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
  93 Licensing options:
  94   --enable-gpl             allow use of GPL code, the resulting libs
  95                            and binaries will be under GPL [no]
  96   --enable-version3        upgrade (L)GPL to version 3 [no]
  97   --enable-nonfree         allow use of nonfree code, the resulting libs
  98                            and binaries will be unredistributable [no]
  99
 100 Configuration options:
 101   --disable-static         do not build static libraries [no]
 102   --enable-shared          build shared libraries [no]
 103   --enable-small           optimize for size instead of speed
 104   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 105   --enable-gray            enable full grayscale support (slower color)
 106   --disable-swscale-alpha  disable alpha channel support in swscale
 107   --disable-all            disable building components, libraries and programs
 108   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 109   --enable-raise-major     increase major version numbers in sonames [no]
 110
 111 Program options:
 112   --disable-programs       do not build command line programs
 113   --disable-ffmpeg         disable ffmpeg build
 114   --disable-ffplay         disable ffplay build
 115   --disable-ffprobe        disable ffprobe build
 116   --disable-ffserver       disable ffserver build
 117
 118 Documentation options:
 119   --disable-doc            do not build documentation
 120   --disable-htmlpages      do not build HTML documentation pages
 121   --disable-manpages       do not build man documentation pages
 122   --disable-podpages       do not build POD documentation pages
 123   --disable-txtpages       do not build text documentation pages
 124
 125 Component options:
 126   --disable-avdevice       disable libavdevice build
 127   --disable-avcodec        disable libavcodec build
 128   --disable-avformat       disable libavformat build
 129   --disable-avutil         disable libavutil build
 130   --disable-swresample     disable libswresample build
 131   --disable-swscale        disable libswscale build
 132   --disable-postproc       disable libpostproc build
 133   --disable-avfilter       disable libavfilter build
 134   --enable-avresample      enable libavresample build [no]
 135   --disable-pthreads       disable pthreads [auto]
 136   --disable-w32threads     disable Win32 threads [auto]
 137   --disable-os2threads     disable OS/2 threads [auto]
 138   --disable-network        disable network support [no]
 139   --disable-dct            disable DCT code
 140   --disable-dwt            disable DWT code
 141   --disable-error-resilience disable error resilience code
 142   --disable-lsp            disable LSP code
 143   --disable-lzo            disable LZO decoder code
 144   --disable-mdct           disable MDCT code
 145   --disable-rdft           disable RDFT code
 146   --disable-fft            disable FFT code
 147
 148 Hardware accelerators:
 149   --disable-dxva2          disable DXVA2 code [autodetect]
 150   --disable-vaapi          disable VAAPI code [autodetect]
 151   --disable-vda            disable VDA code [autodetect]
 152   --disable-vdpau          disable VDPAU code [autodetect]
 153
 154 Individual component options:
 155   --disable-everything     disable all components listed below
 156   --disable-encoder=NAME   disable encoder NAME
 157   --enable-encoder=NAME    enable encoder NAME
 158   --disable-encoders       disable all encoders
 159   --disable-decoder=NAME   disable decoder NAME
 160   --enable-decoder=NAME    enable decoder NAME
 161   --disable-decoders       disable all decoders
 162   --disable-hwaccel=NAME   disable hwaccel NAME
 163   --enable-hwaccel=NAME    enable hwaccel NAME
 164   --disable-hwaccels       disable all hwaccels
 165   --disable-muxer=NAME     disable muxer NAME
 166   --enable-muxer=NAME      enable muxer NAME
 167   --disable-muxers         disable all muxers
 168   --disable-demuxer=NAME   disable demuxer NAME
 169   --enable-demuxer=NAME    enable demuxer NAME
 170   --disable-demuxers       disable all demuxers
 171   --enable-parser=NAME     enable parser NAME
 172   --disable-parser=NAME    disable parser NAME
 173   --disable-parsers        disable all parsers
 174   --enable-bsf=NAME        enable bitstream filter NAME
 175   --disable-bsf=NAME       disable bitstream filter NAME
 176   --disable-bsfs           disable all bitstream filters
 177   --enable-protocol=NAME   enable protocol NAME
 178   --disable-protocol=NAME  disable protocol NAME
 179   --disable-protocols      disable all protocols
 180   --enable-indev=NAME      enable input device NAME
 181   --disable-indev=NAME     disable input device NAME
 182   --disable-indevs         disable input devices
 183   --enable-outdev=NAME     enable output device NAME
 184   --disable-outdev=NAME    disable output device NAME
 185   --disable-outdevs        disable output devices
 186   --disable-devices        disable all devices
 187   --enable-filter=NAME     enable filter NAME
 188   --disable-filter=NAME    disable filter NAME
 189   --disable-filters        disable all filters
 190
 191 External library support:
 192   --enable-avisynth        enable reading of AviSynth script files [no]
 193   --disable-bzlib          disable bzlib [autodetect]
 194   --enable-fontconfig      enable fontconfig
 195   --enable-frei0r          enable frei0r video filtering
 196   --enable-gnutls          enable gnutls [no]
 197   --disable-iconv          disable iconv [autodetect]
 198   --enable-ladspa          enable LADSPA audio filtering
 199   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 200   --enable-libass          enable libass subtitles rendering [no]
 201   --enable-libbluray       enable BluRay reading using libbluray [no]
 202   --enable-libbs2b         enable bs2b DSP library [no]
 203   --enable-libcaca         enable textual display using libcaca
 204   --enable-libcelt         enable CELT decoding via libcelt [no]
 205   --enable-libcdio         enable audio CD grabbing with libcdio
 206   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 207                            and libraw1394 [no]
 208   --enable-libfaac         enable AAC encoding via libfaac [no]
 209   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 210   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 211   --enable-libfreetype     enable libfreetype [no]
 212   --enable-libfribidi      enable libfribidi [no]
 213   --enable-libgme          enable Game Music Emu via libgme [no]
 214   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 215   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 216   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 217   --enable-libmodplug      enable ModPlug via libmodplug [no]
 218   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 219   --enable-libnut          enable NUT (de)muxing via libnut,
 220                            native (de)muxer exists [no]
 221   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 222   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 223   --enable-libopencv       enable video filtering via libopencv [no]
 224   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 225   --enable-libopus         enable Opus de/encoding via libopus [no]
 226   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 227   --enable-libquvi         enable quvi input via libquvi [no]
 228   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 229   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 230   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 231   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
 232   --enable-libsoxr         enable Include libsoxr resampling [no]
 233   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 234   --enable-libssh          enable SFTP protocol via libssh [no]
 235   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 236   --enable-libtheora       enable Theora encoding via libtheora [no]
 237   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 238   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 239   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 240   --enable-libvidstab      enable video stabilization using vid.stab [no]
 241   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 242   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 243   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 244                            native implementation exists [no]
 245   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 246   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 247   --enable-libwebp         enable WebP encoding via libwebp [no]
 248   --enable-libx264         enable H.264 encoding via x264 [no]
 249   --enable-libx265         enable HEVC encoding via x265 [no]
 250   --enable-libxavs         enable AVS encoding via xavs [no]
 251   --enable-libxvid         enable Xvid encoding via xvidcore,
 252                            native MPEG-4/Xvid encoder exists [no]
 253   --enable-libzmq          enable message passing via libzmq [no]
 254   --enable-libzvbi         enable teletext support via libzvbi [no]
 255   --enable-decklink        enable Blackmagick DeckLink output [no]
 256   --enable-openal          enable OpenAL 1.1 capture support [no]
 257   --enable-opencl          enable OpenCL code
 258   --enable-opengl          enable OpenGL rendering [no]
 259   --enable-openssl         enable openssl [no]
 260   --enable-x11grab         enable X11 grabbing [no]
 261   --disable-xlib           disable xlib [autodetect]
 262   --disable-zlib           disable zlib [autodetect]
 263
 264 Toolchain options:
 265   --arch=ARCH              select architecture [$arch]
 266   --cpu=CPU                select the minimum required CPU (affects
 267                            instruction selection, may crash on older CPUs)
 268   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 269   --progs-suffix=SUFFIX    program name suffix []
 270   --enable-cross-compile   assume a cross-compiler is used
 271   --sysroot=PATH           root of cross-build tree
 272   --sysinclude=PATH        location of cross-build system headers
 273   --target-os=OS           compiler targets OS [$target_os]
 274   --target-exec=CMD        command to run executables on target
 275   --target-path=DIR        path to view of build directory on target
 276   --target-samples=DIR     path to samples directory on target
 277   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 278   --toolchain=NAME         set tool defaults according to NAME
 279   --nm=NM                  use nm tool NM [$nm_default]
 280   --ar=AR                  use archive tool AR [$ar_default]
 281   --as=AS                  use assembler AS [$as_default]
 282   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 283   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 284   --cc=CC                  use C compiler CC [$cc_default]
 285   --cxx=CXX                use C compiler CXX [$cxx_default]
 286   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 287   --ld=LD                  use linker LD [$ld_default]
 288   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 289   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 290   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 291   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
 292   --host-cc=HOSTCC         use host C compiler HOSTCC
 293   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 294   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 295   --host-ld=HOSTLD         use host linker HOSTLD
 296   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 297   --host-libs=HLIBS        use libs HLIBS when linking for host
 298   --host-os=OS             compiler host OS [$target_os]
 299   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 300   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 301   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 302   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 303   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 304   --extra-version=STRING   version string suffix []
 305   --optflags=OPTFLAGS      override optimization-related compiler flags
 306   --build-suffix=SUFFIX    library name suffix []
 307   --enable-pic             build position-independent code
 308   --enable-thumb           compile for Thumb instruction set
 309   --enable-lto             use link-time optimization
 310
 311 Advanced options (experts only):
 312   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 313   --disable-symver         disable symbol versioning
 314   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 315   --disable-safe-bitstream-reader
 316                            disable buffer boundary checking in bitreaders
 317                            (faster, but may crash)
 318   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 319   --enable-sram            allow use of on-chip SRAM
 320   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
 321
 322 Optimization options (experts only):
 323   --disable-asm            disable all assembly optimizations
 324   --disable-altivec        disable AltiVec optimizations
 325   --disable-amd3dnow       disable 3DNow! optimizations
 326   --disable-amd3dnowext    disable 3DNow! extended optimizations
 327   --disable-mmx            disable MMX optimizations
 328   --disable-mmxext         disable MMXEXT optimizations
 329   --disable-sse            disable SSE optimizations
 330   --disable-sse2           disable SSE2 optimizations
 331   --disable-sse3           disable SSE3 optimizations
 332   --disable-ssse3          disable SSSE3 optimizations
 333   --disable-sse4           disable SSE4 optimizations
 334   --disable-sse42          disable SSE4.2 optimizations
 335   --disable-avx            disable AVX optimizations
 336   --disable-xop            disable XOP optimizations
 337   --disable-fma3           disable FMA3 optimizations
 338   --disable-fma4           disable FMA4 optimizations
 339   --disable-avx2           disable AVX2 optimizations
 340   --disable-armv5te        disable armv5te optimizations
 341   --disable-armv6          disable armv6 optimizations
 342   --disable-armv6t2        disable armv6t2 optimizations
 343   --disable-vfp            disable VFP optimizations
 344   --disable-neon           disable NEON optimizations
 345   --disable-inline-asm     disable use of inline assembly
 346   --disable-yasm           disable use of nasm/yasm assembly
 347   --disable-mips32r2       disable MIPS32R2 optimizations
 348   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 349   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 350   --disable-mipsfpu        disable floating point MIPS optimizations
 351   --disable-fast-unaligned consider unaligned accesses slow
 352
 353 Developer options (useful when working on FFmpeg itself):
 354   --disable-debug          disable debugging symbols
 355   --enable-debug=LEVEL     set the debug level [$debuglevel]
 356   --disable-optimizations  disable compiler optimizations
 357   --enable-extra-warnings  enable more compiler warnings
 358   --disable-stripping      disable stripping of executables and shared libraries
 359   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 360                            2 causes a slowdown at runtime.
 361   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 362   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 363                            leaks and errors, using the specified valgrind binary.
 364                            Cannot be combined with --target-exec
 365   --enable-ftrapv          Trap arithmetic overflows
 366   --samples=PATH           location of test samples for FATE, if not set use
 367                            \$FATE_SAMPLES at make invocation time.
 368   --enable-neon-clobber-test check NEON registers for clobbering (should be
 369                            used only for debugging purposes)
 370   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 371                            should be used only for debugging purposes)
 372   --enable-random          randomly enable/disable components
 373   --disable-random
 374   --enable-random=LIST     randomly enable/disable specific components or
 375   --disable-random=LIST    component groups. LIST is a comma-separated list
 376                            of NAME[:PROB] entries where NAME is a component
 377                            (group) and PROB the probability associated with
 378                            NAME (default 0.5).
 379   --random-seed=VALUE      seed value for --enable/disable-random
 380
 381 NOTE: Object files are built at the place where configure is launched.
 382 EOF
 383   exit 0
 384 }
 385
 386 quotes='""'
 387
 388 log(){
 389     echo "$@" >> $logfile
 390 }
 391
 392 log_file(){
 393     log BEGIN $1
 394     pr -n -t $1 >> $logfile
 395     log END $1
 396 }
 397
 398 echolog(){
 399     log "$@"
 400     echo "$@"
 401 }
 402
 403 warn(){
 404     log "WARNING: $*"
 405     WARNINGS="${WARNINGS}WARNING: $*\n"
 406 }
 407
 408 die(){
 409     echolog "$@"
 410     cat <<EOF
 411
 412 If you think configure made a mistake, make sure you are using the latest
 413 version from Git.  If the latest version fails, report the problem to the
 414 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 415 EOF
 416     if disabled logging; then
 417         cat <<EOF
 418 Rerun configure with logging enabled (do not use --disable-logging), and
 419 include the log this produces with your report.
 420 EOF
 421     else
 422         cat <<EOF
 423 Include the log file "$logfile" produced by configure as this will help
 424 solve the problem.
 425 EOF
 426     fi
 427     exit 1
 428 }
 429
 430 # Avoid locale weirdness, besides we really just want to translate ASCII.
 431 toupper(){
 432     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 433 }
 434
 435 tolower(){
 436     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 437 }
 438
 439 c_escape(){
 440     echo "$*" | sed 's/["\\]/\\\0/g'
 441 }
 442
 443 sh_quote(){
 444     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 445     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 446     echo "$v"
 447 }
 448
 449 cleanws(){
 450     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
 451 }
 452
 453 filter(){
 454     pat=$1
 455     shift
 456     for v; do
 457         eval "case $v in $pat) echo $v ;; esac"
 458     done
 459 }
 460
 461 filter_out(){
 462     pat=$1
 463     shift
 464     for v; do
 465         eval "case $v in $pat) ;; *) echo $v ;; esac"
 466     done
 467 }
 468
 469 map(){
 470     m=$1
 471     shift
 472     for v; do eval $m; done
 473 }
 474
 475 add_suffix(){
 476     suffix=$1
 477     shift
 478     for v; do echo ${v}${suffix}; done
 479 }
 480
 481 set_all(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         eval $var=$value
 486     done
 487 }
 488
 489 set_weak(){
 490     value=$1
 491     shift
 492     for var; do
 493         eval : \${$var:=$value}
 494     done
 495 }
 496
 497 sanitize_var_name(){
 498     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 499 }
 500
 501 set_safe(){
 502     var=$1
 503     shift
 504     eval $(sanitize_var_name "$var")='$*'
 505 }
 506
 507 get_safe(){
 508     eval echo \$$(sanitize_var_name "$1")
 509 }
 510
 511 pushvar(){
 512     for pvar in $*; do
 513         eval level=\${${pvar}_level:=0}
 514         eval ${pvar}_${level}="\$$pvar"
 515         eval ${pvar}_level=$(($level+1))
 516     done
 517 }
 518
 519 popvar(){
 520     for pvar in $*; do
 521         eval level=\${${pvar}_level:-0}
 522         test $level = 0 && continue
 523         eval level=$(($level-1))
 524         eval $pvar="\${${pvar}_${level}}"
 525         eval ${pvar}_level=$level
 526         eval unset ${pvar}_${level}
 527     done
 528 }
 529
 530 enable(){
 531     set_all yes $*
 532 }
 533
 534 disable(){
 535     set_all no $*
 536 }
 537
 538 enable_weak(){
 539     set_weak yes $*
 540 }
 541
 542 disable_weak(){
 543     set_weak no $*
 544 }
 545
 546 enable_safe(){
 547     for var; do
 548         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 549     done
 550 }
 551
 552 disable_safe(){
 553     for var; do
 554         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 555     done
 556 }
 557
 558 do_enable_deep(){
 559     for var; do
 560         enabled $var && continue
 561         eval sel="\$${var}_select"
 562         eval sgs="\$${var}_suggest"
 563         pushvar var sgs
 564         enable_deep $sel
 565         popvar sgs
