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     cl_cl_h
1412     clock_gettime
1413     closesocket
1414     cmov
1415     CommandLineToArgvW
1416     cpunop
1417     CryptGenRandom
1418     dcbzl
1419     dev_bktr_ioctl_bt848_h
1420     dev_bktr_ioctl_meteor_h
1421     dev_ic_bt8xx_h
1422     dev_video_bktr_ioctl_bt848_h
1423     dev_video_meteor_ioctl_meteor_h
1424     direct_h
1425     dlfcn_h
1426     dlopen
1427     dos_paths
1428     dxva_h
1429     ebp_available
1430     ebx_available
1431     fast_64bit
1432     fast_clz
1433     fast_cmov
1434     fcntl
1435     fork
1436     getaddrinfo
1437     gethrtime
1438     getopt
1439     GetProcessAffinityMask
1440     GetProcessMemoryInfo
1441     GetProcessTimes
1442     GetSystemTimeAsFileTime
1443     getrusage
1444     getservbyport
1445     gettimeofday
1446     glob
1447     gnu_as
1448     gsm_h
1449     ibm_asm
1450     inet_aton
1451     io_h
1452     isatty
1453     jack_port_get_latency_range
1454     kbhit
1455     ldbrx
1456     libdc1394_1
1457     libdc1394_2
1458     local_aligned_16
1459     local_aligned_8
1460     localtime_r
1461     loongson
1462     lzo1x_999_compress
1463     machine_ioctl_bt848_h
1464     machine_ioctl_meteor_h
1465     machine_rw_barrier
1466     makeinfo
1467     malloc_h
1468     MapViewOfFile
1469     memalign
1470     MemoryBarrier
1471     mkstemp
1472     mm_empty
1473     mmap
1474     mprotect
1475     msvcrt
1476     nanosleep
1477     openjpeg_1_5_openjpeg_h
1478     PeekNamedPipe
1479     perl
1480     pod2man
1481     poll_h
1482     posix_memalign
1483     pthread_cancel
1484     rdtsc
1485     rsync_contimeout
1486     sched_getaffinity
1487     sdl
1488     SetConsoleTextAttribute
1489     setmode
1490     setrlimit
1491     Sleep
1492     sndio_h
1493     socklen_t
1494     soundcard_h
1495     strerror_r
1496     struct_addrinfo
1497     struct_group_source_req
1498     struct_ip_mreq_source
1499     struct_ipv6_mreq
1500     struct_pollfd
1501     struct_rusage_ru_maxrss
1502     struct_sctp_event_subscribe
1503     struct_sockaddr_in6
1504     struct_sockaddr_sa_len
1505     struct_sockaddr_storage
1506     struct_v4l2_frmivalenum_discrete
1507     symver_asm_label
1508     symver_gnu_asm
1509     sync_val_compare_and_swap
1510     sysconf
1511     sysctl
1512     sys_mman_h
1513     sys_param_h
1514     sys_resource_h
1515     sys_select_h
1516     sys_soundcard_h
1517     sys_time_h
1518     sys_videoio_h
1519     termios_h
1520     texi2html
1521     threads
1522     unistd_h
1523     usleep
1524     vfp_args
1525     VirtualAlloc
1526     windows_h
1527     winsock2_h
1528     xform_asm
1529     xmm_clobbers
1530 "
1531
1532 # options emitted with CONFIG_ prefix but not available on the command line
1533 CONFIG_EXTRA="
1534     aandcttables
1535     ac3dsp
1536     audio_frame_queue
1537     dsputil
1538     frame_thread_encoder
1539     gcrypt
1540     golomb
1541     gplv3
1542     h264chroma
1543     h264dsp
1544     h264pred
1545     h264qpel
1546     hpeldsp
1547     huffman
1548     lgplv3
1549     lpc
1550     mpegaudio
1551     mpegaudiodsp
1552     mpegvideo
1553     mpegvideoenc
1554     nettle
1555     rangecoder
1556     rtpdec
1557     rtpenc_chain
1558     sinewin
1559     videodsp
1560     vp3dsp
1561 "
1562
1563 CMDLINE_SELECT="
1564     $ARCH_EXT_LIST
1565     $CONFIG_LIST
1566     $HAVE_LIST_CMDLINE
1567     $THREADS_LIST
1568     asm
1569     cross_compile
1570     debug
1571     extra_warnings
1572     logging
1573     lto
1574     optimizations
1575     stripping
1576 "
1577
1578 PATHS_LIST='
1579     bindir
1580     datadir
1581     incdir
1582     libdir
1583     mandir
1584     prefix
1585     shlibdir
1586 '
1587
1588 CMDLINE_SET="
1589     $PATHS_LIST
1590     ar
1591     arch
1592     as
1593     assert_level
1594     build_suffix
1595     cc
1596     cpu
1597     cross_prefix
1598     cxx
1599     dep_cc
1600     extra_version
1601     host_cc
1602     host_cflags
1603     host_ld
1604     host_ldflags
1605     host_libs
1606     host_os
1607     install
1608     ld
1609     logfile
1610     malloc_prefix
1611     nm
1612     optflags
1613     pkg_config
1614     progs_suffix
1615     random_seed
1616     samples
1617     strip
1618     sysinclude
1619     sysroot
1620     target_exec
1621     target_os
1622     target_path
1623     toolchain
1624     valgrind
1625     yasmexe
1626 "
1627
1628 CMDLINE_APPEND="
1629     extra_cflags
1630     extra_cxxflags
1631     host_cppflags
1632 "
1633
1634 # code dependency declarations
1635
1636 # architecture extensions
1637
1638 armv5te_deps="arm"
1639 armv6_deps="arm"
1640 armv6t2_deps="arm"
1641 neon_deps="arm"
1642 vfp_deps="arm"
1643 vfpv3_deps="vfp"
1644
1645 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1646
1647 mipsfpu_deps="mips"
1648 mips32r2_deps="mips"
1649 mipsdspr1_deps="mips"
1650 mipsdspr2_deps="mips"
1651
1652 altivec_deps="ppc"
1653 ppc4xx_deps="ppc"
1654
1655 vis_deps="sparc"
1656
1657 x86_64_suggest="cmov fast_cmov"
1658
1659 amd3dnow_deps="mmx"
1660 amd3dnowext_deps="amd3dnow"
1661 mmx_deps="x86"
1662 mmxext_deps="mmx"
1663 sse_deps="mmxext"
1664 sse2_deps="sse"
1665 sse3_deps="sse2"
1666 ssse3_deps="sse3"
1667 sse4_deps="ssse3"
1668 sse42_deps="sse4"
1669 avx_deps="sse42"
1670 fma4_deps="avx"
1671
1672 mmx_external_deps="yasm"
1673 mmx_inline_deps="inline_asm"
1674 mmx_suggest="mmx_external mmx_inline"
1675
1676 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1677     eval dep=\$${ext}_deps
1678     eval ${ext}_external_deps='"${dep}_external"'
1679     eval ${ext}_inline_deps='"${dep}_inline"'
1680     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1681 done
1682
1683 aligned_stack_if_any="ppc x86"
1684 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1685 fast_clz_if_any="alpha avr32 mips ppc x86"
1686 fast_unaligned_if_any="ppc x86"
1687
1688 inline_asm_deps="!tms470"
1689 need_memalign="altivec neon sse"
1690
1691 symver_if_any="symver_asm_label symver_gnu_asm"
1692
1693 log2_deps="!msvcrt"
1694
1695 # subsystems
1696 dct_select="rdft"
1697 error_resilience_select="dsputil"
1698 frame_thread_encoder_deps="encoders threads"
1699 lpc_select="dsputil"
1700 mdct_select="fft"
1701 rdft_select="fft"
1702 mpegaudio_select="mpegaudiodsp"
1703 mpegaudiodsp_select="dct"
1704 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1705 mpegvideoenc_select="mpegvideo"
1706
1707 # decoders / encoders
1708 aac_decoder_select="mdct sinewin"
1709 aac_encoder_select="audio_frame_queue mdct sinewin"
1710 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1711 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1712 ac3_encoder_select="mdct ac3dsp dsputil"
1713 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1714 alac_encoder_select="lpc"
1715 als_decoder_select="dsputil"
1716 amrnb_decoder_select="lsp"
1717 amrwb_decoder_select="lsp"
1718 amv_decoder_select="dsputil hpeldsp"
1719 amv_encoder_select="aandcttables"
1720 ape_decoder_select="dsputil"
1721 asv1_decoder_select="dsputil"
1722 asv1_encoder_select="dsputil"
1723 asv2_decoder_select="dsputil"
1724 asv2_encoder_select="dsputil"
1725 atrac1_decoder_select="mdct sinewin"
1726 atrac3_decoder_select="mdct"
1727 bink_decoder_select="dsputil hpeldsp"
1728 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1729 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1730 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1731 cllc_decoder_select="dsputil"
1732 comfortnoise_encoder_select="lpc"
1733 cook_decoder_select="dsputil mdct sinewin"
1734 cscd_decoder_select="lzo"
1735 cscd_decoder_suggest="zlib"
1736 dca_decoder_select="mdct"
1737 dirac_decoder_select="dsputil dwt golomb videodsp"
1738 dnxhd_decoder_select="dsputil"
1739 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1740 dvvideo_decoder_select="dsputil"
1741 dvvideo_encoder_select="dsputil"
1742 dxa_decoder_select="zlib"
1743 eac3_decoder_select="ac3_decoder"
1744 eac3_encoder_select="ac3_encoder"
1745 eamad_decoder_select="aandcttables dsputil mpegvideo"
1746 eatgq_decoder_select="aandcttables"
1747 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1748 exr_decoder_select="zlib"
1749 ffv1_decoder_select="dsputil golomb rangecoder"
1750 ffv1_encoder_select="dsputil rangecoder"
1751 ffvhuff_decoder_select="dsputil"
1752 ffvhuff_encoder_select="dsputil huffman"
1753 flac_decoder_select="golomb"
1754 flac_encoder_select="dsputil golomb lpc"
1755 flashsv_decoder_select="zlib"
1756 flashsv_encoder_select="zlib"
1757 flashsv2_encoder_select="zlib"
1758 flashsv2_decoder_select="zlib"
1759 flv_decoder_select="h263_decoder"
1760 flv_encoder_select="h263_encoder"
1761 fourxm_decoder_select="dsputil"
1762 fraps_decoder_select="dsputil huffman"
1763 g729_decoder_select="dsputil"
1764 h261_decoder_select="error_resilience mpegvideo"
1765 h261_encoder_select="aandcttables mpegvideoenc"
1766 h263_decoder_select="error_resilience h263_parser mpegvideo"
1767 h263_encoder_select="aandcttables mpegvideoenc"
1768 h263i_decoder_select="h263_decoder"
1769 h263p_encoder_select="h263_encoder"
1770 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1771 h264_decoder_suggest="error_resilience"
1772 huffyuv_decoder_select="dsputil"
1773 huffyuv_encoder_select="dsputil huffman"
1774 iac_decoder_select="dsputil fft mdct sinewin"
1775 imc_decoder_select="dsputil fft mdct sinewin"
1776 indeo3_decoder_select="hpeldsp"
1777 interplay_video_decoder_select="hpeldsp"
1778 jpegls_decoder_select="dsputil golomb hpeldsp"
1779 jpegls_encoder_select="golomb"
1780 jv_decoder_select="dsputil"
1781 lagarith_decoder_select="dsputil"
1782 ljpeg_encoder_select="aandcttables mpegvideoenc"
1783 loco_decoder_select="golomb"
1784 mdec_decoder_select="dsputil error_resilience mpegvideo"
1785 mimic_decoder_select="dsputil hpeldsp"
1786 mjpeg_decoder_select="dsputil hpeldsp"
1787 mjpegb_decoder_select="dsputil hpeldsp"
1788 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1789 mlp_decoder_select="dsputil mlp_parser"
1790 motionpixels_decoder_select="dsputil"
1791 mp1_decoder_select="mpegaudio"
1792 mp1float_decoder_select="mpegaudio"
1793 mp2_decoder_select="mpegaudio"
1794 mp2float_decoder_select="mpegaudio"
1795 mp3_decoder_select="mpegaudio"
1796 mp3adu_decoder_select="mpegaudio"
1797 mp3adufloat_decoder_select="mpegaudio"
1798 mp3float_decoder_select="mpegaudio"
1799 mp3on4_decoder_select="mpegaudio"
1800 mp3on4float_decoder_select="mpegaudio"
1801 mpc7_decoder_select="dsputil mpegaudiodsp"
1802 mpc8_decoder_select="dsputil mpegaudiodsp"
1803 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1804 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1805 mpeg1video_decoder_select="error_resilience mpegvideo"
1806 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1807 mpeg2video_decoder_select="error_resilience mpegvideo"
1808 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1809 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1810 mpeg4_encoder_select="h263_encoder"
1811 msmpeg4v1_decoder_select="h263_decoder"
1812 msmpeg4v2_decoder_select="h263_decoder"
1813 msmpeg4v2_encoder_select="h263_encoder"
1814 msmpeg4v3_decoder_select="h263_decoder"
1815 msmpeg4v3_encoder_select="h263_encoder"
1816 mss2_decoder_select="error_resilience vc1_decoder"
1817 mxpeg_decoder_select="dsputil hpeldsp"
1818 nellymoser_decoder_select="mdct sinewin"
1819 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1820 nuv_decoder_select="dsputil lzo"
1821 png_decoder_select="zlib"
1822 png_encoder_select="dsputil zlib"
1823 prores_decoder_select="dsputil"
1824 prores_encoder_select="dsputil"
1825 qcelp_decoder_select="lsp"
1826 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1827 ra_144_encoder_select="audio_frame_queue lpc"
1828 ralf_decoder_select="golomb"
1829 rtjpeg_decoder_select="dsputil"
1830 rv10_decoder_select="error_resilience h263_decoder"
1831 rv10_encoder_select="h263_encoder"
1832 rv20_decoder_select="error_resilience h263_decoder"
1833 rv20_encoder_select="h263_encoder"
1834 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1835 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1836 shorten_decoder_select="golomb"
1837 sipr_decoder_select="lsp"
