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   --enable-vda             enable VDA code
 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-libxavs         enable AVS encoding via xavs [no]
 248   --enable-libxvid         enable Xvid encoding via xvidcore,
 249                            native MPEG-4/Xvid encoder exists [no]
 250   --enable-libzmq          enable message passing via libzmq [no]
 251   --enable-libzvbi         enable teletext support via libzvbi [no]
 252   --enable-openal          enable OpenAL 1.1 capture support [no]
 253   --enable-opencl          enable OpenCL code
 254   --enable-openssl         enable openssl [no]
 255   --enable-x11grab         enable X11 grabbing [no]
 256   --disable-zlib           disable zlib [autodetect]
 257
 258 Advanced options (experts only):
 259   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 260   --enable-cross-compile   assume a cross-compiler is used
 261   --sysroot=PATH           root of cross-build tree
 262   --sysinclude=PATH        location of cross-build system headers
 263   --target-os=OS           compiler targets OS [$target_os]
 264   --target-exec=CMD        command to run executables on target
 265   --target-path=DIR        path to view of build directory on target
 266   --target-samples=DIR     path to samples directory on target
 267   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 268   --toolchain=NAME         set tool defaults according to NAME
 269   --nm=NM                  use nm tool NM [$nm_default]
 270   --ar=AR                  use archive tool AR [$ar_default]
 271   --as=AS                  use assembler AS [$as_default]
 272   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 273   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 274   --cc=CC                  use C compiler CC [$cc_default]
 275   --cxx=CXX                use C compiler CXX [$cxx_default]
 276   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 277   --ld=LD                  use linker LD [$ld_default]
 278   --host-cc=HOSTCC         use host C compiler HOSTCC
 279   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 280   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 281   --host-ld=HOSTLD         use host linker HOSTLD
 282   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 283   --host-libs=HLIBS        use libs HLIBS when linking for host
 284   --host-os=OS             compiler host OS [$target_os]
 285   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 286   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 287   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 288   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 289   --extra-version=STRING   version string suffix []
 290   --optflags=OPTFLAGS      override optimization-related compiler flags
 291   --build-suffix=SUFFIX    library name suffix []
 292   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 293   --progs-suffix=SUFFIX    program name suffix []
 294   --arch=ARCH              select architecture [$arch]
 295   --cpu=CPU                select the minimum required CPU (affects
 296                            instruction selection, may crash on older CPUs)
 297   --enable-pic             build position-independent code
 298   --enable-sram            allow use of on-chip SRAM
 299   --enable-thumb           compile for Thumb instruction set
 300   --disable-symver         disable symbol versioning
 301   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 302   --disable-safe-bitstream-reader
 303                            disable buffer boundary checking in bitreaders
 304                            (faster, but may crash)
 305   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 306   --enable-lto             use link-time optimization
 307
 308 Optimization options (experts only):
 309   --disable-asm            disable all assembler optimizations
 310   --disable-altivec        disable AltiVec optimizations
 311   --disable-amd3dnow       disable 3DNow! optimizations
 312   --disable-amd3dnowext    disable 3DNow! extended optimizations
 313   --disable-mmx            disable MMX optimizations
 314   --disable-mmxext         disable MMXEXT optimizations
 315   --disable-sse            disable SSE optimizations
 316   --disable-sse2           disable SSE2 optimizations
 317   --disable-sse3           disable SSE3 optimizations
 318   --disable-ssse3          disable SSSE3 optimizations
 319   --disable-sse4           disable SSE4 optimizations
 320   --disable-sse42          disable SSE4.2 optimizations
 321   --disable-avx            disable AVX optimizations
 322   --disable-fma4           disable FMA4 optimizations
 323   --disable-avx2           disable AVX2 optimizations
 324   --disable-armv5te        disable armv5te optimizations
 325   --disable-armv6          disable armv6 optimizations
 326   --disable-armv6t2        disable armv6t2 optimizations
 327   --disable-vfp            disable VFP optimizations
 328   --disable-neon           disable NEON optimizations
 329   --disable-vis            disable VIS optimizations
 330   --disable-inline-asm     disable use of inline assembler
 331   --disable-yasm           disable use of yasm assembler
 332   --disable-mips32r2       disable MIPS32R2 optimizations
 333   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 334   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 335   --disable-mipsfpu        disable floating point MIPS optimizations
 336   --disable-fast-unaligned consider unaligned accesses slow
 337
 338 Developer options (useful when working on FFmpeg itself):
 339   --disable-debug          disable debugging symbols
 340   --enable-debug=LEVEL     set the debug level [$debuglevel]
 341   --disable-optimizations  disable compiler optimizations
 342   --enable-extra-warnings  enable more compiler warnings
 343   --disable-stripping      disable stripping of executables and shared libraries
 344   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 345                            2 causes a slowdown at runtime.
 346   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 347   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 348                            leaks and errors, using the specified valgrind binary.
 349                            Cannot be combined with --target-exec
 350   --enable-ftrapv          Trap arithmetic overflows
 351   --samples=PATH           location of test samples for FATE, if not set use
 352                            \$FATE_SAMPLES at make invocation time.
 353   --enable-neon-clobber-test check NEON registers for clobbering (should be
 354                            used only for debugging purposes)
 355   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 356                            should be used only for debugging purposes)
 357   --enable-random          randomly enable/disable components
 358   --disable-random
 359   --enable-random=LIST     randomly enable/disable specific components or
 360   --disable-random=LIST    component groups. LIST is a comma-separated list
 361                            of NAME[:PROB] entries where NAME is a component
 362                            (group) and PROB the probability associated with
 363                            NAME (default 0.5).
 364   --random-seed=VALUE      seed value for --enable/disable-random
 365
 366 NOTE: Object files are built at the place where configure is launched.
 367 EOF
 368   exit 0
 369 }
 370
 371 quotes='""'
 372
 373 log(){
 374     echo "$@" >> $logfile
 375 }
 376
 377 log_file(){
 378     log BEGIN $1
 379     pr -n -t $1 >> $logfile
 380     log END $1
 381 }
 382
 383 echolog(){
 384     log "$@"
 385     echo "$@"
 386 }
 387
 388 warn(){
 389     log "WARNING: $*"
 390     WARNINGS="${WARNINGS}WARNING: $*\n"
 391 }
 392
 393 die(){
 394     echolog "$@"
 395     cat <<EOF
 396
 397 If you think configure made a mistake, make sure you are using the latest
 398 version from Git.  If the latest version fails, report the problem to the
 399 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 400 EOF
 401     if disabled logging; then
 402         cat <<EOF
 403 Rerun configure with logging enabled (do not use --disable-logging), and
 404 include the log this produces with your report.
 405 EOF
 406     else
 407         cat <<EOF
 408 Include the log file "$logfile" produced by configure as this will help
 409 solving the problem.
 410 EOF
 411     fi
 412     exit 1
 413 }
 414
 415 # Avoid locale weirdness, besides we really just want to translate ASCII.
 416 toupper(){
 417     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 418 }
 419
 420 tolower(){
 421     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 422 }
 423
 424 c_escape(){
 425     echo "$*" | sed 's/["\\]/\\\0/g'
 426 }
 427
 428 sh_quote(){
 429     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 430     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 431     echo "$v"
 432 }
 433
 434 cleanws(){
 435     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
 436 }
 437
 438 filter(){
 439     pat=$1
 440     shift
 441     for v; do
 442         eval "case $v in $pat) echo $v ;; esac"
 443     done
 444 }
 445
 446 filter_out(){
 447     pat=$1
 448     shift
 449     for v; do
 450         eval "case $v in $pat) ;; *) echo $v ;; esac"
 451     done
 452 }
 453
 454 map(){
 455     m=$1
 456     shift
 457     for v; do eval $m; done
 458 }
 459
 460 add_suffix(){
 461     suffix=$1
 462     shift
 463     for v; do echo ${v}${suffix}; done
 464 }
 465
 466 set_all(){
 467     value=$1
 468     shift
 469     for var in $*; do
 470         eval $var=$value
 471     done
 472 }
 473
 474 set_weak(){
 475     value=$1
 476     shift
 477     for var; do
 478         eval : \${$var:=$value}
 479     done
 480 }
 481
 482 sanitize_var_name(){
 483     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 484 }
 485
 486 set_safe(){
 487     var=$1
 488     shift
 489     eval $(sanitize_var_name "$var")='$*'
 490 }
 491
 492 get_safe(){
 493     eval echo \$$(sanitize_var_name "$1")
 494 }
 495
 496 pushvar(){
 497     for pvar in $*; do
 498         eval level=\${${pvar}_level:=0}
 499         eval ${pvar}_${level}="\$$pvar"
 500         eval ${pvar}_level=$(($level+1))
 501     done
 502 }
 503
 504 popvar(){
 505     for pvar in $*; do
 506         eval level=\${${pvar}_level:-0}
 507         test $level = 0 && continue
 508         eval level=$(($level-1))
 509         eval $pvar="\${${pvar}_${level}}"
 510         eval ${pvar}_level=$level
 511         eval unset ${pvar}_${level}
 512     done
 513 }
 514
 515 enable(){
 516     set_all yes $*
 517 }
 518
 519 disable(){
 520     set_all no $*
 521 }
 522
 523 enable_weak(){
 524     set_weak yes $*
 525 }
 526
 527 disable_weak(){
 528     set_weak no $*
 529 }
 530
 531 enable_safe(){
 532     for var; do
 533         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 534     done
 535 }
 536
 537 disable_safe(){
 538     for var; do
 539         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 540     done
 541 }
 542
 543 do_enable_deep(){
 544     for var; do
 545         enabled $var && continue
 546         eval sel="\$${var}_select"
 547         eval sgs="\$${var}_suggest"
 548         pushvar var sgs
 549         enable_deep $sel
 550         popvar sgs
 551         enable_deep_weak $sgs
 552         popvar var
 553     done
 554 }
 555
 556 enable_deep(){
 557     do_enable_deep $*
 558     enable $*
 559 }
 560
 561 enable_deep_weak(){
 562     for var; do
 563         disabled $var && continue
 564         pushvar var
 565         do_enable_deep $var
 566         popvar var
 567         enable_weak $var
 568     done
 569 }
 570
 571 enabled(){
 572     test "${1#!}" = "$1" && op== || op=!=
 573     eval test "x\$${1#!}" $op "xyes"
 574 }
 575
 576 disabled(){
 577     test "${1#!}" = "$1" && op== || op=!=
 578     eval test "x\$${1#!}" $op "xno"
 579 }
 580
 581 enabled_all(){
 582     for opt; do
 583         enabled $opt || return 1
 584     done
 585 }
 586
 587 disabled_all(){
 588     for opt; do
 589         disabled $opt || return 1
 590     done
 591 }
 592
 593 enabled_any(){
 594     for opt; do
 595         enabled $opt && return 0
 596     done
 597 }
 598
 599 disabled_any(){
 600     for opt; do
 601         disabled $opt && return 0
 602     done
 603     return 1
 604 }
 605
 606 set_default(){
 607     for opt; do
 608         eval : \${$opt:=\$${opt}_default}
 609     done
 610 }
 611
 612 is_in(){
 613     value=$1
 614     shift
 615     for var in $*; do
 616         [ $var = $value ] && return 0
 617     done
 618     return 1
 619 }
 620
 621 do_check_deps(){
 622     for cfg; do
 623         cfg="${cfg#!}"
 624         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 625         disabled ${cfg}_checking && continue
 626         enable ${cfg}_checking
 627         append allopts $cfg
 628
 629         eval dep_all="\$${cfg}_deps"
 630         eval dep_any="\$${cfg}_deps_any"
 631         eval dep_sel="\$${cfg}_select"
 632         eval dep_sgs="\$${cfg}_suggest"
 633         eval dep_ifa="\$${cfg}_if"
 634         eval dep_ifn="\$${cfg}_if_any"
 635
 636         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 637         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 638         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 639
 640         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 641         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 642         enabled_all  $dep_all || disable $cfg
 643         enabled_any  $dep_any || disable $cfg
 644         disabled_any $dep_sel && disable $cfg
 645
 646         if enabled $cfg; then
 647             enable_deep $dep_sel
 648             enable_deep_weak $dep_sgs
 649         fi
 650
 651         disable ${cfg}_checking
 652     done
 653 }
 654
 655 check_deps(){
 656     unset allopts
 657
 658     do_check_deps "$@"
 659
 660     for cfg in $allopts; do
 661         enabled $cfg || continue
 662         eval dep_extralibs="\$${cfg}_extralibs"
 663         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 664     done
 665 }
 666
 667 print_config(){
 668     pfx=$1
 669     files=$2
 670     shift 2
 671     map 'eval echo "$v \${$v:-no}"' "$@" |
 672     awk "BEGIN { split(\"$files\", files) }
 673         {
 674             c = \"$pfx\" toupper(\$1);
 675             v = \$2;
 676             sub(/yes/, 1, v);
 677             sub(/no/,  0, v);
 678             for (f in files) {
 679                 file = files[f];
 680                 if (file ~ /\\.h\$/) {
 681                     printf(\"#define %s %d\\n\", c, v) >>file;
 682                 } else if (file ~ /\\.asm\$/) {
 683                     printf(\"%%define %s %d\\n\", c, v) >>file;
 684                 } else if (file ~ /\\.mak\$/) {
 685                     n = -v ? \"\" : \"!\";
 686                     printf(\"%s%s=yes\\n\", n, c) >>file;
 687                 } else if (file ~ /\\.texi\$/) {
 688                     pre = -v ? \"\" : \"@c \";
 689                     yesno = \$2;
 690                     c2 = tolower(c);
 691                     gsub(/_/, \"-\", c2);
 692                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 693                 }
 694             }
 695         }"
 696 }
 697
 698 print_enabled(){
 699     suf=$1
 700     shift
 701     for v; do
 702         enabled $v && printf "%s\n" ${v%$suf};
 703     done
 704 }
 705
 706 append(){
 707     var=$1
 708     shift
 709     eval "$var=\"\$$var $*\""
 710 }
 711
 712 prepend(){
 713     var=$1
 714     shift
 715     eval "$var=\"$* \$$var\""
 716 }
 717
 718 add_cppflags(){
 719     append CPPFLAGS "$@"
 720 }
 721
 722 add_cflags(){
 723     append CFLAGS $($cflags_filter "$@")
 724 }
 725
 726 add_cxxflags(){
 727     append CXXFLAGS $($cflags_filter "$@")
 728 }
 729
 730 add_asflags(){
 731     append ASFLAGS $($asflags_filter "$@")
 732 }
 733
 734 add_ldflags(){
 735     append LDFLAGS $($ldflags_filter "$@")
 736 }
 737
 738 add_stripflags(){
 739     append ASMSTRIPFLAGS "$@"
 740 }
 741
 742 add_extralibs(){
 743     prepend extralibs $($ldflags_filter "$@")
 744 }
 745
 746 add_host_cppflags(){
 747     append host_cppflags "$@"
 748 }
 749
 750 add_host_cflags(){
 751     append host_cflags $($host_cflags_filter "$@")
 752 }
 753
 754 add_host_ldflags(){
 755     append host_ldflags $($host_ldflags_filter "$@")
 756 }
 757
 758 add_compat(){
 759     append compat_objs $1
 760     shift
 761     map 'add_cppflags -D$v' "$@"
 762 }
 763
 764 check_cmd(){
 765     log "$@"
 766     "$@" >> $logfile 2>&1
 767 }
 768
 769 cc_o(){
 770     eval printf '%s\\n' $CC_O
 771 }
 772
 773 cc_e(){
 774     eval printf '%s\\n' $CC_E
 775 }
 776
 777 check_cc(){
 778     log check_cc "$@"
 779     cat > $TMPC
 780     log_file $TMPC
 781     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 782 }
 783
 784 check_cxx(){
 785     log check_cxx "$@"
 786     cat > $TMPCPP
 787     log_file $TMPCPP
 788     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 789 }
 790
 791 check_cpp(){
 792     log check_cpp "$@"
 793     cat > $TMPC
 794     log_file $TMPC
 795     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 796 }
 797
 798 as_o(){
 799     eval printf '%s\\n' $AS_O
 800 }
 801
 802 check_as(){
 803     log check_as "$@"
 804     cat > $TMPS
 805     log_file $TMPS
 806     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 807 }
 808
 809 check_inline_asm(){
 810     log check_inline_asm "$@"
 811     name="$1"
 812     code="$2"
 813     shift 2
 814     disable $name
 815     check_cc "$@" <<EOF && enable $name
 816 void foo(void){ __asm__ volatile($code); }
 817 EOF
 818 }
 819
 820 check_insn(){
 821     log check_insn "$@"
 822     check_inline_asm ${1}_inline "\"$2\""
 823     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 824 }
 825
 826 check_yasm(){
 827     log check_yasm "$@"
 828     echo "$1" > $TMPS
 829     log_file $TMPS
 830     shift 1
 831     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 832 }
 833
 834 ld_o(){
 835     eval printf '%s\\n' $LD_O
 836 }
 837
 838 check_ld(){
 839     log check_ld "$@"
 840     type=$1
 841     shift 1
 842     flags=$(filter_out '-l*|*.so' $@)
 843     libs=$(filter '-l*|*.so' $@)
 844     check_$type $($cflags_filter $flags) || return
 845     flags=$($ldflags_filter $flags)
 846     libs=$($ldflags_filter $libs)
 847     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 848 }
 849
 850 print_include(){
 851     hdr=$1
 852     test "${hdr%.h}" = "${hdr}" &&
 853         echo "#include $hdr"    ||
 854         echo "#include <$hdr>"
 855 }
 856
 857 check_code(){
 858     log check_code "$@"
 859     check=$1
 860     headers=$2
 861     code=$3
 862     shift 3
 863     {
 864         for hdr in $headers; do
 865             print_include $hdr
 866         done
 867         echo "int main(void) { $code; return 0; }"
 868     } | check_$check "$@"
 869 }
 870
 871 check_cppflags(){
 872     log check_cppflags "$@"
 873     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 874 int x;
 875 EOF
 876 }
 877
 878 test_cflags(){
 879     log test_cflags "$@"
 880     set -- $($cflags_filter "$@")
 881     check_cc "$@" <<EOF
 882 int x;
 883 EOF
 884 }
 885
 886 check_cflags(){
 887     log check_cflags "$@"
 888     test_cflags "$@" && add_cflags "$@"
 889 }
 890
 891 check_cxxflags(){
 892     log check_cxxflags "$@"
 893     set -- $($cflags_filter "$@")
 894     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 895 int x;
 896 EOF
 897 }
 898
 899 test_ldflags(){
 900     log test_ldflags "$@"
 901     check_ld "cc" "$@" <<EOF
 902 int main(void){ return 0; }
 903 EOF
 904 }
 905
 906 check_ldflags(){
 907     log check_ldflags "$@"
 908     test_ldflags "$@" && add_ldflags "$@"
 909 }
 910
 911 test_stripflags(){
 912     log test_stripflags "$@"
 913     # call check_cc to get a fresh TMPO
 914     check_cc <<EOF
 915 int main(void) { return 0; }
 916 EOF
 917     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 918 }
 919
 920 check_stripflags(){
 921     log check_stripflags "$@"
 922     test_stripflags "$@" && add_stripflags "$@"
 923 }
 924
 925 check_header(){
 926     log check_header "$@"
 927     header=$1
 928     shift
 929     disable_safe $header
 930     check_cpp "$@" <<EOF && enable_safe $header
 931 #include <$header>
 932 int x;
 933 EOF
 934 }
 935
 936 check_func(){
 937     log check_func "$@"
 938     func=$1
 939     shift
 940     disable $func
 941     check_ld "cc" "$@" <<EOF && enable $func
 942 extern int $func();
 943 int main(void){ $func(); }
 944 EOF
 945 }
 946
 947 check_mathfunc(){
 948     log check_mathfunc "$@"
 949     func=$1
 950     narg=$2
 951     shift 2
 952     test $narg = 2 && args="f, g" || args="f"
 953     disable $func
 954     check_ld "cc" "$@" <<EOF && enable $func
 955 #include <math.h>
 956 float foo(float f, float g) { return $func($args); }
 957 int main(void){ return (int) foo; }
 958 EOF
 959 }
 960
 961 check_func_headers(){
 962     log check_func_headers "$@"
 963     headers=$1
 964     funcs=$2
 965     shift 2
 966     {
 967         for hdr in $headers; do
 968             print_include $hdr
 969         done
 970         for func in $funcs; do
 971             echo "long check_$func(void) { return (long) $func; }"
 972         done
 973         echo "int main(void) { return 0; }"
 974     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 975 }
 976
 977 check_class_headers_cpp(){
 978     log check_class_headers_cpp "$@"
 979     headers=$1
 980     classes=$2
 981     shift 2
 982     {
 983         for hdr in $headers; do
 984             echo "#include <$hdr>"
 985         done
 986         echo "int main(void) { "
 987         i=1
 988         for class in $classes; do
 989             echo "$class obj$i;"
 990             i=$(expr $i + 1)
 991         done
 992         echo "return 0; }"
 993     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 994 }
 995
 996 check_cpp_condition(){
 997     log check_cpp_condition "$@"
 998     header=$1
 999     condition=$2
1000     shift 2
1001     check_cpp "$@" <<EOF
1002 #include <$header>
1003 #if !($condition)
1004 #error "unsatisfied condition: $condition"
1005 #endif
1006 EOF
1007 }
1008
1009 check_lib(){
1010     log check_lib "$@"
1011     header="$1"
1012     func="$2"
1013     shift 2
1014     check_header $header && check_func $func "$@" && add_extralibs "$@"
1015 }
1016
1017 check_lib2(){
1018     log check_lib2 "$@"
1019     headers="$1"
1020     funcs="$2"
1021     shift 2
1022     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1023 }
1024
1025 check_lib_cpp(){
1026     log check_lib_cpp "$@"
1027     headers="$1"
1028     classes="$2"
1029     shift 2
1030     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1031 }
1032
1033 check_pkg_config(){
1034     log check_pkg_config "$@"
1035     pkg="$1"
1036     headers="$2"
1037     funcs="$3"
1038     shift 3
1039     check_cmd $pkg_config --exists --print-errors $pkg || return
1040     pkg_cflags=$($pkg_config --cflags $pkg)
1041     pkg_libs=$($pkg_config --libs $pkg)
1042     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1043         set_safe ${pkg}_cflags $pkg_cflags   &&
1044         set_safe ${pkg}_libs   $pkg_libs
1045 }
1046
1047 check_exec(){
1048     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1049 }
1050
1051 check_exec_crash(){
1052     code=$(cat)
1053
1054     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1055     # are safe but may not be available everywhere.  Thus we use
1056     # raise(SIGTERM) instead.  The check is run in a subshell so we
1057     # can redirect the "Terminated" message from the shell.  SIGBUS
1058     # is not defined by standard C so it is used conditionally.
