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   --disable-vda            disable VDA code [autodetect]
 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     cabac
1756     dsputil
1757     exif
1758     frame_thread_encoder
1759     gcrypt
1760     golomb
1761     gplv3
1762     h263dsp
1763     h264chroma
1764     h264dsp
1765     h264pred
1766     h264qpel
1767     hpeldsp
1768     huffman
1769     intrax8
1770     lgplv3
1771     llviddsp
1772     lpc
1773     mpegaudio
1774     mpegaudiodsp
1775     mpegvideo
1776     mpegvideoenc
1777     nettle
1778     rangecoder
1779     riffdec
1780     riffenc
1781     rtpdec
1782     rtpenc_chain
1783     sinewin
1784     tpeldsp
1785     videodsp
1786     vp3dsp
1787 "
1788
1789 CMDLINE_SELECT="
1790     $ARCH_EXT_LIST
1791     $CONFIG_LIST
1792     $HAVE_LIST_CMDLINE
1793     $THREADS_LIST
1794     asm
1795     cross_compile
1796     debug
1797     extra_warnings
1798     logging
1799     lto
1800     optimizations
1801     rpath
1802     stripping
1803 "
1804
1805 PATHS_LIST="
1806     bindir
1807     datadir
1808     docdir
1809     incdir
1810     libdir
1811     mandir
1812     prefix
1813     shlibdir
1814 "
1815
1816 CMDLINE_SET="
1817     $PATHS_LIST
1818     ar
1819     arch
1820     as
1821     assert_level
1822     build_suffix
1823     cc
1824     cpu
1825     cross_prefix
1826     cxx
1827     dep_cc
1828     extra_version
1829     host_cc
1830     host_cflags
1831     host_ld
1832     host_ldflags
1833     host_libs
1834     host_os
1835     install
1836     ld
1837     logfile
1838     malloc_prefix
1839     nm
1840     optflags
1841     pkg_config
1842     pkg_config_flags
1843     progs_suffix
1844     random_seed
1845     samples
1846     strip
1847     sysinclude
1848     sysroot
1849     target_exec
1850     target_os
1851     target_path
1852     target_samples
1853     tempprefix
1854     toolchain
1855     valgrind
1856     yasmexe
1857 "
1858
1859 CMDLINE_APPEND="
1860     extra_cflags
1861     extra_cxxflags
1862     host_cppflags
1863 "
1864
1865 # code dependency declarations
1866
1867 # architecture extensions
1868
1869 armv5te_deps="arm"
1870 armv6_deps="arm"
1871 armv6t2_deps="arm"
1872 neon_deps_any="aarch64 arm"
1873 vfp_deps_any="aarch64 arm"
1874 vfpv3_deps="vfp"
1875
1876 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1877
1878 mipsfpu_deps="mips"
1879 mips32r2_deps="mips"
1880 mipsdspr1_deps="mips"
1881 mipsdspr2_deps="mips"
1882
1883 altivec_deps="ppc"
1884 ppc4xx_deps="ppc"
1885
1886 cpunop_deps="i686"
1887 x86_64_select="i686"
1888 x86_64_suggest="fast_cmov"
1889
1890 amd3dnow_deps="mmx"
1891 amd3dnowext_deps="amd3dnow"
1892 i686_deps="x86"
1893 mmx_deps="x86"
1894 mmxext_deps="mmx"
1895 sse_deps="mmxext"
1896 sse2_deps="sse"
1897 sse3_deps="sse2"
1898 ssse3_deps="sse3"
1899 sse4_deps="ssse3"
1900 sse42_deps="sse4"
1901 avx_deps="sse42"
1902 xop_deps="avx"
1903 fma3_deps="avx"
1904 fma4_deps="avx"
1905 avx2_deps="avx"
1906
1907 mmx_external_deps="yasm"
1908 mmx_inline_deps="inline_asm"
1909 mmx_suggest="mmx_external mmx_inline"
1910
1911 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1912     eval dep=\$${ext}_deps
1913     eval ${ext}_external_deps='"${dep}_external"'
1914     eval ${ext}_inline_deps='"${dep}_inline"'
1915     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1916 done
1917
1918 aligned_stack_if_any="aarch64 ppc x86"
1919 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1920 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1921 fast_unaligned_if_any="aarch64 ppc x86"
1922
1923 need_memalign="altivec neon sse"
1924
1925 # system capabilities
1926 log2_deps="!libc_msvcrt"
1927
1928 symver_if_any="symver_asm_label symver_gnu_asm"
1929
1930 # threading support
1931 atomics_gcc_if="sync_val_compare_and_swap"
1932 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1933 atomics_win32_if="MemoryBarrier"
1934 atomics_native_if_any="$ATOMICS_LIST"
1935 w32threads_deps="atomics_native"
1936 threads_if_any="$THREADS_LIST"
1937
1938 # subsystems
1939 dct_select="rdft"
1940 error_resilience_select="dsputil"
1941 frame_thread_encoder_deps="encoders threads"
1942 mdct_select="fft"
1943 rdft_select="fft"
1944 mpegaudio_select="mpegaudiodsp"
1945 mpegaudiodsp_select="dct"
1946 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1947 mpegvideoenc_select="dsputil mpegvideo"
1948
1949 # decoders / encoders
1950 aac_decoder_select="mdct sinewin"
1951 aac_encoder_select="audio_frame_queue mdct sinewin"
1952 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1953 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1954 ac3_encoder_select="mdct ac3dsp dsputil"
1955 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1956 aic_decoder_select="dsputil golomb"
1957 alac_encoder_select="lpc"
1958 als_decoder_select="dsputil"
1959 amrnb_decoder_select="lsp"
1960 amrwb_decoder_select="lsp"
1961 amv_decoder_select="sp5x_decoder exif"
1962 amv_encoder_select="aandcttables"
1963 ape_decoder_select="dsputil"
1964 asv1_decoder_select="dsputil"
1965 asv1_encoder_select="dsputil"
1966 asv2_decoder_select="dsputil"
1967 asv2_encoder_select="dsputil"
1968 atrac1_decoder_select="mdct sinewin"
1969 atrac3_decoder_select="mdct"
1970 atrac3p_decoder_select="mdct sinewin"
1971 avrn_decoder_select="exif"
1972 bink_decoder_select="dsputil hpeldsp"
1973 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1974 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1975 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1976 cllc_decoder_select="dsputil"
1977 comfortnoise_encoder_select="lpc"
1978 cook_decoder_select="dsputil mdct sinewin"
1979 cscd_decoder_select="lzo"
1980 cscd_decoder_suggest="zlib"
1981 dca_decoder_select="mdct"
1982 dirac_decoder_select="dsputil dwt golomb videodsp"
1983 dnxhd_decoder_select="dsputil"
1984 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1985 dvvideo_decoder_select="dsputil"
1986 dvvideo_encoder_select="dsputil"
1987 dxa_decoder_select="zlib"
1988 eac3_decoder_select="ac3_decoder"
1989 eac3_encoder_select="ac3_encoder"
1990 eamad_decoder_select="aandcttables dsputil mpegvideo"
1991 eatgq_decoder_select="aandcttables"
1992 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
1993 exr_decoder_select="zlib"
1994 ffv1_decoder_select="golomb rangecoder"
1995 ffv1_encoder_select="rangecoder"
1996 ffvhuff_decoder_select="huffyuv_decoder"
1997 ffvhuff_encoder_select="huffyuv_encoder"
1998 fic_decoder_select="dsputil golomb"
1999 flac_decoder_select="golomb"
2000 flac_encoder_select="dsputil golomb lpc"
2001 flashsv_decoder_select="zlib"
2002 flashsv_encoder_select="zlib"
2003 flashsv2_encoder_select="zlib"
2004 flashsv2_decoder_select="zlib"
2005 flv_decoder_select="h263_decoder"
2006 flv_encoder_select="h263_encoder"
2007 fourxm_decoder_select="dsputil"
2008 fraps_decoder_select="dsputil huffman"
2009 g2m_decoder_select="dsputil zlib"
2010 g729_decoder_select="dsputil"
2011 h261_decoder_select="error_resilience mpegvideo"
2012 h261_encoder_select="aandcttables mpegvideoenc"
2013 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
2014 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2015 h263i_decoder_select="h263_decoder"
2016 h263p_encoder_select="h263_encoder"
2017 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2018 h264_decoder_suggest="error_resilience"
2019 hevc_decoder_select="cabac dsputil golomb videodsp"
2020 huffyuv_decoder_select="dsputil llviddsp"
2021 huffyuv_encoder_select="dsputil huffman llviddsp"
2022 iac_decoder_select="imc_decoder"
2023 imc_decoder_select="dsputil fft mdct sinewin"
2024 indeo3_decoder_select="hpeldsp"
2025 interplay_video_decoder_select="hpeldsp"
2026 jpegls_decoder_select="golomb mjpeg_decoder"
2027 jpegls_encoder_select="golomb"
2028 jv_decoder_select="dsputil"
2029 lagarith_decoder_select="dsputil"
2030 ljpeg_encoder_select="aandcttables mpegvideoenc"
2031 loco_decoder_select="golomb"
2032 mdec_decoder_select="dsputil error_resilience mpegvideo"
2033 metasound_decoder_select="lsp mdct sinewin"
2034 mimic_decoder_select="dsputil hpeldsp"
2035 mjpeg_decoder_select="dsputil hpeldsp exif"
2036 mjpeg_encoder_select="aandcttables mpegvideoenc"
2037 mjpegb_decoder_select="mjpeg_decoder"
2038 mlp_decoder_select="mlp_parser"
2039 motionpixels_decoder_select="dsputil"
2040 mp1_decoder_select="mpegaudio"
2041 mp1float_decoder_select="mpegaudio"
2042 mp2_decoder_select="mpegaudio"
2043 mp2float_decoder_select="mpegaudio"
2044 mp3_decoder_select="mpegaudio"
2045 mp3adu_decoder_select="mpegaudio"
2046 mp3adufloat_decoder_select="mpegaudio"
2047 mp3float_decoder_select="mpegaudio"
2048 mp3on4_decoder_select="mpegaudio"
2049 mp3on4float_decoder_select="mpegaudio"
2050 mpc7_decoder_select="dsputil mpegaudiodsp"
2051 mpc8_decoder_select="mpegaudiodsp"
2052 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2053 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2054 mpeg1video_decoder_select="error_resilience mpegvideo"
2055 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2056 mpeg2video_decoder_select="error_resilience mpegvideo"
2057 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2058 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2059 mpeg4_encoder_select="h263_encoder"
2060 msmpeg4v1_decoder_select="h263_decoder"
2061 msmpeg4v2_decoder_select="h263_decoder"
2062 msmpeg4v2_encoder_select="h263_encoder"
2063 msmpeg4v3_decoder_select="h263_decoder"
2064 msmpeg4v3_encoder_select="h263_encoder"
2065 mss2_decoder_select="error_resilience vc1_decoder"
2066 mxpeg_decoder_select="mjpeg_decoder"
2067 nellymoser_decoder_select="mdct sinewin"
2068 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2069 nuv_decoder_select="dsputil lzo"
2070 png_decoder_select="zlib"
2071 png_encoder_select="dsputil zlib"
2072 prores_decoder_select="dsputil"
2073 prores_encoder_select="dsputil"
2074 qcelp_decoder_select="lsp"
2075 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2076 ra_144_encoder_select="audio_frame_queue lpc"
2077 ralf_decoder_select="golomb"
2078 rtjpeg_decoder_select="dsputil"
2079 rv10_decoder_select="error_resilience h263_decoder h263dsp"
2080 rv10_encoder_select="h263_encoder"
2081 rv20_decoder_select="error_resilience h263_decoder h263dsp"
2082 rv20_encoder_select="h263_encoder"
2083 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2084 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2085 shorten_decoder_select="golomb"
2086 sipr_decoder_select="lsp"
2087 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
2088 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
2089 sonic_decoder_select="golomb rangecoder"
2090 sonic_encoder_select="golomb rangecoder"
2091 sonic_ls_encoder_select="golomb"
2092 sp5x_decoder_select="mjpeg_decoder"
2093 svq1_decoder_select="hpeldsp"
2094 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2095 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2096 svq3_decoder_suggest="zlib"
2097 tak_decoder_select="dsputil"
2098 theora_decoder_select="vp3_decoder"
2099 thp_decoder_select="mjpeg_decoder"
2100 tiff_decoder_suggest="zlib"
2101 tiff_encoder_suggest="zlib"
2102 truehd_decoder_select="mlp_parser"
2103 truemotion2_decoder_select="dsputil"
2104 truespeech_decoder_select="dsputil"
2105 tscc_decoder_select="zlib"
2106 twinvq_decoder_select="mdct lsp sinewin"
2107 utvideo_decoder_select="dsputil"
2108 utvideo_encoder_select="dsputil huffman"
2109 vble_decoder_select="dsputil"
2110 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
2111 vc1image_decoder_select="vc1_decoder"
2112 vorbis_decoder_select="mdct"
2113 vorbis_encoder_select="mdct"
2114 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2115 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2116 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2117 vp6a_decoder_select="vp6_decoder"
2118 vp6f_decoder_select="vp6_decoder"
2119 vp7_decoder_select="h264pred videodsp"
2120 vp8_decoder_select="h264pred videodsp"
2121 vp9_decoder_select="videodsp"
2122 webp_decoder_select="vp8_decoder"
2123 wmapro_decoder_select="mdct sinewin"
2124 wmav1_decoder_select="mdct sinewin"
2125 wmav1_encoder_select="mdct sinewin"
2126 wmav2_decoder_select="mdct sinewin"
2127 wmav2_encoder_select="mdct sinewin"
2128 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2129 wmv1_decoder_select="h263_decoder"
2130 wmv1_encoder_select="h263_encoder"
2131 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2132 wmv2_encoder_select="h263_encoder"
2133 wmv3_decoder_select="vc1_decoder"
2134 wmv3image_decoder_select="wmv3_decoder"
2135 zerocodec_decoder_select="zlib"
2136 zlib_decoder_select="zlib"
2137 zlib_encoder_select="zlib"
2138 zmbv_decoder_select="zlib"
2139 zmbv_encoder_select="zlib"
2140
2141 # hardware accelerators
2142 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2143 dxva2_deps="dxva2api_h"
2144 vaapi_deps="va_va_h"
2145 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2146 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2147 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2148 xvmc_deps="X11_extensions_XvMClib_h"
2149
2150 h263_vaapi_hwaccel_deps="vaapi"
2151 h263_vaapi_hwaccel_select="h263_decoder"
2152 h263_vdpau_hwaccel_deps="vdpau"
2153 h263_vdpau_hwaccel_select="h263_decoder"
2154 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2155 h264_dxva2_hwaccel_deps="dxva2"
2156 h264_dxva2_hwaccel_select="h264_decoder"
2157 h264_vaapi_hwaccel_deps="vaapi"
2158 h264_vaapi_hwaccel_select="h264_decoder"
2159 h264_vda_decoder_deps="vda"
2160 h264_vda_decoder_select="h264_decoder"
2161 h264_vda_hwaccel_deps="vda"
2162 h264_vda_hwaccel_select="h264_decoder"
2163 h264_vdpau_decoder_deps="vdpau"
2164 h264_vdpau_decoder_select="h264_decoder"
2165 h264_vdpau_hwaccel_deps="vdpau"
2166 h264_vdpau_hwaccel_select="h264_decoder"
2167 mpeg_vdpau_decoder_deps="vdpau"
2168 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2169 mpeg_xvmc_hwaccel_deps="xvmc"
2170 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2171 mpeg1_vdpau_decoder_deps="vdpau"
2172 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2173 mpeg1_vdpau_hwaccel_deps="vdpau"
2174 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2175 mpeg1_xvmc_hwaccel_deps="xvmc"
2176 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2177 mpeg2_crystalhd_decoder_select="crystalhd"
2178 mpeg2_dxva2_hwaccel_deps="dxva2"
2179 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2180 mpeg2_vaapi_hwaccel_deps="vaapi"
2181 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2182 mpeg2_vdpau_hwaccel_deps="vdpau"
2183 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2184 mpeg2_xvmc_hwaccel_deps="xvmc"
2185 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2186 mpeg4_crystalhd_decoder_select="crystalhd"
