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-libvidstab      enable video stabilization using vid.stab [no]
 230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 233                            native implementation exists [no]
 234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 235   --enable-libx264         enable H.264 encoding via x264 [no]
 236   --enable-libxavs         enable AVS encoding via xavs [no]
 237   --enable-libxvid         enable Xvid encoding via xvidcore,
 238                            native MPEG-4/Xvid encoder exists [no]
 239   --enable-openal          enable OpenAL 1.1 capture support [no]
 240   --enable-opencl          enable OpenCL code
 241   --enable-openssl         enable openssl [no]
 242   --enable-x11grab         enable X11 grabbing [no]
 243   --enable-zlib            enable zlib [autodetect]
 244
 245 Advanced options (experts only):
 246   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 247   --enable-cross-compile   assume a cross-compiler is used
 248   --sysroot=PATH           root of cross-build tree
 249   --sysinclude=PATH        location of cross-build system headers
 250   --target-os=OS           compiler targets OS [$target_os]
 251   --target-exec=CMD        command to run executables on target
 252   --target-path=DIR        path to view of build directory on target
 253   --toolchain=NAME         set tool defaults according to NAME
 254   --nm=NM                  use nm tool NM [$nm_default]
 255   --ar=AR                  use archive tool AR [$ar_default]
 256   --as=AS                  use assembler AS [$as_default]
 257   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 258   --cc=CC                  use C compiler CC [$cc_default]
 259   --cxx=CXX                use C compiler CXX [$cxx_default]
 260   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 261   --ld=LD                  use linker LD [$ld_default]
 262   --host-cc=HOSTCC         use host C compiler HOSTCC
 263   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 264   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 265   --host-ld=HOSTLD         use host linker HOSTLD
 266   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 267   --host-libs=HLIBS        use libs HLIBS when linking for host
 268   --host-os=OS             compiler host OS [$target_os]
 269   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 270   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 271   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 272   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 273   --extra-version=STRING   version string suffix []
 274   --optflags=OPTFLAGS      override optimization-related compiler flags
 275   --build-suffix=SUFFIX    library name suffix []
 276   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 277   --progs-suffix=SUFFIX    program name suffix []
 278   --arch=ARCH              select architecture [$arch]
 279   --cpu=CPU                select the minimum required CPU (affects
 280                            instruction selection, may crash on older CPUs)
 281   --enable-pic             build position-independent code
 282   --enable-sram            allow use of on-chip SRAM
 283   --enable-thumb           compile for Thumb instruction set
 284   --disable-symver         disable symbol versioning
 285   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 286   --disable-safe-bitstream-reader
 287                            disable buffer boundary checking in bitreaders
 288                            (faster, but may crash)
 289   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 290   --enable-lto             use link-time optimization
 291
 292 Optimization options (experts only):
 293   --disable-asm            disable all assembler optimizations
 294   --disable-altivec        disable AltiVec optimizations
 295   --disable-amd3dnow       disable 3DNow! optimizations
 296   --disable-amd3dnowext    disable 3DNow! extended optimizations
 297   --disable-mmx            disable MMX optimizations
 298   --disable-mmxext         disable MMXEXT optimizations
 299   --disable-sse            disable SSE optimizations
 300   --disable-sse2           disable SSE2 optimizations
 301   --disable-sse3           disable SSE3 optimizations
 302   --disable-ssse3          disable SSSE3 optimizations
 303   --disable-sse4           disable SSE4 optimizations
 304   --disable-sse42          disable SSE4.2 optimizations
 305   --disable-avx            disable AVX optimizations
 306   --disable-fma4           disable FMA4 optimizations
 307   --disable-armv5te        disable armv5te optimizations
 308   --disable-armv6          disable armv6 optimizations
 309   --disable-armv6t2        disable armv6t2 optimizations
 310   --disable-vfp            disable VFP optimizations
 311   --disable-neon           disable NEON optimizations
 312   --disable-vis            disable VIS optimizations
 313   --disable-inline-asm     disable use of inline assembler
 314   --disable-yasm           disable use of yasm assembler
 315   --disable-mips32r2       disable MIPS32R2 optimizations
 316   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 317   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 318   --disable-mipsfpu        disable floating point MIPS optimizations
 319   --disable-fast-unaligned consider unaligned accesses slow
 320
 321 Developer options (useful when working on FFmpeg itself):
 322   --disable-debug          disable debugging symbols
 323   --enable-debug=LEVEL     set the debug level [$debuglevel]
 324   --disable-optimizations  disable compiler optimizations
 325   --enable-extra-warnings  enable more compiler warnings
 326   --disable-stripping      disable stripping of executables and shared libraries
 327   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 328                            2 causes a slowdown at runtime.
 329   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 330   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 331                            leaks and errors, using the specified valgrind binary.
 332                            Cannot be combined with --target-exec
 333   --enable-ftrapv          Trap arithmetic overflows
 334   --samples=PATH           location of test samples for FATE, if not set use
 335                            \$FATE_SAMPLES at make invocation time.
 336   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 337                            should be used only for debugging purposes)
 338   --enable-random          randomly enable/disable components
 339   --disable-random
 340   --enable-random=LIST     randomly enable/disable specific components or
 341   --disable-random=LIST    component groups. LIST is a comma-separated list
 342                            of NAME[:PROB] entries where NAME is a component
 343                            (group) and PROB the probability associated with
 344                            NAME (default 0.5).
 345   --random-seed=VALUE      seed value for --enable/disable-random
 346
 347 NOTE: Object files are built at the place where configure is launched.
 348 EOF
 349   exit 0
 350 }
 351
 352 quotes='""'
 353
 354 log(){
 355     echo "$@" >> $logfile
 356 }
 357
 358 log_file(){
 359     log BEGIN $1
 360     pr -n -t $1 >> $logfile
 361     log END $1
 362 }
 363
 364 echolog(){
 365     log "$@"
 366     echo "$@"
 367 }
 368
 369 warn(){
 370     log "WARNING: $*"
 371     WARNINGS="${WARNINGS}WARNING: $*\n"
 372 }
 373
 374 die(){
 375     echolog "$@"
 376     cat <<EOF
 377
 378 If you think configure made a mistake, make sure you are using the latest
 379 version from Git.  If the latest version fails, report the problem to the
 380 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 381 EOF
 382     if disabled logging; then
 383         cat <<EOF
 384 Rerun configure with logging enabled (do not use --disable-logging), and
 385 include the log this produces with your report.
 386 EOF
 387     else
 388         cat <<EOF
 389 Include the log file "$logfile" produced by configure as this will help
 390 solving the problem.
 391 EOF
 392     fi
 393     exit 1
 394 }
 395
 396 # Avoid locale weirdness, besides we really just want to translate ASCII.
 397 toupper(){
 398     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 399 }
 400
 401 tolower(){
 402     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 403 }
 404
 405 c_escape(){
 406     echo "$*" | sed 's/["\\]/\\\0/g'
 407 }
 408
 409 sh_quote(){
 410     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 411     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 412     echo "$v"
 413 }
 414
 415 cleanws(){
 416     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 417 }
 418
 419 filter(){
 420     pat=$1
 421     shift
 422     for v; do
 423         eval "case $v in $pat) echo $v ;; esac"
 424     done
 425 }
 426
 427 filter_out(){
 428     pat=$1
 429     shift
 430     for v; do
 431         eval "case $v in $pat) ;; *) echo $v ;; esac"
 432     done
 433 }
 434
 435 map(){
 436     m=$1
 437     shift
 438     for v; do eval $m; done
 439 }
 440
 441 add_suffix(){
 442     suffix=$1
 443     shift
 444     for v; do echo ${v}${suffix}; done
 445 }
 446
 447 set_all(){
 448     value=$1
 449     shift
 450     for var in $*; do
 451         eval $var=$value
 452     done
 453 }
 454
 455 set_weak(){
 456     value=$1
 457     shift
 458     for var; do
 459         eval : \${$var:=$value}
 460     done
 461 }
 462
 463 sanitize_var_name(){
 464     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 465 }
 466
 467 set_safe(){
 468     var=$1
 469     shift
 470     eval $(sanitize_var_name "$var")='$*'
 471 }
 472
 473 get_safe(){
 474     eval echo \$$(sanitize_var_name "$1")
 475 }
 476
 477 pushvar(){
 478     for var in $*; do
 479         eval level=\${${var}_level:=0}
 480         eval ${var}_${level}="\$$var"
 481         eval ${var}_level=$(($level+1))
 482     done
 483 }
 484
 485 popvar(){
 486     for var in $*; do
 487         eval level=\${${var}_level:-0}
 488         test $level = 0 && continue
 489         eval level=$(($level-1))
 490         eval $var="\${${var}_${level}}"
 491         eval ${var}_level=$level
 492         eval unset ${var}_${level}
 493     done
 494 }
 495
 496 enable(){
 497     set_all yes $*
 498 }
 499
 500 disable(){
 501     set_all no $*
 502 }
 503
 504 enable_weak(){
 505     set_weak yes $*
 506 }
 507
 508 disable_weak(){
 509     set_weak no $*
 510 }
 511
 512 enable_safe(){
 513     for var; do
 514         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 515     done
 516 }
 517
 518 disable_safe(){
 519     for var; do
 520         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 521     done
 522 }
 523
 524 do_enable_deep(){
 525     for var; do
 526         enabled $var && continue
 527         eval sel="\$${var}_select"
 528         eval sgs="\$${var}_suggest"
 529         pushvar var sgs
 530         enable_deep $sel
 531         popvar sgs
 532         enable_deep_weak $sgs
 533         popvar var
 534     done
 535 }
 536
 537 enable_deep(){
 538     do_enable_deep $*
 539     enable $*
 540 }
 541
 542 enable_deep_weak(){
 543     do_enable_deep $*
 544     enable_weak $*
 545 }
 546
 547 enabled(){
 548     test "${1#!}" = "$1" && op== || op=!=
 549     eval test "x\$${1#!}" $op "xyes"
 550 }
 551
 552 disabled(){
 553     test "${1#!}" = "$1" && op== || op=!=
 554     eval test "x\$${1#!}" $op "xno"
 555 }
 556
 557 enabled_all(){
 558     for opt; do
 559         enabled $opt || return 1
 560     done
 561 }
 562
 563 disabled_all(){
 564     for opt; do
 565         disabled $opt || return 1
 566     done
 567 }
 568
 569 enabled_any(){
 570     for opt; do
 571         enabled $opt && return 0
 572     done
 573 }
 574
 575 disabled_any(){
 576     for opt; do
 577         disabled $opt && return 0
 578     done
 579     return 1
 580 }
 581
 582 set_default(){
 583     for opt; do
 584         eval : \${$opt:=\$${opt}_default}
 585     done
 586 }
 587
 588 is_in(){
 589     value=$1
 590     shift
 591     for var in $*; do
 592         [ $var = $value ] && return 0
 593     done
 594     return 1
 595 }
 596
 597 do_check_deps(){
 598     for cfg; do
 599         cfg="${cfg#!}"
 600         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 601         disabled ${cfg}_checking && continue
 602         enable ${cfg}_checking
 603         append allopts $cfg
 604
 605         eval dep_all="\$${cfg}_deps"
 606         eval dep_any="\$${cfg}_deps_any"
 607         eval dep_sel="\$${cfg}_select"
 608         eval dep_sgs="\$${cfg}_suggest"
 609         eval dep_ifa="\$${cfg}_if"
 610         eval dep_ifn="\$${cfg}_if_any"
 611
 612         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 613         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 614         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 615
 616         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 617         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 618         enabled_all  $dep_all || disable $cfg
 619         enabled_any  $dep_any || disable $cfg
 620         disabled_any $dep_sel && disable $cfg
 621
 622         if enabled $cfg; then
 623             enable_deep $dep_sel
 624             enable_deep_weak $dep_sgs
 625         fi
 626
 627         disable ${cfg}_checking
 628     done
 629 }
 630
 631 check_deps(){
 632     unset allopts
 633
 634     do_check_deps "$@"
 635
 636     for cfg in $allopts; do
 637         enabled $cfg || continue
 638         eval dep_extralibs="\$${cfg}_extralibs"
 639         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 640     done
 641 }
 642
 643 print_config(){
 644     pfx=$1
 645     files=$2
 646     shift 2
 647     map 'eval echo "$v \${$v:-no}"' "$@" |
 648     awk "BEGIN { split(\"$files\", files) }
 649         {
 650             c = \"$pfx\" toupper(\$1);
 651             v = \$2;
 652             sub(/yes/, 1, v);
 653             sub(/no/,  0, v);
 654             for (f in files) {
 655                 file = files[f];
 656                 if (file ~ /\\.h\$/) {
 657                     printf(\"#define %s %d\\n\", c, v) >>file;
 658                 } else if (file ~ /\\.asm\$/) {
 659                     printf(\"%%define %s %d\\n\", c, v) >>file;
 660                 } else if (file ~ /\\.mak\$/) {
 661                     n = -v ? \"\" : \"!\";
 662                     printf(\"%s%s=yes\\n\", n, c) >>file;
 663                 } else if (file ~ /\\.texi\$/) {
 664                     pre = -v ? \"\" : \"@c \";
 665                     yesno = \$2;
 666                     c2 = tolower(c);
 667                     gsub(/_/, \"-\", c2);
 668                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 669                 }
 670             }
 671         }"
 672 }
 673
 674 print_enabled(){
 675     suf=$1
 676     shift
 677     for v; do
 678         enabled $v && printf "%s\n" ${v%$suf};
 679     done
 680 }
 681
 682 append(){
 683     var=$1
 684     shift
 685     eval "$var=\"\$$var $*\""
 686 }
 687
 688 prepend(){
 689     var=$1
 690     shift
 691     eval "$var=\"$* \$$var\""
 692 }
 693
 694 add_cppflags(){
 695     append CPPFLAGS "$@"
 696 }
 697
 698 add_cflags(){
 699     append CFLAGS $($cflags_filter "$@")
 700 }
 701
 702 add_cxxflags(){
 703     append CXXFLAGS $($cflags_filter "$@")
 704 }
 705
 706 add_asflags(){
 707     append ASFLAGS $($asflags_filter "$@")
 708 }
 709
 710 add_ldflags(){
 711     append LDFLAGS $($ldflags_filter "$@")
 712 }
 713
 714 add_extralibs(){
 715     prepend extralibs $($ldflags_filter "$@")
 716 }
 717
 718 add_host_cppflags(){
 719     append host_cppflags "$@"
 720 }
 721
 722 add_host_cflags(){
 723     append host_cflags $($host_cflags_filter "$@")
 724 }
 725
 726 add_host_ldflags(){
 727     append host_ldflags $($host_ldflags_filter "$@")
 728 }
 729
 730 add_compat(){
 731     append compat_objs $1
 732     shift
 733     map 'add_cppflags -D$v' "$@"
 734 }
 735
 736 check_cmd(){
 737     log "$@"
 738     "$@" >> $logfile 2>&1
 739 }
 740
 741 cc_o(){
 742     eval printf '%s\\n' $CC_O
 743 }
 744
 745 cc_e(){
 746     eval printf '%s\\n' $CC_E
 747 }
 748
 749 check_cc(){
 750     log check_cc "$@"
 751     cat > $TMPC
 752     log_file $TMPC
 753     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 754 }
 755
 756 check_cxx(){
 757     log check_cxx "$@"
 758     cat > $TMPCPP
 759     log_file $TMPCPP
 760     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 761 }
 762
 763 check_cpp(){
 764     log check_cpp "$@"
 765     cat > $TMPC
 766     log_file $TMPC
 767     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 768 }
 769
 770 as_o(){
 771     eval printf '%s\\n' $AS_O
 772 }
 773
 774 check_as(){
 775     log check_as "$@"
 776     cat > $TMPS
 777     log_file $TMPS
 778     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 779 }
 780
 781 check_inline_asm(){
 782     log check_inline_asm "$@"
 783     name="$1"
 784     code="$2"
 785     shift 2
 786     disable $name
 787     check_cc "$@" <<EOF && enable $name
 788 void foo(void){ __asm__ volatile($code); }
 789 EOF
 790 }
 791
 792 check_insn(){
 793     log check_insn "$@"
 794     check_inline_asm ${1}_inline "\"$2\""
 795     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 796 }
 797
 798 check_yasm(){
 799     log check_yasm "$@"
 800     echo "$1" > $TMPS
 801     log_file $TMPS
 802     shift 1
 803     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 804 }
 805
 806 ld_o(){
 807     eval printf '%s\\n' $LD_O
 808 }
 809
 810 check_ld(){
 811     log check_ld "$@"
 812     type=$1
 813     shift 1
 814     flags=$(filter_out '-l*|*.so' $@)
 815     libs=$(filter '-l*|*.so' $@)
 816     check_$type $($cflags_filter $flags) || return
 817     flags=$($ldflags_filter $flags)
 818     libs=$($ldflags_filter $libs)
 819     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 820 }
 821
 822 check_code(){
 823     log check_code "$@"
 824     check=$1
 825     headers=$2
 826     code=$3
 827     shift 3
 828     {
 829         for hdr in $headers; do
 830             echo "#include <$hdr>"
 831         done
 832         echo "int main(void) { $code; return 0; }"
 833     } | check_$check "$@"
 834 }
 835
 836 check_cppflags(){
 837     log check_cppflags "$@"
 838     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 839 int x;
 840 EOF
 841 }
 842
 843 check_cflags(){
 844     log check_cflags "$@"
 845     set -- $($cflags_filter "$@")
 846     check_cc "$@" <<EOF && append CFLAGS "$@"
 847 int x;
 848 EOF
 849 }
 850
 851 check_cxxflags(){
 852     log check_cxxflags "$@"
 853     set -- $($cflags_filter "$@")
 854     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 855 int x;
 856 EOF
 857 }
 858
 859 test_ldflags(){
 860     log test_ldflags "$@"
 861     check_ld "cc" "$@" <<EOF
 862 int main(void){ return 0; }
 863 EOF
 864 }
 865
 866 check_ldflags(){
 867     log check_ldflags "$@"
 868     test_ldflags "$@" && add_ldflags "$@"
 869 }
 870
 871 check_header(){
 872     log check_header "$@"
 873     header=$1
 874     shift
 875     disable_safe $header
 876     check_cpp "$@" <<EOF && enable_safe $header
 877 #include <$header>
 878 int x;
 879 EOF
 880 }
 881
 882 check_func(){
 883     log check_func "$@"
 884     func=$1
 885     shift
 886     disable $func
 887     check_ld "cc" "$@" <<EOF && enable $func
 888 extern int $func();
 889 int main(void){ $func(); }
 890 EOF
 891 }
 892
 893 check_mathfunc(){
 894     log check_mathfunc "$@"
 895     func=$1
 896     narg=$2
 897     shift 2
 898     test $narg = 2 && args="f, g" || args="f"
 899     disable $func
 900     check_ld "cc" "$@" <<EOF && enable $func
 901 #include <math.h>
 902 float foo(float f, float g) { return $func($args); }
 903 int main(void){ return (int) foo; }
 904 EOF
 905 }
 906
 907 check_func_headers(){
 908     log check_func_headers "$@"
 909     headers=$1
 910     funcs=$2
 911     shift 2
 912     {
 913         for hdr in $headers; do
 914             echo "#include <$hdr>"
 915         done
 916         for func in $funcs; do
 917             echo "long check_$func(void) { return (long) $func; }"
 918         done
 919         echo "int main(void) { return 0; }"
 920     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 921 }
 922
 923 check_class_headers_cpp(){
 924     log check_class_headers_cpp "$@"
 925     headers=$1
 926     classes=$2
 927     shift 2
 928     {
 929         for hdr in $headers; do
 930             echo "#include <$hdr>"
 931         done
 932         echo "int main(void) { "
 933         i=1
 934         for class in $classes; do
 935             echo "$class obj$i;"
 936             i=$(expr $i + 1)
 937         done
 938         echo "return 0; }"
 939     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 940 }
 941
 942 check_cpp_condition(){
 943     log check_cpp_condition "$@"
 944     header=$1
 945     condition=$2
 946     shift 2
 947     check_cpp "$@" <<EOF
 948 #include <$header>
 949 #if !($condition)
 950 #error "unsatisfied condition: $condition"
 951 #endif
 952 EOF
 953 }
 954
 955 check_lib(){
 956     log check_lib "$@"
 957     header="$1"
 958     func="$2"
 959     shift 2
 960     check_header $header && check_func $func "$@" && add_extralibs "$@"
 961 }
 962
 963 check_lib2(){
 964     log check_lib2 "$@"
 965     headers="$1"
 966     funcs="$2"
 967     shift 2
 968     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 969 }
 970
 971 check_lib_cpp(){
 972     log check_lib_cpp "$@"
 973     headers="$1"
 974     classes="$2"
 975     shift 2
 976     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 977 }
 978
 979 check_pkg_config(){
 980     log check_pkg_config "$@"
 981     pkg="$1"
 982     headers="$2"
 983     funcs="$3"
 984     shift 3
 985     $pkg_config --exists $pkg 2>/dev/null || return
 986     pkg_cflags=$($pkg_config --cflags $pkg)
 987     pkg_libs=$($pkg_config --libs $pkg)
 988     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 989         set_safe ${pkg}_cflags $pkg_cflags   &&
 990         set_safe ${pkg}_libs   $pkg_libs
 991 }
 992
 993 check_exec(){
 994     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 995 }
 996
 997 check_exec_crash(){
 998     code=$(cat)
 999
1000     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1001     # are safe but may not be available everywhere.  Thus we use
1002     # raise(SIGTERM) instead.  The check is run in a subshell so we
1003     # can redirect the "Terminated" message from the shell.  SIGBUS
1004     # is not defined by standard C so it is used conditionally.
