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   --disable-network        disable network support [no]
 134   --disable-dct            disable DCT code
 135   --disable-dwt            disable DWT code
 136   --disable-error-resilience disable error resilience 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
 146   --enable-vda             enable VDA code
 147   --enable-vdpau           enable VDPAU code
 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-iconv           enable iconv [autodetect]
 193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 194   --enable-libass          enable libass subtitles rendering [no]
 195   --enable-libbluray       enable BluRay reading using libbluray [no]
 196   --enable-libcaca         enable textual display using libcaca
 197   --enable-libcelt         enable CELT decoding via libcelt [no]
 198   --enable-libcdio         enable audio CD grabbing with libcdio
 199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 200                            and libraw1394 [no]
 201   --enable-libfaac         enable AAC encoding via libfaac [no]
 202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 204   --enable-libfreetype     enable libfreetype [no]
 205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 208   --enable-libmodplug      enable ModPlug via libmodplug [no]
 209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 210   --enable-libnut          enable NUT (de)muxing via libnut,
 211                            native (de)muxer exists [no]
 212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 214   --enable-libopencv       enable video filtering via libopencv [no]
 215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 216   --enable-libopus         enable Opus decoding via libopus [no]
 217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 218   --enable-libquvi         enable quvi input via libquvi [no]
 219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 222   --enable-libsoxr         enable Include libsoxr resampling [no]
 223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 225   --enable-libtheora       enable Theora encoding via libtheora [no]
 226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 229   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 230   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 231   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 232                            native implementation exists [no]
 233   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 234   --enable-libx264         enable H.264 encoding via x264 [no]
 235   --enable-libxavs         enable AVS encoding via xavs [no]
 236   --enable-libxvid         enable Xvid encoding via xvidcore,
 237                            native MPEG-4/Xvid encoder exists [no]
 238   --enable-openal          enable OpenAL 1.1 capture support [no]
 239   --enable-opencl          enable OpenCL code
 240   --enable-openssl         enable openssl [no]
 241   --enable-x11grab         enable X11 grabbing [no]
 242   --enable-zlib            enable zlib [autodetect]
 243
 244 Advanced options (experts only):
 245   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 246   --enable-cross-compile   assume a cross-compiler is used
 247   --sysroot=PATH           root of cross-build tree
 248   --sysinclude=PATH        location of cross-build system headers
 249   --target-os=OS           compiler targets OS [$target_os]
 250   --target-exec=CMD        command to run executables on target
 251   --target-path=DIR        path to view of build directory on target
 252   --toolchain=NAME         set tool defaults according to NAME
 253   --nm=NM                  use nm tool NM [$nm_default]
 254   --ar=AR                  use archive tool AR [$ar_default]
 255   --as=AS                  use assembler AS [$as_default]
 256   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 257   --cc=CC                  use C compiler CC [$cc_default]
 258   --cxx=CXX                use C compiler CXX [$cxx_default]
 259   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 260   --ld=LD                  use linker LD [$ld_default]
 261   --host-cc=HOSTCC         use host C compiler HOSTCC
 262   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 263   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 264   --host-ld=HOSTLD         use host linker HOSTLD
 265   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 266   --host-libs=HLIBS        use libs HLIBS when linking for host
 267   --host-os=OS             compiler host OS [$target_os]
 268   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 269   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 270   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 271   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 272   --extra-version=STRING   version string suffix []
 273   --optflags=OPTFLAGS      override optimization-related compiler flags
 274   --build-suffix=SUFFIX    library name suffix []
 275   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 276   --progs-suffix=SUFFIX    program name suffix []
 277   --arch=ARCH              select architecture [$arch]
 278   --cpu=CPU                select the minimum required CPU (affects
 279                            instruction selection, may crash on older CPUs)
 280   --enable-pic             build position-independent code
 281   --enable-sram            allow use of on-chip SRAM
 282   --enable-thumb           compile for Thumb instruction set
 283   --disable-symver         disable symbol versioning
 284   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 285   --disable-safe-bitstream-reader
 286                            disable buffer boundary checking in bitreaders
 287                            (faster, but may crash)
 288   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 289   --enable-lto             use link-time optimization
 290
 291 Optimization options (experts only):
 292   --disable-asm            disable all assembler optimizations
 293   --disable-altivec        disable AltiVec optimizations
 294   --disable-amd3dnow       disable 3DNow! optimizations
 295   --disable-amd3dnowext    disable 3DNow! extended optimizations
 296   --disable-mmx            disable MMX optimizations
 297   --disable-mmxext         disable MMXEXT optimizations
 298   --disable-sse            disable SSE optimizations
 299   --disable-sse2           disable SSE2 optimizations
 300   --disable-sse3           disable SSE3 optimizations
 301   --disable-ssse3          disable SSSE3 optimizations
 302   --disable-sse4           disable SSE4 optimizations
 303   --disable-sse42          disable SSE4.2 optimizations
 304   --disable-avx            disable AVX optimizations
 305   --disable-fma4           disable FMA4 optimizations
 306   --disable-armv5te        disable armv5te optimizations
 307   --disable-armv6          disable armv6 optimizations
 308   --disable-armv6t2        disable armv6t2 optimizations
 309   --disable-vfp            disable VFP optimizations
 310   --disable-neon           disable NEON optimizations
 311   --disable-vis            disable VIS optimizations
 312   --disable-inline-asm     disable use of inline assembler
 313   --disable-yasm           disable use of yasm assembler
 314   --disable-mips32r2       disable MIPS32R2 optimizations
 315   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 316   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 317   --disable-mipsfpu        disable floating point MIPS optimizations
 318   --disable-fast-unaligned consider unaligned accesses slow
 319
 320 Developer options (useful when working on FFmpeg itself):
 321   --disable-debug          disable debugging symbols
 322   --enable-debug=LEVEL     set the debug level [$debuglevel]
 323   --disable-optimizations  disable compiler optimizations
 324   --enable-extra-warnings  enable more compiler warnings
 325   --disable-stripping      disable stripping of executables and shared libraries
 326   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 327                            2 causes a slowdown at runtime.
 328   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 329   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 330                            leaks and errors, using the specified valgrind binary.
 331                            Cannot be combined with --target-exec
 332   --enable-ftrapv          Trap arithmetic overflows
 333   --samples=PATH           location of test samples for FATE, if not set use
 334                            \$FATE_SAMPLES at make invocation time.
 335   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 336                            should be used only for debugging purposes)
 337   --enable-random          randomly enable/disable components
 338   --disable-random
 339   --enable-random=LIST     randomly enable/disable specific components or
 340   --disable-random=LIST    component groups. LIST is a comma-separated list
 341                            of NAME[:PROB] entries where NAME is a component
 342                            (group) and PROB the probability associated with
 343                            NAME (default 0.5).
 344   --random-seed=VALUE      seed value for --enable/disable-random
 345
 346 NOTE: Object files are built at the place where configure is launched.
 347 EOF
 348   exit 0
 349 }
 350
 351 quotes='""'
 352
 353 log(){
 354     echo "$@" >> $logfile
 355 }
 356
 357 log_file(){
 358     log BEGIN $1
 359     pr -n -t $1 >> $logfile
 360     log END $1
 361 }
 362
 363 echolog(){
 364     log "$@"
 365     echo "$@"
 366 }
 367
 368 warn(){
 369     log "WARNING: $*"
 370     WARNINGS="${WARNINGS}WARNING: $*\n"
 371 }
 372
 373 die(){
 374     echolog "$@"
 375     cat <<EOF
 376
 377 If you think configure made a mistake, make sure you are using the latest
 378 version from Git.  If the latest version fails, report the problem to the
 379 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 380 EOF
 381     if disabled logging; then
 382         cat <<EOF
 383 Rerun configure with logging enabled (do not use --disable-logging), and
 384 include the log this produces with your report.
 385 EOF
 386     else
 387         cat <<EOF
 388 Include the log file "$logfile" produced by configure as this will help
 389 solving the problem.
 390 EOF
 391     fi
 392     exit 1
 393 }
 394
 395 # Avoid locale weirdness, besides we really just want to translate ASCII.
 396 toupper(){
 397     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 398 }
 399
 400 tolower(){
 401     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 402 }
 403
 404 c_escape(){
 405     echo "$*" | sed 's/["\\]/\\\0/g'
 406 }
 407
 408 sh_quote(){
 409     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 410     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 411     echo "$v"
 412 }
 413
 414 cleanws(){
 415     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 416 }
 417
 418 filter(){
 419     pat=$1
 420     shift
 421     for v; do
 422         eval "case $v in $pat) echo $v ;; esac"
 423     done
 424 }
 425
 426 filter_out(){
 427     pat=$1
 428     shift
 429     for v; do
 430         eval "case $v in $pat) ;; *) echo $v ;; esac"
 431     done
 432 }
 433
 434 map(){
 435     m=$1
 436     shift
 437     for v; do eval $m; done
 438 }
 439
 440 add_suffix(){
 441     suffix=$1
 442     shift
 443     for v; do echo ${v}${suffix}; done
 444 }
 445
 446 set_all(){
 447     value=$1
 448     shift
 449     for var in $*; do
 450         eval $var=$value
 451     done
 452 }
 453
 454 set_weak(){
 455     value=$1
 456     shift
 457     for var; do
 458         eval : \${$var:=$value}
 459     done
 460 }
 461
 462 sanitize_var_name(){
 463     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 464 }
 465
 466 set_safe(){
 467     var=$1
 468     shift
 469     eval $(sanitize_var_name "$var")='$*'
 470 }
 471
 472 get_safe(){
 473     eval echo \$$(sanitize_var_name "$1")
 474 }
 475
 476 pushvar(){
 477     for var in $*; do
 478         eval level=\${${var}_level:=0}
 479         eval ${var}_${level}="\$$var"
 480         eval ${var}_level=$(($level+1))
 481     done
 482 }
 483
 484 popvar(){
 485     for var in $*; do
 486         eval level=\${${var}_level:-0}
 487         test $level = 0 && continue
 488         eval level=$(($level-1))
 489         eval $var="\${${var}_${level}}"
 490         eval ${var}_level=$level
 491         eval unset ${var}_${level}
 492     done
 493 }
 494
 495 enable(){
 496     set_all yes $*
 497 }
 498
 499 disable(){
 500     set_all no $*
 501 }
 502
 503 enable_weak(){
 504     set_weak yes $*
 505 }
 506
 507 disable_weak(){
 508     set_weak no $*
 509 }
 510
 511 enable_safe(){
 512     for var; do
 513         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 514     done
 515 }
 516
 517 disable_safe(){
 518     for var; do
 519         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 520     done
 521 }
 522
 523 do_enable_deep(){
 524     for var; do
 525         enabled $var && continue
 526         eval sel="\$${var}_select"
 527         eval sgs="\$${var}_suggest"
 528         pushvar var sgs
 529         enable_deep $sel
 530         popvar sgs
 531         enable_deep_weak $sgs
 532         popvar var
 533     done
 534 }
 535
 536 enable_deep(){
 537     do_enable_deep $*
 538     enable $*
 539 }
 540
 541 enable_deep_weak(){
 542     do_enable_deep $*
 543     enable_weak $*
 544 }
 545
 546 enabled(){
 547     test "${1#!}" = "$1" && op== || op=!=
 548     eval test "x\$${1#!}" $op "xyes"
 549 }
 550
 551 disabled(){
 552     test "${1#!}" = "$1" && op== || op=!=
 553     eval test "x\$${1#!}" $op "xno"
 554 }
 555
 556 enabled_all(){
 557     for opt; do
 558         enabled $opt || return 1
 559     done
 560 }
 561
 562 disabled_all(){
 563     for opt; do
 564         disabled $opt || return 1
 565     done
 566 }
 567
 568 enabled_any(){
 569     for opt; do
 570         enabled $opt && return 0
 571     done
 572 }
 573
 574 disabled_any(){
 575     for opt; do
 576         disabled $opt && return 0
 577     done
 578     return 1
 579 }
 580
 581 set_default(){
 582     for opt; do
 583         eval : \${$opt:=\$${opt}_default}
 584     done
 585 }
 586
 587 is_in(){
 588     value=$1
 589     shift
 590     for var in $*; do
 591         [ $var = $value ] && return 0
 592     done
 593     return 1
 594 }
 595
 596 do_check_deps(){
 597     for cfg; do
 598         cfg="${cfg#!}"
 599         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 600         disabled ${cfg}_checking && continue
 601         enable ${cfg}_checking
 602         append allopts $cfg
 603
 604         eval dep_all="\$${cfg}_deps"
 605         eval dep_any="\$${cfg}_deps_any"
 606         eval dep_sel="\$${cfg}_select"
 607         eval dep_sgs="\$${cfg}_suggest"
 608         eval dep_ifa="\$${cfg}_if"
 609         eval dep_ifn="\$${cfg}_if_any"
 610
 611         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 612         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 613         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 614
 615         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 616         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 617         enabled_all  $dep_all || disable $cfg
 618         enabled_any  $dep_any || disable $cfg
 619         disabled_any $dep_sel && disable $cfg
 620
 621         if enabled $cfg; then
 622             enable_deep $dep_sel
 623             enable_deep_weak $dep_sgs
 624         fi
 625
 626         disable ${cfg}_checking
 627     done
 628 }
 629
 630 check_deps(){
 631     unset allopts
 632
 633     do_check_deps "$@"
 634
 635     for cfg in $allopts; do
 636         enabled $cfg || continue
 637         eval dep_extralibs="\$${cfg}_extralibs"
