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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-ffmpeg         disable ffmpeg build
 109   --disable-ffplay         disable ffplay build
 110   --disable-ffprobe        disable ffprobe build
 111   --disable-ffserver       disable ffserver build
 112
 113 Documentation options:
 114   --disable-doc            do not build documentation
 115   --disable-htmlpages      do not build HTML documentation pages
 116   --disable-manpages       do not build man documentation pages
 117   --disable-podpages       do not build POD documentation pages
 118   --disable-txtpages       do not build text documentation pages
 119
 120 Component options:
 121   --disable-avdevice       disable libavdevice build
 122   --disable-avcodec        disable libavcodec build
 123   --disable-avformat       disable libavformat build
 124   --disable-avutil         disable libavutil build
 125   --disable-swresample     disable libswresample build
 126   --disable-swscale        disable libswscale build
 127   --disable-postproc       disable libpostproc build
 128   --disable-avfilter       disable libavfilter build
 129   --enable-avresample      enable libavresample build [no]
 130   --disable-pthreads       disable pthreads [auto]
 131   --disable-w32threads     disable Win32 threads [auto]
 132   --disable-os2threads     disable OS/2 threads [auto]
 133   --disable-network        disable network support [no]
 134   --disable-dct            disable DCT code
 135   --disable-dwt            disable DWT code
 136   --disable-error-resilience disable error resilience code
 137   --disable-lsp            disable LSP code
 138   --disable-lzo            disable LZO decoder code
 139   --disable-mdct           disable MDCT code
 140   --disable-rdft           disable RDFT code
 141   --disable-fft            disable FFT code
 142
 143 Hardware accelerators:
 144   --disable-dxva2          disable DXVA2 code [autodetect]
 145   --disable-vaapi          disable VAAPI code [autodetect]
 146   --enable-vda             enable VDA code
 147   --disable-vdpau          disable VDPAU code [autodetect]
 148
 149 Individual component options:
 150   --disable-everything     disable all components listed below
 151   --disable-encoder=NAME   disable encoder NAME
 152   --enable-encoder=NAME    enable encoder NAME
 153   --disable-encoders       disable all encoders
 154   --disable-decoder=NAME   disable decoder NAME
 155   --enable-decoder=NAME    enable decoder NAME
 156   --disable-decoders       disable all decoders
 157   --disable-hwaccel=NAME   disable hwaccel NAME
 158   --enable-hwaccel=NAME    enable hwaccel NAME
 159   --disable-hwaccels       disable all hwaccels
 160   --disable-muxer=NAME     disable muxer NAME
 161   --enable-muxer=NAME      enable muxer NAME
 162   --disable-muxers         disable all muxers
 163   --disable-demuxer=NAME   disable demuxer NAME
 164   --enable-demuxer=NAME    enable demuxer NAME
 165   --disable-demuxers       disable all demuxers
 166   --enable-parser=NAME     enable parser NAME
 167   --disable-parser=NAME    disable parser NAME
 168   --disable-parsers        disable all parsers
 169   --enable-bsf=NAME        enable bitstream filter NAME
 170   --disable-bsf=NAME       disable bitstream filter NAME
 171   --disable-bsfs           disable all bitstream filters
 172   --enable-protocol=NAME   enable protocol NAME
 173   --disable-protocol=NAME  disable protocol NAME
 174   --disable-protocols      disable all protocols
 175   --enable-indev=NAME      enable input device NAME
 176   --disable-indev=NAME     disable input device NAME
 177   --disable-indevs         disable input devices
 178   --enable-outdev=NAME     enable output device NAME
 179   --disable-outdev=NAME    disable output device NAME
 180   --disable-outdevs        disable output devices
 181   --disable-devices        disable all devices
 182   --enable-filter=NAME     enable filter NAME
 183   --disable-filter=NAME    disable filter NAME
 184   --disable-filters        disable all filters
 185
 186 External library support:
 187   --enable-avisynth        enable reading of AVISynth script files [no]
 188   --disable-bzlib          disable bzlib [autodetect]
 189   --enable-fontconfig      enable fontconfig
 190   --enable-frei0r          enable frei0r video filtering
 191   --enable-gnutls          enable gnutls [no]
 192   --disable-iconv          disable iconv [autodetect]
 193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 194   --enable-libass          enable libass subtitles rendering [no]
 195   --enable-libbluray       enable BluRay reading using libbluray [no]
 196   --enable-libcaca         enable textual display using libcaca
 197   --enable-libcelt         enable CELT decoding via libcelt [no]
 198   --enable-libcdio         enable audio CD grabbing with libcdio
 199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 200                            and libraw1394 [no]
 201   --enable-libfaac         enable AAC encoding via libfaac [no]
 202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 204   --enable-libfreetype     enable libfreetype [no]
 205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 208   --enable-libmodplug      enable ModPlug via libmodplug [no]
 209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 210   --enable-libnut          enable NUT (de)muxing via libnut,
 211                            native (de)muxer exists [no]
 212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 214   --enable-libopencv       enable video filtering via libopencv [no]
 215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 216   --enable-libopus         enable Opus decoding via libopus [no]
 217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 218   --enable-libquvi         enable quvi input via libquvi [no]
 219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
 222   --enable-libsoxr         enable Include libsoxr resampling [no]
 223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 225   --enable-libtheora       enable Theora encoding via libtheora [no]
 226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 229   --enable-libvidstab      enable video stabilization using vid.stab [no]
 230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 233                            native implementation exists [no]
 234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 235   --enable-libx264         enable H.264 encoding via x264 [no]
 236   --enable-libxavs         enable AVS encoding via xavs [no]
 237   --enable-libxvid         enable Xvid encoding via xvidcore,
 238                            native MPEG-4/Xvid encoder exists [no]
 239   --enable-libzmq          enable message passing via libzmq [no]
 240   --enable-openal          enable OpenAL 1.1 capture support [no]
 241   --enable-opencl          enable OpenCL code
 242   --enable-openssl         enable openssl [no]
 243   --enable-x11grab         enable X11 grabbing [no]
 244   --disable-zlib           disable zlib [autodetect]
 245
 246 Advanced options (experts only):
 247   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 248   --enable-cross-compile   assume a cross-compiler is used
 249   --sysroot=PATH           root of cross-build tree
 250   --sysinclude=PATH        location of cross-build system headers
 251   --target-os=OS           compiler targets OS [$target_os]
 252   --target-exec=CMD        command to run executables on target
 253   --target-path=DIR        path to view of build directory on target
 254   --toolchain=NAME         set tool defaults according to NAME
 255   --nm=NM                  use nm tool NM [$nm_default]
 256   --ar=AR                  use archive tool AR [$ar_default]
 257   --as=AS                  use assembler AS [$as_default]
 258   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 259   --cc=CC                  use C compiler CC [$cc_default]
 260   --cxx=CXX                use C compiler CXX [$cxx_default]
 261   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 262   --ld=LD                  use linker LD [$ld_default]
 263   --host-cc=HOSTCC         use host C compiler HOSTCC
 264   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 265   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 266   --host-ld=HOSTLD         use host linker HOSTLD
 267   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 268   --host-libs=HLIBS        use libs HLIBS when linking for host
 269   --host-os=OS             compiler host OS [$target_os]
 270   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 271   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 272   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 273   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 274   --extra-version=STRING   version string suffix []
 275   --optflags=OPTFLAGS      override optimization-related compiler flags
 276   --build-suffix=SUFFIX    library name suffix []
 277   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 278   --progs-suffix=SUFFIX    program name suffix []
 279   --arch=ARCH              select architecture [$arch]
 280   --cpu=CPU                select the minimum required CPU (affects
 281                            instruction selection, may crash on older CPUs)
 282   --enable-pic             build position-independent code
 283   --enable-sram            allow use of on-chip SRAM
 284   --enable-thumb           compile for Thumb instruction set
 285   --disable-symver         disable symbol versioning
 286   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 287   --disable-safe-bitstream-reader
 288                            disable buffer boundary checking in bitreaders
 289                            (faster, but may crash)
 290   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 291   --enable-lto             use link-time optimization
 292
 293 Optimization options (experts only):
 294   --disable-asm            disable all assembler optimizations
 295   --disable-altivec        disable AltiVec optimizations
 296   --disable-amd3dnow       disable 3DNow! optimizations
 297   --disable-amd3dnowext    disable 3DNow! extended optimizations
 298   --disable-mmx            disable MMX optimizations
 299   --disable-mmxext         disable MMXEXT optimizations
 300   --disable-sse            disable SSE optimizations
 301   --disable-sse2           disable SSE2 optimizations
 302   --disable-sse3           disable SSE3 optimizations
 303   --disable-ssse3          disable SSSE3 optimizations
 304   --disable-sse4           disable SSE4 optimizations
 305   --disable-sse42          disable SSE4.2 optimizations
 306   --disable-avx            disable AVX optimizations
 307   --disable-fma4           disable FMA4 optimizations
 308   --disable-armv5te        disable armv5te optimizations
 309   --disable-armv6          disable armv6 optimizations
 310   --disable-armv6t2        disable armv6t2 optimizations
 311   --disable-vfp            disable VFP optimizations
 312   --disable-neon           disable NEON optimizations
 313   --disable-vis            disable VIS optimizations
 314   --disable-inline-asm     disable use of inline assembler
 315   --disable-yasm           disable use of yasm assembler
 316   --disable-mips32r2       disable MIPS32R2 optimizations
 317   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 318   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 319   --disable-mipsfpu        disable floating point MIPS optimizations
 320   --disable-fast-unaligned consider unaligned accesses slow
 321
 322 Developer options (useful when working on FFmpeg itself):
 323   --disable-debug          disable debugging symbols
 324   --enable-debug=LEVEL     set the debug level [$debuglevel]
 325   --disable-optimizations  disable compiler optimizations
 326   --enable-extra-warnings  enable more compiler warnings
 327   --disable-stripping      disable stripping of executables and shared libraries
 328   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 329                            2 causes a slowdown at runtime.
 330   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 331   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 332                            leaks and errors, using the specified valgrind binary.
 333                            Cannot be combined with --target-exec
 334   --enable-ftrapv          Trap arithmetic overflows
 335   --samples=PATH           location of test samples for FATE, if not set use
 336                            \$FATE_SAMPLES at make invocation time.
 337   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 338                            should be used only for debugging purposes)
 339   --enable-random          randomly enable/disable components
 340   --disable-random
 341   --enable-random=LIST     randomly enable/disable specific components or
 342   --disable-random=LIST    component groups. LIST is a comma-separated list
 343                            of NAME[:PROB] entries where NAME is a component
 344                            (group) and PROB the probability associated with
 345                            NAME (default 0.5).
 346   --random-seed=VALUE      seed value for --enable/disable-random
 347
 348 NOTE: Object files are built at the place where configure is launched.
 349 EOF
 350   exit 0
 351 }
 352
 353 quotes='""'
 354
 355 log(){
 356     echo "$@" >> $logfile
 357 }
 358
 359 log_file(){
 360     log BEGIN $1
 361     pr -n -t $1 >> $logfile
 362     log END $1
 363 }
 364
 365 echolog(){
 366     log "$@"
 367     echo "$@"
 368 }
 369
 370 warn(){
 371     log "WARNING: $*"
 372     WARNINGS="${WARNINGS}WARNING: $*\n"
 373 }
 374
 375 die(){
 376     echolog "$@"
 377     cat <<EOF
 378
 379 If you think configure made a mistake, make sure you are using the latest
 380 version from Git.  If the latest version fails, report the problem to the
 381 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 382 EOF
 383     if disabled logging; then
 384         cat <<EOF
 385 Rerun configure with logging enabled (do not use --disable-logging), and
 386 include the log this produces with your report.
 387 EOF
 388     else
 389         cat <<EOF
 390 Include the log file "$logfile" produced by configure as this will help
 391 solving the problem.
 392 EOF
 393     fi
 394     exit 1
 395 }
 396
 397 # Avoid locale weirdness, besides we really just want to translate ASCII.
 398 toupper(){
 399     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 400 }
 401
 402 tolower(){
 403     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 404 }
 405
 406 c_escape(){
 407     echo "$*" | sed 's/["\\]/\\\0/g'
 408 }
 409
 410 sh_quote(){
 411     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 412     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 413     echo "$v"
 414 }
 415
 416 cleanws(){
 417     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 418 }
 419
 420 filter(){
 421     pat=$1
 422     shift
 423     for v; do
 424         eval "case $v in $pat) echo $v ;; esac"
 425     done
 426 }
 427
 428 filter_out(){
 429     pat=$1
 430     shift
 431     for v; do
 432         eval "case $v in $pat) ;; *) echo $v ;; esac"
 433     done
 434 }
 435
 436 map(){
 437     m=$1
 438     shift
 439     for v; do eval $m; done
 440 }
 441
 442 add_suffix(){
 443     suffix=$1
 444     shift
 445     for v; do echo ${v}${suffix}; done
 446 }
 447
 448 set_all(){
 449     value=$1
 450     shift
 451     for var in $*; do
 452         eval $var=$value
 453     done
 454 }
 455
 456 set_weak(){
 457     value=$1
 458     shift
 459     for var; do
 460         eval : \${$var:=$value}
 461     done
 462 }
 463
 464 sanitize_var_name(){
 465     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 466 }
 467
 468 set_safe(){
 469     var=$1
 470     shift
 471     eval $(sanitize_var_name "$var")='$*'
 472 }
 473
 474 get_safe(){
 475     eval echo \$$(sanitize_var_name "$1")
 476 }
 477
 478 pushvar(){
 479     for pvar in $*; do
 480         eval level=\${${pvar}_level:=0}
 481         eval ${pvar}_${level}="\$$pvar"
 482         eval ${pvar}_level=$(($level+1))
 483     done
 484 }
 485
 486 popvar(){
 487     for pvar in $*; do
 488         eval level=\${${pvar}_level:-0}
 489         test $level = 0 && continue
 490         eval level=$(($level-1))
 491         eval $pvar="\${${pvar}_${level}}"
 492         eval ${pvar}_level=$level
 493         eval unset ${pvar}_${level}
 494     done
 495 }
 496
 497 enable(){
 498     set_all yes $*
 499 }
 500
 501 disable(){
 502     set_all no $*
 503 }
 504
 505 enable_weak(){
 506     set_weak yes $*
 507 }
 508
 509 disable_weak(){
 510     set_weak no $*
 511 }
 512
 513 enable_safe(){
 514     for var; do
 515         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 516     done
 517 }
 518
 519 disable_safe(){
 520     for var; do
 521         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 522     done
