git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-ffmpeg         disable ffmpeg build
 109   --disable-ffplay         disable ffplay build
 110   --disable-ffprobe        disable ffprobe build
 111   --disable-ffserver       disable ffserver build
 112
 113 Documentation options:
 114   --disable-doc            do not build documentation
 115   --disable-htmlpages      do not build HTML documentation pages
 116   --disable-manpages       do not build man documentation pages
 117   --disable-podpages       do not build POD documentation pages
 118   --disable-txtpages       do not build text documentation pages
 119
 120 Component options:
 121   --disable-avdevice       disable libavdevice build
 122   --disable-avcodec        disable libavcodec build
 123   --disable-avformat       disable libavformat build
 124   --disable-avutil         disable libavutil build
 125   --disable-swresample     disable libswresample build
 126   --disable-swscale        disable libswscale build
 127   --disable-postproc       disable libpostproc build
 128   --disable-avfilter       disable libavfilter build
 129   --enable-avresample      enable libavresample build [no]
 130   --disable-pthreads       disable pthreads [auto]
 131   --disable-w32threads     disable Win32 threads [auto]
 132   --disable-os2threads     disable OS/2 threads [auto]
 133   --disable-network        disable network support [no]
 134   --disable-dct            disable DCT code
 135   --disable-dwt            disable DWT code
 136   --disable-error-resilience disable error resilience code
 137   --disable-lsp            disable LSP code
 138   --disable-lzo            disable LZO decoder code
 139   --disable-mdct           disable MDCT code
 140   --disable-rdft           disable RDFT code
 141   --disable-fft            disable FFT code
 142
 143 Hardware accelerators:
 144   --disable-dxva2          disable DXVA2 code [autodetect]
 145   --disable-vaapi          disable VAAPI code [autodetect]
 146   --enable-vda             enable VDA code
 147   --disable-vdpau          disable VDPAU code [autodetect]
 148
 149 Individual component options:
 150   --disable-everything     disable all components listed below
 151   --disable-encoder=NAME   disable encoder NAME
 152   --enable-encoder=NAME    enable encoder NAME
 153   --disable-encoders       disable all encoders
 154   --disable-decoder=NAME   disable decoder NAME
 155   --enable-decoder=NAME    enable decoder NAME
 156   --disable-decoders       disable all decoders
 157   --disable-hwaccel=NAME   disable hwaccel NAME
 158   --enable-hwaccel=NAME    enable hwaccel NAME
 159   --disable-hwaccels       disable all hwaccels
 160   --disable-muxer=NAME     disable muxer NAME
 161   --enable-muxer=NAME      enable muxer NAME
 162   --disable-muxers         disable all muxers
 163   --disable-demuxer=NAME   disable demuxer NAME
 164   --enable-demuxer=NAME    enable demuxer NAME
 165   --disable-demuxers       disable all demuxers
 166   --enable-parser=NAME     enable parser NAME
 167   --disable-parser=NAME    disable parser NAME
 168   --disable-parsers        disable all parsers
 169   --enable-bsf=NAME        enable bitstream filter NAME
 170   --disable-bsf=NAME       disable bitstream filter NAME
 171   --disable-bsfs           disable all bitstream filters
 172   --enable-protocol=NAME   enable protocol NAME
 173   --disable-protocol=NAME  disable protocol NAME
 174   --disable-protocols      disable all protocols
 175   --enable-indev=NAME      enable input device NAME
 176   --disable-indev=NAME     disable input device NAME
 177   --disable-indevs         disable input devices
 178   --enable-outdev=NAME     enable output device NAME
 179   --disable-outdev=NAME    disable output device NAME
 180   --disable-outdevs        disable output devices
 181   --disable-devices        disable all devices
 182   --enable-filter=NAME     enable filter NAME
 183   --disable-filter=NAME    disable filter NAME
 184   --disable-filters        disable all filters
 185
 186 External library support:
 187   --enable-avisynth        enable reading of AVISynth script files [no]
 188   --disable-bzlib          disable bzlib [autodetect]
 189   --enable-fontconfig      enable fontconfig
 190   --enable-frei0r          enable frei0r video filtering
 191   --enable-gnutls          enable gnutls [no]
 192   --disable-iconv          disable iconv [autodetect]
 193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 194   --enable-libass          enable libass subtitles rendering [no]
 195   --enable-libbluray       enable BluRay reading using libbluray [no]
 196   --enable-libcaca         enable textual display using libcaca
 197   --enable-libcelt         enable CELT decoding via libcelt [no]
 198   --enable-libcdio         enable audio CD grabbing with libcdio
 199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 200                            and libraw1394 [no]
 201   --enable-libfaac         enable AAC encoding via libfaac [no]
 202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 204   --enable-libfreetype     enable libfreetype [no]
 205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 208   --enable-libmodplug      enable ModPlug via libmodplug [no]
 209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 210   --enable-libnut          enable NUT (de)muxing via libnut,
 211                            native (de)muxer exists [no]
 212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 214   --enable-libopencv       enable video filtering via libopencv [no]
 215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 216   --enable-libopus         enable Opus decoding via libopus [no]
 217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 218   --enable-libquvi         enable quvi input via libquvi [no]
 219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 222   --enable-libsoxr         enable Include libsoxr resampling [no]
 223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 225   --enable-libtheora       enable Theora encoding via libtheora [no]
 226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 229   --enable-libvidstab      enable video stabilization using vid.stab [no]
 230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 233                            native implementation exists [no]
 234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 235   --enable-libx264         enable H.264 encoding via x264 [no]
 236   --enable-libxavs         enable AVS encoding via xavs [no]
 237   --enable-libxvid         enable Xvid encoding via xvidcore,
 238                            native MPEG-4/Xvid encoder exists [no]
 239   --enable-libzmq          enable message passing via libzmq [no]
 240   --enable-openal          enable OpenAL 1.1 capture support [no]
 241   --enable-opencl          enable OpenCL code
 242   --enable-openssl         enable openssl [no]
 243   --enable-x11grab         enable X11 grabbing [no]
 244   --disable-zlib           disable zlib [autodetect]
 245
 246 Advanced options (experts only):
 247   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 248   --enable-cross-compile   assume a cross-compiler is used
 249   --sysroot=PATH           root of cross-build tree
 250   --sysinclude=PATH        location of cross-build system headers
 251   --target-os=OS           compiler targets OS [$target_os]
 252   --target-exec=CMD        command to run executables on target
 253   --target-path=DIR        path to view of build directory on target
 254   --target-samples=DIR     path to samples directory on target
 255   --toolchain=NAME         set tool defaults according to NAME
 256   --nm=NM                  use nm tool NM [$nm_default]
 257   --ar=AR                  use archive tool AR [$ar_default]
 258   --as=AS                  use assembler AS [$as_default]
 259   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 260   --cc=CC                  use C compiler CC [$cc_default]
 261   --cxx=CXX                use C compiler CXX [$cxx_default]
 262   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 263   --ld=LD                  use linker LD [$ld_default]
 264   --host-cc=HOSTCC         use host C compiler HOSTCC
 265   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 266   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 267   --host-ld=HOSTLD         use host linker HOSTLD
 268   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 269   --host-libs=HLIBS        use libs HLIBS when linking for host
 270   --host-os=OS             compiler host OS [$target_os]
 271   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 272   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 273   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 274   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 275   --extra-version=STRING   version string suffix []
 276   --optflags=OPTFLAGS      override optimization-related compiler flags
 277   --build-suffix=SUFFIX    library name suffix []
 278   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 279   --progs-suffix=SUFFIX    program name suffix []
 280   --arch=ARCH              select architecture [$arch]
 281   --cpu=CPU                select the minimum required CPU (affects
 282                            instruction selection, may crash on older CPUs)
 283   --enable-pic             build position-independent code
 284   --enable-sram            allow use of on-chip SRAM
 285   --enable-thumb           compile for Thumb instruction set
 286   --disable-symver         disable symbol versioning
 287   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 288   --disable-safe-bitstream-reader
 289                            disable buffer boundary checking in bitreaders
 290                            (faster, but may crash)
 291   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 292   --enable-lto             use link-time optimization
 293
 294 Optimization options (experts only):
 295   --disable-asm            disable all assembler optimizations
 296   --disable-altivec        disable AltiVec optimizations
 297   --disable-amd3dnow       disable 3DNow! optimizations
 298   --disable-amd3dnowext    disable 3DNow! extended optimizations
 299   --disable-mmx            disable MMX optimizations
 300   --disable-mmxext         disable MMXEXT optimizations
 301   --disable-sse            disable SSE optimizations
 302   --disable-sse2           disable SSE2 optimizations
 303   --disable-sse3           disable SSE3 optimizations
 304   --disable-ssse3          disable SSSE3 optimizations
 305   --disable-sse4           disable SSE4 optimizations
 306   --disable-sse42          disable SSE4.2 optimizations
 307   --disable-avx            disable AVX optimizations
 308   --disable-fma4           disable FMA4 optimizations
 309   --disable-armv5te        disable armv5te optimizations
 310   --disable-armv6          disable armv6 optimizations
 311   --disable-armv6t2        disable armv6t2 optimizations
 312   --disable-vfp            disable VFP optimizations
 313   --disable-neon           disable NEON optimizations
 314   --disable-vis            disable VIS optimizations
 315   --disable-inline-asm     disable use of inline assembler
 316   --disable-yasm           disable use of yasm assembler
 317   --disable-mips32r2       disable MIPS32R2 optimizations
 318   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 319   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 320   --disable-mipsfpu        disable floating point MIPS optimizations
 321   --disable-fast-unaligned consider unaligned accesses slow
 322
 323 Developer options (useful when working on FFmpeg itself):
 324   --disable-debug          disable debugging symbols
 325   --enable-debug=LEVEL     set the debug level [$debuglevel]
 326   --disable-optimizations  disable compiler optimizations
 327   --enable-extra-warnings  enable more compiler warnings
 328   --disable-stripping      disable stripping of executables and shared libraries
 329   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 330                            2 causes a slowdown at runtime.
 331   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 332   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 333                            leaks and errors, using the specified valgrind binary.
 334                            Cannot be combined with --target-exec
 335   --enable-ftrapv          Trap arithmetic overflows
 336   --samples=PATH           location of test samples for FATE, if not set use
 337                            \$FATE_SAMPLES at make invocation time.
 338   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 339                            should be used only for debugging purposes)
 340   --enable-random          randomly enable/disable components
 341   --disable-random
 342   --enable-random=LIST     randomly enable/disable specific components or
 343   --disable-random=LIST    component groups. LIST is a comma-separated list
 344                            of NAME[:PROB] entries where NAME is a component
 345                            (group) and PROB the probability associated with
 346                            NAME (default 0.5).
 347   --random-seed=VALUE      seed value for --enable/disable-random
 348
 349 NOTE: Object files are built at the place where configure is launched.
 350 EOF
 351   exit 0
 352 }
 353
 354 quotes='""'
 355
 356 log(){
 357     echo "$@" >> $logfile
 358 }
 359
 360 log_file(){
 361     log BEGIN $1
 362     pr -n -t $1 >> $logfile
 363     log END $1
 364 }
 365
 366 echolog(){
 367     log "$@"
 368     echo "$@"
 369 }
 370
 371 warn(){
 372     log "WARNING: $*"
 373     WARNINGS="${WARNINGS}WARNING: $*\n"
 374 }
 375
 376 die(){
 377     echolog "$@"
 378     cat <<EOF
 379
 380 If you think configure made a mistake, make sure you are using the latest
 381 version from Git.  If the latest version fails, report the problem to the
 382 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 383 EOF
 384     if disabled logging; then
 385         cat <<EOF
 386 Rerun configure with logging enabled (do not use --disable-logging), and
 387 include the log this produces with your report.
 388 EOF
 389     else
 390         cat <<EOF
 391 Include the log file "$logfile" produced by configure as this will help
 392 solving the problem.
 393 EOF
 394     fi
 395     exit 1
 396 }
 397
 398 # Avoid locale weirdness, besides we really just want to translate ASCII.
 399 toupper(){
 400     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 401 }
 402
 403 tolower(){
 404     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 405 }
 406
 407 c_escape(){
 408     echo "$*" | sed 's/["\\]/\\\0/g'
 409 }
 410
 411 sh_quote(){
 412     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 413     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 414     echo "$v"
 415 }
 416
 417 cleanws(){
 418     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 419 }
 420
 421 filter(){
 422     pat=$1
 423     shift
 424     for v; do
 425         eval "case $v in $pat) echo $v ;; esac"
 426     done
 427 }
 428
 429 filter_out(){
 430     pat=$1
 431     shift
 432     for v; do
 433         eval "case $v in $pat) ;; *) echo $v ;; esac"
 434     done
 435 }
 436
 437 map(){
 438     m=$1
 439     shift
 440     for v; do eval $m; done
 441 }
 442
 443 add_suffix(){
 444     suffix=$1
 445     shift
 446     for v; do echo ${v}${suffix}; done
 447 }
 448
 449 set_all(){
 450     value=$1
 451     shift
 452     for var in $*; do
 453         eval $var=$value
 454     done
 455 }
 456
 457 set_weak(){
 458     value=$1
 459     shift
 460     for var; do
 461         eval : \${$var:=$value}
 462     done
 463 }
 464
 465 sanitize_var_name(){
 466     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 467 }
 468
 469 set_safe(){
 470     var=$1
 471     shift
 472     eval $(sanitize_var_name "$var")='$*'
 473 }
 474
 475 get_safe(){
 476     eval echo \$$(sanitize_var_name "$1")
 477 }
 478
 479 pushvar(){
 480     for pvar in $*; do
 481         eval level=\${${pvar}_level:=0}
 482         eval ${pvar}_${level}="\$$pvar"
 483         eval ${pvar}_level=$(($level+1))
 484     done
 485 }
 486
 487 popvar(){
 488     for pvar in $*; do
 489         eval level=\${${pvar}_level:-0}
 490         test $level = 0 && continue
 491         eval level=$(($level-1))
 492         eval $pvar="\${${pvar}_${level}}"
 493         eval ${pvar}_level=$level
 494         eval unset ${pvar}_${level}
 495     done
 496 }
 497
 498 enable(){
 499     set_all yes $*
 500 }
 501
 502 disable(){
 503     set_all no $*
 504 }
 505
 506 enable_weak(){
 507     set_weak yes $*
 508 }
 509
 510 disable_weak(){
 511     set_weak no $*
 512 }
 513
 514 enable_safe(){
 515     for var; do
 516         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 517     done
 518 }
 519
 520 disable_safe(){
 521     for var; do
 522         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 523     done