 566         enable_deep_weak $sgs
 567         popvar var
 568     done
 569 }
 570
 571 enable_deep(){
 572     do_enable_deep $*
 573     enable $*
 574 }
 575
 576 enable_deep_weak(){
 577     for var; do
 578         disabled $var && continue
 579         pushvar var
 580         do_enable_deep $var
 581         popvar var
 582         enable_weak $var
 583     done
 584 }
 585
 586 enabled(){
 587     test "${1#!}" = "$1" && op== || op=!=
 588     eval test "x\$${1#!}" $op "xyes"
 589 }
 590
 591 disabled(){
 592     test "${1#!}" = "$1" && op== || op=!=
 593     eval test "x\$${1#!}" $op "xno"
 594 }
 595
 596 enabled_all(){
 597     for opt; do
 598         enabled $opt || return 1
 599     done
 600 }
 601
 602 disabled_all(){
 603     for opt; do
 604         disabled $opt || return 1
 605     done
 606 }
 607
 608 enabled_any(){
 609     for opt; do
 610         enabled $opt && return 0
 611     done
 612 }
 613
 614 disabled_any(){
 615     for opt; do
 616         disabled $opt && return 0
 617     done
 618     return 1
 619 }
 620
 621 set_default(){
 622     for opt; do
 623         eval : \${$opt:=\$${opt}_default}
 624     done
 625 }
 626
 627 is_in(){
 628     value=$1
 629     shift
 630     for var in $*; do
 631         [ $var = $value ] && return 0
 632     done
 633     return 1
 634 }
 635
 636 do_check_deps(){
 637     for cfg; do
 638         cfg="${cfg#!}"
 639         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 640         disabled ${cfg}_checking && continue
 641         enable ${cfg}_checking
 642         append allopts $cfg
 643
 644         eval dep_all="\$${cfg}_deps"
 645         eval dep_any="\$${cfg}_deps_any"
 646         eval dep_sel="\$${cfg}_select"
 647         eval dep_sgs="\$${cfg}_suggest"
 648         eval dep_ifa="\$${cfg}_if"
 649         eval dep_ifn="\$${cfg}_if_any"
 650
 651         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 652         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 653         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 654
 655         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 656         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 657         enabled_all  $dep_all || disable $cfg
 658         enabled_any  $dep_any || disable $cfg
 659         disabled_any $dep_sel && disable $cfg
 660
 661         if enabled $cfg; then
 662             enable_deep $dep_sel
 663             enable_deep_weak $dep_sgs
 664         fi
 665
 666         disable ${cfg}_checking
 667     done
 668 }
 669
 670 check_deps(){
 671     unset allopts
 672
 673     do_check_deps "$@"
 674
 675     for cfg in $allopts; do
 676         enabled $cfg || continue
 677         eval dep_extralibs="\$${cfg}_extralibs"
 678         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 679     done
 680 }
 681
 682 print_config(){
 683     pfx=$1
 684     files=$2
 685     shift 2
 686     map 'eval echo "$v \${$v:-no}"' "$@" |
 687     awk "BEGIN { split(\"$files\", files) }
 688         {
 689             c = \"$pfx\" toupper(\$1);
 690             v = \$2;
 691             sub(/yes/, 1, v);
 692             sub(/no/,  0, v);
 693             for (f in files) {
 694                 file = files[f];
 695                 if (file ~ /\\.h\$/) {
 696                     printf(\"#define %s %d\\n\", c, v) >>file;
 697                 } else if (file ~ /\\.asm\$/) {
 698                     printf(\"%%define %s %d\\n\", c, v) >>file;
 699                 } else if (file ~ /\\.mak\$/) {
 700                     n = -v ? \"\" : \"!\";
 701                     printf(\"%s%s=yes\\n\", n, c) >>file;
 702                 } else if (file ~ /\\.texi\$/) {
 703                     pre = -v ? \"\" : \"@c \";
 704                     yesno = \$2;
 705                     c2 = tolower(c);
 706                     gsub(/_/, \"-\", c2);
 707                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 708                 }
 709             }
 710         }"
 711 }
 712
 713 print_enabled(){
 714     suf=$1
 715     shift
 716     for v; do
 717         enabled $v && printf "%s\n" ${v%$suf};
 718     done
 719 }
 720
 721 append(){
 722     var=$1
 723     shift
 724     eval "$var=\"\$$var $*\""
 725 }
 726
 727 prepend(){
 728     var=$1
 729     shift
 730     eval "$var=\"$* \$$var\""
 731 }
 732
 733 unique(){
 734     var=$1
 735     uniq_list=""
 736     for tok in $(eval echo \$$var); do
 737         uniq_list="$(filter_out $tok $uniq_list) $tok"
 738     done
 739     eval "$var=\"${uniq_list}\""
 740 }
 741
 742 add_cppflags(){
 743     append CPPFLAGS "$@"
 744 }
 745
 746 add_cflags(){
 747     append CFLAGS $($cflags_filter "$@")
 748 }
 749
 750 add_cxxflags(){
 751     append CXXFLAGS $($cflags_filter "$@")
 752 }
 753
 754 add_asflags(){
 755     append ASFLAGS $($asflags_filter "$@")
 756 }
 757
 758 add_ldflags(){
 759     append LDFLAGS $($ldflags_filter "$@")
 760 }
 761
 762 add_ldexeflags(){
 763     append LDEXEFLAGS $($ldflags_filter "$@")
 764 }
 765
 766 add_stripflags(){
 767     append ASMSTRIPFLAGS "$@"
 768 }
 769
 770 add_extralibs(){
 771     prepend extralibs $($ldflags_filter "$@")
 772 }
 773
 774 add_host_cppflags(){
 775     append host_cppflags "$@"
 776 }
 777
 778 add_host_cflags(){
 779     append host_cflags $($host_cflags_filter "$@")
 780 }
 781
 782 add_host_ldflags(){
 783     append host_ldflags $($host_ldflags_filter "$@")
 784 }
 785
 786 add_compat(){
 787     append compat_objs $1
 788     shift
 789     map 'add_cppflags -D$v' "$@"
 790 }
 791
 792 check_cmd(){
 793     log "$@"
 794     "$@" >> $logfile 2>&1
 795 }
 796
 797 check_stat(){
 798     log check_stat "$@"
 799     stat "$1" >> $logfile 2>&1
 800 }
 801
 802 cc_o(){
 803     eval printf '%s\\n' $CC_O
 804 }
 805
 806 cc_e(){
 807     eval printf '%s\\n' $CC_E
 808 }
 809
 810 check_cc(){
 811     log check_cc "$@"
 812     cat > $TMPC
 813     log_file $TMPC
 814     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 815 }
 816
 817 check_cxx(){
 818     log check_cxx "$@"
 819     cat > $TMPCPP
 820     log_file $TMPCPP
 821     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 822 }
 823
 824 check_oc(){
 825     log check_oc "$@"
 826     cat > $TMPM
 827     log_file $TMPM
 828     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 829 }
 830
 831 check_cpp(){
 832     log check_cpp "$@"
 833     cat > $TMPC
 834     log_file $TMPC
 835     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 836 }
 837
 838 as_o(){
 839     eval printf '%s\\n' $AS_O
 840 }
 841
 842 check_as(){
 843     log check_as "$@"
 844     cat > $TMPS
 845     log_file $TMPS
 846     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 847 }
 848
 849 check_inline_asm(){
 850     log check_inline_asm "$@"
 851     name="$1"
 852     code="$2"
 853     shift 2
 854     disable $name
 855     check_cc "$@" <<EOF && enable $name
 856 void foo(void){ __asm__ volatile($code); }
 857 EOF
 858 }
 859
 860 check_insn(){
 861     log check_insn "$@"
 862     check_inline_asm ${1}_inline "\"$2\""
 863     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 864 }
 865
 866 check_yasm(){
 867     log check_yasm "$@"
 868     echo "$1" > $TMPS
 869     log_file $TMPS
 870     shift 1
 871     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 872 }
 873
 874 ld_o(){
 875     eval printf '%s\\n' $LD_O
 876 }
 877
 878 check_ld(){
 879     log check_ld "$@"
 880     type=$1
 881     shift 1
 882     flags=$(filter_out '-l*|*.so' $@)
 883     libs=$(filter '-l*|*.so' $@)
 884     check_$type $($cflags_filter $flags) || return
 885     flags=$($ldflags_filter $flags)
 886     libs=$($ldflags_filter $libs)
 887     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 888 }
 889
 890 print_include(){
 891     hdr=$1
 892     test "${hdr%.h}" = "${hdr}" &&
 893         echo "#include $hdr"    ||
 894         echo "#include <$hdr>"
 895 }
 896
 897 check_code(){
 898     log check_code "$@"
 899     check=$1
 900     headers=$2
 901     code=$3
 902     shift 3
 903     {
 904         for hdr in $headers; do
 905             print_include $hdr
 906         done
 907         echo "int main(void) { $code; return 0; }"
 908     } | check_$check "$@"
 909 }
 910
 911 check_cppflags(){
 912     log check_cppflags "$@"
 913     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 914 int x;
 915 EOF
 916 }
 917
 918 test_cflags(){
 919     log test_cflags "$@"
 920     set -- $($cflags_filter "$@")
 921     check_cc "$@" <<EOF
 922 int x;
 923 EOF
 924 }
 925
 926 check_cflags(){
 927     log check_cflags "$@"
 928     test_cflags "$@" && add_cflags "$@"
 929 }
 930
 931 check_cxxflags(){
 932     log check_cxxflags "$@"
 933     set -- $($cflags_filter "$@")
 934     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 935 int x;
 936 EOF
 937 }
 938
 939 test_ldflags(){
 940     log test_ldflags "$@"
 941     check_ld "cc" "$@" <<EOF
 942 int main(void){ return 0; }
 943 EOF
 944 }
 945
 946 check_ldflags(){
 947     log check_ldflags "$@"
 948     test_ldflags "$@" && add_ldflags "$@"
 949 }
 950
 951 test_stripflags(){
 952     log test_stripflags "$@"
 953     # call check_cc to get a fresh TMPO
 954     check_cc <<EOF
 955 int main(void) { return 0; }
 956 EOF
 957     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 958 }
 959
 960 check_stripflags(){
 961     log check_stripflags "$@"
 962     test_stripflags "$@" && add_stripflags "$@"
 963 }
 964
 965 check_header(){
 966     log check_header "$@"
 967     header=$1
 968     shift
 969     disable_safe $header
 970     check_cpp "$@" <<EOF && enable_safe $header
 971 #include <$header>
 972 int x;
 973 EOF
 974 }
 975
 976 check_header_oc(){
 977     log check_header_oc "$@"
 978     rm -f -- "$TMPO"
 979     header=$1
 980     shift
 981     disable_safe $header
 982     {
 983        echo "#include <$header>"
 984        echo "int main(void) { return 0; }"
 985     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 986 }
 987
 988 check_func(){
 989     log check_func "$@"
 990     func=$1
 991     shift
 992     disable $func
 993     check_ld "cc" "$@" <<EOF && enable $func
 994 extern int $func();
 995 int main(void){ $func(); }
 996 EOF
 997 }
 998
 999 check_mathfunc(){
1000     log check_mathfunc "$@"
1001     func=$1
1002     narg=$2
1003     shift 2
1004     test $narg = 2 && args="f, g" || args="f"
1005     disable $func
1006     check_ld "cc" "$@" <<EOF && enable $func
1007 #include <math.h>
1008 float foo(float f, float g) { return $func($args); }
1009 int main(void){ return (int) foo; }
1010 EOF
1011 }
1012
1013 check_func_headers(){
1014     log check_func_headers "$@"
1015     headers=$1
1016     funcs=$2
1017     shift 2
1018     {
1019         for hdr in $headers; do
1020             print_include $hdr
1021         done
1022         for func in $funcs; do
1023             echo "long check_$func(void) { return (long) $func; }"
1024         done
1025         echo "int main(void) { return 0; }"
1026     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1027 }
1028
1029 check_class_headers_cpp(){
1030     log check_class_headers_cpp "$@"
1031     headers=$1
1032     classes=$2
1033     shift 2
1034     {
1035         for hdr in $headers; do
1036             echo "#include <$hdr>"
1037         done
1038         echo "int main(void) { "
1039         i=1
1040         for class in $classes; do
1041             echo "$class obj$i;"
1042             i=$(expr $i + 1)
1043         done
1044         echo "return 0; }"
1045     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1046 }
1047
1048 check_cpp_condition(){
1049     log check_cpp_condition "$@"
1050     header=$1
1051     condition=$2
1052     shift 2
1053     check_cpp "$@" <<EOF
1054 #include <$header>
1055 #if !($condition)
1056 #error "unsatisfied condition: $condition"
1057 #endif
1058 EOF
1059 }
1060
1061 check_lib(){
1062     log check_lib "$@"
1063     header="$1"
1064     func="$2"
1065     shift 2
1066     check_header $header && check_func $func "$@" && add_extralibs "$@"
1067 }
1068
1069 check_lib2(){
1070     log check_lib2 "$@"
1071     headers="$1"
1072     funcs="$2"
1073     shift 2
1074     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1075 }
1076
1077 check_lib_cpp(){
1078     log check_lib_cpp "$@"
1079     headers="$1"
1080     classes="$2"
1081     shift 2
1082     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1083 }
1084
1085 check_pkg_config(){
1086     log check_pkg_config "$@"
1087     pkgandversion="$1"
1088     pkg="${1%% *}"
1089     headers="$2"
1090     funcs="$3"
1091     shift 3
1092     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1093     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1094     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1095     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1096         set_safe ${pkg}_cflags $pkg_cflags   &&
1097         set_safe ${pkg}_libs   $pkg_libs
1098 }
1099
1100 check_exec(){
1101     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1102 }
1103
1104 check_exec_crash(){
1105     code=$(cat)
1106
1107     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1108     # are safe but may not be available everywhere.  Thus we use
1109     # raise(SIGTERM) instead.  The check is run in a subshell so we
1110     # can redirect the "Terminated" message from the shell.  SIGBUS
1111     # is not defined by standard C so it is used conditionally.
1112
1113     (check_exec "$@") >> $logfile 2>&1 <<EOF
1114 #include <signal.h>
1115 static void sighandler(int sig){
1116     raise(SIGTERM);
1117 }
1118 int foo(void){
1119     $code
1120 }
1121 int (*func_ptr)(void) = foo;
1122 int main(void){
1123     signal(SIGILL, sighandler);
1124     signal(SIGFPE, sighandler);
1125     signal(SIGSEGV, sighandler);
1126 #ifdef SIGBUS
1127     signal(SIGBUS, sighandler);
1128 #endif
1129     return func_ptr();
1130 }
1131 EOF
1132 }
1133
1134 check_type(){
1135     log check_type "$@"
1136     headers=$1
1137     type=$2
1138     shift 2
1139     disable_safe "$type"
1140     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1141 }
1142
1143 check_struct(){
1144     log check_struct "$@"
1145     headers=$1
1146     struct=$2
1147     member=$3
1148     shift 3
1149     disable_safe "${struct}_${member}"
1150     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1151         enable_safe "${struct}_${member}"
1152 }
1153
1154 check_builtin(){
1155     log check_builtin "$@"
1156     name=$1
1157     headers=$2
1158     builtin=$3
1159     shift 3
1160     disable "$name"
1161     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1162 }
1163
1164 check_compile_assert(){
1165     log check_compile_assert "$@"
1166     name=$1
1167     headers=$2
1168     condition=$3
1169     shift 3
1170     disable "$name"
1171     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1172 }
1173
1174 require(){
1175     name="$1"
1176     header="$2"
1177     func="$3"
1178     shift 3
1179     check_lib $header $func "$@" || die "ERROR: $name not found"
1180 }
1181
1182 require2(){
1183     name="$1"
1184     headers="$2"
1185     func="$3"
1186     shift 3
1187     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1188 }
1189
1190 require_cpp(){
1191     name="$1"
1192     headers="$2"
1193     classes="$3"
1194     shift 3
1195     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1196 }
1197
1198 require_pkg_config(){
1199     pkg="$1"
1200     check_pkg_config "$@" || die "ERROR: $pkg not found"
1201     add_cflags    $(get_safe ${pkg}_cflags)
1202     add_extralibs $(get_safe ${pkg}_libs)
1203 }
1204
1205 require_libfreetype(){
1206     log require_libfreetype "$@"
1207     pkg="freetype2"
1208     check_cmd $pkg_config --exists --print-errors $pkg \
1209       || die "ERROR: $pkg not found"
1210     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1211     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1212     {
1213         echo "#include <ft2build.h>"
1214         echo "#include FT_FREETYPE_H"
1215         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1216         echo "int main(void) { return 0; }"
1217     } | check_ld "cc" $pkg_cflags $pkg_libs \
1218       && set_safe ${pkg}_cflags $pkg_cflags \
1219       && set_safe ${pkg}_libs   $pkg_libs \
1220       || die "ERROR: $pkg not found"
1221     add_cflags    $(get_safe ${pkg}_cflags)
1222     add_extralibs $(get_safe ${pkg}_libs)
1223 }
1224
1225 hostcc_e(){
1226     eval printf '%s\\n' $HOSTCC_E
1227 }
1228
1229 hostcc_o(){
1230     eval printf '%s\\n' $HOSTCC_O
1231 }
1232
1233 check_host_cc(){
1234     log check_host_cc "$@"
1235     cat > $TMPC
1236     log_file $TMPC
1237     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1238 }
1239
1240 check_host_cpp(){
1241     log check_host_cpp "$@"
1242     cat > $TMPC
1243     log_file $TMPC
1244     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1245 }
1246
1247 check_host_cppflags(){
1248     log check_host_cppflags "$@"
1249     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1250 int x;
1251 EOF
1252 }
1253
1254 check_host_cflags(){
1255     log check_host_cflags "$@"
1256     set -- $($host_cflags_filter "$@")
1257     check_host_cc "$@" <<EOF && append host_cflags "$@"
1258 int x;
1259 EOF
1260 }
1261
1262 check_host_cpp_condition(){
1263     log check_host_cpp_condition "$@"
1264     header=$1
1265     condition=$2
1266     shift 2
1267     check_host_cpp "$@" <<EOF
1268 #include <$header>
1269 #if !($condition)
1270 #error "unsatisfied condition: $condition"
1271 #endif
1272 EOF
1273 }
1274
1275 apply(){
1276     file=$1
1277     shift
1278     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1279 }
1280
1281 cp_if_changed(){
1282     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1283     mkdir -p "$(dirname $2)"
1284     $cp_f "$1" "$2"
1285 }
1286
1287 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1288 # system-dependent things.
1289
1290 COMPONENT_LIST="
1291     bsfs
1292     decoders
1293     demuxers
1294     encoders
1295     filters
1296     hwaccels
1297     indevs
1298     muxers
1299     outdevs
1300     parsers
1301     protocols
1302 "
1303
1304 EXAMPLE_LIST="
1305     avio_reading_example
1306     decoding_encoding_example
1307     demuxing_decoding_example
1308     filter_audio_example
1309     filtering_audio_example
1310     filtering_video_example
1311     metadata_example
1312     muxing_example
1313     remuxing_example
1314     resampling_audio_example
1315     scaling_video_example
1316     transcode_aac_example
1317     transcoding_example
1318 "
1319
1320 EXTERNAL_LIBRARY_LIST="
1321     avisynth
1322     bzlib
1323     crystalhd
1324     decklink
1325     frei0r
1326     gnutls
1327     iconv
1328     ladspa
1329     libaacplus
1330     libass
1331     libbluray
1332     libbs2b
1333     libcaca
1334     libcdio
1335     libcelt
1336     libdc1394
1337     libfaac
1338     libfdk_aac
1339     libflite
1340     libfontconfig
1341     libfreetype
1342     libfribidi
1343     libgme
1344     libgsm
1345     libiec61883
1346     libilbc
1347     libmodplug
1348     libmp3lame
1349     libnut
1350     libopencore_amrnb
1351     libopencore_amrwb
1352     libopencv
1353     libopenjpeg
1354     libopus
1355     libpulse
1356     libquvi
1357     librtmp
1358     libschroedinger
1359     libshine
1360     libsmbclient
1361     libsoxr
1362     libspeex
1363     libssh
1364     libstagefright_h264
1365     libtheora
1366     libtwolame
1367     libutvideo
1368     libv4l2
1369     libvidstab
1370     libvo_aacenc
1371     libvo_amrwbenc
1372     libvorbis
1373     libvpx
1374     libwavpack
1375     libwebp
1376     libx264
1377     libx265
1378     libxavs
1379     libxvid
1380     libzmq
1381     libzvbi
1382     openal
1383     opencl
1384     opengl
1385     openssl
1386     x11grab
1387     xlib
1388     zlib
1389 "
1390
1391 DOCUMENT_LIST="
1392     doc
1393     htmlpages
1394     manpages
1395     podpages
1396     txtpages
1397 "
1398
1399 FEATURE_LIST="
1400     ftrapv
1401     gray
1402     hardcoded_tables
1403     runtime_cpudetect
1404     safe_bitstream_reader
1405     shared
1406     small
1407     sram
1408     static
1409     swscale_alpha
1410 "
1411
1412 HWACCEL_LIST="
1413     dxva2
1414     vaapi
1415     vda
1416     vdpau
1417     xvmc
1418 "
1419
1420 LIBRARY_LIST="
1421     avcodec
1422     avdevice
1423     avfilter
1424     avformat
1425     avresample
1426     avutil
1427     postproc
1428     swresample
1429     swscale
1430 "
1431
1432 LICENSE_LIST="
1433     gpl
1434     nonfree
1435     version3
1436 "
1437
1438 PROGRAM_LIST="
1439     ffplay
1440     ffprobe
1441     ffserver
1442     ffmpeg
1443 "
1444
1445 SUBSYSTEM_LIST="
1446     dct
