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   --enable-rpath           use rpath to allow installing libraries in paths
  91                            not part of the dynamic linker search path
  92
  93 Licensing options:
  94   --enable-gpl             allow use of GPL code, the resulting libs
  95                            and binaries will be under GPL [no]
  96   --enable-version3        upgrade (L)GPL to version 3 [no]
  97   --enable-nonfree         allow use of nonfree code, the resulting libs
  98                            and binaries will be unredistributable [no]
  99
 100 Configuration options:
 101   --disable-static         do not build static libraries [no]
 102   --enable-shared          build shared libraries [no]
 103   --enable-small           optimize for size instead of speed
 104   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 105   --enable-gray            enable full grayscale support (slower color)
 106   --disable-swscale-alpha  disable alpha channel support in swscale
 107   --disable-all            disable building components, libraries and programs
 108   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 109   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
 110   --enable-raise-major     increase major version numbers in sonames [no]
 111
 112 Program options:
 113   --disable-programs       do not build command line programs
 114   --disable-ffmpeg         disable ffmpeg build
 115   --disable-ffplay         disable ffplay build
 116   --disable-ffprobe        disable ffprobe build
 117   --disable-ffserver       disable ffserver build
 118
 119 Documentation options:
 120   --disable-doc            do not build documentation
 121   --disable-htmlpages      do not build HTML documentation pages
 122   --disable-manpages       do not build man documentation pages
 123   --disable-podpages       do not build POD documentation pages
 124   --disable-txtpages       do not build text documentation pages
 125
 126 Component options:
 127   --disable-avdevice       disable libavdevice build
 128   --disable-avcodec        disable libavcodec build
 129   --disable-avformat       disable libavformat build
 130   --disable-avutil         disable libavutil build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [auto]
 137   --disable-w32threads     disable Win32 threads [auto]
 138   --disable-os2threads     disable OS/2 threads [auto]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148
 149 Hardware accelerators:
 150   --disable-dxva2          disable DXVA2 code [autodetect]
 151   --disable-vaapi          disable VAAPI code [autodetect]
 152   --enable-vda             enable VDA code
 153   --disable-vdpau          disable VDPAU code [autodetect]
 154
 155 Individual component options:
 156   --disable-everything     disable all components listed below
 157   --disable-encoder=NAME   disable encoder NAME
 158   --enable-encoder=NAME    enable encoder NAME
 159   --disable-encoders       disable all encoders
 160   --disable-decoder=NAME   disable decoder NAME
 161   --enable-decoder=NAME    enable decoder NAME
 162   --disable-decoders       disable all decoders
 163   --disable-hwaccel=NAME   disable hwaccel NAME
 164   --enable-hwaccel=NAME    enable hwaccel NAME
 165   --disable-hwaccels       disable all hwaccels
 166   --disable-muxer=NAME     disable muxer NAME
 167   --enable-muxer=NAME      enable muxer NAME
 168   --disable-muxers         disable all muxers
 169   --disable-demuxer=NAME   disable demuxer NAME
 170   --enable-demuxer=NAME    enable demuxer NAME
 171   --disable-demuxers       disable all demuxers
 172   --enable-parser=NAME     enable parser NAME
 173   --disable-parser=NAME    disable parser NAME
 174   --disable-parsers        disable all parsers
 175   --enable-bsf=NAME        enable bitstream filter NAME
 176   --disable-bsf=NAME       disable bitstream filter NAME
 177   --disable-bsfs           disable all bitstream filters
 178   --enable-protocol=NAME   enable protocol NAME
 179   --disable-protocol=NAME  disable protocol NAME
 180   --disable-protocols      disable all protocols
 181   --enable-indev=NAME      enable input device NAME
 182   --disable-indev=NAME     disable input device NAME
 183   --disable-indevs         disable input devices
 184   --enable-outdev=NAME     enable output device NAME
 185   --disable-outdev=NAME    disable output device NAME
 186   --disable-outdevs        disable output devices
 187   --disable-devices        disable all devices
 188   --enable-filter=NAME     enable filter NAME
 189   --disable-filter=NAME    disable filter NAME
 190   --disable-filters        disable all filters
 191
 192 External library support:
 193   --enable-avisynth        enable reading of AviSynth script files [no]
 194   --disable-bzlib          disable bzlib [autodetect]
 195   --enable-fontconfig      enable fontconfig
 196   --enable-frei0r          enable frei0r video filtering
 197   --enable-gnutls          enable gnutls [no]
 198   --disable-iconv          disable iconv [autodetect]
 199   --enable-ladspa          enable LADSPA audio filtering
 200   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 201   --enable-libass          enable libass subtitles rendering [no]
 202   --enable-libbluray       enable BluRay reading using libbluray [no]
 203   --enable-libcaca         enable textual display using libcaca
 204   --enable-libcelt         enable CELT decoding via libcelt [no]
 205   --enable-libcdio         enable audio CD grabbing with libcdio
 206   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 207                            and libraw1394 [no]
 208   --enable-libfaac         enable AAC encoding via libfaac [no]
 209   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 210   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 211   --enable-libfreetype     enable libfreetype [no]
 212   --enable-libgme          enable Game Music Emu via libgme [no]
 213   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 214   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 215   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 216   --enable-libmodplug      enable ModPlug via libmodplug [no]
 217   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 218   --enable-libnut          enable NUT (de)muxing via libnut,
 219                            native (de)muxer exists [no]
 220   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 221   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 222   --enable-libopencv       enable video filtering via libopencv [no]
 223   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 224   --enable-libopus         enable Opus decoding via libopus [no]
 225   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 226   --enable-libquvi         enable quvi input via libquvi [no]
 227   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 228   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 229   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 230   --enable-libsoxr         enable Include libsoxr resampling [no]
 231   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 232   --enable-libssh          enable SFTP protocol via libssh [no]
 233   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 234   --enable-libtheora       enable Theora encoding via libtheora [no]
 235   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 236   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 237   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 238   --enable-libvidstab      enable video stabilization using vid.stab [no]
 239   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 240   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 241   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 242                            native implementation exists [no]
 243   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 244   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 245   --enable-libwebp         enable WebP encoding via libwebp [no]
 246   --enable-libx264         enable H.264 encoding via x264 [no]
 247   --enable-libx265         enable HEVC encoding via x265 [no]
 248   --enable-libxavs         enable AVS encoding via xavs [no]
 249   --enable-libxvid         enable Xvid encoding via xvidcore,
 250                            native MPEG-4/Xvid encoder exists [no]
 251   --enable-libzmq          enable message passing via libzmq [no]
 252   --enable-libzvbi         enable teletext support via libzvbi [no]
 253   --enable-decklink        enable Blackmagick DeckLink output [no]
 254   --enable-openal          enable OpenAL 1.1 capture support [no]
 255   --enable-opencl          enable OpenCL code
 256   --enable-opengl          enable OpenGL rendering [no]
 257   --enable-openssl         enable openssl [no]
 258   --enable-x11grab         enable X11 grabbing [no]
 259   --disable-xlib           disable xlib [autodetect]
 260   --disable-zlib           disable zlib [autodetect]
 261
 262 Toolchain options:
 263   --arch=ARCH              select architecture [$arch]
 264   --cpu=CPU                select the minimum required CPU (affects
 265                            instruction selection, may crash on older CPUs)
 266   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 267   --progs-suffix=SUFFIX    program name suffix []
 268   --enable-cross-compile   assume a cross-compiler is used
 269   --sysroot=PATH           root of cross-build tree
 270   --sysinclude=PATH        location of cross-build system headers
 271   --target-os=OS           compiler targets OS [$target_os]
 272   --target-exec=CMD        command to run executables on target
 273   --target-path=DIR        path to view of build directory on target
 274   --target-samples=DIR     path to samples directory on target
 275   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 276   --toolchain=NAME         set tool defaults according to NAME
 277   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 278   --nm=NM                  use nm tool NM [$nm_default]
 279   --ar=AR                  use archive tool AR [$ar_default]
 280   --as=AS                  use assembler AS [$as_default]
 281   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 282   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 283   --cc=CC                  use C compiler CC [$cc_default]
 284   --cxx=CXX                use C compiler CXX [$cxx_default]
 285   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 286   --ld=LD                  use linker LD [$ld_default]
 287   --pkg-config=PKGCONF     use pkg-config PKGCONF [$pkg_config_default]
 288   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 289   --host-cc=HOSTCC         use host C compiler HOSTCC
 290   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 291   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 292   --host-ld=HOSTLD         use host linker HOSTLD
 293   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 294   --host-libs=HLIBS        use libs HLIBS when linking for host
 295   --host-os=OS             compiler host OS [$target_os]
 296   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 297   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 298   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 299   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 300   --extra-version=STRING   version string suffix []
 301   --optflags=OPTFLAGS      override optimization-related compiler flags
 302   --build-suffix=SUFFIX    library name suffix []
 303   --enable-pic             build position-independent code
 304   --enable-thumb           compile for Thumb instruction set
 305   --enable-lto             use link-time optimization
 306
 307 Advanced options (experts only):
 308   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 309   --disable-symver         disable symbol versioning
 310   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 311   --disable-safe-bitstream-reader
 312                            disable buffer boundary checking in bitreaders
 313                            (faster, but may crash)
 314   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 315   --enable-sram            allow use of on-chip SRAM
 316
 317 Optimization options (experts only):
 318   --disable-asm            disable all assembler optimizations
 319   --disable-altivec        disable AltiVec optimizations
 320   --disable-amd3dnow       disable 3DNow! optimizations
 321   --disable-amd3dnowext    disable 3DNow! extended optimizations
 322   --disable-mmx            disable MMX optimizations
 323   --disable-mmxext         disable MMXEXT optimizations
 324   --disable-sse            disable SSE optimizations
 325   --disable-sse2           disable SSE2 optimizations
 326   --disable-sse3           disable SSE3 optimizations
 327   --disable-ssse3          disable SSSE3 optimizations
 328   --disable-sse4           disable SSE4 optimizations
 329   --disable-sse42          disable SSE4.2 optimizations
 330   --disable-avx            disable AVX optimizations
 331   --disable-xop            disable XOP optimizations
 332   --disable-fma3           disable FMA3 optimizations
 333   --disable-fma4           disable FMA4 optimizations
 334   --disable-avx2           disable AVX2 optimizations
 335   --disable-armv5te        disable armv5te optimizations
 336   --disable-armv6          disable armv6 optimizations
 337   --disable-armv6t2        disable armv6t2 optimizations
 338   --disable-vfp            disable VFP optimizations
 339   --disable-neon           disable NEON optimizations
 340   --disable-inline-asm     disable use of inline assembler
 341   --disable-yasm           disable use of yasm assembler
 342   --disable-mips32r2       disable MIPS32R2 optimizations
 343   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 344   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 345   --disable-mipsfpu        disable floating point MIPS optimizations
 346   --disable-fast-unaligned consider unaligned accesses slow
 347
 348 Developer options (useful when working on FFmpeg itself):
 349   --disable-debug          disable debugging symbols
 350   --enable-debug=LEVEL     set the debug level [$debuglevel]
 351   --disable-optimizations  disable compiler optimizations
 352   --enable-extra-warnings  enable more compiler warnings
 353   --disable-stripping      disable stripping of executables and shared libraries
 354   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 355                            2 causes a slowdown at runtime.
 356   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 357   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 358                            leaks and errors, using the specified valgrind binary.
 359                            Cannot be combined with --target-exec
 360   --enable-ftrapv          Trap arithmetic overflows
 361   --samples=PATH           location of test samples for FATE, if not set use
 362                            \$FATE_SAMPLES at make invocation time.
 363   --enable-neon-clobber-test check NEON registers for clobbering (should be
 364                            used only for debugging purposes)
 365   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 366                            should be used only for debugging purposes)
 367   --enable-random          randomly enable/disable components
 368   --disable-random
 369   --enable-random=LIST     randomly enable/disable specific components or
 370   --disable-random=LIST    component groups. LIST is a comma-separated list
 371                            of NAME[:PROB] entries where NAME is a component
 372                            (group) and PROB the probability associated with
 373                            NAME (default 0.5).
 374   --random-seed=VALUE      seed value for --enable/disable-random
 375
 376 NOTE: Object files are built at the place where configure is launched.
 377 EOF
 378   exit 0
 379 }
 380
 381 quotes='""'
 382
 383 log(){
 384     echo "$@" >> $logfile
 385 }
 386
 387 log_file(){
 388     log BEGIN $1
 389     pr -n -t $1 >> $logfile
 390     log END $1
 391 }
 392
 393 echolog(){
 394     log "$@"
 395     echo "$@"
 396 }
 397
 398 warn(){
 399     log "WARNING: $*"
 400     WARNINGS="${WARNINGS}WARNING: $*\n"
 401 }
 402
 403 die(){
 404     echolog "$@"
 405     cat <<EOF
 406
 407 If you think configure made a mistake, make sure you are using the latest
 408 version from Git.  If the latest version fails, report the problem to the
 409 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 410 EOF
 411     if disabled logging; then
 412         cat <<EOF
 413 Rerun configure with logging enabled (do not use --disable-logging), and
 414 include the log this produces with your report.
 415 EOF
 416     else
 417         cat <<EOF
 418 Include the log file "$logfile" produced by configure as this will help
 419 solving the problem.
 420 EOF
 421     fi
 422     exit 1
 423 }
 424
 425 # Avoid locale weirdness, besides we really just want to translate ASCII.
 426 toupper(){
 427     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 428 }
 429
 430 tolower(){
 431     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 432 }
 433
 434 c_escape(){
 435     echo "$*" | sed 's/["\\]/\\\0/g'
 436 }
 437
 438 sh_quote(){
 439     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 440     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 441     echo "$v"
 442 }
 443
 444 cleanws(){
 445     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
 446 }
 447
 448 filter(){
 449     pat=$1
 450     shift
 451     for v; do
 452         eval "case $v in $pat) echo $v ;; esac"
 453     done
 454 }
 455
 456 filter_out(){
 457     pat=$1
 458     shift
 459     for v; do
 460         eval "case $v in $pat) ;; *) echo $v ;; esac"
 461     done
 462 }
 463
 464 map(){
 465     m=$1
 466     shift
 467     for v; do eval $m; done
 468 }
 469
 470 add_suffix(){
 471     suffix=$1
 472     shift
 473     for v; do echo ${v}${suffix}; done
 474 }
 475
 476 set_all(){
 477     value=$1
 478     shift
 479     for var in $*; do
 480         eval $var=$value
 481     done
 482 }
 483
 484 set_weak(){
 485     value=$1
 486     shift
 487     for var; do
 488         eval : \${$var:=$value}
 489     done
 490 }
 491
 492 sanitize_var_name(){
 493     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 494 }
 495
 496 set_safe(){
 497     var=$1
 498     shift
 499     eval $(sanitize_var_name "$var")='$*'
 500 }
 501
 502 get_safe(){
 503     eval echo \$$(sanitize_var_name "$1")
 504 }
 505
 506 pushvar(){
 507     for pvar in $*; do
 508         eval level=\${${pvar}_level:=0}
 509         eval ${pvar}_${level}="\$$pvar"
 510         eval ${pvar}_level=$(($level+1))
 511     done
 512 }
 513
 514 popvar(){
 515     for pvar in $*; do
 516         eval level=\${${pvar}_level:-0}
 517         test $level = 0 && continue
 518         eval level=$(($level-1))
 519         eval $pvar="\${${pvar}_${level}}"
 520         eval ${pvar}_level=$level
 521         eval unset ${pvar}_${level}
 522     done
 523 }
 524
 525 enable(){
 526     set_all yes $*
 527 }
 528
 529 disable(){
 530     set_all no $*
 531 }
 532
 533 enable_weak(){
 534     set_weak yes $*
 535 }
 536
 537 disable_weak(){
 538     set_weak no $*
 539 }
 540
 541 enable_safe(){
 542     for var; do
 543         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 544     done
 545 }
 546
 547 disable_safe(){
 548     for var; do
 549         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 550     done
 551 }
 552
 553 do_enable_deep(){
