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   --enable-vaapi           enable VAAPI code
 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 alac_encoder_select="lpc"
1722 als_decoder_select="dsputil"
1723 amrnb_decoder_select="lsp"
1724 amrwb_decoder_select="lsp"
1725 amv_decoder_select="dsputil hpeldsp"
1726 amv_encoder_select="aandcttables"
1727 ape_decoder_select="dsputil"
1728 asv1_decoder_select="dsputil"
1729 asv1_encoder_select="dsputil"
1730 asv2_decoder_select="dsputil"
1731 asv2_encoder_select="dsputil"
1732 atrac1_decoder_select="mdct sinewin"
1733 atrac3_decoder_select="mdct"
1734 bink_decoder_select="dsputil hpeldsp"
1735 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1736 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1737 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1738 cllc_decoder_select="dsputil"
1739 comfortnoise_encoder_select="lpc"
1740 cook_decoder_select="dsputil mdct sinewin"
1741 cscd_decoder_select="lzo"
1742 cscd_decoder_suggest="zlib"
1743 dca_decoder_select="mdct"
1744 dirac_decoder_select="dsputil dwt golomb videodsp"
1745 dnxhd_decoder_select="dsputil"
1746 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1747 dvvideo_decoder_select="dsputil"
1748 dvvideo_encoder_select="dsputil"
1749 dxa_decoder_select="zlib"
1750 eac3_decoder_select="ac3_decoder"
1751 eac3_encoder_select="ac3_encoder"
1752 eamad_decoder_select="aandcttables dsputil mpegvideo"
1753 eatgq_decoder_select="aandcttables"
1754 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1755 exr_decoder_select="zlib"
1756 ffv1_decoder_select="dsputil golomb rangecoder"
1757 ffv1_encoder_select="dsputil rangecoder"
1758 ffvhuff_decoder_select="dsputil"
1759 ffvhuff_encoder_select="dsputil huffman"
1760 flac_decoder_select="golomb"
1761 flac_encoder_select="dsputil golomb lpc"
1762 flashsv_decoder_select="zlib"
1763 flashsv_encoder_select="zlib"
1764 flashsv2_encoder_select="zlib"
1765 flashsv2_decoder_select="zlib"
1766 flv_decoder_select="h263_decoder"
1767 flv_encoder_select="h263_encoder"
1768 fourxm_decoder_select="dsputil"
1769 fraps_decoder_select="dsputil huffman"
1770 g729_decoder_select="dsputil"
1771 h261_decoder_select="error_resilience mpegvideo"
1772 h261_encoder_select="aandcttables mpegvideoenc"
1773 h263_decoder_select="error_resilience h263_parser mpegvideo"
1774 h263_encoder_select="aandcttables mpegvideoenc"
1775 h263i_decoder_select="h263_decoder"
1776 h263p_encoder_select="h263_encoder"
1777 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1778 h264_decoder_suggest="error_resilience"
1779 huffyuv_decoder_select="dsputil"
1780 huffyuv_encoder_select="dsputil huffman"
1781 iac_decoder_select="dsputil fft mdct sinewin"
1782 imc_decoder_select="dsputil fft mdct sinewin"
1783 indeo3_decoder_select="hpeldsp"
1784 interplay_video_decoder_select="hpeldsp"
1785 jpegls_decoder_select="dsputil golomb hpeldsp"
1786 jpegls_encoder_select="golomb"
1787 jv_decoder_select="dsputil"
1788 lagarith_decoder_select="dsputil"
1789 ljpeg_encoder_select="aandcttables mpegvideoenc"
1790 loco_decoder_select="golomb"
1791 mdec_decoder_select="dsputil error_resilience mpegvideo"
1792 mimic_decoder_select="dsputil hpeldsp"
1793 mjpeg_decoder_select="dsputil hpeldsp"
1794 mjpegb_decoder_select="dsputil hpeldsp"
1795 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1796 mlp_decoder_select="dsputil mlp_parser"
1797 motionpixels_decoder_select="dsputil"
1798 mp1_decoder_select="mpegaudio"
1799 mp1float_decoder_select="mpegaudio"
1800 mp2_decoder_select="mpegaudio"
1801 mp2float_decoder_select="mpegaudio"
1802 mp3_decoder_select="mpegaudio"
1803 mp3adu_decoder_select="mpegaudio"
1804 mp3adufloat_decoder_select="mpegaudio"
1805 mp3float_decoder_select="mpegaudio"
1806 mp3on4_decoder_select="mpegaudio"
1807 mp3on4float_decoder_select="mpegaudio"
1808 mpc7_decoder_select="dsputil mpegaudiodsp"
1809 mpc8_decoder_select="dsputil mpegaudiodsp"
1810 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1811 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1812 mpeg1video_decoder_select="error_resilience mpegvideo"
1813 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1814 mpeg2video_decoder_select="error_resilience mpegvideo"
1815 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1816 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1817 mpeg4_encoder_select="h263_encoder"
1818 msmpeg4v1_decoder_select="h263_decoder"
1819 msmpeg4v2_decoder_select="h263_decoder"
1820 msmpeg4v2_encoder_select="h263_encoder"
1821 msmpeg4v3_decoder_select="h263_decoder"
1822 msmpeg4v3_encoder_select="h263_encoder"
1823 mss2_decoder_select="error_resilience vc1_decoder"
1824 mxpeg_decoder_select="dsputil hpeldsp"
1825 nellymoser_decoder_select="mdct sinewin"
1826 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1827 nuv_decoder_select="dsputil lzo"
1828 png_decoder_select="zlib"
1829 png_encoder_select="dsputil zlib"
1830 prores_decoder_select="dsputil"
1831 prores_encoder_select="dsputil"
1832 qcelp_decoder_select="lsp"
1833 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1834 ra_144_encoder_select="audio_frame_queue lpc"
1835 ralf_decoder_select="golomb"
1836 rtjpeg_decoder_select="dsputil"
1837 rv10_decoder_select="error_resilience h263_decoder"
1838 rv10_encoder_select="h263_encoder"
1839 rv20_decoder_select="error_resilience h263_decoder"
1840 rv20_encoder_select="h263_encoder"
1841 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1842 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1843 shorten_decoder_select="golomb"
1844 sipr_decoder_select="lsp"
1845 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1846 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1847 sonic_decoder_select="golomb"
1848 sonic_encoder_select="golomb"
1849 sonic_ls_encoder_select="golomb"
1850 sp5x_decoder_select="dsputil hpeldsp"
1851 svq1_decoder_select="hpeldsp"
1852 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1853 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1854 svq3_decoder_suggest="error_resilience zlib"
1855 tak_decoder_select="dsputil"
1856 theora_decoder_select="vp3_decoder"
1857 tiff_decoder_suggest="zlib"
1858 tiff_encoder_suggest="zlib"
1859 thp_decoder_select="dsputil hpeldsp"
1860 truehd_decoder_select="mlp_parser"
1861 truemotion2_decoder_select="dsputil"
1862 truespeech_decoder_select="dsputil"
1863 tscc_decoder_select="zlib"
1864 twinvq_decoder_select="mdct lsp sinewin"
1865 utvideo_decoder_select="dsputil"
1866 utvideo_encoder_select="dsputil huffman"
1867 vble_decoder_select="dsputil"
1868 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1869 vc1image_decoder_select="vc1_decoder"
1870 vorbis_decoder_select="mdct"
1871 vorbis_encoder_select="mdct"
1872 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1873 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1874 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1875 vp6a_decoder_select="vp6_decoder"
1876 vp6f_decoder_select="vp6_decoder"
1877 vp8_decoder_select="h264pred videodsp"
1878 wmapro_decoder_select="mdct sinewin"
1879 wmav1_decoder_select="mdct sinewin"
1880 wmav1_encoder_select="mdct sinewin"
1881 wmav2_decoder_select="mdct sinewin"
1882 wmav2_encoder_select="mdct sinewin"
1883 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1884 wmv1_decoder_select="h263_decoder"
1885 wmv1_encoder_select="h263_encoder"
1886 wmv2_decoder_select="h263_decoder videodsp"
1887 wmv2_encoder_select="h263_encoder"
1888 wmv3_decoder_select="vc1_decoder"
1889 wmv3image_decoder_select="wmv3_decoder"
1890 zerocodec_decoder_select="zlib"
1891 zlib_decoder_select="zlib"
1892 zlib_encoder_select="zlib"
1893 zmbv_decoder_select="zlib"
1894 zmbv_encoder_select="zlib"
1895
1896 # hardware accelerators
1897 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1898 dxva2_deps="dxva2api_h"
1899 vaapi_deps="va_va_h"
1900 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1901 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1902 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1903
1904 h263_vaapi_hwaccel_deps="vaapi"
1905 h263_vaapi_hwaccel_select="h263_decoder"
1906 h263_vdpau_hwaccel_deps="vdpau"
1907 h263_vdpau_hwaccel_select="h263_decoder"
1908 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1909 h264_dxva2_hwaccel_deps="dxva2"
1910 h264_dxva2_hwaccel_select="h264_decoder"
1911 h264_vaapi_hwaccel_deps="vaapi"
1912 h264_vaapi_hwaccel_select="h264_decoder"
1913 h264_vda_decoder_deps="vda"
1914 h264_vda_decoder_select="h264_decoder"
1915 h264_vda_hwaccel_deps="vda"
1916 h264_vda_hwaccel_select="h264_decoder"
1917 h264_vdpau_decoder_deps="vdpau"
1918 h264_vdpau_decoder_select="h264_decoder"
1919 h264_vdpau_hwaccel_deps="vdpau"
1920 h264_vdpau_hwaccel_select="h264_decoder"
1921 mpeg_vdpau_decoder_deps="vdpau"
1922 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1923 mpeg1_vdpau_decoder_deps="vdpau"
1924 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1925 mpeg1_vdpau_hwaccel_deps="vdpau"
1926 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1927 mpeg2_crystalhd_decoder_select="crystalhd"
1928 mpeg2_dxva2_hwaccel_deps="dxva2"
1929 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1930 mpeg2_vaapi_hwaccel_deps="vaapi"
1931 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1932 mpeg2_vdpau_hwaccel_deps="vdpau"
1933 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1934 mpeg4_crystalhd_decoder_select="crystalhd"
1935 mpeg4_vaapi_hwaccel_deps="vaapi"
1936 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1937 mpeg4_vdpau_decoder_deps="vdpau"
1938 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1939 mpeg4_vdpau_hwaccel_deps="vdpau"
1940 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1941 msmpeg4_crystalhd_decoder_select="crystalhd"
1942 vc1_crystalhd_decoder_select="crystalhd"
1943 vc1_dxva2_hwaccel_deps="dxva2"
1944 vc1_dxva2_hwaccel_select="vc1_decoder"
1945 vc1_vaapi_hwaccel_deps="vaapi"
1946 vc1_vaapi_hwaccel_select="vc1_decoder"
1947 vc1_vdpau_decoder_deps="vdpau"
1948 vc1_vdpau_decoder_select="vc1_decoder"
1949 vc1_vdpau_hwaccel_deps="vdpau"
1950 vc1_vdpau_hwaccel_select="vc1_decoder"
1951 wmv3_crystalhd_decoder_select="crystalhd"
1952 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1953 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1954 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1955 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1956
1957 # parsers
1958 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1959 mpeg4video_parser_select="error_resilience mpegvideo"
1960 mpegvideo_parser_select="error_resilience mpegvideo"
1961 vc1_parser_select="mpegvideo"
1962
1963 # external libraries
