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   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-ffmpeg         disable ffmpeg build
 109   --disable-ffplay         disable ffplay build
 110   --disable-ffprobe        disable ffprobe build
 111   --disable-ffserver       disable ffserver build
 112
 113 Documentation options:
 114   --disable-doc            do not build documentation
 115   --disable-htmlpages      do not build HTML documentation pages
 116   --disable-manpages       do not build man documentation pages
 117   --disable-podpages       do not build POD documentation pages
 118   --disable-txtpages       do not build text documentation pages
 119
 120 Component options:
 121   --disable-avdevice       disable libavdevice build
 122   --disable-avcodec        disable libavcodec build
 123   --disable-avformat       disable libavformat build
 124   --disable-avutil         disable libavutil build
 125   --disable-swresample     disable libswresample build
 126   --disable-swscale        disable libswscale build
 127   --disable-postproc       disable libpostproc build
 128   --disable-avfilter       disable libavfilter build
 129   --enable-avresample      enable libavresample build [no]
 130   --disable-pthreads       disable pthreads [auto]
 131   --disable-w32threads     disable Win32 threads [auto]
 132   --disable-os2threads     disable OS/2 threads [auto]
 133   --enable-x11grab         enable X11 grabbing [no]
 134   --disable-network        disable network support [no]
 135   --disable-dct            disable DCT code
 136   --disable-dwt            disable DWT code
 137   --disable-lsp            disable LSP code
 138   --disable-lzo            disable LZO decoder code
 139   --disable-mdct           disable MDCT code
 140   --disable-rdft           disable RDFT code
 141   --disable-fft            disable FFT code
 142
 143 Hardware accelerators:
 144   --enable-dxva2           enable DXVA2 code
 145   --enable-vaapi           enable VAAPI code [autodetect]
 146   --enable-vda             enable VDA code   [autodetect]
 147   --enable-vdpau           enable VDPAU code [autodetect]
 148
 149 Individual component options:
 150   --disable-everything     disable all components listed below
 151   --disable-encoder=NAME   disable encoder NAME
 152   --enable-encoder=NAME    enable encoder NAME
 153   --disable-encoders       disable all encoders
 154   --disable-decoder=NAME   disable decoder NAME
 155   --enable-decoder=NAME    enable decoder NAME
 156   --disable-decoders       disable all decoders
 157   --disable-hwaccel=NAME   disable hwaccel NAME
 158   --enable-hwaccel=NAME    enable hwaccel NAME
 159   --disable-hwaccels       disable all hwaccels
 160   --disable-muxer=NAME     disable muxer NAME
 161   --enable-muxer=NAME      enable muxer NAME
 162   --disable-muxers         disable all muxers
 163   --disable-demuxer=NAME   disable demuxer NAME
 164   --enable-demuxer=NAME    enable demuxer NAME
 165   --disable-demuxers       disable all demuxers
 166   --enable-parser=NAME     enable parser NAME
 167   --disable-parser=NAME    disable parser NAME
 168   --disable-parsers        disable all parsers
 169   --enable-bsf=NAME        enable bitstream filter NAME
 170   --disable-bsf=NAME       disable bitstream filter NAME
 171   --disable-bsfs           disable all bitstream filters
 172   --enable-protocol=NAME   enable protocol NAME
 173   --disable-protocol=NAME  disable protocol NAME
 174   --disable-protocols      disable all protocols
 175   --enable-indev=NAME      enable input device NAME
 176   --disable-indev=NAME     disable input device NAME
 177   --disable-indevs         disable input devices
 178   --enable-outdev=NAME     enable output device NAME
 179   --disable-outdev=NAME    disable output device NAME
 180   --disable-outdevs        disable output devices
 181   --disable-devices        disable all devices
 182   --enable-filter=NAME     enable filter NAME
 183   --disable-filter=NAME    disable filter NAME
 184   --disable-filters        disable all filters
 185
 186 External library support:
 187   --enable-avisynth        enable reading of AVISynth script files [no]
 188   --enable-bzlib           enable bzlib [autodetect]
 189   --enable-fontconfig      enable fontconfig
 190   --enable-frei0r          enable frei0r video filtering
 191   --enable-gnutls          enable gnutls [no]
 192   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 193   --enable-libass          enable libass subtitles rendering [no]
 194   --enable-libbluray       enable BluRay reading using libbluray [no]
 195   --enable-libcaca         enable textual display using libcaca
 196   --enable-libcelt         enable CELT decoding via libcelt [no]
 197   --enable-libcdio         enable audio CD grabbing with libcdio
 198   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 199                            and libraw1394 [no]
 200   --enable-libfaac         enable AAC encoding via libfaac [no]
 201   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 202   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 203   --enable-libfreetype     enable libfreetype [no]
 204   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 205   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 206   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 207   --enable-libmodplug      enable ModPlug via libmodplug [no]
 208   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 209   --enable-libnut          enable NUT (de)muxing via libnut,
 210                            native (de)muxer exists [no]
 211   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 212   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 213   --enable-libopencv       enable video filtering via libopencv [no]
 214   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 215   --enable-libopus         enable Opus decoding via libopus [no]
 216   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 217   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 218   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 219   --enable-libsoxr         enable Include libsoxr resampling [no]
 220   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 221   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 222   --enable-libtheora       enable Theora encoding via libtheora [no]
 223   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 224   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 225   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 226   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 227   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 228   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 229                            native implementation exists [no]
 230   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 231   --enable-libx264         enable H.264 encoding via x264 [no]
 232   --enable-libxavs         enable AVS encoding via xavs [no]
 233   --enable-libxvid         enable Xvid encoding via xvidcore,
 234                            native MPEG-4/Xvid encoder exists [no]
 235   --enable-openal          enable OpenAL 1.1 capture support [no]
 236   --enable-openssl         enable openssl [no]
 237   --enable-zlib            enable zlib [autodetect]
 238
 239 Advanced options (experts only):
 240   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 241   --enable-cross-compile   assume a cross-compiler is used
 242   --sysroot=PATH           root of cross-build tree
 243   --sysinclude=PATH        location of cross-build system headers
 244   --target-os=OS           compiler targets OS [$target_os]
 245   --target-exec=CMD        command to run executables on target
 246   --target-path=DIR        path to view of build directory on target
 247   --toolchain=NAME         set tool defaults according to NAME
 248   --nm=NM                  use nm tool NM [$nm_default]
 249   --ar=AR                  use archive tool AR [$ar_default]
 250   --as=AS                  use assembler AS [$as_default]
 251   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 252   --cc=CC                  use C compiler CC [$cc_default]
 253   --cxx=CXX                use C compiler CXX [$cxx_default]
 254   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 255   --ld=LD                  use linker LD [$ld_default]
 256   --host-cc=HOSTCC         use host C compiler HOSTCC
 257   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 258   --host-ld=HOSTLD         use host linker HOSTLD
 259   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 260   --host-libs=HLIBS        use libs HLIBS when linking for host
 261   --host-os=OS             compiler host OS [$target_os]
 262   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 263   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 264   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 265   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 266   --extra-version=STRING   version string suffix []
 267   --optflags=OPTFLAGS      override optimization-related compiler flags
 268   --build-suffix=SUFFIX    library name suffix []
 269   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 270   --progs-suffix=SUFFIX    program name suffix []
 271   --arch=ARCH              select architecture [$arch]
 272   --cpu=CPU                select the minimum required CPU (affects
 273                            instruction selection, may crash on older CPUs)
 274   --enable-pic             build position-independent code
 275   --enable-sram            allow use of on-chip SRAM
 276   --enable-thumb           compile for Thumb instruction set
 277   --disable-symver         disable symbol versioning
 278   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 279   --disable-safe-bitstream-reader
 280                            disable buffer boundary checking in bitreaders
 281                            (faster, but may crash)
 282   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 283   --enable-lto             use link-time optimization
 284
 285 Optimization options (experts only):
 286   --disable-asm            disable all assembler optimizations
 287   --disable-altivec        disable AltiVec optimizations
 288   --disable-amd3dnow       disable 3DNow! optimizations
 289   --disable-amd3dnowext    disable 3DNow! extended optimizations
 290   --disable-mmx            disable MMX optimizations
 291   --disable-mmxext         disable MMXEXT optimizations
 292   --disable-sse            disable SSE optimizations
 293   --disable-sse2           disable SSE2 optimizations
 294   --disable-sse3           disable SSE3 optimizations
 295   --disable-ssse3          disable SSSE3 optimizations
 296   --disable-sse4           disable SSE4 optimizations
 297   --disable-sse42          disable SSE4.2 optimizations
 298   --disable-avx            disable AVX optimizations
 299   --disable-fma4           disable FMA4 optimizations
 300   --disable-armv5te        disable armv5te optimizations
 301   --disable-armv6          disable armv6 optimizations
 302   --disable-armv6t2        disable armv6t2 optimizations
 303   --disable-vfp            disable VFP optimizations
 304   --disable-neon           disable NEON optimizations
 305   --disable-vis            disable VIS optimizations
 306   --disable-inline-asm     disable use of inline assembler
 307   --disable-yasm           disable use of yasm assembler
 308   --disable-mips32r2       disable MIPS32R2 optimizations
 309   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 310   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 311   --disable-mipsfpu        disable floating point MIPS optimizations
 312   --disable-fast-unaligned consider unaligned accesses slow
 313
 314 Developer options (useful when working on FFmpeg itself):
 315   --enable-coverage        build with test coverage instrumentation
 316   --disable-debug          disable debugging symbols
 317   --enable-debug=LEVEL     set the debug level [$debuglevel]
 318   --disable-optimizations  disable compiler optimizations
 319   --enable-extra-warnings  enable more compiler warnings
 320   --disable-stripping      disable stripping of executables and shared libraries
 321   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 322                            2 causes a slowdown at runtime.
 323   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 324   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 325                            leaks and errors, using the specified valgrind binary.
 326                            Cannot be combined with --target-exec
 327   --enable-ftrapv          Trap arithmetic overflows
 328   --samples=PATH           location of test samples for FATE, if not set use
 329                            \$FATE_SAMPLES at make invocation time.
 330   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 331                            should be used only for debugging purposes)
 332   --enable-random          randomly enable/disable components
 333   --disable-random
 334   --enable-random=LIST     randomly enable/disable specific components or
 335   --disable-random=LIST    component groups. LIST is a comma-separated list
 336                            of NAME[:PROB] entries where NAME is a component
 337                            (group) and PROB the probability associated with
 338                            NAME (default 0.5).
 339   --random-seed=VALUE      seed value for --enable/disable-random
 340
 341 NOTE: Object files are built at the place where configure is launched.
 342 EOF
 343   exit 0
 344 }
 345
 346 quotes='""'
 347
 348 log(){
 349     echo "$@" >> $logfile
 350 }
 351
 352 log_file(){
 353     log BEGIN $1
 354     pr -n -t $1 >> $logfile
 355     log END $1
 356 }
 357
 358 echolog(){
 359     log "$@"
 360     echo "$@"
 361 }
 362
 363 warn(){
 364     log "WARNING: $*"
 365     WARNINGS="${WARNINGS}WARNING: $*\n"
 366 }
 367
 368 die(){
 369     echolog "$@"
 370     cat <<EOF
 371
 372 If you think configure made a mistake, make sure you are using the latest
 373 version from Git.  If the latest version fails, report the problem to the
 374 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 375 EOF
 376     if disabled logging; then
 377         cat <<EOF
 378 Rerun configure with logging enabled (do not use --disable-logging), and
 379 include the log this produces with your report.
 380 EOF
 381     else
 382         cat <<EOF
 383 Include the log file "$logfile" produced by configure as this will help
 384 solving the problem.
 385 EOF
 386     fi
 387     exit 1
 388 }
 389
 390 # Avoid locale weirdness, besides we really just want to translate ASCII.
 391 toupper(){
 392     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 393 }
 394
 395 tolower(){
 396     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 397 }
 398
 399 c_escape(){
 400     echo "$*" | sed 's/["\\]/\\\0/g'
 401 }
 402
 403 sh_quote(){
 404     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 405     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 406     echo "$v"
 407 }
 408
 409 cleanws(){
 410     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 411 }
 412
 413 filter(){
 414     pat=$1
 415     shift
 416     for v; do
 417         eval "case $v in $pat) echo $v ;; esac"
 418     done
 419 }
 420
 421 filter_out(){
 422     pat=$1
 423     shift
 424     for v; do
 425         eval "case $v in $pat) ;; *) echo $v ;; esac"
 426     done
 427 }
 428
 429 map(){
 430     m=$1
 431     shift
 432     for v; do eval $m; done
 433 }
 434
 435 add_suffix(){
 436     suffix=$1
 437     shift
 438     for v; do echo ${v}${suffix}; done
 439 }
 440
 441 set_all(){
 442     value=$1
 443     shift
 444     for var in $*; do
 445         eval $var=$value
 446     done
 447 }
 448
 449 set_weak(){
 450     value=$1
 451     shift
 452     for var; do
 453         eval : \${$var:=$value}
 454     done
 455 }
 456
 457 set_safe(){
 458     var=$1
 459     shift
 460     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 461 }
 462
 463 get_safe(){
 464     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 465 }
 466
 467 pushvar(){
 468     for var in $*; do
 469         eval level=\${${var}_level:=0}
 470         eval ${var}_${level}="\$$var"
 471         eval ${var}_level=$(($level+1))
 472     done
 473 }
 474
 475 popvar(){
 476     for var in $*; do
 477         eval level=\${${var}_level:-0}
 478         test $level = 0 && continue
 479         eval level=$(($level-1))
 480         eval $var="\${${var}_${level}}"
 481         eval ${var}_level=$level
 482         eval unset ${var}_${level}
 483     done
 484 }
 485
 486 enable(){
 487     set_all yes $*
 488 }
 489
 490 disable(){
 491     set_all no $*
 492 }
 493
 494 enable_weak(){
 495     set_weak yes $*
 496 }
 497
 498 disable_weak(){
 499     set_weak no $*
 500 }
 501
 502 enable_safe(){
 503     for var; do
 504         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 505     done
 506 }
 507
 508 disable_safe(){
 509     for var; do
 510         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 511     done