 554     for var; do
 555         enabled $var && continue
 556         eval sel="\$${var}_select"
 557         eval sgs="\$${var}_suggest"
 558         pushvar var sgs
 559         enable_deep $sel
 560         popvar sgs
 561         enable_deep_weak $sgs
 562         popvar var
 563     done
 564 }
 565
 566 enable_deep(){
 567     do_enable_deep $*
 568     enable $*
 569 }
 570
 571 enable_deep_weak(){
 572     for var; do
 573         disabled $var && continue
 574         pushvar var
 575         do_enable_deep $var
 576         popvar var
 577         enable_weak $var
 578     done
 579 }
 580
 581 enabled(){
 582     test "${1#!}" = "$1" && op== || op=!=
 583     eval test "x\$${1#!}" $op "xyes"
 584 }
 585
 586 disabled(){
 587     test "${1#!}" = "$1" && op== || op=!=
 588     eval test "x\$${1#!}" $op "xno"
 589 }
 590
 591 enabled_all(){
 592     for opt; do
 593         enabled $opt || return 1
 594     done
 595 }
 596
 597 disabled_all(){
 598     for opt; do
 599         disabled $opt || return 1
 600     done
 601 }
 602
 603 enabled_any(){
 604     for opt; do
 605         enabled $opt && return 0
 606     done
 607 }
 608
 609 disabled_any(){
 610     for opt; do
 611         disabled $opt && return 0
 612     done
 613     return 1
 614 }
 615
 616 set_default(){
 617     for opt; do
 618         eval : \${$opt:=\$${opt}_default}
 619     done
 620 }
 621
 622 is_in(){
 623     value=$1
 624     shift
 625     for var in $*; do
 626         [ $var = $value ] && return 0
 627     done
 628     return 1
 629 }
 630
 631 do_check_deps(){
 632     for cfg; do
 633         cfg="${cfg#!}"
 634         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 635         disabled ${cfg}_checking && continue
 636         enable ${cfg}_checking
 637         append allopts $cfg
 638
 639         eval dep_all="\$${cfg}_deps"
 640         eval dep_any="\$${cfg}_deps_any"
 641         eval dep_sel="\$${cfg}_select"
 642         eval dep_sgs="\$${cfg}_suggest"
 643         eval dep_ifa="\$${cfg}_if"
 644         eval dep_ifn="\$${cfg}_if_any"
 645
 646         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 647         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 648         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 649
 650         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 651         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 652         enabled_all  $dep_all || disable $cfg
 653         enabled_any  $dep_any || disable $cfg
 654         disabled_any $dep_sel && disable $cfg
 655
 656         if enabled $cfg; then
 657             enable_deep $dep_sel
 658             enable_deep_weak $dep_sgs
 659         fi
 660
 661         disable ${cfg}_checking
 662     done
 663 }
 664
 665 check_deps(){
 666     unset allopts
 667
 668     do_check_deps "$@"
 669
 670     for cfg in $allopts; do
 671         enabled $cfg || continue
 672         eval dep_extralibs="\$${cfg}_extralibs"
 673         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 674     done
 675 }
 676
 677 print_config(){
 678     pfx=$1
 679     files=$2
 680     shift 2
 681     map 'eval echo "$v \${$v:-no}"' "$@" |
 682     awk "BEGIN { split(\"$files\", files) }
 683         {
 684             c = \"$pfx\" toupper(\$1);
 685             v = \$2;
 686             sub(/yes/, 1, v);
 687             sub(/no/,  0, v);
 688             for (f in files) {
 689                 file = files[f];
 690                 if (file ~ /\\.h\$/) {
 691                     printf(\"#define %s %d\\n\", c, v) >>file;
 692                 } else if (file ~ /\\.asm\$/) {
 693                     printf(\"%%define %s %d\\n\", c, v) >>file;
 694                 } else if (file ~ /\\.mak\$/) {
 695                     n = -v ? \"\" : \"!\";
 696                     printf(\"%s%s=yes\\n\", n, c) >>file;
 697                 } else if (file ~ /\\.texi\$/) {
 698                     pre = -v ? \"\" : \"@c \";
 699                     yesno = \$2;
 700                     c2 = tolower(c);
 701                     gsub(/_/, \"-\", c2);
 702                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 703                 }
 704             }
 705         }"
 706 }
 707
 708 print_enabled(){
 709     suf=$1
 710     shift
 711     for v; do
 712         enabled $v && printf "%s\n" ${v%$suf};
 713     done
 714 }
 715
 716 append(){
 717     var=$1
 718     shift
 719     eval "$var=\"\$$var $*\""
 720 }
 721
 722 prepend(){
 723     var=$1
 724     shift
 725     eval "$var=\"$* \$$var\""
 726 }
 727
 728 add_cppflags(){
 729     append CPPFLAGS "$@"
 730 }
 731
 732 add_cflags(){
 733     append CFLAGS $($cflags_filter "$@")
 734 }
 735
 736 add_cxxflags(){
 737     append CXXFLAGS $($cflags_filter "$@")
 738 }
 739
 740 add_asflags(){
 741     append ASFLAGS $($asflags_filter "$@")
 742 }
 743
 744 add_ldflags(){
 745     append LDFLAGS $($ldflags_filter "$@")
 746 }
 747
 748 add_stripflags(){
 749     append ASMSTRIPFLAGS "$@"
 750 }
 751
 752 add_extralibs(){
 753     prepend extralibs $($ldflags_filter "$@")
 754 }
 755
 756 add_host_cppflags(){
 757     append host_cppflags "$@"
 758 }
 759
 760 add_host_cflags(){
 761     append host_cflags $($host_cflags_filter "$@")
 762 }
 763
 764 add_host_ldflags(){
 765     append host_ldflags $($host_ldflags_filter "$@")
 766 }
 767
 768 add_compat(){
 769     append compat_objs $1
 770     shift
 771     map 'add_cppflags -D$v' "$@"
 772 }
 773
 774 check_cmd(){
 775     log "$@"
 776     "$@" >> $logfile 2>&1
 777 }
 778
 779 cc_o(){
 780     eval printf '%s\\n' $CC_O
 781 }
 782
 783 cc_e(){
 784     eval printf '%s\\n' $CC_E
 785 }
 786
 787 check_cc(){
 788     log check_cc "$@"
 789     cat > $TMPC
 790     log_file $TMPC
 791     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 792 }
 793
 794 check_cxx(){
 795     log check_cxx "$@"
 796     cat > $TMPCPP
 797     log_file $TMPCPP
 798     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 799 }
 800
 801 check_cpp(){
 802     log check_cpp "$@"
 803     cat > $TMPC
 804     log_file $TMPC
 805     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 806 }
 807
 808 as_o(){
 809     eval printf '%s\\n' $AS_O
 810 }
 811
 812 check_as(){
 813     log check_as "$@"
 814     cat > $TMPS
 815     log_file $TMPS
 816     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 817 }
 818
 819 check_inline_asm(){
 820     log check_inline_asm "$@"
 821     name="$1"
 822     code="$2"
 823     shift 2
 824     disable $name
 825     check_cc "$@" <<EOF && enable $name
 826 void foo(void){ __asm__ volatile($code); }
 827 EOF
 828 }
 829
 830 check_insn(){
 831     log check_insn "$@"
 832     check_inline_asm ${1}_inline "\"$2\""
 833     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 834 }
 835
 836 check_yasm(){
 837     log check_yasm "$@"
 838     echo "$1" > $TMPS
 839     log_file $TMPS
 840     shift 1
 841     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 842 }
 843
 844 ld_o(){
 845     eval printf '%s\\n' $LD_O
 846 }
 847
 848 check_ld(){
 849     log check_ld "$@"
 850     type=$1
 851     shift 1
 852     flags=$(filter_out '-l*|*.so' $@)
 853     libs=$(filter '-l*|*.so' $@)
 854     check_$type $($cflags_filter $flags) || return
 855     flags=$($ldflags_filter $flags)
 856     libs=$($ldflags_filter $libs)
 857     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 858 }
 859
 860 print_include(){
 861     hdr=$1
 862     test "${hdr%.h}" = "${hdr}" &&
 863         echo "#include $hdr"    ||
 864         echo "#include <$hdr>"
 865 }
 866
 867 check_code(){
 868     log check_code "$@"
 869     check=$1
 870     headers=$2
 871     code=$3
 872     shift 3
 873     {
 874         for hdr in $headers; do
 875             print_include $hdr
 876         done
 877         echo "int main(void) { $code; return 0; }"
 878     } | check_$check "$@"
 879 }
 880
 881 check_cppflags(){
 882     log check_cppflags "$@"
 883     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 884 int x;
 885 EOF
 886 }
 887
 888 test_cflags(){
 889     log test_cflags "$@"
 890     set -- $($cflags_filter "$@")
 891     check_cc "$@" <<EOF
 892 int x;
 893 EOF
 894 }
 895
 896 check_cflags(){
 897     log check_cflags "$@"
 898     test_cflags "$@" && add_cflags "$@"
 899 }
 900
 901 check_cxxflags(){
 902     log check_cxxflags "$@"
 903     set -- $($cflags_filter "$@")
 904     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 905 int x;
 906 EOF
 907 }
 908
 909 test_ldflags(){
 910     log test_ldflags "$@"
 911     check_ld "cc" "$@" <<EOF
 912 int main(void){ return 0; }
 913 EOF
 914 }
 915
 916 check_ldflags(){
 917     log check_ldflags "$@"
 918     test_ldflags "$@" && add_ldflags "$@"
 919 }
 920
 921 test_stripflags(){
 922     log test_stripflags "$@"
 923     # call check_cc to get a fresh TMPO
 924     check_cc <<EOF
 925 int main(void) { return 0; }
 926 EOF
 927     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 928 }
 929
 930 check_stripflags(){
 931     log check_stripflags "$@"
 932     test_stripflags "$@" && add_stripflags "$@"
 933 }
 934
 935 check_header(){
 936     log check_header "$@"
 937     header=$1
 938     shift
 939     disable_safe $header
 940     check_cpp "$@" <<EOF && enable_safe $header
 941 #include <$header>
 942 int x;
 943 EOF
 944 }
 945
 946 check_func(){
 947     log check_func "$@"
 948     func=$1
 949     shift
 950     disable $func
 951     check_ld "cc" "$@" <<EOF && enable $func
 952 extern int $func();
 953 int main(void){ $func(); }
 954 EOF
 955 }
 956
 957 check_mathfunc(){
 958     log check_mathfunc "$@"
 959     func=$1
 960     narg=$2
 961     shift 2
 962     test $narg = 2 && args="f, g" || args="f"
 963     disable $func
 964     check_ld "cc" "$@" <<EOF && enable $func
 965 #include <math.h>
 966 float foo(float f, float g) { return $func($args); }
 967 int main(void){ return (int) foo; }
 968 EOF
 969 }
 970
 971 check_func_headers(){
 972     log check_func_headers "$@"
 973     headers=$1
 974     funcs=$2
 975     shift 2
 976     {
 977         for hdr in $headers; do
 978             print_include $hdr
 979         done
 980         for func in $funcs; do
 981             echo "long check_$func(void) { return (long) $func; }"
 982         done
 983         echo "int main(void) { return 0; }"
 984     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 985 }
 986
 987 check_class_headers_cpp(){
 988     log check_class_headers_cpp "$@"
 989     headers=$1
 990     classes=$2
 991     shift 2
 992     {
 993         for hdr in $headers; do
 994             echo "#include <$hdr>"
 995         done
 996         echo "int main(void) { "
 997         i=1
 998         for class in $classes; do
 999             echo "$class obj$i;"
1000             i=$(expr $i + 1)
1001         done
1002         echo "return 0; }"
1003     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1004 }
1005
1006 check_cpp_condition(){
1007     log check_cpp_condition "$@"
1008     header=$1
1009     condition=$2
1010     shift 2
1011     check_cpp "$@" <<EOF
1012 #include <$header>
1013 #if !($condition)
1014 #error "unsatisfied condition: $condition"
1015 #endif
1016 EOF
1017 }
1018
1019 check_lib(){
1020     log check_lib "$@"
1021     header="$1"
1022     func="$2"
1023     shift 2
1024     check_header $header && check_func $func "$@" && add_extralibs "$@"
1025 }
1026
1027 check_lib2(){
1028     log check_lib2 "$@"
1029     headers="$1"
1030     funcs="$2"
1031     shift 2
1032     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1033 }
1034
1035 check_lib_cpp(){
1036     log check_lib_cpp "$@"
1037     headers="$1"
1038     classes="$2"
1039     shift 2
1040     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1041 }
1042
1043 check_pkg_config(){
1044     log check_pkg_config "$@"
1045     pkgandversion="$1"
1046     pkg="${1%% *}"
1047     headers="$2"
1048     funcs="$3"
1049     shift 3
1050     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1051     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1052     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1053     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1054         set_safe ${pkg}_cflags $pkg_cflags   &&
1055         set_safe ${pkg}_libs   $pkg_libs
1056 }
1057
1058 check_exec(){
1059     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1060 }
1061
1062 check_exec_crash(){
1063     code=$(cat)
1064
1065     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1066     # are safe but may not be available everywhere.  Thus we use
1067     # raise(SIGTERM) instead.  The check is run in a subshell so we
1068     # can redirect the "Terminated" message from the shell.  SIGBUS
1069     # is not defined by standard C so it is used conditionally.
1070
1071     (check_exec "$@") >> $logfile 2>&1 <<EOF
1072 #include <signal.h>
1073 static void sighandler(int sig){
1074     raise(SIGTERM);
1075 }
1076 int foo(void){
1077     $code
1078 }
1079 int (*func_ptr)(void) = foo;
1080 int main(void){
1081     signal(SIGILL, sighandler);
1082     signal(SIGFPE, sighandler);
1083     signal(SIGSEGV, sighandler);
1084 #ifdef SIGBUS
1085     signal(SIGBUS, sighandler);
1086 #endif
1087     return func_ptr();
1088 }
1089 EOF
1090 }
1091
1092 check_type(){
1093     log check_type "$@"
1094     headers=$1
1095     type=$2
1096     shift 2
1097     disable_safe "$type"
1098     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1099 }
1100
1101 check_struct(){
1102     log check_struct "$@"
1103     headers=$1
1104     struct=$2
1105     member=$3
1106     shift 3
1107     disable_safe "${struct}_${member}"
1108     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1109         enable_safe "${struct}_${member}"
1110 }
1111
1112 check_builtin(){
1113     log check_builtin "$@"
1114     name=$1
1115     headers=$2
1116     builtin=$3
1117     shift 3
1118     disable "$name"
1119     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1120 }
1121
1122 check_compile_assert(){
1123     log check_compile_assert "$@"
1124     name=$1
1125     headers=$2
1126     condition=$3
1127     shift 3
1128     disable "$name"
1129     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1130 }
1131
1132 require(){
1133     name="$1"
1134     header="$2"
1135     func="$3"
1136     shift 3
1137     check_lib $header $func "$@" || die "ERROR: $name not found"
1138 }
1139
1140 require2(){
1141     name="$1"
1142     headers="$2"
1143     func="$3"
1144     shift 3
1145     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1146 }
1147
1148 require_cpp(){
1149     name="$1"
1150     headers="$2"
1151     classes="$3"
1152     shift 3
1153     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1154 }
1155
1156 require_pkg_config(){
1157     pkg="$1"
1158     check_pkg_config "$@" || die "ERROR: $pkg not found"
1159     add_cflags    $(get_safe ${pkg}_cflags)
1160     add_extralibs $(get_safe ${pkg}_libs)
1161 }
1162
1163 require_libfreetype(){
1164     log require_libfreetype "$@"
1165     pkg="freetype2"
1166     check_cmd $pkg_config --exists --print-errors $pkg \
1167       || die "ERROR: $pkg not found"
1168     pkg_cflags=$($pkg_config --cflags $pkg)
1169     pkg_libs=$($pkg_config --libs $pkg)
1170     {
1171         echo "#include <ft2build.h>"
1172         echo "#include FT_FREETYPE_H"
1173         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1174         echo "int main(void) { return 0; }"
1175     } | check_ld "cc" $pkg_cflags $pkg_libs \
1176       && set_safe ${pkg}_cflags $pkg_cflags \
1177       && set_safe ${pkg}_libs   $pkg_libs \
1178       || die "ERROR: $pkg not found"
1179     add_cflags    $(get_safe ${pkg}_cflags)
1180     add_extralibs $(get_safe ${pkg}_libs)
1181 }
1182
1183 hostcc_e(){
1184     eval printf '%s\\n' $HOSTCC_E
1185 }
1186
1187 hostcc_o(){
1188     eval printf '%s\\n' $HOSTCC_O
1189 }
1190
1191 check_host_cc(){
1192     log check_host_cc "$@"
1193     cat > $TMPC
1194     log_file $TMPC
1195     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1196 }
1197
1198 check_host_cpp(){
1199     log check_host_cpp "$@"
1200     cat > $TMPC
1201     log_file $TMPC
1202     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1203 }
1204
1205 check_host_cppflags(){
1206     log check_host_cppflags "$@"
1207     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1208 int x;
1209 EOF
1210 }
1211
1212 check_host_cflags(){
1213     log check_host_cflags "$@"
1214     set -- $($host_cflags_filter "$@")
1215     check_host_cc "$@" <<EOF && append host_cflags "$@"
1216 int x;
1217 EOF
1218 }
1219
1220 check_host_cpp_condition(){
1221     log check_host_cpp_condition "$@"
1222     header=$1
1223     condition=$2
1224     shift 2
1225     check_host_cpp "$@" <<EOF
1226 #include <$header>
1227 #if !($condition)
1228 #error "unsatisfied condition: $condition"
1229 #endif
1230 EOF
1231 }
1232
1233 apply(){
1234     file=$1
1235     shift
1236     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1237 }
1238
1239 cp_if_changed(){
1240     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1241     mkdir -p "$(dirname $2)"
1242     $cp_f "$1" "$2"
1243 }
1244
1245 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1246 # system-dependent things.
1247
1248 COMPONENT_LIST="
1249     bsfs
1250     decoders
1251     demuxers
1252     encoders
1253     filters
1254     hwaccels
1255     indevs
1256     muxers
1257     outdevs
1258     parsers
1259     protocols
1260 "
1261
1262 EXAMPLE_LIST="
1263     avio_reading_example
1264     avcodec_example
1265     demuxing_decoding_example
1266     filter_audio_example
1267     filtering_audio_example
1268     filtering_video_example
1269     metadata_example
1270     muxing_example
1271     remuxing_example
1272     resampling_audio_example
1273     scaling_video_example
1274     transcode_aac_example
1275     transcoding_example
1276 "
1277
1278 EXTERNAL_LIBRARY_LIST="
1279     avisynth
1280     bzlib
1281     crystalhd
1282     decklink
1283     fontconfig
1284     frei0r
1285     gnutls
1286     iconv
1287     ladspa
1288     libaacplus
1289     libass
1290     libbluray
1291     libcaca
1292     libcdio
1293     libcelt
1294     libdc1394
1295     libfaac
1296     libfdk_aac
1297     libflite
1298     libfreetype
1299     libgme
1300     libgsm
1301     libiec61883
1302     libilbc
1303     libmodplug
1304     libmp3lame
1305     libnut
1306     libopencore_amrnb
1307     libopencore_amrwb
1308     libopencv
1309     libopenjpeg
1310     libopus
1311     libpulse
1312     libquvi
1313     librtmp
1314     libschroedinger
1315     libshine
1316     libsoxr
1317     libspeex
1318     libssh
1319     libstagefright_h264
1320     libtheora
1321     libtwolame
1322     libutvideo
1323     libv4l2
1324     libvidstab
1325     libvo_aacenc
1326     libvo_amrwbenc
1327     libvorbis
1328     libvpx
1329     libwavpack
1330     libwebp
1331     libx264
1332     libx265
1333     libxavs
1334     libxvid
1335     libzmq
1336     libzvbi
1337     openal
1338     opencl
1339     opengl
1340     openssl
1341     x11grab
1342     xlib
1343     zlib
1344 "
1345
1346 DOCUMENT_LIST="
1347     doc
1348     htmlpages
1349     manpages
1350     podpages
1351     txtpages
1352 "
1353
1354 FEATURE_LIST="
1355     ftrapv
1356     gray
1357     hardcoded_tables
1358     runtime_cpudetect
1359     safe_bitstream_reader
1360     shared
1361     small
1362     sram
1363     static
1364     swscale_alpha
1365 "
1366
1367 HWACCEL_LIST="
1368     dxva2
1369     vaapi
1370     vda
1371     vdpau
1372     xvmc
1373 "
1374
1375 LIBRARY_LIST="
1376     avcodec
1377     avdevice
1378     avfilter
1379     avformat
