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     iconv
1394     inet_aton
1395     io_h
1396     isatty
1397     jack_port_get_latency_range
1398     kbhit
1399     ldbrx
1400     libdc1394_1
1401     libdc1394_2
1402     local_aligned_16
1403     local_aligned_8
1404     localtime_r
1405     loongson
1406     lzo1x_999_compress
1407     machine_ioctl_bt848_h
1408     machine_ioctl_meteor_h
1409     makeinfo
1410     malloc_h
1411     MapViewOfFile
1412     memalign
1413     mkstemp
1414     mm_empty
1415     mmap
1416     mprotect
1417     msvcrt
1418     nanosleep
1419     openjpeg_1_5_openjpeg_h
1420     PeekNamedPipe
1421     perl
1422     pod2man
1423     poll_h
1424     posix_memalign
1425     pthread_cancel
1426     rdtsc
1427     rsync_contimeout
1428     sched_getaffinity
1429     sdl
1430     sdl_video_size
1431     SetConsoleTextAttribute
1432     setmode
1433     setrlimit
1434     Sleep
1435     sndio_h
1436     socklen_t
1437     soundcard_h
1438     strerror_r
1439     struct_addrinfo
1440     struct_group_source_req
1441     struct_ip_mreq_source
1442     struct_ipv6_mreq
1443     struct_pollfd
1444     struct_rusage_ru_maxrss
1445     struct_sctp_event_subscribe
1446     struct_sockaddr_in6
1447     struct_sockaddr_sa_len
1448     struct_sockaddr_storage
1449     struct_v4l2_frmivalenum_discrete
1450     symver_asm_label
1451     symver_gnu_asm
1452     sysconf
1453     sysctl
1454     sys_mman_h
1455     sys_param_h
1456     sys_resource_h
1457     sys_select_h
1458     sys_soundcard_h
1459     sys_time_h
1460     sys_videoio_h
1461     termios_h
1462     texi2html
1463     threads
1464     unistd_h
1465     usleep
1466     vfp_args
1467     VirtualAlloc
1468     windows_h
1469     winsock2_h
1470     xform_asm
1471     xmm_clobbers
1472 "
1473
1474 # options emitted with CONFIG_ prefix but not available on the command line
1475 CONFIG_EXTRA="
1476     aandcttables
1477     ac3dsp
1478     error_resilience
1479     gcrypt
1480     golomb
1481     gplv3
1482     h264chroma
1483     h264dsp
1484     h264pred
1485     h264qpel
1486     huffman
1487     lgplv3
1488     lpc
1489     mpegaudio
1490     mpegaudiodsp
1491     mpegvideo
1492     mpegvideoenc
1493     nettle
1494     rangecoder
1495     rtpdec
1496     rtpenc_chain
1497     sinewin
1498     videodsp
1499     vp3dsp
1500 "
1501
1502 CMDLINE_SELECT="
1503     $ARCH_EXT_LIST
1504     $CONFIG_LIST
1505     $HAVE_LIST_CMDLINE
1506     $THREADS_LIST
1507     asm
1508     coverage
1509     cross_compile
1510     debug
1511     extra_warnings
1512     logging
1513     lto
1514     optimizations
1515     stripping
1516 "
1517
1518 PATHS_LIST='
1519     bindir
1520     datadir
1521     incdir
1522     libdir
1523     mandir
1524     prefix
1525     shlibdir
1526 '
1527
1528 CMDLINE_SET="
1529     $PATHS_LIST
1530     ar
1531     arch
1532     as
1533     assert_level
1534     build_suffix
1535     cc
1536     cpu
1537     cross_prefix
1538     cxx
1539     dep_cc
1540     extra_version
1541     host_cc
1542     host_cflags
1543     host_ld
1544     host_ldflags
1545     host_libs
1546     host_os
1547     install
1548     ld
1549     logfile
1550     malloc_prefix
1551     nm
1552     optflags
1553     pkg_config
1554     progs_suffix
1555     random_seed
1556     samples
1557     strip
1558     sysinclude
1559     sysroot
1560     target_exec
1561     target_os
1562     target_path
1563     toolchain
1564     valgrind
1565     yasmexe
1566 "
1567
1568 CMDLINE_APPEND="
1569     extra_cflags
1570     extra_cxxflags
1571 "
1572
1573 # code dependency declarations
1574
1575 # architecture extensions
1576
1577 armv5te_deps="arm"
1578 armv6_deps="arm"
1579 armv6t2_deps="arm"
1580 neon_deps="arm"
1581 vfp_deps="arm"
1582 vfpv3_deps="vfp"
1583
1584 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1585
1586 mipsfpu_deps="mips"
1587 mips32r2_deps="mips"
1588 mipsdspr1_deps="mips"
1589 mipsdspr2_deps="mips"
1590
1591 altivec_deps="ppc"
1592 ppc4xx_deps="ppc"
1593
1594 vis_deps="sparc"
1595
1596 x86_64_suggest="cmov fast_cmov"
1597
1598 amd3dnow_deps="mmx"
1599 amd3dnowext_deps="amd3dnow"
1600 mmx_deps="x86"
1601 mmxext_deps="mmx"
1602 sse_deps="mmxext"
1603 sse2_deps="sse"
1604 sse3_deps="sse2"
1605 ssse3_deps="sse3"
1606 sse4_deps="ssse3"
1607 sse42_deps="sse4"
1608 avx_deps="sse42"
1609 fma4_deps="avx"
1610
1611 mmx_external_deps="yasm"
1612 mmx_inline_deps="inline_asm"
1613 mmx_suggest="mmx_external mmx_inline"
1614
1615 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1616     eval dep=\$${ext}_deps
1617     eval ${ext}_external_deps='"${dep}_external"'
1618     eval ${ext}_inline_deps='"${dep}_inline"'
1619     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1620 done
1621
1622 aligned_stack_if_any="ppc x86"
1623 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1624 fast_clz_if_any="alpha avr32 mips ppc x86"
1625 fast_unaligned_if_any="ppc x86"
1626
1627 inline_asm_deps="!tms470"
1628 need_memalign="altivec neon sse"
1629
1630 symver_if_any="symver_asm_label symver_gnu_asm"
1631
1632 log2_deps="!msvcrt"
1633
1634 # subsystems
1635 dct_select="rdft"
1636 mdct_select="fft"
1637 rdft_select="fft"
1638 mpegaudio_select="mpegaudiodsp"
1639 mpegaudiodsp_select="dct"
1640 mpegvideo_select="videodsp"
1641 mpegvideoenc_select="mpegvideo"
1642
1643 # decoders / encoders
1644 aac_decoder_select="mdct sinewin"
1645 aac_encoder_select="mdct sinewin"
1646 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1647 ac3_decoder_select="mdct ac3dsp ac3_parser"
1648 ac3_encoder_select="mdct ac3dsp"
1649 ac3_fixed_encoder_select="mdct ac3dsp"
1650 alac_encoder_select="lpc"
1651 amrnb_decoder_select="lsp"
1652 amrwb_decoder_select="lsp"
1653 amv_encoder_select="aandcttables"
1654 atrac1_decoder_select="mdct sinewin"
1655 atrac3_decoder_select="mdct"
1656 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1657 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1658 cavs_decoder_select="golomb mpegvideo"
1659 comfortnoise_encoder_select="lpc"
1660 cook_decoder_select="mdct sinewin"
1661 cscd_decoder_select="lzo"
1662 cscd_decoder_suggest="zlib"
1663 dca_decoder_select="mdct"
1664 dirac_decoder_select="dwt golomb videodsp"
1665 dnxhd_encoder_select="aandcttables mpegvideoenc"
1666 dxa_decoder_select="zlib"
1667 eac3_decoder_select="ac3_decoder"
1668 eac3_encoder_select="ac3_encoder"
1669 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1670 eatgq_decoder_select="aandcttables"
1671 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1672 exr_decoder_select="zlib"
1673 ffv1_decoder_select="golomb rangecoder"
1674 ffv1_encoder_select="rangecoder"
1675 ffvhuff_encoder_select="huffman"
1676 flac_decoder_select="golomb"
1677 flac_encoder_select="golomb lpc"
1678 flashsv_decoder_select="zlib"
1679 flashsv_encoder_select="zlib"
1680 flashsv2_encoder_select="zlib"
1681 flashsv2_decoder_select="zlib"
1682 flv_decoder_select="h263_decoder"
1683 flv_encoder_select="h263_encoder"
1684 fraps_decoder_select="huffman"
1685 h261_decoder_select="error_resilience mpegvideo"
1686 h261_encoder_select="aandcttables mpegvideoenc"
1687 h263_decoder_select="error_resilience h263_parser mpegvideo"
1688 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1689 h263i_decoder_select="h263_decoder"
1690 h263p_encoder_select="h263_encoder"
1691 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1692 huffyuv_encoder_select="huffman"
1693 iac_decoder_select="fft mdct sinewin"
1694 imc_decoder_select="fft mdct sinewin"
1695 jpegls_decoder_select="golomb"
1696 jpegls_encoder_select="golomb"
1697 ljpeg_encoder_select="aandcttables mpegvideoenc"
1698 loco_decoder_select="golomb"
1699 mdec_decoder_select="error_resilience mpegvideo"
1700 mjpeg_encoder_select="aandcttables mpegvideoenc"
1701 mlp_decoder_select="mlp_parser"
1702 mp1_decoder_select="mpegaudio"
1703 mp1float_decoder_select="mpegaudio"
1704 mp2_decoder_select="mpegaudio"
1705 mp2float_decoder_select="mpegaudio"
1706 mp3_decoder_select="mpegaudio"
1707 mp3adu_decoder_select="mpegaudio"
1708 mp3adufloat_decoder_select="mpegaudio"
1709 mp3float_decoder_select="mpegaudio"
1710 mp3on4_decoder_select="mpegaudio"
1711 mp3on4float_decoder_select="mpegaudio"
1712 mpc7_decoder_select="mpegaudiodsp"
1713 mpc8_decoder_select="mpegaudiodsp"
1714 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1715 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1716 mpeg1video_decoder_select="error_resilience mpegvideo"
1717 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1718 mpeg2video_decoder_select="error_resilience mpegvideo"
1719 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1720 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1721 mpeg4_encoder_select="h263_encoder"
1722 msmpeg4v1_decoder_select="h263_decoder"
1723 msmpeg4v1_encoder_select="h263_encoder"
1724 msmpeg4v2_decoder_select="h263_decoder"
1725 msmpeg4v2_encoder_select="h263_encoder"
1726 msmpeg4v3_decoder_select="h263_decoder"
1727 msmpeg4v3_encoder_select="h263_encoder"
1728 mss2_decoder_select="vc1_decoder"
1729 nellymoser_decoder_select="mdct sinewin"
1730 nellymoser_encoder_select="mdct sinewin"
1731 nuv_decoder_select="lzo"
1732 png_decoder_select="zlib"
1733 png_encoder_select="zlib"
1734 qcelp_decoder_select="lsp"
1735 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1736 ra_144_encoder_select="lpc"
1737 ralf_decoder_select="golomb"
1738 rv10_decoder_select="h263_decoder"
1739 rv10_encoder_select="h263_encoder"
1740 rv20_decoder_select="h263_decoder"
1741 rv20_encoder_select="h263_encoder"
1742 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1743 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1744 shorten_decoder_select="golomb"
1745 sipr_decoder_select="lsp"
1746 snow_decoder_select="dwt rangecoder"
1747 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1748 sonic_decoder_select="golomb"
1749 sonic_encoder_select="golomb"
1750 sonic_ls_encoder_select="golomb"
1751 svq1_decoder_select="error_resilience mpegvideo"
1752 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1753 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1754 svq3_decoder_suggest="zlib"
1755 theora_decoder_select="vp3_decoder"
1756 tiff_decoder_suggest="zlib"
1757 tiff_encoder_suggest="zlib"
1758 truehd_decoder_select="mlp_parser"
1759 tscc_decoder_select="zlib"
1760 twinvq_decoder_select="mdct lsp sinewin"
1761 utvideo_encoder_select="huffman"
1762 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1763 vc1image_decoder_select="vc1_decoder"
1764 vorbis_decoder_select="mdct"
1765 vorbis_encoder_select="mdct"
1766 vp3_decoder_select="vp3dsp videodsp"
1767 vp5_decoder_select="vp3dsp videodsp"
1768 vp6_decoder_select="huffman vp3dsp videodsp"
1769 vp6a_decoder_select="vp6_decoder"
1770 vp6f_decoder_select="vp6_decoder"
1771 vp8_decoder_select="h264pred videodsp"
1772 wmapro_decoder_select="mdct sinewin"
1773 wmav1_decoder_select="mdct sinewin"
1774 wmav1_encoder_select="mdct sinewin"
1775 wmav2_decoder_select="mdct sinewin"
1776 wmav2_encoder_select="mdct sinewin"
1777 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1778 wmv1_decoder_select="h263_decoder"
1779 wmv1_encoder_select="h263_encoder"
1780 wmv2_decoder_select="h263_decoder"
1781 wmv2_encoder_select="h263_encoder"
1782 wmv3_decoder_select="vc1_decoder"
1783 wmv3image_decoder_select="wmv3_decoder"
1784 zerocodec_decoder_select="zlib"
1785 zlib_decoder_select="zlib"
1786 zlib_encoder_select="zlib"
1787 zmbv_decoder_select="zlib"
1788 zmbv_encoder_select="zlib"
1789
1790 # hardware accelerators
1791 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1792 vaapi_deps="va_va_h"
1793 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1794 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1795
1796 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1797 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1798 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1799 h264_dxva2_hwaccel_deps="dxva2api_h"
1800 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1801 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1802 h264_vda_decoder_select="vda h264_parser h264_decoder"
1803 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1804 h264_vda_hwaccel_select="vda h264_decoder"
1805 h264_vdpau_decoder_select="vdpau h264_decoder"
1806 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1807 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1808 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1809 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1810 mpeg2_crystalhd_decoder_select="crystalhd"