 512 }
 513
 514 do_enable_deep(){
 515     for var; do
 516         enabled $var && continue
 517         eval sel="\$${var}_select"
 518         eval sgs="\$${var}_suggest"
 519         pushvar var sgs
 520         enable_deep $sel
 521         popvar sgs
 522         enable_deep_weak $sgs
 523         popvar var
 524     done
 525 }
 526
 527 enable_deep(){
 528     do_enable_deep $*
 529     enable $*
 530 }
 531
 532 enable_deep_weak(){
 533     do_enable_deep $*
 534     enable_weak $*
 535 }
 536
 537 enabled(){
 538     test "${1#!}" = "$1" && op== || op=!=
 539     eval test "x\$${1#!}" $op "xyes"
 540 }
 541
 542 disabled(){
 543     test "${1#!}" = "$1" && op== || op=!=
 544     eval test "x\$${1#!}" $op "xno"
 545 }
 546
 547 enabled_all(){
 548     for opt; do
 549         enabled $opt || return 1
 550     done
 551 }
 552
 553 disabled_all(){
 554     for opt; do
 555         disabled $opt || return 1
 556     done
 557 }
 558
 559 enabled_any(){
 560     for opt; do
 561         enabled $opt && return 0
 562     done
 563 }
 564
 565 disabled_any(){
 566     for opt; do
 567         disabled $opt && return 0
 568     done
 569     return 1
 570 }
 571
 572 set_default(){
 573     for opt; do
 574         eval : \${$opt:=\$${opt}_default}
 575     done
 576 }
 577
 578 is_in(){
 579     value=$1
 580     shift
 581     for var in $*; do
 582         [ $var = $value ] && return 0
 583     done
 584     return 1
 585 }
 586
 587 do_check_deps(){
 588     for cfg; do
 589         cfg="${cfg#!}"
 590         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 591         disabled ${cfg}_checking && continue
 592         enable ${cfg}_checking
 593         append allopts $cfg
 594
 595         eval dep_all="\$${cfg}_deps"
 596         eval dep_any="\$${cfg}_deps_any"
 597         eval dep_sel="\$${cfg}_select"
 598         eval dep_sgs="\$${cfg}_suggest"
 599         eval dep_ifa="\$${cfg}_if"
 600         eval dep_ifn="\$${cfg}_if_any"
 601
 602         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 603         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 604         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 605
 606         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 607         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 608         enabled_all  $dep_all || disable $cfg
 609         enabled_any  $dep_any || disable $cfg
 610         disabled_any $dep_sel && disable $cfg
 611
 612         if enabled $cfg; then
 613             enable_deep $dep_sel
 614             enable_deep_weak $dep_sgs
 615         fi
 616
 617         disable ${cfg}_checking
 618     done
 619 }
 620
 621 check_deps(){
 622     unset allopts
 623
 624     do_check_deps "$@"
 625
 626     for cfg in $allopts; do
 627         enabled $cfg || continue
 628         eval dep_extralibs="\$${cfg}_extralibs"
 629         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 630     done
 631 }
 632
 633 print_config(){
 634     pfx=$1
 635     files=$2
 636     shift 2
 637     map 'eval echo "$v \${$v:-no}"' "$@" |
 638     awk "BEGIN { split(\"$files\", files) }
 639         {
 640             c = \"$pfx\" toupper(\$1);
 641             v = \$2;
 642             sub(/yes/, 1, v);
 643             sub(/no/,  0, v);
 644             for (f in files) {
 645                 file = files[f];
 646                 if (file ~ /\\.h\$/) {
 647                     printf(\"#define %s %d\\n\", c, v) >>file;
 648                 } else if (file ~ /\\.asm\$/) {
 649                     printf(\"%%define %s %d\\n\", c, v) >>file;
 650                 } else if (file ~ /\\.mak\$/) {
 651                     n = -v ? \"\" : \"!\";
 652                     printf(\"%s%s=yes\\n\", n, c) >>file;
 653                 }
 654             }
 655         }"
 656 }
 657
 658 print_enabled(){
 659     suf=$1
 660     shift
 661     for v; do
 662         enabled $v && printf "%s\n" ${v%$suf};
 663     done
 664 }
 665
 666 append(){
 667     var=$1
 668     shift
 669     eval "$var=\"\$$var $*\""
 670 }
 671
 672 prepend(){
 673     var=$1
 674     shift
 675     eval "$var=\"$* \$$var\""
 676 }
 677
 678 add_cppflags(){
 679     append CPPFLAGS "$@"
 680 }
 681
 682 add_cflags(){
 683     append CFLAGS $($cflags_filter "$@")
 684 }
 685
 686 add_cxxflags(){
 687     append CXXFLAGS $($cflags_filter "$@")
 688 }
 689
 690 add_asflags(){
 691     append ASFLAGS $($asflags_filter "$@")
 692 }
 693
 694 add_ldflags(){
 695     append LDFLAGS $($ldflags_filter "$@")
 696 }
 697
 698 add_extralibs(){
 699     prepend extralibs $($ldflags_filter "$@")
 700 }
 701
 702 add_host_cflags(){
 703     append host_cflags $($host_cflags_filter "$@")
 704 }
 705
 706 add_host_ldflags(){
 707     append host_ldflags $($host_ldflags_filter "$@")
 708 }
 709
 710 add_compat(){
 711     append compat_objs $1
 712     shift
 713     map 'add_cppflags -D$v' "$@"
 714 }
 715
 716 check_cmd(){
 717     log "$@"
 718     "$@" >> $logfile 2>&1
 719 }
 720
 721 cc_o(){
 722     eval printf '%s\\n' $CC_O
 723 }
 724
 725 cc_e(){
 726     eval printf '%s\\n' $CC_E
 727 }
 728
 729 check_cc(){
 730     log check_cc "$@"
 731     cat > $TMPC
 732     log_file $TMPC
 733     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 734 }
 735
 736 check_cxx(){
 737     log check_cxx "$@"
 738     cat > $TMPCPP
 739     log_file $TMPCPP
 740     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 741 }
 742
 743 check_cpp(){
 744     log check_cpp "$@"
 745     cat > $TMPC
 746     log_file $TMPC
 747     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 748 }
 749
 750 as_o(){
 751     eval printf '%s\\n' $AS_O
 752 }
 753
 754 check_as(){
 755     log check_as "$@"
 756     cat > $TMPS
 757     log_file $TMPS
 758     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 759 }
 760
 761 check_inline_asm(){
 762     log check_inline_asm "$@"
 763     name="$1"
 764     code="$2"
 765     shift 2
 766     disable $name
 767     check_cc "$@" <<EOF && enable $name
 768 void foo(void){ __asm__ volatile($code); }
 769 EOF
 770 }
 771
 772 check_insn(){
 773     log check_insn "$@"
 774     check_inline_asm ${1}_inline "\"$2\""
 775     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 776 }
 777
 778 check_yasm(){
 779     log check_yasm "$@"
 780     echo "$1" > $TMPS
 781     log_file $TMPS
 782     shift 1
 783     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 784 }
 785
 786 ld_o(){
 787     eval printf '%s\\n' $LD_O
 788 }
 789
 790 check_ld(){
 791     log check_ld "$@"
 792     type=$1
 793     shift 1
 794     flags=$(filter_out '-l*|*.so' $@)
 795     libs=$(filter '-l*|*.so' $@)
 796     check_$type $($cflags_filter $flags) || return
 797     flags=$($ldflags_filter $flags)
 798     libs=$($ldflags_filter $libs)
 799     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 800 }
 801
 802 check_code(){
 803     log check_code "$@"
 804     check=$1
 805     headers=$2
 806     code=$3
 807     shift 3
 808     {
 809         for hdr in $headers; do
 810             echo "#include <$hdr>"
 811         done
 812         echo "int main(void) { $code; return 0; }"
 813     } | check_$check "$@"
 814 }
 815
 816 check_cppflags(){
 817     log check_cppflags "$@"
 818     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 819 int x;
 820 EOF
 821 }
 822
 823 check_cflags(){
 824     log check_cflags "$@"
 825     set -- $($cflags_filter "$@")
 826     check_cc "$@" <<EOF && append CFLAGS "$@"
 827 int x;
 828 EOF
 829 }
 830
 831 check_cxxflags(){
 832     log check_cxxflags "$@"
 833     set -- $($cflags_filter "$@")
 834     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 835 int x;
 836 EOF
 837 }
 838
 839 test_ldflags(){
 840     log test_ldflags "$@"
 841     check_ld "cc" "$@" <<EOF
 842 int main(void){ return 0; }
 843 EOF
 844 }
 845
 846 check_ldflags(){
 847     log check_ldflags "$@"
 848     test_ldflags "$@" && add_ldflags "$@"
 849 }
 850
 851 check_header(){
 852     log check_header "$@"
 853     header=$1
 854     shift
 855     disable_safe $header
 856     check_cpp "$@" <<EOF && enable_safe $header
 857 #include <$header>
 858 int x;
 859 EOF
 860 }
 861
 862 check_func(){
 863     log check_func "$@"
 864     func=$1
 865     shift
 866     disable $func
 867     check_ld "cc" "$@" <<EOF && enable $func
 868 extern int $func();
 869 int main(void){ $func(); }
 870 EOF
 871 }
 872
 873 check_mathfunc(){
 874     log check_mathfunc "$@"
 875     func=$1
 876     narg=$2
 877     shift 2
 878     test $narg = 2 && args="f, g" || args="f"
 879     disable $func
 880     check_ld "cc" "$@" <<EOF && enable $func
 881 #include <math.h>
 882 float foo(float f, float g) { return $func($args); }
 883 int main(void){ return (int) foo; }
 884 EOF
 885 }
 886
 887 check_func_headers(){
 888     log check_func_headers "$@"
 889     headers=$1
 890     funcs=$2
 891     shift 2
 892     {
 893         for hdr in $headers; do
 894             echo "#include <$hdr>"
 895         done
 896         for func in $funcs; do
 897             echo "long check_$func(void) { return (long) $func; }"
 898         done
 899         echo "int main(void) { return 0; }"
 900     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 901 }
 902
 903 check_class_headers_cpp(){
 904     log check_class_headers_cpp "$@"
 905     headers=$1
 906     classes=$2
 907     shift 2
 908     {
 909         for hdr in $headers; do
 910             echo "#include <$hdr>"
 911         done
 912         echo "int main(void) { "
 913         i=1
 914         for class in $classes; do
 915             echo "$class obj$i;"
 916             i=$(expr $i + 1)
 917         done
 918         echo "return 0; }"
 919     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 920 }
 921
 922 check_cpp_condition(){
 923     log check_cpp_condition "$@"
 924     header=$1
 925     condition=$2
 926     shift 2
 927     check_cpp "$@" <<EOF
 928 #include <$header>
 929 #if !($condition)
 930 #error "unsatisfied condition: $condition"
 931 #endif
 932 EOF
 933 }
 934
 935 check_lib(){
 936     log check_lib "$@"
 937     header="$1"
 938     func="$2"
 939     shift 2
 940     check_header $header && check_func $func "$@" && add_extralibs "$@"
 941 }
 942
 943 check_lib2(){
 944     log check_lib2 "$@"
 945     headers="$1"
 946     funcs="$2"
 947     shift 2
 948     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 949 }
 950
 951 check_lib_cpp(){
 952     log check_lib_cpp "$@"
 953     headers="$1"
 954     classes="$2"
 955     shift 2
 956     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 957 }
 958
 959 check_pkg_config(){
 960     log check_pkg_config "$@"
 961     pkg="$1"
 962     headers="$2"
 963     funcs="$3"
 964     shift 3
 965     $pkg_config --exists $pkg 2>/dev/null || return
 966     pkg_cflags=$($pkg_config --cflags $pkg)
 967     pkg_libs=$($pkg_config --libs $pkg)
 968     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 969         set_safe ${pkg}_cflags $pkg_cflags   &&
 970         set_safe ${pkg}_libs   $pkg_libs
 971 }
 972
 973 check_exec(){
 974     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 975 }
 976
 977 check_exec_crash(){
 978     code=$(cat)
 979
 980     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 981     # are safe but may not be available everywhere.  Thus we use
 982     # raise(SIGTERM) instead.  The check is run in a subshell so we
 983     # can redirect the "Terminated" message from the shell.  SIGBUS
 984     # is not defined by standard C so it is used conditionally.
 985
 986     (check_exec "$@") >> $logfile 2>&1 <<EOF
 987 #include <signal.h>
 988 static void sighandler(int sig){
 989     raise(SIGTERM);
 990 }
 991 int func(void){
 992     $code
 993 }
 994 int (*func_ptr)(void) = func;
 995 int main(void){
 996     signal(SIGILL, sighandler);
 997     signal(SIGFPE, sighandler);
 998     signal(SIGSEGV, sighandler);
 999 #ifdef SIGBUS
1000     signal(SIGBUS, sighandler);
1001 #endif
1002     return func_ptr();
1003 }
1004 EOF
1005 }
1006
1007 check_type(){
1008     log check_type "$@"
1009     headers=$1
1010     type=$2
1011     shift 2
1012     disable_safe "$type"
1013     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1014 }
1015
1016 check_struct(){
1017     log check_type "$@"
1018     headers=$1
1019     struct=$2
1020     member=$3
1021     shift 3
1022     disable_safe "${struct}_${member}"
1023     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1024         enable_safe "${struct}_${member}"
1025 }
1026
1027 require(){
1028     name="$1"
1029     header="$2"
1030     func="$3"
1031     shift 3
1032     check_lib $header $func "$@" || die "ERROR: $name not found"
1033 }
1034
1035 require2(){
1036     name="$1"
1037     headers="$2"
1038     func="$3"
1039     shift 3
1040     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1041 }
1042
1043 require_cpp(){
1044     name="$1"
1045     headers="$2"
1046     classes="$3"
1047     shift 3
1048     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1049 }
1050
1051 require_pkg_config(){
1052     pkg="$1"
1053     check_pkg_config "$@" || die "ERROR: $pkg not found"
1054     add_cflags    $(get_safe ${pkg}_cflags)
1055     add_extralibs $(get_safe ${pkg}_libs)
1056 }
1057
1058 hostcc_o(){
1059     eval printf '%s\\n' $HOSTCC_O
1060 }
1061
1062 check_host_cc(){
1063     log check_host_cc "$@"
1064     cat > $TMPC
1065     log_file $TMPC
1066     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1067 }
1068
1069 check_host_cflags(){
1070     log check_host_cflags "$@"
1071     set -- $($host_cflags_filter "$@")
1072     check_host_cc "$@" <<EOF && append host_cflags "$@"
1073 int x;
1074 EOF
1075 }
1076
1077 apply(){
1078     file=$1
1079     shift
1080     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1081 }
1082
1083 cp_if_changed(){
1084     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1085     mkdir -p "$(dirname $2)"
1086     $cp_f "$1" "$2"
1087 }
1088
1089 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1090 # system-dependent things.
1091
1092 COMPONENT_LIST="
1093     bsfs
1094     decoders
1095     demuxers
1096     encoders
1097     filters
1098     hwaccels
1099     indevs
1100     muxers
1101     outdevs
1102     parsers
1103     protocols
1104 "
1105
1106 DOCUMENT_LIST="
1107     doc
1108     htmlpages
1109     manpages
1110     podpages
1111     txtpages
1112 "
1113
1114 HWACCEL_LIST="
1115     dxva2
1116     vaapi
1117     vda
1118     vdpau
1119 "
1120
1121 LIBRARY_LIST="
1122     avcodec
1123     avdevice
1124     avfilter
1125     avformat
1126     avresample
1127     avutil
1128     postproc
1129     swresample
1130     swscale
1131 "
1132
1133 PROGRAM_LIST="
1134     ffplay
1135     ffprobe
1136     ffserver
1137     ffmpeg
1138 "
1139
1140 CONFIG_LIST="
1141     $COMPONENT_LIST
1142     $DOCUMENT_LIST
1143     $HWACCEL_LIST
1144     $LIBRARY_LIST
1145     $PROGRAM_LIST
1146     avisynth
1147     bzlib
1148     crystalhd
1149     dct
1150     dwt
1151     fast_unaligned
1152     fft
1153     fontconfig
1154     frei0r
1155     ftrapv
1156     gnutls
1157     gpl
1158     gray
1159     hardcoded_tables
1160     incompatible_fork_abi
1161     libaacplus
1162     libass
1163     libbluray
1164     libcaca
1165     libcdio
1166     libcelt
1167     libdc1394
1168     libfaac
1169     libfdk_aac
1170     libflite
1171     libfreetype
1172     libgsm
1173     libiec61883
1174     libilbc
1175     libmodplug
1176     libmp3lame
1177     libnut
1178     libopencore_amrnb
1179     libopencore_amrwb
1180     libopencv
1181     libopenjpeg
1182     libopus
1183     libpulse
1184     librtmp
1185     libschroedinger
1186     libsoxr
1187     libspeex
1188     libstagefright_h264
1189     libtheora
1190     libtwolame
1191     libutvideo
1192     libv4l2
1193     libvo_aacenc
1194     libvo_amrwbenc
1195     libvorbis
1196     libvpx
1197     libx264
1198     libxavs
1199     libxvid
1200     lsp
1201     lzo
1202     mdct
1203     memalign_hack
1204     memory_poisoning
1205     network
1206     nonfree
1207     openal
1208     openssl
1209     pic
1210     rdft
1211     runtime_cpudetect
1212     safe_bitstream_reader
1213     shared
1214     small
1215     sram
1216     static
1217     swscale_alpha
1218     thumb
1219     version3
1220     xmm_clobber_test
1221     x11grab
1222     zlib
1223 "
1224
1225 THREADS_LIST='
1226     pthreads
1227     w32threads
1228     os2threads
1229 '
1230
1231 ARCH_LIST='
1232     aarch64
1233     alpha
1234     arm
1235     avr32
1236     avr32_ap
1237     avr32_uc
1238     bfin
1239     ia64
1240     m68k
1241     mips
1242     mips64
1243     parisc
1244     ppc
1245     ppc64
1246     s390
1247     sh4
1248     sparc
1249     sparc64
1250     tilegx
1251     tilepro
1252     tomi
1253     x86
1254     x86_32
1255     x86_64
1256 '
1257
1258 ARCH_EXT_LIST_ARM='
1259     armv5te
1260     armv6
1261     armv6t2
1262     neon
1263     vfp
1264     vfpv3
1265 '
1266
1267 ARCH_EXT_LIST_X86='
1268     amd3dnow
1269     amd3dnowext
1270     avx
1271     fma4
1272     mmx
1273     mmxext
1274     sse
1275     sse2
1276     sse3
1277     sse4