 638         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 639     done
 640 }
 641
 642 print_config(){
 643     pfx=$1
 644     files=$2
 645     shift 2
 646     map 'eval echo "$v \${$v:-no}"' "$@" |
 647     awk "BEGIN { split(\"$files\", files) }
 648         {
 649             c = \"$pfx\" toupper(\$1);
 650             v = \$2;
 651             sub(/yes/, 1, v);
 652             sub(/no/,  0, v);
 653             for (f in files) {
 654                 file = files[f];
 655                 if (file ~ /\\.h\$/) {
 656                     printf(\"#define %s %d\\n\", c, v) >>file;
 657                 } else if (file ~ /\\.asm\$/) {
 658                     printf(\"%%define %s %d\\n\", c, v) >>file;
 659                 } else if (file ~ /\\.mak\$/) {
 660                     n = -v ? \"\" : \"!\";
 661                     printf(\"%s%s=yes\\n\", n, c) >>file;
 662                 } else if (file ~ /\\.texi\$/) {
 663                     pre = -v ? \"\" : \"@c \";
 664                     yesno = \$2;
 665                     c2 = tolower(c);
 666                     gsub(/_/, \"-\", c2);
 667                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 668                 }
 669             }
 670         }"
 671 }
 672
 673 print_enabled(){
 674     suf=$1
 675     shift
 676     for v; do
 677         enabled $v && printf "%s\n" ${v%$suf};
 678     done
 679 }
 680
 681 append(){
 682     var=$1
 683     shift
 684     eval "$var=\"\$$var $*\""
 685 }
 686
 687 prepend(){
 688     var=$1
 689     shift
 690     eval "$var=\"$* \$$var\""
 691 }
 692
 693 add_cppflags(){
 694     append CPPFLAGS "$@"
 695 }
 696
 697 add_cflags(){
 698     append CFLAGS $($cflags_filter "$@")
 699 }
 700
 701 add_cxxflags(){
 702     append CXXFLAGS $($cflags_filter "$@")
 703 }
 704
 705 add_asflags(){
 706     append ASFLAGS $($asflags_filter "$@")
 707 }
 708
 709 add_ldflags(){
 710     append LDFLAGS $($ldflags_filter "$@")
 711 }
 712
 713 add_extralibs(){
 714     prepend extralibs $($ldflags_filter "$@")
 715 }
 716
 717 add_host_cppflags(){
 718     append host_cppflags "$@"
 719 }
 720
 721 add_host_cflags(){
 722     append host_cflags $($host_cflags_filter "$@")
 723 }
 724
 725 add_host_ldflags(){
 726     append host_ldflags $($host_ldflags_filter "$@")
 727 }
 728
 729 add_compat(){
 730     append compat_objs $1
 731     shift
 732     map 'add_cppflags -D$v' "$@"
 733 }
 734
 735 check_cmd(){
 736     log "$@"
 737     "$@" >> $logfile 2>&1
 738 }
 739
 740 cc_o(){
 741     eval printf '%s\\n' $CC_O
 742 }
 743
 744 cc_e(){
 745     eval printf '%s\\n' $CC_E
 746 }
 747
 748 check_cc(){
 749     log check_cc "$@"
 750     cat > $TMPC
 751     log_file $TMPC
 752     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 753 }
 754
 755 check_cxx(){
 756     log check_cxx "$@"
 757     cat > $TMPCPP
 758     log_file $TMPCPP
 759     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 760 }
 761
 762 check_cpp(){
 763     log check_cpp "$@"
 764     cat > $TMPC
 765     log_file $TMPC
 766     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 767 }
 768
 769 as_o(){
 770     eval printf '%s\\n' $AS_O
 771 }
 772
 773 check_as(){
 774     log check_as "$@"
 775     cat > $TMPS
 776     log_file $TMPS
 777     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 778 }
 779
 780 check_inline_asm(){
 781     log check_inline_asm "$@"
 782     name="$1"
 783     code="$2"
 784     shift 2
 785     disable $name
 786     check_cc "$@" <<EOF && enable $name
 787 void foo(void){ __asm__ volatile($code); }
 788 EOF
 789 }
 790
 791 check_insn(){
 792     log check_insn "$@"
 793     check_inline_asm ${1}_inline "\"$2\""
 794     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 795 }
 796
 797 check_yasm(){
 798     log check_yasm "$@"
 799     echo "$1" > $TMPS
 800     log_file $TMPS
 801     shift 1
 802     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 803 }
 804
 805 ld_o(){
 806     eval printf '%s\\n' $LD_O
 807 }
 808
 809 check_ld(){
 810     log check_ld "$@"
 811     type=$1
 812     shift 1
 813     flags=$(filter_out '-l*|*.so' $@)
 814     libs=$(filter '-l*|*.so' $@)
 815     check_$type $($cflags_filter $flags) || return
 816     flags=$($ldflags_filter $flags)
 817     libs=$($ldflags_filter $libs)
 818     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 819 }
 820
 821 check_code(){
 822     log check_code "$@"
 823     check=$1
 824     headers=$2
 825     code=$3
 826     shift 3
 827     {
 828         for hdr in $headers; do
 829             echo "#include <$hdr>"
 830         done
 831         echo "int main(void) { $code; return 0; }"
 832     } | check_$check "$@"
 833 }
 834
 835 check_cppflags(){
 836     log check_cppflags "$@"
 837     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 838 int x;
 839 EOF
 840 }
 841
 842 check_cflags(){
 843     log check_cflags "$@"
 844     set -- $($cflags_filter "$@")
 845     check_cc "$@" <<EOF && append CFLAGS "$@"
 846 int x;
 847 EOF
 848 }
 849
 850 check_cxxflags(){
 851     log check_cxxflags "$@"
 852     set -- $($cflags_filter "$@")
 853     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 854 int x;
 855 EOF
 856 }
 857
 858 test_ldflags(){
 859     log test_ldflags "$@"
 860     check_ld "cc" "$@" <<EOF
 861 int main(void){ return 0; }
 862 EOF
 863 }
 864
 865 check_ldflags(){
 866     log check_ldflags "$@"
 867     test_ldflags "$@" && add_ldflags "$@"
 868 }
 869
 870 check_header(){
 871     log check_header "$@"
 872     header=$1
 873     shift
 874     disable_safe $header
 875     check_cpp "$@" <<EOF && enable_safe $header
 876 #include <$header>
 877 int x;
 878 EOF
 879 }
 880
 881 check_func(){
 882     log check_func "$@"
 883     func=$1
 884     shift
 885     disable $func
 886     check_ld "cc" "$@" <<EOF && enable $func
 887 extern int $func();
 888 int main(void){ $func(); }
 889 EOF
 890 }
 891
 892 check_mathfunc(){
 893     log check_mathfunc "$@"
 894     func=$1
 895     narg=$2
 896     shift 2
 897     test $narg = 2 && args="f, g" || args="f"
 898     disable $func
 899     check_ld "cc" "$@" <<EOF && enable $func
 900 #include <math.h>
 901 float foo(float f, float g) { return $func($args); }
 902 int main(void){ return (int) foo; }
 903 EOF
 904 }
 905
 906 check_func_headers(){
 907     log check_func_headers "$@"
 908     headers=$1
 909     funcs=$2
 910     shift 2
 911     {
 912         for hdr in $headers; do
 913             echo "#include <$hdr>"
 914         done
 915         for func in $funcs; do
 916             echo "long check_$func(void) { return (long) $func; }"
 917         done
 918         echo "int main(void) { return 0; }"
 919     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 920 }
 921
 922 check_class_headers_cpp(){
 923     log check_class_headers_cpp "$@"
 924     headers=$1
 925     classes=$2
 926     shift 2
 927     {
 928         for hdr in $headers; do
 929             echo "#include <$hdr>"
 930         done
 931         echo "int main(void) { "
 932         i=1
 933         for class in $classes; do
 934             echo "$class obj$i;"
 935             i=$(expr $i + 1)
 936         done
 937         echo "return 0; }"
 938     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 939 }
 940
 941 check_cpp_condition(){
 942     log check_cpp_condition "$@"
 943     header=$1
 944     condition=$2
 945     shift 2
 946     check_cpp "$@" <<EOF
 947 #include <$header>
 948 #if !($condition)
 949 #error "unsatisfied condition: $condition"
 950 #endif
 951 EOF
 952 }
 953
 954 check_lib(){
 955     log check_lib "$@"
 956     header="$1"
 957     func="$2"
 958     shift 2
 959     check_header $header && check_func $func "$@" && add_extralibs "$@"
 960 }
 961
 962 check_lib2(){
 963     log check_lib2 "$@"
 964     headers="$1"
 965     funcs="$2"
 966     shift 2
 967     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 968 }
 969
 970 check_lib_cpp(){
 971     log check_lib_cpp "$@"
 972     headers="$1"
 973     classes="$2"
 974     shift 2
 975     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 976 }
 977
 978 check_pkg_config(){
 979     log check_pkg_config "$@"
 980     pkg="$1"
 981     headers="$2"
 982     funcs="$3"
 983     shift 3
 984     $pkg_config --exists $pkg 2>/dev/null || return
 985     pkg_cflags=$($pkg_config --cflags $pkg)
 986     pkg_libs=$($pkg_config --libs $pkg)
 987     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 988         set_safe ${pkg}_cflags $pkg_cflags   &&
 989         set_safe ${pkg}_libs   $pkg_libs
 990 }
 991
 992 check_exec(){
 993     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 994 }
 995
 996 check_exec_crash(){
 997     code=$(cat)
 998
 999     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1000     # are safe but may not be available everywhere.  Thus we use
1001     # raise(SIGTERM) instead.  The check is run in a subshell so we
1002     # can redirect the "Terminated" message from the shell.  SIGBUS
1003     # is not defined by standard C so it is used conditionally.
1004
1005     (check_exec "$@") >> $logfile 2>&1 <<EOF
1006 #include <signal.h>
1007 static void sighandler(int sig){
1008     raise(SIGTERM);
1009 }
1010 int func(void){
1011     $code
1012 }
1013 int (*func_ptr)(void) = func;
1014 int main(void){
1015     signal(SIGILL, sighandler);
1016     signal(SIGFPE, sighandler);
1017     signal(SIGSEGV, sighandler);
1018 #ifdef SIGBUS
1019     signal(SIGBUS, sighandler);
1020 #endif
1021     return func_ptr();
1022 }
1023 EOF
1024 }
1025
1026 check_type(){
1027     log check_type "$@"
1028     headers=$1
1029     type=$2
1030     shift 2
1031     disable_safe "$type"
1032     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1033 }
1034
1035 check_struct(){
1036     log check_struct "$@"
1037     headers=$1
1038     struct=$2
1039     member=$3
1040     shift 3
1041     disable_safe "${struct}_${member}"
1042     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1043         enable_safe "${struct}_${member}"
1044 }
1045
1046 check_builtin(){
1047     log check_builtin "$@"
1048     name=$1
1049     headers=$2
1050     builtin=$3
1051     shift 3
1052     disable "$name"
1053     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1054 }
1055
1056 require(){
1057     name="$1"
1058     header="$2"
1059     func="$3"
1060     shift 3
1061     check_lib $header $func "$@" || die "ERROR: $name not found"
1062 }
1063
1064 require2(){
1065     name="$1"
1066     headers="$2"
1067     func="$3"
1068     shift 3
1069     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1070 }
1071
1072 require_cpp(){
1073     name="$1"
1074     headers="$2"
1075     classes="$3"
1076     shift 3
1077     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1078 }
1079
1080 require_pkg_config(){
1081     pkg="$1"
1082     check_pkg_config "$@" || die "ERROR: $pkg not found"
1083     add_cflags    $(get_safe ${pkg}_cflags)
1084     add_extralibs $(get_safe ${pkg}_libs)
1085 }
1086
1087 hostcc_o(){
1088     eval printf '%s\\n' $HOSTCC_O
1089 }
1090
1091 check_host_cc(){
1092     log check_host_cc "$@"
1093     cat > $TMPC
1094     log_file $TMPC
1095     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1096 }
1097
1098 check_host_cppflags(){
1099     log check_host_cppflags "$@"
1100     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1101 int x;
1102 EOF
1103 }
1104
1105 check_host_cflags(){
1106     log check_host_cflags "$@"
1107     set -- $($host_cflags_filter "$@")
1108     check_host_cc "$@" <<EOF && append host_cflags "$@"
1109 int x;
1110 EOF
1111 }
1112
1113 apply(){
1114     file=$1
1115     shift
1116     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1117 }
1118
1119 cp_if_changed(){
1120     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1121     mkdir -p "$(dirname $2)"
1122     $cp_f "$1" "$2"
1123 }
1124
1125 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1126 # system-dependent things.
1127
1128 COMPONENT_LIST="
1129     bsfs
1130     decoders
1131     demuxers
1132     encoders
1133     filters
1134     hwaccels
1135     indevs
1136     muxers
1137     outdevs
1138     parsers
1139     protocols
1140 "
1141
1142 EXTERNAL_LIBRARY_LIST="
1143     avisynth
1144     bzlib
1145     crystalhd
1146     fontconfig
1147     frei0r
1148     gnutls
1149     iconv
1150     libaacplus
1151     libass
1152     libbluray
1153     libcaca
1154     libcdio
1155     libcelt
1156     libdc1394
1157     libfaac
1158     libfdk_aac
1159     libflite
1160     libfreetype
1161     libgsm
1162     libiec61883
1163     libilbc
1164     libmodplug
1165     libmp3lame
1166     libnut
1167     libopencore_amrnb
1168     libopencore_amrwb
1169     libopencv
1170     libopenjpeg
1171     libopus
1172     libpulse
1173     libquvi
1174     librtmp
1175     libschroedinger
1176     libshine
1177     libsoxr
1178     libspeex
1179     libstagefright_h264
1180     libtheora
1181     libtwolame
1182     libutvideo
1183     libv4l2
1184     libvo_aacenc
1185     libvo_amrwbenc
1186     libvorbis
1187     libvpx
1188     libx264
1189     libxavs
1190     libxvid
1191     openal
1192     opencl
1193     openssl
1194     x11grab
1195     zlib
1196 "
1197
1198 DOCUMENT_LIST="
1199     doc
1200     htmlpages
1201     manpages
1202     podpages
1203     txtpages
1204 "
1205
1206 HWACCEL_LIST="
1207     dxva2
1208     vaapi
1209     vda
1210     vdpau
1211 "
1212
1213 LIBRARY_LIST="
1214     avcodec
1215     avdevice
1216     avfilter
1217     avformat
1218     avresample
1219     avutil
1220     postproc
1221     swresample
1222     swscale
1223 "
1224
1225 PROGRAM_LIST="
1226     ffplay
1227     ffprobe
1228     ffserver
1229     ffmpeg
1230 "
1231
1232 CONFIG_LIST="
1233     $COMPONENT_LIST
1234     $DOCUMENT_LIST
1235     $EXTERNAL_LIBRARY_LIST
1236     $HWACCEL_LIST
1237     $LIBRARY_LIST
1238     $PROGRAM_LIST
1239     dct
1240     dwt
1241     error_resilience
1242     fast_unaligned
1243     fft
1244     ftrapv
1245     gpl
1246     gray
1247     hardcoded_tables
1248     incompatible_fork_abi
1249     lsp
1250     lzo
1251     mdct
1252     memalign_hack
1253     memory_poisoning
1254     network
1255     nonfree
1256     pic
1257     rdft
1258     runtime_cpudetect
1259     safe_bitstream_reader
1260     shared
1261     small
1262     sram
1263     static
1264     swscale_alpha
1265     thumb
1266     version3
1267     xmm_clobber_test
1268 "
1269
1270 THREADS_LIST='
1271     pthreads
1272     w32threads
1273     os2threads
1274 '
1275
1276 ATOMICS_LIST='
1277     atomics_gcc
1278     atomics_suncc
1279     atomics_win32
1280 '
1281
1282 ARCH_LIST='
1283     aarch64
1284     alpha
1285     arm
1286     avr32
1287     avr32_ap
1288     avr32_uc
1289     bfin
1290     ia64
1291     m68k
1292     mips
1293     mips64
1294     parisc
1295     ppc
1296     ppc64
1297     s390
1298     sh4
1299     sparc
1300     sparc64
1301     tilegx
1302     tilepro
1303     tomi
1304     x86
1305     x86_32
1306     x86_64
1307 '
1308
1309 ARCH_EXT_LIST_ARM='
1310     armv5te
1311     armv6
1312     armv6t2
1313     neon
1314     vfp
1315     vfpv3
1316 '
1317
1318 ARCH_EXT_LIST_X86='
1319     amd3dnow
1320     amd3dnowext
1321     avx
1322     fma4
1323     mmx
1324     mmxext
1325     sse
1326     sse2
1327     sse3
1328     sse4
1329     sse42
1330     ssse3
1331 '
1332
1333 ARCH_EXT_LIST="
1334     $ARCH_EXT_LIST_ARM
1335     $ARCH_EXT_LIST_X86
1336     altivec
1337     ppc4xx
1338     vis
1339     mipsfpu
1340     mips32r2
1341     mipsdspr1
1342     mipsdspr2
1343 "
1344
1345 HAVE_LIST_CMDLINE='
1346     inline_asm
1347     symver
1348     yasm
1349 '
1350
1351 HAVE_LIST_PUB='
1352     bigendian
1353     fast_unaligned
1354     incompatible_fork_abi
1355 '
1356
1357 MATH_FUNCS="
1358     atanf
1359     atan2f
1360     cbrt
1361     cbrtf
