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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --enable-rpath           use rpath to allow installing libraries in paths
  91                            not part of the dynamic linker search path
  92
  93 Licensing options:
  94   --enable-gpl             allow use of GPL code, the resulting libs
  95                            and binaries will be under GPL [no]
  96   --enable-version3        upgrade (L)GPL to version 3 [no]
  97   --enable-nonfree         allow use of nonfree code, the resulting libs
  98                            and binaries will be unredistributable [no]
  99
 100 Configuration options:
 101   --disable-static         do not build static libraries [no]
 102   --enable-shared          build shared libraries [no]
 103   --enable-small           optimize for size instead of speed
 104   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 105   --enable-gray            enable full grayscale support (slower color)
 106   --disable-swscale-alpha  disable alpha channel support in swscale
 107   --disable-all            disable building components, libraries and programs
 108   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 109   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
 110   --enable-raise-major     increase major version numbers in sonames [no]
 111
 112 Program options:
 113   --disable-programs       do not build command line programs
 114   --disable-ffmpeg         disable ffmpeg build
 115   --disable-ffplay         disable ffplay build
 116   --disable-ffprobe        disable ffprobe build
 117   --disable-ffserver       disable ffserver build
 118
 119 Documentation options:
 120   --disable-doc            do not build documentation
 121   --disable-htmlpages      do not build HTML documentation pages
 122   --disable-manpages       do not build man documentation pages
 123   --disable-podpages       do not build POD documentation pages
 124   --disable-txtpages       do not build text documentation pages
 125
 126 Component options:
 127   --disable-avdevice       disable libavdevice build
 128   --disable-avcodec        disable libavcodec build
 129   --disable-avformat       disable libavformat build
 130   --disable-avutil         disable libavutil build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [auto]
 137   --disable-w32threads     disable Win32 threads [auto]
 138   --disable-os2threads     disable OS/2 threads [auto]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148
 149 Hardware accelerators:
 150   --disable-dxva2          disable DXVA2 code [autodetect]
 151   --disable-vaapi          disable VAAPI code [autodetect]
 152   --enable-vda             enable VDA code
 153   --disable-vdpau          disable VDPAU code [autodetect]
 154
 155 Individual component options:
 156   --disable-everything     disable all components listed below
 157   --disable-encoder=NAME   disable encoder NAME
 158   --enable-encoder=NAME    enable encoder NAME
 159   --disable-encoders       disable all encoders
 160   --disable-decoder=NAME   disable decoder NAME
 161   --enable-decoder=NAME    enable decoder NAME
 162   --disable-decoders       disable all decoders
 163   --disable-hwaccel=NAME   disable hwaccel NAME
 164   --enable-hwaccel=NAME    enable hwaccel NAME
 165   --disable-hwaccels       disable all hwaccels
 166   --disable-muxer=NAME     disable muxer NAME
 167   --enable-muxer=NAME      enable muxer NAME
 168   --disable-muxers         disable all muxers
 169   --disable-demuxer=NAME   disable demuxer NAME
 170   --enable-demuxer=NAME    enable demuxer NAME
 171   --disable-demuxers       disable all demuxers
 172   --enable-parser=NAME     enable parser NAME
 173   --disable-parser=NAME    disable parser NAME
 174   --disable-parsers        disable all parsers
 175   --enable-bsf=NAME        enable bitstream filter NAME
 176   --disable-bsf=NAME       disable bitstream filter NAME
 177   --disable-bsfs           disable all bitstream filters
 178   --enable-protocol=NAME   enable protocol NAME
 179   --disable-protocol=NAME  disable protocol NAME
 180   --disable-protocols      disable all protocols
 181   --enable-indev=NAME      enable input device NAME
 182   --disable-indev=NAME     disable input device NAME
 183   --disable-indevs         disable input devices
 184   --enable-outdev=NAME     enable output device NAME
 185   --disable-outdev=NAME    disable output device NAME
 186   --disable-outdevs        disable output devices
 187   --disable-devices        disable all devices
 188   --enable-filter=NAME     enable filter NAME
 189   --disable-filter=NAME    disable filter NAME
 190   --disable-filters        disable all filters
 191
 192 External library support:
 193   --enable-avisynth        enable reading of AviSynth script files [no]
 194   --disable-bzlib          disable bzlib [autodetect]
 195   --enable-fontconfig      enable fontconfig
 196   --enable-frei0r          enable frei0r video filtering
 197   --enable-gnutls          enable gnutls [no]
 198   --disable-iconv          disable iconv [autodetect]
 199   --enable-ladspa          enable LADSPA audio filtering
 200   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 201   --enable-libass          enable libass subtitles rendering [no]
 202   --enable-libbluray       enable BluRay reading using libbluray [no]
 203   --enable-libcaca         enable textual display using libcaca
 204   --enable-libcelt         enable CELT decoding via libcelt [no]
 205   --enable-libcdio         enable audio CD grabbing with libcdio
 206   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 207                            and libraw1394 [no]
 208   --enable-libfaac         enable AAC encoding via libfaac [no]
 209   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 210   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 211   --enable-libfreetype     enable libfreetype [no]
 212   --enable-libgme          enable Game Music Emu via libgme [no]
 213   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 214   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 215   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 216   --enable-libmodplug      enable ModPlug via libmodplug [no]
 217   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 218   --enable-libnut          enable NUT (de)muxing via libnut,
 219                            native (de)muxer exists [no]
 220   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 221   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 222   --enable-libopencv       enable video filtering via libopencv [no]
 223   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 224   --enable-libopus         enable Opus decoding via libopus [no]
 225   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 226   --enable-libquvi         enable quvi input via libquvi [no]
 227   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 228   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 229   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 230   --enable-libsoxr         enable Include libsoxr resampling [no]
 231   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 232   --enable-libssh          enable SFTP protocol via libssh [no]
 233   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 234   --enable-libtheora       enable Theora encoding via libtheora [no]
 235   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 236   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 237   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 238   --enable-libvidstab      enable video stabilization using vid.stab [no]
 239   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 240   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 241   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 242                            native implementation exists [no]
 243   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 244   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 245   --enable-libwebp         enable WebP encoding via libwebp [no]
 246   --enable-libx264         enable H.264 encoding via x264 [no]
 247   --enable-libx265         enable HEVC encoding via x265 [no]
 248   --enable-libxavs         enable AVS encoding via xavs [no]
 249   --enable-libxvid         enable Xvid encoding via xvidcore,
 250                            native MPEG-4/Xvid encoder exists [no]
 251   --enable-libzmq          enable message passing via libzmq [no]
 252   --enable-libzvbi         enable teletext support via libzvbi [no]
 253   --enable-decklink        enable Blackmagick DeckLink output [no]
 254   --enable-openal          enable OpenAL 1.1 capture support [no]
 255   --enable-opencl          enable OpenCL code
 256   --enable-opengl          enable OpenGL rendering [no]
 257   --enable-openssl         enable openssl [no]
 258   --enable-x11grab         enable X11 grabbing [no]
 259   --disable-xlib           disable xlib [autodetect]
 260   --disable-zlib           disable zlib [autodetect]
 261
 262 Toolchain options:
 263   --arch=ARCH              select architecture [$arch]
 264   --cpu=CPU                select the minimum required CPU (affects
 265                            instruction selection, may crash on older CPUs)
 266   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 267   --progs-suffix=SUFFIX    program name suffix []
 268   --enable-cross-compile   assume a cross-compiler is used
 269   --sysroot=PATH           root of cross-build tree
 270   --sysinclude=PATH        location of cross-build system headers
 271   --target-os=OS           compiler targets OS [$target_os]
 272   --target-exec=CMD        command to run executables on target
 273   --target-path=DIR        path to view of build directory on target
 274   --target-samples=DIR     path to samples directory on target
 275   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 276   --toolchain=NAME         set tool defaults according to NAME
 277   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 278   --nm=NM                  use nm tool NM [$nm_default]
 279   --ar=AR                  use archive tool AR [$ar_default]
 280   --as=AS                  use assembler AS [$as_default]
 281   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 282   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 283   --cc=CC                  use C compiler CC [$cc_default]
 284   --cxx=CXX                use C compiler CXX [$cxx_default]
 285   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 286   --ld=LD                  use linker LD [$ld_default]
 287   --pkg-config=PKGCONF     use pkg-config PKGCONF [$pkg_config_default]
 288   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 289   --host-cc=HOSTCC         use host C compiler HOSTCC
 290   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 291   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 292   --host-ld=HOSTLD         use host linker HOSTLD
 293   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 294   --host-libs=HLIBS        use libs HLIBS when linking for host
 295   --host-os=OS             compiler host OS [$target_os]
 296   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 297   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 298   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 299   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 300   --extra-version=STRING   version string suffix []
 301   --optflags=OPTFLAGS      override optimization-related compiler flags
 302   --build-suffix=SUFFIX    library name suffix []
 303   --enable-pic             build position-independent code
 304   --enable-thumb           compile for Thumb instruction set
 305   --enable-lto             use link-time optimization
 306
 307 Advanced options (experts only):
 308   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 309   --disable-symver         disable symbol versioning
 310   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 311   --disable-safe-bitstream-reader
 312                            disable buffer boundary checking in bitreaders
 313                            (faster, but may crash)
 314   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 315   --enable-sram            allow use of on-chip SRAM
 316
 317 Optimization options (experts only):
 318   --disable-asm            disable all assembler optimizations
 319   --disable-altivec        disable AltiVec optimizations
 320   --disable-amd3dnow       disable 3DNow! optimizations
 321   --disable-amd3dnowext    disable 3DNow! extended optimizations
 322   --disable-mmx            disable MMX optimizations
 323   --disable-mmxext         disable MMXEXT optimizations
 324   --disable-sse            disable SSE optimizations
 325   --disable-sse2           disable SSE2 optimizations
 326   --disable-sse3           disable SSE3 optimizations
 327   --disable-ssse3          disable SSSE3 optimizations
 328   --disable-sse4           disable SSE4 optimizations
 329   --disable-sse42          disable SSE4.2 optimizations
 330   --disable-avx            disable AVX optimizations
 331   --disable-xop            disable XOP optimizations
 332   --disable-fma3           disable FMA3 optimizations
 333   --disable-fma4           disable FMA4 optimizations
 334   --disable-avx2           disable AVX2 optimizations
 335   --disable-armv5te        disable armv5te optimizations
 336   --disable-armv6          disable armv6 optimizations
 337   --disable-armv6t2        disable armv6t2 optimizations
 338   --disable-vfp            disable VFP optimizations
 339   --disable-neon           disable NEON optimizations
 340   --disable-inline-asm     disable use of inline assembler
 341   --disable-yasm           disable use of yasm assembler
 342   --disable-mips32r2       disable MIPS32R2 optimizations
 343   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 344   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 345   --disable-mipsfpu        disable floating point MIPS optimizations
 346   --disable-fast-unaligned consider unaligned accesses slow
 347
 348 Developer options (useful when working on FFmpeg itself):
 349   --disable-debug          disable debugging symbols
 350   --enable-debug=LEVEL     set the debug level [$debuglevel]
 351   --disable-optimizations  disable compiler optimizations
 352   --enable-extra-warnings  enable more compiler warnings
 353   --disable-stripping      disable stripping of executables and shared libraries
 354   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 355                            2 causes a slowdown at runtime.
 356   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 357   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 358                            leaks and errors, using the specified valgrind binary.
 359                            Cannot be combined with --target-exec
 360   --enable-ftrapv          Trap arithmetic overflows
 361   --samples=PATH           location of test samples for FATE, if not set use
 362                            \$FATE_SAMPLES at make invocation time.
 363   --enable-neon-clobber-test check NEON registers for clobbering (should be
 364                            used only for debugging purposes)
 365   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 366                            should be used only for debugging purposes)
 367   --enable-random          randomly enable/disable components
 368   --disable-random
 369   --enable-random=LIST     randomly enable/disable specific components or
 370   --disable-random=LIST    component groups. LIST is a comma-separated list
 371                            of NAME[:PROB] entries where NAME is a component
 372                            (group) and PROB the probability associated with
 373                            NAME (default 0.5).
 374   --random-seed=VALUE      seed value for --enable/disable-random
 375
 376 NOTE: Object files are built at the place where configure is launched.
 377 EOF
 378   exit 0
 379 }
 380
 381 quotes='""'
 382
 383 log(){
 384     echo "$@" >> $logfile
 385 }
 386
 387 log_file(){
 388     log BEGIN $1
 389     pr -n -t $1 >> $logfile
 390     log END $1
 391 }
 392
 393 echolog(){
 394     log "$@"
 395     echo "$@"
 396 }
 397
 398 warn(){
 399     log "WARNING: $*"
 400     WARNINGS="${WARNINGS}WARNING: $*\n"
 401 }
 402
 403 die(){
 404     echolog "$@"
 405     cat <<EOF
 406
 407 If you think configure made a mistake, make sure you are using the latest
 408 version from Git.  If the latest version fails, report the problem to the
 409 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 410 EOF
 411     if disabled logging; then
 412         cat <<EOF
 413 Rerun configure with logging enabled (do not use --disable-logging), and
 414 include the log this produces with your report.
 415 EOF
 416     else
 417         cat <<EOF
 418 Include the log file "$logfile" produced by configure as this will help
 419 solving the problem.
 420 EOF
 421     fi
 422     exit 1
 423 }
 424
 425 # Avoid locale weirdness, besides we really just want to translate ASCII.
 426 toupper(){
 427     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 428 }
 429
 430 tolower(){
 431     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 432 }
 433
 434 c_escape(){
 435     echo "$*" | sed 's/["\\]/\\\0/g'
 436 }
 437
 438 sh_quote(){
 439     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 440     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 441     echo "$v"
 442 }
 443
 444 cleanws(){
 445     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
 446 }
 447
 448 filter(){
 449     pat=$1
 450     shift
 451     for v; do
 452         eval "case $v in $pat) echo $v ;; esac"
 453     done
 454 }
 455
 456 filter_out(){
 457     pat=$1
 458     shift
 459     for v; do
 460         eval "case $v in $pat) ;; *) echo $v ;; esac"
 461     done
 462 }
 463
 464 map(){
 465     m=$1
 466     shift
 467     for v; do eval $m; done
 468 }
 469
 470 add_suffix(){
 471     suffix=$1
 472     shift
 473     for v; do echo ${v}${suffix}; done
 474 }
 475
 476 set_all(){
 477     value=$1
 478     shift
 479     for var in $*; do
 480         eval $var=$value
 481     done
 482 }
 483
 484 set_weak(){
 485     value=$1
 486     shift
 487     for var; do
 488         eval : \${$var:=$value}
 489     done
 490 }
 491
 492 sanitize_var_name(){
 493     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 494 }
 495
 496 set_safe(){
 497     var=$1
 498     shift
 499     eval $(sanitize_var_name "$var")='$*'
 500 }
 501
 502 get_safe(){
 503     eval echo \$$(sanitize_var_name "$1")
 504 }
 505
 506 pushvar(){
 507     for pvar in $*; do
 508         eval level=\${${pvar}_level:=0}
 509         eval ${pvar}_${level}="\$$pvar"
 510         eval ${pvar}_level=$(($level+1))
 511     done
 512 }
 513
 514 popvar(){
 515     for pvar in $*; do
 516         eval level=\${${pvar}_level:-0}
 517         test $level = 0 && continue
 518         eval level=$(($level-1))
 519         eval $pvar="\${${pvar}_${level}}"
 520         eval ${pvar}_level=$level
 521         eval unset ${pvar}_${level}
 522     done
 523 }
 524
 525 enable(){
 526     set_all yes $*
 527 }
 528
 529 disable(){
 530     set_all no $*
 531 }
 532
 533 enable_weak(){
 534     set_weak yes $*
 535 }
 536
 537 disable_weak(){
 538     set_weak no $*
 539 }
 540
 541 enable_safe(){
 542     for var; do
