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

   1 #!/bin/sh
   2 #
   3 # Libav 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 LIBAV, 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 Libav."
  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/avconv]
  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-avplay         disable avplay build
  86   --disable-avprobe        disable avprobe build
  87   --disable-avserver       disable avserver 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
 111   --enable-vdpau           enable VDPAU code
 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-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libfreetype     enable libfreetype [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [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-mlib            enable Sun medialib [no]
 193   --enable-zlib            enable zlib [autodetect]
 194
 195 Advanced options (experts only):
 196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 197   --enable-cross-compile   assume a cross-compiler is used
 198   --sysroot=PATH           root of cross-build tree
 199   --sysinclude=PATH        location of cross-build system headers
 200   --target-os=OS           compiler targets OS [$target_os]
 201   --target-exec=CMD        command to run executables on target
 202   --target-path=DIR        path to view of build directory on target
 203   --nm=NM                  use nm tool
 204   --ar=AR                  use archive tool AR [$ar_default]
 205   --as=AS                  use assembler AS [$as_default]
 206   --cc=CC                  use C compiler CC [$cc_default]
 207   --cxx=CXX                use C compiler CXX [$cxx_default]
 208   --ld=LD                  use linker LD
 209   --host-cc=HOSTCC         use host C compiler HOSTCC
 210   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 211   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 212   --host-libs=HLIBS        use libs HLIBS when linking for host
 213   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 214   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 215   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 216   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 217   --extra-version=STRING   version string suffix []
 218   --build-suffix=SUFFIX    library name suffix []
 219   --arch=ARCH              select architecture [$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 Libav itself):
 247   --disable-debug          disable debugging symbols
 248   --enable-debug=LEVEL     set the debug level [$debuglevel]
 249   --disable-optimizations  disable compiler optimizations
 250   --enable-extra-warnings  enable more compiler warnings
 251   --samples=PATH           location of test samples for FATE, if not set use
 252                            \$FATE_SAMPLES at make invocation time.
 253
 254 NOTE: Object files are built at the place where configure is launched.
 255 EOF
 256   exit 0
 257 }
 258
 259 quotes='""'
 260
 261 log(){
 262     echo "$@" >> $logfile
 263 }
 264
 265 log_file(){
 266     log BEGIN $1
 267     pr -n -t $1 >> $logfile
 268     log END $1
 269 }
 270
 271 echolog(){
 272     log "$@"
 273     echo "$@"
 274 }
 275
 276 warn(){
 277     log "WARNING: $*"
 278     WARNINGS="${WARNINGS}WARNING: $*\n"
 279 }
 280
 281 die(){
 282     echolog "$@"
 283     cat <<EOF
 284
 285 If you think configure made a mistake, make sure you are using the latest
 286 version from Git.  If the latest version fails, report the problem to the
 287 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 288 EOF
 289     if disabled logging; then
 290         cat <<EOF
 291 Rerun configure with logging enabled (do not use --disable-logging), and
 292 include the log this produces with your report.
 293 EOF
 294     else
 295 cat <<EOF
 296 Include the log file "$logfile" produced by configure as this will help
 297 solving the problem.
 298 EOF
 299     fi
 300     exit 1
 301 }
 302
 303 # Avoid locale weirdness, besides we really just want to translate ASCII.
 304 toupper(){
 305     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 306 }
 307
 308 tolower(){
 309     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 310 }
 311
 312 c_escape(){
 313     echo "$*" | sed 's/["\\]/\\\0/g'
 314 }
 315
 316 sh_quote(){
 317     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 318     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 319     echo "$v"
 320 }
 321
 322 cleanws(){
 323     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 324 }
 325
 326 filter(){
 327     pat=$1
 328     shift
 329     for v; do
 330         eval "case $v in $pat) echo $v ;; esac"
 331     done
 332 }
 333
 334 filter_out(){
 335     pat=$1
 336     shift
 337     for v; do
 338         eval "case $v in $pat) ;; *) echo $v ;; esac"
 339     done
 340 }
 341
 342 map(){
 343     m=$1
 344     shift
 345     for v; do eval $m; done
 346 }
 347
 348 set_all(){
 349     value=$1
 350     shift
 351     for var in $*; do
 352         eval $var=$value
 353     done
 354 }
 355
 356 set_weak(){
 357     value=$1
 358     shift
 359     for var; do
 360         eval : \${$var:=$value}
 361     done
 362 }
 363
 364 set_safe(){
 365     var=$1
 366     shift
 367     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 368 }
 369
 370 get_safe(){
 371     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 372 }
 373
 374 pushvar(){
 375     for var in $*; do
 376         eval level=\${${var}_level:=0}
 377         eval ${var}_${level}="\$$var"
 378         eval ${var}_level=$(($level+1))
 379     done
 380 }
 381
 382 popvar(){
 383     for var in $*; do
 384         eval level=\${${var}_level:-0}
 385         test $level = 0 && continue
 386         eval level=$(($level-1))
 387         eval $var="\${${var}_${level}}"
 388         eval ${var}_level=$level
 389         eval unset ${var}_${level}
 390     done
 391 }
 392
 393 enable(){
 394     set_all yes $*
 395 }
 396
 397 disable(){
 398     set_all no $*
 399 }
 400
 401 enable_weak(){
 402     set_weak yes $*
 403 }
 404
 405 disable_weak(){
 406     set_weak no $*
 407 }
 408
 409 enable_safe(){
 410     for var; do
 411         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 412     done
 413 }
 414
 415 disable_safe(){
