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   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-ffmpeg         disable ffmpeg build
 109   --disable-ffplay         disable ffplay build
 110   --disable-ffprobe        disable ffprobe build
 111   --disable-ffserver       disable ffserver build
 112
 113 Documentation options:
 114   --disable-doc            do not build documentation
 115   --disable-htmlpages      do not build HTML documentation pages
 116   --disable-manpages       do not build man documentation pages
 117   --disable-podpages       do not build POD documentation pages
 118   --disable-txtpages       do not build text documentation pages
 119
 120 Component options:
 121   --disable-avdevice       disable libavdevice build
 122   --disable-avcodec        disable libavcodec build
 123   --disable-avformat       disable libavformat build
 124   --disable-avutil         disable libavutil build
 125   --disable-swresample     disable libswresample build
 126   --disable-swscale        disable libswscale build
 127   --disable-postproc       disable libpostproc build
 128   --disable-avfilter       disable libavfilter build
 129   --enable-avresample      enable libavresample build [no]
 130   --disable-pthreads       disable pthreads [auto]
 131   --disable-w32threads     disable Win32 threads [auto]
 132   --disable-os2threads     disable OS/2 threads [auto]
 133   --disable-network        disable network support [no]
 134   --disable-dct            disable DCT code
 135   --disable-dwt            disable DWT code
 136   --disable-error-resilience disable error resilience code
 137   --disable-lsp            disable LSP code
 138   --disable-lzo            disable LZO decoder code
 139   --disable-mdct           disable MDCT code
 140   --disable-rdft           disable RDFT code
 141   --disable-fft            disable FFT code
 142
 143 Hardware accelerators:
 144   --disable-dxva2          disable DXVA2 code [autodetect]
 145   --disable-vaapi          disable VAAPI code [autodetect]
 146   --enable-vda             enable VDA code
 147   --disable-vdpau          disable VDPAU code [autodetect]
 148
 149 Individual component options:
 150   --disable-everything     disable all components listed below
 151   --disable-encoder=NAME   disable encoder NAME
 152   --enable-encoder=NAME    enable encoder NAME
 153   --disable-encoders       disable all encoders
 154   --disable-decoder=NAME   disable decoder NAME
 155   --enable-decoder=NAME    enable decoder NAME
 156   --disable-decoders       disable all decoders
 157   --disable-hwaccel=NAME   disable hwaccel NAME
 158   --enable-hwaccel=NAME    enable hwaccel NAME
 159   --disable-hwaccels       disable all hwaccels
 160   --disable-muxer=NAME     disable muxer NAME
 161   --enable-muxer=NAME      enable muxer NAME
 162   --disable-muxers         disable all muxers
 163   --disable-demuxer=NAME   disable demuxer NAME
 164   --enable-demuxer=NAME    enable demuxer NAME
 165   --disable-demuxers       disable all demuxers
 166   --enable-parser=NAME     enable parser NAME
 167   --disable-parser=NAME    disable parser NAME
 168   --disable-parsers        disable all parsers
 169   --enable-bsf=NAME        enable bitstream filter NAME
 170   --disable-bsf=NAME       disable bitstream filter NAME
 171   --disable-bsfs           disable all bitstream filters
 172   --enable-protocol=NAME   enable protocol NAME
 173   --disable-protocol=NAME  disable protocol NAME
 174   --disable-protocols      disable all protocols
 175   --enable-indev=NAME      enable input device NAME
 176   --disable-indev=NAME     disable input device NAME
 177   --disable-indevs         disable input devices
 178   --enable-outdev=NAME     enable output device NAME
 179   --disable-outdev=NAME    disable output device NAME
 180   --disable-outdevs        disable output devices
 181   --disable-devices        disable all devices
 182   --enable-filter=NAME     enable filter NAME
 183   --disable-filter=NAME    disable filter NAME
 184   --disable-filters        disable all filters
 185
 186 External library support:
 187   --enable-avisynth        enable reading of AVISynth script files [no]
 188   --disable-bzlib          disable bzlib [autodetect]
 189   --enable-fontconfig      enable fontconfig
 190   --enable-frei0r          enable frei0r video filtering
 191   --enable-gnutls          enable gnutls [no]
 192   --disable-iconv          disable iconv [autodetect]
 193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 194   --enable-libass          enable libass subtitles rendering [no]
 195   --enable-libbluray       enable BluRay reading using libbluray [no]
 196   --enable-libcaca         enable textual display using libcaca
 197   --enable-libcelt         enable CELT decoding via libcelt [no]
 198   --enable-libcdio         enable audio CD grabbing with libcdio
 199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 200                            and libraw1394 [no]
 201   --enable-libfaac         enable AAC encoding via libfaac [no]
 202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 204   --enable-libfreetype     enable libfreetype [no]
 205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 208   --enable-libmodplug      enable ModPlug via libmodplug [no]
 209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 210   --enable-libnut          enable NUT (de)muxing via libnut,
 211                            native (de)muxer exists [no]
 212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 214   --enable-libopencv       enable video filtering via libopencv [no]
 215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 216   --enable-libopus         enable Opus decoding via libopus [no]
 217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 218   --enable-libquvi         enable quvi input via libquvi [no]
 219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 222   --enable-libsoxr         enable Include libsoxr resampling [no]
 223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 225   --enable-libtheora       enable Theora encoding via libtheora [no]
 226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 229   --enable-libvidstab      enable video stabilization using vid.stab [no]
 230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 233                            native implementation exists [no]
 234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 235   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 236   --enable-libx264         enable H.264 encoding via x264 [no]
 237   --enable-libxavs         enable AVS encoding via xavs [no]
 238   --enable-libxvid         enable Xvid encoding via xvidcore,
 239                            native MPEG-4/Xvid encoder exists [no]
 240   --enable-libzmq          enable message passing via libzmq [no]
 241   --enable-openal          enable OpenAL 1.1 capture support [no]
 242   --enable-opencl          enable OpenCL code
 243   --enable-openssl         enable openssl [no]
 244   --enable-x11grab         enable X11 grabbing [no]
 245   --disable-zlib           disable zlib [autodetect]
 246
 247 Advanced options (experts only):
 248   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 249   --enable-cross-compile   assume a cross-compiler is used
 250   --sysroot=PATH           root of cross-build tree
 251   --sysinclude=PATH        location of cross-build system headers
 252   --target-os=OS           compiler targets OS [$target_os]
 253   --target-exec=CMD        command to run executables on target
 254   --target-path=DIR        path to view of build directory on target
 255   --target-samples=DIR     path to samples directory on target
 256   --toolchain=NAME         set tool defaults according to NAME
 257   --nm=NM                  use nm tool NM [$nm_default]
 258   --ar=AR                  use archive tool AR [$ar_default]
 259   --as=AS                  use assembler AS [$as_default]
 260   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 261   --cc=CC                  use C compiler CC [$cc_default]
 262   --cxx=CXX                use C compiler CXX [$cxx_default]
 263   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 264   --ld=LD                  use linker LD [$ld_default]
 265   --host-cc=HOSTCC         use host C compiler HOSTCC
 266   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 267   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 268   --host-ld=HOSTLD         use host linker HOSTLD
 269   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 270   --host-libs=HLIBS        use libs HLIBS when linking for host
 271   --host-os=OS             compiler host OS [$target_os]
 272   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 273   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 274   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 275   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 276   --extra-version=STRING   version string suffix []
 277   --optflags=OPTFLAGS      override optimization-related compiler flags
 278   --build-suffix=SUFFIX    library name suffix []
 279   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 280   --progs-suffix=SUFFIX    program name suffix []
 281   --arch=ARCH              select architecture [$arch]
 282   --cpu=CPU                select the minimum required CPU (affects
 283                            instruction selection, may crash on older CPUs)
 284   --enable-pic             build position-independent code
 285   --enable-sram            allow use of on-chip SRAM
 286   --enable-thumb           compile for Thumb instruction set
 287   --disable-symver         disable symbol versioning
 288   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 289   --disable-safe-bitstream-reader
 290                            disable buffer boundary checking in bitreaders
 291                            (faster, but may crash)
 292   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 293   --enable-lto             use link-time optimization
 294
 295 Optimization options (experts only):
 296   --disable-asm            disable all assembler optimizations
 297   --disable-altivec        disable AltiVec optimizations
 298   --disable-amd3dnow       disable 3DNow! optimizations
 299   --disable-amd3dnowext    disable 3DNow! extended optimizations
 300   --disable-mmx            disable MMX optimizations
 301   --disable-mmxext         disable MMXEXT optimizations
 302   --disable-sse            disable SSE optimizations
 303   --disable-sse2           disable SSE2 optimizations
 304   --disable-sse3           disable SSE3 optimizations
 305   --disable-ssse3          disable SSSE3 optimizations
 306   --disable-sse4           disable SSE4 optimizations
 307   --disable-sse42          disable SSE4.2 optimizations
 308   --disable-avx            disable AVX optimizations
 309   --disable-fma4           disable FMA4 optimizations
 310   --disable-armv5te        disable armv5te optimizations
 311   --disable-armv6          disable armv6 optimizations
 312   --disable-armv6t2        disable armv6t2 optimizations
 313   --disable-vfp            disable VFP optimizations
 314   --disable-neon           disable NEON optimizations
 315   --disable-vis            disable VIS optimizations
 316   --disable-inline-asm     disable use of inline assembler
 317   --disable-yasm           disable use of yasm assembler
 318   --disable-mips32r2       disable MIPS32R2 optimizations
 319   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 320   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 321   --disable-mipsfpu        disable floating point MIPS optimizations
 322   --disable-fast-unaligned consider unaligned accesses slow
 323
 324 Developer options (useful when working on FFmpeg itself):
 325   --disable-debug          disable debugging symbols
 326   --enable-debug=LEVEL     set the debug level [$debuglevel]
 327   --disable-optimizations  disable compiler optimizations
 328   --enable-extra-warnings  enable more compiler warnings
 329   --disable-stripping      disable stripping of executables and shared libraries
 330   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 331                            2 causes a slowdown at runtime.
 332   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 333   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 334                            leaks and errors, using the specified valgrind binary.
 335                            Cannot be combined with --target-exec
 336   --enable-ftrapv          Trap arithmetic overflows
 337   --samples=PATH           location of test samples for FATE, if not set use
 338                            \$FATE_SAMPLES at make invocation time.
 339   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 340                            should be used only for debugging purposes)
 341   --enable-random          randomly enable/disable components
 342   --disable-random
 343   --enable-random=LIST     randomly enable/disable specific components or
 344   --disable-random=LIST    component groups. LIST is a comma-separated list
 345                            of NAME[:PROB] entries where NAME is a component
 346                            (group) and PROB the probability associated with
 347                            NAME (default 0.5).
 348   --random-seed=VALUE      seed value for --enable/disable-random
 349
 350 NOTE: Object files are built at the place where configure is launched.
 351 EOF
 352   exit 0
 353 }
 354
 355 quotes='""'
 356
 357 log(){
 358     echo "$@" >> $logfile
 359 }
 360
 361 log_file(){
 362     log BEGIN $1
 363     pr -n -t $1 >> $logfile
 364     log END $1
 365 }
 366
 367 echolog(){
 368     log "$@"
 369     echo "$@"
 370 }
 371
 372 warn(){
 373     log "WARNING: $*"
 374     WARNINGS="${WARNINGS}WARNING: $*\n"
 375 }
 376
 377 die(){
 378     echolog "$@"
 379     cat <<EOF
 380
 381 If you think configure made a mistake, make sure you are using the latest
 382 version from Git.  If the latest version fails, report the problem to the
 383 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 384 EOF
 385     if disabled logging; then
 386         cat <<EOF
 387 Rerun configure with logging enabled (do not use --disable-logging), and
 388 include the log this produces with your report.
 389 EOF
 390     else
 391         cat <<EOF
 392 Include the log file "$logfile" produced by configure as this will help
 393 solving the problem.
 394 EOF
 395     fi
 396     exit 1
 397 }
 398
 399 # Avoid locale weirdness, besides we really just want to translate ASCII.
 400 toupper(){
 401     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 402 }
 403
 404 tolower(){
 405     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 406 }
 407
 408 c_escape(){
 409     echo "$*" | sed 's/["\\]/\\\0/g'
 410 }
 411
 412 sh_quote(){
 413     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 414     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 415     echo "$v"
 416 }
 417
 418 cleanws(){
 419     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 420 }
 421
 422 filter(){
 423     pat=$1
 424     shift
 425     for v; do
 426         eval "case $v in $pat) echo $v ;; esac"
 427     done
 428 }
 429
 430 filter_out(){
 431     pat=$1
 432     shift
 433     for v; do
 434         eval "case $v in $pat) ;; *) echo $v ;; esac"
 435     done
 436 }
 437
 438 map(){
 439     m=$1
 440     shift
 441     for v; do eval $m; done
 442 }
 443
 444 add_suffix(){
 445     suffix=$1
 446     shift
 447     for v; do echo ${v}${suffix}; done
 448 }
 449
 450 set_all(){
 451     value=$1
 452     shift
 453     for var in $*; do
 454         eval $var=$value
 455     done
 456 }
 457
 458 set_weak(){
 459     value=$1
 460     shift
 461     for var; do
 462         eval : \${$var:=$value}
 463     done
 464 }
 465
 466 sanitize_var_name(){
 467     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 468 }
 469
 470 set_safe(){
 471     var=$1
 472     shift
 473     eval $(sanitize_var_name "$var")='$*'
 474 }
 475
 476 get_safe(){
 477     eval echo \$$(sanitize_var_name "$1")
 478 }
 479
 480 pushvar(){
 481     for pvar in $*; do
 482         eval level=\${${pvar}_level:=0}
 483         eval ${pvar}_${level}="\$$pvar"
 484         eval ${pvar}_level=$(($level+1))
 485     done
 486 }
 487
 488 popvar(){
 489     for pvar in $*; do
 490         eval level=\${${pvar}_level:-0}
 491         test $level = 0 && continue
 492         eval level=$(($level-1))
 493         eval $pvar="\${${pvar}_${level}}"
 494         eval ${pvar}_level=$level
 495         eval unset ${pvar}_${level}
 496     done
 497 }
 498
 499 enable(){
 500     set_all yes $*
 501 }
 502
 503 disable(){
 504     set_all no $*
 505 }
 506
 507 enable_weak(){
 508     set_weak yes $*
 509 }
 510
 511 disable_weak(){
 512     set_weak no $*
 513 }
 514
 515 enable_safe(){
 516     for var; do
 517         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 518     done
 519 }
 520
 521 disable_safe(){
 522     for var; do
 523         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 524     done
