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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --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 sdl_outdev_deps="sdl"
2138 sndio_indev_deps="sndio_h"
2139 sndio_outdev_deps="sndio_h"
2140 v4l_indev_deps="linux_videodev_h"
2141 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2142 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2143 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2144 vfwcap_indev_extralibs="-lavicap32"
2145 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2146 xv_outdev_extralibs="-lXv -lX11 -lXext"
2147 x11grab_indev_deps="x11grab"
2148
2149 # protocols
2150 bluray_protocol_deps="libbluray"
2151 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2152 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2153 ffrtmpcrypt_protocol_select="tcp_protocol"
2154 ffrtmphttp_protocol_deps="!librtmp_protocol"
2155 ffrtmphttp_protocol_select="http_protocol"
2156 ftp_protocol_select="tcp_protocol"
2157 gopher_protocol_select="network"
2158 httpproxy_protocol_select="tcp_protocol"
2159 http_protocol_select="tcp_protocol"
2160 https_protocol_select="tls_protocol"
2161 librtmp_protocol_deps="librtmp"
2162 librtmpe_protocol_deps="librtmp"
2163 librtmps_protocol_deps="librtmp"
2164 librtmpt_protocol_deps="librtmp"
2165 librtmpte_protocol_deps="librtmp"
2166 libssh_protocol_deps="libssh"
2167 mmsh_protocol_select="http_protocol"
2168 mmst_protocol_select="network"
2169 rtmp_protocol_deps="!librtmp_protocol"
2170 rtmp_protocol_select="tcp_protocol"
2171 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2172 rtmps_protocol_deps="!librtmp_protocol"
2173 rtmps_protocol_select="tls_protocol"
2174 rtmpt_protocol_select="ffrtmphttp_protocol"
2175 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2176 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2177 rtp_protocol_select="udp_protocol"
2178 sctp_protocol_deps="struct_sctp_event_subscribe"
2179 sctp_protocol_select="network"
2180 srtp_protocol_select="rtp_protocol"
2181 tcp_protocol_select="network"
2182 tls_protocol_deps_any="openssl gnutls"
2183 tls_protocol_select="tcp_protocol"
2184 udp_protocol_select="network"
2185 unix_protocol_deps="sys_un_h"
2186 unix_protocol_select="network"
2187
2188 # filters
2189 aconvert_filter_deps="swresample"
2190 amovie_filter_deps="avcodec avformat"
2191 aresample_filter_deps="swresample"
2192 ass_filter_deps="libass"
2193 asyncts_filter_deps="avresample"
2194 atempo_filter_deps="avcodec rdft"
2195 azmq_filter_deps="libzmq"
2196 blackframe_filter_deps="gpl"
2197 boxblur_filter_deps="gpl"
2198 colormatrix_filter_deps="gpl"
2199 cropdetect_filter_deps="gpl"
2200 dctdnoiz_filter_deps="avcodec fft"
2201 delogo_filter_deps="gpl"
2202 deshake_filter_deps="avcodec"
2203 deshake_filter_select="dsputil"
2204 drawtext_filter_deps="libfreetype"
2205 ebur128_filter_deps="gpl"
2206 flite_filter_deps="libflite"
2207 frei0r_filter_deps="frei0r dlopen"
2208 frei0r_filter_extralibs='$ldl'
2209 frei0r_src_filter_deps="frei0r dlopen"
2210 frei0r_src_filter_extralibs='$ldl'
2211 geq_filter_deps="gpl"
2212 histeq_filter_deps="gpl"
2213 hqdn3d_filter_deps="gpl"
2214 interlace_filter_deps="gpl"
2215 kerndeint_filter_deps="gpl"
2216 ladspa_filter_deps="ladspa dlopen"
2217 mcdeint_filter_deps="avcodec gpl"
2218 movie_filter_deps="avcodec avformat"
2219 mp_filter_deps="gpl avcodec swscale inline_asm"
2220 mpdecimate_filter_deps="gpl avcodec"
2221 mptestsrc_filter_deps="gpl"
2222 negate_filter_deps="lut_filter"
2223 noise_filter_deps="gpl"
2224 perspective_filter_deps="gpl"
2225 resample_filter_deps="avresample"
2226 ocv_filter_deps="libopencv"
2227 owdenoise_filter_deps="gpl"
2228 pan_filter_deps="swresample"
2229 phase_filter_deps="gpl"
2230 pp_filter_deps="gpl postproc"
2231 pullup_filter_deps="gpl"
2232 removelogo_filter_deps="avcodec avformat swscale"
2233 sab_filter_deps="gpl swscale"
2234 scale_filter_deps="swscale"
2235 smartblur_filter_deps="gpl swscale"
2236 showspectrum_filter_deps="avcodec rdft"
2237 spp_filter_deps="gpl avcodec fft"
2238 stereo3d_filter_deps="gpl"
2239 subtitles_filter_deps="avformat avcodec libass"
2240 super2xsai_filter_deps="gpl"
2241 tinterlace_filter_deps="gpl"
2242 vidstabdetect_filter_deps="libvidstab"
2243 vidstabtransform_filter_deps="libvidstab"
2244 yadif_filter_deps="gpl"
2245 pixfmts_super2xsai_test_deps="super2xsai_filter"
2246 tinterlace_merge_test_deps="tinterlace_filter"
2247 tinterlace_pad_test_deps="tinterlace_filter"
2248 zmq_filter_deps="libzmq"
2249
2250 # libraries
2251 avcodec_deps="avutil"
2252 avdevice_deps="avutil avcodec avformat"
2253 avfilter_deps="avutil"
2254 avformat_deps="avutil avcodec"
2255 avresample_deps="avutil"
2256 postproc_deps="avutil gpl"
2257 swscale_deps="avutil"
2258
2259 # programs
2260 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2261 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2262                null_filter
2263                setpts_filter trim_filter"
2264 ffplay_deps="avcodec avformat swscale swresample sdl"
2265 ffplay_select="rdft crop_filter"
2266 ffprobe_deps="avcodec avformat"
2267 ffserver_deps="avformat fork sarestart"
2268 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2269 ffserver_extralibs='$ldl'
2270
2271 # documentation
2272 podpages_deps="perl"
2273 manpages_deps="perl pod2man"
2274 htmlpages_deps="texi2html"
2275 txtpages_deps="makeinfo"
2276 doc_deps_any="manpages htmlpages podpages txtpages"
2277
2278 # default parameters
2279
2280 logfile="config.log"
2281
2282 # installation paths
2283 prefix_default="/usr/local"
2284 bindir_default='${prefix}/bin'
2285 datadir_default='${prefix}/share/ffmpeg'
2286 docdir_default='${prefix}/share/doc/ffmpeg'
2287 incdir_default='${prefix}/include'
2288 libdir_default='${prefix}/lib'
2289 mandir_default='${prefix}/share/man'
2290 shlibdir_default="$libdir_default"
2291
2292 # toolchain
2293 ar_default="ar"
2294 cc_default="gcc"
2295 cxx_default="g++"
2296 host_cc_default="gcc"
2297 cp_f="cp -f"
2298 install="install"
2299 ln_s="ln -s -f"
2300 nm_default="nm -g"
2301 objformat="elf"
2302 pkg_config_default=pkg-config
2303 ranlib="ranlib"
2304 strip_default="strip"
2305 yasmexe_default="yasm"
2306
2307 nogas=":"
2308
2309 # machine
2310 arch_default=$(uname -m)
2311 cpu="generic"
2312
2313 # OS
2314 target_os_default=$(tolower $(uname -s))
2315 host_os=$target_os_default
2316
2317 # configurable options
2318 enable $PROGRAM_LIST
2319 enable $DOCUMENT_LIST
2320 enable $(filter_out avresample $LIBRARY_LIST)
2321 enable stripping
2322
2323 enable asm
2324 enable debug
2325 enable doc
2326 enable optimizations
2327 enable runtime_cpudetect
2328 enable safe_bitstream_reader
2329 enable static
2330 enable swscale_alpha
2331
2332 # Enable hwaccels by default.
2333 enable dxva2 vaapi vdpau
2334
2335 # build settings
2336 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2337 LIBPREF="lib"
2338 LIBSUF=".a"
2339 FULLNAME='$(NAME)$(BUILDSUF)'
2340 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2341 SLIBPREF="lib"
2342 SLIBSUF=".so"
2343 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2344 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2345 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2346 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2347 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2348 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2349
2350 asflags_filter=echo
2351 cflags_filter=echo
2352 ldflags_filter=echo
2353
2354 AS_C='-c'
2355 AS_O='-o $@'
2356 CC_C='-c'
2357 CC_E='-E -o $@'
2358 CC_O='-o $@'
2359 CXX_C='-c'
2360 CXX_O='-o $@'
2361 LD_O='-o $@'
2362 LD_LIB='-l%'
2363 LD_PATH='-L'
2364 HOSTCC_C='-c'
2365 HOSTCC_O='-o $@'
2366 HOSTLD_O='-o $@'
2367
2368 host_cflags='-O3 -g'
2369 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2370 host_libs='-lm'
2371 host_cflags_filter=echo
2372 host_ldflags_filter=echo
2373
2374 target_path='$(CURDIR)'
2375
2376 # since the object filename is not given with the -MM flag, the compiler
2377 # is only able to print the basename, and we must add the path ourselves
2378 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2379 DEPFLAGS='-MM'
2380
2381 # find source path
2382 if test -f configure; then
2383     source_path=.
2384 else
2385     source_path=$(cd $(dirname "$0"); pwd)
2386     echo "$source_path" | grep -q '[[:blank:]]' &&
2387         die "Out of tree builds are impossible with whitespace in source path."
2388     test -e "$source_path/config.h" &&
2389         die "Out of tree builds are impossible with config.h in source dir."
2390 fi
2391
2392 for v in "$@"; do
2393     r=${v#*=}
2394     l=${v%"$r"}
2395     r=$(sh_quote "$r")
2396     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2397 done
2398
2399 find_things(){
2400     thing=$1
2401     pattern=$2
2402     file=$source_path/$3
2403     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2404 }
2405
2406 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2407 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2408 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2409 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2410 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2411 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2412 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2413 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2414 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2415 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2416 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2417
2418 ALL_COMPONENTS="
2419     $BSF_LIST
2420     $DECODER_LIST
2421     $DEMUXER_LIST
2422     $ENCODER_LIST
2423     $FILTER_LIST
2424     $HWACCEL_LIST
2425     $INDEV_LIST
2426     $MUXER_LIST
2427     $OUTDEV_LIST
2428     $PARSER_LIST
2429     $PROTOCOL_LIST
2430 "
2431
2432 for n in $COMPONENT_LIST; do
2433     v=$(toupper ${n%s})_LIST
2434     eval enable \$$v
2435     eval ${n}_if_any="\$$v"
2436 done
2437
2438 enable $ARCH_EXT_LIST
2439
2440 die_unknown(){
2441     echo "Unknown option \"$1\"."
2442     echo "See $0 --help for available options."