 416     for var; do
 417         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 418     done
 419 }
 420
 421 do_enable_deep(){
 422     for var; do
 423         enabled $var && continue
 424         eval sel="\$${var}_select"
 425         eval sgs="\$${var}_suggest"
 426         pushvar var sgs
 427         enable_deep $sel
 428         popvar sgs
 429         enable_deep_weak $sgs
 430         popvar var
 431     done
 432 }
 433
 434 enable_deep(){
 435     do_enable_deep $*
 436     enable $*
 437 }
 438
 439 enable_deep_weak(){
 440     do_enable_deep $*
 441     enable_weak $*
 442 }
 443
 444 enabled(){
 445     test "${1#!}" = "$1" && op== || op=!=
 446     eval test "x\$${1#!}" $op "xyes"
 447 }
 448
 449 disabled(){
 450     test "${1#!}" = "$1" && op== || op=!=
 451     eval test "x\$${1#!}" $op "xno"
 452 }
 453
 454 enabled_all(){
 455     for opt; do
 456         enabled $opt || return 1
 457     done
 458 }
 459
 460 disabled_all(){
 461     for opt; do
 462         disabled $opt || return 1
 463     done
 464 }
 465
 466 enabled_any(){
 467     for opt; do
 468         enabled $opt && return 0
 469     done
 470 }
 471
 472 disabled_any(){
 473     for opt; do
 474         disabled $opt && return 0
 475     done
 476     return 1
 477 }
 478
 479 set_default(){
 480     for opt; do
 481         eval : \${$opt:=\$${opt}_default}
 482     done
 483 }
 484
 485 is_in(){
 486     value=$1
 487     shift
 488     for var in $*; do
 489         [ $var = $value ] && return 0
 490     done
 491     return 1
 492 }
 493
 494 check_deps(){
 495     for cfg; do
 496         cfg="${cfg#!}"
 497         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 498         disabled ${cfg}_checking && continue
 499         enable ${cfg}_checking
 500
 501         eval dep_all="\$${cfg}_deps"
 502         eval dep_any="\$${cfg}_deps_any"
 503         eval dep_sel="\$${cfg}_select"
 504         eval dep_sgs="\$${cfg}_suggest"
 505         eval dep_ifa="\$${cfg}_if"
 506         eval dep_ifn="\$${cfg}_if_any"
 507
 508         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 509         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 510         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 511
 512         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 513         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 514         enabled_all  $dep_all || disable $cfg
 515         enabled_any  $dep_any || disable $cfg
 516         disabled_any $dep_sel && disable $cfg
 517
 518         if enabled $cfg; then
 519             eval dep_extralibs="\$${cfg}_extralibs"
 520             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 521             enable_deep $dep_sel
 522             enable_deep_weak $dep_sgs
 523         fi
 524
 525         disable ${cfg}_checking
 526     done
 527 }
 528
 529 print_config_h(){
 530     enabled $1 && v=1 || v=0
 531     echo "#define $2 $v"
 532 }
 533
 534 print_config_mak(){
 535     enabled $1 && v= || v=!
 536     echo "$v$2=yes"
 537 }
 538
 539 print_config_asm(){
 540     enabled $1 && echo "%define $2"
 541 }
 542
 543 print_config(){
 544     pfx=$1
 545     files=$2
 546     shift 2
 547     for cfg; do
 548         ucname="$(toupper $cfg)"
 549         for f in $files; do
 550             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 551         done
 552     done
 553 }
 554
 555 print_enabled(){
 556     test "$1" = -n && end=" " && shift || end="\n"
 557     suf=$1
 558     shift
 559     for v; do
 560         enabled $v && printf "%s$end" ${v%$suf};
 561     done
 562 }
 563
 564 append(){
 565     var=$1
 566     shift
 567     eval "$var=\"\$$var $*\""
 568 }
 569
 570 prepend(){
 571     var=$1
 572     shift
 573     eval "$var=\"$* \$$var\""
 574 }
 575
 576 add_cppflags(){
 577     append CPPFLAGS $($filter_cppflags "$@")
 578 }
 579
 580 add_cflags(){
 581     append CFLAGS $($filter_cflags "$@")
 582 }
 583
 584 add_cxxflags(){
 585     append CXXFLAGS $($filter_cflags "$@")
 586 }
 587
 588 add_asflags(){
 589     append ASFLAGS $($filter_asflags "$@")
 590 }
 591
 592 add_ldflags(){
 593     append LDFLAGS "$@"
 594 }
 595
 596 add_extralibs(){
 597     prepend extralibs "$@"
 598 }
 599
 600 check_cmd(){
 601     log "$@"
 602     "$@" >> $logfile 2>&1
 603 }
 604
 605 check_cc(){
 606     log check_cc "$@"
 607     cat > $TMPC
 608     log_file $TMPC
 609     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 610 }
 611
 612 check_cxx(){
 613     log check_cxx "$@"
 614     cat > $TMPCPP
 615     log_file $TMPCPP
 616     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
 617 }
 618
 619 check_cpp(){
 620     log check_cpp "$@"
 621     cat > $TMPC
 622     log_file $TMPC
 623     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 624 }
 625
 626 check_as(){
 627     log check_as "$@"
 628     cat > $TMPC
 629     log_file $TMPC
 630     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 631 }
 632
 633 check_asm(){
 634     log check_asm "$@"
 635     name="$1"
 636     code="$2"
 637     shift 2
 638     disable $name
 639     check_as "$@" <<EOF && enable $name
 640 void foo(void){ __asm__ volatile($code); }
 641 EOF
 642 }
 643
 644 check_yasm(){
 645     log check_yasm "$@"
 646     echo "$1" > $TMPS
 647     log_file $TMPS
 648     shift 1
 649     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 650 }
 651
 652 check_ld(){
 653     log check_ld "$@"
 654     type=$1
 655     shift 1
 656     flags=''
 657     libs=''
 658     for f; do
 659         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 660     done
 661     check_$type $($filter_cflags $flags) || return
 662     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 663 }
 664
 665 check_cppflags(){
 666     log check_cppflags "$@"
 667     set -- $($filter_cppflags "$@")
 668     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 669 int x;
 670 EOF
 671 }
 672
 673 check_cflags(){
 674     log check_cflags "$@"
 675     set -- $($filter_cflags "$@")
 676     check_cc "$@" <<EOF && append CFLAGS "$@"
 677 int x;
 678 EOF
 679 }
 680
 681 check_cxxflags(){
 682     log check_cxxflags "$@"
 683     set -- $($filter_cflags "$@")
 684     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 685 int x;
 686 EOF
 687 }
 688
 689 test_ldflags(){