1059
1060     (check_exec "$@") >> $logfile 2>&1 <<EOF
1061 #include <signal.h>
1062 static void sighandler(int sig){
1063     raise(SIGTERM);
1064 }
1065 int foo(void){
1066     $code
1067 }
1068 int (*func_ptr)(void) = foo;
1069 int main(void){
1070     signal(SIGILL, sighandler);
1071     signal(SIGFPE, sighandler);
1072     signal(SIGSEGV, sighandler);
1073 #ifdef SIGBUS
1074     signal(SIGBUS, sighandler);
1075 #endif
1076     return func_ptr();
1077 }
1078 EOF
1079 }
1080
1081 check_type(){
1082     log check_type "$@"
1083     headers=$1
1084     type=$2
1085     shift 2
1086     disable_safe "$type"
1087     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1088 }
1089
1090 check_struct(){
1091     log check_struct "$@"
1092     headers=$1
1093     struct=$2
1094     member=$3
1095     shift 3
1096     disable_safe "${struct}_${member}"
1097     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1098         enable_safe "${struct}_${member}"
1099 }
1100
1101 check_builtin(){
1102     log check_builtin "$@"
1103     name=$1
1104     headers=$2
1105     builtin=$3
1106     shift 3
1107     disable "$name"
1108     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1109 }
1110
1111 require(){
1112     name="$1"
1113     header="$2"
1114     func="$3"
1115     shift 3
1116     check_lib $header $func "$@" || die "ERROR: $name not found"
1117 }
1118
1119 require2(){
1120     name="$1"
1121     headers="$2"
1122     func="$3"
1123     shift 3
1124     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1125 }
1126
1127 require_cpp(){
1128     name="$1"
1129     headers="$2"
1130     classes="$3"
1131     shift 3
1132     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1133 }
1134
1135 require_pkg_config(){
1136     pkg="$1"
1137     check_pkg_config "$@" || die "ERROR: $pkg not found"
1138     add_cflags    $(get_safe ${pkg}_cflags)
1139     add_extralibs $(get_safe ${pkg}_libs)
1140 }
1141
1142 require_libfreetype(){
1143     log require_libfreetype "$@"
1144     pkg="freetype2"
1145     check_cmd $pkg_config --exists --print-errors $pkg \
1146       || die "ERROR: $pkg not found"
1147     pkg_cflags=$($pkg_config --cflags $pkg)
1148     pkg_libs=$($pkg_config --libs $pkg)
1149     {
1150         echo "#include <ft2build.h>"
1151         echo "#include FT_FREETYPE_H"
1152         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1153         echo "int main(void) { return 0; }"
1154     } | check_ld "cc" $pkg_cflags $pkg_libs \
1155       && set_safe ${pkg}_cflags $pkg_cflags \
1156       && set_safe ${pkg}_libs   $pkg_libs \
1157       || die "ERROR: $pkg not found"
1158     add_cflags    $(get_safe ${pkg}_cflags)
1159     add_extralibs $(get_safe ${pkg}_libs)
1160 }
1161
1162 hostcc_e(){
1163     eval printf '%s\\n' $HOSTCC_E
1164 }
1165
1166 hostcc_o(){
1167     eval printf '%s\\n' $HOSTCC_O
1168 }
1169
1170 check_host_cc(){
1171     log check_host_cc "$@"
1172     cat > $TMPC
1173     log_file $TMPC
1174     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1175 }
1176
1177 check_host_cpp(){
1178     log check_host_cpp "$@"
1179     cat > $TMPC
1180     log_file $TMPC
1181     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1182 }
1183
1184 check_host_cppflags(){
1185     log check_host_cppflags "$@"
1186     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1187 int x;
1188 EOF
1189 }
1190
1191 check_host_cflags(){
1192     log check_host_cflags "$@"
1193     set -- $($host_cflags_filter "$@")
1194     check_host_cc "$@" <<EOF && append host_cflags "$@"
1195 int x;
1196 EOF
1197 }
1198
1199 check_host_cpp_condition(){
1200     log check_host_cpp_condition "$@"
1201     header=$1
1202     condition=$2
1203     shift 2
1204     check_host_cpp "$@" <<EOF
1205 #include <$header>
1206 #if !($condition)
1207 #error "unsatisfied condition: $condition"
1208 #endif
1209 EOF
1210 }
1211
1212 apply(){
1213     file=$1
1214     shift
1215     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1216 }
1217
1218 cp_if_changed(){
1219     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1220     mkdir -p "$(dirname $2)"
1221     $cp_f "$1" "$2"
1222 }
1223
1224 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1225 # system-dependent things.
1226
1227 COMPONENT_LIST="
1228     bsfs
1229     decoders
1230     demuxers
1231     encoders
1232     filters
1233     hwaccels
1234     indevs
1235     muxers
1236     outdevs
1237     parsers
1238     protocols
1239 "
1240
1241 EXAMPLE_LIST="
1242     decoding_encoding_example
1243     demuxing_decoding_example
1244     filtering_audio_example
1245     filtering_video_example
1246     metadata_example
1247     muxing_example
1248     resampling_audio_example
1249     scaling_video_example
1250     transcode_aac_example
1251 "
1252
1253 EXTERNAL_LIBRARY_LIST="
1254     avisynth
1255     bzlib
1256     crystalhd
1257     fontconfig
1258     frei0r
1259     gnutls
1260     iconv
1261     ladspa
1262     libaacplus
1263     libass
1264     libbluray
1265     libcaca
1266     libcdio
1267     libcelt
1268     libdc1394
1269     libfaac
1270     libfdk_aac
1271     libflite
1272     libfreetype
1273     libgme
1274     libgsm
1275     libiec61883
1276     libilbc
1277     libmodplug
1278     libmp3lame
1279     libnut
1280     libopencore_amrnb
1281     libopencore_amrwb
1282     libopencv
1283     libopenjpeg
1284     libopus
1285     libpulse
1286     libquvi
1287     librtmp
1288     libschroedinger
1289     libshine
1290     libsoxr
1291     libspeex
1292     libssh
1293     libstagefright_h264
1294     libtheora
1295     libtwolame
1296     libutvideo
1297     libv4l2
1298     libvidstab
1299     libvo_aacenc
1300     libvo_amrwbenc
1301     libvorbis
1302     libvpx
1303     libwavpack
1304     libwebp
1305     libx264
1306     libxavs
1307     libxvid
1308     libzmq
1309     libzvbi
1310     openal
1311     opencl
1312     openssl
1313     x11grab
1314     zlib
1315 "
1316
1317 DOCUMENT_LIST="
1318     doc
1319     htmlpages
1320     manpages
1321     podpages
1322     txtpages
1323 "
1324
1325 HWACCEL_LIST="
1326     dxva2
1327     vaapi
1328     vda
1329     vdpau
1330     xvmc
1331 "
1332
1333 LIBRARY_LIST="
1334     avcodec
1335     avdevice
1336     avfilter
1337     avformat
1338     avresample
1339     avutil
1340     postproc
1341     swresample
1342     swscale
1343 "
1344
1345 PROGRAM_LIST="
1346     ffplay
1347     ffprobe
1348     ffserver
1349     ffmpeg
1350 "
1351
1352 CONFIG_LIST="
1353     $COMPONENT_LIST
1354     $DOCUMENT_LIST
1355     $EXAMPLE_LIST
1356     $EXTERNAL_LIBRARY_LIST
1357     $HWACCEL_LIST
1358     $LIBRARY_LIST
1359     $PROGRAM_LIST
1360     dct
1361     dwt
1362     error_resilience
1363     fast_unaligned
1364     fft
1365     ftrapv
1366     gpl
1367     gray
1368     hardcoded_tables
1369     incompatible_libav_abi
1370     incompatible_fork_abi
1371     lsp
1372     lzo
1373     mdct
1374     memalign_hack
1375     memory_poisoning
1376     neon_clobber_test
1377     network
1378     nonfree
1379     pic
1380     raise_major
1381     rdft
1382     runtime_cpudetect
1383     safe_bitstream_reader
1384     shared
1385     small
1386     sram
1387     static
1388     swscale_alpha
1389     thumb
1390     version3
1391     xmm_clobber_test
1392 "
1393
1394 THREADS_LIST='
1395     pthreads
1396     w32threads
1397     os2threads
1398 '
1399
1400 ATOMICS_LIST='
1401     atomics_gcc
1402     atomics_suncc
1403     atomics_win32
1404 '
1405
1406 ARCH_LIST='
1407     aarch64
1408     alpha
1409     arm
1410     avr32
1411     avr32_ap
1412     avr32_uc
1413     bfin
1414     ia64
1415     m68k
1416     mips
1417     mips64
1418     parisc
1419     ppc
1420     ppc64
1421     s390
1422     sh4
1423     sparc
1424     sparc64
1425     tilegx
1426     tilepro
1427     tomi
1428     x86
1429     x86_32
1430     x86_64
1431 '
1432
1433 ARCH_EXT_LIST_ARM='
1434     armv5te
1435     armv6
1436     armv6t2
1437     neon
1438     vfp
1439     vfpv3
1440 '
1441
1442 ARCH_EXT_LIST_X86='
1443     amd3dnow
1444     amd3dnowext
1445     avx
1446     avx2
1447     fma4
1448     i686
1449     mmx
1450     mmxext
1451     sse
1452     sse2
1453     sse3
1454     sse4
1455     sse42
1456     ssse3
1457 '
1458
1459 ARCH_EXT_LIST="
1460     $ARCH_EXT_LIST_ARM
1461     $ARCH_EXT_LIST_X86
1462     altivec
1463     ppc4xx
1464     vis
1465     mipsfpu
1466     mips32r2
1467     mipsdspr1
1468     mipsdspr2
1469 "
1470
1471 HAVE_LIST_CMDLINE='
1472     inline_asm
1473     symver
1474     yasm
1475 '
1476
1477 HAVE_LIST_PUB='
1478     bigendian
1479     fast_unaligned
1480     incompatible_libav_abi
1481     incompatible_fork_abi
1482 '
1483
1484 MATH_FUNCS="
1485     atanf
1486     atan2f
1487     cbrt
1488     cbrtf
1489     cosf
1490     exp2
1491     exp2f
1492     expf
1493     isinf
1494     isnan
1495     ldexpf
1496     llrint
1497     llrintf
1498     log2
1499     log2f
1500     log10f
1501     lrint
1502     lrintf
1503     powf
1504     rint
1505     round
1506     roundf
1507     sinf
1508     trunc
1509     truncf
1510 "
1511
1512 HAVE_LIST="
1513     $ARCH_EXT_LIST
1514     $(add_suffix _external $ARCH_EXT_LIST)
1515     $(add_suffix _inline   $ARCH_EXT_LIST)
1516     $HAVE_LIST_CMDLINE
1517     $HAVE_LIST_PUB
1518     $THREADS_LIST
1519     $ATOMICS_LIST
1520     $MATH_FUNCS
1521     access
1522     aligned_malloc
1523     aligned_stack
1524     alsa_asoundlib_h
1525     altivec_h
1526     arpa_inet_h
1527     asm_mod_q
1528     asm_mod_y
1529     asm_types_h
1530     atomic_cas_ptr
1531     atomics_native
1532     attribute_may_alias
1533     attribute_packed
1534     cdio_paranoia_h
1535     cdio_paranoia_paranoia_h
1536     CL_cl_h
1537     clock_gettime
1538     closesocket
1539     CommandLineToArgvW
1540     cpunop
1541     CryptGenRandom
1542     dcbzl
1543     dev_bktr_ioctl_bt848_h
1544     dev_bktr_ioctl_meteor_h
1545     dev_ic_bt8xx_h
1546     dev_video_bktr_ioctl_bt848_h
1547     dev_video_meteor_ioctl_meteor_h
1548     direct_h
1549     dlfcn_h
1550     dlopen
1551     dos_paths
1552     dxva_h
1553     ebp_available
1554     ebx_available
1555     fast_64bit
1556     fast_clz
1557     fast_cmov
1558     fcntl
1559     fork
1560     getaddrinfo
1561     gethrtime
1562     getopt
1563     GetProcessAffinityMask
1564     GetProcessMemoryInfo
1565     GetProcessTimes
1566     GetSystemTimeAsFileTime
1567     getrusage
1568     getservbyport
1569     gettimeofday
1570     glob
1571     gnu_as
1572     gnu_windres
1573     gsm_h
1574     ibm_asm
1575     inet_aton
1576     io_h
1577     inline_asm_labels
1578     isatty
1579     jack_port_get_latency_range
1580     kbhit
1581     ldbrx
1582     libc_msvcrt
1583     libdc1394_1
1584     libdc1394_2
1585     local_aligned_16
1586     local_aligned_8
1587     localtime_r
1588     loongson
1589     lzo1x_999_compress
1590     machine_ioctl_bt848_h
1591     machine_ioctl_meteor_h
1592     machine_rw_barrier
1593     makeinfo
1594     malloc_h
1595     MapViewOfFile
1596     memalign
1597     MemoryBarrier
1598     mkstemp
1599     mm_empty
1600     mmap
1601     mprotect
1602     nanosleep
1603     openjpeg_1_5_openjpeg_h
1604     PeekNamedPipe
1605     perl
1606     pod2man
1607     poll_h
1608     posix_memalign
1609     pragma_deprecated
1610     pthread_cancel
1611     rdtsc
1612     rsync_contimeout
1613     sarestart
1614     sched_getaffinity
1615     sdl
1616     SetConsoleTextAttribute
1617     setmode
1618     setrlimit
1619     Sleep
1620     sndio_h
1621     socklen_t
1622     soundcard_h
1623     strerror_r
1624     struct_addrinfo
1625     struct_group_source_req
1626     struct_ip_mreq_source
1627     struct_ipv6_mreq
1628     struct_pollfd
1629     struct_rusage_ru_maxrss
1630     struct_sctp_event_subscribe
1631     struct_sockaddr_in6
1632     struct_sockaddr_sa_len
1633     struct_sockaddr_storage
1634     struct_stat_st_mtim_tv_nsec
1635     struct_v4l2_frmivalenum_discrete
1636     symver_asm_label
1637     symver_gnu_asm
1638     sync_val_compare_and_swap
1639     sysconf
1640     sysctl
1641     sys_mman_h
1642     sys_param_h
1643     sys_resource_h
1644     sys_select_h
1645     sys_soundcard_h
1646     sys_time_h
1647     sys_un_h
1648     sys_videoio_h
1649     termios_h
1650     texi2html
1651     threads
1652     unistd_h
1653     usleep
1654     vdpau_x11
1655     vfp_args
1656     VirtualAlloc
1657     windows_h
1658     winsock2_h
1659     xform_asm
1660     xlib
1661     xmm_clobbers
1662 "
1663
1664 # options emitted with CONFIG_ prefix but not available on the command line
1665 CONFIG_EXTRA="
1666     aandcttables
1667     ac3dsp
1668     audio_frame_queue
1669     dsputil
1670     exif
1671     frame_thread_encoder
1672     gcrypt
1673     golomb
1674     gplv3
1675     h263dsp
1676     h264chroma
1677     h264dsp
1678     h264pred
1679     h264qpel
1680     hpeldsp
1681     huffman
1682     intrax8
1683     lgplv3
1684     lpc
1685     mpegaudio
1686     mpegaudiodsp
1687     mpegvideo
1688     mpegvideoenc
1689     nettle
1690     rangecoder
1691     riffdec
1692     riffenc
1693     rtpdec
1694     rtpenc_chain
1695     sinewin
1696     videodsp
1697     vp3dsp
1698 "
1699
1700 CMDLINE_SELECT="
1701     $ARCH_EXT_LIST
1702     $CONFIG_LIST
1703     $HAVE_LIST_CMDLINE
1704     $THREADS_LIST
1705     asm
1706     cross_compile
1707     debug
1708     extra_warnings
1709     logging
1710     lto
1711     optimizations
1712     rpath
1713     stripping
1714 "
1715
1716 PATHS_LIST='
1717     bindir
1718     datadir
1719     docdir
1720     incdir
1721     libdir
1722     mandir
1723     prefix
1724     shlibdir
1725 '
1726
1727 CMDLINE_SET="
1728     $PATHS_LIST
1729     ar
1730     arch
1731     as
1732     assert_level
1733     build_suffix
1734     cc
1735     cpu
1736     cross_prefix
1737     cxx
1738     dep_cc
1739     extra_version
1740     host_cc
1741     host_cflags
1742     host_ld
1743     host_ldflags
1744     host_libs
1745     host_os
1746     install
1747     ld
1748     logfile
1749     malloc_prefix
1750     nm
1751     optflags
1752     pkg_config
1753     progs_suffix
1754     random_seed
1755     samples
1756     strip
1757     sysinclude
1758     sysroot
1759     target_exec
1760     target_os
1761     target_path
1762     target_samples
1763     tempprefix
1764     toolchain
1765     valgrind
1766     yasmexe
1767 "
1768
1769 CMDLINE_APPEND="
1770     extra_cflags
1771     extra_cxxflags
1772     host_cppflags
1773 "
1774
1775 # code dependency declarations
1776
1777 # architecture extensions
1778
1779 armv5te_deps="arm"
1780 armv6_deps="arm"
1781 armv6t2_deps="arm"
1782 neon_deps_any="aarch64 arm"
1783 vfp_deps_any="aarch64 arm"
1784 vfpv3_deps="vfp"
1785
1786 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1787
1788 mipsfpu_deps="mips"
1789 mips32r2_deps="mips"
1790 mipsdspr1_deps="mips"
1791 mipsdspr2_deps="mips"
1792
1793 altivec_deps="ppc"
1794 ppc4xx_deps="ppc"
1795
1796 vis_deps="sparc"
1797
1798 cpunop_deps="i686"
1799 x86_64_select="i686"
1800 x86_64_suggest="fast_cmov"
1801
1802 amd3dnow_deps="mmx"
1803 amd3dnowext_deps="amd3dnow"
1804 mmx_deps="x86"
1805 mmxext_deps="mmx"
1806 sse_deps="mmxext"
1807 sse2_deps="sse"
1808 sse3_deps="sse2"
1809 ssse3_deps="sse3"
1810 sse4_deps="ssse3"
1811 sse42_deps="sse4"
1812 avx_deps="sse42"
1813 fma4_deps="avx"
1814 avx2_deps="avx"
1815
1816 mmx_external_deps="yasm"
1817 mmx_inline_deps="inline_asm"
1818 mmx_suggest="mmx_external mmx_inline"
1819
1820 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1821     eval dep=\$${ext}_deps
1822     eval ${ext}_external_deps='"${dep}_external"'
1823     eval ${ext}_inline_deps='"${dep}_inline"'
1824     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1825 done
1826
1827 aligned_stack_if_any="aarch64 ppc x86"
1828 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1829 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1830 fast_unaligned_if_any="aarch64 ppc x86"
1831
1832 need_memalign="altivec neon sse"
1833
1834 # system capabilities
1835 log2_deps="!libc_msvcrt"
1836
1837 symver_if_any="symver_asm_label symver_gnu_asm"
1838
1839 # threading support
1840 atomics_gcc_if="sync_val_compare_and_swap"
1841 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1842 atomics_win32_if="MemoryBarrier"
1843 atomics_native_if_any="$ATOMICS_LIST"
1844 threads_if_any="$THREADS_LIST"
1845
1846 # subsystems
1847 dct_select="rdft"
1848 error_resilience_select="dsputil"
1849 frame_thread_encoder_deps="encoders threads"
1850 lpc_select="dsputil"
1851 mdct_select="fft"
1852 rdft_select="fft"
1853 mpegaudio_select="mpegaudiodsp"
1854 mpegaudiodsp_select="dct"
1855 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1856 mpegvideoenc_select="mpegvideo"
