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   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90
  91 Licensing options:
  92   --enable-gpl             allow use of GPL code, the resulting libs
  93                            and binaries will be under GPL [no]
  94   --enable-version3        upgrade (L)GPL to version 3 [no]
  95   --enable-nonfree         allow use of nonfree code, the resulting libs
  96                            and binaries will be unredistributable [no]
  97
  98 Configuration options:
  99   --disable-static         do not build static libraries [no]
 100   --enable-shared          build shared libraries [no]
 101   --enable-small           optimize for size instead of speed
 102   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 103   --enable-gray            enable full grayscale support (slower color)
 104   --disable-swscale-alpha  disable alpha channel support in swscale
 105   --disable-all            disable building components, libraries and programs
 106   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 107   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
 108
 109 Program options:
 110   --disable-programs       do not build command line programs
 111   --disable-ffmpeg         disable ffmpeg build
 112   --disable-ffplay         disable ffplay build
 113   --disable-ffprobe        disable ffprobe build
 114   --disable-ffserver       disable ffserver build
 115
 116 Documentation options:
 117   --disable-doc            do not build documentation
 118   --disable-htmlpages      do not build HTML documentation pages
 119   --disable-manpages       do not build man documentation pages
 120   --disable-podpages       do not build POD documentation pages
 121   --disable-txtpages       do not build text documentation pages
 122
 123 Component options:
 124   --disable-avdevice       disable libavdevice build
 125   --disable-avcodec        disable libavcodec build
 126   --disable-avformat       disable libavformat build
 127   --disable-avutil         disable libavutil build
 128   --disable-swresample     disable libswresample build
 129   --disable-swscale        disable libswscale build
 130   --disable-postproc       disable libpostproc build
 131   --disable-avfilter       disable libavfilter build
 132   --enable-avresample      enable libavresample build [no]
 133   --disable-pthreads       disable pthreads [auto]
 134   --disable-w32threads     disable Win32 threads [auto]
 135   --disable-os2threads     disable OS/2 threads [auto]
 136   --disable-network        disable network support [no]
 137   --disable-dct            disable DCT code
 138   --disable-dwt            disable DWT code
 139   --disable-error-resilience disable error resilience code
 140   --disable-lsp            disable LSP code
 141   --disable-lzo            disable LZO decoder code
 142   --disable-mdct           disable MDCT code
 143   --disable-rdft           disable RDFT code
 144   --disable-fft            disable FFT code
 145
 146 Hardware accelerators:
 147   --disable-dxva2          disable DXVA2 code [autodetect]
 148   --disable-vaapi          disable VAAPI code [autodetect]
 149   --enable-vda             enable VDA code
 150   --disable-vdpau          disable VDPAU code [autodetect]
 151
 152 Individual component options:
 153   --disable-everything     disable all components listed below
 154   --disable-encoder=NAME   disable encoder NAME
 155   --enable-encoder=NAME    enable encoder NAME
 156   --disable-encoders       disable all encoders
 157   --disable-decoder=NAME   disable decoder NAME
 158   --enable-decoder=NAME    enable decoder NAME
 159   --disable-decoders       disable all decoders
 160   --disable-hwaccel=NAME   disable hwaccel NAME
 161   --enable-hwaccel=NAME    enable hwaccel NAME
 162   --disable-hwaccels       disable all hwaccels
 163   --disable-muxer=NAME     disable muxer NAME
 164   --enable-muxer=NAME      enable muxer NAME
 165   --disable-muxers         disable all muxers
 166   --disable-demuxer=NAME   disable demuxer NAME
 167   --enable-demuxer=NAME    enable demuxer NAME
 168   --disable-demuxers       disable all demuxers
 169   --enable-parser=NAME     enable parser NAME
 170   --disable-parser=NAME    disable parser NAME
 171   --disable-parsers        disable all parsers
 172   --enable-bsf=NAME        enable bitstream filter NAME
 173   --disable-bsf=NAME       disable bitstream filter NAME
 174   --disable-bsfs           disable all bitstream filters
 175   --enable-protocol=NAME   enable protocol NAME
 176   --disable-protocol=NAME  disable protocol NAME
 177   --disable-protocols      disable all protocols
 178   --enable-indev=NAME      enable input device NAME
 179   --disable-indev=NAME     disable input device NAME
 180   --disable-indevs         disable input devices
 181   --enable-outdev=NAME     enable output device NAME
 182   --disable-outdev=NAME    disable output device NAME
 183   --disable-outdevs        disable output devices
 184   --disable-devices        disable all devices
 185   --enable-filter=NAME     enable filter NAME
 186   --disable-filter=NAME    disable filter NAME
 187   --disable-filters        disable all filters
 188
 189 External library support:
 190   --enable-avisynth        enable reading of AviSynth script files [no]
 191   --disable-bzlib          disable bzlib [autodetect]
 192   --enable-fontconfig      enable fontconfig
 193   --enable-frei0r          enable frei0r video filtering
 194   --enable-gnutls          enable gnutls [no]
 195   --disable-iconv          disable iconv [autodetect]
 196   --enable-ladspa          enable LADSPA audio filtering
 197   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 198   --enable-libass          enable libass subtitles rendering [no]
 199   --enable-libbluray       enable BluRay reading using libbluray [no]
 200   --enable-libcaca         enable textual display using libcaca
 201   --enable-libcelt         enable CELT decoding via libcelt [no]
 202   --enable-libcdio         enable audio CD grabbing with libcdio
 203   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 204                            and libraw1394 [no]
 205   --enable-libfaac         enable AAC encoding via libfaac [no]
 206   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 207   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 208   --enable-libfreetype     enable libfreetype [no]
 209   --enable-libgme          enable Game Music Emu via libgme [no]
 210   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 211   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 212   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 213   --enable-libmodplug      enable ModPlug via libmodplug [no]
 214   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 215   --enable-libnut          enable NUT (de)muxing via libnut,
 216                            native (de)muxer exists [no]
 217   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 218   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 219   --enable-libopencv       enable video filtering via libopencv [no]
 220   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 221   --enable-libopus         enable Opus decoding via libopus [no]
 222   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 223   --enable-libquvi         enable quvi input via libquvi [no]
 224   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 225   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 226   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 227   --enable-libsoxr         enable Include libsoxr resampling [no]
 228   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 229   --enable-libssh          enable SFTP protocol via libssh [no]
 230   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 231   --enable-libtheora       enable Theora encoding via libtheora [no]
 232   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 233   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 234   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 235   --enable-libvidstab      enable video stabilization using vid.stab [no]
 236   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 237   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 238   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 239                            native implementation exists [no]
 240   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 241   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 242   --enable-libx264         enable H.264 encoding via x264 [no]
 243   --enable-libxavs         enable AVS encoding via xavs [no]
 244   --enable-libxvid         enable Xvid encoding via xvidcore,
 245                            native MPEG-4/Xvid encoder exists [no]
 246   --enable-libzmq          enable message passing via libzmq [no]
 247   --enable-libzvbi         enable teletext support via libzvbi [no]
 248   --enable-openal          enable OpenAL 1.1 capture support [no]
 249   --enable-opencl          enable OpenCL code
 250   --enable-openssl         enable openssl [no]
 251   --enable-x11grab         enable X11 grabbing [no]
 252   --disable-zlib           disable zlib [autodetect]
 253
 254 Advanced options (experts only):
 255   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 256   --enable-cross-compile   assume a cross-compiler is used
 257   --sysroot=PATH           root of cross-build tree
 258   --sysinclude=PATH        location of cross-build system headers
 259   --target-os=OS           compiler targets OS [$target_os]
 260   --target-exec=CMD        command to run executables on target
 261   --target-path=DIR        path to view of build directory on target
 262   --target-samples=DIR     path to samples directory on target
 263   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 264   --toolchain=NAME         set tool defaults according to NAME
 265   --nm=NM                  use nm tool NM [$nm_default]
 266   --ar=AR                  use archive tool AR [$ar_default]
 267   --as=AS                  use assembler AS [$as_default]
 268   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 269   --cc=CC                  use C compiler CC [$cc_default]
 270   --cxx=CXX                use C compiler CXX [$cxx_default]
 271   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 272   --ld=LD                  use linker LD [$ld_default]
 273   --host-cc=HOSTCC         use host C compiler HOSTCC
 274   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 275   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 276   --host-ld=HOSTLD         use host linker HOSTLD
 277   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 278   --host-libs=HLIBS        use libs HLIBS when linking for host
 279   --host-os=OS             compiler host OS [$target_os]
 280   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 281   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 282   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 283   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 284   --extra-version=STRING   version string suffix []
 285   --optflags=OPTFLAGS      override optimization-related compiler flags
 286   --build-suffix=SUFFIX    library name suffix []
 287   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 288   --progs-suffix=SUFFIX    program name suffix []
 289   --arch=ARCH              select architecture [$arch]
 290   --cpu=CPU                select the minimum required CPU (affects
 291                            instruction selection, may crash on older CPUs)
 292   --enable-pic             build position-independent code
 293   --enable-sram            allow use of on-chip SRAM
 294   --enable-thumb           compile for Thumb instruction set
 295   --disable-symver         disable symbol versioning
 296   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 297   --disable-safe-bitstream-reader
 298                            disable buffer boundary checking in bitreaders
 299                            (faster, but may crash)
 300   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 301   --enable-lto             use link-time optimization
 302
 303 Optimization options (experts only):
 304   --disable-asm            disable all assembler optimizations
 305   --disable-altivec        disable AltiVec optimizations
 306   --disable-amd3dnow       disable 3DNow! optimizations
 307   --disable-amd3dnowext    disable 3DNow! extended optimizations
 308   --disable-mmx            disable MMX optimizations
 309   --disable-mmxext         disable MMXEXT optimizations
 310   --disable-sse            disable SSE optimizations
 311   --disable-sse2           disable SSE2 optimizations
 312   --disable-sse3           disable SSE3 optimizations
 313   --disable-ssse3          disable SSSE3 optimizations
 314   --disable-sse4           disable SSE4 optimizations
 315   --disable-sse42          disable SSE4.2 optimizations
 316   --disable-avx            disable AVX optimizations
 317   --disable-fma4           disable FMA4 optimizations
 318   --disable-armv5te        disable armv5te optimizations
 319   --disable-armv6          disable armv6 optimizations
 320   --disable-armv6t2        disable armv6t2 optimizations
 321   --disable-vfp            disable VFP optimizations
 322   --disable-neon           disable NEON optimizations
 323   --disable-vis            disable VIS optimizations
 324   --disable-inline-asm     disable use of inline assembler
 325   --disable-yasm           disable use of yasm assembler
 326   --disable-mips32r2       disable MIPS32R2 optimizations
 327   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 328   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 329   --disable-mipsfpu        disable floating point MIPS optimizations
 330   --disable-fast-unaligned consider unaligned accesses slow
 331
 332 Developer options (useful when working on FFmpeg itself):
 333   --disable-debug          disable debugging symbols
 334   --enable-debug=LEVEL     set the debug level [$debuglevel]
 335   --disable-optimizations  disable compiler optimizations
 336   --enable-extra-warnings  enable more compiler warnings
 337   --disable-stripping      disable stripping of executables and shared libraries
 338   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 339                            2 causes a slowdown at runtime.
 340   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 341   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 342                            leaks and errors, using the specified valgrind binary.
 343                            Cannot be combined with --target-exec
 344   --enable-ftrapv          Trap arithmetic overflows
 345   --samples=PATH           location of test samples for FATE, if not set use
 346                            \$FATE_SAMPLES at make invocation time.
 347   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 348                            should be used only for debugging purposes)
 349   --enable-random          randomly enable/disable components
 350   --disable-random
 351   --enable-random=LIST     randomly enable/disable specific components or
 352   --disable-random=LIST    component groups. LIST is a comma-separated list
 353                            of NAME[:PROB] entries where NAME is a component
 354                            (group) and PROB the probability associated with
 355                            NAME (default 0.5).
 356   --random-seed=VALUE      seed value for --enable/disable-random
 357
 358 NOTE: Object files are built at the place where configure is launched.
 359 EOF
 360   exit 0
 361 }
 362
 363 quotes='""'
 364
 365 log(){
 366     echo "$@" >> $logfile
 367 }
 368
 369 log_file(){
 370     log BEGIN $1
 371     pr -n -t $1 >> $logfile
 372     log END $1
 373 }
 374
 375 echolog(){
 376     log "$@"
 377     echo "$@"
 378 }
 379
 380 warn(){
 381     log "WARNING: $*"
 382     WARNINGS="${WARNINGS}WARNING: $*\n"
 383 }
 384
 385 die(){
 386     echolog "$@"
 387     cat <<EOF
 388
 389 If you think configure made a mistake, make sure you are using the latest
 390 version from Git.  If the latest version fails, report the problem to the
 391 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 392 EOF
 393     if disabled logging; then
 394         cat <<EOF
 395 Rerun configure with logging enabled (do not use --disable-logging), and
 396 include the log this produces with your report.
 397 EOF
 398     else
 399         cat <<EOF
 400 Include the log file "$logfile" produced by configure as this will help
 401 solving the problem.
 402 EOF
 403     fi
 404     exit 1
 405 }
 406
 407 # Avoid locale weirdness, besides we really just want to translate ASCII.
 408 toupper(){
 409     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 410 }
 411
 412 tolower(){
 413     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 414 }
 415
 416 c_escape(){
 417     echo "$*" | sed 's/["\\]/\\\0/g'
 418 }
 419
 420 sh_quote(){
 421     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 422     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 423     echo "$v"
 424 }
 425
 426 cleanws(){
 427     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 428 }
 429
 430 filter(){
 431     pat=$1
 432     shift
 433     for v; do
 434         eval "case $v in $pat) echo $v ;; esac"
 435     done
 436 }
 437
 438 filter_out(){
 439     pat=$1
 440     shift
 441     for v; do
 442         eval "case $v in $pat) ;; *) echo $v ;; esac"
 443     done
 444 }
 445
 446 map(){
 447     m=$1
 448     shift
 449     for v; do eval $m; done
 450 }
 451
 452 add_suffix(){
 453     suffix=$1
 454     shift
 455     for v; do echo ${v}${suffix}; done
 456 }
 457
 458 set_all(){
 459     value=$1
 460     shift
 461     for var in $*; do
 462         eval $var=$value
 463     done
 464 }
 465
 466 set_weak(){
 467     value=$1
 468     shift
 469     for var; do
 470         eval : \${$var:=$value}
 471     done
 472 }
 473
 474 sanitize_var_name(){
 475     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 476 }