 690     log test_ldflags "$@"
 691     check_ld "cc" "$@" <<EOF
 692 int main(void){ return 0; }
 693 EOF
 694 }
 695
 696 check_ldflags(){
 697     log check_ldflags "$@"
 698     test_ldflags "$@" && add_ldflags "$@"
 699 }
 700
 701 check_header(){
 702     log check_header "$@"
 703     header=$1
 704     shift
 705     disable_safe $header
 706     check_cpp "$@" <<EOF && enable_safe $header
 707 #include <$header>
 708 int x;
 709 EOF
 710 }
 711
 712 check_func(){
 713     log check_func "$@"
 714     func=$1
 715     shift
 716     disable $func
 717     check_ld "cc" "$@" <<EOF && enable $func
 718 extern int $func();
 719 int main(void){ $func(); }
 720 EOF
 721 }
 722
 723 check_mathfunc(){
 724     log check_mathfunc "$@"
 725     func=$1
 726     shift
 727     disable $func
 728     check_ld "cc" "$@" <<EOF && enable $func
 729 #include <math.h>
 730 float foo(float f) { return $func(f); }
 731 int main(void){ return 0; }
 732 EOF
 733 }
 734
 735 check_func_headers(){
 736     log check_func_headers "$@"
 737     headers=$1
 738     funcs=$2
 739     shift 2
 740     {
 741         for hdr in $headers; do
 742             echo "#include <$hdr>"
 743         done
 744         for func in $funcs; do
 745             echo "long check_$func(void) { return (long) $func; }"
 746         done
 747         echo "int main(void) { return 0; }"
 748     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 749 }
 750
 751 check_class_headers_cpp(){
 752     log check_class_headers_cpp "$@"
 753     headers=$1
 754     classes=$2
 755     shift 2
 756     {
 757         for hdr in $headers; do
 758             echo "#include <$hdr>"
 759         done
 760         echo "int main(void) { "
 761         i=1
 762         for class in $classes; do
 763             echo "$class obj$i;"
 764             i=$(expr $i + 1)
 765         done
 766         echo "return 0; }"
 767     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 768 }
 769
 770 check_cpp_condition(){
 771     log check_cpp_condition "$@"
 772     header=$1
 773     condition=$2
 774     shift 2
 775     check_cpp $($filter_cppflags "$@") <<EOF
 776 #include <$header>
 777 #if !($condition)
 778 #error "unsatisfied condition: $condition"
 779 #endif
 780 EOF
 781 }
 782
 783 check_lib(){
 784     log check_lib "$@"
 785     header="$1"
 786     func="$2"
 787     shift 2
 788     check_header $header && check_func $func "$@" && add_extralibs "$@"
 789 }
 790
 791 check_lib2(){
 792     log check_lib2 "$@"
 793     headers="$1"
 794     funcs="$2"
 795     shift 2
 796     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 797 }
 798
 799 check_lib_cpp(){
 800     log check_lib_cpp "$@"
 801     headers="$1"
 802     classes="$2"
 803     shift 2
 804     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 805 }
 806
 807 check_pkg_config(){
 808     log check_pkg_config "$@"
 809     pkg="$1"
 810     headers="$2"
 811     funcs="$3"
 812     shift 3
 813     $pkg_config --exists $pkg || return
 814     pkg_cflags=$($pkg_config --cflags $pkg)
 815     pkg_libs=$($pkg_config --libs $pkg)
 816     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 817         set_safe ${pkg}_cflags $pkg_cflags   &&
 818         set_safe ${pkg}_libs   $pkg_libs
 819 }
 820
 821 check_exec(){
 822     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 823 }
 824
 825 check_exec_crash(){
 826     code=$(cat)
 827
 828     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 829     # are safe but may not be available everywhere.  Thus we use
 830     # raise(SIGTERM) instead.  The check is run in a subshell so we
 831     # can redirect the "Terminated" message from the shell.  SIGBUS
 832     # is not defined by standard C so it is used conditionally.
 833
 834     (check_exec "$@") >> $logfile 2>&1 <<EOF
 835 #include <signal.h>
 836 static void sighandler(int sig){
 837     raise(SIGTERM);
 838 }
 839 int main(void){
 840     signal(SIGILL, sighandler);
 841     signal(SIGFPE, sighandler);
 842     signal(SIGSEGV, sighandler);
 843 #ifdef SIGBUS
 844     signal(SIGBUS, sighandler);
 845 #endif
 846     { $code }
 847 }
 848 EOF
 849 }
 850
 851 check_type(){
 852     log check_type "$@"
 853     headers=$1
 854     type=$2
 855     shift 2
 856     disable_safe "$type"
 857     incs=""
 858     for hdr in $headers; do
 859         incs="$incs
 860 #include <$hdr>"
 861     done
 862     check_cc "$@" <<EOF && enable_safe "$type"
 863 $incs
 864 $type v;
 865 EOF
 866 }
 867
 868 check_struct(){
 869     log check_type "$@"
 870     headers=$1
 871     struct=$2
 872     member=$3
 873     shift 3
 874     disable_safe "${struct}_${member}"
 875     incs=""
 876     for hdr in $headers; do
 877         incs="$incs
 878 #include <$hdr>"
 879     done
 880     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 881 $incs
 882 const void *p = &(($struct *)0)->$member;
 883 EOF
 884 }
 885
 886 require(){
 887     name="$1"
 888     header="$2"
 889     func="$3"
 890     shift 3
 891     check_lib $header $func "$@" || die "ERROR: $name not found"
 892 }
 893
 894 require2(){
 895     name="$1"
 896     headers="$2"
 897     func="$3"
 898     shift 3
 899     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 900 }
 901
 902 require_cpp(){
 903     name="$1"
 904     headers="$2"
 905     classes="$3"
 906     shift 3
 907     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
 908 }
 909
 910 require_pkg_config(){
 911     pkg="$1"
 912     check_pkg_config "$@" || die "ERROR: $pkg not found"
 913     add_cflags    $(get_safe ${pkg}_cflags)
 914     add_extralibs $(get_safe ${pkg}_libs)
 915 }
 916
 917 check_host_cc(){
 918     log check_host_cc "$@"
 919     cat > $TMPC
 920     log_file $TMPC
 921     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 922 }
 923
 924 check_host_cflags(){
 925     log check_host_cflags "$@"
 926     check_host_cc "$@" <<EOF && append host_cflags "$@"
 927 int x;
 928 EOF
 929 }
 930
 931 apply(){
 932     file=$1
 933     shift
 934     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 935 }
 936
 937 cp_if_changed(){
 938     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 939     mkdir -p "$(dirname $2)"
 940     cp -f "$1" "$2"
 941 }
 942
 943 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 944 # system-dependent things.
