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_videoio_h
1539     termios_h
1540     texi2html
1541     threads
1542     unistd_h
1543     usleep
1544     vfp_args
1545     VirtualAlloc
1546     windows_h
1547     winsock2_h
1548     xform_asm
1549     xmm_clobbers
1550 "
1551
1552 # options emitted with CONFIG_ prefix but not available on the command line
1553 CONFIG_EXTRA="
1554     aandcttables
1555     ac3dsp
1556     audio_frame_queue
1557     dsputil
1558     frame_thread_encoder
1559     gcrypt
1560     golomb
1561     gplv3
1562     h264chroma
1563     h264dsp
1564     h264pred
1565     h264qpel
1566     hpeldsp
1567     huffman
1568     lgplv3
1569     lpc
1570     mpegaudio
1571     mpegaudiodsp
1572     mpegvideo
1573     mpegvideoenc
1574     nettle
1575     rangecoder
1576     rtpdec
1577     rtpenc_chain
1578     sinewin
1579     videodsp
1580     vp3dsp
1581 "
1582
1583 CMDLINE_SELECT="
1584     $ARCH_EXT_LIST
1585     $CONFIG_LIST
1586     $HAVE_LIST_CMDLINE
1587     $THREADS_LIST
1588     asm
1589     cross_compile
1590     debug
1591     extra_warnings
1592     logging
1593     lto
1594     optimizations
1595     stripping
1596 "
1597
1598 PATHS_LIST='
1599     bindir
1600     datadir
1601     incdir
1602     libdir
1603     mandir
1604     prefix
1605     shlibdir
1606 '
1607
1608 CMDLINE_SET="
1609     $PATHS_LIST
1610     ar
1611     arch
1612     as
1613     assert_level
1614     build_suffix
1615     cc
1616     cpu
1617     cross_prefix
1618     cxx
1619     dep_cc
1620     extra_version
1621     host_cc
1622     host_cflags
1623     host_ld
1624     host_ldflags
1625     host_libs
1626     host_os
1627     install
1628     ld
1629     logfile
1630     malloc_prefix
1631     nm
1632     optflags
1633     pkg_config
1634     progs_suffix
1635     random_seed
1636     samples
1637     strip
1638     sysinclude
1639     sysroot
1640     target_exec
1641     target_os
1642     target_path
1643     target_samples
1644     toolchain
1645     valgrind
1646     yasmexe
1647 "
1648
1649 CMDLINE_APPEND="
1650     extra_cflags
1651     extra_cxxflags
1652     host_cppflags
1653 "
1654
1655 # code dependency declarations
1656
1657 # architecture extensions
1658
1659 armv5te_deps="arm"
1660 armv6_deps="arm"
1661 armv6t2_deps="arm"
1662 neon_deps="arm"
1663 vfp_deps="arm"
1664 vfpv3_deps="vfp"
1665
1666 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1667
1668 mipsfpu_deps="mips"
1669 mips32r2_deps="mips"
1670 mipsdspr1_deps="mips"
1671 mipsdspr2_deps="mips"
1672
1673 altivec_deps="ppc"
1674 ppc4xx_deps="ppc"
1675
1676 vis_deps="sparc"
1677
1678 x86_64_suggest="fast_cmov i686"
1679
1680 amd3dnow_deps="mmx"
1681 amd3dnowext_deps="amd3dnow"
1682 mmx_deps="x86"
1683 mmxext_deps="mmx"
1684 sse_deps="mmxext"
1685 sse2_deps="sse"
1686 sse3_deps="sse2"
1687 ssse3_deps="sse3"
1688 sse4_deps="ssse3"
1689 sse42_deps="sse4"
1690 avx_deps="sse42"
1691 fma4_deps="avx"
1692
1693 mmx_external_deps="yasm"
1694 mmx_inline_deps="inline_asm"
1695 mmx_suggest="mmx_external mmx_inline"
1696
1697 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1698     eval dep=\$${ext}_deps
1699     eval ${ext}_external_deps='"${dep}_external"'
1700     eval ${ext}_inline_deps='"${dep}_inline"'
1701     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1702 done
1703
1704 aligned_stack_if_any="ppc x86"
1705 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1706 fast_clz_if_any="alpha avr32 mips ppc x86"
1707 fast_unaligned_if_any="ppc x86"
1708
1709 inline_asm_deps="!tms470"
1710 need_memalign="altivec neon sse"
1711
1712 symver_if_any="symver_asm_label symver_gnu_asm"
1713
1714 log2_deps="!msvcrt"
1715
1716 # subsystems
1717 dct_select="rdft"
1718 error_resilience_select="dsputil"
1719 frame_thread_encoder_deps="encoders threads"
1720 lpc_select="dsputil"
1721 mdct_select="fft"
1722 rdft_select="fft"
1723 mpegaudio_select="mpegaudiodsp"
1724 mpegaudiodsp_select="dct"
1725 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1726 mpegvideoenc_select="mpegvideo"
1727
1728 # decoders / encoders
1729 aac_decoder_select="mdct sinewin"
1730 aac_encoder_select="audio_frame_queue mdct sinewin"
1731 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1732 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1733 ac3_encoder_select="mdct ac3dsp dsputil"
1734 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1735 aic_decoder_select="dsputil golomb"
1736 alac_encoder_select="lpc"
1737 als_decoder_select="dsputil"
1738 amrnb_decoder_select="lsp"
1739 amrwb_decoder_select="lsp"
1740 amv_decoder_select="dsputil hpeldsp"
1741 amv_encoder_select="aandcttables"
1742 ape_decoder_select="dsputil"
1743 asv1_decoder_select="dsputil"
1744 asv1_encoder_select="dsputil"
1745 asv2_decoder_select="dsputil"
1746 asv2_encoder_select="dsputil"
1747 atrac1_decoder_select="mdct sinewin"
1748 atrac3_decoder_select="mdct"
1749 bink_decoder_select="dsputil hpeldsp"
1750 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1751 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1752 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1753 cllc_decoder_select="dsputil"
1754 comfortnoise_encoder_select="lpc"
1755 cook_decoder_select="dsputil mdct sinewin"
1756 cscd_decoder_select="lzo"
1757 cscd_decoder_suggest="zlib"
1758 dca_decoder_select="mdct"
1759 dirac_decoder_select="dsputil dwt golomb videodsp"
1760 dnxhd_decoder_select="dsputil"
1761 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1762 dvvideo_decoder_select="dsputil"
1763 dvvideo_encoder_select="dsputil"
1764 dxa_decoder_select="zlib"
1765 eac3_decoder_select="ac3_decoder"
1766 eac3_encoder_select="ac3_encoder"
1767 eamad_decoder_select="aandcttables dsputil mpegvideo"
1768 eatgq_decoder_select="aandcttables"
1769 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1770 exr_decoder_select="zlib"
1771 ffv1_decoder_select="dsputil golomb rangecoder"
1772 ffv1_encoder_select="dsputil rangecoder"
1773 ffvhuff_decoder_select="dsputil"
1774 ffvhuff_encoder_select="dsputil huffman"
1775 flac_decoder_select="golomb"
1776 flac_encoder_select="dsputil golomb lpc"
1777 flashsv_decoder_select="zlib"
1778 flashsv_encoder_select="zlib"
1779 flashsv2_encoder_select="zlib"
1780 flashsv2_decoder_select="zlib"
1781 flv_decoder_select="h263_decoder"
1782 flv_encoder_select="h263_encoder"
1783 fourxm_decoder_select="dsputil"
1784 fraps_decoder_select="dsputil huffman"
1785 g2m_decoder_select="dsputil zlib"
1786 g729_decoder_select="dsputil"
1787 h261_decoder_select="error_resilience mpegvideo"
1788 h261_encoder_select="aandcttables mpegvideoenc"
1789 h263_decoder_select="error_resilience h263_parser mpegvideo"
1790 h263_encoder_select="aandcttables mpegvideoenc"
1791 h263i_decoder_select="h263_decoder"
1792 h263p_encoder_select="h263_encoder"
1793 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1794 h264_decoder_suggest="error_resilience"
1795 huffyuv_decoder_select="dsputil"
1796 huffyuv_encoder_select="dsputil huffman"
1797 iac_decoder_select="dsputil fft mdct sinewin"
1798 imc_decoder_select="dsputil fft mdct sinewin"
1799 indeo3_decoder_select="hpeldsp"
1800 interplay_video_decoder_select="hpeldsp"
1801 jpegls_decoder_select="dsputil golomb hpeldsp"
1802 jpegls_encoder_select="golomb"
1803 jv_decoder_select="dsputil"
1804 lagarith_decoder_select="dsputil"
1805 ljpeg_encoder_select="aandcttables mpegvideoenc"
1806 loco_decoder_select="golomb"
1807 mdec_decoder_select="dsputil error_resilience mpegvideo"
1808 mimic_decoder_select="dsputil hpeldsp"
1809 mjpeg_decoder_select="dsputil hpeldsp"
1810 mjpegb_decoder_select="dsputil hpeldsp"
1811 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1812 mlp_decoder_select="dsputil mlp_parser"
1813 motionpixels_decoder_select="dsputil"
1814 mp1_decoder_select="mpegaudio"
1815 mp1float_decoder_select="mpegaudio"
1816 mp2_decoder_select="mpegaudio"
1817 mp2float_decoder_select="mpegaudio"
1818 mp3_decoder_select="mpegaudio"
1819 mp3adu_decoder_select="mpegaudio"
1820 mp3adufloat_decoder_select="mpegaudio"
1821 mp3float_decoder_select="mpegaudio"
1822 mp3on4_decoder_select="mpegaudio"
1823 mp3on4float_decoder_select="mpegaudio"
1824 mpc7_decoder_select="dsputil mpegaudiodsp"
1825 mpc8_decoder_select="dsputil mpegaudiodsp"
1826 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1827 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1828 mpeg1video_decoder_select="error_resilience mpegvideo"
1829 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1830 mpeg2video_decoder_select="error_resilience mpegvideo"
1831 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1832 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1833 mpeg4_encoder_select="h263_encoder"
1834 msmpeg4v1_decoder_select="h263_decoder"
1835 msmpeg4v2_decoder_select="h263_decoder"
1836 msmpeg4v2_encoder_select="h263_encoder"
1837 msmpeg4v3_decoder_select="h263_decoder"
1838 msmpeg4v3_encoder_select="h263_encoder"
1839 mss2_decoder_select="error_resilience vc1_decoder"
1840 mxpeg_decoder_select="dsputil hpeldsp"
1841 nellymoser_decoder_select="mdct sinewin"
1842 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1843 nuv_decoder_select="dsputil lzo"
1844 png_decoder_select="zlib"
1845 png_encoder_select="dsputil zlib"
1846 prores_decoder_select="dsputil"
1847 prores_encoder_select="dsputil"
1848 qcelp_decoder_select="lsp"
1849 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1850 ra_144_encoder_select="audio_frame_queue lpc"
1851 ralf_decoder_select="golomb"
1852 rtjpeg_decoder_select="dsputil"
1853 rv10_decoder_select="error_resilience h263_decoder"
1854 rv10_encoder_select="h263_encoder"
1855 rv20_decoder_select="error_resilience h263_decoder"
1856 rv20_encoder_select="h263_encoder"
1857 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1858 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1859 shorten_decoder_select="golomb"
1860 sipr_decoder_select="lsp"
1861 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1862 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1863 sonic_decoder_select="golomb"
1864 sonic_encoder_select="golomb"
1865 sonic_ls_encoder_select="golomb"
1866 sp5x_decoder_select="dsputil hpeldsp"
1867 svq1_decoder_select="hpeldsp"
1868 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1869 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1870 svq3_decoder_suggest="error_resilience zlib"
1871 tak_decoder_select="dsputil"
1872 theora_decoder_select="vp3_decoder"
1873 tiff_decoder_suggest="zlib"
1874 tiff_encoder_suggest="zlib"
1875 thp_decoder_select="dsputil hpeldsp"
1876 truehd_decoder_select="mlp_parser"
1877 truemotion2_decoder_select="dsputil"
1878 truespeech_decoder_select="dsputil"
1879 tscc_decoder_select="zlib"
1880 twinvq_decoder_select="mdct lsp sinewin"
1881 utvideo_decoder_select="dsputil"
1882 utvideo_encoder_select="dsputil huffman"
1883 vble_decoder_select="dsputil"
1884 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1885 vc1image_decoder_select="vc1_decoder"
1886 vorbis_decoder_select="mdct"
1887 vorbis_encoder_select="mdct"
1888 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1889 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1890 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1891 vp6a_decoder_select="vp6_decoder"
1892 vp6f_decoder_select="vp6_decoder"
1893 vp8_decoder_select="h264pred videodsp"
1894 webp_decoder_select="vp8_decoder"
1895 wmapro_decoder_select="mdct sinewin"
1896 wmav1_decoder_select="mdct sinewin"
1897 wmav1_encoder_select="mdct sinewin"
1898 wmav2_decoder_select="mdct sinewin"
1899 wmav2_encoder_select="mdct sinewin"
1900 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1901 wmv1_decoder_select="h263_decoder"
1902 wmv1_encoder_select="h263_encoder"
1903 wmv2_decoder_select="h263_decoder videodsp"
1904 wmv2_encoder_select="h263_encoder"
1905 wmv3_decoder_select="vc1_decoder"
1906 wmv3image_decoder_select="wmv3_decoder"
1907 zerocodec_decoder_select="zlib"
1908 zlib_decoder_select="zlib"
1909 zlib_encoder_select="zlib"
1910 zmbv_decoder_select="zlib"
1911 zmbv_encoder_select="zlib"
1912
1913 # hardware accelerators
1914 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1915 dxva2_deps="dxva2api_h"
1916 vaapi_deps="va_va_h"
1917 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1918 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1919 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1920
1921 h263_vaapi_hwaccel_deps="vaapi"
1922 h263_vaapi_hwaccel_select="h263_decoder"
1923 h263_vdpau_hwaccel_deps="vdpau"
1924 h263_vdpau_hwaccel_select="h263_decoder"
1925 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1926 h264_dxva2_hwaccel_deps="dxva2"
1927 h264_dxva2_hwaccel_select="h264_decoder"
1928 h264_vaapi_hwaccel_deps="vaapi"
1929 h264_vaapi_hwaccel_select="h264_decoder"