1380     avresample
1381     avutil
1382     postproc
1383     swresample
1384     swscale
1385 "
1386
1387 LICENSE_LIST="
1388     gpl
1389     nonfree
1390     version3
1391 "
1392
1393 PROGRAM_LIST="
1394     ffplay
1395     ffprobe
1396     ffserver
1397     ffmpeg
1398 "
1399
1400 SUBSYSTEM_LIST="
1401     dct
1402     dwt
1403     error_resilience
1404     fast_unaligned
1405     fft
1406     lsp
1407     lzo
1408     mdct
1409     network
1410     rdft
1411 "
1412
1413 CONFIG_LIST="
1414     $COMPONENT_LIST
1415     $DOCUMENT_LIST
1416     $EXAMPLE_LIST
1417     $EXTERNAL_LIBRARY_LIST
1418     $FEATURE_LIST
1419     $HWACCEL_LIST
1420     $LICENSE_LIST
1421     $LIBRARY_LIST
1422     $PROGRAM_LIST
1423     $SUBSYSTEM_LIST
1424     incompatible_libav_abi
1425     incompatible_fork_abi
1426     memalign_hack
1427     memory_poisoning
1428     neon_clobber_test
1429     pic
1430     pod2man
1431     raise_major
1432     thumb
1433     xmm_clobber_test
1434 "
1435
1436 THREADS_LIST="
1437     pthreads
1438     os2threads
1439     w32threads
1440 "
1441
1442 ATOMICS_LIST="
1443     atomics_gcc
1444     atomics_suncc
1445     atomics_win32
1446 "
1447
1448 ARCH_LIST="
1449     aarch64
1450     alpha
1451     arm
1452     avr32
1453     avr32_ap
1454     avr32_uc
1455     bfin
1456     ia64
1457     m68k
1458     mips
1459     mips64
1460     parisc
1461     ppc
1462     ppc64
1463     s390
1464     sh4
1465     sparc
1466     sparc64
1467     tilegx
1468     tilepro
1469     tomi
1470     x86
1471     x86_32
1472     x86_64
1473 "
1474
1475 ARCH_EXT_LIST_ARM="
1476     armv5te
1477     armv6
1478     armv6t2
1479     neon
1480     vfp
1481     vfpv3
1482 "
1483
1484 ARCH_EXT_LIST_MIPS="
1485     mipsfpu
1486     mips32r2
1487     mipsdspr1
1488     mipsdspr2
1489 "
1490
1491 ARCH_EXT_LIST_X86_SIMD="
1492     amd3dnow
1493     amd3dnowext
1494     avx
1495     avx2
1496     fma3
1497     fma4
1498     mmx
1499     mmxext
1500     sse
1501     sse2
1502     sse3
1503     sse4
1504     sse42
1505     ssse3
1506     xop
1507 "
1508
1509 ARCH_EXT_LIST_PPC="
1510     altivec
1511     dcbzl
1512     ldbrx
1513     ppc4xx
1514 "
1515
1516 ARCH_EXT_LIST_X86="
1517     $ARCH_EXT_LIST_X86_SIMD
1518     cpunop
1519     i686
1520 "
1521
1522 ARCH_EXT_LIST="
1523     $ARCH_EXT_LIST_ARM
1524     $ARCH_EXT_LIST_PPC
1525     $ARCH_EXT_LIST_X86
1526     $ARCH_EXT_LIST_MIPS
1527     loongson
1528 "
1529
1530 ARCH_FEATURES="
1531     aligned_stack
1532     fast_64bit
1533     fast_clz
1534     fast_cmov
1535     local_aligned_8
1536     local_aligned_16
1537 "
1538
1539 BUILTIN_LIST="
1540     atomic_cas_ptr
1541     machine_rw_barrier
1542     MemoryBarrier
1543     mm_empty
1544     rdtsc
1545     sarestart
1546     sync_val_compare_and_swap
1547 "
1548 HAVE_LIST_CMDLINE="
1549     inline_asm
1550     symver
1551     yasm
1552 "
1553
1554 HAVE_LIST_PUB="
1555     bigendian
1556     fast_unaligned
1557     incompatible_libav_abi
1558     incompatible_fork_abi
1559 "
1560
1561 HEADERS_LIST="
1562     alsa_asoundlib_h
1563     altivec_h
1564     arpa_inet_h
1565     asm_types_h
1566     cdio_paranoia_h
1567     cdio_paranoia_paranoia_h
1568     CL_cl_h
1569     dev_bktr_ioctl_bt848_h
1570     dev_bktr_ioctl_meteor_h
1571     dev_ic_bt8xx_h
1572     dev_video_bktr_ioctl_bt848_h
1573     dev_video_meteor_ioctl_meteor_h
1574     direct_h
1575     dlfcn_h
1576     dxva_h
1577     ES2_gl_h
1578     gsm_h
1579     io_h
1580     mach_mach_time_h
1581     machine_ioctl_bt848_h
1582     machine_ioctl_meteor_h
1583     malloc_h
1584     openjpeg_1_5_openjpeg_h
1585     OpenGL_gl3_h
1586     poll_h
1587     sndio_h
1588     soundcard_h
1589     sys_mman_h
1590     sys_param_h
1591     sys_resource_h
1592     sys_select_h
1593     sys_soundcard_h
1594     sys_time_h
1595     sys_un_h
1596     sys_videoio_h
1597     termios_h
1598     unistd_h
1599     windows_h
1600     winsock2_h
1601 "
1602
1603 MATH_FUNCS="
1604     atanf
1605     atan2f
1606     cbrt
1607     cbrtf
1608     cosf
1609     exp2
1610     exp2f
1611     expf
1612     isinf
1613     isnan
1614     ldexpf
1615     llrint
1616     llrintf
1617     log2
1618     log2f
1619     log10f
1620     lrint
1621     lrintf
1622     powf
1623     rint
1624     round
1625     roundf
1626     sinf
1627     trunc
1628     truncf
1629 "
1630
1631 SYSTEM_FUNCS="
1632     access
1633     aligned_malloc
1634     clock_gettime
1635     closesocket
1636     CommandLineToArgvW
1637     CryptGenRandom
1638     dlopen
1639     fcntl
1640     flt_lim
1641     fork
1642     getaddrinfo
1643     gethrtime
1644     getopt
1645     GetProcessAffinityMask
1646     GetProcessMemoryInfo
1647     GetProcessTimes
1648     getrusage
1649     getservbyport
1650     GetSystemTimeAsFileTime
1651     gettimeofday
1652     glob
1653     glXGetProcAddress
1654     inet_aton
1655     isatty
1656     jack_port_get_latency_range
1657     kbhit
1658     localtime_r
1659     lzo1x_999_compress
1660     mach_absolute_time
1661     MapViewOfFile
1662     memalign
1663     mkstemp
1664     mmap
1665     mprotect
1666     nanosleep
1667     PeekNamedPipe
1668     posix_memalign
1669     pthread_cancel
1670     sched_getaffinity
1671     SetConsoleTextAttribute
1672     setmode
1673     setrlimit
1674     Sleep
1675     strerror_r
1676     sysconf
1677     sysctl
1678     usleep
1679     VirtualAlloc
1680     wglGetProcAddress
1681 "
1682
1683 TOOLCHAIN_FEATURES="
1684     asm_mod_q
1685     attribute_may_alias
1686     attribute_packed
1687     ebp_available
1688     ebx_available
1689     gnu_as
1690     gnu_windres
1691     ibm_asm
1692     inline_asm_labels
1693     inline_asm_nonlocal_labels
1694     inline_asm_direct_symbol_refs
1695     pragma_deprecated
1696     rsync_contimeout
1697     symver_asm_label
1698     symver_gnu_asm
1699     vfp_args
1700     xform_asm
1701     xmm_clobbers
1702 "
1703
1704 TYPES_LIST="
1705     socklen_t
1706     struct_addrinfo
1707     struct_group_source_req
1708     struct_ip_mreq_source
1709     struct_ipv6_mreq
1710     struct_pollfd
1711     struct_rusage_ru_maxrss
1712     struct_sctp_event_subscribe
1713     struct_sockaddr_in6
1714     struct_sockaddr_sa_len
1715     struct_sockaddr_storage
1716     struct_stat_st_mtim_tv_nsec
1717     struct_v4l2_frmivalenum_discrete
1718 "
1719
1720 HAVE_LIST="
1721     $ARCH_EXT_LIST
1722     $(add_suffix _external $ARCH_EXT_LIST)
1723     $(add_suffix _inline   $ARCH_EXT_LIST)
1724     $ARCH_FEATURES
1725     $ATOMICS_LIST
1726     $BUILTIN_LIST
1727     $HAVE_LIST_CMDLINE
1728     $HAVE_LIST_PUB
1729     $HEADERS_LIST
1730     $MATH_FUNCS
1731     $SYSTEM_FUNCS
1732     $THREADS_LIST
1733     $TOOLCHAIN_FEATURES
1734     $TYPES_LIST
1735     atomics_native
1736     dos_paths
1737     libc_msvcrt
1738     libdc1394_1
1739     libdc1394_2
1740     makeinfo
1741     perl
1742     pod2man
1743     sdl
1744     texi2html
1745     threads
1746     vdpau_x11
1747     xlib
1748 "
1749
1750 # options emitted with CONFIG_ prefix but not available on the command line
1751 CONFIG_EXTRA="
1752     aandcttables
1753     ac3dsp
1754     audio_frame_queue
1755     dsputil
1756     exif
1757     frame_thread_encoder
1758     gcrypt
1759     golomb
1760     gplv3
1761     h263dsp
1762     h264chroma
1763     h264dsp
1764     h264pred
1765     h264qpel
1766     hpeldsp
1767     huffman
1768     intrax8
1769     lgplv3
1770     llviddsp
1771     lpc
1772     mpegaudio
1773     mpegaudiodsp
1774     mpegvideo
1775     mpegvideoenc
1776     nettle
1777     rangecoder
1778     riffdec
1779     riffenc
1780     rtpdec
1781     rtpenc_chain
1782     sinewin
1783     videodsp
1784     vp3dsp
1785 "
1786
1787 CMDLINE_SELECT="
1788     $ARCH_EXT_LIST
1789     $CONFIG_LIST
1790     $HAVE_LIST_CMDLINE
1791     $THREADS_LIST
1792     asm
1793     cross_compile
1794     debug
1795     extra_warnings
1796     logging
1797     lto
1798     optimizations
1799     rpath
1800     stripping
1801 "
1802
1803 PATHS_LIST="
1804     bindir
1805     datadir
1806     docdir
1807     incdir
1808     libdir
1809     mandir
1810     prefix
1811     shlibdir
1812 "
1813
1814 CMDLINE_SET="
1815     $PATHS_LIST
1816     ar
1817     arch
1818     as
1819     assert_level
1820     build_suffix
1821     cc
1822     cpu
1823     cross_prefix
1824     cxx
1825     dep_cc
1826     extra_version
1827     host_cc
1828     host_cflags
1829     host_ld
1830     host_ldflags
1831     host_libs
1832     host_os
1833     install
1834     ld
1835     logfile
1836     malloc_prefix
1837     nm
1838     optflags
1839     pkg_config
1840     pkg_config_flags
1841     progs_suffix
1842     random_seed
1843     samples
1844     strip
1845     sysinclude
1846     sysroot
1847     target_exec
1848     target_os
1849     target_path
1850     target_samples
1851     tempprefix
1852     toolchain
1853     valgrind
1854     yasmexe
1855 "
1856
1857 CMDLINE_APPEND="
1858     extra_cflags
1859     extra_cxxflags
1860     host_cppflags
1861 "
1862
1863 # code dependency declarations
1864
1865 # architecture extensions
1866
1867 armv5te_deps="arm"
1868 armv6_deps="arm"
1869 armv6t2_deps="arm"
1870 neon_deps_any="aarch64 arm"
1871 vfp_deps_any="aarch64 arm"
1872 vfpv3_deps="vfp"
1873
1874 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1875
1876 mipsfpu_deps="mips"
1877 mips32r2_deps="mips"
1878 mipsdspr1_deps="mips"
1879 mipsdspr2_deps="mips"
1880
1881 altivec_deps="ppc"
1882 ppc4xx_deps="ppc"
1883
1884 cpunop_deps="i686"
1885 x86_64_select="i686"
1886 x86_64_suggest="fast_cmov"
1887
1888 amd3dnow_deps="mmx"
1889 amd3dnowext_deps="amd3dnow"
1890 i686_deps="x86"
1891 mmx_deps="x86"
1892 mmxext_deps="mmx"
1893 sse_deps="mmxext"
1894 sse2_deps="sse"
1895 sse3_deps="sse2"
1896 ssse3_deps="sse3"
1897 sse4_deps="ssse3"
1898 sse42_deps="sse4"
1899 avx_deps="sse42"
1900 xop_deps="avx"
1901 fma3_deps="avx"
1902 fma4_deps="avx"
1903 avx2_deps="avx"
1904
1905 mmx_external_deps="yasm"
1906 mmx_inline_deps="inline_asm"
1907 mmx_suggest="mmx_external mmx_inline"
1908
1909 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1910     eval dep=\$${ext}_deps
1911     eval ${ext}_external_deps='"${dep}_external"'
1912     eval ${ext}_inline_deps='"${dep}_inline"'
1913     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1914 done
1915
1916 aligned_stack_if_any="aarch64 ppc x86"
1917 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1918 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1919 fast_unaligned_if_any="aarch64 ppc x86"
1920
1921 need_memalign="altivec neon sse"
1922
1923 # system capabilities
1924 log2_deps="!libc_msvcrt"
1925
1926 symver_if_any="symver_asm_label symver_gnu_asm"
1927
1928 # threading support
1929 atomics_gcc_if="sync_val_compare_and_swap"
1930 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1931 atomics_win32_if="MemoryBarrier"
1932 atomics_native_if_any="$ATOMICS_LIST"
1933 w32threads_deps="atomics_native"
1934 threads_if_any="$THREADS_LIST"
1935
1936 # subsystems
1937 dct_select="rdft"
1938 error_resilience_select="dsputil"
1939 frame_thread_encoder_deps="encoders threads"
1940 mdct_select="fft"
1941 rdft_select="fft"
1942 mpegaudio_select="mpegaudiodsp"
1943 mpegaudiodsp_select="dct"
1944 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1945 mpegvideoenc_select="dsputil mpegvideo"
1946
1947 # decoders / encoders
1948 aac_decoder_select="mdct sinewin"
1949 aac_encoder_select="audio_frame_queue mdct sinewin"
1950 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1951 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1952 ac3_encoder_select="mdct ac3dsp dsputil"
1953 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1954 aic_decoder_select="dsputil golomb"
1955 alac_encoder_select="lpc"
1956 als_decoder_select="dsputil"
1957 amrnb_decoder_select="lsp"
1958 amrwb_decoder_select="lsp"
1959 amv_decoder_select="sp5x_decoder exif"
1960 amv_encoder_select="aandcttables"
1961 ape_decoder_select="dsputil"
1962 asv1_decoder_select="dsputil"
1963 asv1_encoder_select="dsputil"
1964 asv2_decoder_select="dsputil"
1965 asv2_encoder_select="dsputil"
1966 atrac1_decoder_select="mdct sinewin"
1967 atrac3_decoder_select="mdct"
1968 atrac3p_decoder_select="mdct sinewin"
1969 avrn_decoder_select="exif"
1970 bink_decoder_select="dsputil hpeldsp"
1971 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1972 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1973 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1974 cllc_decoder_select="dsputil"
1975 comfortnoise_encoder_select="lpc"
1976 cook_decoder_select="dsputil mdct sinewin"
1977 cscd_decoder_select="lzo"
1978 cscd_decoder_suggest="zlib"
1979 dca_decoder_select="mdct"
1980 dirac_decoder_select="dsputil dwt golomb videodsp"
1981 dnxhd_decoder_select="dsputil"
1982 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1983 dvvideo_decoder_select="dsputil"
1984 dvvideo_encoder_select="dsputil"
1985 dxa_decoder_select="zlib"
1986 eac3_decoder_select="ac3_decoder"
1987 eac3_encoder_select="ac3_encoder"
1988 eamad_decoder_select="aandcttables dsputil mpegvideo"
1989 eatgq_decoder_select="aandcttables"
1990 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
1991 exr_decoder_select="zlib"
1992 ffv1_decoder_select="golomb rangecoder"
1993 ffv1_encoder_select="rangecoder"
1994 ffvhuff_decoder_select="huffyuv_decoder"
1995 ffvhuff_encoder_select="huffyuv_encoder"
1996 fic_decoder_select="dsputil golomb"
1997 flac_decoder_select="golomb"
1998 flac_encoder_select="dsputil golomb lpc"
1999 flashsv_decoder_select="zlib"
2000 flashsv_encoder_select="zlib"
2001 flashsv2_encoder_select="zlib"
2002 flashsv2_decoder_select="zlib"
2003 flv_decoder_select="h263_decoder"
2004 flv_encoder_select="h263_encoder"
2005 fourxm_decoder_select="dsputil"
2006 fraps_decoder_select="dsputil huffman"
2007 g2m_decoder_select="dsputil zlib"
2008 g729_decoder_select="dsputil"
2009 h261_decoder_select="error_resilience mpegvideo"
2010 h261_encoder_select="aandcttables mpegvideoenc"
2011 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
2012 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2013 h263i_decoder_select="h263_decoder"
2014 h263p_encoder_select="h263_encoder"
2015 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
2016 h264_decoder_suggest="error_resilience"
2017 hevc_decoder_select="dsputil golomb videodsp"
2018 huffyuv_decoder_select="dsputil llviddsp"
2019 huffyuv_encoder_select="dsputil huffman llviddsp"
2020 iac_decoder_select="imc_decoder"
2021 imc_decoder_select="dsputil fft mdct sinewin"
2022 indeo3_decoder_select="hpeldsp"
2023 interplay_video_decoder_select="hpeldsp"
2024 jpegls_decoder_select="golomb mjpeg_decoder"
2025 jpegls_encoder_select="golomb"
2026 jv_decoder_select="dsputil"
2027 lagarith_decoder_select="dsputil"
2028 ljpeg_encoder_select="aandcttables mpegvideoenc"
2029 loco_decoder_select="golomb"
2030 mdec_decoder_select="dsputil error_resilience mpegvideo"
2031 metasound_decoder_select="lsp mdct sinewin"
2032 mimic_decoder_select="dsputil hpeldsp"
2033 mjpeg_decoder_select="dsputil hpeldsp exif"
2034 mjpeg_encoder_select="aandcttables mpegvideoenc"
2035 mjpegb_decoder_select="mjpeg_decoder"
2036 mlp_decoder_select="mlp_parser"
2037 motionpixels_decoder_select="dsputil"
2038 mp1_decoder_select="mpegaudio"
2039 mp1float_decoder_select="mpegaudio"
2040 mp2_decoder_select="mpegaudio"
2041 mp2float_decoder_select="mpegaudio"
2042 mp3_decoder_select="mpegaudio"
2043 mp3adu_decoder_select="mpegaudio"
2044 mp3adufloat_decoder_select="mpegaudio"
2045 mp3float_decoder_select="mpegaudio"
2046 mp3on4_decoder_select="mpegaudio"
2047 mp3on4float_decoder_select="mpegaudio"
2048 mpc7_decoder_select="dsputil mpegaudiodsp"
2049 mpc8_decoder_select="mpegaudiodsp"
2050 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2051 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2052 mpeg1video_decoder_select="error_resilience mpegvideo"
2053 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2054 mpeg2video_decoder_select="error_resilience mpegvideo"
2055 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2056 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2057 mpeg4_encoder_select="h263_encoder"
2058 msmpeg4v1_decoder_select="h263_decoder"
2059 msmpeg4v2_decoder_select="h263_decoder"
2060 msmpeg4v2_encoder_select="h263_encoder"
2061 msmpeg4v3_decoder_select="h263_decoder"
2062 msmpeg4v3_encoder_select="h263_encoder"
2063 mss2_decoder_select="error_resilience vc1_decoder"
2064 mxpeg_decoder_select="mjpeg_decoder"
2065 nellymoser_decoder_select="mdct sinewin"
2066 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2067 nuv_decoder_select="dsputil lzo"
2068 png_decoder_select="zlib"
2069 png_encoder_select="dsputil zlib"
2070 prores_decoder_select="dsputil"
2071 prores_encoder_select="dsputil"
2072 qcelp_decoder_select="lsp"
2073 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2074 ra_144_encoder_select="audio_frame_queue lpc"
2075 ralf_decoder_select="golomb"
2076 rtjpeg_decoder_select="dsputil"
2077 rv10_decoder_select="error_resilience h263_decoder h263dsp"
2078 rv10_encoder_select="h263_encoder"
2079 rv20_decoder_select="error_resilience h263_decoder h263dsp"
2080 rv20_encoder_select="h263_encoder"
2081 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2082 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2083 shorten_decoder_select="golomb"
2084 sipr_decoder_select="lsp"
2085 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
2086 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
2087 sonic_decoder_select="golomb rangecoder"
2088 sonic_encoder_select="golomb rangecoder"
2089 sonic_ls_encoder_select="golomb"
2090 sp5x_decoder_select="mjpeg_decoder"
2091 svq1_decoder_select="hpeldsp"
2092 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2093 svq3_decoder_select="h264_decoder hpeldsp"
2094 svq3_decoder_suggest="zlib"
2095 tak_decoder_select="dsputil"
2096 theora_decoder_select="vp3_decoder"
2097 thp_decoder_select="mjpeg_decoder"
2098 tiff_decoder_suggest="zlib"
2099 tiff_encoder_suggest="zlib"
2100 truehd_decoder_select="mlp_parser"
2101 truemotion2_decoder_select="dsputil"
2102 truespeech_decoder_select="dsputil"
2103 tscc_decoder_select="zlib"
2104 twinvq_decoder_select="mdct lsp sinewin"
2105 utvideo_decoder_select="dsputil"
2106 utvideo_encoder_select="dsputil huffman"
2107 vble_decoder_select="dsputil"
2108 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
2109 vc1image_decoder_select="vc1_decoder"
2110 vorbis_decoder_select="mdct"
2111 vorbis_encoder_select="mdct"
2112 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2113 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2114 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2115 vp6a_decoder_select="vp6_decoder"
2116 vp6f_decoder_select="vp6_decoder"
2117 vp8_decoder_select="h264pred videodsp"
2118 vp9_decoder_select="videodsp"
2119 webp_decoder_select="vp8_decoder"
2120 wmapro_decoder_select="mdct sinewin"
2121 wmav1_decoder_select="mdct sinewin"
2122 wmav1_encoder_select="mdct sinewin"
2123 wmav2_decoder_select="mdct sinewin"
2124 wmav2_encoder_select="mdct sinewin"
2125 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2126 wmv1_decoder_select="h263_decoder"
2127 wmv1_encoder_select="h263_encoder"
2128 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2129 wmv2_encoder_select="h263_encoder"
2130 wmv3_decoder_select="vc1_decoder"
2131 wmv3image_decoder_select="wmv3_decoder"
2132 zerocodec_decoder_select="zlib"
2133 zlib_decoder_select="zlib"
2134 zlib_encoder_select="zlib"
2135 zmbv_decoder_select="zlib"
2136 zmbv_encoder_select="zlib"
2137
2138 # hardware accelerators
2139 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2140 dxva2_deps="dxva2api_h"
2141 vaapi_deps="va_va_h"
