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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --enable-rpath           use rpath to allow installing libraries in paths
  91                            not part of the dynamic linker search path
  92
  93 Licensing options:
  94   --enable-gpl             allow use of GPL code, the resulting libs
  95                            and binaries will be under GPL [no]
  96   --enable-version3        upgrade (L)GPL to version 3 [no]
  97   --enable-nonfree         allow use of nonfree code, the resulting libs
  98                            and binaries will be unredistributable [no]
  99
 100 Configuration options:
 101   --disable-static         do not build static libraries [no]
 102   --enable-shared          build shared libraries [no]
 103   --enable-small           optimize for size instead of speed
 104   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 105   --enable-gray            enable full grayscale support (slower color)
 106   --disable-swscale-alpha  disable alpha channel support in swscale
 107   --disable-all            disable building components, libraries and programs
 108   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
 109   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
 110   --enable-raise-major     increase major version numbers in sonames [no]
 111
 112 Program options:
 113   --disable-programs       do not build command line programs
 114   --disable-ffmpeg         disable ffmpeg build
 115   --disable-ffplay         disable ffplay build
 116   --disable-ffprobe        disable ffprobe build
 117   --disable-ffserver       disable ffserver build
 118
 119 Documentation options:
 120   --disable-doc            do not build documentation
 121   --disable-htmlpages      do not build HTML documentation pages
 122   --disable-manpages       do not build man documentation pages
 123   --disable-podpages       do not build POD documentation pages
 124   --disable-txtpages       do not build text documentation pages
 125
 126 Component options:
 127   --disable-avdevice       disable libavdevice build
 128   --disable-avcodec        disable libavcodec build
 129   --disable-avformat       disable libavformat build
 130   --disable-avutil         disable libavutil build
 131   --disable-swresample     disable libswresample build
 132   --disable-swscale        disable libswscale build
 133   --disable-postproc       disable libpostproc build
 134   --disable-avfilter       disable libavfilter build
 135   --enable-avresample      enable libavresample build [no]
 136   --disable-pthreads       disable pthreads [auto]
 137   --disable-w32threads     disable Win32 threads [auto]
 138   --disable-os2threads     disable OS/2 threads [auto]
 139   --disable-network        disable network support [no]
 140   --disable-dct            disable DCT code
 141   --disable-dwt            disable DWT code
 142   --disable-error-resilience disable error resilience code
 143   --disable-lsp            disable LSP code
 144   --disable-lzo            disable LZO decoder code
 145   --disable-mdct           disable MDCT code
 146   --disable-rdft           disable RDFT code
 147   --disable-fft            disable FFT code
 148
 149 Hardware accelerators:
 150   --disable-dxva2          disable DXVA2 code [autodetect]
 151   --disable-vaapi          disable VAAPI code [autodetect]
 152   --disable-vda            disable VDA code [autodetect]
 153   --disable-vdpau          disable VDPAU code [autodetect]
 154
 155 Individual component options:
 156   --disable-everything     disable all components listed below
 157   --disable-encoder=NAME   disable encoder NAME
 158   --enable-encoder=NAME    enable encoder NAME
 159   --disable-encoders       disable all encoders
 160   --disable-decoder=NAME   disable decoder NAME
 161   --enable-decoder=NAME    enable decoder NAME
 162   --disable-decoders       disable all decoders
 163   --disable-hwaccel=NAME   disable hwaccel NAME
 164   --enable-hwaccel=NAME    enable hwaccel NAME
 165   --disable-hwaccels       disable all hwaccels
 166   --disable-muxer=NAME     disable muxer NAME
 167   --enable-muxer=NAME      enable muxer NAME
 168   --disable-muxers         disable all muxers
 169   --disable-demuxer=NAME   disable demuxer NAME
 170   --enable-demuxer=NAME    enable demuxer NAME
 171   --disable-demuxers       disable all demuxers
 172   --enable-parser=NAME     enable parser NAME
 173   --disable-parser=NAME    disable parser NAME
 174   --disable-parsers        disable all parsers
 175   --enable-bsf=NAME        enable bitstream filter NAME
 176   --disable-bsf=NAME       disable bitstream filter NAME
 177   --disable-bsfs           disable all bitstream filters
 178   --enable-protocol=NAME   enable protocol NAME
 179   --disable-protocol=NAME  disable protocol NAME
 180   --disable-protocols      disable all protocols
 181   --enable-indev=NAME      enable input device NAME
 182   --disable-indev=NAME     disable input device NAME
 183   --disable-indevs         disable input devices
 184   --enable-outdev=NAME     enable output device NAME
 185   --disable-outdev=NAME    disable output device NAME
 186   --disable-outdevs        disable output devices
 187   --disable-devices        disable all devices
 188   --enable-filter=NAME     enable filter NAME
 189   --disable-filter=NAME    disable filter NAME
 190   --disable-filters        disable all filters
 191
 192 External library support:
 193   --enable-avisynth        enable reading of AviSynth script files [no]
 194   --disable-bzlib          disable bzlib [autodetect]
 195   --enable-fontconfig      enable fontconfig
 196   --enable-frei0r          enable frei0r video filtering
 197   --enable-gnutls          enable gnutls [no]
 198   --disable-iconv          disable iconv [autodetect]
 199   --enable-ladspa          enable LADSPA audio filtering
 200   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 201   --enable-libass          enable libass subtitles rendering [no]
 202   --enable-libbluray       enable BluRay reading using libbluray [no]
 203   --enable-libcaca         enable textual display using libcaca
 204   --enable-libcelt         enable CELT decoding via libcelt [no]
 205   --enable-libcdio         enable audio CD grabbing with libcdio
 206   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 207                            and libraw1394 [no]
 208   --enable-libfaac         enable AAC encoding via libfaac [no]
 209   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 210   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 211   --enable-libfreetype     enable libfreetype [no]
 212   --enable-libgme          enable Game Music Emu via libgme [no]
 213   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 214   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 215   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 216   --enable-libmodplug      enable ModPlug via libmodplug [no]
 217   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 218   --enable-libnut          enable NUT (de)muxing via libnut,
 219                            native (de)muxer exists [no]
 220   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 221   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 222   --enable-libopencv       enable video filtering via libopencv [no]
 223   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 224   --enable-libopus         enable Opus decoding via libopus [no]
 225   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 226   --enable-libquvi         enable quvi input via libquvi [no]
 227   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 228   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 229   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 230   --enable-libsoxr         enable Include libsoxr resampling [no]
 231   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 232   --enable-libssh          enable SFTP protocol via libssh [no]
 233   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 234   --enable-libtheora       enable Theora encoding via libtheora [no]
 235   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 236   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 237   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 238   --enable-libvidstab      enable video stabilization using vid.stab [no]
 239   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 240   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 241   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 242                            native implementation exists [no]
 243   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 244   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 245   --enable-libwebp         enable WebP encoding via libwebp [no]
 246   --enable-libx264         enable H.264 encoding via x264 [no]
 247   --enable-libx265         enable HEVC encoding via x265 [no]
 248   --enable-libxavs         enable AVS encoding via xavs [no]
 249   --enable-libxvid         enable Xvid encoding via xvidcore,
 250                            native MPEG-4/Xvid encoder exists [no]
 251   --enable-libzmq          enable message passing via libzmq [no]
 252   --enable-libzvbi         enable teletext support via libzvbi [no]
 253   --enable-decklink        enable Blackmagick DeckLink output [no]
 254   --enable-openal          enable OpenAL 1.1 capture support [no]
 255   --enable-opencl          enable OpenCL code
 256   --enable-opengl          enable OpenGL rendering [no]
 257   --enable-openssl         enable openssl [no]
 258   --enable-x11grab         enable X11 grabbing [no]
 259   --disable-xlib           disable xlib [autodetect]
 260   --disable-zlib           disable zlib [autodetect]
 261
 262 Toolchain options:
 263   --arch=ARCH              select architecture [$arch]
 264   --cpu=CPU                select the minimum required CPU (affects
 265                            instruction selection, may crash on older CPUs)
 266   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 267   --progs-suffix=SUFFIX    program name suffix []
 268   --enable-cross-compile   assume a cross-compiler is used
 269   --sysroot=PATH           root of cross-build tree
 270   --sysinclude=PATH        location of cross-build system headers
 271   --target-os=OS           compiler targets OS [$target_os]
 272   --target-exec=CMD        command to run executables on target
 273   --target-path=DIR        path to view of build directory on target
 274   --target-samples=DIR     path to samples directory on target
 275   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
 276   --toolchain=NAME         set tool defaults according to NAME
 277   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 278   --nm=NM                  use nm tool NM [$nm_default]
 279   --ar=AR                  use archive tool AR [$ar_default]
 280   --as=AS                  use assembler AS [$as_default]
 281   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
 282   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 283   --cc=CC                  use C compiler CC [$cc_default]
 284   --cxx=CXX                use C compiler CXX [$cxx_default]
 285   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 286   --ld=LD                  use linker LD [$ld_default]
 287   --pkg-config=PKGCONF     use pkg-config PKGCONF [$pkg_config_default]
 288   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 289   --host-cc=HOSTCC         use host C compiler HOSTCC
 290   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 291   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 292   --host-ld=HOSTLD         use host linker HOSTLD
 293   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 294   --host-libs=HLIBS        use libs HLIBS when linking for host
 295   --host-os=OS             compiler host OS [$target_os]
 296   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 297   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 298   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 299   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 300   --extra-version=STRING   version string suffix []
 301   --optflags=OPTFLAGS      override optimization-related compiler flags
 302   --build-suffix=SUFFIX    library name suffix []
 303   --enable-pic             build position-independent code
 304   --enable-thumb           compile for Thumb instruction set
 305   --enable-lto             use link-time optimization
 306
 307 Advanced options (experts only):
 308   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 309   --disable-symver         disable symbol versioning
 310   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 311   --disable-safe-bitstream-reader
 312                            disable buffer boundary checking in bitreaders
 313                            (faster, but may crash)
 314   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 315   --enable-sram            allow use of on-chip SRAM
 316
 317 Optimization options (experts only):
 318   --disable-asm            disable all assembler optimizations
 319   --disable-altivec        disable AltiVec optimizations
 320   --disable-amd3dnow       disable 3DNow! optimizations
 321   --disable-amd3dnowext    disable 3DNow! extended optimizations
 322   --disable-mmx            disable MMX optimizations
 323   --disable-mmxext         disable MMXEXT optimizations
 324   --disable-sse            disable SSE optimizations
 325   --disable-sse2           disable SSE2 optimizations
 326   --disable-sse3           disable SSE3 optimizations
 327   --disable-ssse3          disable SSSE3 optimizations
 328   --disable-sse4           disable SSE4 optimizations
 329   --disable-sse42          disable SSE4.2 optimizations
 330   --disable-avx            disable AVX optimizations
 331   --disable-xop            disable XOP optimizations
 332   --disable-fma3           disable FMA3 optimizations
 333   --disable-fma4           disable FMA4 optimizations
 334   --disable-avx2           disable AVX2 optimizations
 335   --disable-armv5te        disable armv5te optimizations
 336   --disable-armv6          disable armv6 optimizations
 337   --disable-armv6t2        disable armv6t2 optimizations
 338   --disable-vfp            disable VFP optimizations
 339   --disable-neon           disable NEON optimizations
 340   --disable-inline-asm     disable use of inline assembler
 341   --disable-yasm           disable use of yasm assembler
 342   --disable-mips32r2       disable MIPS32R2 optimizations
 343   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 344   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 345   --disable-mipsfpu        disable floating point MIPS optimizations
 346   --disable-fast-unaligned consider unaligned accesses slow
 347
 348 Developer options (useful when working on FFmpeg itself):
 349   --disable-debug          disable debugging symbols
 350   --enable-debug=LEVEL     set the debug level [$debuglevel]
 351   --disable-optimizations  disable compiler optimizations
 352   --enable-extra-warnings  enable more compiler warnings
 353   --disable-stripping      disable stripping of executables and shared libraries
 354   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 355                            2 causes a slowdown at runtime.
 356   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 357   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 358                            leaks and errors, using the specified valgrind binary.
 359                            Cannot be combined with --target-exec
 360   --enable-ftrapv          Trap arithmetic overflows
 361   --samples=PATH           location of test samples for FATE, if not set use
 362                            \$FATE_SAMPLES at make invocation time.
 363   --enable-neon-clobber-test check NEON registers for clobbering (should be
 364                            used only for debugging purposes)
 365   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 366                            should be used only for debugging purposes)
 367   --enable-random          randomly enable/disable components
 368   --disable-random
 369   --enable-random=LIST     randomly enable/disable specific components or
 370   --disable-random=LIST    component groups. LIST is a comma-separated list
 371                            of NAME[:PROB] entries where NAME is a component
 372                            (group) and PROB the probability associated with
 373                            NAME (default 0.5).
 374   --random-seed=VALUE      seed value for --enable/disable-random
 375
 376 NOTE: Object files are built at the place where configure is launched.
 377 EOF
 378   exit 0
 379 }
 380
 381 quotes='""'
 382
 383 log(){
 384     echo "$@" >> $logfile
 385 }
 386
 387 log_file(){
 388     log BEGIN $1
 389     pr -n -t $1 >> $logfile
 390     log END $1
 391 }
 392
 393 echolog(){
 394     log "$@"
 395     echo "$@"
 396 }
 397
 398 warn(){
 399     log "WARNING: $*"
 400     WARNINGS="${WARNINGS}WARNING: $*\n"
 401 }
 402
 403 die(){
 404     echolog "$@"
 405     cat <<EOF
 406
 407 If you think configure made a mistake, make sure you are using the latest
 408 version from Git.  If the latest version fails, report the problem to the
 409 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 410 EOF
 411     if disabled logging; then
 412         cat <<EOF
 413 Rerun configure with logging enabled (do not use --disable-logging), and
 414 include the log this produces with your report.
 415 EOF
 416     else
 417         cat <<EOF
 418 Include the log file "$logfile" produced by configure as this will help
 419 solving the problem.
 420 EOF
 421     fi
 422     exit 1
 423 }
 424
 425 # Avoid locale weirdness, besides we really just want to translate ASCII.
 426 toupper(){
 427     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 428 }
 429
 430 tolower(){
 431     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 432 }
 433
 434 c_escape(){
 435     echo "$*" | sed 's/["\\]/\\\0/g'
 436 }
 437
 438 sh_quote(){
 439     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 440     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 441     echo "$v"
 442 }
 443
 444 cleanws(){
 445     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
 446 }
 447
 448 filter(){
 449     pat=$1
 450     shift
 451     for v; do
 452         eval "case $v in $pat) echo $v ;; esac"
 453     done
 454 }
 455
 456 filter_out(){
 457     pat=$1
 458     shift
 459     for v; do
 460         eval "case $v in $pat) ;; *) echo $v ;; esac"
 461     done
 462 }
 463
 464 map(){
 465     m=$1
 466     shift
 467     for v; do eval $m; done
 468 }
 469
 470 add_suffix(){
 471     suffix=$1
 472     shift
 473     for v; do echo ${v}${suffix}; done
 474 }
 475
 476 set_all(){
 477     value=$1
 478     shift
 479     for var in $*; do
 480         eval $var=$value
 481     done
 482 }
 483
 484 set_weak(){
 485     value=$1
 486     shift
 487     for var; do
 488         eval : \${$var:=$value}
 489     done
 490 }
 491
 492 sanitize_var_name(){
 493     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 494 }
 495
 496 set_safe(){
 497     var=$1
 498     shift
 499     eval $(sanitize_var_name "$var")='$*'
 500 }
 501
 502 get_safe(){
 503     eval echo \$$(sanitize_var_name "$1")
 504 }
 505
 506 pushvar(){
 507     for pvar in $*; do
 508         eval level=\${${pvar}_level:=0}
 509         eval ${pvar}_${level}="\$$pvar"