 523 }
 524
 525 do_enable_deep(){
 526     for var; do
 527         enabled $var && continue
 528         eval sel="\$${var}_select"
 529         eval sgs="\$${var}_suggest"
 530         pushvar var sgs
 531         enable_deep $sel
 532         popvar sgs
 533         enable_deep_weak $sgs
 534         popvar var
 535     done
 536 }
 537
 538 enable_deep(){
 539     do_enable_deep $*
 540     enable $*
 541 }
 542
 543 enable_deep_weak(){
 544     for var; do
 545         disabled $var && continue
 546         pushvar var
 547         do_enable_deep $var
 548         popvar var
 549         enable_weak $var
 550     done
 551 }
 552
 553 enabled(){
 554     test "${1#!}" = "$1" && op== || op=!=
 555     eval test "x\$${1#!}" $op "xyes"
 556 }
 557
 558 disabled(){
 559     test "${1#!}" = "$1" && op== || op=!=
 560     eval test "x\$${1#!}" $op "xno"
 561 }
 562
 563 enabled_all(){
 564     for opt; do
 565         enabled $opt || return 1
 566     done
 567 }
 568
 569 disabled_all(){
 570     for opt; do
 571         disabled $opt || return 1
 572     done
 573 }
 574
 575 enabled_any(){
 576     for opt; do
 577         enabled $opt && return 0
 578     done
 579 }
 580
 581 disabled_any(){
 582     for opt; do
 583         disabled $opt && return 0
 584     done
 585     return 1
 586 }
 587
 588 set_default(){
 589     for opt; do
 590         eval : \${$opt:=\$${opt}_default}
 591     done
 592 }
 593
 594 is_in(){
 595     value=$1
 596     shift
 597     for var in $*; do
 598         [ $var = $value ] && return 0
 599     done
 600     return 1
 601 }
 602
 603 do_check_deps(){
 604     for cfg; do
 605         cfg="${cfg#!}"
 606         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 607         disabled ${cfg}_checking && continue
 608         enable ${cfg}_checking
 609         append allopts $cfg
 610
 611         eval dep_all="\$${cfg}_deps"
 612         eval dep_any="\$${cfg}_deps_any"
 613         eval dep_sel="\$${cfg}_select"
 614         eval dep_sgs="\$${cfg}_suggest"
 615         eval dep_ifa="\$${cfg}_if"
 616         eval dep_ifn="\$${cfg}_if_any"
 617
 618         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 619         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 620         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 621
 622         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 623         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 624         enabled_all  $dep_all || disable $cfg
 625         enabled_any  $dep_any || disable $cfg
 626         disabled_any $dep_sel && disable $cfg
 627
 628         if enabled $cfg; then
 629             enable_deep $dep_sel
 630             enable_deep_weak $dep_sgs
 631         fi
 632
 633         disable ${cfg}_checking
 634     done
 635 }
 636
 637 check_deps(){
 638     unset allopts
 639
 640     do_check_deps "$@"
 641
 642     for cfg in $allopts; do
 643         enabled $cfg || continue
 644         eval dep_extralibs="\$${cfg}_extralibs"
 645         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 646     done
 647 }
 648
 649 print_config(){
 650     pfx=$1
 651     files=$2
 652     shift 2
 653     map 'eval echo "$v \${$v:-no}"' "$@" |
 654     awk "BEGIN { split(\"$files\", files) }
 655         {
 656             c = \"$pfx\" toupper(\$1);
 657             v = \$2;
 658             sub(/yes/, 1, v);
 659             sub(/no/,  0, v);
 660             for (f in files) {
 661                 file = files[f];
 662                 if (file ~ /\\.h\$/) {
 663                     printf(\"#define %s %d\\n\", c, v) >>file;
 664                 } else if (file ~ /\\.asm\$/) {
 665                     printf(\"%%define %s %d\\n\", c, v) >>file;
 666                 } else if (file ~ /\\.mak\$/) {
 667                     n = -v ? \"\" : \"!\";
 668                     printf(\"%s%s=yes\\n\", n, c) >>file;
 669                 } else if (file ~ /\\.texi\$/) {
 670                     pre = -v ? \"\" : \"@c \";
 671                     yesno = \$2;
 672                     c2 = tolower(c);
 673                     gsub(/_/, \"-\", c2);
 674                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
 675                 }
 676             }
 677         }"
 678 }
 679
 680 print_enabled(){
 681     suf=$1
 682     shift
 683     for v; do
 684         enabled $v && printf "%s\n" ${v%$suf};
 685     done
 686 }
 687
 688 append(){
 689     var=$1
 690     shift
 691     eval "$var=\"\$$var $*\""
 692 }
 693
 694 prepend(){
 695     var=$1
 696     shift
 697     eval "$var=\"$* \$$var\""
 698 }
 699
 700 add_cppflags(){
 701     append CPPFLAGS "$@"
 702 }
 703
 704 add_cflags(){
 705     append CFLAGS $($cflags_filter "$@")
 706 }
 707
 708 add_cxxflags(){
 709     append CXXFLAGS $($cflags_filter "$@")
 710 }
 711
 712 add_asflags(){
 713     append ASFLAGS $($asflags_filter "$@")
 714 }
 715
 716 add_ldflags(){
 717     append LDFLAGS $($ldflags_filter "$@")
 718 }
 719
 720 add_extralibs(){
 721     prepend extralibs $($ldflags_filter "$@")
 722 }
 723
 724 add_host_cppflags(){
 725     append host_cppflags "$@"
 726 }
 727
 728 add_host_cflags(){
 729     append host_cflags $($host_cflags_filter "$@")
 730 }
 731
 732 add_host_ldflags(){
 733     append host_ldflags $($host_ldflags_filter "$@")
 734 }
 735
 736 add_compat(){
 737     append compat_objs $1
 738     shift
 739     map 'add_cppflags -D$v' "$@"
 740 }
 741
 742 check_cmd(){
 743     log "$@"
 744     "$@" >> $logfile 2>&1
 745 }
 746
 747 cc_o(){
 748     eval printf '%s\\n' $CC_O
 749 }
 750
 751 cc_e(){
 752     eval printf '%s\\n' $CC_E
 753 }
 754
 755 check_cc(){
 756     log check_cc "$@"
 757     cat > $TMPC
 758     log_file $TMPC
 759     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 760 }
 761
 762 check_cxx(){
 763     log check_cxx "$@"
 764     cat > $TMPCPP
 765     log_file $TMPCPP
 766     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 767 }
 768
 769 check_cpp(){
 770     log check_cpp "$@"
 771     cat > $TMPC
 772     log_file $TMPC
 773     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 774 }
 775
 776 as_o(){
 777     eval printf '%s\\n' $AS_O
 778 }
 779
 780 check_as(){
 781     log check_as "$@"
 782     cat > $TMPS
 783     log_file $TMPS
 784     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 785 }
 786
 787 check_inline_asm(){
 788     log check_inline_asm "$@"
 789     name="$1"
 790     code="$2"
 791     shift 2
 792     disable $name
 793     check_cc "$@" <<EOF && enable $name
 794 void foo(void){ __asm__ volatile($code); }
 795 EOF
 796 }
 797
 798 check_insn(){
 799     log check_insn "$@"
 800     check_inline_asm ${1}_inline "\"$2\""
 801     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 802 }
 803
 804 check_yasm(){
 805     log check_yasm "$@"
 806     echo "$1" > $TMPS
 807     log_file $TMPS
 808     shift 1
 809     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 810 }
 811
 812 ld_o(){
 813     eval printf '%s\\n' $LD_O
 814 }
 815
 816 check_ld(){
 817     log check_ld "$@"
 818     type=$1
 819     shift 1
 820     flags=$(filter_out '-l*|*.so' $@)
 821     libs=$(filter '-l*|*.so' $@)
 822     check_$type $($cflags_filter $flags) || return
 823     flags=$($ldflags_filter $flags)
 824     libs=$($ldflags_filter $libs)
 825     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 826 }
 827
 828 check_code(){
 829     log check_code "$@"
 830     check=$1
 831     headers=$2
 832     code=$3
 833     shift 3
 834     {
 835         for hdr in $headers; do
 836             echo "#include <$hdr>"
 837         done
 838         echo "int main(void) { $code; return 0; }"
 839     } | check_$check "$@"
 840 }
 841
 842 check_cppflags(){
 843     log check_cppflags "$@"
 844     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 845 int x;
 846 EOF
 847 }
 848
 849 check_cflags(){
 850     log check_cflags "$@"
 851     set -- $($cflags_filter "$@")
 852     check_cc "$@" <<EOF && append CFLAGS "$@"
 853 int x;
 854 EOF
 855 }
 856
 857 check_cxxflags(){
 858     log check_cxxflags "$@"
 859     set -- $($cflags_filter "$@")
 860     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 861 int x;
 862 EOF
 863 }
 864
 865 test_ldflags(){
 866     log test_ldflags "$@"
 867     check_ld "cc" "$@" <<EOF
 868 int main(void){ return 0; }
 869 EOF
 870 }
 871
 872 check_ldflags(){
 873     log check_ldflags "$@"
 874     test_ldflags "$@" && add_ldflags "$@"
 875 }
 876
 877 check_header(){
 878     log check_header "$@"
 879     header=$1
 880     shift
 881     disable_safe $header
 882     check_cpp "$@" <<EOF && enable_safe $header
 883 #include <$header>
 884 int x;
 885 EOF
 886 }
 887
 888 check_func(){
 889     log check_func "$@"
 890     func=$1
 891     shift
 892     disable $func
 893     check_ld "cc" "$@" <<EOF && enable $func
 894 extern int $func();
 895 int main(void){ $func(); }
 896 EOF
 897 }
 898
 899 check_mathfunc(){
 900     log check_mathfunc "$@"
 901     func=$1
 902     narg=$2
 903     shift 2
 904     test $narg = 2 && args="f, g" || args="f"
 905     disable $func
 906     check_ld "cc" "$@" <<EOF && enable $func
 907 #include <math.h>
 908 float foo(float f, float g) { return $func($args); }
 909 int main(void){ return (int) foo; }
 910 EOF
 911 }
 912
 913 check_func_headers(){
 914     log check_func_headers "$@"
 915     headers=$1
 916     funcs=$2
 917     shift 2
 918     {
 919         for hdr in $headers; do
 920             echo "#include <$hdr>"
 921         done
 922         for func in $funcs; do
 923             echo "long check_$func(void) { return (long) $func; }"
 924         done
 925         echo "int main(void) { return 0; }"
 926     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 927 }
 928
 929 check_class_headers_cpp(){
 930     log check_class_headers_cpp "$@"
 931     headers=$1
 932     classes=$2
 933     shift 2
 934     {
 935         for hdr in $headers; do
 936             echo "#include <$hdr>"
 937         done
 938         echo "int main(void) { "
 939         i=1
 940         for class in $classes; do
 941             echo "$class obj$i;"
 942             i=$(expr $i + 1)
 943         done
 944         echo "return 0; }"
 945     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 946 }
 947
 948 check_cpp_condition(){
 949     log check_cpp_condition "$@"
 950     header=$1
 951     condition=$2
 952     shift 2
 953     check_cpp "$@" <<EOF
 954 #include <$header>
 955 #if !($condition)
 956 #error "unsatisfied condition: $condition"
 957 #endif
 958 EOF
 959 }
 960
 961 check_lib(){
 962     log check_lib "$@"
 963     header="$1"
 964     func="$2"
 965     shift 2
 966     check_header $header && check_func $func "$@" && add_extralibs "$@"
 967 }
 968
 969 check_lib2(){
 970     log check_lib2 "$@"
 971     headers="$1"
 972     funcs="$2"
 973     shift 2
 974     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 975 }
 976
 977 check_lib_cpp(){
 978     log check_lib_cpp "$@"
 979     headers="$1"
 980     classes="$2"
 981     shift 2
 982     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 983 }
 984
 985 check_pkg_config(){
 986     log check_pkg_config "$@"
 987     pkg="$1"
 988     headers="$2"
 989     funcs="$3"
 990     shift 3
 991     $pkg_config --exists $pkg 2>/dev/null || return
 992     pkg_cflags=$($pkg_config --cflags $pkg)
 993     pkg_libs=$($pkg_config --libs $pkg)
 994     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 995         set_safe ${pkg}_cflags $pkg_cflags   &&
 996         set_safe ${pkg}_libs   $pkg_libs
 997 }
 998
 999 check_exec(){
1000     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1001 }
1002
1003 check_exec_crash(){
1004     code=$(cat)
1005
1006     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1007     # are safe but may not be available everywhere.  Thus we use
1008     # raise(SIGTERM) instead.  The check is run in a subshell so we
1009     # can redirect the "Terminated" message from the shell.  SIGBUS
1010     # is not defined by standard C so it is used conditionally.
1011
1012     (check_exec "$@") >> $logfile 2>&1 <<EOF
1013 #include <signal.h>
1014 static void sighandler(int sig){
1015     raise(SIGTERM);
1016 }
1017 int foo(void){
1018     $code
1019 }
1020 int (*func_ptr)(void) = foo;
1021 int main(void){
1022     signal(SIGILL, sighandler);
1023     signal(SIGFPE, sighandler);
1024     signal(SIGSEGV, sighandler);
1025 #ifdef SIGBUS
1026     signal(SIGBUS, sighandler);
1027 #endif
1028     return func_ptr();
1029 }
1030 EOF
1031 }
1032
1033 check_type(){
1034     log check_type "$@"
1035     headers=$1
1036     type=$2
1037     shift 2
1038     disable_safe "$type"
1039     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1040 }
1041
1042 check_struct(){
1043     log check_struct "$@"
1044     headers=$1
1045     struct=$2
1046     member=$3
1047     shift 3
1048     disable_safe "${struct}_${member}"
1049     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1050         enable_safe "${struct}_${member}"
1051 }
1052
1053 check_builtin(){
1054     log check_builtin "$@"
1055     name=$1
1056     headers=$2
1057     builtin=$3
1058     shift 3
1059     disable "$name"
1060     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1061 }
1062
1063 require(){
1064     name="$1"
1065     header="$2"
1066     func="$3"
1067     shift 3
1068     check_lib $header $func "$@" || die "ERROR: $name not found"
1069 }
1070
1071 require2(){
1072     name="$1"
1073     headers="$2"
1074     func="$3"
1075     shift 3
1076     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1077 }
1078
1079 require_cpp(){
1080     name="$1"
1081     headers="$2"
1082     classes="$3"
1083     shift 3
1084     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1085 }
1086
1087 require_pkg_config(){
1088     pkg="$1"
1089     check_pkg_config "$@" || die "ERROR: $pkg not found"
1090     add_cflags    $(get_safe ${pkg}_cflags)
1091     add_extralibs $(get_safe ${pkg}_libs)
1092 }
1093
1094 hostcc_o(){
1095     eval printf '%s\\n' $HOSTCC_O
1096 }
1097
1098 check_host_cc(){
1099     log check_host_cc "$@"
1100     cat > $TMPC
1101     log_file $TMPC
1102     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1103 }
1104
1105 check_host_cppflags(){
1106     log check_host_cppflags "$@"
1107     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1108 int x;
1109 EOF
1110 }
1111
1112 check_host_cflags(){
1113     log check_host_cflags "$@"
1114     set -- $($host_cflags_filter "$@")
1115     check_host_cc "$@" <<EOF && append host_cflags "$@"
1116 int x;
1117 EOF
1118 }
1119
1120 apply(){
1121     file=$1
1122     shift
1123     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1124 }
1125
1126 cp_if_changed(){
1127     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1128     mkdir -p "$(dirname $2)"
1129     $cp_f "$1" "$2"
1130 }
1131
1132 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1133 # system-dependent things.
1134
1135 COMPONENT_LIST="
1136     bsfs
1137     decoders
1138     demuxers
1139     encoders
1140     filters
1141     hwaccels
1142     indevs
1143     muxers
1144     outdevs
1145     parsers
1146     protocols
1147 "
1148
1149 EXTERNAL_LIBRARY_LIST="
1150     avisynth
1151     bzlib
1152     crystalhd
1153     fontconfig
1154     frei0r
1155     gnutls
1156     iconv
1157     libaacplus
1158     libass
1159     libbluray
1160     libcaca
1161     libcdio
1162     libcelt
1163     libdc1394
1164     libfaac
1165     libfdk_aac
1166     libflite
1167     libfreetype
1168     libgsm
1169     libiec61883
1170     libilbc
1171     libmodplug
1172     libmp3lame
1173     libnut
1174     libopencore_amrnb
1175     libopencore_amrwb
1176     libopencv
1177     libopenjpeg
1178     libopus
1179     libpulse
1180     libquvi
1181     librtmp
1182     libschroedinger
1183     libshine
1184     libsoxr
1185     libspeex
1186     libstagefright_h264
1187     libtheora
1188     libtwolame
1189     libutvideo
1190     libv4l2
1191     libvidstab
1192     libvo_aacenc
1193     libvo_amrwbenc
1194     libvorbis
1195     libvpx
1196     libx264
1197     libxavs
1198     libxvid
1199     libzmq
1200     openal
1201     opencl
1202     openssl
1203     x11grab
1204     zlib
1205 "
1206
1207 DOCUMENT_LIST="
1208     doc
1209     htmlpages
1210     manpages
1211     podpages
1212     txtpages
1213 "
1214
1215 HWACCEL_LIST="
1216     dxva2
1217     vaapi
1218     vda
1219     vdpau
1220 "
1221
1222 LIBRARY_LIST="
1223     avcodec
1224     avdevice
1225     avfilter
1226     avformat
1227     avresample
1228     avutil
1229     postproc
1230     swresample
1231     swscale
1232 "
1233
1234 PROGRAM_LIST="
1235     ffplay
1236     ffprobe
1237     ffserver
1238     ffmpeg
1239 "
1240
1241 CONFIG_LIST="
1242     $COMPONENT_LIST
1243     $DOCUMENT_LIST
1244     $EXTERNAL_LIBRARY_LIST
1245     $HWACCEL_LIST
1246     $LIBRARY_LIST
1247     $PROGRAM_LIST
1248     dct
1249     dwt
1250     error_resilience
