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   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 106   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
 107
 108 Program options:
 109   --disable-programs       do not build command line programs
 110   --disable-ffmpeg         disable ffmpeg build
 111   --disable-ffplay         disable ffplay build
 112   --disable-ffprobe        disable ffprobe build
 113   --disable-ffserver       disable ffserver build
 114
 115 Documentation options:
 116   --disable-doc            do not build documentation
 117   --disable-htmlpages      do not build HTML documentation pages
 118   --disable-manpages       do not build man documentation pages
 119   --disable-podpages       do not build POD documentation pages
 120   --disable-txtpages       do not build text documentation pages
 121
 122 Component options:
 123   --disable-avdevice       disable libavdevice build
 124   --disable-avcodec        disable libavcodec build
 125   --disable-avformat       disable libavformat build
 126   --disable-avutil         disable libavutil build
 127   --disable-swresample     disable libswresample build
 128   --disable-swscale        disable libswscale build
 129   --disable-postproc       disable libpostproc build
 130   --disable-avfilter       disable libavfilter build
 131   --enable-avresample      enable libavresample build [no]
 132   --disable-pthreads       disable pthreads [auto]
 133   --disable-w32threads     disable Win32 threads [auto]
 134   --disable-os2threads     disable OS/2 threads [auto]
 135   --disable-network        disable network support [no]
 136   --disable-dct            disable DCT code
 137   --disable-dwt            disable DWT code
 138   --disable-error-resilience disable error resilience code
 139   --disable-lsp            disable LSP code
 140   --disable-lzo            disable LZO decoder code
 141   --disable-mdct           disable MDCT code
 142   --disable-rdft           disable RDFT code
 143   --disable-fft            disable FFT code
 144
 145 Hardware accelerators:
 146   --disable-dxva2          disable DXVA2 code [autodetect]
 147   --disable-vaapi          disable VAAPI code [autodetect]
 148   --enable-vda             enable VDA code
 149   --disable-vdpau          disable VDPAU code [autodetect]
 150
 151 Individual component options:
 152   --disable-everything     disable all components listed below
 153   --disable-encoder=NAME   disable encoder NAME
 154   --enable-encoder=NAME    enable encoder NAME
 155   --disable-encoders       disable all encoders
 156   --disable-decoder=NAME   disable decoder NAME
 157   --enable-decoder=NAME    enable decoder NAME
 158   --disable-decoders       disable all decoders
 159   --disable-hwaccel=NAME   disable hwaccel NAME
 160   --enable-hwaccel=NAME    enable hwaccel NAME
 161   --disable-hwaccels       disable all hwaccels
 162   --disable-muxer=NAME     disable muxer NAME
 163   --enable-muxer=NAME      enable muxer NAME
 164   --disable-muxers         disable all muxers
 165   --disable-demuxer=NAME   disable demuxer NAME
 166   --enable-demuxer=NAME    enable demuxer NAME
 167   --disable-demuxers       disable all demuxers
 168   --enable-parser=NAME     enable parser NAME
 169   --disable-parser=NAME    disable parser NAME
 170   --disable-parsers        disable all parsers
 171   --enable-bsf=NAME        enable bitstream filter NAME
 172   --disable-bsf=NAME       disable bitstream filter NAME
 173   --disable-bsfs           disable all bitstream filters
 174   --enable-protocol=NAME   enable protocol NAME
 175   --disable-protocol=NAME  disable protocol NAME
 176   --disable-protocols      disable all protocols
 177   --enable-indev=NAME      enable input device NAME
 178   --disable-indev=NAME     disable input device NAME
 179   --disable-indevs         disable input devices
 180   --enable-outdev=NAME     enable output device NAME
 181   --disable-outdev=NAME    disable output device NAME
 182   --disable-outdevs        disable output devices
 183   --disable-devices        disable all devices
 184   --enable-filter=NAME     enable filter NAME
 185   --disable-filter=NAME    disable filter NAME
 186   --disable-filters        disable all filters
 187
 188 External library support:
 189   --enable-avisynth        enable reading of AviSynth script files [no]
 190   --disable-bzlib          disable bzlib [autodetect]
 191   --enable-fontconfig      enable fontconfig
 192   --enable-frei0r          enable frei0r video filtering
 193   --enable-gnutls          enable gnutls [no]
 194   --disable-iconv          disable iconv [autodetect]
 195   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 196   --enable-libass          enable libass subtitles rendering [no]
 197   --enable-libbluray       enable BluRay reading using libbluray [no]
 198   --enable-libcaca         enable textual display using libcaca
 199   --enable-libcelt         enable CELT decoding via libcelt [no]
 200   --enable-libcdio         enable audio CD grabbing with libcdio
 201   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 202                            and libraw1394 [no]
 203   --enable-libfaac         enable AAC encoding via libfaac [no]
 204   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 205   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 206   --enable-libfreetype     enable libfreetype [no]
 207   --enable-libgme          enable Game Music Emu via libgme [no]
 208   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 209   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 210   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 211   --enable-libmodplug      enable ModPlug via libmodplug [no]
 212   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 213   --enable-libnut          enable NUT (de)muxing via libnut,
 214                            native (de)muxer exists [no]
 215   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 216   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 217   --enable-libopencv       enable video filtering via libopencv [no]
 218   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 219   --enable-libopus         enable Opus decoding via libopus [no]
 220   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 221   --enable-libquvi         enable quvi input via libquvi [no]
 222   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 223   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 224   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 225   --enable-libsoxr         enable Include libsoxr resampling [no]
 226   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 227   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 228   --enable-libtheora       enable Theora encoding via libtheora [no]
 229   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 230   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 231   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 232   --enable-libvidstab      enable video stabilization using vid.stab [no]
 233   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 234   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 235   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 236                            native implementation exists [no]
 237   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 238   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 239   --enable-libx264         enable H.264 encoding via x264 [no]
 240   --enable-libxavs         enable AVS encoding via xavs [no]
 241   --enable-libxvid         enable Xvid encoding via xvidcore,
 242                            native MPEG-4/Xvid encoder exists [no]
 243   --enable-libzmq          enable message passing via libzmq [no]
 244   --enable-openal          enable OpenAL 1.1 capture support [no]
 245   --enable-opencl          enable OpenCL code
 246   --enable-openssl         enable openssl [no]
 247   --enable-x11grab         enable X11 grabbing [no]
 248   --disable-zlib           disable zlib [autodetect]
 249
 250 Advanced options (experts only):
 251   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 252   --enable-cross-compile   assume a cross-compiler is used
 253   --sysroot=PATH           root of cross-build tree
 254   --sysinclude=PATH        location of cross-build system headers
 255   --target-os=OS           compiler targets OS [$target_os]
 256   --target-exec=CMD        command to run executables on target
 257   --target-path=DIR        path to view of build directory on target
 258   --target-samples=DIR     path to samples directory on target
 259   --toolchain=NAME         set tool defaults according to NAME
 260   --nm=NM                  use nm tool NM [$nm_default]
 261   --ar=AR                  use archive tool AR [$ar_default]
 262   --as=AS                  use assembler AS [$as_default]
 263   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 264   --cc=CC                  use C compiler CC [$cc_default]
 265   --cxx=CXX                use C compiler CXX [$cxx_default]
 266   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 267   --ld=LD                  use linker LD [$ld_default]
 268   --host-cc=HOSTCC         use host C compiler HOSTCC
 269   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 270   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 271   --host-ld=HOSTLD         use host linker HOSTLD
 272   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 273   --host-libs=HLIBS        use libs HLIBS when linking for host
 274   --host-os=OS             compiler host OS [$target_os]
 275   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 276   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 277   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 278   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 279   --extra-version=STRING   version string suffix []
 280   --optflags=OPTFLAGS      override optimization-related compiler flags
 281   --build-suffix=SUFFIX    library name suffix []
 282   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 283   --progs-suffix=SUFFIX    program name suffix []
 284   --arch=ARCH              select architecture [$arch]
 285   --cpu=CPU                select the minimum required CPU (affects
 286                            instruction selection, may crash on older CPUs)
 287   --enable-pic             build position-independent code
 288   --enable-sram            allow use of on-chip SRAM
 289   --enable-thumb           compile for Thumb instruction set
 290   --disable-symver         disable symbol versioning
 291   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 292   --disable-safe-bitstream-reader
 293                            disable buffer boundary checking in bitreaders
 294                            (faster, but may crash)
 295   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 296   --enable-lto             use link-time optimization
 297
 298 Optimization options (experts only):
 299   --disable-asm            disable all assembler optimizations
 300   --disable-altivec        disable AltiVec optimizations
 301   --disable-amd3dnow       disable 3DNow! optimizations
 302   --disable-amd3dnowext    disable 3DNow! extended optimizations
 303   --disable-mmx            disable MMX optimizations
 304   --disable-mmxext         disable MMXEXT optimizations
 305   --disable-sse            disable SSE optimizations
 306   --disable-sse2           disable SSE2 optimizations
 307   --disable-sse3           disable SSE3 optimizations
 308   --disable-ssse3          disable SSSE3 optimizations
 309   --disable-sse4           disable SSE4 optimizations
 310   --disable-sse42          disable SSE4.2 optimizations
 311   --disable-avx            disable AVX optimizations
 312   --disable-fma4           disable FMA4 optimizations
 313   --disable-armv5te        disable armv5te optimizations
 314   --disable-armv6          disable armv6 optimizations
 315   --disable-armv6t2        disable armv6t2 optimizations
 316   --disable-vfp            disable VFP optimizations
 317   --disable-neon           disable NEON optimizations
 318   --disable-vis            disable VIS optimizations
 319   --disable-inline-asm     disable use of inline assembler
 320   --disable-yasm           disable use of yasm assembler
 321   --disable-mips32r2       disable MIPS32R2 optimizations
 322   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 323   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 324   --disable-mipsfpu        disable floating point MIPS optimizations
 325   --disable-fast-unaligned consider unaligned accesses slow
 326
 327 Developer options (useful when working on FFmpeg itself):
 328   --disable-debug          disable debugging symbols
 329   --enable-debug=LEVEL     set the debug level [$debuglevel]
 330   --disable-optimizations  disable compiler optimizations
 331   --enable-extra-warnings  enable more compiler warnings
 332   --disable-stripping      disable stripping of executables and shared libraries
 333   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 334                            2 causes a slowdown at runtime.
 335   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 336   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 337                            leaks and errors, using the specified valgrind binary.
 338                            Cannot be combined with --target-exec
 339   --enable-ftrapv          Trap arithmetic overflows
 340   --samples=PATH           location of test samples for FATE, if not set use
 341                            \$FATE_SAMPLES at make invocation time.
 342   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 343                            should be used only for debugging purposes)
 344   --enable-random          randomly enable/disable components
 345   --disable-random
 346   --enable-random=LIST     randomly enable/disable specific components or
 347   --disable-random=LIST    component groups. LIST is a comma-separated list
 348                            of NAME[:PROB] entries where NAME is a component
 349                            (group) and PROB the probability associated with
 350                            NAME (default 0.5).
 351   --random-seed=VALUE      seed value for --enable/disable-random
 352
 353 NOTE: Object files are built at the place where configure is launched.
 354 EOF
 355   exit 0
 356 }
 357
 358 quotes='""'
 359
 360 log(){
 361     echo "$@" >> $logfile
 362 }
 363
 364 log_file(){
 365     log BEGIN $1
 366     pr -n -t $1 >> $logfile
 367     log END $1
 368 }
 369
 370 echolog(){
 371     log "$@"
 372     echo "$@"
 373 }
 374
 375 warn(){
 376     log "WARNING: $*"
 377     WARNINGS="${WARNINGS}WARNING: $*\n"
 378 }
 379
 380 die(){
 381     echolog "$@"
 382     cat <<EOF
 383
 384 If you think configure made a mistake, make sure you are using the latest
 385 version from Git.  If the latest version fails, report the problem to the
 386 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 387 EOF
 388     if disabled logging; then
 389         cat <<EOF
 390 Rerun configure with logging enabled (do not use --disable-logging), and
 391 include the log this produces with your report.
 392 EOF
 393     else
 394         cat <<EOF
 395 Include the log file "$logfile" produced by configure as this will help
 396 solving the problem.
 397 EOF
 398     fi
 399     exit 1
 400 }
 401
 402 # Avoid locale weirdness, besides we really just want to translate ASCII.
 403 toupper(){
 404     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 405 }
 406
 407 tolower(){
 408     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 409 }
 410
 411 c_escape(){
 412     echo "$*" | sed 's/["\\]/\\\0/g'
 413 }
 414
 415 sh_quote(){
 416     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 417     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 418     echo "$v"
 419 }
 420
 421 cleanws(){
 422     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 423 }
 424
 425 filter(){
 426     pat=$1
 427     shift
 428     for v; do
 429         eval "case $v in $pat) echo $v ;; esac"
 430     done
 431 }
 432
 433 filter_out(){
 434     pat=$1
 435     shift
 436     for v; do
 437         eval "case $v in $pat) ;; *) echo $v ;; esac"
 438     done
 439 }
 440
 441 map(){
 442     m=$1
 443     shift
 444     for v; do eval $m; done
 445 }
 446
 447 add_suffix(){
 448     suffix=$1
 449     shift
 450     for v; do echo ${v}${suffix}; done
 451 }
 452
 453 set_all(){
 454     value=$1
 455     shift
 456     for var in $*; do
 457         eval $var=$value
 458     done
 459 }
 460
 461 set_weak(){
 462     value=$1
 463     shift
 464     for var; do
 465         eval : \${$var:=$value}
 466     done
 467 }
 468
 469 sanitize_var_name(){
 470     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 471 }
 472
 473 set_safe(){
 474     var=$1
 475     shift
 476     eval $(sanitize_var_name "$var")='$*'
 477 }
 478
 479 get_safe(){
 480     eval echo \$$(sanitize_var_name "$1")
 481 }
 482
 483 pushvar(){
 484     for pvar in $*; do
 485         eval level=\${${pvar}_level:=0}
 486         eval ${pvar}_${level}="\$$pvar"
 487         eval ${pvar}_level=$(($level+1))
 488     done
 489 }
 490
 491 popvar(){