1857
1858 # decoders / encoders
1859 aac_decoder_select="mdct sinewin"
1860 aac_encoder_select="audio_frame_queue mdct sinewin"
1861 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1862 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1863 ac3_encoder_select="mdct ac3dsp dsputil"
1864 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1865 aic_decoder_select="dsputil golomb"
1866 alac_encoder_select="lpc"
1867 als_decoder_select="dsputil"
1868 amrnb_decoder_select="lsp"
1869 amrwb_decoder_select="lsp"
1870 amv_decoder_select="dsputil hpeldsp exif"
1871 amv_encoder_select="aandcttables"
1872 ape_decoder_select="dsputil"
1873 asv1_decoder_select="dsputil"
1874 asv1_encoder_select="dsputil"
1875 asv2_decoder_select="dsputil"
1876 asv2_encoder_select="dsputil"
1877 atrac1_decoder_select="mdct sinewin"
1878 atrac3_decoder_select="mdct"
1879 atrac3p_decoder_select="mdct sinewin"
1880 avrn_decoder_select="exif"
1881 bink_decoder_select="dsputil hpeldsp"
1882 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1883 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1884 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1885 cllc_decoder_select="dsputil"
1886 comfortnoise_encoder_select="lpc"
1887 cook_decoder_select="dsputil mdct sinewin"
1888 cscd_decoder_select="lzo"
1889 cscd_decoder_suggest="zlib"
1890 dca_decoder_select="mdct"
1891 dirac_decoder_select="dsputil dwt golomb videodsp"
1892 dnxhd_decoder_select="dsputil"
1893 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1894 dvvideo_decoder_select="dsputil"
1895 dvvideo_encoder_select="dsputil"
1896 dxa_decoder_select="zlib"
1897 eac3_decoder_select="ac3_decoder"
1898 eac3_encoder_select="ac3_encoder"
1899 eamad_decoder_select="aandcttables dsputil mpegvideo"
1900 eatgq_decoder_select="aandcttables"
1901 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1902 exr_decoder_select="zlib"
1903 ffv1_decoder_select="dsputil golomb rangecoder"
1904 ffv1_encoder_select="dsputil rangecoder"
1905 ffvhuff_decoder_select="dsputil"
1906 ffvhuff_encoder_select="dsputil huffman"
1907 flac_decoder_select="golomb"
1908 flac_encoder_select="dsputil golomb lpc"
1909 flashsv_decoder_select="zlib"
1910 flashsv_encoder_select="zlib"
1911 flashsv2_encoder_select="zlib"
1912 flashsv2_decoder_select="zlib"
1913 flv_decoder_select="h263_decoder"
1914 flv_encoder_select="h263_encoder"
1915 fourxm_decoder_select="dsputil"
1916 fraps_decoder_select="dsputil huffman"
1917 g2m_decoder_select="dsputil zlib"
1918 g729_decoder_select="dsputil"
1919 h261_decoder_select="error_resilience mpegvideo"
1920 h261_encoder_select="aandcttables mpegvideoenc"
1921 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1922 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1923 h263i_decoder_select="h263_decoder"
1924 h263p_encoder_select="h263_encoder"
1925 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1926 h264_decoder_suggest="error_resilience"
1927 hevc_decoder_select="dsputil golomb videodsp"
1928 huffyuv_decoder_select="dsputil"
1929 huffyuv_encoder_select="dsputil huffman"
1930 iac_decoder_select="dsputil fft mdct sinewin"
1931 imc_decoder_select="dsputil fft mdct sinewin"
1932 indeo3_decoder_select="hpeldsp"
1933 interplay_video_decoder_select="hpeldsp"
1934 jpegls_decoder_select="dsputil golomb hpeldsp exif"
1935 jpegls_encoder_select="golomb"
1936 jv_decoder_select="dsputil"
1937 lagarith_decoder_select="dsputil"
1938 ljpeg_encoder_select="aandcttables mpegvideoenc"
1939 loco_decoder_select="golomb"
1940 mdec_decoder_select="dsputil error_resilience mpegvideo"
1941 metasound_decoder_select="lsp mdct sinewin"
1942 mimic_decoder_select="dsputil hpeldsp"
1943 mjpeg_decoder_select="dsputil hpeldsp exif"
1944 mjpegb_decoder_select="dsputil hpeldsp exif"
1945 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1946 mlp_decoder_select="dsputil mlp_parser"
1947 motionpixels_decoder_select="dsputil"
1948 mp1_decoder_select="mpegaudio"
1949 mp1float_decoder_select="mpegaudio"
1950 mp2_decoder_select="mpegaudio"
1951 mp2float_decoder_select="mpegaudio"
1952 mp3_decoder_select="mpegaudio"
1953 mp3adu_decoder_select="mpegaudio"
1954 mp3adufloat_decoder_select="mpegaudio"
1955 mp3float_decoder_select="mpegaudio"
1956 mp3on4_decoder_select="mpegaudio"
1957 mp3on4float_decoder_select="mpegaudio"
1958 mpc7_decoder_select="dsputil mpegaudiodsp"
1959 mpc8_decoder_select="dsputil mpegaudiodsp"
1960 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1961 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1962 mpeg1video_decoder_select="error_resilience mpegvideo"
1963 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1964 mpeg2video_decoder_select="error_resilience mpegvideo"
1965 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1966 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1967 mpeg4_encoder_select="h263_encoder"
1968 msmpeg4v1_decoder_select="h263_decoder"
1969 msmpeg4v2_decoder_select="h263_decoder"
1970 msmpeg4v2_encoder_select="h263_encoder"
1971 msmpeg4v3_decoder_select="h263_decoder"
1972 msmpeg4v3_encoder_select="h263_encoder"
1973 mss2_decoder_select="error_resilience vc1_decoder"
1974 mxpeg_decoder_select="dsputil hpeldsp exif"
1975 nellymoser_decoder_select="mdct sinewin"
1976 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1977 nuv_decoder_select="dsputil lzo"
1978 png_decoder_select="zlib"
1979 png_encoder_select="dsputil zlib"
1980 prores_decoder_select="dsputil"
1981 prores_encoder_select="dsputil"
1982 qcelp_decoder_select="lsp"
1983 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1984 ra_144_encoder_select="audio_frame_queue lpc"
1985 ralf_decoder_select="golomb"
1986 rtjpeg_decoder_select="dsputil"
1987 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1988 rv10_encoder_select="h263_encoder"
1989 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1990 rv20_encoder_select="h263_encoder"
1991 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1992 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1993 shorten_decoder_select="golomb"
1994 sipr_decoder_select="lsp"
1995 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1996 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1997 sonic_decoder_select="golomb"
1998 sonic_encoder_select="golomb"
1999 sonic_ls_encoder_select="golomb"
2000 sp5x_decoder_select="dsputil hpeldsp exif"
2001 svq1_decoder_select="hpeldsp"
2002 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2003 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
2004 svq3_decoder_suggest="error_resilience zlib"
2005 tak_decoder_select="dsputil"
2006 theora_decoder_select="vp3_decoder"
2007 tiff_decoder_suggest="zlib"
2008 tiff_encoder_suggest="zlib"
2009 thp_decoder_select="dsputil hpeldsp exif"
2010 truehd_decoder_select="mlp_parser"
2011 truemotion2_decoder_select="dsputil"
2012 truespeech_decoder_select="dsputil"
2013 tscc_decoder_select="zlib"
2014 twinvq_decoder_select="mdct lsp sinewin"
2015 utvideo_decoder_select="dsputil"
2016 utvideo_encoder_select="dsputil huffman"
2017 vble_decoder_select="dsputil"
2018 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
2019 vc1image_decoder_select="vc1_decoder"
2020 vorbis_decoder_select="mdct"
2021 vorbis_encoder_select="mdct"
2022 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2023 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2024 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2025 vp6a_decoder_select="vp6_decoder"
2026 vp6f_decoder_select="vp6_decoder"
2027 vp8_decoder_select="h264pred videodsp"
2028 vp9_decoder_select="videodsp"
2029 webp_decoder_select="vp8_decoder"
2030 wmapro_decoder_select="mdct sinewin"
2031 wmav1_decoder_select="mdct sinewin"
2032 wmav1_encoder_select="mdct sinewin"
2033 wmav2_decoder_select="mdct sinewin"
2034 wmav2_encoder_select="mdct sinewin"
2035 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2036 wmv1_decoder_select="h263_decoder"
2037 wmv1_encoder_select="h263_encoder"
2038 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2039 wmv2_encoder_select="h263_encoder"
2040 wmv3_decoder_select="vc1_decoder"
2041 wmv3image_decoder_select="wmv3_decoder"
2042 zerocodec_decoder_select="zlib"
2043 zlib_decoder_select="zlib"
2044 zlib_encoder_select="zlib"
2045 zmbv_decoder_select="zlib"
2046 zmbv_encoder_select="zlib"
2047
2048 # hardware accelerators
2049 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2050 dxva2_deps="dxva2api_h"
2051 vaapi_deps="va_va_h"
2052 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2053 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2054 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2055 xvmc_deps="X11_extensions_XvMClib_h"
2056
2057 h263_vaapi_hwaccel_deps="vaapi"
2058 h263_vaapi_hwaccel_select="h263_decoder"
2059 h263_vdpau_hwaccel_deps="vdpau"
2060 h263_vdpau_hwaccel_select="h263_decoder"
2061 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2062 h264_dxva2_hwaccel_deps="dxva2"
2063 h264_dxva2_hwaccel_select="h264_decoder"
2064 h264_vaapi_hwaccel_deps="vaapi"
2065 h264_vaapi_hwaccel_select="h264_decoder"
2066 h264_vda_decoder_deps="vda"
2067 h264_vda_decoder_select="h264_decoder"
2068 h264_vda_hwaccel_deps="vda"
2069 h264_vda_hwaccel_select="h264_decoder"
2070 h264_vdpau_decoder_deps="vdpau"
2071 h264_vdpau_decoder_select="h264_decoder"
2072 h264_vdpau_hwaccel_deps="vdpau"
2073 h264_vdpau_hwaccel_select="h264_decoder"
2074 mpeg_vdpau_decoder_deps="vdpau"
2075 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2076 mpeg_xvmc_hwaccel_deps="xvmc"
2077 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2078 mpeg1_vdpau_decoder_deps="vdpau"
2079 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2080 mpeg1_vdpau_hwaccel_deps="vdpau"
2081 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2082 mpeg1_xvmc_hwaccel_deps="xvmc"
2083 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2084 mpeg2_crystalhd_decoder_select="crystalhd"
2085 mpeg2_dxva2_hwaccel_deps="dxva2"
2086 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2087 mpeg2_vaapi_hwaccel_deps="vaapi"
2088 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2089 mpeg2_vdpau_hwaccel_deps="vdpau"
2090 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2091 mpeg2_xvmc_hwaccel_deps="xvmc"
2092 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2093 mpeg4_crystalhd_decoder_select="crystalhd"
2094 mpeg4_vaapi_hwaccel_deps="vaapi"
2095 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2096 mpeg4_vdpau_decoder_deps="vdpau"
2097 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2098 mpeg4_vdpau_hwaccel_deps="vdpau"
2099 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2100 msmpeg4_crystalhd_decoder_select="crystalhd"
2101 vc1_crystalhd_decoder_select="crystalhd"
2102 vc1_dxva2_hwaccel_deps="dxva2"
2103 vc1_dxva2_hwaccel_select="vc1_decoder"
2104 vc1_vaapi_hwaccel_deps="vaapi"
2105 vc1_vaapi_hwaccel_select="vc1_decoder"
2106 vc1_vdpau_decoder_deps="vdpau"
2107 vc1_vdpau_decoder_select="vc1_decoder"
2108 vc1_vdpau_hwaccel_deps="vdpau"
2109 vc1_vdpau_hwaccel_select="vc1_decoder"
2110 wmv3_crystalhd_decoder_select="crystalhd"
2111 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2112 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2113 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2114 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2115
2116 # parsers
2117 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
2118 hevc_parser_select="hevc_decoder"
2119 mpeg4video_parser_select="error_resilience mpegvideo"
2120 mpegvideo_parser_select="error_resilience mpegvideo"
2121 vc1_parser_select="mpegvideo"
2122
2123 # external libraries
2124 libaacplus_encoder_deps="libaacplus"
2125 libcelt_decoder_deps="libcelt"
2126 libfaac_encoder_deps="libfaac"
2127 libfaac_encoder_select="audio_frame_queue"
2128 libfdk_aac_decoder_deps="libfdk_aac"
2129 libfdk_aac_encoder_deps="libfdk_aac"
2130 libfdk_aac_encoder_select="audio_frame_queue"
2131 libgme_demuxer_deps="libgme"
2132 libgsm_decoder_deps="libgsm"
2133 libgsm_encoder_deps="libgsm"
2134 libgsm_ms_decoder_deps="libgsm"
2135 libgsm_ms_encoder_deps="libgsm"
2136 libilbc_decoder_deps="libilbc"
2137 libilbc_encoder_deps="libilbc"
2138 libmodplug_demuxer_deps="libmodplug"
2139 libmp3lame_encoder_deps="libmp3lame"
2140 libmp3lame_encoder_select="audio_frame_queue"
2141 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2142 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2143 libopencore_amrnb_encoder_select="audio_frame_queue"
2144 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2145 libopenjpeg_decoder_deps="libopenjpeg"
2146 libopenjpeg_encoder_deps="libopenjpeg"
2147 libopus_decoder_deps="libopus"
2148 libopus_encoder_deps="libopus"
2149 libopus_encoder_select="audio_frame_queue"
2150 libquvi_demuxer_deps="libquvi"
2151 libschroedinger_decoder_deps="libschroedinger"
2152 libschroedinger_encoder_deps="libschroedinger"
2153 libshine_encoder_deps="libshine"
2154 libshine_encoder_select="audio_frame_queue"
2155 libspeex_decoder_deps="libspeex"
2156 libspeex_encoder_deps="libspeex"
2157 libspeex_encoder_select="audio_frame_queue"
2158 libstagefright_h264_decoder_deps="libstagefright_h264"
2159 libtheora_encoder_deps="libtheora"
2160 libtwolame_encoder_deps="libtwolame"
2161 libvo_aacenc_encoder_deps="libvo_aacenc"
2162 libvo_aacenc_encoder_select="audio_frame_queue"
2163 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2164 libvorbis_decoder_deps="libvorbis"
2165 libvorbis_encoder_deps="libvorbis"
2166 libvorbis_encoder_select="audio_frame_queue"
2167 libvpx_vp8_decoder_deps="libvpx"
2168 libvpx_vp8_encoder_deps="libvpx"
2169 libvpx_vp9_decoder_deps="libvpx"
2170 libvpx_vp9_encoder_deps="libvpx"
2171 libwavpack_encoder_deps="libwavpack"
2172 libwebp_encoder_deps="libwebp"
2173 libx264_encoder_deps="libx264"
2174 libx264rgb_encoder_deps="libx264"
2175 libxavs_encoder_deps="libxavs"
2176 libxvid_encoder_deps="libxvid"
2177 libutvideo_decoder_deps="libutvideo"
2178 libutvideo_encoder_deps="libutvideo"
2179 libzvbi_teletext_decoder_deps="libzvbi"
2180
2181 # demuxers / muxers
2182 ac3_demuxer_select="ac3_parser"
2183 asf_demuxer_select="riffdec"
2184 asf_muxer_select="riffenc"
2185 asf_stream_muxer_select="asf_muxer"
2186 avi_demuxer_select="riffdec"
2187 avi_muxer_select="riffenc"
2188 avisynth_demuxer_deps="avisynth"
2189 avisynth_demuxer_select="riffdec"
2190 caf_demuxer_select="riffdec"
2191 dirac_demuxer_select="dirac_parser"
2192 dts_demuxer_select="dca_parser"
2193 dtshd_demuxer_select="dca_parser"
2194 dxa_demuxer_select="riffdec"
2195 eac3_demuxer_select="ac3_parser"
2196 f4v_muxer_select="mov_muxer"
2197 flac_demuxer_select="flac_parser"
2198 hds_muxer_select="flv_muxer"
2199 hls_muxer_select="mpegts_muxer"
2200 ipod_muxer_select="mov_muxer"
2201 ismv_muxer_select="mov_muxer"
2202 libnut_demuxer_deps="libnut"
2203 libnut_muxer_deps="libnut"
2204 matroska_audio_muxer_select="matroska_muxer"
2205 matroska_demuxer_select="riffdec"
2206 matroska_demuxer_suggest="bzlib lzo zlib"
2207 matroska_muxer_select="riffenc"
2208 mmf_muxer_select="riffenc"
2209 mov_demuxer_select="riffdec"
2210 mov_demuxer_suggest="zlib"
2211 mov_muxer_select="riffenc rtpenc_chain"
2212 mp3_demuxer_select="mpegaudio_parser"
2213 mp4_muxer_select="mov_muxer"
2214 mpegts_muxer_select="adts_muxer latm_muxer"
2215 mpegtsraw_demuxer_select="mpegts_demuxer"
2216 mxf_d10_muxer_select="mxf_muxer"
2217 nut_muxer_select="riffenc"
2218 nuv_demuxer_select="riffdec"
2219 ogg_demuxer_select="golomb"
2220 psp_muxer_select="mov_muxer"
2221 rtp_demuxer_select="sdp_demuxer"
2222 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2223 rtsp_demuxer_select="http_protocol rtpdec"
2224 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2225 sap_demuxer_select="sdp_demuxer"
2226 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2227 sdp_demuxer_select="rtpdec"
2228 smoothstreaming_muxer_select="ismv_muxer"
2229 spdif_muxer_select="aac_parser"
2230 tak_demuxer_select="tak_parser"
2231 tg2_muxer_select="mov_muxer"
2232 tgp_muxer_select="mov_muxer"
2233 vobsub_demuxer_select="mpegps_demuxer"
2234 w64_demuxer_select="wav_demuxer"
2235 w64_muxer_select="wav_muxer"
2236 wav_demuxer_select="riffdec"
2237 wav_muxer_select="riffenc"
2238 webm_muxer_select="riffenc"
2239 wtv_demuxer_select="riffdec"
2240 xmv_demuxer_select="riffdec"
2241 xwma_demuxer_select="riffdec"
2242
2243 # indevs / outdevs
2244 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2245 alsa_outdev_deps="alsa_asoundlib_h"
2246 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2247 caca_outdev_deps="libcaca"
2248 dshow_indev_deps="IBaseFilter"
2249 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2250 dv1394_indev_deps="dv1394"
2251 dv1394_indev_select="dv_demuxer"
2252 fbdev_indev_deps="linux_fb_h"
2253 fbdev_outdev_deps="linux_fb_h"