2142 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2143 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2144 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2145 xvmc_deps="X11_extensions_XvMClib_h"
2146
2147 h263_vaapi_hwaccel_deps="vaapi"
2148 h263_vaapi_hwaccel_select="h263_decoder"
2149 h263_vdpau_hwaccel_deps="vdpau"
2150 h263_vdpau_hwaccel_select="h263_decoder"
2151 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2152 h264_dxva2_hwaccel_deps="dxva2"
2153 h264_dxva2_hwaccel_select="h264_decoder"
2154 h264_vaapi_hwaccel_deps="vaapi"
2155 h264_vaapi_hwaccel_select="h264_decoder"
2156 h264_vda_decoder_deps="vda"
2157 h264_vda_decoder_select="h264_decoder"
2158 h264_vda_hwaccel_deps="vda"
2159 h264_vda_hwaccel_select="h264_decoder"
2160 h264_vdpau_decoder_deps="vdpau"
2161 h264_vdpau_decoder_select="h264_decoder"
2162 h264_vdpau_hwaccel_deps="vdpau"
2163 h264_vdpau_hwaccel_select="h264_decoder"
2164 mpeg_vdpau_decoder_deps="vdpau"
2165 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2166 mpeg_xvmc_hwaccel_deps="xvmc"
2167 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2168 mpeg1_vdpau_decoder_deps="vdpau"
2169 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2170 mpeg1_vdpau_hwaccel_deps="vdpau"
2171 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2172 mpeg1_xvmc_hwaccel_deps="xvmc"
2173 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2174 mpeg2_crystalhd_decoder_select="crystalhd"
2175 mpeg2_dxva2_hwaccel_deps="dxva2"
2176 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2177 mpeg2_vaapi_hwaccel_deps="vaapi"
2178 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2179 mpeg2_vdpau_hwaccel_deps="vdpau"
2180 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2181 mpeg2_xvmc_hwaccel_deps="xvmc"
2182 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2183 mpeg4_crystalhd_decoder_select="crystalhd"
2184 mpeg4_vaapi_hwaccel_deps="vaapi"
2185 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2186 mpeg4_vdpau_decoder_deps="vdpau"
2187 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2188 mpeg4_vdpau_hwaccel_deps="vdpau"
2189 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2190 msmpeg4_crystalhd_decoder_select="crystalhd"
2191 vc1_crystalhd_decoder_select="crystalhd"
2192 vc1_dxva2_hwaccel_deps="dxva2"
2193 vc1_dxva2_hwaccel_select="vc1_decoder"
2194 vc1_vaapi_hwaccel_deps="vaapi"
2195 vc1_vaapi_hwaccel_select="vc1_decoder"
2196 vc1_vdpau_decoder_deps="vdpau"
2197 vc1_vdpau_decoder_select="vc1_decoder"
2198 vc1_vdpau_hwaccel_deps="vdpau"
2199 vc1_vdpau_hwaccel_select="vc1_decoder"
2200 wmv3_crystalhd_decoder_select="crystalhd"
2201 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2202 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2203 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2204 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2205
2206 # parsers
2207 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
2208 hevc_parser_select="hevc_decoder"
2209 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
2210 mpegvideo_parser_select="error_resilience mpegvideo"
2211 vc1_parser_select="mpegvideo"
2212
2213 # external libraries
2214 libaacplus_encoder_deps="libaacplus"
2215 libcelt_decoder_deps="libcelt"
2216 libfaac_encoder_deps="libfaac"
2217 libfaac_encoder_select="audio_frame_queue"
2218 libfdk_aac_decoder_deps="libfdk_aac"
2219 libfdk_aac_encoder_deps="libfdk_aac"
2220 libfdk_aac_encoder_select="audio_frame_queue"
2221 libgme_demuxer_deps="libgme"
2222 libgsm_decoder_deps="libgsm"
2223 libgsm_encoder_deps="libgsm"
2224 libgsm_ms_decoder_deps="libgsm"
2225 libgsm_ms_encoder_deps="libgsm"
2226 libilbc_decoder_deps="libilbc"
2227 libilbc_encoder_deps="libilbc"
2228 libmodplug_demuxer_deps="libmodplug"
2229 libmp3lame_encoder_deps="libmp3lame"
2230 libmp3lame_encoder_select="audio_frame_queue"
2231 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2232 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2233 libopencore_amrnb_encoder_select="audio_frame_queue"
2234 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2235 libopenjpeg_decoder_deps="libopenjpeg"
2236 libopenjpeg_encoder_deps="libopenjpeg"
2237 libopus_decoder_deps="libopus"
2238 libopus_encoder_deps="libopus"
2239 libopus_encoder_select="audio_frame_queue"
2240 libquvi_demuxer_deps="libquvi"
2241 libschroedinger_decoder_deps="libschroedinger"
2242 libschroedinger_encoder_deps="libschroedinger"
2243 libshine_encoder_deps="libshine"
2244 libshine_encoder_select="audio_frame_queue"
2245 libspeex_decoder_deps="libspeex"
2246 libspeex_encoder_deps="libspeex"
2247 libspeex_encoder_select="audio_frame_queue"
2248 libstagefright_h264_decoder_deps="libstagefright_h264"
2249 libtheora_encoder_deps="libtheora"
2250 libtwolame_encoder_deps="libtwolame"
2251 libvo_aacenc_encoder_deps="libvo_aacenc"
2252 libvo_aacenc_encoder_select="audio_frame_queue"
2253 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2254 libvorbis_decoder_deps="libvorbis"
2255 libvorbis_encoder_deps="libvorbis"
2256 libvorbis_encoder_select="audio_frame_queue"
2257 libvpx_vp8_decoder_deps="libvpx"
2258 libvpx_vp8_encoder_deps="libvpx"
2259 libvpx_vp9_decoder_deps="libvpx"
2260 libvpx_vp9_encoder_deps="libvpx"
2261 libwavpack_encoder_deps="libwavpack"
2262 libwebp_encoder_deps="libwebp"
2263 libx264_encoder_deps="libx264"
2264 libx264rgb_encoder_deps="libx264"
2265 libx265_encoder_deps="libx265"
2266 libxavs_encoder_deps="libxavs"
2267 libxvid_encoder_deps="libxvid"
2268 libutvideo_decoder_deps="libutvideo"
2269 libutvideo_encoder_deps="libutvideo"
2270 libzvbi_teletext_decoder_deps="libzvbi"
2271
2272 # demuxers / muxers
2273 ac3_demuxer_select="ac3_parser"
2274 asf_demuxer_select="riffdec"
2275 asf_muxer_select="riffenc"
2276 asf_stream_muxer_select="asf_muxer"
2277 avi_demuxer_select="riffdec"
2278 avi_muxer_select="riffenc"
2279 avisynth_demuxer_deps="avisynth"
2280 avisynth_demuxer_select="riffdec"
2281 caf_demuxer_select="riffdec"
2282 dirac_demuxer_select="dirac_parser"
2283 dts_demuxer_select="dca_parser"
2284 dtshd_demuxer_select="dca_parser"
2285 dxa_demuxer_select="riffdec"
2286 eac3_demuxer_select="ac3_parser"
2287 f4v_muxer_select="mov_muxer"
2288 flac_demuxer_select="flac_parser"
2289 hds_muxer_select="flv_muxer"
2290 hls_muxer_select="mpegts_muxer"
2291 ipod_muxer_select="mov_muxer"
2292 ismv_muxer_select="mov_muxer"
2293 libnut_demuxer_deps="libnut"
2294 libnut_muxer_deps="libnut"
2295 matroska_audio_muxer_select="matroska_muxer"
2296 matroska_demuxer_select="riffdec"
2297 matroska_demuxer_suggest="bzlib lzo zlib"
2298 matroska_muxer_select="riffenc"
2299 mmf_muxer_select="riffenc"
2300 mov_demuxer_select="riffdec"
2301 mov_demuxer_suggest="zlib"
2302 mov_muxer_select="riffenc rtpenc_chain"
2303 mp3_demuxer_select="mpegaudio_parser"
2304 mp4_muxer_select="mov_muxer"
2305 mpegts_muxer_select="adts_muxer latm_muxer"
2306 mpegtsraw_demuxer_select="mpegts_demuxer"
2307 mxf_d10_muxer_select="mxf_muxer"
2308 nut_muxer_select="riffenc"
2309 nuv_demuxer_select="riffdec"
2310 ogg_demuxer_select="golomb"
2311 psp_muxer_select="mov_muxer"
2312 rtp_demuxer_select="sdp_demuxer"
2313 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2314 rtsp_demuxer_select="http_protocol rtpdec"
2315 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2316 sap_demuxer_select="sdp_demuxer"
2317 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2318 sdp_demuxer_select="rtpdec"
2319 smoothstreaming_muxer_select="ismv_muxer"
2320 spdif_muxer_select="aac_parser"
2321 tak_demuxer_select="tak_parser"
2322 tg2_muxer_select="mov_muxer"
2323 tgp_muxer_select="mov_muxer"
2324 vobsub_demuxer_select="mpegps_demuxer"
2325 w64_demuxer_select="wav_demuxer"
2326 w64_muxer_select="wav_muxer"
2327 wav_demuxer_select="riffdec"
2328 wav_muxer_select="riffenc"
2329 webm_muxer_select="riffenc"
2330 wtv_demuxer_select="riffdec"
2331 wtv_muxer_select="riffenc"
2332 xmv_demuxer_select="riffdec"
2333 xwma_demuxer_select="riffdec"
2334
2335 # indevs / outdevs
2336 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2337 alsa_outdev_deps="alsa_asoundlib_h"
2338 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2339 caca_outdev_deps="libcaca"
2340 decklink_outdev_deps="decklink pthreads"
2341 decklink_outdev_extralibs="-lstdc++"
2342 dshow_indev_deps="IBaseFilter"
2343 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2344 dv1394_indev_deps="dv1394"
2345 dv1394_indev_select="dv_demuxer"
2346 fbdev_indev_deps="linux_fb_h"
2347 fbdev_outdev_deps="linux_fb_h"
2348 iec61883_indev_deps="libiec61883"
2349 jack_indev_deps="jack_jack_h sem_timedwait"
2350 lavfi_indev_deps="avfilter"
2351 libcdio_indev_deps="libcdio"
2352 libdc1394_indev_deps="libdc1394"
2353 libv4l2_indev_deps="libv4l2"
2354 openal_indev_deps="openal"
2355 opengl_outdev_deps="opengl"
2356 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2357 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2358 pulse_indev_deps="libpulse"
2359 pulse_outdev_deps="libpulse"
2360 sdl_outdev_deps="sdl"
2361 sndio_indev_deps="sndio_h"
2362 sndio_outdev_deps="sndio_h"
2363 v4l_indev_deps="linux_videodev_h"
2364 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2365 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2366 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2367 vfwcap_indev_extralibs="-lavicap32"
2368 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2369 xv_outdev_extralibs="-lXv -lX11 -lXext"
2370 x11grab_indev_deps="x11grab"
2371
2372 # protocols
2373 bluray_protocol_deps="libbluray"
2374 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2375 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2376 ffrtmpcrypt_protocol_select="tcp_protocol"
2377 ffrtmphttp_protocol_deps="!librtmp_protocol"
2378 ffrtmphttp_protocol_select="http_protocol"
2379 ftp_protocol_select="tcp_protocol"
2380 gopher_protocol_select="network"
2381 http_protocol_select="tcp_protocol"
2382 httpproxy_protocol_select="tcp_protocol"
2383 https_protocol_select="tls_protocol"
2384 librtmp_protocol_deps="librtmp"
2385 librtmpe_protocol_deps="librtmp"
2386 librtmps_protocol_deps="librtmp"
2387 librtmpt_protocol_deps="librtmp"
2388 librtmpte_protocol_deps="librtmp"
2389 libssh_protocol_deps="libssh"
2390 mmsh_protocol_select="http_protocol"
2391 mmst_protocol_select="network"
2392 rtmp_protocol_deps="!librtmp_protocol"
2393 rtmp_protocol_select="tcp_protocol"
2394 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2395 rtmps_protocol_deps="!librtmp_protocol"
2396 rtmps_protocol_select="tls_protocol"
2397 rtmpt_protocol_select="ffrtmphttp_protocol"
2398 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2399 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2400 rtp_protocol_select="udp_protocol"
2401 sctp_protocol_deps="struct_sctp_event_subscribe"
2402 sctp_protocol_select="network"
2403 srtp_protocol_select="rtp_protocol"
2404 tcp_protocol_select="network"
2405 tls_protocol_deps_any="openssl gnutls"
2406 tls_protocol_select="tcp_protocol"
2407 udp_protocol_select="network"
2408 unix_protocol_deps="sys_un_h"
2409 unix_protocol_select="network"
2410
2411 # filters
2412 aconvert_filter_deps="swresample"
2413 amovie_filter_deps="avcodec avformat"
2414 aresample_filter_deps="swresample"
2415 ass_filter_deps="libass"
2416 asyncts_filter_deps="avresample"
2417 atempo_filter_deps="avcodec"
2418 atempo_filter_select="rdft"
2419 azmq_filter_deps="libzmq"
2420 blackframe_filter_deps="gpl"
2421 boxblur_filter_deps="gpl"
2422 colormatrix_filter_deps="gpl"
2423 cropdetect_filter_deps="gpl"
2424 dctdnoiz_filter_deps="avcodec"
2425 dctdnoiz_filter_select="dct"
2426 delogo_filter_deps="gpl"
2427 deshake_filter_deps="avcodec"
2428 deshake_filter_select="dsputil"
2429 drawtext_filter_deps="libfreetype"
2430 ebur128_filter_deps="gpl"
2431 flite_filter_deps="libflite"
2432 frei0r_filter_deps="frei0r dlopen"
2433 frei0r_filter_extralibs='$ldl'
2434 frei0r_src_filter_deps="frei0r dlopen"
2435 frei0r_src_filter_extralibs='$ldl'
2436 geq_filter_deps="gpl"
2437 histeq_filter_deps="gpl"
2438 hqdn3d_filter_deps="gpl"
2439 interlace_filter_deps="gpl"
2440 kerndeint_filter_deps="gpl"
2441 ladspa_filter_deps="ladspa dlopen"
2442 mcdeint_filter_deps="avcodec gpl"
2443 movie_filter_deps="avcodec avformat"
2444 mp_filter_deps="gpl avcodec swscale inline_asm"
2445 mpdecimate_filter_deps="gpl avcodec"
2446 mptestsrc_filter_deps="gpl"
2447 negate_filter_deps="lut_filter"
2448 perspective_filter_deps="gpl"
2449 ocv_filter_deps="libopencv"
2450 owdenoise_filter_deps="gpl"
2451 pan_filter_deps="swresample"
2452 phase_filter_deps="gpl"
2453 pp_filter_deps="gpl postproc"
2454 pullup_filter_deps="gpl"
2455 removelogo_filter_deps="avcodec avformat swscale"
2456 resample_filter_deps="avresample"
2457 sab_filter_deps="gpl swscale"
2458 scale_filter_deps="swscale"
2459 smartblur_filter_deps="gpl swscale"
2460 showspectrum_filter_deps="avcodec"
2461 showspectrum_filter_select="rdft"
2462 spp_filter_deps="gpl avcodec"
2463 spp_filter_select="fft"
2464 stereo3d_filter_deps="gpl"
2465 subtitles_filter_deps="avformat avcodec libass"
2466 super2xsai_filter_deps="gpl"
2467 tinterlace_filter_deps="gpl"
2468 vidstabdetect_filter_deps="libvidstab"
2469 vidstabtransform_filter_deps="libvidstab"
2470 pixfmts_super2xsai_test_deps="super2xsai_filter"
2471 tinterlace_merge_test_deps="tinterlace_filter"
2472 tinterlace_pad_test_deps="tinterlace_filter"
2473 zmq_filter_deps="libzmq"
2474
2475 # examples
2476 avio_reading="avformat avcodec avutil"
2477 avcodec_example_deps="avcodec avutil"
2478 demuxing_decoding_example_deps="avcodec avformat avutil"
2479 filter_audio_example_deps="avfilter avutil"
2480 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2481 filtering_video_example_deps="avfilter avcodec avformat avutil"
2482 metadata_example_deps="avformat avutil"
2483 muxing_example_deps="avcodec avformat avutil swscale"
2484 remuxing_example_deps="avcodec avformat avutil"
2485 resampling_audio_example_deps="avutil swresample"
2486 scaling_video_example_deps="avutil swscale"
2487 transcode_aac_example_deps="avcodec avformat swresample"
2488 transcoding_example_deps="avfilter avcodec avformat avutil"
2489
2490 # libraries
2491 avcodec_deps="avutil"
2492 avdevice_deps="avutil avcodec avformat"
2493 avfilter_deps="avutil"
2494 avformat_deps="avutil avcodec"
2495 avresample_deps="avutil"
2496 postproc_deps="avutil gpl"
2497 swscale_deps="avutil"
2498
2499 # programs
2500 ffmpeg_deps="avcodec avfilter avformat swresample"
2501 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2502                null_filter
2503                setpts_filter trim_filter"
2504 ffplay_deps="avcodec avformat swscale swresample sdl"
2505 ffplay_libs='$sdl_libs'
2506 ffplay_select="rdft crop_filter"
2507 ffprobe_deps="avcodec avformat"
2508 ffserver_deps="avformat fork sarestart"
2509 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2510
2511 # documentation
2512 podpages_deps="perl"
2513 manpages_deps="perl pod2man"
2514 htmlpages_deps="perl texi2html"
2515 txtpages_deps="perl makeinfo"
2516 doc_deps_any="manpages htmlpages podpages txtpages"
2517
2518 # default parameters
2519
2520 logfile="config.log"
2521
2522 # installation paths
2523 prefix_default="/usr/local"
2524 bindir_default='${prefix}/bin'
2525 datadir_default='${prefix}/share/ffmpeg'
2526 docdir_default='${prefix}/share/doc/ffmpeg'
2527 incdir_default='${prefix}/include'
2528 libdir_default='${prefix}/lib'
2529 mandir_default='${prefix}/share/man'
2530 shlibdir_default="$libdir_default"
2531
2532 # toolchain
2533 ar_default="ar"
2534 cc_default="gcc"
2535 cxx_default="g++"
2536 host_cc_default="gcc"
2537 cp_f="cp -f"
2538 install="install"
2539 ln_s="ln -s -f"
2540 nm_default="nm -g"
2541 objformat="elf"
2542 pkg_config_default=pkg-config
2543 ranlib="ranlib"
2544 strip_default="strip"
2545 yasmexe_default="yasm"
2546 windres_default="windres"
2547
2548 nogas=":"
2549
2550 # OS
2551 target_os_default=$(tolower $(uname -s))
2552 host_os=$target_os_default
2553
2554 # machine
2555 if test "$target_os_default" = aix; then
2556     arch_default=$(uname -p)
2557 else
2558     arch_default=$(uname -m)
2559 fi
2560 cpu="generic"
2561
2562 # configurable options
2563 enable $PROGRAM_LIST
2564 enable $DOCUMENT_LIST
2565 enable $EXAMPLE_LIST
2566 enable $(filter_out avresample $LIBRARY_LIST)
2567 enable stripping
2568
2569 enable asm
2570 enable debug
2571 enable doc
2572 enable optimizations
2573 enable runtime_cpudetect
2574 enable safe_bitstream_reader
2575 enable static
2576 enable swscale_alpha
2577
2578 # Enable hwaccels by default.
2579 enable dxva2 vaapi vdpau xvmc
2580 enable xlib
2581
2582 # build settings
2583 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2584 LIBPREF="lib"
2585 LIBSUF=".a"
2586 FULLNAME='$(NAME)$(BUILDSUF)'
2587 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2588 SLIBPREF="lib"
2589 SLIBSUF=".so"
2590 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2591 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2592 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2593 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2594 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2595 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2596
2597 asflags_filter=echo
2598 cflags_filter=echo
2599 ldflags_filter=echo
2600
2601 AS_C='-c'
2602 AS_O='-o $@'
2603 CC_C='-c'
2604 CC_E='-E -o $@'
2605 CC_O='-o $@'
2606 CXX_C='-c'
2607 CXX_O='-o $@'
2608 LD_O='-o $@'
2609 LD_LIB='-l%'
2610 LD_PATH='-L'
2611 HOSTCC_C='-c'
2612 HOSTCC_E='-E -o $@'
2613 HOSTCC_O='-o $@'
2614 HOSTLD_O='-o $@'
2615
2616 host_libs='-lm'
2617 host_cflags_filter=echo
2618 host_ldflags_filter=echo
2619
2620 target_path='$(CURDIR)'
2621
2622 # since the object filename is not given with the -MM flag, the compiler
2623 # is only able to print the basename, and we must add the path ourselves
2624 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2625 DEPFLAGS='-MM'
2626
2627 # find source path
2628 if test -f configure; then
2629     source_path=.
2630 else
2631     source_path=$(cd $(dirname "$0"); pwd)
2632     echo "$source_path" | grep -q '[[:blank:]]' &&
2633         die "Out of tree builds are impossible with whitespace in source path."
2634     test -e "$source_path/config.h" &&
2635         die "Out of tree builds are impossible with config.h in source dir."
2636 fi
2637
2638 for v in "$@"; do
2639     r=${v#*=}
2640     l=${v%"$r"}
2641     r=$(sh_quote "$r")
2642     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2643 done
2644
2645 find_things(){
2646     thing=$1
2647     pattern=$2
2648     file=$source_path/$3
2649     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2650 }
2651
2652 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2653 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2654 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2655 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2656 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2657 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2658 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2659 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2660 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2661 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2662 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2663
2664 ALL_COMPONENTS="
2665     $BSF_LIST
2666     $DECODER_LIST
2667     $DEMUXER_LIST
2668     $ENCODER_LIST
2669     $FILTER_LIST
2670     $HWACCEL_LIST
2671     $INDEV_LIST
2672     $MUXER_LIST
2673     $OUTDEV_LIST
2674     $PARSER_LIST
2675     $PROTOCOL_LIST
2676 "
2677
2678 for n in $COMPONENT_LIST; do
2679     v=$(toupper ${n%s})_LIST
2680     eval enable \$$v
2681     eval ${n}_if_any="\$$v"
2682 done
2683
2684 enable $ARCH_EXT_LIST
2685
2686 die_unknown(){
2687     echo "Unknown option \"$1\"."
