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-pixelutils     disable pixel utils in libavutil
 149
 150 Hardware accelerators:
 151   --disable-dxva2          disable DXVA2 code [autodetect]
 152   --disable-vaapi          disable VAAPI code [autodetect]
 153   --disable-vda            disable VDA code [autodetect]
 154   --disable-vdpau          disable VDPAU code [autodetect]
 155
 156 Individual component options:
 157   --disable-everything     disable all components listed below
 158   --disable-encoder=NAME   disable encoder NAME
 159   --enable-encoder=NAME    enable encoder NAME
 160   --disable-encoders       disable all encoders
 161   --disable-decoder=NAME   disable decoder NAME
 162   --enable-decoder=NAME    enable decoder NAME
 163   --disable-decoders       disable all decoders
 164   --disable-hwaccel=NAME   disable hwaccel NAME
 165   --enable-hwaccel=NAME    enable hwaccel NAME
 166   --disable-hwaccels       disable all hwaccels
 167   --disable-muxer=NAME     disable muxer NAME
 168   --enable-muxer=NAME      enable muxer NAME
 169   --disable-muxers         disable all muxers
 170   --disable-demuxer=NAME   disable demuxer NAME
 171   --enable-demuxer=NAME    enable demuxer NAME
 172   --disable-demuxers       disable all demuxers
 173   --enable-parser=NAME     enable parser NAME
 174   --disable-parser=NAME    disable parser NAME
 175   --disable-parsers        disable all parsers
 176   --enable-bsf=NAME        enable bitstream filter NAME
 177   --disable-bsf=NAME       disable bitstream filter NAME
 178   --disable-bsfs           disable all bitstream filters
 179   --enable-protocol=NAME   enable protocol NAME
 180   --disable-protocol=NAME  disable protocol NAME
 181   --disable-protocols      disable all protocols
 182   --enable-indev=NAME      enable input device NAME
 183   --disable-indev=NAME     disable input device NAME
 184   --disable-indevs         disable input devices
 185   --enable-outdev=NAME     enable output device NAME
 186   --disable-outdev=NAME    disable output device NAME
 187   --disable-outdevs        disable output devices
 188   --disable-devices        disable all devices
 189   --enable-filter=NAME     enable filter NAME
 190   --disable-filter=NAME    disable filter NAME
 191   --disable-filters        disable all filters
 192
 193 External library support:
 194   --enable-avisynth        enable reading of AviSynth script files [no]
 195   --disable-bzlib          disable bzlib [autodetect]
 196   --enable-fontconfig      enable fontconfig
 197   --enable-frei0r          enable frei0r video filtering
 198   --enable-gnutls          enable gnutls [no]
 199   --disable-iconv          disable iconv [autodetect]
 200   --enable-ladspa          enable LADSPA audio filtering
 201   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 202   --enable-libass          enable libass subtitles rendering [no]
 203   --enable-libbluray       enable BluRay reading using libbluray [no]
 204   --enable-libbs2b         enable bs2b DSP library [no]
 205   --enable-libcaca         enable textual display using libcaca
 206   --enable-libcelt         enable CELT decoding via libcelt [no]
 207   --enable-libcdio         enable audio CD grabbing with libcdio
 208   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 209                            and libraw1394 [no]
 210   --enable-libfaac         enable AAC encoding via libfaac [no]
 211   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 212   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 213   --enable-libfreetype     enable libfreetype [no]
 214   --enable-libfribidi      enable libfribidi [no]
 215   --enable-libgme          enable Game Music Emu via libgme [no]
 216   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 217   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 218   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 219   --enable-libmodplug      enable ModPlug via libmodplug [no]
 220   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 221   --enable-libnut          enable NUT (de)muxing via libnut,
 222                            native (de)muxer exists [no]
 223   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 224   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 225   --enable-libopencv       enable video filtering via libopencv [no]
 226   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 227   --enable-libopus         enable Opus de/encoding via libopus [no]
 228   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 229   --enable-libquvi         enable quvi input via libquvi [no]
 230   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 231   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 232   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 233   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 234   --enable-libsoxr         enable Include libsoxr resampling [no]
 235   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 236   --enable-libssh          enable SFTP protocol via libssh [no]
 237   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 238   --enable-libtheora       enable Theora encoding via libtheora [no]
 239   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 240   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 241   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 242   --enable-libvidstab      enable video stabilization using vid.stab [no]
 243   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 244   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 245   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 246                            native implementation exists [no]
 247   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 248   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 249   --enable-libwebp         enable WebP encoding via libwebp [no]
 250   --enable-libx264         enable H.264 encoding via x264 [no]
 251   --enable-libx265         enable HEVC encoding via x265 [no]
 252   --enable-libxavs         enable AVS encoding via xavs [no]
 253   --enable-libxvid         enable Xvid encoding via xvidcore,
 254                            native MPEG-4/Xvid encoder exists [no]
 255   --enable-libzmq          enable message passing via libzmq [no]
 256   --enable-libzvbi         enable teletext support via libzvbi [no]
 257   --disable-lzma           disable lzma [autodetect]
 258   --enable-decklink        enable Blackmagick DeckLink output [no]
 259   --enable-openal          enable OpenAL 1.1 capture support [no]
 260   --enable-opencl          enable OpenCL code
 261   --enable-opengl          enable OpenGL rendering [no]
 262   --enable-openssl         enable openssl [no]
 263   --enable-x11grab         enable X11 grabbing [no]
 264   --disable-xlib           disable xlib [autodetect]
 265   --disable-zlib           disable zlib [autodetect]
 266
 267 Toolchain options:
 268   --arch=ARCH              select architecture [$arch]
 269   --cpu=CPU                select the minimum required CPU (affects
 270                            instruction selection, may crash on older CPUs)
 271   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 272   --progs-suffix=SUFFIX    program name suffix []
 273   --enable-cross-compile   assume a cross-compiler is used
 274   --sysroot=PATH           root of cross-build tree
 275   --sysinclude=PATH        location of cross-build system headers
 276   --target-os=OS           compiler targets OS [$target_os]
 277   --target-exec=CMD        command to run executables on target
 278   --target-path=DIR        path to view of build directory on target
 279   --target-samples=DIR     path to samples directory on target
 280   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 281   --toolchain=NAME         set tool defaults according to NAME
 282   --nm=NM                  use nm tool NM [$nm_default]
 283   --ar=AR                  use archive tool AR [$ar_default]
 284   --as=AS                  use assembler AS [$as_default]
 285   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 286   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 287   --cc=CC                  use C compiler CC [$cc_default]
 288   --cxx=CXX                use C compiler CXX [$cxx_default]
 289   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 290   --ld=LD                  use linker LD [$ld_default]
 291   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 292   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 293   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 294   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 295   --host-cc=HOSTCC         use host C compiler HOSTCC
 296   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 297   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 298   --host-ld=HOSTLD         use host linker HOSTLD
 299   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 300   --host-libs=HLIBS        use libs HLIBS when linking for host
 301   --host-os=OS             compiler host OS [$target_os]
 302   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 303   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 304   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 305   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 306   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 307   --extra-version=STRING   version string suffix []
 308   --optflags=OPTFLAGS      override optimization-related compiler flags
 309   --build-suffix=SUFFIX    library name suffix []
 310   --enable-pic             build position-independent code
 311   --enable-thumb           compile for Thumb instruction set
 312   --enable-lto             use link-time optimization
 313
 314 Advanced options (experts only):
 315   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 316   --disable-symver         disable symbol versioning
 317   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 318   --disable-safe-bitstream-reader
 319                            disable buffer boundary checking in bitreaders
 320                            (faster, but may crash)
 321   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 322   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 323
 324 Optimization options (experts only):
 325   --disable-asm            disable all assembly optimizations
 326   --disable-altivec        disable AltiVec optimizations
 327   --disable-amd3dnow       disable 3DNow! optimizations
 328   --disable-amd3dnowext    disable 3DNow! extended optimizations
 329   --disable-mmx            disable MMX optimizations
 330   --disable-mmxext         disable MMXEXT optimizations
 331   --disable-sse            disable SSE optimizations
 332   --disable-sse2           disable SSE2 optimizations
 333   --disable-sse3           disable SSE3 optimizations
 334   --disable-ssse3          disable SSSE3 optimizations
 335   --disable-sse4           disable SSE4 optimizations
 336   --disable-sse42          disable SSE4.2 optimizations
 337   --disable-avx            disable AVX optimizations
 338   --disable-xop            disable XOP optimizations
 339   --disable-fma3           disable FMA3 optimizations
 340   --disable-fma4           disable FMA4 optimizations
 341   --disable-avx2           disable AVX2 optimizations
 342   --disable-armv5te        disable armv5te optimizations
 343   --disable-armv6          disable armv6 optimizations
 344   --disable-armv6t2        disable armv6t2 optimizations
 345   --disable-vfp            disable VFP optimizations
 346   --disable-neon           disable NEON optimizations
 347   --disable-inline-asm     disable use of inline assembly
 348   --disable-yasm           disable use of nasm/yasm assembly
 349   --disable-mips32r2       disable MIPS32R2 optimizations
 350   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 351   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 352   --disable-mipsfpu        disable floating point MIPS optimizations
 353   --disable-fast-unaligned consider unaligned accesses slow
 354
 355 Developer options (useful when working on FFmpeg itself):
 356   --disable-debug          disable debugging symbols
 357   --enable-debug=LEVEL     set the debug level [$debuglevel]
 358   --disable-optimizations  disable compiler optimizations
 359   --enable-extra-warnings  enable more compiler warnings
 360   --disable-stripping      disable stripping of executables and shared libraries
 361   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 362                            2 causes a slowdown at runtime.
 363   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 364   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 365                            leaks and errors, using the specified valgrind binary.
 366                            Cannot be combined with --target-exec
 367   --enable-ftrapv          Trap arithmetic overflows
 368   --samples=PATH           location of test samples for FATE, if not set use
 369                            \$FATE_SAMPLES at make invocation time.
 370   --enable-neon-clobber-test check NEON registers for clobbering (should be
 371                            used only for debugging purposes)
 372   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 373                            should be used only for debugging purposes)
 374   --enable-random          randomly enable/disable components
 375   --disable-random
 376   --enable-random=LIST     randomly enable/disable specific components or
 377   --disable-random=LIST    component groups. LIST is a comma-separated list
 378                            of NAME[:PROB] entries where NAME is a component
 379                            (group) and PROB the probability associated with
 380                            NAME (default 0.5).
 381   --random-seed=VALUE      seed value for --enable/disable-random
 382
 383 NOTE: Object files are built at the place where configure is launched.
 384 EOF
 385   exit 0
 386 }
 387
 388 quotes='""'
 389
 390 log(){
 391     echo "$@" >> $logfile
 392 }
 393
 394 log_file(){
 395     log BEGIN $1
 396     pr -n -t $1 >> $logfile
 397     log END $1
 398 }
 399
 400 echolog(){
 401     log "$@"
 402     echo "$@"
 403 }
 404
 405 warn(){
 406     log "WARNING: $*"
 407     WARNINGS="${WARNINGS}WARNING: $*\n"
 408 }
 409
 410 die(){
 411     echolog "$@"
 412     cat <<EOF
 413
 414 If you think configure made a mistake, make sure you are using the latest
 415 version from Git.  If the latest version fails, report the problem to the
 416 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 417 EOF
 418     if disabled logging; then
 419         cat <<EOF
 420 Rerun configure with logging enabled (do not use --disable-logging), and
 421 include the log this produces with your report.
 422 EOF
 423     else
 424         cat <<EOF
 425 Include the log file "$logfile" produced by configure as this will help
 426 solve the problem.
 427 EOF
 428     fi
 429     exit 1
 430 }
 431
 432 # Avoid locale weirdness, besides we really just want to translate ASCII.
 433 toupper(){
 434     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 435 }
 436
 437 tolower(){
 438     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 439 }
 440
 441 c_escape(){
 442     echo "$*" | sed 's/["\\]/\\\0/g'
 443 }
 444
 445 sh_quote(){
 446     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 447     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 448     echo "$v"
 449 }
 450
 451 cleanws(){
 452     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 453 }
 454
 455 filter(){
 456     pat=$1
 457     shift
 458     for v; do
 459         eval "case $v in $pat) echo $v ;; esac"
 460     done
 461 }
 462
 463 filter_out(){
 464     pat=$1
 465     shift
 466     for v; do
 467         eval "case $v in $pat) ;; *) echo $v ;; esac"
 468     done
 469 }
 470
 471 map(){
 472     m=$1
 473     shift
 474     for v; do eval $m; done
 475 }
 476
 477 add_suffix(){
 478     suffix=$1
 479     shift
 480     for v; do echo ${v}${suffix}; done
 481 }
 482
 483 set_all(){
 484     value=$1
 485     shift
 486     for var in $*; do
 487         eval $var=$value
 488     done
 489 }
 490
 491 set_weak(){
 492     value=$1
 493     shift
 494     for var; do
 495         eval : \${$var:=$value}
 496     done
 497 }
 498
 499 sanitize_var_name(){
 500     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 501 }
 502
 503 set_safe(){
 504     var=$1
 505     shift
 506     eval $(sanitize_var_name "$var")='$*'
 507 }
 508
 509 get_safe(){
 510     eval echo \$$(sanitize_var_name "$1")
 511 }
 512
 513 pushvar(){
 514     for pvar in $*; do
 515         eval level=\${${pvar}_level:=0}
 516         eval ${pvar}_${level}="\$$pvar"
 517         eval ${pvar}_level=$(($level+1))
 518     done
 519 }
 520
 521 popvar(){
 522     for pvar in $*; do
 523         eval level=\${${pvar}_level:-0}
 524         test $level = 0 && continue
 525         eval level=$(($level-1))
 526         eval $pvar="\${${pvar}_${level}}"
 527         eval ${pvar}_level=$level
 528         eval unset ${pvar}_${level}
 529     done
 530 }
 531
 532 enable(){
 533     set_all yes $*
 534 }
 535
 536 disable(){
 537     set_all no $*
 538 }
 539
 540 enable_weak(){
 541     set_weak yes $*
 542 }
 543
 544 disable_weak(){
 545     set_weak no $*
 546 }
 547
 548 enable_safe(){
 549     for var; do
 550         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 551     done
 552 }
 553
 554 disable_safe(){
 555     for var; do
 556         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 557     done
 558 }
 559
 560 do_enable_deep(){
 561     for var; do
 562         enabled $var && continue
 563         eval sel="\$${var}_select"
 564         eval sgs="\$${var}_suggest"
 565         pushvar var sgs
 566         enable_deep $sel
 567         popvar sgs
 568         enable_deep_weak $sgs
 569         popvar var
 570     done
 571 }
 572
 573 enable_deep(){
 574     do_enable_deep $*
 575     enable $*
 576 }
 577
 578 enable_deep_weak(){
 579     for var; do
 580         disabled $var && continue
 581         pushvar var
 582         do_enable_deep $var
 583         popvar var
 584         enable_weak $var
 585     done
 586 }
 587
 588 enabled(){
 589     test "${1#!}" = "$1" && op== || op=!=
 590     eval test "x\$${1#!}" $op "xyes"
 591 }
 592
 593 disabled(){
 594     test "${1#!}" = "$1" && op== || op=!=
 595     eval test "x\$${1#!}" $op "xno"
 596 }
 597
 598 enabled_all(){
 599     for opt; do
 600         enabled $opt || return 1
 601     done
 602 }
 603
 604 disabled_all(){
 605     for opt; do
 606         disabled $opt || return 1
 607     done
 608 }
 609
 610 enabled_any(){
 611     for opt; do
 612         enabled $opt && return 0
 613     done
 614 }
 615
 616 disabled_any(){
 617     for opt; do
 618         disabled $opt && return 0
 619     done
 620     return 1
 621 }
 622
 623 set_default(){
 624     for opt; do
 625         eval : \${$opt:=\$${opt}_default}
 626     done
 627 }
 628
 629 is_in(){
 630     value=$1
 631     shift
 632     for var in $*; do
 633         [ $var = $value ] && return 0
 634     done
 635     return 1
 636 }
 637
 638 do_check_deps(){
 639     for cfg; do
 640         cfg="${cfg#!}"
 641         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 642         disabled ${cfg}_checking && continue
 643         enable ${cfg}_checking
 644         append allopts $cfg
 645
 646         eval dep_all="\$${cfg}_deps"
 647         eval dep_any="\$${cfg}_deps_any"
 648         eval dep_sel="\$${cfg}_select"
 649         eval dep_sgs="\$${cfg}_suggest"
 650         eval dep_ifa="\$${cfg}_if"
 651         eval dep_ifn="\$${cfg}_if_any"
 652
 653         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 654         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 655         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 656
 657         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 658         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 659         enabled_all  $dep_all || disable $cfg
