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) ;;
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.
2905         # Relies on wrapper to remap it.
2906         if $_cc 2>&1 | grep -q Linker; then
2907             _ld_o='-out $@'
2908         else
2909             _ld_o='-Fe$@'
2910         fi
2911         _cc_o='-Fo $@'
2912         _cc_e='-P -Fi $@'
2913         _flags_filter=msvc_flags
2914         _ld_lib='lib%.a'
2915         _ld_path='-libpath:'
2916         _flags='-nologo'
2917         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2918         if [ $pfx = hostcc ]; then
2919             append _cflags -Dsnprintf=_snprintf
2920         fi
2921         disable stripping
2922     elif $_cc 2>&1 | grep -q Intel; then
2923         _type=icl
2924         _ident=$($cc 2>&1 | head -n1)
2925         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2926         # Not only is O3 broken on 13.x+ but it is slower on all previous
2927         # versions (tested) as well.
2928         _cflags_speed="-O2"
2929         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2930         # Nonstandard output options, to avoid msys path conversion issues.
2931         # Relies on wrapper to remap it.
2932         if $_cc 2>&1 | grep -q Linker; then
2933             _ld_o='-out $@'
2934         else
2935             _ld_o='-Fe$@'
2936         fi
2937         _cc_o='-Fo $@'
2938         _cc_e='-P'
2939         _flags_filter=icl_flags
2940         _ld_lib='lib%.a'
2941         _ld_path='-libpath:'
2942         # -Qdiag-error to make icl error when seeing certain unknown arguments
2943         _flags='-nologo -Qdiag-error:4044,10157'
2944         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2945         # with MSVC which enables it by default.
2946         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2947         if [ $pfx = hostcc ]; then
2948             append _cflags -Dsnprintf=_snprintf
2949         fi
2950     fi
2951
2952     eval ${pfx}_type=\$_type
2953     eval ${pfx}_ident=\$_ident
2954 }
2955
2956 set_ccvars(){
2957     eval ${1}_C=\${_cc_c-\${${1}_C}}
2958     eval ${1}_E=\${_cc_e-\${${1}_E}}
2959     eval ${1}_O=\${_cc_o-\${${1}_O}}
2960
2961     if [ -n "$_depflags" ]; then
2962         eval ${1}_DEPFLAGS=\$_depflags
2963     else
2964         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2965         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2966         eval DEP${1}FLAGS=\$_flags
2967     fi
2968 }
2969
2970 probe_cc cc "$cc"
2971 cflags_filter=$_flags_filter
2972 cflags_speed=$_cflags_speed
2973 cflags_size=$_cflags_size
2974 cflags_noopt=$_cflags_noopt
2975 add_cflags $_flags $_cflags
2976 cc_ldflags=$_ldflags
2977 set_ccvars CC
2978
2979 probe_cc hostcc "$host_cc"
2980 host_cflags_filter=$_flags_filter
2981 add_host_cflags  $_flags $_cflags
2982 set_ccvars HOSTCC
2983
2984 test -n "$cc_type" && enable $cc_type ||
2985     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2986
2987 : ${as_default:=$cc}
2988 : ${dep_cc_default:=$cc}
2989 : ${ld_default:=$cc}
2990 : ${host_ld_default:=$host_cc}
2991 set_default ar as dep_cc ld host_ld
2992
2993 probe_cc as "$as"
2994 asflags_filter=$_flags_filter
2995 add_asflags $_flags $_cflags
2996 set_ccvars AS
2997
2998 probe_cc ld "$ld"
2999 ldflags_filter=$_flags_filter
3000 add_ldflags $_flags $_ldflags
3001 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3002 LD_O=${_ld_o-$LD_O}
3003 LD_LIB=${_ld_lib-$LD_LIB}
3004 LD_PATH=${_ld_path-$LD_PATH}
3005
3006 probe_cc hostld "$host_ld"
3007 host_ldflags_filter=$_flags_filter
3008 add_host_ldflags $_flags $_ldflags
3009 HOSTLD_O=${_ld_o-$HOSTLD_O}
3010
3011 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3012     probe_cc depcc "$dep_cc"
3013     CCDEP=${_DEPCMD:-$DEPCMD}
3014     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3015     DEPCCFLAGS=$_flags
3016 fi
3017
3018 if $ar 2>&1 | grep -q Microsoft; then
3019     arflags="-nologo"
3020     ar_o='-out:$@'
3021 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3022     arflags="rq"
3023     ar_o='$@'
3024 else
3025     arflags="rc"
3026     ar_o='$@'
3027 fi
3028
3029 add_cflags $extra_cflags
3030 add_cxxflags $extra_cxxflags
3031 add_asflags $extra_cflags
3032
3033 if test -n "$sysroot"; then
3034     case "$cc_type" in
3035         gcc|llvm_gcc|clang)
3036             add_cppflags --sysroot="$sysroot"
3037             add_ldflags --sysroot="$sysroot"
3038         ;;
3039         tms470)
3040             add_cppflags -I"$sysinclude"
3041             add_ldflags  --sysroot="$sysroot"
3042         ;;
3043     esac
3044 fi
3045
3046 if test "$cpu" = host; then
3047     enabled cross_compile &&
3048         die "--cpu=host makes no sense when cross-compiling."
3049
3050     case "$cc_type" in
3051         gcc|llvm_gcc)
3052             check_native(){
3053                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3054                 sed -n "/cc1.*$1=/{
3055                             s/.*$1=\\([^ ]*\\).*/\\1/
3056                             p
3057                             q
3058                         }" $TMPE
3059             }
3060             cpu=$(check_native -march || check_native -mcpu)
3061         ;;
3062     esac
3063
3064     test "${cpu:-host}" = host &&
3065         die "--cpu=host not supported with compiler $cc"
3066 fi
3067
3068 # Deal with common $arch aliases
3069 case "$arch" in
3070     aarch64|arm64)
3071         arch="aarch64"
3072     ;;
3073     arm*|iPad*)
3074         arch="arm"
3075     ;;
3076     mips*|IP*)
3077         arch="mips"
3078     ;;
3079     parisc*|hppa*)
3080         arch="parisc"
3081     ;;
3082     "Power Macintosh"|ppc*|powerpc*)
3083         arch="ppc"
3084     ;;
3085     s390|s390x)
3086         arch="s390"
3087     ;;
3088     sh4|sh)
3089         arch="sh4"
3090     ;;
3091     sun4u|sparc*)
3092         arch="sparc"
3093     ;;
3094     tilegx|tile-gx)
3095         arch="tilegx"
3096     ;;
3097     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3098         arch="x86"
3099     ;;
3100 esac
3101
3102 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3103 enable $arch
3104
3105 # Add processor-specific flags
3106 if enabled aarch64; then
3107
3108     case $cpu in
3109         armv*)
3110             cpuflags="-march=$cpu"
3111         ;;
3112         *)
3113             cpuflags="-mcpu=$cpu"
3114         ;;
3115     esac
3116
3117 elif enabled alpha; then
3118
3119     cpuflags="-mcpu=$cpu"
3120
3121 elif enabled arm; then
3122
3123     check_arm_arch() {
3124         check_cpp_condition stddef.h \
3125             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3126             $cpuflags
3127     }
3128
3129     probe_arm_arch() {
3130         if   check_arm_arch 4;        then echo armv4;
3131         elif check_arm_arch 4T;       then echo armv4t;
3132         elif check_arm_arch 5;        then echo armv5;
3133         elif check_arm_arch 5E;       then echo armv5e;
3134         elif check_arm_arch 5T;       then echo armv5t;
3135         elif check_arm_arch 5TE;      then echo armv5te;
3136         elif check_arm_arch 5TEJ;     then echo armv5te;
3137         elif check_arm_arch 6;        then echo armv6;
3138         elif check_arm_arch 6J;       then echo armv6j;
3139         elif check_arm_arch 6K;       then echo armv6k;
3140         elif check_arm_arch 6Z;       then echo armv6z;
3141         elif check_arm_arch 6ZK;      then echo armv6zk;
3142         elif check_arm_arch 6T2;      then echo armv6t2;
3143         elif check_arm_arch 7;        then echo armv7;
3144         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3145         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3146         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3147         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3148         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3149         fi