1251     fast_unaligned
1252     fft
1253     ftrapv
1254     gpl
1255     gray
1256     hardcoded_tables
1257     incompatible_fork_abi
1258     lsp
1259     lzo
1260     mdct
1261     memalign_hack
1262     memory_poisoning
1263     network
1264     nonfree
1265     pic
1266     rdft
1267     runtime_cpudetect
1268     safe_bitstream_reader
1269     shared
1270     small
1271     sram
1272     static
1273     swscale_alpha
1274     thumb
1275     version3
1276     xmm_clobber_test
1277 "
1278
1279 THREADS_LIST='
1280     pthreads
1281     w32threads
1282     os2threads
1283 '
1284
1285 ATOMICS_LIST='
1286     atomics_gcc
1287     atomics_suncc
1288     atomics_win32
1289 '
1290
1291 ARCH_LIST='
1292     aarch64
1293     alpha
1294     arm
1295     avr32
1296     avr32_ap
1297     avr32_uc
1298     bfin
1299     ia64
1300     m68k
1301     mips
1302     mips64
1303     parisc
1304     ppc
1305     ppc64
1306     s390
1307     sh4
1308     sparc
1309     sparc64
1310     tilegx
1311     tilepro
1312     tomi
1313     x86
1314     x86_32
1315     x86_64
1316 '
1317
1318 ARCH_EXT_LIST_ARM='
1319     armv5te
1320     armv6
1321     armv6t2
1322     neon
1323     vfp
1324     vfpv3
1325 '
1326
1327 ARCH_EXT_LIST_X86='
1328     amd3dnow
1329     amd3dnowext
1330     avx
1331     fma4
1332     mmx
1333     mmxext
1334     sse
1335     sse2
1336     sse3
1337     sse4
1338     sse42
1339     ssse3
1340 '
1341
1342 ARCH_EXT_LIST="
1343     $ARCH_EXT_LIST_ARM
1344     $ARCH_EXT_LIST_X86
1345     altivec
1346     ppc4xx
1347     vis
1348     mipsfpu
1349     mips32r2
1350     mipsdspr1
1351     mipsdspr2
1352 "
1353
1354 HAVE_LIST_CMDLINE='
1355     inline_asm
1356     symver
1357     yasm
1358 '
1359
1360 HAVE_LIST_PUB='
1361     bigendian
1362     fast_unaligned
1363     incompatible_fork_abi
1364 '
1365
1366 MATH_FUNCS="
1367     atanf
1368     atan2f
1369     cbrt
1370     cbrtf
1371     cosf
1372     exp2
1373     exp2f
1374     expf
1375     isinf
1376     isnan
1377     ldexpf
1378     llrint
1379     llrintf
1380     log2
1381     log2f
1382     log10f
1383     lrint
1384     lrintf
1385     powf
1386     rint
1387     round
1388     roundf
1389     sinf
1390     trunc
1391     truncf
1392 "
1393
1394 HAVE_LIST="
1395     $ARCH_EXT_LIST
1396     $(add_suffix _external $ARCH_EXT_LIST)
1397     $(add_suffix _inline   $ARCH_EXT_LIST)
1398     $HAVE_LIST_CMDLINE
1399     $HAVE_LIST_PUB
1400     $THREADS_LIST
1401     $ATOMICS_LIST
1402     $MATH_FUNCS
1403     access
1404     aligned_malloc
1405     aligned_stack
1406     alsa_asoundlib_h
1407     altivec_h
1408     arpa_inet_h
1409     asm_mod_q
1410     asm_mod_y
1411     asm_types_h
1412     atomic_cas_ptr
1413     atomics_native
1414     attribute_may_alias
1415     attribute_packed
1416     cdio_paranoia_h
1417     cdio_paranoia_paranoia_h
1418     CL_cl_h
1419     clock_gettime
1420     closesocket
1421     CommandLineToArgvW
1422     cpunop
1423     CryptGenRandom
1424     dcbzl
1425     dev_bktr_ioctl_bt848_h
1426     dev_bktr_ioctl_meteor_h
1427     dev_ic_bt8xx_h
1428     dev_video_bktr_ioctl_bt848_h
1429     dev_video_meteor_ioctl_meteor_h
1430     direct_h
1431     dlfcn_h
1432     dlopen
1433     dos_paths
1434     dxva_h
1435     ebp_available
1436     ebx_available
1437     fast_64bit
1438     fast_clz
1439     fast_cmov
1440     fcntl
1441     fork
1442     getaddrinfo
1443     gethrtime
1444     getopt
1445     GetProcessAffinityMask
1446     GetProcessMemoryInfo
1447     GetProcessTimes
1448     GetSystemTimeAsFileTime
1449     getrusage
1450     getservbyport
1451     gettimeofday
1452     glob
1453     gnu_as
1454     gsm_h
1455     i686
1456     ibm_asm
1457     inet_aton
1458     io_h
1459     isatty
1460     jack_port_get_latency_range
1461     kbhit
1462     ldbrx
1463     libdc1394_1
1464     libdc1394_2
1465     local_aligned_16
1466     local_aligned_8
1467     localtime_r
1468     loongson
1469     lzo1x_999_compress
1470     machine_ioctl_bt848_h
1471     machine_ioctl_meteor_h
1472     machine_rw_barrier
1473     makeinfo
1474     malloc_h
1475     MapViewOfFile
1476     memalign
1477     MemoryBarrier
1478     mkstemp
1479     mm_empty
1480     mmap
1481     mprotect
1482     msvcrt
1483     nanosleep
1484     openjpeg_1_5_openjpeg_h
1485     PeekNamedPipe
1486     perl
1487     pod2man
1488     poll_h
1489     posix_memalign
1490     pthread_cancel
1491     rdtsc
1492     rsync_contimeout
1493     sched_getaffinity
1494     sdl
1495     SetConsoleTextAttribute
1496     setmode
1497     setrlimit
1498     Sleep
1499     sndio_h
1500     socklen_t
1501     soundcard_h
1502     strerror_r
1503     struct_addrinfo
1504     struct_group_source_req
1505     struct_ip_mreq_source
1506     struct_ipv6_mreq
1507     struct_pollfd
1508     struct_rusage_ru_maxrss
1509     struct_sctp_event_subscribe
1510     struct_sockaddr_in6
1511     struct_sockaddr_sa_len
1512     struct_sockaddr_storage
1513     struct_v4l2_frmivalenum_discrete
1514     symver_asm_label
1515     symver_gnu_asm
1516     sync_val_compare_and_swap
1517     sysconf
1518     sysctl
1519     sys_mman_h
1520     sys_param_h
1521     sys_resource_h
1522     sys_select_h
1523     sys_soundcard_h
1524     sys_time_h
1525     sys_videoio_h
1526     termios_h
1527     texi2html
1528     threads
1529     unistd_h
1530     usleep
1531     vfp_args
1532     VirtualAlloc
1533     windows_h
1534     winsock2_h
1535     xform_asm
1536     xmm_clobbers
1537 "
1538
1539 # options emitted with CONFIG_ prefix but not available on the command line
1540 CONFIG_EXTRA="
1541     aandcttables
1542     ac3dsp
1543     audio_frame_queue
1544     dsputil
1545     frame_thread_encoder
1546     gcrypt
1547     golomb
1548     gplv3
1549     h264chroma
1550     h264dsp
1551     h264pred
1552     h264qpel
1553     hpeldsp
1554     huffman
1555     lgplv3
1556     lpc
1557     mpegaudio
1558     mpegaudiodsp
1559     mpegvideo
1560     mpegvideoenc
1561     nettle
1562     rangecoder
1563     rtpdec
1564     rtpenc_chain
1565     sinewin
1566     videodsp
1567     vp3dsp
1568 "
1569
1570 CMDLINE_SELECT="
1571     $ARCH_EXT_LIST
1572     $CONFIG_LIST
1573     $HAVE_LIST_CMDLINE
1574     $THREADS_LIST
1575     asm
1576     cross_compile
1577     debug
1578     extra_warnings
1579     logging
1580     lto
1581     optimizations
1582     stripping
1583 "
1584
1585 PATHS_LIST='
1586     bindir
1587     datadir
1588     incdir
1589     libdir
1590     mandir
1591     prefix
1592     shlibdir
1593 '
1594
1595 CMDLINE_SET="
1596     $PATHS_LIST
1597     ar
1598     arch
1599     as
1600     assert_level
1601     build_suffix
1602     cc
1603     cpu
1604     cross_prefix
1605     cxx
1606     dep_cc
1607     extra_version
1608     host_cc
1609     host_cflags
1610     host_ld
1611     host_ldflags
1612     host_libs
1613     host_os
1614     install
1615     ld
1616     logfile
1617     malloc_prefix
1618     nm
1619     optflags
1620     pkg_config
1621     progs_suffix
1622     random_seed
1623     samples
1624     strip
1625     sysinclude
1626     sysroot
1627     target_exec
1628     target_os
1629     target_path
1630     toolchain
1631     valgrind
1632     yasmexe
1633 "
1634
1635 CMDLINE_APPEND="
1636     extra_cflags
1637     extra_cxxflags
1638     host_cppflags
1639 "
1640
1641 # code dependency declarations
1642
1643 # architecture extensions
1644
1645 armv5te_deps="arm"
1646 armv6_deps="arm"
1647 armv6t2_deps="arm"
1648 neon_deps="arm"
1649 vfp_deps="arm"
1650 vfpv3_deps="vfp"
1651
1652 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1653
1654 mipsfpu_deps="mips"
1655 mips32r2_deps="mips"
1656 mipsdspr1_deps="mips"
1657 mipsdspr2_deps="mips"
1658
1659 altivec_deps="ppc"
1660 ppc4xx_deps="ppc"
1661
1662 vis_deps="sparc"
1663
1664 x86_64_suggest="fast_cmov i686"
1665
1666 amd3dnow_deps="mmx"
1667 amd3dnowext_deps="amd3dnow"
1668 mmx_deps="x86"
1669 mmxext_deps="mmx"
1670 sse_deps="mmxext"
1671 sse2_deps="sse"
1672 sse3_deps="sse2"
1673 ssse3_deps="sse3"
1674 sse4_deps="ssse3"
1675 sse42_deps="sse4"
1676 avx_deps="sse42"
1677 fma4_deps="avx"
1678
1679 mmx_external_deps="yasm"
1680 mmx_inline_deps="inline_asm"
1681 mmx_suggest="mmx_external mmx_inline"
1682
1683 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1684     eval dep=\$${ext}_deps
1685     eval ${ext}_external_deps='"${dep}_external"'
1686     eval ${ext}_inline_deps='"${dep}_inline"'
1687     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1688 done
1689
1690 aligned_stack_if_any="ppc x86"
1691 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1692 fast_clz_if_any="alpha avr32 mips ppc x86"
1693 fast_unaligned_if_any="ppc x86"
1694
1695 inline_asm_deps="!tms470"
1696 need_memalign="altivec neon sse"
1697
1698 symver_if_any="symver_asm_label symver_gnu_asm"
1699
1700 log2_deps="!msvcrt"
1701
1702 # subsystems
1703 dct_select="rdft"
1704 error_resilience_select="dsputil"
1705 frame_thread_encoder_deps="encoders threads"
1706 lpc_select="dsputil"
1707 mdct_select="fft"
1708 rdft_select="fft"
1709 mpegaudio_select="mpegaudiodsp"
1710 mpegaudiodsp_select="dct"
1711 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1712 mpegvideoenc_select="mpegvideo"
1713
1714 # decoders / encoders
1715 aac_decoder_select="mdct sinewin"
1716 aac_encoder_select="audio_frame_queue mdct sinewin"
1717 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1718 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1719 ac3_encoder_select="mdct ac3dsp dsputil"
1720 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1721 aic_decoder_select="dsputil golomb"
1722 alac_encoder_select="lpc"
1723 als_decoder_select="dsputil"
1724 amrnb_decoder_select="lsp"
1725 amrwb_decoder_select="lsp"
1726 amv_decoder_select="dsputil hpeldsp"
1727 amv_encoder_select="aandcttables"
1728 ape_decoder_select="dsputil"
1729 asv1_decoder_select="dsputil"
1730 asv1_encoder_select="dsputil"
1731 asv2_decoder_select="dsputil"
1732 asv2_encoder_select="dsputil"
1733 atrac1_decoder_select="mdct sinewin"
1734 atrac3_decoder_select="mdct"
1735 bink_decoder_select="dsputil hpeldsp"
1736 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1737 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1738 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1739 cllc_decoder_select="dsputil"
1740 comfortnoise_encoder_select="lpc"
1741 cook_decoder_select="dsputil mdct sinewin"
1742 cscd_decoder_select="lzo"
1743 cscd_decoder_suggest="zlib"
1744 dca_decoder_select="mdct"
1745 dirac_decoder_select="dsputil dwt golomb videodsp"
1746 dnxhd_decoder_select="dsputil"
1747 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1748 dvvideo_decoder_select="dsputil"
1749 dvvideo_encoder_select="dsputil"
1750 dxa_decoder_select="zlib"
1751 eac3_decoder_select="ac3_decoder"
1752 eac3_encoder_select="ac3_encoder"
1753 eamad_decoder_select="aandcttables dsputil mpegvideo"
1754 eatgq_decoder_select="aandcttables"
1755 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1756 exr_decoder_select="zlib"
1757 ffv1_decoder_select="dsputil golomb rangecoder"
1758 ffv1_encoder_select="dsputil rangecoder"
1759 ffvhuff_decoder_select="dsputil"
1760 ffvhuff_encoder_select="dsputil huffman"
1761 flac_decoder_select="golomb"
1762 flac_encoder_select="dsputil golomb lpc"
1763 flashsv_decoder_select="zlib"
1764 flashsv_encoder_select="zlib"
1765 flashsv2_encoder_select="zlib"
1766 flashsv2_decoder_select="zlib"
1767 flv_decoder_select="h263_decoder"
1768 flv_encoder_select="h263_encoder"
1769 fourxm_decoder_select="dsputil"
1770 fraps_decoder_select="dsputil huffman"
1771 g729_decoder_select="dsputil"
1772 h261_decoder_select="error_resilience mpegvideo"
1773 h261_encoder_select="aandcttables mpegvideoenc"
1774 h263_decoder_select="error_resilience h263_parser mpegvideo"
1775 h263_encoder_select="aandcttables mpegvideoenc"
1776 h263i_decoder_select="h263_decoder"
1777 h263p_encoder_select="h263_encoder"
1778 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1779 h264_decoder_suggest="error_resilience"
1780 huffyuv_decoder_select="dsputil"
1781 huffyuv_encoder_select="dsputil huffman"
1782 iac_decoder_select="dsputil fft mdct sinewin"
1783 imc_decoder_select="dsputil fft mdct sinewin"
1784 indeo3_decoder_select="hpeldsp"
1785 interplay_video_decoder_select="hpeldsp"
1786 jpegls_decoder_select="dsputil golomb hpeldsp"
1787 jpegls_encoder_select="golomb"
1788 jv_decoder_select="dsputil"
1789 lagarith_decoder_select="dsputil"
1790 ljpeg_encoder_select="aandcttables mpegvideoenc"
1791 loco_decoder_select="golomb"
1792 mdec_decoder_select="dsputil error_resilience mpegvideo"
1793 mimic_decoder_select="dsputil hpeldsp"
1794 mjpeg_decoder_select="dsputil hpeldsp"
1795 mjpegb_decoder_select="dsputil hpeldsp"
1796 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1797 mlp_decoder_select="dsputil mlp_parser"
1798 motionpixels_decoder_select="dsputil"
1799 mp1_decoder_select="mpegaudio"
1800 mp1float_decoder_select="mpegaudio"
1801 mp2_decoder_select="mpegaudio"
1802 mp2float_decoder_select="mpegaudio"
1803 mp3_decoder_select="mpegaudio"
1804 mp3adu_decoder_select="mpegaudio"
1805 mp3adufloat_decoder_select="mpegaudio"
1806 mp3float_decoder_select="mpegaudio"
1807 mp3on4_decoder_select="mpegaudio"
1808 mp3on4float_decoder_select="mpegaudio"
1809 mpc7_decoder_select="dsputil mpegaudiodsp"
1810 mpc8_decoder_select="dsputil mpegaudiodsp"
1811 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1812 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1813 mpeg1video_decoder_select="error_resilience mpegvideo"
1814 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1815 mpeg2video_decoder_select="error_resilience mpegvideo"
1816 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1817 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1818 mpeg4_encoder_select="h263_encoder"
1819 msmpeg4v1_decoder_select="h263_decoder"
1820 msmpeg4v2_decoder_select="h263_decoder"
1821 msmpeg4v2_encoder_select="h263_encoder"
1822 msmpeg4v3_decoder_select="h263_decoder"
1823 msmpeg4v3_encoder_select="h263_encoder"
1824 mss2_decoder_select="error_resilience vc1_decoder"
1825 mxpeg_decoder_select="dsputil hpeldsp"
1826 nellymoser_decoder_select="mdct sinewin"
1827 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1828 nuv_decoder_select="dsputil lzo"
1829 png_decoder_select="zlib"
1830 png_encoder_select="dsputil zlib"
1831 prores_decoder_select="dsputil"
1832 prores_encoder_select="dsputil"
1833 qcelp_decoder_select="lsp"
1834 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1835 ra_144_encoder_select="audio_frame_queue lpc"
1836 ralf_decoder_select="golomb"
1837 rtjpeg_decoder_select="dsputil"
1838 rv10_decoder_select="error_resilience h263_decoder"
1839 rv10_encoder_select="h263_encoder"
1840 rv20_decoder_select="error_resilience h263_decoder"
1841 rv20_encoder_select="h263_encoder"
1842 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1843 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1844 shorten_decoder_select="golomb"
1845 sipr_decoder_select="lsp"
1846 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1847 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1848 sonic_decoder_select="golomb"
1849 sonic_encoder_select="golomb"
1850 sonic_ls_encoder_select="golomb"
1851 sp5x_decoder_select="dsputil hpeldsp"
1852 svq1_decoder_select="hpeldsp"
1853 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1854 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1855 svq3_decoder_suggest="error_resilience zlib"
1856 tak_decoder_select="dsputil"
1857 theora_decoder_select="vp3_decoder"
1858 tiff_decoder_suggest="zlib"
1859 tiff_encoder_suggest="zlib"
1860 thp_decoder_select="dsputil hpeldsp"
1861 truehd_decoder_select="mlp_parser"
1862 truemotion2_decoder_select="dsputil"
1863 truespeech_decoder_select="dsputil"
1864 tscc_decoder_select="zlib"
1865 twinvq_decoder_select="mdct lsp sinewin"
1866 utvideo_decoder_select="dsputil"
1867 utvideo_encoder_select="dsputil huffman"
1868 vble_decoder_select="dsputil"
1869 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1870 vc1image_decoder_select="vc1_decoder"
1871 vorbis_decoder_select="mdct"
1872 vorbis_encoder_select="mdct"
1873 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1874 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1875 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1876 vp6a_decoder_select="vp6_decoder"
1877 vp6f_decoder_select="vp6_decoder"
1878 vp8_decoder_select="h264pred videodsp"
1879 wmapro_decoder_select="mdct sinewin"
1880 wmav1_decoder_select="mdct sinewin"
1881 wmav1_encoder_select="mdct sinewin"
1882 wmav2_decoder_select="mdct sinewin"
1883 wmav2_encoder_select="mdct sinewin"
1884 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1885 wmv1_decoder_select="h263_decoder"
1886 wmv1_encoder_select="h263_encoder"
1887 wmv2_decoder_select="h263_decoder videodsp"
1888 wmv2_encoder_select="h263_encoder"
1889 wmv3_decoder_select="vc1_decoder"
1890 wmv3image_decoder_select="wmv3_decoder"
1891 zerocodec_decoder_select="zlib"
1892 zlib_decoder_select="zlib"
1893 zlib_encoder_select="zlib"