 510         eval ${pvar}_level=$(($level+1))
 511     done
 512 }
 513
 514 popvar(){
 515     for pvar in $*; do
 516         eval level=\${${pvar}_level:-0}
 517         test $level = 0 && continue
 518         eval level=$(($level-1))
 519         eval $pvar="\${${pvar}_${level}}"
 520         eval ${pvar}_level=$level
 521         eval unset ${pvar}_${level}
 522     done
 523 }
 524
 525 enable(){
 526     set_all yes $*
 527 }
 528
 529 disable(){
 530     set_all no $*
 531 }
 532
 533 enable_weak(){
 534     set_weak yes $*
 535 }
 536
 537 disable_weak(){
 538     set_weak no $*
 539 }
 540
 541 enable_safe(){
 542     for var; do
 543         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 544     done
 545 }
 546
 547 disable_safe(){
 548     for var; do
 549         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 550     done
 551 }
 552
 553 do_enable_deep(){
 554     for var; do
 555         enabled $var && continue
 556         eval sel="\$${var}_select"
 557         eval sgs="\$${var}_suggest"
 558         pushvar var sgs
 559         enable_deep $sel
 560         popvar sgs
 561         enable_deep_weak $sgs
 562         popvar var
 563     done
 564 }
 565
 566 enable_deep(){
 567     do_enable_deep $*
 568     enable $*
 569 }
 570
 571 enable_deep_weak(){
 572     for var; do
 573         disabled $var && continue
 574         pushvar var
 575         do_enable_deep $var
 576         popvar var
 577         enable_weak $var
 578     done
 579 }
 580
 581 enabled(){
 582     test "${1#!}" = "$1" && op== || op=!=
 583     eval test "x\$${1#!}" $op "xyes"
 584 }
 585
 586 disabled(){
 587     test "${1#!}" = "$1" && op== || op=!=
 588     eval test "x\$${1#!}" $op "xno"
 589 }
 590
 591 enabled_all(){
 592     for opt; do
 593         enabled $opt || return 1
 594     done
 595 }
 596
 597 disabled_all(){
 598     for opt; do
 599         disabled $opt || return 1
 600     done
 601 }
 602
 603 enabled_any(){
 604     for opt; do
 605         enabled $opt && return 0
 606     done
 607 }
 608
 609 disabled_any(){
 610     for opt; do
 611         disabled $opt && return 0
 612     done
 613     return 1
 614 }
 615
 616 set_default(){
 617     for opt; do
 618         eval : \${$opt:=\$${opt}_default}
 619     done
 620 }
 621
 622 is_in(){
 623     value=$1
 624     shift
 625     for var in $*; do
 626         [ $var = $value ] && return 0
 627     done
 628     return 1
 629 }
 630
 631 do_check_deps(){
 632     for cfg; do
 633         cfg="${cfg#!}"
 634         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 635         disabled ${cfg}_checking && continue
 636         enable ${cfg}_checking
 637         append allopts $cfg
 638
 639         eval dep_all="\$${cfg}_deps"
 640         eval dep_any="\$${cfg}_deps_any"
 641         eval dep_sel="\$${cfg}_select"
 642         eval dep_sgs="\$${cfg}_suggest"
 643         eval dep_ifa="\$${cfg}_if"
 644         eval dep_ifn="\$${cfg}_if_any"
 645
 646         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 647         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 648         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 649
 650         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 651         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 652         enabled_all  $dep_all || disable $cfg
 653         enabled_any  $dep_any || disable $cfg
 654         disabled_any $dep_sel && disable $cfg
 655
 656         if enabled $cfg; then
 657             enable_deep $dep_sel
 658             enable_deep_weak $dep_sgs
 659         fi
 660
 661         disable ${cfg}_checking
 662     done
 663 }
 664
 665 check_deps(){
 666     unset allopts
 667
 668     do_check_deps "$@"
 669
 670     for cfg in $allopts; do
 671         enabled $cfg || continue
 672         eval dep_extralibs="\$${cfg}_extralibs"
 673         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 674     done
 675 }
 676
 677 print_config(){
 678     pfx=$1
 679     files=$2
 680     shift 2
 681     map 'eval echo "$v \${$v:-no}"' "$@" |
 682     awk "BEGIN { split(\"$files\", files) }
 683         {
 684             c = \"$pfx\" toupper(\$1);
 685             v = \$2;
 686             sub(/yes/, 1, v);
 687             sub(/no/,  0, v);
 688             for (f in files) {
 689                 file = files[f];
 690                 if (file ~ /\\.h\$/) {
 691                     printf(\"#define %s %d\\n\", c, v) >>file;
 692                 } else if (file ~ /\\.asm\$/) {
 693                     printf(\"%%define %s %d\\n\", c, v) >>file;
 694                 } else if (file ~ /\\.mak\$/) {
 695                     n = -v ? \"\" : \"!\";
 696                     printf(\"%s%s=yes\\n\", n, c) >>file;
 697                 } else if (file ~ /\\.texi\$/) {
 698                     pre = -v ? \"\" : \"@c \";
 699                     yesno = \$2;
 700                     c2 = tolower(c);
 701                     gsub(/_/, \"-\", c2);
 702                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 703                 }
 704             }
 705         }"
 706 }
 707
 708 print_enabled(){
 709     suf=$1
 710     shift
 711     for v; do
 712         enabled $v && printf "%s\n" ${v%$suf};
 713     done
 714 }
 715
 716 append(){
 717     var=$1
 718     shift
 719     eval "$var=\"\$$var $*\""
 720 }
 721
 722 prepend(){
 723     var=$1
 724     shift
 725     eval "$var=\"$* \$$var\""
 726 }
 727
 728 add_cppflags(){
 729     append CPPFLAGS "$@"
 730 }
 731
 732 add_cflags(){
 733     append CFLAGS $($cflags_filter "$@")
 734 }
 735
 736 add_cxxflags(){
 737     append CXXFLAGS $($cflags_filter "$@")
 738 }
 739
 740 add_asflags(){
 741     append ASFLAGS $($asflags_filter "$@")
 742 }
 743
 744 add_ldflags(){
 745     append LDFLAGS $($ldflags_filter "$@")
 746 }
 747
 748 add_stripflags(){
 749     append ASMSTRIPFLAGS "$@"
 750 }
 751
 752 add_extralibs(){
 753     prepend extralibs $($ldflags_filter "$@")
 754 }
 755
 756 add_host_cppflags(){
 757     append host_cppflags "$@"
 758 }
 759
 760 add_host_cflags(){
 761     append host_cflags $($host_cflags_filter "$@")
 762 }
 763
 764 add_host_ldflags(){
 765     append host_ldflags $($host_ldflags_filter "$@")
 766 }
 767
 768 add_compat(){
 769     append compat_objs $1
 770     shift
 771     map 'add_cppflags -D$v' "$@"
 772 }
 773
 774 check_cmd(){
 775     log "$@"
 776     "$@" >> $logfile 2>&1
 777 }
 778
 779 cc_o(){
 780     eval printf '%s\\n' $CC_O
 781 }
 782
 783 cc_e(){
 784     eval printf '%s\\n' $CC_E
 785 }
 786
 787 check_cc(){
 788     log check_cc "$@"
 789     cat > $TMPC
 790     log_file $TMPC
 791     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 792 }
 793
 794 check_cxx(){
 795     log check_cxx "$@"
 796     cat > $TMPCPP
 797     log_file $TMPCPP
 798     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 799 }
 800
 801 check_cpp(){
 802     log check_cpp "$@"
 803     cat > $TMPC
 804     log_file $TMPC
 805     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 806 }
 807
 808 as_o(){
 809     eval printf '%s\\n' $AS_O
 810 }
 811
 812 check_as(){
 813     log check_as "$@"
 814     cat > $TMPS
 815     log_file $TMPS
 816     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 817 }
 818
 819 check_inline_asm(){
 820     log check_inline_asm "$@"
 821     name="$1"
 822     code="$2"
 823     shift 2
 824     disable $name
 825     check_cc "$@" <<EOF && enable $name
 826 void foo(void){ __asm__ volatile($code); }
 827 EOF
 828 }
 829
 830 check_insn(){
 831     log check_insn "$@"
 832     check_inline_asm ${1}_inline "\"$2\""
 833     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 834 }
 835
 836 check_yasm(){
 837     log check_yasm "$@"
 838     echo "$1" > $TMPS
 839     log_file $TMPS
 840     shift 1
 841     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 842 }
 843
 844 ld_o(){
 845     eval printf '%s\\n' $LD_O
 846 }
 847
 848 check_ld(){
 849     log check_ld "$@"
 850     type=$1
 851     shift 1
 852     flags=$(filter_out '-l*|*.so' $@)
 853     libs=$(filter '-l*|*.so' $@)
 854     check_$type $($cflags_filter $flags) || return
 855     flags=$($ldflags_filter $flags)
 856     libs=$($ldflags_filter $libs)
 857     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 858 }
 859
 860 print_include(){
 861     hdr=$1
 862     test "${hdr%.h}" = "${hdr}" &&
 863         echo "#include $hdr"    ||
 864         echo "#include <$hdr>"
 865 }
 866
 867 check_code(){
 868     log check_code "$@"
 869     check=$1
 870     headers=$2
 871     code=$3
 872     shift 3
 873     {
 874         for hdr in $headers; do
 875             print_include $hdr
 876         done
 877         echo "int main(void) { $code; return 0; }"
 878     } | check_$check "$@"
 879 }
 880
 881 check_cppflags(){
 882     log check_cppflags "$@"
 883     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 884 int x;
 885 EOF
 886 }
 887
 888 test_cflags(){
 889     log test_cflags "$@"
 890     set -- $($cflags_filter "$@")
 891     check_cc "$@" <<EOF
 892 int x;
 893 EOF
 894 }
 895
 896 check_cflags(){
 897     log check_cflags "$@"
 898     test_cflags "$@" && add_cflags "$@"
 899 }
 900
 901 check_cxxflags(){
 902     log check_cxxflags "$@"
 903     set -- $($cflags_filter "$@")
 904     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 905 int x;
 906 EOF
 907 }
 908
 909 test_ldflags(){
 910     log test_ldflags "$@"
 911     check_ld "cc" "$@" <<EOF
 912 int main(void){ return 0; }
 913 EOF
 914 }
 915
 916 check_ldflags(){
 917     log check_ldflags "$@"
 918     test_ldflags "$@" && add_ldflags "$@"
 919 }
 920
 921 test_stripflags(){
 922     log test_stripflags "$@"
 923     # call check_cc to get a fresh TMPO
 924     check_cc <<EOF
 925 int main(void) { return 0; }
 926 EOF
 927     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
 928 }
 929
 930 check_stripflags(){
 931     log check_stripflags "$@"
 932     test_stripflags "$@" && add_stripflags "$@"
 933 }
 934
 935 check_header(){
 936     log check_header "$@"
 937     header=$1
 938     shift
 939     disable_safe $header
 940     check_cpp "$@" <<EOF && enable_safe $header
 941 #include <$header>
 942 int x;
 943 EOF
 944 }
 945
 946 check_func(){
 947     log check_func "$@"
 948     func=$1
 949     shift
 950     disable $func
 951     check_ld "cc" "$@" <<EOF && enable $func
 952 extern int $func();
 953 int main(void){ $func(); }
 954 EOF
 955 }
 956
 957 check_mathfunc(){
 958     log check_mathfunc "$@"
 959     func=$1
 960     narg=$2
 961     shift 2
 962     test $narg = 2 && args="f, g" || args="f"
 963     disable $func
 964     check_ld "cc" "$@" <<EOF && enable $func
 965 #include <math.h>
 966 float foo(float f, float g) { return $func($args); }
 967 int main(void){ return (int) foo; }
 968 EOF
 969 }
 970
 971 check_func_headers(){
 972     log check_func_headers "$@"
 973     headers=$1
 974     funcs=$2
 975     shift 2
 976     {
 977         for hdr in $headers; do
 978             print_include $hdr
 979         done
 980         for func in $funcs; do
 981             echo "long check_$func(void) { return (long) $func; }"
 982         done
 983         echo "int main(void) { return 0; }"
 984     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 985 }
 986
 987 check_class_headers_cpp(){
 988     log check_class_headers_cpp "$@"
 989     headers=$1
 990     classes=$2
 991     shift 2
 992     {
 993         for hdr in $headers; do
 994             echo "#include <$hdr>"
 995         done
 996         echo "int main(void) { "
 997         i=1
 998         for class in $classes; do
 999             echo "$class obj$i;"
1000             i=$(expr $i + 1)
1001         done
1002         echo "return 0; }"
1003     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1004 }
1005
1006 check_cpp_condition(){
1007     log check_cpp_condition "$@"
1008     header=$1
1009     condition=$2
1010     shift 2
1011     check_cpp "$@" <<EOF
1012 #include <$header>
1013 #if !($condition)
1014 #error "unsatisfied condition: $condition"
1015 #endif
1016 EOF
1017 }
1018
1019 check_lib(){
1020     log check_lib "$@"
1021     header="$1"
1022     func="$2"
1023     shift 2
1024     check_header $header && check_func $func "$@" && add_extralibs "$@"
1025 }
1026
1027 check_lib2(){
1028     log check_lib2 "$@"
1029     headers="$1"
1030     funcs="$2"
1031     shift 2
1032     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1033 }
1034
1035 check_lib_cpp(){
1036     log check_lib_cpp "$@"
1037     headers="$1"
1038     classes="$2"
1039     shift 2
1040     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1041 }
1042
1043 check_pkg_config(){
1044     log check_pkg_config "$@"
1045     pkgandversion="$1"
1046     pkg="${1%% *}"
1047     headers="$2"
1048     funcs="$3"
1049     shift 3
1050     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1051     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1052     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1053     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1054         set_safe ${pkg}_cflags $pkg_cflags   &&
1055         set_safe ${pkg}_libs   $pkg_libs
1056 }
1057
1058 check_exec(){
1059     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1060 }
1061
1062 check_exec_crash(){
1063     code=$(cat)
1064
1065     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1066     # are safe but may not be available everywhere.  Thus we use
1067     # raise(SIGTERM) instead.  The check is run in a subshell so we
1068     # can redirect the "Terminated" message from the shell.  SIGBUS
1069     # is not defined by standard C so it is used conditionally.
1070
1071     (check_exec "$@") >> $logfile 2>&1 <<EOF
1072 #include <signal.h>
1073 static void sighandler(int sig){
1074     raise(SIGTERM);
1075 }
1076 int foo(void){
1077     $code
1078 }
1079 int (*func_ptr)(void) = foo;
1080 int main(void){
1081     signal(SIGILL, sighandler);
1082     signal(SIGFPE, sighandler);
1083     signal(SIGSEGV, sighandler);
1084 #ifdef SIGBUS
1085     signal(SIGBUS, sighandler);
1086 #endif
1087     return func_ptr();
1088 }
1089 EOF
1090 }
1091
1092 check_type(){
1093     log check_type "$@"
1094     headers=$1
1095     type=$2
1096     shift 2
1097     disable_safe "$type"
1098     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1099 }
1100
1101 check_struct(){
1102     log check_struct "$@"
1103     headers=$1
1104     struct=$2
1105     member=$3
1106     shift 3
1107     disable_safe "${struct}_${member}"
1108     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1109         enable_safe "${struct}_${member}"
1110 }
1111
1112 check_builtin(){
1113     log check_builtin "$@"
1114     name=$1
1115     headers=$2
1116     builtin=$3
1117     shift 3
1118     disable "$name"
1119     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1120 }
1121
1122 check_compile_assert(){
1123     log check_compile_assert "$@"
1124     name=$1
1125     headers=$2
1126     condition=$3
1127     shift 3
1128     disable "$name"
1129     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1130 }
1131
1132 require(){
1133     name="$1"
1134     header="$2"
1135     func="$3"
1136     shift 3
1137     check_lib $header $func "$@" || die "ERROR: $name not found"
1138 }
1139
1140 require2(){
1141     name="$1"
1142     headers="$2"
1143     func="$3"
1144     shift 3
1145     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1146 }
1147
1148 require_cpp(){
1149     name="$1"
1150     headers="$2"
1151     classes="$3"
1152     shift 3
1153     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1154 }
1155
1156 require_pkg_config(){
1157     pkg="$1"
1158     check_pkg_config "$@" || die "ERROR: $pkg not found"
1159     add_cflags    $(get_safe ${pkg}_cflags)
1160     add_extralibs $(get_safe ${pkg}_libs)
1161 }
1162
1163 require_libfreetype(){
1164     log require_libfreetype "$@"
1165     pkg="freetype2"
1166     check_cmd $pkg_config --exists --print-errors $pkg \
1167       || die "ERROR: $pkg not found"
1168     pkg_cflags=$($pkg_config --cflags $pkg)
1169     pkg_libs=$($pkg_config --libs $pkg)
1170     {
1171         echo "#include <ft2build.h>"
1172         echo "#include FT_FREETYPE_H"
1173         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1174         echo "int main(void) { return 0; }"
1175     } | check_ld "cc" $pkg_cflags $pkg_libs \
1176       && set_safe ${pkg}_cflags $pkg_cflags \
1177       && set_safe ${pkg}_libs   $pkg_libs \
1178       || die "ERROR: $pkg not found"
1179     add_cflags    $(get_safe ${pkg}_cflags)
1180     add_extralibs $(get_safe ${pkg}_libs)
1181 }
1182
1183 hostcc_e(){
1184     eval printf '%s\\n' $HOSTCC_E
1185 }
1186
1187 hostcc_o(){
1188     eval printf '%s\\n' $HOSTCC_O
1189 }
1190
1191 check_host_cc(){
1192     log check_host_cc "$@"
1193     cat > $TMPC
1194     log_file $TMPC
1195     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1196 }
1197
1198 check_host_cpp(){
1199     log check_host_cpp "$@"
1200     cat > $TMPC
1201     log_file $TMPC
1202     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1203 }
1204
1205 check_host_cppflags(){
1206     log check_host_cppflags "$@"
1207     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1208 int x;
1209 EOF
1210 }
1211
1212 check_host_cflags(){
1213     log check_host_cflags "$@"
1214     set -- $($host_cflags_filter "$@")
1215     check_host_cc "$@" <<EOF && append host_cflags "$@"
1216 int x;
1217 EOF
1218 }
1219
1220 check_host_cpp_condition(){
1221     log check_host_cpp_condition "$@"
1222     header=$1
1223     condition=$2
1224     shift 2
1225     check_host_cpp "$@" <<EOF
1226 #include <$header>
1227 #if !($condition)
1228 #error "unsatisfied condition: $condition"
1229 #endif
1230 EOF
1231 }
1232
1233 apply(){
1234     file=$1
1235     shift
1236     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1237 }
1238
1239 cp_if_changed(){
1240     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1241     mkdir -p "$(dirname $2)"
1242     $cp_f "$1" "$2"
1243 }
1244
1245 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1246 # system-dependent things.
1247
1248 COMPONENT_LIST="
1249     bsfs
1250     decoders
1251     demuxers
1252     encoders
1253     filters
1254     hwaccels
1255     indevs
1256     muxers
1257     outdevs
1258     parsers
1259     protocols
1260 "
1261
1262 EXAMPLE_LIST="
1263     avio_reading_example
1264     avcodec_example
1265     demuxing_decoding_example
1266     filter_audio_example
1267     filtering_audio_example
1268     filtering_video_example
1269     metadata_example
1270     muxing_example
1271     remuxing_example
1272     resampling_audio_example
1273     scaling_video_example
1274     transcode_aac_example
1275     transcoding_example
1276 "
1277
1278 EXTERNAL_LIBRARY_LIST="
1279     avisynth
1280     bzlib
1281     crystalhd
1282     decklink
1283     fontconfig
1284     frei0r
1285     gnutls
1286     iconv
1287     ladspa
1288     libaacplus
1289     libass
1290     libbluray
1291     libcaca
1292     libcdio
1293     libcelt
1294     libdc1394
1295     libfaac
1296     libfdk_aac
1297     libflite
1298     libfreetype
1299     libgme
1300     libgsm
1301     libiec61883
1302     libilbc
1303     libmodplug
1304     libmp3lame
1305     libnut
1306     libopencore_amrnb
1307     libopencore_amrwb
1308     libopencv
1309     libopenjpeg
1310     libopus
1311     libpulse
1312     libquvi
1313     librtmp
1314     libschroedinger
1315     libshine
1316     libsoxr