2443     exit 1
2444 }
2445
2446 print_3_columns() {
2447     cat | tr ' ' '\n' | sort | pr -r -3 -t
2448 }
2449
2450 show_list() {
2451     suffix=_$1
2452     shift
2453     echo $* | sed s/$suffix//g | print_3_columns
2454     exit 0
2455 }
2456
2457 rand_list(){
2458     IFS=', '
2459     set -- $*
2460     unset IFS
2461     for thing; do
2462         comp=${thing%:*}
2463         prob=${thing#$comp}
2464         prob=${prob#:}
2465         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2466         echo "prob ${prob:-0.5}"
2467         printf '%s\n' $comp
2468     done
2469 }
2470
2471 do_random(){
2472     action=$1
2473     shift
2474     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2475     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2476 }
2477
2478 for opt do
2479     optval="${opt#*=}"
2480     case "$opt" in
2481         --extra-ldflags=*)
2482             add_ldflags $optval
2483         ;;
2484         --extra-libs=*)
2485             add_extralibs $optval
2486         ;;
2487         --disable-devices)
2488             disable $INDEV_LIST $OUTDEV_LIST
2489         ;;
2490         --enable-debug=*)
2491             debuglevel="$optval"
2492         ;;
2493         --disable-programs)
2494             disable $PROGRAM_LIST
2495         ;;
2496         --disable-everything)
2497             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2498         ;;
2499         --disable-all)
2500             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2501             disable $LIBRARY_LIST $PROGRAM_LIST doc
2502         ;;
2503         --enable-random|--disable-random)
2504             action=${opt%%-random}
2505             do_random ${action#--} $COMPONENT_LIST
2506         ;;
2507         --enable-random=*|--disable-random=*)
2508             action=${opt%%-random=*}
2509             do_random ${action#--} $optval
2510         ;;
2511         --enable-*=*|--disable-*=*)
2512             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2513             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2514             eval list=\$$(toupper $thing)_LIST
2515             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2516             list=$(filter "$name" $list)
2517             [ "$list" = "" ] && warn "Option $opt did not match anything"
2518             $action $list
2519         ;;
2520         --enable-?*|--disable-?*)
2521             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2522             if is_in $option $COMPONENT_LIST; then
2523                 test $action = disable && action=unset
2524                 eval $action \$$(toupper ${option%s})_LIST
2525             elif is_in $option $CMDLINE_SELECT; then
2526                 $action $option
2527             else
2528                 die_unknown $opt
2529             fi
2530         ;;
2531         --list-*)
2532             NAME="${opt#--list-}"
2533             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2534             NAME=${NAME%s}
2535             eval show_list $NAME \$$(toupper $NAME)_LIST
2536         ;;
2537         --help|-h) show_help
2538         ;;
2539         --fatal-warnings) enable fatal_warnings
2540         ;;
2541         *)
2542             optname="${opt%%=*}"
2543             optname="${optname#--}"
2544             optname=$(echo "$optname" | sed 's/-/_/g')
2545             if is_in $optname $CMDLINE_SET; then
2546                 eval $optname='$optval'
2547             elif is_in $optname $CMDLINE_APPEND; then
2548                 append $optname "$optval"
2549             else
2550                 die_unknown $opt
2551             fi
2552         ;;
2553     esac
2554 done
2555
2556 disabled logging && logfile=/dev/null
2557
2558 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2559 set >> $logfile
2560
2561 test -n "$cross_prefix" && enable cross_compile
2562
2563 if enabled cross_compile; then
2564     test -n "$arch" && test -n "$target_os" ||
2565         die "Must specify target arch and OS when cross-compiling"
2566 fi
2567
2568 ar_default="${cross_prefix}${ar_default}"
2569 cc_default="${cross_prefix}${cc_default}"
2570 cxx_default="${cross_prefix}${cxx_default}"
2571 nm_default="${cross_prefix}${nm_default}"
2572 pkg_config_default="${cross_prefix}${pkg_config_default}"
2573 ranlib="${cross_prefix}${ranlib}"
2574 strip_default="${cross_prefix}${strip_default}"
2575
2576 sysinclude_default="${sysroot}/usr/include"
2577
2578 test -n "$valgrind" && toolchain="valgrind-memcheck"
2579
2580 case "$toolchain" in
2581     clang-asan)
2582         cc_default="clang"
2583         add_cflags  -fsanitize=address
2584         add_ldflags -fsanitize=address
2585     ;;
2586     clang-tsan)
2587         cc_default="clang"
2588         add_cflags  -fsanitize=thread -pie
2589         add_ldflags -fsanitize=thread -pie
2590     ;;
2591     gcc-asan)
2592         cc_default="gcc"
2593         add_cflags  -fsanitize=address
2594         add_ldflags -fsanitize=address
2595     ;;
2596     gcc-tsan)
2597         cc_default="gcc"
2598         add_cflags  -fsanitize=thread -pie -fPIC
2599         add_ldflags -fsanitize=thread -pie -fPIC
2600     ;;
2601     valgrind-massif)
2602         target_exec_default=${valgrind:-"valgrind"}
2603         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"
2604     ;;
2605     valgrind-memcheck)
2606         target_exec_default=${valgrind:-"valgrind"}
2607         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2608     ;;
2609     msvc)
2610         cc_default="c99wrap cl"
2611         ld_default="c99wrap link"
2612         nm_default="dumpbin -symbols"
2613         ar_default="lib"
2614         target_os_default="win32"
2615     ;;
2616     icl)
2617         cc_default="c99wrap -noconv icl"
2618         ld_default="c99wrap xilink"
2619         nm_default="dumpbin -symbols"
2620         ar_default="xilib"
2621         target_os_default="win32"
2622     ;;
2623     gcov)
2624         add_cflags  -fprofile-arcs -ftest-coverage
2625         add_ldflags -fprofile-arcs -ftest-coverage
2626     ;;
2627     ?*)
2628         die "Unknown toolchain $toolchain"
2629     ;;
2630 esac
2631
2632 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2633 enabled cross_compile || host_cc_default=$cc
2634 set_default host_cc
2635
2636 if ! $pkg_config --version >/dev/null 2>&1; then
2637     warn "$pkg_config not found, library detection may fail."
2638     pkg_config=false
2639 fi
2640
2641 exesuf() {
2642     case $1 in
2643         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2644     esac
2645 }
2646
2647 EXESUF=$(exesuf $target_os)
2648 HOSTEXESUF=$(exesuf $host_os)
2649
2650 # set temporary file name
2651 : ${TMPDIR:=$TEMPDIR}
2652 : ${TMPDIR:=$TMP}
2653 : ${TMPDIR:=/tmp}
2654
2655 if [ -n "$tempprefix" ] ; then
2656     mktemp(){
2657         echo $tempprefix.${HOSTNAME}.${UID}
2658     }
2659 elif ! check_cmd mktemp -u XXXXXX; then
2660     # simple replacement for missing mktemp
2661     # NOT SAFE FOR GENERAL USE
2662     mktemp(){
2663         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2664     }
2665 fi
2666
2667 tmpfile(){
2668     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2669         (set -C; exec > $tmp) 2>/dev/null ||
2670         die "Unable to create temporary file in $TMPDIR."
2671     append TMPFILES $tmp
2672     eval $1=$tmp
2673 }
2674
2675 trap 'rm -f -- $TMPFILES' EXIT
2676
2677 tmpfile TMPASM .asm
2678 tmpfile TMPC   .c
2679 tmpfile TMPCPP .cpp
2680 tmpfile TMPE   $EXESUF
2681 tmpfile TMPH   .h
2682 tmpfile TMPO   .o
2683 tmpfile TMPS   .S
2684 tmpfile TMPSH  .sh
2685 tmpfile TMPV   .ver
2686
2687 unset -f mktemp
2688
2689 chmod +x $TMPE
2690
2691 # make sure we can execute files in $TMPDIR
2692 cat > $TMPSH 2>> $logfile <<EOF
2693 #! /bin/sh
2694 EOF
2695 chmod +x $TMPSH >> $logfile 2>&1
2696 if ! $TMPSH >> $logfile 2>&1; then
2697     cat <<EOF
2698 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2699 variable to another directory and make sure that it is not mounted noexec.
2700 EOF
2701     die "Sanity test failed."
2702 fi
2703
2704 ccc_flags(){
2705     for flag; do
2706         case $flag in
2707             -std=c99)           echo -c99                       ;;
2708             -mcpu=*)            echo -arch ${flag#*=}           ;;
2709             -mieee)             echo -ieee                      ;;
2710             -O*|-fast)          echo $flag                      ;;
2711             -fno-math-errno)    echo -assume nomath_errno       ;;
2712             -g)                 echo -g3                        ;;
2713             -Wall)              echo -msg_enable level2         ;;
2714             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2715             -Wl,*)              echo $flag                      ;;
2716             -f*|-W*)                                            ;;
2717             *)                  echo $flag                      ;;
2718         esac
2719    done
2720 }
2721
2722 cparser_flags(){
2723     for flag; do
2724         case $flag in
2725             -Wno-switch)             echo -Wno-switch-enum ;;
2726             -Wno-format-zero-length) ;;
2727             -Wdisabled-optimization) ;;
2728             -Wno-pointer-sign)       echo -Wno-other ;;
2729             *)                       echo $flag ;;
2730         esac
2731     done
2732 }
2733
2734 msvc_common_flags(){
2735     for flag; do
2736         case $flag in
2737             # In addition to specifying certain flags under the compiler
2738             # specific filters, they must be specified here as well or else the
2739             # generic catch all at the bottom will print the original flag.
2740             -Wall)                ;;
2741             -std=c99)             ;;
2742             # Common flags
2743             -fomit-frame-pointer) ;;
2744             -g)                   echo -Z7 ;;
2745             -fno-math-errno)      ;;
2746             -fno-common)          ;;
2747             -fno-signed-zeros)    ;;
2748             -fPIC)                ;;
2749             -mthumb)              ;;
2750             -march=*)             ;;
2751             -lz)                  echo zlib.lib ;;
2752             -lavifil32)           echo vfw32.lib ;;
2753             -lavicap32)           echo vfw32.lib user32.lib ;;
2754             -l*)                  echo ${flag#-l}.lib ;;
2755             *)                    echo $flag ;;
2756         esac
2757     done
2758 }
2759
2760 msvc_flags(){
2761     msvc_common_flags "$@"
2762     for flag; do
2763         case $flag in
2764             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2765                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2766                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2767                                        -wd4554 \
2768                                        -wd4273 ;;
2769         esac
2770     done
2771 }
2772
2773 icl_flags(){
2774     msvc_common_flags "$@"
2775     for flag; do
2776         case $flag in
2777             # Despite what Intel's documentation says -Wall, which is supported
2778             # on Windows, does enable remarks so disable them here.