 524 }
 525
 526 do_enable_deep(){
 527     for var; do
 528         enabled $var && continue
 529         eval sel="\$${var}_select"
 530         eval sgs="\$${var}_suggest"
 531         pushvar var sgs
 532         enable_deep $sel
 533         popvar sgs
 534         enable_deep_weak $sgs
 535         popvar var
 536     done
 537 }
 538
 539 enable_deep(){
 540     do_enable_deep $*
 541     enable $*
 542 }
 543
 544 enable_deep_weak(){
 545     for var; do
 546         disabled $var && continue
 547         pushvar var
 548         do_enable_deep $var
 549         popvar var
 550         enable_weak $var
 551     done
 552 }
 553
 554 enabled(){
 555     test "${1#!}" = "$1" && op== || op=!=
 556     eval test "x\$${1#!}" $op "xyes"
 557 }
 558
 559 disabled(){
 560     test "${1#!}" = "$1" && op== || op=!=
 561     eval test "x\$${1#!}" $op "xno"
 562 }
 563
 564 enabled_all(){
 565     for opt; do
 566         enabled $opt || return 1
 567     done
 568 }
 569
 570 disabled_all(){
 571     for opt; do
 572         disabled $opt || return 1
 573     done
 574 }
 575
 576 enabled_any(){
 577     for opt; do
 578         enabled $opt && return 0
 579     done
 580 }
 581
 582 disabled_any(){
 583     for opt; do
 584         disabled $opt && return 0
 585     done
 586     return 1
 587 }
 588
 589 set_default(){
 590     for opt; do
 591         eval : \${$opt:=\$${opt}_default}
 592     done
 593 }
 594
 595 is_in(){
 596     value=$1
 597     shift
 598     for var in $*; do
 599         [ $var = $value ] && return 0
 600     done
 601     return 1
 602 }
 603
 604 do_check_deps(){
 605     for cfg; do
 606         cfg="${cfg#!}"
 607         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 608         disabled ${cfg}_checking && continue
 609         enable ${cfg}_checking
 610         append allopts $cfg
 611
 612         eval dep_all="\$${cfg}_deps"
 613         eval dep_any="\$${cfg}_deps_any"
 614         eval dep_sel="\$${cfg}_select"
 615         eval dep_sgs="\$${cfg}_suggest"
 616         eval dep_ifa="\$${cfg}_if"
 617         eval dep_ifn="\$${cfg}_if_any"
 618
 619         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 620         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 621         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 622
 623         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 624         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 625         enabled_all  $dep_all || disable $cfg
 626         enabled_any  $dep_any || disable $cfg
 627         disabled_any $dep_sel && disable $cfg
 628
 629         if enabled $cfg; then
 630             enable_deep $dep_sel
 631             enable_deep_weak $dep_sgs
 632         fi
 633
 634         disable ${cfg}_checking
 635     done
 636 }
 637
 638 check_deps(){
 639     unset allopts
 640
 641     do_check_deps "$@"
 642
 643     for cfg in $allopts; do
 644         enabled $cfg || continue
 645         eval dep_extralibs="\$${cfg}_extralibs"
 646         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 647     done
 648 }
 649
 650 print_config(){
 651     pfx=$1
 652     files=$2
 653     shift 2
 654     map 'eval echo "$v \${$v:-no}"' "$@" |
 655     awk "BEGIN { split(\"$files\", files) }
 656         {
 657             c = \"$pfx\" toupper(\$1);
 658             v = \$2;
 659             sub(/yes/, 1, v);
 660             sub(/no/,  0, v);
 661             for (f in files) {
 662                 file = files[f];
 663                 if (file ~ /\\.h\$/) {
 664                     printf(\"#define %s %d\\n\", c, v) >>file;
 665                 } else if (file ~ /\\.asm\$/) {
 666                     printf(\"%%define %s %d\\n\", c, v) >>file;
 667                 } else if (file ~ /\\.mak\$/) {
 668                     n = -v ? \"\" : \"!\";
 669                     printf(\"%s%s=yes\\n\", n, c) >>file;
 670                 } else if (file ~ /\\.texi\$/) {
 671                     pre = -v ? \"\" : \"@c \";
 672                     yesno = \$2;
 673                     c2 = tolower(c);
 674                     gsub(/_/, \"-\", c2);
 675                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 676                 }
 677             }
 678         }"
 679 }
 680
 681 print_enabled(){
 682     suf=$1
 683     shift
 684     for v; do
 685         enabled $v && printf "%s\n" ${v%$suf};
 686     done
 687 }
 688
 689 append(){
 690     var=$1
 691     shift
 692     eval "$var=\"\$$var $*\""
 693 }
 694
 695 prepend(){
 696     var=$1
 697     shift
 698     eval "$var=\"$* \$$var\""
 699 }
 700
 701 add_cppflags(){
 702     append CPPFLAGS "$@"
 703 }
 704
 705 add_cflags(){
 706     append CFLAGS $($cflags_filter "$@")
 707 }
 708
 709 add_cxxflags(){
 710     append CXXFLAGS $($cflags_filter "$@")
 711 }
 712
 713 add_asflags(){
 714     append ASFLAGS $($asflags_filter "$@")
 715 }
 716
 717 add_ldflags(){
 718     append LDFLAGS $($ldflags_filter "$@")
 719 }
 720
 721 add_extralibs(){
 722     prepend extralibs $($ldflags_filter "$@")
 723 }
 724
 725 add_host_cppflags(){
 726     append host_cppflags "$@"
 727 }
 728
 729 add_host_cflags(){
 730     append host_cflags $($host_cflags_filter "$@")
 731 }
 732
 733 add_host_ldflags(){
 734     append host_ldflags $($host_ldflags_filter "$@")
 735 }
 736
 737 add_compat(){
 738     append compat_objs $1
 739     shift
 740     map 'add_cppflags -D$v' "$@"
 741 }
 742
 743 check_cmd(){
 744     log "$@"
 745     "$@" >> $logfile 2>&1
 746 }
 747
 748 cc_o(){
 749     eval printf '%s\\n' $CC_O
 750 }
 751
 752 cc_e(){
 753     eval printf '%s\\n' $CC_E
 754 }
 755
 756 check_cc(){
 757     log check_cc "$@"
 758     cat > $TMPC
 759     log_file $TMPC
 760     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 761 }
 762
 763 check_cxx(){
 764     log check_cxx "$@"
 765     cat > $TMPCPP
 766     log_file $TMPCPP
 767     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 768 }
 769
 770 check_cpp(){
 771     log check_cpp "$@"
 772     cat > $TMPC
 773     log_file $TMPC
 774     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 775 }
 776
 777 as_o(){
 778     eval printf '%s\\n' $AS_O
 779 }
 780
 781 check_as(){
 782     log check_as "$@"
 783     cat > $TMPS
 784     log_file $TMPS
 785     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 786 }
 787
 788 check_inline_asm(){
 789     log check_inline_asm "$@"
 790     name="$1"
 791     code="$2"
 792     shift 2
 793     disable $name
 794     check_cc "$@" <<EOF && enable $name
 795 void foo(void){ __asm__ volatile($code); }
 796 EOF
 797 }
 798
 799 check_insn(){
 800     log check_insn "$@"
 801     check_inline_asm ${1}_inline "\"$2\""
 802     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 803 }
 804
 805 check_yasm(){
 806     log check_yasm "$@"
 807     echo "$1" > $TMPS
 808     log_file $TMPS
 809     shift 1
 810     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 811 }
 812
 813 ld_o(){
 814     eval printf '%s\\n' $LD_O
 815 }
 816
 817 check_ld(){
 818     log check_ld "$@"
 819     type=$1
 820     shift 1
 821     flags=$(filter_out '-l*|*.so' $@)
 822     libs=$(filter '-l*|*.so' $@)
 823     check_$type $($cflags_filter $flags) || return
 824     flags=$($ldflags_filter $flags)
 825     libs=$($ldflags_filter $libs)
 826     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 827 }
 828
 829 check_code(){
 830     log check_code "$@"
 831     check=$1
 832     headers=$2
 833     code=$3
 834     shift 3
 835     {
 836         for hdr in $headers; do
 837             echo "#include <$hdr>"
 838         done
 839         echo "int main(void) { $code; return 0; }"
 840     } | check_$check "$@"
 841 }
 842
 843 check_cppflags(){
 844     log check_cppflags "$@"
 845     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 846 int x;
 847 EOF
 848 }
 849
 850 check_cflags(){
 851     log check_cflags "$@"
 852     set -- $($cflags_filter "$@")
 853     check_cc "$@" <<EOF && append CFLAGS "$@"
 854 int x;
 855 EOF
 856 }
 857
 858 check_cxxflags(){
 859     log check_cxxflags "$@"
 860     set -- $($cflags_filter "$@")
 861     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 862 int x;
 863 EOF
 864 }
 865
 866 test_ldflags(){
 867     log test_ldflags "$@"
 868     check_ld "cc" "$@" <<EOF
 869 int main(void){ return 0; }
 870 EOF
 871 }
 872
 873 check_ldflags(){
 874     log check_ldflags "$@"
 875     test_ldflags "$@" && add_ldflags "$@"
 876 }
 877
 878 check_header(){
 879     log check_header "$@"
 880     header=$1
 881     shift
 882     disable_safe $header
 883     check_cpp "$@" <<EOF && enable_safe $header
 884 #include <$header>
 885 int x;
 886 EOF
 887 }
 888
 889 check_func(){
 890     log check_func "$@"
 891     func=$1
 892     shift
 893     disable $func
 894     check_ld "cc" "$@" <<EOF && enable $func
 895 extern int $func();
 896 int main(void){ $func(); }
 897 EOF
 898 }
 899
 900 check_mathfunc(){
 901     log check_mathfunc "$@"
 902     func=$1
 903     narg=$2
 904     shift 2
 905     test $narg = 2 && args="f, g" || args="f"
 906     disable $func
 907     check_ld "cc" "$@" <<EOF && enable $func
 908 #include <math.h>
 909 float foo(float f, float g) { return $func($args); }
 910 int main(void){ return (int) foo; }
 911 EOF
 912 }
 913
 914 check_func_headers(){
 915     log check_func_headers "$@"
 916     headers=$1
 917     funcs=$2
 918     shift 2
 919     {
 920         for hdr in $headers; do
 921             echo "#include <$hdr>"
 922         done
 923         for func in $funcs; do
 924             echo "long check_$func(void) { return (long) $func; }"
 925         done
 926         echo "int main(void) { return 0; }"
 927     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 928 }
 929
 930 check_class_headers_cpp(){
 931     log check_class_headers_cpp "$@"
 932     headers=$1
 933     classes=$2
 934     shift 2
 935     {
 936         for hdr in $headers; do
 937             echo "#include <$hdr>"
 938         done
 939         echo "int main(void) { "
 940         i=1
 941         for class in $classes; do
 942             echo "$class obj$i;"
 943             i=$(expr $i + 1)
 944         done
 945         echo "return 0; }"
 946     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 947 }
 948
 949 check_cpp_condition(){
 950     log check_cpp_condition "$@"
 951     header=$1
 952     condition=$2
 953     shift 2
 954     check_cpp "$@" <<EOF
 955 #include <$header>
 956 #if !($condition)
 957 #error "unsatisfied condition: $condition"
 958 #endif
 959 EOF
 960 }
 961
 962 check_lib(){
 963     log check_lib "$@"
 964     header="$1"
 965     func="$2"
 966     shift 2
 967     check_header $header && check_func $func "$@" && add_extralibs "$@"
 968 }
 969
 970 check_lib2(){
 971     log check_lib2 "$@"
 972     headers="$1"
 973     funcs="$2"
 974     shift 2
 975     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 976 }
 977
 978 check_lib_cpp(){
 979     log check_lib_cpp "$@"
 980     headers="$1"
 981     classes="$2"
 982     shift 2
 983     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 984 }
 985
 986 check_pkg_config(){
 987     log check_pkg_config "$@"
 988     pkg="$1"
 989     headers="$2"
 990     funcs="$3"
 991     shift 3
 992     $pkg_config --exists $pkg 2>/dev/null || return
 993     pkg_cflags=$($pkg_config --cflags $pkg)
 994     pkg_libs=$($pkg_config --libs $pkg)
 995     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 996         set_safe ${pkg}_cflags $pkg_cflags   &&
 997         set_safe ${pkg}_libs   $pkg_libs
 998 }
 999
1000 check_exec(){
1001     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1002 }
1003
1004 check_exec_crash(){
1005     code=$(cat)
1006
1007     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1008     # are safe but may not be available everywhere.  Thus we use
1009     # raise(SIGTERM) instead.  The check is run in a subshell so we
1010     # can redirect the "Terminated" message from the shell.  SIGBUS
1011     # is not defined by standard C so it is used conditionally.
1012
1013     (check_exec "$@") >> $logfile 2>&1 <<EOF
1014 #include <signal.h>
1015 static void sighandler(int sig){
1016     raise(SIGTERM);
1017 }
1018 int foo(void){
1019     $code
1020 }
1021 int (*func_ptr)(void) = foo;
1022 int main(void){
1023     signal(SIGILL, sighandler);
1024     signal(SIGFPE, sighandler);
1025     signal(SIGSEGV, sighandler);
1026 #ifdef SIGBUS
1027     signal(SIGBUS, sighandler);
1028 #endif
1029     return func_ptr();
1030 }
1031 EOF
1032 }
1033
1034 check_type(){
1035     log check_type "$@"
1036     headers=$1
1037     type=$2
1038     shift 2
1039     disable_safe "$type"
1040     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1041 }
1042
1043 check_struct(){
1044     log check_struct "$@"
1045     headers=$1
1046     struct=$2
1047     member=$3
1048     shift 3
1049     disable_safe "${struct}_${member}"
1050     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1051         enable_safe "${struct}_${member}"
1052 }
1053
1054 check_builtin(){
1055     log check_builtin "$@"
1056     name=$1
1057     headers=$2
1058     builtin=$3
1059     shift 3
1060     disable "$name"
1061     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1062 }
1063
1064 require(){
1065     name="$1"
1066     header="$2"
1067     func="$3"
1068     shift 3
1069     check_lib $header $func "$@" || die "ERROR: $name not found"
1070 }
1071
1072 require2(){
1073     name="$1"
1074     headers="$2"
1075     func="$3"
1076     shift 3
1077     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1078 }
1079
1080 require_cpp(){
1081     name="$1"
1082     headers="$2"
1083     classes="$3"
1084     shift 3
1085     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1086 }
1087
1088 require_pkg_config(){
1089     pkg="$1"
1090     check_pkg_config "$@" || die "ERROR: $pkg not found"
1091     add_cflags    $(get_safe ${pkg}_cflags)
1092     add_extralibs $(get_safe ${pkg}_libs)
1093 }
1094
1095 hostcc_o(){
1096     eval printf '%s\\n' $HOSTCC_O
1097 }
1098
1099 check_host_cc(){
1100     log check_host_cc "$@"
1101     cat > $TMPC
1102     log_file $TMPC
1103     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1104 }
1105
1106 check_host_cppflags(){
1107     log check_host_cppflags "$@"
1108     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1109 int x;
1110 EOF
1111 }
1112
1113 check_host_cflags(){
1114     log check_host_cflags "$@"
1115     set -- $($host_cflags_filter "$@")
1116     check_host_cc "$@" <<EOF && append host_cflags "$@"
1117 int x;
1118 EOF
1119 }
1120
1121 apply(){
1122     file=$1
1123     shift
1124     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1125 }
1126
1127 cp_if_changed(){
1128     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1129     mkdir -p "$(dirname $2)"
1130     $cp_f "$1" "$2"
1131 }
1132
1133 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1134 # system-dependent things.
1135
1136 COMPONENT_LIST="
1137     bsfs
1138     decoders
1139     demuxers
1140     encoders
1141     filters
1142     hwaccels
1143     indevs
1144     muxers
1145     outdevs
1146     parsers
1147     protocols
1148 "
1149
1150 EXTERNAL_LIBRARY_LIST="
1151     avisynth
1152     bzlib
1153     crystalhd
1154     fontconfig
1155     frei0r
1156     gnutls
1157     iconv
1158     libaacplus
1159     libass
1160     libbluray
1161     libcaca
1162     libcdio
1163     libcelt
1164     libdc1394
1165     libfaac
1166     libfdk_aac
1167     libflite
1168     libfreetype
1169     libgsm
1170     libiec61883
1171     libilbc
1172     libmodplug
1173     libmp3lame
1174     libnut
1175     libopencore_amrnb
1176     libopencore_amrwb
1177     libopencv
1178     libopenjpeg
1179     libopus
1180     libpulse
1181     libquvi
1182     librtmp
1183     libschroedinger
1184     libshine
1185     libsoxr
1186     libspeex
1187     libstagefright_h264
1188     libtheora
1189     libtwolame
1190     libutvideo
1191     libv4l2
1192     libvidstab
1193     libvo_aacenc
1194     libvo_amrwbenc
1195     libvorbis
1196     libvpx
1197     libx264
1198     libxavs
1199     libxvid
1200     libzmq
1201     openal
1202     opencl
1203     openssl
1204     x11grab
1205     zlib
1206 "
1207
1208 DOCUMENT_LIST="
1209     doc
1210     htmlpages
1211     manpages
1212     podpages
1213     txtpages
1214 "
1215
1216 HWACCEL_LIST="
1217     dxva2
1218     vaapi
1219     vda
1220     vdpau
1221 "
1222
1223 LIBRARY_LIST="
1224     avcodec
1225     avdevice
1226     avfilter
1227     avformat
1228     avresample
1229     avutil
1230     postproc
1231     swresample
1232     swscale
1233 "
1234
1235 PROGRAM_LIST="
1236     ffplay
1237     ffprobe
1238     ffserver
1239     ffmpeg
1240 "
1241
1242 CONFIG_LIST="
1243     $COMPONENT_LIST
1244     $DOCUMENT_LIST
1245     $EXTERNAL_LIBRARY_LIST
1246     $HWACCEL_LIST
1247     $LIBRARY_LIST
1248     $PROGRAM_LIST
1249     dct
1250     dwt
1251     error_resilience