1278     sse42
1279     ssse3
1280 '
1281
1282 ARCH_EXT_LIST="
1283     $ARCH_EXT_LIST_ARM
1284     $ARCH_EXT_LIST_X86
1285     altivec
1286     ppc4xx
1287     vis
1288     mipsfpu
1289     mips32r2
1290     mipsdspr1
1291     mipsdspr2
1292 "
1293
1294 HAVE_LIST_CMDLINE='
1295     inline_asm
1296     symver
1297     yasm
1298 '
1299
1300 HAVE_LIST_PUB='
1301     bigendian
1302     fast_unaligned
1303     incompatible_fork_abi
1304 '
1305
1306 MATH_FUNCS="
1307     atanf
1308     atan2f
1309     cbrt
1310     cbrtf
1311     cosf
1312     exp2
1313     exp2f
1314     expf
1315     isinf
1316     isnan
1317     ldexpf
1318     llrint
1319     llrintf
1320     log2
1321     log2f
1322     log10f
1323     lrint
1324     lrintf
1325     powf
1326     rint
1327     round
1328     roundf
1329     sinf
1330     trunc
1331     truncf
1332 "
1333
1334 HAVE_LIST="
1335     $ARCH_EXT_LIST
1336     $(add_suffix _external $ARCH_EXT_LIST)
1337     $(add_suffix _inline   $ARCH_EXT_LIST)
1338     $HAVE_LIST_CMDLINE
1339     $HAVE_LIST_PUB
1340     $THREADS_LIST
1341     $MATH_FUNCS
1342     access
1343     aligned_malloc
1344     aligned_stack
1345     alsa_asoundlib_h
1346     altivec_h
1347     arpa_inet_h
1348     asm_mod_q
1349     asm_mod_y
1350     asm_types_h
1351     attribute_may_alias
1352     attribute_packed
1353     cdio_paranoia_h
1354     cdio_paranoia_paranoia_h
1355     clock_gettime
1356     closesocket
1357     cmov
1358     CommandLineToArgvW
1359     cpunop
1360     CryptGenRandom
1361     dcbzl
1362     dev_bktr_ioctl_bt848_h
1363     dev_bktr_ioctl_meteor_h
1364     dev_ic_bt8xx_h
1365     dev_video_bktr_ioctl_bt848_h
1366     dev_video_meteor_ioctl_meteor_h
1367     direct_h
1368     dlfcn_h
1369     dlopen
1370     dos_paths
1371     dxva_h
1372     ebp_available
1373     ebx_available
1374     fast_64bit
1375     fast_clz
1376     fast_cmov
1377     fcntl
1378     fork
1379     getaddrinfo
1380     gethrtime
1381     getopt
1382     GetProcessAffinityMask
1383     GetProcessMemoryInfo
1384     GetProcessTimes
1385     GetSystemTimeAsFileTime
1386     getrusage
1387     getservbyport
1388     gettimeofday
1389     glob
1390     gnu_as
1391     gsm_h
1392     ibm_asm
1393     inet_aton
1394     io_h
1395     isatty
1396     jack_port_get_latency_range
1397     kbhit
1398     ldbrx
1399     libdc1394_1
1400     libdc1394_2
1401     local_aligned_16
1402     local_aligned_8
1403     localtime_r
1404     loongson
1405     lzo1x_999_compress
1406     machine_ioctl_bt848_h
1407     machine_ioctl_meteor_h
1408     makeinfo
1409     malloc_h
1410     MapViewOfFile
1411     memalign
1412     mkstemp
1413     mm_empty
1414     mmap
1415     mprotect
1416     msvcrt
1417     nanosleep
1418     openjpeg_1_5_openjpeg_h
1419     PeekNamedPipe
1420     perl
1421     pod2man
1422     poll_h
1423     posix_memalign
1424     pthread_cancel
1425     rdtsc
1426     rsync_contimeout
1427     sched_getaffinity
1428     sdl
1429     sdl_video_size
1430     SetConsoleTextAttribute
1431     setmode
1432     setrlimit
1433     Sleep
1434     sndio_h
1435     socklen_t
1436     soundcard_h
1437     strerror_r
1438     struct_addrinfo
1439     struct_group_source_req
1440     struct_ip_mreq_source
1441     struct_ipv6_mreq
1442     struct_pollfd
1443     struct_rusage_ru_maxrss
1444     struct_sctp_event_subscribe
1445     struct_sockaddr_in6
1446     struct_sockaddr_sa_len
1447     struct_sockaddr_storage
1448     struct_v4l2_frmivalenum_discrete
1449     symver_asm_label
1450     symver_gnu_asm
1451     sysconf
1452     sysctl
1453     sys_mman_h
1454     sys_param_h
1455     sys_resource_h
1456     sys_select_h
1457     sys_soundcard_h
1458     sys_time_h
1459     sys_videoio_h
1460     termios_h
1461     texi2html
1462     threads
1463     unistd_h
1464     usleep
1465     vfp_args
1466     VirtualAlloc
1467     windows_h
1468     winsock2_h
1469     xform_asm
1470     xmm_clobbers
1471 "
1472
1473 # options emitted with CONFIG_ prefix but not available on the command line
1474 CONFIG_EXTRA="
1475     aandcttables
1476     ac3dsp
1477     error_resilience
1478     gcrypt
1479     golomb
1480     gplv3
1481     h264chroma
1482     h264dsp
1483     h264pred
1484     h264qpel
1485     huffman
1486     lgplv3
1487     lpc
1488     mpegaudio
1489     mpegaudiodsp
1490     mpegvideo
1491     mpegvideoenc
1492     nettle
1493     rangecoder
1494     rtpdec
1495     rtpenc_chain
1496     sinewin
1497     videodsp
1498     vp3dsp
1499 "
1500
1501 CMDLINE_SELECT="
1502     $ARCH_EXT_LIST
1503     $CONFIG_LIST
1504     $HAVE_LIST_CMDLINE
1505     $THREADS_LIST
1506     asm
1507     coverage
1508     cross_compile
1509     debug
1510     extra_warnings
1511     logging
1512     lto
1513     optimizations
1514     stripping
1515 "
1516
1517 PATHS_LIST='
1518     bindir
1519     datadir
1520     incdir
1521     libdir
1522     mandir
1523     prefix
1524     shlibdir
1525 '
1526
1527 CMDLINE_SET="
1528     $PATHS_LIST
1529     ar
1530     arch
1531     as
1532     assert_level
1533     build_suffix
1534     cc
1535     cpu
1536     cross_prefix
1537     cxx
1538     dep_cc
1539     extra_version
1540     host_cc
1541     host_cflags
1542     host_ld
1543     host_ldflags
1544     host_libs
1545     host_os
1546     install
1547     ld
1548     logfile
1549     malloc_prefix
1550     nm
1551     optflags
1552     pkg_config
1553     progs_suffix
1554     random_seed
1555     samples
1556     strip
1557     sysinclude
1558     sysroot
1559     target_exec
1560     target_os
1561     target_path
1562     toolchain
1563     valgrind
1564     yasmexe
1565 "
1566
1567 CMDLINE_APPEND="
1568     extra_cflags
1569     extra_cxxflags
1570 "
1571
1572 # code dependency declarations
1573
1574 # architecture extensions
1575
1576 armv5te_deps="arm"
1577 armv6_deps="arm"
1578 armv6t2_deps="arm"
1579 neon_deps="arm"
1580 vfp_deps="arm"
1581 vfpv3_deps="vfp"
1582
1583 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1584
1585 mipsfpu_deps="mips"
1586 mips32r2_deps="mips"
1587 mipsdspr1_deps="mips"
1588 mipsdspr2_deps="mips"
1589
1590 altivec_deps="ppc"
1591 ppc4xx_deps="ppc"
1592
1593 vis_deps="sparc"
1594
1595 x86_64_suggest="cmov fast_cmov"
1596
1597 amd3dnow_deps="mmx"
1598 amd3dnowext_deps="amd3dnow"
1599 mmx_deps="x86"
1600 mmxext_deps="mmx"
1601 sse_deps="mmxext"
1602 sse2_deps="sse"
1603 sse3_deps="sse2"
1604 ssse3_deps="sse3"
1605 sse4_deps="ssse3"
1606 sse42_deps="sse4"
1607 avx_deps="sse42"
1608 fma4_deps="avx"
1609
1610 mmx_external_deps="yasm"
1611 mmx_inline_deps="inline_asm"
1612 mmx_suggest="mmx_external mmx_inline"
1613
1614 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1615     eval dep=\$${ext}_deps
1616     eval ${ext}_external_deps='"${dep}_external"'
1617     eval ${ext}_inline_deps='"${dep}_inline"'
1618     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1619 done
1620
1621 aligned_stack_if_any="ppc x86"
1622 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1623 fast_clz_if_any="alpha avr32 mips ppc x86"
1624 fast_unaligned_if_any="ppc x86"
1625
1626 inline_asm_deps="!tms470"
1627 need_memalign="altivec neon sse"
1628
1629 symver_if_any="symver_asm_label symver_gnu_asm"
1630
1631 log2_deps="!msvcrt"
1632
1633 # subsystems
1634 dct_select="rdft"
1635 mdct_select="fft"
1636 rdft_select="fft"
1637 mpegaudio_select="mpegaudiodsp"
1638 mpegaudiodsp_select="dct"
1639 mpegvideo_select="videodsp"
1640 mpegvideoenc_select="mpegvideo"
1641
1642 # decoders / encoders
1643 aac_decoder_select="mdct sinewin"
1644 aac_encoder_select="mdct sinewin"
1645 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1646 ac3_decoder_select="mdct ac3dsp ac3_parser"
1647 ac3_encoder_select="mdct ac3dsp"
1648 ac3_fixed_encoder_select="mdct ac3dsp"
1649 alac_encoder_select="lpc"
1650 amrnb_decoder_select="lsp"
1651 amrwb_decoder_select="lsp"
1652 amv_encoder_select="aandcttables"
1653 atrac1_decoder_select="mdct sinewin"
1654 atrac3_decoder_select="mdct"
1655 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1656 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1657 cavs_decoder_select="golomb mpegvideo"
1658 comfortnoise_encoder_select="lpc"
1659 cook_decoder_select="mdct sinewin"
1660 cscd_decoder_select="lzo"
1661 cscd_decoder_suggest="zlib"
1662 dca_decoder_select="mdct"
1663 dirac_decoder_select="dwt golomb videodsp"
1664 dnxhd_encoder_select="aandcttables mpegvideoenc"
1665 dxa_decoder_select="zlib"
1666 eac3_decoder_select="ac3_decoder"
1667 eac3_encoder_select="ac3_encoder"
1668 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1669 eatgq_decoder_select="aandcttables"
1670 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1671 exr_decoder_select="zlib"
1672 ffv1_decoder_select="golomb rangecoder"
1673 ffv1_encoder_select="rangecoder"
1674 ffvhuff_encoder_select="huffman"
1675 flac_decoder_select="golomb"
1676 flac_encoder_select="golomb lpc"
1677 flashsv_decoder_select="zlib"
1678 flashsv_encoder_select="zlib"
1679 flashsv2_encoder_select="zlib"
1680 flashsv2_decoder_select="zlib"
1681 flv_decoder_select="h263_decoder"
1682 flv_encoder_select="h263_encoder"
1683 fraps_decoder_select="huffman"
1684 h261_decoder_select="error_resilience mpegvideo"
1685 h261_encoder_select="aandcttables mpegvideoenc"
1686 h263_decoder_select="error_resilience h263_parser mpegvideo"
1687 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1688 h263i_decoder_select="h263_decoder"
1689 h263p_encoder_select="h263_encoder"
1690 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1691 huffyuv_encoder_select="huffman"
1692 iac_decoder_select="fft mdct sinewin"
1693 imc_decoder_select="fft mdct sinewin"
1694 jpegls_decoder_select="golomb"
1695 jpegls_encoder_select="golomb"
1696 ljpeg_encoder_select="aandcttables mpegvideoenc"
1697 loco_decoder_select="golomb"
1698 mdec_decoder_select="error_resilience mpegvideo"
1699 mjpeg_encoder_select="aandcttables mpegvideoenc"
1700 mlp_decoder_select="mlp_parser"
1701 mp1_decoder_select="mpegaudio"
1702 mp1float_decoder_select="mpegaudio"
1703 mp2_decoder_select="mpegaudio"
1704 mp2float_decoder_select="mpegaudio"
1705 mp3_decoder_select="mpegaudio"
1706 mp3adu_decoder_select="mpegaudio"
1707 mp3adufloat_decoder_select="mpegaudio"
1708 mp3float_decoder_select="mpegaudio"
1709 mp3on4_decoder_select="mpegaudio"
1710 mp3on4float_decoder_select="mpegaudio"
1711 mpc7_decoder_select="mpegaudiodsp"
1712 mpc8_decoder_select="mpegaudiodsp"
1713 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1714 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1715 mpeg1video_decoder_select="error_resilience mpegvideo"
1716 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1717 mpeg2video_decoder_select="error_resilience mpegvideo"
1718 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1719 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1720 mpeg4_encoder_select="h263_encoder"
1721 msmpeg4v1_decoder_select="h263_decoder"
1722 msmpeg4v1_encoder_select="h263_encoder"
1723 msmpeg4v2_decoder_select="h263_decoder"
1724 msmpeg4v2_encoder_select="h263_encoder"
1725 msmpeg4v3_decoder_select="h263_decoder"
1726 msmpeg4v3_encoder_select="h263_encoder"
1727 mss2_decoder_select="vc1_decoder"
1728 nellymoser_decoder_select="mdct sinewin"
1729 nellymoser_encoder_select="mdct sinewin"
1730 nuv_decoder_select="lzo"
1731 png_decoder_select="zlib"
1732 png_encoder_select="zlib"
1733 qcelp_decoder_select="lsp"
1734 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1735 ra_144_encoder_select="lpc"
1736 ralf_decoder_select="golomb"
1737 rv10_decoder_select="h263_decoder"
1738 rv10_encoder_select="h263_encoder"
1739 rv20_decoder_select="h263_decoder"
1740 rv20_encoder_select="h263_encoder"
1741 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1742 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1743 shorten_decoder_select="golomb"
1744 sipr_decoder_select="lsp"
1745 snow_decoder_select="dwt rangecoder"
1746 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1747 sonic_decoder_select="golomb"
1748 sonic_encoder_select="golomb"
1749 sonic_ls_encoder_select="golomb"
1750 svq1_decoder_select="error_resilience mpegvideo"
1751 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1752 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1753 svq3_decoder_suggest="zlib"
1754 theora_decoder_select="vp3_decoder"
1755 tiff_decoder_suggest="zlib"
1756 tiff_encoder_suggest="zlib"
1757 truehd_decoder_select="mlp_parser"
1758 tscc_decoder_select="zlib"
1759 twinvq_decoder_select="mdct lsp sinewin"
1760 utvideo_encoder_select="huffman"
1761 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1762 vc1image_decoder_select="vc1_decoder"
1763 vorbis_decoder_select="mdct"
1764 vorbis_encoder_select="mdct"
1765 vp3_decoder_select="vp3dsp videodsp"
1766 vp5_decoder_select="vp3dsp videodsp"
1767 vp6_decoder_select="huffman vp3dsp videodsp"
1768 vp6a_decoder_select="vp6_decoder"
1769 vp6f_decoder_select="vp6_decoder"
1770 vp8_decoder_select="h264pred videodsp"
1771 wmapro_decoder_select="mdct sinewin"
1772 wmav1_decoder_select="mdct sinewin"
1773 wmav1_encoder_select="mdct sinewin"
1774 wmav2_decoder_select="mdct sinewin"
1775 wmav2_encoder_select="mdct sinewin"
1776 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1777 wmv1_decoder_select="h263_decoder"
1778 wmv1_encoder_select="h263_encoder"
1779 wmv2_decoder_select="h263_decoder"
1780 wmv2_encoder_select="h263_encoder"
1781 wmv3_decoder_select="vc1_decoder"
1782 wmv3image_decoder_select="wmv3_decoder"
1783 zerocodec_decoder_select="zlib"
1784 zlib_decoder_select="zlib"
1785 zlib_encoder_select="zlib"
1786 zmbv_decoder_select="zlib"
1787 zmbv_encoder_select="zlib"
1788
1789 # hardware accelerators
1790 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1791 vaapi_deps="va_va_h"
1792 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1793 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1794
1795 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1796 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1797 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1798 h264_dxva2_hwaccel_deps="dxva2api_h"
1799 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1800 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1801 h264_vda_decoder_select="vda h264_parser h264_decoder"
1802 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1803 h264_vda_hwaccel_select="vda h264_decoder"
1804 h264_vdpau_decoder_select="vdpau h264_decoder"
1805 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1806 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1807 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1808 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1809 mpeg2_crystalhd_decoder_select="crystalhd"
1810 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1811 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1812 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1813 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1814 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1815 mpeg4_crystalhd_decoder_select="crystalhd"
1816 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1817 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1818 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1819 msmpeg4_crystalhd_decoder_select="crystalhd"
1820 vc1_crystalhd_decoder_select="crystalhd"
1821 vc1_dxva2_hwaccel_deps="dxva2api_h"
1822 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1823 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1824 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1825 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1826 wmv3_crystalhd_decoder_select="crystalhd"
1827 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1828 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1829 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1830 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1831
1832 # parsers
1833 h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1834 mpeg4video_parser_select="error_resilience mpegvideo"
1835 mpegvideo_parser_select="error_resilience mpegvideo"
1836 vc1_parser_select="error_resilience mpegvideo"
1837
1838 # external libraries
1839 libaacplus_encoder_deps="libaacplus"
1840 libcelt_decoder_deps="libcelt"
1841 libfaac_encoder_deps="libfaac"
1842 libfdk_aac_encoder_deps="libfdk_aac"
1843 libgsm_decoder_deps="libgsm"
1844 libgsm_encoder_deps="libgsm"
1845 libgsm_ms_decoder_deps="libgsm"
1846 libgsm_ms_encoder_deps="libgsm"
1847 libilbc_decoder_deps="libilbc"
1848 libilbc_encoder_deps="libilbc"
1849 libmodplug_demuxer_deps="libmodplug"
1850 libmp3lame_encoder_deps="libmp3lame"
1851 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1852 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1853 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1854 libopenjpeg_decoder_deps="libopenjpeg"
1855 libopenjpeg_encoder_deps="libopenjpeg"
1856 libopus_decoder_deps="libopus"
1857 libopus_encoder_deps="libopus"
1858 libschroedinger_decoder_deps="libschroedinger"
1859 libschroedinger_encoder_deps="libschroedinger"
1860 libspeex_decoder_deps="libspeex"
1861 libspeex_encoder_deps="libspeex"
1862 libstagefright_h264_decoder_deps="libstagefright_h264"
1863 libtheora_encoder_deps="libtheora"
1864 libtwolame_encoder_deps="libtwolame"
