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-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
 110   --enable-raise-major     increase major version numbers in sonames [no]
 111
 112 Program options:
 113   --disable-programs       do not build command line programs
 114   --disable-ffmpeg         disable ffmpeg build
 115   --disable-ffplay         disable ffplay build
 116   --disable-ffprobe        disable ffprobe build
 117   --disable-ffserver       disable ffserver build
 118
 119 Documentation options:
 120   --disable-doc            do not build documentation
 121   --disable-htmlpages      do not build HTML documentation pages
 122   --disable-manpages       do not build man documentation pages
 123   --disable-podpages       do not build POD documentation pages
 124   --disable-txtpages       do not build text documentation pages
 125
 126 Component options:
 127   --disable-avdevice       disable libavdevice build
 128   --disable-avcodec        disable libavcodec build
 129   --disable-avformat       disable libavformat build
 130   --disable-avutil         disable libavutil build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [auto]
 137   --disable-w32threads     disable Win32 threads [auto]
 138   --disable-os2threads     disable OS/2 threads [auto]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148
 149 Hardware accelerators:
 150   --disable-dxva2          disable DXVA2 code [autodetect]
 151   --disable-vaapi          disable VAAPI code [autodetect]
 152   --disable-vda            disable VDA code [autodetect]
 153   --disable-vdpau          disable VDPAU code [autodetect]
 154
 155 Individual component options:
 156   --disable-everything     disable all components listed below
 157   --disable-encoder=NAME   disable encoder NAME
 158   --enable-encoder=NAME    enable encoder NAME
 159   --disable-encoders       disable all encoders
 160   --disable-decoder=NAME   disable decoder NAME
 161   --enable-decoder=NAME    enable decoder NAME
 162   --disable-decoders       disable all decoders
 163   --disable-hwaccel=NAME   disable hwaccel NAME
 164   --enable-hwaccel=NAME    enable hwaccel NAME
 165   --disable-hwaccels       disable all hwaccels
 166   --disable-muxer=NAME     disable muxer NAME
 167   --enable-muxer=NAME      enable muxer NAME
 168   --disable-muxers         disable all muxers
 169   --disable-demuxer=NAME   disable demuxer NAME
 170   --enable-demuxer=NAME    enable demuxer NAME
 171   --disable-demuxers       disable all demuxers
 172   --enable-parser=NAME     enable parser NAME
 173   --disable-parser=NAME    disable parser NAME
 174   --disable-parsers        disable all parsers
 175   --enable-bsf=NAME        enable bitstream filter NAME
 176   --disable-bsf=NAME       disable bitstream filter NAME
 177   --disable-bsfs           disable all bitstream filters
 178   --enable-protocol=NAME   enable protocol NAME
 179   --disable-protocol=NAME  disable protocol NAME
 180   --disable-protocols      disable all protocols
 181   --enable-indev=NAME      enable input device NAME
 182   --disable-indev=NAME     disable input device NAME
 183   --disable-indevs         disable input devices
 184   --enable-outdev=NAME     enable output device NAME
 185   --disable-outdev=NAME    disable output device NAME
 186   --disable-outdevs        disable output devices
 187   --disable-devices        disable all devices
 188   --enable-filter=NAME     enable filter NAME
 189   --disable-filter=NAME    disable filter NAME
 190   --disable-filters        disable all filters
 191
 192 External library support:
 193   --enable-avisynth        enable reading of AviSynth script files [no]
 194   --disable-bzlib          disable bzlib [autodetect]
 195   --enable-fontconfig      enable fontconfig
 196   --enable-frei0r          enable frei0r video filtering
 197   --enable-gnutls          enable gnutls [no]
 198   --disable-iconv          disable iconv [autodetect]
 199   --enable-ladspa          enable LADSPA audio filtering
 200   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 201   --enable-libass          enable libass subtitles rendering [no]
 202   --enable-libbluray       enable BluRay reading using libbluray [no]
 203   --enable-libcaca         enable textual display using libcaca
 204   --enable-libcelt         enable CELT decoding via libcelt [no]
 205   --enable-libcdio         enable audio CD grabbing with libcdio
 206   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 207                            and libraw1394 [no]
 208   --enable-libfaac         enable AAC encoding via libfaac [no]
 209   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 210   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 211   --enable-libfreetype     enable libfreetype [no]
 212   --enable-libgme          enable Game Music Emu via libgme [no]
 213   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 214   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 215   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 216   --enable-libmodplug      enable ModPlug via libmodplug [no]
 217   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 218   --enable-libnut          enable NUT (de)muxing via libnut,
 219                            native (de)muxer exists [no]
 220   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 221   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 222   --enable-libopencv       enable video filtering via libopencv [no]
 223   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 224   --enable-libopus         enable Opus decoding via libopus [no]
 225   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 226   --enable-libquvi         enable quvi input via libquvi [no]
 227   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 228   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 229   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 230   --enable-libsoxr         enable Include libsoxr resampling [no]
 231   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 232   --enable-libssh          enable SFTP protocol via libssh [no]
 233   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 234   --enable-libtheora       enable Theora encoding via libtheora [no]
 235   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 236   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 237   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 238   --enable-libvidstab      enable video stabilization using vid.stab [no]
 239   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 240   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 241   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 242                            native implementation exists [no]
 243   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 244   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 245   --enable-libwebp         enable WebP encoding via libwebp [no]
 246   --enable-libx264         enable H.264 encoding via x264 [no]
 247   --enable-libx265         enable HEVC encoding via x265 [no]
 248   --enable-libxavs         enable AVS encoding via xavs [no]
 249   --enable-libxvid         enable Xvid encoding via xvidcore,
 250                            native MPEG-4/Xvid encoder exists [no]
 251   --enable-libzmq          enable message passing via libzmq [no]
 252   --enable-libzvbi         enable teletext support via libzvbi [no]
 253   --enable-decklink        enable Blackmagick DeckLink output [no]
 254   --enable-openal          enable OpenAL 1.1 capture support [no]
 255   --enable-opencl          enable OpenCL code
 256   --enable-opengl          enable OpenGL rendering [no]
 257   --enable-openssl         enable openssl [no]
 258   --enable-x11grab         enable X11 grabbing [no]
 259   --disable-xlib           disable xlib [autodetect]
 260   --disable-zlib           disable zlib [autodetect]
 261
 262 Toolchain options:
 263   --arch=ARCH              select architecture [$arch]
 264   --cpu=CPU                select the minimum required CPU (affects
 265                            instruction selection, may crash on older CPUs)
 266   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 267   --progs-suffix=SUFFIX    program name suffix []
 268   --enable-cross-compile   assume a cross-compiler is used
 269   --sysroot=PATH           root of cross-build tree
 270   --sysinclude=PATH        location of cross-build system headers
 271   --target-os=OS           compiler targets OS [$target_os]
 272   --target-exec=CMD        command to run executables on target
 273   --target-path=DIR        path to view of build directory on target
 274   --target-samples=DIR     path to samples directory on target
 275   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 276   --toolchain=NAME         set tool defaults according to NAME
 277   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 278   --nm=NM                  use nm tool NM [$nm_default]
 279   --ar=AR                  use archive tool AR [$ar_default]
 280   --as=AS                  use assembler AS [$as_default]
 281   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 282   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 283   --cc=CC                  use C compiler CC [$cc_default]
 284   --cxx=CXX                use C compiler CXX [$cxx_default]
 285   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 286   --ld=LD                  use linker LD [$ld_default]
 287   --pkg-config=PKGCONF     use pkg-config PKGCONF [$pkg_config_default]
 288   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 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 cc_o(){
 780     eval printf '%s\\n' $CC_O
 781 }
 782
 783 cc_e(){
 784     eval printf '%s\\n' $CC_E
 785 }
 786
 787 check_cc(){
 788     log check_cc "$@"
 789     cat > $TMPC
 790     log_file $TMPC
 791     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 792 }
 793
 794 check_cxx(){
 795     log check_cxx "$@"
 796     cat > $TMPCPP
 797     log_file $TMPCPP
 798     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 799 }
 800
 801 check_cpp(){
 802     log check_cpp "$@"
 803     cat > $TMPC
 804     log_file $TMPC
 805     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 806 }
 807
 808 as_o(){
 809     eval printf '%s\\n' $AS_O
 810 }
 811
 812 check_as(){
 813     log check_as "$@"
 814     cat > $TMPS
 815     log_file $TMPS
 816     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 817 }
 818
 819 check_inline_asm(){
 820     log check_inline_asm "$@"
 821     name="$1"
 822     code="$2"
 823     shift 2
 824     disable $name
 825     check_cc "$@" <<EOF && enable $name
 826 void foo(void){ __asm__ volatile($code); }
 827 EOF
 828 }
 829
 830 check_insn(){
 831     log check_insn "$@"
 832     check_inline_asm ${1}_inline "\"$2\""
 833     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 834 }
 835
 836 check_yasm(){
 837     log check_yasm "$@"
 838     echo "$1" > $TMPS
 839     log_file $TMPS
 840     shift 1
 841     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 842 }
 843
 844 ld_o(){
 845     eval printf '%s\\n' $LD_O
 846 }
 847
 848 check_ld(){
 849     log check_ld "$@"
 850     type=$1
 851     shift 1
 852     flags=$(filter_out '-l*|*.so' $@)
 853     libs=$(filter '-l*|*.so' $@)
 854     check_$type $($cflags_filter $flags) || return
 855     flags=$($ldflags_filter $flags)
 856     libs=$($ldflags_filter $libs)
 857     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 858 }
 859
 860 print_include(){
 861     hdr=$1
 862     test "${hdr%.h}" = "${hdr}" &&
 863         echo "#include $hdr"    ||
 864         echo "#include <$hdr>"
 865 }
 866
 867 check_code(){
 868     log check_code "$@"
 869     check=$1
 870     headers=$2
 871     code=$3
 872     shift 3
 873     {
 874         for hdr in $headers; do
 875             print_include $hdr
 876         done
 877         echo "int main(void) { $code; return 0; }"
 878     } | check_$check "$@"
 879 }
 880
 881 check_cppflags(){
 882     log check_cppflags "$@"
 883     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 884 int x;
 885 EOF
 886 }
 887
 888 test_cflags(){
 889     log test_cflags "$@"
 890     set -- $($cflags_filter "$@")
 891     check_cc "$@" <<EOF
 892 int x;
 893 EOF
 894 }
 895
 896 check_cflags(){
 897     log check_cflags "$@"
 898     test_cflags "$@" && add_cflags "$@"
 899 }
 900
 901 check_cxxflags(){
 902     log check_cxxflags "$@"
 903     set -- $($cflags_filter "$@")
 904     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 905 int x;
 906 EOF
 907 }
 908
 909 test_ldflags(){
 910     log test_ldflags "$@"
 911     check_ld "cc" "$@" <<EOF
 912 int main(void){ return 0; }
 913 EOF
 914 }
 915
 916 check_ldflags(){
 917     log check_ldflags "$@"
 918     test_ldflags "$@" && add_ldflags "$@"
 919 }
 920
 921 test_stripflags(){
 922     log test_stripflags "$@"
 923     # call check_cc to get a fresh TMPO
 924     check_cc <<EOF
 925 int main(void) { return 0; }
 926 EOF
 927     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 928 }
 929
 930 check_stripflags(){
 931     log check_stripflags "$@"
 932     test_stripflags "$@" && add_stripflags "$@"
 933 }
 934
 935 check_header(){
 936     log check_header "$@"
 937     header=$1
 938     shift
 939     disable_safe $header
 940     check_cpp "$@" <<EOF && enable_safe $header
 941 #include <$header>
 942 int x;
 943 EOF
 944 }
 945
 946 check_func(){
 947     log check_func "$@"
 948     func=$1
 949     shift
 950     disable $func
 951     check_ld "cc" "$@" <<EOF && enable $func
 952 extern int $func();
 953 int main(void){ $func(); }
 954 EOF
 955 }
 956
 957 check_mathfunc(){
 958     log check_mathfunc "$@"
 959     func=$1
 960     narg=$2
 961     shift 2
 962     test $narg = 2 && args="f, g" || args="f"
 963     disable $func
 964     check_ld "cc" "$@" <<EOF && enable $func
 965 #include <math.h>
 966 float foo(float f, float g) { return $func($args); }
 967 int main(void){ return (int) foo; }
 968 EOF
 969 }
 970
 971 check_func_headers(){
 972     log check_func_headers "$@"
 973     headers=$1
 974     funcs=$2
 975     shift 2
 976     {
 977         for hdr in $headers; do
 978             print_include $hdr
 979         done
 980         for func in $funcs; do
 981             echo "long check_$func(void) { return (long) $func; }"
 982         done
 983         echo "int main(void) { return 0; }"
 984     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 985 }
 986
 987 check_class_headers_cpp(){
 988     log check_class_headers_cpp "$@"
 989     headers=$1
 990     classes=$2
 991     shift 2
 992     {
 993         for hdr in $headers; do
 994             echo "#include <$hdr>"
 995         done
 996         echo "int main(void) { "
 997         i=1
 998         for class in $classes; do
 999             echo "$class obj$i;"
1000             i=$(expr $i + 1)
1001         done
1002         echo "return 0; }"
1003     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1004 }
1005
1006 check_cpp_condition(){
1007     log check_cpp_condition "$@"
1008     header=$1
1009     condition=$2
1010     shift 2
1011     check_cpp "$@" <<EOF
1012 #include <$header>
1013 #if !($condition)
1014 #error "unsatisfied condition: $condition"
1015 #endif
1016 EOF
1017 }
1018
1019 check_lib(){
1020     log check_lib "$@"
1021     header="$1"
1022     func="$2"
1023     shift 2
1024     check_header $header && check_func $func "$@" && add_extralibs "$@"
1025 }
1026
1027 check_lib2(){
1028     log check_lib2 "$@"
1029     headers="$1"
1030     funcs="$2"
1031     shift 2
1032     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1033 }
1034
1035 check_lib_cpp(){
1036     log check_lib_cpp "$@"
1037     headers="$1"
1038     classes="$2"
1039     shift 2
1040     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1041 }
1042
1043 check_pkg_config(){
1044     log check_pkg_config "$@"
1045     pkgandversion="$1"
1046     pkg="${1%% *}"
1047     headers="$2"
1048     funcs="$3"
1049     shift 3
1050     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1051     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1052     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1053     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1054         set_safe ${pkg}_cflags $pkg_cflags   &&
1055         set_safe ${pkg}_libs   $pkg_libs
1056 }
1057
1058 check_exec(){
1059     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1060 }
1061
1062 check_exec_crash(){
1063     code=$(cat)
1064
1065     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1066     # are safe but may not be available everywhere.  Thus we use
1067     # raise(SIGTERM) instead.  The check is run in a subshell so we
1068     # can redirect the "Terminated" message from the shell.  SIGBUS
1069     # is not defined by standard C so it is used conditionally.
1070
1071     (check_exec "$@") >> $logfile 2>&1 <<EOF
1072 #include <signal.h>
1073 static void sighandler(int sig){
1074     raise(SIGTERM);
1075 }
1076 int foo(void){
1077     $code
1078 }
1079 int (*func_ptr)(void) = foo;
1080 int main(void){
1081     signal(SIGILL, sighandler);
1082     signal(SIGFPE, sighandler);
1083     signal(SIGSEGV, sighandler);
1084 #ifdef SIGBUS
1085     signal(SIGBUS, sighandler);
1086 #endif
1087     return func_ptr();
1088 }
1089 EOF
1090 }
1091
1092 check_type(){
1093     log check_type "$@"
1094     headers=$1
1095     type=$2
1096     shift 2
1097     disable_safe "$type"
1098     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1099 }
1100
1101 check_struct(){
1102     log check_struct "$@"
1103     headers=$1
1104     struct=$2
1105     member=$3
1106     shift 3
1107     disable_safe "${struct}_${member}"
1108     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1109         enable_safe "${struct}_${member}"
1110 }
1111
1112 check_builtin(){
1113     log check_builtin "$@"
1114     name=$1
1115     headers=$2
1116     builtin=$3
1117     shift 3
1118     disable "$name"
1119     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1120 }
1121
1122 check_compile_assert(){
1123     log check_compile_assert "$@"
1124     name=$1
1125     headers=$2
1126     condition=$3
1127     shift 3
1128     disable "$name"
1129     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1130 }
1131
1132 require(){
1133     name="$1"
1134     header="$2"
1135     func="$3"
1136     shift 3
1137     check_lib $header $func "$@" || die "ERROR: $name not found"
1138 }
1139
1140 require2(){
1141     name="$1"
1142     headers="$2"
1143     func="$3"
1144     shift 3
1145     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1146 }
1147
1148 require_cpp(){
1149     name="$1"
1150     headers="$2"
1151     classes="$3"
1152     shift 3
1153     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1154 }
1155
1156 require_pkg_config(){
1157     pkg="$1"
1158     check_pkg_config "$@" || die "ERROR: $pkg not found"
1159     add_cflags    $(get_safe ${pkg}_cflags)
1160     add_extralibs $(get_safe ${pkg}_libs)
1161 }
1162
1163 require_libfreetype(){
1164     log require_libfreetype "$@"
1165     pkg="freetype2"
1166     check_cmd $pkg_config --exists --print-errors $pkg \
1167       || die "ERROR: $pkg not found"
1168     pkg_cflags=$($pkg_config --cflags $pkg)
1169     pkg_libs=$($pkg_config --libs $pkg)
1170     {
1171         echo "#include <ft2build.h>"
1172         echo "#include FT_FREETYPE_H"
1173         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1174         echo "int main(void) { return 0; }"
1175     } | check_ld "cc" $pkg_cflags $pkg_libs \
1176       && set_safe ${pkg}_cflags $pkg_cflags \
1177       && set_safe ${pkg}_libs   $pkg_libs \
1178       || die "ERROR: $pkg not found"
1179     add_cflags    $(get_safe ${pkg}_cflags)
1180     add_extralibs $(get_safe ${pkg}_libs)
1181 }
1182
1183 hostcc_e(){
1184     eval printf '%s\\n' $HOSTCC_E
1185 }
1186
1187 hostcc_o(){
1188     eval printf '%s\\n' $HOSTCC_O
1189 }
1190
1191 check_host_cc(){
1192     log check_host_cc "$@"
1193     cat > $TMPC
1194     log_file $TMPC
1195     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1196 }
1197
1198 check_host_cpp(){
1199     log check_host_cpp "$@"
1200     cat > $TMPC
1201     log_file $TMPC
1202     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1203 }
1204
1205 check_host_cppflags(){
1206     log check_host_cppflags "$@"
1207     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1208 int x;
1209 EOF
1210 }
1211
1212 check_host_cflags(){
1213     log check_host_cflags "$@"
1214     set -- $($host_cflags_filter "$@")
1215     check_host_cc "$@" <<EOF && append host_cflags "$@"
1216 int x;
1217 EOF
1218 }
1219
1220 check_host_cpp_condition(){
1221     log check_host_cpp_condition "$@"
1222     header=$1
1223     condition=$2
1224     shift 2
1225     check_host_cpp "$@" <<EOF
1226 #include <$header>
1227 #if !($condition)
1228 #error "unsatisfied condition: $condition"
1229 #endif
1230 EOF
1231 }
1232
1233 apply(){
1234     file=$1
1235     shift
1236     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1237 }
1238
1239 cp_if_changed(){
1240     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1241     mkdir -p "$(dirname $2)"
1242     $cp_f "$1" "$2"
1243 }
1244
1245 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1246 # system-dependent things.
