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-libcaca         enable textual display using libcaca
 203   --enable-libcelt         enable CELT decoding via libcelt [no]
 204   --enable-libcdio         enable audio CD grabbing with libcdio
 205   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 206                            and libraw1394 [no]
 207   --enable-libfaac         enable AAC encoding via libfaac [no]
 208   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 209   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 210   --enable-libfreetype     enable libfreetype [no]
 211   --enable-libgme          enable Game Music Emu via libgme [no]
 212   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 213   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 214   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 215   --enable-libmodplug      enable ModPlug via libmodplug [no]
 216   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 217   --enable-libnut          enable NUT (de)muxing via libnut,
 218                            native (de)muxer exists [no]
 219   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 220   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 221   --enable-libopencv       enable video filtering via libopencv [no]
 222   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 223   --enable-libopus         enable Opus decoding via libopus [no]
 224   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 225   --enable-libquvi         enable quvi input via libquvi [no]
 226   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 227   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 228   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 229   --enable-libsoxr         enable Include libsoxr resampling [no]
 230   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 231   --enable-libssh          enable SFTP protocol via libssh [no]
 232   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 233   --enable-libtheora       enable Theora encoding via libtheora [no]
 234   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 235   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 236   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 237   --enable-libvidstab      enable video stabilization using vid.stab [no]
 238   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 239   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 240   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 241                            native implementation exists [no]
 242   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 243   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 244   --enable-libwebp         enable WebP encoding via libwebp [no]
 245   --enable-libx264         enable H.264 encoding via x264 [no]
 246   --enable-libx265         enable HEVC encoding via x265 [no]
 247   --enable-libxavs         enable AVS encoding via xavs [no]
 248   --enable-libxvid         enable Xvid encoding via xvidcore,
 249                            native MPEG-4/Xvid encoder exists [no]
 250   --enable-libzmq          enable message passing via libzmq [no]
 251   --enable-libzvbi         enable teletext support via libzvbi [no]
 252   --enable-decklink        enable Blackmagick DeckLink output [no]
 253   --enable-openal          enable OpenAL 1.1 capture support [no]
 254   --enable-opencl          enable OpenCL code
 255   --enable-opengl          enable OpenGL rendering [no]
 256   --enable-openssl         enable openssl [no]
 257   --enable-x11grab         enable X11 grabbing [no]
 258   --disable-xlib           disable xlib [autodetect]
 259   --disable-zlib           disable zlib [autodetect]
 260
 261 Toolchain options:
 262   --arch=ARCH              select architecture [$arch]
 263   --cpu=CPU                select the minimum required CPU (affects
 264                            instruction selection, may crash on older CPUs)
 265   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 266   --progs-suffix=SUFFIX    program name suffix []
 267   --enable-cross-compile   assume a cross-compiler is used
 268   --sysroot=PATH           root of cross-build tree
 269   --sysinclude=PATH        location of cross-build system headers
 270   --target-os=OS           compiler targets OS [$target_os]
 271   --target-exec=CMD        command to run executables on target
 272   --target-path=DIR        path to view of build directory on target
 273   --target-samples=DIR     path to samples directory on target
 274   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 275   --toolchain=NAME         set tool defaults according to NAME
 276   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 277   --nm=NM                  use nm tool NM [$nm_default]
 278   --ar=AR                  use archive tool AR [$ar_default]
 279   --as=AS                  use assembler AS [$as_default]
 280   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 281   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 282   --cc=CC                  use C compiler CC [$cc_default]
 283   --cxx=CXX                use C compiler CXX [$cxx_default]
 284   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 285   --ld=LD                  use linker LD [$ld_default]
 286   --pkg-config=PKGCONF     use pkg-config PKGCONF [$pkg_config_default]
 287   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 288   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
 289   --host-cc=HOSTCC         use host C compiler HOSTCC
 290   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 291   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 292   --host-ld=HOSTLD         use host linker HOSTLD
 293   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 294   --host-libs=HLIBS        use libs HLIBS when linking for host
 295   --host-os=OS             compiler host OS [$target_os]
 296   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 297   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 298   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 299   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 300   --extra-version=STRING   version string suffix []
 301   --optflags=OPTFLAGS      override optimization-related compiler flags
 302   --build-suffix=SUFFIX    library name suffix []
 303   --enable-pic             build position-independent code
 304   --enable-thumb           compile for Thumb instruction set
 305   --enable-lto             use link-time optimization
 306
 307 Advanced options (experts only):
 308   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 309   --disable-symver         disable symbol versioning
 310   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 311   --disable-safe-bitstream-reader
 312                            disable buffer boundary checking in bitreaders
 313                            (faster, but may crash)
 314   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 315   --enable-sram            allow use of on-chip SRAM
 316
 317 Optimization options (experts only):
 318   --disable-asm            disable all assembler optimizations
 319   --disable-altivec        disable AltiVec optimizations
 320   --disable-amd3dnow       disable 3DNow! optimizations
 321   --disable-amd3dnowext    disable 3DNow! extended optimizations
 322   --disable-mmx            disable MMX optimizations
 323   --disable-mmxext         disable MMXEXT optimizations
 324   --disable-sse            disable SSE optimizations
 325   --disable-sse2           disable SSE2 optimizations
 326   --disable-sse3           disable SSE3 optimizations
 327   --disable-ssse3          disable SSSE3 optimizations
 328   --disable-sse4           disable SSE4 optimizations
 329   --disable-sse42          disable SSE4.2 optimizations
 330   --disable-avx            disable AVX optimizations
 331   --disable-xop            disable XOP optimizations
 332   --disable-fma3           disable FMA3 optimizations
 333   --disable-fma4           disable FMA4 optimizations
 334   --disable-avx2           disable AVX2 optimizations
 335   --disable-armv5te        disable armv5te optimizations
 336   --disable-armv6          disable armv6 optimizations
 337   --disable-armv6t2        disable armv6t2 optimizations
 338   --disable-vfp            disable VFP optimizations
 339   --disable-neon           disable NEON optimizations
 340   --disable-inline-asm     disable use of inline assembler
 341   --disable-yasm           disable use of yasm assembler
 342   --disable-mips32r2       disable MIPS32R2 optimizations
 343   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 344   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 345   --disable-mipsfpu        disable floating point MIPS optimizations
 346   --disable-fast-unaligned consider unaligned accesses slow
 347
 348 Developer options (useful when working on FFmpeg itself):
 349   --disable-debug          disable debugging symbols
 350   --enable-debug=LEVEL     set the debug level [$debuglevel]
 351   --disable-optimizations  disable compiler optimizations
 352   --enable-extra-warnings  enable more compiler warnings
 353   --disable-stripping      disable stripping of executables and shared libraries
 354   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 355                            2 causes a slowdown at runtime.
 356   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 357   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 358                            leaks and errors, using the specified valgrind binary.
 359                            Cannot be combined with --target-exec
 360   --enable-ftrapv          Trap arithmetic overflows
 361   --samples=PATH           location of test samples for FATE, if not set use
 362                            \$FATE_SAMPLES at make invocation time.
 363   --enable-neon-clobber-test check NEON registers for clobbering (should be
 364                            used only for debugging purposes)
 365   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 366                            should be used only for debugging purposes)
 367   --enable-random          randomly enable/disable components
 368   --disable-random
 369   --enable-random=LIST     randomly enable/disable specific components or
 370   --disable-random=LIST    component groups. LIST is a comma-separated list
 371                            of NAME[:PROB] entries where NAME is a component
 372                            (group) and PROB the probability associated with
 373                            NAME (default 0.5).
 374   --random-seed=VALUE      seed value for --enable/disable-random
 375
 376 NOTE: Object files are built at the place where configure is launched.
 377 EOF
 378   exit 0
 379 }
 380
 381 quotes='""'
 382
 383 log(){
 384     echo "$@" >> $logfile
 385 }
 386
 387 log_file(){
 388     log BEGIN $1
 389     pr -n -t $1 >> $logfile
 390     log END $1
 391 }
 392
 393 echolog(){
 394     log "$@"
 395     echo "$@"
 396 }
 397
 398 warn(){
 399     log "WARNING: $*"
 400     WARNINGS="${WARNINGS}WARNING: $*\n"
 401 }
 402
 403 die(){
 404     echolog "$@"
 405     cat <<EOF
 406
 407 If you think configure made a mistake, make sure you are using the latest
 408 version from Git.  If the latest version fails, report the problem to the
 409 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 410 EOF
 411     if disabled logging; then
 412         cat <<EOF
 413 Rerun configure with logging enabled (do not use --disable-logging), and
 414 include the log this produces with your report.
 415 EOF
 416     else
 417         cat <<EOF
 418 Include the log file "$logfile" produced by configure as this will help
 419 solving the problem.
 420 EOF
 421     fi
 422     exit 1
 423 }
 424
 425 # Avoid locale weirdness, besides we really just want to translate ASCII.
 426 toupper(){
 427     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 428 }
 429
 430 tolower(){
 431     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 432 }
 433
 434 c_escape(){
 435     echo "$*" | sed 's/["\\]/\\\0/g'
 436 }
 437
 438 sh_quote(){
 439     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 440     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 441     echo "$v"
 442 }
 443
 444 cleanws(){
 445     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
 446 }
 447
 448 filter(){
 449     pat=$1
 450     shift
 451     for v; do
 452         eval "case $v in $pat) echo $v ;; esac"
 453     done
 454 }
 455
 456 filter_out(){
 457     pat=$1
 458     shift
 459     for v; do
 460         eval "case $v in $pat) ;; *) echo $v ;; esac"
 461     done
 462 }
 463
 464 map(){
 465     m=$1
 466     shift
 467     for v; do eval $m; done
 468 }
 469
 470 add_suffix(){
 471     suffix=$1
 472     shift
 473     for v; do echo ${v}${suffix}; done
 474 }
 475
 476 set_all(){
 477     value=$1
 478     shift
 479     for var in $*; do
 480         eval $var=$value
 481     done
 482 }
 483
 484 set_weak(){
 485     value=$1
 486     shift
 487     for var; do
 488         eval : \${$var:=$value}
 489     done
 490 }
 491
 492 sanitize_var_name(){
 493     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 494 }
 495
 496 set_safe(){
 497     var=$1
 498     shift
 499     eval $(sanitize_var_name "$var")='$*'
 500 }
 501
 502 get_safe(){
 503     eval echo \$$(sanitize_var_name "$1")
 504 }
 505
 506 pushvar(){
 507     for pvar in $*; do
 508         eval level=\${${pvar}_level:=0}
 509         eval ${pvar}_${level}="\$$pvar"
 510         eval ${pvar}_level=$(($level+1))
 511     done
 512 }
 513
 514 popvar(){
 515     for pvar in $*; do
 516         eval level=\${${pvar}_level:-0}
 517         test $level = 0 && continue
 518         eval level=$(($level-1))
 519         eval $pvar="\${${pvar}_${level}}"
 520         eval ${pvar}_level=$level
 521         eval unset ${pvar}_${level}
 522     done
 523 }
 524
 525 enable(){
 526     set_all yes $*
 527 }
 528
 529 disable(){
 530     set_all no $*
 531 }
 532
 533 enable_weak(){
 534     set_weak yes $*
 535 }
 536
 537 disable_weak(){
 538     set_weak no $*
 539 }
 540
 541 enable_safe(){
 542     for var; do
 543         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 544     done
 545 }
 546
 547 disable_safe(){
 548     for var; do
 549         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 550     done
 551 }
 552
 553 do_enable_deep(){
 554     for var; do
 555         enabled $var && continue
 556         eval sel="\$${var}_select"
 557         eval sgs="\$${var}_suggest"
 558         pushvar var sgs
 559         enable_deep $sel
 560         popvar sgs
 561         enable_deep_weak $sgs
 562         popvar var
 563     done
 564 }
 565
 566 enable_deep(){
 567     do_enable_deep $*
 568     enable $*
 569 }
 570
 571 enable_deep_weak(){
 572     for var; do
 573         disabled $var && continue
 574         pushvar var
 575         do_enable_deep $var
 576         popvar var
 577         enable_weak $var
 578     done
 579 }
 580
 581 enabled(){
 582     test "${1#!}" = "$1" && op== || op=!=
 583     eval test "x\$${1#!}" $op "xyes"
 584 }
 585
 586 disabled(){
 587     test "${1#!}" = "$1" && op== || op=!=
 588     eval test "x\$${1#!}" $op "xno"
 589 }
 590
 591 enabled_all(){
 592     for opt; do
 593         enabled $opt || return 1
 594     done
 595 }
 596
 597 disabled_all(){
 598     for opt; do
 599         disabled $opt || return 1
 600     done
 601 }
 602
 603 enabled_any(){
 604     for opt; do
 605         enabled $opt && return 0
 606     done
 607 }
 608
 609 disabled_any(){
 610     for opt; do
 611         disabled $opt && return 0
 612     done
 613     return 1
 614 }
 615
 616 set_default(){
 617     for opt; do
 618         eval : \${$opt:=\$${opt}_default}
 619     done
 620 }
 621
 622 is_in(){
 623     value=$1
 624     shift
 625     for var in $*; do
 626         [ $var = $value ] && return 0
 627     done
 628     return 1
 629 }
 630
 631 do_check_deps(){
 632     for cfg; do
 633         cfg="${cfg#!}"
 634         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 635         disabled ${cfg}_checking && continue
 636         enable ${cfg}_checking
 637         append allopts $cfg
 638
 639         eval dep_all="\$${cfg}_deps"
 640         eval dep_any="\$${cfg}_deps_any"
 641         eval dep_sel="\$${cfg}_select"
 642         eval dep_sgs="\$${cfg}_suggest"
 643         eval dep_ifa="\$${cfg}_if"
 644         eval dep_ifn="\$${cfg}_if_any"
 645
 646         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 647         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 648         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 649
 650         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 651         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 652         enabled_all  $dep_all || disable $cfg
 653         enabled_any  $dep_any || disable $cfg
 654         disabled_any $dep_sel && disable $cfg
 655
 656         if enabled $cfg; then
 657             enable_deep $dep_sel
 658             enable_deep_weak $dep_sgs
 659         fi
 660
 661         disable ${cfg}_checking
 662     done
 663 }
 664
 665 check_deps(){
 666     unset allopts
 667
 668     do_check_deps "$@"
 669
 670     for cfg in $allopts; do
 671         enabled $cfg || continue
 672         eval dep_extralibs="\$${cfg}_extralibs"
 673         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 674     done
 675 }
 676
 677 print_config(){
 678     pfx=$1
 679     files=$2
 680     shift 2
 681     map 'eval echo "$v \${$v:-no}"' "$@" |
 682     awk "BEGIN { split(\"$files\", files) }
 683         {
 684             c = \"$pfx\" toupper(\$1);
 685             v = \$2;
 686             sub(/yes/, 1, v);
 687             sub(/no/,  0, v);
 688             for (f in files) {
 689                 file = files[f];
 690                 if (file ~ /\\.h\$/) {
 691                     printf(\"#define %s %d\\n\", c, v) >>file;
 692                 } else if (file ~ /\\.asm\$/) {
 693                     printf(\"%%define %s %d\\n\", c, v) >>file;
 694                 } else if (file ~ /\\.mak\$/) {
 695                     n = -v ? \"\" : \"!\";
 696                     printf(\"%s%s=yes\\n\", n, c) >>file;
 697                 } else if (file ~ /\\.texi\$/) {
 698                     pre = -v ? \"\" : \"@c \";
 699                     yesno = \$2;
 700                     c2 = tolower(c);
 701                     gsub(/_/, \"-\", c2);
 702                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 703                 }
 704             }
 705         }"
 706 }
 707
 708 print_enabled(){
 709     suf=$1
 710     shift
 711     for v; do
 712         enabled $v && printf "%s\n" ${v%$suf};
 713     done
 714 }
 715
 716 append(){
 717     var=$1
 718     shift
 719     eval "$var=\"\$$var $*\""
 720 }
 721
 722 prepend(){
 723     var=$1
 724     shift
 725     eval "$var=\"$* \$$var\""
 726 }
 727
 728 add_cppflags(){
 729     append CPPFLAGS "$@"
 730 }
 731
 732 add_cflags(){
 733     append CFLAGS $($cflags_filter "$@")
 734 }
 735
 736 add_cxxflags(){
 737     append CXXFLAGS $($cflags_filter "$@")
 738 }
 739
 740 add_asflags(){
 741     append ASFLAGS $($asflags_filter "$@")
 742 }
 743
 744 add_ldflags(){
 745     append LDFLAGS $($ldflags_filter "$@")
 746 }
 747
 748 add_stripflags(){
 749     append ASMSTRIPFLAGS "$@"
 750 }
 751
 752 add_extralibs(){
 753     prepend extralibs $($ldflags_filter "$@")
 754 }
 755
 756 add_host_cppflags(){
 757     append host_cppflags "$@"
 758 }
 759
 760 add_host_cflags(){
 761     append host_cflags $($host_cflags_filter "$@")
 762 }
 763
 764 add_host_ldflags(){
 765     append host_ldflags $($host_ldflags_filter "$@")
 766 }
 767
 768 add_compat(){
 769     append compat_objs $1
 770     shift
 771     map 'add_cppflags -D$v' "$@"
 772 }
 773
 774 check_cmd(){
 775     log "$@"
 776     "$@" >> $logfile 2>&1
 777 }
 778
 779 check_stat(){
 780     log check_stat "$@"
 781     stat "$1" >> $logfile 2>&1
 782 }
 783
 784 cc_o(){
 785     eval printf '%s\\n' $CC_O
 786 }
 787
 788 cc_e(){
 789     eval printf '%s\\n' $CC_E
 790 }
 791
 792 check_cc(){
 793     log check_cc "$@"
 794     cat > $TMPC
 795     log_file $TMPC
 796     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 797 }
 798
 799 check_cxx(){
 800     log check_cxx "$@"
 801     cat > $TMPCPP
 802     log_file $TMPCPP
 803     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 804 }
 805
 806 check_oc(){
 807     log check_oc "$@"
 808     cat > $TMPM
 809     log_file $TMPM
 810     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
 811 }
 812
 813 check_cpp(){
 814     log check_cpp "$@"
 815     cat > $TMPC
 816     log_file $TMPC
 817     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 818 }
 819
 820 as_o(){
 821     eval printf '%s\\n' $AS_O
 822 }
 823
 824 check_as(){
 825     log check_as "$@"
 826     cat > $TMPS
 827     log_file $TMPS
 828     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 829 }
 830
 831 check_inline_asm(){
 832     log check_inline_asm "$@"
 833     name="$1"
 834     code="$2"
 835     shift 2
 836     disable $name
 837     check_cc "$@" <<EOF && enable $name
 838 void foo(void){ __asm__ volatile($code); }
 839 EOF
 840 }
 841
 842 check_insn(){
 843     log check_insn "$@"
 844     check_inline_asm ${1}_inline "\"$2\""
 845     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 846 }
 847
 848 check_yasm(){
 849     log check_yasm "$@"
 850     echo "$1" > $TMPS
 851     log_file $TMPS
 852     shift 1
 853     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 854 }
 855
 856 ld_o(){
 857     eval printf '%s\\n' $LD_O
 858 }
 859
 860 check_ld(){
 861     log check_ld "$@"
 862     type=$1
 863     shift 1
 864     flags=$(filter_out '-l*|*.so' $@)
 865     libs=$(filter '-l*|*.so' $@)
 866     check_$type $($cflags_filter $flags) || return
 867     flags=$($ldflags_filter $flags)
 868     libs=$($ldflags_filter $libs)
 869     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 870 }
 871
 872 print_include(){
 873     hdr=$1
 874     test "${hdr%.h}" = "${hdr}" &&
 875         echo "#include $hdr"    ||
 876         echo "#include <$hdr>"
 877 }
 878
 879 check_code(){
 880     log check_code "$@"
 881     check=$1
 882     headers=$2
 883     code=$3
 884     shift 3
 885     {
 886         for hdr in $headers; do
 887             print_include $hdr
 888         done
 889         echo "int main(void) { $code; return 0; }"
 890     } | check_$check "$@"
 891 }
 892
 893 check_cppflags(){
 894     log check_cppflags "$@"
 895     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 896 int x;
 897 EOF
 898 }
 899
 900 test_cflags(){
 901     log test_cflags "$@"
 902     set -- $($cflags_filter "$@")
 903     check_cc "$@" <<EOF
 904 int x;
 905 EOF
 906 }
 907
 908 check_cflags(){
 909     log check_cflags "$@"
 910     test_cflags "$@" && add_cflags "$@"
 911 }
 912
 913 check_cxxflags(){
 914     log check_cxxflags "$@"
 915     set -- $($cflags_filter "$@")
 916     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 917 int x;
 918 EOF
 919 }
 920
 921 test_ldflags(){
 922     log test_ldflags "$@"
 923     check_ld "cc" "$@" <<EOF
 924 int main(void){ return 0; }
 925 EOF
 926 }
 927
 928 check_ldflags(){
 929     log check_ldflags "$@"
 930     test_ldflags "$@" && add_ldflags "$@"
 931 }
 932
 933 test_stripflags(){
 934     log test_stripflags "$@"
 935     # call check_cc to get a fresh TMPO
 936     check_cc <<EOF
 937 int main(void) { return 0; }
 938 EOF
 939     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 940 }
 941
 942 check_stripflags(){
 943     log check_stripflags "$@"
 944     test_stripflags "$@" && add_stripflags "$@"
 945 }
 946
 947 check_header(){
 948     log check_header "$@"
 949     header=$1
 950     shift
 951     disable_safe $header
 952     check_cpp "$@" <<EOF && enable_safe $header
 953 #include <$header>
 954 int x;
 955 EOF
 956 }
 957
 958 check_header_oc(){
 959     log check_header_oc "$@"
 960     rm -f -- "$TMPO"
 961     header=$1
 962     shift
 963     disable_safe $header
 964     {
 965        echo "#include <$header>"
 966        echo "int main(void) { return 0; }"
 967     } | check_oc && check_stat "$TMPO" && enable_safe $headers
 968 }
 969
 970 check_func(){
 971     log check_func "$@"
 972     func=$1
 973     shift
 974     disable $func
 975     check_ld "cc" "$@" <<EOF && enable $func
 976 extern int $func();
 977 int main(void){ $func(); }
 978 EOF
 979 }
 980
 981 check_mathfunc(){
 982     log check_mathfunc "$@"
 983     func=$1
 984     narg=$2
 985     shift 2
 986     test $narg = 2 && args="f, g" || args="f"
 987     disable $func
 988     check_ld "cc" "$@" <<EOF && enable $func
 989 #include <math.h>
 990 float foo(float f, float g) { return $func($args); }
 991 int main(void){ return (int) foo; }
 992 EOF
 993 }
 994
 995 check_func_headers(){
 996     log check_func_headers "$@"
 997     headers=$1
 998     funcs=$2
 999     shift 2
1000     {
1001         for hdr in $headers; do
1002             print_include $hdr
1003         done
1004         for func in $funcs; do
1005             echo "long check_$func(void) { return (long) $func; }"
1006         done
1007         echo "int main(void) { return 0; }"
1008     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1009 }
1010
1011 check_class_headers_cpp(){
1012     log check_class_headers_cpp "$@"
1013     headers=$1
1014     classes=$2
1015     shift 2
1016     {
1017         for hdr in $headers; do
1018             echo "#include <$hdr>"
1019         done
1020         echo "int main(void) { "
1021         i=1
1022         for class in $classes; do
1023             echo "$class obj$i;"
1024             i=$(expr $i + 1)
1025         done
1026         echo "return 0; }"
1027     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1028 }
1029
1030 check_cpp_condition(){
1031     log check_cpp_condition "$@"
1032     header=$1
1033     condition=$2
1034     shift 2
1035     check_cpp "$@" <<EOF
1036 #include <$header>
1037 #if !($condition)
1038 #error "unsatisfied condition: $condition"
1039 #endif
1040 EOF
1041 }
1042
1043 check_lib(){
1044     log check_lib "$@"
1045     header="$1"
1046     func="$2"
1047     shift 2
1048     check_header $header && check_func $func "$@" && add_extralibs "$@"
1049 }
1050
1051 check_lib2(){
1052     log check_lib2 "$@"
1053     headers="$1"
1054     funcs="$2"
1055     shift 2
1056     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1057 }
1058
1059 check_lib_cpp(){
1060     log check_lib_cpp "$@"
1061     headers="$1"
1062     classes="$2"
1063     shift 2
1064     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1065 }
1066
1067 check_pkg_config(){
1068     log check_pkg_config "$@"
1069     pkgandversion="$1"
1070     pkg="${1%% *}"
1071     headers="$2"
1072     funcs="$3"
1073     shift 3
1074     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1075     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1076     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1077     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1078         set_safe ${pkg}_cflags $pkg_cflags   &&
1079         set_safe ${pkg}_libs   $pkg_libs
1080 }
1081
1082 check_exec(){
1083     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1084 }
1085
1086 check_exec_crash(){
1087     code=$(cat)
1088
1089     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1090     # are safe but may not be available everywhere.  Thus we use
1091     # raise(SIGTERM) instead.  The check is run in a subshell so we
1092     # can redirect the "Terminated" message from the shell.  SIGBUS
1093     # is not defined by standard C so it is used conditionally.
