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 [PREFIX/lib]
  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
 198   --enable-frei0r          enable frei0r video filtering
 199   --enable-gnutls          enable gnutls [no]
 200   --disable-iconv          disable iconv [autodetect]
 201   --enable-ladspa          enable LADSPA audio filtering
 202   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 203   --enable-libass          enable libass subtitles rendering [no]
 204   --enable-libbluray       enable BluRay reading using libbluray [no]
 205   --enable-libbs2b         enable bs2b DSP library [no]
 206   --enable-libcaca         enable textual display using libcaca
 207   --enable-libcelt         enable CELT decoding via libcelt [no]
 208   --enable-libcdio         enable audio CD grabbing with libcdio
 209   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 210                            and libraw1394 [no]
 211   --enable-libfaac         enable AAC encoding via libfaac [no]
 212   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 213   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 214   --enable-libfreetype     enable libfreetype [no]
 215   --enable-libfribidi      enable libfribidi [no]
 216   --enable-libgme          enable Game Music Emu via libgme [no]
 217   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 218   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 219   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 220   --enable-libmodplug      enable ModPlug via libmodplug [no]
 221   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 222   --enable-libnut          enable NUT (de)muxing via libnut,
 223                            native (de)muxer exists [no]
 224   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 225   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 226   --enable-libopencv       enable video filtering via libopencv [no]
 227   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 228   --enable-libopus         enable Opus de/encoding via libopus [no]
 229   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 230   --enable-libquvi         enable quvi input via libquvi [no]
 231   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 232   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 233   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 234   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 235   --enable-libsoxr         enable Include libsoxr resampling [no]
 236   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 237   --enable-libssh          enable SFTP protocol via libssh [no]
 238   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 239   --enable-libtheora       enable Theora encoding via libtheora [no]
 240   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 241   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 242   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 243   --enable-libvidstab      enable video stabilization using vid.stab [no]
 244   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 245   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 246   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 247                            native implementation exists [no]
 248   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 249   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 250   --enable-libwebp         enable WebP encoding via libwebp [no]
 251   --enable-libx264         enable H.264 encoding via x264 [no]
 252   --enable-libx265         enable HEVC encoding via x265 [no]
 253   --enable-libxavs         enable AVS encoding via xavs [no]
 254   --enable-libxcb          enable X11 grabbing using XCB [auto]
 255   --enable-libxcb-shm      enable X11 grabbing shm communication [auto]
 256   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [auto]
 257   --enable-libxvid         enable Xvid encoding via xvidcore,
 258                            native MPEG-4/Xvid encoder exists [no]
 259   --enable-libzmq          enable message passing via libzmq [no]
 260   --enable-libzvbi         enable teletext support via libzvbi [no]
 261   --disable-lzma           disable lzma [autodetect]
 262   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
 263   --enable-openal          enable OpenAL 1.1 capture support [no]
 264   --enable-opencl          enable OpenCL code
 265   --enable-opengl          enable OpenGL rendering [no]
 266   --enable-openssl         enable openssl [no]
 267   --disable-sdl            disable sdl [autodetect]
 268   --enable-x11grab         enable X11 grabbing (legacy) [no]
 269   --disable-xlib           disable xlib [autodetect]
 270   --disable-zlib           disable zlib [autodetect]
 271
 272 Toolchain options:
 273   --arch=ARCH              select architecture [$arch]
 274   --cpu=CPU                select the minimum required CPU (affects
 275                            instruction selection, may crash on older CPUs)
 276   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 277   --progs-suffix=SUFFIX    program name suffix []
 278   --enable-cross-compile   assume a cross-compiler is used
 279   --sysroot=PATH           root of cross-build tree
 280   --sysinclude=PATH        location of cross-build system headers
 281   --target-os=OS           compiler targets OS [$target_os]
 282   --target-exec=CMD        command to run executables on target
 283   --target-path=DIR        path to view of build directory on target
 284   --target-samples=DIR     path to samples directory on target
 285   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 286   --toolchain=NAME         set tool defaults according to NAME
 287   --nm=NM                  use nm tool NM [$nm_default]
 288   --ar=AR                  use archive tool AR [$ar_default]
 289   --as=AS                  use assembler AS [$as_default]
 290   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 291   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 292   --cc=CC                  use C compiler CC [$cc_default]
 293   --cxx=CXX                use C compiler CXX [$cxx_default]
 294   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 295   --ld=LD                  use linker LD [$ld_default]
 296   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 297   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 298   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 299   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 300   --host-cc=HOSTCC         use host C compiler HOSTCC
 301   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 302   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 303   --host-ld=HOSTLD         use host linker HOSTLD
 304   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 305   --host-libs=HLIBS        use libs HLIBS when linking for host
 306   --host-os=OS             compiler host OS [$target_os]
 307   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 308   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 309   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 310   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 311   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 312   --extra-version=STRING   version string suffix []
 313   --optflags=OPTFLAGS      override optimization-related compiler flags
 314   --build-suffix=SUFFIX    library name suffix []
 315   --enable-pic             build position-independent code
 316   --enable-thumb           compile for Thumb instruction set
 317   --enable-lto             use link-time optimization
 318
 319 Advanced options (experts only):
 320   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 321   --disable-symver         disable symbol versioning
 322   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 323   --disable-safe-bitstream-reader
 324                            disable buffer boundary checking in bitreaders
 325                            (faster, but may crash)
 326   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 327   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 328
 329 Optimization options (experts only):
 330   --disable-asm            disable all assembly optimizations
 331   --disable-altivec        disable AltiVec optimizations
 332   --disable-amd3dnow       disable 3DNow! optimizations
 333   --disable-amd3dnowext    disable 3DNow! extended optimizations
 334   --disable-mmx            disable MMX optimizations
 335   --disable-mmxext         disable MMXEXT optimizations
 336   --disable-sse            disable SSE optimizations
 337   --disable-sse2           disable SSE2 optimizations
 338   --disable-sse3           disable SSE3 optimizations
 339   --disable-ssse3          disable SSSE3 optimizations
 340   --disable-sse4           disable SSE4 optimizations
 341   --disable-sse42          disable SSE4.2 optimizations
 342   --disable-avx            disable AVX optimizations
 343   --disable-xop            disable XOP optimizations
 344   --disable-fma3           disable FMA3 optimizations
 345   --disable-fma4           disable FMA4 optimizations
 346   --disable-avx2           disable AVX2 optimizations
 347   --disable-armv5te        disable armv5te optimizations
 348   --disable-armv6          disable armv6 optimizations
 349   --disable-armv6t2        disable armv6t2 optimizations
 350   --disable-vfp            disable VFP optimizations
 351   --disable-neon           disable NEON optimizations
 352   --disable-inline-asm     disable use of inline assembly
 353   --disable-yasm           disable use of nasm/yasm assembly
 354   --disable-mips32r2       disable MIPS32R2 optimizations
 355   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 356   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 357   --disable-mipsfpu        disable floating point MIPS optimizations
 358   --disable-fast-unaligned consider unaligned accesses slow
 359
 360 Developer options (useful when working on FFmpeg itself):
 361   --disable-debug          disable debugging symbols
 362   --enable-debug=LEVEL     set the debug level [$debuglevel]
 363   --disable-optimizations  disable compiler optimizations
 364   --enable-extra-warnings  enable more compiler warnings
 365   --disable-stripping      disable stripping of executables and shared libraries
 366   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 367                            2 causes a slowdown at runtime.
 368   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 369   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 370                            leaks and errors, using the specified valgrind binary.
 371                            Cannot be combined with --target-exec
 372   --enable-ftrapv          Trap arithmetic overflows
 373   --samples=PATH           location of test samples for FATE, if not set use
 374                            \$FATE_SAMPLES at make invocation time.
 375   --enable-neon-clobber-test check NEON registers for clobbering (should be
 376                            used only for debugging purposes)
 377   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 378                            should be used only for debugging purposes)
 379   --enable-random          randomly enable/disable components
 380   --disable-random
 381   --enable-random=LIST     randomly enable/disable specific components or
 382   --disable-random=LIST    component groups. LIST is a comma-separated list
 383                            of NAME[:PROB] entries where NAME is a component
 384                            (group) and PROB the probability associated with
 385                            NAME (default 0.5).
 386   --random-seed=VALUE      seed value for --enable/disable-random
 387
 388 NOTE: Object files are built at the place where configure is launched.
 389 EOF
 390   exit 0
 391 }
 392
 393 quotes='""'
 394
 395 log(){
 396     echo "$@" >> $logfile
 397 }
 398
 399 log_file(){
 400     log BEGIN $1
 401     pr -n -t $1 >> $logfile
 402     log END $1
 403 }
 404
 405 echolog(){
 406     log "$@"
 407     echo "$@"
 408 }
 409
 410 warn(){
 411     log "WARNING: $*"
 412     WARNINGS="${WARNINGS}WARNING: $*\n"
 413 }
 414
 415 die(){
 416     echolog "$@"
 417     cat <<EOF
 418
 419 If you think configure made a mistake, make sure you are using the latest
 420 version from Git.  If the latest version fails, report the problem to the
 421 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 422 EOF
 423     if disabled logging; then
 424         cat <<EOF
 425 Rerun configure with logging enabled (do not use --disable-logging), and
 426 include the log this produces with your report.
 427 EOF
 428     else
 429         cat <<EOF
 430 Include the log file "$logfile" produced by configure as this will help
 431 solve the problem.
 432 EOF
 433     fi
 434     exit 1
 435 }
 436
 437 # Avoid locale weirdness, besides we really just want to translate ASCII.
 438 toupper(){
 439     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 440 }
 441
 442 tolower(){
 443     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 444 }
 445
 446 c_escape(){
 447     echo "$*" | sed 's/["\\]/\\\0/g'
 448 }
 449
 450 sh_quote(){
 451     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 452     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 453     echo "$v"
 454 }
 455
 456 cleanws(){
 457     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 458 }
 459
 460 filter(){
 461     pat=$1
 462     shift
 463     for v; do
 464         eval "case $v in $pat) echo $v ;; esac"
 465     done
 466 }
 467
 468 filter_out(){
 469     pat=$1
 470     shift
 471     for v; do
 472         eval "case $v in $pat) ;; *) echo $v ;; esac"
 473     done
 474 }
 475
 476 map(){
 477     m=$1
 478     shift
 479     for v; do eval $m; done
 480 }
 481
 482 add_suffix(){
 483     suffix=$1
 484     shift
 485     for v; do echo ${v}${suffix}; done
 486 }
 487
 488 set_all(){
 489     value=$1
 490     shift
 491     for var in $*; do
 492         eval $var=$value
 493     done
 494 }
 495
 496 set_weak(){
 497     value=$1
 498     shift
 499     for var; do
 500         eval : \${$var:=$value}
 501     done
 502 }
 503
 504 sanitize_var_name(){
 505     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 506 }
 507
 508 set_safe(){
 509     var=$1
 510     shift
 511     eval $(sanitize_var_name "$var")='$*'
 512 }
 513
 514 get_safe(){
 515     eval echo \$$(sanitize_var_name "$1")
 516 }
 517
 518 pushvar(){
 519     for pvar in $*; do
 520         eval level=\${${pvar}_level:=0}
 521         eval ${pvar}_${level}="\$$pvar"
 522         eval ${pvar}_level=$(($level+1))
 523     done
 524 }
 525
 526 popvar(){
 527     for pvar in $*; do
 528         eval level=\${${pvar}_level:-0}
 529         test $level = 0 && continue
 530         eval level=$(($level-1))
 531         eval $pvar="\${${pvar}_${level}}"
 532         eval ${pvar}_level=$level
 533         eval unset ${pvar}_${level}
 534     done
 535 }
 536
 537 enable(){
 538     set_all yes $*
 539 }
 540
 541 disable(){
 542     set_all no $*
 543 }
 544
 545 enable_weak(){
 546     set_weak yes $*
 547 }
 548
 549 disable_weak(){
 550     set_weak no $*
 551 }
 552
 553 enable_safe(){
 554     for var; do
 555         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 556     done
 557 }
 558
 559 disable_safe(){
 560     for var; do
 561         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 562     done
 563 }
 564
 565 do_enable_deep(){
 566     for var; do
 567         enabled $var && continue
 568         eval sel="\$${var}_select"
 569         eval sgs="\$${var}_suggest"
 570         pushvar var sgs
 571         enable_deep $sel
 572         popvar sgs
 573         enable_deep_weak $sgs
 574         popvar var
 575     done
 576 }
 577
 578 enable_deep(){
 579     do_enable_deep $*
 580     enable $*
 581 }
 582
 583 enable_deep_weak(){
 584     for var; do
 585         disabled $var && continue
 586         pushvar var
 587         do_enable_deep $var
 588         popvar var
 589         enable_weak $var
 590     done
 591 }
 592
 593 enabled(){
 594     test "${1#!}" = "$1" && op== || op=!=
 595     eval test "x\$${1#!}" $op "xyes"
 596 }
 597
 598 disabled(){
 599     test "${1#!}" = "$1" && op== || op=!=
 600     eval test "x\$${1#!}" $op "xno"
 601 }
 602
 603 enabled_all(){
 604     for opt; do
 605         enabled $opt || return 1
 606     done
 607 }
 608
 609 disabled_all(){
 610     for opt; do
 611         disabled $opt || return 1
 612     done
 613 }
 614
 615 enabled_any(){
 616     for opt; do
 617         enabled $opt && return 0
 618     done
 619 }
 620
 621 disabled_any(){
 622     for opt; do
 623         disabled $opt && return 0
 624     done
 625     return 1
 626 }
 627
 628 set_default(){
 629     for opt; do
 630         eval : \${$opt:=\$${opt}_default}
 631     done
 632 }
 633
 634 is_in(){
 635     value=$1
 636     shift
 637     for var in $*; do
 638         [ $var = $value ] && return 0
 639     done
 640     return 1
 641 }
 642
 643 do_check_deps(){
 644     for cfg; do
 645         cfg="${cfg#!}"
 646         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 647         disabled ${cfg}_checking && continue
 648         enable ${cfg}_checking
 649         append allopts $cfg
 650
 651         eval dep_all="\$${cfg}_deps"
 652         eval dep_any="\$${cfg}_deps_any"
 653         eval dep_sel="\$${cfg}_select"
 654         eval dep_sgs="\$${cfg}_suggest"
 655         eval dep_ifa="\$${cfg}_if"
 656         eval dep_ifn="\$${cfg}_if_any"
 657
 658         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 659         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 660         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 661
 662         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 663         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 664         enabled_all  $dep_all || disable $cfg
 665         enabled_any  $dep_any || disable $cfg
 666         disabled_any $dep_sel && disable $cfg
 667
 668         if enabled $cfg; then
 669             enable_deep $dep_sel
 670             enable_deep_weak $dep_sgs
 671         fi
 672
 673         disable ${cfg}_checking
 674     done
 675 }
 676
 677 check_deps(){
 678     unset allopts
 679
 680     do_check_deps "$@"
 681
 682     for cfg in $allopts; do
 683         enabled $cfg || continue
 684         eval dep_extralibs="\$${cfg}_extralibs"
 685         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 686     done
 687 }
 688
 689 print_config(){
 690     pfx=$1
 691     files=$2
 692     shift 2
 693     map 'eval echo "$v \${$v:-no}"' "$@" |
 694     awk "BEGIN { split(\"$files\", files) }
 695         {
 696             c = \"$pfx\" toupper(\$1);
 697             v = \$2;
 698             sub(/yes/, 1, v);
 699             sub(/no/,  0, v);
 700             for (f in files) {
 701                 file = files[f];
 702                 if (file ~ /\\.h\$/) {
 703                     printf(\"#define %s %d\\n\", c, v) >>file;
 704                 } else if (file ~ /\\.asm\$/) {
 705                     printf(\"%%define %s %d\\n\", c, v) >>file;
 706                 } else if (file ~ /\\.mak\$/) {
 707                     n = -v ? \"\" : \"!\";
 708                     printf(\"%s%s=yes\\n\", n, c) >>file;
 709                 } else if (file ~ /\\.texi\$/) {
 710                     pre = -v ? \"\" : \"@c \";
 711                     yesno = \$2;
 712                     c2 = tolower(c);
 713                     gsub(/_/, \"-\", c2);
 714                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 715                 }
 716             }
 717         }"
 718 }
 719
 720 print_enabled(){
 721     suf=$1
 722     shift
 723     for v; do
 724         enabled $v && printf "%s\n" ${v%$suf};
 725     done
 726 }
 727
 728 append(){
 729     var=$1
 730     shift
 731     eval "$var=\"\$$var $*\""
 732 }
 733
 734 prepend(){
 735     var=$1
 736     shift
 737     eval "$var=\"$* \$$var\""
 738 }
 739
 740 unique(){
 741     var=$1
 742     uniq_list=""
 743     for tok in $(eval echo \$$var); do
 744         uniq_list="$(filter_out $tok $uniq_list) $tok"
 745     done
 746     eval "$var=\"${uniq_list}\""
 747 }
 748
 749 add_cppflags(){
 750     append CPPFLAGS "$@"
 751 }
 752
 753 add_cflags(){
 754     append CFLAGS $($cflags_filter "$@")
 755 }
 756
 757 add_cxxflags(){
 758     append CXXFLAGS $($cflags_filter "$@")
 759 }
 760
 761 add_asflags(){
 762     append ASFLAGS $($asflags_filter "$@")
 763 }
 764
 765 add_ldflags(){
 766     append LDFLAGS $($ldflags_filter "$@")
 767 }
 768
 769 add_ldexeflags(){
 770     append LDEXEFLAGS $($ldflags_filter "$@")
 771 }
 772
 773 add_stripflags(){
 774     append ASMSTRIPFLAGS "$@"
 775 }
 776
 777 add_extralibs(){
 778     prepend extralibs $($ldflags_filter "$@")
 779 }
 780
 781 add_host_cppflags(){
 782     append host_cppflags "$@"
 783 }
 784
 785 add_host_cflags(){
 786     append host_cflags $($host_cflags_filter "$@")
 787 }
 788
 789 add_host_ldflags(){
 790     append host_ldflags $($host_ldflags_filter "$@")
 791 }
 792
 793 add_compat(){
 794     append compat_objs $1
 795     shift
 796     map 'add_cppflags -D$v' "$@"
 797 }
 798
 799 check_cmd(){
 800     log "$@"
 801     "$@" >> $logfile 2>&1
 802 }
 803
 804 check_stat(){
 805     log check_stat "$@"
 806     stat "$1" >> $logfile 2>&1
 807 }
 808
 809 cc_o(){
 810     eval printf '%s\\n' $CC_O
 811 }
 812
 813 cc_e(){
 814     eval printf '%s\\n' $CC_E
 815 }
 816
 817 check_cc(){
 818     log check_cc "$@"
 819     cat > $TMPC
 820     log_file $TMPC
 821     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 822 }
 823
 824 check_cxx(){
 825     log check_cxx "$@"
 826     cat > $TMPCPP
 827     log_file $TMPCPP
 828     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 829 }
 830
 831 check_oc(){
 832     log check_oc "$@"
 833     cat > $TMPM
 834     log_file $TMPM
 835     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 836 }
 837
 838 check_cpp(){
 839     log check_cpp "$@"
 840     cat > $TMPC
 841     log_file $TMPC
 842     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 843 }
 844
 845 as_o(){
 846     eval printf '%s\\n' $AS_O
 847 }
 848
 849 check_as(){
 850     log check_as "$@"
 851     cat > $TMPS
 852     log_file $TMPS
 853     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 854 }
 855
 856 check_inline_asm(){
 857     log check_inline_asm "$@"
 858     name="$1"
 859     code="$2"
 860     shift 2
 861     disable $name
 862     check_cc "$@" <<EOF && enable $name
 863 void foo(void){ __asm__ volatile($code); }
 864 EOF
 865 }
 866
 867 check_insn(){
 868     log check_insn "$@"
 869     check_inline_asm ${1}_inline "\"$2\""
 870     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 871 }
 872
 873 check_yasm(){
 874     log check_yasm "$@"
 875     echo "$1" > $TMPS
 876     log_file $TMPS
 877     shift 1
 878     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 879 }
 880
 881 ld_o(){
 882     eval printf '%s\\n' $LD_O
 883 }
 884
 885 check_ld(){
 886     log check_ld "$@"
 887     type=$1
 888     shift 1
 889     flags=$(filter_out '-l*|*.so' $@)
 890     libs=$(filter '-l*|*.so' $@)
 891     check_$type $($cflags_filter $flags) || return
 892     flags=$($ldflags_filter $flags)
 893     libs=$($ldflags_filter $libs)
 894     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 895 }
 896
 897 print_include(){
 898     hdr=$1
 899     test "${hdr%.h}" = "${hdr}" &&
 900         echo "#include $hdr"    ||
 901         echo "#include <$hdr>"
 902 }
 903
 904 check_code(){
 905     log check_code "$@"
 906     check=$1
 907     headers=$2
 908     code=$3
 909     shift 3
 910     {
 911         for hdr in $headers; do
 912             print_include $hdr
 913         done
 914         echo "int main(void) { $code; return 0; }"
 915     } | check_$check "$@"
 916 }
 917
 918 check_cppflags(){
 919     log check_cppflags "$@"
 920     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 921 int x;
 922 EOF
 923 }
 924
 925 test_cflags(){
 926     log test_cflags "$@"
 927     set -- $($cflags_filter "$@")
 928     check_cc "$@" <<EOF
 929 int x;
 930 EOF
 931 }
 932
 933 check_cflags(){
 934     log check_cflags "$@"
 935     test_cflags "$@" && add_cflags "$@"
 936 }
 937
 938 check_cxxflags(){
 939     log check_cxxflags "$@"
 940     set -- $($cflags_filter "$@")
 941     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 942 int x;
 943 EOF
 944 }
 945
 946 test_ldflags(){
 947     log test_ldflags "$@"
 948     check_ld "cc" "$@" <<EOF
 949 int main(void){ return 0; }
 950 EOF
 951 }
 952
 953 check_ldflags(){
 954     log check_ldflags "$@"
 955     test_ldflags "$@" && add_ldflags "$@"
 956 }
 957
 958 test_stripflags(){
 959     log test_stripflags "$@"
 960     # call check_cc to get a fresh TMPO
 961     check_cc <<EOF
 962 int main(void) { return 0; }
 963 EOF
 964     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 965 }
 966
 967 check_stripflags(){
 968     log check_stripflags "$@"
 969     test_stripflags "$@" && add_stripflags "$@"
 970 }
 971
 972 check_header(){
 973     log check_header "$@"
 974     header=$1
 975     shift
 976     disable_safe $header
 977     check_cpp "$@" <<EOF && enable_safe $header
 978 #include <$header>
 979 int x;
 980 EOF
 981 }
 982
 983 check_header_oc(){
 984     log check_header_oc "$@"
 985     rm -f -- "$TMPO"
 986     header=$1
 987     shift
 988     disable_safe $header
 989     {
 990        echo "#include <$header>"
 991        echo "int main(void) { return 0; }"
 992     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 993 }
 994
 995 check_func(){
 996     log check_func "$@"
 997     func=$1
 998     shift
 999     disable $func
1000     check_ld "cc" "$@" <<EOF && enable $func
1001 extern int $func();
1002 int main(void){ $func(); }
1003 EOF
1004 }
1005
1006 check_mathfunc(){
1007     log check_mathfunc "$@"
1008     func=$1
1009     narg=$2
1010     shift 2
1011     test $narg = 2 && args="f, g" || args="f"
1012     disable $func
1013     check_ld "cc" "$@" <<EOF && enable $func
1014 #include <math.h>
1015 float foo(float f, float g) { return $func($args); }
1016 int main(void){ return (int) foo; }
1017 EOF
1018 }
1019
1020 check_func_headers(){
1021     log check_func_headers "$@"
1022     headers=$1
1023     funcs=$2
1024     shift 2
1025     {
1026         for hdr in $headers; do
1027             print_include $hdr
1028         done
1029         for func in $funcs; do
1030             echo "long check_$func(void) { return (long) $func; }"
1031         done
1032         echo "int main(void) { return 0; }"
1033     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1034 }
1035
1036 check_class_headers_cpp(){
1037     log check_class_headers_cpp "$@"
1038     headers=$1
1039     classes=$2
1040     shift 2
1041     {
1042         for hdr in $headers; do
1043             echo "#include <$hdr>"
1044         done
1045         echo "int main(void) { "
1046         i=1
1047         for class in $classes; do
1048             echo "$class obj$i;"
1049             i=$(expr $i + 1)
1050         done
1051         echo "return 0; }"
1052     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1053 }
1054
1055 check_cpp_condition(){
1056     log check_cpp_condition "$@"
1057     header=$1
1058     condition=$2
1059     shift 2
1060     check_cpp "$@" <<EOF
1061 #include <$header>
1062 #if !($condition)
1063 #error "unsatisfied condition: $condition"
1064 #endif
1065 EOF
1066 }
1067
1068 check_lib(){
1069     log check_lib "$@"
1070     header="$1"
1071     func="$2"
1072     shift 2
1073     check_header $header && check_func $func "$@" && add_extralibs "$@"
1074 }
1075
1076 check_lib2(){
1077     log check_lib2 "$@"
1078     headers="$1"
1079     funcs="$2"
1080     shift 2
1081     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1082 }
1083
1084 check_lib_cpp(){
1085     log check_lib_cpp "$@"
1086     headers="$1"
1087     classes="$2"
1088     shift 2
1089     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1090 }
1091
1092 check_pkg_config(){
1093     log check_pkg_config "$@"
1094     pkgandversion="$1"
1095     pkg="${1%% *}"
1096     headers="$2"
1097     funcs="$3"
1098     shift 3
1099     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1100     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1101     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1102     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1103         set_safe ${pkg}_cflags $pkg_cflags   &&
1104         set_safe ${pkg}_libs   $pkg_libs
1105 }
1106
1107 check_exec(){
1108     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1109 }
1110
1111 check_exec_crash(){
1112     code=$(cat)
1113
1114     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1115     # are safe but may not be available everywhere.  Thus we use
1116     # raise(SIGTERM) instead.  The check is run in a subshell so we
1117     # can redirect the "Terminated" message from the shell.  SIGBUS
1118     # is not defined by standard C so it is used conditionally.