1930 h264_vda_decoder_deps="vda"
1931 h264_vda_decoder_select="h264_decoder"
1932 h264_vda_hwaccel_deps="vda"
1933 h264_vda_hwaccel_select="h264_decoder"
1934 h264_vdpau_hwaccel_deps="vdpau"
1935 h264_vdpau_hwaccel_select="h264_decoder"
1936 mpeg1_vdpau_hwaccel_deps="vdpau"
1937 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1938 mpeg2_crystalhd_decoder_select="crystalhd"
1939 mpeg2_dxva2_hwaccel_deps="dxva2"
1940 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1941 mpeg2_vaapi_hwaccel_deps="vaapi"
1942 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1943 mpeg2_vdpau_hwaccel_deps="vdpau"
1944 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1945 mpeg4_crystalhd_decoder_select="crystalhd"
1946 mpeg4_vaapi_hwaccel_deps="vaapi"
1947 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1948 mpeg4_vdpau_hwaccel_deps="vdpau"
1949 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1950 msmpeg4_crystalhd_decoder_select="crystalhd"
1951 vc1_crystalhd_decoder_select="crystalhd"
1952 vc1_dxva2_hwaccel_deps="dxva2"
1953 vc1_dxva2_hwaccel_select="vc1_decoder"
1954 vc1_vaapi_hwaccel_deps="vaapi"
1955 vc1_vaapi_hwaccel_select="vc1_decoder"
1956 vc1_vdpau_hwaccel_deps="vdpau"
1957 vc1_vdpau_hwaccel_select="vc1_decoder"
1958 wmv3_crystalhd_decoder_select="crystalhd"
1959 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1960 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1961 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1962
1963 # parsers
1964 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1965 mpeg4video_parser_select="error_resilience mpegvideo"
1966 mpegvideo_parser_select="error_resilience mpegvideo"
1967 vc1_parser_select="mpegvideo"
1968
1969 # external libraries
1970 libaacplus_encoder_deps="libaacplus"
1971 libcelt_decoder_deps="libcelt"
1972 libfaac_encoder_deps="libfaac"
1973 libfaac_encoder_select="audio_frame_queue"
1974 libfdk_aac_encoder_deps="libfdk_aac"
1975 libfdk_aac_encoder_select="audio_frame_queue"
1976 libgme_demuxer_deps="libgme"
1977 libgsm_decoder_deps="libgsm"
1978 libgsm_encoder_deps="libgsm"
1979 libgsm_ms_decoder_deps="libgsm"
1980 libgsm_ms_encoder_deps="libgsm"
1981 libilbc_decoder_deps="libilbc"
1982 libilbc_encoder_deps="libilbc"
1983 libmodplug_demuxer_deps="libmodplug"
1984 libmp3lame_encoder_deps="libmp3lame"
1985 libmp3lame_encoder_select="audio_frame_queue"
1986 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1987 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1988 libopencore_amrnb_encoder_select="audio_frame_queue"
1989 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1990 libopenjpeg_decoder_deps="libopenjpeg"
1991 libopenjpeg_encoder_deps="libopenjpeg"
1992 libopus_decoder_deps="libopus"
1993 libopus_encoder_deps="libopus"
1994 libopus_encoder_select="audio_frame_queue"
1995 libquvi_demuxer_deps="libquvi"
1996 libschroedinger_decoder_deps="libschroedinger"
1997 libschroedinger_encoder_deps="libschroedinger"
1998 libshine_encoder_deps="libshine"
1999 libshine_encoder_select="audio_frame_queue"
2000 libspeex_decoder_deps="libspeex"
2001 libspeex_encoder_deps="libspeex"
2002 libspeex_encoder_select="audio_frame_queue"
2003 libstagefright_h264_decoder_deps="libstagefright_h264"
2004 libtheora_encoder_deps="libtheora"
2005 libtwolame_encoder_deps="libtwolame"
2006 libvo_aacenc_encoder_deps="libvo_aacenc"
2007 libvo_aacenc_encoder_select="audio_frame_queue"
2008 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2009 libvorbis_decoder_deps="libvorbis"
2010 libvorbis_encoder_deps="libvorbis"
2011 libvorbis_encoder_select="audio_frame_queue"
2012 libvpx_vp8_decoder_deps="libvpx"
2013 libvpx_vp8_encoder_deps="libvpx"
2014 libvpx_vp9_decoder_deps="libvpx"
2015 libvpx_vp9_encoder_deps="libvpx"
2016 libwavpack_encoder_deps="libwavpack"
2017 libx264_encoder_deps="libx264"
2018 libx264rgb_encoder_deps="libx264"
2019 libxavs_encoder_deps="libxavs"
2020 libxvid_encoder_deps="libxvid"
2021 libutvideo_decoder_deps="libutvideo"
2022 libutvideo_encoder_deps="libutvideo"
2023
2024 # demuxers / muxers
2025 ac3_demuxer_select="ac3_parser"
2026 asf_stream_muxer_select="asf_muxer"
2027 avisynth_demuxer_deps="avisynth"
2028 dirac_demuxer_select="dirac_parser"
2029 dts_demuxer_select="dca_parser"
2030 dtshd_demuxer_select="dca_parser"
2031 eac3_demuxer_select="ac3_parser"
2032 f4v_muxer_select="mov_muxer"
2033 flac_demuxer_select="flac_parser"
2034 ipod_muxer_select="mov_muxer"
2035 ismv_muxer_select="mov_muxer"
2036 libnut_demuxer_deps="libnut"
2037 libnut_muxer_deps="libnut"
2038 matroska_audio_muxer_select="matroska_muxer"
2039 matroska_demuxer_suggest="bzlib lzo zlib"
2040 mov_demuxer_suggest="zlib"
2041 mov_muxer_select="rtpenc_chain"
2042 mp3_demuxer_select="mpegaudio_parser"
2043 mp4_muxer_select="mov_muxer"
2044 mpegts_muxer_select="adts_muxer latm_muxer"
2045 mpegtsraw_demuxer_select="mpegts_demuxer"
2046 mxf_d10_muxer_select="mxf_muxer"
2047 ogg_demuxer_select="golomb"
2048 psp_muxer_select="mov_muxer"
2049 rtp_demuxer_select="sdp_demuxer"
2050 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2051 rtsp_demuxer_select="http_protocol rtpdec"
2052 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2053 sap_demuxer_select="sdp_demuxer"
2054 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2055 sdp_demuxer_select="rtpdec"
2056 smoothstreaming_muxer_select="ismv_muxer"
2057 spdif_muxer_select="aac_parser"
2058 tak_demuxer_select="tak_parser"
2059 tg2_muxer_select="mov_muxer"
2060 tgp_muxer_select="mov_muxer"
2061 vobsub_demuxer_select="mpegps_demuxer"
2062 w64_demuxer_deps="wav_demuxer"
2063 w64_muxer_deps="wav_muxer"
2064
2065 # indevs / outdevs
2066 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2067 alsa_outdev_deps="alsa_asoundlib_h"
2068 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2069 caca_outdev_deps="libcaca"
2070 dshow_indev_deps="IBaseFilter"
2071 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2072 dv1394_indev_deps="dv1394 dv_demuxer"
2073 fbdev_indev_deps="linux_fb_h"
2074 iec61883_indev_deps="libiec61883"
2075 jack_indev_deps="jack_jack_h sem_timedwait"
2076 lavfi_indev_deps="avfilter"
2077 libcdio_indev_deps="libcdio"
2078 libdc1394_indev_deps="libdc1394"
2079 libv4l2_indev_deps="libv4l2"
2080 openal_indev_deps="openal"
2081 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2082 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2083 pulse_indev_deps="libpulse"
2084 sdl_outdev_deps="sdl"
2085 sndio_indev_deps="sndio_h"
2086 sndio_outdev_deps="sndio_h"
2087 v4l_indev_deps="linux_videodev_h"
2088 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2089 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2090 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2091 vfwcap_indev_extralibs="-lavicap32"
2092 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2093 xv_outdev_extralibs="-lXv -lX11 -lXext"
2094 x11grab_indev_deps="x11grab"
2095
2096 # protocols
2097 bluray_protocol_deps="libbluray"
2098 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2099 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2100 ffrtmpcrypt_protocol_select="tcp_protocol"
2101 ffrtmphttp_protocol_deps="!librtmp_protocol"
2102 ffrtmphttp_protocol_select="http_protocol"
2103 ftp_protocol_select="tcp_protocol"
2104 gopher_protocol_select="network"
2105 httpproxy_protocol_select="tcp_protocol"
2106 http_protocol_select="tcp_protocol"
2107 https_protocol_select="tls_protocol"
2108 librtmp_protocol_deps="librtmp"
2109 librtmpe_protocol_deps="librtmp"
2110 librtmps_protocol_deps="librtmp"
2111 librtmpt_protocol_deps="librtmp"
2112 librtmpte_protocol_deps="librtmp"
2113 mmsh_protocol_select="http_protocol"
2114 mmst_protocol_select="network"
2115 rtmp_protocol_deps="!librtmp_protocol"
2116 rtmp_protocol_select="tcp_protocol"
2117 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2118 rtmps_protocol_deps="!librtmp_protocol"
2119 rtmps_protocol_select="tls_protocol"
2120 rtmpt_protocol_select="ffrtmphttp_protocol"
2121 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2122 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2123 rtp_protocol_select="udp_protocol"
2124 sctp_protocol_deps="struct_sctp_event_subscribe"
2125 sctp_protocol_select="network"
2126 srtp_protocol_select="rtp_protocol"
2127 tcp_protocol_select="network"
2128 tls_protocol_deps_any="openssl gnutls"
2129 tls_protocol_select="tcp_protocol"
2130 udp_protocol_select="network"
2131
2132 # filters
2133 aconvert_filter_deps="swresample"
2134 amovie_filter_deps="avcodec avformat"
2135 aresample_filter_deps="swresample"
2136 ass_filter_deps="libass"
2137 asyncts_filter_deps="avresample"
2138 atempo_filter_deps="avcodec rdft"
2139 azmq_filter_deps="libzmq"
2140 blackframe_filter_deps="gpl"
2141 boxblur_filter_deps="gpl"
2142 colormatrix_filter_deps="gpl"
2143 cropdetect_filter_deps="gpl"
2144 dctdnoiz_filter_deps="avcodec fft"
2145 delogo_filter_deps="gpl"
2146 deshake_filter_deps="avcodec"
2147 deshake_filter_select="dsputil"
2148 drawtext_filter_deps="libfreetype"
2149 ebur128_filter_deps="gpl"
2150 flite_filter_deps="libflite"
2151 frei0r_filter_deps="frei0r dlopen"
2152 frei0r_filter_extralibs='$ldl'
2153 frei0r_src_filter_deps="frei0r dlopen"
2154 frei0r_src_filter_extralibs='$ldl'
2155 geq_filter_deps="gpl"
2156 histeq_filter_deps="gpl"
2157 hqdn3d_filter_deps="gpl"
2158 hue_filter_deps="gpl"
2159 interlace_filter_deps="gpl"
2160 kerndeint_filter_deps="gpl"
2161 mcdeint_filter_deps="avcodec gpl"
2162 movie_filter_deps="avcodec avformat"
2163 mp_filter_deps="gpl avcodec swscale inline_asm"
2164 mpdecimate_filter_deps="gpl avcodec"
2165 mptestsrc_filter_deps="gpl"
2166 negate_filter_deps="lut_filter"
2167 noise_filter_deps="gpl"
2168 perspective_filter_deps="gpl"
2169 resample_filter_deps="avresample"
2170 ocv_filter_deps="libopencv"
2171 owdenoise_filter_deps="gpl"
2172 pan_filter_deps="swresample"
2173 pp_filter_deps="gpl postproc"
2174 removelogo_filter_deps="avcodec avformat swscale"
2175 sab_filter_deps="gpl swscale"
2176 scale_filter_deps="swscale"
2177 smartblur_filter_deps="gpl swscale"
2178 showspectrum_filter_deps="avcodec rdft"
2179 spp_filter_deps="gpl avcodec fft"
2180 stereo3d_filter_deps="gpl"
2181 subtitles_filter_deps="avformat avcodec libass"
2182 super2xsai_filter_deps="gpl"
2183 tinterlace_filter_deps="gpl"
2184 vidstabdetect_filter_deps="libvidstab"
2185 vidstabtransform_filter_deps="libvidstab"
2186 yadif_filter_deps="gpl"
2187 pixfmts_super2xsai_test_deps="super2xsai_filter"
2188 tinterlace_merge_test_deps="tinterlace_filter"
2189 tinterlace_pad_test_deps="tinterlace_filter"
2190 zmq_filter_deps="libzmq"
2191
2192 # libraries
2193 avcodec_deps="avutil"
2194 avdevice_deps="avutil avcodec avformat"
2195 avfilter_deps="avutil"
2196 avformat_deps="avutil avcodec"
2197 avresample_deps="avutil"
2198 postproc_deps="avutil gpl"
2199 swscale_deps="avutil"
2200
2201 # programs
2202 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2203 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2204                null_filter
2205                setpts_filter trim_filter"
2206 ffplay_deps="avcodec avformat swscale swresample sdl"
2207 ffplay_select="rdft crop_filter"
2208 ffprobe_deps="avcodec avformat"
2209 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer sarestart"
2210 ffserver_extralibs='$ldl'
2211
2212 # documentation
2213 podpages_deps="perl"
2214 manpages_deps="perl pod2man"
2215 htmlpages_deps="texi2html"
2216 txtpages_deps="makeinfo"
2217 doc_deps_any="manpages htmlpages podpages txtpages"
2218
2219 # default parameters
2220
2221 logfile="config.log"
2222
2223 # installation paths
2224 prefix_default="/usr/local"
2225 bindir_default='${prefix}/bin'
2226 datadir_default='${prefix}/share/ffmpeg'
2227 incdir_default='${prefix}/include'
2228 libdir_default='${prefix}/lib'
2229 mandir_default='${prefix}/share/man'
2230 shlibdir_default="$libdir_default"
2231
2232 # toolchain
2233 ar_default="ar"
2234 cc_default="gcc"
2235 cxx_default="g++"
2236 host_cc_default="gcc"
2237 cp_f="cp -f"
2238 install="install"
2239 ln_s="ln -s -f"
2240 nm_default="nm -g"
2241 objformat="elf"
2242 pkg_config_default=pkg-config
2243 ranlib="ranlib"
2244 strip_default="strip"
2245 yasmexe_default="yasm"
2246
2247 nogas=":"
2248
2249 # machine
2250 arch_default=$(uname -m)
2251 cpu="generic"
2252
2253 # OS
2254 target_os_default=$(tolower $(uname -s))
2255 host_os=$target_os_default
2256
2257 # configurable options
2258 enable $PROGRAM_LIST
2259 enable $DOCUMENT_LIST
2260 enable $(filter_out avresample $LIBRARY_LIST)
2261 enable stripping
2262
2263 enable asm
2264 enable debug
2265 enable doc
2266 enable optimizations
2267 enable runtime_cpudetect
2268 enable safe_bitstream_reader
2269 enable static
2270 enable swscale_alpha
2271
2272 # Enable hwaccels by default.