1247
1248 COMPONENT_LIST="
1249     bsfs
1250     decoders
1251     demuxers
1252     encoders
1253     filters
1254     hwaccels
1255     indevs
1256     muxers
1257     outdevs
1258     parsers
1259     protocols
1260 "
1261
1262 EXAMPLE_LIST="
1263     avio_reading_example
1264     avcodec_example
1265     demuxing_decoding_example
1266     filter_audio_example
1267     filtering_audio_example
1268     filtering_video_example
1269     metadata_example
1270     muxing_example
1271     remuxing_example
1272     resampling_audio_example
1273     scaling_video_example
1274     transcode_aac_example
1275     transcoding_example
1276 "
1277
1278 EXTERNAL_LIBRARY_LIST="
1279     avisynth
1280     bzlib
1281     crystalhd
1282     decklink
1283     fontconfig
1284     frei0r
1285     gnutls
1286     iconv
1287     ladspa
1288     libaacplus
1289     libass
1290     libbluray
1291     libcaca
1292     libcdio
1293     libcelt
1294     libdc1394
1295     libfaac
1296     libfdk_aac
1297     libflite
1298     libfreetype
1299     libgme
1300     libgsm
1301     libiec61883
1302     libilbc
1303     libmodplug
1304     libmp3lame
1305     libnut
1306     libopencore_amrnb
1307     libopencore_amrwb
1308     libopencv
1309     libopenjpeg
1310     libopus
1311     libpulse
1312     libquvi
1313     librtmp
1314     libschroedinger
1315     libshine
1316     libsoxr
1317     libspeex
1318     libssh
1319     libstagefright_h264
1320     libtheora
1321     libtwolame
1322     libutvideo
1323     libv4l2
1324     libvidstab
1325     libvo_aacenc
1326     libvo_amrwbenc
1327     libvorbis
1328     libvpx
1329     libwavpack
1330     libwebp
1331     libx264
1332     libx265
1333     libxavs
1334     libxvid
1335     libzmq
1336     libzvbi
1337     openal
1338     opencl
1339     opengl
1340     openssl
1341     x11grab
1342     xlib
1343     zlib
1344 "
1345
1346 DOCUMENT_LIST="
1347     doc
1348     htmlpages
1349     manpages
1350     podpages
1351     txtpages
1352 "
1353
1354 FEATURE_LIST="
1355     ftrapv
1356     gray
1357     hardcoded_tables
1358     runtime_cpudetect
1359     safe_bitstream_reader
1360     shared
1361     small
1362     sram
1363     static
1364     swscale_alpha
1365 "
1366
1367 HWACCEL_LIST="
1368     dxva2
1369     vaapi
1370     vda
1371     vdpau
1372     xvmc
1373 "
1374
1375 LIBRARY_LIST="
1376     avcodec
1377     avdevice
1378     avfilter
1379     avformat
1380     avresample
1381     avutil
1382     postproc
1383     swresample
1384     swscale
1385 "
1386
1387 LICENSE_LIST="
1388     gpl
1389     nonfree
1390     version3
1391 "
1392
1393 PROGRAM_LIST="
1394     ffplay
1395     ffprobe
1396     ffserver
1397     ffmpeg
1398 "
1399
1400 SUBSYSTEM_LIST="
1401     dct
1402     dwt
1403     error_resilience
1404     fast_unaligned
1405     fft
1406     lsp
1407     lzo
1408     mdct
1409     network
1410     rdft
1411 "
1412
1413 CONFIG_LIST="
1414     $COMPONENT_LIST
1415     $DOCUMENT_LIST
1416     $EXAMPLE_LIST
1417     $EXTERNAL_LIBRARY_LIST
1418     $FEATURE_LIST
1419     $HWACCEL_LIST
1420     $LICENSE_LIST
1421     $LIBRARY_LIST
1422     $PROGRAM_LIST
1423     $SUBSYSTEM_LIST
1424     incompatible_libav_abi
1425     incompatible_fork_abi
1426     memalign_hack
1427     memory_poisoning
1428     neon_clobber_test
1429     pic
1430     pod2man
1431     raise_major
1432     thumb
1433     xmm_clobber_test
1434 "
1435
1436 THREADS_LIST="
1437     pthreads
1438     os2threads
1439     w32threads
1440 "
1441
1442 ATOMICS_LIST="
1443     atomics_gcc
1444     atomics_suncc
1445     atomics_win32
1446 "
1447
1448 ARCH_LIST="
1449     aarch64
1450     alpha
1451     arm
1452     avr32
1453     avr32_ap
1454     avr32_uc
1455     bfin
1456     ia64
1457     m68k
1458     mips
1459     mips64
1460     parisc
1461     ppc
1462     ppc64
1463     s390
1464     sh4
1465     sparc
1466     sparc64
1467     tilegx
1468     tilepro
1469     tomi
1470     x86
1471     x86_32
1472     x86_64
1473 "
1474
1475 ARCH_EXT_LIST_ARM="
1476     armv5te
1477     armv6
1478     armv6t2
1479     neon
1480     vfp
1481     vfpv3
1482 "
1483
1484 ARCH_EXT_LIST_MIPS="
1485     mipsfpu
1486     mips32r2
1487     mipsdspr1
1488     mipsdspr2
1489 "
1490
1491 ARCH_EXT_LIST_X86_SIMD="
1492     amd3dnow
1493     amd3dnowext
1494     avx
1495     avx2
1496     fma3
1497     fma4
1498     mmx
1499     mmxext
1500     sse
1501     sse2
1502     sse3
1503     sse4
1504     sse42
1505     ssse3
1506     xop
1507 "
1508
1509 ARCH_EXT_LIST_PPC="
1510     altivec
1511     dcbzl
1512     ldbrx
1513     ppc4xx
1514 "
1515
1516 ARCH_EXT_LIST_X86="
1517     $ARCH_EXT_LIST_X86_SIMD
1518     cpunop
1519     i686
1520 "
1521
1522 ARCH_EXT_LIST="
1523     $ARCH_EXT_LIST_ARM
1524     $ARCH_EXT_LIST_PPC
1525     $ARCH_EXT_LIST_X86
1526     $ARCH_EXT_LIST_MIPS
1527     loongson
1528 "
1529
1530 ARCH_FEATURES="
1531     aligned_stack
1532     fast_64bit
1533     fast_clz
1534     fast_cmov
1535     local_aligned_8
1536     local_aligned_16
1537 "
1538
1539 BUILTIN_LIST="
1540     atomic_cas_ptr
1541     machine_rw_barrier
1542     MemoryBarrier
1543     mm_empty
1544     rdtsc
1545     sarestart
1546     sync_val_compare_and_swap
1547 "
1548 HAVE_LIST_CMDLINE="
1549     inline_asm
1550     symver
1551     yasm
1552 "
1553
1554 HAVE_LIST_PUB="
1555     bigendian
1556     fast_unaligned
1557     incompatible_libav_abi
1558     incompatible_fork_abi
1559 "
1560
1561 HEADERS_LIST="
1562     alsa_asoundlib_h
1563     altivec_h
1564     arpa_inet_h
1565     asm_types_h
1566     cdio_paranoia_h
1567     cdio_paranoia_paranoia_h
1568     CL_cl_h
1569     dev_bktr_ioctl_bt848_h
1570     dev_bktr_ioctl_meteor_h
1571     dev_ic_bt8xx_h
1572     dev_video_bktr_ioctl_bt848_h
1573     dev_video_meteor_ioctl_meteor_h
1574     direct_h
1575     dlfcn_h
1576     dxva_h
1577     ES2_gl_h
1578     gsm_h
1579     io_h
1580     mach_mach_time_h
1581     machine_ioctl_bt848_h
1582     machine_ioctl_meteor_h
1583     malloc_h
1584     openjpeg_1_5_openjpeg_h
1585     OpenGL_gl3_h
1586     poll_h
1587     sndio_h
1588     soundcard_h
1589     sys_mman_h
1590     sys_param_h
1591     sys_resource_h
1592     sys_select_h
1593     sys_soundcard_h
1594     sys_time_h
1595     sys_un_h
1596     sys_videoio_h
1597     termios_h
1598     unistd_h
1599     windows_h
1600     winsock2_h
1601 "
1602
1603 MATH_FUNCS="
1604     atanf
1605     atan2f
1606     cbrt
1607     cbrtf
1608     cosf
1609     exp2
1610     exp2f
1611     expf
1612     isinf
1613     isnan
1614     ldexpf
1615     llrint
1616     llrintf
1617     log2
1618     log2f
1619     log10f
1620     lrint
1621     lrintf
1622     powf
1623     rint
1624     round
1625     roundf
1626     sinf
1627     trunc
1628     truncf
1629 "
1630
1631 SYSTEM_FUNCS="
1632     access
1633     aligned_malloc
1634     clock_gettime
1635     closesocket
1636     CommandLineToArgvW
1637     CryptGenRandom
1638     dlopen
1639     fcntl
1640     flt_lim
1641     fork
1642     getaddrinfo
1643     gethrtime
1644     getopt
1645     GetProcessAffinityMask
1646     GetProcessMemoryInfo
1647     GetProcessTimes
1648     getrusage
1649     getservbyport
1650     GetSystemTimeAsFileTime
1651     gettimeofday
1652     glob
1653     glXGetProcAddress
1654     inet_aton
1655     isatty
1656     jack_port_get_latency_range
1657     kbhit
1658     localtime_r
1659     lzo1x_999_compress
1660     mach_absolute_time
1661     MapViewOfFile
1662     memalign
1663     mkstemp
1664     mmap
1665     mprotect
1666     nanosleep
1667     PeekNamedPipe
1668     posix_memalign
1669     pthread_cancel
1670     sched_getaffinity
1671     SetConsoleTextAttribute
1672     setmode
1673     setrlimit
1674     Sleep
1675     strerror_r
1676     sysconf
1677     sysctl
1678     usleep
1679     VirtualAlloc
1680     wglGetProcAddress
1681 "
1682
1683 TOOLCHAIN_FEATURES="
1684     asm_mod_q
1685     attribute_may_alias
1686     attribute_packed
1687     ebp_available
1688     ebx_available
1689     gnu_as
1690     gnu_windres
1691     ibm_asm
1692     inline_asm_labels
1693     inline_asm_nonlocal_labels
1694     inline_asm_direct_symbol_refs
1695     pragma_deprecated
1696     rsync_contimeout
1697     symver_asm_label
1698     symver_gnu_asm
1699     vfp_args
1700     xform_asm
1701     xmm_clobbers
1702 "
1703
1704 TYPES_LIST="
1705     socklen_t
1706     struct_addrinfo
1707     struct_group_source_req
1708     struct_ip_mreq_source
1709     struct_ipv6_mreq
1710     struct_pollfd
1711     struct_rusage_ru_maxrss
1712     struct_sctp_event_subscribe
1713     struct_sockaddr_in6
1714     struct_sockaddr_sa_len
1715     struct_sockaddr_storage
1716     struct_stat_st_mtim_tv_nsec
1717     struct_v4l2_frmivalenum_discrete
1718 "
1719
1720 HAVE_LIST="
1721     $ARCH_EXT_LIST
1722     $(add_suffix _external $ARCH_EXT_LIST)
1723     $(add_suffix _inline   $ARCH_EXT_LIST)
1724     $ARCH_FEATURES
1725     $ATOMICS_LIST
1726     $BUILTIN_LIST
1727     $HAVE_LIST_CMDLINE
1728     $HAVE_LIST_PUB
1729     $HEADERS_LIST
1730     $MATH_FUNCS
1731     $SYSTEM_FUNCS
1732     $THREADS_LIST
1733     $TOOLCHAIN_FEATURES
1734     $TYPES_LIST
1735     atomics_native
1736     dos_paths
1737     libc_msvcrt
1738     libdc1394_1
1739     libdc1394_2
1740     makeinfo
1741     perl
1742     pod2man
1743     sdl
1744     texi2html
1745     threads
1746     vdpau_x11
1747     xlib
1748 "
1749
1750 # options emitted with CONFIG_ prefix but not available on the command line
1751 CONFIG_EXTRA="
1752     aandcttables
1753     ac3dsp
1754     audio_frame_queue
1755     cabac
1756     dsputil
1757     exif
1758     frame_thread_encoder
1759     gcrypt
1760     golomb
1761     gplv3
1762     h263dsp
1763     h264chroma
1764     h264dsp
1765     h264pred
1766     h264qpel
1767     hpeldsp
1768     huffman
1769     intrax8
1770     lgplv3
1771     llviddsp
1772     lpc
1773     mpegaudio
1774     mpegaudiodsp
1775     mpegvideo
1776     mpegvideoenc
1777     nettle
1778     rangecoder
1779     riffdec
1780     riffenc
1781     rtpdec
1782     rtpenc_chain
1783     sinewin
1784     tpeldsp
1785     videodsp
1786     vp3dsp
1787 "
1788
1789 CMDLINE_SELECT="
1790     $ARCH_EXT_LIST
1791     $CONFIG_LIST
1792     $HAVE_LIST_CMDLINE
1793     $THREADS_LIST
1794     asm
1795     cross_compile
1796     debug
1797     extra_warnings
1798     logging
1799     lto
1800     optimizations
1801     rpath
1802     stripping
1803 "
1804
1805 PATHS_LIST="
1806     bindir
1807     datadir
1808     docdir
1809     incdir
1810     libdir
1811     mandir
1812     prefix
1813     shlibdir
1814 "
1815
1816 CMDLINE_SET="
1817     $PATHS_LIST
1818     ar
1819     arch
1820     as
1821     assert_level
1822     build_suffix
1823     cc
1824     cpu
1825     cross_prefix
1826     cxx
1827     dep_cc
1828     extra_version
1829     host_cc
1830     host_cflags
1831     host_ld
1832     host_ldflags
1833     host_libs
1834     host_os
1835     install
1836     ld
1837     logfile
1838     malloc_prefix
1839     nm
1840     optflags
1841     pkg_config
1842     pkg_config_flags
1843     progs_suffix
1844     random_seed
1845     samples
1846     strip
1847     sysinclude
1848     sysroot
1849     target_exec
1850     target_os
1851     target_path
1852     target_samples
1853     tempprefix
1854     toolchain
1855     valgrind
1856     yasmexe
1857 "
1858
1859 CMDLINE_APPEND="
1860     extra_cflags
1861     extra_cxxflags
1862     host_cppflags
1863 "
1864
1865 # code dependency declarations
1866
1867 # architecture extensions
1868
1869 armv5te_deps="arm"
1870 armv6_deps="arm"
1871 armv6t2_deps="arm"
1872 neon_deps_any="aarch64 arm"
1873 vfp_deps_any="aarch64 arm"
1874 vfpv3_deps="vfp"
1875
1876 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1877
1878 mipsfpu_deps="mips"
1879 mips32r2_deps="mips"
1880 mipsdspr1_deps="mips"
1881 mipsdspr2_deps="mips"
1882
1883 altivec_deps="ppc"
1884 ppc4xx_deps="ppc"
1885
1886 cpunop_deps="i686"
1887 x86_64_select="i686"
1888 x86_64_suggest="fast_cmov"
1889
1890 amd3dnow_deps="mmx"
1891 amd3dnowext_deps="amd3dnow"
1892 i686_deps="x86"
1893 mmx_deps="x86"
1894 mmxext_deps="mmx"
1895 sse_deps="mmxext"
1896 sse2_deps="sse"
1897 sse3_deps="sse2"
1898 ssse3_deps="sse3"
1899 sse4_deps="ssse3"
1900 sse42_deps="sse4"
1901 avx_deps="sse42"
1902 xop_deps="avx"
1903 fma3_deps="avx"
1904 fma4_deps="avx"
1905 avx2_deps="avx"
1906
1907 mmx_external_deps="yasm"
1908 mmx_inline_deps="inline_asm"
1909 mmx_suggest="mmx_external mmx_inline"
1910
1911 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1912     eval dep=\$${ext}_deps
1913     eval ${ext}_external_deps='"${dep}_external"'
1914     eval ${ext}_inline_deps='"${dep}_inline"'
1915     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1916 done
1917
1918 aligned_stack_if_any="aarch64 ppc x86"
1919 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1920 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1921 fast_unaligned_if_any="aarch64 ppc x86"
1922
1923 need_memalign="altivec neon sse"
1924
1925 # system capabilities
1926 log2_deps="!libc_msvcrt"
1927
1928 symver_if_any="symver_asm_label symver_gnu_asm"
1929
1930 # threading support
1931 atomics_gcc_if="sync_val_compare_and_swap"
1932 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1933 atomics_win32_if="MemoryBarrier"
1934 atomics_native_if_any="$ATOMICS_LIST"
1935 w32threads_deps="atomics_native"
1936 threads_if_any="$THREADS_LIST"
1937
1938 # subsystems
1939 dct_select="rdft"
1940 error_resilience_select="dsputil"
1941 frame_thread_encoder_deps="encoders threads"
1942 mdct_select="fft"
1943 rdft_select="fft"
1944 mpegaudio_select="mpegaudiodsp"
1945 mpegaudiodsp_select="dct"
1946 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1947 mpegvideoenc_select="dsputil mpegvideo"
1948
1949 # decoders / encoders
1950 aac_decoder_select="mdct sinewin"
1951 aac_encoder_select="audio_frame_queue mdct sinewin"
1952 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1953 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1954 ac3_encoder_select="mdct ac3dsp dsputil"
1955 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1956 aic_decoder_select="dsputil golomb"
1957 alac_encoder_select="lpc"
1958 als_decoder_select="dsputil"
1959 amrnb_decoder_select="lsp"
1960 amrwb_decoder_select="lsp"
1961 amv_decoder_select="sp5x_decoder exif"
1962 amv_encoder_select="aandcttables"
1963 ape_decoder_select="dsputil"
1964 asv1_decoder_select="dsputil"
1965 asv1_encoder_select="dsputil"
1966 asv2_decoder_select="dsputil"
1967 asv2_encoder_select="dsputil"
1968 atrac1_decoder_select="mdct sinewin"
1969 atrac3_decoder_select="mdct"
1970 atrac3p_decoder_select="mdct sinewin"
1971 avrn_decoder_select="exif"
1972 bink_decoder_select="dsputil hpeldsp"
1973 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1974 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1975 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1976 cllc_decoder_select="dsputil"
1977 comfortnoise_encoder_select="lpc"
1978 cook_decoder_select="dsputil mdct sinewin"
1979 cscd_decoder_select="lzo"
1980 cscd_decoder_suggest="zlib"
1981 dca_decoder_select="mdct"
1982 dirac_decoder_select="dsputil dwt golomb videodsp"
1983 dnxhd_decoder_select="dsputil"
1984 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1985 dvvideo_decoder_select="dsputil"
1986 dvvideo_encoder_select="dsputil"
1987 dxa_decoder_select="zlib"
1988 eac3_decoder_select="ac3_decoder"
1989 eac3_encoder_select="ac3_encoder"
1990 eamad_decoder_select="aandcttables dsputil mpegvideo"
1991 eatgq_decoder_select="aandcttables"
1992 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
1993 exr_decoder_select="zlib"
1994 ffv1_decoder_select="golomb rangecoder"
1995 ffv1_encoder_select="rangecoder"
1996 ffvhuff_decoder_select="huffyuv_decoder"
1997 ffvhuff_encoder_select="huffyuv_encoder"
1998 fic_decoder_select="dsputil golomb"
1999 flac_decoder_select="golomb"
2000 flac_encoder_select="dsputil golomb lpc"
2001 flashsv_decoder_select="zlib"
2002 flashsv_encoder_select="zlib"
2003 flashsv2_encoder_select="zlib"
2004 flashsv2_decoder_select="zlib"
2005 flv_decoder_select="h263_decoder"
2006 flv_encoder_select="h263_encoder"
2007 fourxm_decoder_select="dsputil"
2008 fraps_decoder_select="dsputil huffman"
2009 g2m_decoder_select="dsputil zlib"
2010 g729_decoder_select="dsputil"
2011 h261_decoder_select="error_resilience mpegvideo"
2012 h261_encoder_select="aandcttables mpegvideoenc"
2013 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
2014 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2015 h263i_decoder_select="h263_decoder"
2016 h263p_encoder_select="h263_encoder"