 543         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 544     done
 545 }
 546
 547 disable_safe(){
 548     for var; do
 549         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 550     done
 551 }
 552
 553 do_enable_deep(){
 554     for var; do
 555         enabled $var && continue
 556         eval sel="\$${var}_select"
 557         eval sgs="\$${var}_suggest"
 558         pushvar var sgs
 559         enable_deep $sel
 560         popvar sgs
 561         enable_deep_weak $sgs
 562         popvar var
 563     done
 564 }
 565
 566 enable_deep(){
 567     do_enable_deep $*
 568     enable $*
 569 }
 570
 571 enable_deep_weak(){
 572     for var; do
 573         disabled $var && continue
 574         pushvar var
 575         do_enable_deep $var
 576         popvar var
 577         enable_weak $var
 578     done
 579 }
 580
 581 enabled(){
 582     test "${1#!}" = "$1" && op== || op=!=
 583     eval test "x\$${1#!}" $op "xyes"
 584 }
 585
 586 disabled(){
 587     test "${1#!}" = "$1" && op== || op=!=
 588     eval test "x\$${1#!}" $op "xno"
 589 }
 590
 591 enabled_all(){
 592     for opt; do
 593         enabled $opt || return 1
 594     done
 595 }
 596
 597 disabled_all(){
 598     for opt; do
 599         disabled $opt || return 1
 600     done
 601 }
 602
 603 enabled_any(){
 604     for opt; do
 605         enabled $opt && return 0
 606     done
 607 }
 608
 609 disabled_any(){
 610     for opt; do
 611         disabled $opt && return 0
 612     done
 613     return 1
 614 }
 615
 616 set_default(){
 617     for opt; do
 618         eval : \${$opt:=\$${opt}_default}
 619     done
 620 }
 621
 622 is_in(){
 623     value=$1
 624     shift
 625     for var in $*; do
 626         [ $var = $value ] && return 0
 627     done
 628     return 1
 629 }
 630
 631 do_check_deps(){
 632     for cfg; do
 633         cfg="${cfg#!}"
 634         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 635         disabled ${cfg}_checking && continue
 636         enable ${cfg}_checking
 637         append allopts $cfg
 638
 639         eval dep_all="\$${cfg}_deps"
 640         eval dep_any="\$${cfg}_deps_any"
 641         eval dep_sel="\$${cfg}_select"
 642         eval dep_sgs="\$${cfg}_suggest"
 643         eval dep_ifa="\$${cfg}_if"
 644         eval dep_ifn="\$${cfg}_if_any"
 645
 646         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 647         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 648         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 649
 650         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 651         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 652         enabled_all  $dep_all || disable $cfg
 653         enabled_any  $dep_any || disable $cfg
 654         disabled_any $dep_sel && disable $cfg
 655
 656         if enabled $cfg; then
 657             enable_deep $dep_sel
 658             enable_deep_weak $dep_sgs
 659         fi
 660
 661         disable ${cfg}_checking
 662     done
 663 }
 664
 665 check_deps(){
 666     unset allopts
 667
 668     do_check_deps "$@"
 669
 670     for cfg in $allopts; do
 671         enabled $cfg || continue
 672         eval dep_extralibs="\$${cfg}_extralibs"
 673         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 674     done
 675 }
 676
 677 print_config(){
 678     pfx=$1
 679     files=$2
 680     shift 2
 681     map 'eval echo "$v \${$v:-no}"' "$@" |
 682     awk "BEGIN { split(\"$files\", files) }
 683         {
 684             c = \"$pfx\" toupper(\$1);
 685             v = \$2;
 686             sub(/yes/, 1, v);
 687             sub(/no/,  0, v);
 688             for (f in files) {
 689                 file = files[f];
 690                 if (file ~ /\\.h\$/) {
 691                     printf(\"#define %s %d\\n\", c, v) >>file;
 692                 } else if (file ~ /\\.asm\$/) {
 693                     printf(\"%%define %s %d\\n\", c, v) >>file;
 694                 } else if (file ~ /\\.mak\$/) {
 695                     n = -v ? \"\" : \"!\";
 696                     printf(\"%s%s=yes\\n\", n, c) >>file;
 697                 } else if (file ~ /\\.texi\$/) {
 698                     pre = -v ? \"\" : \"@c \";
 699                     yesno = \$2;
 700                     c2 = tolower(c);
 701                     gsub(/_/, \"-\", c2);
 702                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 703                 }
 704             }
 705         }"
 706 }
 707
 708 print_enabled(){
 709     suf=$1
 710     shift
 711     for v; do
 712         enabled $v && printf "%s\n" ${v%$suf};
 713     done
 714 }
 715
 716 append(){
 717     var=$1
 718     shift
 719     eval "$var=\"\$$var $*\""
 720 }
 721
 722 prepend(){
 723     var=$1
 724     shift
 725     eval "$var=\"$* \$$var\""
 726 }
 727
 728 add_cppflags(){
 729     append CPPFLAGS "$@"
 730 }
 731
 732 add_cflags(){
 733     append CFLAGS $($cflags_filter "$@")
 734 }
 735
 736 add_cxxflags(){
 737     append CXXFLAGS $($cflags_filter "$@")
 738 }
 739
 740 add_asflags(){
 741     append ASFLAGS $($asflags_filter "$@")
 742 }
 743
 744 add_ldflags(){
 745     append LDFLAGS $($ldflags_filter "$@")
 746 }
 747
 748 add_stripflags(){
 749     append ASMSTRIPFLAGS "$@"
 750 }
 751
 752 add_extralibs(){
 753     prepend extralibs $($ldflags_filter "$@")
 754 }
 755
 756 add_host_cppflags(){
 757     append host_cppflags "$@"
 758 }
 759
 760 add_host_cflags(){
 761     append host_cflags $($host_cflags_filter "$@")
 762 }
 763
 764 add_host_ldflags(){
 765     append host_ldflags $($host_ldflags_filter "$@")
 766 }
 767
 768 add_compat(){
 769     append compat_objs $1
 770     shift
 771     map 'add_cppflags -D$v' "$@"
 772 }
 773
 774 check_cmd(){
 775     log "$@"
 776     "$@" >> $logfile 2>&1
 777 }
 778
 779 cc_o(){
 780     eval printf '%s\\n' $CC_O
 781 }
 782
 783 cc_e(){
 784     eval printf '%s\\n' $CC_E
 785 }
 786
 787 check_cc(){
 788     log check_cc "$@"
 789     cat > $TMPC
 790     log_file $TMPC
 791     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 792 }
 793
 794 check_cxx(){
 795     log check_cxx "$@"
 796     cat > $TMPCPP
 797     log_file $TMPCPP
 798     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 799 }
 800
 801 check_cpp(){
 802     log check_cpp "$@"
 803     cat > $TMPC
 804     log_file $TMPC
 805     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 806 }
 807
 808 as_o(){
 809     eval printf '%s\\n' $AS_O
 810 }
 811
 812 check_as(){
 813     log check_as "$@"
 814     cat > $TMPS
 815     log_file $TMPS
 816     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 817 }
 818
 819 check_inline_asm(){
 820     log check_inline_asm "$@"
 821     name="$1"
 822     code="$2"
 823     shift 2
 824     disable $name
 825     check_cc "$@" <<EOF && enable $name
 826 void foo(void){ __asm__ volatile($code); }
 827 EOF
 828 }
 829
 830 check_insn(){
 831     log check_insn "$@"
 832     check_inline_asm ${1}_inline "\"$2\""
 833     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 834 }
 835
 836 check_yasm(){
 837     log check_yasm "$@"
 838     echo "$1" > $TMPS
 839     log_file $TMPS
 840     shift 1
 841     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 842 }
 843
 844 ld_o(){
 845     eval printf '%s\\n' $LD_O
 846 }
 847
 848 check_ld(){
 849     log check_ld "$@"
 850     type=$1
 851     shift 1
 852     flags=$(filter_out '-l*|*.so' $@)
 853     libs=$(filter '-l*|*.so' $@)
 854     check_$type $($cflags_filter $flags) || return
 855     flags=$($ldflags_filter $flags)
 856     libs=$($ldflags_filter $libs)
 857     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 858 }
 859
 860 print_include(){
 861     hdr=$1
 862     test "${hdr%.h}" = "${hdr}" &&
 863         echo "#include $hdr"    ||
 864         echo "#include <$hdr>"
 865 }
 866
 867 check_code(){
 868     log check_code "$@"
 869     check=$1
 870     headers=$2
 871     code=$3
 872     shift 3
 873     {
 874         for hdr in $headers; do
 875             print_include $hdr
 876         done
 877         echo "int main(void) { $code; return 0; }"
 878     } | check_$check "$@"
 879 }
 880
 881 check_cppflags(){
 882     log check_cppflags "$@"
 883     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 884 int x;
 885 EOF
 886 }
 887
 888 test_cflags(){
 889     log test_cflags "$@"
 890     set -- $($cflags_filter "$@")
 891     check_cc "$@" <<EOF
 892 int x;
 893 EOF
 894 }
 895
 896 check_cflags(){
 897     log check_cflags "$@"
 898     test_cflags "$@" && add_cflags "$@"
 899 }
 900
 901 check_cxxflags(){
 902     log check_cxxflags "$@"
 903     set -- $($cflags_filter "$@")
 904     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 905 int x;
 906 EOF
 907 }
 908
 909 test_ldflags(){
 910     log test_ldflags "$@"
 911     check_ld "cc" "$@" <<EOF
 912 int main(void){ return 0; }
 913 EOF
 914 }
 915
 916 check_ldflags(){
 917     log check_ldflags "$@"
 918     test_ldflags "$@" && add_ldflags "$@"
 919 }
 920
 921 test_stripflags(){
 922     log test_stripflags "$@"
 923     # call check_cc to get a fresh TMPO
 924     check_cc <<EOF
 925 int main(void) { return 0; }
 926 EOF
 927     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 928 }
 929
 930 check_stripflags(){
 931     log check_stripflags "$@"
 932     test_stripflags "$@" && add_stripflags "$@"
 933 }
 934
 935 check_header(){
 936     log check_header "$@"
 937     header=$1
 938     shift
 939     disable_safe $header
 940     check_cpp "$@" <<EOF && enable_safe $header
 941 #include <$header>
 942 int x;
 943 EOF
 944 }
 945
 946 check_func(){
 947     log check_func "$@"
 948     func=$1
 949     shift
 950     disable $func
 951     check_ld "cc" "$@" <<EOF && enable $func
 952 extern int $func();
 953 int main(void){ $func(); }
 954 EOF
 955 }
 956
 957 check_mathfunc(){
 958     log check_mathfunc "$@"
 959     func=$1
 960     narg=$2
 961     shift 2
 962     test $narg = 2 && args="f, g" || args="f"
 963     disable $func
 964     check_ld "cc" "$@" <<EOF && enable $func
 965 #include <math.h>
 966 float foo(float f, float g) { return $func($args); }
 967 int main(void){ return (int) foo; }
 968 EOF
 969 }
 970
 971 check_func_headers(){
 972     log check_func_headers "$@"
 973     headers=$1
 974     funcs=$2
 975     shift 2
 976     {
 977         for hdr in $headers; do
 978             print_include $hdr
 979         done
 980         for func in $funcs; do
 981             echo "long check_$func(void) { return (long) $func; }"
 982         done
 983         echo "int main(void) { return 0; }"
 984     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 985 }
 986
 987 check_class_headers_cpp(){
 988     log check_class_headers_cpp "$@"
 989     headers=$1
 990     classes=$2
 991     shift 2
 992     {
 993         for hdr in $headers; do
 994             echo "#include <$hdr>"
 995         done
 996         echo "int main(void) { "
 997         i=1
 998         for class in $classes; do
 999             echo "$class obj$i;"
1000             i=$(expr $i + 1)
1001         done
1002         echo "return 0; }"
1003     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1004 }
1005
1006 check_cpp_condition(){
1007     log check_cpp_condition "$@"
1008     header=$1
1009     condition=$2
1010     shift 2
1011     check_cpp "$@" <<EOF
1012 #include <$header>
1013 #if !($condition)
1014 #error "unsatisfied condition: $condition"
1015 #endif
1016 EOF
1017 }
1018
1019 check_lib(){
1020     log check_lib "$@"
1021     header="$1"
1022     func="$2"
1023     shift 2
1024     check_header $header && check_func $func "$@" && add_extralibs "$@"
1025 }
1026
1027 check_lib2(){
1028     log check_lib2 "$@"
1029     headers="$1"
1030     funcs="$2"
1031     shift 2
1032     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1033 }
1034
1035 check_lib_cpp(){
1036     log check_lib_cpp "$@"
1037     headers="$1"
1038     classes="$2"
1039     shift 2
1040     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1041 }
1042
1043 check_pkg_config(){
1044     log check_pkg_config "$@"
1045     pkgandversion="$1"
1046     pkg="${1%% *}"
1047     headers="$2"
1048     funcs="$3"
1049     shift 3
1050     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1051     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1052     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1053     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1054         set_safe ${pkg}_cflags $pkg_cflags   &&
1055         set_safe ${pkg}_libs   $pkg_libs
1056 }
1057
1058 check_exec(){
1059     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1060 }
1061
1062 check_exec_crash(){
1063     code=$(cat)
1064
1065     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1066     # are safe but may not be available everywhere.  Thus we use
1067     # raise(SIGTERM) instead.  The check is run in a subshell so we
1068     # can redirect the "Terminated" message from the shell.  SIGBUS
1069     # is not defined by standard C so it is used conditionally.
1070
1071     (check_exec "$@") >> $logfile 2>&1 <<EOF
1072 #include <signal.h>
1073 static void sighandler(int sig){
1074     raise(SIGTERM);
1075 }
1076 int foo(void){
1077     $code
1078 }
1079 int (*func_ptr)(void) = foo;
1080 int main(void){
1081     signal(SIGILL, sighandler);
1082     signal(SIGFPE, sighandler);
1083     signal(SIGSEGV, sighandler);
1084 #ifdef SIGBUS
1085     signal(SIGBUS, sighandler);
1086 #endif
1087     return func_ptr();
1088 }
1089 EOF
1090 }
1091
1092 check_type(){
1093     log check_type "$@"
1094     headers=$1
1095     type=$2
1096     shift 2
1097     disable_safe "$type"
1098     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1099 }
1100
1101 check_struct(){
1102     log check_struct "$@"
1103     headers=$1
1104     struct=$2
1105     member=$3
1106     shift 3
1107     disable_safe "${struct}_${member}"
1108     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1109         enable_safe "${struct}_${member}"
1110 }
1111
1112 check_builtin(){
1113     log check_builtin "$@"
1114     name=$1
1115     headers=$2
1116     builtin=$3
1117     shift 3
1118     disable "$name"
1119     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1120 }
1121
1122 check_compile_assert(){
1123     log check_compile_assert "$@"
1124     name=$1
1125     headers=$2
1126     condition=$3
1127     shift 3
1128     disable "$name"
1129     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1130 }
1131
1132 require(){
1133     name="$1"
1134     header="$2"
1135     func="$3"
1136     shift 3
1137     check_lib $header $func "$@" || die "ERROR: $name not found"
1138 }
1139
1140 require2(){
1141     name="$1"
1142     headers="$2"
1143     func="$3"
1144     shift 3
1145     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1146 }
1147
1148 require_cpp(){
1149     name="$1"
1150     headers="$2"
1151     classes="$3"
1152     shift 3
1153     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1154 }
1155
1156 require_pkg_config(){
1157     pkg="$1"
1158     check_pkg_config "$@" || die "ERROR: $pkg not found"
1159     add_cflags    $(get_safe ${pkg}_cflags)
1160     add_extralibs $(get_safe ${pkg}_libs)
1161 }
1162
1163 require_libfreetype(){
1164     log require_libfreetype "$@"
1165     pkg="freetype2"
1166     check_cmd $pkg_config --exists --print-errors $pkg \
1167       || die "ERROR: $pkg not found"
1168     pkg_cflags=$($pkg_config --cflags $pkg)
1169     pkg_libs=$($pkg_config --libs $pkg)
1170     {
1171         echo "#include <ft2build.h>"
1172         echo "#include FT_FREETYPE_H"
1173         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1174         echo "int main(void) { return 0; }"
1175     } | check_ld "cc" $pkg_cflags $pkg_libs \
1176       && set_safe ${pkg}_cflags $pkg_cflags \
1177       && set_safe ${pkg}_libs   $pkg_libs \
1178       || die "ERROR: $pkg not found"
1179     add_cflags    $(get_safe ${pkg}_cflags)
1180     add_extralibs $(get_safe ${pkg}_libs)
1181 }
1182
1183 hostcc_e(){
1184     eval printf '%s\\n' $HOSTCC_E
1185 }
1186
1187 hostcc_o(){
1188     eval printf '%s\\n' $HOSTCC_O
1189 }
1190
1191 check_host_cc(){
1192     log check_host_cc "$@"
1193     cat > $TMPC
1194     log_file $TMPC
1195     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1196 }
1197
1198 check_host_cpp(){
1199     log check_host_cpp "$@"
1200     cat > $TMPC
1201     log_file $TMPC
1202     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1203 }
1204
1205 check_host_cppflags(){
1206     log check_host_cppflags "$@"
1207     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1208 int x;
1209 EOF
1210 }
1211
1212 check_host_cflags(){
1213     log check_host_cflags "$@"
1214     set -- $($host_cflags_filter "$@")
1215     check_host_cc "$@" <<EOF && append host_cflags "$@"
1216 int x;
1217 EOF
1218 }
1219
1220 check_host_cpp_condition(){
1221     log check_host_cpp_condition "$@"
1222     header=$1
1223     condition=$2
1224     shift 2
1225     check_host_cpp "$@" <<EOF
1226 #include <$header>
1227 #if !($condition)
1228 #error "unsatisfied condition: $condition"
1229 #endif
1230 EOF
1231 }
1232
1233 apply(){
1234     file=$1
1235     shift
1236     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1237 }
1238
1239 cp_if_changed(){
1240     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1241     mkdir -p "$(dirname $2)"
1242     $cp_f "$1" "$2"
1243 }
1244
1245 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1246 # system-dependent things.
1247
1248 COMPONENT_LIST="
1249     bsfs
1250     decoders
1251     demuxers
1252     encoders
1253     filters
1254     hwaccels
1255     indevs
1256     muxers
1257     outdevs
1258     parsers
1259     protocols
1260 "
1261
1262 EXAMPLE_LIST="
1263     avio_reading_example
1264     avcodec_example
1265     demuxing_decoding_example
1266     filter_audio_example
1267     filtering_audio_example
1268     filtering_video_example
1269     metadata_example
1270     muxing_example
1271     remuxing_example
1272     resampling_audio_example
1273     scaling_video_example
1274     transcode_aac_example
1275 "
1276
1277 EXTERNAL_LIBRARY_LIST="
1278     avisynth
1279     bzlib
1280     crystalhd
1281     decklink
1282     fontconfig
1283     frei0r
1284     gnutls
1285     iconv
1286     ladspa
1287     libaacplus
1288     libass
1289     libbluray
1290     libcaca
1291     libcdio
1292     libcelt
1293     libdc1394
1294     libfaac
1295     libfdk_aac
1296     libflite
1297     libfreetype
1298     libgme
1299     libgsm
1300     libiec61883
1301     libilbc
1302     libmodplug
1303     libmp3lame
1304     libnut
1305     libopencore_amrnb
1306     libopencore_amrwb
1307     libopencv
1308     libopenjpeg
1309     libopus
1310     libpulse
1311     libquvi
1312     librtmp
1313     libschroedinger
1314     libshine
1315     libsoxr
1316     libspeex
1317     libssh
1318     libstagefright_h264
1319     libtheora
1320     libtwolame
1321     libutvideo
1322     libv4l2
1323     libvidstab
1324     libvo_aacenc
1325     libvo_amrwbenc
1326     libvorbis
1327     libvpx
1328     libwavpack
1329     libwebp
1330     libx264
1331     libx265
1332     libxavs
1333     libxvid
1334     libzmq
1335     libzvbi
1336     openal
1337     opencl
1338     opengl
1339     openssl
1340     x11grab
1341     xlib
1342     zlib
1343 "
1344
1345 DOCUMENT_LIST="
1346     doc
1347     htmlpages
1348     manpages
1349     podpages
1350     txtpages
1351 "
1352
1353 HWACCEL_LIST="
1354     dxva2
1355     vaapi
1356     vda