1964 libaacplus_encoder_deps="libaacplus"
1965 libcelt_decoder_deps="libcelt"
1966 libfaac_encoder_deps="libfaac"
1967 libfaac_encoder_select="audio_frame_queue"
1968 libfdk_aac_encoder_deps="libfdk_aac"
1969 libfdk_aac_encoder_select="audio_frame_queue"
1970 libgsm_decoder_deps="libgsm"
1971 libgsm_encoder_deps="libgsm"
1972 libgsm_ms_decoder_deps="libgsm"
1973 libgsm_ms_encoder_deps="libgsm"
1974 libilbc_decoder_deps="libilbc"
1975 libilbc_encoder_deps="libilbc"
1976 libmodplug_demuxer_deps="libmodplug"
1977 libmp3lame_encoder_deps="libmp3lame"
1978 libmp3lame_encoder_select="audio_frame_queue"
1979 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1980 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1981 libopencore_amrnb_encoder_select="audio_frame_queue"
1982 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1983 libopenjpeg_decoder_deps="libopenjpeg"
1984 libopenjpeg_encoder_deps="libopenjpeg"
1985 libopus_decoder_deps="libopus"
1986 libopus_encoder_deps="libopus"
1987 libopus_encoder_select="audio_frame_queue"
1988 libquvi_demuxer_deps="libquvi"
1989 libschroedinger_decoder_deps="libschroedinger"
1990 libschroedinger_encoder_deps="libschroedinger"
1991 libshine_encoder_deps="libshine"
1992 libshine_encoder_select="audio_frame_queue"
1993 libspeex_decoder_deps="libspeex"
1994 libspeex_encoder_deps="libspeex"
1995 libspeex_encoder_select="audio_frame_queue"
1996 libstagefright_h264_decoder_deps="libstagefright_h264"
1997 libtheora_encoder_deps="libtheora"
1998 libtwolame_encoder_deps="libtwolame"
1999 libvo_aacenc_encoder_deps="libvo_aacenc"
2000 libvo_aacenc_encoder_select="audio_frame_queue"
2001 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2002 libvorbis_decoder_deps="libvorbis"
2003 libvorbis_encoder_deps="libvorbis"
2004 libvorbis_encoder_select="audio_frame_queue"
2005 libvpx_vp8_decoder_deps="libvpx"
2006 libvpx_vp8_encoder_deps="libvpx"
2007 libvpx_vp9_decoder_deps="libvpx"
2008 libvpx_vp9_encoder_deps="libvpx"
2009 libx264_encoder_deps="libx264"
2010 libx264rgb_encoder_deps="libx264"
2011 libxavs_encoder_deps="libxavs"
2012 libxvid_encoder_deps="libxvid"
2013 libutvideo_decoder_deps="libutvideo"
2014 libutvideo_encoder_deps="libutvideo"
2015
2016 # demuxers / muxers
2017 ac3_demuxer_select="ac3_parser"
2018 asf_stream_muxer_select="asf_muxer"
2019 avisynth_demuxer_deps="avisynth"
2020 dirac_demuxer_select="dirac_parser"
2021 dts_demuxer_select="dca_parser"
2022 dtshd_demuxer_select="dca_parser"
2023 eac3_demuxer_select="ac3_parser"
2024 f4v_muxer_select="mov_muxer"
2025 flac_demuxer_select="flac_parser"
2026 ipod_muxer_select="mov_muxer"
2027 ismv_muxer_select="mov_muxer"
2028 libnut_demuxer_deps="libnut"
2029 libnut_muxer_deps="libnut"
2030 matroska_audio_muxer_select="matroska_muxer"
2031 matroska_demuxer_suggest="bzlib lzo zlib"
2032 mov_demuxer_suggest="zlib"
2033 mov_muxer_select="rtpenc_chain"
2034 mp3_demuxer_select="mpegaudio_parser"
2035 mp4_muxer_select="mov_muxer"
2036 mpegts_muxer_select="adts_muxer latm_muxer"
2037 mpegtsraw_demuxer_select="mpegts_demuxer"
2038 mxf_d10_muxer_select="mxf_muxer"
2039 ogg_demuxer_select="golomb"
2040 psp_muxer_select="mov_muxer"
2041 rtp_demuxer_select="sdp_demuxer"
2042 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2043 rtsp_demuxer_select="http_protocol rtpdec"
2044 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2045 sap_demuxer_select="sdp_demuxer"
2046 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2047 sdp_demuxer_select="rtpdec"
2048 smoothstreaming_muxer_select="ismv_muxer"
2049 spdif_muxer_select="aac_parser"
2050 tak_demuxer_select="tak_parser"
2051 tg2_muxer_select="mov_muxer"
2052 tgp_muxer_select="mov_muxer"
2053 vobsub_demuxer_select="mpegps_demuxer"
2054 w64_demuxer_deps="wav_demuxer"
2055 w64_muxer_deps="wav_muxer"
2056
2057 # indevs / outdevs
2058 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2059 alsa_outdev_deps="alsa_asoundlib_h"
2060 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2061 caca_outdev_deps="libcaca"
2062 dshow_indev_deps="IBaseFilter"
2063 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2064 dv1394_indev_deps="dv1394 dv_demuxer"
2065 fbdev_indev_deps="linux_fb_h"
2066 iec61883_indev_deps="libiec61883"
2067 jack_indev_deps="jack_jack_h sem_timedwait"
2068 lavfi_indev_deps="avfilter"
2069 libcdio_indev_deps="libcdio"
2070 libdc1394_indev_deps="libdc1394"
2071 libv4l2_indev_deps="libv4l2"
2072 openal_indev_deps="openal"
2073 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2074 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2075 pulse_indev_deps="libpulse"
2076 sdl_outdev_deps="sdl"
2077 sndio_indev_deps="sndio_h"
2078 sndio_outdev_deps="sndio_h"
2079 v4l_indev_deps="linux_videodev_h"
2080 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2081 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2082 vfwcap_indev_extralibs="-lavicap32"
2083 x11grab_indev_deps="x11grab"
2084
2085 # protocols
2086 bluray_protocol_deps="libbluray"
2087 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2088 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2089 ffrtmpcrypt_protocol_select="tcp_protocol"
2090 ffrtmphttp_protocol_deps="!librtmp_protocol"
2091 ffrtmphttp_protocol_select="http_protocol"
2092 gopher_protocol_select="network"
2093 httpproxy_protocol_select="tcp_protocol"
2094 http_protocol_select="tcp_protocol"
2095 https_protocol_select="tls_protocol"
2096 librtmp_protocol_deps="librtmp"
2097 librtmpe_protocol_deps="librtmp"
2098 librtmps_protocol_deps="librtmp"
2099 librtmpt_protocol_deps="librtmp"
2100 librtmpte_protocol_deps="librtmp"
2101 mmsh_protocol_select="http_protocol"
2102 mmst_protocol_select="network"
2103 rtmp_protocol_deps="!librtmp_protocol"
2104 rtmp_protocol_select="tcp_protocol"
2105 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2106 rtmps_protocol_deps="!librtmp_protocol"
2107 rtmps_protocol_select="tls_protocol"
2108 rtmpt_protocol_select="ffrtmphttp_protocol"
2109 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2110 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2111 rtp_protocol_select="udp_protocol"
2112 sctp_protocol_deps="struct_sctp_event_subscribe"
2113 sctp_protocol_select="network"
2114 srtp_protocol_select="rtp_protocol"
2115 tcp_protocol_select="network"
2116 tls_protocol_deps_any="openssl gnutls"
2117 tls_protocol_select="tcp_protocol"
2118 udp_protocol_select="network"
2119
2120 # filters
2121 aconvert_filter_deps="swresample"
2122 amovie_filter_deps="avcodec avformat"
2123 aresample_filter_deps="swresample"
2124 ass_filter_deps="libass"
2125 asyncts_filter_deps="avresample"
2126 atempo_filter_deps="avcodec rdft"
2127 azmq_filter_deps="libzmq"
2128 blackframe_filter_deps="gpl"
2129 boxblur_filter_deps="gpl"
2130 colormatrix_filter_deps="gpl"
2131 cropdetect_filter_deps="gpl"
2132 dctdnoiz_filter_deps="avcodec"
2133 delogo_filter_deps="gpl"
2134 deshake_filter_deps="avcodec"
2135 deshake_filter_select="dsputil"
2136 drawtext_filter_deps="libfreetype"
2137 ebur128_filter_deps="gpl"
2138 flite_filter_deps="libflite"
2139 frei0r_filter_deps="frei0r dlopen"
2140 frei0r_filter_extralibs='$ldl'
2141 frei0r_src_filter_deps="frei0r dlopen"
2142 frei0r_src_filter_extralibs='$ldl'
2143 geq_filter_deps="gpl"
2144 histeq_filter_deps="gpl"
2145 hqdn3d_filter_deps="gpl"
2146 hue_filter_deps="gpl"
2147 interlace_filter_deps="gpl"
2148 kerndeint_filter_deps="gpl"
2149 movie_filter_deps="avcodec avformat"
2150 mp_filter_deps="gpl avcodec swscale inline_asm"
2151 mpdecimate_filter_deps="gpl avcodec"
2152 mptestsrc_filter_deps="gpl"
2153 negate_filter_deps="lut_filter"
2154 noise_filter_deps="gpl"
2155 resample_filter_deps="avresample"
2156 ocv_filter_deps="libopencv"
2157 owdenoise_filter_deps="gpl"
2158 pan_filter_deps="swresample"
2159 pp_filter_deps="gpl postproc"
2160 removelogo_filter_deps="avcodec avformat swscale"
2161 scale_filter_deps="swscale"
2162 smartblur_filter_deps="gpl swscale"
2163 showspectrum_filter_deps="avcodec rdft"
2164 stereo3d_filter_deps="gpl"
2165 subtitles_filter_deps="avformat avcodec libass"
2166 super2xsai_filter_deps="gpl"
2167 tinterlace_filter_deps="gpl"
2168 vidstabdetect_filter_deps="libvidstab"
2169 vidstabtransform_filter_deps="libvidstab"
2170 yadif_filter_deps="gpl"
2171 pixfmts_super2xsai_test_deps="super2xsai_filter"
2172 tinterlace_merge_test_deps="tinterlace_filter"
2173 tinterlace_pad_test_deps="tinterlace_filter"
2174 zmq_filter_deps="libzmq"
2175
2176 # libraries
2177 avcodec_deps="avutil"
2178 avdevice_deps="avutil avcodec avformat"
2179 avfilter_deps="avutil"
2180 avformat_deps="avutil avcodec"
2181 avresample_deps="avutil"
2182 postproc_deps="avutil gpl"
2183 swscale_deps="avutil"
2184
2185 # programs
2186 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2187 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2188                null_filter
2189                setpts_filter trim_filter"
2190 ffplay_deps="avcodec avformat swscale swresample sdl"
2191 ffplay_select="rdft crop_filter"
2192 ffprobe_deps="avcodec avformat"
2193 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2194 ffserver_extralibs='$ldl'
2195
2196 # documentation
2197 podpages_deps="perl"
2198 manpages_deps="perl pod2man"
2199 htmlpages_deps="texi2html"
2200 txtpages_deps="makeinfo"
2201 doc_deps_any="manpages htmlpages podpages txtpages"
2202
2203 # default parameters
2204
2205 logfile="config.log"
2206
2207 # installation paths
2208 prefix_default="/usr/local"
2209 bindir_default='${prefix}/bin'
2210 datadir_default='${prefix}/share/ffmpeg'
2211 incdir_default='${prefix}/include'
2212 libdir_default='${prefix}/lib'
2213 mandir_default='${prefix}/share/man'
2214 shlibdir_default="$libdir_default"
2215
2216 # toolchain
2217 ar_default="ar"
2218 cc_default="gcc"
2219 cxx_default="g++"
2220 host_cc_default="gcc"
2221 cp_f="cp -f"
2222 install="install"
2223 ln_s="ln -s -f"
2224 nm_default="nm -g"
2225 objformat="elf"
2226 pkg_config_default=pkg-config
2227 ranlib="ranlib"
2228 strip_default="strip"
2229 yasmexe_default="yasm"
2230
2231 nogas=":"
2232
2233 # machine
2234 arch_default=$(uname -m)
2235 cpu="generic"
2236
2237 # OS
2238 target_os_default=$(tolower $(uname -s))
2239 host_os=$target_os_default
2240
2241 # configurable options
2242 enable $PROGRAM_LIST
2243 enable $DOCUMENT_LIST
2244 enable $(filter_out avresample $LIBRARY_LIST)
2245 enable stripping
2246
2247 enable asm
2248 enable debug
2249 enable doc
2250 enable optimizations
2251 enable runtime_cpudetect
2252 enable safe_bitstream_reader
2253 enable static
2254 enable swscale_alpha
2255
2256 # By default, enable only those hwaccels that have no external dependencies.