1005
1006     (check_exec "$@") >> $logfile 2>&1 <<EOF
1007 #include <signal.h>
1008 static void sighandler(int sig){
1009     raise(SIGTERM);
1010 }
1011 int func(void){
1012     $code
1013 }
1014 int (*func_ptr)(void) = func;
1015 int main(void){
1016     signal(SIGILL, sighandler);
1017     signal(SIGFPE, sighandler);
1018     signal(SIGSEGV, sighandler);
1019 #ifdef SIGBUS
1020     signal(SIGBUS, sighandler);
1021 #endif
1022     return func_ptr();
1023 }
1024 EOF
1025 }
1026
1027 check_type(){
1028     log check_type "$@"
1029     headers=$1
1030     type=$2
1031     shift 2
1032     disable_safe "$type"
1033     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1034 }
1035
1036 check_struct(){
1037     log check_struct "$@"
1038     headers=$1
1039     struct=$2
1040     member=$3
1041     shift 3
1042     disable_safe "${struct}_${member}"
1043     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1044         enable_safe "${struct}_${member}"
1045 }
1046
1047 check_builtin(){
1048     log check_builtin "$@"
1049     name=$1
1050     headers=$2
1051     builtin=$3
1052     shift 3
1053     disable "$name"
1054     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1055 }
1056
1057 require(){
1058     name="$1"
1059     header="$2"
1060     func="$3"
1061     shift 3
1062     check_lib $header $func "$@" || die "ERROR: $name not found"
1063 }
1064
1065 require2(){
1066     name="$1"
1067     headers="$2"
1068     func="$3"
1069     shift 3
1070     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1071 }
1072
1073 require_cpp(){
1074     name="$1"
1075     headers="$2"
1076     classes="$3"
1077     shift 3
1078     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1079 }
1080
1081 require_pkg_config(){
1082     pkg="$1"
1083     check_pkg_config "$@" || die "ERROR: $pkg not found"
1084     add_cflags    $(get_safe ${pkg}_cflags)
1085     add_extralibs $(get_safe ${pkg}_libs)
1086 }
1087
1088 hostcc_o(){
1089     eval printf '%s\\n' $HOSTCC_O
1090 }
1091
1092 check_host_cc(){
1093     log check_host_cc "$@"
1094     cat > $TMPC
1095     log_file $TMPC
1096     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1097 }
1098
1099 check_host_cppflags(){
1100     log check_host_cppflags "$@"
1101     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1102 int x;
1103 EOF
1104 }
1105
1106 check_host_cflags(){
1107     log check_host_cflags "$@"
1108     set -- $($host_cflags_filter "$@")
1109     check_host_cc "$@" <<EOF && append host_cflags "$@"
1110 int x;
1111 EOF
1112 }
1113
1114 apply(){
1115     file=$1
1116     shift
1117     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1118 }
1119
1120 cp_if_changed(){
1121     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1122     mkdir -p "$(dirname $2)"
1123     $cp_f "$1" "$2"
1124 }
1125
1126 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1127 # system-dependent things.
1128
1129 COMPONENT_LIST="
1130     bsfs
1131     decoders
1132     demuxers
1133     encoders
1134     filters
1135     hwaccels
1136     indevs
1137     muxers
1138     outdevs
1139     parsers
1140     protocols
1141 "
1142
1143 EXTERNAL_LIBRARY_LIST="
1144     avisynth
1145     bzlib
1146     crystalhd
1147     fontconfig
1148     frei0r
1149     gnutls
1150     iconv
1151     libaacplus
1152     libass
1153     libbluray
1154     libcaca
1155     libcdio
1156     libcelt
1157     libdc1394
1158     libfaac
1159     libfdk_aac
1160     libflite
1161     libfreetype
1162     libgsm
1163     libiec61883
1164     libilbc
1165     libmodplug
1166     libmp3lame
1167     libnut
1168     libopencore_amrnb
1169     libopencore_amrwb
1170     libopencv
1171     libopenjpeg
1172     libopus
1173     libpulse
1174     libquvi
1175     librtmp
1176     libschroedinger
1177     libshine
1178     libsoxr
1179     libspeex
1180     libstagefright_h264
1181     libtheora
1182     libtwolame
1183     libutvideo
1184     libv4l2
1185     libvidstab
1186     libvo_aacenc
1187     libvo_amrwbenc
1188     libvorbis
1189     libvpx
1190     libx264
1191     libxavs
1192     libxvid
1193     openal
1194     opencl
1195     openssl
1196     x11grab
1197     zlib
1198 "
1199
1200 DOCUMENT_LIST="
1201     doc
1202     htmlpages
1203     manpages
1204     podpages
1205     txtpages
1206 "
1207
1208 HWACCEL_LIST="
1209     dxva2
1210     vaapi
1211     vda
1212     vdpau
1213 "
1214
1215 LIBRARY_LIST="
1216     avcodec
1217     avdevice
1218     avfilter
1219     avformat
1220     avresample
1221     avutil
1222     postproc
1223     swresample
1224     swscale
1225 "
1226
1227 PROGRAM_LIST="
1228     ffplay
1229     ffprobe
1230     ffserver
1231     ffmpeg
1232 "
1233
1234 CONFIG_LIST="
1235     $COMPONENT_LIST
1236     $DOCUMENT_LIST
1237     $EXTERNAL_LIBRARY_LIST
1238     $HWACCEL_LIST
1239     $LIBRARY_LIST
1240     $PROGRAM_LIST
1241     dct
1242     dwt
1243     error_resilience
1244     fast_unaligned
1245     fft
1246     ftrapv
1247     gpl
1248     gray
1249     hardcoded_tables
1250     incompatible_fork_abi
1251     lsp
1252     lzo
1253     mdct
1254     memalign_hack
1255     memory_poisoning
1256     network
1257     nonfree
1258     pic
1259     rdft
1260     runtime_cpudetect
1261     safe_bitstream_reader
1262     shared
1263     small
1264     sram
1265     static
1266     swscale_alpha
1267     thumb
1268     version3
1269     xmm_clobber_test
1270 "
1271
1272 THREADS_LIST='
1273     pthreads
1274     w32threads
1275     os2threads
1276 '
1277
1278 ATOMICS_LIST='
1279     atomics_gcc
1280     atomics_suncc
1281     atomics_win32
1282 '
1283
1284 ARCH_LIST='
1285     aarch64
1286     alpha
1287     arm
1288     avr32
1289     avr32_ap
1290     avr32_uc
1291     bfin
1292     ia64
1293     m68k
1294     mips
1295     mips64
1296     parisc
1297     ppc
1298     ppc64
1299     s390
1300     sh4
1301     sparc
1302     sparc64
1303     tilegx
1304     tilepro
1305     tomi
1306     x86
1307     x86_32
1308     x86_64
1309 '
1310
1311 ARCH_EXT_LIST_ARM='
1312     armv5te
1313     armv6
1314     armv6t2
1315     neon
1316     vfp
1317     vfpv3
1318 '
1319
1320 ARCH_EXT_LIST_X86='
1321     amd3dnow
1322     amd3dnowext
1323     avx
1324     fma4
1325     mmx
1326     mmxext
1327     sse
1328     sse2
1329     sse3
1330     sse4
1331     sse42
1332     ssse3
1333 '
1334
1335 ARCH_EXT_LIST="
1336     $ARCH_EXT_LIST_ARM
1337     $ARCH_EXT_LIST_X86
1338     altivec
1339     ppc4xx
1340     vis
1341     mipsfpu
1342     mips32r2
1343     mipsdspr1
1344     mipsdspr2
1345 "
1346
1347 HAVE_LIST_CMDLINE='
1348     inline_asm
1349     symver
1350     yasm
1351 '
1352
1353 HAVE_LIST_PUB='
1354     bigendian
1355     fast_unaligned
1356     incompatible_fork_abi
1357 '
1358
1359 MATH_FUNCS="
1360     atanf
1361     atan2f
1362     cbrt
1363     cbrtf
1364     cosf
1365     exp2
1366     exp2f
1367     expf
1368     isinf
1369     isnan
1370     ldexpf
1371     llrint
1372     llrintf
1373     log2
1374     log2f
1375     log10f
1376     lrint
1377     lrintf
1378     powf
1379     rint
1380     round
1381     roundf
1382     sinf
1383     trunc
1384     truncf
1385 "
1386
1387 HAVE_LIST="
1388     $ARCH_EXT_LIST
1389     $(add_suffix _external $ARCH_EXT_LIST)
1390     $(add_suffix _inline   $ARCH_EXT_LIST)
1391     $HAVE_LIST_CMDLINE
1392     $HAVE_LIST_PUB
1393     $THREADS_LIST
1394     $ATOMICS_LIST
1395     $MATH_FUNCS
1396     access
1397     aligned_malloc
1398     aligned_stack
1399     alsa_asoundlib_h
1400     altivec_h
1401     arpa_inet_h
1402     asm_mod_q
1403     asm_mod_y
1404     asm_types_h
1405     atomic_cas_ptr
1406     atomics_native
1407     attribute_may_alias
1408     attribute_packed
1409     cdio_paranoia_h
1410     cdio_paranoia_paranoia_h
1411     clock_gettime
1412     closesocket
1413     cmov
1414     CommandLineToArgvW
1415     cpunop
1416     CryptGenRandom
1417     dcbzl
1418     dev_bktr_ioctl_bt848_h
1419     dev_bktr_ioctl_meteor_h
1420     dev_ic_bt8xx_h
1421     dev_video_bktr_ioctl_bt848_h
1422     dev_video_meteor_ioctl_meteor_h
1423     direct_h
1424     dlfcn_h
1425     dlopen
1426     dos_paths
1427     dxva_h
1428     ebp_available
1429     ebx_available
1430     fast_64bit
1431     fast_clz
1432     fast_cmov
1433     fcntl
1434     fork
1435     getaddrinfo
1436     gethrtime
1437     getopt
1438     GetProcessAffinityMask
1439     GetProcessMemoryInfo
1440     GetProcessTimes
1441     GetSystemTimeAsFileTime
1442     getrusage
1443     getservbyport
1444     gettimeofday
1445     glob
1446     gnu_as
1447     gsm_h
1448     ibm_asm
1449     inet_aton
1450     io_h
1451     isatty
1452     jack_port_get_latency_range
1453     kbhit
1454     ldbrx
1455     libdc1394_1
1456     libdc1394_2
1457     local_aligned_16
1458     local_aligned_8
1459     localtime_r
1460     loongson
1461     lzo1x_999_compress
1462     machine_ioctl_bt848_h
1463     machine_ioctl_meteor_h
1464     machine_rw_barrier
1465     makeinfo
1466     malloc_h
1467     MapViewOfFile
1468     memalign
1469     MemoryBarrier
1470     mkstemp
1471     mm_empty
1472     mmap
1473     mprotect
1474     msvcrt
1475     nanosleep
1476     openjpeg_1_5_openjpeg_h
1477     PeekNamedPipe
1478     perl
1479     pod2man
1480     poll_h
1481     posix_memalign
1482     pthread_cancel
1483     rdtsc
1484     rsync_contimeout
1485     sched_getaffinity
1486     sdl
1487     SetConsoleTextAttribute
1488     setmode
1489     setrlimit
1490     Sleep
1491     sndio_h
1492     socklen_t
1493     soundcard_h
1494     strerror_r
1495     struct_addrinfo
1496     struct_group_source_req
1497     struct_ip_mreq_source
1498     struct_ipv6_mreq
1499     struct_pollfd
1500     struct_rusage_ru_maxrss
1501     struct_sctp_event_subscribe
1502     struct_sockaddr_in6
1503     struct_sockaddr_sa_len
1504     struct_sockaddr_storage
1505     struct_v4l2_frmivalenum_discrete
1506     symver_asm_label
1507     symver_gnu_asm
1508     sync_val_compare_and_swap
1509     sysconf
1510     sysctl
1511     sys_mman_h
1512     sys_param_h
1513     sys_resource_h
1514     sys_select_h
1515     sys_soundcard_h
1516     sys_time_h
1517     sys_videoio_h
1518     termios_h
1519     texi2html
1520     threads
1521     unistd_h
1522     usleep
1523     vfp_args
1524     VirtualAlloc
1525     windows_h
1526     winsock2_h
1527     xform_asm
1528     xmm_clobbers
1529 "
1530
1531 # options emitted with CONFIG_ prefix but not available on the command line
1532 CONFIG_EXTRA="
1533     aandcttables
1534     ac3dsp
1535     audio_frame_queue
1536     dsputil
1537     frame_thread_encoder
1538     gcrypt
1539     golomb
1540     gplv3
1541     h264chroma
1542     h264dsp
1543     h264pred
1544     h264qpel
1545     hpeldsp
1546     huffman
1547     lgplv3
1548     lpc
1549     mpegaudio
1550     mpegaudiodsp
1551     mpegvideo
1552     mpegvideoenc
1553     nettle
1554     rangecoder
1555     rtpdec
1556     rtpenc_chain
1557     sinewin
1558     videodsp
1559     vp3dsp
1560 "
1561
1562 CMDLINE_SELECT="
1563     $ARCH_EXT_LIST
1564     $CONFIG_LIST
1565     $HAVE_LIST_CMDLINE
1566     $THREADS_LIST
1567     asm
1568     cross_compile
1569     debug
1570     extra_warnings
1571     logging
1572     lto
1573     optimizations
1574     stripping
1575 "
1576
1577 PATHS_LIST='
1578     bindir
1579     datadir
1580     incdir
1581     libdir
1582     mandir
1583     prefix
1584     shlibdir
1585 '
1586
1587 CMDLINE_SET="
1588     $PATHS_LIST
1589     ar
1590     arch
1591     as
1592     assert_level
1593     build_suffix
1594     cc
1595     cpu
1596     cross_prefix
1597     cxx
1598     dep_cc
1599     extra_version
1600     host_cc
1601     host_cflags
1602     host_ld
1603     host_ldflags
1604     host_libs
1605     host_os
1606     install
1607     ld
1608     logfile
1609     malloc_prefix
1610     nm
1611     optflags
1612     pkg_config
1613     progs_suffix
1614     random_seed
1615     samples
1616     strip
1617     sysinclude
1618     sysroot
1619     target_exec
1620     target_os
1621     target_path
1622     toolchain
1623     valgrind
1624     yasmexe
1625 "
1626
1627 CMDLINE_APPEND="
1628     extra_cflags
1629     extra_cxxflags
1630     host_cppflags
1631 "
1632
1633 # code dependency declarations
1634
1635 # architecture extensions
1636
1637 armv5te_deps="arm"
1638 armv6_deps="arm"
1639 armv6t2_deps="arm"
1640 neon_deps="arm"
1641 vfp_deps="arm"
1642 vfpv3_deps="vfp"
1643
1644 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1645
1646 mipsfpu_deps="mips"
1647 mips32r2_deps="mips"
1648 mipsdspr1_deps="mips"
1649 mipsdspr2_deps="mips"
1650
1651 altivec_deps="ppc"
1652 ppc4xx_deps="ppc"
1653
1654 vis_deps="sparc"
1655
1656 x86_64_suggest="cmov fast_cmov"
1657
1658 amd3dnow_deps="mmx"
1659 amd3dnowext_deps="amd3dnow"
1660 mmx_deps="x86"
1661 mmxext_deps="mmx"
1662 sse_deps="mmxext"
1663 sse2_deps="sse"
1664 sse3_deps="sse2"
1665 ssse3_deps="sse3"
1666 sse4_deps="ssse3"
1667 sse42_deps="sse4"
1668 avx_deps="sse42"
1669 fma4_deps="avx"
1670
1671 mmx_external_deps="yasm"
1672 mmx_inline_deps="inline_asm"
1673 mmx_suggest="mmx_external mmx_inline"
1674
1675 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1676     eval dep=\$${ext}_deps
1677     eval ${ext}_external_deps='"${dep}_external"'
1678     eval ${ext}_inline_deps='"${dep}_inline"'
1679     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1680 done
1681
1682 aligned_stack_if_any="ppc x86"
1683 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1684 fast_clz_if_any="alpha avr32 mips ppc x86"
1685 fast_unaligned_if_any="ppc x86"
1686
1687 inline_asm_deps="!tms470"
1688 need_memalign="altivec neon sse"
1689
1690 symver_if_any="symver_asm_label symver_gnu_asm"
1691
1692 log2_deps="!msvcrt"
1693
1694 # subsystems
1695 dct_select="rdft"
1696 error_resilience_select="dsputil"
1697 frame_thread_encoder_deps="encoders threads"
1698 lpc_select="dsputil"
1699 mdct_select="fft"
1700 rdft_select="fft"
1701 mpegaudio_select="mpegaudiodsp"
1702 mpegaudiodsp_select="dct"
1703 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1704 mpegvideoenc_select="mpegvideo"
1705
1706 # decoders / encoders
1707 aac_decoder_select="mdct sinewin"
1708 aac_encoder_select="audio_frame_queue mdct sinewin"
1709 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1710 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1711 ac3_encoder_select="mdct ac3dsp dsputil"
1712 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1713 alac_encoder_select="lpc"
1714 als_decoder_select="dsputil"
1715 amrnb_decoder_select="lsp"
1716 amrwb_decoder_select="lsp"
1717 amv_decoder_select="dsputil hpeldsp"
1718 amv_encoder_select="aandcttables"
1719 ape_decoder_select="dsputil"
1720 asv1_decoder_select="dsputil"
1721 asv1_encoder_select="dsputil"