 525 }
 526
 527 do_enable_deep(){
 528     for var; do
 529         enabled $var && continue
 530         eval sel="\$${var}_select"
 531         eval sgs="\$${var}_suggest"
 532         pushvar var sgs
 533         enable_deep $sel
 534         popvar sgs
 535         enable_deep_weak $sgs
 536         popvar var
 537     done
 538 }
 539
 540 enable_deep(){
 541     do_enable_deep $*
 542     enable $*
 543 }
 544
 545 enable_deep_weak(){
 546     for var; do
 547         disabled $var && continue
 548         pushvar var
 549         do_enable_deep $var
 550         popvar var
 551         enable_weak $var
 552     done
 553 }
 554
 555 enabled(){
 556     test "${1#!}" = "$1" && op== || op=!=
 557     eval test "x\$${1#!}" $op "xyes"
 558 }
 559
 560 disabled(){
 561     test "${1#!}" = "$1" && op== || op=!=
 562     eval test "x\$${1#!}" $op "xno"
 563 }
 564
 565 enabled_all(){
 566     for opt; do
 567         enabled $opt || return 1
 568     done
 569 }
 570
 571 disabled_all(){
 572     for opt; do
 573         disabled $opt || return 1
 574     done
 575 }
 576
 577 enabled_any(){
 578     for opt; do
 579         enabled $opt && return 0
 580     done
 581 }
 582
 583 disabled_any(){
 584     for opt; do
 585         disabled $opt && return 0
 586     done
 587     return 1
 588 }
 589
 590 set_default(){
 591     for opt; do
 592         eval : \${$opt:=\$${opt}_default}
 593     done
 594 }
 595
 596 is_in(){
 597     value=$1
 598     shift
 599     for var in $*; do
 600         [ $var = $value ] && return 0
 601     done
 602     return 1
 603 }
 604
 605 do_check_deps(){
 606     for cfg; do
 607         cfg="${cfg#!}"
 608         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 609         disabled ${cfg}_checking && continue
 610         enable ${cfg}_checking
 611         append allopts $cfg
 612
 613         eval dep_all="\$${cfg}_deps"
 614         eval dep_any="\$${cfg}_deps_any"
 615         eval dep_sel="\$${cfg}_select"
 616         eval dep_sgs="\$${cfg}_suggest"
 617         eval dep_ifa="\$${cfg}_if"
 618         eval dep_ifn="\$${cfg}_if_any"
 619
 620         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 621         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 622         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 623
 624         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 625         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 626         enabled_all  $dep_all || disable $cfg
 627         enabled_any  $dep_any || disable $cfg
 628         disabled_any $dep_sel && disable $cfg
 629
 630         if enabled $cfg; then
 631             enable_deep $dep_sel
 632             enable_deep_weak $dep_sgs
 633         fi
 634
 635         disable ${cfg}_checking
 636     done
 637 }
 638
 639 check_deps(){
 640     unset allopts
 641
 642     do_check_deps "$@"
 643
 644     for cfg in $allopts; do
 645         enabled $cfg || continue
 646         eval dep_extralibs="\$${cfg}_extralibs"
 647         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 648     done
 649 }
 650
 651 print_config(){
 652     pfx=$1
 653     files=$2
 654     shift 2
 655     map 'eval echo "$v \${$v:-no}"' "$@" |
 656     awk "BEGIN { split(\"$files\", files) }
 657         {
 658             c = \"$pfx\" toupper(\$1);
 659             v = \$2;
 660             sub(/yes/, 1, v);
 661             sub(/no/,  0, v);
 662             for (f in files) {
 663                 file = files[f];
 664                 if (file ~ /\\.h\$/) {
 665                     printf(\"#define %s %d\\n\", c, v) >>file;
 666                 } else if (file ~ /\\.asm\$/) {
 667                     printf(\"%%define %s %d\\n\", c, v) >>file;
 668                 } else if (file ~ /\\.mak\$/) {
 669                     n = -v ? \"\" : \"!\";
 670                     printf(\"%s%s=yes\\n\", n, c) >>file;
 671                 } else if (file ~ /\\.texi\$/) {
 672                     pre = -v ? \"\" : \"@c \";
 673                     yesno = \$2;
 674                     c2 = tolower(c);
 675                     gsub(/_/, \"-\", c2);
 676                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 677                 }
 678             }
 679         }"
 680 }
 681
 682 print_enabled(){
 683     suf=$1
 684     shift
 685     for v; do
 686         enabled $v && printf "%s\n" ${v%$suf};
 687     done
 688 }
 689
 690 append(){
 691     var=$1
 692     shift
 693     eval "$var=\"\$$var $*\""
 694 }
 695
 696 prepend(){
 697     var=$1
 698     shift
 699     eval "$var=\"$* \$$var\""
 700 }
 701
 702 add_cppflags(){
 703     append CPPFLAGS "$@"
 704 }
 705
 706 add_cflags(){
 707     append CFLAGS $($cflags_filter "$@")
 708 }
 709
 710 add_cxxflags(){
 711     append CXXFLAGS $($cflags_filter "$@")
 712 }
 713
 714 add_asflags(){
 715     append ASFLAGS $($asflags_filter "$@")
 716 }
 717
 718 add_ldflags(){
 719     append LDFLAGS $($ldflags_filter "$@")
 720 }
 721
 722 add_extralibs(){
 723     prepend extralibs $($ldflags_filter "$@")
 724 }
 725
 726 add_host_cppflags(){
 727     append host_cppflags "$@"
 728 }
 729
 730 add_host_cflags(){
 731     append host_cflags $($host_cflags_filter "$@")
 732 }
 733
 734 add_host_ldflags(){
 735     append host_ldflags $($host_ldflags_filter "$@")
 736 }
 737
 738 add_compat(){
 739     append compat_objs $1
 740     shift
 741     map 'add_cppflags -D$v' "$@"
 742 }
 743
 744 check_cmd(){
 745     log "$@"
 746     "$@" >> $logfile 2>&1
 747 }
 748
 749 cc_o(){
 750     eval printf '%s\\n' $CC_O
 751 }
 752
 753 cc_e(){
 754     eval printf '%s\\n' $CC_E
 755 }
 756
 757 check_cc(){
 758     log check_cc "$@"
 759     cat > $TMPC
 760     log_file $TMPC
 761     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 762 }
 763
 764 check_cxx(){
 765     log check_cxx "$@"
 766     cat > $TMPCPP
 767     log_file $TMPCPP
 768     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 769 }
 770
 771 check_cpp(){
 772     log check_cpp "$@"
 773     cat > $TMPC
 774     log_file $TMPC
 775     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 776 }
 777
 778 as_o(){
 779     eval printf '%s\\n' $AS_O
 780 }
 781
 782 check_as(){
 783     log check_as "$@"
 784     cat > $TMPS
 785     log_file $TMPS
 786     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 787 }
 788
 789 check_inline_asm(){
 790     log check_inline_asm "$@"
 791     name="$1"
 792     code="$2"
 793     shift 2
 794     disable $name
 795     check_cc "$@" <<EOF && enable $name
 796 void foo(void){ __asm__ volatile($code); }
 797 EOF
 798 }
 799
 800 check_insn(){
 801     log check_insn "$@"
 802     check_inline_asm ${1}_inline "\"$2\""
 803     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 804 }
 805
 806 check_yasm(){
 807     log check_yasm "$@"
 808     echo "$1" > $TMPS
 809     log_file $TMPS
 810     shift 1
 811     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 812 }
 813
 814 ld_o(){
 815     eval printf '%s\\n' $LD_O
 816 }
 817
 818 check_ld(){
 819     log check_ld "$@"
 820     type=$1
 821     shift 1
 822     flags=$(filter_out '-l*|*.so' $@)
 823     libs=$(filter '-l*|*.so' $@)
 824     check_$type $($cflags_filter $flags) || return
 825     flags=$($ldflags_filter $flags)
 826     libs=$($ldflags_filter $libs)
 827     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 828 }
 829
 830 check_code(){
 831     log check_code "$@"
 832     check=$1
 833     headers=$2
 834     code=$3
 835     shift 3
 836     {
 837         for hdr in $headers; do
 838             echo "#include <$hdr>"
 839         done
 840         echo "int main(void) { $code; return 0; }"
 841     } | check_$check "$@"
 842 }
 843
 844 check_cppflags(){
 845     log check_cppflags "$@"
 846     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 847 int x;
 848 EOF
 849 }
 850
 851 check_cflags(){
 852     log check_cflags "$@"
 853     set -- $($cflags_filter "$@")
 854     check_cc "$@" <<EOF && append CFLAGS "$@"
 855 int x;
 856 EOF
 857 }
 858
 859 check_cxxflags(){
 860     log check_cxxflags "$@"
 861     set -- $($cflags_filter "$@")
 862     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 863 int x;
 864 EOF
 865 }
 866
 867 test_ldflags(){
 868     log test_ldflags "$@"
 869     check_ld "cc" "$@" <<EOF
 870 int main(void){ return 0; }
 871 EOF
 872 }
 873
 874 check_ldflags(){
 875     log check_ldflags "$@"
 876     test_ldflags "$@" && add_ldflags "$@"
 877 }
 878
 879 check_header(){
 880     log check_header "$@"
 881     header=$1
 882     shift
 883     disable_safe $header
 884     check_cpp "$@" <<EOF && enable_safe $header
 885 #include <$header>
 886 int x;
 887 EOF
 888 }
 889
 890 check_func(){
 891     log check_func "$@"
 892     func=$1
 893     shift
 894     disable $func
 895     check_ld "cc" "$@" <<EOF && enable $func
 896 extern int $func();
 897 int main(void){ $func(); }
 898 EOF
 899 }
 900
 901 check_mathfunc(){
 902     log check_mathfunc "$@"
 903     func=$1
 904     narg=$2
 905     shift 2
 906     test $narg = 2 && args="f, g" || args="f"
 907     disable $func
 908     check_ld "cc" "$@" <<EOF && enable $func
 909 #include <math.h>
 910 float foo(float f, float g) { return $func($args); }
 911 int main(void){ return (int) foo; }
 912 EOF
 913 }
 914
 915 check_func_headers(){
 916     log check_func_headers "$@"
 917     headers=$1
 918     funcs=$2
 919     shift 2
 920     {
 921         for hdr in $headers; do
 922             echo "#include <$hdr>"
 923         done
 924         for func in $funcs; do
 925             echo "long check_$func(void) { return (long) $func; }"
 926         done
 927         echo "int main(void) { return 0; }"
 928     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 929 }
 930
 931 check_class_headers_cpp(){
 932     log check_class_headers_cpp "$@"
 933     headers=$1
 934     classes=$2
 935     shift 2
 936     {
 937         for hdr in $headers; do
 938             echo "#include <$hdr>"
 939         done
 940         echo "int main(void) { "
 941         i=1
 942         for class in $classes; do
 943             echo "$class obj$i;"
 944             i=$(expr $i + 1)
 945         done
 946         echo "return 0; }"
 947     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 948 }
 949
 950 check_cpp_condition(){
 951     log check_cpp_condition "$@"
 952     header=$1
 953     condition=$2
 954     shift 2
 955     check_cpp "$@" <<EOF
 956 #include <$header>
 957 #if !($condition)
 958 #error "unsatisfied condition: $condition"
 959 #endif
 960 EOF
 961 }
 962
 963 check_lib(){
 964     log check_lib "$@"
 965     header="$1"
 966     func="$2"
 967     shift 2
 968     check_header $header && check_func $func "$@" && add_extralibs "$@"
 969 }
 970
 971 check_lib2(){
 972     log check_lib2 "$@"
 973     headers="$1"
 974     funcs="$2"
 975     shift 2
 976     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 977 }
 978
 979 check_lib_cpp(){
 980     log check_lib_cpp "$@"
 981     headers="$1"
 982     classes="$2"
 983     shift 2
 984     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 985 }
 986
 987 check_pkg_config(){
 988     log check_pkg_config "$@"
 989     pkg="$1"
 990     headers="$2"
 991     funcs="$3"
 992     shift 3
 993     $pkg_config --exists $pkg 2>/dev/null || return
 994     pkg_cflags=$($pkg_config --cflags $pkg)
 995     pkg_libs=$($pkg_config --libs $pkg)
 996     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 997         set_safe ${pkg}_cflags $pkg_cflags   &&
 998         set_safe ${pkg}_libs   $pkg_libs
 999 }
1000
1001 check_exec(){
1002     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1003 }
1004
1005 check_exec_crash(){
1006     code=$(cat)
1007
1008     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1009     # are safe but may not be available everywhere.  Thus we use
1010     # raise(SIGTERM) instead.  The check is run in a subshell so we
1011     # can redirect the "Terminated" message from the shell.  SIGBUS
1012     # is not defined by standard C so it is used conditionally.
1013
1014     (check_exec "$@") >> $logfile 2>&1 <<EOF
1015 #include <signal.h>
1016 static void sighandler(int sig){
1017     raise(SIGTERM);
1018 }
1019 int foo(void){
1020     $code
1021 }
1022 int (*func_ptr)(void) = foo;
1023 int main(void){
1024     signal(SIGILL, sighandler);
1025     signal(SIGFPE, sighandler);
1026     signal(SIGSEGV, sighandler);
1027 #ifdef SIGBUS
1028     signal(SIGBUS, sighandler);
1029 #endif
1030     return func_ptr();
1031 }
1032 EOF
1033 }
1034
1035 check_type(){
1036     log check_type "$@"
1037     headers=$1
1038     type=$2
1039     shift 2
1040     disable_safe "$type"
1041     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1042 }
1043
1044 check_struct(){
1045     log check_struct "$@"
1046     headers=$1
1047     struct=$2
1048     member=$3
1049     shift 3
1050     disable_safe "${struct}_${member}"
1051     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1052         enable_safe "${struct}_${member}"
1053 }
1054
1055 check_builtin(){
1056     log check_builtin "$@"
1057     name=$1
1058     headers=$2
1059     builtin=$3
1060     shift 3
1061     disable "$name"
1062     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1063 }
1064
1065 require(){
1066     name="$1"
1067     header="$2"
1068     func="$3"
1069     shift 3
1070     check_lib $header $func "$@" || die "ERROR: $name not found"
1071 }
1072
1073 require2(){
1074     name="$1"
1075     headers="$2"
1076     func="$3"
1077     shift 3
1078     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1079 }
1080
1081 require_cpp(){
1082     name="$1"
1083     headers="$2"
1084     classes="$3"
1085     shift 3
1086     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1087 }
1088
1089 require_pkg_config(){
1090     pkg="$1"
1091     check_pkg_config "$@" || die "ERROR: $pkg not found"
1092     add_cflags    $(get_safe ${pkg}_cflags)
1093     add_extralibs $(get_safe ${pkg}_libs)
1094 }
1095
1096 hostcc_o(){
1097     eval printf '%s\\n' $HOSTCC_O
1098 }
1099
1100 check_host_cc(){
1101     log check_host_cc "$@"
1102     cat > $TMPC
1103     log_file $TMPC
1104     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1105 }
1106
1107 check_host_cppflags(){
1108     log check_host_cppflags "$@"
1109     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1110 int x;
1111 EOF
1112 }
1113
1114 check_host_cflags(){
1115     log check_host_cflags "$@"
1116     set -- $($host_cflags_filter "$@")
1117     check_host_cc "$@" <<EOF && append host_cflags "$@"
1118 int x;
1119 EOF
1120 }
1121
1122 apply(){
1123     file=$1
1124     shift
1125     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1126 }
1127
1128 cp_if_changed(){
1129     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1130     mkdir -p "$(dirname $2)"
1131     $cp_f "$1" "$2"
1132 }
1133
1134 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1135 # system-dependent things.
1136
1137 COMPONENT_LIST="
1138     bsfs
1139     decoders
1140     demuxers
1141     encoders
1142     filters
1143     hwaccels
1144     indevs
1145     muxers
1146     outdevs
1147     parsers
1148     protocols
1149 "
1150
1151 EXTERNAL_LIBRARY_LIST="
1152     avisynth
1153     bzlib
1154     crystalhd
1155     fontconfig
1156     frei0r
1157     gnutls
1158     iconv
1159     libaacplus
1160     libass
1161     libbluray
1162     libcaca
1163     libcdio
1164     libcelt
1165     libdc1394
1166     libfaac
1167     libfdk_aac
1168     libflite
1169     libfreetype
1170     libgsm
1171     libiec61883
1172     libilbc
1173     libmodplug
1174     libmp3lame
1175     libnut
1176     libopencore_amrnb
1177     libopencore_amrwb
1178     libopencv
1179     libopenjpeg
1180     libopus
1181     libpulse
1182     libquvi
1183     librtmp
1184     libschroedinger
1185     libshine
1186     libsoxr
1187     libspeex
1188     libstagefright_h264
1189     libtheora
1190     libtwolame
1191     libutvideo
1192     libv4l2
1193     libvidstab
1194     libvo_aacenc
1195     libvo_amrwbenc
1196     libvorbis
1197     libvpx
1198     libwavpack
1199     libx264
1200     libxavs
1201     libxvid
1202     libzmq
1203     openal
1204     opencl
1205     openssl
1206     x11grab
1207     zlib
1208 "
1209
1210 DOCUMENT_LIST="
1211     doc
1212     htmlpages
1213     manpages
1214     podpages
1215     txtpages
1216 "
1217
1218 HWACCEL_LIST="
1219     dxva2
1220     vaapi
1221     vda
1222     vdpau
1223 "
1224
1225 LIBRARY_LIST="
1226     avcodec
1227     avdevice
1228     avfilter
1229     avformat
1230     avresample
1231     avutil
1232     postproc
1233     swresample
1234     swscale
1235 "
1236
1237 PROGRAM_LIST="
1238     ffplay
1239     ffprobe
1240     ffserver
1241     ffmpeg
1242 "
1243
1244 CONFIG_LIST="
1245     $COMPONENT_LIST
1246     $DOCUMENT_LIST
1247     $EXTERNAL_LIBRARY_LIST
1248     $HWACCEL_LIST
1249     $LIBRARY_LIST
1250     $PROGRAM_LIST
1251     dct
1252     dwt
1253     error_resilience
1254     fast_unaligned
1255     fft
1256     ftrapv
1257     gpl
1258     gray
1259     hardcoded_tables