2688     echo "See $0 --help for available options."
2689     exit 1
2690 }
2691
2692 print_3_columns() {
2693     cat | tr ' ' '\n' | sort | pr -r -3 -t
2694 }
2695
2696 show_list() {
2697     suffix=_$1
2698     shift
2699     echo $* | sed s/$suffix//g | print_3_columns
2700     exit 0
2701 }
2702
2703 rand_list(){
2704     IFS=', '
2705     set -- $*
2706     unset IFS
2707     for thing; do
2708         comp=${thing%:*}
2709         prob=${thing#$comp}
2710         prob=${prob#:}
2711         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2712         echo "prob ${prob:-0.5}"
2713         printf '%s\n' $comp
2714     done
2715 }
2716
2717 do_random(){
2718     action=$1
2719     shift
2720     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2721     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2722 }
2723
2724 for opt do
2725     optval="${opt#*=}"
2726     case "$opt" in
2727         --extra-ldflags=*)
2728             add_ldflags $optval
2729         ;;
2730         --extra-libs=*)
2731             add_extralibs $optval
2732         ;;
2733         --disable-devices)
2734             disable $INDEV_LIST $OUTDEV_LIST
2735         ;;
2736         --enable-debug=*)
2737             debuglevel="$optval"
2738         ;;
2739         --disable-programs)
2740             disable $PROGRAM_LIST
2741         ;;
2742         --disable-everything)
2743             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2744         ;;
2745         --disable-all)
2746             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2747             disable $LIBRARY_LIST $PROGRAM_LIST doc
2748         ;;
2749         --enable-random|--disable-random)
2750             action=${opt%%-random}
2751             do_random ${action#--} $COMPONENT_LIST
2752         ;;
2753         --enable-random=*|--disable-random=*)
2754             action=${opt%%-random=*}
2755             do_random ${action#--} $optval
2756         ;;
2757         --enable-*=*|--disable-*=*)
2758             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2759             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2760             eval list=\$$(toupper $thing)_LIST
2761             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2762             list=$(filter "$name" $list)
2763             [ "$list" = "" ] && warn "Option $opt did not match anything"
2764             $action $list
2765         ;;
2766         --enable-?*|--disable-?*)
2767             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2768             if is_in $option $COMPONENT_LIST; then
2769                 test $action = disable && action=unset
2770                 eval $action \$$(toupper ${option%s})_LIST
2771             elif is_in $option $CMDLINE_SELECT; then
2772                 $action $option
2773             else
2774                 die_unknown $opt
2775             fi
2776         ;;
2777         --list-*)
2778             NAME="${opt#--list-}"
2779             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2780             NAME=${NAME%s}
2781             eval show_list $NAME \$$(toupper $NAME)_LIST
2782         ;;
2783         --help|-h) show_help
2784         ;;
2785         --fatal-warnings) enable fatal_warnings
2786         ;;
2787         *)
2788             optname="${opt%%=*}"
2789             optname="${optname#--}"
2790             optname=$(echo "$optname" | sed 's/-/_/g')
2791             if is_in $optname $CMDLINE_SET; then
2792                 eval $optname='$optval'
2793             elif is_in $optname $CMDLINE_APPEND; then
2794                 append $optname "$optval"
2795             else
2796                 die_unknown $opt
2797             fi
2798         ;;
2799     esac
2800 done
2801
2802 disabled logging && logfile=/dev/null
2803
2804 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2805 set >> $logfile
2806
2807 test -n "$cross_prefix" && enable cross_compile
2808
2809 if enabled cross_compile; then
2810     test -n "$arch" && test -n "$target_os" ||
2811         die "Must specify target arch and OS when cross-compiling"
2812 fi
2813
2814 ar_default="${cross_prefix}${ar_default}"
2815 cc_default="${cross_prefix}${cc_default}"
2816 cxx_default="${cross_prefix}${cxx_default}"
2817 nm_default="${cross_prefix}${nm_default}"
2818 pkg_config_default="${cross_prefix}${pkg_config_default}"
2819 ranlib="${cross_prefix}${ranlib}"
2820 strip_default="${cross_prefix}${strip_default}"
2821 windres_default="${cross_prefix}${windres_default}"
2822
2823 sysinclude_default="${sysroot}/usr/include"
2824
2825 test -n "$valgrind" && toolchain="valgrind-memcheck"
2826
2827 case "$toolchain" in
2828     clang-asan)
2829         cc_default="clang"
2830         add_cflags  -fsanitize=address
2831         add_ldflags -fsanitize=address
2832     ;;
2833     clang-tsan)
2834         cc_default="clang"
2835         add_cflags  -fsanitize=thread -pie
2836         add_ldflags -fsanitize=thread -pie
2837     ;;
2838     clang-usan)
2839         cc_default="clang"
2840         add_cflags  -fsanitize=undefined
2841         add_ldflags -fsanitize=undefined
2842     ;;
2843     gcc-asan)
2844         cc_default="gcc"
2845         add_cflags  -fsanitize=address
2846         add_ldflags -fsanitize=address
2847     ;;
2848     gcc-tsan)
2849         cc_default="gcc"
2850         add_cflags  -fsanitize=thread -pie -fPIC
2851         add_ldflags -fsanitize=thread -pie -fPIC
2852     ;;
2853     gcc-usan)
2854         cc_default="gcc"
2855         add_cflags  -fsanitize=undefined
2856         add_ldflags -fsanitize=undefined
2857     ;;
2858     valgrind-massif)
2859         target_exec_default=${valgrind:-"valgrind"}
2860         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"
2861     ;;
2862     valgrind-memcheck)
2863         target_exec_default=${valgrind:-"valgrind"}
2864         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2865     ;;
2866     msvc)
2867         # Check whether the current MSVC version needs the C99 converter.
2868         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2869         # support enough of C99 to build ffmpeg. Default to the new
2870         # behaviour if the regexp was unable to match anything, since this
2871         # successfully parses the version number of existing supported
2872         # versions that require the converter (MSVC 2010 and 2012).
2873         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2874         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2875             cc_default="cl"
2876         else
2877             cc_default="c99wrap cl"
2878         fi
2879         ld_default="link"
2880         nm_default="dumpbin -symbols"
2881         ar_default="lib"
2882         target_os_default="win32"
2883         # Use a relative path for TMPDIR. This makes sure all the
2884         # ffconf temp files are written with a relative path, avoiding
2885         # issues with msys/win32 path conversion for MSVC parameters
2886         # such as -Fo<file> or -out:<file>.
2887         TMPDIR=.
2888     ;;
2889     icl)
2890         cc_default="icl"
2891         ld_default="xilink"
2892         nm_default="dumpbin -symbols"
2893         ar_default="xilib"
2894         target_os_default="win32"
2895         TMPDIR=.
2896     ;;
2897     gcov)
2898         add_cflags  -fprofile-arcs -ftest-coverage
2899         add_ldflags -fprofile-arcs -ftest-coverage
2900     ;;
2901     hardened)
2902         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2903         add_ldflags -Wl,-z,relro -Wl,-z,now
2904     ;;
2905     ?*)
2906         die "Unknown toolchain $toolchain"
2907     ;;
2908 esac
2909
2910 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2911 enabled cross_compile || host_cc_default=$cc
2912 set_default host_cc
2913
2914 if ! $pkg_config --version >/dev/null 2>&1; then
2915     warn "$pkg_config not found, library detection may fail."
2916     pkg_config=false
2917 fi
2918
2919 exesuf() {
2920     case $1 in
2921         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2922     esac
2923 }
2924
2925 EXESUF=$(exesuf $target_os)
2926 HOSTEXESUF=$(exesuf $host_os)
2927
2928 # set temporary file name
2929 : ${TMPDIR:=$TEMPDIR}
2930 : ${TMPDIR:=$TMP}
2931 : ${TMPDIR:=/tmp}
2932
2933 if [ -n "$tempprefix" ] ; then
2934     mktemp(){
2935         echo $tempprefix.${HOSTNAME}.${UID}
2936     }
2937 elif ! check_cmd mktemp -u XXXXXX; then
2938     # simple replacement for missing mktemp
2939     # NOT SAFE FOR GENERAL USE
2940     mktemp(){
2941         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2942     }
2943 fi
2944
2945 tmpfile(){
2946     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2947         (set -C; exec > $tmp) 2>/dev/null ||
2948         die "Unable to create temporary file in $TMPDIR."
2949     append TMPFILES $tmp
2950     eval $1=$tmp
2951 }
2952
2953 trap 'rm -f -- $TMPFILES' EXIT
2954
2955 tmpfile TMPASM .asm
2956 tmpfile TMPC   .c
2957 tmpfile TMPCPP .cpp
2958 tmpfile TMPE   $EXESUF
2959 tmpfile TMPH   .h
2960 tmpfile TMPO   .o
2961 tmpfile TMPS   .S
2962 tmpfile TMPSH  .sh
2963 tmpfile TMPV   .ver
2964
2965 unset -f mktemp
2966
2967 chmod +x $TMPE
2968
2969 # make sure we can execute files in $TMPDIR
2970 cat > $TMPSH 2>> $logfile <<EOF
2971 #! /bin/sh
2972 EOF
2973 chmod +x $TMPSH >> $logfile 2>&1
2974 if ! $TMPSH >> $logfile 2>&1; then
2975     cat <<EOF
2976 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2977 variable to another directory and make sure that it is not mounted noexec.
2978 EOF
2979     die "Sanity test failed."
2980 fi
2981
2982 ccc_flags(){
2983     for flag; do
2984         case $flag in
2985             -std=c99)           echo -c99                       ;;
2986             -mcpu=*)            echo -arch ${flag#*=}           ;;
2987             -mieee)             echo -ieee                      ;;
2988             -O*|-fast)          echo $flag                      ;;
2989             -fno-math-errno)    echo -assume nomath_errno       ;;
2990             -g)                 echo -g3                        ;;
2991             -Wall)              echo -msg_enable level2         ;;
2992             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2993             -Wl,*)              echo $flag                      ;;
2994             -f*|-W*)                                            ;;
2995             *)                  echo $flag                      ;;
2996         esac
2997    done
2998 }
2999
3000 cparser_flags(){
3001     for flag; do
3002         case $flag in
3003             -Wno-switch)             echo -Wno-switch-enum ;;
3004             -Wno-format-zero-length) ;;
3005             -Wdisabled-optimization) ;;
3006             -Wno-pointer-sign)       echo -Wno-other ;;
3007             *)                       echo $flag ;;
3008         esac
3009     done
3010 }
3011
3012 msvc_common_flags(){
3013     for flag; do
3014         case $flag in
3015             # In addition to specifying certain flags under the compiler
3016             # specific filters, they must be specified here as well or else the
3017             # generic catch all at the bottom will print the original flag.
3018             -Wall)                ;;
3019             -std=c99)             ;;
3020             # Common flags
3021             -fomit-frame-pointer) ;;
3022             -g)                   echo -Z7 ;;
3023             -fno-math-errno)      ;;
3024             -fno-common)          ;;
3025             -fno-signed-zeros)    ;;
3026             -fPIC)                ;;
3027             -mthumb)              ;;
3028             -march=*)             ;;
3029             -lz)                  echo zlib.lib ;;
3030             -lavifil32)           echo vfw32.lib ;;
3031             -lavicap32)           echo vfw32.lib user32.lib ;;
3032             -l*)                  echo ${flag#-l}.lib ;;
3033             *)                    echo $flag ;;
3034         esac
3035     done
3036 }
3037
3038 msvc_flags(){
3039     msvc_common_flags "$@"
3040     for flag; do
3041         case $flag in
3042             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3043                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3044                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3045                                        -wd4554 \
3046                                        -wd4273 ;;
3047         esac
3048     done
3049 }
3050
3051 icl_flags(){
3052     msvc_common_flags "$@"
3053     for flag; do
3054         case $flag in
3055             # Despite what Intel's documentation says -Wall, which is supported
3056             # on Windows, does enable remarks so disable them here.
3057             -Wall)                echo $flag -Qdiag-disable:remark ;;
3058             -std=c99)             echo -Qstd=c99 ;;
3059         esac
3060     done
3061 }
3062
3063 pgi_flags(){
3064     for flag; do
3065         case $flag in
3066             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3067             -fomit-frame-pointer) echo -Mnoframe ;;
3068             -g)                   echo -gopt ;;
3069             *)                    echo $flag ;;
3070         esac
3071     done
3072 }
3073
3074 suncc_flags(){
3075     for flag; do
3076         case $flag in
3077             -march=*|-mcpu=*)
3078                 case "${flag#*=}" in
3079                     native)                   echo -xtarget=native       ;;
3080                     v9|niagara)               echo -xarch=sparc          ;;
3081                     ultrasparc)               echo -xarch=sparcvis       ;;
3082                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3083                     i586|pentium)             echo -xchip=pentium        ;;
3084                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3085                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3086                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3087                     pentium4*)          echo -xtarget=pentium4           ;;
3088                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3089                     *-sse3)             echo -xarch=sse3                 ;;
3090                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3091                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3092                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3093                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3094                     bdver*)                    echo -xarch=avx           ;;
3095                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3096                     k8|opteron|athlon64|athlon-fx)
3097                                                echo -xarch=sse2a         ;;
3098                     athlon*)                   echo -xarch=pentium_proa  ;;
3099                 esac
3100                 ;;
3101             -std=c99)             echo -xc99              ;;
3102             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3103             -fPIC)                echo -KPIC -xcode=pic32 ;;
3104             -W*,*)                echo $flag              ;;
3105             -f*-*|-W*|-mimpure-text)                      ;;
3106             -shared)              echo -G                 ;;
3107             *)                    echo $flag              ;;
3108         esac
3109     done
3110 }
3111
3112 tms470_flags(){
3113     for flag; do
3114         case $flag in
3115             -march=*|-mcpu=*)
3116                 case "${flag#*=}" in
3117                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3118                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3119                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3120                     armv6*|arm11*)          echo -mv=6   ;;
3121                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3122                                             echo -mv=5e  ;;
3123                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3124                 esac
3125                 ;;
3126             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3127             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3128             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3129             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3130             -msoft-float)   echo --float_support=vfplib       ;;
3131             -O[0-3]|-mf=*)  echo $flag                        ;;
3132             -g)             echo -g -mn                       ;;
3133             -pds=*)         echo $flag                        ;;
3134             -D*|-I*)        echo $flag                        ;;
3135             --gcc|--abi=*)  echo $flag                        ;;
3136             -me)            echo $flag                        ;;
3137         esac
3138     done
3139 }
3140
3141 probe_cc(){
3142     pfx=$1
3143     _cc=$2
3144
3145     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3146     unset _ld_o _ldflags _ld_lib _ld_path
3147     unset _depflags _DEPCMD _DEPFLAGS
3148     _flags_filter=echo
3149
3150     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3151         true # no-op to avoid reading stdin in following checks
3152     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3153         _type=llvm_gcc
3154         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3155         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3156         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3157         _cflags_speed='-O3'
3158         _cflags_size='-Os'
3159     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3160         _type=gcc
3161         gcc_version=$($_cc --version | head -n1)
3162         gcc_basever=$($_cc -dumpversion)
3163         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3164         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3165         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3166         if ! $_cc -dumpversion | grep -q '^2\.'; then
3167             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3168         fi
3169         _cflags_speed='-O3'
3170         _cflags_size='-Os'
3171     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3172         _type=icc
3173         _ident=$($_cc --version | head -n1)
3174         _depflags='-MMD'
3175         _cflags_speed='-O3'
3176         _cflags_size='-Os'
3177         _cflags_noopt='-O1'
3178     elif $_cc -v 2>&1 | grep -q xlc; then
3179         _type=xlc
3180         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3181         _cflags_speed='-O5'
3182         _cflags_size='-O5 -qcompact'
3183     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3184         _type=ccc
3185         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3186         _DEPFLAGS='-M'
3187         _cflags_speed='-fast'
3188         _cflags_size='-O1'
3189         _flags_filter=ccc_flags
3190     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
3191         test -d "$sysroot" || die "No valid sysroot specified."
3192         _type=armcc
3193         _ident=$($_cc --vsn | head -n1)
3194         armcc_conf="$PWD/armcc.conf"
3195         $_cc --arm_linux_configure                 \
3196              --arm_linux_config_file="$armcc_conf" \
3197              --configure_sysroot="$sysroot"        \
3198              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3199              die "Error creating armcc configuration file."
3200         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3201         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3202         as_default="${cross_prefix}gcc"
3203         _depflags='-MMD'
3204         _cflags_speed='-O3'
3205         _cflags_size='-Os'
3206     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3207         _type=tms470
3208         _ident=$($_cc -version | head -n1 | tr -s ' ')
3209         _flags='--gcc --abi=eabi -me'
3210         _cc_e='-ppl -fe=$@'
3211         _cc_o='-fe=$@'
3212         _depflags='-ppa -ppd=$(@:.o=.d)'
3213         _cflags_speed='-O3 -mf=5'
3214         _cflags_size='-O3 -mf=2'
3215         _flags_filter=tms470_flags
3216     elif $_cc -v 2>&1 | grep -q clang; then
3217         _type=clang
3218         _ident=$($_cc --version | head -n1)
3219         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3220         _cflags_speed='-O3'
3221         _cflags_size='-Os'
3222     elif $_cc -V 2>&1 | grep -q Sun; then
3223         _type=suncc
3224         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3225         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3226         _DEPFLAGS='-xM1 -xc99'
3227         _ldflags='-std=c99'
3228         _cflags_speed='-O5'
3229         _cflags_size='-O5 -xspace'
3230         _flags_filter=suncc_flags
3231     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3232         _type=pathscale
3233         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3234         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3235         _cflags_speed='-O2'
3236         _cflags_size='-Os'
3237         _flags_filter='filter_out -Wdisabled-optimization'
3238     elif $_cc -v 2>&1 | grep -q Open64; then
3239         _type=open64
3240         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3241         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3242         _cflags_speed='-O2'
3243         _cflags_size='-Os'
3244         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3245     elif $_cc -V 2>&1 | grep -q Portland; then
3246         _type=pgi
3247         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3248         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3249         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3250         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3251         _cflags_noopt="-O"
3252         _flags_filter=pgi_flags
3253     elif $_cc 2>&1 | grep -q Microsoft; then
3254         _type=msvc
3255         _ident=$($cc 2>&1 | head -n1)
3256         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3257         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3258         _cflags_speed="-O2"
3259         _cflags_size="-O1"
3260         if $_cc 2>&1 | grep -q Linker; then
3261             _ld_o='-out:$@'
3262         else
3263             _ld_o='-Fe$@'
3264         fi
3265         _cc_o='-Fo$@'
3266         _cc_e='-P -Fi$@'
3267         _flags_filter=msvc_flags
3268         _ld_lib='lib%.a'
3269         _ld_path='-libpath:'
3270         _flags='-nologo'
3271         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3272         if [ $pfx = hostcc ]; then
3273             append _cflags -Dsnprintf=_snprintf
3274         fi
3275         disable stripping
3276     elif $_cc 2>&1 | grep -q Intel; then
3277         _type=icl
3278         _ident=$($cc 2>&1 | head -n1)
3279         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3280         # Not only is O3 broken on 13.x+ but it is slower on all previous
3281         # versions (tested) as well.
3282         _cflags_speed="-O2"
3283         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3284         if $_cc 2>&1 | grep -q Linker; then
3285             _ld_o='-out:$@'
3286         else
3287             _ld_o='-Fe$@'
3288         fi
3289         _cc_o='-Fo$@'
3290         _cc_e='-P'
3291         _flags_filter=icl_flags
3292         _ld_lib='lib%.a'
3293         _ld_path='-libpath:'
3294         # -Qdiag-error to make icl error when seeing certain unknown arguments
3295         _flags='-nologo -Qdiag-error:4044,10157'
3296         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3297         # with MSVC which enables it by default.