1094
1095     (check_exec "$@") >> $logfile 2>&1 <<EOF
1096 #include <signal.h>
1097 static void sighandler(int sig){
1098     raise(SIGTERM);
1099 }
1100 int foo(void){
1101     $code
1102 }
1103 int (*func_ptr)(void) = foo;
1104 int main(void){
1105     signal(SIGILL, sighandler);
1106     signal(SIGFPE, sighandler);
1107     signal(SIGSEGV, sighandler);
1108 #ifdef SIGBUS
1109     signal(SIGBUS, sighandler);
1110 #endif
1111     return func_ptr();
1112 }
1113 EOF
1114 }
1115
1116 check_type(){
1117     log check_type "$@"
1118     headers=$1
1119     type=$2
1120     shift 2
1121     disable_safe "$type"
1122     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1123 }
1124
1125 check_struct(){
1126     log check_struct "$@"
1127     headers=$1
1128     struct=$2
1129     member=$3
1130     shift 3
1131     disable_safe "${struct}_${member}"
1132     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1133         enable_safe "${struct}_${member}"
1134 }
1135
1136 check_builtin(){
1137     log check_builtin "$@"
1138     name=$1
1139     headers=$2
1140     builtin=$3
1141     shift 3
1142     disable "$name"
1143     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1144 }
1145
1146 check_compile_assert(){
1147     log check_compile_assert "$@"
1148     name=$1
1149     headers=$2
1150     condition=$3
1151     shift 3
1152     disable "$name"
1153     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1154 }
1155
1156 require(){
1157     name="$1"
1158     header="$2"
1159     func="$3"
1160     shift 3
1161     check_lib $header $func "$@" || die "ERROR: $name not found"
1162 }
1163
1164 require2(){
1165     name="$1"
1166     headers="$2"
1167     func="$3"
1168     shift 3
1169     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1170 }
1171
1172 require_cpp(){
1173     name="$1"
1174     headers="$2"
1175     classes="$3"
1176     shift 3
1177     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1178 }
1179
1180 require_pkg_config(){
1181     pkg="$1"
1182     check_pkg_config "$@" || die "ERROR: $pkg not found"
1183     add_cflags    $(get_safe ${pkg}_cflags)
1184     add_extralibs $(get_safe ${pkg}_libs)
1185 }
1186
1187 require_libfreetype(){
1188     log require_libfreetype "$@"
1189     pkg="freetype2"
1190     check_cmd $pkg_config --exists --print-errors $pkg \
1191       || die "ERROR: $pkg not found"
1192     pkg_cflags=$($pkg_config --cflags $pkg)
1193     pkg_libs=$($pkg_config --libs $pkg)
1194     {
1195         echo "#include <ft2build.h>"
1196         echo "#include FT_FREETYPE_H"
1197         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1198         echo "int main(void) { return 0; }"
1199     } | check_ld "cc" $pkg_cflags $pkg_libs \
1200       && set_safe ${pkg}_cflags $pkg_cflags \
1201       && set_safe ${pkg}_libs   $pkg_libs \
1202       || die "ERROR: $pkg not found"
1203     add_cflags    $(get_safe ${pkg}_cflags)
1204     add_extralibs $(get_safe ${pkg}_libs)
1205 }
1206
1207 hostcc_e(){
1208     eval printf '%s\\n' $HOSTCC_E
1209 }
1210
1211 hostcc_o(){
1212     eval printf '%s\\n' $HOSTCC_O
1213 }
1214
1215 check_host_cc(){
1216     log check_host_cc "$@"
1217     cat > $TMPC
1218     log_file $TMPC
1219     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1220 }
1221
1222 check_host_cpp(){
1223     log check_host_cpp "$@"
1224     cat > $TMPC
1225     log_file $TMPC
1226     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1227 }
1228
1229 check_host_cppflags(){
1230     log check_host_cppflags "$@"
1231     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1232 int x;
1233 EOF
1234 }
1235
1236 check_host_cflags(){
1237     log check_host_cflags "$@"
1238     set -- $($host_cflags_filter "$@")
1239     check_host_cc "$@" <<EOF && append host_cflags "$@"
1240 int x;
1241 EOF
1242 }
1243
1244 check_host_cpp_condition(){
1245     log check_host_cpp_condition "$@"
1246     header=$1
1247     condition=$2
1248     shift 2
1249     check_host_cpp "$@" <<EOF
1250 #include <$header>
1251 #if !($condition)
1252 #error "unsatisfied condition: $condition"
1253 #endif
1254 EOF
1255 }
1256
1257 apply(){
1258     file=$1
1259     shift
1260     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1261 }
1262
1263 cp_if_changed(){
1264     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1265     mkdir -p "$(dirname $2)"
1266     $cp_f "$1" "$2"
1267 }
1268
1269 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1270 # system-dependent things.
1271
1272 COMPONENT_LIST="
1273     bsfs
1274     decoders
1275     demuxers
1276     encoders
1277     filters
1278     hwaccels
1279     indevs
1280     muxers
1281     outdevs
1282     parsers
1283     protocols
1284 "
1285
1286 EXAMPLE_LIST="
1287     avio_reading_example
1288     decoding_encoding_example
1289     demuxing_decoding_example
1290     filter_audio_example
1291     filtering_audio_example
1292     filtering_video_example
1293     metadata_example
1294     muxing_example
1295     remuxing_example
1296     resampling_audio_example
1297     scaling_video_example
1298     transcode_aac_example
1299     transcoding_example
1300 "
1301
1302 EXTERNAL_LIBRARY_LIST="
1303     avisynth
1304     bzlib
1305     crystalhd
1306     decklink
1307     frei0r
1308     gnutls
1309     iconv
1310     ladspa
1311     libaacplus
1312     libass
1313     libbluray
1314     libcaca
1315     libcdio
1316     libcelt
1317     libdc1394
1318     libfaac
1319     libfdk_aac
1320     libflite
1321     libfontconfig
1322     libfreetype
1323     libgme
1324     libgsm
1325     libiec61883
1326     libilbc
1327     libmodplug
1328     libmp3lame
1329     libnut
1330     libopencore_amrnb
1331     libopencore_amrwb
1332     libopencv
1333     libopenjpeg
1334     libopus
1335     libpulse
1336     libquvi
1337     librtmp
1338     libschroedinger
1339     libshine
1340     libsoxr
1341     libspeex
1342     libssh
1343     libstagefright_h264
1344     libtheora
1345     libtwolame
1346     libutvideo
1347     libv4l2
1348     libvidstab
1349     libvo_aacenc
1350     libvo_amrwbenc
1351     libvorbis
1352     libvpx
1353     libwavpack
1354     libwebp
1355     libx264
1356     libx265
1357     libxavs
1358     libxvid
1359     libzmq
1360     libzvbi
1361     openal
1362     opencl
1363     opengl
1364     openssl
1365     x11grab
1366     xlib
1367     zlib
1368 "
1369
1370 DOCUMENT_LIST="
1371     doc
1372     htmlpages
1373     manpages
1374     podpages
1375     txtpages
1376 "
1377
1378 FEATURE_LIST="
1379     ftrapv
1380     gray
1381     hardcoded_tables
1382     runtime_cpudetect
1383     safe_bitstream_reader
1384     shared
1385     small
1386     sram
1387     static
1388     swscale_alpha
1389 "
1390
1391 HWACCEL_LIST="
1392     dxva2
1393     vaapi
1394     vda
1395     vdpau
1396     xvmc
1397 "
1398
1399 LIBRARY_LIST="
1400     avcodec
1401     avdevice
1402     avfilter
1403     avformat
1404     avresample
1405     avutil
1406     postproc
1407     swresample
1408     swscale
1409 "
1410
1411 LICENSE_LIST="
1412     gpl
1413     nonfree
1414     version3
1415 "
1416
1417 PROGRAM_LIST="
1418     ffplay
1419     ffprobe
1420     ffserver
1421     ffmpeg
1422 "
1423
1424 SUBSYSTEM_LIST="
1425     dct
1426     dwt
1427     error_resilience
1428     fast_unaligned
1429     fft
1430     lsp
1431     lzo
1432     mdct
1433     network
1434     rdft
1435 "
1436
1437 CONFIG_LIST="
1438     $COMPONENT_LIST
1439     $DOCUMENT_LIST
1440     $EXAMPLE_LIST
1441     $EXTERNAL_LIBRARY_LIST
1442     $FEATURE_LIST
1443     $HWACCEL_LIST
1444     $LICENSE_LIST
1445     $LIBRARY_LIST
1446     $PROGRAM_LIST
1447     $SUBSYSTEM_LIST
1448     fontconfig
1449     incompatible_libav_abi
1450     memalign_hack
1451     memory_poisoning
1452     neon_clobber_test
1453     pic
1454     pod2man
1455     raise_major
1456     thumb
1457     xmm_clobber_test
1458 "
1459
1460 THREADS_LIST="
1461     pthreads
1462     os2threads
1463     w32threads
1464 "
1465
1466 ATOMICS_LIST="
1467     atomics_gcc
1468     atomics_suncc
1469     atomics_win32
1470 "
1471
1472 ARCH_LIST="
1473     aarch64
1474     alpha
1475     arm
1476     avr32
1477     avr32_ap
1478     avr32_uc
1479     bfin
1480     ia64
1481     m68k
1482     mips
1483     mips64
1484     parisc
1485     ppc
1486     ppc64
1487     s390
1488     sh4
1489     sparc
1490     sparc64
1491     tilegx
1492     tilepro
1493     tomi
1494     x86
1495     x86_32
1496     x86_64
1497 "
1498
1499 ARCH_EXT_LIST_ARM="
1500     armv5te
1501     armv6
1502     armv6t2
1503     armv8
1504     neon
1505     vfp
1506     vfpv3
1507 "
1508
1509 ARCH_EXT_LIST_MIPS="
1510     mipsfpu
1511     mips32r2
1512     mipsdspr1
1513     mipsdspr2
1514 "
1515
1516 ARCH_EXT_LIST_X86_SIMD="
1517     amd3dnow
1518     amd3dnowext
1519     avx
1520     avx2
1521     fma3
1522     fma4
1523     mmx
1524     mmxext
1525     sse
1526     sse2
1527     sse3
1528     sse4
1529     sse42
1530     ssse3
1531     xop
1532 "
1533
1534 ARCH_EXT_LIST_PPC="
1535     altivec
1536     dcbzl
1537     ldbrx
1538     ppc4xx
1539 "
1540
1541 ARCH_EXT_LIST_X86="
1542     $ARCH_EXT_LIST_X86_SIMD
1543     cpunop
1544     i686
1545 "
1546
1547 ARCH_EXT_LIST="
1548     $ARCH_EXT_LIST_ARM
1549     $ARCH_EXT_LIST_PPC
1550     $ARCH_EXT_LIST_X86
1551     $ARCH_EXT_LIST_MIPS
1552     loongson
1553 "
1554
1555 ARCH_FEATURES="
1556     aligned_stack
1557     fast_64bit
1558     fast_clz
1559     fast_cmov
1560     local_aligned_8
1561     local_aligned_16
1562     local_aligned_32
1563 "
1564
1565 BUILTIN_LIST="
1566     atomic_cas_ptr
1567     machine_rw_barrier
1568     MemoryBarrier
1569     mm_empty
1570     rdtsc
1571     sarestart
1572     sync_val_compare_and_swap
1573 "
1574 HAVE_LIST_CMDLINE="
1575     inline_asm
1576     symver
1577     yasm
1578 "
1579
1580 HAVE_LIST_PUB="
1581     bigendian
1582     fast_unaligned
1583     incompatible_libav_abi
1584 "
1585
1586 HEADERS_LIST="
1587     alsa_asoundlib_h
1588     altivec_h
1589     arpa_inet_h
1590     asm_types_h
1591     cdio_paranoia_h
1592     cdio_paranoia_paranoia_h
1593     CL_cl_h
1594     dev_bktr_ioctl_bt848_h
1595     dev_bktr_ioctl_meteor_h
1596     dev_ic_bt8xx_h
1597     dev_video_bktr_ioctl_bt848_h
1598     dev_video_meteor_ioctl_meteor_h
1599     direct_h
1600     dlfcn_h
1601     dxva_h
1602     ES2_gl_h
1603     gsm_h
1604     io_h
1605     mach_mach_time_h
1606     machine_ioctl_bt848_h
1607     machine_ioctl_meteor_h
1608     malloc_h
1609     openjpeg_1_5_openjpeg_h
1610     OpenGL_gl3_h
1611     poll_h
1612     sndio_h
1613     soundcard_h
1614     sys_mman_h
1615     sys_param_h
1616     sys_resource_h
1617     sys_select_h
1618     sys_soundcard_h
1619     sys_time_h
1620     sys_un_h
1621     sys_videoio_h
1622     termios_h
1623     unistd_h
1624     windows_h
1625     winsock2_h
1626 "
1627
1628 MATH_FUNCS="
1629     atanf
1630     atan2f
1631     cbrt
1632     cbrtf
1633     cosf
1634     exp2
1635     exp2f
1636     expf
1637     isinf
1638     isnan
1639     ldexpf
1640     llrint
1641     llrintf
1642     log2
1643     log2f
1644     log10f
1645     lrint
1646     lrintf
1647     powf
1648     rint
1649     round
1650     roundf
1651     sinf
1652     trunc
1653     truncf
1654 "
1655
1656 SYSTEM_FUNCS="
1657     access
1658     aligned_malloc
1659     clock_gettime
1660     closesocket
1661     CommandLineToArgvW
1662     CryptGenRandom
1663     dlopen
1664     fcntl
1665     flt_lim
1666     fork
1667     getaddrinfo
1668     gethrtime
1669     getopt
1670     GetProcessAffinityMask
1671     GetProcessMemoryInfo
1672     GetProcessTimes
1673     getrusage
1674     getservbyport
1675     GetSystemTimeAsFileTime
1676     gettimeofday
1677     glob
1678     glXGetProcAddress
1679     inet_aton
1680     isatty
1681     jack_port_get_latency_range
1682     kbhit
1683     localtime_r
1684     lzo1x_999_compress
1685     mach_absolute_time
1686     MapViewOfFile
1687     memalign
1688     mkstemp
1689     mmap
1690     mprotect
1691     nanosleep
1692     PeekNamedPipe
1693     posix_memalign
1694     pthread_cancel
1695     sched_getaffinity
1696     SetConsoleTextAttribute
1697     setmode
1698     setrlimit
1699     Sleep
1700     strerror_r
1701     sysconf
1702     sysctl
1703     usleep
1704     VirtualAlloc
1705     wglGetProcAddress
1706 "
1707
1708 TOOLCHAIN_FEATURES="
1709     asm_mod_q
1710     attribute_may_alias
1711     attribute_packed
1712     ebp_available
1713     ebx_available
1714     gnu_as
1715     gnu_windres
1716     ibm_asm
1717     inline_asm_labels
1718     inline_asm_nonlocal_labels
1719     inline_asm_direct_symbol_refs
1720     pragma_deprecated
1721     rsync_contimeout
1722     symver_asm_label
1723     symver_gnu_asm
1724     vfp_args
1725     xform_asm
1726     xmm_clobbers
1727 "
1728
1729 TYPES_LIST="
1730     socklen_t
1731     struct_addrinfo
1732     struct_group_source_req
1733     struct_ip_mreq_source
1734     struct_ipv6_mreq
1735     struct_pollfd
1736     struct_rusage_ru_maxrss
1737     struct_sctp_event_subscribe
1738     struct_sockaddr_in6
1739     struct_sockaddr_sa_len
1740     struct_sockaddr_storage
1741     struct_stat_st_mtim_tv_nsec
1742     struct_v4l2_frmivalenum_discrete
1743 "
1744
1745 HAVE_LIST="
1746     $ARCH_EXT_LIST
1747     $(add_suffix _external $ARCH_EXT_LIST)
1748     $(add_suffix _inline   $ARCH_EXT_LIST)
1749     $ARCH_FEATURES
1750     $ATOMICS_LIST
1751     $BUILTIN_LIST
1752     $HAVE_LIST_CMDLINE
1753     $HAVE_LIST_PUB
1754     $HEADERS_LIST
1755     $MATH_FUNCS
1756     $SYSTEM_FUNCS
1757     $THREADS_LIST
1758     $TOOLCHAIN_FEATURES
1759     $TYPES_LIST
1760     atomics_native
1761     dos_paths
1762     libc_msvcrt
1763     libdc1394_1
1764     libdc1394_2
1765     makeinfo
1766     perl
1767     pod2man
1768     sdl
1769     texi2html
1770     threads
1771     vdpau_x11
1772     xlib
1773 "
1774
1775 # options emitted with CONFIG_ prefix but not available on the command line
1776 CONFIG_EXTRA="
1777     aandcttables
1778     ac3dsp
1779     audio_frame_queue
1780     cabac
1781     dsputil
1782     exif
1783     frame_thread_encoder
1784     gcrypt
1785     golomb
1786     gplv3
1787     h263dsp
1788     h264chroma
1789     h264dsp
1790     h264pred
1791     h264qpel
1792     hpeldsp
1793     huffman
1794     intrax8
1795     lgplv3
1796     llviddsp
1797     lpc
1798     mpegaudio
1799     mpegaudiodsp
1800     mpegvideo
1801     mpegvideoenc
1802     nettle
1803     rangecoder
1804     riffdec
1805     riffenc
1806     rtpdec
1807     rtpenc_chain
1808     sinewin
1809     tpeldsp
1810     videodsp
1811     vp3dsp
1812 "
1813
1814 CMDLINE_SELECT="
1815     $ARCH_EXT_LIST
1816     $CONFIG_LIST
1817     $HAVE_LIST_CMDLINE
1818     $THREADS_LIST
1819     asm
1820     cross_compile
1821     debug
1822     extra_warnings
1823     logging
1824     lto
1825     optimizations
1826     rpath
1827     stripping
1828 "
1829
1830 PATHS_LIST="
1831     bindir
1832     datadir
1833     docdir
1834     incdir
1835     libdir
1836     mandir
1837     prefix
1838     shlibdir
1839 "
1840
1841 CMDLINE_SET="
1842     $PATHS_LIST
1843     ar
1844     arch
1845     as
1846     assert_level
1847     build_suffix
1848     cc
1849     cpu
1850     cross_prefix
1851     cxx
1852     dep_cc
1853     extra_version
1854     gas
1855     host_cc
1856     host_cflags
1857     host_ld
1858     host_ldflags
1859     host_libs
1860     host_os
1861     install
1862     ld
1863     logfile
1864     malloc_prefix
1865     nm
1866     optflags
1867     pkg_config
1868     pkg_config_flags
1869     progs_suffix
1870     random_seed
1871     ranlib
1872     samples
1873     strip
1874     sysinclude
1875     sysroot
1876     target_exec