 945
 946 COMPONENT_LIST="
 947     bsfs
 948     decoders
 949     demuxers
 950     encoders
 951     filters
 952     hwaccels
 953     indevs
 954     muxers
 955     outdevs
 956     parsers
 957     protocols
 958 "
 959
 960 CONFIG_LIST="
 961     $COMPONENT_LIST
 962     aandct
 963     ac3dsp
 964     avcodec
 965     avdevice
 966     avfilter
 967     avformat
 968     avisynth
 969     bzlib
 970     dct
 971     doc
 972     dwt
 973     dxva2
 974     fastdiv
 975     ffmpeg
 976     avconv
 977     avplay
 978     avprobe
 979     avserver
 980     fft
 981     frei0r
 982     golomb
 983     gpl
 984     gray
 985     h264dsp
 986     h264pred
 987     hardcoded_tables
 988     huffman
 989     libdc1394
 990     libdirac
 991     libfaac
 992     libfreetype
 993     libgsm
 994     libmp3lame
 995     libnut
 996     libopencore_amrnb
 997     libopencore_amrwb
 998     libopencv
 999     libopenjpeg
1000     librtmp
1001     libschroedinger
1002     libspeex
1003     libstagefright_h264
1004     libtheora
1005     libvo_aacenc
1006     libvo_amrwbenc
1007     libvorbis
1008     libvpx
1009     libx264
1010     libxavs
1011     libxvid
1012     lpc
1013     lsp
1014     mdct
1015     memalign_hack
1016     mlib
1017     mpegaudiodsp
1018     network
1019     nonfree
1020     pic
1021     postproc
1022     rdft
1023     rtpdec
1024     runtime_cpudetect
1025     shared
1026     sinewin
1027     small
1028     sram
1029     static
1030     swscale
1031     swscale_alpha
1032     thumb
1033     vaapi
1034     vdpau
1035     version3
1036     x11grab
1037     zlib
1038 "
1039
1040 THREADS_LIST='
1041     pthreads
1042     w32threads
1043 '
1044
1045 ARCH_LIST='
1046     alpha
1047     arm
1048     avr32
1049     avr32_ap
1050     avr32_uc
1051     bfin
1052     ia64
1053     m68k
1054     mips
1055     mips64
1056     parisc
1057     ppc
1058     ppc64
1059     s390
1060     sh4
1061     sparc
1062     sparc64
1063     tomi
1064     x86
1065     x86_32
1066     x86_64
1067 '
1068
1069 ARCH_EXT_LIST='
1070     altivec
1071     amd3dnow
1072     amd3dnowext
1073     armv5te
1074     armv6
1075     armv6t2
1076     armvfp
1077     avx
1078     iwmmxt
1079     mmi
1080     mmx
1081     mmx2
1082     neon
1083     ppc4xx
1084     sse
1085     ssse3
1086     vfpv3
1087     vis
1088 '
1089
1090 HAVE_LIST_PUB='
1091     bigendian
1092     fast_unaligned
1093 '
1094
1095 HAVE_LIST="
1096     $ARCH_EXT_LIST
1097     $HAVE_LIST_PUB
1098     $THREADS_LIST
1099     aligned_stack
1100     alsa_asoundlib_h
1101     altivec_h
1102     arpa_inet_h
1103     attribute_may_alias
1104     attribute_packed
1105     bswap
1106     closesocket
1107     cmov
1108     dcbzl
1109     dev_bktr_ioctl_bt848_h
1110     dev_bktr_ioctl_meteor_h
1111     dev_ic_bt8xx_h
1112     dev_video_meteor_ioctl_meteor_h
1113     dev_video_bktr_ioctl_bt848_h
1114     dlfcn_h
1115     dlopen
1116     dos_paths
1117     ebp_available
1118     ebx_available
1119     exp2
1120     exp2f
1121     fast_64bit
1122     fast_clz
1123     fast_cmov
1124     fcntl
1125     fork
1126     getaddrinfo
1127     gethrtime
1128     GetProcessMemoryInfo
1129     GetProcessTimes
1130     getrusage
1131     gnu_as
1132     struct_rusage_ru_maxrss
1133     ibm_asm
1134     inet_aton
1135     inline_asm
1136     isatty
1137     ldbrx
1138     libdc1394_1
1139     libdc1394_2
1140     llrint
1141     llrintf
1142     local_aligned_16
1143     local_aligned_8
1144     localtime_r
1145     log2
1146     log2f
1147     loongson
1148     lrint
1149     lrintf
1150     lzo1x_999_compress
1151     machine_ioctl_bt848_h
1152     machine_ioctl_meteor_h
1153     malloc_h
1154     MapViewOfFile
1155     memalign
1156     mkstemp
1157     mmap
1158     posix_memalign
1159     round
1160     roundf
1161     sdl
1162     sdl_video_size
1163     setmode
1164     sndio_h
1165     socklen_t
1166     soundcard_h
1167     poll_h
1168     setrlimit
1169     strerror_r
1170     strptime
1171     strtok_r
1172     struct_addrinfo
1173     struct_ipv6_mreq
1174     struct_sockaddr_in6
1175     struct_sockaddr_sa_len
1176     struct_sockaddr_storage
1177     symver
1178     symver_gnu_asm
1179     symver_asm_label
1180     sys_mman_h
1181     sys_resource_h
1182     sys_select_h
1183     sys_soundcard_h
1184     sys_videoio_h
1185     threads
1186     trunc
1187     truncf
1188     vfp_args
1189     VirtualAlloc
1190     winsock2_h
1191     xform_asm
1192     xmm_clobbers
1193     yasm
1194 "
1195
1196 # options emitted with CONFIG_ prefix but not available on command line
1197 CONFIG_EXTRA="
1198     avutil
1199     gplv3
1200     lgplv3
1201 "
1202
1203 CMDLINE_SELECT="
1204     $ARCH_EXT_LIST
1205     $CONFIG_LIST
1206     $THREADS_LIST
1207     asm
1208     cross_compile
1209     debug
1210     extra_warnings
1211     logging
1212     optimizations
1213     symver
1214     yasm
1215 "
1216
1217 PATHS_LIST='
1218     bindir
1219     datadir
1220     incdir
1221     libdir
1222     mandir
1223     prefix
1224     shlibdir
1225 '
1226
1227 CMDLINE_SET="
1228     $PATHS_LIST
1229     ar
1230     arch
1231     as
1232     build_suffix
1233     cc
1234     cpu
1235     cross_prefix
1236     cxx
1237     dep_cc
1238     extra_version
1239     host_cc
1240     host_cflags
1241     host_ldflags
1242     host_libs
1243     host_os
1244     ld
1245     logfile
1246     malloc_prefix
1247     nm
1248     optflags
1249     pkg_config
1250     samples
1251     sysinclude
1252     sysroot
1253     target_exec
1254     target_os
1255     target_path
1256 "
1257
1258 CMDLINE_APPEND="
1259     extra_cflags
1260     extra_cxxflags
1261 "
1262
1263 # code dependency declarations
1264
1265 # architecture extensions
1266
1267 armv5te_deps="arm"
1268 armv6_deps="arm"
1269 armv6t2_deps="arm"
1270 armvfp_deps="arm"
1271 iwmmxt_deps="arm"
1272 neon_deps="arm"
1273 vfpv3_deps="armvfp"
1274
1275 mmi_deps="mips"
1276
1277 altivec_deps="ppc"
1278 ppc4xx_deps="ppc"
1279
1280 vis_deps="sparc"
1281
1282 x86_64_suggest="cmov fast_cmov"
1283 amd3dnow_deps="mmx"
1284 amd3dnowext_deps="amd3dnow"
1285 mmx_deps="x86"
1286 mmx2_deps="mmx"
1287 sse_deps="mmx"
1288 ssse3_deps="sse"
1289 avx_deps="ssse3"
1290
1291 aligned_stack_if_any="ppc x86"
1292 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1293 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1294 fast_unaligned_if_any="armv6 ppc x86"
1295
1296 need_memalign="altivec neon sse"