2779             -Wall)                echo $flag -Qdiag-disable:remark ;;
2780             -std=c99)             echo -Qstd=c99 ;;
2781         esac
2782     done
2783 }
2784
2785 pgi_flags(){
2786     for flag; do
2787         case $flag in
2788             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2789             -fomit-frame-pointer) echo -Mnoframe ;;
2790             -g)                   echo -gopt ;;
2791             *)                    echo $flag ;;
2792         esac
2793     done
2794 }
2795
2796 suncc_flags(){
2797     for flag; do
2798         case $flag in
2799             -march=*|-mcpu=*)
2800                 case "${flag#*=}" in
2801                     native)                   echo -xtarget=native       ;;
2802                     v9|niagara)               echo -xarch=sparc          ;;
2803                     ultrasparc)               echo -xarch=sparcvis       ;;
2804                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2805                     i586|pentium)             echo -xchip=pentium        ;;
2806                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2807                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2808                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2809                     pentium4*)          echo -xtarget=pentium4           ;;
2810                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2811                     *-sse3)             echo -xarch=sse3                 ;;
2812                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2813                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2814                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2815                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2816                     bdver*)                    echo -xarch=avx           ;;
2817                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2818                     k8|opteron|athlon64|athlon-fx)
2819                                                echo -xarch=sse2a         ;;
2820                     athlon*)                   echo -xarch=pentium_proa  ;;
2821                 esac
2822                 ;;
2823             -std=c99)             echo -xc99              ;;
2824             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2825             -fPIC)                echo -KPIC -xcode=pic32 ;;
2826             -W*,*)                echo $flag              ;;
2827             -f*-*|-W*|-mimpure-text)                      ;;
2828             -shared)              echo -G                 ;;
2829             *)                    echo $flag              ;;
2830         esac
2831     done
2832 }
2833
2834 tms470_flags(){
2835     for flag; do
2836         case $flag in
2837             -march=*|-mcpu=*)
2838                 case "${flag#*=}" in
2839                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2840                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2841                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2842                     armv6*|arm11*)          echo -mv=6   ;;
2843                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2844                                             echo -mv=5e  ;;
2845                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2846                 esac
2847                 ;;
2848             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2849             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2850             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2851             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2852             -msoft-float)   echo --float_support=vfplib       ;;
2853             -O[0-3]|-mf=*)  echo $flag                        ;;
2854             -g)             echo -g -mn                       ;;
2855             -pds=*)         echo $flag                        ;;
2856             -D*|-I*)        echo $flag                        ;;
2857             --gcc|--abi=*)  echo $flag                        ;;
2858             -me)            echo $flag                        ;;
2859         esac
2860     done
2861 }
2862
2863 probe_cc(){
2864     pfx=$1
2865     _cc=$2
2866
2867     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2868     unset _ld_o _ldflags _ld_lib _ld_path
2869     unset _depflags _DEPCMD _DEPFLAGS
2870     _flags_filter=echo
2871
2872     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2873         _type=llvm_gcc
2874         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2875         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2876         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2877         _cflags_speed='-O3'
2878         _cflags_size='-Os'
2879     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2880         _type=gcc
2881         gcc_version=$($_cc --version | head -n1)
2882         gcc_basever=$($_cc -dumpversion)
2883         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2884         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2885         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2886         if ! $_cc -dumpversion | grep -q '^2\.'; then
2887             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2888         fi
2889         _cflags_speed='-O3'
2890         _cflags_size='-Os'
2891     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2892         _type=icc
2893         _ident=$($_cc --version | head -n1)
2894         _depflags='-MMD'
2895         _cflags_speed='-O3'
2896         _cflags_size='-Os'
2897         _cflags_noopt='-O1'
2898     elif $_cc -v 2>&1 | grep -q xlc; then
2899         _type=xlc
2900         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2901         _cflags_speed='-O5'
2902         _cflags_size='-O5 -qcompact'
2903     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2904         _type=ccc
2905         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2906         _DEPFLAGS='-M'
2907         _cflags_speed='-fast'
2908         _cflags_size='-O1'
2909         _flags_filter=ccc_flags
2910     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2911         test -d "$sysroot" || die "No valid sysroot specified."
2912         _type=armcc
2913         _ident=$($_cc --vsn | head -n1)
2914         armcc_conf="$PWD/armcc.conf"
2915         $_cc --arm_linux_configure                 \
2916              --arm_linux_config_file="$armcc_conf" \
2917              --configure_sysroot="$sysroot"        \
2918              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2919              die "Error creating armcc configuration file."
2920         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2921         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2922         as_default="${cross_prefix}gcc"
2923         _depflags='-MMD'
2924         _cflags_speed='-O3'
2925         _cflags_size='-Os'
2926     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2927         _type=tms470
2928         _ident=$($_cc -version | head -n1 | tr -s ' ')
2929         _flags='--gcc --abi=eabi -me'
2930         _cc_e='-ppl -fe=$@'
2931         _cc_o='-fe=$@'
2932         _depflags='-ppa -ppd=$(@:.o=.d)'
2933         _cflags_speed='-O3 -mf=5'
2934         _cflags_size='-O3 -mf=2'
2935         _flags_filter=tms470_flags
2936     elif $_cc -v 2>&1 | grep -q clang; then
2937         _type=clang
2938         _ident=$($_cc --version | head -n1)
2939         _depflags='-MMD'
2940         _cflags_speed='-O3'
2941         _cflags_size='-Os'
2942     elif $_cc -V 2>&1 | grep -q Sun; then
2943         _type=suncc
2944         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2945         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2946         _DEPFLAGS='-xM1 -xc99'
2947         _ldflags='-std=c99'
2948         _cflags_speed='-O5'
2949         _cflags_size='-O5 -xspace'
2950         _flags_filter=suncc_flags
2951     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2952         _type=pathscale
2953         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2954         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2955         _cflags_speed='-O2'
2956         _cflags_size='-Os'
2957         _flags_filter='filter_out -Wdisabled-optimization'
2958     elif $_cc -v 2>&1 | grep -q Open64; then
2959         _type=open64
2960         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2961         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2962         _cflags_speed='-O2'
2963         _cflags_size='-Os'
2964         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2965     elif $_cc -V 2>&1 | grep -q Portland; then
2966         _type=pgi
2967         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2968         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2969         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2970         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2971         _cflags_noopt="-O"
2972         _flags_filter=pgi_flags
2973     elif $_cc 2>&1 | grep -q Microsoft; then
2974         _type=msvc
2975         _ident=$($cc 2>&1 | head -n1)
2976         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2977         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2978         _cflags_speed="-O2"
2979         _cflags_size="-O1"
2980         # Nonstandard output options, to avoid msys path conversion issues.
2981         # Relies on wrapper to remap it.
2982         if $_cc 2>&1 | grep -q Linker; then
2983             _ld_o='-out $@'
2984         else
2985             _ld_o='-Fe$@'
2986         fi
2987         _cc_o='-Fo $@'
2988         _cc_e='-P -Fi $@'
2989         _flags_filter=msvc_flags
2990         _ld_lib='lib%.a'
2991         _ld_path='-libpath:'
2992         _flags='-nologo'
2993         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2994         if [ $pfx = hostcc ]; then
2995             append _cflags -Dsnprintf=_snprintf
2996         fi
2997         disable stripping
2998     elif $_cc 2>&1 | grep -q Intel; then
2999         _type=icl
3000         _ident=$($cc 2>&1 | head -n1)
3001         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3002         # Not only is O3 broken on 13.x+ but it is slower on all previous
3003         # versions (tested) as well.
3004         _cflags_speed="-O2"
3005         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3006         # Nonstandard output options, to avoid msys path conversion issues.
3007         # Relies on wrapper to remap it.
3008         if $_cc 2>&1 | grep -q Linker; then
3009             _ld_o='-out $@'
3010         else
3011             _ld_o='-Fe$@'
3012         fi
3013         _cc_o='-Fo $@'
3014         _cc_e='-P'
3015         _flags_filter=icl_flags
3016         _ld_lib='lib%.a'
3017         _ld_path='-libpath:'
3018         # -Qdiag-error to make icl error when seeing certain unknown arguments
3019         _flags='-nologo -Qdiag-error:4044,10157'
3020         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3021         # with MSVC which enables it by default.
3022         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3023         if [ $pfx = hostcc ]; then
3024             append _cflags -Dsnprintf=_snprintf
3025         fi
3026     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3027         _type=cparser
3028         _ident=$($_cc --version | head -n1)
3029         _depflags='-MMD'
3030         _cflags_speed='-O4'
3031         _cflags_size='-O2'
3032         _flags_filter=cparser_flags
3033     fi
3034
3035     eval ${pfx}_type=\$_type
3036     eval ${pfx}_ident=\$_ident
3037 }
3038
3039 set_ccvars(){
3040     eval ${1}_C=\${_cc_c-\${${1}_C}}
3041     eval ${1}_E=\${_cc_e-\${${1}_E}}
3042     eval ${1}_O=\${_cc_o-\${${1}_O}}
3043
3044     if [ -n "$_depflags" ]; then
3045         eval ${1}_DEPFLAGS=\$_depflags
3046     else
3047         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3048         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3049         eval DEP${1}FLAGS=\$_flags
3050     fi
3051 }
3052
3053 probe_cc cc "$cc"
3054 cflags_filter=$_flags_filter
3055 cflags_speed=$_cflags_speed
3056 cflags_size=$_cflags_size
3057 cflags_noopt=$_cflags_noopt
3058 add_cflags $_flags $_cflags
3059 cc_ldflags=$_ldflags
3060 set_ccvars CC
3061
3062 probe_cc hostcc "$host_cc"
3063 host_cflags_filter=$_flags_filter
3064 add_host_cflags  $_flags $_cflags
3065 set_ccvars HOSTCC
3066
3067 test -n "$cc_type" && enable $cc_type ||
3068     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3069
3070 : ${as_default:=$cc}
3071 : ${dep_cc_default:=$cc}
3072 : ${ld_default:=$cc}
3073 : ${host_ld_default:=$host_cc}
3074 set_default ar as dep_cc ld host_ld
3075
3076 probe_cc as "$as"
3077 asflags_filter=$_flags_filter
3078 add_asflags $_flags $_cflags
3079 set_ccvars AS
3080
3081 probe_cc ld "$ld"
3082 ldflags_filter=$_flags_filter
3083 add_ldflags $_flags $_ldflags
3084 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3085 LD_O=${_ld_o-$LD_O}
3086 LD_LIB=${_ld_lib-$LD_LIB}
3087 LD_PATH=${_ld_path-$LD_PATH}
3088
3089 probe_cc hostld "$host_ld"
3090 host_ldflags_filter=$_flags_filter
3091 add_host_ldflags $_flags $_ldflags
3092 HOSTLD_O=${_ld_o-$HOSTLD_O}
3093
3094 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3095     probe_cc depcc "$dep_cc"
3096     CCDEP=${_DEPCMD:-$DEPCMD}
3097     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3098     DEPCCFLAGS=$_flags
3099 fi
3100
3101 if $ar 2>&1 | grep -q Microsoft; then
3102     arflags="-nologo"
3103     ar_o='-out:$@'
3104 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3105     arflags="rq"
3106     ar_o='$@'
3107 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3108     arflags='-Xany -r -c'
3109     ar_o='$@'
3110 else
3111     arflags="rc"
3112     ar_o='$@'
3113 fi
3114
3115 add_cflags $extra_cflags
3116 add_cxxflags $extra_cxxflags
3117 add_asflags $extra_cflags
3118
3119 if test -n "$sysroot"; then
3120     case "$cc_type" in
3121         gcc|llvm_gcc|clang)
3122             add_cppflags --sysroot="$sysroot"
3123             add_ldflags --sysroot="$sysroot"
3124         ;;
3125         tms470)
3126             add_cppflags -I"$sysinclude"
3127             add_ldflags  --sysroot="$sysroot"
3128         ;;
3129     esac
3130 fi
3131
3132 if test "$cpu" = host; then
3133     enabled cross_compile &&
3134         die "--cpu=host makes no sense when cross-compiling."