1877     target_os
1878     target_path
1879     target_samples
1880     tempprefix
1881     toolchain
1882     valgrind
1883     yasmexe
1884 "
1885
1886 CMDLINE_APPEND="
1887     extra_cflags
1888     extra_cxxflags
1889     host_cppflags
1890 "
1891
1892 # code dependency declarations
1893
1894 # architecture extensions
1895
1896 armv5te_deps="arm"
1897 armv6_deps="arm"
1898 armv6t2_deps="arm"
1899 armv8_deps="aarch64"
1900 neon_deps_any="aarch64 arm"
1901 vfp_deps_any="aarch64 arm"
1902 vfpv3_deps="vfp"
1903
1904 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1905
1906 mipsfpu_deps="mips"
1907 mips32r2_deps="mips"
1908 mipsdspr1_deps="mips"
1909 mipsdspr2_deps="mips"
1910
1911 altivec_deps="ppc"
1912 ppc4xx_deps="ppc"
1913
1914 cpunop_deps="i686"
1915 x86_64_select="i686"
1916 x86_64_suggest="fast_cmov"
1917
1918 amd3dnow_deps="mmx"
1919 amd3dnowext_deps="amd3dnow"
1920 i686_deps="x86"
1921 mmx_deps="x86"
1922 mmxext_deps="mmx"
1923 sse_deps="mmxext"
1924 sse2_deps="sse"
1925 sse3_deps="sse2"
1926 ssse3_deps="sse3"
1927 sse4_deps="ssse3"
1928 sse42_deps="sse4"
1929 avx_deps="sse42"
1930 xop_deps="avx"
1931 fma3_deps="avx"
1932 fma4_deps="avx"
1933 avx2_deps="avx"
1934
1935 mmx_external_deps="yasm"
1936 mmx_inline_deps="inline_asm"
1937 mmx_suggest="mmx_external mmx_inline"
1938
1939 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1940     eval dep=\$${ext}_deps
1941     eval ${ext}_external_deps='"${dep}_external"'
1942     eval ${ext}_inline_deps='"${dep}_inline"'
1943     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1944 done
1945
1946 aligned_stack_if_any="aarch64 ppc x86"
1947 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1948 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1949 fast_unaligned_if_any="aarch64 ppc x86"
1950
1951 need_memalign="altivec neon sse"
1952
1953 # system capabilities
1954 log2_deps="!libc_msvcrt"
1955
1956 symver_if_any="symver_asm_label symver_gnu_asm"
1957
1958 # threading support
1959 atomics_gcc_if="sync_val_compare_and_swap"
1960 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1961 atomics_win32_if="MemoryBarrier"
1962 atomics_native_if_any="$ATOMICS_LIST"
1963 w32threads_deps="atomics_native"
1964 threads_if_any="$THREADS_LIST"
1965
1966 # subsystems
1967 dct_select="rdft"
1968 error_resilience_select="dsputil"
1969 frame_thread_encoder_deps="encoders threads"
1970 mdct_select="fft"
1971 rdft_select="fft"
1972 mpegaudio_select="mpegaudiodsp"
1973 mpegaudiodsp_select="dct"
1974 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1975 mpegvideoenc_select="dsputil mpegvideo"
1976
1977 # decoders / encoders
1978 aac_decoder_select="mdct sinewin"
1979 aac_encoder_select="audio_frame_queue mdct sinewin"
1980 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1981 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1982 ac3_fixed_decoder_select="mdct ac3dsp ac3_parser dsputil"
1983 ac3_encoder_select="mdct ac3dsp dsputil"
1984 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1985 aic_decoder_select="dsputil golomb"
1986 alac_encoder_select="lpc"
1987 als_decoder_select="dsputil"
1988 amrnb_decoder_select="lsp"
1989 amrwb_decoder_select="lsp"
1990 amv_decoder_select="sp5x_decoder exif"
1991 amv_encoder_select="aandcttables"
1992 ape_decoder_select="dsputil"
1993 asv1_decoder_select="dsputil"
1994 asv1_encoder_select="dsputil"
1995 asv2_decoder_select="dsputil"
1996 asv2_encoder_select="dsputil"
1997 atrac1_decoder_select="mdct sinewin"
1998 atrac3_decoder_select="mdct"
1999 atrac3p_decoder_select="mdct sinewin"
2000 avrn_decoder_select="exif"
2001 bink_decoder_select="dsputil hpeldsp"
2002 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
2003 binkaudio_rdft_decoder_select="mdct rdft sinewin"
2004 cavs_decoder_select="dsputil golomb h264chroma videodsp"
2005 cllc_decoder_select="dsputil"
2006 comfortnoise_encoder_select="lpc"
2007 cook_decoder_select="dsputil mdct sinewin"
2008 cscd_decoder_select="lzo"
2009 cscd_decoder_suggest="zlib"
2010 dca_decoder_select="mdct"
2011 dirac_decoder_select="dsputil dwt golomb videodsp"
2012 dnxhd_decoder_select="dsputil"
2013 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
2014 dvvideo_decoder_select="dsputil"
2015 dvvideo_encoder_select="dsputil"
2016 dxa_decoder_select="zlib"
2017 eac3_decoder_select="ac3_decoder"
2018 eac3_encoder_select="ac3_encoder"
2019 eamad_decoder_select="aandcttables dsputil mpegvideo"
2020 eatgq_decoder_select="aandcttables"
2021 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
2022 exr_decoder_select="zlib"
2023 ffv1_decoder_select="golomb rangecoder"
2024 ffv1_encoder_select="rangecoder"
2025 ffvhuff_decoder_select="huffyuv_decoder"
2026 ffvhuff_encoder_select="huffyuv_encoder"
2027 fic_decoder_select="golomb"
2028 flac_decoder_select="golomb"
2029 flac_encoder_select="dsputil golomb lpc"
2030 flashsv_decoder_select="zlib"
2031 flashsv_encoder_select="zlib"
2032 flashsv2_encoder_select="zlib"
2033 flashsv2_decoder_select="zlib"
2034 flv_decoder_select="h263_decoder"
2035 flv_encoder_select="h263_encoder"
2036 fourxm_decoder_select="dsputil"
2037 fraps_decoder_select="dsputil huffman"
2038 g2m_decoder_select="dsputil zlib"
2039 g729_decoder_select="dsputil"
2040 h261_decoder_select="error_resilience mpegvideo"
2041 h261_encoder_select="aandcttables mpegvideoenc"
2042 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
2043 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2044 h263i_decoder_select="h263_decoder"
2045 h263p_encoder_select="h263_encoder"
2046 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2047 h264_decoder_suggest="error_resilience"
2048 hevc_decoder_select="cabac dsputil golomb videodsp"
2049 huffyuv_decoder_select="dsputil llviddsp"
2050 huffyuv_encoder_select="dsputil huffman llviddsp"
2051 iac_decoder_select="imc_decoder"
2052 imc_decoder_select="dsputil fft mdct sinewin"
2053 indeo3_decoder_select="hpeldsp"
2054 interplay_video_decoder_select="hpeldsp"
2055 jpegls_decoder_select="golomb mjpeg_decoder"
2056 jpegls_encoder_select="golomb"
2057 jv_decoder_select="dsputil"
2058 lagarith_decoder_select="dsputil"
2059 ljpeg_encoder_select="aandcttables mpegvideoenc"
2060 loco_decoder_select="golomb"
2061 mdec_decoder_select="dsputil error_resilience mpegvideo"
2062 metasound_decoder_select="lsp mdct sinewin"
2063 mimic_decoder_select="dsputil hpeldsp"
2064 mjpeg_decoder_select="dsputil hpeldsp exif"
2065 mjpeg_encoder_select="aandcttables mpegvideoenc"
2066 mjpegb_decoder_select="mjpeg_decoder"
2067 mlp_decoder_select="mlp_parser"
2068 motionpixels_decoder_select="dsputil"
2069 mp1_decoder_select="mpegaudio"
2070 mp1float_decoder_select="mpegaudio"
2071 mp2_decoder_select="mpegaudio"
2072 mp2float_decoder_select="mpegaudio"
2073 mp3_decoder_select="mpegaudio"
2074 mp3adu_decoder_select="mpegaudio"
2075 mp3adufloat_decoder_select="mpegaudio"
2076 mp3float_decoder_select="mpegaudio"
2077 mp3on4_decoder_select="mpegaudio"
2078 mp3on4float_decoder_select="mpegaudio"
2079 mpc7_decoder_select="dsputil mpegaudiodsp"
2080 mpc8_decoder_select="mpegaudiodsp"
2081 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2082 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2083 mpeg1video_decoder_select="error_resilience mpegvideo"
2084 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2085 mpeg2video_decoder_select="error_resilience mpegvideo"
2086 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2087 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2088 mpeg4_encoder_select="h263_encoder"
2089 msmpeg4v1_decoder_select="h263_decoder"
2090 msmpeg4v2_decoder_select="h263_decoder"
2091 msmpeg4v2_encoder_select="h263_encoder"
2092 msmpeg4v3_decoder_select="h263_decoder"
2093 msmpeg4v3_encoder_select="h263_encoder"
2094 mss2_decoder_select="error_resilience vc1_decoder"
2095 mxpeg_decoder_select="mjpeg_decoder"
2096 nellymoser_decoder_select="mdct sinewin"
2097 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2098 nuv_decoder_select="dsputil lzo"
2099 on2avc_decoder_select="mdct"
2100 png_decoder_select="zlib"
2101 png_encoder_select="dsputil zlib"
2102 prores_decoder_select="dsputil"
2103 prores_encoder_select="dsputil"
2104 qcelp_decoder_select="lsp"
2105 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2106 ra_144_encoder_select="audio_frame_queue lpc"
2107 ralf_decoder_select="golomb"
2108 rawvideo_decoder_select="dsputil"
2109 rtjpeg_decoder_select="dsputil"
2110 rv10_decoder_select="error_resilience h263_decoder h263dsp"
2111 rv10_encoder_select="h263_encoder"
2112 rv20_decoder_select="error_resilience h263_decoder h263dsp"
2113 rv20_encoder_select="h263_encoder"
2114 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2115 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2116 shorten_decoder_select="golomb"
2117 sipr_decoder_select="lsp"
2118 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
2119 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
2120 sonic_decoder_select="golomb rangecoder"
2121 sonic_encoder_select="golomb rangecoder"
2122 sonic_ls_encoder_select="golomb"
2123 sp5x_decoder_select="mjpeg_decoder"
2124 svq1_decoder_select="hpeldsp"
2125 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2126 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2127 svq3_decoder_suggest="zlib"
2128 tak_decoder_select="dsputil"
2129 theora_decoder_select="vp3_decoder"
2130 thp_decoder_select="mjpeg_decoder"
2131 tiff_decoder_suggest="zlib"
2132 tiff_encoder_suggest="zlib"
2133 truehd_decoder_select="mlp_parser"
2134 truemotion2_decoder_select="dsputil"
2135 truespeech_decoder_select="dsputil"
2136 tscc_decoder_select="zlib"
2137 twinvq_decoder_select="mdct lsp sinewin"
2138 utvideo_decoder_select="dsputil"
2139 utvideo_encoder_select="dsputil huffman"
2140 vble_decoder_select="dsputil"
2141 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
2142 vc1image_decoder_select="vc1_decoder"
2143 vorbis_decoder_select="mdct"
2144 vorbis_encoder_select="mdct"
2145 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2146 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2147 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2148 vp6a_decoder_select="vp6_decoder"
2149 vp6f_decoder_select="vp6_decoder"
2150 vp7_decoder_select="h264pred videodsp"
2151 vp8_decoder_select="h264pred videodsp"
2152 vp9_decoder_select="videodsp"
2153 webp_decoder_select="vp8_decoder"
2154 wmapro_decoder_select="mdct sinewin"
2155 wmav1_decoder_select="mdct sinewin"
2156 wmav1_encoder_select="mdct sinewin"
2157 wmav2_decoder_select="mdct sinewin"
2158 wmav2_encoder_select="mdct sinewin"
2159 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2160 wmv1_decoder_select="h263_decoder"
2161 wmv1_encoder_select="h263_encoder"
2162 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2163 wmv2_encoder_select="h263_encoder"
2164 wmv3_decoder_select="vc1_decoder"
2165 wmv3image_decoder_select="wmv3_decoder"
2166 zerocodec_decoder_select="zlib"
2167 zlib_decoder_select="zlib"
2168 zlib_encoder_select="zlib"
2169 zmbv_decoder_select="zlib"
2170 zmbv_encoder_select="zlib"
2171
2172 # hardware accelerators
2173 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2174 dxva2_deps="dxva2api_h"
2175 vaapi_deps="va_va_h"
2176 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2177 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2178 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2179 xvmc_deps="X11_extensions_XvMClib_h"
2180
2181 h263_vaapi_hwaccel_deps="vaapi"
2182 h263_vaapi_hwaccel_select="h263_decoder"
2183 h263_vdpau_hwaccel_deps="vdpau"
2184 h263_vdpau_hwaccel_select="h263_decoder"
2185 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2186 h264_dxva2_hwaccel_deps="dxva2"
2187 h264_dxva2_hwaccel_select="h264_decoder"
2188 h264_vaapi_hwaccel_deps="vaapi"
2189 h264_vaapi_hwaccel_select="h264_decoder"
2190 h264_vda_decoder_deps="vda"
2191 h264_vda_decoder_select="h264_decoder"
2192 h264_vda_hwaccel_deps="vda"
2193 h264_vda_hwaccel_select="h264_decoder"
2194 h264_vdpau_decoder_deps="vdpau"
2195 h264_vdpau_decoder_select="h264_decoder"
2196 h264_vdpau_hwaccel_deps="vdpau"
2197 h264_vdpau_hwaccel_select="h264_decoder"
2198 mpeg_vdpau_decoder_deps="vdpau"
2199 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2200 mpeg_xvmc_hwaccel_deps="xvmc"
2201 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2202 mpeg1_vdpau_decoder_deps="vdpau"
2203 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2204 mpeg1_vdpau_hwaccel_deps="vdpau"
2205 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2206 mpeg1_xvmc_hwaccel_deps="xvmc"
2207 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2208 mpeg2_crystalhd_decoder_select="crystalhd"
2209 mpeg2_dxva2_hwaccel_deps="dxva2"
2210 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2211 mpeg2_vaapi_hwaccel_deps="vaapi"
2212 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2213 mpeg2_vdpau_hwaccel_deps="vdpau"
2214 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2215 mpeg2_xvmc_hwaccel_deps="xvmc"
2216 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2217 mpeg4_crystalhd_decoder_select="crystalhd"
2218 mpeg4_vaapi_hwaccel_deps="vaapi"
2219 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2220 mpeg4_vdpau_decoder_deps="vdpau"
2221 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2222 mpeg4_vdpau_hwaccel_deps="vdpau"
2223 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2224 msmpeg4_crystalhd_decoder_select="crystalhd"
2225 vc1_crystalhd_decoder_select="crystalhd"
2226 vc1_dxva2_hwaccel_deps="dxva2"
2227 vc1_dxva2_hwaccel_select="vc1_decoder"
2228 vc1_vaapi_hwaccel_deps="vaapi"
2229 vc1_vaapi_hwaccel_select="vc1_decoder"
2230 vc1_vdpau_decoder_deps="vdpau"
2231 vc1_vdpau_decoder_select="vc1_decoder"
2232 vc1_vdpau_hwaccel_deps="vdpau"
2233 vc1_vdpau_hwaccel_select="vc1_decoder"
2234 wmv3_crystalhd_decoder_select="crystalhd"
2235 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2236 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2237 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2238 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2239
2240 # parsers
2241 h264_parser_select="h264_decoder"
2242 hevc_parser_select="hevc_decoder"
2243 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
2244 mpegvideo_parser_select="error_resilience mpegvideo"
2245 vc1_parser_select="mpegvideo"
2246
2247 # external libraries
2248 libaacplus_encoder_deps="libaacplus"
2249 libcelt_decoder_deps="libcelt"
2250 libfaac_encoder_deps="libfaac"
2251 libfaac_encoder_select="audio_frame_queue"
2252 libfdk_aac_decoder_deps="libfdk_aac"
2253 libfdk_aac_encoder_deps="libfdk_aac"
2254 libfdk_aac_encoder_select="audio_frame_queue"
2255 libgme_demuxer_deps="libgme"
2256 libgsm_decoder_deps="libgsm"
2257 libgsm_encoder_deps="libgsm"
2258 libgsm_ms_decoder_deps="libgsm"
2259 libgsm_ms_encoder_deps="libgsm"
2260 libilbc_decoder_deps="libilbc"
2261 libilbc_encoder_deps="libilbc"
2262 libmodplug_demuxer_deps="libmodplug"
2263 libmp3lame_encoder_deps="libmp3lame"
2264 libmp3lame_encoder_select="audio_frame_queue"
2265 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2266 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2267 libopencore_amrnb_encoder_select="audio_frame_queue"
2268 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2269 libopenjpeg_decoder_deps="libopenjpeg"
2270 libopenjpeg_encoder_deps="libopenjpeg"
2271 libopus_decoder_deps="libopus"
2272 libopus_encoder_deps="libopus"
2273 libopus_encoder_select="audio_frame_queue"
2274 libquvi_demuxer_deps="libquvi"
2275 libschroedinger_decoder_deps="libschroedinger"
2276 libschroedinger_encoder_deps="libschroedinger"
2277 libshine_encoder_deps="libshine"
2278 libshine_encoder_select="audio_frame_queue"
2279 libspeex_decoder_deps="libspeex"
2280 libspeex_encoder_deps="libspeex"