1260     incompatible_fork_abi
1261     lsp
1262     lzo
1263     mdct
1264     memalign_hack
1265     memory_poisoning
1266     network
1267     nonfree
1268     pic
1269     rdft
1270     runtime_cpudetect
1271     safe_bitstream_reader
1272     shared
1273     small
1274     sram
1275     static
1276     swscale_alpha
1277     thumb
1278     version3
1279     xmm_clobber_test
1280 "
1281
1282 THREADS_LIST='
1283     pthreads
1284     w32threads
1285     os2threads
1286 '
1287
1288 ATOMICS_LIST='
1289     atomics_gcc
1290     atomics_suncc
1291     atomics_win32
1292 '
1293
1294 ARCH_LIST='
1295     aarch64
1296     alpha
1297     arm
1298     avr32
1299     avr32_ap
1300     avr32_uc
1301     bfin
1302     ia64
1303     m68k
1304     mips
1305     mips64
1306     parisc
1307     ppc
1308     ppc64
1309     s390
1310     sh4
1311     sparc
1312     sparc64
1313     tilegx
1314     tilepro
1315     tomi
1316     x86
1317     x86_32
1318     x86_64
1319 '
1320
1321 ARCH_EXT_LIST_ARM='
1322     armv5te
1323     armv6
1324     armv6t2
1325     neon
1326     vfp
1327     vfpv3
1328 '
1329
1330 ARCH_EXT_LIST_X86='
1331     amd3dnow
1332     amd3dnowext
1333     avx
1334     fma4
1335     mmx
1336     mmxext
1337     sse
1338     sse2
1339     sse3
1340     sse4
1341     sse42
1342     ssse3
1343 '
1344
1345 ARCH_EXT_LIST="
1346     $ARCH_EXT_LIST_ARM
1347     $ARCH_EXT_LIST_X86
1348     altivec
1349     ppc4xx
1350     vis
1351     mipsfpu
1352     mips32r2
1353     mipsdspr1
1354     mipsdspr2
1355 "
1356
1357 HAVE_LIST_CMDLINE='
1358     inline_asm
1359     symver
1360     yasm
1361 '
1362
1363 HAVE_LIST_PUB='
1364     bigendian
1365     fast_unaligned
1366     incompatible_fork_abi
1367 '
1368
1369 MATH_FUNCS="
1370     atanf
1371     atan2f
1372     cbrt
1373     cbrtf
1374     cosf
1375     exp2
1376     exp2f
1377     expf
1378     isinf
1379     isnan
1380     ldexpf
1381     llrint
1382     llrintf
1383     log2
1384     log2f
1385     log10f
1386     lrint
1387     lrintf
1388     powf
1389     rint
1390     round
1391     roundf
1392     sinf
1393     trunc
1394     truncf
1395 "
1396
1397 HAVE_LIST="
1398     $ARCH_EXT_LIST
1399     $(add_suffix _external $ARCH_EXT_LIST)
1400     $(add_suffix _inline   $ARCH_EXT_LIST)
1401     $HAVE_LIST_CMDLINE
1402     $HAVE_LIST_PUB
1403     $THREADS_LIST
1404     $ATOMICS_LIST
1405     $MATH_FUNCS
1406     access
1407     aligned_malloc
1408     aligned_stack
1409     alsa_asoundlib_h
1410     altivec_h
1411     arpa_inet_h
1412     asm_mod_q
1413     asm_mod_y
1414     asm_types_h
1415     atomic_cas_ptr
1416     atomics_native
1417     attribute_may_alias
1418     attribute_packed
1419     cdio_paranoia_h
1420     cdio_paranoia_paranoia_h
1421     CL_cl_h
1422     clock_gettime
1423     closesocket
1424     CommandLineToArgvW
1425     cpunop
1426     CryptGenRandom
1427     dcbzl
1428     dev_bktr_ioctl_bt848_h
1429     dev_bktr_ioctl_meteor_h
1430     dev_ic_bt8xx_h
1431     dev_video_bktr_ioctl_bt848_h
1432     dev_video_meteor_ioctl_meteor_h
1433     direct_h
1434     dlfcn_h
1435     dlopen
1436     dos_paths
1437     dxva_h
1438     ebp_available
1439     ebx_available
1440     fast_64bit
1441     fast_clz
1442     fast_cmov
1443     fcntl
1444     fork
1445     getaddrinfo
1446     gethrtime
1447     getopt
1448     GetProcessAffinityMask
1449     GetProcessMemoryInfo
1450     GetProcessTimes
1451     GetSystemTimeAsFileTime
1452     getrusage
1453     getservbyport
1454     gettimeofday
1455     glob
1456     gnu_as
1457     gsm_h
1458     i686
1459     ibm_asm
1460     inet_aton
1461     io_h
1462     isatty
1463     jack_port_get_latency_range
1464     kbhit
1465     ldbrx
1466     libdc1394_1
1467     libdc1394_2
1468     local_aligned_16
1469     local_aligned_8
1470     localtime_r
1471     loongson
1472     lzo1x_999_compress
1473     machine_ioctl_bt848_h
1474     machine_ioctl_meteor_h
1475     machine_rw_barrier
1476     makeinfo
1477     malloc_h
1478     MapViewOfFile
1479     memalign
1480     MemoryBarrier
1481     mkstemp
1482     mm_empty
1483     mmap
1484     mprotect
1485     msvcrt
1486     nanosleep
1487     openjpeg_1_5_openjpeg_h
1488     PeekNamedPipe
1489     perl
1490     pod2man
1491     poll_h
1492     posix_memalign
1493     pthread_cancel
1494     rdtsc
1495     rsync_contimeout
1496     sched_getaffinity
1497     sdl
1498     SetConsoleTextAttribute
1499     setmode
1500     setrlimit
1501     Sleep
1502     sndio_h
1503     socklen_t
1504     soundcard_h
1505     strerror_r
1506     struct_addrinfo
1507     struct_group_source_req
1508     struct_ip_mreq_source
1509     struct_ipv6_mreq
1510     struct_pollfd
1511     struct_rusage_ru_maxrss
1512     struct_sctp_event_subscribe
1513     struct_sockaddr_in6
1514     struct_sockaddr_sa_len
1515     struct_sockaddr_storage
1516     struct_stat_st_mtim_tv_nsec
1517     struct_v4l2_frmivalenum_discrete
1518     symver_asm_label
1519     symver_gnu_asm
1520     sync_val_compare_and_swap
1521     sysconf
1522     sysctl
1523     sys_mman_h
1524     sys_param_h
1525     sys_resource_h
1526     sys_select_h
1527     sys_soundcard_h
1528     sys_time_h
1529     sys_videoio_h
1530     termios_h
1531     texi2html
1532     threads
1533     unistd_h
1534     usleep
1535     vfp_args
1536     VirtualAlloc
1537     windows_h
1538     winsock2_h
1539     xform_asm
1540     xmm_clobbers
1541 "
1542
1543 # options emitted with CONFIG_ prefix but not available on the command line
1544 CONFIG_EXTRA="
1545     aandcttables
1546     ac3dsp
1547     audio_frame_queue
1548     dsputil
1549     frame_thread_encoder
1550     gcrypt
1551     golomb
1552     gplv3
1553     h264chroma
1554     h264dsp
1555     h264pred
1556     h264qpel
1557     hpeldsp
1558     huffman
1559     lgplv3
1560     lpc
1561     mpegaudio
1562     mpegaudiodsp
1563     mpegvideo
1564     mpegvideoenc
1565     nettle
1566     rangecoder
1567     rtpdec
1568     rtpenc_chain
1569     sinewin
1570     videodsp
1571     vp3dsp
1572 "
1573
1574 CMDLINE_SELECT="
1575     $ARCH_EXT_LIST
1576     $CONFIG_LIST
1577     $HAVE_LIST_CMDLINE
1578     $THREADS_LIST
1579     asm
1580     cross_compile
1581     debug
1582     extra_warnings
1583     logging
1584     lto
1585     optimizations
1586     stripping
1587 "
1588
1589 PATHS_LIST='
1590     bindir
1591     datadir
1592     incdir
1593     libdir
1594     mandir
1595     prefix
1596     shlibdir
1597 '
1598
1599 CMDLINE_SET="
1600     $PATHS_LIST
1601     ar
1602     arch
1603     as
1604     assert_level
1605     build_suffix
1606     cc
1607     cpu
1608     cross_prefix
1609     cxx
1610     dep_cc
1611     extra_version
1612     host_cc
1613     host_cflags
1614     host_ld
1615     host_ldflags
1616     host_libs
1617     host_os
1618     install
1619     ld
1620     logfile
1621     malloc_prefix
1622     nm
1623     optflags
1624     pkg_config
1625     progs_suffix
1626     random_seed
1627     samples
1628     strip
1629     sysinclude
1630     sysroot
1631     target_exec
1632     target_os
1633     target_path
1634     target_samples
1635     toolchain
1636     valgrind
1637     yasmexe
1638 "
1639
1640 CMDLINE_APPEND="
1641     extra_cflags
1642     extra_cxxflags
1643     host_cppflags
1644 "
1645
1646 # code dependency declarations
1647
1648 # architecture extensions
1649
1650 armv5te_deps="arm"
1651 armv6_deps="arm"
1652 armv6t2_deps="arm"
1653 neon_deps="arm"
1654 vfp_deps="arm"
1655 vfpv3_deps="vfp"
1656
1657 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1658
1659 mipsfpu_deps="mips"
1660 mips32r2_deps="mips"
1661 mipsdspr1_deps="mips"
1662 mipsdspr2_deps="mips"
1663
1664 altivec_deps="ppc"
1665 ppc4xx_deps="ppc"
1666
1667 vis_deps="sparc"
1668
1669 x86_64_suggest="fast_cmov i686"
1670
1671 amd3dnow_deps="mmx"
1672 amd3dnowext_deps="amd3dnow"
1673 mmx_deps="x86"
1674 mmxext_deps="mmx"
1675 sse_deps="mmxext"
1676 sse2_deps="sse"
1677 sse3_deps="sse2"
1678 ssse3_deps="sse3"
1679 sse4_deps="ssse3"
1680 sse42_deps="sse4"
1681 avx_deps="sse42"
1682 fma4_deps="avx"
1683
1684 mmx_external_deps="yasm"
1685 mmx_inline_deps="inline_asm"
1686 mmx_suggest="mmx_external mmx_inline"
1687
1688 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1689     eval dep=\$${ext}_deps
1690     eval ${ext}_external_deps='"${dep}_external"'
1691     eval ${ext}_inline_deps='"${dep}_inline"'
1692     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1693 done
1694
1695 aligned_stack_if_any="ppc x86"
1696 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1697 fast_clz_if_any="alpha avr32 mips ppc x86"
1698 fast_unaligned_if_any="ppc x86"
1699
1700 inline_asm_deps="!tms470"
1701 need_memalign="altivec neon sse"
1702
1703 symver_if_any="symver_asm_label symver_gnu_asm"
1704
1705 log2_deps="!msvcrt"
1706
1707 # subsystems
1708 dct_select="rdft"
1709 error_resilience_select="dsputil"
1710 frame_thread_encoder_deps="encoders threads"
1711 lpc_select="dsputil"
1712 mdct_select="fft"
1713 rdft_select="fft"
1714 mpegaudio_select="mpegaudiodsp"
1715 mpegaudiodsp_select="dct"
1716 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1717 mpegvideoenc_select="mpegvideo"
1718
1719 # decoders / encoders
1720 aac_decoder_select="mdct sinewin"
1721 aac_encoder_select="audio_frame_queue mdct sinewin"
1722 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1723 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1724 ac3_encoder_select="mdct ac3dsp dsputil"
1725 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1726 aic_decoder_select="dsputil golomb"
1727 alac_encoder_select="lpc"
1728 als_decoder_select="dsputil"
1729 amrnb_decoder_select="lsp"
1730 amrwb_decoder_select="lsp"
1731 amv_decoder_select="dsputil hpeldsp"
1732 amv_encoder_select="aandcttables"
1733 ape_decoder_select="dsputil"
1734 asv1_decoder_select="dsputil"
1735 asv1_encoder_select="dsputil"
1736 asv2_decoder_select="dsputil"
1737 asv2_encoder_select="dsputil"
1738 atrac1_decoder_select="mdct sinewin"
1739 atrac3_decoder_select="mdct"
1740 bink_decoder_select="dsputil hpeldsp"
1741 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1742 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1743 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1744 cllc_decoder_select="dsputil"
1745 comfortnoise_encoder_select="lpc"
1746 cook_decoder_select="dsputil mdct sinewin"
1747 cscd_decoder_select="lzo"
1748 cscd_decoder_suggest="zlib"
1749 dca_decoder_select="mdct"
1750 dirac_decoder_select="dsputil dwt golomb videodsp"
1751 dnxhd_decoder_select="dsputil"
1752 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1753 dvvideo_decoder_select="dsputil"
1754 dvvideo_encoder_select="dsputil"
1755 dxa_decoder_select="zlib"
1756 eac3_decoder_select="ac3_decoder"
1757 eac3_encoder_select="ac3_encoder"
1758 eamad_decoder_select="aandcttables dsputil mpegvideo"
1759 eatgq_decoder_select="aandcttables"
1760 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1761 exr_decoder_select="zlib"
1762 ffv1_decoder_select="dsputil golomb rangecoder"
1763 ffv1_encoder_select="dsputil rangecoder"
1764 ffvhuff_decoder_select="dsputil"
1765 ffvhuff_encoder_select="dsputil huffman"
1766 flac_decoder_select="golomb"
1767 flac_encoder_select="dsputil golomb lpc"
1768 flashsv_decoder_select="zlib"
1769 flashsv_encoder_select="zlib"
1770 flashsv2_encoder_select="zlib"
1771 flashsv2_decoder_select="zlib"
1772 flv_decoder_select="h263_decoder"
1773 flv_encoder_select="h263_encoder"
1774 fourxm_decoder_select="dsputil"
1775 fraps_decoder_select="dsputil huffman"
1776 g2m_decoder_select="dsputil zlib"
1777 g729_decoder_select="dsputil"
1778 h261_decoder_select="error_resilience mpegvideo"
1779 h261_encoder_select="aandcttables mpegvideoenc"
1780 h263_decoder_select="error_resilience h263_parser mpegvideo"
1781 h263_encoder_select="aandcttables mpegvideoenc"
1782 h263i_decoder_select="h263_decoder"
1783 h263p_encoder_select="h263_encoder"
1784 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1785 h264_decoder_suggest="error_resilience"
1786 huffyuv_decoder_select="dsputil"
1787 huffyuv_encoder_select="dsputil huffman"
1788 iac_decoder_select="dsputil fft mdct sinewin"
1789 imc_decoder_select="dsputil fft mdct sinewin"
1790 indeo3_decoder_select="hpeldsp"
1791 interplay_video_decoder_select="hpeldsp"
1792 jpegls_decoder_select="dsputil golomb hpeldsp"
1793 jpegls_encoder_select="golomb"
1794 jv_decoder_select="dsputil"
1795 lagarith_decoder_select="dsputil"
1796 ljpeg_encoder_select="aandcttables mpegvideoenc"
1797 loco_decoder_select="golomb"
1798 mdec_decoder_select="dsputil error_resilience mpegvideo"
1799 mimic_decoder_select="dsputil hpeldsp"
1800 mjpeg_decoder_select="dsputil hpeldsp"
1801 mjpegb_decoder_select="dsputil hpeldsp"
1802 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1803 mlp_decoder_select="dsputil mlp_parser"
1804 motionpixels_decoder_select="dsputil"
1805 mp1_decoder_select="mpegaudio"
1806 mp1float_decoder_select="mpegaudio"
1807 mp2_decoder_select="mpegaudio"
1808 mp2float_decoder_select="mpegaudio"
1809 mp3_decoder_select="mpegaudio"
1810 mp3adu_decoder_select="mpegaudio"
1811 mp3adufloat_decoder_select="mpegaudio"
1812 mp3float_decoder_select="mpegaudio"
1813 mp3on4_decoder_select="mpegaudio"
1814 mp3on4float_decoder_select="mpegaudio"
1815 mpc7_decoder_select="dsputil mpegaudiodsp"
1816 mpc8_decoder_select="dsputil mpegaudiodsp"
1817 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1818 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1819 mpeg1video_decoder_select="error_resilience mpegvideo"
1820 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1821 mpeg2video_decoder_select="error_resilience mpegvideo"
1822 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1823 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1824 mpeg4_encoder_select="h263_encoder"
1825 msmpeg4v1_decoder_select="h263_decoder"
1826 msmpeg4v2_decoder_select="h263_decoder"
1827 msmpeg4v2_encoder_select="h263_encoder"
1828 msmpeg4v3_decoder_select="h263_decoder"
1829 msmpeg4v3_encoder_select="h263_encoder"
1830 mss2_decoder_select="error_resilience vc1_decoder"
1831 mxpeg_decoder_select="dsputil hpeldsp"
1832 nellymoser_decoder_select="mdct sinewin"
1833 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1834 nuv_decoder_select="dsputil lzo"
1835 png_decoder_select="zlib"
1836 png_encoder_select="dsputil zlib"
1837 prores_decoder_select="dsputil"
1838 prores_encoder_select="dsputil"
1839 qcelp_decoder_select="lsp"
1840 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1841 ra_144_encoder_select="audio_frame_queue lpc"
1842 ralf_decoder_select="golomb"
1843 rtjpeg_decoder_select="dsputil"
1844 rv10_decoder_select="error_resilience h263_decoder"
1845 rv10_encoder_select="h263_encoder"
1846 rv20_decoder_select="error_resilience h263_decoder"
1847 rv20_encoder_select="h263_encoder"
1848 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1849 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1850 shorten_decoder_select="golomb"
1851 sipr_decoder_select="lsp"
1852 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1853 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1854 sonic_decoder_select="golomb"
1855 sonic_encoder_select="golomb"
1856 sonic_ls_encoder_select="golomb"
1857 sp5x_decoder_select="dsputil hpeldsp"
1858 svq1_decoder_select="hpeldsp"
1859 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1860 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1861 svq3_decoder_suggest="error_resilience zlib"
1862 tak_decoder_select="dsputil"
1863 theora_decoder_select="vp3_decoder"
1864 tiff_decoder_suggest="zlib"
1865 tiff_encoder_suggest="zlib"
1866 thp_decoder_select="dsputil hpeldsp"
1867 truehd_decoder_select="mlp_parser"
1868 truemotion2_decoder_select="dsputil"
1869 truespeech_decoder_select="dsputil"
1870 tscc_decoder_select="zlib"
1871 twinvq_decoder_select="mdct lsp sinewin"
1872 utvideo_decoder_select="dsputil"
1873 utvideo_encoder_select="dsputil huffman"
1874 vble_decoder_select="dsputil"
1875 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1876 vc1image_decoder_select="vc1_decoder"
1877 vorbis_decoder_select="mdct"
1878 vorbis_encoder_select="mdct"
1879 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1880 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1881 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1882 vp6a_decoder_select="vp6_decoder"
1883 vp6f_decoder_select="vp6_decoder"
1884 vp8_decoder_select="h264pred videodsp"
1885 wmapro_decoder_select="mdct sinewin"
1886 wmav1_decoder_select="mdct sinewin"
1887 wmav1_encoder_select="mdct sinewin"
1888 wmav2_decoder_select="mdct sinewin"
1889 wmav2_encoder_select="mdct sinewin"
1890 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1891 wmv1_decoder_select="h263_decoder"
1892 wmv1_encoder_select="h263_encoder"
1893 wmv2_decoder_select="h263_decoder videodsp"
1894 wmv2_encoder_select="h263_encoder"
1895 wmv3_decoder_select="vc1_decoder"
1896 wmv3image_decoder_select="wmv3_decoder"
1897 zerocodec_decoder_select="zlib"
1898 zlib_decoder_select="zlib"
1899 zlib_encoder_select="zlib"
1900 zmbv_decoder_select="zlib"
1901 zmbv_encoder_select="zlib"
1902
1903 # hardware accelerators