1252     fast_unaligned
1253     fft
1254     ftrapv
1255     gpl
1256     gray
1257     hardcoded_tables
1258     incompatible_fork_abi
1259     lsp
1260     lzo
1261     mdct
1262     memalign_hack
1263     memory_poisoning
1264     network
1265     nonfree
1266     pic
1267     rdft
1268     runtime_cpudetect
1269     safe_bitstream_reader
1270     shared
1271     small
1272     sram
1273     static
1274     swscale_alpha
1275     thumb
1276     version3
1277     xmm_clobber_test
1278 "
1279
1280 THREADS_LIST='
1281     pthreads
1282     w32threads
1283     os2threads
1284 '
1285
1286 ATOMICS_LIST='
1287     atomics_gcc
1288     atomics_suncc
1289     atomics_win32
1290 '
1291
1292 ARCH_LIST='
1293     aarch64
1294     alpha
1295     arm
1296     avr32
1297     avr32_ap
1298     avr32_uc
1299     bfin
1300     ia64
1301     m68k
1302     mips
1303     mips64
1304     parisc
1305     ppc
1306     ppc64
1307     s390
1308     sh4
1309     sparc
1310     sparc64
1311     tilegx
1312     tilepro
1313     tomi
1314     x86
1315     x86_32
1316     x86_64
1317 '
1318
1319 ARCH_EXT_LIST_ARM='
1320     armv5te
1321     armv6
1322     armv6t2
1323     neon
1324     vfp
1325     vfpv3
1326 '
1327
1328 ARCH_EXT_LIST_X86='
1329     amd3dnow
1330     amd3dnowext
1331     avx
1332     fma4
1333     mmx
1334     mmxext
1335     sse
1336     sse2
1337     sse3
1338     sse4
1339     sse42
1340     ssse3
1341 '
1342
1343 ARCH_EXT_LIST="
1344     $ARCH_EXT_LIST_ARM
1345     $ARCH_EXT_LIST_X86
1346     altivec
1347     ppc4xx
1348     vis
1349     mipsfpu
1350     mips32r2
1351     mipsdspr1
1352     mipsdspr2
1353 "
1354
1355 HAVE_LIST_CMDLINE='
1356     inline_asm
1357     symver
1358     yasm
1359 '
1360
1361 HAVE_LIST_PUB='
1362     bigendian
1363     fast_unaligned
1364     incompatible_fork_abi
1365 '
1366
1367 MATH_FUNCS="
1368     atanf
1369     atan2f
1370     cbrt
1371     cbrtf
1372     cosf
1373     exp2
1374     exp2f
1375     expf
1376     isinf
1377     isnan
1378     ldexpf
1379     llrint
1380     llrintf
1381     log2
1382     log2f
1383     log10f
1384     lrint
1385     lrintf
1386     powf
1387     rint
1388     round
1389     roundf
1390     sinf
1391     trunc
1392     truncf
1393 "
1394
1395 HAVE_LIST="
1396     $ARCH_EXT_LIST
1397     $(add_suffix _external $ARCH_EXT_LIST)
1398     $(add_suffix _inline   $ARCH_EXT_LIST)
1399     $HAVE_LIST_CMDLINE
1400     $HAVE_LIST_PUB
1401     $THREADS_LIST
1402     $ATOMICS_LIST
1403     $MATH_FUNCS
1404     access
1405     aligned_malloc
1406     aligned_stack
1407     alsa_asoundlib_h
1408     altivec_h
1409     arpa_inet_h
1410     asm_mod_q
1411     asm_mod_y
1412     asm_types_h
1413     atomic_cas_ptr
1414     atomics_native
1415     attribute_may_alias
1416     attribute_packed
1417     cdio_paranoia_h
1418     cdio_paranoia_paranoia_h
1419     CL_cl_h
1420     clock_gettime
1421     closesocket
1422     CommandLineToArgvW
1423     cpunop
1424     CryptGenRandom
1425     dcbzl
1426     dev_bktr_ioctl_bt848_h
1427     dev_bktr_ioctl_meteor_h
1428     dev_ic_bt8xx_h
1429     dev_video_bktr_ioctl_bt848_h
1430     dev_video_meteor_ioctl_meteor_h
1431     direct_h
1432     dlfcn_h
1433     dlopen
1434     dos_paths
1435     dxva_h
1436     ebp_available
1437     ebx_available
1438     fast_64bit
1439     fast_clz
1440     fast_cmov
1441     fcntl
1442     fork
1443     getaddrinfo
1444     gethrtime
1445     getopt
1446     GetProcessAffinityMask
1447     GetProcessMemoryInfo
1448     GetProcessTimes
1449     GetSystemTimeAsFileTime
1450     getrusage
1451     getservbyport
1452     gettimeofday
1453     glob
1454     gnu_as
1455     gsm_h
1456     i686
1457     ibm_asm
1458     inet_aton
1459     io_h
1460     isatty
1461     jack_port_get_latency_range
1462     kbhit
1463     ldbrx
1464     libdc1394_1
1465     libdc1394_2
1466     local_aligned_16
1467     local_aligned_8
1468     localtime_r
1469     loongson
1470     lzo1x_999_compress
1471     machine_ioctl_bt848_h
1472     machine_ioctl_meteor_h
1473     machine_rw_barrier
1474     makeinfo
1475     malloc_h
1476     MapViewOfFile
1477     memalign
1478     MemoryBarrier
1479     mkstemp
1480     mm_empty
1481     mmap
1482     mprotect
1483     msvcrt
1484     nanosleep
1485     openjpeg_1_5_openjpeg_h
1486     PeekNamedPipe
1487     perl
1488     pod2man
1489     poll_h
1490     posix_memalign
1491     pthread_cancel
1492     rdtsc
1493     rsync_contimeout
1494     sched_getaffinity
1495     sdl
1496     SetConsoleTextAttribute
1497     setmode
1498     setrlimit
1499     Sleep
1500     sndio_h
1501     socklen_t
1502     soundcard_h
1503     strerror_r
1504     struct_addrinfo
1505     struct_group_source_req
1506     struct_ip_mreq_source
1507     struct_ipv6_mreq
1508     struct_pollfd
1509     struct_rusage_ru_maxrss
1510     struct_sctp_event_subscribe
1511     struct_sockaddr_in6
1512     struct_sockaddr_sa_len
1513     struct_sockaddr_storage
1514     struct_v4l2_frmivalenum_discrete
1515     symver_asm_label
1516     symver_gnu_asm
1517     sync_val_compare_and_swap
1518     sysconf
1519     sysctl
1520     sys_mman_h
1521     sys_param_h
1522     sys_resource_h
1523     sys_select_h
1524     sys_soundcard_h
1525     sys_time_h
1526     sys_videoio_h
1527     termios_h
1528     texi2html
1529     threads
1530     unistd_h
1531     usleep
1532     vfp_args
1533     VirtualAlloc
1534     windows_h
1535     winsock2_h
1536     xform_asm
1537     xmm_clobbers
1538 "
1539
1540 # options emitted with CONFIG_ prefix but not available on the command line
1541 CONFIG_EXTRA="
1542     aandcttables
1543     ac3dsp
1544     audio_frame_queue
1545     dsputil
1546     frame_thread_encoder
1547     gcrypt
1548     golomb
1549     gplv3
1550     h264chroma
1551     h264dsp
1552     h264pred
1553     h264qpel
1554     hpeldsp
1555     huffman
1556     lgplv3
1557     lpc
1558     mpegaudio
1559     mpegaudiodsp
1560     mpegvideo
1561     mpegvideoenc
1562     nettle
1563     rangecoder
1564     rtpdec
1565     rtpenc_chain
1566     sinewin
1567     videodsp
1568     vp3dsp
1569 "
1570
1571 CMDLINE_SELECT="
1572     $ARCH_EXT_LIST
1573     $CONFIG_LIST
1574     $HAVE_LIST_CMDLINE
1575     $THREADS_LIST
1576     asm
1577     cross_compile
1578     debug
1579     extra_warnings
1580     logging
1581     lto
1582     optimizations
1583     stripping
1584 "
1585
1586 PATHS_LIST='
1587     bindir
1588     datadir
1589     incdir
1590     libdir
1591     mandir
1592     prefix
1593     shlibdir
1594 '
1595
1596 CMDLINE_SET="
1597     $PATHS_LIST
1598     ar
1599     arch
1600     as
1601     assert_level
1602     build_suffix
1603     cc
1604     cpu
1605     cross_prefix
1606     cxx
1607     dep_cc
1608     extra_version
1609     host_cc
1610     host_cflags
1611     host_ld
1612     host_ldflags
1613     host_libs
1614     host_os
1615     install
1616     ld
1617     logfile
1618     malloc_prefix
1619     nm
1620     optflags
1621     pkg_config
1622     progs_suffix
1623     random_seed
1624     samples
1625     strip
1626     sysinclude
1627     sysroot
1628     target_exec
1629     target_os
1630     target_path
1631     target_samples
1632     toolchain
1633     valgrind
1634     yasmexe
1635 "
1636
1637 CMDLINE_APPEND="
1638     extra_cflags
1639     extra_cxxflags
1640     host_cppflags
1641 "
1642
1643 # code dependency declarations
1644
1645 # architecture extensions
1646
1647 armv5te_deps="arm"
1648 armv6_deps="arm"
1649 armv6t2_deps="arm"
1650 neon_deps="arm"
1651 vfp_deps="arm"
1652 vfpv3_deps="vfp"
1653
1654 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1655
1656 mipsfpu_deps="mips"
1657 mips32r2_deps="mips"
1658 mipsdspr1_deps="mips"
1659 mipsdspr2_deps="mips"
1660
1661 altivec_deps="ppc"
1662 ppc4xx_deps="ppc"
1663
1664 vis_deps="sparc"
1665
1666 x86_64_suggest="fast_cmov i686"
1667
1668 amd3dnow_deps="mmx"
1669 amd3dnowext_deps="amd3dnow"
1670 mmx_deps="x86"
1671 mmxext_deps="mmx"
1672 sse_deps="mmxext"
1673 sse2_deps="sse"
1674 sse3_deps="sse2"
1675 ssse3_deps="sse3"
1676 sse4_deps="ssse3"
1677 sse42_deps="sse4"
1678 avx_deps="sse42"
1679 fma4_deps="avx"
1680
1681 mmx_external_deps="yasm"
1682 mmx_inline_deps="inline_asm"
1683 mmx_suggest="mmx_external mmx_inline"
1684
1685 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1686     eval dep=\$${ext}_deps
1687     eval ${ext}_external_deps='"${dep}_external"'
1688     eval ${ext}_inline_deps='"${dep}_inline"'
1689     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1690 done
1691
1692 aligned_stack_if_any="ppc x86"
1693 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1694 fast_clz_if_any="alpha avr32 mips ppc x86"
1695 fast_unaligned_if_any="ppc x86"
1696
1697 inline_asm_deps="!tms470"
1698 need_memalign="altivec neon sse"
1699
1700 symver_if_any="symver_asm_label symver_gnu_asm"
1701
1702 log2_deps="!msvcrt"
1703
1704 # subsystems
1705 dct_select="rdft"
1706 error_resilience_select="dsputil"
1707 frame_thread_encoder_deps="encoders threads"
1708 lpc_select="dsputil"
1709 mdct_select="fft"
1710 rdft_select="fft"
1711 mpegaudio_select="mpegaudiodsp"
1712 mpegaudiodsp_select="dct"
1713 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1714 mpegvideoenc_select="mpegvideo"
1715
1716 # decoders / encoders
1717 aac_decoder_select="mdct sinewin"
1718 aac_encoder_select="audio_frame_queue mdct sinewin"
1719 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1720 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1721 ac3_encoder_select="mdct ac3dsp dsputil"
1722 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1723 aic_decoder_select="dsputil golomb"
1724 alac_encoder_select="lpc"
1725 als_decoder_select="dsputil"
1726 amrnb_decoder_select="lsp"
1727 amrwb_decoder_select="lsp"
1728 amv_decoder_select="dsputil hpeldsp"
1729 amv_encoder_select="aandcttables"
1730 ape_decoder_select="dsputil"
1731 asv1_decoder_select="dsputil"
1732 asv1_encoder_select="dsputil"
1733 asv2_decoder_select="dsputil"
1734 asv2_encoder_select="dsputil"
1735 atrac1_decoder_select="mdct sinewin"
1736 atrac3_decoder_select="mdct"
1737 bink_decoder_select="dsputil hpeldsp"
1738 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1739 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1740 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1741 cllc_decoder_select="dsputil"
1742 comfortnoise_encoder_select="lpc"
1743 cook_decoder_select="dsputil mdct sinewin"
1744 cscd_decoder_select="lzo"
1745 cscd_decoder_suggest="zlib"
1746 dca_decoder_select="mdct"
1747 dirac_decoder_select="dsputil dwt golomb videodsp"
1748 dnxhd_decoder_select="dsputil"
1749 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1750 dvvideo_decoder_select="dsputil"
1751 dvvideo_encoder_select="dsputil"
1752 dxa_decoder_select="zlib"
1753 eac3_decoder_select="ac3_decoder"
1754 eac3_encoder_select="ac3_encoder"
1755 eamad_decoder_select="aandcttables dsputil mpegvideo"
1756 eatgq_decoder_select="aandcttables"
1757 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1758 exr_decoder_select="zlib"
1759 ffv1_decoder_select="dsputil golomb rangecoder"
1760 ffv1_encoder_select="dsputil rangecoder"
1761 ffvhuff_decoder_select="dsputil"
1762 ffvhuff_encoder_select="dsputil huffman"
1763 flac_decoder_select="golomb"
1764 flac_encoder_select="dsputil golomb lpc"
1765 flashsv_decoder_select="zlib"
1766 flashsv_encoder_select="zlib"
1767 flashsv2_encoder_select="zlib"
1768 flashsv2_decoder_select="zlib"
1769 flv_decoder_select="h263_decoder"
1770 flv_encoder_select="h263_encoder"
1771 fourxm_decoder_select="dsputil"
1772 fraps_decoder_select="dsputil huffman"
1773 g729_decoder_select="dsputil"
1774 h261_decoder_select="error_resilience mpegvideo"
1775 h261_encoder_select="aandcttables mpegvideoenc"
1776 h263_decoder_select="error_resilience h263_parser mpegvideo"
1777 h263_encoder_select="aandcttables mpegvideoenc"
1778 h263i_decoder_select="h263_decoder"
1779 h263p_encoder_select="h263_encoder"
1780 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1781 h264_decoder_suggest="error_resilience"
1782 huffyuv_decoder_select="dsputil"
1783 huffyuv_encoder_select="dsputil huffman"
1784 iac_decoder_select="dsputil fft mdct sinewin"
1785 imc_decoder_select="dsputil fft mdct sinewin"
1786 indeo3_decoder_select="hpeldsp"
1787 interplay_video_decoder_select="hpeldsp"
1788 jpegls_decoder_select="dsputil golomb hpeldsp"
1789 jpegls_encoder_select="golomb"
1790 jv_decoder_select="dsputil"
1791 lagarith_decoder_select="dsputil"
1792 ljpeg_encoder_select="aandcttables mpegvideoenc"
1793 loco_decoder_select="golomb"
1794 mdec_decoder_select="dsputil error_resilience mpegvideo"
1795 mimic_decoder_select="dsputil hpeldsp"
1796 mjpeg_decoder_select="dsputil hpeldsp"
1797 mjpegb_decoder_select="dsputil hpeldsp"
1798 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1799 mlp_decoder_select="dsputil mlp_parser"
1800 motionpixels_decoder_select="dsputil"
1801 mp1_decoder_select="mpegaudio"
1802 mp1float_decoder_select="mpegaudio"
1803 mp2_decoder_select="mpegaudio"
1804 mp2float_decoder_select="mpegaudio"
1805 mp3_decoder_select="mpegaudio"
1806 mp3adu_decoder_select="mpegaudio"
1807 mp3adufloat_decoder_select="mpegaudio"
1808 mp3float_decoder_select="mpegaudio"
1809 mp3on4_decoder_select="mpegaudio"
1810 mp3on4float_decoder_select="mpegaudio"
1811 mpc7_decoder_select="dsputil mpegaudiodsp"
1812 mpc8_decoder_select="dsputil mpegaudiodsp"
1813 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1814 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1815 mpeg1video_decoder_select="error_resilience mpegvideo"
1816 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1817 mpeg2video_decoder_select="error_resilience mpegvideo"
1818 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1819 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1820 mpeg4_encoder_select="h263_encoder"
1821 msmpeg4v1_decoder_select="h263_decoder"
1822 msmpeg4v2_decoder_select="h263_decoder"
1823 msmpeg4v2_encoder_select="h263_encoder"
1824 msmpeg4v3_decoder_select="h263_decoder"
1825 msmpeg4v3_encoder_select="h263_encoder"
1826 mss2_decoder_select="error_resilience vc1_decoder"
1827 mxpeg_decoder_select="dsputil hpeldsp"
1828 nellymoser_decoder_select="mdct sinewin"
1829 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1830 nuv_decoder_select="dsputil lzo"
1831 png_decoder_select="zlib"
1832 png_encoder_select="dsputil zlib"
1833 prores_decoder_select="dsputil"
1834 prores_encoder_select="dsputil"
1835 qcelp_decoder_select="lsp"
1836 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1837 ra_144_encoder_select="audio_frame_queue lpc"
1838 ralf_decoder_select="golomb"
1839 rtjpeg_decoder_select="dsputil"
1840 rv10_decoder_select="error_resilience h263_decoder"
1841 rv10_encoder_select="h263_encoder"
1842 rv20_decoder_select="error_resilience h263_decoder"
1843 rv20_encoder_select="h263_encoder"
1844 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1845 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1846 shorten_decoder_select="golomb"
1847 sipr_decoder_select="lsp"
1848 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1849 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1850 sonic_decoder_select="golomb"
1851 sonic_encoder_select="golomb"
1852 sonic_ls_encoder_select="golomb"
1853 sp5x_decoder_select="dsputil hpeldsp"
1854 svq1_decoder_select="hpeldsp"
1855 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1856 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1857 svq3_decoder_suggest="error_resilience zlib"
1858 tak_decoder_select="dsputil"
1859 theora_decoder_select="vp3_decoder"
1860 tiff_decoder_suggest="zlib"
1861 tiff_encoder_suggest="zlib"
1862 thp_decoder_select="dsputil hpeldsp"
1863 truehd_decoder_select="mlp_parser"
1864 truemotion2_decoder_select="dsputil"
1865 truespeech_decoder_select="dsputil"
1866 tscc_decoder_select="zlib"
1867 twinvq_decoder_select="mdct lsp sinewin"
1868 utvideo_decoder_select="dsputil"
1869 utvideo_encoder_select="dsputil huffman"
1870 vble_decoder_select="dsputil"
1871 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1872 vc1image_decoder_select="vc1_decoder"
1873 vorbis_decoder_select="mdct"
1874 vorbis_encoder_select="mdct"
1875 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1876 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1877 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1878 vp6a_decoder_select="vp6_decoder"
1879 vp6f_decoder_select="vp6_decoder"
1880 vp8_decoder_select="h264pred videodsp"
1881 wmapro_decoder_select="mdct sinewin"
1882 wmav1_decoder_select="mdct sinewin"
1883 wmav1_encoder_select="mdct sinewin"
1884 wmav2_decoder_select="mdct sinewin"
1885 wmav2_encoder_select="mdct sinewin"
1886 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1887 wmv1_decoder_select="h263_decoder"
1888 wmv1_encoder_select="h263_encoder"
1889 wmv2_decoder_select="h263_decoder videodsp"
1890 wmv2_encoder_select="h263_encoder"
1891 wmv3_decoder_select="vc1_decoder"
1892 wmv3image_decoder_select="wmv3_decoder"
1893 zerocodec_decoder_select="zlib"
1894 zlib_decoder_select="zlib"
1895 zlib_encoder_select="zlib"