1119
1120     (check_exec "$@") >> $logfile 2>&1 <<EOF
1121 #include <signal.h>
1122 static void sighandler(int sig){
1123     raise(SIGTERM);
1124 }
1125 int foo(void){
1126     $code
1127 }
1128 int (*func_ptr)(void) = foo;
1129 int main(void){
1130     signal(SIGILL, sighandler);
1131     signal(SIGFPE, sighandler);
1132     signal(SIGSEGV, sighandler);
1133 #ifdef SIGBUS
1134     signal(SIGBUS, sighandler);
1135 #endif
1136     return func_ptr();
1137 }
1138 EOF
1139 }
1140
1141 check_type(){
1142     log check_type "$@"
1143     headers=$1
1144     type=$2
1145     shift 2
1146     disable_safe "$type"
1147     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1148 }
1149
1150 check_struct(){
1151     log check_struct "$@"
1152     headers=$1
1153     struct=$2
1154     member=$3
1155     shift 3
1156     disable_safe "${struct}_${member}"
1157     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1158         enable_safe "${struct}_${member}"
1159 }
1160
1161 check_builtin(){
1162     log check_builtin "$@"
1163     name=$1
1164     headers=$2
1165     builtin=$3
1166     shift 3
1167     disable "$name"
1168     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1169 }
1170
1171 check_compile_assert(){
1172     log check_compile_assert "$@"
1173     name=$1
1174     headers=$2
1175     condition=$3
1176     shift 3
1177     disable "$name"
1178     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1179 }
1180
1181 require(){
1182     name="$1"
1183     header="$2"
1184     func="$3"
1185     shift 3
1186     check_lib $header $func "$@" || die "ERROR: $name not found"
1187 }
1188
1189 require2(){
1190     name="$1"
1191     headers="$2"
1192     func="$3"
1193     shift 3
1194     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1195 }
1196
1197 require_cpp(){
1198     name="$1"
1199     headers="$2"
1200     classes="$3"
1201     shift 3
1202     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1203 }
1204
1205 require_pkg_config(){
1206     pkg="$1"
1207     check_pkg_config "$@" || die "ERROR: $pkg not found"
1208     add_cflags    $(get_safe ${pkg}_cflags)
1209     add_extralibs $(get_safe ${pkg}_libs)
1210 }
1211
1212 require_libfreetype(){
1213     log require_libfreetype "$@"
1214     pkg="freetype2"
1215     check_cmd $pkg_config --exists --print-errors $pkg \
1216       || die "ERROR: $pkg not found"
1217     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1218     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1219     {
1220         echo "#include <ft2build.h>"
1221         echo "#include FT_FREETYPE_H"
1222         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1223         echo "int main(void) { return 0; }"
1224     } | check_ld "cc" $pkg_cflags $pkg_libs \
1225       && set_safe ${pkg}_cflags $pkg_cflags \
1226       && set_safe ${pkg}_libs   $pkg_libs \
1227       || die "ERROR: $pkg not found"
1228     add_cflags    $(get_safe ${pkg}_cflags)
1229     add_extralibs $(get_safe ${pkg}_libs)
1230 }
1231
1232 hostcc_e(){
1233     eval printf '%s\\n' $HOSTCC_E
1234 }
1235
1236 hostcc_o(){
1237     eval printf '%s\\n' $HOSTCC_O
1238 }
1239
1240 check_host_cc(){
1241     log check_host_cc "$@"
1242     cat > $TMPC
1243     log_file $TMPC
1244     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1245 }
1246
1247 check_host_cpp(){
1248     log check_host_cpp "$@"
1249     cat > $TMPC
1250     log_file $TMPC
1251     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1252 }
1253
1254 check_host_cppflags(){
1255     log check_host_cppflags "$@"
1256     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1257 int x;
1258 EOF
1259 }
1260
1261 check_host_cflags(){
1262     log check_host_cflags "$@"
1263     set -- $($host_cflags_filter "$@")
1264     check_host_cc "$@" <<EOF && append host_cflags "$@"
1265 int x;
1266 EOF
1267 }
1268
1269 check_host_cpp_condition(){
1270     log check_host_cpp_condition "$@"
1271     header=$1
1272     condition=$2
1273     shift 2
1274     check_host_cpp "$@" <<EOF
1275 #include <$header>
1276 #if !($condition)
1277 #error "unsatisfied condition: $condition"
1278 #endif
1279 EOF
1280 }
1281
1282 apply(){
1283     file=$1
1284     shift
1285     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1286 }
1287
1288 cp_if_changed(){
1289     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1290     mkdir -p "$(dirname $2)"
1291     $cp_f "$1" "$2"
1292 }
1293
1294 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1295 # system-dependent things.
1296
1297 COMPONENT_LIST="
1298     bsfs
1299     decoders
1300     demuxers
1301     encoders
1302     filters
1303     hwaccels
1304     indevs
1305     muxers
1306     outdevs
1307     parsers
1308     protocols
1309 "
1310
1311 EXAMPLE_LIST="
1312     avio_reading_example
1313     decoding_encoding_example
1314     demuxing_decoding_example
1315     extract_mvs_example
1316     filter_audio_example
1317     filtering_audio_example
1318     filtering_video_example
1319     metadata_example
1320     muxing_example
1321     remuxing_example
1322     resampling_audio_example
1323     scaling_video_example
1324     transcode_aac_example
1325     transcoding_example
1326 "
1327
1328 EXTERNAL_LIBRARY_LIST="
1329     avisynth
1330     bzlib
1331     crystalhd
1332     decklink
1333     frei0r
1334     gnutls
1335     iconv
1336     ladspa
1337     libaacplus
1338     libass
1339     libbluray
1340     libbs2b
1341     libcaca
1342     libcdio
1343     libcelt
1344     libdc1394
1345     libfaac
1346     libfdk_aac
1347     libflite
1348     libfontconfig
1349     libfreetype
1350     libfribidi
1351     libgme
1352     libgsm
1353     libiec61883
1354     libilbc
1355     libmodplug
1356     libmp3lame
1357     libnut
1358     libopencore_amrnb
1359     libopencore_amrwb
1360     libopencv
1361     libopenjpeg
1362     libopus
1363     libpulse
1364     libquvi
1365     librtmp
1366     libschroedinger
1367     libshine
1368     libsmbclient
1369     libsoxr
1370     libspeex
1371     libssh
1372     libstagefright_h264
1373     libtheora
1374     libtwolame
1375     libutvideo
1376     libv4l2
1377     libvidstab
1378     libvo_aacenc
1379     libvo_amrwbenc
1380     libvorbis
1381     libvpx
1382     libwavpack
1383     libwebp
1384     libx264
1385     libx265
1386     libxavs
1387     libxcb
1388     libxcb_shm
1389     libxcb_xfixes
1390     libxvid
1391     libzmq
1392     libzvbi
1393     lzma
1394     openal
1395     opencl
1396     opengl
1397     openssl
1398     sdl
1399     x11grab
1400     xlib
1401     zlib
1402 "
1403
1404 DOCUMENT_LIST="
1405     doc
1406     htmlpages
1407     manpages
1408     podpages
1409     txtpages
1410 "
1411
1412 FEATURE_LIST="
1413     ftrapv
1414     gray
1415     hardcoded_tables
1416     runtime_cpudetect
1417     safe_bitstream_reader
1418     shared
1419     small
1420     static
1421     swscale_alpha
1422 "
1423
1424 HWACCEL_LIST="
1425     dxva2
1426     vaapi
1427     vda
1428     vdpau
1429     xvmc
1430 "
1431
1432 LIBRARY_LIST="
1433     avcodec
1434     avdevice
1435     avfilter
1436     avformat
1437     avresample
1438     avutil
1439     postproc
1440     swresample
1441     swscale
1442 "
1443
1444 LICENSE_LIST="
1445     gpl
1446     nonfree
1447     version3
1448 "
1449
1450 PROGRAM_LIST="
1451     ffplay
1452     ffprobe
1453     ffserver
1454     ffmpeg
1455 "
1456
1457 SUBSYSTEM_LIST="
1458     dct
1459     dwt
1460     error_resilience
1461     faan
1462     fast_unaligned
1463     fft
1464     lsp
1465     lzo
1466     mdct
1467     pixelutils
1468     network
1469     rdft
1470 "
1471
1472 CONFIG_LIST="
1473     $COMPONENT_LIST
1474     $DOCUMENT_LIST
1475     $EXAMPLE_LIST
1476     $EXTERNAL_LIBRARY_LIST
1477     $FEATURE_LIST
1478     $HWACCEL_LIST
1479     $LICENSE_LIST
1480     $LIBRARY_LIST
1481     $PROGRAM_LIST
1482     $SUBSYSTEM_LIST
1483     fontconfig
1484     incompatible_libav_abi
1485     memalign_hack
1486     memory_poisoning
1487     neon_clobber_test
1488     pic
1489     pod2man
1490     raise_major
1491     thumb
1492     xmm_clobber_test
1493 "
1494
1495 THREADS_LIST="
1496     pthreads
1497     os2threads
1498     w32threads
1499 "
1500
1501 ATOMICS_LIST="
1502     atomics_gcc
1503     atomics_suncc
1504     atomics_win32
1505 "
1506
1507 ARCH_LIST="
1508     aarch64
1509     alpha
1510     arm
1511     avr32
1512     avr32_ap
1513     avr32_uc
1514     bfin
1515     ia64
1516     m68k
1517     mips
1518     mips64
1519     parisc
1520     ppc
1521     ppc64
1522     s390
1523     sh4
1524     sparc
1525     sparc64
1526     tilegx
1527     tilepro
1528     tomi
1529     x86
1530     x86_32
1531     x86_64
1532 "
1533
1534 ARCH_EXT_LIST_ARM="
1535     armv5te
1536     armv6
1537     armv6t2
1538     armv8
1539     neon
1540     vfp
1541     vfpv3
1542     setend
1543 "
1544
1545 ARCH_EXT_LIST_MIPS="
1546     mipsfpu
1547     mips32r2
1548     mipsdspr1
1549     mipsdspr2
1550 "
1551
1552 ARCH_EXT_LIST_X86_SIMD="
1553     amd3dnow
1554     amd3dnowext
1555     avx
1556     avx2
1557     fma3
1558     fma4
1559     mmx
1560     mmxext
1561     sse
1562     sse2
1563     sse3
1564     sse4
1565     sse42
1566     ssse3
1567     xop
1568 "
1569
1570 ARCH_EXT_LIST_PPC="
1571     altivec
1572     dcbzl
1573     ldbrx
1574     ppc4xx
1575     vsx
1576 "
1577
1578 ARCH_EXT_LIST_X86="
1579     $ARCH_EXT_LIST_X86_SIMD
1580     cpunop
1581     i686
1582 "
1583
1584 ARCH_EXT_LIST="
1585     $ARCH_EXT_LIST_ARM
1586     $ARCH_EXT_LIST_PPC
1587     $ARCH_EXT_LIST_X86
1588     $ARCH_EXT_LIST_MIPS
1589     loongson
1590 "
1591
1592 ARCH_FEATURES="
1593     aligned_stack
1594     fast_64bit
1595     fast_clz
1596     fast_cmov
1597     local_aligned_8
1598     local_aligned_16
1599     local_aligned_32
1600     simd_align_16
1601 "
1602
1603 BUILTIN_LIST="
1604     atomic_cas_ptr
1605     atomic_compare_exchange
1606     machine_rw_barrier
1607     MemoryBarrier
1608     mm_empty
1609     rdtsc
1610     sarestart
1611     sync_val_compare_and_swap
1612 "
1613 HAVE_LIST_CMDLINE="
1614     inline_asm
1615     symver
1616     yasm
1617 "
1618
1619 HAVE_LIST_PUB="
1620     bigendian
1621     fast_unaligned
1622     incompatible_libav_abi
1623 "
1624
1625 HEADERS_LIST="
1626     alsa_asoundlib_h
1627     altivec_h
1628     arpa_inet_h
1629     asm_types_h
1630     cdio_paranoia_h
1631     cdio_paranoia_paranoia_h
1632     CL_cl_h
1633     dev_bktr_ioctl_bt848_h
1634     dev_bktr_ioctl_meteor_h
1635     dev_ic_bt8xx_h
1636     dev_video_bktr_ioctl_bt848_h
1637     dev_video_meteor_ioctl_meteor_h
1638     direct_h
1639     dlfcn_h
1640     dxva_h
1641     ES2_gl_h
1642     gsm_h
1643     io_h
1644     mach_mach_time_h
1645     machine_ioctl_bt848_h
1646     machine_ioctl_meteor_h
1647     malloc_h
1648     openjpeg_1_5_openjpeg_h
1649     OpenGL_gl3_h
1650     poll_h
1651     sndio_h
1652     soundcard_h
1653     sys_mman_h
1654     sys_param_h
1655     sys_resource_h
1656     sys_select_h
1657     sys_soundcard_h
1658     sys_time_h
1659     sys_un_h
1660     sys_videoio_h
1661     termios_h
1662     udplite_h
1663     unistd_h
1664     windows_h
1665     winsock2_h
1666 "
1667
1668 INTRINSICS_LIST="
1669     intrinsics_neon
1670 "
1671
1672 MATH_FUNCS="
1673     atanf
1674     atan2f
1675     cbrt
1676     cbrtf
1677     cosf
1678     exp2
1679     exp2f
1680     expf
1681     isinf
1682     isnan
1683     ldexpf
1684     llrint
1685     llrintf
1686     log2
1687     log2f
1688     log10f
1689     lrint
1690     lrintf
1691     powf
1692     rint
1693     round
1694     roundf
1695     sinf
1696     trunc
1697     truncf
1698 "
1699
1700 SYSTEM_FUNCS="
1701     access
1702     aligned_malloc
1703     clock_gettime
1704     closesocket
1705     CommandLineToArgvW
1706     CoTaskMemFree
1707     CryptGenRandom
1708     dlopen
1709     fcntl
1710     flt_lim
1711     fork
1712     getaddrinfo
1713     gethrtime
1714     getopt
1715     GetProcessAffinityMask
1716     GetProcessMemoryInfo
1717     GetProcessTimes
1718     getrusage
1719     getservbyport
1720     GetSystemTimeAsFileTime
1721     gettimeofday
1722     glob
1723     glXGetProcAddress
1724     gmtime_r
1725     inet_aton
1726     isatty
1727     jack_port_get_latency_range
1728     kbhit
1729     localtime_r
1730     lzo1x_999_compress
1731     mach_absolute_time
1732     MapViewOfFile
1733     memalign
1734     mkstemp
1735     mmap
1736     mprotect
1737     nanosleep
1738     PeekNamedPipe
1739     posix_memalign
1740     pthread_cancel
1741     sched_getaffinity
1742     SetConsoleTextAttribute
1743     setmode
1744     setrlimit
1745     Sleep
1746     strerror_r
1747     sysconf
1748     sysctl
1749     usleep
1750     VirtualAlloc
1751     wglGetProcAddress
1752 "
1753
1754 TOOLCHAIN_FEATURES="
1755     as_dn_directive
1756     as_func
1757     asm_mod_q
1758     attribute_may_alias
1759     attribute_packed
1760     ebp_available
1761     ebx_available
1762     gnu_as
1763     gnu_windres
1764     ibm_asm
1765     inline_asm_labels
1766     inline_asm_nonlocal_labels
1767     inline_asm_direct_symbol_refs
1768     pragma_deprecated
1769     rsync_contimeout
1770     symver_asm_label
1771     symver_gnu_asm
1772     vfp_args
1773     xform_asm
1774     xmm_clobbers
1775 "
1776
1777 TYPES_LIST="
1778     CONDITION_VARIABLE_Ptr
1779     socklen_t
1780     struct_addrinfo
1781     struct_group_source_req
1782     struct_ip_mreq_source
1783     struct_ipv6_mreq
1784     struct_pollfd
1785     struct_rusage_ru_maxrss
1786     struct_sctp_event_subscribe
1787     struct_sockaddr_in6
1788     struct_sockaddr_sa_len
1789     struct_sockaddr_storage
1790     struct_stat_st_mtim_tv_nsec
1791     struct_v4l2_frmivalenum_discrete
1792 "
1793
1794 HAVE_LIST="
1795     $ARCH_EXT_LIST
1796     $(add_suffix _external $ARCH_EXT_LIST)
1797     $(add_suffix _inline   $ARCH_EXT_LIST)
1798     $ARCH_FEATURES
1799     $ATOMICS_LIST
1800     $BUILTIN_LIST
1801     $HAVE_LIST_CMDLINE
1802     $HAVE_LIST_PUB
1803     $HEADERS_LIST
1804     $INTRINSICS_LIST
1805     $MATH_FUNCS
1806     $SYSTEM_FUNCS
1807     $THREADS_LIST
1808     $TOOLCHAIN_FEATURES
1809     $TYPES_LIST
1810     atomics_native
1811     dos_paths
1812     dxva2api_cobj
1813     dxva2_lib
1814     libc_msvcrt
1815     libdc1394_1
1816     libdc1394_2
1817     makeinfo
1818     makeinfo_html
1819     perl
1820     pod2man
1821     sdl
1822     texi2html
1823     threads
1824     vdpau_x11
1825     xlib
1826 "
1827
1828 # options emitted with CONFIG_ prefix but not available on the command line
1829 CONFIG_EXTRA="
1830     aandcttables
1831     ac3dsp
1832     audio_frame_queue
1833     audiodsp
1834     blockdsp
1835     bswapdsp
1836     cabac
1837     dvprofile
1838     exif
1839     faandct
1840     faanidct
1841     fdctdsp
1842     frame_thread_encoder
1843     gcrypt
1844     golomb
1845     gplv3
1846     h263dsp
1847     h264chroma
1848     h264dsp
1849     h264pred
1850     h264qpel
1851     hpeldsp
1852     huffman
1853     huffyuvdsp
1854     huffyuvencdsp
1855     idctdsp
1856     iirfilter
1857     intrax8
1858     lgplv3
1859     llauddsp
1860     llviddsp
1861     lpc
1862     me_cmp
1863     mpeg_er
1864     mpegaudio
1865     mpegaudiodsp
1866     mpegvideo
1867     mpegvideoenc
1868     nettle
1869     pixblockdsp
1870     qpeldsp
1871     rangecoder
1872     riffdec
1873     riffenc
1874     rtpdec
1875     rtpenc_chain
1876     sinewin
1877     startcode
1878     tpeldsp
1879     videodsp
1880     vp3dsp
1881     wma_freqs
1882 "
1883
1884 CMDLINE_SELECT="
1885     $ARCH_EXT_LIST
1886     $CONFIG_LIST
1887     $HAVE_LIST_CMDLINE
1888     $THREADS_LIST
1889     asm
1890     cross_compile
1891     debug
1892     extra_warnings
1893     logging
1894     lto
1895     optimizations
1896     rpath
1897     stripping
1898 "
1899
1900 PATHS_LIST="
1901     bindir
1902     datadir
1903     docdir
1904     incdir
1905     libdir
1906     mandir
1907     prefix
1908     shlibdir
1909 "
1910
1911 CMDLINE_SET="
1912     $PATHS_LIST
1913     ar
1914     arch
1915     as
1916     assert_level
1917     build_suffix
1918     cc
1919     cpu
1920     cross_prefix
1921     cxx
1922     dep_cc
1923     doxygen
1924     extra_version
1925     gas
1926     host_cc
1927     host_cflags
1928     host_ld
1929     host_ldflags
1930     host_libs
1931     host_os
1932     install
1933     ld
1934     logfile
1935     malloc_prefix
1936     nm
1937     optflags
1938     pkg_config
1939     pkg_config_flags
1940     progs_suffix
1941     random_seed
1942     ranlib
1943     samples
1944     strip
1945     sws_max_filter_size
1946     sysinclude
1947     sysroot
1948     target_exec
1949     target_os
1950     target_path
1951     target_samples
1952     tempprefix
1953     toolchain
1954     valgrind
1955     yasmexe
1956 "
1957
1958 CMDLINE_APPEND="
1959     extra_cflags
1960     extra_cxxflags
1961     host_cppflags
1962 "
1963
1964 # code dependency declarations
1965
1966 # architecture extensions
1967
1968 armv5te_deps="arm"
1969 armv6_deps="arm"
1970 armv6t2_deps="arm"
1971 armv8_deps="aarch64"
1972 neon_deps_any="aarch64 arm"
1973 intrinsics_neon_deps="neon"
1974 vfp_deps_any="aarch64 arm"
1975 vfpv3_deps="vfp"
1976 setend_deps="arm"
1977
1978 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1979
1980 mipsfpu_deps="mips"
1981 mips32r2_deps="mips"
1982 mipsdspr1_deps="mips"
1983 mipsdspr2_deps="mips"
1984
1985 altivec_deps="ppc"
1986 ppc4xx_deps="ppc"
1987 vsx_deps="ppc"
1988
1989 cpunop_deps="i686"
1990 x86_64_select="i686"
1991 x86_64_suggest="fast_cmov"
1992
1993 amd3dnow_deps="mmx"
1994 amd3dnowext_deps="amd3dnow"
1995 i686_deps="x86"
1996 mmx_deps="x86"
1997 mmxext_deps="mmx"
1998 sse_deps="mmxext"
1999 sse2_deps="sse"
2000 sse3_deps="sse2"
2001 ssse3_deps="sse3"
2002 sse4_deps="ssse3"
2003 sse42_deps="sse4"
2004 avx_deps="sse42"
2005 xop_deps="avx"
2006 fma3_deps="avx"
2007 fma4_deps="avx"
2008 avx2_deps="avx"
2009
2010 mmx_external_deps="yasm"
2011 mmx_inline_deps="inline_asm"
2012 mmx_suggest="mmx_external mmx_inline"
2013
2014 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2015     eval dep=\$${ext}_deps
2016     eval ${ext}_external_deps='"${dep}_external"'
2017     eval ${ext}_inline_deps='"${dep}_inline"'
2018     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2019 done
2020
2021 aligned_stack_if_any="aarch64 ppc x86"
2022 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2023 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2024 fast_unaligned_if_any="aarch64 ppc x86"
2025 simd_align_16_if_any="altivec neon sse"
2026
2027 # system capabilities
2028
2029 symver_if_any="symver_asm_label symver_gnu_asm"
2030