 477
 478 set_safe(){
 479     var=$1
 480     shift
 481     eval $(sanitize_var_name "$var")='$*'
 482 }
 483
 484 get_safe(){
 485     eval echo \$$(sanitize_var_name "$1")
 486 }
 487
 488 pushvar(){
 489     for pvar in $*; do
 490         eval level=\${${pvar}_level:=0}
 491         eval ${pvar}_${level}="\$$pvar"
 492         eval ${pvar}_level=$(($level+1))
 493     done
 494 }
 495
 496 popvar(){
 497     for pvar in $*; do
 498         eval level=\${${pvar}_level:-0}
 499         test $level = 0 && continue
 500         eval level=$(($level-1))
 501         eval $pvar="\${${pvar}_${level}}"
 502         eval ${pvar}_level=$level
 503         eval unset ${pvar}_${level}
 504     done
 505 }
 506
 507 enable(){
 508     set_all yes $*
 509 }
 510
 511 disable(){
 512     set_all no $*
 513 }
 514
 515 enable_weak(){
 516     set_weak yes $*
 517 }
 518
 519 disable_weak(){
 520     set_weak no $*
 521 }
 522
 523 enable_safe(){
 524     for var; do
 525         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 526     done
 527 }
 528
 529 disable_safe(){
 530     for var; do
 531         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 532     done
 533 }
 534
 535 do_enable_deep(){
 536     for var; do
 537         enabled $var && continue
 538         eval sel="\$${var}_select"
 539         eval sgs="\$${var}_suggest"
 540         pushvar var sgs
 541         enable_deep $sel
 542         popvar sgs
 543         enable_deep_weak $sgs
 544         popvar var
 545     done
 546 }
 547
 548 enable_deep(){
 549     do_enable_deep $*
 550     enable $*
 551 }
 552
 553 enable_deep_weak(){
 554     for var; do
 555         disabled $var && continue
 556         pushvar var
 557         do_enable_deep $var
 558         popvar var
 559         enable_weak $var
 560     done
 561 }
 562
 563 enabled(){
 564     test "${1#!}" = "$1" && op== || op=!=
 565     eval test "x\$${1#!}" $op "xyes"
 566 }
 567
 568 disabled(){
 569     test "${1#!}" = "$1" && op== || op=!=
 570     eval test "x\$${1#!}" $op "xno"
 571 }
 572
 573 enabled_all(){
 574     for opt; do
 575         enabled $opt || return 1
 576     done
 577 }
 578
 579 disabled_all(){
 580     for opt; do
 581         disabled $opt || return 1
 582     done
 583 }
 584
 585 enabled_any(){
 586     for opt; do
 587         enabled $opt && return 0
 588     done
 589 }
 590
 591 disabled_any(){
 592     for opt; do
 593         disabled $opt && return 0
 594     done
 595     return 1
 596 }
 597
 598 set_default(){
 599     for opt; do
 600         eval : \${$opt:=\$${opt}_default}
 601     done
 602 }
 603
 604 is_in(){
 605     value=$1
 606     shift
 607     for var in $*; do
 608         [ $var = $value ] && return 0
 609     done
 610     return 1
 611 }
 612
 613 do_check_deps(){
 614     for cfg; do
 615         cfg="${cfg#!}"
 616         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 617         disabled ${cfg}_checking && continue
 618         enable ${cfg}_checking
 619         append allopts $cfg
 620
 621         eval dep_all="\$${cfg}_deps"
 622         eval dep_any="\$${cfg}_deps_any"
 623         eval dep_sel="\$${cfg}_select"
 624         eval dep_sgs="\$${cfg}_suggest"
 625         eval dep_ifa="\$${cfg}_if"
 626         eval dep_ifn="\$${cfg}_if_any"
 627
 628         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 629         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 630         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 631
 632         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 633         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 634         enabled_all  $dep_all || disable $cfg
 635         enabled_any  $dep_any || disable $cfg
 636         disabled_any $dep_sel && disable $cfg
 637
 638         if enabled $cfg; then
 639             enable_deep $dep_sel
 640             enable_deep_weak $dep_sgs
 641         fi
 642
 643         disable ${cfg}_checking
 644     done
 645 }
 646
 647 check_deps(){
 648     unset allopts
 649
 650     do_check_deps "$@"
 651
 652     for cfg in $allopts; do
 653         enabled $cfg || continue
 654         eval dep_extralibs="\$${cfg}_extralibs"
 655         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 656     done
 657 }
 658
 659 print_config(){
 660     pfx=$1
 661     files=$2
 662     shift 2
 663     map 'eval echo "$v \${$v:-no}"' "$@" |
 664     awk "BEGIN { split(\"$files\", files) }
 665         {
 666             c = \"$pfx\" toupper(\$1);
 667             v = \$2;
 668             sub(/yes/, 1, v);
 669             sub(/no/,  0, v);
 670             for (f in files) {
 671                 file = files[f];
 672                 if (file ~ /\\.h\$/) {
 673                     printf(\"#define %s %d\\n\", c, v) >>file;
 674                 } else if (file ~ /\\.asm\$/) {
 675                     printf(\"%%define %s %d\\n\", c, v) >>file;
 676                 } else if (file ~ /\\.mak\$/) {
 677                     n = -v ? \"\" : \"!\";
 678                     printf(\"%s%s=yes\\n\", n, c) >>file;
 679                 } else if (file ~ /\\.texi\$/) {
 680                     pre = -v ? \"\" : \"@c \";
 681                     yesno = \$2;
 682                     c2 = tolower(c);
 683                     gsub(/_/, \"-\", c2);
 684                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 685                 }
 686             }
 687         }"
 688 }
 689
 690 print_enabled(){
 691     suf=$1
 692     shift
 693     for v; do
 694         enabled $v && printf "%s\n" ${v%$suf};
 695     done
 696 }
 697
 698 append(){
 699     var=$1
 700     shift
 701     eval "$var=\"\$$var $*\""
 702 }
 703
 704 prepend(){
 705     var=$1
 706     shift
 707     eval "$var=\"$* \$$var\""
 708 }
 709
 710 add_cppflags(){
 711     append CPPFLAGS "$@"
 712 }
 713
 714 add_cflags(){
 715     append CFLAGS $($cflags_filter "$@")
 716 }
 717
 718 add_cxxflags(){
 719     append CXXFLAGS $($cflags_filter "$@")
 720 }
 721
 722 add_asflags(){
 723     append ASFLAGS $($asflags_filter "$@")
 724 }
 725
 726 add_ldflags(){
 727     append LDFLAGS $($ldflags_filter "$@")
 728 }
 729
 730 add_extralibs(){
 731     prepend extralibs $($ldflags_filter "$@")
 732 }
 733
 734 add_host_cppflags(){
 735     append host_cppflags "$@"
 736 }
 737
 738 add_host_cflags(){
 739     append host_cflags $($host_cflags_filter "$@")
 740 }
 741
 742 add_host_ldflags(){
 743     append host_ldflags $($host_ldflags_filter "$@")
 744 }
 745
 746 add_compat(){
 747     append compat_objs $1
 748     shift
 749     map 'add_cppflags -D$v' "$@"
 750 }
 751
 752 check_cmd(){
 753     log "$@"
 754     "$@" >> $logfile 2>&1
 755 }
 756
 757 cc_o(){
 758     eval printf '%s\\n' $CC_O
 759 }
 760
 761 cc_e(){
 762     eval printf '%s\\n' $CC_E
 763 }
 764
 765 check_cc(){
 766     log check_cc "$@"
 767     cat > $TMPC
 768     log_file $TMPC
 769     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 770 }
 771
 772 check_cxx(){
 773     log check_cxx "$@"
 774     cat > $TMPCPP
 775     log_file $TMPCPP
 776     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 777 }
 778
 779 check_cpp(){
 780     log check_cpp "$@"
 781     cat > $TMPC
 782     log_file $TMPC
 783     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 784 }
 785
 786 as_o(){
 787     eval printf '%s\\n' $AS_O
 788 }
 789
 790 check_as(){
 791     log check_as "$@"
 792     cat > $TMPS
 793     log_file $TMPS
 794     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 795 }
 796
 797 check_inline_asm(){
 798     log check_inline_asm "$@"
 799     name="$1"
 800     code="$2"
 801     shift 2
 802     disable $name
 803     check_cc "$@" <<EOF && enable $name
 804 void foo(void){ __asm__ volatile($code); }
 805 EOF
 806 }
 807
 808 check_insn(){
 809     log check_insn "$@"
 810     check_inline_asm ${1}_inline "\"$2\""
 811     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 812 }
 813
 814 check_yasm(){
 815     log check_yasm "$@"
 816     echo "$1" > $TMPS
 817     log_file $TMPS
 818     shift 1
 819     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 820 }
 821
 822 ld_o(){
 823     eval printf '%s\\n' $LD_O
 824 }
 825
 826 check_ld(){
 827     log check_ld "$@"
 828     type=$1
 829     shift 1
 830     flags=$(filter_out '-l*|*.so' $@)
 831     libs=$(filter '-l*|*.so' $@)
 832     check_$type $($cflags_filter $flags) || return
 833     flags=$($ldflags_filter $flags)
 834     libs=$($ldflags_filter $libs)
 835     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 836 }
 837
 838 check_code(){
 839     log check_code "$@"
 840     check=$1
 841     headers=$2
 842     code=$3
 843     shift 3
 844     {
 845         for hdr in $headers; do
 846             echo "#include <$hdr>"
 847         done
 848         echo "int main(void) { $code; return 0; }"
 849     } | check_$check "$@"
 850 }
 851
 852 check_cppflags(){
 853     log check_cppflags "$@"
 854     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 855 int x;
 856 EOF
 857 }
 858
 859 check_cflags(){
 860     log check_cflags "$@"
 861     set -- $($cflags_filter "$@")
 862     check_cc "$@" <<EOF && append CFLAGS "$@"
 863 int x;
 864 EOF
 865 }
 866
 867 check_cxxflags(){
 868     log check_cxxflags "$@"
 869     set -- $($cflags_filter "$@")
 870     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 871 int x;
 872 EOF
 873 }
 874
 875 test_ldflags(){
 876     log test_ldflags "$@"
 877     check_ld "cc" "$@" <<EOF
 878 int main(void){ return 0; }
 879 EOF
 880 }
 881
 882 check_ldflags(){
 883     log check_ldflags "$@"
 884     test_ldflags "$@" && add_ldflags "$@"
 885 }
 886
 887 check_header(){
 888     log check_header "$@"
 889     header=$1
 890     shift
 891     disable_safe $header
 892     check_cpp "$@" <<EOF && enable_safe $header
 893 #include <$header>
 894 int x;
 895 EOF
 896 }
 897
 898 check_func(){
 899     log check_func "$@"
 900     func=$1
 901     shift
 902     disable $func
 903     check_ld "cc" "$@" <<EOF && enable $func
 904 extern int $func();
 905 int main(void){ $func(); }
 906 EOF
 907 }
 908
 909 check_mathfunc(){
 910     log check_mathfunc "$@"
 911     func=$1
 912     narg=$2
 913     shift 2
 914     test $narg = 2 && args="f, g" || args="f"
 915     disable $func
 916     check_ld "cc" "$@" <<EOF && enable $func
 917 #include <math.h>
 918 float foo(float f, float g) { return $func($args); }
 919 int main(void){ return (int) foo; }
 920 EOF
 921 }
 922
 923 check_func_headers(){
 924     log check_func_headers "$@"
 925     headers=$1
 926     funcs=$2
 927     shift 2
 928     {
 929         for hdr in $headers; do
 930             echo "#include <$hdr>"
 931         done
 932         for func in $funcs; do
 933             echo "long check_$func(void) { return (long) $func; }"
 934         done
 935         echo "int main(void) { return 0; }"
 936     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 937 }
 938
 939 check_class_headers_cpp(){
 940     log check_class_headers_cpp "$@"
 941     headers=$1
 942     classes=$2
 943     shift 2
 944     {
 945         for hdr in $headers; do
 946             echo "#include <$hdr>"
 947         done
 948         echo "int main(void) { "
 949         i=1
 950         for class in $classes; do
 951             echo "$class obj$i;"
 952             i=$(expr $i + 1)
 953         done
 954         echo "return 0; }"
 955     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 956 }
 957
 958 check_cpp_condition(){
 959     log check_cpp_condition "$@"
 960     header=$1
 961     condition=$2
 962     shift 2
 963     check_cpp "$@" <<EOF
 964 #include <$header>
 965 #if !($condition)
 966 #error "unsatisfied condition: $condition"
 967 #endif
 968 EOF
 969 }
 970
 971 check_lib(){
 972     log check_lib "$@"
 973     header="$1"
 974     func="$2"
 975     shift 2
 976     check_header $header && check_func $func "$@" && add_extralibs "$@"
 977 }
 978
 979 check_lib2(){
 980     log check_lib2 "$@"
 981     headers="$1"
 982     funcs="$2"
 983     shift 2
 984     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 985 }
 986
 987 check_lib_cpp(){
 988     log check_lib_cpp "$@"
 989     headers="$1"
 990     classes="$2"
 991     shift 2
 992     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 993 }
 994
 995 check_pkg_config(){
 996     log check_pkg_config "$@"
 997     pkg="$1"
 998     headers="$2"
 999     funcs="$3"
1000     shift 3
1001     check_cmd $pkg_config --exists --print-errors $pkg || return
1002     pkg_cflags=$($pkg_config --cflags $pkg)
1003     pkg_libs=$($pkg_config --libs $pkg)
1004     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1005         set_safe ${pkg}_cflags $pkg_cflags   &&
1006         set_safe ${pkg}_libs   $pkg_libs
1007 }
1008
1009 check_exec(){
1010     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1011 }
1012
1013 check_exec_crash(){
1014     code=$(cat)
1015
1016     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1017     # are safe but may not be available everywhere.  Thus we use
1018     # raise(SIGTERM) instead.  The check is run in a subshell so we
1019     # can redirect the "Terminated" message from the shell.  SIGBUS
1020     # is not defined by standard C so it is used conditionally.
1021
1022     (check_exec "$@") >> $logfile 2>&1 <<EOF
1023 #include <signal.h>
1024 static void sighandler(int sig){
1025     raise(SIGTERM);
1026 }
1027 int foo(void){
1028     $code
1029 }
1030 int (*func_ptr)(void) = foo;
1031 int main(void){
1032     signal(SIGILL, sighandler);
1033     signal(SIGFPE, sighandler);
1034     signal(SIGSEGV, sighandler);
1035 #ifdef SIGBUS
1036     signal(SIGBUS, sighandler);
1037 #endif
1038     return func_ptr();
1039 }
1040 EOF
1041 }
1042
1043 check_type(){
1044     log check_type "$@"
1045     headers=$1
1046     type=$2
1047     shift 2
1048     disable_safe "$type"
1049     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1050 }
1051
1052 check_struct(){
1053     log check_struct "$@"
1054     headers=$1
1055     struct=$2
1056     member=$3
1057     shift 3
1058     disable_safe "${struct}_${member}"
1059     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1060         enable_safe "${struct}_${member}"
1061 }
1062
1063 check_builtin(){
1064     log check_builtin "$@"
1065     name=$1
1066     headers=$2
1067     builtin=$3
1068     shift 3
1069     disable "$name"
1070     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1071 }
1072
1073 require(){
1074     name="$1"
1075     header="$2"
1076     func="$3"
1077     shift 3
1078     check_lib $header $func "$@" || die "ERROR: $name not found"
1079 }
1080
1081 require2(){
1082     name="$1"
1083     headers="$2"
1084     func="$3"
1085     shift 3
1086     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1087 }
1088
1089 require_cpp(){
1090     name="$1"
1091     headers="$2"
1092     classes="$3"
1093     shift 3
1094     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1095 }
1096
1097 require_pkg_config(){
1098     pkg="$1"
1099     check_pkg_config "$@" || die "ERROR: $pkg not found"
1100     add_cflags    $(get_safe ${pkg}_cflags)
1101     add_extralibs $(get_safe ${pkg}_libs)
1102 }
1103
1104 hostcc_o(){
1105     eval printf '%s\\n' $HOSTCC_O
1106 }
1107
1108 check_host_cc(){
1109     log check_host_cc "$@"
1110     cat > $TMPC
1111     log_file $TMPC
1112     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1113 }
1114
1115 check_host_cppflags(){
1116     log check_host_cppflags "$@"
1117     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1118 int x;
1119 EOF
1120 }
1121
1122 check_host_cflags(){
1123     log check_host_cflags "$@"
1124     set -- $($host_cflags_filter "$@")
1125     check_host_cc "$@" <<EOF && append host_cflags "$@"
1126 int x;
1127 EOF
1128 }
1129
1130 apply(){
1131     file=$1
1132     shift
1133     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1134 }
1135
1136 cp_if_changed(){
1137     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1138     mkdir -p "$(dirname $2)"
1139     $cp_f "$1" "$2"
1140 }
1141
1142 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1143 # system-dependent things.
1144
1145 COMPONENT_LIST="
1146     bsfs
1147     decoders
1148     demuxers
1149     encoders
1150     filters
1151     hwaccels
1152     indevs
1153     muxers
1154     outdevs
1155     parsers
1156     protocols
1157 "
1158
1159 EXTERNAL_LIBRARY_LIST="
1160     avisynth
1161     bzlib
1162     crystalhd
1163     fontconfig
1164     frei0r
1165     gnutls
1166     iconv
1167     ladspa
1168     libaacplus
1169     libass
1170     libbluray
1171     libcaca
1172     libcdio
1173     libcelt
1174     libdc1394
1175     libfaac
1176     libfdk_aac
1177     libflite
1178     libfreetype
1179     libgme
1180     libgsm
1181     libiec61883
1182     libilbc
1183     libmodplug
1184     libmp3lame
1185     libnut
1186     libopencore_amrnb
1187     libopencore_amrwb
1188     libopencv
1189     libopenjpeg
1190     libopus
1191     libpulse
1192     libquvi
1193     librtmp
1194     libschroedinger
1195     libshine
1196     libsoxr
1197     libspeex
1198     libssh
1199     libstagefright_h264
1200     libtheora
1201     libtwolame
1202     libutvideo
1203     libv4l2
1204     libvidstab
1205     libvo_aacenc
1206     libvo_amrwbenc
1207     libvorbis
1208     libvpx
1209     libwavpack
1210     libx264
1211     libxavs
1212     libxvid
1213     libzmq
1214     libzvbi
1215     openal
1216     opencl
1217     openssl
1218     x11grab
1219     zlib
1220 "
1221
1222 DOCUMENT_LIST="
1223     doc
1224     htmlpages
1225     manpages
1226     podpages
1227     txtpages
1228 "
1229
1230 HWACCEL_LIST="
1231     dxva2
1232     vaapi
1233     vda
1234     vdpau
1235 "
1236
1237 LIBRARY_LIST="
1238     avcodec
1239     avdevice
1240     avfilter
1241     avformat
1242     avresample
1243     avutil
1244     postproc
1245     swresample
1246     swscale
1247 "
1248
1249 PROGRAM_LIST="
1250     ffplay
1251     ffprobe
1252     ffserver
1253     ffmpeg
1254 "
1255
1256 CONFIG_LIST="
1257     $COMPONENT_LIST
1258     $DOCUMENT_LIST