2254 iec61883_indev_deps="libiec61883"
2255 jack_indev_deps="jack_jack_h sem_timedwait"
2256 lavfi_indev_deps="avfilter"
2257 libcdio_indev_deps="libcdio"
2258 libdc1394_indev_deps="libdc1394"
2259 libv4l2_indev_deps="libv4l2"
2260 openal_indev_deps="openal"
2261 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2262 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2263 pulse_indev_deps="libpulse"
2264 pulse_outdev_deps="libpulse"
2265 sdl_outdev_deps="sdl"
2266 sndio_indev_deps="sndio_h"
2267 sndio_outdev_deps="sndio_h"
2268 v4l_indev_deps="linux_videodev_h"
2269 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2270 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2271 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2272 vfwcap_indev_extralibs="-lavicap32"
2273 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2274 xv_outdev_extralibs="-lXv -lX11 -lXext"
2275 x11grab_indev_deps="x11grab"
2276
2277 # protocols
2278 bluray_protocol_deps="libbluray"
2279 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2280 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2281 ffrtmpcrypt_protocol_select="tcp_protocol"
2282 ffrtmphttp_protocol_deps="!librtmp_protocol"
2283 ffrtmphttp_protocol_select="http_protocol"
2284 ftp_protocol_select="tcp_protocol"
2285 gopher_protocol_select="network"
2286 httpproxy_protocol_select="tcp_protocol"
2287 http_protocol_select="tcp_protocol"
2288 https_protocol_select="tls_protocol"
2289 librtmp_protocol_deps="librtmp"
2290 librtmpe_protocol_deps="librtmp"
2291 librtmps_protocol_deps="librtmp"
2292 librtmpt_protocol_deps="librtmp"
2293 librtmpte_protocol_deps="librtmp"
2294 libssh_protocol_deps="libssh"
2295 mmsh_protocol_select="http_protocol"
2296 mmst_protocol_select="network"
2297 rtmp_protocol_deps="!librtmp_protocol"
2298 rtmp_protocol_select="tcp_protocol"
2299 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2300 rtmps_protocol_deps="!librtmp_protocol"
2301 rtmps_protocol_select="tls_protocol"
2302 rtmpt_protocol_select="ffrtmphttp_protocol"
2303 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2304 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2305 rtp_protocol_select="udp_protocol"
2306 sctp_protocol_deps="struct_sctp_event_subscribe"
2307 sctp_protocol_select="network"
2308 srtp_protocol_select="rtp_protocol"
2309 tcp_protocol_select="network"
2310 tls_protocol_deps_any="openssl gnutls"
2311 tls_protocol_select="tcp_protocol"
2312 udp_protocol_select="network"
2313 unix_protocol_deps="sys_un_h"
2314 unix_protocol_select="network"
2315
2316 # filters
2317 aconvert_filter_deps="swresample"
2318 amovie_filter_deps="avcodec avformat"
2319 aresample_filter_deps="swresample"
2320 ass_filter_deps="libass"
2321 asyncts_filter_deps="avresample"
2322 atempo_filter_deps="avcodec"
2323 atempo_filter_select="rdft"
2324 azmq_filter_deps="libzmq"
2325 blackframe_filter_deps="gpl"
2326 boxblur_filter_deps="gpl"
2327 colormatrix_filter_deps="gpl"
2328 cropdetect_filter_deps="gpl"
2329 dctdnoiz_filter_deps="avcodec"
2330 dctdnoiz_filter_select="fft"
2331 delogo_filter_deps="gpl"
2332 deshake_filter_deps="avcodec"
2333 deshake_filter_select="dsputil"
2334 drawtext_filter_deps="libfreetype"
2335 ebur128_filter_deps="gpl"
2336 flite_filter_deps="libflite"
2337 frei0r_filter_deps="frei0r dlopen"
2338 frei0r_filter_extralibs='$ldl'
2339 frei0r_src_filter_deps="frei0r dlopen"
2340 frei0r_src_filter_extralibs='$ldl'
2341 geq_filter_deps="gpl"
2342 histeq_filter_deps="gpl"
2343 hqdn3d_filter_deps="gpl"
2344 interlace_filter_deps="gpl"
2345 kerndeint_filter_deps="gpl"
2346 ladspa_filter_deps="ladspa dlopen"
2347 mcdeint_filter_deps="avcodec gpl"
2348 movie_filter_deps="avcodec avformat"
2349 mp_filter_deps="gpl avcodec swscale inline_asm"
2350 mpdecimate_filter_deps="gpl avcodec"
2351 mptestsrc_filter_deps="gpl"
2352 negate_filter_deps="lut_filter"
2353 perspective_filter_deps="gpl"
2354 resample_filter_deps="avresample"
2355 ocv_filter_deps="libopencv"
2356 owdenoise_filter_deps="gpl"
2357 pan_filter_deps="swresample"
2358 phase_filter_deps="gpl"
2359 pp_filter_deps="gpl postproc"
2360 pullup_filter_deps="gpl"
2361 removelogo_filter_deps="avcodec avformat swscale"
2362 sab_filter_deps="gpl swscale"
2363 scale_filter_deps="swscale"
2364 smartblur_filter_deps="gpl swscale"
2365 showspectrum_filter_deps="avcodec"
2366 showspectrum_filter_select="rdft"
2367 spp_filter_deps="gpl avcodec"
2368 spp_filter_select="fft"
2369 stereo3d_filter_deps="gpl"
2370 subtitles_filter_deps="avformat avcodec libass"
2371 super2xsai_filter_deps="gpl"
2372 tinterlace_filter_deps="gpl"
2373 vidstabdetect_filter_deps="libvidstab"
2374 vidstabtransform_filter_deps="libvidstab"
2375 pixfmts_super2xsai_test_deps="super2xsai_filter"
2376 tinterlace_merge_test_deps="tinterlace_filter"
2377 tinterlace_pad_test_deps="tinterlace_filter"
2378 zmq_filter_deps="libzmq"
2379
2380 # examples
2381 decoding_encoding_example_deps="avcodec avutil"
2382 demuxing_decoding_example_deps="avcodec avformat avutil"
2383 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2384 filtering_video_example_deps="avfilter avcodec avformat avutil"
2385 metadata_example_deps="avformat avutil"
2386 muxing_example_deps="avcodec avformat avutil swscale"
2387 resampling_audio_example_deps="avutil swresample"
2388 scaling_video_example_deps="avutil swscale"
2389 transcode_aac_example_deps="avcodec avformat swresample"
2390
2391 # libraries
2392 avcodec_deps="avutil"
2393 avdevice_deps="avutil avcodec avformat"
2394 avfilter_deps="avutil"
2395 avformat_deps="avutil avcodec"
2396 avresample_deps="avutil"
2397 postproc_deps="avutil gpl"
2398 swscale_deps="avutil"
2399
2400 # programs
2401 ffmpeg_deps="avcodec avfilter avformat swresample"
2402 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2403                null_filter
2404                setpts_filter trim_filter"
2405 ffplay_deps="avcodec avformat swscale swresample sdl"
2406 ffplay_select="rdft crop_filter"
2407 ffprobe_deps="avcodec avformat"
2408 ffserver_deps="avformat fork sarestart"
2409 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2410 ffserver_extralibs='$ldl'
2411
2412 # documentation
2413 podpages_deps="perl"
2414 manpages_deps="perl pod2man"
2415 htmlpages_deps="perl texi2html"
2416 txtpages_deps="perl makeinfo"
2417 doc_deps_any="manpages htmlpages podpages txtpages"
2418
2419 # default parameters
2420
2421 logfile="config.log"
2422
2423 # installation paths
2424 prefix_default="/usr/local"
2425 bindir_default='${prefix}/bin'
2426 datadir_default='${prefix}/share/ffmpeg'
2427 docdir_default='${prefix}/share/doc/ffmpeg'
2428 incdir_default='${prefix}/include'
2429 libdir_default='${prefix}/lib'
2430 mandir_default='${prefix}/share/man'
2431 shlibdir_default="$libdir_default"
2432
2433 # toolchain
2434 ar_default="ar"
2435 cc_default="gcc"
2436 cxx_default="g++"
2437 host_cc_default="gcc"
2438 cp_f="cp -f"
2439 install="install"
2440 ln_s="ln -s -f"
2441 nm_default="nm -g"
2442 objformat="elf"
2443 pkg_config_default=pkg-config
2444 ranlib="ranlib"
2445 strip_default="strip"
2446 yasmexe_default="yasm"
2447 windres_default="windres"
2448
2449 nogas=":"
2450
2451 # machine
2452 arch_default=$(uname -m)
2453 cpu="generic"
2454
2455 # OS
2456 target_os_default=$(tolower $(uname -s))
2457 host_os=$target_os_default
2458
2459 # configurable options
2460 enable $PROGRAM_LIST
2461 enable $DOCUMENT_LIST
2462 enable $EXAMPLE_LIST
2463 enable $(filter_out avresample $LIBRARY_LIST)
2464 enable stripping
2465
2466 enable asm
2467 enable debug
2468 enable doc
2469 enable optimizations
2470 enable runtime_cpudetect
2471 enable safe_bitstream_reader
2472 enable static
2473 enable swscale_alpha
2474
2475 # Enable hwaccels by default.
2476 enable dxva2 vaapi vdpau xvmc
2477
2478 # build settings
2479 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2480 LIBPREF="lib"
2481 LIBSUF=".a"
2482 FULLNAME='$(NAME)$(BUILDSUF)'
2483 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2484 SLIBPREF="lib"
2485 SLIBSUF=".so"
2486 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2487 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2488 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2489 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2490 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2491 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2492
2493 asflags_filter=echo
2494 cflags_filter=echo
2495 ldflags_filter=echo
2496
2497 AS_C='-c'
2498 AS_O='-o $@'
2499 CC_C='-c'
2500 CC_E='-E -o $@'
2501 CC_O='-o $@'
2502 CXX_C='-c'
2503 CXX_O='-o $@'
2504 LD_O='-o $@'
2505 LD_LIB='-l%'
2506 LD_PATH='-L'
2507 HOSTCC_C='-c'
2508 HOSTCC_E='-E -o $@'
2509 HOSTCC_O='-o $@'
2510 HOSTLD_O='-o $@'
2511
2512 host_cflags='-O3'
2513 host_cppflags='-D_ISOC99_SOURCE'
2514 host_libs='-lm'
2515 host_cflags_filter=echo
2516 host_ldflags_filter=echo
2517
2518 target_path='$(CURDIR)'
2519
2520 # since the object filename is not given with the -MM flag, the compiler
2521 # is only able to print the basename, and we must add the path ourselves
2522 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2523 DEPFLAGS='-MM'
2524
2525 # find source path
2526 if test -f configure; then
2527     source_path=.
2528 else
2529     source_path=$(cd $(dirname "$0"); pwd)
2530     echo "$source_path" | grep -q '[[:blank:]]' &&
2531         die "Out of tree builds are impossible with whitespace in source path."
2532     test -e "$source_path/config.h" &&
2533         die "Out of tree builds are impossible with config.h in source dir."
2534 fi
2535
2536 for v in "$@"; do
2537     r=${v#*=}
2538     l=${v%"$r"}
2539     r=$(sh_quote "$r")
2540     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2541 done
2542
2543 find_things(){
2544     thing=$1
2545     pattern=$2
2546     file=$source_path/$3
2547     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2548 }
2549
2550 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2551 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2552 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2553 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2554 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2555 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2556 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2557 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2558 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2559 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2560 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2561
2562 ALL_COMPONENTS="
2563     $BSF_LIST
2564     $DECODER_LIST
2565     $DEMUXER_LIST
2566     $ENCODER_LIST
2567     $FILTER_LIST
2568     $HWACCEL_LIST
2569     $INDEV_LIST
2570     $MUXER_LIST
2571     $OUTDEV_LIST
2572     $PARSER_LIST
2573     $PROTOCOL_LIST
2574 "
2575
2576 for n in $COMPONENT_LIST; do
2577     v=$(toupper ${n%s})_LIST
2578     eval enable \$$v
2579     eval ${n}_if_any="\$$v"
2580 done
2581
2582 enable $ARCH_EXT_LIST
2583
2584 die_unknown(){
2585     echo "Unknown option \"$1\"."
2586     echo "See $0 --help for available options."
2587     exit 1
2588 }
2589
2590 print_3_columns() {
2591     cat | tr ' ' '\n' | sort | pr -r -3 -t
2592 }
2593
2594 show_list() {
2595     suffix=_$1
2596     shift
2597     echo $* | sed s/$suffix//g | print_3_columns
2598     exit 0
2599 }
2600
2601 rand_list(){
2602     IFS=', '
2603     set -- $*
2604     unset IFS
2605     for thing; do
2606         comp=${thing%:*}
2607         prob=${thing#$comp}
2608         prob=${prob#:}
2609         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2610         echo "prob ${prob:-0.5}"
2611         printf '%s\n' $comp
2612     done
2613 }
2614
2615 do_random(){
2616     action=$1
2617     shift
2618     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2619     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2620 }
2621
2622 for opt do
2623     optval="${opt#*=}"
2624     case "$opt" in
2625         --extra-ldflags=*)
2626             add_ldflags $optval
2627         ;;
2628         --extra-libs=*)
2629             add_extralibs $optval
2630         ;;
2631         --disable-devices)
2632             disable $INDEV_LIST $OUTDEV_LIST
2633         ;;
2634         --enable-debug=*)
2635             debuglevel="$optval"
2636         ;;
2637         --disable-programs)
2638             disable $PROGRAM_LIST
2639         ;;
2640         --disable-everything)
2641             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2642         ;;
2643         --disable-all)
2644             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2645             disable $LIBRARY_LIST $PROGRAM_LIST doc
2646         ;;
2647         --enable-random|--disable-random)
2648             action=${opt%%-random}
2649             do_random ${action#--} $COMPONENT_LIST
2650         ;;
2651         --enable-random=*|--disable-random=*)
2652             action=${opt%%-random=*}
2653             do_random ${action#--} $optval
2654         ;;
2655         --enable-*=*|--disable-*=*)
2656             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2657             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2658             eval list=\$$(toupper $thing)_LIST
2659             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2660             list=$(filter "$name" $list)
2661             [ "$list" = "" ] && warn "Option $opt did not match anything"
2662             $action $list
2663         ;;
2664         --enable-?*|--disable-?*)
2665             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2666             if is_in $option $COMPONENT_LIST; then
2667                 test $action = disable && action=unset
2668                 eval $action \$$(toupper ${option%s})_LIST
2669             elif is_in $option $CMDLINE_SELECT; then
2670                 $action $option
2671             else
2672                 die_unknown $opt
2673             fi
2674         ;;
2675         --list-*)
2676             NAME="${opt#--list-}"
2677             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2678             NAME=${NAME%s}
2679             eval show_list $NAME \$$(toupper $NAME)_LIST
2680         ;;
2681         --help|-h) show_help
2682         ;;
2683         --fatal-warnings) enable fatal_warnings
2684         ;;
2685         *)
2686             optname="${opt%%=*}"
2687             optname="${optname#--}"
2688             optname=$(echo "$optname" | sed 's/-/_/g')
2689             if is_in $optname $CMDLINE_SET; then
2690                 eval $optname='$optval'
2691             elif is_in $optname $CMDLINE_APPEND; then
2692                 append $optname "$optval"
2693             else
2694                 die_unknown $opt
2695             fi
2696         ;;
2697     esac
2698 done
2699
2700 disabled logging && logfile=/dev/null
2701
2702 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2703 set >> $logfile
2704
2705 test -n "$cross_prefix" && enable cross_compile
2706
2707 if enabled cross_compile; then
2708     test -n "$arch" && test -n "$target_os" ||
2709         die "Must specify target arch and OS when cross-compiling"
2710 fi
2711
2712 ar_default="${cross_prefix}${ar_default}"
2713 cc_default="${cross_prefix}${cc_default}"
2714 cxx_default="${cross_prefix}${cxx_default}"
2715 nm_default="${cross_prefix}${nm_default}"
2716 pkg_config_default="${cross_prefix}${pkg_config_default}"
2717 ranlib="${cross_prefix}${ranlib}"
2718 strip_default="${cross_prefix}${strip_default}"
2719 windres_default="${cross_prefix}${windres_default}"
2720
2721 sysinclude_default="${sysroot}/usr/include"
2722
2723 test -n "$valgrind" && toolchain="valgrind-memcheck"
2724
2725 case "$toolchain" in
2726     clang-asan)
2727         cc_default="clang"
2728         add_cflags  -fsanitize=address
2729         add_ldflags -fsanitize=address
2730     ;;
2731     clang-tsan)
2732         cc_default="clang"
2733         add_cflags  -fsanitize=thread -pie
2734         add_ldflags -fsanitize=thread -pie
2735     ;;
2736     gcc-asan)
2737         cc_default="gcc"
2738         add_cflags  -fsanitize=address
2739         add_ldflags -fsanitize=address
2740     ;;
2741     gcc-tsan)
2742         cc_default="gcc"
2743         add_cflags  -fsanitize=thread -pie -fPIC
2744         add_ldflags -fsanitize=thread -pie -fPIC
2745     ;;
2746     valgrind-massif)
2747         target_exec_default=${valgrind:-"valgrind"}
2748         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"
2749     ;;
2750     valgrind-memcheck)
2751         target_exec_default=${valgrind:-"valgrind"}
2752         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2753     ;;
2754     msvc)
2755         # Check whether the current MSVC version needs the C99 converter.