1838 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1839 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1840 sonic_decoder_select="golomb"
1841 sonic_encoder_select="golomb"
1842 sonic_ls_encoder_select="golomb"
1843 sp5x_decoder_select="dsputil hpeldsp"
1844 svq1_decoder_select="hpeldsp"
1845 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1846 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1847 svq3_decoder_suggest="error_resilience zlib"
1848 tak_decoder_select="dsputil"
1849 theora_decoder_select="vp3_decoder"
1850 tiff_decoder_suggest="zlib"
1851 tiff_encoder_suggest="zlib"
1852 thp_decoder_select="dsputil hpeldsp"
1853 truehd_decoder_select="mlp_parser"
1854 truemotion2_decoder_select="dsputil"
1855 truespeech_decoder_select="dsputil"
1856 tscc_decoder_select="zlib"
1857 twinvq_decoder_select="mdct lsp sinewin"
1858 utvideo_decoder_select="dsputil"
1859 utvideo_encoder_select="dsputil huffman"
1860 vble_decoder_select="dsputil"
1861 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1862 vc1image_decoder_select="vc1_decoder"
1863 vorbis_decoder_select="mdct"
1864 vorbis_encoder_select="mdct"
1865 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1866 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1867 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1868 vp6a_decoder_select="vp6_decoder"
1869 vp6f_decoder_select="vp6_decoder"
1870 vp8_decoder_select="h264pred videodsp"
1871 wmapro_decoder_select="mdct sinewin"
1872 wmav1_decoder_select="mdct sinewin"
1873 wmav1_encoder_select="mdct sinewin"
1874 wmav2_decoder_select="mdct sinewin"
1875 wmav2_encoder_select="mdct sinewin"
1876 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1877 wmv1_decoder_select="h263_decoder"
1878 wmv1_encoder_select="h263_encoder"
1879 wmv2_decoder_select="h263_decoder videodsp"
1880 wmv2_encoder_select="h263_encoder"
1881 wmv3_decoder_select="vc1_decoder"
1882 wmv3image_decoder_select="wmv3_decoder"
1883 zerocodec_decoder_select="zlib"
1884 zlib_decoder_select="zlib"
1885 zlib_encoder_select="zlib"
1886 zmbv_decoder_select="zlib"
1887 zmbv_encoder_select="zlib"
1888
1889 # hardware accelerators
1890 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1891 dxva2_deps="dxva2api_h"
1892 vaapi_deps="va_va_h"
1893 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1894 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1895 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1896
1897 h263_vaapi_hwaccel_deps="vaapi"
1898 h263_vaapi_hwaccel_select="h263_decoder"
1899 h263_vdpau_hwaccel_deps="vdpau"
1900 h263_vdpau_hwaccel_select="h263_decoder"
1901 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1902 h264_dxva2_hwaccel_deps="dxva2"
1903 h264_dxva2_hwaccel_select="h264_decoder"
1904 h264_vaapi_hwaccel_deps="vaapi"
1905 h264_vaapi_hwaccel_select="h264_decoder"
1906 h264_vda_decoder_deps="vda"
1907 h264_vda_decoder_select="h264_decoder"
1908 h264_vda_hwaccel_deps="vda"
1909 h264_vda_hwaccel_select="h264_decoder"
1910 h264_vdpau_decoder_deps="vdpau"
1911 h264_vdpau_decoder_select="h264_decoder"
1912 h264_vdpau_hwaccel_deps="vdpau"
1913 h264_vdpau_hwaccel_select="h264_decoder"
1914 mpeg_vdpau_decoder_deps="vdpau"
1915 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1916 mpeg1_vdpau_decoder_deps="vdpau"
1917 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1918 mpeg1_vdpau_hwaccel_deps="vdpau"
1919 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1920 mpeg2_crystalhd_decoder_select="crystalhd"
1921 mpeg2_dxva2_hwaccel_deps="dxva2"
1922 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1923 mpeg2_vaapi_hwaccel_deps="vaapi"
1924 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1925 mpeg2_vdpau_hwaccel_deps="vdpau"
1926 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1927 mpeg4_crystalhd_decoder_select="crystalhd"
1928 mpeg4_vaapi_hwaccel_deps="vaapi"
1929 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1930 mpeg4_vdpau_decoder_deps="vdpau"
1931 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1932 mpeg4_vdpau_hwaccel_deps="vdpau"
1933 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1934 msmpeg4_crystalhd_decoder_select="crystalhd"
1935 vc1_crystalhd_decoder_select="crystalhd"
1936 vc1_dxva2_hwaccel_deps="dxva2"
1937 vc1_dxva2_hwaccel_select="vc1_decoder"
1938 vc1_vaapi_hwaccel_deps="vaapi"
1939 vc1_vaapi_hwaccel_select="vc1_decoder"
1940 vc1_vdpau_decoder_deps="vdpau"
1941 vc1_vdpau_decoder_select="vc1_decoder"
1942 vc1_vdpau_hwaccel_deps="vdpau"
1943 vc1_vdpau_hwaccel_select="vc1_decoder"
1944 wmv3_crystalhd_decoder_select="crystalhd"
1945 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1946 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1947 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1948 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1949
1950 # parsers
1951 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1952 mpeg4video_parser_select="error_resilience mpegvideo"
1953 mpegvideo_parser_select="error_resilience mpegvideo"
1954 vc1_parser_select="mpegvideo"
1955
1956 # external libraries
1957 libaacplus_encoder_deps="libaacplus"
1958 libcelt_decoder_deps="libcelt"
1959 libfaac_encoder_deps="libfaac"
1960 libfaac_encoder_select="audio_frame_queue"
1961 libfdk_aac_encoder_deps="libfdk_aac"
1962 libfdk_aac_encoder_select="audio_frame_queue"
1963 libgsm_decoder_deps="libgsm"
1964 libgsm_encoder_deps="libgsm"
1965 libgsm_ms_decoder_deps="libgsm"
1966 libgsm_ms_encoder_deps="libgsm"
1967 libilbc_decoder_deps="libilbc"
1968 libilbc_encoder_deps="libilbc"
1969 libmodplug_demuxer_deps="libmodplug"
1970 libmp3lame_encoder_deps="libmp3lame"
1971 libmp3lame_encoder_select="audio_frame_queue"
1972 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1973 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1974 libopencore_amrnb_encoder_select="audio_frame_queue"
1975 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1976 libopenjpeg_decoder_deps="libopenjpeg"
1977 libopenjpeg_encoder_deps="libopenjpeg"
1978 libopus_decoder_deps="libopus"
1979 libopus_encoder_deps="libopus"
1980 libopus_encoder_select="audio_frame_queue"
1981 libquvi_demuxer_deps="libquvi"
1982 libschroedinger_decoder_deps="libschroedinger"
1983 libschroedinger_encoder_deps="libschroedinger"
1984 libshine_encoder_deps="libshine"
1985 libshine_encoder_select="audio_frame_queue"
1986 libspeex_decoder_deps="libspeex"
1987 libspeex_encoder_deps="libspeex"
1988 libspeex_encoder_select="audio_frame_queue"
1989 libstagefright_h264_decoder_deps="libstagefright_h264"
1990 libtheora_encoder_deps="libtheora"
1991 libtwolame_encoder_deps="libtwolame"
1992 libvo_aacenc_encoder_deps="libvo_aacenc"
1993 libvo_aacenc_encoder_select="audio_frame_queue"
1994 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1995 libvorbis_decoder_deps="libvorbis"
1996 libvorbis_encoder_deps="libvorbis"
1997 libvorbis_encoder_select="audio_frame_queue"
1998 libvpx_vp8_decoder_deps="libvpx"
1999 libvpx_vp8_encoder_deps="libvpx"
2000 libvpx_vp9_decoder_deps="libvpx"
2001 libvpx_vp9_encoder_deps="libvpx"
2002 libx264_encoder_deps="libx264"
2003 libx264rgb_encoder_deps="libx264"
2004 libxavs_encoder_deps="libxavs"
2005 libxvid_encoder_deps="libxvid"
2006 libutvideo_decoder_deps="libutvideo"
2007 libutvideo_encoder_deps="libutvideo"
2008
2009 # demuxers / muxers
2010 ac3_demuxer_select="ac3_parser"
2011 asf_stream_muxer_select="asf_muxer"
2012 avisynth_demuxer_deps="avisynth"
2013 dirac_demuxer_select="dirac_parser"
2014 dts_demuxer_select="dca_parser"
2015 dtshd_demuxer_select="dca_parser"
2016 eac3_demuxer_select="ac3_parser"
2017 f4v_muxer_select="mov_muxer"
2018 flac_demuxer_select="flac_parser"
2019 ipod_muxer_select="mov_muxer"
2020 ismv_muxer_select="mov_muxer"
2021 libnut_demuxer_deps="libnut"
2022 libnut_muxer_deps="libnut"
2023 matroska_audio_muxer_select="matroska_muxer"
2024 matroska_demuxer_suggest="bzlib lzo zlib"
2025 mov_demuxer_suggest="zlib"
2026 mov_muxer_select="rtpenc_chain"
2027 mp3_demuxer_select="mpegaudio_parser"
2028 mp4_muxer_select="mov_muxer"
2029 mpegts_muxer_select="adts_muxer latm_muxer"
2030 mpegtsraw_demuxer_select="mpegts_demuxer"
2031 mxf_d10_muxer_select="mxf_muxer"
2032 ogg_demuxer_select="golomb"
2033 psp_muxer_select="mov_muxer"
2034 rtp_demuxer_select="sdp_demuxer"
2035 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2036 rtsp_demuxer_select="http_protocol rtpdec"
2037 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2038 sap_demuxer_select="sdp_demuxer"
2039 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2040 sdp_demuxer_select="rtpdec"
2041 smoothstreaming_muxer_select="ismv_muxer"
2042 spdif_muxer_select="aac_parser"
2043 tak_demuxer_select="tak_parser"
2044 tg2_muxer_select="mov_muxer"
2045 tgp_muxer_select="mov_muxer"
2046 vobsub_demuxer_select="mpegps_demuxer"
2047 w64_demuxer_deps="wav_demuxer"
2048 w64_muxer_deps="wav_muxer"
2049
2050 # indevs / outdevs
2051 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2052 alsa_outdev_deps="alsa_asoundlib_h"
2053 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2054 caca_outdev_deps="libcaca"
2055 dshow_indev_deps="IBaseFilter"
2056 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2057 dv1394_indev_deps="dv1394 dv_demuxer"
2058 fbdev_indev_deps="linux_fb_h"
2059 iec61883_indev_deps="libiec61883"
2060 jack_indev_deps="jack_jack_h sem_timedwait"
2061 lavfi_indev_deps="avfilter"
2062 libcdio_indev_deps="libcdio"
2063 libdc1394_indev_deps="libdc1394"
2064 libv4l2_indev_deps="libv4l2"
2065 openal_indev_deps="openal"
2066 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2067 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2068 pulse_indev_deps="libpulse"
2069 sdl_outdev_deps="sdl"
2070 sndio_indev_deps="sndio_h"
2071 sndio_outdev_deps="sndio_h"
2072 v4l_indev_deps="linux_videodev_h"
2073 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2074 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2075 vfwcap_indev_extralibs="-lavicap32"
2076 x11grab_indev_deps="x11grab"
2077
2078 # protocols
2079 bluray_protocol_deps="libbluray"
2080 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2081 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2082 ffrtmpcrypt_protocol_select="tcp_protocol"
2083 ffrtmphttp_protocol_deps="!librtmp_protocol"
2084 ffrtmphttp_protocol_select="http_protocol"
2085 gopher_protocol_select="network"
2086 httpproxy_protocol_select="tcp_protocol"
2087 http_protocol_select="tcp_protocol"
2088 https_protocol_select="tls_protocol"
2089 librtmp_protocol_deps="librtmp"
2090 librtmpe_protocol_deps="librtmp"
2091 librtmps_protocol_deps="librtmp"
2092 librtmpt_protocol_deps="librtmp"
2093 librtmpte_protocol_deps="librtmp"
2094 mmsh_protocol_select="http_protocol"
2095 mmst_protocol_select="network"
2096 rtmp_protocol_deps="!librtmp_protocol"
2097 rtmp_protocol_select="tcp_protocol"
2098 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2099 rtmps_protocol_deps="!librtmp_protocol"
2100 rtmps_protocol_select="tls_protocol"
2101 rtmpt_protocol_select="ffrtmphttp_protocol"
2102 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2103 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2104 rtp_protocol_select="udp_protocol"
2105 sctp_protocol_deps="struct_sctp_event_subscribe"
2106 sctp_protocol_select="network"
2107 srtp_protocol_select="rtp_protocol"
2108 tcp_protocol_select="network"
2109 tls_protocol_deps_any="openssl gnutls"
2110 tls_protocol_select="tcp_protocol"
2111 udp_protocol_select="network"
2112
2113 # filters
2114 aconvert_filter_deps="swresample"
2115 amovie_filter_deps="avcodec avformat"
2116 aresample_filter_deps="swresample"
2117 ass_filter_deps="libass"
2118 asyncts_filter_deps="avresample"
2119 atempo_filter_deps="avcodec rdft"
2120 blackframe_filter_deps="gpl"
2121 boxblur_filter_deps="gpl"
2122 colormatrix_filter_deps="gpl"
2123 cropdetect_filter_deps="gpl"
2124 delogo_filter_deps="gpl"
2125 deshake_filter_deps="avcodec"
2126 deshake_filter_select="dsputil"
2127 drawtext_filter_deps="libfreetype"
2128 ebur128_filter_deps="gpl"
2129 flite_filter_deps="libflite"
2130 frei0r_filter_deps="frei0r dlopen"
2131 frei0r_filter_extralibs='$ldl'
2132 frei0r_src_filter_deps="frei0r dlopen"
2133 frei0r_src_filter_extralibs='$ldl'
2134 geq_filter_deps="gpl"