1259     $EXTERNAL_LIBRARY_LIST
1260     $HWACCEL_LIST
1261     $LIBRARY_LIST
1262     $PROGRAM_LIST
1263     dct
1264     dwt
1265     error_resilience
1266     fast_unaligned
1267     fft
1268     ftrapv
1269     gpl
1270     gray
1271     hardcoded_tables
1272     incompatible_libav_abi
1273     incompatible_fork_abi
1274     lsp
1275     lzo
1276     mdct
1277     memalign_hack
1278     memory_poisoning
1279     network
1280     nonfree
1281     pic
1282     rdft
1283     runtime_cpudetect
1284     safe_bitstream_reader
1285     shared
1286     small
1287     sram
1288     static
1289     swscale_alpha
1290     thumb
1291     version3
1292     xmm_clobber_test
1293 "
1294
1295 THREADS_LIST='
1296     pthreads
1297     w32threads
1298     os2threads
1299 '
1300
1301 ATOMICS_LIST='
1302     atomics_gcc
1303     atomics_suncc
1304     atomics_win32
1305 '
1306
1307 ARCH_LIST='
1308     aarch64
1309     alpha
1310     arm
1311     avr32
1312     avr32_ap
1313     avr32_uc
1314     bfin
1315     ia64
1316     m68k
1317     mips
1318     mips64
1319     parisc
1320     ppc
1321     ppc64
1322     s390
1323     sh4
1324     sparc
1325     sparc64
1326     tilegx
1327     tilepro
1328     tomi
1329     x86
1330     x86_32
1331     x86_64
1332 '
1333
1334 ARCH_EXT_LIST_ARM='
1335     armv5te
1336     armv6
1337     armv6t2
1338     neon
1339     vfp
1340     vfpv3
1341 '
1342
1343 ARCH_EXT_LIST_X86='
1344     amd3dnow
1345     amd3dnowext
1346     avx
1347     fma4
1348     i686
1349     mmx
1350     mmxext
1351     sse
1352     sse2
1353     sse3
1354     sse4
1355     sse42
1356     ssse3
1357 '
1358
1359 ARCH_EXT_LIST="
1360     $ARCH_EXT_LIST_ARM
1361     $ARCH_EXT_LIST_X86
1362     altivec
1363     ppc4xx
1364     vis
1365     mipsfpu
1366     mips32r2
1367     mipsdspr1
1368     mipsdspr2
1369 "
1370
1371 HAVE_LIST_CMDLINE='
1372     inline_asm
1373     symver
1374     yasm
1375 '
1376
1377 HAVE_LIST_PUB='
1378     bigendian
1379     fast_unaligned
1380     incompatible_libav_abi
1381     incompatible_fork_abi
1382 '
1383
1384 MATH_FUNCS="
1385     atanf
1386     atan2f
1387     cbrt
1388     cbrtf
1389     cosf
1390     exp2
1391     exp2f
1392     expf
1393     isinf
1394     isnan
1395     ldexpf
1396     llrint
1397     llrintf
1398     log2
1399     log2f
1400     log10f
1401     lrint
1402     lrintf
1403     powf
1404     rint
1405     round
1406     roundf
1407     sinf
1408     trunc
1409     truncf
1410 "
1411
1412 HAVE_LIST="
1413     $ARCH_EXT_LIST
1414     $(add_suffix _external $ARCH_EXT_LIST)
1415     $(add_suffix _inline   $ARCH_EXT_LIST)
1416     $HAVE_LIST_CMDLINE
1417     $HAVE_LIST_PUB
1418     $THREADS_LIST
1419     $ATOMICS_LIST
1420     $MATH_FUNCS
1421     access
1422     aligned_malloc
1423     aligned_stack
1424     alsa_asoundlib_h
1425     altivec_h
1426     arpa_inet_h
1427     asm_mod_q
1428     asm_mod_y
1429     asm_types_h
1430     atomic_cas_ptr
1431     atomics_native
1432     attribute_may_alias
1433     attribute_packed
1434     cdio_paranoia_h
1435     cdio_paranoia_paranoia_h
1436     CL_cl_h
1437     clock_gettime
1438     closesocket
1439     CommandLineToArgvW
1440     cpunop
1441     CryptGenRandom
1442     dcbzl
1443     dev_bktr_ioctl_bt848_h
1444     dev_bktr_ioctl_meteor_h
1445     dev_ic_bt8xx_h
1446     dev_video_bktr_ioctl_bt848_h
1447     dev_video_meteor_ioctl_meteor_h
1448     direct_h
1449     dlfcn_h
1450     dlopen
1451     dos_paths
1452     dxva_h
1453     ebp_available
1454     ebx_available
1455     fast_64bit
1456     fast_clz
1457     fast_cmov
1458     fcntl
1459     fork
1460     getaddrinfo
1461     gethrtime
1462     getopt
1463     GetProcessAffinityMask
1464     GetProcessMemoryInfo
1465     GetProcessTimes
1466     GetSystemTimeAsFileTime
1467     getrusage
1468     getservbyport
1469     gettimeofday
1470     glob
1471     gnu_as
1472     gsm_h
1473     ibm_asm
1474     inet_aton
1475     io_h
1476     inline_asm_labels
1477     isatty
1478     jack_port_get_latency_range
1479     kbhit
1480     ldbrx
1481     libdc1394_1
1482     libdc1394_2
1483     local_aligned_16
1484     local_aligned_8
1485     localtime_r
1486     loongson
1487     lzo1x_999_compress
1488     machine_ioctl_bt848_h
1489     machine_ioctl_meteor_h
1490     machine_rw_barrier
1491     makeinfo
1492     malloc_h
1493     MapViewOfFile
1494     memalign
1495     MemoryBarrier
1496     mkstemp
1497     mm_empty
1498     mmap
1499     mprotect
1500     msvcrt
1501     nanosleep
1502     openjpeg_1_5_openjpeg_h
1503     PeekNamedPipe
1504     perl
1505     pod2man
1506     poll_h
1507     posix_memalign
1508     pragma_deprecated
1509     pthread_cancel
1510     rdtsc
1511     rsync_contimeout
1512     sarestart
1513     sched_getaffinity
1514     sdl
1515     SetConsoleTextAttribute
1516     setmode
1517     setrlimit
1518     Sleep
1519     sndio_h
1520     socklen_t
1521     soundcard_h
1522     strerror_r
1523     struct_addrinfo
1524     struct_group_source_req
1525     struct_ip_mreq_source
1526     struct_ipv6_mreq
1527     struct_pollfd
1528     struct_rusage_ru_maxrss
1529     struct_sctp_event_subscribe
1530     struct_sockaddr_in6
1531     struct_sockaddr_sa_len
1532     struct_sockaddr_storage
1533     struct_stat_st_mtim_tv_nsec
1534     struct_v4l2_frmivalenum_discrete
1535     symver_asm_label
1536     symver_gnu_asm
1537     sync_val_compare_and_swap
1538     sysconf
1539     sysctl
1540     sys_mman_h
1541     sys_param_h
1542     sys_resource_h
1543     sys_select_h
1544     sys_soundcard_h
1545     sys_time_h
1546     sys_un_h
1547     sys_videoio_h
1548     termios_h
1549     texi2html
1550     threads
1551     unistd_h
1552     usleep
1553     vfp_args
1554     VirtualAlloc
1555     windows_h
1556     winsock2_h
1557     xform_asm
1558     xmm_clobbers
1559 "
1560
1561 # options emitted with CONFIG_ prefix but not available on the command line
1562 CONFIG_EXTRA="
1563     aandcttables
1564     ac3dsp
1565     audio_frame_queue
1566     dsputil
1567     exif
1568     frame_thread_encoder
1569     gcrypt
1570     golomb
1571     gplv3
1572     h264chroma
1573     h264dsp
1574     h264pred
1575     h264qpel
1576     hpeldsp
1577     huffman
1578     lgplv3
1579     lpc
1580     mpegaudio
1581     mpegaudiodsp
1582     mpegvideo
1583     mpegvideoenc
1584     nettle
1585     rangecoder
1586     riffdec
1587     riffenc
1588     rtpdec
1589     rtpenc_chain
1590     sinewin
1591     videodsp
1592     vp3dsp
1593 "
1594
1595 CMDLINE_SELECT="
1596     $ARCH_EXT_LIST
1597     $CONFIG_LIST
1598     $HAVE_LIST_CMDLINE
1599     $THREADS_LIST
1600     asm
1601     cross_compile
1602     debug
1603     extra_warnings
1604     logging
1605     lto
1606     optimizations
1607     stripping
1608 "
1609
1610 PATHS_LIST='
1611     bindir
1612     datadir
1613     docdir
1614     incdir
1615     libdir
1616     mandir
1617     prefix
1618     shlibdir
1619 '
1620
1621 CMDLINE_SET="
1622     $PATHS_LIST
1623     ar
1624     arch
1625     as
1626     assert_level
1627     build_suffix
1628     cc
1629     cpu
1630     cross_prefix
1631     cxx
1632     dep_cc
1633     extra_version
1634     host_cc
1635     host_cflags
1636     host_ld
1637     host_ldflags
1638     host_libs
1639     host_os
1640     install
1641     ld
1642     logfile
1643     malloc_prefix
1644     nm
1645     optflags
1646     pkg_config
1647     progs_suffix
1648     random_seed
1649     samples
1650     strip
1651     sysinclude
1652     sysroot
1653     target_exec
1654     target_os
1655     target_path
1656     target_samples
1657     tempprefix
1658     toolchain
1659     valgrind
1660     yasmexe
1661 "
1662
1663 CMDLINE_APPEND="
1664     extra_cflags
1665     extra_cxxflags
1666     host_cppflags
1667 "
1668
1669 # code dependency declarations
1670
1671 # architecture extensions
1672
1673 armv5te_deps="arm"
1674 armv6_deps="arm"
1675 armv6t2_deps="arm"
1676 neon_deps="arm"
1677 vfp_deps="arm"
1678 vfpv3_deps="vfp"
1679
1680 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1681
1682 mipsfpu_deps="mips"
1683 mips32r2_deps="mips"
1684 mipsdspr1_deps="mips"
1685 mipsdspr2_deps="mips"
1686
1687 altivec_deps="ppc"
1688 ppc4xx_deps="ppc"
1689
1690 vis_deps="sparc"
1691
1692 cpunop_deps="i686"
1693 x86_64_select="i686"
1694 x86_64_suggest="fast_cmov"
1695
1696 amd3dnow_deps="mmx"
1697 amd3dnowext_deps="amd3dnow"
1698 mmx_deps="x86"
1699 mmxext_deps="mmx"
1700 sse_deps="mmxext"
1701 sse2_deps="sse"
1702 sse3_deps="sse2"
1703 ssse3_deps="sse3"
1704 sse4_deps="ssse3"
1705 sse42_deps="sse4"
1706 avx_deps="sse42"
1707 fma4_deps="avx"
1708
1709 mmx_external_deps="yasm"
1710 mmx_inline_deps="inline_asm"
1711 mmx_suggest="mmx_external mmx_inline"
1712
1713 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1714     eval dep=\$${ext}_deps
1715     eval ${ext}_external_deps='"${dep}_external"'
1716     eval ${ext}_inline_deps='"${dep}_inline"'
1717     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1718 done
1719
1720 aligned_stack_if_any="ppc x86"
1721 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1722 fast_clz_if_any="alpha avr32 mips ppc x86"
1723 fast_unaligned_if_any="ppc x86"
1724
1725 inline_asm_deps="!tms470"
1726 need_memalign="altivec neon sse"
1727
1728 symver_if_any="symver_asm_label symver_gnu_asm"
1729
1730 log2_deps="!msvcrt"
1731
1732 # subsystems
1733 dct_select="rdft"
1734 error_resilience_select="dsputil"
1735 frame_thread_encoder_deps="encoders threads"
1736 lpc_select="dsputil"
1737 mdct_select="fft"
1738 rdft_select="fft"
1739 mpegaudio_select="mpegaudiodsp"
1740 mpegaudiodsp_select="dct"
1741 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1742 mpegvideoenc_select="mpegvideo"
1743
1744 # decoders / encoders
1745 aac_decoder_select="mdct sinewin"
1746 aac_encoder_select="audio_frame_queue mdct sinewin"
1747 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1748 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1749 ac3_encoder_select="mdct ac3dsp dsputil"
1750 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1751 aic_decoder_select="dsputil golomb"
1752 alac_encoder_select="lpc"
1753 als_decoder_select="dsputil"
1754 amrnb_decoder_select="lsp"
1755 amrwb_decoder_select="lsp"
1756 amv_decoder_select="dsputil hpeldsp exif"
1757 amv_encoder_select="aandcttables"
1758 ape_decoder_select="dsputil"
1759 asv1_decoder_select="dsputil"
1760 asv1_encoder_select="dsputil"
1761 asv2_decoder_select="dsputil"
1762 asv2_encoder_select="dsputil"
1763 atrac1_decoder_select="mdct sinewin"
1764 atrac3_decoder_select="mdct"
1765 avrn_decoder_select="exif"
1766 bink_decoder_select="dsputil hpeldsp"
1767 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1768 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1769 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1770 cllc_decoder_select="dsputil"
1771 comfortnoise_encoder_select="lpc"
1772 cook_decoder_select="dsputil mdct sinewin"
1773 cscd_decoder_select="lzo"
1774 cscd_decoder_suggest="zlib"
1775 dca_decoder_select="mdct"
1776 dirac_decoder_select="dsputil dwt golomb videodsp"
1777 dnxhd_decoder_select="dsputil"
1778 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1779 dvvideo_decoder_select="dsputil"
1780 dvvideo_encoder_select="dsputil"
1781 dxa_decoder_select="zlib"
1782 eac3_decoder_select="ac3_decoder"
1783 eac3_encoder_select="ac3_encoder"
1784 eamad_decoder_select="aandcttables dsputil mpegvideo"
1785 eatgq_decoder_select="aandcttables"
1786 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1787 exr_decoder_select="zlib"
1788 ffv1_decoder_select="dsputil golomb rangecoder"
1789 ffv1_encoder_select="dsputil rangecoder"
1790 ffvhuff_decoder_select="dsputil"
1791 ffvhuff_encoder_select="dsputil huffman"
1792 flac_decoder_select="golomb"
1793 flac_encoder_select="dsputil golomb lpc"
1794 flashsv_decoder_select="zlib"
1795 flashsv_encoder_select="zlib"
1796 flashsv2_encoder_select="zlib"
1797 flashsv2_decoder_select="zlib"
1798 flv_decoder_select="h263_decoder"
1799 flv_encoder_select="h263_encoder"
1800 fourxm_decoder_select="dsputil"
1801 fraps_decoder_select="dsputil huffman"
1802 g2m_decoder_select="dsputil zlib"
1803 g729_decoder_select="dsputil"
1804 h261_decoder_select="error_resilience mpegvideo"
1805 h261_encoder_select="aandcttables mpegvideoenc"
1806 h263_decoder_select="error_resilience h263_parser mpegvideo"
1807 h263_encoder_select="aandcttables mpegvideoenc"
1808 h263i_decoder_select="h263_decoder"
1809 h263p_encoder_select="h263_encoder"
1810 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1811 h264_decoder_suggest="error_resilience"
1812 huffyuv_decoder_select="dsputil"
1813 huffyuv_encoder_select="dsputil huffman"
1814 iac_decoder_select="dsputil fft mdct sinewin"
1815 imc_decoder_select="dsputil fft mdct sinewin"
1816 indeo3_decoder_select="hpeldsp"
1817 interplay_video_decoder_select="hpeldsp"
1818 jpegls_decoder_select="dsputil golomb hpeldsp exif"
1819 jpegls_encoder_select="golomb"
1820 jv_decoder_select="dsputil"
1821 lagarith_decoder_select="dsputil"
1822 ljpeg_encoder_select="aandcttables mpegvideoenc"
1823 loco_decoder_select="golomb"
1824 mdec_decoder_select="dsputil error_resilience mpegvideo"
1825 metasound_decoder_select="lsp mdct sinewin"
1826 mimic_decoder_select="dsputil hpeldsp"
1827 mjpeg_decoder_select="dsputil hpeldsp exif"
1828 mjpegb_decoder_select="dsputil hpeldsp exif"
1829 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1830 mlp_decoder_select="dsputil mlp_parser"
1831 motionpixels_decoder_select="dsputil"
1832 mp1_decoder_select="mpegaudio"
1833 mp1float_decoder_select="mpegaudio"
1834 mp2_decoder_select="mpegaudio"
1835 mp2float_decoder_select="mpegaudio"
1836 mp3_decoder_select="mpegaudio"
1837 mp3adu_decoder_select="mpegaudio"
1838 mp3adufloat_decoder_select="mpegaudio"
1839 mp3float_decoder_select="mpegaudio"
1840 mp3on4_decoder_select="mpegaudio"
1841 mp3on4float_decoder_select="mpegaudio"
1842 mpc7_decoder_select="dsputil mpegaudiodsp"
1843 mpc8_decoder_select="dsputil mpegaudiodsp"
1844 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1845 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1846 mpeg1video_decoder_select="error_resilience mpegvideo"
1847 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1848 mpeg2video_decoder_select="error_resilience mpegvideo"
1849 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1850 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1851 mpeg4_encoder_select="h263_encoder"
1852 msmpeg4v1_decoder_select="h263_decoder"
1853 msmpeg4v2_decoder_select="h263_decoder"
1854 msmpeg4v2_encoder_select="h263_encoder"
1855 msmpeg4v3_decoder_select="h263_decoder"
1856 msmpeg4v3_encoder_select="h263_encoder"
1857 mss2_decoder_select="error_resilience vc1_decoder"
1858 mxpeg_decoder_select="dsputil hpeldsp exif"
1859 nellymoser_decoder_select="mdct sinewin"
1860 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1861 nuv_decoder_select="dsputil lzo"
1862 png_decoder_select="zlib"
1863 png_encoder_select="dsputil zlib"
1864 prores_decoder_select="dsputil"
1865 prores_encoder_select="dsputil"
1866 qcelp_decoder_select="lsp"
1867 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1868 ra_144_encoder_select="audio_frame_queue lpc"
1869 ralf_decoder_select="golomb"
1870 rtjpeg_decoder_select="dsputil"
1871 rv10_decoder_select="error_resilience h263_decoder"
1872 rv10_encoder_select="h263_encoder"
1873 rv20_decoder_select="error_resilience h263_decoder"
1874 rv20_encoder_select="h263_encoder"
1875 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1876 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1877 shorten_decoder_select="golomb"
1878 sipr_decoder_select="lsp"
1879 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1880 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1881 sonic_decoder_select="golomb"
1882 sonic_encoder_select="golomb"
1883 sonic_ls_encoder_select="golomb"
1884 sp5x_decoder_select="dsputil hpeldsp exif"
1885 svq1_decoder_select="hpeldsp"
1886 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1887 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1888 svq3_decoder_suggest="error_resilience zlib"
1889 tak_decoder_select="dsputil"
1890 theora_decoder_select="vp3_decoder"
1891 tiff_decoder_suggest="zlib"
1892 tiff_encoder_suggest="zlib"
1893 thp_decoder_select="dsputil hpeldsp exif"
1894 truehd_decoder_select="mlp_parser"
1895 truemotion2_decoder_select="dsputil"
1896 truespeech_decoder_select="dsputil"
1897 tscc_decoder_select="zlib"
1898 twinvq_decoder_select="mdct lsp sinewin"
1899 utvideo_decoder_select="dsputil"
1900 utvideo_encoder_select="dsputil huffman"
1901 vble_decoder_select="dsputil"
1902 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1903 vc1image_decoder_select="vc1_decoder"
1904 vorbis_decoder_select="mdct"
1905 vorbis_encoder_select="mdct"
1906 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1907 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1908 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1909 vp6a_decoder_select="vp6_decoder"
1910 vp6f_decoder_select="vp6_decoder"
1911 vp8_decoder_select="h264pred videodsp"
1912 vp9_decoder_select="videodsp"
1913 webp_decoder_select="vp8_decoder"
1914 wmapro_decoder_select="mdct sinewin"
1915 wmav1_decoder_select="mdct sinewin"
1916 wmav1_encoder_select="mdct sinewin"
1917 wmav2_decoder_select="mdct sinewin"
1918 wmav2_encoder_select="mdct sinewin"
1919 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1920 wmv1_decoder_select="h263_decoder"
1921 wmv1_encoder_select="h263_encoder"
1922 wmv2_decoder_select="h263_decoder videodsp"
1923 wmv2_encoder_select="h263_encoder"
1924 wmv3_decoder_select="vc1_decoder"
1925 wmv3image_decoder_select="wmv3_decoder"
1926 zerocodec_decoder_select="zlib"
1927 zlib_decoder_select="zlib"
1928 zlib_encoder_select="zlib"
1929 zmbv_decoder_select="zlib"
1930 zmbv_encoder_select="zlib"
1931
1932 # hardware accelerators
1933 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1934 dxva2_deps="dxva2api_h"
1935 vaapi_deps="va_va_h"
1936 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1937 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1938 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1939
1940 h263_vaapi_hwaccel_deps="vaapi"