1722 asv2_decoder_select="dsputil"
1723 asv2_encoder_select="dsputil"
1724 atrac1_decoder_select="mdct sinewin"
1725 atrac3_decoder_select="mdct"
1726 bink_decoder_select="dsputil hpeldsp"
1727 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1728 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1729 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1730 cllc_decoder_select="dsputil"
1731 comfortnoise_encoder_select="lpc"
1732 cook_decoder_select="dsputil mdct sinewin"
1733 cscd_decoder_select="lzo"
1734 cscd_decoder_suggest="zlib"
1735 dca_decoder_select="mdct"
1736 dirac_decoder_select="dsputil dwt golomb videodsp"
1737 dnxhd_decoder_select="dsputil"
1738 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1739 dvvideo_decoder_select="dsputil"
1740 dvvideo_encoder_select="dsputil"
1741 dxa_decoder_select="zlib"
1742 eac3_decoder_select="ac3_decoder"
1743 eac3_encoder_select="ac3_encoder"
1744 eamad_decoder_select="aandcttables dsputil mpegvideo"
1745 eatgq_decoder_select="aandcttables"
1746 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1747 exr_decoder_select="zlib"
1748 ffv1_decoder_select="dsputil golomb rangecoder"
1749 ffv1_encoder_select="dsputil rangecoder"
1750 ffvhuff_decoder_select="dsputil"
1751 ffvhuff_encoder_select="dsputil huffman"
1752 flac_decoder_select="golomb"
1753 flac_encoder_select="dsputil golomb lpc"
1754 flashsv_decoder_select="zlib"
1755 flashsv_encoder_select="zlib"
1756 flashsv2_encoder_select="zlib"
1757 flashsv2_decoder_select="zlib"
1758 flv_decoder_select="h263_decoder"
1759 flv_encoder_select="h263_encoder"
1760 fourxm_decoder_select="dsputil"
1761 fraps_decoder_select="dsputil huffman"
1762 g729_decoder_select="dsputil"
1763 h261_decoder_select="error_resilience mpegvideo"
1764 h261_encoder_select="aandcttables mpegvideoenc"
1765 h263_decoder_select="error_resilience h263_parser mpegvideo"
1766 h263_encoder_select="aandcttables mpegvideoenc"
1767 h263i_decoder_select="h263_decoder"
1768 h263p_encoder_select="h263_encoder"
1769 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1770 h264_decoder_suggest="error_resilience"
1771 huffyuv_decoder_select="dsputil"
1772 huffyuv_encoder_select="dsputil huffman"
1773 iac_decoder_select="dsputil fft mdct sinewin"
1774 imc_decoder_select="dsputil fft mdct sinewin"
1775 indeo3_decoder_select="hpeldsp"
1776 interplay_video_decoder_select="hpeldsp"
1777 jpegls_decoder_select="dsputil golomb hpeldsp"
1778 jpegls_encoder_select="golomb"
1779 jv_decoder_select="dsputil"
1780 lagarith_decoder_select="dsputil"
1781 ljpeg_encoder_select="aandcttables mpegvideoenc"
1782 loco_decoder_select="golomb"
1783 mdec_decoder_select="dsputil error_resilience mpegvideo"
1784 mimic_decoder_select="dsputil hpeldsp"
1785 mjpeg_decoder_select="dsputil hpeldsp"
1786 mjpegb_decoder_select="dsputil hpeldsp"
1787 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1788 mlp_decoder_select="dsputil mlp_parser"
1789 motionpixels_decoder_select="dsputil"
1790 mp1_decoder_select="mpegaudio"
1791 mp1float_decoder_select="mpegaudio"
1792 mp2_decoder_select="mpegaudio"
1793 mp2float_decoder_select="mpegaudio"
1794 mp3_decoder_select="mpegaudio"
1795 mp3adu_decoder_select="mpegaudio"
1796 mp3adufloat_decoder_select="mpegaudio"
1797 mp3float_decoder_select="mpegaudio"
1798 mp3on4_decoder_select="mpegaudio"
1799 mp3on4float_decoder_select="mpegaudio"
1800 mpc7_decoder_select="dsputil mpegaudiodsp"
1801 mpc8_decoder_select="dsputil mpegaudiodsp"
1802 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1803 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1804 mpeg1video_decoder_select="error_resilience mpegvideo"
1805 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1806 mpeg2video_decoder_select="error_resilience mpegvideo"
1807 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1808 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1809 mpeg4_encoder_select="h263_encoder"
1810 msmpeg4v1_decoder_select="h263_decoder"
1811 msmpeg4v2_decoder_select="h263_decoder"
1812 msmpeg4v2_encoder_select="h263_encoder"
1813 msmpeg4v3_decoder_select="h263_decoder"
1814 msmpeg4v3_encoder_select="h263_encoder"
1815 mss2_decoder_select="error_resilience vc1_decoder"
1816 mxpeg_decoder_select="dsputil hpeldsp"
1817 nellymoser_decoder_select="mdct sinewin"
1818 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1819 nuv_decoder_select="dsputil lzo"
1820 png_decoder_select="zlib"
1821 png_encoder_select="dsputil zlib"
1822 prores_decoder_select="dsputil"
1823 prores_encoder_select="dsputil"
1824 qcelp_decoder_select="lsp"
1825 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1826 ra_144_encoder_select="audio_frame_queue lpc"
1827 ralf_decoder_select="golomb"
1828 rtjpeg_decoder_select="dsputil"
1829 rv10_decoder_select="error_resilience h263_decoder"
1830 rv10_encoder_select="h263_encoder"
1831 rv20_decoder_select="error_resilience h263_decoder"
1832 rv20_encoder_select="h263_encoder"
1833 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1834 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1835 shorten_decoder_select="golomb"
1836 sipr_decoder_select="lsp"
1837 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1838 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1839 sonic_decoder_select="golomb"
1840 sonic_encoder_select="golomb"
1841 sonic_ls_encoder_select="golomb"
1842 sp5x_decoder_select="dsputil hpeldsp"
1843 svq1_decoder_select="hpeldsp"
1844 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1845 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1846 svq3_decoder_suggest="error_resilience zlib"
1847 tak_decoder_select="dsputil"
1848 theora_decoder_select="vp3_decoder"
1849 tiff_decoder_suggest="zlib"
1850 tiff_encoder_suggest="zlib"
1851 thp_decoder_select="dsputil hpeldsp"
1852 truehd_decoder_select="mlp_parser"
1853 truemotion2_decoder_select="dsputil"
1854 truespeech_decoder_select="dsputil"
1855 tscc_decoder_select="zlib"
1856 twinvq_decoder_select="mdct lsp sinewin"
1857 utvideo_decoder_select="dsputil"
1858 utvideo_encoder_select="dsputil huffman"
1859 vble_decoder_select="dsputil"
1860 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1861 vc1image_decoder_select="vc1_decoder"
1862 vorbis_decoder_select="mdct"
1863 vorbis_encoder_select="mdct"
1864 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1865 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1866 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1867 vp6a_decoder_select="vp6_decoder"
1868 vp6f_decoder_select="vp6_decoder"
1869 vp8_decoder_select="h264pred videodsp"
1870 wmapro_decoder_select="mdct sinewin"
1871 wmav1_decoder_select="mdct sinewin"
1872 wmav1_encoder_select="mdct sinewin"
1873 wmav2_decoder_select="mdct sinewin"
1874 wmav2_encoder_select="mdct sinewin"
1875 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1876 wmv1_decoder_select="h263_decoder"
1877 wmv1_encoder_select="h263_encoder"
1878 wmv2_decoder_select="h263_decoder videodsp"
1879 wmv2_encoder_select="h263_encoder"
1880 wmv3_decoder_select="vc1_decoder"
1881 wmv3image_decoder_select="wmv3_decoder"
1882 zerocodec_decoder_select="zlib"
1883 zlib_decoder_select="zlib"
1884 zlib_encoder_select="zlib"
1885 zmbv_decoder_select="zlib"
1886 zmbv_encoder_select="zlib"
1887
1888 # hardware accelerators
1889 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1890 dxva2_deps="dxva2api_h"
1891 vaapi_deps="va_va_h"
1892 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1893 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1894 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1895
1896 h263_vaapi_hwaccel_deps="vaapi"
1897 h263_vaapi_hwaccel_select="h263_decoder"
1898 h263_vdpau_hwaccel_deps="vdpau"
1899 h263_vdpau_hwaccel_select="h263_decoder"
1900 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1901 h264_dxva2_hwaccel_deps="dxva2"
1902 h264_dxva2_hwaccel_select="h264_decoder"
1903 h264_vaapi_hwaccel_deps="vaapi"
1904 h264_vaapi_hwaccel_select="h264_decoder"
1905 h264_vda_decoder_deps="vda"
1906 h264_vda_decoder_select="h264_decoder"
1907 h264_vda_hwaccel_deps="vda"
1908 h264_vda_hwaccel_select="h264_decoder"
1909 h264_vdpau_decoder_deps="vdpau"
1910 h264_vdpau_decoder_select="h264_decoder"
1911 h264_vdpau_hwaccel_deps="vdpau"
1912 h264_vdpau_hwaccel_select="h264_decoder"
1913 mpeg_vdpau_decoder_deps="vdpau"
1914 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1915 mpeg1_vdpau_decoder_deps="vdpau"
1916 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1917 mpeg1_vdpau_hwaccel_deps="vdpau"
1918 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1919 mpeg2_crystalhd_decoder_select="crystalhd"
1920 mpeg2_dxva2_hwaccel_deps="dxva2"
1921 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1922 mpeg2_vaapi_hwaccel_deps="vaapi"
1923 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1924 mpeg2_vdpau_hwaccel_deps="vdpau"
1925 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1926 mpeg4_crystalhd_decoder_select="crystalhd"
1927 mpeg4_vaapi_hwaccel_deps="vaapi"
1928 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1929 mpeg4_vdpau_decoder_deps="vdpau"
1930 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1931 mpeg4_vdpau_hwaccel_deps="vdpau"
1932 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1933 msmpeg4_crystalhd_decoder_select="crystalhd"
1934 vc1_crystalhd_decoder_select="crystalhd"
1935 vc1_dxva2_hwaccel_deps="dxva2"
1936 vc1_dxva2_hwaccel_select="vc1_decoder"
1937 vc1_vaapi_hwaccel_deps="vaapi"
1938 vc1_vaapi_hwaccel_select="vc1_decoder"
1939 vc1_vdpau_decoder_deps="vdpau"
1940 vc1_vdpau_decoder_select="vc1_decoder"
1941 vc1_vdpau_hwaccel_deps="vdpau"
1942 vc1_vdpau_hwaccel_select="vc1_decoder"
1943 wmv3_crystalhd_decoder_select="crystalhd"
1944 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1945 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1946 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1947 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1948
1949 # parsers
1950 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1951 mpeg4video_parser_select="error_resilience mpegvideo"
1952 mpegvideo_parser_select="error_resilience mpegvideo"
1953 vc1_parser_select="mpegvideo"
1954
1955 # external libraries
1956 libaacplus_encoder_deps="libaacplus"
1957 libcelt_decoder_deps="libcelt"
1958 libfaac_encoder_deps="libfaac"
1959 libfaac_encoder_select="audio_frame_queue"
1960 libfdk_aac_encoder_deps="libfdk_aac"
1961 libfdk_aac_encoder_select="audio_frame_queue"
1962 libgsm_decoder_deps="libgsm"
1963 libgsm_encoder_deps="libgsm"
1964 libgsm_ms_decoder_deps="libgsm"
1965 libgsm_ms_encoder_deps="libgsm"
1966 libilbc_decoder_deps="libilbc"
1967 libilbc_encoder_deps="libilbc"
1968 libmodplug_demuxer_deps="libmodplug"
1969 libmp3lame_encoder_deps="libmp3lame"
1970 libmp3lame_encoder_select="audio_frame_queue"
1971 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1972 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1973 libopencore_amrnb_encoder_select="audio_frame_queue"
1974 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1975 libopenjpeg_decoder_deps="libopenjpeg"
1976 libopenjpeg_encoder_deps="libopenjpeg"
1977 libopus_decoder_deps="libopus"
1978 libopus_encoder_deps="libopus"
1979 libopus_encoder_select="audio_frame_queue"
1980 libquvi_demuxer_deps="libquvi"
1981 libschroedinger_decoder_deps="libschroedinger"
1982 libschroedinger_encoder_deps="libschroedinger"
1983 libshine_encoder_deps="libshine"
1984 libshine_encoder_select="audio_frame_queue"
1985 libspeex_decoder_deps="libspeex"
1986 libspeex_encoder_deps="libspeex"
1987 libspeex_encoder_select="audio_frame_queue"
1988 libstagefright_h264_decoder_deps="libstagefright_h264"
1989 libtheora_encoder_deps="libtheora"
1990 libtwolame_encoder_deps="libtwolame"
1991 libvo_aacenc_encoder_deps="libvo_aacenc"
1992 libvo_aacenc_encoder_select="audio_frame_queue"
1993 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1994 libvorbis_decoder_deps="libvorbis"
1995 libvorbis_encoder_deps="libvorbis"
1996 libvorbis_encoder_select="audio_frame_queue"
1997 libvpx_vp8_decoder_deps="libvpx"
1998 libvpx_vp8_encoder_deps="libvpx"
1999 libvpx_vp9_decoder_deps="libvpx"
2000 libvpx_vp9_encoder_deps="libvpx"
2001 libx264_encoder_deps="libx264"
2002 libx264rgb_encoder_deps="libx264"
2003 libxavs_encoder_deps="libxavs"
2004 libxvid_encoder_deps="libxvid"
2005 libutvideo_decoder_deps="libutvideo"
2006 libutvideo_encoder_deps="libutvideo"
2007
2008 # demuxers / muxers
2009 ac3_demuxer_select="ac3_parser"
2010 asf_stream_muxer_select="asf_muxer"
2011 avisynth_demuxer_deps="avisynth"
2012 dirac_demuxer_select="dirac_parser"
2013 dts_demuxer_select="dca_parser"
2014 dtshd_demuxer_select="dca_parser"
2015 eac3_demuxer_select="ac3_parser"
2016 f4v_muxer_select="mov_muxer"
2017 flac_demuxer_select="flac_parser"
2018 ipod_muxer_select="mov_muxer"
2019 ismv_muxer_select="mov_muxer"
2020 libnut_demuxer_deps="libnut"
2021 libnut_muxer_deps="libnut"
2022 matroska_audio_muxer_select="matroska_muxer"
2023 matroska_demuxer_suggest="bzlib lzo zlib"
2024 mov_demuxer_suggest="zlib"
2025 mov_muxer_select="rtpenc_chain"
2026 mp3_demuxer_select="mpegaudio_parser"
2027 mp4_muxer_select="mov_muxer"
2028 mpegts_muxer_select="adts_muxer latm_muxer"
2029 mpegtsraw_demuxer_select="mpegts_demuxer"
2030 mxf_d10_muxer_select="mxf_muxer"
2031 ogg_demuxer_select="golomb"
2032 psp_muxer_select="mov_muxer"
2033 rtp_demuxer_select="sdp_demuxer"
2034 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2035 rtsp_demuxer_select="http_protocol rtpdec"
2036 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2037 sap_demuxer_select="sdp_demuxer"
2038 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2039 sdp_demuxer_select="rtpdec"
2040 smoothstreaming_muxer_select="ismv_muxer"
2041 spdif_muxer_select="aac_parser"
2042 tak_demuxer_select="tak_parser"
2043 tg2_muxer_select="mov_muxer"
2044 tgp_muxer_select="mov_muxer"
2045 vobsub_demuxer_select="mpegps_demuxer"
2046 w64_demuxer_deps="wav_demuxer"
2047 w64_muxer_deps="wav_muxer"
2048
2049 # indevs / outdevs
2050 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2051 alsa_outdev_deps="alsa_asoundlib_h"
2052 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2053 caca_outdev_deps="libcaca"
2054 dshow_indev_deps="IBaseFilter"
2055 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2056 dv1394_indev_deps="dv1394 dv_demuxer"
2057 fbdev_indev_deps="linux_fb_h"
2058 iec61883_indev_deps="libiec61883"
2059 jack_indev_deps="jack_jack_h sem_timedwait"
2060 lavfi_indev_deps="avfilter"
2061 libcdio_indev_deps="libcdio"
2062 libdc1394_indev_deps="libdc1394"
2063 libv4l2_indev_deps="libv4l2"
2064 openal_indev_deps="openal"
2065 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2066 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2067 pulse_indev_deps="libpulse"