2017 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2018 h264_decoder_suggest="error_resilience"
2019 hevc_decoder_select="cabac dsputil golomb videodsp"
2020 huffyuv_decoder_select="dsputil llviddsp"
2021 huffyuv_encoder_select="dsputil huffman llviddsp"
2022 iac_decoder_select="imc_decoder"
2023 imc_decoder_select="dsputil fft mdct sinewin"
2024 indeo3_decoder_select="hpeldsp"
2025 interplay_video_decoder_select="hpeldsp"
2026 jpegls_decoder_select="golomb mjpeg_decoder"
2027 jpegls_encoder_select="golomb"
2028 jv_decoder_select="dsputil"
2029 lagarith_decoder_select="dsputil"
2030 ljpeg_encoder_select="aandcttables mpegvideoenc"
2031 loco_decoder_select="golomb"
2032 mdec_decoder_select="dsputil error_resilience mpegvideo"
2033 metasound_decoder_select="lsp mdct sinewin"
2034 mimic_decoder_select="dsputil hpeldsp"
2035 mjpeg_decoder_select="dsputil hpeldsp exif"
2036 mjpeg_encoder_select="aandcttables mpegvideoenc"
2037 mjpegb_decoder_select="mjpeg_decoder"
2038 mlp_decoder_select="mlp_parser"
2039 motionpixels_decoder_select="dsputil"
2040 mp1_decoder_select="mpegaudio"
2041 mp1float_decoder_select="mpegaudio"
2042 mp2_decoder_select="mpegaudio"
2043 mp2float_decoder_select="mpegaudio"
2044 mp3_decoder_select="mpegaudio"
2045 mp3adu_decoder_select="mpegaudio"
2046 mp3adufloat_decoder_select="mpegaudio"
2047 mp3float_decoder_select="mpegaudio"
2048 mp3on4_decoder_select="mpegaudio"
2049 mp3on4float_decoder_select="mpegaudio"
2050 mpc7_decoder_select="dsputil mpegaudiodsp"
2051 mpc8_decoder_select="mpegaudiodsp"
2052 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2053 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2054 mpeg1video_decoder_select="error_resilience mpegvideo"
2055 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2056 mpeg2video_decoder_select="error_resilience mpegvideo"
2057 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2058 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2059 mpeg4_encoder_select="h263_encoder"
2060 msmpeg4v1_decoder_select="h263_decoder"
2061 msmpeg4v2_decoder_select="h263_decoder"
2062 msmpeg4v2_encoder_select="h263_encoder"
2063 msmpeg4v3_decoder_select="h263_decoder"
2064 msmpeg4v3_encoder_select="h263_encoder"
2065 mss2_decoder_select="error_resilience vc1_decoder"
2066 mxpeg_decoder_select="mjpeg_decoder"
2067 nellymoser_decoder_select="mdct sinewin"
2068 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2069 nuv_decoder_select="dsputil lzo"
2070 png_decoder_select="zlib"
2071 png_encoder_select="dsputil zlib"
2072 prores_decoder_select="dsputil"
2073 prores_encoder_select="dsputil"
2074 qcelp_decoder_select="lsp"
2075 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2076 ra_144_encoder_select="audio_frame_queue lpc"
2077 ralf_decoder_select="golomb"
2078 rtjpeg_decoder_select="dsputil"
2079 rv10_decoder_select="error_resilience h263_decoder h263dsp"
2080 rv10_encoder_select="h263_encoder"
2081 rv20_decoder_select="error_resilience h263_decoder h263dsp"
2082 rv20_encoder_select="h263_encoder"
2083 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2084 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2085 shorten_decoder_select="golomb"
2086 sipr_decoder_select="lsp"
2087 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
2088 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
2089 sonic_decoder_select="golomb rangecoder"
2090 sonic_encoder_select="golomb rangecoder"
2091 sonic_ls_encoder_select="golomb"
2092 sp5x_decoder_select="mjpeg_decoder"
2093 svq1_decoder_select="hpeldsp"
2094 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2095 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2096 svq3_decoder_suggest="zlib"
2097 tak_decoder_select="dsputil"
2098 theora_decoder_select="vp3_decoder"
2099 thp_decoder_select="mjpeg_decoder"
2100 tiff_decoder_suggest="zlib"
2101 tiff_encoder_suggest="zlib"
2102 truehd_decoder_select="mlp_parser"
2103 truemotion2_decoder_select="dsputil"
2104 truespeech_decoder_select="dsputil"
2105 tscc_decoder_select="zlib"
2106 twinvq_decoder_select="mdct lsp sinewin"
2107 utvideo_decoder_select="dsputil"
2108 utvideo_encoder_select="dsputil huffman"
2109 vble_decoder_select="dsputil"
2110 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
2111 vc1image_decoder_select="vc1_decoder"
2112 vorbis_decoder_select="mdct"
2113 vorbis_encoder_select="mdct"
2114 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2115 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2116 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2117 vp6a_decoder_select="vp6_decoder"
2118 vp6f_decoder_select="vp6_decoder"
2119 vp8_decoder_select="h264pred videodsp"
2120 vp9_decoder_select="videodsp"
2121 webp_decoder_select="vp8_decoder"
2122 wmapro_decoder_select="mdct sinewin"
2123 wmav1_decoder_select="mdct sinewin"
2124 wmav1_encoder_select="mdct sinewin"
2125 wmav2_decoder_select="mdct sinewin"
2126 wmav2_encoder_select="mdct sinewin"
2127 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2128 wmv1_decoder_select="h263_decoder"
2129 wmv1_encoder_select="h263_encoder"
2130 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2131 wmv2_encoder_select="h263_encoder"
2132 wmv3_decoder_select="vc1_decoder"
2133 wmv3image_decoder_select="wmv3_decoder"
2134 zerocodec_decoder_select="zlib"
2135 zlib_decoder_select="zlib"
2136 zlib_encoder_select="zlib"
2137 zmbv_decoder_select="zlib"
2138 zmbv_encoder_select="zlib"
2139
2140 # hardware accelerators
2141 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2142 dxva2_deps="dxva2api_h"
2143 vaapi_deps="va_va_h"
2144 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2145 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2146 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2147 xvmc_deps="X11_extensions_XvMClib_h"
2148
2149 h263_vaapi_hwaccel_deps="vaapi"
2150 h263_vaapi_hwaccel_select="h263_decoder"
2151 h263_vdpau_hwaccel_deps="vdpau"
2152 h263_vdpau_hwaccel_select="h263_decoder"
2153 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2154 h264_dxva2_hwaccel_deps="dxva2"
2155 h264_dxva2_hwaccel_select="h264_decoder"
2156 h264_vaapi_hwaccel_deps="vaapi"
2157 h264_vaapi_hwaccel_select="h264_decoder"
2158 h264_vda_decoder_deps="vda"
2159 h264_vda_decoder_select="h264_decoder"
2160 h264_vda_hwaccel_deps="vda"
2161 h264_vda_hwaccel_select="h264_decoder"
2162 h264_vdpau_decoder_deps="vdpau"
2163 h264_vdpau_decoder_select="h264_decoder"
2164 h264_vdpau_hwaccel_deps="vdpau"
2165 h264_vdpau_hwaccel_select="h264_decoder"
2166 mpeg_vdpau_decoder_deps="vdpau"
2167 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2168 mpeg_xvmc_hwaccel_deps="xvmc"
2169 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2170 mpeg1_vdpau_decoder_deps="vdpau"
2171 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2172 mpeg1_vdpau_hwaccel_deps="vdpau"
2173 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2174 mpeg1_xvmc_hwaccel_deps="xvmc"
2175 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2176 mpeg2_crystalhd_decoder_select="crystalhd"
2177 mpeg2_dxva2_hwaccel_deps="dxva2"
2178 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2179 mpeg2_vaapi_hwaccel_deps="vaapi"
2180 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2181 mpeg2_vdpau_hwaccel_deps="vdpau"
2182 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2183 mpeg2_xvmc_hwaccel_deps="xvmc"
2184 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2185 mpeg4_crystalhd_decoder_select="crystalhd"
2186 mpeg4_vaapi_hwaccel_deps="vaapi"
2187 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2188 mpeg4_vdpau_decoder_deps="vdpau"
2189 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2190 mpeg4_vdpau_hwaccel_deps="vdpau"
2191 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2192 msmpeg4_crystalhd_decoder_select="crystalhd"
2193 vc1_crystalhd_decoder_select="crystalhd"
2194 vc1_dxva2_hwaccel_deps="dxva2"
2195 vc1_dxva2_hwaccel_select="vc1_decoder"
2196 vc1_vaapi_hwaccel_deps="vaapi"
2197 vc1_vaapi_hwaccel_select="vc1_decoder"
2198 vc1_vdpau_decoder_deps="vdpau"
2199 vc1_vdpau_decoder_select="vc1_decoder"
2200 vc1_vdpau_hwaccel_deps="vdpau"
2201 vc1_vdpau_hwaccel_select="vc1_decoder"
2202 wmv3_crystalhd_decoder_select="crystalhd"
2203 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2204 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2205 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2206 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2207
2208 # parsers
2209 h264_parser_select="h264_decoder"
2210 hevc_parser_select="hevc_decoder"
2211 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
2212 mpegvideo_parser_select="error_resilience mpegvideo"
2213 vc1_parser_select="mpegvideo"
2214
2215 # external libraries
2216 libaacplus_encoder_deps="libaacplus"
2217 libcelt_decoder_deps="libcelt"
2218 libfaac_encoder_deps="libfaac"
2219 libfaac_encoder_select="audio_frame_queue"
2220 libfdk_aac_decoder_deps="libfdk_aac"
2221 libfdk_aac_encoder_deps="libfdk_aac"
2222 libfdk_aac_encoder_select="audio_frame_queue"
2223 libgme_demuxer_deps="libgme"
2224 libgsm_decoder_deps="libgsm"
2225 libgsm_encoder_deps="libgsm"
2226 libgsm_ms_decoder_deps="libgsm"
2227 libgsm_ms_encoder_deps="libgsm"
2228 libilbc_decoder_deps="libilbc"
2229 libilbc_encoder_deps="libilbc"
2230 libmodplug_demuxer_deps="libmodplug"
2231 libmp3lame_encoder_deps="libmp3lame"
2232 libmp3lame_encoder_select="audio_frame_queue"
2233 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2234 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2235 libopencore_amrnb_encoder_select="audio_frame_queue"
2236 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2237 libopenjpeg_decoder_deps="libopenjpeg"
2238 libopenjpeg_encoder_deps="libopenjpeg"
2239 libopus_decoder_deps="libopus"
2240 libopus_encoder_deps="libopus"
2241 libopus_encoder_select="audio_frame_queue"
2242 libquvi_demuxer_deps="libquvi"
2243 libschroedinger_decoder_deps="libschroedinger"
2244 libschroedinger_encoder_deps="libschroedinger"
2245 libshine_encoder_deps="libshine"
2246 libshine_encoder_select="audio_frame_queue"
2247 libspeex_decoder_deps="libspeex"
2248 libspeex_encoder_deps="libspeex"
2249 libspeex_encoder_select="audio_frame_queue"
2250 libstagefright_h264_decoder_deps="libstagefright_h264"
2251 libtheora_encoder_deps="libtheora"
2252 libtwolame_encoder_deps="libtwolame"
2253 libvo_aacenc_encoder_deps="libvo_aacenc"
2254 libvo_aacenc_encoder_select="audio_frame_queue"
2255 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2256 libvorbis_decoder_deps="libvorbis"
2257 libvorbis_encoder_deps="libvorbis"
2258 libvorbis_encoder_select="audio_frame_queue"
2259 libvpx_vp8_decoder_deps="libvpx"
2260 libvpx_vp8_encoder_deps="libvpx"
2261 libvpx_vp9_decoder_deps="libvpx"
2262 libvpx_vp9_encoder_deps="libvpx"
2263 libwavpack_encoder_deps="libwavpack"
2264 libwebp_encoder_deps="libwebp"
2265 libx264_encoder_deps="libx264"
2266 libx264rgb_encoder_deps="libx264"
2267 libx265_encoder_deps="libx265"
2268 libxavs_encoder_deps="libxavs"
2269 libxvid_encoder_deps="libxvid"
2270 libutvideo_decoder_deps="libutvideo"
2271 libutvideo_encoder_deps="libutvideo"
2272 libzvbi_teletext_decoder_deps="libzvbi"
2273
2274 # demuxers / muxers
2275 ac3_demuxer_select="ac3_parser"
2276 asf_demuxer_select="riffdec"
2277 asf_muxer_select="riffenc"
2278 asf_stream_muxer_select="asf_muxer"
2279 avi_demuxer_select="riffdec"
2280 avi_muxer_select="riffenc"
2281 avisynth_demuxer_deps="avisynth"
2282 avisynth_demuxer_select="riffdec"
2283 caf_demuxer_select="riffdec"
2284 dirac_demuxer_select="dirac_parser"
2285 dts_demuxer_select="dca_parser"
2286 dtshd_demuxer_select="dca_parser"
2287 dxa_demuxer_select="riffdec"
2288 eac3_demuxer_select="ac3_parser"
2289 f4v_muxer_select="mov_muxer"
2290 flac_demuxer_select="flac_parser"
2291 hds_muxer_select="flv_muxer"
2292 hls_muxer_select="mpegts_muxer"
2293 ipod_muxer_select="mov_muxer"
2294 ismv_muxer_select="mov_muxer"
2295 libnut_demuxer_deps="libnut"
2296 libnut_muxer_deps="libnut"
2297 matroska_audio_muxer_select="matroska_muxer"
2298 matroska_demuxer_select="riffdec"
2299 matroska_demuxer_suggest="bzlib lzo zlib"
2300 matroska_muxer_select="riffenc"
2301 mmf_muxer_select="riffenc"
2302 mov_demuxer_select="riffdec"
2303 mov_demuxer_suggest="zlib"
2304 mov_muxer_select="riffenc rtpenc_chain"
2305 mp3_demuxer_select="mpegaudio_parser"
2306 mp4_muxer_select="mov_muxer"
2307 mpegts_muxer_select="adts_muxer latm_muxer"
2308 mpegtsraw_demuxer_select="mpegts_demuxer"
2309 mxf_d10_muxer_select="mxf_muxer"
2310 nut_muxer_select="riffenc"
2311 nuv_demuxer_select="riffdec"
2312 ogg_demuxer_select="golomb"
2313 psp_muxer_select="mov_muxer"
2314 rtp_demuxer_select="sdp_demuxer"
2315 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2316 rtsp_demuxer_select="http_protocol rtpdec"
2317 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2318 sap_demuxer_select="sdp_demuxer"
2319 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2320 sdp_demuxer_select="rtpdec"
2321 smoothstreaming_muxer_select="ismv_muxer"
2322 spdif_muxer_select="aac_parser"
2323 tak_demuxer_select="tak_parser"
2324 tg2_muxer_select="mov_muxer"
2325 tgp_muxer_select="mov_muxer"
2326 vobsub_demuxer_select="mpegps_demuxer"
2327 w64_demuxer_select="wav_demuxer"
2328 w64_muxer_select="wav_muxer"
2329 wav_demuxer_select="riffdec"
2330 wav_muxer_select="riffenc"
2331 webm_muxer_select="riffenc"
2332 wtv_demuxer_select="riffdec"
2333 wtv_muxer_select="riffenc"
2334 xmv_demuxer_select="riffdec"
2335 xwma_demuxer_select="riffdec"
2336
2337 # indevs / outdevs
2338 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2339 alsa_outdev_deps="alsa_asoundlib_h"
2340 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2341 caca_outdev_deps="libcaca"
2342 decklink_outdev_deps="decklink pthreads"
2343 decklink_outdev_extralibs="-lstdc++"
2344 dshow_indev_deps="IBaseFilter"
2345 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2346 dv1394_indev_deps="dv1394"
2347 dv1394_indev_select="dv_demuxer"
2348 fbdev_indev_deps="linux_fb_h"
2349 fbdev_outdev_deps="linux_fb_h"
2350 iec61883_indev_deps="libiec61883"
2351 jack_indev_deps="jack_jack_h sem_timedwait"
2352 lavfi_indev_deps="avfilter"
2353 libcdio_indev_deps="libcdio"
2354 libdc1394_indev_deps="libdc1394"
2355 libv4l2_indev_deps="libv4l2"
2356 openal_indev_deps="openal"
2357 opengl_outdev_deps="opengl"
2358 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2359 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2360 pulse_indev_deps="libpulse"
2361 pulse_outdev_deps="libpulse"
2362 sdl_outdev_deps="sdl"
2363 sndio_indev_deps="sndio_h"
2364 sndio_outdev_deps="sndio_h"
2365 v4l_indev_deps="linux_videodev_h"
2366 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2367 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2368 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2369 vfwcap_indev_extralibs="-lavicap32"
2370 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2371 xv_outdev_extralibs="-lXv -lX11 -lXext"
2372 x11grab_indev_deps="x11grab"
2373
2374 # protocols
2375 bluray_protocol_deps="libbluray"
2376 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2377 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2378 ffrtmpcrypt_protocol_select="tcp_protocol"
2379 ffrtmphttp_protocol_deps="!librtmp_protocol"
2380 ffrtmphttp_protocol_select="http_protocol"
2381 ftp_protocol_select="tcp_protocol"
2382 gopher_protocol_select="network"
2383 http_protocol_select="tcp_protocol"
2384 httpproxy_protocol_select="tcp_protocol"
2385 https_protocol_select="tls_protocol"
2386 librtmp_protocol_deps="librtmp"
2387 librtmpe_protocol_deps="librtmp"
2388 librtmps_protocol_deps="librtmp"
2389 librtmpt_protocol_deps="librtmp"
2390 librtmpte_protocol_deps="librtmp"
2391 libssh_protocol_deps="libssh"
2392 mmsh_protocol_select="http_protocol"
2393 mmst_protocol_select="network"
2394 rtmp_protocol_deps="!librtmp_protocol"
2395 rtmp_protocol_select="tcp_protocol"
2396 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2397 rtmps_protocol_deps="!librtmp_protocol"
2398 rtmps_protocol_select="tls_protocol"
2399 rtmpt_protocol_select="ffrtmphttp_protocol"
2400 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2401 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2402 rtp_protocol_select="udp_protocol"
2403 sctp_protocol_deps="struct_sctp_event_subscribe"
2404 sctp_protocol_select="network"
2405 srtp_protocol_select="rtp_protocol"
2406 tcp_protocol_select="network"
2407 tls_protocol_deps_any="openssl gnutls"
2408 tls_protocol_select="tcp_protocol"
2409 udp_protocol_select="network"
2410 unix_protocol_deps="sys_un_h"
2411 unix_protocol_select="network"
2412
2413 # filters