1904 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1905 dxva2_deps="dxva2api_h"
1906 vaapi_deps="va_va_h"
1907 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1908 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1909 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1910
1911 h263_vaapi_hwaccel_deps="vaapi"
1912 h263_vaapi_hwaccel_select="h263_decoder"
1913 h263_vdpau_hwaccel_deps="vdpau"
1914 h263_vdpau_hwaccel_select="h263_decoder"
1915 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1916 h264_dxva2_hwaccel_deps="dxva2"
1917 h264_dxva2_hwaccel_select="h264_decoder"
1918 h264_vaapi_hwaccel_deps="vaapi"
1919 h264_vaapi_hwaccel_select="h264_decoder"
1920 h264_vda_decoder_deps="vda"
1921 h264_vda_decoder_select="h264_decoder"
1922 h264_vda_hwaccel_deps="vda"
1923 h264_vda_hwaccel_select="h264_decoder"
1924 h264_vdpau_decoder_deps="vdpau"
1925 h264_vdpau_decoder_select="h264_decoder"
1926 h264_vdpau_hwaccel_deps="vdpau"
1927 h264_vdpau_hwaccel_select="h264_decoder"
1928 mpeg_vdpau_decoder_deps="vdpau"
1929 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1930 mpeg1_vdpau_decoder_deps="vdpau"
1931 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1932 mpeg1_vdpau_hwaccel_deps="vdpau"
1933 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1934 mpeg2_crystalhd_decoder_select="crystalhd"
1935 mpeg2_dxva2_hwaccel_deps="dxva2"
1936 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1937 mpeg2_vaapi_hwaccel_deps="vaapi"
1938 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1939 mpeg2_vdpau_hwaccel_deps="vdpau"
1940 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1941 mpeg4_crystalhd_decoder_select="crystalhd"
1942 mpeg4_vaapi_hwaccel_deps="vaapi"
1943 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1944 mpeg4_vdpau_decoder_deps="vdpau"
1945 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1946 mpeg4_vdpau_hwaccel_deps="vdpau"
1947 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1948 msmpeg4_crystalhd_decoder_select="crystalhd"
1949 vc1_crystalhd_decoder_select="crystalhd"
1950 vc1_dxva2_hwaccel_deps="dxva2"
1951 vc1_dxva2_hwaccel_select="vc1_decoder"
1952 vc1_vaapi_hwaccel_deps="vaapi"
1953 vc1_vaapi_hwaccel_select="vc1_decoder"
1954 vc1_vdpau_decoder_deps="vdpau"
1955 vc1_vdpau_decoder_select="vc1_decoder"
1956 vc1_vdpau_hwaccel_deps="vdpau"
1957 vc1_vdpau_hwaccel_select="vc1_decoder"
1958 wmv3_crystalhd_decoder_select="crystalhd"
1959 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1960 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1961 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1962 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1963
1964 # parsers
1965 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1966 mpeg4video_parser_select="error_resilience mpegvideo"
1967 mpegvideo_parser_select="error_resilience mpegvideo"
1968 vc1_parser_select="mpegvideo"
1969
1970 # external libraries
1971 libaacplus_encoder_deps="libaacplus"
1972 libcelt_decoder_deps="libcelt"
1973 libfaac_encoder_deps="libfaac"
1974 libfaac_encoder_select="audio_frame_queue"
1975 libfdk_aac_encoder_deps="libfdk_aac"
1976 libfdk_aac_encoder_select="audio_frame_queue"
1977 libgsm_decoder_deps="libgsm"
1978 libgsm_encoder_deps="libgsm"
1979 libgsm_ms_decoder_deps="libgsm"
1980 libgsm_ms_encoder_deps="libgsm"
1981 libilbc_decoder_deps="libilbc"
1982 libilbc_encoder_deps="libilbc"
1983 libmodplug_demuxer_deps="libmodplug"
1984 libmp3lame_encoder_deps="libmp3lame"
1985 libmp3lame_encoder_select="audio_frame_queue"
1986 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1987 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1988 libopencore_amrnb_encoder_select="audio_frame_queue"
1989 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1990 libopenjpeg_decoder_deps="libopenjpeg"
1991 libopenjpeg_encoder_deps="libopenjpeg"
1992 libopus_decoder_deps="libopus"
1993 libopus_encoder_deps="libopus"
1994 libopus_encoder_select="audio_frame_queue"
1995 libquvi_demuxer_deps="libquvi"
1996 libschroedinger_decoder_deps="libschroedinger"
1997 libschroedinger_encoder_deps="libschroedinger"
1998 libshine_encoder_deps="libshine"
1999 libshine_encoder_select="audio_frame_queue"
2000 libspeex_decoder_deps="libspeex"
2001 libspeex_encoder_deps="libspeex"
2002 libspeex_encoder_select="audio_frame_queue"
2003 libstagefright_h264_decoder_deps="libstagefright_h264"
2004 libtheora_encoder_deps="libtheora"
2005 libtwolame_encoder_deps="libtwolame"
2006 libvo_aacenc_encoder_deps="libvo_aacenc"
2007 libvo_aacenc_encoder_select="audio_frame_queue"
2008 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2009 libvorbis_decoder_deps="libvorbis"
2010 libvorbis_encoder_deps="libvorbis"
2011 libvorbis_encoder_select="audio_frame_queue"
2012 libvpx_vp8_decoder_deps="libvpx"
2013 libvpx_vp8_encoder_deps="libvpx"
2014 libvpx_vp9_decoder_deps="libvpx"
2015 libvpx_vp9_encoder_deps="libvpx"
2016 libwavpack_encoder_deps="libwavpack"
2017 libx264_encoder_deps="libx264"
2018 libx264rgb_encoder_deps="libx264"
2019 libxavs_encoder_deps="libxavs"
2020 libxvid_encoder_deps="libxvid"
2021 libutvideo_decoder_deps="libutvideo"
2022 libutvideo_encoder_deps="libutvideo"
2023
2024 # demuxers / muxers
2025 ac3_demuxer_select="ac3_parser"
2026 asf_stream_muxer_select="asf_muxer"
2027 avisynth_demuxer_deps="avisynth"
2028 dirac_demuxer_select="dirac_parser"
2029 dts_demuxer_select="dca_parser"
2030 dtshd_demuxer_select="dca_parser"
2031 eac3_demuxer_select="ac3_parser"
2032 f4v_muxer_select="mov_muxer"
2033 flac_demuxer_select="flac_parser"
2034 ipod_muxer_select="mov_muxer"
2035 ismv_muxer_select="mov_muxer"
2036 libnut_demuxer_deps="libnut"
2037 libnut_muxer_deps="libnut"
2038 matroska_audio_muxer_select="matroska_muxer"
2039 matroska_demuxer_suggest="bzlib lzo zlib"
2040 mov_demuxer_suggest="zlib"
2041 mov_muxer_select="rtpenc_chain"
2042 mp3_demuxer_select="mpegaudio_parser"
2043 mp4_muxer_select="mov_muxer"
2044 mpegts_muxer_select="adts_muxer latm_muxer"
2045 mpegtsraw_demuxer_select="mpegts_demuxer"
2046 mxf_d10_muxer_select="mxf_muxer"
2047 ogg_demuxer_select="golomb"
2048 psp_muxer_select="mov_muxer"
2049 rtp_demuxer_select="sdp_demuxer"
2050 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2051 rtsp_demuxer_select="http_protocol rtpdec"
2052 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2053 sap_demuxer_select="sdp_demuxer"
2054 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2055 sdp_demuxer_select="rtpdec"
2056 smoothstreaming_muxer_select="ismv_muxer"
2057 spdif_muxer_select="aac_parser"
2058 tak_demuxer_select="tak_parser"
2059 tg2_muxer_select="mov_muxer"
2060 tgp_muxer_select="mov_muxer"
2061 vobsub_demuxer_select="mpegps_demuxer"
2062 w64_demuxer_deps="wav_demuxer"
2063 w64_muxer_deps="wav_muxer"
2064
2065 # indevs / outdevs
2066 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2067 alsa_outdev_deps="alsa_asoundlib_h"
2068 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2069 caca_outdev_deps="libcaca"
2070 dshow_indev_deps="IBaseFilter"
2071 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2072 dv1394_indev_deps="dv1394 dv_demuxer"
2073 fbdev_indev_deps="linux_fb_h"
2074 iec61883_indev_deps="libiec61883"
2075 jack_indev_deps="jack_jack_h sem_timedwait"
2076 lavfi_indev_deps="avfilter"
2077 libcdio_indev_deps="libcdio"
2078 libdc1394_indev_deps="libdc1394"
2079 libv4l2_indev_deps="libv4l2"
2080 openal_indev_deps="openal"
2081 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2082 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2083 pulse_indev_deps="libpulse"
2084 sdl_outdev_deps="sdl"
2085 sndio_indev_deps="sndio_h"
2086 sndio_outdev_deps="sndio_h"
2087 v4l_indev_deps="linux_videodev_h"
2088 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2089 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2090 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2091 vfwcap_indev_extralibs="-lavicap32"
2092 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2093 xv_outdev_extralibs="-lXv -lX11 -lXext"
2094 x11grab_indev_deps="x11grab"
2095
2096 # protocols
2097 bluray_protocol_deps="libbluray"
2098 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2099 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2100 ffrtmpcrypt_protocol_select="tcp_protocol"
2101 ffrtmphttp_protocol_deps="!librtmp_protocol"
2102 ffrtmphttp_protocol_select="http_protocol"
2103 ftp_protocol_select="tcp_protocol"
2104 gopher_protocol_select="network"
2105 httpproxy_protocol_select="tcp_protocol"
2106 http_protocol_select="tcp_protocol"
2107 https_protocol_select="tls_protocol"
2108 librtmp_protocol_deps="librtmp"
2109 librtmpe_protocol_deps="librtmp"
2110 librtmps_protocol_deps="librtmp"
2111 librtmpt_protocol_deps="librtmp"
2112 librtmpte_protocol_deps="librtmp"
2113 mmsh_protocol_select="http_protocol"
2114 mmst_protocol_select="network"
2115 rtmp_protocol_deps="!librtmp_protocol"
2116 rtmp_protocol_select="tcp_protocol"
2117 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2118 rtmps_protocol_deps="!librtmp_protocol"
2119 rtmps_protocol_select="tls_protocol"
2120 rtmpt_protocol_select="ffrtmphttp_protocol"
2121 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2122 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2123 rtp_protocol_select="udp_protocol"
2124 sctp_protocol_deps="struct_sctp_event_subscribe"
2125 sctp_protocol_select="network"
2126 srtp_protocol_select="rtp_protocol"
2127 tcp_protocol_select="network"
2128 tls_protocol_deps_any="openssl gnutls"
2129 tls_protocol_select="tcp_protocol"
2130 udp_protocol_select="network"
2131
2132 # filters
2133 aconvert_filter_deps="swresample"
2134 amovie_filter_deps="avcodec avformat"
2135 aresample_filter_deps="swresample"
2136 ass_filter_deps="libass"
2137 asyncts_filter_deps="avresample"
2138 atempo_filter_deps="avcodec rdft"
2139 azmq_filter_deps="libzmq"
2140 blackframe_filter_deps="gpl"
2141 boxblur_filter_deps="gpl"
2142 colormatrix_filter_deps="gpl"
2143 cropdetect_filter_deps="gpl"
2144 dctdnoiz_filter_deps="avcodec fft"
2145 delogo_filter_deps="gpl"
2146 deshake_filter_deps="avcodec"
2147 deshake_filter_select="dsputil"
2148 drawtext_filter_deps="libfreetype"
2149 ebur128_filter_deps="gpl"
2150 flite_filter_deps="libflite"
2151 frei0r_filter_deps="frei0r dlopen"
2152 frei0r_filter_extralibs='$ldl'
2153 frei0r_src_filter_deps="frei0r dlopen"
2154 frei0r_src_filter_extralibs='$ldl'
2155 geq_filter_deps="gpl"
2156 histeq_filter_deps="gpl"
2157 hqdn3d_filter_deps="gpl"
2158 hue_filter_deps="gpl"
2159 interlace_filter_deps="gpl"
2160 kerndeint_filter_deps="gpl"
2161 mcdeint_filter_deps="avcodec gpl"
2162 movie_filter_deps="avcodec avformat"
2163 mp_filter_deps="gpl avcodec swscale inline_asm"
2164 mpdecimate_filter_deps="gpl avcodec"
2165 mptestsrc_filter_deps="gpl"
2166 negate_filter_deps="lut_filter"
2167 noise_filter_deps="gpl"
2168 resample_filter_deps="avresample"
2169 ocv_filter_deps="libopencv"
2170 owdenoise_filter_deps="gpl"
2171 pan_filter_deps="swresample"
2172 pp_filter_deps="gpl postproc"
2173 removelogo_filter_deps="avcodec avformat swscale"
2174 sab_filter_deps="gpl swscale"
2175 scale_filter_deps="swscale"
2176 smartblur_filter_deps="gpl swscale"
2177 showspectrum_filter_deps="avcodec rdft"
2178 spp_filter_deps="gpl avcodec fft"
2179 stereo3d_filter_deps="gpl"
2180 subtitles_filter_deps="avformat avcodec libass"
2181 super2xsai_filter_deps="gpl"
2182 tinterlace_filter_deps="gpl"
2183 vidstabdetect_filter_deps="libvidstab"
2184 vidstabtransform_filter_deps="libvidstab"
2185 yadif_filter_deps="gpl"
2186 pixfmts_super2xsai_test_deps="super2xsai_filter"
2187 tinterlace_merge_test_deps="tinterlace_filter"
2188 tinterlace_pad_test_deps="tinterlace_filter"
2189 zmq_filter_deps="libzmq"
2190
2191 # libraries
2192 avcodec_deps="avutil"
2193 avdevice_deps="avutil avcodec avformat"
2194 avfilter_deps="avutil"
2195 avformat_deps="avutil avcodec"
2196 avresample_deps="avutil"
2197 postproc_deps="avutil gpl"
2198 swscale_deps="avutil"
2199
2200 # programs
2201 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2202 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2203                null_filter
2204                setpts_filter trim_filter"
2205 ffplay_deps="avcodec avformat swscale swresample sdl"
2206 ffplay_select="rdft crop_filter"
2207 ffprobe_deps="avcodec avformat"
2208 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2209 ffserver_extralibs='$ldl'
2210
2211 # documentation
2212 podpages_deps="perl"
2213 manpages_deps="perl pod2man"
2214 htmlpages_deps="texi2html"
2215 txtpages_deps="makeinfo"
2216 doc_deps_any="manpages htmlpages podpages txtpages"
2217
2218 # default parameters
2219
2220 logfile="config.log"
2221
2222 # installation paths
2223 prefix_default="/usr/local"
2224 bindir_default='${prefix}/bin'
2225 datadir_default='${prefix}/share/ffmpeg'
2226 incdir_default='${prefix}/include'
2227 libdir_default='${prefix}/lib'
2228 mandir_default='${prefix}/share/man'
2229 shlibdir_default="$libdir_default"
2230
2231 # toolchain
2232 ar_default="ar"
2233 cc_default="gcc"
2234 cxx_default="g++"
2235 host_cc_default="gcc"
2236 cp_f="cp -f"
2237 install="install"
2238 ln_s="ln -s -f"
2239 nm_default="nm -g"
2240 objformat="elf"
2241 pkg_config_default=pkg-config
2242 ranlib="ranlib"
2243 strip_default="strip"
2244 yasmexe_default="yasm"
2245
2246 nogas=":"
2247
2248 # machine
2249 arch_default=$(uname -m)
2250 cpu="generic"
2251
2252 # OS
2253 target_os_default=$(tolower $(uname -s))
2254 host_os=$target_os_default
2255
2256 # configurable options
2257 enable $PROGRAM_LIST
2258 enable $DOCUMENT_LIST
2259 enable $(filter_out avresample $LIBRARY_LIST)
2260 enable stripping
2261
2262 enable asm
2263 enable debug
2264 enable doc
2265 enable optimizations
2266 enable runtime_cpudetect
2267 enable safe_bitstream_reader
2268 enable static
2269 enable swscale_alpha
2270
2271 # Enable hwaccels by default.
2272 enable dxva2 vaapi vdpau
2273
2274 # build settings
2275 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2276 FFSERVERLDFLAGS=-Wl,-E
2277 LIBPREF="lib"
2278 LIBSUF=".a"
2279 FULLNAME='$(NAME)$(BUILDSUF)'
2280 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2281 SLIBPREF="lib"
2282 SLIBSUF=".so"
2283 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2284 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2285 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2286 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2287 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2288 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2289
2290 asflags_filter=echo
2291 cflags_filter=echo
2292 ldflags_filter=echo
2293
2294 AS_C='-c'
2295 AS_O='-o $@'
2296 CC_C='-c'
2297 CC_E='-E -o $@'
2298 CC_O='-o $@'
2299 CXX_C='-c'
2300 CXX_O='-o $@'
2301 LD_O='-o $@'
2302 LD_LIB='-l%'
2303 LD_PATH='-L'
2304 HOSTCC_C='-c'
2305 HOSTCC_O='-o $@'
2306 HOSTLD_O='-o $@'
2307
2308 host_cflags='-O3 -g'
2309 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2310 host_libs='-lm'
2311 host_cflags_filter=echo
2312 host_ldflags_filter=echo
2313
2314 target_path='$(CURDIR)'
2315
2316 # since the object filename is not given with the -MM flag, the compiler
2317 # is only able to print the basename, and we must add the path ourselves
2318 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2319 DEPFLAGS='-MM'
2320
2321 # find source path
2322 if test -f configure; then
2323     source_path=.
2324 else
2325     source_path=$(cd $(dirname "$0"); pwd)
2326     echo "$source_path" | grep -q '[[:blank:]]' &&
2327         die "Out of tree builds are impossible with whitespace in source path."
2328     test -e "$source_path/config.h" &&
2329         die "Out of tree builds are impossible with config.h in source dir."
2330 fi
2331
2332 for v in "$@"; do
2333     r=${v#*=}
2334     l=${v%"$r"}
2335     r=$(sh_quote "$r")
2336     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2337 done
2338
2339 find_things(){
2340     thing=$1
2341     pattern=$2
2342     file=$source_path/$3
2343     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2344 }
2345
2346 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2347 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2348 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2349 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2350 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2351 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2352 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2353 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2354 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2355 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2356 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2357
2358 ALL_COMPONENTS="
2359     $BSF_LIST
2360     $DECODER_LIST
2361     $DEMUXER_LIST
2362     $ENCODER_LIST
2363     $FILTER_LIST
2364     $HWACCEL_LIST
2365     $INDEV_LIST
2366     $MUXER_LIST
2367     $OUTDEV_LIST
2368     $PARSER_LIST
2369     $PROTOCOL_LIST
2370 "
2371
2372 for n in $COMPONENT_LIST; do
2373     v=$(toupper ${n%s})_LIST
2374     eval enable \$$v
2375     eval ${n}_if_any="\$$v"
2376 done
2377
2378 enable $ARCH_EXT_LIST
2379
2380 die_unknown(){
2381     echo "Unknown option \"$1\"."
2382     echo "See $0 --help for available options."
