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     lgplv3
1683     lpc
1684     mpegaudio
1685     mpegaudiodsp
1686     mpegvideo
1687     mpegvideoenc
1688     nettle
1689     rangecoder
1690     riffdec
1691     riffenc
1692     rtpdec
1693     rtpenc_chain
1694     sinewin
1695     videodsp
1696     vp3dsp
1697 "
1698
1699 CMDLINE_SELECT="
1700     $ARCH_EXT_LIST
1701     $CONFIG_LIST
1702     $HAVE_LIST_CMDLINE
1703     $THREADS_LIST
1704     asm
1705     cross_compile
1706     debug
1707     extra_warnings
1708     logging
1709     lto
1710     optimizations
1711     rpath
1712     stripping
1713 "
1714
1715 PATHS_LIST='
1716     bindir
1717     datadir
1718     docdir
1719     incdir
1720     libdir
1721     mandir
1722     prefix
1723     shlibdir
1724 '
1725
1726 CMDLINE_SET="
1727     $PATHS_LIST
1728     ar
1729     arch
1730     as
1731     assert_level
1732     build_suffix
1733     cc
1734     cpu
1735     cross_prefix
1736     cxx
1737     dep_cc
1738     extra_version
1739     host_cc
1740     host_cflags
1741     host_ld
1742     host_ldflags
1743     host_libs
1744     host_os
1745     install
1746     ld
1747     logfile
1748     malloc_prefix
1749     nm
1750     optflags
1751     pkg_config
1752     progs_suffix
1753     random_seed
1754     samples
1755     strip
1756     sysinclude
1757     sysroot
1758     target_exec
1759     target_os
1760     target_path
1761     target_samples
1762     tempprefix
1763     toolchain
1764     valgrind
1765     yasmexe
1766 "
1767
1768 CMDLINE_APPEND="
1769     extra_cflags
1770     extra_cxxflags
1771     host_cppflags
1772 "
1773
1774 # code dependency declarations
1775
1776 # architecture extensions
1777
1778 armv5te_deps="arm"
1779 armv6_deps="arm"
1780 armv6t2_deps="arm"
1781 neon_deps="arm"
1782 vfp_deps="arm"
1783 vfpv3_deps="vfp"
1784
1785 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1786
1787 mipsfpu_deps="mips"
1788 mips32r2_deps="mips"
1789 mipsdspr1_deps="mips"
1790 mipsdspr2_deps="mips"
1791
1792 altivec_deps="ppc"
1793 ppc4xx_deps="ppc"
1794
1795 vis_deps="sparc"
1796
1797 cpunop_deps="i686"
1798 x86_64_select="i686"
1799 x86_64_suggest="fast_cmov"
1800
1801 amd3dnow_deps="mmx"
1802 amd3dnowext_deps="amd3dnow"
1803 mmx_deps="x86"
1804 mmxext_deps="mmx"
1805 sse_deps="mmxext"
1806 sse2_deps="sse"
1807 sse3_deps="sse2"
1808 ssse3_deps="sse3"
1809 sse4_deps="ssse3"
1810 sse42_deps="sse4"
1811 avx_deps="sse42"
1812 fma4_deps="avx"
1813 avx2_deps="avx"
1814
1815 mmx_external_deps="yasm"
1816 mmx_inline_deps="inline_asm"
1817 mmx_suggest="mmx_external mmx_inline"
1818
1819 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1820     eval dep=\$${ext}_deps
1821     eval ${ext}_external_deps='"${dep}_external"'
1822     eval ${ext}_inline_deps='"${dep}_inline"'
1823     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1824 done
1825
1826 aligned_stack_if_any="ppc x86"
1827 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1828 fast_clz_if_any="alpha avr32 mips ppc x86"
1829 fast_unaligned_if_any="ppc x86"
1830
1831 need_memalign="altivec neon sse"
1832
1833 # system capabilities
1834 log2_deps="!libc_msvcrt"
1835
1836 symver_if_any="symver_asm_label symver_gnu_asm"
1837
1838 # threading support
1839 atomics_gcc_if="sync_val_compare_and_swap"
1840 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1841 atomics_win32_if="MemoryBarrier"
1842 atomics_native_if_any="$ATOMICS_LIST"
1843 threads_if_any="$THREADS_LIST"
1844
1845 # subsystems
1846 dct_select="rdft"
1847 error_resilience_select="dsputil"
1848 frame_thread_encoder_deps="encoders threads"
1849 lpc_select="dsputil"
1850 mdct_select="fft"
1851 rdft_select="fft"
1852 mpegaudio_select="mpegaudiodsp"
1853 mpegaudiodsp_select="dct"
1854 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1855 mpegvideoenc_select="mpegvideo"
1856
1857 # decoders / encoders
1858 aac_decoder_select="mdct sinewin"
1859 aac_encoder_select="audio_frame_queue mdct sinewin"
1860 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1861 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1862 ac3_encoder_select="mdct ac3dsp dsputil"
1863 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1864 aic_decoder_select="dsputil golomb"
1865 alac_encoder_select="lpc"
1866 als_decoder_select="dsputil"
1867 amrnb_decoder_select="lsp"
1868 amrwb_decoder_select="lsp"
1869 amv_decoder_select="dsputil hpeldsp exif"
1870 amv_encoder_select="aandcttables"
1871 ape_decoder_select="dsputil"
1872 asv1_decoder_select="dsputil"
1873 asv1_encoder_select="dsputil"
1874 asv2_decoder_select="dsputil"
1875 asv2_encoder_select="dsputil"
1876 atrac1_decoder_select="mdct sinewin"
1877 atrac3_decoder_select="mdct"
1878 atrac3p_decoder_select="mdct sinewin"
1879 avrn_decoder_select="exif"
1880 bink_decoder_select="dsputil hpeldsp"
1881 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1882 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1883 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1884 cllc_decoder_select="dsputil"
1885 comfortnoise_encoder_select="lpc"
1886 cook_decoder_select="dsputil mdct sinewin"
1887 cscd_decoder_select="lzo"
1888 cscd_decoder_suggest="zlib"
1889 dca_decoder_select="mdct"
1890 dirac_decoder_select="dsputil dwt golomb videodsp"
1891 dnxhd_decoder_select="dsputil"
1892 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1893 dvvideo_decoder_select="dsputil"
1894 dvvideo_encoder_select="dsputil"
1895 dxa_decoder_select="zlib"
1896 eac3_decoder_select="ac3_decoder"
1897 eac3_encoder_select="ac3_encoder"
1898 eamad_decoder_select="aandcttables dsputil mpegvideo"
1899 eatgq_decoder_select="aandcttables"
1900 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1901 exr_decoder_select="zlib"
1902 ffv1_decoder_select="dsputil golomb rangecoder"
1903 ffv1_encoder_select="dsputil rangecoder"
1904 ffvhuff_decoder_select="dsputil"
1905 ffvhuff_encoder_select="dsputil huffman"
1906 flac_decoder_select="golomb"
1907 flac_encoder_select="dsputil golomb lpc"
1908 flashsv_decoder_select="zlib"
1909 flashsv_encoder_select="zlib"
1910 flashsv2_encoder_select="zlib"
1911 flashsv2_decoder_select="zlib"
1912 flv_decoder_select="h263_decoder"
1913 flv_encoder_select="h263_encoder"
1914 fourxm_decoder_select="dsputil"
1915 fraps_decoder_select="dsputil huffman"
1916 g2m_decoder_select="dsputil zlib"
1917 g729_decoder_select="dsputil"
1918 h261_decoder_select="error_resilience mpegvideo"
1919 h261_encoder_select="aandcttables mpegvideoenc"
1920 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1921 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1922 h263i_decoder_select="h263_decoder"
1923 h263p_encoder_select="h263_encoder"
1924 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1925 h264_decoder_suggest="error_resilience"
1926 hevc_decoder_select="dsputil golomb videodsp"
1927 huffyuv_decoder_select="dsputil"
1928 huffyuv_encoder_select="dsputil huffman"
1929 iac_decoder_select="dsputil fft mdct sinewin"
1930 imc_decoder_select="dsputil fft mdct sinewin"
1931 indeo3_decoder_select="hpeldsp"
1932 interplay_video_decoder_select="hpeldsp"
1933 jpegls_decoder_select="dsputil golomb hpeldsp exif"
1934 jpegls_encoder_select="golomb"
1935 jv_decoder_select="dsputil"
1936 lagarith_decoder_select="dsputil"
1937 ljpeg_encoder_select="aandcttables mpegvideoenc"
1938 loco_decoder_select="golomb"
1939 mdec_decoder_select="dsputil error_resilience mpegvideo"