2135 histeq_filter_deps="gpl"
2136 hqdn3d_filter_deps="gpl"
2137 hue_filter_deps="gpl"
2138 interlace_filter_deps="gpl"
2139 kerndeint_filter_deps="gpl"
2140 movie_filter_deps="avcodec avformat"
2141 mp_filter_deps="gpl avcodec swscale inline_asm"
2142 mpdecimate_filter_deps="gpl avcodec"
2143 mptestsrc_filter_deps="gpl"
2144 negate_filter_deps="lut_filter"
2145 noise_filter_deps="gpl"
2146 resample_filter_deps="avresample"
2147 ocv_filter_deps="libopencv"
2148 pan_filter_deps="swresample"
2149 pp_filter_deps="gpl postproc"
2150 removelogo_filter_deps="avcodec avformat swscale"
2151 scale_filter_deps="swscale"
2152 smartblur_filter_deps="gpl swscale"
2153 showspectrum_filter_deps="avcodec rdft"
2154 stereo3d_filter_deps="gpl"
2155 subtitles_filter_deps="avformat avcodec libass"
2156 super2xsai_filter_deps="gpl"
2157 tinterlace_filter_deps="gpl"
2158 vidstabdetect_filter_deps="libvidstab"
2159 vidstabtransform_filter_deps="libvidstab"
2160 yadif_filter_deps="gpl"
2161 pixfmts_super2xsai_test_deps="super2xsai_filter"
2162 tinterlace_merge_test_deps="tinterlace_filter"
2163 tinterlace_pad_test_deps="tinterlace_filter"
2164
2165 # libraries
2166 avcodec_deps="avutil"
2167 avdevice_deps="avutil avcodec avformat"
2168 avfilter_deps="avutil"
2169 avformat_deps="avutil avcodec"
2170 avresample_deps="avutil"
2171 postproc_deps="avutil gpl"
2172 swscale_deps="avutil"
2173
2174 # programs
2175 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2176 ffmpeg_select="format_filter aformat_filter
2177                setpts_filter null_filter anull_filter"
2178 ffplay_deps="avcodec avformat swscale swresample sdl"
2179 ffplay_select="rdft crop_filter"
2180 ffprobe_deps="avcodec avformat"
2181 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2182 ffserver_extralibs='$ldl'
2183
2184 # documentation
2185 podpages_deps="perl"
2186 manpages_deps="perl pod2man"
2187 htmlpages_deps="texi2html"
2188 txtpages_deps="makeinfo"
2189 doc_deps_any="manpages htmlpages podpages txtpages"
2190
2191 # default parameters
2192
2193 logfile="config.log"
2194
2195 # installation paths
2196 prefix_default="/usr/local"
2197 bindir_default='${prefix}/bin'
2198 datadir_default='${prefix}/share/ffmpeg'
2199 incdir_default='${prefix}/include'
2200 libdir_default='${prefix}/lib'
2201 mandir_default='${prefix}/share/man'
2202 shlibdir_default="$libdir_default"
2203
2204 # toolchain
2205 ar_default="ar"
2206 cc_default="gcc"
2207 cxx_default="g++"
2208 host_cc_default="gcc"
2209 cp_f="cp -f"
2210 install="install"
2211 ln_s="ln -s -f"
2212 nm_default="nm -g"
2213 objformat="elf"
2214 pkg_config_default=pkg-config
2215 ranlib="ranlib"
2216 strip_default="strip"
2217 yasmexe_default="yasm"
2218
2219 nogas=":"
2220
2221 # machine
2222 arch_default=$(uname -m)
2223 cpu="generic"
2224
2225 # OS
2226 target_os_default=$(tolower $(uname -s))
2227 host_os=$target_os_default
2228
2229 # configurable options
2230 enable $PROGRAM_LIST
2231 enable $DOCUMENT_LIST
2232 enable $(filter_out avresample $LIBRARY_LIST)
2233 enable stripping
2234
2235 enable asm
2236 enable debug
2237 enable doc
2238 enable optimizations
2239 enable runtime_cpudetect
2240 enable safe_bitstream_reader
2241 enable static
2242 enable swscale_alpha
2243
2244 # By default, enable only those hwaccels that have no external dependencies.
2245 enable dxva2 vdpau
2246
2247 # build settings
2248 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2249 FFSERVERLDFLAGS=-Wl,-E
2250 LIBPREF="lib"
2251 LIBSUF=".a"
2252 FULLNAME='$(NAME)$(BUILDSUF)'
2253 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2254 SLIBPREF="lib"
2255 SLIBSUF=".so"
2256 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2257 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2258 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2259 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2260 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2261 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2262
2263 asflags_filter=echo
2264 cflags_filter=echo
2265 ldflags_filter=echo
2266
2267 AS_C='-c'
2268 AS_O='-o $@'
2269 CC_C='-c'
2270 CC_E='-E -o $@'
2271 CC_O='-o $@'
2272 CXX_C='-c'
2273 CXX_O='-o $@'
2274 LD_O='-o $@'
2275 LD_LIB='-l%'
2276 LD_PATH='-L'
2277 HOSTCC_C='-c'
2278 HOSTCC_O='-o $@'
2279 HOSTLD_O='-o $@'
2280
2281 host_cflags='-O3 -g'
2282 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2283 host_libs='-lm'
2284 host_cflags_filter=echo
2285 host_ldflags_filter=echo
2286
2287 target_path='$(CURDIR)'
2288
2289 # since the object filename is not given with the -MM flag, the compiler
2290 # is only able to print the basename, and we must add the path ourselves
2291 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2292 DEPFLAGS='-MM'
2293
2294 # find source path
2295 if test -f configure; then
2296     source_path=.
2297 else
2298     source_path=$(cd $(dirname "$0"); pwd)
2299     echo "$source_path" | grep -q '[[:blank:]]' &&
2300         die "Out of tree builds are impossible with whitespace in source path."
2301     test -e "$source_path/config.h" &&
2302         die "Out of tree builds are impossible with config.h in source dir."
2303 fi
2304
2305 for v in "$@"; do
2306     r=${v#*=}
2307     l=${v%"$r"}
2308     r=$(sh_quote "$r")
2309     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2310 done
2311
2312 find_things(){
2313     thing=$1
2314     pattern=$2
2315     file=$source_path/$3
2316     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2317 }
2318
2319 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2320 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2321 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2322 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2323 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2324 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2325 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2326 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2327 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2328 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2329 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2330
2331 ALL_COMPONENTS="
2332     $BSF_LIST
2333     $DECODER_LIST
2334     $DEMUXER_LIST
2335     $ENCODER_LIST
2336     $FILTER_LIST
2337     $HWACCEL_LIST
2338     $INDEV_LIST
2339     $MUXER_LIST
2340     $OUTDEV_LIST
2341     $PARSER_LIST
2342     $PROTOCOL_LIST
2343 "
2344
2345 for n in $COMPONENT_LIST; do
2346     v=$(toupper ${n%s})_LIST
2347     eval enable \$$v
2348     eval ${n}_if_any="\$$v"
2349 done
2350
2351 enable $ARCH_EXT_LIST
2352
2353 die_unknown(){
2354     echo "Unknown option \"$1\"."
2355     echo "See $0 --help for available options."
2356     exit 1
2357 }
2358
2359 print_3_columns() {
2360     cat | tr ' ' '\n' | sort | pr -r -3 -t
2361 }
2362
2363 show_list() {
2364     suffix=_$1
2365     shift
2366     echo $* | sed s/$suffix//g | print_3_columns
2367     exit 0
2368 }
2369
2370 rand_list(){
2371     IFS=', '
2372     set -- $*
2373     unset IFS
2374     for thing; do
2375         comp=${thing%:*}
2376         prob=${thing#$comp}
2377         prob=${prob#:}
2378         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2379         echo "prob ${prob:-0.5}"
2380         printf '%s\n' $comp
2381     done
2382 }
2383
2384 do_random(){
2385     action=$1
2386     shift
2387     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2388     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2389 }
2390
2391 for opt do
2392     optval="${opt#*=}"
2393     case "$opt" in
2394         --extra-ldflags=*)
2395             add_ldflags $optval
2396         ;;
2397         --extra-libs=*)
2398             add_extralibs $optval
2399         ;;
2400         --disable-devices)
2401             disable $INDEV_LIST $OUTDEV_LIST
2402         ;;
2403         --enable-debug=*)
2404             debuglevel="$optval"
2405         ;;
2406         --disable-programs)
2407             disable $PROGRAM_LIST
2408         ;;
2409         --disable-everything)
2410             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2411         ;;
2412         --disable-all)
2413             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2414             disable $LIBRARY_LIST $PROGRAM_LIST doc
2415         ;;
2416         --enable-random|--disable-random)
2417             action=${opt%%-random}
2418             do_random ${action#--} $COMPONENT_LIST
2419         ;;
2420         --enable-random=*|--disable-random=*)
2421             action=${opt%%-random=*}
2422             do_random ${action#--} $optval
2423         ;;
2424         --enable-*=*|--disable-*=*)
2425             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2426             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2427             eval list=\$$(toupper $thing)_LIST
2428             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2429             list=$(filter "$name" $list)
2430             [ "$list" = "" ] && warn "Option $opt did not match anything"
2431             $action $list
2432         ;;
2433         --enable-?*|--disable-?*)
2434             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2435             if is_in $option $COMPONENT_LIST; then
2436                 test $action = disable && action=unset
2437                 eval $action \$$(toupper ${option%s})_LIST
2438             elif is_in $option $CMDLINE_SELECT; then
2439                 $action $option
2440             else
2441                 die_unknown $opt
2442             fi
2443         ;;
2444         --list-*)
2445             NAME="${opt#--list-}"
2446             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2447             NAME=${NAME%s}
2448             eval show_list $NAME \$$(toupper $NAME)_LIST
2449         ;;
2450         --help|-h) show_help
2451         ;;
2452         --fatal-warnings) enable fatal_warnings
2453         ;;
2454         *)
2455             optname="${opt%%=*}"
2456             optname="${optname#--}"
2457             optname=$(echo "$optname" | sed 's/-/_/g')
2458             if is_in $optname $CMDLINE_SET; then
2459                 eval $optname='$optval'
2460             elif is_in $optname $CMDLINE_APPEND; then
2461                 append $optname "$optval"
2462             else
2463                 die_unknown $opt
2464             fi
2465         ;;
2466     esac
2467 done
2468
2469 disabled logging && logfile=/dev/null
2470
2471 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2472 set >> $logfile
2473
2474 test -n "$cross_prefix" && enable cross_compile
2475
2476 if enabled cross_compile; then
2477     test -n "$arch" && test -n "$target_os" ||
2478         die "Must specify target arch and OS when cross-compiling"
2479 fi
2480
2481 ar_default="${cross_prefix}${ar_default}"
2482 cc_default="${cross_prefix}${cc_default}"
2483 cxx_default="${cross_prefix}${cxx_default}"
2484 nm_default="${cross_prefix}${nm_default}"
2485 pkg_config_default="${cross_prefix}${pkg_config_default}"
2486 ranlib="${cross_prefix}${ranlib}"
2487 strip_default="${cross_prefix}${strip_default}"
2488
2489 sysinclude_default="${sysroot}/usr/include"
2490
2491 case "$toolchain" in
2492     clang-asan)
2493         cc_default="clang"
2494         add_cflags  -fsanitize=address
2495         add_ldflags -fsanitize=address
2496     ;;
2497     clang-tsan)
2498         cc_default="clang"
2499         add_cflags  -fsanitize=thread -pie
2500         add_ldflags -fsanitize=thread -pie
2501     ;;
2502     msvc)
2503         cc_default="c99wrap cl"
2504         ld_default="c99wrap link"
2505         nm_default="dumpbin -symbols"
2506         ar_default="lib"
2507         target_os_default="win32"
2508     ;;
2509     gcov)
2510         add_cflags  -fprofile-arcs -ftest-coverage
2511         add_ldflags -fprofile-arcs -ftest-coverage
2512     ;;
2513     ?*)
2514         die "Unknown toolchain $toolchain"
2515     ;;
2516 esac
2517
2518 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2519 enabled cross_compile || host_cc_default=$cc
2520 set_default host_cc
2521
2522 if ! $pkg_config --version >/dev/null 2>&1; then
2523     warn "$pkg_config not found, library detection may fail."