1894 zmbv_decoder_select="zlib"
1895 zmbv_encoder_select="zlib"
1896
1897 # hardware accelerators
1898 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1899 dxva2_deps="dxva2api_h"
1900 vaapi_deps="va_va_h"
1901 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1902 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1903 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1904
1905 h263_vaapi_hwaccel_deps="vaapi"
1906 h263_vaapi_hwaccel_select="h263_decoder"
1907 h263_vdpau_hwaccel_deps="vdpau"
1908 h263_vdpau_hwaccel_select="h263_decoder"
1909 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1910 h264_dxva2_hwaccel_deps="dxva2"
1911 h264_dxva2_hwaccel_select="h264_decoder"
1912 h264_vaapi_hwaccel_deps="vaapi"
1913 h264_vaapi_hwaccel_select="h264_decoder"
1914 h264_vda_decoder_deps="vda"
1915 h264_vda_decoder_select="h264_decoder"
1916 h264_vda_hwaccel_deps="vda"
1917 h264_vda_hwaccel_select="h264_decoder"
1918 h264_vdpau_decoder_deps="vdpau"
1919 h264_vdpau_decoder_select="h264_decoder"
1920 h264_vdpau_hwaccel_deps="vdpau"
1921 h264_vdpau_hwaccel_select="h264_decoder"
1922 mpeg_vdpau_decoder_deps="vdpau"
1923 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1924 mpeg1_vdpau_decoder_deps="vdpau"
1925 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1926 mpeg1_vdpau_hwaccel_deps="vdpau"
1927 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1928 mpeg2_crystalhd_decoder_select="crystalhd"
1929 mpeg2_dxva2_hwaccel_deps="dxva2"
1930 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1931 mpeg2_vaapi_hwaccel_deps="vaapi"
1932 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1933 mpeg2_vdpau_hwaccel_deps="vdpau"
1934 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1935 mpeg4_crystalhd_decoder_select="crystalhd"
1936 mpeg4_vaapi_hwaccel_deps="vaapi"
1937 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1938 mpeg4_vdpau_decoder_deps="vdpau"
1939 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1940 mpeg4_vdpau_hwaccel_deps="vdpau"
1941 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1942 msmpeg4_crystalhd_decoder_select="crystalhd"
1943 vc1_crystalhd_decoder_select="crystalhd"
1944 vc1_dxva2_hwaccel_deps="dxva2"
1945 vc1_dxva2_hwaccel_select="vc1_decoder"
1946 vc1_vaapi_hwaccel_deps="vaapi"
1947 vc1_vaapi_hwaccel_select="vc1_decoder"
1948 vc1_vdpau_decoder_deps="vdpau"
1949 vc1_vdpau_decoder_select="vc1_decoder"
1950 vc1_vdpau_hwaccel_deps="vdpau"
1951 vc1_vdpau_hwaccel_select="vc1_decoder"
1952 wmv3_crystalhd_decoder_select="crystalhd"
1953 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1954 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1955 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1956 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1957
1958 # parsers
1959 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1960 mpeg4video_parser_select="error_resilience mpegvideo"
1961 mpegvideo_parser_select="error_resilience mpegvideo"
1962 vc1_parser_select="mpegvideo"
1963
1964 # external libraries
1965 libaacplus_encoder_deps="libaacplus"
1966 libcelt_decoder_deps="libcelt"
1967 libfaac_encoder_deps="libfaac"
1968 libfaac_encoder_select="audio_frame_queue"
1969 libfdk_aac_encoder_deps="libfdk_aac"
1970 libfdk_aac_encoder_select="audio_frame_queue"
1971 libgsm_decoder_deps="libgsm"
1972 libgsm_encoder_deps="libgsm"
1973 libgsm_ms_decoder_deps="libgsm"
1974 libgsm_ms_encoder_deps="libgsm"
1975 libilbc_decoder_deps="libilbc"
1976 libilbc_encoder_deps="libilbc"
1977 libmodplug_demuxer_deps="libmodplug"
1978 libmp3lame_encoder_deps="libmp3lame"
1979 libmp3lame_encoder_select="audio_frame_queue"
1980 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1981 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1982 libopencore_amrnb_encoder_select="audio_frame_queue"
1983 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1984 libopenjpeg_decoder_deps="libopenjpeg"
1985 libopenjpeg_encoder_deps="libopenjpeg"
1986 libopus_decoder_deps="libopus"
1987 libopus_encoder_deps="libopus"
1988 libopus_encoder_select="audio_frame_queue"
1989 libquvi_demuxer_deps="libquvi"
1990 libschroedinger_decoder_deps="libschroedinger"
1991 libschroedinger_encoder_deps="libschroedinger"
1992 libshine_encoder_deps="libshine"
1993 libshine_encoder_select="audio_frame_queue"
1994 libspeex_decoder_deps="libspeex"
1995 libspeex_encoder_deps="libspeex"
1996 libspeex_encoder_select="audio_frame_queue"
1997 libstagefright_h264_decoder_deps="libstagefright_h264"
1998 libtheora_encoder_deps="libtheora"
1999 libtwolame_encoder_deps="libtwolame"
2000 libvo_aacenc_encoder_deps="libvo_aacenc"
2001 libvo_aacenc_encoder_select="audio_frame_queue"
2002 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2003 libvorbis_decoder_deps="libvorbis"
2004 libvorbis_encoder_deps="libvorbis"
2005 libvorbis_encoder_select="audio_frame_queue"
2006 libvpx_vp8_decoder_deps="libvpx"
2007 libvpx_vp8_encoder_deps="libvpx"
2008 libvpx_vp9_decoder_deps="libvpx"
2009 libvpx_vp9_encoder_deps="libvpx"
2010 libx264_encoder_deps="libx264"
2011 libx264rgb_encoder_deps="libx264"
2012 libxavs_encoder_deps="libxavs"
2013 libxvid_encoder_deps="libxvid"
2014 libutvideo_decoder_deps="libutvideo"
2015 libutvideo_encoder_deps="libutvideo"
2016
2017 # demuxers / muxers
2018 ac3_demuxer_select="ac3_parser"
2019 asf_stream_muxer_select="asf_muxer"
2020 avisynth_demuxer_deps="avisynth"
2021 dirac_demuxer_select="dirac_parser"
2022 dts_demuxer_select="dca_parser"
2023 dtshd_demuxer_select="dca_parser"
2024 eac3_demuxer_select="ac3_parser"
2025 f4v_muxer_select="mov_muxer"
2026 flac_demuxer_select="flac_parser"
2027 ipod_muxer_select="mov_muxer"
2028 ismv_muxer_select="mov_muxer"
2029 libnut_demuxer_deps="libnut"
2030 libnut_muxer_deps="libnut"
2031 matroska_audio_muxer_select="matroska_muxer"
2032 matroska_demuxer_suggest="bzlib lzo zlib"
2033 mov_demuxer_suggest="zlib"
2034 mov_muxer_select="rtpenc_chain"
2035 mp3_demuxer_select="mpegaudio_parser"
2036 mp4_muxer_select="mov_muxer"
2037 mpegts_muxer_select="adts_muxer latm_muxer"
2038 mpegtsraw_demuxer_select="mpegts_demuxer"
2039 mxf_d10_muxer_select="mxf_muxer"
2040 ogg_demuxer_select="golomb"
2041 psp_muxer_select="mov_muxer"
2042 rtp_demuxer_select="sdp_demuxer"
2043 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2044 rtsp_demuxer_select="http_protocol rtpdec"
2045 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2046 sap_demuxer_select="sdp_demuxer"
2047 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2048 sdp_demuxer_select="rtpdec"
2049 smoothstreaming_muxer_select="ismv_muxer"
2050 spdif_muxer_select="aac_parser"
2051 tak_demuxer_select="tak_parser"
2052 tg2_muxer_select="mov_muxer"
2053 tgp_muxer_select="mov_muxer"
2054 vobsub_demuxer_select="mpegps_demuxer"
2055 w64_demuxer_deps="wav_demuxer"
2056 w64_muxer_deps="wav_muxer"
2057
2058 # indevs / outdevs
2059 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2060 alsa_outdev_deps="alsa_asoundlib_h"
2061 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2062 caca_outdev_deps="libcaca"
2063 dshow_indev_deps="IBaseFilter"
2064 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2065 dv1394_indev_deps="dv1394 dv_demuxer"
2066 fbdev_indev_deps="linux_fb_h"
2067 iec61883_indev_deps="libiec61883"
2068 jack_indev_deps="jack_jack_h sem_timedwait"
2069 lavfi_indev_deps="avfilter"
2070 libcdio_indev_deps="libcdio"
2071 libdc1394_indev_deps="libdc1394"
2072 libv4l2_indev_deps="libv4l2"
2073 openal_indev_deps="openal"
2074 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2075 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2076 pulse_indev_deps="libpulse"
2077 sdl_outdev_deps="sdl"
2078 sndio_indev_deps="sndio_h"
2079 sndio_outdev_deps="sndio_h"
2080 v4l_indev_deps="linux_videodev_h"
2081 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2082 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2083 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2084 vfwcap_indev_extralibs="-lavicap32"
2085 x11grab_indev_deps="x11grab"
2086
2087 # protocols
2088 bluray_protocol_deps="libbluray"
2089 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2090 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2091 ffrtmpcrypt_protocol_select="tcp_protocol"
2092 ffrtmphttp_protocol_deps="!librtmp_protocol"
2093 ffrtmphttp_protocol_select="http_protocol"
2094 ftp_protocol_select="tcp_protocol"
2095 gopher_protocol_select="network"
2096 httpproxy_protocol_select="tcp_protocol"
2097 http_protocol_select="tcp_protocol"
2098 https_protocol_select="tls_protocol"
2099 librtmp_protocol_deps="librtmp"
2100 librtmpe_protocol_deps="librtmp"
2101 librtmps_protocol_deps="librtmp"
2102 librtmpt_protocol_deps="librtmp"
2103 librtmpte_protocol_deps="librtmp"
2104 mmsh_protocol_select="http_protocol"
2105 mmst_protocol_select="network"
2106 rtmp_protocol_deps="!librtmp_protocol"
2107 rtmp_protocol_select="tcp_protocol"
2108 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2109 rtmps_protocol_deps="!librtmp_protocol"
2110 rtmps_protocol_select="tls_protocol"
2111 rtmpt_protocol_select="ffrtmphttp_protocol"
2112 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2113 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2114 rtp_protocol_select="udp_protocol"
2115 sctp_protocol_deps="struct_sctp_event_subscribe"
2116 sctp_protocol_select="network"
2117 srtp_protocol_select="rtp_protocol"
2118 tcp_protocol_select="network"
2119 tls_protocol_deps_any="openssl gnutls"
2120 tls_protocol_select="tcp_protocol"
2121 udp_protocol_select="network"
2122
2123 # filters
2124 aconvert_filter_deps="swresample"
2125 amovie_filter_deps="avcodec avformat"
2126 aresample_filter_deps="swresample"
2127 ass_filter_deps="libass"
2128 asyncts_filter_deps="avresample"
2129 atempo_filter_deps="avcodec rdft"
2130 azmq_filter_deps="libzmq"
2131 blackframe_filter_deps="gpl"
2132 boxblur_filter_deps="gpl"
2133 colormatrix_filter_deps="gpl"
2134 cropdetect_filter_deps="gpl"
2135 dctdnoiz_filter_deps="avcodec fft"
2136 delogo_filter_deps="gpl"
2137 deshake_filter_deps="avcodec"
2138 deshake_filter_select="dsputil"
2139 drawtext_filter_deps="libfreetype"
2140 ebur128_filter_deps="gpl"
2141 flite_filter_deps="libflite"
2142 frei0r_filter_deps="frei0r dlopen"
2143 frei0r_filter_extralibs='$ldl'
2144 frei0r_src_filter_deps="frei0r dlopen"
2145 frei0r_src_filter_extralibs='$ldl'
2146 geq_filter_deps="gpl"
2147 histeq_filter_deps="gpl"
2148 hqdn3d_filter_deps="gpl"
2149 hue_filter_deps="gpl"
2150 interlace_filter_deps="gpl"
2151 kerndeint_filter_deps="gpl"
2152 movie_filter_deps="avcodec avformat"
2153 mp_filter_deps="gpl avcodec swscale inline_asm"
2154 mpdecimate_filter_deps="gpl avcodec"
2155 mptestsrc_filter_deps="gpl"
2156 negate_filter_deps="lut_filter"
2157 noise_filter_deps="gpl"
2158 resample_filter_deps="avresample"
2159 ocv_filter_deps="libopencv"
2160 owdenoise_filter_deps="gpl"
2161 pan_filter_deps="swresample"
2162 pp_filter_deps="gpl postproc"
2163 removelogo_filter_deps="avcodec avformat swscale"
2164 scale_filter_deps="swscale"
2165 smartblur_filter_deps="gpl swscale"
2166 showspectrum_filter_deps="avcodec rdft"
2167 stereo3d_filter_deps="gpl"
2168 subtitles_filter_deps="avformat avcodec libass"
2169 super2xsai_filter_deps="gpl"
2170 tinterlace_filter_deps="gpl"
2171 vidstabdetect_filter_deps="libvidstab"
2172 vidstabtransform_filter_deps="libvidstab"
2173 yadif_filter_deps="gpl"
2174 pixfmts_super2xsai_test_deps="super2xsai_filter"
2175 tinterlace_merge_test_deps="tinterlace_filter"
2176 tinterlace_pad_test_deps="tinterlace_filter"
2177 zmq_filter_deps="libzmq"
2178
2179 # libraries
2180 avcodec_deps="avutil"
2181 avdevice_deps="avutil avcodec avformat"
2182 avfilter_deps="avutil"
2183 avformat_deps="avutil avcodec"
2184 avresample_deps="avutil"
2185 postproc_deps="avutil gpl"
2186 swscale_deps="avutil"
2187
2188 # programs
2189 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2190 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2191                null_filter
2192                setpts_filter trim_filter"
2193 ffplay_deps="avcodec avformat swscale swresample sdl"
2194 ffplay_select="rdft crop_filter"
2195 ffprobe_deps="avcodec avformat"
2196 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2197 ffserver_extralibs='$ldl'
2198
2199 # documentation
2200 podpages_deps="perl"
2201 manpages_deps="perl pod2man"
2202 htmlpages_deps="texi2html"
2203 txtpages_deps="makeinfo"
2204 doc_deps_any="manpages htmlpages podpages txtpages"
2205
2206 # default parameters
2207
2208 logfile="config.log"
2209
2210 # installation paths
2211 prefix_default="/usr/local"
2212 bindir_default='${prefix}/bin'
2213 datadir_default='${prefix}/share/ffmpeg'
2214 incdir_default='${prefix}/include'
2215 libdir_default='${prefix}/lib'
2216 mandir_default='${prefix}/share/man'
2217 shlibdir_default="$libdir_default"
2218
2219 # toolchain
2220 ar_default="ar"
2221 cc_default="gcc"
2222 cxx_default="g++"
2223 host_cc_default="gcc"
2224 cp_f="cp -f"
2225 install="install"
2226 ln_s="ln -s -f"
2227 nm_default="nm -g"
2228 objformat="elf"
2229 pkg_config_default=pkg-config
2230 ranlib="ranlib"
2231 strip_default="strip"
2232 yasmexe_default="yasm"
2233
2234 nogas=":"
2235
2236 # machine
2237 arch_default=$(uname -m)
2238 cpu="generic"
2239
2240 # OS
2241 target_os_default=$(tolower $(uname -s))
2242 host_os=$target_os_default
2243
2244 # configurable options
2245 enable $PROGRAM_LIST
2246 enable $DOCUMENT_LIST
2247 enable $(filter_out avresample $LIBRARY_LIST)
2248 enable stripping
2249
2250 enable asm
2251 enable debug
2252 enable doc
2253 enable optimizations
2254 enable runtime_cpudetect
2255 enable safe_bitstream_reader
2256 enable static
2257 enable swscale_alpha
2258
2259 # Enable hwaccels by default.
2260 enable dxva2 vaapi vdpau
2261
2262 # build settings
2263 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2264 FFSERVERLDFLAGS=-Wl,-E
2265 LIBPREF="lib"
2266 LIBSUF=".a"
2267 FULLNAME='$(NAME)$(BUILDSUF)'
2268 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2269 SLIBPREF="lib"
2270 SLIBSUF=".so"
2271 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2272 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2273 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2274 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2275 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2276 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2277
2278 asflags_filter=echo
2279 cflags_filter=echo
2280 ldflags_filter=echo
2281
2282 AS_C='-c'
2283 AS_O='-o $@'
2284 CC_C='-c'
2285 CC_E='-E -o $@'
2286 CC_O='-o $@'
2287 CXX_C='-c'
2288 CXX_O='-o $@'
2289 LD_O='-o $@'
2290 LD_LIB='-l%'
2291 LD_PATH='-L'
2292 HOSTCC_C='-c'
2293 HOSTCC_O='-o $@'
2294 HOSTLD_O='-o $@'
2295
2296 host_cflags='-O3 -g'
2297 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2298 host_libs='-lm'
2299 host_cflags_filter=echo
2300 host_ldflags_filter=echo
2301
2302 target_path='$(CURDIR)'
2303
2304 # since the object filename is not given with the -MM flag, the compiler
2305 # is only able to print the basename, and we must add the path ourselves
2306 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2307 DEPFLAGS='-MM'
2308
2309 # find source path
2310 if test -f configure; then
2311     source_path=.
2312 else
2313     source_path=$(cd $(dirname "$0"); pwd)
2314     echo "$source_path" | grep -q '[[:blank:]]' &&
2315         die "Out of tree builds are impossible with whitespace in source path."
2316     test -e "$source_path/config.h" &&
2317         die "Out of tree builds are impossible with config.h in source dir."
2318 fi
2319
2320 for v in "$@"; do
2321     r=${v#*=}
2322     l=${v%"$r"}
2323     r=$(sh_quote "$r")
2324     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2325 done
2326
2327 find_things(){
2328     thing=$1
2329     pattern=$2
2330     file=$source_path/$3
2331     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2332 }
2333
2334 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2335 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2336 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2337 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2338 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2339 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2340 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2341 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2342 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2343 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2344 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2345
2346 ALL_COMPONENTS="
2347     $BSF_LIST
2348     $DECODER_LIST
2349     $DEMUXER_LIST
2350     $ENCODER_LIST
2351     $FILTER_LIST
2352     $HWACCEL_LIST
2353     $INDEV_LIST
2354     $MUXER_LIST
2355     $OUTDEV_LIST
2356     $PARSER_LIST
2357     $PROTOCOL_LIST
2358 "
2359
2360 for n in $COMPONENT_LIST; do
2361     v=$(toupper ${n%s})_LIST
2362     eval enable \$$v
2363     eval ${n}_if_any="\$$v"
2364 done
2365
2366 enable $ARCH_EXT_LIST
2367
2368 die_unknown(){
2369     echo "Unknown option \"$1\"."
2370     echo "See $0 --help for available options."