1865 libvo_aacenc_encoder_deps="libvo_aacenc"
1866 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1867 libvorbis_decoder_deps="libvorbis"
1868 libvorbis_encoder_deps="libvorbis"
1869 libvpx_vp8_decoder_deps="libvpx"
1870 libvpx_vp8_encoder_deps="libvpx"
1871 libvpx_vp9_decoder_deps="libvpx"
1872 libvpx_vp9_encoder_deps="libvpx"
1873 libx264_encoder_deps="libx264"
1874 libx264rgb_encoder_deps="libx264"
1875 libxavs_encoder_deps="libxavs"
1876 libxvid_encoder_deps="libxvid"
1877 libutvideo_decoder_deps="libutvideo"
1878 libutvideo_encoder_deps="libutvideo"
1879
1880 # demuxers / muxers
1881 ac3_demuxer_select="ac3_parser"
1882 asf_stream_muxer_select="asf_muxer"
1883 avisynth_demuxer_deps="avisynth"
1884 dirac_demuxer_select="dirac_parser"
1885 dts_demuxer_select="dca_parser"
1886 dtshd_demuxer_select="dca_parser"
1887 eac3_demuxer_select="ac3_parser"
1888 f4v_muxer_select="mov_muxer"
1889 flac_demuxer_select="flac_parser"
1890 ipod_muxer_select="mov_muxer"
1891 ismv_muxer_select="mov_muxer"
1892 libnut_demuxer_deps="libnut"
1893 libnut_muxer_deps="libnut"
1894 matroska_audio_muxer_select="matroska_muxer"
1895 matroska_demuxer_suggest="bzlib lzo zlib"
1896 mov_demuxer_suggest="zlib"
1897 mov_muxer_select="rtpenc_chain"
1898 mp3_demuxer_select="mpegaudio_parser"
1899 mp4_muxer_select="mov_muxer"
1900 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1901 mpegtsraw_demuxer_select="mpegts_demuxer"
1902 mxf_d10_muxer_select="mxf_muxer"
1903 ogg_demuxer_select="golomb"
1904 psp_muxer_select="mov_muxer"
1905 rtp_demuxer_select="sdp_demuxer"
1906 rtp_muxer_select="mpegvideo"
1907 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1908 rtsp_demuxer_select="http_protocol rtpdec"
1909 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1910 sap_demuxer_select="sdp_demuxer"
1911 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1912 sdp_demuxer_select="rtpdec"
1913 smoothstreaming_muxer_select="ismv_muxer"
1914 spdif_muxer_select="aac_parser"
1915 tak_demuxer_select="tak_parser"
1916 tg2_muxer_select="mov_muxer"
1917 tgp_muxer_select="mov_muxer"
1918 vobsub_demuxer_select="mpegps_demuxer"
1919 w64_demuxer_deps="wav_demuxer"
1920 w64_muxer_deps="wav_muxer"
1921
1922 # indevs / outdevs
1923 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1924 alsa_outdev_deps="alsa_asoundlib_h"
1925 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1926 caca_outdev_deps="libcaca"
1927 dshow_indev_deps="IBaseFilter"
1928 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1929 dv1394_indev_deps="dv1394 dv_demuxer"
1930 fbdev_indev_deps="linux_fb_h"
1931 iec61883_indev_deps="libiec61883"
1932 jack_indev_deps="jack_jack_h sem_timedwait"
1933 lavfi_indev_deps="avfilter"
1934 libcdio_indev_deps="libcdio"
1935 libdc1394_indev_deps="libdc1394"
1936 libv4l2_indev_deps="libv4l2"
1937 openal_indev_deps="openal"
1938 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1939 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1940 pulse_indev_deps="libpulse"
1941 sdl_outdev_deps="sdl"
1942 sndio_indev_deps="sndio_h"
1943 sndio_outdev_deps="sndio_h"
1944 v4l_indev_deps="linux_videodev_h"
1945 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1946 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1947 vfwcap_indev_extralibs="-lavicap32"
1948 x11grab_indev_deps="x11grab"
1949
1950 # protocols
1951 bluray_protocol_deps="libbluray"
1952 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1953 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1954 ffrtmpcrypt_protocol_select="tcp_protocol"
1955 ffrtmphttp_protocol_deps="!librtmp_protocol"
1956 ffrtmphttp_protocol_select="http_protocol"
1957 gopher_protocol_select="network"
1958 httpproxy_protocol_select="tcp_protocol"
1959 http_protocol_select="tcp_protocol"
1960 https_protocol_select="tls_protocol"
1961 librtmp_protocol_deps="librtmp"
1962 librtmpe_protocol_deps="librtmp"
1963 librtmps_protocol_deps="librtmp"
1964 librtmpt_protocol_deps="librtmp"
1965 librtmpte_protocol_deps="librtmp"
1966 mmsh_protocol_select="http_protocol"
1967 mmst_protocol_select="network"
1968 rtmp_protocol_deps="!librtmp_protocol"
1969 rtmp_protocol_select="tcp_protocol"
1970 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1971 rtmps_protocol_deps="!librtmp_protocol"
1972 rtmps_protocol_select="tls_protocol"
1973 rtmpt_protocol_select="ffrtmphttp_protocol"
1974 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1975 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1976 rtp_protocol_select="udp_protocol"
1977 sctp_protocol_deps="struct_sctp_event_subscribe"
1978 sctp_protocol_select="network"
1979 srtp_protocol_select="rtp_protocol"
1980 tcp_protocol_select="network"
1981 tls_protocol_deps_any="openssl gnutls"
1982 tls_protocol_select="tcp_protocol"
1983 udp_protocol_select="network"
1984
1985 # filters
1986 aconvert_filter_deps="swresample"
1987 amovie_filter_deps="avcodec avformat"
1988 aresample_filter_deps="swresample"
1989 ass_filter_deps="libass"
1990 asyncts_filter_deps="avresample"
1991 atempo_filter_deps="avcodec rdft"
1992 blackframe_filter_deps="gpl"
1993 boxblur_filter_deps="gpl"
1994 colormatrix_filter_deps="gpl"
1995 cropdetect_filter_deps="gpl"
1996 decimate_filter_deps="gpl avcodec"
1997 delogo_filter_deps="gpl"
1998 deshake_filter_deps="avcodec"
1999 drawtext_filter_deps="libfreetype"
2000 ebur128_filter_deps="gpl"
2001 flite_filter_deps="libflite"
2002 frei0r_filter_deps="frei0r dlopen"
2003 frei0r_filter_extralibs='$ldl'
2004 frei0r_src_filter_deps="frei0r dlopen"
2005 frei0r_src_filter_extralibs='$ldl'
2006 geq_filter_deps="gpl"
2007 histeq_filter_deps="gpl"
2008 hqdn3d_filter_deps="gpl"
2009 hue_filter_deps="gpl"
2010 kerndeint_filter_deps="gpl"
2011 movie_filter_deps="avcodec avformat"
2012 mp_filter_deps="gpl avcodec swscale inline_asm"
2013 mptestsrc_filter_deps="gpl"
2014 negate_filter_deps="lut_filter"
2015 noise_filter_deps="gpl"
2016 resample_filter_deps="avresample"
2017 ocv_filter_deps="libopencv"
2018 pan_filter_deps="swresample"
2019 pp_filter_deps="gpl postproc"
2020 removelogo_filter_deps="avcodec avformat swscale"
2021 scale_filter_deps="swscale"
2022 smartblur_filter_deps="gpl swscale"
2023 showspectrum_filter_deps="avcodec rdft"
2024 subtitles_filter_deps="avformat avcodec libass"
2025 super2xsai_filter_deps="gpl"
2026 tinterlace_filter_deps="gpl"
2027 yadif_filter_deps="gpl"
2028 pixfmts_super2xsai_test_deps="super2xsai_filter"
2029 tinterlace_merge_test_deps="tinterlace_filter"
2030 tinterlace_pad_test_deps="tinterlace_filter"
2031
2032 # libraries
2033 avcodec_deps="avutil"
2034 avdevice_deps="avutil avcodec avformat"
2035 avfilter_deps="avutil"
2036 avformat_deps="avutil avcodec"
2037 avresample_deps="avutil"
2038 postproc_deps="avutil gpl"
2039 swscale_deps="avutil"
2040
2041 # programs
2042 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2043 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2044                setpts_filter null_filter anull_filter ffabuffersink_filter"
2045 ffplay_deps="avcodec avformat swscale swresample sdl"
2046 ffplay_select="ffbuffersink_filter rdft crop_filter"
2047 ffprobe_deps="avcodec avformat"
2048 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2049 ffserver_extralibs='$ldl'
2050
2051 # documentation
2052 podpages_deps="perl"
2053 manpages_deps="perl pod2man"
2054 htmlpages_deps="texi2html"
2055 txtpages_deps="makeinfo"
2056 doc_deps_any="manpages htmlpages podpages txtpages"
2057
2058 # default parameters
2059
2060 logfile="config.log"
2061
2062 # installation paths
2063 prefix_default="/usr/local"
2064 bindir_default='${prefix}/bin'
2065 datadir_default='${prefix}/share/ffmpeg'
2066 incdir_default='${prefix}/include'
2067 libdir_default='${prefix}/lib'
2068 mandir_default='${prefix}/share/man'
2069 shlibdir_default="$libdir_default"
2070
2071 # toolchain
2072 ar_default="ar"
2073 cc_default="gcc"
2074 cxx_default="g++"
2075 host_cc_default="gcc"
2076 cp_f="cp -f"
2077 install="install"
2078 ln_s="ln -sf"
2079 nm_default="nm -g"
2080 objformat="elf"
2081 pkg_config_default=pkg-config
2082 ranlib="ranlib"
2083 strip_default="strip"
2084 yasmexe_default="yasm"
2085
2086 nogas=":"
2087
2088 # machine
2089 arch_default=$(uname -m)
2090 cpu="generic"
2091
2092 # OS
2093 target_os_default=$(tolower $(uname -s))
2094 host_os=$target_os_default
2095
2096 # configurable options
2097 enable $PROGRAM_LIST
2098 enable $DOCUMENT_LIST
2099 enable $(filter_out avresample $LIBRARY_LIST)
2100 enable stripping
2101
2102 enable asm
2103 enable debug
2104 enable doc
2105 enable optimizations
2106 enable runtime_cpudetect
2107 enable safe_bitstream_reader
2108 enable static
2109 enable swscale_alpha
2110
2111 # build settings
2112 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2113 FFSERVERLDFLAGS=-Wl,-E
2114 LIBPREF="lib"
2115 LIBSUF=".a"
2116 FULLNAME='$(NAME)$(BUILDSUF)'
2117 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2118 SLIBPREF="lib"
2119 SLIBSUF=".so"
2120 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2121 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2122 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2123 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2124 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2125 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2126
2127 asflags_filter=echo
2128 cflags_filter=echo
2129 ldflags_filter=echo
2130
2131 AS_C='-c'
2132 AS_O='-o $@'
2133 CC_C='-c'
2134 CC_E='-E -o $@'
2135 CC_O='-o $@'
2136 CXX_C='-c'
2137 CXX_O='-o $@'
2138 LD_O='-o $@'
2139 LD_LIB='-l%'
2140 LD_PATH='-L'
2141 HOSTCC_C='-c'
2142 HOSTCC_O='-o $@'
2143 HOSTLD_O='-o $@'
2144
2145 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2146 host_libs='-lm'
2147 host_cflags_filter=echo
2148 host_ldflags_filter=echo
2149
2150 target_path='$(CURDIR)'
2151
2152 # since the object filename is not given with the -MM flag, the compiler
2153 # is only able to print the basename, and we must add the path ourselves
2154 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2155 DEPFLAGS='-MM'
2156
2157 # find source path
2158 if test -f configure; then
2159     source_path=.
2160 else
2161     source_path=$(cd $(dirname "$0"); pwd)
2162     echo "$source_path" | grep -q '[[:blank:]]' &&
2163         die "Out of tree builds are impossible with whitespace in source path."
2164     test -e "$source_path/config.h" &&
2165         die "Out of tree builds are impossible with config.h in source dir."
2166 fi
2167
2168 for v in "$@"; do
2169     r=${v#*=}
2170     l=${v%"$r"}
2171     r=$(sh_quote "$r")
2172     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2173 done
2174
2175 find_things(){
2176     thing=$1
2177     pattern=$2
2178     file=$source_path/$3
2179     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2180 }
2181
2182 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2183 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2184 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2185 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2186 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2187 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2188 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2189 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2190 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2191 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2192 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2193
2194 ALL_COMPONENTS="
2195     $BSF_LIST
2196     $DECODER_LIST
2197     $DEMUXER_LIST
2198     $ENCODER_LIST
2199     $FILTER_LIST
2200     $HWACCEL_LIST
2201     $INDEV_LIST
2202     $MUXER_LIST
2203     $OUTDEV_LIST
2204     $PARSER_LIST
2205     $PROTOCOL_LIST
2206 "
2207
2208 for n in $COMPONENT_LIST; do
2209     v=$(toupper ${n%s})_LIST
2210     eval enable \$$v
2211     eval ${n}_if_any="\$$v"
2212 done
2213
2214 enable $ARCH_EXT_LIST
2215
2216 die_unknown(){
2217     echo "Unknown option \"$1\"."
2218     echo "See $0 --help for available options."
2219     exit 1
2220 }
2221
2222 show_list() {
2223     suffix=_$1
2224     shift
2225     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2226     exit 0
2227 }
2228
2229 rand_list(){
2230     IFS=', '
2231     set -- $*
2232     unset IFS
2233     for thing; do
2234         comp=${thing%:*}
2235         prob=${thing#$comp}
2236         prob=${prob#:}
2237         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2238         echo "prob ${prob:-0.5}"
2239         printf '%s\n' $comp
2240     done
2241 }
2242
2243 do_random(){
2244     action=$1
2245     shift
2246     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2247     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2248 }
2249
2250 for opt do
2251     optval="${opt#*=}"
2252     case "$opt" in
2253         --extra-ldflags=*)
2254             add_ldflags $optval
2255         ;;
2256         --extra-libs=*)
2257             add_extralibs $optval
2258         ;;
2259         --disable-devices)
2260             disable $INDEV_LIST $OUTDEV_LIST
2261         ;;
2262         --enable-debug=*)
2263             debuglevel="$optval"
2264         ;;
2265         --disable-programs)
2266             disable $PROGRAM_LIST
2267         ;;
2268         --disable-everything)
2269             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2270         ;;
2271         --disable-all)
2272             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2273             disable $LIBRARY_LIST $PROGRAM_LIST doc
2274         ;;
2275         --enable-random|--disable-random)
2276             action=${opt%%-random}
2277             do_random ${action#--} $COMPONENT_LIST
2278         ;;
2279         --enable-random=*|--disable-random=*)
2280             action=${opt%%-random=*}
2281             do_random ${action#--} $optval
2282         ;;
2283         --enable-*=*|--disable-*=*)
2284             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2285             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2286             eval list=\$$(toupper $thing)_LIST
2287             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2288             list=$(filter "$name" $list)
2289             [ "$list" = "" ] && warn "Option $opt did not match anything"
2290             $action $list
2291         ;;
2292         --enable-?*|--disable-?*)
2293             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2294             if is_in $option $COMPONENT_LIST; then
2295                 test $action = disable && action=unset
2296                 eval $action \$$(toupper ${option%s})_LIST
2297             elif is_in $option $CMDLINE_SELECT; then
2298                 $action $option
2299             else
2300                 die_unknown $opt
2301             fi
2302         ;;
2303         --list-*)
2304             NAME="${opt#--list-}"
2305             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2306             NAME=${NAME%s}
2307             eval show_list $NAME \$$(toupper $NAME)_LIST
2308         ;;
2309         --help|-h) show_help
2310         ;;
2311         --fatal-warnings) enable fatal_warnings
2312         ;;
2313         *)
2314             optname="${opt%%=*}"
2315             optname="${optname#--}"
2316             optname=$(echo "$optname" | sed 's/-/_/g')
2317             if is_in $optname $CMDLINE_SET; then
2318                 eval $optname='$optval'
2319             elif is_in $optname $CMDLINE_APPEND; then
2320                 append $optname "$optval"
2321             else
2322                 die_unknown $opt
2323             fi
2324         ;;
2325     esac
2326 done
2327
2328 disabled logging && logfile=/dev/null
2329
2330 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2331 set >> $logfile
2332
2333 test -n "$cross_prefix" && enable cross_compile
2334
2335 if enabled cross_compile; then
2336     test -n "$arch" && test -n "$target_os" ||
2337         die "Must specify target arch and OS when cross-compiling"
2338 fi
2339
2340 ar_default="${cross_prefix}${ar_default}"
2341 cc_default="${cross_prefix}${cc_default}"
2342 cxx_default="${cross_prefix}${cxx_default}"
2343 nm_default="${cross_prefix}${nm_default}"
2344 pkg_config_default="${cross_prefix}${pkg_config_default}"
2345 ranlib="${cross_prefix}${ranlib}"
2346 strip_default="${cross_prefix}${strip_default}"
2347
2348 sysinclude_default="${sysroot}/usr/include"
2349
2350 case "$toolchain" in
2351     clang-asan)
2352         cc_default="clang"
2353         add_cflags  -faddress-sanitizer
2354         add_ldflags -faddress-sanitizer
2355     ;;
2356     clang-tsan)
2357         cc_default="clang"
2358         add_cflags  -fthread-sanitizer
2359         add_ldflags -fthread-sanitizer
2360     ;;
2361     msvc)
2362         cc_default="c99wrap cl"
2363         ld_default="c99wrap link"
2364         nm_default="dumpbin -symbols"
2365         ar_default="lib"
2366         target_os_default="win32"
2367     ;;
2368     ?*)
2369         die "Unknown toolchain $toolchain"
2370     ;;
2371 esac
2372
2373 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2374 enabled cross_compile || host_cc_default=$cc
2375 set_default host_cc
2376
2377 if ! $pkg_config --version >/dev/null 2>&1; then
2378     warn "$pkg_config not found, library detection may fail."