 660         enabled_any  $dep_any || disable $cfg
 661         disabled_any $dep_sel && disable $cfg
 662
 663         if enabled $cfg; then
 664             enable_deep $dep_sel
 665             enable_deep_weak $dep_sgs
 666         fi
 667
 668         disable ${cfg}_checking
 669     done
 670 }
 671
 672 check_deps(){
 673     unset allopts
 674
 675     do_check_deps "$@"
 676
 677     for cfg in $allopts; do
 678         enabled $cfg || continue
 679         eval dep_extralibs="\$${cfg}_extralibs"
 680         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 681     done
 682 }
 683
 684 print_config(){
 685     pfx=$1
 686     files=$2
 687     shift 2
 688     map 'eval echo "$v \${$v:-no}"' "$@" |
 689     awk "BEGIN { split(\"$files\", files) }
 690         {
 691             c = \"$pfx\" toupper(\$1);
 692             v = \$2;
 693             sub(/yes/, 1, v);
 694             sub(/no/,  0, v);
 695             for (f in files) {
 696                 file = files[f];
 697                 if (file ~ /\\.h\$/) {
 698                     printf(\"#define %s %d\\n\", c, v) >>file;
 699                 } else if (file ~ /\\.asm\$/) {
 700                     printf(\"%%define %s %d\\n\", c, v) >>file;
 701                 } else if (file ~ /\\.mak\$/) {
 702                     n = -v ? \"\" : \"!\";
 703                     printf(\"%s%s=yes\\n\", n, c) >>file;
 704                 } else if (file ~ /\\.texi\$/) {
 705                     pre = -v ? \"\" : \"@c \";
 706                     yesno = \$2;
 707                     c2 = tolower(c);
 708                     gsub(/_/, \"-\", c2);
 709                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 710                 }
 711             }
 712         }"
 713 }
 714
 715 print_enabled(){
 716     suf=$1
 717     shift
 718     for v; do
 719         enabled $v && printf "%s\n" ${v%$suf};
 720     done
 721 }
 722
 723 append(){
 724     var=$1
 725     shift
 726     eval "$var=\"\$$var $*\""
 727 }
 728
 729 prepend(){
 730     var=$1
 731     shift
 732     eval "$var=\"$* \$$var\""
 733 }
 734
 735 unique(){
 736     var=$1
 737     uniq_list=""
 738     for tok in $(eval echo \$$var); do
 739         uniq_list="$(filter_out $tok $uniq_list) $tok"
 740     done
 741     eval "$var=\"${uniq_list}\""
 742 }
 743
 744 add_cppflags(){
 745     append CPPFLAGS "$@"
 746 }
 747
 748 add_cflags(){
 749     append CFLAGS $($cflags_filter "$@")
 750 }
 751
 752 add_cxxflags(){
 753     append CXXFLAGS $($cflags_filter "$@")
 754 }
 755
 756 add_asflags(){
 757     append ASFLAGS $($asflags_filter "$@")
 758 }
 759
 760 add_ldflags(){
 761     append LDFLAGS $($ldflags_filter "$@")
 762 }
 763
 764 add_ldexeflags(){
 765     append LDEXEFLAGS $($ldflags_filter "$@")
 766 }
 767
 768 add_stripflags(){
 769     append ASMSTRIPFLAGS "$@"
 770 }
 771
 772 add_extralibs(){
 773     prepend extralibs $($ldflags_filter "$@")
 774 }
 775
 776 add_host_cppflags(){
 777     append host_cppflags "$@"
 778 }
 779
 780 add_host_cflags(){
 781     append host_cflags $($host_cflags_filter "$@")
 782 }
 783
 784 add_host_ldflags(){
 785     append host_ldflags $($host_ldflags_filter "$@")
 786 }
 787
 788 add_compat(){
 789     append compat_objs $1
 790     shift
 791     map 'add_cppflags -D$v' "$@"
 792 }
 793
 794 check_cmd(){
 795     log "$@"
 796     "$@" >> $logfile 2>&1
 797 }
 798
 799 check_stat(){
 800     log check_stat "$@"
 801     stat "$1" >> $logfile 2>&1
 802 }
 803
 804 cc_o(){
 805     eval printf '%s\\n' $CC_O
 806 }
 807
 808 cc_e(){
 809     eval printf '%s\\n' $CC_E
 810 }
 811
 812 check_cc(){
 813     log check_cc "$@"
 814     cat > $TMPC
 815     log_file $TMPC
 816     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 817 }
 818
 819 check_cxx(){
 820     log check_cxx "$@"
 821     cat > $TMPCPP
 822     log_file $TMPCPP
 823     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 824 }
 825
 826 check_oc(){
 827     log check_oc "$@"
 828     cat > $TMPM
 829     log_file $TMPM
 830     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 831 }
 832
 833 check_cpp(){
 834     log check_cpp "$@"
 835     cat > $TMPC
 836     log_file $TMPC
 837     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 838 }
 839
 840 as_o(){
 841     eval printf '%s\\n' $AS_O
 842 }
 843
 844 check_as(){
 845     log check_as "$@"
 846     cat > $TMPS
 847     log_file $TMPS
 848     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 849 }
 850
 851 check_inline_asm(){
 852     log check_inline_asm "$@"
 853     name="$1"
 854     code="$2"
 855     shift 2
 856     disable $name
 857     check_cc "$@" <<EOF && enable $name
 858 void foo(void){ __asm__ volatile($code); }
 859 EOF
 860 }
 861
 862 check_insn(){
 863     log check_insn "$@"
 864     check_inline_asm ${1}_inline "\"$2\""
 865     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 866 }
 867
 868 check_yasm(){
 869     log check_yasm "$@"
 870     echo "$1" > $TMPS
 871     log_file $TMPS
 872     shift 1
 873     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 874 }
 875
 876 ld_o(){
 877     eval printf '%s\\n' $LD_O
 878 }
 879
 880 check_ld(){
 881     log check_ld "$@"
 882     type=$1
 883     shift 1
 884     flags=$(filter_out '-l*|*.so' $@)
 885     libs=$(filter '-l*|*.so' $@)
 886     check_$type $($cflags_filter $flags) || return
 887     flags=$($ldflags_filter $flags)
 888     libs=$($ldflags_filter $libs)
 889     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 890 }
 891
 892 print_include(){
 893     hdr=$1
 894     test "${hdr%.h}" = "${hdr}" &&
 895         echo "#include $hdr"    ||
 896         echo "#include <$hdr>"
 897 }
 898
 899 check_code(){
 900     log check_code "$@"
 901     check=$1
 902     headers=$2
 903     code=$3
 904     shift 3
 905     {
 906         for hdr in $headers; do
 907             print_include $hdr
 908         done
 909         echo "int main(void) { $code; return 0; }"
 910     } | check_$check "$@"
 911 }
 912
 913 check_cppflags(){
 914     log check_cppflags "$@"
 915     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 916 int x;
 917 EOF
 918 }
 919
 920 test_cflags(){
 921     log test_cflags "$@"
 922     set -- $($cflags_filter "$@")
 923     check_cc "$@" <<EOF
 924 int x;
 925 EOF
 926 }
 927
 928 check_cflags(){
 929     log check_cflags "$@"
 930     test_cflags "$@" && add_cflags "$@"
 931 }
 932
 933 check_cxxflags(){
 934     log check_cxxflags "$@"
 935     set -- $($cflags_filter "$@")
 936     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 937 int x;
 938 EOF
 939 }
 940
 941 test_ldflags(){
 942     log test_ldflags "$@"
 943     check_ld "cc" "$@" <<EOF
 944 int main(void){ return 0; }
 945 EOF
 946 }
 947
 948 check_ldflags(){
 949     log check_ldflags "$@"
 950     test_ldflags "$@" && add_ldflags "$@"
 951 }
 952
 953 test_stripflags(){
 954     log test_stripflags "$@"
 955     # call check_cc to get a fresh TMPO
 956     check_cc <<EOF
 957 int main(void) { return 0; }
 958 EOF
 959     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 960 }
 961
 962 check_stripflags(){
 963     log check_stripflags "$@"
 964     test_stripflags "$@" && add_stripflags "$@"
 965 }
 966
 967 check_header(){
 968     log check_header "$@"
 969     header=$1
 970     shift
 971     disable_safe $header
 972     check_cpp "$@" <<EOF && enable_safe $header
 973 #include <$header>
 974 int x;
 975 EOF
 976 }
 977
 978 check_header_oc(){
 979     log check_header_oc "$@"
 980     rm -f -- "$TMPO"
 981     header=$1
 982     shift
 983     disable_safe $header
 984     {
 985        echo "#include <$header>"
 986        echo "int main(void) { return 0; }"
 987     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 988 }
 989
 990 check_func(){
 991     log check_func "$@"
 992     func=$1
 993     shift
 994     disable $func
 995     check_ld "cc" "$@" <<EOF && enable $func
 996 extern int $func();
 997 int main(void){ $func(); }
 998 EOF
 999 }
1000
1001 check_mathfunc(){
1002     log check_mathfunc "$@"
1003     func=$1
1004     narg=$2
1005     shift 2
1006     test $narg = 2 && args="f, g" || args="f"
1007     disable $func
1008     check_ld "cc" "$@" <<EOF && enable $func
1009 #include <math.h>
1010 float foo(float f, float g) { return $func($args); }
1011 int main(void){ return (int) foo; }
1012 EOF
1013 }
1014
1015 check_func_headers(){
1016     log check_func_headers "$@"
1017     headers=$1
1018     funcs=$2
1019     shift 2
1020     {
1021         for hdr in $headers; do
1022             print_include $hdr
1023         done
1024         for func in $funcs; do
1025             echo "long check_$func(void) { return (long) $func; }"
1026         done
1027         echo "int main(void) { return 0; }"
1028     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1029 }
1030
1031 check_class_headers_cpp(){
1032     log check_class_headers_cpp "$@"
1033     headers=$1
1034     classes=$2
1035     shift 2
1036     {
1037         for hdr in $headers; do
1038             echo "#include <$hdr>"
1039         done
1040         echo "int main(void) { "
1041         i=1
1042         for class in $classes; do
1043             echo "$class obj$i;"
1044             i=$(expr $i + 1)
1045         done
1046         echo "return 0; }"
1047     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1048 }
1049
1050 check_cpp_condition(){
1051     log check_cpp_condition "$@"
1052     header=$1
1053     condition=$2
1054     shift 2
1055     check_cpp "$@" <<EOF
1056 #include <$header>
1057 #if !($condition)
1058 #error "unsatisfied condition: $condition"
1059 #endif
1060 EOF
1061 }
1062
1063 check_lib(){
1064     log check_lib "$@"
1065     header="$1"
1066     func="$2"
1067     shift 2
1068     check_header $header && check_func $func "$@" && add_extralibs "$@"
1069 }
1070
1071 check_lib2(){
1072     log check_lib2 "$@"
1073     headers="$1"
1074     funcs="$2"
1075     shift 2
1076     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1077 }
1078
1079 check_lib_cpp(){
1080     log check_lib_cpp "$@"
1081     headers="$1"
1082     classes="$2"
1083     shift 2
1084     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1085 }
1086
1087 check_pkg_config(){
1088     log check_pkg_config "$@"
1089     pkgandversion="$1"
1090     pkg="${1%% *}"
1091     headers="$2"
1092     funcs="$3"
1093     shift 3
1094     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1095     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1096     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1097     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1098         set_safe ${pkg}_cflags $pkg_cflags   &&
1099         set_safe ${pkg}_libs   $pkg_libs
1100 }
1101
1102 check_exec(){
1103     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1104 }
1105
1106 check_exec_crash(){
1107     code=$(cat)
1108
1109     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1110     # are safe but may not be available everywhere.  Thus we use
1111     # raise(SIGTERM) instead.  The check is run in a subshell so we
1112     # can redirect the "Terminated" message from the shell.  SIGBUS
1113     # is not defined by standard C so it is used conditionally.
1114
1115     (check_exec "$@") >> $logfile 2>&1 <<EOF
1116 #include <signal.h>
1117 static void sighandler(int sig){
1118     raise(SIGTERM);
1119 }
1120 int foo(void){
1121     $code
1122 }
1123 int (*func_ptr)(void) = foo;
1124 int main(void){
1125     signal(SIGILL, sighandler);
1126     signal(SIGFPE, sighandler);
1127     signal(SIGSEGV, sighandler);
1128 #ifdef SIGBUS
1129     signal(SIGBUS, sighandler);
1130 #endif
1131     return func_ptr();
1132 }
1133 EOF
1134 }
1135
1136 check_type(){
1137     log check_type "$@"
1138     headers=$1
1139     type=$2
1140     shift 2
1141     disable_safe "$type"
1142     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1143 }
1144
1145 check_struct(){
1146     log check_struct "$@"
1147     headers=$1
1148     struct=$2
1149     member=$3
1150     shift 3
1151     disable_safe "${struct}_${member}"
1152     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1153         enable_safe "${struct}_${member}"
1154 }
1155
1156 check_builtin(){
1157     log check_builtin "$@"
1158     name=$1
1159     headers=$2
1160     builtin=$3
1161     shift 3
1162     disable "$name"
1163     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1164 }
1165
1166 check_compile_assert(){
1167     log check_compile_assert "$@"
1168     name=$1
1169     headers=$2
1170     condition=$3
1171     shift 3
1172     disable "$name"
1173     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1174 }
1175
1176 require(){
1177     name="$1"
1178     header="$2"
1179     func="$3"
1180     shift 3
1181     check_lib $header $func "$@" || die "ERROR: $name not found"
1182 }
1183
1184 require2(){
1185     name="$1"
1186     headers="$2"
1187     func="$3"
1188     shift 3
1189     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1190 }
1191
1192 require_cpp(){
1193     name="$1"
1194     headers="$2"
1195     classes="$3"
1196     shift 3
1197     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1198 }
1199
1200 require_pkg_config(){
1201     pkg="$1"
1202     check_pkg_config "$@" || die "ERROR: $pkg not found"
1203     add_cflags    $(get_safe ${pkg}_cflags)
1204     add_extralibs $(get_safe ${pkg}_libs)
1205 }
1206
1207 require_libfreetype(){
1208     log require_libfreetype "$@"
1209     pkg="freetype2"
1210     check_cmd $pkg_config --exists --print-errors $pkg \
1211       || die "ERROR: $pkg not found"
1212     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1213     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1214     {
1215         echo "#include <ft2build.h>"
1216         echo "#include FT_FREETYPE_H"
1217         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1218         echo "int main(void) { return 0; }"
1219     } | check_ld "cc" $pkg_cflags $pkg_libs \
1220       && set_safe ${pkg}_cflags $pkg_cflags \
1221       && set_safe ${pkg}_libs   $pkg_libs \
1222       || die "ERROR: $pkg not found"
1223     add_cflags    $(get_safe ${pkg}_cflags)
1224     add_extralibs $(get_safe ${pkg}_libs)
1225 }
1226
1227 hostcc_e(){
1228     eval printf '%s\\n' $HOSTCC_E
1229 }
1230
1231 hostcc_o(){
1232     eval printf '%s\\n' $HOSTCC_O
1233 }
1234
1235 check_host_cc(){
1236     log check_host_cc "$@"
1237     cat > $TMPC
1238     log_file $TMPC
1239     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1240 }
1241
1242 check_host_cpp(){
1243     log check_host_cpp "$@"
1244     cat > $TMPC
1245     log_file $TMPC
1246     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1247 }
1248
1249 check_host_cppflags(){
1250     log check_host_cppflags "$@"
1251     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1252 int x;
1253 EOF
1254 }
1255
1256 check_host_cflags(){
1257     log check_host_cflags "$@"
1258     set -- $($host_cflags_filter "$@")
1259     check_host_cc "$@" <<EOF && append host_cflags "$@"
1260 int x;
1261 EOF
1262 }
1263
1264 check_host_cpp_condition(){
1265     log check_host_cpp_condition "$@"
1266     header=$1
1267     condition=$2
1268     shift 2
1269     check_host_cpp "$@" <<EOF
1270 #include <$header>
1271 #if !($condition)
1272 #error "unsatisfied condition: $condition"
1273 #endif
1274 EOF
1275 }
1276
1277 apply(){
1278     file=$1
1279     shift
1280     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1281 }
1282
1283 cp_if_changed(){
1284     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1285     mkdir -p "$(dirname $2)"
1286     $cp_f "$1" "$2"
1287 }
1288
1289 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1290 # system-dependent things.
1291
1292 COMPONENT_LIST="
1293     bsfs
1294     decoders
1295     demuxers
1296     encoders
1297     filters
1298     hwaccels
1299     indevs
1300     muxers
1301     outdevs
1302     parsers
1303     protocols
1304 "
1305
1306 EXAMPLE_LIST="
1307     avio_reading_example
1308     decoding_encoding_example
1309     demuxing_decoding_example
1310     extract_mvs_example
1311     filter_audio_example
1312     filtering_audio_example
1313     filtering_video_example
1314     metadata_example
1315     muxing_example
1316     remuxing_example
1317     resampling_audio_example
1318     scaling_video_example
1319     transcode_aac_example
1320     transcoding_example
1321 "
1322
1323 EXTERNAL_LIBRARY_LIST="
1324     avisynth
1325     bzlib
1326     crystalhd
1327     decklink
1328     frei0r
1329     gnutls
1330     iconv
1331     ladspa
1332     libaacplus
1333     libass
1334     libbluray
1335     libbs2b
1336     libcaca
1337     libcdio
1338     libcelt
1339     libdc1394
1340     libfaac
1341     libfdk_aac
1342     libflite
1343     libfontconfig
1344     libfreetype
1345     libfribidi
1346     libgme
1347     libgsm
1348     libiec61883
1349     libilbc
1350     libmodplug
1351     libmp3lame
1352     libnut
1353     libopencore_amrnb
1354     libopencore_amrwb
1355     libopencv
1356     libopenjpeg
1357     libopus
1358     libpulse
1359     libquvi
1360     librtmp
1361     libschroedinger
1362     libshine
1363     libsmbclient
1364     libsoxr
1365     libspeex
1366     libssh
1367     libstagefright_h264
1368     libtheora
1369     libtwolame
1370     libutvideo
1371     libv4l2
1372     libvidstab
1373     libvo_aacenc
1374     libvo_amrwbenc
1375     libvorbis
1376     libvpx
1377     libwavpack
1378     libwebp
1379     libx264
1380     libx265
1381     libxavs
1382     libxvid
1383     libzmq
1384     libzvbi
1385     lzma
1386     openal
1387     opencl
1388     opengl
1389     openssl
1390     x11grab
1391     xlib
1392     zlib
1393 "
1394
1395 DOCUMENT_LIST="
1396     doc
1397     htmlpages
1398     manpages
1399     podpages
1400     txtpages
1401 "
1402
1403 FEATURE_LIST="
1404     ftrapv
1405     gray
1406     hardcoded_tables
1407     runtime_cpudetect
1408     safe_bitstream_reader
1409     shared
1410     small
1411     static
1412     swscale_alpha
1413 "
1414
1415 HWACCEL_LIST="
1416     dxva2
1417     vaapi
1418     vda
1419     vdpau
1420     xvmc
1421 "
1422
1423 LIBRARY_LIST="
1424     avcodec
1425     avdevice
1426     avfilter
1427     avformat
1428     avresample
1429     avutil
1430     postproc
1431     swresample
1432     swscale
1433 "
1434
1435 LICENSE_LIST="
1436     gpl
1437     nonfree
1438     version3
1439 "
1440
1441 PROGRAM_LIST="
1442     ffplay
1443     ffprobe
1444     ffserver
1445     ffmpeg
1446 "
1447
1448 SUBSYSTEM_LIST="
1449     dct
1450     dwt
1451     error_resilience
1452     fast_unaligned
1453     fft
1454     lsp
1455     lzo
1456     mdct
1457     pixelutils
1458     network
1459     rdft
1460 "
1461
1462 CONFIG_LIST="
1463     $COMPONENT_LIST
1464     $DOCUMENT_LIST
1465     $EXAMPLE_LIST
1466     $EXTERNAL_LIBRARY_LIST
1467     $FEATURE_LIST
1468     $HWACCEL_LIST
1469     $LICENSE_LIST
1470     $LIBRARY_LIST
1471     $PROGRAM_LIST
1472     $SUBSYSTEM_LIST
1473     fontconfig
1474     incompatible_libav_abi
1475     memalign_hack
1476     memory_poisoning
1477     neon_clobber_test
1478     pic
1479     pod2man
1480     raise_major
1481     thumb
1482     xmm_clobber_test
1483 "
1484
1485 THREADS_LIST="
1486     pthreads
1487     os2threads
1488     w32threads
1489 "
1490
1491 ATOMICS_LIST="
1492     atomics_gcc
1493     atomics_suncc
1494     atomics_win32
1495 "
1496
1497 ARCH_LIST="
1498     aarch64
1499     alpha
1500     arm
1501     avr32
1502     avr32_ap
1503     avr32_uc
1504     bfin
1505     ia64
1506     m68k
1507     mips
1508     mips64
1509     parisc
1510     ppc
1511     ppc64
1512     s390
1513     sh4
1514     sparc
1515     sparc64
1516     tilegx
1517     tilepro
1518     tomi
1519     x86
1520     x86_32
1521     x86_64
1522 "
1523
1524 ARCH_EXT_LIST_ARM="
1525     armv5te
1526     armv6
1527     armv6t2
1528     armv8
1529     neon
1530     vfp
1531     vfpv3
1532     setend
1533 "
1534
1535 ARCH_EXT_LIST_MIPS="
1536     mipsfpu
1537     mips32r2
1538     mipsdspr1
1539     mipsdspr2
1540 "
1541
1542 ARCH_EXT_LIST_X86_SIMD="
1543     amd3dnow
1544     amd3dnowext
