_asm_nonlocal_labels
1778     inline_asm_direct_symbol_refs
1779     pragma_deprecated
1780     rsync_contimeout
1781     symver_asm_label
1782     symver_gnu_asm
1783     vfp_args
1784     xform_asm
1785     xmm_clobbers
1786 "
1787
1788 TYPES_LIST="
1789     CONDITION_VARIABLE_Ptr
1790     socklen_t
1791     struct_addrinfo
1792     struct_group_source_req
1793     struct_ip_mreq_source
1794     struct_ipv6_mreq
1795     struct_pollfd
1796     struct_rusage_ru_maxrss
1797     struct_sctp_event_subscribe
1798     struct_sockaddr_in6
1799     struct_sockaddr_sa_len
1800     struct_sockaddr_storage
1801     struct_stat_st_mtim_tv_nsec
1802     struct_v4l2_frmivalenum_discrete
1803 "
1804
1805 HAVE_LIST="
1806     $ARCH_EXT_LIST
1807     $(add_suffix _external $ARCH_EXT_LIST)
1808     $(add_suffix _inline   $ARCH_EXT_LIST)
1809     $ARCH_FEATURES
1810     $ATOMICS_LIST
1811     $BUILTIN_LIST
1812     $HAVE_LIST_CMDLINE
1813     $HAVE_LIST_PUB
1814     $HEADERS_LIST
1815     $INTRINSICS_LIST
1816     $MATH_FUNCS
1817     $SYSTEM_FUNCS
1818     $THREADS_LIST
1819     $TOOLCHAIN_FEATURES
1820     $TYPES_LIST
1821     atomics_native
1822     dos_paths
1823     dxva2api_cobj
1824     dxva2_lib
1825     libc_msvcrt
1826     libdc1394_1
1827     libdc1394_2
1828     makeinfo
1829     makeinfo_html
1830     perl
1831     pod2man
1832     sdl
1833     section_data_rel_ro
1834     texi2html
1835     threads
1836     vdpau_x11
1837     xlib
1838 "
1839
1840 # options emitted with CONFIG_ prefix but not available on the command line
1841 CONFIG_EXTRA="
1842     aandcttables
1843     ac3dsp
1844     audio_frame_queue
1845     audiodsp
1846     blockdsp
1847     bswapdsp
1848     cabac
1849     dvprofile
1850     exif
1851     faandct
1852     faanidct
1853     fdctdsp
1854     frame_thread_encoder
1855     gcrypt
1856     golomb
1857     gplv3
1858     h263dsp
1859     h264chroma
1860     h264dsp
1861     h264pred
1862     h264qpel
1863     hpeldsp
1864     huffman
1865     huffyuvdsp
1866     huffyuvencdsp
1867     idctdsp
1868     iirfilter
1869     intrax8
1870     lgplv3
1871     llauddsp
1872     llviddsp
1873     lpc
1874     me_cmp
1875     mpeg_er
1876     mpegaudio
1877     mpegaudiodsp
1878     mpegvideo
1879     mpegvideoenc
1880     nettle
1881     pixblockdsp
1882     qpeldsp
1883     rangecoder
1884     riffdec
1885     riffenc
1886     rtpdec
1887     rtpenc_chain
1888     sinewin
1889     startcode
1890     tpeldsp
1891     videodsp
1892     vp3dsp
1893     wma_freqs
1894 "
1895
1896 CMDLINE_SELECT="
1897     $ARCH_EXT_LIST
1898     $CONFIG_LIST
1899     $HAVE_LIST_CMDLINE
1900     $THREADS_LIST
1901     asm
1902     cross_compile
1903     debug
1904     extra_warnings
1905     logging
1906     lto
1907     optimizations
1908     rpath
1909     stripping
1910 "
1911
1912 PATHS_LIST="
1913     bindir
1914     datadir
1915     docdir
1916     incdir
1917     libdir
1918     mandir
1919     prefix
1920     shlibdir
1921 "
1922
1923 CMDLINE_SET="
1924     $PATHS_LIST
1925     ar
1926     arch
1927     as
1928     assert_level
1929     build_suffix
1930     cc
1931     cpu
1932     cross_prefix
1933     cxx
1934     dep_cc
1935     doxygen
1936     extra_version
1937     gas
1938     host_cc
1939     host_cflags
1940     host_ld
1941     host_ldflags
1942     host_libs
1943     host_os
1944     install
1945     ld
1946     logfile
1947     malloc_prefix
1948     nm
1949     optflags
1950     pkg_config
1951     pkg_config_flags
1952     progs_suffix
1953     random_seed
1954     ranlib
1955     samples
1956     strip
1957     sws_max_filter_size
1958     sysinclude
1959     sysroot
1960     target_exec
1961     target_os
1962     target_path
1963     target_samples
1964     tempprefix
1965     toolchain
1966     valgrind
1967     yasmexe
1968 "
1969
1970 CMDLINE_APPEND="
1971     extra_cflags
1972     extra_cxxflags
1973     host_cppflags
1974 "
1975
1976 # code dependency declarations
1977
1978 # architecture extensions
1979
1980 armv5te_deps="arm"
1981 armv6_deps="arm"
1982 armv6t2_deps="arm"
1983 armv8_deps="aarch64"
1984 neon_deps_any="aarch64 arm"
1985 intrinsics_neon_deps="neon"
1986 vfp_deps_any="aarch64 arm"
1987 vfpv3_deps="vfp"
1988 setend_deps="arm"
1989
1990 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1991
1992 mipsfpu_deps="mips"
1993 mips32r2_deps="mips"
1994 mipsdspr1_deps="mips"
1995 mipsdspr2_deps="mips"
1996
1997 altivec_deps="ppc"
1998 ppc4xx_deps="ppc"
1999 vsx_deps="ppc"
2000
2001 cpunop_deps="i686"
2002 x86_64_select="i686"
2003 x86_64_suggest="fast_cmov"
2004
2005 amd3dnow_deps="mmx"
2006 amd3dnowext_deps="amd3dnow"
2007 i686_deps="x86"
2008 mmx_deps="x86"
2009 mmxext_deps="mmx"
2010 sse_deps="mmxext"
2011 sse2_deps="sse"
2012 sse3_deps="sse2"
2013 ssse3_deps="sse3"
2014 sse4_deps="ssse3"
2015 sse42_deps="sse4"
2016 avx_deps="sse42"
2017 xop_deps="avx"
2018 fma3_deps="avx"
2019 fma4_deps="avx"
2020 avx2_deps="avx"
2021
2022 mmx_external_deps="yasm"
2023 mmx_inline_deps="inline_asm"
2024 mmx_suggest="mmx_external mmx_inline"
2025
2026 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2027     eval dep=\$${ext}_deps
2028     eval ${ext}_external_deps='"${dep}_external"'
2029     eval ${ext}_inline_deps='"${dep}_inline"'
2030     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2031 done
2032
2033 aligned_stack_if_any="aarch64 ppc x86"
2034 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2035 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2036 fast_unaligned_if_any="aarch64 ppc x86"
2037 simd_align_16_if_any="altivec neon sse"
2038
2039 # system capabilities
2040
2041 symver_if_any="symver_asm_label symver_gnu_asm"
2042
2043 # threading support
2044 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2045 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2046 atomics_win32_if="MemoryBarrier"
2047 atomics_native_if_any="$ATOMICS_LIST"
2048 w32threads_deps="atomics_native"
2049 threads_if_any="$THREADS_LIST"
2050
2051 # subsystems
2052 dct_select="rdft"
2053 error_resilience_select="me_cmp"
2054 faandct_deps="faan fdctdsp"
2055 faanidct_deps="faan idctdsp"
2056 frame_thread_encoder_deps="encoders threads"
2057 intrax8_select="error_resilience"
2058 mdct_select="fft"
2059 rdft_select="fft"
2060 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2061 mpeg_er_select="error_resilience"
2062 mpegaudio_select="mpegaudiodsp"
2063 mpegaudiodsp_select="dct"
2064 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2065 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2066
2067 # decoders / encoders
2068 aac_decoder_select="mdct sinewin"
2069 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2070 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2071 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2072 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2073 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2074 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2075 aic_decoder_select="golomb idctdsp"
2076 alac_encoder_select="lpc"
2077 als_decoder_select="bswapdsp"
2078 amrnb_decoder_select="lsp"
2079 amrwb_decoder_select="lsp"
2080 amv_decoder_select="sp5x_decoder exif"
2081 amv_encoder_select="aandcttables mpegvideoenc"
2082 ape_decoder_select="bswapdsp llauddsp"
2083 apng_decoder_select="zlib"
2084 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2085 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2086 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2087 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2088 atrac1_decoder_select="mdct sinewin"
2089 atrac3_decoder_select="mdct"
2090 atrac3p_decoder_select="mdct sinewin"
2091 avrn_decoder_select="exif"
2092 bink_decoder_select="blockdsp hpeldsp"
2093 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2094 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2095 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2096 cllc_decoder_select="bswapdsp"
2097 comfortnoise_encoder_select="lpc"
2098 cook_decoder_select="audiodsp mdct sinewin"
2099 cscd_decoder_select="lzo"
2100 cscd_decoder_suggest="zlib"
2101 dca_decoder_select="mdct"
2102 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2103 dnxhd_decoder_select="blockdsp idctdsp"
2104 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2105 dvvideo_decoder_select="dvprofile idctdsp"
2106 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2107 dxa_decoder_select="zlib"
2108 eac3_decoder_select="ac3_decoder"
2109 eac3_encoder_select="ac3_encoder"
2110 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2111 eatgq_decoder_select="aandcttables"
2112 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2113 exr_decoder_select="zlib"
2114 ffv1_decoder_select="golomb rangecoder"
2115 ffv1_encoder_select="rangecoder"
2116 ffvhuff_decoder_select="huffyuv_decoder"
2117 ffvhuff_encoder_select="huffyuv_encoder"
2118 fic_decoder_select="golomb"
2119 flac_decoder_select="golomb"
2120 flac_encoder_select="bswapdsp golomb lpc"
2121 flashsv_decoder_select="zlib"
2122 flashsv_encoder_select="zlib"
2123 flashsv2_encoder_select="zlib"
2124 flashsv2_decoder_select="zlib"
2125 flv_decoder_select="h263_decoder"
2126 flv_encoder_select="h263_encoder"
2127 fourxm_decoder_select="blockdsp bswapdsp"
2128 fraps_decoder_select="bswapdsp huffman"
2129 g2m_decoder_select="blockdsp idctdsp zlib"
2130 g729_decoder_select="audiodsp"
2131 h261_decoder_select="mpeg_er mpegvideo"
2132 h261_encoder_select="aandcttables mpegvideoenc"
2133 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2134 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2135 h263i_decoder_select="h263_decoder"
2136 h263p_encoder_select="h263_encoder"
2137 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2138 h264_decoder_suggest="error_resilience"
2139 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2140 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2141 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2142 iac_decoder_select="imc_decoder"
2143 imc_decoder_select="bswapdsp fft mdct sinewin"
2144 indeo3_decoder_select="hpeldsp"
2145 interplay_video_decoder_select="hpeldsp"
2146 jpegls_decoder_select="golomb mjpeg_decoder"
2147 jpegls_encoder_select="golomb"
2148 jv_decoder_select="blockdsp"
2149 lagarith_decoder_select="huffyuvdsp"
2150 ljpeg_encoder_select="aandcttables idctdsp"
2151 loco_decoder_select="golomb"
2152 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2153 metasound_decoder_select="lsp mdct sinewin"
2154 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2155 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2156 mjpeg_encoder_select="aandcttables mpegvideoenc"
2157 mjpegb_decoder_select="mjpeg_decoder"
2158 mlp_decoder_select="mlp_parser"
2159 motionpixels_decoder_select="bswapdsp"
2160 mp1_decoder_select="mpegaudio"
2161 mp1float_decoder_select="mpegaudio"
2162 mp2_decoder_select="mpegaudio"
2163 mp2float_decoder_select="mpegaudio"
2164 mp3_decoder_select="mpegaudio"
2165 mp3adu_decoder_select="mpegaudio"
2166 mp3adufloat_decoder_select="mpegaudio"
2167 mp3float_decoder_select="mpegaudio"
2168 mp3on4_decoder_select="mpegaudio"
2169 mp3on4float_decoder_select="mpegaudio"
2170 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2171 mpc8_decoder_select="mpegaudiodsp"
2172 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2173 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2174 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2175 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2176 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2177 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2178 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2179 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2180 mpeg4_encoder_select="h263_encoder"
2181 msmpeg4v1_decoder_select="h263_decoder"
2182 msmpeg4v2_decoder_select="h263_decoder"
2183 msmpeg4v2_encoder_select="h263_encoder"
2184 msmpeg4v3_decoder_select="h263_decoder"
2185 msmpeg4v3_encoder_select="h263_encoder"
2186 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2187 mxpeg_decoder_select="mjpeg_decoder"
2188 nellymoser_decoder_select="mdct sinewin"
2189 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2190 nuv_decoder_select="idctdsp lzo"
2191 on2avc_decoder_select="mdct"
2192 opus_decoder_deps="swresample"
2193 png_decoder_select="zlib"
2194 png_encoder_select="huffyuvencdsp zlib"
2195 prores_decoder_select="blockdsp idctdsp"
2196 prores_encoder_select="fdctdsp"
2197 qcelp_decoder_select="lsp"
2198 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2199 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2200 ra_144_decoder_select="audiodsp"
2201 ralf_decoder_select="golomb"
2202 rawvideo_decoder_select="bswapdsp"
2203 rtjpeg_decoder_select="me_cmp"
2204 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2205 rv10_encoder_select="h263_encoder"
2206 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2207 rv20_encoder_select="h263_encoder"
2208 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2209 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2210 shorten_decoder_select="golomb"
2211 sipr_decoder_select="lsp"
2212 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2213 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2214 sonic_decoder_select="golomb rangecoder"
2215 sonic_encoder_select="golomb rangecoder"
2216 sonic_ls_encoder_select="golomb rangecoder"
2217 sp5x_decoder_select="mjpeg_decoder"
2218 svq1_decoder_select="hpeldsp"
2219 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2220 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2221 svq3_decoder_suggest="zlib"
2222 tak_decoder_select="audiodsp"
2223 theora_decoder_select="vp3_decoder"
2224 thp_decoder_select="mjpeg_decoder"
2225 tiff_decoder_suggest="zlib lzma"
2226 tiff_encoder_suggest="zlib"
2227 truehd_decoder_select="mlp_parser"
2228 truemotion2_decoder_select="bswapdsp"
2229 truespeech_decoder_select="bswapdsp"
2230 tscc_decoder_select="zlib"
2231 twinvq_decoder_select="mdct lsp sinewin"
2232 utvideo_decoder_select="bswapdsp"
2233 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2234 vble_decoder_select="huffyuvdsp"
2235 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2236 vc1image_decoder_select="vc1_decoder"
2237 vorbis_decoder_select="mdct"
2238 vorbis_encoder_select="mdct"
2239 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2240 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2241 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2242 vp6a_decoder_select="vp6_decoder"
2243 vp6f_decoder_select="vp6_decoder"
2244 vp7_decoder_select="h264pred videodsp"
2245 vp8_decoder_select="h264pred videodsp"
2246 vp9_decoder_select="videodsp vp9_parser"
2247 webp_decoder_select="vp8_decoder"
2248 wmalossless_decoder_select="llauddsp"
2249 wmapro_decoder_select="mdct sinewin wma_freqs"
2250 wmav1_decoder_select="mdct sinewin wma_freqs"
2251 wmav1_encoder_select="mdct sinewin wma_freqs"
2252 wmav2_decoder_select="mdct sinewin wma_freqs"
2253 wmav2_encoder_select="mdct sinewin wma_freqs"
2254 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2255 wmv1_decoder_select="h263_decoder"
2256 wmv1_encoder_select="h263_encoder"
2257 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2258 wmv2_encoder_select="h263_encoder"
2259 wmv3_decoder_select="vc1_decoder"
2260 wmv3image_decoder_select="wmv3_decoder"
2261 zerocodec_decoder_select="zlib"
2262 zlib_decoder_select="zlib"
2263 zlib_encoder_select="zlib"