2068 sdl_outdev_deps="sdl"
2069 sndio_indev_deps="sndio_h"
2070 sndio_outdev_deps="sndio_h"
2071 v4l_indev_deps="linux_videodev_h"
2072 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2073 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2074 vfwcap_indev_extralibs="-lavicap32"
2075 x11grab_indev_deps="x11grab"
2076
2077 # protocols
2078 bluray_protocol_deps="libbluray"
2079 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2080 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2081 ffrtmpcrypt_protocol_select="tcp_protocol"
2082 ffrtmphttp_protocol_deps="!librtmp_protocol"
2083 ffrtmphttp_protocol_select="http_protocol"
2084 gopher_protocol_select="network"
2085 httpproxy_protocol_select="tcp_protocol"
2086 http_protocol_select="tcp_protocol"
2087 https_protocol_select="tls_protocol"
2088 librtmp_protocol_deps="librtmp"
2089 librtmpe_protocol_deps="librtmp"
2090 librtmps_protocol_deps="librtmp"
2091 librtmpt_protocol_deps="librtmp"
2092 librtmpte_protocol_deps="librtmp"
2093 mmsh_protocol_select="http_protocol"
2094 mmst_protocol_select="network"
2095 rtmp_protocol_deps="!librtmp_protocol"
2096 rtmp_protocol_select="tcp_protocol"
2097 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2098 rtmps_protocol_deps="!librtmp_protocol"
2099 rtmps_protocol_select="tls_protocol"
2100 rtmpt_protocol_select="ffrtmphttp_protocol"
2101 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2102 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2103 rtp_protocol_select="udp_protocol"
2104 sctp_protocol_deps="struct_sctp_event_subscribe"
2105 sctp_protocol_select="network"
2106 srtp_protocol_select="rtp_protocol"
2107 tcp_protocol_select="network"
2108 tls_protocol_deps_any="openssl gnutls"
2109 tls_protocol_select="tcp_protocol"
2110 udp_protocol_select="network"
2111
2112 # filters
2113 aconvert_filter_deps="swresample"
2114 amovie_filter_deps="avcodec avformat"
2115 aresample_filter_deps="swresample"
2116 ass_filter_deps="libass"
2117 asyncts_filter_deps="avresample"
2118 atempo_filter_deps="avcodec rdft"
2119 blackframe_filter_deps="gpl"
2120 boxblur_filter_deps="gpl"
2121 colormatrix_filter_deps="gpl"
2122 cropdetect_filter_deps="gpl"
2123 delogo_filter_deps="gpl"
2124 deshake_filter_deps="avcodec"
2125 deshake_filter_select="dsputil"
2126 drawtext_filter_deps="libfreetype"
2127 ebur128_filter_deps="gpl"
2128 flite_filter_deps="libflite"
2129 frei0r_filter_deps="frei0r dlopen"
2130 frei0r_filter_extralibs='$ldl'
2131 frei0r_src_filter_deps="frei0r dlopen"
2132 frei0r_src_filter_extralibs='$ldl'
2133 geq_filter_deps="gpl"
2134 histeq_filter_deps="gpl"
2135 hqdn3d_filter_deps="gpl"
2136 hue_filter_deps="gpl"
2137 interlace_filter_deps="gpl"
2138 kerndeint_filter_deps="gpl"
2139 movie_filter_deps="avcodec avformat"
2140 mp_filter_deps="gpl avcodec swscale inline_asm"
2141 mpdecimate_filter_deps="gpl avcodec"
2142 mptestsrc_filter_deps="gpl"
2143 negate_filter_deps="lut_filter"
2144 noise_filter_deps="gpl"
2145 resample_filter_deps="avresample"
2146 ocv_filter_deps="libopencv"
2147 pan_filter_deps="swresample"
2148 pp_filter_deps="gpl postproc"
2149 removelogo_filter_deps="avcodec avformat swscale"
2150 scale_filter_deps="swscale"
2151 smartblur_filter_deps="gpl swscale"
2152 showspectrum_filter_deps="avcodec rdft"
2153 stereo3d_filter_deps="gpl"
2154 subtitles_filter_deps="avformat avcodec libass"
2155 super2xsai_filter_deps="gpl"
2156 tinterlace_filter_deps="gpl"
2157 vidstabdetect_filter_deps="libvidstab"
2158 vidstabtransform_filter_deps="libvidstab"
2159 yadif_filter_deps="gpl"
2160 pixfmts_super2xsai_test_deps="super2xsai_filter"
2161 tinterlace_merge_test_deps="tinterlace_filter"
2162 tinterlace_pad_test_deps="tinterlace_filter"
2163
2164 # libraries
2165 avcodec_deps="avutil"
2166 avdevice_deps="avutil avcodec avformat"
2167 avfilter_deps="avutil"
2168 avformat_deps="avutil avcodec"
2169 avresample_deps="avutil"
2170 postproc_deps="avutil gpl"
2171 swscale_deps="avutil"
2172
2173 # programs
2174 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2175 ffmpeg_select="format_filter aformat_filter
2176                setpts_filter null_filter anull_filter"
2177 ffplay_deps="avcodec avformat swscale swresample sdl"
2178 ffplay_select="rdft crop_filter"
2179 ffprobe_deps="avcodec avformat"
2180 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2181 ffserver_extralibs='$ldl'
2182
2183 # documentation
2184 podpages_deps="perl"
2185 manpages_deps="perl pod2man"
2186 htmlpages_deps="texi2html"
2187 txtpages_deps="makeinfo"
2188 doc_deps_any="manpages htmlpages podpages txtpages"
2189
2190 # default parameters
2191
2192 logfile="config.log"
2193
2194 # installation paths
2195 prefix_default="/usr/local"
2196 bindir_default='${prefix}/bin'
2197 datadir_default='${prefix}/share/ffmpeg'
2198 incdir_default='${prefix}/include'
2199 libdir_default='${prefix}/lib'
2200 mandir_default='${prefix}/share/man'
2201 shlibdir_default="$libdir_default"
2202
2203 # toolchain
2204 ar_default="ar"
2205 cc_default="gcc"
2206 cxx_default="g++"
2207 host_cc_default="gcc"
2208 cp_f="cp -f"
2209 install="install"
2210 ln_s="ln -s -f"
2211 nm_default="nm -g"
2212 objformat="elf"
2213 pkg_config_default=pkg-config
2214 ranlib="ranlib"
2215 strip_default="strip"
2216 yasmexe_default="yasm"
2217
2218 nogas=":"
2219
2220 # machine
2221 arch_default=$(uname -m)
2222 cpu="generic"
2223
2224 # OS
2225 target_os_default=$(tolower $(uname -s))
2226 host_os=$target_os_default
2227
2228 # configurable options
2229 enable $PROGRAM_LIST
2230 enable $DOCUMENT_LIST
2231 enable $(filter_out avresample $LIBRARY_LIST)
2232 enable stripping
2233
2234 enable asm
2235 enable debug
2236 enable doc
2237 enable optimizations
2238 enable runtime_cpudetect
2239 enable safe_bitstream_reader
2240 enable static
2241 enable swscale_alpha
2242
2243 # By default, enable only those hwaccels that have no external dependencies.
2244 enable dxva2 vdpau
2245
2246 # build settings
2247 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2248 FFSERVERLDFLAGS=-Wl,-E
2249 LIBPREF="lib"
2250 LIBSUF=".a"
2251 FULLNAME='$(NAME)$(BUILDSUF)'
2252 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2253 SLIBPREF="lib"
2254 SLIBSUF=".so"
2255 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2256 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2257 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2258 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2259 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2260 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2261
2262 asflags_filter=echo
2263 cflags_filter=echo
2264 ldflags_filter=echo
2265
2266 AS_C='-c'
2267 AS_O='-o $@'
2268 CC_C='-c'
2269 CC_E='-E -o $@'
2270 CC_O='-o $@'
2271 CXX_C='-c'
2272 CXX_O='-o $@'
2273 LD_O='-o $@'
2274 LD_LIB='-l%'
2275 LD_PATH='-L'
2276 HOSTCC_C='-c'
2277 HOSTCC_O='-o $@'
2278 HOSTLD_O='-o $@'
2279
2280 host_cflags='-O3 -g'
2281 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2282 host_libs='-lm'
2283 host_cflags_filter=echo
2284 host_ldflags_filter=echo
2285
2286 target_path='$(CURDIR)'
2287
2288 # since the object filename is not given with the -MM flag, the compiler
2289 # is only able to print the basename, and we must add the path ourselves
2290 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2291 DEPFLAGS='-MM'
2292
2293 # find source path
2294 if test -f configure; then
2295     source_path=.
2296 else
2297     source_path=$(cd $(dirname "$0"); pwd)
2298     echo "$source_path" | grep -q '[[:blank:]]' &&
2299         die "Out of tree builds are impossible with whitespace in source path."
2300     test -e "$source_path/config.h" &&
2301         die "Out of tree builds are impossible with config.h in source dir."
2302 fi
2303
2304 for v in "$@"; do
2305     r=${v#*=}
2306     l=${v%"$r"}
2307     r=$(sh_quote "$r")
2308     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2309 done
2310
2311 find_things(){
2312     thing=$1
2313     pattern=$2
2314     file=$source_path/$3
2315     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2316 }
2317
2318 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2319 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2320 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2321 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2322 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2323 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2324 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2325 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2326 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2327 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2328 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2329
2330 ALL_COMPONENTS="
2331     $BSF_LIST
2332     $DECODER_LIST
2333     $DEMUXER_LIST
2334     $ENCODER_LIST
2335     $FILTER_LIST
2336     $HWACCEL_LIST
2337     $INDEV_LIST
2338     $MUXER_LIST
2339     $OUTDEV_LIST
2340     $PARSER_LIST
2341     $PROTOCOL_LIST
2342 "
2343
2344 for n in $COMPONENT_LIST; do
2345     v=$(toupper ${n%s})_LIST
2346     eval enable \$$v
2347     eval ${n}_if_any="\$$v"
2348 done
2349
2350 enable $ARCH_EXT_LIST
2351
2352 die_unknown(){
2353     echo "Unknown option \"$1\"."
2354     echo "See $0 --help for available options."
2355     exit 1
2356 }
2357
2358 print_3_columns() {
2359     cat | tr ' ' '\n' | sort | pr -r -3 -t
2360 }
2361
2362 show_list() {
2363     suffix=_$1
2364     shift
2365     echo $* | sed s/$suffix//g | print_3_columns
2366     exit 0
2367 }
2368
2369 rand_list(){
2370     IFS=', '
2371     set -- $*
2372     unset IFS
2373     for thing; do
2374         comp=${thing%:*}
2375         prob=${thing#$comp}
2376         prob=${prob#:}
2377         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2378         echo "prob ${prob:-0.5}"
2379         printf '%s\n' $comp
2380     done
2381 }
2382
2383 do_random(){
2384     action=$1
2385     shift
2386     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2387     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2388 }
2389
2390 for opt do
2391     optval="${opt#*=}"
2392     case "$opt" in
2393         --extra-ldflags=*)
2394             add_ldflags $optval
2395         ;;
2396         --extra-libs=*)
2397             add_extralibs $optval
2398         ;;
2399         --disable-devices)
2400             disable $INDEV_LIST $OUTDEV_LIST
2401         ;;
2402         --enable-debug=*)
2403             debuglevel="$optval"
2404         ;;
2405         --disable-programs)
2406             disable $PROGRAM_LIST
2407         ;;
2408         --disable-everything)
2409             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2410         ;;
2411         --disable-all)
2412             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2413             disable $LIBRARY_LIST $PROGRAM_LIST doc
2414         ;;
2415         --enable-random|--disable-random)
2416             action=${opt%%-random}
2417             do_random ${action#--} $COMPONENT_LIST
2418         ;;
2419         --enable-random=*|--disable-random=*)
2420             action=${opt%%-random=*}
2421             do_random ${action#--} $optval
2422         ;;
2423         --enable-*=*|--disable-*=*)
2424             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2425             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2426             eval list=\$$(toupper $thing)_LIST
2427             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2428             list=$(filter "$name" $list)
2429             [ "$list" = "" ] && warn "Option $opt did not match anything"
2430             $action $list
2431         ;;
2432         --enable-?*|--disable-?*)
2433             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2434             if is_in $option $COMPONENT_LIST; then
2435                 test $action = disable && action=unset
2436                 eval $action \$$(toupper ${option%s})_LIST
2437             elif is_in $option $CMDLINE_SELECT; then
2438                 $action $option
2439             else
2440                 die_unknown $opt
2441             fi
2442         ;;
2443         --list-*)
2444             NAME="${opt#--list-}"
2445             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2446             NAME=${NAME%s}
2447             eval show_list $NAME \$$(toupper $NAME)_LIST
2448         ;;
2449         --help|-h) show_help
2450         ;;
2451         --fatal-warnings) enable fatal_warnings
2452         ;;
2453         *)
2454             optname="${opt%%=*}"
2455             optname="${optname#--}"
2456             optname=$(echo "$optname" | sed 's/-/_/g')
2457             if is_in $optname $CMDLINE_SET; then
2458                 eval $optname='$optval'
2459             elif is_in $optname $CMDLINE_APPEND; then
2460                 append $optname "$optval"
2461             else
2462                 die_unknown $opt
2463             fi
2464         ;;
2465     esac
2466 done
2467
2468 disabled logging && logfile=/dev/null
2469
2470 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2471 set >> $logfile
2472
2473 test -n "$cross_prefix" && enable cross_compile
2474
2475 if enabled cross_compile; then
2476     test -n "$arch" && test -n "$target_os" ||
2477         die "Must specify target arch and OS when cross-compiling"
2478 fi
2479
2480 ar_default="${cross_prefix}${ar_default}"
2481 cc_default="${cross_prefix}${cc_default}"
2482 cxx_default="${cross_prefix}${cxx_default}"
2483 nm_default="${cross_prefix}${nm_default}"
2484 pkg_config_default="${cross_prefix}${pkg_config_default}"
2485 ranlib="${cross_prefix}${ranlib}"
2486 strip_default="${cross_prefix}${strip_default}"
2487
2488 sysinclude_default="${sysroot}/usr/include"
2489
2490 case "$toolchain" in
2491     clang-asan)
2492         cc_default="clang"
2493         add_cflags  -fsanitize=address
2494         add_ldflags -fsanitize=address
2495     ;;
2496     clang-tsan)
2497         cc_default="clang"
2498         add_cflags  -fsanitize=thread -pie
2499         add_ldflags -fsanitize=thread -pie
2500     ;;
2501     msvc)
2502         cc_default="c99wrap cl"
2503         ld_default="c99wrap link"
2504         nm_default="dumpbin -symbols"
2505         ar_default="lib"
2506         target_os_default="win32"
2507     ;;
2508     gcov)
2509         add_cflags  -fprofile-arcs -ftest-coverage
2510         add_ldflags -fprofile-arcs -ftest-coverage
2511     ;;
2512     ?*)
2513         die "Unknown toolchain $toolchain"
2514     ;;
2515 esac
2516
2517 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2518 enabled cross_compile || host_cc_default=$cc
2519 set_default host_cc
2520
2521 if ! $pkg_config --version >/dev/null 2>&1; then
2522     warn "$pkg_config not found, library detection may fail."