1545     avx
1546     avx2
1547     fma3
1548     fma4
1549     mmx
1550     mmxext
1551     sse
1552     sse2
1553     sse3
1554     sse4
1555     sse42
1556     ssse3
1557     xop
1558 "
1559
1560 ARCH_EXT_LIST_PPC="
1561     altivec
1562     dcbzl
1563     ldbrx
1564     ppc4xx
1565     vsx
1566 "
1567
1568 ARCH_EXT_LIST_X86="
1569     $ARCH_EXT_LIST_X86_SIMD
1570     cpunop
1571     i686
1572 "
1573
1574 ARCH_EXT_LIST="
1575     $ARCH_EXT_LIST_ARM
1576     $ARCH_EXT_LIST_PPC
1577     $ARCH_EXT_LIST_X86
1578     $ARCH_EXT_LIST_MIPS
1579     loongson
1580 "
1581
1582 ARCH_FEATURES="
1583     aligned_stack
1584     fast_64bit
1585     fast_clz
1586     fast_cmov
1587     local_aligned_8
1588     local_aligned_16
1589     local_aligned_32
1590     simd_align_16
1591 "
1592
1593 BUILTIN_LIST="
1594     atomic_cas_ptr
1595     machine_rw_barrier
1596     MemoryBarrier
1597     mm_empty
1598     rdtsc
1599     sarestart
1600     sync_val_compare_and_swap
1601 "
1602 HAVE_LIST_CMDLINE="
1603     inline_asm
1604     symver
1605     yasm
1606 "
1607
1608 HAVE_LIST_PUB="
1609     bigendian
1610     fast_unaligned
1611     incompatible_libav_abi
1612 "
1613
1614 HEADERS_LIST="
1615     alsa_asoundlib_h
1616     altivec_h
1617     arpa_inet_h
1618     asm_types_h
1619     cdio_paranoia_h
1620     cdio_paranoia_paranoia_h
1621     CL_cl_h
1622     dev_bktr_ioctl_bt848_h
1623     dev_bktr_ioctl_meteor_h
1624     dev_ic_bt8xx_h
1625     dev_video_bktr_ioctl_bt848_h
1626     dev_video_meteor_ioctl_meteor_h
1627     direct_h
1628     dlfcn_h
1629     dxva_h
1630     ES2_gl_h
1631     gsm_h
1632     io_h
1633     mach_mach_time_h
1634     machine_ioctl_bt848_h
1635     machine_ioctl_meteor_h
1636     malloc_h
1637     openjpeg_1_5_openjpeg_h
1638     OpenGL_gl3_h
1639     poll_h
1640     sndio_h
1641     soundcard_h
1642     sys_mman_h
1643     sys_param_h
1644     sys_resource_h
1645     sys_select_h
1646     sys_soundcard_h
1647     sys_time_h
1648     sys_un_h
1649     sys_videoio_h
1650     termios_h
1651     unistd_h
1652     windows_h
1653     winsock2_h
1654 "
1655
1656 INTRINSICS_LIST="
1657     intrinsics_neon
1658 "
1659
1660 MATH_FUNCS="
1661     atanf
1662     atan2f
1663     cbrt
1664     cbrtf
1665     cosf
1666     exp2
1667     exp2f
1668     expf
1669     fminf
1670     isinf
1671     isnan
1672     ldexpf
1673     llrint
1674     llrintf
1675     log2
1676     log2f
1677     log10f
1678     lrint
1679     lrintf
1680     powf
1681     rint
1682     round
1683     roundf
1684     sinf
1685     trunc
1686     truncf
1687 "
1688
1689 SYSTEM_FUNCS="
1690     access
1691     aligned_malloc
1692     clock_gettime
1693     closesocket
1694     CommandLineToArgvW
1695     CoTaskMemFree
1696     CryptGenRandom
1697     dlopen
1698     fcntl
1699     flt_lim
1700     fork
1701     getaddrinfo
1702     gethrtime
1703     getopt
1704     GetProcessAffinityMask
1705     GetProcessMemoryInfo
1706     GetProcessTimes
1707     getrusage
1708     getservbyport
1709     GetSystemTimeAsFileTime
1710     gettimeofday
1711     glob
1712     glXGetProcAddress
1713     inet_aton
1714     isatty
1715     jack_port_get_latency_range
1716     kbhit
1717     localtime_r
1718     lzo1x_999_compress
1719     mach_absolute_time
1720     MapViewOfFile
1721     memalign
1722     mkstemp
1723     mmap
1724     mprotect
1725     nanosleep
1726     PeekNamedPipe
1727     posix_memalign
1728     pthread_cancel
1729     sched_getaffinity
1730     SetConsoleTextAttribute
1731     setmode
1732     setrlimit
1733     Sleep
1734     strerror_r
1735     sysconf
1736     sysctl
1737     usleep
1738     VirtualAlloc
1739     wglGetProcAddress
1740 "
1741
1742 TOOLCHAIN_FEATURES="
1743     as_dn_directive
1744     as_func
1745     asm_mod_q
1746     attribute_may_alias
1747     attribute_packed
1748     ebp_available
1749     ebx_available
1750     gnu_as
1751     gnu_windres
1752     ibm_asm
1753     inline_asm_labels
1754     inline_asm_nonlocal_labels
1755     inline_asm_direct_symbol_refs
1756     pragma_deprecated
1757     rsync_contimeout
1758     symver_asm_label
1759     symver_gnu_asm
1760     vfp_args
1761     xform_asm
1762     xmm_clobbers
1763 "
1764
1765 TYPES_LIST="
1766     socklen_t
1767     struct_addrinfo
1768     struct_group_source_req
1769     struct_ip_mreq_source
1770     struct_ipv6_mreq
1771     struct_pollfd
1772     struct_rusage_ru_maxrss
1773     struct_sctp_event_subscribe
1774     struct_sockaddr_in6
1775     struct_sockaddr_sa_len
1776     struct_sockaddr_storage
1777     struct_stat_st_mtim_tv_nsec
1778     struct_v4l2_frmivalenum_discrete
1779 "
1780
1781 HAVE_LIST="
1782     $ARCH_EXT_LIST
1783     $(add_suffix _external $ARCH_EXT_LIST)
1784     $(add_suffix _inline   $ARCH_EXT_LIST)
1785     $ARCH_FEATURES
1786     $ATOMICS_LIST
1787     $BUILTIN_LIST
1788     $HAVE_LIST_CMDLINE
1789     $HAVE_LIST_PUB
1790     $HEADERS_LIST
1791     $INTRINSICS_LIST
1792     $MATH_FUNCS
1793     $SYSTEM_FUNCS
1794     $THREADS_LIST
1795     $TOOLCHAIN_FEATURES
1796     $TYPES_LIST
1797     atomics_native
1798     dos_paths
1799     dxva2api_cobj
1800     dxva2_lib
1801     libc_msvcrt
1802     libdc1394_1
1803     libdc1394_2
1804     makeinfo
1805     perl
1806     pod2man
1807     sdl
1808     texi2html
1809     threads
1810     vdpau_x11
1811     xlib
1812 "
1813
1814 # options emitted with CONFIG_ prefix but not available on the command line
1815 CONFIG_EXTRA="
1816     aandcttables
1817     ac3dsp
1818     audio_frame_queue
1819     audiodsp
1820     blockdsp
1821     bswapdsp
1822     cabac
1823     dvprofile
1824     exif
1825     fdctdsp
1826     frame_thread_encoder
1827     gcrypt
1828     golomb
1829     gplv3
1830     h263dsp
1831     h264chroma
1832     h264dsp
1833     h264pred
1834     h264qpel
1835     hpeldsp
1836     huffman
1837     huffyuvdsp
1838     huffyuvencdsp
1839     idctdsp
1840     iirfilter
1841     intrax8
1842     lgplv3
1843     llauddsp
1844     llviddsp
1845     lpc
1846     me_cmp
1847     mpeg_er
1848     mpegaudio
1849     mpegaudiodsp
1850     mpegvideo
1851     mpegvideoenc
1852     nettle
1853     pixblockdsp
1854     qpeldsp
1855     rangecoder
1856     riffdec
1857     riffenc
1858     rtpdec
1859     rtpenc_chain
1860     sinewin
1861     startcode
1862     tpeldsp
1863     videodsp
1864     vp3dsp
1865 "
1866
1867 CMDLINE_SELECT="
1868     $ARCH_EXT_LIST
1869     $CONFIG_LIST
1870     $HAVE_LIST_CMDLINE
1871     $THREADS_LIST
1872     asm
1873     cross_compile
1874     debug
1875     extra_warnings
1876     logging
1877     lto
1878     optimizations
1879     rpath
1880     stripping
1881 "
1882
1883 PATHS_LIST="
1884     bindir
1885     datadir
1886     docdir
1887     incdir
1888     libdir
1889     mandir
1890     prefix
1891     shlibdir
1892 "
1893
1894 CMDLINE_SET="
1895     $PATHS_LIST
1896     ar
1897     arch
1898     as
1899     assert_level
1900     build_suffix
1901     cc
1902     cpu
1903     cross_prefix
1904     cxx
1905     dep_cc
1906     doxygen
1907     extra_version
1908     gas
1909     host_cc
1910     host_cflags
1911     host_ld
1912     host_ldflags
1913     host_libs
1914     host_os
1915     install
1916     ld
1917     logfile
1918     malloc_prefix
1919     nm
1920     optflags
1921     pkg_config
1922     pkg_config_flags
1923     progs_suffix
1924     random_seed
1925     ranlib
1926     samples
1927     strip
1928     sws_max_filter_size
1929     sysinclude
1930     sysroot
1931     target_exec
1932     target_os
1933     target_path
1934     target_samples
1935     tempprefix
1936     toolchain
1937     valgrind
1938     yasmexe
1939 "
1940
1941 CMDLINE_APPEND="
1942     extra_cflags
1943     extra_cxxflags
1944     host_cppflags
1945 "
1946
1947 # code dependency declarations
1948
1949 # architecture extensions
1950
1951 armv5te_deps="arm"
1952 armv6_deps="arm"
1953 armv6t2_deps="arm"
1954 armv8_deps="aarch64"
1955 neon_deps_any="aarch64 arm"
1956 intrinsics_neon_deps="neon"
1957 vfp_deps_any="aarch64 arm"
1958 vfpv3_deps="vfp"
1959 setend_deps="arm"
1960
1961 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1962
1963 mipsfpu_deps="mips"
1964 mips32r2_deps="mips"
1965 mipsdspr1_deps="mips"
1966 mipsdspr2_deps="mips"
1967
1968 altivec_deps="ppc"
1969 ppc4xx_deps="ppc"
1970 vsx_deps="ppc"
1971
1972 cpunop_deps="i686"
1973 x86_64_select="i686"
1974 x86_64_suggest="fast_cmov"
1975
1976 amd3dnow_deps="mmx"
1977 amd3dnowext_deps="amd3dnow"
1978 i686_deps="x86"
1979 mmx_deps="x86"
1980 mmxext_deps="mmx"
1981 sse_deps="mmxext"
1982 sse2_deps="sse"
1983 sse3_deps="sse2"
1984 ssse3_deps="sse3"
1985 sse4_deps="ssse3"
1986 sse42_deps="sse4"
1987 avx_deps="sse42"
1988 xop_deps="avx"
1989 fma3_deps="avx"
1990 fma4_deps="avx"
1991 avx2_deps="avx"
1992
1993 mmx_external_deps="yasm"
1994 mmx_inline_deps="inline_asm"
1995 mmx_suggest="mmx_external mmx_inline"
1996
1997 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1998     eval dep=\$${ext}_deps
1999     eval ${ext}_external_deps='"${dep}_external"'
2000     eval ${ext}_inline_deps='"${dep}_inline"'
2001     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2002 done
2003
2004 aligned_stack_if_any="aarch64 ppc x86"
2005 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2006 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2007 fast_unaligned_if_any="aarch64 ppc x86"
2008 simd_align_16_if_any="altivec neon sse"
2009
2010 # system capabilities
2011
2012 symver_if_any="symver_asm_label symver_gnu_asm"
2013
2014 # threading support
2015 atomics_gcc_if="sync_val_compare_and_swap"
2016 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2017 atomics_win32_if="MemoryBarrier"
2018 atomics_native_if_any="$ATOMICS_LIST"
2019 w32threads_deps="atomics_native"
2020 threads_if_any="$THREADS_LIST"
2021
2022 # subsystems
2023 dct_select="rdft"
2024 error_resilience_select="me_cmp"
2025 frame_thread_encoder_deps="encoders threads"
2026 intrax8_select="error_resilience"
2027 mdct_select="fft"
2028 rdft_select="fft"
2029 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2030 mpeg_er_select="error_resilience"
2031 mpegaudio_select="mpegaudiodsp"
2032 mpegaudiodsp_select="dct"
2033 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2034 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2035
2036 # decoders / encoders
2037 aac_decoder_select="mdct sinewin"
2038 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2039 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2040 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2041 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2042 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2043 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2044 aic_decoder_select="golomb idctdsp"
2045 alac_encoder_select="lpc"
2046 als_decoder_select="bswapdsp"
2047 amrnb_decoder_select="lsp"
2048 amrwb_decoder_select="lsp"
2049 amv_decoder_select="sp5x_decoder exif"
2050 amv_encoder_select="aandcttables mpegvideoenc"
2051 ape_decoder_select="bswapdsp llauddsp"
2052 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2053 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2054 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2055 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2056 atrac1_decoder_select="mdct sinewin"
2057 atrac3_decoder_select="mdct"
2058 atrac3p_decoder_select="mdct sinewin"
2059 avrn_decoder_select="exif"
2060 bink_decoder_select="blockdsp hpeldsp"
2061 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
2062 binkaudio_rdft_decoder_select="mdct rdft sinewin"
2063 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2064 cllc_decoder_select="bswapdsp"
2065 comfortnoise_encoder_select="lpc"
2066 cook_decoder_select="audiodsp mdct sinewin"
2067 cscd_decoder_select="lzo"
2068 cscd_decoder_suggest="zlib"
2069 dca_decoder_select="mdct"
2070 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2071 dnxhd_decoder_select="blockdsp idctdsp"
2072 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2073 dvvideo_decoder_select="dvprofile idctdsp"
2074 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2075 dxa_decoder_select="zlib"
2076 eac3_decoder_select="ac3_decoder"
2077 eac3_encoder_select="ac3_encoder"
2078 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2079 eatgq_decoder_select="aandcttables"
2080 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2081 exr_decoder_select="zlib"
2082 ffv1_decoder_select="golomb rangecoder"
2083 ffv1_encoder_select="rangecoder"
2084 ffvhuff_decoder_select="huffyuv_decoder"
2085 ffvhuff_encoder_select="huffyuv_encoder"
2086 fic_decoder_select="golomb"
2087 flac_decoder_select="golomb"
2088 flac_encoder_select="bswapdsp golomb lpc"
2089 flashsv_decoder_select="zlib"
2090 flashsv_encoder_select="zlib"
2091 flashsv2_encoder_select="zlib"
2092 flashsv2_decoder_select="zlib"
2093 flv_decoder_select="h263_decoder"
2094 flv_encoder_select="h263_encoder"
2095 fourxm_decoder_select="blockdsp bswapdsp"
2096 fraps_decoder_select="bswapdsp huffman"
2097 g2m_decoder_select="blockdsp idctdsp zlib"
2098 g729_decoder_select="audiodsp"
2099 h261_decoder_select="mpeg_er mpegvideo"
2100 h261_encoder_select="aandcttables mpegvideoenc"
2101 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2102 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2103 h263i_decoder_select="h263_decoder"
2104 h263p_encoder_select="h263_encoder"
2105 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2106 h264_decoder_suggest="error_resilience"
2107 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2108 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2109 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2110 iac_decoder_select="imc_decoder"
2111 imc_decoder_select="bswapdsp fft mdct sinewin"
2112 indeo3_decoder_select="hpeldsp"
2113 interplay_video_decoder_select="hpeldsp"
2114 jpegls_decoder_select="golomb mjpeg_decoder"
2115 jpegls_encoder_select="golomb"
2116 jv_decoder_select="blockdsp"
2117 lagarith_decoder_select="huffyuvdsp"
2118 ljpeg_encoder_select="aandcttables idctdsp"
2119 loco_decoder_select="golomb"
2120 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2121 metasound_decoder_select="lsp mdct sinewin"
2122 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2123 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2124 mjpeg_encoder_select="aandcttables mpegvideoenc"
2125 mjpegb_decoder_select="mjpeg_decoder"
2126 mlp_decoder_select="mlp_parser"
2127 motionpixels_decoder_select="bswapdsp"
2128 mp1_decoder_select="mpegaudio"
2129 mp1float_decoder_select="mpegaudio"
2130 mp2_decoder_select="mpegaudio"
2131 mp2float_decoder_select="mpegaudio"
2132 mp3_decoder_select="mpegaudio"
2133 mp3adu_decoder_select="mpegaudio"
2134 mp3adufloat_decoder_select="mpegaudio"
2135 mp3float_decoder_select="mpegaudio"
2136 mp3on4_decoder_select="mpegaudio"
2137 mp3on4float_decoder_select="mpegaudio"
2138 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2139 mpc8_decoder_select="mpegaudiodsp"
2140 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2141 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2142 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2143 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2144 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2145 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2146 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2147 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2148 mpeg4_encoder_select="h263_encoder"
2149 msmpeg4v1_decoder_select="h263_decoder"
2150 msmpeg4v2_decoder_select="h263_decoder"
2151 msmpeg4v2_encoder_select="h263_encoder"
2152 msmpeg4v3_decoder_select="h263_decoder"
2153 msmpeg4v3_encoder_select="h263_encoder"
2154 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2155 mxpeg_decoder_select="mjpeg_decoder"
2156 nellymoser_decoder_select="mdct sinewin"
2157 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2158 nuv_decoder_select="idctdsp lzo"
2159 on2avc_decoder_select="mdct"
2160 opus_decoder_deps="swresample"
2161 png_decoder_select="zlib"
2162 png_encoder_select="huffyuvencdsp zlib"
2163 prores_decoder_select="blockdsp idctdsp"
2164 prores_encoder_select="fdctdsp"
2165 qcelp_decoder_select="lsp"
2166 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2167 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2168 ra_144_decoder_select="audiodsp"
2169 ralf_decoder_select="golomb"
2170 rawvideo_decoder_select="bswapdsp"
2171 rtjpeg_decoder_select="me_cmp"
2172 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2173 rv10_encoder_select="h263_encoder"
2174 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2175 rv20_encoder_select="h263_encoder"
2176 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2177 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2178 shorten_decoder_select="golomb"
2179 sipr_decoder_select="lsp"
2180 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2181 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2182 sonic_decoder_select="golomb rangecoder"
2183 sonic_encoder_select="golomb rangecoder"
2184 sonic_ls_encoder_select="golomb rangecoder"
2185 sp5x_decoder_select="mjpeg_decoder"
2186 svq1_decoder_select="hpeldsp"
2187 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2188 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2189 svq3_decoder_suggest="zlib"
2190 tak_decoder_select="audiodsp"
2191 theora_decoder_select="vp3_decoder"
2192 thp_decoder_select="mjpeg_decoder"
2193 tiff_decoder_suggest="zlib lzma"
2194 tiff_encoder_suggest="zlib"
2195 truehd_decoder_select="mlp_parser"
2196 truemotion2_decoder_select="bswapdsp"
2197 truespeech_decoder_select="bswapdsp"
2198 tscc_decoder_select="zlib"
2199 twinvq_decoder_select="mdct lsp sinewin"
2200 utvideo_decoder_select="bswapdsp"
2201 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2202 vble_decoder_select="huffyuvdsp"
2203 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2204 vc1image_decoder_select="vc1_decoder"
2205 vorbis_decoder_select="mdct"
2206 vorbis_encoder_select="mdct"
2207 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2208 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2209 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2210 vp6a_decoder_select="vp6_decoder"
2211 vp6f_decoder_select="vp6_decoder"
2212 vp7_decoder_select="h264pred videodsp"
2213 vp8_decoder_select="h264pred videodsp"
2214 vp9_decoder_select="videodsp vp9_parser"
2215 webp_decoder_select="vp8_decoder"
2216 wmalossless_decoder_select="llauddsp"
2217 wmapro_decoder_select="mdct sinewin"
2218 wmav1_decoder_select="mdct sinewin"
2219 wmav1_encoder_select="mdct sinewin"
2220 wmav2_decoder_select="mdct sinewin"
2221 wmav2_encoder_select="mdct sinewin"
2222 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2223 wmv1_decoder_select="h263_decoder"
2224 wmv1_encoder_select="h263_encoder"
2225 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2226 wmv2_encoder_select="h263_encoder"
2227 wmv3_decoder_select="vc1_decoder"
2228 wmv3image_decoder_select="wmv3_decoder"
2229 zerocodec_decoder_select="zlib"
2230 zlib_decoder_select="zlib"
2231 zlib_encoder_select="zlib"
2232 zmbv_decoder_select="zlib"
2233 zmbv_encoder_select="zlib"
2234
2235 # hardware accelerators
2236 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2237 dxva2_deps="dxva2api_h"
2238 vaapi_deps="va_va_h"
2239 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2240 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2241 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2242 xvmc_deps="X11_extensions_XvMClib_h"
2243
2244 h263_vaapi_hwaccel_deps="vaapi"
2245 h263_vaapi_hwaccel_select="h263_decoder"
2246 h263_vdpau_hwaccel_deps="vdpau"
2247 h263_vdpau_hwaccel_select="h263_decoder"
2248 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2249 h264_dxva2_hwaccel_deps="dxva2"
2250 h264_dxva2_hwaccel_select="h264_decoder"
2251 h264_vaapi_hwaccel_deps="vaapi"
2252 h264_vaapi_hwaccel_select="h264_decoder"
2253 h264_vda_decoder_deps="vda"
2254 h264_vda_decoder_select="h264_decoder"
2255 h264_vda_hwaccel_deps="vda"
2256 h264_vda_hwaccel_select="h264_decoder"
2257 h264_vda_old_hwaccel_deps="vda"
2258 h264_vda_old_hwaccel_select="h264_decoder"
2259 h264_vdpau_decoder_deps="vdpau"