2524     pkg_config=false
2525 fi
2526
2527 exesuf() {
2528     case $1 in
2529         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2530     esac
2531 }
2532
2533 EXESUF=$(exesuf $target_os)
2534 HOSTEXESUF=$(exesuf $host_os)
2535
2536 # set temporary file name
2537 : ${TMPDIR:=$TEMPDIR}
2538 : ${TMPDIR:=$TMP}
2539 : ${TMPDIR:=/tmp}
2540
2541 if ! check_cmd mktemp -u XXXXXX; then
2542     # simple replacement for missing mktemp
2543     # NOT SAFE FOR GENERAL USE
2544     mktemp(){
2545         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2546     }
2547 fi
2548
2549 tmpfile(){
2550     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2551         (set -C; exec > $tmp) 2>/dev/null ||
2552         die "Unable to create temporary file in $TMPDIR."
2553     append TMPFILES $tmp
2554     eval $1=$tmp
2555 }
2556
2557 trap 'rm -f -- $TMPFILES' EXIT
2558
2559 tmpfile TMPASM .asm
2560 tmpfile TMPC   .c
2561 tmpfile TMPCPP .cpp
2562 tmpfile TMPE   $EXESUF
2563 tmpfile TMPH   .h
2564 tmpfile TMPO   .o
2565 tmpfile TMPS   .S
2566 tmpfile TMPSH  .sh
2567 tmpfile TMPV   .ver
2568
2569 unset -f mktemp
2570
2571 chmod +x $TMPE
2572
2573 # make sure we can execute files in $TMPDIR
2574 cat > $TMPSH 2>> $logfile <<EOF
2575 #! /bin/sh
2576 EOF
2577 chmod +x $TMPSH >> $logfile 2>&1
2578 if ! $TMPSH >> $logfile 2>&1; then
2579     cat <<EOF
2580 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2581 variable to another directory and make sure that it is not mounted noexec.
2582 EOF
2583     die "Sanity test failed."
2584 fi
2585
2586 ccc_flags(){
2587     for flag; do
2588         case $flag in
2589             -std=c99)           echo -c99                       ;;
2590             -mcpu=*)            echo -arch ${flag#*=}           ;;
2591             -mieee)             echo -ieee                      ;;
2592             -O*|-fast)          echo $flag                      ;;
2593             -fno-math-errno)    echo -assume nomath_errno       ;;
2594             -g)                 echo -g3                        ;;
2595             -Wall)              echo -msg_enable level2         ;;
2596             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2597             -Wl,*)              echo $flag                      ;;
2598             -f*|-W*)                                            ;;
2599             *)                  echo $flag                      ;;
2600         esac
2601    done
2602 }
2603
2604 msvc_flags(){
2605     for flag; do
2606         case $flag in
2607             -fomit-frame-pointer) echo -Oy ;;
2608             -g)                   echo -Z7 ;;
2609             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2610                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2611                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2612                                        -wd4554 \
2613                                        -wd4996 -wd4273 ;;
2614             -std=c99)             ;;
2615             -fno-math-errno)      ;;
2616             -fno-common)          ;;
2617             -fno-signed-zeros)    ;;
2618             -fPIC)                ;;
2619             -lz)                  echo zlib.lib ;;
2620             -lavifil32)           echo vfw32.lib ;;
2621             -lavicap32)           echo vfw32.lib user32.lib ;;
2622             -l*)                  echo ${flag#-l}.lib ;;
2623             *)                    echo $flag ;;
2624         esac
2625     done
2626 }
2627
2628 pgi_flags(){
2629     for flag; do
2630         case $flag in
2631             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2632             -fomit-frame-pointer) echo -Mnoframe ;;
2633             -g)                   echo -gopt ;;
2634             *)                    echo $flag ;;
2635         esac
2636     done
2637 }
2638
2639 suncc_flags(){
2640     for flag; do
2641         case $flag in
2642             -march=*|-mcpu=*)
2643                 case "${flag#*=}" in
2644                     native)                   echo -xtarget=native       ;;
2645                     v9|niagara)               echo -xarch=sparc          ;;
2646                     ultrasparc)               echo -xarch=sparcvis       ;;
2647                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2648                     i586|pentium)             echo -xchip=pentium        ;;
2649                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2650                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2651                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2652                     pentium4*)          echo -xtarget=pentium4           ;;
2653                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2654                     *-sse3)             echo -xarch=sse3                 ;;
2655                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2656                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2657                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2658                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2659                     bdver*)                   echo -xarch=avx            ;;
2660                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2661                     k8|opteron|athlon64|athlon-fx)
2662                                               echo -xarch=sse2a          ;;
2663                     athlon*)                  echo -xarch=pentium_proa   ;;
2664                 esac
2665                 ;;
2666             -std=c99)             echo -xc99              ;;
2667             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2668             -fPIC)                echo -KPIC -xcode=pic32 ;;
2669             -W*,*)                echo $flag              ;;
2670             -f*-*|-W*|-mimpure-text)                      ;;
2671             -shared)              echo -G                 ;;
2672             *)                    echo $flag              ;;
2673         esac
2674     done
2675 }
2676
2677 tms470_flags(){
2678     for flag; do
2679         case $flag in
2680             -march=*|-mcpu=*)
2681                 case "${flag#*=}" in
2682                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2683                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2684                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2685                     armv6*|arm11*)          echo -mv=6   ;;
2686                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2687                                             echo -mv=5e  ;;
2688                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2689                 esac
2690                 ;;
2691             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2692             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2693             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2694             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2695             -msoft-float)   echo --float_support=vfplib       ;;
2696             -O[0-3]|-mf=*)  echo $flag                        ;;
2697             -g)             echo -g -mn                       ;;
2698             -pds=*)         echo $flag                        ;;
2699             -D*|-I*)        echo $flag                        ;;
2700             --gcc|--abi=*)  echo $flag                        ;;
2701             -me)            echo $flag                        ;;
2702         esac
2703     done
2704 }
2705
2706 probe_cc(){
2707     pfx=$1
2708     _cc=$2
2709
2710     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2711     unset _ld_o _ldflags _ld_lib _ld_path
2712     unset _depflags _DEPCMD _DEPFLAGS
2713     _flags_filter=echo
2714
2715     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2716         _type=llvm_gcc
2717         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2718         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2719         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2720         _cflags_speed='-O3'
2721         _cflags_size='-Os'
2722     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2723         _type=gcc
2724         gcc_version=$($_cc --version | head -n1)
2725         gcc_basever=$($_cc -dumpversion)
2726         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2727         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2728         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2729         if ! $_cc -dumpversion | grep -q '^2\.'; then
2730             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2731         fi
2732         _cflags_speed='-O3'
2733         _cflags_size='-Os'
2734     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2735         _type=icc
2736         _ident=$($_cc --version | head -n1)
2737         _depflags='-MMD'
2738         _cflags_speed='-O3'
2739         _cflags_size='-Os'
2740         _cflags_noopt='-O1'
2741     elif $_cc -v 2>&1 | grep -q xlc; then
2742         _type=xlc
2743         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2744         _cflags_speed='-O5'
2745         _cflags_size='-O5 -qcompact'
2746     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2747         _type=ccc
2748         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2749         _DEPFLAGS='-M'
2750         _cflags_speed='-fast'
2751         _cflags_size='-O1'
2752         _flags_filter=ccc_flags
2753     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2754         test -d "$sysroot" || die "No valid sysroot specified."
2755         _type=armcc
2756         _ident=$($_cc --vsn | head -n1)
2757         armcc_conf="$PWD/armcc.conf"
2758         $_cc --arm_linux_configure                 \
2759              --arm_linux_config_file="$armcc_conf" \
2760              --configure_sysroot="$sysroot"        \
2761              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2762              die "Error creating armcc configuration file."
2763         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2764         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2765         as_default="${cross_prefix}gcc"
2766         _depflags='-MMD'
2767         _cflags_speed='-O3'
2768         _cflags_size='-Os'
2769     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2770         _type=tms470
2771         _ident=$($_cc -version | head -n1 | tr -s ' ')
2772         _flags='--gcc --abi=eabi -me'
2773         _cc_e='-ppl -fe=$@'
2774         _cc_o='-fe=$@'
2775         _depflags='-ppa -ppd=$(@:.o=.d)'
2776         _cflags_speed='-O3 -mf=5'
2777         _cflags_size='-O3 -mf=2'
2778         _flags_filter=tms470_flags
2779     elif $_cc -v 2>&1 | grep -q clang; then
2780         _type=clang
2781         _ident=$($_cc --version | head -n1)
2782         _depflags='-MMD'
2783         _cflags_speed='-O3'
2784         _cflags_size='-Os'
2785     elif $_cc -V 2>&1 | grep -q Sun; then
2786         _type=suncc
2787         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2788         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2789         _DEPFLAGS='-xM1 -xc99'
2790         _ldflags='-std=c99'
2791         _cflags_speed='-O5'
2792         _cflags_size='-O5 -xspace'
2793         _flags_filter=suncc_flags
2794     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2795         _type=pathscale
2796         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2797         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2798         _cflags_speed='-O2'
2799         _cflags_size='-Os'
2800         _flags_filter='filter_out -Wdisabled-optimization'
2801     elif $_cc -v 2>&1 | grep -q Open64; then
2802         _type=open64
2803         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2804         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2805         _cflags_speed='-O2'
2806         _cflags_size='-Os'
2807         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2808     elif $_cc -V 2>&1 | grep -q Portland; then
2809         _type=pgi
2810         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2811         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2812         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2813         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2814         _cflags_noopt="-O"
2815         _flags_filter=pgi_flags
2816     elif $_cc 2>&1 | grep -q Microsoft; then
2817         _type=msvc
2818         _ident=$($cc 2>&1 | head -n1)
2819         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2820         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2821         _cflags_speed="-O2"
2822         _cflags_size="-O1"
2823         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2824         if $_cc 2>&1 | grep -q Linker; then
2825             _ld_o='-out $@'
2826         else
2827             _ld_o='-Fe$@'
2828         fi
2829         _cc_o='-Fo $@'
2830         _cc_e='-P -Fi $@'
2831         _flags_filter=msvc_flags
2832         _ld_lib='lib%.a'
2833         _ld_path='-libpath:'
2834         _flags='-nologo'
2835         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2836         if [ $pfx = hostcc ]; then
2837             append _cflags -Dsnprintf=_snprintf
2838         fi
2839         disable stripping
2840     fi
2841
2842     eval ${pfx}_type=\$_type
2843     eval ${pfx}_ident=\$_ident
2844 }
2845
2846 set_ccvars(){
2847     eval ${1}_C=\${_cc_c-\${${1}_C}}
2848     eval ${1}_E=\${_cc_e-\${${1}_E}}
2849     eval ${1}_O=\${_cc_o-\${${1}_O}}
2850
2851     if [ -n "$_depflags" ]; then
2852         eval ${1}_DEPFLAGS=\$_depflags
2853     else
2854         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2855         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2856         eval DEP${1}FLAGS=\$_flags
2857     fi
2858 }
2859
2860 probe_cc cc "$cc"
2861 cflags_filter=$_flags_filter
2862 cflags_speed=$_cflags_speed
2863 cflags_size=$_cflags_size
2864 cflags_noopt=$_cflags_noopt
2865 add_cflags $_flags $_cflags
2866 cc_ldflags=$_ldflags
2867 set_ccvars CC
2868
2869 probe_cc hostcc "$host_cc"
2870 host_cflags_filter=$_flags_filter
2871 add_host_cflags  $_flags $_cflags
2872 set_ccvars HOSTCC
2873
2874 test -n "$cc_type" && enable $cc_type ||
2875     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2876
2877 : ${as_default:=$cc}
2878 : ${dep_cc_default:=$cc}
2879 : ${ld_default:=$cc}
2880 : ${host_ld_default:=$host_cc}
2881 set_default ar as dep_cc ld host_ld
2882
2883 probe_cc as "$as"
2884 asflags_filter=$_flags_filter
2885 add_asflags $_flags $_cflags
2886 set_ccvars AS
2887
2888 probe_cc ld "$ld"
2889 ldflags_filter=$_flags_filter
2890 add_ldflags $_flags $_ldflags
2891 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2892 LD_O=${_ld_o-$LD_O}
2893 LD_LIB=${_ld_lib-$LD_LIB}
2894 LD_PATH=${_ld_path-$LD_PATH}
2895
2896 probe_cc hostld "$host_ld"
2897 host_ldflags_filter=$_flags_filter
2898 add_host_ldflags $_flags $_ldflags
2899 HOSTLD_O=${_ld_o-$HOSTLD_O}
2900
2901 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2902     probe_cc depcc "$dep_cc"
2903     CCDEP=${_DEPCMD:-$DEPCMD}