2031 # threading support
2032 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2033 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2034 atomics_win32_if="MemoryBarrier"
2035 atomics_native_if_any="$ATOMICS_LIST"
2036 w32threads_deps="atomics_native"
2037 threads_if_any="$THREADS_LIST"
2038
2039 # subsystems
2040 dct_select="rdft"
2041 error_resilience_select="me_cmp"
2042 faandct_deps="faan fdctdsp"
2043 faanidct_deps="faan idctdsp"
2044 frame_thread_encoder_deps="encoders threads"
2045 intrax8_select="error_resilience"
2046 mdct_select="fft"
2047 rdft_select="fft"
2048 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2049 mpeg_er_select="error_resilience"
2050 mpegaudio_select="mpegaudiodsp"
2051 mpegaudiodsp_select="dct"
2052 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2053 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2054
2055 # decoders / encoders
2056 aac_decoder_select="mdct sinewin"
2057 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2058 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2059 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2060 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2061 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2062 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2063 aic_decoder_select="golomb idctdsp"
2064 alac_encoder_select="lpc"
2065 als_decoder_select="bswapdsp"
2066 amrnb_decoder_select="lsp"
2067 amrwb_decoder_select="lsp"
2068 amv_decoder_select="sp5x_decoder exif"
2069 amv_encoder_select="aandcttables mpegvideoenc"
2070 ape_decoder_select="bswapdsp llauddsp"
2071 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2072 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2073 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2074 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2075 atrac1_decoder_select="mdct sinewin"
2076 atrac3_decoder_select="mdct"
2077 atrac3p_decoder_select="mdct sinewin"
2078 avrn_decoder_select="exif"
2079 bink_decoder_select="blockdsp hpeldsp"
2080 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2081 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2082 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2083 cllc_decoder_select="bswapdsp"
2084 comfortnoise_encoder_select="lpc"
2085 cook_decoder_select="audiodsp mdct sinewin"
2086 cscd_decoder_select="lzo"
2087 cscd_decoder_suggest="zlib"
2088 dca_decoder_select="mdct"
2089 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2090 dnxhd_decoder_select="blockdsp idctdsp"
2091 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2092 dvvideo_decoder_select="dvprofile idctdsp"
2093 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2094 dxa_decoder_select="zlib"
2095 eac3_decoder_select="ac3_decoder"
2096 eac3_encoder_select="ac3_encoder"
2097 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2098 eatgq_decoder_select="aandcttables"
2099 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2100 exr_decoder_select="zlib"
2101 ffv1_decoder_select="golomb rangecoder"
2102 ffv1_encoder_select="rangecoder"
2103 ffvhuff_decoder_select="huffyuv_decoder"
2104 ffvhuff_encoder_select="huffyuv_encoder"
2105 fic_decoder_select="golomb"
2106 flac_decoder_select="golomb"
2107 flac_encoder_select="bswapdsp golomb lpc"
2108 flashsv_decoder_select="zlib"
2109 flashsv_encoder_select="zlib"
2110 flashsv2_encoder_select="zlib"
2111 flashsv2_decoder_select="zlib"
2112 flv_decoder_select="h263_decoder"
2113 flv_encoder_select="h263_encoder"
2114 fourxm_decoder_select="blockdsp bswapdsp"
2115 fraps_decoder_select="bswapdsp huffman"
2116 g2m_decoder_select="blockdsp idctdsp zlib"
2117 g729_decoder_select="audiodsp"
2118 h261_decoder_select="mpeg_er mpegvideo"
2119 h261_encoder_select="aandcttables mpegvideoenc"
2120 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2121 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2122 h263i_decoder_select="h263_decoder"
2123 h263p_encoder_select="h263_encoder"
2124 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2125 h264_decoder_suggest="error_resilience"
2126 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2127 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2128 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2129 iac_decoder_select="imc_decoder"
2130 imc_decoder_select="bswapdsp fft mdct sinewin"
2131 indeo3_decoder_select="hpeldsp"
2132 interplay_video_decoder_select="hpeldsp"
2133 jpegls_decoder_select="golomb mjpeg_decoder"
2134 jpegls_encoder_select="golomb"
2135 jv_decoder_select="blockdsp"
2136 lagarith_decoder_select="huffyuvdsp"
2137 ljpeg_encoder_select="aandcttables idctdsp"
2138 loco_decoder_select="golomb"
2139 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2140 metasound_decoder_select="lsp mdct sinewin"
2141 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2142 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2143 mjpeg_encoder_select="aandcttables mpegvideoenc"
2144 mjpegb_decoder_select="mjpeg_decoder"
2145 mlp_decoder_select="mlp_parser"
2146 motionpixels_decoder_select="bswapdsp"
2147 mp1_decoder_select="mpegaudio"
2148 mp1float_decoder_select="mpegaudio"
2149 mp2_decoder_select="mpegaudio"
2150 mp2float_decoder_select="mpegaudio"
2151 mp3_decoder_select="mpegaudio"
2152 mp3adu_decoder_select="mpegaudio"
2153 mp3adufloat_decoder_select="mpegaudio"
2154 mp3float_decoder_select="mpegaudio"
2155 mp3on4_decoder_select="mpegaudio"
2156 mp3on4float_decoder_select="mpegaudio"
2157 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2158 mpc8_decoder_select="mpegaudiodsp"
2159 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2160 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2161 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2162 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2163 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2164 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2165 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2166 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2167 mpeg4_encoder_select="h263_encoder"
2168 msmpeg4v1_decoder_select="h263_decoder"
2169 msmpeg4v2_decoder_select="h263_decoder"
2170 msmpeg4v2_encoder_select="h263_encoder"
2171 msmpeg4v3_decoder_select="h263_decoder"
2172 msmpeg4v3_encoder_select="h263_encoder"
2173 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2174 mxpeg_decoder_select="mjpeg_decoder"
2175 nellymoser_decoder_select="mdct sinewin"
2176 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2177 nuv_decoder_select="idctdsp lzo"
2178 on2avc_decoder_select="mdct"
2179 opus_decoder_deps="swresample"
2180 png_decoder_select="zlib"
2181 png_encoder_select="huffyuvencdsp zlib"
2182 prores_decoder_select="blockdsp idctdsp"
2183 prores_encoder_select="fdctdsp"
2184 qcelp_decoder_select="lsp"
2185 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2186 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2187 ra_144_decoder_select="audiodsp"
2188 ralf_decoder_select="golomb"
2189 rawvideo_decoder_select="bswapdsp"
2190 rtjpeg_decoder_select="me_cmp"
2191 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2192 rv10_encoder_select="h263_encoder"
2193 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2194 rv20_encoder_select="h263_encoder"
2195 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2196 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2197 shorten_decoder_select="golomb"
2198 sipr_decoder_select="lsp"
2199 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2200 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2201 sonic_decoder_select="golomb rangecoder"
2202 sonic_encoder_select="golomb rangecoder"
2203 sonic_ls_encoder_select="golomb rangecoder"
2204 sp5x_decoder_select="mjpeg_decoder"
2205 svq1_decoder_select="hpeldsp"
2206 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2207 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2208 svq3_decoder_suggest="zlib"
2209 tak_decoder_select="audiodsp"
2210 theora_decoder_select="vp3_decoder"
2211 thp_decoder_select="mjpeg_decoder"
2212 tiff_decoder_suggest="zlib lzma"
2213 tiff_encoder_suggest="zlib"
2214 truehd_decoder_select="mlp_parser"
2215 truemotion2_decoder_select="bswapdsp"
2216 truespeech_decoder_select="bswapdsp"
2217 tscc_decoder_select="zlib"
2218 twinvq_decoder_select="mdct lsp sinewin"
2219 utvideo_decoder_select="bswapdsp"
2220 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2221 vble_decoder_select="huffyuvdsp"
2222 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2223 vc1image_decoder_select="vc1_decoder"
2224 vorbis_decoder_select="mdct"
2225 vorbis_encoder_select="mdct"
2226 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2227 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2228 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2229 vp6a_decoder_select="vp6_decoder"
2230 vp6f_decoder_select="vp6_decoder"
2231 vp7_decoder_select="h264pred videodsp"
2232 vp8_decoder_select="h264pred videodsp"
2233 vp9_decoder_select="videodsp vp9_parser"
2234 webp_decoder_select="vp8_decoder"
2235 wmalossless_decoder_select="llauddsp"
2236 wmapro_decoder_select="mdct sinewin wma_freqs"
2237 wmav1_decoder_select="mdct sinewin wma_freqs"
2238 wmav1_encoder_select="mdct sinewin wma_freqs"
2239 wmav2_decoder_select="mdct sinewin wma_freqs"
2240 wmav2_encoder_select="mdct sinewin wma_freqs"
2241 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2242 wmv1_decoder_select="h263_decoder"
2243 wmv1_encoder_select="h263_encoder"
2244 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2245 wmv2_encoder_select="h263_encoder"
2246 wmv3_decoder_select="vc1_decoder"
2247 wmv3image_decoder_select="wmv3_decoder"
2248 zerocodec_decoder_select="zlib"
2249 zlib_decoder_select="zlib"
2250 zlib_encoder_select="zlib"
2251 zmbv_decoder_select="zlib"
2252 zmbv_encoder_select="zlib"
2253
2254 # hardware accelerators
2255 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2256 dxva2_deps="dxva2api_h"
2257 vaapi_deps="va_va_h"
2258 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2259 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2260 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2261 xvmc_deps="X11_extensions_XvMClib_h"
2262
2263 h263_vaapi_hwaccel_deps="vaapi"
2264 h263_vaapi_hwaccel_select="h263_decoder"
2265 h263_vdpau_hwaccel_deps="vdpau"
2266 h263_vdpau_hwaccel_select="h263_decoder"
2267 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2268 h264_dxva2_hwaccel_deps="dxva2"
2269 h264_dxva2_hwaccel_select="h264_decoder"
2270 h264_vaapi_hwaccel_deps="vaapi"
2271 h264_vaapi_hwaccel_select="h264_decoder"
2272 h264_vda_decoder_deps="vda"
2273 h264_vda_decoder_select="h264_decoder"
2274 h264_vda_hwaccel_deps="vda"
2275 h264_vda_hwaccel_select="h264_decoder"
2276 h264_vda_old_hwaccel_deps="vda"
2277 h264_vda_old_hwaccel_select="h264_decoder"
2278 h264_vdpau_decoder_deps="vdpau"
2279 h264_vdpau_decoder_select="h264_decoder"
2280 h264_vdpau_hwaccel_deps="vdpau"
2281 h264_vdpau_hwaccel_select="h264_decoder"
2282 mpeg_vdpau_decoder_deps="vdpau"
2283 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2284 mpeg_xvmc_hwaccel_deps="xvmc"
2285 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2286 mpeg1_vdpau_decoder_deps="vdpau"
2287 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2288 mpeg1_vdpau_hwaccel_deps="vdpau"
2289 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2290 mpeg1_xvmc_hwaccel_deps="xvmc"
2291 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2292 mpeg2_crystalhd_decoder_select="crystalhd"
2293 mpeg2_dxva2_hwaccel_deps="dxva2"
2294 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2295 mpeg2_vaapi_hwaccel_deps="vaapi"
2296 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2297 mpeg2_vdpau_hwaccel_deps="vdpau"
2298 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2299 mpeg2_xvmc_hwaccel_deps="xvmc"
2300 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2301 mpeg4_crystalhd_decoder_select="crystalhd"
2302 mpeg4_vaapi_hwaccel_deps="vaapi"
2303 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2304 mpeg4_vdpau_decoder_deps="vdpau"
2305 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2306 mpeg4_vdpau_hwaccel_deps="vdpau"
2307 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2308 msmpeg4_crystalhd_decoder_select="crystalhd"
2309 vc1_crystalhd_decoder_select="crystalhd"
2310 vc1_dxva2_hwaccel_deps="dxva2"
2311 vc1_dxva2_hwaccel_select="vc1_decoder"
2312 vc1_vaapi_hwaccel_deps="vaapi"
2313 vc1_vaapi_hwaccel_select="vc1_decoder"
2314 vc1_vdpau_decoder_deps="vdpau"
2315 vc1_vdpau_decoder_select="vc1_decoder"
2316 vc1_vdpau_hwaccel_deps="vdpau"
2317 vc1_vdpau_hwaccel_select="vc1_decoder"
2318 wmv3_crystalhd_decoder_select="crystalhd"
2319 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2320 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2321 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2322 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2323
2324 # parsers
2325 h264_parser_select="h264_decoder"
2326 hevc_parser_select="hevc_decoder"
2327 mpegvideo_parser_select="mpegvideo"
2328 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2329 vc1_parser_select="mpegvideo startcode vc1_decoder"
2330
2331 # external libraries
2332 libaacplus_encoder_deps="libaacplus"
2333 libcelt_decoder_deps="libcelt"
2334 libfaac_encoder_deps="libfaac"
2335 libfaac_encoder_select="audio_frame_queue"
2336 libfdk_aac_decoder_deps="libfdk_aac"
2337 libfdk_aac_encoder_deps="libfdk_aac"
2338 libfdk_aac_encoder_select="audio_frame_queue"
2339 libgme_demuxer_deps="libgme"
2340 libgsm_decoder_deps="libgsm"
2341 libgsm_encoder_deps="libgsm"
2342 libgsm_ms_decoder_deps="libgsm"
2343 libgsm_ms_encoder_deps="libgsm"
2344 libilbc_decoder_deps="libilbc"
2345 libilbc_encoder_deps="libilbc"
2346 libmodplug_demuxer_deps="libmodplug"
2347 libmp3lame_encoder_deps="libmp3lame"
2348 libmp3lame_encoder_select="audio_frame_queue"
2349 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2350 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2351 libopencore_amrnb_encoder_select="audio_frame_queue"
2352 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2353 libopenjpeg_decoder_deps="libopenjpeg"
2354 libopenjpeg_encoder_deps="libopenjpeg"
2355 libopus_decoder_deps="libopus"
2356 libopus_encoder_deps="libopus"
2357 libopus_encoder_select="audio_frame_queue"
2358 libquvi_demuxer_deps="libquvi"
2359 libschroedinger_decoder_deps="libschroedinger"
2360 libschroedinger_encoder_deps="libschroedinger"
2361 libshine_encoder_deps="libshine"
2362 libshine_encoder_select="audio_frame_queue"
2363 libspeex_decoder_deps="libspeex"
2364 libspeex_encoder_deps="libspeex"
2365 libspeex_encoder_select="audio_frame_queue"
2366 libstagefright_h264_decoder_deps="libstagefright_h264"
2367 libtheora_encoder_deps="libtheora"
2368 libtwolame_encoder_deps="libtwolame"
2369 libvo_aacenc_encoder_deps="libvo_aacenc"
2370 libvo_aacenc_encoder_select="audio_frame_queue"
2371 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2372 libvorbis_decoder_deps="libvorbis"
2373 libvorbis_encoder_deps="libvorbis"
2374 libvorbis_encoder_select="audio_frame_queue"
2375 libvpx_vp8_decoder_deps="libvpx"
2376 libvpx_vp8_encoder_deps="libvpx"
2377 libvpx_vp9_decoder_deps="libvpx"
2378 libvpx_vp9_encoder_deps="libvpx"
2379 libwavpack_encoder_deps="libwavpack"
2380 libwebp_encoder_deps="libwebp"
2381 libx264_encoder_deps="libx264"
2382 libx264rgb_encoder_deps="libx264"
2383 libx265_encoder_deps="libx265"
2384 libxavs_encoder_deps="libxavs"
2385 libxvid_encoder_deps="libxvid"
2386 libutvideo_decoder_deps="libutvideo"
2387 libutvideo_encoder_deps="libutvideo"
2388 libzvbi_teletext_decoder_deps="libzvbi"
2389
2390 # demuxers / muxers
2391 ac3_demuxer_select="ac3_parser"
2392 asf_demuxer_select="riffdec"
2393 asf_muxer_select="riffenc"
2394 asf_stream_muxer_select="asf_muxer"
2395 avi_demuxer_select="riffdec exif"
2396 avi_muxer_select="riffenc"
2397 avisynth_demuxer_deps="avisynth"
2398 avisynth_demuxer_select="riffdec"
2399 caf_demuxer_select="riffdec"
2400 dirac_demuxer_select="dirac_parser"
2401 dts_demuxer_select="dca_parser"
2402 dtshd_demuxer_select="dca_parser"
2403 dv_demuxer_select="dvprofile"
2404 dv_muxer_select="dvprofile"
2405 dxa_demuxer_select="riffdec"
2406 eac3_demuxer_select="ac3_parser"
2407 f4v_muxer_select="mov_muxer"
2408 flac_demuxer_select="flac_parser"
2409 hds_muxer_select="flv_muxer"
2410 hls_muxer_select="mpegts_muxer"
2411 image2_alias_pix_demuxer_select="image2_demuxer"
2412 image2_brender_pix_demuxer_select="image2_demuxer"
2413 ipod_muxer_select="mov_muxer"
2414 ismv_muxer_select="mov_muxer"
2415 libnut_demuxer_deps="libnut"
2416 libnut_muxer_deps="libnut"
2417 matroska_audio_muxer_select="matroska_muxer"
2418 matroska_demuxer_select="riffdec"
2419 matroska_demuxer_suggest="bzlib lzo zlib"
2420 matroska_muxer_select="riffenc"
2421 mmf_muxer_select="riffenc"
2422 mov_demuxer_select="riffdec"
2423 mov_demuxer_suggest="zlib"
2424 mov_muxer_select="riffenc rtpenc_chain ac3_parser"
2425 mp3_demuxer_select="mpegaudio_parser"
2426 mp4_muxer_select="mov_muxer"
2427 mpegts_muxer_select="adts_muxer latm_muxer"
2428 mpegtsraw_demuxer_select="mpegts_demuxer"
2429 mxf_d10_muxer_select="mxf_muxer"
2430 nut_muxer_select="riffenc"
2431 nuv_demuxer_select="riffdec"
2432 oga_muxer_select="ogg_muxer"
2433 ogg_demuxer_select="golomb"
2434 opus_muxer_select="ogg_muxer"
2435 psp_muxer_select="mov_muxer"
2436 rtp_demuxer_select="sdp_demuxer"
2437 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2438 rtsp_demuxer_select="http_protocol rtpdec"
2439 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2440 sap_demuxer_select="sdp_demuxer"
2441 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2442 sdp_demuxer_select="rtpdec"
2443 smoothstreaming_muxer_select="ismv_muxer"
2444 spdif_muxer_select="aac_parser"
2445 spx_muxer_select="ogg_muxer"
2446 tak_demuxer_select="tak_parser"
2447 tg2_muxer_select="mov_muxer"
2448 tgp_muxer_select="mov_muxer"
2449 vobsub_demuxer_select="mpegps_demuxer"
2450 w64_demuxer_select="wav_demuxer"
2451 w64_muxer_select="wav_muxer"
2452 wav_demuxer_select="riffdec"
2453 wav_muxer_select="riffenc"
2454 webm_muxer_select="riffenc"
2455 wtv_demuxer_select="riffdec"
2456 wtv_muxer_select="riffenc"
2457 xmv_demuxer_select="riffdec"
2458 xwma_demuxer_select="riffdec"
2459
2460 # indevs / outdevs
2461 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2462 alsa_outdev_deps="alsa_asoundlib_h"
2463 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia -framework CoreGraphics"
2464 avfoundation_indev_select="avfoundation"
2465 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2466 caca_outdev_deps="libcaca"
2467 decklink_outdev_deps="decklink pthreads"
2468 decklink_outdev_extralibs="-lstdc++"