3135
3136     case "$cc_type" in
3137         gcc|llvm_gcc)
3138             check_native(){
3139                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3140                 sed -n "/cc1.*$1=/{
3141                             s/.*$1=\\([^ ]*\\).*/\\1/
3142                             p
3143                             q
3144                         }" $TMPE
3145             }
3146             cpu=$(check_native -march || check_native -mcpu)
3147         ;;
3148     esac
3149
3150     test "${cpu:-host}" = host &&
3151         die "--cpu=host not supported with compiler $cc"
3152 fi
3153
3154 # Deal with common $arch aliases
3155 case "$arch" in
3156     aarch64|arm64)
3157         arch="aarch64"
3158     ;;
3159     arm*|iPad*|iPhone*)
3160         arch="arm"
3161     ;;
3162     mips*|IP*)
3163         arch="mips"
3164     ;;
3165     parisc*|hppa*)
3166         arch="parisc"
3167     ;;
3168     "Power Macintosh"|ppc*|powerpc*)
3169         arch="ppc"
3170     ;;
3171     s390|s390x)
3172         arch="s390"
3173     ;;
3174     sh4|sh)
3175         arch="sh4"
3176     ;;
3177     sun4u|sparc*)
3178         arch="sparc"
3179     ;;
3180     tilegx|tile-gx)
3181         arch="tilegx"
3182     ;;
3183     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3184         arch="x86"
3185     ;;
3186 esac
3187
3188 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3189 enable $arch
3190
3191 # Add processor-specific flags
3192 if enabled aarch64; then
3193
3194     case $cpu in
3195         armv*)
3196             cpuflags="-march=$cpu"
3197         ;;
3198         *)
3199             cpuflags="-mcpu=$cpu"
3200         ;;
3201     esac
3202
3203 elif enabled alpha; then
3204
3205     cpuflags="-mcpu=$cpu"
3206
3207 elif enabled arm; then
3208
3209     check_arm_arch() {
3210         check_cpp_condition stddef.h \
3211             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3212             $cpuflags
3213     }
3214
3215     probe_arm_arch() {
3216         if   check_arm_arch 4;        then echo armv4;
3217         elif check_arm_arch 4T;       then echo armv4t;
3218         elif check_arm_arch 5;        then echo armv5;
3219         elif check_arm_arch 5E;       then echo armv5e;
3220         elif check_arm_arch 5T;       then echo armv5t;
3221         elif check_arm_arch 5TE;      then echo armv5te;
3222         elif check_arm_arch 5TEJ;     then echo armv5te;
3223         elif check_arm_arch 6;        then echo armv6;
3224         elif check_arm_arch 6J;       then echo armv6j;
3225         elif check_arm_arch 6K;       then echo armv6k;
3226         elif check_arm_arch 6Z;       then echo armv6z;
3227         elif check_arm_arch 6ZK;      then echo armv6zk;
3228         elif check_arm_arch 6T2;      then echo armv6t2;
3229         elif check_arm_arch 7;        then echo armv7;
3230         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3231         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3232         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3233         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3234         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3235         fi
3236     }
3237
3238     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3239
3240     case $cpu in
3241         armv*)
3242             cpuflags="-march=$cpu"
3243             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3244         ;;
3245         *)
3246             cpuflags="-mcpu=$cpu"
3247             case $cpu in
3248                 cortex-a*)                               subarch=armv7a  ;;
3249                 cortex-r*)                               subarch=armv7r  ;;
3250                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3251                 arm11*)                                  subarch=armv6   ;;
3252                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3253                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3254                 *)                             subarch=$(probe_arm_arch) ;;
3255             esac
3256         ;;
3257     esac
3258
3259     case "$subarch" in
3260         armv5t*)    enable fast_clz                ;;
3261         armv[6-8]*) enable fast_clz fast_unaligned ;;
3262     esac
3263
3264 elif enabled avr32; then
3265
3266     case $cpu in
3267         ap7[02]0[0-2])
3268             subarch="avr32_ap"
3269             cpuflags="-mpart=$cpu"
3270         ;;
3271         ap)
3272             subarch="avr32_ap"
3273             cpuflags="-march=$cpu"
3274         ;;
3275         uc3[ab]*)
3276             subarch="avr32_uc"
3277             cpuflags="-mcpu=$cpu"
3278         ;;
3279         uc)
3280             subarch="avr32_uc"
3281             cpuflags="-march=$cpu"
3282         ;;
3283     esac
3284
3285 elif enabled bfin; then
3286
3287     cpuflags="-mcpu=$cpu"
3288
3289 elif enabled mips; then
3290
3291     cpuflags="-march=$cpu"
3292
3293     case $cpu in
3294         24kc)
3295             disable mipsfpu
3296             disable mipsdspr1
3297             disable mipsdspr2
3298         ;;
3299         24kf*)
3300             disable mipsdspr1
3301             disable mipsdspr2
3302         ;;
3303         24kec|34kc|1004kc)
3304             disable mipsfpu
3305             disable mipsdspr2
3306         ;;
3307         24kef*|34kf*|1004kf*)
3308             disable mipsdspr2
3309         ;;
3310         74kc)
3311             disable mipsfpu
3312         ;;
3313     esac
3314
3315 elif enabled ppc; then
3316
3317     case $(tolower $cpu) in
3318         601|ppc601|powerpc601)
3319             cpuflags="-mcpu=601"
3320             disable altivec
3321         ;;
3322         603*|ppc603*|powerpc603*)
3323             cpuflags="-mcpu=603"
3324             disable altivec
3325         ;;
3326         604*|ppc604*|powerpc604*)
3327             cpuflags="-mcpu=604"
3328             disable altivec
3329         ;;
3330         g3|75*|ppc75*|powerpc75*)
3331             cpuflags="-mcpu=750"
3332             disable altivec
3333         ;;
3334         g4|745*|ppc745*|powerpc745*)
3335             cpuflags="-mcpu=7450"
3336         ;;
3337         74*|ppc74*|powerpc74*)
3338             cpuflags="-mcpu=7400"
3339         ;;
3340         g5|970|ppc970|powerpc970)
3341             cpuflags="-mcpu=970"
3342         ;;
3343         power[3-7]*)
3344             cpuflags="-mcpu=$cpu"
3345         ;;
3346         cell)
3347             cpuflags="-mcpu=cell"
3348             enable ldbrx
3349         ;;
3350         e500mc)
3351             cpuflags="-mcpu=e500mc"
3352             disable altivec
3353         ;;
3354         e500v2)
3355             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3356             disable altivec
3357         ;;
3358         e500)
3359             cpuflags="-mcpu=8540 -mhard-float"
3360             disable altivec
3361         ;;
3362     esac
3363
3364 elif enabled sparc; then
3365
3366     case $cpu in
3367         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3368             cpuflags="-mcpu=$cpu"
3369             disable vis
3370         ;;
3371         ultrasparc*|niagara[234])
3372             cpuflags="-mcpu=$cpu"
3373         ;;
3374     esac
3375
3376 elif enabled x86; then
3377
3378     case $cpu in
3379         i[345]86|pentium)
3380             cpuflags="-march=$cpu"
3381             disable mmx
3382         ;;
3383         # targets that do NOT support nopl and conditional mov (cmov)
3384         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3385             cpuflags="-march=$cpu"
3386             disable i686
3387         ;;
3388         # targets that do support nopl and conditional mov (cmov)
3389         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3390             cpuflags="-march=$cpu"
3391             enable i686
3392             enable fast_cmov
3393         ;;
3394         # targets that do support conditional mov but on which it's slow
3395         pentium4|pentium4m|prescott|nocona)
3396             cpuflags="-march=$cpu"
3397             enable i686
3398             disable fast_cmov
3399         ;;
3400     esac
3401
3402 fi
3403
3404 if [ "$cpu" != generic ]; then
3405     add_cflags  $cpuflags
3406     add_asflags $cpuflags
3407 fi
3408
3409 # compiler sanity check
3410 check_exec <<EOF
3411 int main(void){ return 0; }
3412 EOF
3413 if test "$?" != 0; then
3414     echo "$cc is unable to create an executable file."
3415     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3416         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3417         echo "Only do this if you know what cross compiling means."
3418     fi
3419     die "C compiler test failed."
3420 fi
3421
3422 add_cppflags -D_ISOC99_SOURCE
3423 add_cxxflags -D__STDC_CONSTANT_MACROS
3424 check_cflags -std=c99
3425 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3426 #include <stdlib.h>
3427 EOF
3428 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3429 #include <stdlib.h>
3430 EOF
3431
3432 check_host_cflags -std=c99
3433 check_host_cflags -Wall
3434
3435 check_64bit(){
3436     arch32=$1
3437     arch64=$2
3438     expr=$3
3439     check_code cc "" "int test[2*($expr) - 1]" &&
3440         subarch=$arch64 || subarch=$arch32
3441 }
3442
3443 case "$arch" in
3444     aarch64|alpha|ia64)
3445         spic=$shared
3446     ;;
3447     mips)
3448         check_64bit mips mips64 '_MIPS_SIM > 1'
3449         spic=$shared
3450     ;;
3451     parisc)
3452         check_64bit parisc parisc64 'sizeof(void *) > 4'
3453         spic=$shared
3454     ;;
3455     ppc)
3456         check_64bit ppc ppc64 'sizeof(void *) > 4'
3457         spic=$shared
3458     ;;
3459     sparc)
3460         check_64bit sparc sparc64 'sizeof(void *) > 4'
3461         spic=$shared
3462     ;;
3463     x86)
3464         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3465         if test "$subarch" = "x86_64"; then
3466             spic=$shared
3467         fi
3468     ;;
3469     ppc)
3470         check_cc <<EOF && subarch="ppc64"
3471         int test[(int)sizeof(char*) - 7];
3472 EOF
3473     ;;
3474 esac
3475
3476 enable $subarch
3477 enabled spic && enable_weak pic
3478
3479 # OS specific
3480 case $target_os in
3481     aix)
3482         SHFLAGS=-shared
3483         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3484         enabled shared && add_ldflags -Wl,-brtl
3485         ;;
3486     haiku)
3487         prefix_default="/boot/common"
3488         network_extralibs="-lnetwork"
3489         host_libs=
3490         ;;
3491     sunos)
3492         SHFLAGS='-shared -Wl,-h,$$(@F)'
3493         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3494         network_extralibs="-lsocket -lnsl"
3495         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3496         # When using suncc to build, the Solaris linker will mark
3497         # an executable with each instruction set encountered by
3498         # the Solaris assembler.  As our libraries contain their own
3499         # guards for processor-specific code, instead suppress
3500         # generation of the HWCAPS ELF section on Solaris x86 only.