 492     for pvar in $*; do
 493         eval level=\${${pvar}_level:-0}
 494         test $level = 0 && continue
 495         eval level=$(($level-1))
 496         eval $pvar="\${${pvar}_${level}}"
 497         eval ${pvar}_level=$level
 498         eval unset ${pvar}_${level}
 499     done
 500 }
 501
 502 enable(){
 503     set_all yes $*
 504 }
 505
 506 disable(){
 507     set_all no $*
 508 }
 509
 510 enable_weak(){
 511     set_weak yes $*
 512 }
 513
 514 disable_weak(){
 515     set_weak no $*
 516 }
 517
 518 enable_safe(){
 519     for var; do
 520         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 521     done
 522 }
 523
 524 disable_safe(){
 525     for var; do
 526         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 527     done
 528 }
 529
 530 do_enable_deep(){
 531     for var; do
 532         enabled $var && continue
 533         eval sel="\$${var}_select"
 534         eval sgs="\$${var}_suggest"
 535         pushvar var sgs
 536         enable_deep $sel
 537         popvar sgs
 538         enable_deep_weak $sgs
 539         popvar var
 540     done
 541 }
 542
 543 enable_deep(){
 544     do_enable_deep $*
 545     enable $*
 546 }
 547
 548 enable_deep_weak(){
 549     for var; do
 550         disabled $var && continue
 551         pushvar var
 552         do_enable_deep $var
 553         popvar var
 554         enable_weak $var
 555     done
 556 }
 557
 558 enabled(){
 559     test "${1#!}" = "$1" && op== || op=!=
 560     eval test "x\$${1#!}" $op "xyes"
 561 }
 562
 563 disabled(){
 564     test "${1#!}" = "$1" && op== || op=!=
 565     eval test "x\$${1#!}" $op "xno"
 566 }
 567
 568 enabled_all(){
 569     for opt; do
 570         enabled $opt || return 1
 571     done
 572 }
 573
 574 disabled_all(){
 575     for opt; do
 576         disabled $opt || return 1
 577     done
 578 }
 579
 580 enabled_any(){
 581     for opt; do
 582         enabled $opt && return 0
 583     done
 584 }
 585
 586 disabled_any(){
 587     for opt; do
 588         disabled $opt && return 0
 589     done
 590     return 1
 591 }
 592
 593 set_default(){
 594     for opt; do
 595         eval : \${$opt:=\$${opt}_default}
 596     done
 597 }
 598
 599 is_in(){
 600     value=$1
 601     shift
 602     for var in $*; do
 603         [ $var = $value ] && return 0
 604     done
 605     return 1
 606 }
 607
 608 do_check_deps(){
 609     for cfg; do
 610         cfg="${cfg#!}"
 611         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 612         disabled ${cfg}_checking && continue
 613         enable ${cfg}_checking
 614         append allopts $cfg
 615
 616         eval dep_all="\$${cfg}_deps"
 617         eval dep_any="\$${cfg}_deps_any"
 618         eval dep_sel="\$${cfg}_select"
 619         eval dep_sgs="\$${cfg}_suggest"
 620         eval dep_ifa="\$${cfg}_if"
 621         eval dep_ifn="\$${cfg}_if_any"
 622
 623         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 624         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 625         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 626
 627         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 628         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 629         enabled_all  $dep_all || disable $cfg
 630         enabled_any  $dep_any || disable $cfg
 631         disabled_any $dep_sel && disable $cfg
 632
 633         if enabled $cfg; then
 634             enable_deep $dep_sel
 635             enable_deep_weak $dep_sgs
 636         fi
 637
 638         disable ${cfg}_checking
 639     done
 640 }
 641
 642 check_deps(){
 643     unset allopts
 644
 645     do_check_deps "$@"
 646
 647     for cfg in $allopts; do
 648         enabled $cfg || continue
 649         eval dep_extralibs="\$${cfg}_extralibs"
 650         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 651     done
 652 }
 653
 654 print_config(){
 655     pfx=$1
 656     files=$2
 657     shift 2
 658     map 'eval echo "$v \${$v:-no}"' "$@" |
 659     awk "BEGIN { split(\"$files\", files) }
 660         {
 661             c = \"$pfx\" toupper(\$1);
 662             v = \$2;
 663             sub(/yes/, 1, v);
 664             sub(/no/,  0, v);
 665             for (f in files) {
 666                 file = files[f];
 667                 if (file ~ /\\.h\$/) {
 668                     printf(\"#define %s %d\\n\", c, v) >>file;
 669                 } else if (file ~ /\\.asm\$/) {
 670                     printf(\"%%define %s %d\\n\", c, v) >>file;
 671                 } else if (file ~ /\\.mak\$/) {
 672                     n = -v ? \"\" : \"!\";
 673                     printf(\"%s%s=yes\\n\", n, c) >>file;
 674                 } else if (file ~ /\\.texi\$/) {
 675                     pre = -v ? \"\" : \"@c \";
 676                     yesno = \$2;
 677                     c2 = tolower(c);
 678                     gsub(/_/, \"-\", c2);
 679                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 680                 }
 681             }
 682         }"
 683 }
 684
 685 print_enabled(){
 686     suf=$1
 687     shift
 688     for v; do
 689         enabled $v && printf "%s\n" ${v%$suf};
 690     done
 691 }
 692
 693 append(){
 694     var=$1
 695     shift
 696     eval "$var=\"\$$var $*\""
 697 }
 698
 699 prepend(){
 700     var=$1
 701     shift
 702     eval "$var=\"$* \$$var\""
 703 }
 704
 705 add_cppflags(){
 706     append CPPFLAGS "$@"
 707 }
 708
 709 add_cflags(){
 710     append CFLAGS $($cflags_filter "$@")
 711 }
 712
 713 add_cxxflags(){
 714     append CXXFLAGS $($cflags_filter "$@")
 715 }
 716
 717 add_asflags(){
 718     append ASFLAGS $($asflags_filter "$@")
 719 }
 720
 721 add_ldflags(){
 722     append LDFLAGS $($ldflags_filter "$@")
 723 }
 724
 725 add_extralibs(){
 726     prepend extralibs $($ldflags_filter "$@")
 727 }
 728
 729 add_host_cppflags(){
 730     append host_cppflags "$@"
 731 }
 732
 733 add_host_cflags(){
 734     append host_cflags $($host_cflags_filter "$@")
 735 }
 736
 737 add_host_ldflags(){
 738     append host_ldflags $($host_ldflags_filter "$@")
 739 }
 740
 741 add_compat(){
 742     append compat_objs $1
 743     shift
 744     map 'add_cppflags -D$v' "$@"
 745 }
 746
 747 check_cmd(){
 748     log "$@"
 749     "$@" >> $logfile 2>&1
 750 }
 751
 752 cc_o(){
 753     eval printf '%s\\n' $CC_O
 754 }
 755
 756 cc_e(){
 757     eval printf '%s\\n' $CC_E
 758 }
 759
 760 check_cc(){
 761     log check_cc "$@"
 762     cat > $TMPC
 763     log_file $TMPC
 764     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 765 }
 766
 767 check_cxx(){
 768     log check_cxx "$@"
 769     cat > $TMPCPP
 770     log_file $TMPCPP
 771     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 772 }
 773
 774 check_cpp(){
 775     log check_cpp "$@"
 776     cat > $TMPC
 777     log_file $TMPC
 778     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 779 }
 780
 781 as_o(){
 782     eval printf '%s\\n' $AS_O
 783 }
 784
 785 check_as(){
 786     log check_as "$@"
 787     cat > $TMPS
 788     log_file $TMPS
 789     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 790 }
 791
 792 check_inline_asm(){
 793     log check_inline_asm "$@"
 794     name="$1"
 795     code="$2"
 796     shift 2
 797     disable $name
 798     check_cc "$@" <<EOF && enable $name
 799 void foo(void){ __asm__ volatile($code); }
 800 EOF
 801 }
 802
 803 check_insn(){
 804     log check_insn "$@"
 805     check_inline_asm ${1}_inline "\"$2\""
 806     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 807 }
 808
 809 check_yasm(){
 810     log check_yasm "$@"
 811     echo "$1" > $TMPS
 812     log_file $TMPS
 813     shift 1
 814     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 815 }
 816
 817 ld_o(){
 818     eval printf '%s\\n' $LD_O
 819 }
 820
 821 check_ld(){
 822     log check_ld "$@"
 823     type=$1
 824     shift 1
 825     flags=$(filter_out '-l*|*.so' $@)
 826     libs=$(filter '-l*|*.so' $@)
 827     check_$type $($cflags_filter $flags) || return
 828     flags=$($ldflags_filter $flags)
 829     libs=$($ldflags_filter $libs)
 830     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 831 }
 832
 833 check_code(){
 834     log check_code "$@"
 835     check=$1
 836     headers=$2
 837     code=$3
 838     shift 3
 839     {
 840         for hdr in $headers; do
 841             echo "#include <$hdr>"
 842         done
 843         echo "int main(void) { $code; return 0; }"
 844     } | check_$check "$@"
 845 }
 846
 847 check_cppflags(){
 848     log check_cppflags "$@"
 849     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 850 int x;
 851 EOF
 852 }
 853
 854 check_cflags(){
 855     log check_cflags "$@"
 856     set -- $($cflags_filter "$@")
 857     check_cc "$@" <<EOF && append CFLAGS "$@"
 858 int x;
 859 EOF
 860 }
 861
 862 check_cxxflags(){
 863     log check_cxxflags "$@"
 864     set -- $($cflags_filter "$@")
 865     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 866 int x;
 867 EOF
 868 }
 869
 870 test_ldflags(){
 871     log test_ldflags "$@"
 872     check_ld "cc" "$@" <<EOF
 873 int main(void){ return 0; }
 874 EOF
 875 }
 876
 877 check_ldflags(){
 878     log check_ldflags "$@"
 879     test_ldflags "$@" && add_ldflags "$@"
 880 }
 881
 882 check_header(){
 883     log check_header "$@"
 884     header=$1
 885     shift
 886     disable_safe $header
 887     check_cpp "$@" <<EOF && enable_safe $header
 888 #include <$header>
 889 int x;
 890 EOF
 891 }
 892
 893 check_func(){
 894     log check_func "$@"
 895     func=$1
 896     shift
 897     disable $func
 898     check_ld "cc" "$@" <<EOF && enable $func
 899 extern int $func();
 900 int main(void){ $func(); }
 901 EOF
 902 }
 903
 904 check_mathfunc(){
 905     log check_mathfunc "$@"
 906     func=$1
 907     narg=$2
 908     shift 2
 909     test $narg = 2 && args="f, g" || args="f"
 910     disable $func
 911     check_ld "cc" "$@" <<EOF && enable $func
 912 #include <math.h>
 913 float foo(float f, float g) { return $func($args); }
 914 int main(void){ return (int) foo; }
 915 EOF
 916 }
 917
 918 check_func_headers(){
 919     log check_func_headers "$@"
 920     headers=$1
 921     funcs=$2
 922     shift 2
 923     {
 924         for hdr in $headers; do
 925             echo "#include <$hdr>"
 926         done
 927         for func in $funcs; do
 928             echo "long check_$func(void) { return (long) $func; }"
 929         done
 930         echo "int main(void) { return 0; }"
 931     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 932 }
 933
 934 check_class_headers_cpp(){
 935     log check_class_headers_cpp "$@"
 936     headers=$1
 937     classes=$2
 938     shift 2
 939     {
 940         for hdr in $headers; do
 941             echo "#include <$hdr>"
 942         done
 943         echo "int main(void) { "
 944         i=1
 945         for class in $classes; do
 946             echo "$class obj$i;"
 947             i=$(expr $i + 1)
 948         done
 949         echo "return 0; }"
 950     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 951 }
 952
 953 check_cpp_condition(){
 954     log check_cpp_condition "$@"
 955     header=$1
 956     condition=$2
 957     shift 2
 958     check_cpp "$@" <<EOF
 959 #include <$header>
 960 #if !($condition)
 961 #error "unsatisfied condition: $condition"
 962 #endif
 963 EOF
 964 }
 965
 966 check_lib(){
 967     log check_lib "$@"
 968     header="$1"
 969     func="$2"
 970     shift 2
 971     check_header $header && check_func $func "$@" && add_extralibs "$@"
 972 }
 973
 974 check_lib2(){
 975     log check_lib2 "$@"
 976     headers="$1"
 977     funcs="$2"
 978     shift 2
 979     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 980 }
 981
 982 check_lib_cpp(){
 983     log check_lib_cpp "$@"
 984     headers="$1"
 985     classes="$2"
 986     shift 2
 987     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 988 }
 989
 990 check_pkg_config(){
 991     log check_pkg_config "$@"
 992     pkg="$1"
 993     headers="$2"
 994     funcs="$3"
 995     shift 3
 996     $pkg_config --exists $pkg 2>/dev/null || return
 997     pkg_cflags=$($pkg_config --cflags $pkg)
 998     pkg_libs=$($pkg_config --libs $pkg)
 999     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1000         set_safe ${pkg}_cflags $pkg_cflags   &&
1001         set_safe ${pkg}_libs   $pkg_libs
1002 }
1003
1004 check_exec(){
1005     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1006 }
1007
1008 check_exec_crash(){
1009     code=$(cat)
1010
1011     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1012     # are safe but may not be available everywhere.  Thus we use
1013     # raise(SIGTERM) instead.  The check is run in a subshell so we
1014     # can redirect the "Terminated" message from the shell.  SIGBUS
1015     # is not defined by standard C so it is used conditionally.
1016
1017     (check_exec "$@") >> $logfile 2>&1 <<EOF
1018 #include <signal.h>
1019 static void sighandler(int sig){
1020     raise(SIGTERM);
1021 }
1022 int foo(void){
1023     $code
1024 }
1025 int (*func_ptr)(void) = foo;
1026 int main(void){
1027     signal(SIGILL, sighandler);
1028     signal(SIGFPE, sighandler);
1029     signal(SIGSEGV, sighandler);
1030 #ifdef SIGBUS
1031     signal(SIGBUS, sighandler);
1032 #endif
1033     return func_ptr();
1034 }
1035 EOF
1036 }
1037
1038 check_type(){
1039     log check_type "$@"
1040     headers=$1
1041     type=$2
1042     shift 2
1043     disable_safe "$type"
1044     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1045 }
1046
1047 check_struct(){
1048     log check_struct "$@"
1049     headers=$1
1050     struct=$2
1051     member=$3
1052     shift 3
1053     disable_safe "${struct}_${member}"
1054     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1055         enable_safe "${struct}_${member}"
1056 }
1057
1058 check_builtin(){
1059     log check_builtin "$@"
1060     name=$1
1061     headers=$2
1062     builtin=$3
1063     shift 3
1064     disable "$name"
1065     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1066 }
1067
1068 require(){
1069     name="$1"
1070     header="$2"
1071     func="$3"
1072     shift 3
1073     check_lib $header $func "$@" || die "ERROR: $name not found"
1074 }
1075
1076 require2(){
1077     name="$1"
1078     headers="$2"
1079     func="$3"
1080     shift 3
1081     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1082 }
1083
1084 require_cpp(){
1085     name="$1"
1086     headers="$2"
1087     classes="$3"
1088     shift 3
1089     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1090 }
1091
1092 require_pkg_config(){
1093     pkg="$1"
1094     check_pkg_config "$@" || die "ERROR: $pkg not found"
1095     add_cflags    $(get_safe ${pkg}_cflags)
1096     add_extralibs $(get_safe ${pkg}_libs)
1097 }
1098
1099 hostcc_o(){
1100     eval printf '%s\\n' $HOSTCC_O
1101 }
1102
1103 check_host_cc(){
1104     log check_host_cc "$@"
1105     cat > $TMPC
1106     log_file $TMPC
1107     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1108 }
1109
1110 check_host_cppflags(){
1111     log check_host_cppflags "$@"
1112     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1113 int x;
1114 EOF
1115 }
1116
1117 check_host_cflags(){
1118     log check_host_cflags "$@"
1119     set -- $($host_cflags_filter "$@")
1120     check_host_cc "$@" <<EOF && append host_cflags "$@"
1121 int x;
1122 EOF
1123 }
1124
1125 apply(){
1126     file=$1
1127     shift
1128     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1129 }
1130
1131 cp_if_changed(){
1132     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1133     mkdir -p "$(dirname $2)"
1134     $cp_f "$1" "$2"
1135 }
1136
1137 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1138 # system-dependent things.
1139
1140 COMPONENT_LIST="
1141     bsfs
1142     decoders
1143     demuxers
1144     encoders
1145     filters
1146     hwaccels
1147     indevs
1148     muxers
1149     outdevs
1150     parsers
1151     protocols
1152 "
1153
1154 EXTERNAL_LIBRARY_LIST="
1155     avisynth
1156     bzlib
1157     crystalhd
1158     fontconfig
1159     frei0r
1160     gnutls
1161     iconv
1162     libaacplus
1163     libass
1164     libbluray
1165     libcaca
1166     libcdio
1167     libcelt
1168     libdc1394
1169     libfaac
1170     libfdk_aac
1171     libflite
1172     libfreetype
1173     libgme
1174     libgsm
1175     libiec61883
1176     libilbc
1177     libmodplug
1178     libmp3lame
1179     libnut
1180     libopencore_amrnb
1181     libopencore_amrwb
1182     libopencv
1183     libopenjpeg
1184     libopus
1185     libpulse
1186     libquvi
1187     librtmp
1188     libschroedinger
1189     libshine
1190     libsoxr
1191     libspeex
1192     libstagefright_h264
1193     libtheora
1194     libtwolame
1195     libutvideo
1196     libv4l2
1197     libvidstab
1198     libvo_aacenc
1199     libvo_amrwbenc
1200     libvorbis
1201     libvpx
1202     libwavpack
1203     libx264
1204     libxavs
1205     libxvid
1206     libzmq
1207     openal
1208     opencl
1209     openssl
1210     x11grab
1211     zlib
1212 "
1213
1214 DOCUMENT_LIST="
1215     doc
1216     htmlpages
1217     manpages
1218     podpages
1219     txtpages
1220 "
1221
1222 HWACCEL_LIST="
1223     dxva2
1224     vaapi
1225     vda
1226     vdpau
1227 "
1228
1229 LIBRARY_LIST="
1230     avcodec
1231     avdevice