2469 decklink_indev_deps="decklink pthreads"
2470 decklink_indev_extralibs="-lstdc++"
2471 dshow_indev_deps="IBaseFilter"
2472 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2473 dv1394_indev_deps="dv1394"
2474 dv1394_indev_select="dv_demuxer"
2475 fbdev_indev_deps="linux_fb_h"
2476 fbdev_outdev_deps="linux_fb_h"
2477 gdigrab_indev_deps="CreateDIBSection"
2478 gdigrab_indev_extralibs="-lgdi32"
2479 gdigrab_indev_select="bmp_decoder"
2480 iec61883_indev_deps="libiec61883"
2481 jack_indev_deps="jack_jack_h sem_timedwait"
2482 lavfi_indev_deps="avfilter"
2483 libcdio_indev_deps="libcdio"
2484 libdc1394_indev_deps="libdc1394"
2485 libv4l2_indev_deps="libv4l2"
2486 openal_indev_deps="openal"
2487 opengl_outdev_deps="opengl"
2488 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2489 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2490 pulse_indev_deps="libpulse"
2491 pulse_outdev_deps="libpulse"
2492 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2493 qtkit_indev_select="qtkit"
2494 sdl_outdev_deps="sdl"
2495 sndio_indev_deps="sndio_h"
2496 sndio_outdev_deps="sndio_h"
2497 v4l_indev_deps="linux_videodev_h"
2498 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2499 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2500 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2501 vfwcap_indev_extralibs="-lavicap32"
2502 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2503 xv_outdev_extralibs="-lXv -lX11 -lXext"
2504 x11grab_indev_deps="x11grab"
2505 x11grab_xcb_indev_deps="libxcb"
2506
2507 # protocols
2508 bluray_protocol_deps="libbluray"
2509 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2510 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2511 ffrtmpcrypt_protocol_select="tcp_protocol"
2512 ffrtmphttp_protocol_deps="!librtmp_protocol"
2513 ffrtmphttp_protocol_select="http_protocol"
2514 ftp_protocol_select="tcp_protocol"
2515 gopher_protocol_select="network"
2516 http_protocol_select="tcp_protocol"
2517 httpproxy_protocol_select="tcp_protocol"
2518 https_protocol_select="tls_protocol"
2519 icecast_protocol_select="http_protocol"
2520 librtmp_protocol_deps="librtmp"
2521 librtmpe_protocol_deps="librtmp"
2522 librtmps_protocol_deps="librtmp"
2523 librtmpt_protocol_deps="librtmp"
2524 librtmpte_protocol_deps="librtmp"
2525 libsmbclient_protocol_deps="libsmbclient gplv3"
2526 libssh_protocol_deps="libssh"
2527 mmsh_protocol_select="http_protocol"
2528 mmst_protocol_select="network"
2529 rtmp_protocol_deps="!librtmp_protocol"
2530 rtmp_protocol_select="tcp_protocol"
2531 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2532 rtmps_protocol_deps="!librtmp_protocol"
2533 rtmps_protocol_select="tls_protocol"
2534 rtmpt_protocol_select="ffrtmphttp_protocol"
2535 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2536 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2537 rtp_protocol_select="udp_protocol"
2538 sctp_protocol_deps="struct_sctp_event_subscribe"
2539 sctp_protocol_select="network"
2540 srtp_protocol_select="rtp_protocol"
2541 tcp_protocol_select="network"
2542 tls_protocol_deps_any="openssl gnutls"
2543 tls_protocol_select="tcp_protocol"
2544 udp_protocol_select="network"
2545 udplite_protocol_select="network"
2546 unix_protocol_deps="sys_un_h"
2547 unix_protocol_select="network"
2548
2549 # filters
2550 amovie_filter_deps="avcodec avformat"
2551 aresample_filter_deps="swresample"
2552 ass_filter_deps="libass"
2553 asyncts_filter_deps="avresample"
2554 atempo_filter_deps="avcodec"
2555 atempo_filter_select="rdft"
2556 azmq_filter_deps="libzmq"
2557 blackframe_filter_deps="gpl"
2558 boxblur_filter_deps="gpl"
2559 bs2b_filter_deps="libbs2b"
2560 colormatrix_filter_deps="gpl"
2561 cropdetect_filter_deps="gpl"
2562 delogo_filter_deps="gpl"
2563 deshake_filter_select="pixelutils"
2564 drawtext_filter_deps="libfreetype"
2565 ebur128_filter_deps="gpl"
2566 flite_filter_deps="libflite"
2567 frei0r_filter_deps="frei0r dlopen"
2568 frei0r_filter_extralibs='$ldl'
2569 frei0r_src_filter_deps="frei0r dlopen"
2570 frei0r_src_filter_extralibs='$ldl'
2571 geq_filter_deps="gpl"
2572 histeq_filter_deps="gpl"
2573 hqdn3d_filter_deps="gpl"
2574 interlace_filter_deps="gpl"
2575 kerndeint_filter_deps="gpl"
2576 ladspa_filter_deps="ladspa dlopen"
2577 ladspa_filter_extralibs='$ldl'
2578 mcdeint_filter_deps="avcodec gpl"
2579 movie_filter_deps="avcodec avformat"
2580 mp_filter_deps="gpl avcodec swscale inline_asm"
2581 mpdecimate_filter_deps="gpl"
2582 mpdecimate_filter_select="pixelutils"
2583 mptestsrc_filter_deps="gpl"
2584 negate_filter_deps="lut_filter"
2585 perspective_filter_deps="gpl"
2586 ocv_filter_deps="libopencv"
2587 owdenoise_filter_deps="gpl"
2588 pan_filter_deps="swresample"
2589 phase_filter_deps="gpl"
2590 pp_filter_deps="gpl postproc"
2591 pullup_filter_deps="gpl"
2592 removelogo_filter_deps="avcodec avformat swscale"
2593 resample_filter_deps="avresample"
2594 sab_filter_deps="gpl swscale"
2595 scale_filter_deps="swscale"
2596 select_filter_select="pixelutils"
2597 smartblur_filter_deps="gpl swscale"
2598 showspectrum_filter_deps="avcodec"
2599 showspectrum_filter_select="rdft"
2600 spp_filter_deps="gpl avcodec"
2601 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2602 stereo3d_filter_deps="gpl"
2603 subtitles_filter_deps="avformat avcodec libass"
2604 super2xsai_filter_deps="gpl"
2605 tinterlace_filter_deps="gpl"
2606 vidstabdetect_filter_deps="libvidstab"
2607 vidstabtransform_filter_deps="libvidstab"
2608 pixfmts_super2xsai_test_deps="super2xsai_filter"
2609 tinterlace_merge_test_deps="tinterlace_filter"
2610 tinterlace_pad_test_deps="tinterlace_filter"
2611 xbr_filter_deps="gpl"
2612 zmq_filter_deps="libzmq"
2613 zoompan_filter_deps="swscale"
2614
2615 # examples
2616 avio_reading="avformat avcodec avutil"
2617 avcodec_example_deps="avcodec avutil"
2618 decoding_encoding_example_deps="avcodec avformat avutil"
2619 demuxing_decoding_example_deps="avcodec avformat avutil"
2620 extract_mvs_example_deps="avcodec avformat avutil"
2621 filter_audio_example_deps="avfilter avutil"
2622 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2623 filtering_video_example_deps="avfilter avcodec avformat avutil"
2624 metadata_example_deps="avformat avutil"
2625 muxing_example_deps="avcodec avformat avutil swscale"
2626 remuxing_example_deps="avcodec avformat avutil"
2627 resampling_audio_example_deps="avutil swresample"
2628 scaling_video_example_deps="avutil swscale"
2629 transcode_aac_example_deps="avcodec avformat swresample"
2630 transcoding_example_deps="avfilter avcodec avformat avutil"
2631
2632 # libraries, in linking order
2633 avcodec_deps="avutil"
2634 avdevice_deps="avformat avcodec avutil"
2635 avfilter_deps="avutil"
2636 avformat_deps="avcodec avutil"
2637 avresample_deps="avutil"
2638 postproc_deps="avutil gpl"
2639 swresample_deps="avutil"
2640 swscale_deps="avutil"
2641
2642 # programs
2643 ffmpeg_deps="avcodec avfilter avformat swresample"
2644 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2645                null_filter
2646                setpts_filter trim_filter"
2647 ffplay_deps="avcodec avformat swscale swresample sdl"
2648 ffplay_libs='$sdl_libs'
2649 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2650 ffprobe_deps="avcodec avformat"
2651 ffserver_deps="avformat fork sarestart"
2652 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2653
2654 # documentation
2655 podpages_deps="perl"
2656 manpages_deps="perl pod2man"
2657 htmlpages_deps="perl"
2658 htmlpages_deps_any="makeinfo_html texi2html"
2659 txtpages_deps="perl makeinfo"
2660 doc_deps_any="manpages htmlpages podpages txtpages"
2661
2662 # default parameters
2663
2664 logfile="config.log"
2665
2666 # installation paths
2667 prefix_default="/usr/local"
2668 bindir_default='${prefix}/bin'
2669 datadir_default='${prefix}/share/ffmpeg'
2670 docdir_default='${prefix}/share/doc/ffmpeg'
2671 incdir_default='${prefix}/include'
2672 libdir_default='${prefix}/lib'
2673 mandir_default='${prefix}/share/man'
2674 shlibdir_default="$libdir_default"
2675
2676 # toolchain
2677 ar_default="ar"
2678 cc_default="gcc"
2679 cxx_default="g++"
2680 host_cc_default="gcc"
2681 cp_f="cp -f"
2682 doxygen_default="doxygen"
2683 install="install"
2684 ln_s="ln -s -f"
2685 nm_default="nm -g"
2686 objformat="elf"
2687 pkg_config_default=pkg-config
2688 ranlib_default="ranlib"
2689 strip_default="strip"
2690 yasmexe_default="yasm"
2691 windres_default="windres"
2692
2693 # OS
2694 target_os_default=$(tolower $(uname -s))
2695 host_os=$target_os_default
2696
2697 # machine
2698 if test "$target_os_default" = aix; then
2699     arch_default=$(uname -p)
2700     strip_default="strip -X32_64"
2701 else
2702     arch_default=$(uname -m)
2703 fi
2704 cpu="generic"
2705 intrinsics="none"
2706
2707 # configurable options
2708 enable $PROGRAM_LIST
2709 enable $DOCUMENT_LIST
2710 enable $EXAMPLE_LIST
2711 enable $(filter_out avresample $LIBRARY_LIST)
2712 enable stripping
2713
2714 enable asm
2715 enable debug
2716 enable doc
2717 enable faan faandct faanidct
2718 enable optimizations
2719 enable runtime_cpudetect
2720 enable safe_bitstream_reader
2721 enable static
2722 enable swscale_alpha
2723
2724 sws_max_filter_size_default=256
2725 set_default sws_max_filter_size
2726
2727 # Enable hwaccels by default.
2728 enable dxva2 vaapi vda vdpau xvmc
2729 enable xlib
2730
2731 # build settings
2732 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2733 LIBPREF="lib"
2734 LIBSUF=".a"
2735 FULLNAME='$(NAME)$(BUILDSUF)'
2736 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2737 SLIBPREF="lib"
2738 SLIBSUF=".so"
2739 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2740 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2741 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2742 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2743 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2744 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2745
2746 asflags_filter=echo
2747 cflags_filter=echo
2748 ldflags_filter=echo
2749
2750 AS_C='-c'
2751 AS_O='-o $@'
2752 CC_C='-c'
2753 CC_E='-E -o $@'
2754 CC_O='-o $@'
2755 CXX_C='-c'
2756 CXX_O='-o $@'
2757 LD_O='-o $@'
2758 LD_LIB='-l%'
2759 LD_PATH='-L'
2760 HOSTCC_C='-c'
2761 HOSTCC_E='-E -o $@'
2762 HOSTCC_O='-o $@'
2763 HOSTLD_O='-o $@'
2764
2765 host_libs='-lm'
2766 host_cflags_filter=echo
2767 host_ldflags_filter=echo
2768
2769 target_path='$(CURDIR)'
2770
2771 # since the object filename is not given with the -MM flag, the compiler
2772 # is only able to print the basename, and we must add the path ourselves
2773 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2774 DEPFLAGS='-MM'
2775
2776 # find source path
2777 if test -f configure; then
2778     source_path=.
2779 else
2780     source_path=$(cd $(dirname "$0"); pwd)
2781     echo "$source_path" | grep -q '[[:blank:]]' &&
2782         die "Out of tree builds are impossible with whitespace in source path."
2783     test -e "$source_path/config.h" &&
2784         die "Out of tree builds are impossible with config.h in source dir."
2785 fi
2786
2787 for v in "$@"; do
2788     r=${v#*=}
2789     l=${v%"$r"}
2790     r=$(sh_quote "$r")
2791     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2792 done
2793
2794 find_things(){
2795     thing=$1
2796     pattern=$2
2797     file=$source_path/$3
2798     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2799 }
2800
2801 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2802 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2803 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2804 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2805 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2806 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2807 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2808 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2809 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2810 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2811 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2812
2813 ALL_COMPONENTS="
2814     $BSF_LIST
2815     $DECODER_LIST
2816     $DEMUXER_LIST
2817     $ENCODER_LIST
2818     $FILTER_LIST
2819     $HWACCEL_LIST
2820     $INDEV_LIST
2821     $MUXER_LIST
2822     $OUTDEV_LIST
2823     $PARSER_LIST
2824     $PROTOCOL_LIST
2825 "
2826
2827 for n in $COMPONENT_LIST; do
2828     v=$(toupper ${n%s})_LIST
2829     eval enable \$$v
2830     eval ${n}_if_any="\$$v"
2831 done
2832
2833 enable $ARCH_EXT_LIST
2834
2835 die_unknown(){
2836     echo "Unknown option \"$1\"."
2837     echo "See $0 --help for available options."
2838     exit 1
2839 }
2840
2841 print_3_columns() {
2842     cat | tr ' ' '\n' | sort | pr -r -3 -t
2843 }
2844
2845 show_list() {
2846     suffix=_$1
2847     shift
2848     echo $* | sed s/$suffix//g | print_3_columns
2849     exit 0
2850 }
2851
2852 rand_list(){
2853     IFS=', '
2854     set -- $*
2855     unset IFS
2856     for thing; do
2857         comp=${thing%:*}
2858         prob=${thing#$comp}
2859         prob=${prob#:}
2860         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2861         echo "prob ${prob:-0.5}"
2862         printf '%s\n' $comp
2863     done
2864 }
2865
2866 do_random(){
2867     action=$1
2868     shift
2869     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2870     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2871 }
2872
2873 for opt do
2874     optval="${opt#*=}"
2875     case "$opt" in
2876         --extra-ldflags=*)
2877             add_ldflags $optval
2878         ;;
2879         --extra-ldexeflags=*)
2880             add_ldexeflags $optval
2881         ;;
2882         --extra-libs=*)
2883             add_extralibs $optval
2884         ;;
2885         --disable-devices)
2886             disable $INDEV_LIST $OUTDEV_LIST
2887         ;;
2888         --enable-debug=*)
2889             debuglevel="$optval"
2890         ;;
2891         --disable-programs)
2892             disable $PROGRAM_LIST
2893         ;;
2894         --disable-everything)
2895             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2896         ;;
2897         --disable-all)
2898             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2899             disable $LIBRARY_LIST $PROGRAM_LIST doc
2900         ;;
2901         --enable-random|--disable-random)
2902             action=${opt%%-random}
2903             do_random ${action#--} $COMPONENT_LIST
2904         ;;
2905         --enable-random=*|--disable-random=*)
2906             action=${opt%%-random=*}
2907             do_random ${action#--} $optval
2908         ;;
2909         --enable-*=*|--disable-*=*)
2910             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2911             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2912             eval list=\$$(toupper $thing)_LIST
2913             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2914             list=$(filter "$name" $list)
2915             [ "$list" = "" ] && warn "Option $opt did not match anything"
2916             $action $list
2917         ;;
2918         --enable-?*|--disable-?*)
2919             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2920             if is_in $option $COMPONENT_LIST; then
2921                 test $action = disable && action=unset
2922                 eval $action \$$(toupper ${option%s})_LIST
2923             elif is_in $option $CMDLINE_SELECT; then
2924                 $action $option
2925             else
2926                 die_unknown $opt
2927             fi
2928         ;;
2929         --list-*)
2930             NAME="${opt#--list-}"
2931             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2932             NAME=${NAME%s}
2933             eval show_list $NAME \$$(toupper $NAME)_LIST
2934         ;;
2935         --help|-h) show_help
2936         ;;
2937         --fatal-warnings) enable fatal_warnings
2938         ;;
2939         *)
2940             optname="${opt%%=*}"
2941             optname="${optname#--}"
2942             optname=$(echo "$optname" | sed 's/-/_/g')
2943             if is_in $optname $CMDLINE_SET; then
2944                 eval $optname='$optval'
2945             elif is_in $optname $CMDLINE_APPEND; then
2946                 append $optname "$optval"
2947             else
2948                 die_unknown $opt
2949             fi
2950         ;;
2951     esac
2952 done
2953
2954 disabled logging && logfile=/dev/null
2955
2956 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2957 set >> $logfile
2958
2959 test -n "$cross_prefix" && enable cross_compile
2960
2961 if enabled cross_compile; then
2962     test -n "$arch" && test -n "$target_os" ||
2963         die "Must specify target arch and OS when cross-compiling"
2964 fi
2965
2966 ar_default="${cross_prefix}${ar_default}"
2967 cc_default="${cross_prefix}${cc_default}"
2968 cxx_default="${cross_prefix}${cxx_default}"
2969 nm_default="${cross_prefix}${nm_default}"
2970 pkg_config_default="${cross_prefix}${pkg_config_default}"
2971 ranlib_default="${cross_prefix}${ranlib_default}"
2972 strip_default="${cross_prefix}${strip_default}"
2973 windres_default="${cross_prefix}${windres_default}"
2974
2975 sysinclude_default="${sysroot}/usr/include"
2976
2977 test -n "$valgrind" && toolchain="valgrind-memcheck"
2978
2979 case "$toolchain" in
2980     clang-asan)
2981         cc_default="clang"
2982         add_cflags  -fsanitize=address
2983         add_ldflags -fsanitize=address
2984     ;;
2985     clang-tsan)
2986         cc_default="clang"
2987         add_cflags  -fsanitize=thread -pie
2988         add_ldflags -fsanitize=thread -pie
2989     ;;
2990     clang-usan)
2991         cc_default="clang"
2992         add_cflags  -fsanitize=undefined
2993         add_ldflags -fsanitize=undefined
2994     ;;
2995     gcc-asan)
2996         cc_default="gcc"
2997         add_cflags  -fsanitize=address
2998         add_ldflags -fsanitize=address
2999     ;;
3000     gcc-tsan)
3001         cc_default="gcc"
3002         add_cflags  -fsanitize=thread -pie -fPIC
3003         add_ldflags -fsanitize=thread -pie -fPIC
3004     ;;
3005     gcc-usan)
3006         cc_default="gcc"
3007         add_cflags  -fsanitize=undefined
3008         add_ldflags -fsanitize=undefined
3009     ;;
3010     valgrind-massif)
3011         target_exec_default=${valgrind:-"valgrind"}
3012         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"
3013     ;;
3014     valgrind-memcheck)
3015         target_exec_default=${valgrind:-"valgrind"}
3016         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3017     ;;
3018     msvc)
3019         # Check whether the current MSVC version needs the C99 converter.