1357     vdpau
1358     xvmc
1359 "
1360
1361 LIBRARY_LIST="
1362     avcodec
1363     avdevice
1364     avfilter
1365     avformat
1366     avresample
1367     avutil
1368     postproc
1369     swresample
1370     swscale
1371 "
1372
1373 PROGRAM_LIST="
1374     ffplay
1375     ffprobe
1376     ffserver
1377     ffmpeg
1378 "
1379
1380 CONFIG_LIST="
1381     $COMPONENT_LIST
1382     $DOCUMENT_LIST
1383     $EXAMPLE_LIST
1384     $EXTERNAL_LIBRARY_LIST
1385     $HWACCEL_LIST
1386     $LIBRARY_LIST
1387     $PROGRAM_LIST
1388     dct
1389     dwt
1390     error_resilience
1391     fast_unaligned
1392     fft
1393     ftrapv
1394     gpl
1395     gray
1396     hardcoded_tables
1397     incompatible_libav_abi
1398     incompatible_fork_abi
1399     lsp
1400     lzo
1401     mdct
1402     memalign_hack
1403     memory_poisoning
1404     neon_clobber_test
1405     network
1406     nonfree
1407     pic
1408     pod2man
1409     raise_major
1410     rdft
1411     runtime_cpudetect
1412     safe_bitstream_reader
1413     shared
1414     small
1415     sram
1416     static
1417     swscale_alpha
1418     thumb
1419     version3
1420     xmm_clobber_test
1421 "
1422
1423 THREADS_LIST="
1424     pthreads
1425     os2threads
1426     w32threads
1427 "
1428
1429 ATOMICS_LIST="
1430     atomics_gcc
1431     atomics_suncc
1432     atomics_win32
1433 "
1434
1435 ARCH_LIST="
1436     aarch64
1437     alpha
1438     arm
1439     avr32
1440     avr32_ap
1441     avr32_uc
1442     bfin
1443     ia64
1444     m68k
1445     mips
1446     mips64
1447     parisc
1448     ppc
1449     ppc64
1450     s390
1451     sh4
1452     sparc
1453     sparc64
1454     tilegx
1455     tilepro
1456     tomi
1457     x86
1458     x86_32
1459     x86_64
1460 "
1461
1462 ARCH_EXT_LIST_ARM="
1463     armv5te
1464     armv6
1465     armv6t2
1466     neon
1467     vfp
1468     vfpv3
1469 "
1470
1471 ARCH_EXT_LIST_X86_SIMD="
1472     amd3dnow
1473     amd3dnowext
1474     avx
1475     avx2
1476     fma3
1477     fma4
1478     mmx
1479     mmxext
1480     sse
1481     sse2
1482     sse3
1483     sse4
1484     sse42
1485     ssse3
1486     xop
1487 "
1488
1489 ARCH_EXT_LIST_X86="
1490     $ARCH_EXT_LIST_X86_SIMD
1491     cpunop
1492     i686
1493 "
1494
1495 ARCH_EXT_LIST="
1496     $ARCH_EXT_LIST_ARM
1497     $ARCH_EXT_LIST_X86
1498     altivec
1499     ppc4xx
1500     mipsfpu
1501     mips32r2
1502     mipsdspr1
1503     mipsdspr2
1504 "
1505
1506 HAVE_LIST_CMDLINE="
1507     inline_asm
1508     symver
1509     yasm
1510 "
1511
1512 HAVE_LIST_PUB="
1513     bigendian
1514     fast_unaligned
1515     incompatible_libav_abi
1516     incompatible_fork_abi
1517 "
1518
1519 MATH_FUNCS="
1520     atanf
1521     atan2f
1522     cbrt
1523     cbrtf
1524     cosf
1525     exp2
1526     exp2f
1527     expf
1528     isinf
1529     isnan
1530     ldexpf
1531     llrint
1532     llrintf
1533     log2
1534     log2f
1535     log10f
1536     lrint
1537     lrintf
1538     powf
1539     rint
1540     round
1541     roundf
1542     sinf
1543     trunc
1544     truncf
1545 "
1546
1547 HAVE_LIST="
1548     $ARCH_EXT_LIST
1549     $(add_suffix _external $ARCH_EXT_LIST)
1550     $(add_suffix _inline   $ARCH_EXT_LIST)
1551     $ATOMICS_LIST
1552     $HAVE_LIST_CMDLINE
1553     $HAVE_LIST_PUB
1554     $MATH_FUNCS
1555     $THREADS_LIST
1556     access
1557     aligned_malloc
1558     aligned_stack
1559     alsa_asoundlib_h
1560     altivec_h
1561     arpa_inet_h
1562     asm_mod_q
1563     asm_types_h
1564     atomic_cas_ptr
1565     atomics_native
1566     attribute_may_alias
1567     attribute_packed
1568     cdio_paranoia_h
1569     cdio_paranoia_paranoia_h
1570     CL_cl_h
1571     clock_gettime
1572     closesocket
1573     CommandLineToArgvW
1574     CryptGenRandom
1575     dcbzl
1576     dev_bktr_ioctl_bt848_h
1577     dev_bktr_ioctl_meteor_h
1578     dev_ic_bt8xx_h
1579     dev_video_bktr_ioctl_bt848_h
1580     dev_video_meteor_ioctl_meteor_h
1581     direct_h
1582     dlfcn_h
1583     dlopen
1584     dos_paths
1585     dxva_h
1586     ebp_available
1587     ebx_available
1588     ES2_gl_h
1589     fast_64bit
1590     fast_clz
1591     fast_cmov
1592     fcntl
1593     flt_lim
1594     fork
1595     getaddrinfo
1596     gethrtime
1597     getopt
1598     GetProcessAffinityMask
1599     GetProcessMemoryInfo
1600     GetProcessTimes
1601     getrusage
1602     getservbyport
1603     GetSystemTimeAsFileTime
1604     gettimeofday
1605     glob
1606     glXGetProcAddress
1607     gnu_as
1608     gnu_windres
1609     gsm_h
1610     ibm_asm
1611     inet_aton
1612     inline_asm_labels
1613     io_h
1614     isatty
1615     jack_port_get_latency_range
1616     kbhit
1617     ldbrx
1618     libc_msvcrt
1619     libdc1394_1
1620     libdc1394_2
1621     local_aligned_16
1622     local_aligned_8
1623     localtime_r
1624     loongson
1625     lzo1x_999_compress
1626     mach_absolute_time
1627     mach_mach_time_h
1628     machine_ioctl_bt848_h
1629     machine_ioctl_meteor_h
1630     machine_rw_barrier
1631     makeinfo
1632     malloc_h
1633     MapViewOfFile
1634     memalign
1635     MemoryBarrier
1636     mkstemp
1637     mm_empty
1638     mmap
1639     mprotect
1640     nanosleep
1641     openjpeg_1_5_openjpeg_h
1642     OpenGL_gl3_h
1643     PeekNamedPipe
1644     perl
1645     pod2man
1646     poll_h
1647     posix_memalign
1648     pragma_deprecated
1649     pthread_cancel
1650     rdtsc
1651     rsync_contimeout
1652     sarestart
1653     sched_getaffinity
1654     sdl
1655     SetConsoleTextAttribute
1656     setmode
1657     setrlimit
1658     Sleep
1659     sndio_h
1660     socklen_t
1661     soundcard_h
1662     strerror_r
1663     struct_addrinfo
1664     struct_group_source_req
1665     struct_ip_mreq_source
1666     struct_ipv6_mreq
1667     struct_pollfd
1668     struct_rusage_ru_maxrss
1669     struct_sctp_event_subscribe
1670     struct_sockaddr_in6
1671     struct_sockaddr_sa_len
1672     struct_sockaddr_storage
1673     struct_stat_st_mtim_tv_nsec
1674     struct_v4l2_frmivalenum_discrete
1675     symver_asm_label
1676     symver_gnu_asm
1677     sync_val_compare_and_swap
1678     sys_mman_h
1679     sys_param_h
1680     sys_resource_h
1681     sys_select_h
1682     sys_soundcard_h
1683     sys_time_h
1684     sys_un_h
1685     sys_videoio_h
1686     sysconf
1687     sysctl
1688     termios_h
1689     texi2html
1690     threads
1691     unistd_h
1692     usleep
1693     vdpau_x11
1694     vfp_args
1695     VirtualAlloc
1696     wglGetProcAddress
1697     windows_h
1698     winsock2_h
1699     xform_asm
1700     xlib
1701     xmm_clobbers
1702 "
1703
1704 # options emitted with CONFIG_ prefix but not available on the command line
1705 CONFIG_EXTRA="
1706     aandcttables
1707     ac3dsp
1708     audio_frame_queue
1709     dsputil
1710     exif
1711     frame_thread_encoder
1712     gcrypt
1713     golomb
1714     gplv3
1715     h263dsp
1716     h264chroma
1717     h264dsp
1718     h264pred
1719     h264qpel
1720     hpeldsp
1721     huffman
1722     intrax8
1723     lgplv3
1724     llviddsp
1725     lpc
1726     mpegaudio
1727     mpegaudiodsp
1728     mpegvideo
1729     mpegvideoenc
1730     nettle
1731     rangecoder
1732     riffdec
1733     riffenc
1734     rtpdec
1735     rtpenc_chain
1736     sinewin
1737     videodsp
1738     vp3dsp
1739 "
1740
1741 CMDLINE_SELECT="
1742     $ARCH_EXT_LIST
1743     $CONFIG_LIST
1744     $HAVE_LIST_CMDLINE
1745     $THREADS_LIST
1746     asm
1747     cross_compile
1748     debug
1749     extra_warnings
1750     logging
1751     lto
1752     optimizations
1753     rpath
1754     stripping
1755 "
1756
1757 PATHS_LIST="
1758     bindir
1759     datadir
1760     docdir
1761     incdir
1762     libdir
1763     mandir
1764     prefix
1765     shlibdir
1766 "
1767
1768 CMDLINE_SET="
1769     $PATHS_LIST
1770     ar
1771     arch
1772     as
1773     assert_level
1774     build_suffix
1775     cc
1776     cpu
1777     cross_prefix
1778     cxx
1779     dep_cc
1780     extra_version
1781     host_cc
1782     host_cflags
1783     host_ld
1784     host_ldflags
1785     host_libs
1786     host_os
1787     install
1788     ld
1789     logfile
1790     malloc_prefix
1791     nm
1792     optflags
1793     pkg_config
1794     pkg_config_flags
1795     progs_suffix
1796     random_seed
1797     samples
1798     strip
1799     sysinclude
1800     sysroot
1801     target_exec
1802     target_os
1803     target_path
1804     target_samples
1805     tempprefix
1806     toolchain
1807     valgrind
1808     yasmexe
1809 "
1810
1811 CMDLINE_APPEND="
1812     extra_cflags
1813     extra_cxxflags
1814     host_cppflags
1815 "
1816
1817 # code dependency declarations
1818
1819 # architecture extensions
1820
1821 armv5te_deps="arm"
1822 armv6_deps="arm"
1823 armv6t2_deps="arm"
1824 neon_deps_any="aarch64 arm"
1825 vfp_deps_any="aarch64 arm"
1826 vfpv3_deps="vfp"
1827
1828 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1829
1830 mipsfpu_deps="mips"
1831 mips32r2_deps="mips"
1832 mipsdspr1_deps="mips"
1833 mipsdspr2_deps="mips"
1834
1835 altivec_deps="ppc"
1836 ppc4xx_deps="ppc"
1837
1838 cpunop_deps="i686"
1839 x86_64_select="i686"
1840 x86_64_suggest="fast_cmov"
1841
1842 amd3dnow_deps="mmx"
1843 amd3dnowext_deps="amd3dnow"
1844 i686_deps="x86"
1845 mmx_deps="x86"
1846 mmxext_deps="mmx"
1847 sse_deps="mmxext"
1848 sse2_deps="sse"
1849 sse3_deps="sse2"
1850 ssse3_deps="sse3"
1851 sse4_deps="ssse3"
1852 sse42_deps="sse4"
1853 avx_deps="sse42"
1854 xop_deps="avx"
1855 fma3_deps="avx"
1856 fma4_deps="avx"
1857 avx2_deps="avx"
1858
1859 mmx_external_deps="yasm"
1860 mmx_inline_deps="inline_asm"
1861 mmx_suggest="mmx_external mmx_inline"
1862
1863 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1864     eval dep=\$${ext}_deps
1865     eval ${ext}_external_deps='"${dep}_external"'
1866     eval ${ext}_inline_deps='"${dep}_inline"'
1867     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1868 done
1869
1870 aligned_stack_if_any="aarch64 ppc x86"
1871 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1872 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1873 fast_unaligned_if_any="aarch64 ppc x86"
1874
1875 need_memalign="altivec neon sse"
1876
1877 # system capabilities
1878 log2_deps="!libc_msvcrt"
1879
1880 symver_if_any="symver_asm_label symver_gnu_asm"
1881
1882 # threading support
1883 atomics_gcc_if="sync_val_compare_and_swap"
1884 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1885 atomics_win32_if="MemoryBarrier"
1886 atomics_native_if_any="$ATOMICS_LIST"
1887 w32threads_deps="atomics_native"
1888 threads_if_any="$THREADS_LIST"
1889
1890 # subsystems
1891 dct_select="rdft"
1892 error_resilience_select="dsputil"
1893 frame_thread_encoder_deps="encoders threads"
1894 mdct_select="fft"
1895 rdft_select="fft"
1896 mpegaudio_select="mpegaudiodsp"
1897 mpegaudiodsp_select="dct"
1898 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1899 mpegvideoenc_select="dsputil mpegvideo"
1900
1901 # decoders / encoders
1902 aac_decoder_select="mdct sinewin"
1903 aac_encoder_select="audio_frame_queue mdct sinewin"
1904 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1905 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1906 ac3_encoder_select="mdct ac3dsp dsputil"
1907 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1908 aic_decoder_select="dsputil golomb"
1909 alac_encoder_select="lpc"
1910 als_decoder_select="dsputil"
1911 amrnb_decoder_select="lsp"
1912 amrwb_decoder_select="lsp"
1913 amv_decoder_select="sp5x_decoder exif"
1914 amv_encoder_select="aandcttables"
1915 ape_decoder_select="dsputil"
1916 asv1_decoder_select="dsputil"
1917 asv1_encoder_select="dsputil"
1918 asv2_decoder_select="dsputil"
1919 asv2_encoder_select="dsputil"
1920 atrac1_decoder_select="mdct sinewin"
1921 atrac3_decoder_select="mdct"
1922 atrac3p_decoder_select="mdct sinewin"
1923 avrn_decoder_select="exif"
1924 bink_decoder_select="dsputil hpeldsp"
1925 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1926 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1927 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1928 cllc_decoder_select="dsputil"
1929 comfortnoise_encoder_select="lpc"
1930 cook_decoder_select="dsputil mdct sinewin"
1931 cscd_decoder_select="lzo"
1932 cscd_decoder_suggest="zlib"
1933 dca_decoder_select="mdct"
1934 dirac_decoder_select="dsputil dwt golomb videodsp"
1935 dnxhd_decoder_select="dsputil"
1936 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1937 dvvideo_decoder_select="dsputil"
1938 dvvideo_encoder_select="dsputil"
1939 dxa_decoder_select="zlib"
1940 eac3_decoder_select="ac3_decoder"
1941 eac3_encoder_select="ac3_encoder"
1942 eamad_decoder_select="aandcttables dsputil mpegvideo"
1943 eatgq_decoder_select="aandcttables"
1944 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
1945 exr_decoder_select="zlib"
1946 ffv1_decoder_select="golomb rangecoder"
1947 ffv1_encoder_select="rangecoder"
1948 ffvhuff_decoder_select="huffyuv_decoder"
1949 ffvhuff_encoder_select="huffyuv_encoder"
1950 fic_decoder_select="dsputil golomb"
1951 flac_decoder_select="golomb"
1952 flac_encoder_select="dsputil golomb lpc"
1953 flashsv_decoder_select="zlib"
1954 flashsv_encoder_select="zlib"
1955 flashsv2_encoder_select="zlib"
1956 flashsv2_decoder_select="zlib"
1957 flv_decoder_select="h263_decoder"
1958 flv_encoder_select="h263_encoder"
1959 fourxm_decoder_select="dsputil"
1960 fraps_decoder_select="dsputil huffman"
1961 g2m_decoder_select="dsputil zlib"
1962 g729_decoder_select="dsputil"
1963 h261_decoder_select="error_resilience mpegvideo"
1964 h261_encoder_select="aandcttables mpegvideoenc"
1965 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1966 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1967 h263i_decoder_select="h263_decoder"
1968 h263p_encoder_select="h263_encoder"
1969 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1970 h264_decoder_suggest="error_resilience"
1971 hevc_decoder_select="dsputil golomb videodsp"
1972 huffyuv_decoder_select="dsputil llviddsp"
1973 huffyuv_encoder_select="dsputil huffman llviddsp"
1974 iac_decoder_select="imc_decoder"
1975 imc_decoder_select="dsputil fft mdct sinewin"
1976 indeo3_decoder_select="hpeldsp"
1977 interplay_video_decoder_select="hpeldsp"
1978 jpegls_decoder_select="golomb mjpeg_decoder"
1979 jpegls_encoder_select="golomb"
1980 jv_decoder_select="dsputil"
1981 lagarith_decoder_select="dsputil"
1982 ljpeg_encoder_select="aandcttables mpegvideoenc"
1983 loco_decoder_select="golomb"
1984 mdec_decoder_select="dsputil error_resilience mpegvideo"
1985 metasound_decoder_select="lsp mdct sinewin"
1986 mimic_decoder_select="dsputil hpeldsp"
1987 mjpeg_decoder_select="dsputil hpeldsp exif"
1988 mjpeg_encoder_select="aandcttables mpegvideoenc"
1989 mjpegb_decoder_select="mjpeg_decoder"
1990 mlp_decoder_select="mlp_parser"
1991 motionpixels_decoder_select="dsputil"
1992 mp1_decoder_select="mpegaudio"
1993 mp1float_decoder_select="mpegaudio"
1994 mp2_decoder_select="mpegaudio"
1995 mp2float_decoder_select="mpegaudio"
1996 mp3_decoder_select="mpegaudio"
1997 mp3adu_decoder_select="mpegaudio"
1998 mp3adufloat_decoder_select="mpegaudio"
1999 mp3float_decoder_select="mpegaudio"
2000 mp3on4_decoder_select="mpegaudio"
2001 mp3on4float_decoder_select="mpegaudio"
2002 mpc7_decoder_select="dsputil mpegaudiodsp"
2003 mpc8_decoder_select="mpegaudiodsp"
2004 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2005 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2006 mpeg1video_decoder_select="error_resilience mpegvideo"
2007 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2008 mpeg2video_decoder_select="error_resilience mpegvideo"
2009 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2010 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2011 mpeg4_encoder_select="h263_encoder"
2012 msmpeg4v1_decoder_select="h263_decoder"
2013 msmpeg4v2_decoder_select="h263_decoder"
2014 msmpeg4v2_encoder_select="h263_encoder"
2015 msmpeg4v3_decoder_select="h263_decoder"
2016 msmpeg4v3_encoder_select="h263_encoder"
2017 mss2_decoder_select="error_resilience vc1_decoder"
2018 mxpeg_decoder_select="mjpeg_decoder"
2019 nellymoser_decoder_select="mdct sinewin"
2020 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2021 nuv_decoder_select="dsputil lzo"
2022 png_decoder_select="zlib"
2023 png_encoder_select="dsputil zlib"
2024 prores_decoder_select="dsputil"
2025 prores_encoder_select="dsputil"
2026 qcelp_decoder_select="lsp"
2027 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2028 ra_144_encoder_select="audio_frame_queue lpc"
2029 ralf_decoder_select="golomb"
2030 rtjpeg_decoder_select="dsputil"
2031 rv10_decoder_select="error_resilience h263_decoder h263dsp"
2032 rv10_encoder_select="h263_encoder"
2033 rv20_decoder_select="error_resilience h263_decoder h263dsp"
2034 rv20_encoder_select="h263_encoder"
2035 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2036 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2037 shorten_decoder_select="golomb"
2038 sipr_decoder_select="lsp"
2039 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
2040 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
2041 sonic_decoder_select="golomb rangecoder"
2042 sonic_encoder_select="golomb rangecoder"
2043 sonic_ls_encoder_select="golomb"
2044 sp5x_decoder_select="mjpeg_decoder"
2045 svq1_decoder_select="hpeldsp"
2046 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2047 svq3_decoder_select="h264_decoder hpeldsp mpegvideo"
2048 svq3_decoder_suggest="zlib"
2049 tak_decoder_select="dsputil"
2050 theora_decoder_select="vp3_decoder"
2051 thp_decoder_select="mjpeg_decoder"
2052 tiff_decoder_suggest="zlib"
2053 tiff_encoder_suggest="zlib"
2054 truehd_decoder_select="mlp_parser"
2055 truemotion2_decoder_select="dsputil"
2056 truespeech_decoder_select="dsputil"
2057 tscc_decoder_select="zlib"
2058 twinvq_decoder_select="mdct lsp sinewin"
2059 utvideo_decoder_select="dsputil"
2060 utvideo_encoder_select="dsputil huffman"
2061 vble_decoder_select="dsputil"
2062 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
2063 vc1image_decoder_select="vc1_decoder"
2064 vorbis_decoder_select="mdct"
2065 vorbis_encoder_select="mdct"
2066 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2067 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2068 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2069 vp6a_decoder_select="vp6_decoder"
2070 vp6f_decoder_select="vp6_decoder"
2071 vp8_decoder_select="h264pred videodsp"
2072 vp9_decoder_select="videodsp"
2073 webp_decoder_select="vp8_decoder"
2074 wmapro_decoder_select="mdct sinewin"
2075 wmav1_decoder_select="mdct sinewin"
2076 wmav1_encoder_select="mdct sinewin"
2077 wmav2_decoder_select="mdct sinewin"
2078 wmav2_encoder_select="mdct sinewin"
2079 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2080 wmv1_decoder_select="h263_decoder"
2081 wmv1_encoder_select="h263_encoder"
2082 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2083 wmv2_encoder_select="h263_encoder"
2084 wmv3_decoder_select="vc1_decoder"
2085 wmv3image_decoder_select="wmv3_decoder"
2086 zerocodec_decoder_select="zlib"
2087 zlib_decoder_select="zlib"
2088 zlib_encoder_select="zlib"
2089 zmbv_decoder_select="zlib"
2090 zmbv_encoder_select="zlib"
2091
2092 # hardware accelerators
2093 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2094 dxva2_deps="dxva2api_h"
2095 vaapi_deps="va_va_h"
2096 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2097 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2098 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2099 xvmc_deps="X11_extensions_XvMClib_h"