2260 h264_vdpau_decoder_select="h264_decoder"
2261 h264_vdpau_hwaccel_deps="vdpau"
2262 h264_vdpau_hwaccel_select="h264_decoder"
2263 mpeg_vdpau_decoder_deps="vdpau"
2264 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2265 mpeg_xvmc_hwaccel_deps="xvmc"
2266 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2267 mpeg1_vdpau_decoder_deps="vdpau"
2268 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2269 mpeg1_vdpau_hwaccel_deps="vdpau"
2270 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2271 mpeg1_xvmc_hwaccel_deps="xvmc"
2272 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2273 mpeg2_crystalhd_decoder_select="crystalhd"
2274 mpeg2_dxva2_hwaccel_deps="dxva2"
2275 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2276 mpeg2_vaapi_hwaccel_deps="vaapi"
2277 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2278 mpeg2_vdpau_hwaccel_deps="vdpau"
2279 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2280 mpeg2_xvmc_hwaccel_deps="xvmc"
2281 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2282 mpeg4_crystalhd_decoder_select="crystalhd"
2283 mpeg4_vaapi_hwaccel_deps="vaapi"
2284 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2285 mpeg4_vdpau_decoder_deps="vdpau"
2286 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2287 mpeg4_vdpau_hwaccel_deps="vdpau"
2288 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2289 msmpeg4_crystalhd_decoder_select="crystalhd"
2290 vc1_crystalhd_decoder_select="crystalhd"
2291 vc1_dxva2_hwaccel_deps="dxva2"
2292 vc1_dxva2_hwaccel_select="vc1_decoder"
2293 vc1_vaapi_hwaccel_deps="vaapi"
2294 vc1_vaapi_hwaccel_select="vc1_decoder"
2295 vc1_vdpau_decoder_deps="vdpau"
2296 vc1_vdpau_decoder_select="vc1_decoder"
2297 vc1_vdpau_hwaccel_deps="vdpau"
2298 vc1_vdpau_hwaccel_select="vc1_decoder"
2299 wmv3_crystalhd_decoder_select="crystalhd"
2300 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2301 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2302 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2303 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2304
2305 # parsers
2306 h264_parser_select="h264_decoder"
2307 hevc_parser_select="hevc_decoder"
2308 mpegvideo_parser_select="mpegvideo"
2309 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2310 vc1_parser_select="mpegvideo startcode vc1_decoder"
2311
2312 # external libraries
2313 libaacplus_encoder_deps="libaacplus"
2314 libcelt_decoder_deps="libcelt"
2315 libfaac_encoder_deps="libfaac"
2316 libfaac_encoder_select="audio_frame_queue"
2317 libfdk_aac_decoder_deps="libfdk_aac"
2318 libfdk_aac_encoder_deps="libfdk_aac"
2319 libfdk_aac_encoder_select="audio_frame_queue"
2320 libgme_demuxer_deps="libgme"
2321 libgsm_decoder_deps="libgsm"
2322 libgsm_encoder_deps="libgsm"
2323 libgsm_ms_decoder_deps="libgsm"
2324 libgsm_ms_encoder_deps="libgsm"
2325 libilbc_decoder_deps="libilbc"
2326 libilbc_encoder_deps="libilbc"
2327 libmodplug_demuxer_deps="libmodplug"
2328 libmp3lame_encoder_deps="libmp3lame"
2329 libmp3lame_encoder_select="audio_frame_queue"
2330 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2331 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2332 libopencore_amrnb_encoder_select="audio_frame_queue"
2333 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2334 libopenjpeg_decoder_deps="libopenjpeg"
2335 libopenjpeg_encoder_deps="libopenjpeg"
2336 libopus_decoder_deps="libopus"
2337 libopus_encoder_deps="libopus"
2338 libopus_encoder_select="audio_frame_queue"
2339 libquvi_demuxer_deps="libquvi"
2340 libschroedinger_decoder_deps="libschroedinger"
2341 libschroedinger_encoder_deps="libschroedinger"
2342 libshine_encoder_deps="libshine"
2343 libshine_encoder_select="audio_frame_queue"
2344 libspeex_decoder_deps="libspeex"
2345 libspeex_encoder_deps="libspeex"
2346 libspeex_encoder_select="audio_frame_queue"
2347 libstagefright_h264_decoder_deps="libstagefright_h264"
2348 libtheora_encoder_deps="libtheora"
2349 libtwolame_encoder_deps="libtwolame"
2350 libvo_aacenc_encoder_deps="libvo_aacenc"
2351 libvo_aacenc_encoder_select="audio_frame_queue"
2352 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2353 libvorbis_decoder_deps="libvorbis"
2354 libvorbis_encoder_deps="libvorbis"
2355 libvorbis_encoder_select="audio_frame_queue"
2356 libvpx_vp8_decoder_deps="libvpx"
2357 libvpx_vp8_encoder_deps="libvpx"
2358 libvpx_vp9_decoder_deps="libvpx"
2359 libvpx_vp9_encoder_deps="libvpx"
2360 libwavpack_encoder_deps="libwavpack"
2361 libwebp_encoder_deps="libwebp"
2362 libx264_encoder_deps="libx264"
2363 libx264rgb_encoder_deps="libx264"
2364 libx265_encoder_deps="libx265"
2365 libxavs_encoder_deps="libxavs"
2366 libxvid_encoder_deps="libxvid"
2367 libutvideo_decoder_deps="libutvideo"
2368 libutvideo_encoder_deps="libutvideo"
2369 libzvbi_teletext_decoder_deps="libzvbi"
2370
2371 # demuxers / muxers
2372 ac3_demuxer_select="ac3_parser"
2373 asf_demuxer_select="riffdec"
2374 asf_muxer_select="riffenc"
2375 asf_stream_muxer_select="asf_muxer"
2376 avi_demuxer_select="riffdec exif"
2377 avi_muxer_select="riffenc"
2378 avisynth_demuxer_deps="avisynth"
2379 avisynth_demuxer_select="riffdec"
2380 caf_demuxer_select="riffdec"
2381 dirac_demuxer_select="dirac_parser"
2382 dts_demuxer_select="dca_parser"
2383 dtshd_demuxer_select="dca_parser"
2384 dv_demuxer_select="dvprofile"
2385 dv_muxer_select="dvprofile"
2386 dxa_demuxer_select="riffdec"
2387 eac3_demuxer_select="ac3_parser"
2388 f4v_muxer_select="mov_muxer"
2389 flac_demuxer_select="flac_parser"
2390 hds_muxer_select="flv_muxer"
2391 hls_muxer_select="mpegts_muxer"
2392 image2_alias_pix_demuxer_select="image2_demuxer"
2393 image2_brender_pix_demuxer_select="image2_demuxer"
2394 ipod_muxer_select="mov_muxer"
2395 ismv_muxer_select="mov_muxer"
2396 libnut_demuxer_deps="libnut"
2397 libnut_muxer_deps="libnut"
2398 matroska_audio_muxer_select="matroska_muxer"
2399 matroska_demuxer_select="riffdec"
2400 matroska_demuxer_suggest="bzlib lzo zlib"
2401 matroska_muxer_select="riffenc"
2402 mmf_muxer_select="riffenc"
2403 mov_demuxer_select="riffdec"
2404 mov_demuxer_suggest="zlib"
2405 mov_muxer_select="riffenc rtpenc_chain"
2406 mp3_demuxer_select="mpegaudio_parser"
2407 mp4_muxer_select="mov_muxer"
2408 mpegts_muxer_select="adts_muxer latm_muxer"
2409 mpegtsraw_demuxer_select="mpegts_demuxer"
2410 mxf_d10_muxer_select="mxf_muxer"
2411 nut_muxer_select="riffenc"
2412 nuv_demuxer_select="riffdec"
2413 oga_muxer_select="ogg_muxer"
2414 ogg_demuxer_select="golomb"
2415 opus_muxer_select="ogg_muxer"
2416 psp_muxer_select="mov_muxer"
2417 rtp_demuxer_select="sdp_demuxer"
2418 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2419 rtsp_demuxer_select="http_protocol rtpdec"
2420 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2421 sap_demuxer_select="sdp_demuxer"
2422 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2423 sdp_demuxer_select="rtpdec"
2424 smoothstreaming_muxer_select="ismv_muxer"
2425 spdif_muxer_select="aac_parser"
2426 spx_muxer_select="ogg_muxer"
2427 tak_demuxer_select="tak_parser"
2428 tg2_muxer_select="mov_muxer"
2429 tgp_muxer_select="mov_muxer"
2430 vobsub_demuxer_select="mpegps_demuxer"
2431 w64_demuxer_select="wav_demuxer"
2432 w64_muxer_select="wav_muxer"
2433 wav_demuxer_select="riffdec"
2434 wav_muxer_select="riffenc"
2435 webm_muxer_select="riffenc"
2436 wtv_demuxer_select="riffdec"
2437 wtv_muxer_select="riffenc"
2438 xmv_demuxer_select="riffdec"
2439 xwma_demuxer_select="riffdec"
2440
2441 # indevs / outdevs
2442 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2443 alsa_outdev_deps="alsa_asoundlib_h"
2444 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2445 avfoundation_indev_select="avfoundation"
2446 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2447 caca_outdev_deps="libcaca"
2448 decklink_outdev_deps="decklink pthreads"
2449 decklink_outdev_extralibs="-lstdc++"
2450 dshow_indev_deps="IBaseFilter"
2451 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2452 dv1394_indev_deps="dv1394"
2453 dv1394_indev_select="dv_demuxer"
2454 fbdev_indev_deps="linux_fb_h"
2455 fbdev_outdev_deps="linux_fb_h"
2456 gdigrab_indev_deps="CreateDIBSection"
2457 gdigrab_indev_extralibs="-lgdi32"
2458 gdigrab_indev_select="bmp_decoder"
2459 iec61883_indev_deps="libiec61883"
2460 jack_indev_deps="jack_jack_h sem_timedwait"
2461 lavfi_indev_deps="avfilter"
2462 libcdio_indev_deps="libcdio"
2463 libdc1394_indev_deps="libdc1394"
2464 libv4l2_indev_deps="libv4l2"
2465 openal_indev_deps="openal"
2466 opengl_outdev_deps="opengl"
2467 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2468 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2469 pulse_indev_deps="libpulse"
2470 pulse_outdev_deps="libpulse"
2471 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2472 qtkit_indev_select="qtkit"
2473 sdl_outdev_deps="sdl"
2474 sndio_indev_deps="sndio_h"
2475 sndio_outdev_deps="sndio_h"
2476 v4l_indev_deps="linux_videodev_h"
2477 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2478 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2479 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2480 vfwcap_indev_extralibs="-lavicap32"
2481 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2482 xv_outdev_extralibs="-lXv -lX11 -lXext"
2483 x11grab_indev_deps="x11grab"
2484
2485 # protocols
2486 bluray_protocol_deps="libbluray"
2487 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2488 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2489 ffrtmpcrypt_protocol_select="tcp_protocol"
2490 ffrtmphttp_protocol_deps="!librtmp_protocol"
2491 ffrtmphttp_protocol_select="http_protocol"
2492 ftp_protocol_select="tcp_protocol"
2493 gopher_protocol_select="network"
2494 http_protocol_select="tcp_protocol"
2495 httpproxy_protocol_select="tcp_protocol"
2496 https_protocol_select="tls_protocol"
2497 icecast_protocol_select="http_protocol"
2498 librtmp_protocol_deps="librtmp"
2499 librtmpe_protocol_deps="librtmp"
2500 librtmps_protocol_deps="librtmp"
2501 librtmpt_protocol_deps="librtmp"
2502 librtmpte_protocol_deps="librtmp"
2503 libsmbclient_protocol_deps="libsmbclient gplv3"
2504 libssh_protocol_deps="libssh"
2505 mmsh_protocol_select="http_protocol"
2506 mmst_protocol_select="network"
2507 rtmp_protocol_deps="!librtmp_protocol"
2508 rtmp_protocol_select="tcp_protocol"
2509 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2510 rtmps_protocol_deps="!librtmp_protocol"
2511 rtmps_protocol_select="tls_protocol"
2512 rtmpt_protocol_select="ffrtmphttp_protocol"
2513 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2514 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2515 rtp_protocol_select="udp_protocol"
2516 sctp_protocol_deps="struct_sctp_event_subscribe"
2517 sctp_protocol_select="network"
2518 srtp_protocol_select="rtp_protocol"
2519 tcp_protocol_select="network"
2520 tls_protocol_deps_any="openssl gnutls"
2521 tls_protocol_select="tcp_protocol"
2522 udp_protocol_select="network"
2523 unix_protocol_deps="sys_un_h"
2524 unix_protocol_select="network"
2525
2526 # filters
2527 aconvert_filter_deps="swresample"
2528 amovie_filter_deps="avcodec avformat"
2529 aresample_filter_deps="swresample"
2530 ass_filter_deps="libass"
2531 asyncts_filter_deps="avresample"
2532 atempo_filter_deps="avcodec"
2533 atempo_filter_select="rdft"
2534 azmq_filter_deps="libzmq"
2535 blackframe_filter_deps="gpl"
2536 boxblur_filter_deps="gpl"
2537 bs2b_filter_deps="libbs2b"
2538 colormatrix_filter_deps="gpl"
2539 cropdetect_filter_deps="gpl"
2540 delogo_filter_deps="gpl"
2541 deshake_filter_select="pixelutils"
2542 drawtext_filter_deps="libfreetype"
2543 ebur128_filter_deps="gpl"
2544 flite_filter_deps="libflite"
2545 frei0r_filter_deps="frei0r dlopen"
2546 frei0r_filter_extralibs='$ldl'
2547 frei0r_src_filter_deps="frei0r dlopen"
2548 frei0r_src_filter_extralibs='$ldl'
2549 geq_filter_deps="gpl"
2550 histeq_filter_deps="gpl"
2551 hqdn3d_filter_deps="gpl"
2552 interlace_filter_deps="gpl"
2553 kerndeint_filter_deps="gpl"
2554 ladspa_filter_deps="ladspa dlopen"
2555 ladspa_filter_extralibs='$ldl'
2556 mcdeint_filter_deps="avcodec gpl"
2557 movie_filter_deps="avcodec avformat"
2558 mp_filter_deps="gpl avcodec swscale inline_asm"
2559 mpdecimate_filter_deps="gpl"
2560 mpdecimate_filter_select="pixelutils"
2561 mptestsrc_filter_deps="gpl"
2562 negate_filter_deps="lut_filter"
2563 perspective_filter_deps="gpl"
2564 ocv_filter_deps="libopencv"
2565 owdenoise_filter_deps="gpl"
2566 pan_filter_deps="swresample"
2567 phase_filter_deps="gpl"
2568 pp_filter_deps="gpl postproc"
2569 pullup_filter_deps="gpl"
2570 removelogo_filter_deps="avcodec avformat swscale"
2571 resample_filter_deps="avresample"
2572 sab_filter_deps="gpl swscale"
2573 scale_filter_deps="swscale"
2574 select_filter_select="pixelutils"
2575 smartblur_filter_deps="gpl swscale"
2576 showspectrum_filter_deps="avcodec"
2577 showspectrum_filter_select="rdft"
2578 spp_filter_deps="gpl avcodec"
2579 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2580 stereo3d_filter_deps="gpl"
2581 subtitles_filter_deps="avformat avcodec libass"
2582 super2xsai_filter_deps="gpl"
2583 tinterlace_filter_deps="gpl"
2584 vidstabdetect_filter_deps="libvidstab"
2585 vidstabtransform_filter_deps="libvidstab"
2586 pixfmts_super2xsai_test_deps="super2xsai_filter"
2587 tinterlace_merge_test_deps="tinterlace_filter"
2588 tinterlace_pad_test_deps="tinterlace_filter"
2589 zmq_filter_deps="libzmq"
2590 zoompan_filter_deps="swscale"
2591
2592 # examples
2593 avio_reading="avformat avcodec avutil"
2594 avcodec_example_deps="avcodec avutil"
2595 decoding_encoding_example_deps="avcodec avformat avutil"
2596 demuxing_decoding_example_deps="avcodec avformat avutil"
2597 extract_mvs_example_deps="avcodec avformat avutil"
2598 filter_audio_example_deps="avfilter avutil"
2599 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2600 filtering_video_example_deps="avfilter avcodec avformat avutil"
2601 metadata_example_deps="avformat avutil"
2602 muxing_example_deps="avcodec avformat avutil swscale"
2603 remuxing_example_deps="avcodec avformat avutil"
2604 resampling_audio_example_deps="avutil swresample"
2605 scaling_video_example_deps="avutil swscale"
2606 transcode_aac_example_deps="avcodec avformat swresample"
2607 transcoding_example_deps="avfilter avcodec avformat avutil"
2608
2609 # libraries, in linking order
2610 avcodec_deps="avutil"
2611 avdevice_deps="avformat avcodec avutil"
2612 avfilter_deps="avutil"
2613 avformat_deps="avcodec avutil"
2614 avresample_deps="avutil"
2615 postproc_deps="avutil gpl"
2616 swresample_deps="avutil"
2617 swscale_deps="avutil"
2618
2619 # programs
2620 ffmpeg_deps="avcodec avfilter avformat swresample"
2621 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2622                null_filter
2623                setpts_filter trim_filter"
2624 ffplay_deps="avcodec avformat swscale swresample sdl"
2625 ffplay_libs='$sdl_libs'
2626 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2627 ffprobe_deps="avcodec avformat"
2628 ffserver_deps="avformat fork sarestart"
2629 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2630
2631 # documentation
2632 podpages_deps="perl"
2633 manpages_deps="perl pod2man"
2634 htmlpages_deps="perl texi2html"
2635 txtpages_deps="perl makeinfo"
2636 doc_deps_any="manpages htmlpages podpages txtpages"
2637
2638 # default parameters
2639
2640 logfile="config.log"
2641
2642 # installation paths
2643 prefix_default="/usr/local"
2644 bindir_default='${prefix}/bin'
2645 datadir_default='${prefix}/share/ffmpeg'
2646 docdir_default='${prefix}/share/doc/ffmpeg'
2647 incdir_default='${prefix}/include'
2648 libdir_default='${prefix}/lib'
2649 mandir_default='${prefix}/share/man'
2650 shlibdir_default="$libdir_default"
2651
2652 # toolchain
2653 ar_default="ar"
2654 cc_default="gcc"
2655 cxx_default="g++"
2656 host_cc_default="gcc"
2657 cp_f="cp -f"
2658 doxygen_default="doxygen"
2659 install="install"
2660 ln_s="ln -s -f"
2661 nm_default="nm -g"
2662 objformat="elf"
2663 pkg_config_default=pkg-config
2664 ranlib_default="ranlib"
2665 strip_default="strip"
2666 yasmexe_default="yasm"
2667 windres_default="windres"
2668
2669 # OS
2670 target_os_default=$(tolower $(uname -s))
2671 host_os=$target_os_default
2672
2673 # machine
2674 if test "$target_os_default" = aix; then
2675     arch_default=$(uname -p)
2676     strip_default="strip -X32_64"
2677 else
2678     arch_default=$(uname -m)
2679 fi
2680 cpu="generic"
2681 intrinsics="none"
2682
2683 # configurable options
2684 enable $PROGRAM_LIST
2685 enable $DOCUMENT_LIST
2686 enable $EXAMPLE_LIST
2687 enable $(filter_out avresample $LIBRARY_LIST)
2688 enable stripping
2689
2690 enable asm
2691 enable debug
2692 enable doc
2693 enable optimizations
2694 enable runtime_cpudetect
2695 enable safe_bitstream_reader
2696 enable static
2697 enable swscale_alpha
2698
2699 sws_max_filter_size_default=256
2700 set_default sws_max_filter_size
2701
2702 # Enable hwaccels by default.
2703 enable dxva2 vaapi vda vdpau xvmc
2704 enable xlib
2705
2706 # build settings
2707 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2708 LIBPREF="lib"
2709 LIBSUF=".a"
2710 FULLNAME='$(NAME)$(BUILDSUF)'
2711 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2712 SLIBPREF="lib"
2713 SLIBSUF=".so"
2714 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2715 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2716 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2717 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2718 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2719 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2720
2721 asflags_filter=echo
2722 cflags_filter=echo
2723 ldflags_filter=echo
2724
2725 AS_C='-c'
2726 AS_O='-o $@'
2727 CC_C='-c'
2728 CC_E='-E -o $@'
2729 CC_O='-o $@'
2730 CXX_C='-c'
2731 CXX_O='-o $@'
2732 LD_O='-o $@'
2733 LD_LIB='-l%'
2734 LD_PATH='-L'
2735 HOSTCC_C='-c'
2736 HOSTCC_E='-E -o $@'
2737 HOSTCC_O='-o $@'
2738 HOSTLD_O='-o $@'
2739
2740 host_libs='-lm'
2741 host_cflags_filter=echo
2742 host_ldflags_filter=echo
2743
2744 target_path='$(CURDIR)'
2745
2746 # since the object filename is not given with the -MM flag, the compiler
2747 # is only able to print the basename, and we must add the path ourselves
2748 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2749 DEPFLAGS='-MM'
2750
2751 # find source path
2752 if test -f configure; then
2753     source_path=.
2754 else
2755     source_path=$(cd $(dirname "$0"); pwd)
2756     echo "$source_path" | grep -q '[[:blank:]]' &&
2757         die "Out of tree builds are impossible with whitespace in source path."
2758     test -e "$source_path/config.h" &&
2759         die "Out of tree builds are impossible with config.h in source dir."
2760 fi
2761
2762 for v in "$@"; do
2763     r=${v#*=}
2764     l=${v%"$r"}
2765     r=$(sh_quote "$r")
2766     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2767 done
2768
2769 find_things(){
2770     thing=$1
2771     pattern=$2
2772     file=$source_path/$3
2773     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2774 }
2775
2776 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2777 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2778 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2779 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2780 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2781 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2782 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2783 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2784 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2785 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2786 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2787
2788 ALL_COMPONENTS="
2789     $BSF_LIST
2790     $DECODER_LIST
2791     $DEMUXER_LIST
2792     $ENCODER_LIST
2793     $FILTER_LIST
2794     $HWACCEL_LIST
2795     $INDEV_LIST
2796     $MUXER_LIST
2797     $OUTDEV_LIST
2798     $PARSER_LIST
2799     $PROTOCOL_LIST
2800 "
2801
2802 for n in $COMPONENT_LIST; do
2803     v=$(toupper ${n%s})_LIST
2804     eval enable \$$v
2805     eval ${n}_if_any="\$$v"
2806 done
2807
2808 enable $ARCH_EXT_LIST
2809
2810 die_unknown(){
2811     echo "Unknown option \"$1\"."
2812     echo "See $0 --help for available options."