2379     pkg_config=false
2380 fi
2381
2382 exesuf() {
2383     case $1 in
2384         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2385     esac
2386 }
2387
2388 EXESUF=$(exesuf $target_os)
2389 HOSTEXESUF=$(exesuf $host_os)
2390
2391 # set temporary file name
2392 : ${TMPDIR:=$TEMPDIR}
2393 : ${TMPDIR:=$TMP}
2394 : ${TMPDIR:=/tmp}
2395
2396 if ! check_cmd mktemp -u XXXXXX; then
2397     # simple replacement for missing mktemp
2398     # NOT SAFE FOR GENERAL USE
2399     mktemp(){
2400         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2401     }
2402 fi
2403
2404 tmpfile(){
2405     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2406         (set -C; exec > $tmp) 2>/dev/null ||
2407         die "Unable to create temporary file in $TMPDIR."
2408     append TMPFILES $tmp
2409     eval $1=$tmp
2410 }
2411
2412 trap 'rm -f -- $TMPFILES' EXIT
2413
2414 tmpfile TMPASM .asm
2415 tmpfile TMPC   .c
2416 tmpfile TMPCPP .cpp
2417 tmpfile TMPE   $EXESUF
2418 tmpfile TMPH   .h
2419 tmpfile TMPO   .o
2420 tmpfile TMPS   .S
2421 tmpfile TMPSH  .sh
2422 tmpfile TMPV   .ver
2423
2424 unset -f mktemp
2425
2426 chmod +x $TMPE
2427
2428 # make sure we can execute files in $TMPDIR
2429 cat > $TMPSH 2>> $logfile <<EOF
2430 #! /bin/sh
2431 EOF
2432 chmod +x $TMPSH >> $logfile 2>&1
2433 if ! $TMPSH >> $logfile 2>&1; then
2434     cat <<EOF
2435 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2436 variable to another directory and make sure that it is not mounted noexec.
2437 EOF
2438     die "Sanity test failed."
2439 fi
2440
2441 ccc_flags(){
2442     for flag; do
2443         case $flag in
2444             -std=c99)           echo -c99                       ;;
2445             -mcpu=*)            echo -arch ${flag#*=}           ;;
2446             -mieee)             echo -ieee                      ;;
2447             -O*|-fast)          echo $flag                      ;;
2448             -fno-math-errno)    echo -assume nomath_errno       ;;
2449             -g)                 echo -g3                        ;;
2450             -Wall)              echo -msg_enable level2         ;;
2451             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2452             -Wl,*)              echo $flag                      ;;
2453             -f*|-W*)                                            ;;
2454             *)                  echo $flag                      ;;
2455         esac
2456    done
2457 }
2458
2459 msvc_flags(){
2460     for flag; do
2461         case $flag in
2462             -fomit-frame-pointer) echo -Oy ;;
2463             -g)                   echo -Z7 ;;
2464             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2465                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2466                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2467                                        -wd4554 \
2468                                        -wd4996 -wd4273 ;;
2469             -std=c99)             ;;
2470             -fno-math-errno)      ;;
2471             -fno-common)          ;;
2472             -fno-signed-zeros)    ;;
2473             -fPIC)                ;;
2474             -lz)                  echo zlib.lib ;;
2475             -lavifil32)           echo vfw32.lib ;;
2476             -lavicap32)           echo vfw32.lib user32.lib ;;
2477             -l*)                  echo ${flag#-l}.lib ;;
2478             *)                    echo $flag ;;
2479         esac
2480     done
2481 }
2482
2483 pgi_flags(){
2484     for flag; do
2485         case $flag in
2486             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2487             -fomit-frame-pointer) echo -Mnoframe ;;
2488             -g)                   echo -gopt ;;
2489             *)                    echo $flag ;;
2490         esac
2491     done
2492 }
2493
2494 suncc_flags(){
2495     for flag; do
2496         case $flag in
2497             -march=*|-mcpu=*)
2498                 case "${flag#*=}" in
2499                     native)                   echo -xtarget=native       ;;
2500                     v9|niagara)               echo -xarch=sparc          ;;
2501                     ultrasparc)               echo -xarch=sparcvis       ;;
2502                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2503                     i586|pentium)             echo -xchip=pentium        ;;
2504                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2505                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2506                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2507                     pentium4*)          echo -xtarget=pentium4           ;;
2508                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2509                     *-sse3)             echo -xarch=sse3                 ;;
2510                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2511                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2512                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2513                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2514                     bdver*)                   echo -xarch=avx            ;;
2515                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2516                     k8|opteron|athlon64|athlon-fx)
2517                                               echo -xarch=sse2a          ;;
2518                     athlon*)                  echo -xarch=pentium_proa   ;;
2519                 esac
2520                 ;;
2521             -std=c99)             echo -xc99              ;;
2522             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2523             -fPIC)                echo -KPIC -xcode=pic32 ;;
2524             -W*,*)                echo $flag              ;;
2525             -f*-*|-W*|-mimpure-text)                      ;;
2526             -shared)              echo -G                 ;;
2527             *)                    echo $flag              ;;
2528         esac
2529     done
2530 }
2531
2532 tms470_flags(){
2533     for flag; do
2534         case $flag in
2535             -march=*|-mcpu=*)
2536                 case "${flag#*=}" in
2537                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2538                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2539                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2540                     armv6*|arm11*)          echo -mv=6   ;;
2541                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2542                                             echo -mv=5e  ;;
2543                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2544                 esac
2545                 ;;
2546             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2547             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2548             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2549             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2550             -msoft-float)   echo --float_support=vfplib       ;;
2551             -O[0-3]|-mf=*)  echo $flag                        ;;
2552             -g)             echo -g -mn                       ;;
2553             -pds=*)         echo $flag                        ;;
2554             -D*|-I*)        echo $flag                        ;;
2555             --gcc|--abi=*)  echo $flag                        ;;
2556             -me)            echo $flag                        ;;
2557         esac
2558     done
2559 }
2560
2561 probe_cc(){
2562     pfx=$1
2563     _cc=$2
2564
2565     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2566     unset _ld_o _ldflags _ld_lib _ld_path
2567     unset _depflags _DEPCMD _DEPFLAGS
2568     _flags_filter=echo
2569
2570     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2571         _type=llvm_gcc
2572         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2573         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2574         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2575         _cflags_speed='-O3'
2576         _cflags_size='-Os'
2577     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2578         _type=gcc
2579         gcc_version=$($_cc --version | head -n1)
2580         gcc_basever=$($_cc -dumpversion)
2581         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2582         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2583         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2584         if ! $_cc -dumpversion | grep -q '^2\.'; then
2585             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2586         fi
2587         _cflags_speed='-O3'
2588         _cflags_size='-Os'
2589     elif $_cc --version 2>/dev/null | grep -q Intel; then
2590         _type=icc
2591         _ident=$($_cc --version | head -n1)
2592         _depflags='-MMD'
2593         _cflags_speed='-O3'
2594         _cflags_size='-Os'
2595         _cflags_noopt='-O1'
2596     elif $_cc -v 2>&1 | grep -q xlc; then
2597         _type=xlc
2598         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2599         _cflags_speed='-O5'
2600         _cflags_size='-O5 -qcompact'
2601     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2602         _type=ccc
2603         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2604         _DEPFLAGS='-M'
2605         _cflags_speed='-fast'
2606         _cflags_size='-O1'
2607         _flags_filter=ccc_flags
2608     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2609         test -d "$sysroot" || die "No valid sysroot specified."
2610         _type=armcc
2611         _ident=$($_cc --vsn | head -n1)
2612         armcc_conf="$PWD/armcc.conf"
2613         $_cc --arm_linux_configure                 \
2614              --arm_linux_config_file="$armcc_conf" \
2615              --configure_sysroot="$sysroot"        \
2616              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2617              die "Error creating armcc configuration file."
2618         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2619         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2620         as_default="${cross_prefix}gcc"
2621         _depflags='-MMD'
2622         _cflags_speed='-O3'
2623         _cflags_size='-Os'
2624     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2625         _type=tms470
2626         _ident=$($_cc -version | head -n1 | tr -s ' ')
2627         _flags='--gcc --abi=eabi -me'
2628         _cc_e='-ppl -fe=$@'
2629         _cc_o='-fe=$@'
2630         _depflags='-ppa -ppd=$(@:.o=.d)'
2631         _cflags_speed='-O3 -mf=5'
2632         _cflags_size='-O3 -mf=2'
2633         _flags_filter=tms470_flags
2634     elif $_cc -v 2>&1 | grep -q clang; then
2635         _type=clang
2636         _ident=$($_cc --version | head -n1)
2637         _depflags='-MMD'
2638         _cflags_speed='-O3'
2639         _cflags_size='-Os'
2640     elif $_cc -V 2>&1 | grep -q Sun; then
2641         _type=suncc
2642         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2643         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2644         _DEPFLAGS='-xM1 -xc99'
2645         _ldflags='-std=c99'
2646         _cflags_speed='-O5'
2647         _cflags_size='-O5 -xspace'
2648         _flags_filter=suncc_flags
2649     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2650         _type=pathscale
2651         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2652         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2653         _cflags_speed='-O2'
2654         _cflags_size='-Os'
2655         _flags_filter='filter_out -Wdisabled-optimization'
2656     elif $_cc -v 2>&1 | grep -q Open64; then
2657         _type=open64
2658         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2659         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2660         _cflags_speed='-O2'
2661         _cflags_size='-Os'
2662         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2663     elif $_cc -V 2>&1 | grep -q Portland; then
2664         _type=pgi
2665         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2666         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2667         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2668         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2669         _cflags_noopt="-O1"
2670         _flags_filter=pgi_flags
2671     elif $_cc 2>&1 | grep -q Microsoft; then
2672         _type=msvc
2673         _ident=$($cc 2>&1 | head -n1)
2674         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2675         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2676         _cflags_speed="-O2"
2677         _cflags_size="-O1"
2678         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2679         if $_cc 2>&1 | grep -q Linker; then
2680             _ld_o='-out $@'
2681         else
2682             _ld_o='-Fe$@'
2683         fi
2684         _cc_o='-Fo $@'
2685         _cc_e='-P -Fi $@'
2686         _flags_filter=msvc_flags
2687         _ld_lib='lib%.a'
2688         _ld_path='-libpath:'
2689         _flags='-nologo'
2690         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2691         if [ $pfx = hostcc ]; then
2692             append _cflags -Dsnprintf=_snprintf
2693         fi
2694         disable stripping
2695     fi
2696
2697     eval ${pfx}_type=\$_type
2698     eval ${pfx}_ident=\$_ident
2699 }
2700
2701 set_ccvars(){
2702     eval ${1}_C=\${_cc_c-\${${1}_C}}
2703     eval ${1}_E=\${_cc_e-\${${1}_E}}
2704     eval ${1}_O=\${_cc_o-\${${1}_O}}
2705
2706     if [ -n "$_depflags" ]; then
2707         eval ${1}_DEPFLAGS=\$_depflags
2708     else
2709         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2710         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2711         eval DEP${1}FLAGS=\$_flags
2712     fi
2713 }
2714
2715 probe_cc cc "$cc"
2716 cflags_filter=$_flags_filter
2717 cflags_speed=$_cflags_speed
2718 cflags_size=$_cflags_size
2719 cflags_noopt=$_cflags_noopt
2720 add_cflags $_flags $_cflags
2721 cc_ldflags=$_ldflags
2722 set_ccvars CC
2723
2724 probe_cc hostcc "$host_cc"
2725 host_cflags_filter=$_flags_filter
2726 add_host_cflags  $_flags $_cflags
2727 set_ccvars HOSTCC
2728
2729 test -n "$cc_type" && enable $cc_type ||
2730     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2731
2732 : ${as_default:=$cc}
2733 : ${dep_cc_default:=$cc}
2734 : ${ld_default:=$cc}
2735 : ${host_ld_default:=$host_cc}
2736 set_default ar as dep_cc ld host_ld
2737
2738 probe_cc as "$as"
2739 asflags_filter=$_flags_filter
2740 add_asflags $_flags $_cflags
2741 set_ccvars AS
2742
2743 probe_cc ld "$ld"
2744 ldflags_filter=$_flags_filter
2745 add_ldflags $_flags $_ldflags
2746 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2747 LD_O=${_ld_o-$LD_O}
2748 LD_LIB=${_ld_lib-$LD_LIB}
2749 LD_PATH=${_ld_path-$LD_PATH}
2750
2751 probe_cc hostld "$host_ld"
2752 host_ldflags_filter=$_flags_filter
2753 add_host_ldflags $_flags $_ldflags
2754 HOSTLD_O=${_ld_o-$HOSTLD_O}
2755
2756 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2757     probe_cc depcc "$dep_cc"
2758     CCDEP=${_DEPCMD:-$DEPCMD}
2759     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2760     DEPCCFLAGS=$_flags
2761 fi
2762
2763 if $ar 2>&1 | grep -q Microsoft; then
2764     arflags="-nologo"
2765     ar_o='-out:$@'
2766 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2767     arflags="rq"
2768     ar_o='$@'
2769 else
2770     arflags="rc"
2771     ar_o='$@'
2772 fi
2773
2774 add_cflags $extra_cflags
2775 add_cxxflags $extra_cxxflags
2776 add_asflags $extra_cflags
2777
2778 if test -n "$sysroot"; then
2779     case "$cc_type" in
2780         gcc|llvm_gcc|clang)
2781             add_cppflags --sysroot="$sysroot"
2782             add_ldflags --sysroot="$sysroot"
2783         ;;
2784         tms470)
2785             add_cppflags -I"$sysinclude"
2786             add_ldflags  --sysroot="$sysroot"
2787         ;;
2788     esac
2789 fi
2790
2791 if test "$cpu" = host; then
2792     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2793
2794     case "$cc_type" in
2795         gcc|llvm_gcc)
2796             check_native(){
2797                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2798                 sed -n "/cc1.*$1=/{
2799                             s/.*$1=\\([^ ]*\\).*/\\1/
2800                             p
2801                             q
2802                         }" $TMPE
2803             }
2804             cpu=$(check_native -march || check_native -mcpu)
2805         ;;
2806     esac
2807
2808     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2809 fi
2810
2811 # Deal with common $arch aliases
2812 case "$arch" in
2813     aarch64|arm64)
2814         arch="aarch64"
2815     ;;
2816     arm*|iPad*)
2817         arch="arm"
2818     ;;
2819     mips*|IP*)
2820         arch="mips"
2821     ;;
2822     parisc*|hppa*)
2823         arch="parisc"
2824     ;;
2825     "Power Macintosh"|ppc*|powerpc*)
2826         arch="ppc"
2827     ;;
2828     s390|s390x)
2829         arch="s390"
2830     ;;
2831     sh4|sh)
2832         arch="sh4"
2833     ;;
2834     sun4u|sparc*)
2835         arch="sparc"
2836     ;;
2837     tilegx|tile-gx)
2838         arch="tilegx"
2839     ;;
2840     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2841         arch="x86"
2842     ;;
2843 esac
2844
2845 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2846 enable $arch
2847
2848 # Add processor-specific flags
2849 if enabled aarch64; then
2850
2851     case $cpu in
2852         armv*)
2853             cpuflags="-march=$cpu"
2854         ;;
2855         *)
2856             cpuflags="-mcpu=$cpu"
2857         ;;
2858     esac
2859
2860 elif enabled alpha; then
2861
2862     cpuflags="-mcpu=$cpu"
2863
2864 elif enabled arm; then
2865
2866     check_arm_arch() {
2867         check_cpp_condition stddef.h \
2868             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2869             $cpuflags
2870     }
2871
2872     probe_arm_arch() {
2873         if   check_arm_arch 4;        then echo armv4;
2874         elif check_arm_arch 4T;       then echo armv4t;
2875         elif check_arm_arch 5;        then echo armv5;
2876         elif check_arm_arch 5E;       then echo armv5e;
2877         elif check_arm_arch 5T;       then echo armv5t;
2878         elif check_arm_arch 5TE;      then echo armv5te;
2879         elif check_arm_arch 5TEJ;     then echo armv5te;
2880         elif check_arm_arch 6;        then echo armv6;
2881         elif check_arm_arch 6J;       then echo armv6j;
2882         elif check_arm_arch 6K;       then echo armv6k;
2883         elif check_arm_arch 6Z;       then echo armv6z;
2884         elif check_arm_arch 6ZK;      then echo armv6zk;
2885         elif check_arm_arch 6T2;      then echo armv6t2;
2886         elif check_arm_arch 7;        then echo armv7;
2887         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2888         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2889         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2890         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2891         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2892         fi
2893     }
2894
2895     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2896
2897     case $cpu in
2898         armv*)
2899             cpuflags="-march=$cpu"
2900             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2901         ;;
2902         *)
2903             cpuflags="-mcpu=$cpu"
2904             case $cpu in
2905                 cortex-a*)                               subarch=armv7a  ;;
2906                 cortex-r*)                               subarch=armv7r  ;;
2907                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2908                 arm11*)                                  subarch=armv6   ;;
2909                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2910                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2911                 *)                             subarch=$(probe_arm_arch) ;;
2912             esac
2913         ;;
2914     esac
2915
2916     case "$subarch" in
2917         armv5t*)    enable fast_clz                ;;
2918         armv[6-8]*) enable fast_clz fast_unaligned ;;
2919     esac
2920
2921 elif enabled avr32; then
2922
2923     case $cpu in
2924         ap7[02]0[0-2])
2925             subarch="avr32_ap"
2926             cpuflags="-mpart=$cpu"
2927         ;;
2928         ap)
2929             subarch="avr32_ap"
2930             cpuflags="-march=$cpu"
2931         ;;
2932         uc3[ab]*)
2933             subarch="avr32_uc"
2934             cpuflags="-mcpu=$cpu"
2935         ;;
2936         uc)
2937             subarch="avr32_uc"
2938             cpuflags="-march=$cpu"
2939         ;;
2940     esac
2941
2942 elif enabled bfin; then
2943
2944     cpuflags="-mcpu=$cpu"
2945
2946 elif enabled mips; then
2947
2948     cpuflags="-march=$cpu"
2949
2950     case $cpu in
2951         24kc)
2952             disable mipsfpu
2953             disable mipsdspr1
2954             disable mipsdspr2
2955         ;;
2956         24kf*)
2957             disable mipsdspr1
2958             disable mipsdspr2
2959         ;;
2960         24kec|34kc|1004kc)
2961             disable mipsfpu
2962             disable mipsdspr2
2963         ;;
2964         24kef*|34kf*|1004kf*)
2965             disable mipsdspr2
2966         ;;
2967         74kc)
2968             disable mipsfpu
2969         ;;
2970     esac
2971
2972 elif enabled ppc; then
2973
2974     case $(tolower $cpu) in
2975         601|ppc601|powerpc601)
2976             cpuflags="-mcpu=601"
2977             disable altivec
2978         ;;
2979         603*|ppc603*|powerpc603*)
2980             cpuflags="-mcpu=603"
2981             disable altivec
2982         ;;
2983         604*|ppc604*|powerpc604*)
2984             cpuflags="-mcpu=604"
2985             disable altivec
2986         ;;
2987         g3|75*|ppc75*|powerpc75*)
2988             cpuflags="-mcpu=750"
2989             disable altivec
2990         ;;
2991         g4|745*|ppc745*|powerpc745*)
2992             cpuflags="-mcpu=7450"
2993         ;;
2994         74*|ppc74*|powerpc74*)
2995             cpuflags="-mcpu=7400"
2996         ;;
2997         g5|970|ppc970|powerpc970)
2998             cpuflags="-mcpu=970"
2999         ;;
3000         power[3-7]*)
3001             cpuflags="-mcpu=$cpu"
3002         ;;
3003         cell)
3004             cpuflags="-mcpu=cell"
3005             enable ldbrx
3006         ;;
3007         e500mc)
3008             cpuflags="-mcpu=e500mc"
3009             disable altivec
3010         ;;
3011         e500v2)
3012             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3013             disable altivec
3014         ;;
3015         e500)
3016             cpuflags="-mcpu=8540 -mhard-float"
3017             disable altivec
3018         ;;
3019     esac
3020
3021 elif enabled sparc; then
3022
3023     case $cpu in
3024         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3025             cpuflags="-mcpu=$cpu"
3026             disable vis
3027         ;;
3028         ultrasparc*|niagara[234])
3029             cpuflags="-mcpu=$cpu"
3030         ;;
3031     esac
3032
3033 elif enabled x86; then
3034
3035     case $cpu in
3036         i[345]86|pentium)
3037             cpuflags="-march=$cpu"
3038             disable mmx
3039         ;;
3040         # targets that do NOT support conditional mov (cmov)
3041         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3042             cpuflags="-march=$cpu"
3043             disable cmov
3044         ;;
3045         # targets that do support conditional mov (cmov)
3046         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3047             cpuflags="-march=$cpu"
3048             enable cmov
3049             enable fast_cmov
3050         ;;
3051         # targets that do support conditional mov but on which it's slow
3052         pentium4|pentium4m|prescott|nocona)
3053             cpuflags="-march=$cpu"
3054             enable cmov
3055             disable fast_cmov
3056         ;;
3057     esac
3058
3059 fi
3060
3061 if [ "$cpu" != generic ]; then
3062     add_cflags  $cpuflags
3063     add_asflags $cpuflags
3064 fi
3065
3066 # compiler sanity check
3067 check_exec <<EOF
3068 int main(void){ return 0; }
3069 EOF
3070 if test "$?" != 0; then
3071     echo "$cc is unable to create an executable file."