2187 mpeg4_vaapi_hwaccel_deps="vaapi"
2188 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2189 mpeg4_vdpau_decoder_deps="vdpau"
2190 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2191 mpeg4_vdpau_hwaccel_deps="vdpau"
2192 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2193 msmpeg4_crystalhd_decoder_select="crystalhd"
2194 vc1_crystalhd_decoder_select="crystalhd"
2195 vc1_dxva2_hwaccel_deps="dxva2"
2196 vc1_dxva2_hwaccel_select="vc1_decoder"
2197 vc1_vaapi_hwaccel_deps="vaapi"
2198 vc1_vaapi_hwaccel_select="vc1_decoder"
2199 vc1_vdpau_decoder_deps="vdpau"
2200 vc1_vdpau_decoder_select="vc1_decoder"
2201 vc1_vdpau_hwaccel_deps="vdpau"
2202 vc1_vdpau_hwaccel_select="vc1_decoder"
2203 wmv3_crystalhd_decoder_select="crystalhd"
2204 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2205 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2206 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2207 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2208
2209 # parsers
2210 h264_parser_select="h264_decoder"
2211 hevc_parser_select="hevc_decoder"
2212 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
2213 mpegvideo_parser_select="error_resilience mpegvideo"
2214 vc1_parser_select="mpegvideo"
2215
2216 # external libraries
2217 libaacplus_encoder_deps="libaacplus"
2218 libcelt_decoder_deps="libcelt"
2219 libfaac_encoder_deps="libfaac"
2220 libfaac_encoder_select="audio_frame_queue"
2221 libfdk_aac_decoder_deps="libfdk_aac"
2222 libfdk_aac_encoder_deps="libfdk_aac"
2223 libfdk_aac_encoder_select="audio_frame_queue"
2224 libgme_demuxer_deps="libgme"
2225 libgsm_decoder_deps="libgsm"
2226 libgsm_encoder_deps="libgsm"
2227 libgsm_ms_decoder_deps="libgsm"
2228 libgsm_ms_encoder_deps="libgsm"
2229 libilbc_decoder_deps="libilbc"
2230 libilbc_encoder_deps="libilbc"
2231 libmodplug_demuxer_deps="libmodplug"
2232 libmp3lame_encoder_deps="libmp3lame"
2233 libmp3lame_encoder_select="audio_frame_queue"
2234 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2235 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2236 libopencore_amrnb_encoder_select="audio_frame_queue"
2237 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2238 libopenjpeg_decoder_deps="libopenjpeg"
2239 libopenjpeg_encoder_deps="libopenjpeg"
2240 libopus_decoder_deps="libopus"
2241 libopus_encoder_deps="libopus"
2242 libopus_encoder_select="audio_frame_queue"
2243 libquvi_demuxer_deps="libquvi"
2244 libschroedinger_decoder_deps="libschroedinger"
2245 libschroedinger_encoder_deps="libschroedinger"
2246 libshine_encoder_deps="libshine"
2247 libshine_encoder_select="audio_frame_queue"
2248 libspeex_decoder_deps="libspeex"
2249 libspeex_encoder_deps="libspeex"
2250 libspeex_encoder_select="audio_frame_queue"
2251 libstagefright_h264_decoder_deps="libstagefright_h264"
2252 libtheora_encoder_deps="libtheora"
2253 libtwolame_encoder_deps="libtwolame"
2254 libvo_aacenc_encoder_deps="libvo_aacenc"
2255 libvo_aacenc_encoder_select="audio_frame_queue"
2256 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2257 libvorbis_decoder_deps="libvorbis"
2258 libvorbis_encoder_deps="libvorbis"
2259 libvorbis_encoder_select="audio_frame_queue"
2260 libvpx_vp8_decoder_deps="libvpx"
2261 libvpx_vp8_encoder_deps="libvpx"
2262 libvpx_vp9_decoder_deps="libvpx"
2263 libvpx_vp9_encoder_deps="libvpx"
2264 libwavpack_encoder_deps="libwavpack"
2265 libwebp_encoder_deps="libwebp"
2266 libx264_encoder_deps="libx264"
2267 libx264rgb_encoder_deps="libx264"
2268 libx265_encoder_deps="libx265"
2269 libxavs_encoder_deps="libxavs"
2270 libxvid_encoder_deps="libxvid"
2271 libutvideo_decoder_deps="libutvideo"
2272 libutvideo_encoder_deps="libutvideo"
2273 libzvbi_teletext_decoder_deps="libzvbi"
2274
2275 # demuxers / muxers
2276 ac3_demuxer_select="ac3_parser"
2277 asf_demuxer_select="riffdec"
2278 asf_muxer_select="riffenc"
2279 asf_stream_muxer_select="asf_muxer"
2280 avi_demuxer_select="riffdec"
2281 avi_muxer_select="riffenc"
2282 avisynth_demuxer_deps="avisynth"
2283 avisynth_demuxer_select="riffdec"
2284 caf_demuxer_select="riffdec"
2285 dirac_demuxer_select="dirac_parser"
2286 dts_demuxer_select="dca_parser"
2287 dtshd_demuxer_select="dca_parser"
2288 dxa_demuxer_select="riffdec"
2289 eac3_demuxer_select="ac3_parser"
2290 f4v_muxer_select="mov_muxer"
2291 flac_demuxer_select="flac_parser"
2292 hds_muxer_select="flv_muxer"
2293 hls_muxer_select="mpegts_muxer"
2294 ipod_muxer_select="mov_muxer"
2295 ismv_muxer_select="mov_muxer"
2296 libnut_demuxer_deps="libnut"
2297 libnut_muxer_deps="libnut"
2298 matroska_audio_muxer_select="matroska_muxer"
2299 matroska_demuxer_select="riffdec"
2300 matroska_demuxer_suggest="bzlib lzo zlib"
2301 matroska_muxer_select="riffenc"
2302 mmf_muxer_select="riffenc"
2303 mov_demuxer_select="riffdec"
2304 mov_demuxer_suggest="zlib"
2305 mov_muxer_select="riffenc rtpenc_chain"
2306 mp3_demuxer_select="mpegaudio_parser"
2307 mp4_muxer_select="mov_muxer"
2308 mpegts_muxer_select="adts_muxer latm_muxer"
2309 mpegtsraw_demuxer_select="mpegts_demuxer"
2310 mxf_d10_muxer_select="mxf_muxer"
2311 nut_muxer_select="riffenc"
2312 nuv_demuxer_select="riffdec"
2313 ogg_demuxer_select="golomb"
2314 psp_muxer_select="mov_muxer"
2315 rtp_demuxer_select="sdp_demuxer"
2316 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2317 rtsp_demuxer_select="http_protocol rtpdec"
2318 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2319 sap_demuxer_select="sdp_demuxer"
2320 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2321 sdp_demuxer_select="rtpdec"
2322 smoothstreaming_muxer_select="ismv_muxer"
2323 spdif_muxer_select="aac_parser"
2324 tak_demuxer_select="tak_parser"
2325 tg2_muxer_select="mov_muxer"
2326 tgp_muxer_select="mov_muxer"
2327 vobsub_demuxer_select="mpegps_demuxer"
2328 w64_demuxer_select="wav_demuxer"
2329 w64_muxer_select="wav_muxer"
2330 wav_demuxer_select="riffdec"
2331 wav_muxer_select="riffenc"
2332 webm_muxer_select="riffenc"
2333 wtv_demuxer_select="riffdec"
2334 wtv_muxer_select="riffenc"
2335 xmv_demuxer_select="riffdec"
2336 xwma_demuxer_select="riffdec"
2337
2338 # indevs / outdevs
2339 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2340 alsa_outdev_deps="alsa_asoundlib_h"
2341 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2342 caca_outdev_deps="libcaca"
2343 decklink_outdev_deps="decklink pthreads"
2344 decklink_outdev_extralibs="-lstdc++"
2345 dshow_indev_deps="IBaseFilter"
2346 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2347 dv1394_indev_deps="dv1394"
2348 dv1394_indev_select="dv_demuxer"
2349 fbdev_indev_deps="linux_fb_h"
2350 fbdev_outdev_deps="linux_fb_h"
2351 iec61883_indev_deps="libiec61883"
2352 jack_indev_deps="jack_jack_h sem_timedwait"
2353 lavfi_indev_deps="avfilter"
2354 libcdio_indev_deps="libcdio"
2355 libdc1394_indev_deps="libdc1394"
2356 libv4l2_indev_deps="libv4l2"
2357 openal_indev_deps="openal"
2358 opengl_outdev_deps="opengl"
2359 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2360 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2361 pulse_indev_deps="libpulse"
2362 pulse_outdev_deps="libpulse"
2363 sdl_outdev_deps="sdl"
2364 sndio_indev_deps="sndio_h"
2365 sndio_outdev_deps="sndio_h"
2366 v4l_indev_deps="linux_videodev_h"
2367 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2368 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2369 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2370 vfwcap_indev_extralibs="-lavicap32"
2371 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2372 xv_outdev_extralibs="-lXv -lX11 -lXext"
2373 x11grab_indev_deps="x11grab"
2374
2375 # protocols
2376 bluray_protocol_deps="libbluray"
2377 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2378 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2379 ffrtmpcrypt_protocol_select="tcp_protocol"
2380 ffrtmphttp_protocol_deps="!librtmp_protocol"
2381 ffrtmphttp_protocol_select="http_protocol"
2382 ftp_protocol_select="tcp_protocol"
2383 gopher_protocol_select="network"
2384 http_protocol_select="tcp_protocol"
2385 httpproxy_protocol_select="tcp_protocol"
2386 https_protocol_select="tls_protocol"
2387 librtmp_protocol_deps="librtmp"
2388 librtmpe_protocol_deps="librtmp"
2389 librtmps_protocol_deps="librtmp"
2390 librtmpt_protocol_deps="librtmp"
2391 librtmpte_protocol_deps="librtmp"
2392 libssh_protocol_deps="libssh"
2393 mmsh_protocol_select="http_protocol"
2394 mmst_protocol_select="network"
2395 rtmp_protocol_deps="!librtmp_protocol"
2396 rtmp_protocol_select="tcp_protocol"
2397 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2398 rtmps_protocol_deps="!librtmp_protocol"
2399 rtmps_protocol_select="tls_protocol"
2400 rtmpt_protocol_select="ffrtmphttp_protocol"
2401 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2402 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2403 rtp_protocol_select="udp_protocol"
2404 sctp_protocol_deps="struct_sctp_event_subscribe"
2405 sctp_protocol_select="network"
2406 srtp_protocol_select="rtp_protocol"
2407 tcp_protocol_select="network"
2408 tls_protocol_deps_any="openssl gnutls"
2409 tls_protocol_select="tcp_protocol"
2410 udp_protocol_select="network"
2411 unix_protocol_deps="sys_un_h"
2412 unix_protocol_select="network"
2413
2414 # filters
2415 aconvert_filter_deps="swresample"
2416 amovie_filter_deps="avcodec avformat"
2417 aresample_filter_deps="swresample"
2418 ass_filter_deps="libass"
2419 asyncts_filter_deps="avresample"
2420 atempo_filter_deps="avcodec"
2421 atempo_filter_select="rdft"
2422 azmq_filter_deps="libzmq"
2423 blackframe_filter_deps="gpl"
2424 boxblur_filter_deps="gpl"
2425 colormatrix_filter_deps="gpl"
2426 cropdetect_filter_deps="gpl"
2427 dctdnoiz_filter_deps="avcodec"
2428 dctdnoiz_filter_select="dct"
2429 delogo_filter_deps="gpl"
2430 deshake_filter_deps="avcodec"
2431 deshake_filter_select="dsputil"
2432 drawtext_filter_deps="libfreetype"
2433 ebur128_filter_deps="gpl"
2434 flite_filter_deps="libflite"
2435 frei0r_filter_deps="frei0r dlopen"
2436 frei0r_filter_extralibs='$ldl'
2437 frei0r_src_filter_deps="frei0r dlopen"
2438 frei0r_src_filter_extralibs='$ldl'
2439 geq_filter_deps="gpl"
2440 histeq_filter_deps="gpl"
2441 hqdn3d_filter_deps="gpl"
2442 interlace_filter_deps="gpl"
2443 kerndeint_filter_deps="gpl"
2444 ladspa_filter_deps="ladspa dlopen"
2445 mcdeint_filter_deps="avcodec gpl"
2446 movie_filter_deps="avcodec avformat"
2447 mp_filter_deps="gpl avcodec swscale inline_asm"
2448 mpdecimate_filter_deps="gpl avcodec"
2449 mptestsrc_filter_deps="gpl"
2450 negate_filter_deps="lut_filter"
2451 perspective_filter_deps="gpl"
2452 ocv_filter_deps="libopencv"
2453 owdenoise_filter_deps="gpl"
2454 pan_filter_deps="swresample"
2455 phase_filter_deps="gpl"
2456 pp_filter_deps="gpl postproc"
2457 pullup_filter_deps="gpl"
2458 removelogo_filter_deps="avcodec avformat swscale"
2459 resample_filter_deps="avresample"
2460 sab_filter_deps="gpl swscale"
2461 scale_filter_deps="swscale"
2462 smartblur_filter_deps="gpl swscale"
2463 showspectrum_filter_deps="avcodec"
2464 showspectrum_filter_select="rdft"
2465 spp_filter_deps="gpl avcodec"
2466 spp_filter_select="fft"
2467 stereo3d_filter_deps="gpl"
2468 subtitles_filter_deps="avformat avcodec libass"
2469 super2xsai_filter_deps="gpl"
2470 tinterlace_filter_deps="gpl"
2471 vidstabdetect_filter_deps="libvidstab"
2472 vidstabtransform_filter_deps="libvidstab"
2473 pixfmts_super2xsai_test_deps="super2xsai_filter"
2474 tinterlace_merge_test_deps="tinterlace_filter"
2475 tinterlace_pad_test_deps="tinterlace_filter"
2476 zmq_filter_deps="libzmq"
2477
2478 # examples
2479 avio_reading="avformat avcodec avutil"
2480 avcodec_example_deps="avcodec avutil"
2481 demuxing_decoding_example_deps="avcodec avformat avutil"
2482 filter_audio_example_deps="avfilter avutil"
2483 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2484 filtering_video_example_deps="avfilter avcodec avformat avutil"
2485 metadata_example_deps="avformat avutil"
2486 muxing_example_deps="avcodec avformat avutil swscale"
2487 remuxing_example_deps="avcodec avformat avutil"
2488 resampling_audio_example_deps="avutil swresample"
2489 scaling_video_example_deps="avutil swscale"
2490 transcode_aac_example_deps="avcodec avformat swresample"
2491 transcoding_example_deps="avfilter avcodec avformat avutil"
2492
2493 # libraries
2494 avcodec_deps="avutil"
2495 avdevice_deps="avutil avcodec avformat"
2496 avfilter_deps="avutil"
2497 avformat_deps="avutil avcodec"
2498 avresample_deps="avutil"
2499 postproc_deps="avutil gpl"
2500 swscale_deps="avutil"
2501
2502 # programs
2503 ffmpeg_deps="avcodec avfilter avformat swresample"
2504 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2505                null_filter
2506                setpts_filter trim_filter"
2507 ffplay_deps="avcodec avformat swscale swresample sdl"
2508 ffplay_libs='$sdl_libs'
2509 ffplay_select="rdft crop_filter"
2510 ffprobe_deps="avcodec avformat"
2511 ffserver_deps="avformat fork sarestart"
2512 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2513
2514 # documentation
2515 podpages_deps="perl"
2516 manpages_deps="perl pod2man"
2517 htmlpages_deps="perl texi2html"
2518 txtpages_deps="perl makeinfo"
2519 doc_deps_any="manpages htmlpages podpages txtpages"
2520
2521 # default parameters
2522
2523 logfile="config.log"
2524
2525 # installation paths
2526 prefix_default="/usr/local"
2527 bindir_default='${prefix}/bin'
2528 datadir_default='${prefix}/share/ffmpeg'
2529 docdir_default='${prefix}/share/doc/ffmpeg'
2530 incdir_default='${prefix}/include'
2531 libdir_default='${prefix}/lib'
2532 mandir_default='${prefix}/share/man'
2533 shlibdir_default="$libdir_default"
2534
2535 # toolchain
2536 ar_default="ar"
2537 cc_default="gcc"
2538 cxx_default="g++"
2539 host_cc_default="gcc"
2540 cp_f="cp -f"
2541 install="install"
2542 ln_s="ln -s -f"
2543 nm_default="nm -g"
2544 objformat="elf"
2545 pkg_config_default=pkg-config
2546 ranlib="ranlib"
2547 strip_default="strip"
2548 yasmexe_default="yasm"
2549 windres_default="windres"
2550
2551 nogas=":"
2552
2553 # OS
2554 target_os_default=$(tolower $(uname -s))
2555 host_os=$target_os_default
2556
2557 # machine
2558 if test "$target_os_default" = aix; then
2559     arch_default=$(uname -p)
2560 else
2561     arch_default=$(uname -m)
2562 fi
2563 cpu="generic"
2564
2565 # configurable options
2566 enable $PROGRAM_LIST
2567 enable $DOCUMENT_LIST
2568 enable $EXAMPLE_LIST
2569 enable $(filter_out avresample $LIBRARY_LIST)
2570 enable stripping
2571
2572 enable asm
2573 enable debug
2574 enable doc
2575 enable optimizations
2576 enable runtime_cpudetect
2577 enable safe_bitstream_reader
2578 enable static
2579 enable swscale_alpha
2580
2581 # Enable hwaccels by default.