2371     exit 1
2372 }
2373
2374 print_3_columns() {
2375     cat | tr ' ' '\n' | sort | pr -r -3 -t
2376 }
2377
2378 show_list() {
2379     suffix=_$1
2380     shift
2381     echo $* | sed s/$suffix//g | print_3_columns
2382     exit 0
2383 }
2384
2385 rand_list(){
2386     IFS=', '
2387     set -- $*
2388     unset IFS
2389     for thing; do
2390         comp=${thing%:*}
2391         prob=${thing#$comp}
2392         prob=${prob#:}
2393         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2394         echo "prob ${prob:-0.5}"
2395         printf '%s\n' $comp
2396     done
2397 }
2398
2399 do_random(){
2400     action=$1
2401     shift
2402     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2403     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2404 }
2405
2406 for opt do
2407     optval="${opt#*=}"
2408     case "$opt" in
2409         --extra-ldflags=*)
2410             add_ldflags $optval
2411         ;;
2412         --extra-libs=*)
2413             add_extralibs $optval
2414         ;;
2415         --disable-devices)
2416             disable $INDEV_LIST $OUTDEV_LIST
2417         ;;
2418         --enable-debug=*)
2419             debuglevel="$optval"
2420         ;;
2421         --disable-programs)
2422             disable $PROGRAM_LIST
2423         ;;
2424         --disable-everything)
2425             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2426         ;;
2427         --disable-all)
2428             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2429             disable $LIBRARY_LIST $PROGRAM_LIST doc
2430         ;;
2431         --enable-random|--disable-random)
2432             action=${opt%%-random}
2433             do_random ${action#--} $COMPONENT_LIST
2434         ;;
2435         --enable-random=*|--disable-random=*)
2436             action=${opt%%-random=*}
2437             do_random ${action#--} $optval
2438         ;;
2439         --enable-*=*|--disable-*=*)
2440             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2441             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2442             eval list=\$$(toupper $thing)_LIST
2443             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2444             list=$(filter "$name" $list)
2445             [ "$list" = "" ] && warn "Option $opt did not match anything"
2446             $action $list
2447         ;;
2448         --enable-?*|--disable-?*)
2449             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2450             if is_in $option $COMPONENT_LIST; then
2451                 test $action = disable && action=unset
2452                 eval $action \$$(toupper ${option%s})_LIST
2453             elif is_in $option $CMDLINE_SELECT; then
2454                 $action $option
2455             else
2456                 die_unknown $opt
2457             fi
2458         ;;
2459         --list-*)
2460             NAME="${opt#--list-}"
2461             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2462             NAME=${NAME%s}
2463             eval show_list $NAME \$$(toupper $NAME)_LIST
2464         ;;
2465         --help|-h) show_help
2466         ;;
2467         --fatal-warnings) enable fatal_warnings
2468         ;;
2469         *)
2470             optname="${opt%%=*}"
2471             optname="${optname#--}"
2472             optname=$(echo "$optname" | sed 's/-/_/g')
2473             if is_in $optname $CMDLINE_SET; then
2474                 eval $optname='$optval'
2475             elif is_in $optname $CMDLINE_APPEND; then
2476                 append $optname "$optval"
2477             else
2478                 die_unknown $opt
2479             fi
2480         ;;
2481     esac
2482 done
2483
2484 disabled logging && logfile=/dev/null
2485
2486 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2487 set >> $logfile
2488
2489 test -n "$cross_prefix" && enable cross_compile
2490
2491 if enabled cross_compile; then
2492     test -n "$arch" && test -n "$target_os" ||
2493         die "Must specify target arch and OS when cross-compiling"
2494 fi
2495
2496 ar_default="${cross_prefix}${ar_default}"
2497 cc_default="${cross_prefix}${cc_default}"
2498 cxx_default="${cross_prefix}${cxx_default}"
2499 nm_default="${cross_prefix}${nm_default}"
2500 pkg_config_default="${cross_prefix}${pkg_config_default}"
2501 ranlib="${cross_prefix}${ranlib}"
2502 strip_default="${cross_prefix}${strip_default}"
2503
2504 sysinclude_default="${sysroot}/usr/include"
2505
2506 test -n "$valgrind" && toolchain="valgrind-memcheck"
2507
2508 case "$toolchain" in
2509     clang-asan)
2510         cc_default="clang"
2511         add_cflags  -fsanitize=address
2512         add_ldflags -fsanitize=address
2513     ;;
2514     clang-tsan)
2515         cc_default="clang"
2516         add_cflags  -fsanitize=thread -pie
2517         add_ldflags -fsanitize=thread -pie
2518     ;;
2519     valgrind-massif)
2520         target_exec_default=${valgrind:-"valgrind"}
2521         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2522     ;;
2523     valgrind-memcheck)
2524         target_exec_default=${valgrind:-"valgrind"}
2525         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2526     ;;
2527     msvc)
2528         cc_default="c99wrap cl"
2529         ld_default="c99wrap link"
2530         nm_default="dumpbin -symbols"
2531         ar_default="lib"
2532         target_os_default="win32"
2533     ;;
2534     gcov)
2535         add_cflags  -fprofile-arcs -ftest-coverage
2536         add_ldflags -fprofile-arcs -ftest-coverage
2537     ;;
2538     ?*)
2539         die "Unknown toolchain $toolchain"
2540     ;;
2541 esac
2542
2543 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2544 enabled cross_compile || host_cc_default=$cc
2545 set_default host_cc
2546
2547 if ! $pkg_config --version >/dev/null 2>&1; then
2548     warn "$pkg_config not found, library detection may fail."
2549     pkg_config=false
2550 fi
2551
2552 exesuf() {
2553     case $1 in
2554         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2555     esac
2556 }
2557
2558 EXESUF=$(exesuf $target_os)
2559 HOSTEXESUF=$(exesuf $host_os)
2560
2561 # set temporary file name
2562 : ${TMPDIR:=$TEMPDIR}
2563 : ${TMPDIR:=$TMP}
2564 : ${TMPDIR:=/tmp}
2565
2566 if ! check_cmd mktemp -u XXXXXX; then
2567     # simple replacement for missing mktemp
2568     # NOT SAFE FOR GENERAL USE
2569     mktemp(){
2570         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2571     }
2572 fi
2573
2574 tmpfile(){
2575     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2576         (set -C; exec > $tmp) 2>/dev/null ||
2577         die "Unable to create temporary file in $TMPDIR."
2578     append TMPFILES $tmp
2579     eval $1=$tmp
2580 }
2581
2582 trap 'rm -f -- $TMPFILES' EXIT
2583
2584 tmpfile TMPASM .asm
2585 tmpfile TMPC   .c
2586 tmpfile TMPCPP .cpp
2587 tmpfile TMPE   $EXESUF
2588 tmpfile TMPH   .h
2589 tmpfile TMPO   .o
2590 tmpfile TMPS   .S
2591 tmpfile TMPSH  .sh
2592 tmpfile TMPV   .ver
2593
2594 unset -f mktemp
2595
2596 chmod +x $TMPE
2597
2598 # make sure we can execute files in $TMPDIR
2599 cat > $TMPSH 2>> $logfile <<EOF
2600 #! /bin/sh
2601 EOF
2602 chmod +x $TMPSH >> $logfile 2>&1
2603 if ! $TMPSH >> $logfile 2>&1; then
2604     cat <<EOF
2605 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2606 variable to another directory and make sure that it is not mounted noexec.
2607 EOF
2608     die "Sanity test failed."
2609 fi
2610
2611 ccc_flags(){
2612     for flag; do
2613         case $flag in
2614             -std=c99)           echo -c99                       ;;
2615             -mcpu=*)            echo -arch ${flag#*=}           ;;
2616             -mieee)             echo -ieee                      ;;
2617             -O*|-fast)          echo $flag                      ;;
2618             -fno-math-errno)    echo -assume nomath_errno       ;;
2619             -g)                 echo -g3                        ;;
2620             -Wall)              echo -msg_enable level2         ;;
2621             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2622             -Wl,*)              echo $flag                      ;;
2623             -f*|-W*)                                            ;;
2624             *)                  echo $flag                      ;;
2625         esac
2626    done
2627 }
2628
2629 msvc_flags(){
2630     for flag; do
2631         case $flag in
2632             -fomit-frame-pointer) echo -Oy ;;
2633             -g)                   echo -Z7 ;;
2634             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2635                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2636                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2637                                        -wd4554 \
2638                                        -wd4996 -wd4273 ;;
2639             -std=c99)             ;;
2640             -fno-math-errno)      ;;
2641             -fno-common)          ;;
2642             -fno-signed-zeros)    ;;
2643             -fPIC)                ;;
2644             -lz)                  echo zlib.lib ;;
2645             -lavifil32)           echo vfw32.lib ;;
2646             -lavicap32)           echo vfw32.lib user32.lib ;;
2647             -l*)                  echo ${flag#-l}.lib ;;
2648             *)                    echo $flag ;;
2649         esac
2650     done
2651 }
2652
2653 pgi_flags(){
2654     for flag; do
2655         case $flag in
2656             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2657             -fomit-frame-pointer) echo -Mnoframe ;;
2658             -g)                   echo -gopt ;;
2659             *)                    echo $flag ;;
2660         esac
2661     done
2662 }
2663
2664 suncc_flags(){
2665     for flag; do
2666         case $flag in
2667             -march=*|-mcpu=*)
2668                 case "${flag#*=}" in
2669                     native)                   echo -xtarget=native       ;;
2670                     v9|niagara)               echo -xarch=sparc          ;;
2671                     ultrasparc)               echo -xarch=sparcvis       ;;
2672                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2673                     i586|pentium)             echo -xchip=pentium        ;;
2674                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2675                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2676                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2677                     pentium4*)          echo -xtarget=pentium4           ;;
2678                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2679                     *-sse3)             echo -xarch=sse3                 ;;
2680                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2681                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2682                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2683                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2684                     bdver*)                   echo -xarch=avx            ;;
2685                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2686                     k8|opteron|athlon64|athlon-fx)
2687                                               echo -xarch=sse2a          ;;
2688                     athlon*)                  echo -xarch=pentium_proa   ;;
2689                 esac
2690                 ;;
2691             -std=c99)             echo -xc99              ;;
2692             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2693             -fPIC)                echo -KPIC -xcode=pic32 ;;
2694             -W*,*)                echo $flag              ;;
2695             -f*-*|-W*|-mimpure-text)                      ;;
2696             -shared)              echo -G                 ;;
2697             *)                    echo $flag              ;;
2698         esac
2699     done
2700 }
2701
2702 tms470_flags(){
2703     for flag; do
2704         case $flag in
2705             -march=*|-mcpu=*)
2706                 case "${flag#*=}" in
2707                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2708                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2709                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2710                     armv6*|arm11*)          echo -mv=6   ;;
2711                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2712                                             echo -mv=5e  ;;
2713                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2714                 esac
2715                 ;;
2716             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2717             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2718             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2719             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2720             -msoft-float)   echo --float_support=vfplib       ;;
2721             -O[0-3]|-mf=*)  echo $flag                        ;;
2722             -g)             echo -g -mn                       ;;
2723             -pds=*)         echo $flag                        ;;
2724             -D*|-I*)        echo $flag                        ;;
2725             --gcc|--abi=*)  echo $flag                        ;;
2726             -me)            echo $flag                        ;;
2727         esac
2728     done
2729 }
2730
2731 probe_cc(){
2732     pfx=$1
2733     _cc=$2
2734
2735     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2736     unset _ld_o _ldflags _ld_lib _ld_path
2737     unset _depflags _DEPCMD _DEPFLAGS
2738     _flags_filter=echo
2739
2740     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2741         _type=llvm_gcc
2742         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2743         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2744         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2745         _cflags_speed='-O3'
2746         _cflags_size='-Os'
2747     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2748         _type=gcc
2749         gcc_version=$($_cc --version | head -n1)
2750         gcc_basever=$($_cc -dumpversion)
2751         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2752         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2753         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2754         if ! $_cc -dumpversion | grep -q '^2\.'; then
2755             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2756         fi
2757         _cflags_speed='-O3'
2758         _cflags_size='-Os'
2759     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2760         _type=icc
2761         _ident=$($_cc --version | head -n1)
2762         _depflags='-MMD'
2763         _cflags_speed='-O3'
2764         _cflags_size='-Os'
2765         _cflags_noopt='-O1'
2766     elif $_cc -v 2>&1 | grep -q xlc; then
2767         _type=xlc
2768         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2769         _cflags_speed='-O5'
2770         _cflags_size='-O5 -qcompact'
2771     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2772         _type=ccc
2773         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2774         _DEPFLAGS='-M'
2775         _cflags_speed='-fast'
2776         _cflags_size='-O1'
2777         _flags_filter=ccc_flags
2778     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2779         test -d "$sysroot" || die "No valid sysroot specified."
2780         _type=armcc
2781         _ident=$($_cc --vsn | head -n1)
2782         armcc_conf="$PWD/armcc.conf"
2783         $_cc --arm_linux_configure                 \
2784              --arm_linux_config_file="$armcc_conf" \
2785              --configure_sysroot="$sysroot"        \
2786              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2787              die "Error creating armcc configuration file."
2788         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2789         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2790         as_default="${cross_prefix}gcc"
2791         _depflags='-MMD'
2792         _cflags_speed='-O3'
2793         _cflags_size='-Os'
2794     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2795         _type=tms470
2796         _ident=$($_cc -version | head -n1 | tr -s ' ')
2797         _flags='--gcc --abi=eabi -me'
2798         _cc_e='-ppl -fe=$@'
2799         _cc_o='-fe=$@'
2800         _depflags='-ppa -ppd=$(@:.o=.d)'
2801         _cflags_speed='-O3 -mf=5'
2802         _cflags_size='-O3 -mf=2'
2803         _flags_filter=tms470_flags
2804     elif $_cc -v 2>&1 | grep -q clang; then
2805         _type=clang
2806         _ident=$($_cc --version | head -n1)
2807         _depflags='-MMD'
2808         _cflags_speed='-O3'
2809         _cflags_size='-Os'
2810     elif $_cc -V 2>&1 | grep -q Sun; then
2811         _type=suncc
2812         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2813         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2814         _DEPFLAGS='-xM1 -xc99'
2815         _ldflags='-std=c99'
2816         _cflags_speed='-O5'
2817         _cflags_size='-O5 -xspace'
2818         _flags_filter=suncc_flags
2819     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2820         _type=pathscale
2821         _ident=$($_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'
2826     elif $_cc -v 2>&1 | grep -q Open64; then
2827         _type=open64
2828         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2829         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2830         _cflags_speed='-O2'
2831         _cflags_size='-Os'
2832         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2833     elif $_cc -V 2>&1 | grep -q Portland; then
2834         _type=pgi
2835         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2836         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2837         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2838         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2839         _cflags_noopt="-O"
2840         _flags_filter=pgi_flags
2841     elif $_cc 2>&1 | grep -q Microsoft; then
2842         _type=msvc
2843         _ident=$($cc 2>&1 | head -n1)
2844         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2845         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2846         _cflags_speed="-O2"
2847         _cflags_size="-O1"
2848         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2849         if $_cc 2>&1 | grep -q Linker; then
2850             _ld_o='-out $@'
2851         else
2852             _ld_o='-Fe$@'
2853         fi
2854         _cc_o='-Fo $@'
2855         _cc_e='-P -Fi $@'
2856         _flags_filter=msvc_flags
2857         _ld_lib='lib%.a'
2858         _ld_path='-libpath:'
2859         _flags='-nologo'
2860         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2861         if [ $pfx = hostcc ]; then
2862             append _cflags -Dsnprintf=_snprintf
2863         fi
2864         disable stripping
2865     fi
2866
2867     eval ${pfx}_type=\$_type
2868     eval ${pfx}_ident=\$_ident
2869 }
2870
2871 set_ccvars(){
2872     eval ${1}_C=\${_cc_c-\${${1}_C}}
2873     eval ${1}_E=\${_cc_e-\${${1}_E}}
2874     eval ${1}_O=\${_cc_o-\${${1}_O}}
2875
2876     if [ -n "$_depflags" ]; then
2877         eval ${1}_DEPFLAGS=\$_depflags
2878     else
2879         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2880         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2881         eval DEP${1}FLAGS=\$_flags
2882     fi
2883 }
2884
2885 probe_cc cc "$cc"
2886 cflags_filter=$_flags_filter
2887 cflags_speed=$_cflags_speed
2888 cflags_size=$_cflags_size
2889 cflags_noopt=$_cflags_noopt
2890 add_cflags $_flags $_cflags
2891 cc_ldflags=$_ldflags
2892 set_ccvars CC
2893
2894 probe_cc hostcc "$host_cc"
2895 host_cflags_filter=$_flags_filter
2896 add_host_cflags  $_flags $_cflags
2897 set_ccvars HOSTCC
2898
2899 test -n "$cc_type" && enable $cc_type ||
2900     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2901
2902 : ${as_default:=$cc}
2903 : ${dep_cc_default:=$cc}
2904 : ${ld_default:=$cc}
2905 : ${host_ld_default:=$host_cc}
2906 set_default ar as dep_cc ld host_ld
2907
2908 probe_cc as "$as"
2909 asflags_filter=$_flags_filter
2910 add_asflags $_flags $_cflags
2911 set_ccvars AS
2912
2913 probe_cc ld "$ld"
2914 ldflags_filter=$_flags_filter
2915 add_ldflags $_flags $_ldflags
2916 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2917 LD_O=${_ld_o-$LD_O}
2918 LD_LIB=${_ld_lib-$LD_LIB}
2919 LD_PATH=${_ld_path-$LD_PATH}
2920
2921 probe_cc hostld "$host_ld"
2922 host_ldflags_filter=$_flags_filter
2923 add_host_ldflags $_flags $_ldflags
2924 HOSTLD_O=${_ld_o-$HOSTLD_O}
2925
2926 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2927     probe_cc depcc "$dep_cc"
2928     CCDEP=${_DEPCMD:-$DEPCMD}
2929     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2930     DEPCCFLAGS=$_flags
2931 fi
2932
2933 if $ar 2>&1 | grep -q Microsoft; then
2934     arflags="-nologo"
2935     ar_o='-out:$@'
2936 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2937     arflags="rq"
2938     ar_o='$@'
2939 else
2940     arflags="rc"
2941     ar_o='$@'
2942 fi
2943
2944 add_cflags $extra_cflags
2945 add_cxxflags $extra_cxxflags
2946 add_asflags $extra_cflags
