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 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-avconv         disable avconv build
  85   --disable-ffplay         disable ffplay build
  86   --disable-ffprobe        disable ffprobe build
  87   --disable-ffserver       disable ffserver build
  88   --disable-avdevice       disable libavdevice build
  89   --disable-avcodec        disable libavcodec build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --disable-postproc       disable libpostproc build
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --enable-vaapi           enable VAAPI code [autodetect]
 111   --enable-vdpau           enable VDPAU code [autodetect]
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 165   --enable-frei0r          enable frei0r video filtering
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfreetype     enable libfreetype [no]
 174   --enable-libgsm          enable GSM support via libgsm [no]
 175   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 176   --enable-libnut          enable NUT (de)muxing via libnut,
 177                            native (de)muxer exists [no]
 178   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 179   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 181   --enable-libspeex        enable Speex decoding via libspeex [no]
 182   --enable-libtheora       enable Theora encoding via libtheora [no]
 183   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 184   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 185   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 186                            native implementation exists [no]
 187   --enable-libvpx          enable VP8 support via libvpx [no]
 188   --enable-libx264         enable H.264 encoding via x264 [no]
 189   --enable-libxavs         enable AVS encoding via xavs [no]
 190   --enable-libxvid         enable Xvid encoding via xvidcore,
 191                            native MPEG-4/Xvid encoder exists [no]
 192   --enable-openal          enable OpenAL 1.1 capture support [no]
 193   --enable-mlib            enable Sun medialib [no]
 194   --enable-zlib            enable zlib [autodetect]
 195
 196 Advanced options (experts only):
 197   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 198   --enable-cross-compile   assume a cross-compiler is used
 199   --sysroot=PATH           root of cross-build tree
 200   --sysinclude=PATH        location of cross-build system headers
 201   --target-os=OS           compiler targets OS [$target_os]
 202   --target-exec=CMD        command to run executables on target
 203   --target-path=DIR        path to view of build directory on target
 204   --nm=NM                  use nm tool
 205   --ar=AR                  use archive tool AR [$ar_default]
 206   --as=AS                  use assembler AS [$as_default]
 207   --cc=CC                  use C compiler CC [$cc_default]
 208   --ld=LD                  use linker LD
 209   --host-cc=HOSTCC         use host C compiler HOSTCC
 210   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 211   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 212   --host-libs=HLIBS        use libs HLIBS when linking for host
 213   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 214   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 215   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 216   --extra-version=STRING   version string suffix []
 217   --build-suffix=SUFFIX    library name suffix []
 218   --progs-suffix=SUFFIX    program name suffix []
 219   --arch=ARCH              select architecture [$arch]
 220   --cpu=CPU                select the minimum required CPU (affects
 221                            instruction selection, may crash on older CPUs)
 222   --disable-asm            disable all assembler optimizations
 223   --disable-altivec        disable AltiVec optimizations
 224   --disable-amd3dnow       disable 3DNow! optimizations
 225   --disable-amd3dnowext    disable 3DNow! extended optimizations
 226   --disable-mmx            disable MMX optimizations
 227   --disable-mmx2           disable MMX2 optimizations
 228   --disable-sse            disable SSE optimizations
 229   --disable-ssse3          disable SSSE3 optimizations
 230   --disable-avx            disable AVX optimizations
 231   --disable-armv5te        disable armv5te optimizations
 232   --disable-armv6          disable armv6 optimizations
 233   --disable-armv6t2        disable armv6t2 optimizations
 234   --disable-armvfp         disable ARM VFP optimizations
 235   --disable-iwmmxt         disable iwmmxt optimizations
 236   --disable-mmi            disable MMI optimizations
 237   --disable-neon           disable neon optimizations
 238   --disable-vis            disable VIS optimizations
 239   --disable-yasm           disable use of yasm assembler
 240   --enable-pic             build position-independent code
 241   --malloc-prefix=PFX      prefix malloc and related names with PFX
 242   --enable-sram            allow use of on-chip SRAM
 243   --disable-symver         disable symbol versioning
 244   --optflags               override optimization-related compiler flags
 245
 246 Developer options (useful when working on FFmpeg itself):
 247   --disable-debug          disable debugging symbols
 248   --enable-debug=LEVEL     set the debug level [$debuglevel]
 249   --disable-optimizations  disable compiler optimizations
 250   --enable-extra-warnings  enable more compiler warnings
 251   --disable-stripping      disable stripping of executables and shared libraries
 252   --samples=PATH           location of test samples for FATE, if not set use
 253                            \$FATE_SAMPLES at make invocation time.
 254
 255 NOTE: Object files are built at the place where configure is launched.
 256 EOF
 257   exit 0
 258 }
 259
 260 quotes='""'
 261
 262 log(){
 263     echo "$@" >> $logfile
 264 }
 265
 266 log_file(){
 267     log BEGIN $1
 268     pr -n -t $1 >> $logfile
 269     log END $1
 270 }
 271
 272 echolog(){
 273     log "$@"
 274     echo "$@"
 275 }
 276
 277 warn(){
 278     log "WARNING: $*"
 279     WARNINGS="${WARNINGS}WARNING: $*\n"
 280 }
 281
 282 die(){
 283     echolog "$@"
 284     cat <<EOF
 285
 286 If you think configure made a mistake, make sure you are using the latest
 287 version from Git.  If the latest version fails, report the problem to the
 288 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 289 EOF
 290     if disabled logging; then
 291         cat <<EOF
 292 Rerun configure with logging enabled (do not use --disable-logging), and
 293 include the log this produces with your report.
 294 EOF
 295     else
 296 cat <<EOF
 297 Include the log file "$logfile" produced by configure as this will help
 298 solving the problem.
 299 EOF
 300     fi
 301     exit 1
 302 }
 303
 304 # Avoid locale weirdness, besides we really just want to translate ASCII.
 305 toupper(){
 306     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 307 }
 308
 309 tolower(){
 310     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 311 }
 312
 313 c_escape(){
 314     echo "$*" | sed 's/["\\]/\\\0/g'
 315 }
 316
 317 sh_quote(){
 318     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 319     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 320     echo "$v"
 321 }
 322
 323 cleanws(){
 324     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 325 }
 326
 327 filter(){
 328     pat=$1
 329     shift
 330     for v; do
 331         eval "case $v in $pat) echo $v ;; esac"
 332     done
 333 }
 334
 335 filter_out(){
 336     pat=$1
 337     shift
 338     for v; do
 339         eval "case $v in $pat) ;; *) echo $v ;; esac"
 340     done
 341 }
 342
 343 map(){
 344     m=$1
 345     shift
 346     for v; do eval $m; done
 347 }
 348
 349 set_all(){
 350     value=$1
 351     shift
 352     for var in $*; do
 353         eval $var=$value
 354     done
 355 }
 356
 357 set_weak(){
 358     value=$1
 359     shift
 360     for var; do
 361         eval : \${$var:=$value}
 362     done
 363 }
 364
 365 set_safe(){
 366     var=$1
 367     shift
 368     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 369 }
 370
 371 get_safe(){
 372     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 373 }
 374
 375 pushvar(){
 376     for var in $*; do
 377         eval level=\${${var}_level:=0}
 378         eval ${var}_${level}="\$$var"
 379         eval ${var}_level=$(($level+1))
 380     done
 381 }
 382
 383 popvar(){
 384     for var in $*; do
 385         eval level=\${${var}_level:-0}
 386         test $level = 0 && continue
 387         eval level=$(($level-1))
 388         eval $var="\${${var}_${level}}"
 389         eval ${var}_level=$level
 390         eval unset ${var}_${level}
 391     done
 392 }
 393
 394 enable(){
 395     set_all yes $*
 396 }
 397
 398 disable(){
 399     set_all no $*
 400 }
 401
 402 enable_weak(){
 403     set_weak yes $*
 404 }
 405
 406 disable_weak(){
 407     set_weak no $*
 408 }
 409
 410 enable_safe(){
 411     for var; do
 412         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 413     done
 414 }
 415
 416 disable_safe(){
 417     for var; do
 418         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 419     done
 420 }
 421
 422 do_enable_deep(){
 423     for var; do
 424         enabled $var && continue
 425         eval sel="\$${var}_select"
 426         eval sgs="\$${var}_suggest"
 427         pushvar var sgs
 428         enable_deep $sel
 429         popvar sgs
 430         enable_deep_weak $sgs
 431         popvar var
 432     done
 433 }
 434
 435 enable_deep(){
 436     do_enable_deep $*
 437     enable $*
 438 }
 439
 440 enable_deep_weak(){
 441     do_enable_deep $*
 442     enable_weak $*
 443 }
 444
 445 enabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xyes"
 448 }
 449
 450 disabled(){
 451     test "${1#!}" = "$1" && op== || op=!=
 452     eval test "x\$${1#!}" $op "xno"
 453 }
 454
 455 enabled_all(){
 456     for opt; do
 457         enabled $opt || return 1
 458     done
 459 }
 460
 461 disabled_all(){
 462     for opt; do
 463         disabled $opt || return 1
 464     done
 465 }
 466
 467 enabled_any(){
 468     for opt; do
 469         enabled $opt && return 0
 470     done
 471 }
 472
 473 disabled_any(){
 474     for opt; do
 475         disabled $opt && return 0
 476     done
 477     return 1
 478 }
 479
 480 set_default(){
 481     for opt; do
 482         eval : \${$opt:=\$${opt}_default}
 483     done
 484 }
 485
 486 is_in(){
 487     value=$1
 488     shift
 489     for var in $*; do
 490         [ $var = $value ] && return 0
 491     done
 492     return 1
 493 }
 494
 495 check_deps(){
 496     for cfg; do
 497         cfg="${cfg#!}"
 498         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 499         disabled ${cfg}_checking && continue
 500         enable ${cfg}_checking
 501
 502         eval dep_all="\$${cfg}_deps"
 503         eval dep_any="\$${cfg}_deps_any"
 504         eval dep_sel="\$${cfg}_select"
 505         eval dep_sgs="\$${cfg}_suggest"
 506         eval dep_ifa="\$${cfg}_if"
 507         eval dep_ifn="\$${cfg}_if_any"
 508
 509         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 510         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 511         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 512
 513         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 514         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 515         enabled_all  $dep_all || disable $cfg
 516         enabled_any  $dep_any || disable $cfg
 517         disabled_any $dep_sel && disable $cfg
 518
 519         if enabled $cfg; then
 520             eval dep_extralibs="\$${cfg}_extralibs"
 521             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 522             enable_deep $dep_sel
 523             enable_deep_weak $dep_sgs
 524         fi
 525
 526         disable ${cfg}_checking
 527     done
 528 }
 529
 530 print_config_h(){
 531     enabled $1 && v=1 || v=0
 532     echo "#define $2 $v"
 533 }
 534
 535 print_config_mak(){
 536     enabled $1 && v= || v=!