1362     cosf
1363     exp2
1364     exp2f
1365     expf
1366     isinf
1367     isnan
1368     ldexpf
1369     llrint
1370     llrintf
1371     log2
1372     log2f
1373     log10f
1374     lrint
1375     lrintf
1376     powf
1377     rint
1378     round
1379     roundf
1380     sinf
1381     trunc
1382     truncf
1383 "
1384
1385 HAVE_LIST="
1386     $ARCH_EXT_LIST
1387     $(add_suffix _external $ARCH_EXT_LIST)
1388     $(add_suffix _inline   $ARCH_EXT_LIST)
1389     $HAVE_LIST_CMDLINE
1390     $HAVE_LIST_PUB
1391     $THREADS_LIST
1392     $ATOMICS_LIST
1393     $MATH_FUNCS
1394     access
1395     aligned_malloc
1396     aligned_stack
1397     alsa_asoundlib_h
1398     altivec_h
1399     arpa_inet_h
1400     asm_mod_q
1401     asm_mod_y
1402     asm_types_h
1403     atomic_cas_ptr
1404     atomics_native
1405     attribute_may_alias
1406     attribute_packed
1407     cdio_paranoia_h
1408     cdio_paranoia_paranoia_h
1409     clock_gettime
1410     closesocket
1411     cmov
1412     CommandLineToArgvW
1413     cpunop
1414     CryptGenRandom
1415     dcbzl
1416     dev_bktr_ioctl_bt848_h
1417     dev_bktr_ioctl_meteor_h
1418     dev_ic_bt8xx_h
1419     dev_video_bktr_ioctl_bt848_h
1420     dev_video_meteor_ioctl_meteor_h
1421     direct_h
1422     dlfcn_h
1423     dlopen
1424     dos_paths
1425     dxva_h
1426     ebp_available
1427     ebx_available
1428     fast_64bit
1429     fast_clz
1430     fast_cmov
1431     fcntl
1432     fork
1433     getaddrinfo
1434     gethrtime
1435     getopt
1436     GetProcessAffinityMask
1437     GetProcessMemoryInfo
1438     GetProcessTimes
1439     GetSystemTimeAsFileTime
1440     getrusage
1441     getservbyport
1442     gettimeofday
1443     glob
1444     gnu_as
1445     gsm_h
1446     ibm_asm
1447     inet_aton
1448     io_h
1449     isatty
1450     jack_port_get_latency_range
1451     kbhit
1452     ldbrx
1453     libdc1394_1
1454     libdc1394_2
1455     local_aligned_16
1456     local_aligned_8
1457     localtime_r
1458     loongson
1459     lzo1x_999_compress
1460     machine_ioctl_bt848_h
1461     machine_ioctl_meteor_h
1462     machine_rw_barrier
1463     makeinfo
1464     malloc_h
1465     MapViewOfFile
1466     memalign
1467     MemoryBarrier
1468     mkstemp
1469     mm_empty
1470     mmap
1471     mprotect
1472     msvcrt
1473     nanosleep
1474     openjpeg_1_5_openjpeg_h
1475     PeekNamedPipe
1476     perl
1477     pod2man
1478     poll_h
1479     posix_memalign
1480     pthread_cancel
1481     rdtsc
1482     rsync_contimeout
1483     sched_getaffinity
1484     sdl
1485     SetConsoleTextAttribute
1486     setmode
1487     setrlimit
1488     Sleep
1489     sndio_h
1490     socklen_t
1491     soundcard_h
1492     strerror_r
1493     struct_addrinfo
1494     struct_group_source_req
1495     struct_ip_mreq_source
1496     struct_ipv6_mreq
1497     struct_pollfd
1498     struct_rusage_ru_maxrss
1499     struct_sctp_event_subscribe
1500     struct_sockaddr_in6
1501     struct_sockaddr_sa_len
1502     struct_sockaddr_storage
1503     struct_v4l2_frmivalenum_discrete
1504     symver_asm_label
1505     symver_gnu_asm
1506     sync_val_compare_and_swap
1507     sysconf
1508     sysctl
1509     sys_mman_h
1510     sys_param_h
1511     sys_resource_h
1512     sys_select_h
1513     sys_soundcard_h
1514     sys_time_h
1515     sys_videoio_h
1516     termios_h
1517     texi2html
1518     threads
1519     unistd_h
1520     usleep
1521     vfp_args
1522     VirtualAlloc
1523     windows_h
1524     winsock2_h
1525     xform_asm
1526     xmm_clobbers
1527 "
1528
1529 # options emitted with CONFIG_ prefix but not available on the command line
1530 CONFIG_EXTRA="
1531     aandcttables
1532     ac3dsp
1533     audio_frame_queue
1534     dsputil
1535     frame_thread_encoder
1536     gcrypt
1537     golomb
1538     gplv3
1539     h264chroma
1540     h264dsp
1541     h264pred
1542     h264qpel
1543     hpeldsp
1544     huffman
1545     lgplv3
1546     lpc
1547     mpegaudio
1548     mpegaudiodsp
1549     mpegvideo
1550     mpegvideoenc
1551     nettle
1552     rangecoder
1553     rtpdec
1554     rtpenc_chain
1555     sinewin
1556     videodsp
1557     vp3dsp
1558 "
1559
1560 CMDLINE_SELECT="
1561     $ARCH_EXT_LIST
1562     $CONFIG_LIST
1563     $HAVE_LIST_CMDLINE
1564     $THREADS_LIST
1565     asm
1566     cross_compile
1567     debug
1568     extra_warnings
1569     logging
1570     lto
1571     optimizations
1572     stripping
1573 "
1574
1575 PATHS_LIST='
1576     bindir
1577     datadir
1578     incdir
1579     libdir
1580     mandir
1581     prefix
1582     shlibdir
1583 '
1584
1585 CMDLINE_SET="
1586     $PATHS_LIST
1587     ar
1588     arch
1589     as
1590     assert_level
1591     build_suffix
1592     cc
1593     cpu
1594     cross_prefix
1595     cxx
1596     dep_cc
1597     extra_version
1598     host_cc
1599     host_cflags
1600     host_ld
1601     host_ldflags
1602     host_libs
1603     host_os
1604     install
1605     ld
1606     logfile
1607     malloc_prefix
1608     nm
1609     optflags
1610     pkg_config
1611     progs_suffix
1612     random_seed
1613     samples
1614     strip
1615     sysinclude
1616     sysroot
1617     target_exec
1618     target_os
1619     target_path
1620     toolchain
1621     valgrind
1622     yasmexe
1623 "
1624
1625 CMDLINE_APPEND="
1626     extra_cflags
1627     extra_cxxflags
1628     host_cppflags
1629 "
1630
1631 # code dependency declarations
1632
1633 # architecture extensions
1634
1635 armv5te_deps="arm"
1636 armv6_deps="arm"
1637 armv6t2_deps="arm"
1638 neon_deps="arm"
1639 vfp_deps="arm"
1640 vfpv3_deps="vfp"
1641
1642 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1643
1644 mipsfpu_deps="mips"
1645 mips32r2_deps="mips"
1646 mipsdspr1_deps="mips"
1647 mipsdspr2_deps="mips"
1648
1649 altivec_deps="ppc"
1650 ppc4xx_deps="ppc"
1651
1652 vis_deps="sparc"
1653
1654 x86_64_suggest="cmov fast_cmov"
1655
1656 amd3dnow_deps="mmx"
1657 amd3dnowext_deps="amd3dnow"
1658 mmx_deps="x86"
1659 mmxext_deps="mmx"
1660 sse_deps="mmxext"
1661 sse2_deps="sse"
1662 sse3_deps="sse2"
1663 ssse3_deps="sse3"
1664 sse4_deps="ssse3"
1665 sse42_deps="sse4"
1666 avx_deps="sse42"
1667 fma4_deps="avx"
1668
1669 mmx_external_deps="yasm"
1670 mmx_inline_deps="inline_asm"
1671 mmx_suggest="mmx_external mmx_inline"
1672
1673 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1674     eval dep=\$${ext}_deps
1675     eval ${ext}_external_deps='"${dep}_external"'
1676     eval ${ext}_inline_deps='"${dep}_inline"'
1677     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1678 done
1679
1680 aligned_stack_if_any="ppc x86"
1681 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1682 fast_clz_if_any="alpha avr32 mips ppc x86"
1683 fast_unaligned_if_any="ppc x86"
1684
1685 inline_asm_deps="!tms470"
1686 need_memalign="altivec neon sse"
1687
1688 symver_if_any="symver_asm_label symver_gnu_asm"
1689
1690 log2_deps="!msvcrt"
1691
1692 # subsystems
1693 dct_select="rdft"
1694 error_resilience_select="dsputil"
1695 frame_thread_encoder_deps="encoders threads"
1696 lpc_select="dsputil"
1697 mdct_select="fft"
1698 rdft_select="fft"
1699 mpegaudio_select="mpegaudiodsp"
1700 mpegaudiodsp_select="dct"
1701 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1702 mpegvideoenc_select="mpegvideo"
1703
1704 # decoders / encoders
1705 aac_decoder_select="mdct sinewin"
1706 aac_encoder_select="audio_frame_queue mdct sinewin"
1707 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1708 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1709 ac3_encoder_select="mdct ac3dsp dsputil"
1710 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1711 alac_encoder_select="lpc"
1712 als_decoder_select="dsputil"
1713 amrnb_decoder_select="lsp"
1714 amrwb_decoder_select="lsp"
1715 amv_decoder_select="dsputil hpeldsp"
1716 amv_encoder_select="aandcttables"
1717 ape_decoder_select="dsputil"
1718 asv1_decoder_select="dsputil"
1719 asv1_encoder_select="dsputil"
1720 asv2_decoder_select="dsputil"
1721 asv2_encoder_select="dsputil"
1722 atrac1_decoder_select="mdct sinewin"
1723 atrac3_decoder_select="mdct"
1724 bink_decoder_select="dsputil hpeldsp"
1725 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1726 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1727 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1728 cllc_decoder_select="dsputil"
1729 comfortnoise_encoder_select="lpc"
1730 cook_decoder_select="dsputil mdct sinewin"
1731 cscd_decoder_select="lzo"
1732 cscd_decoder_suggest="zlib"
1733 dca_decoder_select="mdct"
1734 dirac_decoder_select="dsputil dwt golomb videodsp"
1735 dnxhd_decoder_select="dsputil"
1736 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1737 dvvideo_decoder_select="dsputil"
1738 dvvideo_encoder_select="dsputil"
1739 dxa_decoder_select="zlib"
1740 eac3_decoder_select="ac3_decoder"
1741 eac3_encoder_select="ac3_encoder"
1742 eamad_decoder_select="aandcttables dsputil mpegvideo"
1743 eatgq_decoder_select="aandcttables"
1744 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1745 exr_decoder_select="zlib"
1746 ffv1_decoder_select="dsputil golomb rangecoder"
1747 ffv1_encoder_select="dsputil rangecoder"
1748 ffvhuff_decoder_select="dsputil"
1749 ffvhuff_encoder_select="dsputil huffman"
1750 flac_decoder_select="golomb"
1751 flac_encoder_select="dsputil golomb lpc"
1752 flashsv_decoder_select="zlib"
1753 flashsv_encoder_select="zlib"
1754 flashsv2_encoder_select="zlib"
1755 flashsv2_decoder_select="zlib"
1756 flv_decoder_select="h263_decoder"
1757 flv_encoder_select="h263_encoder"
1758 fourxm_decoder_select="dsputil"
1759 fraps_decoder_select="dsputil huffman"
1760 g729_decoder_select="dsputil"
1761 h261_decoder_select="error_resilience mpegvideo"
1762 h261_encoder_select="aandcttables mpegvideoenc"
1763 h263_decoder_select="error_resilience h263_parser mpegvideo"
1764 h263_encoder_select="aandcttables mpegvideoenc"
1765 h263i_decoder_select="h263_decoder"
1766 h263p_encoder_select="h263_encoder"
1767 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1768 h264_decoder_suggest="error_resilience"
1769 huffyuv_decoder_select="dsputil"
1770 huffyuv_encoder_select="dsputil huffman"
1771 iac_decoder_select="dsputil fft mdct sinewin"
1772 imc_decoder_select="dsputil fft mdct sinewin"
1773 indeo3_decoder_select="hpeldsp"
1774 interplay_video_decoder_select="hpeldsp"
1775 jpegls_decoder_select="dsputil golomb hpeldsp"
1776 jpegls_encoder_select="golomb"
1777 jv_decoder_select="dsputil"
1778 lagarith_decoder_select="dsputil"
1779 ljpeg_encoder_select="aandcttables mpegvideoenc"
1780 loco_decoder_select="golomb"
1781 mdec_decoder_select="dsputil error_resilience mpegvideo"
1782 mimic_decoder_select="dsputil hpeldsp"
1783 mjpeg_decoder_select="dsputil hpeldsp"
1784 mjpegb_decoder_select="dsputil hpeldsp"
1785 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1786 mlp_decoder_select="dsputil mlp_parser"
1787 motionpixels_decoder_select="dsputil"
1788 mp1_decoder_select="mpegaudio"
1789 mp1float_decoder_select="mpegaudio"
1790 mp2_decoder_select="mpegaudio"
1791 mp2float_decoder_select="mpegaudio"
1792 mp3_decoder_select="mpegaudio"
1793 mp3adu_decoder_select="mpegaudio"
1794 mp3adufloat_decoder_select="mpegaudio"
1795 mp3float_decoder_select="mpegaudio"
1796 mp3on4_decoder_select="mpegaudio"
1797 mp3on4float_decoder_select="mpegaudio"
1798 mpc7_decoder_select="dsputil mpegaudiodsp"
1799 mpc8_decoder_select="dsputil mpegaudiodsp"
1800 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1801 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1802 mpeg1video_decoder_select="error_resilience mpegvideo"
1803 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1804 mpeg2video_decoder_select="error_resilience mpegvideo"
1805 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1806 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1807 mpeg4_encoder_select="h263_encoder"
1808 msmpeg4v1_decoder_select="h263_decoder"
1809 msmpeg4v2_decoder_select="h263_decoder"
1810 msmpeg4v2_encoder_select="h263_encoder"
1811 msmpeg4v3_decoder_select="h263_decoder"
1812 msmpeg4v3_encoder_select="h263_encoder"
1813 mss2_decoder_select="error_resilience vc1_decoder"
1814 mxpeg_decoder_select="dsputil hpeldsp"
1815 nellymoser_decoder_select="mdct sinewin"
1816 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1817 nuv_decoder_select="dsputil lzo"
1818 png_decoder_select="zlib"
1819 png_encoder_select="dsputil zlib"
1820 prores_decoder_select="dsputil"
1821 prores_encoder_select="dsputil"
1822 qcelp_decoder_select="lsp"
1823 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1824 ra_144_encoder_select="audio_frame_queue lpc"
1825 ralf_decoder_select="golomb"
1826 rtjpeg_decoder_select="dsputil"
1827 rv10_decoder_select="error_resilience h263_decoder"
1828 rv10_encoder_select="h263_encoder"
1829 rv20_decoder_select="error_resilience h263_decoder"
1830 rv20_encoder_select="h263_encoder"
1831 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1832 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1833 shorten_decoder_select="golomb"
1834 sipr_decoder_select="lsp"
1835 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1836 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1837 sonic_decoder_select="golomb"
1838 sonic_encoder_select="golomb"
1839 sonic_ls_encoder_select="golomb"
1840 sp5x_decoder_select="dsputil hpeldsp"
1841 svq1_decoder_select="hpeldsp"
1842 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1843 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1844 svq3_decoder_suggest="error_resilience zlib"
1845 tak_decoder_select="dsputil"
1846 theora_decoder_select="vp3_decoder"
1847 tiff_decoder_suggest="zlib"
1848 tiff_encoder_suggest="zlib"
1849 thp_decoder_select="dsputil hpeldsp"
1850 truehd_decoder_select="mlp_parser"
1851 truemotion2_decoder_select="dsputil"
1852 truespeech_decoder_select="dsputil"
1853 tscc_decoder_select="zlib"
1854 twinvq_decoder_select="mdct lsp sinewin"
1855 utvideo_decoder_select="dsputil"
1856 utvideo_encoder_select="dsputil huffman"
1857 vble_decoder_select="dsputil"
1858 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1859 vc1image_decoder_select="vc1_decoder"
1860 vorbis_decoder_select="mdct"
1861 vorbis_encoder_select="mdct"
1862 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1863 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1864 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1865 vp6a_decoder_select="vp6_decoder"
1866 vp6f_decoder_select="vp6_decoder"
1867 vp8_decoder_select="h264pred videodsp"
1868 wmapro_decoder_select="mdct sinewin"
1869 wmav1_decoder_select="mdct sinewin"
1870 wmav1_encoder_select="mdct sinewin"
1871 wmav2_decoder_select="mdct sinewin"
1872 wmav2_encoder_select="mdct sinewin"
1873 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1874 wmv1_decoder_select="h263_decoder"
1875 wmv1_encoder_select="h263_encoder"
1876 wmv2_decoder_select="h263_decoder videodsp"
1877 wmv2_encoder_select="h263_encoder"
1878 wmv3_decoder_select="vc1_decoder"
1879 wmv3image_decoder_select="wmv3_decoder"
1880 zerocodec_decoder_select="zlib"
1881 zlib_decoder_select="zlib"
1882 zlib_encoder_select="zlib"
1883 zmbv_decoder_select="zlib"
1884 zmbv_encoder_select="zlib"
1885
1886 # hardware accelerators
1887 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1888 dxva2_deps="dxva2api_h"
1889 vaapi_deps="va_va_h"
1890 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1891 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1892 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1893
1894 h263_vaapi_hwaccel_deps="vaapi"
1895 h263_vaapi_hwaccel_select="h263_decoder"
1896 h263_vdpau_hwaccel_deps="vdpau"
1897 h263_vdpau_hwaccel_select="h263_decoder"
1898 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1899 h264_dxva2_hwaccel_deps="dxva2"
1900 h264_dxva2_hwaccel_select="h264_decoder"
1901 h264_vaapi_hwaccel_deps="vaapi"
1902 h264_vaapi_hwaccel_select="h264_decoder"
1903 h264_vda_decoder_deps="vda"