2264 zmbv_decoder_select="zlib"
2265 zmbv_encoder_select="zlib"
2266
2267 # hardware accelerators
2268 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2269 dxva2_deps="dxva2api_h"
2270 vaapi_deps="va_va_h"
2271 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2272 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2273 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2274 xvmc_deps="X11_extensions_XvMClib_h"
2275
2276 h263_vaapi_hwaccel_deps="vaapi"
2277 h263_vaapi_hwaccel_select="h263_decoder"
2278 h263_vdpau_hwaccel_deps="vdpau"
2279 h263_vdpau_hwaccel_select="h263_decoder"
2280 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2281 h264_dxva2_hwaccel_deps="dxva2"
2282 h264_dxva2_hwaccel_select="h264_decoder"
2283 h264_vaapi_hwaccel_deps="vaapi"
2284 h264_vaapi_hwaccel_select="h264_decoder"
2285 h264_vda_decoder_deps="vda"
2286 h264_vda_decoder_select="h264_decoder"
2287 h264_vda_hwaccel_deps="vda"
2288 h264_vda_hwaccel_select="h264_decoder"
2289 h264_vda_old_hwaccel_deps="vda"
2290 h264_vda_old_hwaccel_select="h264_decoder"
2291 h264_vdpau_decoder_deps="vdpau"
2292 h264_vdpau_decoder_select="h264_decoder"
2293 h264_vdpau_hwaccel_deps="vdpau"
2294 h264_vdpau_hwaccel_select="h264_decoder"
2295 mpeg_vdpau_decoder_deps="vdpau"
2296 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2297 mpeg_xvmc_hwaccel_deps="xvmc"
2298 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2299 mpeg1_vdpau_decoder_deps="vdpau"
2300 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2301 mpeg1_vdpau_hwaccel_deps="vdpau"
2302 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2303 mpeg1_xvmc_hwaccel_deps="xvmc"
2304 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2305 mpeg2_crystalhd_decoder_select="crystalhd"
2306 mpeg2_dxva2_hwaccel_deps="dxva2"
2307 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2308 mpeg2_vaapi_hwaccel_deps="vaapi"
2309 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2310 mpeg2_vdpau_hwaccel_deps="vdpau"
2311 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2312 mpeg2_xvmc_hwaccel_deps="xvmc"
2313 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2314 mpeg4_crystalhd_decoder_select="crystalhd"
2315 mpeg4_vaapi_hwaccel_deps="vaapi"
2316 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2317 mpeg4_vdpau_decoder_deps="vdpau"
2318 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2319 mpeg4_vdpau_hwaccel_deps="vdpau"
2320 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2321 msmpeg4_crystalhd_decoder_select="crystalhd"
2322 vc1_crystalhd_decoder_select="crystalhd"
2323 vc1_dxva2_hwaccel_deps="dxva2"
2324 vc1_dxva2_hwaccel_select="vc1_decoder"
2325 vc1_vaapi_hwaccel_deps="vaapi"
2326 vc1_vaapi_hwaccel_select="vc1_decoder"
2327 vc1_vdpau_decoder_deps="vdpau"
2328 vc1_vdpau_decoder_select="vc1_decoder"
2329 vc1_vdpau_hwaccel_deps="vdpau"
2330 vc1_vdpau_hwaccel_select="vc1_decoder"
2331 wmv3_crystalhd_decoder_select="crystalhd"
2332 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2333 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2334 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2335 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2336
2337 # parsers
2338 h264_parser_select="h264_decoder"
2339 hevc_parser_select="hevc_decoder"
2340 mpegvideo_parser_select="mpegvideo"
2341 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2342 vc1_parser_select="mpegvideo startcode vc1_decoder"
2343
2344 # external libraries
2345 libaacplus_encoder_deps="libaacplus"
2346 libcelt_decoder_deps="libcelt"
2347 libfaac_encoder_deps="libfaac"
2348 libfaac_encoder_select="audio_frame_queue"
2349 libfdk_aac_decoder_deps="libfdk_aac"
2350 libfdk_aac_encoder_deps="libfdk_aac"
2351 libfdk_aac_encoder_select="audio_frame_queue"
2352 libgme_demuxer_deps="libgme"
2353 libgsm_decoder_deps="libgsm"
2354 libgsm_encoder_deps="libgsm"
2355 libgsm_ms_decoder_deps="libgsm"
2356 libgsm_ms_encoder_deps="libgsm"
2357 libilbc_decoder_deps="libilbc"
2358 libilbc_encoder_deps="libilbc"
2359 libmodplug_demuxer_deps="libmodplug"
2360 libmp3lame_encoder_deps="libmp3lame"
2361 libmp3lame_encoder_select="audio_frame_queue"
2362 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2363 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2364 libopencore_amrnb_encoder_select="audio_frame_queue"
2365 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2366 libopenjpeg_decoder_deps="libopenjpeg"
2367 libopenjpeg_encoder_deps="libopenjpeg"
2368 libopus_decoder_deps="libopus"
2369 libopus_encoder_deps="libopus"
2370 libopus_encoder_select="audio_frame_queue"
2371 libquvi_demuxer_deps="libquvi"
2372 libschroedinger_decoder_deps="libschroedinger"
2373 libschroedinger_encoder_deps="libschroedinger"
2374 libshine_encoder_deps="libshine"
2375 libshine_encoder_select="audio_frame_queue"
2376 libspeex_decoder_deps="libspeex"
2377 libspeex_encoder_deps="libspeex"
2378 libspeex_encoder_select="audio_frame_queue"
2379 libstagefright_h264_decoder_deps="libstagefright_h264"
2380 libtheora_encoder_deps="libtheora"
2381 libtwolame_encoder_deps="libtwolame"
2382 libvo_aacenc_encoder_deps="libvo_aacenc"
2383 libvo_aacenc_encoder_select="audio_frame_queue"
2384 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2385 libvorbis_decoder_deps="libvorbis"
2386 libvorbis_encoder_deps="libvorbis"
2387 libvorbis_encoder_select="audio_frame_queue"
2388 libvpx_vp8_decoder_deps="libvpx"
2389 libvpx_vp8_encoder_deps="libvpx"
2390 libvpx_vp9_decoder_deps="libvpx"
2391 libvpx_vp9_encoder_deps="libvpx"
2392 libwavpack_encoder_deps="libwavpack"
2393 libwebp_encoder_deps="libwebp"
2394 libx264_encoder_deps="libx264"
2395 libx264rgb_encoder_deps="libx264"
2396 libx264rgb_encoder_select="libx264_encoder"
2397 libx265_encoder_deps="libx265"
2398 libxavs_encoder_deps="libxavs"
2399 libxvid_encoder_deps="libxvid"
2400 libutvideo_decoder_deps="libutvideo"
2401 libutvideo_encoder_deps="libutvideo"
2402 libzvbi_teletext_decoder_deps="libzvbi"
2403 nvenc_encoder_deps="nvenc"
2404
2405 # demuxers / muxers
2406 ac3_demuxer_select="ac3_parser"
2407 asf_demuxer_select="riffdec"
2408 asf_muxer_select="riffenc"
2409 asf_stream_muxer_select="asf_muxer"
2410 avi_demuxer_select="riffdec exif"
2411 avi_muxer_select="riffenc"
2412 avisynth_demuxer_deps="avisynth"
2413 avisynth_demuxer_select="riffdec"
2414 caf_demuxer_select="riffdec"
2415 dash_muxer_select="mp4_muxer"
2416 dirac_demuxer_select="dirac_parser"
2417 dts_demuxer_select="dca_parser"
2418 dtshd_demuxer_select="dca_parser"
2419 dv_demuxer_select="dvprofile"
2420 dv_muxer_select="dvprofile"
2421 dxa_demuxer_select="riffdec"
2422 eac3_demuxer_select="ac3_parser"
2423 f4v_muxer_select="mov_muxer"
2424 flac_demuxer_select="flac_parser"
2425 hds_muxer_select="flv_muxer"
2426 hls_muxer_select="mpegts_muxer"
2427 image2_alias_pix_demuxer_select="image2_demuxer"
2428 image2_brender_pix_demuxer_select="image2_demuxer"
2429 ipod_muxer_select="mov_muxer"
2430 ismv_muxer_select="mov_muxer"
2431 libnut_demuxer_deps="libnut"
2432 libnut_muxer_deps="libnut"
2433 matroska_audio_muxer_select="matroska_muxer"
2434 matroska_demuxer_select="riffdec"
2435 matroska_demuxer_suggest="bzlib lzo zlib"
2436 matroska_muxer_select="riffenc"
2437 mmf_muxer_select="riffenc"
2438 mov_demuxer_select="riffdec"
2439 mov_demuxer_suggest="zlib"
2440 mov_muxer_select="riffenc rtpenc_chain"
2441 mp3_demuxer_select="mpegaudio_parser"
2442 mp4_muxer_select="mov_muxer"
2443 mpegts_muxer_select="adts_muxer latm_muxer"
2444 mpegtsraw_demuxer_select="mpegts_demuxer"
2445 mxf_d10_muxer_select="mxf_muxer"
2446 nut_muxer_select="riffenc"
2447 nuv_demuxer_select="riffdec"
2448 oga_muxer_select="ogg_muxer"
2449 ogg_demuxer_select="golomb"
2450 opus_muxer_select="ogg_muxer"
2451 psp_muxer_select="mov_muxer"
2452 rtp_demuxer_select="sdp_demuxer"
2453 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2454 rtsp_demuxer_select="http_protocol rtpdec"
2455 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2456 sap_demuxer_select="sdp_demuxer"
2457 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2458 sdp_demuxer_select="rtpdec"
2459 smoothstreaming_muxer_select="ismv_muxer"
2460 spdif_muxer_select="aac_parser"
2461 spx_muxer_select="ogg_muxer"
2462 tak_demuxer_select="tak_parser"
2463 tg2_muxer_select="mov_muxer"
2464 tgp_muxer_select="mov_muxer"
2465 vobsub_demuxer_select="mpegps_demuxer"
2466 w64_demuxer_select="wav_demuxer"
2467 w64_muxer_select="wav_muxer"
2468 wav_demuxer_select="riffdec"
2469 wav_muxer_select="riffenc"
2470 webm_muxer_select="riffenc"
2471 wtv_demuxer_select="riffdec"
2472 wtv_muxer_select="riffenc"
2473 xmv_demuxer_select="riffdec"
2474 xwma_demuxer_select="riffdec"
2475
2476 # indevs / outdevs
2477 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2478 alsa_outdev_deps="alsa_asoundlib_h"
2479 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia -framework CoreGraphics"
2480 avfoundation_indev_select="avfoundation"
2481 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2482 caca_outdev_deps="libcaca"
2483 decklink_outdev_deps="decklink pthreads"
2484 decklink_outdev_extralibs="-lstdc++"
2485 decklink_indev_deps="decklink pthreads"
2486 decklink_indev_extralibs="-lstdc++"
2487 dshow_indev_deps="IBaseFilter"
2488 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2489 dv1394_indev_deps="dv1394"
2490 dv1394_indev_select="dv_demuxer"
2491 fbdev_indev_deps="linux_fb_h"
2492 fbdev_outdev_deps="linux_fb_h"
2493 gdigrab_indev_deps="CreateDIBSection"
2494 gdigrab_indev_extralibs="-lgdi32"
2495 gdigrab_indev_select="bmp_decoder"
2496 iec61883_indev_deps="libiec61883"
2497 jack_indev_deps="jack_jack_h sem_timedwait"
2498 lavfi_indev_deps="avfilter"
2499 libcdio_indev_deps="libcdio"
2500 libdc1394_indev_deps="libdc1394"
2501 libv4l2_indev_deps="libv4l2"
2502 openal_indev_deps="openal"
2503 opengl_outdev_deps="opengl"
2504 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2505 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2506 pulse_indev_deps="libpulse"
2507 pulse_outdev_deps="libpulse"
2508 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2509 qtkit_indev_select="qtkit"
2510 sdl_outdev_deps="sdl"
2511 sndio_indev_deps="sndio_h"
2512 sndio_outdev_deps="sndio_h"
2513 v4l_indev_deps="linux_videodev_h"
2514 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2515 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2516 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2517 vfwcap_indev_extralibs="-lavicap32"
2518 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2519 xv_outdev_extralibs="-lXv -lX11 -lXext"
2520 x11grab_indev_deps="x11grab"
2521 x11grab_xcb_indev_deps="libxcb"
2522
2523 # protocols
2524 bluray_protocol_deps="libbluray"
2525 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2526 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2527 ffrtmpcrypt_protocol_select="tcp_protocol"
2528 ffrtmphttp_protocol_deps="!librtmp_protocol"
2529 ffrtmphttp_protocol_select="http_protocol"
2530 ftp_protocol_select="tcp_protocol"
2531 gopher_protocol_select="network"
2532 http_protocol_select="tcp_protocol"
2533 httpproxy_protocol_select="tcp_protocol"
2534 https_protocol_select="tls_protocol"
2535 icecast_protocol_select="http_protocol"
2536 librtmp_protocol_deps="librtmp"
2537 librtmpe_protocol_deps="librtmp"
2538 librtmps_protocol_deps="librtmp"
2539 librtmpt_protocol_deps="librtmp"
2540 librtmpte_protocol_deps="librtmp"
2541 libsmbclient_protocol_deps="libsmbclient gplv3"
2542 libssh_protocol_deps="libssh"
2543 mmsh_protocol_select="http_protocol"
2544 mmst_protocol_select="network"
2545 rtmp_protocol_deps="!librtmp_protocol"
2546 rtmp_protocol_select="tcp_protocol"
2547 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2548 rtmps_protocol_deps="!librtmp_protocol"
2549 rtmps_protocol_select="tls_protocol"
2550 rtmpt_protocol_select="ffrtmphttp_protocol"
2551 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2552 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2553 rtp_protocol_select="udp_protocol"
2554 sctp_protocol_deps="struct_sctp_event_subscribe"
2555 sctp_protocol_select="network"
2556 srtp_protocol_select="rtp_protocol"
2557 tcp_protocol_select="network"
2558 tls_protocol_deps_any="openssl gnutls"
2559 tls_protocol_select="tcp_protocol"
2560 udp_protocol_select="network"
2561 udplite_protocol_select="network"
2562 unix_protocol_deps="sys_un_h"
2563 unix_protocol_select="network"
2564
2565 # filters
2566 amovie_filter_deps="avcodec avformat"
2567 aresample_filter_deps="swresample"
2568 ass_filter_deps="libass"
2569 asyncts_filter_deps="avresample"
2570 atempo_filter_deps="avcodec"
2571 atempo_filter_select="rdft"
2572 azmq_filter_deps="libzmq"
2573 blackframe_filter_deps="gpl"
2574 boxblur_filter_deps="gpl"
2575 bs2b_filter_deps="libbs2b"
2576 colormatrix_filter_deps="gpl"
2577 cropdetect_filter_deps="gpl"
2578 delogo_filter_deps="gpl"
2579 deshake_filter_select="pixelutils"
2580 drawtext_filter_deps="libfreetype"
2581 ebur128_filter_deps="gpl"
2582 flite_filter_deps="libflite"
2583 frei0r_filter_deps="frei0r dlopen"
2584 frei0r_src_filter_deps="frei0r dlopen"
2585 fspp_filter_deps="gpl"
2586 geq_filter_deps="gpl"
2587 histeq_filter_deps="gpl"
2588 hqdn3d_filter_deps="gpl"
2589 interlace_filter_deps="gpl"
2590 kerndeint_filter_deps="gpl"
2591 ladspa_filter_deps="ladspa dlopen"
2592 mcdeint_filter_deps="avcodec gpl"
2593 movie_filter_deps="avcodec avformat"
2594 mp_filter_deps="gpl avcodec swscale"
2595 mpdecimate_filter_deps="gpl"
2596 mpdecimate_filter_select="pixelutils"
2597 mptestsrc_filter_deps="gpl"
2598 negate_filter_deps="lut_filter"
2599 perspective_filter_deps="gpl"
2600 ocv_filter_deps="libopencv"
2601 owdenoise_filter_deps="gpl"
2602 pan_filter_deps="swresample"
2603 phase_filter_deps="gpl"
2604 pp_filter_deps="gpl postproc"
2605 pullup_filter_deps="gpl"
2606 removelogo_filter_deps="avcodec avformat swscale"
2607 resample_filter_deps="avresample"
2608 sab_filter_deps="gpl swscale"
2609 scale_filter_deps="swscale"
2610 select_filter_select="pixelutils"
2611 smartblur_filter_deps="gpl swscale"
2612 showspectrum_filter_deps="avcodec"
2613 showspectrum_filter_select="rdft"
2614 spp_filter_deps="gpl avcodec"
2615 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2616 stereo3d_filter_deps="gpl"
2617 subtitles_filter_deps="avformat avcodec libass"
2618 super2xsai_filter_deps="gpl"
2619 tinterlace_filter_deps="gpl"
2620 vidstabdetect_filter_deps="libvidstab"
2621 vidstabtransform_filter_deps="libvidstab"
2622 pixfmts_super2xsai_test_deps="super2xsai_filter"
2623 tinterlace_merge_test_deps="tinterlace_filter"
2624 tinterlace_pad_test_deps="tinterlace_filter"
2625 uspp_filter_deps="gpl avcodec"
2626 zmq_filter_deps="libzmq"
2627 zoompan_filter_deps="swscale"
2628
2629 # examples
2630 avio_reading="avformat avcodec avutil"
2631 avcodec_example_deps="avcodec avutil"
2632 decoding_encoding_example_deps="avcodec avformat avutil"
2633 demuxing_decoding_example_deps="avcodec avformat avutil"
2634 extract_mvs_example_deps="avcodec avformat avutil"
2635 filter_audio_example_deps="avfilter avutil"
2636 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2637 filtering_video_example_deps="avfilter avcodec avformat avutil"
2638 metadata_example_deps="avformat avutil"
2639 muxing_example_deps="avcodec avformat avutil swscale"
2640 remuxing_example_deps="avcodec avformat avutil"
2641 resampling_audio_example_deps="avutil swresample"
2642 scaling_video_example_deps="avutil swscale"
2643 transcode_aac_example_deps="avcodec avformat swresample"