2257 enable dxva2 vdpau
2258
2259 # build settings
2260 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2261 FFSERVERLDFLAGS=-Wl,-E
2262 LIBPREF="lib"
2263 LIBSUF=".a"
2264 FULLNAME='$(NAME)$(BUILDSUF)'
2265 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2266 SLIBPREF="lib"
2267 SLIBSUF=".so"
2268 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2269 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2270 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2271 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2272 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2273 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2274
2275 asflags_filter=echo
2276 cflags_filter=echo
2277 ldflags_filter=echo
2278
2279 AS_C='-c'
2280 AS_O='-o $@'
2281 CC_C='-c'
2282 CC_E='-E -o $@'
2283 CC_O='-o $@'
2284 CXX_C='-c'
2285 CXX_O='-o $@'
2286 LD_O='-o $@'
2287 LD_LIB='-l%'
2288 LD_PATH='-L'
2289 HOSTCC_C='-c'
2290 HOSTCC_O='-o $@'
2291 HOSTLD_O='-o $@'
2292
2293 host_cflags='-O3 -g'
2294 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2295 host_libs='-lm'
2296 host_cflags_filter=echo
2297 host_ldflags_filter=echo
2298
2299 target_path='$(CURDIR)'
2300
2301 # since the object filename is not given with the -MM flag, the compiler
2302 # is only able to print the basename, and we must add the path ourselves
2303 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2304 DEPFLAGS='-MM'
2305
2306 # find source path
2307 if test -f configure; then
2308     source_path=.
2309 else
2310     source_path=$(cd $(dirname "$0"); pwd)
2311     echo "$source_path" | grep -q '[[:blank:]]' &&
2312         die "Out of tree builds are impossible with whitespace in source path."
2313     test -e "$source_path/config.h" &&
2314         die "Out of tree builds are impossible with config.h in source dir."
2315 fi
2316
2317 for v in "$@"; do
2318     r=${v#*=}
2319     l=${v%"$r"}
2320     r=$(sh_quote "$r")
2321     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2322 done
2323
2324 find_things(){
2325     thing=$1
2326     pattern=$2
2327     file=$source_path/$3
2328     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2329 }
2330
2331 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2332 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2333 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2334 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2335 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2336 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2337 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2338 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2339 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2340 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2341 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2342
2343 ALL_COMPONENTS="
2344     $BSF_LIST
2345     $DECODER_LIST
2346     $DEMUXER_LIST
2347     $ENCODER_LIST
2348     $FILTER_LIST
2349     $HWACCEL_LIST
2350     $INDEV_LIST
2351     $MUXER_LIST
2352     $OUTDEV_LIST
2353     $PARSER_LIST
2354     $PROTOCOL_LIST
2355 "
2356
2357 for n in $COMPONENT_LIST; do
2358     v=$(toupper ${n%s})_LIST
2359     eval enable \$$v
2360     eval ${n}_if_any="\$$v"
2361 done
2362
2363 enable $ARCH_EXT_LIST
2364
2365 die_unknown(){
2366     echo "Unknown option \"$1\"."
2367     echo "See $0 --help for available options."
2368     exit 1
2369 }
2370
2371 print_3_columns() {
2372     cat | tr ' ' '\n' | sort | pr -r -3 -t
2373 }
2374
2375 show_list() {
2376     suffix=_$1
2377     shift
2378     echo $* | sed s/$suffix//g | print_3_columns
2379     exit 0
2380 }
2381
2382 rand_list(){
2383     IFS=', '
2384     set -- $*
2385     unset IFS
2386     for thing; do
2387         comp=${thing%:*}
2388         prob=${thing#$comp}
2389         prob=${prob#:}
2390         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2391         echo "prob ${prob:-0.5}"
2392         printf '%s\n' $comp
2393     done
2394 }
2395
2396 do_random(){
2397     action=$1
2398     shift
2399     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2400     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2401 }
2402
2403 for opt do
2404     optval="${opt#*=}"
2405     case "$opt" in
2406         --extra-ldflags=*)
2407             add_ldflags $optval
2408         ;;
2409         --extra-libs=*)
2410             add_extralibs $optval
2411         ;;
2412         --disable-devices)
2413             disable $INDEV_LIST $OUTDEV_LIST
2414         ;;
2415         --enable-debug=*)
2416             debuglevel="$optval"
2417         ;;
2418         --disable-programs)
2419             disable $PROGRAM_LIST
2420         ;;
2421         --disable-everything)
2422             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2423         ;;
2424         --disable-all)
2425             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2426             disable $LIBRARY_LIST $PROGRAM_LIST doc
2427         ;;
2428         --enable-random|--disable-random)
2429             action=${opt%%-random}
2430             do_random ${action#--} $COMPONENT_LIST
2431         ;;
2432         --enable-random=*|--disable-random=*)
2433             action=${opt%%-random=*}
2434             do_random ${action#--} $optval
2435         ;;
2436         --enable-*=*|--disable-*=*)
2437             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2438             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2439             eval list=\$$(toupper $thing)_LIST
2440             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2441             list=$(filter "$name" $list)
2442             [ "$list" = "" ] && warn "Option $opt did not match anything"
2443             $action $list
2444         ;;
2445         --enable-?*|--disable-?*)
2446             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2447             if is_in $option $COMPONENT_LIST; then
2448                 test $action = disable && action=unset
2449                 eval $action \$$(toupper ${option%s})_LIST
2450             elif is_in $option $CMDLINE_SELECT; then
2451                 $action $option
2452             else
2453                 die_unknown $opt
2454             fi
2455         ;;
2456         --list-*)
2457             NAME="${opt#--list-}"
2458             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2459             NAME=${NAME%s}
2460             eval show_list $NAME \$$(toupper $NAME)_LIST
2461         ;;
2462         --help|-h) show_help
2463         ;;
2464         --fatal-warnings) enable fatal_warnings
2465         ;;
2466         *)
2467             optname="${opt%%=*}"
2468             optname="${optname#--}"
2469             optname=$(echo "$optname" | sed 's/-/_/g')
2470             if is_in $optname $CMDLINE_SET; then
2471                 eval $optname='$optval'
2472             elif is_in $optname $CMDLINE_APPEND; then
2473                 append $optname "$optval"
2474             else
2475                 die_unknown $opt
2476             fi
2477         ;;
2478     esac
2479 done
2480
2481 disabled logging && logfile=/dev/null
2482
2483 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2484 set >> $logfile
2485
2486 test -n "$cross_prefix" && enable cross_compile
2487
2488 if enabled cross_compile; then
2489     test -n "$arch" && test -n "$target_os" ||
2490         die "Must specify target arch and OS when cross-compiling"
2491 fi
2492
2493 ar_default="${cross_prefix}${ar_default}"
2494 cc_default="${cross_prefix}${cc_default}"
2495 cxx_default="${cross_prefix}${cxx_default}"
2496 nm_default="${cross_prefix}${nm_default}"
2497 pkg_config_default="${cross_prefix}${pkg_config_default}"
2498 ranlib="${cross_prefix}${ranlib}"
2499 strip_default="${cross_prefix}${strip_default}"
2500
2501 sysinclude_default="${sysroot}/usr/include"
2502
2503 test -n "$valgrind" && toolchain="valgrind-memcheck"
2504
2505 case "$toolchain" in
2506     clang-asan)
2507         cc_default="clang"
2508         add_cflags  -fsanitize=address
2509         add_ldflags -fsanitize=address
2510     ;;
2511     clang-tsan)
2512         cc_default="clang"
2513         add_cflags  -fsanitize=thread -pie
2514         add_ldflags -fsanitize=thread -pie
2515     ;;
2516     valgrind-memcheck)
2517         target_exec_default=${valgrind:-"valgrind"}
2518         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"
2519     ;;
2520     msvc)
2521         cc_default="c99wrap cl"
2522         ld_default="c99wrap link"
2523         nm_default="dumpbin -symbols"
2524         ar_default="lib"
2525         target_os_default="win32"
2526     ;;
2527     gcov)
2528         add_cflags  -fprofile-arcs -ftest-coverage
2529         add_ldflags -fprofile-arcs -ftest-coverage
2530     ;;
2531     ?*)
2532         die "Unknown toolchain $toolchain"
2533     ;;
2534 esac
2535
2536 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2537 enabled cross_compile || host_cc_default=$cc
2538 set_default host_cc
2539
2540 if ! $pkg_config --version >/dev/null 2>&1; then
2541     warn "$pkg_config not found, library detection may fail."
2542     pkg_config=false
2543 fi
2544
2545 exesuf() {
2546     case $1 in
2547         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2548     esac
2549 }
2550
2551 EXESUF=$(exesuf $target_os)
2552 HOSTEXESUF=$(exesuf $host_os)
2553
2554 # set temporary file name
2555 : ${TMPDIR:=$TEMPDIR}
2556 : ${TMPDIR:=$TMP}
2557 : ${TMPDIR:=/tmp}
2558
2559 if ! check_cmd mktemp -u XXXXXX; then
2560     # simple replacement for missing mktemp
2561     # NOT SAFE FOR GENERAL USE
2562     mktemp(){
2563         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2564     }
2565 fi
2566
2567 tmpfile(){
2568     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2569         (set -C; exec > $tmp) 2>/dev/null ||
2570         die "Unable to create temporary file in $TMPDIR."
2571     append TMPFILES $tmp
2572     eval $1=$tmp
2573 }
2574
2575 trap 'rm -f -- $TMPFILES' EXIT
2576
2577 tmpfile TMPASM .asm
2578 tmpfile TMPC   .c
2579 tmpfile TMPCPP .cpp
2580 tmpfile TMPE   $EXESUF
2581 tmpfile TMPH   .h
2582 tmpfile TMPO   .o
2583 tmpfile TMPS   .S
2584 tmpfile TMPSH  .sh
2585 tmpfile TMPV   .ver
2586
2587 unset -f mktemp
2588
2589 chmod +x $TMPE
2590
2591 # make sure we can execute files in $TMPDIR
2592 cat > $TMPSH 2>> $logfile <<EOF
2593 #! /bin/sh
2594 EOF
2595 chmod +x $TMPSH >> $logfile 2>&1
2596 if ! $TMPSH >> $logfile 2>&1; then
2597     cat <<EOF
2598 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2599 variable to another directory and make sure that it is not mounted noexec.
2600 EOF
2601     die "Sanity test failed."