2756         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2757         # support enough of C99 to build ffmpeg. Default to the new
2758         # behaviour if the regexp was unable to match anything, since this
2759         # successfully parses the version number of existing supported
2760         # versions that require the converter (MSVC 2010 and 2012).
2761         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2762         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2763             cc_default="cl"
2764         else
2765             cc_default="c99wrap cl"
2766         fi
2767         ld_default="link"
2768         nm_default="dumpbin -symbols"
2769         ar_default="lib"
2770         target_os_default="win32"
2771         # Use a relative path for TMPDIR. This makes sure all the
2772         # ffconf temp files are written with a relative path, avoiding
2773         # issues with msys/win32 path conversion for MSVC parameters
2774         # such as -Fo<file> or -out:<file>.
2775         TMPDIR=.
2776     ;;
2777     icl)
2778         cc_default="icl"
2779         ld_default="xilink"
2780         nm_default="dumpbin -symbols"
2781         ar_default="xilib"
2782         target_os_default="win32"
2783         TMPDIR=.
2784     ;;
2785     gcov)
2786         add_cflags  -fprofile-arcs -ftest-coverage
2787         add_ldflags -fprofile-arcs -ftest-coverage
2788     ;;
2789     hardened)
2790         add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2791         add_ldflags -Wl,-z,relro -Wl,-z,now
2792     ;;
2793     ?*)
2794         die "Unknown toolchain $toolchain"
2795     ;;
2796 esac
2797
2798 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2799 enabled cross_compile || host_cc_default=$cc
2800 set_default host_cc
2801
2802 if ! $pkg_config --version >/dev/null 2>&1; then
2803     warn "$pkg_config not found, library detection may fail."
2804     pkg_config=false
2805 fi
2806
2807 exesuf() {
2808     case $1 in
2809         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2810     esac
2811 }
2812
2813 EXESUF=$(exesuf $target_os)
2814 HOSTEXESUF=$(exesuf $host_os)
2815
2816 # set temporary file name
2817 : ${TMPDIR:=$TEMPDIR}
2818 : ${TMPDIR:=$TMP}
2819 : ${TMPDIR:=/tmp}
2820
2821 if [ -n "$tempprefix" ] ; then
2822     mktemp(){
2823         echo $tempprefix.${HOSTNAME}.${UID}
2824     }
2825 elif ! check_cmd mktemp -u XXXXXX; then
2826     # simple replacement for missing mktemp
2827     # NOT SAFE FOR GENERAL USE
2828     mktemp(){
2829         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2830     }
2831 fi
2832
2833 tmpfile(){
2834     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2835         (set -C; exec > $tmp) 2>/dev/null ||
2836         die "Unable to create temporary file in $TMPDIR."
2837     append TMPFILES $tmp
2838     eval $1=$tmp
2839 }
2840
2841 trap 'rm -f -- $TMPFILES' EXIT
2842
2843 tmpfile TMPASM .asm
2844 tmpfile TMPC   .c
2845 tmpfile TMPCPP .cpp
2846 tmpfile TMPE   $EXESUF
2847 tmpfile TMPH   .h
2848 tmpfile TMPO   .o
2849 tmpfile TMPS   .S
2850 tmpfile TMPSH  .sh
2851 tmpfile TMPV   .ver
2852
2853 unset -f mktemp
2854
2855 chmod +x $TMPE
2856
2857 # make sure we can execute files in $TMPDIR
2858 cat > $TMPSH 2>> $logfile <<EOF
2859 #! /bin/sh
2860 EOF
2861 chmod +x $TMPSH >> $logfile 2>&1
2862 if ! $TMPSH >> $logfile 2>&1; then
2863     cat <<EOF
2864 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2865 variable to another directory and make sure that it is not mounted noexec.
2866 EOF
2867     die "Sanity test failed."
2868 fi
2869
2870 ccc_flags(){
2871     for flag; do
2872         case $flag in
2873             -std=c99)           echo -c99                       ;;
2874             -mcpu=*)            echo -arch ${flag#*=}           ;;
2875             -mieee)             echo -ieee                      ;;
2876             -O*|-fast)          echo $flag                      ;;
2877             -fno-math-errno)    echo -assume nomath_errno       ;;
2878             -g)                 echo -g3                        ;;
2879             -Wall)              echo -msg_enable level2         ;;
2880             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2881             -Wl,*)              echo $flag                      ;;
2882             -f*|-W*)                                            ;;
2883             *)                  echo $flag                      ;;
2884         esac
2885    done
2886 }
2887
2888 cparser_flags(){
2889     for flag; do
2890         case $flag in
2891             -Wno-switch)             echo -Wno-switch-enum ;;
2892             -Wno-format-zero-length) ;;
2893             -Wdisabled-optimization) ;;
2894             -Wno-pointer-sign)       echo -Wno-other ;;
2895             *)                       echo $flag ;;
2896         esac
2897     done
2898 }
2899
2900 msvc_common_flags(){
2901     for flag; do
2902         case $flag in
2903             # In addition to specifying certain flags under the compiler
2904             # specific filters, they must be specified here as well or else the
2905             # generic catch all at the bottom will print the original flag.
2906             -Wall)                ;;
2907             -std=c99)             ;;
2908             # Common flags
2909             -fomit-frame-pointer) ;;
2910             -g)                   echo -Z7 ;;
2911             -fno-math-errno)      ;;
2912             -fno-common)          ;;
2913             -fno-signed-zeros)    ;;
2914             -fPIC)                ;;
2915             -mthumb)              ;;
2916             -march=*)             ;;
2917             -lz)                  echo zlib.lib ;;
2918             -lavifil32)           echo vfw32.lib ;;
2919             -lavicap32)           echo vfw32.lib user32.lib ;;
2920             -l*)                  echo ${flag#-l}.lib ;;
2921             *)                    echo $flag ;;
2922         esac
2923     done
2924 }
2925
2926 msvc_flags(){
2927     msvc_common_flags "$@"
2928     for flag; do
2929         case $flag in
2930             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2931                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2932                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2933                                        -wd4554 \
2934                                        -wd4273 ;;
2935         esac
2936     done
2937 }
2938
2939 icl_flags(){
2940     msvc_common_flags "$@"
2941     for flag; do
2942         case $flag in
2943             # Despite what Intel's documentation says -Wall, which is supported
2944             # on Windows, does enable remarks so disable them here.
2945             -Wall)                echo $flag -Qdiag-disable:remark ;;
2946             -std=c99)             echo -Qstd=c99 ;;
2947         esac
2948     done
2949 }
2950
2951 pgi_flags(){
2952     for flag; do
2953         case $flag in
2954             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2955             -fomit-frame-pointer) echo -Mnoframe ;;
2956             -g)                   echo -gopt ;;
2957             *)                    echo $flag ;;
2958         esac
2959     done
2960 }
2961
2962 suncc_flags(){
2963     for flag; do
2964         case $flag in
2965             -march=*|-mcpu=*)
2966                 case "${flag#*=}" in
2967                     native)                   echo -xtarget=native       ;;
2968                     v9|niagara)               echo -xarch=sparc          ;;
2969                     ultrasparc)               echo -xarch=sparcvis       ;;
2970                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2971                     i586|pentium)             echo -xchip=pentium        ;;
2972                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2973                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2974                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2975                     pentium4*)          echo -xtarget=pentium4           ;;
2976                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2977                     *-sse3)             echo -xarch=sse3                 ;;
2978                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2979                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2980                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2981                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2982                     bdver*)                    echo -xarch=avx           ;;
2983                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2984                     k8|opteron|athlon64|athlon-fx)
2985                                                echo -xarch=sse2a         ;;
2986                     athlon*)                   echo -xarch=pentium_proa  ;;
2987                 esac
2988                 ;;
2989             -std=c99)             echo -xc99              ;;
2990             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2991             -fPIC)                echo -KPIC -xcode=pic32 ;;
2992             -W*,*)                echo $flag              ;;
2993             -f*-*|-W*|-mimpure-text)                      ;;
2994             -shared)              echo -G                 ;;
2995             *)                    echo $flag              ;;
2996         esac
2997     done
2998 }
2999
3000 tms470_flags(){
3001     for flag; do
3002         case $flag in
3003             -march=*|-mcpu=*)
3004                 case "${flag#*=}" in
3005                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3006                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3007                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3008                     armv6*|arm11*)          echo -mv=6   ;;
3009                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3010                                             echo -mv=5e  ;;
3011                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3012                 esac
3013                 ;;
3014             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3015             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3016             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3017             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3018             -msoft-float)   echo --float_support=vfplib       ;;
3019             -O[0-3]|-mf=*)  echo $flag                        ;;
3020             -g)             echo -g -mn                       ;;
3021             -pds=*)         echo $flag                        ;;
3022             -D*|-I*)        echo $flag                        ;;
3023             --gcc|--abi=*)  echo $flag                        ;;
3024             -me)            echo $flag                        ;;
3025         esac
3026     done
3027 }
3028
3029 probe_cc(){
3030     pfx=$1
3031     _cc=$2
3032
3033     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3034     unset _ld_o _ldflags _ld_lib _ld_path
3035     unset _depflags _DEPCMD _DEPFLAGS
3036     _flags_filter=echo
3037
3038     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3039         true # no-op to avoid reading stdin in following checks
3040     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3041         _type=llvm_gcc
3042         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3043         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3044         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3045         _cflags_speed='-O3'
3046         _cflags_size='-Os'
3047     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3048         _type=gcc
3049         gcc_version=$($_cc --version | head -n1)
3050         gcc_basever=$($_cc -dumpversion)
3051         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3052         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3053         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3054         if ! $_cc -dumpversion | grep -q '^2\.'; then
3055             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3056         fi
3057         _cflags_speed='-O3'
3058         _cflags_size='-Os'
3059     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3060         _type=icc
3061         _ident=$($_cc --version | head -n1)
3062         _depflags='-MMD'
3063         _cflags_speed='-O3'
3064         _cflags_size='-Os'
3065         _cflags_noopt='-O1'
3066     elif $_cc -v 2>&1 | grep -q xlc; then
3067         _type=xlc
3068         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3069         _cflags_speed='-O5'
3070         _cflags_size='-O5 -qcompact'
3071     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3072         _type=ccc
3073         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3074         _DEPFLAGS='-M'
3075         _cflags_speed='-fast'
3076         _cflags_size='-O1'
3077         _flags_filter=ccc_flags
3078     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
3079         test -d "$sysroot" || die "No valid sysroot specified."
3080         _type=armcc
3081         _ident=$($_cc --vsn | head -n1)
3082         armcc_conf="$PWD/armcc.conf"
3083         $_cc --arm_linux_configure                 \
3084              --arm_linux_config_file="$armcc_conf" \
3085              --configure_sysroot="$sysroot"        \
3086              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3087              die "Error creating armcc configuration file."
3088         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3089         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3090         as_default="${cross_prefix}gcc"
3091         _depflags='-MMD'
3092         _cflags_speed='-O3'
3093         _cflags_size='-Os'
3094     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3095         _type=tms470
3096         _ident=$($_cc -version | head -n1 | tr -s ' ')
3097         _flags='--gcc --abi=eabi -me'
3098         _cc_e='-ppl -fe=$@'
3099         _cc_o='-fe=$@'
3100         _depflags='-ppa -ppd=$(@:.o=.d)'
3101         _cflags_speed='-O3 -mf=5'
3102         _cflags_size='-O3 -mf=2'
3103         _flags_filter=tms470_flags
3104     elif $_cc -v 2>&1 | grep -q clang; then
3105         _type=clang
3106         _ident=$($_cc --version | head -n1)
3107         _depflags='-MMD'
3108         _cflags_speed='-O3'
3109         _cflags_size='-Os'
3110     elif $_cc -V 2>&1 | grep -q Sun; then
3111         _type=suncc
3112         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3113         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3114         _DEPFLAGS='-xM1 -xc99'
3115         _ldflags='-std=c99'
3116         _cflags_speed='-O5'
3117         _cflags_size='-O5 -xspace'
3118         _flags_filter=suncc_flags
3119     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3120         _type=pathscale
3121         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3122         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3123         _cflags_speed='-O2'
3124         _cflags_size='-Os'
3125         _flags_filter='filter_out -Wdisabled-optimization'
3126     elif $_cc -v 2>&1 | grep -q Open64; then
3127         _type=open64
3128         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3129         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3130         _cflags_speed='-O2'
3131         _cflags_size='-Os'
3132         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3133     elif $_cc -V 2>&1 | grep -q Portland; then
3134         _type=pgi
3135         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3136         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3137         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3138         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3139         _cflags_noopt="-O"
3140         _flags_filter=pgi_flags
3141     elif $_cc 2>&1 | grep -q Microsoft; then
3142         _type=msvc
3143         _ident=$($cc 2>&1 | head -n1)
3144         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3145         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3146         _cflags_speed="-O2"
3147         _cflags_size="-O1"
3148         if $_cc 2>&1 | grep -q Linker; then
3149             _ld_o='-out:$@'
3150         else
3151             _ld_o='-Fe$@'
3152         fi
3153         _cc_o='-Fo$@'
3154         _cc_e='-P -Fi$@'
3155         _flags_filter=msvc_flags
3156         _ld_lib='lib%.a'
3157         _ld_path='-libpath:'
3158         _flags='-nologo'
3159         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3160         if [ $pfx = hostcc ]; then
3161             append _cflags -Dsnprintf=_snprintf
3162         fi
3163         disable stripping
3164     elif $_cc 2>&1 | grep -q Intel; then
3165         _type=icl
3166         _ident=$($cc 2>&1 | head -n1)
3167         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3168         # Not only is O3 broken on 13.x+ but it is slower on all previous
3169         # versions (tested) as well.
3170         _cflags_speed="-O2"
3171         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3172         if $_cc 2>&1 | grep -q Linker; then
3173             _ld_o='-out:$@'
3174         else
3175             _ld_o='-Fe$@'
3176         fi
3177         _cc_o='-Fo$@'
3178         _cc_e='-P'
3179         _flags_filter=icl_flags
3180         _ld_lib='lib%.a'
3181         _ld_path='-libpath:'
3182         # -Qdiag-error to make icl error when seeing certain unknown arguments
3183         _flags='-nologo -Qdiag-error:4044,10157'
3184         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3185         # with MSVC which enables it by default.
3186         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3187         if [ $pfx = hostcc ]; then
3188             append _cflags -Dsnprintf=_snprintf
3189         fi
3190     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3191         _type=cparser
3192         _ident=$($_cc --version | head -n1)
3193         _depflags='-MMD'
3194         _cflags_speed='-O4'
3195         _cflags_size='-O2'
3196         _flags_filter=cparser_flags
3197     fi
3198
3199     eval ${pfx}_type=\$_type
3200     eval ${pfx}_ident=\$_ident
3201 }
3202
3203 set_ccvars(){
3204     eval ${1}_C=\${_cc_c-\${${1}_C}}
3205     eval ${1}_E=\${_cc_e-\${${1}_E}}
3206     eval ${1}_O=\${_cc_o-\${${1}_O}}
3207
3208     if [ -n "$_depflags" ]; then
3209         eval ${1}_DEPFLAGS=\$_depflags
3210     else
3211         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3212         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3213         eval DEP${1}FLAGS=\$_flags
3214     fi
3215 }
3216
3217 probe_cc cc "$cc"
3218 cflags_filter=$_flags_filter
3219 cflags_speed=$_cflags_speed
3220 cflags_size=$_cflags_size
3221 cflags_noopt=$_cflags_noopt
3222 add_cflags $_flags $_cflags
3223 cc_ldflags=$_ldflags
3224 set_ccvars CC
3225
3226 probe_cc hostcc "$host_cc"
3227 host_cflags_filter=$_flags_filter
3228 add_host_cflags  $_flags $_cflags
3229 set_ccvars HOSTCC
3230
3231 test -n "$cc_type" && enable $cc_type ||
3232     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3233
3234 : ${as_default:=$cc}
3235 : ${dep_cc_default:=$cc}
3236 : ${ld_default:=$cc}
3237 : ${host_ld_default:=$host_cc}
3238 set_default ar as dep_cc ld host_ld windres
3239
3240 probe_cc as "$as"
3241 asflags_filter=$_flags_filter
3242 add_asflags $_flags $_cflags
3243 set_ccvars AS
3244
3245 probe_cc ld "$ld"
3246 ldflags_filter=$_flags_filter
3247 add_ldflags $_flags $_ldflags
3248 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3249 LD_O=${_ld_o-$LD_O}
3250 LD_LIB=${_ld_lib-$LD_LIB}
3251 LD_PATH=${_ld_path-$LD_PATH}
3252
3253 probe_cc hostld "$host_ld"
3254 host_ldflags_filter=$_flags_filter
3255 add_host_ldflags $_flags $_ldflags
3256 HOSTLD_O=${_ld_o-$HOSTLD_O}
3257
3258 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3259     probe_cc depcc "$dep_cc"
3260     CCDEP=${_DEPCMD:-$DEPCMD}
3261     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3262     DEPCCFLAGS=$_flags
3263 fi
3264
3265 if $ar 2>&1 | grep -q Microsoft; then
3266     arflags="-nologo"
3267     ar_o='-out:$@'
3268 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3269     arflags="rq"
3270     ar_o='$@'
3271 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3272     arflags='-Xany -r -c'
3273     ar_o='$@'
3274 else
3275     arflags="rc"
3276     ar_o='$@'
3277 fi
3278
3279 add_cflags $extra_cflags
3280 add_cxxflags $extra_cxxflags
3281 add_asflags $extra_cflags
3282
3283 if test -n "$sysroot"; then
3284     case "$cc_type" in
3285         gcc|llvm_gcc|clang)
3286             add_cppflags --sysroot="$sysroot"
3287             add_ldflags --sysroot="$sysroot"
3288         ;;
3289         tms470)
3290             add_cppflags -I"$sysinclude"
3291             add_ldflags  --sysroot="$sysroot"
3292         ;;
3293     esac
3294 fi
3295
3296 if test "$cpu" = host; then
3297     enabled cross_compile &&
3298         die "--cpu=host makes no sense when cross-compiling."