2644 transcoding_example_deps="avfilter avcodec avformat avutil"
2645
2646 # libraries, in linking order
2647 avcodec_deps="avutil"
2648 avdevice_deps="avformat avcodec avutil"
2649 avfilter_deps="avutil"
2650 avformat_deps="avcodec avutil"
2651 avresample_deps="avutil"
2652 postproc_deps="avutil gpl"
2653 swresample_deps="avutil"
2654 swscale_deps="avutil"
2655
2656 # programs
2657 ffmpeg_deps="avcodec avfilter avformat swresample"
2658 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2659                null_filter
2660                setpts_filter trim_filter"
2661 ffplay_deps="avcodec avformat swscale swresample sdl"
2662 ffplay_libs='$sdl_libs'
2663 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2664 ffprobe_deps="avcodec avformat"
2665 ffserver_deps="avformat fork sarestart"
2666 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2667
2668 # documentation
2669 podpages_deps="perl"
2670 manpages_deps="perl pod2man"
2671 htmlpages_deps="perl"
2672 htmlpages_deps_any="makeinfo_html texi2html"
2673 txtpages_deps="perl makeinfo"
2674 doc_deps_any="manpages htmlpages podpages txtpages"
2675
2676 # default parameters
2677
2678 logfile="config.log"
2679
2680 # installation paths
2681 prefix_default="/usr/local"
2682 bindir_default='${prefix}/bin'
2683 datadir_default='${prefix}/share/ffmpeg'
2684 docdir_default='${prefix}/share/doc/ffmpeg'
2685 incdir_default='${prefix}/include'
2686 libdir_default='${prefix}/lib'
2687 mandir_default='${prefix}/share/man'
2688 shlibdir_default='${LIBDIR}'
2689
2690 # toolchain
2691 ar_default="ar"
2692 cc_default="gcc"
2693 cxx_default="g++"
2694 host_cc_default="gcc"
2695 cp_f="cp -f"
2696 doxygen_default="doxygen"
2697 install="install"
2698 ln_s="ln -s -f"
2699 nm_default="nm -g"
2700 objformat="elf"
2701 pkg_config_default=pkg-config
2702 ranlib_default="ranlib"
2703 strip_default="strip"
2704 yasmexe_default="yasm"
2705 windres_default="windres"
2706
2707 # OS
2708 target_os_default=$(tolower $(uname -s))
2709 host_os=$target_os_default
2710
2711 # machine
2712 if test "$target_os_default" = aix; then
2713     arch_default=$(uname -p)
2714     strip_default="strip -X32_64"
2715 else
2716     arch_default=$(uname -m)
2717 fi
2718 cpu="generic"
2719 intrinsics="none"
2720
2721 # configurable options
2722 enable $PROGRAM_LIST
2723 enable $DOCUMENT_LIST
2724 enable $EXAMPLE_LIST
2725 enable $(filter_out avresample $LIBRARY_LIST)
2726 enable stripping
2727
2728 enable asm
2729 enable debug
2730 enable doc
2731 enable faan faandct faanidct
2732 enable optimizations
2733 enable runtime_cpudetect
2734 enable safe_bitstream_reader
2735 enable static
2736 enable swscale_alpha
2737
2738 sws_max_filter_size_default=256
2739 set_default sws_max_filter_size
2740
2741 # Enable hwaccels by default.
2742 enable dxva2 vaapi vda vdpau xvmc
2743 enable xlib
2744
2745 # build settings
2746 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2747 LIBPREF="lib"
2748 LIBSUF=".a"
2749 FULLNAME='$(NAME)$(BUILDSUF)'
2750 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2751 SLIBPREF="lib"
2752 SLIBSUF=".so"
2753 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2754 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2755 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2756 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2757 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2758 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2759
2760 asflags_filter=echo
2761 cflags_filter=echo
2762 ldflags_filter=echo
2763
2764 AS_C='-c'
2765 AS_O='-o $@'
2766 CC_C='-c'
2767 CC_E='-E -o $@'
2768 CC_O='-o $@'
2769 CXX_C='-c'
2770 CXX_O='-o $@'
2771 LD_O='-o $@'
2772 LD_LIB='-l%'
2773 LD_PATH='-L'
2774 HOSTCC_C='-c'
2775 HOSTCC_E='-E -o $@'
2776 HOSTCC_O='-o $@'
2777 HOSTLD_O='-o $@'
2778
2779 host_libs='-lm'
2780 host_cflags_filter=echo
2781 host_ldflags_filter=echo
2782
2783 target_path='$(CURDIR)'
2784
2785 # since the object filename is not given with the -MM flag, the compiler
2786 # is only able to print the basename, and we must add the path ourselves
2787 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2788 DEPFLAGS='-MM'
2789
2790 # find source path
2791 if test -f configure; then
2792     source_path=.
2793 else
2794     source_path=$(cd $(dirname "$0"); pwd)
2795     echo "$source_path" | grep -q '[[:blank:]]' &&
2796         die "Out of tree builds are impossible with whitespace in source path."
2797     test -e "$source_path/config.h" &&
2798         die "Out of tree builds are impossible with config.h in source dir."
2799 fi
2800
2801 for v in "$@"; do
2802     r=${v#*=}
2803     l=${v%"$r"}
2804     r=$(sh_quote "$r")
2805     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2806 done
2807
2808 find_things(){
2809     thing=$1
2810     pattern=$2
2811     file=$source_path/$3
2812     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2813 }
2814
2815 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2816 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2817 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2818 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2819 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2820 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2821 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2822 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2823 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2824 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2825 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2826
2827 ALL_COMPONENTS="
2828     $BSF_LIST
2829     $DECODER_LIST
2830     $DEMUXER_LIST
2831     $ENCODER_LIST
2832     $FILTER_LIST
2833     $HWACCEL_LIST
2834     $INDEV_LIST
2835     $MUXER_LIST
2836     $OUTDEV_LIST
2837     $PARSER_LIST
2838     $PROTOCOL_LIST
2839 "
2840
2841 for n in $COMPONENT_LIST; do
2842     v=$(toupper ${n%s})_LIST
2843     eval enable \$$v
2844     eval ${n}_if_any="\$$v"
2845 done
2846
2847 enable $ARCH_EXT_LIST
2848
2849 die_unknown(){
2850     echo "Unknown option \"$1\"."
2851     echo "See $0 --help for available options."
2852     exit 1
2853 }
2854
2855 print_3_columns() {
2856     cat | tr ' ' '\n' | sort | pr -r -3 -t
2857 }
2858
2859 show_list() {
2860     suffix=_$1
2861     shift
2862     echo $* | sed s/$suffix//g | print_3_columns
2863     exit 0
2864 }
2865
2866 rand_list(){
2867     IFS=', '
2868     set -- $*
2869     unset IFS
2870     for thing; do
2871         comp=${thing%:*}
2872         prob=${thing#$comp}
2873         prob=${prob#:}
2874         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2875         echo "prob ${prob:-0.5}"
2876         printf '%s\n' $comp
2877     done
2878 }
2879
2880 do_random(){
2881     action=$1
2882     shift
2883     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2884     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2885 }
2886
2887 for opt do
2888     optval="${opt#*=}"
2889     case "$opt" in
2890         --extra-ldflags=*)
2891             add_ldflags $optval
2892         ;;
2893         --extra-ldexeflags=*)
2894             add_ldexeflags $optval
2895         ;;
2896         --extra-libs=*)
2897             add_extralibs $optval
2898         ;;
2899         --disable-devices)
2900             disable $INDEV_LIST $OUTDEV_LIST
2901         ;;
2902         --enable-debug=*)
2903             debuglevel="$optval"
2904         ;;
2905         --disable-programs)
2906             disable $PROGRAM_LIST
2907         ;;
2908         --disable-everything)
2909             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2910         ;;
2911         --disable-all)
2912             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2913             disable $LIBRARY_LIST $PROGRAM_LIST doc
2914         ;;
2915         --enable-random|--disable-random)
2916             action=${opt%%-random}
2917             do_random ${action#--} $COMPONENT_LIST
2918         ;;
2919         --enable-random=*|--disable-random=*)
2920             action=${opt%%-random=*}
2921             do_random ${action#--} $optval
2922         ;;
2923         --enable-*=*|--disable-*=*)
2924             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2925             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2926             eval list=\$$(toupper $thing)_LIST
2927             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2928             list=$(filter "$name" $list)
2929             [ "$list" = "" ] && warn "Option $opt did not match anything"
2930             $action $list
2931         ;;
2932         --enable-?*|--disable-?*)
2933             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2934             if is_in $option $COMPONENT_LIST; then
2935                 test $action = disable && action=unset
2936                 eval $action \$$(toupper ${option%s})_LIST
2937             elif is_in $option $CMDLINE_SELECT; then
2938                 $action $option
2939             else
2940                 die_unknown $opt
2941             fi
2942         ;;
2943         --list-*)
2944             NAME="${opt#--list-}"
2945             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2946             NAME=${NAME%s}
2947             eval show_list $NAME \$$(toupper $NAME)_LIST
2948         ;;
2949         --help|-h) show_help
2950         ;;
2951         --fatal-warnings) enable fatal_warnings
2952         ;;
2953         *)
2954             optname="${opt%%=*}"
2955             optname="${optname#--}"
2956             optname=$(echo "$optname" | sed 's/-/_/g')
2957             if is_in $optname $CMDLINE_SET; then
2958                 eval $optname='$optval'
2959             elif is_in $optname $CMDLINE_APPEND; then
2960                 append $optname "$optval"
2961             else
2962                 die_unknown $opt
2963             fi
2964         ;;
2965     esac
2966 done
2967
2968 disabled logging && logfile=/dev/null
2969
2970 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2971 set >> $logfile
2972
2973 test -n "$cross_prefix" && enable cross_compile
2974
2975 if enabled cross_compile; then
2976     test -n "$arch" && test -n "$target_os" ||
2977         die "Must specify target arch and OS when cross-compiling"
2978 fi
2979
2980 ar_default="${cross_prefix}${ar_default}"
2981 cc_default="${cross_prefix}${cc_default}"
2982 cxx_default="${cross_prefix}${cxx_default}"
2983 nm_default="${cross_prefix}${nm_default}"
2984 pkg_config_default="${cross_prefix}${pkg_config_default}"
2985 ranlib_default="${cross_prefix}${ranlib_default}"
2986 strip_default="${cross_prefix}${strip_default}"
2987 windres_default="${cross_prefix}${windres_default}"
2988
2989 sysinclude_default="${sysroot}/usr/include"
2990
2991 test -n "$valgrind" && toolchain="valgrind-memcheck"
2992
2993 case "$toolchain" in
2994     clang-asan)
2995         cc_default="clang"
2996         add_cflags  -fsanitize=address
2997         add_ldflags -fsanitize=address
2998     ;;
2999     clang-tsan)
3000         cc_default="clang"
3001         add_cflags  -fsanitize=thread -pie
3002         add_ldflags -fsanitize=thread -pie
3003     ;;
3004     clang-usan)
3005         cc_default="clang"
3006         add_cflags  -fsanitize=undefined
3007         add_ldflags -fsanitize=undefined
3008     ;;
3009     gcc-asan)
3010         cc_default="gcc"
3011         add_cflags  -fsanitize=address
3012         add_ldflags -fsanitize=address
3013     ;;
3014     gcc-tsan)
3015         cc_default="gcc"
3016         add_cflags  -fsanitize=thread -pie -fPIC
3017         add_ldflags -fsanitize=thread -pie -fPIC
3018     ;;
3019     gcc-usan)
3020         cc_default="gcc"
3021         add_cflags  -fsanitize=undefined
3022         add_ldflags -fsanitize=undefined
3023     ;;
3024     valgrind-massif)
3025         target_exec_default=${valgrind:-"valgrind"}
3026         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"
3027     ;;
3028     valgrind-memcheck)
3029         target_exec_default=${valgrind:-"valgrind"}
3030         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3031     ;;
3032     msvc)
3033         # Check whether the current MSVC version needs the C99 converter.
3034         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3035         # support enough of C99 to build ffmpeg. Default to the new
3036         # behaviour if the regexp was unable to match anything, since this
3037         # successfully parses the version number of existing supported
3038         # versions that require the converter (MSVC 2010 and 2012).
3039         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3040         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3041             cc_default="cl"
3042         else
3043             cc_default="c99wrap cl"
3044         fi
3045         ld_default="link"
3046         nm_default="dumpbin -symbols"
3047         ar_default="lib"
3048         target_os_default="win32"
3049         # Use a relative path for TMPDIR. This makes sure all the
3050         # ffconf temp files are written with a relative path, avoiding
3051         # issues with msys/win32 path conversion for MSVC parameters
3052         # such as -Fo<file> or -out:<file>.
3053         TMPDIR=.
3054     ;;
3055     icl)
3056         cc_default="icl"
3057         ld_default="xilink"
3058         nm_default="dumpbin -symbols"
3059         ar_default="xilib"
3060         target_os_default="win32"
3061         TMPDIR=.
3062     ;;
3063     gcov)
3064         add_cflags  -fprofile-arcs -ftest-coverage
3065         add_ldflags -fprofile-arcs -ftest-coverage
3066     ;;
3067     hardened)
3068         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3069         add_cflags   -fno-strict-overflow -fstack-protector-all
3070         add_ldflags  -Wl,-z,relro -Wl,-z,now
3071     ;;
3072     ?*)
3073         die "Unknown toolchain $toolchain"
3074     ;;
3075 esac
3076
3077 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3078     target_exec target_os yasmexe
3079 enabled cross_compile || host_cc_default=$cc
3080 set_default host_cc
3081
3082 pkg_config_fail_message=""
3083 if ! $pkg_config --version >/dev/null 2>&1; then
3084     warn "$pkg_config not found, library detection may fail."
3085     pkg_config=false
3086 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3087     pkg_config_fail_message="
3088 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3089 fi
3090
3091 if test $doxygen != $doxygen_default && \
3092   ! $doxygen --version >/dev/null 2>&1; then
3093     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3094 fi
3095
3096 exesuf() {
3097     case $1 in
3098         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3099     esac
3100 }
3101
3102 EXESUF=$(exesuf $target_os)
3103 HOSTEXESUF=$(exesuf $host_os)
3104
3105 # set temporary file name
3106 : ${TMPDIR:=$TEMPDIR}
3107 : ${TMPDIR:=$TMP}
3108 : ${TMPDIR:=/tmp}
3109
3110 if [ -n "$tempprefix" ] ; then
3111     mktemp(){
3112         echo $tempprefix.${HOSTNAME}.${UID}
3113     }
3114 elif ! check_cmd mktemp -u XXXXXX; then
3115     # simple replacement for missing mktemp
3116     # NOT SAFE FOR GENERAL USE
3117     mktemp(){
3118         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3119     }
3120 fi
3121
3122 tmpfile(){
3123     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3124         (set -C; exec > $tmp) 2>/dev/null ||
3125         die "Unable to create temporary file in $TMPDIR."