2602 fi
2603
2604 ccc_flags(){
2605     for flag; do
2606         case $flag in
2607             -std=c99)           echo -c99                       ;;
2608             -mcpu=*)            echo -arch ${flag#*=}           ;;
2609             -mieee)             echo -ieee                      ;;
2610             -O*|-fast)          echo $flag                      ;;
2611             -fno-math-errno)    echo -assume nomath_errno       ;;
2612             -g)                 echo -g3                        ;;
2613             -Wall)              echo -msg_enable level2         ;;
2614             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2615             -Wl,*)              echo $flag                      ;;
2616             -f*|-W*)                                            ;;
2617             *)                  echo $flag                      ;;
2618         esac
2619    done
2620 }
2621
2622 msvc_flags(){
2623     for flag; do
2624         case $flag in
2625             -fomit-frame-pointer) echo -Oy ;;
2626             -g)                   echo -Z7 ;;
2627             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2628                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2629                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2630                                        -wd4554 \
2631                                        -wd4996 -wd4273 ;;
2632             -std=c99)             ;;
2633             -fno-math-errno)      ;;
2634             -fno-common)          ;;
2635             -fno-signed-zeros)    ;;
2636             -fPIC)                ;;
2637             -lz)                  echo zlib.lib ;;
2638             -lavifil32)           echo vfw32.lib ;;
2639             -lavicap32)           echo vfw32.lib user32.lib ;;
2640             -l*)                  echo ${flag#-l}.lib ;;
2641             *)                    echo $flag ;;
2642         esac
2643     done
2644 }
2645
2646 pgi_flags(){
2647     for flag; do
2648         case $flag in
2649             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2650             -fomit-frame-pointer) echo -Mnoframe ;;
2651             -g)                   echo -gopt ;;
2652             *)                    echo $flag ;;
2653         esac
2654     done
2655 }
2656
2657 suncc_flags(){
2658     for flag; do
2659         case $flag in
2660             -march=*|-mcpu=*)
2661                 case "${flag#*=}" in
2662                     native)                   echo -xtarget=native       ;;
2663                     v9|niagara)               echo -xarch=sparc          ;;
2664                     ultrasparc)               echo -xarch=sparcvis       ;;
2665                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2666                     i586|pentium)             echo -xchip=pentium        ;;
2667                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2668                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2669                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2670                     pentium4*)          echo -xtarget=pentium4           ;;
2671                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2672                     *-sse3)             echo -xarch=sse3                 ;;
2673                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2674                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2675                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2676                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2677                     bdver*)                   echo -xarch=avx            ;;
2678                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2679                     k8|opteron|athlon64|athlon-fx)
2680                                               echo -xarch=sse2a          ;;
2681                     athlon*)                  echo -xarch=pentium_proa   ;;
2682                 esac
2683                 ;;
2684             -std=c99)             echo -xc99              ;;
2685             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2686             -fPIC)                echo -KPIC -xcode=pic32 ;;
2687             -W*,*)                echo $flag              ;;
2688             -f*-*|-W*|-mimpure-text)                      ;;
2689             -shared)              echo -G                 ;;
2690             *)                    echo $flag              ;;
2691         esac
2692     done
2693 }
2694
2695 tms470_flags(){
2696     for flag; do
2697         case $flag in
2698             -march=*|-mcpu=*)
2699                 case "${flag#*=}" in
2700                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2701                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2702                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2703                     armv6*|arm11*)          echo -mv=6   ;;
2704                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2705                                             echo -mv=5e  ;;
2706                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2707                 esac
2708                 ;;
2709             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2710             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2711             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2712             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2713             -msoft-float)   echo --float_support=vfplib       ;;
2714             -O[0-3]|-mf=*)  echo $flag                        ;;
2715             -g)             echo -g -mn                       ;;
2716             -pds=*)         echo $flag                        ;;
2717             -D*|-I*)        echo $flag                        ;;
2718             --gcc|--abi=*)  echo $flag                        ;;
2719             -me)            echo $flag                        ;;
2720         esac
2721     done
2722 }
2723
2724 probe_cc(){
2725     pfx=$1
2726     _cc=$2
2727
2728     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2729     unset _ld_o _ldflags _ld_lib _ld_path
2730     unset _depflags _DEPCMD _DEPFLAGS
2731     _flags_filter=echo
2732
2733     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2734         _type=llvm_gcc
2735         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2736         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2737         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2738         _cflags_speed='-O3'
2739         _cflags_size='-Os'
2740     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2741         _type=gcc
2742         gcc_version=$($_cc --version | head -n1)
2743         gcc_basever=$($_cc -dumpversion)
2744         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2745         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2746         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2747         if ! $_cc -dumpversion | grep -q '^2\.'; then
2748             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2749         fi
2750         _cflags_speed='-O3'
2751         _cflags_size='-Os'
2752     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2753         _type=icc
2754         _ident=$($_cc --version | head -n1)
2755         _depflags='-MMD'
2756         _cflags_speed='-O3'
2757         _cflags_size='-Os'
2758         _cflags_noopt='-O1'
2759     elif $_cc -v 2>&1 | grep -q xlc; then
2760         _type=xlc
2761         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2762         _cflags_speed='-O5'
2763         _cflags_size='-O5 -qcompact'
2764     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2765         _type=ccc
2766         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2767         _DEPFLAGS='-M'
2768         _cflags_speed='-fast'
2769         _cflags_size='-O1'
2770         _flags_filter=ccc_flags
2771     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2772         test -d "$sysroot" || die "No valid sysroot specified."
2773         _type=armcc
2774         _ident=$($_cc --vsn | head -n1)
2775         armcc_conf="$PWD/armcc.conf"
2776         $_cc --arm_linux_configure                 \
2777              --arm_linux_config_file="$armcc_conf" \
2778              --configure_sysroot="$sysroot"        \
2779              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2780              die "Error creating armcc configuration file."
2781         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2782         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2783         as_default="${cross_prefix}gcc"
2784         _depflags='-MMD'
2785         _cflags_speed='-O3'
2786         _cflags_size='-Os'
2787     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2788         _type=tms470
2789         _ident=$($_cc -version | head -n1 | tr -s ' ')
2790         _flags='--gcc --abi=eabi -me'
2791         _cc_e='-ppl -fe=$@'
2792         _cc_o='-fe=$@'
2793         _depflags='-ppa -ppd=$(@:.o=.d)'
2794         _cflags_speed='-O3 -mf=5'
2795         _cflags_size='-O3 -mf=2'
2796         _flags_filter=tms470_flags
2797     elif $_cc -v 2>&1 | grep -q clang; then
2798         _type=clang
2799         _ident=$($_cc --version | head -n1)
2800         _depflags='-MMD'
2801         _cflags_speed='-O3'
2802         _cflags_size='-Os'
2803     elif $_cc -V 2>&1 | grep -q Sun; then
2804         _type=suncc
2805         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2806         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2807         _DEPFLAGS='-xM1 -xc99'
2808         _ldflags='-std=c99'
2809         _cflags_speed='-O5'
2810         _cflags_size='-O5 -xspace'
2811         _flags_filter=suncc_flags
2812     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2813         _type=pathscale
2814         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2815         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2816         _cflags_speed='-O2'
2817         _cflags_size='-Os'
2818         _flags_filter='filter_out -Wdisabled-optimization'
2819     elif $_cc -v 2>&1 | grep -q Open64; then
2820         _type=open64
2821         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2822         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2823         _cflags_speed='-O2'
2824         _cflags_size='-Os'
2825         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2826     elif $_cc -V 2>&1 | grep -q Portland; then
2827         _type=pgi
2828         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2829         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2830         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2831         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2832         _cflags_noopt="-O"
2833         _flags_filter=pgi_flags
2834     elif $_cc 2>&1 | grep -q Microsoft; then
2835         _type=msvc
2836         _ident=$($cc 2>&1 | head -n1)
2837         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2838         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2839         _cflags_speed="-O2"
2840         _cflags_size="-O1"
2841         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2842         if $_cc 2>&1 | grep -q Linker; then
2843             _ld_o='-out $@'
2844         else
2845             _ld_o='-Fe$@'
2846         fi
2847         _cc_o='-Fo $@'
2848         _cc_e='-P -Fi $@'
2849         _flags_filter=msvc_flags
2850         _ld_lib='lib%.a'
2851         _ld_path='-libpath:'
2852         _flags='-nologo'
2853         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2854         if [ $pfx = hostcc ]; then
2855             append _cflags -Dsnprintf=_snprintf
2856         fi
2857         disable stripping
2858     fi
2859
2860     eval ${pfx}_type=\$_type
2861     eval ${pfx}_ident=\$_ident
2862 }
2863
2864 set_ccvars(){
2865     eval ${1}_C=\${_cc_c-\${${1}_C}}
2866     eval ${1}_E=\${_cc_e-\${${1}_E}}
2867     eval ${1}_O=\${_cc_o-\${${1}_O}}
2868
2869     if [ -n "$_depflags" ]; then
2870         eval ${1}_DEPFLAGS=\$_depflags
2871     else
2872         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2873         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2874         eval DEP${1}FLAGS=\$_flags
2875     fi
2876 }
2877
2878 probe_cc cc "$cc"
2879 cflags_filter=$_flags_filter
2880 cflags_speed=$_cflags_speed
2881 cflags_size=$_cflags_size
2882 cflags_noopt=$_cflags_noopt
2883 add_cflags $_flags $_cflags
2884 cc_ldflags=$_ldflags
2885 set_ccvars CC
2886
2887 probe_cc hostcc "$host_cc"
2888 host_cflags_filter=$_flags_filter
2889 add_host_cflags  $_flags $_cflags
2890 set_ccvars HOSTCC
2891
2892 test -n "$cc_type" && enable $cc_type ||
2893     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2894
2895 : ${as_default:=$cc}
2896 : ${dep_cc_default:=$cc}
2897 : ${ld_default:=$cc}
2898 : ${host_ld_default:=$host_cc}
2899 set_default ar as dep_cc ld host_ld
2900
2901 probe_cc as "$as"
2902 asflags_filter=$_flags_filter
2903 add_asflags $_flags $_cflags
2904 set_ccvars AS
2905
2906 probe_cc ld "$ld"
2907 ldflags_filter=$_flags_filter
2908 add_ldflags $_flags $_ldflags
2909 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2910 LD_O=${_ld_o-$LD_O}
2911 LD_LIB=${_ld_lib-$LD_LIB}
2912 LD_PATH=${_ld_path-$LD_PATH}
2913
2914 probe_cc hostld "$host_ld"
2915 host_ldflags_filter=$_flags_filter
2916 add_host_ldflags $_flags $_ldflags
2917 HOSTLD_O=${_ld_o-$HOSTLD_O}
2918
2919 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2920     probe_cc depcc "$dep_cc"
2921     CCDEP=${_DEPCMD:-$DEPCMD}
2922     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2923     DEPCCFLAGS=$_flags
2924 fi
2925
2926 if $ar 2>&1 | grep -q Microsoft; then
2927     arflags="-nologo"
2928     ar_o='-out:$@'
2929 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2930     arflags="rq"
2931     ar_o='$@'
2932 else
2933     arflags="rc"
2934     ar_o='$@'
2935 fi
2936
2937 add_cflags $extra_cflags
2938 add_cxxflags $extra_cxxflags
2939 add_asflags $extra_cflags
2940
2941 if test -n "$sysroot"; then
2942     case "$cc_type" in
2943         gcc|llvm_gcc|clang)
2944             add_cppflags --sysroot="$sysroot"
2945             add_ldflags --sysroot="$sysroot"
2946         ;;
2947         tms470)
2948             add_cppflags -I"$sysinclude"
2949             add_ldflags  --sysroot="$sysroot"
2950         ;;
2951     esac
2952 fi
2953