2582 enable dxva2 vaapi vda vdpau xvmc
2583 enable xlib
2584
2585 # build settings
2586 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2587 LIBPREF="lib"
2588 LIBSUF=".a"
2589 FULLNAME='$(NAME)$(BUILDSUF)'
2590 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2591 SLIBPREF="lib"
2592 SLIBSUF=".so"
2593 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2594 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2595 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2596 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2597 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2598 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2599
2600 asflags_filter=echo
2601 cflags_filter=echo
2602 ldflags_filter=echo
2603
2604 AS_C='-c'
2605 AS_O='-o $@'
2606 CC_C='-c'
2607 CC_E='-E -o $@'
2608 CC_O='-o $@'
2609 CXX_C='-c'
2610 CXX_O='-o $@'
2611 LD_O='-o $@'
2612 LD_LIB='-l%'
2613 LD_PATH='-L'
2614 HOSTCC_C='-c'
2615 HOSTCC_E='-E -o $@'
2616 HOSTCC_O='-o $@'
2617 HOSTLD_O='-o $@'
2618
2619 host_libs='-lm'
2620 host_cflags_filter=echo
2621 host_ldflags_filter=echo
2622
2623 target_path='$(CURDIR)'
2624
2625 # since the object filename is not given with the -MM flag, the compiler
2626 # is only able to print the basename, and we must add the path ourselves
2627 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2628 DEPFLAGS='-MM'
2629
2630 # find source path
2631 if test -f configure; then
2632     source_path=.
2633 else
2634     source_path=$(cd $(dirname "$0"); pwd)
2635     echo "$source_path" | grep -q '[[:blank:]]' &&
2636         die "Out of tree builds are impossible with whitespace in source path."
2637     test -e "$source_path/config.h" &&
2638         die "Out of tree builds are impossible with config.h in source dir."
2639 fi
2640
2641 for v in "$@"; do
2642     r=${v#*=}
2643     l=${v%"$r"}
2644     r=$(sh_quote "$r")
2645     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2646 done
2647
2648 find_things(){
2649     thing=$1
2650     pattern=$2
2651     file=$source_path/$3
2652     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2653 }
2654
2655 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2656 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2657 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2658 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2659 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2660 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2661 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2662 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2663 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2664 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2665 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2666
2667 ALL_COMPONENTS="
2668     $BSF_LIST
2669     $DECODER_LIST
2670     $DEMUXER_LIST
2671     $ENCODER_LIST
2672     $FILTER_LIST
2673     $HWACCEL_LIST
2674     $INDEV_LIST
2675     $MUXER_LIST
2676     $OUTDEV_LIST
2677     $PARSER_LIST
2678     $PROTOCOL_LIST
2679 "
2680
2681 for n in $COMPONENT_LIST; do
2682     v=$(toupper ${n%s})_LIST
2683     eval enable \$$v
2684     eval ${n}_if_any="\$$v"
2685 done
2686
2687 enable $ARCH_EXT_LIST
2688
2689 die_unknown(){
2690     echo "Unknown option \"$1\"."
2691     echo "See $0 --help for available options."
2692     exit 1
2693 }
2694
2695 print_3_columns() {
2696     cat | tr ' ' '\n' | sort | pr -r -3 -t
2697 }
2698
2699 show_list() {
2700     suffix=_$1
2701     shift
2702     echo $* | sed s/$suffix//g | print_3_columns
2703     exit 0
2704 }
2705
2706 rand_list(){
2707     IFS=', '
2708     set -- $*
2709     unset IFS
2710     for thing; do
2711         comp=${thing%:*}
2712         prob=${thing#$comp}
2713         prob=${prob#:}
2714         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2715         echo "prob ${prob:-0.5}"
2716         printf '%s\n' $comp
2717     done
2718 }
2719
2720 do_random(){
2721     action=$1
2722     shift
2723     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2724     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2725 }
2726
2727 for opt do
2728     optval="${opt#*=}"
2729     case "$opt" in
2730         --extra-ldflags=*)
2731             add_ldflags $optval
2732         ;;
2733         --extra-libs=*)
2734             add_extralibs $optval
2735         ;;
2736         --disable-devices)
2737             disable $INDEV_LIST $OUTDEV_LIST
2738         ;;
2739         --enable-debug=*)
2740             debuglevel="$optval"
2741         ;;
2742         --disable-programs)
2743             disable $PROGRAM_LIST
2744         ;;
2745         --disable-everything)
2746             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2747         ;;
2748         --disable-all)
2749             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2750             disable $LIBRARY_LIST $PROGRAM_LIST doc
2751         ;;
2752         --enable-random|--disable-random)
2753             action=${opt%%-random}
2754             do_random ${action#--} $COMPONENT_LIST
2755         ;;
2756         --enable-random=*|--disable-random=*)
2757             action=${opt%%-random=*}
2758             do_random ${action#--} $optval
2759         ;;
2760         --enable-*=*|--disable-*=*)
2761             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2762             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2763             eval list=\$$(toupper $thing)_LIST
2764             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2765             list=$(filter "$name" $list)
2766             [ "$list" = "" ] && warn "Option $opt did not match anything"
2767             $action $list
2768         ;;
2769         --enable-?*|--disable-?*)
2770             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2771             if is_in $option $COMPONENT_LIST; then
2772                 test $action = disable && action=unset
2773                 eval $action \$$(toupper ${option%s})_LIST
2774             elif is_in $option $CMDLINE_SELECT; then
2775                 $action $option
2776             else
2777                 die_unknown $opt
2778             fi
2779         ;;
2780         --list-*)
2781             NAME="${opt#--list-}"
2782             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2783             NAME=${NAME%s}
2784             eval show_list $NAME \$$(toupper $NAME)_LIST
2785         ;;
2786         --help|-h) show_help
2787         ;;
2788         --fatal-warnings) enable fatal_warnings
2789         ;;
2790         *)
2791             optname="${opt%%=*}"
2792             optname="${optname#--}"
2793             optname=$(echo "$optname" | sed 's/-/_/g')
2794             if is_in $optname $CMDLINE_SET; then
2795                 eval $optname='$optval'
2796             elif is_in $optname $CMDLINE_APPEND; then
2797                 append $optname "$optval"
2798             else
2799                 die_unknown $opt
2800             fi
2801         ;;
2802     esac
2803 done
2804
2805 disabled logging && logfile=/dev/null
2806
2807 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2808 set >> $logfile
2809
2810 test -n "$cross_prefix" && enable cross_compile
2811
2812 if enabled cross_compile; then
2813     test -n "$arch" && test -n "$target_os" ||
2814         die "Must specify target arch and OS when cross-compiling"
2815 fi
2816
2817 ar_default="${cross_prefix}${ar_default}"
2818 cc_default="${cross_prefix}${cc_default}"
2819 cxx_default="${cross_prefix}${cxx_default}"
2820 nm_default="${cross_prefix}${nm_default}"
2821 pkg_config_default="${cross_prefix}${pkg_config_default}"
2822 ranlib="${cross_prefix}${ranlib}"
2823 strip_default="${cross_prefix}${strip_default}"
2824 windres_default="${cross_prefix}${windres_default}"
2825
2826 sysinclude_default="${sysroot}/usr/include"
2827
2828 test -n "$valgrind" && toolchain="valgrind-memcheck"
2829
2830 case "$toolchain" in
2831     clang-asan)
2832         cc_default="clang"
2833         add_cflags  -fsanitize=address
2834         add_ldflags -fsanitize=address
2835     ;;
2836     clang-tsan)
2837         cc_default="clang"
2838         add_cflags  -fsanitize=thread -pie
2839         add_ldflags -fsanitize=thread -pie
2840     ;;
2841     clang-usan)
2842         cc_default="clang"
2843         add_cflags  -fsanitize=undefined
2844         add_ldflags -fsanitize=undefined
2845     ;;
2846     gcc-asan)
2847         cc_default="gcc"
2848         add_cflags  -fsanitize=address
2849         add_ldflags -fsanitize=address
2850     ;;
2851     gcc-tsan)
2852         cc_default="gcc"
2853         add_cflags  -fsanitize=thread -pie -fPIC
2854         add_ldflags -fsanitize=thread -pie -fPIC
2855     ;;
2856     gcc-usan)
2857         cc_default="gcc"
2858         add_cflags  -fsanitize=undefined
2859         add_ldflags -fsanitize=undefined
2860     ;;
2861     valgrind-massif)
2862         target_exec_default=${valgrind:-"valgrind"}
2863         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"
2864     ;;
2865     valgrind-memcheck)
2866         target_exec_default=${valgrind:-"valgrind"}
2867         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2868     ;;
2869     msvc)
2870         # Check whether the current MSVC version needs the C99 converter.
2871         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2872         # support enough of C99 to build ffmpeg. Default to the new
2873         # behaviour if the regexp was unable to match anything, since this
2874         # successfully parses the version number of existing supported
2875         # versions that require the converter (MSVC 2010 and 2012).
2876         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2877         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2878             cc_default="cl"
2879         else
2880             cc_default="c99wrap cl"
2881         fi
2882         ld_default="link"
2883         nm_default="dumpbin -symbols"
2884         ar_default="lib"
2885         target_os_default="win32"
2886         # Use a relative path for TMPDIR. This makes sure all the
2887         # ffconf temp files are written with a relative path, avoiding
2888         # issues with msys/win32 path conversion for MSVC parameters
2889         # such as -Fo<file> or -out:<file>.
2890         TMPDIR=.
2891     ;;
2892     icl)
2893         cc_default="icl"
2894         ld_default="xilink"
2895         nm_default="dumpbin -symbols"
2896         ar_default="xilib"
2897         target_os_default="win32"
2898         TMPDIR=.
2899     ;;
2900     gcov)
2901         add_cflags  -fprofile-arcs -ftest-coverage
2902         add_ldflags -fprofile-arcs -ftest-coverage
2903     ;;
2904     hardened)
2905         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2906         add_ldflags -Wl,-z,relro -Wl,-z,now
2907     ;;
2908     ?*)
2909         die "Unknown toolchain $toolchain"
2910     ;;
2911 esac
2912
2913 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2914 enabled cross_compile || host_cc_default=$cc
2915 set_default host_cc
2916
2917 if ! $pkg_config --version >/dev/null 2>&1; then
2918     warn "$pkg_config not found, library detection may fail."
2919     pkg_config=false
2920 fi
2921
2922 exesuf() {
2923     case $1 in
2924         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2925     esac
2926 }
2927
2928 EXESUF=$(exesuf $target_os)
2929 HOSTEXESUF=$(exesuf $host_os)
2930
2931 # set temporary file name
2932 : ${TMPDIR:=$TEMPDIR}
2933 : ${TMPDIR:=$TMP}
2934 : ${TMPDIR:=/tmp}
2935
2936 if [ -n "$tempprefix" ] ; then
2937     mktemp(){
2938         echo $tempprefix.${HOSTNAME}.${UID}
2939     }
2940 elif ! check_cmd mktemp -u XXXXXX; then
2941     # simple replacement for missing mktemp
2942     # NOT SAFE FOR GENERAL USE
2943     mktemp(){
2944         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2945     }
2946 fi
2947
2948 tmpfile(){
2949     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2950         (set -C; exec > $tmp) 2>/dev/null ||
2951         die "Unable to create temporary file in $TMPDIR."