3299
3300     case "$cc_type" in
3301         gcc|llvm_gcc)
3302             check_native(){
3303                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3304                 sed -n "/cc1.*$1=/{
3305                             s/.*$1=\\([^ ]*\\).*/\\1/
3306                             p
3307                             q
3308                         }" $TMPE
3309             }
3310             cpu=$(check_native -march || check_native -mcpu)
3311         ;;
3312     esac
3313
3314     test "${cpu:-host}" = host &&
3315         die "--cpu=host not supported with compiler $cc"
3316 fi
3317
3318 # Deal with common $arch aliases
3319 case "$arch" in
3320     aarch64|arm64)
3321         arch="aarch64"
3322     ;;
3323     arm*|iPad*|iPhone*)
3324         arch="arm"
3325     ;;
3326     mips*|IP*)
3327         arch="mips"
3328     ;;
3329     parisc*|hppa*)
3330         arch="parisc"
3331     ;;
3332     "Power Macintosh"|ppc*|powerpc*)
3333         arch="ppc"
3334     ;;
3335     s390|s390x)
3336         arch="s390"
3337     ;;
3338     sh4|sh)
3339         arch="sh4"
3340     ;;
3341     sun4u|sparc*)
3342         arch="sparc"
3343     ;;
3344     tilegx|tile-gx)
3345         arch="tilegx"
3346     ;;
3347     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3348         arch="x86"
3349     ;;
3350 esac
3351
3352 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3353 enable $arch
3354
3355 # Add processor-specific flags
3356 if enabled aarch64; then
3357
3358     case $cpu in
3359         armv*)
3360             cpuflags="-march=$cpu"
3361         ;;
3362         *)
3363             cpuflags="-mcpu=$cpu"
3364         ;;
3365     esac
3366
3367 elif enabled alpha; then
3368
3369     cpuflags="-mcpu=$cpu"
3370
3371 elif enabled arm; then
3372
3373     check_arm_arch() {
3374         check_cpp_condition stddef.h \
3375             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3376             $cpuflags
3377     }
3378
3379     probe_arm_arch() {
3380         if   check_arm_arch 4;        then echo armv4;
3381         elif check_arm_arch 4T;       then echo armv4t;
3382         elif check_arm_arch 5;        then echo armv5;
3383         elif check_arm_arch 5E;       then echo armv5e;
3384         elif check_arm_arch 5T;       then echo armv5t;
3385         elif check_arm_arch 5TE;      then echo armv5te;
3386         elif check_arm_arch 5TEJ;     then echo armv5te;
3387         elif check_arm_arch 6;        then echo armv6;
3388         elif check_arm_arch 6J;       then echo armv6j;
3389         elif check_arm_arch 6K;       then echo armv6k;
3390         elif check_arm_arch 6Z;       then echo armv6z;
3391         elif check_arm_arch 6ZK;      then echo armv6zk;
3392         elif check_arm_arch 6T2;      then echo armv6t2;
3393         elif check_arm_arch 7;        then echo armv7;
3394         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3395         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3396         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3397         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3398         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3399         fi
3400     }
3401
3402     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3403
3404     case $cpu in
3405         armv*)
3406             cpuflags="-march=$cpu"
3407             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3408         ;;
3409         *)
3410             cpuflags="-mcpu=$cpu"
3411             case $cpu in
3412                 cortex-a*)                               subarch=armv7a  ;;
3413                 cortex-r*)                               subarch=armv7r  ;;
3414                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3415                 arm11*)                                  subarch=armv6   ;;
3416                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3417                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3418                 *)                             subarch=$(probe_arm_arch) ;;
3419             esac
3420         ;;
3421     esac
3422
3423     case "$subarch" in
3424         armv5t*)    enable fast_clz                ;;
3425         armv[6-8]*) enable fast_clz fast_unaligned ;;
3426     esac
3427
3428 elif enabled avr32; then
3429
3430     case $cpu in
3431         ap7[02]0[0-2])
3432             subarch="avr32_ap"
3433             cpuflags="-mpart=$cpu"
3434         ;;
3435         ap)
3436             subarch="avr32_ap"
3437             cpuflags="-march=$cpu"
3438         ;;
3439         uc3[ab]*)
3440             subarch="avr32_uc"
3441             cpuflags="-mcpu=$cpu"
3442         ;;
3443         uc)
3444             subarch="avr32_uc"
3445             cpuflags="-march=$cpu"
3446         ;;
3447     esac
3448
3449 elif enabled bfin; then
3450
3451     cpuflags="-mcpu=$cpu"
3452
3453 elif enabled mips; then
3454
3455     cpuflags="-march=$cpu"
3456
3457     case $cpu in
3458         24kc)
3459             disable mipsfpu
3460             disable mipsdspr1
3461             disable mipsdspr2
3462         ;;
3463         24kf*)
3464             disable mipsdspr1
3465             disable mipsdspr2
3466         ;;
3467         24kec|34kc|1004kc)
3468             disable mipsfpu
3469             disable mipsdspr2
3470         ;;
3471         24kef*|34kf*|1004kf*)
3472             disable mipsdspr2
3473         ;;
3474         74kc)
3475             disable mipsfpu
3476         ;;
3477     esac
3478
3479 elif enabled ppc; then
3480
3481     case $(tolower $cpu) in
3482         601|ppc601|powerpc601)
3483             cpuflags="-mcpu=601"
3484             disable altivec
3485         ;;
3486         603*|ppc603*|powerpc603*)
3487             cpuflags="-mcpu=603"
3488             disable altivec
3489         ;;
3490         604*|ppc604*|powerpc604*)
3491             cpuflags="-mcpu=604"
3492             disable altivec
3493         ;;
3494         g3|75*|ppc75*|powerpc75*)
3495             cpuflags="-mcpu=750"
3496             disable altivec
3497         ;;
3498         g4|745*|ppc745*|powerpc745*)
3499             cpuflags="-mcpu=7450"
3500         ;;
3501         74*|ppc74*|powerpc74*)
3502             cpuflags="-mcpu=7400"
3503         ;;
3504         g5|970|ppc970|powerpc970)
3505             cpuflags="-mcpu=970"
3506         ;;
3507         power[3-7]*)
3508             cpuflags="-mcpu=$cpu"
3509         ;;
3510         cell)
3511             cpuflags="-mcpu=cell"
3512             enable ldbrx
3513         ;;
3514         e500mc)
3515             cpuflags="-mcpu=e500mc"
3516             disable altivec
3517         ;;
3518         e500v2)
3519             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3520             disable altivec
3521         ;;
3522         e500)
3523             cpuflags="-mcpu=8540 -mhard-float"
3524             disable altivec
3525         ;;
3526     esac
3527
3528 elif enabled sparc; then
3529
3530     case $cpu in
3531         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3532             cpuflags="-mcpu=$cpu"
3533             disable vis
3534         ;;
3535         ultrasparc*|niagara[234])
3536             cpuflags="-mcpu=$cpu"
3537         ;;
3538     esac
3539
3540 elif enabled x86; then
3541
3542     case $cpu in
3543         i[345]86|pentium)
3544             cpuflags="-march=$cpu"
3545             disable mmx
3546         ;;
3547         # targets that do NOT support nopl and conditional mov (cmov)
3548         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3549             cpuflags="-march=$cpu"
3550             disable i686
3551         ;;
3552         # targets that do support nopl and conditional mov (cmov)
3553         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3554             cpuflags="-march=$cpu"
3555             enable i686
3556             enable fast_cmov
3557         ;;
3558         # targets that do support conditional mov but on which it's slow
3559         pentium4|pentium4m|prescott|nocona)
3560             cpuflags="-march=$cpu"
3561             enable i686
3562             disable fast_cmov
3563         ;;
3564     esac
3565
3566 fi
3567
3568 if [ "$cpu" != generic ]; then
3569     add_cflags  $cpuflags
3570     add_asflags $cpuflags
3571 fi
3572
3573 # compiler sanity check
3574 check_exec <<EOF
3575 int main(void){ return 0; }
3576 EOF
3577 if test "$?" != 0; then
3578     echo "$cc is unable to create an executable file."
3579     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3580         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3581         echo "Only do this if you know what cross compiling means."
3582     fi
3583     die "C compiler test failed."
3584 fi
3585
3586 add_cppflags -D_ISOC99_SOURCE
3587 add_cxxflags -D__STDC_CONSTANT_MACROS
3588 check_cflags -std=c99
3589 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3590 #include <stdlib.h>
3591 EOF
3592 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3593 #include <stdlib.h>
3594 EOF
3595
3596 check_host_cflags -std=c99
3597 check_host_cflags -Wall
3598
3599 check_64bit(){
3600     arch32=$1
3601     arch64=$2
3602     expr=$3
3603     check_code cc "" "int test[2*($expr) - 1]" &&
3604         subarch=$arch64 || subarch=$arch32
3605 }
3606
3607 case "$arch" in
3608     aarch64|alpha|ia64)
3609         spic=$shared
3610     ;;
3611     mips)
3612         check_64bit mips mips64 '_MIPS_SIM > 1'
3613         spic=$shared
3614     ;;
3615     parisc)
3616         check_64bit parisc parisc64 'sizeof(void *) > 4'
3617         spic=$shared
3618     ;;
3619     ppc)
3620         check_64bit ppc ppc64 'sizeof(void *) > 4'
3621         spic=$shared
3622     ;;
3623     sparc)
3624         check_64bit sparc sparc64 'sizeof(void *) > 4'
3625         spic=$shared
3626     ;;
3627     x86)
3628         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3629         if test "$subarch" = "x86_64"; then
3630             spic=$shared
3631         fi
3632     ;;
3633     ppc)
3634         check_cc <<EOF && subarch="ppc64"
3635         int test[(int)sizeof(char*) - 7];
3636 EOF
3637     ;;
3638 esac
3639
3640 enable $subarch
3641 enabled spic && enable_weak pic
3642
3643 # OS specific
3644 case $target_os in
3645     aix)
3646         SHFLAGS=-shared
3647         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3648         enabled shared && add_ldflags -Wl,-brtl
3649         ;;
3650     haiku)
3651         prefix_default="/boot/common"
3652         network_extralibs="-lnetwork"
3653         host_libs=
3654         ;;
3655     sunos)
3656         SHFLAGS='-shared -Wl,-h,$$(@F)'
3657         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3658         network_extralibs="-lsocket -lnsl"
3659         # When using suncc to build, the Solaris linker will mark
3660         # an executable with each instruction set encountered by
3661         # the Solaris assembler.  As our libraries contain their own
3662         # guards for processor-specific code, instead suppress
3663         # generation of the HWCAPS ELF section on Solaris x86 only.
3664         enabled_all suncc x86 &&
3665             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3666             add_ldflags -Wl,-M,mapfile
3667         nm_default='nm -P -g'
3668         ;;
3669     netbsd)
3670         disable symver
3671         oss_indev_extralibs="-lossaudio"
3672         oss_outdev_extralibs="-lossaudio"
3673         enabled gcc || check_ldflags -Wl,-zmuldefs
3674         ;;
3675     openbsd|bitrig)
3676         disable symver
3677         SHFLAGS='-shared'
3678         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3679         SLIB_INSTALL_LINKS=
3680         oss_indev_extralibs="-lossaudio"
3681         oss_outdev_extralibs="-lossaudio"
3682         ;;
3683     dragonfly)
3684         disable symver
3685         ;;
3686     freebsd)
3687         ;;
3688     bsd/os)
3689         add_extralibs -lpoll -lgnugetopt
3690         strip="strip -d"
3691         ;;
3692     darwin)
3693         gas="gas-preprocessor.pl $cc"
3694         enabled ppc && add_asflags -force_cpusubtype_ALL
3695         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3696         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3697         strip="${strip} -x"
3698         add_ldflags -Wl,-dynamic,-search_paths_first
3699         SLIBSUF=".dylib"
3700         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3701         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3702         objformat="macho"
3703         enabled x86_64 && objformat="macho64"
3704         enabled_any pic shared ||
3705             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3706         ;;
3707     mingw32*)
3708         if test $target_os = "mingw32ce"; then
3709             disable network
3710         else
3711             target_os=mingw32
3712         fi
3713         LIBTARGET=i386
3714         if enabled x86_64; then
3715             LIBTARGET="i386:x86-64"
3716         elif enabled arm; then
3717             LIBTARGET=arm-wince
3718         fi
3719         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3720         check_ldflags -Wl,--nxcompat
3721         check_ldflags -Wl,--dynamicbase
3722         shlibdir_default="$bindir_default"
3723         SLIBPREF=""
3724         SLIBSUF=".dll"
3725         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3726         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3727         dlltool="${cross_prefix}dlltool"
3728         if check_cmd lib.exe -list; then
3729             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3730             if enabled x86_64; then
3731                 LIBTARGET=x64
3732             fi
3733         elif check_cmd $dlltool --version; then
3734             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3735         fi
3736         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3737         SLIB_INSTALL_LINKS=
3738         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3739         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3740         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3741         objformat="win32"
3742         ranlib=:
3743         enable dos_paths
3744         ;;
3745     win32|win64)
3746         disable symver
3747         if enabled shared; then
3748             # Link to the import library instead of the normal static library
3749             # for shared libs.
3750             LD_LIB='%.lib'
3751             # Cannot build both shared and static libs with MSVC or icl.
3752             disable static
3753         fi
3754         shlibdir_default="$bindir_default"
3755         SLIBPREF=""
3756         SLIBSUF=".dll"
3757         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3758         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3759         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3760         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3761         SLIB_INSTALL_LINKS=
3762         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3763         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3764         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3765         objformat="win32"
3766         ranlib=:
3767         enable dos_paths
3768         ;;
3769     cygwin*)
3770         target_os=cygwin
3771         shlibdir_default="$bindir_default"
3772         SLIBPREF="cyg"
3773         SLIBSUF=".dll"
3774         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3775         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3776         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3777         SLIB_INSTALL_LINKS=
3778         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3779         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3780         objformat="win32"
3781         enable dos_paths
3782         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3783         ;;
3784     *-dos|freedos|opendos)
3785         network_extralibs="-lsocket"
3786         objformat="coff"
3787         enable dos_paths
3788         add_cppflags -U__STRICT_ANSI__
3789         ;;
3790     linux)
3791         enable dv1394
3792         ;;
3793     irix*)
3794         target_os=irix
3795         ranlib="echo ignoring ranlib"
3796         ;;
3797     os/2*)
3798         strip="lxlite -CS"
3799         ln_s="cp -f"
3800         objformat="aout"
3801         add_cppflags -D_GNU_SOURCE
3802         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3803         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3804         LIBSUF="_s.a"
3805         SLIBPREF=""
3806         SLIBSUF=".dll"
3807         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3808         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3809         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3810             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3811             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3812             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3813             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3814             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3815         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3816             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3817         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3818         enable dos_paths
3819         enable_weak os2threads
3820         ;;
3821     gnu/kfreebsd)
3822         add_cppflags -D_BSD_SOURCE
3823         ;;
3824     gnu)
3825         ;;
3826     qnx)
3827         add_cppflags -D_QNX_SOURCE
3828         network_extralibs="-lsocket"
3829         ;;
3830     symbian)
3831         SLIBSUF=".dll"
3832         enable dos_paths
3833         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3834         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3835         add_ldflags -Wl,--target1-abs,--no-undefined \
3836                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3837                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3838         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3839                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3840                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3841         ;;
3842     osf1)
3843         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3844         ;;
3845     minix)
3846         ;;
3847     plan9)
3848         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3849                      -D_REENTRANT_SOURCE        \
3850                      -D_RESEARCH_SOURCE         \
3851                      -DFD_SETSIZE=96            \
3852                      -DHAVE_SOCK_OPTS
3853         add_compat strtod.o strtod=avpriv_strtod
3854         network_extralibs='-lbsd'
3855         exeobjs=compat/plan9/main.o
3856         disable ffserver
3857         cp_f='cp'
3858         ;;
3859     none)
3860         ;;
3861     *)
3862         die "Unknown OS '$target_os'."
3863         ;;
3864 esac
3865
3866 # determine libc flavour
3867
3868 probe_libc(){
3869     pfx=$1
3870     pfx_no_=${pfx%_}
3871     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3872     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3873         eval ${pfx}libc_type=uclibc
3874         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3875     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3876         eval ${pfx}libc_type=glibc
3877         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3878     # MinGW headers can be installed on Cygwin, so check for newlib first.
3879     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3880         eval ${pfx}libc_type=newlib
3881         add_${pfx}cppflags -U__STRICT_ANSI__
3882     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3883     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3884         eval ${pfx}libc_type=mingw64
3885         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
3886             add_compat msvcrt/snprintf.o
3887             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3888         fi
3889         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3890         eval test \$${pfx_no_}cc_type = "gcc" &&
3891             add_${pfx}cppflags -D__printf__=__gnu_printf__
3892     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3893          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3894         eval ${pfx}libc_type=mingw32
3895         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3896             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3897             die "ERROR: MinGW32 runtime version must be >= 3.15."
3898         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3899         eval test \$${pfx_no_}cc_type = "gcc" &&
3900             add_${pfx}cppflags -D__printf__=__gnu_printf__
3901     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3902         eval ${pfx}libc_type=msvcrt
3903         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3904         # 0x601 by default unless something else is set by the user.
3905         # This can easily lead to us detecting functions only present
3906         # in such new versions and producing binaries requiring windows 7.0.
3907         # Therefore explicitly set the default to XP unless the user has
3908         # set something else on the command line.
3909         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3910             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3911     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3912         eval ${pfx}libc_type=klibc
3913     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3914         eval ${pfx}libc_type=bionic
3915     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3916         eval ${pfx}libc_type=solaris
3917         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3918     fi
3919 }
3920
3921 probe_libc
3922 test -n "$libc_type" && enable libc_$libc_type
3923 probe_libc host_
3924 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3925
3926 case $libc_type in
3927     bionic)
3928         add_compat strtod.o strtod=avpriv_strtod
3929         ;;
3930     msvcrt)
3931         add_compat strtod.o strtod=avpriv_strtod
3932         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3933                                      _snprintf=avpriv_snprintf  \
3934                                      vsnprintf=avpriv_vsnprintf
3935         ;;
3936 esac
3937
3938 # hacks for compiler/libc/os combinations
3939
3940 if enabled_all tms470 libc_glibc; then
3941     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3942     add_cppflags -D__USER_LABEL_PREFIX__=
3943     add_cppflags -D__builtin_memset=memset
3944     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3945     add_cflags   -pds=48    # incompatible redefinition of macro
3946 fi
3947
3948 if enabled_all ccc libc_glibc; then
3949     add_ldflags -Wl,-z,now  # calls to libots crash without this
3950 fi
3951
3952 esc(){
3953     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3954 }
3955
3956 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3957
3958 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3959
3960 set_default $PATHS_LIST
3961 set_default nm
3962
3963 # we need to build at least one lib type
3964 if ! enabled_any static shared; then
3965     cat <<EOF
3966 At least one library type must be built.
3967 Specify --enable-static to build the static libraries or --enable-shared to
3968 build the shared libraries as well. To only build the shared libraries specify
3969 --disable-static in addition to --enable-shared.