1811 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1812 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1813 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1814 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1815 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1816 mpeg4_crystalhd_decoder_select="crystalhd"
1817 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1818 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1819 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1820 msmpeg4_crystalhd_decoder_select="crystalhd"
1821 vc1_crystalhd_decoder_select="crystalhd"
1822 vc1_dxva2_hwaccel_deps="dxva2api_h"
1823 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1824 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1825 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1826 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1827 wmv3_crystalhd_decoder_select="crystalhd"
1828 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1829 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1830 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1831 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1832
1833 # parsers
1834 h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1835 mpeg4video_parser_select="error_resilience mpegvideo"
1836 mpegvideo_parser_select="error_resilience mpegvideo"
1837 vc1_parser_select="error_resilience mpegvideo"
1838
1839 # external libraries
1840 libaacplus_encoder_deps="libaacplus"
1841 libcelt_decoder_deps="libcelt"
1842 libfaac_encoder_deps="libfaac"
1843 libfdk_aac_encoder_deps="libfdk_aac"
1844 libgsm_decoder_deps="libgsm"
1845 libgsm_encoder_deps="libgsm"
1846 libgsm_ms_decoder_deps="libgsm"
1847 libgsm_ms_encoder_deps="libgsm"
1848 libilbc_decoder_deps="libilbc"
1849 libilbc_encoder_deps="libilbc"
1850 libmodplug_demuxer_deps="libmodplug"
1851 libmp3lame_encoder_deps="libmp3lame"
1852 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1853 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1854 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1855 libopenjpeg_decoder_deps="libopenjpeg"
1856 libopenjpeg_encoder_deps="libopenjpeg"
1857 libopus_decoder_deps="libopus"
1858 libopus_encoder_deps="libopus"
1859 libschroedinger_decoder_deps="libschroedinger"
1860 libschroedinger_encoder_deps="libschroedinger"
1861 libspeex_decoder_deps="libspeex"
1862 libspeex_encoder_deps="libspeex"
1863 libstagefright_h264_decoder_deps="libstagefright_h264"
1864 libtheora_encoder_deps="libtheora"
1865 libtwolame_encoder_deps="libtwolame"
1866 libvo_aacenc_encoder_deps="libvo_aacenc"
1867 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1868 libvorbis_decoder_deps="libvorbis"
1869 libvorbis_encoder_deps="libvorbis"
1870 libvpx_vp8_decoder_deps="libvpx"
1871 libvpx_vp8_encoder_deps="libvpx"
1872 libvpx_vp9_decoder_deps="libvpx"
1873 libvpx_vp9_encoder_deps="libvpx"
1874 libx264_encoder_deps="libx264"
1875 libx264rgb_encoder_deps="libx264"
1876 libxavs_encoder_deps="libxavs"
1877 libxvid_encoder_deps="libxvid"
1878 libutvideo_decoder_deps="libutvideo"
1879 libutvideo_encoder_deps="libutvideo"
1880
1881 # demuxers / muxers
1882 ac3_demuxer_select="ac3_parser"
1883 asf_stream_muxer_select="asf_muxer"
1884 avisynth_demuxer_deps="avisynth"
1885 dirac_demuxer_select="dirac_parser"
1886 dts_demuxer_select="dca_parser"
1887 dtshd_demuxer_select="dca_parser"
1888 eac3_demuxer_select="ac3_parser"
1889 f4v_muxer_select="mov_muxer"
1890 flac_demuxer_select="flac_parser"
1891 ipod_muxer_select="mov_muxer"
1892 ismv_muxer_select="mov_muxer"
1893 libnut_demuxer_deps="libnut"
1894 libnut_muxer_deps="libnut"
1895 matroska_audio_muxer_select="matroska_muxer"
1896 matroska_demuxer_suggest="bzlib lzo zlib"
1897 mov_demuxer_suggest="zlib"
1898 mov_muxer_select="rtpenc_chain"
1899 mp3_demuxer_select="mpegaudio_parser"
1900 mp4_muxer_select="mov_muxer"
1901 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1902 mpegtsraw_demuxer_select="mpegts_demuxer"
1903 mxf_d10_muxer_select="mxf_muxer"
1904 ogg_demuxer_select="golomb"
1905 psp_muxer_select="mov_muxer"
1906 rtp_demuxer_select="sdp_demuxer"
1907 rtp_muxer_select="mpegvideo"
1908 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1909 rtsp_demuxer_select="http_protocol rtpdec"
1910 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1911 sap_demuxer_select="sdp_demuxer"
1912 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1913 sdp_demuxer_select="rtpdec"
1914 smoothstreaming_muxer_select="ismv_muxer"
1915 spdif_muxer_select="aac_parser"
1916 tak_demuxer_select="tak_parser"
1917 tg2_muxer_select="mov_muxer"
1918 tgp_muxer_select="mov_muxer"
1919 vobsub_demuxer_select="mpegps_demuxer"
1920 w64_demuxer_deps="wav_demuxer"
1921 w64_muxer_deps="wav_muxer"
1922
1923 # indevs / outdevs
1924 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1925 alsa_outdev_deps="alsa_asoundlib_h"
1926 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1927 caca_outdev_deps="libcaca"
1928 dshow_indev_deps="IBaseFilter"
1929 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1930 dv1394_indev_deps="dv1394 dv_demuxer"
1931 fbdev_indev_deps="linux_fb_h"
1932 iec61883_indev_deps="libiec61883"
1933 jack_indev_deps="jack_jack_h sem_timedwait"
1934 lavfi_indev_deps="avfilter"
1935 libcdio_indev_deps="libcdio"
1936 libdc1394_indev_deps="libdc1394"
1937 libv4l2_indev_deps="libv4l2"
1938 openal_indev_deps="openal"
1939 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1940 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1941 pulse_indev_deps="libpulse"
1942 sdl_outdev_deps="sdl"
1943 sndio_indev_deps="sndio_h"
1944 sndio_outdev_deps="sndio_h"
1945 v4l_indev_deps="linux_videodev_h"
1946 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1947 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1948 vfwcap_indev_extralibs="-lavicap32"
1949 x11grab_indev_deps="x11grab"
1950
1951 # protocols
1952 bluray_protocol_deps="libbluray"
1953 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1954 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1955 ffrtmpcrypt_protocol_select="tcp_protocol"
1956 ffrtmphttp_protocol_deps="!librtmp_protocol"
1957 ffrtmphttp_protocol_select="http_protocol"
1958 gopher_protocol_select="network"
1959 httpproxy_protocol_select="tcp_protocol"
1960 http_protocol_select="tcp_protocol"
1961 https_protocol_select="tls_protocol"
1962 librtmp_protocol_deps="librtmp"
1963 librtmpe_protocol_deps="librtmp"
1964 librtmps_protocol_deps="librtmp"
1965 librtmpt_protocol_deps="librtmp"
1966 librtmpte_protocol_deps="librtmp"
1967 mmsh_protocol_select="http_protocol"
1968 mmst_protocol_select="network"
1969 rtmp_protocol_deps="!librtmp_protocol"
1970 rtmp_protocol_select="tcp_protocol"
1971 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1972 rtmps_protocol_deps="!librtmp_protocol"
1973 rtmps_protocol_select="tls_protocol"
1974 rtmpt_protocol_select="ffrtmphttp_protocol"
1975 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1976 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1977 rtp_protocol_select="udp_protocol"
1978 sctp_protocol_deps="struct_sctp_event_subscribe"
1979 sctp_protocol_select="network"
1980 srtp_protocol_select="rtp_protocol"
1981 tcp_protocol_select="network"
1982 tls_protocol_deps_any="openssl gnutls"
1983 tls_protocol_select="tcp_protocol"
1984 udp_protocol_select="network"
1985
1986 # filters
1987 aconvert_filter_deps="swresample"
1988 amovie_filter_deps="avcodec avformat"
1989 aresample_filter_deps="swresample"
1990 ass_filter_deps="libass"
1991 asyncts_filter_deps="avresample"
1992 atempo_filter_deps="avcodec rdft"
1993 blackframe_filter_deps="gpl"
1994 boxblur_filter_deps="gpl"
1995 colormatrix_filter_deps="gpl"
1996 cropdetect_filter_deps="gpl"
1997 decimate_filter_deps="gpl avcodec"
1998 delogo_filter_deps="gpl"
1999 deshake_filter_deps="avcodec"
2000 drawtext_filter_deps="libfreetype"
2001 ebur128_filter_deps="gpl"
2002 flite_filter_deps="libflite"
2003 frei0r_filter_deps="frei0r dlopen"
2004 frei0r_filter_extralibs='$ldl'
2005 frei0r_src_filter_deps="frei0r dlopen"
2006 frei0r_src_filter_extralibs='$ldl'
2007 geq_filter_deps="gpl"
2008 histeq_filter_deps="gpl"
2009 hqdn3d_filter_deps="gpl"
2010 hue_filter_deps="gpl"
2011 kerndeint_filter_deps="gpl"
2012 movie_filter_deps="avcodec avformat"
2013 mp_filter_deps="gpl avcodec swscale inline_asm"
2014 mptestsrc_filter_deps="gpl"
2015 negate_filter_deps="lut_filter"
2016 noise_filter_deps="gpl"
2017 resample_filter_deps="avresample"
2018 ocv_filter_deps="libopencv"
2019 pan_filter_deps="swresample"
2020 pp_filter_deps="gpl postproc"
2021 removelogo_filter_deps="avcodec avformat swscale"
2022 scale_filter_deps="swscale"
2023 smartblur_filter_deps="gpl swscale"
2024 showspectrum_filter_deps="avcodec rdft"
2025 subtitles_filter_deps="avformat avcodec libass"
2026 super2xsai_filter_deps="gpl"
2027 tinterlace_filter_deps="gpl"
2028 yadif_filter_deps="gpl"
2029 pixfmts_super2xsai_test_deps="super2xsai_filter"
2030 tinterlace_merge_test_deps="tinterlace_filter"
2031 tinterlace_pad_test_deps="tinterlace_filter"
2032
2033 # libraries
2034 avcodec_deps="avutil"
2035 avdevice_deps="avutil avcodec avformat"
2036 avfilter_deps="avutil"
2037 avformat_deps="avutil avcodec"
2038 avresample_deps="avutil"
2039 postproc_deps="avutil gpl"
2040 swscale_deps="avutil"
2041
2042 # programs
2043 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2044 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2045                setpts_filter null_filter anull_filter ffabuffersink_filter"
2046 ffplay_deps="avcodec avformat swscale swresample sdl"
2047 ffplay_select="ffbuffersink_filter rdft crop_filter"
2048 ffprobe_deps="avcodec avformat"
2049 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2050 ffserver_extralibs='$ldl'
2051
2052 # documentation
2053 podpages_deps="perl"
2054 manpages_deps="perl pod2man"
2055 htmlpages_deps="texi2html"
2056 txtpages_deps="makeinfo"
2057 doc_deps_any="manpages htmlpages podpages txtpages"
2058
2059 # default parameters
2060
2061 logfile="config.log"
2062
2063 # installation paths
2064 prefix_default="/usr/local"
2065 bindir_default='${prefix}/bin'
2066 datadir_default='${prefix}/share/ffmpeg'
2067 incdir_default='${prefix}/include'
2068 libdir_default='${prefix}/lib'
2069 mandir_default='${prefix}/share/man'
2070 shlibdir_default="$libdir_default"
2071
2072 # toolchain
2073 ar_default="ar"
2074 cc_default="gcc"
2075 cxx_default="g++"
2076 host_cc_default="gcc"
2077 cp_f="cp -f"
2078 install="install"
2079 ln_s="ln -sf"
2080 nm_default="nm -g"
2081 objformat="elf"
2082 pkg_config_default=pkg-config
2083 ranlib="ranlib"
2084 strip_default="strip"
2085 yasmexe_default="yasm"
2086
2087 nogas=":"
2088
2089 # machine
2090 arch_default=$(uname -m)
2091 cpu="generic"
2092
2093 # OS
2094 target_os_default=$(tolower $(uname -s))
2095 host_os=$target_os_default
2096
2097 # configurable options
2098 enable $PROGRAM_LIST
2099 enable $DOCUMENT_LIST
2100 enable $(filter_out avresample $LIBRARY_LIST)
2101 enable stripping
2102
2103 enable asm
2104 enable debug
2105 enable doc
2106 enable optimizations
2107 enable runtime_cpudetect
2108 enable safe_bitstream_reader
2109 enable static
2110 enable swscale_alpha
2111
2112 # build settings
2113 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2114 FFSERVERLDFLAGS=-Wl,-E
2115 LIBPREF="lib"
2116 LIBSUF=".a"
2117 FULLNAME='$(NAME)$(BUILDSUF)'
2118 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2119 SLIBPREF="lib"
2120 SLIBSUF=".so"
2121 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2122 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2123 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2124 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2125 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2126 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2127
2128 asflags_filter=echo
2129 cflags_filter=echo
2130 ldflags_filter=echo
2131
2132 AS_C='-c'
2133 AS_O='-o $@'
2134 CC_C='-c'
2135 CC_E='-E -o $@'
2136 CC_O='-o $@'
2137 CXX_C='-c'
2138 CXX_O='-o $@'
2139 LD_O='-o $@'
2140 LD_LIB='-l%'
2141 LD_PATH='-L'
2142 HOSTCC_C='-c'
2143 HOSTCC_O='-o $@'
2144 HOSTLD_O='-o $@'
2145
2146 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2147 host_libs='-lm'
2148 host_cflags_filter=echo
2149 host_ldflags_filter=echo
2150
2151 target_path='$(CURDIR)'
2152
2153 # since the object filename is not given with the -MM flag, the compiler
2154 # is only able to print the basename, and we must add the path ourselves
2155 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2156 DEPFLAGS='-MM'
2157
2158 # find source path
2159 if test -f configure; then
2160     source_path=.