1447     dwt
1448     error_resilience
1449     fast_unaligned
1450     fft
1451     lsp
1452     lzo
1453     mdct
1454     network
1455     rdft
1456 "
1457
1458 CONFIG_LIST="
1459     $COMPONENT_LIST
1460     $DOCUMENT_LIST
1461     $EXAMPLE_LIST
1462     $EXTERNAL_LIBRARY_LIST
1463     $FEATURE_LIST
1464     $HWACCEL_LIST
1465     $LICENSE_LIST
1466     $LIBRARY_LIST
1467     $PROGRAM_LIST
1468     $SUBSYSTEM_LIST
1469     fontconfig
1470     incompatible_libav_abi
1471     memalign_hack
1472     memory_poisoning
1473     neon_clobber_test
1474     pic
1475     pod2man
1476     raise_major
1477     thumb
1478     xmm_clobber_test
1479 "
1480
1481 THREADS_LIST="
1482     pthreads
1483     os2threads
1484     w32threads
1485 "
1486
1487 ATOMICS_LIST="
1488     atomics_gcc
1489     atomics_suncc
1490     atomics_win32
1491 "
1492
1493 ARCH_LIST="
1494     aarch64
1495     alpha
1496     arm
1497     avr32
1498     avr32_ap
1499     avr32_uc
1500     bfin
1501     ia64
1502     m68k
1503     mips
1504     mips64
1505     parisc
1506     ppc
1507     ppc64
1508     s390
1509     sh4
1510     sparc
1511     sparc64
1512     tilegx
1513     tilepro
1514     tomi
1515     x86
1516     x86_32
1517     x86_64
1518 "
1519
1520 ARCH_EXT_LIST_ARM="
1521     armv5te
1522     armv6
1523     armv6t2
1524     armv8
1525     neon
1526     vfp
1527     vfpv3
1528 "
1529
1530 ARCH_EXT_LIST_MIPS="
1531     mipsfpu
1532     mips32r2
1533     mipsdspr1
1534     mipsdspr2
1535 "
1536
1537 ARCH_EXT_LIST_X86_SIMD="
1538     amd3dnow
1539     amd3dnowext
1540     avx
1541     avx2
1542     fma3
1543     fma4
1544     mmx
1545     mmxext
1546     sse
1547     sse2
1548     sse3
1549     sse4
1550     sse42
1551     ssse3
1552     xop
1553 "
1554
1555 ARCH_EXT_LIST_PPC="
1556     altivec
1557     dcbzl
1558     ldbrx
1559     ppc4xx
1560     vsx
1561 "
1562
1563 ARCH_EXT_LIST_X86="
1564     $ARCH_EXT_LIST_X86_SIMD
1565     cpunop
1566     i686
1567 "
1568
1569 ARCH_EXT_LIST="
1570     $ARCH_EXT_LIST_ARM
1571     $ARCH_EXT_LIST_PPC
1572     $ARCH_EXT_LIST_X86
1573     $ARCH_EXT_LIST_MIPS
1574     loongson
1575 "
1576
1577 ARCH_FEATURES="
1578     aligned_stack
1579     fast_64bit
1580     fast_clz
1581     fast_cmov
1582     local_aligned_8
1583     local_aligned_16
1584     local_aligned_32
1585     simd_align_16
1586 "
1587
1588 BUILTIN_LIST="
1589     atomic_cas_ptr
1590     machine_rw_barrier
1591     MemoryBarrier
1592     mm_empty
1593     rdtsc
1594     sarestart
1595     sync_val_compare_and_swap
1596 "
1597 HAVE_LIST_CMDLINE="
1598     inline_asm
1599     symver
1600     yasm
1601 "
1602
1603 HAVE_LIST_PUB="
1604     bigendian
1605     fast_unaligned
1606     incompatible_libav_abi
1607 "
1608
1609 HEADERS_LIST="
1610     alsa_asoundlib_h
1611     altivec_h
1612     arpa_inet_h
1613     asm_types_h
1614     cdio_paranoia_h
1615     cdio_paranoia_paranoia_h
1616     CL_cl_h
1617     dev_bktr_ioctl_bt848_h
1618     dev_bktr_ioctl_meteor_h
1619     dev_ic_bt8xx_h
1620     dev_video_bktr_ioctl_bt848_h
1621     dev_video_meteor_ioctl_meteor_h
1622     direct_h
1623     dlfcn_h
1624     dxva_h
1625     ES2_gl_h
1626     gsm_h
1627     io_h
1628     mach_mach_time_h
1629     machine_ioctl_bt848_h
1630     machine_ioctl_meteor_h
1631     malloc_h
1632     openjpeg_1_5_openjpeg_h
1633     OpenGL_gl3_h
1634     poll_h
1635     sndio_h
1636     soundcard_h
1637     sys_mman_h
1638     sys_param_h
1639     sys_resource_h
1640     sys_select_h
1641     sys_soundcard_h
1642     sys_time_h
1643     sys_un_h
1644     sys_videoio_h
1645     termios_h
1646     unistd_h
1647     windows_h
1648     winsock2_h
1649 "
1650
1651 INTRINSICS_LIST="
1652     intrinsics_neon
1653 "
1654
1655 MATH_FUNCS="
1656     atanf
1657     atan2f
1658     cbrt
1659     cbrtf
1660     cosf
1661     exp2
1662     exp2f
1663     expf
1664     fminf
1665     isinf
1666     isnan
1667     ldexpf
1668     llrint
1669     llrintf
1670     log2
1671     log2f
1672     log10f
1673     lrint
1674     lrintf
1675     powf
1676     rint
1677     round
1678     roundf
1679     sinf
1680     trunc
1681     truncf
1682 "
1683
1684 SYSTEM_FUNCS="
1685     access
1686     aligned_malloc
1687     clock_gettime
1688     closesocket
1689     CommandLineToArgvW
1690     CoTaskMemFree
1691     CryptGenRandom
1692     dlopen
1693     fcntl
1694     flt_lim
1695     fork
1696     getaddrinfo
1697     gethrtime
1698     getopt
1699     GetProcessAffinityMask
1700     GetProcessMemoryInfo
1701     GetProcessTimes
1702     getrusage
1703     getservbyport
1704     GetSystemTimeAsFileTime
1705     gettimeofday
1706     glob
1707     glXGetProcAddress
1708     inet_aton
1709     isatty
1710     jack_port_get_latency_range
1711     kbhit
1712     localtime_r
1713     lzo1x_999_compress
1714     mach_absolute_time
1715     MapViewOfFile
1716     memalign
1717     mkstemp
1718     mmap
1719     mprotect
1720     nanosleep
1721     PeekNamedPipe
1722     posix_memalign
1723     pthread_cancel
1724     sched_getaffinity
1725     SetConsoleTextAttribute
1726     setmode
1727     setrlimit
1728     Sleep
1729     strerror_r
1730     sysconf
1731     sysctl
1732     usleep
1733     VirtualAlloc
1734     wglGetProcAddress
1735 "
1736
1737 TOOLCHAIN_FEATURES="
1738     as_dn_directive
1739     as_func
1740     asm_mod_q
1741     attribute_may_alias
1742     attribute_packed
1743     ebp_available
1744     ebx_available
1745     gnu_as
1746     gnu_windres
1747     ibm_asm
1748     inline_asm_labels
1749     inline_asm_nonlocal_labels
1750     inline_asm_direct_symbol_refs
1751     pragma_deprecated
1752     rsync_contimeout
1753     symver_asm_label
1754     symver_gnu_asm
1755     vfp_args
1756     xform_asm
1757     xmm_clobbers
1758 "
1759
1760 TYPES_LIST="
1761     socklen_t
1762     struct_addrinfo
1763     struct_group_source_req
1764     struct_ip_mreq_source
1765     struct_ipv6_mreq
1766     struct_pollfd
1767     struct_rusage_ru_maxrss
1768     struct_sctp_event_subscribe
1769     struct_sockaddr_in6
1770     struct_sockaddr_sa_len
1771     struct_sockaddr_storage
1772     struct_stat_st_mtim_tv_nsec
1773     struct_v4l2_frmivalenum_discrete
1774 "
1775
1776 HAVE_LIST="
1777     $ARCH_EXT_LIST
1778     $(add_suffix _external $ARCH_EXT_LIST)
1779     $(add_suffix _inline   $ARCH_EXT_LIST)
1780     $ARCH_FEATURES
1781     $ATOMICS_LIST
1782     $BUILTIN_LIST
1783     $HAVE_LIST_CMDLINE
1784     $HAVE_LIST_PUB
1785     $HEADERS_LIST
1786     $INTRINSICS_LIST
1787     $MATH_FUNCS
1788     $SYSTEM_FUNCS
1789     $THREADS_LIST
1790     $TOOLCHAIN_FEATURES
1791     $TYPES_LIST
1792     atomics_native
1793     dos_paths
1794     dxva2api_cobj
1795     dxva2_lib
1796     libc_msvcrt
1797     libdc1394_1
1798     libdc1394_2
1799     makeinfo
1800     perl
1801     pod2man
1802     sdl
1803     texi2html
1804     threads
1805     vdpau_x11
1806     xlib
1807 "
1808
1809 # options emitted with CONFIG_ prefix but not available on the command line
1810 CONFIG_EXTRA="
1811     aandcttables
1812     ac3dsp
1813     audio_frame_queue
1814     audiodsp
1815     blockdsp
1816     bswapdsp
1817     cabac
1818     dvprofile
1819     exif
1820     fdctdsp
1821     frame_thread_encoder
1822     gcrypt
1823     golomb
1824     gplv3
1825     h263dsp
1826     h264chroma
1827     h264dsp
1828     h264pred
1829     h264qpel
1830     hpeldsp
1831     huffman
1832     huffyuvdsp
1833     huffyuvencdsp
1834     idctdsp
1835     iirfilter
1836     intrax8
1837     lgplv3
1838     llauddsp
1839     llviddsp
1840     lpc
1841     me_cmp
1842     mpeg_er
1843     mpegaudio
1844     mpegaudiodsp
1845     mpegvideo
1846     mpegvideoenc
1847     nettle
1848     pixblockdsp
1849     qpeldsp
1850     rangecoder
1851     riffdec
1852     riffenc
1853     rtpdec
1854     rtpenc_chain
1855     sinewin
1856     tpeldsp
1857     videodsp
1858     vp3dsp
1859 "
1860
1861 CMDLINE_SELECT="
1862     $ARCH_EXT_LIST
1863     $CONFIG_LIST
1864     $HAVE_LIST_CMDLINE
1865     $THREADS_LIST
1866     asm
1867     cross_compile
1868     debug
1869     extra_warnings
1870     logging
1871     lto
1872     optimizations
1873     rpath
1874     stripping
1875 "
1876
1877 PATHS_LIST="
1878     bindir
1879     datadir
1880     docdir
1881     incdir
1882     libdir
1883     mandir
1884     prefix
1885     shlibdir
1886 "
1887
1888 CMDLINE_SET="
1889     $PATHS_LIST
1890     ar
1891     arch
1892     as
1893     assert_level
1894     build_suffix
1895     cc
1896     cpu
1897     cross_prefix
1898     cxx
1899     dep_cc
1900     doxygen
1901     extra_version
1902     gas
1903     host_cc
1904     host_cflags
1905     host_ld
1906     host_ldflags
1907     host_libs
1908     host_os
1909     install
1910     ld
1911     logfile
1912     malloc_prefix
1913     nm
1914     optflags
1915     pkg_config
1916     pkg_config_flags
1917     progs_suffix
1918     random_seed
1919     ranlib
1920     samples
1921     strip
1922     sws_max_filter_size
1923     sysinclude
1924     sysroot
1925     target_exec
1926     target_os
1927     target_path
1928     target_samples
1929     tempprefix
1930     toolchain
1931     valgrind
1932     yasmexe
1933 "
1934
1935 CMDLINE_APPEND="
1936     extra_cflags
1937     extra_cxxflags
1938     host_cppflags
1939 "
1940
1941 # code dependency declarations
1942
1943 # architecture extensions
1944
1945 armv5te_deps="arm"
1946 armv6_deps="arm"
1947 armv6t2_deps="arm"
1948 armv8_deps="aarch64"
1949 neon_deps_any="aarch64 arm"
1950 intrinsics_neon_deps="neon"
1951 vfp_deps_any="aarch64 arm"
1952 vfpv3_deps="vfp"
1953
1954 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1955
1956 mipsfpu_deps="mips"
1957 mips32r2_deps="mips"
1958 mipsdspr1_deps="mips"
1959 mipsdspr2_deps="mips"
1960
1961 altivec_deps="ppc"
1962 ppc4xx_deps="ppc"
1963 vsx_deps="ppc"
1964
1965 cpunop_deps="i686"
1966 x86_64_select="i686"
1967 x86_64_suggest="fast_cmov"
1968
1969 amd3dnow_deps="mmx"
1970 amd3dnowext_deps="amd3dnow"
1971 i686_deps="x86"
1972 mmx_deps="x86"
1973 mmxext_deps="mmx"
1974 sse_deps="mmxext"
1975 sse2_deps="sse"
1976 sse3_deps="sse2"
1977 ssse3_deps="sse3"
1978 sse4_deps="ssse3"
1979 sse42_deps="sse4"
1980 avx_deps="sse42"
1981 xop_deps="avx"
1982 fma3_deps="avx"
1983 fma4_deps="avx"
1984 avx2_deps="avx"
1985
1986 mmx_external_deps="yasm"
1987 mmx_inline_deps="inline_asm"
1988 mmx_suggest="mmx_external mmx_inline"
1989
1990 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1991     eval dep=\$${ext}_deps
1992     eval ${ext}_external_deps='"${dep}_external"'
1993     eval ${ext}_inline_deps='"${dep}_inline"'
1994     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1995 done
1996
1997 aligned_stack_if_any="aarch64 ppc x86"
1998 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1999 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2000 fast_unaligned_if_any="aarch64 ppc x86"
2001 simd_align_16_if_any="altivec neon sse"
2002
2003 # system capabilities
2004
2005 symver_if_any="symver_asm_label symver_gnu_asm"
2006
2007 # threading support
2008 atomics_gcc_if="sync_val_compare_and_swap"
2009 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2010 atomics_win32_if="MemoryBarrier"
2011 atomics_native_if_any="$ATOMICS_LIST"
2012 w32threads_deps="atomics_native"
2013 threads_if_any="$THREADS_LIST"
2014
2015 # subsystems
2016 dct_select="rdft"
2017 error_resilience_select="me_cmp"
2018 frame_thread_encoder_deps="encoders threads"
2019 intrax8_select="error_resilience"
2020 mdct_select="fft"
2021 rdft_select="fft"
2022 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2023 mpeg_er_select="error_resilience"
2024 mpegaudio_select="mpegaudiodsp"
2025 mpegaudiodsp_select="dct"
2026 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2027 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2028
2029 # decoders / encoders
2030 aac_decoder_select="mdct sinewin"
2031 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2032 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2033 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2034 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2035 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2036 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2037 aic_decoder_select="golomb idctdsp"
2038 alac_encoder_select="lpc"
2039 als_decoder_select="bswapdsp"
2040 amrnb_decoder_select="lsp"
2041 amrwb_decoder_select="lsp"
2042 amv_decoder_select="sp5x_decoder exif"
2043 amv_encoder_select="aandcttables mpegvideoenc"
2044 ape_decoder_select="bswapdsp llauddsp"
2045 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2046 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2047 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2048 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2049 atrac1_decoder_select="mdct sinewin"
2050 atrac3_decoder_select="mdct"
2051 atrac3p_decoder_select="mdct sinewin"
2052 avrn_decoder_select="exif"
2053 bink_decoder_select="blockdsp hpeldsp"
2054 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
2055 binkaudio_rdft_decoder_select="mdct rdft sinewin"
2056 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2057 cllc_decoder_select="bswapdsp"
2058 comfortnoise_encoder_select="lpc"
2059 cook_decoder_select="audiodsp mdct sinewin"
2060 cscd_decoder_select="lzo"
2061 cscd_decoder_suggest="zlib"
2062 dca_decoder_select="mdct"
2063 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2064 dnxhd_decoder_select="blockdsp idctdsp"
2065 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2066 dvvideo_decoder_select="dvprofile idctdsp"
2067 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2068 dxa_decoder_select="zlib"
2069 eac3_decoder_select="ac3_decoder"
2070 eac3_encoder_select="ac3_encoder"
2071 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2072 eatgq_decoder_select="aandcttables"
2073 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2074 exr_decoder_select="zlib"
2075 ffv1_decoder_select="golomb rangecoder"
2076 ffv1_encoder_select="rangecoder"
2077 ffvhuff_decoder_select="huffyuv_decoder"
2078 ffvhuff_encoder_select="huffyuv_encoder"
2079 fic_decoder_select="golomb"
2080 flac_decoder_select="golomb"
2081 flac_encoder_select="bswapdsp golomb lpc"
2082 flashsv_decoder_select="zlib"
2083 flashsv_encoder_select="zlib"
2084 flashsv2_encoder_select="zlib"
2085 flashsv2_decoder_select="zlib"
2086 flv_decoder_select="h263_decoder"
2087 flv_encoder_select="h263_encoder"
2088 fourxm_decoder_select="blockdsp bswapdsp"
2089 fraps_decoder_select="bswapdsp huffman"
2090 g2m_decoder_select="blockdsp idctdsp zlib"
2091 g729_decoder_select="audiodsp"
2092 h261_decoder_select="mpeg_er mpegvideo"
2093 h261_encoder_select="aandcttables mpegvideoenc"
2094 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2095 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2096 h263i_decoder_select="h263_decoder"
2097 h263p_encoder_select="h263_encoder"
2098 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2099 h264_decoder_suggest="error_resilience"
2100 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2101 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2102 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2103 iac_decoder_select="imc_decoder"
2104 imc_decoder_select="bswapdsp fft mdct sinewin"
2105 indeo3_decoder_select="hpeldsp"
2106 interplay_video_decoder_select="hpeldsp"
2107 jpegls_decoder_select="golomb mjpeg_decoder"
2108 jpegls_encoder_select="golomb"
2109 jv_decoder_select="blockdsp"
2110 lagarith_decoder_select="huffyuvdsp"
2111 ljpeg_encoder_select="aandcttables idctdsp"
2112 loco_decoder_select="golomb"
2113 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2114 metasound_decoder_select="lsp mdct sinewin"
2115 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2116 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2117 mjpeg_encoder_select="aandcttables mpegvideoenc"
2118 mjpegb_decoder_select="mjpeg_decoder"
2119 mlp_decoder_select="mlp_parser"
2120 motionpixels_decoder_select="bswapdsp"
2121 mp1_decoder_select="mpegaudio"
2122 mp1float_decoder_select="mpegaudio"
2123 mp2_decoder_select="mpegaudio"
2124 mp2float_decoder_select="mpegaudio"
2125 mp3_decoder_select="mpegaudio"
2126 mp3adu_decoder_select="mpegaudio"
2127 mp3adufloat_decoder_select="mpegaudio"
2128 mp3float_decoder_select="mpegaudio"
2129 mp3on4_decoder_select="mpegaudio"
2130 mp3on4float_decoder_select="mpegaudio"
2131 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2132 mpc8_decoder_select="mpegaudiodsp"
2133 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2134 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2135 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2136 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2137 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2138 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2139 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2140 mpeg4_encoder_select="h263_encoder"
2141 msmpeg4v1_decoder_select="h263_decoder"
2142 msmpeg4v2_decoder_select="h263_decoder"
2143 msmpeg4v2_encoder_select="h263_encoder"
2144 msmpeg4v3_decoder_select="h263_decoder"
2145 msmpeg4v3_encoder_select="h263_encoder"
2146 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2147 mxpeg_decoder_select="mjpeg_decoder"
2148 nellymoser_decoder_select="mdct sinewin"
2149 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2150 nuv_decoder_select="idctdsp lzo"
2151 on2avc_decoder_select="mdct"
2152 opus_decoder_deps="swresample"
2153 png_decoder_select="zlib"
2154 png_encoder_select="huffyuvencdsp zlib"
2155 prores_decoder_select="blockdsp idctdsp"
2156 prores_encoder_select="fdctdsp"
2157 qcelp_decoder_select="lsp"
2158 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2159 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2160 ra_144_decoder_select="audiodsp"
2161 ralf_decoder_select="golomb"
2162 rawvideo_decoder_select="bswapdsp"
2163 rtjpeg_decoder_select="me_cmp"
2164 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2165 rv10_encoder_select="h263_encoder"
2166 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2167 rv20_encoder_select="h263_encoder"
2168 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2169 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2170 shorten_decoder_select="golomb"
2171 sipr_decoder_select="lsp"
2172 snow_decoder_select="dwt h264qpel hpeldsp rangecoder"
2173 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2174 sonic_decoder_select="golomb rangecoder"
2175 sonic_encoder_select="golomb rangecoder"
2176 sonic_ls_encoder_select="golomb rangecoder"
2177 sp5x_decoder_select="mjpeg_decoder"
2178 svq1_decoder_select="hpeldsp"
2179 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2180 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2181 svq3_decoder_suggest="zlib"
2182 tak_decoder_select="audiodsp"
2183 theora_decoder_select="vp3_decoder"
2184 thp_decoder_select="mjpeg_decoder"
2185 tiff_decoder_suggest="zlib"
2186 tiff_encoder_suggest="zlib"
2187 truehd_decoder_select="mlp_parser"
2188 truemotion2_decoder_select="bswapdsp"
2189 truespeech_decoder_select="bswapdsp"
2190 tscc_decoder_select="zlib"
2191 twinvq_decoder_select="mdct lsp sinewin"
2192 utvideo_decoder_select="bswapdsp"
2193 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2194 vble_decoder_select="huffyuvdsp"
2195 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp"
2196 vc1image_decoder_select="vc1_decoder"
2197 vorbis_decoder_select="mdct"
2198 vorbis_encoder_select="mdct"
2199 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2200 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2201 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2202 vp6a_decoder_select="vp6_decoder"
2203 vp6f_decoder_select="vp6_decoder"
2204 vp7_decoder_select="h264pred videodsp"
2205 vp8_decoder_select="h264pred videodsp"
2206 vp9_decoder_select="videodsp vp9_parser"
2207 webp_decoder_select="vp8_decoder"
2208 wmalossless_decoder_select="llauddsp"
2209 wmapro_decoder_select="mdct sinewin"
2210 wmav1_decoder_select="mdct sinewin"
2211 wmav1_encoder_select="mdct sinewin"
2212 wmav2_decoder_select="mdct sinewin"
2213 wmav2_encoder_select="mdct sinewin"
2214 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2215 wmv1_decoder_select="h263_decoder"
2216 wmv1_encoder_select="h263_encoder"
2217 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2218 wmv2_encoder_select="h263_encoder"
2219 wmv3_decoder_select="vc1_decoder"
2220 wmv3image_decoder_select="wmv3_decoder"
2221 zerocodec_decoder_select="zlib"
2222 zlib_decoder_select="zlib"
2223 zlib_encoder_select="zlib"
2224 zmbv_decoder_select="zlib"
2225 zmbv_encoder_select="zlib"
2226
2227 # hardware accelerators
2228 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2229 dxva2_deps="dxva2api_h"
2230 vaapi_deps="va_va_h"