2273 enable dxva2 vaapi vdpau
2274
2275 # build settings
2276 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2277 LIBPREF="lib"
2278 LIBSUF=".a"
2279 FULLNAME='$(NAME)$(BUILDSUF)'
2280 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2281 SLIBPREF="lib"
2282 SLIBSUF=".so"
2283 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2284 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2285 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2286 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2287 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2288 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2289
2290 asflags_filter=echo
2291 cflags_filter=echo
2292 ldflags_filter=echo
2293
2294 AS_C='-c'
2295 AS_O='-o $@'
2296 CC_C='-c'
2297 CC_E='-E -o $@'
2298 CC_O='-o $@'
2299 CXX_C='-c'
2300 CXX_O='-o $@'
2301 LD_O='-o $@'
2302 LD_LIB='-l%'
2303 LD_PATH='-L'
2304 HOSTCC_C='-c'
2305 HOSTCC_O='-o $@'
2306 HOSTLD_O='-o $@'
2307
2308 host_cflags='-O3 -g'
2309 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2310 host_libs='-lm'
2311 host_cflags_filter=echo
2312 host_ldflags_filter=echo
2313
2314 target_path='$(CURDIR)'
2315
2316 # since the object filename is not given with the -MM flag, the compiler
2317 # is only able to print the basename, and we must add the path ourselves
2318 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2319 DEPFLAGS='-MM'
2320
2321 # find source path
2322 if test -f configure; then
2323     source_path=.
2324 else
2325     source_path=$(cd $(dirname "$0"); pwd)
2326     echo "$source_path" | grep -q '[[:blank:]]' &&
2327         die "Out of tree builds are impossible with whitespace in source path."
2328     test -e "$source_path/config.h" &&
2329         die "Out of tree builds are impossible with config.h in source dir."
2330 fi
2331
2332 for v in "$@"; do
2333     r=${v#*=}
2334     l=${v%"$r"}
2335     r=$(sh_quote "$r")
2336     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2337 done
2338
2339 find_things(){
2340     thing=$1
2341     pattern=$2
2342     file=$source_path/$3
2343     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2344 }
2345
2346 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2347 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2348 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2349 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2350 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2351 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2352 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2353 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2354 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2355 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2356 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2357
2358 ALL_COMPONENTS="
2359     $BSF_LIST
2360     $DECODER_LIST
2361     $DEMUXER_LIST
2362     $ENCODER_LIST
2363     $FILTER_LIST
2364     $HWACCEL_LIST
2365     $INDEV_LIST
2366     $MUXER_LIST
2367     $OUTDEV_LIST
2368     $PARSER_LIST
2369     $PROTOCOL_LIST
2370 "
2371
2372 for n in $COMPONENT_LIST; do
2373     v=$(toupper ${n%s})_LIST
2374     eval enable \$$v
2375     eval ${n}_if_any="\$$v"
2376 done
2377
2378 enable $ARCH_EXT_LIST
2379
2380 die_unknown(){
2381     echo "Unknown option \"$1\"."
2382     echo "See $0 --help for available options."
2383     exit 1
2384 }
2385
2386 print_3_columns() {
2387     cat | tr ' ' '\n' | sort | pr -r -3 -t
2388 }
2389
2390 show_list() {
2391     suffix=_$1
2392     shift
2393     echo $* | sed s/$suffix//g | print_3_columns
2394     exit 0
2395 }
2396
2397 rand_list(){
2398     IFS=', '
2399     set -- $*
2400     unset IFS
2401     for thing; do
2402         comp=${thing%:*}
2403         prob=${thing#$comp}
2404         prob=${prob#:}
2405         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2406         echo "prob ${prob:-0.5}"
2407         printf '%s\n' $comp
2408     done
2409 }
2410
2411 do_random(){
2412     action=$1
2413     shift
2414     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2415     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2416 }
2417
2418 for opt do
2419     optval="${opt#*=}"
2420     case "$opt" in
2421         --extra-ldflags=*)
2422             add_ldflags $optval
2423         ;;
2424         --extra-libs=*)
2425             add_extralibs $optval
2426         ;;
2427         --disable-devices)
2428             disable $INDEV_LIST $OUTDEV_LIST
2429         ;;
2430         --enable-debug=*)
2431             debuglevel="$optval"
2432         ;;
2433         --disable-programs)
2434             disable $PROGRAM_LIST
2435         ;;
2436         --disable-everything)
2437             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2438         ;;
2439         --disable-all)
2440             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2441             disable $LIBRARY_LIST $PROGRAM_LIST doc
2442         ;;
2443         --enable-random|--disable-random)
2444             action=${opt%%-random}
2445             do_random ${action#--} $COMPONENT_LIST
2446         ;;
2447         --enable-random=*|--disable-random=*)
2448             action=${opt%%-random=*}
2449             do_random ${action#--} $optval
2450         ;;
2451         --enable-*=*|--disable-*=*)
2452             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2453             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2454             eval list=\$$(toupper $thing)_LIST
2455             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2456             list=$(filter "$name" $list)
2457             [ "$list" = "" ] && warn "Option $opt did not match anything"
2458             $action $list
2459         ;;
2460         --enable-?*|--disable-?*)
2461             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2462             if is_in $option $COMPONENT_LIST; then
2463                 test $action = disable && action=unset
2464                 eval $action \$$(toupper ${option%s})_LIST
2465             elif is_in $option $CMDLINE_SELECT; then
2466                 $action $option
2467             else
2468                 die_unknown $opt
2469             fi
2470         ;;
2471         --list-*)
2472             NAME="${opt#--list-}"
2473             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2474             NAME=${NAME%s}
2475             eval show_list $NAME \$$(toupper $NAME)_LIST
2476         ;;
2477         --help|-h) show_help
2478         ;;
2479         --fatal-warnings) enable fatal_warnings
2480         ;;
2481         *)
2482             optname="${opt%%=*}"
2483             optname="${optname#--}"
2484             optname=$(echo "$optname" | sed 's/-/_/g')
2485             if is_in $optname $CMDLINE_SET; then
2486                 eval $optname='$optval'
2487             elif is_in $optname $CMDLINE_APPEND; then
2488                 append $optname "$optval"
2489             else
2490                 die_unknown $opt
2491             fi
2492         ;;
2493     esac
2494 done
2495
2496 disabled logging && logfile=/dev/null
2497
2498 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2499 set >> $logfile
2500
2501 test -n "$cross_prefix" && enable cross_compile
2502
2503 if enabled cross_compile; then
2504     test -n "$arch" && test -n "$target_os" ||
2505         die "Must specify target arch and OS when cross-compiling"
2506 fi
2507
2508 ar_default="${cross_prefix}${ar_default}"
2509 cc_default="${cross_prefix}${cc_default}"
2510 cxx_default="${cross_prefix}${cxx_default}"
2511 nm_default="${cross_prefix}${nm_default}"
2512 pkg_config_default="${cross_prefix}${pkg_config_default}"
2513 ranlib="${cross_prefix}${ranlib}"
2514 strip_default="${cross_prefix}${strip_default}"
2515
2516 sysinclude_default="${sysroot}/usr/include"
2517
2518 test -n "$valgrind" && toolchain="valgrind-memcheck"
2519
2520 case "$toolchain" in
2521     clang-asan)
2522         cc_default="clang"
2523         add_cflags  -fsanitize=address
2524         add_ldflags -fsanitize=address
2525     ;;
2526     clang-tsan)
2527         cc_default="clang"
2528         add_cflags  -fsanitize=thread -pie
2529         add_ldflags -fsanitize=thread -pie
2530     ;;
2531     gcc-asan)
2532         cc_default="gcc"
2533         add_cflags  -fsanitize=address
2534         add_ldflags -fsanitize=address
2535     ;;
2536     gcc-tsan)
2537         cc_default="gcc"
2538         add_cflags  -fsanitize=thread -pie -fPIC
2539         add_ldflags -fsanitize=thread -pie -fPIC
2540     ;;
2541     valgrind-massif)
2542         target_exec_default=${valgrind:-"valgrind"}
2543         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"
2544     ;;
2545     valgrind-memcheck)
2546         target_exec_default=${valgrind:-"valgrind"}
2547         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2548     ;;
2549     msvc)
2550         cc_default="c99wrap cl"
2551         ld_default="c99wrap link"
2552         nm_default="dumpbin -symbols"
2553         ar_default="lib"
2554         target_os_default="win32"
2555     ;;
2556     icl)
2557         cc_default="c99wrap -noconv icl"
2558         ld_default="c99wrap xilink"
2559         nm_default="dumpbin -symbols"
2560         ar_default="xilib"
2561         target_os_default="win32"
2562     ;;
2563     gcov)
2564         add_cflags  -fprofile-arcs -ftest-coverage
2565         add_ldflags -fprofile-arcs -ftest-coverage
2566     ;;
2567     ?*)
2568         die "Unknown toolchain $toolchain"
2569     ;;
2570 esac
2571
2572 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2573 enabled cross_compile || host_cc_default=$cc
2574 set_default host_cc
2575
2576 if ! $pkg_config --version >/dev/null 2>&1; then
2577     warn "$pkg_config not found, library detection may fail."
2578     pkg_config=false
2579 fi
2580
2581 exesuf() {
2582     case $1 in
2583         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2584     esac
2585 }
2586
2587 EXESUF=$(exesuf $target_os)
2588 HOSTEXESUF=$(exesuf $host_os)
2589
2590 # set temporary file name
2591 : ${TMPDIR:=$TEMPDIR}
2592 : ${TMPDIR:=$TMP}
2593 : ${TMPDIR:=/tmp}
2594
2595 if ! check_cmd mktemp -u XXXXXX; then
2596     # simple replacement for missing mktemp
2597     # NOT SAFE FOR GENERAL USE
2598     mktemp(){
2599         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2600     }
2601 fi
2602
2603 tmpfile(){
2604     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2605         (set -C; exec > $tmp) 2>/dev/null ||
2606         die "Unable to create temporary file in $TMPDIR."
2607     append TMPFILES $tmp
2608     eval $1=$tmp
2609 }
2610
2611 trap 'rm -f -- $TMPFILES' EXIT
2612
2613 tmpfile TMPASM .asm
2614 tmpfile TMPC   .c
2615 tmpfile TMPCPP .cpp
2616 tmpfile TMPE   $EXESUF
2617 tmpfile TMPH   .h
2618 tmpfile TMPO   .o
2619 tmpfile TMPS   .S
2620 tmpfile TMPSH  .sh
2621 tmpfile TMPV   .ver
2622
2623 unset -f mktemp
2624
2625 chmod +x $TMPE
2626
2627 # make sure we can execute files in $TMPDIR
2628 cat > $TMPSH 2>> $logfile <<EOF
2629 #! /bin/sh
2630 EOF
2631 chmod +x $TMPSH >> $logfile 2>&1
2632 if ! $TMPSH >> $logfile 2>&1; then
2633     cat <<EOF
2634 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2635 variable to another directory and make sure that it is not mounted noexec.
2636 EOF
2637     die "Sanity test failed."
2638 fi
2639
2640 ccc_flags(){
2641     for flag; do
2642         case $flag in
2643             -std=c99)           echo -c99                       ;;
2644             -mcpu=*)            echo -arch ${flag#*=}           ;;
2645             -mieee)             echo -ieee                      ;;
2646             -O*|-fast)          echo $flag                      ;;
2647             -fno-math-errno)    echo -assume nomath_errno       ;;
2648             -g)                 echo -g3                        ;;
2649             -Wall)              echo -msg_enable level2         ;;
2650             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2651             -Wl,*)              echo $flag                      ;;
2652             -f*|-W*)                                            ;;
2653             *)                  echo $flag                      ;;
2654         esac
2655    done
2656 }
2657
2658 msvc_common_flags(){
2659     for flag; do
2660         case $flag in
2661             # In addition to specifying certain flags under the compiler
2662             # specific filters, they must be specified here as well or else the
2663             # generic catch all at the bottom will print the original flag.