3298         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3299         if [ $pfx = hostcc ]; then
3300             append _cflags -Dsnprintf=_snprintf
3301         fi
3302     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3303         _type=cparser
3304         _ident=$($_cc --version | head -n1)
3305         _depflags='-MMD'
3306         _cflags_speed='-O4'
3307         _cflags_size='-O2'
3308         _flags_filter=cparser_flags
3309     fi
3310
3311     eval ${pfx}_type=\$_type
3312     eval ${pfx}_ident=\$_ident
3313 }
3314
3315 set_ccvars(){
3316     eval ${1}_C=\${_cc_c-\${${1}_C}}
3317     eval ${1}_E=\${_cc_e-\${${1}_E}}
3318     eval ${1}_O=\${_cc_o-\${${1}_O}}
3319
3320     if [ -n "$_depflags" ]; then
3321         eval ${1}_DEPFLAGS=\$_depflags
3322     else
3323         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3324         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3325         eval DEP${1}FLAGS=\$_flags
3326     fi
3327 }
3328
3329 probe_cc cc "$cc"
3330 cflags_filter=$_flags_filter
3331 cflags_speed=$_cflags_speed
3332 cflags_size=$_cflags_size
3333 cflags_noopt=$_cflags_noopt
3334 add_cflags $_flags $_cflags
3335 cc_ldflags=$_ldflags
3336 set_ccvars CC
3337
3338 probe_cc hostcc "$host_cc"
3339 host_cflags_filter=$_flags_filter
3340 add_host_cflags  $_flags $_cflags
3341 set_ccvars HOSTCC
3342
3343 test -n "$cc_type" && enable $cc_type ||
3344     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3345
3346 : ${as_default:=$cc}
3347 : ${dep_cc_default:=$cc}
3348 : ${ld_default:=$cc}
3349 : ${host_ld_default:=$host_cc}
3350 set_default ar as dep_cc ld host_ld windres
3351
3352 probe_cc as "$as"
3353 asflags_filter=$_flags_filter
3354 add_asflags $_flags $_cflags
3355 set_ccvars AS
3356
3357 probe_cc ld "$ld"
3358 ldflags_filter=$_flags_filter
3359 add_ldflags $_flags $_ldflags
3360 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3361 LD_O=${_ld_o-$LD_O}
3362 LD_LIB=${_ld_lib-$LD_LIB}
3363 LD_PATH=${_ld_path-$LD_PATH}
3364
3365 probe_cc hostld "$host_ld"
3366 host_ldflags_filter=$_flags_filter
3367 add_host_ldflags $_flags $_ldflags
3368 HOSTLD_O=${_ld_o-$HOSTLD_O}
3369
3370 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3371     probe_cc depcc "$dep_cc"
3372     CCDEP=${_DEPCMD:-$DEPCMD}
3373     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3374     DEPCCFLAGS=$_flags
3375 fi
3376
3377 if $ar 2>&1 | grep -q Microsoft; then
3378     arflags="-nologo"
3379     ar_o='-out:$@'
3380 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3381     arflags="rq"
3382     ar_o='$@'
3383 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3384     arflags='-Xany -r -c'
3385     ar_o='$@'
3386 else
3387     arflags="rc"
3388     ar_o='$@'
3389 fi
3390
3391 add_cflags $extra_cflags
3392 add_cxxflags $extra_cxxflags
3393 add_asflags $extra_cflags
3394
3395 if test -n "$sysroot"; then
3396     case "$cc_type" in
3397         gcc|llvm_gcc|clang)
3398             add_cppflags --sysroot="$sysroot"
3399             add_ldflags --sysroot="$sysroot"
3400         ;;
3401         tms470)
3402             add_cppflags -I"$sysinclude"
3403             add_ldflags  --sysroot="$sysroot"
3404         ;;
3405     esac
3406 fi
3407
3408 if test "$cpu" = host; then
3409     enabled cross_compile &&
3410         die "--cpu=host makes no sense when cross-compiling."
3411
3412     case "$cc_type" in
3413         gcc|llvm_gcc)
3414             check_native(){
3415                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3416                 sed -n "/cc1.*$1=/{
3417                             s/.*$1=\\([^ ]*\\).*/\\1/
3418                             p
3419                             q
3420                         }" $TMPE
3421             }
3422             cpu=$(check_native -march || check_native -mcpu)
3423         ;;
3424     esac
3425
3426     test "${cpu:-host}" = host &&
3427         die "--cpu=host not supported with compiler $cc"
3428 fi
3429
3430 # Deal with common $arch aliases
3431 case "$arch" in
3432     aarch64|arm64)
3433         arch="aarch64"
3434     ;;
3435     arm*|iPad*|iPhone*)
3436         arch="arm"
3437     ;;
3438     mips*|IP*)
3439         arch="mips"
3440     ;;
3441     parisc*|hppa*)
3442         arch="parisc"
3443     ;;
3444     "Power Macintosh"|ppc*|powerpc*)
3445         arch="ppc"
3446     ;;
3447     s390|s390x)
3448         arch="s390"
3449     ;;
3450     sh4|sh)
3451         arch="sh4"
3452     ;;
3453     sun4u|sparc*)
3454         arch="sparc"
3455     ;;
3456     tilegx|tile-gx)
3457         arch="tilegx"
3458     ;;
3459     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3460         arch="x86"
3461     ;;
3462 esac
3463
3464 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3465 enable $arch
3466
3467 # Add processor-specific flags
3468 if enabled aarch64; then
3469
3470     case $cpu in
3471         armv*)
3472             cpuflags="-march=$cpu"
3473         ;;
3474         *)
3475             cpuflags="-mcpu=$cpu"
3476         ;;
3477     esac
3478
3479 elif enabled alpha; then
3480
3481     cpuflags="-mcpu=$cpu"
3482
3483 elif enabled arm; then
3484
3485     check_arm_arch() {
3486         check_cpp_condition stddef.h \
3487             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3488             $cpuflags
3489     }
3490
3491     probe_arm_arch() {
3492         if   check_arm_arch 4;        then echo armv4;
3493         elif check_arm_arch 4T;       then echo armv4t;
3494         elif check_arm_arch 5;        then echo armv5;
3495         elif check_arm_arch 5E;       then echo armv5e;
3496         elif check_arm_arch 5T;       then echo armv5t;
3497         elif check_arm_arch 5TE;      then echo armv5te;
3498         elif check_arm_arch 5TEJ;     then echo armv5te;
3499         elif check_arm_arch 6;        then echo armv6;
3500         elif check_arm_arch 6J;       then echo armv6j;
3501         elif check_arm_arch 6K;       then echo armv6k;
3502         elif check_arm_arch 6Z;       then echo armv6z;
3503         elif check_arm_arch 6ZK;      then echo armv6zk;
3504         elif check_arm_arch 6T2;      then echo armv6t2;
3505         elif check_arm_arch 7;        then echo armv7;
3506         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3507         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3508         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3509         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3510         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3511         fi
3512     }
3513
3514     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3515
3516     case $cpu in
3517         armv*)
3518             cpuflags="-march=$cpu"
3519             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3520         ;;
3521         *)
3522             cpuflags="-mcpu=$cpu"
3523             case $cpu in
3524                 cortex-a*)                               subarch=armv7a  ;;
3525                 cortex-r*)                               subarch=armv7r  ;;
3526                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3527                 arm11*)                                  subarch=armv6   ;;
3528                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3529                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3530                 *)                             subarch=$(probe_arm_arch) ;;
3531             esac
3532         ;;
3533     esac
3534
3535     case "$subarch" in
3536         armv5t*)    enable fast_clz                ;;
3537         armv[6-8]*) enable fast_clz fast_unaligned ;;
3538     esac
3539
3540 elif enabled avr32; then
3541
3542     case $cpu in
3543         ap7[02]0[0-2])
3544             subarch="avr32_ap"
3545             cpuflags="-mpart=$cpu"
3546         ;;
3547         ap)
3548             subarch="avr32_ap"
3549             cpuflags="-march=$cpu"
3550         ;;
3551         uc3[ab]*)
3552             subarch="avr32_uc"
3553             cpuflags="-mcpu=$cpu"
3554         ;;
3555         uc)
3556             subarch="avr32_uc"
3557             cpuflags="-march=$cpu"
3558         ;;
3559     esac
3560
3561 elif enabled bfin; then
3562
3563     cpuflags="-mcpu=$cpu"
3564
3565 elif enabled mips; then
3566
3567     cpuflags="-march=$cpu"
3568
3569     case $cpu in
3570         24kc)
3571             disable mipsfpu
3572             disable mipsdspr1
3573             disable mipsdspr2
3574         ;;
3575         24kf*)
3576             disable mipsdspr1
3577             disable mipsdspr2
3578         ;;
3579         24kec|34kc|1004kc)
3580             disable mipsfpu
3581             disable mipsdspr2
3582         ;;
3583         24kef*|34kf*|1004kf*)
3584             disable mipsdspr2
3585         ;;
3586         74kc)
3587             disable mipsfpu
3588         ;;
3589     esac
3590
3591 elif enabled ppc; then
3592
3593     case $(tolower $cpu) in
3594         601|ppc601|powerpc601)
3595             cpuflags="-mcpu=601"
3596             disable altivec
3597         ;;
3598         603*|ppc603*|powerpc603*)
3599             cpuflags="-mcpu=603"
3600             disable altivec
3601         ;;
3602         604*|ppc604*|powerpc604*)
3603             cpuflags="-mcpu=604"
3604             disable altivec
3605         ;;
3606         g3|75*|ppc75*|powerpc75*)
3607             cpuflags="-mcpu=750"
3608             disable altivec
3609         ;;
3610         g4|745*|ppc745*|powerpc745*)
3611             cpuflags="-mcpu=7450"
3612         ;;
3613         74*|ppc74*|powerpc74*)
3614             cpuflags="-mcpu=7400"
3615         ;;
3616         g5|970|ppc970|powerpc970)
3617             cpuflags="-mcpu=970"
3618         ;;
3619         power[3-7]*)
3620             cpuflags="-mcpu=$cpu"
3621         ;;
3622         cell)
3623             cpuflags="-mcpu=cell"
3624             enable ldbrx
3625         ;;
3626         e500mc)
3627             cpuflags="-mcpu=e500mc"
3628             disable altivec
3629         ;;
3630         e500v2)
3631             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3632             disable altivec
3633         ;;
3634         e500)
3635             cpuflags="-mcpu=8540 -mhard-float"
3636             disable altivec
3637         ;;
3638     esac
3639
3640 elif enabled sparc; then
3641
3642     case $cpu in
3643         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3644             cpuflags="-mcpu=$cpu"
3645         ;;
3646         ultrasparc*|niagara[234])
3647             cpuflags="-mcpu=$cpu"
3648         ;;
3649     esac
3650
3651 elif enabled x86; then
3652
3653     case $cpu in
3654         i[345]86|pentium)
3655             cpuflags="-march=$cpu"
3656             disable mmx
3657         ;;
3658         # targets that do NOT support nopl and conditional mov (cmov)
3659         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3660             cpuflags="-march=$cpu"
3661             disable i686
3662         ;;
3663         # targets that do support nopl and conditional mov (cmov)
3664         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3665             cpuflags="-march=$cpu"
3666             enable i686
3667             enable fast_cmov
3668         ;;
3669         # targets that do support conditional mov but on which it's slow
3670         pentium4|pentium4m|prescott|nocona)
3671             cpuflags="-march=$cpu"
3672             enable i686
3673             disable fast_cmov
3674         ;;
3675     esac
3676
3677 fi
3678
3679 if [ "$cpu" != generic ]; then
3680     add_cflags  $cpuflags
3681     add_asflags $cpuflags
3682 fi
3683
3684 # compiler sanity check
3685 check_exec <<EOF
3686 int main(void){ return 0; }
3687 EOF
3688 if test "$?" != 0; then
3689     echo "$cc is unable to create an executable file."
3690     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3691         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3692         echo "Only do this if you know what cross compiling means."
3693     fi
3694     die "C compiler test failed."
3695 fi
3696
3697 add_cppflags -D_ISOC99_SOURCE
3698 add_cxxflags -D__STDC_CONSTANT_MACROS
3699 check_cflags -std=c99
3700 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3701 #include <stdlib.h>
3702 EOF
3703 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3704 #include <stdlib.h>
3705 EOF
3706
3707 add_host_cppflags -D_ISOC99_SOURCE
3708 check_host_cflags -std=c99
3709 check_host_cflags -Wall
3710 check_host_cflags -O3
3711
3712 check_64bit(){
3713     arch32=$1
3714     arch64=$2
3715     expr=$3
3716     check_code cc "" "int test[2*($expr) - 1]" &&
3717         subarch=$arch64 || subarch=$arch32
3718 }
3719
3720 case "$arch" in
3721     aarch64|alpha|ia64)
3722         spic=$shared
3723     ;;
3724     mips)
3725         check_64bit mips mips64 '_MIPS_SIM > 1'
3726         spic=$shared
3727     ;;
3728     parisc)
3729         check_64bit parisc parisc64 'sizeof(void *) > 4'
3730         spic=$shared
3731     ;;
3732     ppc)
3733         check_64bit ppc ppc64 'sizeof(void *) > 4'
3734         spic=$shared
3735     ;;
3736     s390)
3737         check_64bit s390 s390x 'sizeof(void *) > 4'
3738         spic=$shared
3739     ;;
3740     sparc)
3741         check_64bit sparc sparc64 'sizeof(void *) > 4'
3742         spic=$shared
3743     ;;
3744     x86)
3745         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3746         if test "$subarch" = "x86_64"; then
3747             spic=$shared
3748         fi
3749     ;;
3750     ppc)
3751         check_cc <<EOF && subarch="ppc64"
3752         int test[(int)sizeof(char*) - 7];
3753 EOF
3754     ;;
3755 esac
3756
3757 enable $subarch
3758 enabled spic && enable_weak pic
3759
3760 # OS specific
3761 case $target_os in
3762     aix)
3763         SHFLAGS=-shared
3764         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3765         enabled shared && add_ldflags -Wl,-brtl
3766         ;;
3767     haiku)
3768         prefix_default="/boot/common"
3769         network_extralibs="-lnetwork"
3770         host_libs=
3771         ;;
3772     sunos)
3773         SHFLAGS='-shared -Wl,-h,$$(@F)'
3774         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3775         network_extralibs="-lsocket -lnsl"
3776         # When using suncc to build, the Solaris linker will mark
3777         # an executable with each instruction set encountered by
3778         # the Solaris assembler.  As our libraries contain their own
3779         # guards for processor-specific code, instead suppress
3780         # generation of the HWCAPS ELF section on Solaris x86 only.
3781         enabled_all suncc x86 &&
3782             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3783             add_ldflags -Wl,-M,mapfile
3784         nm_default='nm -P -g'
3785         ;;
3786     netbsd)
3787         disable symver
3788         oss_indev_extralibs="-lossaudio"
3789         oss_outdev_extralibs="-lossaudio"
3790         enabled gcc || check_ldflags -Wl,-zmuldefs
3791         ;;
3792     openbsd|bitrig)
3793         disable symver
3794         SHFLAGS='-shared'
3795         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3796         SLIB_INSTALL_LINKS=
3797         oss_indev_extralibs="-lossaudio"
3798         oss_outdev_extralibs="-lossaudio"
3799         ;;
3800     dragonfly)
3801         disable symver
3802         ;;
3803     freebsd)
3804         ;;
3805     bsd/os)
3806         add_extralibs -lpoll -lgnugetopt
3807         strip="strip -d"
3808         ;;
3809     darwin)
3810         gas="gas-preprocessor.pl $cc"
3811         enabled ppc && add_asflags -force_cpusubtype_ALL
3812         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3813         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3814         strip="${strip} -x"
3815         add_ldflags -Wl,-dynamic,-search_paths_first
3816         SLIBSUF=".dylib"
3817         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3818         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3819         objformat="macho"
3820         enabled x86_64 && objformat="macho64"
3821         enabled_any pic shared ||
3822             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3823         ;;
3824     mingw32*)
3825         if test $target_os = "mingw32ce"; then
3826             disable network
3827         else
3828             target_os=mingw32
3829         fi
3830         LIBTARGET=i386
3831         if enabled x86_64; then
3832             LIBTARGET="i386:x86-64"
3833         elif enabled arm; then
3834             LIBTARGET=arm-wince
3835         fi
3836         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3837         check_ldflags -Wl,--nxcompat
3838         check_ldflags -Wl,--dynamicbase
3839         shlibdir_default="$bindir_default"
3840         SLIBPREF=""
3841         SLIBSUF=".dll"
3842         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3843         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3844         dlltool="${cross_prefix}dlltool"
3845         if check_cmd lib.exe -list; then
3846             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3847             if enabled x86_64; then
3848                 LIBTARGET=x64
3849             fi
3850         elif check_cmd $dlltool --version; then
3851             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3852         fi
3853         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3854         SLIB_INSTALL_LINKS=
3855         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3856         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3857         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3858         objformat="win32"
3859         ranlib=:
3860         enable dos_paths
3861         ;;
3862     win32|win64)
3863         disable symver
3864         if enabled shared; then
3865             # Link to the import library instead of the normal static library
3866             # for shared libs.
3867             LD_LIB='%.lib'
3868             # Cannot build both shared and static libs with MSVC or icl.
3869             disable static
3870         fi
3871         shlibdir_default="$bindir_default"
3872         SLIBPREF=""
3873         SLIBSUF=".dll"
3874         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3875         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3876         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3877         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3878         SLIB_INSTALL_LINKS=
3879         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3880         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3881         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3882         objformat="win32"
3883         ranlib=:
3884         enable dos_paths
3885         ;;
3886     cygwin*)
3887         target_os=cygwin
3888         shlibdir_default="$bindir_default"
3889         SLIBPREF="cyg"
3890         SLIBSUF=".dll"
3891         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3892         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3893         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3894         SLIB_INSTALL_LINKS=
3895         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3896         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3897         objformat="win32"
3898         enable dos_paths
3899         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3900         ;;
3901     *-dos|freedos|opendos)
3902         network_extralibs="-lsocket"
3903         objformat="coff"
3904         enable dos_paths
3905         add_cppflags -U__STRICT_ANSI__
3906         ;;
3907     linux)
3908         enable dv1394
3909         ;;
3910     irix*)
3911         target_os=irix
3912         ranlib="echo ignoring ranlib"
3913         ;;
3914     os/2*)
3915         strip="lxlite -CS"
3916         ln_s="cp -f"
3917         objformat="aout"
3918         add_cppflags -D_GNU_SOURCE
3919         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3920         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3921         LIBSUF="_s.a"
3922         SLIBPREF=""
3923         SLIBSUF=".dll"
3924         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3925         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3926         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3927             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3928             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3929             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3930             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3931             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3932         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3933             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3934         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3935         enable dos_paths
3936         enable_weak os2threads
3937         ;;
3938     gnu/kfreebsd)
3939         add_cppflags -D_BSD_SOURCE
3940         ;;
3941     gnu)
3942         ;;
3943     qnx)
3944         add_cppflags -D_QNX_SOURCE
3945         network_extralibs="-lsocket"
3946         ;;
3947     symbian)
3948         SLIBSUF=".dll"
3949         enable dos_paths
3950         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3951         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3952         add_ldflags -Wl,--target1-abs,--no-undefined \
3953                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3954                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3955         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3956                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3957                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3958         ;;
3959     osf1)
3960         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3961         ;;
3962     minix)
3963         ;;
3964     plan9)
3965         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3966                      -D_REENTRANT_SOURCE        \
3967                      -D_RESEARCH_SOURCE         \
3968                      -DFD_SETSIZE=96            \
3969                      -DHAVE_SOCK_OPTS
3970         add_compat strtod.o strtod=avpriv_strtod
3971         network_extralibs='-lbsd'
3972         exeobjs=compat/plan9/main.o
3973         disable ffserver
3974         cp_f='cp'
3975         ;;
3976     none)
3977         ;;
3978     *)
3979         die "Unknown OS '$target_os'."
3980         ;;
3981 esac
3982
3983 # determine libc flavour
3984
3985 probe_libc(){
3986     pfx=$1
3987     pfx_no_=${pfx%_}
3988     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3989     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3990         eval ${pfx}libc_type=uclibc
3991         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3992     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3993         eval ${pfx}libc_type=glibc
3994         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3995     # MinGW headers can be installed on Cygwin, so check for newlib first.
3996     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3997         eval ${pfx}libc_type=newlib
3998         add_${pfx}cppflags -U__STRICT_ANSI__
3999     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4000     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4001         eval ${pfx}libc_type=mingw64
4002         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4003             add_compat msvcrt/snprintf.o
4004             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4005         fi
4006         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4007         eval test \$${pfx_no_}cc_type = "gcc" &&
4008             add_${pfx}cppflags -D__printf__=__gnu_printf__
4009     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4010          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4011         eval ${pfx}libc_type=mingw32
4012         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4013             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4014             die "ERROR: MinGW32 runtime version must be >= 3.15."
4015         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4016         eval test \$${pfx_no_}cc_type = "gcc" &&
4017             add_${pfx}cppflags -D__printf__=__gnu_printf__
4018     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4019         eval ${pfx}libc_type=msvcrt
4020         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4021         # 0x601 by default unless something else is set by the user.