2523     pkg_config=false
2524 fi
2525
2526 exesuf() {
2527     case $1 in
2528         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2529     esac
2530 }
2531
2532 EXESUF=$(exesuf $target_os)
2533 HOSTEXESUF=$(exesuf $host_os)
2534
2535 # set temporary file name
2536 : ${TMPDIR:=$TEMPDIR}
2537 : ${TMPDIR:=$TMP}
2538 : ${TMPDIR:=/tmp}
2539
2540 if ! check_cmd mktemp -u XXXXXX; then
2541     # simple replacement for missing mktemp
2542     # NOT SAFE FOR GENERAL USE
2543     mktemp(){
2544         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2545     }
2546 fi
2547
2548 tmpfile(){
2549     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2550         (set -C; exec > $tmp) 2>/dev/null ||
2551         die "Unable to create temporary file in $TMPDIR."
2552     append TMPFILES $tmp
2553     eval $1=$tmp
2554 }
2555
2556 trap 'rm -f -- $TMPFILES' EXIT
2557
2558 tmpfile TMPASM .asm
2559 tmpfile TMPC   .c
2560 tmpfile TMPCPP .cpp
2561 tmpfile TMPE   $EXESUF
2562 tmpfile TMPH   .h
2563 tmpfile TMPO   .o
2564 tmpfile TMPS   .S
2565 tmpfile TMPSH  .sh
2566 tmpfile TMPV   .ver
2567
2568 unset -f mktemp
2569
2570 chmod +x $TMPE
2571
2572 # make sure we can execute files in $TMPDIR
2573 cat > $TMPSH 2>> $logfile <<EOF
2574 #! /bin/sh
2575 EOF
2576 chmod +x $TMPSH >> $logfile 2>&1
2577 if ! $TMPSH >> $logfile 2>&1; then
2578     cat <<EOF
2579 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2580 variable to another directory and make sure that it is not mounted noexec.
2581 EOF
2582     die "Sanity test failed."
2583 fi
2584
2585 ccc_flags(){
2586     for flag; do
2587         case $flag in
2588             -std=c99)           echo -c99                       ;;
2589             -mcpu=*)            echo -arch ${flag#*=}           ;;
2590             -mieee)             echo -ieee                      ;;
2591             -O*|-fast)          echo $flag                      ;;
2592             -fno-math-errno)    echo -assume nomath_errno       ;;
2593             -g)                 echo -g3                        ;;
2594             -Wall)              echo -msg_enable level2         ;;
2595             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2596             -Wl,*)              echo $flag                      ;;
2597             -f*|-W*)                                            ;;
2598             *)                  echo $flag                      ;;
2599         esac
2600    done
2601 }
2602
2603 msvc_flags(){
2604     for flag; do
2605         case $flag in
2606             -fomit-frame-pointer) echo -Oy ;;
2607             -g)                   echo -Z7 ;;
2608             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2609                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2610                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2611                                        -wd4554 \
2612                                        -wd4996 -wd4273 ;;
2613             -std=c99)             ;;
2614             -fno-math-errno)      ;;
2615             -fno-common)          ;;
2616             -fno-signed-zeros)    ;;
2617             -fPIC)                ;;
2618             -lz)                  echo zlib.lib ;;
2619             -lavifil32)           echo vfw32.lib ;;
2620             -lavicap32)           echo vfw32.lib user32.lib ;;
2621             -l*)                  echo ${flag#-l}.lib ;;
2622             *)                    echo $flag ;;
2623         esac
2624     done
2625 }
2626
2627 pgi_flags(){
2628     for flag; do
2629         case $flag in
2630             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2631             -fomit-frame-pointer) echo -Mnoframe ;;
2632             -g)                   echo -gopt ;;
2633             *)                    echo $flag ;;
2634         esac
2635     done
2636 }
2637
2638 suncc_flags(){
2639     for flag; do
2640         case $flag in
2641             -march=*|-mcpu=*)
2642                 case "${flag#*=}" in
2643                     native)                   echo -xtarget=native       ;;
2644                     v9|niagara)               echo -xarch=sparc          ;;
2645                     ultrasparc)               echo -xarch=sparcvis       ;;
2646                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2647                     i586|pentium)             echo -xchip=pentium        ;;
2648                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2649                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2650                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2651                     pentium4*)          echo -xtarget=pentium4           ;;
2652                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2653                     *-sse3)             echo -xarch=sse3                 ;;
2654                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2655                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2656                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2657                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2658                     bdver*)                   echo -xarch=avx            ;;
2659                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2660                     k8|opteron|athlon64|athlon-fx)
2661                                               echo -xarch=sse2a          ;;
2662                     athlon*)                  echo -xarch=pentium_proa   ;;
2663                 esac
2664                 ;;
2665             -std=c99)             echo -xc99              ;;
2666             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2667             -fPIC)                echo -KPIC -xcode=pic32 ;;
2668             -W*,*)                echo $flag              ;;
2669             -f*-*|-W*|-mimpure-text)                      ;;
2670             -shared)              echo -G                 ;;
2671             *)                    echo $flag              ;;
2672         esac
2673     done
2674 }
2675
2676 tms470_flags(){
2677     for flag; do
2678         case $flag in
2679             -march=*|-mcpu=*)
2680                 case "${flag#*=}" in
2681                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2682                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2683                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2684                     armv6*|arm11*)          echo -mv=6   ;;
2685                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2686                                             echo -mv=5e  ;;
2687                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2688                 esac
2689                 ;;
2690             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2691             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2692             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2693             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2694             -msoft-float)   echo --float_support=vfplib       ;;
2695             -O[0-3]|-mf=*)  echo $flag                        ;;
2696             -g)             echo -g -mn                       ;;
2697             -pds=*)         echo $flag                        ;;
2698             -D*|-I*)        echo $flag                        ;;
2699             --gcc|--abi=*)  echo $flag                        ;;
2700             -me)            echo $flag                        ;;
2701         esac
2702     done
2703 }
2704
2705 probe_cc(){
2706     pfx=$1
2707     _cc=$2
2708
2709     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2710     unset _ld_o _ldflags _ld_lib _ld_path
2711     unset _depflags _DEPCMD _DEPFLAGS
2712     _flags_filter=echo
2713
2714     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2715         _type=llvm_gcc
2716         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2717         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2718         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2719         _cflags_speed='-O3'
2720         _cflags_size='-Os'
2721     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2722         _type=gcc
2723         gcc_version=$($_cc --version | head -n1)
2724         gcc_basever=$($_cc -dumpversion)
2725         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2726         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2727         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2728         if ! $_cc -dumpversion | grep -q '^2\.'; then
2729             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2730         fi
2731         _cflags_speed='-O3'
2732         _cflags_size='-Os'
2733     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2734         _type=icc
2735         _ident=$($_cc --version | head -n1)
2736         _depflags='-MMD'
2737         _cflags_speed='-O3'
2738         _cflags_size='-Os'
2739         _cflags_noopt='-O1'
2740     elif $_cc -v 2>&1 | grep -q xlc; then
2741         _type=xlc
2742         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2743         _cflags_speed='-O5'
2744         _cflags_size='-O5 -qcompact'
2745     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2746         _type=ccc
2747         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2748         _DEPFLAGS='-M'
2749         _cflags_speed='-fast'
2750         _cflags_size='-O1'
2751         _flags_filter=ccc_flags
2752     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2753         test -d "$sysroot" || die "No valid sysroot specified."
2754         _type=armcc
2755         _ident=$($_cc --vsn | head -n1)
2756         armcc_conf="$PWD/armcc.conf"
2757         $_cc --arm_linux_configure                 \
2758              --arm_linux_config_file="$armcc_conf" \
2759              --configure_sysroot="$sysroot"        \
2760              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2761              die "Error creating armcc configuration file."
2762         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2763         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2764         as_default="${cross_prefix}gcc"
2765         _depflags='-MMD'
2766         _cflags_speed='-O3'
2767         _cflags_size='-Os'
2768     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2769         _type=tms470
2770         _ident=$($_cc -version | head -n1 | tr -s ' ')
2771         _flags='--gcc --abi=eabi -me'
2772         _cc_e='-ppl -fe=$@'
2773         _cc_o='-fe=$@'
2774         _depflags='-ppa -ppd=$(@:.o=.d)'
2775         _cflags_speed='-O3 -mf=5'
2776         _cflags_size='-O3 -mf=2'
2777         _flags_filter=tms470_flags
2778     elif $_cc -v 2>&1 | grep -q clang; then
2779         _type=clang
2780         _ident=$($_cc --version | head -n1)
2781         _depflags='-MMD'
2782         _cflags_speed='-O3'
2783         _cflags_size='-Os'
2784     elif $_cc -V 2>&1 | grep -q Sun; then
2785         _type=suncc
2786         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2787         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2788         _DEPFLAGS='-xM1 -xc99'
2789         _ldflags='-std=c99'
2790         _cflags_speed='-O5'
2791         _cflags_size='-O5 -xspace'
2792         _flags_filter=suncc_flags
2793     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2794         _type=pathscale
2795         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2796         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2797         _cflags_speed='-O2'
2798         _cflags_size='-Os'
2799         _flags_filter='filter_out -Wdisabled-optimization'
2800     elif $_cc -v 2>&1 | grep -q Open64; then
2801         _type=open64
2802         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2803         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2804         _cflags_speed='-O2'
2805         _cflags_size='-Os'
2806         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2807     elif $_cc -V 2>&1 | grep -q Portland; then
2808         _type=pgi
2809         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2810         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2811         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2812         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2813         _cflags_noopt="-O"
2814         _flags_filter=pgi_flags
2815     elif $_cc 2>&1 | grep -q Microsoft; then
2816         _type=msvc
2817         _ident=$($cc 2>&1 | head -n1)
2818         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2819         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2820         _cflags_speed="-O2"
2821         _cflags_size="-O1"
2822         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2823         if $_cc 2>&1 | grep -q Linker; then
2824             _ld_o='-out $@'
2825         else
2826             _ld_o='-Fe$@'
2827         fi
2828         _cc_o='-Fo $@'
2829         _cc_e='-P -Fi $@'
2830         _flags_filter=msvc_flags
2831         _ld_lib='lib%.a'
2832         _ld_path='-libpath:'
2833         _flags='-nologo'
2834         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2835         if [ $pfx = hostcc ]; then
2836             append _cflags -Dsnprintf=_snprintf
2837         fi
2838         disable stripping
2839     fi
2840
2841     eval ${pfx}_type=\$_type
2842     eval ${pfx}_ident=\$_ident
2843 }
2844
2845 set_ccvars(){
2846     eval ${1}_C=\${_cc_c-\${${1}_C}}
2847     eval ${1}_E=\${_cc_e-\${${1}_E}}
2848     eval ${1}_O=\${_cc_o-\${${1}_O}}
2849
2850     if [ -n "$_depflags" ]; then
2851         eval ${1}_DEPFLAGS=\$_depflags
2852     else
2853         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2854         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2855         eval DEP${1}FLAGS=\$_flags
2856     fi
2857 }
2858
2859 probe_cc cc "$cc"
2860 cflags_filter=$_flags_filter
2861 cflags_speed=$_cflags_speed
2862 cflags_size=$_cflags_size
2863 cflags_noopt=$_cflags_noopt
2864 add_cflags $_flags $_cflags
2865 cc_ldflags=$_ldflags
2866 set_ccvars CC
2867
2868 probe_cc hostcc "$host_cc"
2869 host_cflags_filter=$_flags_filter
2870 add_host_cflags  $_flags $_cflags
2871 set_ccvars HOSTCC
2872
2873 test -n "$cc_type" && enable $cc_type ||
2874     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2875
2876 : ${as_default:=$cc}
2877 : ${dep_cc_default:=$cc}
2878 : ${ld_default:=$cc}
2879 : ${host_ld_default:=$host_cc}
2880 set_default ar as dep_cc ld host_ld
2881
2882 probe_cc as "$as"
2883 asflags_filter=$_flags_filter
2884 add_asflags $_flags $_cflags
2885 set_ccvars AS
2886
2887 probe_cc ld "$ld"
2888 ldflags_filter=$_flags_filter
2889 add_ldflags $_flags $_ldflags
2890 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2891 LD_O=${_ld_o-$LD_O}
2892 LD_LIB=${_ld_lib-$LD_LIB}
2893 LD_PATH=${_ld_path-$LD_PATH}
2894
2895 probe_cc hostld "$host_ld"
2896 host_ldflags_filter=$_flags_filter
2897 add_host_ldflags $_flags $_ldflags
2898 HOSTLD_O=${_ld_o-$HOSTLD_O}
2899
2900 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2901     probe_cc depcc "$dep_cc"
2902     CCDEP=${_DEPCMD:-$DEPCMD}
2903     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2904     DEPCCFLAGS=$_flags
2905 fi
2906
2907 if $ar 2>&1 | grep -q Microsoft; then
2908     arflags="-nologo"
2909     ar_o='-out:$@'
2910 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2911     arflags="rq"
2912     ar_o='$@'
2913 else
2914     arflags="rc"
2915     ar_o='$@'
2916 fi
2917
2918 add_cflags $extra_cflags
2919 add_cxxflags $extra_cxxflags
2920 add_asflags $extra_cflags
2921
2922 if test -n "$sysroot"; then
2923     case "$cc_type" in
2924         gcc|llvm_gcc|clang)
2925             add_cppflags --sysroot="$sysroot"
2926             add_ldflags --sysroot="$sysroot"
2927         ;;
2928         tms470)
2929             add_cppflags -I"$sysinclude"
2930             add_ldflags  --sysroot="$sysroot"
2931         ;;
2932     esac
2933 fi
2934
2935 if test "$cpu" = host; then
2936     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2937
2938     case "$cc_type" in
2939         gcc|llvm_gcc)
2940             check_native(){
2941                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2942                 sed -n "/cc1.*$1=/{
2943                             s/.*$1=\\([^ ]*\\).*/\\1/
2944                             p
2945                             q
2946                         }" $TMPE
2947             }
2948             cpu=$(check_native -march || check_native -mcpu)
2949         ;;
2950     esac
2951
2952     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2953 fi
2954
2955 # Deal with common $arch aliases
2956 case "$arch" in
2957     aarch64|arm64)
2958         arch="aarch64"
2959     ;;
2960     arm*|iPad*)
2961         arch="arm"
2962     ;;
2963     mips*|IP*)
2964         arch="mips"
2965     ;;
2966     parisc*|hppa*)
2967         arch="parisc"
2968     ;;
2969     "Power Macintosh"|ppc*|powerpc*)
2970         arch="ppc"
2971     ;;
2972     s390|s390x)
2973         arch="s390"
2974     ;;
2975     sh4|sh)
2976         arch="sh4"
2977     ;;
2978     sun4u|sparc*)
2979         arch="sparc"
2980     ;;
2981     tilegx|tile-gx)
2982         arch="tilegx"
2983     ;;
2984     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2985         arch="x86"
2986     ;;
2987 esac
2988
2989 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2990 enable $arch
2991
2992 # Add processor-specific flags
2993 if enabled aarch64; then
2994
2995     case $cpu in
2996         armv*)
2997             cpuflags="-march=$cpu"
2998         ;;
2999         *)
3000             cpuflags="-mcpu=$cpu"
3001         ;;
3002     esac
3003
3004 elif enabled alpha; then
3005
3006     cpuflags="-mcpu=$cpu"
3007
3008 elif enabled arm; then
3009
3010     check_arm_arch() {
3011         check_cpp_condition stddef.h \
3012             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3013             $cpuflags
3014     }
3015
3016     probe_arm_arch() {
3017         if   check_arm_arch 4;        then echo armv4;
3018         elif check_arm_arch 4T;       then echo armv4t;
3019         elif check_arm_arch 5;        then echo armv5;
3020         elif check_arm_arch 5E;       then echo armv5e;
3021         elif check_arm_arch 5T;       then echo armv5t;
3022         elif check_arm_arch 5TE;      then echo armv5te;
3023         elif check_arm_arch 5TEJ;     then echo armv5te;
3024         elif check_arm_arch 6;        then echo armv6;
3025         elif check_arm_arch 6J;       then echo armv6j;
3026         elif check_arm_arch 6K;       then echo armv6k;
3027         elif check_arm_arch 6Z;       then echo armv6z;
3028         elif check_arm_arch 6ZK;      then echo armv6zk;
3029         elif check_arm_arch 6T2;      then echo armv6t2;