3072     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3073         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3074         echo "Only do this if you know what cross compiling means."
3075     fi
3076     die "C compiler test failed."
3077 fi
3078
3079 add_cppflags -D_ISOC99_SOURCE
3080 add_cxxflags -D__STDC_CONSTANT_MACROS
3081 check_cflags -std=c99
3082 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3083 #include <stdlib.h>
3084 EOF
3085 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3086 #include <stdlib.h>
3087 EOF
3088
3089 check_host_cflags -std=c99
3090 check_host_cflags -Wall
3091
3092 check_64bit(){
3093     arch32=$1
3094     arch64=$2
3095     expr=$3
3096     check_code cc "" "int test[2*($expr) - 1]" &&
3097         subarch=$arch64 || subarch=$arch32
3098 }
3099
3100 case "$arch" in
3101     aarch64|alpha|ia64)
3102         spic=$shared
3103     ;;
3104     mips)
3105         check_64bit mips mips64 '_MIPS_SIM > 1'
3106         spic=$shared
3107     ;;
3108     parisc)
3109         check_64bit parisc parisc64 'sizeof(void *) > 4'
3110         spic=$shared
3111     ;;
3112     ppc)
3113         check_64bit ppc ppc64 'sizeof(void *) > 4'
3114         spic=$shared
3115     ;;
3116     sparc)
3117         check_64bit sparc sparc64 'sizeof(void *) > 4'
3118         spic=$shared
3119     ;;
3120     x86)
3121         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3122         if test "$subarch" = "x86_64"; then
3123             spic=$shared
3124         fi
3125     ;;
3126     ppc)
3127         check_cc <<EOF && subarch="ppc64"
3128         int test[(int)sizeof(char*) - 7];
3129 EOF
3130     ;;
3131 esac
3132
3133 enable $subarch
3134 enabled spic && enable pic
3135
3136 # OS specific
3137 case $target_os in
3138     haiku)
3139         prefix_default="/boot/common"
3140         network_extralibs="-lnetwork"
3141         host_libs=
3142         ;;
3143     sunos)
3144         FFSERVERLDFLAGS=""
3145         SHFLAGS='-shared -Wl,-h,$$(@F)'
3146         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3147         network_extralibs="-lsocket -lnsl"
3148         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3149         # When using suncc to build, the Solaris linker will mark
3150         # an executable with each instruction set encountered by
3151         # the Solaris assembler.  As our libraries contain their own
3152         # guards for processor-specific code, instead suppress
3153         # generation of the HWCAPS ELF section on Solaris x86 only.
3154         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3155         nm_default='nm -P -g'
3156         ;;
3157     netbsd)
3158         disable symver
3159         oss_indev_extralibs="-lossaudio"
3160         oss_outdev_extralibs="-lossaudio"
3161         enabled gcc || check_ldflags -Wl,-zmuldefs
3162         ;;
3163     openbsd|bitrig)
3164         disable symver
3165         SHFLAGS='-shared'
3166         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3167         SLIB_INSTALL_LINKS=
3168         oss_indev_extralibs="-lossaudio"
3169         oss_outdev_extralibs="-lossaudio"
3170         ;;
3171     dragonfly)
3172         disable symver
3173         ;;
3174     freebsd)
3175         ;;
3176     bsd/os)
3177         add_extralibs -lpoll -lgnugetopt
3178         strip="strip -d"
3179         ;;
3180     darwin)
3181         gas="gas-preprocessor.pl $cc"
3182         enabled ppc && add_asflags -force_cpusubtype_ALL
3183         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3184         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3185         strip="${strip} -x"
3186         add_ldflags -Wl,-dynamic,-search_paths_first
3187         SLIBSUF=".dylib"
3188         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3189         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3190         FFSERVERLDFLAGS=-Wl,-bind_at_load
3191         objformat="macho"
3192         enabled x86_64 && objformat="macho64"
3193         enabled_any pic shared ||
3194             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3195         ;;
3196     mingw32*)
3197         if test $target_os = "mingw32ce"; then
3198             disable network
3199         else
3200             target_os=mingw32
3201         fi
3202         LIBTARGET=i386
3203         if enabled x86_64; then
3204             LIBTARGET="i386:x86-64"
3205         elif enabled arm; then
3206             LIBTARGET=arm-wince
3207         fi
3208         shlibdir_default="$bindir_default"
3209         SLIBPREF=""
3210         SLIBSUF=".dll"
3211         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3212         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3213         dlltool="${cross_prefix}dlltool"
3214         if check_cmd lib.exe -list; then
3215             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3216             if enabled x86_64; then
3217                 LIBTARGET=x64
3218             fi
3219         elif check_cmd $dlltool --version; then
3220             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3221         fi
3222         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3223         SLIB_INSTALL_LINKS=
3224         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3225         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3226         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3227         objformat="win32"
3228         ranlib=:
3229         enable dos_paths
3230         ;;
3231     win32|win64)
3232         if enabled shared; then
3233             # Link to the import library instead of the normal static library
3234             # for shared libs.
3235             LD_LIB='%.lib'
3236             # Cannot build shared and static libraries at the same time with
3237             # MSVC.
3238             disable static
3239         fi
3240         shlibdir_default="$bindir_default"
3241         SLIBPREF=""
3242         SLIBSUF=".dll"
3243         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3244         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3245         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3246         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3247         SLIB_INSTALL_LINKS=
3248         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3249         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3250         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3251         objformat="win32"
3252         ranlib=:
3253         enable dos_paths
3254         ;;
3255     cygwin*)
3256         target_os=cygwin
3257         shlibdir_default="$bindir_default"
3258         SLIBPREF="cyg"
3259         SLIBSUF=".dll"
3260         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3261         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3262         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3263         SLIB_INSTALL_LINKS=
3264         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3265         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3266         objformat="win32"
3267         enable dos_paths
3268         ;;
3269     *-dos|freedos|opendos)
3270         network_extralibs="-lsocket"
3271         objformat="coff"
3272         enable dos_paths
3273         add_cppflags -U__STRICT_ANSI__
3274         ;;
3275     linux)
3276         enable dv1394
3277         ;;
3278     irix*)
3279         target_os=irix
3280         ranlib="echo ignoring ranlib"
3281         ;;
3282     os/2*)
3283         strip="lxlite -CS"
3284         ln_s="cp -f"
3285         objformat="aout"
3286         add_cppflags -D_GNU_SOURCE
3287         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3288         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3289         FFSERVERLDFLAGS=""
3290         LIBSUF="_s.a"
3291         SLIBPREF=""
3292         SLIBSUF=".dll"
3293         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3294         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3295         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3296             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3297             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3298             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3299             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3300             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3301         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3302             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3303         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3304         enable dos_paths
3305         enable_weak os2threads
3306         ;;
3307     gnu/kfreebsd)
3308         add_cppflags -D_BSD_SOURCE
3309         ;;
3310     gnu)
3311         ;;
3312     qnx)
3313         add_cppflags -D_QNX_SOURCE
3314         network_extralibs="-lsocket"
3315         ;;
3316     symbian)
3317         SLIBSUF=".dll"
3318         enable dos_paths
3319         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3320         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3321         add_ldflags -Wl,--target1-abs,--no-undefined \
3322                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3323                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3324         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3325                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3326                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3327         ;;
3328     osf1)
3329         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3330         FFSERVERLDFLAGS=
3331         ;;
3332     minix)
3333         ;;
3334     plan9)
3335         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3336                      -D_REENTRANT_SOURCE        \
3337                      -D_RESEARCH_SOURCE         \
3338                      -DFD_SETSIZE=96            \
3339                      -DHAVE_SOCK_OPTS
3340         add_compat strtod.o strtod=avpriv_strtod
3341         network_extralibs='-lbsd'
3342         exeobjs=compat/plan9/main.o
3343         disable ffserver
3344         ln_s='ln -s -f'
3345         cp_f='cp'
3346         ;;
3347     none)
3348         ;;
3349     *)
3350         die "Unknown OS '$target_os'."
3351         ;;
3352 esac
3353
3354 # determine libc flavour
3355
3356 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3357 if check_cpp_condition features.h "defined __UCLIBC__"; then
3358     libc_type=uclibc
3359     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3360 elif check_cpp_condition features.h "defined __GLIBC__"; then
3361     libc_type=glibc
3362     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3363 # MinGW headers can be installed on Cygwin, so check for newlib first.
3364 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3365     libc_type=newlib
3366     add_cppflags -U__STRICT_ANSI__
3367 elif check_header _mingw.h; then
3368     libc_type=mingw
3369     check_cpp_condition _mingw.h \
3370         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3371             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3372         die "ERROR: MinGW runtime version must be >= 3.15."
3373     add_cppflags -U__STRICT_ANSI__
3374     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3375             __MINGW64_VERSION_MAJOR < 3"; then
3376         add_compat msvcrt/snprintf.o
3377         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3378     fi
3379 elif check_func_headers stdlib.h _get_doserrno; then
3380     libc_type=msvcrt
3381     add_compat strtod.o strtod=avpriv_strtod
3382     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3383                                  _snprintf=avpriv_snprintf  \
3384                                  vsnprintf=avpriv_vsnprintf
3385 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3386     libc_type=klibc
3387 fi
3388
3389 test -n "$libc_type" && enable $libc_type
3390
3391 # hacks for compiler/libc/os combinations
3392
3393 if enabled_all tms470 glibc; then
3394     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3395     add_cppflags -D__USER_LABEL_PREFIX__=
3396     add_cppflags -D__builtin_memset=memset
3397     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3398     add_cflags   -pds=48    # incompatible redefinition of macro
3399 fi
3400
3401 if enabled_all ccc glibc; then
3402     add_ldflags -Wl,-z,now  # calls to libots crash without this
3403 fi
3404
3405 esc(){
3406     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3407 }
3408
3409 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3410
3411 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3412
3413 set_default $PATHS_LIST
3414 set_default nm
3415
3416 # we need to build at least one lib type
3417 if ! enabled_any static shared; then
3418     cat <<EOF
3419 At least one library type must be built.
3420 Specify --enable-static to build the static libraries or --enable-shared to
3421 build the shared libraries as well. To only build the shared libraries specify
3422 --disable-static in addition to --enable-shared.
3423 EOF
3424     exit 1;
3425 fi
3426
3427 die_license_disabled() {
3428     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3429 }
3430
3431 die_license_disabled_gpl() {
3432     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3433 }
3434
3435 die_license_disabled gpl libcdio
3436 die_license_disabled gpl libutvideo
3437 die_license_disabled gpl libx264
3438 die_license_disabled gpl libxavs
3439 die_license_disabled gpl libxvid
3440 die_license_disabled gpl x11grab
3441
3442 die_license_disabled nonfree libaacplus
3443 die_license_disabled nonfree libfaac
3444 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3445 enabled gpl && die_license_disabled_gpl nonfree openssl
3446
3447 die_license_disabled version3 libopencore_amrnb
3448 die_license_disabled version3 libopencore_amrwb
3449 die_license_disabled version3 libvo_aacenc
3450 die_license_disabled version3 libvo_amrwbenc
3451
3452 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3453
3454 disabled optimizations || check_cflags -fomit-frame-pointer
3455
3456 enable_pic() {
3457     enable pic
3458     add_cppflags -DPIC
3459     add_cflags   -fPIC
3460     add_asflags  -fPIC
3461 }
3462
3463 enabled pic && enable_pic
3464
3465 check_cc <<EOF || die "Symbol mangling check failed."