1941 h263_vaapi_hwaccel_select="h263_decoder"
1942 h263_vdpau_hwaccel_deps="vdpau"
1943 h263_vdpau_hwaccel_select="h263_decoder"
1944 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1945 h264_dxva2_hwaccel_deps="dxva2"
1946 h264_dxva2_hwaccel_select="h264_decoder"
1947 h264_vaapi_hwaccel_deps="vaapi"
1948 h264_vaapi_hwaccel_select="h264_decoder"
1949 h264_vda_decoder_deps="vda"
1950 h264_vda_decoder_select="h264_decoder"
1951 h264_vda_hwaccel_deps="vda"
1952 h264_vda_hwaccel_select="h264_decoder"
1953 h264_vdpau_decoder_deps="vdpau"
1954 h264_vdpau_decoder_select="h264_decoder"
1955 h264_vdpau_hwaccel_deps="vdpau"
1956 h264_vdpau_hwaccel_select="h264_decoder"
1957 mpeg_vdpau_decoder_deps="vdpau"
1958 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1959 mpeg1_vdpau_decoder_deps="vdpau"
1960 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1961 mpeg1_vdpau_hwaccel_deps="vdpau"
1962 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1963 mpeg2_crystalhd_decoder_select="crystalhd"
1964 mpeg2_dxva2_hwaccel_deps="dxva2"
1965 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1966 mpeg2_vaapi_hwaccel_deps="vaapi"
1967 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1968 mpeg2_vdpau_hwaccel_deps="vdpau"
1969 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1970 mpeg4_crystalhd_decoder_select="crystalhd"
1971 mpeg4_vaapi_hwaccel_deps="vaapi"
1972 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1973 mpeg4_vdpau_decoder_deps="vdpau"
1974 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1975 mpeg4_vdpau_hwaccel_deps="vdpau"
1976 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1977 msmpeg4_crystalhd_decoder_select="crystalhd"
1978 vc1_crystalhd_decoder_select="crystalhd"
1979 vc1_dxva2_hwaccel_deps="dxva2"
1980 vc1_dxva2_hwaccel_select="vc1_decoder"
1981 vc1_vaapi_hwaccel_deps="vaapi"
1982 vc1_vaapi_hwaccel_select="vc1_decoder"
1983 vc1_vdpau_decoder_deps="vdpau"
1984 vc1_vdpau_decoder_select="vc1_decoder"
1985 vc1_vdpau_hwaccel_deps="vdpau"
1986 vc1_vdpau_hwaccel_select="vc1_decoder"
1987 wmv3_crystalhd_decoder_select="crystalhd"
1988 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1989 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1990 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1991 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1992
1993 # parsers
1994 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1995 mpeg4video_parser_select="error_resilience mpegvideo"
1996 mpegvideo_parser_select="error_resilience mpegvideo"
1997 vc1_parser_select="mpegvideo"
1998
1999 # external libraries
2000 libaacplus_encoder_deps="libaacplus"
2001 libcelt_decoder_deps="libcelt"
2002 libfaac_encoder_deps="libfaac"
2003 libfaac_encoder_select="audio_frame_queue"
2004 libfdk_aac_decoder_deps="libfdk_aac"
2005 libfdk_aac_encoder_deps="libfdk_aac"
2006 libfdk_aac_encoder_select="audio_frame_queue"
2007 libgme_demuxer_deps="libgme"
2008 libgsm_decoder_deps="libgsm"
2009 libgsm_encoder_deps="libgsm"
2010 libgsm_ms_decoder_deps="libgsm"
2011 libgsm_ms_encoder_deps="libgsm"
2012 libilbc_decoder_deps="libilbc"
2013 libilbc_encoder_deps="libilbc"
2014 libmodplug_demuxer_deps="libmodplug"
2015 libmp3lame_encoder_deps="libmp3lame"
2016 libmp3lame_encoder_select="audio_frame_queue"
2017 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2018 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2019 libopencore_amrnb_encoder_select="audio_frame_queue"
2020 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2021 libopenjpeg_decoder_deps="libopenjpeg"
2022 libopenjpeg_encoder_deps="libopenjpeg"
2023 libopus_decoder_deps="libopus"
2024 libopus_encoder_deps="libopus"
2025 libopus_encoder_select="audio_frame_queue"
2026 libquvi_demuxer_deps="libquvi"
2027 libschroedinger_decoder_deps="libschroedinger"
2028 libschroedinger_encoder_deps="libschroedinger"
2029 libshine_encoder_deps="libshine"
2030 libshine_encoder_select="audio_frame_queue"
2031 libspeex_decoder_deps="libspeex"
2032 libspeex_encoder_deps="libspeex"
2033 libspeex_encoder_select="audio_frame_queue"
2034 libstagefright_h264_decoder_deps="libstagefright_h264"
2035 libtheora_encoder_deps="libtheora"
2036 libtwolame_encoder_deps="libtwolame"
2037 libvo_aacenc_encoder_deps="libvo_aacenc"
2038 libvo_aacenc_encoder_select="audio_frame_queue"
2039 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2040 libvorbis_decoder_deps="libvorbis"
2041 libvorbis_encoder_deps="libvorbis"
2042 libvorbis_encoder_select="audio_frame_queue"
2043 libvpx_vp8_decoder_deps="libvpx"
2044 libvpx_vp8_encoder_deps="libvpx"
2045 libvpx_vp9_decoder_deps="libvpx"
2046 libvpx_vp9_encoder_deps="libvpx"
2047 libwavpack_encoder_deps="libwavpack"
2048 libx264_encoder_deps="libx264"
2049 libx264rgb_encoder_deps="libx264"
2050 libxavs_encoder_deps="libxavs"
2051 libxvid_encoder_deps="libxvid"
2052 libutvideo_decoder_deps="libutvideo"
2053 libutvideo_encoder_deps="libutvideo"
2054 libzvbi_teletext_decoder_deps="libzvbi"
2055
2056 # demuxers / muxers
2057 ac3_demuxer_select="ac3_parser"
2058 asf_demuxer_select="riffdec"
2059 asf_muxer_select="riffenc"
2060 asf_stream_muxer_select="asf_muxer"
2061 avi_demuxer_select="riffdec"
2062 avi_muxer_select="riffenc"
2063 avisynth_demuxer_deps="avisynth"
2064 avisynth_demuxer_select="riffdec"
2065 caf_demuxer_select="riffdec"
2066 dirac_demuxer_select="dirac_parser"
2067 dts_demuxer_select="dca_parser"
2068 dtshd_demuxer_select="dca_parser"
2069 dxa_demuxer_select="riffdec"
2070 eac3_demuxer_select="ac3_parser"
2071 f4v_muxer_select="mov_muxer"
2072 flac_demuxer_select="flac_parser"
2073 hls_muxer_select="mpegts_muxer"
2074 ipod_muxer_select="mov_muxer"
2075 ismv_muxer_select="mov_muxer"
2076 libnut_demuxer_deps="libnut"
2077 libnut_muxer_deps="libnut"
2078 matroska_audio_muxer_select="matroska_muxer"
2079 matroska_demuxer_select="riffdec"
2080 matroska_demuxer_suggest="bzlib lzo zlib"
2081 matroska_muxer_select="riffenc"
2082 mmf_muxer_select="riffenc"
2083 mov_demuxer_select="riffdec"
2084 mov_demuxer_suggest="zlib"
2085 mov_muxer_select="riffenc rtpenc_chain"
2086 mp3_demuxer_select="mpegaudio_parser"
2087 mp4_muxer_select="mov_muxer"
2088 mpegts_muxer_select="adts_muxer latm_muxer"
2089 mpegtsraw_demuxer_select="mpegts_demuxer"
2090 mxf_d10_muxer_select="mxf_muxer"
2091 nut_muxer_select="riffenc"
2092 nuv_demuxer_select="riffdec"
2093 ogg_demuxer_select="golomb"
2094 psp_muxer_select="mov_muxer"
2095 rtp_demuxer_select="sdp_demuxer"
2096 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2097 rtsp_demuxer_select="http_protocol rtpdec"
2098 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2099 sap_demuxer_select="sdp_demuxer"
2100 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2101 sdp_demuxer_select="rtpdec"
2102 smoothstreaming_muxer_select="ismv_muxer"
2103 spdif_muxer_select="aac_parser"
2104 tak_demuxer_select="tak_parser"
2105 tg2_muxer_select="mov_muxer"
2106 tgp_muxer_select="mov_muxer"
2107 vobsub_demuxer_select="mpegps_demuxer"
2108 w64_demuxer_select="wav_demuxer"
2109 w64_muxer_select="wav_muxer"
2110 wav_demuxer_select="riffdec"
2111 wav_muxer_select="riffenc"
2112 webm_muxer_select="riffenc"
2113 wtv_demuxer_select="riffdec"
2114 xmv_demuxer_select="riffdec"
2115 xwma_demuxer_select="riffdec"
2116
2117 # indevs / outdevs
2118 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2119 alsa_outdev_deps="alsa_asoundlib_h"
2120 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2121 caca_outdev_deps="libcaca"
2122 dshow_indev_deps="IBaseFilter"
2123 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2124 dv1394_indev_deps="dv1394"
2125 dv1394_indev_select="dv_demuxer"
2126 fbdev_indev_deps="linux_fb_h"
2127 iec61883_indev_deps="libiec61883"
2128 jack_indev_deps="jack_jack_h sem_timedwait"
2129 lavfi_indev_deps="avfilter"
2130 libcdio_indev_deps="libcdio"
2131 libdc1394_indev_deps="libdc1394"
2132 libv4l2_indev_deps="libv4l2"
2133 openal_indev_deps="openal"
2134 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2135 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2136 pulse_indev_deps="libpulse"
2137 pulse_outdev_deps="libpulse"
2138 sdl_outdev_deps="sdl"
2139 sndio_indev_deps="sndio_h"
2140 sndio_outdev_deps="sndio_h"
2141 v4l_indev_deps="linux_videodev_h"
2142 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2143 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2144 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2145 vfwcap_indev_extralibs="-lavicap32"
2146 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2147 xv_outdev_extralibs="-lXv -lX11 -lXext"
2148 x11grab_indev_deps="x11grab"
2149
2150 # protocols
2151 bluray_protocol_deps="libbluray"
2152 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2153 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2154 ffrtmpcrypt_protocol_select="tcp_protocol"
2155 ffrtmphttp_protocol_deps="!librtmp_protocol"
2156 ffrtmphttp_protocol_select="http_protocol"
2157 ftp_protocol_select="tcp_protocol"
2158 gopher_protocol_select="network"
2159 httpproxy_protocol_select="tcp_protocol"
2160 http_protocol_select="tcp_protocol"
2161 https_protocol_select="tls_protocol"
2162 librtmp_protocol_deps="librtmp"
2163 librtmpe_protocol_deps="librtmp"
2164 librtmps_protocol_deps="librtmp"
2165 librtmpt_protocol_deps="librtmp"
2166 librtmpte_protocol_deps="librtmp"
2167 libssh_protocol_deps="libssh"
2168 mmsh_protocol_select="http_protocol"
2169 mmst_protocol_select="network"
2170 rtmp_protocol_deps="!librtmp_protocol"
2171 rtmp_protocol_select="tcp_protocol"
2172 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2173 rtmps_protocol_deps="!librtmp_protocol"
2174 rtmps_protocol_select="tls_protocol"
2175 rtmpt_protocol_select="ffrtmphttp_protocol"
2176 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2177 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2178 rtp_protocol_select="udp_protocol"
2179 sctp_protocol_deps="struct_sctp_event_subscribe"
2180 sctp_protocol_select="network"
2181 srtp_protocol_select="rtp_protocol"
2182 tcp_protocol_select="network"
2183 tls_protocol_deps_any="openssl gnutls"
2184 tls_protocol_select="tcp_protocol"
2185 udp_protocol_select="network"
2186 unix_protocol_deps="sys_un_h"
2187 unix_protocol_select="network"
2188
2189 # filters
2190 aconvert_filter_deps="swresample"
2191 amovie_filter_deps="avcodec avformat"
2192 aresample_filter_deps="swresample"
2193 ass_filter_deps="libass"
2194 asyncts_filter_deps="avresample"
2195 atempo_filter_deps="avcodec"
2196 atempo_filter_select="rdft"
2197 azmq_filter_deps="libzmq"
2198 blackframe_filter_deps="gpl"
2199 boxblur_filter_deps="gpl"
2200 colormatrix_filter_deps="gpl"
2201 cropdetect_filter_deps="gpl"
2202 dctdnoiz_filter_deps="avcodec"
2203 dctdnoiz_filter_select="fft"
2204 delogo_filter_deps="gpl"
2205 deshake_filter_deps="avcodec"
2206 deshake_filter_select="dsputil"
2207 drawtext_filter_deps="libfreetype"
2208 ebur128_filter_deps="gpl"
2209 flite_filter_deps="libflite"
2210 frei0r_filter_deps="frei0r dlopen"
2211 frei0r_filter_extralibs='$ldl'
2212 frei0r_src_filter_deps="frei0r dlopen"
2213 frei0r_src_filter_extralibs='$ldl'
2214 geq_filter_deps="gpl"
2215 histeq_filter_deps="gpl"
2216 hqdn3d_filter_deps="gpl"
2217 interlace_filter_deps="gpl"
2218 kerndeint_filter_deps="gpl"
2219 ladspa_filter_deps="ladspa dlopen"
2220 mcdeint_filter_deps="avcodec gpl"
2221 movie_filter_deps="avcodec avformat"
2222 mp_filter_deps="gpl avcodec swscale inline_asm"
2223 mpdecimate_filter_deps="gpl avcodec"
2224 mptestsrc_filter_deps="gpl"
2225 negate_filter_deps="lut_filter"
2226 noise_filter_deps="gpl"
2227 perspective_filter_deps="gpl"
2228 resample_filter_deps="avresample"
2229 ocv_filter_deps="libopencv"
2230 owdenoise_filter_deps="gpl"
2231 pan_filter_deps="swresample"
2232 phase_filter_deps="gpl"
2233 pp_filter_deps="gpl postproc"
2234 pullup_filter_deps="gpl"
2235 removelogo_filter_deps="avcodec avformat swscale"
2236 sab_filter_deps="gpl swscale"
2237 scale_filter_deps="swscale"
2238 smartblur_filter_deps="gpl swscale"
2239 showspectrum_filter_deps="avcodec"
2240 showspectrum_filter_select="rdft"
2241 spp_filter_deps="gpl avcodec"
2242 spp_filter_select="fft"
2243 stereo3d_filter_deps="gpl"
2244 subtitles_filter_deps="avformat avcodec libass"
2245 super2xsai_filter_deps="gpl"
2246 tinterlace_filter_deps="gpl"
2247 vidstabdetect_filter_deps="libvidstab"
2248 vidstabtransform_filter_deps="libvidstab"
2249 yadif_filter_deps="gpl"
2250 pixfmts_super2xsai_test_deps="super2xsai_filter"
2251 tinterlace_merge_test_deps="tinterlace_filter"
2252 tinterlace_pad_test_deps="tinterlace_filter"
2253 zmq_filter_deps="libzmq"
2254
2255 # libraries
2256 avcodec_deps="avutil"
2257 avdevice_deps="avutil avcodec avformat"
2258 avfilter_deps="avutil"
2259 avformat_deps="avutil avcodec"
2260 avresample_deps="avutil"
2261 postproc_deps="avutil gpl"
2262 swscale_deps="avutil"
2263
2264 # programs
2265 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2266 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2267                null_filter
2268                setpts_filter trim_filter"
2269 ffplay_deps="avcodec avformat swscale swresample sdl"
2270 ffplay_select="rdft crop_filter"
2271 ffprobe_deps="avcodec avformat"
2272 ffserver_deps="avformat fork sarestart"
2273 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2274 ffserver_extralibs='$ldl'
2275
2276 # documentation
2277 podpages_deps="perl"
2278 manpages_deps="perl pod2man"
2279 htmlpages_deps="texi2html"
2280 txtpages_deps="makeinfo"
2281 doc_deps_any="manpages htmlpages podpages txtpages"
2282
2283 # default parameters
2284
2285 logfile="config.log"
2286
2287 # installation paths
2288 prefix_default="/usr/local"
2289 bindir_default='${prefix}/bin'
2290 datadir_default='${prefix}/share/ffmpeg'
2291 docdir_default='${prefix}/share/doc/ffmpeg'
2292 incdir_default='${prefix}/include'
2293 libdir_default='${prefix}/lib'
2294 mandir_default='${prefix}/share/man'
2295 shlibdir_default="$libdir_default"
2296
2297 # toolchain
2298 ar_default="ar"
2299 cc_default="gcc"
2300 cxx_default="g++"
2301 host_cc_default="gcc"
2302 cp_f="cp -f"
2303 install="install"
2304 ln_s="ln -s -f"
2305 nm_default="nm -g"
2306 objformat="elf"
2307 pkg_config_default=pkg-config
2308 ranlib="ranlib"
2309 strip_default="strip"
2310 yasmexe_default="yasm"
2311
2312 nogas=":"
2313
2314 # machine
2315 arch_default=$(uname -m)
2316 cpu="generic"
2317
2318 # OS
2319 target_os_default=$(tolower $(uname -s))
2320 host_os=$target_os_default
2321
2322 # configurable options
2323 enable $PROGRAM_LIST
2324 enable $DOCUMENT_LIST
2325 enable $(filter_out avresample $LIBRARY_LIST)
2326 enable stripping
2327
2328 enable asm
2329 enable debug
2330 enable doc
2331 enable optimizations
2332 enable runtime_cpudetect
2333 enable safe_bitstream_reader
2334 enable static
2335 enable swscale_alpha
2336
2337 # Enable hwaccels by default.
2338 enable dxva2 vaapi vdpau
2339
2340 # build settings
2341 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2342 LIBPREF="lib"
2343 LIBSUF=".a"
2344 FULLNAME='$(NAME)$(BUILDSUF)'
2345 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2346 SLIBPREF="lib"
2347 SLIBSUF=".so"
2348 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2349 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2350 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2351 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2352 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2353 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2354
2355 asflags_filter=echo
2356 cflags_filter=echo
2357 ldflags_filter=echo
2358
2359 AS_C='-c'
2360 AS_O='-o $@'
2361 CC_C='-c'
2362 CC_E='-E -o $@'
2363 CC_O='-o $@'
2364 CXX_C='-c'
2365 CXX_O='-o $@'
2366 LD_O='-o $@'
2367 LD_LIB='-l%'
2368 LD_PATH='-L'
2369 HOSTCC_C='-c'
2370 HOSTCC_O='-o $@'
2371 HOSTLD_O='-o $@'
2372
2373 host_cflags='-O3 -g'
2374 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2375 host_libs='-lm'
2376 host_cflags_filter=echo
2377 host_ldflags_filter=echo
2378
2379 target_path='$(CURDIR)'
2380
2381 # since the object filename is not given with the -MM flag, the compiler
2382 # is only able to print the basename, and we must add the path ourselves
2383 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2384 DEPFLAGS='-MM'
2385
2386 # find source path
2387 if test -f configure; then
2388     source_path=.
2389 else
2390     source_path=$(cd $(dirname "$0"); pwd)
2391     echo "$source_path" | grep -q '[[:blank:]]' &&
2392         die "Out of tree builds are impossible with whitespace in source path."
2393     test -e "$source_path/config.h" &&
2394         die "Out of tree builds are impossible with config.h in source dir."
2395 fi
2396
2397 for v in "$@"; do
2398     r=${v#*=}
2399     l=${v%"$r"}
2400     r=$(sh_quote "$r")
2401     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2402 done
2403
2404 find_things(){
2405     thing=$1
2406     pattern=$2
2407     file=$source_path/$3
2408     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2409 }
2410
2411 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2412 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2413 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2414 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2415 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2416 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2417 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2418 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2419 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2420 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2421 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2422
2423 ALL_COMPONENTS="
2424     $BSF_LIST
2425     $DECODER_LIST
2426     $DEMUXER_LIST
2427     $ENCODER_LIST
2428     $FILTER_LIST
2429     $HWACCEL_LIST
2430     $INDEV_LIST
2431     $MUXER_LIST
2432     $OUTDEV_LIST
2433     $PARSER_LIST
2434     $PROTOCOL_LIST
2435 "
2436
2437 for n in $COMPONENT_LIST; do
2438     v=$(toupper ${n%s})_LIST
2439     eval enable \$$v
2440     eval ${n}_if_any="\$$v"
2441 done
2442
2443 enable $ARCH_EXT_LIST
2444
2445 die_unknown(){
2446     echo "Unknown option \"$1\"."
2447     echo "See $0 --help for available options."