2952     append TMPFILES $tmp
2953     eval $1=$tmp
2954 }
2955
2956 trap 'rm -f -- $TMPFILES' EXIT
2957
2958 tmpfile TMPASM .asm
2959 tmpfile TMPC   .c
2960 tmpfile TMPCPP .cpp
2961 tmpfile TMPE   $EXESUF
2962 tmpfile TMPH   .h
2963 tmpfile TMPO   .o
2964 tmpfile TMPS   .S
2965 tmpfile TMPSH  .sh
2966 tmpfile TMPV   .ver
2967
2968 unset -f mktemp
2969
2970 chmod +x $TMPE
2971
2972 # make sure we can execute files in $TMPDIR
2973 cat > $TMPSH 2>> $logfile <<EOF
2974 #! /bin/sh
2975 EOF
2976 chmod +x $TMPSH >> $logfile 2>&1
2977 if ! $TMPSH >> $logfile 2>&1; then
2978     cat <<EOF
2979 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2980 variable to another directory and make sure that it is not mounted noexec.
2981 EOF
2982     die "Sanity test failed."
2983 fi
2984
2985 ccc_flags(){
2986     for flag; do
2987         case $flag in
2988             -std=c99)           echo -c99                       ;;
2989             -mcpu=*)            echo -arch ${flag#*=}           ;;
2990             -mieee)             echo -ieee                      ;;
2991             -O*|-fast)          echo $flag                      ;;
2992             -fno-math-errno)    echo -assume nomath_errno       ;;
2993             -g)                 echo -g3                        ;;
2994             -Wall)              echo -msg_enable level2         ;;
2995             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2996             -Wl,*)              echo $flag                      ;;
2997             -f*|-W*)                                            ;;
2998             *)                  echo $flag                      ;;
2999         esac
3000    done
3001 }
3002
3003 cparser_flags(){
3004     for flag; do
3005         case $flag in
3006             -Wno-switch)             echo -Wno-switch-enum ;;
3007             -Wno-format-zero-length) ;;
3008             -Wdisabled-optimization) ;;
3009             -Wno-pointer-sign)       echo -Wno-other ;;
3010             *)                       echo $flag ;;
3011         esac
3012     done
3013 }
3014
3015 msvc_common_flags(){
3016     for flag; do
3017         case $flag in
3018             # In addition to specifying certain flags under the compiler
3019             # specific filters, they must be specified here as well or else the
3020             # generic catch all at the bottom will print the original flag.
3021             -Wall)                ;;
3022             -std=c99)             ;;
3023             # Common flags
3024             -fomit-frame-pointer) ;;
3025             -g)                   echo -Z7 ;;
3026             -fno-math-errno)      ;;
3027             -fno-common)          ;;
3028             -fno-signed-zeros)    ;;
3029             -fPIC)                ;;
3030             -mthumb)              ;;
3031             -march=*)             ;;
3032             -lz)                  echo zlib.lib ;;
3033             -lavifil32)           echo vfw32.lib ;;
3034             -lavicap32)           echo vfw32.lib user32.lib ;;
3035             -l*)                  echo ${flag#-l}.lib ;;
3036             *)                    echo $flag ;;
3037         esac
3038     done
3039 }
3040
3041 msvc_flags(){
3042     msvc_common_flags "$@"
3043     for flag; do
3044         case $flag in
3045             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3046                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3047                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3048                                        -wd4554 \
3049                                        -wd4273 ;;
3050         esac
3051     done
3052 }
3053
3054 icl_flags(){
3055     msvc_common_flags "$@"
3056     for flag; do
3057         case $flag in
3058             # Despite what Intel's documentation says -Wall, which is supported
3059             # on Windows, does enable remarks so disable them here.
3060             -Wall)                echo $flag -Qdiag-disable:remark ;;
3061             -std=c99)             echo -Qstd=c99 ;;
3062         esac
3063     done
3064 }
3065
3066 pgi_flags(){
3067     for flag; do
3068         case $flag in
3069             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3070             -fomit-frame-pointer) echo -Mnoframe ;;
3071             -g)                   echo -gopt ;;
3072             *)                    echo $flag ;;
3073         esac
3074     done
3075 }
3076
3077 suncc_flags(){
3078     for flag; do
3079         case $flag in
3080             -march=*|-mcpu=*)
3081                 case "${flag#*=}" in
3082                     native)                   echo -xtarget=native       ;;
3083                     v9|niagara)               echo -xarch=sparc          ;;
3084                     ultrasparc)               echo -xarch=sparcvis       ;;
3085                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3086                     i586|pentium)             echo -xchip=pentium        ;;
3087                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3088                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3089                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3090                     pentium4*)          echo -xtarget=pentium4           ;;
3091                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3092                     *-sse3)             echo -xarch=sse3                 ;;
3093                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3094                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3095                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3096                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3097                     bdver*)                    echo -xarch=avx           ;;
3098                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3099                     k8|opteron|athlon64|athlon-fx)
3100                                                echo -xarch=sse2a         ;;
3101                     athlon*)                   echo -xarch=pentium_proa  ;;
3102                 esac
3103                 ;;
3104             -std=c99)             echo -xc99              ;;
3105             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3106             -fPIC)                echo -KPIC -xcode=pic32 ;;
3107             -W*,*)                echo $flag              ;;
3108             -f*-*|-W*|-mimpure-text)                      ;;
3109             -shared)              echo -G                 ;;
3110             *)                    echo $flag              ;;
3111         esac
3112     done
3113 }
3114
3115 tms470_flags(){
3116     for flag; do
3117         case $flag in
3118             -march=*|-mcpu=*)
3119                 case "${flag#*=}" in
3120                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3121                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3122                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3123                     armv6*|arm11*)          echo -mv=6   ;;
3124                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3125                                             echo -mv=5e  ;;
3126                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3127                 esac
3128                 ;;
3129             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3130             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3131             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3132             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3133             -msoft-float)   echo --float_support=vfplib       ;;
3134             -O[0-3]|-mf=*)  echo $flag                        ;;
3135             -g)             echo -g -mn                       ;;
3136             -pds=*)         echo $flag                        ;;
3137             -D*|-I*)        echo $flag                        ;;
3138             --gcc|--abi=*)  echo $flag                        ;;
3139             -me)            echo $flag                        ;;
3140         esac
3141     done
3142 }
3143
3144 probe_cc(){
3145     pfx=$1
3146     _cc=$2
3147
3148     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3149     unset _ld_o _ldflags _ld_lib _ld_path
3150     unset _depflags _DEPCMD _DEPFLAGS
3151     _flags_filter=echo
3152
3153     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3154         true # no-op to avoid reading stdin in following checks
3155     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3156         _type=llvm_gcc
3157         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3158         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3159         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3160         _cflags_speed='-O3'
3161         _cflags_size='-Os'
3162     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3163         _type=gcc
3164         gcc_version=$($_cc --version | head -n1)
3165         gcc_basever=$($_cc -dumpversion)
3166         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3167         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3168         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3169         if ! $_cc -dumpversion | grep -q '^2\.'; then
3170             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3171         fi
3172         _cflags_speed='-O3'
3173         _cflags_size='-Os'
3174     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3175         _type=icc
3176         _ident=$($_cc --version | head -n1)
3177         _depflags='-MMD'
3178         _cflags_speed='-O3'
3179         _cflags_size='-Os'
3180         _cflags_noopt='-O1'
3181     elif $_cc -v 2>&1 | grep -q xlc; then
3182         _type=xlc
3183         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3184         _cflags_speed='-O5'
3185         _cflags_size='-O5 -qcompact'
3186     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3187         _type=ccc
3188         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3189         _DEPFLAGS='-M'
3190         _cflags_speed='-fast'
3191         _cflags_size='-O1'
3192         _flags_filter=ccc_flags
3193     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM C/C[+][+] Compiler|Component: ARM Compiler "; then
3194         test -d "$sysroot" || die "No valid sysroot specified."
3195         _type=armcc
3196         _ident=$($_cc --vsn | head -n1)
3197         armcc_conf="$PWD/armcc.conf"
3198         $_cc --arm_linux_configure                 \
3199              --arm_linux_config_file="$armcc_conf" \
3200              --configure_sysroot="$sysroot"        \
3201              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3202              die "Error creating armcc configuration file."
3203         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3204         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3205         as_default="${cross_prefix}gcc"
3206         _depflags='-MMD'
3207         _cflags_speed='-O3'
3208         _cflags_size='-Os'
3209     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3210         _type=tms470
3211         _ident=$($_cc -version | head -n1 | tr -s ' ')
3212         _flags='--gcc --abi=eabi -me'
3213         _cc_e='-ppl -fe=$@'
3214         _cc_o='-fe=$@'
3215         _depflags='-ppa -ppd=$(@:.o=.d)'
3216         _cflags_speed='-O3 -mf=5'
3217         _cflags_size='-O3 -mf=2'
3218         _flags_filter=tms470_flags
3219     elif $_cc -v 2>&1 | grep -q clang; then
3220         _type=clang
3221         _ident=$($_cc --version | head -n1)
3222         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3223         _cflags_speed='-O3'
3224         _cflags_size='-Os'
3225     elif $_cc -V 2>&1 | grep -q Sun; then
3226         _type=suncc
3227         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3228         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3229         _DEPFLAGS='-xM1 -xc99'
3230         _ldflags='-std=c99'
3231         _cflags_speed='-O5'
3232         _cflags_size='-O5 -xspace'
3233         _flags_filter=suncc_flags
3234     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3235         _type=pathscale
3236         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3237         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3238         _cflags_speed='-O2'
3239         _cflags_size='-Os'
3240         _flags_filter='filter_out -Wdisabled-optimization'
3241     elif $_cc -v 2>&1 | grep -q Open64; then
3242         _type=open64
3243         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3244         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3245         _cflags_speed='-O2'
3246         _cflags_size='-Os'
3247         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3248     elif $_cc -V 2>&1 | grep -q Portland; then
3249         _type=pgi
3250         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3251         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3252         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3253         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3254         _cflags_noopt="-O"
3255         _flags_filter=pgi_flags
3256     elif $_cc 2>&1 | grep -q Microsoft; then
3257         _type=msvc
3258         _ident=$($cc 2>&1 | head -n1)
3259         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3260         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3261         _cflags_speed="-O2"
3262         _cflags_size="-O1"
3263         if $_cc 2>&1 | grep -q Linker; then
3264             _ld_o='-out:$@'
3265         else
3266             _ld_o='-Fe$@'
3267         fi
3268         _cc_o='-Fo$@'
3269         _cc_e='-P -Fi$@'
3270         _flags_filter=msvc_flags
3271         _ld_lib='lib%.a'
3272         _ld_path='-libpath:'
3273         _flags='-nologo'
3274         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3275         if [ $pfx = hostcc ]; then
3276             append _cflags -Dsnprintf=_snprintf
3277         fi
3278         disable stripping
3279     elif $_cc 2>&1 | grep -q Intel; then
3280         _type=icl
3281         _ident=$($cc 2>&1 | head -n1)
3282         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3283         # Not only is O3 broken on 13.x+ but it is slower on all previous
3284         # versions (tested) as well.
3285         _cflags_speed="-O2"
3286         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3287         if $_cc 2>&1 | grep -q Linker; then
3288             _ld_o='-out:$@'
3289         else
3290             _ld_o='-Fe$@'
3291         fi
3292         _cc_o='-Fo$@'
3293         _cc_e='-P'
3294         _flags_filter=icl_flags
3295         _ld_lib='lib%.a'
3296         _ld_path='-libpath:'
3297         # -Qdiag-error to make icl error when seeing certain unknown arguments
3298         _flags='-nologo -Qdiag-error:4044,10157'
3299         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3300         # with MSVC which enables it by default.
3301         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3302         if [ $pfx = hostcc ]; then
3303             append _cflags -Dsnprintf=_snprintf
3304         fi
3305     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3306         _type=cparser
3307         _ident=$($_cc --version | head -n1)
3308         _depflags='-MMD'
3309         _cflags_speed='-O4'
3310         _cflags_size='-O2'
3311         _flags_filter=cparser_flags
3312     fi
3313
3314     eval ${pfx}_type=\$_type
3315     eval ${pfx}_ident=\$_ident
3316 }
3317
3318 set_ccvars(){
3319     eval ${1}_C=\${_cc_c-\${${1}_C}}
3320     eval ${1}_E=\${_cc_e-\${${1}_E}}
3321     eval ${1}_O=\${_cc_o-\${${1}_O}}
3322
3323     if [ -n "$_depflags" ]; then
3324         eval ${1}_DEPFLAGS=\$_depflags
3325     else
3326         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3327         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3328         eval DEP${1}FLAGS=\$_flags
3329     fi
3330 }
3331
3332 probe_cc cc "$cc"
3333 cflags_filter=$_flags_filter
3334 cflags_speed=$_cflags_speed
3335 cflags_size=$_cflags_size
3336 cflags_noopt=$_cflags_noopt
3337 add_cflags $_flags $_cflags
3338 cc_ldflags=$_ldflags
3339 set_ccvars CC
3340
3341 probe_cc hostcc "$host_cc"
3342 host_cflags_filter=$_flags_filter
3343 add_host_cflags  $_flags $_cflags
3344 set_ccvars HOSTCC
3345
3346 test -n "$cc_type" && enable $cc_type ||
3347     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3348
3349 : ${as_default:=$cc}
3350 : ${dep_cc_default:=$cc}
3351 : ${ld_default:=$cc}
3352 : ${host_ld_default:=$host_cc}
3353 set_default ar as dep_cc ld host_ld windres
3354
3355 probe_cc as "$as"
3356 asflags_filter=$_flags_filter
3357 add_asflags $_flags $_cflags
3358 set_ccvars AS
3359
3360 probe_cc ld "$ld"
3361 ldflags_filter=$_flags_filter
3362 add_ldflags $_flags $_ldflags
3363 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3364 LD_O=${_ld_o-$LD_O}
3365 LD_LIB=${_ld_lib-$LD_LIB}
3366 LD_PATH=${_ld_path-$LD_PATH}
3367
3368 probe_cc hostld "$host_ld"
3369 host_ldflags_filter=$_flags_filter
3370 add_host_ldflags $_flags $_ldflags
3371 HOSTLD_O=${_ld_o-$HOSTLD_O}
3372
3373 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3374     probe_cc depcc "$dep_cc"
3375     CCDEP=${_DEPCMD:-$DEPCMD}
3376     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3377     DEPCCFLAGS=$_flags
3378 fi
3379
3380 if $ar 2>&1 | grep -q Microsoft; then
3381     arflags="-nologo"
3382     ar_o='-out:$@'
3383 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3384     arflags="rq"
3385     ar_o='$@'
3386 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3387     arflags='-Xany -r -c'
3388     ar_o='$@'
3389 else
3390     arflags="rc"
3391     ar_o='$@'
3392 fi
3393
3394 add_cflags $extra_cflags
3395 add_cxxflags $extra_cxxflags
3396 add_asflags $extra_cflags
3397
3398 if test -n "$sysroot"; then
3399     case "$cc_type" in
3400         gcc|llvm_gcc|clang)
3401             add_cppflags --sysroot="$sysroot"
3402             add_ldflags --sysroot="$sysroot"
3403 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3404             add_cppflags -isysroot "$sysroot"
3405             add_ldflags -isysroot "$sysroot"
3406         ;;
3407         tms470)
3408             add_cppflags -I"$sysinclude"
3409             add_ldflags  --sysroot="$sysroot"
3410         ;;
3411     esac
3412 fi
3413
3414 if test "$cpu" = host; then
3415     enabled cross_compile &&
3416         die "--cpu=host makes no sense when cross-compiling."