3150     }
3151
3152     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3153
3154     case $cpu in
3155         armv*)
3156             cpuflags="-march=$cpu"
3157             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3158         ;;
3159         *)
3160             cpuflags="-mcpu=$cpu"
3161             case $cpu in
3162                 cortex-a*)                               subarch=armv7a  ;;
3163                 cortex-r*)                               subarch=armv7r  ;;
3164                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3165                 arm11*)                                  subarch=armv6   ;;
3166                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3167                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3168                 *)                             subarch=$(probe_arm_arch) ;;
3169             esac
3170         ;;
3171     esac
3172
3173     case "$subarch" in
3174         armv5t*)    enable fast_clz                ;;
3175         armv[6-8]*) enable fast_clz fast_unaligned ;;
3176     esac
3177
3178 elif enabled avr32; then
3179
3180     case $cpu in
3181         ap7[02]0[0-2])
3182             subarch="avr32_ap"
3183             cpuflags="-mpart=$cpu"
3184         ;;
3185         ap)
3186             subarch="avr32_ap"
3187             cpuflags="-march=$cpu"
3188         ;;
3189         uc3[ab]*)
3190             subarch="avr32_uc"
3191             cpuflags="-mcpu=$cpu"
3192         ;;
3193         uc)
3194             subarch="avr32_uc"
3195             cpuflags="-march=$cpu"
3196         ;;
3197     esac
3198
3199 elif enabled bfin; then
3200
3201     cpuflags="-mcpu=$cpu"
3202
3203 elif enabled mips; then
3204
3205     cpuflags="-march=$cpu"
3206
3207     case $cpu in
3208         24kc)
3209             disable mipsfpu
3210             disable mipsdspr1
3211             disable mipsdspr2
3212         ;;
3213         24kf*)
3214             disable mipsdspr1
3215             disable mipsdspr2
3216         ;;
3217         24kec|34kc|1004kc)
3218             disable mipsfpu
3219             disable mipsdspr2
3220         ;;
3221         24kef*|34kf*|1004kf*)
3222             disable mipsdspr2
3223         ;;
3224         74kc)
3225             disable mipsfpu
3226         ;;
3227     esac
3228
3229 elif enabled ppc; then
3230
3231     case $(tolower $cpu) in
3232         601|ppc601|powerpc601)
3233             cpuflags="-mcpu=601"
3234             disable altivec
3235         ;;
3236         603*|ppc603*|powerpc603*)
3237             cpuflags="-mcpu=603"
3238             disable altivec
3239         ;;
3240         604*|ppc604*|powerpc604*)
3241             cpuflags="-mcpu=604"
3242             disable altivec
3243         ;;
3244         g3|75*|ppc75*|powerpc75*)
3245             cpuflags="-mcpu=750"
3246             disable altivec
3247         ;;
3248         g4|745*|ppc745*|powerpc745*)
3249             cpuflags="-mcpu=7450"
3250         ;;
3251         74*|ppc74*|powerpc74*)
3252             cpuflags="-mcpu=7400"
3253         ;;
3254         g5|970|ppc970|powerpc970)
3255             cpuflags="-mcpu=970"
3256         ;;
3257         power[3-7]*)
3258             cpuflags="-mcpu=$cpu"
3259         ;;
3260         cell)
3261             cpuflags="-mcpu=cell"
3262             enable ldbrx
3263         ;;
3264         e500mc)
3265             cpuflags="-mcpu=e500mc"
3266             disable altivec
3267         ;;
3268         e500v2)
3269             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3270             disable altivec
3271         ;;
3272         e500)
3273             cpuflags="-mcpu=8540 -mhard-float"
3274             disable altivec
3275         ;;
3276     esac
3277
3278 elif enabled sparc; then
3279
3280     case $cpu in
3281         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3282             cpuflags="-mcpu=$cpu"
3283             disable vis
3284         ;;
3285         ultrasparc*|niagara[234])
3286             cpuflags="-mcpu=$cpu"
3287         ;;
3288     esac
3289
3290 elif enabled x86; then
3291
3292     case $cpu in
3293         i[345]86|pentium)
3294             cpuflags="-march=$cpu"
3295             disable mmx
3296         ;;
3297         # targets that do NOT support nopl and conditional mov (cmov)
3298         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3299             cpuflags="-march=$cpu"
3300             disable i686
3301         ;;
3302         # targets that do support nopl and conditional mov (cmov)
3303         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3304             cpuflags="-march=$cpu"
3305             enable i686
3306             enable fast_cmov
3307         ;;
3308         # targets that do support conditional mov but on which it's slow
3309         pentium4|pentium4m|prescott|nocona)
3310             cpuflags="-march=$cpu"
3311             enable i686
3312             disable fast_cmov
3313         ;;
3314     esac
3315
3316 fi
3317
3318 if [ "$cpu" != generic ]; then
3319     add_cflags  $cpuflags
3320     add_asflags $cpuflags
3321 fi
3322
3323 # compiler sanity check
3324 check_exec <<EOF
3325 int main(void){ return 0; }
3326 EOF
3327 if test "$?" != 0; then
3328     echo "$cc is unable to create an executable file."
3329     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3330         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3331         echo "Only do this if you know what cross compiling means."
3332     fi
3333     die "C compiler test failed."
3334 fi
3335
3336 add_cppflags -D_ISOC99_SOURCE
3337 add_cxxflags -D__STDC_CONSTANT_MACROS
3338 check_cflags -std=c99
3339 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3340 #include <stdlib.h>
3341 EOF
3342 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3343 #include <stdlib.h>
3344 EOF
3345
3346 check_host_cflags -std=c99
3347 check_host_cflags -Wall
3348
3349 check_64bit(){
3350     arch32=$1
3351     arch64=$2
3352     expr=$3
3353     check_code cc "" "int test[2*($expr) - 1]" &&
3354         subarch=$arch64 || subarch=$arch32
3355 }
3356
3357 case "$arch" in
3358     aarch64|alpha|ia64)
3359         spic=$shared
3360     ;;
3361     mips)
3362         check_64bit mips mips64 '_MIPS_SIM > 1'
3363         spic=$shared
3364     ;;
3365     parisc)
3366         check_64bit parisc parisc64 'sizeof(void *) > 4'
3367         spic=$shared
3368     ;;
3369     ppc)
3370         check_64bit ppc ppc64 'sizeof(void *) > 4'
3371         spic=$shared
3372     ;;
3373     sparc)
3374         check_64bit sparc sparc64 'sizeof(void *) > 4'
3375         spic=$shared
3376     ;;
3377     x86)
3378         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3379         if test "$subarch" = "x86_64"; then
3380             spic=$shared
3381         fi
3382     ;;
3383     ppc)
3384         check_cc <<EOF && subarch="ppc64"
3385         int test[(int)sizeof(char*) - 7];
3386 EOF
3387     ;;
3388 esac
3389
3390 enable $subarch
3391 enabled spic && enable_weak pic
3392
3393 # OS specific
3394 case $target_os in
3395     haiku)
3396         prefix_default="/boot/common"
3397         network_extralibs="-lnetwork"
3398         host_libs=
3399         ;;
3400     sunos)
3401         FFSERVERLDFLAGS=""
3402         SHFLAGS='-shared -Wl,-h,$$(@F)'
3403         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3404         network_extralibs="-lsocket -lnsl"
3405         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3406         # When using suncc to build, the Solaris linker will mark
3407         # an executable with each instruction set encountered by
3408         # the Solaris assembler.  As our libraries contain their own
3409         # guards for processor-specific code, instead suppress
3410         # generation of the HWCAPS ELF section on Solaris x86 only.