2231 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2232 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2233 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2234 xvmc_deps="X11_extensions_XvMClib_h"
2235
2236 h263_vaapi_hwaccel_deps="vaapi"
2237 h263_vaapi_hwaccel_select="h263_decoder"
2238 h263_vdpau_hwaccel_deps="vdpau"
2239 h263_vdpau_hwaccel_select="h263_decoder"
2240 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2241 h264_dxva2_hwaccel_deps="dxva2"
2242 h264_dxva2_hwaccel_select="h264_decoder"
2243 h264_vaapi_hwaccel_deps="vaapi"
2244 h264_vaapi_hwaccel_select="h264_decoder"
2245 h264_vda_decoder_deps="vda"
2246 h264_vda_decoder_select="h264_decoder"
2247 h264_vda_hwaccel_deps="vda"
2248 h264_vda_hwaccel_select="h264_decoder"
2249 h264_vda_old_hwaccel_deps="vda"
2250 h264_vda_old_hwaccel_select="h264_decoder"
2251 h264_vdpau_decoder_deps="vdpau"
2252 h264_vdpau_decoder_select="h264_decoder"
2253 h264_vdpau_hwaccel_deps="vdpau"
2254 h264_vdpau_hwaccel_select="h264_decoder"
2255 mpeg_vdpau_decoder_deps="vdpau"
2256 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2257 mpeg_xvmc_hwaccel_deps="xvmc"
2258 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2259 mpeg1_vdpau_decoder_deps="vdpau"
2260 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2261 mpeg1_vdpau_hwaccel_deps="vdpau"
2262 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2263 mpeg1_xvmc_hwaccel_deps="xvmc"
2264 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2265 mpeg2_crystalhd_decoder_select="crystalhd"
2266 mpeg2_dxva2_hwaccel_deps="dxva2"
2267 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2268 mpeg2_vaapi_hwaccel_deps="vaapi"
2269 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2270 mpeg2_vdpau_hwaccel_deps="vdpau"
2271 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2272 mpeg2_xvmc_hwaccel_deps="xvmc"
2273 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2274 mpeg4_crystalhd_decoder_select="crystalhd"
2275 mpeg4_vaapi_hwaccel_deps="vaapi"
2276 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2277 mpeg4_vdpau_decoder_deps="vdpau"
2278 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2279 mpeg4_vdpau_hwaccel_deps="vdpau"
2280 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2281 msmpeg4_crystalhd_decoder_select="crystalhd"
2282 vc1_crystalhd_decoder_select="crystalhd"
2283 vc1_dxva2_hwaccel_deps="dxva2"
2284 vc1_dxva2_hwaccel_select="vc1_decoder"
2285 vc1_vaapi_hwaccel_deps="vaapi"
2286 vc1_vaapi_hwaccel_select="vc1_decoder"
2287 vc1_vdpau_decoder_deps="vdpau"
2288 vc1_vdpau_decoder_select="vc1_decoder"
2289 vc1_vdpau_hwaccel_deps="vdpau"
2290 vc1_vdpau_hwaccel_select="vc1_decoder"
2291 wmv3_crystalhd_decoder_select="crystalhd"
2292 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2293 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2294 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2295 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2296
2297 # parsers
2298 h264_parser_select="h264_decoder"
2299 hevc_parser_select="hevc_decoder"
2300 mpegvideo_parser_select="mpegvideo"
2301 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2302 vc1_parser_select="mpegvideo vc1_decoder"
2303
2304 # external libraries
2305 libaacplus_encoder_deps="libaacplus"
2306 libcelt_decoder_deps="libcelt"
2307 libfaac_encoder_deps="libfaac"
2308 libfaac_encoder_select="audio_frame_queue"
2309 libfdk_aac_decoder_deps="libfdk_aac"
2310 libfdk_aac_encoder_deps="libfdk_aac"
2311 libfdk_aac_encoder_select="audio_frame_queue"
2312 libgme_demuxer_deps="libgme"
2313 libgsm_decoder_deps="libgsm"
2314 libgsm_encoder_deps="libgsm"
2315 libgsm_ms_decoder_deps="libgsm"
2316 libgsm_ms_encoder_deps="libgsm"
2317 libilbc_decoder_deps="libilbc"
2318 libilbc_encoder_deps="libilbc"
2319 libmodplug_demuxer_deps="libmodplug"
2320 libmp3lame_encoder_deps="libmp3lame"
2321 libmp3lame_encoder_select="audio_frame_queue"
2322 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2323 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2324 libopencore_amrnb_encoder_select="audio_frame_queue"
2325 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2326 libopenjpeg_decoder_deps="libopenjpeg"
2327 libopenjpeg_encoder_deps="libopenjpeg"
2328 libopus_decoder_deps="libopus"
2329 libopus_encoder_deps="libopus"
2330 libopus_encoder_select="audio_frame_queue"
2331 libquvi_demuxer_deps="libquvi"
2332 libschroedinger_decoder_deps="libschroedinger"
2333 libschroedinger_encoder_deps="libschroedinger"
2334 libshine_encoder_deps="libshine"
2335 libshine_encoder_select="audio_frame_queue"
2336 libspeex_decoder_deps="libspeex"
2337 libspeex_encoder_deps="libspeex"
2338 libspeex_encoder_select="audio_frame_queue"
2339 libstagefright_h264_decoder_deps="libstagefright_h264"
2340 libtheora_encoder_deps="libtheora"
2341 libtwolame_encoder_deps="libtwolame"
2342 libvo_aacenc_encoder_deps="libvo_aacenc"
2343 libvo_aacenc_encoder_select="audio_frame_queue"
2344 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2345 libvorbis_decoder_deps="libvorbis"
2346 libvorbis_encoder_deps="libvorbis"
2347 libvorbis_encoder_select="audio_frame_queue"
2348 libvpx_vp8_decoder_deps="libvpx"
2349 libvpx_vp8_encoder_deps="libvpx"
2350 libvpx_vp9_decoder_deps="libvpx"
2351 libvpx_vp9_encoder_deps="libvpx"
2352 libwavpack_encoder_deps="libwavpack"
2353 libwebp_encoder_deps="libwebp"
2354 libx264_encoder_deps="libx264"
2355 libx264rgb_encoder_deps="libx264"
2356 libx265_encoder_deps="libx265"
2357 libxavs_encoder_deps="libxavs"
2358 libxvid_encoder_deps="libxvid"
2359 libutvideo_decoder_deps="libutvideo"
2360 libutvideo_encoder_deps="libutvideo"
2361 libzvbi_teletext_decoder_deps="libzvbi"
2362
2363 # demuxers / muxers
2364 ac3_demuxer_select="ac3_parser"
2365 asf_demuxer_select="riffdec"
2366 asf_muxer_select="riffenc"
2367 asf_stream_muxer_select="asf_muxer"
2368 avi_demuxer_select="riffdec exif"
2369 avi_muxer_select="riffenc"
2370 avisynth_demuxer_deps="avisynth"
2371 avisynth_demuxer_select="riffdec"
2372 caf_demuxer_select="riffdec"
2373 dirac_demuxer_select="dirac_parser"
2374 dts_demuxer_select="dca_parser"
2375 dtshd_demuxer_select="dca_parser"
2376 dv_demuxer_select="dvprofile"
2377 dv_muxer_select="dvprofile"
2378 dxa_demuxer_select="riffdec"
2379 eac3_demuxer_select="ac3_parser"
2380 f4v_muxer_select="mov_muxer"
2381 flac_demuxer_select="flac_parser"
2382 hds_muxer_select="flv_muxer"
2383 hls_muxer_select="mpegts_muxer"
2384 image2_alias_pix_demuxer_select="image2_demuxer"
2385 image2_brender_pix_demuxer_select="image2_demuxer"
2386 ipod_muxer_select="mov_muxer"
2387 ismv_muxer_select="mov_muxer"
2388 libnut_demuxer_deps="libnut"
2389 libnut_muxer_deps="libnut"
2390 matroska_audio_muxer_select="matroska_muxer"
2391 matroska_demuxer_select="riffdec"
2392 matroska_demuxer_suggest="bzlib lzo zlib"
2393 matroska_muxer_select="riffenc"
2394 mmf_muxer_select="riffenc"
2395 mov_demuxer_select="riffdec"
2396 mov_demuxer_suggest="zlib"
2397 mov_muxer_select="riffenc rtpenc_chain"
2398 mp3_demuxer_select="mpegaudio_parser"
2399 mp4_muxer_select="mov_muxer"
2400 mpegts_muxer_select="adts_muxer latm_muxer"
2401 mpegtsraw_demuxer_select="mpegts_demuxer"
2402 mxf_d10_muxer_select="mxf_muxer"
2403 nut_muxer_select="riffenc"
2404 nuv_demuxer_select="riffdec"
2405 ogg_demuxer_select="golomb"
2406 psp_muxer_select="mov_muxer"
2407 rtp_demuxer_select="sdp_demuxer"
2408 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2409 rtsp_demuxer_select="http_protocol rtpdec"
2410 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2411 sap_demuxer_select="sdp_demuxer"
2412 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2413 sdp_demuxer_select="rtpdec"
2414 smoothstreaming_muxer_select="ismv_muxer"
2415 spdif_muxer_select="aac_parser"
2416 tak_demuxer_select="tak_parser"
2417 tg2_muxer_select="mov_muxer"
2418 tgp_muxer_select="mov_muxer"
2419 vobsub_demuxer_select="mpegps_demuxer"
2420 w64_demuxer_select="wav_demuxer"
2421 w64_muxer_select="wav_muxer"
2422 wav_demuxer_select="riffdec"
2423 wav_muxer_select="riffenc"
2424 webm_muxer_select="riffenc"
2425 wtv_demuxer_select="riffdec"
2426 wtv_muxer_select="riffenc"
2427 xmv_demuxer_select="riffdec"
2428 xwma_demuxer_select="riffdec"
2429
2430 # indevs / outdevs
2431 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2432 alsa_outdev_deps="alsa_asoundlib_h"
2433 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2434 avfoundation_indev_select="avfoundation"
2435 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2436 caca_outdev_deps="libcaca"
2437 decklink_outdev_deps="decklink pthreads"
2438 decklink_outdev_extralibs="-lstdc++"
2439 dshow_indev_deps="IBaseFilter"
2440 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2441 dv1394_indev_deps="dv1394"
2442 dv1394_indev_select="dv_demuxer"
2443 fbdev_indev_deps="linux_fb_h"
2444 fbdev_outdev_deps="linux_fb_h"
2445 gdigrab_indev_deps="CreateDIBSection"
2446 gdigrab_indev_extralibs="-lgdi32"
2447 gdigrab_indev_select="bmp_decoder"
2448 iec61883_indev_deps="libiec61883"
2449 jack_indev_deps="jack_jack_h sem_timedwait"
2450 lavfi_indev_deps="avfilter"
2451 libcdio_indev_deps="libcdio"
2452 libdc1394_indev_deps="libdc1394"
2453 libv4l2_indev_deps="libv4l2"
2454 openal_indev_deps="openal"
2455 opengl_outdev_deps="opengl"
2456 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2457 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2458 pulse_indev_deps="libpulse"
2459 pulse_outdev_deps="libpulse"
2460 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2461 qtkit_indev_select="qtkit"
2462 sdl_outdev_deps="sdl"
2463 sndio_indev_deps="sndio_h"
2464 sndio_outdev_deps="sndio_h"
2465 v4l_indev_deps="linux_videodev_h"
2466 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2467 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2468 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2469 vfwcap_indev_extralibs="-lavicap32"
2470 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2471 xv_outdev_extralibs="-lXv -lX11 -lXext"
2472 x11grab_indev_deps="x11grab"
2473
2474 # protocols
2475 bluray_protocol_deps="libbluray"
2476 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2477 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2478 ffrtmpcrypt_protocol_select="tcp_protocol"
2479 ffrtmphttp_protocol_deps="!librtmp_protocol"
2480 ffrtmphttp_protocol_select="http_protocol"
2481 ftp_protocol_select="tcp_protocol"
2482 gopher_protocol_select="network"
2483 http_protocol_select="tcp_protocol"
2484 httpproxy_protocol_select="tcp_protocol"
2485 https_protocol_select="tls_protocol"
2486 librtmp_protocol_deps="librtmp"
2487 librtmpe_protocol_deps="librtmp"
2488 librtmps_protocol_deps="librtmp"
2489 librtmpt_protocol_deps="librtmp"
2490 librtmpte_protocol_deps="librtmp"
2491 libsmbclient_protocol_deps="libsmbclient gplv3"
2492 libssh_protocol_deps="libssh"
2493 mmsh_protocol_select="http_protocol"
2494 mmst_protocol_select="network"
2495 rtmp_protocol_deps="!librtmp_protocol"
2496 rtmp_protocol_select="tcp_protocol"
2497 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2498 rtmps_protocol_deps="!librtmp_protocol"
2499 rtmps_protocol_select="tls_protocol"
2500 rtmpt_protocol_select="ffrtmphttp_protocol"
2501 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2502 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2503 rtp_protocol_select="udp_protocol"
2504 sctp_protocol_deps="struct_sctp_event_subscribe"
2505 sctp_protocol_select="network"
2506 srtp_protocol_select="rtp_protocol"
2507 tcp_protocol_select="network"
2508 tls_protocol_deps_any="openssl gnutls"
2509 tls_protocol_select="tcp_protocol"
2510 udp_protocol_select="network"
2511 unix_protocol_deps="sys_un_h"
2512 unix_protocol_select="network"
2513
2514 # filters
2515 aconvert_filter_deps="swresample"
2516 amovie_filter_deps="avcodec avformat"
2517 aresample_filter_deps="swresample"
2518 ass_filter_deps="libass"
2519 asyncts_filter_deps="avresample"
2520 atempo_filter_deps="avcodec"
2521 atempo_filter_select="rdft"
2522 azmq_filter_deps="libzmq"
2523 blackframe_filter_deps="gpl"
2524 boxblur_filter_deps="gpl"
2525 bs2b_filter_deps="libbs2b"
2526 colormatrix_filter_deps="gpl"
2527 cropdetect_filter_deps="gpl"
2528 dctdnoiz_filter_deps="avcodec"
2529 dctdnoiz_filter_select="dct"
2530 delogo_filter_deps="gpl"
2531 deshake_filter_deps="avcodec"
2532 deshake_filter_select="me_cmp"
2533 drawtext_filter_deps="libfreetype"
2534 ebur128_filter_deps="gpl"
2535 flite_filter_deps="libflite"
2536 frei0r_filter_deps="frei0r dlopen"
2537 frei0r_filter_extralibs='$ldl'
2538 frei0r_src_filter_deps="frei0r dlopen"
2539 frei0r_src_filter_extralibs='$ldl'
2540 geq_filter_deps="gpl"
2541 histeq_filter_deps="gpl"
2542 hqdn3d_filter_deps="gpl"
2543 interlace_filter_deps="gpl"
2544 kerndeint_filter_deps="gpl"
2545 ladspa_filter_deps="ladspa dlopen"
2546 ladspa_filter_extralibs='$ldl'
2547 mcdeint_filter_deps="avcodec gpl"
2548 movie_filter_deps="avcodec avformat"
2549 mp_filter_deps="gpl avcodec swscale inline_asm"
2550 mpdecimate_filter_deps="gpl avcodec"
2551 mpdecimate_filter_select="me_cmp pixblockdsp"
2552 mptestsrc_filter_deps="gpl"
2553 negate_filter_deps="lut_filter"
2554 perspective_filter_deps="gpl"
2555 ocv_filter_deps="libopencv"
2556 owdenoise_filter_deps="gpl"
2557 pan_filter_deps="swresample"
2558 phase_filter_deps="gpl"
2559 pp_filter_deps="gpl postproc"
2560 pullup_filter_deps="gpl"
2561 removelogo_filter_deps="avcodec avformat swscale"
2562 resample_filter_deps="avresample"
2563 sab_filter_deps="gpl swscale"
2564 scale_filter_deps="swscale"
2565 smartblur_filter_deps="gpl swscale"
2566 showspectrum_filter_deps="avcodec"
2567 showspectrum_filter_select="rdft"
2568 spp_filter_deps="gpl avcodec"
2569 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2570 stereo3d_filter_deps="gpl"
2571 subtitles_filter_deps="avformat avcodec libass"
2572 super2xsai_filter_deps="gpl"
2573 tinterlace_filter_deps="gpl"
2574 vidstabdetect_filter_deps="libvidstab"
2575 vidstabtransform_filter_deps="libvidstab"
2576 pixfmts_super2xsai_test_deps="super2xsai_filter"
2577 tinterlace_merge_test_deps="tinterlace_filter"
2578 tinterlace_pad_test_deps="tinterlace_filter"
2579 zmq_filter_deps="libzmq"
2580 zoompan_filter_deps="swscale"
2581
2582 # examples
2583 avio_reading="avformat avcodec avutil"
2584 avcodec_example_deps="avcodec avutil"
2585 demuxing_decoding_example_deps="avcodec avformat avutil"
2586 filter_audio_example_deps="avfilter avutil"
2587 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2588 filtering_video_example_deps="avfilter avcodec avformat avutil"
2589 metadata_example_deps="avformat avutil"
2590 muxing_example_deps="avcodec avformat avutil swscale"
2591 remuxing_example_deps="avcodec avformat avutil"
2592 resampling_audio_example_deps="avutil swresample"
2593 scaling_video_example_deps="avutil swscale"
2594 transcode_aac_example_deps="avcodec avformat swresample"
2595 transcoding_example_deps="avfilter avcodec avformat avutil"
2596
2597 # libraries, in linking order
2598 avcodec_deps="avutil"
2599 avdevice_deps="avformat avcodec avutil"
2600 avfilter_deps="avutil"
2601 avformat_deps="avcodec avutil"
2602 avresample_deps="avutil"
2603 postproc_deps="avutil gpl"
2604 swresample_deps="avutil"
2605 swscale_deps="avutil"
2606
2607 # programs
2608 ffmpeg_deps="avcodec avfilter avformat swresample"
2609 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2610                null_filter
2611                setpts_filter trim_filter"
2612 ffplay_deps="avcodec avformat swscale swresample sdl"
2613 ffplay_libs='$sdl_libs'
2614 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2615 ffprobe_deps="avcodec avformat"
2616 ffserver_deps="avformat fork sarestart"
2617 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2618
2619 # documentation
2620 podpages_deps="perl"
2621 manpages_deps="perl pod2man"
2622 htmlpages_deps="perl texi2html"
2623 txtpages_deps="perl makeinfo"
2624 doc_deps_any="manpages htmlpages podpages txtpages"
2625
2626 # default parameters
2627
2628 logfile="config.log"
2629
2630 # installation paths
2631 prefix_default="/usr/local"
2632 bindir_default='${prefix}/bin'
2633 datadir_default='${prefix}/share/ffmpeg'
2634 docdir_default='${prefix}/share/doc/ffmpeg'
2635 incdir_default='${prefix}/include'
2636 libdir_default='${prefix}/lib'
2637 mandir_default='${prefix}/share/man'
2638 shlibdir_default="$libdir_default"
2639
2640 # toolchain
2641 ar_default="ar"
2642 cc_default="gcc"
2643 cxx_default="g++"
2644 host_cc_default="gcc"
2645 cp_f="cp -f"
2646 doxygen_default="doxygen"
2647 install="install"
2648 ln_s="ln -s -f"
2649 nm_default="nm -g"
2650 objformat="elf"
2651 pkg_config_default=pkg-config
2652 ranlib_default="ranlib"
2653 strip_default="strip"
2654 yasmexe_default="yasm"
2655 windres_default="windres"
2656
2657 nogas=":"
2658
2659 # OS
2660 target_os_default=$(tolower $(uname -s))
2661 host_os=$target_os_default
2662
2663 # machine
2664 if test "$target_os_default" = aix; then
2665     arch_default=$(uname -p)
2666     strip_default="strip -X32_64"
2667 else
2668     arch_default=$(uname -m)
2669 fi
2670 cpu="generic"
2671 intrinsics="none"
2672
2673 # configurable options
2674 enable $PROGRAM_LIST
2675 enable $DOCUMENT_LIST
2676 enable $EXAMPLE_LIST
2677 enable $(filter_out avresample $LIBRARY_LIST)
2678 enable stripping
2679
2680 enable asm
2681 enable debug
2682 enable doc
2683 enable optimizations
2684 enable runtime_cpudetect
2685 enable safe_bitstream_reader
2686 enable static
2687 enable swscale_alpha
2688
2689 sws_max_filter_size_default=256
2690 set_default sws_max_filter_size
2691
2692 # Enable hwaccels by default.
2693 enable dxva2 vaapi vda vdpau xvmc
2694 enable xlib
2695
2696 # build settings
2697 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2698 LIBPREF="lib"
2699 LIBSUF=".a"
2700 FULLNAME='$(NAME)$(BUILDSUF)'
2701 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2702 SLIBPREF="lib"
2703 SLIBSUF=".so"
2704 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2705 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2706 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2707 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2708 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2709 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2710
2711 asflags_filter=echo
2712 cflags_filter=echo
2713 ldflags_filter=echo
2714
2715 AS_C='-c'
2716 AS_O='-o $@'
2717 CC_C='-c'
2718 CC_E='-E -o $@'
2719 CC_O='-o $@'
2720 CXX_C='-c'
2721 CXX_O='-o $@'
2722 LD_O='-o $@'
2723 LD_LIB='-l%'
2724 LD_PATH='-L'
2725 HOSTCC_C='-c'
2726 HOSTCC_E='-E -o $@'
2727 HOSTCC_O='-o $@'
2728 HOSTLD_O='-o $@'
2729
2730 host_libs='-lm'
2731 host_cflags_filter=echo
2732 host_ldflags_filter=echo
2733
2734 target_path='$(CURDIR)'
2735
2736 # since the object filename is not given with the -MM flag, the compiler
2737 # is only able to print the basename, and we must add the path ourselves
2738 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2739 DEPFLAGS='-MM'
2740
2741 # find source path
2742 if test -f configure; then
2743     source_path=.
2744 else
2745     source_path=$(cd $(dirname "$0"); pwd)
2746     echo "$source_path" | grep -q '[[:blank:]]' &&
2747         die "Out of tree builds are impossible with whitespace in source path."
2748     test -e "$source_path/config.h" &&
2749         die "Out of tree builds are impossible with config.h in source dir."
2750 fi
2751
2752 for v in "$@"; do
2753     r=${v#*=}
2754     l=${v%"$r"}
2755     r=$(sh_quote "$r")
2756     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2757 done
2758
2759 find_things(){
2760     thing=$1
2761     pattern=$2
2762     file=$source_path/$3
2763     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2764 }
2765
2766 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2767 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2768 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2769 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2770 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2771 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2772 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2773 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2774 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2775 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2776 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2777
2778 ALL_COMPONENTS="
2779     $BSF_LIST
2780     $DECODER_LIST
2781     $DEMUXER_LIST
2782     $ENCODER_LIST
2783     $FILTER_LIST
2784     $HWACCEL_LIST
2785     $INDEV_LIST
2786     $MUXER_LIST
2787     $OUTDEV_LIST
2788     $PARSER_LIST
2789     $PROTOCOL_LIST
2790 "
2791
2792 for n in $COMPONENT_LIST; do
2793     v=$(toupper ${n%s})_LIST
2794     eval enable \$$v
2795     eval ${n}_if_any="\$$v"
2796 done
2797
2798 enable $ARCH_EXT_LIST
2799
2800 die_unknown(){
2801     echo "Unknown option \"$1\"."
2802     echo "See $0 --help for available options."