2954 if test "$cpu" = host; then
2955     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2956
2957     case "$cc_type" in
2958         gcc|llvm_gcc)
2959             check_native(){
2960                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2961                 sed -n "/cc1.*$1=/{
2962                             s/.*$1=\\([^ ]*\\).*/\\1/
2963                             p
2964                             q
2965                         }" $TMPE
2966             }
2967             cpu=$(check_native -march || check_native -mcpu)
2968         ;;
2969     esac
2970
2971     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2972 fi
2973
2974 # Deal with common $arch aliases
2975 case "$arch" in
2976     aarch64|arm64)
2977         arch="aarch64"
2978     ;;
2979     arm*|iPad*)
2980         arch="arm"
2981     ;;
2982     mips*|IP*)
2983         arch="mips"
2984     ;;
2985     parisc*|hppa*)
2986         arch="parisc"
2987     ;;
2988     "Power Macintosh"|ppc*|powerpc*)
2989         arch="ppc"
2990     ;;
2991     s390|s390x)
2992         arch="s390"
2993     ;;
2994     sh4|sh)
2995         arch="sh4"
2996     ;;
2997     sun4u|sparc*)
2998         arch="sparc"
2999     ;;
3000     tilegx|tile-gx)
3001         arch="tilegx"
3002     ;;
3003     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3004         arch="x86"
3005     ;;
3006 esac
3007
3008 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3009 enable $arch
3010
3011 # Add processor-specific flags
3012 if enabled aarch64; then
3013
3014     case $cpu in
3015         armv*)
3016             cpuflags="-march=$cpu"
3017         ;;
3018         *)
3019             cpuflags="-mcpu=$cpu"
3020         ;;
3021     esac
3022
3023 elif enabled alpha; then
3024
3025     cpuflags="-mcpu=$cpu"
3026
3027 elif enabled arm; then
3028
3029     check_arm_arch() {
3030         check_cpp_condition stddef.h \
3031             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3032             $cpuflags
3033     }
3034
3035     probe_arm_arch() {
3036         if   check_arm_arch 4;        then echo armv4;
3037         elif check_arm_arch 4T;       then echo armv4t;
3038         elif check_arm_arch 5;        then echo armv5;
3039         elif check_arm_arch 5E;       then echo armv5e;
3040         elif check_arm_arch 5T;       then echo armv5t;
3041         elif check_arm_arch 5TE;      then echo armv5te;
3042         elif check_arm_arch 5TEJ;     then echo armv5te;
3043         elif check_arm_arch 6;        then echo armv6;
3044         elif check_arm_arch 6J;       then echo armv6j;
3045         elif check_arm_arch 6K;       then echo armv6k;
3046         elif check_arm_arch 6Z;       then echo armv6z;
3047         elif check_arm_arch 6ZK;      then echo armv6zk;
3048         elif check_arm_arch 6T2;      then echo armv6t2;
3049         elif check_arm_arch 7;        then echo armv7;
3050         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3051         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3052         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3053         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3054         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3055         fi
3056     }
3057
3058     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3059
3060     case $cpu in
3061         armv*)
3062             cpuflags="-march=$cpu"
3063             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3064         ;;
3065         *)
3066             cpuflags="-mcpu=$cpu"
3067             case $cpu in
3068                 cortex-a*)                               subarch=armv7a  ;;
3069                 cortex-r*)                               subarch=armv7r  ;;
3070                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3071                 arm11*)                                  subarch=armv6   ;;
3072                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3073                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3074                 *)                             subarch=$(probe_arm_arch) ;;
3075             esac
3076         ;;
3077     esac
3078
3079     case "$subarch" in
3080         armv5t*)    enable fast_clz                ;;
3081         armv[6-8]*) enable fast_clz fast_unaligned ;;
3082     esac
3083
3084 elif enabled avr32; then
3085
3086     case $cpu in
3087         ap7[02]0[0-2])
3088             subarch="avr32_ap"
3089             cpuflags="-mpart=$cpu"
3090         ;;
3091         ap)
3092             subarch="avr32_ap"
3093             cpuflags="-march=$cpu"
3094         ;;
3095         uc3[ab]*)
3096             subarch="avr32_uc"
3097             cpuflags="-mcpu=$cpu"
3098         ;;
3099         uc)
3100             subarch="avr32_uc"
3101             cpuflags="-march=$cpu"
3102         ;;
3103     esac
3104
3105 elif enabled bfin; then
3106
3107     cpuflags="-mcpu=$cpu"
3108
3109 elif enabled mips; then
3110
3111     cpuflags="-march=$cpu"
3112
3113     case $cpu in
3114         24kc)
3115             disable mipsfpu
3116             disable mipsdspr1
3117             disable mipsdspr2
3118         ;;
3119         24kf*)
3120             disable mipsdspr1
3121             disable mipsdspr2
3122         ;;
3123         24kec|34kc|1004kc)
3124             disable mipsfpu
3125             disable mipsdspr2
3126         ;;
3127         24kef*|34kf*|1004kf*)
3128             disable mipsdspr2
3129         ;;
3130         74kc)
3131             disable mipsfpu
3132         ;;
3133     esac
3134
3135 elif enabled ppc; then
3136
3137     case $(tolower $cpu) in
3138         601|ppc601|powerpc601)
3139             cpuflags="-mcpu=601"
3140             disable altivec
3141         ;;
3142         603*|ppc603*|powerpc603*)
3143             cpuflags="-mcpu=603"
3144             disable altivec
3145         ;;
3146         604*|ppc604*|powerpc604*)
3147             cpuflags="-mcpu=604"
3148             disable altivec
3149         ;;
3150         g3|75*|ppc75*|powerpc75*)
3151             cpuflags="-mcpu=750"
3152             disable altivec
3153         ;;
3154         g4|745*|ppc745*|powerpc745*)
3155             cpuflags="-mcpu=7450"
3156         ;;
3157         74*|ppc74*|powerpc74*)
3158             cpuflags="-mcpu=7400"
3159         ;;
3160         g5|970|ppc970|powerpc970)
3161             cpuflags="-mcpu=970"
3162         ;;
3163         power[3-7]*)
3164             cpuflags="-mcpu=$cpu"
3165         ;;
3166         cell)
3167             cpuflags="-mcpu=cell"
3168             enable ldbrx
3169         ;;
3170         e500mc)
3171             cpuflags="-mcpu=e500mc"
3172             disable altivec
3173         ;;
3174         e500v2)
3175             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3176             disable altivec
3177         ;;
3178         e500)
3179             cpuflags="-mcpu=8540 -mhard-float"
3180             disable altivec
3181         ;;
3182     esac
3183
3184 elif enabled sparc; then
3185
3186     case $cpu in
3187         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3188             cpuflags="-mcpu=$cpu"
3189             disable vis
3190         ;;
3191         ultrasparc*|niagara[234])
3192             cpuflags="-mcpu=$cpu"
3193         ;;
3194     esac
3195
3196 elif enabled x86; then
3197
3198     case $cpu in
3199         i[345]86|pentium)
3200             cpuflags="-march=$cpu"
3201             disable mmx
3202         ;;
3203         # targets that do NOT support nopl and conditional mov (cmov)
3204         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3205             cpuflags="-march=$cpu"
3206             disable i686
3207         ;;
3208         # targets that do support nopl and conditional mov (cmov)
3209         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3210             cpuflags="-march=$cpu"
3211             enable i686
3212             enable fast_cmov
3213         ;;
3214         # targets that do support conditional mov but on which it's slow
3215         pentium4|pentium4m|prescott|nocona)
3216             cpuflags="-march=$cpu"
3217             enable i686
3218             disable fast_cmov
3219         ;;
3220     esac
3221
3222 fi
3223
3224 if [ "$cpu" != generic ]; then
3225     add_cflags  $cpuflags
3226     add_asflags $cpuflags
3227 fi
3228
3229 # compiler sanity check
3230 check_exec <<EOF
3231 int main(void){ return 0; }
3232 EOF
3233 if test "$?" != 0; then
3234     echo "$cc is unable to create an executable file."
3235     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3236         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3237         echo "Only do this if you know what cross compiling means."
3238     fi
3239     die "C compiler test failed."
3240 fi
3241
3242 add_cppflags -D_ISOC99_SOURCE
3243 add_cxxflags -D__STDC_CONSTANT_MACROS
3244 check_cflags -std=c99
3245 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3246 #include <stdlib.h>
3247 EOF
3248 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3249 #include <stdlib.h>
3250 EOF
3251
3252 check_host_cflags -std=c99
3253 check_host_cflags -Wall
3254
3255 check_64bit(){
3256     arch32=$1
3257     arch64=$2
3258     expr=$3
3259     check_code cc "" "int test[2*($expr) - 1]" &&
3260         subarch=$arch64 || subarch=$arch32
3261 }
3262
3263 case "$arch" in
3264     aarch64|alpha|ia64)
3265         spic=$shared
3266     ;;
3267     mips)
3268         check_64bit mips mips64 '_MIPS_SIM > 1'
3269         spic=$shared
3270     ;;
3271     parisc)
3272         check_64bit parisc parisc64 'sizeof(void *) > 4'
3273         spic=$shared
3274     ;;
3275     ppc)
3276         check_64bit ppc ppc64 'sizeof(void *) > 4'
3277         spic=$shared
3278     ;;
3279     sparc)
3280         check_64bit sparc sparc64 'sizeof(void *) > 4'
3281         spic=$shared
3282     ;;
3283     x86)
3284         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3285         if test "$subarch" = "x86_64"; then
3286             spic=$shared
3287         fi
3288     ;;
3289     ppc)
3290         check_cc <<EOF && subarch="ppc64"
3291         int test[(int)sizeof(char*) - 7];
3292 EOF
3293     ;;
3294 esac
3295
3296 enable $subarch
3297 enabled spic && enable_weak pic
3298
3299 # OS specific
3300 case $target_os in
3301     haiku)
3302         prefix_default="/boot/common"
3303         network_extralibs="-lnetwork"
3304         host_libs=
3305         ;;
3306     sunos)
3307         FFSERVERLDFLAGS=""
3308         SHFLAGS='-shared -Wl,-h,$$(@F)'
3309         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3310         network_extralibs="-lsocket -lnsl"
3311         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3312         # When using suncc to build, the Solaris linker will mark
3313         # an executable with each instruction set encountered by
3314         # the Solaris assembler.  As our libraries contain their own
3315         # guards for processor-specific code, instead suppress
3316         # generation of the HWCAPS ELF section on Solaris x86 only.
3317         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3318         nm_default='nm -P -g'
3319         ;;
3320     netbsd)
3321         disable symver
3322         oss_indev_extralibs="-lossaudio"
3323         oss_outdev_extralibs="-lossaudio"
3324         enabled gcc || check_ldflags -Wl,-zmuldefs
3325         ;;
3326     openbsd|bitrig)
3327         disable symver
3328         SHFLAGS='-shared'
3329         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3330         SLIB_INSTALL_LINKS=
3331         oss_indev_extralibs="-lossaudio"
3332         oss_outdev_extralibs="-lossaudio"
3333         ;;
3334     dragonfly)
3335         disable symver
3336         ;;
3337     freebsd)
3338         ;;
3339     bsd/os)
3340         add_extralibs -lpoll -lgnugetopt
3341         strip="strip -d"
3342         ;;
3343     darwin)
3344         gas="gas-preprocessor.pl $cc"
3345         enabled ppc && add_asflags -force_cpusubtype_ALL
3346         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3347         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3348         strip="${strip} -x"
3349         add_ldflags -Wl,-dynamic,-search_paths_first
3350         SLIBSUF=".dylib"
3351         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3352         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3353         FFSERVERLDFLAGS=-Wl,-bind_at_load
3354         objformat="macho"
3355         enabled x86_64 && objformat="macho64"
3356         enabled_any pic shared ||
3357             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3358         ;;
3359     mingw32*)
3360         if test $target_os = "mingw32ce"; then
3361             disable network
3362         else
3363             target_os=mingw32
3364         fi
3365         LIBTARGET=i386
3366         if enabled x86_64; then
3367             LIBTARGET="i386:x86-64"
3368         elif enabled arm; then
3369             LIBTARGET=arm-wince
3370         fi
3371         check_ldflags -Wl,--nxcompat
3372         check_ldflags -Wl,--dynamicbase
3373         shlibdir_default="$bindir_default"
3374         SLIBPREF=""
3375         SLIBSUF=".dll"
3376         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3377         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3378         dlltool="${cross_prefix}dlltool"
3379         if check_cmd lib.exe -list; then
3380             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3381             if enabled x86_64; then
3382                 LIBTARGET=x64
3383             fi
3384         elif check_cmd $dlltool --version; then
3385             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3386         fi
3387         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3388         SLIB_INSTALL_LINKS=
3389         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3390         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3391         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3392         objformat="win32"
3393         ranlib=:
3394         enable dos_paths
3395         disable pic
3396         ;;
3397     win32|win64)
3398         if enabled shared; then
3399             # Link to the import library instead of the normal static library
3400             # for shared libs.
3401             LD_LIB='%.lib'
3402             # Cannot build shared and static libraries at the same time with
3403             # MSVC.