3126     append TMPFILES $tmp
3127     eval $1=$tmp
3128 }
3129
3130 trap 'rm -f -- $TMPFILES' EXIT
3131
3132 tmpfile TMPASM .asm
3133 tmpfile TMPC   .c
3134 tmpfile TMPCPP .cpp
3135 tmpfile TMPE   $EXESUF
3136 tmpfile TMPH   .h
3137 tmpfile TMPM   .m
3138 tmpfile TMPO   .o
3139 tmpfile TMPS   .S
3140 tmpfile TMPSH  .sh
3141 tmpfile TMPV   .ver
3142
3143 unset -f mktemp
3144
3145 chmod +x $TMPE
3146
3147 # make sure we can execute files in $TMPDIR
3148 cat > $TMPSH 2>> $logfile <<EOF
3149 #! /bin/sh
3150 EOF
3151 chmod +x $TMPSH >> $logfile 2>&1
3152 if ! $TMPSH >> $logfile 2>&1; then
3153     cat <<EOF
3154 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3155 variable to another directory and make sure that it is not mounted noexec.
3156 EOF
3157     die "Sanity test failed."
3158 fi
3159
3160 armasm_flags(){
3161     for flag; do
3162         case $flag in
3163             # Filter out MSVC cl.exe options from cflags that shouldn't
3164             # be passed to gas-preprocessor
3165             -M[TD]*)                                            ;;
3166             *)                  echo $flag                      ;;
3167         esac
3168    done
3169 }
3170
3171 ccc_flags(){
3172     for flag; do
3173         case $flag in
3174             -std=c99)           echo -c99                       ;;
3175             -mcpu=*)            echo -arch ${flag#*=}           ;;
3176             -mieee)             echo -ieee                      ;;
3177             -O*|-fast)          echo $flag                      ;;
3178             -fno-math-errno)    echo -assume nomath_errno       ;;
3179             -g)                 echo -g3                        ;;
3180             -Wall)              echo -msg_enable level2         ;;
3181             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3182             -Wl,*)              echo $flag                      ;;
3183             -f*|-W*)                                            ;;
3184             *)                  echo $flag                      ;;
3185         esac
3186    done
3187 }
3188
3189 cparser_flags(){
3190     for flag; do
3191         case $flag in
3192             -Wno-switch)             echo -Wno-switch-enum ;;
3193             -Wno-format-zero-length) ;;
3194             -Wdisabled-optimization) ;;
3195             -Wno-pointer-sign)       echo -Wno-other ;;
3196             *)                       echo $flag ;;
3197         esac
3198     done
3199 }
3200
3201 msvc_common_flags(){
3202     for flag; do
3203         case $flag in
3204             # In addition to specifying certain flags under the compiler
3205             # specific filters, they must be specified here as well or else the
3206             # generic catch all at the bottom will print the original flag.
3207             -Wall)                ;;
3208             -std=c99)             ;;
3209             # Common flags
3210             -fomit-frame-pointer) ;;
3211             -g)                   echo -Z7 ;;
3212             -fno-math-errno)      ;;
3213             -fno-common)          ;;
3214             -fno-signed-zeros)    ;;
3215             -fPIC)                ;;
3216             -mthumb)              ;;
3217             -march=*)             ;;
3218             -lz)                  echo zlib.lib ;;
3219             -lavifil32)           echo vfw32.lib ;;
3220             -lavicap32)           echo vfw32.lib user32.lib ;;
3221             -l*)                  echo ${flag#-l}.lib ;;
3222             *)                    echo $flag ;;
3223         esac
3224     done
3225 }
3226
3227 msvc_flags(){
3228     msvc_common_flags "$@"
3229     for flag; do
3230         case $flag in
3231             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3232                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3233                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3234                                        -wd4554 \
3235                                        -wd4273 -wd4701 ;;
3236         esac
3237     done
3238 }
3239
3240 icl_flags(){
3241     msvc_common_flags "$@"
3242     for flag; do
3243         case $flag in
3244             # Despite what Intel's documentation says -Wall, which is supported
3245             # on Windows, does enable remarks so disable them here.
3246             -Wall)                echo $flag -Qdiag-disable:remark ;;
3247             -std=c99)             echo -Qstd=c99 ;;
3248             -flto)                echo -ipo ;;
3249         esac
3250     done
3251 }
3252
3253 icc_flags(){
3254     for flag; do
3255         case $flag in
3256             -flto)                echo -ipo ;;
3257             *)                    echo $flag ;;
3258         esac
3259     done
3260 }
3261
3262 pgi_flags(){
3263     for flag; do
3264         case $flag in
3265             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3266             -fomit-frame-pointer) echo -Mnoframe ;;
3267             -g)                   echo -gopt ;;
3268             *)                    echo $flag ;;
3269         esac
3270     done
3271 }
3272
3273 suncc_flags(){
3274     for flag; do
3275         case $flag in
3276             -march=*|-mcpu=*)
3277                 case "${flag#*=}" in
3278                     native)                   echo -xtarget=native       ;;
3279                     v9|niagara)               echo -xarch=sparc          ;;
3280                     ultrasparc)               echo -xarch=sparcvis       ;;
3281                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3282                     i586|pentium)             echo -xchip=pentium        ;;
3283                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3284                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3285                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3286                     pentium4*)          echo -xtarget=pentium4           ;;
3287                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3288                     *-sse3)             echo -xarch=sse3                 ;;
3289                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3290                     bonnell)                   echo -xarch=ssse3         ;;
3291                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3292                     westmere)                  echo -xtarget=westmere    ;;
3293                     silvermont)                echo -xarch=sse4_2        ;;
3294                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3295                     core-avx*|ivybridge|haswell|broadwell)
3296                                                echo -xarch=avx           ;;
3297                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3298                     btver1)                    echo -xarch=amdsse4a      ;;
3299                     btver2|bdver*)             echo -xarch=avx           ;;
3300                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3301                     k8|opteron|athlon64|athlon-fx)
3302                                                echo -xarch=sse2a         ;;
3303                     athlon*)                   echo -xarch=pentium_proa  ;;
3304                 esac
3305                 ;;
3306             -std=c99)             echo -xc99              ;;
3307             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3308             -fPIC)                echo -KPIC -xcode=pic32 ;;
3309             -W*,*)                echo $flag              ;;
3310             -f*-*|-W*|-mimpure-text)                      ;;
3311             -shared)              echo -G                 ;;
3312             *)                    echo $flag              ;;
3313         esac
3314     done
3315 }
3316
3317 tms470_flags(){
3318     for flag; do
3319         case $flag in
3320             -march=*|-mcpu=*)
3321                 case "${flag#*=}" in
3322                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3323                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3324                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3325                     armv6*|arm11*)          echo -mv=6   ;;
3326                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3327                                             echo -mv=5e  ;;
3328                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3329                 esac
3330                 ;;
3331             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3332             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3333             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3334             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3335             -msoft-float)   echo --float_support=vfplib       ;;
3336             -O[0-3]|-mf=*)  echo $flag                        ;;
3337             -g)             echo -g -mn                       ;;
3338             -pds=*)         echo $flag                        ;;
3339             -D*|-I*)        echo $flag                        ;;
3340             --gcc|--abi=*)  echo $flag                        ;;
3341             -me)            echo $flag                        ;;
3342         esac
3343     done
3344 }
3345
3346 probe_cc(){
3347     pfx=$1
3348     _cc=$2
3349
3350     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3351     unset _ld_o _ldflags _ld_lib _ld_path
3352     unset _depflags _DEPCMD _DEPFLAGS
3353     _flags_filter=echo
3354
3355     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3356         true # no-op to avoid reading stdin in following checks
3357     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3358         _type=llvm_gcc
3359         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3360         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3361         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3362         _cflags_speed='-O3'
3363         _cflags_size='-Os'
3364     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3365         _type=gcc
3366         gcc_version=$($_cc --version | head -n1)
3367         gcc_basever=$($_cc -dumpversion)
3368         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3369         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3370         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3371         if ! $_cc -dumpversion | grep -q '^2\.'; then
3372             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3373         fi
3374         _cflags_speed='-O3'
3375         _cflags_size='-Os'
3376     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3377         _type=icc
3378         _ident=$($_cc --version | head -n1)
3379         _depflags='-MMD'
3380         _cflags_speed='-O3'
3381         _cflags_size='-Os'
3382         _cflags_noopt='-O1'
3383         _flags_filter=icc_flags
3384     elif $_cc -v 2>&1 | grep -q xlc; then
3385         _type=xlc
3386         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3387         _cflags_speed='-O5'
3388         _cflags_size='-O5 -qcompact'
3389     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3390         _type=ccc
3391         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3392         _DEPFLAGS='-M'
3393         _cflags_speed='-fast'
3394         _cflags_size='-O1'
3395         _flags_filter=ccc_flags
3396     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3397         test -d "$sysroot" || die "No valid sysroot specified."
3398         _type=armcc
3399         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3400         armcc_conf="$PWD/armcc.conf"
3401         $_cc --arm_linux_configure                 \
3402              --arm_linux_config_file="$armcc_conf" \
3403              --configure_sysroot="$sysroot"        \
3404              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3405              die "Error creating armcc configuration file."
3406         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3407         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3408         as_default="${cross_prefix}gcc"
3409         _depflags='-MMD'
3410         _cflags_speed='-O3'
3411         _cflags_size='-Os'
3412     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3413         _type=tms470
3414         _ident=$($_cc -version | head -n1 | tr -s ' ')
3415         _flags='--gcc --abi=eabi -me'
3416         _cc_e='-ppl -fe=$@'
3417         _cc_o='-fe=$@'
3418         _depflags='-ppa -ppd=$(@:.o=.d)'
3419         _cflags_speed='-O3 -mf=5'
3420         _cflags_size='-O3 -mf=2'
3421         _flags_filter=tms470_flags
3422     elif $_cc -v 2>&1 | grep -q clang; then
3423         _type=clang
3424         _ident=$($_cc --version | head -n1)
3425         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3426         _cflags_speed='-O3'
3427         _cflags_size='-Os'
3428     elif $_cc -V 2>&1 | grep -q Sun; then
3429         _type=suncc
3430         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3431         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3432         _DEPFLAGS='-xM1 -xc99'
3433         _ldflags='-std=c99'
3434         _cflags_speed='-O5'
3435         _cflags_size='-O5 -xspace'
3436         _flags_filter=suncc_flags
3437     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3438         _type=pathscale
3439         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3440         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3441         _cflags_speed='-O2'
3442         _cflags_size='-Os'
3443         _flags_filter='filter_out -Wdisabled-optimization'
3444     elif $_cc -v 2>&1 | grep -q Open64; then
3445         _type=open64
3446         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3447         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3448         _cflags_speed='-O2'
3449         _cflags_size='-Os'
3450         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3451     elif $_cc -V 2>&1 | grep -q Portland; then
3452         _type=pgi
3453         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3454         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3455         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3456         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3457         _cflags_noopt="-O"
3458         _flags_filter=pgi_flags
3459     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3460         _type=armasm
3461         _ident=$($_cc | head -n1)
3462         # 4509: "This form of conditional instruction is deprecated"
3463         _flags="-nologo -ignore 4509"
3464         _flags_filter=armasm_flags
3465     elif $_cc 2>&1 | grep -q Intel; then
3466         _type=icl
3467         _ident=$($cc 2>&1 | head -n1)
3468         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3469         # Not only is O3 broken on 13.x+ but it is slower on all previous
3470         # versions (tested) as well.
3471         _cflags_speed="-O2"
3472         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3473         if $_cc 2>&1 | grep -q Linker; then
3474             _ld_o='-out:$@'
3475         else
3476             _ld_o='-Fe$@'
3477         fi
3478         _cc_o='-Fo$@'
3479         _cc_e='-P'
3480         _flags_filter=icl_flags
3481         _ld_lib='lib%.a'
3482         _ld_path='-libpath:'
3483         # -Qdiag-error to make icl error when seeing certain unknown arguments
3484         _flags='-nologo -Qdiag-error:4044,10157'
3485         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3486         # with MSVC which enables it by default.
3487         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3488         if [ $pfx = hostcc ]; then
3489             append _cflags -Dsnprintf=_snprintf
3490         fi
3491         disable stripping
3492     elif $_cc 2>&1 | grep -q Microsoft; then
3493         _type=msvc
3494         _ident=$($cc 2>&1 | head -n1)
3495         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3496         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3497         _cflags_speed="-O2"
3498         _cflags_size="-O1"
3499         if $_cc 2>&1 | grep -q Linker; then
3500             _ld_o='-out:$@'
3501         else
3502             _ld_o='-Fe$@'
3503         fi
3504         _cc_o='-Fo$@'
3505         _cc_e='-P -Fi$@'
3506         _flags_filter=msvc_flags
3507         _ld_lib='lib%.a'
3508         _ld_path='-libpath:'
3509         _flags='-nologo'
3510         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3511         if [ $pfx = hostcc ]; then
3512             append _cflags -Dsnprintf=_snprintf
3513         fi
3514         disable stripping
3515     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3516         _type=cparser
3517         _ident=$($_cc --version | head -n1)
3518         _depflags='-MMD'
3519         _cflags_speed='-O4'
3520         _cflags_size='-O2'
3521         _flags_filter=cparser_flags
3522     fi
3523
3524     eval ${pfx}_type=\$_type
3525     eval ${pfx}_ident=\$_ident
3526 }
3527
3528 set_ccvars(){
3529     eval ${1}_C=\${_cc_c-\${${1}_C}}
3530     eval ${1}_E=\${_cc_e-\${${1}_E}}
3531     eval ${1}_O=\${_cc_o-\${${1}_O}}
3532
3533     if [ -n "$_depflags" ]; then
3534         eval ${1}_DEPFLAGS=\$_depflags
3535     else
3536         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3537         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3538         eval DEP${1}FLAGS=\$_flags
3539     fi
3540 }
3541
3542 probe_cc cc "$cc"
3543 cflags_filter=$_flags_filter
3544 cflags_speed=$_cflags_speed
3545 cflags_size=$_cflags_size
3546 cflags_noopt=$_cflags_noopt
3547 add_cflags $_flags $_cflags
3548 cc_ldflags=$_ldflags
3549 set_ccvars CC
3550
3551 probe_cc hostcc "$host_cc"
3552 host_cflags_filter=$_flags_filter
3553 add_host_cflags  $_flags $_cflags
3554 set_ccvars HOSTCC
3555
3556 test -n "$cc_type" && enable $cc_type ||
3557     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3558
3559 : ${as_default:=$cc}
3560 : ${dep_cc_default:=$cc}
3561 : ${ld_default:=$cc}
3562 : ${host_ld_default:=$host_cc}
3563 set_default ar as dep_cc ld host_ld windres
3564
3565 probe_cc as "$as"
3566 asflags_filter=$_flags_filter
3567 add_asflags $_flags $_cflags
3568 set_ccvars AS
3569
3570 probe_cc ld "$ld"
3571 ldflags_filter=$_flags_filter
3572 add_ldflags $_flags $_ldflags
3573 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3574 LD_O=${_ld_o-$LD_O}
3575 LD_LIB=${_ld_lib-$LD_LIB}
3576 LD_PATH=${_ld_path-$LD_PATH}
3577
3578 probe_cc hostld "$host_ld"
3579 host_ldflags_filter=$_flags_filter
3580 add_host_ldflags $_flags $_ldflags
3581 HOSTLD_O=${_ld_o-$HOSTLD_O}
3582
3583 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3584     probe_cc depcc "$dep_cc"
3585     CCDEP=${_DEPCMD:-$DEPCMD}
3586     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3587     DEPCCFLAGS=$_flags
3588 fi
3589
3590 if $ar 2>&1 | grep -q Microsoft; then
3591     arflags="-nologo"
3592     ar_o='-out:$@'
3593 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3594     arflags="rq"
3595     ar_o='$@'
3596 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3597     arflags='-Xany -r -c'
3598     ar_o='$@'
3599 else
3600     arflags="rc"
3601     ar_o='$@'
3602 fi
3603
3604 add_cflags $extra_cflags
3605 add_cxxflags $extra_cxxflags
3606 add_asflags $extra_cflags
3607
3608 if test -n "$sysroot"; then
3609     case "$cc_type" in
3610         gcc|llvm_gcc|clang)
3611             add_cppflags --sysroot="$sysroot"
3612             add_ldflags --sysroot="$sysroot"
3613 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3614             add_cppflags -isysroot "$sysroot"
3615             add_ldflags -isysroot "$sysroot"
3616         ;;
3617         tms470)
3618             add_cppflags -I"$sysinclude"
3619             add_ldflags  --sysroot="$sysroot"
3620         ;;
3621     esac
3622 fi
3623
3624 if test "$cpu" = host; then
3625     enabled cross_compile &&
3626         die "--cpu=host makes no sense when cross-compiling."