2803     exit 1
2804 }
2805
2806 print_3_columns() {
2807     cat | tr ' ' '\n' | sort | pr -r -3 -t
2808 }
2809
2810 show_list() {
2811     suffix=_$1
2812     shift
2813     echo $* | sed s/$suffix//g | print_3_columns
2814     exit 0
2815 }
2816
2817 rand_list(){
2818     IFS=', '
2819     set -- $*
2820     unset IFS
2821     for thing; do
2822         comp=${thing%:*}
2823         prob=${thing#$comp}
2824         prob=${prob#:}
2825         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2826         echo "prob ${prob:-0.5}"
2827         printf '%s\n' $comp
2828     done
2829 }
2830
2831 do_random(){
2832     action=$1
2833     shift
2834     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2835     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2836 }
2837
2838 for opt do
2839     optval="${opt#*=}"
2840     case "$opt" in
2841         --extra-ldflags=*)
2842             add_ldflags $optval
2843         ;;
2844         --extra-ldexeflags=*)
2845             add_ldexeflags $optval
2846         ;;
2847         --extra-libs=*)
2848             add_extralibs $optval
2849         ;;
2850         --disable-devices)
2851             disable $INDEV_LIST $OUTDEV_LIST
2852         ;;
2853         --enable-debug=*)
2854             debuglevel="$optval"
2855         ;;
2856         --disable-programs)
2857             disable $PROGRAM_LIST
2858         ;;
2859         --disable-everything)
2860             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2861         ;;
2862         --disable-all)
2863             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2864             disable $LIBRARY_LIST $PROGRAM_LIST doc
2865         ;;
2866         --enable-random|--disable-random)
2867             action=${opt%%-random}
2868             do_random ${action#--} $COMPONENT_LIST
2869         ;;
2870         --enable-random=*|--disable-random=*)
2871             action=${opt%%-random=*}
2872             do_random ${action#--} $optval
2873         ;;
2874         --enable-*=*|--disable-*=*)
2875             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2876             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2877             eval list=\$$(toupper $thing)_LIST
2878             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2879             list=$(filter "$name" $list)
2880             [ "$list" = "" ] && warn "Option $opt did not match anything"
2881             $action $list
2882         ;;
2883         --enable-?*|--disable-?*)
2884             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2885             if is_in $option $COMPONENT_LIST; then
2886                 test $action = disable && action=unset
2887                 eval $action \$$(toupper ${option%s})_LIST
2888             elif is_in $option $CMDLINE_SELECT; then
2889                 $action $option
2890             else
2891                 die_unknown $opt
2892             fi
2893         ;;
2894         --list-*)
2895             NAME="${opt#--list-}"
2896             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2897             NAME=${NAME%s}
2898             eval show_list $NAME \$$(toupper $NAME)_LIST
2899         ;;
2900         --help|-h) show_help
2901         ;;
2902         --fatal-warnings) enable fatal_warnings
2903         ;;
2904         *)
2905             optname="${opt%%=*}"
2906             optname="${optname#--}"
2907             optname=$(echo "$optname" | sed 's/-/_/g')
2908             if is_in $optname $CMDLINE_SET; then
2909                 eval $optname='$optval'
2910             elif is_in $optname $CMDLINE_APPEND; then
2911                 append $optname "$optval"
2912             else
2913                 die_unknown $opt
2914             fi
2915         ;;
2916     esac
2917 done
2918
2919 disabled logging && logfile=/dev/null
2920
2921 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2922 set >> $logfile
2923
2924 test -n "$cross_prefix" && enable cross_compile
2925
2926 if enabled cross_compile; then
2927     test -n "$arch" && test -n "$target_os" ||
2928         die "Must specify target arch and OS when cross-compiling"
2929 fi
2930
2931 ar_default="${cross_prefix}${ar_default}"
2932 cc_default="${cross_prefix}${cc_default}"
2933 cxx_default="${cross_prefix}${cxx_default}"
2934 nm_default="${cross_prefix}${nm_default}"
2935 pkg_config_default="${cross_prefix}${pkg_config_default}"
2936 ranlib_default="${cross_prefix}${ranlib_default}"
2937 strip_default="${cross_prefix}${strip_default}"
2938 windres_default="${cross_prefix}${windres_default}"
2939
2940 sysinclude_default="${sysroot}/usr/include"
2941
2942 test -n "$valgrind" && toolchain="valgrind-memcheck"
2943
2944 case "$toolchain" in
2945     clang-asan)
2946         cc_default="clang"
2947         add_cflags  -fsanitize=address
2948         add_ldflags -fsanitize=address
2949     ;;
2950     clang-tsan)
2951         cc_default="clang"
2952         add_cflags  -fsanitize=thread -pie
2953         add_ldflags -fsanitize=thread -pie
2954     ;;
2955     clang-usan)
2956         cc_default="clang"
2957         add_cflags  -fsanitize=undefined
2958         add_ldflags -fsanitize=undefined
2959     ;;
2960     gcc-asan)
2961         cc_default="gcc"
2962         add_cflags  -fsanitize=address
2963         add_ldflags -fsanitize=address
2964     ;;
2965     gcc-tsan)
2966         cc_default="gcc"
2967         add_cflags  -fsanitize=thread -pie -fPIC
2968         add_ldflags -fsanitize=thread -pie -fPIC
2969     ;;
2970     gcc-usan)
2971         cc_default="gcc"
2972         add_cflags  -fsanitize=undefined
2973         add_ldflags -fsanitize=undefined
2974     ;;
2975     valgrind-massif)
2976         target_exec_default=${valgrind:-"valgrind"}
2977         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"
2978     ;;
2979     valgrind-memcheck)
2980         target_exec_default=${valgrind:-"valgrind"}
2981         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2982     ;;
2983     msvc)
2984         # Check whether the current MSVC version needs the C99 converter.
2985         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2986         # support enough of C99 to build ffmpeg. Default to the new
2987         # behaviour if the regexp was unable to match anything, since this
2988         # successfully parses the version number of existing supported
2989         # versions that require the converter (MSVC 2010 and 2012).
2990         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2991         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2992             cc_default="cl"
2993         else
2994             cc_default="c99wrap cl"
2995         fi
2996         ld_default="link"
2997         nm_default="dumpbin -symbols"
2998         ar_default="lib"
2999         target_os_default="win32"
3000         # Use a relative path for TMPDIR. This makes sure all the
3001         # ffconf temp files are written with a relative path, avoiding
3002         # issues with msys/win32 path conversion for MSVC parameters
3003         # such as -Fo<file> or -out:<file>.
3004         TMPDIR=.
3005     ;;
3006     icl)
3007         cc_default="icl"
3008         ld_default="xilink"
3009         nm_default="dumpbin -symbols"
3010         ar_default="xilib"
3011         target_os_default="win32"
3012         TMPDIR=.
3013     ;;
3014     gcov)
3015         add_cflags  -fprofile-arcs -ftest-coverage
3016         add_ldflags -fprofile-arcs -ftest-coverage
3017     ;;
3018     hardened)
3019         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
3020         add_ldflags -Wl,-z,relro -Wl,-z,now
3021     ;;
3022     ?*)
3023         die "Unknown toolchain $toolchain"
3024     ;;
3025 esac
3026
3027 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3028     target_exec target_os yasmexe
3029 enabled cross_compile || host_cc_default=$cc
3030 set_default host_cc
3031
3032 if ! $pkg_config --version >/dev/null 2>&1; then
3033     warn "$pkg_config not found, library detection may fail."
3034     pkg_config=false
3035 fi
3036
3037 if test $doxygen != $doxygen_default && \
3038   ! $doxygen --version >/dev/null 2>&1; then
3039     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3040 fi
3041
3042 exesuf() {
3043     case $1 in
3044         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3045     esac
3046 }
3047
3048 EXESUF=$(exesuf $target_os)
3049 HOSTEXESUF=$(exesuf $host_os)
3050
3051 # set temporary file name
3052 : ${TMPDIR:=$TEMPDIR}
3053 : ${TMPDIR:=$TMP}
3054 : ${TMPDIR:=/tmp}
3055
3056 if [ -n "$tempprefix" ] ; then
3057     mktemp(){
3058         echo $tempprefix.${HOSTNAME}.${UID}
3059     }
3060 elif ! check_cmd mktemp -u XXXXXX; then
3061     # simple replacement for missing mktemp
3062     # NOT SAFE FOR GENERAL USE
3063     mktemp(){
3064         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3065     }
3066 fi
3067
3068 tmpfile(){
3069     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3070         (set -C; exec > $tmp) 2>/dev/null ||
3071         die "Unable to create temporary file in $TMPDIR."
3072     append TMPFILES $tmp
3073     eval $1=$tmp
3074 }
3075
3076 trap 'rm -f -- $TMPFILES' EXIT
3077
3078 tmpfile TMPASM .asm
3079 tmpfile TMPC   .c
3080 tmpfile TMPCPP .cpp
3081 tmpfile TMPE   $EXESUF
3082 tmpfile TMPH   .h
3083 tmpfile TMPM   .m
3084 tmpfile TMPO   .o
3085 tmpfile TMPS   .S
3086 tmpfile TMPSH  .sh
3087 tmpfile TMPV   .ver
3088
3089 unset -f mktemp
3090
3091 chmod +x $TMPE
3092
3093 # make sure we can execute files in $TMPDIR
3094 cat > $TMPSH 2>> $logfile <<EOF
3095 #! /bin/sh
3096 EOF
3097 chmod +x $TMPSH >> $logfile 2>&1
3098 if ! $TMPSH >> $logfile 2>&1; then
3099     cat <<EOF
3100 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3101 variable to another directory and make sure that it is not mounted noexec.
3102 EOF
3103     die "Sanity test failed."
3104 fi
3105
3106 ccc_flags(){
3107     for flag; do
3108         case $flag in
3109             -std=c99)           echo -c99                       ;;
3110             -mcpu=*)            echo -arch ${flag#*=}           ;;
3111             -mieee)             echo -ieee                      ;;
3112             -O*|-fast)          echo $flag                      ;;
3113             -fno-math-errno)    echo -assume nomath_errno       ;;
3114             -g)                 echo -g3                        ;;
3115             -Wall)              echo -msg_enable level2         ;;
3116             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3117             -Wl,*)              echo $flag                      ;;
3118             -f*|-W*)                                            ;;
3119             *)                  echo $flag                      ;;
3120         esac
3121    done
3122 }
3123
3124 cparser_flags(){
3125     for flag; do
3126         case $flag in
3127             -Wno-switch)             echo -Wno-switch-enum ;;
3128             -Wno-format-zero-length) ;;
3129             -Wdisabled-optimization) ;;
3130             -Wno-pointer-sign)       echo -Wno-other ;;
3131             *)                       echo $flag ;;
3132         esac
3133     done
3134 }
3135
3136 msvc_common_flags(){
3137     for flag; do
3138         case $flag in
3139             # In addition to specifying certain flags under the compiler
3140             # specific filters, they must be specified here as well or else the
3141             # generic catch all at the bottom will print the original flag.
3142             -Wall)                ;;
3143             -std=c99)             ;;
3144             # Common flags
3145             -fomit-frame-pointer) ;;
3146             -g)                   echo -Z7 ;;
3147             -fno-math-errno)      ;;
3148             -fno-common)          ;;
3149             -fno-signed-zeros)    ;;
3150             -fPIC)                ;;
3151             -mthumb)              ;;
3152             -march=*)             ;;
3153             -lz)                  echo zlib.lib ;;
3154             -lavifil32)           echo vfw32.lib ;;
3155             -lavicap32)           echo vfw32.lib user32.lib ;;
3156             -l*)                  echo ${flag#-l}.lib ;;
3157             *)                    echo $flag ;;
3158         esac
3159     done
3160 }
3161
3162 msvc_flags(){
3163     msvc_common_flags "$@"
3164     for flag; do
3165         case $flag in
3166             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3167                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3168                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3169                                        -wd4554 \
3170                                        -wd4273 ;;
3171         esac
3172     done
3173 }
3174
3175 icl_flags(){
3176     msvc_common_flags "$@"
3177     for flag; do
3178         case $flag in
3179             # Despite what Intel's documentation says -Wall, which is supported
3180             # on Windows, does enable remarks so disable them here.
3181             -Wall)                echo $flag -Qdiag-disable:remark ;;
3182             -std=c99)             echo -Qstd=c99 ;;
3183             -flto)                echo -ipo ;;
3184         esac
3185     done
3186 }
3187
3188 icc_flags(){
3189     for flag; do
3190         case $flag in
3191             -flto)                echo -ipo ;;
3192             *)                    echo $flag ;;
3193         esac
3194     done
3195 }
3196
3197 pgi_flags(){
3198     for flag; do
3199         case $flag in
3200             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3201             -fomit-frame-pointer) echo -Mnoframe ;;
3202             -g)                   echo -gopt ;;
3203             *)                    echo $flag ;;
3204         esac
3205     done
3206 }
3207
3208 suncc_flags(){
3209     for flag; do
3210         case $flag in
3211             -march=*|-mcpu=*)
3212                 case "${flag#*=}" in
3213                     native)                   echo -xtarget=native       ;;
3214                     v9|niagara)               echo -xarch=sparc          ;;
3215                     ultrasparc)               echo -xarch=sparcvis       ;;
3216                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3217                     i586|pentium)             echo -xchip=pentium        ;;
3218                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3219                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3220                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3221                     pentium4*)          echo -xtarget=pentium4           ;;
3222                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3223                     *-sse3)             echo -xarch=sse3                 ;;
3224                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3225                     bonnell)                   echo -xarch=ssse3         ;;
3226                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3227                     westmere)                  echo -xtarget=westmere    ;;
3228                     silvermont)                echo -xarch=sse4_2        ;;
3229                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3230                     core-avx*|ivybridge|haswell|broadwell)
3231                                                echo -xarch=avx           ;;
3232                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3233                     btver1)                    echo -xarch=amdsse4a      ;;
3234                     btver2|bdver*)             echo -xarch=avx           ;;
3235                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3236                     k8|opteron|athlon64|athlon-fx)
3237                                                echo -xarch=sse2a         ;;
3238                     athlon*)                   echo -xarch=pentium_proa  ;;
3239                 esac
3240                 ;;
3241             -std=c99)             echo -xc99              ;;
3242             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3243             -fPIC)                echo -KPIC -xcode=pic32 ;;
3244             -W*,*)                echo $flag              ;;
3245             -f*-*|-W*|-mimpure-text)                      ;;
3246             -shared)              echo -G                 ;;
3247             *)                    echo $flag              ;;
3248         esac
3249     done
3250 }
3251
3252 tms470_flags(){
3253     for flag; do
3254         case $flag in
3255             -march=*|-mcpu=*)
3256                 case "${flag#*=}" in
3257                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3258                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3259                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3260                     armv6*|arm11*)          echo -mv=6   ;;
3261                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3262                                             echo -mv=5e  ;;
3263                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3264                 esac
3265                 ;;
3266             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3267             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3268             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3269             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3270             -msoft-float)   echo --float_support=vfplib       ;;
3271             -O[0-3]|-mf=*)  echo $flag                        ;;
3272             -g)             echo -g -mn                       ;;
3273             -pds=*)         echo $flag                        ;;
3274             -D*|-I*)        echo $flag                        ;;
3275             --gcc|--abi=*)  echo $flag                        ;;
3276             -me)            echo $flag                        ;;
3277         esac
3278     done
3279 }
3280
3281 probe_cc(){
3282     pfx=$1
3283     _cc=$2
3284
3285     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3286     unset _ld_o _ldflags _ld_lib _ld_path
3287     unset _depflags _DEPCMD _DEPFLAGS
3288     _flags_filter=echo
3289
3290     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3291         true # no-op to avoid reading stdin in following checks
3292     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3293         _type=llvm_gcc
3294         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3295         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3296         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3297         _cflags_speed='-O3'
3298         _cflags_size='-Os'
3299     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3300         _type=gcc
3301         gcc_version=$($_cc --version | head -n1)
3302         gcc_basever=$($_cc -dumpversion)
3303         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3304         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3305         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3306         if ! $_cc -dumpversion | grep -q '^2\.'; then
3307             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3308         fi
3309         _cflags_speed='-O3'
3310         _cflags_size='-Os'
3311     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3312         _type=icc
3313         _ident=$($_cc --version | head -n1)
3314         _depflags='-MMD'
3315         _cflags_speed='-O3'
3316         _cflags_size='-Os'
3317         _cflags_noopt='-O1'
3318         _flags_filter=icc_flags
3319     elif $_cc -v 2>&1 | grep -q xlc; then
3320         _type=xlc
3321         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3322         _cflags_speed='-O5'
3323         _cflags_size='-O5 -qcompact'
3324     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3325         _type=ccc
3326         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3327         _DEPFLAGS='-M'
3328         _cflags_speed='-fast'
3329         _cflags_size='-O1'
3330         _flags_filter=ccc_flags
3331     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3332         test -d "$sysroot" || die "No valid sysroot specified."
3333         _type=armcc
3334         _ident=$($_cc --vsn | head -n1 | sed 's/.*: //')
3335         armcc_conf="$PWD/armcc.conf"
3336         $_cc --arm_linux_configure                 \
3337              --arm_linux_config_file="$armcc_conf" \
3338              --configure_sysroot="$sysroot"        \
3339              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3340              die "Error creating armcc configuration file."
3341         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3342         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3343         as_default="${cross_prefix}gcc"
3344         _depflags='-MMD'
3345         _cflags_speed='-O3'
3346         _cflags_size='-Os'
3347     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3348         _type=tms470
3349         _ident=$($_cc -version | head -n1 | tr -s ' ')
3350         _flags='--gcc --abi=eabi -me'
3351         _cc_e='-ppl -fe=$@'
3352         _cc_o='-fe=$@'
3353         _depflags='-ppa -ppd=$(@:.o=.d)'
3354         _cflags_speed='-O3 -mf=5'
3355         _cflags_size='-O3 -mf=2'
3356         _flags_filter=tms470_flags
3357     elif $_cc -v 2>&1 | grep -q clang; then
3358         _type=clang
3359         _ident=$($_cc --version | head -n1)
3360         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3361         _cflags_speed='-O3'
3362         _cflags_size='-Os'
3363     elif $_cc -V 2>&1 | grep -q Sun; then
3364         _type=suncc
3365         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3366         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3367         _DEPFLAGS='-xM1 -xc99'
3368         _ldflags='-std=c99'
3369         _cflags_speed='-O5'
3370         _cflags_size='-O5 -xspace'
3371         _flags_filter=suncc_flags
3372     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3373         _type=pathscale
3374         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3375         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3376         _cflags_speed='-O2'
3377         _cflags_size='-Os'
3378         _flags_filter='filter_out -Wdisabled-optimization'
3379     elif $_cc -v 2>&1 | grep -q Open64; then
3380         _type=open64
3381         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3382         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3383         _cflags_speed='-O2'
3384         _cflags_size='-Os'
3385         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3386     elif $_cc -V 2>&1 | grep -q Portland; then
3387         _type=pgi
3388         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3389         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3390         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3391         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3392         _cflags_noopt="-O"
3393         _flags_filter=pgi_flags
3394     elif $_cc 2>&1 | grep -q Microsoft; then
3395         _type=msvc
3396         _ident=$($cc 2>&1 | head -n1)
3397         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3398         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3399         _cflags_speed="-O2"
3400         _cflags_size="-O1"
3401         if $_cc 2>&1 | grep -q Linker; then
3402             _ld_o='-out:$@'
3403         else
3404             _ld_o='-Fe$@'
3405         fi
3406         _cc_o='-Fo$@'
3407         _cc_e='-P -Fi$@'
3408         _flags_filter=msvc_flags
3409         _ld_lib='lib%.a'
3410         _ld_path='-libpath:'
3411         _flags='-nologo'
3412         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3413         if [ $pfx = hostcc ]; then
3414             append _cflags -Dsnprintf=_snprintf
3415         fi
3416         disable stripping
3417     elif $_cc 2>&1 | grep -q Intel; then
3418         _type=icl
3419         _ident=$($cc 2>&1 | head -n1)
3420         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3421         # Not only is O3 broken on 13.x+ but it is slower on all previous
3422         # versions (tested) as well.
3423         _cflags_speed="-O2"
3424         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3425         if $_cc 2>&1 | grep -q Linker; then
3426             _ld_o='-out:$@'
3427         else
3428             _ld_o='-Fe$@'
3429         fi
3430         _cc_o='-Fo$@'
3431         _cc_e='-P'
3432         _flags_filter=icl_flags
3433         _ld_lib='lib%.a'
3434         _ld_path='-libpath:'
3435         # -Qdiag-error to make icl error when seeing certain unknown arguments
3436         _flags='-nologo -Qdiag-error:4044,10157'
3437         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3438         # with MSVC which enables it by default.