3404             disable static
3405         fi
3406         shlibdir_default="$bindir_default"
3407         SLIBPREF=""
3408         SLIBSUF=".dll"
3409         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3410         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3411         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3412         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3413         SLIB_INSTALL_LINKS=
3414         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3415         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3416         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3417         objformat="win32"
3418         ranlib=:
3419         enable dos_paths
3420         disable pic
3421         ;;
3422     cygwin*)
3423         target_os=cygwin
3424         shlibdir_default="$bindir_default"
3425         SLIBPREF="cyg"
3426         SLIBSUF=".dll"
3427         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3428         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3429         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3430         SLIB_INSTALL_LINKS=
3431         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3432         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3433         objformat="win32"
3434         enable dos_paths
3435         disable pic
3436         ;;
3437     *-dos|freedos|opendos)
3438         network_extralibs="-lsocket"
3439         objformat="coff"
3440         enable dos_paths
3441         add_cppflags -U__STRICT_ANSI__
3442         ;;
3443     linux)
3444         enable dv1394
3445         ;;
3446     irix*)
3447         target_os=irix
3448         ranlib="echo ignoring ranlib"
3449         ;;
3450     os/2*)
3451         strip="lxlite -CS"
3452         ln_s="cp -f"
3453         objformat="aout"
3454         add_cppflags -D_GNU_SOURCE
3455         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3456         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3457         FFSERVERLDFLAGS=""
3458         LIBSUF="_s.a"
3459         SLIBPREF=""
3460         SLIBSUF=".dll"
3461         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3462         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3463         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3464             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3465             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3466             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3467             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3468             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3469         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3470             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3471         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3472         enable dos_paths
3473         enable_weak os2threads
3474         ;;
3475     gnu/kfreebsd)
3476         add_cppflags -D_BSD_SOURCE
3477         ;;
3478     gnu)
3479         ;;
3480     qnx)
3481         add_cppflags -D_QNX_SOURCE
3482         network_extralibs="-lsocket"
3483         ;;
3484     symbian)
3485         SLIBSUF=".dll"
3486         enable dos_paths
3487         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3488         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3489         add_ldflags -Wl,--target1-abs,--no-undefined \
3490                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3491                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3492         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3493                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3494                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3495         ;;
3496     osf1)
3497         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3498         FFSERVERLDFLAGS=
3499         ;;
3500     minix)
3501         ;;
3502     plan9)
3503         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3504                      -D_REENTRANT_SOURCE        \
3505                      -D_RESEARCH_SOURCE         \
3506                      -DFD_SETSIZE=96            \
3507                      -DHAVE_SOCK_OPTS
3508         add_compat strtod.o strtod=avpriv_strtod
3509         network_extralibs='-lbsd'
3510         exeobjs=compat/plan9/main.o
3511         disable ffserver
3512         cp_f='cp'
3513         ;;
3514     none)
3515         ;;
3516     *)
3517         die "Unknown OS '$target_os'."
3518         ;;
3519 esac
3520
3521 # determine libc flavour
3522
3523 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3524 if check_cpp_condition features.h "defined __UCLIBC__"; then
3525     libc_type=uclibc
3526     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3527 elif check_cpp_condition features.h "defined __GLIBC__"; then
3528     libc_type=glibc
3529     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3530 # MinGW headers can be installed on Cygwin, so check for newlib first.
3531 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3532     libc_type=newlib
3533     add_cppflags -U__STRICT_ANSI__
3534 elif check_header _mingw.h; then
3535     libc_type=mingw
3536     check_cpp_condition _mingw.h \
3537         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3538             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3539         die "ERROR: MinGW runtime version must be >= 3.15."
3540     add_cppflags -U__STRICT_ANSI__
3541     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3542             __MINGW64_VERSION_MAJOR < 3"; then
3543         add_compat msvcrt/snprintf.o
3544         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3545     fi
3546 elif check_func_headers stdlib.h _get_doserrno; then
3547     libc_type=msvcrt
3548     add_compat strtod.o strtod=avpriv_strtod
3549     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3550                                  _snprintf=avpriv_snprintf  \
3551                                  vsnprintf=avpriv_vsnprintf
3552 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3553     libc_type=klibc
3554 fi
3555
3556 test -n "$libc_type" && enable $libc_type
3557
3558 # hacks for compiler/libc/os combinations
3559
3560 if enabled_all tms470 glibc; then
3561     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3562     add_cppflags -D__USER_LABEL_PREFIX__=
3563     add_cppflags -D__builtin_memset=memset
3564     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3565     add_cflags   -pds=48    # incompatible redefinition of macro
3566 fi
3567
3568 if enabled_all ccc glibc; then
3569     add_ldflags -Wl,-z,now  # calls to libots crash without this
3570 fi
3571
3572 esc(){
3573     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3574 }
3575
3576 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3577
3578 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3579
3580 set_default $PATHS_LIST
3581 set_default nm
3582
3583 # we need to build at least one lib type
3584 if ! enabled_any static shared; then
3585     cat <<EOF
3586 At least one library type must be built.
3587 Specify --enable-static to build the static libraries or --enable-shared to
3588 build the shared libraries as well. To only build the shared libraries specify
3589 --disable-static in addition to --enable-shared.
3590 EOF
3591     exit 1;
3592 fi
3593
3594 die_license_disabled() {
3595     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3596 }
3597
3598 die_license_disabled_gpl() {
3599     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3600 }
3601
3602 die_license_disabled gpl libcdio
3603 die_license_disabled gpl libutvideo
3604 die_license_disabled gpl libvidstab
3605 die_license_disabled gpl libx264
3606 die_license_disabled gpl libxavs
3607 die_license_disabled gpl libxvid
3608 die_license_disabled gpl x11grab
3609
3610 die_license_disabled nonfree libaacplus
3611 die_license_disabled nonfree libfaac
3612 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3613 enabled gpl && die_license_disabled_gpl nonfree openssl
3614
3615 die_license_disabled version3 libopencore_amrnb
3616 die_license_disabled version3 libopencore_amrwb
3617 die_license_disabled version3 libvo_aacenc
3618 die_license_disabled version3 libvo_amrwbenc
3619
3620 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3621
3622 disabled optimizations || check_cflags -fomit-frame-pointer
3623
3624 enable_weak_pic() {
3625     disabled pic && return
3626     enable pic
3627     add_cppflags -DPIC
3628     add_cflags   -fPIC
3629     add_asflags  -fPIC
3630 }
3631
3632 enabled pic && enable_weak_pic
3633
3634 check_cc <<EOF || die "Symbol mangling check failed."
3635 int ff_extern;
3636 EOF
3637 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3638 extern_prefix=${sym%%ff_extern*}
3639
3640 check_cc <<EOF && enable_weak inline_asm
3641 void foo(void) { __asm__ volatile ("" ::); }
3642 EOF
3643
3644 _restrict=
3645 for restrict_keyword in restrict __restrict__ __restrict; do
3646     check_cc <<EOF && _restrict=$restrict_keyword && break
3647 void foo(char * $restrict_keyword p);
3648 EOF
3649 done
3650
3651 check_cc <<EOF && enable attribute_packed
3652 struct { int x; } __attribute__((packed)) x;
3653 EOF
3654
3655 check_cc <<EOF && enable attribute_may_alias
3656 union { int x; } __attribute__((may_alias)) x;
3657 EOF
3658
3659 check_cc <<EOF || die "endian test failed"
3660 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3661 EOF
3662 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3663
3664 if enabled alpha; then
3665
3666     check_cflags -mieee
3667
3668 elif enabled arm; then
3669
3670     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3671 float func(float a, float b){ return a+b; }
3672 EOF
3673
3674     enabled thumb && check_cflags -mthumb || check_cflags -marm
3675     nogas=die
3676
3677     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3678         enable vfp_args
3679     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3680         case "${cross_prefix:-$cc}" in
3681             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3682             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3683 __asm__ (".eabi_attribute 28, 1");
3684 int main(void) { return 0; }
3685 EOF
3686         esac
3687         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3688     fi
3689
3690     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3691     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3692     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3693     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3694     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3695     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3696
3697     [ $target_os = linux ] ||
3698         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3699             $ARCH_EXT_LIST_ARM
3700
3701     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3702     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3703
3704     enabled_all armv6t2 shared !pic && enable_weak_pic
3705
3706 elif enabled mips; then
3707
3708     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3709     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3710      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3711     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3712      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3713     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3714      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3715     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3716      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3717
3718 elif enabled parisc; then
3719
3720     if enabled gcc; then
3721         case $($cc -dumpversion) in
3722             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3723         esac
3724     fi
3725
3726 elif enabled ppc; then
3727
3728     enable local_aligned_8 local_aligned_16
3729
3730     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3731     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3732     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3733     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3734
3735     # AltiVec flags: The FSF version of GCC differs from the Apple version
3736     if enabled altivec; then
3737         nogas=warn
3738         check_cflags -maltivec -mabi=altivec &&
3739         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3740         check_cflags -faltivec
3741
3742         # check if our compiler supports Motorola AltiVec C API
3743         check_cc <<EOF || disable altivec
3744 $inc_altivec_h
3745 int main(void) {
3746     vector signed int v1 = (vector signed int) { 0 };
3747     vector signed int v2 = (vector signed int) { 1 };
3748     v1 = vec_add(v1, v2);
3749     return 0;
3750 }
3751 EOF
3752
3753         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3754     fi
3755
3756 elif enabled sparc; then
3757
3758     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3759
3760 elif enabled x86; then
3761
3762     check_builtin rdtsc    intrin.h   "__rdtsc()"
3763     check_builtin mm_empty mmintrin.h "_mm_empty()"
3764
3765     enable local_aligned_8 local_aligned_16
3766
3767     # check whether EBP is available on x86
3768     # As 'i' is stored on the stack, this program will crash
3769     # if the base pointer is used to access it because the
3770     # base pointer is cleared in the inline assembly code.