3411         enabled_all suncc x86 &&
3412             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3413             add_ldflags -Wl,-M,mapfile
3414         nm_default='nm -P -g'
3415         ;;
3416     netbsd)
3417         disable symver
3418         oss_indev_extralibs="-lossaudio"
3419         oss_outdev_extralibs="-lossaudio"
3420         enabled gcc || check_ldflags -Wl,-zmuldefs
3421         ;;
3422     openbsd|bitrig)
3423         disable symver
3424         SHFLAGS='-shared'
3425         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3426         SLIB_INSTALL_LINKS=
3427         oss_indev_extralibs="-lossaudio"
3428         oss_outdev_extralibs="-lossaudio"
3429         ;;
3430     dragonfly)
3431         disable symver
3432         ;;
3433     freebsd)
3434         ;;
3435     bsd/os)
3436         add_extralibs -lpoll -lgnugetopt
3437         strip="strip -d"
3438         ;;
3439     darwin)
3440         gas="gas-preprocessor.pl $cc"
3441         enabled ppc && add_asflags -force_cpusubtype_ALL
3442         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3443         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3444         strip="${strip} -x"
3445         add_ldflags -Wl,-dynamic,-search_paths_first
3446         SLIBSUF=".dylib"
3447         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3448         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3449         FFSERVERLDFLAGS=-Wl,-bind_at_load
3450         objformat="macho"
3451         enabled x86_64 && objformat="macho64"
3452         enabled_any pic shared ||
3453             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3454         ;;
3455     mingw32*)
3456         if test $target_os = "mingw32ce"; then
3457             disable network
3458         else
3459             target_os=mingw32
3460         fi
3461         LIBTARGET=i386
3462         if enabled x86_64; then
3463             LIBTARGET="i386:x86-64"
3464         elif enabled arm; then
3465             LIBTARGET=arm-wince
3466         fi
3467         check_ldflags -Wl,--nxcompat
3468         check_ldflags -Wl,--dynamicbase
3469         shlibdir_default="$bindir_default"
3470         SLIBPREF=""
3471         SLIBSUF=".dll"
3472         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3473         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3474         dlltool="${cross_prefix}dlltool"
3475         if check_cmd lib.exe -list; then
3476             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3477             if enabled x86_64; then
3478                 LIBTARGET=x64
3479             fi
3480         elif check_cmd $dlltool --version; then
3481             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3482         fi
3483         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3484         SLIB_INSTALL_LINKS=
3485         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3486         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3487         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3488         objformat="win32"
3489         ranlib=:
3490         enable dos_paths
3491         ;;
3492     win32|win64)
3493         if enabled shared; then
3494             # Link to the import library instead of the normal static library
3495             # for shared libs.
3496             LD_LIB='%.lib'
3497             # Cannot build shared and static libs at the same time with MSVC.
3498             disable static
3499         fi
3500         shlibdir_default="$bindir_default"
3501         SLIBPREF=""
3502         SLIBSUF=".dll"
3503         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3504         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3505         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3506         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3507         SLIB_INSTALL_LINKS=
3508         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3509         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3510         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3511         objformat="win32"
3512         ranlib=:
3513         enable dos_paths
3514         ;;
3515     cygwin*)
3516         target_os=cygwin
3517         shlibdir_default="$bindir_default"
3518         SLIBPREF="cyg"
3519         SLIBSUF=".dll"
3520         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3521         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3522         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3523         SLIB_INSTALL_LINKS=
3524         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3525         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3526         objformat="win32"
3527         enable dos_paths
3528         ;;
3529     *-dos|freedos|opendos)
3530         network_extralibs="-lsocket"
3531         objformat="coff"
3532         enable dos_paths
3533         add_cppflags -U__STRICT_ANSI__
3534         ;;
3535     linux)
3536         enable dv1394
3537         ;;
3538     irix*)
3539         target_os=irix
3540         ranlib="echo ignoring ranlib"
3541         ;;
3542     os/2*)
3543         strip="lxlite -CS"
3544         ln_s="cp -f"
3545         objformat="aout"
3546         add_cppflags -D_GNU_SOURCE
3547         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3548         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3549         FFSERVERLDFLAGS=""
3550         LIBSUF="_s.a"
3551         SLIBPREF=""
3552         SLIBSUF=".dll"
3553         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3554         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3555         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3556             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3557             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3558             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3559             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3560             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3561         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3562             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3563         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3564         enable dos_paths
3565         enable_weak os2threads
3566         ;;
3567     gnu/kfreebsd)
3568         add_cppflags -D_BSD_SOURCE
3569         ;;
3570     gnu)
3571         ;;
3572     qnx)
3573         add_cppflags -D_QNX_SOURCE
3574         network_extralibs="-lsocket"
3575         ;;
3576     symbian)
3577         SLIBSUF=".dll"
3578         enable dos_paths
3579         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3580         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3581         add_ldflags -Wl,--target1-abs,--no-undefined \
3582                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3583                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3584         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3585                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3586                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3587         ;;
3588     osf1)
3589         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3590         FFSERVERLDFLAGS=
3591         ;;
3592     minix)
3593         ;;
3594     plan9)
3595         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3596                      -D_REENTRANT_SOURCE        \
3597                      -D_RESEARCH_SOURCE         \
3598                      -DFD_SETSIZE=96            \
3599                      -DHAVE_SOCK_OPTS
3600         add_compat strtod.o strtod=avpriv_strtod
3601         network_extralibs='-lbsd'
3602         exeobjs=compat/plan9/main.o
3603         disable ffserver
3604         cp_f='cp'
3605         ;;
3606     none)
3607         ;;
3608     *)
3609         die "Unknown OS '$target_os'."
3610         ;;
3611 esac
3612
3613 # determine libc flavour
3614
3615 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3616 if check_cpp_condition features.h "defined __UCLIBC__"; then
3617     libc_type=uclibc
3618     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3619 elif check_cpp_condition features.h "defined __GLIBC__"; then
3620     libc_type=glibc
3621     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3622 # MinGW headers can be installed on Cygwin, so check for newlib first.
3623 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3624     libc_type=newlib
3625     add_cppflags -U__STRICT_ANSI__
3626 elif check_header _mingw.h; then
3627     libc_type=mingw
3628     check_cpp_condition _mingw.h \
3629         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3630             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3631         die "ERROR: MinGW runtime version must be >= 3.15."
3632     add_cppflags -U__STRICT_ANSI__
3633     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3634             __MINGW64_VERSION_MAJOR < 3"; then
3635         add_compat msvcrt/snprintf.o
3636         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3637     else
3638         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3639     fi
3640 elif check_func_headers stdlib.h _get_doserrno; then
3641     libc_type=msvcrt
3642     add_compat strtod.o strtod=avpriv_strtod
3643     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3644                                  _snprintf=avpriv_snprintf  \
3645                                  vsnprintf=avpriv_vsnprintf
3646     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3647     # 0x601 by default unless something else is set by the user.
3648     # This can easily lead to us detecting functions only present
3649     # in such new versions and producing binaries requiring windows 7.0.
3650     # Therefore explicitly set the default to XP unless the user has
3651     # set something else on the command line.