1904 h264_vda_decoder_select="h264_decoder"
1905 h264_vda_hwaccel_deps="vda"
1906 h264_vda_hwaccel_select="h264_decoder"
1907 h264_vdpau_decoder_deps="vdpau"
1908 h264_vdpau_decoder_select="h264_decoder"
1909 h264_vdpau_hwaccel_deps="vdpau"
1910 h264_vdpau_hwaccel_select="h264_decoder"
1911 mpeg_vdpau_decoder_deps="vdpau"
1912 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1913 mpeg1_vdpau_decoder_deps="vdpau"
1914 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1915 mpeg1_vdpau_hwaccel_deps="vdpau"
1916 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1917 mpeg2_crystalhd_decoder_select="crystalhd"
1918 mpeg2_dxva2_hwaccel_deps="dxva2"
1919 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1920 mpeg2_vaapi_hwaccel_deps="vaapi"
1921 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1922 mpeg2_vdpau_hwaccel_deps="vdpau"
1923 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1924 mpeg4_crystalhd_decoder_select="crystalhd"
1925 mpeg4_vaapi_hwaccel_deps="vaapi"
1926 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1927 mpeg4_vdpau_decoder_deps="vdpau"
1928 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1929 mpeg4_vdpau_hwaccel_deps="vdpau"
1930 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1931 msmpeg4_crystalhd_decoder_select="crystalhd"
1932 vc1_crystalhd_decoder_select="crystalhd"
1933 vc1_dxva2_hwaccel_deps="dxva2"
1934 vc1_dxva2_hwaccel_select="vc1_decoder"
1935 vc1_vaapi_hwaccel_deps="vaapi"
1936 vc1_vaapi_hwaccel_select="vc1_decoder"
1937 vc1_vdpau_decoder_deps="vdpau"
1938 vc1_vdpau_decoder_select="vc1_decoder"
1939 vc1_vdpau_hwaccel_deps="vdpau"
1940 vc1_vdpau_hwaccel_select="vc1_decoder"
1941 wmv3_crystalhd_decoder_select="crystalhd"
1942 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1943 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1944 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1945 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1946
1947 # parsers
1948 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1949 mpeg4video_parser_select="error_resilience mpegvideo"
1950 mpegvideo_parser_select="error_resilience mpegvideo"
1951 vc1_parser_select="mpegvideo"
1952
1953 # external libraries
1954 libaacplus_encoder_deps="libaacplus"
1955 libcelt_decoder_deps="libcelt"
1956 libfaac_encoder_deps="libfaac"
1957 libfaac_encoder_select="audio_frame_queue"
1958 libfdk_aac_encoder_deps="libfdk_aac"
1959 libfdk_aac_encoder_select="audio_frame_queue"
1960 libgsm_decoder_deps="libgsm"
1961 libgsm_encoder_deps="libgsm"
1962 libgsm_ms_decoder_deps="libgsm"
1963 libgsm_ms_encoder_deps="libgsm"
1964 libilbc_decoder_deps="libilbc"
1965 libilbc_encoder_deps="libilbc"
1966 libmodplug_demuxer_deps="libmodplug"
1967 libmp3lame_encoder_deps="libmp3lame"
1968 libmp3lame_encoder_select="audio_frame_queue"
1969 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1970 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1971 libopencore_amrnb_encoder_select="audio_frame_queue"
1972 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1973 libopenjpeg_decoder_deps="libopenjpeg"
1974 libopenjpeg_encoder_deps="libopenjpeg"
1975 libopus_decoder_deps="libopus"
1976 libopus_encoder_deps="libopus"
1977 libopus_encoder_select="audio_frame_queue"
1978 libquvi_demuxer_deps="libquvi"
1979 libschroedinger_decoder_deps="libschroedinger"
1980 libschroedinger_encoder_deps="libschroedinger"
1981 libshine_encoder_deps="libshine"
1982 libshine_encoder_select="audio_frame_queue"
1983 libspeex_decoder_deps="libspeex"
1984 libspeex_encoder_deps="libspeex"
1985 libspeex_encoder_select="audio_frame_queue"
1986 libstagefright_h264_decoder_deps="libstagefright_h264"
1987 libtheora_encoder_deps="libtheora"
1988 libtwolame_encoder_deps="libtwolame"
1989 libvo_aacenc_encoder_deps="libvo_aacenc"
1990 libvo_aacenc_encoder_select="audio_frame_queue"
1991 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1992 libvorbis_decoder_deps="libvorbis"
1993 libvorbis_encoder_deps="libvorbis"
1994 libvorbis_encoder_select="audio_frame_queue"
1995 libvpx_vp8_decoder_deps="libvpx"
1996 libvpx_vp8_encoder_deps="libvpx"
1997 libvpx_vp9_decoder_deps="libvpx"
1998 libvpx_vp9_encoder_deps="libvpx"
1999 libx264_encoder_deps="libx264"
2000 libx264rgb_encoder_deps="libx264"
2001 libxavs_encoder_deps="libxavs"
2002 libxvid_encoder_deps="libxvid"
2003 libutvideo_decoder_deps="libutvideo"
2004 libutvideo_encoder_deps="libutvideo"
2005
2006 # demuxers / muxers
2007 ac3_demuxer_select="ac3_parser"
2008 asf_stream_muxer_select="asf_muxer"
2009 avisynth_demuxer_deps="avisynth"
2010 dirac_demuxer_select="dirac_parser"
2011 dts_demuxer_select="dca_parser"
2012 dtshd_demuxer_select="dca_parser"
2013 eac3_demuxer_select="ac3_parser"
2014 f4v_muxer_select="mov_muxer"
2015 flac_demuxer_select="flac_parser"
2016 ipod_muxer_select="mov_muxer"
2017 ismv_muxer_select="mov_muxer"
2018 libnut_demuxer_deps="libnut"
2019 libnut_muxer_deps="libnut"
2020 matroska_audio_muxer_select="matroska_muxer"
2021 matroska_demuxer_suggest="bzlib lzo zlib"
2022 mov_demuxer_suggest="zlib"
2023 mov_muxer_select="rtpenc_chain"
2024 mp3_demuxer_select="mpegaudio_parser"
2025 mp4_muxer_select="mov_muxer"
2026 mpegts_muxer_select="adts_muxer latm_muxer"
2027 mpegtsraw_demuxer_select="mpegts_demuxer"
2028 mxf_d10_muxer_select="mxf_muxer"
2029 ogg_demuxer_select="golomb"
2030 psp_muxer_select="mov_muxer"
2031 rtp_demuxer_select="sdp_demuxer"
2032 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2033 rtsp_demuxer_select="http_protocol rtpdec"
2034 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2035 sap_demuxer_select="sdp_demuxer"
2036 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2037 sdp_demuxer_select="rtpdec"
2038 smoothstreaming_muxer_select="ismv_muxer"
2039 spdif_muxer_select="aac_parser"
2040 tak_demuxer_select="tak_parser"
2041 tg2_muxer_select="mov_muxer"
2042 tgp_muxer_select="mov_muxer"
2043 vobsub_demuxer_select="mpegps_demuxer"
2044 w64_demuxer_deps="wav_demuxer"
2045 w64_muxer_deps="wav_muxer"
2046
2047 # indevs / outdevs
2048 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2049 alsa_outdev_deps="alsa_asoundlib_h"
2050 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2051 caca_outdev_deps="libcaca"
2052 dshow_indev_deps="IBaseFilter"
2053 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2054 dv1394_indev_deps="dv1394 dv_demuxer"
2055 fbdev_indev_deps="linux_fb_h"
2056 iec61883_indev_deps="libiec61883"
2057 jack_indev_deps="jack_jack_h sem_timedwait"
2058 lavfi_indev_deps="avfilter"
2059 libcdio_indev_deps="libcdio"
2060 libdc1394_indev_deps="libdc1394"
2061 libv4l2_indev_deps="libv4l2"
2062 openal_indev_deps="openal"
2063 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2064 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2065 pulse_indev_deps="libpulse"
2066 sdl_outdev_deps="sdl"
2067 sndio_indev_deps="sndio_h"
2068 sndio_outdev_deps="sndio_h"
2069 v4l_indev_deps="linux_videodev_h"
2070 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2071 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2072 vfwcap_indev_extralibs="-lavicap32"
2073 x11grab_indev_deps="x11grab"
2074
2075 # protocols
2076 bluray_protocol_deps="libbluray"
2077 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2078 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2079 ffrtmpcrypt_protocol_select="tcp_protocol"
2080 ffrtmphttp_protocol_deps="!librtmp_protocol"
2081 ffrtmphttp_protocol_select="http_protocol"
2082 gopher_protocol_select="network"
2083 httpproxy_protocol_select="tcp_protocol"
2084 http_protocol_select="tcp_protocol"
2085 https_protocol_select="tls_protocol"
2086 librtmp_protocol_deps="librtmp"
2087 librtmpe_protocol_deps="librtmp"
2088 librtmps_protocol_deps="librtmp"
2089 librtmpt_protocol_deps="librtmp"
2090 librtmpte_protocol_deps="librtmp"
2091 mmsh_protocol_select="http_protocol"
2092 mmst_protocol_select="network"
2093 rtmp_protocol_deps="!librtmp_protocol"
2094 rtmp_protocol_select="tcp_protocol"
2095 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2096 rtmps_protocol_deps="!librtmp_protocol"
2097 rtmps_protocol_select="tls_protocol"
2098 rtmpt_protocol_select="ffrtmphttp_protocol"
2099 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2100 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2101 rtp_protocol_select="udp_protocol"
2102 sctp_protocol_deps="struct_sctp_event_subscribe"
2103 sctp_protocol_select="network"
2104 srtp_protocol_select="rtp_protocol"
2105 tcp_protocol_select="network"
2106 tls_protocol_deps_any="openssl gnutls"
2107 tls_protocol_select="tcp_protocol"
2108 udp_protocol_select="network"
2109
2110 # filters
2111 aconvert_filter_deps="swresample"
2112 amovie_filter_deps="avcodec avformat"
2113 aresample_filter_deps="swresample"
2114 ass_filter_deps="libass"
2115 asyncts_filter_deps="avresample"
2116 atempo_filter_deps="avcodec rdft"
2117 blackframe_filter_deps="gpl"
2118 boxblur_filter_deps="gpl"
2119 colormatrix_filter_deps="gpl"
2120 cropdetect_filter_deps="gpl"
2121 delogo_filter_deps="gpl"
2122 deshake_filter_deps="avcodec"
2123 deshake_filter_select="dsputil"
2124 drawtext_filter_deps="libfreetype"
2125 ebur128_filter_deps="gpl"
2126 flite_filter_deps="libflite"
2127 frei0r_filter_deps="frei0r dlopen"
2128 frei0r_filter_extralibs='$ldl'
2129 frei0r_src_filter_deps="frei0r dlopen"
2130 frei0r_src_filter_extralibs='$ldl'
2131 geq_filter_deps="gpl"
2132 histeq_filter_deps="gpl"
2133 hqdn3d_filter_deps="gpl"
2134 hue_filter_deps="gpl"
2135 interlace_filter_deps="gpl"
2136 kerndeint_filter_deps="gpl"
2137 movie_filter_deps="avcodec avformat"
2138 mp_filter_deps="gpl avcodec swscale inline_asm"
2139 mpdecimate_filter_deps="gpl avcodec"
2140 mptestsrc_filter_deps="gpl"
2141 negate_filter_deps="lut_filter"
2142 noise_filter_deps="gpl"
2143 resample_filter_deps="avresample"
2144 ocv_filter_deps="libopencv"
2145 pan_filter_deps="swresample"
2146 pp_filter_deps="gpl postproc"
2147 removelogo_filter_deps="avcodec avformat swscale"
2148 scale_filter_deps="swscale"
2149 smartblur_filter_deps="gpl swscale"
2150 showspectrum_filter_deps="avcodec rdft"
2151 stereo3d_filter_deps="gpl"
2152 subtitles_filter_deps="avformat avcodec libass"
2153 super2xsai_filter_deps="gpl"
2154 tinterlace_filter_deps="gpl"
2155 yadif_filter_deps="gpl"
2156 pixfmts_super2xsai_test_deps="super2xsai_filter"
2157 tinterlace_merge_test_deps="tinterlace_filter"
2158 tinterlace_pad_test_deps="tinterlace_filter"
2159
2160 # libraries
2161 avcodec_deps="avutil"
2162 avdevice_deps="avutil avcodec avformat"
2163 avfilter_deps="avutil"
2164 avformat_deps="avutil avcodec"
2165 avresample_deps="avutil"
2166 postproc_deps="avutil gpl"
2167 swscale_deps="avutil"
2168
2169 # programs
2170 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2171 ffmpeg_select="format_filter aformat_filter
2172                setpts_filter null_filter anull_filter"
2173 ffplay_deps="avcodec avformat swscale swresample sdl"
2174 ffplay_select="rdft crop_filter"
2175 ffprobe_deps="avcodec avformat"
2176 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2177 ffserver_extralibs='$ldl'
2178
2179 # documentation
2180 podpages_deps="perl"
2181 manpages_deps="perl pod2man"
2182 htmlpages_deps="texi2html"
2183 txtpages_deps="makeinfo"
2184 doc_deps_any="manpages htmlpages podpages txtpages"
2185
2186 # default parameters
2187
2188 logfile="config.log"
2189
2190 # installation paths
2191 prefix_default="/usr/local"
2192 bindir_default='${prefix}/bin'
2193 datadir_default='${prefix}/share/ffmpeg'
2194 incdir_default='${prefix}/include'
2195 libdir_default='${prefix}/lib'
2196 mandir_default='${prefix}/share/man'
2197 shlibdir_default="$libdir_default"
2198
2199 # toolchain
2200 ar_default="ar"
2201 cc_default="gcc"
2202 cxx_default="g++"
2203 host_cc_default="gcc"
2204 cp_f="cp -f"
2205 install="install"
2206 ln_s="ln -s -f"
2207 nm_default="nm -g"
2208 objformat="elf"
2209 pkg_config_default=pkg-config
2210 ranlib="ranlib"
2211 strip_default="strip"
2212 yasmexe_default="yasm"
2213
2214 nogas=":"
2215
2216 # machine
2217 arch_default=$(uname -m)
2218 cpu="generic"
2219
2220 # OS
2221 target_os_default=$(tolower $(uname -s))
2222 host_os=$target_os_default
2223
2224 # configurable options
2225 enable $PROGRAM_LIST
2226 enable $DOCUMENT_LIST
2227 enable $(filter_out avresample $LIBRARY_LIST)
2228 enable stripping
2229
2230 enable asm
2231 enable debug
2232 enable doc
2233 enable optimizations
2234 enable runtime_cpudetect
2235 enable safe_bitstream_reader
2236 enable static
2237 enable swscale_alpha
2238
2239 # By default, enable only those hwaccels that have no external dependencies.
2240 enable dxva2 vdpau
2241
2242 # build settings
2243 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2244 FFSERVERLDFLAGS=-Wl,-E
2245 LIBPREF="lib"
2246 LIBSUF=".a"
2247 FULLNAME='$(NAME)$(BUILDSUF)'
2248 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2249 SLIBPREF="lib"
2250 SLIBSUF=".so"
2251 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2252 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2253 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2254 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2255 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2256 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2257
2258 asflags_filter=echo
2259 cflags_filter=echo
2260 ldflags_filter=echo
2261
2262 AS_C='-c'
2263 AS_O='-o $@'
2264 CC_C='-c'
2265 CC_E='-E -o $@'
2266 CC_O='-o $@'
2267 CXX_C='-c'
2268 CXX_O='-o $@'
2269 LD_O='-o $@'
2270 LD_LIB='-l%'
2271 LD_PATH='-L'
2272 HOSTCC_C='-c'
2273 HOSTCC_O='-o $@'
2274 HOSTLD_O='-o $@'
2275
2276 host_cflags='-O3 -g'
2277 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2278 host_libs='-lm'
2279 host_cflags_filter=echo
2280 host_ldflags_filter=echo
2281
2282 target_path='$(CURDIR)'
2283
2284 # since the object filename is not given with the -MM flag, the compiler
2285 # is only able to print the basename, and we must add the path ourselves
2286 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2287 DEPFLAGS='-MM'
2288
2289 # find source path
2290 if test -f configure; then
2291     source_path=.
2292 else
2293     source_path=$(cd $(dirname "$0"); pwd)
2294     echo "$source_path" | grep -q '[[:blank:]]' &&
2295         die "Out of tree builds are impossible with whitespace in source path."
2296     test -e "$source_path/config.h" &&
2297         die "Out of tree builds are impossible with config.h in source dir."
2298 fi
2299
2300 for v in "$@"; do
2301     r=${v#*=}
2302     l=${v%"$r"}
2303     r=$(sh_quote "$r")
2304     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2305 done
2306
2307 find_things(){
2308     thing=$1
2309     pattern=$2
2310     file=$source_path/$3
2311     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2312 }
2313
2314 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2315 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2316 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2317 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2318 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2319 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2320 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2321 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2322 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2323 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2324 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2325
2326 ALL_COMPONENTS="
2327     $BSF_LIST
2328     $DECODER_LIST
2329     $DEMUXER_LIST
2330     $ENCODER_LIST
2331     $FILTER_LIST
2332     $HWACCEL_LIST
2333     $INDEV_LIST
2334     $MUXER_LIST
2335     $OUTDEV_LIST
2336     $PARSER_LIST
2337     $PROTOCOL_LIST
2338 "
2339
2340 for n in $COMPONENT_LIST; do
2341     v=$(toupper ${n%s})_LIST
2342     eval enable \$$v
2343     eval ${n}_if_any="\$$v"
2344 done
2345
2346 enable $ARCH_EXT_LIST
2347
2348 die_unknown(){
2349     echo "Unknown option \"$1\"."
2350     echo "See $0 --help for available options."