1940 metasound_decoder_select="lsp mdct sinewin"
1941 mimic_decoder_select="dsputil hpeldsp"
1942 mjpeg_decoder_select="dsputil hpeldsp exif"
1943 mjpegb_decoder_select="dsputil hpeldsp exif"
1944 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1945 mlp_decoder_select="dsputil mlp_parser"
1946 motionpixels_decoder_select="dsputil"
1947 mp1_decoder_select="mpegaudio"
1948 mp1float_decoder_select="mpegaudio"
1949 mp2_decoder_select="mpegaudio"
1950 mp2float_decoder_select="mpegaudio"
1951 mp3_decoder_select="mpegaudio"
1952 mp3adu_decoder_select="mpegaudio"
1953 mp3adufloat_decoder_select="mpegaudio"
1954 mp3float_decoder_select="mpegaudio"
1955 mp3on4_decoder_select="mpegaudio"
1956 mp3on4float_decoder_select="mpegaudio"
1957 mpc7_decoder_select="dsputil mpegaudiodsp"
1958 mpc8_decoder_select="dsputil mpegaudiodsp"
1959 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1960 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1961 mpeg1video_decoder_select="error_resilience mpegvideo"
1962 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1963 mpeg2video_decoder_select="error_resilience mpegvideo"
1964 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1965 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1966 mpeg4_encoder_select="h263_encoder"
1967 msmpeg4v1_decoder_select="h263_decoder"
1968 msmpeg4v2_decoder_select="h263_decoder"
1969 msmpeg4v2_encoder_select="h263_encoder"
1970 msmpeg4v3_decoder_select="h263_decoder"
1971 msmpeg4v3_encoder_select="h263_encoder"
1972 mss2_decoder_select="error_resilience vc1_decoder"
1973 mxpeg_decoder_select="dsputil hpeldsp exif"
1974 nellymoser_decoder_select="mdct sinewin"
1975 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1976 nuv_decoder_select="dsputil lzo"
1977 png_decoder_select="zlib"
1978 png_encoder_select="dsputil zlib"
1979 prores_decoder_select="dsputil"
1980 prores_encoder_select="dsputil"
1981 qcelp_decoder_select="lsp"
1982 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1983 ra_144_encoder_select="audio_frame_queue lpc"
1984 ralf_decoder_select="golomb"
1985 rtjpeg_decoder_select="dsputil"
1986 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1987 rv10_encoder_select="h263_encoder"
1988 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1989 rv20_encoder_select="h263_encoder"
1990 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1991 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1992 shorten_decoder_select="golomb"
1993 sipr_decoder_select="lsp"
1994 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1995 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1996 sonic_decoder_select="golomb"
1997 sonic_encoder_select="golomb"
1998 sonic_ls_encoder_select="golomb"
1999 sp5x_decoder_select="dsputil hpeldsp exif"
2000 svq1_decoder_select="hpeldsp"
2001 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2002 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
2003 svq3_decoder_suggest="error_resilience zlib"
2004 tak_decoder_select="dsputil"
2005 theora_decoder_select="vp3_decoder"
2006 tiff_decoder_suggest="zlib"
2007 tiff_encoder_suggest="zlib"
2008 thp_decoder_select="dsputil hpeldsp exif"
2009 truehd_decoder_select="mlp_parser"
2010 truemotion2_decoder_select="dsputil"
2011 truespeech_decoder_select="dsputil"
2012 tscc_decoder_select="zlib"
2013 twinvq_decoder_select="mdct lsp sinewin"
2014 utvideo_decoder_select="dsputil"
2015 utvideo_encoder_select="dsputil huffman"
2016 vble_decoder_select="dsputil"
2017 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
2018 vc1image_decoder_select="vc1_decoder"
2019 vorbis_decoder_select="mdct"
2020 vorbis_encoder_select="mdct"
2021 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2022 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2023 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2024 vp6a_decoder_select="vp6_decoder"
2025 vp6f_decoder_select="vp6_decoder"
2026 vp8_decoder_select="h264pred videodsp"
2027 vp9_decoder_select="videodsp"
2028 webp_decoder_select="vp8_decoder"
2029 wmapro_decoder_select="mdct sinewin"
2030 wmav1_decoder_select="mdct sinewin"
2031 wmav1_encoder_select="mdct sinewin"
2032 wmav2_decoder_select="mdct sinewin"
2033 wmav2_encoder_select="mdct sinewin"
2034 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2035 wmv1_decoder_select="h263_decoder"
2036 wmv1_encoder_select="h263_encoder"
2037 wmv2_decoder_select="h263_decoder videodsp"
2038 wmv2_encoder_select="h263_encoder"
2039 wmv3_decoder_select="vc1_decoder"
2040 wmv3image_decoder_select="wmv3_decoder"
2041 zerocodec_decoder_select="zlib"
2042 zlib_decoder_select="zlib"
2043 zlib_encoder_select="zlib"
2044 zmbv_decoder_select="zlib"
2045 zmbv_encoder_select="zlib"
2046
2047 # hardware accelerators
2048 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2049 dxva2_deps="dxva2api_h"
2050 vaapi_deps="va_va_h"
2051 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2052 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2053 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2054 xvmc_deps="X11_extensions_XvMClib_h"
2055
2056 h263_vaapi_hwaccel_deps="vaapi"
2057 h263_vaapi_hwaccel_select="h263_decoder"
2058 h263_vdpau_hwaccel_deps="vdpau"
2059 h263_vdpau_hwaccel_select="h263_decoder"
2060 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2061 h264_dxva2_hwaccel_deps="dxva2"
2062 h264_dxva2_hwaccel_select="h264_decoder"
2063 h264_vaapi_hwaccel_deps="vaapi"
2064 h264_vaapi_hwaccel_select="h264_decoder"
2065 h264_vda_decoder_deps="vda"
2066 h264_vda_decoder_select="h264_decoder"
2067 h264_vda_hwaccel_deps="vda"
2068 h264_vda_hwaccel_select="h264_decoder"
2069 h264_vdpau_decoder_deps="vdpau"
2070 h264_vdpau_decoder_select="h264_decoder"
2071 h264_vdpau_hwaccel_deps="vdpau"
2072 h264_vdpau_hwaccel_select="h264_decoder"
2073 mpeg_vdpau_decoder_deps="vdpau"
2074 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2075 mpeg_xvmc_hwaccel_deps="xvmc"
2076 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2077 mpeg1_vdpau_decoder_deps="vdpau"
2078 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2079 mpeg1_vdpau_hwaccel_deps="vdpau"
2080 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2081 mpeg1_xvmc_hwaccel_deps="xvmc"
2082 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2083 mpeg2_crystalhd_decoder_select="crystalhd"
2084 mpeg2_dxva2_hwaccel_deps="dxva2"
2085 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2086 mpeg2_vaapi_hwaccel_deps="vaapi"
2087 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2088 mpeg2_vdpau_hwaccel_deps="vdpau"
2089 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2090 mpeg2_xvmc_hwaccel_deps="xvmc"
2091 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2092 mpeg4_crystalhd_decoder_select="crystalhd"
2093 mpeg4_vaapi_hwaccel_deps="vaapi"
2094 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2095 mpeg4_vdpau_decoder_deps="vdpau"
2096 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2097 mpeg4_vdpau_hwaccel_deps="vdpau"
2098 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2099 msmpeg4_crystalhd_decoder_select="crystalhd"
2100 vc1_crystalhd_decoder_select="crystalhd"
2101 vc1_dxva2_hwaccel_deps="dxva2"
2102 vc1_dxva2_hwaccel_select="vc1_decoder"
2103 vc1_vaapi_hwaccel_deps="vaapi"
2104 vc1_vaapi_hwaccel_select="vc1_decoder"
2105 vc1_vdpau_decoder_deps="vdpau"
2106 vc1_vdpau_decoder_select="vc1_decoder"