2813     exit 1
2814 }
2815
2816 print_3_columns() {
2817     cat | tr ' ' '\n' | sort | pr -r -3 -t
2818 }
2819
2820 show_list() {
2821     suffix=_$1
2822     shift
2823     echo $* | sed s/$suffix//g | print_3_columns
2824     exit 0
2825 }
2826
2827 rand_list(){
2828     IFS=', '
2829     set -- $*
2830     unset IFS
2831     for thing; do
2832         comp=${thing%:*}
2833         prob=${thing#$comp}
2834         prob=${prob#:}
2835         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2836         echo "prob ${prob:-0.5}"
2837         printf '%s\n' $comp
2838     done
2839 }
2840
2841 do_random(){
2842     action=$1
2843     shift
2844     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2845     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2846 }
2847
2848 for opt do
2849     optval="${opt#*=}"
2850     case "$opt" in
2851         --extra-ldflags=*)
2852             add_ldflags $optval
2853         ;;
2854         --extra-ldexeflags=*)
2855             add_ldexeflags $optval
2856         ;;
2857         --extra-libs=*)
2858             add_extralibs $optval
2859         ;;
2860         --disable-devices)
2861             disable $INDEV_LIST $OUTDEV_LIST
2862         ;;
2863         --enable-debug=*)
2864             debuglevel="$optval"
2865         ;;
2866         --disable-programs)
2867             disable $PROGRAM_LIST
2868         ;;
2869         --disable-everything)
2870             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2871         ;;
2872         --disable-all)
2873             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2874             disable $LIBRARY_LIST $PROGRAM_LIST doc
2875         ;;
2876         --enable-random|--disable-random)
2877             action=${opt%%-random}
2878             do_random ${action#--} $COMPONENT_LIST
2879         ;;
2880         --enable-random=*|--disable-random=*)
2881             action=${opt%%-random=*}
2882             do_random ${action#--} $optval
2883         ;;
2884         --enable-*=*|--disable-*=*)
2885             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2886             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2887             eval list=\$$(toupper $thing)_LIST
2888             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2889             list=$(filter "$name" $list)
2890             [ "$list" = "" ] && warn "Option $opt did not match anything"
2891             $action $list
2892         ;;
2893         --enable-?*|--disable-?*)
2894             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2895             if is_in $option $COMPONENT_LIST; then
2896                 test $action = disable && action=unset
2897                 eval $action \$$(toupper ${option%s})_LIST
2898             elif is_in $option $CMDLINE_SELECT; then
2899                 $action $option
2900             else
2901                 die_unknown $opt
2902             fi
2903         ;;
2904         --list-*)
2905             NAME="${opt#--list-}"
2906             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2907             NAME=${NAME%s}
2908             eval show_list $NAME \$$(toupper $NAME)_LIST
2909         ;;
2910         --help|-h) show_help
2911         ;;
2912         --fatal-warnings) enable fatal_warnings
2913         ;;
2914         *)
2915             optname="${opt%%=*}"
2916             optname="${optname#--}"
2917             optname=$(echo "$optname" | sed 's/-/_/g')
2918             if is_in $optname $CMDLINE_SET; then
2919                 eval $optname='$optval'
2920             elif is_in $optname $CMDLINE_APPEND; then
2921                 append $optname "$optval"
2922             else
2923                 die_unknown $opt
2924             fi
2925         ;;
2926     esac
2927 done
2928
2929 disabled logging && logfile=/dev/null
2930
2931 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2932 set >> $logfile
2933
2934 test -n "$cross_prefix" && enable cross_compile
2935
2936 if enabled cross_compile; then
2937     test -n "$arch" && test -n "$target_os" ||
2938         die "Must specify target arch and OS when cross-compiling"
2939 fi
2940
2941 ar_default="${cross_prefix}${ar_default}"
2942 cc_default="${cross_prefix}${cc_default}"
2943 cxx_default="${cross_prefix}${cxx_default}"
2944 nm_default="${cross_prefix}${nm_default}"
2945 pkg_config_default="${cross_prefix}${pkg_config_default}"
2946 ranlib_default="${cross_prefix}${ranlib_default}"
2947 strip_default="${cross_prefix}${strip_default}"
2948 windres_default="${cross_prefix}${windres_default}"
2949
2950 sysinclude_default="${sysroot}/usr/include"
2951
2952 test -n "$valgrind" && toolchain="valgrind-memcheck"
2953
2954 case "$toolchain" in
2955     clang-asan)
2956         cc_default="clang"
2957         add_cflags  -fsanitize=address
2958         add_ldflags -fsanitize=address
2959     ;;
2960     clang-tsan)
2961         cc_default="clang"
2962         add_cflags  -fsanitize=thread -pie
2963         add_ldflags -fsanitize=thread -pie
2964     ;;
2965     clang-usan)
2966         cc_default="clang"
2967         add_cflags  -fsanitize=undefined
2968         add_ldflags -fsanitize=undefined
2969     ;;
2970     gcc-asan)
2971         cc_default="gcc"
2972         add_cflags  -fsanitize=address
2973         add_ldflags -fsanitize=address
2974     ;;
2975     gcc-tsan)
2976         cc_default="gcc"
2977         add_cflags  -fsanitize=thread -pie -fPIC
2978         add_ldflags -fsanitize=thread -pie -fPIC
2979     ;;
2980     gcc-usan)
2981         cc_default="gcc"
2982         add_cflags  -fsanitize=undefined
2983         add_ldflags -fsanitize=undefined
2984     ;;
2985     valgrind-massif)
2986         target_exec_default=${valgrind:-"valgrind"}
2987         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"
2988     ;;
2989     valgrind-memcheck)
2990         target_exec_default=${valgrind:-"valgrind"}
2991         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2992     ;;
2993     msvc)
2994         # Check whether the current MSVC version needs the C99 converter.
2995         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2996         # support enough of C99 to build ffmpeg. Default to the new
2997         # behaviour if the regexp was unable to match anything, since this
2998         # successfully parses the version number of existing supported
2999         # versions that require the converter (MSVC 2010 and 2012).
3000         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3001         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3002             cc_default="cl"
3003         else
3004             cc_default="c99wrap cl"
3005         fi
3006         ld_default="link"
3007         nm_default="dumpbin -symbols"
3008         ar_default="lib"
3009         target_os_default="win32"
3010         # Use a relative path for TMPDIR. This makes sure all the
3011         # ffconf temp files are written with a relative path, avoiding
3012         # issues with msys/win32 path conversion for MSVC parameters
3013         # such as -Fo<file> or -out:<file>.
3014         TMPDIR=.
3015     ;;
3016     icl)
3017         cc_default="icl"
3018         ld_default="xilink"
3019         nm_default="dumpbin -symbols"
3020         ar_default="xilib"
3021         target_os_default="win32"
3022         TMPDIR=.
3023     ;;
3024     gcov)
3025         add_cflags  -fprofile-arcs -ftest-coverage
3026         add_ldflags -fprofile-arcs -ftest-coverage
3027     ;;
3028     hardened)
3029         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
3030         add_ldflags -Wl,-z,relro -Wl,-z,now
3031     ;;
3032     ?*)
3033         die "Unknown toolchain $toolchain"
3034     ;;
3035 esac
3036
3037 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3038     target_exec target_os yasmexe
3039 enabled cross_compile || host_cc_default=$cc
3040 set_default host_cc
3041
3042 if ! $pkg_config --version >/dev/null 2>&1; then
3043     warn "$pkg_config not found, library detection may fail."
3044     pkg_config=false
3045 fi
3046
3047 if test $doxygen != $doxygen_default && \
3048   ! $doxygen --version >/dev/null 2>&1; then
3049     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3050 fi
3051
3052 exesuf() {
3053     case $1 in
3054         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3055     esac
3056 }
3057
3058 EXESUF=$(exesuf $target_os)
3059 HOSTEXESUF=$(exesuf $host_os)
3060
3061 # set temporary file name
3062 : ${TMPDIR:=$TEMPDIR}
3063 : ${TMPDIR:=$TMP}
3064 : ${TMPDIR:=/tmp}
3065
3066 if [ -n "$tempprefix" ] ; then
3067     mktemp(){
3068         echo $tempprefix.${HOSTNAME}.${UID}
3069     }
3070 elif ! check_cmd mktemp -u XXXXXX; then
3071     # simple replacement for missing mktemp
3072     # NOT SAFE FOR GENERAL USE
3073     mktemp(){
3074         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3075     }
3076 fi
3077
3078 tmpfile(){
3079     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3080         (set -C; exec > $tmp) 2>/dev/null ||
3081         die "Unable to create temporary file in $TMPDIR."
3082     append TMPFILES $tmp
3083     eval $1=$tmp
3084 }
3085
3086 trap 'rm -f -- $TMPFILES' EXIT
3087
3088 tmpfile TMPASM .asm
3089 tmpfile TMPC   .c
3090 tmpfile TMPCPP .cpp
3091 tmpfile TMPE   $EXESUF
3092 tmpfile TMPH   .h
3093 tmpfile TMPM   .m
3094 tmpfile TMPO   .o
3095 tmpfile TMPS   .S
3096 tmpfile TMPSH  .sh
3097 tmpfile TMPV   .ver
3098
3099 unset -f mktemp
3100
3101 chmod +x $TMPE
3102
3103 # make sure we can execute files in $TMPDIR
3104 cat > $TMPSH 2>> $logfile <<EOF
3105 #! /bin/sh
3106 EOF
3107 chmod +x $TMPSH >> $logfile 2>&1
3108 if ! $TMPSH >> $logfile 2>&1; then
3109     cat <<EOF
3110 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3111 variable to another directory and make sure that it is not mounted noexec.
3112 EOF
3113     die "Sanity test failed."
3114 fi
3115
3116 armasm_flags(){
3117     for flag; do
3118         case $flag in
3119             # Filter out MSVC cl.exe options from cflags that shouldn't
3120             # be passed to gas-preprocessor
3121             -M[TD]*)                                            ;;
3122             *)                  echo $flag                      ;;
3123         esac
3124    done
3125 }
3126
3127 ccc_flags(){
3128     for flag; do
3129         case $flag in
3130             -std=c99)           echo -c99                       ;;
3131             -mcpu=*)            echo -arch ${flag#*=}           ;;
3132             -mieee)             echo -ieee                      ;;
3133             -O*|-fast)          echo $flag                      ;;
3134             -fno-math-errno)    echo -assume nomath_errno       ;;
3135             -g)                 echo -g3                        ;;
3136             -Wall)              echo -msg_enable level2         ;;
3137             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3138             -Wl,*)              echo $flag                      ;;
3139             -f*|-W*)                                            ;;
3140             *)                  echo $flag                      ;;
3141         esac
3142    done
3143 }
3144
3145 cparser_flags(){
3146     for flag; do
3147         case $flag in
3148             -Wno-switch)             echo -Wno-switch-enum ;;
3149             -Wno-format-zero-length) ;;
3150             -Wdisabled-optimization) ;;
3151             -Wno-pointer-sign)       echo -Wno-other ;;
3152             *)                       echo $flag ;;
3153         esac
3154     done
3155 }
3156
3157 msvc_common_flags(){
3158     for flag; do
3159         case $flag in
3160             # In addition to specifying certain flags under the compiler
3161             # specific filters, they must be specified here as well or else the
3162             # generic catch all at the bottom will print the original flag.
3163             -Wall)                ;;
3164             -std=c99)             ;;
3165             # Common flags
3166             -fomit-frame-pointer) ;;
3167             -g)                   echo -Z7 ;;
3168             -fno-math-errno)      ;;
3169             -fno-common)          ;;
3170             -fno-signed-zeros)    ;;
3171             -fPIC)                ;;
3172             -mthumb)              ;;
3173             -march=*)             ;;
3174             -lz)                  echo zlib.lib ;;
3175             -lavifil32)           echo vfw32.lib ;;
3176             -lavicap32)           echo vfw32.lib user32.lib ;;
3177             -l*)                  echo ${flag#-l}.lib ;;
3178             *)                    echo $flag ;;
3179         esac
3180     done
3181 }
3182
3183 msvc_flags(){
3184     msvc_common_flags "$@"
3185     for flag; do
3186         case $flag in
3187             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3188                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3189                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3190                                        -wd4554 \
3191                                        -wd4273 -wd4701 ;;
3192         esac
3193     done
3194 }
3195
3196 icl_flags(){
3197     msvc_common_flags "$@"
3198     for flag; do
3199         case $flag in
3200             # Despite what Intel's documentation says -Wall, which is supported
3201             # on Windows, does enable remarks so disable them here.
3202             -Wall)                echo $flag -Qdiag-disable:remark ;;
3203             -std=c99)             echo -Qstd=c99 ;;
3204             -flto)                echo -ipo ;;
3205         esac
3206     done
3207 }
3208
3209 icc_flags(){
3210     for flag; do
3211         case $flag in
3212             -flto)                echo -ipo ;;
3213             *)                    echo $flag ;;
3214         esac
3215     done
3216 }
3217
3218 pgi_flags(){
3219     for flag; do
3220         case $flag in
3221             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3222             -fomit-frame-pointer) echo -Mnoframe ;;
3223             -g)                   echo -gopt ;;
3224             *)                    echo $flag ;;
3225         esac
3226     done
3227 }
3228
3229 suncc_flags(){
3230     for flag; do
3231         case $flag in
3232             -march=*|-mcpu=*)
3233                 case "${flag#*=}" in
3234                     native)                   echo -xtarget=native       ;;
3235                     v9|niagara)               echo -xarch=sparc          ;;
3236                     ultrasparc)               echo -xarch=sparcvis       ;;
3237                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3238                     i586|pentium)             echo -xchip=pentium        ;;
3239                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3240                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3241                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3242                     pentium4*)          echo -xtarget=pentium4           ;;
3243                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3244                     *-sse3)             echo -xarch=sse3                 ;;
3245                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3246                     bonnell)                   echo -xarch=ssse3         ;;
3247                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3248                     westmere)                  echo -xtarget=westmere    ;;
3249                     silvermont)                echo -xarch=sse4_2        ;;
3250                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3251                     core-avx*|ivybridge|haswell|broadwell)
3252                                                echo -xarch=avx           ;;
3253                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3254                     btver1)                    echo -xarch=amdsse4a      ;;
3255                     btver2|bdver*)             echo -xarch=avx           ;;
3256                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3257                     k8|opteron|athlon64|athlon-fx)
3258                                                echo -xarch=sse2a         ;;
3259                     athlon*)                   echo -xarch=pentium_proa  ;;
3260                 esac
3261                 ;;
3262             -std=c99)             echo -xc99              ;;
3263             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3264             -fPIC)                echo -KPIC -xcode=pic32 ;;
3265             -W*,*)                echo $flag              ;;
3266             -f*-*|-W*|-mimpure-text)                      ;;
3267             -shared)              echo -G                 ;;
3268             *)                    echo $flag              ;;
3269         esac
3270     done
3271 }
3272
3273 tms470_flags(){
3274     for flag; do
3275         case $flag in
3276             -march=*|-mcpu=*)
3277                 case "${flag#*=}" in
3278                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3279                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3280                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3281                     armv6*|arm11*)          echo -mv=6   ;;
3282                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3283                                             echo -mv=5e  ;;
3284                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3285                 esac
3286                 ;;
3287             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3288             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3289             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3290             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3291             -msoft-float)   echo --float_support=vfplib       ;;
3292             -O[0-3]|-mf=*)  echo $flag                        ;;
3293             -g)             echo -g -mn                       ;;
3294             -pds=*)         echo $flag                        ;;
3295             -D*|-I*)        echo $flag                        ;;
3296             --gcc|--abi=*)  echo $flag                        ;;
3297             -me)            echo $flag                        ;;
3298         esac
3299     done
3300 }
3301
3302 probe_cc(){
3303     pfx=$1
3304     _cc=$2
3305
3306     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3307     unset _ld_o _ldflags _ld_lib _ld_path
3308     unset _depflags _DEPCMD _DEPFLAGS
3309     _flags_filter=echo
3310
3311     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3312         true # no-op to avoid reading stdin in following checks
3313     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3314         _type=llvm_gcc
3315         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3316         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3317         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3318         _cflags_speed='-O3'
3319         _cflags_size='-Os'
3320     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3321         _type=gcc
3322         gcc_version=$($_cc --version | head -n1)
3323         gcc_basever=$($_cc -dumpversion)
3324         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3325         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3326         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3327         if ! $_cc -dumpversion | grep -q '^2\.'; then
3328             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3329         fi
3330         _cflags_speed='-O3'
3331         _cflags_size='-Os'
3332     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3333         _type=icc
3334         _ident=$($_cc --version | head -n1)
3335         _depflags='-MMD'
3336         _cflags_speed='-O3'
3337         _cflags_size='-Os'
3338         _cflags_noopt='-O1'
3339         _flags_filter=icc_flags
3340     elif $_cc -v 2>&1 | grep -q xlc; then
3341         _type=xlc
3342         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3343         _cflags_speed='-O5'
3344         _cflags_size='-O5 -qcompact'
3345     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3346         _type=ccc
3347         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3348         _DEPFLAGS='-M'
3349         _cflags_speed='-fast'
3350         _cflags_size='-O1'
3351         _flags_filter=ccc_flags
3352     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3353         test -d "$sysroot" || die "No valid sysroot specified."
3354         _type=armcc
3355         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3356         armcc_conf="$PWD/armcc.conf"
3357         $_cc --arm_linux_configure                 \
3358              --arm_linux_config_file="$armcc_conf" \
3359              --configure_sysroot="$sysroot"        \
3360              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3361              die "Error creating armcc configuration file."
3362         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3363         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3364         as_default="${cross_prefix}gcc"
3365         _depflags='-MMD'
3366         _cflags_speed='-O3'
3367         _cflags_size='-Os'
3368     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3369         _type=tms470
3370         _ident=$($_cc -version | head -n1 | tr -s ' ')
3371         _flags='--gcc --abi=eabi -me'
3372         _cc_e='-ppl -fe=$@'
3373         _cc_o='-fe=$@'
3374         _depflags='-ppa -ppd=$(@:.o=.d)'
3375         _cflags_speed='-O3 -mf=5'
3376         _cflags_size='-O3 -mf=2'
3377         _flags_filter=tms470_flags
3378     elif $_cc -v 2>&1 | grep -q clang; then
3379         _type=clang
3380         _ident=$($_cc --version | head -n1)
3381         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3382         _cflags_speed='-O3'
3383         _cflags_size='-Os'
3384     elif $_cc -V 2>&1 | grep -q Sun; then
3385         _type=suncc
3386         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3387         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3388         _DEPFLAGS='-xM1 -xc99'
3389         _ldflags='-std=c99'
3390         _cflags_speed='-O5'
3391         _cflags_size='-O5 -xspace'
3392         _flags_filter=suncc_flags
3393     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3394         _type=pathscale
3395         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3396         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3397         _cflags_speed='-O2'
3398         _cflags_size='-Os'
3399         _flags_filter='filter_out -Wdisabled-optimization'
3400     elif $_cc -v 2>&1 | grep -q Open64; then
3401         _type=open64
3402         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3403         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3404         _cflags_speed='-O2'
3405         _cflags_size='-Os'
3406         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3407     elif $_cc -V 2>&1 | grep -q Portland; then
3408         _type=pgi
3409         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3410         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3411         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3412         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3413         _cflags_noopt="-O"
3414         _flags_filter=pgi_flags
3415     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3416         _type=armasm
3417         _ident=$($_cc | head -n1)
3418         # 4509: "This form of conditional instruction is deprecated"
3419         _flags="-nologo -ignore 4509"
3420         _flags_filter=armasm_flags
3421     elif $_cc 2>&1 | grep -q Microsoft; then
3422         _type=msvc
3423         _ident=$($cc 2>&1 | head -n1)
3424         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3425         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3426         _cflags_speed="-O2"
3427         _cflags_size="-O1"
3428         if $_cc 2>&1 | grep -q Linker; then
3429             _ld_o='-out:$@'
3430         else
3431             _ld_o='-Fe$@'
3432         fi
3433         _cc_o='-Fo$@'
3434         _cc_e='-P -Fi$@'
3435         _flags_filter=msvc_flags
3436         _ld_lib='lib%.a'
3437         _ld_path='-libpath:'
3438         _flags='-nologo'
3439         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3440         if [ $pfx = hostcc ]; then
3441             append _cflags -Dsnprintf=_snprintf
3442         fi
3443         disable stripping
3444     elif $_cc 2>&1 | grep -q Intel; then
3445         _type=icl
3446         _ident=$($cc 2>&1 | head -n1)
3447         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3448         # Not only is O3 broken on 13.x+ but it is slower on all previous
3449         # versions (tested) as well.
3450         _cflags_speed="-O2"
3451         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3452         if $_cc 2>&1 | grep -q Linker; then
3453             _ld_o='-out:$@'
3454         else
3455             _ld_o='-Fe$@'
3456         fi
3457         _cc_o='-Fo$@'
3458         _cc_e='-P'
3459         _flags_filter=icl_flags
3460         _ld_lib='lib%.a'
3461         _ld_path='-libpath:'
3462         # -Qdiag-error to make icl error when seeing certain unknown arguments
3463         _flags='-nologo -Qdiag-error:4044,10157'
3464         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3465         # with MSVC which enables it by default.
3466         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3467         if [ $pfx = hostcc ]; then
3468             append _cflags -Dsnprintf=_snprintf
3469         fi
3470     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3471         _type=cparser
3472         _ident=$($_cc --version | head -n1)
3473         _depflags='-MMD'
3474         _cflags_speed='-O4'
3475         _cflags_size='-O2'
3476         _flags_filter=cparser_flags
3477     fi
3478
3479     eval ${pfx}_type=\$_type
3480     eval ${pfx}_ident=\$_ident
3481 }
3482
3483 set_ccvars(){
3484     eval ${1}_C=\${_cc_c-\${${1}_C}}
3485     eval ${1}_E=\${_cc_e-\${${1}_E}}
3486     eval ${1}_O=\${_cc_o-\${${1}_O}}
3487
3488     if [ -n "$_depflags" ]; then
3489         eval ${1}_DEPFLAGS=\$_depflags
3490     else
3491         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3492         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3493         eval DEP${1}FLAGS=\$_flags
3494     fi
3495 }
3496
3497 probe_cc cc "$cc"
3498 cflags_filter=$_flags_filter
3499 cflags_speed=$_cflags_speed
3500 cflags_size=$_cflags_size
3501 cflags_noopt=$_cflags_noopt
3502 add_cflags $_flags $_cflags
3503 cc_ldflags=$_ldflags
3504 set_ccvars CC
3505
3506 probe_cc hostcc "$host_cc"
3507 host_cflags_filter=$_flags_filter
3508 add_host_cflags  $_flags $_cflags
3509 set_ccvars HOSTCC
3510
3511 test -n "$cc_type" && enable $cc_type ||
3512     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3513
3514 : ${as_default:=$cc}
3515 : ${dep_cc_default:=$cc}
3516 : ${ld_default:=$cc}
3517 : ${host_ld_default:=$host_cc}
3518 set_default ar as dep_cc ld host_ld windres
3519
3520 probe_cc as "$as"
3521 asflags_filter=$_flags_filter
3522 add_asflags $_flags $_cflags
3523 set_ccvars AS
3524
3525 probe_cc ld "$ld"
3526 ldflags_filter=$_flags_filter
3527 add_ldflags $_flags $_ldflags
3528 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3529 LD_O=${_ld_o-$LD_O}
3530 LD_LIB=${_ld_lib-$LD_LIB}
3531 LD_PATH=${_ld_path-$LD_PATH}
3532
3533 probe_cc hostld "$host_ld"
3534 host_ldflags_filter=$_flags_filter
3535 add_host_ldflags $_flags $_ldflags
3536 HOSTLD_O=${_ld_o-$HOSTLD_O}
3537
3538 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3539     probe_cc depcc "$dep_cc"
3540     CCDEP=${_DEPCMD:-$DEPCMD}
3541     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3542     DEPCCFLAGS=$_flags
3543 fi
3544
3545 if $ar 2>&1 | grep -q Microsoft; then
3546     arflags="-nologo"
3547     ar_o='-out:$@'
3548 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3549     arflags="rq"
3550     ar_o='$@'
3551 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3552     arflags='-Xany -r -c'
3553     ar_o='$@'
3554 else
3555     arflags="rc"
3556     ar_o='$@'
3557 fi
3558
3559 add_cflags $extra_cflags
3560 add_cxxflags $extra_cxxflags
3561 add_asflags $extra_cflags
3562
3563 if test -n "$sysroot"; then
3564     case "$cc_type" in
3565         gcc|llvm_gcc|clang)
3566             add_cppflags --sysroot="$sysroot"
3567             add_ldflags --sysroot="$sysroot"
3568 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3569             add_cppflags -isysroot "$sysroot"
3570             add_ldflags -isysroot "$sysroot"
3571         ;;
3572         tms470)
3573             add_cppflags -I"$sysinclude"
3574             add_ldflags  --sysroot="$sysroot"
3575         ;;
3576     esac
3577 fi
3578
3579 if test "$cpu" = host; then
3580     enabled cross_compile &&
3581         die "--cpu=host makes no sense when cross-compiling."