2100
2101 h263_vaapi_hwaccel_deps="vaapi"
2102 h263_vaapi_hwaccel_select="h263_decoder"
2103 h263_vdpau_hwaccel_deps="vdpau"
2104 h263_vdpau_hwaccel_select="h263_decoder"
2105 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2106 h264_dxva2_hwaccel_deps="dxva2"
2107 h264_dxva2_hwaccel_select="h264_decoder"
2108 h264_vaapi_hwaccel_deps="vaapi"
2109 h264_vaapi_hwaccel_select="h264_decoder"
2110 h264_vda_decoder_deps="vda"
2111 h264_vda_decoder_select="h264_decoder"
2112 h264_vda_hwaccel_deps="vda"
2113 h264_vda_hwaccel_select="h264_decoder"
2114 h264_vdpau_decoder_deps="vdpau"
2115 h264_vdpau_decoder_select="h264_decoder"
2116 h264_vdpau_hwaccel_deps="vdpau"
2117 h264_vdpau_hwaccel_select="h264_decoder"
2118 mpeg_vdpau_decoder_deps="vdpau"
2119 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2120 mpeg_xvmc_hwaccel_deps="xvmc"
2121 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2122 mpeg1_vdpau_decoder_deps="vdpau"
2123 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2124 mpeg1_vdpau_hwaccel_deps="vdpau"
2125 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2126 mpeg1_xvmc_hwaccel_deps="xvmc"
2127 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2128 mpeg2_crystalhd_decoder_select="crystalhd"
2129 mpeg2_dxva2_hwaccel_deps="dxva2"
2130 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2131 mpeg2_vaapi_hwaccel_deps="vaapi"
2132 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2133 mpeg2_vdpau_hwaccel_deps="vdpau"
2134 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2135 mpeg2_xvmc_hwaccel_deps="xvmc"
2136 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2137 mpeg4_crystalhd_decoder_select="crystalhd"
2138 mpeg4_vaapi_hwaccel_deps="vaapi"
2139 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2140 mpeg4_vdpau_decoder_deps="vdpau"
2141 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2142 mpeg4_vdpau_hwaccel_deps="vdpau"
2143 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2144 msmpeg4_crystalhd_decoder_select="crystalhd"
2145 vc1_crystalhd_decoder_select="crystalhd"
2146 vc1_dxva2_hwaccel_deps="dxva2"
2147 vc1_dxva2_hwaccel_select="vc1_decoder"
2148 vc1_vaapi_hwaccel_deps="vaapi"
2149 vc1_vaapi_hwaccel_select="vc1_decoder"
2150 vc1_vdpau_decoder_deps="vdpau"
2151 vc1_vdpau_decoder_select="vc1_decoder"
2152 vc1_vdpau_hwaccel_deps="vdpau"
2153 vc1_vdpau_hwaccel_select="vc1_decoder"
2154 wmv3_crystalhd_decoder_select="crystalhd"
2155 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2156 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2157 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2158 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2159
2160 # parsers
2161 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
2162 hevc_parser_select="hevc_decoder"
2163 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
2164 mpegvideo_parser_select="error_resilience mpegvideo"
2165 vc1_parser_select="mpegvideo"
2166
2167 # external libraries
2168 libaacplus_encoder_deps="libaacplus"
2169 libcelt_decoder_deps="libcelt"
2170 libfaac_encoder_deps="libfaac"
2171 libfaac_encoder_select="audio_frame_queue"
2172 libfdk_aac_decoder_deps="libfdk_aac"
2173 libfdk_aac_encoder_deps="libfdk_aac"
2174 libfdk_aac_encoder_select="audio_frame_queue"
2175 libgme_demuxer_deps="libgme"
2176 libgsm_decoder_deps="libgsm"
2177 libgsm_encoder_deps="libgsm"
2178 libgsm_ms_decoder_deps="libgsm"
2179 libgsm_ms_encoder_deps="libgsm"
2180 libilbc_decoder_deps="libilbc"
2181 libilbc_encoder_deps="libilbc"
2182 libmodplug_demuxer_deps="libmodplug"
2183 libmp3lame_encoder_deps="libmp3lame"
2184 libmp3lame_encoder_select="audio_frame_queue"
2185 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2186 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2187 libopencore_amrnb_encoder_select="audio_frame_queue"
2188 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2189 libopenjpeg_decoder_deps="libopenjpeg"
2190 libopenjpeg_encoder_deps="libopenjpeg"
2191 libopus_decoder_deps="libopus"
2192 libopus_encoder_deps="libopus"
2193 libopus_encoder_select="audio_frame_queue"
2194 libquvi_demuxer_deps="libquvi"
2195 libschroedinger_decoder_deps="libschroedinger"
2196 libschroedinger_encoder_deps="libschroedinger"
2197 libshine_encoder_deps="libshine"
2198 libshine_encoder_select="audio_frame_queue"
2199 libspeex_decoder_deps="libspeex"
2200 libspeex_encoder_deps="libspeex"
2201 libspeex_encoder_select="audio_frame_queue"
2202 libstagefright_h264_decoder_deps="libstagefright_h264"
2203 libtheora_encoder_deps="libtheora"
2204 libtwolame_encoder_deps="libtwolame"
2205 libvo_aacenc_encoder_deps="libvo_aacenc"
2206 libvo_aacenc_encoder_select="audio_frame_queue"
2207 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2208 libvorbis_decoder_deps="libvorbis"
2209 libvorbis_encoder_deps="libvorbis"
2210 libvorbis_encoder_select="audio_frame_queue"
2211 libvpx_vp8_decoder_deps="libvpx"
2212 libvpx_vp8_encoder_deps="libvpx"
2213 libvpx_vp9_decoder_deps="libvpx"
2214 libvpx_vp9_encoder_deps="libvpx"
2215 libwavpack_encoder_deps="libwavpack"
2216 libwebp_encoder_deps="libwebp"
2217 libx264_encoder_deps="libx264"
2218 libx264rgb_encoder_deps="libx264"
2219 libx265_encoder_deps="libx265"
2220 libxavs_encoder_deps="libxavs"
2221 libxvid_encoder_deps="libxvid"
2222 libutvideo_decoder_deps="libutvideo"
2223 libutvideo_encoder_deps="libutvideo"
2224 libzvbi_teletext_decoder_deps="libzvbi"
2225
2226 # demuxers / muxers
2227 ac3_demuxer_select="ac3_parser"
2228 asf_demuxer_select="riffdec"
2229 asf_muxer_select="riffenc"
2230 asf_stream_muxer_select="asf_muxer"
2231 avi_demuxer_select="riffdec"
2232 avi_muxer_select="riffenc"
2233 avisynth_demuxer_deps="avisynth"
2234 avisynth_demuxer_select="riffdec"
2235 caf_demuxer_select="riffdec"
2236 dirac_demuxer_select="dirac_parser"
2237 dts_demuxer_select="dca_parser"
2238 dtshd_demuxer_select="dca_parser"
2239 dxa_demuxer_select="riffdec"
2240 eac3_demuxer_select="ac3_parser"
2241 f4v_muxer_select="mov_muxer"
2242 flac_demuxer_select="flac_parser"
2243 hds_muxer_select="flv_muxer"
2244 hls_muxer_select="mpegts_muxer"
2245 ipod_muxer_select="mov_muxer"
2246 ismv_muxer_select="mov_muxer"
2247 libnut_demuxer_deps="libnut"
2248 libnut_muxer_deps="libnut"
2249 matroska_audio_muxer_select="matroska_muxer"
2250 matroska_demuxer_select="riffdec"
2251 matroska_demuxer_suggest="bzlib lzo zlib"
2252 matroska_muxer_select="riffenc"
2253 mmf_muxer_select="riffenc"
2254 mov_demuxer_select="riffdec"
2255 mov_demuxer_suggest="zlib"
2256 mov_muxer_select="riffenc rtpenc_chain"
2257 mp3_demuxer_select="mpegaudio_parser"
2258 mp4_muxer_select="mov_muxer"
2259 mpegts_muxer_select="adts_muxer latm_muxer"
2260 mpegtsraw_demuxer_select="mpegts_demuxer"
2261 mxf_d10_muxer_select="mxf_muxer"
2262 nut_muxer_select="riffenc"
2263 nuv_demuxer_select="riffdec"
2264 ogg_demuxer_select="golomb"
2265 psp_muxer_select="mov_muxer"
2266 rtp_demuxer_select="sdp_demuxer"
2267 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2268 rtsp_demuxer_select="http_protocol rtpdec"
2269 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2270 sap_demuxer_select="sdp_demuxer"
2271 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2272 sdp_demuxer_select="rtpdec"
2273 smoothstreaming_muxer_select="ismv_muxer"
2274 spdif_muxer_select="aac_parser"
2275 tak_demuxer_select="tak_parser"
2276 tg2_muxer_select="mov_muxer"
2277 tgp_muxer_select="mov_muxer"
2278 vobsub_demuxer_select="mpegps_demuxer"
2279 w64_demuxer_select="wav_demuxer"
2280 w64_muxer_select="wav_muxer"
2281 wav_demuxer_select="riffdec"
2282 wav_muxer_select="riffenc"
2283 webm_muxer_select="riffenc"
2284 wtv_demuxer_select="riffdec"
2285 wtv_muxer_select="riffenc"
2286 xmv_demuxer_select="riffdec"
2287 xwma_demuxer_select="riffdec"
2288
2289 # indevs / outdevs
2290 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2291 alsa_outdev_deps="alsa_asoundlib_h"
2292 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2293 caca_outdev_deps="libcaca"
2294 decklink_outdev_deps="decklink pthreads"
2295 decklink_outdev_extralibs="-lstdc++"
2296 dshow_indev_deps="IBaseFilter"
2297 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2298 dv1394_indev_deps="dv1394"
2299 dv1394_indev_select="dv_demuxer"
2300 fbdev_indev_deps="linux_fb_h"
2301 fbdev_outdev_deps="linux_fb_h"
2302 iec61883_indev_deps="libiec61883"
2303 jack_indev_deps="jack_jack_h sem_timedwait"
2304 lavfi_indev_deps="avfilter"
2305 libcdio_indev_deps="libcdio"
2306 libdc1394_indev_deps="libdc1394"
2307 libv4l2_indev_deps="libv4l2"
2308 openal_indev_deps="openal"
2309 opengl_outdev_deps="opengl"
2310 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2311 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2312 pulse_indev_deps="libpulse"
2313 pulse_outdev_deps="libpulse"
2314 sdl_outdev_deps="sdl"
2315 sndio_indev_deps="sndio_h"
2316 sndio_outdev_deps="sndio_h"
2317 v4l_indev_deps="linux_videodev_h"
2318 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2319 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2320 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2321 vfwcap_indev_extralibs="-lavicap32"
2322 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2323 xv_outdev_extralibs="-lXv -lX11 -lXext"
2324 x11grab_indev_deps="x11grab"
2325
2326 # protocols
2327 bluray_protocol_deps="libbluray"
2328 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2329 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2330 ffrtmpcrypt_protocol_select="tcp_protocol"
2331 ffrtmphttp_protocol_deps="!librtmp_protocol"
2332 ffrtmphttp_protocol_select="http_protocol"
2333 ftp_protocol_select="tcp_protocol"
2334 gopher_protocol_select="network"
2335 http_protocol_select="tcp_protocol"
2336 httpproxy_protocol_select="tcp_protocol"
2337 https_protocol_select="tls_protocol"
2338 librtmp_protocol_deps="librtmp"
2339 librtmpe_protocol_deps="librtmp"
2340 librtmps_protocol_deps="librtmp"
2341 librtmpt_protocol_deps="librtmp"
2342 librtmpte_protocol_deps="librtmp"
2343 libssh_protocol_deps="libssh"
2344 mmsh_protocol_select="http_protocol"
2345 mmst_protocol_select="network"
2346 rtmp_protocol_deps="!librtmp_protocol"
2347 rtmp_protocol_select="tcp_protocol"
2348 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2349 rtmps_protocol_deps="!librtmp_protocol"
2350 rtmps_protocol_select="tls_protocol"
2351 rtmpt_protocol_select="ffrtmphttp_protocol"
2352 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2353 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2354 rtp_protocol_select="udp_protocol"
2355 sctp_protocol_deps="struct_sctp_event_subscribe"
2356 sctp_protocol_select="network"
2357 srtp_protocol_select="rtp_protocol"
2358 tcp_protocol_select="network"
2359 tls_protocol_deps_any="openssl gnutls"
2360 tls_protocol_select="tcp_protocol"
2361 udp_protocol_select="network"
2362 unix_protocol_deps="sys_un_h"
2363 unix_protocol_select="network"
2364
2365 # filters
2366 aconvert_filter_deps="swresample"
2367 amovie_filter_deps="avcodec avformat"
2368 aresample_filter_deps="swresample"
2369 ass_filter_deps="libass"
2370 asyncts_filter_deps="avresample"
2371 atempo_filter_deps="avcodec"
2372 atempo_filter_select="rdft"
2373 azmq_filter_deps="libzmq"
2374 blackframe_filter_deps="gpl"
2375 boxblur_filter_deps="gpl"
2376 colormatrix_filter_deps="gpl"
2377 cropdetect_filter_deps="gpl"
2378 dctdnoiz_filter_deps="avcodec"
2379 dctdnoiz_filter_select="dct"
2380 delogo_filter_deps="gpl"
2381 deshake_filter_deps="avcodec"
2382 deshake_filter_select="dsputil"
2383 drawtext_filter_deps="libfreetype"
2384 ebur128_filter_deps="gpl"
2385 flite_filter_deps="libflite"
2386 frei0r_filter_deps="frei0r dlopen"
2387 frei0r_filter_extralibs='$ldl'
2388 frei0r_src_filter_deps="frei0r dlopen"
2389 frei0r_src_filter_extralibs='$ldl'
2390 geq_filter_deps="gpl"
2391 histeq_filter_deps="gpl"
2392 hqdn3d_filter_deps="gpl"
2393 interlace_filter_deps="gpl"
2394 kerndeint_filter_deps="gpl"
2395 ladspa_filter_deps="ladspa dlopen"
2396 mcdeint_filter_deps="avcodec gpl"
2397 movie_filter_deps="avcodec avformat"
2398 mp_filter_deps="gpl avcodec swscale inline_asm"
2399 mpdecimate_filter_deps="gpl avcodec"
2400 mptestsrc_filter_deps="gpl"
2401 negate_filter_deps="lut_filter"
2402 perspective_filter_deps="gpl"
2403 ocv_filter_deps="libopencv"
2404 owdenoise_filter_deps="gpl"
2405 pan_filter_deps="swresample"
2406 phase_filter_deps="gpl"
2407 pp_filter_deps="gpl postproc"
2408 pullup_filter_deps="gpl"
2409 removelogo_filter_deps="avcodec avformat swscale"
2410 resample_filter_deps="avresample"
2411 sab_filter_deps="gpl swscale"
2412 scale_filter_deps="swscale"
2413 smartblur_filter_deps="gpl swscale"
2414 showspectrum_filter_deps="avcodec"
2415 showspectrum_filter_select="rdft"
2416 spp_filter_deps="gpl avcodec"
2417 spp_filter_select="fft"
2418 stereo3d_filter_deps="gpl"
2419 subtitles_filter_deps="avformat avcodec libass"
2420 super2xsai_filter_deps="gpl"
2421 tinterlace_filter_deps="gpl"
2422 vidstabdetect_filter_deps="libvidstab"
2423 vidstabtransform_filter_deps="libvidstab"
2424 pixfmts_super2xsai_test_deps="super2xsai_filter"
2425 tinterlace_merge_test_deps="tinterlace_filter"
2426 tinterlace_pad_test_deps="tinterlace_filter"
2427 zmq_filter_deps="libzmq"
2428
2429 # examples
2430 avio_reading="avformat avcodec avutil"
2431 avcodec_example_deps="avcodec avutil"
2432 demuxing_decoding_example_deps="avcodec avformat avutil"
2433 filter_audio_example_deps="avfilter avutil"
2434 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2435 filtering_video_example_deps="avfilter avcodec avformat avutil"
2436 metadata_example_deps="avformat avutil"
2437 muxing_example_deps="avcodec avformat avutil swscale"
2438 remuxing_example_deps="avcodec avformat avutil"
2439 resampling_audio_example_deps="avutil swresample"
2440 scaling_video_example_deps="avutil swscale"
2441 transcode_aac_example_deps="avcodec avformat swresample"
2442
2443 # libraries
2444 avcodec_deps="avutil"
2445 avdevice_deps="avutil avcodec avformat"
2446 avfilter_deps="avutil"
2447 avformat_deps="avutil avcodec"
2448 avresample_deps="avutil"
2449 postproc_deps="avutil gpl"
2450 swscale_deps="avutil"
2451
2452 # programs
2453 ffmpeg_deps="avcodec avfilter avformat swresample"
2454 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2455                null_filter
2456                setpts_filter trim_filter"
2457 ffplay_deps="avcodec avformat swscale swresample sdl"
2458 ffplay_libs='$sdl_libs'
2459 ffplay_select="rdft crop_filter"
2460 ffprobe_deps="avcodec avformat"
2461 ffserver_deps="avformat fork sarestart"
2462 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2463
2464 # documentation
2465 podpages_deps="perl"
2466 manpages_deps="perl pod2man"
2467 htmlpages_deps="perl texi2html"
2468 txtpages_deps="perl makeinfo"
2469 doc_deps_any="manpages htmlpages podpages txtpages"
2470
2471 # default parameters
2472
2473 logfile="config.log"
2474
2475 # installation paths
2476 prefix_default="/usr/local"
2477 bindir_default='${prefix}/bin'
2478 datadir_default='${prefix}/share/ffmpeg'
2479 docdir_default='${prefix}/share/doc/ffmpeg'
2480 incdir_default='${prefix}/include'
2481 libdir_default='${prefix}/lib'
2482 mandir_default='${prefix}/share/man'
2483 shlibdir_default="$libdir_default"
2484
2485 # toolchain
2486 ar_default="ar"
2487 cc_default="gcc"
2488 cxx_default="g++"
2489 host_cc_default="gcc"
2490 cp_f="cp -f"
2491 install="install"
2492 ln_s="ln -s -f"
2493 nm_default="nm -g"
2494 objformat="elf"
2495 pkg_config_default=pkg-config
2496 ranlib="ranlib"
2497 strip_default="strip"
2498 yasmexe_default="yasm"
2499 windres_default="windres"
2500
2501 nogas=":"
2502
2503 # OS
2504 target_os_default=$(tolower $(uname -s))
2505 host_os=$target_os_default
2506
2507 # machine
2508 if test "$target_os_default" = aix; then
2509     arch_default=$(uname -p)
2510 else
2511     arch_default=$(uname -m)
2512 fi
2513 cpu="generic"
2514
2515 # configurable options
2516 enable $PROGRAM_LIST
2517 enable $DOCUMENT_LIST
2518 enable $EXAMPLE_LIST
2519 enable $(filter_out avresample $LIBRARY_LIST)
2520 enable stripping
2521
2522 enable asm
2523 enable debug
2524 enable doc
2525 enable optimizations
2526 enable runtime_cpudetect
2527 enable safe_bitstream_reader
2528 enable static
2529 enable swscale_alpha
2530
2531 # Enable hwaccels by default.
2532 enable dxva2 vaapi vdpau xvmc
2533 enable xlib
2534
2535 # build settings
2536 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2537 LIBPREF="lib"
2538 LIBSUF=".a"
2539 FULLNAME='$(NAME)$(BUILDSUF)'
2540 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2541 SLIBPREF="lib"
2542 SLIBSUF=".so"
2543 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2544 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2545 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2546 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2547 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2548 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2549
2550 asflags_filter=echo
2551 cflags_filter=echo
2552 ldflags_filter=echo
2553
2554 AS_C='-c'
2555 AS_O='-o $@'
2556 CC_C='-c'
2557 CC_E='-E -o $@'
2558 CC_O='-o $@'
2559 CXX_C='-c'
2560 CXX_O='-o $@'
2561 LD_O='-o $@'
2562 LD_LIB='-l%'
2563 LD_PATH='-L'
2564 HOSTCC_C='-c'
2565 HOSTCC_E='-E -o $@'
2566 HOSTCC_O='-o $@'
2567 HOSTLD_O='-o $@'
2568
2569 host_libs='-lm'
2570 host_cflags_filter=echo
2571 host_ldflags_filter=echo
2572
2573 target_path='$(CURDIR)'
2574
2575 # since the object filename is not given with the -MM flag, the compiler
2576 # is only able to print the basename, and we must add the path ourselves
2577 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2578 DEPFLAGS='-MM'
2579
2580 # find source path
2581 if test -f configure; then
2582     source_path=.
2583 else
2584     source_path=$(cd $(dirname "$0"); pwd)
2585     echo "$source_path" | grep -q '[[:blank:]]' &&
2586         die "Out of tree builds are impossible with whitespace in source path."
2587     test -e "$source_path/config.h" &&
2588         die "Out of tree builds are impossible with config.h in source dir."
2589 fi
2590
2591 for v in "$@"; do
2592     r=${v#*=}
2593     l=${v%"$r"}
2594     r=$(sh_quote "$r")
2595     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2596 done
2597
2598 find_things(){
2599     thing=$1
2600     pattern=$2
2601     file=$source_path/$3
2602     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2603 }
2604
2605 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2606 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2607 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2608 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2609 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2610 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2611 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2612 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2613 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2614 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2615 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2616
2617 ALL_COMPONENTS="
2618     $BSF_LIST
2619     $DECODER_LIST
2620     $DEMUXER_LIST
2621     $ENCODER_LIST
2622     $FILTER_LIST
2623     $HWACCEL_LIST
2624     $INDEV_LIST
2625     $MUXER_LIST
2626     $OUTDEV_LIST
2627     $PARSER_LIST
2628     $PROTOCOL_LIST
2629 "
2630
2631 for n in $COMPONENT_LIST; do
2632     v=$(toupper ${n%s})_LIST
2633     eval enable \$$v
2634     eval ${n}_if_any="\$$v"
2635 done
2636
2637 enable $ARCH_EXT_LIST
2638
2639 die_unknown(){
2640     echo "Unknown option \"$1\"."
2641     echo "See $0 --help for available options."