 537     echo "$v$2=yes"
 538 }
 539
 540 print_config_asm(){
 541     enabled $1 && echo "%define $2"
 542 }
 543
 544 print_config(){
 545     pfx=$1
 546     files=$2
 547     shift 2
 548     for cfg; do
 549         ucname="$(toupper $cfg)"
 550         for f in $files; do
 551             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 552         done
 553     done
 554 }
 555
 556 print_enabled(){
 557     test "$1" = -n && end=" " && shift || end="\n"
 558     suf=$1
 559     shift
 560     for v; do
 561         enabled $v && printf "%s$end" ${v%$suf};
 562     done
 563 }
 564
 565 append(){
 566     var=$1
 567     shift
 568     eval "$var=\"\$$var $*\""
 569 }
 570
 571 prepend(){
 572     var=$1
 573     shift
 574     eval "$var=\"$* \$$var\""
 575 }
 576
 577 add_cppflags(){
 578     append CPPFLAGS $($filter_cppflags "$@")
 579 }
 580
 581 add_cflags(){
 582     append CFLAGS $($filter_cflags "$@")
 583 }
 584
 585 add_asflags(){
 586     append ASFLAGS $($filter_asflags "$@")
 587 }
 588
 589 add_ldflags(){
 590     append LDFLAGS "$@"
 591 }
 592
 593 add_extralibs(){
 594     prepend extralibs "$@"
 595 }
 596
 597 check_cmd(){
 598     log "$@"
 599     "$@" >> $logfile 2>&1
 600 }
 601
 602 check_cc(){
 603     log check_cc "$@"
 604     cat > $TMPC
 605     log_file $TMPC
 606     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 607 }
 608
 609 check_cpp(){
 610     log check_cpp "$@"
 611     cat > $TMPC
 612     log_file $TMPC
 613     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 614 }
 615
 616 check_as(){
 617     log check_as "$@"
 618     cat > $TMPC
 619     log_file $TMPC
 620     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 621 }
 622
 623 check_asm(){
 624     log check_asm "$@"
 625     name="$1"
 626     code="$2"
 627     shift 2
 628     disable $name
 629     check_as "$@" <<EOF && enable $name
 630 void foo(void){ __asm__ volatile($code); }
 631 EOF
 632 }
 633
 634 check_yasm(){
 635     log check_yasm "$@"
 636     echo "$1" > $TMPS
 637     log_file $TMPS
 638     shift 1
 639     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 640 }
 641
 642 check_ld(){
 643     log check_ld "$@"
 644     flags=''
 645     libs=''
 646     for f; do
 647         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 648     done
 649     check_cc $($filter_cflags $flags) || return
 650     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 651 }
 652
 653 check_cppflags(){
 654     log check_cppflags "$@"
 655     set -- $($filter_cppflags "$@")
 656     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 657 int x;
 658 EOF
 659 }
 660
 661 check_cflags(){
 662     log check_cflags "$@"
 663     set -- $($filter_cflags "$@")
 664     check_cc "$@" <<EOF && append CFLAGS "$@"
 665 int x;
 666 EOF
 667 }
 668
 669 test_ldflags(){
 670     log test_ldflags "$@"
 671     check_ld "$@" <<EOF
 672 int main(void){ return 0; }
 673 EOF
 674 }
 675
 676 check_ldflags(){
 677     log check_ldflags "$@"
 678     test_ldflags "$@" && add_ldflags "$@"
 679 }
 680
 681 check_header(){
 682     log check_header "$@"
 683     header=$1
 684     shift
 685     disable_safe $header
 686     check_cpp "$@" <<EOF && enable_safe $header
 687 #include <$header>
 688 int x;
 689 EOF
 690 }
 691
 692 check_func(){
 693     log check_func "$@"
 694     func=$1
 695     shift
 696     disable $func
 697     check_ld "$@" <<EOF && enable $func
 698 extern int $func();
 699 int main(void){ $func(); }
 700 EOF
 701 }
 702
 703 check_mathfunc(){
 704     log check_mathfunc "$@"
 705     func=$1
 706     shift
 707     disable $func
 708     check_ld "$@" <<EOF && enable $func
 709 #include <math.h>
 710 float foo(float f) { return $func(f); }
 711 int main(void){ return 0; }
 712 EOF
 713 }
 714
 715 check_func_headers(){
 716     log check_func_headers "$@"
 717     headers=$1
 718     funcs=$2
 719     shift 2
 720     {
 721         for hdr in $headers; do
 722             echo "#include <$hdr>"
 723         done
 724         for func in $funcs; do
 725             echo "long check_$func(void) { return (long) $func; }"
 726         done
 727         echo "int main(void) { return 0; }"
 728     } | check_ld "$@" && enable $funcs && enable_safe $headers
 729 }
 730
 731 check_cpp_condition(){
 732     log check_cpp_condition "$@"
 733     header=$1
 734     condition=$2
 735     shift 2
 736     check_cpp $($filter_cppflags "$@") <<EOF
 737 #include <$header>
 738 #if !($condition)
 739 #error "unsatisfied condition: $condition"
 740 #endif
 741 EOF
 742 }
 743
 744 check_lib(){
 745     log check_lib "$@"
 746     header="$1"
 747     func="$2"
 748     shift 2
 749     check_header $header && check_func $func "$@" && add_extralibs "$@"
 750 }
 751
 752 check_lib2(){
 753     log check_lib2 "$@"
 754     headers="$1"
 755     funcs="$2"
 756     shift 2
 757     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 758 }
 759
 760 check_pkg_config(){
 761     log check_pkg_config "$@"
 762     pkg="$1"
 763     headers="$2"
 764     funcs="$3"
 765     shift 3
 766     $pkg_config --exists $pkg 2>/dev/null || return
 767     pkg_cflags=$($pkg_config --cflags $pkg)
 768     pkg_libs=$($pkg_config --libs $pkg)
 769     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 770         set_safe ${pkg}_cflags $pkg_cflags   &&
 771         set_safe ${pkg}_libs   $pkg_libs
 772 }
 773
 774 check_exec(){
 775     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 776 }
 777
 778 check_exec_crash(){
 779     code=$(cat)
 780
 781     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 782     # are safe but may not be available everywhere.  Thus we use
 783     # raise(SIGTERM) instead.  The check is run in a subshell so we
 784     # can redirect the "Terminated" message from the shell.  SIGBUS
 785     # is not defined by standard C so it is used conditionally.
 786
 787     (check_exec "$@") >> $logfile 2>&1 <<EOF
 788 #include <signal.h>
 789 static void sighandler(int sig){
 790     raise(SIGTERM);
 791 }
 792 int main(void){
 793     signal(SIGILL, sighandler);
 794     signal(SIGFPE, sighandler);
 795     signal(SIGSEGV, sighandler);
 796 #ifdef SIGBUS
 797     signal(SIGBUS, sighandler);
 798 #endif
 799     { $code }
 800 }
 801 EOF
 802 }
 803
 804 check_type(){
 805     log check_type "$@"
 806     headers=$1
 807     type=$2
 808     shift 2
 809     disable_safe "$type"
 810     incs=""
 811     for hdr in $headers; do
 812         incs="$incs
 813 #include <$hdr>"
 814     done
 815     check_cc "$@" <<EOF && enable_safe "$type"
 816 $incs
 817 $type v;
 818 EOF
 819 }
 820
 821 check_struct(){
 822     log check_type "$@"
 823     headers=$1
 824     struct=$2
 825     member=$3
 826     shift 3
 827     disable_safe "${struct}_${member}"
 828     incs=""
 829     for hdr in $headers; do
 830         incs="$incs
 831 #include <$hdr>"
 832     done
 833     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 834 $incs
 835 const void *p = &(($struct *)0)->$member;
 836 EOF
 837 }
 838
 839 require(){
 840     name="$1"
 841     header="$2"
 842     func="$3"
 843     shift 3
 844     check_lib $header $func "$@" || die "ERROR: $name not found"
 845 }
 846
 847 require2(){
 848     name="$1"
 849     headers="$2"
 850     func="$3"
 851     shift 3
 852     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 853 }
 854
 855 require_pkg_config(){
 856     pkg="$1"
 857     check_pkg_config "$@" || die "ERROR: $pkg not found"
 858     add_cflags    $(get_safe ${pkg}_cflags)
 859     add_extralibs $(get_safe ${pkg}_libs)
 860 }
 861
 862 check_host_cc(){
 863     log check_host_cc "$@"
 864     cat > $TMPC
 865     log_file $TMPC
 866     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 867 }
 868
 869 check_host_cflags(){
 870     log check_host_cflags "$@"
 871     check_host_cc "$@" <<EOF && append host_cflags "$@"
 872 int x;
 873 EOF
 874 }
 875
 876 apply(){
 877     file=$1
 878     shift
 879     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 880 }
 881
 882 cp_if_changed(){
 883     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 884     mkdir -p "$(dirname $2)"
 885     cp -f "$1" "$2"
 886 }
 887
 888 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 889 # system-dependent things.
 890
 891 COMPONENT_LIST="
 892     bsfs
 893     decoders
 894     demuxers
 895     encoders
 896     filters
 897     hwaccels
 898     indevs
 899     muxers
 900     outdevs
 901     parsers
 902     protocols
 903 "
 904
 905 CONFIG_LIST="
 906     $COMPONENT_LIST
 907     aandct
 908     ac3dsp
 909     avcodec
 910     avdevice
 911     avfilter
 912     avformat
 913     avisynth
 914     bzlib
 915     crystalhd
 916     dct
 917     doc
 918     dwt
 919     dxva2
 920     fastdiv
 921     ffmpeg
 922     avconv
 923     ffplay
 924     ffprobe
 925     ffserver
 926     fft
 927     frei0r
 928     golomb
 929     gpl
 930     gray
 931     h264dsp
 932     h264pred
 933     hardcoded_tables
 934     huffman
 935     libcelt
 936     libdc1394
 937     libdirac
 938     libfaac
 939     libfreetype
 940     libgsm
 941     libmp3lame
 942     libnut
 943     libopencore_amrnb
 944     libopencore_amrwb
 945     libopencv
 946     libopenjpeg
 947     librtmp
 948     libschroedinger
 949     libspeex
 950     libtheora
 951     libvo_aacenc
 952     libvo_amrwbenc
 953     libvorbis
 954     libvpx
 955     libx264
 956     libxavs
 957     libxvid
 958     lpc
 959     lsp
 960     mdct
 961     memalign_hack
 962     mlib
 963     mpegaudiodsp
 964     network
 965     nonfree
 966     openal
 967     pic
 968     postproc
 969     rdft
 970     rtpdec
 971     runtime_cpudetect
 972     shared
 973     sinewin
 974     small
 975     sram
 976     static
 977     swscale
 978     swscale_alpha
 979     thumb
 980     vaapi
 981     vdpau
 982     version3
 983     x11grab
 984     zlib
 985 "
 986
 987 THREADS_LIST='
 988     pthreads
 989     w32threads
 990 '
 991
 992 ARCH_LIST='
 993     alpha
 994     arm
 995     avr32
 996     avr32_ap
 997     avr32_uc
 998     bfin
 999     ia64
1000     m68k
1001     mips
1002     mips64
1003     parisc
1004     ppc
1005     ppc64
1006     s390
1007     sh4
1008     sparc
1009     sparc64
1010     tomi
1011     x86
1012     x86_32
1013     x86_64
1014 '
1015
1016 ARCH_EXT_LIST='
1017     altivec
1018     amd3dnow
1019     amd3dnowext
1020     armv5te
1021     armv6
1022     armv6t2
1023     armvfp
1024     avx
1025     iwmmxt
1026     mmi
1027     mmx
1028     mmx2
1029     neon
1030     ppc4xx
1031     sse
1032     ssse3
1033     vfpv3
1034     vis
1035 '
1036
1037 HAVE_LIST_PUB='
1038     bigendian
1039     fast_unaligned
1040 '
1041
1042 HAVE_LIST="
1043     $ARCH_EXT_LIST
1044     $HAVE_LIST_PUB
1045     $THREADS_LIST
1046     aligned_stack
1047     alsa_asoundlib_h
1048     altivec_h
1049     arpa_inet_h
1050     attribute_may_alias
1051     attribute_packed
1052     bswap
1053     closesocket
1054     cmov
1055     dcbzl
1056     dev_bktr_ioctl_bt848_h
1057     dev_bktr_ioctl_meteor_h
1058     dev_ic_bt8xx_h
1059     dev_video_meteor_ioctl_meteor_h
1060     dev_video_bktr_ioctl_bt848_h
1061     dlfcn_h
1062     dlopen
1063     dos_paths
1064     ebp_available
1065     ebx_available
1066     exp2
1067     exp2f
1068     fast_64bit
1069     fast_clz
1070     fast_cmov
1071     fcntl
1072     fork
1073     getaddrinfo
1074     gethrtime
1075     GetProcessMemoryInfo
1076     GetProcessTimes
1077     getrusage
1078     gnu_as
1079     struct_rusage_ru_maxrss
1080     ibm_asm
1081     inet_aton
1082     inline_asm
1083     isatty
1084     kbhit
1085     ldbrx
1086     llrint
1087     llrintf
1088     local_aligned_16
1089     local_aligned_8
1090     localtime_r
1091     log2
1092     log2f
1093     loongson
1094     lrint
1095     lrintf
1096     lzo1x_999_compress
1097     machine_ioctl_bt848_h
1098     machine_ioctl_meteor_h
1099     malloc_h
1100     MapViewOfFile
1101     memalign
1102     mkstemp
1103     mmap
1104     PeekNamedPipe
1105     posix_memalign
1106     round
1107     roundf
1108     sdl
1109     sdl_video_size
1110     setmode
1111     sndio_h
1112     socklen_t
1113     soundcard_h
1114     poll_h
1115     setrlimit
1116     strerror_r
1117     strptime
1118     strtok_r
1119     struct_addrinfo
1120     struct_ipv6_mreq
1121     struct_sockaddr_in6
1122     struct_sockaddr_sa_len
1123     struct_sockaddr_storage
1124     symver
1125     symver_gnu_asm
1126     symver_asm_label
1127     sys_mman_h
1128     sys_resource_h
1129     sys_select_h
1130     sys_soundcard_h
1131     sys_videoio_h
1132     termios_h
1133     threads
1134     trunc
1135     truncf
1136     vfp_args
1137     VirtualAlloc
1138     winsock2_h
1139     xform_asm
1140     xmm_clobbers
1141     yasm
1142 "
1143
1144 # options emitted with CONFIG_ prefix but not available on command line
1145 CONFIG_EXTRA="
1146     avutil
1147     gplv3
1148     lgplv3
1149 "
1150
1151 CMDLINE_SELECT="
1152     $ARCH_EXT_LIST
1153     $CONFIG_LIST
1154     $THREADS_LIST
1155     asm
1156     cross_compile
1157     debug
1158     extra_warnings
1159     logging
1160     optimizations
1161     stripping
1162     symver
1163     yasm
1164 "
1165
1166 PATHS_LIST='
1167     bindir
1168     datadir