2383     exit 1
2384 }
2385
2386 print_3_columns() {
2387     cat | tr ' ' '\n' | sort | pr -r -3 -t
2388 }
2389
2390 show_list() {
2391     suffix=_$1
2392     shift
2393     echo $* | sed s/$suffix//g | print_3_columns
2394     exit 0
2395 }
2396
2397 rand_list(){
2398     IFS=', '
2399     set -- $*
2400     unset IFS
2401     for thing; do
2402         comp=${thing%:*}
2403         prob=${thing#$comp}
2404         prob=${prob#:}
2405         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2406         echo "prob ${prob:-0.5}"
2407         printf '%s\n' $comp
2408     done
2409 }
2410
2411 do_random(){
2412     action=$1
2413     shift
2414     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2415     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2416 }
2417
2418 for opt do
2419     optval="${opt#*=}"
2420     case "$opt" in
2421         --extra-ldflags=*)
2422             add_ldflags $optval
2423         ;;
2424         --extra-libs=*)
2425             add_extralibs $optval
2426         ;;
2427         --disable-devices)
2428             disable $INDEV_LIST $OUTDEV_LIST
2429         ;;
2430         --enable-debug=*)
2431             debuglevel="$optval"
2432         ;;
2433         --disable-programs)
2434             disable $PROGRAM_LIST
2435         ;;
2436         --disable-everything)
2437             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2438         ;;
2439         --disable-all)
2440             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2441             disable $LIBRARY_LIST $PROGRAM_LIST doc
2442         ;;
2443         --enable-random|--disable-random)
2444             action=${opt%%-random}
2445             do_random ${action#--} $COMPONENT_LIST
2446         ;;
2447         --enable-random=*|--disable-random=*)
2448             action=${opt%%-random=*}
2449             do_random ${action#--} $optval
2450         ;;
2451         --enable-*=*|--disable-*=*)
2452             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2453             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2454             eval list=\$$(toupper $thing)_LIST
2455             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2456             list=$(filter "$name" $list)
2457             [ "$list" = "" ] && warn "Option $opt did not match anything"
2458             $action $list
2459         ;;
2460         --enable-?*|--disable-?*)
2461             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2462             if is_in $option $COMPONENT_LIST; then
2463                 test $action = disable && action=unset
2464                 eval $action \$$(toupper ${option%s})_LIST
2465             elif is_in $option $CMDLINE_SELECT; then
2466                 $action $option
2467             else
2468                 die_unknown $opt
2469             fi
2470         ;;
2471         --list-*)
2472             NAME="${opt#--list-}"
2473             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2474             NAME=${NAME%s}
2475             eval show_list $NAME \$$(toupper $NAME)_LIST
2476         ;;
2477         --help|-h) show_help
2478         ;;
2479         --fatal-warnings) enable fatal_warnings
2480         ;;
2481         *)
2482             optname="${opt%%=*}"
2483             optname="${optname#--}"
2484             optname=$(echo "$optname" | sed 's/-/_/g')
2485             if is_in $optname $CMDLINE_SET; then
2486                 eval $optname='$optval'
2487             elif is_in $optname $CMDLINE_APPEND; then
2488                 append $optname "$optval"
2489             else
2490                 die_unknown $opt
2491             fi
2492         ;;
2493     esac
2494 done
2495
2496 disabled logging && logfile=/dev/null
2497
2498 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2499 set >> $logfile
2500
2501 test -n "$cross_prefix" && enable cross_compile
2502
2503 if enabled cross_compile; then
2504     test -n "$arch" && test -n "$target_os" ||
2505         die "Must specify target arch and OS when cross-compiling"
2506 fi
2507
2508 ar_default="${cross_prefix}${ar_default}"
2509 cc_default="${cross_prefix}${cc_default}"
2510 cxx_default="${cross_prefix}${cxx_default}"
2511 nm_default="${cross_prefix}${nm_default}"
2512 pkg_config_default="${cross_prefix}${pkg_config_default}"
2513 ranlib="${cross_prefix}${ranlib}"
2514 strip_default="${cross_prefix}${strip_default}"
2515
2516 sysinclude_default="${sysroot}/usr/include"
2517
2518 test -n "$valgrind" && toolchain="valgrind-memcheck"
2519
2520 case "$toolchain" in
2521     clang-asan)
2522         cc_default="clang"
2523         add_cflags  -fsanitize=address
2524         add_ldflags -fsanitize=address
2525     ;;
2526     clang-tsan)
2527         cc_default="clang"
2528         add_cflags  -fsanitize=thread -pie
2529         add_ldflags -fsanitize=thread -pie
2530     ;;
2531     gcc-asan)
2532         cc_default="gcc"
2533         add_cflags  -fsanitize=address
2534         add_ldflags -fsanitize=address
2535     ;;
2536     gcc-tsan)
2537         cc_default="gcc"
2538         add_cflags  -fsanitize=thread -pie -fPIC
2539         add_ldflags -fsanitize=thread -pie -fPIC
2540     ;;
2541     valgrind-massif)
2542         target_exec_default=${valgrind:-"valgrind"}
2543         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"
2544     ;;
2545     valgrind-memcheck)
2546         target_exec_default=${valgrind:-"valgrind"}
2547         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2548     ;;
2549     msvc)
2550         cc_default="c99wrap cl"
2551         ld_default="c99wrap link"
2552         nm_default="dumpbin -symbols"
2553         ar_default="lib"
2554         target_os_default="win32"
2555     ;;
2556     icl)
2557         cc_default="c99wrap -noconv icl"
2558         ld_default="c99wrap xilink"
2559         nm_default="dumpbin -symbols"
2560         ar_default="xilib"
2561         target_os_default="win32"
2562     ;;
2563     gcov)
2564         add_cflags  -fprofile-arcs -ftest-coverage
2565         add_ldflags -fprofile-arcs -ftest-coverage
2566     ;;
2567     ?*)
2568         die "Unknown toolchain $toolchain"
2569     ;;
2570 esac
2571
2572 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2573 enabled cross_compile || host_cc_default=$cc
2574 set_default host_cc
2575
2576 if ! $pkg_config --version >/dev/null 2>&1; then
2577     warn "$pkg_config not found, library detection may fail."
2578     pkg_config=false
2579 fi
2580
2581 exesuf() {
2582     case $1 in
2583         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2584     esac
2585 }
2586
2587 EXESUF=$(exesuf $target_os)
2588 HOSTEXESUF=$(exesuf $host_os)
2589
2590 # set temporary file name
2591 : ${TMPDIR:=$TEMPDIR}
2592 : ${TMPDIR:=$TMP}
2593 : ${TMPDIR:=/tmp}
2594
2595 if ! check_cmd mktemp -u XXXXXX; then
2596     # simple replacement for missing mktemp
2597     # NOT SAFE FOR GENERAL USE
2598     mktemp(){
2599         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2600     }
2601 fi
2602
2603 tmpfile(){
2604     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2605         (set -C; exec > $tmp) 2>/dev/null ||
2606         die "Unable to create temporary file in $TMPDIR."
2607     append TMPFILES $tmp
2608     eval $1=$tmp
2609 }
2610
2611 trap 'rm -f -- $TMPFILES' EXIT
2612
2613 tmpfile TMPASM .asm
2614 tmpfile TMPC   .c
2615 tmpfile TMPCPP .cpp
2616 tmpfile TMPE   $EXESUF
2617 tmpfile TMPH   .h
2618 tmpfile TMPO   .o
2619 tmpfile TMPS   .S
2620 tmpfile TMPSH  .sh
2621 tmpfile TMPV   .ver
2622
2623 unset -f mktemp
2624
2625 chmod +x $TMPE
2626
2627 # make sure we can execute files in $TMPDIR
2628 cat > $TMPSH 2>> $logfile <<EOF
2629 #! /bin/sh
2630 EOF
2631 chmod +x $TMPSH >> $logfile 2>&1
2632 if ! $TMPSH >> $logfile 2>&1; then
2633     cat <<EOF
2634 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2635 variable to another directory and make sure that it is not mounted noexec.
2636 EOF
2637     die "Sanity test failed."
2638 fi
2639
2640 ccc_flags(){
2641     for flag; do
2642         case $flag in
2643             -std=c99)           echo -c99                       ;;
2644             -mcpu=*)            echo -arch ${flag#*=}           ;;
2645             -mieee)             echo -ieee                      ;;
2646             -O*|-fast)          echo $flag                      ;;
2647             -fno-math-errno)    echo -assume nomath_errno       ;;
2648             -g)                 echo -g3                        ;;
2649             -Wall)              echo -msg_enable level2         ;;
2650             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2651             -Wl,*)              echo $flag                      ;;
2652             -f*|-W*)                                            ;;
2653             *)                  echo $flag                      ;;
2654         esac
2655    done
2656 }
2657
2658 msvc_common_flags(){
2659     for flag; do
2660         case $flag in
2661             # In addition to specifying certain flags under the compiler
2662             # specific filters, they must be specified here as well or else the
2663             # generic catch all at the bottom will print the original flag.
2664             -Wall)                ;;
2665             -std=c99)             ;;
2666             # Common flags
2667             -fomit-frame-pointer) echo -Oy ;;
2668             -g)                   echo -Z7 ;;
2669             -fno-math-errno)      ;;
2670             -fno-common)          ;;
2671             -fno-signed-zeros)    ;;
2672             -fPIC)                ;;
2673             -mthumb)              ;;
2674             -march=*)             ;;
2675             -lz)                  echo zlib.lib ;;
2676             -lavifil32)           echo vfw32.lib ;;
2677             -lavicap32)           echo vfw32.lib user32.lib ;;
2678             -l*)                  echo ${flag#-l}.lib ;;
2679             *)                    echo $flag ;;
2680         esac
2681     done
2682 }
2683
2684 msvc_flags(){
2685     msvc_common_flags "$@"
2686     for flag; do
2687         case $flag in
2688             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2689                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2690                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2691                                        -wd4554 \
2692                                        -wd4996 -wd4273 ;;
2693         esac
2694     done
2695 }
2696
2697 icl_flags(){
2698     msvc_common_flags "$@"
2699     for flag; do
2700         case $flag in
2701             # Despite what Intel's documentation says -Wall, which is supported
2702             # on Windows, does enable remarks so disable them here.
2703             -Wall)                echo $flag -Qdiag-disable:remark ;;
2704             -std=c99)             echo -Qstd=c99 ;;
2705         esac
2706     done
2707 }
2708
2709 pgi_flags(){
2710     for flag; do
2711         case $flag in
2712             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2713             -fomit-frame-pointer) echo -Mnoframe ;;
2714             -g)                   echo -gopt ;;
2715             *)                    echo $flag ;;
2716         esac
2717     done
2718 }
2719
2720 suncc_flags(){
2721     for flag; do
2722         case $flag in
2723             -march=*|-mcpu=*)
2724                 case "${flag#*=}" in
2725                     native)                   echo -xtarget=native       ;;
2726                     v9|niagara)               echo -xarch=sparc          ;;
2727                     ultrasparc)               echo -xarch=sparcvis       ;;
2728                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2729                     i586|pentium)             echo -xchip=pentium        ;;
2730                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2731                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2732                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2733                     pentium4*)          echo -xtarget=pentium4           ;;
2734                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2735                     *-sse3)             echo -xarch=sse3                 ;;
2736                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2737                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2738                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2739                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2740                     bdver*)                   echo -xarch=avx            ;;
2741                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2742                     k8|opteron|athlon64|athlon-fx)
2743                                               echo -xarch=sse2a          ;;
2744                     athlon*)                  echo -xarch=pentium_proa   ;;
2745                 esac
2746                 ;;
2747             -std=c99)             echo -xc99              ;;
2748             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2749             -fPIC)                echo -KPIC -xcode=pic32 ;;
2750             -W*,*)                echo $flag              ;;
2751             -f*-*|-W*|-mimpure-text)                      ;;
2752             -shared)              echo -G                 ;;
2753             *)                    echo $flag              ;;
2754         esac
2755     done
2756 }
2757
2758 tms470_flags(){
2759     for flag; do
2760         case $flag in
2761             -march=*|-mcpu=*)
2762                 case "${flag#*=}" in
2763                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2764                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2765                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2766                     armv6*|arm11*)          echo -mv=6   ;;
2767                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2768                                             echo -mv=5e  ;;
2769                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2770                 esac
2771                 ;;
2772             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2773             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2774             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2775             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2776             -msoft-float)   echo --float_support=vfplib       ;;
2777             -O[0-3]|-mf=*)  echo $flag                        ;;
2778             -g)             echo -g -mn                       ;;
2779             -pds=*)         echo $flag                        ;;
2780             -D*|-I*)        echo $flag                        ;;
2781             --gcc|--abi=*)  echo $flag                        ;;
2782             -me)            echo $flag                        ;;
2783         esac
2784     done
2785 }
2786
2787 probe_cc(){
2788     pfx=$1
2789     _cc=$2
2790
2791     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2792     unset _ld_o _ldflags _ld_lib _ld_path
2793     unset _depflags _DEPCMD _DEPFLAGS
2794     _flags_filter=echo
2795
2796     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2797         _type=llvm_gcc
2798         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2799         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2800         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2801         _cflags_speed='-O3'
2802         _cflags_size='-Os'
2803     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2804         _type=gcc
2805         gcc_version=$($_cc --version | head -n1)
2806         gcc_basever=$($_cc -dumpversion)
2807         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2808         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2809         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2810         if ! $_cc -dumpversion | grep -q '^2\.'; then
2811             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2812         fi
2813         _cflags_speed='-O3'
2814         _cflags_size='-Os'
2815     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2816         _type=icc
2817         _ident=$($_cc --version | head -n1)
2818         _depflags='-MMD'
2819         _cflags_speed='-O3'
2820         _cflags_size='-Os'
2821         _cflags_noopt='-O1'
2822     elif $_cc -v 2>&1 | grep -q xlc; then
2823         _type=xlc
2824         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2825         _cflags_speed='-O5'
2826         _cflags_size='-O5 -qcompact'
2827     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2828         _type=ccc
2829         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2830         _DEPFLAGS='-M'
2831         _cflags_speed='-fast'
2832         _cflags_size='-O1'
2833         _flags_filter=ccc_flags
2834     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2835         test -d "$sysroot" || die "No valid sysroot specified."
2836         _type=armcc
2837         _ident=$($_cc --vsn | head -n1)
2838         armcc_conf="$PWD/armcc.conf"
2839         $_cc --arm_linux_configure                 \
2840              --arm_linux_config_file="$armcc_conf" \
2841              --configure_sysroot="$sysroot"        \
2842              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2843              die "Error creating armcc configuration file."
2844         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2845         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2846         as_default="${cross_prefix}gcc"
2847         _depflags='-MMD'
2848         _cflags_speed='-O3'
2849         _cflags_size='-Os'
2850     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2851         _type=tms470
2852         _ident=$($_cc -version | head -n1 | tr -s ' ')
2853         _flags='--gcc --abi=eabi -me'
2854         _cc_e='-ppl -fe=$@'
2855         _cc_o='-fe=$@'
2856         _depflags='-ppa -ppd=$(@:.o=.d)'
2857         _cflags_speed='-O3 -mf=5'
2858         _cflags_size='-O3 -mf=2'
2859         _flags_filter=tms470_flags
2860     elif $_cc -v 2>&1 | grep -q clang; then
2861         _type=clang
2862         _ident=$($_cc --version | head -n1)
2863         _depflags='-MMD'
2864         _cflags_speed='-O3'
2865         _cflags_size='-Os'
2866     elif $_cc -V 2>&1 | grep -q Sun; then
2867         _type=suncc
2868         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2869         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2870         _DEPFLAGS='-xM1 -xc99'
2871         _ldflags='-std=c99'
2872         _cflags_speed='-O5'
2873         _cflags_size='-O5 -xspace'
2874         _flags_filter=suncc_flags
2875     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2876         _type=pathscale
2877         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2878         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2879         _cflags_speed='-O2'
2880         _cflags_size='-Os'
2881         _flags_filter='filter_out -Wdisabled-optimization'
2882     elif $_cc -v 2>&1 | grep -q Open64; then
2883         _type=open64
2884         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2885         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2886         _cflags_speed='-O2'
2887         _cflags_size='-Os'
2888         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2889     elif $_cc -V 2>&1 | grep -q Portland; then
2890         _type=pgi
2891         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2892         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2893         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2894         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2895         _cflags_noopt="-O"
2896         _flags_filter=pgi_flags
2897     elif $_cc 2>&1 | grep -q Microsoft; then
2898         _type=msvc
2899         _ident=$($cc 2>&1 | head -n1)
2900         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2901         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2902         _cflags_speed="-O2"
2903         _cflags_size="-O1"
2904         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2905         if $_cc 2>&1 | grep -q Linker; then
2906             _ld_o='-out $@'
2907         else
2908             _ld_o='-Fe$@'
2909         fi
2910         _cc_o='-Fo $@'
2911         _cc_e='-P -Fi $@'
2912         _flags_filter=msvc_flags
2913         _ld_lib='lib%.a'
2914         _ld_path='-libpath:'
2915         _flags='-nologo'
2916         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2917         if [ $pfx = hostcc ]; then
2918             append _cflags -Dsnprintf=_snprintf
2919         fi
2920         disable stripping
2921     elif $_cc 2>&1 | grep -q Intel; then
2922         _type=icl
2923         _ident=$($cc 2>&1 | head -n1)
2924         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2925         # Not only is O3 broken on 13.x+ but it's slower on all previous versions (tested) as well
2926         _cflags_speed="-O2"
2927         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2928         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2929         if $_cc 2>&1 | grep -q Linker; then
2930             _ld_o='-out $@'
2931         else
2932             _ld_o='-Fe$@'
2933         fi
2934         _cc_o='-Fo $@'
2935         _cc_e='-P'
2936         _flags_filter=icl_flags
2937         _ld_lib='lib%.a'
2938         _ld_path='-libpath:'
2939         # -Qdiag-error to make icl error when presented with certain unknown arguments
2940         _flags='-nologo -Qdiag-error:4044,10157'
2941         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency with msvc which enables it by default
2942         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2943         if [ $pfx = hostcc ]; then
2944             append _cflags -Dsnprintf=_snprintf
2945         fi
2946     fi
2947
2948     eval ${pfx}_type=\$_type
2949     eval ${pfx}_ident=\$_ident
2950 }
2951
2952 set_ccvars(){
2953     eval ${1}_C=\${_cc_c-\${${1}_C}}
2954     eval ${1}_E=\${_cc_e-\${${1}_E}}
2955     eval ${1}_O=\${_cc_o-\${${1}_O}}
2956
2957     if [ -n "$_depflags" ]; then
2958         eval ${1}_DEPFLAGS=\$_depflags
2959     else
2960         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2961         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2962         eval DEP${1}FLAGS=\$_flags
2963     fi
2964 }
2965
2966 probe_cc cc "$cc"
2967 cflags_filter=$_flags_filter
2968 cflags_speed=$_cflags_speed
2969 cflags_size=$_cflags_size
2970 cflags_noopt=$_cflags_noopt
2971 add_cflags $_flags $_cflags
2972 cc_ldflags=$_ldflags
2973 set_ccvars CC
2974
2975 probe_cc hostcc "$host_cc"
2976 host_cflags_filter=$_flags_filter