2161 else
2162     source_path=$(cd $(dirname "$0"); pwd)
2163     echo "$source_path" | grep -q '[[:blank:]]' &&
2164         die "Out of tree builds are impossible with whitespace in source path."
2165     test -e "$source_path/config.h" &&
2166         die "Out of tree builds are impossible with config.h in source dir."
2167 fi
2168
2169 for v in "$@"; do
2170     r=${v#*=}
2171     l=${v%"$r"}
2172     r=$(sh_quote "$r")
2173     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2174 done
2175
2176 find_things(){
2177     thing=$1
2178     pattern=$2
2179     file=$source_path/$3
2180     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2181 }
2182
2183 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2184 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2185 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2186 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2187 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2188 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2189 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2190 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2191 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2192 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2193 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2194
2195 ALL_COMPONENTS="
2196     $BSF_LIST
2197     $DECODER_LIST
2198     $DEMUXER_LIST
2199     $ENCODER_LIST
2200     $FILTER_LIST
2201     $HWACCEL_LIST
2202     $INDEV_LIST
2203     $MUXER_LIST
2204     $OUTDEV_LIST
2205     $PARSER_LIST
2206     $PROTOCOL_LIST
2207 "
2208
2209 for n in $COMPONENT_LIST; do
2210     v=$(toupper ${n%s})_LIST
2211     eval enable \$$v
2212     eval ${n}_if_any="\$$v"
2213 done
2214
2215 enable $ARCH_EXT_LIST
2216
2217 die_unknown(){
2218     echo "Unknown option \"$1\"."
2219     echo "See $0 --help for available options."
2220     exit 1
2221 }
2222
2223 show_list() {
2224     suffix=_$1
2225     shift
2226     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2227     exit 0
2228 }
2229
2230 rand_list(){
2231     IFS=', '
2232     set -- $*
2233     unset IFS
2234     for thing; do
2235         comp=${thing%:*}
2236         prob=${thing#$comp}
2237         prob=${prob#:}
2238         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2239         echo "prob ${prob:-0.5}"
2240         printf '%s\n' $comp
2241     done
2242 }
2243
2244 do_random(){
2245     action=$1
2246     shift
2247     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2248     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2249 }
2250
2251 for opt do
2252     optval="${opt#*=}"
2253     case "$opt" in
2254         --extra-ldflags=*)
2255             add_ldflags $optval
2256         ;;
2257         --extra-libs=*)
2258             add_extralibs $optval
2259         ;;
2260         --disable-devices)
2261             disable $INDEV_LIST $OUTDEV_LIST
2262         ;;
2263         --enable-debug=*)
2264             debuglevel="$optval"
2265         ;;
2266         --disable-programs)
2267             disable $PROGRAM_LIST
2268         ;;
2269         --disable-everything)
2270             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2271         ;;
2272         --disable-all)
2273             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2274             disable $LIBRARY_LIST $PROGRAM_LIST doc
2275         ;;
2276         --enable-random|--disable-random)
2277             action=${opt%%-random}
2278             do_random ${action#--} $COMPONENT_LIST
2279         ;;
2280         --enable-random=*|--disable-random=*)
2281             action=${opt%%-random=*}
2282             do_random ${action#--} $optval
2283         ;;
2284         --enable-*=*|--disable-*=*)
2285             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2286             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2287             eval list=\$$(toupper $thing)_LIST
2288             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2289             list=$(filter "$name" $list)
2290             [ "$list" = "" ] && warn "Option $opt did not match anything"
2291             $action $list
2292         ;;
2293         --enable-?*|--disable-?*)
2294             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2295             if is_in $option $COMPONENT_LIST; then
2296                 test $action = disable && action=unset
2297                 eval $action \$$(toupper ${option%s})_LIST
2298             elif is_in $option $CMDLINE_SELECT; then
2299                 $action $option
2300             else
2301                 die_unknown $opt
2302             fi
2303         ;;
2304         --list-*)
2305             NAME="${opt#--list-}"
2306             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2307             NAME=${NAME%s}
2308             eval show_list $NAME \$$(toupper $NAME)_LIST
2309         ;;
2310         --help|-h) show_help
2311         ;;
2312         --fatal-warnings) enable fatal_warnings
2313         ;;
2314         *)
2315             optname="${opt%%=*}"
2316             optname="${optname#--}"
2317             optname=$(echo "$optname" | sed 's/-/_/g')
2318             if is_in $optname $CMDLINE_SET; then
2319                 eval $optname='$optval'
2320             elif is_in $optname $CMDLINE_APPEND; then
2321                 append $optname "$optval"
2322             else
2323                 die_unknown $opt
2324             fi
2325         ;;
2326     esac
2327 done
2328
2329 disabled logging && logfile=/dev/null
2330
2331 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2332 set >> $logfile
2333
2334 test -n "$cross_prefix" && enable cross_compile
2335
2336 if enabled cross_compile; then
2337     test -n "$arch" && test -n "$target_os" ||
2338         die "Must specify target arch and OS when cross-compiling"
2339 fi
2340
2341 ar_default="${cross_prefix}${ar_default}"
2342 cc_default="${cross_prefix}${cc_default}"
2343 cxx_default="${cross_prefix}${cxx_default}"
2344 nm_default="${cross_prefix}${nm_default}"
2345 pkg_config_default="${cross_prefix}${pkg_config_default}"
2346 ranlib="${cross_prefix}${ranlib}"
2347 strip_default="${cross_prefix}${strip_default}"
2348
2349 sysinclude_default="${sysroot}/usr/include"
2350
2351 case "$toolchain" in
2352     clang-asan)
2353         cc_default="clang"
2354         add_cflags  -faddress-sanitizer
2355         add_ldflags -faddress-sanitizer
2356     ;;
2357     clang-tsan)
2358         cc_default="clang"
2359         add_cflags  -fthread-sanitizer
2360         add_ldflags -fthread-sanitizer
2361     ;;
2362     msvc)
2363         cc_default="c99wrap cl"
2364         ld_default="c99wrap link"
2365         nm_default="dumpbin -symbols"
2366         ar_default="lib"
2367         target_os_default="win32"
2368     ;;
2369     ?*)
2370         die "Unknown toolchain $toolchain"
2371     ;;
2372 esac
2373
2374 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2375 enabled cross_compile || host_cc_default=$cc
2376 set_default host_cc
2377
2378 if ! $pkg_config --version >/dev/null 2>&1; then
2379     warn "$pkg_config not found, library detection may fail."
2380     pkg_config=false
2381 fi
2382
2383 exesuf() {
2384     case $1 in
2385         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2386     esac
2387 }
2388
2389 EXESUF=$(exesuf $target_os)
2390 HOSTEXESUF=$(exesuf $host_os)
2391
2392 # set temporary file name
2393 : ${TMPDIR:=$TEMPDIR}
2394 : ${TMPDIR:=$TMP}
2395 : ${TMPDIR:=/tmp}
2396
2397 if ! check_cmd mktemp -u XXXXXX; then
2398     # simple replacement for missing mktemp
2399     # NOT SAFE FOR GENERAL USE
2400     mktemp(){
2401         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2402     }
2403 fi
2404
2405 tmpfile(){
2406     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2407         (set -C; exec > $tmp) 2>/dev/null ||
2408         die "Unable to create temporary file in $TMPDIR."
2409     append TMPFILES $tmp
2410     eval $1=$tmp
2411 }
2412
2413 trap 'rm -f -- $TMPFILES' EXIT
2414
2415 tmpfile TMPASM .asm
2416 tmpfile TMPC   .c
2417 tmpfile TMPCPP .cpp
2418 tmpfile TMPE   $EXESUF
2419 tmpfile TMPH   .h
2420 tmpfile TMPO   .o
2421 tmpfile TMPS   .S
2422 tmpfile TMPSH  .sh
2423 tmpfile TMPV   .ver
2424
2425 unset -f mktemp
2426
2427 chmod +x $TMPE
2428
2429 # make sure we can execute files in $TMPDIR
2430 cat > $TMPSH 2>> $logfile <<EOF
2431 #! /bin/sh
2432 EOF
2433 chmod +x $TMPSH >> $logfile 2>&1
2434 if ! $TMPSH >> $logfile 2>&1; then
2435     cat <<EOF
2436 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2437 variable to another directory and make sure that it is not mounted noexec.
2438 EOF
2439     die "Sanity test failed."