3652     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3653 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3654     libc_type=klibc
3655 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3656     libc_type=bionic
3657     add_compat strtod.o strtod=avpriv_strtod
3658 fi
3659
3660 test -n "$libc_type" && enable $libc_type
3661
3662 # hacks for compiler/libc/os combinations
3663
3664 if enabled_all tms470 glibc; then
3665     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3666     add_cppflags -D__USER_LABEL_PREFIX__=
3667     add_cppflags -D__builtin_memset=memset
3668     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3669     add_cflags   -pds=48    # incompatible redefinition of macro
3670 fi
3671
3672 if enabled_all ccc glibc; then
3673     add_ldflags -Wl,-z,now  # calls to libots crash without this
3674 fi
3675
3676 esc(){
3677     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3678 }
3679
3680 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3681
3682 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3683
3684 set_default $PATHS_LIST
3685 set_default nm
3686
3687 # we need to build at least one lib type
3688 if ! enabled_any static shared; then
3689     cat <<EOF
3690 At least one library type must be built.
3691 Specify --enable-static to build the static libraries or --enable-shared to
3692 build the shared libraries as well. To only build the shared libraries specify
3693 --disable-static in addition to --enable-shared.
3694 EOF
3695     exit 1;
3696 fi
3697
3698 die_license_disabled() {
3699     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3700 }
3701
3702 die_license_disabled_gpl() {
3703     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3704 }
3705
3706 die_license_disabled gpl frei0r
3707 die_license_disabled gpl libcdio
3708 die_license_disabled gpl libutvideo
3709 die_license_disabled gpl libvidstab
3710 die_license_disabled gpl libx264
3711 die_license_disabled gpl libxavs
3712 die_license_disabled gpl libxvid
3713 die_license_disabled gpl x11grab
3714
3715 die_license_disabled nonfree libaacplus
3716 die_license_disabled nonfree libfaac
3717 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3718 enabled gpl && die_license_disabled_gpl nonfree openssl
3719
3720 die_license_disabled version3 libopencore_amrnb
3721 die_license_disabled version3 libopencore_amrwb
3722 die_license_disabled version3 libvo_aacenc
3723 die_license_disabled version3 libvo_amrwbenc
3724
3725 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3726
3727 disabled optimizations || check_cflags -fomit-frame-pointer
3728
3729 enable_weak_pic() {
3730     disabled pic && return
3731     enable pic
3732     add_cppflags -DPIC
3733     case "$target_os" in
3734     mingw*|cygwin*)
3735         ;;
3736     *)
3737         add_cflags -fPIC
3738         ;;
3739     esac
3740     add_asflags  -fPIC
3741 }
3742
3743 enabled pic && enable_weak_pic
3744
3745 check_cc <<EOF || die "Symbol mangling check failed."
3746 int ff_extern;
3747 EOF
3748 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3749 extern_prefix=${sym%%ff_extern*}
3750
3751 check_cc <<EOF && enable_weak inline_asm
3752 void foo(void) { __asm__ volatile ("" ::); }
3753 EOF
3754
3755 _restrict=
3756 for restrict_keyword in restrict __restrict__ __restrict; do
3757     check_cc <<EOF && _restrict=$restrict_keyword && break
3758 void foo(char * $restrict_keyword p);
3759 EOF
3760 done
3761
3762 check_cc <<EOF && enable attribute_packed
3763 struct { int x; } __attribute__((packed)) x;
3764 EOF
3765
3766 check_cc <<EOF && enable attribute_may_alias
3767 union { int x; } __attribute__((may_alias)) x;
3768 EOF
3769
3770 check_cc <<EOF || die "endian test failed"
3771 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3772 EOF
3773 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3774
3775 if enabled alpha; then
3776
3777     check_cflags -mieee
3778
3779 elif enabled arm; then
3780
3781     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3782 float func(float a, float b){ return a+b; }
3783 EOF
3784
3785     enabled thumb && check_cflags -mthumb || check_cflags -marm
3786     nogas=die
3787
3788     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3789         enable vfp_args
3790     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3791         case "${cross_prefix:-$cc}" in
3792             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3793             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3794 __asm__ (".eabi_attribute 28, 1");
3795 int main(void) { return 0; }
3796 EOF
3797         esac
3798         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3799     fi
3800
3801     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3802     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3803     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3804     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3805     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3806     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3807
3808     [ $target_os = linux ] ||
3809         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3810             $ARCH_EXT_LIST_ARM
3811
3812     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3813     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3814
3815     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3816
3817 elif enabled mips; then
3818
3819     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3820     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3821      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3822     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3823      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3824     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3825      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3826     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3827      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3828
3829 elif enabled parisc; then
3830
3831     if enabled gcc; then
3832         case $($cc -dumpversion) in
3833             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3834         esac
3835     fi
3836
3837 elif enabled ppc; then
3838
3839     enable local_aligned_8 local_aligned_16
3840
3841     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3842     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3843     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3844     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3845
3846     # AltiVec flags: The FSF version of GCC differs from the Apple version
3847     if enabled altivec; then
3848         nogas=warn
3849         check_cflags -maltivec -mabi=altivec &&
3850         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3851         check_cflags -faltivec
3852
3853         # check if our compiler supports Motorola AltiVec C API
3854         check_cc <<EOF || disable altivec
3855 $inc_altivec_h
3856 int main(void) {
3857     vector signed int v1 = (vector signed int) { 0 };
3858     vector signed int v2 = (vector signed int) { 1 };
3859     v1 = vec_add(v1, v2);
3860     return 0;
3861 }
3862 EOF
3863
3864         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3865     fi
3866
3867 elif enabled sparc; then
3868
3869     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3870
3871 elif enabled x86; then
3872
3873     check_builtin rdtsc    intrin.h   "__rdtsc()"
3874     check_builtin mm_empty mmintrin.h "_mm_empty()"
3875
3876     enable local_aligned_8 local_aligned_16
3877
3878     # check whether EBP is available on x86
3879     # As 'i' is stored on the stack, this program will crash
3880     # if the base pointer is used to access it because the
3881     # base pointer is cleared in the inline assembly code.