2664             -Wall)                ;;
2665             -std=c99)             ;;
2666             # Common flags
2667             -fomit-frame-pointer) ;;
2668             -g)                   echo -Z7 ;;
2669             -fno-math-errno)      ;;
2670             -fno-common)          ;;
2671             -fno-signed-zeros)    ;;
2672             -fPIC)                ;;
2673             -mthumb)              ;;
2674             -march=*)             ;;
2675             -lz)                  echo zlib.lib ;;
2676             -lavifil32)           echo vfw32.lib ;;
2677             -lavicap32)           echo vfw32.lib user32.lib ;;
2678             -l*)                  echo ${flag#-l}.lib ;;
2679             *)                    echo $flag ;;
2680         esac
2681     done
2682 }
2683
2684 msvc_flags(){
2685     msvc_common_flags "$@"
2686     for flag; do
2687         case $flag in
2688             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2689                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2690                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2691                                        -wd4554 \
2692                                        -wd4996 -wd4273 ;;
2693         esac
2694     done
2695 }
2696
2697 icl_flags(){
2698     msvc_common_flags "$@"
2699     for flag; do
2700         case $flag in
2701             # Despite what Intel's documentation says -Wall, which is supported
2702             # on Windows, does enable remarks so disable them here.
2703             -Wall)                echo $flag -Qdiag-disable:remark ;;
2704             -std=c99)             echo -Qstd=c99 ;;
2705         esac
2706     done
2707 }
2708
2709 pgi_flags(){
2710     for flag; do
2711         case $flag in
2712             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2713             -fomit-frame-pointer) echo -Mnoframe ;;
2714             -g)                   echo -gopt ;;
2715             *)                    echo $flag ;;
2716         esac
2717     done
2718 }
2719
2720 suncc_flags(){
2721     for flag; do
2722         case $flag in
2723             -march=*|-mcpu=*)
2724                 case "${flag#*=}" in
2725                     native)                   echo -xtarget=native       ;;
2726                     v9|niagara)               echo -xarch=sparc          ;;
2727                     ultrasparc)               echo -xarch=sparcvis       ;;
2728                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2729                     i586|pentium)             echo -xchip=pentium        ;;
2730                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2731                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2732                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2733                     pentium4*)          echo -xtarget=pentium4           ;;
2734                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2735                     *-sse3)             echo -xarch=sse3                 ;;
2736                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2737                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2738                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2739                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2740                     bdver*)                    echo -xarch=avx           ;;
2741                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2742                     k8|opteron|athlon64|athlon-fx)
2743                                                echo -xarch=sse2a         ;;
2744                     athlon*)                   echo -xarch=pentium_proa  ;;
2745                 esac
2746                 ;;
2747             -std=c99)             echo -xc99              ;;
2748             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2749             -fPIC)                echo -KPIC -xcode=pic32 ;;
2750             -W*,*)                echo $flag              ;;
2751             -f*-*|-W*|-mimpure-text)                      ;;
2752             -shared)              echo -G                 ;;
2753             *)                    echo $flag              ;;
2754         esac
2755     done
2756 }
2757
2758 tms470_flags(){
2759     for flag; do
2760         case $flag in
2761             -march=*|-mcpu=*)
2762                 case "${flag#*=}" in
2763                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2764                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2765                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2766                     armv6*|arm11*)          echo -mv=6   ;;
2767                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2768                                             echo -mv=5e  ;;
2769                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2770                 esac
2771                 ;;
2772             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2773             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2774             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2775             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2776             -msoft-float)   echo --float_support=vfplib       ;;
2777             -O[0-3]|-mf=*)  echo $flag                        ;;
2778             -g)             echo -g -mn                       ;;
2779             -pds=*)         echo $flag                        ;;
2780             -D*|-I*)        echo $flag                        ;;
2781             --gcc|--abi=*)  echo $flag                        ;;
2782             -me)            echo $flag                        ;;
2783         esac
2784     done
2785 }
2786
2787 probe_cc(){
2788     pfx=$1
2789     _cc=$2
2790
2791     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2792     unset _ld_o _ldflags _ld_lib _ld_path
2793     unset _depflags _DEPCMD _DEPFLAGS
2794     _flags_filter=echo
2795
2796     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2797         _type=llvm_gcc
2798         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2799         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2800         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2801         _cflags_speed='-O3'
2802         _cflags_size='-Os'
2803     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2804         _type=gcc
2805         gcc_version=$($_cc --version | head -n1)
2806         gcc_basever=$($_cc -dumpversion)
2807         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2808         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2809         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2810         if ! $_cc -dumpversion | grep -q '^2\.'; then
2811             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2812         fi
2813         _cflags_speed='-O3'
2814         _cflags_size='-Os'
2815     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2816         _type=icc
2817         _ident=$($_cc --version | head -n1)
2818         _depflags='-MMD'
2819         _cflags_speed='-O3'
2820         _cflags_size='-Os'
2821         _cflags_noopt='-O1'
2822     elif $_cc -v 2>&1 | grep -q xlc; then
2823         _type=xlc
2824         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2825         _cflags_speed='-O5'
2826         _cflags_size='-O5 -qcompact'
2827     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2828         _type=ccc
2829         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2830         _DEPFLAGS='-M'
2831         _cflags_speed='-fast'
2832         _cflags_size='-O1'
2833         _flags_filter=ccc_flags
2834     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2835         test -d "$sysroot" || die "No valid sysroot specified."
2836         _type=armcc
2837         _ident=$($_cc --vsn | head -n1)
2838         armcc_conf="$PWD/armcc.conf"
2839         $_cc --arm_linux_configure                 \
2840              --arm_linux_config_file="$armcc_conf" \
2841              --configure_sysroot="$sysroot"        \
2842              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2843              die "Error creating armcc configuration file."
2844         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2845         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2846         as_default="${cross_prefix}gcc"
2847         _depflags='-MMD'
2848         _cflags_speed='-O3'
2849         _cflags_size='-Os'
2850     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2851         _type=tms470
2852         _ident=$($_cc -version | head -n1 | tr -s ' ')
2853         _flags='--gcc --abi=eabi -me'
2854         _cc_e='-ppl -fe=$@'
2855         _cc_o='-fe=$@'
2856         _depflags='-ppa -ppd=$(@:.o=.d)'
2857         _cflags_speed='-O3 -mf=5'
2858         _cflags_size='-O3 -mf=2'
2859         _flags_filter=tms470_flags
2860     elif $_cc -v 2>&1 | grep -q clang; then
2861         _type=clang
2862         _ident=$($_cc --version | head -n1)
2863         _depflags='-MMD'
2864         _cflags_speed='-O3'
2865         _cflags_size='-Os'
2866     elif $_cc -V 2>&1 | grep -q Sun; then
2867         _type=suncc
2868         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2869         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2870         _DEPFLAGS='-xM1 -xc99'
2871         _ldflags='-std=c99'
2872         _cflags_speed='-O5'
2873         _cflags_size='-O5 -xspace'
2874         _flags_filter=suncc_flags
2875     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2876         _type=pathscale
2877         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2878         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2879         _cflags_speed='-O2'
2880         _cflags_size='-Os'
2881         _flags_filter='filter_out -Wdisabled-optimization'
2882     elif $_cc -v 2>&1 | grep -q Open64; then
2883         _type=open64
2884         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2885         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2886         _cflags_speed='-O2'
2887         _cflags_size='-Os'
2888         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2889     elif $_cc -V 2>&1 | grep -q Portland; then
2890         _type=pgi
2891         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2892         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2893         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2894         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2895         _cflags_noopt="-O"
2896         _flags_filter=pgi_flags
2897     elif $_cc 2>&1 | grep -q Microsoft; then
2898         _type=msvc
2899         _ident=$($cc 2>&1 | head -n1)
2900         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2901         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2902         _cflags_speed="-O2"
2903         _cflags_size="-O1"
2904         # Nonstandard output options, to avoid msys path conversion issues.
2905         # Relies on wrapper to remap it.
2906         if $_cc 2>&1 | grep -q Linker; then
2907             _ld_o='-out $@'
2908         else
2909             _ld_o='-Fe$@'
2910         fi
2911         _cc_o='-Fo $@'
2912         _cc_e='-P -Fi $@'
2913         _flags_filter=msvc_flags
2914         _ld_lib='lib%.a'
2915         _ld_path='-libpath:'
2916         _flags='-nologo'
2917         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2918         if [ $pfx = hostcc ]; then
2919             append _cflags -Dsnprintf=_snprintf
2920         fi
2921         disable stripping
2922     elif $_cc 2>&1 | grep -q Intel; then
2923         _type=icl
2924         _ident=$($cc 2>&1 | head -n1)
2925         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2926         # Not only is O3 broken on 13.x+ but it is slower on all previous
2927         # versions (tested) as well.
2928         _cflags_speed="-O2"
2929         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2930         # Nonstandard output options, to avoid msys path conversion issues.
2931         # Relies on wrapper to remap it.
2932         if $_cc 2>&1 | grep -q Linker; then
2933             _ld_o='-out $@'
2934         else
2935             _ld_o='-Fe$@'
2936         fi
2937         _cc_o='-Fo $@'
2938         _cc_e='-P'
2939         _flags_filter=icl_flags
2940         _ld_lib='lib%.a'
2941         _ld_path='-libpath:'
2942         # -Qdiag-error to make icl error when seeing certain unknown arguments
2943         _flags='-nologo -Qdiag-error:4044,10157'
2944         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2945         # with MSVC which enables it by default.
2946         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2947         if [ $pfx = hostcc ]; then
2948             append _cflags -Dsnprintf=_snprintf
2949         fi
2950     fi
2951
2952     eval ${pfx}_type=\$_type
2953     eval ${pfx}_ident=\$_ident
2954 }
2955
2956 set_ccvars(){
2957     eval ${1}_C=\${_cc_c-\${${1}_C}}
2958     eval ${1}_E=\${_cc_e-\${${1}_E}}
2959     eval ${1}_O=\${_cc_o-\${${1}_O}}
2960
2961     if [ -n "$_depflags" ]; then
2962         eval ${1}_DEPFLAGS=\$_depflags
2963     else
2964         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2965         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2966         eval DEP${1}FLAGS=\$_flags
2967     fi
2968 }
2969
2970 probe_cc cc "$cc"
2971 cflags_filter=$_flags_filter
2972 cflags_speed=$_cflags_speed
2973 cflags_size=$_cflags_size
2974 cflags_noopt=$_cflags_noopt
2975 add_cflags $_flags $_cflags
2976 cc_ldflags=$_ldflags
2977 set_ccvars CC
2978
2979 probe_cc hostcc "$host_cc"
2980 host_cflags_filter=$_flags_filter
2981 add_host_cflags  $_flags $_cflags
2982 set_ccvars HOSTCC
2983
2984 test -n "$cc_type" && enable $cc_type ||
2985     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2986
2987 : ${as_default:=$cc}
2988 : ${dep_cc_default:=$cc}
2989 : ${ld_default:=$cc}
2990 : ${host_ld_default:=$host_cc}
2991 set_default ar as dep_cc ld host_ld
2992
2993 probe_cc as "$as"
2994 asflags_filter=$_flags_filter
2995 add_asflags $_flags $_cflags
2996 set_ccvars AS
2997
2998 probe_cc ld "$ld"
2999 ldflags_filter=$_flags_filter
3000 add_ldflags $_flags $_ldflags
3001 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3002 LD_O=${_ld_o-$LD_O}
3003 LD_LIB=${_ld_lib-$LD_LIB}
3004 LD_PATH=${_ld_path-$LD_PATH}
3005
3006 probe_cc hostld "$host_ld"
3007 host_ldflags_filter=$_flags_filter
3008 add_host_ldflags $_flags $_ldflags
3009 HOSTLD_O=${_ld_o-$HOSTLD_O}
3010
3011 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3012     probe_cc depcc "$dep_cc"
3013     CCDEP=${_DEPCMD:-$DEPCMD}
3014     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3015     DEPCCFLAGS=$_flags
3016 fi
3017
3018 if $ar 2>&1 | grep -q Microsoft; then
3019     arflags="-nologo"
3020     ar_o='-out:$@'
3021 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3022     arflags="rq"
3023     ar_o='$@'
3024 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3025     arflags='-Xany -r -c'
3026     ar_o='$@'
3027 else
3028     arflags="rc"
3029     ar_o='$@'
3030 fi
3031
3032 add_cflags $extra_cflags
3033 add_cxxflags $extra_cxxflags
3034 add_asflags $extra_cflags
3035
3036 if test -n "$sysroot"; then
3037     case "$cc_type" in
3038         gcc|llvm_gcc|clang)
3039             add_cppflags --sysroot="$sysroot"
3040             add_ldflags --sysroot="$sysroot"
3041         ;;
3042         tms470)
3043             add_cppflags -I"$sysinclude"
3044             add_ldflags  --sysroot="$sysroot"
3045         ;;
3046     esac
3047 fi
3048
3049 if test "$cpu" = host; then
3050     enabled cross_compile &&
3051         die "--cpu=host makes no sense when cross-compiling."