1896 zmbv_decoder_select="zlib"
1897 zmbv_encoder_select="zlib"
1898
1899 # hardware accelerators
1900 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1901 dxva2_deps="dxva2api_h"
1902 vaapi_deps="va_va_h"
1903 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1904 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1905 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1906
1907 h263_vaapi_hwaccel_deps="vaapi"
1908 h263_vaapi_hwaccel_select="h263_decoder"
1909 h263_vdpau_hwaccel_deps="vdpau"
1910 h263_vdpau_hwaccel_select="h263_decoder"
1911 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1912 h264_dxva2_hwaccel_deps="dxva2"
1913 h264_dxva2_hwaccel_select="h264_decoder"
1914 h264_vaapi_hwaccel_deps="vaapi"
1915 h264_vaapi_hwaccel_select="h264_decoder"
1916 h264_vda_decoder_deps="vda"
1917 h264_vda_decoder_select="h264_decoder"
1918 h264_vda_hwaccel_deps="vda"
1919 h264_vda_hwaccel_select="h264_decoder"
1920 h264_vdpau_decoder_deps="vdpau"
1921 h264_vdpau_decoder_select="h264_decoder"
1922 h264_vdpau_hwaccel_deps="vdpau"
1923 h264_vdpau_hwaccel_select="h264_decoder"
1924 mpeg_vdpau_decoder_deps="vdpau"
1925 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1926 mpeg1_vdpau_decoder_deps="vdpau"
1927 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1928 mpeg1_vdpau_hwaccel_deps="vdpau"
1929 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1930 mpeg2_crystalhd_decoder_select="crystalhd"
1931 mpeg2_dxva2_hwaccel_deps="dxva2"
1932 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1933 mpeg2_vaapi_hwaccel_deps="vaapi"
1934 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1935 mpeg2_vdpau_hwaccel_deps="vdpau"
1936 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1937 mpeg4_crystalhd_decoder_select="crystalhd"
1938 mpeg4_vaapi_hwaccel_deps="vaapi"
1939 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1940 mpeg4_vdpau_decoder_deps="vdpau"
1941 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1942 mpeg4_vdpau_hwaccel_deps="vdpau"
1943 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1944 msmpeg4_crystalhd_decoder_select="crystalhd"
1945 vc1_crystalhd_decoder_select="crystalhd"
1946 vc1_dxva2_hwaccel_deps="dxva2"
1947 vc1_dxva2_hwaccel_select="vc1_decoder"
1948 vc1_vaapi_hwaccel_deps="vaapi"
1949 vc1_vaapi_hwaccel_select="vc1_decoder"
1950 vc1_vdpau_decoder_deps="vdpau"
1951 vc1_vdpau_decoder_select="vc1_decoder"
1952 vc1_vdpau_hwaccel_deps="vdpau"
1953 vc1_vdpau_hwaccel_select="vc1_decoder"
1954 wmv3_crystalhd_decoder_select="crystalhd"
1955 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1956 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1957 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1958 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1959
1960 # parsers
1961 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1962 mpeg4video_parser_select="error_resilience mpegvideo"
1963 mpegvideo_parser_select="error_resilience mpegvideo"
1964 vc1_parser_select="mpegvideo"
1965
1966 # external libraries
1967 libaacplus_encoder_deps="libaacplus"
1968 libcelt_decoder_deps="libcelt"
1969 libfaac_encoder_deps="libfaac"
1970 libfaac_encoder_select="audio_frame_queue"
1971 libfdk_aac_encoder_deps="libfdk_aac"
1972 libfdk_aac_encoder_select="audio_frame_queue"
1973 libgsm_decoder_deps="libgsm"
1974 libgsm_encoder_deps="libgsm"
1975 libgsm_ms_decoder_deps="libgsm"
1976 libgsm_ms_encoder_deps="libgsm"
1977 libilbc_decoder_deps="libilbc"
1978 libilbc_encoder_deps="libilbc"
1979 libmodplug_demuxer_deps="libmodplug"
1980 libmp3lame_encoder_deps="libmp3lame"
1981 libmp3lame_encoder_select="audio_frame_queue"
1982 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1983 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1984 libopencore_amrnb_encoder_select="audio_frame_queue"
1985 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1986 libopenjpeg_decoder_deps="libopenjpeg"
1987 libopenjpeg_encoder_deps="libopenjpeg"
1988 libopus_decoder_deps="libopus"
1989 libopus_encoder_deps="libopus"
1990 libopus_encoder_select="audio_frame_queue"
1991 libquvi_demuxer_deps="libquvi"
1992 libschroedinger_decoder_deps="libschroedinger"
1993 libschroedinger_encoder_deps="libschroedinger"
1994 libshine_encoder_deps="libshine"
1995 libshine_encoder_select="audio_frame_queue"
1996 libspeex_decoder_deps="libspeex"
1997 libspeex_encoder_deps="libspeex"
1998 libspeex_encoder_select="audio_frame_queue"
1999 libstagefright_h264_decoder_deps="libstagefright_h264"
2000 libtheora_encoder_deps="libtheora"
2001 libtwolame_encoder_deps="libtwolame"
2002 libvo_aacenc_encoder_deps="libvo_aacenc"
2003 libvo_aacenc_encoder_select="audio_frame_queue"
2004 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2005 libvorbis_decoder_deps="libvorbis"
2006 libvorbis_encoder_deps="libvorbis"
2007 libvorbis_encoder_select="audio_frame_queue"
2008 libvpx_vp8_decoder_deps="libvpx"
2009 libvpx_vp8_encoder_deps="libvpx"
2010 libvpx_vp9_decoder_deps="libvpx"
2011 libvpx_vp9_encoder_deps="libvpx"
2012 libx264_encoder_deps="libx264"
2013 libx264rgb_encoder_deps="libx264"
2014 libxavs_encoder_deps="libxavs"
2015 libxvid_encoder_deps="libxvid"
2016 libutvideo_decoder_deps="libutvideo"
2017 libutvideo_encoder_deps="libutvideo"
2018
2019 # demuxers / muxers
2020 ac3_demuxer_select="ac3_parser"
2021 asf_stream_muxer_select="asf_muxer"
2022 avisynth_demuxer_deps="avisynth"
2023 dirac_demuxer_select="dirac_parser"
2024 dts_demuxer_select="dca_parser"
2025 dtshd_demuxer_select="dca_parser"
2026 eac3_demuxer_select="ac3_parser"
2027 f4v_muxer_select="mov_muxer"
2028 flac_demuxer_select="flac_parser"
2029 ipod_muxer_select="mov_muxer"
2030 ismv_muxer_select="mov_muxer"
2031 libnut_demuxer_deps="libnut"
2032 libnut_muxer_deps="libnut"
2033 matroska_audio_muxer_select="matroska_muxer"
2034 matroska_demuxer_suggest="bzlib lzo zlib"
2035 mov_demuxer_suggest="zlib"
2036 mov_muxer_select="rtpenc_chain"
2037 mp3_demuxer_select="mpegaudio_parser"
2038 mp4_muxer_select="mov_muxer"
2039 mpegts_muxer_select="adts_muxer latm_muxer"
2040 mpegtsraw_demuxer_select="mpegts_demuxer"
2041 mxf_d10_muxer_select="mxf_muxer"
2042 ogg_demuxer_select="golomb"
2043 psp_muxer_select="mov_muxer"
2044 rtp_demuxer_select="sdp_demuxer"
2045 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2046 rtsp_demuxer_select="http_protocol rtpdec"
2047 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2048 sap_demuxer_select="sdp_demuxer"
2049 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2050 sdp_demuxer_select="rtpdec"
2051 smoothstreaming_muxer_select="ismv_muxer"
2052 spdif_muxer_select="aac_parser"
2053 tak_demuxer_select="tak_parser"
2054 tg2_muxer_select="mov_muxer"
2055 tgp_muxer_select="mov_muxer"
2056 vobsub_demuxer_select="mpegps_demuxer"
2057 w64_demuxer_deps="wav_demuxer"
2058 w64_muxer_deps="wav_muxer"
2059
2060 # indevs / outdevs
2061 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2062 alsa_outdev_deps="alsa_asoundlib_h"
2063 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2064 caca_outdev_deps="libcaca"
2065 dshow_indev_deps="IBaseFilter"
2066 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2067 dv1394_indev_deps="dv1394 dv_demuxer"
2068 fbdev_indev_deps="linux_fb_h"
2069 iec61883_indev_deps="libiec61883"
2070 jack_indev_deps="jack_jack_h sem_timedwait"
2071 lavfi_indev_deps="avfilter"
2072 libcdio_indev_deps="libcdio"
2073 libdc1394_indev_deps="libdc1394"
2074 libv4l2_indev_deps="libv4l2"
2075 openal_indev_deps="openal"
2076 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2077 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2078 pulse_indev_deps="libpulse"
2079 sdl_outdev_deps="sdl"
2080 sndio_indev_deps="sndio_h"
2081 sndio_outdev_deps="sndio_h"
2082 v4l_indev_deps="linux_videodev_h"
2083 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2084 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2085 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2086 vfwcap_indev_extralibs="-lavicap32"
2087 x11grab_indev_deps="x11grab"
2088
2089 # protocols
2090 bluray_protocol_deps="libbluray"
2091 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2092 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2093 ffrtmpcrypt_protocol_select="tcp_protocol"
2094 ffrtmphttp_protocol_deps="!librtmp_protocol"
2095 ffrtmphttp_protocol_select="http_protocol"
2096 ftp_protocol_select="tcp_protocol"
2097 gopher_protocol_select="network"
2098 httpproxy_protocol_select="tcp_protocol"
2099 http_protocol_select="tcp_protocol"
2100 https_protocol_select="tls_protocol"
2101 librtmp_protocol_deps="librtmp"
2102 librtmpe_protocol_deps="librtmp"
2103 librtmps_protocol_deps="librtmp"
2104 librtmpt_protocol_deps="librtmp"
2105 librtmpte_protocol_deps="librtmp"
2106 mmsh_protocol_select="http_protocol"
2107 mmst_protocol_select="network"
2108 rtmp_protocol_deps="!librtmp_protocol"
2109 rtmp_protocol_select="tcp_protocol"
2110 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2111 rtmps_protocol_deps="!librtmp_protocol"
2112 rtmps_protocol_select="tls_protocol"
2113 rtmpt_protocol_select="ffrtmphttp_protocol"
2114 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2115 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2116 rtp_protocol_select="udp_protocol"
2117 sctp_protocol_deps="struct_sctp_event_subscribe"
2118 sctp_protocol_select="network"
2119 srtp_protocol_select="rtp_protocol"
2120 tcp_protocol_select="network"
2121 tls_protocol_deps_any="openssl gnutls"
2122 tls_protocol_select="tcp_protocol"
2123 udp_protocol_select="network"
2124
2125 # filters
2126 aconvert_filter_deps="swresample"
2127 amovie_filter_deps="avcodec avformat"
2128 aresample_filter_deps="swresample"
2129 ass_filter_deps="libass"
2130 asyncts_filter_deps="avresample"
2131 atempo_filter_deps="avcodec rdft"
2132 azmq_filter_deps="libzmq"
2133 blackframe_filter_deps="gpl"
2134 boxblur_filter_deps="gpl"
2135 colormatrix_filter_deps="gpl"
2136 cropdetect_filter_deps="gpl"
2137 dctdnoiz_filter_deps="avcodec fft"
2138 delogo_filter_deps="gpl"
2139 deshake_filter_deps="avcodec"
2140 deshake_filter_select="dsputil"
2141 drawtext_filter_deps="libfreetype"
2142 ebur128_filter_deps="gpl"
2143 flite_filter_deps="libflite"
2144 frei0r_filter_deps="frei0r dlopen"
2145 frei0r_filter_extralibs='$ldl'
2146 frei0r_src_filter_deps="frei0r dlopen"
2147 frei0r_src_filter_extralibs='$ldl'
2148 geq_filter_deps="gpl"
2149 histeq_filter_deps="gpl"
2150 hqdn3d_filter_deps="gpl"
2151 hue_filter_deps="gpl"
2152 interlace_filter_deps="gpl"
2153 kerndeint_filter_deps="gpl"
2154 movie_filter_deps="avcodec avformat"
2155 mp_filter_deps="gpl avcodec swscale inline_asm"
2156 mpdecimate_filter_deps="gpl avcodec"
2157 mptestsrc_filter_deps="gpl"
2158 negate_filter_deps="lut_filter"
2159 noise_filter_deps="gpl"
2160 resample_filter_deps="avresample"
2161 ocv_filter_deps="libopencv"
2162 owdenoise_filter_deps="gpl"
2163 pan_filter_deps="swresample"
2164 pp_filter_deps="gpl postproc"
2165 removelogo_filter_deps="avcodec avformat swscale"
2166 scale_filter_deps="swscale"
2167 smartblur_filter_deps="gpl swscale"
2168 showspectrum_filter_deps="avcodec rdft"
2169 stereo3d_filter_deps="gpl"
2170 subtitles_filter_deps="avformat avcodec libass"
2171 super2xsai_filter_deps="gpl"
2172 tinterlace_filter_deps="gpl"
2173 vidstabdetect_filter_deps="libvidstab"
2174 vidstabtransform_filter_deps="libvidstab"
2175 yadif_filter_deps="gpl"
2176 pixfmts_super2xsai_test_deps="super2xsai_filter"
2177 tinterlace_merge_test_deps="tinterlace_filter"
2178 tinterlace_pad_test_deps="tinterlace_filter"
2179 zmq_filter_deps="libzmq"
2180
2181 # libraries
2182 avcodec_deps="avutil"
2183 avdevice_deps="avutil avcodec avformat"
2184 avfilter_deps="avutil"
2185 avformat_deps="avutil avcodec"
2186 avresample_deps="avutil"
2187 postproc_deps="avutil gpl"
2188 swscale_deps="avutil"
2189
2190 # programs
2191 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2192 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2193                null_filter
2194                setpts_filter trim_filter"
2195 ffplay_deps="avcodec avformat swscale swresample sdl"
2196 ffplay_select="rdft crop_filter"
2197 ffprobe_deps="avcodec avformat"
2198 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2199 ffserver_extralibs='$ldl'
2200
2201 # documentation
2202 podpages_deps="perl"
2203 manpages_deps="perl pod2man"
2204 htmlpages_deps="texi2html"
2205 txtpages_deps="makeinfo"
2206 doc_deps_any="manpages htmlpages podpages txtpages"
2207
2208 # default parameters
2209
2210 logfile="config.log"
2211
2212 # installation paths
2213 prefix_default="/usr/local"
2214 bindir_default='${prefix}/bin'
2215 datadir_default='${prefix}/share/ffmpeg'
2216 incdir_default='${prefix}/include'
2217 libdir_default='${prefix}/lib'
2218 mandir_default='${prefix}/share/man'
2219 shlibdir_default="$libdir_default"
2220
2221 # toolchain
2222 ar_default="ar"
2223 cc_default="gcc"
2224 cxx_default="g++"
2225 host_cc_default="gcc"
2226 cp_f="cp -f"
2227 install="install"
2228 ln_s="ln -s -f"
2229 nm_default="nm -g"
2230 objformat="elf"
2231 pkg_config_default=pkg-config
2232 ranlib="ranlib"
2233 strip_default="strip"
2234 yasmexe_default="yasm"
2235
2236 nogas=":"
2237
2238 # machine
2239 arch_default=$(uname -m)
2240 cpu="generic"
2241
2242 # OS
2243 target_os_default=$(tolower $(uname -s))
2244 host_os=$target_os_default
2245
2246 # configurable options
2247 enable $PROGRAM_LIST
2248 enable $DOCUMENT_LIST
2249 enable $(filter_out avresample $LIBRARY_LIST)
2250 enable stripping
2251
2252 enable asm
2253 enable debug
2254 enable doc
2255 enable optimizations
2256 enable runtime_cpudetect
2257 enable safe_bitstream_reader
2258 enable static
2259 enable swscale_alpha
2260
2261 # Enable hwaccels by default.
2262 enable dxva2 vaapi vdpau
2263
2264 # build settings
2265 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2266 FFSERVERLDFLAGS=-Wl,-E
2267 LIBPREF="lib"
2268 LIBSUF=".a"
2269 FULLNAME='$(NAME)$(BUILDSUF)'
2270 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2271 SLIBPREF="lib"
2272 SLIBSUF=".so"
2273 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2274 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2275 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2276 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2277 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2278 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2279
2280 asflags_filter=echo
2281 cflags_filter=echo
2282 ldflags_filter=echo
2283
2284 AS_C='-c'
2285 AS_O='-o $@'
2286 CC_C='-c'
2287 CC_E='-E -o $@'
2288 CC_O='-o $@'
2289 CXX_C='-c'
2290 CXX_O='-o $@'
2291 LD_O='-o $@'
2292 LD_LIB='-l%'
2293 LD_PATH='-L'
2294 HOSTCC_C='-c'
2295 HOSTCC_O='-o $@'
2296 HOSTLD_O='-o $@'
2297
2298 host_cflags='-O3 -g'
2299 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2300 host_libs='-lm'
2301 host_cflags_filter=echo
2302 host_ldflags_filter=echo
2303
2304 target_path='$(CURDIR)'
2305
2306 # since the object filename is not given with the -MM flag, the compiler
2307 # is only able to print the basename, and we must add the path ourselves
2308 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2309 DEPFLAGS='-MM'
2310
2311 # find source path
2312 if test -f configure; then
2313     source_path=.
2314 else
2315     source_path=$(cd $(dirname "$0"); pwd)
2316     echo "$source_path" | grep -q '[[:blank:]]' &&
2317         die "Out of tree builds are impossible with whitespace in source path."
2318     test -e "$source_path/config.h" &&
2319         die "Out of tree builds are impossible with config.h in source dir."
2320 fi
2321
2322 for v in "$@"; do
2323     r=${v#*=}
2324     l=${v%"$r"}
2325     r=$(sh_quote "$r")
2326     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2327 done
2328
2329 find_things(){
2330     thing=$1
2331     pattern=$2
2332     file=$source_path/$3
2333     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2334 }
2335
2336 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2337 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2338 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2339 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2340 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2341 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2342 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2343 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2344 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2345 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2346 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2347
2348 ALL_COMPONENTS="
2349     $BSF_LIST
2350     $DECODER_LIST
2351     $DEMUXER_LIST
2352     $ENCODER_LIST
2353     $FILTER_LIST
2354     $HWACCEL_LIST
2355     $INDEV_LIST
2356     $MUXER_LIST
2357     $OUTDEV_LIST
2358     $PARSER_LIST
2359     $PROTOCOL_LIST
2360 "
2361
2362 for n in $COMPONENT_LIST; do
2363     v=$(toupper ${n%s})_LIST
2364     eval enable \$$v
2365     eval ${n}_if_any="\$$v"
2366 done
2367
2368 enable $ARCH_EXT_LIST
2369
2370 die_unknown(){
2371     echo "Unknown option \"$1\"."
2372     echo "See $0 --help for available options."