2414 aconvert_filter_deps="swresample"
2415 amovie_filter_deps="avcodec avformat"
2416 aresample_filter_deps="swresample"
2417 ass_filter_deps="libass"
2418 asyncts_filter_deps="avresample"
2419 atempo_filter_deps="avcodec"
2420 atempo_filter_select="rdft"
2421 azmq_filter_deps="libzmq"
2422 blackframe_filter_deps="gpl"
2423 boxblur_filter_deps="gpl"
2424 colormatrix_filter_deps="gpl"
2425 cropdetect_filter_deps="gpl"
2426 dctdnoiz_filter_deps="avcodec"
2427 dctdnoiz_filter_select="dct"
2428 delogo_filter_deps="gpl"
2429 deshake_filter_deps="avcodec"
2430 deshake_filter_select="dsputil"
2431 drawtext_filter_deps="libfreetype"
2432 ebur128_filter_deps="gpl"
2433 flite_filter_deps="libflite"
2434 frei0r_filter_deps="frei0r dlopen"
2435 frei0r_filter_extralibs='$ldl'
2436 frei0r_src_filter_deps="frei0r dlopen"
2437 frei0r_src_filter_extralibs='$ldl'
2438 geq_filter_deps="gpl"
2439 histeq_filter_deps="gpl"
2440 hqdn3d_filter_deps="gpl"
2441 interlace_filter_deps="gpl"
2442 kerndeint_filter_deps="gpl"
2443 ladspa_filter_deps="ladspa dlopen"
2444 mcdeint_filter_deps="avcodec gpl"
2445 movie_filter_deps="avcodec avformat"
2446 mp_filter_deps="gpl avcodec swscale inline_asm"
2447 mpdecimate_filter_deps="gpl avcodec"
2448 mptestsrc_filter_deps="gpl"
2449 negate_filter_deps="lut_filter"
2450 perspective_filter_deps="gpl"
2451 ocv_filter_deps="libopencv"
2452 owdenoise_filter_deps="gpl"
2453 pan_filter_deps="swresample"
2454 phase_filter_deps="gpl"
2455 pp_filter_deps="gpl postproc"
2456 pullup_filter_deps="gpl"
2457 removelogo_filter_deps="avcodec avformat swscale"
2458 resample_filter_deps="avresample"
2459 sab_filter_deps="gpl swscale"
2460 scale_filter_deps="swscale"
2461 smartblur_filter_deps="gpl swscale"
2462 showspectrum_filter_deps="avcodec"
2463 showspectrum_filter_select="rdft"
2464 spp_filter_deps="gpl avcodec"
2465 spp_filter_select="fft"
2466 stereo3d_filter_deps="gpl"
2467 subtitles_filter_deps="avformat avcodec libass"
2468 super2xsai_filter_deps="gpl"
2469 tinterlace_filter_deps="gpl"
2470 vidstabdetect_filter_deps="libvidstab"
2471 vidstabtransform_filter_deps="libvidstab"
2472 pixfmts_super2xsai_test_deps="super2xsai_filter"
2473 tinterlace_merge_test_deps="tinterlace_filter"
2474 tinterlace_pad_test_deps="tinterlace_filter"
2475 zmq_filter_deps="libzmq"
2476
2477 # examples
2478 avio_reading="avformat avcodec avutil"
2479 avcodec_example_deps="avcodec avutil"
2480 demuxing_decoding_example_deps="avcodec avformat avutil"
2481 filter_audio_example_deps="avfilter avutil"
2482 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2483 filtering_video_example_deps="avfilter avcodec avformat avutil"
2484 metadata_example_deps="avformat avutil"
2485 muxing_example_deps="avcodec avformat avutil swscale"
2486 remuxing_example_deps="avcodec avformat avutil"
2487 resampling_audio_example_deps="avutil swresample"
2488 scaling_video_example_deps="avutil swscale"
2489 transcode_aac_example_deps="avcodec avformat swresample"
2490 transcoding_example_deps="avfilter avcodec avformat avutil"
2491
2492 # libraries
2493 avcodec_deps="avutil"
2494 avdevice_deps="avutil avcodec avformat"
2495 avfilter_deps="avutil"
2496 avformat_deps="avutil avcodec"
2497 avresample_deps="avutil"
2498 postproc_deps="avutil gpl"
2499 swscale_deps="avutil"
2500
2501 # programs
2502 ffmpeg_deps="avcodec avfilter avformat swresample"
2503 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2504                null_filter
2505                setpts_filter trim_filter"
2506 ffplay_deps="avcodec avformat swscale swresample sdl"
2507 ffplay_libs='$sdl_libs'
2508 ffplay_select="rdft crop_filter"
2509 ffprobe_deps="avcodec avformat"
2510 ffserver_deps="avformat fork sarestart"
2511 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2512
2513 # documentation
2514 podpages_deps="perl"
2515 manpages_deps="perl pod2man"
2516 htmlpages_deps="perl texi2html"
2517 txtpages_deps="perl makeinfo"
2518 doc_deps_any="manpages htmlpages podpages txtpages"
2519
2520 # default parameters
2521
2522 logfile="config.log"
2523
2524 # installation paths
2525 prefix_default="/usr/local"
2526 bindir_default='${prefix}/bin'
2527 datadir_default='${prefix}/share/ffmpeg'
2528 docdir_default='${prefix}/share/doc/ffmpeg'
2529 incdir_default='${prefix}/include'
2530 libdir_default='${prefix}/lib'
2531 mandir_default='${prefix}/share/man'
2532 shlibdir_default="$libdir_default"
2533
2534 # toolchain
2535 ar_default="ar"
2536 cc_default="gcc"
2537 cxx_default="g++"
2538 host_cc_default="gcc"
2539 cp_f="cp -f"
2540 install="install"
2541 ln_s="ln -s -f"
2542 nm_default="nm -g"
2543 objformat="elf"
2544 pkg_config_default=pkg-config
2545 ranlib="ranlib"
2546 strip_default="strip"
2547 yasmexe_default="yasm"
2548 windres_default="windres"
2549
2550 nogas=":"
2551
2552 # OS
2553 target_os_default=$(tolower $(uname -s))
2554 host_os=$target_os_default
2555
2556 # machine
2557 if test "$target_os_default" = aix; then
2558     arch_default=$(uname -p)
2559 else
2560     arch_default=$(uname -m)
2561 fi
2562 cpu="generic"
2563
2564 # configurable options
2565 enable $PROGRAM_LIST
2566 enable $DOCUMENT_LIST
2567 enable $EXAMPLE_LIST
2568 enable $(filter_out avresample $LIBRARY_LIST)
2569 enable stripping
2570
2571 enable asm
2572 enable debug
2573 enable doc
2574 enable optimizations
2575 enable runtime_cpudetect
2576 enable safe_bitstream_reader
2577 enable static
2578 enable swscale_alpha
2579
2580 # Enable hwaccels by default.
2581 enable dxva2 vaapi vda vdpau xvmc
2582 enable xlib
2583
2584 # build settings
2585 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2586 LIBPREF="lib"
2587 LIBSUF=".a"
2588 FULLNAME='$(NAME)$(BUILDSUF)'
2589 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2590 SLIBPREF="lib"
2591 SLIBSUF=".so"
2592 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2593 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2594 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2595 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2596 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2597 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2598
2599 asflags_filter=echo
2600 cflags_filter=echo
2601 ldflags_filter=echo
2602
2603 AS_C='-c'
2604 AS_O='-o $@'
2605 CC_C='-c'
2606 CC_E='-E -o $@'
2607 CC_O='-o $@'
2608 CXX_C='-c'
2609 CXX_O='-o $@'
2610 LD_O='-o $@'
2611 LD_LIB='-l%'
2612 LD_PATH='-L'
2613 HOSTCC_C='-c'
2614 HOSTCC_E='-E -o $@'
2615 HOSTCC_O='-o $@'
2616 HOSTLD_O='-o $@'
2617
2618 host_libs='-lm'
2619 host_cflags_filter=echo
2620 host_ldflags_filter=echo
2621
2622 target_path='$(CURDIR)'
2623
2624 # since the object filename is not given with the -MM flag, the compiler
2625 # is only able to print the basename, and we must add the path ourselves
2626 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2627 DEPFLAGS='-MM'
2628
2629 # find source path
2630 if test -f configure; then
2631     source_path=.
2632 else
2633     source_path=$(cd $(dirname "$0"); pwd)
2634     echo "$source_path" | grep -q '[[:blank:]]' &&
2635         die "Out of tree builds are impossible with whitespace in source path."
2636     test -e "$source_path/config.h" &&
2637         die "Out of tree builds are impossible with config.h in source dir."
2638 fi
2639
2640 for v in "$@"; do
2641     r=${v#*=}
2642     l=${v%"$r"}
2643     r=$(sh_quote "$r")
2644     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2645 done
2646
2647 find_things(){
2648     thing=$1
2649     pattern=$2
2650     file=$source_path/$3
2651     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2652 }
2653
2654 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2655 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2656 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2657 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2658 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2659 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2660 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2661 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2662 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2663 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2664 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2665
2666 ALL_COMPONENTS="
2667     $BSF_LIST
2668     $DECODER_LIST
2669     $DEMUXER_LIST
2670     $ENCODER_LIST
2671     $FILTER_LIST
2672     $HWACCEL_LIST
2673     $INDEV_LIST
2674     $MUXER_LIST
2675     $OUTDEV_LIST
2676     $PARSER_LIST
2677     $PROTOCOL_LIST
2678 "
2679
2680 for n in $COMPONENT_LIST; do
2681     v=$(toupper ${n%s})_LIST
2682     eval enable \$$v
2683     eval ${n}_if_any="\$$v"
2684 done
2685
2686 enable $ARCH_EXT_LIST
2687
2688 die_unknown(){
2689     echo "Unknown option \"$1\"."
2690     echo "See $0 --help for available options."
2691     exit 1
2692 }
2693
2694 print_3_columns() {
2695     cat | tr ' ' '\n' | sort | pr -r -3 -t
2696 }
2697
2698 show_list() {
2699     suffix=_$1
2700     shift
2701     echo $* | sed s/$suffix//g | print_3_columns
2702     exit 0
2703 }
2704
2705 rand_list(){
2706     IFS=', '
2707     set -- $*
2708     unset IFS
2709     for thing; do
2710         comp=${thing%:*}
2711         prob=${thing#$comp}
2712         prob=${prob#:}
2713         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2714         echo "prob ${prob:-0.5}"
2715         printf '%s\n' $comp
2716     done
2717 }
2718
2719 do_random(){
2720     action=$1
2721     shift
2722     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2723     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2724 }
2725
2726 for opt do
2727     optval="${opt#*=}"
2728     case "$opt" in
2729         --extra-ldflags=*)
2730             add_ldflags $optval
2731         ;;
2732         --extra-libs=*)
2733             add_extralibs $optval
2734         ;;
2735         --disable-devices)
2736             disable $INDEV_LIST $OUTDEV_LIST
2737         ;;
2738         --enable-debug=*)
2739             debuglevel="$optval"
2740         ;;
2741         --disable-programs)
2742             disable $PROGRAM_LIST
2743         ;;
2744         --disable-everything)
2745             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2746         ;;
2747         --disable-all)
2748             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2749             disable $LIBRARY_LIST $PROGRAM_LIST doc
2750         ;;
2751         --enable-random|--disable-random)
2752             action=${opt%%-random}
2753             do_random ${action#--} $COMPONENT_LIST
2754         ;;
2755         --enable-random=*|--disable-random=*)
2756             action=${opt%%-random=*}
2757             do_random ${action#--} $optval
2758         ;;
2759         --enable-*=*|--disable-*=*)
2760             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2761             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2762             eval list=\$$(toupper $thing)_LIST
2763             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2764             list=$(filter "$name" $list)
2765             [ "$list" = "" ] && warn "Option $opt did not match anything"
2766             $action $list
2767         ;;
2768         --enable-?*|--disable-?*)
2769             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2770             if is_in $option $COMPONENT_LIST; then
2771                 test $action = disable && action=unset
2772                 eval $action \$$(toupper ${option%s})_LIST
2773             elif is_in $option $CMDLINE_SELECT; then
2774                 $action $option
2775             else
2776                 die_unknown $opt
2777             fi
2778         ;;
2779         --list-*)
2780             NAME="${opt#--list-}"
2781             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2782             NAME=${NAME%s}
2783             eval show_list $NAME \$$(toupper $NAME)_LIST
2784         ;;
2785         --help|-h) show_help
2786         ;;
2787         --fatal-warnings) enable fatal_warnings
2788         ;;
2789         *)
2790             optname="${opt%%=*}"
2791             optname="${optname#--}"
2792             optname=$(echo "$optname" | sed 's/-/_/g')
2793             if is_in $optname $CMDLINE_SET; then
2794                 eval $optname='$optval'
2795             elif is_in $optname $CMDLINE_APPEND; then
2796                 append $optname "$optval"
2797             else
2798                 die_unknown $opt
2799             fi
2800         ;;
2801     esac
2802 done
2803
2804 disabled logging && logfile=/dev/null
2805
2806 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2807 set >> $logfile
2808
2809 test -n "$cross_prefix" && enable cross_compile
2810
2811 if enabled cross_compile; then
2812     test -n "$arch" && test -n "$target_os" ||
2813         die "Must specify target arch and OS when cross-compiling"
2814 fi
2815
2816 ar_default="${cross_prefix}${ar_default}"
2817 cc_default="${cross_prefix}${cc_default}"
2818 cxx_default="${cross_prefix}${cxx_default}"
2819 nm_default="${cross_prefix}${nm_default}"
2820 pkg_config_default="${cross_prefix}${pkg_config_default}"
2821 ranlib="${cross_prefix}${ranlib}"
2822 strip_default="${cross_prefix}${strip_default}"
2823 windres_default="${cross_prefix}${windres_default}"
2824
2825 sysinclude_default="${sysroot}/usr/include"
2826
2827 test -n "$valgrind" && toolchain="valgrind-memcheck"
2828
2829 case "$toolchain" in
2830     clang-asan)
2831         cc_default="clang"
2832         add_cflags  -fsanitize=address
2833         add_ldflags -fsanitize=address
2834     ;;
2835     clang-tsan)
2836         cc_default="clang"
2837         add_cflags  -fsanitize=thread -pie
2838         add_ldflags -fsanitize=thread -pie
2839     ;;
2840     clang-usan)
2841         cc_default="clang"
2842         add_cflags  -fsanitize=undefined
2843         add_ldflags -fsanitize=undefined
2844     ;;
2845     gcc-asan)
2846         cc_default="gcc"
2847         add_cflags  -fsanitize=address
2848         add_ldflags -fsanitize=address
2849     ;;
2850     gcc-tsan)
2851         cc_default="gcc"
2852         add_cflags  -fsanitize=thread -pie -fPIC
2853         add_ldflags -fsanitize=thread -pie -fPIC
2854     ;;
2855     gcc-usan)
2856         cc_default="gcc"
2857         add_cflags  -fsanitize=undefined
2858         add_ldflags -fsanitize=undefined
2859     ;;
2860     valgrind-massif)
2861         target_exec_default=${valgrind:-"valgrind"}
2862         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"
2863     ;;
2864     valgrind-memcheck)
2865         target_exec_default=${valgrind:-"valgrind"}
2866         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2867     ;;
2868     msvc)
2869         # Check whether the current MSVC version needs the C99 converter.
2870         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2871         # support enough of C99 to build ffmpeg. Default to the new
2872         # behaviour if the regexp was unable to match anything, since this
2873         # successfully parses the version number of existing supported
2874         # versions that require the converter (MSVC 2010 and 2012).
2875         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2876         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2877             cc_default="cl"
2878         else
2879             cc_default="c99wrap cl"
2880         fi
2881         ld_default="link"
2882         nm_default="dumpbin -symbols"
2883         ar_default="lib"
2884         target_os_default="win32"
2885         # Use a relative path for TMPDIR. This makes sure all the
2886         # ffconf temp files are written with a relative path, avoiding
2887         # issues with msys/win32 path conversion for MSVC parameters
2888         # such as -Fo<file> or -out:<file>.
2889         TMPDIR=.
2890     ;;
2891     icl)
2892         cc_default="icl"
2893         ld_default="xilink"
2894         nm_default="dumpbin -symbols"
2895         ar_default="xilib"
2896         target_os_default="win32"
2897         TMPDIR=.
2898     ;;
2899     gcov)
2900         add_cflags  -fprofile-arcs -ftest-coverage
2901         add_ldflags -fprofile-arcs -ftest-coverage
2902     ;;
2903     hardened)
2904         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2905         add_ldflags -Wl,-z,relro -Wl,-z,now
2906     ;;
2907     ?*)
2908         die "Unknown toolchain $toolchain"
2909     ;;
2910 esac
2911
2912 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2913 enabled cross_compile || host_cc_default=$cc
2914 set_default host_cc
2915
2916 if ! $pkg_config --version >/dev/null 2>&1; then
2917     warn "$pkg_config not found, library detection may fail."