3417
3418     case "$cc_type" in
3419         gcc|llvm_gcc)
3420             check_native(){
3421                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3422                 sed -n "/cc1.*$1=/{
3423                             s/.*$1=\\([^ ]*\\).*/\\1/
3424                             p
3425                             q
3426                         }" $TMPE
3427             }
3428             cpu=$(check_native -march || check_native -mcpu)
3429         ;;
3430     esac
3431
3432     test "${cpu:-host}" = host &&
3433         die "--cpu=host not supported with compiler $cc"
3434 fi
3435
3436 # Deal with common $arch aliases
3437 case "$arch" in
3438     aarch64|arm64)
3439         arch="aarch64"
3440     ;;
3441     arm*|iPad*|iPhone*)
3442         arch="arm"
3443     ;;
3444     mips*|IP*)
3445         arch="mips"
3446     ;;
3447     parisc*|hppa*)
3448         arch="parisc"
3449     ;;
3450     "Power Macintosh"|ppc*|powerpc*)
3451         arch="ppc"
3452     ;;
3453     s390|s390x)
3454         arch="s390"
3455     ;;
3456     sh4|sh)
3457         arch="sh4"
3458     ;;
3459     sun4u|sparc*)
3460         arch="sparc"
3461     ;;
3462     tilegx|tile-gx)
3463         arch="tilegx"
3464     ;;
3465     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3466         arch="x86"
3467     ;;
3468 esac
3469
3470 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3471 enable $arch
3472
3473 # Add processor-specific flags
3474 if enabled aarch64; then
3475
3476     case $cpu in
3477         armv*)
3478             cpuflags="-march=$cpu"
3479         ;;
3480         *)
3481             cpuflags="-mcpu=$cpu"
3482         ;;
3483     esac
3484
3485 elif enabled alpha; then
3486
3487     cpuflags="-mcpu=$cpu"
3488
3489 elif enabled arm; then
3490
3491     check_arm_arch() {
3492         check_cpp_condition stddef.h \
3493             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3494             $cpuflags
3495     }
3496
3497     probe_arm_arch() {
3498         if   check_arm_arch 4;        then echo armv4;
3499         elif check_arm_arch 4T;       then echo armv4t;
3500         elif check_arm_arch 5;        then echo armv5;
3501         elif check_arm_arch 5E;       then echo armv5e;
3502         elif check_arm_arch 5T;       then echo armv5t;
3503         elif check_arm_arch 5TE;      then echo armv5te;
3504         elif check_arm_arch 5TEJ;     then echo armv5te;
3505         elif check_arm_arch 6;        then echo armv6;
3506         elif check_arm_arch 6J;       then echo armv6j;
3507         elif check_arm_arch 6K;       then echo armv6k;
3508         elif check_arm_arch 6Z;       then echo armv6z;
3509         elif check_arm_arch 6ZK;      then echo armv6zk;
3510         elif check_arm_arch 6T2;      then echo armv6t2;
3511         elif check_arm_arch 7;        then echo armv7;
3512         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3513         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3514         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3515         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3516         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3517         fi
3518     }
3519
3520     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3521
3522     case $cpu in
3523         armv*)
3524             cpuflags="-march=$cpu"
3525             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3526         ;;
3527         *)
3528             cpuflags="-mcpu=$cpu"
3529             case $cpu in
3530                 cortex-a*)                               subarch=armv7a  ;;
3531                 cortex-r*)                               subarch=armv7r  ;;
3532                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3533                 arm11*)                                  subarch=armv6   ;;
3534                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3535                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3536                 *)                             subarch=$(probe_arm_arch) ;;
3537             esac
3538         ;;
3539     esac
3540
3541     case "$subarch" in
3542         armv5t*)    enable fast_clz                ;;
3543         armv[6-8]*) enable fast_clz fast_unaligned ;;
3544     esac
3545
3546 elif enabled avr32; then
3547
3548     case $cpu in
3549         ap7[02]0[0-2])
3550             subarch="avr32_ap"
3551             cpuflags="-mpart=$cpu"
3552         ;;
3553         ap)
3554             subarch="avr32_ap"
3555             cpuflags="-march=$cpu"
3556         ;;
3557         uc3[ab]*)
3558             subarch="avr32_uc"
3559             cpuflags="-mcpu=$cpu"
3560         ;;
3561         uc)
3562             subarch="avr32_uc"
3563             cpuflags="-march=$cpu"
3564         ;;
3565     esac
3566
3567 elif enabled bfin; then
3568
3569     cpuflags="-mcpu=$cpu"
3570
3571 elif enabled mips; then
3572
3573     cpuflags="-march=$cpu"
3574
3575     case $cpu in
3576         24kc)
3577             disable mipsfpu
3578             disable mipsdspr1
3579             disable mipsdspr2
3580         ;;
3581         24kf*)
3582             disable mipsdspr1
3583             disable mipsdspr2
3584         ;;
3585         24kec|34kc|1004kc)
3586             disable mipsfpu
3587             disable mipsdspr2
3588         ;;
3589         24kef*|34kf*|1004kf*)
3590             disable mipsdspr2
3591         ;;
3592         74kc)
3593             disable mipsfpu
3594         ;;
3595     esac
3596
3597 elif enabled ppc; then
3598
3599     disable ldbrx
3600
3601     case $(tolower $cpu) in
3602         601|ppc601|powerpc601)
3603             cpuflags="-mcpu=601"
3604             disable altivec
3605         ;;
3606         603*|ppc603*|powerpc603*)
3607             cpuflags="-mcpu=603"
3608             disable altivec
3609         ;;
3610         604*|ppc604*|powerpc604*)
3611             cpuflags="-mcpu=604"
3612             disable altivec
3613         ;;
3614         g3|75*|ppc75*|powerpc75*)
3615             cpuflags="-mcpu=750"
3616             disable altivec
3617         ;;
3618         g4|745*|ppc745*|powerpc745*)
3619             cpuflags="-mcpu=7450"
3620         ;;
3621         74*|ppc74*|powerpc74*)
3622             cpuflags="-mcpu=7400"
3623         ;;
3624         g5|970|ppc970|powerpc970)
3625             cpuflags="-mcpu=970"
3626         ;;
3627         power[3-7]*)
3628             cpuflags="-mcpu=$cpu"
3629         ;;
3630         cell)
3631             cpuflags="-mcpu=cell"
3632             enable ldbrx
3633         ;;
3634         e500mc)
3635             cpuflags="-mcpu=e500mc"
3636             disable altivec
3637         ;;
3638         e500v2)
3639             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3640             disable altivec
3641             disable dcbzl
3642         ;;
3643         e500)
3644             cpuflags="-mcpu=8540 -mhard-float"
3645             disable altivec
3646             disable dcbzl
3647         ;;
3648     esac
3649
3650 elif enabled sparc; then
3651
3652     case $cpu in
3653         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3654             cpuflags="-mcpu=$cpu"
3655         ;;
3656         ultrasparc*|niagara[234])
3657             cpuflags="-mcpu=$cpu"
3658         ;;
3659     esac
3660
3661 elif enabled x86; then
3662
3663     case $cpu in
3664         i[345]86|pentium)
3665             cpuflags="-march=$cpu"
3666             disable mmx
3667         ;;
3668         # targets that do NOT support nopl and conditional mov (cmov)
3669         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3670             cpuflags="-march=$cpu"
3671             disable i686
3672         ;;
3673         # targets that do support nopl and conditional mov (cmov)
3674         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3675             cpuflags="-march=$cpu"
3676             enable i686
3677             enable fast_cmov
3678         ;;
3679         # targets that do support conditional mov but on which it's slow
3680         pentium4|pentium4m|prescott|nocona)
3681             cpuflags="-march=$cpu"
3682             enable i686
3683             disable fast_cmov
3684         ;;
3685     esac
3686
3687 fi
3688
3689 if [ "$cpu" != generic ]; then
3690     add_cflags  $cpuflags
3691     add_asflags $cpuflags
3692 fi
3693
3694 # compiler sanity check
3695 check_exec <<EOF
3696 int main(void){ return 0; }
3697 EOF
3698 if test "$?" != 0; then
3699     echo "$cc is unable to create an executable file."
3700     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3701         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3702         echo "Only do this if you know what cross compiling means."
3703     fi
3704     die "C compiler test failed."
3705 fi
3706
3707 add_cppflags -D_ISOC99_SOURCE
3708 add_cxxflags -D__STDC_CONSTANT_MACROS
3709 check_cflags -std=c99
3710 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3711 #include <stdlib.h>
3712 EOF
3713 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3714 #include <stdlib.h>
3715 EOF
3716
3717 add_host_cppflags -D_ISOC99_SOURCE
3718 check_host_cflags -std=c99
3719 check_host_cflags -Wall
3720 check_host_cflags -O3
3721
3722 check_64bit(){
3723     arch32=$1
3724     arch64=$2
3725     expr=$3
3726     check_code cc "" "int test[2*($expr) - 1]" &&
3727         subarch=$arch64 || subarch=$arch32
3728 }
3729
3730 case "$arch" in
3731     aarch64|alpha|ia64)
3732         spic=$shared
3733     ;;
3734     mips)
3735         check_64bit mips mips64 '_MIPS_SIM > 1'
3736         spic=$shared
3737     ;;
3738     parisc)
3739         check_64bit parisc parisc64 'sizeof(void *) > 4'
3740         spic=$shared
3741     ;;
3742     ppc)
3743         check_64bit ppc ppc64 'sizeof(void *) > 4'
3744         spic=$shared
3745     ;;
3746     s390)
3747         check_64bit s390 s390x 'sizeof(void *) > 4'
3748         spic=$shared
3749     ;;
3750     sparc)
3751         check_64bit sparc sparc64 'sizeof(void *) > 4'
3752         spic=$shared
3753     ;;
3754     x86)
3755         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3756         if test "$subarch" = "x86_64"; then
3757             spic=$shared
3758         fi
3759     ;;
3760     ppc)
3761         check_cc <<EOF && subarch="ppc64"
3762         int test[(int)sizeof(char*) - 7];
3763 EOF
3764     ;;
3765 esac
3766
3767 enable $subarch
3768 enabled spic && enable_weak pic
3769
3770 # OS specific
3771 case $target_os in
3772     aix)
3773         SHFLAGS=-shared
3774         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3775         enabled shared && add_ldflags -Wl,-brtl
3776         ;;
3777     haiku)
3778         prefix_default="/boot/common"
3779         network_extralibs="-lnetwork"
3780         host_libs=
3781         ;;
3782     sunos)
3783         SHFLAGS='-shared -Wl,-h,$$(@F)'
3784         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3785         network_extralibs="-lsocket -lnsl"
3786         # When using suncc to build, the Solaris linker will mark
3787         # an executable with each instruction set encountered by
3788         # the Solaris assembler.  As our libraries contain their own
3789         # guards for processor-specific code, instead suppress
3790         # generation of the HWCAPS ELF section on Solaris x86 only.
3791         enabled_all suncc x86 &&
3792             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3793             add_ldflags -Wl,-M,mapfile
3794         nm_default='nm -P -g'
3795         ;;
3796     netbsd)
3797         disable symver
3798         oss_indev_extralibs="-lossaudio"
3799         oss_outdev_extralibs="-lossaudio"
3800         enabled gcc || check_ldflags -Wl,-zmuldefs
3801         ;;
3802     openbsd|bitrig)
3803         disable symver
3804         SHFLAGS='-shared'
3805         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3806         SLIB_INSTALL_LINKS=
3807         oss_indev_extralibs="-lossaudio"
3808         oss_outdev_extralibs="-lossaudio"
3809         ;;
3810     dragonfly)
3811         disable symver
3812         ;;
3813     freebsd)
3814         ;;
3815     bsd/os)
3816         add_extralibs -lpoll -lgnugetopt
3817         strip="strip -d"
3818         ;;
3819     darwin)
3820         gas="gas-preprocessor.pl $cc"
3821         enabled ppc && add_asflags -force_cpusubtype_ALL
3822         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3823         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3824         strip="${strip} -x"
3825         add_ldflags -Wl,-dynamic,-search_paths_first
3826         SLIBSUF=".dylib"
3827         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3828         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3829         objformat="macho"
3830         enabled x86_64 && objformat="macho64"
3831         enabled_any pic shared ||
3832             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3833         ;;
3834     mingw32*)
3835         if test $target_os = "mingw32ce"; then
3836             disable network
3837         else
3838             target_os=mingw32
3839         fi
3840         LIBTARGET=i386
3841         if enabled x86_64; then
3842             LIBTARGET="i386:x86-64"
3843         elif enabled arm; then
3844             LIBTARGET=arm-wince
3845         fi
3846         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3847         check_ldflags -Wl,--nxcompat
3848         check_ldflags -Wl,--dynamicbase
3849         shlibdir_default="$bindir_default"
3850         SLIBPREF=""
3851         SLIBSUF=".dll"
3852         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3853         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3854         dlltool="${cross_prefix}dlltool"
3855         if check_cmd lib.exe -list; then
3856             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3857             if enabled x86_64; then
3858                 LIBTARGET=x64
3859             fi
3860         elif check_cmd $dlltool --version; then
3861             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3862         fi
3863         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3864         SLIB_INSTALL_LINKS=
3865         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3866         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3867         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3868         objformat="win32"
3869         ranlib=:
3870         enable dos_paths
3871         ;;
3872     win32|win64)
3873         disable symver
3874         if enabled shared; then
3875             # Link to the import library instead of the normal static library
3876             # for shared libs.
3877             LD_LIB='%.lib'
3878             # Cannot build both shared and static libs with MSVC or icl.