2373     exit 1
2374 }
2375
2376 print_3_columns() {
2377     cat | tr ' ' '\n' | sort | pr -r -3 -t
2378 }
2379
2380 show_list() {
2381     suffix=_$1
2382     shift
2383     echo $* | sed s/$suffix//g | print_3_columns
2384     exit 0
2385 }
2386
2387 rand_list(){
2388     IFS=', '
2389     set -- $*
2390     unset IFS
2391     for thing; do
2392         comp=${thing%:*}
2393         prob=${thing#$comp}
2394         prob=${prob#:}
2395         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2396         echo "prob ${prob:-0.5}"
2397         printf '%s\n' $comp
2398     done
2399 }
2400
2401 do_random(){
2402     action=$1
2403     shift
2404     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2405     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2406 }
2407
2408 for opt do
2409     optval="${opt#*=}"
2410     case "$opt" in
2411         --extra-ldflags=*)
2412             add_ldflags $optval
2413         ;;
2414         --extra-libs=*)
2415             add_extralibs $optval
2416         ;;
2417         --disable-devices)
2418             disable $INDEV_LIST $OUTDEV_LIST
2419         ;;
2420         --enable-debug=*)
2421             debuglevel="$optval"
2422         ;;
2423         --disable-programs)
2424             disable $PROGRAM_LIST
2425         ;;
2426         --disable-everything)
2427             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2428         ;;
2429         --disable-all)
2430             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2431             disable $LIBRARY_LIST $PROGRAM_LIST doc
2432         ;;
2433         --enable-random|--disable-random)
2434             action=${opt%%-random}
2435             do_random ${action#--} $COMPONENT_LIST
2436         ;;
2437         --enable-random=*|--disable-random=*)
2438             action=${opt%%-random=*}
2439             do_random ${action#--} $optval
2440         ;;
2441         --enable-*=*|--disable-*=*)
2442             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2443             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2444             eval list=\$$(toupper $thing)_LIST
2445             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2446             list=$(filter "$name" $list)
2447             [ "$list" = "" ] && warn "Option $opt did not match anything"
2448             $action $list
2449         ;;
2450         --enable-?*|--disable-?*)
2451             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2452             if is_in $option $COMPONENT_LIST; then
2453                 test $action = disable && action=unset
2454                 eval $action \$$(toupper ${option%s})_LIST
2455             elif is_in $option $CMDLINE_SELECT; then
2456                 $action $option
2457             else
2458                 die_unknown $opt
2459             fi
2460         ;;
2461         --list-*)
2462             NAME="${opt#--list-}"
2463             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2464             NAME=${NAME%s}
2465             eval show_list $NAME \$$(toupper $NAME)_LIST
2466         ;;
2467         --help|-h) show_help
2468         ;;
2469         --fatal-warnings) enable fatal_warnings
2470         ;;
2471         *)
2472             optname="${opt%%=*}"
2473             optname="${optname#--}"
2474             optname=$(echo "$optname" | sed 's/-/_/g')
2475             if is_in $optname $CMDLINE_SET; then
2476                 eval $optname='$optval'
2477             elif is_in $optname $CMDLINE_APPEND; then
2478                 append $optname "$optval"
2479             else
2480                 die_unknown $opt
2481             fi
2482         ;;
2483     esac
2484 done
2485
2486 disabled logging && logfile=/dev/null
2487
2488 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2489 set >> $logfile
2490
2491 test -n "$cross_prefix" && enable cross_compile
2492
2493 if enabled cross_compile; then
2494     test -n "$arch" && test -n "$target_os" ||
2495         die "Must specify target arch and OS when cross-compiling"
2496 fi
2497
2498 ar_default="${cross_prefix}${ar_default}"
2499 cc_default="${cross_prefix}${cc_default}"
2500 cxx_default="${cross_prefix}${cxx_default}"
2501 nm_default="${cross_prefix}${nm_default}"
2502 pkg_config_default="${cross_prefix}${pkg_config_default}"
2503 ranlib="${cross_prefix}${ranlib}"
2504 strip_default="${cross_prefix}${strip_default}"
2505
2506 sysinclude_default="${sysroot}/usr/include"
2507
2508 test -n "$valgrind" && toolchain="valgrind-memcheck"
2509
2510 case "$toolchain" in
2511     clang-asan)
2512         cc_default="clang"
2513         add_cflags  -fsanitize=address
2514         add_ldflags -fsanitize=address
2515     ;;
2516     clang-tsan)
2517         cc_default="clang"
2518         add_cflags  -fsanitize=thread -pie
2519         add_ldflags -fsanitize=thread -pie
2520     ;;
2521     valgrind-massif)
2522         target_exec_default=${valgrind:-"valgrind"}
2523         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"
2524     ;;
2525     valgrind-memcheck)
2526         target_exec_default=${valgrind:-"valgrind"}
2527         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2528     ;;
2529     msvc)
2530         cc_default="c99wrap cl"
2531         ld_default="c99wrap link"
2532         nm_default="dumpbin -symbols"
2533         ar_default="lib"
2534         target_os_default="win32"
2535     ;;
2536     icl)
2537         cc_default="c99wrap -noconv icl"
2538         ld_default="c99wrap xilink"
2539         nm_default="dumpbin -symbols"
2540         ar_default="xilib"
2541         target_os_default="win32"
2542     ;;
2543     gcov)
2544         add_cflags  -fprofile-arcs -ftest-coverage
2545         add_ldflags -fprofile-arcs -ftest-coverage
2546     ;;
2547     ?*)
2548         die "Unknown toolchain $toolchain"
2549     ;;
2550 esac
2551
2552 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2553 enabled cross_compile || host_cc_default=$cc
2554 set_default host_cc
2555
2556 if ! $pkg_config --version >/dev/null 2>&1; then
2557     warn "$pkg_config not found, library detection may fail."
2558     pkg_config=false
2559 fi
2560
2561 exesuf() {
2562     case $1 in
2563         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2564     esac
2565 }
2566
2567 EXESUF=$(exesuf $target_os)
2568 HOSTEXESUF=$(exesuf $host_os)
2569
2570 # set temporary file name
2571 : ${TMPDIR:=$TEMPDIR}
2572 : ${TMPDIR:=$TMP}
2573 : ${TMPDIR:=/tmp}
2574
2575 if ! check_cmd mktemp -u XXXXXX; then
2576     # simple replacement for missing mktemp
2577     # NOT SAFE FOR GENERAL USE
2578     mktemp(){
2579         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2580     }
2581 fi
2582
2583 tmpfile(){
2584     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2585         (set -C; exec > $tmp) 2>/dev/null ||
2586         die "Unable to create temporary file in $TMPDIR."
2587     append TMPFILES $tmp
2588     eval $1=$tmp
2589 }
2590
2591 trap 'rm -f -- $TMPFILES' EXIT
2592
2593 tmpfile TMPASM .asm
2594 tmpfile TMPC   .c
2595 tmpfile TMPCPP .cpp
2596 tmpfile TMPE   $EXESUF
2597 tmpfile TMPH   .h
2598 tmpfile TMPO   .o
2599 tmpfile TMPS   .S
2600 tmpfile TMPSH  .sh
2601 tmpfile TMPV   .ver
2602
2603 unset -f mktemp
2604
2605 chmod +x $TMPE
2606
2607 # make sure we can execute files in $TMPDIR
2608 cat > $TMPSH 2>> $logfile <<EOF
2609 #! /bin/sh
2610 EOF
2611 chmod +x $TMPSH >> $logfile 2>&1
2612 if ! $TMPSH >> $logfile 2>&1; then
2613     cat <<EOF
2614 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2615 variable to another directory and make sure that it is not mounted noexec.
2616 EOF
2617     die "Sanity test failed."
2618 fi
2619
2620 ccc_flags(){
2621     for flag; do
2622         case $flag in
2623             -std=c99)           echo -c99                       ;;
2624             -mcpu=*)            echo -arch ${flag#*=}           ;;
2625             -mieee)             echo -ieee                      ;;
2626             -O*|-fast)          echo $flag                      ;;
2627             -fno-math-errno)    echo -assume nomath_errno       ;;
2628             -g)                 echo -g3                        ;;
2629             -Wall)              echo -msg_enable level2         ;;
2630             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2631             -Wl,*)              echo $flag                      ;;
2632             -f*|-W*)                                            ;;
2633             *)                  echo $flag                      ;;
2634         esac
2635    done
2636 }
2637
2638 msvc_flags(){
2639     for flag; do
2640         case $flag in
2641             -fomit-frame-pointer) echo -Oy ;;
2642             -g)                   echo -Z7 ;;
2643             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2644                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2645                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2646                                        -wd4554 \
2647                                        -wd4996 -wd4273 ;;
2648             -std=c99)             ;;
2649             -fno-math-errno)      ;;
2650             -fno-common)          ;;
2651             -fno-signed-zeros)    ;;
2652             -fPIC)                ;;
2653             -lz)                  echo zlib.lib ;;
2654             -lavifil32)           echo vfw32.lib ;;
2655             -lavicap32)           echo vfw32.lib user32.lib ;;
2656             -l*)                  echo ${flag#-l}.lib ;;
2657             *)                    echo $flag ;;
2658         esac
2659     done
2660 }
2661
2662 pgi_flags(){
2663     for flag; do
2664         case $flag in
2665             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2666             -fomit-frame-pointer) echo -Mnoframe ;;
2667             -g)                   echo -gopt ;;
2668             *)                    echo $flag ;;
2669         esac
2670     done
2671 }
2672
2673 suncc_flags(){
2674     for flag; do
2675         case $flag in
2676             -march=*|-mcpu=*)
2677                 case "${flag#*=}" in
2678                     native)                   echo -xtarget=native       ;;
2679                     v9|niagara)               echo -xarch=sparc          ;;
2680                     ultrasparc)               echo -xarch=sparcvis       ;;
2681                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2682                     i586|pentium)             echo -xchip=pentium        ;;
2683                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2684                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2685                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2686                     pentium4*)          echo -xtarget=pentium4           ;;
2687                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2688                     *-sse3)             echo -xarch=sse3                 ;;
2689                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2690                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2691                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2692                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2693                     bdver*)                   echo -xarch=avx            ;;
2694                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2695                     k8|opteron|athlon64|athlon-fx)
2696                                               echo -xarch=sse2a          ;;
2697                     athlon*)                  echo -xarch=pentium_proa   ;;
2698                 esac
2699                 ;;
2700             -std=c99)             echo -xc99              ;;
2701             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2702             -fPIC)                echo -KPIC -xcode=pic32 ;;
2703             -W*,*)                echo $flag              ;;
2704             -f*-*|-W*|-mimpure-text)                      ;;
2705             -shared)              echo -G                 ;;
2706             *)                    echo $flag              ;;
2707         esac
2708     done
2709 }
2710
2711 tms470_flags(){
2712     for flag; do
2713         case $flag in
2714             -march=*|-mcpu=*)
2715                 case "${flag#*=}" in
2716                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2717                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2718                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2719                     armv6*|arm11*)          echo -mv=6   ;;
2720                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2721                                             echo -mv=5e  ;;
2722                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2723                 esac
2724                 ;;
2725             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2726             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2727             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2728             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2729             -msoft-float)   echo --float_support=vfplib       ;;
2730             -O[0-3]|-mf=*)  echo $flag                        ;;
2731             -g)             echo -g -mn                       ;;
2732             -pds=*)         echo $flag                        ;;
2733             -D*|-I*)        echo $flag                        ;;
2734             --gcc|--abi=*)  echo $flag                        ;;
2735             -me)            echo $flag                        ;;
2736         esac
2737     done
2738 }
2739
2740 probe_cc(){
2741     pfx=$1
2742     _cc=$2
2743
2744     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2745     unset _ld_o _ldflags _ld_lib _ld_path
2746     unset _depflags _DEPCMD _DEPFLAGS
2747     _flags_filter=echo
2748
2749     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2750         _type=llvm_gcc
2751         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2752         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2753         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2754         _cflags_speed='-O3'
2755         _cflags_size='-Os'
2756     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2757         _type=gcc
2758         gcc_version=$($_cc --version | head -n1)
2759         gcc_basever=$($_cc -dumpversion)
2760         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2761         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2762         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2763         if ! $_cc -dumpversion | grep -q '^2\.'; then
2764             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2765         fi
2766         _cflags_speed='-O3'
2767         _cflags_size='-Os'
2768     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2769         _type=icc
2770         _ident=$($_cc --version | head -n1)
2771         _depflags='-MMD'
2772         _cflags_speed='-O3'
2773         _cflags_size='-Os'
2774         _cflags_noopt='-O1'
2775     elif $_cc -v 2>&1 | grep -q xlc; then
2776         _type=xlc
2777         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2778         _cflags_speed='-O5'
2779         _cflags_size='-O5 -qcompact'
2780     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2781         _type=ccc
2782         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2783         _DEPFLAGS='-M'
2784         _cflags_speed='-fast'
2785         _cflags_size='-O1'
2786         _flags_filter=ccc_flags
2787     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2788         test -d "$sysroot" || die "No valid sysroot specified."
2789         _type=armcc
2790         _ident=$($_cc --vsn | head -n1)
2791         armcc_conf="$PWD/armcc.conf"
2792         $_cc --arm_linux_configure                 \
2793              --arm_linux_config_file="$armcc_conf" \
2794              --configure_sysroot="$sysroot"        \
2795              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2796              die "Error creating armcc configuration file."
2797         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2798         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2799         as_default="${cross_prefix}gcc"
2800         _depflags='-MMD'
2801         _cflags_speed='-O3'
2802         _cflags_size='-Os'
2803     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2804         _type=tms470
2805         _ident=$($_cc -version | head -n1 | tr -s ' ')
2806         _flags='--gcc --abi=eabi -me'
2807         _cc_e='-ppl -fe=$@'
2808         _cc_o='-fe=$@'
2809         _depflags='-ppa -ppd=$(@:.o=.d)'
2810         _cflags_speed='-O3 -mf=5'
2811         _cflags_size='-O3 -mf=2'
2812         _flags_filter=tms470_flags
2813     elif $_cc -v 2>&1 | grep -q clang; then
2814         _type=clang
2815         _ident=$($_cc --version | head -n1)
2816         _depflags='-MMD'
2817         _cflags_speed='-O3'
2818         _cflags_size='-Os'
2819     elif $_cc -V 2>&1 | grep -q Sun; then
2820         _type=suncc
2821         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2822         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2823         _DEPFLAGS='-xM1 -xc99'
2824         _ldflags='-std=c99'
2825         _cflags_speed='-O5'
2826         _cflags_size='-O5 -xspace'
2827         _flags_filter=suncc_flags
2828     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2829         _type=pathscale
2830         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2831         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2832         _cflags_speed='-O2'
2833         _cflags_size='-Os'
2834         _flags_filter='filter_out -Wdisabled-optimization'
2835     elif $_cc -v 2>&1 | grep -q Open64; then
2836         _type=open64
2837         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2838         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2839         _cflags_speed='-O2'
2840         _cflags_size='-Os'
2841         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2842     elif $_cc -V 2>&1 | grep -q Portland; then
2843         _type=pgi
2844         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2845         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2846         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2847         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2848         _cflags_noopt="-O"
2849         _flags_filter=pgi_flags
2850     elif $_cc 2>&1 | grep -q Microsoft; then
2851         _type=msvc
2852         _ident=$($cc 2>&1 | head -n1)
2853         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2854         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2855         _cflags_speed="-O2"
2856         _cflags_size="-O1"
2857         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2858         if $_cc 2>&1 | grep -q Linker; then
2859             _ld_o='-out $@'
2860         else
2861             _ld_o='-Fe$@'
2862         fi
2863         _cc_o='-Fo $@'
2864         _cc_e='-P -Fi $@'
2865         _flags_filter=msvc_flags
2866         _ld_lib='lib%.a'
2867         _ld_path='-libpath:'
2868         _flags='-nologo'
2869         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2870         if [ $pfx = hostcc ]; then
2871             append _cflags -Dsnprintf=_snprintf
2872         fi
2873         disable stripping
2874     elif $_cc 2>&1 | grep -q Intel; then
2875         _type=icl
2876         _ident=$($cc 2>&1 | head -n1)
2877         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2878         # Not only is O3 broken on 13.x+ but it's slower on all previous versions (tested) as well
2879         _cflags_speed="-O2"
2880         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2881         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2882         if $_cc 2>&1 | grep -q Linker; then
2883             _ld_o='-out $@'
2884         else
2885             _ld_o='-Fe$@'
2886         fi
2887         _cc_o='-Fo $@'
2888         _cc_e='-P'
2889         _flags_filter=msvc_flags
2890         _ld_lib='lib%.a'
2891         _ld_path='-libpath:'
2892         # -Qdiag-error to make icl error when presented with certain unknown arguments
2893         _flags='-nologo -Qdiag-error:10157 -Qdiag-error:4044'
2894         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency with msvc which enables it by default
2895         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64 -Qstd=c99 -Qms0 -Qvec- -Qsimd- -GS'
2896         if [ $pfx = hostcc ]; then
2897             append _cflags -Dsnprintf=_snprintf
2898         fi
2899     fi
2900
2901     eval ${pfx}_type=\$_type
2902     eval ${pfx}_ident=\$_ident
2903 }
2904
2905 set_ccvars(){
2906     eval ${1}_C=\${_cc_c-\${${1}_C}}
2907     eval ${1}_E=\${_cc_e-\${${1}_E}}
2908     eval ${1}_O=\${_cc_o-\${${1}_O}}
2909
2910     if [ -n "$_depflags" ]; then
2911         eval ${1}_DEPFLAGS=\$_depflags
2912     else
2913         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2914         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2915         eval DEP${1}FLAGS=\$_flags
2916     fi
2917 }
2918
2919 probe_cc cc "$cc"
2920 cflags_filter=$_flags_filter
2921 cflags_speed=$_cflags_speed
2922 cflags_size=$_cflags_size
2923 cflags_noopt=$_cflags_noopt
2924 add_cflags $_flags $_cflags
2925 cc_ldflags=$_ldflags
2926 set_ccvars CC
2927
2928 probe_cc hostcc "$host_cc"
2929 host_cflags_filter=$_flags_filter
2930 add_host_cflags  $_flags $_cflags
2931 set_ccvars HOSTCC
2932
2933 test -n "$cc_type" && enable $cc_type ||
2934     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2935
2936 : ${as_default:=$cc}
2937 : ${dep_cc_default:=$cc}
2938 : ${ld_default:=$cc}
2939 : ${host_ld_default:=$host_cc}
2940 set_default ar as dep_cc ld host_ld
2941
2942 probe_cc as "$as"
2943 asflags_filter=$_flags_filter
2944 add_asflags $_flags $_cflags
2945 set_ccvars AS
2946
2947 probe_cc ld "$ld"
2948 ldflags_filter=$_flags_filter
2949 add_ldflags $_flags $_ldflags
2950 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2951 LD_O=${_ld_o-$LD_O}