3501         enabled_all suncc x86 &&
3502             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3503             add_ldflags -Wl,-M,mapfile
3504         nm_default='nm -P -g'
3505         ;;
3506     netbsd)
3507         disable symver
3508         oss_indev_extralibs="-lossaudio"
3509         oss_outdev_extralibs="-lossaudio"
3510         enabled gcc || check_ldflags -Wl,-zmuldefs
3511         ;;
3512     openbsd|bitrig)
3513         disable symver
3514         SHFLAGS='-shared'
3515         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3516         SLIB_INSTALL_LINKS=
3517         oss_indev_extralibs="-lossaudio"
3518         oss_outdev_extralibs="-lossaudio"
3519         ;;
3520     dragonfly)
3521         disable symver
3522         ;;
3523     freebsd)
3524         ;;
3525     bsd/os)
3526         add_extralibs -lpoll -lgnugetopt
3527         strip="strip -d"
3528         ;;
3529     darwin)
3530         gas="gas-preprocessor.pl $cc"
3531         enabled ppc && add_asflags -force_cpusubtype_ALL
3532         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3533         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3534         strip="${strip} -x"
3535         add_ldflags -Wl,-dynamic,-search_paths_first
3536         SLIBSUF=".dylib"
3537         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3538         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3539         objformat="macho"
3540         enabled x86_64 && objformat="macho64"
3541         enabled_any pic shared ||
3542             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3543         ;;
3544     mingw32*)
3545         if test $target_os = "mingw32ce"; then
3546             disable network
3547         else
3548             target_os=mingw32
3549         fi
3550         LIBTARGET=i386
3551         if enabled x86_64; then
3552             LIBTARGET="i386:x86-64"
3553         elif enabled arm; then
3554             LIBTARGET=arm-wince
3555         fi
3556         check_ldflags -Wl,--nxcompat
3557         check_ldflags -Wl,--dynamicbase
3558         shlibdir_default="$bindir_default"
3559         SLIBPREF=""
3560         SLIBSUF=".dll"
3561         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3562         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3563         dlltool="${cross_prefix}dlltool"
3564         if check_cmd lib.exe -list; then
3565             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3566             if enabled x86_64; then
3567                 LIBTARGET=x64
3568             fi
3569         elif check_cmd $dlltool --version; then
3570             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3571         fi
3572         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3573         SLIB_INSTALL_LINKS=
3574         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3575         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3576         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3577         objformat="win32"
3578         ranlib=:
3579         enable dos_paths
3580         ;;
3581     win32|win64)
3582         if enabled shared; then
3583             # Link to the import library instead of the normal static library
3584             # for shared libs.
3585             LD_LIB='%.lib'
3586             # Cannot build both shared and static libs with MSVC or icl.
3587             disable static
3588         fi
3589         shlibdir_default="$bindir_default"
3590         SLIBPREF=""
3591         SLIBSUF=".dll"
3592         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3593         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3594         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3595         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3596         SLIB_INSTALL_LINKS=
3597         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3598         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3599         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3600         objformat="win32"
3601         ranlib=:
3602         enable dos_paths
3603         ;;
3604     cygwin*)
3605         target_os=cygwin
3606         shlibdir_default="$bindir_default"
3607         SLIBPREF="cyg"
3608         SLIBSUF=".dll"
3609         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3610         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3611         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3612         SLIB_INSTALL_LINKS=
3613         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3614         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3615         objformat="win32"
3616         enable dos_paths
3617         ;;
3618     *-dos|freedos|opendos)
3619         network_extralibs="-lsocket"
3620         objformat="coff"
3621         enable dos_paths
3622         add_cppflags -U__STRICT_ANSI__
3623         ;;
3624     linux)
3625         enable dv1394
3626         ;;
3627     irix*)
3628         target_os=irix
3629         ranlib="echo ignoring ranlib"
3630         ;;
3631     os/2*)
3632         strip="lxlite -CS"
3633         ln_s="cp -f"
3634         objformat="aout"
3635         add_cppflags -D_GNU_SOURCE
3636         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3637         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3638         LIBSUF="_s.a"
3639         SLIBPREF=""
3640         SLIBSUF=".dll"
3641         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3642         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3643         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3644             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3645             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3646             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3647             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3648             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3649         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3650             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3651         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3652         enable dos_paths
3653         enable_weak os2threads
3654         ;;
3655     gnu/kfreebsd)
3656         add_cppflags -D_BSD_SOURCE
3657         ;;
3658     gnu)
3659         ;;
3660     qnx)
3661         add_cppflags -D_QNX_SOURCE
3662         network_extralibs="-lsocket"
3663         ;;
3664     symbian)
3665         SLIBSUF=".dll"
3666         enable dos_paths
3667         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3668         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3669         add_ldflags -Wl,--target1-abs,--no-undefined \
3670                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3671                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3672         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3673                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3674                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3675         ;;
3676     osf1)
3677         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3678         ;;
3679     minix)
3680         ;;
3681     plan9)
3682         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3683                      -D_REENTRANT_SOURCE        \
3684                      -D_RESEARCH_SOURCE         \
3685                      -DFD_SETSIZE=96            \
3686                      -DHAVE_SOCK_OPTS
3687         add_compat strtod.o strtod=avpriv_strtod
3688         network_extralibs='-lbsd'
3689         exeobjs=compat/plan9/main.o
3690         disable ffserver
3691         cp_f='cp'
3692         ;;
3693     none)
3694         ;;
3695     *)
3696         die "Unknown OS '$target_os'."
3697         ;;
3698 esac
3699
3700 # determine libc flavour
3701
3702 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3703 if check_cpp_condition features.h "defined __UCLIBC__"; then
3704     libc_type=uclibc
3705     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3706 elif check_cpp_condition features.h "defined __GLIBC__"; then
3707     libc_type=glibc
3708     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3709 # MinGW headers can be installed on Cygwin, so check for newlib first.
3710 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3711     libc_type=newlib
3712     add_cppflags -U__STRICT_ANSI__
3713 elif check_header _mingw.h; then
3714     libc_type=mingw
3715     check_cpp_condition _mingw.h \
3716         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3717             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3718         die "ERROR: MinGW runtime version must be >= 3.15."
3719     add_cppflags -U__STRICT_ANSI__
3720     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3721             __MINGW64_VERSION_MAJOR < 3"; then
3722         add_compat msvcrt/snprintf.o
3723         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3724     else
3725         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3726     fi
3727 elif check_func_headers stdlib.h _get_doserrno; then
3728     libc_type=msvcrt
3729     add_compat strtod.o strtod=avpriv_strtod
3730     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3731                                  _snprintf=avpriv_snprintf  \
3732                                  vsnprintf=avpriv_vsnprintf
3733     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3734     # 0x601 by default unless something else is set by the user.
3735     # This can easily lead to us detecting functions only present
3736     # in such new versions and producing binaries requiring windows 7.0.
3737     # Therefore explicitly set the default to XP unless the user has
3738     # set something else on the command line.
3739     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3740 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3741     libc_type=klibc
3742 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3743     libc_type=bionic
3744     add_compat strtod.o strtod=avpriv_strtod
3745 fi
3746
3747 test -n "$libc_type" && enable $libc_type
3748
3749 # hacks for compiler/libc/os combinations
3750
3751 if enabled_all tms470 glibc; then
3752     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3753     add_cppflags -D__USER_LABEL_PREFIX__=
3754     add_cppflags -D__builtin_memset=memset
3755     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3756     add_cflags   -pds=48    # incompatible redefinition of macro
3757 fi
3758
3759 if enabled_all ccc glibc; then
3760     add_ldflags -Wl,-z,now  # calls to libots crash without this
3761 fi
3762
3763 esc(){
3764     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3765 }
3766
3767 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3768
3769 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3770
3771 set_default $PATHS_LIST
3772 set_default nm
3773
3774 # we need to build at least one lib type
3775 if ! enabled_any static shared; then
3776     cat <<EOF
3777 At least one library type must be built.
3778 Specify --enable-static to build the static libraries or --enable-shared to
3779 build the shared libraries as well. To only build the shared libraries specify
3780 --disable-static in addition to --enable-shared.
3781 EOF
3782     exit 1;
3783 fi
3784
3785 # backward compatibility layer for incompatible_libav/fork_abi
3786 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3787 enabled incompatible_libav_abi && enable incompatible_fork_abi
3788
3789 die_license_disabled() {
3790     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3791 }
3792
3793 die_license_disabled_gpl() {
3794     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3795 }
3796
3797 die_license_disabled gpl frei0r
3798 die_license_disabled gpl libcdio
3799 die_license_disabled gpl libutvideo
3800 die_license_disabled gpl libvidstab
3801 die_license_disabled gpl libx264
3802 die_license_disabled gpl libxavs
3803 die_license_disabled gpl libxvid
3804 die_license_disabled gpl libzvbi
3805 die_license_disabled gpl x11grab
3806
3807 die_license_disabled nonfree libaacplus
3808 die_license_disabled nonfree libfaac
3809 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3810 enabled gpl && die_license_disabled_gpl nonfree openssl
3811
3812 die_license_disabled version3 libopencore_amrnb
3813 die_license_disabled version3 libopencore_amrwb
3814 die_license_disabled version3 libvo_aacenc
3815 die_license_disabled version3 libvo_amrwbenc
3816
3817 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3818
3819 disabled optimizations || check_cflags -fomit-frame-pointer
3820
3821 enable_weak_pic() {
3822     disabled pic && return
3823     enable pic
3824     add_cppflags -DPIC
3825     case "$target_os" in
3826     mingw*|cygwin*)
3827         ;;
3828     *)
3829         add_cflags -fPIC
3830         ;;
3831     esac
3832     add_asflags  -fPIC
3833 }
3834
3835 enabled pic && enable_weak_pic
3836
3837 check_cc <<EOF || die "Symbol mangling check failed."