1169     incdir
1170     libdir
1171     mandir
1172     prefix
1173     shlibdir
1174 '
1175
1176 CMDLINE_SET="
1177     $PATHS_LIST
1178     ar
1179     arch
1180     as
1181     build_suffix
1182     progs_suffix
1183     cc
1184     cpu
1185     cross_prefix
1186     dep_cc
1187     extra_version
1188     host_cc
1189     host_cflags
1190     host_ldflags
1191     host_libs
1192     host_os
1193     install
1194     ld
1195     logfile
1196     malloc_prefix
1197     nm
1198     optflags
1199     pkg_config
1200     samples
1201     strip
1202     sysinclude
1203     sysroot
1204     target_exec
1205     target_os
1206     target_path
1207 "
1208
1209 CMDLINE_APPEND="
1210     extra_cflags
1211 "
1212
1213 # code dependency declarations
1214
1215 # architecture extensions
1216
1217 armv5te_deps="arm"
1218 armv6_deps="arm"
1219 armv6t2_deps="arm"
1220 armvfp_deps="arm"
1221 iwmmxt_deps="arm"
1222 neon_deps="arm"
1223 vfpv3_deps="armvfp"
1224
1225 mmi_deps="mips"
1226
1227 altivec_deps="ppc"
1228 ppc4xx_deps="ppc"
1229
1230 vis_deps="sparc"
1231
1232 x86_64_suggest="cmov fast_cmov"
1233 amd3dnow_deps="mmx"
1234 amd3dnowext_deps="amd3dnow"
1235 mmx_deps="x86"
1236 mmx2_deps="mmx"
1237 sse_deps="mmx"
1238 ssse3_deps="sse"
1239 avx_deps="ssse3"
1240
1241 aligned_stack_if_any="ppc x86"
1242 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1243 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1244 fast_unaligned_if_any="armv6 ppc x86"
1245
1246 need_memalign="altivec neon sse"
1247 inline_asm_deps="!tms470"
1248
1249 symver_if_any="symver_asm_label symver_gnu_asm"
1250
1251 # subsystems
1252 dct_select="rdft"
1253 mdct_select="fft"
1254 rdft_select="fft"
1255 mpegaudiodsp_select="dct"
1256
1257 # decoders / encoders / hardware accelerators
1258 aac_decoder_select="mdct sinewin"
1259 aac_encoder_select="mdct sinewin"
1260 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1261 ac3_decoder_select="mdct ac3dsp ac3_parser"
1262 ac3_encoder_select="mdct ac3dsp"
1263 ac3_fixed_encoder_select="mdct ac3dsp"
1264 alac_encoder_select="lpc"
1265 amrnb_decoder_select="lsp"
1266 amrwb_decoder_select="lsp"
1267 atrac1_decoder_select="mdct sinewin"
1268 atrac3_decoder_select="mdct"
1269 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1270 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1271 cavs_decoder_select="golomb"
1272 cook_decoder_select="mdct sinewin"
1273 cscd_decoder_suggest="zlib"
1274 dca_decoder_select="mdct"
1275 dnxhd_encoder_select="aandct"
1276 dxa_decoder_select="zlib"
1277 eac3_decoder_select="ac3_decoder"
1278 eac3_encoder_select="mdct ac3dsp"
1279 eamad_decoder_select="aandct"
1280 eatgq_decoder_select="aandct"
1281 eatqi_decoder_select="aandct"
1282 ffv1_decoder_select="golomb"
1283 flac_decoder_select="golomb"
1284 flac_encoder_select="golomb lpc"
1285 flashsv_decoder_select="zlib"
1286 flashsv_encoder_select="zlib"
1287 flashsv2_encoder_select="zlib"
1288 flashsv2_decoder_select="zlib"
1289 flv_decoder_select="h263_decoder"
1290 flv_encoder_select="h263_encoder"
1291 fraps_decoder_select="huffman"
1292 h261_encoder_select="aandct"
1293 h263_decoder_select="h263_parser"
1294 h263_encoder_select="aandct"
1295 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1296 h263i_decoder_select="h263_decoder"
1297 h263p_encoder_select="h263_encoder"
1298 h264_decoder_select="golomb h264dsp h264pred"
1299 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1300 h264_dxva2_hwaccel_deps="dxva2api_h"
1301 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1302 h264_vaapi_hwaccel_select="vaapi"
1303 h264_vdpau_decoder_select="vdpau h264_decoder"
1304 imc_decoder_select="fft mdct sinewin"
1305 jpegls_decoder_select="golomb"
1306 jpegls_encoder_select="golomb"
1307 ljpeg_encoder_select="aandct"
1308 loco_decoder_select="golomb"
1309 mjpeg_encoder_select="aandct"
1310 mlp_decoder_select="mlp_parser"
1311 mp1_decoder_select="mpegaudiodsp"
1312 mp2_decoder_select="mpegaudiodsp"
1313 mp3adu_decoder_select="mpegaudiodsp"
1314 mp3_decoder_select="mpegaudiodsp"
1315 mp3on4_decoder_select="mpegaudiodsp"
1316 mp1float_decoder_select="mpegaudiodsp"
1317 mp2float_decoder_select="mpegaudiodsp"
1318 mp3adufloat_decoder_select="mpegaudiodsp"
1319 mp3float_decoder_select="mpegaudiodsp"
1320 mp3on4float_decoder_select="mpegaudiodsp"
1321 mpeg1video_encoder_select="aandct"
1322 mpeg2video_encoder_select="aandct"
1323 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1324 mpeg4_encoder_select="h263_encoder"
1325 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1326 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1327 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1328 mpeg2_crystalhd_decoder_select="crystalhd"
1329 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1330 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1331 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1332 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1333 mpeg4_crystalhd_decoder_select="crystalhd"
1334 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1335 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1336 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1337 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1338 msmpeg4_crystalhd_decoder_select="crystalhd"
1339 msmpeg4v1_decoder_select="h263_decoder"
1340 msmpeg4v1_encoder_select="h263_encoder"
1341 msmpeg4v2_decoder_select="h263_decoder"
1342 msmpeg4v2_encoder_select="h263_encoder"
1343 msmpeg4v3_decoder_select="h263_decoder"
1344 msmpeg4v3_encoder_select="h263_encoder"
1345 nellymoser_decoder_select="mdct sinewin"
1346 nellymoser_encoder_select="mdct sinewin"
1347 png_decoder_select="zlib"
1348 png_encoder_select="zlib"
1349 qcelp_decoder_select="lsp"
1350 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1351 ra_144_encoder_select="lpc"
1352 rv10_decoder_select="h263_decoder"
1353 rv10_encoder_select="h263_encoder"
1354 rv20_decoder_select="h263_decoder"
1355 rv20_encoder_select="h263_encoder"
1356 rv30_decoder_select="golomb h264pred"
1357 rv40_decoder_select="golomb h264pred"
1358 shorten_decoder_select="golomb"
1359 sipr_decoder_select="lsp"
1360 snow_decoder_select="dwt"
1361 snow_encoder_select="aandct dwt"
1362 sonic_decoder_select="golomb"
1363 sonic_encoder_select="golomb"
1364 sonic_ls_encoder_select="golomb"
1365 svq1_encoder_select="aandct"
1366 svq3_decoder_select="golomb h264dsp h264pred"
1367 svq3_decoder_suggest="zlib"
1368 theora_decoder_select="vp3_decoder"
1369 tiff_decoder_suggest="zlib"
1370 tiff_encoder_suggest="zlib"
1371 truehd_decoder_select="mlp_decoder"
1372 tscc_decoder_select="zlib"
1373 twinvq_decoder_select="mdct lsp sinewin"
1374 vc1_decoder_select="h263_decoder"
1375 vc1_crystalhd_decoder_select="crystalhd"
1376 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1377 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1378 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1379 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1380 vc1image_decoder_select="vc1_decoder"
1381 vorbis_decoder_select="mdct"
1382 vorbis_encoder_select="mdct"
1383 vp6_decoder_select="huffman"
1384 vp6a_decoder_select="vp6_decoder"
1385 vp6f_decoder_select="vp6_decoder"
1386 vp8_decoder_select="h264pred"
1387 wmapro_decoder_select="mdct sinewin"
1388 wmav1_decoder_select="mdct sinewin"
1389 wmav1_encoder_select="mdct sinewin"
1390 wmav2_decoder_select="mdct sinewin"
1391 wmav2_encoder_select="mdct sinewin"
1392 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1393 wmv1_decoder_select="h263_decoder"
1394 wmv1_encoder_select="h263_encoder"
1395 wmv2_decoder_select="h263_decoder"
1396 wmv2_encoder_select="h263_encoder"
1397 wmv3_decoder_select="vc1_decoder"
1398 wmv3_crystalhd_decoder_select="crystalhd"
1399 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1400 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1401 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1402 wmv3image_decoder_select="wmv3_decoder"
1403 zlib_decoder_select="zlib"
1404 zlib_encoder_select="zlib"
1405 zmbv_decoder_select="zlib"
1406 zmbv_encoder_select="zlib"
1407
1408 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1409 vaapi_deps="va_va_h"
1410 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1411
1412 # parsers
1413 h264_parser_select="golomb h264dsp h264pred"
1414
1415 # external libraries
1416 libcelt_decoder_deps="libcelt"
1417 libdirac_decoder_deps="libdirac !libschroedinger"
1418 libdirac_encoder_deps="libdirac"
1419 libfaac_encoder_deps="libfaac"
1420 libgsm_decoder_deps="libgsm"
1421 libgsm_encoder_deps="libgsm"
1422 libgsm_ms_decoder_deps="libgsm"
1423 libgsm_ms_encoder_deps="libgsm"
1424 libmp3lame_encoder_deps="libmp3lame"
1425 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1426 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1427 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1428 libopenjpeg_decoder_deps="libopenjpeg"
1429 libschroedinger_decoder_deps="libschroedinger"
1430 libschroedinger_encoder_deps="libschroedinger"
1431 libspeex_decoder_deps="libspeex"
1432 libtheora_encoder_deps="libtheora"
1433 libvo_aacenc_encoder_deps="libvo_aacenc"
1434 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1435 libvorbis_encoder_deps="libvorbis"
1436 libvpx_decoder_deps="libvpx"
1437 libvpx_encoder_deps="libvpx"
1438 libx264_encoder_deps="libx264"
1439 libxavs_encoder_deps="libxavs"
1440 libxvid_encoder_deps="libxvid"
1441
1442 # demuxers / muxers
1443 ac3_demuxer_select="ac3_parser"
1444 asf_stream_muxer_select="asf_muxer"
1445 avisynth_demuxer_deps="avisynth"
1446 dirac_demuxer_select="dirac_parser"
1447 eac3_demuxer_select="ac3_parser"
1448 flac_demuxer_select="flac_parser"
1449 ipod_muxer_select="mov_muxer"
1450 libnut_demuxer_deps="libnut"
1451 libnut_muxer_deps="libnut"
1452 matroska_audio_muxer_select="matroska_muxer"
1453 matroska_demuxer_suggest="zlib bzlib"
1454 mov_demuxer_suggest="zlib"
1455 mp3_demuxer_select="mpegaudio_parser"
1456 mp4_muxer_select="mov_muxer"
1457 mpegtsraw_demuxer_select="mpegts_demuxer"
1458 mxf_d10_muxer_select="mxf_muxer"
1459 ogg_demuxer_select="golomb"
1460 psp_muxer_select="mov_muxer"
1461 rtp_demuxer_select="sdp_demuxer"
1462 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1463 rtsp_demuxer_select="http_protocol rtpdec"
1464 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1465 sap_demuxer_select="sdp_demuxer"
1466 sap_muxer_select="rtp_muxer rtp_protocol"
1467 sdp_demuxer_select="rtpdec"
1468 spdif_muxer_select="aac_parser"
1469 tg2_muxer_select="mov_muxer"
1470 tgp_muxer_select="mov_muxer"
1471 w64_demuxer_deps="wav_demuxer"
1472
1473 # indevs / outdevs
1474 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1475 alsa_outdev_deps="alsa_asoundlib_h"
1476 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1477 dshow_indev_deps="IBaseFilter"
1478 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1479 dv1394_indev_deps="dv1394 dv_demuxer"
1480 fbdev_indev_deps="linux_fb_h"
1481 jack_indev_deps="jack_jack_h sem_timedwait"
1482 lavfi_indev_deps="avfilter"
1483 libdc1394_indev_deps="libdc1394"
1484 openal_indev_deps="openal"
1485 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1486 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1487 sdl_outdev_deps="sdl"
1488 sndio_indev_deps="sndio_h"
1489 sndio_outdev_deps="sndio_h"
1490 v4l_indev_deps="linux_videodev_h"
1491 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1492 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1493 vfwcap_indev_extralibs="-lavicap32"
1494 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1495 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1496
1497 # protocols
1498 gopher_protocol_deps="network"
1499 http_protocol_deps="network"
1500 http_protocol_select="tcp_protocol"
1501 mmsh_protocol_select="http_protocol"
1502 mmst_protocol_deps="network"
1503 rtmp_protocol_select="tcp_protocol"
1504 rtp_protocol_select="udp_protocol"
1505 tcp_protocol_deps="network"
1506 udp_protocol_deps="network"
1507
1508 # filters
1509 abuffer_filter_deps="strtok_r"
1510 aformat_filter_deps="strtok_r"
1511 amovie_filter_deps="avcodec avformat"
1512 blackframe_filter_deps="gpl"
1513 boxblur_filter_deps="gpl"
1514 cropdetect_filter_deps="gpl"
1515 delogo_filter_deps="gpl"
1516 drawtext_filter_deps="libfreetype"
1517 frei0r_filter_deps="frei0r dlopen strtok_r"
1518 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1519 hqdn3d_filter_deps="gpl"
1520 movie_filter_deps="avcodec avformat"
1521 mp_filter_deps="gpl avcodec"
1522 mptestsrc_filter_deps="gpl"
1523 negate_filter_deps="lut_filter"
1524 ocv_filter_deps="libopencv"
1525 scale_filter_deps="swscale"
1526 yadif_filter_deps="gpl"
1527
1528 # libraries
1529 avdevice_deps="avcodec avformat"
1530 avformat_deps="avcodec"
1531 postproc_deps="gpl"
1532
1533 # programs
1534 ffmpeg_deps="avcodec avformat swscale"
1535 ffmpeg_select="buffer_filter buffersink_filter"
1536 avconv_deps="avcodec avformat swscale"
1537 avconv_select="buffer_filter"
1538 ffplay_deps="avcodec avformat swscale sdl"
1539 ffplay_select="buffersink_filter rdft"
1540 ffprobe_deps="avcodec avformat"
1541 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1542 ffserver_extralibs='$ldl'
1543
1544 doc_deps="texi2html"
1545
1546 # tests
1547
1548 test_deps(){
1549     suf1=$1
1550     suf2=$2
1551     shift 2
1552     for v; do
1553         dep=${v%=*}