2904     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2905     DEPCCFLAGS=$_flags
2906 fi
2907
2908 if $ar 2>&1 | grep -q Microsoft; then
2909     arflags="-nologo"
2910     ar_o='-out:$@'
2911 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2912     arflags="rq"
2913     ar_o='$@'
2914 else
2915     arflags="rc"
2916     ar_o='$@'
2917 fi
2918
2919 add_cflags $extra_cflags
2920 add_cxxflags $extra_cxxflags
2921 add_asflags $extra_cflags
2922
2923 if test -n "$sysroot"; then
2924     case "$cc_type" in
2925         gcc|llvm_gcc|clang)
2926             add_cppflags --sysroot="$sysroot"
2927             add_ldflags --sysroot="$sysroot"
2928         ;;
2929         tms470)
2930             add_cppflags -I"$sysinclude"
2931             add_ldflags  --sysroot="$sysroot"
2932         ;;
2933     esac
2934 fi
2935
2936 if test "$cpu" = host; then
2937     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2938
2939     case "$cc_type" in
2940         gcc|llvm_gcc)
2941             check_native(){
2942                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2943                 sed -n "/cc1.*$1=/{
2944                             s/.*$1=\\([^ ]*\\).*/\\1/
2945                             p
2946                             q
2947                         }" $TMPE
2948             }
2949             cpu=$(check_native -march || check_native -mcpu)
2950         ;;
2951     esac
2952
2953     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2954 fi
2955
2956 # Deal with common $arch aliases
2957 case "$arch" in
2958     aarch64|arm64)
2959         arch="aarch64"
2960     ;;
2961     arm*|iPad*)
2962         arch="arm"
2963     ;;
2964     mips*|IP*)
2965         arch="mips"
2966     ;;
2967     parisc*|hppa*)
2968         arch="parisc"
2969     ;;
2970     "Power Macintosh"|ppc*|powerpc*)
2971         arch="ppc"
2972     ;;
2973     s390|s390x)
2974         arch="s390"
2975     ;;
2976     sh4|sh)
2977         arch="sh4"
2978     ;;
2979     sun4u|sparc*)
2980         arch="sparc"
2981     ;;
2982     tilegx|tile-gx)
2983         arch="tilegx"
2984     ;;
2985     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2986         arch="x86"
2987     ;;
2988 esac
2989
2990 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2991 enable $arch
2992
2993 # Add processor-specific flags
2994 if enabled aarch64; then
2995
2996     case $cpu in
2997         armv*)
2998             cpuflags="-march=$cpu"
2999         ;;
3000         *)
3001             cpuflags="-mcpu=$cpu"
3002         ;;
3003     esac
3004
3005 elif enabled alpha; then
3006
3007     cpuflags="-mcpu=$cpu"
3008
3009 elif enabled arm; then
3010
3011     check_arm_arch() {
3012         check_cpp_condition stddef.h \
3013             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3014             $cpuflags
3015     }
3016
3017     probe_arm_arch() {
3018         if   check_arm_arch 4;        then echo armv4;
3019         elif check_arm_arch 4T;       then echo armv4t;
3020         elif check_arm_arch 5;        then echo armv5;
3021         elif check_arm_arch 5E;       then echo armv5e;
3022         elif check_arm_arch 5T;       then echo armv5t;
3023         elif check_arm_arch 5TE;      then echo armv5te;
3024         elif check_arm_arch 5TEJ;     then echo armv5te;
3025         elif check_arm_arch 6;        then echo armv6;
3026         elif check_arm_arch 6J;       then echo armv6j;
3027         elif check_arm_arch 6K;       then echo armv6k;
3028         elif check_arm_arch 6Z;       then echo armv6z;
3029         elif check_arm_arch 6ZK;      then echo armv6zk;
3030         elif check_arm_arch 6T2;      then echo armv6t2;
3031         elif check_arm_arch 7;        then echo armv7;
3032         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3033         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3034         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3035         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3036         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3037         fi
3038     }
3039
3040     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3041
3042     case $cpu in
3043         armv*)
3044             cpuflags="-march=$cpu"
3045             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3046         ;;
3047         *)
3048             cpuflags="-mcpu=$cpu"
3049             case $cpu in
3050                 cortex-a*)                               subarch=armv7a  ;;
3051                 cortex-r*)                               subarch=armv7r  ;;
3052                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3053                 arm11*)                                  subarch=armv6   ;;
3054                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3055                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3056                 *)                             subarch=$(probe_arm_arch) ;;
3057             esac
3058         ;;
3059     esac
3060
3061     case "$subarch" in
3062         armv5t*)    enable fast_clz                ;;
3063         armv[6-8]*) enable fast_clz fast_unaligned ;;
3064     esac
3065
3066 elif enabled avr32; then
3067
3068     case $cpu in
3069         ap7[02]0[0-2])
3070             subarch="avr32_ap"
3071             cpuflags="-mpart=$cpu"
3072         ;;
3073         ap)
3074             subarch="avr32_ap"
3075             cpuflags="-march=$cpu"
3076         ;;
3077         uc3[ab]*)
3078             subarch="avr32_uc"
3079             cpuflags="-mcpu=$cpu"
3080         ;;
3081         uc)
3082             subarch="avr32_uc"
3083             cpuflags="-march=$cpu"
3084         ;;
3085     esac
3086
3087 elif enabled bfin; then
3088
3089     cpuflags="-mcpu=$cpu"
3090
3091 elif enabled mips; then
3092
3093     cpuflags="-march=$cpu"
3094
3095     case $cpu in
3096         24kc)
3097             disable mipsfpu
3098             disable mipsdspr1
3099             disable mipsdspr2
3100         ;;
3101         24kf*)
3102             disable mipsdspr1
3103             disable mipsdspr2
3104         ;;
3105         24kec|34kc|1004kc)
3106             disable mipsfpu
3107             disable mipsdspr2
3108         ;;
3109         24kef*|34kf*|1004kf*)
3110             disable mipsdspr2
3111         ;;
3112         74kc)
3113             disable mipsfpu
3114         ;;
3115     esac
3116
3117 elif enabled ppc; then
3118
3119     case $(tolower $cpu) in
3120         601|ppc601|powerpc601)
3121             cpuflags="-mcpu=601"
3122             disable altivec
3123         ;;
3124         603*|ppc603*|powerpc603*)
3125             cpuflags="-mcpu=603"
3126             disable altivec
3127         ;;
3128         604*|ppc604*|powerpc604*)
3129             cpuflags="-mcpu=604"
3130             disable altivec
3131         ;;
3132         g3|75*|ppc75*|powerpc75*)
3133             cpuflags="-mcpu=750"
3134             disable altivec
3135         ;;
3136         g4|745*|ppc745*|powerpc745*)
3137             cpuflags="-mcpu=7450"
3138         ;;
3139         74*|ppc74*|powerpc74*)
3140             cpuflags="-mcpu=7400"
3141         ;;
3142         g5|970|ppc970|powerpc970)
3143             cpuflags="-mcpu=970"
3144         ;;
3145         power[3-7]*)
3146             cpuflags="-mcpu=$cpu"
3147         ;;
3148         cell)
3149             cpuflags="-mcpu=cell"
3150             enable ldbrx
3151         ;;
3152         e500mc)
3153             cpuflags="-mcpu=e500mc"
3154             disable altivec
3155         ;;
3156         e500v2)
3157             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3158             disable altivec
3159         ;;
3160         e500)
3161             cpuflags="-mcpu=8540 -mhard-float"
3162             disable altivec
3163         ;;
3164     esac
3165
3166 elif enabled sparc; then
3167
3168     case $cpu in
3169         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3170             cpuflags="-mcpu=$cpu"
3171             disable vis
3172         ;;
3173         ultrasparc*|niagara[234])
3174             cpuflags="-mcpu=$cpu"
3175         ;;
3176     esac
3177
3178 elif enabled x86; then
3179
3180     case $cpu in
3181         i[345]86|pentium)
3182             cpuflags="-march=$cpu"
3183             disable mmx
3184         ;;
3185         # targets that do NOT support conditional mov (cmov)
3186         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3187             cpuflags="-march=$cpu"
3188             disable cmov
3189         ;;
3190         # targets that do support conditional mov (cmov)
3191         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3192             cpuflags="-march=$cpu"
3193             enable cmov
3194             enable fast_cmov
3195         ;;
3196         # targets that do support conditional mov but on which it's slow
3197         pentium4|pentium4m|prescott|nocona)
3198             cpuflags="-march=$cpu"
3199             enable cmov
3200             disable fast_cmov
3201         ;;
3202     esac
3203
3204 fi
3205
3206 if [ "$cpu" != generic ]; then
3207     add_cflags  $cpuflags
3208     add_asflags $cpuflags
3209 fi
3210
3211 # compiler sanity check
3212 check_exec <<EOF
3213 int main(void){ return 0; }
3214 EOF
3215 if test "$?" != 0; then
3216     echo "$cc is unable to create an executable file."
3217     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3218         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3219         echo "Only do this if you know what cross compiling means."
3220     fi
3221     die "C compiler test failed."
3222 fi
3223
3224 add_cppflags -D_ISOC99_SOURCE
3225 add_cxxflags -D__STDC_CONSTANT_MACROS
3226 check_cflags -std=c99
3227 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3228 #include <stdlib.h>
3229 EOF
3230 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3231 #include <stdlib.h>
3232 EOF
3233
3234 check_host_cflags -std=c99
3235 check_host_cflags -Wall
3236
3237 check_64bit(){
3238     arch32=$1
3239     arch64=$2
3240     expr=$3
3241     check_code cc "" "int test[2*($expr) - 1]" &&
3242         subarch=$arch64 || subarch=$arch32
3243 }
3244
3245 case "$arch" in
3246     aarch64|alpha|ia64)
3247         spic=$shared
3248     ;;
3249     mips)
3250         check_64bit mips mips64 '_MIPS_SIM > 1'
3251         spic=$shared
3252     ;;
3253     parisc)
3254         check_64bit parisc parisc64 'sizeof(void *) > 4'
3255         spic=$shared
3256     ;;
3257     ppc)
3258         check_64bit ppc ppc64 'sizeof(void *) > 4'
3259         spic=$shared
3260     ;;
3261     sparc)
3262         check_64bit sparc sparc64 'sizeof(void *) > 4'
3263         spic=$shared
3264     ;;
3265     x86)
3266         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3267         if test "$subarch" = "x86_64"; then
3268             spic=$shared
3269         fi
3270     ;;
3271     ppc)
3272         check_cc <<EOF && subarch="ppc64"
3273         int test[(int)sizeof(char*) - 7];
3274 EOF
3275     ;;
3276 esac
3277
3278 enable $subarch
3279 enabled spic && enable pic
3280
3281 # OS specific
3282 case $target_os in
3283     haiku)
3284         prefix_default="/boot/common"
3285         network_extralibs="-lnetwork"
3286         host_libs=
3287         ;;
3288     sunos)
3289         FFSERVERLDFLAGS=""
3290         SHFLAGS='-shared -Wl,-h,$$(@F)'
3291         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3292         network_extralibs="-lsocket -lnsl"
3293         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3294         # When using suncc to build, the Solaris linker will mark
3295         # an executable with each instruction set encountered by
3296         # the Solaris assembler.  As our libraries contain their own
3297         # guards for processor-specific code, instead suppress
3298         # generation of the HWCAPS ELF section on Solaris x86 only.
3299         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3300         nm_default='nm -P -g'
3301         ;;
3302     netbsd)
3303         disable symver
3304         oss_indev_extralibs="-lossaudio"
3305         oss_outdev_extralibs="-lossaudio"
3306         enabled gcc || check_ldflags -Wl,-zmuldefs
3307         ;;
3308     openbsd|bitrig)
3309         disable symver
3310         SHFLAGS='-shared'
3311         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3312         SLIB_INSTALL_LINKS=
3313         oss_indev_extralibs="-lossaudio"
3314         oss_outdev_extralibs="-lossaudio"
3315         ;;
3316     dragonfly)
3317         disable symver
3318         ;;
3319     freebsd)
3320         ;;
3321     bsd/os)
3322         add_extralibs -lpoll -lgnugetopt
3323         strip="strip -d"
3324         ;;
3325     darwin)
3326         gas="gas-preprocessor.pl $cc"
3327         enabled ppc && add_asflags -force_cpusubtype_ALL
3328         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3329         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3330         strip="${strip} -x"
3331         add_ldflags -Wl,-dynamic,-search_paths_first
3332         SLIBSUF=".dylib"
3333         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3334         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3335         FFSERVERLDFLAGS=-Wl,-bind_at_load
3336         objformat="macho"
3337         enabled x86_64 && objformat="macho64"
3338         enabled_any pic shared ||
3339             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3340         ;;
3341     mingw32*)
3342         if test $target_os = "mingw32ce"; then
3343             disable network
3344         else
3345             target_os=mingw32
3346         fi
3347         LIBTARGET=i386
3348         if enabled x86_64; then
3349             LIBTARGET="i386:x86-64"
3350         elif enabled arm; then
3351             LIBTARGET=arm-wince
3352         fi
3353         shlibdir_default="$bindir_default"
3354         SLIBPREF=""
3355         SLIBSUF=".dll"
3356         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3357         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3358         dlltool="${cross_prefix}dlltool"
3359         if check_cmd lib.exe -list; then
3360             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3361             if enabled x86_64; then
3362                 LIBTARGET=x64
3363             fi
3364         elif check_cmd $dlltool --version; then
3365             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3366         fi
3367         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3368         SLIB_INSTALL_LINKS=
3369         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3370         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3371         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3372         objformat="win32"
3373         ranlib=:
3374         enable dos_paths
3375         ;;
3376     win32|win64)
3377         if enabled shared; then
3378             # Link to the import library instead of the normal static library
3379             # for shared libs.
3380             LD_LIB='%.lib'
3381             # Cannot build shared and static libraries at the same time with
3382             # MSVC.