1317     libspeex
1318     libssh
1319     libstagefright_h264
1320     libtheora
1321     libtwolame
1322     libutvideo
1323     libv4l2
1324     libvidstab
1325     libvo_aacenc
1326     libvo_amrwbenc
1327     libvorbis
1328     libvpx
1329     libwavpack
1330     libwebp
1331     libx264
1332     libx265
1333     libxavs
1334     libxvid
1335     libzmq
1336     libzvbi
1337     openal
1338     opencl
1339     opengl
1340     openssl
1341     x11grab
1342     xlib
1343     zlib
1344 "
1345
1346 DOCUMENT_LIST="
1347     doc
1348     htmlpages
1349     manpages
1350     podpages
1351     txtpages
1352 "
1353
1354 FEATURE_LIST="
1355     ftrapv
1356     gray
1357     hardcoded_tables
1358     runtime_cpudetect
1359     safe_bitstream_reader
1360     shared
1361     small
1362     sram
1363     static
1364     swscale_alpha
1365 "
1366
1367 HWACCEL_LIST="
1368     dxva2
1369     vaapi
1370     vda
1371     vdpau
1372     xvmc
1373 "
1374
1375 LIBRARY_LIST="
1376     avcodec
1377     avdevice
1378     avfilter
1379     avformat
1380     avresample
1381     avutil
1382     postproc
1383     swresample
1384     swscale
1385 "
1386
1387 LICENSE_LIST="
1388     gpl
1389     nonfree
1390     version3
1391 "
1392
1393 PROGRAM_LIST="
1394     ffplay
1395     ffprobe
1396     ffserver
1397     ffmpeg
1398 "
1399
1400 SUBSYSTEM_LIST="
1401     dct
1402     dwt
1403     error_resilience
1404     fast_unaligned
1405     fft
1406     lsp
1407     lzo
1408     mdct
1409     network
1410     rdft
1411 "
1412
1413 CONFIG_LIST="
1414     $COMPONENT_LIST
1415     $DOCUMENT_LIST
1416     $EXAMPLE_LIST
1417     $EXTERNAL_LIBRARY_LIST
1418     $FEATURE_LIST
1419     $HWACCEL_LIST
1420     $LICENSE_LIST
1421     $LIBRARY_LIST
1422     $PROGRAM_LIST
1423     $SUBSYSTEM_LIST
1424     incompatible_libav_abi
1425     incompatible_fork_abi
1426     memalign_hack
1427     memory_poisoning
1428     neon_clobber_test
1429     pic
1430     pod2man
1431     raise_major
1432     thumb
1433     xmm_clobber_test
1434 "
1435
1436 THREADS_LIST="
1437     pthreads
1438     os2threads
1439     w32threads
1440 "
1441
1442 ATOMICS_LIST="
1443     atomics_gcc
1444     atomics_suncc
1445     atomics_win32
1446 "
1447
1448 ARCH_LIST="
1449     aarch64
1450     alpha
1451     arm
1452     avr32
1453     avr32_ap
1454     avr32_uc
1455     bfin
1456     ia64
1457     m68k
1458     mips
1459     mips64
1460     parisc
1461     ppc
1462     ppc64
1463     s390
1464     sh4
1465     sparc
1466     sparc64
1467     tilegx
1468     tilepro
1469     tomi
1470     x86
1471     x86_32
1472     x86_64
1473 "
1474
1475 ARCH_EXT_LIST_ARM="
1476     armv5te
1477     armv6
1478     armv6t2
1479     neon
1480     vfp
1481     vfpv3
1482 "
1483
1484 ARCH_EXT_LIST_MIPS="
1485     mipsfpu
1486     mips32r2
1487     mipsdspr1
1488     mipsdspr2
1489 "
1490
1491 ARCH_EXT_LIST_X86_SIMD="
1492     amd3dnow
1493     amd3dnowext
1494     avx
1495     avx2
1496     fma3
1497     fma4
1498     mmx
1499     mmxext
1500     sse
1501     sse2
1502     sse3
1503     sse4
1504     sse42
1505     ssse3
1506     xop
1507 "
1508
1509 ARCH_EXT_LIST_PPC="
1510     altivec
1511     dcbzl
1512     ldbrx
1513     ppc4xx
1514 "
1515
1516 ARCH_EXT_LIST_X86="
1517     $ARCH_EXT_LIST_X86_SIMD
1518     cpunop
1519     i686
1520 "
1521
1522 ARCH_EXT_LIST="
1523     $ARCH_EXT_LIST_ARM
1524     $ARCH_EXT_LIST_PPC
1525     $ARCH_EXT_LIST_X86
1526     $ARCH_EXT_LIST_MIPS
1527     loongson
1528 "
1529
1530 ARCH_FEATURES="
1531     aligned_stack
1532     fast_64bit
1533     fast_clz
1534     fast_cmov
1535     local_aligned_8
1536     local_aligned_16
1537 "
1538
1539 BUILTIN_LIST="
1540     atomic_cas_ptr
1541     machine_rw_barrier
1542     MemoryBarrier
1543     mm_empty
1544     rdtsc
1545     sarestart
1546     sync_val_compare_and_swap
1547 "
1548 HAVE_LIST_CMDLINE="
1549     inline_asm
1550     symver
1551     yasm
1552 "
1553
1554 HAVE_LIST_PUB="
1555     bigendian
1556     fast_unaligned
1557     incompatible_libav_abi
1558     incompatible_fork_abi
1559 "
1560
1561 HEADERS_LIST="
1562     alsa_asoundlib_h
1563     altivec_h
1564     arpa_inet_h
1565     asm_types_h
1566     cdio_paranoia_h
1567     cdio_paranoia_paranoia_h
1568     CL_cl_h
1569     dev_bktr_ioctl_bt848_h
1570     dev_bktr_ioctl_meteor_h
1571     dev_ic_bt8xx_h
1572     dev_video_bktr_ioctl_bt848_h
1573     dev_video_meteor_ioctl_meteor_h
1574     direct_h
1575     dlfcn_h
1576     dxva_h
1577     ES2_gl_h
1578     gsm_h
1579     io_h
1580     mach_mach_time_h
1581     machine_ioctl_bt848_h
1582     machine_ioctl_meteor_h
1583     malloc_h
1584     openjpeg_1_5_openjpeg_h
1585     OpenGL_gl3_h
1586     poll_h
1587     sndio_h
1588     soundcard_h
1589     sys_mman_h
1590     sys_param_h
1591     sys_resource_h
1592     sys_select_h
1593     sys_soundcard_h
1594     sys_time_h
1595     sys_un_h
1596     sys_videoio_h
1597     termios_h
1598     unistd_h
1599     windows_h
1600     winsock2_h
1601 "
1602
1603 MATH_FUNCS="
1604     atanf
1605     atan2f
1606     cbrt
1607     cbrtf
1608     cosf
1609     exp2
1610     exp2f
1611     expf
1612     isinf
1613     isnan
1614     ldexpf
1615     llrint
1616     llrintf
1617     log2
1618     log2f
1619     log10f
1620     lrint
1621     lrintf
1622     powf
1623     rint
1624     round
1625     roundf
1626     sinf
1627     trunc
1628     truncf
1629 "
1630
1631 SYSTEM_FUNCS="
1632     access
1633     aligned_malloc
1634     clock_gettime
1635     closesocket
1636     CommandLineToArgvW
1637     CryptGenRandom
1638     dlopen
1639     fcntl
1640     flt_lim
1641     fork
1642     getaddrinfo
1643     gethrtime
1644     getopt
1645     GetProcessAffinityMask
1646     GetProcessMemoryInfo
1647     GetProcessTimes
1648     getrusage
1649     getservbyport
1650     GetSystemTimeAsFileTime
1651     gettimeofday
1652     glob
1653     glXGetProcAddress
1654     inet_aton
1655     isatty
1656     jack_port_get_latency_range
1657     kbhit
1658     localtime_r
1659     lzo1x_999_compress
1660     mach_absolute_time
1661     MapViewOfFile
1662     memalign
1663     mkstemp
1664     mmap
1665     mprotect
1666     nanosleep
1667     PeekNamedPipe
1668     posix_memalign
1669     pthread_cancel
1670     sched_getaffinity
1671     SetConsoleTextAttribute
1672     setmode
1673     setrlimit
1674     Sleep
1675     strerror_r
1676     sysconf
1677     sysctl
1678     usleep
1679     VirtualAlloc
1680     wglGetProcAddress
1681 "
1682
1683 TOOLCHAIN_FEATURES="
1684     asm_mod_q
1685     attribute_may_alias
1686     attribute_packed
1687     ebp_available
1688     ebx_available
1689     gnu_as
1690     gnu_windres
1691     ibm_asm
1692     inline_asm_labels
1693     inline_asm_nonlocal_labels
1694     inline_asm_direct_symbol_refs
1695     pragma_deprecated
1696     rsync_contimeout
1697     symver_asm_label
1698     symver_gnu_asm
1699     vfp_args
1700     xform_asm
1701     xmm_clobbers
1702 "
1703
1704 TYPES_LIST="
1705     socklen_t
1706     struct_addrinfo
1707     struct_group_source_req
1708     struct_ip_mreq_source
1709     struct_ipv6_mreq
1710     struct_pollfd
1711     struct_rusage_ru_maxrss
1712     struct_sctp_event_subscribe
1713     struct_sockaddr_in6
1714     struct_sockaddr_sa_len
1715     struct_sockaddr_storage
1716     struct_stat_st_mtim_tv_nsec
1717     struct_v4l2_frmivalenum_discrete
1718 "
1719
1720 HAVE_LIST="
1721     $ARCH_EXT_LIST
1722     $(add_suffix _external $ARCH_EXT_LIST)
1723     $(add_suffix _inline   $ARCH_EXT_LIST)
1724     $ARCH_FEATURES
1725     $ATOMICS_LIST
1726     $BUILTIN_LIST
1727     $HAVE_LIST_CMDLINE
1728     $HAVE_LIST_PUB
1729     $HEADERS_LIST
1730     $MATH_FUNCS
1731     $SYSTEM_FUNCS
1732     $THREADS_LIST
1733     $TOOLCHAIN_FEATURES
1734     $TYPES_LIST
1735     atomics_native
1736     dos_paths
1737     libc_msvcrt
1738     libdc1394_1
1739     libdc1394_2
1740     makeinfo
1741     perl
1742     pod2man
1743     sdl
1744     texi2html
1745     threads
1746     vdpau_x11
1747     xlib
1748 "
1749
1750 # options emitted with CONFIG_ prefix but not available on the command line
1751 CONFIG_EXTRA="
1752     aandcttables
1753     ac3dsp
1754     audio_frame_queue
1755     cabac
1756     dsputil
1757     exif
1758     frame_thread_encoder
1759     gcrypt
1760     golomb
1761     gplv3
1762     h263dsp
1763     h264chroma
1764     h264dsp
1765     h264pred
1766     h264qpel
1767     hpeldsp
1768     huffman
1769     intrax8
1770     lgplv3
1771     llviddsp
1772     lpc
1773     mpegaudio
1774     mpegaudiodsp
1775     mpegvideo
1776     mpegvideoenc
1777     nettle
1778     rangecoder
1779     riffdec
1780     riffenc
1781     rtpdec
1782     rtpenc_chain
1783     sinewin
1784     tpeldsp
1785     videodsp
1786     vp3dsp
1787 "
1788
1789 CMDLINE_SELECT="
1790     $ARCH_EXT_LIST
1791     $CONFIG_LIST
1792     $HAVE_LIST_CMDLINE
1793     $THREADS_LIST
1794     asm
1795     cross_compile
1796     debug
1797     extra_warnings
1798     logging
1799     lto
1800     optimizations
1801     rpath
1802     stripping
1803 "
1804
1805 PATHS_LIST="
1806     bindir
1807     datadir
1808     docdir
1809     incdir
1810     libdir
1811     mandir
1812     prefix
1813     shlibdir
1814 "
1815
1816 CMDLINE_SET="
1817     $PATHS_LIST
1818     ar
1819     arch
1820     as
1821     assert_level
1822     build_suffix
1823     cc
1824     cpu
1825     cross_prefix
1826     cxx
1827     dep_cc
1828     extra_version
1829     host_cc
1830     host_cflags
1831     host_ld
1832     host_ldflags
1833     host_libs
1834     host_os
1835     install
1836     ld
1837     logfile
1838     malloc_prefix
1839     nm
1840     optflags
1841     pkg_config
1842     pkg_config_flags
1843     progs_suffix
1844     random_seed
1845     samples
1846     strip
1847     sysinclude
1848     sysroot
1849     target_exec
1850     target_os
1851     target_path
1852     target_samples
1853     tempprefix
1854     toolchain
1855     valgrind
1856     yasmexe
1857 "
1858
1859 CMDLINE_APPEND="
1860     extra_cflags
1861     extra_cxxflags
1862     host_cppflags
1863 "
1864
1865 # code dependency declarations
1866
1867 # architecture extensions
1868
1869 armv5te_deps="arm"
1870 armv6_deps="arm"
1871 armv6t2_deps="arm"
1872 neon_deps_any="aarch64 arm"
1873 vfp_deps_any="aarch64 arm"
1874 vfpv3_deps="vfp"
1875
1876 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1877
1878 mipsfpu_deps="mips"
1879 mips32r2_deps="mips"
1880 mipsdspr1_deps="mips"
1881 mipsdspr2_deps="mips"
1882
1883 altivec_deps="ppc"
1884 ppc4xx_deps="ppc"
1885
1886 cpunop_deps="i686"
1887 x86_64_select="i686"
1888 x86_64_suggest="fast_cmov"
1889
1890 amd3dnow_deps="mmx"
1891 amd3dnowext_deps="amd3dnow"
1892 i686_deps="x86"
1893 mmx_deps="x86"
1894 mmxext_deps="mmx"
1895 sse_deps="mmxext"
1896 sse2_deps="sse"
1897 sse3_deps="sse2"
1898 ssse3_deps="sse3"
1899 sse4_deps="ssse3"
1900 sse42_deps="sse4"
1901 avx_deps="sse42"
1902 xop_deps="avx"
1903 fma3_deps="avx"
1904 fma4_deps="avx"
1905 avx2_deps="avx"
1906
1907 mmx_external_deps="yasm"
1908 mmx_inline_deps="inline_asm"
1909 mmx_suggest="mmx_external mmx_inline"
1910
1911 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1912     eval dep=\$${ext}_deps
1913     eval ${ext}_external_deps='"${dep}_external"'
1914     eval ${ext}_inline_deps='"${dep}_inline"'
1915     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1916 done
1917
1918 aligned_stack_if_any="aarch64 ppc x86"
1919 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1920 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1921 fast_unaligned_if_any="aarch64 ppc x86"
1922
1923 need_memalign="altivec neon sse"
1924
1925 # system capabilities
1926 log2_deps="!libc_msvcrt"
1927
1928 symver_if_any="symver_asm_label symver_gnu_asm"
1929
1930 # threading support
1931 atomics_gcc_if="sync_val_compare_and_swap"
1932 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1933 atomics_win32_if="MemoryBarrier"
1934 atomics_native_if_any="$ATOMICS_LIST"
1935 w32threads_deps="atomics_native"
1936 threads_if_any="$THREADS_LIST"
1937
1938 # subsystems
1939 dct_select="rdft"
1940 error_resilience_select="dsputil"
1941 frame_thread_encoder_deps="encoders threads"
1942 mdct_select="fft"
1943 rdft_select="fft"
1944 mpegaudio_select="mpegaudiodsp"
1945 mpegaudiodsp_select="dct"
1946 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1947 mpegvideoenc_select="dsputil mpegvideo"
1948
1949 # decoders / encoders
1950 aac_decoder_select="mdct sinewin"
1951 aac_encoder_select="audio_frame_queue mdct sinewin"
1952 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1953 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1954 ac3_encoder_select="mdct ac3dsp dsputil"
1955 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1956 aic_decoder_select="dsputil golomb"
1957 alac_encoder_select="lpc"
1958 als_decoder_select="dsputil"
1959 amrnb_decoder_select="lsp"
1960 amrwb_decoder_select="lsp"
1961 amv_decoder_select="sp5x_decoder exif"
1962 amv_encoder_select="aandcttables"
1963 ape_decoder_select="dsputil"
1964 asv1_decoder_select="dsputil"
1965 asv1_encoder_select="dsputil"
1966 asv2_decoder_select="dsputil"
1967 asv2_encoder_select="dsputil"
1968 atrac1_decoder_select="mdct sinewin"
1969 atrac3_decoder_select="mdct"
1970 atrac3p_decoder_select="mdct sinewin"
1971 avrn_decoder_select="exif"
1972 bink_decoder_select="dsputil hpeldsp"
1973 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1974 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1975 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1976 cllc_decoder_select="dsputil"
1977 comfortnoise_encoder_select="lpc"
1978 cook_decoder_select="dsputil mdct sinewin"
1979 cscd_decoder_select="lzo"
1980 cscd_decoder_suggest="zlib"
1981 dca_decoder_select="mdct"
1982 dirac_decoder_select="dsputil dwt golomb videodsp"
1983 dnxhd_decoder_select="dsputil"
1984 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1985 dvvideo_decoder_select="dsputil"
1986 dvvideo_encoder_select="dsputil"
1987 dxa_decoder_select="zlib"
1988 eac3_decoder_select="ac3_decoder"
1989 eac3_encoder_select="ac3_encoder"
1990 eamad_decoder_select="aandcttables dsputil mpegvideo"
1991 eatgq_decoder_select="aandcttables"
1992 eatqi_decoder_select="aandcttables dsputil error_resilience mpegvideo"
1993 exr_decoder_select="zlib"
1994 ffv1_decoder_select="golomb rangecoder"
1995 ffv1_encoder_select="rangecoder"
1996 ffvhuff_decoder_select="huffyuv_decoder"
1997 ffvhuff_encoder_select="huffyuv_encoder"
1998 fic_decoder_select="dsputil golomb"
1999 flac_decoder_select="golomb"
2000 flac_encoder_select="dsputil golomb lpc"
2001 flashsv_decoder_select="zlib"
2002 flashsv_encoder_select="zlib"
2003 flashsv2_encoder_select="zlib"
2004 flashsv2_decoder_select="zlib"
2005 flv_decoder_select="h263_decoder"
2006 flv_encoder_select="h263_encoder"
2007 fourxm_decoder_select="dsputil"
2008 fraps_decoder_select="dsputil huffman"
2009 g2m_decoder_select="dsputil zlib"
2010 g729_decoder_select="dsputil"
2011 h261_decoder_select="error_resilience mpegvideo"
2012 h261_encoder_select="aandcttables mpegvideoenc"
2013 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
2014 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2015 h263i_decoder_select="h263_decoder"
2016 h263p_encoder_select="h263_encoder"
2017 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2018 h264_decoder_suggest="error_resilience"
2019 hevc_decoder_select="cabac dsputil golomb videodsp"
2020 huffyuv_decoder_select="dsputil llviddsp"
2021 huffyuv_encoder_select="dsputil huffman llviddsp"
2022 iac_decoder_select="imc_decoder"
2023 imc_decoder_select="dsputil fft mdct sinewin"
2024 indeo3_decoder_select="hpeldsp"
2025 interplay_video_decoder_select="hpeldsp"
2026 jpegls_decoder_select="golomb mjpeg_decoder"
2027 jpegls_encoder_select="golomb"
2028 jv_decoder_select="dsputil"
2029 lagarith_decoder_select="dsputil"
2030 ljpeg_encoder_select="aandcttables mpegvideoenc"
2031 loco_decoder_select="golomb"
2032 mdec_decoder_select="dsputil error_resilience mpegvideo"
2033 metasound_decoder_select="lsp mdct sinewin"
2034 mimic_decoder_select="dsputil hpeldsp"
2035 mjpeg_decoder_select="dsputil hpeldsp exif"
2036 mjpeg_encoder_select="aandcttables mpegvideoenc"
2037 mjpegb_decoder_select="mjpeg_decoder"
2038 mlp_decoder_select="mlp_parser"
2039 motionpixels_decoder_select="dsputil"
2040 mp1_decoder_select="mpegaudio"
2041 mp1float_decoder_select="mpegaudio"
2042 mp2_decoder_select="mpegaudio"
2043 mp2float_decoder_select="mpegaudio"
2044 mp3_decoder_select="mpegaudio"
2045 mp3adu_decoder_select="mpegaudio"
2046 mp3adufloat_decoder_select="mpegaudio"
2047 mp3float_decoder_select="mpegaudio"
2048 mp3on4_decoder_select="mpegaudio"
2049 mp3on4float_decoder_select="mpegaudio"
2050 mpc7_decoder_select="dsputil mpegaudiodsp"
2051 mpc8_decoder_select="mpegaudiodsp"
2052 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2053 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2054 mpeg1video_decoder_select="error_resilience mpegvideo"
2055 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2056 mpeg2video_decoder_select="error_resilience mpegvideo"
2057 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2058 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2059 mpeg4_encoder_select="h263_encoder"
2060 msmpeg4v1_decoder_select="h263_decoder"
2061 msmpeg4v2_decoder_select="h263_decoder"
2062 msmpeg4v2_encoder_select="h263_encoder"
2063 msmpeg4v3_decoder_select="h263_decoder"
2064 msmpeg4v3_encoder_select="h263_encoder"
2065 mss2_decoder_select="error_resilience vc1_decoder"
2066 mxpeg_decoder_select="mjpeg_decoder"
2067 nellymoser_decoder_select="mdct sinewin"
2068 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2069 nuv_decoder_select="dsputil lzo"
2070 png_decoder_select="zlib"
2071 png_encoder_select="dsputil zlib"
2072 prores_decoder_select="dsputil"
2073 prores_encoder_select="dsputil"
2074 qcelp_decoder_select="lsp"
2075 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2076 ra_144_encoder_select="audio_frame_queue lpc"
2077 ralf_decoder_select="golomb"
2078 rtjpeg_decoder_select="dsputil"
2079 rv10_decoder_select="error_resilience h263_decoder h263dsp"
2080 rv10_encoder_select="h263_encoder"
2081 rv20_decoder_select="error_resilience h263_decoder h263dsp"
2082 rv20_encoder_select="h263_encoder"
2083 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2084 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
2085 shorten_decoder_select="golomb"
2086 sipr_decoder_select="lsp"
2087 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
2088 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
2089 sonic_decoder_select="golomb rangecoder"
2090 sonic_encoder_select="golomb rangecoder"
2091 sonic_ls_encoder_select="golomb"
2092 sp5x_decoder_select="mjpeg_decoder"
2093 svq1_decoder_select="hpeldsp"
2094 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
2095 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2096 svq3_decoder_suggest="zlib"
2097 tak_decoder_select="dsputil"
2098 theora_decoder_select="vp3_decoder"
2099 thp_decoder_select="mjpeg_decoder"
2100 tiff_decoder_suggest="zlib"
2101 tiff_encoder_suggest="zlib"
2102 truehd_decoder_select="mlp_parser"
2103 truemotion2_decoder_select="dsputil"
2104 truespeech_decoder_select="dsputil"
2105 tscc_decoder_select="zlib"
2106 twinvq_decoder_select="mdct lsp sinewin"
2107 utvideo_decoder_select="dsputil"
2108 utvideo_encoder_select="dsputil huffman"
2109 vble_decoder_select="dsputil"
2110 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
2111 vc1image_decoder_select="vc1_decoder"
2112 vorbis_decoder_select="mdct"
2113 vorbis_encoder_select="mdct"