2281 libspeex_encoder_select="audio_frame_queue"
2282 libstagefright_h264_decoder_deps="libstagefright_h264"
2283 libtheora_encoder_deps="libtheora"
2284 libtwolame_encoder_deps="libtwolame"
2285 libvo_aacenc_encoder_deps="libvo_aacenc"
2286 libvo_aacenc_encoder_select="audio_frame_queue"
2287 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2288 libvorbis_decoder_deps="libvorbis"
2289 libvorbis_encoder_deps="libvorbis"
2290 libvorbis_encoder_select="audio_frame_queue"
2291 libvpx_vp8_decoder_deps="libvpx"
2292 libvpx_vp8_encoder_deps="libvpx"
2293 libvpx_vp9_decoder_deps="libvpx"
2294 libvpx_vp9_encoder_deps="libvpx"
2295 libwavpack_encoder_deps="libwavpack"
2296 libwebp_encoder_deps="libwebp"
2297 libx264_encoder_deps="libx264"
2298 libx264rgb_encoder_deps="libx264"
2299 libx265_encoder_deps="libx265"
2300 libxavs_encoder_deps="libxavs"
2301 libxvid_encoder_deps="libxvid"
2302 libutvideo_decoder_deps="libutvideo"
2303 libutvideo_encoder_deps="libutvideo"
2304 libzvbi_teletext_decoder_deps="libzvbi"
2305
2306 # demuxers / muxers
2307 ac3_demuxer_select="ac3_parser"
2308 asf_demuxer_select="riffdec"
2309 asf_muxer_select="riffenc"
2310 asf_stream_muxer_select="asf_muxer"
2311 avi_demuxer_select="riffdec exif"
2312 avi_muxer_select="riffenc"
2313 avisynth_demuxer_deps="avisynth"
2314 avisynth_demuxer_select="riffdec"
2315 caf_demuxer_select="riffdec"
2316 dirac_demuxer_select="dirac_parser"
2317 dts_demuxer_select="dca_parser"
2318 dtshd_demuxer_select="dca_parser"
2319 dxa_demuxer_select="riffdec"
2320 eac3_demuxer_select="ac3_parser"
2321 f4v_muxer_select="mov_muxer"
2322 flac_demuxer_select="flac_parser"
2323 hds_muxer_select="flv_muxer"
2324 hls_muxer_select="mpegts_muxer"
2325 image2_alias_pix_demuxer_select="image2_demuxer"
2326 image2_brender_pix_demuxer_select="image2_demuxer"
2327 ipod_muxer_select="mov_muxer"
2328 ismv_muxer_select="mov_muxer"
2329 libnut_demuxer_deps="libnut"
2330 libnut_muxer_deps="libnut"
2331 matroska_audio_muxer_select="matroska_muxer"
2332 matroska_demuxer_select="riffdec"
2333 matroska_demuxer_suggest="bzlib lzo zlib"
2334 matroska_muxer_select="riffenc"
2335 mmf_muxer_select="riffenc"
2336 mov_demuxer_select="riffdec"
2337 mov_demuxer_suggest="zlib"
2338 mov_muxer_select="riffenc rtpenc_chain"
2339 mp3_demuxer_select="mpegaudio_parser"
2340 mp4_muxer_select="mov_muxer"
2341 mpegts_muxer_select="adts_muxer latm_muxer"
2342 mpegtsraw_demuxer_select="mpegts_demuxer"
2343 mxf_d10_muxer_select="mxf_muxer"
2344 nut_muxer_select="riffenc"
2345 nuv_demuxer_select="riffdec"
2346 ogg_demuxer_select="golomb"
2347 psp_muxer_select="mov_muxer"
2348 rtp_demuxer_select="sdp_demuxer"
2349 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2350 rtsp_demuxer_select="http_protocol rtpdec"
2351 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2352 sap_demuxer_select="sdp_demuxer"
2353 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2354 sdp_demuxer_select="rtpdec"
2355 smoothstreaming_muxer_select="ismv_muxer"
2356 spdif_muxer_select="aac_parser"
2357 tak_demuxer_select="tak_parser"
2358 tg2_muxer_select="mov_muxer"
2359 tgp_muxer_select="mov_muxer"
2360 vobsub_demuxer_select="mpegps_demuxer"
2361 w64_demuxer_select="wav_demuxer"
2362 w64_muxer_select="wav_muxer"
2363 wav_demuxer_select="riffdec"
2364 wav_muxer_select="riffenc"
2365 webm_muxer_select="riffenc"
2366 wtv_demuxer_select="riffdec"
2367 wtv_muxer_select="riffenc"
2368 xmv_demuxer_select="riffdec"
2369 xwma_demuxer_select="riffdec"
2370
2371 # indevs / outdevs
2372 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2373 alsa_outdev_deps="alsa_asoundlib_h"
2374 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2375 avfoundation_indev_select="avfoundation"
2376 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2377 caca_outdev_deps="libcaca"
2378 decklink_outdev_deps="decklink pthreads"
2379 decklink_outdev_extralibs="-lstdc++"
2380 dshow_indev_deps="IBaseFilter"
2381 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2382 dv1394_indev_deps="dv1394"
2383 dv1394_indev_select="dv_demuxer"
2384 fbdev_indev_deps="linux_fb_h"
2385 fbdev_outdev_deps="linux_fb_h"
2386 gdigrab_indev_deps="CreateDIBSection"
2387 gdigrab_indev_extralibs="-lgdi32"
2388 gdigrab_indev_select="bmp_decoder"
2389 iec61883_indev_deps="libiec61883"
2390 jack_indev_deps="jack_jack_h sem_timedwait"
2391 lavfi_indev_deps="avfilter"
2392 libcdio_indev_deps="libcdio"
2393 libdc1394_indev_deps="libdc1394"
2394 libv4l2_indev_deps="libv4l2"
2395 openal_indev_deps="openal"
2396 opengl_outdev_deps="opengl"
2397 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2398 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2399 pulse_indev_deps="libpulse"
2400 pulse_outdev_deps="libpulse"
2401 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2402 qtkit_indev_select="qtkit"
2403 sdl_outdev_deps="sdl"
2404 sndio_indev_deps="sndio_h"
2405 sndio_outdev_deps="sndio_h"
2406 v4l_indev_deps="linux_videodev_h"
2407 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2408 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2409 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2410 vfwcap_indev_extralibs="-lavicap32"
2411 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2412 xv_outdev_extralibs="-lXv -lX11 -lXext"
2413 x11grab_indev_deps="x11grab"
2414
2415 # protocols
2416 bluray_protocol_deps="libbluray"
2417 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2418 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2419 ffrtmpcrypt_protocol_select="tcp_protocol"
2420 ffrtmphttp_protocol_deps="!librtmp_protocol"
2421 ffrtmphttp_protocol_select="http_protocol"
2422 ftp_protocol_select="tcp_protocol"
2423 gopher_protocol_select="network"
2424 http_protocol_select="tcp_protocol"
2425 httpproxy_protocol_select="tcp_protocol"
2426 https_protocol_select="tls_protocol"
2427 librtmp_protocol_deps="librtmp"
2428 librtmpe_protocol_deps="librtmp"
2429 librtmps_protocol_deps="librtmp"
2430 librtmpt_protocol_deps="librtmp"
2431 librtmpte_protocol_deps="librtmp"
2432 libssh_protocol_deps="libssh"
2433 mmsh_protocol_select="http_protocol"
2434 mmst_protocol_select="network"
2435 rtmp_protocol_deps="!librtmp_protocol"
2436 rtmp_protocol_select="tcp_protocol"
2437 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2438 rtmps_protocol_deps="!librtmp_protocol"
2439 rtmps_protocol_select="tls_protocol"
2440 rtmpt_protocol_select="ffrtmphttp_protocol"
2441 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2442 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2443 rtp_protocol_select="udp_protocol"
2444 sctp_protocol_deps="struct_sctp_event_subscribe"
2445 sctp_protocol_select="network"
2446 srtp_protocol_select="rtp_protocol"
2447 tcp_protocol_select="network"
2448 tls_protocol_deps_any="openssl gnutls"
2449 tls_protocol_select="tcp_protocol"
2450 udp_protocol_select="network"
2451 unix_protocol_deps="sys_un_h"
2452 unix_protocol_select="network"
2453
2454 # filters
2455 aconvert_filter_deps="swresample"
2456 amovie_filter_deps="avcodec avformat"
2457 aresample_filter_deps="swresample"
2458 ass_filter_deps="libass"
2459 asyncts_filter_deps="avresample"
2460 atempo_filter_deps="avcodec"
2461 atempo_filter_select="rdft"
2462 azmq_filter_deps="libzmq"
2463 blackframe_filter_deps="gpl"
2464 boxblur_filter_deps="gpl"
2465 colormatrix_filter_deps="gpl"
2466 cropdetect_filter_deps="gpl"
2467 dctdnoiz_filter_deps="avcodec"
2468 dctdnoiz_filter_select="dct"
2469 delogo_filter_deps="gpl"
2470 deshake_filter_deps="avcodec"
2471 deshake_filter_select="dsputil"
2472 drawtext_filter_deps="libfreetype"
2473 ebur128_filter_deps="gpl"
2474 flite_filter_deps="libflite"
2475 frei0r_filter_deps="frei0r dlopen"
2476 frei0r_filter_extralibs='$ldl'
2477 frei0r_src_filter_deps="frei0r dlopen"
2478 frei0r_src_filter_extralibs='$ldl'
2479 geq_filter_deps="gpl"
2480 histeq_filter_deps="gpl"
2481 hqdn3d_filter_deps="gpl"
2482 interlace_filter_deps="gpl"
2483 kerndeint_filter_deps="gpl"
2484 ladspa_filter_deps="ladspa dlopen"
2485 mcdeint_filter_deps="avcodec gpl"
2486 movie_filter_deps="avcodec avformat"
2487 mp_filter_deps="gpl avcodec swscale inline_asm"
2488 mpdecimate_filter_deps="gpl avcodec"
2489 mptestsrc_filter_deps="gpl"
2490 negate_filter_deps="lut_filter"
2491 perspective_filter_deps="gpl"
2492 ocv_filter_deps="libopencv"
2493 owdenoise_filter_deps="gpl"
2494 pan_filter_deps="swresample"
2495 phase_filter_deps="gpl"
2496 pp_filter_deps="gpl postproc"
2497 pullup_filter_deps="gpl"
2498 removelogo_filter_deps="avcodec avformat swscale"
2499 resample_filter_deps="avresample"
2500 sab_filter_deps="gpl swscale"
2501 scale_filter_deps="swscale"
2502 smartblur_filter_deps="gpl swscale"
2503 showspectrum_filter_deps="avcodec"
2504 showspectrum_filter_select="rdft"
2505 spp_filter_deps="gpl avcodec"
2506 spp_filter_select="fft"
2507 stereo3d_filter_deps="gpl"
2508 subtitles_filter_deps="avformat avcodec libass"
2509 super2xsai_filter_deps="gpl"
2510 tinterlace_filter_deps="gpl"
2511 vidstabdetect_filter_deps="libvidstab"
2512 vidstabtransform_filter_deps="libvidstab"
2513 pixfmts_super2xsai_test_deps="super2xsai_filter"
2514 tinterlace_merge_test_deps="tinterlace_filter"
2515 tinterlace_pad_test_deps="tinterlace_filter"
2516 zmq_filter_deps="libzmq"
2517
2518 # examples
2519 avio_reading="avformat avcodec avutil"
2520 avcodec_example_deps="avcodec avutil"
2521 demuxing_decoding_example_deps="avcodec avformat avutil"
2522 filter_audio_example_deps="avfilter avutil"
2523 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2524 filtering_video_example_deps="avfilter avcodec avformat avutil"
2525 metadata_example_deps="avformat avutil"
2526 muxing_example_deps="avcodec avformat avutil swscale"
2527 remuxing_example_deps="avcodec avformat avutil"
2528 resampling_audio_example_deps="avutil swresample"
2529 scaling_video_example_deps="avutil swscale"
2530 transcode_aac_example_deps="avcodec avformat swresample"
2531 transcoding_example_deps="avfilter avcodec avformat avutil"
2532
2533 # libraries
2534 avcodec_deps="avutil"
2535 avdevice_deps="avutil avcodec avformat"
2536 avfilter_deps="avutil"
2537 avformat_deps="avutil avcodec"
2538 avresample_deps="avutil"
2539 postproc_deps="avutil gpl"
2540 swscale_deps="avutil"
2541
2542 # programs
2543 ffmpeg_deps="avcodec avfilter avformat swresample"
2544 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2545                null_filter
2546                setpts_filter trim_filter"
2547 ffplay_deps="avcodec avformat swscale swresample sdl"
2548 ffplay_libs='$sdl_libs'
2549 ffplay_select="rdft crop_filter"
2550 ffprobe_deps="avcodec avformat"
2551 ffserver_deps="avformat fork sarestart"
2552 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2553
2554 # documentation
2555 podpages_deps="perl"
2556 manpages_deps="perl pod2man"
2557 htmlpages_deps="perl texi2html"
2558 txtpages_deps="perl makeinfo"
2559 doc_deps_any="manpages htmlpages podpages txtpages"
2560
2561 # default parameters
2562
2563 logfile="config.log"
2564
2565 # installation paths
2566 prefix_default="/usr/local"
2567 bindir_default='${prefix}/bin'
2568 datadir_default='${prefix}/share/ffmpeg'
2569 docdir_default='${prefix}/share/doc/ffmpeg'
2570 incdir_default='${prefix}/include'
2571 libdir_default='${prefix}/lib'
2572 mandir_default='${prefix}/share/man'
2573 shlibdir_default="$libdir_default"
2574
2575 # toolchain
2576 ar_default="ar"
2577 cc_default="gcc"
2578 cxx_default="g++"
2579 host_cc_default="gcc"
2580 cp_f="cp -f"
2581 install="install"
2582 ln_s="ln -s -f"
2583 nm_default="nm -g"
2584 objformat="elf"
2585 pkg_config_default=pkg-config
2586 ranlib_default="ranlib"
2587 strip_default="strip"
2588 yasmexe_default="yasm"
2589 windres_default="windres"
2590
2591 nogas=":"
2592
2593 # OS
2594 target_os_default=$(tolower $(uname -s))
2595 host_os=$target_os_default
2596
2597 # machine
2598 if test "$target_os_default" = aix; then
2599     arch_default=$(uname -p)
2600 else
2601     arch_default=$(uname -m)
2602 fi
2603 cpu="generic"
2604
2605 # configurable options
2606 enable $PROGRAM_LIST
2607 enable $DOCUMENT_LIST
2608 enable $EXAMPLE_LIST
2609 enable $(filter_out avresample $LIBRARY_LIST)
2610 enable stripping
2611
2612 enable asm
2613 enable debug
2614 enable doc
2615 enable optimizations
2616 enable runtime_cpudetect
2617 enable safe_bitstream_reader
2618 enable static
2619 enable swscale_alpha
2620
2621 # Enable hwaccels by default.
2622 enable dxva2 vaapi vda vdpau xvmc
2623 enable xlib
2624
2625 # build settings
2626 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2627 LIBPREF="lib"
2628 LIBSUF=".a"
2629 FULLNAME='$(NAME)$(BUILDSUF)'
2630 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2631 SLIBPREF="lib"
2632 SLIBSUF=".so"
2633 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2634 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2635 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2636 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2637 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2638 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2639
2640 asflags_filter=echo
2641 cflags_filter=echo
2642 ldflags_filter=echo
2643
2644 AS_C='-c'
2645 AS_O='-o $@'
2646 CC_C='-c'
2647 CC_E='-E -o $@'
2648 CC_O='-o $@'
2649 CXX_C='-c'
2650 CXX_O='-o $@'
2651 LD_O='-o $@'
2652 LD_LIB='-l%'
2653 LD_PATH='-L'
2654 HOSTCC_C='-c'
2655 HOSTCC_E='-E -o $@'
2656 HOSTCC_O='-o $@'
2657 HOSTLD_O='-o $@'
2658
2659 host_libs='-lm'
2660 host_cflags_filter=echo
2661 host_ldflags_filter=echo
2662
2663 target_path='$(CURDIR)'
2664
2665 # since the object filename is not given with the -MM flag, the compiler
2666 # is only able to print the basename, and we must add the path ourselves
2667 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2668 DEPFLAGS='-MM'
2669
2670 # find source path
2671 if test -f configure; then
2672     source_path=.
2673 else
2674     source_path=$(cd $(dirname "$0"); pwd)
2675     echo "$source_path" | grep -q '[[:blank:]]' &&
2676         die "Out of tree builds are impossible with whitespace in source path."
2677     test -e "$source_path/config.h" &&
2678         die "Out of tree builds are impossible with config.h in source dir."
2679 fi
2680
2681 for v in "$@"; do
2682     r=${v#*=}
2683     l=${v%"$r"}
2684     r=$(sh_quote "$r")
2685     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2686 done
2687
2688 find_things(){
2689     thing=$1
2690     pattern=$2
2691     file=$source_path/$3
2692     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2693 }
2694
2695 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2696 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2697 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2698 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2699 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2700 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2701 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2702 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2703 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2704 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2705 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2706
2707 ALL_COMPONENTS="
2708     $BSF_LIST
2709     $DECODER_LIST
2710     $DEMUXER_LIST
2711     $ENCODER_LIST
2712     $FILTER_LIST
2713     $HWACCEL_LIST
2714     $INDEV_LIST
2715     $MUXER_LIST
2716     $OUTDEV_LIST
2717     $PARSER_LIST
2718     $PROTOCOL_LIST
2719 "
2720
2721 for n in $COMPONENT_LIST; do
2722     v=$(toupper ${n%s})_LIST
2723     eval enable \$$v
2724     eval ${n}_if_any="\$$v"
2725 done
2726
2727 enable $ARCH_EXT_LIST
2728
2729 die_unknown(){
2730     echo "Unknown option \"$1\"."
2731     echo "See $0 --help for available options."