1232     avfilter
1233     avformat
1234     avresample
1235     avutil
1236     postproc
1237     swresample
1238     swscale
1239 "
1240
1241 PROGRAM_LIST="
1242     ffplay
1243     ffprobe
1244     ffserver
1245     ffmpeg
1246 "
1247
1248 CONFIG_LIST="
1249     $COMPONENT_LIST
1250     $DOCUMENT_LIST
1251     $EXTERNAL_LIBRARY_LIST
1252     $HWACCEL_LIST
1253     $LIBRARY_LIST
1254     $PROGRAM_LIST
1255     dct
1256     dwt
1257     error_resilience
1258     fast_unaligned
1259     fft
1260     ftrapv
1261     gpl
1262     gray
1263     hardcoded_tables
1264     incompatible_libav_abi
1265     incompatible_fork_abi
1266     lsp
1267     lzo
1268     mdct
1269     memalign_hack
1270     memory_poisoning
1271     network
1272     nonfree
1273     pic
1274     rdft
1275     runtime_cpudetect
1276     safe_bitstream_reader
1277     shared
1278     small
1279     sram
1280     static
1281     swscale_alpha
1282     thumb
1283     version3
1284     xmm_clobber_test
1285 "
1286
1287 THREADS_LIST='
1288     pthreads
1289     w32threads
1290     os2threads
1291 '
1292
1293 ATOMICS_LIST='
1294     atomics_gcc
1295     atomics_suncc
1296     atomics_win32
1297 '
1298
1299 ARCH_LIST='
1300     aarch64
1301     alpha
1302     arm
1303     avr32
1304     avr32_ap
1305     avr32_uc
1306     bfin
1307     ia64
1308     m68k
1309     mips
1310     mips64
1311     parisc
1312     ppc
1313     ppc64
1314     s390
1315     sh4
1316     sparc
1317     sparc64
1318     tilegx
1319     tilepro
1320     tomi
1321     x86
1322     x86_32
1323     x86_64
1324 '
1325
1326 ARCH_EXT_LIST_ARM='
1327     armv5te
1328     armv6
1329     armv6t2
1330     neon
1331     vfp
1332     vfpv3
1333 '
1334
1335 ARCH_EXT_LIST_X86='
1336     amd3dnow
1337     amd3dnowext
1338     avx
1339     fma4
1340     mmx
1341     mmxext
1342     sse
1343     sse2
1344     sse3
1345     sse4
1346     sse42
1347     ssse3
1348 '
1349
1350 ARCH_EXT_LIST="
1351     $ARCH_EXT_LIST_ARM
1352     $ARCH_EXT_LIST_X86
1353     altivec
1354     ppc4xx
1355     vis
1356     mipsfpu
1357     mips32r2
1358     mipsdspr1
1359     mipsdspr2
1360 "
1361
1362 HAVE_LIST_CMDLINE='
1363     inline_asm
1364     symver
1365     yasm
1366 '
1367
1368 HAVE_LIST_PUB='
1369     bigendian
1370     fast_unaligned
1371     incompatible_libav_abi
1372     incompatible_fork_abi
1373 '
1374
1375 MATH_FUNCS="
1376     atanf
1377     atan2f
1378     cbrt
1379     cbrtf
1380     cosf
1381     exp2
1382     exp2f
1383     expf
1384     isinf
1385     isnan
1386     ldexpf
1387     llrint
1388     llrintf
1389     log2
1390     log2f
1391     log10f
1392     lrint
1393     lrintf
1394     powf
1395     rint
1396     round
1397     roundf
1398     sinf
1399     trunc
1400     truncf
1401 "
1402
1403 HAVE_LIST="
1404     $ARCH_EXT_LIST
1405     $(add_suffix _external $ARCH_EXT_LIST)
1406     $(add_suffix _inline   $ARCH_EXT_LIST)
1407     $HAVE_LIST_CMDLINE
1408     $HAVE_LIST_PUB
1409     $THREADS_LIST
1410     $ATOMICS_LIST
1411     $MATH_FUNCS
1412     access
1413     aligned_malloc
1414     aligned_stack
1415     alsa_asoundlib_h
1416     altivec_h
1417     arpa_inet_h
1418     asm_mod_q
1419     asm_mod_y
1420     asm_types_h
1421     atomic_cas_ptr
1422     atomics_native
1423     attribute_may_alias
1424     attribute_packed
1425     cdio_paranoia_h
1426     cdio_paranoia_paranoia_h
1427     CL_cl_h
1428     clock_gettime
1429     closesocket
1430     CommandLineToArgvW
1431     cpunop
1432     CryptGenRandom
1433     dcbzl
1434     dev_bktr_ioctl_bt848_h
1435     dev_bktr_ioctl_meteor_h
1436     dev_ic_bt8xx_h
1437     dev_video_bktr_ioctl_bt848_h
1438     dev_video_meteor_ioctl_meteor_h
1439     direct_h
1440     dlfcn_h
1441     dlopen
1442     dos_paths
1443     dxva_h
1444     ebp_available
1445     ebx_available
1446     fast_64bit
1447     fast_clz
1448     fast_cmov
1449     fcntl
1450     fork
1451     getaddrinfo
1452     gethrtime
1453     getopt
1454     GetProcessAffinityMask
1455     GetProcessMemoryInfo
1456     GetProcessTimes
1457     GetSystemTimeAsFileTime
1458     getrusage
1459     getservbyport
1460     gettimeofday
1461     glob
1462     gnu_as
1463     gsm_h
1464     i686
1465     ibm_asm
1466     inet_aton
1467     io_h
1468     inline_asm_labels
1469     isatty
1470     jack_port_get_latency_range
1471     kbhit
1472     ldbrx
1473     libdc1394_1
1474     libdc1394_2
1475     local_aligned_16
1476     local_aligned_8
1477     localtime_r
1478     loongson
1479     lzo1x_999_compress
1480     machine_ioctl_bt848_h
1481     machine_ioctl_meteor_h
1482     machine_rw_barrier
1483     makeinfo
1484     malloc_h
1485     MapViewOfFile
1486     memalign
1487     MemoryBarrier
1488     mkstemp
1489     mm_empty
1490     mmap
1491     mprotect
1492     msvcrt
1493     nanosleep
1494     openjpeg_1_5_openjpeg_h
1495     PeekNamedPipe
1496     perl
1497     pod2man
1498     poll_h
1499     posix_memalign
1500     pragma_deprecated
1501     pthread_cancel
1502     rdtsc
1503     rsync_contimeout
1504     sarestart
1505     sched_getaffinity
1506     sdl
1507     SetConsoleTextAttribute
1508     setmode
1509     setrlimit
1510     Sleep
1511     sndio_h
1512     socklen_t
1513     soundcard_h
1514     strerror_r
1515     struct_addrinfo
1516     struct_group_source_req
1517     struct_ip_mreq_source
1518     struct_ipv6_mreq
1519     struct_pollfd
1520     struct_rusage_ru_maxrss
1521     struct_sctp_event_subscribe
1522     struct_sockaddr_in6
1523     struct_sockaddr_sa_len
1524     struct_sockaddr_storage
1525     struct_stat_st_mtim_tv_nsec
1526     struct_v4l2_frmivalenum_discrete
1527     symver_asm_label
1528     symver_gnu_asm
1529     sync_val_compare_and_swap
1530     sysconf
1531     sysctl
1532     sys_mman_h
1533     sys_param_h
1534     sys_resource_h
1535     sys_select_h
1536     sys_soundcard_h
1537     sys_time_h
1538     sys_un_h
1539     sys_videoio_h
1540     termios_h
1541     texi2html
1542     threads
1543     unistd_h
1544     usleep
1545     vfp_args
1546     VirtualAlloc
1547     windows_h
1548     winsock2_h
1549     xform_asm
1550     xmm_clobbers
1551 "
1552
1553 # options emitted with CONFIG_ prefix but not available on the command line
1554 CONFIG_EXTRA="
1555     aandcttables
1556     ac3dsp
1557     audio_frame_queue
1558     dsputil
1559     frame_thread_encoder
1560     gcrypt
1561     golomb
1562     gplv3
1563     h264chroma
1564     h264dsp
1565     h264pred
1566     h264qpel
1567     hpeldsp
1568     huffman
1569     lgplv3
1570     lpc
1571     mpegaudio
1572     mpegaudiodsp
1573     mpegvideo
1574     mpegvideoenc
1575     nettle
1576     rangecoder
1577     rtpdec
1578     rtpenc_chain
1579     sinewin
1580     videodsp
1581     vp3dsp
1582 "
1583
1584 CMDLINE_SELECT="
1585     $ARCH_EXT_LIST
1586     $CONFIG_LIST
1587     $HAVE_LIST_CMDLINE
1588     $THREADS_LIST
1589     asm
1590     cross_compile
1591     debug
1592     extra_warnings
1593     logging
1594     lto
1595     optimizations
1596     stripping
1597 "
1598
1599 PATHS_LIST='
1600     bindir
1601     datadir
1602     incdir
1603     libdir
1604     mandir
1605     prefix
1606     shlibdir
1607 '
1608
1609 CMDLINE_SET="
1610     $PATHS_LIST
1611     ar
1612     arch
1613     as
1614     assert_level
1615     build_suffix
1616     cc
1617     cpu
1618     cross_prefix
1619     cxx
1620     dep_cc
1621     extra_version
1622     host_cc
1623     host_cflags
1624     host_ld
1625     host_ldflags
1626     host_libs
1627     host_os
1628     install
1629     ld
1630     logfile
1631     malloc_prefix
1632     nm
1633     optflags
1634     pkg_config
1635     progs_suffix
1636     random_seed
1637     samples
1638     strip
1639     sysinclude
1640     sysroot
1641     target_exec
1642     target_os
1643     target_path
1644     target_samples
1645     toolchain
1646     valgrind
1647     yasmexe
1648 "
1649
1650 CMDLINE_APPEND="
1651     extra_cflags
1652     extra_cxxflags
1653     host_cppflags
1654 "
1655
1656 # code dependency declarations
1657
1658 # architecture extensions
1659
1660 armv5te_deps="arm"
1661 armv6_deps="arm"
1662 armv6t2_deps="arm"
1663 neon_deps="arm"
1664 vfp_deps="arm"
1665 vfpv3_deps="vfp"
1666
1667 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1668
1669 mipsfpu_deps="mips"
1670 mips32r2_deps="mips"
1671 mipsdspr1_deps="mips"
1672 mipsdspr2_deps="mips"
1673
1674 altivec_deps="ppc"
1675 ppc4xx_deps="ppc"
1676
1677 vis_deps="sparc"
1678
1679 x86_64_suggest="fast_cmov i686"
1680
1681 amd3dnow_deps="mmx"
1682 amd3dnowext_deps="amd3dnow"
1683 mmx_deps="x86"
1684 mmxext_deps="mmx"
1685 sse_deps="mmxext"
1686 sse2_deps="sse"
1687 sse3_deps="sse2"
1688 ssse3_deps="sse3"
1689 sse4_deps="ssse3"
1690 sse42_deps="sse4"
1691 avx_deps="sse42"
1692 fma4_deps="avx"
1693
1694 mmx_external_deps="yasm"
1695 mmx_inline_deps="inline_asm"
1696 mmx_suggest="mmx_external mmx_inline"
1697
1698 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1699     eval dep=\$${ext}_deps
1700     eval ${ext}_external_deps='"${dep}_external"'
1701     eval ${ext}_inline_deps='"${dep}_inline"'
1702     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1703 done
1704
1705 aligned_stack_if_any="ppc x86"
1706 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1707 fast_clz_if_any="alpha avr32 mips ppc x86"
1708 fast_unaligned_if_any="ppc x86"
1709
1710 inline_asm_deps="!tms470"
1711 need_memalign="altivec neon sse"
1712
1713 symver_if_any="symver_asm_label symver_gnu_asm"
1714
1715 log2_deps="!msvcrt"
1716
1717 # subsystems
1718 dct_select="rdft"
1719 error_resilience_select="dsputil"
1720 frame_thread_encoder_deps="encoders threads"
1721 lpc_select="dsputil"
1722 mdct_select="fft"
1723 rdft_select="fft"
1724 mpegaudio_select="mpegaudiodsp"
1725 mpegaudiodsp_select="dct"
1726 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1727 mpegvideoenc_select="mpegvideo"
1728
1729 # decoders / encoders
1730 aac_decoder_select="mdct sinewin"
1731 aac_encoder_select="audio_frame_queue mdct sinewin"
1732 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1733 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1734 ac3_encoder_select="mdct ac3dsp dsputil"
1735 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1736 aic_decoder_select="dsputil golomb"
1737 alac_encoder_select="lpc"
1738 als_decoder_select="dsputil"
1739 amrnb_decoder_select="lsp"
1740 amrwb_decoder_select="lsp"
1741 amv_decoder_select="dsputil hpeldsp"
1742 amv_encoder_select="aandcttables"
1743 ape_decoder_select="dsputil"
1744 asv1_decoder_select="dsputil"
1745 asv1_encoder_select="dsputil"
1746 asv2_decoder_select="dsputil"
1747 asv2_encoder_select="dsputil"
1748 atrac1_decoder_select="mdct sinewin"
1749 atrac3_decoder_select="mdct"
1750 bink_decoder_select="dsputil hpeldsp"
1751 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1752 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1753 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1754 cllc_decoder_select="dsputil"
1755 comfortnoise_encoder_select="lpc"
1756 cook_decoder_select="dsputil mdct sinewin"
1757 cscd_decoder_select="lzo"
1758 cscd_decoder_suggest="zlib"
1759 dca_decoder_select="mdct"
1760 dirac_decoder_select="dsputil dwt golomb videodsp"
1761 dnxhd_decoder_select="dsputil"
1762 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1763 dvvideo_decoder_select="dsputil"
1764 dvvideo_encoder_select="dsputil"
1765 dxa_decoder_select="zlib"
1766 eac3_decoder_select="ac3_decoder"
1767 eac3_encoder_select="ac3_encoder"
1768 eamad_decoder_select="aandcttables dsputil mpegvideo"
1769 eatgq_decoder_select="aandcttables"
1770 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1771 exr_decoder_select="zlib"
1772 ffv1_decoder_select="dsputil golomb rangecoder"
1773 ffv1_encoder_select="dsputil rangecoder"
1774 ffvhuff_decoder_select="dsputil"
1775 ffvhuff_encoder_select="dsputil huffman"
1776 flac_decoder_select="golomb"
1777 flac_encoder_select="dsputil golomb lpc"
1778 flashsv_decoder_select="zlib"
1779 flashsv_encoder_select="zlib"
1780 flashsv2_encoder_select="zlib"
1781 flashsv2_decoder_select="zlib"
1782 flv_decoder_select="h263_decoder"
1783 flv_encoder_select="h263_encoder"
1784 fourxm_decoder_select="dsputil"
1785 fraps_decoder_select="dsputil huffman"
1786 g2m_decoder_select="dsputil zlib"
1787 g729_decoder_select="dsputil"
1788 h261_decoder_select="error_resilience mpegvideo"
1789 h261_encoder_select="aandcttables mpegvideoenc"
1790 h263_decoder_select="error_resilience h263_parser mpegvideo"
1791 h263_encoder_select="aandcttables mpegvideoenc"
1792 h263i_decoder_select="h263_decoder"
1793 h263p_encoder_select="h263_encoder"
1794 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1795 h264_decoder_suggest="error_resilience"
1796 huffyuv_decoder_select="dsputil"
1797 huffyuv_encoder_select="dsputil huffman"
1798 iac_decoder_select="dsputil fft mdct sinewin"
1799 imc_decoder_select="dsputil fft mdct sinewin"
1800 indeo3_decoder_select="hpeldsp"
1801 interplay_video_decoder_select="hpeldsp"
1802 jpegls_decoder_select="dsputil golomb hpeldsp"
1803 jpegls_encoder_select="golomb"
1804 jv_decoder_select="dsputil"
1805 lagarith_decoder_select="dsputil"
1806 ljpeg_encoder_select="aandcttables mpegvideoenc"
1807 loco_decoder_select="golomb"
1808 mdec_decoder_select="dsputil error_resilience mpegvideo"
1809 mimic_decoder_select="dsputil hpeldsp"
1810 mjpeg_decoder_select="dsputil hpeldsp"
1811 mjpegb_decoder_select="dsputil hpeldsp"
1812 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1813 mlp_decoder_select="dsputil mlp_parser"
1814 motionpixels_decoder_select="dsputil"
1815 mp1_decoder_select="mpegaudio"
1816 mp1float_decoder_select="mpegaudio"
1817 mp2_decoder_select="mpegaudio"
1818 mp2float_decoder_select="mpegaudio"
1819 mp3_decoder_select="mpegaudio"
1820 mp3adu_decoder_select="mpegaudio"
1821 mp3adufloat_decoder_select="mpegaudio"
1822 mp3float_decoder_select="mpegaudio"
1823 mp3on4_decoder_select="mpegaudio"
1824 mp3on4float_decoder_select="mpegaudio"
1825 mpc7_decoder_select="dsputil mpegaudiodsp"
1826 mpc8_decoder_select="dsputil mpegaudiodsp"
1827 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1828 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1829 mpeg1video_decoder_select="error_resilience mpegvideo"
1830 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1831 mpeg2video_decoder_select="error_resilience mpegvideo"
1832 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1833 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1834 mpeg4_encoder_select="h263_encoder"
1835 msmpeg4v1_decoder_select="h263_decoder"
1836 msmpeg4v2_decoder_select="h263_decoder"
1837 msmpeg4v2_encoder_select="h263_encoder"
1838 msmpeg4v3_decoder_select="h263_decoder"
1839 msmpeg4v3_encoder_select="h263_encoder"
1840 mss2_decoder_select="error_resilience vc1_decoder"
1841 mxpeg_decoder_select="dsputil hpeldsp"
1842 nellymoser_decoder_select="mdct sinewin"
1843 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1844 nuv_decoder_select="dsputil lzo"
1845 png_decoder_select="zlib"
1846 png_encoder_select="dsputil zlib"
1847 prores_decoder_select="dsputil"
1848 prores_encoder_select="dsputil"
1849 qcelp_decoder_select="lsp"
1850 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1851 ra_144_encoder_select="audio_frame_queue lpc"
1852 ralf_decoder_select="golomb"
1853 rtjpeg_decoder_select="dsputil"
1854 rv10_decoder_select="error_resilience h263_decoder"
1855 rv10_encoder_select="h263_encoder"
1856 rv20_decoder_select="error_resilience h263_decoder"
1857 rv20_encoder_select="h263_encoder"
1858 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1859 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1860 shorten_decoder_select="golomb"
1861 sipr_decoder_select="lsp"
1862 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1863 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1864 sonic_decoder_select="golomb"
1865 sonic_encoder_select="golomb"
1866 sonic_ls_encoder_select="golomb"
1867 sp5x_decoder_select="dsputil hpeldsp"
1868 svq1_decoder_select="hpeldsp"
1869 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1870 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1871 svq3_decoder_suggest="error_resilience zlib"
1872 tak_decoder_select="dsputil"
1873 theora_decoder_select="vp3_decoder"
1874 tiff_decoder_suggest="zlib"
1875 tiff_encoder_suggest="zlib"
1876 thp_decoder_select="dsputil hpeldsp"
1877 truehd_decoder_select="mlp_parser"
1878 truemotion2_decoder_select="dsputil"
1879 truespeech_decoder_select="dsputil"
1880 tscc_decoder_select="zlib"
1881 twinvq_decoder_select="mdct lsp sinewin"
1882 utvideo_decoder_select="dsputil"
1883 utvideo_encoder_select="dsputil huffman"
1884 vble_decoder_select="dsputil"
1885 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1886 vc1image_decoder_select="vc1_decoder"
1887 vorbis_decoder_select="mdct"
1888 vorbis_encoder_select="mdct"
1889 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1890 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1891 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1892 vp6a_decoder_select="vp6_decoder"
1893 vp6f_decoder_select="vp6_decoder"
1894 vp8_decoder_select="h264pred videodsp"
1895 webp_decoder_select="vp8_decoder"
1896 wmapro_decoder_select="mdct sinewin"
1897 wmav1_decoder_select="mdct sinewin"
1898 wmav1_encoder_select="mdct sinewin"
1899 wmav2_decoder_select="mdct sinewin"