2440 fi
2441
2442 ccc_flags(){
2443     for flag; do
2444         case $flag in
2445             -std=c99)           echo -c99                       ;;
2446             -mcpu=*)            echo -arch ${flag#*=}           ;;
2447             -mieee)             echo -ieee                      ;;
2448             -O*|-fast)          echo $flag                      ;;
2449             -fno-math-errno)    echo -assume nomath_errno       ;;
2450             -g)                 echo -g3                        ;;
2451             -Wall)              echo -msg_enable level2         ;;
2452             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2453             -Wl,*)              echo $flag                      ;;
2454             -f*|-W*)                                            ;;
2455             *)                  echo $flag                      ;;
2456         esac
2457    done
2458 }
2459
2460 msvc_flags(){
2461     for flag; do
2462         case $flag in
2463             -fomit-frame-pointer) echo -Oy ;;
2464             -g)                   echo -Z7 ;;
2465             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2466                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2467                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2468                                        -wd4554 \
2469                                        -wd4996 -wd4273 ;;
2470             -std=c99)             ;;
2471             -fno-math-errno)      ;;
2472             -fno-common)          ;;
2473             -fno-signed-zeros)    ;;
2474             -fPIC)                ;;
2475             -lz)                  echo zlib.lib ;;
2476             -lavifil32)           echo vfw32.lib ;;
2477             -lavicap32)           echo vfw32.lib user32.lib ;;
2478             -l*)                  echo ${flag#-l}.lib ;;
2479             *)                    echo $flag ;;
2480         esac
2481     done
2482 }
2483
2484 pgi_flags(){
2485     for flag; do
2486         case $flag in
2487             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2488             -fomit-frame-pointer) echo -Mnoframe ;;
2489             -g)                   echo -gopt ;;
2490             *)                    echo $flag ;;
2491         esac
2492     done
2493 }
2494
2495 suncc_flags(){
2496     for flag; do
2497         case $flag in
2498             -march=*|-mcpu=*)
2499                 case "${flag#*=}" in
2500                     native)                   echo -xtarget=native       ;;
2501                     v9|niagara)               echo -xarch=sparc          ;;
2502                     ultrasparc)               echo -xarch=sparcvis       ;;
2503                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2504                     i586|pentium)             echo -xchip=pentium        ;;
2505                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2506                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2507                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2508                     pentium4*)          echo -xtarget=pentium4           ;;
2509                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2510                     *-sse3)             echo -xarch=sse3                 ;;
2511                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2512                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2513                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2514                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2515                     bdver*)                   echo -xarch=avx            ;;
2516                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2517                     k8|opteron|athlon64|athlon-fx)
2518                                               echo -xarch=sse2a          ;;
2519                     athlon*)                  echo -xarch=pentium_proa   ;;
2520                 esac
2521                 ;;
2522             -std=c99)             echo -xc99              ;;
2523             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2524             -fPIC)                echo -KPIC -xcode=pic32 ;;
2525             -W*,*)                echo $flag              ;;
2526             -f*-*|-W*|-mimpure-text)                      ;;
2527             -shared)              echo -G                 ;;
2528             *)                    echo $flag              ;;
2529         esac
2530     done
2531 }
2532
2533 tms470_flags(){
2534     for flag; do
2535         case $flag in
2536             -march=*|-mcpu=*)
2537                 case "${flag#*=}" in
2538                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2539                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2540                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2541                     armv6*|arm11*)          echo -mv=6   ;;
2542                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2543                                             echo -mv=5e  ;;
2544                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2545                 esac
2546                 ;;
2547             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2548             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2549             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2550             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2551             -msoft-float)   echo --float_support=vfplib       ;;
2552             -O[0-3]|-mf=*)  echo $flag                        ;;
2553             -g)             echo -g -mn                       ;;
2554             -pds=*)         echo $flag                        ;;
2555             -D*|-I*)        echo $flag                        ;;
2556             --gcc|--abi=*)  echo $flag                        ;;
2557             -me)            echo $flag                        ;;
2558         esac
2559     done
2560 }
2561
2562 probe_cc(){
2563     pfx=$1
2564     _cc=$2
2565
2566     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2567     unset _ld_o _ldflags _ld_lib _ld_path
2568     unset _depflags _DEPCMD _DEPFLAGS
2569     _flags_filter=echo
2570
2571     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2572         _type=llvm_gcc
2573         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2574         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2575         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2576         _cflags_speed='-O3'
2577         _cflags_size='-Os'
2578     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2579         _type=gcc
2580         gcc_version=$($_cc --version | head -n1)
2581         gcc_basever=$($_cc -dumpversion)
2582         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2583         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2584         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2585         if ! $_cc -dumpversion | grep -q '^2\.'; then
2586             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2587         fi
2588         _cflags_speed='-O3'
2589         _cflags_size='-Os'
2590     elif $_cc --version 2>/dev/null | grep -q Intel; then
2591         _type=icc
2592         _ident=$($_cc --version | head -n1)
2593         _depflags='-MMD'
2594         _cflags_speed='-O3'
2595         _cflags_size='-Os'
2596         _cflags_noopt='-O1'
2597     elif $_cc -v 2>&1 | grep -q xlc; then
2598         _type=xlc
2599         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2600         _cflags_speed='-O5'
2601         _cflags_size='-O5 -qcompact'
2602     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2603         _type=ccc
2604         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2605         _DEPFLAGS='-M'
2606         _cflags_speed='-fast'
2607         _cflags_size='-O1'
2608         _flags_filter=ccc_flags
2609     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2610         test -d "$sysroot" || die "No valid sysroot specified."
2611         _type=armcc
2612         _ident=$($_cc --vsn | head -n1)
2613         armcc_conf="$PWD/armcc.conf"
2614         $_cc --arm_linux_configure                 \
2615              --arm_linux_config_file="$armcc_conf" \
2616              --configure_sysroot="$sysroot"        \
2617              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2618              die "Error creating armcc configuration file."
2619         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2620         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2621         as_default="${cross_prefix}gcc"
2622         _depflags='-MMD'
2623         _cflags_speed='-O3'
2624         _cflags_size='-Os'
2625     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2626         _type=tms470
2627         _ident=$($_cc -version | head -n1 | tr -s ' ')
2628         _flags='--gcc --abi=eabi -me'
2629         _cc_e='-ppl -fe=$@'
2630         _cc_o='-fe=$@'
2631         _depflags='-ppa -ppd=$(@:.o=.d)'
2632         _cflags_speed='-O3 -mf=5'
2633         _cflags_size='-O3 -mf=2'
2634         _flags_filter=tms470_flags
2635     elif $_cc -v 2>&1 | grep -q clang; then
2636         _type=clang
2637         _ident=$($_cc --version | head -n1)
2638         _depflags='-MMD'
2639         _cflags_speed='-O3'
2640         _cflags_size='-Os'
2641     elif $_cc -V 2>&1 | grep -q Sun; then
2642         _type=suncc
2643         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2644         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2645         _DEPFLAGS='-xM1 -xc99'
2646         _ldflags='-std=c99'
2647         _cflags_speed='-O5'
2648         _cflags_size='-O5 -xspace'
2649         _flags_filter=suncc_flags
2650     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2651         _type=pathscale
2652         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2653         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2654         _cflags_speed='-O2'
2655         _cflags_size='-Os'
2656         _flags_filter='filter_out -Wdisabled-optimization'
2657     elif $_cc -v 2>&1 | grep -q Open64; then
2658         _type=open64
2659         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2660         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2661         _cflags_speed='-O2'
2662         _cflags_size='-Os'
2663         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2664     elif $_cc -V 2>&1 | grep -q Portland; then
2665         _type=pgi
2666         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2667         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2668         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2669         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2670         _cflags_noopt="-O1"
2671         _flags_filter=pgi_flags
2672     elif $_cc 2>&1 | grep -q Microsoft; then
2673         _type=msvc
2674         _ident=$($cc 2>&1 | head -n1)
2675         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2676         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2677         _cflags_speed="-O2"
2678         _cflags_size="-O1"
2679         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2680         if $_cc 2>&1 | grep -q Linker; then
2681             _ld_o='-out $@'
2682         else
2683             _ld_o='-Fe$@'
2684         fi
2685         _cc_o='-Fo $@'
2686         _cc_e='-P -Fi $@'
2687         _flags_filter=msvc_flags
2688         _ld_lib='lib%.a'
2689         _ld_path='-libpath:'
2690         _flags='-nologo'
2691         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2692         if [ $pfx = hostcc ]; then
2693             append _cflags -Dsnprintf=_snprintf
2694         fi
2695         disable stripping
2696     fi
2697
2698     eval ${pfx}_type=\$_type
2699     eval ${pfx}_ident=\$_ident
2700 }
2701
2702 set_ccvars(){
2703     eval ${1}_C=\${_cc_c-\${${1}_C}}
2704     eval ${1}_E=\${_cc_e-\${${1}_E}}
2705     eval ${1}_O=\${_cc_o-\${${1}_O}}
2706
2707     if [ -n "$_depflags" ]; then
2708         eval ${1}_DEPFLAGS=\$_depflags
2709     else
2710         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2711         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2712         eval DEP${1}FLAGS=\$_flags
2713     fi
2714 }
2715
2716 probe_cc cc "$cc"
2717 cflags_filter=$_flags_filter
2718 cflags_speed=$_cflags_speed
2719 cflags_size=$_cflags_size
2720 cflags_noopt=$_cflags_noopt
2721 add_cflags $_flags $_cflags
2722 cc_ldflags=$_ldflags
2723 set_ccvars CC
2724
2725 probe_cc hostcc "$host_cc"
2726 host_cflags_filter=$_flags_filter
2727 add_host_cflags  $_flags $_cflags
2728 set_ccvars HOSTCC
2729
2730 test -n "$cc_type" && enable $cc_type ||
2731     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2732
2733 : ${as_default:=$cc}
2734 : ${dep_cc_default:=$cc}
2735 : ${ld_default:=$cc}
2736 : ${host_ld_default:=$host_cc}
2737 set_default ar as dep_cc ld host_ld
2738
2739 probe_cc as "$as"
2740 asflags_filter=$_flags_filter
2741 add_asflags $_flags $_cflags
2742 set_ccvars AS
2743
2744 probe_cc ld "$ld"
2745 ldflags_filter=$_flags_filter
2746 add_ldflags $_flags $_ldflags
2747 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2748 LD_O=${_ld_o-$LD_O}
2749 LD_LIB=${_ld_lib-$LD_LIB}
2750 LD_PATH=${_ld_path-$LD_PATH}
2751
2752 probe_cc hostld "$host_ld"
2753 host_ldflags_filter=$_flags_filter
2754 add_host_ldflags $_flags $_ldflags
2755 HOSTLD_O=${_ld_o-$HOSTLD_O}
2756
2757 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2758     probe_cc depcc "$dep_cc"
2759     CCDEP=${_DEPCMD:-$DEPCMD}
2760     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2761     DEPCCFLAGS=$_flags
2762 fi
2763
2764 if $ar 2>&1 | grep -q Microsoft; then
2765     arflags="-nologo"
2766     ar_o='-out:$@'
2767 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2768     arflags="rq"
2769     ar_o='$@'
2770 else
2771     arflags="rc"
2772     ar_o='$@'
2773 fi
2774
2775 add_cflags $extra_cflags
2776 add_cxxflags $extra_cxxflags
2777 add_asflags $extra_cflags
2778
2779 if test -n "$sysroot"; then
2780     case "$cc_type" in
2781         gcc|llvm_gcc|clang)
2782             add_cppflags --sysroot="$sysroot"
2783             add_ldflags --sysroot="$sysroot"
2784         ;;
2785         tms470)
2786             add_cppflags -I"$sysinclude"
2787             add_ldflags  --sysroot="$sysroot"
2788         ;;
2789     esac
2790 fi
2791
2792 if test "$cpu" = host; then
2793     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2794
2795     case "$cc_type" in
2796         gcc|llvm_gcc)
2797             check_native(){
2798                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2799                 sed -n "/cc1.*$1=/{
2800                             s/.*$1=\\([^ ]*\\).*/\\1/
2801                             p
2802                             q
2803                         }" $TMPE
2804             }
2805             cpu=$(check_native -march || check_native -mcpu)
2806         ;;
2807     esac
2808
2809     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2810 fi
2811
2812 # Deal with common $arch aliases
2813 case "$arch" in
2814     aarch64|arm64)
2815         arch="aarch64"
2816     ;;
2817     arm*|iPad*)
2818         arch="arm"
2819     ;;
2820     mips*|IP*)
2821         arch="mips"
2822     ;;
2823     parisc*|hppa*)
2824         arch="parisc"
2825     ;;
2826     "Power Macintosh"|ppc*|powerpc*)
2827         arch="ppc"
2828     ;;
2829     s390|s390x)
2830         arch="s390"
2831     ;;
2832     sh4|sh)
2833         arch="sh4"
2834     ;;
2835     sun4u|sparc*)
2836         arch="sparc"
2837     ;;
2838     tilegx|tile-gx)
2839         arch="tilegx"
2840     ;;
2841     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2842         arch="x86"
2843     ;;
2844 esac
2845
2846 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2847 enable $arch
2848
2849 # Add processor-specific flags
2850 if enabled aarch64; then
2851
2852     case $cpu in
2853         armv*)
2854             cpuflags="-march=$cpu"
2855         ;;
2856         *)
2857             cpuflags="-mcpu=$cpu"
2858         ;;
2859     esac
2860
2861 elif enabled alpha; then
2862
2863     cpuflags="-mcpu=$cpu"
2864
2865 elif enabled arm; then
2866
2867     check_arm_arch() {
2868         check_cpp_condition stddef.h \
2869             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2870             $cpuflags
2871     }
2872
2873     probe_arm_arch() {
2874         if   check_arm_arch 4;        then echo armv4;
2875         elif check_arm_arch 4T;       then echo armv4t;
2876         elif check_arm_arch 5;        then echo armv5;
2877         elif check_arm_arch 5E;       then echo armv5e;
2878         elif check_arm_arch 5T;       then echo armv5t;
2879         elif check_arm_arch 5TE;      then echo armv5te;
2880         elif check_arm_arch 5TEJ;     then echo armv5te;