3383             disable static
3384         fi
3385         shlibdir_default="$bindir_default"
3386         SLIBPREF=""
3387         SLIBSUF=".dll"
3388         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3389         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3390         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3391         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3392         SLIB_INSTALL_LINKS=
3393         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3394         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3395         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3396         objformat="win32"
3397         ranlib=:
3398         enable dos_paths
3399         ;;
3400     cygwin*)
3401         target_os=cygwin
3402         shlibdir_default="$bindir_default"
3403         SLIBPREF="cyg"
3404         SLIBSUF=".dll"
3405         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3406         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3407         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3408         SLIB_INSTALL_LINKS=
3409         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3410         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3411         objformat="win32"
3412         enable dos_paths
3413         ;;
3414     *-dos|freedos|opendos)
3415         network_extralibs="-lsocket"
3416         objformat="coff"
3417         enable dos_paths
3418         add_cppflags -U__STRICT_ANSI__
3419         ;;
3420     linux)
3421         enable dv1394
3422         ;;
3423     irix*)
3424         target_os=irix
3425         ranlib="echo ignoring ranlib"
3426         ;;
3427     os/2*)
3428         strip="lxlite -CS"
3429         ln_s="cp -f"
3430         objformat="aout"
3431         add_cppflags -D_GNU_SOURCE
3432         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3433         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3434         FFSERVERLDFLAGS=""
3435         LIBSUF="_s.a"
3436         SLIBPREF=""
3437         SLIBSUF=".dll"
3438         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3439         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3440         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3441             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3442             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3443             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3444             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3445             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3446         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3447             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3448         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3449         enable dos_paths
3450         enable_weak os2threads
3451         ;;
3452     gnu/kfreebsd)
3453         add_cppflags -D_BSD_SOURCE
3454         ;;
3455     gnu)
3456         ;;
3457     qnx)
3458         add_cppflags -D_QNX_SOURCE
3459         network_extralibs="-lsocket"
3460         ;;
3461     symbian)
3462         SLIBSUF=".dll"
3463         enable dos_paths
3464         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3465         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3466         add_ldflags -Wl,--target1-abs,--no-undefined \
3467                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3468                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3469         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3470                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3471                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3472         ;;
3473     osf1)
3474         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3475         FFSERVERLDFLAGS=
3476         ;;
3477     minix)
3478         ;;
3479     plan9)
3480         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3481                      -D_REENTRANT_SOURCE        \
3482                      -D_RESEARCH_SOURCE         \
3483                      -DFD_SETSIZE=96            \
3484                      -DHAVE_SOCK_OPTS
3485         add_compat strtod.o strtod=avpriv_strtod
3486         network_extralibs='-lbsd'
3487         exeobjs=compat/plan9/main.o
3488         disable ffserver
3489         cp_f='cp'
3490         ;;
3491     none)
3492         ;;
3493     *)
3494         die "Unknown OS '$target_os'."
3495         ;;
3496 esac
3497
3498 # determine libc flavour
3499
3500 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3501 if check_cpp_condition features.h "defined __UCLIBC__"; then
3502     libc_type=uclibc
3503     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3504 elif check_cpp_condition features.h "defined __GLIBC__"; then
3505     libc_type=glibc
3506     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3507 # MinGW headers can be installed on Cygwin, so check for newlib first.
3508 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3509     libc_type=newlib
3510     add_cppflags -U__STRICT_ANSI__
3511 elif check_header _mingw.h; then
3512     libc_type=mingw
3513     check_cpp_condition _mingw.h \
3514         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3515             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3516         die "ERROR: MinGW runtime version must be >= 3.15."
3517     add_cppflags -U__STRICT_ANSI__
3518     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3519             __MINGW64_VERSION_MAJOR < 3"; then
3520         add_compat msvcrt/snprintf.o
3521         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3522     fi
3523 elif check_func_headers stdlib.h _get_doserrno; then
3524     libc_type=msvcrt
3525     add_compat strtod.o strtod=avpriv_strtod
3526     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3527                                  _snprintf=avpriv_snprintf  \
3528                                  vsnprintf=avpriv_vsnprintf
3529 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3530     libc_type=klibc
3531 fi
3532
3533 test -n "$libc_type" && enable $libc_type
3534
3535 # hacks for compiler/libc/os combinations
3536
3537 if enabled_all tms470 glibc; then
3538     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3539     add_cppflags -D__USER_LABEL_PREFIX__=
3540     add_cppflags -D__builtin_memset=memset
3541     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3542     add_cflags   -pds=48    # incompatible redefinition of macro
3543 fi
3544
3545 if enabled_all ccc glibc; then
3546     add_ldflags -Wl,-z,now  # calls to libots crash without this
3547 fi
3548
3549 esc(){
3550     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3551 }
3552
3553 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3554
3555 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3556
3557 set_default $PATHS_LIST
3558 set_default nm
3559
3560 # we need to build at least one lib type
3561 if ! enabled_any static shared; then
3562     cat <<EOF
3563 At least one library type must be built.
3564 Specify --enable-static to build the static libraries or --enable-shared to
3565 build the shared libraries as well. To only build the shared libraries specify
3566 --disable-static in addition to --enable-shared.
3567 EOF
3568     exit 1;
3569 fi
3570
3571 die_license_disabled() {
3572     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3573 }
3574
3575 die_license_disabled_gpl() {
3576     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3577 }
3578
3579 die_license_disabled gpl libcdio
3580 die_license_disabled gpl libutvideo
3581 die_license_disabled gpl libvidstab
3582 die_license_disabled gpl libx264
3583 die_license_disabled gpl libxavs
3584 die_license_disabled gpl libxvid
3585 die_license_disabled gpl x11grab
3586
3587 die_license_disabled nonfree libaacplus
3588 die_license_disabled nonfree libfaac
3589 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3590 enabled gpl && die_license_disabled_gpl nonfree openssl
3591
3592 die_license_disabled version3 libopencore_amrnb
3593 die_license_disabled version3 libopencore_amrwb
3594 die_license_disabled version3 libvo_aacenc
3595 die_license_disabled version3 libvo_amrwbenc
3596
3597 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3598
3599 disabled optimizations || check_cflags -fomit-frame-pointer
3600
3601 enable_pic() {
3602     enable pic
3603     add_cppflags -DPIC
3604     add_cflags   -fPIC
3605     add_asflags  -fPIC
3606 }
3607
3608 enabled pic && enable_pic
3609
3610 check_cc <<EOF || die "Symbol mangling check failed."
3611 int ff_extern;
3612 EOF
3613 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3614 extern_prefix=${sym%%ff_extern*}
3615
3616 check_cc <<EOF && enable_weak inline_asm
3617 void foo(void) { __asm__ volatile ("" ::); }
3618 EOF
3619
3620 _restrict=
3621 for restrict_keyword in restrict __restrict__ __restrict; do
3622     check_cc <<EOF && _restrict=$restrict_keyword && break
3623 void foo(char * $restrict_keyword p);
3624 EOF
3625 done
3626
3627 check_cc <<EOF && enable attribute_packed
3628 struct { int x; } __attribute__((packed)) x;
3629 EOF
3630
3631 check_cc <<EOF && enable attribute_may_alias
3632 union { int x; } __attribute__((may_alias)) x;
3633 EOF
3634
3635 check_cc <<EOF || die "endian test failed"
3636 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3637 EOF
3638 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3639
3640 if enabled alpha; then
3641
3642     check_cflags -mieee
3643
3644 elif enabled arm; then
3645
3646     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3647 float func(float a, float b){ return a+b; }
3648 EOF
3649
3650     enabled thumb && check_cflags -mthumb || check_cflags -marm
3651     nogas=die
3652
3653     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3654         enable vfp_args
3655     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3656         case "${cross_prefix:-$cc}" in
3657             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3658             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3659 __asm__ (".eabi_attribute 28, 1");
3660 int main(void) { return 0; }
3661 EOF
3662         esac
3663         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3664     fi
3665
3666     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3667     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3668     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3669     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3670     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3671     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3672
3673     [ $target_os = linux ] ||
3674         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3675             $ARCH_EXT_LIST_ARM
3676
3677     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3678     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3679
3680     enabled_all armv6t2 shared !pic && enable_pic
3681
3682 elif enabled mips; then
3683
3684     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3685     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3686      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3687     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3688      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3689     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3690      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3691     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3692      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3693
3694 elif enabled parisc; then
3695
3696     if enabled gcc; then
3697         case $($cc -dumpversion) in
3698             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3699         esac
3700     fi
3701
3702 elif enabled ppc; then
3703
3704     enable local_aligned_8 local_aligned_16
3705
3706     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3707     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3708     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3709     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3710
3711     # AltiVec flags: The FSF version of GCC differs from the Apple version
3712     if enabled altivec; then
3713         nogas=warn
3714         check_cflags -maltivec -mabi=altivec &&
3715         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3716         check_cflags -faltivec
3717
3718         # check if our compiler supports Motorola AltiVec C API
3719         check_cc <<EOF || disable altivec
3720 $inc_altivec_h
3721 int main(void) {
3722     vector signed int v1 = (vector signed int) { 0 };
3723     vector signed int v2 = (vector signed int) { 1 };
3724     v1 = vec_add(v1, v2);
3725     return 0;
3726 }
3727 EOF
3728
3729         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3730     fi
3731
3732 elif enabled sparc; then
3733
3734     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3735
3736 elif enabled x86; then
3737
3738     check_builtin rdtsc    intrin.h   "__rdtsc()"
3739     check_builtin mm_empty mmintrin.h "_mm_empty()"
3740
3741     enable local_aligned_8 local_aligned_16
3742
3743     # check whether EBP is available on x86
3744     # As 'i' is stored on the stack, this program will crash
3745     # if the base pointer is used to access it because the
3746     # base pointer is cleared in the inline assembly code.