2107 vc1_vdpau_hwaccel_deps="vdpau"
2108 vc1_vdpau_hwaccel_select="vc1_decoder"
2109 wmv3_crystalhd_decoder_select="crystalhd"
2110 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2111 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2112 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2113 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2114
2115 # parsers
2116 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
2117 hevc_parser_select="hevc_decoder"
2118 mpeg4video_parser_select="error_resilience mpegvideo"
2119 mpegvideo_parser_select="error_resilience mpegvideo"
2120 vc1_parser_select="mpegvideo"
2121
2122 # external libraries
2123 libaacplus_encoder_deps="libaacplus"
2124 libcelt_decoder_deps="libcelt"
2125 libfaac_encoder_deps="libfaac"
2126 libfaac_encoder_select="audio_frame_queue"
2127 libfdk_aac_decoder_deps="libfdk_aac"
2128 libfdk_aac_encoder_deps="libfdk_aac"
2129 libfdk_aac_encoder_select="audio_frame_queue"
2130 libgme_demuxer_deps="libgme"
2131 libgsm_decoder_deps="libgsm"
2132 libgsm_encoder_deps="libgsm"
2133 libgsm_ms_decoder_deps="libgsm"
2134 libgsm_ms_encoder_deps="libgsm"
2135 libilbc_decoder_deps="libilbc"
2136 libilbc_encoder_deps="libilbc"
2137 libmodplug_demuxer_deps="libmodplug"
2138 libmp3lame_encoder_deps="libmp3lame"
2139 libmp3lame_encoder_select="audio_frame_queue"
2140 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2141 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2142 libopencore_amrnb_encoder_select="audio_frame_queue"
2143 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2144 libopenjpeg_decoder_deps="libopenjpeg"
2145 libopenjpeg_encoder_deps="libopenjpeg"
2146 libopus_decoder_deps="libopus"
2147 libopus_encoder_deps="libopus"
2148 libopus_encoder_select="audio_frame_queue"
2149 libquvi_demuxer_deps="libquvi"
2150 libschroedinger_decoder_deps="libschroedinger"
2151 libschroedinger_encoder_deps="libschroedinger"
2152 libshine_encoder_deps="libshine"
2153 libshine_encoder_select="audio_frame_queue"
2154 libspeex_decoder_deps="libspeex"
2155 libspeex_encoder_deps="libspeex"
2156 libspeex_encoder_select="audio_frame_queue"
2157 libstagefright_h264_decoder_deps="libstagefright_h264"
2158 libtheora_encoder_deps="libtheora"
2159 libtwolame_encoder_deps="libtwolame"
2160 libvo_aacenc_encoder_deps="libvo_aacenc"
2161 libvo_aacenc_encoder_select="audio_frame_queue"
2162 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2163 libvorbis_decoder_deps="libvorbis"
2164 libvorbis_encoder_deps="libvorbis"
2165 libvorbis_encoder_select="audio_frame_queue"
2166 libvpx_vp8_decoder_deps="libvpx"
2167 libvpx_vp8_encoder_deps="libvpx"
2168 libvpx_vp9_decoder_deps="libvpx"
2169 libvpx_vp9_encoder_deps="libvpx"
2170 libwavpack_encoder_deps="libwavpack"
2171 libwebp_encoder_deps="libwebp"
2172 libx264_encoder_deps="libx264"
2173 libx264rgb_encoder_deps="libx264"
2174 libxavs_encoder_deps="libxavs"
2175 libxvid_encoder_deps="libxvid"
2176 libutvideo_decoder_deps="libutvideo"
2177 libutvideo_encoder_deps="libutvideo"
2178 libzvbi_teletext_decoder_deps="libzvbi"
2179
2180 # demuxers / muxers
2181 ac3_demuxer_select="ac3_parser"
2182 asf_demuxer_select="riffdec"
2183 asf_muxer_select="riffenc"
2184 asf_stream_muxer_select="asf_muxer"
2185 avi_demuxer_select="riffdec"
2186 avi_muxer_select="riffenc"
2187 avisynth_demuxer_deps="avisynth"
2188 avisynth_demuxer_select="riffdec"
2189 caf_demuxer_select="riffdec"
2190 dirac_demuxer_select="dirac_parser"
2191 dts_demuxer_select="dca_parser"
2192 dtshd_demuxer_select="dca_parser"
2193 dxa_demuxer_select="riffdec"
2194 eac3_demuxer_select="ac3_parser"
2195 f4v_muxer_select="mov_muxer"
2196 flac_demuxer_select="flac_parser"
2197 hds_muxer_select="flv_muxer"
2198 hls_muxer_select="mpegts_muxer"
2199 ipod_muxer_select="mov_muxer"
2200 ismv_muxer_select="mov_muxer"
2201 libnut_demuxer_deps="libnut"
2202 libnut_muxer_deps="libnut"
2203 matroska_audio_muxer_select="matroska_muxer"
2204 matroska_demuxer_select="riffdec"
2205 matroska_demuxer_suggest="bzlib lzo zlib"
2206 matroska_muxer_select="riffenc"
2207 mmf_muxer_select="riffenc"
2208 mov_demuxer_select="riffdec"
2209 mov_demuxer_suggest="zlib"
2210 mov_muxer_select="riffenc rtpenc_chain"
2211 mp3_demuxer_select="mpegaudio_parser"
2212 mp4_muxer_select="mov_muxer"
2213 mpegts_muxer_select="adts_muxer latm_muxer"
2214 mpegtsraw_demuxer_select="mpegts_demuxer"
2215 mxf_d10_muxer_select="mxf_muxer"
2216 nut_muxer_select="riffenc"
2217 nuv_demuxer_select="riffdec"
2218 ogg_demuxer_select="golomb"
2219 psp_muxer_select="mov_muxer"
2220 rtp_demuxer_select="sdp_demuxer"
2221 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2222 rtsp_demuxer_select="http_protocol rtpdec"
2223 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2224 sap_demuxer_select="sdp_demuxer"
2225 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2226 sdp_demuxer_select="rtpdec"
2227 smoothstreaming_muxer_select="ismv_muxer"
2228 spdif_muxer_select="aac_parser"
2229 tak_demuxer_select="tak_parser"
2230 tg2_muxer_select="mov_muxer"
2231 tgp_muxer_select="mov_muxer"
2232 vobsub_demuxer_select="mpegps_demuxer"
2233 w64_demuxer_select="wav_demuxer"
2234 w64_muxer_select="wav_muxer"
2235 wav_demuxer_select="riffdec"
2236 wav_muxer_select="riffenc"
2237 webm_muxer_select="riffenc"
2238 wtv_demuxer_select="riffdec"
2239 xmv_demuxer_select="riffdec"
2240 xwma_demuxer_select="riffdec"
2241
2242 # indevs / outdevs
2243 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2244 alsa_outdev_deps="alsa_asoundlib_h"
2245 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2246 caca_outdev_deps="libcaca"
2247 dshow_indev_deps="IBaseFilter"
2248 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2249 dv1394_indev_deps="dv1394"
2250 dv1394_indev_select="dv_demuxer"
2251 fbdev_indev_deps="linux_fb_h"
2252 fbdev_outdev_deps="linux_fb_h"
2253 iec61883_indev_deps="libiec61883"
2254 jack_indev_deps="jack_jack_h sem_timedwait"
2255 lavfi_indev_deps="avfilter"
2256 libcdio_indev_deps="libcdio"
2257 libdc1394_indev_deps="libdc1394"
2258 libv4l2_indev_deps="libv4l2"
2259 openal_indev_deps="openal"
2260 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2261 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2262 pulse_indev_deps="libpulse"
2263 pulse_outdev_deps="libpulse"
2264 sdl_outdev_deps="sdl"
2265 sndio_indev_deps="sndio_h"
2266 sndio_outdev_deps="sndio_h"
2267 v4l_indev_deps="linux_videodev_h"
2268 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2269 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2270 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2271 vfwcap_indev_extralibs="-lavicap32"
2272 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2273 xv_outdev_extralibs="-lXv -lX11 -lXext"
2274 x11grab_indev_deps="x11grab"
2275
2276 # protocols
2277 bluray_protocol_deps="libbluray"
2278 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2279 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2280 ffrtmpcrypt_protocol_select="tcp_protocol"
2281 ffrtmphttp_protocol_deps="!librtmp_protocol"
2282 ffrtmphttp_protocol_select="http_protocol"
2283 ftp_protocol_select="tcp_protocol"
2284 gopher_protocol_select="network"
2285 httpproxy_protocol_select="tcp_protocol"
2286 http_protocol_select="tcp_protocol"
2287 https_protocol_select="tls_protocol"
2288 librtmp_protocol_deps="librtmp"
2289 librtmpe_protocol_deps="librtmp"
2290 librtmps_protocol_deps="librtmp"