2881         elif check_arm_arch 6;        then echo armv6;
2882         elif check_arm_arch 6J;       then echo armv6j;
2883         elif check_arm_arch 6K;       then echo armv6k;
2884         elif check_arm_arch 6Z;       then echo armv6z;
2885         elif check_arm_arch 6ZK;      then echo armv6zk;
2886         elif check_arm_arch 6T2;      then echo armv6t2;
2887         elif check_arm_arch 7;        then echo armv7;
2888         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2889         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2890         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2891         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2892         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2893         fi
2894     }
2895
2896     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2897
2898     case $cpu in
2899         armv*)
2900             cpuflags="-march=$cpu"
2901             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2902         ;;
2903         *)
2904             cpuflags="-mcpu=$cpu"
2905             case $cpu in
2906                 cortex-a*)                               subarch=armv7a  ;;
2907                 cortex-r*)                               subarch=armv7r  ;;
2908                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2909                 arm11*)                                  subarch=armv6   ;;
2910                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2911                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2912                 *)                             subarch=$(probe_arm_arch) ;;
2913             esac
2914         ;;
2915     esac
2916
2917     case "$subarch" in
2918         armv5t*)    enable fast_clz                ;;
2919         armv[6-8]*) enable fast_clz fast_unaligned ;;
2920     esac
2921
2922 elif enabled avr32; then
2923
2924     case $cpu in
2925         ap7[02]0[0-2])
2926             subarch="avr32_ap"
2927             cpuflags="-mpart=$cpu"
2928         ;;
2929         ap)
2930             subarch="avr32_ap"
2931             cpuflags="-march=$cpu"
2932         ;;
2933         uc3[ab]*)
2934             subarch="avr32_uc"
2935             cpuflags="-mcpu=$cpu"
2936         ;;
2937         uc)
2938             subarch="avr32_uc"
2939             cpuflags="-march=$cpu"
2940         ;;
2941     esac
2942
2943 elif enabled bfin; then
2944
2945     cpuflags="-mcpu=$cpu"
2946
2947 elif enabled mips; then
2948
2949     cpuflags="-march=$cpu"
2950
2951     case $cpu in
2952         24kc)
2953             disable mipsfpu
2954             disable mipsdspr1
2955             disable mipsdspr2
2956         ;;
2957         24kf*)
2958             disable mipsdspr1
2959             disable mipsdspr2
2960         ;;
2961         24kec|34kc|1004kc)
2962             disable mipsfpu
2963             disable mipsdspr2
2964         ;;
2965         24kef*|34kf*|1004kf*)
2966             disable mipsdspr2
2967         ;;
2968         74kc)
2969             disable mipsfpu
2970         ;;
2971     esac
2972
2973 elif enabled ppc; then
2974
2975     case $(tolower $cpu) in
2976         601|ppc601|powerpc601)
2977             cpuflags="-mcpu=601"
2978             disable altivec
2979         ;;
2980         603*|ppc603*|powerpc603*)
2981             cpuflags="-mcpu=603"
2982             disable altivec
2983         ;;
2984         604*|ppc604*|powerpc604*)
2985             cpuflags="-mcpu=604"
2986             disable altivec
2987         ;;
2988         g3|75*|ppc75*|powerpc75*)
2989             cpuflags="-mcpu=750"
2990             disable altivec
2991         ;;
2992         g4|745*|ppc745*|powerpc745*)
2993             cpuflags="-mcpu=7450"
2994         ;;
2995         74*|ppc74*|powerpc74*)
2996             cpuflags="-mcpu=7400"
2997         ;;
2998         g5|970|ppc970|powerpc970)
2999             cpuflags="-mcpu=970"
3000         ;;
3001         power[3-7]*)
3002             cpuflags="-mcpu=$cpu"
3003         ;;
3004         cell)
3005             cpuflags="-mcpu=cell"
3006             enable ldbrx
3007         ;;
3008         e500mc)
3009             cpuflags="-mcpu=e500mc"
3010             disable altivec
3011         ;;
3012         e500v2)
3013             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3014             disable altivec
3015         ;;
3016         e500)
3017             cpuflags="-mcpu=8540 -mhard-float"
3018             disable altivec
3019         ;;
3020     esac
3021
3022 elif enabled sparc; then
3023
3024     case $cpu in
3025         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3026             cpuflags="-mcpu=$cpu"
3027             disable vis
3028         ;;
3029         ultrasparc*|niagara[234])
3030             cpuflags="-mcpu=$cpu"
3031         ;;
3032     esac
3033
3034 elif enabled x86; then
3035
3036     case $cpu in
3037         i[345]86|pentium)
3038             cpuflags="-march=$cpu"
3039             disable mmx
3040         ;;
3041         # targets that do NOT support conditional mov (cmov)
3042         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3043             cpuflags="-march=$cpu"
3044             disable cmov
3045         ;;
3046         # targets that do support conditional mov (cmov)
3047         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3048             cpuflags="-march=$cpu"
3049             enable cmov
3050             enable fast_cmov
3051         ;;
3052         # targets that do support conditional mov but on which it's slow
3053         pentium4|pentium4m|prescott|nocona)
3054             cpuflags="-march=$cpu"
3055             enable cmov
3056             disable fast_cmov
3057         ;;
3058     esac
3059
3060 fi
3061
3062 if [ "$cpu" != generic ]; then
3063     add_cflags  $cpuflags
3064     add_asflags $cpuflags
3065 fi
3066
3067 # compiler sanity check
3068 check_exec <<EOF
3069 int main(void){ return 0; }
3070 EOF
3071 if test "$?" != 0; then
3072     echo "$cc is unable to create an executable file."
3073     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3074         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3075         echo "Only do this if you know what cross compiling means."
3076     fi
3077     die "C compiler test failed."
3078 fi
3079
3080 add_cppflags -D_ISOC99_SOURCE
3081 add_cxxflags -D__STDC_CONSTANT_MACROS
3082 check_cflags -std=c99
3083 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3084 #include <stdlib.h>
3085 EOF
3086 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3087 #include <stdlib.h>
3088 EOF
3089
3090 check_host_cflags -std=c99
3091 check_host_cflags -Wall
3092
3093 check_64bit(){
3094     arch32=$1
3095     arch64=$2
3096     expr=$3
3097     check_code cc "" "int test[2*($expr) - 1]" &&
3098         subarch=$arch64 || subarch=$arch32
3099 }
3100
3101 case "$arch" in
3102     aarch64|alpha|ia64)
3103         spic=$shared
3104     ;;
3105     mips)
3106         check_64bit mips mips64 '_MIPS_SIM > 1'
3107         spic=$shared
3108     ;;
3109     parisc)
3110         check_64bit parisc parisc64 'sizeof(void *) > 4'
3111         spic=$shared
3112     ;;
3113     ppc)
3114         check_64bit ppc ppc64 'sizeof(void *) > 4'
3115         spic=$shared
3116     ;;
3117     sparc)
3118         check_64bit sparc sparc64 'sizeof(void *) > 4'
3119         spic=$shared
3120     ;;
3121     x86)
3122         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3123         if test "$subarch" = "x86_64"; then
3124             spic=$shared
3125         fi
3126     ;;
3127     ppc)
3128         check_cc <<EOF && subarch="ppc64"
3129         int test[(int)sizeof(char*) - 7];
3130 EOF
3131     ;;
3132 esac
3133
3134 enable $subarch
3135 enabled spic && enable pic
3136
3137 # OS specific
3138 case $target_os in
3139     haiku)
3140         prefix_default="/boot/common"
3141         network_extralibs="-lnetwork"
3142         host_libs=
3143         ;;
3144     sunos)
3145         FFSERVERLDFLAGS=""
3146         SHFLAGS='-shared -Wl,-h,$$(@F)'
3147         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3148         network_extralibs="-lsocket -lnsl"
3149         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3150         # When using suncc to build, the Solaris linker will mark
3151         # an executable with each instruction set encountered by
3152         # the Solaris assembler.  As our libraries contain their own
3153         # guards for processor-specific code, instead suppress
3154         # generation of the HWCAPS ELF section on Solaris x86 only.
3155         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3156         nm_default='nm -P -g'
3157         ;;
3158     netbsd)
3159         disable symver
3160         oss_indev_extralibs="-lossaudio"
3161         oss_outdev_extralibs="-lossaudio"
3162         enabled gcc || check_ldflags -Wl,-zmuldefs
3163         ;;
3164     openbsd|bitrig)
3165         disable symver
3166         SHFLAGS='-shared'
3167         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3168         SLIB_INSTALL_LINKS=
3169         oss_indev_extralibs="-lossaudio"
3170         oss_outdev_extralibs="-lossaudio"
3171         ;;
3172     dragonfly)
3173         disable symver
3174         ;;
3175     freebsd)
3176         ;;
3177     bsd/os)
3178         add_extralibs -lpoll -lgnugetopt
3179         strip="strip -d"
3180         ;;
3181     darwin)
3182         gas="gas-preprocessor.pl $cc"
3183         enabled ppc && add_asflags -force_cpusubtype_ALL
3184         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3185         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3186         strip="${strip} -x"
3187         add_ldflags -Wl,-dynamic,-search_paths_first
3188         SLIBSUF=".dylib"
3189         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3190         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3191         FFSERVERLDFLAGS=-Wl,-bind_at_load
3192         objformat="macho"
3193         enabled x86_64 && objformat="macho64"
3194         enabled_any pic shared ||
3195             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3196         ;;
3197     mingw32*)
3198         if test $target_os = "mingw32ce"; then
3199             disable network
3200         else
3201             target_os=mingw32
3202         fi
3203         LIBTARGET=i386
3204         if enabled x86_64; then
3205             LIBTARGET="i386:x86-64"
3206         elif enabled arm; then
3207             LIBTARGET=arm-wince
3208         fi
3209         shlibdir_default="$bindir_default"
3210         SLIBPREF=""
3211         SLIBSUF=".dll"
3212         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3213         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3214         dlltool="${cross_prefix}dlltool"
3215         if check_cmd lib.exe -list; then
3216             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3217             if enabled x86_64; then
3218                 LIBTARGET=x64
3219             fi
3220         elif check_cmd $dlltool --version; then
3221             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3222         fi
3223         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3224         SLIB_INSTALL_LINKS=
3225         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3226         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3227         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3228         objformat="win32"
3229         ranlib=:
3230         enable dos_paths
3231         ;;
3232     win32|win64)
3233         if enabled shared; then
3234             # Link to the import library instead of the normal static library
3235             # for shared libs.
3236             LD_LIB='%.lib'
3237             # Cannot build shared and static libraries at the same time with
3238             # MSVC.
3239             disable static
3240         fi
3241         shlibdir_default="$bindir_default"
3242         SLIBPREF=""
3243         SLIBSUF=".dll"
3244         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3245         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3246         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3247         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3248         SLIB_INSTALL_LINKS=
3249         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3250         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3251         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3252         objformat="win32"
3253         ranlib=:
3254         enable dos_paths
3255         ;;
3256     cygwin*)
3257         target_os=cygwin
3258         shlibdir_default="$bindir_default"
3259         SLIBPREF="cyg"
3260         SLIBSUF=".dll"
3261         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3262         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3263         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3264         SLIB_INSTALL_LINKS=
3265         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3266         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3267         objformat="win32"
3268         enable dos_paths
3269         ;;
3270     *-dos|freedos|opendos)
3271         network_extralibs="-lsocket"
3272         objformat="coff"
3273         enable dos_paths
3274         add_cppflags -U__STRICT_ANSI__
3275         ;;
3276     linux)
3277         enable dv1394
3278         ;;
3279     irix*)
3280         target_os=irix
3281         ranlib="echo ignoring ranlib"
3282         ;;
3283     os/2*)
3284         strip="lxlite -CS"
3285         ln_s="cp -f"
3286         objformat="aout"
3287         add_cppflags -D_GNU_SOURCE
3288         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3289         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3290         FFSERVERLDFLAGS=""
3291         LIBSUF="_s.a"
3292         SLIBPREF=""
3293         SLIBSUF=".dll"
3294         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3295         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3296         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3297             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3298             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3299             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3300             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3301             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3302         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3303             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3304         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3305         enable dos_paths
3306         enable_weak os2threads
3307         ;;
3308     gnu/kfreebsd)
3309         add_cppflags -D_BSD_SOURCE
3310         ;;
3311     gnu)
3312         ;;
3313     qnx)
3314         add_cppflags -D_QNX_SOURCE
3315         network_extralibs="-lsocket"
3316         ;;
3317     symbian)
3318         SLIBSUF=".dll"
3319         enable dos_paths
3320         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3321         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3322         add_ldflags -Wl,--target1-abs,--no-undefined \
3323                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3324                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3325         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3326                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3327                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3328         ;;
3329     osf1)
3330         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3331         FFSERVERLDFLAGS=
3332         ;;
3333     minix)
3334         ;;
3335     plan9)
3336         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3337                      -D_REENTRANT_SOURCE        \
3338                      -D_RESEARCH_SOURCE         \
3339                      -DFD_SETSIZE=96            \
3340                      -DHAVE_SOCK_OPTS
3341         add_compat strtod.o strtod=avpriv_strtod
3342         network_extralibs='-lbsd'
3343         exeobjs=compat/plan9/main.o
3344         disable ffserver
3345         ln_s='ln -s -f'
3346         cp_f='cp'
3347         ;;
3348     none)
3349         ;;
3350     *)
3351         die "Unknown OS '$target_os'."
3352         ;;
3353 esac
3354
3355 # determine libc flavour
3356
3357 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3358 if check_cpp_condition features.h "defined __UCLIBC__"; then
3359     libc_type=uclibc
3360     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3361 elif check_cpp_condition features.h "defined __GLIBC__"; then
3362     libc_type=glibc
3363     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3364 # MinGW headers can be installed on Cygwin, so check for newlib first.