3838 int ff_extern;
3839 EOF
3840 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3841 extern_prefix=${sym%%ff_extern*}
3842
3843 check_cc <<EOF && enable_weak inline_asm
3844 void foo(void) { __asm__ volatile ("" ::); }
3845 EOF
3846
3847 _restrict=
3848 for restrict_keyword in restrict __restrict__ __restrict; do
3849     check_cc <<EOF && _restrict=$restrict_keyword && break
3850 void foo(char * $restrict_keyword p);
3851 EOF
3852 done
3853
3854 check_cc <<EOF && enable pragma_deprecated
3855 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3856 EOF
3857
3858 check_cc <<EOF && enable attribute_packed
3859 struct { int x; } __attribute__((packed)) x;
3860 EOF
3861
3862 check_cc <<EOF && enable attribute_may_alias
3863 union { int x; } __attribute__((may_alias)) x;
3864 EOF
3865
3866 check_cc <<EOF || die "endian test failed"
3867 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3868 EOF
3869 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3870
3871 check_inline_asm inline_asm_labels '"1:\n"'
3872
3873 if enabled alpha; then
3874
3875     check_cflags -mieee
3876
3877 elif enabled arm; then
3878
3879     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3880 float func(float a, float b){ return a+b; }
3881 EOF
3882
3883     enabled thumb && check_cflags -mthumb || check_cflags -marm
3884     nogas=die
3885
3886     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3887         enable vfp_args
3888     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3889         case "${cross_prefix:-$cc}" in
3890             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3891             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3892 __asm__ (".eabi_attribute 28, 1");
3893 int main(void) { return 0; }
3894 EOF
3895         esac
3896         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3897     fi
3898
3899     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3900     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3901     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3902     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3903     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3904     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3905
3906     [ $target_os = linux ] ||
3907         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3908             $ARCH_EXT_LIST_ARM
3909
3910     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3911     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3912
3913     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3914
3915 elif enabled mips; then
3916
3917     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3918     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3919      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3920     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3921      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3922     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3923      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3924     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3925      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3926
3927 elif enabled parisc; then
3928
3929     if enabled gcc; then
3930         case $($cc -dumpversion) in
3931             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3932         esac
3933     fi
3934
3935 elif enabled ppc; then
3936
3937     enable local_aligned_8 local_aligned_16
3938
3939     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3940     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3941     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3942     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3943
3944     # AltiVec flags: The FSF version of GCC differs from the Apple version
3945     if enabled altivec; then
3946         if ! enabled_any pic ppc64; then
3947             nogas=warn
3948         fi
3949         check_cflags -maltivec -mabi=altivec &&
3950         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3951         check_cflags -faltivec
3952
3953         # check if our compiler supports Motorola AltiVec C API
3954         check_cc <<EOF || disable altivec
3955 $inc_altivec_h
3956 int main(void) {
3957     vector signed int v1 = (vector signed int) { 0 };
3958     vector signed int v2 = (vector signed int) { 1 };
3959     v1 = vec_add(v1, v2);
3960     return 0;
3961 }
3962 EOF
3963
3964         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3965     fi
3966
3967 elif enabled sparc; then
3968
3969     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3970
3971 elif enabled x86; then
3972
3973     check_builtin rdtsc    intrin.h   "__rdtsc()"
3974     check_builtin mm_empty mmintrin.h "_mm_empty()"
3975
3976     enable local_aligned_8 local_aligned_16
3977
3978     # check whether EBP is available on x86
3979     # As 'i' is stored on the stack, this program will crash
3980     # if the base pointer is used to access it because the
3981     # base pointer is cleared in the inline assembly code.
3982     check_exec_crash <<EOF && enable ebp_available
3983 volatile int i=0;
3984 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3985 return i;
3986 EOF
3987
3988     # check whether EBX is available on x86
3989     check_inline_asm ebx_available '""::"b"(0)' &&
3990         check_inline_asm ebx_available '"":::"%ebx"'
3991
3992     # check whether xmm clobbers are supported
3993     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3994
3995     # check whether binutils is new enough to compile SSSE3/MMXEXT
3996     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3997     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3998
3999     if ! disabled_any asm mmx yasm; then
4000         if check_cmd $yasmexe --version; then
4001             enabled x86_64 && yasm_extra="-m amd64"
4002             yasm_debug="-g dwarf2"
4003         elif check_cmd nasm -v; then
4004             yasmexe=nasm
4005             yasm_debug="-g -F dwarf"
4006             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4007         fi
4008
4009         YASMFLAGS="-f $objformat $yasm_extra"
4010         enabled pic               && append YASMFLAGS "-DPIC"
4011         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4012         case "$objformat" in
4013             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4014         esac
4015
4016         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
4017             die "yasm not found, use --disable-yasm for a crippled build"
4018         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4019         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4020         check_yasm "CPU amdnop" && enable cpunop
4021     fi
4022
4023     case "$cpu" in
4024         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4025             disable fast_clz
4026         ;;
4027     esac
4028
4029 fi
4030
4031 if enabled asm; then
4032     as=${gas:=$as}
4033     check_as <<EOF && enable gnu_as || \
4034         $nogas "GNU assembler not found, install gas-preprocessor"
4035 .macro m n
4036 \n: .int 0
4037 .endm
4038 m x
4039 EOF
4040 fi
4041
4042 check_ldflags -Wl,--as-needed
4043
4044 if check_func dlopen; then
4045     ldl=
4046 elif check_func dlopen -ldl; then
4047     ldl=-ldl
4048 fi
4049
4050 if ! disabled network; then
4051     check_type "sys/types.h sys/socket.h" socklen_t
4052     check_type netdb.h "struct addrinfo"
4053     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4054     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4055     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4056     check_type netinet/in.h "struct sockaddr_in6"
4057     check_type poll.h "struct pollfd"
4058     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4059     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4060     check_type netinet/sctp.h "struct sctp_event_subscribe"
4061     check_func getaddrinfo $network_extralibs
4062     check_func getservbyport $network_extralibs
4063     # Prefer arpa/inet.h over winsock2
4064     if check_header arpa/inet.h ; then
4065         check_func closesocket
4066     elif check_header winsock2.h ; then
4067         check_func_headers winsock2.h closesocket -lws2 &&
4068             network_extralibs="-lws2" ||
4069         { check_func_headers winsock2.h closesocket -lws2_32 &&
4070             network_extralibs="-lws2_32"; }
4071         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4072         check_type ws2tcpip.h socklen_t
4073         check_type ws2tcpip.h "struct addrinfo"
4074         check_type ws2tcpip.h "struct group_source_req"
4075         check_type ws2tcpip.h "struct ip_mreq_source"
4076         check_type ws2tcpip.h "struct ipv6_mreq"
4077         check_type winsock2.h "struct pollfd"
4078         check_type ws2tcpip.h "struct sockaddr_in6"
4079         check_type ws2tcpip.h "struct sockaddr_storage"
4080         check_struct winsock2.h "struct sockaddr" sa_len
4081     else
4082         disable network
4083     fi
4084 fi
4085
4086 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4087 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4088
4089 check_func  access
4090 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4091 check_func  fcntl
4092 check_func  fork
4093 check_func_headers stdlib.h getenv
4094 check_func  gethrtime
4095 check_func  getopt
4096 check_func  getrusage
4097 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4098 check_func  gettimeofday
4099 check_func  inet_aton $network_extralibs
4100 check_func  isatty
4101 check_func  localtime_r
4102 check_func  ${malloc_prefix}memalign            && enable memalign
4103 check_func  mkstemp
4104 check_func  mmap
4105 check_func  mprotect
4106 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4107 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4108 check_func  setrlimit
4109 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4110 check_func  strerror_r
4111 check_func  sched_getaffinity
4112 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4113 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4114 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4115 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4116 check_builtin sarestart signal.h "SA_RESTART"
4117 check_func  sysconf
4118 check_func  sysctl
4119 check_func  usleep
4120 check_func_headers conio.h kbhit
4121 check_func_headers windows.h PeekNamedPipe
4122 check_func_headers io.h setmode
4123 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4124 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4125 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4126 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4127 check_func_headers windows.h GetProcessAffinityMask
4128 check_func_headers windows.h GetProcessTimes
4129 check_func_headers windows.h GetSystemTimeAsFileTime
4130 check_func_headers windows.h MapViewOfFile
4131 check_func_headers windows.h SetConsoleTextAttribute
4132 check_func_headers windows.h Sleep
4133 check_func_headers windows.h VirtualAlloc
4134 check_func_headers glob.h glob
4135 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4136
4137 check_header cl/cl.h
4138 check_header direct.h
4139 check_header dlfcn.h
4140 check_header dxva.h
4141 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4142 check_header io.h
4143 check_header libcrystalhd/libcrystalhd_if.h
4144 check_header malloc.h
4145 check_header poll.h
4146 check_header sys/mman.h
4147 check_header sys/param.h
4148 check_header sys/resource.h
4149 check_header sys/select.h
4150 check_header sys/time.h
4151 check_header sys/un.h
4152 check_header termios.h
4153 check_header unistd.h
4154 check_header vdpau/vdpau.h
4155 check_header vdpau/vdpau_x11.h
4156 check_header VideoDecodeAcceleration/VDADecoder.h
4157 check_header windows.h
4158 check_header X11/extensions/XvMClib.h
4159 check_header asm/types.h
4160
4161 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4162 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4163
4164 if ! disabled w32threads && ! enabled pthreads; then
4165     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4166 fi
4167
4168 # check for some common methods of building with pthread support
4169 # do this before the optional library checks as some of them require pthreads
4170 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4171     enable pthreads
4172     if check_func pthread_create; then
4173         :
4174     elif check_func pthread_create -pthread; then
4175         add_cflags -pthread
4176         add_extralibs -pthread
4177     elif check_func pthread_create -pthreads; then
4178         add_cflags -pthreads
4179         add_extralibs -pthreads
4180     elif check_func pthread_create -lpthreadGC2; then
4181         add_extralibs -lpthreadGC2
4182     elif ! check_lib pthread.h pthread_create -lpthread; then
4183         disable pthreads
4184     fi
4185 fi
4186
4187 for thread in $THREADS_LIST; do
4188     if enabled $thread; then
4189         test -n "$thread_type" &&
4190             die "ERROR: Only one thread type must be selected." ||
4191             thread_type="$thread"
4192     fi
4193 done
4194
4195 if enabled pthreads; then
4196   check_func pthread_cancel
4197 fi
4198
4199 enabled sync_val_compare_and_swap && enable atomics_gcc
4200 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4201 enabled MemoryBarrier && enable atomics_win32
4202
4203 check_lib math.h sin -lm && LIBM="-lm"
4204 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4205
4206 atan2f_args=2
4207 ldexpf_args=2
4208 powf_args=2
4209
4210 for func in $MATH_FUNCS; do
4211     eval check_mathfunc $func \${${func}_args:-1}
4212 done
4213
4214 # these are off by default, so fail if requested and not available
4215 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4216                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4217                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4218 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4219 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4220 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4221 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4222 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4223 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4224 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4225 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4226 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4227                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4228                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4229 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4230 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4231 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4232 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"
4233 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4234 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4235 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4236 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4237                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4238                                done || die "ERROR: libgsm not found"; }
4239 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4240 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4241 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4242 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4243 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4244 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4245 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4246 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4247                                check_lib openjpeg.h opj_version -lopenjpeg ||
4248                                die "ERROR: libopenjpeg not found"; }
4249 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4250 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4251 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4252 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4253 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4254 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4255 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4256 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4257 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4258 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4259     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4260     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4261 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4262 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4263                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4264                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4265 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4266 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4267 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4268 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4269 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4270 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4271 enabled libvpx            && {
4272     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4273                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4274     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 ||