3771     check_exec_crash <<EOF && enable ebp_available
3772 volatile int i=0;
3773 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3774 return i;
3775 EOF
3776
3777     # check whether EBX is available on x86
3778     check_inline_asm ebx_available '""::"b"(0)' &&
3779         check_inline_asm ebx_available '"":::"%ebx"'
3780
3781     # check whether xmm clobbers are supported
3782     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3783
3784     # check whether binutils is new enough to compile SSSE3/MMXEXT
3785     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3786     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3787
3788     if ! disabled_any asm mmx yasm; then
3789         if check_cmd $yasmexe --version; then
3790             enabled x86_64 && yasm_extra="-m amd64"
3791             yasm_debug="-g dwarf2"
3792         elif check_cmd nasm -v; then
3793             yasmexe=nasm
3794             yasm_debug="-g -F dwarf"
3795             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3796         fi
3797
3798         YASMFLAGS="-f $objformat $yasm_extra"
3799         enabled pic               && append YASMFLAGS "-DPIC"
3800         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3801         case "$objformat" in
3802             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3803         esac
3804
3805         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3806             die "yasm not found, use --disable-yasm for a crippled build"
3807         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3808         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3809         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3810     fi
3811
3812     case "$cpu" in
3813         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3814             disable fast_clz
3815         ;;
3816     esac
3817
3818 fi
3819
3820 if enabled asm; then
3821     as=${gas:=$as}
3822     check_as <<EOF && enable gnu_as || \
3823         $nogas "GNU assembler not found, install gas-preprocessor"
3824 .macro m n
3825 \n: .int 0
3826 .endm
3827 m x
3828 EOF
3829 fi
3830
3831 check_ldflags -Wl,--as-needed
3832
3833 if check_func dlopen; then
3834     ldl=
3835 elif check_func dlopen -ldl; then
3836     ldl=-ldl
3837 fi
3838
3839 if ! disabled network; then
3840     check_type "sys/types.h sys/socket.h" socklen_t
3841     check_type netdb.h "struct addrinfo"
3842     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3843     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3844     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3845     check_type netinet/in.h "struct sockaddr_in6"
3846     check_type poll.h "struct pollfd"
3847     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3848     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3849     check_type netinet/sctp.h "struct sctp_event_subscribe"
3850     check_func getaddrinfo $network_extralibs
3851     check_func getservbyport $network_extralibs
3852     # Prefer arpa/inet.h over winsock2
3853     if check_header arpa/inet.h ; then
3854         check_func closesocket
3855     elif check_header winsock2.h ; then
3856         check_func_headers winsock2.h closesocket -lws2 &&
3857             network_extralibs="-lws2" ||
3858         { check_func_headers winsock2.h closesocket -lws2_32 &&
3859             network_extralibs="-lws2_32"; }
3860         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3861         check_type ws2tcpip.h socklen_t
3862         check_type ws2tcpip.h "struct addrinfo"
3863         check_type ws2tcpip.h "struct group_source_req"
3864         check_type ws2tcpip.h "struct ip_mreq_source"
3865         check_type ws2tcpip.h "struct ipv6_mreq"
3866         check_type winsock2.h "struct pollfd"
3867         check_type ws2tcpip.h "struct sockaddr_in6"
3868         check_type ws2tcpip.h "struct sockaddr_storage"
3869         check_struct winsock2.h "struct sockaddr" sa_len
3870     else
3871         disable network
3872     fi
3873 fi
3874
3875 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3876 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3877
3878 check_func  access
3879 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3880 check_func  fcntl
3881 check_func  fork
3882 check_func_headers stdlib.h getenv
3883 check_func  gethrtime
3884 check_func  getopt
3885 check_func  getrusage
3886 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3887 check_func  gettimeofday
3888 check_func  inet_aton $network_extralibs
3889 check_func  isatty
3890 check_func  localtime_r
3891 check_func  ${malloc_prefix}memalign            && enable memalign
3892 check_func  mkstemp
3893 check_func  mmap
3894 check_func  mprotect
3895 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3896 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3897 check_func  setrlimit
3898 check_func  strerror_r
3899 check_func  sched_getaffinity
3900 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3901 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3902 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3903 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3904 check_func  sysconf
3905 check_func  sysctl
3906 check_func  usleep
3907 check_func_headers conio.h kbhit
3908 check_func_headers windows.h PeekNamedPipe
3909 check_func_headers io.h setmode
3910 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3911 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3912 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3913 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3914 check_func_headers windows.h GetProcessAffinityMask
3915 check_func_headers windows.h GetProcessTimes
3916 check_func_headers windows.h GetSystemTimeAsFileTime
3917 check_func_headers windows.h MapViewOfFile
3918 check_func_headers windows.h SetConsoleTextAttribute
3919 check_func_headers windows.h Sleep
3920 check_func_headers windows.h VirtualAlloc
3921 check_func_headers glob.h glob
3922
3923 check_header cl/cl.h
3924 check_header direct.h
3925 check_header dlfcn.h
3926 check_header dxva.h
3927 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3928 check_header io.h
3929 check_header libcrystalhd/libcrystalhd_if.h
3930 check_header malloc.h
3931 check_header poll.h
3932 check_header sys/mman.h
3933 check_header sys/param.h
3934 check_header sys/resource.h
3935 check_header sys/select.h
3936 check_header sys/time.h
3937 check_header termios.h
3938 check_header unistd.h
3939 check_header vdpau/vdpau.h
3940 check_header vdpau/vdpau_x11.h
3941 check_header VideoDecodeAcceleration/VDADecoder.h
3942 check_header windows.h
3943 check_header X11/extensions/XvMClib.h
3944 check_header asm/types.h
3945
3946 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3947 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3948
3949 if ! disabled w32threads && ! enabled pthreads; then
3950     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3951 fi
3952
3953 # check for some common methods of building with pthread support
3954 # do this before the optional library checks as some of them require pthreads
3955 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3956     enable pthreads
3957     if check_func pthread_create; then
3958         :
3959     elif check_func pthread_create -pthread; then
3960         add_cflags -pthread
3961         add_extralibs -pthread
3962     elif check_func pthread_create -pthreads; then
3963         add_cflags -pthreads
3964         add_extralibs -pthreads
3965     elif check_func pthread_create -lpthreadGC2; then
3966         add_extralibs -lpthreadGC2
3967     elif ! check_lib pthread.h pthread_create -lpthread; then
3968         disable pthreads
3969     fi
3970 fi
3971
3972 for thread in $THREADS_LIST; do
3973     if enabled $thread; then
3974         test -n "$thread_type" &&
3975             die "ERROR: Only one thread type must be selected." ||
3976             thread_type="$thread"
3977     fi
3978 done
3979
3980 if enabled pthreads; then
3981   check_func pthread_cancel
3982 fi
3983
3984 enabled sync_val_compare_and_swap && enable atomics_gcc
3985 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
3986 enabled MemoryBarrier && enable atomics_win32
3987
3988 check_lib math.h sin -lm && LIBM="-lm"
3989 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3990 enabled vaapi && require vaapi va/va.h vaInitialize -lva
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 if ! disabled vaapi; then
4171     check_lib va/va.h vaInitialize -lva && {
4172         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4173         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4174     } || disable vaapi
4175 fi
4176
4177 enabled vdpau &&
4178     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4179     disable vdpau
4180
4181 # Funny iconv installations are not unusual, so check it after all flags have been set
4182 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4183
4184 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4185
4186 # add some useful compiler flags if supported
4187 check_cflags -Wdeclaration-after-statement
4188 check_cflags -Wall
4189 check_cflags -Wno-parentheses
4190 check_cflags -Wno-switch
4191 check_cflags -Wno-format-zero-length
4192 check_cflags -Wdisabled-optimization
4193 check_cflags -Wpointer-arith
4194 check_cflags -Wredundant-decls
4195 check_cflags -Wno-pointer-sign
4196 check_cflags -Wwrite-strings
4197 check_cflags -Wtype-limits
4198 check_cflags -Wundef
4199 check_cflags -Wmissing-prototypes
4200 check_cflags -Wno-pointer-to-int-cast
4201 check_cflags -Wstrict-prototypes
4202 enabled extra_warnings && check_cflags -Winline
4203
4204 # add some linker flags
4205 check_ldflags -Wl,--warn-common
4206 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4207 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4208
4209 enabled xmm_clobber_test &&
4210     check_ldflags -Wl,--wrap,avcodec_open2              \
4211                   -Wl,--wrap,avcodec_decode_audio4      \
4212                   -Wl,--wrap,avcodec_decode_video2      \
4213                   -Wl,--wrap,avcodec_decode_subtitle2   \
4214                   -Wl,--wrap,avcodec_encode_audio2      \
4215                   -Wl,--wrap,avcodec_encode_video       \
4216                   -Wl,--wrap,avcodec_encode_subtitle    \
4217                   -Wl,--wrap,sws_scale ||
4218     disable xmm_clobber_test
4219
4220 echo "X{};" > $TMPV
4221 if test_ldflags -Wl,--version-script,$TMPV; then
4222     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4223     check_cc <<EOF && enable symver_asm_label
4224 void ff_foo(void) __asm__ ("av_foo@VERSION");
4225 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4226 EOF
4227     check_cc <<EOF && enable symver_gnu_asm
4228 __asm__(".symver ff_foo,av_foo@VERSION");
4229 void ff_foo(void) {}
4230 EOF
4231 fi
4232
4233 if [ -z "$optflags" ]; then
4234     if enabled small; then
4235         optflags=$cflags_size
4236     elif enabled optimizations; then
4237         optflags=$cflags_speed
4238     else
4239         optflags=$cflags_noopt
4240     fi
4241 fi
4242
4243 check_optflags(){
4244     check_cflags "$@"
4245     enabled lto && check_ldflags "$@"
4246 }
4247
4248
4249 if enabled lto; then
4250     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4251     check_cflags  -flto
4252     check_ldflags -flto $cpuflags
4253 fi
4254
4255 check_optflags $optflags
4256 check_optflags -fno-math-errno
4257 check_optflags -fno-signed-zeros
4258
4259 enabled ftrapv && check_cflags -ftrapv
4260
4261 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4262 int x;
4263 EOF
4264
4265
4266 if enabled icc; then
4267     # Just warnings, no remarks
4268     check_cflags -w1
4269     # -wd: Disable following warnings
4270     # 144, 167, 556: -Wno-pointer-sign
4271     # 188: enumerated type mixed with another type
4272     # 1292: attribute "foo" ignored
4273     # 1419: external declaration in primary source file
4274     # 10006: ignoring unknown option -fno-signed-zeros
4275     # 10148: ignoring unknown option -Wno-parentheses
4276     # 10156: ignoring option '-W'; no argument required
4277     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4278     # 11030: Warning unknown option --as-needed
4279     # 10156: ignoring option '-export'; no argument required
4280     check_ldflags -wd10156,11030
4281     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4282     enable ebp_available
4283     if enabled x86_32; then
4284         icc_version=$($cc -dumpversion)
4285         test ${icc_version%%.*} -ge 11 &&
4286             check_cflags -falign-stack=maintain-16-byte ||
4287             disable aligned_stack
4288     fi
4289 elif enabled ccc; then
4290     # disable some annoying warnings
4291     add_cflags -msg_disable bitnotint
4292     add_cflags -msg_disable mixfuncvoid
4293     add_cflags -msg_disable nonstandcast
4294     add_cflags -msg_disable unsupieee
4295 elif enabled gcc; then
4296     check_optflags -fno-tree-vectorize
4297     check_cflags -Werror=implicit-function-declaration
4298     check_cflags -Werror=missing-prototypes
4299     check_cflags -Werror=return-type
4300     check_cflags -Werror=vla
4301 elif enabled llvm_gcc; then
4302     check_cflags -mllvm -stack-alignment=16
4303 elif enabled clang; then
4304     check_cflags -mllvm -stack-alignment=16
4305     check_cflags -Qunused-arguments
4306     check_cflags -Werror=implicit-function-declaration
4307     check_cflags -Werror=missing-prototypes
4308     check_cflags -Werror=return-type
4309 elif enabled armcc; then
4310     # 2523: use of inline assembler is deprecated
4311     add_cflags -W${armcc_opt},--diag_suppress=2523
4312     add_cflags -W${armcc_opt},--diag_suppress=1207
4313     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4314     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4315     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4316     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4317 elif enabled tms470; then
4318     add_cflags -pds=824 -pds=837
4319 elif enabled pathscale; then
4320     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4321 elif enabled msvc; then
4322     enabled x86_32 && disable aligned_stack
4323 fi
4324
4325 case $target_os in
4326     osf1)
4327         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4328     ;;
4329     plan9)
4330         add_cppflags -Dmain=plan9_main
4331     ;;
4332 esac
4333
4334 enable frame_thread_encoder
4335 enabled_any $THREADS_LIST      && enable threads
4336 enabled_any $ATOMICS_LIST      && enable atomics_native
4337
4338 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4339
4340 check_deps $CONFIG_LIST       \
4341            $CONFIG_EXTRA      \
4342            $HAVE_LIST         \
4343            $ALL_COMPONENTS    \
4344
4345
4346 if test $target_os = "haiku"; then
4347     disable memalign
4348     disable posix_memalign
4349 fi
4350
4351 ! enabled_any memalign posix_memalign aligned_malloc &&
4352     enabled_any $need_memalign && enable memalign_hack
4353
4354 # add_dep lib dep
4355 # -> enable ${lib}_deps_${dep}
4356 # -> add $dep to ${lib}_deps only once
4357 add_dep() {
4358     lib=$1
4359     dep=$2
4360     enabled "${lib}_deps_${dep}" && return 0
4361     enable  "${lib}_deps_${dep}"
4362     prepend "${lib}_deps" $dep
4363 }
4364
4365 # merge deps lib components
4366 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4367 merge_deps() {
4368     lib=$1
4369     shift
4370     for comp in $*; do
4371         enabled $comp || continue
4372         eval "dep=\"\$${comp}_deps\""
4373         for d in $dep; do
4374             add_dep $lib $d
4375         done
4376     done
4377 }
4378
4379 merge_deps libavfilter $FILTER_LIST
4380
4381 echo "install prefix            $prefix"
4382 echo "source path               $source_path"
4383 echo "C compiler                $cc"
4384 echo "ARCH                      $arch ($cpu)"
4385 if test "$build_suffix" != ""; then
4386     echo "build suffix              $build_suffix"
4387 fi
4388 if test "$progs_suffix" != ""; then
4389     echo "progs suffix              $progs_suffix"
4390 fi
4391 if test "$extra_version" != ""; then
4392     echo "version string suffix     $extra_version"
4393 fi
4394 echo "big-endian                ${bigendian-no}"
4395 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4396 if enabled x86; then
4397     echo "${yasmexe}                      ${yasm-no}"
4398     echo "MMX enabled               ${mmx-no}"
4399     echo "MMXEXT enabled            ${mmxext-no}"
4400     echo "3DNow! enabled            ${amd3dnow-no}"
4401     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4402     echo "SSE enabled               ${sse-no}"
4403     echo "SSSE3 enabled             ${ssse3-no}"
4404     echo "AVX enabled               ${avx-no}"
4405     echo "FMA4 enabled              ${fma4-no}"
4406     echo "i686 features enabled     ${i686-no}"
4407     echo "CMOV is fast              ${fast_cmov-no}"
4408     echo "EBX available             ${ebx_available-no}"
4409     echo "EBP available             ${ebp_available-no}"
4410 fi
4411 if enabled arm; then
4412     echo "ARMv5TE enabled           ${armv5te-no}"
4413     echo "ARMv6 enabled             ${armv6-no}"
4414     echo "ARMv6T2 enabled           ${armv6t2-no}"
4415     echo "VFP enabled               ${vfp-no}"
4416     echo "NEON enabled              ${neon-no}"
4417     echo "THUMB enabled             ${thumb-no}"
4418 fi
4419 if enabled mips; then
4420     echo "MIPS FPU enabled          ${mipsfpu-no}"
4421     echo "MIPS32R2 enabled          ${mips32r2-no}"
4422     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4423     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4424 fi
4425 if enabled ppc; then
4426     echo "AltiVec enabled           ${altivec-no}"
4427     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4428     echo "dcbzl available           ${dcbzl-no}"
4429 fi
4430 if enabled sparc; then
4431     echo "VIS enabled               ${vis-no}"
4432 fi
4433 echo "debug symbols             ${debug-no}"
4434 echo "strip symbols             ${stripping-no}"
4435 echo "optimize for size         ${small-no}"
4436 echo "optimizations             ${optimizations-no}"
4437 echo "static                    ${static-no}"
4438 echo "shared                    ${shared-no}"
4439 echo "postprocessing support    ${postproc-no}"
4440 echo "new filter support        ${avfilter-no}"
4441 echo "network support           ${network-no}"
4442 echo "threading support         ${thread_type-no}"
4443 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4444 echo "SDL support               ${sdl-no}"
4445 echo "opencl enabled            ${opencl-no}"
4446 echo "libshine enabled          ${libshine-no}"
4447 echo "texi2html enabled         ${texi2html-no}"
4448 echo "perl enabled              ${perl-no}"
4449 echo "pod2man enabled           ${pod2man-no}"
4450 echo "makeinfo enabled          ${makeinfo-no}"
4451 test -n "$random_seed" &&
4452     echo "random seed               ${random_seed}"
4453 echo
4454
4455 echo "External libraries:"
4456 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4457 echo
4458
4459 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4460     echo "Enabled ${type}s:"
4461     eval list=\$$(toupper $type)_LIST
4462     print_enabled '_*' $list | print_3_columns
4463     echo
4464 done
4465
4466 license="LGPL version 2.1 or later"
4467 if enabled nonfree; then
4468     license="nonfree and unredistributable"
4469 elif enabled gplv3; then
4470     license="GPL version 3 or later"
4471 elif enabled lgplv3; then
4472     license="LGPL version 3 or later"
4473 elif enabled gpl; then
4474     license="GPL version 2 or later"
4475 fi
4476
4477 echo "License: $license"
4478
4479 echo "Creating config.mak, config.h, and doc/config.texi..."