2952 LD_LIB=${_ld_lib-$LD_LIB}
2953 LD_PATH=${_ld_path-$LD_PATH}
2954
2955 probe_cc hostld "$host_ld"
2956 host_ldflags_filter=$_flags_filter
2957 add_host_ldflags $_flags $_ldflags
2958 HOSTLD_O=${_ld_o-$HOSTLD_O}
2959
2960 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2961     probe_cc depcc "$dep_cc"
2962     CCDEP=${_DEPCMD:-$DEPCMD}
2963     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2964     DEPCCFLAGS=$_flags
2965 fi
2966
2967 if $ar 2>&1 | grep -q Microsoft; then
2968     arflags="-nologo"
2969     ar_o='-out:$@'
2970 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2971     arflags="rq"
2972     ar_o='$@'
2973 else
2974     arflags="rc"
2975     ar_o='$@'
2976 fi
2977
2978 add_cflags $extra_cflags
2979 add_cxxflags $extra_cxxflags
2980 add_asflags $extra_cflags
2981
2982 if test -n "$sysroot"; then
2983     case "$cc_type" in
2984         gcc|llvm_gcc|clang)
2985             add_cppflags --sysroot="$sysroot"
2986             add_ldflags --sysroot="$sysroot"
2987         ;;
2988         tms470)
2989             add_cppflags -I"$sysinclude"
2990             add_ldflags  --sysroot="$sysroot"
2991         ;;
2992     esac
2993 fi
2994
2995 if test "$cpu" = host; then
2996     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2997
2998     case "$cc_type" in
2999         gcc|llvm_gcc)
3000             check_native(){
3001                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3002                 sed -n "/cc1.*$1=/{
3003                             s/.*$1=\\([^ ]*\\).*/\\1/
3004                             p
3005                             q
3006                         }" $TMPE
3007             }
3008             cpu=$(check_native -march || check_native -mcpu)
3009         ;;
3010     esac
3011
3012     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
3013 fi
3014
3015 # Deal with common $arch aliases
3016 case "$arch" in
3017     aarch64|arm64)
3018         arch="aarch64"
3019     ;;
3020     arm*|iPad*)
3021         arch="arm"
3022     ;;
3023     mips*|IP*)
3024         arch="mips"
3025     ;;
3026     parisc*|hppa*)
3027         arch="parisc"
3028     ;;
3029     "Power Macintosh"|ppc*|powerpc*)
3030         arch="ppc"
3031     ;;
3032     s390|s390x)
3033         arch="s390"
3034     ;;
3035     sh4|sh)
3036         arch="sh4"
3037     ;;
3038     sun4u|sparc*)
3039         arch="sparc"
3040     ;;
3041     tilegx|tile-gx)
3042         arch="tilegx"
3043     ;;
3044     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3045         arch="x86"
3046     ;;
3047 esac
3048
3049 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3050 enable $arch
3051
3052 # Add processor-specific flags
3053 if enabled aarch64; then
3054
3055     case $cpu in
3056         armv*)
3057             cpuflags="-march=$cpu"
3058         ;;
3059         *)
3060             cpuflags="-mcpu=$cpu"
3061         ;;
3062     esac
3063
3064 elif enabled alpha; then
3065
3066     cpuflags="-mcpu=$cpu"
3067
3068 elif enabled arm; then
3069
3070     check_arm_arch() {
3071         check_cpp_condition stddef.h \
3072             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3073             $cpuflags
3074     }
3075
3076     probe_arm_arch() {
3077         if   check_arm_arch 4;        then echo armv4;
3078         elif check_arm_arch 4T;       then echo armv4t;
3079         elif check_arm_arch 5;        then echo armv5;
3080         elif check_arm_arch 5E;       then echo armv5e;
3081         elif check_arm_arch 5T;       then echo armv5t;
3082         elif check_arm_arch 5TE;      then echo armv5te;
3083         elif check_arm_arch 5TEJ;     then echo armv5te;
3084         elif check_arm_arch 6;        then echo armv6;
3085         elif check_arm_arch 6J;       then echo armv6j;
3086         elif check_arm_arch 6K;       then echo armv6k;
3087         elif check_arm_arch 6Z;       then echo armv6z;
3088         elif check_arm_arch 6ZK;      then echo armv6zk;
3089         elif check_arm_arch 6T2;      then echo armv6t2;
3090         elif check_arm_arch 7;        then echo armv7;
3091         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3092         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3093         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3094         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3095         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3096         fi
3097     }
3098
3099     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3100
3101     case $cpu in
3102         armv*)
3103             cpuflags="-march=$cpu"
3104             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3105         ;;
3106         *)
3107             cpuflags="-mcpu=$cpu"
3108             case $cpu in
3109                 cortex-a*)                               subarch=armv7a  ;;
3110                 cortex-r*)                               subarch=armv7r  ;;
3111                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3112                 arm11*)                                  subarch=armv6   ;;
3113                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3114                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3115                 *)                             subarch=$(probe_arm_arch) ;;
3116             esac
3117         ;;
3118     esac
3119
3120     case "$subarch" in
3121         armv5t*)    enable fast_clz                ;;
3122         armv[6-8]*) enable fast_clz fast_unaligned ;;
3123     esac
3124
3125 elif enabled avr32; then
3126
3127     case $cpu in
3128         ap7[02]0[0-2])
3129             subarch="avr32_ap"
3130             cpuflags="-mpart=$cpu"
3131         ;;
3132         ap)
3133             subarch="avr32_ap"
3134             cpuflags="-march=$cpu"
3135         ;;
3136         uc3[ab]*)
3137             subarch="avr32_uc"
3138             cpuflags="-mcpu=$cpu"
3139         ;;
3140         uc)
3141             subarch="avr32_uc"
3142             cpuflags="-march=$cpu"
3143         ;;
3144     esac
3145
3146 elif enabled bfin; then
3147
3148     cpuflags="-mcpu=$cpu"
3149
3150 elif enabled mips; then
3151
3152     cpuflags="-march=$cpu"
3153
3154     case $cpu in
3155         24kc)
3156             disable mipsfpu
3157             disable mipsdspr1
3158             disable mipsdspr2
3159         ;;
3160         24kf*)
3161             disable mipsdspr1
3162             disable mipsdspr2
3163         ;;
3164         24kec|34kc|1004kc)
3165             disable mipsfpu
3166             disable mipsdspr2
3167         ;;
3168         24kef*|34kf*|1004kf*)
3169             disable mipsdspr2
3170         ;;
3171         74kc)
3172             disable mipsfpu
3173         ;;
3174     esac
3175
3176 elif enabled ppc; then
3177
3178     case $(tolower $cpu) in
3179         601|ppc601|powerpc601)
3180             cpuflags="-mcpu=601"
3181             disable altivec
3182         ;;
3183         603*|ppc603*|powerpc603*)
3184             cpuflags="-mcpu=603"
3185             disable altivec
3186         ;;
3187         604*|ppc604*|powerpc604*)
3188             cpuflags="-mcpu=604"
3189             disable altivec
3190         ;;
3191         g3|75*|ppc75*|powerpc75*)
3192             cpuflags="-mcpu=750"
3193             disable altivec
3194         ;;
3195         g4|745*|ppc745*|powerpc745*)
3196             cpuflags="-mcpu=7450"
3197         ;;
3198         74*|ppc74*|powerpc74*)
3199             cpuflags="-mcpu=7400"
3200         ;;
3201         g5|970|ppc970|powerpc970)
3202             cpuflags="-mcpu=970"
3203         ;;
3204         power[3-7]*)
3205             cpuflags="-mcpu=$cpu"
3206         ;;
3207         cell)
3208             cpuflags="-mcpu=cell"
3209             enable ldbrx
3210         ;;
3211         e500mc)
3212             cpuflags="-mcpu=e500mc"
3213             disable altivec
3214         ;;
3215         e500v2)
3216             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3217             disable altivec
3218         ;;
3219         e500)
3220             cpuflags="-mcpu=8540 -mhard-float"
3221             disable altivec
3222         ;;
3223     esac
3224
3225 elif enabled sparc; then
3226
3227     case $cpu in
3228         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3229             cpuflags="-mcpu=$cpu"
3230             disable vis
3231         ;;
3232         ultrasparc*|niagara[234])
3233             cpuflags="-mcpu=$cpu"
3234         ;;
3235     esac
3236
3237 elif enabled x86; then
3238
3239     case $cpu in
3240         i[345]86|pentium)
3241             cpuflags="-march=$cpu"
3242             disable mmx
3243         ;;
3244         # targets that do NOT support nopl and conditional mov (cmov)
3245         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3246             cpuflags="-march=$cpu"
3247             disable i686
3248         ;;
3249         # targets that do support nopl and conditional mov (cmov)
3250         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3251             cpuflags="-march=$cpu"
3252             enable i686
3253             enable fast_cmov
3254         ;;
3255         # targets that do support conditional mov but on which it's slow
3256         pentium4|pentium4m|prescott|nocona)
3257             cpuflags="-march=$cpu"
3258             enable i686
3259             disable fast_cmov
3260         ;;
3261     esac
3262
3263 fi
3264
3265 if [ "$cpu" != generic ]; then
3266     add_cflags  $cpuflags
3267     add_asflags $cpuflags
3268 fi
3269
3270 # compiler sanity check
3271 check_exec <<EOF
3272 int main(void){ return 0; }
3273 EOF
3274 if test "$?" != 0; then
3275     echo "$cc is unable to create an executable file."
3276     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3277         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3278         echo "Only do this if you know what cross compiling means."
3279     fi
3280     die "C compiler test failed."
3281 fi
3282
3283 add_cppflags -D_ISOC99_SOURCE
3284 add_cxxflags -D__STDC_CONSTANT_MACROS
3285 check_cflags -std=c99
3286 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3287 #include <stdlib.h>
3288 EOF
3289 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3290 #include <stdlib.h>
3291 EOF
3292
3293 check_host_cflags -std=c99
3294 check_host_cflags -Wall
3295
3296 check_64bit(){
3297     arch32=$1
3298     arch64=$2
3299     expr=$3
3300     check_code cc "" "int test[2*($expr) - 1]" &&
3301         subarch=$arch64 || subarch=$arch32
3302 }
3303
3304 case "$arch" in
3305     aarch64|alpha|ia64)
3306         spic=$shared
3307     ;;
3308     mips)
3309         check_64bit mips mips64 '_MIPS_SIM > 1'
3310         spic=$shared
3311     ;;
3312     parisc)
3313         check_64bit parisc parisc64 'sizeof(void *) > 4'
3314         spic=$shared
3315     ;;
3316     ppc)
3317         check_64bit ppc ppc64 'sizeof(void *) > 4'
3318         spic=$shared
3319     ;;
3320     sparc)
3321         check_64bit sparc sparc64 'sizeof(void *) > 4'
3322         spic=$shared
3323     ;;
3324     x86)
3325         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3326         if test "$subarch" = "x86_64"; then
3327             spic=$shared
3328         fi
3329     ;;
3330     ppc)
3331         check_cc <<EOF && subarch="ppc64"
3332         int test[(int)sizeof(char*) - 7];
3333 EOF
3334     ;;
3335 esac
3336
3337 enable $subarch
3338 enabled spic && enable_weak pic
3339
3340 # OS specific
3341 case $target_os in
3342     haiku)
3343         prefix_default="/boot/common"
3344         network_extralibs="-lnetwork"
3345         host_libs=
3346         ;;
3347     sunos)
3348         FFSERVERLDFLAGS=""
3349         SHFLAGS='-shared -Wl,-h,$$(@F)'
3350         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3351         network_extralibs="-lsocket -lnsl"
3352         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3353         # When using suncc to build, the Solaris linker will mark
3354         # an executable with each instruction set encountered by
3355         # the Solaris assembler.  As our libraries contain their own
3356         # guards for processor-specific code, instead suppress
3357         # generation of the HWCAPS ELF section on Solaris x86 only.
3358         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3359         nm_default='nm -P -g'
3360         ;;
3361     netbsd)
3362         disable symver
3363         oss_indev_extralibs="-lossaudio"
3364         oss_outdev_extralibs="-lossaudio"
3365         enabled gcc || check_ldflags -Wl,-zmuldefs
3366         ;;
3367     openbsd|bitrig)
3368         disable symver
3369         SHFLAGS='-shared'
3370         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3371         SLIB_INSTALL_LINKS=
3372         oss_indev_extralibs="-lossaudio"
3373         oss_outdev_extralibs="-lossaudio"
3374         ;;
3375     dragonfly)
3376         disable symver
3377         ;;
3378     freebsd)
3379         ;;
3380     bsd/os)
3381         add_extralibs -lpoll -lgnugetopt
3382         strip="strip -d"
3383         ;;
3384     darwin)
3385         gas="gas-preprocessor.pl $cc"
3386         enabled ppc && add_asflags -force_cpusubtype_ALL
3387         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3388         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3389         strip="${strip} -x"
3390         add_ldflags -Wl,-dynamic,-search_paths_first
3391         SLIBSUF=".dylib"
3392         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3393         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3394         FFSERVERLDFLAGS=-Wl,-bind_at_load
3395         objformat="macho"
3396         enabled x86_64 && objformat="macho64"
3397         enabled_any pic shared ||
3398             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3399         ;;
3400     mingw32*)
3401         if test $target_os = "mingw32ce"; then
3402             disable network
3403         else
3404             target_os=mingw32
3405         fi
3406         LIBTARGET=i386
3407         if enabled x86_64; then
3408             LIBTARGET="i386:x86-64"
3409         elif enabled arm; then
3410             LIBTARGET=arm-wince
3411         fi
3412         check_ldflags -Wl,--nxcompat
3413         check_ldflags -Wl,--dynamicbase
3414         shlibdir_default="$bindir_default"
3415         SLIBPREF=""
3416         SLIBSUF=".dll"
3417         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3418         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3419         dlltool="${cross_prefix}dlltool"
3420         if check_cmd lib.exe -list; then
3421             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3422             if enabled x86_64; then
3423                 LIBTARGET=x64
3424             fi
3425         elif check_cmd $dlltool --version; then
3426             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3427         fi
3428         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3429         SLIB_INSTALL_LINKS=
3430         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3431         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3432         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3433         objformat="win32"
3434         ranlib=:
3435         enable dos_paths
3436         disable pic
3437         ;;
3438     win32|win64)
3439         if enabled shared; then
3440             # Link to the import library instead of the normal static library
3441             # for shared libs.
3442             LD_LIB='%.lib'
3443             # Cannot build shared and static libraries at the same time with
3444             # MSVC.
3445             disable static
3446         fi
3447         shlibdir_default="$bindir_default"
3448         SLIBPREF=""
3449         SLIBSUF=".dll"
3450         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3451         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3452         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3453         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3454         SLIB_INSTALL_LINKS=
3455         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3456         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3457         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3458         objformat="win32"
3459         ranlib=:
3460         enable dos_paths
3461         disable pic
3462         ;;
3463     cygwin*)
3464         target_os=cygwin
3465         shlibdir_default="$bindir_default"
3466         SLIBPREF="cyg"
3467         SLIBSUF=".dll"
3468         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3469         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3470         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3471         SLIB_INSTALL_LINKS=
3472         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3473         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3474         objformat="win32"
3475         enable dos_paths
3476         disable pic
3477         ;;
3478     *-dos|freedos|opendos)
3479         network_extralibs="-lsocket"
3480         objformat="coff"
3481         enable dos_paths
3482         add_cppflags -U__STRICT_ANSI__
3483         ;;
3484     linux)
3485         enable dv1394
3486         ;;
3487     irix*)
3488         target_os=irix
3489         ranlib="echo ignoring ranlib"
3490         ;;
3491     os/2*)
3492         strip="lxlite -CS"
3493         ln_s="cp -f"
3494         objformat="aout"
3495         add_cppflags -D_GNU_SOURCE
3496         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3497         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3498         FFSERVERLDFLAGS=""
3499         LIBSUF="_s.a"
3500         SLIBPREF=""
3501         SLIBSUF=".dll"
3502         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3503         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3504         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3505             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3506             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3507             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3508             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3509             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3510         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3511             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3512         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3513         enable dos_paths
3514         enable_weak os2threads
3515         ;;
3516     gnu/kfreebsd)
3517         add_cppflags -D_BSD_SOURCE
3518         ;;
3519     gnu)
3520         ;;
3521     qnx)
3522         add_cppflags -D_QNX_SOURCE
3523         network_extralibs="-lsocket"
3524         ;;
3525     symbian)
3526         SLIBSUF=".dll"
3527         enable dos_paths
3528         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3529         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3530         add_ldflags -Wl,--target1-abs,--no-undefined \
3531                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3532                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3533         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3534                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3535                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3536         ;;
3537     osf1)
3538         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3539         FFSERVERLDFLAGS=
3540         ;;
3541     minix)
3542         ;;
3543     plan9)
3544         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3545                      -D_REENTRANT_SOURCE        \
3546                      -D_RESEARCH_SOURCE         \
3547                      -DFD_SETSIZE=96            \
3548                      -DHAVE_SOCK_OPTS
3549         add_compat strtod.o strtod=avpriv_strtod
3550         network_extralibs='-lbsd'
3551         exeobjs=compat/plan9/main.o
3552         disable ffserver
3553         cp_f='cp'
3554         ;;
3555     none)
3556         ;;
3557     *)
3558         die "Unknown OS '$target_os'."
3559         ;;
3560 esac
3561
3562 # determine libc flavour
3563
3564 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3565 if check_cpp_condition features.h "defined __UCLIBC__"; then
3566     libc_type=uclibc
3567     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3568 elif check_cpp_condition features.h "defined __GLIBC__"; then
3569     libc_type=glibc
3570     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3571 # MinGW headers can be installed on Cygwin, so check for newlib first.
3572 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3573     libc_type=newlib
3574     add_cppflags -U__STRICT_ANSI__
3575 elif check_header _mingw.h; then
3576     libc_type=mingw
3577     check_cpp_condition _mingw.h \
3578         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3579             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3580         die "ERROR: MinGW runtime version must be >= 3.15."
3581     add_cppflags -U__STRICT_ANSI__
3582     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3583             __MINGW64_VERSION_MAJOR < 3"; then
3584         add_compat msvcrt/snprintf.o
3585         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3586     fi
3587 elif check_func_headers stdlib.h _get_doserrno; then
3588     libc_type=msvcrt
3589     add_compat strtod.o strtod=avpriv_strtod
3590     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3591                                  _snprintf=avpriv_snprintf  \
3592                                  vsnprintf=avpriv_vsnprintf
3593     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3594     # 0x601 by default unless something else is set by the user.
3595     # This can easily lead to us detecting functions only present
3596     # in such new versions and producing binaries requiring windows 7.0.
3597     # Therefore explicitly set the default to XP unless the user has
3598     # set something else on the command line.