4275                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4276     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4277     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4278 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4279 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4280                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4281                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4282 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4283 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4284 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4285 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4286 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4287                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4288                                die "ERROR: openal not found"; } &&
4289                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4290                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4291 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4292                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4293                                die "ERROR: opencl not found"; } &&
4294                              { ! enabled_any w32threads os2threads ||
4295                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4296                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4297                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4298                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4299 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4300                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4301                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4302                                die "ERROR: openssl not found"; }
4303
4304 if enabled gnutls; then
4305     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4306     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4307 fi
4308
4309 # libdc1394 check
4310 if enabled libdc1394; then
4311     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4312         enable libdc1394_2; } ||
4313     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4314         enable libdc1394_1; } ||
4315     die "ERROR: No version of libdc1394 found "
4316 fi
4317
4318 SDL_CONFIG="${cross_prefix}sdl-config"
4319 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4320     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4321     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4322     enable sdl
4323 else
4324   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4325     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4326     sdl_libs=$("${SDL_CONFIG}" --libs)
4327     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4328     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4329     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4330     enable sdl
4331   fi
4332 fi
4333 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4334
4335 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4336 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4337 perl --version > /dev/null 2>&1 && enable perl || disable perl
4338 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4339 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4340
4341 check_header linux/fb.h
4342 check_header linux/videodev.h
4343 check_header linux/videodev2.h
4344 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4345
4346 check_header sys/videoio.h
4347
4348 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4349 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4350 # w32api 3.12 had it defined wrong
4351 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4352
4353 check_type "dshow.h" IBaseFilter
4354
4355 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4356 { check_header dev/bktr/ioctl_meteor.h &&
4357   check_header dev/bktr/ioctl_bt848.h; } ||
4358 { check_header machine/ioctl_meteor.h &&
4359   check_header machine/ioctl_bt848.h; } ||
4360 { check_header dev/video/meteor/ioctl_meteor.h &&
4361   check_header dev/video/bktr/ioctl_bt848.h; } ||
4362 check_header dev/ic/bt8xx.h
4363
4364 check_header sndio.h
4365 if check_struct sys/soundcard.h audio_buf_info bytes; then
4366     enable_safe sys/soundcard.h
4367 else
4368     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4369     #include <sys/soundcard.h>
4370     audio_buf_info abc;
4371 EOF
4372 fi
4373 check_header soundcard.h
4374
4375 enabled_any alsa_indev alsa_outdev &&
4376     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4377
4378 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4379     check_func jack_port_get_latency_range -ljack
4380
4381 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4382
4383 if enabled libcdio; then
4384     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4385     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4386     die "ERROR: libcdio-paranoia not found"
4387 fi
4388
4389 enabled x11grab                                           &&
4390 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4391 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4392 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4393
4394 enabled vaapi &&
4395     check_lib va/va.h vaInitialize -lva ||
4396     disable vaapi
4397
4398 enabled vdpau &&
4399     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4400     disable vdpau
4401
4402 # Funny iconv installations are not unusual, so check it after all flags have been set
4403 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4404
4405 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4406
4407 # add some useful compiler flags if supported
4408 check_cflags -Wdeclaration-after-statement
4409 check_cflags -Wall
4410 check_cflags -Wno-parentheses
4411 check_cflags -Wno-switch
4412 check_cflags -Wno-format-zero-length
4413 check_cflags -Wdisabled-optimization
4414 check_cflags -Wpointer-arith
4415 check_cflags -Wredundant-decls
4416 check_cflags -Wno-pointer-sign
4417 check_cflags -Wwrite-strings
4418 check_cflags -Wtype-limits
4419 check_cflags -Wundef
4420 check_cflags -Wmissing-prototypes
4421 check_cflags -Wno-pointer-to-int-cast
4422 check_cflags -Wstrict-prototypes
4423 enabled extra_warnings && check_cflags -Winline
4424
4425 # add some linker flags
4426 check_ldflags -Wl,--warn-common
4427 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4428 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4429
4430 enabled xmm_clobber_test &&
4431     check_ldflags -Wl,--wrap,avcodec_open2              \
4432                   -Wl,--wrap,avcodec_decode_audio4      \
4433                   -Wl,--wrap,avcodec_decode_video2      \
4434                   -Wl,--wrap,avcodec_decode_subtitle2   \
4435                   -Wl,--wrap,avcodec_encode_audio2      \
4436                   -Wl,--wrap,avcodec_encode_video       \
4437                   -Wl,--wrap,avcodec_encode_video2      \
4438                   -Wl,--wrap,avcodec_encode_subtitle    \
4439                   -Wl,--wrap,sws_scale ||
4440     disable xmm_clobber_test
4441
4442 echo "X{};" > $TMPV
4443 if test_ldflags -Wl,--version-script,$TMPV; then
4444     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4445     check_cc <<EOF && enable symver_asm_label
4446 void ff_foo(void) __asm__ ("av_foo@VERSION");
4447 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4448 EOF
4449     check_cc <<EOF && enable symver_gnu_asm
4450 __asm__(".symver ff_foo,av_foo@VERSION");
4451 void ff_foo(void) {}
4452 EOF
4453 fi
4454
4455 if [ -z "$optflags" ]; then
4456     if enabled small; then
4457         optflags=$cflags_size
4458     elif enabled optimizations; then
4459         optflags=$cflags_speed
4460     else
4461         optflags=$cflags_noopt
4462     fi
4463 fi
4464
4465 check_optflags(){
4466     check_cflags "$@"
4467     enabled lto && check_ldflags "$@"
4468 }
4469
4470
4471 if enabled lto; then
4472     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4473     check_cflags  -flto
4474     check_ldflags -flto $cpuflags
4475 fi
4476
4477 check_optflags $optflags
4478 check_optflags -fno-math-errno
4479 check_optflags -fno-signed-zeros
4480
4481 enabled ftrapv && check_cflags -ftrapv
4482
4483 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4484 int x;
4485 EOF
4486
4487
4488 if enabled icc; then
4489     # Just warnings, no remarks
4490     check_cflags -w1
4491     # -wd: Disable following warnings
4492     # 144, 167, 556: -Wno-pointer-sign
4493     # 188: enumerated type mixed with another type
4494     # 1292: attribute "foo" ignored
4495     # 1419: external declaration in primary source file
4496     # 10006: ignoring unknown option -fno-signed-zeros
4497     # 10148: ignoring unknown option -Wno-parentheses
4498     # 10156: ignoring option '-W'; no argument required
4499     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4500     # 11030: Warning unknown option --as-needed
4501     # 10156: ignoring option '-export'; no argument required
4502     check_ldflags -wd10156,11030
4503     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4504     enable ebp_available
4505     if enabled x86_32; then
4506         icc_version=$($cc -dumpversion)
4507         test ${icc_version%%.*} -ge 11 &&
4508             check_cflags -falign-stack=maintain-16-byte ||
4509             disable aligned_stack
4510     fi
4511 elif enabled ccc; then
4512     # disable some annoying warnings
4513     add_cflags -msg_disable bitnotint
4514     add_cflags -msg_disable mixfuncvoid
4515     add_cflags -msg_disable nonstandcast
4516     add_cflags -msg_disable unsupieee
4517 elif enabled gcc; then
4518     check_optflags -fno-tree-vectorize
4519     check_cflags -Werror=implicit-function-declaration
4520     check_cflags -Werror=missing-prototypes
4521     check_cflags -Werror=return-type
4522     check_cflags -Werror=vla
4523 elif enabled llvm_gcc; then
4524     check_cflags -mllvm -stack-alignment=16
4525 elif enabled clang; then
4526     check_cflags -mllvm -stack-alignment=16
4527     check_cflags -Qunused-arguments
4528     check_cflags -Werror=implicit-function-declaration
4529     check_cflags -Werror=missing-prototypes
4530     check_cflags -Werror=return-type
4531 elif enabled cparser; then
4532     add_cflags -Wno-missing-variable-declarations
4533     add_cflags -Wno-empty-statement
4534 elif enabled armcc; then
4535     # 2523: use of inline assembler is deprecated
4536     add_cflags -W${armcc_opt},--diag_suppress=2523
4537     add_cflags -W${armcc_opt},--diag_suppress=1207
4538     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4539     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4540     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4541     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4542 elif enabled tms470; then
4543     add_cflags -pds=824 -pds=837
4544 elif enabled pathscale; then
4545     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4546 elif enabled_any msvc icl; then
4547     enabled x86_32 && disable aligned_stack
4548     enabled_all x86_32 debug && add_cflags -Oy-
4549     enabled debug && add_ldflags -debug
4550     enable pragma_deprecated
4551     if enabled icl; then
4552         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4553         # (correctly) on icl 13.x.
4554         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4555             add_cflags -Qansi-alias
4556         # icl will pass the inline asm tests but inline asm is currently
4557         # not supported (build will fail)
4558         disable inline_asm
4559     fi
4560 fi
4561
4562 case $target_os in
4563     osf1)
4564         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4565     ;;
4566     plan9)
4567         add_cppflags -Dmain=plan9_main
4568     ;;
4569 esac
4570
4571 enable frame_thread_encoder
4572 enabled_any $THREADS_LIST      && enable threads
4573 enabled_any $ATOMICS_LIST      && enable atomics_native
4574
4575 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4576
4577 check_deps $CONFIG_LIST       \
4578            $CONFIG_EXTRA      \
4579            $HAVE_LIST         \
4580            $ALL_COMPONENTS    \
4581
4582
4583 if test $target_os = "haiku"; then
4584     disable memalign
4585     disable posix_memalign
4586 fi
4587
4588 ! enabled_any memalign posix_memalign aligned_malloc &&
4589     enabled_any $need_memalign && enable memalign_hack
4590
4591 # add_dep lib dep
4592 # -> enable ${lib}_deps_${dep}
4593 # -> add $dep to ${lib}_deps only once
4594 add_dep() {
4595     lib=$1
4596     dep=$2
4597     enabled "${lib}_deps_${dep}" && return 0
4598     enable  "${lib}_deps_${dep}"
4599     prepend "${lib}_deps" $dep
4600 }
4601
4602 # merge deps lib components
4603 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4604 merge_deps() {
4605     lib=$1
4606     shift
4607     for comp in $*; do
4608         enabled $comp || continue
4609         eval "dep=\"\$${comp}_deps\""
4610         for d in $dep; do
4611             add_dep $lib $d
4612         done
4613     done
4614 }
4615
4616 merge_deps libavfilter $FILTER_LIST
4617
4618 echo "install prefix            $prefix"
4619 echo "source path               $source_path"
4620 echo "C compiler                $cc"
4621 echo "ARCH                      $arch ($cpu)"
4622 if test "$build_suffix" != ""; then
4623     echo "build suffix              $build_suffix"
4624 fi
4625 if test "$progs_suffix" != ""; then
4626     echo "progs suffix              $progs_suffix"
4627 fi
4628 if test "$extra_version" != ""; then
4629     echo "version string suffix     $extra_version"
4630 fi
4631 echo "big-endian                ${bigendian-no}"
4632 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4633 if enabled x86; then
4634     echo "${yasmexe}                      ${yasm-no}"
4635     echo "MMX enabled               ${mmx-no}"
4636     echo "MMXEXT enabled            ${mmxext-no}"
4637     echo "3DNow! enabled            ${amd3dnow-no}"
4638     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4639     echo "SSE enabled               ${sse-no}"
4640     echo "SSSE3 enabled             ${ssse3-no}"
4641     echo "AVX enabled               ${avx-no}"
4642     echo "FMA4 enabled              ${fma4-no}"
4643     echo "i686 features enabled     ${i686-no}"
4644     echo "CMOV is fast              ${fast_cmov-no}"
4645     echo "EBX available             ${ebx_available-no}"
4646     echo "EBP available             ${ebp_available-no}"
4647 fi
4648 if enabled arm; then
4649     echo "ARMv5TE enabled           ${armv5te-no}"
4650     echo "ARMv6 enabled             ${armv6-no}"
4651     echo "ARMv6T2 enabled           ${armv6t2-no}"
4652     echo "VFP enabled               ${vfp-no}"
4653     echo "NEON enabled              ${neon-no}"
4654     echo "THUMB enabled             ${thumb-no}"
4655 fi
4656 if enabled mips; then
4657     echo "MIPS FPU enabled          ${mipsfpu-no}"
4658     echo "MIPS32R2 enabled          ${mips32r2-no}"
4659     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4660     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4661 fi
4662 if enabled ppc; then
4663     echo "AltiVec enabled           ${altivec-no}"
4664     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4665     echo "dcbzl available           ${dcbzl-no}"
4666 fi
4667 if enabled sparc; then
4668     echo "VIS enabled               ${vis-no}"
4669 fi
4670 echo "debug symbols             ${debug-no}"
4671 echo "strip symbols             ${stripping-no}"
4672 echo "optimize for size         ${small-no}"
4673 echo "optimizations             ${optimizations-no}"
4674 echo "static                    ${static-no}"
4675 echo "shared                    ${shared-no}"
4676 echo "postprocessing support    ${postproc-no}"
4677 echo "new filter support        ${avfilter-no}"
4678 echo "network support           ${network-no}"
4679 echo "threading support         ${thread_type-no}"
4680 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4681 echo "SDL support               ${sdl-no}"
4682 echo "opencl enabled            ${opencl-no}"
4683 echo "libzvbi enabled           ${libzvbi-no}"
4684 echo "texi2html enabled         ${texi2html-no}"
4685 echo "perl enabled              ${perl-no}"
4686 echo "pod2man enabled           ${pod2man-no}"
4687 echo "makeinfo enabled          ${makeinfo-no}"
4688 test -n "$random_seed" &&
4689     echo "random seed               ${random_seed}"
4690 echo
4691
4692 echo "External libraries:"
4693 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4694 echo
4695
4696 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4697     echo "Enabled ${type}s:"
4698     eval list=\$$(toupper $type)_LIST
4699     print_enabled '_*' $list | print_3_columns
4700     echo
4701 done
4702
4703 license="LGPL version 2.1 or later"
4704 if enabled nonfree; then
4705     license="nonfree and unredistributable"
4706 elif enabled gplv3; then
4707     license="GPL version 3 or later"
4708 elif enabled lgplv3; then
4709     license="LGPL version 3 or later"
4710 elif enabled gpl; then
4711     license="GPL version 2 or later"
4712 fi
4713
4714 echo "License: $license"
4715
4716 echo "Creating config.mak, config.h, and doc/config.texi..."