2977 add_host_cflags  $_flags $_cflags
2978 set_ccvars HOSTCC
2979
2980 test -n "$cc_type" && enable $cc_type ||
2981     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2982
2983 : ${as_default:=$cc}
2984 : ${dep_cc_default:=$cc}
2985 : ${ld_default:=$cc}
2986 : ${host_ld_default:=$host_cc}
2987 set_default ar as dep_cc ld host_ld
2988
2989 probe_cc as "$as"
2990 asflags_filter=$_flags_filter
2991 add_asflags $_flags $_cflags
2992 set_ccvars AS
2993
2994 probe_cc ld "$ld"
2995 ldflags_filter=$_flags_filter
2996 add_ldflags $_flags $_ldflags
2997 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2998 LD_O=${_ld_o-$LD_O}
2999 LD_LIB=${_ld_lib-$LD_LIB}
3000 LD_PATH=${_ld_path-$LD_PATH}
3001
3002 probe_cc hostld "$host_ld"
3003 host_ldflags_filter=$_flags_filter
3004 add_host_ldflags $_flags $_ldflags
3005 HOSTLD_O=${_ld_o-$HOSTLD_O}
3006
3007 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3008     probe_cc depcc "$dep_cc"
3009     CCDEP=${_DEPCMD:-$DEPCMD}
3010     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3011     DEPCCFLAGS=$_flags
3012 fi
3013
3014 if $ar 2>&1 | grep -q Microsoft; then
3015     arflags="-nologo"
3016     ar_o='-out:$@'
3017 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3018     arflags="rq"
3019     ar_o='$@'
3020 else
3021     arflags="rc"
3022     ar_o='$@'
3023 fi
3024
3025 add_cflags $extra_cflags
3026 add_cxxflags $extra_cxxflags
3027 add_asflags $extra_cflags
3028
3029 if test -n "$sysroot"; then
3030     case "$cc_type" in
3031         gcc|llvm_gcc|clang)
3032             add_cppflags --sysroot="$sysroot"
3033             add_ldflags --sysroot="$sysroot"
3034         ;;
3035         tms470)
3036             add_cppflags -I"$sysinclude"
3037             add_ldflags  --sysroot="$sysroot"
3038         ;;
3039     esac
3040 fi
3041
3042 if test "$cpu" = host; then
3043     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
3044
3045     case "$cc_type" in
3046         gcc|llvm_gcc)
3047             check_native(){
3048                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3049                 sed -n "/cc1.*$1=/{
3050                             s/.*$1=\\([^ ]*\\).*/\\1/
3051                             p
3052                             q
3053                         }" $TMPE
3054             }
3055             cpu=$(check_native -march || check_native -mcpu)
3056         ;;
3057     esac
3058
3059     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
3060 fi
3061
3062 # Deal with common $arch aliases
3063 case "$arch" in
3064     aarch64|arm64)
3065         arch="aarch64"
3066     ;;
3067     arm*|iPad*)
3068         arch="arm"
3069     ;;
3070     mips*|IP*)
3071         arch="mips"
3072     ;;
3073     parisc*|hppa*)
3074         arch="parisc"
3075     ;;
3076     "Power Macintosh"|ppc*|powerpc*)
3077         arch="ppc"
3078     ;;
3079     s390|s390x)
3080         arch="s390"
3081     ;;
3082     sh4|sh)
3083         arch="sh4"
3084     ;;
3085     sun4u|sparc*)
3086         arch="sparc"
3087     ;;
3088     tilegx|tile-gx)
3089         arch="tilegx"
3090     ;;
3091     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3092         arch="x86"
3093     ;;
3094 esac
3095
3096 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3097 enable $arch
3098
3099 # Add processor-specific flags
3100 if enabled aarch64; then
3101
3102     case $cpu in
3103         armv*)
3104             cpuflags="-march=$cpu"
3105         ;;
3106         *)
3107             cpuflags="-mcpu=$cpu"
3108         ;;
3109     esac
3110
3111 elif enabled alpha; then
3112
3113     cpuflags="-mcpu=$cpu"
3114
3115 elif enabled arm; then
3116
3117     check_arm_arch() {
3118         check_cpp_condition stddef.h \
3119             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3120             $cpuflags
3121     }
3122
3123     probe_arm_arch() {
3124         if   check_arm_arch 4;        then echo armv4;
3125         elif check_arm_arch 4T;       then echo armv4t;
3126         elif check_arm_arch 5;        then echo armv5;
3127         elif check_arm_arch 5E;       then echo armv5e;
3128         elif check_arm_arch 5T;       then echo armv5t;
3129         elif check_arm_arch 5TE;      then echo armv5te;
3130         elif check_arm_arch 5TEJ;     then echo armv5te;
3131         elif check_arm_arch 6;        then echo armv6;
3132         elif check_arm_arch 6J;       then echo armv6j;
3133         elif check_arm_arch 6K;       then echo armv6k;
3134         elif check_arm_arch 6Z;       then echo armv6z;
3135         elif check_arm_arch 6ZK;      then echo armv6zk;
3136         elif check_arm_arch 6T2;      then echo armv6t2;
3137         elif check_arm_arch 7;        then echo armv7;
3138         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3139         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3140         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3141         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3142         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3143         fi
3144     }
3145
3146     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3147
3148     case $cpu in
3149         armv*)
3150             cpuflags="-march=$cpu"
3151             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3152         ;;
3153         *)
3154             cpuflags="-mcpu=$cpu"
3155             case $cpu in
3156                 cortex-a*)                               subarch=armv7a  ;;
3157                 cortex-r*)                               subarch=armv7r  ;;
3158                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3159                 arm11*)                                  subarch=armv6   ;;
3160                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3161                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3162                 *)                             subarch=$(probe_arm_arch) ;;
3163             esac
3164         ;;
3165     esac
3166
3167     case "$subarch" in
3168         armv5t*)    enable fast_clz                ;;
3169         armv[6-8]*) enable fast_clz fast_unaligned ;;
3170     esac
3171
3172 elif enabled avr32; then
3173
3174     case $cpu in
3175         ap7[02]0[0-2])
3176             subarch="avr32_ap"
3177             cpuflags="-mpart=$cpu"
3178         ;;
3179         ap)
3180             subarch="avr32_ap"
3181             cpuflags="-march=$cpu"
3182         ;;
3183         uc3[ab]*)
3184             subarch="avr32_uc"
3185             cpuflags="-mcpu=$cpu"
3186         ;;
3187         uc)
3188             subarch="avr32_uc"
3189             cpuflags="-march=$cpu"
3190         ;;
3191     esac
3192
3193 elif enabled bfin; then
3194
3195     cpuflags="-mcpu=$cpu"
3196
3197 elif enabled mips; then
3198
3199     cpuflags="-march=$cpu"
3200
3201     case $cpu in
3202         24kc)
3203             disable mipsfpu
3204             disable mipsdspr1
3205             disable mipsdspr2
3206         ;;
3207         24kf*)
3208             disable mipsdspr1
3209             disable mipsdspr2
3210         ;;
3211         24kec|34kc|1004kc)
3212             disable mipsfpu
3213             disable mipsdspr2
3214         ;;
3215         24kef*|34kf*|1004kf*)
3216             disable mipsdspr2
3217         ;;
3218         74kc)
3219             disable mipsfpu
3220         ;;
3221     esac
3222
3223 elif enabled ppc; then
3224
3225     case $(tolower $cpu) in
3226         601|ppc601|powerpc601)
3227             cpuflags="-mcpu=601"
3228             disable altivec
3229         ;;
3230         603*|ppc603*|powerpc603*)
3231             cpuflags="-mcpu=603"
3232             disable altivec
3233         ;;
3234         604*|ppc604*|powerpc604*)
3235             cpuflags="-mcpu=604"
3236             disable altivec
3237         ;;
3238         g3|75*|ppc75*|powerpc75*)
3239             cpuflags="-mcpu=750"
3240             disable altivec
3241         ;;
3242         g4|745*|ppc745*|powerpc745*)
3243             cpuflags="-mcpu=7450"
3244         ;;
3245         74*|ppc74*|powerpc74*)
3246             cpuflags="-mcpu=7400"
3247         ;;
3248         g5|970|ppc970|powerpc970)
3249             cpuflags="-mcpu=970"
3250         ;;
3251         power[3-7]*)
3252             cpuflags="-mcpu=$cpu"
3253         ;;
3254         cell)
3255             cpuflags="-mcpu=cell"
3256             enable ldbrx
3257         ;;
3258         e500mc)
3259             cpuflags="-mcpu=e500mc"
3260             disable altivec
3261         ;;
3262         e500v2)
3263             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3264             disable altivec
3265         ;;
3266         e500)
3267             cpuflags="-mcpu=8540 -mhard-float"
3268             disable altivec
3269         ;;
3270     esac
3271
3272 elif enabled sparc; then
3273
3274     case $cpu in
3275         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3276             cpuflags="-mcpu=$cpu"
3277             disable vis
3278         ;;
3279         ultrasparc*|niagara[234])
3280             cpuflags="-mcpu=$cpu"
3281         ;;
3282     esac
3283
3284 elif enabled x86; then
3285
3286     case $cpu in
3287         i[345]86|pentium)
3288             cpuflags="-march=$cpu"
3289             disable mmx
3290         ;;
3291         # targets that do NOT support nopl and conditional mov (cmov)
3292         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3293             cpuflags="-march=$cpu"
3294             disable i686
3295         ;;
3296         # targets that do support nopl and conditional mov (cmov)
3297         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3298             cpuflags="-march=$cpu"
3299             enable i686
3300             enable fast_cmov
3301         ;;
3302         # targets that do support conditional mov but on which it's slow
3303         pentium4|pentium4m|prescott|nocona)
3304             cpuflags="-march=$cpu"
3305             enable i686
3306             disable fast_cmov
3307         ;;
3308     esac
3309
3310 fi
3311
3312 if [ "$cpu" != generic ]; then
3313     add_cflags  $cpuflags
3314     add_asflags $cpuflags
3315 fi
3316
3317 # compiler sanity check
3318 check_exec <<EOF
3319 int main(void){ return 0; }
3320 EOF
3321 if test "$?" != 0; then
3322     echo "$cc is unable to create an executable file."
3323     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3324         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3325         echo "Only do this if you know what cross compiling means."
3326     fi
3327     die "C compiler test failed."
3328 fi
3329
3330 add_cppflags -D_ISOC99_SOURCE
3331 add_cxxflags -D__STDC_CONSTANT_MACROS
3332 check_cflags -std=c99
3333 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3334 #include <stdlib.h>
3335 EOF
3336 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3337 #include <stdlib.h>
3338 EOF
3339
3340 check_host_cflags -std=c99
3341 check_host_cflags -Wall
3342
3343 check_64bit(){
3344     arch32=$1
3345     arch64=$2
3346     expr=$3
3347     check_code cc "" "int test[2*($expr) - 1]" &&
3348         subarch=$arch64 || subarch=$arch32
3349 }
3350
3351 case "$arch" in
3352     aarch64|alpha|ia64)
3353         spic=$shared
3354     ;;
3355     mips)
3356         check_64bit mips mips64 '_MIPS_SIM > 1'
3357         spic=$shared
3358     ;;
3359     parisc)
3360         check_64bit parisc parisc64 'sizeof(void *) > 4'
3361         spic=$shared
3362     ;;
3363     ppc)
3364         check_64bit ppc ppc64 'sizeof(void *) > 4'
3365         spic=$shared
3366     ;;
3367     sparc)
3368         check_64bit sparc sparc64 'sizeof(void *) > 4'
3369         spic=$shared
3370     ;;
3371     x86)
3372         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3373         if test "$subarch" = "x86_64"; then
3374             spic=$shared
3375         fi
3376     ;;
3377     ppc)
3378         check_cc <<EOF && subarch="ppc64"
3379         int test[(int)sizeof(char*) - 7];
3380 EOF
3381     ;;
3382 esac
3383
3384 enable $subarch
3385 enabled spic && enable_weak pic
3386
3387 # OS specific
3388 case $target_os in
3389     haiku)
3390         prefix_default="/boot/common"
3391         network_extralibs="-lnetwork"
3392         host_libs=
3393         ;;
3394     sunos)
3395         FFSERVERLDFLAGS=""
3396         SHFLAGS='-shared -Wl,-h,$$(@F)'
3397         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3398         network_extralibs="-lsocket -lnsl"
3399         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3400         # When using suncc to build, the Solaris linker will mark
3401         # an executable with each instruction set encountered by
3402         # the Solaris assembler.  As our libraries contain their own
3403         # guards for processor-specific code, instead suppress
3404         # generation of the HWCAPS ELF section on Solaris x86 only.
3405         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3406         nm_default='nm -P -g'
3407         ;;
3408     netbsd)
3409         disable symver
3410         oss_indev_extralibs="-lossaudio"
3411         oss_outdev_extralibs="-lossaudio"
3412         enabled gcc || check_ldflags -Wl,-zmuldefs
3413         ;;
3414     openbsd|bitrig)
3415         disable symver
3416         SHFLAGS='-shared'
3417         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3418         SLIB_INSTALL_LINKS=
3419         oss_indev_extralibs="-lossaudio"
3420         oss_outdev_extralibs="-lossaudio"
3421         ;;
3422     dragonfly)
3423         disable symver
3424         ;;
3425     freebsd)
3426         ;;
3427     bsd/os)
3428         add_extralibs -lpoll -lgnugetopt
3429         strip="strip -d"
3430         ;;
3431     darwin)
3432         gas="gas-preprocessor.pl $cc"
3433         enabled ppc && add_asflags -force_cpusubtype_ALL
3434         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3435         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3436         strip="${strip} -x"
3437         add_ldflags -Wl,-dynamic,-search_paths_first
3438         SLIBSUF=".dylib"
3439         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3440         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3441         FFSERVERLDFLAGS=-Wl,-bind_at_load
3442         objformat="macho"
3443         enabled x86_64 && objformat="macho64"
3444         enabled_any pic shared ||
3445             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3446         ;;
3447     mingw32*)
3448         if test $target_os = "mingw32ce"; then
3449             disable network
3450         else
3451             target_os=mingw32
3452         fi
3453         LIBTARGET=i386
3454         if enabled x86_64; then
3455             LIBTARGET="i386:x86-64"
3456         elif enabled arm; then
3457             LIBTARGET=arm-wince
3458         fi
3459         check_ldflags -Wl,--nxcompat
3460         check_ldflags -Wl,--dynamicbase
3461         shlibdir_default="$bindir_default"
3462         SLIBPREF=""
3463         SLIBSUF=".dll"
3464         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3465         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3466         dlltool="${cross_prefix}dlltool"
3467         if check_cmd lib.exe -list; then
3468             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3469             if enabled x86_64; then
3470                 LIBTARGET=x64
3471             fi
3472         elif check_cmd $dlltool --version; then
3473             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3474         fi
3475         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3476         SLIB_INSTALL_LINKS=
3477         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3478         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3479         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3480         objformat="win32"
3481         ranlib=:
3482         enable dos_paths
3483         ;;
3484     win32|win64)
3485         if enabled shared; then
3486             # Link to the import library instead of the normal static library
3487             # for shared libs.
3488             LD_LIB='%.lib'
3489             # Cannot build shared and static libraries at the same time with
3490             # MSVC.
3491             disable static
3492         fi
3493         shlibdir_default="$bindir_default"
3494         SLIBPREF=""
3495         SLIBSUF=".dll"
3496         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3497         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3498         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3499         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3500         SLIB_INSTALL_LINKS=
3501         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3502         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3503         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3504         objformat="win32"
3505         ranlib=:
3506         enable dos_paths
3507         ;;
3508     cygwin*)
3509         target_os=cygwin
3510         shlibdir_default="$bindir_default"
3511         SLIBPREF="cyg"
3512         SLIBSUF=".dll"
3513         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3514         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3515         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3516         SLIB_INSTALL_LINKS=
3517         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3518         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3519         objformat="win32"
3520         enable dos_paths
3521         ;;
3522     *-dos|freedos|opendos)
3523         network_extralibs="-lsocket"
3524         objformat="coff"
3525         enable dos_paths
3526         add_cppflags -U__STRICT_ANSI__
3527         ;;
3528     linux)
3529         enable dv1394
3530         ;;
3531     irix*)
3532         target_os=irix
3533         ranlib="echo ignoring ranlib"
3534         ;;
3535     os/2*)
3536         strip="lxlite -CS"
3537         ln_s="cp -f"
3538         objformat="aout"
3539         add_cppflags -D_GNU_SOURCE
3540         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3541         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3542         FFSERVERLDFLAGS=""
3543         LIBSUF="_s.a"
3544         SLIBPREF=""
3545         SLIBSUF=".dll"
3546         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3547         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3548         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3549             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3550             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3551             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3552             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3553             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3554         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3555             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3556         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3557         enable dos_paths
3558         enable_weak os2threads
3559         ;;
3560     gnu/kfreebsd)
3561         add_cppflags -D_BSD_SOURCE
3562         ;;
3563     gnu)
3564         ;;
3565     qnx)
3566         add_cppflags -D_QNX_SOURCE
3567         network_extralibs="-lsocket"
3568         ;;
3569     symbian)
3570         SLIBSUF=".dll"
3571         enable dos_paths
3572         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3573         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3574         add_ldflags -Wl,--target1-abs,--no-undefined \
3575                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3576                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3577         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3578                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3579                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3580         ;;
3581     osf1)
3582         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3583         FFSERVERLDFLAGS=
3584         ;;
3585     minix)
3586         ;;
3587     plan9)
3588         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3589                      -D_REENTRANT_SOURCE        \
3590                      -D_RESEARCH_SOURCE         \
3591                      -DFD_SETSIZE=96            \
3592                      -DHAVE_SOCK_OPTS
3593         add_compat strtod.o strtod=avpriv_strtod
3594         network_extralibs='-lbsd'
3595         exeobjs=compat/plan9/main.o
3596         disable ffserver
3597         cp_f='cp'
3598         ;;
3599     none)
3600         ;;
3601     *)
3602         die "Unknown OS '$target_os'."
3603         ;;
3604 esac
3605
3606 # determine libc flavour
3607
3608 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3609 if check_cpp_condition features.h "defined __UCLIBC__"; then
3610     libc_type=uclibc
3611     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3612 elif check_cpp_condition features.h "defined __GLIBC__"; then
3613     libc_type=glibc
3614     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3615 # MinGW headers can be installed on Cygwin, so check for newlib first.
3616 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3617     libc_type=newlib
3618     add_cppflags -U__STRICT_ANSI__
3619 elif check_header _mingw.h; then
3620     libc_type=mingw
3621     check_cpp_condition _mingw.h \
3622         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3623             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3624         die "ERROR: MinGW runtime version must be >= 3.15."
3625     add_cppflags -U__STRICT_ANSI__
3626     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3627             __MINGW64_VERSION_MAJOR < 3"; then
3628         add_compat msvcrt/snprintf.o
3629         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3630     else
3631         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3632     fi
3633 elif check_func_headers stdlib.h _get_doserrno; then
3634     libc_type=msvcrt
3635     add_compat strtod.o strtod=avpriv_strtod
3636     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3637                                  _snprintf=avpriv_snprintf  \
3638                                  vsnprintf=avpriv_vsnprintf
3639     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3640     # 0x601 by default unless something else is set by the user.
3641     # This can easily lead to us detecting functions only present
3642     # in such new versions and producing binaries requiring windows 7.0.
3643     # Therefore explicitly set the default to XP unless the user has
3644     # set something else on the command line.