1900 wmav2_encoder_select="mdct sinewin"
1901 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1902 wmv1_decoder_select="h263_decoder"
1903 wmv1_encoder_select="h263_encoder"
1904 wmv2_decoder_select="h263_decoder videodsp"
1905 wmv2_encoder_select="h263_encoder"
1906 wmv3_decoder_select="vc1_decoder"
1907 wmv3image_decoder_select="wmv3_decoder"
1908 zerocodec_decoder_select="zlib"
1909 zlib_decoder_select="zlib"
1910 zlib_encoder_select="zlib"
1911 zmbv_decoder_select="zlib"
1912 zmbv_encoder_select="zlib"
1913
1914 # hardware accelerators
1915 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1916 dxva2_deps="dxva2api_h"
1917 vaapi_deps="va_va_h"
1918 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1919 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1920 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1921
1922 h263_vaapi_hwaccel_deps="vaapi"
1923 h263_vaapi_hwaccel_select="h263_decoder"
1924 h263_vdpau_hwaccel_deps="vdpau"
1925 h263_vdpau_hwaccel_select="h263_decoder"
1926 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1927 h264_dxva2_hwaccel_deps="dxva2"
1928 h264_dxva2_hwaccel_select="h264_decoder"
1929 h264_vaapi_hwaccel_deps="vaapi"
1930 h264_vaapi_hwaccel_select="h264_decoder"
1931 h264_vda_decoder_deps="vda"
1932 h264_vda_decoder_select="h264_decoder"
1933 h264_vda_hwaccel_deps="vda"
1934 h264_vda_hwaccel_select="h264_decoder"
1935 h264_vdpau_hwaccel_deps="vdpau"
1936 h264_vdpau_hwaccel_select="h264_decoder"
1937 mpeg1_vdpau_hwaccel_deps="vdpau"
1938 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1939 mpeg2_crystalhd_decoder_select="crystalhd"
1940 mpeg2_dxva2_hwaccel_deps="dxva2"
1941 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1942 mpeg2_vaapi_hwaccel_deps="vaapi"
1943 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1944 mpeg2_vdpau_hwaccel_deps="vdpau"
1945 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1946 mpeg4_crystalhd_decoder_select="crystalhd"
1947 mpeg4_vaapi_hwaccel_deps="vaapi"
1948 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1949 mpeg4_vdpau_hwaccel_deps="vdpau"
1950 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1951 msmpeg4_crystalhd_decoder_select="crystalhd"
1952 vc1_crystalhd_decoder_select="crystalhd"
1953 vc1_dxva2_hwaccel_deps="dxva2"
1954 vc1_dxva2_hwaccel_select="vc1_decoder"
1955 vc1_vaapi_hwaccel_deps="vaapi"
1956 vc1_vaapi_hwaccel_select="vc1_decoder"
1957 vc1_vdpau_hwaccel_deps="vdpau"
1958 vc1_vdpau_hwaccel_select="vc1_decoder"
1959 wmv3_crystalhd_decoder_select="crystalhd"
1960 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1961 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1962 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1963
1964 # parsers
1965 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1966 mpeg4video_parser_select="error_resilience mpegvideo"
1967 mpegvideo_parser_select="error_resilience mpegvideo"
1968 vc1_parser_select="mpegvideo"
1969
1970 # external libraries
1971 libaacplus_encoder_deps="libaacplus"
1972 libcelt_decoder_deps="libcelt"
1973 libfaac_encoder_deps="libfaac"
1974 libfaac_encoder_select="audio_frame_queue"
1975 libfdk_aac_encoder_deps="libfdk_aac"
1976 libfdk_aac_encoder_select="audio_frame_queue"
1977 libgme_demuxer_deps="libgme"
1978 libgsm_decoder_deps="libgsm"
1979 libgsm_encoder_deps="libgsm"
1980 libgsm_ms_decoder_deps="libgsm"
1981 libgsm_ms_encoder_deps="libgsm"
1982 libilbc_decoder_deps="libilbc"
1983 libilbc_encoder_deps="libilbc"
1984 libmodplug_demuxer_deps="libmodplug"
1985 libmp3lame_encoder_deps="libmp3lame"
1986 libmp3lame_encoder_select="audio_frame_queue"
1987 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1988 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1989 libopencore_amrnb_encoder_select="audio_frame_queue"
1990 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1991 libopenjpeg_decoder_deps="libopenjpeg"
1992 libopenjpeg_encoder_deps="libopenjpeg"
1993 libopus_decoder_deps="libopus"
1994 libopus_encoder_deps="libopus"
1995 libopus_encoder_select="audio_frame_queue"
1996 libquvi_demuxer_deps="libquvi"
1997 libschroedinger_decoder_deps="libschroedinger"
1998 libschroedinger_encoder_deps="libschroedinger"
1999 libshine_encoder_deps="libshine"
2000 libshine_encoder_select="audio_frame_queue"
2001 libspeex_decoder_deps="libspeex"
2002 libspeex_encoder_deps="libspeex"
2003 libspeex_encoder_select="audio_frame_queue"
2004 libstagefright_h264_decoder_deps="libstagefright_h264"
2005 libtheora_encoder_deps="libtheora"
2006 libtwolame_encoder_deps="libtwolame"
2007 libvo_aacenc_encoder_deps="libvo_aacenc"
2008 libvo_aacenc_encoder_select="audio_frame_queue"
2009 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2010 libvorbis_decoder_deps="libvorbis"
2011 libvorbis_encoder_deps="libvorbis"
2012 libvorbis_encoder_select="audio_frame_queue"
2013 libvpx_vp8_decoder_deps="libvpx"
2014 libvpx_vp8_encoder_deps="libvpx"
2015 libvpx_vp9_decoder_deps="libvpx"
2016 libvpx_vp9_encoder_deps="libvpx"
2017 libwavpack_encoder_deps="libwavpack"
2018 libx264_encoder_deps="libx264"
2019 libx264rgb_encoder_deps="libx264"
2020 libxavs_encoder_deps="libxavs"
2021 libxvid_encoder_deps="libxvid"
2022 libutvideo_decoder_deps="libutvideo"
2023 libutvideo_encoder_deps="libutvideo"
2024
2025 # demuxers / muxers
2026 ac3_demuxer_select="ac3_parser"
2027 asf_stream_muxer_select="asf_muxer"
2028 avisynth_demuxer_deps="avisynth"
2029 dirac_demuxer_select="dirac_parser"
2030 dts_demuxer_select="dca_parser"
2031 dtshd_demuxer_select="dca_parser"
2032 eac3_demuxer_select="ac3_parser"
2033 f4v_muxer_select="mov_muxer"
2034 flac_demuxer_select="flac_parser"
2035 ipod_muxer_select="mov_muxer"
2036 ismv_muxer_select="mov_muxer"
2037 libnut_demuxer_deps="libnut"
2038 libnut_muxer_deps="libnut"
2039 matroska_audio_muxer_select="matroska_muxer"
2040 matroska_demuxer_suggest="bzlib lzo zlib"
2041 mov_demuxer_suggest="zlib"
2042 mov_muxer_select="rtpenc_chain"
2043 mp3_demuxer_select="mpegaudio_parser"
2044 mp4_muxer_select="mov_muxer"
2045 mpegts_muxer_select="adts_muxer latm_muxer"
2046 mpegtsraw_demuxer_select="mpegts_demuxer"
2047 mxf_d10_muxer_select="mxf_muxer"
2048 ogg_demuxer_select="golomb"
2049 psp_muxer_select="mov_muxer"
2050 rtp_demuxer_select="sdp_demuxer"
2051 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2052 rtsp_demuxer_select="http_protocol rtpdec"
2053 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2054 sap_demuxer_select="sdp_demuxer"
2055 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2056 sdp_demuxer_select="rtpdec"
2057 smoothstreaming_muxer_select="ismv_muxer"
2058 spdif_muxer_select="aac_parser"
2059 tak_demuxer_select="tak_parser"
2060 tg2_muxer_select="mov_muxer"
2061 tgp_muxer_select="mov_muxer"
2062 vobsub_demuxer_select="mpegps_demuxer"
2063 w64_demuxer_deps="wav_demuxer"
2064 w64_muxer_deps="wav_muxer"
2065
2066 # indevs / outdevs
2067 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2068 alsa_outdev_deps="alsa_asoundlib_h"
2069 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2070 caca_outdev_deps="libcaca"
2071 dshow_indev_deps="IBaseFilter"
2072 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2073 dv1394_indev_deps="dv1394 dv_demuxer"
2074 fbdev_indev_deps="linux_fb_h"
2075 iec61883_indev_deps="libiec61883"
2076 jack_indev_deps="jack_jack_h sem_timedwait"
2077 lavfi_indev_deps="avfilter"
2078 libcdio_indev_deps="libcdio"
2079 libdc1394_indev_deps="libdc1394"
2080 libv4l2_indev_deps="libv4l2"
2081 openal_indev_deps="openal"
2082 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2083 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2084 pulse_indev_deps="libpulse"
2085 sdl_outdev_deps="sdl"
2086 sndio_indev_deps="sndio_h"
2087 sndio_outdev_deps="sndio_h"
2088 v4l_indev_deps="linux_videodev_h"
2089 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2090 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2091 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2092 vfwcap_indev_extralibs="-lavicap32"
2093 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2094 xv_outdev_extralibs="-lXv -lX11 -lXext"
2095 x11grab_indev_deps="x11grab"
2096
2097 # protocols
2098 bluray_protocol_deps="libbluray"
2099 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2100 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2101 ffrtmpcrypt_protocol_select="tcp_protocol"
2102 ffrtmphttp_protocol_deps="!librtmp_protocol"
2103 ffrtmphttp_protocol_select="http_protocol"
2104 ftp_protocol_select="tcp_protocol"
2105 gopher_protocol_select="network"
2106 httpproxy_protocol_select="tcp_protocol"
2107 http_protocol_select="tcp_protocol"
2108 https_protocol_select="tls_protocol"
2109 librtmp_protocol_deps="librtmp"
2110 librtmpe_protocol_deps="librtmp"
2111 librtmps_protocol_deps="librtmp"
2112 librtmpt_protocol_deps="librtmp"
2113 librtmpte_protocol_deps="librtmp"
2114 mmsh_protocol_select="http_protocol"
2115 mmst_protocol_select="network"
2116 rtmp_protocol_deps="!librtmp_protocol"
2117 rtmp_protocol_select="tcp_protocol"
2118 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2119 rtmps_protocol_deps="!librtmp_protocol"
2120 rtmps_protocol_select="tls_protocol"
2121 rtmpt_protocol_select="ffrtmphttp_protocol"
2122 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2123 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2124 rtp_protocol_select="udp_protocol"
2125 sctp_protocol_deps="struct_sctp_event_subscribe"
2126 sctp_protocol_select="network"
2127 srtp_protocol_select="rtp_protocol"
2128 tcp_protocol_select="network"
2129 tls_protocol_deps_any="openssl gnutls"
2130 tls_protocol_select="tcp_protocol"
2131 udp_protocol_select="network"
2132 unix_protocol_deps="sys_un_h"
2133 unix_protocol_select="network"
2134
2135 # filters
2136 aconvert_filter_deps="swresample"
2137 amovie_filter_deps="avcodec avformat"
2138 aresample_filter_deps="swresample"
2139 ass_filter_deps="libass"
2140 asyncts_filter_deps="avresample"
2141 atempo_filter_deps="avcodec rdft"
2142 azmq_filter_deps="libzmq"
2143 blackframe_filter_deps="gpl"
2144 boxblur_filter_deps="gpl"
2145 colormatrix_filter_deps="gpl"
2146 cropdetect_filter_deps="gpl"
2147 dctdnoiz_filter_deps="avcodec fft"
2148 delogo_filter_deps="gpl"
2149 deshake_filter_deps="avcodec"
2150 deshake_filter_select="dsputil"
2151 drawtext_filter_deps="libfreetype"
2152 ebur128_filter_deps="gpl"
2153 flite_filter_deps="libflite"
2154 frei0r_filter_deps="frei0r dlopen"
2155 frei0r_filter_extralibs='$ldl'
2156 frei0r_src_filter_deps="frei0r dlopen"
2157 frei0r_src_filter_extralibs='$ldl'
2158 geq_filter_deps="gpl"
2159 histeq_filter_deps="gpl"
2160 hqdn3d_filter_deps="gpl"
2161 hue_filter_deps="gpl"
2162 interlace_filter_deps="gpl"
2163 kerndeint_filter_deps="gpl"
2164 mcdeint_filter_deps="avcodec gpl"
2165 movie_filter_deps="avcodec avformat"
2166 mp_filter_deps="gpl avcodec swscale inline_asm"
2167 mpdecimate_filter_deps="gpl avcodec"
2168 mptestsrc_filter_deps="gpl"
2169 negate_filter_deps="lut_filter"
2170 noise_filter_deps="gpl"
2171 perspective_filter_deps="gpl"
2172 resample_filter_deps="avresample"
2173 ocv_filter_deps="libopencv"
2174 owdenoise_filter_deps="gpl"
2175 pan_filter_deps="swresample"
2176 pp_filter_deps="gpl postproc"
2177 removelogo_filter_deps="avcodec avformat swscale"
2178 sab_filter_deps="gpl swscale"
2179 scale_filter_deps="swscale"
2180 smartblur_filter_deps="gpl swscale"
2181 showspectrum_filter_deps="avcodec rdft"
2182 spp_filter_deps="gpl avcodec fft"
2183 stereo3d_filter_deps="gpl"
2184 subtitles_filter_deps="avformat avcodec libass"
2185 super2xsai_filter_deps="gpl"
2186 tinterlace_filter_deps="gpl"
2187 vidstabdetect_filter_deps="libvidstab"
2188 vidstabtransform_filter_deps="libvidstab"
2189 yadif_filter_deps="gpl"
2190 pixfmts_super2xsai_test_deps="super2xsai_filter"
2191 tinterlace_merge_test_deps="tinterlace_filter"
2192 tinterlace_pad_test_deps="tinterlace_filter"
2193 zmq_filter_deps="libzmq"
2194
2195 # libraries
2196 avcodec_deps="avutil"
2197 avdevice_deps="avutil avcodec avformat"
2198 avfilter_deps="avutil"
2199 avformat_deps="avutil avcodec"
2200 avresample_deps="avutil"
2201 postproc_deps="avutil gpl"
2202 swscale_deps="avutil"
2203
2204 # programs
2205 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2206 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2207                null_filter
2208                setpts_filter trim_filter"
2209 ffplay_deps="avcodec avformat swscale swresample sdl"
2210 ffplay_select="rdft crop_filter"
2211 ffprobe_deps="avcodec avformat"
2212 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer sarestart"
2213 ffserver_extralibs='$ldl'
2214
2215 # documentation
2216 podpages_deps="perl"
2217 manpages_deps="perl pod2man"
2218 htmlpages_deps="texi2html"
2219 txtpages_deps="makeinfo"
2220 doc_deps_any="manpages htmlpages podpages txtpages"
2221
2222 # default parameters
2223
2224 logfile="config.log"
2225
2226 # installation paths
2227 prefix_default="/usr/local"
2228 bindir_default='${prefix}/bin'
2229 datadir_default='${prefix}/share/ffmpeg'
2230 incdir_default='${prefix}/include'
2231 libdir_default='${prefix}/lib'
2232 mandir_default='${prefix}/share/man'
2233 shlibdir_default="$libdir_default"
2234
2235 # toolchain
2236 ar_default="ar"
2237 cc_default="gcc"
2238 cxx_default="g++"
2239 host_cc_default="gcc"
2240 cp_f="cp -f"
2241 install="install"
2242 ln_s="ln -s -f"
2243 nm_default="nm -g"
2244 objformat="elf"
2245 pkg_config_default=pkg-config
2246 ranlib="ranlib"
2247 strip_default="strip"
2248 yasmexe_default="yasm"
2249
2250 nogas=":"
2251
2252 # machine
2253 arch_default=$(uname -m)
2254 cpu="generic"
2255
2256 # OS
2257 target_os_default=$(tolower $(uname -s))
2258 host_os=$target_os_default
2259
2260 # configurable options
2261 enable $PROGRAM_LIST
2262 enable $DOCUMENT_LIST
2263 enable $(filter_out avresample $LIBRARY_LIST)
2264 enable stripping
2265
2266 enable asm
2267 enable debug
2268 enable doc
2269 enable optimizations
2270 enable runtime_cpudetect
2271 enable safe_bitstream_reader
2272 enable static
2273 enable swscale_alpha
2274
2275 # Enable hwaccels by default.
2276 enable dxva2 vaapi vdpau
2277
2278 # build settings
2279 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2280 LIBPREF="lib"
2281 LIBSUF=".a"
2282 FULLNAME='$(NAME)$(BUILDSUF)'
2283 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2284 SLIBPREF="lib"
2285 SLIBSUF=".so"
2286 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2287 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2288 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2289 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2290 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2291 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2292
2293 asflags_filter=echo
2294 cflags_filter=echo
2295 ldflags_filter=echo
2296
2297 AS_C='-c'
2298 AS_O='-o $@'
2299 CC_C='-c'
2300 CC_E='-E -o $@'
2301 CC_O='-o $@'
2302 CXX_C='-c'
2303 CXX_O='-o $@'
2304 LD_O='-o $@'
2305 LD_LIB='-l%'
2306 LD_PATH='-L'
2307 HOSTCC_C='-c'
2308 HOSTCC_O='-o $@'
2309 HOSTLD_O='-o $@'
2310
2311 host_cflags='-O3 -g'
2312 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2313 host_libs='-lm'
2314 host_cflags_filter=echo
2315 host_ldflags_filter=echo
2316
2317 target_path='$(CURDIR)'
2318
2319 # since the object filename is not given with the -MM flag, the compiler
2320 # is only able to print the basename, and we must add the path ourselves
2321 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2322 DEPFLAGS='-MM'
2323
2324 # find source path
2325 if test -f configure; then
2326     source_path=.
2327 else
2328     source_path=$(cd $(dirname "$0"); pwd)
2329     echo "$source_path" | grep -q '[[:blank:]]' &&
2330         die "Out of tree builds are impossible with whitespace in source path."
2331     test -e "$source_path/config.h" &&
2332         die "Out of tree builds are impossible with config.h in source dir."
2333 fi
2334
2335 for v in "$@"; do
2336     r=${v#*=}
2337     l=${v%"$r"}
2338     r=$(sh_quote "$r")
2339     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2340 done
2341
2342 find_things(){
2343     thing=$1
2344     pattern=$2
2345     file=$source_path/$3
2346     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2347 }
2348
2349 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2350 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2351 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2352 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2353 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2354 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2355 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2356 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2357 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2358 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2359 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2360
2361 ALL_COMPONENTS="
2362     $BSF_LIST
2363     $DECODER_LIST
2364     $DEMUXER_LIST
2365     $ENCODER_LIST
2366     $FILTER_LIST
2367     $HWACCEL_LIST
2368     $INDEV_LIST
2369     $MUXER_LIST
2370     $OUTDEV_LIST
2371     $PARSER_LIST
2372     $PROTOCOL_LIST
2373 "
2374
2375 for n in $COMPONENT_LIST; do
2376     v=$(toupper ${n%s})_LIST
2377     eval enable \$$v
2378     eval ${n}_if_any="\$$v"
2379 done
2380
2381 enable $ARCH_EXT_LIST
2382
2383 die_unknown(){
2384     echo "Unknown option \"$1\"."
2385     echo "See $0 --help for available options."