3052
3053     case "$cc_type" in
3054         gcc|llvm_gcc)
3055             check_native(){
3056                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3057                 sed -n "/cc1.*$1=/{
3058                             s/.*$1=\\([^ ]*\\).*/\\1/
3059                             p
3060                             q
3061                         }" $TMPE
3062             }
3063             cpu=$(check_native -march || check_native -mcpu)
3064         ;;
3065     esac
3066
3067     test "${cpu:-host}" = host &&
3068         die "--cpu=host not supported with compiler $cc"
3069 fi
3070
3071 # Deal with common $arch aliases
3072 case "$arch" in
3073     aarch64|arm64)
3074         arch="aarch64"
3075     ;;
3076     arm*|iPad*|iPhone*)
3077         arch="arm"
3078     ;;
3079     mips*|IP*)
3080         arch="mips"
3081     ;;
3082     parisc*|hppa*)
3083         arch="parisc"
3084     ;;
3085     "Power Macintosh"|ppc*|powerpc*)
3086         arch="ppc"
3087     ;;
3088     s390|s390x)
3089         arch="s390"
3090     ;;
3091     sh4|sh)
3092         arch="sh4"
3093     ;;
3094     sun4u|sparc*)
3095         arch="sparc"
3096     ;;
3097     tilegx|tile-gx)
3098         arch="tilegx"
3099     ;;
3100     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3101         arch="x86"
3102     ;;
3103 esac
3104
3105 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3106 enable $arch
3107
3108 # Add processor-specific flags
3109 if enabled aarch64; then
3110
3111     case $cpu in
3112         armv*)
3113             cpuflags="-march=$cpu"
3114         ;;
3115         *)
3116             cpuflags="-mcpu=$cpu"
3117         ;;
3118     esac
3119
3120 elif enabled alpha; then
3121
3122     cpuflags="-mcpu=$cpu"
3123
3124 elif enabled arm; then
3125
3126     check_arm_arch() {
3127         check_cpp_condition stddef.h \
3128             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3129             $cpuflags
3130     }
3131
3132     probe_arm_arch() {
3133         if   check_arm_arch 4;        then echo armv4;
3134         elif check_arm_arch 4T;       then echo armv4t;
3135         elif check_arm_arch 5;        then echo armv5;
3136         elif check_arm_arch 5E;       then echo armv5e;
3137         elif check_arm_arch 5T;       then echo armv5t;
3138         elif check_arm_arch 5TE;      then echo armv5te;
3139         elif check_arm_arch 5TEJ;     then echo armv5te;
3140         elif check_arm_arch 6;        then echo armv6;
3141         elif check_arm_arch 6J;       then echo armv6j;
3142         elif check_arm_arch 6K;       then echo armv6k;
3143         elif check_arm_arch 6Z;       then echo armv6z;
3144         elif check_arm_arch 6ZK;      then echo armv6zk;
3145         elif check_arm_arch 6T2;      then echo armv6t2;
3146         elif check_arm_arch 7;        then echo armv7;
3147         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3148         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3149         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3150         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3151         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3152         fi
3153     }
3154
3155     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3156
3157     case $cpu in
3158         armv*)
3159             cpuflags="-march=$cpu"
3160             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3161         ;;
3162         *)
3163             cpuflags="-mcpu=$cpu"
3164             case $cpu in
3165                 cortex-a*)                               subarch=armv7a  ;;
3166                 cortex-r*)                               subarch=armv7r  ;;
3167                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3168                 arm11*)                                  subarch=armv6   ;;
3169                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3170                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3171                 *)                             subarch=$(probe_arm_arch) ;;
3172             esac
3173         ;;
3174     esac
3175
3176     case "$subarch" in
3177         armv5t*)    enable fast_clz                ;;
3178         armv[6-8]*) enable fast_clz fast_unaligned ;;
3179     esac
3180
3181 elif enabled avr32; then
3182
3183     case $cpu in
3184         ap7[02]0[0-2])
3185             subarch="avr32_ap"
3186             cpuflags="-mpart=$cpu"
3187         ;;
3188         ap)
3189             subarch="avr32_ap"
3190             cpuflags="-march=$cpu"
3191         ;;
3192         uc3[ab]*)
3193             subarch="avr32_uc"
3194             cpuflags="-mcpu=$cpu"
3195         ;;
3196         uc)
3197             subarch="avr32_uc"
3198             cpuflags="-march=$cpu"
3199         ;;
3200     esac
3201
3202 elif enabled bfin; then
3203
3204     cpuflags="-mcpu=$cpu"
3205
3206 elif enabled mips; then
3207
3208     cpuflags="-march=$cpu"
3209
3210     case $cpu in
3211         24kc)
3212             disable mipsfpu
3213             disable mipsdspr1
3214             disable mipsdspr2
3215         ;;
3216         24kf*)
3217             disable mipsdspr1
3218             disable mipsdspr2
3219         ;;
3220         24kec|34kc|1004kc)
3221             disable mipsfpu
3222             disable mipsdspr2
3223         ;;
3224         24kef*|34kf*|1004kf*)
3225             disable mipsdspr2
3226         ;;
3227         74kc)
3228             disable mipsfpu
3229         ;;
3230     esac
3231
3232 elif enabled ppc; then
3233
3234     case $(tolower $cpu) in
3235         601|ppc601|powerpc601)
3236             cpuflags="-mcpu=601"
3237             disable altivec
3238         ;;
3239         603*|ppc603*|powerpc603*)
3240             cpuflags="-mcpu=603"
3241             disable altivec
3242         ;;
3243         604*|ppc604*|powerpc604*)
3244             cpuflags="-mcpu=604"
3245             disable altivec
3246         ;;
3247         g3|75*|ppc75*|powerpc75*)
3248             cpuflags="-mcpu=750"
3249             disable altivec
3250         ;;
3251         g4|745*|ppc745*|powerpc745*)
3252             cpuflags="-mcpu=7450"
3253         ;;
3254         74*|ppc74*|powerpc74*)
3255             cpuflags="-mcpu=7400"
3256         ;;
3257         g5|970|ppc970|powerpc970)
3258             cpuflags="-mcpu=970"
3259         ;;
3260         power[3-7]*)
3261             cpuflags="-mcpu=$cpu"
3262         ;;
3263         cell)
3264             cpuflags="-mcpu=cell"
3265             enable ldbrx
3266         ;;
3267         e500mc)
3268             cpuflags="-mcpu=e500mc"
3269             disable altivec
3270         ;;
3271         e500v2)
3272             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3273             disable altivec
3274         ;;
3275         e500)
3276             cpuflags="-mcpu=8540 -mhard-float"
3277             disable altivec
3278         ;;
3279     esac
3280
3281 elif enabled sparc; then
3282
3283     case $cpu in
3284         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3285             cpuflags="-mcpu=$cpu"
3286             disable vis
3287         ;;
3288         ultrasparc*|niagara[234])
3289             cpuflags="-mcpu=$cpu"
3290         ;;
3291     esac
3292
3293 elif enabled x86; then
3294
3295     case $cpu in
3296         i[345]86|pentium)
3297             cpuflags="-march=$cpu"
3298             disable mmx
3299         ;;
3300         # targets that do NOT support nopl and conditional mov (cmov)
3301         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3302             cpuflags="-march=$cpu"
3303             disable i686
3304         ;;
3305         # targets that do support nopl and conditional mov (cmov)
3306         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3307             cpuflags="-march=$cpu"
3308             enable i686
3309             enable fast_cmov
3310         ;;
3311         # targets that do support conditional mov but on which it's slow
3312         pentium4|pentium4m|prescott|nocona)
3313             cpuflags="-march=$cpu"
3314             enable i686
3315             disable fast_cmov
3316         ;;
3317     esac
3318
3319 fi
3320
3321 if [ "$cpu" != generic ]; then
3322     add_cflags  $cpuflags
3323     add_asflags $cpuflags
3324 fi
3325
3326 # compiler sanity check
3327 check_exec <<EOF
3328 int main(void){ return 0; }
3329 EOF
3330 if test "$?" != 0; then
3331     echo "$cc is unable to create an executable file."
3332     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3333         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3334         echo "Only do this if you know what cross compiling means."
3335     fi
3336     die "C compiler test failed."
3337 fi
3338
3339 add_cppflags -D_ISOC99_SOURCE
3340 add_cxxflags -D__STDC_CONSTANT_MACROS
3341 check_cflags -std=c99
3342 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3343 #include <stdlib.h>
3344 EOF
3345 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3346 #include <stdlib.h>
3347 EOF
3348
3349 check_host_cflags -std=c99
3350 check_host_cflags -Wall
3351
3352 check_64bit(){
3353     arch32=$1
3354     arch64=$2
3355     expr=$3
3356     check_code cc "" "int test[2*($expr) - 1]" &&
3357         subarch=$arch64 || subarch=$arch32
3358 }
3359
3360 case "$arch" in
3361     aarch64|alpha|ia64)
3362         spic=$shared
3363     ;;
3364     mips)
3365         check_64bit mips mips64 '_MIPS_SIM > 1'
3366         spic=$shared
3367     ;;
3368     parisc)
3369         check_64bit parisc parisc64 'sizeof(void *) > 4'
3370         spic=$shared
3371     ;;
3372     ppc)
3373         check_64bit ppc ppc64 'sizeof(void *) > 4'
3374         spic=$shared
3375     ;;
3376     sparc)
3377         check_64bit sparc sparc64 'sizeof(void *) > 4'
3378         spic=$shared
3379     ;;
3380     x86)
3381         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3382         if test "$subarch" = "x86_64"; then
3383             spic=$shared
3384         fi
3385     ;;
3386     ppc)
3387         check_cc <<EOF && subarch="ppc64"
3388         int test[(int)sizeof(char*) - 7];
3389 EOF
3390     ;;
3391 esac
3392
3393 enable $subarch
3394 enabled spic && enable_weak pic
3395
3396 # OS specific
3397 case $target_os in
3398     aix)
3399         SHFLAGS=-shared
3400         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3401         enabled shared && add_ldflags -Wl,-brtl
3402         ;;
3403     haiku)
3404         prefix_default="/boot/common"
3405         network_extralibs="-lnetwork"
3406         host_libs=
3407         ;;
3408     sunos)
3409         SHFLAGS='-shared -Wl,-h,$$(@F)'
3410         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3411         network_extralibs="-lsocket -lnsl"
3412         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3413         # When using suncc to build, the Solaris linker will mark
3414         # an executable with each instruction set encountered by
3415         # the Solaris assembler.  As our libraries contain their own
3416         # guards for processor-specific code, instead suppress
3417         # generation of the HWCAPS ELF section on Solaris x86 only.
3418         enabled_all suncc x86 &&
3419             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3420             add_ldflags -Wl,-M,mapfile
3421         nm_default='nm -P -g'
3422         ;;
3423     netbsd)
3424         disable symver
3425         oss_indev_extralibs="-lossaudio"
3426         oss_outdev_extralibs="-lossaudio"
3427         enabled gcc || check_ldflags -Wl,-zmuldefs
3428         ;;
3429     openbsd|bitrig)
3430         disable symver
3431         SHFLAGS='-shared'
3432         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3433         SLIB_INSTALL_LINKS=
3434         oss_indev_extralibs="-lossaudio"
3435         oss_outdev_extralibs="-lossaudio"
3436         ;;
3437     dragonfly)
3438         disable symver
3439         ;;
3440     freebsd)
3441         ;;
3442     bsd/os)
3443         add_extralibs -lpoll -lgnugetopt
3444         strip="strip -d"
3445         ;;
3446     darwin)
3447         gas="gas-preprocessor.pl $cc"
3448         enabled ppc && add_asflags -force_cpusubtype_ALL
3449         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3450         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3451         strip="${strip} -x"
3452         add_ldflags -Wl,-dynamic,-search_paths_first
3453         SLIBSUF=".dylib"
3454         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3455         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3456         objformat="macho"
3457         enabled x86_64 && objformat="macho64"
3458         enabled_any pic shared ||
3459             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3460         ;;
3461     mingw32*)
3462         if test $target_os = "mingw32ce"; then
3463             disable network
3464         else
3465             target_os=mingw32
3466         fi
3467         LIBTARGET=i386
3468         if enabled x86_64; then
3469             LIBTARGET="i386:x86-64"
3470         elif enabled arm; then
3471             LIBTARGET=arm-wince
3472         fi
3473         check_ldflags -Wl,--nxcompat
3474         check_ldflags -Wl,--dynamicbase
3475         shlibdir_default="$bindir_default"
3476         SLIBPREF=""
3477         SLIBSUF=".dll"
3478         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3479         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3480         dlltool="${cross_prefix}dlltool"
3481         if check_cmd lib.exe -list; then
3482             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3483             if enabled x86_64; then
3484                 LIBTARGET=x64
3485             fi
3486         elif check_cmd $dlltool --version; then
3487             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3488         fi
3489         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3490         SLIB_INSTALL_LINKS=
3491         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3492         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3493         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3494         objformat="win32"
3495         ranlib=:
3496         enable dos_paths
3497         ;;
3498     win32|win64)
3499         if enabled shared; then
3500             # Link to the import library instead of the normal static library
3501             # for shared libs.
3502             LD_LIB='%.lib'
3503             # Cannot build shared and static libs at the same time with MSVC.