3439         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3440         if [ $pfx = hostcc ]; then
3441             append _cflags -Dsnprintf=_snprintf
3442         fi
3443     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3444         _type=cparser
3445         _ident=$($_cc --version | head -n1)
3446         _depflags='-MMD'
3447         _cflags_speed='-O4'
3448         _cflags_size='-O2'
3449         _flags_filter=cparser_flags
3450     fi
3451
3452     eval ${pfx}_type=\$_type
3453     eval ${pfx}_ident=\$_ident
3454 }
3455
3456 set_ccvars(){
3457     eval ${1}_C=\${_cc_c-\${${1}_C}}
3458     eval ${1}_E=\${_cc_e-\${${1}_E}}
3459     eval ${1}_O=\${_cc_o-\${${1}_O}}
3460
3461     if [ -n "$_depflags" ]; then
3462         eval ${1}_DEPFLAGS=\$_depflags
3463     else
3464         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3465         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3466         eval DEP${1}FLAGS=\$_flags
3467     fi
3468 }
3469
3470 probe_cc cc "$cc"
3471 cflags_filter=$_flags_filter
3472 cflags_speed=$_cflags_speed
3473 cflags_size=$_cflags_size
3474 cflags_noopt=$_cflags_noopt
3475 add_cflags $_flags $_cflags
3476 cc_ldflags=$_ldflags
3477 set_ccvars CC
3478
3479 probe_cc hostcc "$host_cc"
3480 host_cflags_filter=$_flags_filter
3481 add_host_cflags  $_flags $_cflags
3482 set_ccvars HOSTCC
3483
3484 test -n "$cc_type" && enable $cc_type ||
3485     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3486
3487 : ${as_default:=$cc}
3488 : ${dep_cc_default:=$cc}
3489 : ${ld_default:=$cc}
3490 : ${host_ld_default:=$host_cc}
3491 set_default ar as dep_cc ld host_ld windres
3492
3493 probe_cc as "$as"
3494 asflags_filter=$_flags_filter
3495 add_asflags $_flags $_cflags
3496 set_ccvars AS
3497
3498 probe_cc ld "$ld"
3499 ldflags_filter=$_flags_filter
3500 add_ldflags $_flags $_ldflags
3501 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3502 LD_O=${_ld_o-$LD_O}
3503 LD_LIB=${_ld_lib-$LD_LIB}
3504 LD_PATH=${_ld_path-$LD_PATH}
3505
3506 probe_cc hostld "$host_ld"
3507 host_ldflags_filter=$_flags_filter
3508 add_host_ldflags $_flags $_ldflags
3509 HOSTLD_O=${_ld_o-$HOSTLD_O}
3510
3511 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3512     probe_cc depcc "$dep_cc"
3513     CCDEP=${_DEPCMD:-$DEPCMD}
3514     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3515     DEPCCFLAGS=$_flags
3516 fi
3517
3518 if $ar 2>&1 | grep -q Microsoft; then
3519     arflags="-nologo"
3520     ar_o='-out:$@'
3521 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3522     arflags="rq"
3523     ar_o='$@'
3524 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3525     arflags='-Xany -r -c'
3526     ar_o='$@'
3527 else
3528     arflags="rc"
3529     ar_o='$@'
3530 fi
3531
3532 add_cflags $extra_cflags
3533 add_cxxflags $extra_cxxflags
3534 add_asflags $extra_cflags
3535
3536 if test -n "$sysroot"; then
3537     case "$cc_type" in
3538         gcc|llvm_gcc|clang)
3539             add_cppflags --sysroot="$sysroot"
3540             add_ldflags --sysroot="$sysroot"
3541 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3542             add_cppflags -isysroot "$sysroot"
3543             add_ldflags -isysroot "$sysroot"
3544         ;;
3545         tms470)
3546             add_cppflags -I"$sysinclude"
3547             add_ldflags  --sysroot="$sysroot"
3548         ;;
3549     esac
3550 fi
3551
3552 if test "$cpu" = host; then
3553     enabled cross_compile &&
3554         die "--cpu=host makes no sense when cross-compiling."
3555
3556     case "$cc_type" in
3557         gcc|llvm_gcc)
3558             check_native(){
3559                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3560                 sed -n "/cc1.*$1=/{
3561                             s/.*$1=\\([^ ]*\\).*/\\1/
3562                             p
3563                             q
3564                         }" $TMPE
3565             }
3566             cpu=$(check_native -march || check_native -mcpu)
3567         ;;
3568     esac
3569
3570     test "${cpu:-host}" = host &&
3571         die "--cpu=host not supported with compiler $cc"
3572 fi
3573
3574 # Deal with common $arch aliases
3575 case "$arch" in
3576     aarch64|arm64)
3577         arch="aarch64"
3578     ;;
3579     arm*|iPad*|iPhone*)
3580         arch="arm"
3581     ;;
3582     mips*|IP*)
3583         arch="mips"
3584     ;;
3585     parisc*|hppa*)
3586         arch="parisc"
3587     ;;
3588     "Power Macintosh"|ppc*|powerpc*)
3589         arch="ppc"
3590     ;;
3591     s390|s390x)
3592         arch="s390"
3593     ;;
3594     sh4|sh)
3595         arch="sh4"
3596     ;;
3597     sun4u|sparc*)
3598         arch="sparc"
3599     ;;
3600     tilegx|tile-gx)
3601         arch="tilegx"
3602     ;;
3603     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3604         arch="x86"
3605     ;;
3606 esac
3607
3608 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3609 enable $arch
3610
3611 # Add processor-specific flags
3612 if enabled aarch64; then
3613
3614     case $cpu in
3615         armv*)
3616             cpuflags="-march=$cpu"
3617         ;;
3618         *)
3619             cpuflags="-mcpu=$cpu"
3620         ;;
3621     esac
3622
3623 elif enabled alpha; then
3624
3625     cpuflags="-mcpu=$cpu"
3626
3627 elif enabled arm; then
3628
3629     check_arm_arch() {
3630         check_cpp_condition stddef.h \
3631             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3632             $cpuflags
3633     }
3634
3635     probe_arm_arch() {
3636         if   check_arm_arch 4;        then echo armv4;
3637         elif check_arm_arch 4T;       then echo armv4t;
3638         elif check_arm_arch 5;        then echo armv5;
3639         elif check_arm_arch 5E;       then echo armv5e;
3640         elif check_arm_arch 5T;       then echo armv5t;
3641         elif check_arm_arch 5TE;      then echo armv5te;
3642         elif check_arm_arch 5TEJ;     then echo armv5te;
3643         elif check_arm_arch 6;        then echo armv6;
3644         elif check_arm_arch 6J;       then echo armv6j;
3645         elif check_arm_arch 6K;       then echo armv6k;
3646         elif check_arm_arch 6Z;       then echo armv6z;
3647         elif check_arm_arch 6ZK;      then echo armv6zk;
3648         elif check_arm_arch 6T2;      then echo armv6t2;
3649         elif check_arm_arch 7;        then echo armv7;
3650         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3651         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3652         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3653         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3654         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3655         fi
3656     }
3657
3658     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3659
3660     case $cpu in
3661         armv*)
3662             cpuflags="-march=$cpu"
3663             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3664         ;;
3665         *)
3666             cpuflags="-mcpu=$cpu"
3667             case $cpu in
3668                 cortex-a*)                               subarch=armv7a  ;;
3669                 cortex-r*)                               subarch=armv7r  ;;
3670                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3671                 arm11*)                                  subarch=armv6   ;;
3672                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3673                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3674                 *)                             subarch=$(probe_arm_arch) ;;
3675             esac
3676         ;;
3677     esac
3678
3679     case "$subarch" in
3680         armv5t*)    enable fast_clz                ;;
3681         armv[6-8]*)
3682             enable fast_clz
3683             disabled fast_unaligned || enable fast_unaligned
3684             ;;
3685     esac
3686
3687 elif enabled avr32; then
3688
3689     case $cpu in
3690         ap7[02]0[0-2])
3691             subarch="avr32_ap"
3692             cpuflags="-mpart=$cpu"
3693         ;;
3694         ap)
3695             subarch="avr32_ap"
3696             cpuflags="-march=$cpu"
3697         ;;
3698         uc3[ab]*)
3699             subarch="avr32_uc"
3700             cpuflags="-mcpu=$cpu"
3701         ;;
3702         uc)
3703             subarch="avr32_uc"
3704             cpuflags="-march=$cpu"
3705         ;;
3706     esac
3707
3708 elif enabled bfin; then
3709
3710     cpuflags="-mcpu=$cpu"
3711
3712 elif enabled mips; then
3713
3714     cpuflags="-march=$cpu"
3715
3716     case $cpu in
3717         24kc)
3718             disable mipsfpu
3719             disable mipsdspr1
3720             disable mipsdspr2
3721         ;;
3722         24kf*)
3723             disable mipsdspr1
3724             disable mipsdspr2
3725         ;;
3726         24kec|34kc|1004kc)
3727             disable mipsfpu
3728             disable mipsdspr2
3729         ;;
3730         24kef*|34kf*|1004kf*)
3731             disable mipsdspr2
3732         ;;
3733         74kc)
3734             disable mipsfpu
3735         ;;
3736     esac
3737
3738 elif enabled ppc; then
3739
3740     disable ldbrx
3741     disable vsx
3742
3743     case $(tolower $cpu) in
3744         601|ppc601|powerpc601)
3745             cpuflags="-mcpu=601"
3746             disable altivec
3747         ;;
3748         603*|ppc603*|powerpc603*)
3749             cpuflags="-mcpu=603"
3750             disable altivec
3751         ;;
3752         604*|ppc604*|powerpc604*)
3753             cpuflags="-mcpu=604"
3754             disable altivec
3755         ;;
3756         g3|75*|ppc75*|powerpc75*)
3757             cpuflags="-mcpu=750"
3758             disable altivec
3759         ;;
3760         g4|745*|ppc745*|powerpc745*)
3761             cpuflags="-mcpu=7450"
3762         ;;
3763         74*|ppc74*|powerpc74*)
3764             cpuflags="-mcpu=7400"
3765         ;;
3766         g5|970|ppc970|powerpc970)
3767             cpuflags="-mcpu=970"
3768         ;;
3769         power[3-8]*)
3770             cpuflags="-mcpu=$cpu"
3771         ;;
3772         cell)
3773             cpuflags="-mcpu=cell"
3774             enable ldbrx
3775         ;;
3776         e500mc)
3777             cpuflags="-mcpu=e500mc"
3778             disable altivec
3779         ;;
3780         e500v2)
3781             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3782             disable altivec
3783             disable dcbzl
3784         ;;
3785         e500)
3786             cpuflags="-mcpu=8540 -mhard-float"
3787             disable altivec
3788             disable dcbzl
3789         ;;
3790     esac
3791
3792 elif enabled sparc; then
3793
3794     case $cpu in
3795         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3796             cpuflags="-mcpu=$cpu"
3797         ;;
3798         ultrasparc*|niagara[234])
3799             cpuflags="-mcpu=$cpu"
3800         ;;
3801     esac
3802
3803 elif enabled x86; then
3804
3805     case $cpu in
3806         i[345]86|pentium)
3807             cpuflags="-march=$cpu"
3808             disable mmx
3809         ;;
3810         # targets that do NOT support nopl and conditional mov (cmov)
3811         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3812             cpuflags="-march=$cpu"
3813             disable i686
3814         ;;
3815         # targets that do support nopl and conditional mov (cmov)
3816         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3817         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3818             cpuflags="-march=$cpu"
3819             enable i686
3820             enable fast_cmov
3821         ;;
3822         # targets that do support conditional mov but on which it's slow
3823         pentium4|pentium4m|prescott|nocona)
3824             cpuflags="-march=$cpu"
3825             enable i686
3826             disable fast_cmov
3827         ;;
3828     esac
3829
3830 fi
3831
3832 if [ "$cpu" != generic ]; then
3833     add_cflags  $cpuflags
3834     add_asflags $cpuflags
3835 fi
3836
3837 # compiler sanity check
3838 check_exec <<EOF
3839 int main(void){ return 0; }
3840 EOF
3841 if test "$?" != 0; then
3842     echo "$cc is unable to create an executable file."
3843     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3844         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3845         echo "Only do this if you know what cross compiling means."
3846     fi
3847     die "C compiler test failed."
3848 fi
3849
3850 add_cppflags -D_ISOC99_SOURCE
3851 add_cxxflags -D__STDC_CONSTANT_MACROS
3852 check_cflags -std=c99
3853 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3854 #include <stdlib.h>
3855 EOF
3856 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3857 #include <stdlib.h>
3858 EOF
3859
3860 add_host_cppflags -D_ISOC99_SOURCE
3861 check_host_cflags -std=c99
3862 check_host_cflags -Wall
3863 check_host_cflags -O3
3864
3865 check_64bit(){
3866     arch32=$1
3867     arch64=$2
3868     expr=$3
3869     check_code cc "" "int test[2*($expr) - 1]" &&
3870         subarch=$arch64 || subarch=$arch32
3871 }
3872
3873 case "$arch" in
3874     aarch64|alpha|ia64)
3875         spic=$shared
3876     ;;
3877     mips)
3878         check_64bit mips mips64 '_MIPS_SIM > 1'
3879         spic=$shared
3880     ;;
3881     parisc)
3882         check_64bit parisc parisc64 'sizeof(void *) > 4'
3883         spic=$shared
3884     ;;
3885     ppc)
3886         check_64bit ppc ppc64 'sizeof(void *) > 4'
3887         spic=$shared
3888     ;;
3889     s390)
3890         check_64bit s390 s390x 'sizeof(void *) > 4'
3891         spic=$shared
3892     ;;
3893     sparc)
3894         check_64bit sparc sparc64 'sizeof(void *) > 4'
3895         spic=$shared
3896     ;;
3897     x86)
3898         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3899         if test "$subarch" = "x86_64"; then
3900             spic=$shared
3901         fi
3902     ;;
3903     ppc)
3904         check_cc <<EOF && subarch="ppc64"
3905         int test[(int)sizeof(char*) - 7];
3906 EOF
3907     ;;
3908 esac
3909
3910 enable $subarch
3911 enabled spic && enable_weak pic
3912
3913 # OS specific
3914 case $target_os in
3915     aix)
3916         SHFLAGS=-shared
3917         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3918         enabled shared && add_ldflags -Wl,-brtl
3919         ;;
3920     android)
3921         disable symver
3922         SLIB_INSTALL_NAME='$(SLIBNAME)'
3923         SLIB_INSTALL_LINKS=
3924         # soname not set on purpose
3925         SHFLAGS=-shared
3926         ;;
3927     haiku)
3928         prefix_default="/boot/common"
3929         network_extralibs="-lnetwork"
3930         host_libs=
3931         ;;
3932     sunos)
3933         SHFLAGS='-shared -Wl,-h,$$(@F)'
3934         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3935         network_extralibs="-lsocket -lnsl"
3936         # When using suncc to build, the Solaris linker will mark
3937         # an executable with each instruction set encountered by
3938         # the Solaris assembler.  As our libraries contain their own
3939         # guards for processor-specific code, instead suppress
3940         # generation of the HWCAPS ELF section on Solaris x86 only.
3941         enabled_all suncc x86 &&
3942             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3943             add_ldflags -Wl,-M,mapfile
3944         nm_default='nm -P -g'
3945         ;;
3946     netbsd)
3947         disable symver
3948         oss_indev_extralibs="-lossaudio"
3949         oss_outdev_extralibs="-lossaudio"
3950         enabled gcc || check_ldflags -Wl,-zmuldefs
3951         ;;
3952     openbsd|bitrig)
3953         disable symver
3954         SHFLAGS='-shared'
3955         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3956         SLIB_INSTALL_LINKS=
3957         oss_indev_extralibs="-lossaudio"
3958         oss_outdev_extralibs="-lossaudio"
3959         ;;
3960     dragonfly)
3961         disable symver
3962         ;;
3963     freebsd)
3964         ;;
3965     bsd/os)
3966         add_extralibs -lpoll -lgnugetopt
3967         strip="strip -d"
3968         ;;
3969     darwin)
3970         test "${as#*gas-preprocessor.pl}" != "$as" || gas="${gas:=gas-preprocessor.pl} ${as:=$cc}"
3971         enabled ppc && add_asflags -force_cpusubtype_ALL
3972         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3973         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3974         strip="${strip} -x"
3975         add_ldflags -Wl,-dynamic,-search_paths_first
3976         SLIBSUF=".dylib"
3977         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3978         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3979         objformat="macho"
3980         enabled x86_64 && objformat="macho64"
3981         enabled_any pic shared ||
3982             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3983         ;;
3984     mingw32*)
3985         if test $target_os = "mingw32ce"; then
3986             disable network
3987         else
3988             target_os=mingw32
3989         fi
3990         LIBTARGET=i386
3991         if enabled x86_64; then
3992             LIBTARGET="i386:x86-64"
3993         elif enabled arm; then
3994             LIBTARGET=arm-wince
3995         fi
3996         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3997         check_ldflags -Wl,--nxcompat
3998         check_ldflags -Wl,--dynamicbase
3999         shlibdir_default="$bindir_default"
4000         SLIBPREF=""
4001         SLIBSUF=".dll"
4002         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4003         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4004         dlltool="${cross_prefix}dlltool"
4005         if check_cmd lib.exe -list; then
4006             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4007             if enabled x86_64; then
4008                 LIBTARGET=x64
4009             fi
4010         elif check_cmd $dlltool --version; then
4011             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4012         fi
4013         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4014         SLIB_INSTALL_LINKS=
4015         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4016         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4017         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4018         objformat="win32"
4019         ranlib=:
4020         enable dos_paths
4021         ;;
4022     win32|win64)
4023         disable symver
4024         if enabled shared; then
4025             # Link to the import library instead of the normal static library
4026             # for shared libs.
4027             LD_LIB='%.lib'
4028             # Cannot build both shared and static libs with MSVC or icl.
4029             disable static
4030         fi
4031         shlibdir_default="$bindir_default"
4032         SLIBPREF=""
4033         SLIBSUF=".dll"
4034         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4035         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4036         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4037         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4038         SLIB_INSTALL_LINKS=
4039         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4040         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4041         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4042         objformat="win32"
4043         ranlib=:
4044         enable dos_paths
4045         ;;
4046     cygwin*)
4047         target_os=cygwin
4048         shlibdir_default="$bindir_default"
4049         SLIBPREF="cyg"
4050         SLIBSUF=".dll"
4051         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4052         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4053         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4054         SLIB_INSTALL_LINKS=
4055         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4056         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4057         objformat="win32"
4058         enable dos_paths
4059         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4060         ;;
4061     *-dos|freedos|opendos)
4062         network_extralibs="-lsocket"
4063         objformat="coff"
4064         enable dos_paths
4065         add_cppflags -U__STRICT_ANSI__
4066         ;;
4067     linux)
4068         enable dv1394
4069         ;;
4070     irix*)
4071         target_os=irix
4072         ranlib="echo ignoring ranlib"
4073         ;;
4074     os/2*)
4075         strip="lxlite -CS"
4076         ln_s="cp -f"
4077         objformat="aout"
4078         add_cppflags -D_GNU_SOURCE
4079         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4080         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4081         LIBSUF="_s.a"
4082         SLIBPREF=""
4083         SLIBSUF=".dll"
4084         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4085         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4086         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4087             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4088             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4089             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4090             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4091             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4092         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4093             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4094         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4095         enable dos_paths
4096         enable_weak os2threads
4097         ;;
4098     gnu/kfreebsd)
4099         add_cppflags -D_BSD_SOURCE
4100         ;;
4101     gnu)
4102         ;;
4103     qnx)
4104         add_cppflags -D_QNX_SOURCE
4105         network_extralibs="-lsocket"
4106         ;;
4107     symbian)
4108         SLIBSUF=".dll"
4109         enable dos_paths
4110         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4111         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4112         add_ldflags -Wl,--target1-abs,--no-undefined \
4113                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4114                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4115         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4116                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4117                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4118         ;;
4119     osf1)
4120         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4121         ;;
4122     minix)
4123         ;;
4124     plan9)
4125         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4126                      -D_REENTRANT_SOURCE        \
4127                      -D_RESEARCH_SOURCE         \
4128                      -DFD_SETSIZE=96            \
4129                      -DHAVE_SOCK_OPTS
4130         add_compat strtod.o strtod=avpriv_strtod
4131         network_extralibs='-lbsd'
4132         exeobjs=compat/plan9/main.o
4133         disable ffserver
4134         cp_f='cp'
4135         ;;
4136     none)
4137         ;;
4138     *)
4139         die "Unknown OS '$target_os'."
4140         ;;
4141 esac
4142
4143 # determine libc flavour
4144
4145 probe_libc(){
4146     pfx=$1
4147     pfx_no_=${pfx%_}
4148     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4149     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4150         eval ${pfx}libc_type=uclibc
4151         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4152     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4153         eval ${pfx}libc_type=glibc
4154         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4155     # MinGW headers can be installed on Cygwin, so check for newlib first.
4156     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4157         eval ${pfx}libc_type=newlib
4158         add_${pfx}cppflags -U__STRICT_ANSI__
4159     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4160     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4161         eval ${pfx}libc_type=mingw64
4162         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4163             add_compat msvcrt/snprintf.o
4164             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4165         fi
4166         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4167         eval test \$${pfx_no_}cc_type = "gcc" &&
4168             add_${pfx}cppflags -D__printf__=__gnu_printf__
4169     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4170          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4171         eval ${pfx}libc_type=mingw32
4172         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4173             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4174             die "ERROR: MinGW32 runtime version must be >= 3.15."
4175         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4176         eval test \$${pfx_no_}cc_type = "gcc" &&
4177             add_${pfx}cppflags -D__printf__=__gnu_printf__
4178     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4179         eval ${pfx}libc_type=msvcrt
4180         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4181         # 0x601 by default unless something else is set by the user.
4182         # This can easily lead to us detecting functions only present
4183         # in such new versions and producing binaries requiring windows 7.0.
4184         # Therefore explicitly set the default to XP unless the user has
4185         # set something else on the command line.
4186         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4187             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4188     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4189         eval ${pfx}libc_type=klibc
4190     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4191         eval ${pfx}libc_type=bionic
4192     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4193         eval ${pfx}libc_type=solaris
4194         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4195     fi
4196 }
4197
4198 probe_libc
4199 test -n "$libc_type" && enable libc_$libc_type
4200 probe_libc host_
4201 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4202
4203 case $libc_type in
4204     bionic)
4205         add_compat strtod.o strtod=avpriv_strtod
4206         ;;
4207     msvcrt)
4208         add_compat strtod.o strtod=avpriv_strtod
4209         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4210                                      _snprintf=avpriv_snprintf  \
4211                                      vsnprintf=avpriv_vsnprintf
4212         ;;
4213 esac
4214
4215 # hacks for compiler/libc/os combinations
4216
4217 if enabled_all tms470 libc_glibc; then
4218     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4219     add_cppflags -D__USER_LABEL_PREFIX__=
4220     add_cppflags -D__builtin_memset=memset
4221     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4222     add_cflags   -pds=48    # incompatible redefinition of macro
4223 fi
4224
4225 if enabled_all ccc libc_glibc; then
4226     add_ldflags -Wl,-z,now  # calls to libots crash without this
4227 fi
4228
4229 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4230     add_cppflags '-I\$(SRC_PATH)/compat/float'
4231
4232 esc(){
4233     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4234 }
4235
4236 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4237
4238 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4239
4240 set_default $PATHS_LIST
4241 set_default nm
4242
4243 # we need to build at least one lib type
4244 if ! enabled_any static shared; then
4245     cat <<EOF
4246 At least one library type must be built.
4247 Specify --enable-static to build the static libraries or --enable-shared to
4248 build the shared libraries as well. To only build the shared libraries specify
4249 --disable-static in addition to --enable-shared.