2642     exit 1
2643 }
2644
2645 print_3_columns() {
2646     cat | tr ' ' '\n' | sort | pr -r -3 -t
2647 }
2648
2649 show_list() {
2650     suffix=_$1
2651     shift
2652     echo $* | sed s/$suffix//g | print_3_columns
2653     exit 0
2654 }
2655
2656 rand_list(){
2657     IFS=', '
2658     set -- $*
2659     unset IFS
2660     for thing; do
2661         comp=${thing%:*}
2662         prob=${thing#$comp}
2663         prob=${prob#:}
2664         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2665         echo "prob ${prob:-0.5}"
2666         printf '%s\n' $comp
2667     done
2668 }
2669
2670 do_random(){
2671     action=$1
2672     shift
2673     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2674     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2675 }
2676
2677 for opt do
2678     optval="${opt#*=}"
2679     case "$opt" in
2680         --extra-ldflags=*)
2681             add_ldflags $optval
2682         ;;
2683         --extra-libs=*)
2684             add_extralibs $optval
2685         ;;
2686         --disable-devices)
2687             disable $INDEV_LIST $OUTDEV_LIST
2688         ;;
2689         --enable-debug=*)
2690             debuglevel="$optval"
2691         ;;
2692         --disable-programs)
2693             disable $PROGRAM_LIST
2694         ;;
2695         --disable-everything)
2696             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2697         ;;
2698         --disable-all)
2699             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2700             disable $LIBRARY_LIST $PROGRAM_LIST doc
2701         ;;
2702         --enable-random|--disable-random)
2703             action=${opt%%-random}
2704             do_random ${action#--} $COMPONENT_LIST
2705         ;;
2706         --enable-random=*|--disable-random=*)
2707             action=${opt%%-random=*}
2708             do_random ${action#--} $optval
2709         ;;
2710         --enable-*=*|--disable-*=*)
2711             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2712             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2713             eval list=\$$(toupper $thing)_LIST
2714             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2715             list=$(filter "$name" $list)
2716             [ "$list" = "" ] && warn "Option $opt did not match anything"
2717             $action $list
2718         ;;
2719         --enable-?*|--disable-?*)
2720             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2721             if is_in $option $COMPONENT_LIST; then
2722                 test $action = disable && action=unset
2723                 eval $action \$$(toupper ${option%s})_LIST
2724             elif is_in $option $CMDLINE_SELECT; then
2725                 $action $option
2726             else
2727                 die_unknown $opt
2728             fi
2729         ;;
2730         --list-*)
2731             NAME="${opt#--list-}"
2732             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2733             NAME=${NAME%s}
2734             eval show_list $NAME \$$(toupper $NAME)_LIST
2735         ;;
2736         --help|-h) show_help
2737         ;;
2738         --fatal-warnings) enable fatal_warnings
2739         ;;
2740         *)
2741             optname="${opt%%=*}"
2742             optname="${optname#--}"
2743             optname=$(echo "$optname" | sed 's/-/_/g')
2744             if is_in $optname $CMDLINE_SET; then
2745                 eval $optname='$optval'
2746             elif is_in $optname $CMDLINE_APPEND; then
2747                 append $optname "$optval"
2748             else
2749                 die_unknown $opt
2750             fi
2751         ;;
2752     esac
2753 done
2754
2755 disabled logging && logfile=/dev/null
2756
2757 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2758 set >> $logfile
2759
2760 test -n "$cross_prefix" && enable cross_compile
2761
2762 if enabled cross_compile; then
2763     test -n "$arch" && test -n "$target_os" ||
2764         die "Must specify target arch and OS when cross-compiling"
2765 fi
2766
2767 ar_default="${cross_prefix}${ar_default}"
2768 cc_default="${cross_prefix}${cc_default}"
2769 cxx_default="${cross_prefix}${cxx_default}"
2770 nm_default="${cross_prefix}${nm_default}"
2771 pkg_config_default="${cross_prefix}${pkg_config_default}"
2772 ranlib="${cross_prefix}${ranlib}"
2773 strip_default="${cross_prefix}${strip_default}"
2774 windres_default="${cross_prefix}${windres_default}"
2775
2776 sysinclude_default="${sysroot}/usr/include"
2777
2778 test -n "$valgrind" && toolchain="valgrind-memcheck"
2779
2780 case "$toolchain" in
2781     clang-asan)
2782         cc_default="clang"
2783         add_cflags  -fsanitize=address
2784         add_ldflags -fsanitize=address
2785     ;;
2786     clang-tsan)
2787         cc_default="clang"
2788         add_cflags  -fsanitize=thread -pie
2789         add_ldflags -fsanitize=thread -pie
2790     ;;
2791     clang-usan)
2792         cc_default="clang"
2793         add_cflags  -fsanitize=undefined
2794         add_ldflags -fsanitize=undefined
2795     ;;
2796     gcc-asan)
2797         cc_default="gcc"
2798         add_cflags  -fsanitize=address
2799         add_ldflags -fsanitize=address
2800     ;;
2801     gcc-tsan)
2802         cc_default="gcc"
2803         add_cflags  -fsanitize=thread -pie -fPIC
2804         add_ldflags -fsanitize=thread -pie -fPIC
2805     ;;
2806     gcc-usan)
2807         cc_default="gcc"
2808         add_cflags  -fsanitize=undefined
2809         add_ldflags -fsanitize=undefined
2810     ;;
2811     valgrind-massif)
2812         target_exec_default=${valgrind:-"valgrind"}
2813         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"
2814     ;;
2815     valgrind-memcheck)
2816         target_exec_default=${valgrind:-"valgrind"}
2817         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2818     ;;
2819     msvc)
2820         # Check whether the current MSVC version needs the C99 converter.
2821         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2822         # support enough of C99 to build ffmpeg. Default to the new
2823         # behaviour if the regexp was unable to match anything, since this
2824         # successfully parses the version number of existing supported
2825         # versions that require the converter (MSVC 2010 and 2012).
2826         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2827         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2828             cc_default="cl"
2829         else
2830             cc_default="c99wrap cl"
2831         fi
2832         ld_default="link"
2833         nm_default="dumpbin -symbols"
2834         ar_default="lib"
2835         target_os_default="win32"
2836         # Use a relative path for TMPDIR. This makes sure all the
2837         # ffconf temp files are written with a relative path, avoiding
2838         # issues with msys/win32 path conversion for MSVC parameters
2839         # such as -Fo<file> or -out:<file>.
2840         TMPDIR=.
2841     ;;
2842     icl)
2843         cc_default="icl"
2844         ld_default="xilink"
2845         nm_default="dumpbin -symbols"
2846         ar_default="xilib"
2847         target_os_default="win32"
2848         TMPDIR=.
2849     ;;
2850     gcov)
2851         add_cflags  -fprofile-arcs -ftest-coverage
2852         add_ldflags -fprofile-arcs -ftest-coverage
2853     ;;
2854     hardened)
2855         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2856         add_ldflags -Wl,-z,relro -Wl,-z,now
2857     ;;
2858     ?*)
2859         die "Unknown toolchain $toolchain"
2860     ;;
2861 esac
2862
2863 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2864 enabled cross_compile || host_cc_default=$cc
2865 set_default host_cc
2866
2867 if ! $pkg_config --version >/dev/null 2>&1; then
2868     warn "$pkg_config not found, library detection may fail."
2869     pkg_config=false
2870 fi
2871
2872 exesuf() {
2873     case $1 in
2874         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2875     esac
2876 }
2877
2878 EXESUF=$(exesuf $target_os)
2879 HOSTEXESUF=$(exesuf $host_os)
2880
2881 # set temporary file name
2882 : ${TMPDIR:=$TEMPDIR}
2883 : ${TMPDIR:=$TMP}
2884 : ${TMPDIR:=/tmp}
2885
2886 if [ -n "$tempprefix" ] ; then
2887     mktemp(){
2888         echo $tempprefix.${HOSTNAME}.${UID}
2889     }
2890 elif ! check_cmd mktemp -u XXXXXX; then
2891     # simple replacement for missing mktemp
2892     # NOT SAFE FOR GENERAL USE
2893     mktemp(){
2894         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2895     }
2896 fi
2897
2898 tmpfile(){
2899     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2900         (set -C; exec > $tmp) 2>/dev/null ||
2901         die "Unable to create temporary file in $TMPDIR."
2902     append TMPFILES $tmp
2903     eval $1=$tmp
2904 }
2905
2906 trap 'rm -f -- $TMPFILES' EXIT
2907
2908 tmpfile TMPASM .asm
2909 tmpfile TMPC   .c
2910 tmpfile TMPCPP .cpp
2911 tmpfile TMPE   $EXESUF
2912 tmpfile TMPH   .h
2913 tmpfile TMPO   .o
2914 tmpfile TMPS   .S
2915 tmpfile TMPSH  .sh
2916 tmpfile TMPV   .ver
2917
2918 unset -f mktemp
2919
2920 chmod +x $TMPE
2921
2922 # make sure we can execute files in $TMPDIR
2923 cat > $TMPSH 2>> $logfile <<EOF
2924 #! /bin/sh
2925 EOF
2926 chmod +x $TMPSH >> $logfile 2>&1
2927 if ! $TMPSH >> $logfile 2>&1; then
2928     cat <<EOF
2929 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2930 variable to another directory and make sure that it is not mounted noexec.
2931 EOF
2932     die "Sanity test failed."
2933 fi
2934
2935 ccc_flags(){
2936     for flag; do
2937         case $flag in
2938             -std=c99)           echo -c99                       ;;
2939             -mcpu=*)            echo -arch ${flag#*=}           ;;
2940             -mieee)             echo -ieee                      ;;
2941             -O*|-fast)          echo $flag                      ;;
2942             -fno-math-errno)    echo -assume nomath_errno       ;;
2943             -g)                 echo -g3                        ;;
2944             -Wall)              echo -msg_enable level2         ;;
2945             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2946             -Wl,*)              echo $flag                      ;;
2947             -f*|-W*)                                            ;;
2948             *)                  echo $flag                      ;;
2949         esac
2950    done
2951 }
2952
2953 cparser_flags(){
2954     for flag; do
2955         case $flag in
2956             -Wno-switch)             echo -Wno-switch-enum ;;
2957             -Wno-format-zero-length) ;;
2958             -Wdisabled-optimization) ;;
2959             -Wno-pointer-sign)       echo -Wno-other ;;
2960             *)                       echo $flag ;;
2961         esac
2962     done
2963 }
2964
2965 msvc_common_flags(){
2966     for flag; do
2967         case $flag in
2968             # In addition to specifying certain flags under the compiler
2969             # specific filters, they must be specified here as well or else the
2970             # generic catch all at the bottom will print the original flag.
2971             -Wall)                ;;
2972             -std=c99)             ;;
2973             # Common flags
2974             -fomit-frame-pointer) ;;
2975             -g)                   echo -Z7 ;;
2976             -fno-math-errno)      ;;
2977             -fno-common)          ;;
2978             -fno-signed-zeros)    ;;
2979             -fPIC)                ;;
2980             -mthumb)              ;;
2981             -march=*)             ;;
2982             -lz)                  echo zlib.lib ;;
2983             -lavifil32)           echo vfw32.lib ;;
2984             -lavicap32)           echo vfw32.lib user32.lib ;;
2985             -l*)                  echo ${flag#-l}.lib ;;
2986             *)                    echo $flag ;;
2987         esac
2988     done
2989 }
2990
2991 msvc_flags(){
2992     msvc_common_flags "$@"
2993     for flag; do
2994         case $flag in
2995             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2996                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2997                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2998                                        -wd4554 \
2999                                        -wd4273 ;;
3000         esac
3001     done
3002 }
3003
3004 icl_flags(){
3005     msvc_common_flags "$@"
3006     for flag; do
3007         case $flag in
3008             # Despite what Intel's documentation says -Wall, which is supported
3009             # on Windows, does enable remarks so disable them here.
3010             -Wall)                echo $flag -Qdiag-disable:remark ;;
3011             -std=c99)             echo -Qstd=c99 ;;
3012         esac
3013     done
3014 }
3015
3016 pgi_flags(){
3017     for flag; do
3018         case $flag in
3019             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3020             -fomit-frame-pointer) echo -Mnoframe ;;
3021             -g)                   echo -gopt ;;
3022             *)                    echo $flag ;;
3023         esac
3024     done
3025 }
3026
3027 suncc_flags(){
3028     for flag; do
3029         case $flag in
3030             -march=*|-mcpu=*)
3031                 case "${flag#*=}" in
3032                     native)                   echo -xtarget=native       ;;
3033                     v9|niagara)               echo -xarch=sparc          ;;
3034                     ultrasparc)               echo -xarch=sparcvis       ;;
3035                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3036                     i586|pentium)             echo -xchip=pentium        ;;
3037                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3038                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3039                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3040                     pentium4*)          echo -xtarget=pentium4           ;;
3041                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3042                     *-sse3)             echo -xarch=sse3                 ;;
3043                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3044                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3045                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3046                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3047                     bdver*)                    echo -xarch=avx           ;;
3048                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3049                     k8|opteron|athlon64|athlon-fx)
3050                                                echo -xarch=sse2a         ;;
3051                     athlon*)                   echo -xarch=pentium_proa  ;;
3052                 esac
3053                 ;;
3054             -std=c99)             echo -xc99              ;;
3055             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3056             -fPIC)                echo -KPIC -xcode=pic32 ;;
3057             -W*,*)                echo $flag              ;;
3058             -f*-*|-W*|-mimpure-text)                      ;;
3059             -shared)              echo -G                 ;;
3060             *)                    echo $flag              ;;
3061         esac
3062     done
3063 }
3064
3065 tms470_flags(){
3066     for flag; do
3067         case $flag in
3068             -march=*|-mcpu=*)
3069                 case "${flag#*=}" in
3070                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3071                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3072                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3073                     armv6*|arm11*)          echo -mv=6   ;;
3074                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3075                                             echo -mv=5e  ;;
3076                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3077                 esac
3078                 ;;
3079             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3080             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3081             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3082             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3083             -msoft-float)   echo --float_support=vfplib       ;;
3084             -O[0-3]|-mf=*)  echo $flag                        ;;
3085             -g)             echo -g -mn                       ;;
3086             -pds=*)         echo $flag                        ;;
3087             -D*|-I*)        echo $flag                        ;;
3088             --gcc|--abi=*)  echo $flag                        ;;
3089             -me)            echo $flag                        ;;
3090         esac
3091     done
3092 }
3093
3094 probe_cc(){
3095     pfx=$1
3096     _cc=$2
3097
3098     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3099     unset _ld_o _ldflags _ld_lib _ld_path
3100     unset _depflags _DEPCMD _DEPFLAGS
3101     _flags_filter=echo
3102
3103     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3104         true # no-op to avoid reading stdin in following checks
3105     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3106         _type=llvm_gcc
3107         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3108         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3109         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3110         _cflags_speed='-O3'
3111         _cflags_size='-Os'
3112     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3113         _type=gcc
3114         gcc_version=$($_cc --version | head -n1)
3115         gcc_basever=$($_cc -dumpversion)
3116         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3117         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3118         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3119         if ! $_cc -dumpversion | grep -q '^2\.'; then
3120             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3121         fi
3122         _cflags_speed='-O3'
3123         _cflags_size='-Os'
3124     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3125         _type=icc
3126         _ident=$($_cc --version | head -n1)
3127         _depflags='-MMD'
3128         _cflags_speed='-O3'
3129         _cflags_size='-Os'
3130         _cflags_noopt='-O1'
3131     elif $_cc -v 2>&1 | grep -q xlc; then
3132         _type=xlc
3133         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3134         _cflags_speed='-O5'
3135         _cflags_size='-O5 -qcompact'
3136     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3137         _type=ccc
3138         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3139         _DEPFLAGS='-M'
3140         _cflags_speed='-fast'
3141         _cflags_size='-O1'
3142         _flags_filter=ccc_flags
3143     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
3144         test -d "$sysroot" || die "No valid sysroot specified."
3145         _type=armcc
3146         _ident=$($_cc --vsn | head -n1)
3147         armcc_conf="$PWD/armcc.conf"
3148         $_cc --arm_linux_configure                 \
3149              --arm_linux_config_file="$armcc_conf" \
3150              --configure_sysroot="$sysroot"        \
3151              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3152              die "Error creating armcc configuration file."
3153         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3154         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3155         as_default="${cross_prefix}gcc"
3156         _depflags='-MMD'
3157         _cflags_speed='-O3'
3158         _cflags_size='-Os'
3159     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3160         _type=tms470
3161         _ident=$($_cc -version | head -n1 | tr -s ' ')
3162         _flags='--gcc --abi=eabi -me'
3163         _cc_e='-ppl -fe=$@'
3164         _cc_o='-fe=$@'
3165         _depflags='-ppa -ppd=$(@:.o=.d)'
3166         _cflags_speed='-O3 -mf=5'
3167         _cflags_size='-O3 -mf=2'
3168         _flags_filter=tms470_flags
3169     elif $_cc -v 2>&1 | grep -q clang; then
3170         _type=clang
3171         _ident=$($_cc --version | head -n1)
3172         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3173         _cflags_speed='-O3'
3174         _cflags_size='-Os'
3175     elif $_cc -V 2>&1 | grep -q Sun; then
3176         _type=suncc
3177         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3178         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3179         _DEPFLAGS='-xM1 -xc99'
3180         _ldflags='-std=c99'
3181         _cflags_speed='-O5'
3182         _cflags_size='-O5 -xspace'
3183         _flags_filter=suncc_flags
3184     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3185         _type=pathscale
3186         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3187         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3188         _cflags_speed='-O2'
3189         _cflags_size='-Os'
3190         _flags_filter='filter_out -Wdisabled-optimization'
3191     elif $_cc -v 2>&1 | grep -q Open64; then
3192         _type=open64
3193         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3194         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3195         _cflags_speed='-O2'
3196         _cflags_size='-Os'
3197         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3198     elif $_cc -V 2>&1 | grep -q Portland; then
3199         _type=pgi
3200         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3201         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3202         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3203         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3204         _cflags_noopt="-O"
3205         _flags_filter=pgi_flags
3206     elif $_cc 2>&1 | grep -q Microsoft; then
3207         _type=msvc
3208         _ident=$($cc 2>&1 | head -n1)
3209         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3210         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3211         _cflags_speed="-O2"
3212         _cflags_size="-O1"
3213         if $_cc 2>&1 | grep -q Linker; then
3214             _ld_o='-out:$@'
3215         else
3216             _ld_o='-Fe$@'
3217         fi
3218         _cc_o='-Fo$@'
3219         _cc_e='-P -Fi$@'
3220         _flags_filter=msvc_flags
3221         _ld_lib='lib%.a'
3222         _ld_path='-libpath:'
3223         _flags='-nologo'
3224         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3225         if [ $pfx = hostcc ]; then
3226             append _cflags -Dsnprintf=_snprintf
3227         fi
3228         disable stripping
3229     elif $_cc 2>&1 | grep -q Intel; then
3230         _type=icl
3231         _ident=$($cc 2>&1 | head -n1)
3232         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3233         # Not only is O3 broken on 13.x+ but it is slower on all previous
3234         # versions (tested) as well.
3235         _cflags_speed="-O2"
3236         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3237         if $_cc 2>&1 | grep -q Linker; then
3238             _ld_o='-out:$@'
3239         else
3240             _ld_o='-Fe$@'
3241         fi
3242         _cc_o='-Fo$@'
3243         _cc_e='-P'
3244         _flags_filter=icl_flags
3245         _ld_lib='lib%.a'
3246         _ld_path='-libpath:'
3247         # -Qdiag-error to make icl error when seeing certain unknown arguments
3248         _flags='-nologo -Qdiag-error:4044,10157'
3249         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3250         # with MSVC which enables it by default.