3747     check_exec_crash <<EOF && enable ebp_available
3748 volatile int i=0;
3749 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3750 return i;
3751 EOF
3752
3753     # check whether EBX is available on x86
3754     check_inline_asm ebx_available '""::"b"(0)' &&
3755         check_inline_asm ebx_available '"":::"%ebx"'
3756
3757     # check whether xmm clobbers are supported
3758     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3759
3760     # check whether binutils is new enough to compile SSSE3/MMXEXT
3761     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3762     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3763
3764     if ! disabled_any asm mmx yasm; then
3765         if check_cmd $yasmexe --version; then
3766             enabled x86_64 && yasm_extra="-m amd64"
3767             yasm_debug="-g dwarf2"
3768         elif check_cmd nasm -v; then
3769             yasmexe=nasm
3770             yasm_debug="-g -F dwarf"
3771             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3772         fi
3773
3774         YASMFLAGS="-f $objformat $yasm_extra"
3775         enabled pic               && append YASMFLAGS "-DPIC"
3776         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3777         case "$objformat" in
3778             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3779         esac
3780
3781         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3782             die "yasm not found, use --disable-yasm for a crippled build"
3783         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3784         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3785         check_yasm "CPU amdnop" && enable cpunop
3786     fi
3787
3788     case "$cpu" in
3789         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3790             disable fast_clz
3791         ;;
3792     esac
3793
3794 fi
3795
3796 if enabled asm; then
3797     as=${gas:=$as}
3798     check_as <<EOF && enable gnu_as || \
3799         $nogas "GNU assembler not found, install gas-preprocessor"
3800 .macro m n
3801 \n: .int 0
3802 .endm
3803 m x
3804 EOF
3805 fi
3806
3807 check_ldflags -Wl,--as-needed
3808
3809 if check_func dlopen; then
3810     ldl=
3811 elif check_func dlopen -ldl; then
3812     ldl=-ldl
3813 fi
3814
3815 if ! disabled network; then
3816     check_type "sys/types.h sys/socket.h" socklen_t
3817     check_type netdb.h "struct addrinfo"
3818     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3819     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3820     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3821     check_type netinet/in.h "struct sockaddr_in6"
3822     check_type poll.h "struct pollfd"
3823     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3824     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3825     check_type netinet/sctp.h "struct sctp_event_subscribe"
3826     check_func getaddrinfo $network_extralibs
3827     check_func getservbyport $network_extralibs
3828     # Prefer arpa/inet.h over winsock2
3829     if check_header arpa/inet.h ; then
3830         check_func closesocket
3831     elif check_header winsock2.h ; then
3832         check_func_headers winsock2.h closesocket -lws2 &&
3833             network_extralibs="-lws2" ||
3834         { check_func_headers winsock2.h closesocket -lws2_32 &&
3835             network_extralibs="-lws2_32"; }
3836         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3837         check_type ws2tcpip.h socklen_t
3838         check_type ws2tcpip.h "struct addrinfo"
3839         check_type ws2tcpip.h "struct group_source_req"
3840         check_type ws2tcpip.h "struct ip_mreq_source"
3841         check_type ws2tcpip.h "struct ipv6_mreq"
3842         check_type winsock2.h "struct pollfd"
3843         check_type ws2tcpip.h "struct sockaddr_in6"
3844         check_type ws2tcpip.h "struct sockaddr_storage"
3845         check_struct winsock2.h "struct sockaddr" sa_len
3846     else
3847         disable network
3848     fi
3849 fi
3850
3851 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3852 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3853
3854 check_func  access
3855 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3856 check_func  fcntl
3857 check_func  fork
3858 check_func  gethrtime
3859 check_func  getopt
3860 check_func  getrusage
3861 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3862 check_func  gettimeofday
3863 check_func  inet_aton $network_extralibs
3864 check_func  isatty
3865 check_func  localtime_r
3866 check_func  ${malloc_prefix}memalign            && enable memalign
3867 check_func  mkstemp
3868 check_func  mmap
3869 check_func  mprotect
3870 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3871 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3872 check_func  setrlimit
3873 check_func  strerror_r
3874 check_func  sched_getaffinity
3875 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3876 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3877 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3878 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3879 check_func  sysconf
3880 check_func  sysctl
3881 check_func  usleep
3882 check_func_headers conio.h kbhit
3883 check_func_headers windows.h PeekNamedPipe
3884 check_func_headers io.h setmode
3885 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3886 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3887 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3888 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3889 check_func_headers windows.h GetProcessAffinityMask
3890 check_func_headers windows.h GetProcessTimes
3891 check_func_headers windows.h GetSystemTimeAsFileTime
3892 check_func_headers windows.h MapViewOfFile
3893 check_func_headers windows.h SetConsoleTextAttribute
3894 check_func_headers windows.h Sleep
3895 check_func_headers windows.h VirtualAlloc
3896 check_func_headers glob.h glob
3897
3898 check_header cl/cl.h
3899 check_header direct.h
3900 check_header dlfcn.h
3901 check_header dxva.h
3902 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3903 check_header io.h
3904 check_header libcrystalhd/libcrystalhd_if.h
3905 check_header malloc.h
3906 check_header poll.h
3907 check_header sys/mman.h
3908 check_header sys/param.h
3909 check_header sys/resource.h
3910 check_header sys/select.h
3911 check_header sys/time.h
3912 check_header termios.h
3913 check_header unistd.h
3914 check_header vdpau/vdpau.h
3915 check_header vdpau/vdpau_x11.h
3916 check_header VideoDecodeAcceleration/VDADecoder.h
3917 check_header windows.h
3918 check_header X11/extensions/XvMClib.h
3919 check_header asm/types.h
3920
3921 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3922 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3923
3924 if ! disabled w32threads && ! enabled pthreads; then
3925     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3926 fi
3927
3928 # check for some common methods of building with pthread support
3929 # do this before the optional library checks as some of them require pthreads
3930 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3931     enable pthreads
3932     if check_func pthread_create; then
3933         :
3934     elif check_func pthread_create -pthread; then
3935         add_cflags -pthread
3936         add_extralibs -pthread
3937     elif check_func pthread_create -pthreads; then
3938         add_cflags -pthreads
3939         add_extralibs -pthreads
3940     elif check_func pthread_create -lpthreadGC2; then
3941         add_extralibs -lpthreadGC2
3942     elif ! check_lib pthread.h pthread_create -lpthread; then
3943         disable pthreads
3944     fi
3945 fi
3946
3947 for thread in $THREADS_LIST; do
3948     if enabled $thread; then
3949         test -n "$thread_type" &&
3950             die "ERROR: Only one thread type must be selected." ||
3951             thread_type="$thread"
3952     fi
3953 done
3954
3955 if enabled pthreads; then
3956   check_func pthread_cancel
3957 fi
3958
3959 enabled sync_val_compare_and_swap && enable atomics_gcc
3960 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
3961 enabled MemoryBarrier && enable atomics_win32
3962
3963 check_lib math.h sin -lm && LIBM="-lm"
3964 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3965 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3966
3967 atan2f_args=2
3968 ldexpf_args=2
3969 powf_args=2
3970
3971 for func in $MATH_FUNCS; do
3972     eval check_mathfunc $func \${${func}_args:-1}
3973 done
3974
3975 # these are off by default, so fail if requested and not available
3976 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
3977                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
3978                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
3979 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3980 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3981 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3982 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3983 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3984 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3985 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3986 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3987                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3988                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3989 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3990 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3991 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3992 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"
3993 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3994 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3995 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3996                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3997                         done || die "ERROR: libgsm not found"; }
3998 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3999 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4000 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4001 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4002 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4003 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4004 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4005 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4006                          check_lib openjpeg.h opj_version -lopenjpeg ||
4007                          die "ERROR: libopenjpeg not found"; }
4008 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4009 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4010 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4011 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4012 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4013 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4014 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4015 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4016 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4017     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4018     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4019 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4020 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4021                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4022                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4023 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4024 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4025 enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4026 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4027 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4028 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4029 enabled libvpx     && {
4030     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4031                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4032     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 ||
4033                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4034     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4035     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4036 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4037                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4038                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4039 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4040 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4041 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4042                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4043                         die "ERROR: openal not found"; } &&
4044                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4045                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4046 enabled opencl     && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4047                         check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4048                         die "ERROR: opencl not found"; } &&
4049                       { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4050                         check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4051                         die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4052 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4053                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4054                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4055                         die "ERROR: openssl not found"; }
4056
4057 if enabled gnutls; then
4058     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4059     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4060 fi
4061
4062 # libdc1394 check
4063 if enabled libdc1394; then
4064     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4065         enable libdc1394_2; } ||
4066     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4067         enable libdc1394_1; } ||
4068     die "ERROR: No version of libdc1394 found "
4069 fi
4070
4071 SDL_CONFIG="${cross_prefix}sdl-config"
4072 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4073     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4074     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4075     enable sdl
4076 else
4077   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4078     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4079     sdl_libs=$("${SDL_CONFIG}" --libs)
4080     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4081     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4082     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4083     enable sdl
4084   fi
4085 fi
4086 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4087
4088 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4089 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4090 perl --version > /dev/null 2>&1 && enable perl || disable perl
4091 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4092 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4093
4094 check_header linux/fb.h
4095 check_header linux/videodev.h
4096 check_header linux/videodev2.h
4097 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4098
4099 check_header sys/videoio.h
4100
4101 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4102 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4103 # w32api 3.12 had it defined wrong
4104 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4105
4106 check_type "dshow.h" IBaseFilter
4107
4108 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4109 { check_header dev/bktr/ioctl_meteor.h &&
4110   check_header dev/bktr/ioctl_bt848.h; } ||
4111 { check_header machine/ioctl_meteor.h &&
4112   check_header machine/ioctl_bt848.h; } ||
4113 { check_header dev/video/meteor/ioctl_meteor.h &&
4114   check_header dev/video/bktr/ioctl_bt848.h; } ||
4115 check_header dev/ic/bt8xx.h
4116
4117 check_header sndio.h
4118 if check_struct sys/soundcard.h audio_buf_info bytes; then
4119     enable_safe sys/soundcard.h
4120 else
4121     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4122     #include <sys/soundcard.h>
4123     audio_buf_info abc;
4124 EOF
4125 fi
4126 check_header soundcard.h
4127
4128 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4129
4130 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4131     check_func jack_port_get_latency_range -ljack
4132
4133 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4134
4135 if enabled libcdio; then
4136     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
4137 fi
4138
4139 enabled x11grab                                           &&
4140 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4141 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4142 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4143
4144 if ! disabled vaapi; then
4145     check_lib va/va.h vaInitialize -lva && {
4146         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4147         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4148     } || disable vaapi
4149 fi
4150
4151 enabled vdpau &&
4152     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4153     disable vdpau
4154
4155 # Funny iconv installations are not unusual, so check it after all flags have been set
4156 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4157
4158 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4159 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"
4160
4161 # add some useful compiler flags if supported
4162 check_cflags -Wdeclaration-after-statement
4163 check_cflags -Wall
4164 check_cflags -Wno-parentheses
4165 check_cflags -Wno-switch
4166 check_cflags -Wno-format-zero-length
4167 check_cflags -Wdisabled-optimization
4168 check_cflags -Wpointer-arith
4169 check_cflags -Wredundant-decls
4170 check_cflags -Wno-pointer-sign
4171 check_cflags -Wwrite-strings
4172 check_cflags -Wtype-limits
4173 check_cflags -Wundef
4174 check_cflags -Wmissing-prototypes
4175 check_cflags -Wno-pointer-to-int-cast
4176 check_cflags -Wstrict-prototypes
4177 enabled extra_warnings && check_cflags -Winline
4178
4179 # add some linker flags
4180 check_ldflags -Wl,--warn-common
4181 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4182 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4183
4184 enabled xmm_clobber_test &&
4185     check_ldflags -Wl,--wrap,avcodec_open2              \
4186                   -Wl,--wrap,avcodec_decode_audio4      \
4187                   -Wl,--wrap,avcodec_decode_video2      \
4188                   -Wl,--wrap,avcodec_decode_subtitle2   \
4189                   -Wl,--wrap,avcodec_encode_audio2      \
4190                   -Wl,--wrap,avcodec_encode_video       \