4250 EOF
4251     exit 1;
4252 fi
4253
4254 die_license_disabled() {
4255     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4256 }
4257
4258 die_license_disabled_gpl() {
4259     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4260 }
4261
4262 die_license_disabled gpl frei0r
4263 die_license_disabled gpl libcdio
4264 die_license_disabled gpl libsmbclient
4265 die_license_disabled gpl libutvideo
4266 die_license_disabled gpl libvidstab
4267 die_license_disabled gpl libx264
4268 die_license_disabled gpl libx265
4269 die_license_disabled gpl libxavs
4270 die_license_disabled gpl libxvid
4271 die_license_disabled gpl libzvbi
4272 die_license_disabled gpl x11grab
4273
4274 die_license_disabled nonfree libaacplus
4275 die_license_disabled nonfree libfaac
4276 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4277 enabled gpl && die_license_disabled_gpl nonfree openssl
4278
4279 die_license_disabled version3 libopencore_amrnb
4280 die_license_disabled version3 libopencore_amrwb
4281 die_license_disabled version3 libsmbclient
4282 die_license_disabled version3 libvo_aacenc
4283 die_license_disabled version3 libvo_amrwbenc
4284
4285 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4286
4287 disabled optimizations || check_cflags -fomit-frame-pointer
4288
4289 enable_weak_pic() {
4290     disabled pic && return
4291     enable pic
4292     add_cppflags -DPIC
4293     case "$target_os" in
4294     mingw*|cygwin*)
4295         ;;
4296     *)
4297         add_cflags -fPIC
4298         ;;
4299     esac
4300     add_asflags  -fPIC
4301 }
4302
4303 enabled pic && enable_weak_pic
4304
4305 check_cc <<EOF || die "Symbol mangling check failed."
4306 int ff_extern;
4307 EOF
4308 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4309 extern_prefix=${sym%%ff_extern*}
4310
4311 check_cc <<EOF && enable_weak inline_asm
4312 void foo(void) { __asm__ volatile ("" ::); }
4313 EOF
4314
4315 _restrict=
4316 for restrict_keyword in restrict __restrict__ __restrict; do
4317     check_cc <<EOF && _restrict=$restrict_keyword && break
4318 void foo(char * $restrict_keyword p);
4319 EOF
4320 done
4321
4322 check_cc <<EOF && enable pragma_deprecated
4323 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4324 EOF
4325
4326 check_cc <<EOF && enable attribute_packed
4327 struct { int x; } __attribute__((packed)) x;
4328 EOF
4329
4330 check_cc <<EOF && enable attribute_may_alias
4331 union { int x; } __attribute__((may_alias)) x;
4332 EOF
4333
4334 check_cc <<EOF || die "endian test failed"
4335 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4336 EOF
4337 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4338
4339 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4340     if ! enabled bigendian ;then
4341         enable vsx
4342     fi
4343 fi
4344
4345
4346 if enabled asm; then
4347     enabled     arm         && nogas=die
4348     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4349     as=${gas:=$as}
4350     check_as <<EOF && enable gnu_as || \
4351         $nogas "GNU assembler not found, install gas-preprocessor"
4352 .macro m n
4353 \n: .int 0
4354 .endm
4355 m x
4356 EOF
4357
4358     check_as <<EOF || $nogas "GNU assembler not found, install gas-preprocessor"
4359 .altmacro
4360 EOF
4361
4362     check_as <<EOF && enable as_func
4363 .func test
4364 .endfunc
4365 EOF
4366 fi
4367
4368 check_inline_asm inline_asm_labels '"1:\n"'
4369
4370 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4371
4372 if enabled aarch64; then
4373     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4374     # internal assembler in clang 3.3 does not support this instruction
4375     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4376     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4377
4378     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4379
4380 elif enabled alpha; then
4381
4382     check_cflags -mieee
4383
4384 elif enabled arm; then
4385
4386     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4387 float func(float a, float b){ return a+b; }
4388 EOF
4389
4390     enabled thumb && check_cflags -mthumb || check_cflags -marm
4391
4392     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4393         enable vfp_args
4394     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4395         case "${cross_prefix:-$cc}" in
4396             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4397             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4398 __asm__ (".eabi_attribute 28, 1");
4399 int main(void) { return 0; }
4400 EOF
4401         esac
4402         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4403     fi
4404
4405     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4406     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4407     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4408     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4409     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4410     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4411
4412     [ $target_os = linux ] || [ $target_os = android ] ||
4413         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4414             $ARCH_EXT_LIST_ARM
4415
4416     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4417
4418     check_as <<EOF && enable as_dn_directive
4419 ra .dn d0.i16
4420 .unreq ra
4421 EOF
4422
4423     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4424
4425 elif enabled mips; then
4426
4427     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4428     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4429      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4430     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4431      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4432     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4433      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4434     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4435      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4436
4437 elif enabled parisc; then
4438
4439     if enabled gcc; then
4440         case $($cc -dumpversion) in
4441             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4442         esac
4443     fi
4444
4445 elif enabled ppc; then
4446
4447     enable local_aligned_8 local_aligned_16 local_aligned_32
4448
4449     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4450     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4451     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4452     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4453
4454     # AltiVec flags: The FSF version of GCC differs from the Apple version
4455     if enabled altivec; then
4456         check_cflags -maltivec -mabi=altivec &&
4457         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4458         check_cflags -faltivec
4459
4460         # check if our compiler supports Motorola AltiVec C API
4461         check_cc <<EOF || disable altivec
4462 $inc_altivec_h
4463 int main(void) {
4464     vector signed int v1 = (vector signed int) { 0 };
4465     vector signed int v2 = (vector signed int) { 1 };
4466     v1 = vec_add(v1, v2);
4467     return 0;
4468 }
4469 EOF
4470
4471         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4472     fi
4473
4474     if enabled vsx; then
4475         check_cflags -mvsx
4476     fi
4477 elif enabled x86; then
4478
4479     check_builtin rdtsc    intrin.h   "__rdtsc()"
4480     check_builtin mm_empty mmintrin.h "_mm_empty()"
4481
4482     enable local_aligned_8 local_aligned_16 local_aligned_32
4483
4484     # check whether EBP is available on x86
4485     # As 'i' is stored on the stack, this program will crash
4486     # if the base pointer is used to access it because the
4487     # base pointer is cleared in the inline assembly code.
4488     check_exec_crash <<EOF && enable ebp_available
4489 volatile int i=0;
4490 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4491 return i;
4492 EOF
4493
4494     # check whether EBX is available on x86
4495     check_inline_asm ebx_available '""::"b"(0)' &&
4496         check_inline_asm ebx_available '"":::"%ebx"'
4497
4498     # check whether xmm clobbers are supported
4499     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4500
4501     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4502         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4503
4504     # check whether binutils is new enough to compile SSSE3/MMXEXT
4505     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4506     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4507
4508     if ! disabled_any asm mmx yasm; then
4509         if check_cmd $yasmexe --version; then
4510             enabled x86_64 && yasm_extra="-m amd64"
4511             yasm_debug="-g dwarf2"
4512         elif check_cmd nasm -v; then
4513             yasmexe=nasm
4514             yasm_debug="-g -F dwarf"
4515             if enabled x86_64; then
4516                 case "$objformat" in
4517                     elf)   objformat=elf64 ;;
4518                     win32) objformat=win64 ;;
4519                 esac
4520             fi
4521         fi
4522
4523         YASMFLAGS="-f $objformat $yasm_extra"
4524         enabled pic               && append YASMFLAGS "-DPIC"
4525         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4526         case "$objformat" in
4527             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4528         esac
4529
4530         check_yasm "movbe ecx, [5]" && enable yasm ||
4531             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4532         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4533         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4534         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4535         check_yasm "CPU amdnop" || disable cpunop
4536     fi
4537
4538     case "$cpu" in
4539         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4540             disable fast_clz
4541         ;;
4542     esac
4543
4544 fi
4545
4546 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4547
4548 check_ldflags -Wl,--as-needed
4549
4550 if check_func dlopen; then
4551     ldl=
4552 elif check_func dlopen -ldl; then
4553     ldl=-ldl
4554 fi
4555
4556 if ! disabled network; then
4557     check_func getaddrinfo $network_extralibs
4558     check_func getservbyport $network_extralibs
4559     check_func inet_aton $network_extralibs
4560
4561     check_type netdb.h "struct addrinfo"
4562     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4563     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4564     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4565     check_type poll.h "struct pollfd"
4566     check_type netinet/sctp.h "struct sctp_event_subscribe"
4567     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4568     check_type netinet/in.h "struct sockaddr_in6"
4569     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4570     check_type "sys/types.h sys/socket.h" socklen_t
4571
4572     # Prefer arpa/inet.h over winsock2
4573     if check_header arpa/inet.h ; then
4574         check_func closesocket
4575     elif check_header winsock2.h ; then
4576         check_func_headers winsock2.h closesocket -lws2 &&
4577             network_extralibs="-lws2" ||
4578         { check_func_headers winsock2.h closesocket -lws2_32 &&
4579             network_extralibs="-lws2_32"; } || disable winsock2_h network
4580         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4581
4582         check_type ws2tcpip.h socklen_t
4583         check_type ws2tcpip.h "struct addrinfo"
4584         check_type ws2tcpip.h "struct group_source_req"
4585         check_type ws2tcpip.h "struct ip_mreq_source"
4586         check_type ws2tcpip.h "struct ipv6_mreq"
4587         check_type winsock2.h "struct pollfd"
4588         check_struct winsock2.h "struct sockaddr" sa_len
4589         check_type ws2tcpip.h "struct sockaddr_in6"
4590         check_type ws2tcpip.h "struct sockaddr_storage"
4591     else
4592         disable network
4593     fi
4594 fi
4595
4596 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4597 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4598 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4599 check_builtin sarestart signal.h "SA_RESTART"
4600 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4601
4602 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4603 check_func  ${malloc_prefix}memalign            && enable memalign
4604 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4605
4606 check_func  access
4607 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4608 check_func  fcntl
4609 check_func  fork
4610 check_func  gethrtime
4611 check_func  getopt
4612 check_func  getrusage
4613 check_func  gettimeofday
4614 check_func  isatty
4615 check_func  localtime_r
4616 check_func  mach_absolute_time
4617 check_func  mkstemp
4618 check_func  mmap
4619 check_func  mprotect
4620 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4621 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4622 check_func  sched_getaffinity
4623 check_func  setrlimit
4624 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4625 check_func  strerror_r
4626 check_func  sysconf
4627 check_func  sysctl
4628 check_func  usleep
4629
4630 check_func_headers conio.h kbhit
4631 check_func_headers io.h setmode
4632 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4633 check_func_headers stdlib.h getenv
4634
4635 check_func_headers windows.h CoTaskMemFree -lole32
4636 check_func_headers windows.h GetProcessAffinityMask
4637 check_func_headers windows.h GetProcessTimes
4638 check_func_headers windows.h GetSystemTimeAsFileTime
4639 check_func_headers windows.h MapViewOfFile
4640 check_func_headers windows.h PeekNamedPipe
4641 check_func_headers windows.h SetConsoleTextAttribute
4642 check_func_headers windows.h Sleep
4643 check_func_headers windows.h VirtualAlloc
4644 check_func_headers glob.h glob
4645 enabled xlib &&
4646     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4647
4648 check_header cl/cl.h
4649 check_header direct.h
4650 check_header dlfcn.h
4651 check_header dxva.h
4652 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4653 check_header io.h
4654 check_header libcrystalhd/libcrystalhd_if.h
4655 check_header mach/mach_time.h
4656 check_header malloc.h
4657 check_header poll.h
4658 check_header sys/mman.h
4659 check_header sys/param.h
4660 check_header sys/resource.h
4661 check_header sys/select.h
4662 check_header sys/time.h
4663 check_header sys/un.h
4664 check_header termios.h
4665 check_header unistd.h
4666 check_header vdpau/vdpau.h
4667 check_header vdpau/vdpau_x11.h
4668 check_header VideoDecodeAcceleration/VDADecoder.h
4669 check_header windows.h
4670 check_header X11/extensions/XvMClib.h
4671 check_header asm/types.h
4672
4673 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4674 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4675 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4676
4677 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4678
4679 if ! disabled w32threads && ! enabled pthreads; then
4680     check_func_headers "windows.h process.h" _beginthreadex &&
4681         enable w32threads || disable w32threads
4682 fi
4683
4684 # check for some common methods of building with pthread support
4685 # do this before the optional library checks as some of them require pthreads
4686 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4687     enable pthreads
4688     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4689         add_cflags -pthread
4690         add_extralibs -pthread
4691     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4692         add_cflags -pthreads
4693         add_extralibs -pthreads
4694     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4695         add_cflags -ldl -pthread
4696         add_extralibs -ldl -pthread
4697     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4698         add_extralibs -lpthreadGC2
4699     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4700         :
4701     elif ! check_func pthread_join && ! check_func pthread_create; then
4702         disable pthreads
4703     fi
4704     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4705 fi
4706
4707
4708 if enabled pthreads; then
4709   check_func pthread_cancel
4710 fi
4711
4712 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4713 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4714
4715 check_lib math.h sin -lm && LIBM="-lm"
4716 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4717
4718 atan2f_args=2
4719 ldexpf_args=2
4720 powf_args=2
4721 fminf_args=2
4722
4723 for func in $MATH_FUNCS; do
4724     eval check_mathfunc $func \${${func}_args:-1}
4725 done
4726
4727 # these are off by default, so fail if requested and not available
4728 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4729 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4730                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4731                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4732 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4733 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4734 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4735 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4736 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4737 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4738 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4739 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4740 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4741 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4742                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4743                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4744 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4745 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4746 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4747 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"
4748 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4749 enabled fontconfig        && enable libfontconfig
4750 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4751 enabled libfreetype       && require_libfreetype
4752 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4753 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4754 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4755                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4756                                done || die "ERROR: libgsm not found"; }
4757 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4758 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4759 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4760 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4761 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4762 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4763 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4764 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4765                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4766                                die "ERROR: libopenjpeg not found"; }
4767 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4768 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4769 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4770 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4771 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4772 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4773 enabled libsmbclient      && { { check_pkg_config smbclient libsmbclient.h smbc_init &&
4774                                  require_pkg_config smbclient libsmbclient.h smbc_init; } ||
4775                                  require smbclient libsmbclient.h smbc_init -lsmbclient; }
4776 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4777 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4778 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4779 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4780     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4781     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4782 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4783 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4784                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4785                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4786 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4787 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4788 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4789 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4790 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4791 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4792 enabled libvpx            && {
4793     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4794                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4795     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 ||
4796                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4797     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4798     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_SVC" -lvpx || disable libvpx_vp9_encoder; } }
4799 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4800 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4801 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4802                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4803                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4804 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4805                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4806                                die "ERROR: libx265 version must be >= 17."; }
4807 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4808 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4809 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4810 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4811 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4812                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4813                                die "ERROR: openal not found"; } &&
4814                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4815                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4816 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4817                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4818                                die "ERROR: opencl not found"; } &&
4819                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4820                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4821                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4822 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4823                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4824                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4825                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4826                                die "ERROR: opengl not found."
4827                              }
4828 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4829                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4830                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4831                                die "ERROR: openssl not found"; }
4832 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4833
4834 if enabled gnutls; then
4835     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4836     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4837 fi
4838
4839 # libdc1394 check
4840 if enabled libdc1394; then
4841     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4842         enable libdc1394_2; } ||
4843     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4844         enable libdc1394_1; } ||
4845     die "ERROR: No version of libdc1394 found "
4846 fi
4847
4848 SDL_CONFIG="${cross_prefix}sdl-config"
4849 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4850     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4851     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4852     enable sdl
4853 else
4854   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4855     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4856     sdl_libs=$("${SDL_CONFIG}" --libs)
4857     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4858     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4859     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4860     enable sdl
4861   fi
4862 fi
4863 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4864
4865 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4866 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4867 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4868 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4869 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4870
4871 check_header linux/fb.h
4872 check_header linux/videodev.h
4873 check_header linux/videodev2.h
4874 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4875
4876 check_header sys/videoio.h
4877
4878 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4879 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4880 # w32api 3.12 had it defined wrong
4881 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4882
4883 check_type "dshow.h" IBaseFilter
4884
4885 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4886 { check_header dev/bktr/ioctl_meteor.h &&
4887   check_header dev/bktr/ioctl_bt848.h; } ||
4888 { check_header machine/ioctl_meteor.h &&
4889   check_header machine/ioctl_bt848.h; } ||
4890 { check_header dev/video/meteor/ioctl_meteor.h &&
4891   check_header dev/video/bktr/ioctl_bt848.h; } ||
4892 check_header dev/ic/bt8xx.h
4893
4894 check_header sndio.h
4895 if check_struct sys/soundcard.h audio_buf_info bytes; then
4896     enable_safe sys/soundcard.h
4897 else
4898     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4899     #include <sys/soundcard.h>
4900     audio_buf_info abc;
4901 EOF
4902 fi
4903 check_header soundcard.h
4904
4905 enabled_any alsa_indev alsa_outdev &&
4906     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4907
4908 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4909     check_func jack_port_get_latency_range -ljack
4910
4911 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4912
4913 if enabled libcdio; then
4914     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4915     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4916     die "ERROR: libcdio-paranoia not found"
4917 fi
4918
4919 enabled xlib &&
4920     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4921
4922 enabled x11grab                                           &&
4923 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4924 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4925 { enabled xlib || die "ERROR: Xlib not found"; }
4926
4927 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
4928
4929 enabled dxva2api_h &&
4930     check_cc <<EOF && enable dxva2api_cobj
4931 #define _WIN32_WINNT 0x0600
4932 #define COBJMACROS
4933 #include <windows.h>
4934 #include <d3d9.h>
4935 #include <dxva2api.h>
4936 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
4937 EOF
4938
4939 enabled vaapi &&
4940     check_lib va/va.h vaInitialize -lva ||
4941     disable vaapi
4942
4943 enabled vdpau &&
4944     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4945     disable vdpau
4946
4947 enabled vdpau && enabled xlib &&
4948     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4949     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4950     enable vdpau_x11
4951
4952 # Funny iconv installations are not unusual, so check it after all flags have been set
4953 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4954
4955 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4956
4957 # add some useful compiler flags if supported
4958 check_cflags -Wdeclaration-after-statement
4959 check_cflags -Wall
4960 check_cflags -Wdisabled-optimization
4961 check_cflags -Wpointer-arith
4962 check_cflags -Wredundant-decls
4963 check_cflags -Wwrite-strings
4964 check_cflags -Wtype-limits
4965 check_cflags -Wundef
4966 check_cflags -Wmissing-prototypes
4967 check_cflags -Wno-pointer-to-int-cast
4968 check_cflags -Wstrict-prototypes
4969 check_cflags -Wempty-body
4970 enabled extra_warnings && check_cflags -Winline
4971
4972 check_disable_warning(){
4973     warning_flag=-W${1#-Wno-}
4974     test_cflags $warning_flag && add_cflags $1
4975 }
4976
4977 check_disable_warning -Wno-parentheses
4978 check_disable_warning -Wno-switch
4979 check_disable_warning -Wno-format-zero-length
4980 check_disable_warning -Wno-pointer-sign
4981
4982 # add some linker flags
4983 check_ldflags -Wl,--warn-common
4984 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4985 enabled rpath && add_ldflags -Wl,-rpath,$libdir
4986 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4987
4988 # add some strip flags
4989 # -wN '..@*' is more selective than -x, but not available everywhere.