3879             disable static
3880         fi
3881         shlibdir_default="$bindir_default"
3882         SLIBPREF=""
3883         SLIBSUF=".dll"
3884         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3885         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3886         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3887         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3888         SLIB_INSTALL_LINKS=
3889         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3890         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3891         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3892         objformat="win32"
3893         ranlib=:
3894         enable dos_paths
3895         ;;
3896     cygwin*)
3897         target_os=cygwin
3898         shlibdir_default="$bindir_default"
3899         SLIBPREF="cyg"
3900         SLIBSUF=".dll"
3901         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3902         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3903         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3904         SLIB_INSTALL_LINKS=
3905         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3906         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3907         objformat="win32"
3908         enable dos_paths
3909         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3910         ;;
3911     *-dos|freedos|opendos)
3912         network_extralibs="-lsocket"
3913         objformat="coff"
3914         enable dos_paths
3915         add_cppflags -U__STRICT_ANSI__
3916         ;;
3917     linux)
3918         enable dv1394
3919         ;;
3920     irix*)
3921         target_os=irix
3922         ranlib="echo ignoring ranlib"
3923         ;;
3924     os/2*)
3925         strip="lxlite -CS"
3926         ln_s="cp -f"
3927         objformat="aout"
3928         add_cppflags -D_GNU_SOURCE
3929         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3930         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3931         LIBSUF="_s.a"
3932         SLIBPREF=""
3933         SLIBSUF=".dll"
3934         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3935         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3936         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3937             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3938             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3939             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3940             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3941             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3942         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3943             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3944         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3945         enable dos_paths
3946         enable_weak os2threads
3947         ;;
3948     gnu/kfreebsd)
3949         add_cppflags -D_BSD_SOURCE
3950         ;;
3951     gnu)
3952         ;;
3953     qnx)
3954         add_cppflags -D_QNX_SOURCE
3955         network_extralibs="-lsocket"
3956         ;;
3957     symbian)
3958         SLIBSUF=".dll"
3959         enable dos_paths
3960         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3961         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3962         add_ldflags -Wl,--target1-abs,--no-undefined \
3963                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3964                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3965         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3966                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3967                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3968         ;;
3969     osf1)
3970         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3971         ;;
3972     minix)
3973         ;;
3974     plan9)
3975         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3976                      -D_REENTRANT_SOURCE        \
3977                      -D_RESEARCH_SOURCE         \
3978                      -DFD_SETSIZE=96            \
3979                      -DHAVE_SOCK_OPTS
3980         add_compat strtod.o strtod=avpriv_strtod
3981         network_extralibs='-lbsd'
3982         exeobjs=compat/plan9/main.o
3983         disable ffserver
3984         cp_f='cp'
3985         ;;
3986     none)
3987         ;;
3988     *)
3989         die "Unknown OS '$target_os'."
3990         ;;
3991 esac
3992
3993 # determine libc flavour
3994
3995 probe_libc(){
3996     pfx=$1
3997     pfx_no_=${pfx%_}
3998     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3999     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4000         eval ${pfx}libc_type=uclibc
4001         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4002     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4003         eval ${pfx}libc_type=glibc
4004         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4005     # MinGW headers can be installed on Cygwin, so check for newlib first.
4006     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4007         eval ${pfx}libc_type=newlib
4008         add_${pfx}cppflags -U__STRICT_ANSI__
4009     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4010     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4011         eval ${pfx}libc_type=mingw64
4012         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4013             add_compat msvcrt/snprintf.o
4014             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4015         fi
4016         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4017         eval test \$${pfx_no_}cc_type = "gcc" &&
4018             add_${pfx}cppflags -D__printf__=__gnu_printf__
4019     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4020          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4021         eval ${pfx}libc_type=mingw32
4022         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4023             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4024             die "ERROR: MinGW32 runtime version must be >= 3.15."
4025         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4026         eval test \$${pfx_no_}cc_type = "gcc" &&
4027             add_${pfx}cppflags -D__printf__=__gnu_printf__
4028     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4029         eval ${pfx}libc_type=msvcrt
4030         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4031         # 0x601 by default unless something else is set by the user.
4032         # This can easily lead to us detecting functions only present
4033         # in such new versions and producing binaries requiring windows 7.0.
4034         # Therefore explicitly set the default to XP unless the user has
4035         # set something else on the command line.
4036         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4037             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4038     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4039         eval ${pfx}libc_type=klibc
4040     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4041         eval ${pfx}libc_type=bionic
4042     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4043         eval ${pfx}libc_type=solaris
4044         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4045     fi
4046 }
4047
4048 probe_libc
4049 test -n "$libc_type" && enable libc_$libc_type
4050 probe_libc host_
4051 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4052
4053 case $libc_type in
4054     bionic)
4055         add_compat strtod.o strtod=avpriv_strtod
4056         ;;
4057     msvcrt)
4058         add_compat strtod.o strtod=avpriv_strtod
4059         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4060                                      _snprintf=avpriv_snprintf  \
4061                                      vsnprintf=avpriv_vsnprintf
4062         ;;
4063 esac
4064
4065 # hacks for compiler/libc/os combinations
4066
4067 if enabled_all tms470 libc_glibc; then
4068     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4069     add_cppflags -D__USER_LABEL_PREFIX__=
4070     add_cppflags -D__builtin_memset=memset
4071     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4072     add_cflags   -pds=48    # incompatible redefinition of macro
4073 fi
4074
4075 if enabled_all ccc libc_glibc; then
4076     add_ldflags -Wl,-z,now  # calls to libots crash without this
4077 fi
4078
4079 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4080     add_cppflags '-I\$(SRC_PATH)/compat/float'
4081
4082 esc(){
4083     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4084 }
4085
4086 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4087
4088 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4089
4090 set_default $PATHS_LIST
4091 set_default nm
4092
4093 # we need to build at least one lib type
4094 if ! enabled_any static shared; then
4095     cat <<EOF
4096 At least one library type must be built.
4097 Specify --enable-static to build the static libraries or --enable-shared to
4098 build the shared libraries as well. To only build the shared libraries specify
4099 --disable-static in addition to --enable-shared.
4100 EOF
4101     exit 1;
4102 fi
4103
4104 # backward compatibility layer for incompatible_libav/fork_abi
4105 enabled incompatible_fork_abi  && enable incompatible_libav_abi
4106 enabled incompatible_libav_abi && enable incompatible_fork_abi
4107
4108 die_license_disabled() {
4109     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4110 }
4111
4112 die_license_disabled_gpl() {
4113     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4114 }
4115
4116 die_license_disabled gpl frei0r
4117 die_license_disabled gpl libcdio
4118 die_license_disabled gpl libutvideo
4119 die_license_disabled gpl libvidstab
4120 die_license_disabled gpl libx264
4121 die_license_disabled gpl libx265
4122 die_license_disabled gpl libxavs
4123 die_license_disabled gpl libxvid
4124 die_license_disabled gpl libzvbi
4125 die_license_disabled gpl x11grab
4126
4127 die_license_disabled nonfree libaacplus
4128 die_license_disabled nonfree libfaac
4129 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4130 enabled gpl && die_license_disabled_gpl nonfree openssl
4131
4132 die_license_disabled version3 libopencore_amrnb
4133 die_license_disabled version3 libopencore_amrwb
4134 die_license_disabled version3 libvo_aacenc
4135 die_license_disabled version3 libvo_amrwbenc
4136
4137 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4138
4139 disabled optimizations || check_cflags -fomit-frame-pointer
4140
4141 enable_weak_pic() {
4142     disabled pic && return
4143     enable pic
4144     add_cppflags -DPIC
4145     case "$target_os" in
4146     mingw*|cygwin*)
4147         ;;
4148     *)
4149         add_cflags -fPIC
4150         ;;
4151     esac
4152     add_asflags  -fPIC
4153 }
4154
4155 enabled pic && enable_weak_pic
4156
4157 check_cc <<EOF || die "Symbol mangling check failed."
4158 int ff_extern;
4159 EOF
4160 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4161 extern_prefix=${sym%%ff_extern*}
4162
4163 check_cc <<EOF && enable_weak inline_asm
4164 void foo(void) { __asm__ volatile ("" ::); }
4165 EOF
4166
4167 _restrict=
4168 for restrict_keyword in restrict __restrict__ __restrict; do
4169     check_cc <<EOF && _restrict=$restrict_keyword && break
4170 void foo(char * $restrict_keyword p);
4171 EOF
4172 done
4173
4174 check_cc <<EOF && enable pragma_deprecated
4175 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4176 EOF
4177
4178 check_cc <<EOF && enable attribute_packed
4179 struct { int x; } __attribute__((packed)) x;
4180 EOF
4181
4182 check_cc <<EOF && enable attribute_may_alias
4183 union { int x; } __attribute__((may_alias)) x;
4184 EOF
4185
4186 check_cc <<EOF || die "endian test failed"
4187 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4188 EOF
4189 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4190
4191 check_inline_asm inline_asm_labels '"1:\n"'
4192
4193 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4194
4195 if enabled aarch64; then
4196     # internal assembler in clang 3.3 does not support this instruction
4197     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4198     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4199
4200     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4201
4202 elif enabled alpha; then
4203
4204     check_cflags -mieee
4205
4206 elif enabled arm; then
4207
4208     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4209 float func(float a, float b){ return a+b; }
4210 EOF
4211
4212     enabled thumb && check_cflags -mthumb || check_cflags -marm
4213     nogas=die
4214
4215     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4216         enable vfp_args
4217     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4218         case "${cross_prefix:-$cc}" in
4219             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4220             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4221 __asm__ (".eabi_attribute 28, 1");
4222 int main(void) { return 0; }
4223 EOF
4224         esac
4225         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4226     fi
4227
4228     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4229     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4230     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4231     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4232     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4233     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4234
4235     [ $target_os = linux ] ||
4236         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4237             $ARCH_EXT_LIST_ARM
4238
4239     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4240
4241     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4242
4243 elif enabled mips; then
4244
4245     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4246     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4247      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4248     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4249      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4250     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4251      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4252     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4253      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4254
4255 elif enabled parisc; then
4256
4257     if enabled gcc; then
4258         case $($cc -dumpversion) in
4259             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4260         esac
4261     fi
4262
4263 elif enabled ppc; then
4264
4265     enable local_aligned_8 local_aligned_16
4266
4267     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4268     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4269     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4270     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4271
4272     # AltiVec flags: The FSF version of GCC differs from the Apple version
4273     if enabled altivec; then
4274         if ! enabled_any pic ppc64; then
4275             nogas=warn
4276         fi
4277         check_cflags -maltivec -mabi=altivec &&
4278         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4279         check_cflags -faltivec
4280
4281         # check if our compiler supports Motorola AltiVec C API
4282         check_cc <<EOF || disable altivec
4283 $inc_altivec_h
4284 int main(void) {
4285     vector signed int v1 = (vector signed int) { 0 };
4286     vector signed int v2 = (vector signed int) { 1 };
4287     v1 = vec_add(v1, v2);
4288     return 0;
4289 }
4290 EOF
4291
4292         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4293     fi
4294
4295 elif enabled x86; then
4296
4297     check_builtin rdtsc    intrin.h   "__rdtsc()"
4298     check_builtin mm_empty mmintrin.h "_mm_empty()"
4299
4300     enable local_aligned_8 local_aligned_16
4301
4302     # check whether EBP is available on x86
4303     # As 'i' is stored on the stack, this program will crash
4304     # if the base pointer is used to access it because the
4305     # base pointer is cleared in the inline assembly code.