2947
2948 if test -n "$sysroot"; then
2949     case "$cc_type" in
2950         gcc|llvm_gcc|clang)
2951             add_cppflags --sysroot="$sysroot"
2952             add_ldflags --sysroot="$sysroot"
2953         ;;
2954         tms470)
2955             add_cppflags -I"$sysinclude"
2956             add_ldflags  --sysroot="$sysroot"
2957         ;;
2958     esac
2959 fi
2960
2961 if test "$cpu" = host; then
2962     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2963
2964     case "$cc_type" in
2965         gcc|llvm_gcc)
2966             check_native(){
2967                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2968                 sed -n "/cc1.*$1=/{
2969                             s/.*$1=\\([^ ]*\\).*/\\1/
2970                             p
2971                             q
2972                         }" $TMPE
2973             }
2974             cpu=$(check_native -march || check_native -mcpu)
2975         ;;
2976     esac
2977
2978     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2979 fi
2980
2981 # Deal with common $arch aliases
2982 case "$arch" in
2983     aarch64|arm64)
2984         arch="aarch64"
2985     ;;
2986     arm*|iPad*)
2987         arch="arm"
2988     ;;
2989     mips*|IP*)
2990         arch="mips"
2991     ;;
2992     parisc*|hppa*)
2993         arch="parisc"
2994     ;;
2995     "Power Macintosh"|ppc*|powerpc*)
2996         arch="ppc"
2997     ;;
2998     s390|s390x)
2999         arch="s390"
3000     ;;
3001     sh4|sh)
3002         arch="sh4"
3003     ;;
3004     sun4u|sparc*)
3005         arch="sparc"
3006     ;;
3007     tilegx|tile-gx)
3008         arch="tilegx"
3009     ;;
3010     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3011         arch="x86"
3012     ;;
3013 esac
3014
3015 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3016 enable $arch
3017
3018 # Add processor-specific flags
3019 if enabled aarch64; then
3020
3021     case $cpu in
3022         armv*)
3023             cpuflags="-march=$cpu"
3024         ;;
3025         *)
3026             cpuflags="-mcpu=$cpu"
3027         ;;
3028     esac
3029
3030 elif enabled alpha; then
3031
3032     cpuflags="-mcpu=$cpu"
3033
3034 elif enabled arm; then
3035
3036     check_arm_arch() {
3037         check_cpp_condition stddef.h \
3038             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3039             $cpuflags
3040     }
3041
3042     probe_arm_arch() {
3043         if   check_arm_arch 4;        then echo armv4;
3044         elif check_arm_arch 4T;       then echo armv4t;
3045         elif check_arm_arch 5;        then echo armv5;
3046         elif check_arm_arch 5E;       then echo armv5e;
3047         elif check_arm_arch 5T;       then echo armv5t;
3048         elif check_arm_arch 5TE;      then echo armv5te;
3049         elif check_arm_arch 5TEJ;     then echo armv5te;
3050         elif check_arm_arch 6;        then echo armv6;
3051         elif check_arm_arch 6J;       then echo armv6j;
3052         elif check_arm_arch 6K;       then echo armv6k;
3053         elif check_arm_arch 6Z;       then echo armv6z;
3054         elif check_arm_arch 6ZK;      then echo armv6zk;
3055         elif check_arm_arch 6T2;      then echo armv6t2;
3056         elif check_arm_arch 7;        then echo armv7;
3057         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3058         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3059         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3060         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3061         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3062         fi
3063     }
3064
3065     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3066
3067     case $cpu in
3068         armv*)
3069             cpuflags="-march=$cpu"
3070             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3071         ;;
3072         *)
3073             cpuflags="-mcpu=$cpu"
3074             case $cpu in
3075                 cortex-a*)                               subarch=armv7a  ;;
3076                 cortex-r*)                               subarch=armv7r  ;;
3077                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3078                 arm11*)                                  subarch=armv6   ;;
3079                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3080                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3081                 *)                             subarch=$(probe_arm_arch) ;;
3082             esac
3083         ;;
3084     esac
3085
3086     case "$subarch" in
3087         armv5t*)    enable fast_clz                ;;
3088         armv[6-8]*) enable fast_clz fast_unaligned ;;
3089     esac
3090
3091 elif enabled avr32; then
3092
3093     case $cpu in
3094         ap7[02]0[0-2])
3095             subarch="avr32_ap"
3096             cpuflags="-mpart=$cpu"
3097         ;;
3098         ap)
3099             subarch="avr32_ap"
3100             cpuflags="-march=$cpu"
3101         ;;
3102         uc3[ab]*)
3103             subarch="avr32_uc"
3104             cpuflags="-mcpu=$cpu"
3105         ;;
3106         uc)
3107             subarch="avr32_uc"
3108             cpuflags="-march=$cpu"
3109         ;;
3110     esac
3111
3112 elif enabled bfin; then
3113
3114     cpuflags="-mcpu=$cpu"
3115
3116 elif enabled mips; then
3117
3118     cpuflags="-march=$cpu"
3119
3120     case $cpu in
3121         24kc)
3122             disable mipsfpu
3123             disable mipsdspr1
3124             disable mipsdspr2
3125         ;;
3126         24kf*)
3127             disable mipsdspr1
3128             disable mipsdspr2
3129         ;;
3130         24kec|34kc|1004kc)
3131             disable mipsfpu
3132             disable mipsdspr2
3133         ;;
3134         24kef*|34kf*|1004kf*)
3135             disable mipsdspr2
3136         ;;
3137         74kc)
3138             disable mipsfpu
3139         ;;
3140     esac
3141
3142 elif enabled ppc; then
3143
3144     case $(tolower $cpu) in
3145         601|ppc601|powerpc601)
3146             cpuflags="-mcpu=601"
3147             disable altivec
3148         ;;
3149         603*|ppc603*|powerpc603*)
3150             cpuflags="-mcpu=603"
3151             disable altivec
3152         ;;
3153         604*|ppc604*|powerpc604*)
3154             cpuflags="-mcpu=604"
3155             disable altivec
3156         ;;
3157         g3|75*|ppc75*|powerpc75*)
3158             cpuflags="-mcpu=750"
3159             disable altivec
3160         ;;
3161         g4|745*|ppc745*|powerpc745*)
3162             cpuflags="-mcpu=7450"
3163         ;;
3164         74*|ppc74*|powerpc74*)
3165             cpuflags="-mcpu=7400"
3166         ;;
3167         g5|970|ppc970|powerpc970)
3168             cpuflags="-mcpu=970"
3169         ;;
3170         power[3-7]*)
3171             cpuflags="-mcpu=$cpu"
3172         ;;
3173         cell)
3174             cpuflags="-mcpu=cell"
3175             enable ldbrx
3176         ;;
3177         e500mc)
3178             cpuflags="-mcpu=e500mc"
3179             disable altivec
3180         ;;
3181         e500v2)
3182             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3183             disable altivec
3184         ;;
3185         e500)
3186             cpuflags="-mcpu=8540 -mhard-float"
3187             disable altivec
3188         ;;
3189     esac
3190
3191 elif enabled sparc; then
3192
3193     case $cpu in
3194         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3195             cpuflags="-mcpu=$cpu"
3196             disable vis
3197         ;;
3198         ultrasparc*|niagara[234])
3199             cpuflags="-mcpu=$cpu"
3200         ;;
3201     esac
3202
3203 elif enabled x86; then
3204
3205     case $cpu in
3206         i[345]86|pentium)
3207             cpuflags="-march=$cpu"
3208             disable mmx
3209         ;;
3210         # targets that do NOT support nopl and conditional mov (cmov)
3211         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3212             cpuflags="-march=$cpu"
3213             disable i686
3214         ;;
3215         # targets that do support nopl and conditional mov (cmov)
3216         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3217             cpuflags="-march=$cpu"
3218             enable i686
3219             enable fast_cmov
3220         ;;
3221         # targets that do support conditional mov but on which it's slow
3222         pentium4|pentium4m|prescott|nocona)
3223             cpuflags="-march=$cpu"
3224             enable i686
3225             disable fast_cmov
3226         ;;
3227     esac
3228
3229 fi
3230
3231 if [ "$cpu" != generic ]; then
3232     add_cflags  $cpuflags
3233     add_asflags $cpuflags
3234 fi
3235
3236 # compiler sanity check
3237 check_exec <<EOF
3238 int main(void){ return 0; }
3239 EOF
3240 if test "$?" != 0; then
3241     echo "$cc is unable to create an executable file."
3242     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3243         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3244         echo "Only do this if you know what cross compiling means."
3245     fi
3246     die "C compiler test failed."
3247 fi
3248
3249 add_cppflags -D_ISOC99_SOURCE
3250 add_cxxflags -D__STDC_CONSTANT_MACROS
3251 check_cflags -std=c99
3252 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3253 #include <stdlib.h>
3254 EOF
3255 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3256 #include <stdlib.h>
3257 EOF
3258
3259 check_host_cflags -std=c99
3260 check_host_cflags -Wall
3261
3262 check_64bit(){
3263     arch32=$1
3264     arch64=$2
3265     expr=$3
3266     check_code cc "" "int test[2*($expr) - 1]" &&
3267         subarch=$arch64 || subarch=$arch32
3268 }
3269
3270 case "$arch" in
3271     aarch64|alpha|ia64)
3272         spic=$shared
3273     ;;
3274     mips)
3275         check_64bit mips mips64 '_MIPS_SIM > 1'
3276         spic=$shared
3277     ;;
3278     parisc)
3279         check_64bit parisc parisc64 'sizeof(void *) > 4'
3280         spic=$shared
3281     ;;
3282     ppc)
3283         check_64bit ppc ppc64 'sizeof(void *) > 4'
3284         spic=$shared
3285     ;;
3286     sparc)
3287         check_64bit sparc sparc64 'sizeof(void *) > 4'
3288         spic=$shared
3289     ;;
3290     x86)
3291         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3292         if test "$subarch" = "x86_64"; then
3293             spic=$shared
3294         fi
3295     ;;
3296     ppc)
3297         check_cc <<EOF && subarch="ppc64"
3298         int test[(int)sizeof(char*) - 7];
3299 EOF
3300     ;;
3301 esac
3302
3303 enable $subarch
3304 enabled spic && enable_weak pic
3305
3306 # OS specific
3307 case $target_os in
3308     haiku)
3309         prefix_default="/boot/common"
3310         network_extralibs="-lnetwork"
3311         host_libs=
3312         ;;
3313     sunos)
3314         FFSERVERLDFLAGS=""
3315         SHFLAGS='-shared -Wl,-h,$$(@F)'
3316         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3317         network_extralibs="-lsocket -lnsl"
3318         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3319         # When using suncc to build, the Solaris linker will mark
3320         # an executable with each instruction set encountered by
3321         # the Solaris assembler.  As our libraries contain their own
3322         # guards for processor-specific code, instead suppress
3323         # generation of the HWCAPS ELF section on Solaris x86 only.
3324         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3325         nm_default='nm -P -g'
3326         ;;
3327     netbsd)
3328         disable symver
3329         oss_indev_extralibs="-lossaudio"
3330         oss_outdev_extralibs="-lossaudio"
3331         enabled gcc || check_ldflags -Wl,-zmuldefs
3332         ;;
3333     openbsd|bitrig)
3334         disable symver
3335         SHFLAGS='-shared'
3336         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3337         SLIB_INSTALL_LINKS=
3338         oss_indev_extralibs="-lossaudio"
3339         oss_outdev_extralibs="-lossaudio"
3340         ;;
3341     dragonfly)
3342         disable symver
3343         ;;
3344     freebsd)
3345         ;;
3346     bsd/os)
3347         add_extralibs -lpoll -lgnugetopt
3348         strip="strip -d"
3349         ;;
3350     darwin)
3351         gas="gas-preprocessor.pl $cc"
3352         enabled ppc && add_asflags -force_cpusubtype_ALL
3353         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3354         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3355         strip="${strip} -x"
3356         add_ldflags -Wl,-dynamic,-search_paths_first
3357         SLIBSUF=".dylib"
3358         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3359         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3360         FFSERVERLDFLAGS=-Wl,-bind_at_load
3361         objformat="macho"
3362         enabled x86_64 && objformat="macho64"
3363         enabled_any pic shared ||
3364             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3365         ;;
3366     mingw32*)
3367         if test $target_os = "mingw32ce"; then
3368             disable network
3369         else
3370             target_os=mingw32
3371         fi
3372         LIBTARGET=i386
3373         if enabled x86_64; then
3374             LIBTARGET="i386:x86-64"
3375         elif enabled arm; then
3376             LIBTARGET=arm-wince
3377         fi
3378         check_ldflags -Wl,--nxcompat
3379         check_ldflags -Wl,--dynamicbase
3380         shlibdir_default="$bindir_default"
3381         SLIBPREF=""
3382         SLIBSUF=".dll"
3383         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3384         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3385         dlltool="${cross_prefix}dlltool"
3386         if check_cmd lib.exe -list; then
3387             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3388             if enabled x86_64; then
3389                 LIBTARGET=x64
3390             fi
3391         elif check_cmd $dlltool --version; then
3392             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3393         fi
3394         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3395         SLIB_INSTALL_LINKS=
3396         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3397         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3398         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3399         objformat="win32"
3400         ranlib=:
3401         enable dos_paths
3402         disable pic
3403         ;;
3404     win32|win64)
3405         if enabled shared; then
3406             # Link to the import library instead of the normal static library
3407             # for shared libs.
3408             LD_LIB='%.lib'
3409             # Cannot build shared and static libraries at the same time with
3410             # MSVC.
3411             disable static
3412         fi
3413         shlibdir_default="$bindir_default"
3414         SLIBPREF=""
3415         SLIBSUF=".dll"
3416         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3417         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3418         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3419         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3420         SLIB_INSTALL_LINKS=
3421         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3422         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3423         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3424         objformat="win32"
3425         ranlib=:
3426         enable dos_paths
3427         disable pic
3428         ;;
3429     cygwin*)
3430         target_os=cygwin
3431         shlibdir_default="$bindir_default"
3432         SLIBPREF="cyg"
3433         SLIBSUF=".dll"
3434         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3435         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3436         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3437         SLIB_INSTALL_LINKS=
3438         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3439         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3440         objformat="win32"
3441         enable dos_paths
3442         disable pic
3443         ;;
3444     *-dos|freedos|opendos)
3445         network_extralibs="-lsocket"
3446         objformat="coff"
3447         enable dos_paths
3448         add_cppflags -U__STRICT_ANSI__
3449         ;;
3450     linux)
3451         enable dv1394
3452         ;;
3453     irix*)
3454         target_os=irix
3455         ranlib="echo ignoring ranlib"
3456         ;;
3457     os/2*)
3458         strip="lxlite -CS"
3459         ln_s="cp -f"
3460         objformat="aout"
3461         add_cppflags -D_GNU_SOURCE
3462         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3463         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3464         FFSERVERLDFLAGS=""
3465         LIBSUF="_s.a"
3466         SLIBPREF=""
3467         SLIBSUF=".dll"
3468         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3469         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3470         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3471             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3472             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3473             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3474             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3475             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3476         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3477             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3478         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3479         enable dos_paths
3480         enable_weak os2threads
3481         ;;
3482     gnu/kfreebsd)
3483         add_cppflags -D_BSD_SOURCE
3484         ;;
3485     gnu)
3486         ;;
3487     qnx)
3488         add_cppflags -D_QNX_SOURCE
3489         network_extralibs="-lsocket"
3490         ;;
3491     symbian)
3492         SLIBSUF=".dll"
3493         enable dos_paths
3494         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3495         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3496         add_ldflags -Wl,--target1-abs,--no-undefined \
3497                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3498                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3499         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3500                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3501                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3502         ;;
3503     osf1)
3504         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3505         FFSERVERLDFLAGS=
3506         ;;
3507     minix)
3508         ;;
3509     plan9)
3510         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3511                      -D_REENTRANT_SOURCE        \
3512                      -D_RESEARCH_SOURCE         \
3513                      -DFD_SETSIZE=96            \
3514                      -DHAVE_SOCK_OPTS
3515         add_compat strtod.o strtod=avpriv_strtod
3516         network_extralibs='-lbsd'
3517         exeobjs=compat/plan9/main.o
3518         disable ffserver
3519         cp_f='cp'
3520         ;;
3521     none)
3522         ;;
3523     *)
3524         die "Unknown OS '$target_os'."
3525         ;;
3526 esac
3527
3528 # determine libc flavour
3529
3530 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3531 if check_cpp_condition features.h "defined __UCLIBC__"; then
3532     libc_type=uclibc
3533     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3534 elif check_cpp_condition features.h "defined __GLIBC__"; then
3535     libc_type=glibc
3536     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3537 # MinGW headers can be installed on Cygwin, so check for newlib first.
3538 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3539     libc_type=newlib
3540     add_cppflags -U__STRICT_ANSI__
3541 elif check_header _mingw.h; then
3542     libc_type=mingw
3543     check_cpp_condition _mingw.h \
3544         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3545             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3546         die "ERROR: MinGW runtime version must be >= 3.15."
3547     add_cppflags -U__STRICT_ANSI__
3548     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3549             __MINGW64_VERSION_MAJOR < 3"; then
3550         add_compat msvcrt/snprintf.o
3551         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3552     fi
3553 elif check_func_headers stdlib.h _get_doserrno; then
3554     libc_type=msvcrt
3555     add_compat strtod.o strtod=avpriv_strtod
3556     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3557                                  _snprintf=avpriv_snprintf  \
3558                                  vsnprintf=avpriv_vsnprintf
3559     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3560     # 0x601 by default unless something else is set by the user.
3561     # This can easily lead to us detecting functions only present
3562     # in such new versions and producing binaries requiring windows 7.0.
3563     # Therefore explicitly set the default to XP unless the user has
3564     # set something else on the command line.