2351     exit 1
2352 }
2353
2354 print_3_columns() {
2355     cat | tr ' ' '\n' | sort | pr -r -3 -t
2356 }
2357
2358 show_list() {
2359     suffix=_$1
2360     shift
2361     echo $* | sed s/$suffix//g | print_3_columns
2362     exit 0
2363 }
2364
2365 rand_list(){
2366     IFS=', '
2367     set -- $*
2368     unset IFS
2369     for thing; do
2370         comp=${thing%:*}
2371         prob=${thing#$comp}
2372         prob=${prob#:}
2373         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2374         echo "prob ${prob:-0.5}"
2375         printf '%s\n' $comp
2376     done
2377 }
2378
2379 do_random(){
2380     action=$1
2381     shift
2382     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2383     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2384 }
2385
2386 for opt do
2387     optval="${opt#*=}"
2388     case "$opt" in
2389         --extra-ldflags=*)
2390             add_ldflags $optval
2391         ;;
2392         --extra-libs=*)
2393             add_extralibs $optval
2394         ;;
2395         --disable-devices)
2396             disable $INDEV_LIST $OUTDEV_LIST
2397         ;;
2398         --enable-debug=*)
2399             debuglevel="$optval"
2400         ;;
2401         --disable-programs)
2402             disable $PROGRAM_LIST
2403         ;;
2404         --disable-everything)
2405             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2406         ;;
2407         --disable-all)
2408             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2409             disable $LIBRARY_LIST $PROGRAM_LIST doc
2410         ;;
2411         --enable-random|--disable-random)
2412             action=${opt%%-random}
2413             do_random ${action#--} $COMPONENT_LIST
2414         ;;
2415         --enable-random=*|--disable-random=*)
2416             action=${opt%%-random=*}
2417             do_random ${action#--} $optval
2418         ;;
2419         --enable-*=*|--disable-*=*)
2420             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2421             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2422             eval list=\$$(toupper $thing)_LIST
2423             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2424             list=$(filter "$name" $list)
2425             [ "$list" = "" ] && warn "Option $opt did not match anything"
2426             $action $list
2427         ;;
2428         --enable-?*|--disable-?*)
2429             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2430             if is_in $option $COMPONENT_LIST; then
2431                 test $action = disable && action=unset
2432                 eval $action \$$(toupper ${option%s})_LIST
2433             elif is_in $option $CMDLINE_SELECT; then
2434                 $action $option
2435             else
2436                 die_unknown $opt
2437             fi
2438         ;;
2439         --list-*)
2440             NAME="${opt#--list-}"
2441             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2442             NAME=${NAME%s}
2443             eval show_list $NAME \$$(toupper $NAME)_LIST
2444         ;;
2445         --help|-h) show_help
2446         ;;
2447         --fatal-warnings) enable fatal_warnings
2448         ;;
2449         *)
2450             optname="${opt%%=*}"
2451             optname="${optname#--}"
2452             optname=$(echo "$optname" | sed 's/-/_/g')
2453             if is_in $optname $CMDLINE_SET; then
2454                 eval $optname='$optval'
2455             elif is_in $optname $CMDLINE_APPEND; then
2456                 append $optname "$optval"
2457             else
2458                 die_unknown $opt
2459             fi
2460         ;;
2461     esac
2462 done
2463
2464 disabled logging && logfile=/dev/null
2465
2466 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2467 set >> $logfile
2468
2469 test -n "$cross_prefix" && enable cross_compile
2470
2471 if enabled cross_compile; then
2472     test -n "$arch" && test -n "$target_os" ||
2473         die "Must specify target arch and OS when cross-compiling"
2474 fi
2475
2476 ar_default="${cross_prefix}${ar_default}"
2477 cc_default="${cross_prefix}${cc_default}"
2478 cxx_default="${cross_prefix}${cxx_default}"
2479 nm_default="${cross_prefix}${nm_default}"
2480 pkg_config_default="${cross_prefix}${pkg_config_default}"
2481 ranlib="${cross_prefix}${ranlib}"
2482 strip_default="${cross_prefix}${strip_default}"
2483
2484 sysinclude_default="${sysroot}/usr/include"
2485
2486 case "$toolchain" in
2487     clang-asan)
2488         cc_default="clang"
2489         add_cflags  -fsanitize=address
2490         add_ldflags -fsanitize=address
2491     ;;
2492     clang-tsan)
2493         cc_default="clang"
2494         add_cflags  -fsanitize=thread -pie
2495         add_ldflags -fsanitize=thread -pie
2496     ;;
2497     msvc)
2498         cc_default="c99wrap cl"
2499         ld_default="c99wrap link"
2500         nm_default="dumpbin -symbols"
2501         ar_default="lib"
2502         target_os_default="win32"
2503     ;;
2504     gcov)
2505         add_cflags  -fprofile-arcs -ftest-coverage
2506         add_ldflags -fprofile-arcs -ftest-coverage
2507     ;;
2508     ?*)
2509         die "Unknown toolchain $toolchain"
2510     ;;
2511 esac
2512
2513 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2514 enabled cross_compile || host_cc_default=$cc
2515 set_default host_cc
2516
2517 if ! $pkg_config --version >/dev/null 2>&1; then
2518     warn "$pkg_config not found, library detection may fail."
2519     pkg_config=false
2520 fi
2521
2522 exesuf() {
2523     case $1 in
2524         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2525     esac
2526 }
2527
2528 EXESUF=$(exesuf $target_os)
2529 HOSTEXESUF=$(exesuf $host_os)
2530
2531 # set temporary file name
2532 : ${TMPDIR:=$TEMPDIR}
2533 : ${TMPDIR:=$TMP}
2534 : ${TMPDIR:=/tmp}
2535
2536 if ! check_cmd mktemp -u XXXXXX; then
2537     # simple replacement for missing mktemp
2538     # NOT SAFE FOR GENERAL USE
2539     mktemp(){
2540         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2541     }
2542 fi
2543
2544 tmpfile(){
2545     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2546         (set -C; exec > $tmp) 2>/dev/null ||
2547         die "Unable to create temporary file in $TMPDIR."
2548     append TMPFILES $tmp
2549     eval $1=$tmp
2550 }
2551
2552 trap 'rm -f -- $TMPFILES' EXIT
2553
2554 tmpfile TMPASM .asm
2555 tmpfile TMPC   .c
2556 tmpfile TMPCPP .cpp
2557 tmpfile TMPE   $EXESUF
2558 tmpfile TMPH   .h
2559 tmpfile TMPO   .o
2560 tmpfile TMPS   .S
2561 tmpfile TMPSH  .sh
2562 tmpfile TMPV   .ver
2563
2564 unset -f mktemp
2565
2566 chmod +x $TMPE
2567
2568 # make sure we can execute files in $TMPDIR
2569 cat > $TMPSH 2>> $logfile <<EOF
2570 #! /bin/sh
2571 EOF
2572 chmod +x $TMPSH >> $logfile 2>&1
2573 if ! $TMPSH >> $logfile 2>&1; then
2574     cat <<EOF
2575 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2576 variable to another directory and make sure that it is not mounted noexec.
2577 EOF
2578     die "Sanity test failed."
2579 fi
2580
2581 ccc_flags(){
2582     for flag; do
2583         case $flag in
2584             -std=c99)           echo -c99                       ;;
2585             -mcpu=*)            echo -arch ${flag#*=}           ;;
2586             -mieee)             echo -ieee                      ;;
2587             -O*|-fast)          echo $flag                      ;;
2588             -fno-math-errno)    echo -assume nomath_errno       ;;
2589             -g)                 echo -g3                        ;;
2590             -Wall)              echo -msg_enable level2         ;;
2591             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2592             -Wl,*)              echo $flag                      ;;
2593             -f*|-W*)                                            ;;
2594             *)                  echo $flag                      ;;
2595         esac
2596    done
2597 }
2598
2599 msvc_flags(){
2600     for flag; do
2601         case $flag in
2602             -fomit-frame-pointer) echo -Oy ;;
2603             -g)                   echo -Z7 ;;
2604             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2605                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2606                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2607                                        -wd4554 \
2608                                        -wd4996 -wd4273 ;;
2609             -std=c99)             ;;
2610             -fno-math-errno)      ;;
2611             -fno-common)          ;;
2612             -fno-signed-zeros)    ;;
2613             -fPIC)                ;;
2614             -lz)                  echo zlib.lib ;;
2615             -lavifil32)           echo vfw32.lib ;;
2616             -lavicap32)           echo vfw32.lib user32.lib ;;
2617             -l*)                  echo ${flag#-l}.lib ;;
2618             *)                    echo $flag ;;
2619         esac
2620     done
2621 }
2622
2623 pgi_flags(){
2624     for flag; do
2625         case $flag in
2626             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2627             -fomit-frame-pointer) echo -Mnoframe ;;
2628             -g)                   echo -gopt ;;
2629             *)                    echo $flag ;;
2630         esac
2631     done
2632 }
2633
2634 suncc_flags(){
2635     for flag; do
2636         case $flag in
2637             -march=*|-mcpu=*)
2638                 case "${flag#*=}" in
2639                     native)                   echo -xtarget=native       ;;
2640                     v9|niagara)               echo -xarch=sparc          ;;
2641                     ultrasparc)               echo -xarch=sparcvis       ;;
2642                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2643                     i586|pentium)             echo -xchip=pentium        ;;
2644                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2645                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2646                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2647                     pentium4*)          echo -xtarget=pentium4           ;;
2648                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2649                     *-sse3)             echo -xarch=sse3                 ;;
2650                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2651                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2652                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2653                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2654                     bdver*)                   echo -xarch=avx            ;;
2655                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2656                     k8|opteron|athlon64|athlon-fx)
2657                                               echo -xarch=sse2a          ;;
2658                     athlon*)                  echo -xarch=pentium_proa   ;;
2659                 esac
2660                 ;;
2661             -std=c99)             echo -xc99              ;;
2662             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2663             -fPIC)                echo -KPIC -xcode=pic32 ;;
2664             -W*,*)                echo $flag              ;;
2665             -f*-*|-W*|-mimpure-text)                      ;;
2666             -shared)              echo -G                 ;;
2667             *)                    echo $flag              ;;
2668         esac
2669     done
2670 }
2671
2672 tms470_flags(){
2673     for flag; do
2674         case $flag in
2675             -march=*|-mcpu=*)
2676                 case "${flag#*=}" in
2677                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2678                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2679                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2680                     armv6*|arm11*)          echo -mv=6   ;;
2681                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2682                                             echo -mv=5e  ;;
2683                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2684                 esac
2685                 ;;
2686             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2687             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2688             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2689             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2690             -msoft-float)   echo --float_support=vfplib       ;;
2691             -O[0-3]|-mf=*)  echo $flag                        ;;
2692             -g)             echo -g -mn                       ;;
2693             -pds=*)         echo $flag                        ;;
2694             -D*|-I*)        echo $flag                        ;;
2695             --gcc|--abi=*)  echo $flag                        ;;
2696             -me)            echo $flag                        ;;
2697         esac
2698     done
2699 }
2700
2701 probe_cc(){
2702     pfx=$1
2703     _cc=$2
2704
2705     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2706     unset _ld_o _ldflags _ld_lib _ld_path
2707     unset _depflags _DEPCMD _DEPFLAGS
2708     _flags_filter=echo
2709
2710     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2711         _type=llvm_gcc
2712         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2713         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2714         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2715         _cflags_speed='-O3'
2716         _cflags_size='-Os'
2717     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2718         _type=gcc
2719         gcc_version=$($_cc --version | head -n1)
2720         gcc_basever=$($_cc -dumpversion)
2721         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2722         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2723         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2724         if ! $_cc -dumpversion | grep -q '^2\.'; then
2725             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2726         fi
2727         _cflags_speed='-O3'
2728         _cflags_size='-Os'
2729     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2730         _type=icc
2731         _ident=$($_cc --version | head -n1)
2732         _depflags='-MMD'
2733         _cflags_speed='-O3'
2734         _cflags_size='-Os'
2735         _cflags_noopt='-O1'
2736     elif $_cc -v 2>&1 | grep -q xlc; then
2737         _type=xlc
2738         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2739         _cflags_speed='-O5'
2740         _cflags_size='-O5 -qcompact'
2741     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2742         _type=ccc
2743         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2744         _DEPFLAGS='-M'
2745         _cflags_speed='-fast'
2746         _cflags_size='-O1'
2747         _flags_filter=ccc_flags
2748     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2749         test -d "$sysroot" || die "No valid sysroot specified."
2750         _type=armcc
2751         _ident=$($_cc --vsn | head -n1)
2752         armcc_conf="$PWD/armcc.conf"
2753         $_cc --arm_linux_configure                 \
2754              --arm_linux_config_file="$armcc_conf" \
2755              --configure_sysroot="$sysroot"        \
2756              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2757              die "Error creating armcc configuration file."
2758         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2759         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2760         as_default="${cross_prefix}gcc"
2761         _depflags='-MMD'
2762         _cflags_speed='-O3'
2763         _cflags_size='-Os'
2764     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2765         _type=tms470
2766         _ident=$($_cc -version | head -n1 | tr -s ' ')
2767         _flags='--gcc --abi=eabi -me'
2768         _cc_e='-ppl -fe=$@'
2769         _cc_o='-fe=$@'
2770         _depflags='-ppa -ppd=$(@:.o=.d)'
2771         _cflags_speed='-O3 -mf=5'
2772         _cflags_size='-O3 -mf=2'
2773         _flags_filter=tms470_flags
2774     elif $_cc -v 2>&1 | grep -q clang; then
2775         _type=clang
2776         _ident=$($_cc --version | head -n1)
2777         _depflags='-MMD'
2778         _cflags_speed='-O3'
2779         _cflags_size='-Os'
2780     elif $_cc -V 2>&1 | grep -q Sun; then
2781         _type=suncc
2782         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2783         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2784         _DEPFLAGS='-xM1 -xc99'
2785         _ldflags='-std=c99'
2786         _cflags_speed='-O5'
2787         _cflags_size='-O5 -xspace'
2788         _flags_filter=suncc_flags
2789     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2790         _type=pathscale
2791         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2792         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2793         _cflags_speed='-O2'
2794         _cflags_size='-Os'
2795         _flags_filter='filter_out -Wdisabled-optimization'
2796     elif $_cc -v 2>&1 | grep -q Open64; then
2797         _type=open64
2798         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2799         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2800         _cflags_speed='-O2'
2801         _cflags_size='-Os'
2802         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2803     elif $_cc -V 2>&1 | grep -q Portland; then
2804         _type=pgi
2805         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2806         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2807         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2808         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2809         _cflags_noopt="-O"
2810         _flags_filter=pgi_flags
2811     elif $_cc 2>&1 | grep -q Microsoft; then
2812         _type=msvc
2813         _ident=$($cc 2>&1 | head -n1)
2814         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2815         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2816         _cflags_speed="-O2"
2817         _cflags_size="-O1"
2818         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2819         if $_cc 2>&1 | grep -q Linker; then
2820             _ld_o='-out $@'
2821         else
2822             _ld_o='-Fe$@'
2823         fi
2824         _cc_o='-Fo $@'
2825         _cc_e='-P -Fi $@'
2826         _flags_filter=msvc_flags
2827         _ld_lib='lib%.a'
2828         _ld_path='-libpath:'
2829         _flags='-nologo'
2830         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2831         if [ $pfx = hostcc ]; then
2832             append _cflags -Dsnprintf=_snprintf
2833         fi
2834         disable stripping
2835     fi
2836
2837     eval ${pfx}_type=\$_type
2838     eval ${pfx}_ident=\$_ident
2839 }
2840
2841 set_ccvars(){
2842     eval ${1}_C=\${_cc_c-\${${1}_C}}
2843     eval ${1}_E=\${_cc_e-\${${1}_E}}
2844     eval ${1}_O=\${_cc_o-\${${1}_O}}
2845
2846     if [ -n "$_depflags" ]; then
2847         eval ${1}_DEPFLAGS=\$_depflags
2848     else
2849         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2850         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2851         eval DEP${1}FLAGS=\$_flags
2852     fi
2853 }
2854
2855 probe_cc cc "$cc"
2856 cflags_filter=$_flags_filter
2857 cflags_speed=$_cflags_speed
2858 cflags_size=$_cflags_size
2859 cflags_noopt=$_cflags_noopt
2860 add_cflags $_flags $_cflags
2861 cc_ldflags=$_ldflags
2862 set_ccvars CC
2863
2864 probe_cc hostcc "$host_cc"
2865 host_cflags_filter=$_flags_filter
2866 add_host_cflags  $_flags $_cflags
2867 set_ccvars HOSTCC
2868
2869 test -n "$cc_type" && enable $cc_type ||
2870     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2871
2872 : ${as_default:=$cc}
2873 : ${dep_cc_default:=$cc}
2874 : ${ld_default:=$cc}
2875 : ${host_ld_default:=$host_cc}
2876 set_default ar as dep_cc ld host_ld
2877
2878 probe_cc as "$as"
2879 asflags_filter=$_flags_filter
2880 add_asflags $_flags $_cflags
2881 set_ccvars AS
2882
2883 probe_cc ld "$ld"
2884 ldflags_filter=$_flags_filter
2885 add_ldflags $_flags $_ldflags
2886 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2887 LD_O=${_ld_o-$LD_O}
2888 LD_LIB=${_ld_lib-$LD_LIB}
2889 LD_PATH=${_ld_path-$LD_PATH}
2890
2891 probe_cc hostld "$host_ld"
2892 host_ldflags_filter=$_flags_filter
2893 add_host_ldflags $_flags $_ldflags
2894 HOSTLD_O=${_ld_o-$HOSTLD_O}
2895
2896 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2897     probe_cc depcc "$dep_cc"
2898     CCDEP=${_DEPCMD:-$DEPCMD}
2899     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2900     DEPCCFLAGS=$_flags
2901 fi
2902
2903 if $ar 2>&1 | grep -q Microsoft; then
2904     arflags="-nologo"
2905     ar_o='-out:$@'
2906 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2907     arflags="rq"
2908     ar_o='$@'
2909 else
2910     arflags="rc"
2911     ar_o='$@'
2912 fi
2913
2914 add_cflags $extra_cflags
2915 add_cxxflags $extra_cxxflags
2916 add_asflags $extra_cflags
2917
2918 if test -n "$sysroot"; then
2919     case "$cc_type" in
2920         gcc|llvm_gcc|clang)
2921             add_cppflags --sysroot="$sysroot"
2922             add_ldflags --sysroot="$sysroot"
2923         ;;
2924         tms470)
2925             add_cppflags -I"$sysinclude"
2926             add_ldflags  --sysroot="$sysroot"
2927         ;;
2928     esac
2929 fi
2930
2931 if test "$cpu" = host; then
2932     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2933