2918     pkg_config=false
2919 fi
2920
2921 exesuf() {
2922     case $1 in
2923         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2924     esac
2925 }
2926
2927 EXESUF=$(exesuf $target_os)
2928 HOSTEXESUF=$(exesuf $host_os)
2929
2930 # set temporary file name
2931 : ${TMPDIR:=$TEMPDIR}
2932 : ${TMPDIR:=$TMP}
2933 : ${TMPDIR:=/tmp}
2934
2935 if [ -n "$tempprefix" ] ; then
2936     mktemp(){
2937         echo $tempprefix.${HOSTNAME}.${UID}
2938     }
2939 elif ! check_cmd mktemp -u XXXXXX; then
2940     # simple replacement for missing mktemp
2941     # NOT SAFE FOR GENERAL USE
2942     mktemp(){
2943         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2944     }
2945 fi
2946
2947 tmpfile(){
2948     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2949         (set -C; exec > $tmp) 2>/dev/null ||
2950         die "Unable to create temporary file in $TMPDIR."
2951     append TMPFILES $tmp
2952     eval $1=$tmp
2953 }
2954
2955 trap 'rm -f -- $TMPFILES' EXIT
2956
2957 tmpfile TMPASM .asm
2958 tmpfile TMPC   .c
2959 tmpfile TMPCPP .cpp
2960 tmpfile TMPE   $EXESUF
2961 tmpfile TMPH   .h
2962 tmpfile TMPO   .o
2963 tmpfile TMPS   .S
2964 tmpfile TMPSH  .sh
2965 tmpfile TMPV   .ver
2966
2967 unset -f mktemp
2968
2969 chmod +x $TMPE
2970
2971 # make sure we can execute files in $TMPDIR
2972 cat > $TMPSH 2>> $logfile <<EOF
2973 #! /bin/sh
2974 EOF
2975 chmod +x $TMPSH >> $logfile 2>&1
2976 if ! $TMPSH >> $logfile 2>&1; then
2977     cat <<EOF
2978 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2979 variable to another directory and make sure that it is not mounted noexec.
2980 EOF
2981     die "Sanity test failed."
2982 fi
2983
2984 ccc_flags(){
2985     for flag; do
2986         case $flag in
2987             -std=c99)           echo -c99                       ;;
2988             -mcpu=*)            echo -arch ${flag#*=}           ;;
2989             -mieee)             echo -ieee                      ;;
2990             -O*|-fast)          echo $flag                      ;;
2991             -fno-math-errno)    echo -assume nomath_errno       ;;
2992             -g)                 echo -g3                        ;;
2993             -Wall)              echo -msg_enable level2         ;;
2994             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2995             -Wl,*)              echo $flag                      ;;
2996             -f*|-W*)                                            ;;
2997             *)                  echo $flag                      ;;
2998         esac
2999    done
3000 }
3001
3002 cparser_flags(){
3003     for flag; do
3004         case $flag in
3005             -Wno-switch)             echo -Wno-switch-enum ;;
3006             -Wno-format-zero-length) ;;
3007             -Wdisabled-optimization) ;;
3008             -Wno-pointer-sign)       echo -Wno-other ;;
3009             *)                       echo $flag ;;
3010         esac
3011     done
3012 }
3013
3014 msvc_common_flags(){
3015     for flag; do
3016         case $flag in
3017             # In addition to specifying certain flags under the compiler
3018             # specific filters, they must be specified here as well or else the
3019             # generic catch all at the bottom will print the original flag.
3020             -Wall)                ;;
3021             -std=c99)             ;;
3022             # Common flags
3023             -fomit-frame-pointer) ;;
3024             -g)                   echo -Z7 ;;
3025             -fno-math-errno)      ;;
3026             -fno-common)          ;;
3027             -fno-signed-zeros)    ;;
3028             -fPIC)                ;;
3029             -mthumb)              ;;
3030             -march=*)             ;;
3031             -lz)                  echo zlib.lib ;;
3032             -lavifil32)           echo vfw32.lib ;;
3033             -lavicap32)           echo vfw32.lib user32.lib ;;
3034             -l*)                  echo ${flag#-l}.lib ;;
3035             *)                    echo $flag ;;
3036         esac
3037     done
3038 }
3039
3040 msvc_flags(){
3041     msvc_common_flags "$@"
3042     for flag; do
3043         case $flag in
3044             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3045                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3046                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3047                                        -wd4554 \
3048                                        -wd4273 ;;
3049         esac
3050     done
3051 }
3052
3053 icl_flags(){
3054     msvc_common_flags "$@"
3055     for flag; do
3056         case $flag in
3057             # Despite what Intel's documentation says -Wall, which is supported
3058             # on Windows, does enable remarks so disable them here.
3059             -Wall)                echo $flag -Qdiag-disable:remark ;;
3060             -std=c99)             echo -Qstd=c99 ;;
3061         esac
3062     done
3063 }
3064
3065 pgi_flags(){
3066     for flag; do
3067         case $flag in
3068             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3069             -fomit-frame-pointer) echo -Mnoframe ;;
3070             -g)                   echo -gopt ;;
3071             *)                    echo $flag ;;
3072         esac
3073     done
3074 }
3075
3076 suncc_flags(){
3077     for flag; do
3078         case $flag in
3079             -march=*|-mcpu=*)
3080                 case "${flag#*=}" in
3081                     native)                   echo -xtarget=native       ;;
3082                     v9|niagara)               echo -xarch=sparc          ;;
3083                     ultrasparc)               echo -xarch=sparcvis       ;;
3084                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3085                     i586|pentium)             echo -xchip=pentium        ;;
3086                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3087                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3088                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3089                     pentium4*)          echo -xtarget=pentium4           ;;
3090                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3091                     *-sse3)             echo -xarch=sse3                 ;;
3092                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3093                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3094                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3095                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3096                     bdver*)                    echo -xarch=avx           ;;
3097                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3098                     k8|opteron|athlon64|athlon-fx)
3099                                                echo -xarch=sse2a         ;;
3100                     athlon*)                   echo -xarch=pentium_proa  ;;
3101                 esac
3102                 ;;
3103             -std=c99)             echo -xc99              ;;
3104             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3105             -fPIC)                echo -KPIC -xcode=pic32 ;;
3106             -W*,*)                echo $flag              ;;
3107             -f*-*|-W*|-mimpure-text)                      ;;
3108             -shared)              echo -G                 ;;
3109             *)                    echo $flag              ;;
3110         esac
3111     done
3112 }
3113
3114 tms470_flags(){
3115     for flag; do
3116         case $flag in
3117             -march=*|-mcpu=*)
3118                 case "${flag#*=}" in
3119                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3120                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3121                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3122                     armv6*|arm11*)          echo -mv=6   ;;
3123                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3124                                             echo -mv=5e  ;;
3125                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3126                 esac
3127                 ;;
3128             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3129             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3130             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3131             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3132             -msoft-float)   echo --float_support=vfplib       ;;
3133             -O[0-3]|-mf=*)  echo $flag                        ;;
3134             -g)             echo -g -mn                       ;;
3135             -pds=*)         echo $flag                        ;;
3136             -D*|-I*)        echo $flag                        ;;
3137             --gcc|--abi=*)  echo $flag                        ;;
3138             -me)            echo $flag                        ;;
3139         esac
3140     done
3141 }
3142
3143 probe_cc(){
3144     pfx=$1
3145     _cc=$2
3146
3147     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3148     unset _ld_o _ldflags _ld_lib _ld_path
3149     unset _depflags _DEPCMD _DEPFLAGS
3150     _flags_filter=echo
3151
3152     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3153         true # no-op to avoid reading stdin in following checks
3154     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3155         _type=llvm_gcc
3156         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3157         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3158         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3159         _cflags_speed='-O3'
3160         _cflags_size='-Os'
3161     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3162         _type=gcc
3163         gcc_version=$($_cc --version | head -n1)
3164         gcc_basever=$($_cc -dumpversion)
3165         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3166         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3167         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3168         if ! $_cc -dumpversion | grep -q '^2\.'; then
3169             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3170         fi
3171         _cflags_speed='-O3'
3172         _cflags_size='-Os'
3173     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3174         _type=icc
3175         _ident=$($_cc --version | head -n1)
3176         _depflags='-MMD'
3177         _cflags_speed='-O3'
3178         _cflags_size='-Os'
3179         _cflags_noopt='-O1'
3180     elif $_cc -v 2>&1 | grep -q xlc; then
3181         _type=xlc
3182         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3183         _cflags_speed='-O5'
3184         _cflags_size='-O5 -qcompact'
3185     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3186         _type=ccc
3187         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3188         _DEPFLAGS='-M'
3189         _cflags_speed='-fast'
3190         _cflags_size='-O1'
3191         _flags_filter=ccc_flags
3192     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM C/C[+][+] Compiler|Component: ARM Compiler "; then
3193         test -d "$sysroot" || die "No valid sysroot specified."
3194         _type=armcc
3195         _ident=$($_cc --vsn | head -n1)
3196         armcc_conf="$PWD/armcc.conf"
3197         $_cc --arm_linux_configure                 \
3198              --arm_linux_config_file="$armcc_conf" \
3199              --configure_sysroot="$sysroot"        \
3200              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3201              die "Error creating armcc configuration file."
3202         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3203         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3204         as_default="${cross_prefix}gcc"
3205         _depflags='-MMD'
3206         _cflags_speed='-O3'
3207         _cflags_size='-Os'
3208     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3209         _type=tms470
3210         _ident=$($_cc -version | head -n1 | tr -s ' ')
3211         _flags='--gcc --abi=eabi -me'
3212         _cc_e='-ppl -fe=$@'
3213         _cc_o='-fe=$@'
3214         _depflags='-ppa -ppd=$(@:.o=.d)'
3215         _cflags_speed='-O3 -mf=5'
3216         _cflags_size='-O3 -mf=2'
3217         _flags_filter=tms470_flags
3218     elif $_cc -v 2>&1 | grep -q clang; then
3219         _type=clang
3220         _ident=$($_cc --version | head -n1)
3221         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3222         _cflags_speed='-O3'
3223         _cflags_size='-Os'
3224     elif $_cc -V 2>&1 | grep -q Sun; then
3225         _type=suncc
3226         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3227         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3228         _DEPFLAGS='-xM1 -xc99'
3229         _ldflags='-std=c99'
3230         _cflags_speed='-O5'
3231         _cflags_size='-O5 -xspace'
3232         _flags_filter=suncc_flags
3233     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3234         _type=pathscale
3235         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3236         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3237         _cflags_speed='-O2'
3238         _cflags_size='-Os'
3239         _flags_filter='filter_out -Wdisabled-optimization'
3240     elif $_cc -v 2>&1 | grep -q Open64; then
3241         _type=open64
3242         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3243         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3244         _cflags_speed='-O2'
3245         _cflags_size='-Os'
3246         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3247     elif $_cc -V 2>&1 | grep -q Portland; then
3248         _type=pgi
3249         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3250         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3251         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3252         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3253         _cflags_noopt="-O"
3254         _flags_filter=pgi_flags
3255     elif $_cc 2>&1 | grep -q Microsoft; then
3256         _type=msvc
3257         _ident=$($cc 2>&1 | head -n1)
3258         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3259         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3260         _cflags_speed="-O2"
3261         _cflags_size="-O1"
3262         if $_cc 2>&1 | grep -q Linker; then
3263             _ld_o='-out:$@'
3264         else
3265             _ld_o='-Fe$@'
3266         fi
3267         _cc_o='-Fo$@'
3268         _cc_e='-P -Fi$@'
3269         _flags_filter=msvc_flags
3270         _ld_lib='lib%.a'
3271         _ld_path='-libpath:'
3272         _flags='-nologo'
3273         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3274         if [ $pfx = hostcc ]; then
3275             append _cflags -Dsnprintf=_snprintf
3276         fi
3277         disable stripping
3278     elif $_cc 2>&1 | grep -q Intel; then
3279         _type=icl
3280         _ident=$($cc 2>&1 | head -n1)
3281         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3282         # Not only is O3 broken on 13.x+ but it is slower on all previous
3283         # versions (tested) as well.
3284         _cflags_speed="-O2"
3285         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3286         if $_cc 2>&1 | grep -q Linker; then
3287             _ld_o='-out:$@'
3288         else
3289             _ld_o='-Fe$@'
3290         fi
3291         _cc_o='-Fo$@'
3292         _cc_e='-P'
3293         _flags_filter=icl_flags
3294         _ld_lib='lib%.a'
3295         _ld_path='-libpath:'
3296         # -Qdiag-error to make icl error when seeing certain unknown arguments
3297         _flags='-nologo -Qdiag-error:4044,10157'
3298         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3299         # with MSVC which enables it by default.
3300         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3301         if [ $pfx = hostcc ]; then
3302             append _cflags -Dsnprintf=_snprintf
3303         fi
3304     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3305         _type=cparser
3306         _ident=$($_cc --version | head -n1)
3307         _depflags='-MMD'
3308         _cflags_speed='-O4'
3309         _cflags_size='-O2'
3310         _flags_filter=cparser_flags
3311     fi
3312
3313     eval ${pfx}_type=\$_type
3314     eval ${pfx}_ident=\$_ident
3315 }
3316
3317 set_ccvars(){
3318     eval ${1}_C=\${_cc_c-\${${1}_C}}
3319     eval ${1}_E=\${_cc_e-\${${1}_E}}
3320     eval ${1}_O=\${_cc_o-\${${1}_O}}
3321
3322     if [ -n "$_depflags" ]; then
3323         eval ${1}_DEPFLAGS=\$_depflags
3324     else
3325         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3326         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3327         eval DEP${1}FLAGS=\$_flags
3328     fi
3329 }
3330
3331 probe_cc cc "$cc"
3332 cflags_filter=$_flags_filter
3333 cflags_speed=$_cflags_speed
3334 cflags_size=$_cflags_size
3335 cflags_noopt=$_cflags_noopt
3336 add_cflags $_flags $_cflags
3337 cc_ldflags=$_ldflags
3338 set_ccvars CC
3339
3340 probe_cc hostcc "$host_cc"
3341 host_cflags_filter=$_flags_filter
3342 add_host_cflags  $_flags $_cflags
3343 set_ccvars HOSTCC
3344
3345 test -n "$cc_type" && enable $cc_type ||
3346     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3347
3348 : ${as_default:=$cc}
3349 : ${dep_cc_default:=$cc}
3350 : ${ld_default:=$cc}
3351 : ${host_ld_default:=$host_cc}
3352 set_default ar as dep_cc ld host_ld windres
3353
3354 probe_cc as "$as"
3355 asflags_filter=$_flags_filter
3356 add_asflags $_flags $_cflags
3357 set_ccvars AS
3358
3359 probe_cc ld "$ld"
3360 ldflags_filter=$_flags_filter
3361 add_ldflags $_flags $_ldflags
3362 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3363 LD_O=${_ld_o-$LD_O}
3364 LD_LIB=${_ld_lib-$LD_LIB}
3365 LD_PATH=${_ld_path-$LD_PATH}
3366
3367 probe_cc hostld "$host_ld"
3368 host_ldflags_filter=$_flags_filter
3369 add_host_ldflags $_flags $_ldflags
3370 HOSTLD_O=${_ld_o-$HOSTLD_O}
3371
3372 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3373     probe_cc depcc "$dep_cc"
3374     CCDEP=${_DEPCMD:-$DEPCMD}
3375     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3376     DEPCCFLAGS=$_flags
3377 fi
3378
3379 if $ar 2>&1 | grep -q Microsoft; then
3380     arflags="-nologo"
3381     ar_o='-out:$@'
3382 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3383     arflags="rq"
3384     ar_o='$@'
3385 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3386     arflags='-Xany -r -c'
3387     ar_o='$@'
3388 else
3389     arflags="rc"
3390     ar_o='$@'
3391 fi
3392
3393 add_cflags $extra_cflags
3394 add_cxxflags $extra_cxxflags
3395 add_asflags $extra_cflags
3396
3397 if test -n "$sysroot"; then
3398     case "$cc_type" in
3399         gcc|llvm_gcc|clang)
3400             add_cppflags --sysroot="$sysroot"
3401             add_ldflags --sysroot="$sysroot"
3402 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3403             add_cppflags -isysroot "$sysroot"
3404             add_ldflags -isysroot "$sysroot"
3405         ;;
3406         tms470)
3407             add_cppflags -I"$sysinclude"
3408             add_ldflags  --sysroot="$sysroot"
3409         ;;
3410     esac
3411 fi
3412
3413 if test "$cpu" = host; then
3414     enabled cross_compile &&
3415         die "--cpu=host makes no sense when cross-compiling."