3970 EOF
3971     exit 1;
3972 fi
3973
3974 # backward compatibility layer for incompatible_libav/fork_abi
3975 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3976 enabled incompatible_libav_abi && enable incompatible_fork_abi
3977
3978 die_license_disabled() {
3979     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3980 }
3981
3982 die_license_disabled_gpl() {
3983     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3984 }
3985
3986 die_license_disabled gpl frei0r
3987 die_license_disabled gpl libcdio
3988 die_license_disabled gpl libutvideo
3989 die_license_disabled gpl libvidstab
3990 die_license_disabled gpl libx264
3991 die_license_disabled gpl libxavs
3992 die_license_disabled gpl libxvid
3993 die_license_disabled gpl libzvbi
3994 die_license_disabled gpl x11grab
3995
3996 die_license_disabled nonfree libaacplus
3997 die_license_disabled nonfree libfaac
3998 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3999 enabled gpl && die_license_disabled_gpl nonfree openssl
4000
4001 die_license_disabled version3 libopencore_amrnb
4002 die_license_disabled version3 libopencore_amrwb
4003 die_license_disabled version3 libvo_aacenc
4004 die_license_disabled version3 libvo_amrwbenc
4005
4006 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4007
4008 disabled optimizations || check_cflags -fomit-frame-pointer
4009
4010 enable_weak_pic() {
4011     disabled pic && return
4012     enable pic
4013     add_cppflags -DPIC
4014     case "$target_os" in
4015     mingw*|cygwin*)
4016         ;;
4017     *)
4018         add_cflags -fPIC
4019         ;;
4020     esac
4021     add_asflags  -fPIC
4022 }
4023
4024 enabled pic && enable_weak_pic
4025
4026 check_cc <<EOF || die "Symbol mangling check failed."
4027 int ff_extern;
4028 EOF
4029 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4030 extern_prefix=${sym%%ff_extern*}
4031
4032 check_cc <<EOF && enable_weak inline_asm
4033 void foo(void) { __asm__ volatile ("" ::); }
4034 EOF
4035
4036 _restrict=
4037 for restrict_keyword in restrict __restrict__ __restrict; do
4038     check_cc <<EOF && _restrict=$restrict_keyword && break
4039 void foo(char * $restrict_keyword p);
4040 EOF
4041 done
4042
4043 check_cc <<EOF && enable pragma_deprecated
4044 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4045 EOF
4046
4047 check_cc <<EOF && enable attribute_packed
4048 struct { int x; } __attribute__((packed)) x;
4049 EOF
4050
4051 check_cc <<EOF && enable attribute_may_alias
4052 union { int x; } __attribute__((may_alias)) x;
4053 EOF
4054
4055 check_cc <<EOF || die "endian test failed"
4056 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4057 EOF
4058 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4059
4060 check_inline_asm inline_asm_labels '"1:\n"'
4061
4062 if enabled aarch64; then
4063     # internal assembler in clang 3.3 does not support this instruction
4064     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4065     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4066
4067     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4068
4069 elif enabled alpha; then
4070
4071     check_cflags -mieee
4072
4073 elif enabled arm; then
4074
4075     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4076 float func(float a, float b){ return a+b; }
4077 EOF
4078
4079     enabled thumb && check_cflags -mthumb || check_cflags -marm
4080     nogas=die
4081
4082     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4083         enable vfp_args
4084     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4085         case "${cross_prefix:-$cc}" in
4086             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4087             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4088 __asm__ (".eabi_attribute 28, 1");
4089 int main(void) { return 0; }
4090 EOF
4091         esac
4092         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4093     fi
4094
4095     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4096     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4097     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4098     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4099     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4100     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4101
4102     [ $target_os = linux ] ||
4103         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4104             $ARCH_EXT_LIST_ARM
4105
4106     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4107     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
4108
4109     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4110
4111 elif enabled mips; then
4112
4113     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4114     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4115      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4116     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4117      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4118     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4119      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4120     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4121      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4122
4123 elif enabled parisc; then
4124
4125     if enabled gcc; then
4126         case $($cc -dumpversion) in
4127             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4128         esac
4129     fi
4130
4131 elif enabled ppc; then
4132
4133     enable local_aligned_8 local_aligned_16
4134
4135     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4136     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4137     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4138     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4139
4140     # AltiVec flags: The FSF version of GCC differs from the Apple version
4141     if enabled altivec; then
4142         if ! enabled_any pic ppc64; then
4143             nogas=warn
4144         fi
4145         check_cflags -maltivec -mabi=altivec &&
4146         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4147         check_cflags -faltivec
4148
4149         # check if our compiler supports Motorola AltiVec C API
4150         check_cc <<EOF || disable altivec
4151 $inc_altivec_h
4152 int main(void) {
4153     vector signed int v1 = (vector signed int) { 0 };
4154     vector signed int v2 = (vector signed int) { 1 };
4155     v1 = vec_add(v1, v2);
4156     return 0;
4157 }
4158 EOF
4159
4160         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4161     fi
4162
4163 elif enabled sparc; then
4164
4165     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
4166
4167 elif enabled x86; then
4168
4169     check_builtin rdtsc    intrin.h   "__rdtsc()"
4170     check_builtin mm_empty mmintrin.h "_mm_empty()"
4171
4172     enable local_aligned_8 local_aligned_16
4173
4174     # check whether EBP is available on x86
4175     # As 'i' is stored on the stack, this program will crash
4176     # if the base pointer is used to access it because the
4177     # base pointer is cleared in the inline assembly code.
4178     check_exec_crash <<EOF && enable ebp_available
4179 volatile int i=0;
4180 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4181 return i;
4182 EOF
4183
4184     # check whether EBX is available on x86
4185     check_inline_asm ebx_available '""::"b"(0)' &&
4186         check_inline_asm ebx_available '"":::"%ebx"'
4187
4188     # check whether xmm clobbers are supported
4189     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4190
4191     # check whether binutils is new enough to compile SSSE3/MMXEXT
4192     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4193     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4194
4195     if ! disabled_any asm mmx yasm; then
4196         if check_cmd $yasmexe --version; then
4197             enabled x86_64 && yasm_extra="-m amd64"
4198             yasm_debug="-g dwarf2"
4199         elif check_cmd nasm -v; then
4200             yasmexe=nasm
4201             yasm_debug="-g -F dwarf"
4202             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4203         fi
4204
4205         YASMFLAGS="-f $objformat $yasm_extra"
4206         enabled pic               && append YASMFLAGS "-DPIC"
4207         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4208         case "$objformat" in
4209             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4210         esac
4211
4212         check_yasm "movbe ecx, [5]" && enable yasm ||
4213             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4214         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4215         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4216         check_yasm "CPU amdnop" && enable cpunop
4217     fi
4218
4219     case "$cpu" in
4220         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4221             disable fast_clz
4222         ;;
4223     esac
4224
4225 fi
4226
4227 if enabled asm; then
4228     as=${gas:=$as}
4229     check_as <<EOF && enable gnu_as || \
4230         $nogas "GNU assembler not found, install gas-preprocessor"
4231 .macro m n
4232 \n: .int 0
4233 .endm
4234 m x
4235 EOF
4236 fi
4237
4238 check_ldflags -Wl,--as-needed
4239
4240 if check_func dlopen; then
4241     ldl=
4242 elif check_func dlopen -ldl; then
4243     ldl=-ldl
4244 fi
4245
4246 if ! disabled network; then
4247     check_type "sys/types.h sys/socket.h" socklen_t
4248     check_type netdb.h "struct addrinfo"
4249     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4250     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4251     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4252     check_type netinet/in.h "struct sockaddr_in6"
4253     check_type poll.h "struct pollfd"
4254     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4255     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4256     check_type netinet/sctp.h "struct sctp_event_subscribe"
4257     check_func getaddrinfo $network_extralibs
4258     check_func getservbyport $network_extralibs
4259     # Prefer arpa/inet.h over winsock2
4260     if check_header arpa/inet.h ; then
4261         check_func closesocket
4262     elif check_header winsock2.h ; then
4263         check_func_headers winsock2.h closesocket -lws2 &&
4264             network_extralibs="-lws2" ||
4265         { check_func_headers winsock2.h closesocket -lws2_32 &&
4266             network_extralibs="-lws2_32"; } || disable winsock2_h network
4267         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4268         check_type ws2tcpip.h socklen_t
4269         check_type ws2tcpip.h "struct addrinfo"
4270         check_type ws2tcpip.h "struct group_source_req"
4271         check_type ws2tcpip.h "struct ip_mreq_source"
4272         check_type ws2tcpip.h "struct ipv6_mreq"
4273         check_type winsock2.h "struct pollfd"
4274         check_type ws2tcpip.h "struct sockaddr_in6"
4275         check_type ws2tcpip.h "struct sockaddr_storage"
4276         check_struct winsock2.h "struct sockaddr" sa_len
4277     else
4278         disable network
4279     fi
4280 fi
4281
4282 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4283 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4284
4285 check_func  access
4286 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4287 check_func  fcntl
4288 check_func  fork
4289 check_func_headers stdlib.h getenv
4290 check_func  gethrtime
4291 check_func  getopt
4292 check_func  getrusage
4293 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4294 check_func  gettimeofday
4295 check_func  inet_aton $network_extralibs
4296 check_func  isatty
4297 check_func  localtime_r
4298 check_func  ${malloc_prefix}memalign            && enable memalign
4299 check_func  mkstemp
4300 check_func  mmap
4301 check_func  mprotect
4302 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4303 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4304 check_func  setrlimit
4305 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4306 check_func  strerror_r
4307 check_func  sched_getaffinity
4308 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4309 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4310 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4311 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4312 check_builtin sarestart signal.h "SA_RESTART"
4313 check_func  sysconf
4314 check_func  sysctl
4315 check_func  usleep
4316 check_func_headers conio.h kbhit
4317 check_func_headers windows.h PeekNamedPipe
4318 check_func_headers io.h setmode
4319 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4320 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4321 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4322 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4323 check_func_headers windows.h GetProcessAffinityMask
4324 check_func_headers windows.h GetProcessTimes
4325 check_func_headers windows.h GetSystemTimeAsFileTime
4326 check_func_headers windows.h MapViewOfFile
4327 check_func_headers windows.h SetConsoleTextAttribute
4328 check_func_headers windows.h Sleep
4329 check_func_headers windows.h VirtualAlloc
4330 check_func_headers glob.h glob
4331 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4332
4333 check_header cl/cl.h
4334 check_header direct.h
4335 check_header dlfcn.h
4336 check_header dxva.h
4337 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4338 check_header io.h
4339 check_header libcrystalhd/libcrystalhd_if.h
4340 check_header malloc.h
4341 check_header poll.h
4342 check_header sys/mman.h
4343 check_header sys/param.h
4344 check_header sys/resource.h
4345 check_header sys/select.h
4346 check_header sys/time.h
4347 check_header sys/un.h
4348 check_header termios.h
4349 check_header unistd.h
4350 check_header vdpau/vdpau.h
4351 check_header vdpau/vdpau_x11.h
4352 check_header VideoDecodeAcceleration/VDADecoder.h
4353 check_header windows.h
4354 check_header X11/extensions/XvMClib.h
4355 check_header asm/types.h
4356
4357 if ! disabled w32threads && ! enabled pthreads; then
4358     check_func_headers "windows.h process.h" _beginthreadex &&
4359         enable w32threads || disable w32threads
4360 fi
4361
4362 # check for some common methods of building with pthread support
4363 # do this before the optional library checks as some of them require pthreads
4364 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4365     enable pthreads
4366     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4367         add_cflags -pthread
4368         add_extralibs -pthread
4369     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4370         add_cflags -pthreads
4371         add_extralibs -pthreads
4372     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4373         add_extralibs -lpthreadGC2
4374     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4375         :
4376     elif ! check_func pthread_join && ! check_func pthread_create; then
4377         disable pthreads
4378     fi
4379     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4380 fi
4381
4382 for thread in $THREADS_LIST; do
4383     if enabled $thread; then
4384         test -n "$thread_type" &&
4385             die "ERROR: Only one thread type must be selected." ||
4386             thread_type="$thread"
4387     fi
4388 done
4389
4390 if enabled pthreads; then
4391   check_func pthread_cancel
4392 fi
4393
4394 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4395 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4396
4397 check_lib math.h sin -lm && LIBM="-lm"
4398 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4399
4400 atan2f_args=2
4401 ldexpf_args=2
4402 powf_args=2
4403
4404 for func in $MATH_FUNCS; do
4405     eval check_mathfunc $func \${${func}_args:-1}
4406 done
4407
4408 # these are off by default, so fail if requested and not available
4409 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4410                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4411                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4412 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4413 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4414 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4415 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4416 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4417 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4418 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4419 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4420 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4421                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4422                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4423 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4424 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4425 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4426 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"
4427 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4428 enabled libfreetype       && require_libfreetype
4429 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4430 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4431                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4432                                done || die "ERROR: libgsm not found"; }
4433 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4434 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4435 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4436 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4437 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4438 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4439 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4440 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4441                                check_lib openjpeg.h opj_version -lopenjpeg ||
4442                                die "ERROR: libopenjpeg not found"; }
4443 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4444 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4445 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4446 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4447 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4448 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4449 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4450 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4451 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4452 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4453     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4454     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4455 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4456 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4457                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4458                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4459 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4460 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4461 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4462 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4463 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4464 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4465 enabled libvpx            && {
4466     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4467                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4468     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 ||
4469                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4470     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4471     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; } }
4472 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4473 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4474 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4475                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4476                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4477 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4478 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4479 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4480 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4481 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4482                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4483                                die "ERROR: openal not found"; } &&
4484                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4485                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4486 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4487                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4488                                die "ERROR: opencl not found"; } &&
4489                              { ! enabled_any w32threads os2threads ||
4490                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4491                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4492                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4493                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4494 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4495                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4496                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4497                                die "ERROR: openssl not found"; }
4498
4499 if enabled gnutls; then
4500     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4501     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4502 fi
4503
4504 # libdc1394 check
4505 if enabled libdc1394; then
4506     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4507         enable libdc1394_2; } ||
4508     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4509         enable libdc1394_1; } ||
4510     die "ERROR: No version of libdc1394 found "
4511 fi
4512
4513 SDL_CONFIG="${cross_prefix}sdl-config"
4514 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4515     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4516     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4517     enable sdl
4518 else
4519   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4520     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4521     sdl_libs=$("${SDL_CONFIG}" --libs)
4522     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4523     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4524     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4525     enable sdl
4526   fi
4527 fi
4528 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4529
4530 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4531 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4532 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4533 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4534 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4535
4536 check_header linux/fb.h
4537 check_header linux/videodev.h
4538 check_header linux/videodev2.h
4539 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4540
4541 check_header sys/videoio.h
4542
4543 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4544 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4545 # w32api 3.12 had it defined wrong
4546 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4547
4548 check_type "dshow.h" IBaseFilter
4549
4550 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4551 { check_header dev/bktr/ioctl_meteor.h &&
4552   check_header dev/bktr/ioctl_bt848.h; } ||
4553 { check_header machine/ioctl_meteor.h &&
4554   check_header machine/ioctl_bt848.h; } ||
4555 { check_header dev/video/meteor/ioctl_meteor.h &&
4556   check_header dev/video/bktr/ioctl_bt848.h; } ||
4557 check_header dev/ic/bt8xx.h
4558
4559 check_header sndio.h
4560 if check_struct sys/soundcard.h audio_buf_info bytes; then
4561     enable_safe sys/soundcard.h
4562 else
4563     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4564     #include <sys/soundcard.h>
4565     audio_buf_info abc;
4566 EOF
4567 fi
4568 check_header soundcard.h
4569
4570 enabled_any alsa_indev alsa_outdev &&
4571     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4572
4573 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4574     check_func jack_port_get_latency_range -ljack
4575
4576 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4577
4578 if enabled libcdio; then
4579     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4580     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4581     die "ERROR: libcdio-paranoia not found"
4582 fi
4583
4584 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4585
4586 enabled x11grab                                           &&
4587 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4588 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4589 { enabled xlib || die "ERROR: Xlib not found"; }
4590
4591 enabled vaapi &&
4592     check_lib va/va.h vaInitialize -lva ||
4593     disable vaapi
4594
4595 enabled vdpau &&
4596     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4597     disable vdpau
4598
4599 enabled vdpau && enabled xlib &&
4600     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4601     enable vdpau_x11
4602
4603 # Funny iconv installations are not unusual, so check it after all flags have been set
4604 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4605
4606 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4607
4608 # add some useful compiler flags if supported
4609 check_cflags -Wdeclaration-after-statement
4610 check_cflags -Wall
4611 check_cflags -Wdisabled-optimization
4612 check_cflags -Wpointer-arith
4613 check_cflags -Wredundant-decls
4614 check_cflags -Wwrite-strings
4615 check_cflags -Wtype-limits
4616 check_cflags -Wundef
4617 check_cflags -Wmissing-prototypes
4618 check_cflags -Wno-pointer-to-int-cast
4619 check_cflags -Wstrict-prototypes
4620 enabled extra_warnings && check_cflags -Winline
4621
4622 check_disable_warning(){
4623     warning_flag=-W${1#-Wno-}
4624     test_cflags $warning_flag && add_cflags $1
4625 }
4626
4627 check_disable_warning -Wno-parentheses
4628 check_disable_warning -Wno-switch
4629 check_disable_warning -Wno-format-zero-length
4630 check_disable_warning -Wno-pointer-sign
4631
4632 # add some linker flags
4633 check_ldflags -Wl,--warn-common
4634 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4635 enabled rpath && add_ldflags -Wl,-rpath=$libdir
4636 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4637
4638 # add some strip flags
4639 # -wN '..@*' is more selective than -x, but not available everywhere.