3565     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3566 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3567     libc_type=klibc
3568 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3569     libc_type=bionic
3570     add_compat strtod.o strtod=avpriv_strtod
3571 fi
3572
3573 test -n "$libc_type" && enable $libc_type
3574
3575 # hacks for compiler/libc/os combinations
3576
3577 if enabled_all tms470 glibc; then
3578     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3579     add_cppflags -D__USER_LABEL_PREFIX__=
3580     add_cppflags -D__builtin_memset=memset
3581     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3582     add_cflags   -pds=48    # incompatible redefinition of macro
3583 fi
3584
3585 if enabled_all ccc glibc; then
3586     add_ldflags -Wl,-z,now  # calls to libots crash without this
3587 fi
3588
3589 esc(){
3590     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3591 }
3592
3593 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3594
3595 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3596
3597 set_default $PATHS_LIST
3598 set_default nm
3599
3600 # we need to build at least one lib type
3601 if ! enabled_any static shared; then
3602     cat <<EOF
3603 At least one library type must be built.
3604 Specify --enable-static to build the static libraries or --enable-shared to
3605 build the shared libraries as well. To only build the shared libraries specify
3606 --disable-static in addition to --enable-shared.
3607 EOF
3608     exit 1;
3609 fi
3610
3611 die_license_disabled() {
3612     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3613 }
3614
3615 die_license_disabled_gpl() {
3616     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3617 }
3618
3619 die_license_disabled gpl libcdio
3620 die_license_disabled gpl libutvideo
3621 die_license_disabled gpl libvidstab
3622 die_license_disabled gpl libx264
3623 die_license_disabled gpl libxavs
3624 die_license_disabled gpl libxvid
3625 die_license_disabled gpl x11grab
3626
3627 die_license_disabled nonfree libaacplus
3628 die_license_disabled nonfree libfaac
3629 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3630 enabled gpl && die_license_disabled_gpl nonfree openssl
3631
3632 die_license_disabled version3 libopencore_amrnb
3633 die_license_disabled version3 libopencore_amrwb
3634 die_license_disabled version3 libvo_aacenc
3635 die_license_disabled version3 libvo_amrwbenc
3636
3637 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3638
3639 disabled optimizations || check_cflags -fomit-frame-pointer
3640
3641 enable_weak_pic() {
3642     disabled pic && return
3643     enable pic
3644     add_cppflags -DPIC
3645     add_cflags   -fPIC
3646     add_asflags  -fPIC
3647 }
3648
3649 enabled pic && enable_weak_pic
3650
3651 check_cc <<EOF || die "Symbol mangling check failed."
3652 int ff_extern;
3653 EOF
3654 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3655 extern_prefix=${sym%%ff_extern*}
3656
3657 check_cc <<EOF && enable_weak inline_asm
3658 void foo(void) { __asm__ volatile ("" ::); }
3659 EOF
3660
3661 _restrict=
3662 for restrict_keyword in restrict __restrict__ __restrict; do
3663     check_cc <<EOF && _restrict=$restrict_keyword && break
3664 void foo(char * $restrict_keyword p);
3665 EOF
3666 done
3667
3668 check_cc <<EOF && enable attribute_packed
3669 struct { int x; } __attribute__((packed)) x;
3670 EOF
3671
3672 check_cc <<EOF && enable attribute_may_alias
3673 union { int x; } __attribute__((may_alias)) x;
3674 EOF
3675
3676 check_cc <<EOF || die "endian test failed"
3677 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3678 EOF
3679 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3680
3681 if enabled alpha; then
3682
3683     check_cflags -mieee
3684
3685 elif enabled arm; then
3686
3687     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3688 float func(float a, float b){ return a+b; }
3689 EOF
3690
3691     enabled thumb && check_cflags -mthumb || check_cflags -marm
3692     nogas=die
3693
3694     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3695         enable vfp_args
3696     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3697         case "${cross_prefix:-$cc}" in
3698             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3699             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3700 __asm__ (".eabi_attribute 28, 1");
3701 int main(void) { return 0; }
3702 EOF
3703         esac
3704         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3705     fi
3706
3707     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3708     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3709     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3710     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3711     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3712     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3713
3714     [ $target_os = linux ] ||
3715         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3716             $ARCH_EXT_LIST_ARM
3717
3718     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3719     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3720
3721     enabled_all armv6t2 shared !pic && enable_weak_pic
3722
3723 elif enabled mips; then
3724
3725     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3726     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3727      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3728     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3729      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3730     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3731      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3732     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3733      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3734
3735 elif enabled parisc; then
3736
3737     if enabled gcc; then
3738         case $($cc -dumpversion) in
3739             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3740         esac
3741     fi
3742
3743 elif enabled ppc; then
3744
3745     enable local_aligned_8 local_aligned_16
3746
3747     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3748     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3749     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3750     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3751
3752     # AltiVec flags: The FSF version of GCC differs from the Apple version
3753     if enabled altivec; then
3754         nogas=warn
3755         check_cflags -maltivec -mabi=altivec &&
3756         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3757         check_cflags -faltivec
3758
3759         # check if our compiler supports Motorola AltiVec C API
3760         check_cc <<EOF || disable altivec
3761 $inc_altivec_h
3762 int main(void) {
3763     vector signed int v1 = (vector signed int) { 0 };
3764     vector signed int v2 = (vector signed int) { 1 };
3765     v1 = vec_add(v1, v2);
3766     return 0;
3767 }
3768 EOF
3769
3770         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3771     fi
3772
3773 elif enabled sparc; then
3774
3775     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3776
3777 elif enabled x86; then
3778
3779     check_builtin rdtsc    intrin.h   "__rdtsc()"
3780     check_builtin mm_empty mmintrin.h "_mm_empty()"
3781
3782     enable local_aligned_8 local_aligned_16
3783
3784     # check whether EBP is available on x86
3785     # As 'i' is stored on the stack, this program will crash
3786     # if the base pointer is used to access it because the
3787     # base pointer is cleared in the inline assembly code.
3788     check_exec_crash <<EOF && enable ebp_available
3789 volatile int i=0;
3790 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3791 return i;
3792 EOF
3793
3794     # check whether EBX is available on x86
3795     check_inline_asm ebx_available '""::"b"(0)' &&
3796         check_inline_asm ebx_available '"":::"%ebx"'
3797
3798     # check whether xmm clobbers are supported
3799     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3800
3801     # check whether binutils is new enough to compile SSSE3/MMXEXT
3802     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3803     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3804
3805     if ! disabled_any asm mmx yasm; then
3806         if check_cmd $yasmexe --version; then
3807             enabled x86_64 && yasm_extra="-m amd64"
3808             yasm_debug="-g dwarf2"
3809         elif check_cmd nasm -v; then
3810             yasmexe=nasm
3811             yasm_debug="-g -F dwarf"
3812             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3813         fi
3814
3815         YASMFLAGS="-f $objformat $yasm_extra"
3816         enabled pic               && append YASMFLAGS "-DPIC"
3817         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3818         case "$objformat" in
3819             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3820         esac
3821
3822         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3823             die "yasm not found, use --disable-yasm for a crippled build"
3824         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3825         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3826         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3827     fi
3828
3829     case "$cpu" in
3830         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3831             disable fast_clz
3832         ;;
3833     esac
3834
3835 fi
3836
3837 if enabled asm; then
3838     as=${gas:=$as}
3839     check_as <<EOF && enable gnu_as || \
3840         $nogas "GNU assembler not found, install gas-preprocessor"
3841 .macro m n
3842 \n: .int 0
3843 .endm
3844 m x
3845 EOF
3846 fi
3847
3848 check_ldflags -Wl,--as-needed
3849
3850 if check_func dlopen; then
3851     ldl=
3852 elif check_func dlopen -ldl; then
3853     ldl=-ldl
3854 fi
3855
3856 if ! disabled network; then
3857     check_type "sys/types.h sys/socket.h" socklen_t
3858     check_type netdb.h "struct addrinfo"
3859     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3860     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3861     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3862     check_type netinet/in.h "struct sockaddr_in6"
3863     check_type poll.h "struct pollfd"
3864     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3865     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3866     check_type netinet/sctp.h "struct sctp_event_subscribe"
3867     check_func getaddrinfo $network_extralibs
3868     check_func getservbyport $network_extralibs
3869     # Prefer arpa/inet.h over winsock2
3870     if check_header arpa/inet.h ; then
3871         check_func closesocket
3872     elif check_header winsock2.h ; then
3873         check_func_headers winsock2.h closesocket -lws2 &&
3874             network_extralibs="-lws2" ||
3875         { check_func_headers winsock2.h closesocket -lws2_32 &&
3876             network_extralibs="-lws2_32"; }
3877         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3878         check_type ws2tcpip.h socklen_t
3879         check_type ws2tcpip.h "struct addrinfo"
3880         check_type ws2tcpip.h "struct group_source_req"
3881         check_type ws2tcpip.h "struct ip_mreq_source"
3882         check_type ws2tcpip.h "struct ipv6_mreq"
3883         check_type winsock2.h "struct pollfd"
3884         check_type ws2tcpip.h "struct sockaddr_in6"
3885         check_type ws2tcpip.h "struct sockaddr_storage"
3886         check_struct winsock2.h "struct sockaddr" sa_len
3887     else
3888         disable network
3889     fi
3890 fi
3891
3892 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3893 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3894
3895 check_func  access
3896 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3897 check_func  fcntl
3898 check_func  fork
3899 check_func_headers stdlib.h getenv
3900 check_func  gethrtime
3901 check_func  getopt
3902 check_func  getrusage
3903 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3904 check_func  gettimeofday
3905 check_func  inet_aton $network_extralibs
3906 check_func  isatty
3907 check_func  localtime_r
3908 check_func  ${malloc_prefix}memalign            && enable memalign
3909 check_func  mkstemp
3910 check_func  mmap
3911 check_func  mprotect
3912 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3913 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3914 check_func  setrlimit
3915 check_func  strerror_r
3916 check_func  sched_getaffinity
3917 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3918 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3919 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3920 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3921 check_func  sysconf
3922 check_func  sysctl
3923 check_func  usleep
3924 check_func_headers conio.h kbhit
3925 check_func_headers windows.h PeekNamedPipe
3926 check_func_headers io.h setmode
3927 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3928 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3929 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3930 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3931 check_func_headers windows.h GetProcessAffinityMask
3932 check_func_headers windows.h GetProcessTimes
3933 check_func_headers windows.h GetSystemTimeAsFileTime
3934 check_func_headers windows.h MapViewOfFile
3935 check_func_headers windows.h SetConsoleTextAttribute
3936 check_func_headers windows.h Sleep
3937 check_func_headers windows.h VirtualAlloc
3938 check_func_headers glob.h glob
3939
3940 check_header cl/cl.h
3941 check_header direct.h
3942 check_header dlfcn.h
3943 check_header dxva.h
3944 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3945 check_header io.h
3946 check_header libcrystalhd/libcrystalhd_if.h
3947 check_header malloc.h
3948 check_header poll.h
3949 check_header sys/mman.h
3950 check_header sys/param.h
3951 check_header sys/resource.h
3952 check_header sys/select.h
3953 check_header sys/time.h
3954 check_header termios.h
3955 check_header unistd.h
3956 check_header vdpau/vdpau.h
3957 check_header vdpau/vdpau_x11.h
3958 check_header VideoDecodeAcceleration/VDADecoder.h
3959 check_header windows.h
3960 check_header X11/extensions/XvMClib.h
3961 check_header asm/types.h
3962
3963 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3964 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3965
3966 if ! disabled w32threads && ! enabled pthreads; then
3967     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3968 fi
3969
3970 # check for some common methods of building with pthread support
3971 # do this before the optional library checks as some of them require pthreads
3972 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3973     enable pthreads
3974     if check_func pthread_create; then
3975         :
3976     elif check_func pthread_create -pthread; then
3977         add_cflags -pthread
3978         add_extralibs -pthread
3979     elif check_func pthread_create -pthreads; then
3980         add_cflags -pthreads
3981         add_extralibs -pthreads
3982     elif check_func pthread_create -lpthreadGC2; then
3983         add_extralibs -lpthreadGC2
3984     elif ! check_lib pthread.h pthread_create -lpthread; then
3985         disable pthreads
3986     fi
3987 fi
3988
3989 for thread in $THREADS_LIST; do
3990     if enabled $thread; then
3991         test -n "$thread_type" &&
3992             die "ERROR: Only one thread type must be selected." ||
3993             thread_type="$thread"
3994     fi
3995 done
3996
3997 if enabled pthreads; then
3998   check_func pthread_cancel
3999 fi
4000
4001 enabled sync_val_compare_and_swap && enable atomics_gcc
4002 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
4003 enabled MemoryBarrier && enable atomics_win32
4004
4005 check_lib math.h sin -lm && LIBM="-lm"
4006 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4007
4008 atan2f_args=2
4009 ldexpf_args=2
4010 powf_args=2
4011
4012 for func in $MATH_FUNCS; do
4013     eval check_mathfunc $func \${${func}_args:-1}
4014 done
4015
4016 # these are off by default, so fail if requested and not available
4017 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
4018                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4019                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4020 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4021 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4022 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4023 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4024 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4025 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
4026 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
4027 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
4028                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4029                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4030 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
4031 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4032 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4033 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"
4034 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
4035 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4036 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4037                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4038                         done || die "ERROR: libgsm not found"; }
4039 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4040 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4041 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4042 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4043 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4044 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4045 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4046 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4047                          check_lib openjpeg.h opj_version -lopenjpeg ||
4048                          die "ERROR: libopenjpeg not found"; }
4049 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4050 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4051 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4052 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4053 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4054 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4055 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4056 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4057 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4058     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4059     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4060 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4061 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4062                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4063                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4064 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4065 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4066 enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4067 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4068 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4069 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4070 enabled libvpx     && {
4071     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4072                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4073     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 ||
4074                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4075     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4076     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4077 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4078                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4079                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4080 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4081 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4082 enabled libzmq     && require_pkg_config libzmq zmq.h zmq_ctx_new
4083 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4084                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4085                         die "ERROR: openal not found"; } &&
4086                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4087                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4088 enabled opencl     && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4089                         check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4090                         die "ERROR: opencl not found"; } &&
4091                       { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4092                         check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4093                         die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4094 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4095                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4096                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4097                         die "ERROR: openssl not found"; }
4098
4099 if enabled gnutls; then
4100     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4101     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4102 fi
4103
4104 # libdc1394 check
4105 if enabled libdc1394; then
4106     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4107         enable libdc1394_2; } ||
4108     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4109         enable libdc1394_1; } ||
4110     die "ERROR: No version of libdc1394 found "
4111 fi
4112
4113 SDL_CONFIG="${cross_prefix}sdl-config"
4114 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4115     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4116     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4117     enable sdl
4118 else
4119   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4120     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4121     sdl_libs=$("${SDL_CONFIG}" --libs)
4122     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4123     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4124     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4125     enable sdl
4126   fi
4127 fi
4128 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4129