3251         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3252         if [ $pfx = hostcc ]; then
3253             append _cflags -Dsnprintf=_snprintf
3254         fi
3255     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3256         _type=cparser
3257         _ident=$($_cc --version | head -n1)
3258         _depflags='-MMD'
3259         _cflags_speed='-O4'
3260         _cflags_size='-O2'
3261         _flags_filter=cparser_flags
3262     fi
3263
3264     eval ${pfx}_type=\$_type
3265     eval ${pfx}_ident=\$_ident
3266 }
3267
3268 set_ccvars(){
3269     eval ${1}_C=\${_cc_c-\${${1}_C}}
3270     eval ${1}_E=\${_cc_e-\${${1}_E}}
3271     eval ${1}_O=\${_cc_o-\${${1}_O}}
3272
3273     if [ -n "$_depflags" ]; then
3274         eval ${1}_DEPFLAGS=\$_depflags
3275     else
3276         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3277         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3278         eval DEP${1}FLAGS=\$_flags
3279     fi
3280 }
3281
3282 probe_cc cc "$cc"
3283 cflags_filter=$_flags_filter
3284 cflags_speed=$_cflags_speed
3285 cflags_size=$_cflags_size
3286 cflags_noopt=$_cflags_noopt
3287 add_cflags $_flags $_cflags
3288 cc_ldflags=$_ldflags
3289 set_ccvars CC
3290
3291 probe_cc hostcc "$host_cc"
3292 host_cflags_filter=$_flags_filter
3293 add_host_cflags  $_flags $_cflags
3294 set_ccvars HOSTCC
3295
3296 test -n "$cc_type" && enable $cc_type ||
3297     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3298
3299 : ${as_default:=$cc}
3300 : ${dep_cc_default:=$cc}
3301 : ${ld_default:=$cc}
3302 : ${host_ld_default:=$host_cc}
3303 set_default ar as dep_cc ld host_ld windres
3304
3305 probe_cc as "$as"
3306 asflags_filter=$_flags_filter
3307 add_asflags $_flags $_cflags
3308 set_ccvars AS
3309
3310 probe_cc ld "$ld"
3311 ldflags_filter=$_flags_filter
3312 add_ldflags $_flags $_ldflags
3313 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3314 LD_O=${_ld_o-$LD_O}
3315 LD_LIB=${_ld_lib-$LD_LIB}
3316 LD_PATH=${_ld_path-$LD_PATH}
3317
3318 probe_cc hostld "$host_ld"
3319 host_ldflags_filter=$_flags_filter
3320 add_host_ldflags $_flags $_ldflags
3321 HOSTLD_O=${_ld_o-$HOSTLD_O}
3322
3323 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3324     probe_cc depcc "$dep_cc"
3325     CCDEP=${_DEPCMD:-$DEPCMD}
3326     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3327     DEPCCFLAGS=$_flags
3328 fi
3329
3330 if $ar 2>&1 | grep -q Microsoft; then
3331     arflags="-nologo"
3332     ar_o='-out:$@'
3333 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3334     arflags="rq"
3335     ar_o='$@'
3336 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3337     arflags='-Xany -r -c'
3338     ar_o='$@'
3339 else
3340     arflags="rc"
3341     ar_o='$@'
3342 fi
3343
3344 add_cflags $extra_cflags
3345 add_cxxflags $extra_cxxflags
3346 add_asflags $extra_cflags
3347
3348 if test -n "$sysroot"; then
3349     case "$cc_type" in
3350         gcc|llvm_gcc|clang)
3351             add_cppflags --sysroot="$sysroot"
3352             add_ldflags --sysroot="$sysroot"
3353         ;;
3354         tms470)
3355             add_cppflags -I"$sysinclude"
3356             add_ldflags  --sysroot="$sysroot"
3357         ;;
3358     esac
3359 fi
3360
3361 if test "$cpu" = host; then
3362     enabled cross_compile &&
3363         die "--cpu=host makes no sense when cross-compiling."
3364
3365     case "$cc_type" in
3366         gcc|llvm_gcc)
3367             check_native(){
3368                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3369                 sed -n "/cc1.*$1=/{
3370                             s/.*$1=\\([^ ]*\\).*/\\1/
3371                             p
3372                             q
3373                         }" $TMPE
3374             }
3375             cpu=$(check_native -march || check_native -mcpu)
3376         ;;
3377     esac
3378
3379     test "${cpu:-host}" = host &&
3380         die "--cpu=host not supported with compiler $cc"
3381 fi
3382
3383 # Deal with common $arch aliases
3384 case "$arch" in
3385     aarch64|arm64)
3386         arch="aarch64"
3387     ;;
3388     arm*|iPad*|iPhone*)
3389         arch="arm"
3390     ;;
3391     mips*|IP*)
3392         arch="mips"
3393     ;;
3394     parisc*|hppa*)
3395         arch="parisc"
3396     ;;
3397     "Power Macintosh"|ppc*|powerpc*)
3398         arch="ppc"
3399     ;;
3400     s390|s390x)
3401         arch="s390"
3402     ;;
3403     sh4|sh)
3404         arch="sh4"
3405     ;;
3406     sun4u|sparc*)
3407         arch="sparc"
3408     ;;
3409     tilegx|tile-gx)
3410         arch="tilegx"
3411     ;;
3412     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3413         arch="x86"
3414     ;;
3415 esac
3416
3417 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3418 enable $arch
3419
3420 # Add processor-specific flags
3421 if enabled aarch64; then
3422
3423     case $cpu in
3424         armv*)
3425             cpuflags="-march=$cpu"
3426         ;;
3427         *)
3428             cpuflags="-mcpu=$cpu"
3429         ;;
3430     esac
3431
3432 elif enabled alpha; then
3433
3434     cpuflags="-mcpu=$cpu"
3435
3436 elif enabled arm; then
3437
3438     check_arm_arch() {
3439         check_cpp_condition stddef.h \
3440             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3441             $cpuflags
3442     }
3443
3444     probe_arm_arch() {
3445         if   check_arm_arch 4;        then echo armv4;
3446         elif check_arm_arch 4T;       then echo armv4t;
3447         elif check_arm_arch 5;        then echo armv5;
3448         elif check_arm_arch 5E;       then echo armv5e;
3449         elif check_arm_arch 5T;       then echo armv5t;
3450         elif check_arm_arch 5TE;      then echo armv5te;
3451         elif check_arm_arch 5TEJ;     then echo armv5te;
3452         elif check_arm_arch 6;        then echo armv6;
3453         elif check_arm_arch 6J;       then echo armv6j;
3454         elif check_arm_arch 6K;       then echo armv6k;
3455         elif check_arm_arch 6Z;       then echo armv6z;
3456         elif check_arm_arch 6ZK;      then echo armv6zk;
3457         elif check_arm_arch 6T2;      then echo armv6t2;
3458         elif check_arm_arch 7;        then echo armv7;
3459         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3460         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3461         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3462         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3463         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3464         fi
3465     }
3466
3467     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3468
3469     case $cpu in
3470         armv*)
3471             cpuflags="-march=$cpu"
3472             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3473         ;;
3474         *)
3475             cpuflags="-mcpu=$cpu"
3476             case $cpu in
3477                 cortex-a*)                               subarch=armv7a  ;;
3478                 cortex-r*)                               subarch=armv7r  ;;
3479                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3480                 arm11*)                                  subarch=armv6   ;;
3481                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3482                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3483                 *)                             subarch=$(probe_arm_arch) ;;
3484             esac
3485         ;;
3486     esac
3487
3488     case "$subarch" in
3489         armv5t*)    enable fast_clz                ;;
3490         armv[6-8]*) enable fast_clz fast_unaligned ;;
3491     esac
3492
3493 elif enabled avr32; then
3494
3495     case $cpu in
3496         ap7[02]0[0-2])
3497             subarch="avr32_ap"
3498             cpuflags="-mpart=$cpu"
3499         ;;
3500         ap)
3501             subarch="avr32_ap"
3502             cpuflags="-march=$cpu"
3503         ;;
3504         uc3[ab]*)
3505             subarch="avr32_uc"
3506             cpuflags="-mcpu=$cpu"
3507         ;;
3508         uc)
3509             subarch="avr32_uc"
3510             cpuflags="-march=$cpu"
3511         ;;
3512     esac
3513
3514 elif enabled bfin; then
3515
3516     cpuflags="-mcpu=$cpu"
3517
3518 elif enabled mips; then
3519
3520     cpuflags="-march=$cpu"
3521
3522     case $cpu in
3523         24kc)
3524             disable mipsfpu
3525             disable mipsdspr1
3526             disable mipsdspr2
3527         ;;
3528         24kf*)
3529             disable mipsdspr1
3530             disable mipsdspr2
3531         ;;
3532         24kec|34kc|1004kc)
3533             disable mipsfpu
3534             disable mipsdspr2
3535         ;;
3536         24kef*|34kf*|1004kf*)
3537             disable mipsdspr2
3538         ;;
3539         74kc)
3540             disable mipsfpu
3541         ;;
3542     esac
3543
3544 elif enabled ppc; then
3545
3546     case $(tolower $cpu) in
3547         601|ppc601|powerpc601)
3548             cpuflags="-mcpu=601"
3549             disable altivec
3550         ;;
3551         603*|ppc603*|powerpc603*)
3552             cpuflags="-mcpu=603"
3553             disable altivec
3554         ;;
3555         604*|ppc604*|powerpc604*)
3556             cpuflags="-mcpu=604"
3557             disable altivec
3558         ;;
3559         g3|75*|ppc75*|powerpc75*)
3560             cpuflags="-mcpu=750"
3561             disable altivec
3562         ;;
3563         g4|745*|ppc745*|powerpc745*)
3564             cpuflags="-mcpu=7450"
3565         ;;
3566         74*|ppc74*|powerpc74*)
3567             cpuflags="-mcpu=7400"
3568         ;;
3569         g5|970|ppc970|powerpc970)
3570             cpuflags="-mcpu=970"
3571         ;;
3572         power[3-7]*)
3573             cpuflags="-mcpu=$cpu"
3574         ;;
3575         cell)
3576             cpuflags="-mcpu=cell"
3577             enable ldbrx
3578         ;;
3579         e500mc)
3580             cpuflags="-mcpu=e500mc"
3581             disable altivec
3582         ;;
3583         e500v2)
3584             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3585             disable altivec
3586         ;;
3587         e500)
3588             cpuflags="-mcpu=8540 -mhard-float"
3589             disable altivec
3590         ;;
3591     esac
3592
3593 elif enabled sparc; then
3594
3595     case $cpu in
3596         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3597             cpuflags="-mcpu=$cpu"
3598         ;;
3599         ultrasparc*|niagara[234])
3600             cpuflags="-mcpu=$cpu"
3601         ;;
3602     esac
3603
3604 elif enabled x86; then
3605
3606     case $cpu in
3607         i[345]86|pentium)
3608             cpuflags="-march=$cpu"
3609             disable mmx
3610         ;;
3611         # targets that do NOT support nopl and conditional mov (cmov)
3612         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3613             cpuflags="-march=$cpu"
3614             disable i686
3615         ;;
3616         # targets that do support nopl and conditional mov (cmov)
3617         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3618             cpuflags="-march=$cpu"
3619             enable i686
3620             enable fast_cmov
3621         ;;
3622         # targets that do support conditional mov but on which it's slow
3623         pentium4|pentium4m|prescott|nocona)
3624             cpuflags="-march=$cpu"
3625             enable i686
3626             disable fast_cmov
3627         ;;
3628     esac
3629
3630 fi
3631
3632 if [ "$cpu" != generic ]; then
3633     add_cflags  $cpuflags
3634     add_asflags $cpuflags
3635 fi
3636
3637 # compiler sanity check
3638 check_exec <<EOF
3639 int main(void){ return 0; }
3640 EOF
3641 if test "$?" != 0; then
3642     echo "$cc is unable to create an executable file."
3643     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3644         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3645         echo "Only do this if you know what cross compiling means."
3646     fi
3647     die "C compiler test failed."
3648 fi
3649
3650 add_cppflags -D_ISOC99_SOURCE
3651 add_cxxflags -D__STDC_CONSTANT_MACROS
3652 check_cflags -std=c99
3653 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3654 #include <stdlib.h>
3655 EOF
3656 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3657 #include <stdlib.h>
3658 EOF
3659
3660 add_host_cppflags -D_ISOC99_SOURCE
3661 check_host_cflags -std=c99
3662 check_host_cflags -Wall
3663 check_host_cflags -O3
3664
3665 check_64bit(){
3666     arch32=$1
3667     arch64=$2
3668     expr=$3
3669     check_code cc "" "int test[2*($expr) - 1]" &&
3670         subarch=$arch64 || subarch=$arch32
3671 }
3672
3673 case "$arch" in
3674     aarch64|alpha|ia64)
3675         spic=$shared
3676     ;;
3677     mips)
3678         check_64bit mips mips64 '_MIPS_SIM > 1'
3679         spic=$shared
3680     ;;
3681     parisc)
3682         check_64bit parisc parisc64 'sizeof(void *) > 4'
3683         spic=$shared
3684     ;;
3685     ppc)
3686         check_64bit ppc ppc64 'sizeof(void *) > 4'
3687         spic=$shared
3688     ;;
3689     s390)
3690         check_64bit s390 s390x 'sizeof(void *) > 4'
3691         spic=$shared
3692     ;;
3693     sparc)
3694         check_64bit sparc sparc64 'sizeof(void *) > 4'
3695         spic=$shared
3696     ;;
3697     x86)
3698         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3699         if test "$subarch" = "x86_64"; then
3700             spic=$shared
3701         fi
3702     ;;
3703     ppc)
3704         check_cc <<EOF && subarch="ppc64"
3705         int test[(int)sizeof(char*) - 7];
3706 EOF
3707     ;;
3708 esac
3709
3710 enable $subarch
3711 enabled spic && enable_weak pic
3712
3713 # OS specific
3714 case $target_os in
3715     aix)
3716         SHFLAGS=-shared
3717         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3718         enabled shared && add_ldflags -Wl,-brtl
3719         ;;
3720     haiku)
3721         prefix_default="/boot/common"
3722         network_extralibs="-lnetwork"
3723         host_libs=
3724         ;;
3725     sunos)
3726         SHFLAGS='-shared -Wl,-h,$$(@F)'
3727         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3728         network_extralibs="-lsocket -lnsl"
3729         # When using suncc to build, the Solaris linker will mark
3730         # an executable with each instruction set encountered by
3731         # the Solaris assembler.  As our libraries contain their own
3732         # guards for processor-specific code, instead suppress
3733         # generation of the HWCAPS ELF section on Solaris x86 only.
3734         enabled_all suncc x86 &&
3735             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3736             add_ldflags -Wl,-M,mapfile
3737         nm_default='nm -P -g'
3738         ;;
3739     netbsd)
3740         disable symver
3741         oss_indev_extralibs="-lossaudio"
3742         oss_outdev_extralibs="-lossaudio"
3743         enabled gcc || check_ldflags -Wl,-zmuldefs
3744         ;;
3745     openbsd|bitrig)
3746         disable symver
3747         SHFLAGS='-shared'
3748         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3749         SLIB_INSTALL_LINKS=
3750         oss_indev_extralibs="-lossaudio"
3751         oss_outdev_extralibs="-lossaudio"
3752         ;;
3753     dragonfly)
3754         disable symver
3755         ;;
3756     freebsd)
3757         ;;
3758     bsd/os)
3759         add_extralibs -lpoll -lgnugetopt
3760         strip="strip -d"
3761         ;;
3762     darwin)
3763         gas="gas-preprocessor.pl $cc"
3764         enabled ppc && add_asflags -force_cpusubtype_ALL
3765         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3766         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3767         strip="${strip} -x"
3768         add_ldflags -Wl,-dynamic,-search_paths_first
3769         SLIBSUF=".dylib"
3770         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3771         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3772         objformat="macho"
3773         enabled x86_64 && objformat="macho64"
3774         enabled_any pic shared ||
3775             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3776         ;;
3777     mingw32*)
3778         if test $target_os = "mingw32ce"; then
3779             disable network
3780         else
3781             target_os=mingw32
3782         fi
3783         LIBTARGET=i386
3784         if enabled x86_64; then
3785             LIBTARGET="i386:x86-64"
3786         elif enabled arm; then
3787             LIBTARGET=arm-wince
3788         fi
3789         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3790         check_ldflags -Wl,--nxcompat
3791         check_ldflags -Wl,--dynamicbase
3792         shlibdir_default="$bindir_default"
3793         SLIBPREF=""
3794         SLIBSUF=".dll"
3795         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3796         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3797         dlltool="${cross_prefix}dlltool"
3798         if check_cmd lib.exe -list; then
3799             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3800             if enabled x86_64; then
3801                 LIBTARGET=x64
3802             fi
3803         elif check_cmd $dlltool --version; then
3804             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3805         fi
3806         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3807         SLIB_INSTALL_LINKS=
3808         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3809         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3810         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3811         objformat="win32"
3812         ranlib=:
3813         enable dos_paths
3814         ;;
3815     win32|win64)
3816         disable symver
3817         if enabled shared; then
3818             # Link to the import library instead of the normal static library
3819             # for shared libs.
3820             LD_LIB='%.lib'
3821             # Cannot build both shared and static libs with MSVC or icl.
3822             disable static
3823         fi
3824         shlibdir_default="$bindir_default"
3825         SLIBPREF=""
3826         SLIBSUF=".dll"
3827         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3828         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3829         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3830         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3831         SLIB_INSTALL_LINKS=
3832         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3833         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3834         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3835         objformat="win32"
3836         ranlib=:
3837         enable dos_paths
3838         ;;
3839     cygwin*)
3840         target_os=cygwin
3841         shlibdir_default="$bindir_default"
3842         SLIBPREF="cyg"
3843         SLIBSUF=".dll"
3844         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3845         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3846         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3847         SLIB_INSTALL_LINKS=
3848         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3849         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3850         objformat="win32"
3851         enable dos_paths
3852         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3853         ;;
3854     *-dos|freedos|opendos)
3855         network_extralibs="-lsocket"
3856         objformat="coff"
3857         enable dos_paths
3858         add_cppflags -U__STRICT_ANSI__
3859         ;;
3860     linux)
3861         enable dv1394
3862         ;;
3863     irix*)
3864         target_os=irix
3865         ranlib="echo ignoring ranlib"
3866         ;;
3867     os/2*)
3868         strip="lxlite -CS"
3869         ln_s="cp -f"
3870         objformat="aout"
3871         add_cppflags -D_GNU_SOURCE
3872         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3873         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3874         LIBSUF="_s.a"
3875         SLIBPREF=""
3876         SLIBSUF=".dll"
3877         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3878         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3879         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3880             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3881             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3882             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3883             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3884             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3885         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3886             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3887         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3888         enable dos_paths
3889         enable_weak os2threads
3890         ;;
3891     gnu/kfreebsd)
3892         add_cppflags -D_BSD_SOURCE
3893         ;;
3894     gnu)
3895         ;;
3896     qnx)
3897         add_cppflags -D_QNX_SOURCE
3898         network_extralibs="-lsocket"
3899         ;;
3900     symbian)
3901         SLIBSUF=".dll"
3902         enable dos_paths
3903         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3904         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3905         add_ldflags -Wl,--target1-abs,--no-undefined \
3906                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3907                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3908         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3909                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3910                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3911         ;;
3912     osf1)
3913         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3914         ;;
3915     minix)
3916         ;;
3917     plan9)
3918         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3919                      -D_REENTRANT_SOURCE        \
3920                      -D_RESEARCH_SOURCE         \
3921                      -DFD_SETSIZE=96            \
3922                      -DHAVE_SOCK_OPTS
3923         add_compat strtod.o strtod=avpriv_strtod
3924         network_extralibs='-lbsd'
3925         exeobjs=compat/plan9/main.o
3926         disable ffserver
3927         cp_f='cp'
3928         ;;
3929     none)
3930         ;;
3931     *)
3932         die "Unknown OS '$target_os'."
3933         ;;
3934 esac
3935
3936 # determine libc flavour
3937
3938 probe_libc(){
3939     pfx=$1
3940     pfx_no_=${pfx%_}
3941     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3942     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3943         eval ${pfx}libc_type=uclibc
3944         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3945     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3946         eval ${pfx}libc_type=glibc
3947         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3948     # MinGW headers can be installed on Cygwin, so check for newlib first.
3949     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3950         eval ${pfx}libc_type=newlib
3951         add_${pfx}cppflags -U__STRICT_ANSI__
3952     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3953     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3954         eval ${pfx}libc_type=mingw64
3955         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
3956             add_compat msvcrt/snprintf.o
3957             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3958         fi
3959         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3960         eval test \$${pfx_no_}cc_type = "gcc" &&
3961             add_${pfx}cppflags -D__printf__=__gnu_printf__
3962     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3963          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3964         eval ${pfx}libc_type=mingw32
3965         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3966             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3967             die "ERROR: MinGW32 runtime version must be >= 3.15."
3968         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3969         eval test \$${pfx_no_}cc_type = "gcc" &&
3970             add_${pfx}cppflags -D__printf__=__gnu_printf__
3971     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3972         eval ${pfx}libc_type=msvcrt
3973         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3974         # 0x601 by default unless something else is set by the user.