3030         elif check_arm_arch 7;        then echo armv7;
3031         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3032         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3033         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3034         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3035         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3036         fi
3037     }
3038
3039     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3040
3041     case $cpu in
3042         armv*)
3043             cpuflags="-march=$cpu"
3044             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3045         ;;
3046         *)
3047             cpuflags="-mcpu=$cpu"
3048             case $cpu in
3049                 cortex-a*)                               subarch=armv7a  ;;
3050                 cortex-r*)                               subarch=armv7r  ;;
3051                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3052                 arm11*)                                  subarch=armv6   ;;
3053                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3054                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3055                 *)                             subarch=$(probe_arm_arch) ;;
3056             esac
3057         ;;
3058     esac
3059
3060     case "$subarch" in
3061         armv5t*)    enable fast_clz                ;;
3062         armv[6-8]*) enable fast_clz fast_unaligned ;;
3063     esac
3064
3065 elif enabled avr32; then
3066
3067     case $cpu in
3068         ap7[02]0[0-2])
3069             subarch="avr32_ap"
3070             cpuflags="-mpart=$cpu"
3071         ;;
3072         ap)
3073             subarch="avr32_ap"
3074             cpuflags="-march=$cpu"
3075         ;;
3076         uc3[ab]*)
3077             subarch="avr32_uc"
3078             cpuflags="-mcpu=$cpu"
3079         ;;
3080         uc)
3081             subarch="avr32_uc"
3082             cpuflags="-march=$cpu"
3083         ;;
3084     esac
3085
3086 elif enabled bfin; then
3087
3088     cpuflags="-mcpu=$cpu"
3089
3090 elif enabled mips; then
3091
3092     cpuflags="-march=$cpu"
3093
3094     case $cpu in
3095         24kc)
3096             disable mipsfpu
3097             disable mipsdspr1
3098             disable mipsdspr2
3099         ;;
3100         24kf*)
3101             disable mipsdspr1
3102             disable mipsdspr2
3103         ;;
3104         24kec|34kc|1004kc)
3105             disable mipsfpu
3106             disable mipsdspr2
3107         ;;
3108         24kef*|34kf*|1004kf*)
3109             disable mipsdspr2
3110         ;;
3111         74kc)
3112             disable mipsfpu
3113         ;;
3114     esac
3115
3116 elif enabled ppc; then
3117
3118     case $(tolower $cpu) in
3119         601|ppc601|powerpc601)
3120             cpuflags="-mcpu=601"
3121             disable altivec
3122         ;;
3123         603*|ppc603*|powerpc603*)
3124             cpuflags="-mcpu=603"
3125             disable altivec
3126         ;;
3127         604*|ppc604*|powerpc604*)
3128             cpuflags="-mcpu=604"
3129             disable altivec
3130         ;;
3131         g3|75*|ppc75*|powerpc75*)
3132             cpuflags="-mcpu=750"
3133             disable altivec
3134         ;;
3135         g4|745*|ppc745*|powerpc745*)
3136             cpuflags="-mcpu=7450"
3137         ;;
3138         74*|ppc74*|powerpc74*)
3139             cpuflags="-mcpu=7400"
3140         ;;
3141         g5|970|ppc970|powerpc970)
3142             cpuflags="-mcpu=970"
3143         ;;
3144         power[3-7]*)
3145             cpuflags="-mcpu=$cpu"
3146         ;;
3147         cell)
3148             cpuflags="-mcpu=cell"
3149             enable ldbrx
3150         ;;
3151         e500mc)
3152             cpuflags="-mcpu=e500mc"
3153             disable altivec
3154         ;;
3155         e500v2)
3156             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3157             disable altivec
3158         ;;
3159         e500)
3160             cpuflags="-mcpu=8540 -mhard-float"
3161             disable altivec
3162         ;;
3163     esac
3164
3165 elif enabled sparc; then
3166
3167     case $cpu in
3168         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3169             cpuflags="-mcpu=$cpu"
3170             disable vis
3171         ;;
3172         ultrasparc*|niagara[234])
3173             cpuflags="-mcpu=$cpu"
3174         ;;
3175     esac
3176
3177 elif enabled x86; then
3178
3179     case $cpu in
3180         i[345]86|pentium)
3181             cpuflags="-march=$cpu"
3182             disable mmx
3183         ;;
3184         # targets that do NOT support conditional mov (cmov)
3185         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3186             cpuflags="-march=$cpu"
3187             disable cmov
3188         ;;
3189         # targets that do support conditional mov (cmov)
3190         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3191             cpuflags="-march=$cpu"
3192             enable cmov
3193             enable fast_cmov
3194         ;;
3195         # targets that do support conditional mov but on which it's slow
3196         pentium4|pentium4m|prescott|nocona)
3197             cpuflags="-march=$cpu"
3198             enable cmov
3199             disable fast_cmov
3200         ;;
3201     esac
3202
3203 fi
3204
3205 if [ "$cpu" != generic ]; then
3206     add_cflags  $cpuflags
3207     add_asflags $cpuflags
3208 fi
3209
3210 # compiler sanity check
3211 check_exec <<EOF
3212 int main(void){ return 0; }
3213 EOF
3214 if test "$?" != 0; then
3215     echo "$cc is unable to create an executable file."
3216     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3217         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3218         echo "Only do this if you know what cross compiling means."
3219     fi
3220     die "C compiler test failed."
3221 fi
3222
3223 add_cppflags -D_ISOC99_SOURCE
3224 add_cxxflags -D__STDC_CONSTANT_MACROS
3225 check_cflags -std=c99
3226 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3227 #include <stdlib.h>
3228 EOF
3229 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3230 #include <stdlib.h>
3231 EOF
3232
3233 check_host_cflags -std=c99
3234 check_host_cflags -Wall
3235
3236 check_64bit(){
3237     arch32=$1
3238     arch64=$2
3239     expr=$3
3240     check_code cc "" "int test[2*($expr) - 1]" &&
3241         subarch=$arch64 || subarch=$arch32
3242 }
3243
3244 case "$arch" in
3245     aarch64|alpha|ia64)
3246         spic=$shared
3247     ;;
3248     mips)
3249         check_64bit mips mips64 '_MIPS_SIM > 1'
3250         spic=$shared
3251     ;;
3252     parisc)
3253         check_64bit parisc parisc64 'sizeof(void *) > 4'
3254         spic=$shared
3255     ;;
3256     ppc)
3257         check_64bit ppc ppc64 'sizeof(void *) > 4'
3258         spic=$shared
3259     ;;
3260     sparc)
3261         check_64bit sparc sparc64 'sizeof(void *) > 4'
3262         spic=$shared
3263     ;;
3264     x86)
3265         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3266         if test "$subarch" = "x86_64"; then
3267             spic=$shared
3268         fi
3269     ;;
3270     ppc)
3271         check_cc <<EOF && subarch="ppc64"
3272         int test[(int)sizeof(char*) - 7];
3273 EOF
3274     ;;
3275 esac
3276
3277 enable $subarch
3278 enabled spic && enable pic
3279
3280 # OS specific
3281 case $target_os in
3282     haiku)
3283         prefix_default="/boot/common"
3284         network_extralibs="-lnetwork"
3285         host_libs=
3286         ;;
3287     sunos)
3288         FFSERVERLDFLAGS=""
3289         SHFLAGS='-shared -Wl,-h,$$(@F)'
3290         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3291         network_extralibs="-lsocket -lnsl"
3292         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3293         # When using suncc to build, the Solaris linker will mark
3294         # an executable with each instruction set encountered by
3295         # the Solaris assembler.  As our libraries contain their own
3296         # guards for processor-specific code, instead suppress
3297         # generation of the HWCAPS ELF section on Solaris x86 only.
3298         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3299         nm_default='nm -P -g'
3300         ;;
3301     netbsd)
3302         disable symver
3303         oss_indev_extralibs="-lossaudio"
3304         oss_outdev_extralibs="-lossaudio"
3305         enabled gcc || check_ldflags -Wl,-zmuldefs
3306         ;;
3307     openbsd|bitrig)
3308         disable symver
3309         SHFLAGS='-shared'
3310         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3311         SLIB_INSTALL_LINKS=
3312         oss_indev_extralibs="-lossaudio"
3313         oss_outdev_extralibs="-lossaudio"
3314         ;;
3315     dragonfly)
3316         disable symver
3317         ;;
3318     freebsd)
3319         ;;
3320     bsd/os)
3321         add_extralibs -lpoll -lgnugetopt
3322         strip="strip -d"
3323         ;;
3324     darwin)
3325         gas="gas-preprocessor.pl $cc"
3326         enabled ppc && add_asflags -force_cpusubtype_ALL
3327         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3328         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3329         strip="${strip} -x"
3330         add_ldflags -Wl,-dynamic,-search_paths_first
3331         SLIBSUF=".dylib"
3332         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3333         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3334         FFSERVERLDFLAGS=-Wl,-bind_at_load
3335         objformat="macho"
3336         enabled x86_64 && objformat="macho64"
3337         enabled_any pic shared ||
3338             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3339         ;;
3340     mingw32*)
3341         if test $target_os = "mingw32ce"; then
3342             disable network
3343         else
3344             target_os=mingw32
3345         fi
3346         LIBTARGET=i386
3347         if enabled x86_64; then
3348             LIBTARGET="i386:x86-64"
3349         elif enabled arm; then
3350             LIBTARGET=arm-wince
3351         fi
3352         shlibdir_default="$bindir_default"
3353         SLIBPREF=""
3354         SLIBSUF=".dll"
3355         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3356         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3357         dlltool="${cross_prefix}dlltool"
3358         if check_cmd lib.exe -list; then
3359             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3360             if enabled x86_64; then
3361                 LIBTARGET=x64
3362             fi
3363         elif check_cmd $dlltool --version; then
3364             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3365         fi
3366         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3367         SLIB_INSTALL_LINKS=
3368         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3369         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3370         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3371         objformat="win32"
3372         ranlib=:
3373         enable dos_paths
3374         ;;
3375     win32|win64)
3376         if enabled shared; then
3377             # Link to the import library instead of the normal static library
3378             # for shared libs.
3379             LD_LIB='%.lib'
3380             # Cannot build shared and static libraries at the same time with
3381             # MSVC.
3382             disable static
3383         fi
3384         shlibdir_default="$bindir_default"
3385         SLIBPREF=""
3386         SLIBSUF=".dll"
3387         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3388         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3389         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3390         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3391         SLIB_INSTALL_LINKS=
3392         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3393         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3394         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3395         objformat="win32"
3396         ranlib=:
3397         enable dos_paths
3398         ;;
3399     cygwin*)
3400         target_os=cygwin
3401         shlibdir_default="$bindir_default"
3402         SLIBPREF="cyg"
3403         SLIBSUF=".dll"
3404         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3405         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3406         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3407         SLIB_INSTALL_LINKS=
3408         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3409         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3410         objformat="win32"
3411         enable dos_paths
3412         ;;
3413     *-dos|freedos|opendos)
3414         network_extralibs="-lsocket"
3415         objformat="coff"
3416         enable dos_paths
3417         add_cppflags -U__STRICT_ANSI__
3418         ;;
3419     linux)
3420         enable dv1394
3421         ;;
3422     irix*)
3423         target_os=irix
3424         ranlib="echo ignoring ranlib"
3425         ;;
3426     os/2*)
3427         strip="lxlite -CS"
3428         ln_s="cp -f"
3429         objformat="aout"
3430         add_cppflags -D_GNU_SOURCE
3431         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3432         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3433         FFSERVERLDFLAGS=""
3434         LIBSUF="_s.a"
3435         SLIBPREF=""
3436         SLIBSUF=".dll"
3437         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3438         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3439         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3440             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3441             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3442             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3443             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3444             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3445         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3446             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3447         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3448         enable dos_paths
3449         enable_weak os2threads
3450         ;;
3451     gnu/kfreebsd)
3452         add_cppflags -D_BSD_SOURCE
3453         ;;
3454     gnu)
3455         ;;
3456     qnx)
3457         add_cppflags -D_QNX_SOURCE
3458         network_extralibs="-lsocket"
3459         ;;
3460     symbian)
3461         SLIBSUF=".dll"
3462         enable dos_paths
3463         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3464         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3465         add_ldflags -Wl,--target1-abs,--no-undefined \
3466                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3467                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3468         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3469                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3470                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3471         ;;
3472     osf1)
3473         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3474         FFSERVERLDFLAGS=
3475         ;;
3476     minix)
3477         ;;
3478     plan9)
3479         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3480                      -D_REENTRANT_SOURCE        \
3481                      -D_RESEARCH_SOURCE         \
3482                      -DFD_SETSIZE=96            \
3483                      -DHAVE_SOCK_OPTS
3484         add_compat strtod.o strtod=avpriv_strtod
3485         network_extralibs='-lbsd'
3486         exeobjs=compat/plan9/main.o
3487         disable ffserver
3488         cp_f='cp'
3489         ;;
3490     none)
3491         ;;
3492     *)
3493         die "Unknown OS '$target_os'."
3494         ;;
3495 esac
3496
3497 # determine libc flavour
3498
3499 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3500 if check_cpp_condition features.h "defined __UCLIBC__"; then
3501     libc_type=uclibc
3502     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3503 elif check_cpp_condition features.h "defined __GLIBC__"; then
3504     libc_type=glibc
3505     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3506 # MinGW headers can be installed on Cygwin, so check for newlib first.
3507 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3508     libc_type=newlib
3509     add_cppflags -U__STRICT_ANSI__
3510 elif check_header _mingw.h; then
3511     libc_type=mingw
3512     check_cpp_condition _mingw.h \
3513         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3514             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3515         die "ERROR: MinGW runtime version must be >= 3.15."
3516     add_cppflags -U__STRICT_ANSI__
3517     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3518             __MINGW64_VERSION_MAJOR < 3"; then
3519         add_compat msvcrt/snprintf.o
3520         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3521     fi
3522 elif check_func_headers stdlib.h _get_doserrno; then
3523     libc_type=msvcrt
3524     add_compat strtod.o strtod=avpriv_strtod
3525     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3526                                  _snprintf=avpriv_snprintf  \
3527                                  vsnprintf=avpriv_vsnprintf
3528 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3529     libc_type=klibc
3530 fi
3531
3532 test -n "$libc_type" && enable $libc_type
3533
3534 # hacks for compiler/libc/os combinations
3535
3536 if enabled_all tms470 glibc; then
3537     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3538     add_cppflags -D__USER_LABEL_PREFIX__=
3539     add_cppflags -D__builtin_memset=memset
3540     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3541     add_cflags   -pds=48    # incompatible redefinition of macro
3542 fi
3543
3544 if enabled_all ccc glibc; then
3545     add_ldflags -Wl,-z,now  # calls to libots crash without this
3546 fi
3547
3548 esc(){
3549     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3550 }
3551
3552 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3553
3554 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3555
3556 set_default $PATHS_LIST
3557 set_default nm
3558
3559 # we need to build at least one lib type
3560 if ! enabled_any static shared; then
3561     cat <<EOF
3562 At least one library type must be built.
3563 Specify --enable-static to build the static libraries or --enable-shared to
3564 build the shared libraries as well. To only build the shared libraries specify
3565 --disable-static in addition to --enable-shared.