3466 int ff_extern;
3467 EOF
3468 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3469 extern_prefix=${sym%%ff_extern*}
3470
3471 check_cc <<EOF && enable_weak inline_asm
3472 void foo(void) { __asm__ volatile ("" ::); }
3473 EOF
3474
3475 _restrict=
3476 for restrict_keyword in restrict __restrict__ __restrict; do
3477     check_cc <<EOF && _restrict=$restrict_keyword && break
3478 void foo(char * $restrict_keyword p);
3479 EOF
3480 done
3481
3482 check_cc <<EOF && enable attribute_packed
3483 struct { int x; } __attribute__((packed)) x;
3484 EOF
3485
3486 check_cc <<EOF && enable attribute_may_alias
3487 union { int x; } __attribute__((may_alias)) x;
3488 EOF
3489
3490 check_cc <<EOF || die "endian test failed"
3491 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3492 EOF
3493 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3494
3495 if enabled alpha; then
3496
3497     check_cflags -mieee
3498
3499 elif enabled arm; then
3500
3501     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3502 float func(float a, float b){ return a+b; }
3503 EOF
3504
3505     enabled thumb && check_cflags -mthumb || check_cflags -marm
3506     nogas=die
3507
3508     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3509         enable vfp_args
3510     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3511         case "${cross_prefix:-$cc}" in
3512             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3513             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3514 __asm__ (".eabi_attribute 28, 1");
3515 int main(void) { return 0; }
3516 EOF
3517         esac
3518         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3519     fi
3520
3521     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3522     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3523     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3524     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3525     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3526     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3527
3528     [ $target_os = linux ] ||
3529         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3530             $ARCH_EXT_LIST_ARM
3531
3532     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3533     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3534
3535     enabled_all armv6t2 shared !pic && enable_pic
3536
3537 elif enabled mips; then
3538
3539     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3540     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3541      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3542     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3543      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3544     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3545      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3546     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3547      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3548
3549 elif enabled parisc; then
3550
3551     if enabled gcc; then
3552         case $($cc -dumpversion) in
3553             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3554         esac
3555     fi
3556
3557 elif enabled ppc; then
3558
3559     enable local_aligned_8 local_aligned_16
3560
3561     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3562     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3563     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3564     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3565
3566     # AltiVec flags: The FSF version of GCC differs from the Apple version
3567     if enabled altivec; then
3568         nogas=warn
3569         check_cflags -maltivec -mabi=altivec &&
3570         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3571         check_cflags -faltivec
3572
3573         # check if our compiler supports Motorola AltiVec C API
3574         check_cc <<EOF || disable altivec
3575 $inc_altivec_h
3576 int main(void) {
3577     vector signed int v1 = (vector signed int) { 0 };
3578     vector signed int v2 = (vector signed int) { 1 };
3579     v1 = vec_add(v1, v2);
3580     return 0;
3581 }
3582 EOF
3583
3584         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3585     fi
3586
3587 elif enabled sparc; then
3588
3589     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3590
3591 elif enabled x86; then
3592
3593     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3594
3595     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3596
3597     enable local_aligned_8 local_aligned_16
3598
3599     # check whether EBP is available on x86
3600     # As 'i' is stored on the stack, this program will crash
3601     # if the base pointer is used to access it because the
3602     # base pointer is cleared in the inline assembly code.
3603     check_exec_crash <<EOF && enable ebp_available
3604 volatile int i=0;
3605 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3606 return i;
3607 EOF
3608
3609     # check whether EBX is available on x86
3610     check_inline_asm ebx_available '""::"b"(0)' &&
3611         check_inline_asm ebx_available '"":::"%ebx"'
3612
3613     # check whether xmm clobbers are supported
3614     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3615
3616     # check whether binutils is new enough to compile SSSE3/MMXEXT
3617     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3618     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3619
3620     if ! disabled_any asm mmx yasm; then
3621         if check_cmd $yasmexe --version; then
3622             enabled x86_64 && yasm_extra="-m amd64"
3623             yasm_debug="-g dwarf2"
3624         elif check_cmd nasm -v; then
3625             yasmexe=nasm
3626             yasm_debug="-g -F dwarf"
3627             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3628         fi
3629
3630         YASMFLAGS="-f $objformat $yasm_extra"
3631         enabled pic               && append YASMFLAGS "-DPIC"
3632         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3633         case "$objformat" in
3634             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3635         esac
3636
3637         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3638             die "yasm not found, use --disable-yasm for a crippled build"
3639         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3640         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3641         check_yasm "CPU amdnop" && enable cpunop
3642     fi
3643
3644     case "$cpu" in
3645         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3646             disable fast_clz
3647         ;;
3648     esac
3649
3650 fi
3651
3652 if enabled asm; then
3653     as=${gas:=$as}
3654     check_as <<EOF && enable gnu_as || \
3655         $nogas "GNU assembler not found, install gas-preprocessor"
3656 .macro m n
3657 \n: .int 0
3658 .endm
3659 m x
3660 EOF
3661 fi
3662
3663 check_ldflags -Wl,--as-needed
3664
3665 if check_func dlopen; then
3666     ldl=
3667 elif check_func dlopen -ldl; then
3668     ldl=-ldl
3669 fi
3670
3671 if ! disabled network; then
3672     check_type "sys/types.h sys/socket.h" socklen_t
3673     check_type netdb.h "struct addrinfo"
3674     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3675     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3676     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3677     check_type netinet/in.h "struct sockaddr_in6"
3678     check_type poll.h "struct pollfd"
3679     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3680     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3681     check_type netinet/sctp.h "struct sctp_event_subscribe"
3682     check_func getaddrinfo $network_extralibs
3683     check_func getservbyport $network_extralibs
3684     # Prefer arpa/inet.h over winsock2
3685     if check_header arpa/inet.h ; then
3686         check_func closesocket
3687     elif check_header winsock2.h ; then
3688         check_func_headers winsock2.h closesocket -lws2 &&
3689             network_extralibs="-lws2" ||
3690         { check_func_headers winsock2.h closesocket -lws2_32 &&
3691             network_extralibs="-lws2_32"; }
3692         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3693         check_type ws2tcpip.h socklen_t
3694         check_type ws2tcpip.h "struct addrinfo"
3695         check_type ws2tcpip.h "struct group_source_req"
3696         check_type ws2tcpip.h "struct ip_mreq_source"
3697         check_type ws2tcpip.h "struct ipv6_mreq"
3698         check_type winsock2.h "struct pollfd"
3699         check_type ws2tcpip.h "struct sockaddr_in6"
3700         check_type ws2tcpip.h "struct sockaddr_storage"
3701         check_struct winsock2.h "struct sockaddr" sa_len
3702     else
3703         disable network
3704     fi
3705 fi
3706
3707 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3708 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3709
3710 check_func  access
3711 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3712 check_func  fcntl
3713 check_func  fork
3714 check_func  gethrtime
3715 check_func  getopt
3716 check_func  getrusage
3717 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3718 check_func  gettimeofday
3719 check_func  inet_aton $network_extralibs
3720 check_func  isatty
3721 check_func  localtime_r
3722 check_func  ${malloc_prefix}memalign            && enable memalign
3723 check_func  mkstemp
3724 check_func  mmap
3725 check_func  mprotect
3726 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3727 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3728 check_func  setrlimit
3729 check_func  strerror_r
3730 check_func  sched_getaffinity
3731 check_func  sysconf
3732 check_func  sysctl
3733 check_func  usleep
3734 check_func_headers conio.h kbhit
3735 check_func_headers windows.h PeekNamedPipe
3736 check_func_headers io.h setmode
3737 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3738 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3739 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3740 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3741 check_func_headers windows.h GetProcessAffinityMask
3742 check_func_headers windows.h GetProcessTimes
3743 check_func_headers windows.h GetSystemTimeAsFileTime
3744 check_func_headers windows.h MapViewOfFile
3745 check_func_headers windows.h SetConsoleTextAttribute
3746 check_func_headers windows.h Sleep
3747 check_func_headers windows.h VirtualAlloc
3748 check_func_headers glob.h glob
3749
3750 check_header direct.h
3751 check_header dlfcn.h
3752 check_header dxva.h
3753 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3754 check_header io.h
3755 check_header libcrystalhd/libcrystalhd_if.h
3756 check_header malloc.h
3757 check_header poll.h
3758 check_header sys/mman.h
3759 check_header sys/param.h
3760 check_header sys/resource.h
3761 check_header sys/select.h
3762 check_header sys/time.h
3763 check_header termios.h
3764 check_header unistd.h
3765 check_header vdpau/vdpau.h
3766 check_header vdpau/vdpau_x11.h
3767 check_header windows.h
3768 check_header X11/extensions/XvMClib.h
3769 check_header asm/types.h
3770
3771 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3772 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3773
3774 # check for VDA header
3775 if ! disabled vda && ! enabled ppc; then
3776     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3777         enable vda
3778         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3779     fi
3780 fi
3781
3782 if ! disabled w32threads && ! enabled pthreads; then
3783     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3784 fi
3785
3786 # check for some common methods of building with pthread support
3787 # do this before the optional library checks as some of them require pthreads
3788 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3789     enable pthreads
3790     if check_func pthread_create; then
3791         :
3792     elif check_func pthread_create -pthread; then
3793         add_cflags -pthread
3794         add_extralibs -pthread
3795     elif check_func pthread_create -pthreads; then
3796         add_cflags -pthreads
3797         add_extralibs -pthreads
3798     elif check_func pthread_create -lpthreadGC2; then
3799         add_extralibs -lpthreadGC2
3800     elif ! check_lib pthread.h pthread_create -lpthread; then
3801         disable pthreads
3802     fi
3803 fi
3804
3805 for thread in $THREADS_LIST; do
3806     if enabled $thread; then
3807         test -n "$thread_type" &&
3808             die "ERROR: Only one thread type must be selected." ||
3809             thread_type="$thread"
3810     fi
3811 done
3812
3813 if enabled pthreads; then
3814   check_func pthread_cancel
3815 fi
3816
3817 check_lib math.h sin -lm && LIBM="-lm"
3818 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3819 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3820
3821 atan2f_args=2
3822 ldexpf_args=2
3823 powf_args=2
3824
3825 for func in $MATH_FUNCS; do
3826     eval check_mathfunc $func \${${func}_args:-1}
3827 done
3828
3829 # these are off by default, so fail if requested and not available
3830 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3831 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3832 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3833 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3834 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3835 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3836 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3837 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3838 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3839                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3840                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3841 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3842 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3843 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3844 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"
3845 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3846 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3847 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3848                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3849                         done || die "ERROR: libgsm not found"; }
3850 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3851 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3852 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3853 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3854 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3855 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3856 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3857 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3858                          check_lib openjpeg.h opj_version -lopenjpeg ||
3859                          die "ERROR: libopenjpeg not found"; }
3860 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3861 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3862 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3863 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3864 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3865 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3866 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3867     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3868     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3869 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3870 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3871                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3872                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3873 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3874 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3875 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3876 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3877 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3878 enabled libvpx     && {
3879     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3880                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3881     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 ||
3882                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3883     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3884     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3885 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3886                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3887                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3888 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3889 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3890 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3891                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3892                         die "ERROR: openal not found"; } &&
3893                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3894                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3895 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3896                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3897                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3898                         die "ERROR: openssl not found"; }
3899
3900 if enabled gnutls; then
3901     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3902     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3903 fi
3904
3905 # libdc1394 check
3906 if enabled libdc1394; then
3907     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3908         enable libdc1394_2; } ||
3909     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3910         enable libdc1394_1; } ||
3911     die "ERROR: No version of libdc1394 found "
3912 fi
3913
3914 SDL_CONFIG="${cross_prefix}sdl-config"
3915 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3916     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3917     enable sdl &&
3918     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3919 else
3920   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3921     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3922     sdl_libs=$("${SDL_CONFIG}" --libs)
3923     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3924     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3925     enable sdl &&
3926     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3927   fi
3928 fi
3929 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3930
3931 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3932 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3933 perl --version > /dev/null 2>&1 && enable perl || disable perl
3934 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3935 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3936
3937 check_header linux/fb.h
3938 check_header linux/videodev.h
3939 check_header linux/videodev2.h
3940 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3941
3942 check_header sys/videoio.h
3943
3944 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3945 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3946 # w32api 3.12 had it defined wrong
3947 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3948
3949 check_type "dshow.h" IBaseFilter
3950
3951 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3952 { check_header dev/bktr/ioctl_meteor.h &&
3953   check_header dev/bktr/ioctl_bt848.h; } ||
3954 { check_header machine/ioctl_meteor.h &&
3955   check_header machine/ioctl_bt848.h; } ||
3956 { check_header dev/video/meteor/ioctl_meteor.h &&
3957   check_header dev/video/bktr/ioctl_bt848.h; } ||
3958 check_header dev/ic/bt8xx.h
3959
3960 check_header sndio.h
3961 if check_struct sys/soundcard.h audio_buf_info bytes; then
3962     enable_safe sys/soundcard.h
3963 else
3964     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3965     #include <sys/soundcard.h>
3966     audio_buf_info abc;
3967 EOF
3968 fi
3969 check_header soundcard.h
3970
3971 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3972
3973 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3974     check_func jack_port_get_latency_range -ljack
3975
3976 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3977
3978 if enabled libcdio; then
3979     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3980 fi
3981
3982 enabled x11grab                                           &&
3983 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3984 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3985 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3986
3987 if ! disabled vaapi; then
3988     check_lib va/va.h vaInitialize -lva && {
3989         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3990         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3991     } || disable vaapi
3992 fi
3993
3994 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3995     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3996         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3997 fi
3998
3999 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4000 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4001 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4002
4003 # add some useful compiler flags if supported
4004 check_cflags -Wdeclaration-after-statement
4005 check_cflags -Wall
4006 check_cflags -Wno-parentheses
4007 check_cflags -Wno-switch
4008 check_cflags -Wno-format-zero-length
4009 check_cflags -Wdisabled-optimization
4010 check_cflags -Wpointer-arith
4011 check_cflags -Wredundant-decls
4012 check_cflags -Wno-pointer-sign