3504             disable static
3505         fi
3506         shlibdir_default="$bindir_default"
3507         SLIBPREF=""
3508         SLIBSUF=".dll"
3509         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3510         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3511         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3512         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3513         SLIB_INSTALL_LINKS=
3514         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3515         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3516         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3517         objformat="win32"
3518         ranlib=:
3519         enable dos_paths
3520         ;;
3521     cygwin*)
3522         target_os=cygwin
3523         shlibdir_default="$bindir_default"
3524         SLIBPREF="cyg"
3525         SLIBSUF=".dll"
3526         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3527         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3528         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3529         SLIB_INSTALL_LINKS=
3530         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3531         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3532         objformat="win32"
3533         enable dos_paths
3534         ;;
3535     *-dos|freedos|opendos)
3536         network_extralibs="-lsocket"
3537         objformat="coff"
3538         enable dos_paths
3539         add_cppflags -U__STRICT_ANSI__
3540         ;;
3541     linux)
3542         enable dv1394
3543         ;;
3544     irix*)
3545         target_os=irix
3546         ranlib="echo ignoring ranlib"
3547         ;;
3548     os/2*)
3549         strip="lxlite -CS"
3550         ln_s="cp -f"
3551         objformat="aout"
3552         add_cppflags -D_GNU_SOURCE
3553         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3554         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3555         LIBSUF="_s.a"
3556         SLIBPREF=""
3557         SLIBSUF=".dll"
3558         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3559         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3560         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3561             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3562             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3563             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3564             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3565             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3566         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3567             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3568         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3569         enable dos_paths
3570         enable_weak os2threads
3571         ;;
3572     gnu/kfreebsd)
3573         add_cppflags -D_BSD_SOURCE
3574         ;;
3575     gnu)
3576         ;;
3577     qnx)
3578         add_cppflags -D_QNX_SOURCE
3579         network_extralibs="-lsocket"
3580         ;;
3581     symbian)
3582         SLIBSUF=".dll"
3583         enable dos_paths
3584         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3585         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3586         add_ldflags -Wl,--target1-abs,--no-undefined \
3587                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3588                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3589         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3590                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3591                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3592         ;;
3593     osf1)
3594         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3595         ;;
3596     minix)
3597         ;;
3598     plan9)
3599         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3600                      -D_REENTRANT_SOURCE        \
3601                      -D_RESEARCH_SOURCE         \
3602                      -DFD_SETSIZE=96            \
3603                      -DHAVE_SOCK_OPTS
3604         add_compat strtod.o strtod=avpriv_strtod
3605         network_extralibs='-lbsd'
3606         exeobjs=compat/plan9/main.o
3607         disable ffserver
3608         cp_f='cp'
3609         ;;
3610     none)
3611         ;;
3612     *)
3613         die "Unknown OS '$target_os'."
3614         ;;
3615 esac
3616
3617 # determine libc flavour
3618
3619 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3620 if check_cpp_condition features.h "defined __UCLIBC__"; then
3621     libc_type=uclibc
3622     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3623 elif check_cpp_condition features.h "defined __GLIBC__"; then
3624     libc_type=glibc
3625     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3626 # MinGW headers can be installed on Cygwin, so check for newlib first.
3627 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3628     libc_type=newlib
3629     add_cppflags -U__STRICT_ANSI__
3630 elif check_header _mingw.h; then
3631     libc_type=mingw
3632     check_cpp_condition _mingw.h \
3633         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3634             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3635         die "ERROR: MinGW runtime version must be >= 3.15."
3636     add_cppflags -U__STRICT_ANSI__
3637     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3638             __MINGW64_VERSION_MAJOR < 3"; then
3639         add_compat msvcrt/snprintf.o
3640         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3641     else
3642         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3643     fi
3644 elif check_func_headers stdlib.h _get_doserrno; then
3645     libc_type=msvcrt
3646     add_compat strtod.o strtod=avpriv_strtod
3647     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3648                                  _snprintf=avpriv_snprintf  \
3649                                  vsnprintf=avpriv_vsnprintf
3650     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3651     # 0x601 by default unless something else is set by the user.
3652     # This can easily lead to us detecting functions only present
3653     # in such new versions and producing binaries requiring windows 7.0.
3654     # Therefore explicitly set the default to XP unless the user has
3655     # set something else on the command line.
3656     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3657 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3658     libc_type=klibc
3659 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3660     libc_type=bionic
3661     add_compat strtod.o strtod=avpriv_strtod
3662 fi
3663
3664 test -n "$libc_type" && enable $libc_type
3665
3666 # hacks for compiler/libc/os combinations
3667
3668 if enabled_all tms470 glibc; then
3669     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3670     add_cppflags -D__USER_LABEL_PREFIX__=
3671     add_cppflags -D__builtin_memset=memset
3672     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3673     add_cflags   -pds=48    # incompatible redefinition of macro
3674 fi
3675
3676 if enabled_all ccc glibc; then
3677     add_ldflags -Wl,-z,now  # calls to libots crash without this
3678 fi
3679
3680 esc(){
3681     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3682 }
3683
3684 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3685
3686 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3687
3688 set_default $PATHS_LIST
3689 set_default nm
3690
3691 # we need to build at least one lib type
3692 if ! enabled_any static shared; then
3693     cat <<EOF
3694 At least one library type must be built.
3695 Specify --enable-static to build the static libraries or --enable-shared to
3696 build the shared libraries as well. To only build the shared libraries specify
3697 --disable-static in addition to --enable-shared.
3698 EOF
3699     exit 1;
3700 fi
3701
3702 # backward compatibility layer for incompatible_libav/fork_abi
3703 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3704 enabled incompatible_libav_abi && enable incompatible_fork_abi
3705
3706 die_license_disabled() {
3707     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3708 }
3709
3710 die_license_disabled_gpl() {
3711     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3712 }
3713
3714 die_license_disabled gpl frei0r
3715 die_license_disabled gpl libcdio
3716 die_license_disabled gpl libutvideo
3717 die_license_disabled gpl libvidstab
3718 die_license_disabled gpl libx264
3719 die_license_disabled gpl libxavs
3720 die_license_disabled gpl libxvid
3721 die_license_disabled gpl x11grab
3722
3723 die_license_disabled nonfree libaacplus
3724 die_license_disabled nonfree libfaac
3725 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3726 enabled gpl && die_license_disabled_gpl nonfree openssl
3727
3728 die_license_disabled version3 libopencore_amrnb
3729 die_license_disabled version3 libopencore_amrwb
3730 die_license_disabled version3 libvo_aacenc
3731 die_license_disabled version3 libvo_amrwbenc
3732
3733 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3734
3735 disabled optimizations || check_cflags -fomit-frame-pointer
3736
3737 enable_weak_pic() {
3738     disabled pic && return
3739     enable pic
3740     add_cppflags -DPIC
3741     case "$target_os" in
3742     mingw*|cygwin*)
3743         ;;
3744     *)
3745         add_cflags -fPIC
3746         ;;
3747     esac
3748     add_asflags  -fPIC
3749 }
3750
3751 enabled pic && enable_weak_pic
3752
3753 check_cc <<EOF || die "Symbol mangling check failed."
3754 int ff_extern;
3755 EOF
3756 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3757 extern_prefix=${sym%%ff_extern*}
3758
3759 check_cc <<EOF && enable_weak inline_asm
3760 void foo(void) { __asm__ volatile ("" ::); }
3761 EOF
3762
3763 _restrict=
3764 for restrict_keyword in restrict __restrict__ __restrict; do
3765     check_cc <<EOF && _restrict=$restrict_keyword && break
3766 void foo(char * $restrict_keyword p);
3767 EOF
3768 done
3769
3770 check_cc <<EOF && enable pragma_deprecated
3771 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3772 EOF
3773
3774 check_cc <<EOF && enable attribute_packed
3775 struct { int x; } __attribute__((packed)) x;
3776 EOF
3777
3778 check_cc <<EOF && enable attribute_may_alias
3779 union { int x; } __attribute__((may_alias)) x;
3780 EOF
3781
3782 check_cc <<EOF || die "endian test failed"
3783 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3784 EOF
3785 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3786
3787 check_inline_asm inline_asm_labels '"1:\n"'
3788
3789 if enabled alpha; then
3790
3791     check_cflags -mieee
3792
3793 elif enabled arm; then
3794
3795     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3796 float func(float a, float b){ return a+b; }
3797 EOF
3798
3799     enabled thumb && check_cflags -mthumb || check_cflags -marm
3800     nogas=die
3801
3802     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3803         enable vfp_args
3804     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3805         case "${cross_prefix:-$cc}" in
3806             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3807             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3808 __asm__ (".eabi_attribute 28, 1");
3809 int main(void) { return 0; }
3810 EOF
3811         esac
3812         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3813     fi
3814
3815     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3816     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3817     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3818     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3819     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3820     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3821
3822     [ $target_os = linux ] ||
3823         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3824             $ARCH_EXT_LIST_ARM
3825
3826     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3827     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3828
3829     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3830
3831 elif enabled mips; then
3832
3833     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3834     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3835      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3836     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3837      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3838     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3839      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3840     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3841      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3842
3843 elif enabled parisc; then
3844
3845     if enabled gcc; then
3846         case $($cc -dumpversion) in
3847             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3848         esac
3849     fi
3850
3851 elif enabled ppc; then
3852
3853     enable local_aligned_8 local_aligned_16
3854
3855     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3856     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3857     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3858     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3859
3860     # AltiVec flags: The FSF version of GCC differs from the Apple version
3861     if enabled altivec; then
3862         if ! enabled_any pic ppc64; then
3863             nogas=warn
3864         fi
3865         check_cflags -maltivec -mabi=altivec &&
3866         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3867         check_cflags -faltivec
3868
3869         # check if our compiler supports Motorola AltiVec C API
3870         check_cc <<EOF || disable altivec
3871 $inc_altivec_h
3872 int main(void) {
3873     vector signed int v1 = (vector signed int) { 0 };
3874     vector signed int v2 = (vector signed int) { 1 };
3875     v1 = vec_add(v1, v2);
3876     return 0;
3877 }
3878 EOF
3879
3880         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3881     fi
3882
3883 elif enabled sparc; then
3884
3885     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3886
3887 elif enabled x86; then
3888
3889     check_builtin rdtsc    intrin.h   "__rdtsc()"
3890     check_builtin mm_empty mmintrin.h "_mm_empty()"
3891
3892     enable local_aligned_8 local_aligned_16
3893
3894     # check whether EBP is available on x86
3895     # As 'i' is stored on the stack, this program will crash
3896     # if the base pointer is used to access it because the
3897     # base pointer is cleared in the inline assembly code.