2386     exit 1
2387 }
2388
2389 print_3_columns() {
2390     cat | tr ' ' '\n' | sort | pr -r -3 -t
2391 }
2392
2393 show_list() {
2394     suffix=_$1
2395     shift
2396     echo $* | sed s/$suffix//g | print_3_columns
2397     exit 0
2398 }
2399
2400 rand_list(){
2401     IFS=', '
2402     set -- $*
2403     unset IFS
2404     for thing; do
2405         comp=${thing%:*}
2406         prob=${thing#$comp}
2407         prob=${prob#:}
2408         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2409         echo "prob ${prob:-0.5}"
2410         printf '%s\n' $comp
2411     done
2412 }
2413
2414 do_random(){
2415     action=$1
2416     shift
2417     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2418     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2419 }
2420
2421 for opt do
2422     optval="${opt#*=}"
2423     case "$opt" in
2424         --extra-ldflags=*)
2425             add_ldflags $optval
2426         ;;
2427         --extra-libs=*)
2428             add_extralibs $optval
2429         ;;
2430         --disable-devices)
2431             disable $INDEV_LIST $OUTDEV_LIST
2432         ;;
2433         --enable-debug=*)
2434             debuglevel="$optval"
2435         ;;
2436         --disable-programs)
2437             disable $PROGRAM_LIST
2438         ;;
2439         --disable-everything)
2440             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2441         ;;
2442         --disable-all)
2443             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2444             disable $LIBRARY_LIST $PROGRAM_LIST doc
2445         ;;
2446         --enable-random|--disable-random)
2447             action=${opt%%-random}
2448             do_random ${action#--} $COMPONENT_LIST
2449         ;;
2450         --enable-random=*|--disable-random=*)
2451             action=${opt%%-random=*}
2452             do_random ${action#--} $optval
2453         ;;
2454         --enable-*=*|--disable-*=*)
2455             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2456             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2457             eval list=\$$(toupper $thing)_LIST
2458             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2459             list=$(filter "$name" $list)
2460             [ "$list" = "" ] && warn "Option $opt did not match anything"
2461             $action $list
2462         ;;
2463         --enable-?*|--disable-?*)
2464             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2465             if is_in $option $COMPONENT_LIST; then
2466                 test $action = disable && action=unset
2467                 eval $action \$$(toupper ${option%s})_LIST
2468             elif is_in $option $CMDLINE_SELECT; then
2469                 $action $option
2470             else
2471                 die_unknown $opt
2472             fi
2473         ;;
2474         --list-*)
2475             NAME="${opt#--list-}"
2476             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2477             NAME=${NAME%s}
2478             eval show_list $NAME \$$(toupper $NAME)_LIST
2479         ;;
2480         --help|-h) show_help
2481         ;;
2482         --fatal-warnings) enable fatal_warnings
2483         ;;
2484         *)
2485             optname="${opt%%=*}"
2486             optname="${optname#--}"
2487             optname=$(echo "$optname" | sed 's/-/_/g')
2488             if is_in $optname $CMDLINE_SET; then
2489                 eval $optname='$optval'
2490             elif is_in $optname $CMDLINE_APPEND; then
2491                 append $optname "$optval"
2492             else
2493                 die_unknown $opt
2494             fi
2495         ;;
2496     esac
2497 done
2498
2499 disabled logging && logfile=/dev/null
2500
2501 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2502 set >> $logfile
2503
2504 test -n "$cross_prefix" && enable cross_compile
2505
2506 if enabled cross_compile; then
2507     test -n "$arch" && test -n "$target_os" ||
2508         die "Must specify target arch and OS when cross-compiling"
2509 fi
2510
2511 ar_default="${cross_prefix}${ar_default}"
2512 cc_default="${cross_prefix}${cc_default}"
2513 cxx_default="${cross_prefix}${cxx_default}"
2514 nm_default="${cross_prefix}${nm_default}"
2515 pkg_config_default="${cross_prefix}${pkg_config_default}"
2516 ranlib="${cross_prefix}${ranlib}"
2517 strip_default="${cross_prefix}${strip_default}"
2518
2519 sysinclude_default="${sysroot}/usr/include"
2520
2521 test -n "$valgrind" && toolchain="valgrind-memcheck"
2522
2523 case "$toolchain" in
2524     clang-asan)
2525         cc_default="clang"
2526         add_cflags  -fsanitize=address
2527         add_ldflags -fsanitize=address
2528     ;;
2529     clang-tsan)
2530         cc_default="clang"
2531         add_cflags  -fsanitize=thread -pie
2532         add_ldflags -fsanitize=thread -pie
2533     ;;
2534     gcc-asan)
2535         cc_default="gcc"
2536         add_cflags  -fsanitize=address
2537         add_ldflags -fsanitize=address
2538     ;;
2539     gcc-tsan)
2540         cc_default="gcc"
2541         add_cflags  -fsanitize=thread -pie -fPIC
2542         add_ldflags -fsanitize=thread -pie -fPIC
2543     ;;
2544     valgrind-massif)
2545         target_exec_default=${valgrind:-"valgrind"}
2546         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2547     ;;
2548     valgrind-memcheck)
2549         target_exec_default=${valgrind:-"valgrind"}
2550         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2551     ;;
2552     msvc)
2553         cc_default="c99wrap cl"
2554         ld_default="c99wrap link"
2555         nm_default="dumpbin -symbols"
2556         ar_default="lib"
2557         target_os_default="win32"
2558     ;;
2559     icl)
2560         cc_default="c99wrap -noconv icl"
2561         ld_default="c99wrap xilink"
2562         nm_default="dumpbin -symbols"
2563         ar_default="xilib"
2564         target_os_default="win32"
2565     ;;
2566     gcov)
2567         add_cflags  -fprofile-arcs -ftest-coverage
2568         add_ldflags -fprofile-arcs -ftest-coverage
2569     ;;
2570     ?*)
2571         die "Unknown toolchain $toolchain"
2572     ;;
2573 esac
2574
2575 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2576 enabled cross_compile || host_cc_default=$cc
2577 set_default host_cc
2578
2579 if ! $pkg_config --version >/dev/null 2>&1; then
2580     warn "$pkg_config not found, library detection may fail."
2581     pkg_config=false
2582 fi
2583
2584 exesuf() {
2585     case $1 in
2586         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2587     esac
2588 }
2589
2590 EXESUF=$(exesuf $target_os)
2591 HOSTEXESUF=$(exesuf $host_os)
2592
2593 # set temporary file name
2594 : ${TMPDIR:=$TEMPDIR}
2595 : ${TMPDIR:=$TMP}
2596 : ${TMPDIR:=/tmp}
2597
2598 if ! check_cmd mktemp -u XXXXXX; then
2599     # simple replacement for missing mktemp
2600     # NOT SAFE FOR GENERAL USE
2601     mktemp(){
2602         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2603     }
2604 fi
2605
2606 tmpfile(){
2607     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2608         (set -C; exec > $tmp) 2>/dev/null ||
2609         die "Unable to create temporary file in $TMPDIR."
2610     append TMPFILES $tmp
2611     eval $1=$tmp
2612 }
2613
2614 trap 'rm -f -- $TMPFILES' EXIT
2615
2616 tmpfile TMPASM .asm
2617 tmpfile TMPC   .c
2618 tmpfile TMPCPP .cpp
2619 tmpfile TMPE   $EXESUF
2620 tmpfile TMPH   .h
2621 tmpfile TMPO   .o
2622 tmpfile TMPS   .S
2623 tmpfile TMPSH  .sh
2624 tmpfile TMPV   .ver
2625
2626 unset -f mktemp
2627
2628 chmod +x $TMPE
2629
2630 # make sure we can execute files in $TMPDIR
2631 cat > $TMPSH 2>> $logfile <<EOF
2632 #! /bin/sh
2633 EOF
2634 chmod +x $TMPSH >> $logfile 2>&1
2635 if ! $TMPSH >> $logfile 2>&1; then
2636     cat <<EOF
2637 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2638 variable to another directory and make sure that it is not mounted noexec.
2639 EOF
2640     die "Sanity test failed."
2641 fi
2642
2643 ccc_flags(){
2644     for flag; do
2645         case $flag in
2646             -std=c99)           echo -c99                       ;;
2647             -mcpu=*)            echo -arch ${flag#*=}           ;;
2648             -mieee)             echo -ieee                      ;;
2649             -O*|-fast)          echo $flag                      ;;
2650             -fno-math-errno)    echo -assume nomath_errno       ;;
2651             -g)                 echo -g3                        ;;
2652             -Wall)              echo -msg_enable level2         ;;
2653             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2654             -Wl,*)              echo $flag                      ;;
2655             -f*|-W*)                                            ;;
2656             *)                  echo $flag                      ;;
2657         esac
2658    done
2659 }
2660
2661 msvc_common_flags(){
2662     for flag; do
2663         case $flag in
2664             # In addition to specifying certain flags under the compiler
2665             # specific filters, they must be specified here as well or else the
2666             # generic catch all at the bottom will print the original flag.
2667             -Wall)                ;;
2668             -std=c99)             ;;
2669             # Common flags
2670             -fomit-frame-pointer) ;;
2671             -g)                   echo -Z7 ;;
2672             -fno-math-errno)      ;;
2673             -fno-common)          ;;
2674             -fno-signed-zeros)    ;;
2675             -fPIC)                ;;
2676             -mthumb)              ;;
2677             -march=*)             ;;
2678             -lz)                  echo zlib.lib ;;
2679             -lavifil32)           echo vfw32.lib ;;
2680             -lavicap32)           echo vfw32.lib user32.lib ;;
2681             -l*)                  echo ${flag#-l}.lib ;;
2682             *)                    echo $flag ;;
2683         esac
2684     done
2685 }
2686
2687 msvc_flags(){
2688     msvc_common_flags "$@"
2689     for flag; do
2690         case $flag in
2691             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2692                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2693                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2694                                        -wd4554 \
2695                                        -wd4996 -wd4273 ;;
2696         esac
2697     done
2698 }
2699
2700 icl_flags(){
2701     msvc_common_flags "$@"
2702     for flag; do
2703         case $flag in
2704             # Despite what Intel's documentation says -Wall, which is supported
2705             # on Windows, does enable remarks so disable them here.
2706             -Wall)                echo $flag -Qdiag-disable:remark ;;
2707             -std=c99)             echo -Qstd=c99 ;;
2708         esac
2709     done
2710 }
2711
2712 pgi_flags(){
2713     for flag; do
2714         case $flag in
2715             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2716             -fomit-frame-pointer) echo -Mnoframe ;;
2717             -g)                   echo -gopt ;;
2718             *)                    echo $flag ;;
2719         esac
2720     done
2721 }
2722
2723 suncc_flags(){
2724     for flag; do
2725         case $flag in
2726             -march=*|-mcpu=*)
2727                 case "${flag#*=}" in
2728                     native)                   echo -xtarget=native       ;;
2729                     v9|niagara)               echo -xarch=sparc          ;;
2730                     ultrasparc)               echo -xarch=sparcvis       ;;
2731                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2732                     i586|pentium)             echo -xchip=pentium        ;;
2733                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2734                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2735                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2736                     pentium4*)          echo -xtarget=pentium4           ;;
2737                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2738                     *-sse3)             echo -xarch=sse3                 ;;
2739                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2740                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2741                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2742                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2743                     bdver*)                    echo -xarch=avx           ;;
2744                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2745                     k8|opteron|athlon64|athlon-fx)
2746                                                echo -xarch=sse2a         ;;
2747                     athlon*)                   echo -xarch=pentium_proa  ;;
2748                 esac
2749                 ;;
2750             -std=c99)             echo -xc99              ;;
2751             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2752             -fPIC)                echo -KPIC -xcode=pic32 ;;
2753             -W*,*)                echo $flag              ;;
2754             -f*-*|-W*|-mimpure-text)                      ;;
2755             -shared)              echo -G                 ;;
2756             *)                    echo $flag              ;;
2757         esac
2758     done
2759 }
2760
2761 tms470_flags(){
2762     for flag; do
2763         case $flag in
2764             -march=*|-mcpu=*)
2765                 case "${flag#*=}" in
2766                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2767                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2768                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2769                     armv6*|arm11*)          echo -mv=6   ;;
2770                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2771                                             echo -mv=5e  ;;
2772                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2773                 esac
2774                 ;;
2775             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2776             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2777             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2778             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2779             -msoft-float)   echo --float_support=vfplib       ;;
2780             -O[0-3]|-mf=*)  echo $flag                        ;;
2781             -g)             echo -g -mn                       ;;
2782             -pds=*)         echo $flag                        ;;
2783             -D*|-I*)        echo $flag                        ;;
2784             --gcc|--abi=*)  echo $flag                        ;;
2785             -me)            echo $flag                        ;;
2786         esac
2787     done
2788 }
2789
2790 probe_cc(){
2791     pfx=$1
2792     _cc=$2
2793
2794     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2795     unset _ld_o _ldflags _ld_lib _ld_path
2796     unset _depflags _DEPCMD _DEPFLAGS
2797     _flags_filter=echo
2798
2799     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2800         _type=llvm_gcc
2801         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2802         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2803         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2804         _cflags_speed='-O3'
2805         _cflags_size='-Os'
2806     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2807         _type=gcc
2808         gcc_version=$($_cc --version | head -n1)
2809         gcc_basever=$($_cc -dumpversion)
2810         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2811         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2812         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2813         if ! $_cc -dumpversion | grep -q '^2\.'; then
2814             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2815         fi
2816         _cflags_speed='-O3'
2817         _cflags_size='-Os'
2818     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2819         _type=icc
2820         _ident=$($_cc --version | head -n1)
2821         _depflags='-MMD'
2822         _cflags_speed='-O3'
2823         _cflags_size='-Os'
2824         _cflags_noopt='-O1'
2825     elif $_cc -v 2>&1 | grep -q xlc; then
2826         _type=xlc
2827         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2828         _cflags_speed='-O5'
2829         _cflags_size='-O5 -qcompact'
2830     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2831         _type=ccc
2832         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2833         _DEPFLAGS='-M'
2834         _cflags_speed='-fast'
2835         _cflags_size='-O1'
2836         _flags_filter=ccc_flags
2837     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2838         test -d "$sysroot" || die "No valid sysroot specified."
2839         _type=armcc
2840         _ident=$($_cc --vsn | head -n1)
2841         armcc_conf="$PWD/armcc.conf"
2842         $_cc --arm_linux_configure                 \
2843              --arm_linux_config_file="$armcc_conf" \
2844              --configure_sysroot="$sysroot"        \
2845              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2846              die "Error creating armcc configuration file."
2847         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2848         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2849         as_default="${cross_prefix}gcc"
2850         _depflags='-MMD'
2851         _cflags_speed='-O3'
2852         _cflags_size='-Os'
2853     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2854         _type=tms470
2855         _ident=$($_cc -version | head -n1 | tr -s ' ')
2856         _flags='--gcc --abi=eabi -me'
2857         _cc_e='-ppl -fe=$@'
2858         _cc_o='-fe=$@'
2859         _depflags='-ppa -ppd=$(@:.o=.d)'
2860         _cflags_speed='-O3 -mf=5'
2861         _cflags_size='-O3 -mf=2'
2862         _flags_filter=tms470_flags
2863     elif $_cc -v 2>&1 | grep -q clang; then
2864         _type=clang
2865         _ident=$($_cc --version | head -n1)
2866         _depflags='-MMD'
2867         _cflags_speed='-O3'
2868         _cflags_size='-Os'
2869     elif $_cc -V 2>&1 | grep -q Sun; then
2870         _type=suncc
2871         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2872         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2873         _DEPFLAGS='-xM1 -xc99'
2874         _ldflags='-std=c99'
2875         _cflags_speed='-O5'
2876         _cflags_size='-O5 -xspace'
2877         _flags_filter=suncc_flags
2878     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2879         _type=pathscale
2880         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2881         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2882         _cflags_speed='-O2'
2883         _cflags_size='-Os'
2884         _flags_filter='filter_out -Wdisabled-optimization'
2885     elif $_cc -v 2>&1 | grep -q Open64; then
2886         _type=open64
2887         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2888         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2889         _cflags_speed='-O2'
2890         _cflags_size='-Os'
2891         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2892     elif $_cc -V 2>&1 | grep -q Portland; then
2893         _type=pgi
2894         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2895         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2896         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2897         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2898         _cflags_noopt="-O"
2899         _flags_filter=pgi_flags
2900     elif $_cc 2>&1 | grep -q Microsoft; then
2901         _type=msvc
2902         _ident=$($cc 2>&1 | head -n1)
2903         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2904         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2905         _cflags_speed="-O2"
2906         _cflags_size="-O1"
2907         # Nonstandard output options, to avoid msys path conversion issues.
2908         # Relies on wrapper to remap it.
2909         if $_cc 2>&1 | grep -q Linker; then
2910             _ld_o='-out $@'
2911         else
2912             _ld_o='-Fe$@'
2913         fi
2914         _cc_o='-Fo $@'
2915         _cc_e='-P -Fi $@'
2916         _flags_filter=msvc_flags
2917         _ld_lib='lib%.a'
2918         _ld_path='-libpath:'
2919         _flags='-nologo'
2920         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2921         if [ $pfx = hostcc ]; then
2922             append _cflags -Dsnprintf=_snprintf
2923         fi
2924         disable stripping
2925     elif $_cc 2>&1 | grep -q Intel; then
2926         _type=icl
2927         _ident=$($cc 2>&1 | head -n1)
2928         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2929         # Not only is O3 broken on 13.x+ but it is slower on all previous
2930         # versions (tested) as well.
2931         _cflags_speed="-O2"
2932         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2933         # Nonstandard output options, to avoid msys path conversion issues.
2934         # Relies on wrapper to remap it.
2935         if $_cc 2>&1 | grep -q Linker; then
2936             _ld_o='-out $@'
2937         else
2938             _ld_o='-Fe$@'
2939         fi
2940         _cc_o='-Fo $@'
2941         _cc_e='-P'
2942         _flags_filter=icl_flags
2943         _ld_lib='lib%.a'
2944         _ld_path='-libpath:'
2945         # -Qdiag-error to make icl error when seeing certain unknown arguments
2946         _flags='-nologo -Qdiag-error:4044,10157'
2947         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2948         # with MSVC which enables it by default.
2949         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2950         if [ $pfx = hostcc ]; then
2951             append _cflags -Dsnprintf=_snprintf
2952         fi
2953     fi
2954
2955     eval ${pfx}_type=\$_type
2956     eval ${pfx}_ident=\$_ident
2957 }
2958
2959 set_ccvars(){
2960     eval ${1}_C=\${_cc_c-\${${1}_C}}
2961     eval ${1}_E=\${_cc_e-\${${1}_E}}
2962     eval ${1}_O=\${_cc_o-\${${1}_O}}
2963
2964     if [ -n "$_depflags" ]; then
2965         eval ${1}_DEPFLAGS=\$_depflags
2966     else
2967         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2968         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2969         eval DEP${1}FLAGS=\$_flags
2970     fi
2971 }
2972
2973 probe_cc cc "$cc"
2974 cflags_filter=$_flags_filter
2975 cflags_speed=$_cflags_speed
2976 cflags_size=$_cflags_size
2977 cflags_noopt=$_cflags_noopt
2978 add_cflags $_flags $_cflags
2979 cc_ldflags=$_ldflags
2980 set_ccvars CC
2981
2982 probe_cc hostcc "$host_cc"
2983 host_cflags_filter=$_flags_filter
2984 add_host_cflags  $_flags $_cflags
2985 set_ccvars HOSTCC
2986
2987 test -n "$cc_type" && enable $cc_type ||
2988     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2989
2990 : ${as_default:=$cc}
2991 : ${dep_cc_default:=$cc}
2992 : ${ld_default:=$cc}
2993 : ${host_ld_default:=$host_cc}
2994 set_default ar as dep_cc ld host_ld
2995
2996 probe_cc as "$as"
2997 asflags_filter=$_flags_filter
2998 add_asflags $_flags $_cflags
2999 set_ccvars AS
3000
3001 probe_cc ld "$ld"
3002 ldflags_filter=$_flags_filter
3003 add_ldflags $_flags $_ldflags
3004 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3005 LD_O=${_ld_o-$LD_O}
3006 LD_LIB=${_ld_lib-$LD_LIB}
3007 LD_PATH=${_ld_path-$LD_PATH}
3008
3009 probe_cc hostld "$host_ld"
3010 host_ldflags_filter=$_flags_filter
3011 add_host_ldflags $_flags $_ldflags
3012 HOSTLD_O=${_ld_o-$HOSTLD_O}
3013
3014 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3015     probe_cc depcc "$dep_cc"
3016     CCDEP=${_DEPCMD:-$DEPCMD}
3017     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3018     DEPCCFLAGS=$_flags
3019 fi
3020
3021 if $ar 2>&1 | grep -q Microsoft; then
3022     arflags="-nologo"
3023     ar_o='-out:$@'
3024 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3025     arflags="rq"
3026     ar_o='$@'
3027 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3028     arflags='-Xany -r -c'
3029     ar_o='$@'
3030 else
3031     arflags="rc"
3032     ar_o='$@'
3033 fi
3034
3035 add_cflags $extra_cflags
3036 add_cxxflags $extra_cxxflags
3037 add_asflags $extra_cflags
3038
3039 if test -n "$sysroot"; then
3040     case "$cc_type" in
3041         gcc|llvm_gcc|clang)
3042             add_cppflags --sysroot="$sysroot"
3043             add_ldflags --sysroot="$sysroot"
3044         ;;
3045         tms470)
3046             add_cppflags -I"$sysinclude"
3047             add_ldflags  --sysroot="$sysroot"
3048         ;;
3049     esac
3050 fi
3051
3052 if test "$cpu" = host; then
3053     enabled cross_compile &&
3054         die "--cpu=host makes no sense when cross-compiling."