3582
3583     case "$cc_type" in
3584         gcc|llvm_gcc)
3585             check_native(){
3586                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3587                 sed -n "/cc1.*$1=/{
3588                             s/.*$1=\\([^ ]*\\).*/\\1/
3589                             p
3590                             q
3591                         }" $TMPE
3592             }
3593             cpu=$(check_native -march || check_native -mcpu)
3594         ;;
3595     esac
3596
3597     test "${cpu:-host}" = host &&
3598         die "--cpu=host not supported with compiler $cc"
3599 fi
3600
3601 # Deal with common $arch aliases
3602 case "$arch" in
3603     aarch64|arm64)
3604         arch="aarch64"
3605     ;;
3606     arm*|iPad*|iPhone*)
3607         arch="arm"
3608     ;;
3609     mips*|IP*)
3610         arch="mips"
3611     ;;
3612     parisc*|hppa*)
3613         arch="parisc"
3614     ;;
3615     "Power Macintosh"|ppc*|powerpc*)
3616         arch="ppc"
3617     ;;
3618     s390|s390x)
3619         arch="s390"
3620     ;;
3621     sh4|sh)
3622         arch="sh4"
3623     ;;
3624     sun4u|sparc*)
3625         arch="sparc"
3626     ;;
3627     tilegx|tile-gx)
3628         arch="tilegx"
3629     ;;
3630     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3631         arch="x86"
3632     ;;
3633 esac
3634
3635 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3636 enable $arch
3637
3638 # Add processor-specific flags
3639 if enabled aarch64; then
3640
3641     case $cpu in
3642         armv*)
3643             cpuflags="-march=$cpu"
3644         ;;
3645         *)
3646             cpuflags="-mcpu=$cpu"
3647         ;;
3648     esac
3649
3650 elif enabled alpha; then
3651
3652     cpuflags="-mcpu=$cpu"
3653
3654 elif enabled arm; then
3655
3656     check_arm_arch() {
3657         check_cpp_condition stddef.h \
3658             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3659             $cpuflags
3660     }
3661
3662     probe_arm_arch() {
3663         if   check_arm_arch 4;        then echo armv4;
3664         elif check_arm_arch 4T;       then echo armv4t;
3665         elif check_arm_arch 5;        then echo armv5;
3666         elif check_arm_arch 5E;       then echo armv5e;
3667         elif check_arm_arch 5T;       then echo armv5t;
3668         elif check_arm_arch 5TE;      then echo armv5te;
3669         elif check_arm_arch 5TEJ;     then echo armv5te;
3670         elif check_arm_arch 6;        then echo armv6;
3671         elif check_arm_arch 6J;       then echo armv6j;
3672         elif check_arm_arch 6K;       then echo armv6k;
3673         elif check_arm_arch 6Z;       then echo armv6z;
3674         elif check_arm_arch 6ZK;      then echo armv6zk;
3675         elif check_arm_arch 6T2;      then echo armv6t2;
3676         elif check_arm_arch 7;        then echo armv7;
3677         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3678         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3679         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3680         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3681         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3682         fi
3683     }
3684
3685     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3686
3687     case $cpu in
3688         armv*)
3689             cpuflags="-march=$cpu"
3690             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3691         ;;
3692         *)
3693             cpuflags="-mcpu=$cpu"
3694             case $cpu in
3695                 cortex-a*)                               subarch=armv7a  ;;
3696                 cortex-r*)                               subarch=armv7r  ;;
3697                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3698                 arm11*)                                  subarch=armv6   ;;
3699                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3700                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3701                 *)                             subarch=$(probe_arm_arch) ;;
3702             esac
3703         ;;
3704     esac
3705
3706     case "$subarch" in
3707         armv5t*)    enable fast_clz                ;;
3708         armv[6-8]*)
3709             enable fast_clz
3710             disabled fast_unaligned || enable fast_unaligned
3711             ;;
3712     esac
3713
3714 elif enabled avr32; then
3715
3716     case $cpu in
3717         ap7[02]0[0-2])
3718             subarch="avr32_ap"
3719             cpuflags="-mpart=$cpu"
3720         ;;
3721         ap)
3722             subarch="avr32_ap"
3723             cpuflags="-march=$cpu"
3724         ;;
3725         uc3[ab]*)
3726             subarch="avr32_uc"
3727             cpuflags="-mcpu=$cpu"
3728         ;;
3729         uc)
3730             subarch="avr32_uc"
3731             cpuflags="-march=$cpu"
3732         ;;
3733     esac
3734
3735 elif enabled bfin; then
3736
3737     cpuflags="-mcpu=$cpu"
3738
3739 elif enabled mips; then
3740
3741     cpuflags="-march=$cpu"
3742
3743     case $cpu in
3744         24kc)
3745             disable mipsfpu
3746             disable mipsdspr1
3747             disable mipsdspr2
3748         ;;
3749         24kf*)
3750             disable mipsdspr1
3751             disable mipsdspr2
3752         ;;
3753         24kec|34kc|1004kc)
3754             disable mipsfpu
3755             disable mipsdspr2
3756         ;;
3757         24kef*|34kf*|1004kf*)
3758             disable mipsdspr2
3759         ;;
3760         74kc)
3761             disable mipsfpu
3762         ;;
3763     esac
3764
3765 elif enabled ppc; then
3766
3767     disable ldbrx
3768     disable vsx
3769
3770     case $(tolower $cpu) in
3771         601|ppc601|powerpc601)
3772             cpuflags="-mcpu=601"
3773             disable altivec
3774         ;;
3775         603*|ppc603*|powerpc603*)
3776             cpuflags="-mcpu=603"
3777             disable altivec
3778         ;;
3779         604*|ppc604*|powerpc604*)
3780             cpuflags="-mcpu=604"
3781             disable altivec
3782         ;;
3783         g3|75*|ppc75*|powerpc75*)
3784             cpuflags="-mcpu=750"
3785             disable altivec
3786         ;;
3787         g4|745*|ppc745*|powerpc745*)
3788             cpuflags="-mcpu=7450"
3789         ;;
3790         74*|ppc74*|powerpc74*)
3791             cpuflags="-mcpu=7400"
3792         ;;
3793         g5|970|ppc970|powerpc970)
3794             cpuflags="-mcpu=970"
3795         ;;
3796         power[3-8]*)
3797             cpuflags="-mcpu=$cpu"
3798         ;;
3799         cell)
3800             cpuflags="-mcpu=cell"
3801             enable ldbrx
3802         ;;
3803         e500mc)
3804             cpuflags="-mcpu=e500mc"
3805             disable altivec
3806         ;;
3807         e500v2)
3808             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3809             disable altivec
3810             disable dcbzl
3811         ;;
3812         e500)
3813             cpuflags="-mcpu=8540 -mhard-float"
3814             disable altivec
3815             disable dcbzl
3816         ;;
3817     esac
3818
3819 elif enabled sparc; then
3820
3821     case $cpu in
3822         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3823             cpuflags="-mcpu=$cpu"
3824         ;;
3825         ultrasparc*|niagara[234])
3826             cpuflags="-mcpu=$cpu"
3827         ;;
3828     esac
3829
3830 elif enabled x86; then
3831
3832     case $cpu in
3833         i[345]86|pentium)
3834             cpuflags="-march=$cpu"
3835             disable mmx
3836         ;;
3837         # targets that do NOT support nopl and conditional mov (cmov)
3838         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3839             cpuflags="-march=$cpu"
3840             disable i686
3841         ;;
3842         # targets that do support nopl and conditional mov (cmov)
3843         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3844         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3845             cpuflags="-march=$cpu"
3846             enable i686
3847             enable fast_cmov
3848         ;;
3849         # targets that do support conditional mov but on which it's slow
3850         pentium4|pentium4m|prescott|nocona)
3851             cpuflags="-march=$cpu"
3852             enable i686
3853             disable fast_cmov
3854         ;;
3855     esac
3856
3857 fi
3858
3859 if [ "$cpu" != generic ]; then
3860     add_cflags  $cpuflags
3861     add_asflags $cpuflags
3862 fi
3863
3864 # compiler sanity check
3865 check_exec <<EOF
3866 int main(void){ return 0; }
3867 EOF
3868 if test "$?" != 0; then
3869     echo "$cc is unable to create an executable file."
3870     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3871         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3872         echo "Only do this if you know what cross compiling means."
3873     fi
3874     die "C compiler test failed."
3875 fi
3876
3877 add_cppflags -D_ISOC99_SOURCE
3878 add_cxxflags -D__STDC_CONSTANT_MACROS
3879 check_cflags -std=c99
3880 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3881 #include <stdlib.h>
3882 EOF
3883 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3884 #include <stdlib.h>
3885 EOF
3886
3887 add_host_cppflags -D_ISOC99_SOURCE
3888 check_host_cflags -std=c99
3889 check_host_cflags -Wall
3890 check_host_cflags -O3
3891
3892 check_64bit(){
3893     arch32=$1
3894     arch64=$2
3895     expr=$3
3896     check_code cc "" "int test[2*($expr) - 1]" &&
3897         subarch=$arch64 || subarch=$arch32
3898 }
3899
3900 case "$arch" in
3901     aarch64|alpha|ia64)
3902         spic=$shared
3903     ;;
3904     mips)
3905         check_64bit mips mips64 '_MIPS_SIM > 1'
3906         spic=$shared
3907     ;;
3908     parisc)
3909         check_64bit parisc parisc64 'sizeof(void *) > 4'
3910         spic=$shared
3911     ;;
3912     ppc)
3913         check_64bit ppc ppc64 'sizeof(void *) > 4'
3914         spic=$shared
3915     ;;
3916     s390)
3917         check_64bit s390 s390x 'sizeof(void *) > 4'
3918         spic=$shared
3919     ;;
3920     sparc)
3921         check_64bit sparc sparc64 'sizeof(void *) > 4'
3922         spic=$shared
3923     ;;
3924     x86)
3925         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3926         if test "$subarch" = "x86_64"; then
3927             spic=$shared
3928         fi
3929     ;;
3930     ppc)
3931         check_cc <<EOF && subarch="ppc64"
3932         int test[(int)sizeof(char*) - 7];
3933 EOF
3934     ;;
3935 esac
3936
3937 enable $subarch
3938 enabled spic && enable_weak pic
3939
3940 # OS specific
3941 case $target_os in
3942     aix)
3943         SHFLAGS=-shared
3944         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3945         enabled shared && add_ldflags -Wl,-brtl
3946         ;;
3947     android)
3948         disable symver
3949         SLIB_INSTALL_NAME='$(SLIBNAME)'
3950         SLIB_INSTALL_LINKS=
3951         # soname not set on purpose
3952         SHFLAGS=-shared
3953         ;;
3954     haiku)
3955         prefix_default="/boot/common"
3956         network_extralibs="-lnetwork"
3957         host_libs=
3958         ;;
3959     sunos)
3960         SHFLAGS='-shared -Wl,-h,$$(@F)'
3961         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3962         network_extralibs="-lsocket -lnsl"
3963         # When using suncc to build, the Solaris linker will mark
3964         # an executable with each instruction set encountered by
3965         # the Solaris assembler.  As our libraries contain their own
3966         # guards for processor-specific code, instead suppress
3967         # generation of the HWCAPS ELF section on Solaris x86 only.
3968         enabled_all suncc x86 &&
3969             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3970             add_ldflags -Wl,-M,mapfile
3971         nm_default='nm -P -g'
3972         ;;
3973     netbsd)
3974         disable symver
3975         oss_indev_extralibs="-lossaudio"
3976         oss_outdev_extralibs="-lossaudio"
3977         enabled gcc || check_ldflags -Wl,-zmuldefs
3978         ;;
3979     openbsd|bitrig)
3980         disable symver
3981         SHFLAGS='-shared'
3982         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3983         SLIB_INSTALL_LINKS=
3984         oss_indev_extralibs="-lossaudio"
3985         oss_outdev_extralibs="-lossaudio"
3986         ;;
3987     dragonfly)
3988         disable symver
3989         ;;
3990     freebsd)
3991         ;;
3992     bsd/os)
3993         add_extralibs -lpoll -lgnugetopt
3994         strip="strip -d"
3995         ;;
3996     darwin)
3997         enabled ppc && add_asflags -force_cpusubtype_ALL
3998         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3999         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4000         strip="${strip} -x"
4001         add_ldflags -Wl,-dynamic,-search_paths_first
4002         SLIBSUF=".dylib"
4003         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4004         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4005         objformat="macho"
4006         enabled x86_64 && objformat="macho64"
4007         enabled_any pic shared ||
4008             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4009         ;;
4010     mingw32*)
4011         if test $target_os = "mingw32ce"; then
4012             disable network
4013         else
4014             target_os=mingw32
4015         fi
4016         LIBTARGET=i386
4017         if enabled x86_64; then
4018             LIBTARGET="i386:x86-64"
4019         elif enabled arm; then
4020             LIBTARGET=arm-wince
4021         fi
4022         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4023         check_ldflags -Wl,--nxcompat
4024         check_ldflags -Wl,--dynamicbase
4025         shlibdir_default="$bindir_default"
4026         SLIBPREF=""
4027         SLIBSUF=".dll"
4028         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4029         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4030         dlltool="${cross_prefix}dlltool"
4031         if check_cmd lib.exe -list; then
4032             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4033             if enabled x86_64; then
4034                 LIBTARGET=x64
4035             fi
4036         elif check_cmd $dlltool --version; then
4037             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4038         fi
4039         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4040         SLIB_INSTALL_LINKS=
4041         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4042         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4043         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4044         objformat="win32"
4045         ranlib=:
4046         enable dos_paths
4047         ;;
4048     win32|win64)
4049         disable symver
4050         if enabled shared; then
4051             # Link to the import library instead of the normal static library
4052             # for shared libs.
4053             LD_LIB='%.lib'
4054             # Cannot build both shared and static libs with MSVC or icl.
4055             disable static
4056         fi
4057         shlibdir_default="$bindir_default"
4058         SLIBPREF=""
4059         SLIBSUF=".dll"
4060         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4061         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4062         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4063         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4064         SLIB_INSTALL_LINKS=
4065         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4066         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4067         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4068         objformat="win32"
4069         ranlib=:
4070         enable dos_paths
4071         ;;
4072     cygwin*)
4073         target_os=cygwin
4074         shlibdir_default="$bindir_default"
4075         SLIBPREF="cyg"
4076         SLIBSUF=".dll"
4077         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4078         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4079         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4080         SLIB_INSTALL_LINKS=
4081         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4082         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4083         objformat="win32"
4084         enable dos_paths
4085         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4086         ;;
4087     *-dos|freedos|opendos)
4088         network_extralibs="-lsocket"
4089         objformat="coff"
4090         enable dos_paths
4091         add_cppflags -U__STRICT_ANSI__
4092         ;;
4093     linux)
4094         enable dv1394
4095         ;;
4096     irix*)
4097         target_os=irix
4098         ranlib="echo ignoring ranlib"
4099         ;;
4100     os/2*)
4101         strip="lxlite -CS"
4102         ln_s="cp -f"
4103         objformat="aout"
4104         add_cppflags -D_GNU_SOURCE
4105         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4106         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4107         LIBSUF="_s.a"
4108         SLIBPREF=""
4109         SLIBSUF=".dll"
4110         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4111         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4112         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4113             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4114             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4115             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4116             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4117             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4118         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4119             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4120         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4121         enable dos_paths
4122         enable_weak os2threads
4123         ;;
4124     gnu/kfreebsd)
4125         add_cppflags -D_BSD_SOURCE
4126         ;;
4127     gnu)
4128         ;;
4129     qnx)
4130         add_cppflags -D_QNX_SOURCE
4131         network_extralibs="-lsocket"
4132         ;;
4133     symbian)
4134         SLIBSUF=".dll"
4135         enable dos_paths
4136         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4137         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4138         add_ldflags -Wl,--target1-abs,--no-undefined \
4139                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4140                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4141         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4142                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4143                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4144         ;;
4145     osf1)
4146         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4147         ;;
4148     minix)
4149         ;;
4150     plan9)
4151         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4152                      -D_REENTRANT_SOURCE        \
4153                      -D_RESEARCH_SOURCE         \
4154                      -DFD_SETSIZE=96            \
4155                      -DHAVE_SOCK_OPTS
4156         add_compat strtod.o strtod=avpriv_strtod
4157         network_extralibs='-lbsd'
4158         exeobjs=compat/plan9/main.o
4159         disable ffserver
4160         cp_f='cp'
4161         ;;
4162     none)
4163         ;;
4164     *)
4165         die "Unknown OS '$target_os'."
4166         ;;
4167 esac
4168
4169 # determine libc flavour
4170
4171 probe_libc(){
4172     pfx=$1
4173     pfx_no_=${pfx%_}
4174     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4175     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4176         eval ${pfx}libc_type=uclibc
4177         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4178     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4179         eval ${pfx}libc_type=glibc
4180         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4181     # MinGW headers can be installed on Cygwin, so check for newlib first.
4182     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4183         eval ${pfx}libc_type=newlib
4184         add_${pfx}cppflags -U__STRICT_ANSI__
4185     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4186     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4187         eval ${pfx}libc_type=mingw64
4188         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4189             add_compat msvcrt/snprintf.o
4190             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4191         fi
4192         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4193         eval test \$${pfx_no_}cc_type = "gcc" &&
4194             add_${pfx}cppflags -D__printf__=__gnu_printf__
4195     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4196          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4197         eval ${pfx}libc_type=mingw32
4198         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4199             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4200             die "ERROR: MinGW32 runtime version must be >= 3.15."
4201         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4202         eval test \$${pfx_no_}cc_type = "gcc" &&
4203             add_${pfx}cppflags -D__printf__=__gnu_printf__
4204     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4205         eval ${pfx}libc_type=msvcrt
4206         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4207         # 0x601 by default unless something else is set by the user.
4208         # This can easily lead to us detecting functions only present
4209         # in such new versions and producing binaries requiring windows 7.0.
4210         # Therefore explicitly set the default to XP unless the user has
4211         # set something else on the command line.
4212         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4213             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4214     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4215         eval ${pfx}libc_type=klibc
4216     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4217         eval ${pfx}libc_type=bionic
4218     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4219         eval ${pfx}libc_type=solaris
4220         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4221     fi
4222 }
4223
4224 probe_libc
4225 test -n "$libc_type" && enable libc_$libc_type
4226 probe_libc host_
4227 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4228
4229 case $libc_type in
4230     bionic)
4231         add_compat strtod.o strtod=avpriv_strtod
4232         ;;
4233     msvcrt)
4234         add_compat strtod.o strtod=avpriv_strtod
4235         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4236                                      _snprintf=avpriv_snprintf  \
4237                                      vsnprintf=avpriv_vsnprintf
4238         ;;
4239 esac
4240
4241 # hacks for compiler/libc/os combinations
4242
4243 if enabled_all tms470 libc_glibc; then
4244     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4245     add_cppflags -D__USER_LABEL_PREFIX__=
4246     add_cppflags -D__builtin_memset=memset
4247     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4248     add_cflags   -pds=48    # incompatible redefinition of macro
4249 fi
4250
4251 if enabled_all ccc libc_glibc; then
4252     add_ldflags -Wl,-z,now  # calls to libots crash without this
4253 fi
4254
4255 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4256     add_cppflags '-I\$(SRC_PATH)/compat/float'
4257
4258 esc(){
4259     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4260 }
4261
4262 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4263
4264 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4265
4266 set_default $PATHS_LIST
4267 set_default nm
4268
4269 # we need to build at least one lib type
4270 if ! enabled_any static shared; then
4271     cat <<EOF
4272 At least one library type must be built.
4273 Specify --enable-static to build the static libraries or --enable-shared to
4274 build the shared libraries as well. To only build the shared libraries specify
4275 --disable-static in addition to --enable-shared.