3365 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3366     libc_type=newlib
3367     add_cppflags -U__STRICT_ANSI__
3368 elif check_header _mingw.h; then
3369     libc_type=mingw
3370     check_cpp_condition _mingw.h \
3371         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3372             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3373         die "ERROR: MinGW runtime version must be >= 3.15."
3374     add_cppflags -U__STRICT_ANSI__
3375     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3376             __MINGW64_VERSION_MAJOR < 3"; then
3377         add_compat msvcrt/snprintf.o
3378         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3379     fi
3380 elif check_func_headers stdlib.h _get_doserrno; then
3381     libc_type=msvcrt
3382     add_compat strtod.o strtod=avpriv_strtod
3383     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3384                                  _snprintf=avpriv_snprintf  \
3385                                  vsnprintf=avpriv_vsnprintf
3386 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3387     libc_type=klibc
3388 fi
3389
3390 test -n "$libc_type" && enable $libc_type
3391
3392 # hacks for compiler/libc/os combinations
3393
3394 if enabled_all tms470 glibc; then
3395     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3396     add_cppflags -D__USER_LABEL_PREFIX__=
3397     add_cppflags -D__builtin_memset=memset
3398     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3399     add_cflags   -pds=48    # incompatible redefinition of macro
3400 fi
3401
3402 if enabled_all ccc glibc; then
3403     add_ldflags -Wl,-z,now  # calls to libots crash without this
3404 fi
3405
3406 esc(){
3407     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3408 }
3409
3410 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3411
3412 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3413
3414 set_default $PATHS_LIST
3415 set_default nm
3416
3417 # we need to build at least one lib type
3418 if ! enabled_any static shared; then
3419     cat <<EOF
3420 At least one library type must be built.
3421 Specify --enable-static to build the static libraries or --enable-shared to
3422 build the shared libraries as well. To only build the shared libraries specify
3423 --disable-static in addition to --enable-shared.
3424 EOF
3425     exit 1;
3426 fi
3427
3428 die_license_disabled() {
3429     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3430 }
3431
3432 die_license_disabled_gpl() {
3433     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3434 }
3435
3436 die_license_disabled gpl libcdio
3437 die_license_disabled gpl libutvideo
3438 die_license_disabled gpl libx264
3439 die_license_disabled gpl libxavs
3440 die_license_disabled gpl libxvid
3441 die_license_disabled gpl x11grab
3442
3443 die_license_disabled nonfree libaacplus
3444 die_license_disabled nonfree libfaac
3445 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3446 enabled gpl && die_license_disabled_gpl nonfree openssl
3447
3448 die_license_disabled version3 libopencore_amrnb
3449 die_license_disabled version3 libopencore_amrwb
3450 die_license_disabled version3 libvo_aacenc
3451 die_license_disabled version3 libvo_amrwbenc
3452
3453 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3454
3455 disabled optimizations || check_cflags -fomit-frame-pointer
3456
3457 enable_pic() {
3458     enable pic
3459     add_cppflags -DPIC
3460     add_cflags   -fPIC
3461     add_asflags  -fPIC
3462 }
3463
3464 enabled pic && enable_pic
3465
3466 check_cc <<EOF || die "Symbol mangling check failed."
3467 int ff_extern;
3468 EOF
3469 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3470 extern_prefix=${sym%%ff_extern*}
3471
3472 check_cc <<EOF && enable_weak inline_asm
3473 void foo(void) { __asm__ volatile ("" ::); }
3474 EOF
3475
3476 _restrict=
3477 for restrict_keyword in restrict __restrict__ __restrict; do
3478     check_cc <<EOF && _restrict=$restrict_keyword && break
3479 void foo(char * $restrict_keyword p);
3480 EOF
3481 done
3482
3483 check_cc <<EOF && enable attribute_packed
3484 struct { int x; } __attribute__((packed)) x;
3485 EOF
3486
3487 check_cc <<EOF && enable attribute_may_alias
3488 union { int x; } __attribute__((may_alias)) x;
3489 EOF
3490
3491 check_cc <<EOF || die "endian test failed"
3492 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3493 EOF
3494 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3495
3496 if enabled alpha; then
3497
3498     check_cflags -mieee
3499
3500 elif enabled arm; then
3501
3502     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3503 float func(float a, float b){ return a+b; }
3504 EOF
3505
3506     enabled thumb && check_cflags -mthumb || check_cflags -marm
3507     nogas=die
3508
3509     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3510         enable vfp_args
3511     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3512         case "${cross_prefix:-$cc}" in
3513             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3514             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3515 __asm__ (".eabi_attribute 28, 1");
3516 int main(void) { return 0; }
3517 EOF
3518         esac
3519         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3520     fi
3521
3522     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3523     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3524     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3525     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3526     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3527     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3528
3529     [ $target_os = linux ] ||
3530         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3531             $ARCH_EXT_LIST_ARM
3532
3533     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3534     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3535
3536     enabled_all armv6t2 shared !pic && enable_pic
3537
3538 elif enabled mips; then
3539
3540     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3541     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3542      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3543     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3544      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3545     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3546      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3547     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3548      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3549
3550 elif enabled parisc; then
3551
3552     if enabled gcc; then
3553         case $($cc -dumpversion) in
3554             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3555         esac
3556     fi
3557
3558 elif enabled ppc; then
3559
3560     enable local_aligned_8 local_aligned_16
3561
3562     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3563     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3564     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3565     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3566
3567     # AltiVec flags: The FSF version of GCC differs from the Apple version
3568     if enabled altivec; then
3569         nogas=warn
3570         check_cflags -maltivec -mabi=altivec &&
3571         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3572         check_cflags -faltivec
3573
3574         # check if our compiler supports Motorola AltiVec C API
3575         check_cc <<EOF || disable altivec
3576 $inc_altivec_h
3577 int main(void) {
3578     vector signed int v1 = (vector signed int) { 0 };
3579     vector signed int v2 = (vector signed int) { 1 };
3580     v1 = vec_add(v1, v2);
3581     return 0;
3582 }
3583 EOF
3584
3585         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3586     fi
3587
3588 elif enabled sparc; then
3589
3590     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3591
3592 elif enabled x86; then
3593
3594     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3595
3596     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3597
3598     enable local_aligned_8 local_aligned_16
3599
3600     # check whether EBP is available on x86
3601     # As 'i' is stored on the stack, this program will crash
3602     # if the base pointer is used to access it because the
3603     # base pointer is cleared in the inline assembly code.
3604     check_exec_crash <<EOF && enable ebp_available
3605 volatile int i=0;
3606 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3607 return i;
3608 EOF
3609
3610     # check whether EBX is available on x86
3611     check_inline_asm ebx_available '""::"b"(0)' &&
3612         check_inline_asm ebx_available '"":::"%ebx"'
3613
3614     # check whether xmm clobbers are supported
3615     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3616
3617     # check whether binutils is new enough to compile SSSE3/MMXEXT
3618     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3619     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3620
3621     if ! disabled_any asm mmx yasm; then
3622         if check_cmd $yasmexe --version; then
3623             enabled x86_64 && yasm_extra="-m amd64"
3624             yasm_debug="-g dwarf2"
3625         elif check_cmd nasm -v; then
3626             yasmexe=nasm
3627             yasm_debug="-g -F dwarf"
3628             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3629         fi
3630
3631         YASMFLAGS="-f $objformat $yasm_extra"
3632         enabled pic               && append YASMFLAGS "-DPIC"
3633         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3634         case "$objformat" in
3635             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3636         esac
3637
3638         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3639             die "yasm not found, use --disable-yasm for a crippled build"
3640         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3641         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3642         check_yasm "CPU amdnop" && enable cpunop
3643     fi
3644
3645     case "$cpu" in
3646         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3647             disable fast_clz
3648         ;;
3649     esac
3650
3651 fi
3652
3653 if enabled asm; then
3654     as=${gas:=$as}
3655     check_as <<EOF && enable gnu_as || \
3656         $nogas "GNU assembler not found, install gas-preprocessor"
3657 .macro m n
3658 \n: .int 0
3659 .endm
3660 m x
3661 EOF
3662 fi
3663
3664 check_ldflags -Wl,--as-needed
3665
3666 if check_func dlopen; then
3667     ldl=
3668 elif check_func dlopen -ldl; then
3669     ldl=-ldl
3670 fi
3671
3672 if ! disabled network; then
3673     check_type "sys/types.h sys/socket.h" socklen_t
3674     check_type netdb.h "struct addrinfo"
3675     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3676     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3677     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3678     check_type netinet/in.h "struct sockaddr_in6"
3679     check_type poll.h "struct pollfd"
3680     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3681     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3682     check_type netinet/sctp.h "struct sctp_event_subscribe"
3683     check_func getaddrinfo $network_extralibs
3684     check_func getservbyport $network_extralibs
3685     # Prefer arpa/inet.h over winsock2
3686     if check_header arpa/inet.h ; then
3687         check_func closesocket
3688     elif check_header winsock2.h ; then
3689         check_func_headers winsock2.h closesocket -lws2 &&
3690             network_extralibs="-lws2" ||
3691         { check_func_headers winsock2.h closesocket -lws2_32 &&
3692             network_extralibs="-lws2_32"; }
3693         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3694         check_type ws2tcpip.h socklen_t
3695         check_type ws2tcpip.h "struct addrinfo"
3696         check_type ws2tcpip.h "struct group_source_req"
3697         check_type ws2tcpip.h "struct ip_mreq_source"
3698         check_type ws2tcpip.h "struct ipv6_mreq"
3699         check_type winsock2.h "struct pollfd"
3700         check_type ws2tcpip.h "struct sockaddr_in6"
3701         check_type ws2tcpip.h "struct sockaddr_storage"
3702         check_struct winsock2.h "struct sockaddr" sa_len
3703     else
3704         disable network
3705     fi
3706 fi
3707
3708 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3709 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3710
3711 check_func  access
3712 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3713 check_func  fcntl
3714 check_func  fork
3715 check_func  gethrtime
3716 check_func  getopt
3717 check_func  getrusage
3718 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3719 check_func  gettimeofday
3720 check_func  iconv
3721 check_func  inet_aton $network_extralibs
3722 check_func  isatty
3723 check_func  localtime_r
3724 check_func  ${malloc_prefix}memalign            && enable memalign
3725 check_func  mkstemp
3726 check_func  mmap
3727 check_func  mprotect
3728 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3729 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3730 check_func  setrlimit
3731 check_func  strerror_r
3732 check_func  sched_getaffinity
3733 check_func  sysconf
3734 check_func  sysctl
3735 check_func  usleep
3736 check_func_headers conio.h kbhit
3737 check_func_headers windows.h PeekNamedPipe
3738 check_func_headers io.h setmode
3739 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3740 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3741 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3742 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3743 check_func_headers windows.h GetProcessAffinityMask
3744 check_func_headers windows.h GetProcessTimes
3745 check_func_headers windows.h GetSystemTimeAsFileTime
3746 check_func_headers windows.h MapViewOfFile
3747 check_func_headers windows.h SetConsoleTextAttribute
3748 check_func_headers windows.h Sleep
3749 check_func_headers windows.h VirtualAlloc
3750 check_func_headers glob.h glob
3751
3752 check_header direct.h
3753 check_header dlfcn.h
3754 check_header dxva.h
3755 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3756 check_header io.h
3757 check_header libcrystalhd/libcrystalhd_if.h
3758 check_header malloc.h
3759 check_header poll.h
3760 check_header sys/mman.h
3761 check_header sys/param.h
3762 check_header sys/resource.h
3763 check_header sys/select.h
3764 check_header sys/time.h
3765 check_header termios.h
3766 check_header unistd.h
3767 check_header vdpau/vdpau.h
3768 check_header vdpau/vdpau_x11.h
3769 check_header windows.h
3770 check_header X11/extensions/XvMClib.h
3771 check_header asm/types.h
3772
3773 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3774 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3775
3776 # check for VDA header
3777 if ! disabled vda && ! enabled ppc; then
3778     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3779         enable vda
3780         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3781     fi
3782 fi
3783
3784 if ! disabled w32threads && ! enabled pthreads; then
3785     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3786 fi
3787
3788 # check for some common methods of building with pthread support
3789 # do this before the optional library checks as some of them require pthreads
3790 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3791     enable pthreads
3792     if check_func pthread_create; then
3793         :
3794     elif check_func pthread_create -pthread; then
3795         add_cflags -pthread