2114 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2115 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2116 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2117 vp6a_decoder_select="vp6_decoder"
2118 vp6f_decoder_select="vp6_decoder"
2119 vp7_decoder_select="h264pred videodsp"
2120 vp8_decoder_select="h264pred videodsp"
2121 vp9_decoder_select="videodsp"
2122 webp_decoder_select="vp8_decoder"
2123 wmapro_decoder_select="mdct sinewin"
2124 wmav1_decoder_select="mdct sinewin"
2125 wmav1_encoder_select="mdct sinewin"
2126 wmav2_decoder_select="mdct sinewin"
2127 wmav2_encoder_select="mdct sinewin"
2128 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2129 wmv1_decoder_select="h263_decoder"
2130 wmv1_encoder_select="h263_encoder"
2131 wmv2_decoder_select="h263_decoder intrax8 videodsp"
2132 wmv2_encoder_select="h263_encoder"
2133 wmv3_decoder_select="vc1_decoder"
2134 wmv3image_decoder_select="wmv3_decoder"
2135 zerocodec_decoder_select="zlib"
2136 zlib_decoder_select="zlib"
2137 zlib_encoder_select="zlib"
2138 zmbv_decoder_select="zlib"
2139 zmbv_encoder_select="zlib"
2140
2141 # hardware accelerators
2142 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2143 dxva2_deps="dxva2api_h"
2144 vaapi_deps="va_va_h"
2145 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2146 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2147 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2148 xvmc_deps="X11_extensions_XvMClib_h"
2149
2150 h263_vaapi_hwaccel_deps="vaapi"
2151 h263_vaapi_hwaccel_select="h263_decoder"
2152 h263_vdpau_hwaccel_deps="vdpau"
2153 h263_vdpau_hwaccel_select="h263_decoder"
2154 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2155 h264_dxva2_hwaccel_deps="dxva2"
2156 h264_dxva2_hwaccel_select="h264_decoder"
2157 h264_vaapi_hwaccel_deps="vaapi"
2158 h264_vaapi_hwaccel_select="h264_decoder"
2159 h264_vda_decoder_deps="vda"
2160 h264_vda_decoder_select="h264_decoder"
2161 h264_vda_hwaccel_deps="vda"
2162 h264_vda_hwaccel_select="h264_decoder"
2163 h264_vdpau_decoder_deps="vdpau"
2164 h264_vdpau_decoder_select="h264_decoder"
2165 h264_vdpau_hwaccel_deps="vdpau"
2166 h264_vdpau_hwaccel_select="h264_decoder"
2167 mpeg_vdpau_decoder_deps="vdpau"
2168 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2169 mpeg_xvmc_hwaccel_deps="xvmc"
2170 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2171 mpeg1_vdpau_decoder_deps="vdpau"
2172 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2173 mpeg1_vdpau_hwaccel_deps="vdpau"
2174 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2175 mpeg1_xvmc_hwaccel_deps="xvmc"
2176 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2177 mpeg2_crystalhd_decoder_select="crystalhd"
2178 mpeg2_dxva2_hwaccel_deps="dxva2"
2179 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2180 mpeg2_vaapi_hwaccel_deps="vaapi"
2181 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2182 mpeg2_vdpau_hwaccel_deps="vdpau"
2183 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2184 mpeg2_xvmc_hwaccel_deps="xvmc"
2185 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2186 mpeg4_crystalhd_decoder_select="crystalhd"
2187 mpeg4_vaapi_hwaccel_deps="vaapi"
2188 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2189 mpeg4_vdpau_decoder_deps="vdpau"
2190 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2191 mpeg4_vdpau_hwaccel_deps="vdpau"
2192 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2193 msmpeg4_crystalhd_decoder_select="crystalhd"
2194 vc1_crystalhd_decoder_select="crystalhd"
2195 vc1_dxva2_hwaccel_deps="dxva2"
2196 vc1_dxva2_hwaccel_select="vc1_decoder"
2197 vc1_vaapi_hwaccel_deps="vaapi"
2198 vc1_vaapi_hwaccel_select="vc1_decoder"
2199 vc1_vdpau_decoder_deps="vdpau"
2200 vc1_vdpau_decoder_select="vc1_decoder"
2201 vc1_vdpau_hwaccel_deps="vdpau"
2202 vc1_vdpau_hwaccel_select="vc1_decoder"
2203 wmv3_crystalhd_decoder_select="crystalhd"
2204 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2205 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2206 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2207 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2208
2209 # parsers
2210 h264_parser_select="h264_decoder"
2211 hevc_parser_select="hevc_decoder"
2212 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
2213 mpegvideo_parser_select="error_resilience mpegvideo"
2214 vc1_parser_select="mpegvideo"
2215
2216 # external libraries
2217 libaacplus_encoder_deps="libaacplus"
2218 libcelt_decoder_deps="libcelt"
2219 libfaac_encoder_deps="libfaac"
2220 libfaac_encoder_select="audio_frame_queue"
2221 libfdk_aac_decoder_deps="libfdk_aac"
2222 libfdk_aac_encoder_deps="libfdk_aac"
2223 libfdk_aac_encoder_select="audio_frame_queue"
2224 libgme_demuxer_deps="libgme"
2225 libgsm_decoder_deps="libgsm"
2226 libgsm_encoder_deps="libgsm"
2227 libgsm_ms_decoder_deps="libgsm"
2228 libgsm_ms_encoder_deps="libgsm"
2229 libilbc_decoder_deps="libilbc"
2230 libilbc_encoder_deps="libilbc"
2231 libmodplug_demuxer_deps="libmodplug"
2232 libmp3lame_encoder_deps="libmp3lame"
2233 libmp3lame_encoder_select="audio_frame_queue"
2234 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2235 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2236 libopencore_amrnb_encoder_select="audio_frame_queue"
2237 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2238 libopenjpeg_decoder_deps="libopenjpeg"
2239 libopenjpeg_encoder_deps="libopenjpeg"
2240 libopus_decoder_deps="libopus"
2241 libopus_encoder_deps="libopus"
2242 libopus_encoder_select="audio_frame_queue"
2243 libquvi_demuxer_deps="libquvi"
2244 libschroedinger_decoder_deps="libschroedinger"
2245 libschroedinger_encoder_deps="libschroedinger"
2246 libshine_encoder_deps="libshine"
2247 libshine_encoder_select="audio_frame_queue"
2248 libspeex_decoder_deps="libspeex"
2249 libspeex_encoder_deps="libspeex"
2250 libspeex_encoder_select="audio_frame_queue"
2251 libstagefright_h264_decoder_deps="libstagefright_h264"
2252 libtheora_encoder_deps="libtheora"
2253 libtwolame_encoder_deps="libtwolame"
2254 libvo_aacenc_encoder_deps="libvo_aacenc"
2255 libvo_aacenc_encoder_select="audio_frame_queue"
2256 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2257 libvorbis_decoder_deps="libvorbis"
2258 libvorbis_encoder_deps="libvorbis"
2259 libvorbis_encoder_select="audio_frame_queue"
2260 libvpx_vp8_decoder_deps="libvpx"
2261 libvpx_vp8_encoder_deps="libvpx"
2262 libvpx_vp9_decoder_deps="libvpx"
2263 libvpx_vp9_encoder_deps="libvpx"
2264 libwavpack_encoder_deps="libwavpack"
2265 libwebp_encoder_deps="libwebp"
2266 libx264_encoder_deps="libx264"
2267 libx264rgb_encoder_deps="libx264"
2268 libx265_encoder_deps="libx265"
2269 libxavs_encoder_deps="libxavs"
2270 libxvid_encoder_deps="libxvid"
2271 libutvideo_decoder_deps="libutvideo"
2272 libutvideo_encoder_deps="libutvideo"
2273 libzvbi_teletext_decoder_deps="libzvbi"
2274
2275 # demuxers / muxers
2276 ac3_demuxer_select="ac3_parser"
2277 asf_demuxer_select="riffdec"
2278 asf_muxer_select="riffenc"
2279 asf_stream_muxer_select="asf_muxer"
2280 avi_demuxer_select="riffdec"
2281 avi_muxer_select="riffenc"
2282 avisynth_demuxer_deps="avisynth"
2283 avisynth_demuxer_select="riffdec"
2284 caf_demuxer_select="riffdec"
2285 dirac_demuxer_select="dirac_parser"
2286 dts_demuxer_select="dca_parser"
2287 dtshd_demuxer_select="dca_parser"
2288 dxa_demuxer_select="riffdec"
2289 eac3_demuxer_select="ac3_parser"
2290 f4v_muxer_select="mov_muxer"
2291 flac_demuxer_select="flac_parser"
2292 hds_muxer_select="flv_muxer"
2293 hls_muxer_select="mpegts_muxer"
2294 ipod_muxer_select="mov_muxer"
2295 ismv_muxer_select="mov_muxer"
2296 libnut_demuxer_deps="libnut"
2297 libnut_muxer_deps="libnut"
2298 matroska_audio_muxer_select="matroska_muxer"
2299 matroska_demuxer_select="riffdec"
2300 matroska_demuxer_suggest="bzlib lzo zlib"
2301 matroska_muxer_select="riffenc"
2302 mmf_muxer_select="riffenc"
2303 mov_demuxer_select="riffdec"
2304 mov_demuxer_suggest="zlib"
2305 mov_muxer_select="riffenc rtpenc_chain"
2306 mp3_demuxer_select="mpegaudio_parser"
2307 mp4_muxer_select="mov_muxer"
2308 mpegts_muxer_select="adts_muxer latm_muxer"
2309 mpegtsraw_demuxer_select="mpegts_demuxer"
2310 mxf_d10_muxer_select="mxf_muxer"
2311 nut_muxer_select="riffenc"
2312 nuv_demuxer_select="riffdec"
2313 ogg_demuxer_select="golomb"
2314 psp_muxer_select="mov_muxer"
2315 rtp_demuxer_select="sdp_demuxer"
2316 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2317 rtsp_demuxer_select="http_protocol rtpdec"
2318 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2319 sap_demuxer_select="sdp_demuxer"
2320 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2321 sdp_demuxer_select="rtpdec"
2322 smoothstreaming_muxer_select="ismv_muxer"
2323 spdif_muxer_select="aac_parser"
2324 tak_demuxer_select="tak_parser"
2325 tg2_muxer_select="mov_muxer"
2326 tgp_muxer_select="mov_muxer"
2327 vobsub_demuxer_select="mpegps_demuxer"
2328 w64_demuxer_select="wav_demuxer"
2329 w64_muxer_select="wav_muxer"
2330 wav_demuxer_select="riffdec"
2331 wav_muxer_select="riffenc"
2332 webm_muxer_select="riffenc"
2333 wtv_demuxer_select="riffdec"
2334 wtv_muxer_select="riffenc"
2335 xmv_demuxer_select="riffdec"
2336 xwma_demuxer_select="riffdec"
2337
2338 # indevs / outdevs
2339 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2340 alsa_outdev_deps="alsa_asoundlib_h"
2341 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2342 caca_outdev_deps="libcaca"
2343 decklink_outdev_deps="decklink pthreads"
2344 decklink_outdev_extralibs="-lstdc++"
2345 dshow_indev_deps="IBaseFilter"
2346 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2347 dv1394_indev_deps="dv1394"
2348 dv1394_indev_select="dv_demuxer"
2349 fbdev_indev_deps="linux_fb_h"
2350 fbdev_outdev_deps="linux_fb_h"
2351 iec61883_indev_deps="libiec61883"
2352 jack_indev_deps="jack_jack_h sem_timedwait"
2353 lavfi_indev_deps="avfilter"
2354 libcdio_indev_deps="libcdio"
2355 libdc1394_indev_deps="libdc1394"
2356 libv4l2_indev_deps="libv4l2"
2357 openal_indev_deps="openal"
2358 opengl_outdev_deps="opengl"
2359 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2360 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2361 pulse_indev_deps="libpulse"
2362 pulse_outdev_deps="libpulse"
2363 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2364 qtkit_indev_select="qtkit"
2365 sdl_outdev_deps="sdl"
2366 sndio_indev_deps="sndio_h"
2367 sndio_outdev_deps="sndio_h"
2368 v4l_indev_deps="linux_videodev_h"
2369 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2370 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2371 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2372 vfwcap_indev_extralibs="-lavicap32"
2373 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2374 xv_outdev_extralibs="-lXv -lX11 -lXext"
2375 x11grab_indev_deps="x11grab"
2376
2377 # protocols
2378 bluray_protocol_deps="libbluray"
2379 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2380 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2381 ffrtmpcrypt_protocol_select="tcp_protocol"
2382 ffrtmphttp_protocol_deps="!librtmp_protocol"
2383 ffrtmphttp_protocol_select="http_protocol"
2384 ftp_protocol_select="tcp_protocol"
2385 gopher_protocol_select="network"
2386 http_protocol_select="tcp_protocol"
2387 httpproxy_protocol_select="tcp_protocol"
2388 https_protocol_select="tls_protocol"
2389 librtmp_protocol_deps="librtmp"
2390 librtmpe_protocol_deps="librtmp"
2391 librtmps_protocol_deps="librtmp"
2392 librtmpt_protocol_deps="librtmp"
2393 librtmpte_protocol_deps="librtmp"
2394 libssh_protocol_deps="libssh"
2395 mmsh_protocol_select="http_protocol"
2396 mmst_protocol_select="network"
2397 rtmp_protocol_deps="!librtmp_protocol"
2398 rtmp_protocol_select="tcp_protocol"
2399 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2400 rtmps_protocol_deps="!librtmp_protocol"
2401 rtmps_protocol_select="tls_protocol"
2402 rtmpt_protocol_select="ffrtmphttp_protocol"
2403 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2404 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2405 rtp_protocol_select="udp_protocol"
2406 sctp_protocol_deps="struct_sctp_event_subscribe"
2407 sctp_protocol_select="network"
2408 srtp_protocol_select="rtp_protocol"
2409 tcp_protocol_select="network"
2410 tls_protocol_deps_any="openssl gnutls"
2411 tls_protocol_select="tcp_protocol"
2412 udp_protocol_select="network"
2413 unix_protocol_deps="sys_un_h"
2414 unix_protocol_select="network"
2415
2416 # filters
2417 aconvert_filter_deps="swresample"
2418 amovie_filter_deps="avcodec avformat"
2419 aresample_filter_deps="swresample"
2420 ass_filter_deps="libass"
2421 asyncts_filter_deps="avresample"
2422 atempo_filter_deps="avcodec"
2423 atempo_filter_select="rdft"
2424 azmq_filter_deps="libzmq"
2425 blackframe_filter_deps="gpl"
2426 boxblur_filter_deps="gpl"
2427 colormatrix_filter_deps="gpl"
2428 cropdetect_filter_deps="gpl"
2429 dctdnoiz_filter_deps="avcodec"
2430 dctdnoiz_filter_select="dct"
2431 delogo_filter_deps="gpl"
2432 deshake_filter_deps="avcodec"
2433 deshake_filter_select="dsputil"
2434 drawtext_filter_deps="libfreetype"
2435 ebur128_filter_deps="gpl"
2436 flite_filter_deps="libflite"
2437 frei0r_filter_deps="frei0r dlopen"
2438 frei0r_filter_extralibs='$ldl'
2439 frei0r_src_filter_deps="frei0r dlopen"
2440 frei0r_src_filter_extralibs='$ldl'
2441 geq_filter_deps="gpl"
2442 histeq_filter_deps="gpl"
2443 hqdn3d_filter_deps="gpl"
2444 interlace_filter_deps="gpl"
2445 kerndeint_filter_deps="gpl"
2446 ladspa_filter_deps="ladspa dlopen"
2447 mcdeint_filter_deps="avcodec gpl"
2448 movie_filter_deps="avcodec avformat"
2449 mp_filter_deps="gpl avcodec swscale inline_asm"
2450 mpdecimate_filter_deps="gpl avcodec"
2451 mptestsrc_filter_deps="gpl"
2452 negate_filter_deps="lut_filter"
2453 perspective_filter_deps="gpl"
2454 ocv_filter_deps="libopencv"
2455 owdenoise_filter_deps="gpl"
2456 pan_filter_deps="swresample"
2457 phase_filter_deps="gpl"
2458 pp_filter_deps="gpl postproc"
2459 pullup_filter_deps="gpl"
2460 removelogo_filter_deps="avcodec avformat swscale"
2461 resample_filter_deps="avresample"
2462 sab_filter_deps="gpl swscale"
2463 scale_filter_deps="swscale"
2464 smartblur_filter_deps="gpl swscale"
2465 showspectrum_filter_deps="avcodec"
2466 showspectrum_filter_select="rdft"
2467 spp_filter_deps="gpl avcodec"
2468 spp_filter_select="fft"
2469 stereo3d_filter_deps="gpl"
2470 subtitles_filter_deps="avformat avcodec libass"
2471 super2xsai_filter_deps="gpl"
2472 tinterlace_filter_deps="gpl"
2473 vidstabdetect_filter_deps="libvidstab"
2474 vidstabtransform_filter_deps="libvidstab"
2475 pixfmts_super2xsai_test_deps="super2xsai_filter"
2476 tinterlace_merge_test_deps="tinterlace_filter"
2477 tinterlace_pad_test_deps="tinterlace_filter"
2478 zmq_filter_deps="libzmq"
2479
2480 # examples
2481 avio_reading="avformat avcodec avutil"
2482 avcodec_example_deps="avcodec avutil"
2483 demuxing_decoding_example_deps="avcodec avformat avutil"
2484 filter_audio_example_deps="avfilter avutil"
2485 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2486 filtering_video_example_deps="avfilter avcodec avformat avutil"
2487 metadata_example_deps="avformat avutil"
2488 muxing_example_deps="avcodec avformat avutil swscale"
2489 remuxing_example_deps="avcodec avformat avutil"
2490 resampling_audio_example_deps="avutil swresample"
2491 scaling_video_example_deps="avutil swscale"
2492 transcode_aac_example_deps="avcodec avformat swresample"
2493 transcoding_example_deps="avfilter avcodec avformat avutil"
2494
2495 # libraries
2496 avcodec_deps="avutil"
2497 avdevice_deps="avutil avcodec avformat"
2498 avfilter_deps="avutil"
2499 avformat_deps="avutil avcodec"
2500 avresample_deps="avutil"
2501 postproc_deps="avutil gpl"
2502 swscale_deps="avutil"
2503
2504 # programs
2505 ffmpeg_deps="avcodec avfilter avformat swresample"
2506 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2507                null_filter
2508                setpts_filter trim_filter"
2509 ffplay_deps="avcodec avformat swscale swresample sdl"
2510 ffplay_libs='$sdl_libs'
2511 ffplay_select="rdft crop_filter"
2512 ffprobe_deps="avcodec avformat"
2513 ffserver_deps="avformat fork sarestart"
2514 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2515
2516 # documentation
2517 podpages_deps="perl"
2518 manpages_deps="perl pod2man"
2519 htmlpages_deps="perl texi2html"
2520 txtpages_deps="perl makeinfo"
2521 doc_deps_any="manpages htmlpages podpages txtpages"
2522
2523 # default parameters
2524
2525 logfile="config.log"
2526
2527 # installation paths
2528 prefix_default="/usr/local"
2529 bindir_default='${prefix}/bin'
2530 datadir_default='${prefix}/share/ffmpeg'
2531 docdir_default='${prefix}/share/doc/ffmpeg'
2532 incdir_default='${prefix}/include'
2533 libdir_default='${prefix}/lib'
2534 mandir_default='${prefix}/share/man'
2535 shlibdir_default="$libdir_default"
2536
2537 # toolchain
2538 ar_default="ar"
2539 cc_default="gcc"
2540 cxx_default="g++"
2541 host_cc_default="gcc"
2542 cp_f="cp -f"
2543 install="install"
2544 ln_s="ln -s -f"
2545 nm_default="nm -g"
2546 objformat="elf"
2547 pkg_config_default=pkg-config
2548 ranlib="ranlib"
2549 strip_default="strip"
2550 yasmexe_default="yasm"
2551 windres_default="windres"
2552
2553 nogas=":"
2554
2555 # OS
2556 target_os_default=$(tolower $(uname -s))
2557 host_os=$target_os_default
2558
2559 # machine
2560 if test "$target_os_default" = aix; then
2561     arch_default=$(uname -p)
2562 else
2563     arch_default=$(uname -m)
2564 fi
2565 cpu="generic"
2566
2567 # configurable options
2568 enable $PROGRAM_LIST
2569 enable $DOCUMENT_LIST
2570 enable $EXAMPLE_LIST
2571 enable $(filter_out avresample $LIBRARY_LIST)
2572 enable stripping
2573
2574 enable asm
2575 enable debug
2576 enable doc
2577 enable optimizations
2578 enable runtime_cpudetect
2579 enable safe_bitstream_reader
2580 enable static
2581 enable swscale_alpha
2582
2583 # Enable hwaccels by default.
2584 enable dxva2 vaapi vda vdpau xvmc
2585 enable xlib
2586
2587 # build settings
2588 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2589 LIBPREF="lib"
2590 LIBSUF=".a"
2591 FULLNAME='$(NAME)$(BUILDSUF)'
2592 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2593 SLIBPREF="lib"
2594 SLIBSUF=".so"
2595 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2596 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2597 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2598 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2599 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2600 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2601
2602 asflags_filter=echo
2603 cflags_filter=echo
2604 ldflags_filter=echo
2605
2606 AS_C='-c'
2607 AS_O='-o $@'
2608 CC_C='-c'
2609 CC_E='-E -o $@'
2610 CC_O='-o $@'
2611 CXX_C='-c'
2612 CXX_O='-o $@'
2613 LD_O='-o $@'
2614 LD_LIB='-l%'
2615 LD_PATH='-L'
2616 HOSTCC_C='-c'
2617 HOSTCC_E='-E -o $@'
2618 HOSTCC_O='-o $@'
2619 HOSTLD_O='-o $@'
2620
2621 host_libs='-lm'
2622 host_cflags_filter=echo
2623 host_ldflags_filter=echo
2624
2625 target_path='$(CURDIR)'
2626
2627 # since the object filename is not given with the -MM flag, the compiler
2628 # is only able to print the basename, and we must add the path ourselves
2629 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2630 DEPFLAGS='-MM'
2631
2632 # find source path
2633 if test -f configure; then
2634     source_path=.
2635 else
2636     source_path=$(cd $(dirname "$0"); pwd)
2637     echo "$source_path" | grep -q '[[:blank:]]' &&
2638         die "Out of tree builds are impossible with whitespace in source path."
2639     test -e "$source_path/config.h" &&
2640         die "Out of tree builds are impossible with config.h in source dir."