3055
3056     case "$cc_type" in
3057         gcc|llvm_gcc)
3058             check_native(){
3059                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3060                 sed -n "/cc1.*$1=/{
3061                             s/.*$1=\\([^ ]*\\).*/\\1/
3062                             p
3063                             q
3064                         }" $TMPE
3065             }
3066             cpu=$(check_native -march || check_native -mcpu)
3067         ;;
3068     esac
3069
3070     test "${cpu:-host}" = host &&
3071         die "--cpu=host not supported with compiler $cc"
3072 fi
3073
3074 # Deal with common $arch aliases
3075 case "$arch" in
3076     aarch64|arm64)
3077         arch="aarch64"
3078     ;;
3079     arm*|iPad*|iPhone*)
3080         arch="arm"
3081     ;;
3082     mips*|IP*)
3083         arch="mips"
3084     ;;
3085     parisc*|hppa*)
3086         arch="parisc"
3087     ;;
3088     "Power Macintosh"|ppc*|powerpc*)
3089         arch="ppc"
3090     ;;
3091     s390|s390x)
3092         arch="s390"
3093     ;;
3094     sh4|sh)
3095         arch="sh4"
3096     ;;
3097     sun4u|sparc*)
3098         arch="sparc"
3099     ;;
3100     tilegx|tile-gx)
3101         arch="tilegx"
3102     ;;
3103     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3104         arch="x86"
3105     ;;
3106 esac
3107
3108 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3109 enable $arch
3110
3111 # Add processor-specific flags
3112 if enabled aarch64; then
3113
3114     case $cpu in
3115         armv*)
3116             cpuflags="-march=$cpu"
3117         ;;
3118         *)
3119             cpuflags="-mcpu=$cpu"
3120         ;;
3121     esac
3122
3123 elif enabled alpha; then
3124
3125     cpuflags="-mcpu=$cpu"
3126
3127 elif enabled arm; then
3128
3129     check_arm_arch() {
3130         check_cpp_condition stddef.h \
3131             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3132             $cpuflags
3133     }
3134
3135     probe_arm_arch() {
3136         if   check_arm_arch 4;        then echo armv4;
3137         elif check_arm_arch 4T;       then echo armv4t;
3138         elif check_arm_arch 5;        then echo armv5;
3139         elif check_arm_arch 5E;       then echo armv5e;
3140         elif check_arm_arch 5T;       then echo armv5t;
3141         elif check_arm_arch 5TE;      then echo armv5te;
3142         elif check_arm_arch 5TEJ;     then echo armv5te;
3143         elif check_arm_arch 6;        then echo armv6;
3144         elif check_arm_arch 6J;       then echo armv6j;
3145         elif check_arm_arch 6K;       then echo armv6k;
3146         elif check_arm_arch 6Z;       then echo armv6z;
3147         elif check_arm_arch 6ZK;      then echo armv6zk;
3148         elif check_arm_arch 6T2;      then echo armv6t2;
3149         elif check_arm_arch 7;        then echo armv7;
3150         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3151         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3152         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3153         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3154         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3155         fi
3156     }
3157
3158     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3159
3160     case $cpu in
3161         armv*)
3162             cpuflags="-march=$cpu"
3163             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3164         ;;
3165         *)
3166             cpuflags="-mcpu=$cpu"
3167             case $cpu in
3168                 cortex-a*)                               subarch=armv7a  ;;
3169                 cortex-r*)                               subarch=armv7r  ;;
3170                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3171                 arm11*)                                  subarch=armv6   ;;
3172                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3173                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3174                 *)                             subarch=$(probe_arm_arch) ;;
3175             esac
3176         ;;
3177     esac
3178
3179     case "$subarch" in
3180         armv5t*)    enable fast_clz                ;;
3181         armv[6-8]*) enable fast_clz fast_unaligned ;;
3182     esac
3183
3184 elif enabled avr32; then
3185
3186     case $cpu in
3187         ap7[02]0[0-2])
3188             subarch="avr32_ap"
3189             cpuflags="-mpart=$cpu"
3190         ;;
3191         ap)
3192             subarch="avr32_ap"
3193             cpuflags="-march=$cpu"
3194         ;;
3195         uc3[ab]*)
3196             subarch="avr32_uc"
3197             cpuflags="-mcpu=$cpu"
3198         ;;
3199         uc)
3200             subarch="avr32_uc"
3201             cpuflags="-march=$cpu"
3202         ;;
3203     esac
3204
3205 elif enabled bfin; then
3206
3207     cpuflags="-mcpu=$cpu"
3208
3209 elif enabled mips; then
3210
3211     cpuflags="-march=$cpu"
3212
3213     case $cpu in
3214         24kc)
3215             disable mipsfpu
3216             disable mipsdspr1
3217             disable mipsdspr2
3218         ;;
3219         24kf*)
3220             disable mipsdspr1
3221             disable mipsdspr2
3222         ;;
3223         24kec|34kc|1004kc)
3224             disable mipsfpu
3225             disable mipsdspr2
3226         ;;
3227         24kef*|34kf*|1004kf*)
3228             disable mipsdspr2
3229         ;;
3230         74kc)
3231             disable mipsfpu
3232         ;;
3233     esac
3234
3235 elif enabled ppc; then
3236
3237     case $(tolower $cpu) in
3238         601|ppc601|powerpc601)
3239             cpuflags="-mcpu=601"
3240             disable altivec
3241         ;;
3242         603*|ppc603*|powerpc603*)
3243             cpuflags="-mcpu=603"
3244             disable altivec
3245         ;;
3246         604*|ppc604*|powerpc604*)
3247             cpuflags="-mcpu=604"
3248             disable altivec
3249         ;;
3250         g3|75*|ppc75*|powerpc75*)
3251             cpuflags="-mcpu=750"
3252             disable altivec
3253         ;;
3254         g4|745*|ppc745*|powerpc745*)
3255             cpuflags="-mcpu=7450"
3256         ;;
3257         74*|ppc74*|powerpc74*)
3258             cpuflags="-mcpu=7400"
3259         ;;
3260         g5|970|ppc970|powerpc970)
3261             cpuflags="-mcpu=970"
3262         ;;
3263         power[3-7]*)
3264             cpuflags="-mcpu=$cpu"
3265         ;;
3266         cell)
3267             cpuflags="-mcpu=cell"
3268             enable ldbrx
3269         ;;
3270         e500mc)
3271             cpuflags="-mcpu=e500mc"
3272             disable altivec
3273         ;;
3274         e500v2)
3275             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3276             disable altivec
3277         ;;
3278         e500)
3279             cpuflags="-mcpu=8540 -mhard-float"
3280             disable altivec
3281         ;;
3282     esac
3283
3284 elif enabled sparc; then
3285
3286     case $cpu in
3287         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3288             cpuflags="-mcpu=$cpu"
3289             disable vis
3290         ;;
3291         ultrasparc*|niagara[234])
3292             cpuflags="-mcpu=$cpu"
3293         ;;
3294     esac
3295
3296 elif enabled x86; then
3297
3298     case $cpu in
3299         i[345]86|pentium)
3300             cpuflags="-march=$cpu"
3301             disable mmx
3302         ;;
3303         # targets that do NOT support nopl and conditional mov (cmov)
3304         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3305             cpuflags="-march=$cpu"
3306             disable i686
3307         ;;
3308         # targets that do support nopl and conditional mov (cmov)
3309         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3310             cpuflags="-march=$cpu"
3311             enable i686
3312             enable fast_cmov
3313         ;;
3314         # targets that do support conditional mov but on which it's slow
3315         pentium4|pentium4m|prescott|nocona)
3316             cpuflags="-march=$cpu"
3317             enable i686
3318             disable fast_cmov
3319         ;;
3320     esac
3321
3322 fi
3323
3324 if [ "$cpu" != generic ]; then
3325     add_cflags  $cpuflags
3326     add_asflags $cpuflags
3327 fi
3328
3329 # compiler sanity check
3330 check_exec <<EOF
3331 int main(void){ return 0; }
3332 EOF
3333 if test "$?" != 0; then
3334     echo "$cc is unable to create an executable file."
3335     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3336         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3337         echo "Only do this if you know what cross compiling means."
3338     fi
3339     die "C compiler test failed."
3340 fi
3341
3342 add_cppflags -D_ISOC99_SOURCE
3343 add_cxxflags -D__STDC_CONSTANT_MACROS
3344 check_cflags -std=c99
3345 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3346 #include <stdlib.h>
3347 EOF
3348 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3349 #include <stdlib.h>
3350 EOF
3351
3352 check_host_cflags -std=c99
3353 check_host_cflags -Wall
3354
3355 check_64bit(){
3356     arch32=$1
3357     arch64=$2
3358     expr=$3
3359     check_code cc "" "int test[2*($expr) - 1]" &&
3360         subarch=$arch64 || subarch=$arch32
3361 }
3362
3363 case "$arch" in
3364     aarch64|alpha|ia64)
3365         spic=$shared
3366     ;;
3367     mips)
3368         check_64bit mips mips64 '_MIPS_SIM > 1'
3369         spic=$shared
3370     ;;
3371     parisc)
3372         check_64bit parisc parisc64 'sizeof(void *) > 4'
3373         spic=$shared
3374     ;;
3375     ppc)
3376         check_64bit ppc ppc64 'sizeof(void *) > 4'
3377         spic=$shared
3378     ;;
3379     sparc)
3380         check_64bit sparc sparc64 'sizeof(void *) > 4'
3381         spic=$shared
3382     ;;
3383     x86)
3384         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3385         if test "$subarch" = "x86_64"; then
3386             spic=$shared
3387         fi
3388     ;;
3389     ppc)
3390         check_cc <<EOF && subarch="ppc64"
3391         int test[(int)sizeof(char*) - 7];
3392 EOF
3393     ;;
3394 esac
3395
3396 enable $subarch
3397 enabled spic && enable_weak pic
3398
3399 # OS specific
3400 case $target_os in
3401     aix)
3402         SHFLAGS=-shared
3403         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3404         enabled shared && add_ldflags -Wl,-brtl
3405         ;;
3406     haiku)
3407         prefix_default="/boot/common"
3408         network_extralibs="-lnetwork"
3409         host_libs=
3410         ;;
3411     sunos)
3412         SHFLAGS='-shared -Wl,-h,$$(@F)'
3413         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3414         network_extralibs="-lsocket -lnsl"
3415         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3416         # When using suncc to build, the Solaris linker will mark
3417         # an executable with each instruction set encountered by
3418         # the Solaris assembler.  As our libraries contain their own
3419         # guards for processor-specific code, instead suppress
3420         # generation of the HWCAPS ELF section on Solaris x86 only.
3421         enabled_all suncc x86 &&
3422             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3423             add_ldflags -Wl,-M,mapfile
3424         nm_default='nm -P -g'
3425         ;;
3426     netbsd)
3427         disable symver
3428         oss_indev_extralibs="-lossaudio"
3429         oss_outdev_extralibs="-lossaudio"
3430         enabled gcc || check_ldflags -Wl,-zmuldefs
3431         ;;
3432     openbsd|bitrig)
3433         disable symver
3434         SHFLAGS='-shared'
3435         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3436         SLIB_INSTALL_LINKS=
3437         oss_indev_extralibs="-lossaudio"
3438         oss_outdev_extralibs="-lossaudio"
3439         ;;
3440     dragonfly)
3441         disable symver
3442         ;;
3443     freebsd)
3444         ;;
3445     bsd/os)
3446         add_extralibs -lpoll -lgnugetopt
3447         strip="strip -d"
3448         ;;
3449     darwin)
3450         gas="gas-preprocessor.pl $cc"
3451         enabled ppc && add_asflags -force_cpusubtype_ALL
3452         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3453         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3454         strip="${strip} -x"
3455         add_ldflags -Wl,-dynamic,-search_paths_first
3456         SLIBSUF=".dylib"
3457         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3458         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3459         objformat="macho"
3460         enabled x86_64 && objformat="macho64"
3461         enabled_any pic shared ||
3462             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3463         ;;
3464     mingw32*)
3465         if test $target_os = "mingw32ce"; then
3466             disable network
3467         else
3468             target_os=mingw32
3469         fi
3470         LIBTARGET=i386
3471         if enabled x86_64; then
3472             LIBTARGET="i386:x86-64"
3473         elif enabled arm; then
3474             LIBTARGET=arm-wince
3475         fi
3476         check_ldflags -Wl,--nxcompat
3477         check_ldflags -Wl,--dynamicbase
3478         shlibdir_default="$bindir_default"
3479         SLIBPREF=""
3480         SLIBSUF=".dll"
3481         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3482         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3483         dlltool="${cross_prefix}dlltool"
3484         if check_cmd lib.exe -list; then
3485             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3486             if enabled x86_64; then
3487                 LIBTARGET=x64
3488             fi
3489         elif check_cmd $dlltool --version; then
3490             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3491         fi
3492         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3493         SLIB_INSTALL_LINKS=
3494         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3495         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3496         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3497         objformat="win32"
3498         ranlib=:
3499         enable dos_paths
3500         ;;
3501     win32|win64)
3502         if enabled shared; then
3503             # Link to the import library instead of the normal static library
3504             # for shared libs.
3505             LD_LIB='%.lib'
3506             # Cannot build shared and static libs at the same time with MSVC.
3507             disable static
3508         fi
3509         shlibdir_default="$bindir_default"
3510         SLIBPREF=""
3511         SLIBSUF=".dll"
3512         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3513         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3514         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3515         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3516         SLIB_INSTALL_LINKS=
3517         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3518         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3519         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3520         objformat="win32"
3521         ranlib=:
3522         enable dos_paths
3523         ;;
3524     cygwin*)
3525         target_os=cygwin
3526         shlibdir_default="$bindir_default"
3527         SLIBPREF="cyg"
3528         SLIBSUF=".dll"
3529         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3530         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3531         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3532         SLIB_INSTALL_LINKS=
3533         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3534         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3535         objformat="win32"
3536         enable dos_paths
3537         ;;
3538     *-dos|freedos|opendos)
3539         network_extralibs="-lsocket"
3540         objformat="coff"
3541         enable dos_paths
3542         add_cppflags -U__STRICT_ANSI__
3543         ;;
3544     linux)
3545         enable dv1394
3546         ;;
3547     irix*)
3548         target_os=irix
3549         ranlib="echo ignoring ranlib"
3550         ;;
3551     os/2*)
3552         strip="lxlite -CS"
3553         ln_s="cp -f"
3554         objformat="aout"
3555         add_cppflags -D_GNU_SOURCE
3556         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3557         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3558         LIBSUF="_s.a"
3559         SLIBPREF=""
3560         SLIBSUF=".dll"
3561         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3562         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3563         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3564             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3565             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3566             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3567             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3568             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3569         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3570             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3571         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3572         enable dos_paths
3573         enable_weak os2threads
3574         ;;
3575     gnu/kfreebsd)
3576         add_cppflags -D_BSD_SOURCE
3577         ;;
3578     gnu)
3579         ;;
3580     qnx)
3581         add_cppflags -D_QNX_SOURCE
3582         network_extralibs="-lsocket"
3583         ;;
3584     symbian)
3585         SLIBSUF=".dll"
3586         enable dos_paths
3587         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3588         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3589         add_ldflags -Wl,--target1-abs,--no-undefined \
3590                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3591                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3592         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3593                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3594                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3595         ;;
3596     osf1)
3597         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3598         ;;
3599     minix)
3600         ;;
3601     plan9)
3602         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3603                      -D_REENTRANT_SOURCE        \
3604                      -D_RESEARCH_SOURCE         \
3605                      -DFD_SETSIZE=96            \
3606                      -DHAVE_SOCK_OPTS
3607         add_compat strtod.o strtod=avpriv_strtod
3608         network_extralibs='-lbsd'
3609         exeobjs=compat/plan9/main.o
3610         disable ffserver
3611         cp_f='cp'
3612         ;;
3613     none)
3614         ;;
3615     *)
3616         die "Unknown OS '$target_os'."
3617         ;;
3618 esac
3619
3620 # determine libc flavour
3621
3622 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3623 if check_cpp_condition features.h "defined __UCLIBC__"; then
3624     libc_type=uclibc
3625     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3626 elif check_cpp_condition features.h "defined __GLIBC__"; then
3627     libc_type=glibc
3628     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3629 # MinGW headers can be installed on Cygwin, so check for newlib first.
3630 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3631     libc_type=newlib
3632     add_cppflags -U__STRICT_ANSI__
3633 elif check_header _mingw.h; then
3634     libc_type=mingw
3635     check_cpp_condition _mingw.h \
3636         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3637             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3638         die "ERROR: MinGW runtime version must be >= 3.15."
3639     add_cppflags -U__STRICT_ANSI__
3640     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3641             __MINGW64_VERSION_MAJOR < 3"; then
3642         add_compat msvcrt/snprintf.o
3643         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3644     else
3645         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3646     fi
3647 elif check_func_headers stdlib.h _get_doserrno; then
3648     libc_type=msvcrt
3649     add_compat strtod.o strtod=avpriv_strtod
3650     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3651                                  _snprintf=avpriv_snprintf  \
3652                                  vsnprintf=avpriv_vsnprintf
3653     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3654     # 0x601 by default unless something else is set by the user.
3655     # This can easily lead to us detecting functions only present
3656     # in such new versions and producing binaries requiring windows 7.0.
3657     # Therefore explicitly set the default to XP unless the user has
3658     # set something else on the command line.