3796         add_extralibs -pthread
3797     elif check_func pthread_create -pthreads; then
3798         add_cflags -pthreads
3799         add_extralibs -pthreads
3800     elif check_func pthread_create -lpthreadGC2; then
3801         add_extralibs -lpthreadGC2
3802     elif ! check_lib pthread.h pthread_create -lpthread; then
3803         disable pthreads
3804     fi
3805 fi
3806
3807 for thread in $THREADS_LIST; do
3808     if enabled $thread; then
3809         test -n "$thread_type" &&
3810             die "ERROR: Only one thread type must be selected." ||
3811             thread_type="$thread"
3812     fi
3813 done
3814
3815 if enabled pthreads; then
3816   check_func pthread_cancel
3817 fi
3818
3819 check_lib math.h sin -lm && LIBM="-lm"
3820 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3821 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3822
3823 atan2f_args=2
3824 ldexpf_args=2
3825 powf_args=2
3826
3827 for func in $MATH_FUNCS; do
3828     eval check_mathfunc $func \${${func}_args:-1}
3829 done
3830
3831 # these are off by default, so fail if requested and not available
3832 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3833 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3834 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3835 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3836 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3837 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3838 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3839 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3840 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3841                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3842                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3843 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3844 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3845 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3846 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"
3847 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3848 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3849 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3850                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3851                         done || die "ERROR: libgsm not found"; }
3852 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3853 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3854 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3855 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3856 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3857 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3858 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3859 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3860                          check_lib openjpeg.h opj_version -lopenjpeg ||
3861                          die "ERROR: libopenjpeg not found"; }
3862 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3863 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3864 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3865 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3866 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3867 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3868 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3869     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3870     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3871 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3872 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3873                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3874                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3875 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3876 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3877 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3878 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3879 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3880 enabled libvpx     && {
3881     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3882                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3883     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 ||
3884                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3885     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3886     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3887 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3888                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3889                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3890 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3891 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3892 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3893                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3894                         die "ERROR: openal not found"; } &&
3895                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3896                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3897 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3898                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3899                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3900                         die "ERROR: openssl not found"; }
3901
3902 if enabled gnutls; then
3903     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3904     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3905 fi
3906
3907 # libdc1394 check
3908 if enabled libdc1394; then
3909     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3910         enable libdc1394_2; } ||
3911     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3912         enable libdc1394_1; } ||
3913     die "ERROR: No version of libdc1394 found "
3914 fi
3915
3916 SDL_CONFIG="${cross_prefix}sdl-config"
3917 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3918     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3919     enable sdl &&
3920     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3921 else
3922   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3923     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3924     sdl_libs=$("${SDL_CONFIG}" --libs)
3925     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3926     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3927     enable sdl &&
3928     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3929   fi
3930 fi
3931 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3932
3933 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3934 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3935 perl --version > /dev/null 2>&1 && enable perl || disable perl
3936 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3937 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3938
3939 check_header linux/fb.h
3940 check_header linux/videodev.h
3941 check_header linux/videodev2.h
3942 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3943
3944 check_header sys/videoio.h
3945
3946 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3947 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3948 # w32api 3.12 had it defined wrong
3949 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3950
3951 check_type "dshow.h" IBaseFilter
3952
3953 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3954 { check_header dev/bktr/ioctl_meteor.h &&
3955   check_header dev/bktr/ioctl_bt848.h; } ||
3956 { check_header machine/ioctl_meteor.h &&
3957   check_header machine/ioctl_bt848.h; } ||
3958 { check_header dev/video/meteor/ioctl_meteor.h &&
3959   check_header dev/video/bktr/ioctl_bt848.h; } ||
3960 check_header dev/ic/bt8xx.h
3961
3962 check_header sndio.h
3963 if check_struct sys/soundcard.h audio_buf_info bytes; then
3964     enable_safe sys/soundcard.h
3965 else
3966     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3967     #include <sys/soundcard.h>
3968     audio_buf_info abc;
3969 EOF
3970 fi
3971 check_header soundcard.h
3972
3973 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3974
3975 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3976     check_func jack_port_get_latency_range -ljack
3977
3978 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3979
3980 if enabled libcdio; then
3981     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
3982 fi
3983
3984 enabled x11grab                                           &&
3985 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3986 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3987 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3988
3989 if ! disabled vaapi; then
3990     check_lib va/va.h vaInitialize -lva && {
3991         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3992         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3993     } || disable vaapi
3994 fi
3995
3996 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3997     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3998         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3999 fi
4000
4001 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4002 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4003 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"
4004
4005 # add some useful compiler flags if supported
4006 check_cflags -Wdeclaration-after-statement
4007 check_cflags -Wall
4008 check_cflags -Wno-parentheses
4009 check_cflags -Wno-switch
4010 check_cflags -Wno-format-zero-length
4011 check_cflags -Wdisabled-optimization
4012 check_cflags -Wpointer-arith
4013 check_cflags -Wredundant-decls
4014 check_cflags -Wno-pointer-sign
4015 check_cflags -Wwrite-strings
4016 check_cflags -Wtype-limits
4017 check_cflags -Wundef
4018 check_cflags -Wmissing-prototypes
4019 check_cflags -Wno-pointer-to-int-cast
4020 check_cflags -Wstrict-prototypes
4021 enabled extra_warnings && check_cflags -Winline
4022
4023 # add some linker flags
4024 check_ldflags -Wl,--warn-common
4025 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4026 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4027
4028 enabled xmm_clobber_test &&
4029     check_ldflags -Wl,--wrap,avcodec_open2              \
4030                   -Wl,--wrap,avcodec_decode_audio4      \
4031                   -Wl,--wrap,avcodec_decode_video2      \
4032                   -Wl,--wrap,avcodec_decode_subtitle2   \
4033                   -Wl,--wrap,avcodec_encode_audio2      \
4034                   -Wl,--wrap,avcodec_encode_video       \
4035                   -Wl,--wrap,avcodec_encode_subtitle    \
4036                   -Wl,--wrap,sws_scale ||
4037     disable xmm_clobber_test
4038
4039 echo "X{};" > $TMPV
4040 if test_ldflags -Wl,--version-script,$TMPV; then
4041     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4042     check_cc <<EOF && enable symver_asm_label
4043 void ff_foo(void) __asm__ ("av_foo@VERSION");
4044 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4045 EOF
4046     check_cc <<EOF && enable symver_gnu_asm
4047 __asm__(".symver ff_foo,av_foo@VERSION");
4048 void ff_foo(void) {}
4049 EOF
4050 fi
4051
4052 if [ -z "$optflags" ]; then
4053     if enabled small; then
4054         optflags=$cflags_size
4055     elif enabled optimizations; then
4056         optflags=$cflags_speed
4057     else
4058         optflags=$cflags_noopt
4059     fi
4060 fi
4061
4062 check_optflags(){
4063     check_cflags "$@"
4064     enabled lto && check_ldflags "$@"
4065 }
4066
4067
4068 if enabled lto; then
4069     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4070     check_cflags  -flto
4071     check_ldflags -flto $cpuflags
4072 fi
4073
4074 check_optflags $optflags
4075 check_optflags -fno-math-errno
4076 check_optflags -fno-signed-zeros
4077
4078 enabled ftrapv && check_cflags -ftrapv
4079
4080 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4081 int x;
4082 EOF
4083
4084
4085 if enabled icc; then
4086     # Just warnings, no remarks
4087     check_cflags -w1
4088     # -wd: Disable following warnings
4089     # 144, 167, 556: -Wno-pointer-sign
4090     # 188: enumerated type mixed with another type
4091     # 1292: attribute "foo" ignored
4092     # 1419: external declaration in primary source file
4093     # 10006: ignoring unknown option -fno-signed-zeros
4094     # 10148: ignoring unknown option -Wno-parentheses
4095     # 10156: ignoring option '-W'; no argument required
4096     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4097     # 11030: Warning unknown option --as-needed
4098     # 10156: ignoring option '-export'; no argument required
4099     check_ldflags -wd10156,11030
4100     # Allow to compile with optimizations
4101     check_ldflags -march=$cpu
4102     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4103     enable ebp_available
4104     if enabled x86_32; then
4105         icc_version=$($cc -dumpversion)
4106         test ${icc_version%%.*} -ge 11 &&
4107             check_cflags -falign-stack=maintain-16-byte ||
4108             disable aligned_stack
4109     fi
4110 elif enabled ccc; then
4111     # disable some annoying warnings
4112     add_cflags -msg_disable bitnotint
4113     add_cflags -msg_disable mixfuncvoid
4114     add_cflags -msg_disable nonstandcast
4115     add_cflags -msg_disable unsupieee
4116 elif enabled gcc; then
4117     check_optflags -fno-tree-vectorize
4118     check_cflags -Werror=implicit-function-declaration
4119     check_cflags -Werror=missing-prototypes
4120     check_cflags -Werror=return-type
4121     check_cflags -Werror=vla
4122 elif enabled llvm_gcc; then
4123     check_cflags -mllvm -stack-alignment=16
4124 elif enabled clang; then
4125     check_cflags -mllvm -stack-alignment=16
4126     check_cflags -Qunused-arguments
4127     check_cflags -Werror=implicit-function-declaration
4128     check_cflags -Werror=missing-prototypes
4129     check_cflags -Werror=return-type
4130 elif enabled armcc; then
4131     # 2523: use of inline assembler is deprecated
4132     add_cflags -W${armcc_opt},--diag_suppress=2523
4133     add_cflags -W${armcc_opt},--diag_suppress=1207
4134     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4135     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4136     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4137     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4138 elif enabled tms470; then
4139     add_cflags -pds=824 -pds=837
4140 elif enabled pathscale; then
4141     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4142 elif enabled msvc; then
4143     enabled x86_32 && disable aligned_stack
4144 fi
4145
4146 case $target_os in
4147     osf1)
4148         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4149     ;;
4150     plan9)
4151         add_cppflags -Dmain=plan9_main
4152     ;;
4153 esac
4154
4155 enabled_any $THREADS_LIST      && enable threads
4156
4157 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4158
4159 check_deps $CONFIG_LIST       \
4160            $CONFIG_EXTRA      \
4161            $HAVE_LIST         \
4162            $ALL_COMPONENTS    \
4163
4164
4165 if test $target_os = "haiku"; then
4166     disable memalign
4167     disable posix_memalign
4168 fi
4169
4170 ! enabled_any memalign posix_memalign aligned_malloc &&
4171     enabled_any $need_memalign && enable memalign_hack
4172
4173 # add_dep lib dep
4174 # -> enable ${lib}_deps_${dep}
4175 # -> add $dep to ${lib}_deps only once
4176 add_dep() {
4177     lib=$1
4178     dep=$2
4179     enabled "${lib}_deps_${dep}" && return 0
4180     enable  "${lib}_deps_${dep}"
4181     prepend "${lib}_deps" $dep
4182 }
4183
4184 # merge deps lib components
4185 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4186 merge_deps() {