3020         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3021         # support enough of C99 to build ffmpeg. Default to the new
3022         # behaviour if the regexp was unable to match anything, since this
3023         # successfully parses the version number of existing supported
3024         # versions that require the converter (MSVC 2010 and 2012).
3025         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3026         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3027             cc_default="cl"
3028         else
3029             cc_default="c99wrap cl"
3030         fi
3031         ld_default="link"
3032         nm_default="dumpbin -symbols"
3033         ar_default="lib"
3034         target_os_default="win32"
3035         # Use a relative path for TMPDIR. This makes sure all the
3036         # ffconf temp files are written with a relative path, avoiding
3037         # issues with msys/win32 path conversion for MSVC parameters
3038         # such as -Fo<file> or -out:<file>.
3039         TMPDIR=.
3040     ;;
3041     icl)
3042         cc_default="icl"
3043         ld_default="xilink"
3044         nm_default="dumpbin -symbols"
3045         ar_default="xilib"
3046         target_os_default="win32"
3047         TMPDIR=.
3048     ;;
3049     gcov)
3050         add_cflags  -fprofile-arcs -ftest-coverage
3051         add_ldflags -fprofile-arcs -ftest-coverage
3052     ;;
3053     hardened)
3054         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3055         add_cflags   -fno-strict-overflow -fstack-protector-all
3056         add_ldflags  -Wl,-z,relro -Wl,-z,now
3057     ;;
3058     ?*)
3059         die "Unknown toolchain $toolchain"
3060     ;;
3061 esac
3062
3063 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3064     target_exec target_os yasmexe
3065 enabled cross_compile || host_cc_default=$cc
3066 set_default host_cc
3067
3068 if ! $pkg_config --version >/dev/null 2>&1; then
3069     warn "$pkg_config not found, library detection may fail."
3070     pkg_config=false
3071 fi
3072
3073 if test $doxygen != $doxygen_default && \
3074   ! $doxygen --version >/dev/null 2>&1; then
3075     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3076 fi
3077
3078 exesuf() {
3079     case $1 in
3080         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3081     esac
3082 }
3083
3084 EXESUF=$(exesuf $target_os)
3085 HOSTEXESUF=$(exesuf $host_os)
3086
3087 # set temporary file name
3088 : ${TMPDIR:=$TEMPDIR}
3089 : ${TMPDIR:=$TMP}
3090 : ${TMPDIR:=/tmp}
3091
3092 if [ -n "$tempprefix" ] ; then
3093     mktemp(){
3094         echo $tempprefix.${HOSTNAME}.${UID}
3095     }
3096 elif ! check_cmd mktemp -u XXXXXX; then
3097     # simple replacement for missing mktemp
3098     # NOT SAFE FOR GENERAL USE
3099     mktemp(){
3100         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3101     }
3102 fi
3103
3104 tmpfile(){
3105     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3106         (set -C; exec > $tmp) 2>/dev/null ||
3107         die "Unable to create temporary file in $TMPDIR."
3108     append TMPFILES $tmp
3109     eval $1=$tmp
3110 }
3111
3112 trap 'rm -f -- $TMPFILES' EXIT
3113
3114 tmpfile TMPASM .asm
3115 tmpfile TMPC   .c
3116 tmpfile TMPCPP .cpp
3117 tmpfile TMPE   $EXESUF
3118 tmpfile TMPH   .h
3119 tmpfile TMPM   .m
3120 tmpfile TMPO   .o
3121 tmpfile TMPS   .S
3122 tmpfile TMPSH  .sh
3123 tmpfile TMPV   .ver
3124
3125 unset -f mktemp
3126
3127 chmod +x $TMPE
3128
3129 # make sure we can execute files in $TMPDIR
3130 cat > $TMPSH 2>> $logfile <<EOF
3131 #! /bin/sh
3132 EOF
3133 chmod +x $TMPSH >> $logfile 2>&1
3134 if ! $TMPSH >> $logfile 2>&1; then
3135     cat <<EOF
3136 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3137 variable to another directory and make sure that it is not mounted noexec.
3138 EOF
3139     die "Sanity test failed."
3140 fi
3141
3142 armasm_flags(){
3143     for flag; do
3144         case $flag in
3145             # Filter out MSVC cl.exe options from cflags that shouldn't
3146             # be passed to gas-preprocessor
3147             -M[TD]*)                                            ;;
3148             *)                  echo $flag                      ;;
3149         esac
3150    done
3151 }
3152
3153 ccc_flags(){
3154     for flag; do
3155         case $flag in
3156             -std=c99)           echo -c99                       ;;
3157             -mcpu=*)            echo -arch ${flag#*=}           ;;
3158             -mieee)             echo -ieee                      ;;
3159             -O*|-fast)          echo $flag                      ;;
3160             -fno-math-errno)    echo -assume nomath_errno       ;;
3161             -g)                 echo -g3                        ;;
3162             -Wall)              echo -msg_enable level2         ;;
3163             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3164             -Wl,*)              echo $flag                      ;;
3165             -f*|-W*)                                            ;;
3166             *)                  echo $flag                      ;;
3167         esac
3168    done
3169 }
3170
3171 cparser_flags(){
3172     for flag; do
3173         case $flag in
3174             -Wno-switch)             echo -Wno-switch-enum ;;
3175             -Wno-format-zero-length) ;;
3176             -Wdisabled-optimization) ;;
3177             -Wno-pointer-sign)       echo -Wno-other ;;
3178             *)                       echo $flag ;;
3179         esac
3180     done
3181 }
3182
3183 msvc_common_flags(){
3184     for flag; do
3185         case $flag in
3186             # In addition to specifying certain flags under the compiler
3187             # specific filters, they must be specified here as well or else the
3188             # generic catch all at the bottom will print the original flag.
3189             -Wall)                ;;
3190             -std=c99)             ;;
3191             # Common flags
3192             -fomit-frame-pointer) ;;
3193             -g)                   echo -Z7 ;;
3194             -fno-math-errno)      ;;
3195             -fno-common)          ;;
3196             -fno-signed-zeros)    ;;
3197             -fPIC)                ;;
3198             -mthumb)              ;;
3199             -march=*)             ;;
3200             -lz)                  echo zlib.lib ;;
3201             -lavifil32)           echo vfw32.lib ;;
3202             -lavicap32)           echo vfw32.lib user32.lib ;;
3203             -l*)                  echo ${flag#-l}.lib ;;
3204             *)                    echo $flag ;;
3205         esac
3206     done
3207 }
3208
3209 msvc_flags(){
3210     msvc_common_flags "$@"
3211     for flag; do
3212         case $flag in
3213             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3214                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3215                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3216                                        -wd4554 \
3217                                        -wd4273 -wd4701 ;;
3218         esac
3219     done
3220 }
3221
3222 icl_flags(){
3223     msvc_common_flags "$@"
3224     for flag; do
3225         case $flag in
3226             # Despite what Intel's documentation says -Wall, which is supported
3227             # on Windows, does enable remarks so disable them here.
3228             -Wall)                echo $flag -Qdiag-disable:remark ;;
3229             -std=c99)             echo -Qstd=c99 ;;
3230             -flto)                echo -ipo ;;
3231         esac
3232     done
3233 }
3234
3235 icc_flags(){
3236     for flag; do
3237         case $flag in
3238             -flto)                echo -ipo ;;
3239             *)                    echo $flag ;;
3240         esac
3241     done
3242 }
3243
3244 pgi_flags(){
3245     for flag; do
3246         case $flag in
3247             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3248             -fomit-frame-pointer) echo -Mnoframe ;;
3249             -g)                   echo -gopt ;;
3250             *)                    echo $flag ;;
3251         esac
3252     done
3253 }
3254
3255 suncc_flags(){
3256     for flag; do
3257         case $flag in
3258             -march=*|-mcpu=*)
3259                 case "${flag#*=}" in
3260                     native)                   echo -xtarget=native       ;;
3261                     v9|niagara)               echo -xarch=sparc          ;;
3262                     ultrasparc)               echo -xarch=sparcvis       ;;
3263                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3264                     i586|pentium)             echo -xchip=pentium        ;;
3265                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3266                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3267                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3268                     pentium4*)          echo -xtarget=pentium4           ;;
3269                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3270                     *-sse3)             echo -xarch=sse3                 ;;
3271                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3272                     bonnell)                   echo -xarch=ssse3         ;;
3273                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3274                     westmere)                  echo -xtarget=westmere    ;;
3275                     silvermont)                echo -xarch=sse4_2        ;;
3276                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3277                     core-avx*|ivybridge|haswell|broadwell)
3278                                                echo -xarch=avx           ;;
3279                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3280                     btver1)                    echo -xarch=amdsse4a      ;;
3281                     btver2|bdver*)             echo -xarch=avx           ;;
3282                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3283                     k8|opteron|athlon64|athlon-fx)
3284                                                echo -xarch=sse2a         ;;
3285                     athlon*)                   echo -xarch=pentium_proa  ;;
3286                 esac
3287                 ;;
3288             -std=c99)             echo -xc99              ;;
3289             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3290             -fPIC)                echo -KPIC -xcode=pic32 ;;
3291             -W*,*)                echo $flag              ;;
3292             -f*-*|-W*|-mimpure-text)                      ;;
3293             -shared)              echo -G                 ;;
3294             *)                    echo $flag              ;;
3295         esac
3296     done
3297 }
3298
3299 tms470_flags(){
3300     for flag; do
3301         case $flag in
3302             -march=*|-mcpu=*)
3303                 case "${flag#*=}" in
3304                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3305                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3306                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3307                     armv6*|arm11*)          echo -mv=6   ;;
3308                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3309                                             echo -mv=5e  ;;
3310                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3311                 esac
3312                 ;;
3313             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3314             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3315             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3316             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3317             -msoft-float)   echo --float_support=vfplib       ;;
3318             -O[0-3]|-mf=*)  echo $flag                        ;;
3319             -g)             echo -g -mn                       ;;
3320             -pds=*)         echo $flag                        ;;
3321             -D*|-I*)        echo $flag                        ;;
3322             --gcc|--abi=*)  echo $flag                        ;;
3323             -me)            echo $flag                        ;;
3324         esac
3325     done
3326 }
3327
3328 probe_cc(){
3329     pfx=$1
3330     _cc=$2
3331
3332     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3333     unset _ld_o _ldflags _ld_lib _ld_path
3334     unset _depflags _DEPCMD _DEPFLAGS
3335     _flags_filter=echo
3336
3337     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3338         true # no-op to avoid reading stdin in following checks
3339     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3340         _type=llvm_gcc
3341         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3342         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3343         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3344         _cflags_speed='-O3'
3345         _cflags_size='-Os'
3346     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3347         _type=gcc
3348         gcc_version=$($_cc --version | head -n1)
3349         gcc_basever=$($_cc -dumpversion)
3350         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3351         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3352         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3353         if ! $_cc -dumpversion | grep -q '^2\.'; then
3354             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3355         fi
3356         _cflags_speed='-O3'
3357         _cflags_size='-Os'
3358     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3359         _type=icc
3360         _ident=$($_cc --version | head -n1)
3361         _depflags='-MMD'
3362         _cflags_speed='-O3'
3363         _cflags_size='-Os'
3364         _cflags_noopt='-O1'
3365         _flags_filter=icc_flags
3366     elif $_cc -v 2>&1 | grep -q xlc; then
3367         _type=xlc
3368         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3369         _cflags_speed='-O5'
3370         _cflags_size='-O5 -qcompact'
3371     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3372         _type=ccc
3373         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3374         _DEPFLAGS='-M'
3375         _cflags_speed='-fast'
3376         _cflags_size='-O1'
3377         _flags_filter=ccc_flags
3378     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3379         test -d "$sysroot" || die "No valid sysroot specified."
3380         _type=armcc
3381         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3382         armcc_conf="$PWD/armcc.conf"
3383         $_cc --arm_linux_configure                 \
3384              --arm_linux_config_file="$armcc_conf" \
3385              --configure_sysroot="$sysroot"        \
3386              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3387              die "Error creating armcc configuration file."
3388         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3389         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3390         as_default="${cross_prefix}gcc"
3391         _depflags='-MMD'
3392         _cflags_speed='-O3'
3393         _cflags_size='-Os'
3394     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3395         _type=tms470
3396         _ident=$($_cc -version | head -n1 | tr -s ' ')
3397         _flags='--gcc --abi=eabi -me'
3398         _cc_e='-ppl -fe=$@'
3399         _cc_o='-fe=$@'
3400         _depflags='-ppa -ppd=$(@:.o=.d)'
3401         _cflags_speed='-O3 -mf=5'
3402         _cflags_size='-O3 -mf=2'
3403         _flags_filter=tms470_flags
3404     elif $_cc -v 2>&1 | grep -q clang; then
3405         _type=clang
3406         _ident=$($_cc --version | head -n1)
3407         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3408         _cflags_speed='-O3'
3409         _cflags_size='-Os'
3410     elif $_cc -V 2>&1 | grep -q Sun; then
3411         _type=suncc
3412         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3413         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3414         _DEPFLAGS='-xM1 -xc99'
3415         _ldflags='-std=c99'
3416         _cflags_speed='-O5'
3417         _cflags_size='-O5 -xspace'
3418         _flags_filter=suncc_flags
3419     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3420         _type=pathscale
3421         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3422         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3423         _cflags_speed='-O2'
3424         _cflags_size='-Os'
3425         _flags_filter='filter_out -Wdisabled-optimization'
3426     elif $_cc -v 2>&1 | grep -q Open64; then
3427         _type=open64
3428         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3429         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3430         _cflags_speed='-O2'
3431         _cflags_size='-Os'
3432         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3433     elif $_cc -V 2>&1 | grep -q Portland; then
3434         _type=pgi
3435         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3436         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3437         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3438         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3439         _cflags_noopt="-O"
3440         _flags_filter=pgi_flags
3441     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3442         _type=armasm
3443         _ident=$($_cc | head -n1)
3444         # 4509: "This form of conditional instruction is deprecated"
3445         _flags="-nologo -ignore 4509"
3446         _flags_filter=armasm_flags
3447     elif $_cc 2>&1 | grep -q Microsoft; then
3448         _type=msvc
3449         _ident=$($cc 2>&1 | head -n1)
3450         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3451         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3452         _cflags_speed="-O2"
3453         _cflags_size="-O1"
3454         if $_cc 2>&1 | grep -q Linker; then
3455             _ld_o='-out:$@'
3456         else
3457             _ld_o='-Fe$@'
3458         fi
3459         _cc_o='-Fo$@'
3460         _cc_e='-P -Fi$@'
3461         _flags_filter=msvc_flags
3462         _ld_lib='lib%.a'
3463         _ld_path='-libpath:'
3464         _flags='-nologo'
3465         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3466         if [ $pfx = hostcc ]; then
3467             append _cflags -Dsnprintf=_snprintf
3468         fi
3469         disable stripping
3470     elif $_cc 2>&1 | grep -q Intel; then
3471         _type=icl
3472         _ident=$($cc 2>&1 | head -n1)
3473         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3474         # Not only is O3 broken on 13.x+ but it is slower on all previous
3475         # versions (tested) as well.
3476         _cflags_speed="-O2"
3477         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3478         if $_cc 2>&1 | grep -q Linker; then
3479             _ld_o='-out:$@'
3480         else
3481             _ld_o='-Fe$@'
3482         fi
3483         _cc_o='-Fo$@'
3484         _cc_e='-P'
3485         _flags_filter=icl_flags
3486         _ld_lib='lib%.a'
3487         _ld_path='-libpath:'
3488         # -Qdiag-error to make icl error when seeing certain unknown arguments
3489         _flags='-nologo -Qdiag-error:4044,10157'
3490         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3491         # with MSVC which enables it by default.
3492         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3493         if [ $pfx = hostcc ]; then
3494             append _cflags -Dsnprintf=_snprintf
3495         fi
3496     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3497         _type=cparser
3498         _ident=$($_cc --version | head -n1)
3499         _depflags='-MMD'
3500         _cflags_speed='-O4'
3501         _cflags_size='-O2'
3502         _flags_filter=cparser_flags
3503     fi
3504
3505     eval ${pfx}_type=\$_type
3506     eval ${pfx}_ident=\$_ident
3507 }
3508
3509 set_ccvars(){
3510     eval ${1}_C=\${_cc_c-\${${1}_C}}
3511     eval ${1}_E=\${_cc_e-\${${1}_E}}
3512     eval ${1}_O=\${_cc_o-\${${1}_O}}
3513
3514     if [ -n "$_depflags" ]; then
3515         eval ${1}_DEPFLAGS=\$_depflags
3516     else
3517         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3518         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3519         eval DEP${1}FLAGS=\$_flags
3520     fi
3521 }
3522
3523 probe_cc cc "$cc"
3524 cflags_filter=$_flags_filter
3525 cflags_speed=$_cflags_speed
3526 cflags_size=$_cflags_size
3527 cflags_noopt=$_cflags_noopt
3528 add_cflags $_flags $_cflags
3529 cc_ldflags=$_ldflags
3530 set_ccvars CC
3531
3532 probe_cc hostcc "$host_cc"
3533 host_cflags_filter=$_flags_filter
3534 add_host_cflags  $_flags $_cflags
3535 set_ccvars HOSTCC
3536
3537 test -n "$cc_type" && enable $cc_type ||
3538     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3539
3540 : ${as_default:=$cc}
3541 : ${dep_cc_default:=$cc}
3542 : ${ld_default:=$cc}
3543 : ${host_ld_default:=$host_cc}
3544 set_default ar as dep_cc ld host_ld windres
3545
3546 probe_cc as "$as"
3547 asflags_filter=$_flags_filter
3548 add_asflags $_flags $_cflags
3549 set_ccvars AS
3550
3551 probe_cc ld "$ld"
3552 ldflags_filter=$_flags_filter
3553 add_ldflags $_flags $_ldflags
3554 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3555 LD_O=${_ld_o-$LD_O}
3556 LD_LIB=${_ld_lib-$LD_LIB}
3557 LD_PATH=${_ld_path-$LD_PATH}
3558
3559 probe_cc hostld "$host_ld"
3560 host_ldflags_filter=$_flags_filter
3561 add_host_ldflags $_flags $_ldflags
3562 HOSTLD_O=${_ld_o-$HOSTLD_O}
3563
3564 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3565     probe_cc depcc "$dep_cc"
3566     CCDEP=${_DEPCMD:-$DEPCMD}
3567     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3568     DEPCCFLAGS=$_flags
3569 fi
3570
3571 if $ar 2>&1 | grep -q Microsoft; then
3572     arflags="-nologo"
3573     ar_o='-out:$@'
3574 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3575     arflags="rq"
3576     ar_o='$@'
3577 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3578     arflags='-Xany -r -c'
3579     ar_o='$@'
3580 else
3581     arflags="rc"
3582     ar_o='$@'
3583 fi
3584
3585 add_cflags $extra_cflags
3586 add_cxxflags $extra_cxxflags
3587 add_asflags $extra_cflags
3588
3589 if test -n "$sysroot"; then
3590     case "$cc_type" in
3591         gcc|llvm_gcc|clang)
3592             add_cppflags --sysroot="$sysroot"
3593             add_ldflags --sysroot="$sysroot"
3594 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3595             add_cppflags -isysroot "$sysroot"
3596             add_ldflags -isysroot "$sysroot"
3597         ;;
3598         tms470)
3599             add_cppflags -I"$sysinclude"
3600             add_ldflags  --sysroot="$sysroot"
3601         ;;
3602     esac
3603 fi
3604
3605 if test "$cpu" = host; then
3606     enabled cross_compile &&
3607         die "--cpu=host makes no sense when cross-compiling."