1554         tests=${v#*=}
1555         for name in ${tests}; do
1556             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1557         done
1558     done
1559 }
1560
1561 test_deps _encoder _decoder                                             \
1562     adpcm_g726=g726                                                     \
1563     adpcm_ima_qt                                                        \
1564     adpcm_ima_wav                                                       \
1565     adpcm_ms                                                            \
1566     adpcm_swf                                                           \
1567     adpcm_yamaha=adpcm_yam                                              \
1568     alac                                                                \
1569     asv1                                                                \
1570     asv2                                                                \
1571     bmp                                                                 \
1572     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1573     dvvideo="dv dv50"                                                   \
1574     ffv1                                                                \
1575     flac                                                                \
1576     flashsv                                                             \
1577     flv                                                                 \
1578     gif                                                                 \
1579     h261                                                                \
1580     h263="h263 h263p"                                                   \
1581     huffyuv                                                             \
1582     jpegls                                                              \
1583     mjpeg="jpg mjpeg ljpeg"                                             \
1584     mp2                                                                 \
1585     mpeg1video="mpeg mpeg1b"                                            \
1586     mpeg2video="mpeg2 mpeg2thread"                                      \
1587     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1588     msmpeg4v3=msmpeg4                                                   \
1589     msmpeg4v2                                                           \
1590     pbm=pbmpipe                                                         \
1591     pcx                                                                 \
1592     pgm="pgm pgmpipe"                                                   \
1593     png                                                                 \
1594     ppm="ppm ppmpipe"                                                   \
1595     rawvideo="rgb yuv"                                                  \
1596     roq                                                                 \
1597     rv10                                                                \
1598     rv20                                                                \
1599     sgi                                                                 \
1600     snow="snow snowll"                                                  \
1601     svq1                                                                \
1602     targa=tga                                                           \
1603     tiff                                                                \
1604     wmav1                                                               \
1605     wmav2                                                               \
1606     wmv1                                                                \
1607     wmv2                                                                \
1608
1609 test_deps _muxer _demuxer                                               \
1610     aiff                                                                \
1611     pcm_alaw=alaw                                                       \
1612     asf                                                                 \
1613     au                                                                  \
1614     avi                                                                 \
1615     dv=dv_fmt                                                           \
1616     ffm                                                                 \
1617     flv=flv_fmt                                                         \
1618     gxf                                                                 \
1619     matroska=mkv                                                        \
1620     mmf                                                                 \
1621     mov                                                                 \
1622     pcm_mulaw=mulaw                                                     \
1623     mxf="mxf mxf_d10"                                                   \
1624     nut                                                                 \
1625     ogg                                                                 \
1626     rawvideo=pixfmt                                                     \
1627     rm                                                                  \
1628     swf                                                                 \
1629     mpegts=ts                                                           \
1630     voc                                                                 \
1631     wav                                                                 \
1632     yuv4mpegpipe=yuv4mpeg                                               \
1633
1634 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1635 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1636
1637 # default parameters
1638
1639 logfile="config.log"
1640
1641 # installation paths
1642 prefix_default="/usr/local"
1643 bindir_default='${prefix}/bin'
1644 datadir_default='${prefix}/share/ffmpeg'
1645 incdir_default='${prefix}/include'
1646 libdir_default='${prefix}/lib'
1647 mandir_default='${prefix}/share/man'
1648 shlibdir_default="$libdir_default"
1649
1650 # toolchain
1651 ar_default="ar"
1652 cc_default="gcc"
1653 cc_version=\"unknown\"
1654 host_cc_default="gcc"
1655 install="install"
1656 ln_s="ln -sf"
1657 nm_default="nm"
1658 objformat="elf"
1659 pkg_config_default=pkg-config
1660 ranlib="ranlib"
1661 strip_default="strip"
1662 yasmexe="yasm"
1663 nogas=":"
1664
1665 nm_opts='-g'
1666
1667 # machine
1668 arch_default=$(uname -m)
1669 cpu="generic"
1670
1671 # OS
1672 target_os_default=$(tolower $(uname -s))
1673 host_os=$target_os_default
1674
1675 # configurable options
1676 enable avcodec
1677 enable avdevice
1678 enable avfilter
1679 enable avformat
1680 enable avutil
1681 enable asm
1682 enable debug
1683 enable doc
1684 enable fastdiv
1685 enable ffmpeg
1686 enable avconv
1687 enable ffplay
1688 enable ffprobe
1689 enable ffserver
1690 enable network
1691 enable optimizations
1692 enable postproc
1693 enable protocols
1694 enable static
1695 enable stripping
1696 enable swscale
1697 enable swscale_alpha
1698
1699 # build settings
1700 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1701 FFSERVERLDFLAGS=-Wl,-E
1702 LIBPREF="lib"
1703 LIBSUF=".a"
1704 FULLNAME='$(NAME)$(BUILDSUF)'
1705 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1706 SLIBPREF="lib"
1707 SLIBSUF=".so"
1708 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1709 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1710 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1711 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1712 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1713 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1714
1715 AS_O='-o $@'
1716 CC_O='-o $@'
1717
1718 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1719 host_libs='-lm'
1720
1721 target_path='$(CURDIR)'
1722
1723 # since the object filename is not given with the -MM flag, the compiler
1724 # is only able to print the basename, and we must add the path ourselves
1725 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1726 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1727
1728 # find source path
1729 if test -f configure; then
1730     source_path=.
1731 else
1732     source_path=$(cd $(dirname "$0"); pwd)
1733     echo "$source_path" | grep -q '[[:blank:]]' &&
1734         die "Out of tree builds are impossible with whitespace in source path."
1735     test -e "$source_path/config.h" &&
1736         die "Out of tree builds are impossible with config.h in source dir."
1737 fi
1738
1739 for v in "$@"; do
1740     r=${v#*=}
1741     l=${v%"$r"}
1742     r=$(sh_quote "$r")
1743     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1744 done
1745
1746 find_things(){
1747     thing=$1
1748     pattern=$2
1749     file=$source_path/$3
1750     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1751 }
1752
1753 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1754 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1755 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1756 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1757 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1758 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1759 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1760 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1761 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1762 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1763 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1764
1765 find_tests(){
1766     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1767 }
1768
1769 ACODEC_TESTS=$(find_tests acodec)
1770 VCODEC_TESTS=$(find_tests vsynth1)
1771 LAVF_TESTS=$(find_tests lavf)
1772 LAVFI_TESTS=$(find_tests lavfi)
1773 SEEK_TESTS=$(find_tests seek seek_)
1774
1775 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1776
1777 for n in $COMPONENT_LIST; do
1778     v=$(toupper ${n%s})_LIST
1779     eval enable \$$v
1780     eval ${n}_if_any="\$$v"
1781 done
1782
1783 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1784
1785 die_unknown(){
1786     echo "Unknown option \"$1\"."
1787     echo "See $0 --help for available options."
1788     exit 1
1789 }
1790
1791 show_list() {
1792     suffix=_$1
1793     shift
1794     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1795     exit 0
1796 }
1797
1798 for opt do
1799     optval="${opt#*=}"
1800     case "$opt" in
1801     --extra-ldflags=*) add_ldflags $optval
1802     ;;
1803     --extra-libs=*) add_extralibs $optval
1804     ;;
1805     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1806     ;;
1807     --enable-debug=*) debuglevel="$optval"
1808     ;;
1809     --disable-everything)
1810     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1811     ;;
1812     --enable-*=*|--disable-*=*)
1813     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1814     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1815     eval list=\$$(toupper $thing)_LIST
1816     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1817     $action $(filter "$name" $list)
1818     ;;
1819     --enable-?*|--disable-?*)
1820     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1821     if is_in $option $COMPONENT_LIST; then
1822         test $action = disable && action=unset
1823         eval $action \$$(toupper ${option%s})_LIST
1824     elif is_in $option $CMDLINE_SELECT; then
1825         $action $option
1826     else
1827         die_unknown $opt
1828     fi
1829     ;;
1830     --list-*)
1831         NAME="${opt#--list-}"
1832         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1833         NAME=${NAME%s}
1834         eval show_list $NAME \$$(toupper $NAME)_LIST
1835     ;;
1836     --help|-h) show_help
1837     ;;
1838     *)
1839     optname="${opt%%=*}"
1840     optname="${optname#--}"
1841     optname=$(echo "$optname" | sed 's/-/_/g')
1842     if is_in $optname $CMDLINE_SET; then
1843         eval $optname='$optval'
1844     elif is_in $optname $CMDLINE_APPEND; then
1845         append $optname "$optval"
1846     else
1847          die_unknown $opt
1848     fi
1849     ;;
1850     esac
1851 done
1852
1853 disabled logging && logfile=/dev/null
1854
1855 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1856 set >> $logfile
1857
1858 test -n "$cross_prefix" && enable cross_compile
1859
1860 if enabled cross_compile; then
1861     test -n "$arch" && test -n "$target_os" ||
1862         die "Must specify target arch and OS when cross-compiling"
1863 fi
1864
1865 set_default arch target_os
1866
1867 ar_default="${cross_prefix}${ar_default}"
1868 cc_default="${cross_prefix}${cc_default}"
1869 nm_default="${cross_prefix}${nm_default}"
1870 pkg_config_default="${cross_prefix}${pkg_config_default}"
1871 ranlib="${cross_prefix}${ranlib}"
1872 strip_default="${cross_prefix}${strip_default}"
1873
1874 sysinclude_default="${sysroot}/usr/include"
1875
1876 set_default cc nm pkg_config strip sysinclude
1877 enabled cross_compile || host_cc_default=$cc
1878 set_default host_cc
1879
1880 if ! $pkg_config --version >/dev/null 2>&1; then
1881     warn "$pkg_config not found, library detection may fail."