2934     case "$cc_type" in
2935         gcc|llvm_gcc)
2936             check_native(){
2937                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2938                 sed -n "/cc1.*$1=/{
2939                             s/.*$1=\\([^ ]*\\).*/\\1/
2940                             p
2941                             q
2942                         }" $TMPE
2943             }
2944             cpu=$(check_native -march || check_native -mcpu)
2945         ;;
2946     esac
2947
2948     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2949 fi
2950
2951 # Deal with common $arch aliases
2952 case "$arch" in
2953     aarch64|arm64)
2954         arch="aarch64"
2955     ;;
2956     arm*|iPad*)
2957         arch="arm"
2958     ;;
2959     mips*|IP*)
2960         arch="mips"
2961     ;;
2962     parisc*|hppa*)
2963         arch="parisc"
2964     ;;
2965     "Power Macintosh"|ppc*|powerpc*)
2966         arch="ppc"
2967     ;;
2968     s390|s390x)
2969         arch="s390"
2970     ;;
2971     sh4|sh)
2972         arch="sh4"
2973     ;;
2974     sun4u|sparc*)
2975         arch="sparc"
2976     ;;
2977     tilegx|tile-gx)
2978         arch="tilegx"
2979     ;;
2980     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2981         arch="x86"
2982     ;;
2983 esac
2984
2985 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2986 enable $arch
2987
2988 # Add processor-specific flags
2989 if enabled aarch64; then
2990
2991     case $cpu in
2992         armv*)
2993             cpuflags="-march=$cpu"
2994         ;;
2995         *)
2996             cpuflags="-mcpu=$cpu"
2997         ;;
2998     esac
2999
3000 elif enabled alpha; then
3001
3002     cpuflags="-mcpu=$cpu"
3003
3004 elif enabled arm; then
3005
3006     check_arm_arch() {
3007         check_cpp_condition stddef.h \
3008             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3009             $cpuflags
3010     }
3011
3012     probe_arm_arch() {
3013         if   check_arm_arch 4;        then echo armv4;
3014         elif check_arm_arch 4T;       then echo armv4t;
3015         elif check_arm_arch 5;        then echo armv5;
3016         elif check_arm_arch 5E;       then echo armv5e;
3017         elif check_arm_arch 5T;       then echo armv5t;
3018         elif check_arm_arch 5TE;      then echo armv5te;
3019         elif check_arm_arch 5TEJ;     then echo armv5te;
3020         elif check_arm_arch 6;        then echo armv6;
3021         elif check_arm_arch 6J;       then echo armv6j;
3022         elif check_arm_arch 6K;       then echo armv6k;
3023         elif check_arm_arch 6Z;       then echo armv6z;
3024         elif check_arm_arch 6ZK;      then echo armv6zk;
3025         elif check_arm_arch 6T2;      then echo armv6t2;
3026         elif check_arm_arch 7;        then echo armv7;
3027         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3028         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3029         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3030         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3031         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3032         fi
3033     }
3034
3035     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3036
3037     case $cpu in
3038         armv*)
3039             cpuflags="-march=$cpu"
3040             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3041         ;;
3042         *)
3043             cpuflags="-mcpu=$cpu"
3044             case $cpu in
3045                 cortex-a*)                               subarch=armv7a  ;;
3046                 cortex-r*)                               subarch=armv7r  ;;
3047                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3048                 arm11*)                                  subarch=armv6   ;;
3049                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3050                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3051                 *)                             subarch=$(probe_arm_arch) ;;
3052             esac
3053         ;;
3054     esac
3055
3056     case "$subarch" in
3057         armv5t*)    enable fast_clz                ;;
3058         armv[6-8]*) enable fast_clz fast_unaligned ;;
3059     esac
3060
3061 elif enabled avr32; then
3062
3063     case $cpu in
3064         ap7[02]0[0-2])
3065             subarch="avr32_ap"
3066             cpuflags="-mpart=$cpu"
3067         ;;
3068         ap)
3069             subarch="avr32_ap"
3070             cpuflags="-march=$cpu"
3071         ;;
3072         uc3[ab]*)
3073             subarch="avr32_uc"
3074             cpuflags="-mcpu=$cpu"
3075         ;;
3076         uc)
3077             subarch="avr32_uc"
3078             cpuflags="-march=$cpu"
3079         ;;
3080     esac
3081
3082 elif enabled bfin; then
3083
3084     cpuflags="-mcpu=$cpu"
3085
3086 elif enabled mips; then
3087
3088     cpuflags="-march=$cpu"
3089
3090     case $cpu in
3091         24kc)
3092             disable mipsfpu
3093             disable mipsdspr1
3094             disable mipsdspr2
3095         ;;
3096         24kf*)
3097             disable mipsdspr1
3098             disable mipsdspr2
3099         ;;
3100         24kec|34kc|1004kc)
3101             disable mipsfpu
3102             disable mipsdspr2
3103         ;;
3104         24kef*|34kf*|1004kf*)
3105             disable mipsdspr2
3106         ;;
3107         74kc)
3108             disable mipsfpu
3109         ;;
3110     esac
3111
3112 elif enabled ppc; then
3113
3114     case $(tolower $cpu) in
3115         601|ppc601|powerpc601)
3116             cpuflags="-mcpu=601"
3117             disable altivec
3118         ;;
3119         603*|ppc603*|powerpc603*)
3120             cpuflags="-mcpu=603"
3121             disable altivec
3122         ;;
3123         604*|ppc604*|powerpc604*)
3124             cpuflags="-mcpu=604"
3125             disable altivec
3126         ;;
3127         g3|75*|ppc75*|powerpc75*)
3128             cpuflags="-mcpu=750"
3129             disable altivec
3130         ;;
3131         g4|745*|ppc745*|powerpc745*)
3132             cpuflags="-mcpu=7450"
3133         ;;
3134         74*|ppc74*|powerpc74*)
3135             cpuflags="-mcpu=7400"
3136         ;;
3137         g5|970|ppc970|powerpc970)
3138             cpuflags="-mcpu=970"
3139         ;;
3140         power[3-7]*)
3141             cpuflags="-mcpu=$cpu"
3142         ;;
3143         cell)
3144             cpuflags="-mcpu=cell"
3145             enable ldbrx
3146         ;;
3147         e500mc)
3148             cpuflags="-mcpu=e500mc"
3149             disable altivec
3150         ;;
3151         e500v2)
3152             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3153             disable altivec
3154         ;;
3155         e500)
3156             cpuflags="-mcpu=8540 -mhard-float"
3157             disable altivec
3158         ;;
3159     esac
3160
3161 elif enabled sparc; then
3162
3163     case $cpu in
3164         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3165             cpuflags="-mcpu=$cpu"
3166             disable vis
3167         ;;
3168         ultrasparc*|niagara[234])
3169             cpuflags="-mcpu=$cpu"
3170         ;;
3171     esac
3172
3173 elif enabled x86; then
3174
3175     case $cpu in
3176         i[345]86|pentium)
3177             cpuflags="-march=$cpu"
3178             disable mmx
3179         ;;
3180         # targets that do NOT support conditional mov (cmov)
3181         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3182             cpuflags="-march=$cpu"
3183             disable cmov
3184         ;;
3185         # targets that do support conditional mov (cmov)
3186         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3187             cpuflags="-march=$cpu"
3188             enable cmov
3189             enable fast_cmov
3190         ;;
3191         # targets that do support conditional mov but on which it's slow
3192         pentium4|pentium4m|prescott|nocona)
3193             cpuflags="-march=$cpu"
3194             enable cmov
3195             disable fast_cmov
3196         ;;
3197     esac
3198
3199 fi
3200
3201 if [ "$cpu" != generic ]; then
3202     add_cflags  $cpuflags
3203     add_asflags $cpuflags
3204 fi
3205
3206 # compiler sanity check
3207 check_exec <<EOF
3208 int main(void){ return 0; }
3209 EOF
3210 if test "$?" != 0; then
3211     echo "$cc is unable to create an executable file."
3212     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3213         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3214         echo "Only do this if you know what cross compiling means."
3215     fi
3216     die "C compiler test failed."
3217 fi
3218
3219 add_cppflags -D_ISOC99_SOURCE
3220 add_cxxflags -D__STDC_CONSTANT_MACROS
3221 check_cflags -std=c99
3222 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3223 #include <stdlib.h>
3224 EOF
3225 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3226 #include <stdlib.h>
3227 EOF
3228
3229 check_host_cflags -std=c99
3230 check_host_cflags -Wall
3231
3232 check_64bit(){
3233     arch32=$1
3234     arch64=$2
3235     expr=$3
3236     check_code cc "" "int test[2*($expr) - 1]" &&
3237         subarch=$arch64 || subarch=$arch32
3238 }
3239
3240 case "$arch" in
3241     aarch64|alpha|ia64)
3242         spic=$shared
3243     ;;
3244     mips)
3245         check_64bit mips mips64 '_MIPS_SIM > 1'
3246         spic=$shared
3247     ;;
3248     parisc)
3249         check_64bit parisc parisc64 'sizeof(void *) > 4'
3250         spic=$shared
3251     ;;
3252     ppc)
3253         check_64bit ppc ppc64 'sizeof(void *) > 4'
3254         spic=$shared
3255     ;;
3256     sparc)
3257         check_64bit sparc sparc64 'sizeof(void *) > 4'
3258         spic=$shared
3259     ;;
3260     x86)
3261         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3262         if test "$subarch" = "x86_64"; then
3263             spic=$shared
3264         fi
3265     ;;
3266     ppc)
3267         check_cc <<EOF && subarch="ppc64"
3268         int test[(int)sizeof(char*) - 7];
3269 EOF
3270     ;;
3271 esac
3272
3273 enable $subarch
3274 enabled spic && enable pic
3275
3276 # OS specific
3277 case $target_os in
3278     haiku)
3279         prefix_default="/boot/common"
3280         network_extralibs="-lnetwork"
3281         host_libs=
3282         ;;
3283     sunos)
3284         FFSERVERLDFLAGS=""
3285         SHFLAGS='-shared -Wl,-h,$$(@F)'
3286         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3287         network_extralibs="-lsocket -lnsl"
3288         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3289         # When using suncc to build, the Solaris linker will mark
3290         # an executable with each instruction set encountered by
3291         # the Solaris assembler.  As our libraries contain their own
3292         # guards for processor-specific code, instead suppress
3293         # generation of the HWCAPS ELF section on Solaris x86 only.
3294         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3295         nm_default='nm -P -g'
3296         ;;
3297     netbsd)
3298         disable symver
3299         oss_indev_extralibs="-lossaudio"
3300         oss_outdev_extralibs="-lossaudio"
3301         enabled gcc || check_ldflags -Wl,-zmuldefs
3302         ;;
3303     openbsd|bitrig)
3304         disable symver
3305         SHFLAGS='-shared'
3306         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3307         SLIB_INSTALL_LINKS=
3308         oss_indev_extralibs="-lossaudio"
3309         oss_outdev_extralibs="-lossaudio"
3310         ;;
3311     dragonfly)
3312         disable symver
3313         ;;
3314     freebsd)
3315         ;;
3316     bsd/os)
3317         add_extralibs -lpoll -lgnugetopt
3318         strip="strip -d"
3319         ;;
3320     darwin)
3321         gas="gas-preprocessor.pl $cc"
3322         enabled ppc && add_asflags -force_cpusubtype_ALL
3323         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3324         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3325         strip="${strip} -x"
3326         add_ldflags -Wl,-dynamic,-search_paths_first
3327         SLIBSUF=".dylib"
3328         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3329         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3330         FFSERVERLDFLAGS=-Wl,-bind_at_load
3331         objformat="macho"
3332         enabled x86_64 && objformat="macho64"
3333         enabled_any pic shared ||
3334             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3335         ;;
3336     mingw32*)
3337         if test $target_os = "mingw32ce"; then
3338             disable network
3339         else
3340             target_os=mingw32
3341         fi
3342         LIBTARGET=i386
3343         if enabled x86_64; then
3344             LIBTARGET="i386:x86-64"
3345         elif enabled arm; then
3346             LIBTARGET=arm-wince
3347         fi
3348         shlibdir_default="$bindir_default"
3349         SLIBPREF=""
3350         SLIBSUF=".dll"
3351         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3352         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3353         dlltool="${cross_prefix}dlltool"
3354         if check_cmd lib.exe -list; then
3355             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3356             if enabled x86_64; then
3357                 LIBTARGET=x64
3358             fi
3359         elif check_cmd $dlltool --version; then
3360             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3361         fi
3362         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3363         SLIB_INSTALL_LINKS=
3364         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3365         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3366         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3367         objformat="win32"
3368         ranlib=:
3369         enable dos_paths
3370         ;;
3371     win32|win64)
3372         if enabled shared; then
3373             # Link to the import library instead of the normal static library
3374             # for shared libs.
3375             LD_LIB='%.lib'
3376             # Cannot build shared and static libraries at the same time with
3377             # MSVC.
3378             disable static
3379         fi
3380         shlibdir_default="$bindir_default"
3381         SLIBPREF=""
3382         SLIBSUF=".dll"
3383         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3384         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3385         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3386         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3387         SLIB_INSTALL_LINKS=
3388         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3389         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3390         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3391         objformat="win32"
3392         ranlib=:
3393         enable dos_paths
3394         ;;
3395     cygwin*)
3396         target_os=cygwin
3397         shlibdir_default="$bindir_default"
3398         SLIBPREF="cyg"
3399         SLIBSUF=".dll"
3400         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3401         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3402         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3403         SLIB_INSTALL_LINKS=
3404         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3405         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3406         objformat="win32"
3407         enable dos_paths
3408         ;;
3409     *-dos|freedos|opendos)
3410         network_extralibs="-lsocket"
3411         objformat="coff"
3412         enable dos_paths
3413         add_cppflags -U__STRICT_ANSI__
3414         ;;
3415     linux)
3416         enable dv1394
3417         ;;
3418     irix*)
3419         target_os=irix
3420         ranlib="echo ignoring ranlib"
3421         ;;
3422     os/2*)
3423         strip="lxlite -CS"
3424         ln_s="cp -f"
3425         objformat="aout"
3426         add_cppflags -D_GNU_SOURCE
3427         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3428         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3429         FFSERVERLDFLAGS=""
3430         LIBSUF="_s.a"
3431         SLIBPREF=""
3432         SLIBSUF=".dll"
3433         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3434         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3435         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3436             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3437             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3438             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3439             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3440             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3441         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3442             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3443         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3444         enable dos_paths
3445         enable_weak os2threads
3446         ;;
3447     gnu/kfreebsd)
3448         add_cppflags -D_BSD_SOURCE
3449         ;;
3450     gnu)
3451         ;;
3452     qnx)
3453         add_cppflags -D_QNX_SOURCE
3454         network_extralibs="-lsocket"
3455         ;;
3456     symbian)
3457         SLIBSUF=".dll"
3458         enable dos_paths
3459         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3460         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3461         add_ldflags -Wl,--target1-abs,--no-undefined \
3462                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3463                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3464         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3465                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3466                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3467         ;;
3468     osf1)
3469         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3470         FFSERVERLDFLAGS=
3471         ;;
3472     minix)
3473         ;;
3474     plan9)
3475         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3476                      -D_REENTRANT_SOURCE        \
3477                      -D_RESEARCH_SOURCE         \
3478                      -DFD_SETSIZE=96            \
3479                      -DHAVE_SOCK_OPTS
3480         add_compat strtod.o strtod=avpriv_strtod
3481         network_extralibs='-lbsd'
3482         exeobjs=compat/plan9/main.o
3483         disable ffserver
3484         cp_f='cp'
3485         ;;
3486     none)
3487         ;;
3488     *)
3489         die "Unknown OS '$target_os'."
3490         ;;
3491 esac
3492
3493 # determine libc flavour
3494
3495 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3496 if check_cpp_condition features.h "defined __UCLIBC__"; then
3497     libc_type=uclibc
3498     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3499 elif check_cpp_condition features.h "defined __GLIBC__"; then
3500     libc_type=glibc
3501     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3502 # MinGW headers can be installed on Cygwin, so check for newlib first.
3503 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3504     libc_type=newlib
3505     add_cppflags -U__STRICT_ANSI__
3506 elif check_header _mingw.h; then
3507     libc_type=mingw
3508     check_cpp_condition _mingw.h \
3509         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3510             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3511         die "ERROR: MinGW runtime version must be >= 3.15."
3512     add_cppflags -U__STRICT_ANSI__
3513     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3514             __MINGW64_VERSION_MAJOR < 3"; then
3515         add_compat msvcrt/snprintf.o
3516         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3517     fi
3518 elif check_func_headers stdlib.h _get_doserrno; then
3519     libc_type=msvcrt
3520     add_compat strtod.o strtod=avpriv_strtod
3521     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3522                                  _snprintf=avpriv_snprintf  \
3523                                  vsnprintf=avpriv_vsnprintf
3524 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3525     libc_type=klibc
3526 fi
3527
3528 test -n "$libc_type" && enable $libc_type
3529
3530 # hacks for compiler/libc/os combinations
3531
3532 if enabled_all tms470 glibc; then
3533     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3534     add_cppflags -D__USER_LABEL_PREFIX__=
3535     add_cppflags -D__builtin_memset=memset
3536     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3537     add_cflags   -pds=48    # incompatible redefinition of macro
3538 fi
3539
3540 if enabled_all ccc glibc; then
3541     add_ldflags -Wl,-z,now  # calls to libots crash without this
3542 fi
3543
3544 esc(){
3545     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3546 }
3547
3548 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3549
3550 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3551
3552 set_default $PATHS_LIST
3553 set_default nm
3554
3555 # we need to build at least one lib type
3556 if ! enabled_any static shared; then
3557     cat <<EOF
3558 At least one library type must be built.
3559 Specify --enable-static to build the static libraries or --enable-shared to
3560 build the shared libraries as well. To only build the shared libraries specify
3561 --disable-static in addition to --enable-shared.