4480
4481 test -e Makefile || $ln_s "$source_path/Makefile" .
4482
4483 enabled stripping || strip="echo skipping strip"
4484
4485 config_files="$TMPH config.mak doc/config.texi"
4486
4487 cat > config.mak <<EOF
4488 # Automatically generated by configure - do not modify!
4489 ifndef FFMPEG_CONFIG_MAK
4490 FFMPEG_CONFIG_MAK=1
4491 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4492 prefix=$prefix
4493 LIBDIR=\$(DESTDIR)$libdir
4494 SHLIBDIR=\$(DESTDIR)$shlibdir
4495 INCDIR=\$(DESTDIR)$incdir
4496 BINDIR=\$(DESTDIR)$bindir
4497 DATADIR=\$(DESTDIR)$datadir
4498 MANDIR=\$(DESTDIR)$mandir
4499 SRC_PATH=$source_path
4500 ifndef MAIN_MAKEFILE
4501 SRC_PATH:=\$(SRC_PATH:.%=..%)
4502 endif
4503 CC_IDENT=$cc_ident
4504 ARCH=$arch
4505 CC=$cc
4506 CXX=$cxx
4507 AS=$as
4508 LD=$ld
4509 DEPCC=$dep_cc
4510 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4511 DEPAS=$as
4512 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4513 YASM=$yasmexe
4514 DEPYASM=$yasmexe
4515 AR=$ar
4516 ARFLAGS=$arflags
4517 AR_O=$ar_o
4518 RANLIB=$ranlib
4519 CP=cp -p
4520 LN_S=$ln_s
4521 STRIP=$strip
4522 CPPFLAGS=$CPPFLAGS
4523 CFLAGS=$CFLAGS
4524 CXXFLAGS=$CXXFLAGS
4525 ASFLAGS=$ASFLAGS
4526 AS_C=$AS_C
4527 AS_O=$AS_O
4528 CC_C=$CC_C
4529 CC_E=$CC_E
4530 CC_O=$CC_O
4531 CXX_C=$CXX_C
4532 CXX_O=$CXX_O
4533 LD_O=$LD_O
4534 LD_LIB=$LD_LIB
4535 LD_PATH=$LD_PATH
4536 DLLTOOL=$dlltool
4537 LDFLAGS=$LDFLAGS
4538 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4539 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4540 YASMFLAGS=$YASMFLAGS
4541 BUILDSUF=$build_suffix
4542 PROGSSUF=$progs_suffix
4543 FULLNAME=$FULLNAME
4544 LIBPREF=$LIBPREF
4545 LIBSUF=$LIBSUF
4546 LIBNAME=$LIBNAME
4547 SLIBPREF=$SLIBPREF
4548 SLIBSUF=$SLIBSUF
4549 EXESUF=$EXESUF
4550 EXTRA_VERSION=$extra_version
4551 CCDEP=$CCDEP
4552 CXXDEP=$CXXDEP
4553 CCDEP_FLAGS=$CCDEP_FLAGS
4554 ASDEP=$ASDEP
4555 ASDEP_FLAGS=$ASDEP_FLAGS
4556 CC_DEPFLAGS=$CC_DEPFLAGS
4557 AS_DEPFLAGS=$AS_DEPFLAGS
4558 HOSTCC=$host_cc
4559 HOSTLD=$host_ld
4560 HOSTCFLAGS=$host_cflags
4561 HOSTCPPFLAGS=$host_cppflags
4562 HOSTEXESUF=$HOSTEXESUF
4563 HOSTLDFLAGS=$host_ldflags
4564 HOSTLIBS=$host_libs
4565 DEPHOSTCC=$host_cc
4566 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4567 HOSTCCDEP=$HOSTCCDEP
4568 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4569 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4570 HOSTCC_C=$HOSTCC_C
4571 HOSTCC_O=$HOSTCC_O
4572 HOSTLD_O=$HOSTLD_O
4573 TARGET_EXEC=$target_exec $target_exec_args
4574 TARGET_PATH=$target_path
4575 LIBS-ffplay=$sdl_libs
4576 CFLAGS-ffplay=$sdl_cflags
4577 ZLIB=$($ldflags_filter -lz)
4578 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4579 EXTRALIBS=$extralibs
4580 COMPAT_OBJS=$compat_objs
4581 EXEOBJS=$exeobjs
4582 INSTALL=$install
4583 LIBTARGET=${LIBTARGET}
4584 SLIBNAME=${SLIBNAME}
4585 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4586 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4587 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4588 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4589 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4590 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4591 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4592 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4593 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4594 NOREDZONE_FLAGS=$noredzone_flags
4595 EOF
4596
4597 get_version(){
4598     lcname=lib${1}
4599     name=$(toupper $lcname)
4600     file=$source_path/$lcname/version.h
4601     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4602     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4603     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4604     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4605     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4606 }
4607
4608 map 'get_version $v' $LIBRARY_LIST
4609
4610 cat > $TMPH <<EOF
4611 /* Automatically generated by configure - do not modify! */
4612 #ifndef FFMPEG_CONFIG_H
4613 #define FFMPEG_CONFIG_H
4614 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4615 #define FFMPEG_LICENSE "$(c_escape $license)"
4616 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4617 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4618 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4619 #define av_restrict $_restrict
4620 #define EXTERN_PREFIX "${extern_prefix}"
4621 #define EXTERN_ASM ${extern_prefix}
4622 #define SLIBSUF "$SLIBSUF"
4623 #define HAVE_MMX2 HAVE_MMXEXT
4624 EOF
4625
4626 test -n "$assert_level" &&
4627     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4628
4629 test -n "$malloc_prefix" &&
4630     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4631
4632 if enabled yasm; then
4633     append config_files $TMPASM
4634     printf '' >$TMPASM
4635 fi
4636
4637 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4638
4639
4640 mkdir -p doc
4641 echo "@c auto-generated by configure" > doc/config.texi
4642
4643 print_config ARCH_   "$config_files" $ARCH_LIST
4644 print_config HAVE_   "$config_files" $HAVE_LIST
4645 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4646                                      $CONFIG_EXTRA      \
4647                                      $ALL_COMPONENTS    \
4648
4649 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4650 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4651
4652 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4653 cp_if_changed $TMPH config.h
4654 touch .config
4655
4656 enabled yasm && cp_if_changed $TMPASM config.asm
4657
4658 cat > $TMPH <<EOF
4659 /* Generated by ffconf */
4660 #ifndef AVUTIL_AVCONFIG_H
4661 #define AVUTIL_AVCONFIG_H
4662 EOF
4663
4664 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4665
4666 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4667
4668 cp_if_changed $TMPH libavutil/avconfig.h
4669
4670 if test -n "$WARNINGS"; then
4671     printf "\n$WARNINGS"
4672     enabled fatal_warnings && exit 1
4673 fi
4674
4675 # build pkg-config files
4676
4677 pkgconfig_generate(){
4678     name=$1
4679     shortname=${name#lib}${build_suffix}
4680     comment=$2
4681     version=$3
4682     libs=$4
4683     requires=$5
4684     enabled ${name#lib} || return 0
4685     mkdir -p $name
4686     cat <<EOF > $name/$name${build_suffix}.pc
4687 prefix=$prefix
4688 exec_prefix=\${prefix}
4689 libdir=$libdir
4690 includedir=$incdir
4691
4692 Name: $name
4693 Description: $comment
4694 Version: $version
4695 Requires: $(enabled shared || echo $requires)
4696 Requires.private: $(enabled shared && echo $requires)
4697 Conflicts:
4698 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4699 Libs.private: $(enabled shared && echo $libs)
4700 Cflags: -I\${includedir}
4701 EOF
4702
4703 mkdir -p doc/examples/pc-uninstalled
4704 includedir=${source_path}
4705 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4706     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4707 prefix=
4708 exec_prefix=
4709 libdir=\${pcfiledir}/../../../$name
4710 includedir=${includedir}
4711
4712 Name: $name
4713 Description: $comment
4714 Version: $version
4715 Requires: $requires
4716 Conflicts:
4717 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4718 Cflags: -I\${includedir}
4719 EOF
4720 }
4721
4722 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4723 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4724 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4725 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4726 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4727 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4728 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4729 lavfi_libs=${lavfi_libs%, }
4730
4731 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4732 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4733
4734 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4735 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4736 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4737 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$lavd_libs"
4738 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4739 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4740 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4741 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4742 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4743
4744 fix_ffmpeg_remote(){
4745     git_remote_from=$1
4746     git_remote_to=$2
4747     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4748     if [ "$fixme_remote" != "" ]; then
4749         echolog "
4750 Outdated domain in git config, the official domain for ffmpeg git is since
4751 November 2011, source.ffmpeg.org, both the old and the new point to the same
4752 repository and server. To update it enter the following commands:
4753 "
4754         for remote in $fixme_remote; do
4755             echolog "git remote set-url $remote $git_remote_to"
4756         done
4757     fi
4758 }
4759
4760 if test -f "$source_path/.git/config"; then
4761     remote_from=git.videolan.org
4762     remote_to=source.ffmpeg.org
4763     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4764     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4765 fi