4187     lib=$1
4188     shift
4189     for comp in $*; do
4190         enabled $comp || continue
4191         eval "dep=\"\$${comp}_deps\""
4192         for d in $dep; do
4193             add_dep $lib $d
4194         done
4195     done
4196 }
4197
4198 merge_deps libavfilter $FILTER_LIST
4199
4200 echo "install prefix            $prefix"
4201 echo "source path               $source_path"
4202 echo "C compiler                $cc"
4203 echo "ARCH                      $arch ($cpu)"
4204 if test "$build_suffix" != ""; then
4205     echo "build suffix              $build_suffix"
4206 fi
4207 if test "$progs_suffix" != ""; then
4208     echo "progs suffix              $progs_suffix"
4209 fi
4210 if test "$extra_version" != ""; then
4211     echo "version string suffix     $extra_version"
4212 fi
4213 echo "big-endian                ${bigendian-no}"
4214 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4215 if enabled x86; then
4216     echo "${yasmexe}                      ${yasm-no}"
4217     echo "MMX enabled               ${mmx-no}"
4218     echo "MMXEXT enabled            ${mmxext-no}"
4219     echo "3DNow! enabled            ${amd3dnow-no}"
4220     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4221     echo "SSE enabled               ${sse-no}"
4222     echo "SSSE3 enabled             ${ssse3-no}"
4223     echo "AVX enabled               ${avx-no}"
4224     echo "FMA4 enabled              ${fma4-no}"
4225     echo "CMOV enabled              ${cmov-no}"
4226     echo "CMOV is fast              ${fast_cmov-no}"
4227     echo "EBX available             ${ebx_available-no}"
4228     echo "EBP available             ${ebp_available-no}"
4229 fi
4230 if enabled arm; then
4231     echo "ARMv5TE enabled           ${armv5te-no}"
4232     echo "ARMv6 enabled             ${armv6-no}"
4233     echo "ARMv6T2 enabled           ${armv6t2-no}"
4234     echo "VFP enabled               ${vfp-no}"
4235     echo "NEON enabled              ${neon-no}"
4236     echo "THUMB enabled             ${thumb-no}"
4237 fi
4238 if enabled mips; then
4239     echo "MIPS FPU enabled          ${mipsfpu-no}"
4240     echo "MIPS32R2 enabled          ${mips32r2-no}"
4241     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4242     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4243 fi
4244 if enabled ppc; then
4245     echo "AltiVec enabled           ${altivec-no}"
4246     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4247     echo "dcbzl available           ${dcbzl-no}"
4248 fi
4249 if enabled sparc; then
4250     echo "VIS enabled               ${vis-no}"
4251 fi
4252 echo "debug symbols             ${debug-no}"
4253 echo "strip symbols             ${stripping-no}"
4254 echo "optimize for size         ${small-no}"
4255 echo "optimizations             ${optimizations-no}"
4256 echo "static                    ${static-no}"
4257 echo "shared                    ${shared-no}"
4258 echo "postprocessing support    ${postproc-no}"
4259 echo "new filter support        ${avfilter-no}"
4260 echo "network support           ${network-no}"
4261 echo "threading support         ${thread_type-no}"
4262 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4263 echo "SDL support               ${sdl-no}"
4264 echo "libdxva2 enabled          ${dxva2-no}"
4265 echo "libva enabled             ${vaapi-no}"
4266 echo "libvdpau enabled          ${vdpau-no}"
4267 echo "AVISynth enabled          ${avisynth-no}"
4268 echo "frei0r enabled            ${frei0r-no}"
4269 echo "gnutls enabled            ${gnutls-no}"
4270 echo "libaacplus enabled        ${libaacplus-no}"
4271 echo "libass enabled            ${libass-no}"
4272 echo "libcaca enabled           ${libcaca-no}"
4273 echo "libcdio support           ${libcdio-no}"
4274 echo "libcelt enabled           ${libcelt-no}"
4275 echo "libdc1394 support         ${libdc1394-no}"
4276 echo "libfaac enabled           ${libfaac-no}"
4277 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4278 echo "libgsm enabled            ${libgsm-no}"
4279 echo "libiec61883 support       ${libiec61883-no}"
4280 echo "libilbc enabled           ${libilbc-no}"
4281 echo "libmodplug enabled        ${libmodplug-no}"
4282 echo "libmp3lame enabled        ${libmp3lame-no}"
4283 echo "libnut enabled            ${libnut-no}"
4284 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4285 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4286 echo "libopencv support         ${libopencv-no}"
4287 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4288 echo "libopus enabled           ${libopus-no}"
4289 echo "libpulse enabled          ${libpulse-no}"
4290 echo "librtmp enabled           ${librtmp-no}"
4291 echo "libschroedinger enabled   ${libschroedinger-no}"
4292 echo "libsoxr enabled           ${libsoxr-no}"
4293 echo "libspeex enabled          ${libspeex-no}"
4294 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4295 echo "libtheora enabled         ${libtheora-no}"
4296 echo "libtwolame enabled        ${libtwolame-no}"
4297 echo "libutvideo enabled        ${libutvideo-no}"
4298 echo "libv4l2 enabled           ${libv4l2-no}"
4299 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4300 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4301 echo "libvorbis enabled         ${libvorbis-no}"
4302 echo "libvpx enabled            ${libvpx-no}"
4303 echo "libx264 enabled           ${libx264-no}"
4304 echo "libxavs enabled           ${libxavs-no}"
4305 echo "libxvid enabled           ${libxvid-no}"
4306 echo "openal enabled            ${openal-no}"
4307 echo "openssl enabled           ${openssl-no}"
4308 echo "zlib enabled              ${zlib-no}"
4309 echo "bzlib enabled             ${bzlib-no}"
4310 echo "texi2html enabled         ${texi2html-no}"
4311 echo "perl enabled              ${perl-no}"
4312 echo "pod2man enabled           ${pod2man-no}"
4313 echo "makeinfo enabled          ${makeinfo-no}"
4314 test -n "$random_seed" &&
4315     echo "random seed               ${random_seed}"
4316 echo
4317
4318 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4319     echo "Enabled ${type}s:"
4320     eval list=\$$(toupper $type)_LIST
4321     print_enabled '_*' $list | sort | pr -r -3 -t
4322     echo
4323 done
4324
4325 license="LGPL version 2.1 or later"
4326 if enabled nonfree; then
4327     license="nonfree and unredistributable"
4328 elif enabled gplv3; then
4329     license="GPL version 3 or later"
4330 elif enabled lgplv3; then
4331     license="LGPL version 3 or later"
4332 elif enabled gpl; then
4333     license="GPL version 2 or later"
4334 fi
4335
4336 echo "License: $license"
4337
4338 echo "Creating config.mak and config.h..."
4339
4340 test -e Makefile || $ln_s "$source_path/Makefile" .
4341
4342 enabled stripping || strip="echo skipping strip"
4343
4344 config_files="$TMPH config.mak"
4345
4346 cat > config.mak <<EOF
4347 # Automatically generated by configure - do not modify!
4348 ifndef FFMPEG_CONFIG_MAK
4349 FFMPEG_CONFIG_MAK=1
4350 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4351 prefix=$prefix
4352 LIBDIR=\$(DESTDIR)$libdir
4353 SHLIBDIR=\$(DESTDIR)$shlibdir
4354 INCDIR=\$(DESTDIR)$incdir
4355 BINDIR=\$(DESTDIR)$bindir
4356 DATADIR=\$(DESTDIR)$datadir
4357 MANDIR=\$(DESTDIR)$mandir
4358 SRC_PATH=$source_path
4359 ifndef MAIN_MAKEFILE
4360 SRC_PATH:=\$(SRC_PATH:.%=..%)
4361 endif
4362 CC_IDENT=$cc_ident
4363 ARCH=$arch
4364 CC=$cc
4365 CXX=$cxx
4366 AS=$as
4367 LD=$ld
4368 DEPCC=$dep_cc
4369 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4370 DEPAS=$as
4371 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4372 YASM=$yasmexe
4373 DEPYASM=$yasmexe
4374 AR=$ar
4375 ARFLAGS=$arflags
4376 AR_O=$ar_o
4377 RANLIB=$ranlib
4378 CP=cp -p
4379 LN_S=$ln_s
4380 STRIP=$strip
4381 CPPFLAGS=$CPPFLAGS
4382 CFLAGS=$CFLAGS
4383 CXXFLAGS=$CXXFLAGS
4384 ASFLAGS=$ASFLAGS
4385 AS_C=$AS_C
4386 AS_O=$AS_O
4387 CC_C=$CC_C
4388 CC_E=$CC_E
4389 CC_O=$CC_O
4390 CXX_C=$CXX_C
4391 CXX_O=$CXX_O
4392 LD_O=$LD_O
4393 LD_LIB=$LD_LIB
4394 LD_PATH=$LD_PATH
4395 DLLTOOL=$dlltool
4396 LDFLAGS=$LDFLAGS
4397 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4398 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4399 YASMFLAGS=$YASMFLAGS
4400 BUILDSUF=$build_suffix
4401 PROGSSUF=$progs_suffix
4402 FULLNAME=$FULLNAME
4403 LIBPREF=$LIBPREF
4404 LIBSUF=$LIBSUF
4405 LIBNAME=$LIBNAME
4406 SLIBPREF=$SLIBPREF
4407 SLIBSUF=$SLIBSUF
4408 EXESUF=$EXESUF
4409 EXTRA_VERSION=$extra_version
4410 CCDEP=$CCDEP
4411 CXXDEP=$CXXDEP
4412 CCDEP_FLAGS=$CCDEP_FLAGS
4413 ASDEP=$ASDEP
4414 ASDEP_FLAGS=$ASDEP_FLAGS
4415 CC_DEPFLAGS=$CC_DEPFLAGS
4416 AS_DEPFLAGS=$AS_DEPFLAGS
4417 HOSTCC=$host_cc
4418 HOSTLD=$host_ld
4419 HOSTCFLAGS=$host_cflags
4420 HOSTEXESUF=$HOSTEXESUF
4421 HOSTLDFLAGS=$host_ldflags
4422 HOSTLIBS=$host_libs
4423 DEPHOSTCC=$host_cc
4424 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4425 HOSTCCDEP=$HOSTCCDEP
4426 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4427 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4428 HOSTCC_C=$HOSTCC_C
4429 HOSTCC_O=$HOSTCC_O
4430 HOSTLD_O=$HOSTLD_O
4431 TARGET_EXEC=$target_exec
4432 TARGET_PATH=$target_path
4433 LIBS-ffplay=$sdl_libs
4434 CFLAGS-ffplay=$sdl_cflags
4435 ZLIB=$($ldflags_filter -lz)
4436 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4437 EXTRALIBS=$extralibs
4438 COMPAT_OBJS=$compat_objs
4439 EXEOBJS=$exeobjs
4440 INSTALL=$install
4441 LIBTARGET=${LIBTARGET}
4442 SLIBNAME=${SLIBNAME}
4443 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4444 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4445 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4446 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4447 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4448 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4449 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4450 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4451 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4452 NOREDZONE_FLAGS=$noredzone_flags
4453 EOF
4454
4455 get_version(){
4456     lcname=lib${1}
4457     name=$(toupper $lcname)
4458     file=$source_path/$lcname/version.h
4459     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4460     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4461     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4462     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4463     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4464 }
4465
4466 map 'get_version $v' $LIBRARY_LIST
4467
4468 cat > $TMPH <<EOF
4469 /* Automatically generated by configure - do not modify! */
4470 #ifndef FFMPEG_CONFIG_H
4471 #define FFMPEG_CONFIG_H
4472 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4473 #define FFMPEG_LICENSE "$(c_escape $license)"
4474 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4475 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4476 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4477 #define av_restrict $_restrict
4478 #define EXTERN_PREFIX "${extern_prefix}"
4479 #define EXTERN_ASM ${extern_prefix}
4480 #define SLIBSUF "$SLIBSUF"
4481 #define HAVE_MMX2 HAVE_MMXEXT
4482 EOF
4483
4484 test -n "$assert_level" &&
4485     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4486
4487 test -n "$malloc_prefix" &&
4488     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4489
4490 if enabled yasm; then
4491     append config_files $TMPASM
4492     printf '' >$TMPASM
4493 fi
4494
4495 print_config ARCH_   "$config_files" $ARCH_LIST
4496 print_config HAVE_   "$config_files" $HAVE_LIST
4497 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4498                                      $CONFIG_EXTRA      \
4499                                      $ALL_COMPONENTS    \
4500
4501 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4502 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4503
4504 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4505 cp_if_changed $TMPH config.h
4506 touch .config
4507
4508 enabled yasm && cp_if_changed $TMPASM config.asm
4509
4510 cat > $TMPH <<EOF
4511 /* Generated by ffconf */
4512 #ifndef AVUTIL_AVCONFIG_H
4513 #define AVUTIL_AVCONFIG_H
4514 EOF
4515
4516 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4517
4518 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4519
4520 cp_if_changed $TMPH libavutil/avconfig.h
4521
4522 if test -n "$WARNINGS"; then
4523     printf "\n$WARNINGS"
4524     enabled fatal_warnings && exit 1
4525 fi
4526
4527 # build pkg-config files
4528
4529 pkgconfig_generate(){
4530     name=$1
4531     shortname=${name#lib}${build_suffix}
4532     comment=$2
4533     version=$3
4534     libs=$4
4535     requires=$5
4536     enabled ${name#lib} || return 0
4537     mkdir -p $name
4538     cat <<EOF > $name/$name${build_suffix}.pc
4539 prefix=$prefix
4540 exec_prefix=\${prefix}
4541 libdir=$libdir
4542 includedir=$incdir
4543
4544 Name: $name
4545 Description: $comment
4546 Version: $version
4547 Requires: $(enabled shared || echo $requires)
4548 Requires.private: $(enabled shared && echo $requires)
4549 Conflicts:
4550 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4551 Libs.private: $(enabled shared && echo $libs)
4552 Cflags: -I\${includedir}
4553 EOF
4554
4555 mkdir -p doc/examples/pc-uninstalled
4556 includedir=${source_path}
4557 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4558     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4559 prefix=
4560 exec_prefix=
4561 libdir=\${pcfiledir}/../../../$name
4562 includedir=${includedir}
4563
4564 Name: $name
4565 Description: $comment
4566 Version: $version
4567 Requires: $requires
4568 Conflicts:
4569 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4570 Cflags: -I\${includedir}
4571 EOF
4572 }
4573
4574 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4575 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4576 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4577 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4578 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4579 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4580 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4581 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4582
4583 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4584 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4585
4586 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4587 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4588 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4589 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4590 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4591 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4592 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4593 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4594 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4595
4596 fix_ffmpeg_remote(){
4597     git_remote_from=$1
4598     git_remote_to=$2
4599     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4600     if [ "$fixme_remote" != "" ]; then
4601         echolog "
4602 Outdated domain in git config, the official domain for ffmpeg git is since
4603 November 2011, source.ffmpeg.org, both the old and the new point to the same
4604 repository and server. To update it enter the following commands:
4605 "
4606         for remote in $fixme_remote; do
4607             echolog "git remote set-url $remote $git_remote_to"
4608         done
4609     fi
4610 }
4611
4612 if test -f "$source_path/.git/config"; then
4613     remote_from=git.videolan.org
4614     remote_to=source.ffmpeg.org
4615     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4616     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4617 fi