3975         # This can easily lead to us detecting functions only present
3976         # in such new versions and producing binaries requiring windows 7.0.
3977         # Therefore explicitly set the default to XP unless the user has
3978         # set something else on the command line.
3979         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3980             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3981     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3982         eval ${pfx}libc_type=klibc
3983     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3984         eval ${pfx}libc_type=bionic
3985     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3986         eval ${pfx}libc_type=solaris
3987         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3988     fi
3989 }
3990
3991 probe_libc
3992 test -n "$libc_type" && enable libc_$libc_type
3993 probe_libc host_
3994 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3995
3996 case $libc_type in
3997     bionic)
3998         add_compat strtod.o strtod=avpriv_strtod
3999         ;;
4000     msvcrt)
4001         add_compat strtod.o strtod=avpriv_strtod
4002         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4003                                      _snprintf=avpriv_snprintf  \
4004                                      vsnprintf=avpriv_vsnprintf
4005         ;;
4006 esac
4007
4008 # hacks for compiler/libc/os combinations
4009
4010 if enabled_all tms470 libc_glibc; then
4011     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4012     add_cppflags -D__USER_LABEL_PREFIX__=
4013     add_cppflags -D__builtin_memset=memset
4014     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4015     add_cflags   -pds=48    # incompatible redefinition of macro
4016 fi
4017
4018 if enabled_all ccc libc_glibc; then
4019     add_ldflags -Wl,-z,now  # calls to libots crash without this
4020 fi
4021
4022 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4023     add_cppflags '-I\$(SRC_PATH)/compat/float'
4024
4025 esc(){
4026     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4027 }
4028
4029 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4030
4031 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4032
4033 set_default $PATHS_LIST
4034 set_default nm
4035
4036 # we need to build at least one lib type
4037 if ! enabled_any static shared; then
4038     cat <<EOF
4039 At least one library type must be built.
4040 Specify --enable-static to build the static libraries or --enable-shared to
4041 build the shared libraries as well. To only build the shared libraries specify
4042 --disable-static in addition to --enable-shared.
4043 EOF
4044     exit 1;
4045 fi
4046
4047 # backward compatibility layer for incompatible_libav/fork_abi
4048 enabled incompatible_fork_abi  && enable incompatible_libav_abi
4049 enabled incompatible_libav_abi && enable incompatible_fork_abi
4050
4051 die_license_disabled() {
4052     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4053 }
4054
4055 die_license_disabled_gpl() {
4056     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4057 }
4058
4059 die_license_disabled gpl frei0r
4060 die_license_disabled gpl libcdio
4061 die_license_disabled gpl libutvideo
4062 die_license_disabled gpl libvidstab
4063 die_license_disabled gpl libx264
4064 die_license_disabled gpl libx265
4065 die_license_disabled gpl libxavs
4066 die_license_disabled gpl libxvid
4067 die_license_disabled gpl libzvbi
4068 die_license_disabled gpl x11grab
4069
4070 die_license_disabled nonfree libaacplus
4071 die_license_disabled nonfree libfaac
4072 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4073 enabled gpl && die_license_disabled_gpl nonfree openssl
4074
4075 die_license_disabled version3 libopencore_amrnb
4076 die_license_disabled version3 libopencore_amrwb
4077 die_license_disabled version3 libvo_aacenc
4078 die_license_disabled version3 libvo_amrwbenc
4079
4080 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4081
4082 disabled optimizations || check_cflags -fomit-frame-pointer
4083
4084 enable_weak_pic() {
4085     disabled pic && return
4086     enable pic
4087     add_cppflags -DPIC
4088     case "$target_os" in
4089     mingw*|cygwin*)
4090         ;;
4091     *)
4092         add_cflags -fPIC
4093         ;;
4094     esac
4095     add_asflags  -fPIC
4096 }
4097
4098 enabled pic && enable_weak_pic
4099
4100 check_cc <<EOF || die "Symbol mangling check failed."
4101 int ff_extern;
4102 EOF
4103 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4104 extern_prefix=${sym%%ff_extern*}
4105
4106 check_cc <<EOF && enable_weak inline_asm
4107 void foo(void) { __asm__ volatile ("" ::); }
4108 EOF
4109
4110 _restrict=
4111 for restrict_keyword in restrict __restrict__ __restrict; do
4112     check_cc <<EOF && _restrict=$restrict_keyword && break
4113 void foo(char * $restrict_keyword p);
4114 EOF
4115 done
4116
4117 check_cc <<EOF && enable pragma_deprecated
4118 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4119 EOF
4120
4121 check_cc <<EOF && enable attribute_packed
4122 struct { int x; } __attribute__((packed)) x;
4123 EOF
4124
4125 check_cc <<EOF && enable attribute_may_alias
4126 union { int x; } __attribute__((may_alias)) x;
4127 EOF
4128
4129 check_cc <<EOF || die "endian test failed"
4130 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4131 EOF
4132 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4133
4134 check_inline_asm inline_asm_labels '"1:\n"'
4135
4136 if enabled aarch64; then
4137     # internal assembler in clang 3.3 does not support this instruction
4138     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4139     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4140
4141     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4142
4143 elif enabled alpha; then
4144
4145     check_cflags -mieee
4146
4147 elif enabled arm; then
4148
4149     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4150 float func(float a, float b){ return a+b; }
4151 EOF
4152
4153     enabled thumb && check_cflags -mthumb || check_cflags -marm
4154     nogas=die
4155
4156     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4157         enable vfp_args
4158     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4159         case "${cross_prefix:-$cc}" in
4160             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4161             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4162 __asm__ (".eabi_attribute 28, 1");
4163 int main(void) { return 0; }
4164 EOF
4165         esac
4166         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4167     fi
4168
4169     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4170     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4171     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4172     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4173     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4174     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4175
4176     [ $target_os = linux ] ||
4177         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4178             $ARCH_EXT_LIST_ARM
4179
4180     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4181
4182     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4183
4184 elif enabled mips; then
4185
4186     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4187     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4188      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4189     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4190      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4191     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4192      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4193     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4194      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4195
4196 elif enabled parisc; then
4197
4198     if enabled gcc; then
4199         case $($cc -dumpversion) in
4200             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4201         esac
4202     fi
4203
4204 elif enabled ppc; then
4205
4206     enable local_aligned_8 local_aligned_16
4207
4208     [ $cpu != e500 -a $cpu != e500v2 ] &&
4209      check_inline_asm dcbzl    '"dcbzl 0, %0" :: "r"(0)'
4210     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4211     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4212     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4213
4214     # AltiVec flags: The FSF version of GCC differs from the Apple version
4215     if enabled altivec; then
4216         if ! enabled_any pic ppc64; then
4217             nogas=warn
4218         fi
4219         check_cflags -maltivec -mabi=altivec &&
4220         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4221         check_cflags -faltivec
4222
4223         # check if our compiler supports Motorola AltiVec C API
4224         check_cc <<EOF || disable altivec
4225 $inc_altivec_h
4226 int main(void) {
4227     vector signed int v1 = (vector signed int) { 0 };
4228     vector signed int v2 = (vector signed int) { 1 };
4229     v1 = vec_add(v1, v2);
4230     return 0;
4231 }
4232 EOF
4233
4234         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4235     fi
4236
4237 elif enabled x86; then
4238
4239     check_builtin rdtsc    intrin.h   "__rdtsc()"
4240     check_builtin mm_empty mmintrin.h "_mm_empty()"
4241
4242     enable local_aligned_8 local_aligned_16
4243
4244     # check whether EBP is available on x86
4245     # As 'i' is stored on the stack, this program will crash
4246     # if the base pointer is used to access it because the
4247     # base pointer is cleared in the inline assembly code.
4248     check_exec_crash <<EOF && enable ebp_available
4249 volatile int i=0;
4250 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4251 return i;
4252 EOF
4253
4254     # check whether EBX is available on x86
4255     check_inline_asm ebx_available '""::"b"(0)' &&
4256         check_inline_asm ebx_available '"":::"%ebx"'
4257
4258     # check whether xmm clobbers are supported
4259     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4260
4261     # check whether binutils is new enough to compile SSSE3/MMXEXT
4262     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4263     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4264
4265     if ! disabled_any asm mmx yasm; then
4266         if check_cmd $yasmexe --version; then
4267             enabled x86_64 && yasm_extra="-m amd64"
4268             yasm_debug="-g dwarf2"
4269         elif check_cmd nasm -v; then
4270             yasmexe=nasm
4271             yasm_debug="-g -F dwarf"
4272             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4273         fi
4274
4275         YASMFLAGS="-f $objformat $yasm_extra"
4276         enabled pic               && append YASMFLAGS "-DPIC"
4277         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4278         case "$objformat" in
4279             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4280         esac
4281
4282         check_yasm "movbe ecx, [5]" && enable yasm ||
4283             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4284         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4285         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4286         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4287         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4288         check_yasm "CPU amdnop" || disable cpunop
4289     fi
4290
4291     case "$cpu" in
4292         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4293             disable fast_clz
4294         ;;
4295     esac
4296
4297 fi
4298
4299 if enabled asm; then
4300     as=${gas:=$as}
4301     check_as <<EOF && enable gnu_as || \
4302         $nogas "GNU assembler not found, install gas-preprocessor"
4303 .macro m n
4304 \n: .int 0
4305 .endm
4306 m x
4307 EOF
4308 fi
4309
4310 check_ldflags -Wl,--as-needed
4311
4312 if check_func dlopen; then
4313     ldl=
4314 elif check_func dlopen -ldl; then
4315     ldl=-ldl
4316 fi
4317
4318 if ! disabled network; then
4319     check_type "sys/types.h sys/socket.h" socklen_t
4320     check_type netdb.h "struct addrinfo"
4321     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4322     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4323     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4324     check_type netinet/in.h "struct sockaddr_in6"
4325     check_type poll.h "struct pollfd"
4326     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4327     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4328     check_type netinet/sctp.h "struct sctp_event_subscribe"
4329     check_func getaddrinfo $network_extralibs
4330     check_func getservbyport $network_extralibs
4331     check_func inet_aton $network_extralibs
4332     # Prefer arpa/inet.h over winsock2
4333     if check_header arpa/inet.h ; then
4334         check_func closesocket
4335     elif check_header winsock2.h ; then
4336         check_func_headers winsock2.h closesocket -lws2 &&
4337             network_extralibs="-lws2" ||
4338         { check_func_headers winsock2.h closesocket -lws2_32 &&
4339             network_extralibs="-lws2_32"; } || disable winsock2_h network
4340         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4341         check_type ws2tcpip.h socklen_t
4342         check_type ws2tcpip.h "struct addrinfo"
4343         check_type ws2tcpip.h "struct group_source_req"
4344         check_type ws2tcpip.h "struct ip_mreq_source"
4345         check_type ws2tcpip.h "struct ipv6_mreq"
4346         check_type winsock2.h "struct pollfd"
4347         check_type ws2tcpip.h "struct sockaddr_in6"
4348         check_type ws2tcpip.h "struct sockaddr_storage"
4349         check_struct winsock2.h "struct sockaddr" sa_len
4350     else
4351         disable network
4352     fi
4353 fi
4354
4355 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4356 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4357
4358 check_func  access
4359 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4360 check_func  fcntl
4361 check_func  fork
4362 check_func_headers stdlib.h getenv
4363 check_func  gethrtime
4364 check_func  getopt
4365 check_func  getrusage
4366 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4367 check_func  gettimeofday
4368 check_func  isatty
4369 check_func  localtime_r
4370 check_func  mach_absolute_time
4371 check_func  ${malloc_prefix}memalign            && enable memalign
4372 check_func  mkstemp
4373 check_func  mmap
4374 check_func  mprotect
4375 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4376 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4377 check_func  setrlimit
4378 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4379 check_func  strerror_r
4380 check_func  sched_getaffinity
4381 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4382 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4383 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4384 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4385 check_builtin sarestart signal.h "SA_RESTART"
4386 check_func  sysconf
4387 check_func  sysctl
4388 check_func  usleep
4389 check_func_headers conio.h kbhit
4390 check_func_headers windows.h PeekNamedPipe
4391 check_func_headers io.h setmode
4392 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4393 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4394 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4395 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4396 check_func_headers windows.h GetProcessAffinityMask
4397 check_func_headers windows.h GetProcessTimes
4398 check_func_headers windows.h GetSystemTimeAsFileTime
4399 check_func_headers windows.h MapViewOfFile
4400 check_func_headers windows.h SetConsoleTextAttribute
4401 check_func_headers windows.h Sleep
4402 check_func_headers windows.h VirtualAlloc
4403 check_func_headers glob.h glob
4404 enabled xlib &&
4405     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4406
4407 check_header cl/cl.h
4408 check_header direct.h
4409 check_header dlfcn.h
4410 check_header dxva.h
4411 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4412 check_header io.h
4413 check_header libcrystalhd/libcrystalhd_if.h
4414 check_header mach/mach_time.h
4415 check_header malloc.h
4416 check_header poll.h
4417 check_header sys/mman.h
4418 check_header sys/param.h
4419 check_header sys/resource.h
4420 check_header sys/select.h
4421 check_header sys/time.h
4422 check_header sys/un.h
4423 check_header termios.h
4424 check_header unistd.h
4425 check_header vdpau/vdpau.h
4426 check_header vdpau/vdpau_x11.h
4427 check_header VideoDecodeAcceleration/VDADecoder.h
4428 check_header windows.h
4429 check_header X11/extensions/XvMClib.h
4430 check_header asm/types.h
4431
4432 if ! disabled w32threads && ! enabled pthreads; then
4433     check_func_headers "windows.h process.h" _beginthreadex &&
4434         enable w32threads || disable w32threads
4435 fi
4436
4437 # check for some common methods of building with pthread support
4438 # do this before the optional library checks as some of them require pthreads
4439 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4440     enable pthreads
4441     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4442         add_cflags -pthread
4443         add_extralibs -pthread
4444     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4445         add_cflags -pthreads
4446         add_extralibs -pthreads
4447     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4448         add_extralibs -lpthreadGC2
4449     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4450         :
4451     elif ! check_func pthread_join && ! check_func pthread_create; then
4452         disable pthreads
4453     fi
4454     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4455 fi
4456
4457
4458 if enabled pthreads; then
4459   check_func pthread_cancel
4460 fi
4461
4462 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4463 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4464
4465 check_lib math.h sin -lm && LIBM="-lm"
4466 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4467
4468 atan2f_args=2
4469 ldexpf_args=2
4470 powf_args=2
4471
4472 for func in $MATH_FUNCS; do
4473     eval check_mathfunc $func \${${func}_args:-1}
4474 done
4475
4476 # these are off by default, so fail if requested and not available
4477 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4478                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4479                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4480 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4481 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4482 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4483 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4484 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4485 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4486 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4487 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4488 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4489 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4490                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4491                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4492 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4493 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4494 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4495 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"
4496 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4497 enabled libfreetype       && require_libfreetype
4498 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4499 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4500                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4501                                done || die "ERROR: libgsm not found"; }
4502 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4503 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4504 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4505 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4506 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4507 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4508 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4509 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4510                                check_lib openjpeg.h opj_version -lopenjpeg ||
4511                                die "ERROR: libopenjpeg not found"; }
4512 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4513 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4514 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4515 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4516 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4517 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4518 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4519 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4520 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4521 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4522     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4523     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4524 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4525 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4526                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4527                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4528 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4529 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4530 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4531 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4532 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4533 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4534 enabled libvpx            && {
4535     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4536                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4537     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 ||
4538                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4539     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4540     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; } }
4541 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4542 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4543 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4544                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4545                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4546 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4547                              { check_cpp_condition x265.h "X265_BUILD >= 9" ||
4548                                die "ERROR: libx265 version must be >= 9."; }
4549 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4550 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4551 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4552 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4553 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4554                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4555                                die "ERROR: openal not found"; } &&
4556                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4557                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4558 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4559                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4560                                die "ERROR: opencl not found"; } &&
4561                              { ! enabled_any w32threads os2threads ||
4562                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4563                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4564                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4565                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4566 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4567                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4568                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4569                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4570                                die "ERROR: opengl not found."
4571                              }
4572 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4573                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4574                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4575                                die "ERROR: openssl not found"; }
4576
4577 if enabled gnutls; then
4578     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4579     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4580 fi
4581
4582 # libdc1394 check
4583 if enabled libdc1394; then
4584     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4585         enable libdc1394_2; } ||
4586     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4587         enable libdc1394_1; } ||
4588     die "ERROR: No version of libdc1394 found "
4589 fi
4590
4591 SDL_CONFIG="${cross_prefix}sdl-config"
4592 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4593     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4594     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4595     enable sdl
4596 else
4597   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4598     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4599     sdl_libs=$("${SDL_CONFIG}" --libs)
4600     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4601     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4602     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4603     enable sdl
4604   fi
4605 fi
4606 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4607
4608 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4609 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4610 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4611 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4612 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4613
4614 check_header linux/fb.h
4615 check_header linux/videodev.h
4616 check_header linux/videodev2.h
4617 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4618
4619 check_header sys/videoio.h
4620
4621 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4622 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4623 # w32api 3.12 had it defined wrong
4624 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4625
4626 check_type "dshow.h" IBaseFilter
4627
4628 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4629 { check_header dev/bktr/ioctl_meteor.h &&
4630   check_header dev/bktr/ioctl_bt848.h; } ||
4631 { check_header machine/ioctl_meteor.h &&
4632   check_header machine/ioctl_bt848.h; } ||
4633 { check_header dev/video/meteor/ioctl_meteor.h &&
4634   check_header dev/video/bktr/ioctl_bt848.h; } ||
4635 check_header dev/ic/bt8xx.h
4636
4637 check_header sndio.h
4638 if check_struct sys/soundcard.h audio_buf_info bytes; then
4639     enable_safe sys/soundcard.h
4640 else
4641     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4642     #include <sys/soundcard.h>
4643     audio_buf_info abc;
4644 EOF
4645 fi
4646 check_header soundcard.h
4647
4648 enabled_any alsa_indev alsa_outdev &&
4649     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4650
4651 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4652     check_func jack_port_get_latency_range -ljack
4653
4654 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4655
4656 if enabled libcdio; then
4657     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4658     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4659     die "ERROR: libcdio-paranoia not found"
4660 fi
4661
4662 enabled xlib &&
4663     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4664
4665 enabled x11grab                                           &&
4666 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4667 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4668 { enabled xlib || die "ERROR: Xlib not found"; }
4669
4670 enabled vaapi &&
4671     check_lib va/va.h vaInitialize -lva ||
4672     disable vaapi
4673
4674 enabled vdpau &&
4675     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4676     disable vdpau
4677
4678 enabled vdpau && enabled xlib &&
4679     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4680     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4681     enable vdpau_x11
4682
4683 # Funny iconv installations are not unusual, so check it after all flags have been set
4684 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4685
4686 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4687
4688 # add some useful compiler flags if supported
4689 check_cflags -Wdeclaration-after-statement
4690 check_cflags -Wall
4691 check_cflags -Wdisabled-optimization
4692 check_cflags -Wpointer-arith
4693 check_cflags -Wredundant-decls
4694 check_cflags -Wwrite-strings
4695 check_cflags -Wtype-limits
4696 check_cflags -Wundef
4697 check_cflags -Wmissing-prototypes
4698 check_cflags -Wno-pointer-to-int-cast
4699 check_cflags -Wstrict-prototypes
4700 enabled extra_warnings && check_cflags -Winline
4701
4702 check_disable_warning(){
4703     warning_flag=-W${1#-Wno-}
4704     test_cflags $warning_flag && add_cflags $1
4705 }
4706
4707 check_disable_warning -Wno-parentheses
4708 check_disable_warning -Wno-switch
4709 check_disable_warning -Wno-format-zero-length
4710 check_disable_warning -Wno-pointer-sign
4711
4712 # add some linker flags
4713 check_ldflags -Wl,--warn-common
4714 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4715 enabled rpath && add_ldflags -Wl,-rpath=$libdir
4716 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4717
4718 # add some strip flags
4719 # -wN '..@*' is more selective than -x, but not available everywhere.