3645     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3646 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3647     libc_type=klibc
3648 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3649     libc_type=bionic
3650     add_compat strtod.o strtod=avpriv_strtod
3651 fi
3652
3653 test -n "$libc_type" && enable $libc_type
3654
3655 # hacks for compiler/libc/os combinations
3656
3657 if enabled_all tms470 glibc; then
3658     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3659     add_cppflags -D__USER_LABEL_PREFIX__=
3660     add_cppflags -D__builtin_memset=memset
3661     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3662     add_cflags   -pds=48    # incompatible redefinition of macro
3663 fi
3664
3665 if enabled_all ccc glibc; then
3666     add_ldflags -Wl,-z,now  # calls to libots crash without this
3667 fi
3668
3669 esc(){
3670     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3671 }
3672
3673 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3674
3675 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3676
3677 set_default $PATHS_LIST
3678 set_default nm
3679
3680 # we need to build at least one lib type
3681 if ! enabled_any static shared; then
3682     cat <<EOF
3683 At least one library type must be built.
3684 Specify --enable-static to build the static libraries or --enable-shared to
3685 build the shared libraries as well. To only build the shared libraries specify
3686 --disable-static in addition to --enable-shared.
3687 EOF
3688     exit 1;
3689 fi
3690
3691 die_license_disabled() {
3692     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3693 }
3694
3695 die_license_disabled_gpl() {
3696     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3697 }
3698
3699 die_license_disabled gpl frei0r
3700 die_license_disabled gpl libcdio
3701 die_license_disabled gpl libutvideo
3702 die_license_disabled gpl libvidstab
3703 die_license_disabled gpl libx264
3704 die_license_disabled gpl libxavs
3705 die_license_disabled gpl libxvid
3706 die_license_disabled gpl x11grab
3707
3708 die_license_disabled nonfree libaacplus
3709 die_license_disabled nonfree libfaac
3710 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3711 enabled gpl && die_license_disabled_gpl nonfree openssl
3712
3713 die_license_disabled version3 libopencore_amrnb
3714 die_license_disabled version3 libopencore_amrwb
3715 die_license_disabled version3 libvo_aacenc
3716 die_license_disabled version3 libvo_amrwbenc
3717
3718 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3719
3720 disabled optimizations || check_cflags -fomit-frame-pointer
3721
3722 enable_weak_pic() {
3723     disabled pic && return
3724     enable pic
3725     add_cppflags -DPIC
3726     case "$target_os" in
3727     mingw*|cygwin*)
3728         ;;
3729     *)
3730         add_cflags -fPIC
3731         ;;
3732     esac
3733     add_asflags  -fPIC
3734 }
3735
3736 enabled pic && enable_weak_pic
3737
3738 check_cc <<EOF || die "Symbol mangling check failed."
3739 int ff_extern;
3740 EOF
3741 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3742 extern_prefix=${sym%%ff_extern*}
3743
3744 check_cc <<EOF && enable_weak inline_asm
3745 void foo(void) { __asm__ volatile ("" ::); }
3746 EOF
3747
3748 _restrict=
3749 for restrict_keyword in restrict __restrict__ __restrict; do
3750     check_cc <<EOF && _restrict=$restrict_keyword && break
3751 void foo(char * $restrict_keyword p);
3752 EOF
3753 done
3754
3755 check_cc <<EOF && enable attribute_packed
3756 struct { int x; } __attribute__((packed)) x;
3757 EOF
3758
3759 check_cc <<EOF && enable attribute_may_alias
3760 union { int x; } __attribute__((may_alias)) x;
3761 EOF
3762
3763 check_cc <<EOF || die "endian test failed"
3764 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3765 EOF
3766 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3767
3768 if enabled alpha; then
3769
3770     check_cflags -mieee
3771
3772 elif enabled arm; then
3773
3774     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3775 float func(float a, float b){ return a+b; }
3776 EOF
3777
3778     enabled thumb && check_cflags -mthumb || check_cflags -marm
3779     nogas=die
3780
3781     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3782         enable vfp_args
3783     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3784         case "${cross_prefix:-$cc}" in
3785             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3786             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3787 __asm__ (".eabi_attribute 28, 1");
3788 int main(void) { return 0; }
3789 EOF
3790         esac
3791         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3792     fi
3793
3794     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3795     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3796     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3797     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3798     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3799     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3800
3801     [ $target_os = linux ] ||
3802         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3803             $ARCH_EXT_LIST_ARM
3804
3805     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3806     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3807
3808     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3809
3810 elif enabled mips; then
3811
3812     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3813     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3814      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3815     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3816      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3817     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3818      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3819     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3820      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3821
3822 elif enabled parisc; then
3823
3824     if enabled gcc; then
3825         case $($cc -dumpversion) in
3826             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3827         esac
3828     fi
3829
3830 elif enabled ppc; then
3831
3832     enable local_aligned_8 local_aligned_16
3833
3834     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3835     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3836     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3837     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3838
3839     # AltiVec flags: The FSF version of GCC differs from the Apple version
3840     if enabled altivec; then
3841         nogas=warn
3842         check_cflags -maltivec -mabi=altivec &&
3843         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3844         check_cflags -faltivec
3845
3846         # check if our compiler supports Motorola AltiVec C API
3847         check_cc <<EOF || disable altivec
3848 $inc_altivec_h
3849 int main(void) {
3850     vector signed int v1 = (vector signed int) { 0 };
3851     vector signed int v2 = (vector signed int) { 1 };
3852     v1 = vec_add(v1, v2);
3853     return 0;
3854 }
3855 EOF
3856
3857         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3858     fi
3859
3860 elif enabled sparc; then
3861
3862     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3863
3864 elif enabled x86; then
3865
3866     check_builtin rdtsc    intrin.h   "__rdtsc()"
3867     check_builtin mm_empty mmintrin.h "_mm_empty()"
3868
3869     enable local_aligned_8 local_aligned_16
3870
3871     # check whether EBP is available on x86
3872     # As 'i' is stored on the stack, this program will crash
3873     # if the base pointer is used to access it because the
3874     # base pointer is cleared in the inline assembly code.
3875     check_exec_crash <<EOF && enable ebp_available
3876 volatile int i=0;
3877 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3878 return i;
3879 EOF
3880
3881     # check whether EBX is available on x86
3882     check_inline_asm ebx_available '""::"b"(0)' &&
3883         check_inline_asm ebx_available '"":::"%ebx"'
3884
3885     # check whether xmm clobbers are supported
3886     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3887
3888     # check whether binutils is new enough to compile SSSE3/MMXEXT
3889     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3890     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3891
3892     if ! disabled_any asm mmx yasm; then
3893         if check_cmd $yasmexe --version; then
3894             enabled x86_64 && yasm_extra="-m amd64"
3895             yasm_debug="-g dwarf2"
3896         elif check_cmd nasm -v; then
3897             yasmexe=nasm
3898             yasm_debug="-g -F dwarf"
3899             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3900         fi
3901
3902         YASMFLAGS="-f $objformat $yasm_extra"
3903         enabled pic               && append YASMFLAGS "-DPIC"
3904         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3905         case "$objformat" in
3906             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3907         esac
3908
3909         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3910             die "yasm not found, use --disable-yasm for a crippled build"
3911         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3912         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3913         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3914     fi
3915
3916     case "$cpu" in
3917         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3918             disable fast_clz
3919         ;;
3920     esac
3921
3922 fi
3923
3924 if enabled asm; then
3925     as=${gas:=$as}
3926     check_as <<EOF && enable gnu_as || \
3927         $nogas "GNU assembler not found, install gas-preprocessor"
3928 .macro m n
3929 \n: .int 0
3930 .endm
3931 m x
3932 EOF
3933 fi
3934
3935 check_ldflags -Wl,--as-needed
3936
3937 if check_func dlopen; then
3938     ldl=
3939 elif check_func dlopen -ldl; then
3940     ldl=-ldl
3941 fi
3942
3943 if ! disabled network; then
3944     check_type "sys/types.h sys/socket.h" socklen_t
3945     check_type netdb.h "struct addrinfo"
3946     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3947     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3948     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3949     check_type netinet/in.h "struct sockaddr_in6"
3950     check_type poll.h "struct pollfd"
3951     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3952     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3953     check_type netinet/sctp.h "struct sctp_event_subscribe"
3954     check_func getaddrinfo $network_extralibs
3955     check_func getservbyport $network_extralibs
3956     # Prefer arpa/inet.h over winsock2
3957     if check_header arpa/inet.h ; then
3958         check_func closesocket
3959     elif check_header winsock2.h ; then
3960         check_func_headers winsock2.h closesocket -lws2 &&
3961             network_extralibs="-lws2" ||
3962         { check_func_headers winsock2.h closesocket -lws2_32 &&
3963             network_extralibs="-lws2_32"; }
3964         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3965         check_type ws2tcpip.h socklen_t
3966         check_type ws2tcpip.h "struct addrinfo"
3967         check_type ws2tcpip.h "struct group_source_req"
3968         check_type ws2tcpip.h "struct ip_mreq_source"
3969         check_type ws2tcpip.h "struct ipv6_mreq"
3970         check_type winsock2.h "struct pollfd"
3971         check_type ws2tcpip.h "struct sockaddr_in6"
3972         check_type ws2tcpip.h "struct sockaddr_storage"
3973         check_struct winsock2.h "struct sockaddr" sa_len
3974     else
3975         disable network
3976     fi
3977 fi
3978
3979 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3980 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3981
3982 check_func  access
3983 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3984 check_func  fcntl
3985 check_func  fork
3986 check_func_headers stdlib.h getenv
3987 check_func  gethrtime
3988 check_func  getopt
3989 check_func  getrusage
3990 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3991 check_func  gettimeofday
3992 check_func  inet_aton $network_extralibs
3993 check_func  isatty
3994 check_func  localtime_r
3995 check_func  ${malloc_prefix}memalign            && enable memalign
3996 check_func  mkstemp
3997 check_func  mmap
3998 check_func  mprotect
3999 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4000 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4001 check_func  setrlimit
4002 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4003 check_func  strerror_r
4004 check_func  sched_getaffinity
4005 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4006 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4007 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4008 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4009 check_func  sysconf
4010 check_func  sysctl
4011 check_func  usleep
4012 check_func_headers conio.h kbhit
4013 check_func_headers windows.h PeekNamedPipe
4014 check_func_headers io.h setmode
4015 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4016 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4017 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4018 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4019 check_func_headers windows.h GetProcessAffinityMask
4020 check_func_headers windows.h GetProcessTimes
4021 check_func_headers windows.h GetSystemTimeAsFileTime
4022 check_func_headers windows.h MapViewOfFile
4023 check_func_headers windows.h SetConsoleTextAttribute
4024 check_func_headers windows.h Sleep
4025 check_func_headers windows.h VirtualAlloc
4026 check_func_headers glob.h glob
4027 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4028
4029 check_header cl/cl.h
4030 check_header direct.h
4031 check_header dlfcn.h
4032 check_header dxva.h
4033 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4034 check_header io.h
4035 check_header libcrystalhd/libcrystalhd_if.h
4036 check_header malloc.h
4037 check_header poll.h
4038 check_header sys/mman.h
4039 check_header sys/param.h
4040 check_header sys/resource.h
4041 check_header sys/select.h
4042 check_header sys/time.h
4043 check_header termios.h
4044 check_header unistd.h
4045 check_header vdpau/vdpau.h
4046 check_header vdpau/vdpau_x11.h
4047 check_header VideoDecodeAcceleration/VDADecoder.h
4048 check_header windows.h
4049 check_header X11/extensions/XvMClib.h
4050 check_header asm/types.h
4051
4052 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4053 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4054
4055 if ! disabled w32threads && ! enabled pthreads; then
4056     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4057 fi
4058
4059 # check for some common methods of building with pthread support
4060 # do this before the optional library checks as some of them require pthreads
4061 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4062     enable pthreads
4063     if check_func pthread_create; then
4064         :
4065     elif check_func pthread_create -pthread; then
4066         add_cflags -pthread
4067         add_extralibs -pthread
4068     elif check_func pthread_create -pthreads; then
4069         add_cflags -pthreads
4070         add_extralibs -pthreads
4071     elif check_func pthread_create -lpthreadGC2; then
4072         add_extralibs -lpthreadGC2
4073     elif ! check_lib pthread.h pthread_create -lpthread; then
4074         disable pthreads
4075     fi
4076 fi
4077
4078 for thread in $THREADS_LIST; do
4079     if enabled $thread; then
4080         test -n "$thread_type" &&
4081             die "ERROR: Only one thread type must be selected." ||
4082             thread_type="$thread"
4083     fi
4084 done
4085
4086 if enabled pthreads; then
4087   check_func pthread_cancel
4088 fi
4089
4090 enabled sync_val_compare_and_swap && enable atomics_gcc
4091 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4092 enabled MemoryBarrier && enable atomics_win32
4093
4094 check_lib math.h sin -lm && LIBM="-lm"
4095 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4096
4097 atan2f_args=2
4098 ldexpf_args=2
4099 powf_args=2
4100
4101 for func in $MATH_FUNCS; do
4102     eval check_mathfunc $func \${${func}_args:-1}
4103 done
4104
4105 # these are off by default, so fail if requested and not available
4106 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
4107                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4108                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4109 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4110 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4111 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4112 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4113 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4114 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
4115 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
4116 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
4117                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4118                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4119 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
4120 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4121 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4122 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"
4123 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
4124 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4125 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4126                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4127                         done || die "ERROR: libgsm not found"; }
4128 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4129 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4130 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4131 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4132 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4133 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4134 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4135 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4136                          check_lib openjpeg.h opj_version -lopenjpeg ||
4137                          die "ERROR: libopenjpeg not found"; }
4138 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4139 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4140 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4141 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4142 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4143 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4144 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4145 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4146 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4147     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4148     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4149 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4150 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4151                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4152                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4153 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4154 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4155 enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4156 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4157 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4158 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4159 enabled libvpx     && {
4160     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4161                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4162     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 ||
4163                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4164     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4165     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4166 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4167 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4168                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4169                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4170 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4171 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4172 enabled libzmq     && require_pkg_config libzmq zmq.h zmq_ctx_new
4173 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4174                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4175                         die "ERROR: openal not found"; } &&
4176                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4177                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4178 enabled opencl     && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4179                         check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4180                         die "ERROR: opencl not found"; } &&
4181                       { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4182                         check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4183                         die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4184 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4185                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4186                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4187                         die "ERROR: openssl not found"; }
4188
4189 if enabled gnutls; then
4190     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4191     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4192 fi
4193
4194 # libdc1394 check
4195 if enabled libdc1394; then
4196     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4197         enable libdc1394_2; } ||
4198     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4199         enable libdc1394_1; } ||
4200     die "ERROR: No version of libdc1394 found "
4201 fi
4202
4203 SDL_CONFIG="${cross_prefix}sdl-config"
4204 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4205     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4206     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4207     enable sdl
4208 else
4209   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4210     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4211     sdl_libs=$("${SDL_CONFIG}" --libs)
4212     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4213     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4214     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4215     enable sdl
4216   fi
4217 fi
4218 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4219
4220 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4221 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4222 perl --version > /dev/null 2>&1 && enable perl || disable perl