3882     check_exec_crash <<EOF && enable ebp_available
3883 volatile int i=0;
3884 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3885 return i;
3886 EOF
3887
3888     # check whether EBX is available on x86
3889     check_inline_asm ebx_available '""::"b"(0)' &&
3890         check_inline_asm ebx_available '"":::"%ebx"'
3891
3892     # check whether xmm clobbers are supported
3893     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3894
3895     # check whether binutils is new enough to compile SSSE3/MMXEXT
3896     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3897     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3898
3899     if ! disabled_any asm mmx yasm; then
3900         if check_cmd $yasmexe --version; then
3901             enabled x86_64 && yasm_extra="-m amd64"
3902             yasm_debug="-g dwarf2"
3903         elif check_cmd nasm -v; then
3904             yasmexe=nasm
3905             yasm_debug="-g -F dwarf"
3906             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3907         fi
3908
3909         YASMFLAGS="-f $objformat $yasm_extra"
3910         enabled pic               && append YASMFLAGS "-DPIC"
3911         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3912         case "$objformat" in
3913             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3914         esac
3915
3916         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3917             die "yasm not found, use --disable-yasm for a crippled build"
3918         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3919         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3920         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3921     fi
3922
3923     case "$cpu" in
3924         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3925             disable fast_clz
3926         ;;
3927     esac
3928
3929 fi
3930
3931 if enabled asm; then
3932     as=${gas:=$as}
3933     check_as <<EOF && enable gnu_as || \
3934         $nogas "GNU assembler not found, install gas-preprocessor"
3935 .macro m n
3936 \n: .int 0
3937 .endm
3938 m x
3939 EOF
3940 fi
3941
3942 check_ldflags -Wl,--as-needed
3943
3944 if check_func dlopen; then
3945     ldl=
3946 elif check_func dlopen -ldl; then
3947     ldl=-ldl
3948 fi
3949
3950 if ! disabled network; then
3951     check_type "sys/types.h sys/socket.h" socklen_t
3952     check_type netdb.h "struct addrinfo"
3953     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3954     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3955     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3956     check_type netinet/in.h "struct sockaddr_in6"
3957     check_type poll.h "struct pollfd"
3958     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3959     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3960     check_type netinet/sctp.h "struct sctp_event_subscribe"
3961     check_func getaddrinfo $network_extralibs
3962     check_func getservbyport $network_extralibs
3963     # Prefer arpa/inet.h over winsock2
3964     if check_header arpa/inet.h ; then
3965         check_func closesocket
3966     elif check_header winsock2.h ; then
3967         check_func_headers winsock2.h closesocket -lws2 &&
3968             network_extralibs="-lws2" ||
3969         { check_func_headers winsock2.h closesocket -lws2_32 &&
3970             network_extralibs="-lws2_32"; }
3971         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3972         check_type ws2tcpip.h socklen_t
3973         check_type ws2tcpip.h "struct addrinfo"
3974         check_type ws2tcpip.h "struct group_source_req"
3975         check_type ws2tcpip.h "struct ip_mreq_source"
3976         check_type ws2tcpip.h "struct ipv6_mreq"
3977         check_type winsock2.h "struct pollfd"
3978         check_type ws2tcpip.h "struct sockaddr_in6"
3979         check_type ws2tcpip.h "struct sockaddr_storage"
3980         check_struct winsock2.h "struct sockaddr" sa_len
3981     else
3982         disable network
3983     fi
3984 fi
3985
3986 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3987 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3988
3989 check_func  access
3990 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3991 check_func  fcntl
3992 check_func  fork
3993 check_func_headers stdlib.h getenv
3994 check_func  gethrtime
3995 check_func  getopt
3996 check_func  getrusage
3997 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3998 check_func  gettimeofday
3999 check_func  inet_aton $network_extralibs
4000 check_func  isatty
4001 check_func  localtime_r
4002 check_func  ${malloc_prefix}memalign            && enable memalign
4003 check_func  mkstemp
4004 check_func  mmap
4005 check_func  mprotect
4006 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4007 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4008 check_func  setrlimit
4009 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4010 check_func  strerror_r
4011 check_func  sched_getaffinity
4012 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4013 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4014 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4015 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4016 check_func  sysconf
4017 check_func  sysctl
4018 check_func  usleep
4019 check_func_headers conio.h kbhit
4020 check_func_headers windows.h PeekNamedPipe
4021 check_func_headers io.h setmode
4022 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4023 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4024 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4025 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4026 check_func_headers windows.h GetProcessAffinityMask
4027 check_func_headers windows.h GetProcessTimes
4028 check_func_headers windows.h GetSystemTimeAsFileTime
4029 check_func_headers windows.h MapViewOfFile
4030 check_func_headers windows.h SetConsoleTextAttribute
4031 check_func_headers windows.h Sleep
4032 check_func_headers windows.h VirtualAlloc
4033 check_func_headers glob.h glob
4034 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4035
4036 check_header cl/cl.h
4037 check_header direct.h
4038 check_header dlfcn.h
4039 check_header dxva.h
4040 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4041 check_header io.h
4042 check_header libcrystalhd/libcrystalhd_if.h
4043 check_header malloc.h
4044 check_header poll.h
4045 check_header sys/mman.h
4046 check_header sys/param.h
4047 check_header sys/resource.h
4048 check_header sys/select.h
4049 check_header sys/time.h
4050 check_header termios.h
4051 check_header unistd.h
4052 check_header vdpau/vdpau.h
4053 check_header vdpau/vdpau_x11.h
4054 check_header VideoDecodeAcceleration/VDADecoder.h
4055 check_header windows.h
4056 check_header X11/extensions/XvMClib.h
4057 check_header asm/types.h
4058
4059 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4060 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4061
4062 if ! disabled w32threads && ! enabled pthreads; then
4063     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4064 fi
4065
4066 # check for some common methods of building with pthread support
4067 # do this before the optional library checks as some of them require pthreads
4068 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4069     enable pthreads
4070     if check_func pthread_create; then
4071         :
4072     elif check_func pthread_create -pthread; then
4073         add_cflags -pthread
4074         add_extralibs -pthread
4075     elif check_func pthread_create -pthreads; then
4076         add_cflags -pthreads
4077         add_extralibs -pthreads
4078     elif check_func pthread_create -lpthreadGC2; then
4079         add_extralibs -lpthreadGC2
4080     elif ! check_lib pthread.h pthread_create -lpthread; then
4081         disable pthreads
4082     fi
4083 fi
4084
4085 for thread in $THREADS_LIST; do
4086     if enabled $thread; then
4087         test -n "$thread_type" &&
4088             die "ERROR: Only one thread type must be selected." ||
4089             thread_type="$thread"
4090     fi
4091 done
4092
4093 if enabled pthreads; then
4094   check_func pthread_cancel
4095 fi
4096
4097 enabled sync_val_compare_and_swap && enable atomics_gcc
4098 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4099 enabled MemoryBarrier && enable atomics_win32
4100
4101 check_lib math.h sin -lm && LIBM="-lm"
4102 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4103
4104 atan2f_args=2
4105 ldexpf_args=2
4106 powf_args=2
4107
4108 for func in $MATH_FUNCS; do
4109     eval check_mathfunc $func \${${func}_args:-1}
4110 done
4111
4112 # these are off by default, so fail if requested and not available
4113 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4114                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4115                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4116 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4117 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4118 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4119 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4120 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4121 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4122 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4123 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4124                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4125                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4126 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4127 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4128 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4129 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"