3416
3417     case "$cc_type" in
3418         gcc|llvm_gcc)
3419             check_native(){
3420                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3421                 sed -n "/cc1.*$1=/{
3422                             s/.*$1=\\([^ ]*\\).*/\\1/
3423                             p
3424                             q
3425                         }" $TMPE
3426             }
3427             cpu=$(check_native -march || check_native -mcpu)
3428         ;;
3429     esac
3430
3431     test "${cpu:-host}" = host &&
3432         die "--cpu=host not supported with compiler $cc"
3433 fi
3434
3435 # Deal with common $arch aliases
3436 case "$arch" in
3437     aarch64|arm64)
3438         arch="aarch64"
3439     ;;
3440     arm*|iPad*|iPhone*)
3441         arch="arm"
3442     ;;
3443     mips*|IP*)
3444         arch="mips"
3445     ;;
3446     parisc*|hppa*)
3447         arch="parisc"
3448     ;;
3449     "Power Macintosh"|ppc*|powerpc*)
3450         arch="ppc"
3451     ;;
3452     s390|s390x)
3453         arch="s390"
3454     ;;
3455     sh4|sh)
3456         arch="sh4"
3457     ;;
3458     sun4u|sparc*)
3459         arch="sparc"
3460     ;;
3461     tilegx|tile-gx)
3462         arch="tilegx"
3463     ;;
3464     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3465         arch="x86"
3466     ;;
3467 esac
3468
3469 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3470 enable $arch
3471
3472 # Add processor-specific flags
3473 if enabled aarch64; then
3474
3475     case $cpu in
3476         armv*)
3477             cpuflags="-march=$cpu"
3478         ;;
3479         *)
3480             cpuflags="-mcpu=$cpu"
3481         ;;
3482     esac
3483
3484 elif enabled alpha; then
3485
3486     cpuflags="-mcpu=$cpu"
3487
3488 elif enabled arm; then
3489
3490     check_arm_arch() {
3491         check_cpp_condition stddef.h \
3492             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3493             $cpuflags
3494     }
3495
3496     probe_arm_arch() {
3497         if   check_arm_arch 4;        then echo armv4;
3498         elif check_arm_arch 4T;       then echo armv4t;
3499         elif check_arm_arch 5;        then echo armv5;
3500         elif check_arm_arch 5E;       then echo armv5e;
3501         elif check_arm_arch 5T;       then echo armv5t;
3502         elif check_arm_arch 5TE;      then echo armv5te;
3503         elif check_arm_arch 5TEJ;     then echo armv5te;
3504         elif check_arm_arch 6;        then echo armv6;
3505         elif check_arm_arch 6J;       then echo armv6j;
3506         elif check_arm_arch 6K;       then echo armv6k;
3507         elif check_arm_arch 6Z;       then echo armv6z;
3508         elif check_arm_arch 6ZK;      then echo armv6zk;
3509         elif check_arm_arch 6T2;      then echo armv6t2;
3510         elif check_arm_arch 7;        then echo armv7;
3511         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3512         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3513         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3514         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3515         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3516         fi
3517     }
3518
3519     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3520
3521     case $cpu in
3522         armv*)
3523             cpuflags="-march=$cpu"
3524             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3525         ;;
3526         *)
3527             cpuflags="-mcpu=$cpu"
3528             case $cpu in
3529                 cortex-a*)                               subarch=armv7a  ;;
3530                 cortex-r*)                               subarch=armv7r  ;;
3531                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3532                 arm11*)                                  subarch=armv6   ;;
3533                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3534                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3535                 *)                             subarch=$(probe_arm_arch) ;;
3536             esac
3537         ;;
3538     esac
3539
3540     case "$subarch" in
3541         armv5t*)    enable fast_clz                ;;
3542         armv[6-8]*) enable fast_clz fast_unaligned ;;
3543     esac
3544
3545 elif enabled avr32; then
3546
3547     case $cpu in
3548         ap7[02]0[0-2])
3549             subarch="avr32_ap"
3550             cpuflags="-mpart=$cpu"
3551         ;;
3552         ap)
3553             subarch="avr32_ap"
3554             cpuflags="-march=$cpu"
3555         ;;
3556         uc3[ab]*)
3557             subarch="avr32_uc"
3558             cpuflags="-mcpu=$cpu"
3559         ;;
3560         uc)
3561             subarch="avr32_uc"
3562             cpuflags="-march=$cpu"
3563         ;;
3564     esac
3565
3566 elif enabled bfin; then
3567
3568     cpuflags="-mcpu=$cpu"
3569
3570 elif enabled mips; then
3571
3572     cpuflags="-march=$cpu"
3573
3574     case $cpu in
3575         24kc)
3576             disable mipsfpu
3577             disable mipsdspr1
3578             disable mipsdspr2
3579         ;;
3580         24kf*)
3581             disable mipsdspr1
3582             disable mipsdspr2
3583         ;;
3584         24kec|34kc|1004kc)
3585             disable mipsfpu
3586             disable mipsdspr2
3587         ;;
3588         24kef*|34kf*|1004kf*)
3589             disable mipsdspr2
3590         ;;
3591         74kc)
3592             disable mipsfpu
3593         ;;
3594     esac
3595
3596 elif enabled ppc; then
3597
3598     disable ldbrx
3599
3600     case $(tolower $cpu) in
3601         601|ppc601|powerpc601)
3602             cpuflags="-mcpu=601"
3603             disable altivec
3604         ;;
3605         603*|ppc603*|powerpc603*)
3606             cpuflags="-mcpu=603"
3607             disable altivec
3608         ;;
3609         604*|ppc604*|powerpc604*)
3610             cpuflags="-mcpu=604"
3611             disable altivec
3612         ;;
3613         g3|75*|ppc75*|powerpc75*)
3614             cpuflags="-mcpu=750"
3615             disable altivec
3616         ;;
3617         g4|745*|ppc745*|powerpc745*)
3618             cpuflags="-mcpu=7450"
3619         ;;
3620         74*|ppc74*|powerpc74*)
3621             cpuflags="-mcpu=7400"
3622         ;;
3623         g5|970|ppc970|powerpc970)
3624             cpuflags="-mcpu=970"
3625         ;;
3626         power[3-7]*)
3627             cpuflags="-mcpu=$cpu"
3628         ;;
3629         cell)
3630             cpuflags="-mcpu=cell"
3631             enable ldbrx
3632         ;;
3633         e500mc)
3634             cpuflags="-mcpu=e500mc"
3635             disable altivec
3636         ;;
3637         e500v2)
3638             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3639             disable altivec
3640             disable dcbzl
3641         ;;
3642         e500)
3643             cpuflags="-mcpu=8540 -mhard-float"
3644             disable altivec
3645             disable dcbzl
3646         ;;
3647     esac
3648
3649 elif enabled sparc; then
3650
3651     case $cpu in
3652         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3653             cpuflags="-mcpu=$cpu"
3654         ;;
3655         ultrasparc*|niagara[234])
3656             cpuflags="-mcpu=$cpu"
3657         ;;
3658     esac
3659
3660 elif enabled x86; then
3661
3662     case $cpu in
3663         i[345]86|pentium)
3664             cpuflags="-march=$cpu"
3665             disable mmx
3666         ;;
3667         # targets that do NOT support nopl and conditional mov (cmov)
3668         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3669             cpuflags="-march=$cpu"
3670             disable i686
3671         ;;
3672         # targets that do support nopl and conditional mov (cmov)
3673         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3674             cpuflags="-march=$cpu"
3675             enable i686
3676             enable fast_cmov
3677         ;;
3678         # targets that do support conditional mov but on which it's slow
3679         pentium4|pentium4m|prescott|nocona)
3680             cpuflags="-march=$cpu"
3681             enable i686
3682             disable fast_cmov
3683         ;;
3684     esac
3685
3686 fi
3687
3688 if [ "$cpu" != generic ]; then
3689     add_cflags  $cpuflags
3690     add_asflags $cpuflags
3691 fi
3692
3693 # compiler sanity check
3694 check_exec <<EOF
3695 int main(void){ return 0; }
3696 EOF
3697 if test "$?" != 0; then
3698     echo "$cc is unable to create an executable file."
3699     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3700         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3701         echo "Only do this if you know what cross compiling means."
3702     fi
3703     die "C compiler test failed."
3704 fi
3705
3706 add_cppflags -D_ISOC99_SOURCE
3707 add_cxxflags -D__STDC_CONSTANT_MACROS
3708 check_cflags -std=c99
3709 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3710 #include <stdlib.h>
3711 EOF
3712 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3713 #include <stdlib.h>
3714 EOF
3715
3716 add_host_cppflags -D_ISOC99_SOURCE
3717 check_host_cflags -std=c99
3718 check_host_cflags -Wall
3719 check_host_cflags -O3
3720
3721 check_64bit(){
3722     arch32=$1
3723     arch64=$2
3724     expr=$3
3725     check_code cc "" "int test[2*($expr) - 1]" &&
3726         subarch=$arch64 || subarch=$arch32
3727 }
3728
3729 case "$arch" in
3730     aarch64|alpha|ia64)
3731         spic=$shared
3732     ;;
3733     mips)
3734         check_64bit mips mips64 '_MIPS_SIM > 1'
3735         spic=$shared
3736     ;;
3737     parisc)
3738         check_64bit parisc parisc64 'sizeof(void *) > 4'
3739         spic=$shared
3740     ;;
3741     ppc)
3742         check_64bit ppc ppc64 'sizeof(void *) > 4'
3743         spic=$shared
3744     ;;
3745     s390)
3746         check_64bit s390 s390x 'sizeof(void *) > 4'
3747         spic=$shared
3748     ;;
3749     sparc)
3750         check_64bit sparc sparc64 'sizeof(void *) > 4'
3751         spic=$shared
3752     ;;
3753     x86)
3754         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3755         if test "$subarch" = "x86_64"; then
3756             spic=$shared
3757         fi
3758     ;;
3759     ppc)
3760         check_cc <<EOF && subarch="ppc64"
3761         int test[(int)sizeof(char*) - 7];
3762 EOF
3763     ;;
3764 esac
3765
3766 enable $subarch
3767 enabled spic && enable_weak pic
3768
3769 # OS specific
3770 case $target_os in
3771     aix)
3772         SHFLAGS=-shared
3773         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3774         enabled shared && add_ldflags -Wl,-brtl
3775         ;;
3776     haiku)
3777         prefix_default="/boot/common"
3778         network_extralibs="-lnetwork"
3779         host_libs=
3780         ;;
3781     sunos)
3782         SHFLAGS='-shared -Wl,-h,$$(@F)'
3783         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3784         network_extralibs="-lsocket -lnsl"
3785         # When using suncc to build, the Solaris linker will mark
3786         # an executable with each instruction set encountered by
3787         # the Solaris assembler.  As our libraries contain their own
3788         # guards for processor-specific code, instead suppress
3789         # generation of the HWCAPS ELF section on Solaris x86 only.
3790         enabled_all suncc x86 &&
3791             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3792             add_ldflags -Wl,-M,mapfile
3793         nm_default='nm -P -g'
3794         ;;
3795     netbsd)
3796         disable symver
3797         oss_indev_extralibs="-lossaudio"
3798         oss_outdev_extralibs="-lossaudio"
3799         enabled gcc || check_ldflags -Wl,-zmuldefs
3800         ;;
3801     openbsd|bitrig)
3802         disable symver
3803         SHFLAGS='-shared'
3804         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3805         SLIB_INSTALL_LINKS=
3806         oss_indev_extralibs="-lossaudio"
3807         oss_outdev_extralibs="-lossaudio"
3808         ;;
3809     dragonfly)
3810         disable symver
3811         ;;
3812     freebsd)
3813         ;;
3814     bsd/os)
3815         add_extralibs -lpoll -lgnugetopt
3816         strip="strip -d"
3817         ;;
3818     darwin)
3819         gas="gas-preprocessor.pl $cc"
3820         enabled ppc && add_asflags -force_cpusubtype_ALL
3821         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3822         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3823         strip="${strip} -x"
3824         add_ldflags -Wl,-dynamic,-search_paths_first
3825         SLIBSUF=".dylib"
3826         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3827         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3828         objformat="macho"
3829         enabled x86_64 && objformat="macho64"
3830         enabled_any pic shared ||
3831             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3832         ;;
3833     mingw32*)
3834         if test $target_os = "mingw32ce"; then
3835             disable network
3836         else
3837             target_os=mingw32
3838         fi
3839         LIBTARGET=i386
3840         if enabled x86_64; then
3841             LIBTARGET="i386:x86-64"
3842         elif enabled arm; then
3843             LIBTARGET=arm-wince
3844         fi
3845         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3846         check_ldflags -Wl,--nxcompat
3847         check_ldflags -Wl,--dynamicbase
3848         shlibdir_default="$bindir_default"
3849         SLIBPREF=""
3850         SLIBSUF=".dll"
3851         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3852         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3853         dlltool="${cross_prefix}dlltool"
3854         if check_cmd lib.exe -list; then
3855             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3856             if enabled x86_64; then
3857                 LIBTARGET=x64
3858             fi
3859         elif check_cmd $dlltool --version; then
3860             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3861         fi
3862         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3863         SLIB_INSTALL_LINKS=
3864         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3865         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3866         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3867         objformat="win32"
3868         ranlib=:
3869         enable dos_paths
3870         ;;
3871     win32|win64)
3872         disable symver
3873         if enabled shared; then
3874             # Link to the import library instead of the normal static library
3875             # for shared libs.
3876             LD_LIB='%.lib'
3877             # Cannot build both shared and static libs with MSVC or icl.
3878             disable static
3879         fi
3880         shlibdir_default="$bindir_default"
3881         SLIBPREF=""
3882         SLIBSUF=".dll"
3883         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3884         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3885         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3886         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3887         SLIB_INSTALL_LINKS=
3888         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3889         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3890         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3891         objformat="win32"
3892         ranlib=:
3893         enable dos_paths
3894         ;;
3895     cygwin*)
3896         target_os=cygwin
3897         shlibdir_default="$bindir_default"
3898         SLIBPREF="cyg"
3899         SLIBSUF=".dll"
3900         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3901         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3902         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3903         SLIB_INSTALL_LINKS=
3904         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3905         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3906         objformat="win32"
3907         enable dos_paths
3908         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3909         ;;
3910     *-dos|freedos|opendos)
3911         network_extralibs="-lsocket"
3912         objformat="coff"
3913         enable dos_paths
3914         add_cppflags -U__STRICT_ANSI__
3915         ;;
3916     linux)
3917         enable dv1394
3918         ;;
3919     irix*)
3920         target_os=irix
3921         ranlib="echo ignoring ranlib"
3922         ;;
3923     os/2*)
3924         strip="lxlite -CS"
3925         ln_s="cp -f"
3926         objformat="aout"
3927         add_cppflags -D_GNU_SOURCE
3928         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3929         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3930         LIBSUF="_s.a"
3931         SLIBPREF=""
3932         SLIBSUF=".dll"
3933         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3934         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3935         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3936             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3937             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3938             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3939             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3940             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3941         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3942             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3943         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3944         enable dos_paths
3945         enable_weak os2threads
3946         ;;
3947     gnu/kfreebsd)
3948         add_cppflags -D_BSD_SOURCE
3949         ;;
3950     gnu)
3951         ;;
3952     qnx)
3953         add_cppflags -D_QNX_SOURCE
3954         network_extralibs="-lsocket"
3955         ;;
3956     symbian)
3957         SLIBSUF=".dll"
3958         enable dos_paths
3959         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3960         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3961         add_ldflags -Wl,--target1-abs,--no-undefined \
3962                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3963                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3964         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3965                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3966                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3967         ;;
3968     osf1)
3969         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3970         ;;
3971     minix)
3972         ;;
3973     plan9)
3974         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3975                      -D_REENTRANT_SOURCE        \
3976                      -D_RESEARCH_SOURCE         \
3977                      -DFD_SETSIZE=96            \
3978                      -DHAVE_SOCK_OPTS
3979         add_compat strtod.o strtod=avpriv_strtod
3980         network_extralibs='-lbsd'
3981         exeobjs=compat/plan9/main.o
3982         disable ffserver
3983         cp_f='cp'
3984         ;;
3985     none)
3986         ;;
3987     *)
3988         die "Unknown OS '$target_os'."
3989         ;;
3990 esac
3991
3992 # determine libc flavour
3993
3994 probe_libc(){
3995     pfx=$1
3996     pfx_no_=${pfx%_}
3997     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3998     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3999         eval ${pfx}libc_type=uclibc
4000         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4001     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4002         eval ${pfx}libc_type=glibc
4003         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4004     # MinGW headers can be installed on Cygwin, so check for newlib first.
4005     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4006         eval ${pfx}libc_type=newlib
4007         add_${pfx}cppflags -U__STRICT_ANSI__
4008     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4009     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4010         eval ${pfx}libc_type=mingw64
4011         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4012             add_compat msvcrt/snprintf.o
4013             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4014         fi
4015         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4016         eval test \$${pfx_no_}cc_type = "gcc" &&
4017             add_${pfx}cppflags -D__printf__=__gnu_printf__
4018     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4019          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4020         eval ${pfx}libc_type=mingw32
4021         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4022             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4023             die "ERROR: MinGW32 runtime version must be >= 3.15."
4024         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4025         eval test \$${pfx_no_}cc_type = "gcc" &&
4026             add_${pfx}cppflags -D__printf__=__gnu_printf__
4027     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4028         eval ${pfx}libc_type=msvcrt
4029         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4030         # 0x601 by default unless something else is set by the user.
4031         # This can easily lead to us detecting functions only present
4032         # in such new versions and producing binaries requiring windows 7.0.
4033         # Therefore explicitly set the default to XP unless the user has
4034         # set something else on the command line.
4035         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4036             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4037     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4038         eval ${pfx}libc_type=klibc
4039     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4040         eval ${pfx}libc_type=bionic
4041     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4042         eval ${pfx}libc_type=solaris
4043         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4044     fi
4045 }
4046
4047 probe_libc
4048 test -n "$libc_type" && enable libc_$libc_type
4049 probe_libc host_
4050 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4051
4052 case $libc_type in
4053     bionic)
4054         add_compat strtod.o strtod=avpriv_strtod
4055         ;;
4056     msvcrt)
4057         add_compat strtod.o strtod=avpriv_strtod
4058         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4059                                      _snprintf=avpriv_snprintf  \
4060                                      vsnprintf=avpriv_vsnprintf
4061         ;;
4062 esac
4063
4064 # hacks for compiler/libc/os combinations
4065
4066 if enabled_all tms470 libc_glibc; then
4067     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4068     add_cppflags -D__USER_LABEL_PREFIX__=
4069     add_cppflags -D__builtin_memset=memset
4070     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4071     add_cflags   -pds=48    # incompatible redefinition of macro
4072 fi
4073
4074 if enabled_all ccc libc_glibc; then
4075     add_ldflags -Wl,-z,now  # calls to libots crash without this
4076 fi
4077
4078 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4079     add_cppflags '-I\$(SRC_PATH)/compat/float'
4080
4081 esc(){
4082     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4083 }
4084
4085 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4086
4087 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4088
4089 set_default $PATHS_LIST
4090 set_default nm
4091
4092 # we need to build at least one lib type
4093 if ! enabled_any static shared; then
4094     cat <<EOF
4095 At least one library type must be built.
4096 Specify --enable-static to build the static libraries or --enable-shared to
4097 build the shared libraries as well. To only build the shared libraries specify
4098 --disable-static in addition to --enable-shared.
4099 EOF
4100     exit 1;
4101 fi
4102
4103 # backward compatibility layer for incompatible_libav/fork_abi
4104 enabled incompatible_fork_abi  && enable incompatible_libav_abi
4105 enabled incompatible_libav_abi && enable incompatible_fork_abi
4106
4107 die_license_disabled() {
4108     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4109 }
4110
4111 die_license_disabled_gpl() {
4112     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4113 }
4114
4115 die_license_disabled gpl frei0r
4116 die_license_disabled gpl libcdio
4117 die_license_disabled gpl libutvideo
4118 die_license_disabled gpl libvidstab
4119 die_license_disabled gpl libx264
4120 die_license_disabled gpl libx265
4121 die_license_disabled gpl libxavs
4122 die_license_disabled gpl libxvid
4123 die_license_disabled gpl libzvbi
4124 die_license_disabled gpl x11grab
4125
4126 die_license_disabled nonfree libaacplus
4127 die_license_disabled nonfree libfaac
4128 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4129 enabled gpl && die_license_disabled_gpl nonfree openssl
4130
4131 die_license_disabled version3 libopencore_amrnb
4132 die_license_disabled version3 libopencore_amrwb
4133 die_license_disabled version3 libvo_aacenc
4134 die_license_disabled version3 libvo_amrwbenc
4135
4136 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4137
4138 disabled optimizations || check_cflags -fomit-frame-pointer
4139
4140 enable_weak_pic() {
4141     disabled pic && return
4142     enable pic
4143     add_cppflags -DPIC
4144     case "$target_os" in
4145     mingw*|cygwin*)
4146         ;;
4147     *)
4148         add_cflags -fPIC
4149         ;;
4150     esac
4151     add_asflags  -fPIC
4152 }
4153
4154 enabled pic && enable_weak_pic
4155
4156 check_cc <<EOF || die "Symbol mangling check failed."