1882     pkg_config=false
1883 fi
1884
1885 exesuf() {
1886     case $1 in
1887         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1888     esac
1889 }
1890
1891 EXESUF=$(exesuf $target_os)
1892 HOSTEXESUF=$(exesuf $host_os)
1893
1894 # set temporary file name
1895 : ${TMPDIR:=$TEMPDIR}
1896 : ${TMPDIR:=$TMP}
1897 : ${TMPDIR:=/tmp}
1898
1899 if ! check_cmd mktemp -u XXXXXX; then
1900     # simple replacement for missing mktemp
1901     # NOT SAFE FOR GENERAL USE
1902     mktemp(){
1903         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1904     }
1905 fi
1906
1907 tmpfile(){
1908     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1909         (set -C; exec > $tmp) 2>/dev/null ||
1910         die "Unable to create temporary file in $TMPDIR."
1911     append TMPFILES $tmp
1912     eval $1=$tmp
1913 }
1914
1915 trap 'rm -f -- $TMPFILES' EXIT
1916
1917 tmpfile TMPC  .c
1918 tmpfile TMPE  $EXESUF
1919 tmpfile TMPH  .h
1920 tmpfile TMPO  .o
1921 tmpfile TMPS  .S
1922 tmpfile TMPV  .ver
1923 tmpfile TMPSH .sh
1924 tmpfile TMPASM .asm
1925
1926 unset -f mktemp
1927
1928 chmod +x $TMPE
1929
1930 # make sure we can execute files in $TMPDIR
1931 cat > $TMPSH 2>> $logfile <<EOF
1932 #! /bin/sh
1933 EOF
1934 chmod +x $TMPSH >> $logfile 2>&1
1935 if ! $TMPSH >> $logfile 2>&1; then
1936     cat <<EOF
1937 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1938 variable to another directory and make sure that it is not mounted noexec.
1939 EOF
1940     die "Sanity test failed."
1941 fi
1942
1943 filter_cflags=echo
1944 filter_cppflags=echo
1945 filter_asflags=echo
1946
1947 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1948     cc_type=llvm_gcc
1949     cc_version=__VERSION__
1950     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1951     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1952     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1953     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1954     speed_cflags='-O3'
1955     size_cflags='-Os'
1956 elif $cc -v 2>&1 | grep -qi ^gcc; then
1957     cc_type=gcc
1958     cc_version=__VERSION__
1959     gcc_version=$($cc --version | head -n1)
1960     gcc_basever=$($cc -dumpversion)
1961     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1962     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1963     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1964     if ! $cc -dumpversion | grep -q '^2\.'; then
1965         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1966         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1967     fi
1968     speed_cflags='-O3'
1969     size_cflags='-Os'
1970 elif $cc --version 2>/dev/null | grep -q Intel; then
1971     cc_type=icc
1972     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1973     cc_ident=$($cc --version | head -n1)
1974     icc_version=$($cc -dumpversion)
1975     CC_DEPFLAGS='-MMD'
1976     AS_DEPFLAGS='-MMD'
1977     speed_cflags='-O3'
1978     size_cflags='-Os'
1979     noopt_cflags='-O1'
1980 elif $cc -v 2>&1 | grep -q xlc; then
1981     cc_type=xlc
1982     cc_version="AV_STRINGIFY(__IBMC__)"
1983     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1984     speed_cflags='-O5'
1985     size_cflags='-O5 -qcompact'
1986 elif $cc -V 2>/dev/null | grep -q Compaq; then
1987     cc_type=ccc
1988     cc_version="AV_STRINGIFY(__DECC_VER)"
1989     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1990     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1991     debuglevel=3
1992     add_ldflags -Wl,-z,now # calls to libots crash without this
1993     speed_cflags='-fast'
1994     size_cflags='-O1'
1995 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1996     test -d "$sysroot" || die "No valid sysroot specified."
1997     cc_type=armcc
1998     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1999     cc_ident=$($cc --vsn | head -n1)
2000     armcc_conf="$PWD/armcc.conf"
2001     $cc --arm_linux_configure                 \
2002         --arm_linux_config_file="$armcc_conf" \
2003         --configure_sysroot="$sysroot"        \
2004         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2005         die "Error creating armcc configuration file."
2006     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2007     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2008     as_default="${cross_prefix}gcc"
2009     CC_DEPFLAGS='-MMD'
2010     AS_DEPFLAGS='-MMD'
2011     speed_cflags='-O3'
2012     size_cflags='-Os'
2013     filter_asflags="filter_out -W${armcc_opt}*"
2014 elif $cc -version 2>/dev/null | grep -q TMS470; then
2015     cc_type=tms470
2016     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2017     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2018     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2019     CC_O='-fr=$(@D)'
2020     as_default="${cross_prefix}gcc"
2021     ld_default="${cross_prefix}gcc"
2022     TMPO=$(basename $TMPC .c).o
2023     append TMPFILES $TMPO
2024     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2025     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2026     AS_DEPFLAGS='-MMD'
2027     speed_cflags='-O3 -mf=5'
2028     size_cflags='-O3 -mf=2'
2029     filter_cflags=tms470_flags
2030     tms470_flags(){
2031         for flag; do
2032             case $flag in
2033                 -march=*|-mcpu=*)
2034                     case "${flag#*=}" in
2035                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2036                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2037                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2038                         armv6*|arm11*)          echo -mv=6   ;;
2039                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2040                                                 echo -mv=5e  ;;
2041                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2042                     esac
2043                     ;;
2044                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2045                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2046                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2047                 -msoft-float)   echo --float_support=vfplib       ;;
2048                 -O[0-3]|-mf=*)  echo $flag                        ;;
2049                 -g)             echo -g -mn                       ;;
2050                 -pds=*)         echo $flag                        ;;
2051             esac
2052         done
2053     }
2054 elif $cc -v 2>&1 | grep -q clang; then
2055     cc_type=clang
2056     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2057         cc_version=__clang_version__ || cc_version=__VERSION__
2058     cc_ident=$($cc --version | head -n1)
2059     CC_DEPFLAGS='-MMD'
2060     AS_DEPFLAGS='-MMD'
2061     speed_cflags='-O3'
2062     size_cflags='-Os'
2063 elif $cc -V 2>&1 | grep -q Sun; then
2064     cc_type=suncc
2065     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2066     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2067     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2068     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2069     add_ldflags -xc99
2070     speed_cflags='-O5'
2071     size_cflags='-O5 -xspace'
2072     filter_cflags=suncc_flags
2073     suncc_flags(){
2074         for flag; do
2075             case $flag in
2076                 -march=*|-mcpu=*)
2077                     case "${flag#*=}" in
2078                         native)                   echo -xtarget=native       ;;
2079                         v9|niagara)               echo -xarch=sparc          ;;
2080                         ultrasparc)               echo -xarch=sparcvis       ;;
2081                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2082                         i586|pentium)             echo -xchip=pentium        ;;
2083                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2084                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2085                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2086                         pentium4*)          echo -xtarget=pentium4           ;;
2087                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2088                         *-sse3)             echo -xarch=sse3                 ;;
2089                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2090                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2091                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2092                         k8|opteron|athlon64|athlon-fx)
2093                                                   echo -xarch=sse2a          ;;
2094                         athlon*)                  echo -xarch=pentium_proa   ;;
2095                     esac
2096                     ;;
2097                 -std=c99)             echo -xc99              ;;
2098                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2099                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2100                 -W*,*)                echo $flag              ;;
2101                 -f*-*|-W*)                                    ;;
2102                 *)                    echo $flag              ;;
2103             esac
2104         done
2105     }
2106 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2107     cc_type=pathscale
2108     cc_version=__PATHSCALE__
2109     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2110     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2111     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2112     speed_cflags='-O2'
2113     size_cflags='-Os'
2114     filter_cflags='filter_out -Wdisabled-optimization'
2115 elif $cc -v 2>&1 | grep -q Open64; then
2116     cc_type=open64
2117     cc_version=__OPEN64__
2118     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2119     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2120     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2121     speed_cflags='-O2'
2122     size_cflags='-Os'
2123     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2124 fi
2125
2126 test -n "$cc_type" && enable $cc_type ||
2127     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2128
2129 : ${as_default:=$cc}
2130 : ${dep_cc_default:=$cc}
2131 : ${ld_default:=$cc}
2132 set_default ar as dep_cc ld
2133
2134 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2135 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2136
2137 add_cflags $extra_cflags
2138 add_asflags $extra_cflags
2139
2140 if test -n "$sysroot"; then
2141     case "$cc_type" in
2142         gcc|llvm_gcc|clang)
2143             add_cppflags --sysroot="$sysroot"
2144             add_ldflags --sysroot="$sysroot"
2145         ;;
2146         tms470)
2147             add_cppflags -I"$sysinclude"
2148             add_ldflags  --sysroot="$sysroot"
2149         ;;
2150     esac
2151 fi
2152
2153 if test "$cpu" = host; then
2154     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2155
2156     case "$cc_type" in
2157         gcc|llvm_gcc)
2158             check_native(){
2159                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2160                 sed -n "/cc1.*$1=/{
2161                             s/.*$1=\\([^ ]*\\).*/\\1/
2162                             p
2163                             q
2164                         }" $TMPE
2165             }
2166             cpu=$(check_native -march || check_native -mcpu)
2167         ;;
2168     esac
2169
2170     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2171 fi
2172
2173 # Deal with common $arch aliases
2174 case "$arch" in
2175     arm*)
2176         arch="arm"
2177     ;;
2178     mips|mipsel|IP*)
2179         arch="mips"
2180     ;;
2181     mips64*)
2182         arch="mips"
2183         subarch="mips64"
2184     ;;
2185     parisc|hppa)
2186         arch="parisc"
2187     ;;
2188     parisc64|hppa64)
2189         arch="parisc"
2190         subarch="parisc64"
2191     ;;
2192     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2193         arch="ppc"
2194     ;;
2195     s390|s390x)
2196         arch="s390"
2197     ;;
2198     sh4|sh)
2199         arch="sh4"
2200     ;;
2201     sun4u|sparc64)
2202         arch="sparc"
2203         subarch="sparc64"
2204     ;;
2205     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2206         arch="x86"
2207     ;;
2208 esac
2209
2210 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2211 enable $arch
2212
2213 # Add processor-specific flags
2214 if test "$cpu" = generic; then
2215     : do nothing
2216 elif enabled ppc; then
2217
2218     case $(tolower $cpu) in
2219         601|ppc601|powerpc601)
2220             cpuflags="-mcpu=601"
2221             disable altivec
2222         ;;
2223         603*|ppc603*|powerpc603*)
2224             cpuflags="-mcpu=603"
2225             disable altivec
2226         ;;
2227         604*|ppc604*|powerpc604*)
2228             cpuflags="-mcpu=604"
2229             disable altivec
2230         ;;
2231         g3|75*|ppc75*|powerpc75*)
2232             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2233             disable altivec
2234         ;;
2235         g4|745*|ppc745*|powerpc745*)
2236             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2237         ;;
2238         74*|ppc74*|powerpc74*)
2239             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2240         ;;
2241         g5|970|ppc970|powerpc970|power4*)
2242             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2243         ;;
2244         cell)
2245             cpuflags="-mcpu=cell"
2246             enable ldbrx
2247         ;;
2248         e500v2)
2249             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2250             disable altivec
2251         ;;
2252         e500)
2253             cpuflags="-mcpu=8540 -mhard-float"
2254             disable altivec
2255         ;;
2256     esac
2257
2258 elif enabled x86; then
2259
2260     case $cpu in
2261         i[345]86|pentium)
2262             cpuflags="-march=$cpu"
2263             disable mmx
2264         ;;
2265         # targets that do NOT support conditional mov (cmov)
2266         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2267             cpuflags="-march=$cpu"
2268             disable cmov
2269         ;;
2270         # targets that do support conditional mov (cmov)
2271         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2272             cpuflags="-march=$cpu"
2273             enable cmov
2274             enable fast_cmov
2275         ;;
2276         # targets that do support conditional mov but on which it's slow
2277         pentium4|pentium4m|prescott|nocona)
2278             cpuflags="-march=$cpu"
2279             enable cmov
2280             disable fast_cmov
2281         ;;
2282     esac
2283
2284 elif enabled sparc; then
2285
2286     case $cpu in
2287         niagara)
2288             cpuflags="-mcpu=$cpu"
2289             disable vis
2290         ;;
2291         sparc64)
2292             cpuflags="-mcpu=v9"
2293         ;;
2294     esac
2295
2296 elif enabled arm; then
2297
2298     case $cpu in
2299         armv*)
2300             cpuflags="-march=$cpu"
2301             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2302         ;;
2303         *)
2304             cpuflags="-mcpu=$cpu"
2305             case $cpu in
2306                 cortex-a*)                               subarch=armv7a  ;;
2307                 cortex-r*)                               subarch=armv7r  ;;
2308                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2309                 arm11*)                                  subarch=armv6   ;;
2310                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2311                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2312             esac
2313         ;;
2314     esac
2315
2316 elif enabled alpha; then
2317
2318     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2319
2320 elif enabled bfin; then
2321
2322     cpuflags="-mcpu=$cpu"
2323
2324 elif enabled mips; then
2325
2326     cpuflags="-march=$cpu"
2327
2328 elif enabled avr32; then
2329
2330     case $cpu in
2331         ap7[02]0[0-2])
2332             subarch="avr32_ap"
2333             cpuflags="-mpart=$cpu"
2334         ;;
2335         ap)
2336             subarch="avr32_ap"
2337             cpuflags="-march=$cpu"
2338         ;;
2339         uc3[ab]*)
2340             subarch="avr32_uc"
2341             cpuflags="-mcpu=$cpu"
2342         ;;
2343         uc)
2344             subarch="avr32_uc"
2345             cpuflags="-march=$cpu"
2346         ;;
2347     esac
2348
2349 fi
2350
2351 add_cflags $cpuflags
2352 add_asflags $cpuflags
2353
2354 # compiler sanity check
2355 check_exec <<EOF
2356 int main(void){ return 0; }
2357 EOF
2358 if test "$?" != 0; then
2359     echo "$cc is unable to create an executable file."