3627
3628     case "$cc_type" in
3629         gcc|llvm_gcc)
3630             check_native(){
3631                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3632                 sed -n "/cc1.*$1=/{
3633                             s/.*$1=\\([^ ]*\\).*/\\1/
3634                             p
3635                             q
3636                         }" $TMPE
3637             }
3638             cpu=$(check_native -march || check_native -mcpu)
3639         ;;
3640     esac
3641
3642     test "${cpu:-host}" = host &&
3643         die "--cpu=host not supported with compiler $cc"
3644 fi
3645
3646 # Deal with common $arch aliases
3647 case "$arch" in
3648     aarch64|arm64)
3649         arch="aarch64"
3650     ;;
3651     arm*|iPad*|iPhone*)
3652         arch="arm"
3653     ;;
3654     mips*|IP*)
3655         arch="mips"
3656     ;;
3657     parisc*|hppa*)
3658         arch="parisc"
3659     ;;
3660     "Power Macintosh"|ppc*|powerpc*)
3661         arch="ppc"
3662     ;;
3663     s390|s390x)
3664         arch="s390"
3665     ;;
3666     sh4|sh)
3667         arch="sh4"
3668     ;;
3669     sun4u|sparc*)
3670         arch="sparc"
3671     ;;
3672     tilegx|tile-gx)
3673         arch="tilegx"
3674     ;;
3675     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3676         arch="x86"
3677     ;;
3678 esac
3679
3680 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3681 enable $arch
3682
3683 # Add processor-specific flags
3684 if enabled aarch64; then
3685
3686     case $cpu in
3687         armv*)
3688             cpuflags="-march=$cpu"
3689         ;;
3690         *)
3691             cpuflags="-mcpu=$cpu"
3692         ;;
3693     esac
3694
3695 elif enabled alpha; then
3696
3697     cpuflags="-mcpu=$cpu"
3698
3699 elif enabled arm; then
3700
3701     check_arm_arch() {
3702         check_cpp_condition stddef.h \
3703             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3704             $cpuflags
3705     }
3706
3707     probe_arm_arch() {
3708         if   check_arm_arch 4;        then echo armv4;
3709         elif check_arm_arch 4T;       then echo armv4t;
3710         elif check_arm_arch 5;        then echo armv5;
3711         elif check_arm_arch 5E;       then echo armv5e;
3712         elif check_arm_arch 5T;       then echo armv5t;
3713         elif check_arm_arch 5TE;      then echo armv5te;
3714         elif check_arm_arch 5TEJ;     then echo armv5te;
3715         elif check_arm_arch 6;        then echo armv6;
3716         elif check_arm_arch 6J;       then echo armv6j;
3717         elif check_arm_arch 6K;       then echo armv6k;
3718         elif check_arm_arch 6Z;       then echo armv6z;
3719         elif check_arm_arch 6ZK;      then echo armv6zk;
3720         elif check_arm_arch 6T2;      then echo armv6t2;
3721         elif check_arm_arch 7;        then echo armv7;
3722         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3723         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3724         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3725         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3726         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3727         fi
3728     }
3729
3730     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3731
3732     case $cpu in
3733         armv*)
3734             cpuflags="-march=$cpu"
3735             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3736         ;;
3737         *)
3738             cpuflags="-mcpu=$cpu"
3739             case $cpu in
3740                 cortex-a*)                               subarch=armv7a  ;;
3741                 cortex-r*)                               subarch=armv7r  ;;
3742                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3743                 arm11*)                                  subarch=armv6   ;;
3744                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3745                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3746                 *)                             subarch=$(probe_arm_arch) ;;
3747             esac
3748         ;;
3749     esac
3750
3751     case "$subarch" in
3752         armv5t*)    enable fast_clz                ;;
3753         armv[6-8]*)
3754             enable fast_clz
3755             disabled fast_unaligned || enable fast_unaligned
3756             ;;
3757     esac
3758
3759 elif enabled avr32; then
3760
3761     case $cpu in
3762         ap7[02]0[0-2])
3763             subarch="avr32_ap"
3764             cpuflags="-mpart=$cpu"
3765         ;;
3766         ap)
3767             subarch="avr32_ap"
3768             cpuflags="-march=$cpu"
3769         ;;
3770         uc3[ab]*)
3771             subarch="avr32_uc"
3772             cpuflags="-mcpu=$cpu"
3773         ;;
3774         uc)
3775             subarch="avr32_uc"
3776             cpuflags="-march=$cpu"
3777         ;;
3778     esac
3779
3780 elif enabled bfin; then
3781
3782     cpuflags="-mcpu=$cpu"
3783
3784 elif enabled mips; then
3785
3786     cpuflags="-march=$cpu"
3787
3788     case $cpu in
3789         24kc)
3790             disable mipsfpu
3791             disable mipsdspr1
3792             disable mipsdspr2
3793         ;;
3794         24kf*)
3795             disable mipsdspr1
3796             disable mipsdspr2
3797         ;;
3798         24kec|34kc|1004kc)
3799             disable mipsfpu
3800             disable mipsdspr2
3801         ;;
3802         24kef*|34kf*|1004kf*)
3803             disable mipsdspr2
3804         ;;
3805         74kc)
3806             disable mipsfpu
3807         ;;
3808     esac
3809
3810 elif enabled ppc; then
3811
3812     disable ldbrx
3813     disable vsx
3814
3815     case $(tolower $cpu) in
3816         601|ppc601|powerpc601)
3817             cpuflags="-mcpu=601"
3818             disable altivec
3819         ;;
3820         603*|ppc603*|powerpc603*)
3821             cpuflags="-mcpu=603"
3822             disable altivec
3823         ;;
3824         604*|ppc604*|powerpc604*)
3825             cpuflags="-mcpu=604"
3826             disable altivec
3827         ;;
3828         g3|75*|ppc75*|powerpc75*)
3829             cpuflags="-mcpu=750"
3830             disable altivec
3831         ;;
3832         g4|745*|ppc745*|powerpc745*)
3833             cpuflags="-mcpu=7450"
3834         ;;
3835         74*|ppc74*|powerpc74*)
3836             cpuflags="-mcpu=7400"
3837         ;;
3838         g5|970|ppc970|powerpc970)
3839             cpuflags="-mcpu=970"
3840         ;;
3841         power[3-8]*)
3842             cpuflags="-mcpu=$cpu"
3843         ;;
3844         cell)
3845             cpuflags="-mcpu=cell"
3846             enable ldbrx
3847         ;;
3848         e500mc)
3849             cpuflags="-mcpu=e500mc"
3850             disable altivec
3851         ;;
3852         e500v2)
3853             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3854             disable altivec
3855             disable dcbzl
3856         ;;
3857         e500)
3858             cpuflags="-mcpu=8540 -mhard-float"
3859             disable altivec
3860             disable dcbzl
3861         ;;
3862     esac
3863
3864 elif enabled sparc; then
3865
3866     case $cpu in
3867         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3868             cpuflags="-mcpu=$cpu"
3869         ;;
3870         ultrasparc*|niagara[234])
3871             cpuflags="-mcpu=$cpu"
3872         ;;
3873     esac
3874
3875 elif enabled x86; then
3876
3877     case $cpu in
3878         i[345]86|pentium)
3879             cpuflags="-march=$cpu"
3880             disable i686
3881             disable mmx
3882         ;;
3883         # targets that do NOT support nopl and conditional mov (cmov)
3884         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3885             cpuflags="-march=$cpu"
3886             disable i686
3887         ;;
3888         # targets that do support nopl and conditional mov (cmov)
3889         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3890         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3891             cpuflags="-march=$cpu"
3892             enable i686
3893             enable fast_cmov
3894         ;;
3895         # targets that do support conditional mov but on which it's slow
3896         pentium4|pentium4m|prescott|nocona)
3897             cpuflags="-march=$cpu"
3898             enable i686
3899             disable fast_cmov
3900         ;;
3901     esac
3902
3903 fi
3904
3905 if [ "$cpu" != generic ]; then
3906     add_cflags  $cpuflags
3907     add_asflags $cpuflags
3908 fi
3909
3910 # compiler sanity check
3911 check_exec <<EOF
3912 int main(void){ return 0; }
3913 EOF
3914 if test "$?" != 0; then
3915     echo "$cc is unable to create an executable file."
3916     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3917         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3918         echo "Only do this if you know what cross compiling means."
3919     fi
3920     die "C compiler test failed."
3921 fi
3922
3923 add_cppflags -D_ISOC99_SOURCE
3924 add_cxxflags -D__STDC_CONSTANT_MACROS
3925 check_cflags -std=c99
3926 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3927 #include <stdlib.h>
3928 EOF
3929 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3930 #include <stdlib.h>
3931 EOF
3932
3933 add_host_cppflags -D_ISOC99_SOURCE
3934 check_host_cflags -std=c99
3935 check_host_cflags -Wall
3936 check_host_cflags -O3
3937
3938 check_64bit(){
3939     arch32=$1
3940     arch64=$2
3941     expr=$3
3942     check_code cc "" "int test[2*($expr) - 1]" &&
3943         subarch=$arch64 || subarch=$arch32
3944 }
3945
3946 case "$arch" in
3947     aarch64|alpha|ia64)
3948         spic=$shared
3949     ;;
3950     mips)
3951         check_64bit mips mips64 '_MIPS_SIM > 1'
3952         spic=$shared
3953     ;;
3954     parisc)
3955         check_64bit parisc parisc64 'sizeof(void *) > 4'
3956         spic=$shared
3957     ;;
3958     ppc)
3959         check_64bit ppc ppc64 'sizeof(void *) > 4'
3960         spic=$shared
3961     ;;
3962     s390)
3963         check_64bit s390 s390x 'sizeof(void *) > 4'
3964         spic=$shared
3965     ;;
3966     sparc)
3967         check_64bit sparc sparc64 'sizeof(void *) > 4'
3968         spic=$shared
3969     ;;
3970     x86)
3971         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3972         # Treat x32 as x64 for now. Note it also needs spic=$shared
3973         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
3974             subarch=x86_64
3975         if test "$subarch" = "x86_64"; then
3976             spic=$shared
3977         fi
3978     ;;
3979     ppc)
3980         check_cc <<EOF && subarch="ppc64"
3981         int test[(int)sizeof(char*) - 7];
3982 EOF
3983     ;;
3984 esac
3985
3986 enable $subarch
3987 enabled spic && enable_weak pic
3988
3989 # OS specific
3990 case $target_os in
3991     aix)
3992         SHFLAGS=-shared
3993         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3994         enabled shared && add_ldflags -Wl,-brtl
3995         ;;
3996     android)
3997         disable symver
3998         enable section_data_rel_ro
3999         SLIB_INSTALL_NAME='$(SLIBNAME)'
4000         SLIB_INSTALL_LINKS=
4001         # soname not set on purpose
4002         SHFLAGS=-shared
4003         ;;
4004     haiku)
4005         prefix_default="/boot/common"
4006         network_extralibs="-lnetwork"
4007         host_libs=
4008         ;;
4009     sunos)
4010         SHFLAGS='-shared -Wl,-h,$$(@F)'
4011         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4012         network_extralibs="-lsocket -lnsl"
4013         # When using suncc to build, the Solaris linker will mark
4014         # an executable with each instruction set encountered by
4015         # the Solaris assembler.  As our libraries contain their own
4016         # guards for processor-specific code, instead suppress
4017         # generation of the HWCAPS ELF section on Solaris x86 only.
4018         enabled_all suncc x86 &&
4019             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4020             add_ldflags -Wl,-M,mapfile
4021         nm_default='nm -P -g'
4022         ;;
4023     netbsd)
4024         disable symver
4025         oss_indev_extralibs="-lossaudio"
4026         oss_outdev_extralibs="-lossaudio"
4027         enabled gcc || check_ldflags -Wl,-zmuldefs
4028         ;;
4029     openbsd|bitrig)
4030         disable symver
4031         SHFLAGS='-shared'
4032         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4033         SLIB_INSTALL_LINKS=
4034         oss_indev_extralibs="-lossaudio"
4035         oss_outdev_extralibs="-lossaudio"
4036         ;;
4037     dragonfly)
4038         disable symver
4039         ;;
4040     freebsd)
4041         ;;
4042     bsd/os)
4043         add_extralibs -lpoll -lgnugetopt
4044         strip="strip -d"
4045         ;;
4046     darwin)
4047         enabled ppc && add_asflags -force_cpusubtype_ALL
4048         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4049         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4050         strip="${strip} -x"
4051         add_ldflags -Wl,-dynamic,-search_paths_first
4052         SLIBSUF=".dylib"
4053         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4054         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4055         objformat="macho"
4056         enabled x86_64 && objformat="macho64"
4057         enabled_any pic shared ||
4058             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4059         ;;
4060     mingw32*)
4061         if test $target_os = "mingw32ce"; then
4062             disable network
4063         else
4064             target_os=mingw32
4065         fi
4066         LIBTARGET=i386
4067         if enabled x86_64; then
4068             LIBTARGET="i386:x86-64"
4069         elif enabled arm; then
4070             LIBTARGET=arm-wince
4071         fi
4072         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4073         check_ldflags -Wl,--nxcompat
4074         check_ldflags -Wl,--dynamicbase
4075         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4076         shlibdir_default="$bindir_default"
4077         SLIBPREF=""
4078         SLIBSUF=".dll"
4079         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4080         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4081         dlltool="${cross_prefix}dlltool"
4082         if check_cmd lib.exe -list; then
4083             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4084             if enabled x86_64; then
4085                 LIBTARGET=x64
4086             fi
4087         elif check_cmd $dlltool --version; then
4088             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4089         fi
4090         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4091         SLIB_INSTALL_LINKS=
4092         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4093         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4094         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4095         objformat="win32"
4096         ranlib=:
4097         enable dos_paths
4098         ;;
4099     win32|win64)
4100         disable symver
4101         if enabled shared; then
4102             # Link to the import library instead of the normal static library
4103             # for shared libs.
4104             LD_LIB='%.lib'
4105             # Cannot build both shared and static libs with MSVC or icl.
4106             disable static
4107         fi
4108         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4109         shlibdir_default="$bindir_default"
4110         SLIBPREF=""
4111         SLIBSUF=".dll"
4112         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4113         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4114         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4115         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4116         SLIB_INSTALL_LINKS=
4117         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4118         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4119         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4120         objformat="win32"
4121         ranlib=:
4122         enable dos_paths
4123         ;;
4124     cygwin*)
4125         target_os=cygwin
4126         shlibdir_default="$bindir_default"
4127         SLIBPREF="cyg"
4128         SLIBSUF=".dll"
4129         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4130         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4131         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4132         SLIB_INSTALL_LINKS=
4133         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4134         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4135         objformat="win32"
4136         enable dos_paths
4137         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4138         ;;
4139     *-dos|freedos|opendos)
4140         network_extralibs="-lsocket"
4141         objformat="coff"
4142         enable dos_paths
4143         add_cppflags -U__STRICT_ANSI__
4144         ;;
4145     linux)
4146         enable dv1394
4147         enable section_data_rel_ro
4148         ;;
4149     irix*)
4150         target_os=irix
4151         ranlib="echo ignoring ranlib"
4152         ;;
4153     os/2*)
4154         strip="lxlite -CS"
4155         ln_s="cp -f"
4156         objformat="aout"
4157         add_cppflags -D_GNU_SOURCE
4158         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4159         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4160         LIBSUF="_s.a"
4161         SLIBPREF=""
4162         SLIBSUF=".dll"
4163         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4164         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4165         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4166             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4167             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4168             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4169             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4170             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4171         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4172             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4173         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4174         enable dos_paths
4175         enable_weak os2threads
4176         ;;
4177     gnu/kfreebsd)
4178         add_cppflags -D_BSD_SOURCE
4179         ;;
4180     gnu)
4181         ;;
4182     qnx)
4183         add_cppflags -D_QNX_SOURCE
4184         network_extralibs="-lsocket"
4185         ;;
4186     symbian)
4187         SLIBSUF=".dll"
4188         enable dos_paths
4189         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4190         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4191         add_ldflags -Wl,--target1-abs,--no-undefined \
4192                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4193                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4194         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4195                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4196                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4197         ;;
4198     osf1)
4199         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4200         ;;
4201     minix)
4202         ;;
4203     plan9)
4204         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4205                      -D_REENTRANT_SOURCE        \
4206                      -D_RESEARCH_SOURCE         \
4207                      -DFD_SETSIZE=96            \
4208                      -DHAVE_SOCK_OPTS
4209         add_compat strtod.o strtod=avpriv_strtod
4210         network_extralibs='-lbsd'
4211         exeobjs=compat/plan9/main.o
4212         disable ffserver
4213         cp_f='cp'
4214         ;;
4215     none)
4216         ;;
4217     *)
4218         die "Unknown OS '$target_os'."