4640 check_stripflags -wN \'..@*\' || check_stripflags -x
4641
4642 enabled neon_clobber_test &&
4643     check_ldflags -Wl,--wrap,avcodec_open2              \
4644                   -Wl,--wrap,avcodec_decode_audio4      \
4645                   -Wl,--wrap,avcodec_decode_video2      \
4646                   -Wl,--wrap,avcodec_decode_subtitle2   \
4647                   -Wl,--wrap,avcodec_encode_audio2      \
4648                   -Wl,--wrap,avcodec_encode_video2      \
4649                   -Wl,--wrap,avcodec_encode_subtitle    \
4650                   -Wl,--wrap,avresample_convert ||
4651     disable neon_clobber_test
4652
4653 enabled xmm_clobber_test &&
4654     check_ldflags -Wl,--wrap,avcodec_open2              \
4655                   -Wl,--wrap,avcodec_decode_audio4      \
4656                   -Wl,--wrap,avcodec_decode_video2      \
4657                   -Wl,--wrap,avcodec_decode_subtitle2   \
4658                   -Wl,--wrap,avcodec_encode_audio2      \
4659                   -Wl,--wrap,avcodec_encode_video       \
4660                   -Wl,--wrap,avcodec_encode_video2      \
4661                   -Wl,--wrap,avcodec_encode_subtitle    \
4662                   -Wl,--wrap,avresample_convert         \
4663                   -Wl,--wrap,sws_scale ||
4664     disable xmm_clobber_test
4665
4666 echo "X{};" > $TMPV
4667 if test_ldflags -Wl,--version-script,$TMPV; then
4668     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4669     check_cc <<EOF && enable symver_asm_label
4670 void ff_foo(void) __asm__ ("av_foo@VERSION");
4671 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4672 EOF
4673     check_cc <<EOF && enable symver_gnu_asm
4674 __asm__(".symver ff_foo,av_foo@VERSION");
4675 void ff_foo(void) {}
4676 EOF
4677 fi
4678
4679 if [ -z "$optflags" ]; then
4680     if enabled small; then
4681         optflags=$cflags_size
4682     elif enabled optimizations; then
4683         optflags=$cflags_speed
4684     else
4685         optflags=$cflags_noopt
4686     fi
4687 fi
4688
4689 check_optflags(){
4690     check_cflags "$@"
4691     enabled lto && check_ldflags "$@"
4692 }
4693
4694
4695 if enabled lto; then
4696     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4697     check_cflags  -flto
4698     check_ldflags -flto $cpuflags
4699 fi
4700
4701 check_optflags $optflags
4702 check_optflags -fno-math-errno
4703 check_optflags -fno-signed-zeros
4704
4705 enabled ftrapv && check_cflags -ftrapv
4706
4707 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4708 int x;
4709 EOF
4710
4711
4712 if enabled icc; then
4713     # Just warnings, no remarks
4714     check_cflags -w1
4715     # -wd: Disable following warnings
4716     # 144, 167, 556: -Wno-pointer-sign
4717     # 188: enumerated type mixed with another type
4718     # 1292: attribute "foo" ignored
4719     # 1419: external declaration in primary source file
4720     # 10006: ignoring unknown option -fno-signed-zeros
4721     # 10148: ignoring unknown option -Wno-parentheses
4722     # 10156: ignoring option '-W'; no argument required
4723     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4724     # 11030: Warning unknown option --as-needed
4725     # 10156: ignoring option '-export'; no argument required
4726     check_ldflags -wd10156,11030
4727     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4728     enable ebp_available
4729     if enabled x86_32; then
4730         icc_version=$($cc -dumpversion)
4731         test ${icc_version%%.*} -ge 11 &&
4732             check_cflags -falign-stack=maintain-16-byte ||
4733             disable aligned_stack
4734     fi
4735 elif enabled ccc; then
4736     # disable some annoying warnings
4737     add_cflags -msg_disable bitnotint
4738     add_cflags -msg_disable mixfuncvoid
4739     add_cflags -msg_disable nonstandcast
4740     add_cflags -msg_disable unsupieee
4741 elif enabled gcc; then
4742     check_optflags -fno-tree-vectorize
4743     check_cflags -Werror=implicit-function-declaration
4744     check_cflags -Werror=missing-prototypes
4745     check_cflags -Werror=return-type
4746     check_cflags -Werror=vla
4747     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4748 elif enabled llvm_gcc; then
4749     check_cflags -mllvm -stack-alignment=16
4750 elif enabled clang; then
4751     check_cflags -mllvm -stack-alignment=16
4752     check_cflags -Qunused-arguments
4753     check_cflags -Werror=implicit-function-declaration
4754     check_cflags -Werror=missing-prototypes
4755     check_cflags -Werror=return-type
4756 elif enabled cparser; then
4757     add_cflags -Wno-missing-variable-declarations
4758     add_cflags -Wno-empty-statement
4759 elif enabled armcc; then
4760     # 2523: use of inline assembler is deprecated
4761     add_cflags -W${armcc_opt},--diag_suppress=2523
4762     add_cflags -W${armcc_opt},--diag_suppress=1207
4763     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4764     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4765     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4766     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4767 elif enabled tms470; then
4768     add_cflags -pds=824 -pds=837
4769     disable inline_asm
4770 elif enabled pathscale; then
4771     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4772 elif enabled_any msvc icl; then
4773     enabled x86_32 && disable aligned_stack
4774     enabled_all x86_32 debug && add_cflags -Oy-
4775     enabled debug && add_ldflags -debug
4776     enable pragma_deprecated
4777     if enabled icl; then
4778         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4779         # (correctly) on icl 13.x.
4780         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4781             add_cflags -Qansi-alias
4782         # icl will pass the inline asm tests but inline asm is currently
4783         # not supported (build will fail)
4784         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4785         disable inline_asm
4786     fi
4787 fi
4788
4789 case $target_os in
4790     osf1)
4791         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4792     ;;
4793     plan9)
4794         add_cppflags -Dmain=plan9_main
4795     ;;
4796 esac
4797
4798 enable frame_thread_encoder
4799
4800 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4801
4802 check_deps $CONFIG_LIST       \
4803            $CONFIG_EXTRA      \
4804            $HAVE_LIST         \
4805            $ALL_COMPONENTS    \
4806
4807 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"
4808
4809
4810 if test $target_os = "haiku"; then
4811     disable memalign
4812     disable posix_memalign
4813 fi
4814
4815 ! enabled_any memalign posix_memalign aligned_malloc &&
4816     enabled_any $need_memalign && enable memalign_hack
4817
4818 # add_dep lib dep
4819 # -> enable ${lib}_deps_${dep}
4820 # -> add $dep to ${lib}_deps only once
4821 add_dep() {
4822     lib=$1
4823     dep=$2
4824     enabled "${lib}_deps_${dep}" && return 0
4825     enable  "${lib}_deps_${dep}"
4826     prepend "${lib}_deps" $dep
4827 }
4828
4829 # merge deps lib components
4830 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4831 merge_deps() {
4832     lib=$1
4833     shift
4834     for comp in $*; do
4835         enabled $comp || continue
4836         eval "dep=\"\$${comp}_deps\""
4837         for d in $dep; do
4838             add_dep $lib $d
4839         done
4840     done
4841 }
4842
4843 merge_deps libavfilter $FILTER_LIST
4844
4845 echo "install prefix            $prefix"
4846 echo "source path               $source_path"
4847 echo "C compiler                $cc"
4848 echo "C library                 $libc_type"
4849 if test "$host_cc" != "$cc"; then
4850     echo "host C compiler           $host_cc"
4851     echo "host C library            $host_libc_type"
4852 fi
4853 echo "ARCH                      $arch ($cpu)"
4854 if test "$build_suffix" != ""; then
4855     echo "build suffix              $build_suffix"
4856 fi
4857 if test "$progs_suffix" != ""; then
4858     echo "progs suffix              $progs_suffix"
4859 fi
4860 if test "$extra_version" != ""; then
4861     echo "version string suffix     $extra_version"
4862 fi
4863 echo "big-endian                ${bigendian-no}"
4864 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4865 if enabled x86; then
4866     echo "${yasmexe}                      ${yasm-no}"
4867     echo "MMX enabled               ${mmx-no}"
4868     echo "MMXEXT enabled            ${mmxext-no}"
4869     echo "3DNow! enabled            ${amd3dnow-no}"
4870     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4871     echo "SSE enabled               ${sse-no}"
4872     echo "SSSE3 enabled             ${ssse3-no}"
4873     echo "AVX enabled               ${avx-no}"
4874     echo "FMA4 enabled              ${fma4-no}"
4875     echo "i686 features enabled     ${i686-no}"
4876     echo "CMOV is fast              ${fast_cmov-no}"
4877     echo "EBX available             ${ebx_available-no}"
4878     echo "EBP available             ${ebp_available-no}"
4879 fi
4880 if enabled aarch64; then
4881     echo "NEON enabled              ${neon-no}"
4882     echo "VFP enabled               ${vfp-no}"
4883 fi
4884 if enabled arm; then
4885     echo "ARMv5TE enabled           ${armv5te-no}"
4886     echo "ARMv6 enabled             ${armv6-no}"
4887     echo "ARMv6T2 enabled           ${armv6t2-no}"
4888     echo "VFP enabled               ${vfp-no}"
4889     echo "NEON enabled              ${neon-no}"
4890     echo "THUMB enabled             ${thumb-no}"
4891 fi
4892 if enabled mips; then
4893     echo "MIPS FPU enabled          ${mipsfpu-no}"
4894     echo "MIPS32R2 enabled          ${mips32r2-no}"
4895     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4896     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4897 fi
4898 if enabled ppc; then
4899     echo "AltiVec enabled           ${altivec-no}"
4900     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4901     echo "dcbzl available           ${dcbzl-no}"
4902 fi
4903 if enabled sparc; then
4904     echo "VIS enabled               ${vis-no}"
4905 fi
4906 echo "debug symbols             ${debug-no}"
4907 echo "strip symbols             ${stripping-no}"
4908 echo "optimize for size         ${small-no}"
4909 echo "optimizations             ${optimizations-no}"
4910 echo "static                    ${static-no}"
4911 echo "shared                    ${shared-no}"
4912 echo "postprocessing support    ${postproc-no}"
4913 echo "new filter support        ${avfilter-no}"
4914 echo "network support           ${network-no}"
4915 echo "threading support         ${thread_type-no}"
4916 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4917 echo "SDL support               ${sdl-no}"
4918 echo "opencl enabled            ${opencl-no}"
4919 echo "libzvbi enabled           ${libzvbi-no}"
4920 echo "texi2html enabled         ${texi2html-no}"
4921 echo "perl enabled              ${perl-no}"
4922 echo "pod2man enabled           ${pod2man-no}"
4923 echo "makeinfo enabled          ${makeinfo-no}"
4924 test -n "$random_seed" &&
4925     echo "random seed               ${random_seed}"
4926 echo
4927
4928 echo "External libraries:"
4929 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4930 echo
4931
4932 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4933     echo "Enabled ${type}s:"
4934     eval list=\$$(toupper $type)_LIST
4935     print_enabled '_*' $list | print_3_columns
4936     echo
4937 done
4938
4939 license="LGPL version 2.1 or later"
4940 if enabled nonfree; then
4941     license="nonfree and unredistributable"
4942 elif enabled gplv3; then
4943     license="GPL version 3 or later"
4944 elif enabled lgplv3; then
4945     license="LGPL version 3 or later"
4946 elif enabled gpl; then
4947     license="GPL version 2 or later"
4948 fi
4949
4950 echo "License: $license"
4951
4952 echo "Creating config.mak, config.h, and doc/config.texi..."
4953
4954 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4955
4956 enabled stripping || strip="echo skipping strip"
4957
4958 config_files="$TMPH config.mak doc/config.texi"
4959
4960 cat > config.mak <<EOF
4961 # Automatically generated by configure - do not modify!
4962 ifndef FFMPEG_CONFIG_MAK
4963 FFMPEG_CONFIG_MAK=1
4964 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4965 prefix=$prefix
4966 LIBDIR=\$(DESTDIR)$libdir
4967 SHLIBDIR=\$(DESTDIR)$shlibdir
4968 INCDIR=\$(DESTDIR)$incdir
4969 BINDIR=\$(DESTDIR)$bindir
4970 DATADIR=\$(DESTDIR)$datadir
4971 DOCDIR=\$(DESTDIR)$docdir
4972 MANDIR=\$(DESTDIR)$mandir
4973 SRC_PATH=$source_path
4974 ifndef MAIN_MAKEFILE
4975 SRC_PATH:=\$(SRC_PATH:.%=..%)
4976 endif
4977 CC_IDENT=$cc_ident
4978 ARCH=$arch
4979 CC=$cc
4980 CXX=$cxx
4981 AS=$as
4982 LD=$ld
4983 DEPCC=$dep_cc
4984 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4985 DEPAS=$as
4986 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4987 YASM=$yasmexe
4988 DEPYASM=$yasmexe
4989 AR=$ar
4990 ARFLAGS=$arflags
4991 AR_O=$ar_o
4992 RANLIB=$ranlib
4993 STRIP=$strip
4994 CP=cp -p
4995 LN_S=$ln_s
4996 CPPFLAGS=$CPPFLAGS
4997 CFLAGS=$CFLAGS
4998 CXXFLAGS=$CXXFLAGS
4999 ASFLAGS=$ASFLAGS
5000 AS_C=$AS_C
5001 AS_O=$AS_O
5002 CC_C=$CC_C
5003 CC_E=$CC_E
5004 CC_O=$CC_O
5005 CXX_C=$CXX_C
5006 CXX_O=$CXX_O
5007 LD_O=$LD_O
5008 LD_LIB=$LD_LIB
5009 LD_PATH=$LD_PATH
5010 DLLTOOL=$dlltool
5011 WINDRES=$windres
5012 DEPWINDRES=$dep_cc
5013 LDFLAGS=$LDFLAGS
5014 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5015 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5016 YASMFLAGS=$YASMFLAGS
5017 BUILDSUF=$build_suffix
5018 PROGSSUF=$progs_suffix
5019 FULLNAME=$FULLNAME
5020 LIBPREF=$LIBPREF
5021 LIBSUF=$LIBSUF
5022 LIBNAME=$LIBNAME
5023 SLIBPREF=$SLIBPREF
5024 SLIBSUF=$SLIBSUF
5025 EXESUF=$EXESUF
5026 EXTRA_VERSION=$extra_version
5027 CCDEP=$CCDEP
5028 CXXDEP=$CXXDEP
5029 CCDEP_FLAGS=$CCDEP_FLAGS
5030 ASDEP=$ASDEP
5031 ASDEP_FLAGS=$ASDEP_FLAGS
5032 CC_DEPFLAGS=$CC_DEPFLAGS
5033 AS_DEPFLAGS=$AS_DEPFLAGS
5034 HOSTCC=$host_cc
5035 HOSTLD=$host_ld
5036 HOSTCFLAGS=$host_cflags
5037 HOSTCPPFLAGS=$host_cppflags
5038 HOSTEXESUF=$HOSTEXESUF
5039 HOSTLDFLAGS=$host_ldflags
5040 HOSTLIBS=$host_libs
5041 DEPHOSTCC=$host_cc
5042 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5043 HOSTCCDEP=$HOSTCCDEP
5044 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5045 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5046 HOSTCC_C=$HOSTCC_C
5047 HOSTCC_O=$HOSTCC_O
5048 HOSTLD_O=$HOSTLD_O
5049 TARGET_EXEC=$target_exec $target_exec_args
5050 TARGET_PATH=$target_path
5051 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5052 LIBS-ffplay=$sdl_libs
5053 CFLAGS-ffplay=$sdl_cflags
5054 ZLIB=$($ldflags_filter -lz)
5055 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5056 EXTRALIBS=$extralibs
5057 COMPAT_OBJS=$compat_objs
5058 EXEOBJS=$exeobjs
5059 INSTALL=$install
5060 LIBTARGET=${LIBTARGET}
5061 SLIBNAME=${SLIBNAME}
5062 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5063 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5064 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5065 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5066 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5067 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5068 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5069 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5070 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5071 NOREDZONE_FLAGS=$noredzone_flags
5072 EOF
5073
5074 get_version(){
5075     lcname=lib${1}
5076     name=$(toupper $lcname)
5077     file=$source_path/$lcname/version.h
5078     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5079     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5080     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5081     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5082     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5083     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5084 }
5085
5086 map 'get_version $v' $LIBRARY_LIST
5087
5088 cat > $TMPH <<EOF
5089 /* Automatically generated by configure - do not modify! */
5090 #ifndef FFMPEG_CONFIG_H
5091 #define FFMPEG_CONFIG_H
5092 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5093 #define FFMPEG_LICENSE "$(c_escape $license)"
5094 #define CONFIG_THIS_YEAR 2014
5095 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5096 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5097 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5098 #define av_restrict $_restrict
5099 #define EXTERN_PREFIX "${extern_prefix}"
5100 #define EXTERN_ASM ${extern_prefix}
5101 #define BUILDSUF "$build_suffix"
5102 #define SLIBSUF "$SLIBSUF"
5103 #define HAVE_MMX2 HAVE_MMXEXT
5104 EOF
5105
5106 test -n "$assert_level" &&
5107     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5108
5109 test -n "$malloc_prefix" &&
5110     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5111
5112 if enabled yasm; then
5113     append config_files $TMPASM
5114     printf '' >$TMPASM
5115 fi
5116
5117 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5118
5119
5120 mkdir -p doc
5121 echo "@c auto-generated by configure" > doc/config.texi
5122
5123 print_config ARCH_   "$config_files" $ARCH_LIST
5124 print_config HAVE_   "$config_files" $HAVE_LIST
5125 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5126                                      $CONFIG_EXTRA      \
5127                                      $ALL_COMPONENTS    \
5128
5129 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5130 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5131
5132 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5133 cp_if_changed $TMPH config.h
5134 touch .config
5135
5136 enabled yasm && cp_if_changed $TMPASM config.asm
5137
5138 cat > $TMPH <<EOF
5139 /* Generated by ffconf */
5140 #ifndef AVUTIL_AVCONFIG_H
5141 #define AVUTIL_AVCONFIG_H
5142 EOF
5143
5144 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5145
5146 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5147
5148 cp_if_changed $TMPH libavutil/avconfig.h
5149
5150 if test -n "$WARNINGS"; then
5151     printf "\n$WARNINGS"
5152     enabled fatal_warnings && exit 1
5153 fi
5154
5155 # build pkg-config files
5156
5157 pkgconfig_generate(){
5158     name=$1
5159     shortname=${name#lib}${build_suffix}
5160     comment=$2
5161     version=$3
5162     libs=$4
5163     requires=$5
5164     enabled ${name#lib} || return 0
5165     mkdir -p $name
5166     cat <<EOF > $name/$name${build_suffix}.pc
5167 prefix=$prefix
5168 exec_prefix=\${prefix}
5169 libdir=$libdir
5170 includedir=$incdir
5171
5172 Name: $name
5173 Description: $comment
5174 Version: $version
5175 Requires: $(enabled shared || echo $requires)
5176 Requires.private: $(enabled shared && echo $requires)
5177 Conflicts:
5178 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5179 Libs.private: $(enabled shared && echo $libs)
5180 Cflags: -I\${includedir}
5181 EOF
5182
5183 mkdir -p doc/examples/pc-uninstalled
5184 includedir=${source_path}
5185 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5186     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5187 prefix=
5188 exec_prefix=
5189 libdir=\${pcfiledir}/../../../$name
5190 includedir=${includedir}
5191
5192 Name: $name
5193 Description: $comment
5194 Version: $version
5195 Requires: $requires
5196 Conflicts:
5197 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5198 Cflags: -I\${includedir}
5199 EOF
5200 }
5201
5202 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5203 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5204 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5205 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5206 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5207 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5208 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5209 lavfi_libs=${lavfi_libs%, }
5210
5211 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5212 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5213
5214 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5215 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5216 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5217 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5218 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5219 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5220 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5221 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5222 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"