3566 EOF
3567     exit 1;
3568 fi
3569
3570 die_license_disabled() {
3571     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3572 }
3573
3574 die_license_disabled_gpl() {
3575     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3576 }
3577
3578 die_license_disabled gpl libcdio
3579 die_license_disabled gpl libutvideo
3580 die_license_disabled gpl libvidstab
3581 die_license_disabled gpl libx264
3582 die_license_disabled gpl libxavs
3583 die_license_disabled gpl libxvid
3584 die_license_disabled gpl x11grab
3585
3586 die_license_disabled nonfree libaacplus
3587 die_license_disabled nonfree libfaac
3588 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3589 enabled gpl && die_license_disabled_gpl nonfree openssl
3590
3591 die_license_disabled version3 libopencore_amrnb
3592 die_license_disabled version3 libopencore_amrwb
3593 die_license_disabled version3 libvo_aacenc
3594 die_license_disabled version3 libvo_amrwbenc
3595
3596 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3597
3598 disabled optimizations || check_cflags -fomit-frame-pointer
3599
3600 enable_pic() {
3601     enable pic
3602     add_cppflags -DPIC
3603     add_cflags   -fPIC
3604     add_asflags  -fPIC
3605 }
3606
3607 enabled pic && enable_pic
3608
3609 check_cc <<EOF || die "Symbol mangling check failed."
3610 int ff_extern;
3611 EOF
3612 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3613 extern_prefix=${sym%%ff_extern*}
3614
3615 check_cc <<EOF && enable_weak inline_asm
3616 void foo(void) { __asm__ volatile ("" ::); }
3617 EOF
3618
3619 _restrict=
3620 for restrict_keyword in restrict __restrict__ __restrict; do
3621     check_cc <<EOF && _restrict=$restrict_keyword && break
3622 void foo(char * $restrict_keyword p);
3623 EOF
3624 done
3625
3626 check_cc <<EOF && enable attribute_packed
3627 struct { int x; } __attribute__((packed)) x;
3628 EOF
3629
3630 check_cc <<EOF && enable attribute_may_alias
3631 union { int x; } __attribute__((may_alias)) x;
3632 EOF
3633
3634 check_cc <<EOF || die "endian test failed"
3635 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3636 EOF
3637 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3638
3639 if enabled alpha; then
3640
3641     check_cflags -mieee
3642
3643 elif enabled arm; then
3644
3645     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3646 float func(float a, float b){ return a+b; }
3647 EOF
3648
3649     enabled thumb && check_cflags -mthumb || check_cflags -marm
3650     nogas=die
3651
3652     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3653         enable vfp_args
3654     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3655         case "${cross_prefix:-$cc}" in
3656             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3657             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3658 __asm__ (".eabi_attribute 28, 1");
3659 int main(void) { return 0; }
3660 EOF
3661         esac
3662         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3663     fi
3664
3665     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3666     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3667     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3668     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3669     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3670     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3671
3672     [ $target_os = linux ] ||
3673         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3674             $ARCH_EXT_LIST_ARM
3675
3676     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3677     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3678
3679     enabled_all armv6t2 shared !pic && enable_pic
3680
3681 elif enabled mips; then
3682
3683     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3684     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3685      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3686     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3687      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3688     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3689      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3690     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3691      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3692
3693 elif enabled parisc; then
3694
3695     if enabled gcc; then
3696         case $($cc -dumpversion) in
3697             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3698         esac
3699     fi
3700
3701 elif enabled ppc; then
3702
3703     enable local_aligned_8 local_aligned_16
3704
3705     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3706     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3707     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3708     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3709
3710     # AltiVec flags: The FSF version of GCC differs from the Apple version
3711     if enabled altivec; then
3712         nogas=warn
3713         check_cflags -maltivec -mabi=altivec &&
3714         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3715         check_cflags -faltivec
3716
3717         # check if our compiler supports Motorola AltiVec C API
3718         check_cc <<EOF || disable altivec
3719 $inc_altivec_h
3720 int main(void) {
3721     vector signed int v1 = (vector signed int) { 0 };
3722     vector signed int v2 = (vector signed int) { 1 };
3723     v1 = vec_add(v1, v2);
3724     return 0;
3725 }
3726 EOF
3727
3728         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3729     fi
3730
3731 elif enabled sparc; then
3732
3733     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3734
3735 elif enabled x86; then
3736
3737     check_builtin rdtsc    intrin.h   "__rdtsc()"
3738     check_builtin mm_empty mmintrin.h "_mm_empty()"
3739
3740     enable local_aligned_8 local_aligned_16
3741
3742     # check whether EBP is available on x86
3743     # As 'i' is stored on the stack, this program will crash
3744     # if the base pointer is used to access it because the
3745     # base pointer is cleared in the inline assembly code.
3746     check_exec_crash <<EOF && enable ebp_available
3747 volatile int i=0;
3748 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3749 return i;
3750 EOF
3751
3752     # check whether EBX is available on x86
3753     check_inline_asm ebx_available '""::"b"(0)' &&
3754         check_inline_asm ebx_available '"":::"%ebx"'
3755
3756     # check whether xmm clobbers are supported
3757     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3758
3759     # check whether binutils is new enough to compile SSSE3/MMXEXT
3760     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3761     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3762
3763     if ! disabled_any asm mmx yasm; then
3764         if check_cmd $yasmexe --version; then
3765             enabled x86_64 && yasm_extra="-m amd64"
3766             yasm_debug="-g dwarf2"
3767         elif check_cmd nasm -v; then
3768             yasmexe=nasm
3769             yasm_debug="-g -F dwarf"
3770             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3771         fi
3772
3773         YASMFLAGS="-f $objformat $yasm_extra"
3774         enabled pic               && append YASMFLAGS "-DPIC"
3775         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3776         case "$objformat" in
3777             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3778         esac
3779
3780         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3781             die "yasm not found, use --disable-yasm for a crippled build"
3782         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3783         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3784         check_yasm "CPU amdnop" && enable cpunop
3785     fi
3786
3787     case "$cpu" in
3788         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3789             disable fast_clz
3790         ;;
3791     esac
3792
3793 fi
3794
3795 if enabled asm; then
3796     as=${gas:=$as}
3797     check_as <<EOF && enable gnu_as || \
3798         $nogas "GNU assembler not found, install gas-preprocessor"
3799 .macro m n
3800 \n: .int 0
3801 .endm
3802 m x
3803 EOF
3804 fi
3805
3806 check_ldflags -Wl,--as-needed
3807
3808 if check_func dlopen; then
3809     ldl=
3810 elif check_func dlopen -ldl; then
3811     ldl=-ldl
3812 fi
3813
3814 if ! disabled network; then
3815     check_type "sys/types.h sys/socket.h" socklen_t
3816     check_type netdb.h "struct addrinfo"
3817     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3818     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3819     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3820     check_type netinet/in.h "struct sockaddr_in6"
3821     check_type poll.h "struct pollfd"
3822     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3823     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3824     check_type netinet/sctp.h "struct sctp_event_subscribe"
3825     check_func getaddrinfo $network_extralibs
3826     check_func getservbyport $network_extralibs
3827     # Prefer arpa/inet.h over winsock2
3828     if check_header arpa/inet.h ; then
3829         check_func closesocket
3830     elif check_header winsock2.h ; then
3831         check_func_headers winsock2.h closesocket -lws2 &&
3832             network_extralibs="-lws2" ||
3833         { check_func_headers winsock2.h closesocket -lws2_32 &&
3834             network_extralibs="-lws2_32"; }
3835         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3836         check_type ws2tcpip.h socklen_t
3837         check_type ws2tcpip.h "struct addrinfo"
3838         check_type ws2tcpip.h "struct group_source_req"
3839         check_type ws2tcpip.h "struct ip_mreq_source"
3840         check_type ws2tcpip.h "struct ipv6_mreq"
3841         check_type winsock2.h "struct pollfd"
3842         check_type ws2tcpip.h "struct sockaddr_in6"
3843         check_type ws2tcpip.h "struct sockaddr_storage"
3844         check_struct winsock2.h "struct sockaddr" sa_len
3845     else
3846         disable network
3847     fi
3848 fi
3849
3850 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3851 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3852
3853 check_func  access
3854 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3855 check_func  fcntl
3856 check_func  fork
3857 check_func  gethrtime
3858 check_func  getopt
3859 check_func  getrusage
3860 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3861 check_func  gettimeofday
3862 check_func  inet_aton $network_extralibs
3863 check_func  isatty
3864 check_func  localtime_r
3865 check_func  ${malloc_prefix}memalign            && enable memalign
3866 check_func  mkstemp
3867 check_func  mmap
3868 check_func  mprotect
3869 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3870 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3871 check_func  setrlimit
3872 check_func  strerror_r
3873 check_func  sched_getaffinity
3874 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3875 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3876 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3877 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3878 check_func  sysconf
3879 check_func  sysctl
3880 check_func  usleep
3881 check_func_headers conio.h kbhit
3882 check_func_headers windows.h PeekNamedPipe
3883 check_func_headers io.h setmode
3884 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3885 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3886 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3887 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3888 check_func_headers windows.h GetProcessAffinityMask
3889 check_func_headers windows.h GetProcessTimes
3890 check_func_headers windows.h GetSystemTimeAsFileTime
3891 check_func_headers windows.h MapViewOfFile
3892 check_func_headers windows.h SetConsoleTextAttribute
3893 check_func_headers windows.h Sleep
3894 check_func_headers windows.h VirtualAlloc
3895 check_func_headers glob.h glob
3896
3897 check_header direct.h
3898 check_header dlfcn.h
3899 check_header dxva.h
3900 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3901 check_header io.h
3902 check_header libcrystalhd/libcrystalhd_if.h
3903 check_header malloc.h
3904 check_header poll.h
3905 check_header sys/mman.h
3906 check_header sys/param.h
3907 check_header sys/resource.h
3908 check_header sys/select.h
3909 check_header sys/time.h
3910 check_header termios.h
3911 check_header unistd.h
3912 check_header vdpau/vdpau.h
3913 check_header vdpau/vdpau_x11.h
3914 check_header VideoDecodeAcceleration/VDADecoder.h
3915 check_header windows.h
3916 check_header X11/extensions/XvMClib.h
3917 check_header asm/types.h
3918
3919 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3920 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3921
3922 if ! disabled w32threads && ! enabled pthreads; then
3923     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3924 fi
3925
3926 # check for some common methods of building with pthread support
3927 # do this before the optional library checks as some of them require pthreads
3928 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3929     enable pthreads
3930     if check_func pthread_create; then
3931         :
3932     elif check_func pthread_create -pthread; then
3933         add_cflags -pthread
3934         add_extralibs -pthread
3935     elif check_func pthread_create -pthreads; then
3936         add_cflags -pthreads
3937         add_extralibs -pthreads
3938     elif check_func pthread_create -lpthreadGC2; then
3939         add_extralibs -lpthreadGC2
3940     elif ! check_lib pthread.h pthread_create -lpthread; then
3941         disable pthreads
3942     fi
3943 fi
3944
3945 for thread in $THREADS_LIST; do
3946     if enabled $thread; then
3947         test -n "$thread_type" &&
3948             die "ERROR: Only one thread type must be selected." ||
3949             thread_type="$thread"
3950     fi
3951 done
3952
3953 if enabled pthreads; then
3954   check_func pthread_cancel
3955 fi
3956
3957 enabled sync_val_compare_and_swap && enable atomics_gcc
3958 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
3959 enabled MemoryBarrier && enable atomics_win32
3960
3961 check_lib math.h sin -lm && LIBM="-lm"
3962 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3963 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3964
3965 atan2f_args=2
3966 ldexpf_args=2
3967 powf_args=2
3968
3969 for func in $MATH_FUNCS; do
3970     eval check_mathfunc $func \${${func}_args:-1}
3971 done
3972
3973 # these are off by default, so fail if requested and not available
3974 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
3975                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
3976                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
3977 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3978 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3979 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3980 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3981 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3982 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3983 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3984 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3985                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3986                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3987 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3988 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3989 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3990 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"
3991 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3992 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3993 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3994                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3995                         done || die "ERROR: libgsm not found"; }
3996 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3997 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3998 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3999 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4000 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4001 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4002 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4003 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4004                          check_lib openjpeg.h opj_version -lopenjpeg ||
4005                          die "ERROR: libopenjpeg not found"; }
4006 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4007 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4008 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4009 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4010 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4011 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4012 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4013 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4014 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4015     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4016     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4017 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4018 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4019                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4020                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4021 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4022 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4023 enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4024 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4025 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4026 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4027 enabled libvpx     && {
4028     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4029                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4030     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 ||
4031                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4032     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4033     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4034 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4035                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4036                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4037 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4038 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4039 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4040                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4041                         die "ERROR: openal not found"; } &&
4042                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4043                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4044 enabled opencl     && require2 opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL
4045 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4046                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4047                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4048                         die "ERROR: openssl not found"; }
4049
4050 if enabled gnutls; then
4051     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4052     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4053 fi
4054
4055 # libdc1394 check
4056 if enabled libdc1394; then
4057     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4058         enable libdc1394_2; } ||
4059     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4060         enable libdc1394_1; } ||
4061     die "ERROR: No version of libdc1394 found "
4062 fi
4063
4064 SDL_CONFIG="${cross_prefix}sdl-config"
4065 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4066     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4067     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4068     enable sdl
4069 else
4070   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4071     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4072     sdl_libs=$("${SDL_CONFIG}" --libs)
4073     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4074     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4075     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4076     enable sdl
4077   fi
4078 fi
4079 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4080
4081 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4082 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4083 perl --version > /dev/null 2>&1 && enable perl || disable perl
4084 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4085 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4086
4087 check_header linux/fb.h
4088 check_header linux/videodev.h
4089 check_header linux/videodev2.h
4090 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4091
4092 check_header sys/videoio.h
4093
4094 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4095 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4096 # w32api 3.12 had it defined wrong
4097 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4098
4099 check_type "dshow.h" IBaseFilter
4100
4101 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4102 { check_header dev/bktr/ioctl_meteor.h &&
4103   check_header dev/bktr/ioctl_bt848.h; } ||
4104 { check_header machine/ioctl_meteor.h &&
4105   check_header machine/ioctl_bt848.h; } ||
4106 { check_header dev/video/meteor/ioctl_meteor.h &&