2291 librtmpt_protocol_deps="librtmp"
2292 librtmpte_protocol_deps="librtmp"
2293 libssh_protocol_deps="libssh"
2294 mmsh_protocol_select="http_protocol"
2295 mmst_protocol_select="network"
2296 rtmp_protocol_deps="!librtmp_protocol"
2297 rtmp_protocol_select="tcp_protocol"
2298 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2299 rtmps_protocol_deps="!librtmp_protocol"
2300 rtmps_protocol_select="tls_protocol"
2301 rtmpt_protocol_select="ffrtmphttp_protocol"
2302 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2303 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2304 rtp_protocol_select="udp_protocol"
2305 sctp_protocol_deps="struct_sctp_event_subscribe"
2306 sctp_protocol_select="network"
2307 srtp_protocol_select="rtp_protocol"
2308 tcp_protocol_select="network"
2309 tls_protocol_deps_any="openssl gnutls"
2310 tls_protocol_select="tcp_protocol"
2311 udp_protocol_select="network"
2312 unix_protocol_deps="sys_un_h"
2313 unix_protocol_select="network"
2314
2315 # filters
2316 aconvert_filter_deps="swresample"
2317 amovie_filter_deps="avcodec avformat"
2318 aresample_filter_deps="swresample"
2319 ass_filter_deps="libass"
2320 asyncts_filter_deps="avresample"
2321 atempo_filter_deps="avcodec"
2322 atempo_filter_select="rdft"
2323 azmq_filter_deps="libzmq"
2324 blackframe_filter_deps="gpl"
2325 boxblur_filter_deps="gpl"
2326 colormatrix_filter_deps="gpl"
2327 cropdetect_filter_deps="gpl"
2328 dctdnoiz_filter_deps="avcodec"
2329 dctdnoiz_filter_select="fft"
2330 delogo_filter_deps="gpl"
2331 deshake_filter_deps="avcodec"
2332 deshake_filter_select="dsputil"
2333 drawtext_filter_deps="libfreetype"
2334 ebur128_filter_deps="gpl"
2335 flite_filter_deps="libflite"
2336 frei0r_filter_deps="frei0r dlopen"
2337 frei0r_filter_extralibs='$ldl'
2338 frei0r_src_filter_deps="frei0r dlopen"
2339 frei0r_src_filter_extralibs='$ldl'
2340 geq_filter_deps="gpl"
2341 histeq_filter_deps="gpl"
2342 hqdn3d_filter_deps="gpl"
2343 interlace_filter_deps="gpl"
2344 kerndeint_filter_deps="gpl"
2345 ladspa_filter_deps="ladspa dlopen"
2346 mcdeint_filter_deps="avcodec gpl"
2347 movie_filter_deps="avcodec avformat"
2348 mp_filter_deps="gpl avcodec swscale inline_asm"
2349 mpdecimate_filter_deps="gpl avcodec"
2350 mptestsrc_filter_deps="gpl"
2351 negate_filter_deps="lut_filter"
2352 perspective_filter_deps="gpl"
2353 resample_filter_deps="avresample"
2354 ocv_filter_deps="libopencv"
2355 owdenoise_filter_deps="gpl"
2356 pan_filter_deps="swresample"
2357 phase_filter_deps="gpl"
2358 pp_filter_deps="gpl postproc"
2359 pullup_filter_deps="gpl"
2360 removelogo_filter_deps="avcodec avformat swscale"
2361 sab_filter_deps="gpl swscale"
2362 scale_filter_deps="swscale"
2363 smartblur_filter_deps="gpl swscale"
2364 showspectrum_filter_deps="avcodec"
2365 showspectrum_filter_select="rdft"
2366 spp_filter_deps="gpl avcodec"
2367 spp_filter_select="fft"
2368 stereo3d_filter_deps="gpl"
2369 subtitles_filter_deps="avformat avcodec libass"
2370 super2xsai_filter_deps="gpl"
2371 tinterlace_filter_deps="gpl"
2372 vidstabdetect_filter_deps="libvidstab"
2373 vidstabtransform_filter_deps="libvidstab"
2374 yadif_filter_deps="gpl"
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 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4059
4060 check_inline_asm inline_asm_labels '"1:\n"'
4061
4062 if enabled alpha; then
4063
4064     check_cflags -mieee
4065
4066 elif enabled arm; then
4067
4068     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4069 float func(float a, float b){ return a+b; }
4070 EOF
4071
4072     enabled thumb && check_cflags -mthumb || check_cflags -marm
4073     nogas=die
4074
4075     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4076         enable vfp_args
4077     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4078         case "${cross_prefix:-$cc}" in
4079             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4080             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4081 __asm__ (".eabi_attribute 28, 1");
4082 int main(void) { return 0; }
4083 EOF
4084         esac
4085         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4086     fi
4087
4088     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4089     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4090     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4091     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4092     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4093     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4094
4095     [ $target_os = linux ] ||
4096         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4097             $ARCH_EXT_LIST_ARM
4098
4099     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4100     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
4101
4102     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4103
4104 elif enabled mips; then
4105
4106     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4107     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4108      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4109     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4110      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4111     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4112      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4113     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4114      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4115
4116 elif enabled parisc; then
4117
4118     if enabled gcc; then
4119         case $($cc -dumpversion) in
4120             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4121         esac
4122     fi
4123
4124 elif enabled ppc; then
4125
4126     enable local_aligned_8 local_aligned_16
4127
4128     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4129     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4130     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4131     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4132
4133     # AltiVec flags: The FSF version of GCC differs from the Apple version
4134     if enabled altivec; then
4135         if ! enabled_any pic ppc64; then
4136             nogas=warn
4137         fi
4138         check_cflags -maltivec -mabi=altivec &&
4139         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4140         check_cflags -faltivec
4141
4142         # check if our compiler supports Motorola AltiVec C API
4143         check_cc <<EOF || disable altivec
4144 $inc_altivec_h
4145 int main(void) {
4146     vector signed int v1 = (vector signed int) { 0 };
4147     vector signed int v2 = (vector signed int) { 1 };
4148     v1 = vec_add(v1, v2);
4149     return 0;
4150 }
4151 EOF
4152
4153         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4154     fi
4155
4156 elif enabled sparc; then
4157
4158     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
4159
4160 elif enabled x86; then
4161
4162     check_builtin rdtsc    intrin.h   "__rdtsc()"
4163     check_builtin mm_empty mmintrin.h "_mm_empty()"
4164
4165     enable local_aligned_8 local_aligned_16
4166
4167     # check whether EBP is available on x86
4168     # As 'i' is stored on the stack, this program will crash
4169     # if the base pointer is used to access it because the
4170     # base pointer is cleared in the inline assembly code.