2448     exit 1
2449 }
2450
2451 print_3_columns() {
2452     cat | tr ' ' '\n' | sort | pr -r -3 -t
2453 }
2454
2455 show_list() {
2456     suffix=_$1
2457     shift
2458     echo $* | sed s/$suffix//g | print_3_columns
2459     exit 0
2460 }
2461
2462 rand_list(){
2463     IFS=', '
2464     set -- $*
2465     unset IFS
2466     for thing; do
2467         comp=${thing%:*}
2468         prob=${thing#$comp}
2469         prob=${prob#:}
2470         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2471         echo "prob ${prob:-0.5}"
2472         printf '%s\n' $comp
2473     done
2474 }
2475
2476 do_random(){
2477     action=$1
2478     shift
2479     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2480     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2481 }
2482
2483 for opt do
2484     optval="${opt#*=}"
2485     case "$opt" in
2486         --extra-ldflags=*)
2487             add_ldflags $optval
2488         ;;
2489         --extra-libs=*)
2490             add_extralibs $optval
2491         ;;
2492         --disable-devices)
2493             disable $INDEV_LIST $OUTDEV_LIST
2494         ;;
2495         --enable-debug=*)
2496             debuglevel="$optval"
2497         ;;
2498         --disable-programs)
2499             disable $PROGRAM_LIST
2500         ;;
2501         --disable-everything)
2502             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2503         ;;
2504         --disable-all)
2505             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2506             disable $LIBRARY_LIST $PROGRAM_LIST doc
2507         ;;
2508         --enable-random|--disable-random)
2509             action=${opt%%-random}
2510             do_random ${action#--} $COMPONENT_LIST
2511         ;;
2512         --enable-random=*|--disable-random=*)
2513             action=${opt%%-random=*}
2514             do_random ${action#--} $optval
2515         ;;
2516         --enable-*=*|--disable-*=*)
2517             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2518             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2519             eval list=\$$(toupper $thing)_LIST
2520             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2521             list=$(filter "$name" $list)
2522             [ "$list" = "" ] && warn "Option $opt did not match anything"
2523             $action $list
2524         ;;
2525         --enable-?*|--disable-?*)
2526             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2527             if is_in $option $COMPONENT_LIST; then
2528                 test $action = disable && action=unset
2529                 eval $action \$$(toupper ${option%s})_LIST
2530             elif is_in $option $CMDLINE_SELECT; then
2531                 $action $option
2532             else
2533                 die_unknown $opt
2534             fi
2535         ;;
2536         --list-*)
2537             NAME="${opt#--list-}"
2538             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2539             NAME=${NAME%s}
2540             eval show_list $NAME \$$(toupper $NAME)_LIST
2541         ;;
2542         --help|-h) show_help
2543         ;;
2544         --fatal-warnings) enable fatal_warnings
2545         ;;
2546         *)
2547             optname="${opt%%=*}"
2548             optname="${optname#--}"
2549             optname=$(echo "$optname" | sed 's/-/_/g')
2550             if is_in $optname $CMDLINE_SET; then
2551                 eval $optname='$optval'
2552             elif is_in $optname $CMDLINE_APPEND; then
2553                 append $optname "$optval"
2554             else
2555                 die_unknown $opt
2556             fi
2557         ;;
2558     esac
2559 done
2560
2561 disabled logging && logfile=/dev/null
2562
2563 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2564 set >> $logfile
2565
2566 test -n "$cross_prefix" && enable cross_compile
2567
2568 if enabled cross_compile; then
2569     test -n "$arch" && test -n "$target_os" ||
2570         die "Must specify target arch and OS when cross-compiling"
2571 fi
2572
2573 ar_default="${cross_prefix}${ar_default}"
2574 cc_default="${cross_prefix}${cc_default}"
2575 cxx_default="${cross_prefix}${cxx_default}"
2576 nm_default="${cross_prefix}${nm_default}"
2577 pkg_config_default="${cross_prefix}${pkg_config_default}"
2578 ranlib="${cross_prefix}${ranlib}"
2579 strip_default="${cross_prefix}${strip_default}"
2580
2581 sysinclude_default="${sysroot}/usr/include"
2582
2583 test -n "$valgrind" && toolchain="valgrind-memcheck"
2584
2585 case "$toolchain" in
2586     clang-asan)
2587         cc_default="clang"
2588         add_cflags  -fsanitize=address
2589         add_ldflags -fsanitize=address
2590     ;;
2591     clang-tsan)
2592         cc_default="clang"
2593         add_cflags  -fsanitize=thread -pie
2594         add_ldflags -fsanitize=thread -pie
2595     ;;
2596     gcc-asan)
2597         cc_default="gcc"
2598         add_cflags  -fsanitize=address
2599         add_ldflags -fsanitize=address
2600     ;;
2601     gcc-tsan)
2602         cc_default="gcc"
2603         add_cflags  -fsanitize=thread -pie -fPIC
2604         add_ldflags -fsanitize=thread -pie -fPIC
2605     ;;
2606     valgrind-massif)
2607         target_exec_default=${valgrind:-"valgrind"}
2608         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"
2609     ;;
2610     valgrind-memcheck)
2611         target_exec_default=${valgrind:-"valgrind"}
2612         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2613     ;;
2614     msvc)
2615         cc_default="c99wrap cl"
2616         ld_default="c99wrap link"
2617         nm_default="dumpbin -symbols"
2618         ar_default="lib"
2619         target_os_default="win32"
2620     ;;
2621     icl)
2622         cc_default="c99wrap -noconv icl"
2623         ld_default="c99wrap xilink"
2624         nm_default="dumpbin -symbols"
2625         ar_default="xilib"
2626         target_os_default="win32"
2627     ;;
2628     gcov)
2629         add_cflags  -fprofile-arcs -ftest-coverage
2630         add_ldflags -fprofile-arcs -ftest-coverage
2631     ;;
2632     ?*)
2633         die "Unknown toolchain $toolchain"
2634     ;;
2635 esac
2636
2637 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2638 enabled cross_compile || host_cc_default=$cc
2639 set_default host_cc
2640
2641 if ! $pkg_config --version >/dev/null 2>&1; then
2642     warn "$pkg_config not found, library detection may fail."
2643     pkg_config=false
2644 fi
2645
2646 exesuf() {
2647     case $1 in
2648         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2649     esac
2650 }
2651
2652 EXESUF=$(exesuf $target_os)
2653 HOSTEXESUF=$(exesuf $host_os)
2654
2655 # set temporary file name
2656 : ${TMPDIR:=$TEMPDIR}
2657 : ${TMPDIR:=$TMP}
2658 : ${TMPDIR:=/tmp}
2659
2660 if [ -n "$tempprefix" ] ; then
2661     mktemp(){
2662         echo $tempprefix.${HOSTNAME}.${UID}
2663     }
2664 elif ! check_cmd mktemp -u XXXXXX; then
2665     # simple replacement for missing mktemp
2666     # NOT SAFE FOR GENERAL USE
2667     mktemp(){
2668         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2669     }
2670 fi
2671
2672 tmpfile(){
2673     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2674         (set -C; exec > $tmp) 2>/dev/null ||
2675         die "Unable to create temporary file in $TMPDIR."
2676     append TMPFILES $tmp
2677     eval $1=$tmp
2678 }
2679
2680 trap 'rm -f -- $TMPFILES' EXIT
2681
2682 tmpfile TMPASM .asm
2683 tmpfile TMPC   .c
2684 tmpfile TMPCPP .cpp
2685 tmpfile TMPE   $EXESUF
2686 tmpfile TMPH   .h
2687 tmpfile TMPO   .o
2688 tmpfile TMPS   .S
2689 tmpfile TMPSH  .sh
2690 tmpfile TMPV   .ver
2691
2692 unset -f mktemp
2693
2694 chmod +x $TMPE
2695
2696 # make sure we can execute files in $TMPDIR
2697 cat > $TMPSH 2>> $logfile <<EOF
2698 #! /bin/sh
2699 EOF
2700 chmod +x $TMPSH >> $logfile 2>&1
2701 if ! $TMPSH >> $logfile 2>&1; then
2702     cat <<EOF
2703 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2704 variable to another directory and make sure that it is not mounted noexec.
2705 EOF
2706     die "Sanity test failed."
2707 fi
2708
2709 ccc_flags(){
2710     for flag; do
2711         case $flag in
2712             -std=c99)           echo -c99                       ;;
2713             -mcpu=*)            echo -arch ${flag#*=}           ;;
2714             -mieee)             echo -ieee                      ;;
2715             -O*|-fast)          echo $flag                      ;;
2716             -fno-math-errno)    echo -assume nomath_errno       ;;
2717             -g)                 echo -g3                        ;;
2718             -Wall)              echo -msg_enable level2         ;;
2719             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2720             -Wl,*)              echo $flag                      ;;
2721             -f*|-W*)                                            ;;
2722             *)                  echo $flag                      ;;
2723         esac
2724    done
2725 }
2726
2727 cparser_flags(){
2728     for flag; do
2729         case $flag in
2730             -Wno-switch)             echo -Wno-switch-enum ;;
2731             -Wno-format-zero-length) ;;
2732             -Wdisabled-optimization) ;;
2733             -Wno-pointer-sign)       echo -Wno-other ;;
2734             *)                       echo $flag ;;
2735         esac
2736     done
2737 }
2738
2739 msvc_common_flags(){
2740     for flag; do
2741         case $flag in
2742             # In addition to specifying certain flags under the compiler
2743             # specific filters, they must be specified here as well or else the
2744             # generic catch all at the bottom will print the original flag.
2745             -Wall)                ;;
2746             -std=c99)             ;;
2747             # Common flags
2748             -fomit-frame-pointer) ;;
2749             -g)                   echo -Z7 ;;
2750             -fno-math-errno)      ;;
2751             -fno-common)          ;;
2752             -fno-signed-zeros)    ;;
2753             -fPIC)                ;;
2754             -mthumb)              ;;
2755             -march=*)             ;;
2756             -lz)                  echo zlib.lib ;;
2757             -lavifil32)           echo vfw32.lib ;;
2758             -lavicap32)           echo vfw32.lib user32.lib ;;
2759             -l*)                  echo ${flag#-l}.lib ;;
2760             *)                    echo $flag ;;
2761         esac
2762     done
2763 }
2764
2765 msvc_flags(){
2766     msvc_common_flags "$@"
2767     for flag; do
2768         case $flag in
2769             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2770                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2771                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2772                                        -wd4554 \
2773                                        -wd4273 ;;
2774         esac
2775     done
2776 }
2777
2778 icl_flags(){
2779     msvc_common_flags "$@"
2780     for flag; do
2781         case $flag in
2782             # Despite what Intel's documentation says -Wall, which is supported
2783             # on Windows, does enable remarks so disable them here.
2784             -Wall)                echo $flag -Qdiag-disable:remark ;;
2785             -std=c99)             echo -Qstd=c99 ;;
2786         esac
2787     done
2788 }
2789
2790 pgi_flags(){
2791     for flag; do
2792         case $flag in
2793             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2794             -fomit-frame-pointer) echo -Mnoframe ;;
2795             -g)                   echo -gopt ;;
2796             *)                    echo $flag ;;
2797         esac
2798     done
2799 }
2800
2801 suncc_flags(){
2802     for flag; do
2803         case $flag in
2804             -march=*|-mcpu=*)
2805                 case "${flag#*=}" in
2806                     native)                   echo -xtarget=native       ;;
2807                     v9|niagara)               echo -xarch=sparc          ;;
2808                     ultrasparc)               echo -xarch=sparcvis       ;;
2809                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2810                     i586|pentium)             echo -xchip=pentium        ;;
2811                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2812                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2813                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2814                     pentium4*)          echo -xtarget=pentium4           ;;
2815                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2816                     *-sse3)             echo -xarch=sse3                 ;;
2817                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2818                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2819                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2820                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2821                     bdver*)                    echo -xarch=avx           ;;
2822                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2823                     k8|opteron|athlon64|athlon-fx)
2824                                                echo -xarch=sse2a         ;;
2825                     athlon*)                   echo -xarch=pentium_proa  ;;
2826                 esac
2827                 ;;
2828             -std=c99)             echo -xc99              ;;
2829             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2830             -fPIC)                echo -KPIC -xcode=pic32 ;;
2831             -W*,*)                echo $flag              ;;
2832             -f*-*|-W*|-mimpure-text)                      ;;
2833             -shared)              echo -G                 ;;
2834             *)                    echo $flag              ;;
2835         esac
2836     done
2837 }
2838
2839 tms470_flags(){
2840     for flag; do
2841         case $flag in
2842             -march=*|-mcpu=*)
2843                 case "${flag#*=}" in
2844                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2845                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2846                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2847                     armv6*|arm11*)          echo -mv=6   ;;
2848                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2849                                             echo -mv=5e  ;;
2850                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2851                 esac
2852                 ;;
2853             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2854             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2855             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2856             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2857             -msoft-float)   echo --float_support=vfplib       ;;
2858             -O[0-3]|-mf=*)  echo $flag                        ;;
2859             -g)             echo -g -mn                       ;;
2860             -pds=*)         echo $flag                        ;;
2861             -D*|-I*)        echo $flag                        ;;
2862             --gcc|--abi=*)  echo $flag                        ;;
2863             -me)            echo $flag                        ;;
2864         esac
2865     done
2866 }
2867
2868 probe_cc(){
2869     pfx=$1
2870     _cc=$2
2871
2872     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2873     unset _ld_o _ldflags _ld_lib _ld_path
2874     unset _depflags _DEPCMD _DEPFLAGS
2875     _flags_filter=echo
2876
2877     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2878         _type=llvm_gcc
2879         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2880         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2881         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2882         _cflags_speed='-O3'
2883         _cflags_size='-Os'
2884     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2885         _type=gcc
2886         gcc_version=$($_cc --version | head -n1)
2887         gcc_basever=$($_cc -dumpversion)
2888         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2889         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2890         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2891         if ! $_cc -dumpversion | grep -q '^2\.'; then
2892             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2893         fi
2894         _cflags_speed='-O3'
2895         _cflags_size='-Os'
2896     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2897         _type=icc
2898         _ident=$($_cc --version | head -n1)
2899         _depflags='-MMD'
2900         _cflags_speed='-O3'
2901         _cflags_size='-Os'
2902         _cflags_noopt='-O1'
2903     elif $_cc -v 2>&1 | grep -q xlc; then
2904         _type=xlc
2905         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2906         _cflags_speed='-O5'
2907         _cflags_size='-O5 -qcompact'
2908     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2909         _type=ccc
2910         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2911         _DEPFLAGS='-M'
2912         _cflags_speed='-fast'
2913         _cflags_size='-O1'
2914         _flags_filter=ccc_flags
2915     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2916         test -d "$sysroot" || die "No valid sysroot specified."
2917         _type=armcc
2918         _ident=$($_cc --vsn | head -n1)
2919         armcc_conf="$PWD/armcc.conf"
2920         $_cc --arm_linux_configure                 \
2921              --arm_linux_config_file="$armcc_conf" \
2922              --configure_sysroot="$sysroot"        \
2923              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2924              die "Error creating armcc configuration file."
2925         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2926         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2927         as_default="${cross_prefix}gcc"
2928         _depflags='-MMD'
2929         _cflags_speed='-O3'
2930         _cflags_size='-Os'
2931     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2932         _type=tms470
2933         _ident=$($_cc -version | head -n1 | tr -s ' ')
2934         _flags='--gcc --abi=eabi -me'
2935         _cc_e='-ppl -fe=$@'
2936         _cc_o='-fe=$@'
2937         _depflags='-ppa -ppd=$(@:.o=.d)'
2938         _cflags_speed='-O3 -mf=5'
2939         _cflags_size='-O3 -mf=2'
2940         _flags_filter=tms470_flags
2941     elif $_cc -v 2>&1 | grep -q clang; then
2942         _type=clang
2943         _ident=$($_cc --version | head -n1)
2944         _depflags='-MMD'
2945         _cflags_speed='-O3'
2946         _cflags_size='-Os'
2947     elif $_cc -V 2>&1 | grep -q Sun; then
2948         _type=suncc
2949         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2950         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2951         _DEPFLAGS='-xM1 -xc99'
2952         _ldflags='-std=c99'
2953         _cflags_speed='-O5'
2954         _cflags_size='-O5 -xspace'
2955         _flags_filter=suncc_flags
2956     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2957         _type=pathscale
2958         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2959         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2960         _cflags_speed='-O2'
2961         _cflags_size='-Os'
2962         _flags_filter='filter_out -Wdisabled-optimization'
2963     elif $_cc -v 2>&1 | grep -q Open64; then
2964         _type=open64
2965         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2966         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2967         _cflags_speed='-O2'
2968         _cflags_size='-Os'
2969         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2970     elif $_cc -V 2>&1 | grep -q Portland; then
2971         _type=pgi
2972         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2973         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2974         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2975         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2976         _cflags_noopt="-O"
2977         _flags_filter=pgi_flags
2978     elif $_cc 2>&1 | grep -q Microsoft; then
2979         _type=msvc
2980         _ident=$($cc 2>&1 | head -n1)
2981         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2982         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2983         _cflags_speed="-O2"
2984         _cflags_size="-O1"
2985         # Nonstandard output options, to avoid msys path conversion issues.
2986         # Relies on wrapper to remap it.
2987         if $_cc 2>&1 | grep -q Linker; then
2988             _ld_o='-out $@'
2989         else
2990             _ld_o='-Fe$@'
2991         fi
2992         _cc_o='-Fo $@'
2993         _cc_e='-P -Fi $@'
2994         _flags_filter=msvc_flags
2995         _ld_lib='lib%.a'
2996         _ld_path='-libpath:'
2997         _flags='-nologo'
2998         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2999         if [ $pfx = hostcc ]; then
3000             append _cflags -Dsnprintf=_snprintf
3001         fi
3002         disable stripping
3003     elif $_cc 2>&1 | grep -q Intel; then
3004         _type=icl
3005         _ident=$($cc 2>&1 | head -n1)
3006         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3007         # Not only is O3 broken on 13.x+ but it is slower on all previous
3008         # versions (tested) as well.
3009         _cflags_speed="-O2"
3010         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3011         # Nonstandard output options, to avoid msys path conversion issues.
3012         # Relies on wrapper to remap it.
3013         if $_cc 2>&1 | grep -q Linker; then
3014             _ld_o='-out $@'
3015         else
3016             _ld_o='-Fe$@'
3017         fi
3018         _cc_o='-Fo $@'
3019         _cc_e='-P'
3020         _flags_filter=icl_flags
3021         _ld_lib='lib%.a'
3022         _ld_path='-libpath:'
3023         # -Qdiag-error to make icl error when seeing certain unknown arguments
3024         _flags='-nologo -Qdiag-error:4044,10157'
3025         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3026         # with MSVC which enables it by default.