2732     exit 1
2733 }
2734
2735 print_3_columns() {
2736     cat | tr ' ' '\n' | sort | pr -r -3 -t
2737 }
2738
2739 show_list() {
2740     suffix=_$1
2741     shift
2742     echo $* | sed s/$suffix//g | print_3_columns
2743     exit 0
2744 }
2745
2746 rand_list(){
2747     IFS=', '
2748     set -- $*
2749     unset IFS
2750     for thing; do
2751         comp=${thing%:*}
2752         prob=${thing#$comp}
2753         prob=${prob#:}
2754         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2755         echo "prob ${prob:-0.5}"
2756         printf '%s\n' $comp
2757     done
2758 }
2759
2760 do_random(){
2761     action=$1
2762     shift
2763     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2764     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2765 }
2766
2767 for opt do
2768     optval="${opt#*=}"
2769     case "$opt" in
2770         --extra-ldflags=*)
2771             add_ldflags $optval
2772         ;;
2773         --extra-libs=*)
2774             add_extralibs $optval
2775         ;;
2776         --disable-devices)
2777             disable $INDEV_LIST $OUTDEV_LIST
2778         ;;
2779         --enable-debug=*)
2780             debuglevel="$optval"
2781         ;;
2782         --disable-programs)
2783             disable $PROGRAM_LIST
2784         ;;
2785         --disable-everything)
2786             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2787         ;;
2788         --disable-all)
2789             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2790             disable $LIBRARY_LIST $PROGRAM_LIST doc
2791         ;;
2792         --enable-random|--disable-random)
2793             action=${opt%%-random}
2794             do_random ${action#--} $COMPONENT_LIST
2795         ;;
2796         --enable-random=*|--disable-random=*)
2797             action=${opt%%-random=*}
2798             do_random ${action#--} $optval
2799         ;;
2800         --enable-*=*|--disable-*=*)
2801             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2802             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2803             eval list=\$$(toupper $thing)_LIST
2804             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2805             list=$(filter "$name" $list)
2806             [ "$list" = "" ] && warn "Option $opt did not match anything"
2807             $action $list
2808         ;;
2809         --enable-?*|--disable-?*)
2810             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2811             if is_in $option $COMPONENT_LIST; then
2812                 test $action = disable && action=unset
2813                 eval $action \$$(toupper ${option%s})_LIST
2814             elif is_in $option $CMDLINE_SELECT; then
2815                 $action $option
2816             else
2817                 die_unknown $opt
2818             fi
2819         ;;
2820         --list-*)
2821             NAME="${opt#--list-}"
2822             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2823             NAME=${NAME%s}
2824             eval show_list $NAME \$$(toupper $NAME)_LIST
2825         ;;
2826         --help|-h) show_help
2827         ;;
2828         --fatal-warnings) enable fatal_warnings
2829         ;;
2830         *)
2831             optname="${opt%%=*}"
2832             optname="${optname#--}"
2833             optname=$(echo "$optname" | sed 's/-/_/g')
2834             if is_in $optname $CMDLINE_SET; then
2835                 eval $optname='$optval'
2836             elif is_in $optname $CMDLINE_APPEND; then
2837                 append $optname "$optval"
2838             else
2839                 die_unknown $opt
2840             fi
2841         ;;
2842     esac
2843 done
2844
2845 disabled logging && logfile=/dev/null
2846
2847 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2848 set >> $logfile
2849
2850 test -n "$cross_prefix" && enable cross_compile
2851
2852 if enabled cross_compile; then
2853     test -n "$arch" && test -n "$target_os" ||
2854         die "Must specify target arch and OS when cross-compiling"
2855 fi
2856
2857 ar_default="${cross_prefix}${ar_default}"
2858 cc_default="${cross_prefix}${cc_default}"
2859 cxx_default="${cross_prefix}${cxx_default}"
2860 nm_default="${cross_prefix}${nm_default}"
2861 pkg_config_default="${cross_prefix}${pkg_config_default}"
2862 ranlib_default="${cross_prefix}${ranlib_default}"
2863 strip_default="${cross_prefix}${strip_default}"
2864 windres_default="${cross_prefix}${windres_default}"
2865
2866 sysinclude_default="${sysroot}/usr/include"
2867
2868 test -n "$valgrind" && toolchain="valgrind-memcheck"
2869
2870 case "$toolchain" in
2871     clang-asan)
2872         cc_default="clang"
2873         add_cflags  -fsanitize=address
2874         add_ldflags -fsanitize=address
2875     ;;
2876     clang-tsan)
2877         cc_default="clang"
2878         add_cflags  -fsanitize=thread -pie
2879         add_ldflags -fsanitize=thread -pie
2880     ;;
2881     clang-usan)
2882         cc_default="clang"
2883         add_cflags  -fsanitize=undefined
2884         add_ldflags -fsanitize=undefined
2885     ;;
2886     gcc-asan)
2887         cc_default="gcc"
2888         add_cflags  -fsanitize=address
2889         add_ldflags -fsanitize=address
2890     ;;
2891     gcc-tsan)
2892         cc_default="gcc"
2893         add_cflags  -fsanitize=thread -pie -fPIC
2894         add_ldflags -fsanitize=thread -pie -fPIC
2895     ;;
2896     gcc-usan)
2897         cc_default="gcc"
2898         add_cflags  -fsanitize=undefined
2899         add_ldflags -fsanitize=undefined
2900     ;;
2901     valgrind-massif)
2902         target_exec_default=${valgrind:-"valgrind"}
2903         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"
2904     ;;
2905     valgrind-memcheck)
2906         target_exec_default=${valgrind:-"valgrind"}
2907         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2908     ;;
2909     msvc)
2910         # Check whether the current MSVC version needs the C99 converter.
2911         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2912         # support enough of C99 to build ffmpeg. Default to the new
2913         # behaviour if the regexp was unable to match anything, since this
2914         # successfully parses the version number of existing supported
2915         # versions that require the converter (MSVC 2010 and 2012).
2916         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2917         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2918             cc_default="cl"
2919         else
2920             cc_default="c99wrap cl"
2921         fi
2922         ld_default="link"
2923         nm_default="dumpbin -symbols"
2924         ar_default="lib"
2925         target_os_default="win32"
2926         # Use a relative path for TMPDIR. This makes sure all the
2927         # ffconf temp files are written with a relative path, avoiding
2928         # issues with msys/win32 path conversion for MSVC parameters
2929         # such as -Fo<file> or -out:<file>.
2930         TMPDIR=.
2931     ;;
2932     icl)
2933         cc_default="icl"
2934         ld_default="xilink"
2935         nm_default="dumpbin -symbols"
2936         ar_default="xilib"
2937         target_os_default="win32"
2938         TMPDIR=.
2939     ;;
2940     gcov)
2941         add_cflags  -fprofile-arcs -ftest-coverage
2942         add_ldflags -fprofile-arcs -ftest-coverage
2943     ;;
2944     hardened)
2945         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2946         add_ldflags -Wl,-z,relro -Wl,-z,now
2947     ;;
2948     ?*)
2949         die "Unknown toolchain $toolchain"
2950     ;;
2951 esac
2952
2953 set_default arch cc cxx pkg_config ranlib strip sysinclude target_exec target_os yasmexe
2954 enabled cross_compile || host_cc_default=$cc
2955 set_default host_cc
2956
2957 if ! $pkg_config --version >/dev/null 2>&1; then
2958     warn "$pkg_config not found, library detection may fail."
2959     pkg_config=false
2960 fi
2961
2962 exesuf() {
2963     case $1 in
2964         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2965     esac
2966 }
2967
2968 EXESUF=$(exesuf $target_os)
2969 HOSTEXESUF=$(exesuf $host_os)
2970
2971 # set temporary file name
2972 : ${TMPDIR:=$TEMPDIR}
2973 : ${TMPDIR:=$TMP}
2974 : ${TMPDIR:=/tmp}
2975
2976 if [ -n "$tempprefix" ] ; then
2977     mktemp(){
2978         echo $tempprefix.${HOSTNAME}.${UID}
2979     }
2980 elif ! check_cmd mktemp -u XXXXXX; then
2981     # simple replacement for missing mktemp
2982     # NOT SAFE FOR GENERAL USE
2983     mktemp(){
2984         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2985     }
2986 fi
2987
2988 tmpfile(){
2989     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2990         (set -C; exec > $tmp) 2>/dev/null ||
2991         die "Unable to create temporary file in $TMPDIR."
2992     append TMPFILES $tmp
2993     eval $1=$tmp
2994 }
2995
2996 trap 'rm -f -- $TMPFILES' EXIT
2997
2998 tmpfile TMPASM .asm
2999 tmpfile TMPC   .c
3000 tmpfile TMPCPP .cpp
3001 tmpfile TMPE   $EXESUF
3002 tmpfile TMPH   .h
3003 tmpfile TMPM   .m
3004 tmpfile TMPO   .o
3005 tmpfile TMPS   .S
3006 tmpfile TMPSH  .sh
3007 tmpfile TMPV   .ver
3008
3009 unset -f mktemp
3010
3011 chmod +x $TMPE
3012
3013 # make sure we can execute files in $TMPDIR
3014 cat > $TMPSH 2>> $logfile <<EOF
3015 #! /bin/sh
3016 EOF
3017 chmod +x $TMPSH >> $logfile 2>&1
3018 if ! $TMPSH >> $logfile 2>&1; then
3019     cat <<EOF
3020 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3021 variable to another directory and make sure that it is not mounted noexec.
3022 EOF
3023     die "Sanity test failed."
3024 fi
3025
3026 ccc_flags(){
3027     for flag; do
3028         case $flag in
3029             -std=c99)           echo -c99                       ;;
3030             -mcpu=*)            echo -arch ${flag#*=}           ;;
3031             -mieee)             echo -ieee                      ;;
3032             -O*|-fast)          echo $flag                      ;;
3033             -fno-math-errno)    echo -assume nomath_errno       ;;
3034             -g)                 echo -g3                        ;;
3035             -Wall)              echo -msg_enable level2         ;;
3036             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3037             -Wl,*)              echo $flag                      ;;
3038             -f*|-W*)                                            ;;
3039             *)                  echo $flag                      ;;
3040         esac
3041    done
3042 }
3043
3044 cparser_flags(){
3045     for flag; do
3046         case $flag in
3047             -Wno-switch)             echo -Wno-switch-enum ;;
3048             -Wno-format-zero-length) ;;
3049             -Wdisabled-optimization) ;;
3050             -Wno-pointer-sign)       echo -Wno-other ;;
3051             *)                       echo $flag ;;
3052         esac
3053     done
3054 }
3055
3056 msvc_common_flags(){
3057     for flag; do
3058         case $flag in
3059             # In addition to specifying certain flags under the compiler
3060             # specific filters, they must be specified here as well or else the
3061             # generic catch all at the bottom will print the original flag.
3062             -Wall)                ;;
3063             -std=c99)             ;;
3064             # Common flags
3065             -fomit-frame-pointer) ;;
3066             -g)                   echo -Z7 ;;
3067             -fno-math-errno)      ;;
3068             -fno-common)          ;;
3069             -fno-signed-zeros)    ;;
3070             -fPIC)                ;;
3071             -mthumb)              ;;
3072             -march=*)             ;;
3073             -lz)                  echo zlib.lib ;;
3074             -lavifil32)           echo vfw32.lib ;;
3075             -lavicap32)           echo vfw32.lib user32.lib ;;
3076             -l*)                  echo ${flag#-l}.lib ;;
3077             *)                    echo $flag ;;
3078         esac
3079     done
3080 }
3081
3082 msvc_flags(){
3083     msvc_common_flags "$@"
3084     for flag; do
3085         case $flag in
3086             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3087                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3088                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3089                                        -wd4554 \
3090                                        -wd4273 ;;
3091         esac
3092     done
3093 }
3094
3095 icl_flags(){
3096     msvc_common_flags "$@"
3097     for flag; do
3098         case $flag in
3099             # Despite what Intel's documentation says -Wall, which is supported
3100             # on Windows, does enable remarks so disable them here.
3101             -Wall)                echo $flag -Qdiag-disable:remark ;;
3102             -std=c99)             echo -Qstd=c99 ;;
3103         esac
3104     done
3105 }
3106
3107 pgi_flags(){
3108     for flag; do
3109         case $flag in
3110             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3111             -fomit-frame-pointer) echo -Mnoframe ;;
3112             -g)                   echo -gopt ;;
3113             *)                    echo $flag ;;
3114         esac
3115     done
3116 }
3117
3118 suncc_flags(){
3119     for flag; do
3120         case $flag in
3121             -march=*|-mcpu=*)
3122                 case "${flag#*=}" in
3123                     native)                   echo -xtarget=native       ;;
3124                     v9|niagara)               echo -xarch=sparc          ;;
3125                     ultrasparc)               echo -xarch=sparcvis       ;;
3126                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3127                     i586|pentium)             echo -xchip=pentium        ;;
3128                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3129                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3130                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3131                     pentium4*)          echo -xtarget=pentium4           ;;
3132                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3133                     *-sse3)             echo -xarch=sse3                 ;;
3134                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3135                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3136                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3137                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3138                     bdver*)                    echo -xarch=avx           ;;
3139                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3140                     k8|opteron|athlon64|athlon-fx)
3141                                                echo -xarch=sse2a         ;;
3142                     athlon*)                   echo -xarch=pentium_proa  ;;
3143                 esac
3144                 ;;
3145             -std=c99)             echo -xc99              ;;
3146             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3147             -fPIC)                echo -KPIC -xcode=pic32 ;;
3148             -W*,*)                echo $flag              ;;
3149             -f*-*|-W*|-mimpure-text)                      ;;
3150             -shared)              echo -G                 ;;
3151             *)                    echo $flag              ;;
3152         esac
3153     done
3154 }
3155
3156 tms470_flags(){
3157     for flag; do
3158         case $flag in
3159             -march=*|-mcpu=*)
3160                 case "${flag#*=}" in
3161                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3162                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3163                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3164                     armv6*|arm11*)          echo -mv=6   ;;
3165                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3166                                             echo -mv=5e  ;;
3167                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3168                 esac
3169                 ;;
3170             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3171             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3172             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3173             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3174             -msoft-float)   echo --float_support=vfplib       ;;
3175             -O[0-3]|-mf=*)  echo $flag                        ;;
3176             -g)             echo -g -mn                       ;;
3177             -pds=*)         echo $flag                        ;;
3178             -D*|-I*)        echo $flag                        ;;
3179             --gcc|--abi=*)  echo $flag                        ;;
3180             -me)            echo $flag                        ;;
3181         esac
3182     done
3183 }
3184
3185 probe_cc(){
3186     pfx=$1
3187     _cc=$2
3188
3189     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3190     unset _ld_o _ldflags _ld_lib _ld_path
3191     unset _depflags _DEPCMD _DEPFLAGS
3192     _flags_filter=echo
3193
3194     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3195         true # no-op to avoid reading stdin in following checks
3196     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3197         _type=llvm_gcc
3198         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3199         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3200         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3201         _cflags_speed='-O3'
3202         _cflags_size='-Os'
3203     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3204         _type=gcc
3205         gcc_version=$($_cc --version | head -n1)
3206         gcc_basever=$($_cc -dumpversion)
3207         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3208         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3209         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3210         if ! $_cc -dumpversion | grep -q '^2\.'; then
3211             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3212         fi
3213         _cflags_speed='-O3'
3214         _cflags_size='-Os'
3215     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3216         _type=icc
3217         _ident=$($_cc --version | head -n1)
3218         _depflags='-MMD'
3219         _cflags_speed='-O3'
3220         _cflags_size='-Os'
3221         _cflags_noopt='-O1'
3222     elif $_cc -v 2>&1 | grep -q xlc; then
3223         _type=xlc
3224         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3225         _cflags_speed='-O5'
3226         _cflags_size='-O5 -qcompact'
3227     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3228         _type=ccc
3229         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3230         _DEPFLAGS='-M'
3231         _cflags_speed='-fast'
3232         _cflags_size='-O1'
3233         _flags_filter=ccc_flags
3234     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3235         test -d "$sysroot" || die "No valid sysroot specified."
3236         _type=armcc
3237         _ident=$($_cc --vsn | head -n1 | sed 's/.*: //')
3238         armcc_conf="$PWD/armcc.conf"
3239         $_cc --arm_linux_configure                 \
3240              --arm_linux_config_file="$armcc_conf" \
3241              --configure_sysroot="$sysroot"        \
3242              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3243              die "Error creating armcc configuration file."
3244         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3245         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3246         as_default="${cross_prefix}gcc"
3247         _depflags='-MMD'
3248         _cflags_speed='-O3'
3249         _cflags_size='-Os'
3250     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3251         _type=tms470
3252         _ident=$($_cc -version | head -n1 | tr -s ' ')
3253         _flags='--gcc --abi=eabi -me'
3254         _cc_e='-ppl -fe=$@'
3255         _cc_o='-fe=$@'
3256         _depflags='-ppa -ppd=$(@:.o=.d)'
3257         _cflags_speed='-O3 -mf=5'
3258         _cflags_size='-O3 -mf=2'
3259         _flags_filter=tms470_flags
3260     elif $_cc -v 2>&1 | grep -q clang; then
3261         _type=clang
3262         _ident=$($_cc --version | head -n1)
3263         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3264         _cflags_speed='-O3'
3265         _cflags_size='-Os'
3266     elif $_cc -V 2>&1 | grep -q Sun; then
3267         _type=suncc
3268         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3269         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3270         _DEPFLAGS='-xM1 -xc99'
3271         _ldflags='-std=c99'
3272         _cflags_speed='-O5'
3273         _cflags_size='-O5 -xspace'
3274         _flags_filter=suncc_flags
3275     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3276         _type=pathscale
3277         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3278         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3279         _cflags_speed='-O2'
3280         _cflags_size='-Os'
3281         _flags_filter='filter_out -Wdisabled-optimization'
3282     elif $_cc -v 2>&1 | grep -q Open64; then
3283         _type=open64
3284         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3285         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3286         _cflags_speed='-O2'
3287         _cflags_size='-Os'
3288         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3289     elif $_cc -V 2>&1 | grep -q Portland; then
3290         _type=pgi
3291         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3292         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3293         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3294         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3295         _cflags_noopt="-O"
3296         _flags_filter=pgi_flags
3297     elif $_cc 2>&1 | grep -q Microsoft; then
3298         _type=msvc
3299         _ident=$($cc 2>&1 | head -n1)
3300         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3301         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3302         _cflags_speed="-O2"
3303         _cflags_size="-O1"
3304         if $_cc 2>&1 | grep -q Linker; then
3305             _ld_o='-out:$@'
3306         else
3307             _ld_o='-Fe$@'
3308         fi
3309         _cc_o='-Fo$@'
3310         _cc_e='-P -Fi$@'
3311         _flags_filter=msvc_flags
3312         _ld_lib='lib%.a'
3313         _ld_path='-libpath:'
3314         _flags='-nologo'
3315         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3316         if [ $pfx = hostcc ]; then
3317             append _cflags -Dsnprintf=_snprintf
3318         fi
3319         disable stripping
3320     elif $_cc 2>&1 | grep -q Intel; then
3321         _type=icl
3322         _ident=$($cc 2>&1 | head -n1)
3323         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3324         # Not only is O3 broken on 13.x+ but it is slower on all previous
3325         # versions (tested) as well.
3326         _cflags_speed="-O2"
3327         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3328         if $_cc 2>&1 | grep -q Linker; then
3329             _ld_o='-out:$@'
3330         else
3331             _ld_o='-Fe$@'
3332         fi
3333         _cc_o='-Fo$@'
3334         _cc_e='-P'
3335         _flags_filter=icl_flags
3336         _ld_lib='lib%.a'
3337         _ld_path='-libpath:'
3338         # -Qdiag-error to make icl error when seeing certain unknown arguments
3339         _flags='-nologo -Qdiag-error:4044,10157'
3340         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3341         # with MSVC which enables it by default.