4171     check_exec_crash <<EOF && enable ebp_available
4172 volatile int i=0;
4173 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4174 return i;
4175 EOF
4176
4177     # check whether EBX is available on x86
4178     check_inline_asm ebx_available '""::"b"(0)' &&
4179         check_inline_asm ebx_available '"":::"%ebx"'
4180
4181     # check whether xmm clobbers are supported
4182     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4183
4184     # check whether binutils is new enough to compile SSSE3/MMXEXT
4185     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4186     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4187
4188     if ! disabled_any asm mmx yasm; then
4189         if check_cmd $yasmexe --version; then
4190             enabled x86_64 && yasm_extra="-m amd64"
4191             yasm_debug="-g dwarf2"
4192         elif check_cmd nasm -v; then
4193             yasmexe=nasm
4194             yasm_debug="-g -F dwarf"
4195             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4196         fi
4197
4198         YASMFLAGS="-f $objformat $yasm_extra"
4199         enabled pic               && append YASMFLAGS "-DPIC"
4200         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4201         case "$objformat" in
4202             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4203         esac
4204
4205         check_yasm "movbe ecx, [5]" && enable yasm ||
4206             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4207         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4208         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4209         check_yasm "CPU amdnop" && enable cpunop
4210     fi
4211
4212     case "$cpu" in
4213         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4214             disable fast_clz
4215         ;;
4216     esac
4217
4218 fi
4219
4220 if enabled asm; then
4221     as=${gas:=$as}
4222     check_as <<EOF && enable gnu_as || \
4223         $nogas "GNU assembler not found, install gas-preprocessor"
4224 .macro m n
4225 \n: .int 0
4226 .endm
4227 m x
4228 EOF
4229 fi
4230
4231 check_ldflags -Wl,--as-needed
4232
4233 if check_func dlopen; then
4234     ldl=
4235 elif check_func dlopen -ldl; then
4236     ldl=-ldl
4237 fi
4238
4239 if ! disabled network; then
4240     check_type "sys/types.h sys/socket.h" socklen_t
4241     check_type netdb.h "struct addrinfo"
4242     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4243     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4244     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4245     check_type netinet/in.h "struct sockaddr_in6"
4246     check_type poll.h "struct pollfd"
4247     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4248     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4249     check_type netinet/sctp.h "struct sctp_event_subscribe"
4250     check_func getaddrinfo $network_extralibs
4251     check_func getservbyport $network_extralibs
4252     # Prefer arpa/inet.h over winsock2
4253     if check_header arpa/inet.h ; then
4254         check_func closesocket
4255     elif check_header winsock2.h ; then
4256         check_func_headers winsock2.h closesocket -lws2 &&
4257             network_extralibs="-lws2" ||
4258         { check_func_headers winsock2.h closesocket -lws2_32 &&
4259             network_extralibs="-lws2_32"; } || disable winsock2_h network
4260         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4261         check_type ws2tcpip.h socklen_t
4262         check_type ws2tcpip.h "struct addrinfo"
4263         check_type ws2tcpip.h "struct group_source_req"
4264         check_type ws2tcpip.h "struct ip_mreq_source"
4265         check_type ws2tcpip.h "struct ipv6_mreq"
4266         check_type winsock2.h "struct pollfd"
4267         check_type ws2tcpip.h "struct sockaddr_in6"
4268         check_type ws2tcpip.h "struct sockaddr_storage"
4269         check_struct winsock2.h "struct sockaddr" sa_len
4270     else
4271         disable network
4272     fi
4273 fi
4274
4275 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4276 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4277
4278 check_func  access
4279 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4280 check_func  fcntl
4281 check_func  fork
4282 check_func_headers stdlib.h getenv
4283 check_func  gethrtime
4284 check_func  getopt
4285 check_func  getrusage
4286 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4287 check_func  gettimeofday
4288 check_func  inet_aton $network_extralibs
4289 check_func  isatty
4290 check_func  localtime_r
4291 check_func  ${malloc_prefix}memalign            && enable memalign
4292 check_func  mkstemp
4293 check_func  mmap
4294 check_func  mprotect
4295 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4296 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4297 check_func  setrlimit
4298 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4299 check_func  strerror_r
4300 check_func  sched_getaffinity
4301 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4302 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4303 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4304 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4305 check_builtin sarestart signal.h "SA_RESTART"
4306 check_func  sysconf
4307 check_func  sysctl
4308 check_func  usleep
4309 check_func_headers conio.h kbhit
4310 check_func_headers windows.h PeekNamedPipe
4311 check_func_headers io.h setmode
4312 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4313 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4314 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4315 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4316 check_func_headers windows.h GetProcessAffinityMask
4317 check_func_headers windows.h GetProcessTimes
4318 check_func_headers windows.h GetSystemTimeAsFileTime
4319 check_func_headers windows.h MapViewOfFile
4320 check_func_headers windows.h SetConsoleTextAttribute
4321 check_func_headers windows.h Sleep
4322 check_func_headers windows.h VirtualAlloc
4323 check_func_headers glob.h glob
4324 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4325
4326 check_header cl/cl.h
4327 check_header direct.h
4328 check_header dlfcn.h
4329 check_header dxva.h
4330 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4331 check_header io.h
4332 check_header libcrystalhd/libcrystalhd_if.h
4333 check_header malloc.h
4334 check_header poll.h
4335 check_header sys/mman.h
4336 check_header sys/param.h
4337 check_header sys/resource.h
4338 check_header sys/select.h
4339 check_header sys/time.h
4340 check_header sys/un.h
4341 check_header termios.h
4342 check_header unistd.h
4343 check_header vdpau/vdpau.h
4344 check_header vdpau/vdpau_x11.h
4345 check_header VideoDecodeAcceleration/VDADecoder.h
4346 check_header windows.h
4347 check_header X11/extensions/XvMClib.h
4348 check_header asm/types.h
4349
4350 if ! disabled w32threads && ! enabled pthreads; then
4351     check_func_headers "windows.h process.h" _beginthreadex &&
4352         enable w32threads || disable w32threads
4353 fi
4354
4355 # check for some common methods of building with pthread support
4356 # do this before the optional library checks as some of them require pthreads
4357 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4358     enable pthreads
4359     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4360         add_cflags -pthread
4361         add_extralibs -pthread
4362     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4363         add_cflags -pthreads
4364         add_extralibs -pthreads
4365     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4366         add_extralibs -lpthreadGC2
4367     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4368         :
4369     elif ! check_func pthread_join && ! check_func pthread_create; then
4370         disable pthreads
4371     fi
4372     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4373 fi
4374
4375 for thread in $THREADS_LIST; do
4376     if enabled $thread; then
4377         test -n "$thread_type" &&
4378             die "ERROR: Only one thread type must be selected." ||
4379             thread_type="$thread"
4380     fi
4381 done
4382
4383 if enabled pthreads; then
4384   check_func pthread_cancel
4385 fi
4386
4387 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4388 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4389
4390 check_lib math.h sin -lm && LIBM="-lm"
4391 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4392
4393 atan2f_args=2
4394 ldexpf_args=2
4395 powf_args=2
4396
4397 for func in $MATH_FUNCS; do
4398     eval check_mathfunc $func \${${func}_args:-1}
4399 done
4400
4401 # these are off by default, so fail if requested and not available
4402 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4403                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4404                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4405 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4406 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4407 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4408 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4409 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4410 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4411 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4412 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4413 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4414                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4415                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4416 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4417 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4418 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4419 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"
4420 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4421 enabled libfreetype       && require_libfreetype
4422 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4423 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4424                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4425                                done || die "ERROR: libgsm not found"; }
4426 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4427 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4428 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4429 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4430 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4431 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4432 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4433 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4434                                check_lib openjpeg.h opj_version -lopenjpeg ||
4435                                die "ERROR: libopenjpeg not found"; }
4436 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4437 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4438 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4439 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4440 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4441 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4442 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4443 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4444 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4445 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4446     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4447     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4448 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4449 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4450                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4451                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4452 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4453 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4454 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4455 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4456 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4457 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4458 enabled libvpx            && {
4459     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4460                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4461     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 ||
4462                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4463     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4464     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; } }