4276 EOF
4277     exit 1;
4278 fi
4279
4280 die_license_disabled() {
4281     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4282 }
4283
4284 die_license_disabled_gpl() {
4285     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4286 }
4287
4288 die_license_disabled gpl frei0r
4289 die_license_disabled gpl libcdio
4290 die_license_disabled gpl libsmbclient
4291 die_license_disabled gpl libutvideo
4292 die_license_disabled gpl libvidstab
4293 die_license_disabled gpl libx264
4294 die_license_disabled gpl libx265
4295 die_license_disabled gpl libxavs
4296 die_license_disabled gpl libxvid
4297 die_license_disabled gpl libzvbi
4298 die_license_disabled gpl x11grab
4299
4300 die_license_disabled nonfree libaacplus
4301 die_license_disabled nonfree libfaac
4302 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4303 enabled gpl && die_license_disabled_gpl nonfree openssl
4304
4305 die_license_disabled version3 libopencore_amrnb
4306 die_license_disabled version3 libopencore_amrwb
4307 die_license_disabled version3 libsmbclient
4308 die_license_disabled version3 libvo_aacenc
4309 die_license_disabled version3 libvo_amrwbenc
4310
4311 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4312
4313 disabled optimizations || check_cflags -fomit-frame-pointer
4314
4315 enable_weak_pic() {
4316     disabled pic && return
4317     enable pic
4318     add_cppflags -DPIC
4319     case "$target_os" in
4320     mingw*|cygwin*)
4321         ;;
4322     *)
4323         add_cflags -fPIC
4324         ;;
4325     esac
4326     add_asflags  -fPIC
4327 }
4328
4329 enabled pic && enable_weak_pic
4330
4331 check_cc <<EOF || die "Symbol mangling check failed."
4332 int ff_extern;
4333 EOF
4334 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4335 extern_prefix=${sym%%ff_extern*}
4336
4337 check_cc <<EOF && enable_weak inline_asm
4338 void foo(void) { __asm__ volatile ("" ::); }
4339 EOF
4340
4341 _restrict=
4342 for restrict_keyword in restrict __restrict__ __restrict; do
4343     check_cc <<EOF && _restrict=$restrict_keyword && break
4344 void foo(char * $restrict_keyword p);
4345 EOF
4346 done
4347
4348 check_cc <<EOF && enable pragma_deprecated
4349 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4350 EOF
4351
4352 check_cc <<EOF && enable attribute_packed
4353 struct { int x; } __attribute__((packed)) x;
4354 EOF
4355
4356 check_cc <<EOF && enable attribute_may_alias
4357 union { int x; } __attribute__((may_alias)) x;
4358 EOF
4359
4360 check_cc <<EOF || die "endian test failed"
4361 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4362 EOF
4363 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4364
4365 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4366     if ! enabled bigendian ;then
4367         enable vsx
4368     fi
4369 fi
4370
4371 check_gas() {
4372     log "check_gas using '$as' as AS"
4373     # :vararg is used on aarch64, arm and ppc altivec
4374     check_as <<EOF || return 1
4375 .macro m n, y:vararg=0
4376 \n: .int \y
4377 .endm
4378 m x
4379 EOF
4380     # .altmacro is only used in arm asm
4381     ! enabled arm || check_as <<EOF || return 1
4382 .altmacro
4383 EOF
4384     enable gnu_as
4385     return 0
4386 }
4387
4388 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4389     nogas=:
4390     enabled_any arm aarch64 && nogas=die
4391     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4392     as_noop=-v
4393
4394     case $as_type in
4395         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4396         gcc)  gaspp_as_type=gas ;;
4397         *)    gaspp_as_type=$as_type ;;
4398     esac
4399
4400     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4401
4402     test "${as#*gas-preprocessor.pl}" != "$as" ||
4403     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4404         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4405
4406     if ! check_gas ; then
4407         as=${gas:=$as}
4408         check_gas || \
4409             $nogas "GNU assembler not found, install/update gas-preprocessor"
4410     fi
4411
4412     check_as <<EOF && enable as_func
4413 .func test
4414 .endfunc
4415 EOF
4416 fi
4417
4418 check_inline_asm inline_asm_labels '"1:\n"'
4419
4420 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4421
4422 if enabled aarch64; then
4423     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4424     # internal assembler in clang 3.3 does not support this instruction
4425     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4426     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4427
4428     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4429
4430 elif enabled alpha; then
4431
4432     check_cflags -mieee
4433
4434 elif enabled arm; then
4435
4436     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4437 float func(float a, float b){ return a+b; }
4438 EOF
4439
4440     enabled thumb && check_cflags -mthumb || check_cflags -marm
4441
4442     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4443         enable vfp_args
4444     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4445         case "${cross_prefix:-$cc}" in
4446             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4447             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4448 __asm__ (".eabi_attribute 28, 1");
4449 int main(void) { return 0; }
4450 EOF
4451         esac
4452         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4453     fi
4454
4455     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4456     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4457     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4458     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4459     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4460     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4461     enabled setend  && check_insn setend  'setend be'
4462
4463     [ $target_os = linux ] || [ $target_os = android ] ||
4464         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4465             $ARCH_EXT_LIST_ARM
4466
4467     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4468
4469     check_as <<EOF && enable as_dn_directive
4470 ra .dn d0.i16
4471 .unreq ra
4472 EOF
4473
4474     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4475
4476 elif enabled mips; then
4477
4478     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4479     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4480      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4481     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4482      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4483     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4484      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4485     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4486      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4487
4488 elif enabled parisc; then
4489
4490     if enabled gcc; then
4491         case $($cc -dumpversion) in
4492             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4493         esac
4494     fi
4495
4496 elif enabled ppc; then
4497
4498     enable local_aligned_8 local_aligned_16 local_aligned_32
4499
4500     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4501     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4502     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4503     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4504
4505     # AltiVec flags: The FSF version of GCC differs from the Apple version
4506     if enabled altivec; then
4507         check_cflags -maltivec -mabi=altivec &&
4508         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4509         check_cflags -faltivec
4510
4511         # check if our compiler supports Motorola AltiVec C API
4512         check_cc <<EOF || disable altivec
4513 $inc_altivec_h
4514 int main(void) {
4515     vector signed int v1 = (vector signed int) { 0 };
4516     vector signed int v2 = (vector signed int) { 1 };
4517     v1 = vec_add(v1, v2);
4518     return 0;
4519 }
4520 EOF
4521
4522         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4523     fi
4524
4525     if enabled vsx; then
4526         check_cflags -mvsx
4527     fi
4528 elif enabled x86; then
4529
4530     check_builtin rdtsc    intrin.h   "__rdtsc()"
4531     check_builtin mm_empty mmintrin.h "_mm_empty()"
4532
4533     enable local_aligned_8 local_aligned_16 local_aligned_32
4534
4535     # check whether EBP is available on x86
4536     # As 'i' is stored on the stack, this program will crash
4537     # if the base pointer is used to access it because the
4538     # base pointer is cleared in the inline assembly code.
4539     check_exec_crash <<EOF && enable ebp_available
4540 volatile int i=0;
4541 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4542 return i;
4543 EOF
4544
4545     # check whether EBX is available on x86
4546     check_inline_asm ebx_available '""::"b"(0)' &&
4547         check_inline_asm ebx_available '"":::"%ebx"'
4548
4549     # check whether xmm clobbers are supported
4550     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4551
4552     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4553         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4554
4555     # check whether binutils is new enough to compile SSSE3/MMXEXT
4556     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4557     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4558
4559     if ! disabled_any asm mmx yasm; then
4560         if check_cmd $yasmexe --version; then
4561             enabled x86_64 && yasm_extra="-m amd64"
4562             yasm_debug="-g dwarf2"
4563         elif check_cmd nasm -v; then
4564             yasmexe=nasm
4565             yasm_debug="-g -F dwarf"
4566             if enabled x86_64; then
4567                 case "$objformat" in
4568                     elf)   objformat=elf64 ;;
4569                     win32) objformat=win64 ;;
4570                 esac
4571             fi
4572         fi
4573
4574         YASMFLAGS="-f $objformat $yasm_extra"
4575         enabled pic               && append YASMFLAGS "-DPIC"
4576         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4577         case "$objformat" in
4578             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4579         esac
4580
4581         check_yasm "movbe ecx, [5]" && enable yasm ||
4582             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4583         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4584         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4585         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4586         check_yasm "CPU amdnop" || disable cpunop
4587     fi
4588
4589     case "$cpu" in
4590         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4591             disable fast_clz
4592         ;;
4593     esac
4594
4595 fi
4596
4597 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4598
4599 check_ldflags -Wl,--as-needed
4600
4601 if check_func dlopen; then
4602     ldl=
4603 elif check_func dlopen -ldl; then
4604     ldl=-ldl
4605 fi
4606
4607 if ! disabled network; then
4608     check_func getaddrinfo $network_extralibs
4609     check_func getservbyport $network_extralibs
4610     check_func inet_aton $network_extralibs
4611
4612     check_type netdb.h "struct addrinfo"
4613     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4614     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4615     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4616     check_type poll.h "struct pollfd"
4617     check_type netinet/sctp.h "struct sctp_event_subscribe"
4618     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4619     check_type netinet/in.h "struct sockaddr_in6"
4620     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4621     check_type "sys/types.h sys/socket.h" socklen_t
4622
4623     # Prefer arpa/inet.h over winsock2
4624     if check_header arpa/inet.h ; then
4625         check_func closesocket
4626     elif check_header winsock2.h ; then
4627         check_func_headers winsock2.h closesocket -lws2 &&
4628             network_extralibs="-lws2" ||
4629         { check_func_headers winsock2.h closesocket -lws2_32 &&
4630             network_extralibs="-lws2_32"; } || disable winsock2_h network
4631         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4632
4633         check_type ws2tcpip.h socklen_t
4634         check_type ws2tcpip.h "struct addrinfo"
4635         check_type ws2tcpip.h "struct group_source_req"
4636         check_type ws2tcpip.h "struct ip_mreq_source"
4637         check_type ws2tcpip.h "struct ipv6_mreq"
4638         check_type winsock2.h "struct pollfd"
4639         check_struct winsock2.h "struct sockaddr" sa_len
4640         check_type ws2tcpip.h "struct sockaddr_in6"
4641         check_type ws2tcpip.h "struct sockaddr_storage"
4642     else
4643         disable network
4644     fi
4645 fi
4646
4647 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4648 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4649 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4650 check_builtin sarestart signal.h "SA_RESTART"
4651 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4652
4653 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4654 check_func  ${malloc_prefix}memalign            && enable memalign
4655 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4656
4657 check_func  access
4658 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt; }
4659 check_func  fcntl
4660 check_func  fork
4661 check_func  gethrtime
4662 check_func  getopt
4663 check_func  getrusage
4664 check_func  gettimeofday
4665 check_func  isatty
4666 check_func  localtime_r
4667 check_func  mach_absolute_time
4668 check_func  mkstemp
4669 check_func  mmap
4670 check_func  mprotect
4671 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4672 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4673 check_func  sched_getaffinity
4674 check_func  setrlimit
4675 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4676 check_func  strerror_r
4677 check_func  sysconf
4678 check_func  sysctl
4679 check_func  usleep
4680
4681 check_func_headers conio.h kbhit
4682 check_func_headers io.h setmode
4683 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4684 check_func_headers stdlib.h getenv
4685
4686 check_func_headers windows.h CoTaskMemFree -lole32
4687 check_func_headers windows.h GetProcessAffinityMask
4688 check_func_headers windows.h GetProcessTimes
4689 check_func_headers windows.h GetSystemTimeAsFileTime
4690 check_func_headers windows.h MapViewOfFile
4691 check_func_headers windows.h PeekNamedPipe
4692 check_func_headers windows.h SetConsoleTextAttribute
4693 check_func_headers windows.h Sleep
4694 check_func_headers windows.h VirtualAlloc
4695 check_func_headers glob.h glob
4696 enabled xlib &&
4697     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4698
4699 check_header cl/cl.h
4700 check_header direct.h
4701 check_header dlfcn.h
4702 check_header dxva.h
4703 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4704 check_header io.h
4705 check_header libcrystalhd/libcrystalhd_if.h
4706 check_header mach/mach_time.h
4707 check_header malloc.h
4708 check_header poll.h
4709 check_header sys/mman.h
4710 check_header sys/param.h
4711 check_header sys/resource.h
4712 check_header sys/select.h
4713 check_header sys/time.h
4714 check_header sys/un.h
4715 check_header termios.h
4716 check_header unistd.h
4717 check_header vdpau/vdpau.h
4718 check_header vdpau/vdpau_x11.h
4719 check_header VideoDecodeAcceleration/VDADecoder.h
4720 check_header windows.h
4721 check_header X11/extensions/XvMClib.h
4722 check_header asm/types.h
4723
4724 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4725 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4726 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4727
4728 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4729
4730 if ! disabled w32threads && ! enabled pthreads; then
4731     check_func_headers "windows.h process.h" _beginthreadex &&
4732         enable w32threads || disable w32threads
4733 fi
4734
4735 # check for some common methods of building with pthread support
4736 # do this before the optional library checks as some of them require pthreads
4737 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4738     enable pthreads
4739     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4740         add_cflags -pthread
4741         add_extralibs -pthread
4742     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4743         add_cflags -pthreads
4744         add_extralibs -pthreads
4745     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4746         add_cflags -ldl -pthread
4747         add_extralibs -ldl -pthread
4748     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4749         add_extralibs -lpthreadGC2
4750     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4751         :
4752     elif ! check_func pthread_join && ! check_func pthread_create; then
4753         disable pthreads
4754     fi
4755     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4756 fi
4757
4758
4759 if enabled pthreads; then
4760   check_func pthread_cancel
4761 fi
4762
4763 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4764 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4765 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
4766
4767 check_lib math.h sin -lm && LIBM="-lm"
4768 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4769
4770 atan2f_args=2
4771 ldexpf_args=2
4772 powf_args=2
4773 fminf_args=2
4774
4775 for func in $MATH_FUNCS; do
4776     eval check_mathfunc $func \${${func}_args:-1}
4777 done
4778
4779 # these are off by default, so fail if requested and not available
4780 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4781 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4782                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4783                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4784 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4785 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4786 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4787 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4788 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4789 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4790 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4791 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4792 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4793 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4794                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4795                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4796 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4797 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4798 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4799 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"
4800 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4801 enabled fontconfig        && enable libfontconfig
4802 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4803 enabled libfreetype       && require_libfreetype
4804 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4805 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4806 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4807                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4808                                done || die "ERROR: libgsm not found"; }
4809 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4810 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4811 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4812 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4813 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4814 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4815 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4816 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4817                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4818                                die "ERROR: libopenjpeg not found"; }
4819 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4820 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4821 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4822 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4823 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4824 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4825 enabled libsmbclient      && { { check_pkg_config smbclient libsmbclient.h smbc_init &&
4826                                  require_pkg_config smbclient libsmbclient.h smbc_init; } ||
4827                                  require smbclient libsmbclient.h smbc_init -lsmbclient; }
4828 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4829 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4830 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4831 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4832     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4833     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4834 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4835 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4836                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4837                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4838 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4839 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4840 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4841 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4842 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4843 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4844 enabled libvpx            && {
4845     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4846                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4847     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 ||
4848                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4849     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4850     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; } }
4851 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4852 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion &&
4853                              { check_code cc webp/encode.h "WebPPicture wp; wp.use_argb++" ||
4854                                die "ERROR: libwebp too old."; }
4855 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4856                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4857                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4858 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4859                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4860                                die "ERROR: libx265 version must be >= 17."; }
4861 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4862 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4863 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4864 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4865 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4866                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4867                                die "ERROR: openal not found"; } &&
4868                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4869                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4870 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4871                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4872                                die "ERROR: opencl not found"; } &&
4873                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4874                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4875                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4876 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4877                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4878                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4879                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4880                                die "ERROR: opengl not found."
4881                              }
4882 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4883                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4884                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4885                                die "ERROR: openssl not found"; }
4886 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4887
4888 if enabled gnutls; then
4889     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4890     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4891 fi
4892
4893 # libdc1394 check
4894 if enabled libdc1394; then
4895     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4896         enable libdc1394_2; } ||
4897     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4898         enable libdc1394_1; } ||
4899     die "ERROR: No version of libdc1394 found "
4900 fi
4901
4902 SDL_CONFIG="${cross_prefix}sdl-config"
4903 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4904     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4905     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4906     enable sdl
4907 else
4908   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4909     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4910     sdl_libs=$("${SDL_CONFIG}" --libs)
4911     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4912     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4913     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4914     enable sdl
4915   fi
4916 fi
4917 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4918
4919 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4920 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4921 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4922 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4923 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4924
4925 check_header linux/fb.h
4926 check_header linux/videodev.h
4927 check_header linux/videodev2.h
4928 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4929
4930 check_header sys/videoio.h
4931
4932 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4933 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4934 # w32api 3.12 had it defined wrong
4935 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4936
4937 check_type "dshow.h" IBaseFilter
4938
4939 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4940 { check_header dev/bktr/ioctl_meteor.h &&
4941   check_header dev/bktr/ioctl_bt848.h; } ||
4942 { check_header machine/ioctl_meteor.h &&
4943   check_header machine/ioctl_bt848.h; } ||
4944 { check_header dev/video/meteor/ioctl_meteor.h &&
4945   check_header dev/video/bktr/ioctl_bt848.h; } ||
4946 check_header dev/ic/bt8xx.h
4947
4948 check_header sndio.h
4949 if check_struct sys/soundcard.h audio_buf_info bytes; then
4950     enable_safe sys/soundcard.h
4951 else
4952     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4953     #include <sys/soundcard.h>
4954     audio_buf_info abc;
4955 EOF
4956 fi
4957 check_header soundcard.h
4958
4959 enabled_any alsa_indev alsa_outdev &&
4960     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4961
4962 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4963     check_func jack_port_get_latency_range -ljack
4964
4965 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4966
4967 if enabled libcdio; then
4968     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4969     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4970     die "ERROR: libcdio-paranoia not found"
4971 fi
4972
4973 enabled xlib &&
4974     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4975
4976 enabled x11grab                                           &&
4977 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4978 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4979 { enabled xlib || die "ERROR: Xlib not found"; }
4980
4981 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
4982
4983 enabled dxva2api_h &&
4984     check_cc <<EOF && enable dxva2api_cobj
4985 #define _WIN32_WINNT 0x0600
4986 #define COBJMACROS
4987 #include <windows.h>
4988 #include <d3d9.h>
4989 #include <dxva2api.h>
4990 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
4991 EOF
4992
4993 enabled vaapi &&
4994     check_lib va/va.h vaInitialize -lva ||
4995     disable vaapi
4996
4997 enabled vdpau &&
4998     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4999     disable vdpau
5000
5001 enabled vdpau && enabled xlib &&
5002     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5003     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5004     enable vdpau_x11
5005
5006 # Funny iconv installations are not unusual, so check it after all flags have been set
5007 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5008
5009 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5010
5011 # add some useful compiler flags if supported
5012 check_cflags -Wdeclaration-after-statement
5013 check_cflags -Wall
5014 check_cflags -Wdisabled-optimization
5015 check_cflags -Wpointer-arith
5016 check_cflags -Wredundant-decls
5017 check_cflags -Wwrite-strings
5018 check_cflags -Wtype-limits
5019 check_cflags -Wundef
5020 check_cflags -Wmissing-prototypes
5021 check_cflags -Wno-pointer-to-int-cast
5022 check_cflags -Wstrict-prototypes
5023 check_cflags -Wempty-body
5024 enabled extra_warnings && check_cflags -Winline
5025
5026 check_disable_warning(){
5027     warning_flag=-W${1#-Wno-}
5028     test_cflags $warning_flag && add_cflags $1
5029 }
5030
5031 check_disable_warning -Wno-parentheses
5032 check_disable_warning -Wno-switch
5033 check_disable_warning -Wno-format-zero-length
5034 check_disable_warning -Wno-pointer-sign
5035
5036 # add some linker flags
5037 check_ldflags -Wl,--warn-common
5038 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5039 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5040 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5041
5042 # add some strip flags
5043 # -wN '..@*' is more selective than -x, but not available everywhere.