4130 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4131 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4132 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4133                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4134                                done || die "ERROR: libgsm not found"; }
4135 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4136 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4137 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4138 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4139 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4140 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4141 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4142 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4143                                check_lib openjpeg.h opj_version -lopenjpeg ||
4144                                die "ERROR: libopenjpeg not found"; }
4145 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4146 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4147 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4148 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4149 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4150 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_frame
4151 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4152 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4153 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4154     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4155     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4156 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4157 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4158                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4159                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4160 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4161 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4162 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4163 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4164 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4165 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4166 enabled libvpx            && {
4167     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4168                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4169     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 ||
4170                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4171     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4172     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4173 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4174 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4175                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4176                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4177 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4178 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4179 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4180 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4181                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4182                                die "ERROR: openal not found"; } &&
4183                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4184                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4185 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4186                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4187                                die "ERROR: opencl not found"; } &&
4188                              { enabled_any w32threads os2threads &&
4189                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4190                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4191                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4192                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4193 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4194                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4195                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4196                                die "ERROR: openssl not found"; }
4197
4198 if enabled gnutls; then
4199     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4200     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4201 fi
4202
4203 # libdc1394 check
4204 if enabled libdc1394; then
4205     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4206         enable libdc1394_2; } ||
4207     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4208         enable libdc1394_1; } ||
4209     die "ERROR: No version of libdc1394 found "
4210 fi
4211
4212 SDL_CONFIG="${cross_prefix}sdl-config"
4213 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4214     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4215     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4216     enable sdl
4217 else
4218   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4219     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4220     sdl_libs=$("${SDL_CONFIG}" --libs)
4221     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4222     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4223     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4224     enable sdl
4225   fi
4226 fi
4227 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4228
4229 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4230 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4231 perl --version > /dev/null 2>&1 && enable perl || disable perl
4232 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4233 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4234
4235 check_header linux/fb.h
4236 check_header linux/videodev.h
4237 check_header linux/videodev2.h
4238 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4239
4240 check_header sys/videoio.h
4241
4242 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4243 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4244 # w32api 3.12 had it defined wrong
4245 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4246
4247 check_type "dshow.h" IBaseFilter
4248
4249 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4250 { check_header dev/bktr/ioctl_meteor.h &&
4251   check_header dev/bktr/ioctl_bt848.h; } ||
4252 { check_header machine/ioctl_meteor.h &&
4253   check_header machine/ioctl_bt848.h; } ||
4254 { check_header dev/video/meteor/ioctl_meteor.h &&
4255   check_header dev/video/bktr/ioctl_bt848.h; } ||
4256 check_header dev/ic/bt8xx.h
4257
4258 check_header sndio.h
4259 if check_struct sys/soundcard.h audio_buf_info bytes; then
4260     enable_safe sys/soundcard.h
4261 else
4262     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4263     #include <sys/soundcard.h>
4264     audio_buf_info abc;
4265 EOF
4266 fi
4267 check_header soundcard.h
4268
4269 enabled_any alsa_indev alsa_outdev &&
4270     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4271
4272 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4273     check_func jack_port_get_latency_range -ljack
4274
4275 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4276
4277 if enabled libcdio; then
4278     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4279     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4280     die "ERROR: libcdio-paranoia not found"
4281 fi
4282
4283 enabled x11grab                                           &&
4284 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4285 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4286 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4287
4288 enabled vaapi &&
4289     check_lib va/va.h vaInitialize -lva ||
4290     disable vaapi
4291
4292 enabled vdpau &&
4293     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4294     disable vdpau
4295
4296 # Funny iconv installations are not unusual, so check it after all flags have been set
4297 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4298
4299 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4300
4301 # add some useful compiler flags if supported
4302 check_cflags -Wdeclaration-after-statement
4303 check_cflags -Wall
4304 check_cflags -Wno-parentheses
4305 check_cflags -Wno-switch
4306 check_cflags -Wno-format-zero-length
4307 check_cflags -Wdisabled-optimization
4308 check_cflags -Wpointer-arith
4309 check_cflags -Wredundant-decls
4310 check_cflags -Wno-pointer-sign
4311 check_cflags -Wwrite-strings
4312 check_cflags -Wtype-limits
4313 check_cflags -Wundef
4314 check_cflags -Wmissing-prototypes
4315 check_cflags -Wno-pointer-to-int-cast
4316 check_cflags -Wstrict-prototypes
4317 enabled extra_warnings && check_cflags -Winline
4318
4319 # add some linker flags
4320 check_ldflags -Wl,--warn-common
4321 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4322 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4323
4324 enabled xmm_clobber_test &&
4325     check_ldflags -Wl,--wrap,avcodec_open2              \
4326                   -Wl,--wrap,avcodec_decode_audio4      \
4327                   -Wl,--wrap,avcodec_decode_video2      \
4328                   -Wl,--wrap,avcodec_decode_subtitle2   \
4329                   -Wl,--wrap,avcodec_encode_audio2      \
4330                   -Wl,--wrap,avcodec_encode_video       \
4331                   -Wl,--wrap,avcodec_encode_subtitle    \
4332                   -Wl,--wrap,sws_scale ||
4333     disable xmm_clobber_test
4334
4335 echo "X{};" > $TMPV
4336 if test_ldflags -Wl,--version-script,$TMPV; then
4337     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4338     check_cc <<EOF && enable symver_asm_label
4339 void ff_foo(void) __asm__ ("av_foo@VERSION");
4340 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4341 EOF