3608
3609     case "$cc_type" in
3610         gcc|llvm_gcc)
3611             check_native(){
3612                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3613                 sed -n "/cc1.*$1=/{
3614                             s/.*$1=\\([^ ]*\\).*/\\1/
3615                             p
3616                             q
3617                         }" $TMPE
3618             }
3619             cpu=$(check_native -march || check_native -mcpu)
3620         ;;
3621     esac
3622
3623     test "${cpu:-host}" = host &&
3624         die "--cpu=host not supported with compiler $cc"
3625 fi
3626
3627 # Deal with common $arch aliases
3628 case "$arch" in
3629     aarch64|arm64)
3630         arch="aarch64"
3631     ;;
3632     arm*|iPad*|iPhone*)
3633         arch="arm"
3634     ;;
3635     mips*|IP*)
3636         arch="mips"
3637     ;;
3638     parisc*|hppa*)
3639         arch="parisc"
3640     ;;
3641     "Power Macintosh"|ppc*|powerpc*)
3642         arch="ppc"
3643     ;;
3644     s390|s390x)
3645         arch="s390"
3646     ;;
3647     sh4|sh)
3648         arch="sh4"
3649     ;;
3650     sun4u|sparc*)
3651         arch="sparc"
3652     ;;
3653     tilegx|tile-gx)
3654         arch="tilegx"
3655     ;;
3656     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3657         arch="x86"
3658     ;;
3659 esac
3660
3661 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3662 enable $arch
3663
3664 # Add processor-specific flags
3665 if enabled aarch64; then
3666
3667     case $cpu in
3668         armv*)
3669             cpuflags="-march=$cpu"
3670         ;;
3671         *)
3672             cpuflags="-mcpu=$cpu"
3673         ;;
3674     esac
3675
3676 elif enabled alpha; then
3677
3678     cpuflags="-mcpu=$cpu"
3679
3680 elif enabled arm; then
3681
3682     check_arm_arch() {
3683         check_cpp_condition stddef.h \
3684             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3685             $cpuflags
3686     }
3687
3688     probe_arm_arch() {
3689         if   check_arm_arch 4;        then echo armv4;
3690         elif check_arm_arch 4T;       then echo armv4t;
3691         elif check_arm_arch 5;        then echo armv5;
3692         elif check_arm_arch 5E;       then echo armv5e;
3693         elif check_arm_arch 5T;       then echo armv5t;
3694         elif check_arm_arch 5TE;      then echo armv5te;
3695         elif check_arm_arch 5TEJ;     then echo armv5te;
3696         elif check_arm_arch 6;        then echo armv6;
3697         elif check_arm_arch 6J;       then echo armv6j;
3698         elif check_arm_arch 6K;       then echo armv6k;
3699         elif check_arm_arch 6Z;       then echo armv6z;
3700         elif check_arm_arch 6ZK;      then echo armv6zk;
3701         elif check_arm_arch 6T2;      then echo armv6t2;
3702         elif check_arm_arch 7;        then echo armv7;
3703         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3704         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3705         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3706         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3707         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3708         fi
3709     }
3710
3711     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3712
3713     case $cpu in
3714         armv*)
3715             cpuflags="-march=$cpu"
3716             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3717         ;;
3718         *)
3719             cpuflags="-mcpu=$cpu"
3720             case $cpu in
3721                 cortex-a*)                               subarch=armv7a  ;;
3722                 cortex-r*)                               subarch=armv7r  ;;
3723                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3724                 arm11*)                                  subarch=armv6   ;;
3725                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3726                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3727                 *)                             subarch=$(probe_arm_arch) ;;
3728             esac
3729         ;;
3730     esac
3731
3732     case "$subarch" in
3733         armv5t*)    enable fast_clz                ;;
3734         armv[6-8]*)
3735             enable fast_clz
3736             disabled fast_unaligned || enable fast_unaligned
3737             ;;
3738     esac
3739
3740 elif enabled avr32; then
3741
3742     case $cpu in
3743         ap7[02]0[0-2])
3744             subarch="avr32_ap"
3745             cpuflags="-mpart=$cpu"
3746         ;;
3747         ap)
3748             subarch="avr32_ap"
3749             cpuflags="-march=$cpu"
3750         ;;
3751         uc3[ab]*)
3752             subarch="avr32_uc"
3753             cpuflags="-mcpu=$cpu"
3754         ;;
3755         uc)
3756             subarch="avr32_uc"
3757             cpuflags="-march=$cpu"
3758         ;;
3759     esac
3760
3761 elif enabled bfin; then
3762
3763     cpuflags="-mcpu=$cpu"
3764
3765 elif enabled mips; then
3766
3767     cpuflags="-march=$cpu"
3768
3769     case $cpu in
3770         24kc)
3771             disable mipsfpu
3772             disable mipsdspr1
3773             disable mipsdspr2
3774         ;;
3775         24kf*)
3776             disable mipsdspr1
3777             disable mipsdspr2
3778         ;;
3779         24kec|34kc|1004kc)
3780             disable mipsfpu
3781             disable mipsdspr2
3782         ;;
3783         24kef*|34kf*|1004kf*)
3784             disable mipsdspr2
3785         ;;
3786         74kc)
3787             disable mipsfpu
3788         ;;
3789     esac
3790
3791 elif enabled ppc; then
3792
3793     disable ldbrx
3794     disable vsx
3795
3796     case $(tolower $cpu) in
3797         601|ppc601|powerpc601)
3798             cpuflags="-mcpu=601"
3799             disable altivec
3800         ;;
3801         603*|ppc603*|powerpc603*)
3802             cpuflags="-mcpu=603"
3803             disable altivec
3804         ;;
3805         604*|ppc604*|powerpc604*)
3806             cpuflags="-mcpu=604"
3807             disable altivec
3808         ;;
3809         g3|75*|ppc75*|powerpc75*)
3810             cpuflags="-mcpu=750"
3811             disable altivec
3812         ;;
3813         g4|745*|ppc745*|powerpc745*)
3814             cpuflags="-mcpu=7450"
3815         ;;
3816         74*|ppc74*|powerpc74*)
3817             cpuflags="-mcpu=7400"
3818         ;;
3819         g5|970|ppc970|powerpc970)
3820             cpuflags="-mcpu=970"
3821         ;;
3822         power[3-8]*)
3823             cpuflags="-mcpu=$cpu"
3824         ;;
3825         cell)
3826             cpuflags="-mcpu=cell"
3827             enable ldbrx
3828         ;;
3829         e500mc)
3830             cpuflags="-mcpu=e500mc"
3831             disable altivec
3832         ;;
3833         e500v2)
3834             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3835             disable altivec
3836             disable dcbzl
3837         ;;
3838         e500)
3839             cpuflags="-mcpu=8540 -mhard-float"
3840             disable altivec
3841             disable dcbzl
3842         ;;
3843     esac
3844
3845 elif enabled sparc; then
3846
3847     case $cpu in
3848         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3849             cpuflags="-mcpu=$cpu"
3850         ;;
3851         ultrasparc*|niagara[234])
3852             cpuflags="-mcpu=$cpu"
3853         ;;
3854     esac
3855
3856 elif enabled x86; then
3857
3858     case $cpu in
3859         i[345]86|pentium)
3860             cpuflags="-march=$cpu"
3861             disable i686
3862             disable mmx
3863         ;;
3864         # targets that do NOT support nopl and conditional mov (cmov)
3865         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3866             cpuflags="-march=$cpu"
3867             disable i686
3868         ;;
3869         # targets that do support nopl and conditional mov (cmov)
3870         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3871         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3872             cpuflags="-march=$cpu"
3873             enable i686
3874             enable fast_cmov
3875         ;;
3876         # targets that do support conditional mov but on which it's slow
3877         pentium4|pentium4m|prescott|nocona)
3878             cpuflags="-march=$cpu"
3879             enable i686
3880             disable fast_cmov
3881         ;;
3882     esac
3883
3884 fi
3885
3886 if [ "$cpu" != generic ]; then
3887     add_cflags  $cpuflags
3888     add_asflags $cpuflags
3889 fi
3890
3891 # compiler sanity check
3892 check_exec <<EOF
3893 int main(void){ return 0; }
3894 EOF
3895 if test "$?" != 0; then
3896     echo "$cc is unable to create an executable file."
3897     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3898         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3899         echo "Only do this if you know what cross compiling means."
3900     fi
3901     die "C compiler test failed."
3902 fi
3903
3904 add_cppflags -D_ISOC99_SOURCE
3905 add_cxxflags -D__STDC_CONSTANT_MACROS
3906 check_cflags -std=c99
3907 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3908 #include <stdlib.h>
3909 EOF
3910 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3911 #include <stdlib.h>
3912 EOF
3913
3914 add_host_cppflags -D_ISOC99_SOURCE
3915 check_host_cflags -std=c99
3916 check_host_cflags -Wall
3917 check_host_cflags -O3
3918
3919 check_64bit(){
3920     arch32=$1
3921     arch64=$2
3922     expr=$3
3923     check_code cc "" "int test[2*($expr) - 1]" &&
3924         subarch=$arch64 || subarch=$arch32
3925 }
3926
3927 case "$arch" in
3928     aarch64|alpha|ia64)
3929         spic=$shared
3930     ;;
3931     mips)
3932         check_64bit mips mips64 '_MIPS_SIM > 1'
3933         spic=$shared
3934     ;;
3935     parisc)
3936         check_64bit parisc parisc64 'sizeof(void *) > 4'
3937         spic=$shared
3938     ;;
3939     ppc)
3940         check_64bit ppc ppc64 'sizeof(void *) > 4'
3941         spic=$shared
3942     ;;
3943     s390)
3944         check_64bit s390 s390x 'sizeof(void *) > 4'
3945         spic=$shared
3946     ;;
3947     sparc)
3948         check_64bit sparc sparc64 'sizeof(void *) > 4'
3949         spic=$shared
3950     ;;
3951     x86)
3952         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3953         # Treat x32 as x64 for now. Note it also needs spic=$shared
3954         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
3955             subarch=x86_64
3956         if test "$subarch" = "x86_64"; then
3957             spic=$shared
3958         fi
3959     ;;
3960     ppc)
3961         check_cc <<EOF && subarch="ppc64"
3962         int test[(int)sizeof(char*) - 7];
3963 EOF
3964     ;;
3965 esac
3966
3967 enable $subarch
3968 enabled spic && enable_weak pic
3969
3970 # OS specific
3971 case $target_os in
3972     aix)
3973         SHFLAGS=-shared
3974         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3975         enabled shared && add_ldflags -Wl,-brtl
3976         ;;
3977     android)
3978         disable symver
3979         SLIB_INSTALL_NAME='$(SLIBNAME)'
3980         SLIB_INSTALL_LINKS=
3981         # soname not set on purpose
3982         SHFLAGS=-shared
3983         ;;
3984     haiku)
3985         prefix_default="/boot/common"
3986         network_extralibs="-lnetwork"
3987         host_libs=
3988         ;;
3989     sunos)
3990         SHFLAGS='-shared -Wl,-h,$$(@F)'
3991         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3992         network_extralibs="-lsocket -lnsl"
3993         # When using suncc to build, the Solaris linker will mark
3994         # an executable with each instruction set encountered by
3995         # the Solaris assembler.  As our libraries contain their own
3996         # guards for processor-specific code, instead suppress
3997         # generation of the HWCAPS ELF section on Solaris x86 only.
3998         enabled_all suncc x86 &&
3999             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4000             add_ldflags -Wl,-M,mapfile
4001         nm_default='nm -P -g'
4002         ;;
4003     netbsd)
4004         disable symver
4005         oss_indev_extralibs="-lossaudio"
4006         oss_outdev_extralibs="-lossaudio"
4007         enabled gcc || check_ldflags -Wl,-zmuldefs
4008         ;;
4009     openbsd|bitrig)
4010         disable symver
4011         SHFLAGS='-shared'
4012         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4013         SLIB_INSTALL_LINKS=
4014         oss_indev_extralibs="-lossaudio"
4015         oss_outdev_extralibs="-lossaudio"
4016         ;;
4017     dragonfly)
4018         disable symver
4019         ;;
4020     freebsd)
4021         ;;
4022     bsd/os)
4023         add_extralibs -lpoll -lgnugetopt
4024         strip="strip -d"
4025         ;;
4026     darwin)
4027         enabled ppc && add_asflags -force_cpusubtype_ALL
4028         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4029         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4030         strip="${strip} -x"
4031         add_ldflags -Wl,-dynamic,-search_paths_first
4032         SLIBSUF=".dylib"
4033         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4034         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4035         objformat="macho"
4036         enabled x86_64 && objformat="macho64"
4037         enabled_any pic shared ||
4038             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4039         ;;
4040     mingw32*)
4041         if test $target_os = "mingw32ce"; then
4042             disable network
4043         else
4044             target_os=mingw32
4045         fi
4046         LIBTARGET=i386
4047         if enabled x86_64; then
4048             LIBTARGET="i386:x86-64"
4049         elif enabled arm; then
4050             LIBTARGET=arm-wince
4051         fi
4052         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4053         check_ldflags -Wl,--nxcompat
4054         check_ldflags -Wl,--dynamicbase
4055         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4056         shlibdir_default="$bindir_default"
4057         SLIBPREF=""
4058         SLIBSUF=".dll"
4059         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4060         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4061         dlltool="${cross_prefix}dlltool"
4062         if check_cmd lib.exe -list; then
4063             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4064             if enabled x86_64; then
4065                 LIBTARGET=x64
4066             fi
4067         elif check_cmd $dlltool --version; then
4068             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4069         fi
4070         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4071         SLIB_INSTALL_LINKS=
4072         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4073         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4074         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4075         objformat="win32"
4076         ranlib=:
4077         enable dos_paths
4078         ;;
4079     win32|win64)
4080         disable symver
4081         if enabled shared; then
4082             # Link to the import library instead of the normal static library
4083             # for shared libs.
4084             LD_LIB='%.lib'
4085             # Cannot build both shared and static libs with MSVC or icl.
4086             disable static
4087         fi
4088         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4089         shlibdir_default="$bindir_default"
4090         SLIBPREF=""
4091         SLIBSUF=".dll"
4092         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4093         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4094         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4095         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4096         SLIB_INSTALL_LINKS=
4097         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4098         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4099         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4100         objformat="win32"
4101         ranlib=:
4102         enable dos_paths
4103         ;;
4104     cygwin*)
4105         target_os=cygwin
4106         shlibdir_default="$bindir_default"
4107         SLIBPREF="cyg"
4108         SLIBSUF=".dll"
4109         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4110         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4111         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4112         SLIB_INSTALL_LINKS=
4113         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4114         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4115         objformat="win32"
4116         enable dos_paths
4117         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4118         ;;
4119     *-dos|freedos|opendos)
4120         network_extralibs="-lsocket"
4121         objformat="coff"
4122         enable dos_paths
4123         add_cppflags -U__STRICT_ANSI__
4124         ;;
4125     linux)
4126         enable dv1394
4127         ;;
4128     irix*)
4129         target_os=irix
4130         ranlib="echo ignoring ranlib"
4131         ;;
4132     os/2*)
4133         strip="lxlite -CS"
4134         ln_s="cp -f"
4135         objformat="aout"
4136         add_cppflags -D_GNU_SOURCE
4137         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4138         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4139         LIBSUF="_s.a"
4140         SLIBPREF=""
4141         SLIBSUF=".dll"
4142         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4143         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4144         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4145             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4146             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4147             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4148             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4149             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4150         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4151             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4152         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4153         enable dos_paths
4154         enable_weak os2threads
4155         ;;
4156     gnu/kfreebsd)
4157         add_cppflags -D_BSD_SOURCE
4158         ;;
4159     gnu)
4160         ;;
4161     qnx)
4162         add_cppflags -D_QNX_SOURCE
4163         network_extralibs="-lsocket"
4164         ;;
4165     symbian)
4166         SLIBSUF=".dll"
4167         enable dos_paths
4168         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4169         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4170         add_ldflags -Wl,--target1-abs,--no-undefined \
4171                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4172                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4173         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4174                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4175                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4176         ;;
4177     osf1)
4178         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4179         ;;
4180     minix)
4181         ;;
4182     plan9)
4183         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4184                      -D_REENTRANT_SOURCE        \
4185                      -D_RESEARCH_SOURCE         \
4186                      -DFD_SETSIZE=96            \
4187                      -DHAVE_SOCK_OPTS
4188         add_compat strtod.o strtod=avpriv_strtod
4189         network_extralibs='-lbsd'
4190         exeobjs=compat/plan9/main.o
4191         disable ffserver
4192         cp_f='cp'
4193         ;;
4194     none)
4195         ;;
4196     *)
4197         die "Unknown OS '$target_os'."
4198         ;;
4199 esac
4200
4201 # determine libc flavour
4202
4203 probe_libc(){
4204     pfx=$1
4205     pfx_no_=${pfx%_}
4206     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4207     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4208         eval ${pfx}libc_type=uclibc
4209         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4210     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4211         eval ${pfx}libc_type=glibc
4212         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4213     # MinGW headers can be installed on Cygwin, so check for newlib first.
4214     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4215         eval ${pfx}libc_type=newlib
4216         add_${pfx}cppflags -U__STRICT_ANSI__
4217     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4218     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4219         eval ${pfx}libc_type=mingw64
4220         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4221             add_compat msvcrt/snprintf.o
4222             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4223         fi
4224         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4225         eval test \$${pfx_no_}cc_type = "gcc" &&
4226             add_${pfx}cppflags -D__printf__=__gnu_printf__
4227     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4228          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4229         eval ${pfx}libc_type=mingw32
4230         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4231             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4232             die "ERROR: MinGW32 runtime version must be >= 3.15."
4233         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4234         eval test \$${pfx_no_}cc_type = "gcc" &&
4235             add_${pfx}cppflags -D__printf__=__gnu_printf__
4236     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4237         eval ${pfx}libc_type=msvcrt
4238         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4239         # 0x601 by default unless something else is set by the user.
4240         # This can easily lead to us detecting functions only present
4241         # in such new versions and producing binaries requiring windows 7.0.
4242         # Therefore explicitly set the default to XP unless the user has
4243         # set something else on the command line.
4244         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4245             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4246     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4247         eval ${pfx}libc_type=klibc
4248     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4249         eval ${pfx}libc_type=bionic
4250     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4251         eval ${pfx}libc_type=solaris
4252         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4253     fi
4254     check_${pfx}cc <<EOF
4255 #include <time.h>
4256 void *v = localtime_r;
4257 EOF
4258 test "$?" != 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
4259 #include <time.h>
4260 void *v = localtime_r;
4261 EOF
4262
4263 }
4264
4265 probe_libc
4266 test -n "$libc_type" && enable libc_$libc_type
4267 probe_libc host_
4268 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4269
4270 case $libc_type in
4271     bionic)
4272         add_compat strtod.o strtod=avpriv_strtod
4273         ;;
4274     msvcrt)
4275         add_compat strtod.o strtod=avpriv_strtod
4276         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4277                                      _snprintf=avpriv_snprintf  \
4278                                      vsnprintf=avpriv_vsnprintf
4279         ;;
4280 esac
4281
4282 # hacks for compiler/libc/os combinations
4283
4284 if enabled_all tms470 libc_glibc; then
4285     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4286     add_cppflags -D__USER_LABEL_PREFIX__=
4287     add_cppflags -D__builtin_memset=memset
4288     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4289     add_cflags   -pds=48    # incompatible redefinition of macro
4290 fi
4291
4292 if enabled_all ccc libc_glibc; then
4293     add_ldflags -Wl,-z,now  # calls to libots crash without this
4294 fi
4295
4296 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4297     add_cppflags '-I\$(SRC_PATH)/compat/float'
4298
4299 esc(){
4300     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4301 }
4302
4303 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4304
4305 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4306
4307 set_default $PATHS_LIST
4308 set_default nm
4309
4310 # we need to build at least one lib type
4311 if ! enabled_any static shared; then
4312     cat <<EOF
4313 At least one library type must be built.
4314 Specify --enable-static to build the static libraries or --enable-shared to
4315 build the shared libraries as well. To only build the shared libraries specify
4316 --disable-static in addition to --enable-shared.
4317 EOF
4318     exit 1;
4319 fi
4320
4321 die_license_disabled() {
4322     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4323 }
4324
4325 die_license_disabled_gpl() {
4326     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4327 }
4328
4329 die_license_disabled gpl frei0r
4330 die_license_disabled gpl libcdio
4331 die_license_disabled gpl libsmbclient
4332 die_license_disabled gpl libutvideo
4333 die_license_disabled gpl libvidstab
4334 die_license_disabled gpl libx264
4335 die_license_disabled gpl libx265
4336 die_license_disabled gpl libxavs
4337 die_license_disabled gpl libxvid
4338 die_license_disabled gpl libzvbi
4339 die_license_disabled gpl x11grab
4340
4341 die_license_disabled nonfree libaacplus
4342 die_license_disabled nonfree libfaac
4343 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4344 enabled gpl && die_license_disabled_gpl nonfree openssl
4345
4346 die_license_disabled version3 libopencore_amrnb
4347 die_license_disabled version3 libopencore_amrwb
4348 die_license_disabled version3 libsmbclient
4349 die_license_disabled version3 libvo_aacenc
4350 die_license_disabled version3 libvo_amrwbenc
4351
4352 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4353
4354 disabled optimizations || check_cflags -fomit-frame-pointer
4355
4356 enable_weak_pic() {
4357     disabled pic && return
4358     enable pic
4359     add_cppflags -DPIC
4360     case "$target_os" in
4361     mingw*|cygwin*)
4362         ;;
4363     *)
4364         add_cflags -fPIC
4365         ;;
4366     esac
4367     add_asflags  -fPIC
4368 }
4369
4370 enabled pic && enable_weak_pic
4371
4372 check_cc <<EOF || die "Symbol mangling check failed."