3027         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3028         if [ $pfx = hostcc ]; then
3029             append _cflags -Dsnprintf=_snprintf
3030         fi
3031     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3032         _type=cparser
3033         _ident=$($_cc --version | head -n1)
3034         _depflags='-MMD'
3035         _cflags_speed='-O4'
3036         _cflags_size='-O2'
3037         _flags_filter=cparser_flags
3038     fi
3039
3040     eval ${pfx}_type=\$_type
3041     eval ${pfx}_ident=\$_ident
3042 }
3043
3044 set_ccvars(){
3045     eval ${1}_C=\${_cc_c-\${${1}_C}}
3046     eval ${1}_E=\${_cc_e-\${${1}_E}}
3047     eval ${1}_O=\${_cc_o-\${${1}_O}}
3048
3049     if [ -n "$_depflags" ]; then
3050         eval ${1}_DEPFLAGS=\$_depflags
3051     else
3052         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3053         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3054         eval DEP${1}FLAGS=\$_flags
3055     fi
3056 }
3057
3058 probe_cc cc "$cc"
3059 cflags_filter=$_flags_filter
3060 cflags_speed=$_cflags_speed
3061 cflags_size=$_cflags_size
3062 cflags_noopt=$_cflags_noopt
3063 add_cflags $_flags $_cflags
3064 cc_ldflags=$_ldflags
3065 set_ccvars CC
3066
3067 probe_cc hostcc "$host_cc"
3068 host_cflags_filter=$_flags_filter
3069 add_host_cflags  $_flags $_cflags
3070 set_ccvars HOSTCC
3071
3072 test -n "$cc_type" && enable $cc_type ||
3073     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3074
3075 : ${as_default:=$cc}
3076 : ${dep_cc_default:=$cc}
3077 : ${ld_default:=$cc}
3078 : ${host_ld_default:=$host_cc}
3079 set_default ar as dep_cc ld host_ld
3080
3081 probe_cc as "$as"
3082 asflags_filter=$_flags_filter
3083 add_asflags $_flags $_cflags
3084 set_ccvars AS
3085
3086 probe_cc ld "$ld"
3087 ldflags_filter=$_flags_filter
3088 add_ldflags $_flags $_ldflags
3089 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3090 LD_O=${_ld_o-$LD_O}
3091 LD_LIB=${_ld_lib-$LD_LIB}
3092 LD_PATH=${_ld_path-$LD_PATH}
3093
3094 probe_cc hostld "$host_ld"
3095 host_ldflags_filter=$_flags_filter
3096 add_host_ldflags $_flags $_ldflags
3097 HOSTLD_O=${_ld_o-$HOSTLD_O}
3098
3099 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3100     probe_cc depcc "$dep_cc"
3101     CCDEP=${_DEPCMD:-$DEPCMD}
3102     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3103     DEPCCFLAGS=$_flags
3104 fi
3105
3106 if $ar 2>&1 | grep -q Microsoft; then
3107     arflags="-nologo"
3108     ar_o='-out:$@'
3109 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3110     arflags="rq"
3111     ar_o='$@'
3112 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3113     arflags='-Xany -r -c'
3114     ar_o='$@'
3115 else
3116     arflags="rc"
3117     ar_o='$@'
3118 fi
3119
3120 add_cflags $extra_cflags
3121 add_cxxflags $extra_cxxflags
3122 add_asflags $extra_cflags
3123
3124 if test -n "$sysroot"; then
3125     case "$cc_type" in
3126         gcc|llvm_gcc|clang)
3127             add_cppflags --sysroot="$sysroot"
3128             add_ldflags --sysroot="$sysroot"
3129         ;;
3130         tms470)
3131             add_cppflags -I"$sysinclude"
3132             add_ldflags  --sysroot="$sysroot"
3133         ;;
3134     esac
3135 fi
3136
3137 if test "$cpu" = host; then
3138     enabled cross_compile &&
3139         die "--cpu=host makes no sense when cross-compiling."
3140
3141     case "$cc_type" in
3142         gcc|llvm_gcc)
3143             check_native(){
3144                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3145                 sed -n "/cc1.*$1=/{
3146                             s/.*$1=\\([^ ]*\\).*/\\1/
3147                             p
3148                             q
3149                         }" $TMPE
3150             }
3151             cpu=$(check_native -march || check_native -mcpu)
3152         ;;
3153     esac
3154
3155     test "${cpu:-host}" = host &&
3156         die "--cpu=host not supported with compiler $cc"
3157 fi
3158
3159 # Deal with common $arch aliases
3160 case "$arch" in
3161     aarch64|arm64)
3162         arch="aarch64"
3163     ;;
3164     arm*|iPad*|iPhone*)
3165         arch="arm"
3166     ;;
3167     mips*|IP*)
3168         arch="mips"
3169     ;;
3170     parisc*|hppa*)
3171         arch="parisc"
3172     ;;
3173     "Power Macintosh"|ppc*|powerpc*)
3174         arch="ppc"
3175     ;;
3176     s390|s390x)
3177         arch="s390"
3178     ;;
3179     sh4|sh)
3180         arch="sh4"
3181     ;;
3182     sun4u|sparc*)
3183         arch="sparc"
3184     ;;
3185     tilegx|tile-gx)
3186         arch="tilegx"
3187     ;;
3188     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3189         arch="x86"
3190     ;;
3191 esac
3192
3193 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3194 enable $arch
3195
3196 # Add processor-specific flags
3197 if enabled aarch64; then
3198
3199     case $cpu in
3200         armv*)
3201             cpuflags="-march=$cpu"
3202         ;;
3203         *)
3204             cpuflags="-mcpu=$cpu"
3205         ;;
3206     esac
3207
3208 elif enabled alpha; then
3209
3210     cpuflags="-mcpu=$cpu"
3211
3212 elif enabled arm; then
3213
3214     check_arm_arch() {
3215         check_cpp_condition stddef.h \
3216             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3217             $cpuflags
3218     }
3219
3220     probe_arm_arch() {
3221         if   check_arm_arch 4;        then echo armv4;
3222         elif check_arm_arch 4T;       then echo armv4t;
3223         elif check_arm_arch 5;        then echo armv5;
3224         elif check_arm_arch 5E;       then echo armv5e;
3225         elif check_arm_arch 5T;       then echo armv5t;
3226         elif check_arm_arch 5TE;      then echo armv5te;
3227         elif check_arm_arch 5TEJ;     then echo armv5te;
3228         elif check_arm_arch 6;        then echo armv6;
3229         elif check_arm_arch 6J;       then echo armv6j;
3230         elif check_arm_arch 6K;       then echo armv6k;
3231         elif check_arm_arch 6Z;       then echo armv6z;
3232         elif check_arm_arch 6ZK;      then echo armv6zk;
3233         elif check_arm_arch 6T2;      then echo armv6t2;
3234         elif check_arm_arch 7;        then echo armv7;
3235         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3236         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3237         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3238         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3239         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3240         fi
3241     }
3242
3243     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3244
3245     case $cpu in
3246         armv*)
3247             cpuflags="-march=$cpu"
3248             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3249         ;;
3250         *)
3251             cpuflags="-mcpu=$cpu"
3252             case $cpu in
3253                 cortex-a*)                               subarch=armv7a  ;;
3254                 cortex-r*)                               subarch=armv7r  ;;
3255                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3256                 arm11*)                                  subarch=armv6   ;;
3257                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3258                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3259                 *)                             subarch=$(probe_arm_arch) ;;
3260             esac
3261         ;;
3262     esac
3263
3264     case "$subarch" in
3265         armv5t*)    enable fast_clz                ;;
3266         armv[6-8]*) enable fast_clz fast_unaligned ;;
3267     esac
3268
3269 elif enabled avr32; then
3270
3271     case $cpu in
3272         ap7[02]0[0-2])
3273             subarch="avr32_ap"
3274             cpuflags="-mpart=$cpu"
3275         ;;
3276         ap)
3277             subarch="avr32_ap"
3278             cpuflags="-march=$cpu"
3279         ;;
3280         uc3[ab]*)
3281             subarch="avr32_uc"
3282             cpuflags="-mcpu=$cpu"
3283         ;;
3284         uc)
3285             subarch="avr32_uc"
3286             cpuflags="-march=$cpu"
3287         ;;
3288     esac
3289
3290 elif enabled bfin; then
3291
3292     cpuflags="-mcpu=$cpu"
3293
3294 elif enabled mips; then
3295
3296     cpuflags="-march=$cpu"
3297
3298     case $cpu in
3299         24kc)
3300             disable mipsfpu
3301             disable mipsdspr1
3302             disable mipsdspr2
3303         ;;
3304         24kf*)
3305             disable mipsdspr1
3306             disable mipsdspr2
3307         ;;
3308         24kec|34kc|1004kc)
3309             disable mipsfpu
3310             disable mipsdspr2
3311         ;;
3312         24kef*|34kf*|1004kf*)
3313             disable mipsdspr2
3314         ;;
3315         74kc)
3316             disable mipsfpu
3317         ;;
3318     esac
3319
3320 elif enabled ppc; then
3321
3322     case $(tolower $cpu) in
3323         601|ppc601|powerpc601)
3324             cpuflags="-mcpu=601"
3325             disable altivec
3326         ;;
3327         603*|ppc603*|powerpc603*)
3328             cpuflags="-mcpu=603"
3329             disable altivec
3330         ;;
3331         604*|ppc604*|powerpc604*)
3332             cpuflags="-mcpu=604"
3333             disable altivec
3334         ;;
3335         g3|75*|ppc75*|powerpc75*)
3336             cpuflags="-mcpu=750"
3337             disable altivec
3338         ;;
3339         g4|745*|ppc745*|powerpc745*)
3340             cpuflags="-mcpu=7450"
3341         ;;
3342         74*|ppc74*|powerpc74*)
3343             cpuflags="-mcpu=7400"
3344         ;;
3345         g5|970|ppc970|powerpc970)
3346             cpuflags="-mcpu=970"
3347         ;;
3348         power[3-7]*)
3349             cpuflags="-mcpu=$cpu"
3350         ;;
3351         cell)
3352             cpuflags="-mcpu=cell"
3353             enable ldbrx
3354         ;;
3355         e500mc)
3356             cpuflags="-mcpu=e500mc"
3357             disable altivec
3358         ;;
3359         e500v2)
3360             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3361             disable altivec
3362         ;;
3363         e500)
3364             cpuflags="-mcpu=8540 -mhard-float"
3365             disable altivec
3366         ;;
3367     esac
3368
3369 elif enabled sparc; then
3370
3371     case $cpu in
3372         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3373             cpuflags="-mcpu=$cpu"
3374             disable vis
3375         ;;
3376         ultrasparc*|niagara[234])
3377             cpuflags="-mcpu=$cpu"
3378         ;;
3379     esac
3380
3381 elif enabled x86; then
3382
3383     case $cpu in
3384         i[345]86|pentium)
3385             cpuflags="-march=$cpu"
3386             disable mmx
3387         ;;
3388         # targets that do NOT support nopl and conditional mov (cmov)
3389         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3390             cpuflags="-march=$cpu"
3391             disable i686
3392         ;;
3393         # targets that do support nopl and conditional mov (cmov)
3394         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3395             cpuflags="-march=$cpu"
3396             enable i686
3397             enable fast_cmov
3398         ;;
3399         # targets that do support conditional mov but on which it's slow
3400         pentium4|pentium4m|prescott|nocona)
3401             cpuflags="-march=$cpu"
3402             enable i686
3403             disable fast_cmov
3404         ;;
3405     esac
3406
3407 fi
3408
3409 if [ "$cpu" != generic ]; then
3410     add_cflags  $cpuflags
3411     add_asflags $cpuflags
3412 fi
3413
3414 # compiler sanity check
3415 check_exec <<EOF
3416 int main(void){ return 0; }
3417 EOF
3418 if test "$?" != 0; then
3419     echo "$cc is unable to create an executable file."
3420     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3421         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3422         echo "Only do this if you know what cross compiling means."
3423     fi
3424     die "C compiler test failed."
3425 fi
3426
3427 add_cppflags -D_ISOC99_SOURCE
3428 add_cxxflags -D__STDC_CONSTANT_MACROS
3429 check_cflags -std=c99
3430 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3431 #include <stdlib.h>
3432 EOF
3433 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3434 #include <stdlib.h>
3435 EOF
3436
3437 check_host_cflags -std=c99
3438 check_host_cflags -Wall
3439
3440 check_64bit(){
3441     arch32=$1
3442     arch64=$2
3443     expr=$3
3444     check_code cc "" "int test[2*($expr) - 1]" &&
3445         subarch=$arch64 || subarch=$arch32
3446 }
3447
3448 case "$arch" in
3449     aarch64|alpha|ia64)
3450         spic=$shared
3451     ;;
3452     mips)
3453         check_64bit mips mips64 '_MIPS_SIM > 1'
3454         spic=$shared
3455     ;;
3456     parisc)
3457         check_64bit parisc parisc64 'sizeof(void *) > 4'
3458         spic=$shared
3459     ;;
3460     ppc)
3461         check_64bit ppc ppc64 'sizeof(void *) > 4'
3462         spic=$shared
3463     ;;
3464     sparc)
3465         check_64bit sparc sparc64 'sizeof(void *) > 4'
3466         spic=$shared
3467     ;;
3468     x86)
3469         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3470         if test "$subarch" = "x86_64"; then
3471             spic=$shared
3472         fi
3473     ;;
3474     ppc)
3475         check_cc <<EOF && subarch="ppc64"
3476         int test[(int)sizeof(char*) - 7];
3477 EOF
3478     ;;
3479 esac
3480
3481 enable $subarch
3482 enabled spic && enable_weak pic
3483
3484 # OS specific
3485 case $target_os in
3486     aix)
3487         SHFLAGS=-shared
3488         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3489         enabled shared && add_ldflags -Wl,-brtl
3490         ;;
3491     haiku)
3492         prefix_default="/boot/common"
3493         network_extralibs="-lnetwork"
3494         host_libs=
3495         ;;
3496     sunos)
3497         SHFLAGS='-shared -Wl,-h,$$(@F)'
3498         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3499         network_extralibs="-lsocket -lnsl"
3500         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3501         # When using suncc to build, the Solaris linker will mark
3502         # an executable with each instruction set encountered by
3503         # the Solaris assembler.  As our libraries contain their own
3504         # guards for processor-specific code, instead suppress
3505         # generation of the HWCAPS ELF section on Solaris x86 only.
3506         enabled_all suncc x86 &&
3507             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3508             add_ldflags -Wl,-M,mapfile
3509         nm_default='nm -P -g'
3510         ;;
3511     netbsd)
3512         disable symver
3513         oss_indev_extralibs="-lossaudio"
3514         oss_outdev_extralibs="-lossaudio"
3515         enabled gcc || check_ldflags -Wl,-zmuldefs
3516         ;;
3517     openbsd|bitrig)
3518         disable symver
3519         SHFLAGS='-shared'
3520         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3521         SLIB_INSTALL_LINKS=
3522         oss_indev_extralibs="-lossaudio"
3523         oss_outdev_extralibs="-lossaudio"
3524         ;;
3525     dragonfly)
3526         disable symver
3527         ;;
3528     freebsd)
3529         ;;
3530     bsd/os)
3531         add_extralibs -lpoll -lgnugetopt
3532         strip="strip -d"
3533         ;;
3534     darwin)
3535         gas="gas-preprocessor.pl $cc"
3536         enabled ppc && add_asflags -force_cpusubtype_ALL
3537         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3538         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3539         strip="${strip} -x"
3540         add_ldflags -Wl,-dynamic,-search_paths_first
3541         SLIBSUF=".dylib"
3542         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3543         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3544         objformat="macho"
3545         enabled x86_64 && objformat="macho64"
3546         enabled_any pic shared ||
3547             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3548         ;;
3549     mingw32*)
3550         if test $target_os = "mingw32ce"; then
3551             disable network
3552         else
3553             target_os=mingw32
3554         fi
3555         LIBTARGET=i386
3556         if enabled x86_64; then
3557             LIBTARGET="i386:x86-64"
3558         elif enabled arm; then
3559             LIBTARGET=arm-wince
3560         fi
3561         check_ldflags -Wl,--nxcompat
3562         check_ldflags -Wl,--dynamicbase
3563         shlibdir_default="$bindir_default"
3564         SLIBPREF=""
3565         SLIBSUF=".dll"
3566         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3567         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3568         dlltool="${cross_prefix}dlltool"
3569         if check_cmd lib.exe -list; then
3570             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3571             if enabled x86_64; then
3572                 LIBTARGET=x64
3573             fi
3574         elif check_cmd $dlltool --version; then
3575             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3576         fi
3577         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3578         SLIB_INSTALL_LINKS=
3579         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3580         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3581         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3582         objformat="win32"
3583         ranlib=:
3584         enable dos_paths
3585         ;;
3586     win32|win64)
3587         if enabled shared; then
3588             # Link to the import library instead of the normal static library
3589             # for shared libs.
3590             LD_LIB='%.lib'
3591             # Cannot build both shared and static libs with MSVC or icl.
3592             disable static
3593         fi
3594         shlibdir_default="$bindir_default"
3595         SLIBPREF=""
3596         SLIBSUF=".dll"
3597         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3598         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3599         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3600         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3601         SLIB_INSTALL_LINKS=
3602         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3603         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3604         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3605         objformat="win32"
3606         ranlib=:
3607         enable dos_paths
3608         ;;
3609     cygwin*)
3610         target_os=cygwin
3611         shlibdir_default="$bindir_default"
3612         SLIBPREF="cyg"
3613         SLIBSUF=".dll"
3614         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3615         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3616         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3617         SLIB_INSTALL_LINKS=
3618         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3619         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3620         objformat="win32"
3621         enable dos_paths
3622         ;;
3623     *-dos|freedos|opendos)
3624         network_extralibs="-lsocket"
3625         objformat="coff"
3626         enable dos_paths
3627         add_cppflags -U__STRICT_ANSI__
3628         ;;
3629     linux)
3630         enable dv1394
3631         ;;
3632     irix*)
3633         target_os=irix
3634         ranlib="echo ignoring ranlib"
3635         ;;
3636     os/2*)
3637         strip="lxlite -CS"
3638         ln_s="cp -f"
3639         objformat="aout"
3640         add_cppflags -D_GNU_SOURCE
3641         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3642         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3643         LIBSUF="_s.a"
3644         SLIBPREF=""
3645         SLIBSUF=".dll"
3646         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3647         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3648         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3649             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3650             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3651             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3652             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3653             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3654         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3655             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3656         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3657         enable dos_paths
3658         enable_weak os2threads
3659         ;;
3660     gnu/kfreebsd)
3661         add_cppflags -D_BSD_SOURCE
3662         ;;
3663     gnu)
3664         ;;
3665     qnx)
3666         add_cppflags -D_QNX_SOURCE
3667         network_extralibs="-lsocket"
3668         ;;
3669     symbian)
3670         SLIBSUF=".dll"
3671         enable dos_paths
3672         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3673         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3674         add_ldflags -Wl,--target1-abs,--no-undefined \
3675                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3676                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3677         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3678                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3679                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3680         ;;
3681     osf1)
3682         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3683         ;;
3684     minix)
3685         ;;
3686     plan9)
3687         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3688                      -D_REENTRANT_SOURCE        \
3689                      -D_RESEARCH_SOURCE         \
3690                      -DFD_SETSIZE=96            \
3691                      -DHAVE_SOCK_OPTS
3692         add_compat strtod.o strtod=avpriv_strtod
3693         network_extralibs='-lbsd'
3694         exeobjs=compat/plan9/main.o
3695         disable ffserver
3696         cp_f='cp'
3697         ;;
3698     none)
3699         ;;
3700     *)
3701         die "Unknown OS '$target_os'."
3702         ;;
3703 esac
3704
3705 # determine libc flavour
3706
3707 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3708 if check_cpp_condition features.h "defined __UCLIBC__"; then
3709     libc_type=uclibc
3710     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3711 elif check_cpp_condition features.h "defined __GLIBC__"; then
3712     libc_type=glibc
3713     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3714 # MinGW headers can be installed on Cygwin, so check for newlib first.
3715 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3716     libc_type=newlib
3717     add_cppflags -U__STRICT_ANSI__
3718 elif check_header _mingw.h; then
3719     libc_type=mingw
3720     check_cpp_condition _mingw.h \
3721         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3722             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3723         die "ERROR: MinGW runtime version must be >= 3.15."
3724     add_cppflags -U__STRICT_ANSI__
3725     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3726             __MINGW64_VERSION_MAJOR < 3"; then
3727         add_compat msvcrt/snprintf.o
3728         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3729     else
3730         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3731     fi
3732 elif check_func_headers stdlib.h _get_doserrno; then
3733     libc_type=msvcrt
3734     add_compat strtod.o strtod=avpriv_strtod
3735     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3736                                  _snprintf=avpriv_snprintf  \
3737                                  vsnprintf=avpriv_vsnprintf
3738     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3739     # 0x601 by default unless something else is set by the user.