3562 EOF
3563     exit 1;
3564 fi
3565
3566 die_license_disabled() {
3567     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3568 }
3569
3570 die_license_disabled_gpl() {
3571     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3572 }
3573
3574 die_license_disabled gpl libcdio
3575 die_license_disabled gpl libutvideo
3576 die_license_disabled gpl libx264
3577 die_license_disabled gpl libxavs
3578 die_license_disabled gpl libxvid
3579 die_license_disabled gpl x11grab
3580
3581 die_license_disabled nonfree libaacplus
3582 die_license_disabled nonfree libfaac
3583 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3584 enabled gpl && die_license_disabled_gpl nonfree openssl
3585
3586 die_license_disabled version3 libopencore_amrnb
3587 die_license_disabled version3 libopencore_amrwb
3588 die_license_disabled version3 libvo_aacenc
3589 die_license_disabled version3 libvo_amrwbenc
3590
3591 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3592
3593 disabled optimizations || check_cflags -fomit-frame-pointer
3594
3595 enable_pic() {
3596     enable pic
3597     add_cppflags -DPIC
3598     add_cflags   -fPIC
3599     add_asflags  -fPIC
3600 }
3601
3602 enabled pic && enable_pic
3603
3604 check_cc <<EOF || die "Symbol mangling check failed."
3605 int ff_extern;
3606 EOF
3607 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3608 extern_prefix=${sym%%ff_extern*}
3609
3610 check_cc <<EOF && enable_weak inline_asm
3611 void foo(void) { __asm__ volatile ("" ::); }
3612 EOF
3613
3614 _restrict=
3615 for restrict_keyword in restrict __restrict__ __restrict; do
3616     check_cc <<EOF && _restrict=$restrict_keyword && break
3617 void foo(char * $restrict_keyword p);
3618 EOF
3619 done
3620
3621 check_cc <<EOF && enable attribute_packed
3622 struct { int x; } __attribute__((packed)) x;
3623 EOF
3624
3625 check_cc <<EOF && enable attribute_may_alias
3626 union { int x; } __attribute__((may_alias)) x;
3627 EOF
3628
3629 check_cc <<EOF || die "endian test failed"
3630 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3631 EOF
3632 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3633
3634 if enabled alpha; then
3635
3636     check_cflags -mieee
3637
3638 elif enabled arm; then
3639
3640     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3641 float func(float a, float b){ return a+b; }
3642 EOF
3643
3644     enabled thumb && check_cflags -mthumb || check_cflags -marm
3645     nogas=die
3646
3647     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3648         enable vfp_args
3649     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3650         case "${cross_prefix:-$cc}" in
3651             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3652             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3653 __asm__ (".eabi_attribute 28, 1");
3654 int main(void) { return 0; }
3655 EOF
3656         esac
3657         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3658     fi
3659
3660     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3661     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3662     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3663     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3664     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3665     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3666
3667     [ $target_os = linux ] ||
3668         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3669             $ARCH_EXT_LIST_ARM
3670
3671     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3672     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3673
3674     enabled_all armv6t2 shared !pic && enable_pic
3675
3676 elif enabled mips; then
3677
3678     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3679     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3680      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3681     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3682      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3683     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3684      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3685     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3686      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3687
3688 elif enabled parisc; then
3689
3690     if enabled gcc; then
3691         case $($cc -dumpversion) in
3692             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3693         esac
3694     fi
3695
3696 elif enabled ppc; then
3697
3698     enable local_aligned_8 local_aligned_16
3699
3700     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3701     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3702     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3703     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3704
3705     # AltiVec flags: The FSF version of GCC differs from the Apple version
3706     if enabled altivec; then
3707         nogas=warn
3708         check_cflags -maltivec -mabi=altivec &&
3709         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3710         check_cflags -faltivec
3711
3712         # check if our compiler supports Motorola AltiVec C API
3713         check_cc <<EOF || disable altivec
3714 $inc_altivec_h
3715 int main(void) {
3716     vector signed int v1 = (vector signed int) { 0 };
3717     vector signed int v2 = (vector signed int) { 1 };
3718     v1 = vec_add(v1, v2);
3719     return 0;
3720 }
3721 EOF
3722
3723         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3724     fi
3725
3726 elif enabled sparc; then
3727
3728     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3729
3730 elif enabled x86; then
3731
3732     check_builtin rdtsc    intrin.h   "__rdtsc()"
3733     check_builtin mm_empty mmintrin.h "_mm_empty()"
3734
3735     enable local_aligned_8 local_aligned_16
3736
3737     # check whether EBP is available on x86
3738     # As 'i' is stored on the stack, this program will crash
3739     # if the base pointer is used to access it because the
3740     # base pointer is cleared in the inline assembly code.
3741     check_exec_crash <<EOF && enable ebp_available
3742 volatile int i=0;
3743 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3744 return i;
3745 EOF
3746
3747     # check whether EBX is available on x86
3748     check_inline_asm ebx_available '""::"b"(0)' &&
3749         check_inline_asm ebx_available '"":::"%ebx"'
3750
3751     # check whether xmm clobbers are supported
3752     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3753
3754     # check whether binutils is new enough to compile SSSE3/MMXEXT
3755     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3756     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3757
3758     if ! disabled_any asm mmx yasm; then
3759         if check_cmd $yasmexe --version; then
3760             enabled x86_64 && yasm_extra="-m amd64"
3761             yasm_debug="-g dwarf2"
3762         elif check_cmd nasm -v; then
3763             yasmexe=nasm
3764             yasm_debug="-g -F dwarf"
3765             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3766         fi
3767
3768         YASMFLAGS="-f $objformat $yasm_extra"
3769         enabled pic               && append YASMFLAGS "-DPIC"
3770         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3771         case "$objformat" in
3772             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3773         esac
3774
3775         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3776             die "yasm not found, use --disable-yasm for a crippled build"
3777         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3778         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3779         check_yasm "CPU amdnop" && enable cpunop
3780     fi
3781
3782     case "$cpu" in
3783         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3784             disable fast_clz
3785         ;;
3786     esac
3787
3788 fi
3789
3790 if enabled asm; then
3791     as=${gas:=$as}
3792     check_as <<EOF && enable gnu_as || \
3793         $nogas "GNU assembler not found, install gas-preprocessor"
3794 .macro m n
3795 \n: .int 0
3796 .endm
3797 m x
3798 EOF
3799 fi
3800
3801 check_ldflags -Wl,--as-needed
3802
3803 if check_func dlopen; then
3804     ldl=
3805 elif check_func dlopen -ldl; then
3806     ldl=-ldl
3807 fi
3808
3809 if ! disabled network; then
3810     check_type "sys/types.h sys/socket.h" socklen_t
3811     check_type netdb.h "struct addrinfo"
3812     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3813     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3814     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3815     check_type netinet/in.h "struct sockaddr_in6"
3816     check_type poll.h "struct pollfd"
3817     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3818     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3819     check_type netinet/sctp.h "struct sctp_event_subscribe"
3820     check_func getaddrinfo $network_extralibs
3821     check_func getservbyport $network_extralibs
3822     # Prefer arpa/inet.h over winsock2
3823     if check_header arpa/inet.h ; then
3824         check_func closesocket
3825     elif check_header winsock2.h ; then
3826         check_func_headers winsock2.h closesocket -lws2 &&
3827             network_extralibs="-lws2" ||
3828         { check_func_headers winsock2.h closesocket -lws2_32 &&
3829             network_extralibs="-lws2_32"; }
3830         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3831         check_type ws2tcpip.h socklen_t
3832         check_type ws2tcpip.h "struct addrinfo"
3833         check_type ws2tcpip.h "struct group_source_req"
3834         check_type ws2tcpip.h "struct ip_mreq_source"
3835         check_type ws2tcpip.h "struct ipv6_mreq"
3836         check_type winsock2.h "struct pollfd"
3837         check_type ws2tcpip.h "struct sockaddr_in6"
3838         check_type ws2tcpip.h "struct sockaddr_storage"
3839         check_struct winsock2.h "struct sockaddr" sa_len
3840     else
3841         disable network
3842     fi
3843 fi
3844
3845 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3846 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3847
3848 check_func  access
3849 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3850 check_func  fcntl
3851 check_func  fork
3852 check_func  gethrtime
3853 check_func  getopt
3854 check_func  getrusage
3855 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3856 check_func  gettimeofday
3857 check_func  inet_aton $network_extralibs
3858 check_func  isatty
3859 check_func  localtime_r
3860 check_func  ${malloc_prefix}memalign            && enable memalign
3861 check_func  mkstemp
3862 check_func  mmap
3863 check_func  mprotect
3864 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3865 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3866 check_func  setrlimit
3867 check_func  strerror_r
3868 check_func  sched_getaffinity
3869 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3870 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3871 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3872 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3873 check_func  sysconf
3874 check_func  sysctl
3875 check_func  usleep
3876 check_func_headers conio.h kbhit
3877 check_func_headers windows.h PeekNamedPipe
3878 check_func_headers io.h setmode
3879 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3880 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3881 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3882 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3883 check_func_headers windows.h GetProcessAffinityMask
3884 check_func_headers windows.h GetProcessTimes
3885 check_func_headers windows.h GetSystemTimeAsFileTime
3886 check_func_headers windows.h MapViewOfFile
3887 check_func_headers windows.h SetConsoleTextAttribute
3888 check_func_headers windows.h Sleep
3889 check_func_headers windows.h VirtualAlloc
3890 check_func_headers glob.h glob
3891
3892 check_header direct.h
3893 check_header dlfcn.h
3894 check_header dxva.h
3895 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3896 check_header io.h
3897 check_header libcrystalhd/libcrystalhd_if.h
3898 check_header malloc.h
3899 check_header poll.h
3900 check_header sys/mman.h
3901 check_header sys/param.h
3902 check_header sys/resource.h
3903 check_header sys/select.h
3904 check_header sys/time.h
3905 check_header termios.h
3906 check_header unistd.h
3907 check_header vdpau/vdpau.h
3908 check_header vdpau/vdpau_x11.h
3909 check_header VideoDecodeAcceleration/VDADecoder.h
3910 check_header windows.h
3911 check_header X11/extensions/XvMClib.h
3912 check_header asm/types.h
3913
3914 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3915 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3916
3917 if ! disabled w32threads && ! enabled pthreads; then
3918     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3919 fi
3920
3921 # check for some common methods of building with pthread support
3922 # do this before the optional library checks as some of them require pthreads
3923 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3924     enable pthreads
3925     if check_func pthread_create; then
3926         :
3927     elif check_func pthread_create -pthread; then
3928         add_cflags -pthread
3929         add_extralibs -pthread
3930     elif check_func pthread_create -pthreads; then
3931         add_cflags -pthreads
3932         add_extralibs -pthreads
3933     elif check_func pthread_create -lpthreadGC2; then
3934         add_extralibs -lpthreadGC2
3935     elif ! check_lib pthread.h pthread_create -lpthread; then
3936         disable pthreads
3937     fi
3938 fi
3939
3940 for thread in $THREADS_LIST; do
3941     if enabled $thread; then
3942         test -n "$thread_type" &&
3943             die "ERROR: Only one thread type must be selected." ||
3944             thread_type="$thread"
3945     fi
3946 done
3947
3948 if enabled pthreads; then
3949   check_func pthread_cancel
3950 fi
3951
3952 enabled sync_val_compare_and_swap && enable atomics_gcc
3953 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
3954 enabled MemoryBarrier && enable atomics_win32
3955
3956 check_lib math.h sin -lm && LIBM="-lm"
3957 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3958 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3959
3960 atan2f_args=2
3961 ldexpf_args=2
3962 powf_args=2
3963
3964 for func in $MATH_FUNCS; do
3965     eval check_mathfunc $func \${${func}_args:-1}
3966 done
3967
3968 # these are off by default, so fail if requested and not available
3969 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
3970                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
3971                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
3972 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3973 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3974 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3975 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3976 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3977 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3978 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3979 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3980                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3981                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3982 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3983 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3984 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3985 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"
3986 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3987 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3988 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3989                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3990                         done || die "ERROR: libgsm not found"; }
3991 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3992 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3993 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3994 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3995 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3996 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3997 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3998 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3999                          check_lib openjpeg.h opj_version -lopenjpeg ||
4000                          die "ERROR: libopenjpeg not found"; }
4001 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4002 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4003 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4004 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4005 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4006 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4007 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4008 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4009 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4010     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4011     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4012 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4013 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4014                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4015                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4016 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4017 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4018 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4019 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4020 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4021 enabled libvpx     && {
4022     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4023                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4024     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 ||
4025                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4026     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4027     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4028 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4029                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4030                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4031 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4032 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4033 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4034                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4035                         die "ERROR: openal not found"; } &&
4036                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4037                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4038 enabled opencl     && require2 opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL
4039 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4040                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4041                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4042                         die "ERROR: openssl not found"; }
4043
4044 if enabled gnutls; then
4045     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4046     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4047 fi
4048
4049 # libdc1394 check
4050 if enabled libdc1394; then
4051     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4052         enable libdc1394_2; } ||
4053     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4054         enable libdc1394_1; } ||
4055     die "ERROR: No version of libdc1394 found "
4056 fi
4057
4058 SDL_CONFIG="${cross_prefix}sdl-config"
4059 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4060     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4061     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4062     enable sdl
4063 else
4064   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4065     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4066     sdl_libs=$("${SDL_CONFIG}" --libs)
4067     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4068     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4069     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4070     enable sdl
4071   fi
4072 fi
4073 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4074
4075 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4076 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4077 perl --version > /dev/null 2>&1 && enable perl || disable perl
4078 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4079 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4080
4081 check_header linux/fb.h
4082 check_header linux/videodev.h
4083 check_header linux/videodev2.h
4084 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4085
4086 check_header sys/videoio.h
4087
4088 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4089 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4090 # w32api 3.12 had it defined wrong
4091 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4092
4093 check_type "dshow.h" IBaseFilter
4094
4095 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4096 { check_header dev/bktr/ioctl_meteor.h &&
4097   check_header dev/bktr/ioctl_bt848.h; } ||
4098 { check_header machine/ioctl_meteor.h &&
4099   check_header machine/ioctl_bt848.h; } ||
4100 { check_header dev/video/meteor/ioctl_meteor.h &&
4101   check_header dev/video/bktr/ioctl_bt848.h; } ||