4717
4718 test -e Makefile || $ln_s "$source_path/Makefile" .
4719
4720 enabled stripping || strip="echo skipping strip"
4721
4722 config_files="$TMPH config.mak doc/config.texi"
4723
4724 cat > config.mak <<EOF
4725 # Automatically generated by configure - do not modify!
4726 ifndef FFMPEG_CONFIG_MAK
4727 FFMPEG_CONFIG_MAK=1
4728 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4729 prefix=$prefix
4730 LIBDIR=\$(DESTDIR)$libdir
4731 SHLIBDIR=\$(DESTDIR)$shlibdir
4732 INCDIR=\$(DESTDIR)$incdir
4733 BINDIR=\$(DESTDIR)$bindir
4734 DATADIR=\$(DESTDIR)$datadir
4735 DOCDIR=\$(DESTDIR)$docdir
4736 MANDIR=\$(DESTDIR)$mandir
4737 SRC_PATH=$source_path
4738 ifndef MAIN_MAKEFILE
4739 SRC_PATH:=\$(SRC_PATH:.%=..%)
4740 endif
4741 CC_IDENT=$cc_ident
4742 ARCH=$arch
4743 CC=$cc
4744 CXX=$cxx
4745 AS=$as
4746 LD=$ld
4747 DEPCC=$dep_cc
4748 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4749 DEPAS=$as
4750 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4751 YASM=$yasmexe
4752 DEPYASM=$yasmexe
4753 AR=$ar
4754 ARFLAGS=$arflags
4755 AR_O=$ar_o
4756 RANLIB=$ranlib
4757 CP=cp -p
4758 LN_S=$ln_s
4759 STRIP=$strip
4760 CPPFLAGS=$CPPFLAGS
4761 CFLAGS=$CFLAGS
4762 CXXFLAGS=$CXXFLAGS
4763 ASFLAGS=$ASFLAGS
4764 AS_C=$AS_C
4765 AS_O=$AS_O
4766 CC_C=$CC_C
4767 CC_E=$CC_E
4768 CC_O=$CC_O
4769 CXX_C=$CXX_C
4770 CXX_O=$CXX_O
4771 LD_O=$LD_O
4772 LD_LIB=$LD_LIB
4773 LD_PATH=$LD_PATH
4774 DLLTOOL=$dlltool
4775 LDFLAGS=$LDFLAGS
4776 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4777 YASMFLAGS=$YASMFLAGS
4778 BUILDSUF=$build_suffix
4779 PROGSSUF=$progs_suffix
4780 FULLNAME=$FULLNAME
4781 LIBPREF=$LIBPREF
4782 LIBSUF=$LIBSUF
4783 LIBNAME=$LIBNAME
4784 SLIBPREF=$SLIBPREF
4785 SLIBSUF=$SLIBSUF
4786 EXESUF=$EXESUF
4787 EXTRA_VERSION=$extra_version
4788 CCDEP=$CCDEP
4789 CXXDEP=$CXXDEP
4790 CCDEP_FLAGS=$CCDEP_FLAGS
4791 ASDEP=$ASDEP
4792 ASDEP_FLAGS=$ASDEP_FLAGS
4793 CC_DEPFLAGS=$CC_DEPFLAGS
4794 AS_DEPFLAGS=$AS_DEPFLAGS
4795 HOSTCC=$host_cc
4796 HOSTLD=$host_ld
4797 HOSTCFLAGS=$host_cflags
4798 HOSTCPPFLAGS=$host_cppflags
4799 HOSTEXESUF=$HOSTEXESUF
4800 HOSTLDFLAGS=$host_ldflags
4801 HOSTLIBS=$host_libs
4802 DEPHOSTCC=$host_cc
4803 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4804 HOSTCCDEP=$HOSTCCDEP
4805 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4806 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4807 HOSTCC_C=$HOSTCC_C
4808 HOSTCC_O=$HOSTCC_O
4809 HOSTLD_O=$HOSTLD_O
4810 TARGET_EXEC=$target_exec $target_exec_args
4811 TARGET_PATH=$target_path
4812 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4813 LIBS-ffplay=$sdl_libs
4814 CFLAGS-ffplay=$sdl_cflags
4815 ZLIB=$($ldflags_filter -lz)
4816 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4817 EXTRALIBS=$extralibs
4818 COMPAT_OBJS=$compat_objs
4819 EXEOBJS=$exeobjs
4820 INSTALL=$install
4821 LIBTARGET=${LIBTARGET}
4822 SLIBNAME=${SLIBNAME}
4823 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4824 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4825 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4826 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4827 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4828 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4829 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4830 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4831 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4832 NOREDZONE_FLAGS=$noredzone_flags
4833 EOF
4834
4835 get_version(){
4836     lcname=lib${1}
4837     name=$(toupper $lcname)
4838     file=$source_path/$lcname/version.h
4839     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4840     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4841     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4842     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4843     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4844 }
4845
4846 map 'get_version $v' $LIBRARY_LIST
4847
4848 cat > $TMPH <<EOF
4849 /* Automatically generated by configure - do not modify! */
4850 #ifndef FFMPEG_CONFIG_H
4851 #define FFMPEG_CONFIG_H
4852 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4853 #define FFMPEG_LICENSE "$(c_escape $license)"
4854 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4855 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4856 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4857 #define av_restrict $_restrict
4858 #define EXTERN_PREFIX "${extern_prefix}"
4859 #define EXTERN_ASM ${extern_prefix}
4860 #define SLIBSUF "$SLIBSUF"
4861 #define HAVE_MMX2 HAVE_MMXEXT
4862 EOF
4863
4864 test -n "$assert_level" &&
4865     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4866
4867 test -n "$malloc_prefix" &&
4868     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4869
4870 if enabled yasm; then
4871     append config_files $TMPASM
4872     printf '' >$TMPASM
4873 fi
4874
4875 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4876
4877
4878 mkdir -p doc
4879 echo "@c auto-generated by configure" > doc/config.texi
4880
4881 print_config ARCH_   "$config_files" $ARCH_LIST
4882 print_config HAVE_   "$config_files" $HAVE_LIST
4883 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4884                                      $CONFIG_EXTRA      \
4885                                      $ALL_COMPONENTS    \
4886
4887 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4888 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4889
4890 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4891 cp_if_changed $TMPH config.h
4892 touch .config
4893
4894 enabled yasm && cp_if_changed $TMPASM config.asm
4895
4896 cat > $TMPH <<EOF
4897 /* Generated by ffconf */
4898 #ifndef AVUTIL_AVCONFIG_H
4899 #define AVUTIL_AVCONFIG_H
4900 EOF
4901
4902 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4903
4904 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4905
4906 cp_if_changed $TMPH libavutil/avconfig.h
4907
4908 if test -n "$WARNINGS"; then
4909     printf "\n$WARNINGS"
4910     enabled fatal_warnings && exit 1
4911 fi
4912
4913 # build pkg-config files
4914
4915 pkgconfig_generate(){
4916     name=$1
4917     shortname=${name#lib}${build_suffix}
4918     comment=$2
4919     version=$3
4920     libs=$4
4921     requires=$5
4922     enabled ${name#lib} || return 0
4923     mkdir -p $name
4924     cat <<EOF > $name/$name${build_suffix}.pc
4925 prefix=$prefix
4926 exec_prefix=\${prefix}
4927 libdir=$libdir
4928 includedir=$incdir
4929
4930 Name: $name
4931 Description: $comment
4932 Version: $version
4933 Requires: $(enabled shared || echo $requires)
4934 Requires.private: $(enabled shared && echo $requires)
4935 Conflicts:
4936 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4937 Libs.private: $(enabled shared && echo $libs)
4938 Cflags: -I\${includedir}
4939 EOF
4940
4941 mkdir -p doc/examples/pc-uninstalled
4942 includedir=${source_path}
4943 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4944     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4945 prefix=
4946 exec_prefix=
4947 libdir=\${pcfiledir}/../../../$name
4948 includedir=${includedir}
4949
4950 Name: $name
4951 Description: $comment
4952 Version: $version
4953 Requires: $requires
4954 Conflicts:
4955 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4956 Cflags: -I\${includedir}
4957 EOF
4958 }
4959
4960 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4961 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4962 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4963 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4964 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4965 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4966 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4967 lavfi_libs=${lavfi_libs%, }
4968
4969 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4970 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4971
4972 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
4973 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4974 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4975 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
4976 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4977 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4978 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4979 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4980 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4981
4982 fix_ffmpeg_remote(){
4983     git_remote_from=$1
4984     git_remote_to=$2
4985     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4986     if [ "$fixme_remote" != "" ]; then
4987         echolog "
4988 Outdated domain in git config, the official domain for ffmpeg git is since
4989 November 2011, source.ffmpeg.org, both the old and the new point to the same
4990 repository and server. To update it enter the following commands:
4991 "
4992         for remote in $fixme_remote; do
4993             echolog "git remote set-url $remote $git_remote_to"
4994         done
4995     fi
4996 }
4997
4998 if test -f "$source_path/.git/config"; then
4999     remote_from=git.videolan.org
5000     remote_to=source.ffmpeg.org
5001     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
5002     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
5003 fi