4465 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4466 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4467 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4468                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4469                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4470 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4471 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4472 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4473 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4474 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4475                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4476                                die "ERROR: openal not found"; } &&
4477                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4478                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4479 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4480                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4481                                die "ERROR: opencl not found"; } &&
4482                              { ! enabled_any w32threads os2threads ||
4483                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4484                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4485                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4486                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4487 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4488                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4489                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4490                                die "ERROR: openssl not found"; }
4491
4492 if enabled gnutls; then
4493     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4494     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4495 fi
4496
4497 # libdc1394 check
4498 if enabled libdc1394; then
4499     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4500         enable libdc1394_2; } ||
4501     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4502         enable libdc1394_1; } ||
4503     die "ERROR: No version of libdc1394 found "
4504 fi
4505
4506 SDL_CONFIG="${cross_prefix}sdl-config"
4507 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4508     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4509     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4510     enable sdl
4511 else
4512   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4513     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4514     sdl_libs=$("${SDL_CONFIG}" --libs)
4515     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4516     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4517     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4518     enable sdl
4519   fi
4520 fi
4521 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4522
4523 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4524 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4525 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4526 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4527 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4528
4529 check_header linux/fb.h
4530 check_header linux/videodev.h
4531 check_header linux/videodev2.h
4532 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4533
4534 check_header sys/videoio.h
4535
4536 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4537 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4538 # w32api 3.12 had it defined wrong
4539 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4540
4541 check_type "dshow.h" IBaseFilter
4542
4543 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4544 { check_header dev/bktr/ioctl_meteor.h &&
4545   check_header dev/bktr/ioctl_bt848.h; } ||
4546 { check_header machine/ioctl_meteor.h &&
4547   check_header machine/ioctl_bt848.h; } ||
4548 { check_header dev/video/meteor/ioctl_meteor.h &&
4549   check_header dev/video/bktr/ioctl_bt848.h; } ||
4550 check_header dev/ic/bt8xx.h
4551
4552 check_header sndio.h
4553 if check_struct sys/soundcard.h audio_buf_info bytes; then
4554     enable_safe sys/soundcard.h
4555 else
4556     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4557     #include <sys/soundcard.h>
4558     audio_buf_info abc;
4559 EOF
4560 fi
4561 check_header soundcard.h
4562
4563 enabled_any alsa_indev alsa_outdev &&
4564     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4565
4566 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4567     check_func jack_port_get_latency_range -ljack
4568
4569 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4570
4571 if enabled libcdio; then
4572     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4573     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4574     die "ERROR: libcdio-paranoia not found"
4575 fi
4576
4577 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4578
4579 enabled x11grab                                           &&
4580 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4581 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4582 { enabled xlib || die "ERROR: Xlib not found"; }
4583
4584 enabled vaapi &&
4585     check_lib va/va.h vaInitialize -lva ||
4586     disable vaapi
4587
4588 enabled vdpau &&
4589     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4590     disable vdpau
4591
4592 enabled vdpau && enabled xlib &&
4593     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4594     enable vdpau_x11
4595
4596 # Funny iconv installations are not unusual, so check it after all flags have been set
4597 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4598
4599 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4600
4601 # add some useful compiler flags if supported
4602 check_cflags -Wdeclaration-after-statement
4603 check_cflags -Wall
4604 check_cflags -Wdisabled-optimization
4605 check_cflags -Wpointer-arith
4606 check_cflags -Wredundant-decls
4607 check_cflags -Wwrite-strings
4608 check_cflags -Wtype-limits
4609 check_cflags -Wundef
4610 check_cflags -Wmissing-prototypes
4611 check_cflags -Wno-pointer-to-int-cast
4612 check_cflags -Wstrict-prototypes
4613 enabled extra_warnings && check_cflags -Winline
4614
4615 check_disable_warning(){
4616     warning_flag=-W${1#-Wno-}
4617     test_cflags $warning_flag && add_cflags $1
4618 }
4619
4620 check_disable_warning -Wno-parentheses
4621 check_disable_warning -Wno-switch
4622 check_disable_warning -Wno-format-zero-length
4623 check_disable_warning -Wno-pointer-sign
4624
4625 # add some linker flags
4626 check_ldflags -Wl,--warn-common
4627 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4628 enabled rpath && add_ldflags -Wl,-rpath=$libdir
4629 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4630
4631 # add some strip flags
4632 # -wN '..@*' is more selective than -x, but not available everywhere.
4633 check_stripflags -wN \'..@*\' || check_stripflags -x
4634
4635 enabled neon_clobber_test &&
4636     check_ldflags -Wl,--wrap,avcodec_open2              \
4637                   -Wl,--wrap,avcodec_decode_audio4      \
4638                   -Wl,--wrap,avcodec_decode_video2      \
4639                   -Wl,--wrap,avcodec_decode_subtitle2   \
4640                   -Wl,--wrap,avcodec_encode_audio2      \
4641                   -Wl,--wrap,avcodec_encode_video2      \
4642                   -Wl,--wrap,avcodec_encode_subtitle ||
4643     disable neon_clobber_test
4644
4645 enabled xmm_clobber_test &&
4646     check_ldflags -Wl,--wrap,avcodec_open2              \
4647                   -Wl,--wrap,avcodec_decode_audio4      \
4648                   -Wl,--wrap,avcodec_decode_video2      \
4649                   -Wl,--wrap,avcodec_decode_subtitle2   \
4650                   -Wl,--wrap,avcodec_encode_audio2      \
4651                   -Wl,--wrap,avcodec_encode_video       \
4652                   -Wl,--wrap,avcodec_encode_video2      \
4653                   -Wl,--wrap,avcodec_encode_subtitle    \
4654                   -Wl,--wrap,sws_scale ||
4655     disable xmm_clobber_test
4656
4657 echo "X{};" > $TMPV
4658 if test_ldflags -Wl,--version-script,$TMPV; then
4659     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4660     check_cc <<EOF && enable symver_asm_label
4661 void ff_foo(void) __asm__ ("av_foo@VERSION");
4662 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4663 EOF
4664     check_cc <<EOF && enable symver_gnu_asm
4665 __asm__(".symver ff_foo,av_foo@VERSION");
4666 void ff_foo(void) {}
4667 EOF
4668 fi
4669
4670 if [ -z "$optflags" ]; then
4671     if enabled small; then
4672         optflags=$cflags_size
4673     elif enabled optimizations; then
4674         optflags=$cflags_speed
4675     else
4676         optflags=$cflags_noopt
4677     fi
4678 fi
4679
4680 check_optflags(){
4681     check_cflags "$@"
4682     enabled lto && check_ldflags "$@"
4683 }
4684
4685
4686 if enabled lto; then
4687     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4688     check_cflags  -flto
4689     check_ldflags -flto $cpuflags
4690 fi
4691
4692 check_optflags $optflags
4693 check_optflags -fno-math-errno
4694 check_optflags -fno-signed-zeros
4695
4696 enabled ftrapv && check_cflags -ftrapv
4697
4698 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4699 int x;
4700 EOF
4701
4702
4703 if enabled icc; then
4704     # Just warnings, no remarks
4705     check_cflags -w1
4706     # -wd: Disable following warnings
4707     # 144, 167, 556: -Wno-pointer-sign
4708     # 188: enumerated type mixed with another type
4709     # 1292: attribute "foo" ignored
4710     # 1419: external declaration in primary source file
4711     # 10006: ignoring unknown option -fno-signed-zeros
4712     # 10148: ignoring unknown option -Wno-parentheses
4713     # 10156: ignoring option '-W'; no argument required
4714     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4715     # 11030: Warning unknown option --as-needed
4716     # 10156: ignoring option '-export'; no argument required
4717     check_ldflags -wd10156,11030
4718     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4719     enable ebp_available
4720     if enabled x86_32; then
4721         icc_version=$($cc -dumpversion)
4722         test ${icc_version%%.*} -ge 11 &&
4723             check_cflags -falign-stack=maintain-16-byte ||
4724             disable aligned_stack
4725     fi
4726 elif enabled ccc; then
4727     # disable some annoying warnings
4728     add_cflags -msg_disable bitnotint
4729     add_cflags -msg_disable mixfuncvoid
4730     add_cflags -msg_disable nonstandcast
4731     add_cflags -msg_disable unsupieee
4732 elif enabled gcc; then
4733     check_optflags -fno-tree-vectorize
4734     check_cflags -Werror=implicit-function-declaration
4735     check_cflags -Werror=missing-prototypes
4736     check_cflags -Werror=return-type
4737     check_cflags -Werror=vla
4738     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4739 elif enabled llvm_gcc; then
4740     check_cflags -mllvm -stack-alignment=16
4741 elif enabled clang; then
4742     check_cflags -mllvm -stack-alignment=16
4743     check_cflags -Qunused-arguments
4744     check_cflags -Werror=implicit-function-declaration
4745     check_cflags -Werror=missing-prototypes
4746     check_cflags -Werror=return-type
4747 elif enabled cparser; then
4748     add_cflags -Wno-missing-variable-declarations
4749     add_cflags -Wno-empty-statement
4750 elif enabled armcc; then
4751     # 2523: use of inline assembler is deprecated
4752     add_cflags -W${armcc_opt},--diag_suppress=2523
4753     add_cflags -W${armcc_opt},--diag_suppress=1207
4754     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4755     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4756     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4757     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4758 elif enabled tms470; then
4759     add_cflags -pds=824 -pds=837
4760     disable inline_asm
4761 elif enabled pathscale; then
4762     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4763 elif enabled_any msvc icl; then
4764     enabled x86_32 && disable aligned_stack
4765     enabled_all x86_32 debug && add_cflags -Oy-
4766     enabled debug && add_ldflags -debug
4767     enable pragma_deprecated
4768     if enabled icl; then
4769         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4770         # (correctly) on icl 13.x.