4022         # This can easily lead to us detecting functions only present
4023         # in such new versions and producing binaries requiring windows 7.0.
4024         # Therefore explicitly set the default to XP unless the user has
4025         # set something else on the command line.
4026         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4027             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4028     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4029         eval ${pfx}libc_type=klibc
4030     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4031         eval ${pfx}libc_type=bionic
4032     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4033         eval ${pfx}libc_type=solaris
4034         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4035     fi
4036 }
4037
4038 probe_libc
4039 test -n "$libc_type" && enable libc_$libc_type
4040 probe_libc host_
4041 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4042
4043 case $libc_type in
4044     bionic)
4045         add_compat strtod.o strtod=avpriv_strtod
4046         ;;
4047     msvcrt)
4048         add_compat strtod.o strtod=avpriv_strtod
4049         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4050                                      _snprintf=avpriv_snprintf  \
4051                                      vsnprintf=avpriv_vsnprintf
4052         ;;
4053 esac
4054
4055 # hacks for compiler/libc/os combinations
4056
4057 if enabled_all tms470 libc_glibc; then
4058     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4059     add_cppflags -D__USER_LABEL_PREFIX__=
4060     add_cppflags -D__builtin_memset=memset
4061     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4062     add_cflags   -pds=48    # incompatible redefinition of macro
4063 fi
4064
4065 if enabled_all ccc libc_glibc; then
4066     add_ldflags -Wl,-z,now  # calls to libots crash without this
4067 fi
4068
4069 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4070     add_cppflags '-I\$(SRC_PATH)/compat/float'
4071
4072 esc(){
4073     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4074 }
4075
4076 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4077
4078 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4079
4080 set_default $PATHS_LIST
4081 set_default nm
4082
4083 # we need to build at least one lib type
4084 if ! enabled_any static shared; then
4085     cat <<EOF
4086 At least one library type must be built.
4087 Specify --enable-static to build the static libraries or --enable-shared to
4088 build the shared libraries as well. To only build the shared libraries specify
4089 --disable-static in addition to --enable-shared.
4090 EOF
4091     exit 1;
4092 fi
4093
4094 # backward compatibility layer for incompatible_libav/fork_abi
4095 enabled incompatible_fork_abi  && enable incompatible_libav_abi
4096 enabled incompatible_libav_abi && enable incompatible_fork_abi
4097
4098 die_license_disabled() {
4099     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4100 }
4101
4102 die_license_disabled_gpl() {
4103     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4104 }
4105
4106 die_license_disabled gpl frei0r
4107 die_license_disabled gpl libcdio
4108 die_license_disabled gpl libutvideo
4109 die_license_disabled gpl libvidstab
4110 die_license_disabled gpl libx264
4111 die_license_disabled gpl libx265
4112 die_license_disabled gpl libxavs
4113 die_license_disabled gpl libxvid
4114 die_license_disabled gpl libzvbi
4115 die_license_disabled gpl x11grab
4116
4117 die_license_disabled nonfree libaacplus
4118 die_license_disabled nonfree libfaac
4119 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4120 enabled gpl && die_license_disabled_gpl nonfree openssl
4121
4122 die_license_disabled version3 libopencore_amrnb
4123 die_license_disabled version3 libopencore_amrwb
4124 die_license_disabled version3 libvo_aacenc
4125 die_license_disabled version3 libvo_amrwbenc
4126
4127 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4128
4129 disabled optimizations || check_cflags -fomit-frame-pointer
4130
4131 enable_weak_pic() {
4132     disabled pic && return
4133     enable pic
4134     add_cppflags -DPIC
4135     case "$target_os" in
4136     mingw*|cygwin*)
4137         ;;
4138     *)
4139         add_cflags -fPIC
4140         ;;
4141     esac
4142     add_asflags  -fPIC
4143 }
4144
4145 enabled pic && enable_weak_pic
4146
4147 check_cc <<EOF || die "Symbol mangling check failed."
4148 int ff_extern;
4149 EOF
4150 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4151 extern_prefix=${sym%%ff_extern*}
4152
4153 check_cc <<EOF && enable_weak inline_asm
4154 void foo(void) { __asm__ volatile ("" ::); }
4155 EOF
4156
4157 _restrict=
4158 for restrict_keyword in restrict __restrict__ __restrict; do
4159     check_cc <<EOF && _restrict=$restrict_keyword && break
4160 void foo(char * $restrict_keyword p);
4161 EOF
4162 done
4163
4164 check_cc <<EOF && enable pragma_deprecated
4165 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4166 EOF
4167
4168 check_cc <<EOF && enable attribute_packed
4169 struct { int x; } __attribute__((packed)) x;
4170 EOF
4171
4172 check_cc <<EOF && enable attribute_may_alias
4173 union { int x; } __attribute__((may_alias)) x;
4174 EOF
4175
4176 check_cc <<EOF || die "endian test failed"
4177 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4178 EOF
4179 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4180
4181 check_inline_asm inline_asm_labels '"1:\n"'
4182
4183 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4184
4185 if enabled aarch64; then
4186     # internal assembler in clang 3.3 does not support this instruction
4187     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4188     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4189
4190     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4191
4192 elif enabled alpha; then
4193
4194     check_cflags -mieee
4195
4196 elif enabled arm; then
4197
4198     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4199 float func(float a, float b){ return a+b; }
4200 EOF
4201
4202     enabled thumb && check_cflags -mthumb || check_cflags -marm
4203     nogas=die
4204
4205     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4206         enable vfp_args
4207     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4208         case "${cross_prefix:-$cc}" in
4209             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4210             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4211 __asm__ (".eabi_attribute 28, 1");
4212 int main(void) { return 0; }
4213 EOF
4214         esac
4215         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4216     fi
4217
4218     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4219     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4220     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4221     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4222     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4223     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4224
4225     [ $target_os = linux ] ||
4226         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4227             $ARCH_EXT_LIST_ARM
4228
4229     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4230
4231     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4232
4233 elif enabled mips; then
4234
4235     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4236     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4237      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4238     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4239      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4240     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4241      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4242     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4243      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4244
4245 elif enabled parisc; then
4246
4247     if enabled gcc; then
4248         case $($cc -dumpversion) in
4249             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4250         esac
4251     fi
4252
4253 elif enabled ppc; then
4254
4255     enable local_aligned_8 local_aligned_16
4256
4257     [ $cpu != e500 -a $cpu != e500v2 ] &&
4258      check_inline_asm dcbzl    '"dcbzl 0, %0" :: "r"(0)'
4259     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4260     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4261     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4262
4263     # AltiVec flags: The FSF version of GCC differs from the Apple version
4264     if enabled altivec; then
4265         if ! enabled_any pic ppc64; then
4266             nogas=warn
4267         fi
4268         check_cflags -maltivec -mabi=altivec &&
4269         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4270         check_cflags -faltivec
4271
4272         # check if our compiler supports Motorola AltiVec C API
4273         check_cc <<EOF || disable altivec
4274 $inc_altivec_h
4275 int main(void) {
4276     vector signed int v1 = (vector signed int) { 0 };
4277     vector signed int v2 = (vector signed int) { 1 };
4278     v1 = vec_add(v1, v2);
4279     return 0;
4280 }
4281 EOF
4282
4283         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4284     fi
4285
4286 elif enabled x86; then
4287
4288     check_builtin rdtsc    intrin.h   "__rdtsc()"
4289     check_builtin mm_empty mmintrin.h "_mm_empty()"
4290
4291     enable local_aligned_8 local_aligned_16
4292
4293     # check whether EBP is available on x86
4294     # As 'i' is stored on the stack, this program will crash
4295     # if the base pointer is used to access it because the
4296     # base pointer is cleared in the inline assembly code.
4297     check_exec_crash <<EOF && enable ebp_available
4298 volatile int i=0;
4299 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4300 return i;
4301 EOF
4302
4303     # check whether EBX is available on x86
4304     check_inline_asm ebx_available '""::"b"(0)' &&
4305         check_inline_asm ebx_available '"":::"%ebx"'
4306
4307     # check whether xmm clobbers are supported
4308     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4309
4310     check_inline_asm inline_asm_direct_symbol_refs '"movl test, %eax"'
4311
4312     # check whether binutils is new enough to compile SSSE3/MMXEXT
4313     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4314     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4315
4316     if ! disabled_any asm mmx yasm; then
4317         if check_cmd $yasmexe --version; then
4318             enabled x86_64 && yasm_extra="-m amd64"
4319             yasm_debug="-g dwarf2"
4320         elif check_cmd nasm -v; then
4321             yasmexe=nasm
4322             yasm_debug="-g -F dwarf"
4323             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4324         fi
4325
4326         YASMFLAGS="-f $objformat $yasm_extra"
4327         enabled pic               && append YASMFLAGS "-DPIC"
4328         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4329         case "$objformat" in
4330             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4331         esac
4332
4333         check_yasm "movbe ecx, [5]" && enable yasm ||
4334             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4335         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4336         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4337         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4338         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4339         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4340         check_yasm "CPU amdnop" || disable cpunop
4341     fi
4342
4343     case "$cpu" in
4344         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4345             disable fast_clz
4346         ;;
4347     esac
4348
4349 fi
4350
4351 if enabled asm; then
4352     as=${gas:=$as}
4353     check_as <<EOF && enable gnu_as || \
4354         $nogas "GNU assembler not found, install gas-preprocessor"
4355 .macro m n
4356 \n: .int 0
4357 .endm
4358 m x
4359 EOF
4360 fi
4361
4362 check_ldflags -Wl,--as-needed
4363
4364 if check_func dlopen; then
4365     ldl=
4366 elif check_func dlopen -ldl; then
4367     ldl=-ldl
4368 fi
4369
4370 if ! disabled network; then
4371     check_func getaddrinfo $network_extralibs
4372     check_func getservbyport $network_extralibs
4373     check_func inet_aton $network_extralibs
4374
4375     check_type netdb.h "struct addrinfo"
4376     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4377     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4378     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4379     check_type poll.h "struct pollfd"
4380     check_type netinet/sctp.h "struct sctp_event_subscribe"
4381     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4382     check_type netinet/in.h "struct sockaddr_in6"
4383     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4384     check_type "sys/types.h sys/socket.h" socklen_t
4385
4386     # Prefer arpa/inet.h over winsock2
4387     if check_header arpa/inet.h ; then
4388         check_func closesocket
4389     elif check_header winsock2.h ; then
4390         check_func_headers winsock2.h closesocket -lws2 &&
4391             network_extralibs="-lws2" ||
4392         { check_func_headers winsock2.h closesocket -lws2_32 &&
4393             network_extralibs="-lws2_32"; } || disable winsock2_h network
4394         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4395
4396         check_type ws2tcpip.h socklen_t
4397         check_type ws2tcpip.h "struct addrinfo"
4398         check_type ws2tcpip.h "struct group_source_req"
4399         check_type ws2tcpip.h "struct ip_mreq_source"
4400         check_type ws2tcpip.h "struct ipv6_mreq"
4401         check_type winsock2.h "struct pollfd"
4402         check_struct winsock2.h "struct sockaddr" sa_len
4403         check_type ws2tcpip.h "struct sockaddr_in6"
4404         check_type ws2tcpip.h "struct sockaddr_storage"
4405     else
4406         disable network
4407     fi
4408 fi
4409
4410 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4411 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4412 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4413 check_builtin sarestart signal.h "SA_RESTART"
4414 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4415
4416 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4417 check_func  ${malloc_prefix}memalign            && enable memalign
4418 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4419
4420 check_func  access
4421 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4422 check_func  fcntl
4423 check_func  fork
4424 check_func  gethrtime
4425 check_func  getopt
4426 check_func  getrusage
4427 check_func  gettimeofday
4428 check_func  isatty
4429 check_func  localtime_r
4430 check_func  mach_absolute_time
4431 check_func  mkstemp
4432 check_func  mmap
4433 check_func  mprotect
4434 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4435 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4436 check_func  sched_getaffinity
4437 check_func  setrlimit
4438 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4439 check_func  strerror_r
4440 check_func  sysconf
4441 check_func  sysctl
4442 check_func  usleep
4443
4444 check_func_headers conio.h kbhit
4445 check_func_headers io.h setmode
4446 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4447 check_func_headers stdlib.h getenv
4448
4449 check_func_headers windows.h GetProcessAffinityMask
4450 check_func_headers windows.h GetProcessTimes
4451 check_func_headers windows.h GetSystemTimeAsFileTime
4452 check_func_headers windows.h MapViewOfFile
4453 check_func_headers windows.h PeekNamedPipe
4454 check_func_headers windows.h SetConsoleTextAttribute
4455 check_func_headers windows.h Sleep
4456 check_func_headers windows.h VirtualAlloc
4457 check_func_headers glob.h glob
4458 enabled xlib &&
4459     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4460
4461 check_header cl/cl.h
4462 check_header direct.h
4463 check_header dlfcn.h
4464 check_header dxva.h
4465 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4466 check_header io.h
4467 check_header libcrystalhd/libcrystalhd_if.h
4468 check_header mach/mach_time.h
4469 check_header malloc.h
4470 check_header poll.h
4471 check_header sys/mman.h
4472 check_header sys/param.h
4473 check_header sys/resource.h
4474 check_header sys/select.h
4475 check_header sys/time.h
4476 check_header sys/un.h
4477 check_header termios.h
4478 check_header unistd.h
4479 check_header vdpau/vdpau.h
4480 check_header vdpau/vdpau_x11.h
4481 check_header VideoDecodeAcceleration/VDADecoder.h
4482 check_header windows.h
4483 check_header X11/extensions/XvMClib.h
4484 check_header asm/types.h
4485
4486 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4487 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4488 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4489
4490 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4491
4492 if ! disabled w32threads && ! enabled pthreads; then
4493     check_func_headers "windows.h process.h" _beginthreadex &&
4494         enable w32threads || disable w32threads
4495 fi
4496
4497 # check for some common methods of building with pthread support
4498 # do this before the optional library checks as some of them require pthreads
4499 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4500     enable pthreads
4501     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4502         add_cflags -pthread
4503         add_extralibs -pthread
4504     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4505         add_cflags -pthreads
4506         add_extralibs -pthreads
4507     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4508         add_extralibs -lpthreadGC2
4509     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4510         :
4511     elif ! check_func pthread_join && ! check_func pthread_create; then
4512         disable pthreads
4513     fi
4514     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4515 fi
4516
4517
4518 if enabled pthreads; then
4519   check_func pthread_cancel
4520 fi
4521
4522 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4523 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4524
4525 check_lib math.h sin -lm && LIBM="-lm"
4526 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4527
4528 atan2f_args=2
4529 ldexpf_args=2
4530 powf_args=2
4531
4532 for func in $MATH_FUNCS; do
4533     eval check_mathfunc $func \${${func}_args:-1}
4534 done
4535
4536 # these are off by default, so fail if requested and not available
4537 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4538                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4539                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4540 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4541 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4542 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4543 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4544 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4545 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4546 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4547 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4548 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4549 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4550                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4551                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4552 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4553 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4554 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4555 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"
4556 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4557 enabled libfreetype       && require_libfreetype
4558 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4559 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4560                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4561                                done || die "ERROR: libgsm not found"; }
4562 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4563 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4564 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4565 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4566 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4567 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4568 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4569 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4570                                check_lib openjpeg.h opj_version -lopenjpeg ||
4571                                die "ERROR: libopenjpeg not found"; }
4572 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4573 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4574 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4575 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4576 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4577 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4578 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4579 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4580 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4581 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4582     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4583     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4584 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4585 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4586                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4587                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4588 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4589 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4590 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4591 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4592 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4593 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4594 enabled libvpx            && {
4595     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4596                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4597     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 ||
4598                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4599     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4600     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_SVC" -lvpx || disable libvpx_vp9_encoder; } }
4601 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4602 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4603 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4604                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4605                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4606 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4607                              { check_cpp_condition x265.h "X265_BUILD >= 9" ||
4608                                die "ERROR: libx265 version must be >= 9."; }
4609 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4610 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4611 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4612 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4613 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4614                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4615                                die "ERROR: openal not found"; } &&
4616                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4617                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4618 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4619                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4620                                die "ERROR: opencl not found"; } &&
4621                              { ! enabled_any w32threads os2threads ||
4622                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4623                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4624                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4625                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4626 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4627                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4628                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4629                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4630                                die "ERROR: opengl not found."
4631                              }
4632 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4633                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4634                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4635                                die "ERROR: openssl not found"; }
4636
4637 if enabled gnutls; then
4638     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4639     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4640 fi
4641
4642 # libdc1394 check
4643 if enabled libdc1394; then
4644     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4645         enable libdc1394_2; } ||
4646     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4647         enable libdc1394_1; } ||
4648     die "ERROR: No version of libdc1394 found "
4649 fi
4650
4651 SDL_CONFIG="${cross_prefix}sdl-config"
4652 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4653     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4654     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4655     enable sdl
4656 else
4657   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4658     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4659     sdl_libs=$("${SDL_CONFIG}" --libs)
4660     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4661     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4662     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4663     enable sdl
4664   fi
4665 fi
4666 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4667
4668 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4669 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4670 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4671 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4672 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4673
4674 check_header linux/fb.h
4675 check_header linux/videodev.h
4676 check_header linux/videodev2.h
4677 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4678
4679 check_header sys/videoio.h
4680
4681 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4682 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4683 # w32api 3.12 had it defined wrong
4684 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4685
4686 check_type "dshow.h" IBaseFilter
4687
4688 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4689 { check_header dev/bktr/ioctl_meteor.h &&
4690   check_header dev/bktr/ioctl_bt848.h; } ||
4691 { check_header machine/ioctl_meteor.h &&
4692   check_header machine/ioctl_bt848.h; } ||
4693 { check_header dev/video/meteor/ioctl_meteor.h &&
4694   check_header dev/video/bktr/ioctl_bt848.h; } ||
4695 check_header dev/ic/bt8xx.h
4696
4697 check_header sndio.h
4698 if check_struct sys/soundcard.h audio_buf_info bytes; then
4699     enable_safe sys/soundcard.h
4700 else
4701     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4702     #include <sys/soundcard.h>
4703     audio_buf_info abc;
4704 EOF
4705 fi
4706 check_header soundcard.h
4707
4708 enabled_any alsa_indev alsa_outdev &&
4709     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4710
4711 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4712     check_func jack_port_get_latency_range -ljack
4713
4714 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4715
4716 if enabled libcdio; then
4717     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4718     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4719     die "ERROR: libcdio-paranoia not found"
4720 fi
4721
4722 enabled xlib &&
4723     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4724
4725 enabled x11grab                                           &&
4726 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4727 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4728 { enabled xlib || die "ERROR: Xlib not found"; }
4729
4730 enabled vaapi &&
4731     check_lib va/va.h vaInitialize -lva ||
4732     disable vaapi
4733
4734 enabled vdpau &&
4735     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4736     disable vdpau
4737
4738 enabled vdpau && enabled xlib &&
4739     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4740     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4741     enable vdpau_x11
4742
4743 # Funny iconv installations are not unusual, so check it after all flags have been set
4744 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4745
4746 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4747
4748 # add some useful compiler flags if supported
4749 check_cflags -Wdeclaration-after-statement
4750 check_cflags -Wall
4751 check_cflags -Wdisabled-optimization
4752 check_cflags -Wpointer-arith
4753 check_cflags -Wredundant-decls
4754 check_cflags -Wwrite-strings
4755 check_cflags -Wtype-limits
4756 check_cflags -Wundef
4757 check_cflags -Wmissing-prototypes
4758 check_cflags -Wno-pointer-to-int-cast
4759 check_cflags -Wstrict-prototypes
4760 enabled extra_warnings && check_cflags -Winline
4761
4762 check_disable_warning(){
4763     warning_flag=-W${1#-Wno-}
4764     test_cflags $warning_flag && add_cflags $1
4765 }
4766
4767 check_disable_warning -Wno-parentheses
4768 check_disable_warning -Wno-switch
4769 check_disable_warning -Wno-format-zero-length
4770 check_disable_warning -Wno-pointer-sign
4771
4772 # add some linker flags
4773 check_ldflags -Wl,--warn-common
4774 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4775 enabled rpath && add_ldflags -Wl,-rpath=$libdir
4776 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4777
4778 # add some strip flags
4779 # -wN '..@*' is more selective than -x, but not available everywhere.