3740     # This can easily lead to us detecting functions only present
3741     # in such new versions and producing binaries requiring windows 7.0.
3742     # Therefore explicitly set the default to XP unless the user has
3743     # set something else on the command line.
3744     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3745 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3746     libc_type=klibc
3747 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3748     libc_type=bionic
3749     add_compat strtod.o strtod=avpriv_strtod
3750 fi
3751
3752 test -n "$libc_type" && enable $libc_type
3753
3754 # hacks for compiler/libc/os combinations
3755
3756 if enabled_all tms470 glibc; then
3757     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3758     add_cppflags -D__USER_LABEL_PREFIX__=
3759     add_cppflags -D__builtin_memset=memset
3760     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3761     add_cflags   -pds=48    # incompatible redefinition of macro
3762 fi
3763
3764 if enabled_all ccc glibc; then
3765     add_ldflags -Wl,-z,now  # calls to libots crash without this
3766 fi
3767
3768 esc(){
3769     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3770 }
3771
3772 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3773
3774 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3775
3776 set_default $PATHS_LIST
3777 set_default nm
3778
3779 # we need to build at least one lib type
3780 if ! enabled_any static shared; then
3781     cat <<EOF
3782 At least one library type must be built.
3783 Specify --enable-static to build the static libraries or --enable-shared to
3784 build the shared libraries as well. To only build the shared libraries specify
3785 --disable-static in addition to --enable-shared.
3786 EOF
3787     exit 1;
3788 fi
3789
3790 # backward compatibility layer for incompatible_libav/fork_abi
3791 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3792 enabled incompatible_libav_abi && enable incompatible_fork_abi
3793
3794 die_license_disabled() {
3795     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3796 }
3797
3798 die_license_disabled_gpl() {
3799     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3800 }
3801
3802 die_license_disabled gpl frei0r
3803 die_license_disabled gpl libcdio
3804 die_license_disabled gpl libutvideo
3805 die_license_disabled gpl libvidstab
3806 die_license_disabled gpl libx264
3807 die_license_disabled gpl libxavs
3808 die_license_disabled gpl libxvid
3809 die_license_disabled gpl libzvbi
3810 die_license_disabled gpl x11grab
3811
3812 die_license_disabled nonfree libaacplus
3813 die_license_disabled nonfree libfaac
3814 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3815 enabled gpl && die_license_disabled_gpl nonfree openssl
3816
3817 die_license_disabled version3 libopencore_amrnb
3818 die_license_disabled version3 libopencore_amrwb
3819 die_license_disabled version3 libvo_aacenc
3820 die_license_disabled version3 libvo_amrwbenc
3821
3822 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3823
3824 disabled optimizations || check_cflags -fomit-frame-pointer
3825
3826 enable_weak_pic() {
3827     disabled pic && return
3828     enable pic
3829     add_cppflags -DPIC
3830     case "$target_os" in
3831     mingw*|cygwin*)
3832         ;;
3833     *)
3834         add_cflags -fPIC
3835         ;;
3836     esac
3837     add_asflags  -fPIC
3838 }
3839
3840 enabled pic && enable_weak_pic
3841
3842 check_cc <<EOF || die "Symbol mangling check failed."
3843 int ff_extern;
3844 EOF
3845 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3846 extern_prefix=${sym%%ff_extern*}
3847
3848 check_cc <<EOF && enable_weak inline_asm
3849 void foo(void) { __asm__ volatile ("" ::); }
3850 EOF
3851
3852 _restrict=
3853 for restrict_keyword in restrict __restrict__ __restrict; do
3854     check_cc <<EOF && _restrict=$restrict_keyword && break
3855 void foo(char * $restrict_keyword p);
3856 EOF
3857 done
3858
3859 check_cc <<EOF && enable pragma_deprecated
3860 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3861 EOF
3862
3863 check_cc <<EOF && enable attribute_packed
3864 struct { int x; } __attribute__((packed)) x;
3865 EOF
3866
3867 check_cc <<EOF && enable attribute_may_alias
3868 union { int x; } __attribute__((may_alias)) x;
3869 EOF
3870
3871 check_cc <<EOF || die "endian test failed"
3872 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3873 EOF
3874 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3875
3876 check_inline_asm inline_asm_labels '"1:\n"'
3877
3878 if enabled alpha; then
3879
3880     check_cflags -mieee
3881
3882 elif enabled arm; then
3883
3884     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3885 float func(float a, float b){ return a+b; }
3886 EOF
3887
3888     enabled thumb && check_cflags -mthumb || check_cflags -marm
3889     nogas=die
3890
3891     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3892         enable vfp_args
3893     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3894         case "${cross_prefix:-$cc}" in
3895             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3896             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3897 __asm__ (".eabi_attribute 28, 1");
3898 int main(void) { return 0; }
3899 EOF
3900         esac
3901         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3902     fi
3903
3904     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3905     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3906     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3907     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3908     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3909     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3910
3911     [ $target_os = linux ] ||
3912         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3913             $ARCH_EXT_LIST_ARM
3914
3915     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3916     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3917
3918     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3919
3920 elif enabled mips; then
3921
3922     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3923     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3924      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3925     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3926      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3927     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3928      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3929     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3930      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3931
3932 elif enabled parisc; then
3933
3934     if enabled gcc; then
3935         case $($cc -dumpversion) in
3936             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3937         esac
3938     fi
3939
3940 elif enabled ppc; then
3941
3942     enable local_aligned_8 local_aligned_16
3943
3944     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3945     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3946     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3947     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3948
3949     # AltiVec flags: The FSF version of GCC differs from the Apple version
3950     if enabled altivec; then
3951         if ! enabled_any pic ppc64; then
3952             nogas=warn
3953         fi
3954         check_cflags -maltivec -mabi=altivec &&
3955         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3956         check_cflags -faltivec
3957
3958         # check if our compiler supports Motorola AltiVec C API
3959         check_cc <<EOF || disable altivec
3960 $inc_altivec_h
3961 int main(void) {
3962     vector signed int v1 = (vector signed int) { 0 };
3963     vector signed int v2 = (vector signed int) { 1 };
3964     v1 = vec_add(v1, v2);
3965     return 0;
3966 }
3967 EOF
3968
3969         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3970     fi
3971
3972 elif enabled sparc; then
3973
3974     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3975
3976 elif enabled x86; then
3977
3978     check_builtin rdtsc    intrin.h   "__rdtsc()"
3979     check_builtin mm_empty mmintrin.h "_mm_empty()"
3980
3981     enable local_aligned_8 local_aligned_16
3982
3983     # check whether EBP is available on x86
3984     # As 'i' is stored on the stack, this program will crash
3985     # if the base pointer is used to access it because the
3986     # base pointer is cleared in the inline assembly code.
3987     check_exec_crash <<EOF && enable ebp_available
3988 volatile int i=0;
3989 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3990 return i;
3991 EOF
3992
3993     # check whether EBX is available on x86
3994     check_inline_asm ebx_available '""::"b"(0)' &&
3995         check_inline_asm ebx_available '"":::"%ebx"'
3996
3997     # check whether xmm clobbers are supported
3998     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3999
4000     # check whether binutils is new enough to compile SSSE3/MMXEXT
4001     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4002     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4003
4004     if ! disabled_any asm mmx yasm; then
4005         if check_cmd $yasmexe --version; then
4006             enabled x86_64 && yasm_extra="-m amd64"
4007             yasm_debug="-g dwarf2"
4008         elif check_cmd nasm -v; then
4009             yasmexe=nasm
4010             yasm_debug="-g -F dwarf"
4011             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4012         fi
4013
4014         YASMFLAGS="-f $objformat $yasm_extra"
4015         enabled pic               && append YASMFLAGS "-DPIC"
4016         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4017         case "$objformat" in
4018             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4019         esac
4020
4021         check_yasm "movbe ecx, [5]" && enable yasm ||
4022             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4023         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4024         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4025         check_yasm "CPU amdnop" && enable cpunop
4026     fi
4027
4028     case "$cpu" in
4029         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4030             disable fast_clz
4031         ;;
4032     esac
4033
4034 fi
4035
4036 if enabled asm; then
4037     as=${gas:=$as}
4038     check_as <<EOF && enable gnu_as || \
4039         $nogas "GNU assembler not found, install gas-preprocessor"
4040 .macro m n
4041 \n: .int 0
4042 .endm
4043 m x
4044 EOF
4045 fi
4046
4047 check_ldflags -Wl,--as-needed
4048
4049 if check_func dlopen; then
4050     ldl=
4051 elif check_func dlopen -ldl; then
4052     ldl=-ldl
4053 fi
4054
4055 if ! disabled network; then
4056     check_type "sys/types.h sys/socket.h" socklen_t
4057     check_type netdb.h "struct addrinfo"
4058     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4059     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4060     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4061     check_type netinet/in.h "struct sockaddr_in6"
4062     check_type poll.h "struct pollfd"
4063     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4064     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4065     check_type netinet/sctp.h "struct sctp_event_subscribe"
4066     check_func getaddrinfo $network_extralibs
4067     check_func getservbyport $network_extralibs
4068     # Prefer arpa/inet.h over winsock2
4069     if check_header arpa/inet.h ; then
4070         check_func closesocket
4071     elif check_header winsock2.h ; then
4072         check_func_headers winsock2.h closesocket -lws2 &&
4073             network_extralibs="-lws2" ||
4074         { check_func_headers winsock2.h closesocket -lws2_32 &&
4075             network_extralibs="-lws2_32"; }
4076         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4077         check_type ws2tcpip.h socklen_t
4078         check_type ws2tcpip.h "struct addrinfo"
4079         check_type ws2tcpip.h "struct group_source_req"
4080         check_type ws2tcpip.h "struct ip_mreq_source"
4081         check_type ws2tcpip.h "struct ipv6_mreq"
4082         check_type winsock2.h "struct pollfd"
4083         check_type ws2tcpip.h "struct sockaddr_in6"
4084         check_type ws2tcpip.h "struct sockaddr_storage"
4085         check_struct winsock2.h "struct sockaddr" sa_len
4086     else
4087         disable network
4088     fi
4089 fi
4090
4091 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4092 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4093
4094 check_func  access
4095 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4096 check_func  fcntl
4097 check_func  fork
4098 check_func_headers stdlib.h getenv
4099 check_func  gethrtime
4100 check_func  getopt
4101 check_func  getrusage
4102 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4103 check_func  gettimeofday
4104 check_func  inet_aton $network_extralibs
4105 check_func  isatty
4106 check_func  localtime_r
4107 check_func  ${malloc_prefix}memalign            && enable memalign
4108 check_func  mkstemp
4109 check_func  mmap
4110 check_func  mprotect
4111 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4112 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4113 check_func  setrlimit
4114 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4115 check_func  strerror_r
4116 check_func  sched_getaffinity
4117 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4118 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4119 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4120 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4121 check_builtin sarestart signal.h "SA_RESTART"
4122 check_func  sysconf
4123 check_func  sysctl
4124 check_func  usleep
4125 check_func_headers conio.h kbhit
4126 check_func_headers windows.h PeekNamedPipe
4127 check_func_headers io.h setmode
4128 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4129 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4130 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4131 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4132 check_func_headers windows.h GetProcessAffinityMask
4133 check_func_headers windows.h GetProcessTimes
4134 check_func_headers windows.h GetSystemTimeAsFileTime
4135 check_func_headers windows.h MapViewOfFile
4136 check_func_headers windows.h SetConsoleTextAttribute
4137 check_func_headers windows.h Sleep
4138 check_func_headers windows.h VirtualAlloc
4139 check_func_headers glob.h glob
4140 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4141
4142 check_header cl/cl.h
4143 check_header direct.h
4144 check_header dlfcn.h
4145 check_header dxva.h
4146 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4147 check_header io.h
4148 check_header libcrystalhd/libcrystalhd_if.h
4149 check_header malloc.h
4150 check_header poll.h
4151 check_header sys/mman.h
4152 check_header sys/param.h
4153 check_header sys/resource.h
4154 check_header sys/select.h
4155 check_header sys/time.h
4156 check_header sys/un.h
4157 check_header termios.h
4158 check_header unistd.h
4159 check_header vdpau/vdpau.h
4160 check_header vdpau/vdpau_x11.h
4161 check_header VideoDecodeAcceleration/VDADecoder.h
4162 check_header windows.h
4163 check_header X11/extensions/XvMClib.h
4164 check_header asm/types.h
4165
4166 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4167 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4168
4169 if ! disabled w32threads && ! enabled pthreads; then
4170     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4171 fi
4172
4173 # check for some common methods of building with pthread support
4174 # do this before the optional library checks as some of them require pthreads
4175 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4176     enable pthreads
4177     if check_func pthread_create; then
4178         :
4179     elif check_func pthread_create -pthread; then
4180         add_cflags -pthread
4181         add_extralibs -pthread
4182     elif check_func pthread_create -pthreads; then
4183         add_cflags -pthreads
4184         add_extralibs -pthreads
4185     elif check_func pthread_create -lpthreadGC2; then
4186         add_extralibs -lpthreadGC2
4187     elif ! check_lib pthread.h pthread_create -lpthread; then
4188         disable pthreads
4189     fi
4190 fi
4191
4192 for thread in $THREADS_LIST; do
4193     if enabled $thread; then
4194         test -n "$thread_type" &&
4195             die "ERROR: Only one thread type must be selected." ||
4196             thread_type="$thread"
4197     fi
4198 done
4199
4200 if enabled pthreads; then
4201   check_func pthread_cancel
4202 fi
4203
4204 enabled sync_val_compare_and_swap && enable atomics_gcc
4205 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4206 enabled MemoryBarrier && enable atomics_win32
4207
4208 check_lib math.h sin -lm && LIBM="-lm"
4209 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4210
4211 atan2f_args=2
4212 ldexpf_args=2
4213 powf_args=2
4214
4215 for func in $MATH_FUNCS; do
4216     eval check_mathfunc $func \${${func}_args:-1}
4217 done
4218
4219 # these are off by default, so fail if requested and not available
4220 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4221                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4222                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4223 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4224 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4225 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4226 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4227 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4228 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4229 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4230 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4231 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4232                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4233                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4234 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4235 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4236 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4237 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"
4238 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4239 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4240 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4241 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4242                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4243                                done || die "ERROR: libgsm not found"; }
4244 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4245 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4246 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4247 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4248 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4249 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4250 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4251 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4252                                check_lib openjpeg.h opj_version -lopenjpeg ||
4253                                die "ERROR: libopenjpeg not found"; }
4254 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4255 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4256 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4257 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4258 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4259 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4260 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4261 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4262 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4263 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4264     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4265     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4266 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4267 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4268                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4269                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4270 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4271 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4272 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4273 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4274 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4275 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4276 enabled libvpx            && {
4277     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4278                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4279     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 ||
4280                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4281     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4282     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4283 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4284 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4285                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4286                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4287 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4288 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4289 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4290 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4291 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4292                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4293                                die "ERROR: openal not found"; } &&
4294                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4295                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4296 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4297                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4298                                die "ERROR: opencl not found"; } &&
4299                              { ! enabled_any w32threads os2threads ||
4300                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4301                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4302                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4303                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4304 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4305                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4306                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4307                                die "ERROR: openssl not found"; }
4308
4309 if enabled gnutls; then
4310     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4311     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4312 fi
4313
4314 # libdc1394 check
4315 if enabled libdc1394; then
4316     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4317         enable libdc1394_2; } ||
4318     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4319         enable libdc1394_1; } ||
4320     die "ERROR: No version of libdc1394 found "
4321 fi
4322
4323 SDL_CONFIG="${cross_prefix}sdl-config"
4324 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4325     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4326     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4327     enable sdl
4328 else
4329   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4330     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4331     sdl_libs=$("${SDL_CONFIG}" --libs)
4332     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4333     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4334     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4335     enable sdl
4336   fi
4337 fi
4338 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4339
4340 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4341 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4342 perl --version > /dev/null 2>&1 && enable perl || disable perl
4343 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4344 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4345
4346 check_header linux/fb.h
4347 check_header linux/videodev.h
4348 check_header linux/videodev2.h
4349 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4350
4351 check_header sys/videoio.h
4352
4353 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4354 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4355 # w32api 3.12 had it defined wrong
4356 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4357
4358 check_type "dshow.h" IBaseFilter
4359
4360 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4361 { check_header dev/bktr/ioctl_meteor.h &&
4362   check_header dev/bktr/ioctl_bt848.h; } ||
4363 { check_header machine/ioctl_meteor.h &&
4364   check_header machine/ioctl_bt848.h; } ||
4365 { check_header dev/video/meteor/ioctl_meteor.h &&
4366   check_header dev/video/bktr/ioctl_bt848.h; } ||
4367 check_header dev/ic/bt8xx.h
4368
4369 check_header sndio.h
4370 if check_struct sys/soundcard.h audio_buf_info bytes; then
4371     enable_safe sys/soundcard.h
4372 else
4373     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4374     #include <sys/soundcard.h>
4375     audio_buf_info abc;
4376 EOF
4377 fi
4378 check_header soundcard.h
4379
4380 enabled_any alsa_indev alsa_outdev &&
4381     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4382
4383 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4384     check_func jack_port_get_latency_range -ljack
4385
4386 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4387
4388 if enabled libcdio; then
4389     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4390     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4391     die "ERROR: libcdio-paranoia not found"
4392 fi
4393
4394 enabled x11grab                                           &&
4395 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4396 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4397 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4398
4399 enabled vaapi &&
4400     check_lib va/va.h vaInitialize -lva ||
4401     disable vaapi
4402
4403 enabled vdpau &&
4404     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4405     disable vdpau
4406
4407 # Funny iconv installations are not unusual, so check it after all flags have been set
4408 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4409
4410 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4411
4412 # add some useful compiler flags if supported
4413 check_cflags -Wdeclaration-after-statement
4414 check_cflags -Wall
4415 check_cflags -Wno-parentheses
4416 check_cflags -Wno-switch
4417 check_cflags -Wno-format-zero-length
4418 check_cflags -Wdisabled-optimization
4419 check_cflags -Wpointer-arith
4420 check_cflags -Wredundant-decls
4421 check_cflags -Wno-pointer-sign
4422 check_cflags -Wwrite-strings
4423 check_cflags -Wtype-limits
4424 check_cflags -Wundef
4425 check_cflags -Wmissing-prototypes
4426 check_cflags -Wno-pointer-to-int-cast
4427 check_cflags -Wstrict-prototypes
4428 enabled extra_warnings && check_cflags -Winline
4429
4430 # add some linker flags
4431 check_ldflags -Wl,--warn-common
4432 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4433 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4434
4435 enabled xmm_clobber_test &&
4436     check_ldflags -Wl,--wrap,avcodec_open2              \
4437                   -Wl,--wrap,avcodec_decode_audio4      \
4438                   -Wl,--wrap,avcodec_decode_video2      \
4439                   -Wl,--wrap,avcodec_decode_subtitle2   \
4440                   -Wl,--wrap,avcodec_encode_audio2      \
4441                   -Wl,--wrap,avcodec_encode_video       \
4442                   -Wl,--wrap,avcodec_encode_video2      \
4443                   -Wl,--wrap,avcodec_encode_subtitle    \
4444                   -Wl,--wrap,sws_scale ||
4445     disable xmm_clobber_test
4446
4447 echo "X{};" > $TMPV
4448 if test_ldflags -Wl,--version-script,$TMPV; then
4449     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4450     check_cc <<EOF && enable symver_asm_label
4451 void ff_foo(void) __asm__ ("av_foo@VERSION");
4452 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4453 EOF
4454     check_cc <<EOF && enable symver_gnu_asm
4455 __asm__(".symver ff_foo,av_foo@VERSION");
4456 void ff_foo(void) {}
4457 EOF
4458 fi
4459
4460 if [ -z "$optflags" ]; then
4461     if enabled small; then
4462         optflags=$cflags_size
4463     elif enabled optimizations; then
4464         optflags=$cflags_speed
4465     else
4466         optflags=$cflags_noopt
4467     fi
4468 fi
4469
4470 check_optflags(){
4471     check_cflags "$@"
4472     enabled lto && check_ldflags "$@"
4473 }
4474
4475
4476 if enabled lto; then
4477     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4478     check_cflags  -flto
4479     check_ldflags -flto $cpuflags
4480 fi
4481
4482 check_optflags $optflags
4483 check_optflags -fno-math-errno
4484 check_optflags -fno-signed-zeros
4485
4486 enabled ftrapv && check_cflags -ftrapv
4487
4488 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4489 int x;
4490 EOF
4491
4492
4493 if enabled icc; then
4494     # Just warnings, no remarks
4495     check_cflags -w1
4496     # -wd: Disable following warnings
4497     # 144, 167, 556: -Wno-pointer-sign
4498     # 188: enumerated type mixed with another type
4499     # 1292: attribute "foo" ignored
4500     # 1419: external declaration in primary source file
4501     # 10006: ignoring unknown option -fno-signed-zeros
4502     # 10148: ignoring unknown option -Wno-parentheses
4503     # 10156: ignoring option '-W'; no argument required
4504     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4505     # 11030: Warning unknown option --as-needed
4506     # 10156: ignoring option '-export'; no argument required
4507     check_ldflags -wd10156,11030
4508     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4509     enable ebp_available
4510     if enabled x86_32; then
4511         icc_version=$($cc -dumpversion)
4512         test ${icc_version%%.*} -ge 11 &&
4513             check_cflags -falign-stack=maintain-16-byte ||
4514             disable aligned_stack
4515     fi
4516 elif enabled ccc; then
4517     # disable some annoying warnings
4518     add_cflags -msg_disable bitnotint
4519     add_cflags -msg_disable mixfuncvoid
4520     add_cflags -msg_disable nonstandcast
4521     add_cflags -msg_disable unsupieee
4522 elif enabled gcc; then
4523     check_optflags -fno-tree-vectorize
4524     check_cflags -Werror=implicit-function-declaration
4525     check_cflags -Werror=missing-prototypes
4526     check_cflags -Werror=return-type
4527     check_cflags -Werror=vla
4528 elif enabled llvm_gcc; then
4529     check_cflags -mllvm -stack-alignment=16
4530 elif enabled clang; then
4531     check_cflags -mllvm -stack-alignment=16
4532     check_cflags -Qunused-arguments
4533     check_cflags -Werror=implicit-function-declaration
4534     check_cflags -Werror=missing-prototypes
4535     check_cflags -Werror=return-type
4536 elif enabled cparser; then
4537     add_cflags -Wno-missing-variable-declarations
4538     add_cflags -Wno-empty-statement
4539 elif enabled armcc; then
4540     # 2523: use of inline assembler is deprecated
4541     add_cflags -W${armcc_opt},--diag_suppress=2523
4542     add_cflags -W${armcc_opt},--diag_suppress=1207
4543     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4544     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4545     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4546     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4547 elif enabled tms470; then
4548     add_cflags -pds=824 -pds=837
4549 elif enabled pathscale; then
4550     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4551 elif enabled_any msvc icl; then
4552     enabled x86_32 && disable aligned_stack
4553     enabled_all x86_32 debug && add_cflags -Oy-
4554     enabled debug && add_ldflags -debug
4555     enable pragma_deprecated
4556     if enabled icl; then
4557         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4558         # (correctly) on icl 13.x.