5044 check_stripflags -wN \'..@*\' || check_stripflags -x
5045
5046 enabled neon_clobber_test &&
5047     check_ldflags -Wl,--wrap,avcodec_open2              \
5048                   -Wl,--wrap,avcodec_decode_audio4      \
5049                   -Wl,--wrap,avcodec_decode_video2      \
5050                   -Wl,--wrap,avcodec_decode_subtitle2   \
5051                   -Wl,--wrap,avcodec_encode_audio2      \
5052                   -Wl,--wrap,avcodec_encode_video2      \
5053                   -Wl,--wrap,avcodec_encode_subtitle    \
5054                   -Wl,--wrap,swr_convert                \
5055                   -Wl,--wrap,avresample_convert ||
5056     disable neon_clobber_test
5057
5058 enabled xmm_clobber_test &&
5059     check_ldflags -Wl,--wrap,avcodec_open2              \
5060                   -Wl,--wrap,avcodec_decode_audio4      \
5061                   -Wl,--wrap,avcodec_decode_video2      \
5062                   -Wl,--wrap,avcodec_decode_subtitle2   \
5063                   -Wl,--wrap,avcodec_encode_audio2      \
5064                   -Wl,--wrap,avcodec_encode_video       \
5065                   -Wl,--wrap,avcodec_encode_video2      \
5066                   -Wl,--wrap,avcodec_encode_subtitle    \
5067                   -Wl,--wrap,swr_convert                \
5068                   -Wl,--wrap,avresample_convert         \
5069                   -Wl,--wrap,sws_scale ||
5070     disable xmm_clobber_test
5071
5072 echo "X{};" > $TMPV
5073 if test_ldflags -Wl,--version-script,$TMPV; then
5074     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5075     check_cc <<EOF && enable symver_asm_label
5076 void ff_foo(void) __asm__ ("av_foo@VERSION");
5077 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5078 EOF
5079     check_cc <<EOF && enable symver_gnu_asm
5080 __asm__(".symver ff_foo,av_foo@VERSION");
5081 void ff_foo(void) {}
5082 EOF
5083 fi
5084
5085 if [ -z "$optflags" ]; then
5086     if enabled small; then
5087         optflags=$cflags_size
5088     elif enabled optimizations; then
5089         optflags=$cflags_speed
5090     else
5091         optflags=$cflags_noopt
5092     fi
5093 fi
5094
5095 check_optflags(){
5096     check_cflags "$@"
5097     enabled lto && check_ldflags "$@"
5098 }
5099
5100
5101 if enabled lto; then
5102     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5103     check_cflags  -flto
5104     check_ldflags -flto $cpuflags
5105     disable inline_asm_direct_symbol_refs
5106 fi
5107
5108 check_optflags $optflags
5109 check_optflags -fno-math-errno
5110 check_optflags -fno-signed-zeros
5111
5112 enabled ftrapv && check_cflags -ftrapv
5113
5114 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5115 int x;
5116 EOF
5117
5118
5119 if enabled icc; then
5120     # Just warnings, no remarks
5121     check_cflags -w1
5122     # -wd: Disable following warnings
5123     # 144, 167, 556: -Wno-pointer-sign
5124     # 188: enumerated type mixed with another type
5125     # 1292: attribute "foo" ignored
5126     # 1419: external declaration in primary source file
5127     # 10006: ignoring unknown option -fno-signed-zeros
5128     # 10148: ignoring unknown option -Wno-parentheses
5129     # 10156: ignoring option '-W'; no argument required
5130     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5131     # 11030: Warning unknown option --as-needed
5132     # 10156: ignoring option '-export'; no argument required
5133     check_ldflags -wd10156,11030
5134     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5135     enable ebp_available
5136     # The test above does not test linking
5137     enabled lto && disable symver_asm_label
5138     if enabled x86_32; then
5139         icc_version=$($cc -dumpversion)
5140         test ${icc_version%%.*} -ge 11 &&
5141             check_cflags -falign-stack=maintain-16-byte ||
5142             disable aligned_stack
5143     fi
5144 elif enabled ccc; then
5145     # disable some annoying warnings
5146     add_cflags -msg_disable bitnotint
5147     add_cflags -msg_disable mixfuncvoid
5148     add_cflags -msg_disable nonstandcast
5149     add_cflags -msg_disable unsupieee
5150 elif enabled gcc; then
5151     check_optflags -fno-tree-vectorize
5152     check_cflags -Werror=format-security
5153     check_cflags -Werror=implicit-function-declaration
5154     check_cflags -Werror=missing-prototypes
5155     check_cflags -Werror=return-type
5156     check_cflags -Werror=vla
5157     check_cflags -Wformat
5158     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5159 elif enabled llvm_gcc; then
5160     check_cflags -mllvm -stack-alignment=16
5161 elif enabled clang; then
5162     check_cflags -mllvm -stack-alignment=16
5163     check_cflags -Qunused-arguments
5164     check_cflags -Werror=implicit-function-declaration
5165     check_cflags -Werror=missing-prototypes
5166     check_cflags -Werror=return-type
5167 elif enabled cparser; then
5168     add_cflags -Wno-missing-variable-declarations
5169     add_cflags -Wno-empty-statement
5170 elif enabled armcc; then
5171     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5172     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5173     # 2523: use of inline assembly is deprecated
5174     add_cflags -W${armcc_opt},--diag_suppress=2523
5175     add_cflags -W${armcc_opt},--diag_suppress=1207
5176     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5177     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5178     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5179     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5180 elif enabled tms470; then
5181     add_cflags -pds=824 -pds=837
5182     disable inline_asm
5183 elif enabled pathscale; then
5184     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5185 elif enabled_any msvc icl; then
5186     enabled x86_32 && disable aligned_stack
5187     enabled_all x86_32 debug && add_cflags -Oy-
5188     enabled debug && add_ldflags -debug
5189     enable pragma_deprecated
5190     if enabled icl; then
5191         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5192         # (correctly) on icl 13.x.
5193         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5194             add_cflags -Qansi-alias
5195         # Some inline asm is not compilable in debug
5196         if enabled debug; then
5197             disable ebp_available
5198             disable ebx_available
5199         fi
5200     fi
5201     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5202     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5203 fi
5204
5205 case $as_type in
5206     clang)
5207         add_asflags -Qunused-arguments
5208     ;;
5209 esac
5210
5211 case $ld_type in
5212     clang)
5213         check_ldflags -Qunused-arguments
5214     ;;
5215 esac
5216
5217 case $target_os in
5218     osf1)
5219         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5220     ;;
5221     plan9)
5222         add_cppflags -Dmain=plan9_main
5223     ;;
5224 esac
5225
5226 enable frame_thread_encoder
5227
5228 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5229
5230 check_deps $CONFIG_LIST       \
5231            $CONFIG_EXTRA      \
5232            $HAVE_LIST         \
5233            $ALL_COMPONENTS    \
5234
5235 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"
5236
5237
5238 if test $target_os = "haiku"; then
5239     disable memalign
5240     disable posix_memalign
5241 fi
5242
5243 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5244     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5245     enable dxva2_lib
5246
5247 ! enabled_any memalign posix_memalign aligned_malloc &&
5248     enabled simd_align_16 && enable memalign_hack
5249
5250 # add_dep lib dep
5251 # -> enable ${lib}_deps_${dep}
5252 # -> add $dep to ${lib}_deps only once
5253 add_dep() {
5254     lib=$1
5255     dep=$2
5256     enabled "${lib}_deps_${dep}" && return 0
5257     enable  "${lib}_deps_${dep}"
5258     prepend "${lib}_deps" $dep
5259 }
5260
5261 # merge deps lib components
5262 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5263 merge_deps() {
5264     lib=$1
5265     shift
5266     for comp in $*; do
5267         enabled $comp || continue
5268         eval "dep=\"\$${comp}_deps\""
5269         for d in $dep; do
5270             add_dep $lib $d
5271         done
5272     done
5273 }
5274
5275 merge_deps libavfilter $FILTER_LIST
5276
5277 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5278
5279 for thread in $THREADS_LIST; do
5280     if enabled $thread; then
5281         test -n "$thread_type" &&
5282             die "ERROR: Only one thread type must be selected." ||
5283             thread_type="$thread"
5284     fi
5285 done
5286
5287 enabled zlib && add_cppflags -DZLIB_CONST
5288
5289 # conditional library dependencies, in linking order
5290 enabled aconvert_filter     && prepend avfilter_deps "swresample"
5291 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5292 enabled aresample_filter    && prepend avfilter_deps "swresample"
5293 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5294 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5295 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5296 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5297 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5298 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5299 enabled mp_filter           && prepend avfilter_deps "avcodec"
5300 enabled pan_filter          && prepend avfilter_deps "swresample"
5301 enabled pp_filter           && prepend avfilter_deps "postproc"
5302 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5303 enabled resample_filter && prepend avfilter_deps "avresample"
5304 enabled sab_filter          && prepend avfilter_deps "swscale"
5305 enabled scale_filter    && prepend avfilter_deps "swscale"
5306 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5307 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5308 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5309
5310 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5311
5312 enabled opus_decoder    && prepend avcodec_deps "swresample"
5313
5314 expand_deps(){
5315     lib_deps=${1}_deps
5316     eval "deps=\$$lib_deps"
5317     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5318     unique $lib_deps
5319 }
5320
5321 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5322 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5323
5324 map 'expand_deps $v' $LIBRARY_LIST
5325
5326 echo "install prefix            $prefix"
5327 echo "source path               $source_path"
5328 echo "C compiler                $cc"
5329 echo "C library                 $libc_type"
5330 if test "$host_cc" != "$cc"; then
5331     echo "host C compiler           $host_cc"
5332     echo "host C library            $host_libc_type"
5333 fi
5334 echo "ARCH                      $arch ($cpu)"
5335 if test "$build_suffix" != ""; then
5336     echo "build suffix              $build_suffix"
5337 fi
5338 if test "$progs_suffix" != ""; then
5339     echo "progs suffix              $progs_suffix"
5340 fi
5341 if test "$extra_version" != ""; then
5342     echo "version string suffix     $extra_version"
5343 fi
5344 echo "big-endian                ${bigendian-no}"
5345 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5346 if enabled x86; then
5347     echo "${yasmexe}                      ${yasm-no}"
5348     echo "MMX enabled               ${mmx-no}"
5349     echo "MMXEXT enabled            ${mmxext-no}"
5350     echo "3DNow! enabled            ${amd3dnow-no}"
5351     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5352     echo "SSE enabled               ${sse-no}"
5353     echo "SSSE3 enabled             ${ssse3-no}"
5354     echo "AVX enabled               ${avx-no}"
5355     echo "XOP enabled               ${xop-no}"
5356     echo "FMA3 enabled              ${fma3-no}"
5357     echo "FMA4 enabled              ${fma4-no}"
5358     echo "i686 features enabled     ${i686-no}"
5359     echo "CMOV is fast              ${fast_cmov-no}"
5360     echo "EBX available             ${ebx_available-no}"
5361     echo "EBP available             ${ebp_available-no}"
5362 fi
5363 if enabled aarch64; then
5364     echo "NEON enabled              ${neon-no}"
5365     echo "VFP enabled               ${vfp-no}"
5366 fi
5367 if enabled arm; then
5368     echo "ARMv5TE enabled           ${armv5te-no}"
5369     echo "ARMv6 enabled             ${armv6-no}"
5370     echo "ARMv6T2 enabled           ${armv6t2-no}"
5371     echo "VFP enabled               ${vfp-no}"
5372     echo "NEON enabled              ${neon-no}"
5373     echo "THUMB enabled             ${thumb-no}"
5374 fi
5375 if enabled mips; then
5376     echo "MIPS FPU enabled          ${mipsfpu-no}"
5377     echo "MIPS32R2 enabled          ${mips32r2-no}"
5378     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5379     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5380 fi
5381 if enabled ppc; then
5382     echo "AltiVec enabled           ${altivec-no}"
5383     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5384     echo "PPC VSX optimizations     ${vsx-no}"
5385     echo "dcbzl available           ${dcbzl-no}"
5386 fi
5387 echo "debug symbols             ${debug-no}"
5388 echo "strip symbols             ${stripping-no}"
5389 echo "optimize for size         ${small-no}"
5390 echo "optimizations             ${optimizations-no}"
5391 echo "static                    ${static-no}"
5392 echo "shared                    ${shared-no}"
5393 echo "postprocessing support    ${postproc-no}"
5394 echo "new filter support        ${avfilter-no}"
5395 echo "network support           ${network-no}"
5396 echo "threading support         ${thread_type-no}"
5397 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5398 echo "SDL support               ${sdl-no}"
5399 echo "opencl enabled            ${opencl-no}"
5400 echo "texi2html enabled         ${texi2html-no}"
5401 echo "perl enabled              ${perl-no}"
5402 echo "pod2man enabled           ${pod2man-no}"
5403 echo "makeinfo enabled          ${makeinfo-no}"
5404 test -n "$random_seed" &&
5405     echo "random seed               ${random_seed}"
5406 echo
5407
5408 echo "External libraries:"
5409 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5410 echo
5411
5412 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5413     echo "Enabled ${type}s:"
5414     eval list=\$$(toupper $type)_LIST
5415     print_enabled '_*' $list | print_3_columns
5416     echo
5417 done
5418
5419 license="LGPL version 2.1 or later"
5420 if enabled nonfree; then
5421     license="nonfree and unredistributable"
5422 elif enabled gplv3; then
5423     license="GPL version 3 or later"
5424 elif enabled lgplv3; then
5425     license="LGPL version 3 or later"
5426 elif enabled gpl; then
5427     license="GPL version 2 or later"
5428 fi
5429
5430 echo "License: $license"
5431
5432 echo "Creating config.mak, config.h, and doc/config.texi..."
5433
5434 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5435
5436 enabled stripping || strip="echo skipping strip"
5437
5438 config_files="$TMPH config.mak doc/config.texi"
5439
5440 cat > config.mak <<EOF
5441 # Automatically generated by configure - do not modify!
5442 ifndef FFMPEG_CONFIG_MAK
5443 FFMPEG_CONFIG_MAK=1
5444 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5445 prefix=$prefix
5446 LIBDIR=\$(DESTDIR)$libdir
5447 SHLIBDIR=\$(DESTDIR)$shlibdir
5448 INCDIR=\$(DESTDIR)$incdir
5449 BINDIR=\$(DESTDIR)$bindir
5450 DATADIR=\$(DESTDIR)$datadir
5451 DOCDIR=\$(DESTDIR)$docdir
5452 MANDIR=\$(DESTDIR)$mandir
5453 SRC_PATH=$source_path
5454 ifndef MAIN_MAKEFILE
5455 SRC_PATH:=\$(SRC_PATH:.%=..%)
5456 endif
5457 CC_IDENT=$cc_ident
5458 ARCH=$arch
5459 INTRINSICS=$intrinsics
5460 CC=$cc
5461 CXX=$cxx
5462 AS=$as
5463 LD=$ld
5464 DEPCC=$dep_cc
5465 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5466 DEPAS=$as
5467 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5468 YASM=$yasmexe
5469 DEPYASM=$yasmexe
5470 AR=$ar
5471 ARFLAGS=$arflags
5472 AR_O=$ar_o
5473 RANLIB=$ranlib
5474 STRIP=$strip
5475 CP=cp -p
5476 LN_S=$ln_s
5477 CPPFLAGS=$CPPFLAGS
5478 CFLAGS=$CFLAGS
5479 CXXFLAGS=$CXXFLAGS
5480 ASFLAGS=$ASFLAGS
5481 AS_C=$AS_C
5482 AS_O=$AS_O
5483 CC_C=$CC_C
5484 CC_E=$CC_E
5485 CC_O=$CC_O
5486 CXX_C=$CXX_C
5487 CXX_O=$CXX_O
5488 LD_O=$LD_O
5489 LD_LIB=$LD_LIB
5490 LD_PATH=$LD_PATH
5491 DLLTOOL=$dlltool
5492 WINDRES=$windres
5493 DEPWINDRES=$dep_cc
5494 DOXYGEN=$doxygen
5495 LDFLAGS=$LDFLAGS
5496 LDEXEFLAGS=$LDEXEFLAGS
5497 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5498 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5499 YASMFLAGS=$YASMFLAGS
5500 BUILDSUF=$build_suffix
5501 PROGSSUF=$progs_suffix
5502 FULLNAME=$FULLNAME
5503 LIBPREF=$LIBPREF
5504 LIBSUF=$LIBSUF
5505 LIBNAME=$LIBNAME
5506 SLIBPREF=$SLIBPREF
5507 SLIBSUF=$SLIBSUF
5508 EXESUF=$EXESUF
5509 EXTRA_VERSION=$extra_version
5510 CCDEP=$CCDEP
5511 CXXDEP=$CXXDEP
5512 CCDEP_FLAGS=$CCDEP_FLAGS
5513 ASDEP=$ASDEP
5514 ASDEP_FLAGS=$ASDEP_FLAGS
5515 CC_DEPFLAGS=$CC_DEPFLAGS
5516 AS_DEPFLAGS=$AS_DEPFLAGS
5517 HOSTCC=$host_cc
5518 HOSTLD=$host_ld
5519 HOSTCFLAGS=$host_cflags
5520 HOSTCPPFLAGS=$host_cppflags
5521 HOSTEXESUF=$HOSTEXESUF
5522 HOSTLDFLAGS=$host_ldflags
5523 HOSTLIBS=$host_libs
5524 DEPHOSTCC=$host_cc
5525 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5526 HOSTCCDEP=$HOSTCCDEP
5527 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5528 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5529 HOSTCC_C=$HOSTCC_C
5530 HOSTCC_O=$HOSTCC_O
5531 HOSTLD_O=$HOSTLD_O
5532 TARGET_EXEC=$target_exec $target_exec_args
5533 TARGET_PATH=$target_path
5534 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5535 CFLAGS-ffplay=$sdl_cflags
5536 ZLIB=$($ldflags_filter -lz)
5537 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5538 EXTRALIBS=$extralibs
5539 COMPAT_OBJS=$compat_objs
5540 EXEOBJS=$exeobjs
5541 INSTALL=$install
5542 LIBTARGET=${LIBTARGET}
5543 SLIBNAME=${SLIBNAME}
5544 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5545 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5546 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5547 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5548 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5549 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5550 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5551 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5552 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5553 NOREDZONE_FLAGS=$noredzone_flags
5554 EOF
5555
5556 get_version(){
5557     lcname=lib${1}
5558     name=$(toupper $lcname)
5559     file=$source_path/$lcname/version.h
5560     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5561     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5562     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5563     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5564     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5565     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5566 }
5567
5568 map 'get_version $v' $LIBRARY_LIST
5569
5570 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5571
5572 print_program_libs(){
5573     eval "program_libs=\$${1}_libs"
5574     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5575 }
5576
5577 map 'print_program_libs $v' $PROGRAM_LIST
5578
5579 cat > $TMPH <<EOF
5580 /* Automatically generated by configure - do not modify! */
5581 #ifndef FFMPEG_CONFIG_H
5582 #define FFMPEG_CONFIG_H
5583 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5584 #define FFMPEG_LICENSE "$(c_escape $license)"
5585 #define CONFIG_THIS_YEAR 2014
5586 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5587 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5588 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5589 #define av_restrict $_restrict
5590 #define EXTERN_PREFIX "${extern_prefix}"
5591 #define EXTERN_ASM ${extern_prefix}
5592 #define BUILDSUF "$build_suffix"
5593 #define SLIBSUF "$SLIBSUF"
5594 #define HAVE_MMX2 HAVE_MMXEXT
5595 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5596 EOF
5597
5598 test -n "$assert_level" &&
5599     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5600
5601 test -n "$malloc_prefix" &&
5602     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5603
5604 if enabled yasm; then
5605     append config_files $TMPASM
5606     printf '' >$TMPASM
5607 fi
5608
5609 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5610
5611
5612 mkdir -p doc
5613 echo "@c auto-generated by configure" > doc/config.texi
5614
5615 print_config ARCH_   "$config_files" $ARCH_LIST
5616 print_config HAVE_   "$config_files" $HAVE_LIST
5617 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5618                                      $CONFIG_EXTRA      \
5619                                      $ALL_COMPONENTS    \
5620
5621 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5622 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5623
5624 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5625 cp_if_changed $TMPH config.h
5626 touch .config
5627
5628 enabled yasm && cp_if_changed $TMPASM config.asm
5629
5630 cat > $TMPH <<EOF
5631 /* Generated by ffconf */
5632 #ifndef AVUTIL_AVCONFIG_H
5633 #define AVUTIL_AVCONFIG_H
5634 EOF
5635
5636 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5637
5638 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5639
5640 cp_if_changed $TMPH libavutil/avconfig.h
5641
5642 if test -n "$WARNINGS"; then
5643     printf "\n$WARNINGS"
5644     enabled fatal_warnings && exit 1
5645 fi
5646
5647 # build pkg-config files
5648
5649 lib_version(){
5650     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5651 }
5652
5653 pkgconfig_generate(){
5654     name=$1
5655     shortname=${name#lib}${build_suffix}
5656     comment=$2
5657     version=$3
5658     libs=$4
5659     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5660     requires=${requires%, }
5661     enabled ${name#lib} || return 0
5662     mkdir -p $name
5663     cat <<EOF > $name/$name${build_suffix}.pc
5664 prefix=$prefix
5665 exec_prefix=\${prefix}
5666 libdir=$libdir
5667 includedir=$incdir
5668
5669 Name: $name
5670 Description: $comment
5671 Version: $version
5672 Requires: $(enabled shared || echo $requires)
5673 Requires.private: $(enabled shared && echo $requires)
5674 Conflicts:
5675 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5676 Libs.private: $(enabled shared && echo $libs)
5677 Cflags: -I\${includedir}
5678 EOF
5679
5680 mkdir -p doc/examples/pc-uninstalled
5681 includedir=${source_path}
5682 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5683     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5684 prefix=
5685 exec_prefix=
5686 libdir=\${pcfiledir}/../../../$name
5687 includedir=${includedir}
5688
5689 Name: $name
5690 Description: $comment
5691 Version: $version
5692 Requires: $requires
5693 Conflicts:
5694 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5695 Cflags: -I\${includedir}
5696 EOF
5697 }
5698
5699 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5700 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5701 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5702 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5703 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5704 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5705 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
5706 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5707 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"