2641 fi
2642
2643 for v in "$@"; do
2644     r=${v#*=}
2645     l=${v%"$r"}
2646     r=$(sh_quote "$r")
2647     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2648 done
2649
2650 find_things(){
2651     thing=$1
2652     pattern=$2
2653     file=$source_path/$3
2654     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2655 }
2656
2657 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2658 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2659 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2660 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2661 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2662 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2663 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2664 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2665 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2666 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2667 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2668
2669 ALL_COMPONENTS="
2670     $BSF_LIST
2671     $DECODER_LIST
2672     $DEMUXER_LIST
2673     $ENCODER_LIST
2674     $FILTER_LIST
2675     $HWACCEL_LIST
2676     $INDEV_LIST
2677     $MUXER_LIST
2678     $OUTDEV_LIST
2679     $PARSER_LIST
2680     $PROTOCOL_LIST
2681 "
2682
2683 for n in $COMPONENT_LIST; do
2684     v=$(toupper ${n%s})_LIST
2685     eval enable \$$v
2686     eval ${n}_if_any="\$$v"
2687 done
2688
2689 enable $ARCH_EXT_LIST
2690
2691 die_unknown(){
2692     echo "Unknown option \"$1\"."
2693     echo "See $0 --help for available options."
2694     exit 1
2695 }
2696
2697 print_3_columns() {
2698     cat | tr ' ' '\n' | sort | pr -r -3 -t
2699 }
2700
2701 show_list() {
2702     suffix=_$1
2703     shift
2704     echo $* | sed s/$suffix//g | print_3_columns
2705     exit 0
2706 }
2707
2708 rand_list(){
2709     IFS=', '
2710     set -- $*
2711     unset IFS
2712     for thing; do
2713         comp=${thing%:*}
2714         prob=${thing#$comp}
2715         prob=${prob#:}
2716         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2717         echo "prob ${prob:-0.5}"
2718         printf '%s\n' $comp
2719     done
2720 }
2721
2722 do_random(){
2723     action=$1
2724     shift
2725     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2726     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2727 }
2728
2729 for opt do
2730     optval="${opt#*=}"
2731     case "$opt" in
2732         --extra-ldflags=*)
2733             add_ldflags $optval
2734         ;;
2735         --extra-libs=*)
2736             add_extralibs $optval
2737         ;;
2738         --disable-devices)
2739             disable $INDEV_LIST $OUTDEV_LIST
2740         ;;
2741         --enable-debug=*)
2742             debuglevel="$optval"
2743         ;;
2744         --disable-programs)
2745             disable $PROGRAM_LIST
2746         ;;
2747         --disable-everything)
2748             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2749         ;;
2750         --disable-all)
2751             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2752             disable $LIBRARY_LIST $PROGRAM_LIST doc
2753         ;;
2754         --enable-random|--disable-random)
2755             action=${opt%%-random}
2756             do_random ${action#--} $COMPONENT_LIST
2757         ;;
2758         --enable-random=*|--disable-random=*)
2759             action=${opt%%-random=*}
2760             do_random ${action#--} $optval
2761         ;;
2762         --enable-*=*|--disable-*=*)
2763             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2764             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2765             eval list=\$$(toupper $thing)_LIST
2766             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2767             list=$(filter "$name" $list)
2768             [ "$list" = "" ] && warn "Option $opt did not match anything"
2769             $action $list
2770         ;;
2771         --enable-?*|--disable-?*)
2772             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2773             if is_in $option $COMPONENT_LIST; then
2774                 test $action = disable && action=unset
2775                 eval $action \$$(toupper ${option%s})_LIST
2776             elif is_in $option $CMDLINE_SELECT; then
2777                 $action $option
2778             else
2779                 die_unknown $opt
2780             fi
2781         ;;
2782         --list-*)
2783             NAME="${opt#--list-}"
2784             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2785             NAME=${NAME%s}
2786             eval show_list $NAME \$$(toupper $NAME)_LIST
2787         ;;
2788         --help|-h) show_help
2789         ;;
2790         --fatal-warnings) enable fatal_warnings
2791         ;;
2792         *)
2793             optname="${opt%%=*}"
2794             optname="${optname#--}"
2795             optname=$(echo "$optname" | sed 's/-/_/g')
2796             if is_in $optname $CMDLINE_SET; then
2797                 eval $optname='$optval'
2798             elif is_in $optname $CMDLINE_APPEND; then
2799                 append $optname "$optval"
2800             else
2801                 die_unknown $opt
2802             fi
2803         ;;
2804     esac
2805 done
2806
2807 disabled logging && logfile=/dev/null
2808
2809 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2810 set >> $logfile
2811
2812 test -n "$cross_prefix" && enable cross_compile
2813
2814 if enabled cross_compile; then
2815     test -n "$arch" && test -n "$target_os" ||
2816         die "Must specify target arch and OS when cross-compiling"
2817 fi
2818
2819 ar_default="${cross_prefix}${ar_default}"
2820 cc_default="${cross_prefix}${cc_default}"
2821 cxx_default="${cross_prefix}${cxx_default}"
2822 nm_default="${cross_prefix}${nm_default}"
2823 pkg_config_default="${cross_prefix}${pkg_config_default}"
2824 ranlib="${cross_prefix}${ranlib}"
2825 strip_default="${cross_prefix}${strip_default}"
2826 windres_default="${cross_prefix}${windres_default}"
2827
2828 sysinclude_default="${sysroot}/usr/include"
2829
2830 test -n "$valgrind" && toolchain="valgrind-memcheck"
2831
2832 case "$toolchain" in
2833     clang-asan)
2834         cc_default="clang"
2835         add_cflags  -fsanitize=address
2836         add_ldflags -fsanitize=address
2837     ;;
2838     clang-tsan)
2839         cc_default="clang"
2840         add_cflags  -fsanitize=thread -pie
2841         add_ldflags -fsanitize=thread -pie
2842     ;;
2843     clang-usan)
2844         cc_default="clang"
2845         add_cflags  -fsanitize=undefined
2846         add_ldflags -fsanitize=undefined
2847     ;;
2848     gcc-asan)
2849         cc_default="gcc"
2850         add_cflags  -fsanitize=address
2851         add_ldflags -fsanitize=address
2852     ;;
2853     gcc-tsan)
2854         cc_default="gcc"
2855         add_cflags  -fsanitize=thread -pie -fPIC
2856         add_ldflags -fsanitize=thread -pie -fPIC
2857     ;;
2858     gcc-usan)
2859         cc_default="gcc"
2860         add_cflags  -fsanitize=undefined
2861         add_ldflags -fsanitize=undefined
2862     ;;
2863     valgrind-massif)
2864         target_exec_default=${valgrind:-"valgrind"}
2865         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"
2866     ;;
2867     valgrind-memcheck)
2868         target_exec_default=${valgrind:-"valgrind"}
2869         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2870     ;;
2871     msvc)
2872         # Check whether the current MSVC version needs the C99 converter.
2873         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2874         # support enough of C99 to build ffmpeg. Default to the new
2875         # behaviour if the regexp was unable to match anything, since this
2876         # successfully parses the version number of existing supported
2877         # versions that require the converter (MSVC 2010 and 2012).
2878         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2879         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2880             cc_default="cl"
2881         else
2882             cc_default="c99wrap cl"
2883         fi
2884         ld_default="link"
2885         nm_default="dumpbin -symbols"
2886         ar_default="lib"
2887         target_os_default="win32"
2888         # Use a relative path for TMPDIR. This makes sure all the
2889         # ffconf temp files are written with a relative path, avoiding
2890         # issues with msys/win32 path conversion for MSVC parameters
2891         # such as -Fo<file> or -out:<file>.
2892         TMPDIR=.
2893     ;;
2894     icl)
2895         cc_default="icl"
2896         ld_default="xilink"
2897         nm_default="dumpbin -symbols"
2898         ar_default="xilib"
2899         target_os_default="win32"
2900         TMPDIR=.
2901     ;;
2902     gcov)
2903         add_cflags  -fprofile-arcs -ftest-coverage
2904         add_ldflags -fprofile-arcs -ftest-coverage
2905     ;;
2906     hardened)
2907         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2908         add_ldflags -Wl,-z,relro -Wl,-z,now
2909     ;;
2910     ?*)
2911         die "Unknown toolchain $toolchain"
2912     ;;
2913 esac
2914
2915 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2916 enabled cross_compile || host_cc_default=$cc
2917 set_default host_cc
2918
2919 if ! $pkg_config --version >/dev/null 2>&1; then
2920     warn "$pkg_config not found, library detection may fail."
2921     pkg_config=false
2922 fi
2923
2924 exesuf() {
2925     case $1 in
2926         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2927     esac
2928 }
2929
2930 EXESUF=$(exesuf $target_os)
2931 HOSTEXESUF=$(exesuf $host_os)
2932
2933 # set temporary file name
2934 : ${TMPDIR:=$TEMPDIR}
2935 : ${TMPDIR:=$TMP}
2936 : ${TMPDIR:=/tmp}
2937
2938 if [ -n "$tempprefix" ] ; then
2939     mktemp(){
2940         echo $tempprefix.${HOSTNAME}.${UID}
2941     }
2942 elif ! check_cmd mktemp -u XXXXXX; then
2943     # simple replacement for missing mktemp
2944     # NOT SAFE FOR GENERAL USE
2945     mktemp(){
2946         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2947     }
2948 fi
2949
2950 tmpfile(){
2951     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2952         (set -C; exec > $tmp) 2>/dev/null ||
2953         die "Unable to create temporary file in $TMPDIR."
2954     append TMPFILES $tmp
2955     eval $1=$tmp
2956 }
2957
2958 trap 'rm -f -- $TMPFILES' EXIT
2959
2960 tmpfile TMPASM .asm
2961 tmpfile TMPC   .c
2962 tmpfile TMPCPP .cpp
2963 tmpfile TMPE   $EXESUF
2964 tmpfile TMPH   .h
2965 tmpfile TMPO   .o
2966 tmpfile TMPS   .S
2967 tmpfile TMPSH  .sh
2968 tmpfile TMPV   .ver
2969
2970 unset -f mktemp
2971
2972 chmod +x $TMPE
2973
2974 # make sure we can execute files in $TMPDIR
2975 cat > $TMPSH 2>> $logfile <<EOF
2976 #! /bin/sh
2977 EOF
2978 chmod +x $TMPSH >> $logfile 2>&1
2979 if ! $TMPSH >> $logfile 2>&1; then
2980     cat <<EOF
2981 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2982 variable to another directory and make sure that it is not mounted noexec.
2983 EOF
2984     die "Sanity test failed."
2985 fi
2986
2987 ccc_flags(){
2988     for flag; do
2989         case $flag in
2990             -std=c99)           echo -c99                       ;;
2991             -mcpu=*)            echo -arch ${flag#*=}           ;;
2992             -mieee)             echo -ieee                      ;;
2993             -O*|-fast)          echo $flag                      ;;
2994             -fno-math-errno)    echo -assume nomath_errno       ;;
2995             -g)                 echo -g3                        ;;
2996             -Wall)              echo -msg_enable level2         ;;
2997             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2998             -Wl,*)              echo $flag                      ;;
2999             -f*|-W*)                                            ;;
3000             *)                  echo $flag                      ;;
3001         esac
3002    done
3003 }
3004
3005 cparser_flags(){
3006     for flag; do
3007         case $flag in
3008             -Wno-switch)             echo -Wno-switch-enum ;;
3009             -Wno-format-zero-length) ;;
3010             -Wdisabled-optimization) ;;
3011             -Wno-pointer-sign)       echo -Wno-other ;;
3012             *)                       echo $flag ;;
3013         esac
3014     done
3015 }
3016
3017 msvc_common_flags(){
3018     for flag; do
3019         case $flag in
3020             # In addition to specifying certain flags under the compiler
3021             # specific filters, they must be specified here as well or else the
3022             # generic catch all at the bottom will print the original flag.
3023             -Wall)                ;;
3024             -std=c99)             ;;
3025             # Common flags
3026             -fomit-frame-pointer) ;;
3027             -g)                   echo -Z7 ;;
3028             -fno-math-errno)      ;;
3029             -fno-common)          ;;
3030             -fno-signed-zeros)    ;;
3031             -fPIC)                ;;
3032             -mthumb)              ;;
3033             -march=*)             ;;
3034             -lz)                  echo zlib.lib ;;
3035             -lavifil32)           echo vfw32.lib ;;
3036             -lavicap32)           echo vfw32.lib user32.lib ;;
3037             -l*)                  echo ${flag#-l}.lib ;;
3038             *)                    echo $flag ;;
3039         esac
3040     done
3041 }
3042
3043 msvc_flags(){
3044     msvc_common_flags "$@"
3045     for flag; do
3046         case $flag in
3047             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3048                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3049                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3050                                        -wd4554 \
3051                                        -wd4273 ;;
3052         esac
3053     done
3054 }
3055
3056 icl_flags(){
3057     msvc_common_flags "$@"
3058     for flag; do
3059         case $flag in
3060             # Despite what Intel's documentation says -Wall, which is supported
3061             # on Windows, does enable remarks so disable them here.
3062             -Wall)                echo $flag -Qdiag-disable:remark ;;
3063             -std=c99)             echo -Qstd=c99 ;;
3064         esac
3065     done
3066 }
3067
3068 pgi_flags(){
3069     for flag; do
3070         case $flag in
3071             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3072             -fomit-frame-pointer) echo -Mnoframe ;;
3073             -g)                   echo -gopt ;;
3074             *)                    echo $flag ;;
3075         esac
3076     done
3077 }
3078
3079 suncc_flags(){
3080     for flag; do
3081         case $flag in
3082             -march=*|-mcpu=*)
3083                 case "${flag#*=}" in
3084                     native)                   echo -xtarget=native       ;;
3085                     v9|niagara)               echo -xarch=sparc          ;;
3086                     ultrasparc)               echo -xarch=sparcvis       ;;
3087                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3088                     i586|pentium)             echo -xchip=pentium        ;;
3089                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3090                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3091                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3092                     pentium4*)          echo -xtarget=pentium4           ;;
3093                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3094                     *-sse3)             echo -xarch=sse3                 ;;
3095                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3096                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3097                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3098                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3099                     bdver*)                    echo -xarch=avx           ;;
3100                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3101                     k8|opteron|athlon64|athlon-fx)
3102                                                echo -xarch=sse2a         ;;
3103                     athlon*)                   echo -xarch=pentium_proa  ;;
3104                 esac
3105                 ;;
3106             -std=c99)             echo -xc99              ;;
3107             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3108             -fPIC)                echo -KPIC -xcode=pic32 ;;
3109             -W*,*)                echo $flag              ;;
3110             -f*-*|-W*|-mimpure-text)                      ;;
3111             -shared)              echo -G                 ;;
3112             *)                    echo $flag              ;;
3113         esac
3114     done
3115 }
3116
3117 tms470_flags(){
3118     for flag; do
3119         case $flag in
3120             -march=*|-mcpu=*)
3121                 case "${flag#*=}" in
3122                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3123                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3124                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3125                     armv6*|arm11*)          echo -mv=6   ;;
3126                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3127                                             echo -mv=5e  ;;
3128                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3129                 esac
3130                 ;;
3131             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3132             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3133             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3134             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3135             -msoft-float)   echo --float_support=vfplib       ;;
3136             -O[0-3]|-mf=*)  echo $flag                        ;;
3137             -g)             echo -g -mn                       ;;
3138             -pds=*)         echo $flag                        ;;
3139             -D*|-I*)        echo $flag                        ;;
3140             --gcc|--abi=*)  echo $flag                        ;;
3141             -me)            echo $flag                        ;;
3142         esac
3143     done
3144 }
3145
3146 probe_cc(){
3147     pfx=$1
3148     _cc=$2
3149
3150     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3151     unset _ld_o _ldflags _ld_lib _ld_path
3152     unset _depflags _DEPCMD _DEPFLAGS
3153     _flags_filter=echo
3154
3155     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3156         true # no-op to avoid reading stdin in following checks
3157     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3158         _type=llvm_gcc
3159         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3160         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3161         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3162         _cflags_speed='-O3'
3163         _cflags_size='-Os'
3164     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3165         _type=gcc
3166         gcc_version=$($_cc --version | head -n1)
3167         gcc_basever=$($_cc -dumpversion)
3168         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3169         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3170         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3171         if ! $_cc -dumpversion | grep -q '^2\.'; then
3172             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3173         fi
3174         _cflags_speed='-O3'
3175         _cflags_size='-Os'
3176     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3177         _type=icc
3178         _ident=$($_cc --version | head -n1)
3179         _depflags='-MMD'
3180         _cflags_speed='-O3'
3181         _cflags_size='-Os'
3182         _cflags_noopt='-O1'
3183     elif $_cc -v 2>&1 | grep -q xlc; then
3184         _type=xlc
3185         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3186         _cflags_speed='-O5'
3187         _cflags_size='-O5 -qcompact'
3188     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3189         _type=ccc
3190         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3191         _DEPFLAGS='-M'
3192         _cflags_speed='-fast'
3193         _cflags_size='-O1'
3194         _flags_filter=ccc_flags
3195     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM C/C[+][+] Compiler|Component: ARM Compiler "; then
3196         test -d "$sysroot" || die "No valid sysroot specified."
3197         _type=armcc
3198         _ident=$($_cc --vsn | head -n1)
3199         armcc_conf="$PWD/armcc.conf"
3200         $_cc --arm_linux_configure                 \
3201              --arm_linux_config_file="$armcc_conf" \
3202              --configure_sysroot="$sysroot"        \
3203              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3204              die "Error creating armcc configuration file."
3205         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3206         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3207         as_default="${cross_prefix}gcc"
3208         _depflags='-MMD'
3209         _cflags_speed='-O3'
3210         _cflags_size='-Os'
3211     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3212         _type=tms470
3213         _ident=$($_cc -version | head -n1 | tr -s ' ')
3214         _flags='--gcc --abi=eabi -me'
3215         _cc_e='-ppl -fe=$@'
3216         _cc_o='-fe=$@'
3217         _depflags='-ppa -ppd=$(@:.o=.d)'
3218         _cflags_speed='-O3 -mf=5'
3219         _cflags_size='-O3 -mf=2'
3220         _flags_filter=tms470_flags
3221     elif $_cc -v 2>&1 | grep -q clang; then
3222         _type=clang
3223         _ident=$($_cc --version | head -n1)
3224         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3225         _cflags_speed='-O3'
3226         _cflags_size='-Os'
3227     elif $_cc -V 2>&1 | grep -q Sun; then
3228         _type=suncc
3229         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3230         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3231         _DEPFLAGS='-xM1 -xc99'
3232         _ldflags='-std=c99'
3233         _cflags_speed='-O5'
3234         _cflags_size='-O5 -xspace'
3235         _flags_filter=suncc_flags
3236     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3237         _type=pathscale
3238         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3239         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3240         _cflags_speed='-O2'
3241         _cflags_size='-Os'
3242         _flags_filter='filter_out -Wdisabled-optimization'
3243     elif $_cc -v 2>&1 | grep -q Open64; then
3244         _type=open64
3245         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3246         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3247         _cflags_speed='-O2'
3248         _cflags_size='-Os'
3249         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3250     elif $_cc -V 2>&1 | grep -q Portland; then
3251         _type=pgi
3252         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3253         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3254         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3255         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3256         _cflags_noopt="-O"
3257         _flags_filter=pgi_flags
3258     elif $_cc 2>&1 | grep -q Microsoft; then
3259         _type=msvc
3260         _ident=$($cc 2>&1 | head -n1)
3261         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3262         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3263         _cflags_speed="-O2"
3264         _cflags_size="-O1"
3265         if $_cc 2>&1 | grep -q Linker; then
3266             _ld_o='-out:$@'
3267         else
3268             _ld_o='-Fe$@'
3269         fi
3270         _cc_o='-Fo$@'
3271         _cc_e='-P -Fi$@'
3272         _flags_filter=msvc_flags
3273         _ld_lib='lib%.a'
3274         _ld_path='-libpath:'
3275         _flags='-nologo'
3276         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3277         if [ $pfx = hostcc ]; then
3278             append _cflags -Dsnprintf=_snprintf
3279         fi
3280         disable stripping
3281     elif $_cc 2>&1 | grep -q Intel; then
3282         _type=icl
3283         _ident=$($cc 2>&1 | head -n1)
3284         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3285         # Not only is O3 broken on 13.x+ but it is slower on all previous
3286         # versions (tested) as well.
3287         _cflags_speed="-O2"
3288         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3289         if $_cc 2>&1 | grep -q Linker; then
3290             _ld_o='-out:$@'
3291         else
3292             _ld_o='-Fe$@'
3293         fi
3294         _cc_o='-Fo$@'
3295         _cc_e='-P'
3296         _flags_filter=icl_flags
3297         _ld_lib='lib%.a'
3298         _ld_path='-libpath:'
3299         # -Qdiag-error to make icl error when seeing certain unknown arguments
3300         _flags='-nologo -Qdiag-error:4044,10157'
3301         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3302         # with MSVC which enables it by default.