3898     check_exec_crash <<EOF && enable ebp_available
3899 volatile int i=0;
3900 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3901 return i;
3902 EOF
3903
3904     # check whether EBX is available on x86
3905     check_inline_asm ebx_available '""::"b"(0)' &&
3906         check_inline_asm ebx_available '"":::"%ebx"'
3907
3908     # check whether xmm clobbers are supported
3909     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3910
3911     # check whether binutils is new enough to compile SSSE3/MMXEXT
3912     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3913     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3914
3915     if ! disabled_any asm mmx yasm; then
3916         if check_cmd $yasmexe --version; then
3917             enabled x86_64 && yasm_extra="-m amd64"
3918             yasm_debug="-g dwarf2"
3919         elif check_cmd nasm -v; then
3920             yasmexe=nasm
3921             yasm_debug="-g -F dwarf"
3922             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3923         fi
3924
3925         YASMFLAGS="-f $objformat $yasm_extra"
3926         enabled pic               && append YASMFLAGS "-DPIC"
3927         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3928         case "$objformat" in
3929             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3930         esac
3931
3932         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3933             die "yasm not found, use --disable-yasm for a crippled build"
3934         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
3935         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3936         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3937     fi
3938
3939     case "$cpu" in
3940         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3941             disable fast_clz
3942         ;;
3943     esac
3944
3945 fi
3946
3947 if enabled asm; then
3948     as=${gas:=$as}
3949     check_as <<EOF && enable gnu_as || \
3950         $nogas "GNU assembler not found, install gas-preprocessor"
3951 .macro m n
3952 \n: .int 0
3953 .endm
3954 m x
3955 EOF
3956 fi
3957
3958 check_ldflags -Wl,--as-needed
3959
3960 if check_func dlopen; then
3961     ldl=
3962 elif check_func dlopen -ldl; then
3963     ldl=-ldl
3964 fi
3965
3966 if ! disabled network; then
3967     check_type "sys/types.h sys/socket.h" socklen_t
3968     check_type netdb.h "struct addrinfo"
3969     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3970     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3971     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3972     check_type netinet/in.h "struct sockaddr_in6"
3973     check_type poll.h "struct pollfd"
3974     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3975     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3976     check_type netinet/sctp.h "struct sctp_event_subscribe"
3977     check_func getaddrinfo $network_extralibs
3978     check_func getservbyport $network_extralibs
3979     # Prefer arpa/inet.h over winsock2
3980     if check_header arpa/inet.h ; then
3981         check_func closesocket
3982     elif check_header winsock2.h ; then
3983         check_func_headers winsock2.h closesocket -lws2 &&
3984             network_extralibs="-lws2" ||
3985         { check_func_headers winsock2.h closesocket -lws2_32 &&
3986             network_extralibs="-lws2_32"; }
3987         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3988         check_type ws2tcpip.h socklen_t
3989         check_type ws2tcpip.h "struct addrinfo"
3990         check_type ws2tcpip.h "struct group_source_req"
3991         check_type ws2tcpip.h "struct ip_mreq_source"
3992         check_type ws2tcpip.h "struct ipv6_mreq"
3993         check_type winsock2.h "struct pollfd"
3994         check_type ws2tcpip.h "struct sockaddr_in6"
3995         check_type ws2tcpip.h "struct sockaddr_storage"
3996         check_struct winsock2.h "struct sockaddr" sa_len
3997     else
3998         disable network
3999     fi
4000 fi
4001
4002 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4003 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4004
4005 check_func  access
4006 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4007 check_func  fcntl
4008 check_func  fork
4009 check_func_headers stdlib.h getenv
4010 check_func  gethrtime
4011 check_func  getopt
4012 check_func  getrusage
4013 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4014 check_func  gettimeofday
4015 check_func  inet_aton $network_extralibs
4016 check_func  isatty
4017 check_func  localtime_r
4018 check_func  ${malloc_prefix}memalign            && enable memalign
4019 check_func  mkstemp
4020 check_func  mmap
4021 check_func  mprotect
4022 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4023 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4024 check_func  setrlimit
4025 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4026 check_func  strerror_r
4027 check_func  sched_getaffinity
4028 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4029 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4030 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4031 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4032 check_builtin sarestart signal.h "SA_RESTART"
4033 check_func  sysconf
4034 check_func  sysctl
4035 check_func  usleep
4036 check_func_headers conio.h kbhit
4037 check_func_headers windows.h PeekNamedPipe
4038 check_func_headers io.h setmode
4039 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4040 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4041 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4042 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4043 check_func_headers windows.h GetProcessAffinityMask
4044 check_func_headers windows.h GetProcessTimes
4045 check_func_headers windows.h GetSystemTimeAsFileTime
4046 check_func_headers windows.h MapViewOfFile
4047 check_func_headers windows.h SetConsoleTextAttribute
4048 check_func_headers windows.h Sleep
4049 check_func_headers windows.h VirtualAlloc
4050 check_func_headers glob.h glob
4051 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4052
4053 check_header cl/cl.h
4054 check_header direct.h
4055 check_header dlfcn.h
4056 check_header dxva.h
4057 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4058 check_header io.h
4059 check_header libcrystalhd/libcrystalhd_if.h
4060 check_header malloc.h
4061 check_header poll.h
4062 check_header sys/mman.h
4063 check_header sys/param.h
4064 check_header sys/resource.h
4065 check_header sys/select.h
4066 check_header sys/time.h
4067 check_header termios.h
4068 check_header unistd.h
4069 check_header vdpau/vdpau.h
4070 check_header vdpau/vdpau_x11.h
4071 check_header VideoDecodeAcceleration/VDADecoder.h
4072 check_header windows.h
4073 check_header X11/extensions/XvMClib.h
4074 check_header asm/types.h
4075
4076 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4077 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4078
4079 if ! disabled w32threads && ! enabled pthreads; then
4080     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4081 fi
4082
4083 # check for some common methods of building with pthread support
4084 # do this before the optional library checks as some of them require pthreads
4085 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4086     enable pthreads
4087     if check_func pthread_create; then
4088         :
4089     elif check_func pthread_create -pthread; then
4090         add_cflags -pthread
4091         add_extralibs -pthread
4092     elif check_func pthread_create -pthreads; then
4093         add_cflags -pthreads
4094         add_extralibs -pthreads
4095     elif check_func pthread_create -lpthreadGC2; then
4096         add_extralibs -lpthreadGC2
4097     elif ! check_lib pthread.h pthread_create -lpthread; then
4098         disable pthreads
4099     fi
4100 fi
4101
4102 for thread in $THREADS_LIST; do
4103     if enabled $thread; then
4104         test -n "$thread_type" &&
4105             die "ERROR: Only one thread type must be selected." ||
4106             thread_type="$thread"
4107     fi
4108 done
4109
4110 if enabled pthreads; then
4111   check_func pthread_cancel
4112 fi
4113
4114 enabled sync_val_compare_and_swap && enable atomics_gcc
4115 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4116 enabled MemoryBarrier && enable atomics_win32
4117
4118 check_lib math.h sin -lm && LIBM="-lm"
4119 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4120
4121 atan2f_args=2
4122 ldexpf_args=2
4123 powf_args=2
4124
4125 for func in $MATH_FUNCS; do
4126     eval check_mathfunc $func \${${func}_args:-1}
4127 done
4128
4129 # these are off by default, so fail if requested and not available
4130 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4131                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4132                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4133 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4134 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4135 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4136 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4137 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4138 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4139 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4140 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4141                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4142                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4143 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4144 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4145 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4146 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"
4147 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4148 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4149 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme
4150 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4151                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4152                                done || die "ERROR: libgsm not found"; }
4153 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4154 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4155 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4156 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4157 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4158 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4159 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4160 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4161                                check_lib openjpeg.h opj_version -lopenjpeg ||
4162                                die "ERROR: libopenjpeg not found"; }
4163 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4164 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4165 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4166 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4167 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4168 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4169 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4170 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4171 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4172     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4173     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4174 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4175 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4176                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4177                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4178 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4179 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4180 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4181 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4182 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4183 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4184 enabled libvpx            && {
4185     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4186                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4187     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 ||
4188                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4189     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4190     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4191 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4192 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4193                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4194                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4195 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4196 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4197 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4198 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4199                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4200                                die "ERROR: openal not found"; } &&
4201                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4202                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4203 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4204                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4205                                die "ERROR: opencl not found"; } &&
4206                              { enabled_any w32threads os2threads &&
4207                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4208                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4209                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4210                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4211 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4212                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4213                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4214                                die "ERROR: openssl not found"; }
4215
4216 if enabled gnutls; then
4217     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4218     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4219 fi
4220
4221 # libdc1394 check
4222 if enabled libdc1394; then
4223     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4224         enable libdc1394_2; } ||
4225     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4226         enable libdc1394_1; } ||
4227     die "ERROR: No version of libdc1394 found "
4228 fi
4229
4230 SDL_CONFIG="${cross_prefix}sdl-config"
4231 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4232     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4233     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4234     enable sdl
4235 else
4236   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4237     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4238     sdl_libs=$("${SDL_CONFIG}" --libs)
4239     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4240     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4241     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4242     enable sdl
4243   fi
4244 fi
4245 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4246
4247 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4248 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4249 perl --version > /dev/null 2>&1 && enable perl || disable perl
4250 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4251 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4252
4253 check_header linux/fb.h
4254 check_header linux/videodev.h
4255 check_header linux/videodev2.h
4256 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4257
4258 check_header sys/videoio.h
4259
4260 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4261 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4262 # w32api 3.12 had it defined wrong
4263 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4264
4265 check_type "dshow.h" IBaseFilter
4266
4267 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4268 { check_header dev/bktr/ioctl_meteor.h &&
4269   check_header dev/bktr/ioctl_bt848.h; } ||
4270 { check_header machine/ioctl_meteor.h &&
4271   check_header machine/ioctl_bt848.h; } ||
4272 { check_header dev/video/meteor/ioctl_meteor.h &&
4273   check_header dev/video/bktr/ioctl_bt848.h; } ||
4274 check_header dev/ic/bt8xx.h
4275
4276 check_header sndio.h
4277 if check_struct sys/soundcard.h audio_buf_info bytes; then
4278     enable_safe sys/soundcard.h
4279 else
4280     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4281     #include <sys/soundcard.h>
4282     audio_buf_info abc;
4283 EOF
4284 fi
4285 check_header soundcard.h
4286
4287 enabled_any alsa_indev alsa_outdev &&
4288     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4289
4290 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4291     check_func jack_port_get_latency_range -ljack
4292
4293 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4294
4295 if enabled libcdio; then
4296     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4297     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4298     die "ERROR: libcdio-paranoia not found"
4299 fi
4300
4301 enabled x11grab                                           &&
4302 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4303 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4304 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4305
4306 enabled vaapi &&
4307     check_lib va/va.h vaInitialize -lva ||
4308     disable vaapi
4309
4310 enabled vdpau &&
4311     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4312     disable vdpau
4313
4314 # Funny iconv installations are not unusual, so check it after all flags have been set
4315 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4316
4317 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4318
4319 # add some useful compiler flags if supported
4320 check_cflags -Wdeclaration-after-statement
4321 check_cflags -Wall
4322 check_cflags -Wno-parentheses
4323 check_cflags -Wno-switch
4324 check_cflags -Wno-format-zero-length
4325 check_cflags -Wdisabled-optimization
4326 check_cflags -Wpointer-arith
4327 check_cflags -Wredundant-decls
4328 check_cflags -Wno-pointer-sign
4329 check_cflags -Wwrite-strings
4330 check_cflags -Wtype-limits
4331 check_cflags -Wundef
4332 check_cflags -Wmissing-prototypes
4333 check_cflags -Wno-pointer-to-int-cast
4334 check_cflags -Wstrict-prototypes
4335 enabled extra_warnings && check_cflags -Winline
4336
4337 # add some linker flags
4338 check_ldflags -Wl,--warn-common
4339 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4340 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4341
4342 enabled xmm_clobber_test &&
4343     check_ldflags -Wl,--wrap,avcodec_open2              \
4344                   -Wl,--wrap,avcodec_decode_audio4      \
4345                   -Wl,--wrap,avcodec_decode_video2      \
4346                   -Wl,--wrap,avcodec_decode_subtitle2   \
4347                   -Wl,--wrap,avcodec_encode_audio2      \
4348                   -Wl,--wrap,avcodec_encode_video       \