4342     check_cc <<EOF && enable symver_gnu_asm
4343 __asm__(".symver ff_foo,av_foo@VERSION");
4344 void ff_foo(void) {}
4345 EOF
4346 fi
4347
4348 if [ -z "$optflags" ]; then
4349     if enabled small; then
4350         optflags=$cflags_size
4351     elif enabled optimizations; then
4352         optflags=$cflags_speed
4353     else
4354         optflags=$cflags_noopt
4355     fi
4356 fi
4357
4358 check_optflags(){
4359     check_cflags "$@"
4360     enabled lto && check_ldflags "$@"
4361 }
4362
4363
4364 if enabled lto; then
4365     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4366     check_cflags  -flto
4367     check_ldflags -flto $cpuflags
4368 fi
4369
4370 check_optflags $optflags
4371 check_optflags -fno-math-errno
4372 check_optflags -fno-signed-zeros
4373
4374 enabled ftrapv && check_cflags -ftrapv
4375
4376 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4377 int x;
4378 EOF
4379
4380
4381 if enabled icc; then
4382     # Just warnings, no remarks
4383     check_cflags -w1
4384     # -wd: Disable following warnings
4385     # 144, 167, 556: -Wno-pointer-sign
4386     # 188: enumerated type mixed with another type
4387     # 1292: attribute "foo" ignored
4388     # 1419: external declaration in primary source file
4389     # 10006: ignoring unknown option -fno-signed-zeros
4390     # 10148: ignoring unknown option -Wno-parentheses
4391     # 10156: ignoring option '-W'; no argument required
4392     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4393     # 11030: Warning unknown option --as-needed
4394     # 10156: ignoring option '-export'; no argument required
4395     check_ldflags -wd10156,11030
4396     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4397     enable ebp_available
4398     if enabled x86_32; then
4399         icc_version=$($cc -dumpversion)
4400         test ${icc_version%%.*} -ge 11 &&
4401             check_cflags -falign-stack=maintain-16-byte ||
4402             disable aligned_stack
4403     fi
4404 elif enabled ccc; then
4405     # disable some annoying warnings
4406     add_cflags -msg_disable bitnotint
4407     add_cflags -msg_disable mixfuncvoid
4408     add_cflags -msg_disable nonstandcast
4409     add_cflags -msg_disable unsupieee
4410 elif enabled gcc; then
4411     check_optflags -fno-tree-vectorize
4412     check_cflags -Werror=implicit-function-declaration
4413     check_cflags -Werror=missing-prototypes
4414     check_cflags -Werror=return-type
4415     check_cflags -Werror=vla
4416 elif enabled llvm_gcc; then
4417     check_cflags -mllvm -stack-alignment=16
4418 elif enabled clang; then
4419     check_cflags -mllvm -stack-alignment=16
4420     check_cflags -Qunused-arguments
4421     check_cflags -Werror=implicit-function-declaration
4422     check_cflags -Werror=missing-prototypes
4423     check_cflags -Werror=return-type
4424 elif enabled armcc; then
4425     # 2523: use of inline assembler is deprecated
4426     add_cflags -W${armcc_opt},--diag_suppress=2523
4427     add_cflags -W${armcc_opt},--diag_suppress=1207
4428     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4429     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4430     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4431     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4432 elif enabled tms470; then
4433     add_cflags -pds=824 -pds=837
4434 elif enabled pathscale; then
4435     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4436 elif enabled_any msvc icl; then
4437     enabled x86_32 && disable aligned_stack
4438     enabled_all x86_32 debug && add_cflags -Oy-
4439     if enabled icl; then
4440         # basically -fstrict-aliasing that does not work (correctly) on icl 13.x
4441         check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4442         # icl will pass the inline asm tests but inline asm is currently
4443         # not supported (build will fail)
4444         disable inline_asm
4445     fi
4446 fi
4447
4448 case $target_os in
4449     osf1)
4450         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4451     ;;
4452     plan9)
4453         add_cppflags -Dmain=plan9_main
4454     ;;
4455 esac
4456
4457 enable frame_thread_encoder
4458 enabled_any $THREADS_LIST      && enable threads
4459 enabled_any $ATOMICS_LIST      && enable atomics_native
4460
4461 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4462
4463 check_deps $CONFIG_LIST       \
4464            $CONFIG_EXTRA      \
4465            $HAVE_LIST         \
4466            $ALL_COMPONENTS    \
4467
4468
4469 if test $target_os = "haiku"; then
4470     disable memalign
4471     disable posix_memalign
4472 fi
4473
4474 ! enabled_any memalign posix_memalign aligned_malloc &&
4475     enabled_any $need_memalign && enable memalign_hack
4476
4477 # add_dep lib dep
4478 # -> enable ${lib}_deps_${dep}
4479 # -> add $dep to ${lib}_deps only once
4480 add_dep() {
4481     lib=$1
4482     dep=$2
4483     enabled "${lib}_deps_${dep}" && return 0
4484     enable  "${lib}_deps_${dep}"
4485     prepend "${lib}_deps" $dep
4486 }
4487
4488 # merge deps lib components
4489 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4490 merge_deps() {
4491     lib=$1
4492     shift
4493     for comp in $*; do
4494         enabled $comp || continue
4495         eval "dep=\"\$${comp}_deps\""
4496         for d in $dep; do
4497             add_dep $lib $d
4498         done
4499     done
4500 }
4501
4502 merge_deps libavfilter $FILTER_LIST
4503
4504 echo "install prefix            $prefix"
4505 echo "source path               $source_path"
4506 echo "C compiler                $cc"
4507 echo "ARCH                      $arch ($cpu)"
4508 if test "$build_suffix" != ""; then
4509     echo "build suffix              $build_suffix"
4510 fi
4511 if test "$progs_suffix" != ""; then
4512     echo "progs suffix              $progs_suffix"
4513 fi
4514 if test "$extra_version" != ""; then
4515     echo "version string suffix     $extra_version"
4516 fi
4517 echo "big-endian                ${bigendian-no}"
4518 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4519 if enabled x86; then
4520     echo "${yasmexe}                      ${yasm-no}"
4521     echo "MMX enabled               ${mmx-no}"
4522     echo "MMXEXT enabled            ${mmxext-no}"
4523     echo "3DNow! enabled            ${amd3dnow-no}"
4524     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4525     echo "SSE enabled               ${sse-no}"
4526     echo "SSSE3 enabled             ${ssse3-no}"
4527     echo "AVX enabled               ${avx-no}"
4528     echo "FMA4 enabled              ${fma4-no}"
4529     echo "i686 features enabled     ${i686-no}"
4530     echo "CMOV is fast              ${fast_cmov-no}"
4531     echo "EBX available             ${ebx_available-no}"
4532     echo "EBP available             ${ebp_available-no}"
4533 fi
4534 if enabled arm; then
4535     echo "ARMv5TE enabled           ${armv5te-no}"
4536     echo "ARMv6 enabled             ${armv6-no}"
4537     echo "ARMv6T2 enabled           ${armv6t2-no}"
4538     echo "VFP enabled               ${vfp-no}"
4539     echo "NEON enabled              ${neon-no}"
4540     echo "THUMB enabled             ${thumb-no}"
4541 fi
4542 if enabled mips; then
4543     echo "MIPS FPU enabled          ${mipsfpu-no}"
4544     echo "MIPS32R2 enabled          ${mips32r2-no}"
4545     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4546     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4547 fi
4548 if enabled ppc; then
4549     echo "AltiVec enabled           ${altivec-no}"
4550     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4551     echo "dcbzl available           ${dcbzl-no}"
4552 fi
4553 if enabled sparc; then
4554     echo "VIS enabled               ${vis-no}"
4555 fi
4556 echo "debug symbols             ${debug-no}"
4557 echo "strip symbols             ${stripping-no}"
4558 echo "optimize for size         ${small-no}"
4559 echo "optimizations             ${optimizations-no}"
4560 echo "static                    ${static-no}"
4561 echo "shared                    ${shared-no}"
4562 echo "postprocessing support    ${postproc-no}"
4563 echo "new filter support        ${avfilter-no}"
4564 echo "network support           ${network-no}"
4565 echo "threading support         ${thread_type-no}"
4566 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4567 echo "SDL support               ${sdl-no}"
4568 echo "opencl enabled            ${opencl-no}"
4569 echo "texi2html enabled         ${texi2html-no}"
4570 echo "perl enabled              ${perl-no}"
4571 echo "pod2man enabled           ${pod2man-no}"
4572 echo "makeinfo enabled          ${makeinfo-no}"
4573 test -n "$random_seed" &&
4574     echo "random seed               ${random_seed}"
4575 echo
4576
4577 echo "External libraries:"
4578 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4579 echo
4580
4581 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4582     echo "Enabled ${type}s:"
4583     eval list=\$$(toupper $type)_LIST
4584     print_enabled '_*' $list | print_3_columns
4585     echo
4586 done
4587
4588 license="LGPL version 2.1 or later"
4589 if enabled nonfree; then
4590     license="nonfree and unredistributable"
4591 elif enabled gplv3; then
4592     license="GPL version 3 or later"
4593 elif enabled lgplv3; then
4594     license="LGPL version 3 or later"
4595 elif enabled gpl; then
4596     license="GPL version 2 or later"
4597 fi
4598
4599 echo "License: $license"
4600
4601 echo "Creating config.mak, config.h, and doc/config.texi..."
4602
4603 test -e Makefile || $ln_s "$source_path/Makefile" .
4604
4605 enabled stripping || strip="echo skipping strip"
4606
4607 config_files="$TMPH config.mak doc/config.texi"
4608
4609 cat > config.mak <<EOF
4610 # Automatically generated by configure - do not modify!