4102 check_header dev/ic/bt8xx.h
4103
4104 check_header sndio.h
4105 if check_struct sys/soundcard.h audio_buf_info bytes; then
4106     enable_safe sys/soundcard.h
4107 else
4108     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4109     #include <sys/soundcard.h>
4110     audio_buf_info abc;
4111 EOF
4112 fi
4113 check_header soundcard.h
4114
4115 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4116
4117 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4118     check_func jack_port_get_latency_range -ljack
4119
4120 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4121
4122 if enabled libcdio; then
4123     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
4124 fi
4125
4126 enabled x11grab                                           &&
4127 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4128 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4129 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4130
4131 if ! disabled vaapi; then
4132     check_lib va/va.h vaInitialize -lva && {
4133         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4134         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4135     } || disable vaapi
4136 fi
4137
4138 enabled vdpau &&
4139     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4140     disable vdpau
4141
4142 # Funny iconv installations are not unusual, so check it after all flags have been set
4143 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4144
4145 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4146 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"
4147
4148 # add some useful compiler flags if supported
4149 check_cflags -Wdeclaration-after-statement
4150 check_cflags -Wall
4151 check_cflags -Wno-parentheses
4152 check_cflags -Wno-switch
4153 check_cflags -Wno-format-zero-length
4154 check_cflags -Wdisabled-optimization
4155 check_cflags -Wpointer-arith
4156 check_cflags -Wredundant-decls
4157 check_cflags -Wno-pointer-sign
4158 check_cflags -Wwrite-strings
4159 check_cflags -Wtype-limits
4160 check_cflags -Wundef
4161 check_cflags -Wmissing-prototypes
4162 check_cflags -Wno-pointer-to-int-cast
4163 check_cflags -Wstrict-prototypes
4164 enabled extra_warnings && check_cflags -Winline
4165
4166 # add some linker flags
4167 check_ldflags -Wl,--warn-common
4168 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4169 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4170
4171 enabled xmm_clobber_test &&
4172     check_ldflags -Wl,--wrap,avcodec_open2              \
4173                   -Wl,--wrap,avcodec_decode_audio4      \
4174                   -Wl,--wrap,avcodec_decode_video2      \
4175                   -Wl,--wrap,avcodec_decode_subtitle2   \
4176                   -Wl,--wrap,avcodec_encode_audio2      \
4177                   -Wl,--wrap,avcodec_encode_video       \
4178                   -Wl,--wrap,avcodec_encode_subtitle    \
4179                   -Wl,--wrap,sws_scale ||
4180     disable xmm_clobber_test
4181
4182 echo "X{};" > $TMPV
4183 if test_ldflags -Wl,--version-script,$TMPV; then
4184     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4185     check_cc <<EOF && enable symver_asm_label
4186 void ff_foo(void) __asm__ ("av_foo@VERSION");
4187 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4188 EOF
4189     check_cc <<EOF && enable symver_gnu_asm
4190 __asm__(".symver ff_foo,av_foo@VERSION");
4191 void ff_foo(void) {}
4192 EOF
4193 fi
4194
4195 if [ -z "$optflags" ]; then
4196     if enabled small; then
4197         optflags=$cflags_size
4198     elif enabled optimizations; then
4199         optflags=$cflags_speed
4200     else
4201         optflags=$cflags_noopt
4202     fi
4203 fi
4204
4205 check_optflags(){
4206     check_cflags "$@"
4207     enabled lto && check_ldflags "$@"
4208 }
4209
4210
4211 if enabled lto; then
4212     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4213     check_cflags  -flto
4214     check_ldflags -flto $cpuflags
4215 fi
4216
4217 check_optflags $optflags
4218 check_optflags -fno-math-errno
4219 check_optflags -fno-signed-zeros
4220
4221 enabled ftrapv && check_cflags -ftrapv
4222
4223 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4224 int x;
4225 EOF
4226
4227
4228 if enabled icc; then
4229     # Just warnings, no remarks
4230     check_cflags -w1
4231     # -wd: Disable following warnings
4232     # 144, 167, 556: -Wno-pointer-sign
4233     # 188: enumerated type mixed with another type
4234     # 1292: attribute "foo" ignored
4235     # 1419: external declaration in primary source file
4236     # 10006: ignoring unknown option -fno-signed-zeros
4237     # 10148: ignoring unknown option -Wno-parentheses
4238     # 10156: ignoring option '-W'; no argument required
4239     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4240     # 11030: Warning unknown option --as-needed
4241     # 10156: ignoring option '-export'; no argument required
4242     check_ldflags -wd10156,11030
4243     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4244     enable ebp_available
4245     if enabled x86_32; then
4246         icc_version=$($cc -dumpversion)
4247         test ${icc_version%%.*} -ge 11 &&
4248             check_cflags -falign-stack=maintain-16-byte ||
4249             disable aligned_stack
4250     fi
4251 elif enabled ccc; then
4252     # disable some annoying warnings
4253     add_cflags -msg_disable bitnotint
4254     add_cflags -msg_disable mixfuncvoid
4255     add_cflags -msg_disable nonstandcast
4256     add_cflags -msg_disable unsupieee
4257 elif enabled gcc; then
4258     check_optflags -fno-tree-vectorize
4259     check_cflags -Werror=implicit-function-declaration
4260     check_cflags -Werror=missing-prototypes
4261     check_cflags -Werror=return-type
4262     check_cflags -Werror=vla
4263 elif enabled llvm_gcc; then
4264     check_cflags -mllvm -stack-alignment=16
4265 elif enabled clang; then
4266     check_cflags -mllvm -stack-alignment=16
4267     check_cflags -Qunused-arguments
4268     check_cflags -Werror=implicit-function-declaration
4269     check_cflags -Werror=missing-prototypes
4270     check_cflags -Werror=return-type
4271 elif enabled armcc; then
4272     # 2523: use of inline assembler is deprecated
4273     add_cflags -W${armcc_opt},--diag_suppress=2523
4274     add_cflags -W${armcc_opt},--diag_suppress=1207
4275     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4276     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4277     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4278     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4279 elif enabled tms470; then
4280     add_cflags -pds=824 -pds=837
4281 elif enabled pathscale; then
4282     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4283 elif enabled msvc; then
4284     enabled x86_32 && disable aligned_stack
4285 fi
4286
4287 case $target_os in
4288     osf1)
4289         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4290     ;;
4291     plan9)
4292         add_cppflags -Dmain=plan9_main
4293     ;;
4294 esac
4295
4296 enable frame_thread_encoder
4297 enabled_any $THREADS_LIST      && enable threads
4298 enabled_any $ATOMICS_LIST      && enable atomics_native
4299
4300 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4301
4302 check_deps $CONFIG_LIST       \
4303            $CONFIG_EXTRA      \
4304            $HAVE_LIST         \
4305            $ALL_COMPONENTS    \
4306
4307
4308 if test $target_os = "haiku"; then
4309     disable memalign
4310     disable posix_memalign
4311 fi
4312
4313 ! enabled_any memalign posix_memalign aligned_malloc &&
4314     enabled_any $need_memalign && enable memalign_hack
4315
4316 # add_dep lib dep
4317 # -> enable ${lib}_deps_${dep}
4318 # -> add $dep to ${lib}_deps only once
4319 add_dep() {
4320     lib=$1
4321     dep=$2
4322     enabled "${lib}_deps_${dep}" && return 0
4323     enable  "${lib}_deps_${dep}"
4324     prepend "${lib}_deps" $dep
4325 }
4326
4327 # merge deps lib components
4328 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4329 merge_deps() {
4330     lib=$1
4331     shift
4332     for comp in $*; do
4333         enabled $comp || continue
4334         eval "dep=\"\$${comp}_deps\""
4335         for d in $dep; do
4336             add_dep $lib $d
4337         done
4338     done
4339 }
4340
4341 merge_deps libavfilter $FILTER_LIST
4342
4343 echo "install prefix            $prefix"
4344 echo "source path               $source_path"
4345 echo "C compiler                $cc"
4346 echo "ARCH                      $arch ($cpu)"
4347 if test "$build_suffix" != ""; then
4348     echo "build suffix              $build_suffix"
4349 fi
4350 if test "$progs_suffix" != ""; then
4351     echo "progs suffix              $progs_suffix"
4352 fi
4353 if test "$extra_version" != ""; then
4354     echo "version string suffix     $extra_version"
4355 fi
4356 echo "big-endian                ${bigendian-no}"
4357 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4358 if enabled x86; then
4359     echo "${yasmexe}                      ${yasm-no}"
4360     echo "MMX enabled               ${mmx-no}"
4361     echo "MMXEXT enabled            ${mmxext-no}"
4362     echo "3DNow! enabled            ${amd3dnow-no}"
4363     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4364     echo "SSE enabled               ${sse-no}"
4365     echo "SSSE3 enabled             ${ssse3-no}"
4366     echo "AVX enabled               ${avx-no}"
4367     echo "FMA4 enabled              ${fma4-no}"
4368     echo "CMOV enabled              ${cmov-no}"
4369     echo "CMOV is fast              ${fast_cmov-no}"
4370     echo "EBX available             ${ebx_available-no}"
4371     echo "EBP available             ${ebp_available-no}"
4372 fi
4373 if enabled arm; then
4374     echo "ARMv5TE enabled           ${armv5te-no}"
4375     echo "ARMv6 enabled             ${armv6-no}"
4376     echo "ARMv6T2 enabled           ${armv6t2-no}"
4377     echo "VFP enabled               ${vfp-no}"
4378     echo "NEON enabled              ${neon-no}"
4379     echo "THUMB enabled             ${thumb-no}"
4380 fi
4381 if enabled mips; then
4382     echo "MIPS FPU enabled          ${mipsfpu-no}"
4383     echo "MIPS32R2 enabled          ${mips32r2-no}"
4384     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4385     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4386 fi
4387 if enabled ppc; then
4388     echo "AltiVec enabled           ${altivec-no}"
4389     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4390     echo "dcbzl available           ${dcbzl-no}"
4391 fi
4392 if enabled sparc; then
4393     echo "VIS enabled               ${vis-no}"
4394 fi
4395 echo "debug symbols             ${debug-no}"
4396 echo "strip symbols             ${stripping-no}"
4397 echo "optimize for size         ${small-no}"
4398 echo "optimizations             ${optimizations-no}"
4399 echo "static                    ${static-no}"
4400 echo "shared                    ${shared-no}"
4401 echo "postprocessing support    ${postproc-no}"
4402 echo "new filter support        ${avfilter-no}"
4403 echo "network support           ${network-no}"
4404 echo "threading support         ${thread_type-no}"
4405 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4406 echo "SDL support               ${sdl-no}"
4407 echo "opencl enabled            ${opencl-no}"
4408 echo "libshine enabled          ${libshine-no}"
4409 echo "texi2html enabled         ${texi2html-no}"
4410 echo "perl enabled              ${perl-no}"
4411 echo "pod2man enabled           ${pod2man-no}"
4412 echo "makeinfo enabled          ${makeinfo-no}"
4413 test -n "$random_seed" &&
4414     echo "random seed               ${random_seed}"
4415 echo
4416
4417 echo "External libraries:"
4418 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4419 echo
4420
4421 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4422     echo "Enabled ${type}s:"
4423     eval list=\$$(toupper $type)_LIST
4424     print_enabled '_*' $list | print_3_columns
4425     echo
4426 done
4427
4428 license="LGPL version 2.1 or later"
4429 if enabled nonfree; then
4430     license="nonfree and unredistributable"
4431 elif enabled gplv3; then
4432     license="GPL version 3 or later"
4433 elif enabled lgplv3; then
4434     license="LGPL version 3 or later"
4435 elif enabled gpl; then
4436     license="GPL version 2 or later"
4437 fi
4438
4439 echo "License: $license"
4440
4441 echo "Creating config.mak, config.h, and doc/config.texi..."
4442
4443 test -e Makefile || $ln_s "$source_path/Makefile" .
4444
4445 enabled stripping || strip="echo skipping strip"
4446
4447 config_files="$TMPH config.mak doc/config.texi"
4448
4449 cat > config.mak <<EOF
4450 # Automatically generated by configure - do not modify!
4451 ifndef FFMPEG_CONFIG_MAK
4452 FFMPEG_CONFIG_MAK=1
4453 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4454 prefix=$prefix
4455 LIBDIR=\$(DESTDIR)$libdir
4456 SHLIBDIR=\$(DESTDIR)$shlibdir
4457 INCDIR=\$(DESTDIR)$incdir
4458 BINDIR=\$(DESTDIR)$bindir
4459 DATADIR=\$(DESTDIR)$datadir
4460 MANDIR=\$(DESTDIR)$mandir
4461 SRC_PATH=$source_path
4462 ifndef MAIN_MAKEFILE
4463 SRC_PATH:=\$(SRC_PATH:.%=..%)
4464 endif
4465 CC_IDENT=$cc_ident
4466 ARCH=$arch
4467 CC=$cc
4468 CXX=$cxx
4469 AS=$as
4470 LD=$ld
4471 DEPCC=$dep_cc
4472 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4473 DEPAS=$as
4474 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4475 YASM=$yasmexe
4476 DEPYASM=$yasmexe
4477 AR=$ar
4478 ARFLAGS=$arflags
4479 AR_O=$ar_o
4480 RANLIB=$ranlib
4481 CP=cp -p
4482 LN_S=$ln_s
4483 STRIP=$strip
4484 CPPFLAGS=$CPPFLAGS
4485 CFLAGS=$CFLAGS
4486 CXXFLAGS=$CXXFLAGS
4487 ASFLAGS=$ASFLAGS
4488 AS_C=$AS_C
4489 AS_O=$AS_O
4490 CC_C=$CC_C
4491 CC_E=$CC_E
4492 CC_O=$CC_O
4493 CXX_C=$CXX_C
4494 CXX_O=$CXX_O
4495 LD_O=$LD_O
4496 LD_LIB=$LD_LIB
4497 LD_PATH=$LD_PATH
4498 DLLTOOL=$dlltool
4499 LDFLAGS=$LDFLAGS
4500 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4501 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4502 YASMFLAGS=$YASMFLAGS
4503 BUILDSUF=$build_suffix
4504 PROGSSUF=$progs_suffix
4505 FULLNAME=$FULLNAME
4506 LIBPREF=$LIBPREF
4507 LIBSUF=$LIBSUF
4508 LIBNAME=$LIBNAME
4509 SLIBPREF=$SLIBPREF
4510 SLIBSUF=$SLIBSUF
4511 EXESUF=$EXESUF
4512 EXTRA_VERSION=$extra_version
4513 CCDEP=$CCDEP
4514 CXXDEP=$CXXDEP
4515 CCDEP_FLAGS=$CCDEP_FLAGS
4516 ASDEP=$ASDEP
4517 ASDEP_FLAGS=$ASDEP_FLAGS
4518 CC_DEPFLAGS=$CC_DEPFLAGS
4519 AS_DEPFLAGS=$AS_DEPFLAGS
4520 HOSTCC=$host_cc
4521 HOSTLD=$host_ld
4522 HOSTCFLAGS=$host_cflags
4523 HOSTCPPFLAGS=$host_cppflags
4524 HOSTEXESUF=$HOSTEXESUF
4525 HOSTLDFLAGS=$host_ldflags
4526 HOSTLIBS=$host_libs
4527 DEPHOSTCC=$host_cc
4528 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4529 HOSTCCDEP=$HOSTCCDEP
4530 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4531 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4532 HOSTCC_C=$HOSTCC_C
4533 HOSTCC_O=$HOSTCC_O
4534 HOSTLD_O=$HOSTLD_O
4535 TARGET_EXEC=$target_exec
4536 TARGET_PATH=$target_path
4537 LIBS-ffplay=$sdl_libs
4538 CFLAGS-ffplay=$sdl_cflags
4539 ZLIB=$($ldflags_filter -lz)
4540 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4541 EXTRALIBS=$extralibs
4542 COMPAT_OBJS=$compat_objs
4543 EXEOBJS=$exeobjs
4544 INSTALL=$install
4545 LIBTARGET=${LIBTARGET}
4546 SLIBNAME=${SLIBNAME}
4547 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4548 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4549 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4550 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4551 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4552 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4553 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4554 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4555 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4556 NOREDZONE_FLAGS=$noredzone_flags
4557 EOF
4558
4559 get_version(){
4560     lcname=lib${1}
4561     name=$(toupper $lcname)
4562     file=$source_path/$lcname/version.h
4563     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4564     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4565     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4566     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4567     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4568 }
4569
4570 map 'get_version $v' $LIBRARY_LIST
4571
4572 cat > $TMPH <<EOF
4573 /* Automatically generated by configure - do not modify! */
4574 #ifndef FFMPEG_CONFIG_H
4575 #define FFMPEG_CONFIG_H
4576 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4577 #define FFMPEG_LICENSE "$(c_escape $license)"
4578 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4579 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4580 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4581 #define av_restrict $_restrict
4582 #define EXTERN_PREFIX "${extern_prefix}"
4583 #define EXTERN_ASM ${extern_prefix}
4584 #define SLIBSUF "$SLIBSUF"
4585 #define HAVE_MMX2 HAVE_MMXEXT
4586 EOF
4587
4588 test -n "$assert_level" &&
4589     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4590
4591 test -n "$malloc_prefix" &&
4592     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4593
4594 if enabled yasm; then
4595     append config_files $TMPASM
4596     printf '' >$TMPASM
4597 fi
4598
4599 mkdir -p doc
4600 echo "@c auto-generated by configure" > doc/config.texi
4601
4602 print_config ARCH_   "$config_files" $ARCH_LIST
4603 print_config HAVE_   "$config_files" $HAVE_LIST
4604 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4605                                      $CONFIG_EXTRA      \
4606                                      $ALL_COMPONENTS    \
4607
4608 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4609 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4610
4611 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4612 cp_if_changed $TMPH config.h
4613 touch .config
4614
4615 enabled yasm && cp_if_changed $TMPASM config.asm
4616
4617 cat > $TMPH <<EOF
4618 /* Generated by ffconf */
4619 #ifndef AVUTIL_AVCONFIG_H
4620 #define AVUTIL_AVCONFIG_H
4621 EOF
4622
4623 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4624
4625 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4626
4627 cp_if_changed $TMPH libavutil/avconfig.h
4628
4629 if test -n "$WARNINGS"; then
4630     printf "\n$WARNINGS"
4631     enabled fatal_warnings && exit 1
4632 fi
4633
4634 # build pkg-config files
4635
4636 pkgconfig_generate(){
4637     name=$1
4638     shortname=${name#lib}${build_suffix}
4639     comment=$2
4640     version=$3
4641     libs=$4
4642     requires=$5
4643     enabled ${name#lib} || return 0
4644     mkdir -p $name
4645     cat <<EOF > $name/$name${build_suffix}.pc
4646 prefix=$prefix
4647 exec_prefix=\${prefix}
4648 libdir=$libdir
4649 includedir=$incdir
4650
4651 Name: $name
4652 Description: $comment
4653 Version: $version
4654 Requires: $(enabled shared || echo $requires)
4655 Requires.private: $(enabled shared && echo $requires)
4656 Conflicts:
4657 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4658 Libs.private: $(enabled shared && echo $libs)
4659 Cflags: -I\${includedir}
4660 EOF
4661
4662 mkdir -p doc/examples/pc-uninstalled
4663 includedir=${source_path}
4664 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4665     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4666 prefix=
4667 exec_prefix=
4668 libdir=\${pcfiledir}/../../../$name
4669 includedir=${includedir}
4670
4671 Name: $name
4672 Description: $comment
4673 Version: $version
4674 Requires: $requires
4675 Conflicts:
4676 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4677 Cflags: -I\${includedir}
4678 EOF
4679 }
4680
4681 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4682 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4683 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4684 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4685 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4686 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4687 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4688 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4689
4690 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4691 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4692
4693 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4694 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4695 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4696 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4697 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4698 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4699 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4700 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4701 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4702
4703 fix_ffmpeg_remote(){
4704     git_remote_from=$1
4705     git_remote_to=$2
4706     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4707     if [ "$fixme_remote" != "" ]; then
4708         echolog "
4709 Outdated domain in git config, the official domain for ffmpeg git is since
4710 November 2011, source.ffmpeg.org, both the old and the new point to the same
4711 repository and server. To update it enter the following commands:
4712 "
4713         for remote in $fixme_remote; do
4714             echolog "git remote set-url $remote $git_remote_to"
4715         done
4716     fi
4717 }
4718
4719 if test -f "$source_path/.git/config"; then
4720     remote_from=git.videolan.org
4721     remote_to=source.ffmpeg.org
4722     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4723     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4724 fi