4373 int ff_extern;
4374 EOF
4375 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4376 extern_prefix=${sym%%ff_extern*}
4377
4378 check_cc <<EOF && enable_weak inline_asm
4379 void foo(void) { __asm__ volatile ("" ::); }
4380 EOF
4381
4382 _restrict=
4383 for restrict_keyword in restrict __restrict__ __restrict; do
4384     check_cc <<EOF && _restrict=$restrict_keyword && break
4385 void foo(char * $restrict_keyword p);
4386 EOF
4387 done
4388
4389 check_cc <<EOF && enable pragma_deprecated
4390 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4391 EOF
4392
4393 check_cc <<EOF && enable attribute_packed
4394 struct { int x; } __attribute__((packed)) x;
4395 EOF
4396
4397 check_cc <<EOF && enable attribute_may_alias
4398 union { int x; } __attribute__((may_alias)) x;
4399 EOF
4400
4401 check_cc <<EOF || die "endian test failed"
4402 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4403 EOF
4404 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4405
4406 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4407     if ! enabled bigendian && enabled altivec ;then
4408         enable vsx
4409     fi
4410 fi
4411
4412 check_gas() {
4413     log "check_gas using '$as' as AS"
4414     # :vararg is used on aarch64, arm and ppc altivec
4415     check_as <<EOF || return 1
4416 .macro m n, y:vararg=0
4417 \n: .int \y
4418 .endm
4419 m x
4420 EOF
4421     # .altmacro is only used in arm asm
4422     ! enabled arm || check_as <<EOF || return 1
4423 .altmacro
4424 EOF
4425     enable gnu_as
4426     return 0
4427 }
4428
4429 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4430     nogas=:
4431     enabled_any arm aarch64 && nogas=die
4432     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4433     as_noop=-v
4434
4435     case $as_type in
4436         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4437         gcc)  gaspp_as_type=gas ;;
4438         *)    gaspp_as_type=$as_type ;;
4439     esac
4440
4441     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4442
4443     test "${as#*gas-preprocessor.pl}" != "$as" ||
4444     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4445         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4446
4447     if ! check_gas ; then
4448         as=${gas:=$as}
4449         check_gas || \
4450             $nogas "GNU assembler not found, install/update gas-preprocessor"
4451     fi
4452
4453     check_as <<EOF && enable as_func
4454 .func test
4455 .endfunc
4456 EOF
4457 fi
4458
4459 check_inline_asm inline_asm_labels '"1:\n"'
4460
4461 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4462
4463 if enabled aarch64; then
4464     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4465     # internal assembler in clang 3.3 does not support this instruction
4466     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4467     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4468
4469     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4470
4471 elif enabled alpha; then
4472
4473     check_cflags -mieee
4474
4475 elif enabled arm; then
4476
4477     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4478 float func(float a, float b){ return a+b; }
4479 EOF
4480
4481     enabled thumb && check_cflags -mthumb || check_cflags -marm
4482
4483     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4484         enable vfp_args
4485     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4486         case "${cross_prefix:-$cc}" in
4487             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4488             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4489 __asm__ (".eabi_attribute 28, 1");
4490 int main(void) { return 0; }
4491 EOF
4492         esac
4493         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4494     fi
4495
4496     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4497     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4498     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4499     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4500     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4501     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4502     enabled setend  && check_insn setend  'setend be'
4503
4504     [ $target_os = linux ] || [ $target_os = android ] ||
4505         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4506             $ARCH_EXT_LIST_ARM
4507
4508     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4509
4510     check_as <<EOF && enable as_dn_directive
4511 ra .dn d0.i16
4512 .unreq ra
4513 EOF
4514
4515     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4516
4517 elif enabled mips; then
4518
4519     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4520     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4521      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4522     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4523      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4524     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4525      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4526     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4527      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4528
4529 elif enabled parisc; then
4530
4531     if enabled gcc; then
4532         case $($cc -dumpversion) in
4533             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4534         esac
4535     fi
4536
4537 elif enabled ppc; then
4538
4539     enable local_aligned_8 local_aligned_16 local_aligned_32
4540
4541     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4542     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4543     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4544     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4545
4546     # AltiVec flags: The FSF version of GCC differs from the Apple version
4547     if enabled altivec; then
4548         check_cflags -maltivec -mabi=altivec &&
4549         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4550         check_cflags -faltivec
4551
4552         # check if our compiler supports Motorola AltiVec C API
4553         check_cc <<EOF || disable altivec
4554 $inc_altivec_h
4555 int main(void) {
4556     vector signed int v1 = (vector signed int) { 0 };
4557     vector signed int v2 = (vector signed int) { 1 };
4558     v1 = vec_add(v1, v2);
4559     return 0;
4560 }
4561 EOF
4562
4563         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4564     fi
4565
4566     if enabled vsx; then
4567         check_cflags -mvsx
4568     fi
4569 elif enabled x86; then
4570
4571     check_builtin rdtsc    intrin.h   "__rdtsc()"
4572     check_builtin mm_empty mmintrin.h "_mm_empty()"
4573
4574     enable local_aligned_8 local_aligned_16 local_aligned_32
4575
4576     # check whether EBP is available on x86
4577     # As 'i' is stored on the stack, this program will crash
4578     # if the base pointer is used to access it because the
4579     # base pointer is cleared in the inline assembly code.
4580     check_exec_crash <<EOF && enable ebp_available
4581 volatile int i=0;
4582 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4583 return i;
4584 EOF
4585
4586     # check whether EBX is available on x86
4587     check_inline_asm ebx_available '""::"b"(0)' &&
4588         check_inline_asm ebx_available '"":::"%ebx"'
4589
4590     # check whether xmm clobbers are supported
4591     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4592
4593     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4594         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4595
4596     # check whether binutils is new enough to compile SSSE3/MMXEXT
4597     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4598     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4599
4600     if ! disabled_any asm mmx yasm; then
4601         if check_cmd $yasmexe --version; then
4602             enabled x86_64 && yasm_extra="-m amd64"
4603             yasm_debug="-g dwarf2"
4604         elif check_cmd nasm -v; then
4605             yasmexe=nasm
4606             yasm_debug="-g -F dwarf"
4607             if enabled x86_64; then
4608                 case "$objformat" in
4609                     elf)   objformat=elf64 ;;
4610                     win32) objformat=win64 ;;
4611                 esac
4612             fi
4613         fi
4614
4615         YASMFLAGS="-f $objformat $yasm_extra"
4616         enabled pic               && append YASMFLAGS "-DPIC"
4617         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4618         case "$objformat" in
4619             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4620         esac
4621
4622         check_yasm "movbe ecx, [5]" && enable yasm ||
4623             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4624         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4625         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4626         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4627         check_yasm "CPU amdnop" || disable cpunop
4628     fi
4629
4630     case "$cpu" in
4631         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4632             disable fast_clz
4633         ;;
4634     esac
4635
4636 fi
4637
4638 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4639
4640 check_ldflags -Wl,--as-needed
4641 check_ldflags -Wl,-z,noexecstack
4642
4643 if check_func dlopen; then
4644     ldl=
4645 elif check_func dlopen -ldl; then
4646     ldl=-ldl
4647 fi
4648
4649 if ! disabled network; then
4650     check_func getaddrinfo $network_extralibs
4651     check_func getservbyport $network_extralibs
4652     check_func inet_aton $network_extralibs
4653
4654     check_type netdb.h "struct addrinfo"
4655     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4656     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4657     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4658     check_type poll.h "struct pollfd"
4659     check_type netinet/sctp.h "struct sctp_event_subscribe"
4660     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4661     check_type netinet/in.h "struct sockaddr_in6"
4662     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4663     check_type "sys/types.h sys/socket.h" socklen_t
4664
4665     # Prefer arpa/inet.h over winsock2
4666     if check_header arpa/inet.h ; then
4667         check_func closesocket
4668     elif check_header winsock2.h ; then
4669         check_func_headers winsock2.h closesocket -lws2 &&
4670             network_extralibs="-lws2" ||
4671         { check_func_headers winsock2.h closesocket -lws2_32 &&
4672             network_extralibs="-lws2_32"; } || disable winsock2_h network
4673         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4674
4675         check_type ws2tcpip.h socklen_t
4676         check_type ws2tcpip.h "struct addrinfo"
4677         check_type ws2tcpip.h "struct group_source_req"
4678         check_type ws2tcpip.h "struct ip_mreq_source"
4679         check_type ws2tcpip.h "struct ipv6_mreq"
4680         check_type winsock2.h "struct pollfd"
4681         check_struct winsock2.h "struct sockaddr" sa_len
4682         check_type ws2tcpip.h "struct sockaddr_in6"
4683         check_type ws2tcpip.h "struct sockaddr_storage"
4684     else
4685         disable network
4686     fi
4687 fi
4688
4689 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4690 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
4691 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4692 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4693 check_builtin sarestart signal.h "SA_RESTART"
4694 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4695
4696 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4697 check_func  ${malloc_prefix}memalign            && enable memalign
4698 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4699
4700 check_func  access
4701 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4702 check_func  fcntl
4703 check_func  fork
4704 check_func  gethrtime
4705 check_func  getopt
4706 check_func  getrusage
4707 check_func  gettimeofday
4708 check_func  gmtime_r
4709 check_func  isatty
4710 check_func  localtime_r
4711 check_func  mach_absolute_time
4712 check_func  mkstemp
4713 check_func  mmap
4714 check_func  mprotect
4715 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4716 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4717 check_func  sched_getaffinity
4718 check_func  setrlimit
4719 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4720 check_func  strerror_r
4721 check_func  sysconf
4722 check_func  sysctl
4723 check_func  usleep
4724
4725 check_func_headers conio.h kbhit
4726 check_func_headers io.h setmode
4727 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4728 check_func_headers stdlib.h getenv
4729
4730 check_func_headers windows.h CoTaskMemFree -lole32
4731 check_func_headers windows.h GetProcessAffinityMask
4732 check_func_headers windows.h GetProcessTimes
4733 check_func_headers windows.h GetSystemTimeAsFileTime
4734 check_func_headers windows.h MapViewOfFile
4735 check_func_headers windows.h PeekNamedPipe
4736 check_func_headers windows.h SetConsoleTextAttribute
4737 check_func_headers windows.h Sleep
4738 check_func_headers windows.h VirtualAlloc
4739 check_struct windows.h "CONDITION_VARIABLE" Ptr
4740 check_func_headers glob.h glob
4741 enabled xlib &&
4742     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4743
4744 check_header cl/cl.h
4745 check_header direct.h
4746 check_header dlfcn.h
4747 check_header dxva.h
4748 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4749 check_header io.h
4750 check_header libcrystalhd/libcrystalhd_if.h
4751 check_header mach/mach_time.h
4752 check_header malloc.h
4753 check_header net/udplite.h
4754 check_header poll.h
4755 check_header sys/mman.h
4756 check_header sys/param.h
4757 check_header sys/resource.h
4758 check_header sys/select.h
4759 check_header sys/time.h
4760 check_header sys/un.h
4761 check_header termios.h
4762 check_header unistd.h
4763 check_header vdpau/vdpau.h
4764 check_header vdpau/vdpau_x11.h
4765 check_header VideoDecodeAcceleration/VDADecoder.h
4766 check_header windows.h
4767 check_header X11/extensions/XvMClib.h
4768 check_header asm/types.h
4769
4770 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4771 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4772 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4773
4774 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4775
4776 if ! disabled w32threads && ! enabled pthreads; then
4777     check_func_headers "windows.h process.h" _beginthreadex &&
4778         enable w32threads || disable w32threads
4779 fi
4780
4781 # check for some common methods of building with pthread support
4782 # do this before the optional library checks as some of them require pthreads
4783 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4784     enable pthreads
4785     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4786         add_cflags -pthread
4787         add_extralibs -pthread
4788     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4789         add_cflags -pthreads
4790         add_extralibs -pthreads
4791     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4792         add_cflags -ldl -pthread
4793         add_extralibs -ldl -pthread
4794     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4795         add_extralibs -lpthreadGC2
4796     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4797         :
4798     elif ! check_func pthread_join && ! check_func pthread_create; then
4799         disable pthreads
4800     fi
4801     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4802 fi
4803
4804
4805 if enabled pthreads; then
4806   check_func pthread_cancel
4807 fi
4808
4809 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4810 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4811 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
4812
4813 check_lib math.h sin -lm && LIBM="-lm"
4814 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4815
4816 atan2f_args=2
4817 ldexpf_args=2
4818 powf_args=2
4819
4820 for func in $MATH_FUNCS; do
4821     eval check_mathfunc $func \${${func}_args:-1}
4822 done
4823
4824 # these are off by default, so fail if requested and not available
4825 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4826 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4827                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4828                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4829 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4830 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4831 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4832 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4833 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4834 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4835 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4836 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4837 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4838 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4839                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4840                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4841 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4842 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4843 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4844 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"
4845 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4846 enabled fontconfig        && enable libfontconfig
4847 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4848 enabled libfreetype       && require_libfreetype
4849 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4850 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4851 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4852                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4853                                done || die "ERROR: libgsm not found"; }
4854 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4855 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4856 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4857 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4858 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4859 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4860 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4861 enabled libopenjpeg       && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
4862                                check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4863                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4864                                die "ERROR: libopenjpeg not found"; }
4865 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4866 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4867 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4868 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4869 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4870 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4871 enabled libsmbclient      && { { check_pkg_config smbclient libsmbclient.h smbc_init &&
4872                                  require_pkg_config smbclient libsmbclient.h smbc_init; } ||
4873                                  require smbclient libsmbclient.h smbc_init -lsmbclient; }
4874 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4875 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4876 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4877 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4878     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4879     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4880 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4881 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4882                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4883                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4884 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4885 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4886 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4887 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4888 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4889 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4890 enabled libvpx            && {
4891     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4892                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4893     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 ||
4894                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4895     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4896     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; } }
4897 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4898 enabled libwebp           && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
4899 enabled libx264           && { { check_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4900                                  require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode; } ||
4901                                { require libx264 x264.h x264_encoder_encode -lx264 &&
4902                                  warn "using libx264 without pkg-config"; } } &&
4903                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4904                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4905 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4906                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4907                                die "ERROR: libx265 version must be >= 17."; }
4908 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4909 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4910 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4911 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4912 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4913                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4914                                die "ERROR: openal not found"; } &&
4915                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4916                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4917 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4918                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4919                                die "ERROR: opencl not found"; } &&
4920                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4921                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4922                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4923 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4924                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4925                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4926                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4927                                die "ERROR: opengl not found."
4928                              }
4929 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4930                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4931                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4932                                die "ERROR: openssl not found"; }
4933 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4934
4935 if enabled gnutls; then
4936     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4937     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4938 fi
4939
4940 # libdc1394 check
4941 if enabled libdc1394; then
4942     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4943         enable libdc1394_2; } ||
4944     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4945         enable libdc1394_1; } ||
4946     die "ERROR: No version of libdc1394 found "
4947 fi
4948 if ! disabled sdl; then
4949     SDL_CONFIG="${cross_prefix}sdl-config"
4950     if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4951         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4952         check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4953         enable sdl
4954     else
4955         if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4956             sdl_cflags=$("${SDL_CONFIG}" --cflags)
4957             sdl_libs=$("${SDL_CONFIG}" --libs)
4958             check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4959             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4960             check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4961             enable sdl
4962         elif enabled sdl ; then
4963             die "ERROR: SDL not found"
4964         else
4965             disable sdl
4966         fi
4967     fi
4968 fi
4969 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4970
4971 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4972 enabled makeinfo && (makeinfo --version | \
4973                      grep -q 'makeinfo (GNU texinfo) 5' > /dev/null 2>&1) \
4974     && enable makeinfo_html || disable makeinfo_html
4975 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4976 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4977 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4978 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4979
4980 check_header linux/fb.h
4981 check_header linux/videodev.h
4982 check_header linux/videodev2.h
4983 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4984
4985 check_header sys/videoio.h
4986 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4987
4988 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4989 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4990 # w32api 3.12 had it defined wrong
4991 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4992
4993 check_type "dshow.h" IBaseFilter
4994
4995 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4996 { check_header dev/bktr/ioctl_meteor.h &&
4997   check_header dev/bktr/ioctl_bt848.h; } ||
4998 { check_header machine/ioctl_meteor.h &&
4999   check_header machine/ioctl_bt848.h; } ||
5000 { check_header dev/video/meteor/ioctl_meteor.h &&
5001   check_header dev/video/bktr/ioctl_bt848.h; } ||
5002 check_header dev/ic/bt8xx.h
5003
5004 check_header sndio.h
5005 if check_struct sys/soundcard.h audio_buf_info bytes; then
5006     enable_safe sys/soundcard.h
5007 else
5008     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5009     #include <sys/soundcard.h>
5010     audio_buf_info abc;
5011 EOF
5012 fi
5013 check_header soundcard.h
5014
5015 enabled_any alsa_indev alsa_outdev &&
5016     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5017
5018 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5019     check_func jack_port_get_latency_range -ljack
5020
5021 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5022
5023 if enabled libcdio; then
5024     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5025     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5026     die "ERROR: libcdio-paranoia not found"
5027 fi
5028
5029 enabled xlib &&
5030     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5031
5032 if ! disabled libxcb; then
5033     check_pkg_config xcb xcb/xcb.h xcb_connect || {
5034         enabled libxcb && die "ERROR: libxcb not found";
5035     } && disable x11grab && enable libxcb
5036
5037 if enabled libxcb; then
5038     disabled libxcb_shm || {
5039         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5040             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5041         } && check_header sys/shm.h && enable libxcb_shm; }
5042
5043     disabled libxcb_xfixes || {
5044         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5045             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5046         } && enable libxcb_xfixes; }
5047
5048     add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags
5049     add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs
5050 fi
5051 fi
5052
5053 if enabled x11grab; then
5054     enabled xlib || die "ERROR: Xlib not found"
5055     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5056     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5057 fi
5058
5059 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5060
5061 enabled dxva2api_h &&
5062     check_cc <<EOF && enable dxva2api_cobj
5063 #define _WIN32_WINNT 0x0600
5064 #define COBJMACROS
5065 #include <windows.h>
5066 #include <d3d9.h>
5067 #include <dxva2api.h>
5068 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5069 EOF
5070
5071 enabled vaapi &&
5072     check_lib va/va.h vaInitialize -lva ||
5073     disable vaapi
5074
5075 enabled vdpau &&
5076     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5077     disable vdpau
5078
5079 enabled vdpau && enabled xlib &&
5080     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5081     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5082     enable vdpau_x11
5083
5084 # Funny iconv installations are not unusual, so check it after all flags have been set
5085 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5086
5087 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5088
5089 # add some useful compiler flags if supported
5090 check_cflags -Wdeclaration-after-statement
5091 check_cflags -Wall
5092 check_cflags -Wdisabled-optimization
5093 check_cflags -Wpointer-arith
5094 check_cflags -Wredundant-decls
5095 check_cflags -Wwrite-strings
5096 check_cflags -Wtype-limits
5097 check_cflags -Wundef
5098 check_cflags -Wmissing-prototypes
5099 check_cflags -Wno-pointer-to-int-cast
5100 check_cflags -Wstrict-prototypes
5101 check_cflags -Wempty-body
5102 enabled extra_warnings && check_cflags -Winline
5103
5104 check_disable_warning(){
5105     warning_flag=-W${1#-Wno-}
5106     test_cflags $warning_flag && add_cflags $1
5107 }
5108
5109 check_disable_warning -Wno-parentheses
5110 check_disable_warning -Wno-switch
5111 check_disable_warning -Wno-format-zero-length
5112 check_disable_warning -Wno-pointer-sign
5113
5114 # add some linker flags
5115 check_ldflags -Wl,--warn-common
5116 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5117 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5118 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5119
5120 # add some strip flags
5121 # -wN '..@*' is more selective than -x, but not available everywhere.