4306     check_exec_crash <<EOF && enable ebp_available
4307 volatile int i=0;
4308 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4309 return i;
4310 EOF
4311
4312     # check whether EBX is available on x86
4313     check_inline_asm ebx_available '""::"b"(0)' &&
4314         check_inline_asm ebx_available '"":::"%ebx"'
4315
4316     # check whether xmm clobbers are supported
4317     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4318
4319     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4320         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4321
4322     # check whether binutils is new enough to compile SSSE3/MMXEXT
4323     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4324     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4325
4326     if ! disabled_any asm mmx yasm; then
4327         if check_cmd $yasmexe --version; then
4328             enabled x86_64 && yasm_extra="-m amd64"
4329             yasm_debug="-g dwarf2"
4330         elif check_cmd nasm -v; then
4331             yasmexe=nasm
4332             yasm_debug="-g -F dwarf"
4333             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4334         fi
4335
4336         YASMFLAGS="-f $objformat $yasm_extra"
4337         enabled pic               && append YASMFLAGS "-DPIC"
4338         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4339         case "$objformat" in
4340             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4341         esac
4342
4343         check_yasm "movbe ecx, [5]" && enable yasm ||
4344             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4345         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4346         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4347         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4348         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4349         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4350         check_yasm "CPU amdnop" || disable cpunop
4351     fi
4352
4353     case "$cpu" in
4354         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4355             disable fast_clz
4356         ;;
4357     esac
4358
4359 fi
4360
4361 if enabled asm; then
4362     as=${gas:=$as}
4363     check_as <<EOF && enable gnu_as || \
4364         $nogas "GNU assembler not found, install gas-preprocessor"
4365 .macro m n
4366 \n: .int 0
4367 .endm
4368 m x
4369 EOF
4370 fi
4371
4372 check_ldflags -Wl,--as-needed
4373
4374 if check_func dlopen; then
4375     ldl=
4376 elif check_func dlopen -ldl; then
4377     ldl=-ldl
4378 fi
4379
4380 if ! disabled network; then
4381     check_func getaddrinfo $network_extralibs
4382     check_func getservbyport $network_extralibs
4383     check_func inet_aton $network_extralibs
4384
4385     check_type netdb.h "struct addrinfo"
4386     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4387     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4388     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4389     check_type poll.h "struct pollfd"
4390     check_type netinet/sctp.h "struct sctp_event_subscribe"
4391     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4392     check_type netinet/in.h "struct sockaddr_in6"
4393     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4394     check_type "sys/types.h sys/socket.h" socklen_t
4395
4396     # Prefer arpa/inet.h over winsock2
4397     if check_header arpa/inet.h ; then
4398         check_func closesocket
4399     elif check_header winsock2.h ; then
4400         check_func_headers winsock2.h closesocket -lws2 &&
4401             network_extralibs="-lws2" ||
4402         { check_func_headers winsock2.h closesocket -lws2_32 &&
4403             network_extralibs="-lws2_32"; } || disable winsock2_h network
4404         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4405
4406         check_type ws2tcpip.h socklen_t
4407         check_type ws2tcpip.h "struct addrinfo"
4408         check_type ws2tcpip.h "struct group_source_req"
4409         check_type ws2tcpip.h "struct ip_mreq_source"
4410         check_type ws2tcpip.h "struct ipv6_mreq"
4411         check_type winsock2.h "struct pollfd"
4412         check_struct winsock2.h "struct sockaddr" sa_len
4413         check_type ws2tcpip.h "struct sockaddr_in6"
4414         check_type ws2tcpip.h "struct sockaddr_storage"
4415     else
4416         disable network
4417     fi
4418 fi
4419
4420 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4421 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4422 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4423 check_builtin sarestart signal.h "SA_RESTART"
4424 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4425
4426 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4427 check_func  ${malloc_prefix}memalign            && enable memalign
4428 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4429
4430 check_func  access
4431 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4432 check_func  fcntl
4433 check_func  fork
4434 check_func  gethrtime
4435 check_func  getopt
4436 check_func  getrusage
4437 check_func  gettimeofday
4438 check_func  isatty
4439 check_func  localtime_r
4440 check_func  mach_absolute_time
4441 check_func  mkstemp
4442 check_func  mmap
4443 check_func  mprotect
4444 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4445 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4446 check_func  sched_getaffinity
4447 check_func  setrlimit
4448 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4449 check_func  strerror_r
4450 check_func  sysconf
4451 check_func  sysctl
4452 check_func  usleep
4453
4454 check_func_headers conio.h kbhit
4455 check_func_headers io.h setmode
4456 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4457 check_func_headers stdlib.h getenv
4458
4459 check_func_headers windows.h GetProcessAffinityMask
4460 check_func_headers windows.h GetProcessTimes
4461 check_func_headers windows.h GetSystemTimeAsFileTime
4462 check_func_headers windows.h MapViewOfFile
4463 check_func_headers windows.h PeekNamedPipe
4464 check_func_headers windows.h SetConsoleTextAttribute
4465 check_func_headers windows.h Sleep
4466 check_func_headers windows.h VirtualAlloc
4467 check_func_headers glob.h glob
4468 enabled xlib &&
4469     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4470
4471 check_header cl/cl.h
4472 check_header direct.h
4473 check_header dlfcn.h
4474 check_header dxva.h
4475 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4476 check_header io.h
4477 check_header libcrystalhd/libcrystalhd_if.h
4478 check_header mach/mach_time.h
4479 check_header malloc.h
4480 check_header poll.h
4481 check_header sys/mman.h
4482 check_header sys/param.h
4483 check_header sys/resource.h
4484 check_header sys/select.h
4485 check_header sys/time.h
4486 check_header sys/un.h
4487 check_header termios.h
4488 check_header unistd.h
4489 check_header vdpau/vdpau.h
4490 check_header vdpau/vdpau_x11.h
4491 check_header VideoDecodeAcceleration/VDADecoder.h
4492 check_header windows.h
4493 check_header X11/extensions/XvMClib.h
4494 check_header asm/types.h
4495
4496 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4497 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4498 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4499
4500 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4501
4502 if ! disabled w32threads && ! enabled pthreads; then
4503     check_func_headers "windows.h process.h" _beginthreadex &&
4504         enable w32threads || disable w32threads
4505 fi
4506
4507 # check for some common methods of building with pthread support
4508 # do this before the optional library checks as some of them require pthreads
4509 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4510     enable pthreads
4511     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4512         add_cflags -pthread
4513         add_extralibs -pthread
4514     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4515         add_cflags -pthreads
4516         add_extralibs -pthreads
4517     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4518         add_extralibs -lpthreadGC2
4519     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4520         :
4521     elif ! check_func pthread_join && ! check_func pthread_create; then
4522         disable pthreads
4523     fi
4524     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4525 fi
4526
4527
4528 if enabled pthreads; then
4529   check_func pthread_cancel
4530 fi
4531
4532 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4533 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4534
4535 check_lib math.h sin -lm && LIBM="-lm"
4536 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4537
4538 atan2f_args=2
4539 ldexpf_args=2
4540 powf_args=2
4541
4542 for func in $MATH_FUNCS; do
4543     eval check_mathfunc $func \${${func}_args:-1}
4544 done
4545
4546 # these are off by default, so fail if requested and not available
4547 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4548                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4549                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4550 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4551 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4552 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4553 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4554 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4555 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4556 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4557 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4558 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4559 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4560                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4561                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4562 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4563 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4564 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4565 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"
4566 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4567 enabled libfreetype       && require_libfreetype
4568 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4569 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4570                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4571                                done || die "ERROR: libgsm not found"; }
4572 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4573 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4574 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4575 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4576 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4577 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4578 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4579 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4580                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4581                                die "ERROR: libopenjpeg not found"; }
4582 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4583 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4584 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4585 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4586 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4587 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4588 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4589 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4590 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4591 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4592     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4593     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4594 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4595 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4596                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4597                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4598 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4599 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4600 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4601 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4602 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4603 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4604 enabled libvpx            && {
4605     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4606                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4607     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 ||
4608                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4609     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4610     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; } }
4611 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4612 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4613 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4614                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4615                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4616 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4617                              { check_cpp_condition x265.h "X265_BUILD >= 9" ||
4618                                die "ERROR: libx265 version must be >= 9."; }
4619 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4620 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4621 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4622 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4623 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4624                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4625                                die "ERROR: openal not found"; } &&
4626                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4627                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4628 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4629                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4630                                die "ERROR: opencl not found"; } &&
4631                              { ! enabled_any w32threads os2threads ||
4632                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4633                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4634                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4635                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4636 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4637                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4638                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4639                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4640                                die "ERROR: opengl not found."
4641                              }
4642 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4643                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4644                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4645                                die "ERROR: openssl not found"; }
4646
4647 if enabled gnutls; then
4648     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4649     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4650 fi
4651
4652 # libdc1394 check
4653 if enabled libdc1394; then
4654     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4655         enable libdc1394_2; } ||
4656     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4657         enable libdc1394_1; } ||
4658     die "ERROR: No version of libdc1394 found "
4659 fi
4660
4661 SDL_CONFIG="${cross_prefix}sdl-config"
4662 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4663     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4664     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4665     enable sdl
4666 else
4667   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4668     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4669     sdl_libs=$("${SDL_CONFIG}" --libs)
4670     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4671     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4672     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4673     enable sdl
4674   fi
4675 fi
4676 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4677
4678 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4679 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4680 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4681 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4682 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4683
4684 check_header linux/fb.h
4685 check_header linux/videodev.h
4686 check_header linux/videodev2.h
4687 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4688
4689 check_header sys/videoio.h
4690
4691 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4692 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4693 # w32api 3.12 had it defined wrong
4694 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4695
4696 check_type "dshow.h" IBaseFilter
4697
4698 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4699 { check_header dev/bktr/ioctl_meteor.h &&
4700   check_header dev/bktr/ioctl_bt848.h; } ||
4701 { check_header machine/ioctl_meteor.h &&
4702   check_header machine/ioctl_bt848.h; } ||
4703 { check_header dev/video/meteor/ioctl_meteor.h &&
4704   check_header dev/video/bktr/ioctl_bt848.h; } ||
4705 check_header dev/ic/bt8xx.h
4706
4707 check_header sndio.h
4708 if check_struct sys/soundcard.h audio_buf_info bytes; then
4709     enable_safe sys/soundcard.h
4710 else
4711     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4712     #include <sys/soundcard.h>
4713     audio_buf_info abc;
4714 EOF
4715 fi
4716 check_header soundcard.h
4717
4718 enabled_any alsa_indev alsa_outdev &&
4719     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4720
4721 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4722     check_func jack_port_get_latency_range -ljack
4723
4724 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4725
4726 if enabled libcdio; then
4727     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4728     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4729     die "ERROR: libcdio-paranoia not found"
4730 fi
4731
4732 enabled xlib &&
4733     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4734
4735 enabled x11grab                                           &&
4736 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4737 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4738 { enabled xlib || die "ERROR: Xlib not found"; }
4739
4740 enabled vaapi &&
4741     check_lib va/va.h vaInitialize -lva ||
4742     disable vaapi
4743
4744 enabled vdpau &&
4745     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4746     disable vdpau
4747
4748 enabled vdpau && enabled xlib &&
4749     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4750     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4751     enable vdpau_x11
4752
4753 # Funny iconv installations are not unusual, so check it after all flags have been set
4754 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4755
4756 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4757
4758 # add some useful compiler flags if supported
4759 check_cflags -Wdeclaration-after-statement
4760 check_cflags -Wall
4761 check_cflags -Wdisabled-optimization
4762 check_cflags -Wpointer-arith
4763 check_cflags -Wredundant-decls
4764 check_cflags -Wwrite-strings
4765 check_cflags -Wtype-limits
4766 check_cflags -Wundef
4767 check_cflags -Wmissing-prototypes
4768 check_cflags -Wno-pointer-to-int-cast
4769 check_cflags -Wstrict-prototypes
4770 enabled extra_warnings && check_cflags -Winline
4771
4772 check_disable_warning(){
4773     warning_flag=-W${1#-Wno-}
4774     test_cflags $warning_flag && add_cflags $1
4775 }
4776
4777 check_disable_warning -Wno-parentheses
4778 check_disable_warning -Wno-switch
4779 check_disable_warning -Wno-format-zero-length
4780 check_disable_warning -Wno-pointer-sign
4781
4782 # add some linker flags
4783 check_ldflags -Wl,--warn-common
4784 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4785 enabled rpath && add_ldflags -Wl,-rpath=$libdir
4786 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4787
4788 # add some strip flags
4789 # -wN '..@*' is more selective than -x, but not available everywhere.
4790 check_stripflags -wN \'..@*\' || check_stripflags -x
4791
4792 enabled neon_clobber_test &&
4793     check_ldflags -Wl,--wrap,avcodec_open2              \
4794                   -Wl,--wrap,avcodec_decode_audio4      \
4795                   -Wl,--wrap,avcodec_decode_video2      \
4796                   -Wl,--wrap,avcodec_decode_subtitle2   \
4797                   -Wl,--wrap,avcodec_encode_audio2      \
4798                   -Wl,--wrap,avcodec_encode_video2      \
4799                   -Wl,--wrap,avcodec_encode_subtitle    \
4800                   -Wl,--wrap,swr_convert                \
4801                   -Wl,--wrap,avresample_convert ||
4802     disable neon_clobber_test
4803
4804 enabled xmm_clobber_test &&
4805     check_ldflags -Wl,--wrap,avcodec_open2              \
4806                   -Wl,--wrap,avcodec_decode_audio4      \
4807                   -Wl,--wrap,avcodec_decode_video2      \
4808                   -Wl,--wrap,avcodec_decode_subtitle2   \
4809                   -Wl,--wrap,avcodec_encode_audio2      \
4810                   -Wl,--wrap,avcodec_encode_video       \
4811                   -Wl,--wrap,avcodec_encode_video2      \
4812                   -Wl,--wrap,avcodec_encode_subtitle    \
4813                   -Wl,--wrap,swr_convert                \
4814                   -Wl,--wrap,avresample_convert         \
4815                   -Wl,--wrap,sws_scale ||
4816     disable xmm_clobber_test
4817
4818 echo "X{};" > $TMPV
4819 if test_ldflags -Wl,--version-script,$TMPV; then
4820     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4821     check_cc <<EOF && enable symver_asm_label
4822 void ff_foo(void) __asm__ ("av_foo@VERSION");
4823 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4824 EOF
4825     check_cc <<EOF && enable symver_gnu_asm
4826 __asm__(".symver ff_foo,av_foo@VERSION");
4827 void ff_foo(void) {}
4828 EOF
4829 fi
4830
4831 if [ -z "$optflags" ]; then
4832     if enabled small; then
4833         optflags=$cflags_size
4834     elif enabled optimizations; then
4835         optflags=$cflags_speed
4836     else
4837         optflags=$cflags_noopt
4838     fi
4839 fi
4840
4841 check_optflags(){
4842     check_cflags "$@"
4843     enabled lto && check_ldflags "$@"
4844 }
4845
4846
4847 if enabled lto; then
4848     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4849     check_cflags  -flto
4850     check_ldflags -flto $cpuflags
4851 fi
4852
4853 check_optflags $optflags
4854 check_optflags -fno-math-errno
4855 check_optflags -fno-signed-zeros
4856
4857 enabled ftrapv && check_cflags -ftrapv
4858
4859 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4860 int x;
4861 EOF
4862
4863
4864 if enabled icc; then
4865     # Just warnings, no remarks
4866     check_cflags -w1
4867     # -wd: Disable following warnings
4868     # 144, 167, 556: -Wno-pointer-sign
4869     # 188: enumerated type mixed with another type
4870     # 1292: attribute "foo" ignored
4871     # 1419: external declaration in primary source file
4872     # 10006: ignoring unknown option -fno-signed-zeros
4873     # 10148: ignoring unknown option -Wno-parentheses
4874     # 10156: ignoring option '-W'; no argument required
4875     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4876     # 11030: Warning unknown option --as-needed
4877     # 10156: ignoring option '-export'; no argument required
4878     check_ldflags -wd10156,11030
4879     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4880     enable ebp_available
4881     if enabled x86_32; then
4882         icc_version=$($cc -dumpversion)
4883         test ${icc_version%%.*} -ge 11 &&
4884             check_cflags -falign-stack=maintain-16-byte ||
4885             disable aligned_stack
4886     fi
4887 elif enabled ccc; then
4888     # disable some annoying warnings
4889     add_cflags -msg_disable bitnotint
4890     add_cflags -msg_disable mixfuncvoid
4891     add_cflags -msg_disable nonstandcast
4892     add_cflags -msg_disable unsupieee
4893 elif enabled gcc; then
4894     check_optflags -fno-tree-vectorize
4895     check_cflags -Werror=implicit-function-declaration
4896     check_cflags -Werror=missing-prototypes
4897     check_cflags -Werror=return-type
4898     check_cflags -Werror=vla
4899     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4900 elif enabled llvm_gcc; then
4901     check_cflags -mllvm -stack-alignment=16
4902 elif enabled clang; then
4903     check_cflags -mllvm -stack-alignment=16
4904     check_cflags -Qunused-arguments
4905     check_cflags -Werror=implicit-function-declaration
4906     check_cflags -Werror=missing-prototypes
4907     check_cflags -Werror=return-type
4908 elif enabled cparser; then
4909     add_cflags -Wno-missing-variable-declarations
4910     add_cflags -Wno-empty-statement
4911 elif enabled armcc; then
4912     # 2523: use of inline assembler is deprecated
4913     add_cflags -W${armcc_opt},--diag_suppress=2523
4914     add_cflags -W${armcc_opt},--diag_suppress=1207
4915     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4916     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4917     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4918     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4919 elif enabled tms470; then
4920     add_cflags -pds=824 -pds=837
4921     disable inline_asm
4922 elif enabled pathscale; then
4923     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4924 elif enabled_any msvc icl; then
4925     enabled x86_32 && disable aligned_stack
4926     enabled_all x86_32 debug && add_cflags -Oy-
4927     enabled debug && add_ldflags -debug
4928     enable pragma_deprecated
4929     if enabled icl; then
4930         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4931         # (correctly) on icl 13.x.