4157 int ff_extern;
4158 EOF
4159 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4160 extern_prefix=${sym%%ff_extern*}
4161
4162 check_cc <<EOF && enable_weak inline_asm
4163 void foo(void) { __asm__ volatile ("" ::); }
4164 EOF
4165
4166 _restrict=
4167 for restrict_keyword in restrict __restrict__ __restrict; do
4168     check_cc <<EOF && _restrict=$restrict_keyword && break
4169 void foo(char * $restrict_keyword p);
4170 EOF
4171 done
4172
4173 check_cc <<EOF && enable pragma_deprecated
4174 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4175 EOF
4176
4177 check_cc <<EOF && enable attribute_packed
4178 struct { int x; } __attribute__((packed)) x;
4179 EOF
4180
4181 check_cc <<EOF && enable attribute_may_alias
4182 union { int x; } __attribute__((may_alias)) x;
4183 EOF
4184
4185 check_cc <<EOF || die "endian test failed"
4186 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4187 EOF
4188 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4189
4190 check_inline_asm inline_asm_labels '"1:\n"'
4191
4192 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4193
4194 if enabled aarch64; then
4195     # internal assembler in clang 3.3 does not support this instruction
4196     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4197     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4198
4199     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4200
4201 elif enabled alpha; then
4202
4203     check_cflags -mieee
4204
4205 elif enabled arm; then
4206
4207     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4208 float func(float a, float b){ return a+b; }
4209 EOF
4210
4211     enabled thumb && check_cflags -mthumb || check_cflags -marm
4212     nogas=die
4213
4214     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4215         enable vfp_args
4216     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4217         case "${cross_prefix:-$cc}" in
4218             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4219             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4220 __asm__ (".eabi_attribute 28, 1");
4221 int main(void) { return 0; }
4222 EOF
4223         esac
4224         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4225     fi
4226
4227     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4228     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4229     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4230     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4231     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4232     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4233
4234     [ $target_os = linux ] ||
4235         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4236             $ARCH_EXT_LIST_ARM
4237
4238     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4239
4240     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4241
4242 elif enabled mips; then
4243
4244     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4245     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4246      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4247     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4248      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4249     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4250      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4251     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4252      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4253
4254 elif enabled parisc; then
4255
4256     if enabled gcc; then
4257         case $($cc -dumpversion) in
4258             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4259         esac
4260     fi
4261
4262 elif enabled ppc; then
4263
4264     enable local_aligned_8 local_aligned_16
4265
4266     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4267     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4268     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4269     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4270
4271     # AltiVec flags: The FSF version of GCC differs from the Apple version
4272     if enabled altivec; then
4273         if ! enabled_any pic ppc64; then
4274             nogas=warn
4275         fi
4276         check_cflags -maltivec -mabi=altivec &&
4277         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4278         check_cflags -faltivec
4279
4280         # check if our compiler supports Motorola AltiVec C API
4281         check_cc <<EOF || disable altivec
4282 $inc_altivec_h
4283 int main(void) {
4284     vector signed int v1 = (vector signed int) { 0 };
4285     vector signed int v2 = (vector signed int) { 1 };
4286     v1 = vec_add(v1, v2);
4287     return 0;
4288 }
4289 EOF
4290
4291         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4292     fi
4293
4294 elif enabled x86; then
4295
4296     check_builtin rdtsc    intrin.h   "__rdtsc()"
4297     check_builtin mm_empty mmintrin.h "_mm_empty()"
4298
4299     enable local_aligned_8 local_aligned_16
4300
4301     # check whether EBP is available on x86
4302     # As 'i' is stored on the stack, this program will crash
4303     # if the base pointer is used to access it because the
4304     # base pointer is cleared in the inline assembly code.
4305     check_exec_crash <<EOF && enable ebp_available
4306 volatile int i=0;
4307 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4308 return i;
4309 EOF
4310
4311     # check whether EBX is available on x86
4312     check_inline_asm ebx_available '""::"b"(0)' &&
4313         check_inline_asm ebx_available '"":::"%ebx"'
4314
4315     # check whether xmm clobbers are supported
4316     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4317
4318     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4319         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4320
4321     # check whether binutils is new enough to compile SSSE3/MMXEXT
4322     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4323     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4324
4325     if ! disabled_any asm mmx yasm; then
4326         if check_cmd $yasmexe --version; then
4327             enabled x86_64 && yasm_extra="-m amd64"
4328             yasm_debug="-g dwarf2"
4329         elif check_cmd nasm -v; then
4330             yasmexe=nasm
4331             yasm_debug="-g -F dwarf"
4332             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4333         fi
4334
4335         YASMFLAGS="-f $objformat $yasm_extra"
4336         enabled pic               && append YASMFLAGS "-DPIC"
4337         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4338         case "$objformat" in
4339             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4340         esac
4341
4342         check_yasm "movbe ecx, [5]" && enable yasm ||
4343             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4344         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4345         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4346         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4347         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4348         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4349         check_yasm "CPU amdnop" || disable cpunop
4350     fi
4351
4352     case "$cpu" in
4353         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4354             disable fast_clz
4355         ;;
4356     esac
4357
4358 fi
4359
4360 if enabled asm; then
4361     as=${gas:=$as}
4362     check_as <<EOF && enable gnu_as || \
4363         $nogas "GNU assembler not found, install gas-preprocessor"
4364 .macro m n
4365 \n: .int 0
4366 .endm
4367 m x
4368 EOF
4369 fi
4370
4371 check_ldflags -Wl,--as-needed
4372
4373 if check_func dlopen; then
4374     ldl=
4375 elif check_func dlopen -ldl; then
4376     ldl=-ldl
4377 fi
4378
4379 if ! disabled network; then
4380     check_func getaddrinfo $network_extralibs
4381     check_func getservbyport $network_extralibs
4382     check_func inet_aton $network_extralibs
4383
4384     check_type netdb.h "struct addrinfo"
4385     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4386     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4387     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4388     check_type poll.h "struct pollfd"
4389     check_type netinet/sctp.h "struct sctp_event_subscribe"
4390     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4391     check_type netinet/in.h "struct sockaddr_in6"
4392     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4393     check_type "sys/types.h sys/socket.h" socklen_t
4394
4395     # Prefer arpa/inet.h over winsock2
4396     if check_header arpa/inet.h ; then
4397         check_func closesocket
4398     elif check_header winsock2.h ; then
4399         check_func_headers winsock2.h closesocket -lws2 &&
4400             network_extralibs="-lws2" ||
4401         { check_func_headers winsock2.h closesocket -lws2_32 &&
4402             network_extralibs="-lws2_32"; } || disable winsock2_h network
4403         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4404
4405         check_type ws2tcpip.h socklen_t
4406         check_type ws2tcpip.h "struct addrinfo"
4407         check_type ws2tcpip.h "struct group_source_req"
4408         check_type ws2tcpip.h "struct ip_mreq_source"
4409         check_type ws2tcpip.h "struct ipv6_mreq"
4410         check_type winsock2.h "struct pollfd"
4411         check_struct winsock2.h "struct sockaddr" sa_len
4412         check_type ws2tcpip.h "struct sockaddr_in6"
4413         check_type ws2tcpip.h "struct sockaddr_storage"
4414     else
4415         disable network
4416     fi
4417 fi
4418
4419 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4420 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4421 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4422 check_builtin sarestart signal.h "SA_RESTART"
4423 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4424
4425 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4426 check_func  ${malloc_prefix}memalign            && enable memalign
4427 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4428
4429 check_func  access
4430 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4431 check_func  fcntl
4432 check_func  fork
4433 check_func  gethrtime
4434 check_func  getopt
4435 check_func  getrusage
4436 check_func  gettimeofday
4437 check_func  isatty
4438 check_func  localtime_r
4439 check_func  mach_absolute_time
4440 check_func  mkstemp
4441 check_func  mmap
4442 check_func  mprotect
4443 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4444 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4445 check_func  sched_getaffinity
4446 check_func  setrlimit
4447 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4448 check_func  strerror_r
4449 check_func  sysconf
4450 check_func  sysctl
4451 check_func  usleep
4452
4453 check_func_headers conio.h kbhit
4454 check_func_headers io.h setmode
4455 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4456 check_func_headers stdlib.h getenv
4457
4458 check_func_headers windows.h GetProcessAffinityMask
4459 check_func_headers windows.h GetProcessTimes
4460 check_func_headers windows.h GetSystemTimeAsFileTime
4461 check_func_headers windows.h MapViewOfFile
4462 check_func_headers windows.h PeekNamedPipe
4463 check_func_headers windows.h SetConsoleTextAttribute
4464 check_func_headers windows.h Sleep
4465 check_func_headers windows.h VirtualAlloc
4466 check_func_headers glob.h glob
4467 enabled xlib &&
4468     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4469
4470 check_header cl/cl.h
4471 check_header direct.h
4472 check_header dlfcn.h
4473 check_header dxva.h
4474 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4475 check_header io.h
4476 check_header libcrystalhd/libcrystalhd_if.h
4477 check_header mach/mach_time.h
4478 check_header malloc.h
4479 check_header poll.h
4480 check_header sys/mman.h
4481 check_header sys/param.h
4482 check_header sys/resource.h
4483 check_header sys/select.h
4484 check_header sys/time.h
4485 check_header sys/un.h
4486 check_header termios.h
4487 check_header unistd.h
4488 check_header vdpau/vdpau.h
4489 check_header vdpau/vdpau_x11.h
4490 check_header VideoDecodeAcceleration/VDADecoder.h
4491 check_header windows.h
4492 check_header X11/extensions/XvMClib.h
4493 check_header asm/types.h
4494
4495 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4496 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4497 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4498
4499 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4500
4501 if ! disabled w32threads && ! enabled pthreads; then
4502     check_func_headers "windows.h process.h" _beginthreadex &&
4503         enable w32threads || disable w32threads
4504 fi
4505
4506 # check for some common methods of building with pthread support
4507 # do this before the optional library checks as some of them require pthreads
4508 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4509     enable pthreads
4510     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4511         add_cflags -pthread
4512         add_extralibs -pthread
4513     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4514         add_cflags -pthreads
4515         add_extralibs -pthreads
4516     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4517         add_extralibs -lpthreadGC2
4518     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4519         :
4520     elif ! check_func pthread_join && ! check_func pthread_create; then
4521         disable pthreads
4522     fi
4523     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4524 fi
4525
4526
4527 if enabled pthreads; then
4528   check_func pthread_cancel
4529 fi
4530
4531 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4532 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4533
4534 check_lib math.h sin -lm && LIBM="-lm"
4535 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4536
4537 atan2f_args=2
4538 ldexpf_args=2
4539 powf_args=2
4540
4541 for func in $MATH_FUNCS; do
4542     eval check_mathfunc $func \${${func}_args:-1}
4543 done
4544
4545 # these are off by default, so fail if requested and not available
4546 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4547                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4548                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4549 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4550 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4551 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4552 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4553 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4554 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4555 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4556 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4557 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4558 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4559                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4560                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4561 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4562 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4563 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4564 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"
4565 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4566 enabled libfreetype       && require_libfreetype
4567 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4568 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4569                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4570                                done || die "ERROR: libgsm not found"; }
4571 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4572 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4573 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4574 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4575 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4576 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4577 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4578 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4579                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4580                                die "ERROR: libopenjpeg not found"; }
4581 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4582 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4583 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4584 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4585 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4586 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4587 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4588 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4589 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4590 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4591     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4592     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4593 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4594 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4595                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4596                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4597 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4598 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4599 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4600 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4601 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4602 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4603 enabled libvpx            && {
4604     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4605                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4606     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 ||
4607                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4608     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4609     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; } }
4610 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4611 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4612 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4613                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4614                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4615 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4616                              { check_cpp_condition x265.h "X265_BUILD >= 9" ||
4617                                die "ERROR: libx265 version must be >= 9."; }
4618 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4619 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4620 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4621 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4622 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4623                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4624                                die "ERROR: openal not found"; } &&
4625                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4626                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4627 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4628                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4629                                die "ERROR: opencl not found"; } &&
4630                              { ! enabled_any w32threads os2threads ||
4631                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4632                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4633                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4634                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4635 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4636                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4637                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4638                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4639                                die "ERROR: opengl not found."
4640                              }
4641 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4642                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4643                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4644                                die "ERROR: openssl not found"; }
4645
4646 if enabled gnutls; then
4647     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4648     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4649 fi
4650
4651 # libdc1394 check
4652 if enabled libdc1394; then
4653     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4654         enable libdc1394_2; } ||
4655     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4656         enable libdc1394_1; } ||
4657     die "ERROR: No version of libdc1394 found "
4658 fi
4659
4660 SDL_CONFIG="${cross_prefix}sdl-config"
4661 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4662     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4663     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4664     enable sdl
4665 else
4666   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4667     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4668     sdl_libs=$("${SDL_CONFIG}" --libs)
4669     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4670     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4671     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4672     enable sdl
4673   fi
4674 fi
4675 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4676
4677 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4678 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4679 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4680 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4681 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4682
4683 check_header linux/fb.h
4684 check_header linux/videodev.h
4685 check_header linux/videodev2.h
4686 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4687
4688 check_header sys/videoio.h
4689
4690 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4691 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4692 # w32api 3.12 had it defined wrong
4693 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4694
4695 check_type "dshow.h" IBaseFilter
4696
4697 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4698 { check_header dev/bktr/ioctl_meteor.h &&
4699   check_header dev/bktr/ioctl_bt848.h; } ||
4700 { check_header machine/ioctl_meteor.h &&
4701   check_header machine/ioctl_bt848.h; } ||
4702 { check_header dev/video/meteor/ioctl_meteor.h &&
4703   check_header dev/video/bktr/ioctl_bt848.h; } ||
4704 check_header dev/ic/bt8xx.h
4705
4706 check_header sndio.h
4707 if check_struct sys/soundcard.h audio_buf_info bytes; then
4708     enable_safe sys/soundcard.h
4709 else
4710     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4711     #include <sys/soundcard.h>
4712     audio_buf_info abc;
4713 EOF
4714 fi
4715 check_header soundcard.h
4716
4717 enabled_any alsa_indev alsa_outdev &&
4718     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4719
4720 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4721     check_func jack_port_get_latency_range -ljack
4722
4723 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4724
4725 if enabled libcdio; then
4726     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4727     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4728     die "ERROR: libcdio-paranoia not found"
4729 fi
4730
4731 enabled xlib &&
4732     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4733
4734 enabled x11grab                                           &&
4735 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4736 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4737 { enabled xlib || die "ERROR: Xlib not found"; }
4738
4739 enabled vaapi &&
4740     check_lib va/va.h vaInitialize -lva ||
4741     disable vaapi
4742
4743 enabled vdpau &&
4744     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4745     disable vdpau
4746
4747 enabled vdpau && enabled xlib &&
4748     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4749     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4750     enable vdpau_x11
4751
4752 # Funny iconv installations are not unusual, so check it after all flags have been set
4753 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4754
4755 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4756
4757 # add some useful compiler flags if supported
4758 check_cflags -Wdeclaration-after-statement
4759 check_cflags -Wall
4760 check_cflags -Wdisabled-optimization
4761 check_cflags -Wpointer-arith
4762 check_cflags -Wredundant-decls
4763 check_cflags -Wwrite-strings
4764 check_cflags -Wtype-limits
4765 check_cflags -Wundef
4766 check_cflags -Wmissing-prototypes
4767 check_cflags -Wno-pointer-to-int-cast
4768 check_cflags -Wstrict-prototypes
4769 enabled extra_warnings && check_cflags -Winline
4770
4771 check_disable_warning(){
4772     warning_flag=-W${1#-Wno-}
4773     test_cflags $warning_flag && add_cflags $1
4774 }
4775
4776 check_disable_warning -Wno-parentheses
4777 check_disable_warning -Wno-switch
4778 check_disable_warning -Wno-format-zero-length
4779 check_disable_warning -Wno-pointer-sign
4780
4781 # add some linker flags
4782 check_ldflags -Wl,--warn-common
4783 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4784 enabled rpath && add_ldflags -Wl,-rpath=$libdir
4785 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4786
4787 # add some strip flags
4788 # -wN '..@*' is more selective than -x, but not available everywhere.