4013 check_cflags -Wwrite-strings
4014 check_cflags -Wtype-limits
4015 check_cflags -Wundef
4016 check_cflags -Wmissing-prototypes
4017 check_cflags -Wno-pointer-to-int-cast
4018 check_cflags -Wstrict-prototypes
4019 enabled extra_warnings && check_cflags -Winline
4020
4021 # add some linker flags
4022 check_ldflags -Wl,--warn-common
4023 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4024 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4025
4026 enabled xmm_clobber_test &&
4027     check_ldflags -Wl,--wrap,avcodec_open2              \
4028                   -Wl,--wrap,avcodec_decode_audio4      \
4029                   -Wl,--wrap,avcodec_decode_video2      \
4030                   -Wl,--wrap,avcodec_decode_subtitle2   \
4031                   -Wl,--wrap,avcodec_encode_audio2      \
4032                   -Wl,--wrap,avcodec_encode_video       \
4033                   -Wl,--wrap,avcodec_encode_subtitle    \
4034                   -Wl,--wrap,sws_scale ||
4035     disable xmm_clobber_test
4036
4037 echo "X{};" > $TMPV
4038 if test_ldflags -Wl,--version-script,$TMPV; then
4039     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4040     check_cc <<EOF && enable symver_asm_label
4041 void ff_foo(void) __asm__ ("av_foo@VERSION");
4042 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4043 EOF
4044     check_cc <<EOF && enable symver_gnu_asm
4045 __asm__(".symver ff_foo,av_foo@VERSION");
4046 void ff_foo(void) {}
4047 EOF
4048 fi
4049
4050 if [ -z "$optflags" ]; then
4051     if enabled small; then
4052         optflags=$cflags_size
4053     elif enabled optimizations; then
4054         optflags=$cflags_speed
4055     else
4056         optflags=$cflags_noopt
4057     fi
4058 fi
4059
4060 check_optflags(){
4061     check_cflags "$@"
4062     enabled lto && check_ldflags "$@"
4063 }
4064
4065
4066 if enabled lto; then
4067     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4068     check_cflags  -flto
4069     check_ldflags -flto $cpuflags
4070 fi
4071
4072 check_optflags $optflags
4073 check_optflags -fno-math-errno
4074 check_optflags -fno-signed-zeros
4075
4076 enabled ftrapv && check_cflags -ftrapv
4077
4078 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4079 int x;
4080 EOF
4081
4082
4083 if enabled icc; then
4084     # Just warnings, no remarks
4085     check_cflags -w1
4086     # -wd: Disable following warnings
4087     # 144, 167, 556: -Wno-pointer-sign
4088     # 188: enumerated type mixed with another type
4089     # 1292: attribute "foo" ignored
4090     # 1419: external declaration in primary source file
4091     # 10006: ignoring unknown option -fno-signed-zeros
4092     # 10148: ignoring unknown option -Wno-parentheses
4093     # 10156: ignoring option '-W'; no argument required
4094     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4095     # 11030: Warning unknown option --as-needed
4096     # 10156: ignoring option '-export'; no argument required
4097     check_ldflags -wd10156,11030
4098     # Allow to compile with optimizations
4099     check_ldflags -march=$cpu
4100     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4101     enable ebp_available
4102     if enabled x86_32; then
4103         icc_version=$($cc -dumpversion)
4104         test ${icc_version%%.*} -ge 11 &&
4105             check_cflags -falign-stack=maintain-16-byte ||
4106             disable aligned_stack
4107     fi
4108 elif enabled ccc; then
4109     # disable some annoying warnings
4110     add_cflags -msg_disable bitnotint
4111     add_cflags -msg_disable mixfuncvoid
4112     add_cflags -msg_disable nonstandcast
4113     add_cflags -msg_disable unsupieee
4114 elif enabled gcc; then
4115     check_optflags -fno-tree-vectorize
4116     check_cflags -Werror=implicit-function-declaration
4117     check_cflags -Werror=missing-prototypes
4118     check_cflags -Werror=return-type
4119     check_cflags -Werror=vla
4120 elif enabled llvm_gcc; then
4121     check_cflags -mllvm -stack-alignment=16
4122 elif enabled clang; then
4123     check_cflags -mllvm -stack-alignment=16
4124     check_cflags -Qunused-arguments
4125     check_cflags -Werror=implicit-function-declaration
4126     check_cflags -Werror=missing-prototypes
4127     check_cflags -Werror=return-type
4128 elif enabled armcc; then
4129     # 2523: use of inline assembler is deprecated
4130     add_cflags -W${armcc_opt},--diag_suppress=2523
4131     add_cflags -W${armcc_opt},--diag_suppress=1207
4132     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4133     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4134     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4135     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4136 elif enabled tms470; then
4137     add_cflags -pds=824 -pds=837
4138 elif enabled pathscale; then
4139     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4140 elif enabled msvc; then
4141     enabled x86_32 && disable aligned_stack
4142 fi
4143
4144 case $target_os in
4145     osf1)
4146         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4147     ;;
4148     plan9)
4149         add_cppflags -Dmain=plan9_main
4150     ;;
4151 esac
4152
4153 enabled_any $THREADS_LIST      && enable threads
4154
4155 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4156
4157 check_deps $CONFIG_LIST       \
4158            $CONFIG_EXTRA      \
4159            $HAVE_LIST         \
4160            $ALL_COMPONENTS    \
4161
4162
4163 if test $target_os = "haiku"; then
4164     disable memalign
4165     disable posix_memalign
4166 fi
4167
4168 ! enabled_any memalign posix_memalign aligned_malloc &&
4169     enabled_any $need_memalign && enable memalign_hack
4170
4171 # add_dep lib dep
4172 # -> enable ${lib}_deps_${dep}
4173 # -> add $dep to ${lib}_deps only once
4174 add_dep() {
4175     lib=$1
4176     dep=$2
4177     enabled "${lib}_deps_${dep}" && return 0
4178     enable  "${lib}_deps_${dep}"
4179     prepend "${lib}_deps" $dep
4180 }
4181
4182 # merge deps lib components
4183 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4184 merge_deps() {
4185     lib=$1
4186     shift
4187     for comp in $*; do
4188         enabled $comp || continue
4189         eval "dep=\"\$${comp}_deps\""
4190         for d in $dep; do
4191             add_dep $lib $d
4192         done
4193     done
4194 }
4195
4196 merge_deps libavfilter $FILTER_LIST
4197
4198 echo "install prefix            $prefix"
4199 echo "source path               $source_path"
4200 echo "C compiler                $cc"
4201 echo "ARCH                      $arch ($cpu)"
4202 if test "$build_suffix" != ""; then
4203     echo "build suffix              $build_suffix"
4204 fi
4205 if test "$progs_suffix" != ""; then
4206     echo "progs suffix              $progs_suffix"
4207 fi
4208 if test "$extra_version" != ""; then
4209     echo "version string suffix     $extra_version"
4210 fi
4211 echo "big-endian                ${bigendian-no}"
4212 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4213 if enabled x86; then
4214     echo "${yasmexe}                      ${yasm-no}"
4215     echo "MMX enabled               ${mmx-no}"
4216     echo "MMXEXT enabled            ${mmxext-no}"
4217     echo "3DNow! enabled            ${amd3dnow-no}"
4218     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4219     echo "SSE enabled               ${sse-no}"
4220     echo "SSSE3 enabled             ${ssse3-no}"
4221     echo "AVX enabled               ${avx-no}"
4222     echo "FMA4 enabled              ${fma4-no}"
4223     echo "CMOV enabled              ${cmov-no}"
4224     echo "CMOV is fast              ${fast_cmov-no}"
4225     echo "EBX available             ${ebx_available-no}"
4226     echo "EBP available             ${ebp_available-no}"
4227 fi
4228 if enabled arm; then
4229     echo "ARMv5TE enabled           ${armv5te-no}"
4230     echo "ARMv6 enabled             ${armv6-no}"
4231     echo "ARMv6T2 enabled           ${armv6t2-no}"
4232     echo "VFP enabled               ${vfp-no}"
4233     echo "NEON enabled              ${neon-no}"
4234     echo "THUMB enabled             ${thumb-no}"
4235 fi
4236 if enabled mips; then
4237     echo "MIPS FPU enabled          ${mipsfpu-no}"
4238     echo "MIPS32R2 enabled          ${mips32r2-no}"
4239     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4240     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4241 fi
4242 if enabled ppc; then
4243     echo "AltiVec enabled           ${altivec-no}"
4244     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4245     echo "dcbzl available           ${dcbzl-no}"
4246 fi
4247 if enabled sparc; then
4248     echo "VIS enabled               ${vis-no}"
4249 fi
4250 echo "debug symbols             ${debug-no}"
4251 echo "strip symbols             ${stripping-no}"
4252 echo "optimize for size         ${small-no}"
4253 echo "optimizations             ${optimizations-no}"
4254 echo "static                    ${static-no}"
4255 echo "shared                    ${shared-no}"
4256 echo "postprocessing support    ${postproc-no}"
4257 echo "new filter support        ${avfilter-no}"
4258 echo "network support           ${network-no}"
4259 echo "threading support         ${thread_type-no}"
4260 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4261 echo "SDL support               ${sdl-no}"
4262 echo "libdxva2 enabled          ${dxva2-no}"
4263 echo "libva enabled             ${vaapi-no}"
4264 echo "libvdpau enabled          ${vdpau-no}"
4265 echo "AVISynth enabled          ${avisynth-no}"
4266 echo "frei0r enabled            ${frei0r-no}"
4267 echo "gnutls enabled            ${gnutls-no}"
4268 echo "libaacplus enabled        ${libaacplus-no}"
4269 echo "libass enabled            ${libass-no}"
4270 echo "libcaca enabled           ${libcaca-no}"
4271 echo "libcdio support           ${libcdio-no}"
4272 echo "libcelt enabled           ${libcelt-no}"
4273 echo "libdc1394 support         ${libdc1394-no}"
4274 echo "libfaac enabled           ${libfaac-no}"
4275 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4276 echo "libgsm enabled            ${libgsm-no}"
4277 echo "libiec61883 support       ${libiec61883-no}"
4278 echo "libilbc enabled           ${libilbc-no}"
4279 echo "libmodplug enabled        ${libmodplug-no}"
4280 echo "libmp3lame enabled        ${libmp3lame-no}"
4281 echo "libnut enabled            ${libnut-no}"
4282 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4283 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4284 echo "libopencv support         ${libopencv-no}"
4285 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4286 echo "libopus enabled           ${libopus-no}"
4287 echo "libpulse enabled          ${libpulse-no}"
4288 echo "librtmp enabled           ${librtmp-no}"
4289 echo "libschroedinger enabled   ${libschroedinger-no}"
4290 echo "libsoxr enabled           ${libsoxr-no}"
4291 echo "libspeex enabled          ${libspeex-no}"
4292 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4293 echo "libtheora enabled         ${libtheora-no}"
4294 echo "libtwolame enabled        ${libtwolame-no}"
4295 echo "libutvideo enabled        ${libutvideo-no}"
4296 echo "libv4l2 enabled           ${libv4l2-no}"
4297 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4298 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4299 echo "libvorbis enabled         ${libvorbis-no}"
4300 echo "libvpx enabled            ${libvpx-no}"
4301 echo "libx264 enabled           ${libx264-no}"
4302 echo "libxavs enabled           ${libxavs-no}"
4303 echo "libxvid enabled           ${libxvid-no}"
4304 echo "openal enabled            ${openal-no}"
4305 echo "openssl enabled           ${openssl-no}"
4306 echo "zlib enabled              ${zlib-no}"
4307 echo "bzlib enabled             ${bzlib-no}"
4308 echo "texi2html enabled         ${texi2html-no}"
4309 echo "perl enabled              ${perl-no}"
4310 echo "pod2man enabled           ${pod2man-no}"
4311 echo "makeinfo enabled          ${makeinfo-no}"
4312 test -n "$random_seed" &&
4313     echo "random seed               ${random_seed}"
4314 echo
4315
4316 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4317     echo "Enabled ${type}s:"
4318     eval list=\$$(toupper $type)_LIST
4319     print_enabled '_*' $list | sort | pr -r -3 -t
4320     echo
4321 done
4322
4323 license="LGPL version 2.1 or later"
4324 if enabled nonfree; then
4325     license="nonfree and unredistributable"
4326 elif enabled gplv3; then
4327     license="GPL version 3 or later"
4328 elif enabled lgplv3; then
4329     license="LGPL version 3 or later"
4330 elif enabled gpl; then
4331     license="GPL version 2 or later"
4332 fi
4333
4334 echo "License: $license"
4335
4336 echo "Creating config.mak and config.h..."
4337
4338 test -e Makefile || $ln_s "$source_path/Makefile" .
4339
4340 enabled stripping || strip="echo skipping strip"
4341
4342 config_files="$TMPH config.mak"
4343
4344 cat > config.mak <<EOF
4345 # Automatically generated by configure - do not modify!
4346 ifndef FFMPEG_CONFIG_MAK
4347 FFMPEG_CONFIG_MAK=1
4348 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4349 prefix=$prefix
4350 LIBDIR=\$(DESTDIR)$libdir
4351 SHLIBDIR=\$(DESTDIR)$shlibdir
4352 INCDIR=\$(DESTDIR)$incdir
4353 BINDIR=\$(DESTDIR)$bindir
4354 DATADIR=\$(DESTDIR)$datadir
4355 MANDIR=\$(DESTDIR)$mandir
4356 SRC_PATH=$source_path
4357 ifndef MAIN_MAKEFILE
4358 SRC_PATH:=\$(SRC_PATH:.%=..%)
4359 endif
4360 CC_IDENT=$cc_ident
4361 ARCH=$arch
4362 CC=$cc
4363 CXX=$cxx
4364 AS=$as
4365 LD=$ld
4366 DEPCC=$dep_cc
4367 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4368 DEPAS=$as
4369 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4370 YASM=$yasmexe
4371 DEPYASM=$yasmexe
4372 AR=$ar
4373 ARFLAGS=$arflags
4374 AR_O=$ar_o
4375 RANLIB=$ranlib
4376 CP=cp -p
4377 LN_S=$ln_s
4378 STRIP=$strip
4379 CPPFLAGS=$CPPFLAGS
4380 CFLAGS=$CFLAGS
4381 CXXFLAGS=$CXXFLAGS
4382 ASFLAGS=$ASFLAGS
4383 AS_C=$AS_C
4384 AS_O=$AS_O
4385 CC_C=$CC_C
4386 CC_E=$CC_E
4387 CC_O=$CC_O
4388 CXX_C=$CXX_C
4389 CXX_O=$CXX_O
4390 LD_O=$LD_O
4391 LD_LIB=$LD_LIB
4392 LD_PATH=$LD_PATH
4393 DLLTOOL=$dlltool
4394 LDFLAGS=$LDFLAGS
4395 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4396 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4397 YASMFLAGS=$YASMFLAGS
4398 BUILDSUF=$build_suffix
4399 PROGSSUF=$progs_suffix
4400 FULLNAME=$FULLNAME
4401 LIBPREF=$LIBPREF
4402 LIBSUF=$LIBSUF
4403 LIBNAME=$LIBNAME
4404 SLIBPREF=$SLIBPREF
4405 SLIBSUF=$SLIBSUF
4406 EXESUF=$EXESUF
4407 EXTRA_VERSION=$extra_version
4408 CCDEP=$CCDEP
4409 CXXDEP=$CXXDEP
4410 CCDEP_FLAGS=$CCDEP_FLAGS
4411 ASDEP=$ASDEP
4412 ASDEP_FLAGS=$ASDEP_FLAGS
4413 CC_DEPFLAGS=$CC_DEPFLAGS
4414 AS_DEPFLAGS=$AS_DEPFLAGS
4415 HOSTCC=$host_cc
4416 HOSTLD=$host_ld
4417 HOSTCFLAGS=$host_cflags
4418 HOSTEXESUF=$HOSTEXESUF
4419 HOSTLDFLAGS=$host_ldflags
4420 HOSTLIBS=$host_libs
4421 DEPHOSTCC=$host_cc
4422 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4423 HOSTCCDEP=$HOSTCCDEP
4424 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4425 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4426 HOSTCC_C=$HOSTCC_C
4427 HOSTCC_O=$HOSTCC_O
4428 HOSTLD_O=$HOSTLD_O
4429 TARGET_EXEC=$target_exec
4430 TARGET_PATH=$target_path
4431 LIBS-ffplay=$sdl_libs
4432 CFLAGS-ffplay=$sdl_cflags
4433 ZLIB=$($ldflags_filter -lz)
4434 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4435 EXTRALIBS=$extralibs
4436 COMPAT_OBJS=$compat_objs
4437 EXEOBJS=$exeobjs
4438 INSTALL=$install
4439 LIBTARGET=${LIBTARGET}
4440 SLIBNAME=${SLIBNAME}
4441 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4442 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4443 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4444 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4445 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4446 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4447 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4448 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4449 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4450 NOREDZONE_FLAGS=$noredzone_flags
4451 EOF
4452
4453 get_version(){
4454     lcname=lib${1}
4455     name=$(toupper $lcname)
4456     file=$source_path/$lcname/version.h
4457     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4458     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4459     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4460     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4461     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4462 }
4463
4464 map 'get_version $v' $LIBRARY_LIST
4465
4466 cat > $TMPH <<EOF
4467 /* Automatically generated by configure - do not modify! */
4468 #ifndef FFMPEG_CONFIG_H
4469 #define FFMPEG_CONFIG_H
4470 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4471 #define FFMPEG_LICENSE "$(c_escape $license)"
4472 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4473 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4474 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4475 #define av_restrict $_restrict
4476 #define EXTERN_PREFIX "${extern_prefix}"
4477 #define EXTERN_ASM ${extern_prefix}
4478 #define SLIBSUF "$SLIBSUF"
4479 #define HAVE_MMX2 HAVE_MMXEXT
4480 EOF
4481
4482 test -n "$assert_level" &&
4483     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4484
4485 test -n "$malloc_prefix" &&
4486     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4487
4488 if enabled yasm; then
4489     append config_files $TMPASM
4490     printf '' >$TMPASM
4491 fi
4492
4493 print_config ARCH_   "$config_files" $ARCH_LIST
4494 print_config HAVE_   "$config_files" $HAVE_LIST
4495 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4496                                      $CONFIG_EXTRA      \
4497                                      $ALL_COMPONENTS    \
4498
4499 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4500 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4501
4502 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4503 cp_if_changed $TMPH config.h
4504 touch .config
4505
4506 enabled yasm && cp_if_changed $TMPASM config.asm
4507
4508 cat > $TMPH <<EOF
4509 /* Generated by ffconf */
4510 #ifndef AVUTIL_AVCONFIG_H
4511 #define AVUTIL_AVCONFIG_H
4512 EOF
4513
4514 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4515
4516 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4517
4518 cp_if_changed $TMPH libavutil/avconfig.h
4519
4520 if test -n "$WARNINGS"; then
4521     printf "\n$WARNINGS"
4522     enabled fatal_warnings && exit 1
4523 fi
4524
4525 # build pkg-config files
4526
4527 pkgconfig_generate(){
4528     name=$1
4529     shortname=${name#lib}${build_suffix}
4530     comment=$2
4531     version=$3
4532     libs=$4
4533     requires=$5
4534     enabled ${name#lib} || return 0
4535     mkdir -p $name
4536     cat <<EOF > $name/$name${build_suffix}.pc
4537 prefix=$prefix
4538 exec_prefix=\${prefix}
4539 libdir=$libdir
4540 includedir=$incdir
4541
4542 Name: $name
4543 Description: $comment
4544 Version: $version
4545 Requires: $(enabled shared || echo $requires)
4546 Requires.private: $(enabled shared && echo $requires)
4547 Conflicts:
4548 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4549 Libs.private: $(enabled shared && echo $libs)
4550 Cflags: -I\${includedir}
4551 EOF
4552
4553 mkdir -p doc/examples/pc-uninstalled
4554 includedir=${source_path}
4555 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4556     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4557 prefix=
4558 exec_prefix=
4559 libdir=\${pcfiledir}/../../../$name
4560 includedir=${includedir}
4561
4562 Name: $name
4563 Description: $comment
4564 Version: $version
4565 Requires: $requires
4566 Conflicts:
4567 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4568 Cflags: -I\${includedir}
4569 EOF
4570 }
4571
4572 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4573 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4574 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4575 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4576 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4577 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4578 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4579 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4580
4581 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4582 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4583
4584 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4585 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4586 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4587 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4588 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4589 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4590 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4591 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4592 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4593
4594 fix_ffmpeg_remote(){
4595     git_remote_from=$1
4596     git_remote_to=$2
4597     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4598     if [ "$fixme_remote" != "" ]; then
4599         echolog "
4600 Outdated domain in git config, the official domain for ffmpeg git is since
4601 November 2011, source.ffmpeg.org, both the old and the new point to the same
4602 repository and server. To update it enter the following commands:
4603 "
4604         for remote in $fixme_remote; do
4605             echolog "git remote set-url $remote $git_remote_to"
4606         done
4607     fi
4608 }
4609
4610 if test -f "$source_path/.git/config"; then
4611     remote_from=git.videolan.org
4612     remote_to=source.ffmpeg.org
4613     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4614     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4615 fi