3303         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3304         if [ $pfx = hostcc ]; then
3305             append _cflags -Dsnprintf=_snprintf
3306         fi
3307     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3308         _type=cparser
3309         _ident=$($_cc --version | head -n1)
3310         _depflags='-MMD'
3311         _cflags_speed='-O4'
3312         _cflags_size='-O2'
3313         _flags_filter=cparser_flags
3314     fi
3315
3316     eval ${pfx}_type=\$_type
3317     eval ${pfx}_ident=\$_ident
3318 }
3319
3320 set_ccvars(){
3321     eval ${1}_C=\${_cc_c-\${${1}_C}}
3322     eval ${1}_E=\${_cc_e-\${${1}_E}}
3323     eval ${1}_O=\${_cc_o-\${${1}_O}}
3324
3325     if [ -n "$_depflags" ]; then
3326         eval ${1}_DEPFLAGS=\$_depflags
3327     else
3328         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3329         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3330         eval DEP${1}FLAGS=\$_flags
3331     fi
3332 }
3333
3334 probe_cc cc "$cc"
3335 cflags_filter=$_flags_filter
3336 cflags_speed=$_cflags_speed
3337 cflags_size=$_cflags_size
3338 cflags_noopt=$_cflags_noopt
3339 add_cflags $_flags $_cflags
3340 cc_ldflags=$_ldflags
3341 set_ccvars CC
3342
3343 probe_cc hostcc "$host_cc"
3344 host_cflags_filter=$_flags_filter
3345 add_host_cflags  $_flags $_cflags
3346 set_ccvars HOSTCC
3347
3348 test -n "$cc_type" && enable $cc_type ||
3349     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3350
3351 : ${as_default:=$cc}
3352 : ${dep_cc_default:=$cc}
3353 : ${ld_default:=$cc}
3354 : ${host_ld_default:=$host_cc}
3355 set_default ar as dep_cc ld host_ld windres
3356
3357 probe_cc as "$as"
3358 asflags_filter=$_flags_filter
3359 add_asflags $_flags $_cflags
3360 set_ccvars AS
3361
3362 probe_cc ld "$ld"
3363 ldflags_filter=$_flags_filter
3364 add_ldflags $_flags $_ldflags
3365 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3366 LD_O=${_ld_o-$LD_O}
3367 LD_LIB=${_ld_lib-$LD_LIB}
3368 LD_PATH=${_ld_path-$LD_PATH}
3369
3370 probe_cc hostld "$host_ld"
3371 host_ldflags_filter=$_flags_filter
3372 add_host_ldflags $_flags $_ldflags
3373 HOSTLD_O=${_ld_o-$HOSTLD_O}
3374
3375 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3376     probe_cc depcc "$dep_cc"
3377     CCDEP=${_DEPCMD:-$DEPCMD}
3378     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3379     DEPCCFLAGS=$_flags
3380 fi
3381
3382 if $ar 2>&1 | grep -q Microsoft; then
3383     arflags="-nologo"
3384     ar_o='-out:$@'
3385 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3386     arflags="rq"
3387     ar_o='$@'
3388 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3389     arflags='-Xany -r -c'
3390     ar_o='$@'
3391 else
3392     arflags="rc"
3393     ar_o='$@'
3394 fi
3395
3396 add_cflags $extra_cflags
3397 add_cxxflags $extra_cxxflags
3398 add_asflags $extra_cflags
3399
3400 if test -n "$sysroot"; then
3401     case "$cc_type" in
3402         gcc|llvm_gcc|clang)
3403             add_cppflags --sysroot="$sysroot"
3404             add_ldflags --sysroot="$sysroot"
3405 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3406             add_cppflags -isysroot "$sysroot"
3407             add_ldflags -isysroot "$sysroot"
3408         ;;
3409         tms470)
3410             add_cppflags -I"$sysinclude"
3411             add_ldflags  --sysroot="$sysroot"
3412         ;;
3413     esac
3414 fi
3415
3416 if test "$cpu" = host; then
3417     enabled cross_compile &&
3418         die "--cpu=host makes no sense when cross-compiling."
3419
3420     case "$cc_type" in
3421         gcc|llvm_gcc)
3422             check_native(){
3423                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3424                 sed -n "/cc1.*$1=/{
3425                             s/.*$1=\\([^ ]*\\).*/\\1/
3426                             p
3427                             q
3428                         }" $TMPE
3429             }
3430             cpu=$(check_native -march || check_native -mcpu)
3431         ;;
3432     esac
3433
3434     test "${cpu:-host}" = host &&
3435         die "--cpu=host not supported with compiler $cc"
3436 fi
3437
3438 # Deal with common $arch aliases
3439 case "$arch" in
3440     aarch64|arm64)
3441         arch="aarch64"
3442     ;;
3443     arm*|iPad*|iPhone*)
3444         arch="arm"
3445     ;;
3446     mips*|IP*)
3447         arch="mips"
3448     ;;
3449     parisc*|hppa*)
3450         arch="parisc"
3451     ;;
3452     "Power Macintosh"|ppc*|powerpc*)
3453         arch="ppc"
3454     ;;
3455     s390|s390x)
3456         arch="s390"
3457     ;;
3458     sh4|sh)
3459         arch="sh4"
3460     ;;
3461     sun4u|sparc*)
3462         arch="sparc"
3463     ;;
3464     tilegx|tile-gx)
3465         arch="tilegx"
3466     ;;
3467     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3468         arch="x86"
3469     ;;
3470 esac
3471
3472 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3473 enable $arch
3474
3475 # Add processor-specific flags
3476 if enabled aarch64; then
3477
3478     case $cpu in
3479         armv*)
3480             cpuflags="-march=$cpu"
3481         ;;
3482         *)
3483             cpuflags="-mcpu=$cpu"
3484         ;;
3485     esac
3486
3487 elif enabled alpha; then
3488
3489     cpuflags="-mcpu=$cpu"
3490
3491 elif enabled arm; then
3492
3493     check_arm_arch() {
3494         check_cpp_condition stddef.h \
3495             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3496             $cpuflags
3497     }
3498
3499     probe_arm_arch() {
3500         if   check_arm_arch 4;        then echo armv4;
3501         elif check_arm_arch 4T;       then echo armv4t;
3502         elif check_arm_arch 5;        then echo armv5;
3503         elif check_arm_arch 5E;       then echo armv5e;
3504         elif check_arm_arch 5T;       then echo armv5t;
3505         elif check_arm_arch 5TE;      then echo armv5te;
3506         elif check_arm_arch 5TEJ;     then echo armv5te;
3507         elif check_arm_arch 6;        then echo armv6;
3508         elif check_arm_arch 6J;       then echo armv6j;
3509         elif check_arm_arch 6K;       then echo armv6k;
3510         elif check_arm_arch 6Z;       then echo armv6z;
3511         elif check_arm_arch 6ZK;      then echo armv6zk;
3512         elif check_arm_arch 6T2;      then echo armv6t2;
3513         elif check_arm_arch 7;        then echo armv7;
3514         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3515         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3516         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3517         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3518         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3519         fi
3520     }
3521
3522     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3523
3524     case $cpu in
3525         armv*)
3526             cpuflags="-march=$cpu"
3527             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3528         ;;
3529         *)
3530             cpuflags="-mcpu=$cpu"
3531             case $cpu in
3532                 cortex-a*)                               subarch=armv7a  ;;
3533                 cortex-r*)                               subarch=armv7r  ;;
3534                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3535                 arm11*)                                  subarch=armv6   ;;
3536                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3537                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3538                 *)                             subarch=$(probe_arm_arch) ;;
3539             esac
3540         ;;
3541     esac
3542
3543     case "$subarch" in
3544         armv5t*)    enable fast_clz                ;;
3545         armv[6-8]*) enable fast_clz fast_unaligned ;;
3546     esac
3547
3548 elif enabled avr32; then
3549
3550     case $cpu in
3551         ap7[02]0[0-2])
3552             subarch="avr32_ap"
3553             cpuflags="-mpart=$cpu"
3554         ;;
3555         ap)
3556             subarch="avr32_ap"
3557             cpuflags="-march=$cpu"
3558         ;;
3559         uc3[ab]*)
3560             subarch="avr32_uc"
3561             cpuflags="-mcpu=$cpu"
3562         ;;
3563         uc)
3564             subarch="avr32_uc"
3565             cpuflags="-march=$cpu"
3566         ;;
3567     esac
3568
3569 elif enabled bfin; then
3570
3571     cpuflags="-mcpu=$cpu"
3572
3573 elif enabled mips; then
3574
3575     cpuflags="-march=$cpu"
3576
3577     case $cpu in
3578         24kc)
3579             disable mipsfpu
3580             disable mipsdspr1
3581             disable mipsdspr2
3582         ;;
3583         24kf*)
3584             disable mipsdspr1
3585             disable mipsdspr2
3586         ;;
3587         24kec|34kc|1004kc)
3588             disable mipsfpu
3589             disable mipsdspr2
3590         ;;
3591         24kef*|34kf*|1004kf*)
3592             disable mipsdspr2
3593         ;;
3594         74kc)
3595             disable mipsfpu
3596         ;;
3597     esac
3598
3599 elif enabled ppc; then
3600
3601     disable ldbrx
3602
3603     case $(tolower $cpu) in
3604         601|ppc601|powerpc601)
3605             cpuflags="-mcpu=601"
3606             disable altivec
3607         ;;
3608         603*|ppc603*|powerpc603*)
3609             cpuflags="-mcpu=603"
3610             disable altivec
3611         ;;
3612         604*|ppc604*|powerpc604*)
3613             cpuflags="-mcpu=604"
3614             disable altivec
3615         ;;
3616         g3|75*|ppc75*|powerpc75*)
3617             cpuflags="-mcpu=750"
3618             disable altivec
3619         ;;
3620         g4|745*|ppc745*|powerpc745*)
3621             cpuflags="-mcpu=7450"
3622         ;;
3623         74*|ppc74*|powerpc74*)
3624             cpuflags="-mcpu=7400"
3625         ;;
3626         g5|970|ppc970|powerpc970)
3627             cpuflags="-mcpu=970"
3628         ;;
3629         power[3-7]*)
3630             cpuflags="-mcpu=$cpu"
3631         ;;
3632         cell)
3633             cpuflags="-mcpu=cell"
3634             enable ldbrx
3635         ;;
3636         e500mc)
3637             cpuflags="-mcpu=e500mc"
3638             disable altivec
3639         ;;
3640         e500v2)
3641             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3642             disable altivec
3643             disable dcbzl
3644         ;;
3645         e500)
3646             cpuflags="-mcpu=8540 -mhard-float"
3647             disable altivec
3648             disable dcbzl
3649         ;;
3650     esac
3651
3652 elif enabled sparc; then
3653
3654     case $cpu in
3655         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3656             cpuflags="-mcpu=$cpu"
3657         ;;
3658         ultrasparc*|niagara[234])
3659             cpuflags="-mcpu=$cpu"
3660         ;;
3661     esac
3662
3663 elif enabled x86; then
3664
3665     case $cpu in
3666         i[345]86|pentium)
3667             cpuflags="-march=$cpu"
3668             disable mmx
3669         ;;
3670         # targets that do NOT support nopl and conditional mov (cmov)
3671         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3672             cpuflags="-march=$cpu"
3673             disable i686
3674         ;;
3675         # targets that do support nopl and conditional mov (cmov)
3676         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3677             cpuflags="-march=$cpu"
3678             enable i686
3679             enable fast_cmov
3680         ;;
3681         # targets that do support conditional mov but on which it's slow
3682         pentium4|pentium4m|prescott|nocona)
3683             cpuflags="-march=$cpu"
3684             enable i686
3685             disable fast_cmov
3686         ;;
3687     esac
3688
3689 fi
3690
3691 if [ "$cpu" != generic ]; then
3692     add_cflags  $cpuflags
3693     add_asflags $cpuflags
3694 fi
3695
3696 # compiler sanity check
3697 check_exec <<EOF
3698 int main(void){ return 0; }
3699 EOF
3700 if test "$?" != 0; then
3701     echo "$cc is unable to create an executable file."
3702     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3703         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3704         echo "Only do this if you know what cross compiling means."
3705     fi
3706     die "C compiler test failed."
3707 fi
3708
3709 add_cppflags -D_ISOC99_SOURCE
3710 add_cxxflags -D__STDC_CONSTANT_MACROS
3711 check_cflags -std=c99
3712 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3713 #include <stdlib.h>
3714 EOF
3715 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3716 #include <stdlib.h>
3717 EOF
3718
3719 add_host_cppflags -D_ISOC99_SOURCE
3720 check_host_cflags -std=c99
3721 check_host_cflags -Wall
3722 check_host_cflags -O3
3723
3724 check_64bit(){
3725     arch32=$1
3726     arch64=$2
3727     expr=$3
3728     check_code cc "" "int test[2*($expr) - 1]" &&
3729         subarch=$arch64 || subarch=$arch32
3730 }
3731
3732 case "$arch" in
3733     aarch64|alpha|ia64)
3734         spic=$shared
3735     ;;
3736     mips)
3737         check_64bit mips mips64 '_MIPS_SIM > 1'
3738         spic=$shared
3739     ;;
3740     parisc)
3741         check_64bit parisc parisc64 'sizeof(void *) > 4'
3742         spic=$shared
3743     ;;
3744     ppc)
3745         check_64bit ppc ppc64 'sizeof(void *) > 4'
3746         spic=$shared
3747     ;;
3748     s390)
3749         check_64bit s390 s390x 'sizeof(void *) > 4'
3750         spic=$shared
3751     ;;
3752     sparc)
3753         check_64bit sparc sparc64 'sizeof(void *) > 4'
3754         spic=$shared
3755     ;;
3756     x86)
3757         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3758         if test "$subarch" = "x86_64"; then
3759             spic=$shared
3760         fi
3761     ;;
3762     ppc)
3763         check_cc <<EOF && subarch="ppc64"
3764         int test[(int)sizeof(char*) - 7];
3765 EOF
3766     ;;
3767 esac
3768
3769 enable $subarch
3770 enabled spic && enable_weak pic
3771
3772 # OS specific
3773 case $target_os in
3774     aix)
3775         SHFLAGS=-shared
3776         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3777         enabled shared && add_ldflags -Wl,-brtl
3778         ;;
3779     haiku)
3780         prefix_default="/boot/common"
3781         network_extralibs="-lnetwork"
3782         host_libs=
3783         ;;
3784     sunos)
3785         SHFLAGS='-shared -Wl,-h,$$(@F)'
3786         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3787         network_extralibs="-lsocket -lnsl"
3788         # When using suncc to build, the Solaris linker will mark
3789         # an executable with each instruction set encountered by
3790         # the Solaris assembler.  As our libraries contain their own
3791         # guards for processor-specific code, instead suppress
3792         # generation of the HWCAPS ELF section on Solaris x86 only.
3793         enabled_all suncc x86 &&
3794             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3795             add_ldflags -Wl,-M,mapfile
3796         nm_default='nm -P -g'
3797         ;;
3798     netbsd)
3799         disable symver
3800         oss_indev_extralibs="-lossaudio"
3801         oss_outdev_extralibs="-lossaudio"
3802         enabled gcc || check_ldflags -Wl,-zmuldefs
3803         ;;
3804     openbsd|bitrig)
3805         disable symver
3806         SHFLAGS='-shared'
3807         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3808         SLIB_INSTALL_LINKS=
3809         oss_indev_extralibs="-lossaudio"
3810         oss_outdev_extralibs="-lossaudio"
3811         ;;
3812     dragonfly)
3813         disable symver
3814         ;;
3815     freebsd)
3816         ;;
3817     bsd/os)
3818         add_extralibs -lpoll -lgnugetopt
3819         strip="strip -d"
3820         ;;
3821     darwin)
3822         gas="gas-preprocessor.pl $cc"
3823         enabled ppc && add_asflags -force_cpusubtype_ALL
3824         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3825         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3826         strip="${strip} -x"
3827         add_ldflags -Wl,-dynamic,-search_paths_first
3828         SLIBSUF=".dylib"
3829         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3830         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3831         objformat="macho"
3832         enabled x86_64 && objformat="macho64"
3833         enabled_any pic shared ||
3834             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3835         ;;
3836     mingw32*)
3837         if test $target_os = "mingw32ce"; then
3838             disable network
3839         else
3840             target_os=mingw32
3841         fi
3842         LIBTARGET=i386
3843         if enabled x86_64; then
3844             LIBTARGET="i386:x86-64"
3845         elif enabled arm; then
3846             LIBTARGET=arm-wince
3847         fi
3848         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3849         check_ldflags -Wl,--nxcompat
3850         check_ldflags -Wl,--dynamicbase
3851         shlibdir_default="$bindir_default"
3852         SLIBPREF=""
3853         SLIBSUF=".dll"
3854         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3855         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3856         dlltool="${cross_prefix}dlltool"
3857         if check_cmd lib.exe -list; then
3858             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3859             if enabled x86_64; then
3860                 LIBTARGET=x64
3861             fi
3862         elif check_cmd $dlltool --version; then
3863             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3864         fi
3865         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3866         SLIB_INSTALL_LINKS=
3867         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3868         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3869         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3870         objformat="win32"
3871         ranlib=:
3872         enable dos_paths
3873         ;;
3874     win32|win64)
3875         disable symver
3876         if enabled shared; then
3877             # Link to the import library instead of the normal static library
3878             # for shared libs.
3879             LD_LIB='%.lib'
3880             # Cannot build both shared and static libs with MSVC or icl.
3881             disable static
3882         fi
3883         shlibdir_default="$bindir_default"
3884         SLIBPREF=""
3885         SLIBSUF=".dll"
3886         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3887         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3888         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3889         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3890         SLIB_INSTALL_LINKS=
3891         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3892         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3893         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3894         objformat="win32"
3895         ranlib=:
3896         enable dos_paths
3897         ;;
3898     cygwin*)
3899         target_os=cygwin
3900         shlibdir_default="$bindir_default"
3901         SLIBPREF="cyg"
3902         SLIBSUF=".dll"
3903         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3904         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3905         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3906         SLIB_INSTALL_LINKS=
3907         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3908         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3909         objformat="win32"
3910         enable dos_paths
3911         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3912         ;;
3913     *-dos|freedos|opendos)
3914         network_extralibs="-lsocket"
3915         objformat="coff"
3916         enable dos_paths
3917         add_cppflags -U__STRICT_ANSI__
3918         ;;
3919     linux)
3920         enable dv1394
3921         ;;
3922     irix*)
3923         target_os=irix
3924         ranlib="echo ignoring ranlib"
3925         ;;
3926     os/2*)
3927         strip="lxlite -CS"
3928         ln_s="cp -f"
3929         objformat="aout"
3930         add_cppflags -D_GNU_SOURCE
3931         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3932         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3933         LIBSUF="_s.a"
3934         SLIBPREF=""
3935         SLIBSUF=".dll"
3936         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3937         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3938         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3939             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3940             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3941             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3942             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3943             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3944         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3945             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3946         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3947         enable dos_paths
3948         enable_weak os2threads
3949         ;;
3950     gnu/kfreebsd)
3951         add_cppflags -D_BSD_SOURCE
3952         ;;
3953     gnu)
3954         ;;
3955     qnx)
3956         add_cppflags -D_QNX_SOURCE
3957         network_extralibs="-lsocket"
3958         ;;
3959     symbian)
3960         SLIBSUF=".dll"
3961         enable dos_paths
3962         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3963         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3964         add_ldflags -Wl,--target1-abs,--no-undefined \
3965                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3966                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3967         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3968                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3969                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3970         ;;
3971     osf1)
3972         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3973         ;;
3974     minix)
3975         ;;
3976     plan9)
3977         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3978                      -D_REENTRANT_SOURCE        \
3979                      -D_RESEARCH_SOURCE         \
3980                      -DFD_SETSIZE=96            \
3981                      -DHAVE_SOCK_OPTS
3982         add_compat strtod.o strtod=avpriv_strtod
3983         network_extralibs='-lbsd'
3984         exeobjs=compat/plan9/main.o
3985         disable ffserver
3986         cp_f='cp'
3987         ;;
3988     none)
3989         ;;
3990     *)
3991         die "Unknown OS '$target_os'."
3992         ;;
3993 esac
3994
3995 # determine libc flavour
3996
3997 probe_libc(){
3998     pfx=$1
3999     pfx_no_=${pfx%_}
4000     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4001     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4002         eval ${pfx}libc_type=uclibc
4003         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4004     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4005         eval ${pfx}libc_type=glibc
4006         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4007     # MinGW headers can be installed on Cygwin, so check for newlib first.
4008     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4009         eval ${pfx}libc_type=newlib
4010         add_${pfx}cppflags -U__STRICT_ANSI__
4011     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4012     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4013         eval ${pfx}libc_type=mingw64
4014         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4015             add_compat msvcrt/snprintf.o
4016             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4017         fi
4018         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4019         eval test \$${pfx_no_}cc_type = "gcc" &&
4020             add_${pfx}cppflags -D__printf__=__gnu_printf__
4021     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4022          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4023         eval ${pfx}libc_type=mingw32
4024         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4025             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4026             die "ERROR: MinGW32 runtime version must be >= 3.15."