4789 check_stripflags -wN \'..@*\' || check_stripflags -x
4790
4791 enabled neon_clobber_test &&
4792     check_ldflags -Wl,--wrap,avcodec_open2              \
4793                   -Wl,--wrap,avcodec_decode_audio4      \
4794                   -Wl,--wrap,avcodec_decode_video2      \
4795                   -Wl,--wrap,avcodec_decode_subtitle2   \
4796                   -Wl,--wrap,avcodec_encode_audio2      \
4797                   -Wl,--wrap,avcodec_encode_video2      \
4798                   -Wl,--wrap,avcodec_encode_subtitle    \
4799                   -Wl,--wrap,swr_convert                \
4800                   -Wl,--wrap,avresample_convert ||
4801     disable neon_clobber_test
4802
4803 enabled xmm_clobber_test &&
4804     check_ldflags -Wl,--wrap,avcodec_open2              \
4805                   -Wl,--wrap,avcodec_decode_audio4      \
4806                   -Wl,--wrap,avcodec_decode_video2      \
4807                   -Wl,--wrap,avcodec_decode_subtitle2   \
4808                   -Wl,--wrap,avcodec_encode_audio2      \
4809                   -Wl,--wrap,avcodec_encode_video       \
4810                   -Wl,--wrap,avcodec_encode_video2      \
4811                   -Wl,--wrap,avcodec_encode_subtitle    \
4812                   -Wl,--wrap,swr_convert                \
4813                   -Wl,--wrap,avresample_convert         \
4814                   -Wl,--wrap,sws_scale ||
4815     disable xmm_clobber_test
4816
4817 echo "X{};" > $TMPV
4818 if test_ldflags -Wl,--version-script,$TMPV; then
4819     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4820     check_cc <<EOF && enable symver_asm_label
4821 void ff_foo(void) __asm__ ("av_foo@VERSION");
4822 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4823 EOF
4824     check_cc <<EOF && enable symver_gnu_asm
4825 __asm__(".symver ff_foo,av_foo@VERSION");
4826 void ff_foo(void) {}
4827 EOF
4828 fi
4829
4830 if [ -z "$optflags" ]; then
4831     if enabled small; then
4832         optflags=$cflags_size
4833     elif enabled optimizations; then
4834         optflags=$cflags_speed
4835     else
4836         optflags=$cflags_noopt
4837     fi
4838 fi
4839
4840 check_optflags(){
4841     check_cflags "$@"
4842     enabled lto && check_ldflags "$@"
4843 }
4844
4845
4846 if enabled lto; then
4847     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4848     check_cflags  -flto
4849     check_ldflags -flto $cpuflags
4850 fi
4851
4852 check_optflags $optflags
4853 check_optflags -fno-math-errno
4854 check_optflags -fno-signed-zeros
4855
4856 enabled ftrapv && check_cflags -ftrapv
4857
4858 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4859 int x;
4860 EOF
4861
4862
4863 if enabled icc; then
4864     # Just warnings, no remarks
4865     check_cflags -w1
4866     # -wd: Disable following warnings
4867     # 144, 167, 556: -Wno-pointer-sign
4868     # 188: enumerated type mixed with another type
4869     # 1292: attribute "foo" ignored
4870     # 1419: external declaration in primary source file
4871     # 10006: ignoring unknown option -fno-signed-zeros
4872     # 10148: ignoring unknown option -Wno-parentheses
4873     # 10156: ignoring option '-W'; no argument required
4874     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4875     # 11030: Warning unknown option --as-needed
4876     # 10156: ignoring option '-export'; no argument required
4877     check_ldflags -wd10156,11030
4878     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4879     enable ebp_available
4880     if enabled x86_32; then
4881         icc_version=$($cc -dumpversion)
4882         test ${icc_version%%.*} -ge 11 &&
4883             check_cflags -falign-stack=maintain-16-byte ||
4884             disable aligned_stack
4885     fi
4886 elif enabled ccc; then
4887     # disable some annoying warnings
4888     add_cflags -msg_disable bitnotint
4889     add_cflags -msg_disable mixfuncvoid
4890     add_cflags -msg_disable nonstandcast
4891     add_cflags -msg_disable unsupieee
4892 elif enabled gcc; then
4893     check_optflags -fno-tree-vectorize
4894     check_cflags -Werror=implicit-function-declaration
4895     check_cflags -Werror=missing-prototypes
4896     check_cflags -Werror=return-type
4897     check_cflags -Werror=vla
4898     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4899 elif enabled llvm_gcc; then
4900     check_cflags -mllvm -stack-alignment=16
4901 elif enabled clang; then
4902     check_cflags -mllvm -stack-alignment=16
4903     check_cflags -Qunused-arguments
4904     check_cflags -Werror=implicit-function-declaration
4905     check_cflags -Werror=missing-prototypes
4906     check_cflags -Werror=return-type
4907 elif enabled cparser; then
4908     add_cflags -Wno-missing-variable-declarations
4909     add_cflags -Wno-empty-statement
4910 elif enabled armcc; then
4911     # 2523: use of inline assembler is deprecated
4912     add_cflags -W${armcc_opt},--diag_suppress=2523
4913     add_cflags -W${armcc_opt},--diag_suppress=1207
4914     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4915     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4916     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4917     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4918 elif enabled tms470; then
4919     add_cflags -pds=824 -pds=837
4920     disable inline_asm
4921 elif enabled pathscale; then
4922     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4923 elif enabled_any msvc icl; then
4924     enabled x86_32 && disable aligned_stack
4925     enabled_all x86_32 debug && add_cflags -Oy-
4926     enabled debug && add_ldflags -debug
4927     enable pragma_deprecated
4928     if enabled icl; then
4929         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4930         # (correctly) on icl 13.x.
4931         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4932             add_cflags -Qansi-alias
4933         # icl will pass the inline asm tests but inline asm is currently
4934         # not supported (build will fail)
4935         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4936         disable inline_asm
4937     fi
4938 fi
4939
4940 case $as_type in
4941     clang)
4942         add_asflags -Qunused-arguments
4943     ;;
4944 esac
4945
4946 case $ld_type in
4947     clang)
4948         check_ldflags -Qunused-arguments
4949     ;;
4950 esac
4951
4952 case $target_os in
4953     osf1)
4954         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4955     ;;
4956     plan9)
4957         add_cppflags -Dmain=plan9_main
4958     ;;
4959 esac
4960
4961 enable frame_thread_encoder
4962
4963 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4964
4965 check_deps $CONFIG_LIST       \
4966            $CONFIG_EXTRA      \
4967            $HAVE_LIST         \
4968            $ALL_COMPONENTS    \
4969
4970 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"
4971
4972
4973 if test $target_os = "haiku"; then
4974     disable memalign
4975     disable posix_memalign
4976 fi
4977
4978 ! enabled_any memalign posix_memalign aligned_malloc &&
4979     enabled_any $need_memalign && enable memalign_hack
4980
4981 # add_dep lib dep
4982 # -> enable ${lib}_deps_${dep}
4983 # -> add $dep to ${lib}_deps only once
4984 add_dep() {
4985     lib=$1
4986     dep=$2
4987     enabled "${lib}_deps_${dep}" && return 0
4988     enable  "${lib}_deps_${dep}"
4989     prepend "${lib}_deps" $dep
4990 }
4991
4992 # merge deps lib components
4993 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4994 merge_deps() {
4995     lib=$1
4996     shift
4997     for comp in $*; do
4998         enabled $comp || continue
4999         eval "dep=\"\$${comp}_deps\""
5000         for d in $dep; do
5001             add_dep $lib $d
5002         done
5003     done
5004 }
5005
5006 merge_deps libavfilter $FILTER_LIST
5007
5008 for thread in $THREADS_LIST; do
5009     if enabled $thread; then
5010         test -n "$thread_type" &&
5011             die "ERROR: Only one thread type must be selected." ||
5012             thread_type="$thread"
5013     fi
5014 done
5015
5016 echo "install prefix            $prefix"
5017 echo "source path               $source_path"
5018 echo "C compiler                $cc"
5019 echo "C library                 $libc_type"
5020 if test "$host_cc" != "$cc"; then
5021     echo "host C compiler           $host_cc"
5022     echo "host C library            $host_libc_type"
5023 fi
5024 echo "ARCH                      $arch ($cpu)"
5025 if test "$build_suffix" != ""; then
5026     echo "build suffix              $build_suffix"
5027 fi
5028 if test "$progs_suffix" != ""; then
5029     echo "progs suffix              $progs_suffix"
5030 fi
5031 if test "$extra_version" != ""; then
5032     echo "version string suffix     $extra_version"
5033 fi
5034 echo "big-endian                ${bigendian-no}"
5035 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5036 if enabled x86; then
5037     echo "${yasmexe}                      ${yasm-no}"
5038     echo "MMX enabled               ${mmx-no}"
5039     echo "MMXEXT enabled            ${mmxext-no}"
5040     echo "3DNow! enabled            ${amd3dnow-no}"
5041     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5042     echo "SSE enabled               ${sse-no}"
5043     echo "SSSE3 enabled             ${ssse3-no}"
5044     echo "AVX enabled               ${avx-no}"
5045     echo "XOP enabled               ${xop-no}"
5046     echo "FMA3 enabled              ${fma3-no}"
5047     echo "FMA4 enabled              ${fma4-no}"
5048     echo "i686 features enabled     ${i686-no}"
5049     echo "CMOV is fast              ${fast_cmov-no}"
5050     echo "EBX available             ${ebx_available-no}"
5051     echo "EBP available             ${ebp_available-no}"
5052 fi
5053 if enabled aarch64; then
5054     echo "NEON enabled              ${neon-no}"
5055     echo "VFP enabled               ${vfp-no}"
5056 fi
5057 if enabled arm; then
5058     echo "ARMv5TE enabled           ${armv5te-no}"
5059     echo "ARMv6 enabled             ${armv6-no}"
5060     echo "ARMv6T2 enabled           ${armv6t2-no}"
5061     echo "VFP enabled               ${vfp-no}"
5062     echo "NEON enabled              ${neon-no}"
5063     echo "THUMB enabled             ${thumb-no}"
5064 fi
5065 if enabled mips; then
5066     echo "MIPS FPU enabled          ${mipsfpu-no}"
5067     echo "MIPS32R2 enabled          ${mips32r2-no}"
5068     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5069     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5070 fi
5071 if enabled ppc; then
5072     echo "AltiVec enabled           ${altivec-no}"
5073     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5074     echo "dcbzl available           ${dcbzl-no}"
5075 fi
5076 echo "debug symbols             ${debug-no}"
5077 echo "strip symbols             ${stripping-no}"
5078 echo "optimize for size         ${small-no}"
5079 echo "optimizations             ${optimizations-no}"
5080 echo "static                    ${static-no}"
5081 echo "shared                    ${shared-no}"
5082 echo "postprocessing support    ${postproc-no}"
5083 echo "new filter support        ${avfilter-no}"
5084 echo "network support           ${network-no}"
5085 echo "threading support         ${thread_type-no}"
5086 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5087 echo "SDL support               ${sdl-no}"
5088 echo "opencl enabled            ${opencl-no}"
5089 echo "libzvbi enabled           ${libzvbi-no}"
5090 echo "texi2html enabled         ${texi2html-no}"
5091 echo "perl enabled              ${perl-no}"
5092 echo "pod2man enabled           ${pod2man-no}"
5093 echo "makeinfo enabled          ${makeinfo-no}"
5094 test -n "$random_seed" &&
5095     echo "random seed               ${random_seed}"
5096 echo
5097
5098 echo "External libraries:"
5099 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5100 echo
5101
5102 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5103     echo "Enabled ${type}s:"
5104     eval list=\$$(toupper $type)_LIST
5105     print_enabled '_*' $list | print_3_columns
5106     echo
5107 done
5108
5109 license="LGPL version 2.1 or later"
5110 if enabled nonfree; then
5111     license="nonfree and unredistributable"
5112 elif enabled gplv3; then
5113     license="GPL version 3 or later"
5114 elif enabled lgplv3; then
5115     license="LGPL version 3 or later"
5116 elif enabled gpl; then
5117     license="GPL version 2 or later"
5118 fi
5119
5120 echo "License: $license"
5121
5122 echo "Creating config.mak, config.h, and doc/config.texi..."
5123
5124 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5125
5126 enabled stripping || strip="echo skipping strip"
5127
5128 config_files="$TMPH config.mak doc/config.texi"
5129
5130 cat > config.mak <<EOF
5131 # Automatically generated by configure - do not modify!
5132 ifndef FFMPEG_CONFIG_MAK
5133 FFMPEG_CONFIG_MAK=1
5134 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5135 prefix=$prefix
5136 LIBDIR=\$(DESTDIR)$libdir
5137 SHLIBDIR=\$(DESTDIR)$shlibdir
5138 INCDIR=\$(DESTDIR)$incdir
5139 BINDIR=\$(DESTDIR)$bindir
5140 DATADIR=\$(DESTDIR)$datadir
5141 DOCDIR=\$(DESTDIR)$docdir
5142 MANDIR=\$(DESTDIR)$mandir
5143 SRC_PATH=$source_path
5144 ifndef MAIN_MAKEFILE
5145 SRC_PATH:=\$(SRC_PATH:.%=..%)
5146 endif
5147 CC_IDENT=$cc_ident
5148 ARCH=$arch
5149 CC=$cc
5150 CXX=$cxx
5151 AS=$as
5152 LD=$ld
5153 DEPCC=$dep_cc
5154 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5155 DEPAS=$as
5156 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5157 YASM=$yasmexe
5158 DEPYASM=$yasmexe
5159 AR=$ar
5160 ARFLAGS=$arflags
5161 AR_O=$ar_o
5162 RANLIB=$ranlib
5163 STRIP=$strip
5164 CP=cp -p
5165 LN_S=$ln_s
5166 CPPFLAGS=$CPPFLAGS
5167 CFLAGS=$CFLAGS
5168 CXXFLAGS=$CXXFLAGS
5169 ASFLAGS=$ASFLAGS
5170 AS_C=$AS_C
5171 AS_O=$AS_O
5172 CC_C=$CC_C
5173 CC_E=$CC_E
5174 CC_O=$CC_O
5175 CXX_C=$CXX_C
5176 CXX_O=$CXX_O
5177 LD_O=$LD_O
5178 LD_LIB=$LD_LIB
5179 LD_PATH=$LD_PATH
5180 DLLTOOL=$dlltool
5181 WINDRES=$windres
5182 DEPWINDRES=$dep_cc
5183 LDFLAGS=$LDFLAGS
5184 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5185 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5186 YASMFLAGS=$YASMFLAGS
5187 BUILDSUF=$build_suffix
5188 PROGSSUF=$progs_suffix
5189 FULLNAME=$FULLNAME
5190 LIBPREF=$LIBPREF
5191 LIBSUF=$LIBSUF
5192 LIBNAME=$LIBNAME
5193 SLIBPREF=$SLIBPREF
5194 SLIBSUF=$SLIBSUF
5195 EXESUF=$EXESUF
5196 EXTRA_VERSION=$extra_version
5197 CCDEP=$CCDEP
5198 CXXDEP=$CXXDEP
5199 CCDEP_FLAGS=$CCDEP_FLAGS
5200 ASDEP=$ASDEP
5201 ASDEP_FLAGS=$ASDEP_FLAGS
5202 CC_DEPFLAGS=$CC_DEPFLAGS
5203 AS_DEPFLAGS=$AS_DEPFLAGS
5204 HOSTCC=$host_cc
5205 HOSTLD=$host_ld
5206 HOSTCFLAGS=$host_cflags
5207 HOSTCPPFLAGS=$host_cppflags
5208 HOSTEXESUF=$HOSTEXESUF
5209 HOSTLDFLAGS=$host_ldflags
5210 HOSTLIBS=$host_libs
5211 DEPHOSTCC=$host_cc
5212 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5213 HOSTCCDEP=$HOSTCCDEP
5214 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5215 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5216 HOSTCC_C=$HOSTCC_C
5217 HOSTCC_O=$HOSTCC_O
5218 HOSTLD_O=$HOSTLD_O
5219 TARGET_EXEC=$target_exec $target_exec_args
5220 TARGET_PATH=$target_path
5221 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5222 CFLAGS-ffplay=$sdl_cflags
5223 ZLIB=$($ldflags_filter -lz)
5224 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5225 EXTRALIBS=$extralibs
5226 COMPAT_OBJS=$compat_objs
5227 EXEOBJS=$exeobjs
5228 INSTALL=$install
5229 LIBTARGET=${LIBTARGET}
5230 SLIBNAME=${SLIBNAME}
5231 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5232 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5233 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5234 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5235 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5236 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5237 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5238 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5239 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5240 NOREDZONE_FLAGS=$noredzone_flags
5241 EOF
5242
5243 get_version(){
5244     lcname=lib${1}
5245     name=$(toupper $lcname)
5246     file=$source_path/$lcname/version.h
5247     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5248     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5249     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5250     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5251     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5252     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5253 }
5254
5255 map 'get_version $v' $LIBRARY_LIST
5256
5257 print_program_libs(){
5258     eval "program_libs=\$${1}_libs"
5259     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5260 }
5261
5262 map 'print_program_libs $v' $PROGRAM_LIST
5263
5264 cat > $TMPH <<EOF
5265 /* Automatically generated by configure - do not modify! */
5266 #ifndef FFMPEG_CONFIG_H
5267 #define FFMPEG_CONFIG_H
5268 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5269 #define FFMPEG_LICENSE "$(c_escape $license)"
5270 #define CONFIG_THIS_YEAR 2014
5271 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5272 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5273 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5274 #define av_restrict $_restrict
5275 #define EXTERN_PREFIX "${extern_prefix}"
5276 #define EXTERN_ASM ${extern_prefix}
5277 #define BUILDSUF "$build_suffix"
5278 #define SLIBSUF "$SLIBSUF"
5279 #define HAVE_MMX2 HAVE_MMXEXT
5280 EOF
5281
5282 test -n "$assert_level" &&
5283     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5284
5285 test -n "$malloc_prefix" &&
5286     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5287
5288 if enabled yasm; then
5289     append config_files $TMPASM
5290     printf '' >$TMPASM
5291 fi
5292
5293 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5294
5295
5296 mkdir -p doc
5297 echo "@c auto-generated by configure" > doc/config.texi
5298
5299 print_config ARCH_   "$config_files" $ARCH_LIST
5300 print_config HAVE_   "$config_files" $HAVE_LIST
5301 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5302                                      $CONFIG_EXTRA      \
5303                                      $ALL_COMPONENTS    \
5304
5305 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5306 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5307
5308 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5309 cp_if_changed $TMPH config.h
5310 touch .config
5311
5312 enabled yasm && cp_if_changed $TMPASM config.asm
5313
5314 cat > $TMPH <<EOF
5315 /* Generated by ffconf */
5316 #ifndef AVUTIL_AVCONFIG_H
5317 #define AVUTIL_AVCONFIG_H
5318 EOF
5319
5320 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5321
5322 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5323
5324 cp_if_changed $TMPH libavutil/avconfig.h
5325
5326 if test -n "$WARNINGS"; then
5327     printf "\n$WARNINGS"
5328     enabled fatal_warnings && exit 1
5329 fi
5330
5331 # build pkg-config files
5332
5333 pkgconfig_generate(){
5334     name=$1
5335     shortname=${name#lib}${build_suffix}
5336     comment=$2
5337     version=$3
5338     libs=$4
5339     requires=$5
5340     enabled ${name#lib} || return 0
5341     mkdir -p $name
5342     cat <<EOF > $name/$name${build_suffix}.pc
5343 prefix=$prefix
5344 exec_prefix=\${prefix}
5345 libdir=$libdir
5346 includedir=$incdir
5347
5348 Name: $name
5349 Description: $comment
5350 Version: $version
5351 Requires: $(enabled shared || echo $requires)
5352 Requires.private: $(enabled shared && echo $requires)
5353 Conflicts:
5354 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5355 Libs.private: $(enabled shared && echo $libs)
5356 Cflags: -I\${includedir}
5357 EOF
5358
5359 mkdir -p doc/examples/pc-uninstalled
5360 includedir=${source_path}
5361 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5362     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5363 prefix=
5364 exec_prefix=
5365 libdir=\${pcfiledir}/../../../$name
5366 includedir=${includedir}
5367
5368 Name: $name
5369 Description: $comment
5370 Version: $version
5371 Requires: $requires
5372 Conflicts:
5373 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5374 Cflags: -I\${includedir}
5375 EOF
5376 }
5377
5378 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5379 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5380 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5381 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5382 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5383 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5384 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5385 lavfi_libs=${lavfi_libs%, }
5386
5387 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5388 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5389
5390 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5391 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5392 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5393 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5394 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5395 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5396 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5397 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5398 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"