4559         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4560             add_cflags -Qansi-alias
4561         # icl will pass the inline asm tests but inline asm is currently
4562         # not supported (build will fail)
4563         disable inline_asm
4564     fi
4565 fi
4566
4567 case $target_os in
4568     osf1)
4569         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4570     ;;
4571     plan9)
4572         add_cppflags -Dmain=plan9_main
4573     ;;
4574 esac
4575
4576 enable frame_thread_encoder
4577 enabled_any $THREADS_LIST      && enable threads
4578 enabled_any $ATOMICS_LIST      && enable atomics_native
4579
4580 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4581
4582 check_deps $CONFIG_LIST       \
4583            $CONFIG_EXTRA      \
4584            $HAVE_LIST         \
4585            $ALL_COMPONENTS    \
4586
4587
4588 if test $target_os = "haiku"; then
4589     disable memalign
4590     disable posix_memalign
4591 fi
4592
4593 ! enabled_any memalign posix_memalign aligned_malloc &&
4594     enabled_any $need_memalign && enable memalign_hack
4595
4596 # add_dep lib dep
4597 # -> enable ${lib}_deps_${dep}
4598 # -> add $dep to ${lib}_deps only once
4599 add_dep() {
4600     lib=$1
4601     dep=$2
4602     enabled "${lib}_deps_${dep}" && return 0
4603     enable  "${lib}_deps_${dep}"
4604     prepend "${lib}_deps" $dep
4605 }
4606
4607 # merge deps lib components
4608 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4609 merge_deps() {
4610     lib=$1
4611     shift
4612     for comp in $*; do
4613         enabled $comp || continue
4614         eval "dep=\"\$${comp}_deps\""
4615         for d in $dep; do
4616             add_dep $lib $d
4617         done
4618     done
4619 }
4620
4621 merge_deps libavfilter $FILTER_LIST
4622
4623 echo "install prefix            $prefix"
4624 echo "source path               $source_path"
4625 echo "C compiler                $cc"
4626 echo "ARCH                      $arch ($cpu)"
4627 if test "$build_suffix" != ""; then
4628     echo "build suffix              $build_suffix"
4629 fi
4630 if test "$progs_suffix" != ""; then
4631     echo "progs suffix              $progs_suffix"
4632 fi
4633 if test "$extra_version" != ""; then
4634     echo "version string suffix     $extra_version"
4635 fi
4636 echo "big-endian                ${bigendian-no}"
4637 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4638 if enabled x86; then
4639     echo "${yasmexe}                      ${yasm-no}"
4640     echo "MMX enabled               ${mmx-no}"
4641     echo "MMXEXT enabled            ${mmxext-no}"
4642     echo "3DNow! enabled            ${amd3dnow-no}"
4643     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4644     echo "SSE enabled               ${sse-no}"
4645     echo "SSSE3 enabled             ${ssse3-no}"
4646     echo "AVX enabled               ${avx-no}"
4647     echo "FMA4 enabled              ${fma4-no}"
4648     echo "i686 features enabled     ${i686-no}"
4649     echo "CMOV is fast              ${fast_cmov-no}"
4650     echo "EBX available             ${ebx_available-no}"
4651     echo "EBP available             ${ebp_available-no}"
4652 fi
4653 if enabled arm; then
4654     echo "ARMv5TE enabled           ${armv5te-no}"
4655     echo "ARMv6 enabled             ${armv6-no}"
4656     echo "ARMv6T2 enabled           ${armv6t2-no}"
4657     echo "VFP enabled               ${vfp-no}"
4658     echo "NEON enabled              ${neon-no}"
4659     echo "THUMB enabled             ${thumb-no}"
4660 fi
4661 if enabled mips; then
4662     echo "MIPS FPU enabled          ${mipsfpu-no}"
4663     echo "MIPS32R2 enabled          ${mips32r2-no}"
4664     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4665     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4666 fi
4667 if enabled ppc; then
4668     echo "AltiVec enabled           ${altivec-no}"
4669     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4670     echo "dcbzl available           ${dcbzl-no}"
4671 fi
4672 if enabled sparc; then
4673     echo "VIS enabled               ${vis-no}"
4674 fi
4675 echo "debug symbols             ${debug-no}"
4676 echo "strip symbols             ${stripping-no}"
4677 echo "optimize for size         ${small-no}"
4678 echo "optimizations             ${optimizations-no}"
4679 echo "static                    ${static-no}"
4680 echo "shared                    ${shared-no}"
4681 echo "postprocessing support    ${postproc-no}"
4682 echo "new filter support        ${avfilter-no}"
4683 echo "network support           ${network-no}"
4684 echo "threading support         ${thread_type-no}"
4685 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4686 echo "SDL support               ${sdl-no}"
4687 echo "opencl enabled            ${opencl-no}"
4688 echo "libzvbi enabled           ${libzvbi-no}"
4689 echo "texi2html enabled         ${texi2html-no}"
4690 echo "perl enabled              ${perl-no}"
4691 echo "pod2man enabled           ${pod2man-no}"
4692 echo "makeinfo enabled          ${makeinfo-no}"
4693 test -n "$random_seed" &&
4694     echo "random seed               ${random_seed}"
4695 echo
4696
4697 echo "External libraries:"
4698 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4699 echo
4700
4701 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4702     echo "Enabled ${type}s:"
4703     eval list=\$$(toupper $type)_LIST
4704     print_enabled '_*' $list | print_3_columns
4705     echo
4706 done
4707
4708 license="LGPL version 2.1 or later"
4709 if enabled nonfree; then
4710     license="nonfree and unredistributable"
4711 elif enabled gplv3; then
4712     license="GPL version 3 or later"
4713 elif enabled lgplv3; then
4714     license="LGPL version 3 or later"
4715 elif enabled gpl; then
4716     license="GPL version 2 or later"
4717 fi
4718
4719 echo "License: $license"
4720
4721 echo "Creating config.mak, config.h, and doc/config.texi..."
4722
4723 test -e Makefile || $ln_s "$source_path/Makefile" .
4724
4725 enabled stripping || strip="echo skipping strip"
4726
4727 config_files="$TMPH config.mak doc/config.texi"
4728
4729 cat > config.mak <<EOF
4730 # Automatically generated by configure - do not modify!
4731 ifndef FFMPEG_CONFIG_MAK
4732 FFMPEG_CONFIG_MAK=1
4733 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4734 prefix=$prefix
4735 LIBDIR=\$(DESTDIR)$libdir
4736 SHLIBDIR=\$(DESTDIR)$shlibdir
4737 INCDIR=\$(DESTDIR)$incdir
4738 BINDIR=\$(DESTDIR)$bindir
4739 DATADIR=\$(DESTDIR)$datadir
4740 DOCDIR=\$(DESTDIR)$docdir
4741 MANDIR=\$(DESTDIR)$mandir
4742 SRC_PATH=$source_path
4743 ifndef MAIN_MAKEFILE
4744 SRC_PATH:=\$(SRC_PATH:.%=..%)
4745 endif
4746 CC_IDENT=$cc_ident
4747 ARCH=$arch
4748 CC=$cc
4749 CXX=$cxx
4750 AS=$as
4751 LD=$ld
4752 DEPCC=$dep_cc
4753 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4754 DEPAS=$as
4755 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4756 YASM=$yasmexe
4757 DEPYASM=$yasmexe
4758 AR=$ar
4759 ARFLAGS=$arflags
4760 AR_O=$ar_o
4761 RANLIB=$ranlib
4762 STRIP=$strip
4763 CP=cp -p
4764 LN_S=$ln_s
4765 CPPFLAGS=$CPPFLAGS
4766 CFLAGS=$CFLAGS
4767 CXXFLAGS=$CXXFLAGS
4768 ASFLAGS=$ASFLAGS
4769 AS_C=$AS_C
4770 AS_O=$AS_O
4771 CC_C=$CC_C
4772 CC_E=$CC_E
4773 CC_O=$CC_O
4774 CXX_C=$CXX_C
4775 CXX_O=$CXX_O
4776 LD_O=$LD_O
4777 LD_LIB=$LD_LIB
4778 LD_PATH=$LD_PATH
4779 DLLTOOL=$dlltool
4780 LDFLAGS=$LDFLAGS
4781 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4782 YASMFLAGS=$YASMFLAGS
4783 BUILDSUF=$build_suffix
4784 PROGSSUF=$progs_suffix
4785 FULLNAME=$FULLNAME
4786 LIBPREF=$LIBPREF
4787 LIBSUF=$LIBSUF
4788 LIBNAME=$LIBNAME
4789 SLIBPREF=$SLIBPREF
4790 SLIBSUF=$SLIBSUF
4791 EXESUF=$EXESUF
4792 EXTRA_VERSION=$extra_version
4793 CCDEP=$CCDEP
4794 CXXDEP=$CXXDEP
4795 CCDEP_FLAGS=$CCDEP_FLAGS
4796 ASDEP=$ASDEP
4797 ASDEP_FLAGS=$ASDEP_FLAGS
4798 CC_DEPFLAGS=$CC_DEPFLAGS
4799 AS_DEPFLAGS=$AS_DEPFLAGS
4800 HOSTCC=$host_cc
4801 HOSTLD=$host_ld
4802 HOSTCFLAGS=$host_cflags
4803 HOSTCPPFLAGS=$host_cppflags
4804 HOSTEXESUF=$HOSTEXESUF
4805 HOSTLDFLAGS=$host_ldflags
4806 HOSTLIBS=$host_libs
4807 DEPHOSTCC=$host_cc
4808 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4809 HOSTCCDEP=$HOSTCCDEP
4810 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4811 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4812 HOSTCC_C=$HOSTCC_C
4813 HOSTCC_O=$HOSTCC_O
4814 HOSTLD_O=$HOSTLD_O
4815 TARGET_EXEC=$target_exec $target_exec_args
4816 TARGET_PATH=$target_path
4817 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4818 LIBS-ffplay=$sdl_libs
4819 CFLAGS-ffplay=$sdl_cflags
4820 ZLIB=$($ldflags_filter -lz)
4821 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4822 EXTRALIBS=$extralibs
4823 COMPAT_OBJS=$compat_objs
4824 EXEOBJS=$exeobjs
4825 INSTALL=$install
4826 LIBTARGET=${LIBTARGET}
4827 SLIBNAME=${SLIBNAME}
4828 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4829 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4830 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4831 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4832 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4833 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4834 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4835 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4836 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4837 NOREDZONE_FLAGS=$noredzone_flags
4838 EOF
4839
4840 get_version(){
4841     lcname=lib${1}
4842     name=$(toupper $lcname)
4843     file=$source_path/$lcname/version.h
4844     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4845     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4846     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4847     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4848     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4849 }
4850
4851 map 'get_version $v' $LIBRARY_LIST
4852
4853 cat > $TMPH <<EOF
4854 /* Automatically generated by configure - do not modify! */
4855 #ifndef FFMPEG_CONFIG_H
4856 #define FFMPEG_CONFIG_H
4857 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4858 #define FFMPEG_LICENSE "$(c_escape $license)"
4859 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4860 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4861 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4862 #define av_restrict $_restrict
4863 #define EXTERN_PREFIX "${extern_prefix}"
4864 #define EXTERN_ASM ${extern_prefix}
4865 #define SLIBSUF "$SLIBSUF"
4866 #define HAVE_MMX2 HAVE_MMXEXT
4867 EOF
4868
4869 test -n "$assert_level" &&
4870     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4871
4872 test -n "$malloc_prefix" &&
4873     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4874
4875 if enabled yasm; then
4876     append config_files $TMPASM
4877     printf '' >$TMPASM
4878 fi
4879
4880 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4881
4882
4883 mkdir -p doc
4884 echo "@c auto-generated by configure" > doc/config.texi
4885
4886 print_config ARCH_   "$config_files" $ARCH_LIST
4887 print_config HAVE_   "$config_files" $HAVE_LIST
4888 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4889                                      $CONFIG_EXTRA      \
4890                                      $ALL_COMPONENTS    \
4891
4892 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4893 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4894
4895 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4896 cp_if_changed $TMPH config.h
4897 touch .config
4898
4899 enabled yasm && cp_if_changed $TMPASM config.asm
4900
4901 cat > $TMPH <<EOF
4902 /* Generated by ffconf */
4903 #ifndef AVUTIL_AVCONFIG_H
4904 #define AVUTIL_AVCONFIG_H
4905 EOF
4906
4907 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4908
4909 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4910
4911 cp_if_changed $TMPH libavutil/avconfig.h
4912
4913 if test -n "$WARNINGS"; then
4914     printf "\n$WARNINGS"
4915     enabled fatal_warnings && exit 1
4916 fi
4917
4918 # build pkg-config files
4919
4920 pkgconfig_generate(){
4921     name=$1
4922     shortname=${name#lib}${build_suffix}
4923     comment=$2
4924     version=$3
4925     libs=$4
4926     requires=$5
4927     enabled ${name#lib} || return 0
4928     mkdir -p $name
4929     cat <<EOF > $name/$name${build_suffix}.pc
4930 prefix=$prefix
4931 exec_prefix=\${prefix}
4932 libdir=$libdir
4933 includedir=$incdir
4934
4935 Name: $name
4936 Description: $comment
4937 Version: $version
4938 Requires: $(enabled shared || echo $requires)
4939 Requires.private: $(enabled shared && echo $requires)
4940 Conflicts:
4941 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4942 Libs.private: $(enabled shared && echo $libs)
4943 Cflags: -I\${includedir}
4944 EOF
4945
4946 mkdir -p doc/examples/pc-uninstalled
4947 includedir=${source_path}
4948 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4949     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4950 prefix=
4951 exec_prefix=
4952 libdir=\${pcfiledir}/../../../$name
4953 includedir=${includedir}
4954
4955 Name: $name
4956 Description: $comment
4957 Version: $version
4958 Requires: $requires
4959 Conflicts:
4960 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4961 Cflags: -I\${includedir}
4962 EOF
4963 }
4964
4965 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4966 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4967 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4968 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4969 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4970 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4971 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4972 lavfi_libs=${lavfi_libs%, }
4973
4974 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4975 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4976
4977 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
4978 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4979 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4980 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
4981 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4982 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4983 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4984 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4985 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4986
4987 fix_ffmpeg_remote(){
4988     git_remote_from=$1
4989     git_remote_to=$2
4990     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4991     if [ "$fixme_remote" != "" ]; then
4992         echolog "
4993 Outdated domain in git config, the official domain for ffmpeg git is since
4994 November 2011, source.ffmpeg.org, both the old and the new point to the same
4995 repository and server. To update it enter the following commands:
4996 "
4997         for remote in $fixme_remote; do
4998             echolog "git remote set-url $remote $git_remote_to"
4999         done
5000     fi
5001 }
5002
5003 if test -f "$source_path/.git/config"; then
5004     remote_from=git.videolan.org
5005     remote_to=source.ffmpeg.org
5006     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
5007     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
5008 fi