4720 check_stripflags -wN \'..@*\' || check_stripflags -x
4721
4722 enabled neon_clobber_test &&
4723     check_ldflags -Wl,--wrap,avcodec_open2              \
4724                   -Wl,--wrap,avcodec_decode_audio4      \
4725                   -Wl,--wrap,avcodec_decode_video2      \
4726                   -Wl,--wrap,avcodec_decode_subtitle2   \
4727                   -Wl,--wrap,avcodec_encode_audio2      \
4728                   -Wl,--wrap,avcodec_encode_video2      \
4729                   -Wl,--wrap,avcodec_encode_subtitle    \
4730                   -Wl,--wrap,swr_convert                \
4731                   -Wl,--wrap,avresample_convert ||
4732     disable neon_clobber_test
4733
4734 enabled xmm_clobber_test &&
4735     check_ldflags -Wl,--wrap,avcodec_open2              \
4736                   -Wl,--wrap,avcodec_decode_audio4      \
4737                   -Wl,--wrap,avcodec_decode_video2      \
4738                   -Wl,--wrap,avcodec_decode_subtitle2   \
4739                   -Wl,--wrap,avcodec_encode_audio2      \
4740                   -Wl,--wrap,avcodec_encode_video       \
4741                   -Wl,--wrap,avcodec_encode_video2      \
4742                   -Wl,--wrap,avcodec_encode_subtitle    \
4743                   -Wl,--wrap,swr_convert                \
4744                   -Wl,--wrap,avresample_convert         \
4745                   -Wl,--wrap,sws_scale ||
4746     disable xmm_clobber_test
4747
4748 echo "X{};" > $TMPV
4749 if test_ldflags -Wl,--version-script,$TMPV; then
4750     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4751     check_cc <<EOF && enable symver_asm_label
4752 void ff_foo(void) __asm__ ("av_foo@VERSION");
4753 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4754 EOF
4755     check_cc <<EOF && enable symver_gnu_asm
4756 __asm__(".symver ff_foo,av_foo@VERSION");
4757 void ff_foo(void) {}
4758 EOF
4759 fi
4760
4761 if [ -z "$optflags" ]; then
4762     if enabled small; then
4763         optflags=$cflags_size
4764     elif enabled optimizations; then
4765         optflags=$cflags_speed
4766     else
4767         optflags=$cflags_noopt
4768     fi
4769 fi
4770
4771 check_optflags(){
4772     check_cflags "$@"
4773     enabled lto && check_ldflags "$@"
4774 }
4775
4776
4777 if enabled lto; then
4778     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4779     check_cflags  -flto
4780     check_ldflags -flto $cpuflags
4781 fi
4782
4783 check_optflags $optflags
4784 check_optflags -fno-math-errno
4785 check_optflags -fno-signed-zeros
4786
4787 enabled ftrapv && check_cflags -ftrapv
4788
4789 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4790 int x;
4791 EOF
4792
4793
4794 if enabled icc; then
4795     # Just warnings, no remarks
4796     check_cflags -w1
4797     # -wd: Disable following warnings
4798     # 144, 167, 556: -Wno-pointer-sign
4799     # 188: enumerated type mixed with another type
4800     # 1292: attribute "foo" ignored
4801     # 1419: external declaration in primary source file
4802     # 10006: ignoring unknown option -fno-signed-zeros
4803     # 10148: ignoring unknown option -Wno-parentheses
4804     # 10156: ignoring option '-W'; no argument required
4805     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4806     # 11030: Warning unknown option --as-needed
4807     # 10156: ignoring option '-export'; no argument required
4808     check_ldflags -wd10156,11030
4809     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4810     enable ebp_available
4811     if enabled x86_32; then
4812         icc_version=$($cc -dumpversion)
4813         test ${icc_version%%.*} -ge 11 &&
4814             check_cflags -falign-stack=maintain-16-byte ||
4815             disable aligned_stack
4816     fi
4817 elif enabled ccc; then
4818     # disable some annoying warnings
4819     add_cflags -msg_disable bitnotint
4820     add_cflags -msg_disable mixfuncvoid
4821     add_cflags -msg_disable nonstandcast
4822     add_cflags -msg_disable unsupieee
4823 elif enabled gcc; then
4824     check_optflags -fno-tree-vectorize
4825     check_cflags -Werror=implicit-function-declaration
4826     check_cflags -Werror=missing-prototypes
4827     check_cflags -Werror=return-type
4828     check_cflags -Werror=vla
4829     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4830 elif enabled llvm_gcc; then
4831     check_cflags -mllvm -stack-alignment=16
4832 elif enabled clang; then
4833     check_cflags -mllvm -stack-alignment=16
4834     check_cflags -Qunused-arguments
4835     check_cflags -Werror=implicit-function-declaration
4836     check_cflags -Werror=missing-prototypes
4837     check_cflags -Werror=return-type
4838 elif enabled cparser; then
4839     add_cflags -Wno-missing-variable-declarations
4840     add_cflags -Wno-empty-statement
4841 elif enabled armcc; then
4842     # 2523: use of inline assembler is deprecated
4843     add_cflags -W${armcc_opt},--diag_suppress=2523
4844     add_cflags -W${armcc_opt},--diag_suppress=1207
4845     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4846     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4847     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4848     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4849 elif enabled tms470; then
4850     add_cflags -pds=824 -pds=837
4851     disable inline_asm
4852 elif enabled pathscale; then
4853     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4854 elif enabled_any msvc icl; then
4855     enabled x86_32 && disable aligned_stack
4856     enabled_all x86_32 debug && add_cflags -Oy-
4857     enabled debug && add_ldflags -debug
4858     enable pragma_deprecated
4859     if enabled icl; then
4860         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4861         # (correctly) on icl 13.x.
4862         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4863             add_cflags -Qansi-alias
4864         # icl will pass the inline asm tests but inline asm is currently
4865         # not supported (build will fail)
4866         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4867         disable inline_asm
4868     fi
4869 fi
4870
4871 case $as_type in
4872     clang)
4873         add_asflags -Qunused-arguments
4874     ;;
4875 esac
4876
4877 case $ld_type in
4878     clang)
4879         check_ldflags -Qunused-arguments
4880     ;;
4881 esac
4882
4883 case $target_os in
4884     osf1)
4885         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4886     ;;
4887     plan9)
4888         add_cppflags -Dmain=plan9_main
4889     ;;
4890 esac
4891
4892 enable frame_thread_encoder
4893
4894 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4895
4896 check_deps $CONFIG_LIST       \
4897            $CONFIG_EXTRA      \
4898            $HAVE_LIST         \
4899            $ALL_COMPONENTS    \
4900
4901 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"
4902
4903
4904 if test $target_os = "haiku"; then
4905     disable memalign
4906     disable posix_memalign
4907 fi
4908
4909 ! enabled_any memalign posix_memalign aligned_malloc &&
4910     enabled_any $need_memalign && enable memalign_hack
4911
4912 # add_dep lib dep
4913 # -> enable ${lib}_deps_${dep}
4914 # -> add $dep to ${lib}_deps only once
4915 add_dep() {
4916     lib=$1
4917     dep=$2
4918     enabled "${lib}_deps_${dep}" && return 0
4919     enable  "${lib}_deps_${dep}"
4920     prepend "${lib}_deps" $dep
4921 }
4922
4923 # merge deps lib components
4924 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4925 merge_deps() {
4926     lib=$1
4927     shift
4928     for comp in $*; do
4929         enabled $comp || continue
4930         eval "dep=\"\$${comp}_deps\""
4931         for d in $dep; do
4932             add_dep $lib $d
4933         done
4934     done
4935 }
4936
4937 merge_deps libavfilter $FILTER_LIST
4938
4939 for thread in $THREADS_LIST; do
4940     if enabled $thread; then
4941         test -n "$thread_type" &&
4942             die "ERROR: Only one thread type must be selected." ||
4943             thread_type="$thread"
4944     fi
4945 done
4946
4947 echo "install prefix            $prefix"
4948 echo "source path               $source_path"
4949 echo "C compiler                $cc"
4950 echo "C library                 $libc_type"
4951 if test "$host_cc" != "$cc"; then
4952     echo "host C compiler           $host_cc"
4953     echo "host C library            $host_libc_type"
4954 fi
4955 echo "ARCH                      $arch ($cpu)"
4956 if test "$build_suffix" != ""; then
4957     echo "build suffix              $build_suffix"
4958 fi
4959 if test "$progs_suffix" != ""; then
4960     echo "progs suffix              $progs_suffix"
4961 fi
4962 if test "$extra_version" != ""; then
4963     echo "version string suffix     $extra_version"
4964 fi
4965 echo "big-endian                ${bigendian-no}"
4966 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4967 if enabled x86; then
4968     echo "${yasmexe}                      ${yasm-no}"
4969     echo "MMX enabled               ${mmx-no}"
4970     echo "MMXEXT enabled            ${mmxext-no}"
4971     echo "3DNow! enabled            ${amd3dnow-no}"
4972     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4973     echo "SSE enabled               ${sse-no}"
4974     echo "SSSE3 enabled             ${ssse3-no}"
4975     echo "AVX enabled               ${avx-no}"
4976     echo "XOP enabled               ${xop-no}"
4977     echo "FMA3 enabled              ${fma3-no}"
4978     echo "FMA4 enabled              ${fma4-no}"
4979     echo "i686 features enabled     ${i686-no}"
4980     echo "CMOV is fast              ${fast_cmov-no}"
4981     echo "EBX available             ${ebx_available-no}"
4982     echo "EBP available             ${ebp_available-no}"
4983 fi
4984 if enabled aarch64; then
4985     echo "NEON enabled              ${neon-no}"
4986     echo "VFP enabled               ${vfp-no}"
4987 fi
4988 if enabled arm; then
4989     echo "ARMv5TE enabled           ${armv5te-no}"
4990     echo "ARMv6 enabled             ${armv6-no}"
4991     echo "ARMv6T2 enabled           ${armv6t2-no}"
4992     echo "VFP enabled               ${vfp-no}"
4993     echo "NEON enabled              ${neon-no}"
4994     echo "THUMB enabled             ${thumb-no}"
4995 fi
4996 if enabled mips; then
4997     echo "MIPS FPU enabled          ${mipsfpu-no}"
4998     echo "MIPS32R2 enabled          ${mips32r2-no}"
4999     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5000     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5001 fi
5002 if enabled ppc; then
5003     echo "AltiVec enabled           ${altivec-no}"
5004     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5005     echo "dcbzl available           ${dcbzl-no}"
5006 fi
5007 echo "debug symbols             ${debug-no}"
5008 echo "strip symbols             ${stripping-no}"
5009 echo "optimize for size         ${small-no}"
5010 echo "optimizations             ${optimizations-no}"
5011 echo "static                    ${static-no}"
5012 echo "shared                    ${shared-no}"
5013 echo "postprocessing support    ${postproc-no}"
5014 echo "new filter support        ${avfilter-no}"
5015 echo "network support           ${network-no}"
5016 echo "threading support         ${thread_type-no}"
5017 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5018 echo "SDL support               ${sdl-no}"
5019 echo "opencl enabled            ${opencl-no}"
5020 echo "libzvbi enabled           ${libzvbi-no}"
5021 echo "texi2html enabled         ${texi2html-no}"
5022 echo "perl enabled              ${perl-no}"
5023 echo "pod2man enabled           ${pod2man-no}"
5024 echo "makeinfo enabled          ${makeinfo-no}"
5025 test -n "$random_seed" &&
5026     echo "random seed               ${random_seed}"
5027 echo
5028
5029 echo "External libraries:"
5030 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5031 echo
5032
5033 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5034     echo "Enabled ${type}s:"
5035     eval list=\$$(toupper $type)_LIST
5036     print_enabled '_*' $list | print_3_columns
5037     echo
5038 done
5039
5040 license="LGPL version 2.1 or later"
5041 if enabled nonfree; then
5042     license="nonfree and unredistributable"
5043 elif enabled gplv3; then
5044     license="GPL version 3 or later"
5045 elif enabled lgplv3; then
5046     license="LGPL version 3 or later"
5047 elif enabled gpl; then
5048     license="GPL version 2 or later"
5049 fi
5050
5051 echo "License: $license"
5052
5053 echo "Creating config.mak, config.h, and doc/config.texi..."
5054
5055 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5056
5057 enabled stripping || strip="echo skipping strip"
5058
5059 config_files="$TMPH config.mak doc/config.texi"
5060
5061 cat > config.mak <<EOF
5062 # Automatically generated by configure - do not modify!
5063 ifndef FFMPEG_CONFIG_MAK
5064 FFMPEG_CONFIG_MAK=1
5065 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5066 prefix=$prefix
5067 LIBDIR=\$(DESTDIR)$libdir
5068 SHLIBDIR=\$(DESTDIR)$shlibdir
5069 INCDIR=\$(DESTDIR)$incdir
5070 BINDIR=\$(DESTDIR)$bindir
5071 DATADIR=\$(DESTDIR)$datadir
5072 DOCDIR=\$(DESTDIR)$docdir
5073 MANDIR=\$(DESTDIR)$mandir
5074 SRC_PATH=$source_path
5075 ifndef MAIN_MAKEFILE
5076 SRC_PATH:=\$(SRC_PATH:.%=..%)
5077 endif
5078 CC_IDENT=$cc_ident
5079 ARCH=$arch
5080 CC=$cc
5081 CXX=$cxx
5082 AS=$as
5083 LD=$ld
5084 DEPCC=$dep_cc
5085 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5086 DEPAS=$as
5087 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5088 YASM=$yasmexe
5089 DEPYASM=$yasmexe
5090 AR=$ar
5091 ARFLAGS=$arflags
5092 AR_O=$ar_o
5093 RANLIB=$ranlib
5094 STRIP=$strip
5095 CP=cp -p
5096 LN_S=$ln_s
5097 CPPFLAGS=$CPPFLAGS
5098 CFLAGS=$CFLAGS
5099 CXXFLAGS=$CXXFLAGS
5100 ASFLAGS=$ASFLAGS
5101 AS_C=$AS_C
5102 AS_O=$AS_O
5103 CC_C=$CC_C
5104 CC_E=$CC_E
5105 CC_O=$CC_O
5106 CXX_C=$CXX_C
5107 CXX_O=$CXX_O
5108 LD_O=$LD_O
5109 LD_LIB=$LD_LIB
5110 LD_PATH=$LD_PATH
5111 DLLTOOL=$dlltool
5112 WINDRES=$windres
5113 DEPWINDRES=$dep_cc
5114 LDFLAGS=$LDFLAGS
5115 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5116 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5117 YASMFLAGS=$YASMFLAGS
5118 BUILDSUF=$build_suffix
5119 PROGSSUF=$progs_suffix
5120 FULLNAME=$FULLNAME
5121 LIBPREF=$LIBPREF
5122 LIBSUF=$LIBSUF
5123 LIBNAME=$LIBNAME
5124 SLIBPREF=$SLIBPREF
5125 SLIBSUF=$SLIBSUF
5126 EXESUF=$EXESUF
5127 EXTRA_VERSION=$extra_version
5128 CCDEP=$CCDEP
5129 CXXDEP=$CXXDEP
5130 CCDEP_FLAGS=$CCDEP_FLAGS
5131 ASDEP=$ASDEP
5132 ASDEP_FLAGS=$ASDEP_FLAGS
5133 CC_DEPFLAGS=$CC_DEPFLAGS
5134 AS_DEPFLAGS=$AS_DEPFLAGS
5135 HOSTCC=$host_cc
5136 HOSTLD=$host_ld
5137 HOSTCFLAGS=$host_cflags
5138 HOSTCPPFLAGS=$host_cppflags
5139 HOSTEXESUF=$HOSTEXESUF
5140 HOSTLDFLAGS=$host_ldflags
5141 HOSTLIBS=$host_libs
5142 DEPHOSTCC=$host_cc
5143 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5144 HOSTCCDEP=$HOSTCCDEP
5145 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5146 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5147 HOSTCC_C=$HOSTCC_C
5148 HOSTCC_O=$HOSTCC_O
5149 HOSTLD_O=$HOSTLD_O
5150 TARGET_EXEC=$target_exec $target_exec_args
5151 TARGET_PATH=$target_path
5152 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5153 CFLAGS-ffplay=$sdl_cflags
5154 ZLIB=$($ldflags_filter -lz)
5155 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5156 EXTRALIBS=$extralibs
5157 COMPAT_OBJS=$compat_objs
5158 EXEOBJS=$exeobjs
5159 INSTALL=$install
5160 LIBTARGET=${LIBTARGET}
5161 SLIBNAME=${SLIBNAME}
5162 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5163 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5164 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5165 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5166 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5167 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5168 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5169 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5170 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5171 NOREDZONE_FLAGS=$noredzone_flags
5172 EOF
5173
5174 get_version(){
5175     lcname=lib${1}
5176     name=$(toupper $lcname)
5177     file=$source_path/$lcname/version.h
5178     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5179     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5180     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5181     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5182     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5183     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5184 }
5185
5186 map 'get_version $v' $LIBRARY_LIST
5187
5188 print_program_libs(){
5189     eval "program_libs=\$${1}_libs"
5190     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5191 }
5192
5193 map 'print_program_libs $v' $PROGRAM_LIST
5194
5195 cat > $TMPH <<EOF
5196 /* Automatically generated by configure - do not modify! */
5197 #ifndef FFMPEG_CONFIG_H
5198 #define FFMPEG_CONFIG_H
5199 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5200 #define FFMPEG_LICENSE "$(c_escape $license)"
5201 #define CONFIG_THIS_YEAR 2014
5202 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5203 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5204 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5205 #define av_restrict $_restrict
5206 #define EXTERN_PREFIX "${extern_prefix}"
5207 #define EXTERN_ASM ${extern_prefix}
5208 #define BUILDSUF "$build_suffix"
5209 #define SLIBSUF "$SLIBSUF"
5210 #define HAVE_MMX2 HAVE_MMXEXT
5211 EOF
5212
5213 test -n "$assert_level" &&
5214     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5215
5216 test -n "$malloc_prefix" &&
5217     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5218
5219 if enabled yasm; then
5220     append config_files $TMPASM
5221     printf '' >$TMPASM
5222 fi
5223
5224 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5225
5226
5227 mkdir -p doc
5228 echo "@c auto-generated by configure" > doc/config.texi
5229
5230 print_config ARCH_   "$config_files" $ARCH_LIST
5231 print_config HAVE_   "$config_files" $HAVE_LIST
5232 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5233                                      $CONFIG_EXTRA      \
5234                                      $ALL_COMPONENTS    \
5235
5236 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5237 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5238
5239 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5240 cp_if_changed $TMPH config.h
5241 touch .config
5242
5243 enabled yasm && cp_if_changed $TMPASM config.asm
5244
5245 cat > $TMPH <<EOF
5246 /* Generated by ffconf */
5247 #ifndef AVUTIL_AVCONFIG_H
5248 #define AVUTIL_AVCONFIG_H
5249 EOF
5250
5251 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5252
5253 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5254
5255 cp_if_changed $TMPH libavutil/avconfig.h
5256
5257 if test -n "$WARNINGS"; then
5258     printf "\n$WARNINGS"
5259     enabled fatal_warnings && exit 1
5260 fi
5261
5262 # build pkg-config files
5263
5264 pkgconfig_generate(){
5265     name=$1
5266     shortname=${name#lib}${build_suffix}
5267     comment=$2
5268     version=$3
5269     libs=$4
5270     requires=$5
5271     enabled ${name#lib} || return 0
5272     mkdir -p $name
5273     cat <<EOF > $name/$name${build_suffix}.pc
5274 prefix=$prefix
5275 exec_prefix=\${prefix}
5276 libdir=$libdir
5277 includedir=$incdir
5278
5279 Name: $name
5280 Description: $comment
5281 Version: $version
5282 Requires: $(enabled shared || echo $requires)
5283 Requires.private: $(enabled shared && echo $requires)
5284 Conflicts:
5285 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5286 Libs.private: $(enabled shared && echo $libs)
5287 Cflags: -I\${includedir}
5288 EOF
5289
5290 mkdir -p doc/examples/pc-uninstalled
5291 includedir=${source_path}
5292 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5293     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5294 prefix=
5295 exec_prefix=
5296 libdir=\${pcfiledir}/../../../$name
5297 includedir=${includedir}
5298
5299 Name: $name
5300 Description: $comment
5301 Version: $version
5302 Requires: $requires
5303 Conflicts:
5304 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5305 Cflags: -I\${includedir}
5306 EOF
5307 }
5308
5309 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5310 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5311 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5312 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5313 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5314 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5315 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5316 lavfi_libs=${lavfi_libs%, }
5317
5318 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5319 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5320
5321 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5322 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5323 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5324 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5325 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5326 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5327 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5328 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5329 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"