4219         ;;
4220 esac
4221
4222 # determine libc flavour
4223
4224 probe_libc(){
4225     pfx=$1
4226     pfx_no_=${pfx%_}
4227     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4228     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4229         eval ${pfx}libc_type=uclibc
4230         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4231     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4232         eval ${pfx}libc_type=glibc
4233         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4234     # MinGW headers can be installed on Cygwin, so check for newlib first.
4235     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4236         eval ${pfx}libc_type=newlib
4237         add_${pfx}cppflags -U__STRICT_ANSI__
4238     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4239     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4240         eval ${pfx}libc_type=mingw64
4241         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4242             add_compat msvcrt/snprintf.o
4243             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4244         fi
4245         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4246         eval test \$${pfx_no_}cc_type = "gcc" &&
4247             add_${pfx}cppflags -D__printf__=__gnu_printf__
4248     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4249          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4250         eval ${pfx}libc_type=mingw32
4251         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4252             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4253             die "ERROR: MinGW32 runtime version must be >= 3.15."
4254         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4255         eval test \$${pfx_no_}cc_type = "gcc" &&
4256             add_${pfx}cppflags -D__printf__=__gnu_printf__
4257     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4258         eval ${pfx}libc_type=msvcrt
4259         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4260         # 0x601 by default unless something else is set by the user.
4261         # This can easily lead to us detecting functions only present
4262         # in such new versions and producing binaries requiring windows 7.0.
4263         # Therefore explicitly set the default to XP unless the user has
4264         # set something else on the command line.
4265         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4266             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4267     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4268         eval ${pfx}libc_type=klibc
4269     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4270         eval ${pfx}libc_type=bionic
4271     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4272         eval ${pfx}libc_type=solaris
4273         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4274     fi
4275     check_${pfx}cc <<EOF
4276 #include <time.h>
4277 void *v = localtime_r;
4278 EOF
4279 test "$?" != 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
4280 #include <time.h>
4281 void *v = localtime_r;
4282 EOF
4283
4284 }
4285
4286 probe_libc
4287 test -n "$libc_type" && enable libc_$libc_type
4288 probe_libc host_
4289 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4290
4291 case $libc_type in
4292     bionic)
4293         add_compat strtod.o strtod=avpriv_strtod
4294         ;;
4295     msvcrt)
4296         add_compat strtod.o strtod=avpriv_strtod
4297         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4298                                      _snprintf=avpriv_snprintf  \
4299                                      vsnprintf=avpriv_vsnprintf
4300         ;;
4301 esac
4302
4303 # hacks for compiler/libc/os combinations
4304
4305 if enabled_all tms470 libc_glibc; then
4306     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4307     add_cppflags -D__USER_LABEL_PREFIX__=
4308     add_cppflags -D__builtin_memset=memset
4309     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4310     add_cflags   -pds=48    # incompatible redefinition of macro
4311 fi
4312
4313 if enabled_all ccc libc_glibc; then
4314     add_ldflags -Wl,-z,now  # calls to libots crash without this
4315 fi
4316
4317 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4318     add_cppflags '-I\$(SRC_PATH)/compat/float'
4319
4320 esc(){
4321     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4322 }
4323
4324 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4325
4326 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4327
4328 set_default $PATHS_LIST
4329 set_default nm
4330
4331 # we need to build at least one lib type
4332 if ! enabled_any static shared; then
4333     cat <<EOF
4334 At least one library type must be built.
4335 Specify --enable-static to build the static libraries or --enable-shared to
4336 build the shared libraries as well. To only build the shared libraries specify
4337 --disable-static in addition to --enable-shared.
4338 EOF
4339     exit 1;
4340 fi
4341
4342 die_license_disabled() {
4343     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4344 }
4345
4346 die_license_disabled_gpl() {
4347     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4348 }
4349
4350 die_license_disabled gpl frei0r
4351 die_license_disabled gpl libcdio
4352 die_license_disabled gpl libsmbclient
4353 die_license_disabled gpl libutvideo
4354 die_license_disabled gpl libvidstab
4355 die_license_disabled gpl libx264
4356 die_license_disabled gpl libx265
4357 die_license_disabled gpl libxavs
4358 die_license_disabled gpl libxvid
4359 die_license_disabled gpl libzvbi
4360 die_license_disabled gpl x11grab
4361
4362 die_license_disabled nonfree libaacplus
4363 die_license_disabled nonfree libfaac
4364 die_license_disabled nonfree nvenc
4365 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4366 enabled gpl && die_license_disabled_gpl nonfree openssl
4367
4368 die_license_disabled version3 libopencore_amrnb
4369 die_license_disabled version3 libopencore_amrwb
4370 die_license_disabled version3 libsmbclient
4371 die_license_disabled version3 libvo_aacenc
4372 die_license_disabled version3 libvo_amrwbenc
4373
4374 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4375
4376 disabled optimizations || check_cflags -fomit-frame-pointer
4377
4378 enable_weak_pic() {
4379     disabled pic && return
4380     enable pic
4381     add_cppflags -DPIC
4382     case "$target_os" in
4383     mingw*|cygwin*)
4384         ;;
4385     *)
4386         add_cflags -fPIC
4387         ;;
4388     esac
4389     add_asflags  -fPIC
4390 }
4391
4392 enabled pic && enable_weak_pic
4393
4394 check_cc <<EOF || die "Symbol mangling check failed."
4395 int ff_extern;
4396 EOF
4397 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4398 extern_prefix=${sym%%ff_extern*}
4399
4400 check_cc <<EOF && enable_weak inline_asm
4401 void foo(void) { __asm__ volatile ("" ::); }
4402 EOF
4403
4404 _restrict=
4405 for restrict_keyword in restrict __restrict__ __restrict; do
4406     check_cc <<EOF && _restrict=$restrict_keyword && break
4407 void foo(char * $restrict_keyword p);
4408 EOF
4409 done
4410
4411 check_cc <<EOF && enable pragma_deprecated
4412 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4413 EOF
4414
4415 check_cc <<EOF && enable attribute_packed
4416 struct { int x; } __attribute__((packed)) x;
4417 EOF
4418
4419 check_cc <<EOF && enable attribute_may_alias
4420 union { int x; } __attribute__((may_alias)) x;
4421 EOF
4422
4423 check_cc <<EOF || die "endian test failed"
4424 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4425 EOF
4426 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4427
4428 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4429     if ! enabled bigendian && enabled altivec ;then
4430         enable vsx
4431     fi
4432 fi
4433
4434 check_gas() {
4435     log "check_gas using '$as' as AS"
4436     # :vararg is used on aarch64, arm and ppc altivec
4437     check_as <<EOF || return 1
4438 .macro m n, y:vararg=0
4439 \n: .int \y
4440 .endm
4441 m x
4442 EOF
4443     # .altmacro is only used in arm asm
4444     ! enabled arm || check_as <<EOF || return 1
4445 .altmacro
4446 EOF
4447     enable gnu_as
4448     return 0
4449 }
4450
4451 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4452     nogas=:
4453     enabled_any arm aarch64 && nogas=die
4454     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4455     as_noop=-v
4456
4457     case $as_type in
4458         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4459         gcc)  gaspp_as_type=gas ;;
4460         *)    gaspp_as_type=$as_type ;;
4461     esac
4462
4463     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4464
4465     test "${as#*gas-preprocessor.pl}" != "$as" ||
4466     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4467         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4468
4469     if ! check_gas ; then
4470         as=${gas:=$as}
4471         check_gas || \
4472             $nogas "GNU assembler not found, install/update gas-preprocessor"
4473     fi
4474
4475     check_as <<EOF && enable as_func
4476 .func test
4477 .endfunc
4478 EOF
4479 fi
4480
4481 check_inline_asm inline_asm_labels '"1:\n"'
4482
4483 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4484
4485 if enabled aarch64; then
4486     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4487     # internal assembler in clang 3.3 does not support this instruction
4488     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4489     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4490
4491     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4492
4493 elif enabled alpha; then
4494
4495     check_cflags -mieee
4496
4497 elif enabled arm; then
4498
4499     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4500 float func(float a, float b){ return a+b; }
4501 EOF
4502
4503     enabled thumb && check_cflags -mthumb || check_cflags -marm
4504
4505     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4506         enable vfp_args
4507     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4508         case "${cross_prefix:-$cc}" in
4509             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4510             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4511 __asm__ (".eabi_attribute 28, 1");
4512 int main(void) { return 0; }
4513 EOF
4514         esac
4515         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4516     fi
4517
4518     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4519     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4520     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4521     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4522     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4523     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4524     enabled setend  && check_insn setend  'setend be'
4525
4526     [ $target_os = linux ] || [ $target_os = android ] ||
4527         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4528             $ARCH_EXT_LIST_ARM
4529
4530     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4531
4532     check_as <<EOF && enable as_dn_directive
4533 ra .dn d0.i16
4534 .unreq ra
4535 EOF
4536
4537     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4538
4539 elif enabled mips; then
4540
4541     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4542     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4543      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4544     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4545      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4546     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4547      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4548     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4549      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4550
4551 elif enabled parisc; then
4552
4553     if enabled gcc; then
4554         case $($cc -dumpversion) in
4555             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4556         esac
4557     fi
4558
4559 elif enabled ppc; then
4560
4561     enable local_aligned_8 local_aligned_16 local_aligned_32
4562
4563     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4564     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4565     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4566     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4567
4568     # AltiVec flags: The FSF version of GCC differs from the Apple version
4569     if enabled altivec; then
4570         check_cflags -maltivec -mabi=altivec &&
4571         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4572         check_cflags -faltivec
4573
4574         # check if our compiler supports Motorola AltiVec C API
4575         check_cc <<EOF || disable altivec
4576 $inc_altivec_h
4577 int main(void) {
4578     vector signed int v1 = (vector signed int) { 0 };
4579     vector signed int v2 = (vector signed int) { 1 };
4580     v1 = vec_add(v1, v2);
4581     return 0;
4582 }
4583 EOF
4584
4585         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4586     fi
4587
4588     if enabled vsx; then
4589         check_cflags -mvsx
4590     fi
4591 elif enabled x86; then
4592
4593     check_builtin rdtsc    intrin.h   "__rdtsc()"
4594     check_builtin mm_empty mmintrin.h "_mm_empty()"
4595
4596     enable local_aligned_8 local_aligned_16 local_aligned_32
4597
4598     # check whether EBP is available on x86
4599     # As 'i' is stored on the stack, this program will crash
4600     # if the base pointer is used to access it because the
4601     # base pointer is cleared in the inline assembly code.
4602     check_exec_crash <<EOF && enable ebp_available
4603 volatile int i=0;
4604 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4605 return i;
4606 EOF
4607
4608     # check whether EBX is available on x86
4609     check_inline_asm ebx_available '""::"b"(0)' &&
4610         check_inline_asm ebx_available '"":::"%ebx"'
4611
4612     # check whether xmm clobbers are supported
4613     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4614
4615     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4616         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4617
4618     # check whether binutils is new enough to compile SSSE3/MMXEXT
4619     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4620     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4621
4622     if ! disabled_any asm mmx yasm; then
4623         if check_cmd $yasmexe --version; then
4624             enabled x86_64 && yasm_extra="-m amd64"
4625             yasm_debug="-g dwarf2"
4626         elif check_cmd nasm -v; then
4627             yasmexe=nasm
4628             yasm_debug="-g -F dwarf"
4629             if enabled x86_64; then
4630                 case "$objformat" in
4631                     elf)   objformat=elf64 ;;
4632                     win32) objformat=win64 ;;
4633                 esac
4634             fi
4635         fi
4636
4637         YASMFLAGS="-f $objformat $yasm_extra"
4638         enabled pic               && append YASMFLAGS "-DPIC"
4639         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4640         case "$objformat" in
4641             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4642         esac
4643
4644         check_yasm "movbe ecx, [5]" && enable yasm ||
4645             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4646         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4647         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4648         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4649         check_yasm "CPU amdnop" || disable cpunop
4650     fi
4651
4652     case "$cpu" in
4653         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4654             disable fast_clz
4655         ;;
4656     esac
4657
4658 fi
4659
4660 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4661
4662 check_ldflags -Wl,--as-needed
4663 check_ldflags -Wl,-z,noexecstack
4664
4665 if check_func dlopen; then
4666     ldl=
4667 elif check_func dlopen -ldl; then
4668     ldl=-ldl
4669 fi
4670
4671 frei0r_filter_extralibs='$ldl'
4672 frei0r_src_filter_extralibs='$ldl'
4673 ladspa_filter_extralibs='$ldl'
4674 nvenc_encoder_extralibs='$ldl'
4675
4676 if ! disabled network; then
4677     check_func getaddrinfo $network_extralibs
4678     check_func getservbyport $network_extralibs
4679     check_func inet_aton $network_extralibs
4680
4681     check_type netdb.h "struct addrinfo"
4682     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4683     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4684     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4685     check_type poll.h "struct pollfd"
4686     check_type netinet/sctp.h "struct sctp_event_subscribe"
4687     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4688     check_type netinet/in.h "struct sockaddr_in6"
4689     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4690     check_type "sys/types.h sys/socket.h" socklen_t
4691
4692     # Prefer arpa/inet.h over winsock2
4693     if check_header arpa/inet.h ; then
4694         check_func closesocket
4695     elif check_header winsock2.h ; then
4696         check_func_headers winsock2.h closesocket -lws2 &&
4697             network_extralibs="-lws2" ||
4698         { check_func_headers winsock2.h closesocket -lws2_32 &&
4699             network_extralibs="-lws2_32"; } || disable winsock2_h network
4700         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4701
4702         check_type ws2tcpip.h socklen_t
4703         check_type ws2tcpip.h "struct addrinfo"
4704         check_type ws2tcpip.h "struct group_source_req"
4705         check_type ws2tcpip.h "struct ip_mreq_source"
4706         check_type ws2tcpip.h "struct ipv6_mreq"
4707         check_type winsock2.h "struct pollfd"
4708         check_struct winsock2.h "struct sockaddr" sa_len
4709         check_type ws2tcpip.h "struct sockaddr_in6"
4710         check_type ws2tcpip.h "struct sockaddr_storage"
4711     else
4712         disable network
4713     fi
4714 fi
4715
4716 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4717 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
4718 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4719 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4720 check_builtin sarestart signal.h "SA_RESTART"
4721 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4722
4723 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4724 check_func  ${malloc_prefix}memalign            && enable memalign
4725 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4726
4727 check_func  access
4728 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4729 check_func  fcntl
4730 check_func  fork
4731 check_func  gethrtime
4732 check_func  getopt
4733 check_func  getrusage
4734 check_func  gettimeofday
4735 check_func  gmtime_r
4736 check_func  isatty
4737 check_func  localtime_r
4738 check_func  mach_absolute_time
4739 check_func  mkstemp
4740 check_func  mmap
4741 check_func  mprotect
4742 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4743 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4744 check_func  sched_getaffinity
4745 check_func  setrlimit
4746 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4747 check_func  strerror_r
4748 check_func  sysconf
4749 check_func  sysctl
4750 check_func  usleep
4751
4752 check_func_headers conio.h kbhit
4753 check_func_headers io.h setmode
4754 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4755 check_func_headers stdlib.h getenv
4756
4757 check_func_headers windows.h CoTaskMemFree -lole32
4758 check_func_headers windows.h GetProcessAffinityMask
4759 check_func_headers windows.h GetProcessTimes
4760 check_func_headers windows.h GetSystemTimeAsFileTime
4761 check_func_headers windows.h MapViewOfFile
4762 check_func_headers windows.h PeekNamedPipe
4763 check_func_headers windows.h SetConsoleTextAttribute
4764 check_func_headers windows.h Sleep
4765 check_func_headers windows.h VirtualAlloc
4766 check_struct windows.h "CONDITION_VARIABLE" Ptr
4767 check_func_headers glob.h glob
4768 enabled xlib &&
4769     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4770
4771 check_header cl/cl.h
4772 check_header direct.h
4773 check_header dlfcn.h
4774 check_header dxva.h
4775 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4776 check_header io.h
4777 check_header libcrystalhd/libcrystalhd_if.h
4778 check_header mach/mach_time.h
4779 check_header malloc.h
4780 check_header net/udplite.h
4781 check_header poll.h
4782 check_header sys/mman.h
4783 check_header sys/param.h
4784 check_header sys/resource.h
4785 check_header sys/select.h
4786 check_header sys/time.h
4787 check_header sys/un.h
4788 check_header termios.h
4789 check_header unistd.h
4790 check_header vdpau/vdpau.h
4791 check_header vdpau/vdpau_x11.h
4792 check_header VideoDecodeAcceleration/VDADecoder.h
4793 check_header windows.h
4794 check_header X11/extensions/XvMClib.h
4795 check_header asm/types.h
4796
4797 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4798 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4799 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4800
4801 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4802
4803 if ! disabled w32threads && ! enabled pthreads; then
4804     check_func_headers "windows.h process.h" _beginthreadex &&
4805         enable w32threads || disable w32threads
4806 fi
4807
4808 # check for some common methods of building with pthread support
4809 # do this before the optional library checks as some of them require pthreads
4810 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4811     enable pthreads
4812     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4813         add_cflags -pthread
4814         add_extralibs -pthread
4815     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4816         add_cflags -pthreads
4817         add_extralibs -pthreads
4818     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4819         add_cflags -ldl -pthread
4820         add_extralibs -ldl -pthread
4821     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4822         add_extralibs -lpthreadGC2
4823     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4824         :
4825     elif ! check_func pthread_join && ! check_func pthread_create; then
4826         disable pthreads
4827     fi
4828     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4829 fi
4830
4831
4832 if enabled pthreads; then
4833   check_func pthread_cancel
4834 fi
4835
4836 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4837 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4838 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
4839
4840 check_lib math.h sin -lm && LIBM="-lm"
4841 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4842
4843 atan2f_args=2
4844 ldexpf_args=2
4845 powf_args=2
4846
4847 for func in $MATH_FUNCS; do
4848     eval check_mathfunc $func \${${func}_args:-1}
4849 done
4850
4851 # these are off by default, so fail if requested and not available
4852 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4853 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4854                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4855                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4856 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4857 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4858 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4859 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4860 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4861 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4862 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4863 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4864 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4865 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4866                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4867                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4868 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4869 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4870 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4871 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"
4872 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4873 enabled fontconfig        && enable libfontconfig
4874 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4875 enabled libfreetype       && require_libfreetype
4876 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4877 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4878 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4879                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4880                                done || die "ERROR: libgsm not found"; }
4881 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4882 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4883 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4884 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4885 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4886 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4887 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4888 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
4889                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4890                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4891                                die "ERROR: libopenjpeg not found"; }
4892 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4893 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4894 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4895 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4896 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4897 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4898 enabled libsmbclient      && { use_pkg_config smbclient libsmbclient.h smbc_init ||
4899                                require smbclient libsmbclient.h smbc_init -lsmbclient; }
4900 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4901 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4902 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4903 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4904     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4905     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4906 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4907 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4908                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4909                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4910 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4911 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4912 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4913 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4914 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4915 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4916 enabled libvpx            && {
4917     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4918                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4919     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 ||
4920                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4921     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4922     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; } }
4923 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4924 enabled libwebp           && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
4925 enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
4926                                { require libx264 x264.h x264_encoder_encode -lx264 &&
4927                                  warn "using libx264 without pkg-config"; } } &&
4928                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4929                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4930 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4931                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4932                                die "ERROR: libx265 version must be >= 17."; }
4933 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4934 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4935 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4936 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4937 enabled nvenc             && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
4938                              { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
4939 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4940                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4941                                die "ERROR: openal not found"; } &&
4942                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4943                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4944 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4945                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4946                                die "ERROR: opencl not found"; } &&
4947                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4948                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4949                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4950 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4951                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4952                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4953                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4954                                die "ERROR: opengl not found."