4191                   -Wl,--wrap,avcodec_encode_subtitle    \
4192                   -Wl,--wrap,sws_scale ||
4193     disable xmm_clobber_test
4194
4195 echo "X{};" > $TMPV
4196 if test_ldflags -Wl,--version-script,$TMPV; then
4197     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4198     check_cc <<EOF && enable symver_asm_label
4199 void ff_foo(void) __asm__ ("av_foo@VERSION");
4200 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4201 EOF
4202     check_cc <<EOF && enable symver_gnu_asm
4203 __asm__(".symver ff_foo,av_foo@VERSION");
4204 void ff_foo(void) {}
4205 EOF
4206 fi
4207
4208 if [ -z "$optflags" ]; then
4209     if enabled small; then
4210         optflags=$cflags_size
4211     elif enabled optimizations; then
4212         optflags=$cflags_speed
4213     else
4214         optflags=$cflags_noopt
4215     fi
4216 fi
4217
4218 check_optflags(){
4219     check_cflags "$@"
4220     enabled lto && check_ldflags "$@"
4221 }
4222
4223
4224 if enabled lto; then
4225     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4226     check_cflags  -flto
4227     check_ldflags -flto $cpuflags
4228 fi
4229
4230 check_optflags $optflags
4231 check_optflags -fno-math-errno
4232 check_optflags -fno-signed-zeros
4233
4234 enabled ftrapv && check_cflags -ftrapv
4235
4236 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4237 int x;
4238 EOF
4239
4240
4241 if enabled icc; then
4242     # Just warnings, no remarks
4243     check_cflags -w1
4244     # -wd: Disable following warnings
4245     # 144, 167, 556: -Wno-pointer-sign
4246     # 188: enumerated type mixed with another type
4247     # 1292: attribute "foo" ignored
4248     # 1419: external declaration in primary source file
4249     # 10006: ignoring unknown option -fno-signed-zeros
4250     # 10148: ignoring unknown option -Wno-parentheses
4251     # 10156: ignoring option '-W'; no argument required
4252     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4253     # 11030: Warning unknown option --as-needed
4254     # 10156: ignoring option '-export'; no argument required
4255     check_ldflags -wd10156,11030
4256     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4257     enable ebp_available
4258     if enabled x86_32; then
4259         icc_version=$($cc -dumpversion)
4260         test ${icc_version%%.*} -ge 11 &&
4261             check_cflags -falign-stack=maintain-16-byte ||
4262             disable aligned_stack
4263     fi
4264 elif enabled ccc; then
4265     # disable some annoying warnings
4266     add_cflags -msg_disable bitnotint
4267     add_cflags -msg_disable mixfuncvoid
4268     add_cflags -msg_disable nonstandcast
4269     add_cflags -msg_disable unsupieee
4270 elif enabled gcc; then
4271     check_optflags -fno-tree-vectorize
4272     check_cflags -Werror=implicit-function-declaration
4273     check_cflags -Werror=missing-prototypes
4274     check_cflags -Werror=return-type
4275     check_cflags -Werror=vla
4276 elif enabled llvm_gcc; then
4277     check_cflags -mllvm -stack-alignment=16
4278 elif enabled clang; then
4279     check_cflags -mllvm -stack-alignment=16
4280     check_cflags -Qunused-arguments
4281     check_cflags -Werror=implicit-function-declaration
4282     check_cflags -Werror=missing-prototypes
4283     check_cflags -Werror=return-type
4284 elif enabled armcc; then
4285     # 2523: use of inline assembler is deprecated
4286     add_cflags -W${armcc_opt},--diag_suppress=2523
4287     add_cflags -W${armcc_opt},--diag_suppress=1207
4288     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4289     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4290     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4291     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4292 elif enabled tms470; then
4293     add_cflags -pds=824 -pds=837
4294 elif enabled pathscale; then
4295     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4296 elif enabled msvc; then
4297     enabled x86_32 && disable aligned_stack
4298 fi
4299
4300 case $target_os in
4301     osf1)
4302         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4303     ;;
4304     plan9)
4305         add_cppflags -Dmain=plan9_main
4306     ;;
4307 esac
4308
4309 enable frame_thread_encoder
4310 enabled_any $THREADS_LIST      && enable threads
4311 enabled_any $ATOMICS_LIST      && enable atomics_native
4312
4313 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4314
4315 check_deps $CONFIG_LIST       \
4316            $CONFIG_EXTRA      \
4317            $HAVE_LIST         \
4318            $ALL_COMPONENTS    \
4319
4320
4321 if test $target_os = "haiku"; then
4322     disable memalign
4323     disable posix_memalign
4324 fi
4325
4326 ! enabled_any memalign posix_memalign aligned_malloc &&
4327     enabled_any $need_memalign && enable memalign_hack
4328
4329 # add_dep lib dep
4330 # -> enable ${lib}_deps_${dep}
4331 # -> add $dep to ${lib}_deps only once
4332 add_dep() {
4333     lib=$1
4334     dep=$2
4335     enabled "${lib}_deps_${dep}" && return 0
4336     enable  "${lib}_deps_${dep}"
4337     prepend "${lib}_deps" $dep
4338 }
4339
4340 # merge deps lib components
4341 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4342 merge_deps() {
4343     lib=$1
4344     shift
4345     for comp in $*; do
4346         enabled $comp || continue
4347         eval "dep=\"\$${comp}_deps\""
4348         for d in $dep; do
4349             add_dep $lib $d
4350         done
4351     done
4352 }
4353
4354 merge_deps libavfilter $FILTER_LIST
4355
4356 echo "install prefix            $prefix"
4357 echo "source path               $source_path"
4358 echo "C compiler                $cc"
4359 echo "ARCH                      $arch ($cpu)"
4360 if test "$build_suffix" != ""; then
4361     echo "build suffix              $build_suffix"
4362 fi
4363 if test "$progs_suffix" != ""; then
4364     echo "progs suffix              $progs_suffix"
4365 fi
4366 if test "$extra_version" != ""; then
4367     echo "version string suffix     $extra_version"
4368 fi
4369 echo "big-endian                ${bigendian-no}"
4370 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4371 if enabled x86; then
4372     echo "${yasmexe}                      ${yasm-no}"
4373     echo "MMX enabled               ${mmx-no}"
4374     echo "MMXEXT enabled            ${mmxext-no}"
4375     echo "3DNow! enabled            ${amd3dnow-no}"
4376     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4377     echo "SSE enabled               ${sse-no}"
4378     echo "SSSE3 enabled             ${ssse3-no}"
4379     echo "AVX enabled               ${avx-no}"
4380     echo "FMA4 enabled              ${fma4-no}"
4381     echo "CMOV enabled              ${cmov-no}"
4382     echo "CMOV is fast              ${fast_cmov-no}"
4383     echo "EBX available             ${ebx_available-no}"
4384     echo "EBP available             ${ebp_available-no}"
4385 fi
4386 if enabled arm; then
4387     echo "ARMv5TE enabled           ${armv5te-no}"
4388     echo "ARMv6 enabled             ${armv6-no}"
4389     echo "ARMv6T2 enabled           ${armv6t2-no}"
4390     echo "VFP enabled               ${vfp-no}"
4391     echo "NEON enabled              ${neon-no}"
4392     echo "THUMB enabled             ${thumb-no}"
4393 fi
4394 if enabled mips; then
4395     echo "MIPS FPU enabled          ${mipsfpu-no}"
4396     echo "MIPS32R2 enabled          ${mips32r2-no}"
4397     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4398     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4399 fi
4400 if enabled ppc; then
4401     echo "AltiVec enabled           ${altivec-no}"
4402     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4403     echo "dcbzl available           ${dcbzl-no}"
4404 fi
4405 if enabled sparc; then
4406     echo "VIS enabled               ${vis-no}"
4407 fi
4408 echo "debug symbols             ${debug-no}"
4409 echo "strip symbols             ${stripping-no}"
4410 echo "optimize for size         ${small-no}"
4411 echo "optimizations             ${optimizations-no}"
4412 echo "static                    ${static-no}"
4413 echo "shared                    ${shared-no}"
4414 echo "postprocessing support    ${postproc-no}"
4415 echo "new filter support        ${avfilter-no}"
4416 echo "network support           ${network-no}"
4417 echo "threading support         ${thread_type-no}"
4418 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4419 echo "SDL support               ${sdl-no}"
4420 echo "opencl enabled            ${opencl-no}"
4421 echo "libshine enabled          ${libshine-no}"
4422 echo "texi2html enabled         ${texi2html-no}"
4423 echo "perl enabled              ${perl-no}"
4424 echo "pod2man enabled           ${pod2man-no}"
4425 echo "makeinfo enabled          ${makeinfo-no}"
4426 test -n "$random_seed" &&
4427     echo "random seed               ${random_seed}"
4428 echo
4429
4430 echo "External libraries:"
4431 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4432 echo
4433
4434 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4435     echo "Enabled ${type}s:"
4436     eval list=\$$(toupper $type)_LIST
4437     print_enabled '_*' $list | print_3_columns
4438     echo
4439 done
4440
4441 license="LGPL version 2.1 or later"
4442 if enabled nonfree; then
4443     license="nonfree and unredistributable"
4444 elif enabled gplv3; then
4445     license="GPL version 3 or later"
4446 elif enabled lgplv3; then
4447     license="LGPL version 3 or later"
4448 elif enabled gpl; then
4449     license="GPL version 2 or later"
4450 fi
4451
4452 echo "License: $license"
4453
4454 echo "Creating config.mak, config.h, and doc/config.texi..."
4455
4456 test -e Makefile || $ln_s "$source_path/Makefile" .
4457
4458 enabled stripping || strip="echo skipping strip"
4459
4460 config_files="$TMPH config.mak doc/config.texi"
4461
4462 cat > config.mak <<EOF
4463 # Automatically generated by configure - do not modify!
4464 ifndef FFMPEG_CONFIG_MAK
4465 FFMPEG_CONFIG_MAK=1
4466 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4467 prefix=$prefix
4468 LIBDIR=\$(DESTDIR)$libdir
4469 SHLIBDIR=\$(DESTDIR)$shlibdir
4470 INCDIR=\$(DESTDIR)$incdir
4471 BINDIR=\$(DESTDIR)$bindir
4472 DATADIR=\$(DESTDIR)$datadir
4473 MANDIR=\$(DESTDIR)$mandir
4474 SRC_PATH=$source_path
4475 ifndef MAIN_MAKEFILE
4476 SRC_PATH:=\$(SRC_PATH:.%=..%)
4477 endif
4478 CC_IDENT=$cc_ident
4479 ARCH=$arch
4480 CC=$cc
4481 CXX=$cxx
4482 AS=$as
4483 LD=$ld
4484 DEPCC=$dep_cc
4485 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4486 DEPAS=$as
4487 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4488 YASM=$yasmexe
4489 DEPYASM=$yasmexe
4490 AR=$ar
4491 ARFLAGS=$arflags
4492 AR_O=$ar_o
4493 RANLIB=$ranlib
4494 CP=cp -p
4495 LN_S=$ln_s
4496 STRIP=$strip
4497 CPPFLAGS=$CPPFLAGS
4498 CFLAGS=$CFLAGS
4499 CXXFLAGS=$CXXFLAGS
4500 ASFLAGS=$ASFLAGS
4501 AS_C=$AS_C
4502 AS_O=$AS_O
4503 CC_C=$CC_C
4504 CC_E=$CC_E
4505 CC_O=$CC_O
4506 CXX_C=$CXX_C
4507 CXX_O=$CXX_O
4508 LD_O=$LD_O
4509 LD_LIB=$LD_LIB
4510 LD_PATH=$LD_PATH
4511 DLLTOOL=$dlltool
4512 LDFLAGS=$LDFLAGS
4513 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4514 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4515 YASMFLAGS=$YASMFLAGS
4516 BUILDSUF=$build_suffix
4517 PROGSSUF=$progs_suffix
4518 FULLNAME=$FULLNAME
4519 LIBPREF=$LIBPREF
4520 LIBSUF=$LIBSUF
4521 LIBNAME=$LIBNAME
4522 SLIBPREF=$SLIBPREF
4523 SLIBSUF=$SLIBSUF
4524 EXESUF=$EXESUF
4525 EXTRA_VERSION=$extra_version
4526 CCDEP=$CCDEP
4527 CXXDEP=$CXXDEP
4528 CCDEP_FLAGS=$CCDEP_FLAGS
4529 ASDEP=$ASDEP
4530 ASDEP_FLAGS=$ASDEP_FLAGS
4531 CC_DEPFLAGS=$CC_DEPFLAGS
4532 AS_DEPFLAGS=$AS_DEPFLAGS
4533 HOSTCC=$host_cc
4534 HOSTLD=$host_ld
4535 HOSTCFLAGS=$host_cflags
4536 HOSTCPPFLAGS=$host_cppflags
4537 HOSTEXESUF=$HOSTEXESUF
4538 HOSTLDFLAGS=$host_ldflags
4539 HOSTLIBS=$host_libs
4540 DEPHOSTCC=$host_cc
4541 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4542 HOSTCCDEP=$HOSTCCDEP
4543 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4544 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4545 HOSTCC_C=$HOSTCC_C
4546 HOSTCC_O=$HOSTCC_O
4547 HOSTLD_O=$HOSTLD_O
4548 TARGET_EXEC=$target_exec
4549 TARGET_PATH=$target_path
4550 LIBS-ffplay=$sdl_libs
4551 CFLAGS-ffplay=$sdl_cflags
4552 ZLIB=$($ldflags_filter -lz)
4553 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4554 EXTRALIBS=$extralibs
4555 COMPAT_OBJS=$compat_objs
4556 EXEOBJS=$exeobjs
4557 INSTALL=$install
4558 LIBTARGET=${LIBTARGET}
4559 SLIBNAME=${SLIBNAME}
4560 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4561 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4562 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4563 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4564 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4565 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4566 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4567 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4568 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4569 NOREDZONE_FLAGS=$noredzone_flags
4570 EOF
4571
4572 get_version(){
4573     lcname=lib${1}
4574     name=$(toupper $lcname)
4575     file=$source_path/$lcname/version.h
4576     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4577     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4578     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4579     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4580     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4581 }
4582
4583 map 'get_version $v' $LIBRARY_LIST
4584
4585 cat > $TMPH <<EOF
4586 /* Automatically generated by configure - do not modify! */
4587 #ifndef FFMPEG_CONFIG_H
4588 #define FFMPEG_CONFIG_H
4589 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4590 #define FFMPEG_LICENSE "$(c_escape $license)"
4591 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4592 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4593 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4594 #define av_restrict $_restrict
4595 #define EXTERN_PREFIX "${extern_prefix}"
4596 #define EXTERN_ASM ${extern_prefix}
4597 #define SLIBSUF "$SLIBSUF"
4598 #define HAVE_MMX2 HAVE_MMXEXT
4599 EOF
4600
4601 test -n "$assert_level" &&
4602     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4603
4604 test -n "$malloc_prefix" &&
4605     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4606
4607 if enabled yasm; then
4608     append config_files $TMPASM
4609     printf '' >$TMPASM
4610 fi
4611
4612 mkdir -p doc
4613 echo "@c auto-generated by configure" > doc/config.texi
4614
4615 print_config ARCH_   "$config_files" $ARCH_LIST
4616 print_config HAVE_   "$config_files" $HAVE_LIST
4617 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4618                                      $CONFIG_EXTRA      \
4619                                      $ALL_COMPONENTS    \
4620
4621 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4622 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4623
4624 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4625 cp_if_changed $TMPH config.h
4626 touch .config
4627
4628 enabled yasm && cp_if_changed $TMPASM config.asm
4629
4630 cat > $TMPH <<EOF
4631 /* Generated by ffconf */
4632 #ifndef AVUTIL_AVCONFIG_H
4633 #define AVUTIL_AVCONFIG_H
4634 EOF
4635
4636 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4637
4638 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4639
4640 cp_if_changed $TMPH libavutil/avconfig.h
4641
4642 if test -n "$WARNINGS"; then
4643     printf "\n$WARNINGS"
4644     enabled fatal_warnings && exit 1
4645 fi
4646
4647 # build pkg-config files
4648
4649 pkgconfig_generate(){
4650     name=$1
4651     shortname=${name#lib}${build_suffix}
4652     comment=$2
4653     version=$3
4654     libs=$4
4655     requires=$5
4656     enabled ${name#lib} || return 0
4657     mkdir -p $name
4658     cat <<EOF > $name/$name${build_suffix}.pc
4659 prefix=$prefix
4660 exec_prefix=\${prefix}
4661 libdir=$libdir
4662 includedir=$incdir
4663
4664 Name: $name
4665 Description: $comment
4666 Version: $version
4667 Requires: $(enabled shared || echo $requires)
4668 Requires.private: $(enabled shared && echo $requires)
4669 Conflicts:
4670 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4671 Libs.private: $(enabled shared && echo $libs)
4672 Cflags: -I\${includedir}
4673 EOF
4674
4675 mkdir -p doc/examples/pc-uninstalled
4676 includedir=${source_path}
4677 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4678     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4679 prefix=
4680 exec_prefix=
4681 libdir=\${pcfiledir}/../../../$name
4682 includedir=${includedir}
4683
4684 Name: $name
4685 Description: $comment
4686 Version: $version
4687 Requires: $requires
4688 Conflicts:
4689 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4690 Cflags: -I\${includedir}
4691 EOF
4692 }
4693
4694 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4695 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4696 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4697 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4698 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4699 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4700 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4701 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4702
4703 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4704 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4705
4706 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4707 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4708 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4709 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4710 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4711 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4712 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4713 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4714 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4715
4716 fix_ffmpeg_remote(){
4717     git_remote_from=$1
4718     git_remote_to=$2
4719     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4720     if [ "$fixme_remote" != "" ]; then
4721         echolog "
4722 Outdated domain in git config, the official domain for ffmpeg git is since
4723 November 2011, source.ffmpeg.org, both the old and the new point to the same
4724 repository and server. To update it enter the following commands:
4725 "
4726         for remote in $fixme_remote; do
4727             echolog "git remote set-url $remote $git_remote_to"
4728         done
4729     fi
4730 }
4731
4732 if test -f "$source_path/.git/config"; then
4733     remote_from=git.videolan.org
4734     remote_to=source.ffmpeg.org
4735     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4736     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4737 fi