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