5122 check_stripflags -wN \'..@*\' || check_stripflags -x
5123
5124 enabled neon_clobber_test &&
5125     check_ldflags -Wl,--wrap,avcodec_open2              \
5126                   -Wl,--wrap,avcodec_decode_audio4      \
5127                   -Wl,--wrap,avcodec_decode_video2      \
5128                   -Wl,--wrap,avcodec_decode_subtitle2   \
5129                   -Wl,--wrap,avcodec_encode_audio2      \
5130                   -Wl,--wrap,avcodec_encode_video2      \
5131                   -Wl,--wrap,avcodec_encode_subtitle    \
5132                   -Wl,--wrap,swr_convert                \
5133                   -Wl,--wrap,avresample_convert ||
5134     disable neon_clobber_test
5135
5136 enabled xmm_clobber_test &&
5137     check_ldflags -Wl,--wrap,avcodec_open2              \
5138                   -Wl,--wrap,avcodec_decode_audio4      \
5139                   -Wl,--wrap,avcodec_decode_video2      \
5140                   -Wl,--wrap,avcodec_decode_subtitle2   \
5141                   -Wl,--wrap,avcodec_encode_audio2      \
5142                   -Wl,--wrap,avcodec_encode_video       \
5143                   -Wl,--wrap,avcodec_encode_video2      \
5144                   -Wl,--wrap,avcodec_encode_subtitle    \
5145                   -Wl,--wrap,swr_convert                \
5146                   -Wl,--wrap,avresample_convert         \
5147                   -Wl,--wrap,sws_scale ||
5148     disable xmm_clobber_test
5149
5150 echo "X{};" > $TMPV
5151 if test_ldflags -Wl,--version-script,$TMPV; then
5152     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5153     check_cc <<EOF && enable symver_asm_label
5154 void ff_foo(void) __asm__ ("av_foo@VERSION");
5155 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5156 EOF
5157     check_cc <<EOF && enable symver_gnu_asm
5158 __asm__(".symver ff_foo,av_foo@VERSION");
5159 void ff_foo(void) {}
5160 EOF
5161 fi
5162
5163 if [ -z "$optflags" ]; then
5164     if enabled small; then
5165         optflags=$cflags_size
5166     elif enabled optimizations; then
5167         optflags=$cflags_speed
5168     else
5169         optflags=$cflags_noopt
5170     fi
5171 fi
5172
5173 check_optflags(){
5174     check_cflags "$@"
5175     enabled lto && check_ldflags "$@"
5176 }
5177
5178
5179 if enabled lto; then
5180     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5181     check_cflags  -flto
5182     check_ldflags -flto $cpuflags
5183     disable inline_asm_direct_symbol_refs
5184 fi
5185
5186 check_optflags $optflags
5187 check_optflags -fno-math-errno
5188 check_optflags -fno-signed-zeros
5189
5190 enabled ftrapv && check_cflags -ftrapv
5191
5192 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5193 int x;
5194 EOF
5195
5196
5197 if enabled icc; then
5198     # Just warnings, no remarks
5199     check_cflags -w1
5200     # -wd: Disable following warnings
5201     # 144, 167, 556: -Wno-pointer-sign
5202     # 188: enumerated type mixed with another type
5203     # 1292: attribute "foo" ignored
5204     # 1419: external declaration in primary source file
5205     # 10006: ignoring unknown option -fno-signed-zeros
5206     # 10148: ignoring unknown option -Wno-parentheses
5207     # 10156: ignoring option '-W'; no argument required
5208     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5209     # 11030: Warning unknown option --as-needed
5210     # 10156: ignoring option '-export'; no argument required
5211     check_ldflags -wd10156,11030
5212     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5213     enable ebp_available
5214     # The test above does not test linking
5215     enabled lto && disable symver_asm_label
5216     if enabled x86_32; then
5217         icc_version=$($cc -dumpversion)
5218         test ${icc_version%%.*} -ge 11 &&
5219             check_cflags -falign-stack=maintain-16-byte ||
5220             disable aligned_stack
5221     fi
5222 elif enabled ccc; then
5223     # disable some annoying warnings
5224     add_cflags -msg_disable bitnotint
5225     add_cflags -msg_disable mixfuncvoid
5226     add_cflags -msg_disable nonstandcast
5227     add_cflags -msg_disable unsupieee
5228 elif enabled gcc; then
5229     check_optflags -fno-tree-vectorize
5230     check_cflags -Werror=format-security
5231     check_cflags -Werror=implicit-function-declaration
5232     check_cflags -Werror=missing-prototypes
5233     check_cflags -Werror=return-type
5234     check_cflags -Werror=vla
5235     check_cflags -Wformat
5236     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5237 elif enabled llvm_gcc; then
5238     check_cflags -mllvm -stack-alignment=16
5239 elif enabled clang; then
5240     check_cflags -mllvm -stack-alignment=16
5241     check_cflags -Qunused-arguments
5242     check_cflags -Werror=implicit-function-declaration
5243     check_cflags -Werror=missing-prototypes
5244     check_cflags -Werror=return-type
5245 elif enabled cparser; then
5246     add_cflags -Wno-missing-variable-declarations
5247     add_cflags -Wno-empty-statement
5248 elif enabled armcc; then
5249     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5250     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5251     # 2523: use of inline assembly is deprecated
5252     add_cflags -W${armcc_opt},--diag_suppress=2523
5253     add_cflags -W${armcc_opt},--diag_suppress=1207
5254     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5255     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5256     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5257     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5258 elif enabled tms470; then
5259     add_cflags -pds=824 -pds=837
5260     disable inline_asm
5261 elif enabled pathscale; then
5262     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5263 elif enabled_any msvc icl; then
5264     enabled x86_32 && disable aligned_stack
5265     enabled_all x86_32 debug && add_cflags -Oy-
5266     enabled debug && add_ldflags -debug
5267     enable pragma_deprecated
5268     if enabled icl; then
5269         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5270         # (correctly) on icl 13.x.
5271         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5272             add_cflags -Qansi-alias
5273         # Some inline asm is not compilable in debug
5274         if enabled debug; then
5275             disable ebp_available
5276             disable ebx_available
5277         fi
5278     fi
5279     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5280     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5281 fi
5282
5283 case $as_type in
5284     clang)
5285         add_asflags -Qunused-arguments
5286     ;;
5287 esac
5288
5289 case $ld_type in
5290     clang)
5291         check_ldflags -Qunused-arguments
5292     ;;
5293 esac
5294
5295 case $target_os in
5296     osf1)
5297         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5298     ;;
5299     plan9)
5300         add_cppflags -Dmain=plan9_main
5301     ;;
5302 esac
5303
5304 enable frame_thread_encoder
5305
5306 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5307
5308 check_deps $CONFIG_LIST       \
5309            $CONFIG_EXTRA      \
5310            $HAVE_LIST         \
5311            $ALL_COMPONENTS    \
5312
5313 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"
5314
5315
5316 if test $target_os = "haiku"; then
5317     disable memalign
5318     disable posix_memalign
5319 fi
5320
5321 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5322     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5323     enable dxva2_lib
5324
5325 ! enabled_any memalign posix_memalign aligned_malloc &&
5326     enabled simd_align_16 && enable memalign_hack
5327
5328 # add_dep lib dep
5329 # -> enable ${lib}_deps_${dep}
5330 # -> add $dep to ${lib}_deps only once
5331 add_dep() {
5332     lib=$1
5333     dep=$2
5334     enabled "${lib}_deps_${dep}" && return 0
5335     enable  "${lib}_deps_${dep}"
5336     prepend "${lib}_deps" $dep
5337 }
5338
5339 # merge deps lib components
5340 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5341 merge_deps() {
5342     lib=$1
5343     shift
5344     for comp in $*; do
5345         enabled $comp || continue
5346         eval "dep=\"\$${comp}_deps\""
5347         for d in $dep; do
5348             add_dep $lib $d
5349         done
5350     done
5351 }
5352
5353 merge_deps libavfilter $FILTER_LIST
5354
5355 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5356
5357 for thread in $THREADS_LIST; do
5358     if enabled $thread; then
5359         test -n "$thread_type" &&
5360             die "ERROR: Only one thread type must be selected." ||
5361             thread_type="$thread"
5362     fi
5363 done
5364
5365 enabled zlib && add_cppflags -DZLIB_CONST
5366
5367 # conditional library dependencies, in linking order
5368 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5369 enabled aresample_filter    && prepend avfilter_deps "swresample"
5370 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5371 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5372 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5373 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5374 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5375 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5376 enabled mp_filter           && prepend avfilter_deps "avcodec"
5377 enabled pan_filter          && prepend avfilter_deps "swresample"
5378 enabled pp_filter           && prepend avfilter_deps "postproc"
5379 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5380 enabled resample_filter && prepend avfilter_deps "avresample"
5381 enabled sab_filter          && prepend avfilter_deps "swscale"
5382 enabled scale_filter    && prepend avfilter_deps "swscale"
5383 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5384 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5385 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5386
5387 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5388
5389 enabled opus_decoder    && prepend avcodec_deps "swresample"
5390
5391 expand_deps(){
5392     lib_deps=${1}_deps
5393     eval "deps=\$$lib_deps"
5394     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5395     unique $lib_deps
5396 }
5397
5398 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5399 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5400
5401 map 'expand_deps $v' $LIBRARY_LIST
5402
5403 echo "install prefix            $prefix"
5404 echo "source path               $source_path"
5405 echo "C compiler                $cc"
5406 echo "C library                 $libc_type"
5407 if test "$host_cc" != "$cc"; then
5408     echo "host C compiler           $host_cc"
5409     echo "host C library            $host_libc_type"
5410 fi
5411 echo "ARCH                      $arch ($cpu)"
5412 if test "$build_suffix" != ""; then
5413     echo "build suffix              $build_suffix"
5414 fi
5415 if test "$progs_suffix" != ""; then
5416     echo "progs suffix              $progs_suffix"
5417 fi
5418 if test "$extra_version" != ""; then
5419     echo "version string suffix     $extra_version"
5420 fi
5421 echo "big-endian                ${bigendian-no}"
5422 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5423 if enabled x86; then
5424     echo "${yasmexe}                      ${yasm-no}"
5425     echo "MMX enabled               ${mmx-no}"
5426     echo "MMXEXT enabled            ${mmxext-no}"
5427     echo "3DNow! enabled            ${amd3dnow-no}"
5428     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5429     echo "SSE enabled               ${sse-no}"
5430     echo "SSSE3 enabled             ${ssse3-no}"
5431     echo "AVX enabled               ${avx-no}"
5432     echo "XOP enabled               ${xop-no}"
5433     echo "FMA3 enabled              ${fma3-no}"
5434     echo "FMA4 enabled              ${fma4-no}"
5435     echo "i686 features enabled     ${i686-no}"
5436     echo "CMOV is fast              ${fast_cmov-no}"
5437     echo "EBX available             ${ebx_available-no}"
5438     echo "EBP available             ${ebp_available-no}"
5439 fi
5440 if enabled aarch64; then
5441     echo "NEON enabled              ${neon-no}"
5442     echo "VFP enabled               ${vfp-no}"
5443 fi
5444 if enabled arm; then
5445     echo "ARMv5TE enabled           ${armv5te-no}"
5446     echo "ARMv6 enabled             ${armv6-no}"
5447     echo "ARMv6T2 enabled           ${armv6t2-no}"
5448     echo "VFP enabled               ${vfp-no}"
5449     echo "NEON enabled              ${neon-no}"
5450     echo "THUMB enabled             ${thumb-no}"
5451 fi
5452 if enabled mips; then
5453     echo "MIPS FPU enabled          ${mipsfpu-no}"
5454     echo "MIPS32R2 enabled          ${mips32r2-no}"
5455     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5456     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5457 fi
5458 if enabled ppc; then
5459     echo "AltiVec enabled           ${altivec-no}"
5460     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5461     echo "PPC VSX optimizations     ${vsx-no}"
5462     echo "dcbzl available           ${dcbzl-no}"
5463 fi
5464 echo "debug symbols             ${debug-no}"
5465 echo "strip symbols             ${stripping-no}"
5466 echo "optimize for size         ${small-no}"
5467 echo "optimizations             ${optimizations-no}"
5468 echo "static                    ${static-no}"
5469 echo "shared                    ${shared-no}"
5470 echo "postprocessing support    ${postproc-no}"
5471 echo "new filter support        ${avfilter-no}"
5472 echo "network support           ${network-no}"
5473 echo "threading support         ${thread_type-no}"
5474 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5475 echo "SDL support               ${sdl-no}"
5476 echo "opencl enabled            ${opencl-no}"
5477 echo "texi2html enabled         ${texi2html-no}"
5478 echo "perl enabled              ${perl-no}"
5479 echo "pod2man enabled           ${pod2man-no}"
5480 echo "makeinfo enabled          ${makeinfo-no}"
5481 echo "makeinfo supports HTML    ${makeinfo_html-no}"
5482 test -n "$random_seed" &&
5483     echo "random seed               ${random_seed}"
5484 echo
5485
5486 echo "External libraries:"
5487 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5488 echo
5489
5490 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5491     echo "Enabled ${type}s:"
5492     eval list=\$$(toupper $type)_LIST
5493     print_enabled '_*' $list | print_3_columns
5494     echo
5495 done
5496
5497 license="LGPL version 2.1 or later"
5498 if enabled nonfree; then
5499     license="nonfree and unredistributable"
5500 elif enabled gplv3; then
5501     license="GPL version 3 or later"
5502 elif enabled lgplv3; then
5503     license="LGPL version 3 or later"
5504 elif enabled gpl; then
5505     license="GPL version 2 or later"
5506 fi
5507
5508 echo "License: $license"
5509
5510 echo "Creating config.mak, config.h, and doc/config.texi..."
5511
5512 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5513
5514 enabled stripping || strip="echo skipping strip"
5515
5516 config_files="$TMPH config.mak doc/config.texi"
5517
5518 cat > config.mak <<EOF
5519 # Automatically generated by configure - do not modify!
5520 ifndef FFMPEG_CONFIG_MAK
5521 FFMPEG_CONFIG_MAK=1
5522 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5523 prefix=$prefix
5524 LIBDIR=\$(DESTDIR)$libdir
5525 SHLIBDIR=\$(DESTDIR)$shlibdir
5526 INCDIR=\$(DESTDIR)$incdir
5527 BINDIR=\$(DESTDIR)$bindir
5528 DATADIR=\$(DESTDIR)$datadir
5529 DOCDIR=\$(DESTDIR)$docdir
5530 MANDIR=\$(DESTDIR)$mandir
5531 SRC_PATH=$source_path
5532 ifndef MAIN_MAKEFILE
5533 SRC_PATH:=\$(SRC_PATH:.%=..%)
5534 endif
5535 CC_IDENT=$cc_ident
5536 ARCH=$arch
5537 INTRINSICS=$intrinsics
5538 CC=$cc
5539 CXX=$cxx
5540 AS=$as
5541 LD=$ld
5542 DEPCC=$dep_cc
5543 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5544 DEPAS=$as
5545 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5546 YASM=$yasmexe
5547 DEPYASM=$yasmexe
5548 AR=$ar
5549 ARFLAGS=$arflags
5550 AR_O=$ar_o
5551 RANLIB=$ranlib
5552 STRIP=$strip
5553 CP=cp -p
5554 LN_S=$ln_s
5555 CPPFLAGS=$CPPFLAGS
5556 CFLAGS=$CFLAGS
5557 CXXFLAGS=$CXXFLAGS
5558 ASFLAGS=$ASFLAGS
5559 AS_C=$AS_C
5560 AS_O=$AS_O
5561 CC_C=$CC_C
5562 CC_E=$CC_E
5563 CC_O=$CC_O
5564 CXX_C=$CXX_C
5565 CXX_O=$CXX_O
5566 LD_O=$LD_O
5567 LD_LIB=$LD_LIB
5568 LD_PATH=$LD_PATH
5569 DLLTOOL=$dlltool
5570 WINDRES=$windres
5571 DEPWINDRES=$dep_cc
5572 DOXYGEN=$doxygen
5573 LDFLAGS=$LDFLAGS
5574 LDEXEFLAGS=$LDEXEFLAGS
5575 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5576 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5577 YASMFLAGS=$YASMFLAGS
5578 BUILDSUF=$build_suffix
5579 PROGSSUF=$progs_suffix
5580 FULLNAME=$FULLNAME
5581 LIBPREF=$LIBPREF
5582 LIBSUF=$LIBSUF
5583 LIBNAME=$LIBNAME
5584 SLIBPREF=$SLIBPREF
5585 SLIBSUF=$SLIBSUF
5586 EXESUF=$EXESUF
5587 EXTRA_VERSION=$extra_version
5588 CCDEP=$CCDEP
5589 CXXDEP=$CXXDEP
5590 CCDEP_FLAGS=$CCDEP_FLAGS
5591 ASDEP=$ASDEP
5592 ASDEP_FLAGS=$ASDEP_FLAGS
5593 CC_DEPFLAGS=$CC_DEPFLAGS
5594 AS_DEPFLAGS=$AS_DEPFLAGS
5595 HOSTCC=$host_cc
5596 HOSTLD=$host_ld
5597 HOSTCFLAGS=$host_cflags
5598 HOSTCPPFLAGS=$host_cppflags
5599 HOSTEXESUF=$HOSTEXESUF
5600 HOSTLDFLAGS=$host_ldflags
5601 HOSTLIBS=$host_libs
5602 DEPHOSTCC=$host_cc
5603 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5604 HOSTCCDEP=$HOSTCCDEP
5605 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5606 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5607 HOSTCC_C=$HOSTCC_C
5608 HOSTCC_O=$HOSTCC_O
5609 HOSTLD_O=$HOSTLD_O
5610 TARGET_EXEC=$target_exec $target_exec_args
5611 TARGET_PATH=$target_path
5612 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5613 CFLAGS-ffplay=$sdl_cflags
5614 ZLIB=$($ldflags_filter -lz)
5615 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5616 EXTRALIBS=$extralibs
5617 COMPAT_OBJS=$compat_objs
5618 EXEOBJS=$exeobjs
5619 INSTALL=$install
5620 LIBTARGET=${LIBTARGET}
5621 SLIBNAME=${SLIBNAME}
5622 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5623 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5624 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5625 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5626 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5627 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5628 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5629 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5630 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5631 NOREDZONE_FLAGS=$noredzone_flags
5632 EOF
5633
5634 get_version(){
5635     lcname=lib${1}
5636     name=$(toupper $lcname)
5637     file=$source_path/$lcname/version.h
5638     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5639     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5640     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5641     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5642     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5643     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5644 }
5645
5646 map 'get_version $v' $LIBRARY_LIST
5647
5648 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5649
5650 print_program_libs(){
5651     eval "program_libs=\$${1}_libs"
5652     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5653 }
5654
5655 map 'print_program_libs $v' $PROGRAM_LIST
5656
5657 cat > $TMPH <<EOF
5658 /* Automatically generated by configure - do not modify! */
5659 #ifndef FFMPEG_CONFIG_H
5660 #define FFMPEG_CONFIG_H
5661 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5662 #define FFMPEG_LICENSE "$(c_escape $license)"
5663 #define CONFIG_THIS_YEAR 2014
5664 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5665 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5666 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5667 #define av_restrict $_restrict
5668 #define EXTERN_PREFIX "${extern_prefix}"
5669 #define EXTERN_ASM ${extern_prefix}
5670 #define BUILDSUF "$build_suffix"
5671 #define SLIBSUF "$SLIBSUF"
5672 #define HAVE_MMX2 HAVE_MMXEXT
5673 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5674 EOF
5675
5676 test -n "$assert_level" &&
5677     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5678
5679 test -n "$malloc_prefix" &&
5680     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5681
5682 if enabled yasm; then
5683     append config_files $TMPASM
5684     printf '' >$TMPASM
5685 fi
5686
5687 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5688
5689
5690 mkdir -p doc
5691 echo "@c auto-generated by configure" > doc/config.texi
5692
5693 print_config ARCH_   "$config_files" $ARCH_LIST
5694 print_config HAVE_   "$config_files" $HAVE_LIST
5695 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5696                                      $CONFIG_EXTRA      \
5697                                      $ALL_COMPONENTS    \
5698
5699 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5700 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5701
5702 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5703 cp_if_changed $TMPH config.h
5704 touch .config
5705
5706 enabled yasm && cp_if_changed $TMPASM config.asm
5707
5708 cat > $TMPH <<EOF
5709 /* Generated by ffconf */
5710 #ifndef AVUTIL_AVCONFIG_H
5711 #define AVUTIL_AVCONFIG_H
5712 EOF
5713
5714 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5715
5716 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5717
5718 cp_if_changed $TMPH libavutil/avconfig.h
5719
5720 if test -n "$WARNINGS"; then
5721     printf "\n$WARNINGS"
5722     enabled fatal_warnings && exit 1
5723 fi
5724
5725 # build pkg-config files
5726
5727 lib_version(){
5728     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5729 }
5730
5731 pkgconfig_generate(){
5732     name=$1
5733     shortname=${name#lib}${build_suffix}
5734     comment=$2
5735     version=$3
5736     libs=$4
5737     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5738     requires=${requires%, }
5739     enabled ${name#lib} || return 0
5740     mkdir -p $name
5741     cat <<EOF > $name/$name${build_suffix}.pc
5742 prefix=$prefix
5743 exec_prefix=\${prefix}
5744 libdir=$libdir
5745 includedir=$incdir
5746
5747 Name: $name
5748 Description: $comment
5749 Version: $version
5750 Requires: $(enabled shared || echo $requires)
5751 Requires.private: $(enabled shared && echo $requires)
5752 Conflicts:
5753 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5754 Libs.private: $(enabled shared && echo $libs)
5755 Cflags: -I\${includedir}
5756 EOF
5757
5758 mkdir -p doc/examples/pc-uninstalled
5759 includedir=${source_path}
5760 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5761     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5762 prefix=
5763 exec_prefix=
5764 libdir=\${pcfiledir}/../../../$name
5765 includedir=${includedir}
5766
5767 Name: $name
5768 Description: $comment
5769 Version: $version
5770 Requires: $requires
5771 Conflicts:
5772 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5773 Cflags: -I\${includedir}
5774 EOF
5775 }
5776
5777 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
5778 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5779 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5780 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5781 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5782 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5783 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
5784 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5785 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"