3659     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3660 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3661     libc_type=klibc
3662 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3663     libc_type=bionic
3664     add_compat strtod.o strtod=avpriv_strtod
3665 fi
3666
3667 test -n "$libc_type" && enable $libc_type
3668
3669 # hacks for compiler/libc/os combinations
3670
3671 if enabled_all tms470 glibc; then
3672     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3673     add_cppflags -D__USER_LABEL_PREFIX__=
3674     add_cppflags -D__builtin_memset=memset
3675     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3676     add_cflags   -pds=48    # incompatible redefinition of macro
3677 fi
3678
3679 if enabled_all ccc glibc; then
3680     add_ldflags -Wl,-z,now  # calls to libots crash without this
3681 fi
3682
3683 esc(){
3684     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3685 }
3686
3687 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3688
3689 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3690
3691 set_default $PATHS_LIST
3692 set_default nm
3693
3694 # we need to build at least one lib type
3695 if ! enabled_any static shared; then
3696     cat <<EOF
3697 At least one library type must be built.
3698 Specify --enable-static to build the static libraries or --enable-shared to
3699 build the shared libraries as well. To only build the shared libraries specify
3700 --disable-static in addition to --enable-shared.
3701 EOF
3702     exit 1;
3703 fi
3704
3705 # backward compatibility layer for incompatible_libav/fork_abi
3706 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3707 enabled incompatible_libav_abi && enable incompatible_fork_abi
3708
3709 die_license_disabled() {
3710     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3711 }
3712
3713 die_license_disabled_gpl() {
3714     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3715 }
3716
3717 die_license_disabled gpl frei0r
3718 die_license_disabled gpl libcdio
3719 die_license_disabled gpl libutvideo
3720 die_license_disabled gpl libvidstab
3721 die_license_disabled gpl libx264
3722 die_license_disabled gpl libxavs
3723 die_license_disabled gpl libxvid
3724 die_license_disabled gpl x11grab
3725
3726 die_license_disabled nonfree libaacplus
3727 die_license_disabled nonfree libfaac
3728 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3729 enabled gpl && die_license_disabled_gpl nonfree openssl
3730
3731 die_license_disabled version3 libopencore_amrnb
3732 die_license_disabled version3 libopencore_amrwb
3733 die_license_disabled version3 libvo_aacenc
3734 die_license_disabled version3 libvo_amrwbenc
3735
3736 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3737
3738 disabled optimizations || check_cflags -fomit-frame-pointer
3739
3740 enable_weak_pic() {
3741     disabled pic && return
3742     enable pic
3743     add_cppflags -DPIC
3744     case "$target_os" in
3745     mingw*|cygwin*)
3746         ;;
3747     *)
3748         add_cflags -fPIC
3749         ;;
3750     esac
3751     add_asflags  -fPIC
3752 }
3753
3754 enabled pic && enable_weak_pic
3755
3756 check_cc <<EOF || die "Symbol mangling check failed."
3757 int ff_extern;
3758 EOF
3759 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3760 extern_prefix=${sym%%ff_extern*}
3761
3762 check_cc <<EOF && enable_weak inline_asm
3763 void foo(void) { __asm__ volatile ("" ::); }
3764 EOF
3765
3766 _restrict=
3767 for restrict_keyword in restrict __restrict__ __restrict; do
3768     check_cc <<EOF && _restrict=$restrict_keyword && break
3769 void foo(char * $restrict_keyword p);
3770 EOF
3771 done
3772
3773 check_cc <<EOF && enable pragma_deprecated
3774 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3775 EOF
3776
3777 check_cc <<EOF && enable attribute_packed
3778 struct { int x; } __attribute__((packed)) x;
3779 EOF
3780
3781 check_cc <<EOF && enable attribute_may_alias
3782 union { int x; } __attribute__((may_alias)) x;
3783 EOF
3784
3785 check_cc <<EOF || die "endian test failed"
3786 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3787 EOF
3788 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3789
3790 check_inline_asm inline_asm_labels '"1:\n"'
3791
3792 if enabled alpha; then
3793
3794     check_cflags -mieee
3795
3796 elif enabled arm; then
3797
3798     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3799 float func(float a, float b){ return a+b; }
3800 EOF
3801
3802     enabled thumb && check_cflags -mthumb || check_cflags -marm
3803     nogas=die
3804
3805     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3806         enable vfp_args
3807     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3808         case "${cross_prefix:-$cc}" in
3809             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3810             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3811 __asm__ (".eabi_attribute 28, 1");
3812 int main(void) { return 0; }
3813 EOF
3814         esac
3815         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3816     fi
3817
3818     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3819     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3820     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3821     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3822     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3823     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3824
3825     [ $target_os = linux ] ||
3826         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3827             $ARCH_EXT_LIST_ARM
3828
3829     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3830     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3831
3832     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3833
3834 elif enabled mips; then
3835
3836     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3837     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3838      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3839     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3840      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3841     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3842      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3843     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3844      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3845
3846 elif enabled parisc; then
3847
3848     if enabled gcc; then
3849         case $($cc -dumpversion) in
3850             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3851         esac
3852     fi
3853
3854 elif enabled ppc; then
3855
3856     enable local_aligned_8 local_aligned_16
3857
3858     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3859     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3860     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3861     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3862
3863     # AltiVec flags: The FSF version of GCC differs from the Apple version
3864     if enabled altivec; then
3865         if ! enabled_any pic ppc64; then
3866             nogas=warn
3867         fi
3868         check_cflags -maltivec -mabi=altivec &&
3869         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3870         check_cflags -faltivec
3871
3872         # check if our compiler supports Motorola AltiVec C API
3873         check_cc <<EOF || disable altivec
3874 $inc_altivec_h
3875 int main(void) {
3876     vector signed int v1 = (vector signed int) { 0 };
3877     vector signed int v2 = (vector signed int) { 1 };
3878     v1 = vec_add(v1, v2);
3879     return 0;
3880 }
3881 EOF
3882
3883         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3884     fi
3885
3886 elif enabled sparc; then
3887
3888     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3889
3890 elif enabled x86; then
3891
3892     check_builtin rdtsc    intrin.h   "__rdtsc()"
3893     check_builtin mm_empty mmintrin.h "_mm_empty()"
3894
3895     enable local_aligned_8 local_aligned_16
3896
3897     # check whether EBP is available on x86
3898     # As 'i' is stored on the stack, this program will crash
3899     # if the base pointer is used to access it because the
3900     # base pointer is cleared in the inline assembly code.
3901     check_exec_crash <<EOF && enable ebp_available
3902 volatile int i=0;
3903 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3904 return i;
3905 EOF
3906
3907     # check whether EBX is available on x86
3908     check_inline_asm ebx_available '""::"b"(0)' &&
3909         check_inline_asm ebx_available '"":::"%ebx"'
3910
3911     # check whether xmm clobbers are supported
3912     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3913
3914     # check whether binutils is new enough to compile SSSE3/MMXEXT
3915     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3916     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3917
3918     if ! disabled_any asm mmx yasm; then
3919         if check_cmd $yasmexe --version; then
3920             enabled x86_64 && yasm_extra="-m amd64"
3921             yasm_debug="-g dwarf2"
3922         elif check_cmd nasm -v; then
3923             yasmexe=nasm
3924             yasm_debug="-g -F dwarf"
3925             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3926         fi
3927
3928         YASMFLAGS="-f $objformat $yasm_extra"
3929         enabled pic               && append YASMFLAGS "-DPIC"
3930         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3931         case "$objformat" in
3932             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3933         esac
3934
3935         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3936             die "yasm not found, use --disable-yasm for a crippled build"
3937         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
3938         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3939         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3940     fi
3941
3942     case "$cpu" in
3943         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3944             disable fast_clz
3945         ;;
3946     esac
3947
3948 fi
3949
3950 if enabled asm; then
3951     as=${gas:=$as}
3952     check_as <<EOF && enable gnu_as || \
3953         $nogas "GNU assembler not found, install gas-preprocessor"
3954 .macro m n
3955 \n: .int 0
3956 .endm
3957 m x
3958 EOF
3959 fi
3960
3961 check_ldflags -Wl,--as-needed
3962
3963 if check_func dlopen; then
3964     ldl=
3965 elif check_func dlopen -ldl; then
3966     ldl=-ldl
3967 fi
3968
3969 if ! disabled network; then
3970     check_type "sys/types.h sys/socket.h" socklen_t
3971     check_type netdb.h "struct addrinfo"
3972     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3973     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3974     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3975     check_type netinet/in.h "struct sockaddr_in6"
3976     check_type poll.h "struct pollfd"
3977     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3978     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3979     check_type netinet/sctp.h "struct sctp_event_subscribe"
3980     check_func getaddrinfo $network_extralibs
3981     check_func getservbyport $network_extralibs
3982     # Prefer arpa/inet.h over winsock2
3983     if check_header arpa/inet.h ; then
3984         check_func closesocket
3985     elif check_header winsock2.h ; then
3986         check_func_headers winsock2.h closesocket -lws2 &&
3987             network_extralibs="-lws2" ||
3988         { check_func_headers winsock2.h closesocket -lws2_32 &&
3989             network_extralibs="-lws2_32"; }
3990         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3991         check_type ws2tcpip.h socklen_t
3992         check_type ws2tcpip.h "struct addrinfo"
3993         check_type ws2tcpip.h "struct group_source_req"
3994         check_type ws2tcpip.h "struct ip_mreq_source"
3995         check_type ws2tcpip.h "struct ipv6_mreq"
3996         check_type winsock2.h "struct pollfd"
3997         check_type ws2tcpip.h "struct sockaddr_in6"
3998         check_type ws2tcpip.h "struct sockaddr_storage"
3999         check_struct winsock2.h "struct sockaddr" sa_len
4000     else
4001         disable network
4002     fi
4003 fi
4004
4005 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4006 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4007
4008 check_func  access
4009 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4010 check_func  fcntl
4011 check_func  fork
4012 check_func_headers stdlib.h getenv
4013 check_func  gethrtime
4014 check_func  getopt
4015 check_func  getrusage
4016 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4017 check_func  gettimeofday
4018 check_func  inet_aton $network_extralibs
4019 check_func  isatty
4020 check_func  localtime_r
4021 check_func  ${malloc_prefix}memalign            && enable memalign
4022 check_func  mkstemp
4023 check_func  mmap
4024 check_func  mprotect
4025 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4026 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4027 check_func  setrlimit
4028 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4029 check_func  strerror_r
4030 check_func  sched_getaffinity
4031 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4032 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4033 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4034 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4035 check_builtin sarestart signal.h "SA_RESTART"
4036 check_func  sysconf
4037 check_func  sysctl
4038 check_func  usleep
4039 check_func_headers conio.h kbhit
4040 check_func_headers windows.h PeekNamedPipe
4041 check_func_headers io.h setmode
4042 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4043 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4044 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4045 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4046 check_func_headers windows.h GetProcessAffinityMask
4047 check_func_headers windows.h GetProcessTimes
4048 check_func_headers windows.h GetSystemTimeAsFileTime
4049 check_func_headers windows.h MapViewOfFile
4050 check_func_headers windows.h SetConsoleTextAttribute
4051 check_func_headers windows.h Sleep
4052 check_func_headers windows.h VirtualAlloc
4053 check_func_headers glob.h glob
4054 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4055
4056 check_header cl/cl.h
4057 check_header direct.h
4058 check_header dlfcn.h
4059 check_header dxva.h
4060 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4061 check_header io.h
4062 check_header libcrystalhd/libcrystalhd_if.h
4063 check_header malloc.h
4064 check_header poll.h
4065 check_header sys/mman.h
4066 check_header sys/param.h
4067 check_header sys/resource.h
4068 check_header sys/select.h
4069 check_header sys/time.h
4070 check_header sys/un.h
4071 check_header termios.h
4072 check_header unistd.h
4073 check_header vdpau/vdpau.h
4074 check_header vdpau/vdpau_x11.h
4075 check_header VideoDecodeAcceleration/VDADecoder.h
4076 check_header windows.h
4077 check_header X11/extensions/XvMClib.h
4078 check_header asm/types.h
4079
4080 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4081 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4082
4083 if ! disabled w32threads && ! enabled pthreads; then
4084     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4085 fi
4086
4087 # check for some common methods of building with pthread support
4088 # do this before the optional library checks as some of them require pthreads
4089 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4090     enable pthreads
4091     if check_func pthread_create; then
4092         :
4093     elif check_func pthread_create -pthread; then
4094         add_cflags -pthread
4095         add_extralibs -pthread
4096     elif check_func pthread_create -pthreads; then
4097         add_cflags -pthreads
4098         add_extralibs -pthreads
4099     elif check_func pthread_create -lpthreadGC2; then
4100         add_extralibs -lpthreadGC2
4101     elif ! check_lib pthread.h pthread_create -lpthread; then
4102         disable pthreads
4103     fi
4104 fi
4105
4106 for thread in $THREADS_LIST; do
4107     if enabled $thread; then
4108         test -n "$thread_type" &&
4109             die "ERROR: Only one thread type must be selected." ||
4110             thread_type="$thread"
4111     fi
4112 done
4113
4114 if enabled pthreads; then
4115   check_func pthread_cancel
4116 fi
4117
4118 enabled sync_val_compare_and_swap && enable atomics_gcc
4119 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4120 enabled MemoryBarrier && enable atomics_win32
4121
4122 check_lib math.h sin -lm && LIBM="-lm"
4123 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4124
4125 atan2f_args=2
4126 ldexpf_args=2
4127 powf_args=2
4128
4129 for func in $MATH_FUNCS; do
4130     eval check_mathfunc $func \${${func}_args:-1}
4131 done
4132
4133 # these are off by default, so fail if requested and not available
4134 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4135                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4136                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4137 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4138 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4139 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4140 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4141 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4142 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4143 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4144 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4145                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4146                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4147 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4148 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4149 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4150 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"
4151 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4152 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4153 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme
4154 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4155                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4156                                done || die "ERROR: libgsm not found"; }
4157 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4158 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4159 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4160 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4161 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4162 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4163 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4164 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4165                                check_lib openjpeg.h opj_version -lopenjpeg ||
4166                                die "ERROR: libopenjpeg not found"; }
4167 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4168 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4169 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4170 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4171 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4172 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4173 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4174 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4175 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4176     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4177     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4178 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4179 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4180                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4181                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4182 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4183 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4184 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4185 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4186 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4187 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4188 enabled libvpx            && {
4189     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4190                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4191     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 ||
4192                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4193     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4194     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4195 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4196 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4197                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4198                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4199 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4200 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4201 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4202 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4203                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4204                                die "ERROR: openal not found"; } &&
4205                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4206                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4207 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4208                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4209                                die "ERROR: opencl not found"; } &&
4210                              { enabled_any w32threads os2threads &&
4211                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4212                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4213                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4214                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4215 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4216                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4217                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4218                                die "ERROR: openssl not found"; }
4219
4220 if enabled gnutls; then
4221     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4222     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4223 fi
4224
4225 # libdc1394 check
4226 if enabled libdc1394; then
4227     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4228         enable libdc1394_2; } ||
4229     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4230         enable libdc1394_1; } ||
4231     die "ERROR: No version of libdc1394 found "
4232 fi
4233
4234 SDL_CONFIG="${cross_prefix}sdl-config"
4235 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4236     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4237     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4238     enable sdl
4239 else
4240   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4241     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4242     sdl_libs=$("${SDL_CONFIG}" --libs)