4611 ifndef FFMPEG_CONFIG_MAK
4612 FFMPEG_CONFIG_MAK=1
4613 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4614 prefix=$prefix
4615 LIBDIR=\$(DESTDIR)$libdir
4616 SHLIBDIR=\$(DESTDIR)$shlibdir
4617 INCDIR=\$(DESTDIR)$incdir
4618 BINDIR=\$(DESTDIR)$bindir
4619 DATADIR=\$(DESTDIR)$datadir
4620 MANDIR=\$(DESTDIR)$mandir
4621 SRC_PATH=$source_path
4622 ifndef MAIN_MAKEFILE
4623 SRC_PATH:=\$(SRC_PATH:.%=..%)
4624 endif
4625 CC_IDENT=$cc_ident
4626 ARCH=$arch
4627 CC=$cc
4628 CXX=$cxx
4629 AS=$as
4630 LD=$ld
4631 DEPCC=$dep_cc
4632 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4633 DEPAS=$as
4634 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4635 YASM=$yasmexe
4636 DEPYASM=$yasmexe
4637 AR=$ar
4638 ARFLAGS=$arflags
4639 AR_O=$ar_o
4640 RANLIB=$ranlib
4641 CP=cp -p
4642 LN_S=$ln_s
4643 STRIP=$strip
4644 CPPFLAGS=$CPPFLAGS
4645 CFLAGS=$CFLAGS
4646 CXXFLAGS=$CXXFLAGS
4647 ASFLAGS=$ASFLAGS
4648 AS_C=$AS_C
4649 AS_O=$AS_O
4650 CC_C=$CC_C
4651 CC_E=$CC_E
4652 CC_O=$CC_O
4653 CXX_C=$CXX_C
4654 CXX_O=$CXX_O
4655 LD_O=$LD_O
4656 LD_LIB=$LD_LIB
4657 LD_PATH=$LD_PATH
4658 DLLTOOL=$dlltool
4659 LDFLAGS=$LDFLAGS
4660 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4661 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4662 YASMFLAGS=$YASMFLAGS
4663 BUILDSUF=$build_suffix
4664 PROGSSUF=$progs_suffix
4665 FULLNAME=$FULLNAME
4666 LIBPREF=$LIBPREF
4667 LIBSUF=$LIBSUF
4668 LIBNAME=$LIBNAME
4669 SLIBPREF=$SLIBPREF
4670 SLIBSUF=$SLIBSUF
4671 EXESUF=$EXESUF
4672 EXTRA_VERSION=$extra_version
4673 CCDEP=$CCDEP
4674 CXXDEP=$CXXDEP
4675 CCDEP_FLAGS=$CCDEP_FLAGS
4676 ASDEP=$ASDEP
4677 ASDEP_FLAGS=$ASDEP_FLAGS
4678 CC_DEPFLAGS=$CC_DEPFLAGS
4679 AS_DEPFLAGS=$AS_DEPFLAGS
4680 HOSTCC=$host_cc
4681 HOSTLD=$host_ld
4682 HOSTCFLAGS=$host_cflags
4683 HOSTCPPFLAGS=$host_cppflags
4684 HOSTEXESUF=$HOSTEXESUF
4685 HOSTLDFLAGS=$host_ldflags
4686 HOSTLIBS=$host_libs
4687 DEPHOSTCC=$host_cc
4688 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4689 HOSTCCDEP=$HOSTCCDEP
4690 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4691 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4692 HOSTCC_C=$HOSTCC_C
4693 HOSTCC_O=$HOSTCC_O
4694 HOSTLD_O=$HOSTLD_O
4695 TARGET_EXEC=$target_exec $target_exec_args
4696 TARGET_PATH=$target_path
4697 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4698 LIBS-ffplay=$sdl_libs
4699 CFLAGS-ffplay=$sdl_cflags
4700 ZLIB=$($ldflags_filter -lz)
4701 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4702 EXTRALIBS=$extralibs
4703 COMPAT_OBJS=$compat_objs
4704 EXEOBJS=$exeobjs
4705 INSTALL=$install
4706 LIBTARGET=${LIBTARGET}
4707 SLIBNAME=${SLIBNAME}
4708 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4709 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4710 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4711 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4712 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4713 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4714 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4715 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4716 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4717 NOREDZONE_FLAGS=$noredzone_flags
4718 EOF
4719
4720 get_version(){
4721     lcname=lib${1}
4722     name=$(toupper $lcname)
4723     file=$source_path/$lcname/version.h
4724     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4725     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4726     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4727     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4728     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4729 }
4730
4731 map 'get_version $v' $LIBRARY_LIST
4732
4733 cat > $TMPH <<EOF
4734 /* Automatically generated by configure - do not modify! */
4735 #ifndef FFMPEG_CONFIG_H
4736 #define FFMPEG_CONFIG_H
4737 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4738 #define FFMPEG_LICENSE "$(c_escape $license)"
4739 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4740 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4741 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4742 #define av_restrict $_restrict
4743 #define EXTERN_PREFIX "${extern_prefix}"
4744 #define EXTERN_ASM ${extern_prefix}
4745 #define SLIBSUF "$SLIBSUF"
4746 #define HAVE_MMX2 HAVE_MMXEXT
4747 EOF
4748
4749 test -n "$assert_level" &&
4750     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4751
4752 test -n "$malloc_prefix" &&
4753     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4754
4755 if enabled yasm; then
4756     append config_files $TMPASM
4757     printf '' >$TMPASM
4758 fi
4759
4760 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4761
4762
4763 mkdir -p doc
4764 echo "@c auto-generated by configure" > doc/config.texi
4765
4766 print_config ARCH_   "$config_files" $ARCH_LIST
4767 print_config HAVE_   "$config_files" $HAVE_LIST
4768 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4769                                      $CONFIG_EXTRA      \
4770                                      $ALL_COMPONENTS    \
4771
4772 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4773 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4774
4775 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4776 cp_if_changed $TMPH config.h
4777 touch .config
4778
4779 enabled yasm && cp_if_changed $TMPASM config.asm
4780
4781 cat > $TMPH <<EOF
4782 /* Generated by ffconf */
4783 #ifndef AVUTIL_AVCONFIG_H
4784 #define AVUTIL_AVCONFIG_H
4785 EOF
4786
4787 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4788
4789 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4790
4791 cp_if_changed $TMPH libavutil/avconfig.h
4792
4793 if test -n "$WARNINGS"; then
4794     printf "\n$WARNINGS"
4795     enabled fatal_warnings && exit 1
4796 fi
4797
4798 # build pkg-config files
4799
4800 pkgconfig_generate(){
4801     name=$1
4802     shortname=${name#lib}${build_suffix}
4803     comment=$2
4804     version=$3
4805     libs=$4
4806     requires=$5
4807     enabled ${name#lib} || return 0
4808     mkdir -p $name
4809     cat <<EOF > $name/$name${build_suffix}.pc
4810 prefix=$prefix
4811 exec_prefix=\${prefix}
4812 libdir=$libdir
4813 includedir=$incdir
4814
4815 Name: $name
4816 Description: $comment
4817 Version: $version
4818 Requires: $(enabled shared || echo $requires)
4819 Requires.private: $(enabled shared && echo $requires)
4820 Conflicts:
4821 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4822 Libs.private: $(enabled shared && echo $libs)
4823 Cflags: -I\${includedir}
4824 EOF
4825
4826 mkdir -p doc/examples/pc-uninstalled
4827 includedir=${source_path}
4828 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4829     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4830 prefix=
4831 exec_prefix=
4832 libdir=\${pcfiledir}/../../../$name
4833 includedir=${includedir}
4834
4835 Name: $name
4836 Description: $comment
4837 Version: $version
4838 Requires: $requires
4839 Conflicts:
4840 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4841 Cflags: -I\${includedir}
4842 EOF
4843 }
4844
4845 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4846 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4847 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4848 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4849 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4850 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4851 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4852 lavfi_libs=${lavfi_libs%, }
4853
4854 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4855 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4856
4857 pkgconfig_generate libavutil     "FFmpeg utility library"               "$LIBAVUTIL_VERSION"     "$LIBM"
4858 pkgconfig_generate libavcodec    "FFmpeg codec library"                 "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4859 pkgconfig_generate libavformat   "FFmpeg container format library"      "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4860 pkgconfig_generate libavdevice   "FFmpeg device handling library"       "$LIBAVDEVICE_VERSION"   "$extralibs" "$lavd_libs"
4861 pkgconfig_generate libavfilter   "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4862 pkgconfig_generate libpostproc   "FFmpeg postprocessing library"        "$LIBPOSTPROC_VERSION"   ""           "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4863 pkgconfig_generate libavresample "Libav audio resampling library"       "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4864 pkgconfig_generate libswscale    "FFmpeg image rescaling library"       "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4865 pkgconfig_generate libswresample "FFmpeg audio resampling library"      "$LIBSWRESAMPLE_VERSION" "$LIBM"      "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4866
4867 fix_ffmpeg_remote(){
4868     git_remote_from=$1
4869     git_remote_to=$2
4870     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4871     if [ "$fixme_remote" != "" ]; then
4872         echolog "
4873 Outdated domain in git config, the official domain for ffmpeg git is since
4874 November 2011, source.ffmpeg.org, both the old and the new point to the same
4875 repository and server. To update it enter the following commands:
4876 "
4877         for remote in $fixme_remote; do
4878             echolog "git remote set-url $remote $git_remote_to"
4879         done
4880     fi
4881 }
4882
4883 if test -f "$source_path/.git/config"; then
4884     remote_from=git.videolan.org
4885     remote_to=source.ffmpeg.org
4886     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4887     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4888 fi