4027         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4028         eval test \$${pfx_no_}cc_type = "gcc" &&
4029             add_${pfx}cppflags -D__printf__=__gnu_printf__
4030     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4031         eval ${pfx}libc_type=msvcrt
4032         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4033         # 0x601 by default unless something else is set by the user.
4034         # This can easily lead to us detecting functions only present
4035         # in such new versions and producing binaries requiring windows 7.0.
4036         # Therefore explicitly set the default to XP unless the user has
4037         # set something else on the command line.
4038         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4039             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4040     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4041         eval ${pfx}libc_type=klibc
4042     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4043         eval ${pfx}libc_type=bionic
4044     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4045         eval ${pfx}libc_type=solaris
4046         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4047     fi
4048 }
4049
4050 probe_libc
4051 test -n "$libc_type" && enable libc_$libc_type
4052 probe_libc host_
4053 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4054
4055 case $libc_type in
4056     bionic)
4057         add_compat strtod.o strtod=avpriv_strtod
4058         ;;
4059     msvcrt)
4060         add_compat strtod.o strtod=avpriv_strtod
4061         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4062                                      _snprintf=avpriv_snprintf  \
4063                                      vsnprintf=avpriv_vsnprintf
4064         ;;
4065 esac
4066
4067 # hacks for compiler/libc/os combinations
4068
4069 if enabled_all tms470 libc_glibc; then
4070     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4071     add_cppflags -D__USER_LABEL_PREFIX__=
4072     add_cppflags -D__builtin_memset=memset
4073     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4074     add_cflags   -pds=48    # incompatible redefinition of macro
4075 fi
4076
4077 if enabled_all ccc libc_glibc; then
4078     add_ldflags -Wl,-z,now  # calls to libots crash without this
4079 fi
4080
4081 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4082     add_cppflags '-I\$(SRC_PATH)/compat/float'
4083
4084 esc(){
4085     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4086 }
4087
4088 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4089
4090 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4091
4092 set_default $PATHS_LIST
4093 set_default nm
4094
4095 # we need to build at least one lib type
4096 if ! enabled_any static shared; then
4097     cat <<EOF
4098 At least one library type must be built.
4099 Specify --enable-static to build the static libraries or --enable-shared to
4100 build the shared libraries as well. To only build the shared libraries specify
4101 --disable-static in addition to --enable-shared.
4102 EOF
4103     exit 1;
4104 fi
4105
4106 # backward compatibility layer for incompatible_libav/fork_abi
4107 enabled incompatible_fork_abi  && enable incompatible_libav_abi
4108 enabled incompatible_libav_abi && enable incompatible_fork_abi
4109
4110 die_license_disabled() {
4111     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4112 }
4113
4114 die_license_disabled_gpl() {
4115     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4116 }
4117
4118 die_license_disabled gpl frei0r
4119 die_license_disabled gpl libcdio
4120 die_license_disabled gpl libutvideo
4121 die_license_disabled gpl libvidstab
4122 die_license_disabled gpl libx264
4123 die_license_disabled gpl libx265
4124 die_license_disabled gpl libxavs
4125 die_license_disabled gpl libxvid
4126 die_license_disabled gpl libzvbi
4127 die_license_disabled gpl x11grab
4128
4129 die_license_disabled nonfree libaacplus
4130 die_license_disabled nonfree libfaac
4131 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4132 enabled gpl && die_license_disabled_gpl nonfree openssl
4133
4134 die_license_disabled version3 libopencore_amrnb
4135 die_license_disabled version3 libopencore_amrwb
4136 die_license_disabled version3 libvo_aacenc
4137 die_license_disabled version3 libvo_amrwbenc
4138
4139 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4140
4141 disabled optimizations || check_cflags -fomit-frame-pointer
4142
4143 enable_weak_pic() {
4144     disabled pic && return
4145     enable pic
4146     add_cppflags -DPIC
4147     case "$target_os" in
4148     mingw*|cygwin*)
4149         ;;
4150     *)
4151         add_cflags -fPIC
4152         ;;
4153     esac
4154     add_asflags  -fPIC
4155 }
4156
4157 enabled pic && enable_weak_pic
4158
4159 check_cc <<EOF || die "Symbol mangling check failed."
4160 int ff_extern;
4161 EOF
4162 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4163 extern_prefix=${sym%%ff_extern*}
4164
4165 check_cc <<EOF && enable_weak inline_asm
4166 void foo(void) { __asm__ volatile ("" ::); }
4167 EOF
4168
4169 _restrict=
4170 for restrict_keyword in restrict __restrict__ __restrict; do
4171     check_cc <<EOF && _restrict=$restrict_keyword && break
4172 void foo(char * $restrict_keyword p);
4173 EOF
4174 done
4175
4176 check_cc <<EOF && enable pragma_deprecated
4177 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4178 EOF
4179
4180 check_cc <<EOF && enable attribute_packed
4181 struct { int x; } __attribute__((packed)) x;
4182 EOF
4183
4184 check_cc <<EOF && enable attribute_may_alias
4185 union { int x; } __attribute__((may_alias)) x;
4186 EOF
4187
4188 check_cc <<EOF || die "endian test failed"
4189 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4190 EOF
4191 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4192
4193 check_inline_asm inline_asm_labels '"1:\n"'
4194
4195 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4196
4197 if enabled aarch64; then
4198     # internal assembler in clang 3.3 does not support this instruction
4199     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4200     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4201
4202     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4203
4204 elif enabled alpha; then
4205
4206     check_cflags -mieee
4207
4208 elif enabled arm; then
4209
4210     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4211 float func(float a, float b){ return a+b; }
4212 EOF
4213
4214     enabled thumb && check_cflags -mthumb || check_cflags -marm
4215     nogas=die
4216
4217     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4218         enable vfp_args
4219     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4220         case "${cross_prefix:-$cc}" in
4221             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4222             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4223 __asm__ (".eabi_attribute 28, 1");
4224 int main(void) { return 0; }
4225 EOF
4226         esac
4227         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4228     fi
4229
4230     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4231     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4232     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4233     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4234     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4235     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4236
4237     [ $target_os = linux ] ||
4238         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4239             $ARCH_EXT_LIST_ARM
4240
4241     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4242
4243     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4244
4245 elif enabled mips; then
4246
4247     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4248     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4249      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4250     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4251      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4252     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4253      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4254     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4255      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4256
4257 elif enabled parisc; then
4258
4259     if enabled gcc; then
4260         case $($cc -dumpversion) in
4261             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4262         esac
4263     fi
4264
4265 elif enabled ppc; then
4266
4267     enable local_aligned_8 local_aligned_16
4268
4269     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4270     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4271     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4272     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4273
4274     # AltiVec flags: The FSF version of GCC differs from the Apple version
4275     if enabled altivec; then
4276         if ! enabled_any pic ppc64; then
4277             nogas=warn
4278         fi
4279         check_cflags -maltivec -mabi=altivec &&
4280         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4281         check_cflags -faltivec
4282
4283         # check if our compiler supports Motorola AltiVec C API
4284         check_cc <<EOF || disable altivec
4285 $inc_altivec_h
4286 int main(void) {
4287     vector signed int v1 = (vector signed int) { 0 };
4288     vector signed int v2 = (vector signed int) { 1 };
4289     v1 = vec_add(v1, v2);
4290     return 0;
4291 }
4292 EOF
4293
4294         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4295     fi
4296
4297 elif enabled x86; then
4298
4299     check_builtin rdtsc    intrin.h   "__rdtsc()"
4300     check_builtin mm_empty mmintrin.h "_mm_empty()"
4301
4302     enable local_aligned_8 local_aligned_16
4303
4304     # check whether EBP is available on x86
4305     # As 'i' is stored on the stack, this program will crash
4306     # if the base pointer is used to access it because the
4307     # base pointer is cleared in the inline assembly code.
4308     check_exec_crash <<EOF && enable ebp_available
4309 volatile int i=0;
4310 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4311 return i;
4312 EOF
4313
4314     # check whether EBX is available on x86
4315     check_inline_asm ebx_available '""::"b"(0)' &&
4316         check_inline_asm ebx_available '"":::"%ebx"'
4317
4318     # check whether xmm clobbers are supported
4319     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4320
4321     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4322         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4323
4324     # check whether binutils is new enough to compile SSSE3/MMXEXT
4325     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4326     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4327
4328     if ! disabled_any asm mmx yasm; then
4329         if check_cmd $yasmexe --version; then
4330             enabled x86_64 && yasm_extra="-m amd64"
4331             yasm_debug="-g dwarf2"
4332         elif check_cmd nasm -v; then
4333             yasmexe=nasm
4334             yasm_debug="-g -F dwarf"
4335             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4336         fi
4337
4338         YASMFLAGS="-f $objformat $yasm_extra"
4339         enabled pic               && append YASMFLAGS "-DPIC"
4340         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4341         case "$objformat" in
4342             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4343         esac
4344
4345         check_yasm "movbe ecx, [5]" && enable yasm ||
4346             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4347         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4348         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4349         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4350         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4351         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4352         check_yasm "CPU amdnop" || disable cpunop
4353     fi
4354
4355     case "$cpu" in
4356         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4357             disable fast_clz
4358         ;;
4359     esac
4360
4361 fi
4362
4363 if enabled asm; then
4364     as=${gas:=$as}
4365     check_as <<EOF && enable gnu_as || \
4366         $nogas "GNU assembler not found, install gas-preprocessor"
4367 .macro m n
4368 \n: .int 0
4369 .endm
4370 m x
4371 EOF
4372 fi
4373
4374 check_ldflags -Wl,--as-needed
4375
4376 if check_func dlopen; then
4377     ldl=
4378 elif check_func dlopen -ldl; then
4379     ldl=-ldl
4380 fi
4381
4382 if ! disabled network; then
4383     check_func getaddrinfo $network_extralibs
4384     check_func getservbyport $network_extralibs
4385     check_func inet_aton $network_extralibs
4386
4387     check_type netdb.h "struct addrinfo"
4388     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4389     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4390     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4391     check_type poll.h "struct pollfd"
4392     check_type netinet/sctp.h "struct sctp_event_subscribe"
4393     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4394     check_type netinet/in.h "struct sockaddr_in6"
4395     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4396     check_type "sys/types.h sys/socket.h" socklen_t
4397
4398     # Prefer arpa/inet.h over winsock2
4399     if check_header arpa/inet.h ; then
4400         check_func closesocket
4401     elif check_header winsock2.h ; then
4402         check_func_headers winsock2.h closesocket -lws2 &&
4403             network_extralibs="-lws2" ||
4404         { check_func_headers winsock2.h closesocket -lws2_32 &&
4405             network_extralibs="-lws2_32"; } || disable winsock2_h network
4406         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4407
4408         check_type ws2tcpip.h socklen_t
4409         check_type ws2tcpip.h "struct addrinfo"
4410         check_type ws2tcpip.h "struct group_source_req"
4411         check_type ws2tcpip.h "struct ip_mreq_source"
4412         check_type ws2tcpip.h "struct ipv6_mreq"
4413         check_type winsock2.h "struct pollfd"
4414         check_struct winsock2.h "struct sockaddr" sa_len
4415         check_type ws2tcpip.h "struct sockaddr_in6"
4416         check_type ws2tcpip.h "struct sockaddr_storage"
4417     else
4418         disable network
4419     fi
4420 fi
4421
4422 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4423 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4424 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4425 check_builtin sarestart signal.h "SA_RESTART"
4426 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4427
4428 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4429 check_func  ${malloc_prefix}memalign            && enable memalign
4430 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4431
4432 check_func  access
4433 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4434 check_func  fcntl
4435 check_func  fork
4436 check_func  gethrtime
4437 check_func  getopt
4438 check_func  getrusage
4439 check_func  gettimeofday
4440 check_func  isatty
4441 check_func  localtime_r
4442 check_func  mach_absolute_time
4443 check_func  mkstemp
4444 check_func  mmap
4445 check_func  mprotect
4446 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4447 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4448 check_func  sched_getaffinity
4449 check_func  setrlimit
4450 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4451 check_func  strerror_r
4452 check_func  sysconf
4453 check_func  sysctl
4454 check_func  usleep
4455
4456 check_func_headers conio.h kbhit
4457 check_func_headers io.h setmode
4458 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4459 check_func_headers stdlib.h getenv
4460
4461 check_func_headers windows.h GetProcessAffinityMask
4462 check_func_headers windows.h GetProcessTimes
4463 check_func_headers windows.h GetSystemTimeAsFileTime
4464 check_func_headers windows.h MapViewOfFile
4465 check_func_headers windows.h PeekNamedPipe
4466 check_func_headers windows.h SetConsoleTextAttribute
4467 check_func_headers windows.h Sleep
4468 check_func_headers windows.h VirtualAlloc
4469 check_func_headers glob.h glob
4470 enabled xlib &&
4471     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4472
4473 check_header cl/cl.h
4474 check_header direct.h
4475 check_header dlfcn.h
4476 check_header dxva.h
4477 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4478 check_header io.h
4479 check_header libcrystalhd/libcrystalhd_if.h
4480 check_header mach/mach_time.h
4481 check_header malloc.h
4482 check_header poll.h
4483 check_header sys/mman.h
4484 check_header sys/param.h
4485 check_header sys/resource.h
4486 check_header sys/select.h
4487 check_header sys/time.h
4488 check_header sys/un.h
4489 check_header termios.h
4490 check_header unistd.h
4491 check_header vdpau/vdpau.h
4492 check_header vdpau/vdpau_x11.h
4493 check_header VideoDecodeAcceleration/VDADecoder.h
4494 check_header windows.h
4495 check_header X11/extensions/XvMClib.h
4496 check_header asm/types.h
4497
4498 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4499 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4500 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4501
4502 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4503
4504 if ! disabled w32threads && ! enabled pthreads; then
4505     check_func_headers "windows.h process.h" _beginthreadex &&
4506         enable w32threads || disable w32threads
4507 fi
4508
4509 # check for some common methods of building with pthread support
4510 # do this before the optional library checks as some of them require pthreads
4511 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4512     enable pthreads
4513     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4514         add_cflags -pthread
4515         add_extralibs -pthread
4516     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4517         add_cflags -pthreads
4518         add_extralibs -pthreads
4519     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4520         add_extralibs -lpthreadGC2
4521     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4522         :
4523     elif ! check_func pthread_join && ! check_func pthread_create; then
4524         disable pthreads
4525     fi
4526     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4527 fi
4528
4529
4530 if enabled pthreads; then
4531   check_func pthread_cancel
4532 fi
4533
4534 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4535 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4536
4537 check_lib math.h sin -lm && LIBM="-lm"
4538 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4539
4540 atan2f_args=2
4541 ldexpf_args=2
4542 powf_args=2
4543
4544 for func in $MATH_FUNCS; do
4545     eval check_mathfunc $func \${${func}_args:-1}
4546 done
4547
4548 # these are off by default, so fail if requested and not available
4549 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4550                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4551                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4552 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4553 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4554 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4555 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4556 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4557 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4558 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4559 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4560 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4561 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4562                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4563                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4564 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4565 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4566 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4567 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"
4568 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4569 enabled libfreetype       && require_libfreetype
4570 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4571 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4572                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4573                                done || die "ERROR: libgsm not found"; }
4574 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4575 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4576 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4577 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4578 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4579 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4580 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4581 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4582                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4583                                die "ERROR: libopenjpeg not found"; }
4584 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4585 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4586 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4587 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4588 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4589 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4590 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4591 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4592 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4593 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4594     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4595     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4596 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4597 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4598                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4599                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4600 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4601 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4602 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4603 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4604 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4605 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4606 enabled libvpx            && {
4607     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4608                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4609     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 ||
4610                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4611     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4612     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; } }
4613 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4614 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4615 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4616                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4617                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4618 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4619                              { check_cpp_condition x265.h "X265_BUILD >= 13" ||
4620                                die "ERROR: libx265 version must be >= 13."; }
4621 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4622 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4623 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4624 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4625 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4626                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4627                                die "ERROR: openal not found"; } &&
4628                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4629                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4630 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4631                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4632                                die "ERROR: opencl not found"; } &&
4633                              { ! enabled_any w32threads os2threads ||
4634                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4635                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4636                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4637                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4638 enabled opengl            && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4639                                check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4640                                check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4641                                check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4642                                die "ERROR: opengl not found."
4643                              }
4644 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4645                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4646                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4647                                die "ERROR: openssl not found"; }
4648 enabled qtkit_indev      && { check_header QTKit/QTKit.h || disable qtkit_indev; }
4649
4650 if enabled gnutls; then
4651     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4652     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4653 fi
4654
4655 # libdc1394 check
4656 if enabled libdc1394; then
4657     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4658         enable libdc1394_2; } ||
4659     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4660         enable libdc1394_1; } ||
4661     die "ERROR: No version of libdc1394 found "
4662 fi
4663
4664 SDL_CONFIG="${cross_prefix}sdl-config"
4665 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4666     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4667     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4668     enable sdl
4669 else
4670   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4671     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4672     sdl_libs=$("${SDL_CONFIG}" --libs)
4673     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4674     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4675     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4676     enable sdl
4677   fi
4678 fi
4679 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4680
4681 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4682 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4683 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
4684 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4685 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4686
4687 check_header linux/fb.h
4688 check_header linux/videodev.h
4689 check_header linux/videodev2.h
4690 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4691
4692 check_header sys/videoio.h
4693
4694 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4695 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4696 # w32api 3.12 had it defined wrong
4697 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4698
4699 check_type "dshow.h" IBaseFilter
4700
4701 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4702 { check_header dev/bktr/ioctl_meteor.h &&
4703   check_header dev/bktr/ioctl_bt848.h; } ||
4704 { check_header machine/ioctl_meteor.h &&
4705   check_header machine/ioctl_bt848.h; } ||
4706 { check_header dev/video/meteor/ioctl_meteor.h &&
4707   check_header dev/video/bktr/ioctl_bt848.h; } ||
4708 check_header dev/ic/bt8xx.h
4709
4710 check_header sndio.h
4711 if check_struct sys/soundcard.h audio_buf_info bytes; then
4712     enable_safe sys/soundcard.h
4713 else
4714     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4715     #include <sys/soundcard.h>
4716     audio_buf_info abc;
4717 EOF
4718 fi
4719 check_header soundcard.h
4720
4721 enabled_any alsa_indev alsa_outdev &&
4722     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4723
4724 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4725     check_func jack_port_get_latency_range -ljack
4726
4727 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4728
4729 if enabled libcdio; then
4730     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4731     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4732     die "ERROR: libcdio-paranoia not found"
4733 fi
4734
4735 enabled xlib &&
4736     check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
4737
4738 enabled x11grab                                           &&
4739 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4740 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4741 { enabled xlib || die "ERROR: Xlib not found"; }
4742
4743 enabled vaapi &&
4744     check_lib va/va.h vaInitialize -lva ||
4745     disable vaapi
4746
4747 enabled vdpau &&
4748     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4749     disable vdpau
4750
4751 enabled vdpau && enabled xlib &&
4752     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4753     prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
4754     enable vdpau_x11
4755
4756 # Funny iconv installations are not unusual, so check it after all flags have been set
4757 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4758
4759 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4760
4761 # add some useful compiler flags if supported
4762 check_cflags -Wdeclaration-after-statement
4763 check_cflags -Wall
4764 check_cflags -Wdisabled-optimization
4765 check_cflags -Wpointer-arith
4766 check_cflags -Wredundant-decls
4767 check_cflags -Wwrite-strings
4768 check_cflags -Wtype-limits
4769 check_cflags -Wundef
4770 check_cflags -Wmissing-prototypes
4771 check_cflags -Wno-pointer-to-int-cast
4772 check_cflags -Wstrict-prototypes
4773 enabled extra_warnings && check_cflags -Winline
4774
4775 check_disable_warning(){
4776     warning_flag=-W${1#-Wno-}
4777     test_cflags $warning_flag && add_cflags $1
4778 }
4779
4780 check_disable_warning -Wno-parentheses
4781 check_disable_warning -Wno-switch
4782 check_disable_warning -Wno-format-zero-length
4783 check_disable_warning -Wno-pointer-sign
4784
4785 # add some linker flags
4786 check_ldflags -Wl,--warn-common
4787 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4788 enabled rpath && add_ldflags -Wl,-rpath=$libdir
4789 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4790
4791 # add some strip flags
4792 # -wN '..@*' is more selective than -x, but not available everywhere.