4955                              }
4956 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4957                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4958                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4959                                die "ERROR: openssl not found"; }
4960 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4961
4962 if enabled gnutls; then
4963     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4964     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4965 fi
4966
4967 # libdc1394 check
4968 if enabled libdc1394; then
4969     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4970         enable libdc1394_2; } ||
4971     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4972         enable libdc1394_1; } ||
4973     die "ERROR: No version of libdc1394 found "
4974 fi
4975 if ! disabled sdl; then
4976     SDL_CONFIG="${cross_prefix}sdl-config"
4977     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4978         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4979         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4980         enable sdl
4981     else
4982         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4983             sdl_cflags=$("${SDL_CONFIG}" --cflags)
4984             sdl_libs=$("${SDL_CONFIG}" --libs)
4985             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4986             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4987             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4988             enable sdl
4989         elif enabled sdl ; then
4990             die "ERROR: SDL not found"
4991         else
4992             disable sdl
4993         fi
4994     fi
4995 fi
4996 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4997
4998 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4999 enabled makeinfo && (makeinfo --version | \
5000                      grep -q 'makeinfo (GNU texinfo) 5' > /dev/null 2>&1) \
5001     && enable makeinfo_html || disable makeinfo_html
5002 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5003 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
5004 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
5005 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5006
5007 check_header linux/fb.h
5008 check_header linux/videodev.h
5009 check_header linux/videodev2.h
5010 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5011
5012 check_header sys/videoio.h
5013 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5014
5015 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5016 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5017 # w32api 3.12 had it defined wrong
5018 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5019
5020 check_type "dshow.h" IBaseFilter
5021
5022 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5023 { check_header dev/bktr/ioctl_meteor.h &&
5024   check_header dev/bktr/ioctl_bt848.h; } ||
5025 { check_header machine/ioctl_meteor.h &&
5026   check_header machine/ioctl_bt848.h; } ||
5027 { check_header dev/video/meteor/ioctl_meteor.h &&
5028   check_header dev/video/bktr/ioctl_bt848.h; } ||
5029 check_header dev/ic/bt8xx.h
5030
5031 check_header sndio.h
5032 if check_struct sys/soundcard.h audio_buf_info bytes; then
5033     enable_safe sys/soundcard.h
5034 else
5035     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5036     #include <sys/soundcard.h>
5037     audio_buf_info abc;
5038 EOF
5039 fi
5040 check_header soundcard.h
5041
5042 enabled_any alsa_indev alsa_outdev &&
5043     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5044
5045 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5046     check_func jack_port_get_latency_range -ljack
5047
5048 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5049
5050 if enabled libcdio; then
5051     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5052     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5053     die "ERROR: libcdio-paranoia not found"
5054 fi
5055
5056 enabled xlib &&
5057     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5058
5059 if ! disabled libxcb; then
5060     check_pkg_config xcb xcb/xcb.h xcb_connect || {
5061         enabled libxcb && die "ERROR: libxcb not found";
5062     } && disable x11grab && enable libxcb
5063
5064 if enabled libxcb; then
5065     disabled libxcb_shm || {
5066         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5067             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5068         } && check_header sys/shm.h && enable libxcb_shm; }
5069
5070     disabled libxcb_xfixes || {
5071         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5072             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5073         } && enable libxcb_xfixes; }
5074
5075     disabled libxcb_shape || {
5076         check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5077             enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5078         } && enable libxcb_shape; }
5079
5080     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5081     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5082 fi
5083 fi
5084
5085 if enabled x11grab; then
5086     enabled xlib || die "ERROR: Xlib not found"
5087     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5088     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5089 fi
5090
5091 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5092
5093 enabled dxva2api_h &&
5094     check_cc <<EOF && enable dxva2api_cobj
5095 #define _WIN32_WINNT 0x0600
5096 #define COBJMACROS
5097 #include <windows.h>
5098 #include <d3d9.h>
5099 #include <dxva2api.h>
5100 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5101 EOF
5102
5103 enabled vaapi &&
5104     check_lib va/va.h vaInitialize -lva ||
5105     disable vaapi
5106
5107 enabled vdpau &&
5108     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5109     disable vdpau
5110
5111 enabled vdpau && enabled xlib &&
5112     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5113     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5114     enable vdpau_x11
5115
5116 # Funny iconv installations are not unusual, so check it after all flags have been set
5117 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5118
5119 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5120
5121 # add some useful compiler flags if supported
5122 check_cflags -Wdeclaration-after-statement
5123 check_cflags -Wall
5124 check_cflags -Wdisabled-optimization
5125 check_cflags -Wpointer-arith
5126 check_cflags -Wredundant-decls
5127 check_cflags -Wwrite-strings
5128 check_cflags -Wtype-limits
5129 check_cflags -Wundef
5130 check_cflags -Wmissing-prototypes
5131 check_cflags -Wno-pointer-to-int-cast
5132 check_cflags -Wstrict-prototypes
5133 check_cflags -Wempty-body
5134 enabled extra_warnings && check_cflags -Winline
5135
5136 check_disable_warning(){
5137     warning_flag=-W${1#-Wno-}
5138     test_cflags $warning_flag && add_cflags $1
5139 }
5140
5141 check_disable_warning -Wno-parentheses
5142 check_disable_warning -Wno-switch
5143 check_disable_warning -Wno-format-zero-length
5144 check_disable_warning -Wno-pointer-sign
5145
5146 # add some linker flags
5147 check_ldflags -Wl,--warn-common
5148 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5149 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5150 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5151
5152 # add some strip flags
5153 # -wN '..@*' is more selective than -x, but not available everywhere.
5154 check_stripflags -wN \'..@*\' || check_stripflags -x
5155
5156 enabled neon_clobber_test &&
5157     check_ldflags -Wl,--wrap,avcodec_open2              \
5158                   -Wl,--wrap,avcodec_decode_audio4      \
5159                   -Wl,--wrap,avcodec_decode_video2      \
5160                   -Wl,--wrap,avcodec_decode_subtitle2   \
5161                   -Wl,--wrap,avcodec_encode_audio2      \
5162                   -Wl,--wrap,avcodec_encode_video2      \
5163                   -Wl,--wrap,avcodec_encode_subtitle    \
5164                   -Wl,--wrap,swr_convert                \
5165                   -Wl,--wrap,avresample_convert ||
5166     disable neon_clobber_test
5167
5168 enabled xmm_clobber_test &&
5169     check_ldflags -Wl,--wrap,avcodec_open2              \
5170                   -Wl,--wrap,avcodec_decode_audio4      \
5171                   -Wl,--wrap,avcodec_decode_video2      \
5172                   -Wl,--wrap,avcodec_decode_subtitle2   \
5173                   -Wl,--wrap,avcodec_encode_audio2      \
5174                   -Wl,--wrap,avcodec_encode_video       \
5175                   -Wl,--wrap,avcodec_encode_video2      \
5176                   -Wl,--wrap,avcodec_encode_subtitle    \
5177                   -Wl,--wrap,swr_convert                \
5178                   -Wl,--wrap,avresample_convert         \
5179                   -Wl,--wrap,sws_scale ||
5180     disable xmm_clobber_test
5181
5182 echo "X{};" > $TMPV
5183 if test_ldflags -Wl,--version-script,$TMPV; then
5184     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5185     check_cc <<EOF && enable symver_asm_label
5186 void ff_foo(void) __asm__ ("av_foo@VERSION");
5187 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5188 EOF
5189     check_cc <<EOF && enable symver_gnu_asm
5190 __asm__(".symver ff_foo,av_foo@VERSION");
5191 void ff_foo(void) {}
5192 EOF
5193 fi
5194
5195 if [ -z "$optflags" ]; then
5196     if enabled small; then
5197         optflags=$cflags_size
5198     elif enabled optimizations; then
5199         optflags=$cflags_speed
5200     else
5201         optflags=$cflags_noopt
5202     fi
5203 fi
5204
5205 check_optflags(){
5206     check_cflags "$@"
5207     enabled lto && check_ldflags "$@"
5208 }
5209
5210
5211 if enabled lto; then
5212     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5213     check_cflags  -flto
5214     check_ldflags -flto $cpuflags
5215     disable inline_asm_direct_symbol_refs
5216 fi
5217
5218 check_optflags $optflags
5219 check_optflags -fno-math-errno
5220 check_optflags -fno-signed-zeros
5221
5222 enabled ftrapv && check_cflags -ftrapv
5223
5224 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5225 int x;
5226 EOF
5227
5228
5229 if enabled icc; then
5230     # Just warnings, no remarks
5231     check_cflags -w1
5232     # -wd: Disable following warnings
5233     # 144, 167, 556: -Wno-pointer-sign
5234     # 188: enumerated type mixed with another type
5235     # 1292: attribute "foo" ignored
5236     # 1419: external declaration in primary source file
5237     # 10006: ignoring unknown option -fno-signed-zeros
5238     # 10148: ignoring unknown option -Wno-parentheses
5239     # 10156: ignoring option '-W'; no argument required
5240     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5241     # 11030: Warning unknown option --as-needed
5242     # 10156: ignoring option '-export'; no argument required
5243     check_ldflags -wd10156,11030
5244     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5245     enable ebp_available
5246     # The test above does not test linking
5247     enabled lto && disable symver_asm_label
5248     if enabled x86_32; then
5249         icc_version=$($cc -dumpversion)
5250         test ${icc_version%%.*} -ge 11 &&
5251             check_cflags -falign-stack=maintain-16-byte ||
5252             disable aligned_stack
5253     fi
5254 elif enabled ccc; then
5255     # disable some annoying warnings
5256     add_cflags -msg_disable bitnotint
5257     add_cflags -msg_disable mixfuncvoid
5258     add_cflags -msg_disable nonstandcast
5259     add_cflags -msg_disable unsupieee
5260 elif enabled gcc; then
5261     check_optflags -fno-tree-vectorize
5262     check_cflags -Werror=format-security
5263     check_cflags -Werror=implicit-function-declaration
5264     check_cflags -Werror=missing-prototypes
5265     check_cflags -Werror=return-type
5266     check_cflags -Werror=vla
5267     check_cflags -Wformat
5268     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5269 elif enabled llvm_gcc; then
5270     check_cflags -mllvm -stack-alignment=16
5271 elif enabled clang; then
5272     check_cflags -mllvm -stack-alignment=16
5273     check_cflags -Qunused-arguments
5274     check_cflags -Werror=implicit-function-declaration
5275     check_cflags -Werror=missing-prototypes
5276     check_cflags -Werror=return-type
5277 elif enabled cparser; then
5278     add_cflags -Wno-missing-variable-declarations
5279     add_cflags -Wno-empty-statement
5280 elif enabled armcc; then
5281     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5282     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5283     # 2523: use of inline assembly is deprecated
5284     add_cflags -W${armcc_opt},--diag_suppress=2523
5285     add_cflags -W${armcc_opt},--diag_suppress=1207
5286     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5287     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5288     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5289     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5290 elif enabled tms470; then
5291     add_cflags -pds=824 -pds=837
5292     disable inline_asm
5293 elif enabled pathscale; then
5294     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5295 elif enabled_any msvc icl; then
5296     enabled x86_32 && disable aligned_stack
5297     enabled_all x86_32 debug && add_cflags -Oy-
5298     enabled debug && add_ldflags -debug
5299     enable pragma_deprecated
5300     if enabled icl; then
5301         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5302         # (correctly) on icl 13.x.