4223 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4224 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4225
4226 check_header linux/fb.h
4227 check_header linux/videodev.h
4228 check_header linux/videodev2.h
4229 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4230
4231 check_header sys/videoio.h
4232
4233 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4234 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4235 # w32api 3.12 had it defined wrong
4236 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4237
4238 check_type "dshow.h" IBaseFilter
4239
4240 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4241 { check_header dev/bktr/ioctl_meteor.h &&
4242   check_header dev/bktr/ioctl_bt848.h; } ||
4243 { check_header machine/ioctl_meteor.h &&
4244   check_header machine/ioctl_bt848.h; } ||
4245 { check_header dev/video/meteor/ioctl_meteor.h &&
4246   check_header dev/video/bktr/ioctl_bt848.h; } ||
4247 check_header dev/ic/bt8xx.h
4248
4249 check_header sndio.h
4250 if check_struct sys/soundcard.h audio_buf_info bytes; then
4251     enable_safe sys/soundcard.h
4252 else
4253     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4254     #include <sys/soundcard.h>
4255     audio_buf_info abc;
4256 EOF
4257 fi
4258 check_header soundcard.h
4259
4260 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4261
4262 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4263     check_func jack_port_get_latency_range -ljack
4264
4265 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4266
4267 if enabled libcdio; then
4268     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4269     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4270     die "ERROR: libcdio-paranoia not found"
4271 fi
4272
4273 enabled x11grab                                           &&
4274 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4275 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4276 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4277
4278 enabled vaapi &&
4279     check_lib va/va.h vaInitialize -lva ||
4280     disable vaapi
4281
4282 enabled vdpau &&
4283     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4284     disable vdpau
4285
4286 # Funny iconv installations are not unusual, so check it after all flags have been set
4287 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4288
4289 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4290
4291 # add some useful compiler flags if supported
4292 check_cflags -Wdeclaration-after-statement
4293 check_cflags -Wall
4294 check_cflags -Wno-parentheses
4295 check_cflags -Wno-switch
4296 check_cflags -Wno-format-zero-length
4297 check_cflags -Wdisabled-optimization
4298 check_cflags -Wpointer-arith
4299 check_cflags -Wredundant-decls
4300 check_cflags -Wno-pointer-sign
4301 check_cflags -Wwrite-strings
4302 check_cflags -Wtype-limits
4303 check_cflags -Wundef
4304 check_cflags -Wmissing-prototypes
4305 check_cflags -Wno-pointer-to-int-cast
4306 check_cflags -Wstrict-prototypes
4307 enabled extra_warnings && check_cflags -Winline
4308
4309 # add some linker flags
4310 check_ldflags -Wl,--warn-common
4311 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4312 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4313
4314 enabled xmm_clobber_test &&
4315     check_ldflags -Wl,--wrap,avcodec_open2              \
4316                   -Wl,--wrap,avcodec_decode_audio4      \
4317                   -Wl,--wrap,avcodec_decode_video2      \
4318                   -Wl,--wrap,avcodec_decode_subtitle2   \
4319                   -Wl,--wrap,avcodec_encode_audio2      \
4320                   -Wl,--wrap,avcodec_encode_video       \
4321                   -Wl,--wrap,avcodec_encode_subtitle    \
4322                   -Wl,--wrap,sws_scale ||
4323     disable xmm_clobber_test
4324
4325 echo "X{};" > $TMPV
4326 if test_ldflags -Wl,--version-script,$TMPV; then
4327     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4328     check_cc <<EOF && enable symver_asm_label
4329 void ff_foo(void) __asm__ ("av_foo@VERSION");
4330 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4331 EOF
4332     check_cc <<EOF && enable symver_gnu_asm
4333 __asm__(".symver ff_foo,av_foo@VERSION");
4334 void ff_foo(void) {}
4335 EOF
4336 fi
4337
4338 if [ -z "$optflags" ]; then
4339     if enabled small; then
4340         optflags=$cflags_size
4341     elif enabled optimizations; then
4342         optflags=$cflags_speed
4343     else
4344         optflags=$cflags_noopt
4345     fi
4346 fi
4347
4348 check_optflags(){
4349     check_cflags "$@"
4350     enabled lto && check_ldflags "$@"
4351 }
4352
4353
4354 if enabled lto; then
4355     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4356     check_cflags  -flto
4357     check_ldflags -flto $cpuflags
4358 fi
4359
4360 check_optflags $optflags
4361 check_optflags -fno-math-errno
4362 check_optflags -fno-signed-zeros
4363
4364 enabled ftrapv && check_cflags -ftrapv
4365
4366 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4367 int x;
4368 EOF
4369
4370
4371 if enabled icc; then
4372     # Just warnings, no remarks
4373     check_cflags -w1
4374     # -wd: Disable following warnings
4375     # 144, 167, 556: -Wno-pointer-sign
4376     # 188: enumerated type mixed with another type
4377     # 1292: attribute "foo" ignored
4378     # 1419: external declaration in primary source file
4379     # 10006: ignoring unknown option -fno-signed-zeros
4380     # 10148: ignoring unknown option -Wno-parentheses
4381     # 10156: ignoring option '-W'; no argument required
4382     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4383     # 11030: Warning unknown option --as-needed
4384     # 10156: ignoring option '-export'; no argument required
4385     check_ldflags -wd10156,11030
4386     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4387     enable ebp_available
4388     if enabled x86_32; then
4389         icc_version=$($cc -dumpversion)
4390         test ${icc_version%%.*} -ge 11 &&
4391             check_cflags -falign-stack=maintain-16-byte ||
4392             disable aligned_stack
4393     fi
4394 elif enabled ccc; then
4395     # disable some annoying warnings
4396     add_cflags -msg_disable bitnotint
4397     add_cflags -msg_disable mixfuncvoid
4398     add_cflags -msg_disable nonstandcast
4399     add_cflags -msg_disable unsupieee
4400 elif enabled gcc; then
4401     check_optflags -fno-tree-vectorize
4402     check_cflags -Werror=implicit-function-declaration
4403     check_cflags -Werror=missing-prototypes
4404     check_cflags -Werror=return-type
4405     check_cflags -Werror=vla
4406 elif enabled llvm_gcc; then
4407     check_cflags -mllvm -stack-alignment=16
4408 elif enabled clang; then
4409     check_cflags -mllvm -stack-alignment=16
4410     check_cflags -Qunused-arguments
4411     check_cflags -Werror=implicit-function-declaration
4412     check_cflags -Werror=missing-prototypes
4413     check_cflags -Werror=return-type
4414 elif enabled armcc; then
4415     # 2523: use of inline assembler is deprecated
4416     add_cflags -W${armcc_opt},--diag_suppress=2523
4417     add_cflags -W${armcc_opt},--diag_suppress=1207
4418     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4419     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4420     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4421     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4422 elif enabled tms470; then
4423     add_cflags -pds=824 -pds=837
4424 elif enabled pathscale; then
4425     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4426 elif enabled_any msvc icl; then
4427     enabled x86_32 && disable aligned_stack
4428     if enabled icl; then
4429         # basically -fstrict-aliasing for icl that doesn't work (correctly) on 13.x+
4430         check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4431         # icl will pass the inline asm tests but inline asm is currently not supported (build will fail)
4432         disable inline_asm
4433     fi
4434 fi
4435
4436 case $target_os in
4437     osf1)
4438         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4439     ;;
4440     plan9)
4441         add_cppflags -Dmain=plan9_main
4442     ;;
4443 esac
4444
4445 enable frame_thread_encoder
4446 enabled_any $THREADS_LIST      && enable threads
4447 enabled_any $ATOMICS_LIST      && enable atomics_native
4448
4449 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4450
4451 check_deps $CONFIG_LIST       \
4452            $CONFIG_EXTRA      \
4453            $HAVE_LIST         \
4454            $ALL_COMPONENTS    \
4455
4456
4457 if test $target_os = "haiku"; then
4458     disable memalign
4459     disable posix_memalign
4460 fi
4461
4462 ! enabled_any memalign posix_memalign aligned_malloc &&
4463     enabled_any $need_memalign && enable memalign_hack
4464
4465 # add_dep lib dep
4466 # -> enable ${lib}_deps_${dep}
4467 # -> add $dep to ${lib}_deps only once
4468 add_dep() {
4469     lib=$1
4470     dep=$2
4471     enabled "${lib}_deps_${dep}" && return 0
4472     enable  "${lib}_deps_${dep}"
4473     prepend "${lib}_deps" $dep
4474 }
4475
4476 # merge deps lib components
4477 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4478 merge_deps() {
4479     lib=$1
4480     shift
4481     for comp in $*; do
4482         enabled $comp || continue
4483         eval "dep=\"\$${comp}_deps\""
4484         for d in $dep; do
4485             add_dep $lib $d
4486         done
4487     done
4488 }
4489
4490 merge_deps libavfilter $FILTER_LIST
4491
4492 echo "install prefix            $prefix"
4493 echo "source path               $source_path"
4494 echo "C compiler                $cc"
4495 echo "ARCH                      $arch ($cpu)"
4496 if test "$build_suffix" != ""; then
4497     echo "build suffix              $build_suffix"
4498 fi
4499 if test "$progs_suffix" != ""; then
4500     echo "progs suffix              $progs_suffix"
4501 fi
4502 if test "$extra_version" != ""; then
4503     echo "version string suffix     $extra_version"
4504 fi
4505 echo "big-endian                ${bigendian-no}"
4506 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4507 if enabled x86; then
4508     echo "${yasmexe}                      ${yasm-no}"
4509     echo "MMX enabled               ${mmx-no}"
4510     echo "MMXEXT enabled            ${mmxext-no}"
4511     echo "3DNow! enabled            ${amd3dnow-no}"
4512     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4513     echo "SSE enabled               ${sse-no}"
4514     echo "SSSE3 enabled             ${ssse3-no}"
4515     echo "AVX enabled               ${avx-no}"
4516     echo "FMA4 enabled              ${fma4-no}"
4517     echo "i686 features enabled     ${i686-no}"
4518     echo "CMOV is fast              ${fast_cmov-no}"
4519     echo "EBX available             ${ebx_available-no}"
4520     echo "EBP available             ${ebp_available-no}"
4521 fi
4522 if enabled arm; then
4523     echo "ARMv5TE enabled           ${armv5te-no}"
4524     echo "ARMv6 enabled             ${armv6-no}"
4525     echo "ARMv6T2 enabled           ${armv6t2-no}"
4526     echo "VFP enabled               ${vfp-no}"
4527     echo "NEON enabled              ${neon-no}"
4528     echo "THUMB enabled             ${thumb-no}"
4529 fi
4530 if enabled mips; then
4531     echo "MIPS FPU enabled          ${mipsfpu-no}"
4532     echo "MIPS32R2 enabled          ${mips32r2-no}"
4533     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4534     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4535 fi
4536 if enabled ppc; then
4537     echo "AltiVec enabled           ${altivec-no}"
4538     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4539     echo "dcbzl available           ${dcbzl-no}"
4540 fi
4541 if enabled sparc; then
4542     echo "VIS enabled               ${vis-no}"
4543 fi
4544 echo "debug symbols             ${debug-no}"
4545 echo "strip symbols             ${stripping-no}"
4546 echo "optimize for size         ${small-no}"
4547 echo "optimizations             ${optimizations-no}"
4548 echo "static                    ${static-no}"
4549 echo "shared                    ${shared-no}"
4550 echo "postprocessing support    ${postproc-no}"
4551 echo "new filter support        ${avfilter-no}"
4552 echo "network support           ${network-no}"
4553 echo "threading support         ${thread_type-no}"
4554 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4555 echo "SDL support               ${sdl-no}"
4556 echo "opencl enabled            ${opencl-no}"
4557 echo "libshine enabled          ${libshine-no}"
4558 echo "texi2html enabled         ${texi2html-no}"
4559 echo "perl enabled              ${perl-no}"
4560 echo "pod2man enabled           ${pod2man-no}"
4561 echo "makeinfo enabled          ${makeinfo-no}"
4562 test -n "$random_seed" &&
4563     echo "random seed               ${random_seed}"
4564 echo
4565
4566 echo "External libraries:"
4567 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4568 echo
4569
4570 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4571     echo "Enabled ${type}s:"
4572     eval list=\$$(toupper $type)_LIST
4573     print_enabled '_*' $list | print_3_columns
4574     echo
4575 done
4576
4577 license="LGPL version 2.1 or later"
4578 if enabled nonfree; then
4579     license="nonfree and unredistributable"
4580 elif enabled gplv3; then
4581     license="GPL version 3 or later"
4582 elif enabled lgplv3; then
4583     license="LGPL version 3 or later"
4584 elif enabled gpl; then
4585     license="GPL version 2 or later"
4586 fi
4587
4588 echo "License: $license"
4589
4590 echo "Creating config.mak, config.h, and doc/config.texi..."
4591
4592 test -e Makefile || $ln_s "$source_path/Makefile" .
4593
4594 enabled stripping || strip="echo skipping strip"
4595
4596 config_files="$TMPH config.mak doc/config.texi"
4597
4598 cat > config.mak <<EOF
4599 # Automatically generated by configure - do not modify!
4600 ifndef FFMPEG_CONFIG_MAK
4601 FFMPEG_CONFIG_MAK=1
4602 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4603 prefix=$prefix
4604 LIBDIR=\$(DESTDIR)$libdir
4605 SHLIBDIR=\$(DESTDIR)$shlibdir
4606 INCDIR=\$(DESTDIR)$incdir
4607 BINDIR=\$(DESTDIR)$bindir
4608 DATADIR=\$(DESTDIR)$datadir
4609 MANDIR=\$(DESTDIR)$mandir
4610 SRC_PATH=$source_path
4611 ifndef MAIN_MAKEFILE
4612 SRC_PATH:=\$(SRC_PATH:.%=..%)
4613 endif
4614 CC_IDENT=$cc_ident
4615 ARCH=$arch
4616 CC=$cc
4617 CXX=$cxx
4618 AS=$as
4619 LD=$ld
4620 DEPCC=$dep_cc
4621 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4622 DEPAS=$as
4623 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4624 YASM=$yasmexe
4625 DEPYASM=$yasmexe
4626 AR=$ar
4627 ARFLAGS=$arflags
4628 AR_O=$ar_o
4629 RANLIB=$ranlib
4630 CP=cp -p
4631 LN_S=$ln_s
4632 STRIP=$strip
4633 CPPFLAGS=$CPPFLAGS
4634 CFLAGS=$CFLAGS
4635 CXXFLAGS=$CXXFLAGS
4636 ASFLAGS=$ASFLAGS
4637 AS_C=$AS_C
4638 AS_O=$AS_O
4639 CC_C=$CC_C
4640 CC_E=$CC_E
4641 CC_O=$CC_O
4642 CXX_C=$CXX_C
4643 CXX_O=$CXX_O
4644 LD_O=$LD_O
4645 LD_LIB=$LD_LIB
4646 LD_PATH=$LD_PATH
4647 DLLTOOL=$dlltool
4648 LDFLAGS=$LDFLAGS
4649 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4650 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4651 YASMFLAGS=$YASMFLAGS
4652 BUILDSUF=$build_suffix
4653 PROGSSUF=$progs_suffix
4654 FULLNAME=$FULLNAME
4655 LIBPREF=$LIBPREF
4656 LIBSUF=$LIBSUF
4657 LIBNAME=$LIBNAME
4658 SLIBPREF=$SLIBPREF
4659 SLIBSUF=$SLIBSUF
4660 EXESUF=$EXESUF
4661 EXTRA_VERSION=$extra_version
4662 CCDEP=$CCDEP
4663 CXXDEP=$CXXDEP
4664 CCDEP_FLAGS=$CCDEP_FLAGS
4665 ASDEP=$ASDEP
4666 ASDEP_FLAGS=$ASDEP_FLAGS
4667 CC_DEPFLAGS=$CC_DEPFLAGS
4668 AS_DEPFLAGS=$AS_DEPFLAGS
4669 HOSTCC=$host_cc
4670 HOSTLD=$host_ld
4671 HOSTCFLAGS=$host_cflags
4672 HOSTCPPFLAGS=$host_cppflags
4673 HOSTEXESUF=$HOSTEXESUF
4674 HOSTLDFLAGS=$host_ldflags
4675 HOSTLIBS=$host_libs
4676 DEPHOSTCC=$host_cc
4677 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4678 HOSTCCDEP=$HOSTCCDEP
4679 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4680 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4681 HOSTCC_C=$HOSTCC_C
4682 HOSTCC_O=$HOSTCC_O
4683 HOSTLD_O=$HOSTLD_O
4684 TARGET_EXEC=$target_exec $target_exec_args
4685 TARGET_PATH=$target_path
4686 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4687 LIBS-ffplay=$sdl_libs
4688 CFLAGS-ffplay=$sdl_cflags
4689 ZLIB=$($ldflags_filter -lz)
4690 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4691 EXTRALIBS=$extralibs
4692 COMPAT_OBJS=$compat_objs
4693 EXEOBJS=$exeobjs
4694 INSTALL=$install
4695 LIBTARGET=${LIBTARGET}
4696 SLIBNAME=${SLIBNAME}
4697 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4698 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4699 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4700 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4701 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4702 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4703 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4704 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4705 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4706 NOREDZONE_FLAGS=$noredzone_flags
4707 EOF
4708
4709 get_version(){
4710     lcname=lib${1}
4711     name=$(toupper $lcname)
4712     file=$source_path/$lcname/version.h
4713     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4714     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4715     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4716     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4717     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4718 }
4719
4720 map 'get_version $v' $LIBRARY_LIST
4721
4722 cat > $TMPH <<EOF
4723 /* Automatically generated by configure - do not modify! */
4724 #ifndef FFMPEG_CONFIG_H
4725 #define FFMPEG_CONFIG_H
4726 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4727 #define FFMPEG_LICENSE "$(c_escape $license)"
4728 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4729 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4730 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4731 #define av_restrict $_restrict
4732 #define EXTERN_PREFIX "${extern_prefix}"
4733 #define EXTERN_ASM ${extern_prefix}
4734 #define SLIBSUF "$SLIBSUF"
4735 #define HAVE_MMX2 HAVE_MMXEXT
4736 EOF
4737
4738 test -n "$assert_level" &&
4739     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4740
4741 test -n "$malloc_prefix" &&
4742     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4743
4744 if enabled yasm; then
4745     append config_files $TMPASM
4746     printf '' >$TMPASM
4747 fi
4748
4749 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4750
4751
4752 mkdir -p doc
4753 echo "@c auto-generated by configure" > doc/config.texi
4754
4755 print_config ARCH_   "$config_files" $ARCH_LIST
4756 print_config HAVE_   "$config_files" $HAVE_LIST
4757 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4758                                      $CONFIG_EXTRA      \
4759                                      $ALL_COMPONENTS    \
4760
4761 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4762 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4763
4764 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4765 cp_if_changed $TMPH config.h
4766 touch .config
4767
4768 enabled yasm && cp_if_changed $TMPASM config.asm
4769
4770 cat > $TMPH <<EOF
4771 /* Generated by ffconf */
4772 #ifndef AVUTIL_AVCONFIG_H
4773 #define AVUTIL_AVCONFIG_H
4774 EOF
4775
4776 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4777
4778 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4779
4780 cp_if_changed $TMPH libavutil/avconfig.h
4781
4782 if test -n "$WARNINGS"; then
4783     printf "\n$WARNINGS"
4784     enabled fatal_warnings && exit 1
4785 fi
4786
4787 # build pkg-config files
4788
4789 pkgconfig_generate(){
4790     name=$1
4791     shortname=${name#lib}${build_suffix}
4792     comment=$2
4793     version=$3
4794     libs=$4
4795     requires=$5
4796     enabled ${name#lib} || return 0
4797     mkdir -p $name
4798     cat <<EOF > $name/$name${build_suffix}.pc
4799 prefix=$prefix
4800 exec_prefix=\${prefix}
4801 libdir=$libdir
4802 includedir=$incdir
4803
4804 Name: $name
4805 Description: $comment
4806 Version: $version
4807 Requires: $(enabled shared || echo $requires)
4808 Requires.private: $(enabled shared && echo $requires)
4809 Conflicts:
4810 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4811 Libs.private: $(enabled shared && echo $libs)
4812 Cflags: -I\${includedir}
4813 EOF
4814
4815 mkdir -p doc/examples/pc-uninstalled
4816 includedir=${source_path}
4817 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4818     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4819 prefix=
4820 exec_prefix=
4821 libdir=\${pcfiledir}/../../../$name
4822 includedir=${includedir}
4823
4824 Name: $name
4825 Description: $comment
4826 Version: $version
4827 Requires: $requires
4828 Conflicts:
4829 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4830 Cflags: -I\${includedir}
4831 EOF
4832 }
4833
4834 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4835 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4836 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4837 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4838 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4839 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4840 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4841 lavfi_libs=${lavfi_libs%, }
4842
4843 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4844 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4845
4846 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4847 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4848 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4849 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$lavd_libs"
4850 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4851 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4852 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4853 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4854 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4855
4856 fix_ffmpeg_remote(){
4857     git_remote_from=$1
4858     git_remote_to=$2
4859     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4860     if [ "$fixme_remote" != "" ]; then
4861         echolog "
4862 Outdated domain in git config, the official domain for ffmpeg git is since
4863 November 2011, source.ffmpeg.org, both the old and the new point to the same
4864 repository and server. To update it enter the following commands:
4865 "
4866         for remote in $fixme_remote; do
4867             echolog "git remote set-url $remote $git_remote_to"
4868         done
4869     fi
4870 }
4871
4872 if test -f "$source_path/.git/config"; then
4873     remote_from=git.videolan.org
4874     remote_to=source.ffmpeg.org
4875     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4876     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4877 fi