4349                   -Wl,--wrap,avcodec_encode_subtitle    \
4350                   -Wl,--wrap,sws_scale ||
4351     disable xmm_clobber_test
4352
4353 echo "X{};" > $TMPV
4354 if test_ldflags -Wl,--version-script,$TMPV; then
4355     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4356     check_cc <<EOF && enable symver_asm_label
4357 void ff_foo(void) __asm__ ("av_foo@VERSION");
4358 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4359 EOF
4360     check_cc <<EOF && enable symver_gnu_asm
4361 __asm__(".symver ff_foo,av_foo@VERSION");
4362 void ff_foo(void) {}
4363 EOF
4364 fi
4365
4366 if [ -z "$optflags" ]; then
4367     if enabled small; then
4368         optflags=$cflags_size
4369     elif enabled optimizations; then
4370         optflags=$cflags_speed
4371     else
4372         optflags=$cflags_noopt
4373     fi
4374 fi
4375
4376 check_optflags(){
4377     check_cflags "$@"
4378     enabled lto && check_ldflags "$@"
4379 }
4380
4381
4382 if enabled lto; then
4383     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4384     check_cflags  -flto
4385     check_ldflags -flto $cpuflags
4386 fi
4387
4388 check_optflags $optflags
4389 check_optflags -fno-math-errno
4390 check_optflags -fno-signed-zeros
4391
4392 enabled ftrapv && check_cflags -ftrapv
4393
4394 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4395 int x;
4396 EOF
4397
4398
4399 if enabled icc; then
4400     # Just warnings, no remarks
4401     check_cflags -w1
4402     # -wd: Disable following warnings
4403     # 144, 167, 556: -Wno-pointer-sign
4404     # 188: enumerated type mixed with another type
4405     # 1292: attribute "foo" ignored
4406     # 1419: external declaration in primary source file
4407     # 10006: ignoring unknown option -fno-signed-zeros
4408     # 10148: ignoring unknown option -Wno-parentheses
4409     # 10156: ignoring option '-W'; no argument required
4410     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4411     # 11030: Warning unknown option --as-needed
4412     # 10156: ignoring option '-export'; no argument required
4413     check_ldflags -wd10156,11030
4414     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4415     enable ebp_available
4416     if enabled x86_32; then
4417         icc_version=$($cc -dumpversion)
4418         test ${icc_version%%.*} -ge 11 &&
4419             check_cflags -falign-stack=maintain-16-byte ||
4420             disable aligned_stack
4421     fi
4422 elif enabled ccc; then
4423     # disable some annoying warnings
4424     add_cflags -msg_disable bitnotint
4425     add_cflags -msg_disable mixfuncvoid
4426     add_cflags -msg_disable nonstandcast
4427     add_cflags -msg_disable unsupieee
4428 elif enabled gcc; then
4429     check_optflags -fno-tree-vectorize
4430     check_cflags -Werror=implicit-function-declaration
4431     check_cflags -Werror=missing-prototypes
4432     check_cflags -Werror=return-type
4433     check_cflags -Werror=vla
4434 elif enabled llvm_gcc; then
4435     check_cflags -mllvm -stack-alignment=16
4436 elif enabled clang; then
4437     check_cflags -mllvm -stack-alignment=16
4438     check_cflags -Qunused-arguments
4439     check_cflags -Werror=implicit-function-declaration
4440     check_cflags -Werror=missing-prototypes
4441     check_cflags -Werror=return-type
4442 elif enabled armcc; then
4443     # 2523: use of inline assembler is deprecated
4444     add_cflags -W${armcc_opt},--diag_suppress=2523
4445     add_cflags -W${armcc_opt},--diag_suppress=1207
4446     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4447     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4448     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4449     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4450 elif enabled tms470; then
4451     add_cflags -pds=824 -pds=837
4452 elif enabled pathscale; then
4453     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4454 elif enabled_any msvc icl; then
4455     enabled x86_32 && disable aligned_stack
4456     enabled_all x86_32 debug && add_cflags -Oy-
4457     enabled debug && add_ldflags -debug
4458     if enabled icl; then
4459         # basically -fstrict-aliasing that does not work (correctly) on icl 13.x
4460         check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4461         # icl will pass the inline asm tests but inline asm is currently
4462         # not supported (build will fail)
4463         disable inline_asm
4464     fi
4465 fi
4466
4467 case $target_os in
4468     osf1)
4469         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4470     ;;
4471     plan9)
4472         add_cppflags -Dmain=plan9_main
4473     ;;
4474 esac
4475
4476 enable frame_thread_encoder
4477 enabled_any $THREADS_LIST      && enable threads
4478 enabled_any $ATOMICS_LIST      && enable atomics_native
4479
4480 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4481
4482 check_deps $CONFIG_LIST       \
4483            $CONFIG_EXTRA      \
4484            $HAVE_LIST         \
4485            $ALL_COMPONENTS    \
4486
4487
4488 if test $target_os = "haiku"; then
4489     disable memalign
4490     disable posix_memalign
4491 fi
4492
4493 ! enabled_any memalign posix_memalign aligned_malloc &&
4494     enabled_any $need_memalign && enable memalign_hack
4495
4496 # add_dep lib dep
4497 # -> enable ${lib}_deps_${dep}
4498 # -> add $dep to ${lib}_deps only once
4499 add_dep() {
4500     lib=$1
4501     dep=$2
4502     enabled "${lib}_deps_${dep}" && return 0
4503     enable  "${lib}_deps_${dep}"
4504     prepend "${lib}_deps" $dep
4505 }
4506
4507 # merge deps lib components
4508 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4509 merge_deps() {
4510     lib=$1
4511     shift
4512     for comp in $*; do
4513         enabled $comp || continue
4514         eval "dep=\"\$${comp}_deps\""
4515         for d in $dep; do
4516             add_dep $lib $d
4517         done
4518     done
4519 }
4520
4521 merge_deps libavfilter $FILTER_LIST
4522
4523 echo "install prefix            $prefix"
4524 echo "source path               $source_path"
4525 echo "C compiler                $cc"
4526 echo "ARCH                      $arch ($cpu)"
4527 if test "$build_suffix" != ""; then
4528     echo "build suffix              $build_suffix"
4529 fi
4530 if test "$progs_suffix" != ""; then
4531     echo "progs suffix              $progs_suffix"
4532 fi
4533 if test "$extra_version" != ""; then
4534     echo "version string suffix     $extra_version"
4535 fi
4536 echo "big-endian                ${bigendian-no}"
4537 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4538 if enabled x86; then
4539     echo "${yasmexe}                      ${yasm-no}"
4540     echo "MMX enabled               ${mmx-no}"
4541     echo "MMXEXT enabled            ${mmxext-no}"
4542     echo "3DNow! enabled            ${amd3dnow-no}"
4543     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4544     echo "SSE enabled               ${sse-no}"
4545     echo "SSSE3 enabled             ${ssse3-no}"
4546     echo "AVX enabled               ${avx-no}"
4547     echo "FMA4 enabled              ${fma4-no}"
4548     echo "i686 features enabled     ${i686-no}"
4549     echo "CMOV is fast              ${fast_cmov-no}"
4550     echo "EBX available             ${ebx_available-no}"
4551     echo "EBP available             ${ebp_available-no}"
4552 fi
4553 if enabled arm; then
4554     echo "ARMv5TE enabled           ${armv5te-no}"
4555     echo "ARMv6 enabled             ${armv6-no}"
4556     echo "ARMv6T2 enabled           ${armv6t2-no}"
4557     echo "VFP enabled               ${vfp-no}"
4558     echo "NEON enabled              ${neon-no}"
4559     echo "THUMB enabled             ${thumb-no}"
4560 fi
4561 if enabled mips; then
4562     echo "MIPS FPU enabled          ${mipsfpu-no}"
4563     echo "MIPS32R2 enabled          ${mips32r2-no}"
4564     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4565     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4566 fi
4567 if enabled ppc; then
4568     echo "AltiVec enabled           ${altivec-no}"
4569     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4570     echo "dcbzl available           ${dcbzl-no}"
4571 fi
4572 if enabled sparc; then
4573     echo "VIS enabled               ${vis-no}"
4574 fi
4575 echo "debug symbols             ${debug-no}"
4576 echo "strip symbols             ${stripping-no}"
4577 echo "optimize for size         ${small-no}"
4578 echo "optimizations             ${optimizations-no}"
4579 echo "static                    ${static-no}"
4580 echo "shared                    ${shared-no}"
4581 echo "postprocessing support    ${postproc-no}"
4582 echo "new filter support        ${avfilter-no}"
4583 echo "network support           ${network-no}"
4584 echo "threading support         ${thread_type-no}"
4585 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4586 echo "SDL support               ${sdl-no}"
4587 echo "opencl enabled            ${opencl-no}"
4588 echo "texi2html enabled         ${texi2html-no}"
4589 echo "perl enabled              ${perl-no}"
4590 echo "pod2man enabled           ${pod2man-no}"
4591 echo "makeinfo enabled          ${makeinfo-no}"
4592 test -n "$random_seed" &&
4593     echo "random seed               ${random_seed}"
4594 echo
4595
4596 echo "External libraries:"
4597 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4598 echo
4599
4600 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4601     echo "Enabled ${type}s:"
4602     eval list=\$$(toupper $type)_LIST
4603     print_enabled '_*' $list | print_3_columns
4604     echo
4605 done
4606
4607 license="LGPL version 2.1 or later"
4608 if enabled nonfree; then
4609     license="nonfree and unredistributable"
4610 elif enabled gplv3; then
4611     license="GPL version 3 or later"
4612 elif enabled lgplv3; then
4613     license="LGPL version 3 or later"
4614 elif enabled gpl; then
4615     license="GPL version 2 or later"
4616 fi
4617
4618 echo "License: $license"
4619
4620 echo "Creating config.mak, config.h, and doc/config.texi..."
4621
4622 test -e Makefile || $ln_s "$source_path/Makefile" .
4623
4624 enabled stripping || strip="echo skipping strip"
4625
4626 config_files="$TMPH config.mak doc/config.texi"
4627
4628 cat > config.mak <<EOF
4629 # Automatically generated by configure - do not modify!
4630 ifndef FFMPEG_CONFIG_MAK
4631 FFMPEG_CONFIG_MAK=1
4632 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4633 prefix=$prefix
4634 LIBDIR=\$(DESTDIR)$libdir
4635 SHLIBDIR=\$(DESTDIR)$shlibdir
4636 INCDIR=\$(DESTDIR)$incdir
4637 BINDIR=\$(DESTDIR)$bindir
4638 DATADIR=\$(DESTDIR)$datadir
4639 MANDIR=\$(DESTDIR)$mandir
4640 SRC_PATH=$source_path
4641 ifndef MAIN_MAKEFILE
4642 SRC_PATH:=\$(SRC_PATH:.%=..%)
4643 endif
4644 CC_IDENT=$cc_ident
4645 ARCH=$arch
4646 CC=$cc
4647 CXX=$cxx
4648 AS=$as
4649 LD=$ld
4650 DEPCC=$dep_cc
4651 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4652 DEPAS=$as
4653 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4654 YASM=$yasmexe
4655 DEPYASM=$yasmexe
4656 AR=$ar
4657 ARFLAGS=$arflags
4658 AR_O=$ar_o
4659 RANLIB=$ranlib
4660 CP=cp -p
4661 LN_S=$ln_s
4662 STRIP=$strip
4663 CPPFLAGS=$CPPFLAGS
4664 CFLAGS=$CFLAGS
4665 CXXFLAGS=$CXXFLAGS
4666 ASFLAGS=$ASFLAGS
4667 AS_C=$AS_C
4668 AS_O=$AS_O
4669 CC_C=$CC_C
4670 CC_E=$CC_E
4671 CC_O=$CC_O
4672 CXX_C=$CXX_C
4673 CXX_O=$CXX_O
4674 LD_O=$LD_O
4675 LD_LIB=$LD_LIB
4676 LD_PATH=$LD_PATH
4677 DLLTOOL=$dlltool
4678 LDFLAGS=$LDFLAGS
4679 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4680 YASMFLAGS=$YASMFLAGS
4681 BUILDSUF=$build_suffix
4682 PROGSSUF=$progs_suffix
4683 FULLNAME=$FULLNAME
4684 LIBPREF=$LIBPREF
4685 LIBSUF=$LIBSUF
4686 LIBNAME=$LIBNAME
4687 SLIBPREF=$SLIBPREF
4688 SLIBSUF=$SLIBSUF
4689 EXESUF=$EXESUF
4690 EXTRA_VERSION=$extra_version
4691 CCDEP=$CCDEP
4692 CXXDEP=$CXXDEP
4693 CCDEP_FLAGS=$CCDEP_FLAGS
4694 ASDEP=$ASDEP
4695 ASDEP_FLAGS=$ASDEP_FLAGS
4696 CC_DEPFLAGS=$CC_DEPFLAGS
4697 AS_DEPFLAGS=$AS_DEPFLAGS
4698 HOSTCC=$host_cc
4699 HOSTLD=$host_ld
4700 HOSTCFLAGS=$host_cflags
4701 HOSTCPPFLAGS=$host_cppflags
4702 HOSTEXESUF=$HOSTEXESUF
4703 HOSTLDFLAGS=$host_ldflags
4704 HOSTLIBS=$host_libs
4705 DEPHOSTCC=$host_cc
4706 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4707 HOSTCCDEP=$HOSTCCDEP
4708 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4709 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4710 HOSTCC_C=$HOSTCC_C
4711 HOSTCC_O=$HOSTCC_O
4712 HOSTLD_O=$HOSTLD_O
4713 TARGET_EXEC=$target_exec $target_exec_args
4714 TARGET_PATH=$target_path
4715 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4716 LIBS-ffplay=$sdl_libs
4717 CFLAGS-ffplay=$sdl_cflags
4718 ZLIB=$($ldflags_filter -lz)
4719 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4720 EXTRALIBS=$extralibs
4721 COMPAT_OBJS=$compat_objs
4722 EXEOBJS=$exeobjs
4723 INSTALL=$install
4724 LIBTARGET=${LIBTARGET}
4725 SLIBNAME=${SLIBNAME}
4726 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4727 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4728 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4729 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4730 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4731 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4732 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4733 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4734 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4735 NOREDZONE_FLAGS=$noredzone_flags
4736 EOF
4737
4738 get_version(){
4739     lcname=lib${1}
4740     name=$(toupper $lcname)
4741     file=$source_path/$lcname/version.h
4742     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4743     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4744     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4745     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4746     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4747 }
4748
4749 map 'get_version $v' $LIBRARY_LIST
4750
4751 cat > $TMPH <<EOF
4752 /* Automatically generated by configure - do not modify! */
4753 #ifndef FFMPEG_CONFIG_H
4754 #define FFMPEG_CONFIG_H
4755 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4756 #define FFMPEG_LICENSE "$(c_escape $license)"
4757 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4758 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4759 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4760 #define av_restrict $_restrict
4761 #define EXTERN_PREFIX "${extern_prefix}"
4762 #define EXTERN_ASM ${extern_prefix}
4763 #define SLIBSUF "$SLIBSUF"
4764 #define HAVE_MMX2 HAVE_MMXEXT
4765 EOF
4766
4767 test -n "$assert_level" &&
4768     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4769
4770 test -n "$malloc_prefix" &&
4771     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4772
4773 if enabled yasm; then
4774     append config_files $TMPASM
4775     printf '' >$TMPASM
4776 fi
4777
4778 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4779
4780
4781 mkdir -p doc
4782 echo "@c auto-generated by configure" > doc/config.texi
4783
4784 print_config ARCH_   "$config_files" $ARCH_LIST
4785 print_config HAVE_   "$config_files" $HAVE_LIST
4786 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4787                                      $CONFIG_EXTRA      \
4788                                      $ALL_COMPONENTS    \
4789
4790 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4791 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4792
4793 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4794 cp_if_changed $TMPH config.h
4795 touch .config
4796
4797 enabled yasm && cp_if_changed $TMPASM config.asm
4798
4799 cat > $TMPH <<EOF
4800 /* Generated by ffconf */
4801 #ifndef AVUTIL_AVCONFIG_H
4802 #define AVUTIL_AVCONFIG_H
4803 EOF
4804
4805 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4806
4807 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4808
4809 cp_if_changed $TMPH libavutil/avconfig.h
4810
4811 if test -n "$WARNINGS"; then
4812     printf "\n$WARNINGS"
4813     enabled fatal_warnings && exit 1
4814 fi
4815
4816 # build pkg-config files
4817
4818 pkgconfig_generate(){
4819     name=$1
4820     shortname=${name#lib}${build_suffix}
4821     comment=$2
4822     version=$3
4823     libs=$4
4824     requires=$5
4825     enabled ${name#lib} || return 0
4826     mkdir -p $name
4827     cat <<EOF > $name/$name${build_suffix}.pc
4828 prefix=$prefix
4829 exec_prefix=\${prefix}
4830 libdir=$libdir
4831 includedir=$incdir
4832
4833 Name: $name
4834 Description: $comment
4835 Version: $version
4836 Requires: $(enabled shared || echo $requires)
4837 Requires.private: $(enabled shared && echo $requires)
4838 Conflicts:
4839 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4840 Libs.private: $(enabled shared && echo $libs)
4841 Cflags: -I\${includedir}
4842 EOF
4843
4844 mkdir -p doc/examples/pc-uninstalled
4845 includedir=${source_path}
4846 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4847     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4848 prefix=
4849 exec_prefix=
4850 libdir=\${pcfiledir}/../../../$name
4851 includedir=${includedir}
4852
4853 Name: $name
4854 Description: $comment
4855 Version: $version
4856 Requires: $requires
4857 Conflicts:
4858 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4859 Cflags: -I\${includedir}
4860 EOF
4861 }
4862
4863 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4864 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4865 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4866 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4867 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4868 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4869 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4870 lavfi_libs=${lavfi_libs%, }
4871
4872 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4873 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4874
4875 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
4876 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4877 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4878 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
4879 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4880 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4881 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4882 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4883 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4884
4885 fix_ffmpeg_remote(){
4886     git_remote_from=$1
4887     git_remote_to=$2
4888     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4889     if [ "$fixme_remote" != "" ]; then
4890         echolog "
4891 Outdated domain in git config, the official domain for ffmpeg git is since
4892 November 2011, source.ffmpeg.org, both the old and the new point to the same
4893 repository and server. To update it enter the following commands:
4894 "
4895         for remote in $fixme_remote; do
4896             echolog "git remote set-url $remote $git_remote_to"
4897         done
4898     fi
4899 }
4900
4901 if test -f "$source_path/.git/config"; then
4902     remote_from=git.videolan.org
4903     remote_to=source.ffmpeg.org
4904     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4905     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4906 fi