3342         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3343         if [ $pfx = hostcc ]; then
3344             append _cflags -Dsnprintf=_snprintf
3345         fi
3346     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3347         _type=cparser
3348         _ident=$($_cc --version | head -n1)
3349         _depflags='-MMD'
3350         _cflags_speed='-O4'
3351         _cflags_size='-O2'
3352         _flags_filter=cparser_flags
3353     fi
3354
3355     eval ${pfx}_type=\$_type
3356     eval ${pfx}_ident=\$_ident
3357 }
3358
3359 set_ccvars(){
3360     eval ${1}_C=\${_cc_c-\${${1}_C}}
3361     eval ${1}_E=\${_cc_e-\${${1}_E}}
3362     eval ${1}_O=\${_cc_o-\${${1}_O}}
3363
3364     if [ -n "$_depflags" ]; then
3365         eval ${1}_DEPFLAGS=\$_depflags
3366     else
3367         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3368         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3369         eval DEP${1}FLAGS=\$_flags
3370     fi
3371 }
3372
3373 probe_cc cc "$cc"
3374 cflags_filter=$_flags_filter
3375 cflags_speed=$_cflags_speed
3376 cflags_size=$_cflags_size
3377 cflags_noopt=$_cflags_noopt
3378 add_cflags $_flags $_cflags
3379 cc_ldflags=$_ldflags
3380 set_ccvars CC
3381
3382 probe_cc hostcc "$host_cc"
3383 host_cflags_filter=$_flags_filter
3384 add_host_cflags  $_flags $_cflags
3385 set_ccvars HOSTCC
3386
3387 test -n "$cc_type" && enable $cc_type ||
3388     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3389
3390 : ${as_default:=$cc}
3391 : ${dep_cc_default:=$cc}
3392 : ${ld_default:=$cc}
3393 : ${host_ld_default:=$host_cc}
3394 set_default ar as dep_cc ld host_ld windres
3395
3396 probe_cc as "$as"
3397 asflags_filter=$_flags_filter
3398 add_asflags $_flags $_cflags
3399 set_ccvars AS
3400
3401 probe_cc ld "$ld"
3402 ldflags_filter=$_flags_filter
3403 add_ldflags $_flags $_ldflags
3404 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3405 LD_O=${_ld_o-$LD_O}
3406 LD_LIB=${_ld_lib-$LD_LIB}
3407 LD_PATH=${_ld_path-$LD_PATH}
3408
3409 probe_cc hostld "$host_ld"
3410 host_ldflags_filter=$_flags_filter
3411 add_host_ldflags $_flags $_ldflags
3412 HOSTLD_O=${_ld_o-$HOSTLD_O}
3413
3414 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3415     probe_cc depcc "$dep_cc"
3416     CCDEP=${_DEPCMD:-$DEPCMD}
3417     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3418     DEPCCFLAGS=$_flags
3419 fi
3420
3421 if $ar 2>&1 | grep -q Microsoft; then
3422     arflags="-nologo"
3423     ar_o='-out:$@'
3424 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3425     arflags="rq"
3426     ar_o='$@'
3427 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3428     arflags='-Xany -r -c'
3429     ar_o='$@'
3430 else
3431     arflags="rc"
3432     ar_o='$@'
3433 fi
3434
3435 add_cflags $extra_cflags
3436 add_cxxflags $extra_cxxflags
3437 add_asflags $extra_cflags
3438
3439 if test -n "$sysroot"; then
3440     case "$cc_type" in
3441         gcc|llvm_gcc|clang)
3442             add_cppflags --sysroot="$sysroot"
3443             add_ldflags --sysroot="$sysroot"
3444 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3445             add_cppflags -isysroot "$sysroot"
3446             add_ldflags -isysroot "$sysroot"
3447         ;;
3448         tms470)
3449             add_cppflags -I"$sysinclude"
3450             add_ldflags  --sysroot="$sysroot"
3451         ;;
3452     esac
3453 fi
3454
3455 if test "$cpu" = host; then
3456     enabled cross_compile &&
3457         die "--cpu=host makes no sense when cross-compiling."
3458
3459     case "$cc_type" in
3460         gcc|llvm_gcc)
3461             check_native(){
3462                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3463                 sed -n "/cc1.*$1=/{
3464                             s/.*$1=\\([^ ]*\\).*/\\1/
3465                             p
3466                             q
3467                         }" $TMPE
3468             }
3469             cpu=$(check_native -march || check_native -mcpu)
3470         ;;
3471     esac
3472
3473     test "${cpu:-host}" = host &&
3474         die "--cpu=host not supported with compiler $cc"
3475 fi
3476
3477 # Deal with common $arch aliases
3478 case "$arch" in
3479     aarch64|arm64)
3480         arch="aarch64"
3481     ;;
3482     arm*|iPad*|iPhone*)
3483         arch="arm"
3484     ;;
3485     mips*|IP*)
3486         arch="mips"
3487     ;;
3488     parisc*|hppa*)
3489         arch="parisc"
3490     ;;
3491     "Power Macintosh"|ppc*|powerpc*)
3492         arch="ppc"
3493     ;;
3494     s390|s390x)
3495         arch="s390"
3496     ;;
3497     sh4|sh)
3498         arch="sh4"
3499     ;;
3500     sun4u|sparc*)
3501         arch="sparc"
3502     ;;
3503     tilegx|tile-gx)
3504         arch="tilegx"
3505     ;;
3506     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3507         arch="x86"
3508     ;;
3509 esac
3510
3511 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3512 enable $arch
3513
3514 # Add processor-specific flags
3515 if enabled aarch64; then
3516
3517     case $cpu in
3518         armv*)
3519             cpuflags="-march=$cpu"
3520         ;;
3521         *)
3522             cpuflags="-mcpu=$cpu"
3523         ;;
3524     esac
3525
3526 elif enabled alpha; then
3527
3528     cpuflags="-mcpu=$cpu"
3529
3530 elif enabled arm; then
3531
3532     check_arm_arch() {
3533         check_cpp_condition stddef.h \
3534             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3535             $cpuflags
3536     }
3537
3538     probe_arm_arch() {
3539         if   check_arm_arch 4;        then echo armv4;
3540         elif check_arm_arch 4T;       then echo armv4t;
3541         elif check_arm_arch 5;        then echo armv5;
3542         elif check_arm_arch 5E;       then echo armv5e;
3543         elif check_arm_arch 5T;       then echo armv5t;
3544         elif check_arm_arch 5TE;      then echo armv5te;
3545         elif check_arm_arch 5TEJ;     then echo armv5te;
3546         elif check_arm_arch 6;        then echo armv6;
3547         elif check_arm_arch 6J;       then echo armv6j;
3548         elif check_arm_arch 6K;       then echo armv6k;
3549         elif check_arm_arch 6Z;       then echo armv6z;
3550         elif check_arm_arch 6ZK;      then echo armv6zk;
3551         elif check_arm_arch 6T2;      then echo armv6t2;
3552         elif check_arm_arch 7;        then echo armv7;
3553         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3554         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3555         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3556         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3557         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3558         fi
3559     }
3560
3561     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3562
3563     case $cpu in
3564         armv*)
3565             cpuflags="-march=$cpu"
3566             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3567         ;;
3568         *)
3569             cpuflags="-mcpu=$cpu"
3570             case $cpu in
3571                 cortex-a*)                               subarch=armv7a  ;;
3572                 cortex-r*)                               subarch=armv7r  ;;
3573                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3574                 arm11*)                                  subarch=armv6   ;;
3575                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3576                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3577                 *)                             subarch=$(probe_arm_arch) ;;
3578             esac
3579         ;;
3580     esac
3581
3582     case "$subarch" in
3583         armv5t*)    enable fast_clz                ;;
3584         armv[6-8]*) enable fast_clz fast_unaligned ;;
3585     esac
3586
3587 elif enabled avr32; then
3588
3589     case $cpu in
3590         ap7[02]0[0-2])
3591             subarch="avr32_ap"
3592             cpuflags="-mpart=$cpu"
3593         ;;
3594         ap)
3595             subarch="avr32_ap"
3596             cpuflags="-march=$cpu"
3597         ;;
3598         uc3[ab]*)
3599             subarch="avr32_uc"
3600             cpuflags="-mcpu=$cpu"
3601         ;;
3602         uc)
3603             subarch="avr32_uc"
3604             cpuflags="-march=$cpu"
3605         ;;
3606     esac
3607
3608 elif enabled bfin; then
3609
3610     cpuflags="-mcpu=$cpu"
3611
3612 elif enabled mips; then
3613
3614     cpuflags="-march=$cpu"
3615
3616     case $cpu in
3617         24kc)
3618             disable mipsfpu
3619             disable mipsdspr1
3620             disable mipsdspr2
3621         ;;
3622         24kf*)
3623             disable mipsdspr1
3624             disable mipsdspr2
3625         ;;
3626         24kec|34kc|1004kc)
3627             disable mipsfpu
3628             disable mipsdspr2
3629         ;;
3630         24kef*|34kf*|1004kf*)
3631             disable mipsdspr2
3632         ;;
3633         74kc)
3634             disable mipsfpu
3635         ;;
3636     esac
3637
3638 elif enabled ppc; then
3639
3640     disable ldbrx
3641
3642     case $(tolower $cpu) in
3643         601|ppc601|powerpc601)
3644             cpuflags="-mcpu=601"
3645             disable altivec
3646         ;;
3647         603*|ppc603*|powerpc603*)
3648             cpuflags="-mcpu=603"
3649             disable altivec
3650         ;;
3651         604*|ppc604*|powerpc604*)
3652             cpuflags="-mcpu=604"
3653             disable altivec
3654         ;;
3655         g3|75*|ppc75*|powerpc75*)
3656             cpuflags="-mcpu=750"
3657             disable altivec
3658         ;;
3659         g4|745*|ppc745*|powerpc745*)
3660             cpuflags="-mcpu=7450"
3661         ;;
3662         74*|ppc74*|powerpc74*)
3663             cpuflags="-mcpu=7400"
3664         ;;
3665         g5|970|ppc970|powerpc970)
3666             cpuflags="-mcpu=970"
3667         ;;
3668         power[3-7]*)
3669             cpuflags="-mcpu=$cpu"
3670         ;;
3671         cell)
3672             cpuflags="-mcpu=cell"
3673             enable ldbrx
3674         ;;
3675         e500mc)
3676             cpuflags="-mcpu=e500mc"
3677             disable altivec
3678         ;;
3679         e500v2)
3680             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3681             disable altivec
3682             disable dcbzl
3683         ;;
3684         e500)
3685             cpuflags="-mcpu=8540 -mhard-float"
3686             disable altivec
3687             disable dcbzl
3688         ;;
3689     esac
3690
3691 elif enabled sparc; then
3692
3693     case $cpu in
3694         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3695             cpuflags="-mcpu=$cpu"
3696         ;;
3697         ultrasparc*|niagara[234])
3698             cpuflags="-mcpu=$cpu"
3699         ;;
3700     esac
3701
3702 elif enabled x86; then
3703
3704     case $cpu in
3705         i[345]86|pentium)
3706             cpuflags="-march=$cpu"
3707             disable mmx
3708         ;;
3709         # targets that do NOT support nopl and conditional mov (cmov)
3710         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3711             cpuflags="-march=$cpu"
3712             disable i686
3713         ;;
3714         # targets that do support nopl and conditional mov (cmov)
3715         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3716             cpuflags="-march=$cpu"
3717             enable i686
3718             enable fast_cmov
3719         ;;
3720         # targets that do support conditional mov but on which it's slow
3721         pentium4|pentium4m|prescott|nocona)
3722             cpuflags="-march=$cpu"
3723             enable i686
3724             disable fast_cmov
3725         ;;
3726     esac
3727
3728 fi
3729
3730 if [ "$cpu" != generic ]; then
3731     add_cflags  $cpuflags
3732     add_asflags $cpuflags
3733 fi
3734
3735 # compiler sanity check
3736 check_exec <<EOF
3737 int main(void){ return 0; }
3738 EOF
3739 if test "$?" != 0; then
3740     echo "$cc is unable to create an executable file."
3741     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3742         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3743         echo "Only do this if you know what cross compiling means."
3744     fi
3745     die "C compiler test failed."
3746 fi
3747
3748 add_cppflags -D_ISOC99_SOURCE
3749 add_cxxflags -D__STDC_CONSTANT_MACROS
3750 check_cflags -std=c99
3751 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3752 #include <stdlib.h>
3753 EOF
3754 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3755 #include <stdlib.h>
3756 EOF
3757
3758 add_host_cppflags -D_ISOC99_SOURCE
3759 check_host_cflags -std=c99
3760 check_host_cflags -Wall
3761 check_host_cflags -O3
3762
3763 check_64bit(){
3764     arch32=$1
3765     arch64=$2
3766     expr=$3
3767     check_code cc "" "int test[2*($expr) - 1]" &&
3768         subarch=$arch64 || subarch=$arch32
3769 }
3770
3771 case "$arch" in
3772     aarch64|alpha|ia64)
3773         spic=$shared
3774     ;;
3775     mips)
3776         check_64bit mips mips64 '_MIPS_SIM > 1'
3777         spic=$shared
3778     ;;
3779     parisc)
3780         check_64bit parisc parisc64 'sizeof(void *) > 4'
3781         spic=$shared
3782     ;;
3783     ppc)
3784         check_64bit ppc ppc64 'sizeof(void *) > 4'
3785         spic=$shared
3786     ;;
3787     s390)
3788         check_64bit s390 s390x 'sizeof(void *) > 4'
3789         spic=$shared
3790     ;;
3791     sparc)
3792         check_64bit sparc sparc64 'sizeof(void *) > 4'
3793         spic=$shared
3794     ;;
3795     x86)
3796         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3797         if test "$subarch" = "x86_64"; then
3798             spic=$shared
3799         fi
3800     ;;
3801     ppc)
3802         check_cc <<EOF && subarch="ppc64"
3803         int test[(int)sizeof(char*) - 7];
3804 EOF
3805     ;;
3806 esac
3807
3808 enable $subarch
3809 enabled spic && enable_weak pic
3810
3811 # OS specific
3812 case $target_os in
3813     aix)
3814         SHFLAGS=-shared
3815         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3816         enabled shared && add_ldflags -Wl,-brtl
3817         ;;
3818     haiku)
3819         prefix_default="/boot/common"
3820         network_extralibs="-lnetwork"
3821         host_libs=
3822         ;;
3823     sunos)
3824         SHFLAGS='-shared -Wl,-h,$$(@F)'
3825         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3826         network_extralibs="-lsocket -lnsl"
3827         # When using suncc to build, the Solaris linker will mark
3828         # an executable with each instruction set encountered by
3829         # the Solaris assembler.  As our libraries contain their own
3830         # guards for processor-specific code, instead suppress
3831         # generation of the HWCAPS ELF section on Solaris x86 only.
3832         enabled_all suncc x86 &&
3833             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3834             add_ldflags -Wl,-M,mapfile
3835         nm_default='nm -P -g'
3836         ;;
3837     netbsd)
3838         disable symver
3839         oss_indev_extralibs="-lossaudio"
3840         oss_outdev_extralibs="-lossaudio"
3841         enabled gcc || check_ldflags -Wl,-zmuldefs
3842         ;;
3843     openbsd|bitrig)
3844         disable symver
3845         SHFLAGS='-shared'
3846         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3847         SLIB_INSTALL_LINKS=
3848         oss_indev_extralibs="-lossaudio"
3849         oss_outdev_extralibs="-lossaudio"
3850         ;;
3851     dragonfly)
3852         disable symver
3853         ;;
3854     freebsd)
3855         ;;
3856     bsd/os)
3857         add_extralibs -lpoll -lgnugetopt
3858         strip="strip -d"
3859         ;;
3860     darwin)
3861         test "${as#*gas-preprocessor.pl}" != "$as" || gas="${gas:=gas-preprocessor.pl} ${as:=$cc}"
3862         enabled ppc && add_asflags -force_cpusubtype_ALL
3863         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3864         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3865         strip="${strip} -x"
3866         add_ldflags -Wl,-dynamic,-search_paths_first
3867         SLIBSUF=".dylib"
3868         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3869         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3870         objformat="macho"
3871         enabled x86_64 && objformat="macho64"
3872         enabled_any pic shared ||
3873             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3874         ;;
3875     mingw32*)
3876         if test $target_os = "mingw32ce"; then
3877             disable network
3878         else
3879             target_os=mingw32
3880         fi
3881         LIBTARGET=i386
3882         if enabled x86_64; then
3883             LIBTARGET="i386:x86-64"
3884         elif enabled arm; then
3885             LIBTARGET=arm-wince
3886         fi
3887         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3888         check_ldflags -Wl,--nxcompat
3889         check_ldflags -Wl,--dynamicbase
3890         shlibdir_default="$bindir_default"
3891         SLIBPREF=""
3892         SLIBSUF=".dll"
3893         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3894         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3895         dlltool="${cross_prefix}dlltool"
3896         if check_cmd lib.exe -list; then
3897             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3898             if enabled x86_64; then
3899                 LIBTARGET=x64
3900             fi
3901         elif check_cmd $dlltool --version; then
3902             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3903         fi
3904         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3905         SLIB_INSTALL_LINKS=
3906         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3907         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3908         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3909         objformat="win32"
3910         ranlib=:
3911         enable dos_paths
3912         ;;
3913     win32|win64)
3914         disable symver
3915         if enabled shared; then
3916             # Link to the import library instead of the normal static library
3917             # for shared libs.
3918             LD_LIB='%.lib'
3919             # Cannot build both shared and static libs with MSVC or icl.
3920             disable static
3921         fi
3922         shlibdir_default="$bindir_default"
3923         SLIBPREF=""
3924         SLIBSUF=".dll"
3925         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3926         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3927         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3928         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3929         SLIB_INSTALL_LINKS=
3930         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3931         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3932         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3933         objformat="win32"
3934         ranlib=:
3935         enable dos_paths
3936         ;;
3937     cygwin*)
3938         target_os=cygwin
3939         shlibdir_default="$bindir_default"
3940         SLIBPREF="cyg"
3941         SLIBSUF=".dll"
3942         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3943         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3944         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3945         SLIB_INSTALL_LINKS=
3946         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3947         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3948         objformat="win32"
3949         enable dos_paths
3950         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3951         ;;
3952     *-dos|freedos|opendos)
3953         network_extralibs="-lsocket"
3954         objformat="coff"
3955         enable dos_paths
3956         add_cppflags -U__STRICT_ANSI__
3957         ;;
3958     linux)
3959         enable dv1394
3960         ;;
3961     irix*)
3962         target_os=irix
3963         ranlib="echo ignoring ranlib"
3964         ;;
3965     os/2*)
3966         strip="lxlite -CS"
3967         ln_s="cp -f"
3968         objformat="aout"
3969         add_cppflags -D_GNU_SOURCE
3970         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3971         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3972         LIBSUF="_s.a"
3973         SLIBPREF=""
3974         SLIBSUF=".dll"
3975         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3976         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3977         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3978             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3979             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3980             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3981             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3982             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3983         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3984             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3985         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3986         enable dos_paths
3987         enable_weak os2threads
3988         ;;
3989     gnu/kfreebsd)
3990         add_cppflags -D_BSD_SOURCE
3991         ;;
3992     gnu)
3993         ;;
3994     qnx)
3995         add_cppflags -D_QNX_SOURCE
3996         network_extralibs="-lsocket"
3997         ;;
3998     symbian)
3999         SLIBSUF=".dll"
4000         enable dos_paths
4001         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4002         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4003         add_ldflags -Wl,--target1-abs,--no-undefined \
4004                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4005                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4006         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4007                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4008                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4009         ;;
4010     osf1)
4011         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4012         ;;
4013     minix)
4014         ;;
4015     plan9)
4016         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4017                      -D_REENTRANT_SOURCE        \
4018                      -D_RESEARCH_SOURCE         \
4019                      -DFD_SETSIZE=96            \
4020                      -DHAVE_SOCK_OPTS
4021         add_compat strtod.o strtod=avpriv_strtod
4022         network_extralibs='-lbsd'
4023         exeobjs=compat/plan9/main.o
4024         disable ffserver
4025         cp_f='cp'
4026         ;;
4027     none)
4028         ;;
4029     *)
4030         die "Unknown OS '$target_os'."
4031         ;;
4032 esac
4033
4034 # determine libc flavour
4035
4036 probe_libc(){
4037     pfx=$1
4038     pfx_no_=${pfx%_}
4039     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4040     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4041         eval ${pfx}libc_type=uclibc
4042         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4043     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4044         eval ${pfx}libc_type=glibc
4045         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4046     # MinGW headers can be installed on Cygwin, so check for newlib first.
4047     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4048         eval ${pfx}libc_type=newlib
4049         add_${pfx}cppflags -U__STRICT_ANSI__
4050     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4051     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4052         eval ${pfx}libc_type=mingw64
4053         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4054             add_compat msvcrt/snprintf.o
4055             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4056         fi
4057         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4058         eval test \$${pfx_no_}cc_type = "gcc" &&
4059             add_${pfx}cppflags -D__printf__=__gnu_printf__
4060     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4061          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4062         eval ${pfx}libc_type=mingw32
4063         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4064             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4065             die "ERROR: MinGW32 runtime version must be >= 3.15."
4066         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4067         eval test \$${pfx_no_}cc_type = "gcc" &&
4068             add_${pfx}cppflags -D__printf__=__gnu_printf__
4069     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4070         eval ${pfx}libc_type=msvcrt
4071         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4072         # 0x601 by default unless something else is set by the user.
4073         # This can easily lead to us detecting functions only present
4074         # in such new versions and producing binaries requiring windows 7.0.
4075         # Therefore explicitly set the default to XP unless the user has
4076         # set something else on the command line.