4990 check_stripflags -wN \'..@*\' || check_stripflags -x
4991
4992 enabled neon_clobber_test &&
4993     check_ldflags -Wl,--wrap,avcodec_open2              \
4994                   -Wl,--wrap,avcodec_decode_audio4      \
4995                   -Wl,--wrap,avcodec_decode_video2      \
4996                   -Wl,--wrap,avcodec_decode_subtitle2   \
4997                   -Wl,--wrap,avcodec_encode_audio2      \
4998                   -Wl,--wrap,avcodec_encode_video2      \
4999                   -Wl,--wrap,avcodec_encode_subtitle    \
5000                   -Wl,--wrap,swr_convert                \
5001                   -Wl,--wrap,avresample_convert ||
5002     disable neon_clobber_test
5003
5004 enabled xmm_clobber_test &&
5005     check_ldflags -Wl,--wrap,avcodec_open2              \
5006                   -Wl,--wrap,avcodec_decode_audio4      \
5007                   -Wl,--wrap,avcodec_decode_video2      \
5008                   -Wl,--wrap,avcodec_decode_subtitle2   \
5009                   -Wl,--wrap,avcodec_encode_audio2      \
5010                   -Wl,--wrap,avcodec_encode_video       \
5011                   -Wl,--wrap,avcodec_encode_video2      \
5012                   -Wl,--wrap,avcodec_encode_subtitle    \
5013                   -Wl,--wrap,swr_convert                \
5014                   -Wl,--wrap,avresample_convert         \
5015                   -Wl,--wrap,sws_scale ||
5016     disable xmm_clobber_test
5017
5018 echo "X{};" > $TMPV
5019 if test_ldflags -Wl,--version-script,$TMPV; then
5020     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5021     check_cc <<EOF && enable symver_asm_label
5022 void ff_foo(void) __asm__ ("av_foo@VERSION");
5023 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5024 EOF
5025     check_cc <<EOF && enable symver_gnu_asm
5026 __asm__(".symver ff_foo,av_foo@VERSION");
5027 void ff_foo(void) {}
5028 EOF
5029 fi
5030
5031 if [ -z "$optflags" ]; then
5032     if enabled small; then
5033         optflags=$cflags_size
5034     elif enabled optimizations; then
5035         optflags=$cflags_speed
5036     else
5037         optflags=$cflags_noopt
5038     fi
5039 fi
5040
5041 check_optflags(){
5042     check_cflags "$@"
5043     enabled lto && check_ldflags "$@"
5044 }
5045
5046
5047 if enabled lto; then
5048     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5049     check_cflags  -flto
5050     check_ldflags -flto $cpuflags
5051     disable inline_asm_direct_symbol_refs
5052 fi
5053
5054 check_optflags $optflags
5055 check_optflags -fno-math-errno
5056 check_optflags -fno-signed-zeros
5057
5058 enabled ftrapv && check_cflags -ftrapv
5059
5060 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5061 int x;
5062 EOF
5063
5064
5065 if enabled icc; then
5066     # Just warnings, no remarks
5067     check_cflags -w1
5068     # -wd: Disable following warnings
5069     # 144, 167, 556: -Wno-pointer-sign
5070     # 188: enumerated type mixed with another type
5071     # 1292: attribute "foo" ignored
5072     # 1419: external declaration in primary source file
5073     # 10006: ignoring unknown option -fno-signed-zeros
5074     # 10148: ignoring unknown option -Wno-parentheses
5075     # 10156: ignoring option '-W'; no argument required
5076     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5077     # 11030: Warning unknown option --as-needed
5078     # 10156: ignoring option '-export'; no argument required
5079     check_ldflags -wd10156,11030
5080     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5081     enable ebp_available
5082     # The test above does not test linking
5083     enabled lto && disable symver_asm_label
5084     if enabled x86_32; then
5085         icc_version=$($cc -dumpversion)
5086         test ${icc_version%%.*} -ge 11 &&
5087             check_cflags -falign-stack=maintain-16-byte ||
5088             disable aligned_stack
5089     fi
5090 elif enabled ccc; then
5091     # disable some annoying warnings
5092     add_cflags -msg_disable bitnotint
5093     add_cflags -msg_disable mixfuncvoid
5094     add_cflags -msg_disable nonstandcast
5095     add_cflags -msg_disable unsupieee
5096 elif enabled gcc; then
5097     check_optflags -fno-tree-vectorize
5098     check_cflags -Werror=format-security
5099     check_cflags -Werror=implicit-function-declaration
5100     check_cflags -Werror=missing-prototypes
5101     check_cflags -Werror=return-type
5102     check_cflags -Werror=vla
5103     check_cflags -Wformat
5104     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5105 elif enabled llvm_gcc; then
5106     check_cflags -mllvm -stack-alignment=16
5107 elif enabled clang; then
5108     check_cflags -mllvm -stack-alignment=16
5109     check_cflags -Qunused-arguments
5110     check_cflags -Werror=implicit-function-declaration
5111     check_cflags -Werror=missing-prototypes
5112     check_cflags -Werror=return-type
5113 elif enabled cparser; then
5114     add_cflags -Wno-missing-variable-declarations
5115     add_cflags -Wno-empty-statement
5116 elif enabled armcc; then
5117     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5118     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5119     # 2523: use of inline assembly is deprecated
5120     add_cflags -W${armcc_opt},--diag_suppress=2523
5121     add_cflags -W${armcc_opt},--diag_suppress=1207
5122     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5123     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5124     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5125     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5126 elif enabled tms470; then
5127     add_cflags -pds=824 -pds=837
5128     disable inline_asm
5129 elif enabled pathscale; then
5130     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5131 elif enabled_any msvc icl; then
5132     enabled x86_32 && disable aligned_stack
5133     enabled_all x86_32 debug && add_cflags -Oy-
5134     enabled debug && add_ldflags -debug
5135     enable pragma_deprecated
5136     if enabled icl; then
5137         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5138         # (correctly) on icl 13.x.
5139         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5140             add_cflags -Qansi-alias
5141         # Some inline asm is not compilable in debug
5142         if enabled debug; then
5143             disable ebp_available
5144             disable ebx_available
5145         fi
5146     fi
5147     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5148     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5149 fi
5150
5151 case $as_type in
5152     clang)
5153         add_asflags -Qunused-arguments
5154     ;;
5155 esac
5156
5157 case $ld_type in
5158     clang)
5159         check_ldflags -Qunused-arguments
5160     ;;
5161 esac
5162
5163 case $target_os in
5164     osf1)
5165         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5166     ;;
5167     plan9)
5168         add_cppflags -Dmain=plan9_main
5169     ;;
5170 esac
5171
5172 enable frame_thread_encoder
5173
5174 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5175
5176 check_deps $CONFIG_LIST       \
5177            $CONFIG_EXTRA      \
5178            $HAVE_LIST         \
5179            $ALL_COMPONENTS    \
5180
5181 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"
5182
5183
5184 if test $target_os = "haiku"; then
5185     disable memalign
5186     disable posix_memalign
5187 fi
5188
5189 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5190     prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5191     enable dxva2_lib
5192
5193 ! enabled_any memalign posix_memalign aligned_malloc &&
5194     enabled $simd_align_16 && enable memalign_hack
5195
5196 # add_dep lib dep
5197 # -> enable ${lib}_deps_${dep}
5198 # -> add $dep to ${lib}_deps only once
5199 add_dep() {
5200     lib=$1
5201     dep=$2
5202     enabled "${lib}_deps_${dep}" && return 0
5203     enable  "${lib}_deps_${dep}"
5204     prepend "${lib}_deps" $dep
5205 }
5206
5207 # merge deps lib components
5208 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5209 merge_deps() {
5210     lib=$1
5211     shift
5212     for comp in $*; do
5213         enabled $comp || continue
5214         eval "dep=\"\$${comp}_deps\""
5215         for d in $dep; do
5216             add_dep $lib $d
5217         done
5218     done
5219 }
5220
5221 merge_deps libavfilter $FILTER_LIST
5222
5223 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5224
5225 for thread in $THREADS_LIST; do
5226     if enabled $thread; then
5227         test -n "$thread_type" &&
5228             die "ERROR: Only one thread type must be selected." ||
5229             thread_type="$thread"
5230     fi
5231 done
5232
5233 # conditional library dependencies, in linking order
5234 enabled aconvert_filter     && prepend avfilter_deps "swresample"
5235 enabled amovie_filter       && prepend avfilter_deps "avformat avcodec"
5236 enabled aresample_filter    && prepend avfilter_deps "swresample"
5237 enabled asyncts_filter      && prepend avfilter_deps "avresample"
5238 enabled atempo_filter       && prepend avfilter_deps "avcodec"
5239 enabled decimate_filter     && prepend avfilter_deps "avcodec"
5240 enabled deshake_filter      && prepend avfilter_deps "avcodec"
5241 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5242 enabled elbg_filter         && prepend avfilter_deps "avcodec"
5243 enabled mcdeint_filter      && prepend avfilter_deps "avcodec"
5244 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5245 enabled mp_filter           && prepend avfilter_deps "avcodec"
5246 enabled pan_filter          && prepend avfilter_deps "swresample"
5247 enabled pp_filter           && prepend avfilter_deps "postproc"
5248 enabled removelogo_filter   && prepend avfilter_deps "avformat avcodec swscale"
5249 enabled resample_filter && prepend avfilter_deps "avresample"
5250 enabled sab_filter          && prepend avfilter_deps "swscale"
5251 enabled scale_filter    && prepend avfilter_deps "swscale"
5252 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5253 enabled smartblur_filter    && prepend avfilter_deps "swscale"
5254 enabled subtitles_filter    && prepend avfilter_deps "avformat avcodec"
5255
5256 enabled lavfi_indev         && prepend avdevice_deps "avfilter"
5257
5258 enabled opus_decoder    && prepend avcodec_deps "swresample"
5259
5260 expand_deps(){
5261     lib_deps=${1}_deps
5262     eval "deps=\$$lib_deps"
5263     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5264     unique $lib_deps
5265 }
5266
5267 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5268 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5269
5270 map 'expand_deps $v' $LIBRARY_LIST
5271
5272 echo "install prefix            $prefix"
5273 echo "source path               $source_path"
5274 echo "C compiler                $cc"
5275 echo "C library                 $libc_type"
5276 if test "$host_cc" != "$cc"; then
5277     echo "host C compiler           $host_cc"
5278     echo "host C library            $host_libc_type"
5279 fi
5280 echo "ARCH                      $arch ($cpu)"
5281 if test "$build_suffix" != ""; then
5282     echo "build suffix              $build_suffix"
5283 fi
5284 if test "$progs_suffix" != ""; then
5285     echo "progs suffix              $progs_suffix"
5286 fi
5287 if test "$extra_version" != ""; then
5288     echo "version string suffix     $extra_version"
5289 fi
5290 echo "big-endian                ${bigendian-no}"
5291 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5292 if enabled x86; then
5293     echo "${yasmexe}                      ${yasm-no}"
5294     echo "MMX enabled               ${mmx-no}"
5295     echo "MMXEXT enabled            ${mmxext-no}"
5296     echo "3DNow! enabled            ${amd3dnow-no}"
5297     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5298     echo "SSE enabled               ${sse-no}"
5299     echo "SSSE3 enabled             ${ssse3-no}"
5300     echo "AVX enabled               ${avx-no}"
5301     echo "XOP enabled               ${xop-no}"
5302     echo "FMA3 enabled              ${fma3-no}"
5303     echo "FMA4 enabled              ${fma4-no}"
5304     echo "i686 features enabled     ${i686-no}"
5305     echo "CMOV is fast              ${fast_cmov-no}"
5306     echo "EBX available             ${ebx_available-no}"
5307     echo "EBP available             ${ebp_available-no}"
5308 fi
5309 if enabled aarch64; then
5310     echo "NEON enabled              ${neon-no}"
5311     echo "VFP enabled               ${vfp-no}"
5312 fi
5313 if enabled arm; then
5314     echo "ARMv5TE enabled           ${armv5te-no}"
5315     echo "ARMv6 enabled             ${armv6-no}"
5316     echo "ARMv6T2 enabled           ${armv6t2-no}"
5317     echo "VFP enabled               ${vfp-no}"
5318     echo "NEON enabled              ${neon-no}"
5319     echo "THUMB enabled             ${thumb-no}"
5320 fi
5321 if enabled mips; then
5322     echo "MIPS FPU enabled          ${mipsfpu-no}"
5323     echo "MIPS32R2 enabled          ${mips32r2-no}"
5324     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5325     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5326 fi
5327 if enabled ppc; then
5328     echo "AltiVec enabled           ${altivec-no}"
5329     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5330     echo "PPC VSX optimizations     ${vsx-no}"
5331     echo "dcbzl available           ${dcbzl-no}"
5332 fi
5333 echo "debug symbols             ${debug-no}"
5334 echo "strip symbols             ${stripping-no}"
5335 echo "optimize for size         ${small-no}"
5336 echo "optimizations             ${optimizations-no}"
5337 echo "static                    ${static-no}"
5338 echo "shared                    ${shared-no}"
5339 echo "postprocessing support    ${postproc-no}"
5340 echo "new filter support        ${avfilter-no}"
5341 echo "network support           ${network-no}"
5342 echo "threading support         ${thread_type-no}"
5343 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5344 echo "SDL support               ${sdl-no}"
5345 echo "opencl enabled            ${opencl-no}"
5346 echo "texi2html enabled         ${texi2html-no}"
5347 echo "perl enabled              ${perl-no}"
5348 echo "pod2man enabled           ${pod2man-no}"
5349 echo "makeinfo enabled          ${makeinfo-no}"
5350 test -n "$random_seed" &&
5351     echo "random seed               ${random_seed}"
5352 echo
5353
5354 echo "External libraries:"
5355 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5356 echo
5357
5358 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5359     echo "Enabled ${type}s:"
5360     eval list=\$$(toupper $type)_LIST
5361     print_enabled '_*' $list | print_3_columns
5362     echo
5363 done
5364
5365 license="LGPL version 2.1 or later"
5366 if enabled nonfree; then
5367     license="nonfree and unredistributable"
5368 elif enabled gplv3; then
5369     license="GPL version 3 or later"
5370 elif enabled lgplv3; then
5371     license="LGPL version 3 or later"
5372 elif enabled gpl; then
5373     license="GPL version 2 or later"
5374 fi
5375
5376 echo "License: $license"
5377
5378 echo "Creating config.mak, config.h, and doc/config.texi..."
5379
5380 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5381
5382 enabled stripping || strip="echo skipping strip"
5383
5384 config_files="$TMPH config.mak doc/config.texi"
5385
5386 cat > config.mak <<EOF
5387 # Automatically generated by configure - do not modify!
5388 ifndef FFMPEG_CONFIG_MAK
5389 FFMPEG_CONFIG_MAK=1
5390 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5391 prefix=$prefix
5392 LIBDIR=\$(DESTDIR)$libdir
5393 SHLIBDIR=\$(DESTDIR)$shlibdir
5394 INCDIR=\$(DESTDIR)$incdir
5395 BINDIR=\$(DESTDIR)$bindir
5396 DATADIR=\$(DESTDIR)$datadir
5397 DOCDIR=\$(DESTDIR)$docdir
5398 MANDIR=\$(DESTDIR)$mandir
5399 SRC_PATH=$source_path
5400 ifndef MAIN_MAKEFILE
5401 SRC_PATH:=\$(SRC_PATH:.%=..%)
5402 endif
5403 CC_IDENT=$cc_ident
5404 ARCH=$arch
5405 INTRINSICS=$intrinsics
5406 CC=$cc
5407 CXX=$cxx
5408 AS=$as
5409 LD=$ld
5410 DEPCC=$dep_cc
5411 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5412 DEPAS=$as
5413 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5414 YASM=$yasmexe
5415 DEPYASM=$yasmexe
5416 AR=$ar
5417 ARFLAGS=$arflags
5418 AR_O=$ar_o
5419 RANLIB=$ranlib
5420 STRIP=$strip
5421 CP=cp -p
5422 LN_S=$ln_s
5423 CPPFLAGS=$CPPFLAGS
5424 CFLAGS=$CFLAGS
5425 CXXFLAGS=$CXXFLAGS
5426 ASFLAGS=$ASFLAGS
5427 AS_C=$AS_C
5428 AS_O=$AS_O
5429 CC_C=$CC_C
5430 CC_E=$CC_E
5431 CC_O=$CC_O
5432 CXX_C=$CXX_C
5433 CXX_O=$CXX_O
5434 LD_O=$LD_O
5435 LD_LIB=$LD_LIB
5436 LD_PATH=$LD_PATH
5437 DLLTOOL=$dlltool
5438 WINDRES=$windres
5439 DEPWINDRES=$dep_cc
5440 DOXYGEN=$doxygen
5441 LDFLAGS=$LDFLAGS
5442 LDEXEFLAGS=$LDEXEFLAGS
5443 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5444 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5445 YASMFLAGS=$YASMFLAGS
5446 BUILDSUF=$build_suffix
5447 PROGSSUF=$progs_suffix
5448 FULLNAME=$FULLNAME
5449 LIBPREF=$LIBPREF
5450 LIBSUF=$LIBSUF
5451 LIBNAME=$LIBNAME
5452 SLIBPREF=$SLIBPREF
5453 SLIBSUF=$SLIBSUF
5454 EXESUF=$EXESUF
5455 EXTRA_VERSION=$extra_version
5456 CCDEP=$CCDEP
5457 CXXDEP=$CXXDEP
5458 CCDEP_FLAGS=$CCDEP_FLAGS
5459 ASDEP=$ASDEP
5460 ASDEP_FLAGS=$ASDEP_FLAGS
5461 CC_DEPFLAGS=$CC_DEPFLAGS
5462 AS_DEPFLAGS=$AS_DEPFLAGS
5463 HOSTCC=$host_cc
5464 HOSTLD=$host_ld
5465 HOSTCFLAGS=$host_cflags
5466 HOSTCPPFLAGS=$host_cppflags
5467 HOSTEXESUF=$HOSTEXESUF
5468 HOSTLDFLAGS=$host_ldflags
5469 HOSTLIBS=$host_libs
5470 DEPHOSTCC=$host_cc
5471 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5472 HOSTCCDEP=$HOSTCCDEP
5473 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5474 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5475 HOSTCC_C=$HOSTCC_C
5476 HOSTCC_O=$HOSTCC_O
5477 HOSTLD_O=$HOSTLD_O
5478 TARGET_EXEC=$target_exec $target_exec_args
5479 TARGET_PATH=$target_path
5480 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5481 CFLAGS-ffplay=$sdl_cflags
5482 ZLIB=$($ldflags_filter -lz)
5483 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5484 EXTRALIBS=$extralibs
5485 COMPAT_OBJS=$compat_objs
5486 EXEOBJS=$exeobjs
5487 INSTALL=$install
5488 LIBTARGET=${LIBTARGET}
5489 SLIBNAME=${SLIBNAME}
5490 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5491 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5492 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5493 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5494 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5495 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5496 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5497 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5498 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5499 NOREDZONE_FLAGS=$noredzone_flags
5500 EOF
5501
5502 get_version(){
5503     lcname=lib${1}
5504     name=$(toupper $lcname)
5505     file=$source_path/$lcname/version.h
5506     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5507     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5508     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5509     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5510     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5511     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5512 }
5513
5514 map 'get_version $v' $LIBRARY_LIST
5515
5516 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5517
5518 print_program_libs(){
5519     eval "program_libs=\$${1}_libs"
5520     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5521 }
5522
5523 map 'print_program_libs $v' $PROGRAM_LIST
5524
5525 cat > $TMPH <<EOF
5526 /* Automatically generated by configure - do not modify! */
5527 #ifndef FFMPEG_CONFIG_H
5528 #define FFMPEG_CONFIG_H
5529 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5530 #define FFMPEG_LICENSE "$(c_escape $license)"
5531 #define CONFIG_THIS_YEAR 2014
5532 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5533 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5534 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5535 #define av_restrict $_restrict
5536 #define EXTERN_PREFIX "${extern_prefix}"
5537 #define EXTERN_ASM ${extern_prefix}
5538 #define BUILDSUF "$build_suffix"
5539 #define SLIBSUF "$SLIBSUF"
5540 #define HAVE_MMX2 HAVE_MMXEXT
5541 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5542 EOF
5543
5544 test -n "$assert_level" &&
5545     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5546
5547 test -n "$malloc_prefix" &&
5548     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5549
5550 if enabled yasm; then
5551     append config_files $TMPASM
5552     printf '' >$TMPASM
5553 fi
5554
5555 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5556
5557
5558 mkdir -p doc
5559 echo "@c auto-generated by configure" > doc/config.texi
5560
5561 print_config ARCH_   "$config_files" $ARCH_LIST
5562 print_config HAVE_   "$config_files" $HAVE_LIST
5563 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5564                                      $CONFIG_EXTRA      \
5565                                      $ALL_COMPONENTS    \
5566
5567 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5568 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5569
5570 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5571 cp_if_changed $TMPH config.h
5572 touch .config
5573
5574 enabled yasm && cp_if_changed $TMPASM config.asm
5575
5576 cat > $TMPH <<EOF
5577 /* Generated by ffconf */
5578 #ifndef AVUTIL_AVCONFIG_H
5579 #define AVUTIL_AVCONFIG_H
5580 EOF
5581
5582 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5583
5584 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5585
5586 cp_if_changed $TMPH libavutil/avconfig.h
5587
5588 if test -n "$WARNINGS"; then
5589     printf "\n$WARNINGS"
5590     enabled fatal_warnings && exit 1
5591 fi
5592
5593 # build pkg-config files
5594
5595 lib_version(){
5596     eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5597 }
5598
5599 pkgconfig_generate(){
5600     name=$1
5601     shortname=${name#lib}${build_suffix}
5602     comment=$2
5603     version=$3
5604     libs=$4
5605     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5606     requires=${requires%, }
5607     enabled ${name#lib} || return 0
5608     mkdir -p $name
5609     cat <<EOF > $name/$name${build_suffix}.pc
5610 prefix=$prefix
5611 exec_prefix=\${prefix}
5612 libdir=$libdir
5613 includedir=$incdir
5614
5615 Name: $name
5616 Description: $comment
5617 Version: $version
5618 Requires: $(enabled shared || echo $requires)
5619 Requires.private: $(enabled shared && echo $requires)
5620 Conflicts:
5621 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5622 Libs.private: $(enabled shared && echo $libs)
5623 Cflags: -I\${includedir}
5624 EOF
5625
5626 mkdir -p doc/examples/pc-uninstalled
5627 includedir=${source_path}
5628 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5629     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5630 prefix=
5631 exec_prefix=
5632 libdir=\${pcfiledir}/../../../$name
5633 includedir=${includedir}
5634
5635 Name: $name
5636 Description: $comment
5637 Version: $version
5638 Requires: $requires
5639 Conflicts:
5640 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5641 Cflags: -I\${includedir}
5642 EOF
5643 }
5644
5645 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5646 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs"
5647 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs"
5648 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs"
5649 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs"
5650 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""
5651 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$LIBM"
5652 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"
5653 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"