1297 inline_asm_deps="!tms470"
1298
1299 symver_if_any="symver_asm_label symver_gnu_asm"
1300
1301 # subsystems
1302 dct_select="rdft"
1303 mdct_select="fft"
1304 rdft_select="fft"
1305 mpegaudiodsp_select="dct"
1306
1307 # decoders / encoders / hardware accelerators
1308 aac_decoder_select="mdct sinewin"
1309 aac_encoder_select="mdct sinewin"
1310 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1311 ac3_decoder_select="mdct ac3dsp ac3_parser"
1312 ac3_encoder_select="mdct ac3dsp"
1313 ac3_fixed_encoder_select="mdct ac3dsp"
1314 alac_encoder_select="lpc"
1315 amrnb_decoder_select="lsp"
1316 amrwb_decoder_select="lsp"
1317 atrac1_decoder_select="mdct sinewin"
1318 atrac3_decoder_select="mdct"
1319 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1320 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1321 cavs_decoder_select="golomb"
1322 cook_decoder_select="mdct sinewin"
1323 cscd_decoder_suggest="zlib"
1324 dca_decoder_select="mdct"
1325 dnxhd_encoder_select="aandct"
1326 dxa_decoder_select="zlib"
1327 eac3_decoder_select="ac3_decoder"
1328 eac3_encoder_select="mdct ac3dsp"
1329 eamad_decoder_select="aandct"
1330 eatgq_decoder_select="aandct"
1331 eatqi_decoder_select="aandct"
1332 ffv1_decoder_select="golomb"
1333 flac_decoder_select="golomb"
1334 flac_encoder_select="golomb lpc"
1335 flashsv_decoder_select="zlib"
1336 flashsv_encoder_select="zlib"
1337 flashsv2_decoder_select="zlib"
1338 flv_decoder_select="h263_decoder"
1339 flv_encoder_select="h263_encoder"
1340 fraps_decoder_select="huffman"
1341 h261_encoder_select="aandct"
1342 h263_decoder_select="h263_parser"
1343 h263_encoder_select="aandct"
1344 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1345 h263i_decoder_select="h263_decoder"
1346 h263p_encoder_select="h263_encoder"
1347 h264_decoder_select="golomb h264dsp h264pred"
1348 h264_dxva2_hwaccel_deps="dxva2api_h"
1349 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1350 h264_vaapi_hwaccel_select="vaapi"
1351 h264_vdpau_decoder_select="vdpau h264_decoder"
1352 imc_decoder_select="fft mdct sinewin"
1353 jpegls_decoder_select="golomb"
1354 jpegls_encoder_select="golomb"
1355 ljpeg_encoder_select="aandct"
1356 loco_decoder_select="golomb"
1357 mjpeg_encoder_select="aandct"
1358 mlp_decoder_select="mlp_parser"
1359 mp1_decoder_select="mpegaudiodsp"
1360 mp2_decoder_select="mpegaudiodsp"
1361 mp3adu_decoder_select="mpegaudiodsp"
1362 mp3_decoder_select="mpegaudiodsp"
1363 mp3on4_decoder_select="mpegaudiodsp"
1364 mp1float_decoder_select="mpegaudiodsp"
1365 mp2float_decoder_select="mpegaudiodsp"
1366 mp3adufloat_decoder_select="mpegaudiodsp"
1367 mp3float_decoder_select="mpegaudiodsp"
1368 mp3on4float_decoder_select="mpegaudiodsp"
1369 mpeg1video_encoder_select="aandct"
1370 mpeg2video_encoder_select="aandct"
1371 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1372 mpeg4_encoder_select="h263_encoder"
1373 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1374 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1375 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1376 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1377 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1378 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1379 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1380 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1381 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1382 msmpeg4v1_decoder_select="h263_decoder"
1383 msmpeg4v1_encoder_select="h263_encoder"
1384 msmpeg4v2_decoder_select="h263_decoder"
1385 msmpeg4v2_encoder_select="h263_encoder"
1386 msmpeg4v3_decoder_select="h263_decoder"
1387 msmpeg4v3_encoder_select="h263_encoder"
1388 nellymoser_decoder_select="mdct sinewin"
1389 nellymoser_encoder_select="mdct sinewin"
1390 png_decoder_select="zlib"
1391 png_encoder_select="zlib"
1392 qcelp_decoder_select="lsp"
1393 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1394 ra_144_encoder_select="lpc"
1395 rv10_decoder_select="h263_decoder"
1396 rv10_encoder_select="h263_encoder"
1397 rv20_decoder_select="h263_decoder"
1398 rv20_encoder_select="h263_encoder"
1399 rv30_decoder_select="golomb h264pred"
1400 rv40_decoder_select="golomb h264pred"
1401 shorten_decoder_select="golomb"
1402 sipr_decoder_select="lsp"
1403 snow_decoder_select="dwt"
1404 snow_encoder_select="aandct dwt"
1405 svq1_encoder_select="aandct"
1406 svq3_decoder_select="golomb h264dsp h264pred"
1407 svq3_decoder_suggest="zlib"
1408 theora_decoder_select="vp3_decoder"
1409 tiff_decoder_suggest="zlib"
1410 tiff_encoder_suggest="zlib"
1411 truehd_decoder_select="mlp_decoder"
1412 tscc_decoder_select="zlib"
1413 twinvq_decoder_select="mdct lsp sinewin"
1414 vc1_decoder_select="h263_decoder"
1415 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1416 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1417 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1418 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1419 vc1image_decoder_select="vc1_decoder"
1420 vorbis_decoder_select="mdct"
1421 vorbis_encoder_select="mdct"
1422 vp6_decoder_select="huffman"
1423 vp6a_decoder_select="vp6_decoder"
1424 vp6f_decoder_select="vp6_decoder"
1425 vp8_decoder_select="h264pred"
1426 wmapro_decoder_select="mdct sinewin"
1427 wmav1_decoder_select="mdct sinewin"
1428 wmav1_encoder_select="mdct sinewin"
1429 wmav2_decoder_select="mdct sinewin"
1430 wmav2_encoder_select="mdct sinewin"
1431 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1432 wmv1_decoder_select="h263_decoder"
1433 wmv1_encoder_select="h263_encoder"
1434 wmv2_decoder_select="h263_decoder"
1435 wmv2_encoder_select="h263_encoder"
1436 wmv3_decoder_select="vc1_decoder"
1437 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1438 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1439 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1440 wmv3image_decoder_select="wmv3_decoder"
1441 zlib_decoder_select="zlib"
1442 zlib_encoder_select="zlib"
1443 zmbv_decoder_select="zlib"
1444 zmbv_encoder_select="zlib"
1445
1446 vaapi_deps="va_va_h"
1447 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1448
1449 # parsers
1450 h264_parser_select="golomb h264dsp h264pred"
1451
1452 # external libraries
1453 libdirac_decoder_deps="libdirac !libschroedinger"
1454 libdirac_encoder_deps="libdirac"
1455 libfaac_encoder_deps="libfaac"
1456 libgsm_decoder_deps="libgsm"
1457 libgsm_encoder_deps="libgsm"
1458 libgsm_ms_decoder_deps="libgsm"
