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