5303         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5304             add_cflags -Qansi-alias
5305         # Some inline asm is not compilable in debug
5306         if enabled debug; then
5307             disable ebp_available
5308             disable ebx_available
5309         fi
5310     fi
5311     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5312     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5313 fi
5314
5315 case $as_type in
5316     clang)
5317         add_asflags -Qunused-arguments
5318     ;;
5319 esac
5320
5321 case $ld_type in
5322     clang)
5323         check_ldflags -Qunused-arguments
5324     ;;
5325 esac
5326
5327 case $target_os in
5328     osf1)
5329         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5330     ;;
5331     plan9)
5332         add_cppflags -Dmain=plan9_main
5333     ;;
5334 esac
5335
5336 enable frame_thread_encoder
5337
5338 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5339
5340 check_deps $CONFIG_LIST       \
5341            $CONFIG_EXTRA      \
5342            $HAVE_LIST         \
5343            $ALL_COMPONENTS    \
5344
5345 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"
5346
5347
5348 if test $target_os = "haiku"; then
5349     disable memalign
5350     disable posix_memalign
5351 fi
5352
5353 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5354     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5355     enable dxva2_lib
5356
5357 ! enabled_any memalign posix_memalign aligned_malloc &&
5358     enabled simd_align_16 && enable memalign_hack
5359
5360 # add_dep lib dep
5361 # -> enable ${lib}_deps_${dep}
5362 # -> add $dep to ${lib}_deps only once
5363 add_dep() {
5364     lib=$1
5365     dep=$2
5366     enabled "${lib}_deps_${dep}" && return 0
5367     enable  "${lib}_deps_${dep}"
5368     prepend "${lib}_deps" $dep
5369 }
5370
5371 # merge deps lib components
5372 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5373 merge_deps() {
5374     lib=$1
5375     shift
5376     for comp in $*; do
5377         enabled $comp || continue
5378         eval "dep=\"\$${comp}_deps\""
5379         for d in $dep; do
5380             add_dep $lib $d
5381         done
5382     done
5383 }
5384
5385 merge_deps libavfilter $FILTER_LIST
5386
5387 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5388
5389 for thread in $THREADS_LIST; do
5390     if enabled $thread; then
5391         test -n "$thread_type" &&
5392             die "ERROR: Only one thread type must be selected." ||
5393             thread_type="$thread"
5394     fi
5395 done
5396
5397 enabled zlib && add_cppflags -DZLIB_CONST
5398
5399 # conditional library dependencies, in linking order
5400 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5401 enabled aresample_filter    && prepend avfilter_deps "swresample"
5402 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5403 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5404 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5405 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5406 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5407 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5408 enabled mp_filter           && prepend avfilter_deps "avcodec"
5409 enabled pan_filter          && prepend avfilter_deps "swresample"
5410 enabled pp_filter           && prepend avfilter_deps "postproc"
5411 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5412 enabled resample_filter && prepend avfilter_deps "avresample"
5413 enabled sab_filter          && prepend avfilter_deps "swscale"
5414 enabled scale_filter    && prepend avfilter_deps "swscale"
5415 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5416 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5417 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5418 enabled uspp_filter         && prepend avfilter_deps "avcodec"
5419
5420 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5421
5422 enabled opus_decoder    && prepend avcodec_deps "swresample"
5423
5424 expand_deps(){
5425     lib_deps=${1}_deps
5426     eval "deps=\$$lib_deps"
5427     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5428     unique $lib_deps
5429 }
5430
5431 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5432 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5433
5434 map 'expand_deps $v' $LIBRARY_LIST
5435
5436 echo "install prefix            $prefix"
5437 echo "source path               $source_path"
5438 echo "C compiler                $cc"
5439 echo "C library                 $libc_type"
5440 if test "$host_cc" != "$cc"; then
5441     echo "host C compiler           $host_cc"
5442     echo "host C library            $host_libc_type"
5443 fi
5444 echo "ARCH                      $arch ($cpu)"
5445 if test "$build_suffix" != ""; then
5446     echo "build suffix              $build_suffix"
5447 fi
5448 if test "$progs_suffix" != ""; then
5449     echo "progs suffix              $progs_suffix"
5450 fi
5451 if test "$extra_version" != ""; then
5452     echo "version string suffix     $extra_version"
5453 fi
5454 echo "big-endian                ${bigendian-no}"
5455 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5456 if enabled x86; then
5457     echo "${yasmexe}                      ${yasm-no}"
5458     echo "MMX enabled               ${mmx-no}"
5459     echo "MMXEXT enabled            ${mmxext-no}"
5460     echo "3DNow! enabled            ${amd3dnow-no}"
5461     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5462     echo "SSE enabled               ${sse-no}"
5463     echo "SSSE3 enabled             ${ssse3-no}"
5464     echo "AVX enabled               ${avx-no}"
5465     echo "XOP enabled               ${xop-no}"
5466     echo "FMA3 enabled              ${fma3-no}"
5467     echo "FMA4 enabled              ${fma4-no}"
5468     echo "i686 features enabled     ${i686-no}"
5469     echo "CMOV is fast              ${fast_cmov-no}"
5470     echo "EBX available             ${ebx_available-no}"
5471     echo "EBP available             ${ebp_available-no}"
5472 fi
5473 if enabled aarch64; then
5474     echo "NEON enabled              ${neon-no}"
5475     echo "VFP enabled               ${vfp-no}"
5476 fi
5477 if enabled arm; then
5478     echo "ARMv5TE enabled           ${armv5te-no}"
5479     echo "ARMv6 enabled             ${armv6-no}"
5480     echo "ARMv6T2 enabled           ${armv6t2-no}"
5481     echo "VFP enabled               ${vfp-no}"
5482     echo "NEON enabled              ${neon-no}"
5483     echo "THUMB enabled             ${thumb-no}"
5484 fi
5485 if enabled mips; then
5486     echo "MIPS FPU enabled          ${mipsfpu-no}"
5487     echo "MIPS32R2 enabled          ${mips32r2-no}"
5488     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5489     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5490 fi
5491 if enabled ppc; then
5492     echo "AltiVec enabled           ${altivec-no}"
5493     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5494     echo "PPC VSX optimizations     ${vsx-no}"
5495     echo "dcbzl available           ${dcbzl-no}"
5496 fi
5497 echo "debug symbols             ${debug-no}"
5498 echo "strip symbols             ${stripping-no}"
5499 echo "optimize for size         ${small-no}"
5500 echo "optimizations             ${optimizations-no}"
5501 echo "static                    ${static-no}"
5502 echo "shared                    ${shared-no}"
5503 echo "postprocessing support    ${postproc-no}"
5504 echo "new filter support        ${avfilter-no}"
5505 echo "network support           ${network-no}"
5506 echo "threading support         ${thread_type-no}"
5507 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5508 echo "SDL support               ${sdl-no}"
5509 echo "opencl enabled            ${opencl-no}"
5510 echo "texi2html enabled         ${texi2html-no}"
5511 echo "perl enabled              ${perl-no}"
5512 echo "pod2man enabled           ${pod2man-no}"
5513 echo "makeinfo enabled          ${makeinfo-no}"
5514 echo "makeinfo supports HTML    ${makeinfo_html-no}"
5515 test -n "$random_seed" &&
5516     echo "random seed               ${random_seed}"
5517 echo
5518
5519 echo "External libraries:"
5520 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5521 echo
5522
5523 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5524     echo "Enabled ${type}s:"
5525     eval list=\$$(toupper $type)_LIST
5526     print_enabled '_*' $list | print_3_columns
5527     echo
5528 done
5529
5530 license="LGPL version 2.1 or later"
5531 if enabled nonfree; then
5532     license="nonfree and unredistributable"
5533 elif enabled gplv3; then
5534     license="GPL version 3 or later"
5535 elif enabled lgplv3; then
5536     license="LGPL version 3 or later"
5537 elif enabled gpl; then
5538     license="GPL version 2 or later"
5539 fi
5540
5541 echo "License: $license"
5542
5543 echo "Creating config.mak, config.h, and doc/config.texi..."
5544
5545 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5546
5547 enabled stripping || strip="echo skipping strip"
5548
5549 config_files="$TMPH config.mak doc/config.texi"
5550
5551 cat > config.mak <<EOF
5552 # Automatically generated by configure - do not modify!
5553 ifndef FFMPEG_CONFIG_MAK
5554 FFMPEG_CONFIG_MAK=1
5555 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5556 prefix=$prefix
5557 LIBDIR=\$(DESTDIR)$libdir
5558 SHLIBDIR=\$(DESTDIR)$shlibdir
5559 INCDIR=\$(DESTDIR)$incdir
5560 BINDIR=\$(DESTDIR)$bindir
5561 DATADIR=\$(DESTDIR)$datadir
5562 DOCDIR=\$(DESTDIR)$docdir
5563 MANDIR=\$(DESTDIR)$mandir
5564 SRC_PATH=$source_path
5565 ifndef MAIN_MAKEFILE
5566 SRC_PATH:=\$(SRC_PATH:.%=..%)
5567 endif
5568 CC_IDENT=$cc_ident
5569 ARCH=$arch
5570 INTRINSICS=$intrinsics
5571 CC=$cc
5572 CXX=$cxx
5573 AS=$as
5574 LD=$ld
5575 DEPCC=$dep_cc
5576 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5577 DEPAS=$as
5578 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5579 YASM=$yasmexe
5580 DEPYASM=$yasmexe
5581 AR=$ar
5582 ARFLAGS=$arflags
5583 AR_O=$ar_o
5584 RANLIB=$ranlib
5585 STRIP=$strip
5586 CP=cp -p
5587 LN_S=$ln_s
5588 CPPFLAGS=$CPPFLAGS
5589 CFLAGS=$CFLAGS
5590 CXXFLAGS=$CXXFLAGS
5591 ASFLAGS=$ASFLAGS
5592 AS_C=$AS_C
5593 AS_O=$AS_O
5594 CC_C=$CC_C
5595 CC_E=$CC_E
5596 CC_O=$CC_O
5597 CXX_C=$CXX_C
5598 CXX_O=$CXX_O
5599 LD_O=$LD_O
5600 LD_LIB=$LD_LIB
5601 LD_PATH=$LD_PATH
5602 DLLTOOL=$dlltool
5603 WINDRES=$windres
5604 DEPWINDRES=$dep_cc
5605 DOXYGEN=$doxygen
5606 LDFLAGS=$LDFLAGS
5607 LDEXEFLAGS=$LDEXEFLAGS
5608 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5609 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5610 YASMFLAGS=$YASMFLAGS
5611 BUILDSUF=$build_suffix
5612 PROGSSUF=$progs_suffix
5613 FULLNAME=$FULLNAME
5614 LIBPREF=$LIBPREF
5615 LIBSUF=$LIBSUF
5616 LIBNAME=$LIBNAME
5617 SLIBPREF=$SLIBPREF
5618 SLIBSUF=$SLIBSUF
5619 EXESUF=$EXESUF
5620 EXTRA_VERSION=$extra_version
5621 CCDEP=$CCDEP
5622 CXXDEP=$CXXDEP
5623 CCDEP_FLAGS=$CCDEP_FLAGS
5624 ASDEP=$ASDEP
5625 ASDEP_FLAGS=$ASDEP_FLAGS
5626 CC_DEPFLAGS=$CC_DEPFLAGS
5627 AS_DEPFLAGS=$AS_DEPFLAGS
5628 HOSTCC=$host_cc
5629 HOSTLD=$host_ld
5630 HOSTCFLAGS=$host_cflags
5631 HOSTCPPFLAGS=$host_cppflags
5632 HOSTEXESUF=$HOSTEXESUF
5633 HOSTLDFLAGS=$host_ldflags
5634 HOSTLIBS=$host_libs
5635 DEPHOSTCC=$host_cc
5636 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5637 HOSTCCDEP=$HOSTCCDEP
5638 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5639 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5640 HOSTCC_C=$HOSTCC_C
5641 HOSTCC_O=$HOSTCC_O
5642 HOSTLD_O=$HOSTLD_O
5643 TARGET_EXEC=$target_exec $target_exec_args
5644 TARGET_PATH=$target_path
5645 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5646 CFLAGS-ffplay=$sdl_cflags
5647 ZLIB=$($ldflags_filter -lz)
5648 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5649 EXTRALIBS=$extralibs
5650 COMPAT_OBJS=$compat_objs
5651 EXEOBJS=$exeobjs
5652 INSTALL=$install
5653 LIBTARGET=${LIBTARGET}
5654 SLIBNAME=${SLIBNAME}
5655 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5656 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5657 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5658 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5659 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5660 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5661 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5662 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5663 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5664 NOREDZONE_FLAGS=$noredzone_flags
5665 EOF
5666
5667 get_version(){
5668     lcname=lib${1}
5669     name=$(toupper $lcname)
5670     file=$source_path/$lcname/version.h
5671     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5672     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5673     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5674     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5675     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5676     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5677 }
5678
5679 map 'get_version $v' $LIBRARY_LIST
5680
5681 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5682
5683 print_program_libs(){
5684     eval "program_libs=\$${1}_libs"
5685     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5686 }
5687
5688 map 'print_program_libs $v' $PROGRAM_LIST
5689
5690 cat > $TMPH <<EOF
5691 /* Automatically generated by configure - do not modify! */
5692 #ifndef FFMPEG_CONFIG_H
5693 #define FFMPEG_CONFIG_H
5694 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5695 #define FFMPEG_LICENSE "$(c_escape $license)"
5696 #define CONFIG_THIS_YEAR 2014
5697 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5698 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5699 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5700 #define av_restrict $_restrict
5701 #define EXTERN_PREFIX "${extern_prefix}"
5702 #define EXTERN_ASM ${extern_prefix}
5703 #define BUILDSUF "$build_suffix"
5704 #define SLIBSUF "$SLIBSUF"
5705 #define HAVE_MMX2 HAVE_MMXEXT
5706 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5707 EOF
5708
5709 test -n "$assert_level" &&
5710     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5711
5712 test -n "$malloc_prefix" &&
5713     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5714
5715 if enabled yasm; then
5716     append config_files $TMPASM
5717     printf '' >$TMPASM
5718 fi
5719
5720 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5721
5722
5723 mkdir -p doc
5724 mkdir -p tests
5725 echo "@c auto-generated by configure" > doc/config.texi
5726
5727 print_config ARCH_   "$config_files" $ARCH_LIST
5728 print_config HAVE_   "$config_files" $HAVE_LIST
5729 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5730                                      $CONFIG_EXTRA      \
5731                                      $ALL_COMPONENTS    \
5732
5733 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5734 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5735
5736 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5737 cp_if_changed $TMPH config.h
5738 touch .config
5739
5740 enabled yasm && cp_if_changed $TMPASM config.asm
5741
5742 cat > $TMPH <<EOF
5743 /* Generated by ffconf */
5744 #ifndef AVUTIL_AVCONFIG_H
5745 #define AVUTIL_AVCONFIG_H
5746 EOF
5747
5748 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5749
5750 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5751
5752 cp_if_changed $TMPH libavutil/avconfig.h
5753
5754 if test -n "$WARNINGS"; then
5755     printf "\n$WARNINGS"
5756     enabled fatal_warnings && exit 1
5757 fi
5758
5759 # build pkg-config files
5760
5761 lib_version(){
5762     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5763 }
5764
5765 pkgconfig_generate(){
5766     name=$1
5767     shortname=${name#lib}${build_suffix}
5768     comment=$2
5769     version=$3
5770     libs=$4
5771     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5772     requires=${requires%, }
5773     enabled ${name#lib} || return 0
5774     mkdir -p $name
5775     cat <<EOF > $name/$name${build_suffix}.pc
5776 prefix=$prefix
5777 exec_prefix=\${prefix}
5778 libdir=$libdir
5779 includedir=$incdir
5780
5781 Name: $name
5782 Description: $comment
5783 Version: $version
5784 Requires: $(enabled shared || echo $requires)
5785 Requires.private: $(enabled shared && echo $requires)
5786 Conflicts:
5787 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5788 Libs.private: $(enabled shared && echo $libs)
5789 Cflags: -I\${includedir}
5790 EOF
5791
5792 mkdir -p doc/examples/pc-uninstalled
5793 includedir=${source_path}
5794 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5795     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5796 prefix=
5797 exec_prefix=
5798 libdir=\${pcfiledir}/../../../$name
5799 includedir=${includedir}
5800
5801 Name: $name
5802 Description: $comment
5803 Version: $version
5804 Requires: $requires
5805 Conflicts:
5806 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5807 Cflags: -I\${includedir}
5808 EOF
5809 }
5810
5811 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
5812 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5813 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5814 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5815 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5816 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5817 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
5818 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5819 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"