4243     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4244     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4245     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4246     enable sdl
4247   fi
4248 fi
4249 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4250
4251 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4252 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4253 perl --version > /dev/null 2>&1 && enable perl || disable perl
4254 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4255 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4256
4257 check_header linux/fb.h
4258 check_header linux/videodev.h
4259 check_header linux/videodev2.h
4260 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4261
4262 check_header sys/videoio.h
4263
4264 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4265 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4266 # w32api 3.12 had it defined wrong
4267 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4268
4269 check_type "dshow.h" IBaseFilter
4270
4271 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4272 { check_header dev/bktr/ioctl_meteor.h &&
4273   check_header dev/bktr/ioctl_bt848.h; } ||
4274 { check_header machine/ioctl_meteor.h &&
4275   check_header machine/ioctl_bt848.h; } ||
4276 { check_header dev/video/meteor/ioctl_meteor.h &&
4277   check_header dev/video/bktr/ioctl_bt848.h; } ||
4278 check_header dev/ic/bt8xx.h
4279
4280 check_header sndio.h
4281 if check_struct sys/soundcard.h audio_buf_info bytes; then
4282     enable_safe sys/soundcard.h
4283 else
4284     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4285     #include <sys/soundcard.h>
4286     audio_buf_info abc;
4287 EOF
4288 fi
4289 check_header soundcard.h
4290
4291 enabled_any alsa_indev alsa_outdev &&
4292     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4293
4294 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4295     check_func jack_port_get_latency_range -ljack
4296
4297 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4298
4299 if enabled libcdio; then
4300     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4301     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4302     die "ERROR: libcdio-paranoia not found"
4303 fi
4304
4305 enabled x11grab                                           &&
4306 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4307 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4308 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4309
4310 enabled vaapi &&
4311     check_lib va/va.h vaInitialize -lva ||
4312     disable vaapi
4313
4314 enabled vdpau &&
4315     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4316     disable vdpau
4317
4318 # Funny iconv installations are not unusual, so check it after all flags have been set
4319 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4320
4321 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4322
4323 # add some useful compiler flags if supported
4324 check_cflags -Wdeclaration-after-statement
4325 check_cflags -Wall
4326 check_cflags -Wno-parentheses
4327 check_cflags -Wno-switch
4328 check_cflags -Wno-format-zero-length
4329 check_cflags -Wdisabled-optimization
4330 check_cflags -Wpointer-arith
4331 check_cflags -Wredundant-decls
4332 check_cflags -Wno-pointer-sign
4333 check_cflags -Wwrite-strings
4334 check_cflags -Wtype-limits
4335 check_cflags -Wundef
4336 check_cflags -Wmissing-prototypes
4337 check_cflags -Wno-pointer-to-int-cast
4338 check_cflags -Wstrict-prototypes
4339 enabled extra_warnings && check_cflags -Winline
4340
4341 # add some linker flags
4342 check_ldflags -Wl,--warn-common
4343 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4344 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4345
4346 enabled xmm_clobber_test &&
4347     check_ldflags -Wl,--wrap,avcodec_open2              \
4348                   -Wl,--wrap,avcodec_decode_audio4      \
4349                   -Wl,--wrap,avcodec_decode_video2      \
4350                   -Wl,--wrap,avcodec_decode_subtitle2   \
4351                   -Wl,--wrap,avcodec_encode_audio2      \
4352                   -Wl,--wrap,avcodec_encode_video       \
4353                   -Wl,--wrap,avcodec_encode_subtitle    \
4354                   -Wl,--wrap,sws_scale ||
4355     disable xmm_clobber_test
4356
4357 echo "X{};" > $TMPV
4358 if test_ldflags -Wl,--version-script,$TMPV; then
4359     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4360     check_cc <<EOF && enable symver_asm_label
4361 void ff_foo(void) __asm__ ("av_foo@VERSION");
4362 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4363 EOF
4364     check_cc <<EOF && enable symver_gnu_asm
4365 __asm__(".symver ff_foo,av_foo@VERSION");
4366 void ff_foo(void) {}
4367 EOF
4368 fi
4369
4370 if [ -z "$optflags" ]; then
4371     if enabled small; then
4372         optflags=$cflags_size
4373     elif enabled optimizations; then
4374         optflags=$cflags_speed
4375     else
4376         optflags=$cflags_noopt
4377     fi
4378 fi
4379
4380 check_optflags(){
4381     check_cflags "$@"
4382     enabled lto && check_ldflags "$@"
4383 }
4384
4385
4386 if enabled lto; then
4387     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4388     check_cflags  -flto
4389     check_ldflags -flto $cpuflags
4390 fi
4391
4392 check_optflags $optflags
4393 check_optflags -fno-math-errno
4394 check_optflags -fno-signed-zeros
4395
4396 enabled ftrapv && check_cflags -ftrapv
4397
4398 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4399 int x;
4400 EOF
4401
4402
4403 if enabled icc; then
4404     # Just warnings, no remarks
4405     check_cflags -w1
4406     # -wd: Disable following warnings
4407     # 144, 167, 556: -Wno-pointer-sign
4408     # 188: enumerated type mixed with another type
4409     # 1292: attribute "foo" ignored
4410     # 1419: external declaration in primary source file
4411     # 10006: ignoring unknown option -fno-signed-zeros
4412     # 10148: ignoring unknown option -Wno-parentheses
4413     # 10156: ignoring option '-W'; no argument required
4414     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4415     # 11030: Warning unknown option --as-needed
4416     # 10156: ignoring option '-export'; no argument required
4417     check_ldflags -wd10156,11030
4418     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4419     enable ebp_available
4420     if enabled x86_32; then
4421         icc_version=$($cc -dumpversion)
4422         test ${icc_version%%.*} -ge 11 &&
4423             check_cflags -falign-stack=maintain-16-byte ||
4424             disable aligned_stack
4425     fi
4426 elif enabled ccc; then
4427     # disable some annoying warnings
4428     add_cflags -msg_disable bitnotint
4429     add_cflags -msg_disable mixfuncvoid
4430     add_cflags -msg_disable nonstandcast
4431     add_cflags -msg_disable unsupieee
4432 elif enabled gcc; then
4433     check_optflags -fno-tree-vectorize
4434     check_cflags -Werror=implicit-function-declaration
4435     check_cflags -Werror=missing-prototypes
4436     check_cflags -Werror=return-type
4437     check_cflags -Werror=vla
4438 elif enabled llvm_gcc; then
4439     check_cflags -mllvm -stack-alignment=16
4440 elif enabled clang; then
4441     check_cflags -mllvm -stack-alignment=16
4442     check_cflags -Qunused-arguments
4443     check_cflags -Werror=implicit-function-declaration
4444     check_cflags -Werror=missing-prototypes
4445     check_cflags -Werror=return-type
4446 elif enabled armcc; then
4447     # 2523: use of inline assembler is deprecated
4448     add_cflags -W${armcc_opt},--diag_suppress=2523
4449     add_cflags -W${armcc_opt},--diag_suppress=1207
4450     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4451     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4452     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4453     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4454 elif enabled tms470; then
4455     add_cflags -pds=824 -pds=837
4456 elif enabled pathscale; then
4457     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4458 elif enabled_any msvc icl; then
4459     enabled x86_32 && disable aligned_stack
4460     enabled_all x86_32 debug && add_cflags -Oy-
4461     enabled debug && add_ldflags -debug
4462     if enabled icl; then
4463         # basically -fstrict-aliasing that does not work (correctly) on icl 13.x
4464         check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4465         # icl will pass the inline asm tests but inline asm is currently
4466         # not supported (build will fail)
4467         disable inline_asm
4468     fi
4469 fi
4470
4471 case $target_os in
4472     osf1)
4473         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4474     ;;
4475     plan9)
4476         add_cppflags -Dmain=plan9_main
4477     ;;
4478 esac
4479
4480 enable frame_thread_encoder
4481 enabled_any $THREADS_LIST      && enable threads
4482 enabled_any $ATOMICS_LIST      && enable atomics_native
4483
4484 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4485
4486 check_deps $CONFIG_LIST       \
4487            $CONFIG_EXTRA      \
4488            $HAVE_LIST         \
4489            $ALL_COMPONENTS    \
4490
4491
4492 if test $target_os = "haiku"; then
4493     disable memalign
4494     disable posix_memalign
4495 fi
4496
4497 ! enabled_any memalign posix_memalign aligned_malloc &&
4498     enabled_any $need_memalign && enable memalign_hack
4499
4500 # add_dep lib dep
4501 # -> enable ${lib}_deps_${dep}
4502 # -> add $dep to ${lib}_deps only once
4503 add_dep() {
4504     lib=$1
4505     dep=$2
4506     enabled "${lib}_deps_${dep}" && return 0
4507     enable  "${lib}_deps_${dep}"
4508     prepend "${lib}_deps" $dep
4509 }
4510
4511 # merge deps lib components
4512 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4513 merge_deps() {
4514     lib=$1
4515     shift
4516     for comp in $*; do
4517         enabled $comp || continue
4518         eval "dep=\"\$${comp}_deps\""
4519         for d in $dep; do
4520             add_dep $lib $d
4521         done
4522     done
4523 }
4524
4525 merge_deps libavfilter $FILTER_LIST
4526
4527 echo "install prefix            $prefix"
4528 echo "source path               $source_path"
4529 echo "C compiler                $cc"
4530 echo "ARCH                      $arch ($cpu)"
4531 if test "$build_suffix" != ""; then
4532     echo "build suffix              $build_suffix"
4533 fi
4534 if test "$progs_suffix" != ""; then
4535     echo "progs suffix              $progs_suffix"
4536 fi
4537 if test "$extra_version" != ""; then
4538     echo "version string suffix     $extra_version"
4539 fi
4540 echo "big-endian                ${bigendian-no}"
4541 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4542 if enabled x86; then
4543     echo "${yasmexe}                      ${yasm-no}"
4544     echo "MMX enabled               ${mmx-no}"
4545     echo "MMXEXT enabled            ${mmxext-no}"
4546     echo "3DNow! enabled            ${amd3dnow-no}"
4547     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4548     echo "SSE enabled               ${sse-no}"
4549     echo "SSSE3 enabled             ${ssse3-no}"
4550     echo "AVX enabled               ${avx-no}"
4551     echo "FMA4 enabled              ${fma4-no}"
4552     echo "i686 features enabled     ${i686-no}"
4553     echo "CMOV is fast              ${fast_cmov-no}"
4554     echo "EBX available             ${ebx_available-no}"
4555     echo "EBP available             ${ebp_available-no}"
4556 fi
4557 if enabled arm; then
4558     echo "ARMv5TE enabled           ${armv5te-no}"
4559     echo "ARMv6 enabled             ${armv6-no}"
4560     echo "ARMv6T2 enabled           ${armv6t2-no}"
4561     echo "VFP enabled               ${vfp-no}"
4562     echo "NEON enabled              ${neon-no}"
4563     echo "THUMB enabled             ${thumb-no}"
4564 fi
4565 if enabled mips; then
4566     echo "MIPS FPU enabled          ${mipsfpu-no}"
4567     echo "MIPS32R2 enabled          ${mips32r2-no}"
4568     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4569     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4570 fi
4571 if enabled ppc; then
4572     echo "AltiVec enabled           ${altivec-no}"
4573     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4574     echo "dcbzl available           ${dcbzl-no}"
4575 fi
4576 if enabled sparc; then
4577     echo "VIS enabled               ${vis-no}"
4578 fi
4579 echo "debug symbols             ${debug-no}"
4580 echo "strip symbols             ${stripping-no}"
4581 echo "optimize for size         ${small-no}"
4582 echo "optimizations             ${optimizations-no}"
4583 echo "static                    ${static-no}"
4584 echo "shared                    ${shared-no}"
4585 echo "postprocessing support    ${postproc-no}"
4586 echo "new filter support        ${avfilter-no}"
4587 echo "network support           ${network-no}"
4588 echo "threading support         ${thread_type-no}"
4589 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4590 echo "SDL support               ${sdl-no}"
4591 echo "opencl enabled            ${opencl-no}"
4592 echo "texi2html enabled         ${texi2html-no}"
4593 echo "perl enabled              ${perl-no}"
4594 echo "pod2man enabled           ${pod2man-no}"
4595 echo "makeinfo enabled          ${makeinfo-no}"
4596 test -n "$random_seed" &&
4597     echo "random seed               ${random_seed}"
4598 echo
4599
4600 echo "External libraries:"
4601 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4602 echo
4603
4604 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4605     echo "Enabled ${type}s:"
4606     eval list=\$$(toupper $type)_LIST
4607     print_enabled '_*' $list | print_3_columns
4608     echo
4609 done
4610
4611 license="LGPL version 2.1 or later"
4612 if enabled nonfree; then
4613     license="nonfree and unredistributable"
4614 elif enabled gplv3; then
4615     license="GPL version 3 or later"
4616 elif enabled lgplv3; then
4617     license="LGPL version 3 or later"
4618 elif enabled gpl; then
4619     license="GPL version 2 or later"
4620 fi
4621
4622 echo "License: $license"
4623
4624 echo "Creating config.mak, config.h, and doc/config.texi..."
4625
4626 test -e Makefile || $ln_s "$source_path/Makefile" .
4627
4628 enabled stripping || strip="echo skipping strip"
4629
4630 config_files="$TMPH config.mak doc/config.texi"
4631
4632 cat > config.mak <<EOF
4633 # Automatically generated by configure - do not modify!
4634 ifndef FFMPEG_CONFIG_MAK
4635 FFMPEG_CONFIG_MAK=1
4636 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4637 prefix=$prefix
4638 LIBDIR=\$(DESTDIR)$libdir
4639 SHLIBDIR=\$(DESTDIR)$shlibdir
4640 INCDIR=\$(DESTDIR)$incdir
4641 BINDIR=\$(DESTDIR)$bindir
4642 DATADIR=\$(DESTDIR)$datadir
4643 MANDIR=\$(DESTDIR)$mandir
4644 SRC_PATH=$source_path
4645 ifndef MAIN_MAKEFILE
4646 SRC_PATH:=\$(SRC_PATH:.%=..%)
4647 endif
4648 CC_IDENT=$cc_ident
4649 ARCH=$arch
4650 CC=$cc
4651 CXX=$cxx
4652 AS=$as
4653 LD=$ld
4654 DEPCC=$dep_cc
4655 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4656 DEPAS=$as
4657 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4658 YASM=$yasmexe
4659 DEPYASM=$yasmexe
4660 AR=$ar
4661 ARFLAGS=$arflags
4662 AR_O=$ar_o
4663 RANLIB=$ranlib
4664 CP=cp -p
4665 LN_S=$ln_s
4666 STRIP=$strip
4667 CPPFLAGS=$CPPFLAGS
4668 CFLAGS=$CFLAGS
4669 CXXFLAGS=$CXXFLAGS
4670 ASFLAGS=$ASFLAGS
4671 AS_C=$AS_C
4672 AS_O=$AS_O
4673 CC_C=$CC_C
4674 CC_E=$CC_E
4675 CC_O=$CC_O
4676 CXX_C=$CXX_C
4677 CXX_O=$CXX_O
4678 LD_O=$LD_O
4679 LD_LIB=$LD_LIB
4680 LD_PATH=$LD_PATH
4681 DLLTOOL=$dlltool
4682 LDFLAGS=$LDFLAGS
4683 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4684 YASMFLAGS=$YASMFLAGS
4685 BUILDSUF=$build_suffix
4686 PROGSSUF=$progs_suffix
4687 FULLNAME=$FULLNAME
4688 LIBPREF=$LIBPREF
4689 LIBSUF=$LIBSUF
4690 LIBNAME=$LIBNAME
4691 SLIBPREF=$SLIBPREF
4692 SLIBSUF=$SLIBSUF
4693 EXESUF=$EXESUF
4694 EXTRA_VERSION=$extra_version
4695 CCDEP=$CCDEP
4696 CXXDEP=$CXXDEP
4697 CCDEP_FLAGS=$CCDEP_FLAGS
4698 ASDEP=$ASDEP
4699 ASDEP_FLAGS=$ASDEP_FLAGS
4700 CC_DEPFLAGS=$CC_DEPFLAGS
4701 AS_DEPFLAGS=$AS_DEPFLAGS
4702 HOSTCC=$host_cc
4703 HOSTLD=$host_ld
4704 HOSTCFLAGS=$host_cflags
4705 HOSTCPPFLAGS=$host_cppflags
4706 HOSTEXESUF=$HOSTEXESUF
4707 HOSTLDFLAGS=$host_ldflags
4708 HOSTLIBS=$host_libs
4709 DEPHOSTCC=$host_cc
4710 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4711 HOSTCCDEP=$HOSTCCDEP
4712 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4713 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4714 HOSTCC_C=$HOSTCC_C
4715 HOSTCC_O=$HOSTCC_O
4716 HOSTLD_O=$HOSTLD_O
4717 TARGET_EXEC=$target_exec $target_exec_args
4718 TARGET_PATH=$target_path
4719 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4720 LIBS-ffplay=$sdl_libs
4721 CFLAGS-ffplay=$sdl_cflags
4722 ZLIB=$($ldflags_filter -lz)
4723 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4724 EXTRALIBS=$extralibs
4725 COMPAT_OBJS=$compat_objs
4726 EXEOBJS=$exeobjs
4727 INSTALL=$install
4728 LIBTARGET=${LIBTARGET}
4729 SLIBNAME=${SLIBNAME}
4730 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4731 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4732 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4733 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4734 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4735 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4736 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4737 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4738 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4739 NOREDZONE_FLAGS=$noredzone_flags
4740 EOF
4741
4742 get_version(){
4743     lcname=lib${1}
4744     name=$(toupper $lcname)
4745     file=$source_path/$lcname/version.h
4746     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4747     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4748     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4749     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4750     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4751 }
4752
4753 map 'get_version $v' $LIBRARY_LIST
4754
4755 cat > $TMPH <<EOF
4756 /* Automatically generated by configure - do not modify! */
4757 #ifndef FFMPEG_CONFIG_H
4758 #define FFMPEG_CONFIG_H
4759 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4760 #define FFMPEG_LICENSE "$(c_escape $license)"
4761 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4762 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4763 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4764 #define av_restrict $_restrict
4765 #define EXTERN_PREFIX "${extern_prefix}"
4766 #define EXTERN_ASM ${extern_prefix}
4767 #define SLIBSUF "$SLIBSUF"
4768 #define HAVE_MMX2 HAVE_MMXEXT
4769 EOF
4770
4771 test -n "$assert_level" &&
4772     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4773
4774 test -n "$malloc_prefix" &&
4775     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4776
4777 if enabled yasm; then
4778     append config_files $TMPASM
4779     printf '' >$TMPASM
4780 fi
4781
4782 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4783
4784
4785 mkdir -p doc
4786 echo "@c auto-generated by configure" > doc/config.texi
4787
4788 print_config ARCH_   "$config_files" $ARCH_LIST
4789 print_config HAVE_   "$config_files" $HAVE_LIST
4790 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4791                                      $CONFIG_EXTRA      \
4792                                      $ALL_COMPONENTS    \
4793
4794 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4795 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4796
4797 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4798 cp_if_changed $TMPH config.h
4799 touch .config
4800
4801 enabled yasm && cp_if_changed $TMPASM config.asm
4802
4803 cat > $TMPH <<EOF
4804 /* Generated by ffconf */
4805 #ifndef AVUTIL_AVCONFIG_H
4806 #define AVUTIL_AVCONFIG_H
4807 EOF
4808
4809 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4810
4811 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4812
4813 cp_if_changed $TMPH libavutil/avconfig.h
4814
4815 if test -n "$WARNINGS"; then
4816     printf "\n$WARNINGS"
4817     enabled fatal_warnings && exit 1
4818 fi
4819
4820 # build pkg-config files
4821
4822 pkgconfig_generate(){
4823     name=$1
4824     shortname=${name#lib}${build_suffix}
4825     comment=$2
4826     version=$3
4827     libs=$4
4828     requires=$5
4829     enabled ${name#lib} || return 0
4830     mkdir -p $name
4831     cat <<EOF > $name/$name${build_suffix}.pc
4832 prefix=$prefix
4833 exec_prefix=\${prefix}
4834 libdir=$libdir
4835 includedir=$incdir
4836
4837 Name: $name
4838 Description: $comment
4839 Version: $version
4840 Requires: $(enabled shared || echo $requires)
4841 Requires.private: $(enabled shared && echo $requires)
4842 Conflicts:
4843 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4844 Libs.private: $(enabled shared && echo $libs)
4845 Cflags: -I\${includedir}
4846 EOF
4847
4848 mkdir -p doc/examples/pc-uninstalled
4849 includedir=${source_path}
4850 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4851     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4852 prefix=
4853 exec_prefix=
4854 libdir=\${pcfiledir}/../../../$name
4855 includedir=${includedir}
4856
4857 Name: $name
4858 Description: $comment
4859 Version: $version
4860 Requires: $requires
4861 Conflicts:
4862 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4863 Cflags: -I\${includedir}
4864 EOF
4865 }
4866
4867 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4868 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4869 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4870 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4871 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4872 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4873 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4874 lavfi_libs=${lavfi_libs%, }
4875
4876 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4877 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4878
4879 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
4880 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4881 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4882 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
4883 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4884 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4885 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4886 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4887 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4888
4889 fix_ffmpeg_remote(){
4890     git_remote_from=$1
4891     git_remote_to=$2
4892     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4893     if [ "$fixme_remote" != "" ]; then
4894         echolog "
4895 Outdated domain in git config, the official domain for ffmpeg git is since
4896 November 2011, source.ffmpeg.org, both the old and the new point to the same
4897 repository and server. To update it enter the following commands:
4898 "
4899         for remote in $fixme_remote; do
4900             echolog "git remote set-url $remote $git_remote_to"
4901         done
4902     fi
4903 }
4904
4905 if test -f "$source_path/.git/config"; then
4906     remote_from=git.videolan.org
4907     remote_to=source.ffmpeg.org
4908     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4909     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4910 fi