3599     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3600 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3601     libc_type=klibc
3602 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3603     libc_type=bionic
3604     add_compat strtod.o strtod=avpriv_strtod
3605 fi
3606
3607 test -n "$libc_type" && enable $libc_type
3608
3609 # hacks for compiler/libc/os combinations
3610
3611 if enabled_all tms470 glibc; then
3612     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3613     add_cppflags -D__USER_LABEL_PREFIX__=
3614     add_cppflags -D__builtin_memset=memset
3615     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3616     add_cflags   -pds=48    # incompatible redefinition of macro
3617 fi
3618
3619 if enabled_all ccc glibc; then
3620     add_ldflags -Wl,-z,now  # calls to libots crash without this
3621 fi
3622
3623 esc(){
3624     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3625 }
3626
3627 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3628
3629 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3630
3631 set_default $PATHS_LIST
3632 set_default nm
3633
3634 # we need to build at least one lib type
3635 if ! enabled_any static shared; then
3636     cat <<EOF
3637 At least one library type must be built.
3638 Specify --enable-static to build the static libraries or --enable-shared to
3639 build the shared libraries as well. To only build the shared libraries specify
3640 --disable-static in addition to --enable-shared.
3641 EOF
3642     exit 1;
3643 fi
3644
3645 die_license_disabled() {
3646     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3647 }
3648
3649 die_license_disabled_gpl() {
3650     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3651 }
3652
3653 die_license_disabled gpl libcdio
3654 die_license_disabled gpl libutvideo
3655 die_license_disabled gpl libvidstab
3656 die_license_disabled gpl libx264
3657 die_license_disabled gpl libxavs
3658 die_license_disabled gpl libxvid
3659 die_license_disabled gpl x11grab
3660
3661 die_license_disabled nonfree libaacplus
3662 die_license_disabled nonfree libfaac
3663 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3664 enabled gpl && die_license_disabled_gpl nonfree openssl
3665
3666 die_license_disabled version3 libopencore_amrnb
3667 die_license_disabled version3 libopencore_amrwb
3668 die_license_disabled version3 libvo_aacenc
3669 die_license_disabled version3 libvo_amrwbenc
3670
3671 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3672
3673 disabled optimizations || check_cflags -fomit-frame-pointer
3674
3675 enable_weak_pic() {
3676     disabled pic && return
3677     enable pic
3678     add_cppflags -DPIC
3679     add_cflags   -fPIC
3680     add_asflags  -fPIC
3681 }
3682
3683 enabled pic && enable_weak_pic
3684
3685 check_cc <<EOF || die "Symbol mangling check failed."
3686 int ff_extern;
3687 EOF
3688 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3689 extern_prefix=${sym%%ff_extern*}
3690
3691 check_cc <<EOF && enable_weak inline_asm
3692 void foo(void) { __asm__ volatile ("" ::); }
3693 EOF
3694
3695 _restrict=
3696 for restrict_keyword in restrict __restrict__ __restrict; do
3697     check_cc <<EOF && _restrict=$restrict_keyword && break
3698 void foo(char * $restrict_keyword p);
3699 EOF
3700 done
3701
3702 check_cc <<EOF && enable attribute_packed
3703 struct { int x; } __attribute__((packed)) x;
3704 EOF
3705
3706 check_cc <<EOF && enable attribute_may_alias
3707 union { int x; } __attribute__((may_alias)) x;
3708 EOF
3709
3710 check_cc <<EOF || die "endian test failed"
3711 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3712 EOF
3713 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3714
3715 if enabled alpha; then
3716
3717     check_cflags -mieee
3718
3719 elif enabled arm; then
3720
3721     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3722 float func(float a, float b){ return a+b; }
3723 EOF
3724
3725     enabled thumb && check_cflags -mthumb || check_cflags -marm
3726     nogas=die
3727
3728     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3729         enable vfp_args
3730     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3731         case "${cross_prefix:-$cc}" in
3732             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3733             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3734 __asm__ (".eabi_attribute 28, 1");
3735 int main(void) { return 0; }
3736 EOF
3737         esac
3738         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3739     fi
3740
3741     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3742     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3743     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3744     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3745     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3746     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3747
3748     [ $target_os = linux ] ||
3749         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3750             $ARCH_EXT_LIST_ARM
3751
3752     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3753     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3754
3755     enabled_all armv6t2 shared !pic && enable_weak_pic
3756
3757 elif enabled mips; then
3758
3759     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3760     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3761      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3762     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3763      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3764     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3765      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3766     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3767      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3768
3769 elif enabled parisc; then
3770
3771     if enabled gcc; then
3772         case $($cc -dumpversion) in
3773             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3774         esac
3775     fi
3776
3777 elif enabled ppc; then
3778
3779     enable local_aligned_8 local_aligned_16
3780
3781     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3782     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3783     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3784     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3785
3786     # AltiVec flags: The FSF version of GCC differs from the Apple version
3787     if enabled altivec; then
3788         nogas=warn
3789         check_cflags -maltivec -mabi=altivec &&
3790         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3791         check_cflags -faltivec
3792
3793         # check if our compiler supports Motorola AltiVec C API
3794         check_cc <<EOF || disable altivec
3795 $inc_altivec_h
3796 int main(void) {
3797     vector signed int v1 = (vector signed int) { 0 };
3798     vector signed int v2 = (vector signed int) { 1 };
3799     v1 = vec_add(v1, v2);
3800     return 0;
3801 }
3802 EOF
3803
3804         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3805     fi
3806
3807 elif enabled sparc; then
3808
3809     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3810
3811 elif enabled x86; then
3812
3813     check_builtin rdtsc    intrin.h   "__rdtsc()"
3814     check_builtin mm_empty mmintrin.h "_mm_empty()"
3815
3816     enable local_aligned_8 local_aligned_16
3817
3818     # check whether EBP is available on x86
3819     # As 'i' is stored on the stack, this program will crash
3820     # if the base pointer is used to access it because the
3821     # base pointer is cleared in the inline assembly code.
3822     check_exec_crash <<EOF && enable ebp_available
3823 volatile int i=0;
3824 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3825 return i;
3826 EOF
3827
3828     # check whether EBX is available on x86
3829     check_inline_asm ebx_available '""::"b"(0)' &&
3830         check_inline_asm ebx_available '"":::"%ebx"'
3831
3832     # check whether xmm clobbers are supported
3833     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3834
3835     # check whether binutils is new enough to compile SSSE3/MMXEXT
3836     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3837     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3838
3839     if ! disabled_any asm mmx yasm; then
3840         if check_cmd $yasmexe --version; then
3841             enabled x86_64 && yasm_extra="-m amd64"
3842             yasm_debug="-g dwarf2"
3843         elif check_cmd nasm -v; then
3844             yasmexe=nasm
3845             yasm_debug="-g -F dwarf"
3846             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3847         fi
3848
3849         YASMFLAGS="-f $objformat $yasm_extra"
3850         enabled pic               && append YASMFLAGS "-DPIC"
3851         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3852         case "$objformat" in
3853             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3854         esac
3855
3856         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3857             die "yasm not found, use --disable-yasm for a crippled build"
3858         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3859         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3860         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3861     fi
3862
3863     case "$cpu" in
3864         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3865             disable fast_clz
3866         ;;
3867     esac
3868
3869 fi
3870
3871 if enabled asm; then
3872     as=${gas:=$as}
3873     check_as <<EOF && enable gnu_as || \
3874         $nogas "GNU assembler not found, install gas-preprocessor"
3875 .macro m n
3876 \n: .int 0
3877 .endm
3878 m x
3879 EOF
3880 fi
3881
3882 check_ldflags -Wl,--as-needed
3883
3884 if check_func dlopen; then
3885     ldl=
3886 elif check_func dlopen -ldl; then
3887     ldl=-ldl
3888 fi
3889
3890 if ! disabled network; then
3891     check_type "sys/types.h sys/socket.h" socklen_t
3892     check_type netdb.h "struct addrinfo"
3893     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3894     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3895     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3896     check_type netinet/in.h "struct sockaddr_in6"
3897     check_type poll.h "struct pollfd"
3898     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3899     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3900     check_type netinet/sctp.h "struct sctp_event_subscribe"
3901     check_func getaddrinfo $network_extralibs
3902     check_func getservbyport $network_extralibs
3903     # Prefer arpa/inet.h over winsock2
3904     if check_header arpa/inet.h ; then
3905         check_func closesocket
3906     elif check_header winsock2.h ; then
3907         check_func_headers winsock2.h closesocket -lws2 &&
3908             network_extralibs="-lws2" ||
3909         { check_func_headers winsock2.h closesocket -lws2_32 &&
3910             network_extralibs="-lws2_32"; }
3911         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3912         check_type ws2tcpip.h socklen_t
3913         check_type ws2tcpip.h "struct addrinfo"
3914         check_type ws2tcpip.h "struct group_source_req"
3915         check_type ws2tcpip.h "struct ip_mreq_source"
3916         check_type ws2tcpip.h "struct ipv6_mreq"
3917         check_type winsock2.h "struct pollfd"
3918         check_type ws2tcpip.h "struct sockaddr_in6"
3919         check_type ws2tcpip.h "struct sockaddr_storage"
3920         check_struct winsock2.h "struct sockaddr" sa_len
3921     else
3922         disable network
3923     fi
3924 fi
3925
3926 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3927 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3928
3929 check_func  access
3930 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3931 check_func  fcntl
3932 check_func  fork
3933 check_func_headers stdlib.h getenv
3934 check_func  gethrtime
3935 check_func  getopt
3936 check_func  getrusage
3937 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3938 check_func  gettimeofday
3939 check_func  inet_aton $network_extralibs
3940 check_func  isatty
3941 check_func  localtime_r
3942 check_func  ${malloc_prefix}memalign            && enable memalign
3943 check_func  mkstemp
3944 check_func  mmap
3945 check_func  mprotect
3946 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3947 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3948 check_func  setrlimit
3949 check_func  strerror_r
3950 check_func  sched_getaffinity
3951 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3952 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3953 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3954 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3955 check_func  sysconf
3956 check_func  sysctl
3957 check_func  usleep
3958 check_func_headers conio.h kbhit
3959 check_func_headers windows.h PeekNamedPipe
3960 check_func_headers io.h setmode
3961 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3962 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3963 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3964 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3965 check_func_headers windows.h GetProcessAffinityMask
3966 check_func_headers windows.h GetProcessTimes
3967 check_func_headers windows.h GetSystemTimeAsFileTime
3968 check_func_headers windows.h MapViewOfFile
3969 check_func_headers windows.h SetConsoleTextAttribute
3970 check_func_headers windows.h Sleep
3971 check_func_headers windows.h VirtualAlloc
3972 check_func_headers glob.h glob
3973
3974 check_header cl/cl.h
3975 check_header direct.h
3976 check_header dlfcn.h
3977 check_header dxva.h
3978 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3979 check_header io.h
3980 check_header libcrystalhd/libcrystalhd_if.h
3981 check_header malloc.h
3982 check_header poll.h
3983 check_header sys/mman.h
3984 check_header sys/param.h
3985 check_header sys/resource.h
3986 check_header sys/select.h
3987 check_header sys/time.h
3988 check_header termios.h
3989 check_header unistd.h
3990 check_header vdpau/vdpau.h
3991 check_header vdpau/vdpau_x11.h
3992 check_header VideoDecodeAcceleration/VDADecoder.h
3993 check_header windows.h
3994 check_header X11/extensions/XvMClib.h
3995 check_header asm/types.h
3996
3997 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3998 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3999
4000 if ! disabled w32threads && ! enabled pthreads; then
4001     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4002 fi
4003
4004 # check for some common methods of building with pthread support
4005 # do this before the optional library checks as some of them require pthreads
4006 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4007     enable pthreads
4008     if check_func pthread_create; then
4009         :
4010     elif check_func pthread_create -pthread; then
4011         add_cflags -pthread
4012         add_extralibs -pthread
4013     elif check_func pthread_create -pthreads; then
4014         add_cflags -pthreads
4015         add_extralibs -pthreads
4016     elif check_func pthread_create -lpthreadGC2; then
4017         add_extralibs -lpthreadGC2
4018     elif ! check_lib pthread.h pthread_create -lpthread; then
4019         disable pthreads
4020     fi
4021 fi
4022
4023 for thread in $THREADS_LIST; do
4024     if enabled $thread; then
4025         test -n "$thread_type" &&
4026             die "ERROR: Only one thread type must be selected." ||
4027             thread_type="$thread"
4028     fi
4029 done
4030
4031 if enabled pthreads; then
4032   check_func pthread_cancel
4033 fi
4034
4035 enabled sync_val_compare_and_swap && enable atomics_gcc
4036 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
4037 enabled MemoryBarrier && enable atomics_win32
4038
4039 check_lib math.h sin -lm && LIBM="-lm"
4040 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4041
4042 atan2f_args=2
4043 ldexpf_args=2
4044 powf_args=2
4045
4046 for func in $MATH_FUNCS; do
4047     eval check_mathfunc $func \${${func}_args:-1}
4048 done
4049
4050 # these are off by default, so fail if requested and not available
4051 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
4052                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4053                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4054 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4055 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4056 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4057 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4058 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4059 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
4060 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
4061 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
4062                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4063                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4064 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
4065 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4066 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4067 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"
4068 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
4069 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4070 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4071                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4072                         done || die "ERROR: libgsm not found"; }
4073 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4074 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4075 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4076 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4077 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4078 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4079 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4080 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4081                          check_lib openjpeg.h opj_version -lopenjpeg ||
4082                          die "ERROR: libopenjpeg not found"; }
4083 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4084 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4085 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4086 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4087 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4088 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4089 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4090 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4091 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4092     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4093     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4094 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4095 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4096                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4097                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4098 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4099 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4100 enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4101 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4102 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4103 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4104 enabled libvpx     && {
4105     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4106                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4107     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 ||
4108                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4109     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4110     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4111 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4112                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4113                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4114 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4115 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4116 enabled libzmq     && require_pkg_config libzmq zmq.h zmq_ctx_new
4117 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4118                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4119                         die "ERROR: openal not found"; } &&
4120                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4121                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4122 enabled opencl     && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4123                         check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4124                         die "ERROR: opencl not found"; } &&
4125                       { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4126                         check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4127                         die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4128 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4129                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4130                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4131                         die "ERROR: openssl not found"; }
4132
4133 if enabled gnutls; then
4134     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4135     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4136 fi
4137
4138 # libdc1394 check
4139 if enabled libdc1394; then
4140     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4141         enable libdc1394_2; } ||
4142     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4143         enable libdc1394_1; } ||
4144     die "ERROR: No version of libdc1394 found "
4145 fi
4146
4147 SDL_CONFIG="${cross_prefix}sdl-config"
4148 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4149     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4150     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4151     enable sdl
4152 else
4153   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4154     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4155     sdl_libs=$("${SDL_CONFIG}" --libs)
4156     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4157     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4158     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4159     enable sdl
4160   fi
4161 fi
4162 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4163
4164 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4165 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4166 perl --version > /dev/null 2>&1 && enable perl || disable perl