1459 libgsm_ms_encoder_deps="libgsm"
1460 libmp3lame_encoder_deps="libmp3lame"
1461 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1462 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1463 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1464 libopenjpeg_decoder_deps="libopenjpeg"
1465 libschroedinger_decoder_deps="libschroedinger"
1466 libschroedinger_encoder_deps="libschroedinger"
1467 libspeex_decoder_deps="libspeex"
1468 libstagefright_h264_decoder_deps="libstagefright_h264"
1469 libtheora_encoder_deps="libtheora"
1470 libvo_aacenc_encoder_deps="libvo_aacenc"
1471 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1472 libvorbis_encoder_deps="libvorbis"
1473 libvpx_decoder_deps="libvpx"
1474 libvpx_encoder_deps="libvpx"
1475 libx264_encoder_deps="libx264"
1476 libxavs_encoder_deps="libxavs"
1477 libxvid_encoder_deps="libxvid"
1478
1479 # demuxers / muxers
1480 ac3_demuxer_select="ac3_parser"
1481 asf_stream_muxer_select="asf_muxer"
1482 avisynth_demuxer_deps="avisynth"
1483 dirac_demuxer_select="dirac_parser"
1484 eac3_demuxer_select="ac3_parser"
1485 flac_demuxer_select="flac_parser"
1486 ipod_muxer_select="mov_muxer"
1487 libnut_demuxer_deps="libnut"
1488 libnut_muxer_deps="libnut"
1489 matroska_audio_muxer_select="matroska_muxer"
1490 matroska_demuxer_suggest="zlib bzlib"
1491 mov_demuxer_suggest="zlib"
1492 mp3_demuxer_select="mpegaudio_parser"
1493 mp4_muxer_select="mov_muxer"
1494 mpegtsraw_demuxer_select="mpegts_demuxer"
1495 mxf_d10_muxer_select="mxf_muxer"
1496 ogg_demuxer_select="golomb"
1497 psp_muxer_select="mov_muxer"
1498 rtp_demuxer_select="sdp_demuxer"
1499 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1500 rtsp_demuxer_select="http_protocol rtpdec"
1501 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1502 sap_demuxer_select="sdp_demuxer"
1503 sap_muxer_select="rtp_muxer rtp_protocol"
1504 sdp_demuxer_select="rtpdec"
1505 spdif_muxer_select="aac_parser"
1506 tg2_muxer_select="mov_muxer"
1507 tgp_muxer_select="mov_muxer"
1508 w64_demuxer_deps="wav_demuxer"
1509
1510 # indevs / outdevs
1511 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1512 alsa_outdev_deps="alsa_asoundlib_h"
1513 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1514 dv1394_indev_deps="dv1394 dv_demuxer"
1515 fbdev_indev_deps="linux_fb_h"
1516 jack_indev_deps="jack_jack_h"
1517 libdc1394_indev_deps="libdc1394"
1518 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1519 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1520 sndio_indev_deps="sndio_h"
1521 sndio_outdev_deps="sndio_h"
1522 v4l_indev_deps="linux_videodev_h"
1523 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1524 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1525 vfwcap_indev_extralibs="-lavicap32"
1526 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1527 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1528
1529 # protocols
1530 gopher_protocol_deps="network"
1531 http_protocol_deps="network"
1532 http_protocol_select="tcp_protocol"
1533 mmsh_protocol_select="http_protocol"
1534 mmst_protocol_deps="network"
1535 rtmp_protocol_select="tcp_protocol"
1536 rtp_protocol_select="udp_protocol"
1537 tcp_protocol_deps="network"
1538 udp_protocol_deps="network"
1539
1540 # filters
1541 blackframe_filter_deps="gpl"
1542 cropdetect_filter_deps="gpl"
1543 drawtext_filter_deps="libfreetype"
1544 frei0r_filter_deps="frei0r dlopen strtok_r"
1545 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1546 hqdn3d_filter_deps="gpl"
1547 ocv_filter_deps="libopencv"
1548 scale_filter_deps="swscale"
1549 yadif_filter_deps="gpl"
1550
1551 # libraries
1552 avdevice_deps="avcodec avformat"
1553 avformat_deps="avcodec"
1554 postproc_deps="gpl"
1555
1556 # programs
1557 ffmpeg_deps="avcodec avformat swscale"
1558 ffmpeg_select="buffer_filter"
1559 avconv_deps="avcodec avformat swscale"
1560 avconv_select="buffer_filter"
1561 avplay_deps="avcodec avformat swscale sdl"
1562 avplay_select="rdft"
1563 avprobe_deps="avcodec avformat"
1564 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1565 avserver_extralibs='$ldl'
1566
1567 doc_deps="texi2html"
1568
1569 # tests
1570
1571 test_deps(){
1572     suf1=$1
1573     suf2=$2
1574     shift 2
1575     for v; do
1576         dep=${v%=*}
1577         tests=${v#*=}
1578         for name in ${tests}; do
1579             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1580         done
1581     done
1582 }
1583
1584 test_deps _encoder _decoder                                             \
1585     adpcm_g726=g726                                                     \
1586     adpcm_ima_qt                                                        \
1587     adpcm_ima_wav                                                       \
1588     adpcm_ms                                                            \
1589     adpcm_swf                                                           \
1590     adpcm_yamaha=adpcm_yam                                              \
1591     alac                                                                \
1592     asv1                                                                \
1593     asv2                                                                \
1594     bmp                                                                 \
1595     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1596     dvvideo="dv dv50"                                                   \
1597     ffv1                                                                \
1598     flac                                                                \
1599     flashsv                                                             \
1600     flv                                                                 \
1601     gif                                                                 \
1602     h261                                                                \
1603     h263="h263 h263p"                                                   \
1604     huffyuv                                                             \
1605     jpegls                                                              \
1606     mjpeg="jpg mjpeg ljpeg"                                             \
1607     mp2                                                                 \
1608     mpeg1video="mpeg mpeg1b"                                            \
1609     mpeg2video="mpeg2 mpeg2thread"                                      \