4130 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4131 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4132 perl --version > /dev/null 2>&1 && enable perl || disable perl
4133 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4134 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4135
4136 check_header linux/fb.h
4137 check_header linux/videodev.h
4138 check_header linux/videodev2.h
4139 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4140
4141 check_header sys/videoio.h
4142
4143 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4144 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4145 # w32api 3.12 had it defined wrong
4146 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4147
4148 check_type "dshow.h" IBaseFilter
4149
4150 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4151 { check_header dev/bktr/ioctl_meteor.h &&
4152   check_header dev/bktr/ioctl_bt848.h; } ||
4153 { check_header machine/ioctl_meteor.h &&
4154   check_header machine/ioctl_bt848.h; } ||
4155 { check_header dev/video/meteor/ioctl_meteor.h &&
4156   check_header dev/video/bktr/ioctl_bt848.h; } ||
4157 check_header dev/ic/bt8xx.h
4158
4159 check_header sndio.h
4160 if check_struct sys/soundcard.h audio_buf_info bytes; then
4161     enable_safe sys/soundcard.h
4162 else
4163     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4164     #include <sys/soundcard.h>
4165     audio_buf_info abc;
4166 EOF
4167 fi
4168 check_header soundcard.h
4169
4170 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4171
4172 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4173     check_func jack_port_get_latency_range -ljack
4174
4175 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4176
4177 if enabled libcdio; then
4178     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
4179 fi
4180
4181 enabled x11grab                                           &&
4182 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4183 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4184 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4185
4186 enabled vaapi &&
4187     check_lib va/va.h vaInitialize -lva ||
4188     disable vaapi
4189
4190 enabled vdpau &&
4191     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4192     disable vdpau
4193
4194 # Funny iconv installations are not unusual, so check it after all flags have been set
4195 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4196
4197 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4198
4199 # add some useful compiler flags if supported
4200 check_cflags -Wdeclaration-after-statement
4201 check_cflags -Wall
4202 check_cflags -Wno-parentheses
4203 check_cflags -Wno-switch
4204 check_cflags -Wno-format-zero-length
4205 check_cflags -Wdisabled-optimization
4206 check_cflags -Wpointer-arith
4207 check_cflags -Wredundant-decls
4208 check_cflags -Wno-pointer-sign
4209 check_cflags -Wwrite-strings
4210 check_cflags -Wtype-limits
4211 check_cflags -Wundef
4212 check_cflags -Wmissing-prototypes
4213 check_cflags -Wno-pointer-to-int-cast
4214 check_cflags -Wstrict-prototypes
4215 enabled extra_warnings && check_cflags -Winline
4216
4217 # add some linker flags
4218 check_ldflags -Wl,--warn-common
4219 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4220 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4221
4222 enabled xmm_clobber_test &&
4223     check_ldflags -Wl,--wrap,avcodec_open2              \
4224                   -Wl,--wrap,avcodec_decode_audio4      \
4225                   -Wl,--wrap,avcodec_decode_video2      \
4226                   -Wl,--wrap,avcodec_decode_subtitle2   \
4227                   -Wl,--wrap,avcodec_encode_audio2      \
4228                   -Wl,--wrap,avcodec_encode_video       \
4229                   -Wl,--wrap,avcodec_encode_subtitle    \
4230                   -Wl,--wrap,sws_scale ||
4231     disable xmm_clobber_test
4232
4233 echo "X{};" > $TMPV
4234 if test_ldflags -Wl,--version-script,$TMPV; then
4235     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4236     check_cc <<EOF && enable symver_asm_label
4237 void ff_foo(void) __asm__ ("av_foo@VERSION");
4238 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4239 EOF
4240     check_cc <<EOF && enable symver_gnu_asm
4241 __asm__(".symver ff_foo,av_foo@VERSION");
4242 void ff_foo(void) {}
4243 EOF
4244 fi
4245
4246 if [ -z "$optflags" ]; then
4247     if enabled small; then
4248         optflags=$cflags_size
4249     elif enabled optimizations; then
4250         optflags=$cflags_speed
4251     else
4252         optflags=$cflags_noopt
4253     fi
4254 fi
4255
4256 check_optflags(){
4257     check_cflags "$@"
4258     enabled lto && check_ldflags "$@"
4259 }
4260
4261
4262 if enabled lto; then
4263     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4264     check_cflags  -flto
4265     check_ldflags -flto $cpuflags
4266 fi
4267
4268 check_optflags $optflags
4269 check_optflags -fno-math-errno
4270 check_optflags -fno-signed-zeros
4271
4272 enabled ftrapv && check_cflags -ftrapv
4273
4274 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4275 int x;
4276 EOF
4277
4278
4279 if enabled icc; then
4280     # Just warnings, no remarks
4281     check_cflags -w1
4282     # -wd: Disable following warnings
4283     # 144, 167, 556: -Wno-pointer-sign
4284     # 188: enumerated type mixed with another type
4285     # 1292: attribute "foo" ignored
4286     # 1419: external declaration in primary source file
4287     # 10006: ignoring unknown option -fno-signed-zeros
4288     # 10148: ignoring unknown option -Wno-parentheses
4289     # 10156: ignoring option '-W'; no argument required
4290     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4291     # 11030: Warning unknown option --as-needed
4292     # 10156: ignoring option '-export'; no argument required
4293     check_ldflags -wd10156,11030
4294     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4295     enable ebp_available
4296     if enabled x86_32; then
4297         icc_version=$($cc -dumpversion)
4298         test ${icc_version%%.*} -ge 11 &&
4299             check_cflags -falign-stack=maintain-16-byte ||
4300             disable aligned_stack
4301     fi
4302 elif enabled ccc; then
4303     # disable some annoying warnings
4304     add_cflags -msg_disable bitnotint
4305     add_cflags -msg_disable mixfuncvoid
4306     add_cflags -msg_disable nonstandcast
4307     add_cflags -msg_disable unsupieee
4308 elif enabled gcc; then
4309     check_optflags -fno-tree-vectorize
4310     check_cflags -Werror=implicit-function-declaration
4311     check_cflags -Werror=missing-prototypes
4312     check_cflags -Werror=return-type
4313     check_cflags -Werror=vla
4314 elif enabled llvm_gcc; then
4315     check_cflags -mllvm -stack-alignment=16
4316 elif enabled clang; then
4317     check_cflags -mllvm -stack-alignment=16
4318     check_cflags -Qunused-arguments
4319     check_cflags -Werror=implicit-function-declaration
4320     check_cflags -Werror=missing-prototypes
4321     check_cflags -Werror=return-type
4322 elif enabled armcc; then
4323     # 2523: use of inline assembler is deprecated
4324     add_cflags -W${armcc_opt},--diag_suppress=2523
4325     add_cflags -W${armcc_opt},--diag_suppress=1207
4326     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4327     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4328     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4329     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4330 elif enabled tms470; then
4331     add_cflags -pds=824 -pds=837
4332 elif enabled pathscale; then
4333     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4334 elif enabled msvc; then
4335     enabled x86_32 && disable aligned_stack
4336 fi
4337
4338 case $target_os in
4339     osf1)
4340         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4341     ;;
4342     plan9)
4343         add_cppflags -Dmain=plan9_main
4344     ;;
4345 esac
4346
4347 enable frame_thread_encoder
4348 enabled_any $THREADS_LIST      && enable threads
4349 enabled_any $ATOMICS_LIST      && enable atomics_native
4350
4351 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4352
4353 check_deps $CONFIG_LIST       \
4354            $CONFIG_EXTRA      \
4355            $HAVE_LIST         \
4356            $ALL_COMPONENTS    \
4357
4358
4359 if test $target_os = "haiku"; then
4360     disable memalign
4361     disable posix_memalign
4362 fi
4363
4364 ! enabled_any memalign posix_memalign aligned_malloc &&
4365     enabled_any $need_memalign && enable memalign_hack
4366
4367 # add_dep lib dep
4368 # -> enable ${lib}_deps_${dep}
4369 # -> add $dep to ${lib}_deps only once
4370 add_dep() {
4371     lib=$1
4372     dep=$2
4373     enabled "${lib}_deps_${dep}" && return 0
4374     enable  "${lib}_deps_${dep}"
4375     prepend "${lib}_deps" $dep
4376 }
4377
4378 # merge deps lib components
4379 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4380 merge_deps() {
4381     lib=$1
4382     shift
4383     for comp in $*; do
4384         enabled $comp || continue
4385         eval "dep=\"\$${comp}_deps\""
4386         for d in $dep; do
4387             add_dep $lib $d
4388         done
4389     done
4390 }
4391
4392 merge_deps libavfilter $FILTER_LIST
4393
4394 echo "install prefix            $prefix"
4395 echo "source path               $source_path"
4396 echo "C compiler                $cc"
4397 echo "ARCH                      $arch ($cpu)"
4398 if test "$build_suffix" != ""; then
4399     echo "build suffix              $build_suffix"
4400 fi
4401 if test "$progs_suffix" != ""; then
4402     echo "progs suffix              $progs_suffix"
4403 fi
4404 if test "$extra_version" != ""; then
4405     echo "version string suffix     $extra_version"
4406 fi
4407 echo "big-endian                ${bigendian-no}"
4408 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4409 if enabled x86; then
4410     echo "${yasmexe}                      ${yasm-no}"
4411     echo "MMX enabled               ${mmx-no}"
4412     echo "MMXEXT enabled            ${mmxext-no}"
4413     echo "3DNow! enabled            ${amd3dnow-no}"
4414     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4415     echo "SSE enabled               ${sse-no}"
4416     echo "SSSE3 enabled             ${ssse3-no}"
4417     echo "AVX enabled               ${avx-no}"
4418     echo "FMA4 enabled              ${fma4-no}"
4419     echo "i686 features enabled     ${i686-no}"
4420     echo "CMOV is fast              ${fast_cmov-no}"
4421     echo "EBX available             ${ebx_available-no}"
4422     echo "EBP available             ${ebp_available-no}"
4423 fi
4424 if enabled arm; then
4425     echo "ARMv5TE enabled           ${armv5te-no}"
4426     echo "ARMv6 enabled             ${armv6-no}"
4427     echo "ARMv6T2 enabled           ${armv6t2-no}"
4428     echo "VFP enabled               ${vfp-no}"
4429     echo "NEON enabled              ${neon-no}"
4430     echo "THUMB enabled             ${thumb-no}"
4431 fi
4432 if enabled mips; then
4433     echo "MIPS FPU enabled          ${mipsfpu-no}"
4434     echo "MIPS32R2 enabled          ${mips32r2-no}"
4435     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4436     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4437 fi
4438 if enabled ppc; then
4439     echo "AltiVec enabled           ${altivec-no}"
4440     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4441     echo "dcbzl available           ${dcbzl-no}"
4442 fi
4443 if enabled sparc; then
4444     echo "VIS enabled               ${vis-no}"
4445 fi
4446 echo "debug symbols             ${debug-no}"
4447 echo "strip symbols             ${stripping-no}"
4448 echo "optimize for size         ${small-no}"
4449 echo "optimizations             ${optimizations-no}"
4450 echo "static                    ${static-no}"
4451 echo "shared                    ${shared-no}"
4452 echo "postprocessing support    ${postproc-no}"
4453 echo "new filter support        ${avfilter-no}"
4454 echo "network support           ${network-no}"
4455 echo "threading support         ${thread_type-no}"
4456 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4457 echo "SDL support               ${sdl-no}"
4458 echo "opencl enabled            ${opencl-no}"
4459 echo "libshine enabled          ${libshine-no}"
4460 echo "texi2html enabled         ${texi2html-no}"
4461 echo "perl enabled              ${perl-no}"
4462 echo "pod2man enabled           ${pod2man-no}"
4463 echo "makeinfo enabled          ${makeinfo-no}"
4464 test -n "$random_seed" &&
4465     echo "random seed               ${random_seed}"
4466 echo
4467
4468 echo "External libraries:"
4469 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4470 echo
4471
4472 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4473     echo "Enabled ${type}s:"
4474     eval list=\$$(toupper $type)_LIST
4475     print_enabled '_*' $list | print_3_columns
4476     echo
4477 done
4478
4479 license="LGPL version 2.1 or later"
4480 if enabled nonfree; then
4481     license="nonfree and unredistributable"
4482 elif enabled gplv3; then
4483     license="GPL version 3 or later"
4484 elif enabled lgplv3; then
4485     license="LGPL version 3 or later"
4486 elif enabled gpl; then
4487     license="GPL version 2 or later"
4488 fi
4489
4490 echo "License: $license"
4491
4492 echo "Creating config.mak, config.h, and doc/config.texi..."
4493
4494 test -e Makefile || $ln_s "$source_path/Makefile" .
4495
4496 enabled stripping || strip="echo skipping strip"
4497
4498 config_files="$TMPH config.mak doc/config.texi"
4499
4500 cat > config.mak <<EOF
4501 # Automatically generated by configure - do not modify!
4502 ifndef FFMPEG_CONFIG_MAK
4503 FFMPEG_CONFIG_MAK=1
4504 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4505 prefix=$prefix
4506 LIBDIR=\$(DESTDIR)$libdir
4507 SHLIBDIR=\$(DESTDIR)$shlibdir
4508 INCDIR=\$(DESTDIR)$incdir
4509 BINDIR=\$(DESTDIR)$bindir
4510 DATADIR=\$(DESTDIR)$datadir
4511 MANDIR=\$(DESTDIR)$mandir
4512 SRC_PATH=$source_path
4513 ifndef MAIN_MAKEFILE
4514 SRC_PATH:=\$(SRC_PATH:.%=..%)
4515 endif
4516 CC_IDENT=$cc_ident
4517 ARCH=$arch
4518 CC=$cc
4519 CXX=$cxx
4520 AS=$as
4521 LD=$ld
4522 DEPCC=$dep_cc
4523 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4524 DEPAS=$as
4525 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4526 YASM=$yasmexe
4527 DEPYASM=$yasmexe
4528 AR=$ar
4529 ARFLAGS=$arflags
4530 AR_O=$ar_o
4531 RANLIB=$ranlib
4532 CP=cp -p
4533 LN_S=$ln_s
4534 STRIP=$strip
4535 CPPFLAGS=$CPPFLAGS
4536 CFLAGS=$CFLAGS
4537 CXXFLAGS=$CXXFLAGS
4538 ASFLAGS=$ASFLAGS
4539 AS_C=$AS_C
4540 AS_O=$AS_O
4541 CC_C=$CC_C
4542 CC_E=$CC_E
4543 CC_O=$CC_O
4544 CXX_C=$CXX_C
4545 CXX_O=$CXX_O
4546 LD_O=$LD_O
4547 LD_LIB=$LD_LIB
4548 LD_PATH=$LD_PATH
4549 DLLTOOL=$dlltool
4550 LDFLAGS=$LDFLAGS
4551 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4552 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4553 YASMFLAGS=$YASMFLAGS
4554 BUILDSUF=$build_suffix
4555 PROGSSUF=$progs_suffix
4556 FULLNAME=$FULLNAME
4557 LIBPREF=$LIBPREF
4558 LIBSUF=$LIBSUF
4559 LIBNAME=$LIBNAME
4560 SLIBPREF=$SLIBPREF
4561 SLIBSUF=$SLIBSUF
4562 EXESUF=$EXESUF
4563 EXTRA_VERSION=$extra_version
4564 CCDEP=$CCDEP
4565 CXXDEP=$CXXDEP
4566 CCDEP_FLAGS=$CCDEP_FLAGS
4567 ASDEP=$ASDEP
4568 ASDEP_FLAGS=$ASDEP_FLAGS
4569 CC_DEPFLAGS=$CC_DEPFLAGS
4570 AS_DEPFLAGS=$AS_DEPFLAGS
4571 HOSTCC=$host_cc
4572 HOSTLD=$host_ld
4573 HOSTCFLAGS=$host_cflags
4574 HOSTCPPFLAGS=$host_cppflags
4575 HOSTEXESUF=$HOSTEXESUF
4576 HOSTLDFLAGS=$host_ldflags
4577 HOSTLIBS=$host_libs
4578 DEPHOSTCC=$host_cc
4579 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4580 HOSTCCDEP=$HOSTCCDEP
4581 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4582 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4583 HOSTCC_C=$HOSTCC_C
4584 HOSTCC_O=$HOSTCC_O
4585 HOSTLD_O=$HOSTLD_O
4586 TARGET_EXEC=$target_exec $target_exec_args
4587 TARGET_PATH=$target_path
4588 LIBS-ffplay=$sdl_libs
4589 CFLAGS-ffplay=$sdl_cflags
4590 ZLIB=$($ldflags_filter -lz)
4591 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4592 EXTRALIBS=$extralibs
4593 COMPAT_OBJS=$compat_objs
4594 EXEOBJS=$exeobjs
4595 INSTALL=$install
4596 LIBTARGET=${LIBTARGET}
4597 SLIBNAME=${SLIBNAME}
4598 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4599 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4600 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4601 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4602 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4603 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4604 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4605 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4606 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4607 NOREDZONE_FLAGS=$noredzone_flags
4608 EOF
4609
4610 get_version(){
4611     lcname=lib${1}
4612     name=$(toupper $lcname)
4613     file=$source_path/$lcname/version.h
4614     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4615     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4616     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4617     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4618     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4619 }
4620
4621 map 'get_version $v' $LIBRARY_LIST
4622
4623 cat > $TMPH <<EOF
4624 /* Automatically generated by configure - do not modify! */
4625 #ifndef FFMPEG_CONFIG_H
4626 #define FFMPEG_CONFIG_H
4627 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4628 #define FFMPEG_LICENSE "$(c_escape $license)"
4629 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4630 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4631 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4632 #define av_restrict $_restrict
4633 #define EXTERN_PREFIX "${extern_prefix}"
4634 #define EXTERN_ASM ${extern_prefix}
4635 #define SLIBSUF "$SLIBSUF"
4636 #define HAVE_MMX2 HAVE_MMXEXT
4637 EOF
4638
4639 test -n "$assert_level" &&
4640     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4641
4642 test -n "$malloc_prefix" &&
4643     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4644
4645 if enabled yasm; then
4646     append config_files $TMPASM
4647     printf '' >$TMPASM
4648 fi
4649
4650 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4651
4652
4653 mkdir -p doc
4654 echo "@c auto-generated by configure" > doc/config.texi
4655
4656 print_config ARCH_   "$config_files" $ARCH_LIST
4657 print_config HAVE_   "$config_files" $HAVE_LIST
4658 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4659                                      $CONFIG_EXTRA      \
4660                                      $ALL_COMPONENTS    \
4661
4662 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4663 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4664
4665 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4666 cp_if_changed $TMPH config.h
4667 touch .config
4668
4669 enabled yasm && cp_if_changed $TMPASM config.asm
4670
4671 cat > $TMPH <<EOF
4672 /* Generated by ffconf */
4673 #ifndef AVUTIL_AVCONFIG_H
4674 #define AVUTIL_AVCONFIG_H
4675 EOF
4676
4677 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4678
4679 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4680
4681 cp_if_changed $TMPH libavutil/avconfig.h
4682
4683 if test -n "$WARNINGS"; then
4684     printf "\n$WARNINGS"
4685     enabled fatal_warnings && exit 1
4686 fi
4687
4688 # build pkg-config files
4689
4690 pkgconfig_generate(){
4691     name=$1
4692     shortname=${name#lib}${build_suffix}
4693     comment=$2
4694     version=$3
4695     libs=$4
4696     requires=$5
4697     enabled ${name#lib} || return 0
4698     mkdir -p $name
4699     cat <<EOF > $name/$name${build_suffix}.pc
4700 prefix=$prefix
4701 exec_prefix=\${prefix}
4702 libdir=$libdir
4703 includedir=$incdir
4704
4705 Name: $name
4706 Description: $comment
4707 Version: $version
4708 Requires: $(enabled shared || echo $requires)
4709 Requires.private: $(enabled shared && echo $requires)
4710 Conflicts:
4711 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4712 Libs.private: $(enabled shared && echo $libs)
4713 Cflags: -I\${includedir}
4714 EOF
4715
4716 mkdir -p doc/examples/pc-uninstalled
4717 includedir=${source_path}
4718 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4719     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4720 prefix=
4721 exec_prefix=
4722 libdir=\${pcfiledir}/../../../$name
4723 includedir=${includedir}
4724
4725 Name: $name
4726 Description: $comment
4727 Version: $version
4728 Requires: $requires
4729 Conflicts:
4730 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4731 Cflags: -I\${includedir}
4732 EOF
4733 }
4734
4735 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4736 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4737 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4738 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4739 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4740 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4741 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4742 lavfi_libs=${lavfi_libs%, }
4743
4744 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4745 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4746
4747 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4748 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4749 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4750 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$lavd_libs"
4751 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4752 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4753 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4754 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4755 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4756
4757 fix_ffmpeg_remote(){
4758     git_remote_from=$1
4759     git_remote_to=$2
4760     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4761     if [ "$fixme_remote" != "" ]; then
4762         echolog "
4763 Outdated domain in git config, the official domain for ffmpeg git is since
4764 November 2011, source.ffmpeg.org, both the old and the new point to the same
4765 repository and server. To update it enter the following commands:
4766 "
4767         for remote in $fixme_remote; do
4768             echolog "git remote set-url $remote $git_remote_to"
4769         done
4770     fi
4771 }
4772
4773 if test -f "$source_path/.git/config"; then
4774     remote_from=git.videolan.org
4775     remote_to=source.ffmpeg.org
4776     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4777     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4778 fi