4780 check_stripflags -wN \'..@*\' || check_stripflags -x
4781
4782 enabled neon_clobber_test &&
4783     check_ldflags -Wl,--wrap,avcodec_open2              \
4784                   -Wl,--wrap,avcodec_decode_audio4      \
4785                   -Wl,--wrap,avcodec_decode_video2      \
4786                   -Wl,--wrap,avcodec_decode_subtitle2   \
4787                   -Wl,--wrap,avcodec_encode_audio2      \
4788                   -Wl,--wrap,avcodec_encode_video2      \
4789                   -Wl,--wrap,avcodec_encode_subtitle    \
4790                   -Wl,--wrap,swr_convert                \
4791                   -Wl,--wrap,avresample_convert ||
4792     disable neon_clobber_test
4793
4794 enabled xmm_clobber_test &&
4795     check_ldflags -Wl,--wrap,avcodec_open2              \
4796                   -Wl,--wrap,avcodec_decode_audio4      \
4797                   -Wl,--wrap,avcodec_decode_video2      \
4798                   -Wl,--wrap,avcodec_decode_subtitle2   \
4799                   -Wl,--wrap,avcodec_encode_audio2      \
4800                   -Wl,--wrap,avcodec_encode_video       \
4801                   -Wl,--wrap,avcodec_encode_video2      \
4802                   -Wl,--wrap,avcodec_encode_subtitle    \
4803                   -Wl,--wrap,swr_convert                \
4804                   -Wl,--wrap,avresample_convert         \
4805                   -Wl,--wrap,sws_scale ||
4806     disable xmm_clobber_test
4807
4808 echo "X{};" > $TMPV
4809 if test_ldflags -Wl,--version-script,$TMPV; then
4810     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4811     check_cc <<EOF && enable symver_asm_label
4812 void ff_foo(void) __asm__ ("av_foo@VERSION");
4813 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4814 EOF
4815     check_cc <<EOF && enable symver_gnu_asm
4816 __asm__(".symver ff_foo,av_foo@VERSION");
4817 void ff_foo(void) {}
4818 EOF
4819 fi
4820
4821 if [ -z "$optflags" ]; then
4822     if enabled small; then
4823         optflags=$cflags_size
4824     elif enabled optimizations; then
4825         optflags=$cflags_speed
4826     else
4827         optflags=$cflags_noopt
4828     fi
4829 fi
4830
4831 check_optflags(){
4832     check_cflags "$@"
4833     enabled lto && check_ldflags "$@"
4834 }
4835
4836
4837 if enabled lto; then
4838     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4839     check_cflags  -flto
4840     check_ldflags -flto $cpuflags
4841 fi
4842
4843 check_optflags $optflags
4844 check_optflags -fno-math-errno
4845 check_optflags -fno-signed-zeros
4846
4847 enabled ftrapv && check_cflags -ftrapv
4848
4849 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4850 int x;
4851 EOF
4852
4853
4854 if enabled icc; then
4855     # Just warnings, no remarks
4856     check_cflags -w1
4857     # -wd: Disable following warnings
4858     # 144, 167, 556: -Wno-pointer-sign
4859     # 188: enumerated type mixed with another type
4860     # 1292: attribute "foo" ignored
4861     # 1419: external declaration in primary source file
4862     # 10006: ignoring unknown option -fno-signed-zeros
4863     # 10148: ignoring unknown option -Wno-parentheses
4864     # 10156: ignoring option '-W'; no argument required
4865     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4866     # 11030: Warning unknown option --as-needed
4867     # 10156: ignoring option '-export'; no argument required
4868     check_ldflags -wd10156,11030
4869     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4870     enable ebp_available
4871     if enabled x86_32; then
4872         icc_version=$($cc -dumpversion)
4873         test ${icc_version%%.*} -ge 11 &&
4874             check_cflags -falign-stack=maintain-16-byte ||
4875             disable aligned_stack
4876     fi
4877 elif enabled ccc; then
4878     # disable some annoying warnings
4879     add_cflags -msg_disable bitnotint
4880     add_cflags -msg_disable mixfuncvoid
4881     add_cflags -msg_disable nonstandcast
4882     add_cflags -msg_disable unsupieee
4883 elif enabled gcc; then
4884     check_optflags -fno-tree-vectorize
4885     check_cflags -Werror=implicit-function-declaration
4886     check_cflags -Werror=missing-prototypes
4887     check_cflags -Werror=return-type
4888     check_cflags -Werror=vla
4889     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4890 elif enabled llvm_gcc; then
4891     check_cflags -mllvm -stack-alignment=16
4892 elif enabled clang; then
4893     check_cflags -mllvm -stack-alignment=16
4894     check_cflags -Qunused-arguments
4895     check_cflags -Werror=implicit-function-declaration
4896     check_cflags -Werror=missing-prototypes
4897     check_cflags -Werror=return-type
4898 elif enabled cparser; then
4899     add_cflags -Wno-missing-variable-declarations
4900     add_cflags -Wno-empty-statement
4901 elif enabled armcc; then
4902     # 2523: use of inline assembler is deprecated
4903     add_cflags -W${armcc_opt},--diag_suppress=2523
4904     add_cflags -W${armcc_opt},--diag_suppress=1207
4905     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4906     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4907     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4908     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4909 elif enabled tms470; then
4910     add_cflags -pds=824 -pds=837
4911     disable inline_asm
4912 elif enabled pathscale; then
4913     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4914 elif enabled_any msvc icl; then
4915     enabled x86_32 && disable aligned_stack
4916     enabled_all x86_32 debug && add_cflags -Oy-
4917     enabled debug && add_ldflags -debug
4918     enable pragma_deprecated
4919     if enabled icl; then
4920         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4921         # (correctly) on icl 13.x.
4922         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4923             add_cflags -Qansi-alias
4924         # icl will pass the inline asm tests but inline asm is currently
4925         # not supported (build will fail)
4926         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4927         disable inline_asm
4928     fi
4929 fi
4930
4931 case $as_type in
4932     clang)
4933         add_asflags -Qunused-arguments
4934     ;;
4935 esac
4936
4937 case $ld_type in
4938     clang)
4939         check_ldflags -Qunused-arguments
4940     ;;
4941 esac
4942
4943 case $target_os in
4944     osf1)
4945         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4946     ;;
4947     plan9)
4948         add_cppflags -Dmain=plan9_main
4949     ;;
4950 esac
4951
4952 enable frame_thread_encoder
4953
4954 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4955
4956 check_deps $CONFIG_LIST       \
4957            $CONFIG_EXTRA      \
4958            $HAVE_LIST         \
4959            $ALL_COMPONENTS    \
4960
4961 enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
4962
4963
4964 if test $target_os = "haiku"; then
4965     disable memalign
4966     disable posix_memalign
4967 fi
4968
4969 ! enabled_any memalign posix_memalign aligned_malloc &&
4970     enabled_any $need_memalign && enable memalign_hack
4971
4972 # add_dep lib dep
4973 # -> enable ${lib}_deps_${dep}
4974 # -> add $dep to ${lib}_deps only once
4975 add_dep() {
4976     lib=$1
4977     dep=$2
4978     enabled "${lib}_deps_${dep}" && return 0
4979     enable  "${lib}_deps_${dep}"
4980     prepend "${lib}_deps" $dep
4981 }
4982
4983 # merge deps lib components
4984 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4985 merge_deps() {
4986     lib=$1
4987     shift
4988     for comp in $*; do
4989         enabled $comp || continue
4990         eval "dep=\"\$${comp}_deps\""
4991         for d in $dep; do
4992             add_dep $lib $d
4993         done
4994     done
4995 }
4996
4997 merge_deps libavfilter $FILTER_LIST
4998
4999 for thread in $THREADS_LIST; do
5000     if enabled $thread; then
5001         test -n "$thread_type" &&
5002             die "ERROR: Only one thread type must be selected." ||
5003             thread_type="$thread"
5004     fi
5005 done
5006
5007 echo "install prefix            $prefix"
5008 echo "source path               $source_path"
5009 echo "C compiler                $cc"
5010 echo "C library                 $libc_type"
5011 if test "$host_cc" != "$cc"; then
5012     echo "host C compiler           $host_cc"
5013     echo "host C library            $host_libc_type"
5014 fi
5015 echo "ARCH                      $arch ($cpu)"
5016 if test "$build_suffix" != ""; then
5017     echo "build suffix              $build_suffix"
5018 fi
5019 if test "$progs_suffix" != ""; then
5020     echo "progs suffix              $progs_suffix"
5021 fi
5022 if test "$extra_version" != ""; then
5023     echo "version string suffix     $extra_version"
5024 fi
5025 echo "big-endian                ${bigendian-no}"
5026 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5027 if enabled x86; then
5028     echo "${yasmexe}                      ${yasm-no}"
5029     echo "MMX enabled               ${mmx-no}"
5030     echo "MMXEXT enabled            ${mmxext-no}"
5031     echo "3DNow! enabled            ${amd3dnow-no}"
5032     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5033     echo "SSE enabled               ${sse-no}"
5034     echo "SSSE3 enabled             ${ssse3-no}"
5035     echo "AVX enabled               ${avx-no}"
5036     echo "XOP enabled               ${xop-no}"
5037     echo "FMA3 enabled              ${fma3-no}"
5038     echo "FMA4 enabled              ${fma4-no}"
5039     echo "i686 features enabled     ${i686-no}"
5040     echo "CMOV is fast              ${fast_cmov-no}"
5041     echo "EBX available             ${ebx_available-no}"
5042     echo "EBP available             ${ebp_available-no}"
5043 fi
5044 if enabled aarch64; then
5045     echo "NEON enabled              ${neon-no}"
5046     echo "VFP enabled               ${vfp-no}"
5047 fi
5048 if enabled arm; then
5049     echo "ARMv5TE enabled           ${armv5te-no}"
5050     echo "ARMv6 enabled             ${armv6-no}"
5051     echo "ARMv6T2 enabled           ${armv6t2-no}"
5052     echo "VFP enabled               ${vfp-no}"
5053     echo "NEON enabled              ${neon-no}"
5054     echo "THUMB enabled             ${thumb-no}"
5055 fi
5056 if enabled mips; then
5057     echo "MIPS FPU enabled          ${mipsfpu-no}"
5058     echo "MIPS32R2 enabled          ${mips32r2-no}"
5059     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5060     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5061 fi
5062 if enabled ppc; then
5063     echo "AltiVec enabled           ${altivec-no}"
5064     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5065     echo "dcbzl available           ${dcbzl-no}"
5066 fi
5067 echo "debug symbols             ${debug-no}"
5068 echo "strip symbols             ${stripping-no}"
5069 echo "optimize for size         ${small-no}"
5070 echo "optimizations             ${optimizations-no}"
5071 echo "static                    ${static-no}"
5072 echo "shared                    ${shared-no}"
5073 echo "postprocessing support    ${postproc-no}"
5074 echo "new filter support        ${avfilter-no}"
5075 echo "network support           ${network-no}"
5076 echo "threading support         ${thread_type-no}"
5077 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5078 echo "SDL support               ${sdl-no}"
5079 echo "opencl enabled            ${opencl-no}"
5080 echo "libzvbi enabled           ${libzvbi-no}"
5081 echo "texi2html enabled         ${texi2html-no}"
5082 echo "perl enabled              ${perl-no}"
5083 echo "pod2man enabled           ${pod2man-no}"
5084 echo "makeinfo enabled          ${makeinfo-no}"
5085 test -n "$random_seed" &&
5086     echo "random seed               ${random_seed}"
5087 echo
5088
5089 echo "External libraries:"
5090 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5091 echo
5092
5093 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5094     echo "Enabled ${type}s:"
5095     eval list=\$$(toupper $type)_LIST
5096     print_enabled '_*' $list | print_3_columns
5097     echo
5098 done
5099
5100 license="LGPL version 2.1 or later"
5101 if enabled nonfree; then
5102     license="nonfree and unredistributable"
5103 elif enabled gplv3; then
5104     license="GPL version 3 or later"
5105 elif enabled lgplv3; then
5106     license="LGPL version 3 or later"
5107 elif enabled gpl; then
5108     license="GPL version 2 or later"
5109 fi
5110
5111 echo "License: $license"
5112
5113 echo "Creating config.mak, config.h, and doc/config.texi..."
5114
5115 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5116
5117 enabled stripping || strip="echo skipping strip"
5118
5119 config_files="$TMPH config.mak doc/config.texi"
5120
5121 cat > config.mak <<EOF
5122 # Automatically generated by configure - do not modify!
5123 ifndef FFMPEG_CONFIG_MAK
5124 FFMPEG_CONFIG_MAK=1
5125 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5126 prefix=$prefix
5127 LIBDIR=\$(DESTDIR)$libdir
5128 SHLIBDIR=\$(DESTDIR)$shlibdir
5129 INCDIR=\$(DESTDIR)$incdir
5130 BINDIR=\$(DESTDIR)$bindir
5131 DATADIR=\$(DESTDIR)$datadir
5132 DOCDIR=\$(DESTDIR)$docdir
5133 MANDIR=\$(DESTDIR)$mandir
5134 SRC_PATH=$source_path
5135 ifndef MAIN_MAKEFILE
5136 SRC_PATH:=\$(SRC_PATH:.%=..%)
5137 endif
5138 CC_IDENT=$cc_ident
5139 ARCH=$arch
5140 CC=$cc
5141 CXX=$cxx
5142 AS=$as
5143 LD=$ld
5144 DEPCC=$dep_cc
5145 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5146 DEPAS=$as
5147 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5148 YASM=$yasmexe
5149 DEPYASM=$yasmexe
5150 AR=$ar
5151 ARFLAGS=$arflags
5152 AR_O=$ar_o
5153 RANLIB=$ranlib
5154 STRIP=$strip
5155 CP=cp -p
5156 LN_S=$ln_s
5157 CPPFLAGS=$CPPFLAGS
5158 CFLAGS=$CFLAGS
5159 CXXFLAGS=$CXXFLAGS
5160 ASFLAGS=$ASFLAGS
5161 AS_C=$AS_C
5162 AS_O=$AS_O
5163 CC_C=$CC_C
5164 CC_E=$CC_E
5165 CC_O=$CC_O
5166 CXX_C=$CXX_C
5167 CXX_O=$CXX_O
5168 LD_O=$LD_O
5169 LD_LIB=$LD_LIB
5170 LD_PATH=$LD_PATH
5171 DLLTOOL=$dlltool
5172 WINDRES=$windres
5173 DEPWINDRES=$dep_cc
5174 LDFLAGS=$LDFLAGS
5175 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5176 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5177 YASMFLAGS=$YASMFLAGS
5178 BUILDSUF=$build_suffix
5179 PROGSSUF=$progs_suffix
5180 FULLNAME=$FULLNAME
5181 LIBPREF=$LIBPREF
5182 LIBSUF=$LIBSUF
5183 LIBNAME=$LIBNAME
5184 SLIBPREF=$SLIBPREF
5185 SLIBSUF=$SLIBSUF
5186 EXESUF=$EXESUF
5187 EXTRA_VERSION=$extra_version
5188 CCDEP=$CCDEP
5189 CXXDEP=$CXXDEP
5190 CCDEP_FLAGS=$CCDEP_FLAGS
5191 ASDEP=$ASDEP
5192 ASDEP_FLAGS=$ASDEP_FLAGS
5193 CC_DEPFLAGS=$CC_DEPFLAGS
5194 AS_DEPFLAGS=$AS_DEPFLAGS
5195 HOSTCC=$host_cc
5196 HOSTLD=$host_ld
5197 HOSTCFLAGS=$host_cflags
5198 HOSTCPPFLAGS=$host_cppflags
5199 HOSTEXESUF=$HOSTEXESUF
5200 HOSTLDFLAGS=$host_ldflags
5201 HOSTLIBS=$host_libs
5202 DEPHOSTCC=$host_cc
5203 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5204 HOSTCCDEP=$HOSTCCDEP
5205 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5206 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5207 HOSTCC_C=$HOSTCC_C
5208 HOSTCC_O=$HOSTCC_O
5209 HOSTLD_O=$HOSTLD_O
5210 TARGET_EXEC=$target_exec $target_exec_args
5211 TARGET_PATH=$target_path
5212 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5213 CFLAGS-ffplay=$sdl_cflags
5214 ZLIB=$($ldflags_filter -lz)
5215 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5216 EXTRALIBS=$extralibs
5217 COMPAT_OBJS=$compat_objs
5218 EXEOBJS=$exeobjs
5219 INSTALL=$install
5220 LIBTARGET=${LIBTARGET}
5221 SLIBNAME=${SLIBNAME}
5222 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5223 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5224 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5225 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5226 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5227 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5228 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5229 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5230 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5231 NOREDZONE_FLAGS=$noredzone_flags
5232 EOF
5233
5234 get_version(){
5235     lcname=lib${1}
5236     name=$(toupper $lcname)
5237     file=$source_path/$lcname/version.h
5238     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5239     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5240     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5241     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5242     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5243     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5244 }
5245
5246 map 'get_version $v' $LIBRARY_LIST
5247
5248 print_program_libs(){
5249     eval "program_libs=\$${1}_libs"
5250     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5251 }
5252
5253 map 'print_program_libs $v' $PROGRAM_LIST
5254
5255 cat > $TMPH <<EOF
5256 /* Automatically generated by configure - do not modify! */
5257 #ifndef FFMPEG_CONFIG_H
5258 #define FFMPEG_CONFIG_H
5259 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5260 #define FFMPEG_LICENSE "$(c_escape $license)"
5261 #define CONFIG_THIS_YEAR 2014
5262 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5263 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5264 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5265 #define av_restrict $_restrict
5266 #define EXTERN_PREFIX "${extern_prefix}"
5267 #define EXTERN_ASM ${extern_prefix}
5268 #define BUILDSUF "$build_suffix"
5269 #define SLIBSUF "$SLIBSUF"
5270 #define HAVE_MMX2 HAVE_MMXEXT
5271 EOF
5272
5273 test -n "$assert_level" &&
5274     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5275
5276 test -n "$malloc_prefix" &&
5277     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5278
5279 if enabled yasm; then
5280     append config_files $TMPASM
5281     printf '' >$TMPASM
5282 fi
5283
5284 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5285
5286
5287 mkdir -p doc
5288 echo "@c auto-generated by configure" > doc/config.texi
5289
5290 print_config ARCH_   "$config_files" $ARCH_LIST
5291 print_config HAVE_   "$config_files" $HAVE_LIST
5292 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5293                                      $CONFIG_EXTRA      \
5294                                      $ALL_COMPONENTS    \
5295
5296 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5297 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5298
5299 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5300 cp_if_changed $TMPH config.h
5301 touch .config
5302
5303 enabled yasm && cp_if_changed $TMPASM config.asm
5304
5305 cat > $TMPH <<EOF
5306 /* Generated by ffconf */
5307 #ifndef AVUTIL_AVCONFIG_H
5308 #define AVUTIL_AVCONFIG_H
5309 EOF
5310
5311 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5312
5313 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5314
5315 cp_if_changed $TMPH libavutil/avconfig.h
5316
5317 if test -n "$WARNINGS"; then
5318     printf "\n$WARNINGS"
5319     enabled fatal_warnings && exit 1
5320 fi
5321
5322 # build pkg-config files
5323
5324 pkgconfig_generate(){
5325     name=$1
5326     shortname=${name#lib}${build_suffix}
5327     comment=$2
5328     version=$3
5329     libs=$4
5330     requires=$5
5331     enabled ${name#lib} || return 0
5332     mkdir -p $name
5333     cat <<EOF > $name/$name${build_suffix}.pc
5334 prefix=$prefix
5335 exec_prefix=\${prefix}
5336 libdir=$libdir
5337 includedir=$incdir
5338
5339 Name: $name
5340 Description: $comment
5341 Version: $version
5342 Requires: $(enabled shared || echo $requires)
5343 Requires.private: $(enabled shared && echo $requires)
5344 Conflicts:
5345 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5346 Libs.private: $(enabled shared && echo $libs)
5347 Cflags: -I\${includedir}
5348 EOF
5349
5350 mkdir -p doc/examples/pc-uninstalled
5351 includedir=${source_path}
5352 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5353     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5354 prefix=
5355 exec_prefix=
5356 libdir=\${pcfiledir}/../../../$name
5357 includedir=${includedir}
5358
5359 Name: $name
5360 Description: $comment
5361 Version: $version
5362 Requires: $requires
5363 Conflicts:
5364 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5365 Cflags: -I\${includedir}
5366 EOF
5367 }
5368
5369 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5370 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5371 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5372 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5373 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5374 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5375 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5376 lavfi_libs=${lavfi_libs%, }
5377
5378 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5379 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5380
5381 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5382 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5383 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5384 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5385 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5386 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5387 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5388 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5389 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"