1610     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1611     msmpeg4v3=msmpeg4                                                   \
1612     msmpeg4v2                                                           \
1613     pbm=pbmpipe                                                         \
1614     pcx                                                                 \
1615     pgm="pgm pgmpipe"                                                   \
1616     png                                                                 \
1617     ppm="ppm ppmpipe"                                                   \
1618     rawvideo="rgb yuv"                                                  \
1619     roq                                                                 \
1620     rv10                                                                \
1621     rv20                                                                \
1622     sgi                                                                 \
1623     snow="snow snowll"                                                  \
1624     svq1                                                                \
1625     targa=tga                                                           \
1626     tiff                                                                \
1627     wmav1                                                               \
1628     wmav2                                                               \
1629     wmv1                                                                \
1630     wmv2                                                                \
1631
1632 test_deps _muxer _demuxer                                               \
1633     aiff                                                                \
1634     pcm_alaw=alaw                                                       \
1635     asf                                                                 \
1636     au                                                                  \
1637     avi                                                                 \
1638     dv=dv_fmt                                                           \
1639     ffm                                                                 \
1640     flv=flv_fmt                                                         \
1641     gxf                                                                 \
1642     matroska=mkv                                                        \
1643     mmf                                                                 \
1644     mov                                                                 \
1645     pcm_mulaw=mulaw                                                     \
1646     mxf="mxf mxf_d10"                                                   \
1647     nut                                                                 \
1648     ogg                                                                 \
1649     rawvideo=pixfmt                                                     \
1650     rm                                                                  \
1651     swf                                                                 \
1652     mpegts=ts                                                           \
1653     voc                                                                 \
1654     wav                                                                 \
1655     yuv4mpegpipe=yuv4mpeg                                               \
1656
1657 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1658 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1659
1660 # default parameters
1661
1662 logfile="config.log"
1663
1664 # installation paths
1665 prefix_default="/usr/local"
1666 bindir_default='${prefix}/bin'
1667 datadir_default='${prefix}/share/avconv'
1668 incdir_default='${prefix}/include'
1669 libdir_default='${prefix}/lib'
1670 mandir_default='${prefix}/share/man'
1671 shlibdir_default="$libdir_default"
1672
1673 # toolchain
1674 ar_default="ar"
1675 cc_default="gcc"
1676 cxx_default="g++"
1677 cc_version=\"unknown\"
1678 host_cc_default="gcc"
1679 ln_s="ln -sf"
1680 nm_default="nm"
1681 objformat="elf"
1682 pkg_config_default=pkg-config
1683 ranlib="ranlib"
1684 yasmexe="yasm"
1685 nogas=":"
1686
1687 nm_opts='-g'
1688
1689 # machine
1690 arch_default=$(uname -m)
1691 cpu="generic"
1692
1693 # OS
1694 target_os_default=$(tolower $(uname -s))
1695 host_os=$target_os_default
1696
1697 # configurable options
1698 enable avcodec
1699 enable avdevice
1700 enable avfilter
1701 enable avformat
1702 enable avutil
1703 enable asm
1704 enable debug
1705 enable doc
1706 enable fastdiv
1707 enable ffmpeg
1708 enable avconv
1709 enable avplay
1710 enable avprobe
1711 enable avserver
1712 enable network
1713 enable optimizations
1714 enable postproc
1715 enable protocols
1716 enable static
1717 enable swscale
1718 enable swscale_alpha
1719
1720 # build settings
1721 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1722 AVSERVERLDFLAGS=-Wl,-E
1723 LIBPREF="lib"
1724 LIBSUF=".a"
1725 FULLNAME='$(NAME)$(BUILDSUF)'
1726 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1727 SLIBPREF="lib"
1728 SLIBSUF=".so"
1729 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1730 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1731 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1732 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1733 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1734 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1735
1736 AS_O='-o $@'
1737 CC_O='-o $@'
1738 CXX_O='-o $@'
1739
1740 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1741 host_libs='-lm'
1742
1743 target_path='$(CURDIR)'
1744
1745 # since the object filename is not given with the -MM flag, the compiler
1746 # is only able to print the basename, and we must add the path ourselves
1747 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1748 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1749
1750 # find source path
1751 if test -f configure; then
1752     source_path=.
1753 else
1754     source_path=$(cd $(dirname "$0"); pwd)
1755     echo "$source_path" | grep -q '[[:blank:]]' &&
1756         die "Out of tree builds are impossible with whitespace in source path."
1757     test -e "$source_path/config.h" &&
1758         die "Out of tree builds are impossible with config.h in source dir."