4077         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4078             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4079     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4080         eval ${pfx}libc_type=klibc
4081     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4082         eval ${pfx}libc_type=bionic
4083     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4084         eval ${pfx}libc_type=solaris
4085         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4086     fi
4087 }
4088
4089 probe_libc
4090 test -n "$libc_type" && enable libc_$libc_type
4091 probe_libc host_
4092 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4093
4094 case $libc_type in
4095     bionic)
4096         add_compat strtod.o strtod=avpriv_strtod
4097         ;;
4098     msvcrt)
4099         add_compat strtod.o strtod=avpriv_strtod
4100         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4101                                      _snprintf=avpriv_snprintf  \
4102                                      vsnprintf=avpriv_vsnprintf
4103         ;;
4104 esac
4105
4106 # hacks for compiler/libc/os combinations
4107
4108 if enabled_all tms470 libc_glibc; then
4109     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4110     add_cppflags -D__USER_LABEL_PREFIX__=
4111     add_cppflags -D__builtin_memset=memset
4112     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4113     add_cflags   -pds=48    # incompatible redefinition of macro
4114 fi
4115
4116 if enabled_all ccc libc_glibc; then
4117     add_ldflags -Wl,-z,now  # calls to libots crash without this
4118 fi
4119
4120 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4121     add_cppflags '-I\$(SRC_PATH)/compat/float'
4122
4123 esc(){
4124     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4125 }
4126
4127 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4128
4129 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4130
4131 set_default $PATHS_LIST
4132 set_default nm
4133
4134 # we need to build at least one lib type
4135 if ! enabled_any static shared; then
4136     cat <<EOF
4137 At least one library type must be built.
4138 Specify --enable-static to build the static libraries or --enable-shared to
4139 build the shared libraries as well. To only build the shared libraries specify
4140 --disable-static in addition to --enable-shared.
4141 EOF
4142     exit 1;
4143 fi
4144
4145 die_license_disabled() {
4146     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4147 }
4148
4149 die_license_disabled_gpl() {
4150     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4151 }
4152
4153 die_license_disabled gpl frei0r
4154 die_license_disabled gpl libcdio
4155 die_license_disabled gpl libutvideo
4156 die_license_disabled gpl libvidstab
4157 die_license_disabled gpl libx264
4158 die_license_disabled gpl libx265
4159 die_license_disabled gpl libxavs
4160 die_license_disabled gpl libxvid
4161 die_license_disabled gpl libzvbi
4162 die_license_disabled gpl x11grab
4163
4164 die_license_disabled nonfree libaacplus
4165 die_license_disabled nonfree libfaac
4166 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4167 enabled gpl && die_license_disabled_gpl nonfree openssl
4168
4169 die_license_disabled version3 libopencore_amrnb
4170 die_license_disabled version3 libopencore_amrwb
4171 die_license_disabled version3 libvo_aacenc
4172 die_license_disabled version3 libvo_amrwbenc
4173
4174 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4175
4176 disabled optimizations || check_cflags -fomit-frame-pointer
4177
4178 enable_weak_pic() {
4179     disabled pic && return
4180     enable pic
4181     add_cppflags -DPIC
4182     case "$target_os" in
4183     mingw*|cygwin*)
4184         ;;
4185     *)
4186         add_cflags -fPIC
4187         ;;
4188     esac
4189     add_asflags  -fPIC
4190 }
4191
4192 enabled pic && enable_weak_pic
4193
4194 check_cc <<EOF || die "Symbol mangling check failed."
4195 int ff_extern;
4196 EOF
4197 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4198 extern_prefix=${sym%%ff_extern*}
4199
4200 check_cc <<EOF && enable_weak inline_asm
4201 void foo(void) { __asm__ volatile ("" ::); }
4202 EOF
4203
4204 _restrict=
4205 for restrict_keyword in restrict __restrict__ __restrict; do
4206     check_cc <<EOF && _restrict=$restrict_keyword && break
4207 void foo(char * $restrict_keyword p);
4208 EOF
4209 done
4210
4211 check_cc <<EOF && enable pragma_deprecated
4212 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4213 EOF
4214
4215 check_cc <<EOF && enable attribute_packed
4216 struct { int x; } __attribute__((packed)) x;
4217 EOF
4218
4219 check_cc <<EOF && enable attribute_may_alias
4220 union { int x; } __attribute__((may_alias)) x;
4221 EOF
4222
4223 check_cc <<EOF || die "endian test failed"
4224 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4225 EOF
4226 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4227
4228 check_inline_asm inline_asm_labels '"1:\n"'
4229
4230 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4231
4232 if enabled aarch64; then
4233     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4234     # internal assembler in clang 3.3 does not support this instruction
4235     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4236     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4237
4238     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4239
4240 elif enabled alpha; then
4241
4242     check_cflags -mieee
4243
4244 elif enabled arm; then
4245
4246     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4247 float func(float a, float b){ return a+b; }
4248 EOF
4249
4250     enabled thumb && check_cflags -mthumb || check_cflags -marm
4251     nogas=die
4252
4253     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4254         enable vfp_args
4255     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4256         case "${cross_prefix:-$cc}" in
4257             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4258             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4259 __asm__ (".eabi_attribute 28, 1");
4260 int main(void) { return 0; }
4261 EOF
4262         esac
4263         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4264     fi
4265
4266     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4267     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4268     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4269     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4270     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4271     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4272
4273     [ $target_os = linux ] ||
4274         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4275             $ARCH_EXT_LIST_ARM
4276
4277     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4278
4279     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4280
4281 elif enabled mips; then
4282
4283     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4284     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4285      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4286     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4287      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4288     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4289      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4290     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4291      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4292
4293 elif enabled parisc; then
4294
4295     if enabled gcc; then
4296         case $($cc -dumpversion) in
4297             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4298         esac
4299     fi
4300
4301 elif enabled ppc; then
4302
4303     enable local_aligned_8 local_aligned_16 local_aligned_32
4304
4305     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4306     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4307     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4308     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4309
4310     # AltiVec flags: The FSF version of GCC differs from the Apple version
4311     if enabled altivec; then
4312         if ! enabled_any pic ppc64; then
4313             nogas=warn
4314         fi
4315         check_cflags -maltivec -mabi=altivec &&
4316         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4317         check_cflags -faltivec
4318
4319         # check if our compiler supports Motorola AltiVec C API
4320         check_cc <<EOF || disable altivec
4321 $inc_altivec_h
4322 int main(void) {
4323     vector signed int v1 = (vector signed int) { 0 };
4324     vector signed int v2 = (vector signed int) { 1 };
4325     v1 = vec_add(v1, v2);
4326     return 0;
4327 }
4328 EOF
4329
4330         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4331     fi
4332
4333 elif enabled x86; then
4334
4335     check_builtin rdtsc    intrin.h   "__rdtsc()"
4336     check_builtin mm_empty mmintrin.h "_mm_empty()"
4337
4338     enable local_aligned_8 local_aligned_16 local_aligned_32
4339
4340     # check whether EBP is available on x86
4341     # As 'i' is stored on the stack, this program will crash
4342     # if the base pointer is used to access it because the
4343     # base pointer is cleared in the inline assembly code.
4344     check_exec_crash <<EOF && enable ebp_available
4345 volatile int i=0;
4346 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4347 return i;
4348 EOF
4349
4350     # check whether EBX is available on x86
4351     check_inline_asm ebx_available '""::"b"(0)' &&
4352         check_inline_asm ebx_available '"":::"%ebx"'
4353
4354     # check whether xmm clobbers are supported
4355     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4356
4357     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4358         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4359
4360     # check whether binutils is new enough to compile SSSE3/MMXEXT
4361     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4362     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4363
4364     if ! disabled_any asm mmx yasm; then
4365         if check_cmd $yasmexe --version; then
4366             enabled x86_64 && yasm_extra="-m amd64"
4367             yasm_debug="-g dwarf2"
4368         elif check_cmd nasm -v; then
4369             yasmexe=nasm
4370             yasm_debug="-g -F dwarf"
4371             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4372         fi
4373
4374         YASMFLAGS="-f $objformat $yasm_extra"
4375         enabled pic               && append YASMFLAGS "-DPIC"
4376         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4377         case "$objformat" in
4378             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4379         esac
4380
4381         check_yasm "movbe ecx, [5]" && enable yasm ||
4382             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4383         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4384         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4385         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4386         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4387         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4388         check_yasm "CPU amdnop" || disable cpunop
4389     fi
4390
4391     case "$cpu" in
4392         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4393             disable fast_clz
4394         ;;
4395     esac
4396
4397 fi
4398
4399 if enabled asm; then
4400     as=${gas:=$as}
4401     check_as <<EOF && enable gnu_as || \
4402         $nogas "GNU assembler not found, install gas-preprocessor"
4403 .macro m n
4404 \n: .int 0
4405 .endm
4406 m x
4407 EOF
4408 fi
4409
4410 check_ldflags -Wl,--as-needed
4411
4412 if check_func dlopen; then
4413     ldl=
4414 elif check_func dlopen -ldl; then
4415     ldl=-ldl
4416 fi
4417
4418 if ! disabled network; then
4419     check_func getaddrinfo $network_extralibs
4420     check_func getservbyport $network_extralibs
4421     check_func inet_aton $network_extralibs
4422
4423     check_type netdb.h "struct addrinfo"
4424     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4425     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4426     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4427     check_type poll.h "struct pollfd"
4428     check_type netinet/sctp.h "struct sctp_event_subscribe"
4429     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4430     check_type netinet/in.h "struct sockaddr_in6"
4431     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4432     check_type "sys/types.h sys/socket.h" socklen_t
4433
4434     # Prefer arpa/inet.h over winsock2
4435     if check_header arpa/inet.h ; then
4436         check_func closesocket
4437     elif check_header winsock2.h ; then
4438         check_func_headers winsock2.h closesocket -lws2 &&
4439             network_extralibs="-lws2" ||
4440         { check_func_headers winsock2.h closesocket -lws2_32 &&
4441             network_extralibs="-lws2_32"; } || disable winsock2_h network
4442         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4443
4444         check_type ws2tcpip.h socklen_t
4445         check_type ws2tcpip.h "struct addrinfo"
4446         check_type ws2tcpip.h "struct group_source_req"
4447         check_type ws2tcpip.h "struct ip_mreq_source"
4448         check_type ws2tcpip.h "struct ipv6_mreq"
4449         check_type winsock2.h "struct pollfd"
4450         check_struct winsock2.h "struct sockaddr" sa_len
4451         check_type ws2tcpip.h "struct sockaddr_in6"
4452         check_type ws2tcpip.h "struct sockaddr_storage"
4453     else
4454         disable network
4455     fi
4456 fi
4457
4458 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4459 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4460 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4461 check_builtin sarestart signal.h "SA_RESTART"
4462 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4463
4464 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4465 check_func  ${malloc_prefix}memalign            && enable memalign
4466 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4467
4468 check_func  access
4469 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4470 check_func  fcntl
4471 check_func  fork
4472 check_func  gethrtime
4473 check_func  getopt
4474 check_func  getrusage
4475 check_func  gettimeofday
4476 check_func  isatty
4477 check_func  localtime_r
4478 check_func  mach_absolute_time
4479 check_func  mkstemp
4480 check_func  mmap
4481 check_func  mprotect
4482 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4483 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4484 check_func  sched_getaffinity
4485 check_func  setrlimit
4486 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4487 check_func  strerror_r
4488 check_func  sysconf
4489 check_func  sysctl
4490 check_func  usleep
4491
4492 check_func_headers conio.h kbhit
4493 check_func_headers io.h setmode
4494 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4495 check_func_headers stdlib.h getenv
4496
4497 check_func_headers windows.h GetProcessAffinityMask
4498 check_func_headers windows.h GetProcessTimes
4499 check_func_headers windows.h GetSystemTimeAsFileTime
4500 check_func_headers windows.h MapViewOfFile
4501 check_func_headers windows.h PeekNamedPipe
4502 check_func_headers windows.h SetConsoleTextAttribute
4503 check_func_headers windows.h Sleep
4504 check_func_headers windows.h VirtualAlloc
4505 check_func_headers glob.h glob
4506 enabled xlib &&
4507     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4508
4509 check_header cl/cl.h
4510 check_header direct.h
4511 check_header dlfcn.h
4512 check_header dxva.h
4513 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4514 check_header io.h
4515 check_header libcrystalhd/libcrystalhd_if.h
4516 check_header mach/mach_time.h
4517 check_header malloc.h
4518 check_header poll.h
4519 check_header sys/mman.h
4520 check_header sys/param.h
4521 check_header sys/resource.h
4522 check_header sys/select.h
4523 check_header sys/time.h
4524 check_header sys/un.h
4525 check_header termios.h
4526 check_header unistd.h
4527 check_header vdpau/vdpau.h
4528 check_header vdpau/vdpau_x11.h
4529 check_header VideoDecodeAcceleration/VDADecoder.h
4530 check_header windows.h
4531 check_header X11/extensions/XvMClib.h
4532 check_header asm/types.h
4533
4534 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4535 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4536 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4537
4538 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4539
4540 if ! disabled w32threads && ! enabled pthreads; then
4541     check_func_headers "windows.h process.h" _beginthreadex &&
4542         enable w32threads || disable w32threads
4543 fi
4544
4545 # check for some common methods of building with pthread support
4546 # do this before the optional library checks as some of them require pthreads
4547 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4548     enable pthreads
4549     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4550         add_cflags -pthread
4551         add_extralibs -pthread
4552     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4553         add_cflags -pthreads
4554         add_extralibs -pthreads
4555     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4556         add_extralibs -lpthreadGC2
4557     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4558         :
4559     elif ! check_func pthread_join && ! check_func pthread_create; then
4560         disable pthreads
4561     fi
4562     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4563 fi
4564
4565
4566 if enabled pthreads; then
4567   check_func pthread_cancel
4568 fi
4569
4570 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4571 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4572
4573 check_lib math.h sin -lm && LIBM="-lm"
4574 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4575
4576 atan2f_args=2
4577 ldexpf_args=2
4578 powf_args=2
4579
4580 for func in $MATH_FUNCS; do
4581     eval check_mathfunc $func \${${func}_args:-1}
4582 done
4583
4584 # these are off by default, so fail if requested and not available
4585 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4586 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4587                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4588                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4589 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4590 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4591 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4592 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4593 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4594 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4595 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4596 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4597 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4598                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4599                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4600 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4601 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4602 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4603 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"
4604 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4605 enabled fontconfig        && enable libfontconfig
4606 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4607 enabled libfreetype       && require_libfreetype
4608 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4609 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4610                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4611                                done || die "ERROR: libgsm not found"; }
4612 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4613 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4614 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4615 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4616 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4617 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4618 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4619 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4620                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4621                                die "ERROR: libopenjpeg not found"; }
4622 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4623 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4624 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4625 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4626 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4627 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4628 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4629 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4630 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4631 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4632     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4633     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4634 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4635 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4636                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4637                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4638 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4639 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4640 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4641 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4642 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4643 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4644 enabled libvpx            && {
4645     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4646                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4647     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 ||
4648                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4649     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4650     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; } }
4651 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4652 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4653 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4654                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4655                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4656 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4657                              { check_cpp_condition x265.h "X265_BUILD >= 13" ||
4658                                die "ERROR: libx265 version must be >= 13."; }
4659 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4660 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4661 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4662 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4663 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4664                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4665                                die "ERROR: openal not found"; } &&
4666                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4667                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4668 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4669                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4670                                die "ERROR: opencl not found"; } &&
4671                              { ! enabled_any w32threads os2threads ||
4672                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4673                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4674                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4675                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4676 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4677                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4678                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4679                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4680                                die "ERROR: opengl not found."
4681                              }
4682 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4683                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4684                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4685                                die "ERROR: openssl not found"; }
4686 enabled qtkit_indev      && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4687
4688 if enabled gnutls; then
4689     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4690     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4691 fi
4692
4693 # libdc1394 check
4694 if enabled libdc1394; then
4695     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4696         enable libdc1394_2; } ||
4697     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4698         enable libdc1394_1; } ||
4699     die "ERROR: No version of libdc1394 found "
4700 fi
4701
4702 SDL_CONFIG="${cross_prefix}sdl-config"
4703 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4704     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4705     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4706     enable sdl
4707 else
4708   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4709     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4710     sdl_libs=$("${SDL_CONFIG}" --libs)
4711     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4712     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4713     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4714     enable sdl
4715   fi
4716 fi
4717 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4718
4719 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4720 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4721 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4722 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4723 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4724
4725 check_header linux/fb.h
4726 check_header linux/videodev.h
4727 check_header linux/videodev2.h
4728 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4729
4730 check_header sys/videoio.h
4731
4732 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4733 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4734 # w32api 3.12 had it defined wrong
4735 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4736
4737 check_type "dshow.h" IBaseFilter
4738
4739 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4740 { check_header dev/bktr/ioctl_meteor.h &&
4741   check_header dev/bktr/ioctl_bt848.h; } ||
4742 { check_header machine/ioctl_meteor.h &&
4743   check_header machine/ioctl_bt848.h; } ||
4744 { check_header dev/video/meteor/ioctl_meteor.h &&
4745   check_header dev/video/bktr/ioctl_bt848.h; } ||
4746 check_header dev/ic/bt8xx.h
4747
4748 check_header sndio.h
4749 if check_struct sys/soundcard.h audio_buf_info bytes; then
4750     enable_safe sys/soundcard.h
4751 else
4752     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4753     #include <sys/soundcard.h>
4754     audio_buf_info abc;
4755 EOF
4756 fi
4757 check_header soundcard.h
4758
4759 enabled_any alsa_indev alsa_outdev &&
4760     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4761
4762 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4763     check_func jack_port_get_latency_range -ljack
4764
4765 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4766
4767 if enabled libcdio; then
4768     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4769     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4770     die "ERROR: libcdio-paranoia not found"
4771 fi
4772
4773 enabled xlib &&
4774     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4775
4776 enabled x11grab                                           &&
4777 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4778 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4779 { enabled xlib || die "ERROR: Xlib not found"; }
4780
4781 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
4782
4783 enabled vaapi &&
4784     check_lib va/va.h vaInitialize -lva ||
4785     disable vaapi
4786
4787 enabled vdpau &&
4788     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4789     disable vdpau
4790
4791 enabled vdpau && enabled xlib &&
4792     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4793     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4794     enable vdpau_x11
4795
4796 # Funny iconv installations are not unusual, so check it after all flags have been set
4797 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4798
4799 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4800
4801 # add some useful compiler flags if supported
4802 check_cflags -Wdeclaration-after-statement
4803 check_cflags -Wall
4804 check_cflags -Wdisabled-optimization
4805 check_cflags -Wpointer-arith
4806 check_cflags -Wredundant-decls
4807 check_cflags -Wwrite-strings
4808 check_cflags -Wtype-limits
4809 check_cflags -Wundef
4810 check_cflags -Wmissing-prototypes
4811 check_cflags -Wno-pointer-to-int-cast
4812 check_cflags -Wstrict-prototypes
4813 check_cflags -Wempty-body
4814 enabled extra_warnings && check_cflags -Winline
4815
4816 check_disable_warning(){
4817     warning_flag=-W${1#-Wno-}
4818     test_cflags $warning_flag && add_cflags $1
4819 }
4820
4821 check_disable_warning -Wno-parentheses
4822 check_disable_warning -Wno-switch
4823 check_disable_warning -Wno-format-zero-length
4824 check_disable_warning -Wno-pointer-sign
4825
4826 # add some linker flags
4827 check_ldflags -Wl,--warn-common
4828 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4829 enabled rpath && add_ldflags -Wl,-rpath,$libdir
4830 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4831
4832 # add some strip flags
4833 # -wN '..@*' is more selective than -x, but not available everywhere.