4771         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4772             add_cflags -Qansi-alias
4773         # icl will pass the inline asm tests but inline asm is currently
4774         # not supported (build will fail)
4775         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4776         disable inline_asm
4777     fi
4778 fi
4779
4780 case $target_os in
4781     osf1)
4782         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4783     ;;
4784     plan9)
4785         add_cppflags -Dmain=plan9_main
4786     ;;
4787 esac
4788
4789 enable frame_thread_encoder
4790
4791 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4792
4793 check_deps $CONFIG_LIST       \
4794            $CONFIG_EXTRA      \
4795            $HAVE_LIST         \
4796            $ALL_COMPONENTS    \
4797
4798 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"
4799
4800
4801 if test $target_os = "haiku"; then
4802     disable memalign
4803     disable posix_memalign
4804 fi
4805
4806 ! enabled_any memalign posix_memalign aligned_malloc &&
4807     enabled_any $need_memalign && enable memalign_hack
4808
4809 # add_dep lib dep
4810 # -> enable ${lib}_deps_${dep}
4811 # -> add $dep to ${lib}_deps only once
4812 add_dep() {
4813     lib=$1
4814     dep=$2
4815     enabled "${lib}_deps_${dep}" && return 0
4816     enable  "${lib}_deps_${dep}"
4817     prepend "${lib}_deps" $dep
4818 }
4819
4820 # merge deps lib components
4821 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4822 merge_deps() {
4823     lib=$1
4824     shift
4825     for comp in $*; do
4826         enabled $comp || continue
4827         eval "dep=\"\$${comp}_deps\""
4828         for d in $dep; do
4829             add_dep $lib $d
4830         done
4831     done
4832 }
4833
4834 merge_deps libavfilter $FILTER_LIST
4835
4836 echo "install prefix            $prefix"
4837 echo "source path               $source_path"
4838 echo "C compiler                $cc"
4839 echo "C library                 $libc_type"
4840 if test "$host_cc" != "$cc"; then
4841     echo "host C compiler           $host_cc"
4842     echo "host C library            $host_libc_type"
4843 fi
4844 echo "ARCH                      $arch ($cpu)"
4845 if test "$build_suffix" != ""; then
4846     echo "build suffix              $build_suffix"
4847 fi
4848 if test "$progs_suffix" != ""; then
4849     echo "progs suffix              $progs_suffix"
4850 fi
4851 if test "$extra_version" != ""; then
4852     echo "version string suffix     $extra_version"
4853 fi
4854 echo "big-endian                ${bigendian-no}"
4855 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4856 if enabled x86; then
4857     echo "${yasmexe}                      ${yasm-no}"
4858     echo "MMX enabled               ${mmx-no}"
4859     echo "MMXEXT enabled            ${mmxext-no}"
4860     echo "3DNow! enabled            ${amd3dnow-no}"
4861     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4862     echo "SSE enabled               ${sse-no}"
4863     echo "SSSE3 enabled             ${ssse3-no}"
4864     echo "AVX enabled               ${avx-no}"
4865     echo "FMA4 enabled              ${fma4-no}"
4866     echo "i686 features enabled     ${i686-no}"
4867     echo "CMOV is fast              ${fast_cmov-no}"
4868     echo "EBX available             ${ebx_available-no}"
4869     echo "EBP available             ${ebp_available-no}"
4870 fi
4871 if enabled arm; then
4872     echo "ARMv5TE enabled           ${armv5te-no}"
4873     echo "ARMv6 enabled             ${armv6-no}"
4874     echo "ARMv6T2 enabled           ${armv6t2-no}"
4875     echo "VFP enabled               ${vfp-no}"
4876     echo "NEON enabled              ${neon-no}"
4877     echo "THUMB enabled             ${thumb-no}"
4878 fi
4879 if enabled mips; then
4880     echo "MIPS FPU enabled          ${mipsfpu-no}"
4881     echo "MIPS32R2 enabled          ${mips32r2-no}"
4882     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4883     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4884 fi
4885 if enabled ppc; then
4886     echo "AltiVec enabled           ${altivec-no}"
4887     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4888     echo "dcbzl available           ${dcbzl-no}"
4889 fi
4890 if enabled sparc; then
4891     echo "VIS enabled               ${vis-no}"
4892 fi
4893 echo "debug symbols             ${debug-no}"
4894 echo "strip symbols             ${stripping-no}"
4895 echo "optimize for size         ${small-no}"
4896 echo "optimizations             ${optimizations-no}"
4897 echo "static                    ${static-no}"
4898 echo "shared                    ${shared-no}"
4899 echo "postprocessing support    ${postproc-no}"
4900 echo "new filter support        ${avfilter-no}"
4901 echo "network support           ${network-no}"
4902 echo "threading support         ${thread_type-no}"
4903 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4904 echo "SDL support               ${sdl-no}"
4905 echo "opencl enabled            ${opencl-no}"
4906 echo "libzvbi enabled           ${libzvbi-no}"
4907 echo "texi2html enabled         ${texi2html-no}"
4908 echo "perl enabled              ${perl-no}"
4909 echo "pod2man enabled           ${pod2man-no}"
4910 echo "makeinfo enabled          ${makeinfo-no}"
4911 test -n "$random_seed" &&
4912     echo "random seed               ${random_seed}"
4913 echo
4914
4915 echo "External libraries:"
4916 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4917 echo
4918
4919 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4920     echo "Enabled ${type}s:"
4921     eval list=\$$(toupper $type)_LIST
4922     print_enabled '_*' $list | print_3_columns
4923     echo
4924 done
4925
4926 license="LGPL version 2.1 or later"
4927 if enabled nonfree; then
4928     license="nonfree and unredistributable"
4929 elif enabled gplv3; then
4930     license="GPL version 3 or later"
4931 elif enabled lgplv3; then
4932     license="LGPL version 3 or later"
4933 elif enabled gpl; then
4934     license="GPL version 2 or later"
4935 fi
4936
4937 echo "License: $license"
4938
4939 echo "Creating config.mak, config.h, and doc/config.texi..."
4940
4941 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4942
4943 enabled stripping || strip="echo skipping strip"
4944
4945 config_files="$TMPH config.mak doc/config.texi"
4946
4947 cat > config.mak <<EOF
4948 # Automatically generated by configure - do not modify!