4793 check_stripflags -wN \'..@*\' || check_stripflags -x
4794
4795 enabled neon_clobber_test &&
4796     check_ldflags -Wl,--wrap,avcodec_open2              \
4797                   -Wl,--wrap,avcodec_decode_audio4      \
4798                   -Wl,--wrap,avcodec_decode_video2      \
4799                   -Wl,--wrap,avcodec_decode_subtitle2   \
4800                   -Wl,--wrap,avcodec_encode_audio2      \
4801                   -Wl,--wrap,avcodec_encode_video2      \
4802                   -Wl,--wrap,avcodec_encode_subtitle    \
4803                   -Wl,--wrap,swr_convert                \
4804                   -Wl,--wrap,avresample_convert ||
4805     disable neon_clobber_test
4806
4807 enabled xmm_clobber_test &&
4808     check_ldflags -Wl,--wrap,avcodec_open2              \
4809                   -Wl,--wrap,avcodec_decode_audio4      \
4810                   -Wl,--wrap,avcodec_decode_video2      \
4811                   -Wl,--wrap,avcodec_decode_subtitle2   \
4812                   -Wl,--wrap,avcodec_encode_audio2      \
4813                   -Wl,--wrap,avcodec_encode_video       \
4814                   -Wl,--wrap,avcodec_encode_video2      \
4815                   -Wl,--wrap,avcodec_encode_subtitle    \
4816                   -Wl,--wrap,swr_convert                \
4817                   -Wl,--wrap,avresample_convert         \
4818                   -Wl,--wrap,sws_scale ||
4819     disable xmm_clobber_test
4820
4821 echo "X{};" > $TMPV
4822 if test_ldflags -Wl,--version-script,$TMPV; then
4823     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4824     check_cc <<EOF && enable symver_asm_label
4825 void ff_foo(void) __asm__ ("av_foo@VERSION");
4826 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4827 EOF
4828     check_cc <<EOF && enable symver_gnu_asm
4829 __asm__(".symver ff_foo,av_foo@VERSION");
4830 void ff_foo(void) {}
4831 EOF
4832 fi
4833
4834 if [ -z "$optflags" ]; then
4835     if enabled small; then
4836         optflags=$cflags_size
4837     elif enabled optimizations; then
4838         optflags=$cflags_speed
4839     else
4840         optflags=$cflags_noopt
4841     fi
4842 fi
4843
4844 check_optflags(){
4845     check_cflags "$@"
4846     enabled lto && check_ldflags "$@"
4847 }
4848
4849
4850 if enabled lto; then
4851     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4852     check_cflags  -flto
4853     check_ldflags -flto $cpuflags
4854 fi
4855
4856 check_optflags $optflags
4857 check_optflags -fno-math-errno
4858 check_optflags -fno-signed-zeros
4859
4860 enabled ftrapv && check_cflags -ftrapv
4861
4862 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4863 int x;
4864 EOF
4865
4866
4867 if enabled icc; then
4868     # Just warnings, no remarks
4869     check_cflags -w1
4870     # -wd: Disable following warnings
4871     # 144, 167, 556: -Wno-pointer-sign
4872     # 188: enumerated type mixed with another type
4873     # 1292: attribute "foo" ignored
4874     # 1419: external declaration in primary source file
4875     # 10006: ignoring unknown option -fno-signed-zeros
4876     # 10148: ignoring unknown option -Wno-parentheses
4877     # 10156: ignoring option '-W'; no argument required
4878     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4879     # 11030: Warning unknown option --as-needed
4880     # 10156: ignoring option '-export'; no argument required
4881     check_ldflags -wd10156,11030
4882     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4883     enable ebp_available
4884     if enabled x86_32; then
4885         icc_version=$($cc -dumpversion)
4886         test ${icc_version%%.*} -ge 11 &&
4887             check_cflags -falign-stack=maintain-16-byte ||
4888             disable aligned_stack
4889     fi
4890 elif enabled ccc; then
4891     # disable some annoying warnings
4892     add_cflags -msg_disable bitnotint
4893     add_cflags -msg_disable mixfuncvoid
4894     add_cflags -msg_disable nonstandcast
4895     add_cflags -msg_disable unsupieee
4896 elif enabled gcc; then
4897     check_optflags -fno-tree-vectorize
4898     check_cflags -Werror=implicit-function-declaration
4899     check_cflags -Werror=missing-prototypes
4900     check_cflags -Werror=return-type
4901     check_cflags -Werror=vla
4902     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4903 elif enabled llvm_gcc; then
4904     check_cflags -mllvm -stack-alignment=16
4905 elif enabled clang; then
4906     check_cflags -mllvm -stack-alignment=16
4907     check_cflags -Qunused-arguments
4908     check_cflags -Werror=implicit-function-declaration
4909     check_cflags -Werror=missing-prototypes
4910     check_cflags -Werror=return-type
4911 elif enabled cparser; then
4912     add_cflags -Wno-missing-variable-declarations
4913     add_cflags -Wno-empty-statement
4914 elif enabled armcc; then
4915     # 2523: use of inline assembler is deprecated
4916     add_cflags -W${armcc_opt},--diag_suppress=2523
4917     add_cflags -W${armcc_opt},--diag_suppress=1207
4918     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4919     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4920     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4921     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4922 elif enabled tms470; then
4923     add_cflags -pds=824 -pds=837
4924     disable inline_asm
4925 elif enabled pathscale; then
4926     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4927 elif enabled_any msvc icl; then
4928     enabled x86_32 && disable aligned_stack
4929     enabled_all x86_32 debug && add_cflags -Oy-
4930     enabled debug && add_ldflags -debug
4931     enable pragma_deprecated
4932     if enabled icl; then
4933         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4934         # (correctly) on icl 13.x.
4935         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4936             add_cflags -Qansi-alias
4937         # icl will pass the inline asm tests but inline asm is currently
4938         # not supported (build will fail)
4939         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4940         disable inline_asm
4941     fi
4942 fi
4943
4944 case $as_type in
4945     clang)
4946         add_asflags -Qunused-arguments
4947     ;;
4948 esac
4949
4950 case $ld_type in
4951     clang)
4952         check_ldflags -Qunused-arguments
4953     ;;
4954 esac
4955
4956 case $target_os in
4957     osf1)
4958         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4959     ;;
4960     plan9)
4961         add_cppflags -Dmain=plan9_main
4962     ;;
4963 esac
4964
4965 enable frame_thread_encoder
4966
4967 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4968
4969 check_deps $CONFIG_LIST       \
4970            $CONFIG_EXTRA      \
4971            $HAVE_LIST         \
4972            $ALL_COMPONENTS    \
4973
4974 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"
4975
4976
4977 if test $target_os = "haiku"; then
4978     disable memalign
4979     disable posix_memalign
4980 fi
4981
4982 ! enabled_any memalign posix_memalign aligned_malloc &&
4983     enabled_any $need_memalign && enable memalign_hack
4984
4985 # add_dep lib dep
4986 # -> enable ${lib}_deps_${dep}
4987 # -> add $dep to ${lib}_deps only once
4988 add_dep() {
4989     lib=$1
4990     dep=$2
4991     enabled "${lib}_deps_${dep}" && return 0
4992     enable  "${lib}_deps_${dep}"
4993     prepend "${lib}_deps" $dep
4994 }
4995
4996 # merge deps lib components
4997 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4998 merge_deps() {
4999     lib=$1
5000     shift
5001     for comp in $*; do
5002         enabled $comp || continue
5003         eval "dep=\"\$${comp}_deps\""
5004         for d in $dep; do
5005             add_dep $lib $d
5006         done
5007     done
5008 }
5009
5010 merge_deps libavfilter $FILTER_LIST
5011
5012 for thread in $THREADS_LIST; do
5013     if enabled $thread; then
5014         test -n "$thread_type" &&
5015             die "ERROR: Only one thread type must be selected." ||
5016             thread_type="$thread"
5017     fi
5018 done
5019
5020 echo "install prefix            $prefix"
5021 echo "source path               $source_path"
5022 echo "C compiler                $cc"
5023 echo "C library                 $libc_type"
5024 if test "$host_cc" != "$cc"; then
5025     echo "host C compiler           $host_cc"
5026     echo "host C library            $host_libc_type"
5027 fi
5028 echo "ARCH                      $arch ($cpu)"
5029 if test "$build_suffix" != ""; then
5030     echo "build suffix              $build_suffix"
5031 fi
5032 if test "$progs_suffix" != ""; then
5033     echo "progs suffix              $progs_suffix"
5034 fi
5035 if test "$extra_version" != ""; then
5036     echo "version string suffix     $extra_version"
5037 fi
5038 echo "big-endian                ${bigendian-no}"
5039 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5040 if enabled x86; then
5041     echo "${yasmexe}                      ${yasm-no}"
5042     echo "MMX enabled               ${mmx-no}"
5043     echo "MMXEXT enabled            ${mmxext-no}"
5044     echo "3DNow! enabled            ${amd3dnow-no}"
5045     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5046     echo "SSE enabled               ${sse-no}"
5047     echo "SSSE3 enabled             ${ssse3-no}"
5048     echo "AVX enabled               ${avx-no}"
5049     echo "XOP enabled               ${xop-no}"
5050     echo "FMA3 enabled              ${fma3-no}"
5051     echo "FMA4 enabled              ${fma4-no}"
5052     echo "i686 features enabled     ${i686-no}"
5053     echo "CMOV is fast              ${fast_cmov-no}"
5054     echo "EBX available             ${ebx_available-no}"
5055     echo "EBP available             ${ebp_available-no}"
5056 fi
5057 if enabled aarch64; then
5058     echo "NEON enabled              ${neon-no}"
5059     echo "VFP enabled               ${vfp-no}"
5060 fi
5061 if enabled arm; then
5062     echo "ARMv5TE enabled           ${armv5te-no}"
5063     echo "ARMv6 enabled             ${armv6-no}"
5064     echo "ARMv6T2 enabled           ${armv6t2-no}"
5065     echo "VFP enabled               ${vfp-no}"
5066     echo "NEON enabled              ${neon-no}"
5067     echo "THUMB enabled             ${thumb-no}"
5068 fi
5069 if enabled mips; then
5070     echo "MIPS FPU enabled          ${mipsfpu-no}"
5071     echo "MIPS32R2 enabled          ${mips32r2-no}"
5072     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
5073     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
5074 fi
5075 if enabled ppc; then
5076     echo "AltiVec enabled           ${altivec-no}"
5077     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5078     echo "dcbzl available           ${dcbzl-no}"
5079 fi
5080 echo "debug symbols             ${debug-no}"
5081 echo "strip symbols             ${stripping-no}"
5082 echo "optimize for size         ${small-no}"
5083 echo "optimizations             ${optimizations-no}"
5084 echo "static                    ${static-no}"
5085 echo "shared                    ${shared-no}"
5086 echo "postprocessing support    ${postproc-no}"
5087 echo "new filter support        ${avfilter-no}"
5088 echo "network support           ${network-no}"
5089 echo "threading support         ${thread_type-no}"
5090 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5091 echo "SDL support               ${sdl-no}"
5092 echo "opencl enabled            ${opencl-no}"
5093 echo "libzvbi enabled           ${libzvbi-no}"
5094 echo "texi2html enabled         ${texi2html-no}"
5095 echo "perl enabled              ${perl-no}"
5096 echo "pod2man enabled           ${pod2man-no}"
5097 echo "makeinfo enabled          ${makeinfo-no}"
5098 test -n "$random_seed" &&
5099     echo "random seed               ${random_seed}"
5100 echo
5101
5102 echo "External libraries:"
5103 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5104 echo
5105
5106 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5107     echo "Enabled ${type}s:"
5108     eval list=\$$(toupper $type)_LIST
5109     print_enabled '_*' $list | print_3_columns
5110     echo
5111 done
5112
5113 license="LGPL version 2.1 or later"
5114 if enabled nonfree; then
5115     license="nonfree and unredistributable"
5116 elif enabled gplv3; then
5117     license="GPL version 3 or later"
5118 elif enabled lgplv3; then
5119     license="LGPL version 3 or later"
5120 elif enabled gpl; then
5121     license="GPL version 2 or later"
5122 fi
5123
5124 echo "License: $license"
5125
5126 echo "Creating config.mak, config.h, and doc/config.texi..."
5127
5128 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5129
5130 enabled stripping || strip="echo skipping strip"
5131
5132 config_files="$TMPH config.mak doc/config.texi"
5133
5134 cat > config.mak <<EOF
5135 # Automatically generated by configure - do not modify!
5136 ifndef FFMPEG_CONFIG_MAK
5137 FFMPEG_CONFIG_MAK=1
5138 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5139 prefix=$prefix
5140 LIBDIR=\$(DESTDIR)$libdir
5141 SHLIBDIR=\$(DESTDIR)$shlibdir
5142 INCDIR=\$(DESTDIR)$incdir
5143 BINDIR=\$(DESTDIR)$bindir
5144 DATADIR=\$(DESTDIR)$datadir
5145 DOCDIR=\$(DESTDIR)$docdir
5146 MANDIR=\$(DESTDIR)$mandir
5147 SRC_PATH=$source_path
5148 ifndef MAIN_MAKEFILE
5149 SRC_PATH:=\$(SRC_PATH:.%=..%)
5150 endif
5151 CC_IDENT=$cc_ident
5152 ARCH=$arch
5153 CC=$cc
5154 CXX=$cxx
5155 AS=$as
5156 LD=$ld
5157 DEPCC=$dep_cc
5158 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5159 DEPAS=$as
5160 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5161 YASM=$yasmexe
5162 DEPYASM=$yasmexe
5163 AR=$ar
5164 ARFLAGS=$arflags
5165 AR_O=$ar_o
5166 RANLIB=$ranlib
5167 STRIP=$strip
5168 CP=cp -p
5169 LN_S=$ln_s
5170 CPPFLAGS=$CPPFLAGS
5171 CFLAGS=$CFLAGS
5172 CXXFLAGS=$CXXFLAGS
5173 ASFLAGS=$ASFLAGS
5174 AS_C=$AS_C
5175 AS_O=$AS_O
5176 CC_C=$CC_C
5177 CC_E=$CC_E
5178 CC_O=$CC_O
5179 CXX_C=$CXX_C
5180 CXX_O=$CXX_O
5181 LD_O=$LD_O
5182 LD_LIB=$LD_LIB
5183 LD_PATH=$LD_PATH
5184 DLLTOOL=$dlltool
5185 WINDRES=$windres
5186 DEPWINDRES=$dep_cc
5187 LDFLAGS=$LDFLAGS
5188 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5189 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5190 YASMFLAGS=$YASMFLAGS
5191 BUILDSUF=$build_suffix
5192 PROGSSUF=$progs_suffix
5193 FULLNAME=$FULLNAME
5194 LIBPREF=$LIBPREF
5195 LIBSUF=$LIBSUF
5196 LIBNAME=$LIBNAME
5197 SLIBPREF=$SLIBPREF
5198 SLIBSUF=$SLIBSUF
5199 EXESUF=$EXESUF
5200 EXTRA_VERSION=$extra_version
5201 CCDEP=$CCDEP
5202 CXXDEP=$CXXDEP
5203 CCDEP_FLAGS=$CCDEP_FLAGS
5204 ASDEP=$ASDEP
5205 ASDEP_FLAGS=$ASDEP_FLAGS
5206 CC_DEPFLAGS=$CC_DEPFLAGS
5207 AS_DEPFLAGS=$AS_DEPFLAGS
5208 HOSTCC=$host_cc
5209 HOSTLD=$host_ld
5210 HOSTCFLAGS=$host_cflags
5211 HOSTCPPFLAGS=$host_cppflags
5212 HOSTEXESUF=$HOSTEXESUF
5213 HOSTLDFLAGS=$host_ldflags
5214 HOSTLIBS=$host_libs
5215 DEPHOSTCC=$host_cc
5216 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5217 HOSTCCDEP=$HOSTCCDEP
5218 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5219 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5220 HOSTCC_C=$HOSTCC_C
5221 HOSTCC_O=$HOSTCC_O
5222 HOSTLD_O=$HOSTLD_O
5223 TARGET_EXEC=$target_exec $target_exec_args
5224 TARGET_PATH=$target_path
5225 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5226 CFLAGS-ffplay=$sdl_cflags
5227 ZLIB=$($ldflags_filter -lz)
5228 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5229 EXTRALIBS=$extralibs
5230 COMPAT_OBJS=$compat_objs
5231 EXEOBJS=$exeobjs
5232 INSTALL=$install
5233 LIBTARGET=${LIBTARGET}
5234 SLIBNAME=${SLIBNAME}
5235 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5236 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5237 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5238 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5239 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5240 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5241 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5242 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5243 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5244 NOREDZONE_FLAGS=$noredzone_flags
5245 EOF
5246
5247 get_version(){
5248     lcname=lib${1}
5249     name=$(toupper $lcname)
5250     file=$source_path/$lcname/version.h
5251     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5252     enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5253     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5254     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5255     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5256     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5257 }
5258
5259 map 'get_version $v' $LIBRARY_LIST
5260
5261 print_program_libs(){
5262     eval "program_libs=\$${1}_libs"
5263     eval echo "LIBS-${1}=${program_libs}" >> config.mak
5264 }
5265
5266 map 'print_program_libs $v' $PROGRAM_LIST
5267
5268 cat > $TMPH <<EOF
5269 /* Automatically generated by configure - do not modify! */
5270 #ifndef FFMPEG_CONFIG_H
5271 #define FFMPEG_CONFIG_H
5272 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5273 #define FFMPEG_LICENSE "$(c_escape $license)"
5274 #define CONFIG_THIS_YEAR 2014
5275 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5276 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5277 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5278 #define av_restrict $_restrict
5279 #define EXTERN_PREFIX "${extern_prefix}"
5280 #define EXTERN_ASM ${extern_prefix}
5281 #define BUILDSUF "$build_suffix"
5282 #define SLIBSUF "$SLIBSUF"
5283 #define HAVE_MMX2 HAVE_MMXEXT
5284 EOF
5285
5286 test -n "$assert_level" &&
5287     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5288
5289 test -n "$malloc_prefix" &&
5290     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5291
5292 if enabled yasm; then
5293     append config_files $TMPASM
5294     printf '' >$TMPASM
5295 fi
5296
5297 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5298
5299
5300 mkdir -p doc
5301 echo "@c auto-generated by configure" > doc/config.texi
5302
5303 print_config ARCH_   "$config_files" $ARCH_LIST
5304 print_config HAVE_   "$config_files" $HAVE_LIST
5305 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5306                                      $CONFIG_EXTRA      \
5307                                      $ALL_COMPONENTS    \
5308
5309 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5310 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5311
5312 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5313 cp_if_changed $TMPH config.h
5314 touch .config
5315
5316 enabled yasm && cp_if_changed $TMPASM config.asm
5317
5318 cat > $TMPH <<EOF
5319 /* Generated by ffconf */
5320 #ifndef AVUTIL_AVCONFIG_H
5321 #define AVUTIL_AVCONFIG_H
5322 EOF
5323
5324 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5325
5326 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5327
5328 cp_if_changed $TMPH libavutil/avconfig.h
5329
5330 if test -n "$WARNINGS"; then
5331     printf "\n$WARNINGS"
5332     enabled fatal_warnings && exit 1
5333 fi
5334
5335 # build pkg-config files
5336
5337 pkgconfig_generate(){
5338     name=$1
5339     shortname=${name#lib}${build_suffix}
5340     comment=$2
5341     version=$3
5342     libs=$4
5343     requires=$5
5344     enabled ${name#lib} || return 0
5345     mkdir -p $name
5346     cat <<EOF > $name/$name${build_suffix}.pc
5347 prefix=$prefix
5348 exec_prefix=\${prefix}
5349 libdir=$libdir
5350 includedir=$incdir
5351
5352 Name: $name
5353 Description: $comment
5354 Version: $version
5355 Requires: $(enabled shared || echo $requires)
5356 Requires.private: $(enabled shared && echo $requires)
5357 Conflicts:
5358 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5359 Libs.private: $(enabled shared && echo $libs)
5360 Cflags: -I\${includedir}
5361 EOF
5362
5363 mkdir -p doc/examples/pc-uninstalled
5364 includedir=${source_path}
5365 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5366     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5367 prefix=
5368 exec_prefix=
5369 libdir=\${pcfiledir}/../../../$name
5370 includedir=${includedir}
5371
5372 Name: $name
5373 Description: $comment
5374 Version: $version
5375 Requires: $requires
5376 Conflicts:
5377 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5378 Cflags: -I\${includedir}
5379 EOF
5380 }
5381
5382 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5383 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
5384 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
5385 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
5386 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
5387 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
5388 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
5389 lavfi_libs=${lavfi_libs%, }
5390
5391 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
5392 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
5393
5394 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
5395 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5396 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
5397 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
5398 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
5399 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5400 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5401 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
5402 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"