2360     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2361         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2362         echo "Only do this if you know what cross compiling means."
2363     fi
2364     die "C compiler test failed."
2365 fi
2366
2367 add_cppflags -D_ISOC99_SOURCE
2368 check_cflags -std=c99
2369 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2370 #include <stdlib.h>
2371 EOF
2372 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2373 #include <stdlib.h>
2374 EOF
2375
2376 check_host_cflags -std=c99
2377 check_host_cflags -Wall
2378
2379 case "$arch" in
2380     alpha|ia64|mips|parisc|sparc)
2381         spic=$shared
2382     ;;
2383     x86)
2384         subarch="x86_32"
2385         check_cc <<EOF && subarch="x86_64"
2386         int test[(int)sizeof(char*) - 7];
2387 EOF
2388         if test "$subarch" = "x86_64"; then
2389             spic=$shared
2390         fi
2391     ;;
2392     ppc)
2393         check_cc <<EOF && subarch="ppc64"
2394         int test[(int)sizeof(char*) - 7];
2395 EOF
2396     ;;
2397 esac
2398
2399 enable $subarch
2400 enabled spic && enable pic
2401
2402 # OS specific
2403 case $target_os in
2404     haiku)
2405         prefix_default="/boot/common"
2406         network_extralibs="-lnetwork"
2407         host_libs=
2408         ;;
2409     sunos)
2410         FFSERVERLDFLAGS=""
2411         SHFLAGS='-shared -Wl,-h,$$(@F)'
2412         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2413         network_extralibs="-lsocket -lnsl"
2414         add_cppflags -D__EXTENSIONS__
2415         nm_opts='-P -g'
2416         ;;
2417     netbsd)
2418         disable symver
2419         oss_indev_extralibs="-lossaudio"
2420         oss_outdev_extralibs="-lossaudio"
2421         ;;
2422     openbsd)
2423         enable malloc_aligned
2424         # On OpenBSD 4.5. the compiler does not use PIC unless
2425         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2426         # however the generated executable will not do anything
2427         # (simply quits with exit-code 1, no crash, no output).
2428         # Thus explicitly enable PIC here.
2429         enable pic
2430         disable symver
2431         SHFLAGS='-shared'
2432         oss_indev_extralibs="-lossaudio"
2433         oss_outdev_extralibs="-lossaudio"
2434         ;;
2435     dragonfly)
2436         enable malloc_aligned
2437         disable symver
2438         ;;
2439     freebsd)
2440         enable malloc_aligned
2441         ;;
2442     bsd/os)
2443         add_extralibs -lpoll -lgnugetopt
2444         strip="strip -d"
2445         ;;
2446     darwin)
2447         enable malloc_aligned
2448         gas="gas-preprocessor.pl $cc"
2449         enabled ppc && add_asflags -force_cpusubtype_ALL
2450         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2451         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2452         strip="${strip} -x"
2453         add_ldflags -Wl,-dynamic,-search_paths_first
2454         SLIBSUF=".dylib"
2455         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2456         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2457         FFSERVERLDFLAGS=-Wl,-bind_at_load
2458         objformat="macho"
2459         enabled x86_64 && objformat="macho64"
2460         enabled_any pic shared ||
2461             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2462         ;;
2463     mingw32*)
2464         if test $target_os = "mingw32ce"; then
2465             disable network
2466         else
2467             target_os=mingw32
2468         fi
2469         LIBTARGET=i386
2470         if enabled x86_64; then
2471             enable malloc_aligned
2472             LIBTARGET=x64
2473         elif enabled arm; then
2474             LIBTARGET=arm-wince
2475         fi
2476         shlibdir_default="$bindir_default"
2477         SLIBPREF=""
2478         SLIBSUF=".dll"
2479         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2480         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2481         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2482         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2483         SLIB_INSTALL_LINKS=
2484         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2485         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2486         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2487         objformat="win32"
2488         enable dos_paths
2489         check_cflags -fno-common
2490         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2491                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2492                 die "ERROR: MinGW runtime version must be >= 3.15."
2493         add_cppflags -U__STRICT_ANSI__
2494         ;;
2495     cygwin*)
2496         target_os=cygwin
2497         shlibdir_default="$bindir_default"
2498         SLIBPREF="cyg"
2499         SLIBSUF=".dll"
2500         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2501         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2502         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2503         objformat="win32"
2504         enable dos_paths
2505         check_cflags -fno-common
2506         add_cppflags -U__STRICT_ANSI__
2507         ;;
2508     *-dos|freedos|opendos)
2509         network_extralibs="-lsocket"
2510         objformat="coff"
2511         enable dos_paths
2512         add_cppflags -U__STRICT_ANSI__
2513         ;;
2514     linux)
2515         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2516         enable dv1394
2517         ;;
2518     irix*)
2519         target_os=irix
2520         ranlib="echo ignoring ranlib"
2521         ;;
2522     os/2*)
2523         strip="lxlite -CS"
2524         ln_s="cp -f"
2525         objformat="aout"
2526         add_cppflags -D_GNU_SOURCE
2527         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2528         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2529         FFSERVERLDFLAGS=""
2530         LIBSUF="_s.a"
2531         SLIBPREF=""
2532         SLIBSUF=".dll"
2533         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2534         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2535         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2536           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2537           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2538           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2539           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2540           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2541         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2542           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2543         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2544         enable dos_paths
2545         ;;
2546     gnu/kfreebsd)
2547         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2548         ;;
2549     gnu)
2550         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2551         ;;
2552     qnx)
2553         add_cppflags -D_QNX_SOURCE
2554         network_extralibs="-lsocket"
2555         ;;
2556     symbian)
2557         SLIBSUF=".dll"
2558         enable dos_paths
2559         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2560         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2561         add_ldflags -Wl,--target1-abs,--no-undefined \
2562                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2563                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2564         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2565                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2566                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2567         ;;
2568     none)
2569         ;;
2570     *)
2571         die "Unknown OS '$target_os'."
2572         ;;
2573 esac
2574
2575 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2576
2577 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2578
2579 set_default $PATHS_LIST
2580
2581 # we need to build at least one lib type
2582 if ! enabled_any static shared; then
2583     cat <<EOF
2584 At least one library type must be built.
2585 Specify --enable-static to build the static libraries or --enable-shared to
2586 build the shared libraries as well. To only build the shared libraries specify
2587 --disable-static in addition to --enable-shared.
2588 EOF
2589     exit 1;
2590 fi
2591
2592 die_license_disabled() {
2593     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2594 }
2595
2596 die_license_disabled gpl libx264
2597 die_license_disabled gpl libxavs
2598 die_license_disabled gpl libxvid
2599 die_license_disabled gpl x11grab
2600
2601 die_license_disabled nonfree libfaac
2602
2603 die_license_disabled version3 libopencore_amrnb
2604 die_license_disabled version3 libopencore_amrwb
2605 die_license_disabled version3 libvo_aacenc
2606 die_license_disabled version3 libvo_amrwbenc
2607
2608 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2609
2610 disabled optimizations || check_cflags -fomit-frame-pointer
2611
2612 enable_pic() {
2613     enable pic
2614     add_cppflags -DPIC
2615     add_cflags   -fPIC
2616     add_asflags  -fPIC
2617 }
2618
2619 enabled pic && enable_pic
2620
2621 check_cc <<EOF || die "Symbol mangling check failed."
2622 int ff_extern;
2623 EOF
2624 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2625 extern_prefix=${sym%%ff_extern*}
2626
2627 check_cc <<EOF && enable inline_asm
2628 void foo(void) { __asm__ volatile ("" ::); }
2629 EOF
2630
2631 _restrict=
2632 for restrict_keyword in restrict __restrict__ __restrict; do
2633     check_cc <<EOF && _restrict=$restrict_keyword && break
2634 void foo(char * $restrict_keyword p);
2635 EOF
2636 done
2637
2638 check_cc <<EOF && enable attribute_packed
2639 struct { int x; } __attribute__((packed)) x;
2640 EOF
2641
2642 check_cc <<EOF && enable attribute_may_alias
2643 union { int x; } __attribute__((may_alias)) x;
2644 EOF
2645
2646 check_cc <<EOF || die "endian test failed"
2647 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2648 EOF
2649 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2650
2651 if enabled alpha; then
2652
2653     check_cflags -mieee
2654
2655 elif enabled arm; then
2656
2657     enabled thumb && check_cflags -mthumb || check_cflags -marm
2658     nogas=die
2659
2660     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2661         enable vfp_args
2662     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2663         case "${cross_prefix:-$cc}" in
2664             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2665             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2666 __asm__ (".eabi_attribute 28, 1");
2667 int main(void) { return 0; }
2668 EOF
2669         esac
2670         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2671     fi
2672
2673     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2674     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2675     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2676     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2677     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2678     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2679     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2680
2681     enabled_all armv6t2 shared !pic && enable_pic
2682
2683 elif enabled mips; then
2684
2685     check_asm loongson '"dmult.g $1, $2, $3"'
2686     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2687
2688 elif enabled ppc; then
2689
2690     enable local_aligned_8 local_aligned_16
2691
2692     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2693     check_asm ibm_asm   '"add 0, 0, 0"'
2694     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2695     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2696
2697     # AltiVec flags: The FSF version of GCC differs from the Apple version
2698     if enabled altivec; then
2699         nogas=warn
2700         check_cflags -maltivec -mabi=altivec &&
2701         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2702         check_cflags -faltivec
2703
2704         # check if our compiler supports Motorola AltiVec C API
2705         check_cc <<EOF || disable altivec
2706 $inc_altivec_h
2707 int main(void) {
2708     vector signed int v1, v2, v3;
2709     v1 = vec_add(v2,v3);
2710     return 0;
2711 }
2712 EOF
2713
2714         # check if our compiler supports braces for vector declarations
2715         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2716 $inc_altivec_h
2717 int main (void) { (vector int) {1}; return 0; }
2718 EOF
2719     fi
2720
2721 elif enabled sparc; then
2722
2723     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2724         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2725
2726 elif enabled x86; then
2727
2728     enable local_aligned_8 local_aligned_16
2729
2730     # check whether EBP is available on x86
2731     # As 'i' is stored on the stack, this program will crash
2732     # if the base pointer is used to access it because the
2733     # base pointer is cleared in the inline assembly code.