4167 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4168 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4169
4170 check_header linux/fb.h
4171 check_header linux/videodev.h
4172 check_header linux/videodev2.h
4173 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4174
4175 check_header sys/videoio.h
4176
4177 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4178 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4179 # w32api 3.12 had it defined wrong
4180 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4181
4182 check_type "dshow.h" IBaseFilter
4183
4184 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4185 { check_header dev/bktr/ioctl_meteor.h &&
4186   check_header dev/bktr/ioctl_bt848.h; } ||
4187 { check_header machine/ioctl_meteor.h &&
4188   check_header machine/ioctl_bt848.h; } ||
4189 { check_header dev/video/meteor/ioctl_meteor.h &&
4190   check_header dev/video/bktr/ioctl_bt848.h; } ||
4191 check_header dev/ic/bt8xx.h
4192
4193 check_header sndio.h
4194 if check_struct sys/soundcard.h audio_buf_info bytes; then
4195     enable_safe sys/soundcard.h
4196 else
4197     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4198     #include <sys/soundcard.h>
4199     audio_buf_info abc;
4200 EOF
4201 fi
4202 check_header soundcard.h
4203
4204 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4205
4206 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4207     check_func jack_port_get_latency_range -ljack
4208
4209 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4210
4211 if enabled libcdio; then
4212     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4213 fi
4214
4215 enabled x11grab                                           &&
4216 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4217 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4218 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4219
4220 enabled vaapi &&
4221     check_lib va/va.h vaInitialize -lva ||
4222     disable vaapi
4223
4224 enabled vdpau &&
4225     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4226     disable vdpau
4227
4228 # Funny iconv installations are not unusual, so check it after all flags have been set
4229 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4230
4231 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4232
4233 # add some useful compiler flags if supported
4234 check_cflags -Wdeclaration-after-statement
4235 check_cflags -Wall
4236 check_cflags -Wno-parentheses
4237 check_cflags -Wno-switch
4238 check_cflags -Wno-format-zero-length
4239 check_cflags -Wdisabled-optimization
4240 check_cflags -Wpointer-arith
4241 check_cflags -Wredundant-decls
4242 check_cflags -Wno-pointer-sign
4243 check_cflags -Wwrite-strings
4244 check_cflags -Wtype-limits
4245 check_cflags -Wundef
4246 check_cflags -Wmissing-prototypes
4247 check_cflags -Wno-pointer-to-int-cast
4248 check_cflags -Wstrict-prototypes
4249 enabled extra_warnings && check_cflags -Winline
4250
4251 # add some linker flags
4252 check_ldflags -Wl,--warn-common
4253 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4254 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4255
4256 enabled xmm_clobber_test &&
4257     check_ldflags -Wl,--wrap,avcodec_open2              \
4258                   -Wl,--wrap,avcodec_decode_audio4      \
4259                   -Wl,--wrap,avcodec_decode_video2      \
4260                   -Wl,--wrap,avcodec_decode_subtitle2   \
4261                   -Wl,--wrap,avcodec_encode_audio2      \
4262                   -Wl,--wrap,avcodec_encode_video       \
4263                   -Wl,--wrap,avcodec_encode_subtitle    \
4264                   -Wl,--wrap,sws_scale ||
4265     disable xmm_clobber_test
4266
4267 echo "X{};" > $TMPV
4268 if test_ldflags -Wl,--version-script,$TMPV; then
4269     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4270     check_cc <<EOF && enable symver_asm_label
4271 void ff_foo(void) __asm__ ("av_foo@VERSION");
4272 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4273 EOF
4274     check_cc <<EOF && enable symver_gnu_asm
4275 __asm__(".symver ff_foo,av_foo@VERSION");
4276 void ff_foo(void) {}
4277 EOF
4278 fi
4279
4280 if [ -z "$optflags" ]; then
4281     if enabled small; then
4282         optflags=$cflags_size
4283     elif enabled optimizations; then
4284         optflags=$cflags_speed
4285     else
4286         optflags=$cflags_noopt
4287     fi
4288 fi
4289
4290 check_optflags(){
4291     check_cflags "$@"
4292     enabled lto && check_ldflags "$@"
4293 }
4294
4295
4296 if enabled lto; then
4297     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4298     check_cflags  -flto
4299     check_ldflags -flto $cpuflags
4300 fi
4301
4302 check_optflags $optflags
4303 check_optflags -fno-math-errno
4304 check_optflags -fno-signed-zeros
4305
4306 enabled ftrapv && check_cflags -ftrapv
4307
4308 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4309 int x;
4310 EOF
4311
4312
4313 if enabled icc; then
4314     # Just warnings, no remarks
4315     check_cflags -w1
4316     # -wd: Disable following warnings
4317     # 144, 167, 556: -Wno-pointer-sign
4318     # 188: enumerated type mixed with another type
4319     # 1292: attribute "foo" ignored
4320     # 1419: external declaration in primary source file
4321     # 10006: ignoring unknown option -fno-signed-zeros
4322     # 10148: ignoring unknown option -Wno-parentheses
4323     # 10156: ignoring option '-W'; no argument required
4324     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4325     # 11030: Warning unknown option --as-needed
4326     # 10156: ignoring option '-export'; no argument required
4327     check_ldflags -wd10156,11030
4328     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4329     enable ebp_available
4330     if enabled x86_32; then
4331         icc_version=$($cc -dumpversion)
4332         test ${icc_version%%.*} -ge 11 &&
4333             check_cflags -falign-stack=maintain-16-byte ||
4334             disable aligned_stack
4335     fi
4336 elif enabled ccc; then
4337     # disable some annoying warnings
4338     add_cflags -msg_disable bitnotint
4339     add_cflags -msg_disable mixfuncvoid
4340     add_cflags -msg_disable nonstandcast
4341     add_cflags -msg_disable unsupieee
4342 elif enabled gcc; then
4343     check_optflags -fno-tree-vectorize
4344     check_cflags -Werror=implicit-function-declaration
4345     check_cflags -Werror=missing-prototypes
4346     check_cflags -Werror=return-type
4347     check_cflags -Werror=vla
4348 elif enabled llvm_gcc; then
4349     check_cflags -mllvm -stack-alignment=16
4350 elif enabled clang; then
4351     check_cflags -mllvm -stack-alignment=16
4352     check_cflags -Qunused-arguments
4353     check_cflags -Werror=implicit-function-declaration
4354     check_cflags -Werror=missing-prototypes
4355     check_cflags -Werror=return-type
4356 elif enabled armcc; then
4357     # 2523: use of inline assembler is deprecated
4358     add_cflags -W${armcc_opt},--diag_suppress=2523
4359     add_cflags -W${armcc_opt},--diag_suppress=1207
4360     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4361     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4362     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4363     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4364 elif enabled tms470; then
4365     add_cflags -pds=824 -pds=837
4366 elif enabled pathscale; then
4367     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4368 elif enabled msvc; then
4369     enabled x86_32 && disable aligned_stack
4370 elif enabled icl; then
4371     enabled x86_32 && disable aligned_stack
4372     check_cflags -W1 # Just warnings, no remark spam
4373     # basically -fstrict-aliasing for icl that doesn't work (correctly) on 13.x+
4374     check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4375     # icl will pass the inline asm tests but inline asm is currently not supported (build will fail)
4376     disable inline_asm
4377 fi
4378
4379 case $target_os in
4380     osf1)
4381         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4382     ;;
4383     plan9)
4384         add_cppflags -Dmain=plan9_main
4385     ;;
4386 esac
4387
4388 enable frame_thread_encoder
4389 enabled_any $THREADS_LIST      && enable threads
4390 enabled_any $ATOMICS_LIST      && enable atomics_native
4391
4392 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4393
4394 check_deps $CONFIG_LIST       \
4395            $CONFIG_EXTRA      \
4396            $HAVE_LIST         \
4397            $ALL_COMPONENTS    \
4398
4399
4400 if test $target_os = "haiku"; then
4401     disable memalign
4402     disable posix_memalign
4403 fi
4404
4405 ! enabled_any memalign posix_memalign aligned_malloc &&
4406     enabled_any $need_memalign && enable memalign_hack
4407
4408 # add_dep lib dep
4409 # -> enable ${lib}_deps_${dep}
4410 # -> add $dep to ${lib}_deps only once
4411 add_dep() {
4412     lib=$1
4413     dep=$2
4414     enabled "${lib}_deps_${dep}" && return 0
4415     enable  "${lib}_deps_${dep}"
4416     prepend "${lib}_deps" $dep
4417 }
4418
4419 # merge deps lib components
4420 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4421 merge_deps() {
4422     lib=$1
4423     shift
4424     for comp in $*; do
4425         enabled $comp || continue
4426         eval "dep=\"\$${comp}_deps\""
4427         for d in $dep; do
4428             add_dep $lib $d
4429         done
4430     done
4431 }
4432
4433 merge_deps libavfilter $FILTER_LIST
4434
4435 echo "install prefix            $prefix"
4436 echo "source path               $source_path"
4437 echo "C compiler                $cc"
4438 echo "ARCH                      $arch ($cpu)"
4439 if test "$build_suffix" != ""; then
4440     echo "build suffix              $build_suffix"
4441 fi
4442 if test "$progs_suffix" != ""; then
4443     echo "progs suffix              $progs_suffix"
4444 fi
4445 if test "$extra_version" != ""; then
4446     echo "version string suffix     $extra_version"
4447 fi
4448 echo "big-endian                ${bigendian-no}"
4449 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4450 if enabled x86; then
4451     echo "${yasmexe}                      ${yasm-no}"
4452     echo "MMX enabled               ${mmx-no}"
4453     echo "MMXEXT enabled            ${mmxext-no}"
4454     echo "3DNow! enabled            ${amd3dnow-no}"
4455     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4456     echo "SSE enabled               ${sse-no}"
4457     echo "SSSE3 enabled             ${ssse3-no}"
4458     echo "AVX enabled               ${avx-no}"
4459     echo "FMA4 enabled              ${fma4-no}"
4460     echo "i686 features enabled     ${i686-no}"
4461     echo "CMOV is fast              ${fast_cmov-no}"
4462     echo "EBX available             ${ebx_available-no}"
4463     echo "EBP available             ${ebp_available-no}"
4464 fi
4465 if enabled arm; then
4466     echo "ARMv5TE enabled           ${armv5te-no}"
4467     echo "ARMv6 enabled             ${armv6-no}"
4468     echo "ARMv6T2 enabled           ${armv6t2-no}"
4469     echo "VFP enabled               ${vfp-no}"
4470     echo "NEON enabled              ${neon-no}"
4471     echo "THUMB enabled             ${thumb-no}"
4472 fi
4473 if enabled mips; then
4474     echo "MIPS FPU enabled          ${mipsfpu-no}"
4475     echo "MIPS32R2 enabled          ${mips32r2-no}"
4476     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4477     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4478 fi
4479 if enabled ppc; then
4480     echo "AltiVec enabled           ${altivec-no}"
4481     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4482     echo "dcbzl available           ${dcbzl-no}"
4483 fi
4484 if enabled sparc; then
4485     echo "VIS enabled               ${vis-no}"
4486 fi
4487 echo "debug symbols             ${debug-no}"
4488 echo "strip symbols             ${stripping-no}"
4489 echo "optimize for size         ${small-no}"
4490 echo "optimizations             ${optimizations-no}"
4491 echo "static                    ${static-no}"
4492 echo "shared                    ${shared-no}"
4493 echo "postprocessing support    ${postproc-no}"
4494 echo "new filter support        ${avfilter-no}"
4495 echo "network support           ${network-no}"
4496 echo "threading support         ${thread_type-no}"
4497 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4498 echo "SDL support               ${sdl-no}"
4499 echo "opencl enabled            ${opencl-no}"
4500 echo "libshine enabled          ${libshine-no}"
4501 echo "texi2html enabled         ${texi2html-no}"
4502 echo "perl enabled              ${perl-no}"
4503 echo "pod2man enabled           ${pod2man-no}"
4504 echo "makeinfo enabled          ${makeinfo-no}"
4505 test -n "$random_seed" &&
4506     echo "random seed               ${random_seed}"
4507 echo
4508
4509 echo "External libraries:"
4510 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4511 echo
4512
4513 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4514     echo "Enabled ${type}s:"
4515     eval list=\$$(toupper $type)_LIST
4516     print_enabled '_*' $list | print_3_columns
4517     echo
4518 done
4519
4520 license="LGPL version 2.1 or later"
4521 if enabled nonfree; then
4522     license="nonfree and unredistributable"
4523 elif enabled gplv3; then
4524     license="GPL version 3 or later"
4525 elif enabled lgplv3; then
4526     license="LGPL version 3 or later"
4527 elif enabled gpl; then
4528     license="GPL version 2 or later"
4529 fi
4530
4531 echo "License: $license"
4532
4533 echo "Creating config.mak, config.h, and doc/config.texi..."
4534
4535 test -e Makefile || $ln_s "$source_path/Makefile" .
4536
4537 enabled stripping || strip="echo skipping strip"
4538
4539 config_files="$TMPH config.mak doc/config.texi"
4540
4541 cat > config.mak <<EOF
4542 # Automatically generated by configure - do not modify!
4543 ifndef FFMPEG_CONFIG_MAK
4544 FFMPEG_CONFIG_MAK=1
4545 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4546 prefix=$prefix
4547 LIBDIR=\$(DESTDIR)$libdir
4548 SHLIBDIR=\$(DESTDIR)$shlibdir
4549 INCDIR=\$(DESTDIR)$incdir
4550 BINDIR=\$(DESTDIR)$bindir
4551 DATADIR=\$(DESTDIR)$datadir
4552 MANDIR=\$(DESTDIR)$mandir
4553 SRC_PATH=$source_path
4554 ifndef MAIN_MAKEFILE
4555 SRC_PATH:=\$(SRC_PATH:.%=..%)
4556 endif
4557 CC_IDENT=$cc_ident
4558 ARCH=$arch
4559 CC=$cc
4560 CXX=$cxx
4561 AS=$as
4562 LD=$ld
4563 DEPCC=$dep_cc
4564 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4565 DEPAS=$as
4566 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4567 YASM=$yasmexe
4568 DEPYASM=$yasmexe
4569 AR=$ar
4570 ARFLAGS=$arflags
4571 AR_O=$ar_o
4572 RANLIB=$ranlib
4573 CP=cp -p
4574 LN_S=$ln_s
4575 STRIP=$strip
4576 CPPFLAGS=$CPPFLAGS
4577 CFLAGS=$CFLAGS
4578 CXXFLAGS=$CXXFLAGS
4579 ASFLAGS=$ASFLAGS
4580 AS_C=$AS_C
4581 AS_O=$AS_O
4582 CC_C=$CC_C
4583 CC_E=$CC_E
4584 CC_O=$CC_O
4585 CXX_C=$CXX_C
4586 CXX_O=$CXX_O
4587 LD_O=$LD_O
4588 LD_LIB=$LD_LIB
4589 LD_PATH=$LD_PATH
4590 DLLTOOL=$dlltool
4591 LDFLAGS=$LDFLAGS
4592 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4593 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4594 YASMFLAGS=$YASMFLAGS
4595 BUILDSUF=$build_suffix
4596 PROGSSUF=$progs_suffix
4597 FULLNAME=$FULLNAME
4598 LIBPREF=$LIBPREF
4599 LIBSUF=$LIBSUF
4600 LIBNAME=$LIBNAME
4601 SLIBPREF=$SLIBPREF
4602 SLIBSUF=$SLIBSUF
4603 EXESUF=$EXESUF
4604 EXTRA_VERSION=$extra_version
4605 CCDEP=$CCDEP
4606 CXXDEP=$CXXDEP
4607 CCDEP_FLAGS=$CCDEP_FLAGS
4608 ASDEP=$ASDEP
4609 ASDEP_FLAGS=$ASDEP_FLAGS
4610 CC_DEPFLAGS=$CC_DEPFLAGS
4611 AS_DEPFLAGS=$AS_DEPFLAGS
4612 HOSTCC=$host_cc
4613 HOSTLD=$host_ld
4614 HOSTCFLAGS=$host_cflags
4615 HOSTCPPFLAGS=$host_cppflags
4616 HOSTEXESUF=$HOSTEXESUF
4617 HOSTLDFLAGS=$host_ldflags
4618 HOSTLIBS=$host_libs
4619 DEPHOSTCC=$host_cc
4620 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4621 HOSTCCDEP=$HOSTCCDEP
4622 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4623 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4624 HOSTCC_C=$HOSTCC_C
4625 HOSTCC_O=$HOSTCC_O
4626 HOSTLD_O=$HOSTLD_O
4627 TARGET_EXEC=$target_exec $target_exec_args
4628 TARGET_PATH=$target_path
4629 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4630 LIBS-ffplay=$sdl_libs
4631 CFLAGS-ffplay=$sdl_cflags
4632 ZLIB=$($ldflags_filter -lz)
4633 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4634 EXTRALIBS=$extralibs
4635 COMPAT_OBJS=$compat_objs
4636 EXEOBJS=$exeobjs
4637 INSTALL=$install
4638 LIBTARGET=${LIBTARGET}
4639 SLIBNAME=${SLIBNAME}
4640 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4641 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4642 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4643 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4644 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4645 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4646 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4647 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4648 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4649 NOREDZONE_FLAGS=$noredzone_flags
4650 EOF
4651
4652 get_version(){
4653     lcname=lib${1}
4654     name=$(toupper $lcname)
4655     file=$source_path/$lcname/version.h
4656     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4657     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4658     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4659     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4660     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4661 }
4662
4663 map 'get_version $v' $LIBRARY_LIST
4664
4665 cat > $TMPH <<EOF
4666 /* Automatically generated by configure - do not modify! */
4667 #ifndef FFMPEG_CONFIG_H
4668 #define FFMPEG_CONFIG_H
4669 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4670 #define FFMPEG_LICENSE "$(c_escape $license)"
4671 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4672 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4673 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4674 #define av_restrict $_restrict
4675 #define EXTERN_PREFIX "${extern_prefix}"
4676 #define EXTERN_ASM ${extern_prefix}
4677 #define SLIBSUF "$SLIBSUF"
4678 #define HAVE_MMX2 HAVE_MMXEXT
4679 EOF
4680
4681 test -n "$assert_level" &&
4682     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4683
4684 test -n "$malloc_prefix" &&
4685     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4686
4687 if enabled yasm; then
4688     append config_files $TMPASM
4689     printf '' >$TMPASM
4690 fi
4691
4692 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4693
4694
4695 mkdir -p doc
4696 echo "@c auto-generated by configure" > doc/config.texi
4697
4698 print_config ARCH_   "$config_files" $ARCH_LIST
4699 print_config HAVE_   "$config_files" $HAVE_LIST
4700 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4701                                      $CONFIG_EXTRA      \
4702                                      $ALL_COMPONENTS    \
4703
4704 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4705 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4706
4707 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4708 cp_if_changed $TMPH config.h
4709 touch .config
4710
4711 enabled yasm && cp_if_changed $TMPASM config.asm
4712
4713 cat > $TMPH <<EOF
4714 /* Generated by ffconf */
4715 #ifndef AVUTIL_AVCONFIG_H
4716 #define AVUTIL_AVCONFIG_H
4717 EOF
4718
4719 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4720
4721 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4722
4723 cp_if_changed $TMPH libavutil/avconfig.h
4724
4725 if test -n "$WARNINGS"; then
4726     printf "\n$WARNINGS"
4727     enabled fatal_warnings && exit 1
4728 fi
4729
4730 # build pkg-config files
4731
4732 pkgconfig_generate(){
4733     name=$1
4734     shortname=${name#lib}${build_suffix}
4735     comment=$2
4736     version=$3
4737     libs=$4
4738     requires=$5
4739     enabled ${name#lib} || return 0
4740     mkdir -p $name
4741     cat <<EOF > $name/$name${build_suffix}.pc
4742 prefix=$prefix
4743 exec_prefix=\${prefix}
4744 libdir=$libdir
4745 includedir=$incdir
4746
4747 Name: $name
4748 Description: $comment
4749 Version: $version
4750 Requires: $(enabled shared || echo $requires)
4751 Requires.private: $(enabled shared && echo $requires)
4752 Conflicts:
4753 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4754 Libs.private: $(enabled shared && echo $libs)
4755 Cflags: -I\${includedir}
4756 EOF
4757
4758 mkdir -p doc/examples/pc-uninstalled
4759 includedir=${source_path}
4760 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4761     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4762 prefix=
4763 exec_prefix=
4764 libdir=\${pcfiledir}/../../../$name
4765 includedir=${includedir}
4766
4767 Name: $name
4768 Description: $comment
4769 Version: $version
4770 Requires: $requires
4771 Conflicts:
4772 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4773 Cflags: -I\${includedir}
4774 EOF
4775 }
4776
4777 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4778 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4779 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4780 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4781 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4782 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4783 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4784 lavfi_libs=${lavfi_libs%, }
4785
4786 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4787 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4788
4789 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4790 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4791 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4792 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$lavd_libs"
4793 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4794 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4795 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4796 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4797 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4798
4799 fix_ffmpeg_remote(){
4800     git_remote_from=$1
4801     git_remote_to=$2
4802     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4803     if [ "$fixme_remote" != "" ]; then
4804         echolog "
4805 Outdated domain in git config, the official domain for ffmpeg git is since
4806 November 2011, source.ffmpeg.org, both the old and the new point to the same
4807 repository and server. To update it enter the following commands:
4808 "
4809         for remote in $fixme_remote; do
4810             echolog "git remote set-url $remote $git_remote_to"
4811         done
4812     fi
4813 }
4814
4815 if test -f "$source_path/.git/config"; then
4816     remote_from=git.videolan.org
4817     remote_to=source.ffmpeg.org
4818     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4819     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4820 fi