4932         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4933             add_cflags -Qansi-alias
4934         # icl will pass the inline asm tests but inline asm is currently
4935         # not supported (build will fail)
4936         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4937         disable inline_asm
4938     fi
4939 fi
4940
4941 case $as_type in
4942     clang)
4943         add_asflags -Qunused-arguments
4944     ;;
4945 esac
4946
4947 case $ld_type in
4948     clang)
4949         check_ldflags -Qunused-arguments
4950     ;;
4951 esac
4952
4953 case $target_os in
4954     osf1)
4955         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4956     ;;
4957     plan9)
4958         add_cppflags -Dmain=plan9_main
4959     ;;
4960 esac
4961
4962 enable frame_thread_encoder
4963
4964 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4965
4966 check_deps $CONFIG_LIST       \
4967            $CONFIG_EXTRA      \
4968            $HAVE_LIST         \
4969            $ALL_COMPONENTS    \
4970
4971 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"
4972
4973
4974 if test $target_os = "haiku"; then
4975     disable memalign
4976     disable posix_memalign
4977 fi
4978
4979 ! enabled_any memalign posix_memalign aligned_malloc &&
4980     enabled_any $need_memalign && enable memalign_hack
4981
4982 # add_dep lib dep
4983 # -> enable ${lib}_deps_${dep}
4984 # -> add $dep to ${lib}_deps only once
4985 add_dep() {
4986     lib=$1
4987     dep=$2
4988     enabled "${lib}_deps_${dep}" && return 0
4989     enable  "${lib}_deps_${dep}"
4990     prepend "${lib}_deps" $dep
4991 }
4992
4993 # merge deps lib components
4994 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4995 merge_deps() {
4996     lib=$1
4997     shift
4998     for comp in $*; do
4999         enabled $comp || continue
5000         eval "dep=\"\$${comp}_deps\""
5001         for d in $dep; do
5002             add_dep $lib $d
5003         done
5004     done
5005 }
5006
5007 merge_deps libavfilter $FILTER_LIST
5008
5009 for thread in $THREADS_LIST; do
5010     if enabled $thread; then
5011         test -n "$thread_type" &&
5012             die "ERROR: Only one thread type must be selected." ||
5013             thread_type="$thread"
5014     fi
5015 done
5016
5017 echo "install prefix            $prefix"
5018 echo "source path               $source_path"
5019 echo "C compiler                $cc"
5020 echo "C library                 $libc_type"
5021 if test "$host_cc" != "$cc"; then
5022     echo "host C compiler           $host_cc"
5023     echo "host C library            $host_libc_type"
5024 fi
5025 echo "ARCH                      $arch ($cpu)"
5026 if test "$build_suffix" != ""; then
5027     echo "build suffix              $build_suffix"
5028 fi
5029 if test "$progs_suffix" != ""; then
5030     echo "progs suffix              $progs_suffix"
5031 fi
5032 if test "$extra_version" != ""; then
5033     echo "version string suffix     $extra_version"
5034 fi
5035 echo "big-endian                ${bigendian-no}"
5036 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5037 if enabled x86; then
5038     echo "${yasmexe}                      ${yasm-no}"
5039     echo "MMX enabled               ${mmx-no}"
5040     echo "MMXEXT enabled            ${mmxext-no}"
5041     echo "3DNow! enabled            ${amd3dnow-no}"
5042     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5043     echo "SSE enabled               ${sse-no}"
5044     echo "SSSE3 enabled             ${ssse3-no}"
5045     echo "AVX enabled               ${avx-no}"
5046     echo "XOP enabled               ${xop-no}"
5047     echo "FMA3 enabled              ${fma3-no}"
5048     echo "FMA4 enabled              ${fma4-no}"
5049     echo "i686 features enabled     ${i686-no}"
5050     echo "CMOV is fast              ${fast_cmov-no}"
5051     echo "EBX available             ${ebx_available-no}"
5052     echo "EBP available             ${ebp_available-no}"
5053 fi
5054 if enabled aarch64; then
5055     echo "NEON enabled              ${neon-no}"
5056     echo "VFP enabled               ${vfp-no}"
5057 fi
5058 if enabled arm; then
5059     echo "ARMv5TE enabled           ${armv5te-no}"
5060     echo "ARMv6 enabled             ${armv6-no}"
5061     echo "ARMv6T2 enabled           ${armv6t2-no}"
5062     echo "VFP enabled               ${vfp-no}"
5063     echo "NEON enabled              ${neon-no}"
5064     echo "THUMB enabled             ${thumb-no}"
5065 fi
5066 if enabled mips; then
5067     echo "MIPS FPU enabled          ${mipsfpu-no}"
5068     echo "MIPS32R2 enabled          ${mips32r2-no}"
5069     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5070     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5071 fi
5072 if enabled ppc; then
5073     echo "AltiVec enabled           ${altivec-no}"
5074     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5075     echo "dcbzl available           ${dcbzl-no}"
5076 fi
5077 echo "debug symbols             ${debug-no}"
5078 echo "strip symbols             ${stripping-no}"
5079 echo "optimize for size         ${small-no}"
5080 echo "optimizations             ${optimizations-no}"
5081 echo "static                    ${static-no}"
5082 echo "shared                    ${shared-no}"
5083 echo "postprocessing support    ${postproc-no}"
5084 echo "new filter support        ${avfilter-no}"
5085 echo "network support           ${network-no}"
5086 echo "threading support         ${thread_type-no}"
5087 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5088 echo "SDL support               ${sdl-no}"
5089 echo "opencl enabled            ${opencl-no}"
5090 echo "libzvbi enabled           ${libzvbi-no}"
5091 echo "texi2html enabled         ${texi2html-no}"
5092 echo "perl enabled              ${perl-no}"
5093 echo "pod2man enabled           ${pod2man-no}"
5094 echo "makeinfo enabled          ${makeinfo-no}"
5095 test -n "$random_seed" &&
5096     echo "random seed               ${random_seed}"
5097 echo
5098
5099 echo "External libraries:"
5100 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5101 echo
5102
5103 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5104     echo "Enabled ${type}s:"
5105     eval list=\$$(toupper $type)_LIST
5106     print_enabled '_*' $list | print_3_columns
5107     echo
5108 done
5109
5110 license="LGPL version 2.1 or later"
5111 if enabled nonfree; then
5112     license="nonfree and unredistributable"
5113 elif enabled gplv3; then
5114     license="GPL version 3 or later"
5115 elif enabled lgplv3; then
5116     license="LGPL version 3 or later"
5117 elif enabled gpl; then
5118     license="GPL version 2 or later"
5119 fi
5120
5121 echo "License: $license"
5122
5123 echo "Creating config.mak, config.h, and doc/config.texi..."
5124
5125 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5126
5127 enabled stripping || strip="echo skipping strip"
5128
5129 config_files="$TMPH config.mak doc/config.texi"
5130
5131 cat > config.mak <<EOF
5132 # Automatically generated by configure - do not modify!
5133 ifndef FFMPEG_CONFIG_MAK
5134 FFMPEG_CONFIG_MAK=1
5135 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5136 prefix=$prefix
5137 LIBDIR=\$(DESTDIR)$libdir
5138 SHLIBDIR=\$(DESTDIR)$shlibdir
5139 INCDIR=\$(DESTDIR)$incdir
5140 BINDIR=\$(DESTDIR)$bindir
5141 DATADIR=\$(DESTDIR)$datadir
5142 DOCDIR=\$(DESTDIR)$docdir
5143 MANDIR=\$(DESTDIR)$mandir
5144 SRC_PATH=$source_path
5145 ifndef MAIN_MAKEFILE
5146 SRC_PATH:=\$(SRC_PATH:.%=..%)
5147 endif
5148 CC_IDENT=$cc_ident
5149 ARCH=$arch
5150 CC=$cc
5151 CXX=$cxx
5152 AS=$as
5153 LD=$ld
5154 DEPCC=$dep_cc
5155 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5156 DEPAS=$as
5157 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5158 YASM=$yasmexe
5159 DEPYASM=$yasmexe
5160 AR=$ar
5161 ARFLAGS=$arflags
5162 AR_O=$ar_o
5163 RANLIB=$ranlib
5164 STRIP=$strip
5165 CP=cp -p
5166 LN_S=$ln_s
5167 CPPFLAGS=$CPPFLAGS
5168 CFLAGS=$CFLAGS
5169 CXXFLAGS=$CXXFLAGS
5170 ASFLAGS=$ASFLAGS
5171 AS_C=$AS_C
5172 AS_O=$AS_O
5173 CC_C=$CC_C
5174 CC_E=$CC_E
5175 CC_O=$CC_O
5176 CXX_C=$CXX_C
5177 CXX_O=$CXX_O
5178 LD_O=$LD_O
5179 LD_LIB=$LD_LIB
5180 LD_PATH=$LD_PATH
5181 DLLTOOL=$dlltool
5182 WINDRES=$windres
5183 DEPWINDRES=$dep_cc
5184 LDFLAGS=$LDFLAGS
5185 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5186 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5187 YASMFLAGS=$YASMFLAGS
5188 BUILDSUF=$build_suffix
5189 PROGSSUF=$progs_suffix
5190 FULLNAME=$FULLNAME
5191 LIBPREF=$LIBPREF
5192 LIBSUF=$LIBSUF
5193 LIBNAME=$LIBNAME
5194 SLIBPREF=$SLIBPREF
5195 SLIBSUF=$SLIBSUF
5196 EXESUF=$EXESUF
5197 EXTRA_VERSION=$extra_version
5198 CCDEP=$CCDEP
5199 CXXDEP=$CXXDEP
5200 CCDEP_FLAGS=$CCDEP_FLAGS
5201 ASDEP=$ASDEP
5202 ASDEP_FLAGS=$ASDEP_FLAGS
5203 CC_DEPFLAGS=$CC_DEPFLAGS
5204 AS_DEPFLAGS=$AS_DEPFLAGS
5205 HOSTCC=$host_cc
5206 HOSTLD=$host_ld
5207 HOSTCFLAGS=$host_cflags
5208 HOSTCPPFLAGS=$host_cppflags
5209 HOSTEXESUF=$HOSTEXESUF
5210 HOSTLDFLAGS=$host_ldflags
5211 HOSTLIBS=$host_libs
5212 DEPHOSTCC=$host_cc
5213 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5214 HOSTCCDEP=$HOSTCCDEP
5215 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5216 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5217 HOSTCC_C=$HOSTCC_C
5218 HOSTCC_O=$HOSTCC_O
5219 HOSTLD_O=$HOSTLD_O
5220 TARGET_EXEC=$target_exec $target_exec_args
5221 TARGET_PATH=$target_path
5222 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5223 CFLAGS-ffplay=$sdl_cflags
5224 ZLIB=$($ldflags_filter -lz)
5225 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5226 EXTRALIBS=$extralibs
5227 COMPAT_OBJS=$compat_objs
5228 EXEOBJS=$exeobjs
5229 INSTALL=$install
5230 LIBTARGET=${LIBTARGET}
5231 SLIBNAME=${SLIBNAME}
5232 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5233 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5234 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5235 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5236 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5237 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5238 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5239 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5240 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5241 NOREDZONE_FLAGS=$noredzone_flags
5242 EOF
5243
5244 get_version(){
5245     lcname=lib${1}
5246     name=$(toupper $lcname)
5247     file=$source_path/$lcname/version.h
5248     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5249     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5250     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5251     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5252     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5253     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5254 }
5255
5256 map 'get_version $v' $LIBRARY_LIST
5257
5258 print_program_libs(){
5259     eval "program_libs=\$${1}_libs"
5260     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5261 }
5262
5263 map 'print_program_libs $v' $PROGRAM_LIST
5264
5265 cat > $TMPH <<EOF
5266 /* Automatically generated by configure - do not modify! */
5267 #ifndef FFMPEG_CONFIG_H
5268 #define FFMPEG_CONFIG_H
5269 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5270 #define FFMPEG_LICENSE "$(c_escape $license)"
5271 #define CONFIG_THIS_YEAR 2014
5272 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5273 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5274 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5275 #define av_restrict $_restrict
5276 #define EXTERN_PREFIX "${extern_prefix}"
5277 #define EXTERN_ASM ${extern_prefix}
5278 #define BUILDSUF "$build_suffix"
5279 #define SLIBSUF "$SLIBSUF"
5280 #define HAVE_MMX2 HAVE_MMXEXT
5281 EOF
5282
5283 test -n "$assert_level" &&
5284     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5285
5286 test -n "$malloc_prefix" &&
5287     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5288
5289 if enabled yasm; then
5290     append config_files $TMPASM
5291     printf '' >$TMPASM
5292 fi
5293
5294 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5295
5296
5297 mkdir -p doc
5298 echo "@c auto-generated by configure" > doc/config.texi
5299
5300 print_config ARCH_   "$config_files" $ARCH_LIST
5301 print_config HAVE_   "$config_files" $HAVE_LIST
5302 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5303                                      $CONFIG_EXTRA      \
5304                                      $ALL_COMPONENTS    \
5305
5306 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5307 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5308
5309 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5310 cp_if_changed $TMPH config.h
5311 touch .config
5312
5313 enabled yasm && cp_if_changed $TMPASM config.asm
5314
5315 cat > $TMPH <<EOF
5316 /* Generated by ffconf */
5317 #ifndef AVUTIL_AVCONFIG_H
5318 #define AVUTIL_AVCONFIG_H
5319 EOF
5320
5321 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5322
5323 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5324
5325 cp_if_changed $TMPH libavutil/avconfig.h
5326
5327 if test -n "$WARNINGS"; then
5328     printf "\n$WARNINGS"
5329     enabled fatal_warnings && exit 1
5330 fi
5331
5332 # build pkg-config files
5333
5334 pkgconfig_generate(){
5335     name=$1
5336     shortname=${name#lib}${build_suffix}
5337     comment=$2
5338     version=$3
5339     libs=$4
5340     requires=$5
5341     enabled ${name#lib} || return 0
5342     mkdir -p $name
5343     cat <<EOF > $name/$name${build_suffix}.pc
5344 prefix=$prefix
5345 exec_prefix=\${prefix}
5346 libdir=$libdir
5347 includedir=$incdir
5348
5349 Name: $name
5350 Description: $comment
5351 Version: $version
5352 Requires: $(enabled shared || echo $requires)
5353 Requires.private: $(enabled shared && echo $requires)
5354 Conflicts:
5355 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5356 Libs.private: $(enabled shared && echo $libs)
5357 Cflags: -I\${includedir}
5358 EOF
5359
5360 mkdir -p doc/examples/pc-uninstalled
5361 includedir=${source_path}
5362 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5363     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5364 prefix=
5365 exec_prefix=
5366 libdir=\${pcfiledir}/../../../$name
5367 includedir=${includedir}
5368
5369 Name: $name
5370 Description: $comment
5371 Version: $version
5372 Requires: $requires
5373 Conflicts:
5374 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5375 Cflags: -I\${includedir}
5376 EOF
5377 }
5378
5379 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5380 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5381 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5382 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5383 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5384 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5385 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5386 lavfi_libs=${lavfi_libs%, }
5387
5388 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5389 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5390
5391 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5392 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5393 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5394 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5395 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5396 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5397 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5398 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5399 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"