2734     check_exec_crash <<EOF && enable ebp_available
2735     volatile int i=0;
2736     __asm__ volatile (
2737         "xorl %%ebp, %%ebp"
2738     ::: "%ebp");
2739     return i;
2740 EOF
2741
2742     # check whether EBX is available on x86
2743     check_asm ebx_available '""::"b"(0)' &&
2744         check_asm ebx_available '"":::"%ebx"'
2745
2746     # check whether xmm clobbers are supported
2747     check_asm xmm_clobbers '"":::"%xmm0"'
2748
2749     # check whether binutils is new enough to compile SSSE3/MMX2
2750     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2751     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2752
2753     check_asm bswap '"bswap %%eax" ::: "%eax"'
2754
2755     if ! disabled_any asm mmx yasm; then
2756         if check_cmd $yasmexe --version; then
2757             enabled x86_64 && yasm_extra="-m amd64"
2758             yasm_debug="-g dwarf2"
2759         elif check_cmd nasm -v; then
2760             yasmexe=nasm
2761             yasm_debug="-g -F dwarf"
2762             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2763         fi
2764
2765         YASMFLAGS="-f $objformat $yasm_extra"
2766         enabled pic               && append YASMFLAGS "-DPIC"
2767         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2768         case "$objformat" in
2769             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2770         esac
2771
2772         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2773             die "yasm not found, use --disable-yasm for a crippled build"
2774         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2775     fi
2776
2777     case "$cpu" in
2778         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2779             disable fast_clz
2780         ;;
2781     esac
2782
2783 fi
2784
2785 if enabled asm; then
2786     as=${gas:=$as}
2787     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2788         $nogas "GNU assembler not found, install gas-preprocessor"
2789 fi
2790
2791 check_ldflags -Wl,--as-needed
2792
2793 if check_func dlopen; then
2794     ldl=
2795 elif check_func dlopen -ldl; then
2796     ldl=-ldl
2797 fi
2798
2799 if enabled network; then
2800     check_type "sys/types.h sys/socket.h" socklen_t
2801     check_type netdb.h "struct addrinfo"
2802     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2803     check_type netinet/in.h "struct sockaddr_in6"
2804     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2805     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2806     # Prefer arpa/inet.h over winsock2
2807     if check_header arpa/inet.h ; then
2808         check_func closesocket
2809     elif check_header winsock2.h ; then
2810         check_func_headers winsock2.h closesocket -lws2 && \
2811             network_extralibs="-lws2" || \
2812         { check_func_headers winsock2.h closesocket -lws2_32 && \
2813             network_extralibs="-lws2_32"; }
2814         check_type ws2tcpip.h socklen_t
2815         check_type ws2tcpip.h "struct addrinfo"
2816         check_type ws2tcpip.h "struct ipv6_mreq"
2817         check_type ws2tcpip.h "struct sockaddr_in6"
2818         check_type ws2tcpip.h "struct sockaddr_storage"
2819         check_struct winsock2.h "struct sockaddr" sa_len
2820     else
2821         disable network
2822     fi
2823 fi
2824
2825 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2826 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2827
2828 check_func  fcntl
2829 check_func  fork
2830 check_func  getaddrinfo $network_extralibs
2831 check_func  gethrtime
2832 check_func  getrusage
2833 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2834 check_func  inet_aton $network_extralibs
2835 check_func  isatty
2836 check_func  localtime_r
2837 check_func  ${malloc_prefix}memalign            && enable memalign
2838 check_func  mkstemp
2839 check_func  mmap
2840 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2841 check_func  setrlimit
2842 check_func  strerror_r
2843 check_func  strptime
2844 check_func  strtok_r
2845 check_func_headers conio.h kbhit
2846 check_func_headers windows.h PeekNamedPipe
2847 check_func_headers io.h setmode
2848 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2849 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2850 check_func_headers windows.h GetProcessTimes
2851 check_func_headers windows.h MapViewOfFile
2852 check_func_headers windows.h VirtualAlloc
2853
2854 check_header dlfcn.h
2855 check_header dxva2api.h
2856 check_header libcrystalhd/libcrystalhd_if.h
2857 check_header malloc.h
2858 check_header poll.h
2859 check_header sys/mman.h
2860 check_header sys/resource.h
2861 check_header sys/select.h
2862 check_header termios.h
2863 check_header vdpau/vdpau.h
2864 check_header vdpau/vdpau_x11.h
2865 check_header X11/extensions/XvMClib.h
2866
2867 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2868
2869 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2870 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2871
2872 # check for some common methods of building with pthread support
2873 # do this before the optional library checks as some of them require pthreads
2874 if ! disabled pthreads && ! enabled w32threads; then
2875     enable pthreads
2876     if check_func pthread_create; then
2877         :
2878     elif check_func pthread_create -pthread; then
2879         add_cflags -pthread
2880         add_extralibs -pthread
2881     elif check_func pthread_create -pthreads; then
2882         add_cflags -pthreads
2883         add_extralibs -pthreads
2884     elif check_func pthread_create -lpthreadGC2; then
2885         add_extralibs -lpthreadGC2
2886     elif ! check_lib pthread.h pthread_create -lpthread; then
2887         disable pthreads
2888     fi
2889 fi
2890
2891 for thread in $THREADS_LIST; do
2892     if enabled $thread; then
2893         test -n "$thread_type" &&
2894             die "ERROR: Only one thread type must be selected." ||
2895             thread_type="$thread"
2896     fi
2897 done
2898
2899 check_lib math.h sin -lm && LIBM="-lm"
2900 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2901 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2902
2903 check_mathfunc exp2
2904 check_mathfunc exp2f
2905 check_mathfunc llrint
2906 check_mathfunc llrintf
2907 check_mathfunc log2
2908 check_mathfunc log2f
2909 check_mathfunc lrint
2910 check_mathfunc lrintf
2911 check_mathfunc round
2912 check_mathfunc roundf
2913 check_mathfunc trunc
2914 check_mathfunc truncf
2915
2916 # these are off by default, so fail if requested and not available
2917 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2918 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2919 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2920 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2921 enabled libdirac   && require_pkg_config dirac                          \
2922     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2923     "dirac_decoder_init dirac_encoder_init"
2924 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2925 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2926 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2927 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2928 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2929 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2930 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2931 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2932 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2933 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2934 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2935 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2936 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2937 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2938 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2939 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2940 enabled libvpx     && {
2941     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2942                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2943     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2944                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2945 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2946                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2947                         die "ERROR: libx264 version must be >= 0.115."; }
2948 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2949 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2950 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2951                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2952                         die "ERROR: openal not found"; } &&
2953                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2954                         die "ERROR: openal version must be 1.1 or compatible"; }
2955 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2956
2957 SDL_CONFIG="${cross_prefix}sdl-config"
2958 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2959     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2960     enable sdl &&
2961     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2962 else
2963   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2964     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2965     sdl_libs=$("${SDL_CONFIG}" --libs)
2966     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2967     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2968     enable sdl &&
2969     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2970   fi
2971 fi
2972 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2973
2974 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2975
2976 check_header linux/fb.h
2977 check_header linux/videodev.h
2978 check_header linux/videodev2.h
2979 check_header sys/videoio.h
2980
2981 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2982 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2983 # w32api 3.12 had it defined wrong
2984 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2985
2986 check_type "dshow.h" IBaseFilter
2987
2988 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2989 { check_header dev/bktr/ioctl_meteor.h &&
2990   check_header dev/bktr/ioctl_bt848.h; } ||
2991 { check_header machine/ioctl_meteor.h &&
2992   check_header machine/ioctl_bt848.h; } ||
2993 { check_header dev/video/meteor/ioctl_meteor.h &&
2994   check_header dev/video/bktr/ioctl_bt848.h; } ||
2995 check_header dev/ic/bt8xx.h
2996
2997 check_header sndio.h
2998 if check_struct sys/soundcard.h audio_buf_info bytes; then
2999     enable_safe sys/soundcard.h
3000 else
3001     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3002     #include <sys/soundcard.h>
3003     audio_buf_info abc;
3004 EOF
3005 fi
3006 check_header soundcard.h
3007
3008 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3009
3010 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3011
3012 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3013
3014 enabled x11grab                         &&
3015 check_header X11/Xlib.h                 &&
3016 check_header X11/extensions/XShm.h      &&
3017 check_header X11/extensions/Xfixes.h    &&
3018 check_func XOpenDisplay -lX11           &&
3019 check_func XShmCreateImage -lX11 -lXext &&
3020 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3021
3022 if ! disabled vaapi; then
3023     check_lib va/va.h vaInitialize -lva && {
3024         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3025         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3026     } || disable vaapi
3027 fi
3028
3029 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3030 check_cpp_condition \
3031     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3032     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3033       disable vdpau; }
3034 fi
3035
3036 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3037
3038 # add some useful compiler flags if supported
3039 check_cflags -Wdeclaration-after-statement
3040 check_cflags -Wall
3041 check_cflags -Wno-parentheses
3042 check_cflags -Wno-switch
3043 check_cflags -Wno-format-zero-length
3044 check_cflags -Wdisabled-optimization
3045 check_cflags -Wpointer-arith
3046 check_cflags -Wredundant-decls
3047 check_cflags -Wno-pointer-sign
3048 check_cflags -Wcast-qual
3049 check_cflags -Wwrite-strings
3050 check_cflags -Wtype-limits
3051 check_cflags -Wundef
3052 check_cflags -Wmissing-prototypes
3053 check_cflags -Wno-pointer-to-int-cast
3054 enabled extra_warnings && check_cflags -Winline
3055
3056 # add some linker flags
3057 check_ldflags -Wl,--warn-common
3058 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3059 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3060
3061 echo "X{};" > $TMPV
3062 if test_ldflags -Wl,--version-script,$TMPV; then
3063     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3064     check_cc <<EOF && enable symver_asm_label
3065 void ff_foo(void) __asm__ ("av_foo@VERSION");
3066 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3067 EOF
3068     check_cc <<EOF && enable symver_gnu_asm
3069 __asm__(".symver ff_foo,av_foo@VERSION");
3070 void ff_foo(void) {}
3071 EOF
3072 fi
3073
3074 if [ -n "$optflags" ]; then
3075     add_cflags $optflags
3076 elif enabled small; then
3077     add_cflags $size_cflags
3078 elif enabled optimizations; then
3079     add_cflags $speed_cflags
3080 else
3081     add_cflags $noopt_cflags
3082 fi
3083 check_cflags -fno-math-errno
3084 check_cflags -fno-signed-zeros
3085
3086 if enabled icc; then
3087     # Just warnings, no remarks
3088     check_cflags -w1
3089     # -wd: Disable following warnings
3090     # 144, 167, 556: -Wno-pointer-sign
3091     # 1292: attribute "foo" ignored
3092     # 10006: ignoring unknown option -fno-signed-zeros
3093     # 10148: ignoring unknown option -Wno-parentheses
3094     # 10156: ignoring option '-W'; no argument required
3095     check_cflags -wd144,167,556,1292,10006,10148,10156
3096     # 11030: Warning unknown option --as-needed
3097     # 10156: ignoring option '-export'; no argument required
3098     check_ldflags -wd10156,11030
3099     # Allow to compile with optimizations
3100     check_ldflags -march=$cpu
3101     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3102     enable ebp_available
3103     if enabled x86_32; then
3104         test ${icc_version%%.*} -ge 11 && \
3105             check_cflags -falign-stack=maintain-16-byte || \
3106             disable aligned_stack
3107     fi
3108 elif enabled ccc; then
3109     # disable some annoying warnings
3110     add_cflags -msg_disable cvtu32to64
3111     add_cflags -msg_disable embedcomment
3112     add_cflags -msg_disable needconstext