4949 ifndef FFMPEG_CONFIG_MAK
4950 FFMPEG_CONFIG_MAK=1
4951 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4952 prefix=$prefix
4953 LIBDIR=\$(DESTDIR)$libdir
4954 SHLIBDIR=\$(DESTDIR)$shlibdir
4955 INCDIR=\$(DESTDIR)$incdir
4956 BINDIR=\$(DESTDIR)$bindir
4957 DATADIR=\$(DESTDIR)$datadir
4958 DOCDIR=\$(DESTDIR)$docdir
4959 MANDIR=\$(DESTDIR)$mandir
4960 SRC_PATH=$source_path
4961 ifndef MAIN_MAKEFILE
4962 SRC_PATH:=\$(SRC_PATH:.%=..%)
4963 endif
4964 CC_IDENT=$cc_ident
4965 ARCH=$arch
4966 CC=$cc
4967 CXX=$cxx
4968 AS=$as
4969 LD=$ld
4970 DEPCC=$dep_cc
4971 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4972 DEPAS=$as
4973 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4974 YASM=$yasmexe
4975 DEPYASM=$yasmexe
4976 AR=$ar
4977 ARFLAGS=$arflags
4978 AR_O=$ar_o
4979 RANLIB=$ranlib
4980 STRIP=$strip
4981 CP=cp -p
4982 LN_S=$ln_s
4983 CPPFLAGS=$CPPFLAGS
4984 CFLAGS=$CFLAGS
4985 CXXFLAGS=$CXXFLAGS
4986 ASFLAGS=$ASFLAGS
4987 AS_C=$AS_C
4988 AS_O=$AS_O
4989 CC_C=$CC_C
4990 CC_E=$CC_E
4991 CC_O=$CC_O
4992 CXX_C=$CXX_C
4993 CXX_O=$CXX_O
4994 LD_O=$LD_O
4995 LD_LIB=$LD_LIB
4996 LD_PATH=$LD_PATH
4997 DLLTOOL=$dlltool
4998 WINDRES=$windres
4999 DEPWINDRES=$dep_cc
5000 LDFLAGS=$LDFLAGS
5001 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5002 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5003 YASMFLAGS=$YASMFLAGS
5004 BUILDSUF=$build_suffix
5005 PROGSSUF=$progs_suffix
5006 FULLNAME=$FULLNAME
5007 LIBPREF=$LIBPREF
5008 LIBSUF=$LIBSUF
5009 LIBNAME=$LIBNAME
5010 SLIBPREF=$SLIBPREF
5011 SLIBSUF=$SLIBSUF
5012 EXESUF=$EXESUF
5013 EXTRA_VERSION=$extra_version
5014 CCDEP=$CCDEP
5015 CXXDEP=$CXXDEP
5016 CCDEP_FLAGS=$CCDEP_FLAGS
5017 ASDEP=$ASDEP
5018 ASDEP_FLAGS=$ASDEP_FLAGS
5019 CC_DEPFLAGS=$CC_DEPFLAGS
5020 AS_DEPFLAGS=$AS_DEPFLAGS
5021 HOSTCC=$host_cc
5022 HOSTLD=$host_ld
5023 HOSTCFLAGS=$host_cflags
5024 HOSTCPPFLAGS=$host_cppflags
5025 HOSTEXESUF=$HOSTEXESUF
5026 HOSTLDFLAGS=$host_ldflags
5027 HOSTLIBS=$host_libs
5028 DEPHOSTCC=$host_cc
5029 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5030 HOSTCCDEP=$HOSTCCDEP
5031 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5032 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5033 HOSTCC_C=$HOSTCC_C
5034 HOSTCC_O=$HOSTCC_O
5035 HOSTLD_O=$HOSTLD_O
5036 TARGET_EXEC=$target_exec $target_exec_args
5037 TARGET_PATH=$target_path
5038 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5039 LIBS-ffplay=$sdl_libs
5040 CFLAGS-ffplay=$sdl_cflags
5041 ZLIB=$($ldflags_filter -lz)
5042 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5043 EXTRALIBS=$extralibs
5044 COMPAT_OBJS=$compat_objs
5045 EXEOBJS=$exeobjs
5046 INSTALL=$install
5047 LIBTARGET=${LIBTARGET}
5048 SLIBNAME=${SLIBNAME}
5049 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5050 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5051 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5052 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5053 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5054 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5055 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5056 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5057 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5058 NOREDZONE_FLAGS=$noredzone_flags
5059 EOF
5060
5061 get_version(){
5062     lcname=lib${1}
5063     name=$(toupper $lcname)
5064     file=$source_path/$lcname/version.h
5065     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5066     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5067     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5068     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5069     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5070     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5071 }
5072
5073 map 'get_version $v' $LIBRARY_LIST
5074
5075 cat > $TMPH <<EOF
5076 /* Automatically generated by configure - do not modify! */
5077 #ifndef FFMPEG_CONFIG_H
5078 #define FFMPEG_CONFIG_H
5079 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5080 #define FFMPEG_LICENSE "$(c_escape $license)"
5081 #define CONFIG_THIS_YEAR 2014
5082 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5083 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5084 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5085 #define av_restrict $_restrict
5086 #define EXTERN_PREFIX "${extern_prefix}"
5087 #define EXTERN_ASM ${extern_prefix}
5088 #define BUILDSUF "$build_suffix"
5089 #define SLIBSUF "$SLIBSUF"
5090 #define HAVE_MMX2 HAVE_MMXEXT
5091 EOF
5092
5093 test -n "$assert_level" &&
5094     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5095
5096 test -n "$malloc_prefix" &&
5097     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5098
5099 if enabled yasm; then
5100     append config_files $TMPASM
5101     printf '' >$TMPASM
5102 fi
5103
5104 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5105
5106
5107 mkdir -p doc
5108 echo "@c auto-generated by configure" > doc/config.texi
5109
5110 print_config ARCH_   "$config_files" $ARCH_LIST
5111 print_config HAVE_   "$config_files" $HAVE_LIST
5112 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5113                                      $CONFIG_EXTRA      \
5114                                      $ALL_COMPONENTS    \
5115
5116 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5117 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5118
5119 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5120 cp_if_changed $TMPH config.h
5121 touch .config
5122
5123 enabled yasm && cp_if_changed $TMPASM config.asm
5124
5125 cat > $TMPH <<EOF
5126 /* Generated by ffconf */
5127 #ifndef AVUTIL_AVCONFIG_H
5128 #define AVUTIL_AVCONFIG_H
5129 EOF
5130
5131 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5132
5133 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5134
5135 cp_if_changed $TMPH libavutil/avconfig.h
5136
5137 if test -n "$WARNINGS"; then
5138     printf "\n$WARNINGS"
5139     enabled fatal_warnings && exit 1
5140 fi
5141
5142 # build pkg-config files
5143
5144 pkgconfig_generate(){
5145     name=$1
5146     shortname=${name#lib}${build_suffix}
5147     comment=$2
5148     version=$3
5149     libs=$4
5150     requires=$5
5151     enabled ${name#lib} || return 0
5152     mkdir -p $name
5153     cat <<EOF > $name/$name${build_suffix}.pc
5154 prefix=$prefix
5155 exec_prefix=\${prefix}
5156 libdir=$libdir
5157 includedir=$incdir
5158
5159 Name: $name
5160 Description: $comment
5161 Version: $version
5162 Requires: $(enabled shared || echo $requires)
5163 Requires.private: $(enabled shared && echo $requires)
5164 Conflicts:
5165 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5166 Libs.private: $(enabled shared && echo $libs)
5167 Cflags: -I\${includedir}
5168 EOF
5169
5170 mkdir -p doc/examples/pc-uninstalled
5171 includedir=${source_path}
5172 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5173     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5174 prefix=
5175 exec_prefix=
5176 libdir=\${pcfiledir}/../../../$name
5177 includedir=${includedir}
5178
5179 Name: $name
5180 Description: $comment
5181 Version: $version
5182 Requires: $requires
5183 Conflicts:
5184 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5185 Cflags: -I\${includedir}
5186 EOF
5187 }
5188
5189 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5190 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5191 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5192 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5193 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5194 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5195 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5196 lavfi_libs=${lavfi_libs%, }
5197
5198 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5199 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5200
5201 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5202 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5203 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5204 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5205 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5206 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5207 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5208 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5209 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"