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

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