3113     add_cflags -msg_disable nomainieee
3114     add_cflags -msg_disable ptrmismatch1
3115     add_cflags -msg_disable unreachcode
3116 elif enabled gcc; then
3117     check_cflags -fno-tree-vectorize
3118     check_cflags -Werror=implicit-function-declaration
3119     check_cflags -Werror=missing-prototypes
3120 elif enabled llvm_gcc; then
3121     check_cflags -mllvm -stack-alignment=16
3122 elif enabled clang; then
3123     check_cflags -mllvm -stack-alignment=16
3124     check_cflags -Qunused-arguments
3125 elif enabled armcc; then
3126     # 2523: use of inline assembler is deprecated
3127     add_cflags -W${armcc_opt},--diag_suppress=2523
3128     add_cflags -W${armcc_opt},--diag_suppress=1207
3129     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3130     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3131     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3132     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3133 elif enabled tms470; then
3134     add_cflags -pds=824 -pds=837
3135 elif enabled pathscale; then
3136     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3137 fi
3138
3139 enabled_any $THREADS_LIST      && enable threads
3140
3141 check_deps $CONFIG_LIST       \
3142            $CONFIG_EXTRA      \
3143            $HAVE_LIST         \
3144            $DECODER_LIST      \
3145            $ENCODER_LIST      \
3146            $HWACCEL_LIST      \
3147            $PARSER_LIST       \
3148            $BSF_LIST          \
3149            $DEMUXER_LIST      \
3150            $MUXER_LIST        \
3151            $FILTER_LIST       \
3152            $INDEV_LIST        \
3153            $OUTDEV_LIST       \
3154            $PROTOCOL_LIST     \
3155            $ACODEC_TESTS      \
3156            $VCODEC_TESTS      \
3157            $LAVF_TESTS        \
3158            $LAVFI_TESTS       \
3159            $SEEK_TESTS        \
3160
3161 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3162
3163 if test $target_os == "haiku"; then
3164     disable memalign
3165     disable posix_memalign
3166 fi
3167
3168 ! enabled_any memalign posix_memalign malloc_aligned &&
3169     enabled_any $need_memalign && enable memalign_hack
3170
3171 echo "install prefix            $prefix"
3172 echo "source path               $source_path"
3173 echo "C compiler                $cc"
3174 echo "ARCH                      $arch ($cpu)"
3175 if test "$build_suffix" != ""; then
3176     echo "build suffix              $build_suffix"
3177 fi
3178 if test "$progs_suffix" != ""; then
3179     echo "progs suffix              $progs_suffix"
3180 fi
3181 if test "$extra_version" != ""; then
3182     echo "version string suffix     $extra_version"
3183 fi
3184 echo "big-endian                ${bigendian-no}"
3185 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3186 if enabled x86; then
3187     echo "${yasmexe}                      ${yasm-no}"
3188     echo "MMX enabled               ${mmx-no}"
3189     echo "MMX2 enabled              ${mmx2-no}"
3190     echo "3DNow! enabled            ${amd3dnow-no}"
3191     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3192     echo "SSE enabled               ${sse-no}"
3193     echo "SSSE3 enabled             ${ssse3-no}"
3194     echo "AVX enabled               ${avx-no}"
3195     echo "CMOV enabled              ${cmov-no}"
3196     echo "CMOV is fast              ${fast_cmov-no}"
3197     echo "EBX available             ${ebx_available-no}"
3198     echo "EBP available             ${ebp_available-no}"
3199 fi
3200 if enabled arm; then
3201     echo "ARMv5TE enabled           ${armv5te-no}"
3202     echo "ARMv6 enabled             ${armv6-no}"
3203     echo "ARMv6T2 enabled           ${armv6t2-no}"
3204     echo "ARM VFP enabled           ${armvfp-no}"
3205     echo "IWMMXT enabled            ${iwmmxt-no}"
3206     echo "NEON enabled              ${neon-no}"
3207 fi
3208 if enabled mips; then
3209     echo "MMI enabled               ${mmi-no}"
3210 fi
3211 if enabled ppc; then
3212     echo "AltiVec enabled           ${altivec-no}"
3213     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3214     echo "dcbzl available           ${dcbzl-no}"
3215 fi
3216 if enabled sparc; then
3217     echo "VIS enabled               ${vis-no}"
3218 fi
3219 echo "debug symbols             ${debug-no}"
3220 echo "strip symbols             ${stripping-no}"
3221 echo "optimize for size         ${small-no}"
3222 echo "optimizations             ${optimizations-no}"
3223 echo "static                    ${static-no}"
3224 echo "shared                    ${shared-no}"
3225 echo "postprocessing support    ${postproc-no}"
3226 echo "new filter support        ${avfilter-no}"
3227 echo "network support           ${network-no}"
3228 echo "threading support         ${thread_type-no}"
3229 echo "SDL support               ${sdl-no}"
3230 echo "Sun medialib support      ${mlib-no}"
3231 echo "libdxva2 enabled          ${dxva2-no}"
3232 echo "libva enabled             ${vaapi-no}"
3233 echo "libvdpau enabled          ${vdpau-no}"
3234 echo "AVISynth enabled          ${avisynth-no}"
3235 echo "libcelt enabled           ${libcelt-no}"
3236 echo "frei0r enabled            ${frei0r-no}"
3237 echo "libdc1394 support         ${libdc1394-no}"
3238 echo "libdirac enabled          ${libdirac-no}"
3239 echo "libfaac enabled           ${libfaac-no}"
3240 echo "libgsm enabled            ${libgsm-no}"
3241 echo "libmp3lame enabled        ${libmp3lame-no}"
3242 echo "libnut enabled            ${libnut-no}"
3243 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3244 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3245 echo "libopencv support         ${libopencv-no}"
3246 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3247 echo "librtmp enabled           ${librtmp-no}"
3248 echo "libschroedinger enabled   ${libschroedinger-no}"
3249 echo "libspeex enabled          ${libspeex-no}"
3250 echo "libtheora enabled         ${libtheora-no}"
3251 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3252 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3253 echo "libvorbis enabled         ${libvorbis-no}"
3254 echo "libvpx enabled            ${libvpx-no}"
3255 echo "libx264 enabled           ${libx264-no}"
3256 echo "libxavs enabled           ${libxavs-no}"
3257 echo "libxvid enabled           ${libxvid-no}"
3258 echo "openal enabled            ${openal-no}"
3259 echo "zlib enabled              ${zlib-no}"
3260 echo "bzlib enabled             ${bzlib-no}"
3261 echo
3262
3263 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3264     echo "Enabled ${type}s:"
3265     eval list=\$$(toupper $type)_LIST
3266     print_enabled '_*' $list | sort | pr -r -3 -t
3267     echo
3268 done
3269
3270 license="LGPL version 2.1 or later"
3271 if enabled nonfree; then
3272     license="nonfree and unredistributable"
3273 elif enabled gplv3; then
3274     license="GPL version 3 or later"
3275 elif enabled lgplv3; then
3276     license="LGPL version 3 or later"
3277 elif enabled gpl; then
3278     license="GPL version 2 or later"
3279 fi
3280
3281 echo "License: $license"
3282
3283 echo "Creating config.mak and config.h..."
3284
3285 test -e Makefile || $ln_s "$source_path/Makefile" .
3286
3287 enabled stripping || strip="echo skipping strip"
3288
3289 config_files="$TMPH config.mak"
3290
3291 cat > config.mak <<EOF
3292 # Automatically generated by configure - do not modify!
3293 ifndef FFMPEG_CONFIG_MAK
3294 FFMPEG_CONFIG_MAK=1
3295 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3296 prefix=$prefix
3297 LIBDIR=\$(DESTDIR)$libdir
3298 SHLIBDIR=\$(DESTDIR)$shlibdir
3299 INCDIR=\$(DESTDIR)$incdir
3300 BINDIR=\$(DESTDIR)$bindir
3301 DATADIR=\$(DESTDIR)$datadir
3302 MANDIR=\$(DESTDIR)$mandir
3303 SRC_PATH=$source_path
3304 ifndef MAIN_MAKEFILE
3305 SRC_PATH:=\$(SRC_PATH:.%=..%)
3306 endif
3307 CC_IDENT=$cc_ident
3308 ARCH=$arch
3309 CC=$cc
3310 AS=$as
3311 LD=$ld
3312 DEPCC=$dep_cc
3313 YASM=$yasmexe
3314 YASMDEP=$yasmexe
3315 AR=$ar
3316 RANLIB=$ranlib
3317 CP=cp -p
3318 LN_S=$ln_s
3319 STRIP=$strip
3320 CPPFLAGS=$CPPFLAGS
3321 CFLAGS=$CFLAGS
3322 ASFLAGS=$ASFLAGS
3323 AS_O=$CC_O
3324 CC_O=$CC_O
3325 LDFLAGS=$LDFLAGS
3326 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3327 SHFLAGS=$SHFLAGS
3328 YASMFLAGS=$YASMFLAGS
3329 BUILDSUF=$build_suffix
3330 PROGSSUF=$progs_suffix
3331 FULLNAME=$FULLNAME
3332 LIBPREF=$LIBPREF
3333 LIBSUF=$LIBSUF
3334 LIBNAME=$LIBNAME
3335 SLIBPREF=$SLIBPREF
3336 SLIBSUF=$SLIBSUF
3337 EXESUF=$EXESUF
3338 EXTRA_VERSION=$extra_version
3339 DEPFLAGS=$DEPFLAGS
3340 CCDEP=$CCDEP
3341 ASDEP=$ASDEP
3342 CC_DEPFLAGS=$CC_DEPFLAGS
3343 AS_DEPFLAGS=$AS_DEPFLAGS
3344 HOSTCC=$host_cc
3345 HOSTCFLAGS=$host_cflags
3346 HOSTEXESUF=$HOSTEXESUF
3347 HOSTLDFLAGS=$host_ldflags
3348 HOSTLIBS=$host_libs
3349 TARGET_EXEC=$target_exec
3350 TARGET_PATH=$target_path
3351 SDL_LIBS=$sdl_libs
3352 SDL_CFLAGS=$sdl_cflags
3353 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3354 EXTRALIBS=$extralibs
3355 INSTALL=$install
3356 LIBTARGET=${LIBTARGET}
3357 SLIBNAME=${SLIBNAME}
3358 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3359 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3360 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3361 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3362 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3363 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3364 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3365 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3366 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3367 EOF
3368
3369 get_version(){
3370     name=$1
3371     file=$source_path/$2
3372     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3373     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3374     lcname=$(tolower $name)
3375     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3376     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3377 }
3378
3379 get_version LIBSWSCALE  libswscale/swscale.h
3380 get_version LIBPOSTPROC libpostproc/postprocess.h
3381 get_version LIBAVCODEC  libavcodec/version.h
3382 get_version LIBAVDEVICE libavdevice/avdevice.h
3383 get_version LIBAVFORMAT libavformat/version.h
3384 get_version LIBAVUTIL   libavutil/avutil.h
3385 get_version LIBAVFILTER libavfilter/avfilter.h
3386
3387 cat > $TMPH <<EOF
3388 /* Automatically generated by configure - do not modify! */
3389 #ifndef FFMPEG_CONFIG_H
3390 #define FFMPEG_CONFIG_H
3391 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3392 #define FFMPEG_LICENSE "$(c_escape $license)"
3393 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3394 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3395 #define CC_TYPE "$cc_type"
3396 #define CC_VERSION $cc_version
3397 #define restrict $_restrict
3398 #define EXTERN_PREFIX "${extern_prefix}"
3399 #define EXTERN_ASM ${extern_prefix}
3400 #define SLIBSUF "$SLIBSUF"
3401 EOF
3402
3403 test -n "$malloc_prefix" &&
3404     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3405
3406 if enabled small || disabled optimizations; then
3407     echo "#undef  av_always_inline"  >> $TMPH
3408     if enabled small; then
3409         echo "#define av_always_inline inline"  >> $TMPH
3410     else
3411         echo "#define av_always_inline av_unused"  >> $TMPH
3412     fi
3413 fi
3414
3415 if enabled yasm; then
3416     append config_files $TMPASM
3417     printf '' >$TMPASM
3418 fi
3419
3420 print_config ARCH_   "$config_files" $ARCH_LIST
3421 print_config HAVE_   "$config_files" $HAVE_LIST
3422 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3423                                      $CONFIG_EXTRA      \
3424                                      $DECODER_LIST      \
3425                                      $ENCODER_LIST      \
3426                                      $HWACCEL_LIST      \
3427                                      $PARSER_LIST       \
3428                                      $BSF_LIST          \
3429                                      $DEMUXER_LIST      \
3430                                      $MUXER_LIST        \
3431                                      $FILTER_LIST       \
3432                                      $PROTOCOL_LIST     \
3433                                      $INDEV_LIST        \
3434                                      $OUTDEV_LIST       \
3435
3436 cat >>config.mak <<EOF
3437 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3438 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3439 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3440 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3441 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3442 EOF
3443
3444 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3445 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3446
3447 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3448 cp_if_changed $TMPH config.h
3449 touch .config
3450
3451 enabled yasm && cp_if_changed $TMPASM config.asm
3452
3453 cat > $TMPH <<EOF
3454 /* Generated by ffconf */
3455 #ifndef AVUTIL_AVCONFIG_H
3456 #define AVUTIL_AVCONFIG_H
3457 EOF
3458
3459 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3460
3461 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3462
3463 cp_if_changed $TMPH libavutil/avconfig.h
3464
3465 test -n "$WARNINGS" && printf "\n$WARNINGS"
3466
3467 # build pkg-config files
3468
3469 pkgconfig_generate(){
3470 name=$1
3471 shortname=${name#lib}${build_suffix}
3472 comment=$2
3473 version=$3
3474 libs=$4
3475 requires=$5
3476 enabled ${name#lib} || return 0
3477 mkdir -p $name
3478 cat <<EOF > $name/$name.pc
3479 prefix=$prefix
3480 exec_prefix=\${prefix}
3481 libdir=$libdir
3482 includedir=$incdir
3483
3484 Name: $name
3485 Description: $comment
3486 Version: $version
3487 Requires: $(enabled shared || echo $requires)
3488 Requires.private: $(enabled shared && echo $requires)
3489 Conflicts:
3490 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3491 Libs.private: $(enabled shared && echo $libs)
3492 Cflags: -I\${includedir}
3493 EOF
3494 cat <<EOF > $name/$name-uninstalled.pc
3495 prefix=
3496 exec_prefix=
3497 libdir=\${pcfiledir}
3498 includedir=${source_path}
3499
3500 Name: $name
3501 Description: $comment
3502 Version: $version
3503 Requires: $requires
3504 Conflicts:
3505 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3506 Cflags: -I\${includedir}
3507 EOF
3508 }
3509
3510 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3511 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3512 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3513 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3514 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3515 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3516 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"