4834 check_stripflags -wN \'..@*\' || check_stripflags -x
4835
4836 enabled neon_clobber_test &&
4837     check_ldflags -Wl,--wrap,avcodec_open2              \
4838                   -Wl,--wrap,avcodec_decode_audio4      \
4839                   -Wl,--wrap,avcodec_decode_video2      \
4840                   -Wl,--wrap,avcodec_decode_subtitle2   \
4841                   -Wl,--wrap,avcodec_encode_audio2      \
4842                   -Wl,--wrap,avcodec_encode_video2      \
4843                   -Wl,--wrap,avcodec_encode_subtitle    \
4844                   -Wl,--wrap,swr_convert                \
4845                   -Wl,--wrap,avresample_convert ||
4846     disable neon_clobber_test
4847
4848 enabled xmm_clobber_test &&
4849     check_ldflags -Wl,--wrap,avcodec_open2              \
4850                   -Wl,--wrap,avcodec_decode_audio4      \
4851                   -Wl,--wrap,avcodec_decode_video2      \
4852                   -Wl,--wrap,avcodec_decode_subtitle2   \
4853                   -Wl,--wrap,avcodec_encode_audio2      \
4854                   -Wl,--wrap,avcodec_encode_video       \
4855                   -Wl,--wrap,avcodec_encode_video2      \
4856                   -Wl,--wrap,avcodec_encode_subtitle    \
4857                   -Wl,--wrap,swr_convert                \
4858                   -Wl,--wrap,avresample_convert         \
4859                   -Wl,--wrap,sws_scale ||
4860     disable xmm_clobber_test
4861
4862 echo "X{};" > $TMPV
4863 if test_ldflags -Wl,--version-script,$TMPV; then
4864     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4865     check_cc <<EOF && enable symver_asm_label
4866 void ff_foo(void) __asm__ ("av_foo@VERSION");
4867 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4868 EOF
4869     check_cc <<EOF && enable symver_gnu_asm
4870 __asm__(".symver ff_foo,av_foo@VERSION");
4871 void ff_foo(void) {}
4872 EOF
4873 fi
4874
4875 if [ -z "$optflags" ]; then
4876     if enabled small; then
4877         optflags=$cflags_size
4878     elif enabled optimizations; then
4879         optflags=$cflags_speed
4880     else
4881         optflags=$cflags_noopt
4882     fi
4883 fi
4884
4885 check_optflags(){
4886     check_cflags "$@"
4887     enabled lto && check_ldflags "$@"
4888 }
4889
4890
4891 if enabled lto; then
4892     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4893     check_cflags  -flto
4894     check_ldflags -flto $cpuflags
4895 fi
4896
4897 check_optflags $optflags
4898 check_optflags -fno-math-errno
4899 check_optflags -fno-signed-zeros
4900
4901 enabled ftrapv && check_cflags -ftrapv
4902
4903 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4904 int x;
4905 EOF
4906
4907
4908 if enabled icc; then
4909     # Just warnings, no remarks
4910     check_cflags -w1
4911     # -wd: Disable following warnings
4912     # 144, 167, 556: -Wno-pointer-sign
4913     # 188: enumerated type mixed with another type
4914     # 1292: attribute "foo" ignored
4915     # 1419: external declaration in primary source file
4916     # 10006: ignoring unknown option -fno-signed-zeros
4917     # 10148: ignoring unknown option -Wno-parentheses
4918     # 10156: ignoring option '-W'; no argument required
4919     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4920     # 11030: Warning unknown option --as-needed
4921     # 10156: ignoring option '-export'; no argument required
4922     check_ldflags -wd10156,11030
4923     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4924     enable ebp_available
4925     if enabled x86_32; then
4926         icc_version=$($cc -dumpversion)
4927         test ${icc_version%%.*} -ge 11 &&
4928             check_cflags -falign-stack=maintain-16-byte ||
4929             disable aligned_stack
4930     fi
4931 elif enabled ccc; then
4932     # disable some annoying warnings
4933     add_cflags -msg_disable bitnotint
4934     add_cflags -msg_disable mixfuncvoid
4935     add_cflags -msg_disable nonstandcast
4936     add_cflags -msg_disable unsupieee
4937 elif enabled gcc; then
4938     check_optflags -fno-tree-vectorize
4939     check_cflags -Werror=implicit-function-declaration
4940     check_cflags -Werror=missing-prototypes
4941     check_cflags -Werror=return-type
4942     check_cflags -Werror=vla
4943     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4944 elif enabled llvm_gcc; then
4945     check_cflags -mllvm -stack-alignment=16
4946 elif enabled clang; then
4947     check_cflags -mllvm -stack-alignment=16
4948     check_cflags -Qunused-arguments
4949     check_cflags -Werror=implicit-function-declaration
4950     check_cflags -Werror=missing-prototypes
4951     check_cflags -Werror=return-type
4952 elif enabled cparser; then
4953     add_cflags -Wno-missing-variable-declarations
4954     add_cflags -Wno-empty-statement
4955 elif enabled armcc; then
4956     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4957     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4958     # 2523: use of inline assembler is deprecated
4959     add_cflags -W${armcc_opt},--diag_suppress=2523
4960     add_cflags -W${armcc_opt},--diag_suppress=1207
4961     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4962     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4963     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4964     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4965 elif enabled tms470; then
4966     add_cflags -pds=824 -pds=837
4967     disable inline_asm
4968 elif enabled pathscale; then
4969     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4970 elif enabled_any msvc icl; then
4971     enabled x86_32 && disable aligned_stack
4972     enabled_all x86_32 debug && add_cflags -Oy-
4973     enabled debug && add_ldflags -debug
4974     enable pragma_deprecated
4975     if enabled icl; then
4976         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4977         # (correctly) on icl 13.x.
4978         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4979             add_cflags -Qansi-alias
4980         # icl will pass the inline asm tests but inline asm is currently
4981         # not supported (build will fail)
4982         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4983         disable inline_asm
4984     fi
4985 fi
4986
4987 case $as_type in
4988     clang)
4989         add_asflags -Qunused-arguments
4990     ;;
4991 esac
4992
4993 case $ld_type in
4994     clang)
4995         check_ldflags -Qunused-arguments
4996     ;;
4997 esac
4998
4999 case $target_os in
5000     osf1)
5001         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5002     ;;
5003     plan9)
5004         add_cppflags -Dmain=plan9_main
5005     ;;
5006 esac
5007
5008 enable frame_thread_encoder
5009
5010 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5011
5012 check_deps $CONFIG_LIST       \
5013            $CONFIG_EXTRA      \
5014            $HAVE_LIST         \
5015            $ALL_COMPONENTS    \
5016
5017 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"
5018
5019
5020 if test $target_os = "haiku"; then
5021     disable memalign
5022     disable posix_memalign
5023 fi
5024
5025 ! enabled_any memalign posix_memalign aligned_malloc &&
5026     enabled_any $need_memalign && enable memalign_hack
5027
5028 # add_dep lib dep
5029 # -> enable ${lib}_deps_${dep}
5030 # -> add $dep to ${lib}_deps only once
5031 add_dep() {
5032     lib=$1
5033     dep=$2
5034     enabled "${lib}_deps_${dep}" && return 0
5035     enable  "${lib}_deps_${dep}"
5036     prepend "${lib}_deps" $dep
5037 }
5038
5039 # merge deps lib components
5040 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5041 merge_deps() {
5042     lib=$1
5043     shift
5044     for comp in $*; do
5045         enabled $comp || continue
5046         eval "dep=\"\$${comp}_deps\""
5047         for d in $dep; do
5048             add_dep $lib $d
5049         done
5050     done
5051 }
5052
5053 merge_deps libavfilter $FILTER_LIST
5054
5055 for thread in $THREADS_LIST; do
5056     if enabled $thread; then
5057         test -n "$thread_type" &&
5058             die "ERROR: Only one thread type must be selected." ||
5059             thread_type="$thread"
5060     fi
5061 done
5062
5063 echo "install prefix            $prefix"
5064 echo "source path               $source_path"
5065 echo "C compiler                $cc"
5066 echo "C library                 $libc_type"
5067 if test "$host_cc" != "$cc"; then
5068     echo "host C compiler           $host_cc"
5069     echo "host C library            $host_libc_type"
5070 fi
5071 echo "ARCH                      $arch ($cpu)"
5072 if test "$build_suffix" != ""; then
5073     echo "build suffix              $build_suffix"
5074 fi
5075 if test "$progs_suffix" != ""; then
5076     echo "progs suffix              $progs_suffix"
5077 fi
5078 if test "$extra_version" != ""; then
5079     echo "version string suffix     $extra_version"
5080 fi
5081 echo "big-endian                ${bigendian-no}"
5082 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5083 if enabled x86; then
5084     echo "${yasmexe}                      ${yasm-no}"
5085     echo "MMX enabled               ${mmx-no}"
5086     echo "MMXEXT enabled            ${mmxext-no}"
5087     echo "3DNow! enabled            ${amd3dnow-no}"
5088     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5089     echo "SSE enabled               ${sse-no}"
5090     echo "SSSE3 enabled             ${ssse3-no}"
5091     echo "AVX enabled               ${avx-no}"
5092     echo "XOP enabled               ${xop-no}"
5093     echo "FMA3 enabled              ${fma3-no}"
5094     echo "FMA4 enabled              ${fma4-no}"
5095     echo "i686 features enabled     ${i686-no}"
5096     echo "CMOV is fast              ${fast_cmov-no}"
5097     echo "EBX available             ${ebx_available-no}"
5098     echo "EBP available             ${ebp_available-no}"
5099 fi
5100 if enabled aarch64; then
5101     echo "NEON enabled              ${neon-no}"
5102     echo "VFP enabled               ${vfp-no}"
5103 fi
5104 if enabled arm; then
5105     echo "ARMv5TE enabled           ${armv5te-no}"
5106     echo "ARMv6 enabled             ${armv6-no}"
5107     echo "ARMv6T2 enabled           ${armv6t2-no}"
5108     echo "VFP enabled               ${vfp-no}"
5109     echo "NEON enabled              ${neon-no}"
5110     echo "THUMB enabled             ${thumb-no}"
5111 fi
5112 if enabled mips; then
5113     echo "MIPS FPU enabled          ${mipsfpu-no}"
5114     echo "MIPS32R2 enabled          ${mips32r2-no}"
5115     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5116     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5117 fi
5118 if enabled ppc; then
5119     echo "AltiVec enabled           ${altivec-no}"
5120     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5121     echo "dcbzl available           ${dcbzl-no}"
5122 fi
5123 echo "debug symbols             ${debug-no}"
5124 echo "strip symbols             ${stripping-no}"
5125 echo "optimize for size         ${small-no}"
5126 echo "optimizations             ${optimizations-no}"
5127 echo "static                    ${static-no}"
5128 echo "shared                    ${shared-no}"
5129 echo "postprocessing support    ${postproc-no}"
5130 echo "new filter support        ${avfilter-no}"
5131 echo "network support           ${network-no}"
5132 echo "threading support         ${thread_type-no}"
5133 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5134 echo "SDL support               ${sdl-no}"
5135 echo "opencl enabled            ${opencl-no}"
5136 echo "libzvbi enabled           ${libzvbi-no}"
5137 echo "texi2html enabled         ${texi2html-no}"
5138 echo "perl enabled              ${perl-no}"
5139 echo "pod2man enabled           ${pod2man-no}"
5140 echo "makeinfo enabled          ${makeinfo-no}"
5141 test -n "$random_seed" &&
5142     echo "random seed               ${random_seed}"
5143 echo
5144
5145 echo "External libraries:"
5146 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5147 echo
5148
5149 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5150     echo "Enabled ${type}s:"
5151     eval list=\$$(toupper $type)_LIST
5152     print_enabled '_*' $list | print_3_columns
5153     echo
5154 done
5155
5156 license="LGPL version 2.1 or later"
5157 if enabled nonfree; then
5158     license="nonfree and unredistributable"
5159 elif enabled gplv3; then
5160     license="GPL version 3 or later"
5161 elif enabled lgplv3; then
5162     license="LGPL version 3 or later"
5163 elif enabled gpl; then
5164     license="GPL version 2 or later"
5165 fi
5166
5167 echo "License: $license"
5168
5169 echo "Creating config.mak, config.h, and doc/config.texi..."
5170
5171 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5172
5173 enabled stripping || strip="echo skipping strip"
5174
5175 config_files="$TMPH config.mak doc/config.texi"
5176
5177 cat > config.mak <<EOF
5178 # Automatically generated by configure - do not modify!
5179 ifndef FFMPEG_CONFIG_MAK
5180 FFMPEG_CONFIG_MAK=1
5181 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5182 prefix=$prefix
5183 LIBDIR=\$(DESTDIR)$libdir
5184 SHLIBDIR=\$(DESTDIR)$shlibdir
5185 INCDIR=\$(DESTDIR)$incdir
5186 BINDIR=\$(DESTDIR)$bindir
5187 DATADIR=\$(DESTDIR)$datadir
5188 DOCDIR=\$(DESTDIR)$docdir
5189 MANDIR=\$(DESTDIR)$mandir
5190 SRC_PATH=$source_path
5191 ifndef MAIN_MAKEFILE
5192 SRC_PATH:=\$(SRC_PATH:.%=..%)
5193 endif
5194 CC_IDENT=$cc_ident
5195 ARCH=$arch
5196 CC=$cc
5197 CXX=$cxx
5198 AS=$as
5199 LD=$ld
5200 DEPCC=$dep_cc
5201 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5202 DEPAS=$as
5203 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5204 YASM=$yasmexe
5205 DEPYASM=$yasmexe
5206 AR=$ar
5207 ARFLAGS=$arflags
5208 AR_O=$ar_o
5209 RANLIB=$ranlib
5210 STRIP=$strip
5211 CP=cp -p
5212 LN_S=$ln_s
5213 CPPFLAGS=$CPPFLAGS
5214 CFLAGS=$CFLAGS
5215 CXXFLAGS=$CXXFLAGS
5216 ASFLAGS=$ASFLAGS
5217 AS_C=$AS_C
5218 AS_O=$AS_O
5219 CC_C=$CC_C
5220 CC_E=$CC_E
5221 CC_O=$CC_O
5222 CXX_C=$CXX_C
5223 CXX_O=$CXX_O
5224 LD_O=$LD_O
5225 LD_LIB=$LD_LIB
5226 LD_PATH=$LD_PATH
5227 DLLTOOL=$dlltool
5228 WINDRES=$windres
5229 DEPWINDRES=$dep_cc
5230 LDFLAGS=$LDFLAGS
5231 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5232 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5233 YASMFLAGS=$YASMFLAGS
5234 BUILDSUF=$build_suffix
5235 PROGSSUF=$progs_suffix
5236 FULLNAME=$FULLNAME
5237 LIBPREF=$LIBPREF
5238 LIBSUF=$LIBSUF
5239 LIBNAME=$LIBNAME
5240 SLIBPREF=$SLIBPREF
5241 SLIBSUF=$SLIBSUF
5242 EXESUF=$EXESUF
5243 EXTRA_VERSION=$extra_version
5244 CCDEP=$CCDEP
5245 CXXDEP=$CXXDEP
5246 CCDEP_FLAGS=$CCDEP_FLAGS
5247 ASDEP=$ASDEP
5248 ASDEP_FLAGS=$ASDEP_FLAGS
5249 CC_DEPFLAGS=$CC_DEPFLAGS
5250 AS_DEPFLAGS=$AS_DEPFLAGS
5251 HOSTCC=$host_cc
5252 HOSTLD=$host_ld
5253 HOSTCFLAGS=$host_cflags
5254 HOSTCPPFLAGS=$host_cppflags
5255 HOSTEXESUF=$HOSTEXESUF
5256 HOSTLDFLAGS=$host_ldflags
5257 HOSTLIBS=$host_libs
5258 DEPHOSTCC=$host_cc
5259 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5260 HOSTCCDEP=$HOSTCCDEP
5261 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5262 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5263 HOSTCC_C=$HOSTCC_C
5264 HOSTCC_O=$HOSTCC_O
5265 HOSTLD_O=$HOSTLD_O
5266 TARGET_EXEC=$target_exec $target_exec_args
5267 TARGET_PATH=$target_path
5268 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5269 CFLAGS-ffplay=$sdl_cflags
5270 ZLIB=$($ldflags_filter -lz)
5271 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5272 EXTRALIBS=$extralibs
5273 COMPAT_OBJS=$compat_objs
5274 EXEOBJS=$exeobjs
5275 INSTALL=$install
5276 LIBTARGET=${LIBTARGET}
5277 SLIBNAME=${SLIBNAME}
5278 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5279 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5280 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5281 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5282 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5283 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5284 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5285 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5286 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5287 NOREDZONE_FLAGS=$noredzone_flags
5288 EOF
5289
5290 get_version(){
5291     lcname=lib${1}
5292     name=$(toupper $lcname)
5293     file=$source_path/$lcname/version.h
5294     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5295     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5296     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5297     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5298     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5299     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5300 }
5301
5302 map 'get_version $v' $LIBRARY_LIST
5303
5304 print_program_libs(){
5305     eval "program_libs=\$${1}_libs"
5306     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5307 }
5308
5309 map 'print_program_libs $v' $PROGRAM_LIST
5310
5311 cat > $TMPH <<EOF
5312 /* Automatically generated by configure - do not modify! */
5313 #ifndef FFMPEG_CONFIG_H
5314 #define FFMPEG_CONFIG_H
5315 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5316 #define FFMPEG_LICENSE "$(c_escape $license)"
5317 #define CONFIG_THIS_YEAR 2014
5318 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5319 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5320 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5321 #define av_restrict $_restrict
5322 #define EXTERN_PREFIX "${extern_prefix}"
5323 #define EXTERN_ASM ${extern_prefix}
5324 #define BUILDSUF "$build_suffix"
5325 #define SLIBSUF "$SLIBSUF"
5326 #define HAVE_MMX2 HAVE_MMXEXT
5327 EOF
5328
5329 test -n "$assert_level" &&
5330     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5331
5332 test -n "$malloc_prefix" &&
5333     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5334
5335 if enabled yasm; then
5336     append config_files $TMPASM
5337     printf '' >$TMPASM
5338 fi
5339
5340 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5341
5342
5343 mkdir -p doc
5344 echo "@c auto-generated by configure" > doc/config.texi
5345
5346 print_config ARCH_   "$config_files" $ARCH_LIST
5347 print_config HAVE_   "$config_files" $HAVE_LIST
5348 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5349                                      $CONFIG_EXTRA      \
5350                                      $ALL_COMPONENTS    \
5351
5352 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5353 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5354
5355 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5356 cp_if_changed $TMPH config.h
5357 touch .config
5358
5359 enabled yasm && cp_if_changed $TMPASM config.asm
5360
5361 cat > $TMPH <<EOF
5362 /* Generated by ffconf */
5363 #ifndef AVUTIL_AVCONFIG_H
5364 #define AVUTIL_AVCONFIG_H
5365 EOF
5366
5367 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5368
5369 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5370
5371 cp_if_changed $TMPH libavutil/avconfig.h
5372
5373 if test -n "$WARNINGS"; then
5374     printf "\n$WARNINGS"
5375     enabled fatal_warnings && exit 1
5376 fi
5377
5378 # build pkg-config files
5379
5380 pkgconfig_generate(){
5381     name=$1
5382     shortname=${name#lib}${build_suffix}
5383     comment=$2
5384     version=$3
5385     libs=$4
5386     requires=$5
5387     enabled ${name#lib} || return 0
5388     mkdir -p $name
5389     cat <<EOF > $name/$name${build_suffix}.pc
5390 prefix=$prefix
5391 exec_prefix=\${prefix}
5392 libdir=$libdir
5393 includedir=$incdir
5394
5395 Name: $name
5396 Description: $comment
5397 Version: $version
5398 Requires: $(enabled shared || echo $requires)
5399 Requires.private: $(enabled shared && echo $requires)
5400 Conflicts:
5401 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5402 Libs.private: $(enabled shared && echo $libs)
5403 Cflags: -I\${includedir}
5404 EOF
5405
5406 mkdir -p doc/examples/pc-uninstalled
5407 includedir=${source_path}
5408 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5409     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5410 prefix=
5411 exec_prefix=
5412 libdir=\${pcfiledir}/../../../$name
5413 includedir=${includedir}
5414
5415 Name: $name
5416 Description: $comment
5417 Version: $version
5418 Requires: $requires
5419 Conflicts:
5420 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5421 Cflags: -I\${includedir}
5422 EOF
5423 }
5424
5425 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5426 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5427 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5428 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5429 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5430 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5431 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5432 lavfi_libs=${lavfi_libs%, }
5433
5434 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5435 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5436
5437 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5438 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5439 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5440 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5441 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5442 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5443 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5444 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5445 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"