4107   check_header dev/video/bktr/ioctl_bt848.h; } ||
4108 check_header dev/ic/bt8xx.h
4109
4110 check_header sndio.h
4111 if check_struct sys/soundcard.h audio_buf_info bytes; then
4112     enable_safe sys/soundcard.h
4113 else
4114     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4115     #include <sys/soundcard.h>
4116     audio_buf_info abc;
4117 EOF
4118 fi
4119 check_header soundcard.h
4120
4121 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4122
4123 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4124     check_func jack_port_get_latency_range -ljack
4125
4126 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4127
4128 if enabled libcdio; then
4129     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
4130 fi
4131
4132 enabled x11grab                                           &&
4133 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4134 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4135 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4136
4137 if ! disabled vaapi; then
4138     check_lib va/va.h vaInitialize -lva && {
4139         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4140         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4141     } || disable vaapi
4142 fi
4143
4144 enabled vdpau &&
4145     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4146     disable vdpau
4147
4148 # Funny iconv installations are not unusual, so check it after all flags have been set
4149 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4150
4151 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4152 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"
4153
4154 # add some useful compiler flags if supported
4155 check_cflags -Wdeclaration-after-statement
4156 check_cflags -Wall
4157 check_cflags -Wno-parentheses
4158 check_cflags -Wno-switch
4159 check_cflags -Wno-format-zero-length
4160 check_cflags -Wdisabled-optimization
4161 check_cflags -Wpointer-arith
4162 check_cflags -Wredundant-decls
4163 check_cflags -Wno-pointer-sign
4164 check_cflags -Wwrite-strings
4165 check_cflags -Wtype-limits
4166 check_cflags -Wundef
4167 check_cflags -Wmissing-prototypes
4168 check_cflags -Wno-pointer-to-int-cast
4169 check_cflags -Wstrict-prototypes
4170 enabled extra_warnings && check_cflags -Winline
4171
4172 # add some linker flags
4173 check_ldflags -Wl,--warn-common
4174 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4175 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4176
4177 enabled xmm_clobber_test &&
4178     check_ldflags -Wl,--wrap,avcodec_open2              \
4179                   -Wl,--wrap,avcodec_decode_audio4      \
4180                   -Wl,--wrap,avcodec_decode_video2      \
4181                   -Wl,--wrap,avcodec_decode_subtitle2   \
4182                   -Wl,--wrap,avcodec_encode_audio2      \
4183                   -Wl,--wrap,avcodec_encode_video       \
4184                   -Wl,--wrap,avcodec_encode_subtitle    \
4185                   -Wl,--wrap,sws_scale ||
4186     disable xmm_clobber_test
4187
4188 echo "X{};" > $TMPV
4189 if test_ldflags -Wl,--version-script,$TMPV; then
4190     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4191     check_cc <<EOF && enable symver_asm_label
4192 void ff_foo(void) __asm__ ("av_foo@VERSION");
4193 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4194 EOF
4195     check_cc <<EOF && enable symver_gnu_asm
4196 __asm__(".symver ff_foo,av_foo@VERSION");
4197 void ff_foo(void) {}
4198 EOF
4199 fi
4200
4201 if [ -z "$optflags" ]; then
4202     if enabled small; then
4203         optflags=$cflags_size
4204     elif enabled optimizations; then
4205         optflags=$cflags_speed
4206     else
4207         optflags=$cflags_noopt
4208     fi
4209 fi
4210
4211 check_optflags(){
4212     check_cflags "$@"
4213     enabled lto && check_ldflags "$@"
4214 }
4215
4216
4217 if enabled lto; then
4218     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4219     check_cflags  -flto
4220     check_ldflags -flto $cpuflags
4221 fi
4222
4223 check_optflags $optflags
4224 check_optflags -fno-math-errno
4225 check_optflags -fno-signed-zeros
4226
4227 enabled ftrapv && check_cflags -ftrapv
4228
4229 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4230 int x;
4231 EOF
4232
4233
4234 if enabled icc; then
4235     # Just warnings, no remarks
4236     check_cflags -w1
4237     # -wd: Disable following warnings
4238     # 144, 167, 556: -Wno-pointer-sign
4239     # 188: enumerated type mixed with another type
4240     # 1292: attribute "foo" ignored
4241     # 1419: external declaration in primary source file
4242     # 10006: ignoring unknown option -fno-signed-zeros
4243     # 10148: ignoring unknown option -Wno-parentheses
4244     # 10156: ignoring option '-W'; no argument required
4245     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4246     # 11030: Warning unknown option --as-needed
4247     # 10156: ignoring option '-export'; no argument required
4248     check_ldflags -wd10156,11030
4249     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4250     enable ebp_available
4251     if enabled x86_32; then
4252         icc_version=$($cc -dumpversion)
4253         test ${icc_version%%.*} -ge 11 &&
4254             check_cflags -falign-stack=maintain-16-byte ||
4255             disable aligned_stack
4256     fi
4257 elif enabled ccc; then
4258     # disable some annoying warnings
4259     add_cflags -msg_disable bitnotint
4260     add_cflags -msg_disable mixfuncvoid
4261     add_cflags -msg_disable nonstandcast
4262     add_cflags -msg_disable unsupieee
4263 elif enabled gcc; then
4264     check_optflags -fno-tree-vectorize
4265     check_cflags -Werror=implicit-function-declaration
4266     check_cflags -Werror=missing-prototypes
4267     check_cflags -Werror=return-type
4268     check_cflags -Werror=vla
4269 elif enabled llvm_gcc; then
4270     check_cflags -mllvm -stack-alignment=16
4271 elif enabled clang; then
4272     check_cflags -mllvm -stack-alignment=16
4273     check_cflags -Qunused-arguments
4274     check_cflags -Werror=implicit-function-declaration
4275     check_cflags -Werror=missing-prototypes
4276     check_cflags -Werror=return-type
4277 elif enabled armcc; then
4278     # 2523: use of inline assembler is deprecated
4279     add_cflags -W${armcc_opt},--diag_suppress=2523
4280     add_cflags -W${armcc_opt},--diag_suppress=1207
4281     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4282     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4283     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4284     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4285 elif enabled tms470; then
4286     add_cflags -pds=824 -pds=837
4287 elif enabled pathscale; then
4288     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4289 elif enabled msvc; then
4290     enabled x86_32 && disable aligned_stack
4291 fi
4292
4293 case $target_os in
4294     osf1)
4295         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4296     ;;
4297     plan9)
4298         add_cppflags -Dmain=plan9_main
4299     ;;
4300 esac
4301
4302 enable frame_thread_encoder
4303 enabled_any $THREADS_LIST      && enable threads
4304 enabled_any $ATOMICS_LIST      && enable atomics_native
4305
4306 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4307
4308 check_deps $CONFIG_LIST       \
4309            $CONFIG_EXTRA      \
4310            $HAVE_LIST         \
4311            $ALL_COMPONENTS    \
4312
4313
4314 if test $target_os = "haiku"; then
4315     disable memalign
4316     disable posix_memalign
4317 fi
4318
4319 ! enabled_any memalign posix_memalign aligned_malloc &&
4320     enabled_any $need_memalign && enable memalign_hack
4321
4322 # add_dep lib dep
4323 # -> enable ${lib}_deps_${dep}
4324 # -> add $dep to ${lib}_deps only once
4325 add_dep() {
4326     lib=$1
4327     dep=$2
4328     enabled "${lib}_deps_${dep}" && return 0
4329     enable  "${lib}_deps_${dep}"
4330     prepend "${lib}_deps" $dep
4331 }
4332
4333 # merge deps lib components
4334 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4335 merge_deps() {
4336     lib=$1
4337     shift
4338     for comp in $*; do
4339         enabled $comp || continue
4340         eval "dep=\"\$${comp}_deps\""
4341         for d in $dep; do
4342             add_dep $lib $d
4343         done
4344     done
4345 }
4346
4347 merge_deps libavfilter $FILTER_LIST
4348
4349 echo "install prefix            $prefix"
4350 echo "source path               $source_path"
4351 echo "C compiler                $cc"
4352 echo "ARCH                      $arch ($cpu)"
4353 if test "$build_suffix" != ""; then
4354     echo "build suffix              $build_suffix"
4355 fi
4356 if test "$progs_suffix" != ""; then
4357     echo "progs suffix              $progs_suffix"
4358 fi
4359 if test "$extra_version" != ""; then
4360     echo "version string suffix     $extra_version"
4361 fi
4362 echo "big-endian                ${bigendian-no}"
4363 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4364 if enabled x86; then
4365     echo "${yasmexe}                      ${yasm-no}"
4366     echo "MMX enabled               ${mmx-no}"
4367     echo "MMXEXT enabled            ${mmxext-no}"
4368     echo "3DNow! enabled            ${amd3dnow-no}"
4369     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4370     echo "SSE enabled               ${sse-no}"
4371     echo "SSSE3 enabled             ${ssse3-no}"
4372     echo "AVX enabled               ${avx-no}"
4373     echo "FMA4 enabled              ${fma4-no}"
4374     echo "CMOV enabled              ${cmov-no}"
4375     echo "CMOV is fast              ${fast_cmov-no}"
4376     echo "EBX available             ${ebx_available-no}"
4377     echo "EBP available             ${ebp_available-no}"
4378 fi
4379 if enabled arm; then
4380     echo "ARMv5TE enabled           ${armv5te-no}"
4381     echo "ARMv6 enabled             ${armv6-no}"
4382     echo "ARMv6T2 enabled           ${armv6t2-no}"
4383     echo "VFP enabled               ${vfp-no}"
4384     echo "NEON enabled              ${neon-no}"
4385     echo "THUMB enabled             ${thumb-no}"
4386 fi
4387 if enabled mips; then
4388     echo "MIPS FPU enabled          ${mipsfpu-no}"
4389     echo "MIPS32R2 enabled          ${mips32r2-no}"
4390     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4391     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4392 fi
4393 if enabled ppc; then
4394     echo "AltiVec enabled           ${altivec-no}"
4395     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4396     echo "dcbzl available           ${dcbzl-no}"
4397 fi
4398 if enabled sparc; then
4399     echo "VIS enabled               ${vis-no}"
4400 fi
4401 echo "debug symbols             ${debug-no}"
4402 echo "strip symbols             ${stripping-no}"
4403 echo "optimize for size         ${small-no}"
4404 echo "optimizations             ${optimizations-no}"
4405 echo "static                    ${static-no}"
4406 echo "shared                    ${shared-no}"
4407 echo "postprocessing support    ${postproc-no}"
4408 echo "new filter support        ${avfilter-no}"
4409 echo "network support           ${network-no}"
4410 echo "threading support         ${thread_type-no}"
4411 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4412 echo "SDL support               ${sdl-no}"
4413 echo "opencl enabled            ${opencl-no}"
4414 echo "libshine enabled          ${libshine-no}"
4415 echo "texi2html enabled         ${texi2html-no}"
4416 echo "perl enabled              ${perl-no}"
4417 echo "pod2man enabled           ${pod2man-no}"
4418 echo "makeinfo enabled          ${makeinfo-no}"
4419 test -n "$random_seed" &&
4420     echo "random seed               ${random_seed}"
4421 echo
4422
4423 echo "External libraries:"
4424 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4425 echo
4426
4427 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4428     echo "Enabled ${type}s:"
4429     eval list=\$$(toupper $type)_LIST
4430     print_enabled '_*' $list | print_3_columns
4431     echo
4432 done
4433
4434 license="LGPL version 2.1 or later"
4435 if enabled nonfree; then
4436     license="nonfree and unredistributable"
4437 elif enabled gplv3; then
4438     license="GPL version 3 or later"
4439 elif enabled lgplv3; then
4440     license="LGPL version 3 or later"
4441 elif enabled gpl; then
4442     license="GPL version 2 or later"
4443 fi
4444
4445 echo "License: $license"
4446
4447 echo "Creating config.mak, config.h, and doc/config.texi..."
4448
4449 test -e Makefile || $ln_s "$source_path/Makefile" .
4450
4451 enabled stripping || strip="echo skipping strip"
4452
4453 config_files="$TMPH config.mak doc/config.texi"
4454
4455 cat > config.mak <<EOF
4456 # Automatically generated by configure - do not modify!
4457 ifndef FFMPEG_CONFIG_MAK
4458 FFMPEG_CONFIG_MAK=1
4459 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4460 prefix=$prefix
4461 LIBDIR=\$(DESTDIR)$libdir
4462 SHLIBDIR=\$(DESTDIR)$shlibdir
4463 INCDIR=\$(DESTDIR)$incdir
4464 BINDIR=\$(DESTDIR)$bindir
4465 DATADIR=\$(DESTDIR)$datadir
4466 MANDIR=\$(DESTDIR)$mandir
4467 SRC_PATH=$source_path
4468 ifndef MAIN_MAKEFILE
4469 SRC_PATH:=\$(SRC_PATH:.%=..%)
4470 endif
4471 CC_IDENT=$cc_ident
4472 ARCH=$arch
4473 CC=$cc
4474 CXX=$cxx
4475 AS=$as
4476 LD=$ld
4477 DEPCC=$dep_cc
4478 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4479 DEPAS=$as
4480 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4481 YASM=$yasmexe
4482 DEPYASM=$yasmexe
4483 AR=$ar
4484 ARFLAGS=$arflags
4485 AR_O=$ar_o
4486 RANLIB=$ranlib
4487 CP=cp -p
4488 LN_S=$ln_s
4489 STRIP=$strip
4490 CPPFLAGS=$CPPFLAGS
4491 CFLAGS=$CFLAGS
4492 CXXFLAGS=$CXXFLAGS
4493 ASFLAGS=$ASFLAGS
4494 AS_C=$AS_C
4495 AS_O=$AS_O
4496 CC_C=$CC_C
4497 CC_E=$CC_E
4498 CC_O=$CC_O
4499 CXX_C=$CXX_C
4500 CXX_O=$CXX_O
4501 LD_O=$LD_O
4502 LD_LIB=$LD_LIB
4503 LD_PATH=$LD_PATH
4504 DLLTOOL=$dlltool
4505 LDFLAGS=$LDFLAGS
4506 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4507 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4508 YASMFLAGS=$YASMFLAGS
4509 BUILDSUF=$build_suffix
4510 PROGSSUF=$progs_suffix
4511 FULLNAME=$FULLNAME
4512 LIBPREF=$LIBPREF
4513 LIBSUF=$LIBSUF
4514 LIBNAME=$LIBNAME
4515 SLIBPREF=$SLIBPREF
4516 SLIBSUF=$SLIBSUF
4517 EXESUF=$EXESUF
4518 EXTRA_VERSION=$extra_version
4519 CCDEP=$CCDEP
4520 CXXDEP=$CXXDEP
4521 CCDEP_FLAGS=$CCDEP_FLAGS
4522 ASDEP=$ASDEP
4523 ASDEP_FLAGS=$ASDEP_FLAGS
4524 CC_DEPFLAGS=$CC_DEPFLAGS
4525 AS_DEPFLAGS=$AS_DEPFLAGS
4526 HOSTCC=$host_cc
4527 HOSTLD=$host_ld
4528 HOSTCFLAGS=$host_cflags
4529 HOSTCPPFLAGS=$host_cppflags
4530 HOSTEXESUF=$HOSTEXESUF
4531 HOSTLDFLAGS=$host_ldflags
4532 HOSTLIBS=$host_libs
4533 DEPHOSTCC=$host_cc
4534 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4535 HOSTCCDEP=$HOSTCCDEP
4536 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4537 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4538 HOSTCC_C=$HOSTCC_C
4539 HOSTCC_O=$HOSTCC_O
4540 HOSTLD_O=$HOSTLD_O
4541 TARGET_EXEC=$target_exec
4542 TARGET_PATH=$target_path
4543 LIBS-ffplay=$sdl_libs
4544 CFLAGS-ffplay=$sdl_cflags
4545 ZLIB=$($ldflags_filter -lz)
4546 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4547 EXTRALIBS=$extralibs
4548 COMPAT_OBJS=$compat_objs
4549 EXEOBJS=$exeobjs
4550 INSTALL=$install
4551 LIBTARGET=${LIBTARGET}
4552 SLIBNAME=${SLIBNAME}
4553 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4554 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4555 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4556 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4557 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4558 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4559 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4560 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4561 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4562 NOREDZONE_FLAGS=$noredzone_flags
4563 EOF
4564
4565 get_version(){
4566     lcname=lib${1}
4567     name=$(toupper $lcname)
4568     file=$source_path/$lcname/version.h
4569     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4570     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4571     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4572     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4573     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4574 }
4575
4576 map 'get_version $v' $LIBRARY_LIST
4577
4578 cat > $TMPH <<EOF
4579 /* Automatically generated by configure - do not modify! */
4580 #ifndef FFMPEG_CONFIG_H
4581 #define FFMPEG_CONFIG_H
4582 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4583 #define FFMPEG_LICENSE "$(c_escape $license)"
4584 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4585 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4586 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4587 #define av_restrict $_restrict
4588 #define EXTERN_PREFIX "${extern_prefix}"
4589 #define EXTERN_ASM ${extern_prefix}
4590 #define SLIBSUF "$SLIBSUF"
4591 #define HAVE_MMX2 HAVE_MMXEXT
4592 EOF
4593
4594 test -n "$assert_level" &&
4595     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4596
4597 test -n "$malloc_prefix" &&
4598     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4599
4600 if enabled yasm; then
4601     append config_files $TMPASM
4602     printf '' >$TMPASM
4603 fi
4604
4605 mkdir -p doc
4606 echo "@c auto-generated by configure" > doc/config.texi
4607
4608 print_config ARCH_   "$config_files" $ARCH_LIST
4609 print_config HAVE_   "$config_files" $HAVE_LIST
4610 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4611                                      $CONFIG_EXTRA      \
4612                                      $ALL_COMPONENTS    \
4613
4614 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4615 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4616
4617 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4618 cp_if_changed $TMPH config.h
4619 touch .config
4620
4621 enabled yasm && cp_if_changed $TMPASM config.asm
4622
4623 cat > $TMPH <<EOF
4624 /* Generated by ffconf */
4625 #ifndef AVUTIL_AVCONFIG_H
4626 #define AVUTIL_AVCONFIG_H
4627 EOF
4628
4629 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4630
4631 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4632
4633 cp_if_changed $TMPH libavutil/avconfig.h
4634
4635 if test -n "$WARNINGS"; then
4636     printf "\n$WARNINGS"
4637     enabled fatal_warnings && exit 1
4638 fi
4639
4640 # build pkg-config files
4641
4642 pkgconfig_generate(){
4643     name=$1
4644     shortname=${name#lib}${build_suffix}
4645     comment=$2
4646     version=$3
4647     libs=$4
4648     requires=$5
4649     enabled ${name#lib} || return 0
4650     mkdir -p $name
4651     cat <<EOF > $name/$name${build_suffix}.pc
4652 prefix=$prefix
4653 exec_prefix=\${prefix}
4654 libdir=$libdir
4655 includedir=$incdir
4656
4657 Name: $name
4658 Description: $comment
4659 Version: $version
4660 Requires: $(enabled shared || echo $requires)
4661 Requires.private: $(enabled shared && echo $requires)
4662 Conflicts:
4663 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4664 Libs.private: $(enabled shared && echo $libs)
4665 Cflags: -I\${includedir}
4666 EOF
4667
4668 mkdir -p doc/examples/pc-uninstalled
4669 includedir=${source_path}
4670 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4671     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4672 prefix=
4673 exec_prefix=
4674 libdir=\${pcfiledir}/../../../$name
4675 includedir=${includedir}
4676
4677 Name: $name
4678 Description: $comment
4679 Version: $version
4680 Requires: $requires
4681 Conflicts:
4682 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4683 Cflags: -I\${includedir}
4684 EOF
4685 }
4686
4687 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4688 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4689 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4690 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4691 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4692 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4693 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4694 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4695
4696 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4697 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4698
4699 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4700 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4701 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4702 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4703 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4704 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4705 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4706 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4707 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4708
4709 fix_ffmpeg_remote(){
4710     git_remote_from=$1
4711     git_remote_to=$2
4712     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4713     if [ "$fixme_remote" != "" ]; then
4714         echolog "
4715 Outdated domain in git config, the official domain for ffmpeg git is since
4716 November 2011, source.ffmpeg.org, both the old and the new point to the same
4717 repository and server. To update it enter the following commands:
4718 "
4719         for remote in $fixme_remote; do
4720             echolog "git remote set-url $remote $git_remote_to"
4721         done
4722     fi
4723 }
4724
4725 if test -f "$source_path/.git/config"; then
4726     remote_from=git.videolan.org
4727     remote_to=source.ffmpeg.org
4728     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4729     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4730 fi