1759 fi
1760
1761 for v in "$@"; do
1762     r=${v#*=}
1763     l=${v%"$r"}
1764     r=$(sh_quote "$r")
1765     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1766 done
1767
1768 find_things(){
1769     thing=$1
1770     pattern=$2
1771     file=$source_path/$3
1772     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1773 }
1774
1775 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1776 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1777 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1778 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1779 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1780 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1781 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1782 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1783 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1784 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1785 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1786
1787 find_tests(){
1788     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1789 }
1790
1791 ACODEC_TESTS=$(find_tests acodec)
1792 VCODEC_TESTS=$(find_tests vsynth1)
1793 LAVF_TESTS=$(find_tests lavf)
1794 LAVFI_TESTS=$(find_tests lavfi)
1795 SEEK_TESTS=$(find_tests seek seek_)
1796
1797 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1798
1799 for n in $COMPONENT_LIST; do
1800     v=$(toupper ${n%s})_LIST
1801     eval enable \$$v
1802     eval ${n}_if_any="\$$v"
1803 done
1804
1805 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1806
1807 die_unknown(){
1808     echo "Unknown option \"$1\"."
1809     echo "See $0 --help for available options."
1810     exit 1
1811 }
1812
1813 show_list() {
1814     suffix=_$1
1815     shift
1816     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1817     exit 0
1818 }
1819
1820 for opt do
1821     optval="${opt#*=}"
1822     case "$opt" in
1823     --extra-ldflags=*) add_ldflags $optval
1824     ;;
1825     --extra-libs=*) add_extralibs $optval
1826     ;;
1827     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1828     ;;
1829     --enable-debug=*) debuglevel="$optval"
1830     ;;
1831     --disable-everything)
1832     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1833     ;;
1834     --enable-*=*|--disable-*=*)
1835     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1836     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1837     eval list=\$$(toupper $thing)_LIST
1838     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1839     $action $(filter "$name" $list)
1840     ;;
1841     --enable-?*|--disable-?*)
1842     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1843     if is_in $option $COMPONENT_LIST; then
1844         test $action = disable && action=unset
1845         eval $action \$$(toupper ${option%s})_LIST
1846     elif is_in $option $CMDLINE_SELECT; then
1847         $action $option
1848     else
1849         die_unknown $opt
1850     fi
1851     ;;
1852     --list-*)
1853         NAME="${opt#--list-}"
1854         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1855         NAME=${NAME%s}
1856         eval show_list $NAME \$$(toupper $NAME)_LIST
1857     ;;
1858     --help|-h) show_help
1859     ;;
1860     *)
1861     optname="${opt%%=*}"
1862     optname="${optname#--}"
1863     optname=$(echo "$optname" | sed 's/-/_/g')
1864     if is_in $optname $CMDLINE_SET; then
1865         eval $optname='$optval'
1866     elif is_in $optname $CMDLINE_APPEND; then
1867         append $optname "$optval"
1868     else
1869          die_unknown $opt
1870     fi
1871     ;;
1872     esac
1873 done
1874
1875 disabled logging && logfile=/dev/null
1876
1877 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1878 set >> $logfile
1879
1880 test -n "$cross_prefix" && enable cross_compile
1881
1882 if enabled cross_compile; then
1883     test -n "$arch" && test -n "$target_os" ||
1884         die "Must specify target arch and OS when cross-compiling"
1885 fi
1886
1887 set_default arch target_os
1888
1889 ar_default="${cross_prefix}${ar_default}"
1890 cc_default="${cross_prefix}${cc_default}"
1891 cxx_default="${cross_prefix}${cxx_default}"
1892 nm_default="${cross_prefix}${nm_default}"
1893 pkg_config_default="${cross_prefix}${pkg_config_default}"
1894 ranlib="${cross_prefix}${ranlib}"
1895
1896 sysinclude_default="${sysroot}/usr/include"
1897
1898 set_default cc cxx nm pkg_config sysinclude
1899 enabled cross_compile || host_cc_default=$cc
1900 set_default host_cc
1901
1902 if ! $pkg_config --version >/dev/null 2>&1; then
1903     warn "$pkg_config not found, library detection may fail."
1904     pkg_config=false
1905 fi
1906
1907 exesuf() {
1908     case $1 in
1909         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1910     esac
1911 }
1912
1913 EXESUF=$(exesuf $target_os)
1914 HOSTEXESUF=$(exesuf $host_os)
1915
1916 # set temporary file name
1917 : ${TMPDIR:=$TEMPDIR}
1918 : ${TMPDIR:=$TMP}
1919 : ${TMPDIR:=/tmp}
1920
1921 if ! check_cmd mktemp -u XXXXXX; then
1922     # simple replacement for missing mktemp
1923     # NOT SAFE FOR GENERAL USE
1924     mktemp(){
1925         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1926     }
1927 fi
1928
1929 tmpfile(){
1930     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1931         (set -C; exec > $tmp) 2>/dev/null ||
1932         die "Unable to create temporary file in $TMPDIR."
1933     append TMPFILES $tmp
1934     eval $1=$tmp
1935 }
1936
1937 trap 'rm -f -- $TMPFILES' EXIT
1938
1939 tmpfile TMPC  .c
1940 tmpfile TMPCPP .cpp
1941 tmpfile TMPE  $EXESUF
1942 tmpfile TMPH  .h
1943 tmpfile TMPO  .o
1944 tmpfile TMPS  .S
1945 tmpfile TMPV  .ver
1946 tmpfile TMPSH .sh
1947 tmpfile TMPASM .asm
1948
1949 unset -f mktemp
1950
1951 chmod +x $TMPE
1952
1953 # make sure we can execute files in $TMPDIR
1954 cat > $TMPSH 2>> $logfile <<EOF
1955 #! /bin/sh
1956 EOF
1957 chmod +x $TMPSH >> $logfile 2>&1
1958 if ! $TMPSH >> $logfile 2>&1; then
1959     cat <<EOF
1960 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1961 variable to another directory and make sure that it is not mounted noexec.
1962 EOF
1963     die "Sanity test failed."
1964 fi
1965
1966 filter_cflags=echo
1967 filter_cppflags=echo
1968 filter_asflags=echo
1969
1970 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1971     cc_type=llvm_gcc
1972     cc_version=__VERSION__
1973     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1974     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1975     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1976     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1977     speed_cflags='-O3'
1978     size_cflags='-Os'
1979 elif $cc -v 2>&1 | grep -qi ^gcc; then
1980     cc_type=gcc
1981     cc_version=__VERSION__
1982     gcc_version=$($cc --version | head -n1)
1983     gcc_basever=$($cc -dumpversion)
1984     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1985     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1986     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1987     if ! $cc -dumpversion | grep -q '^2\.'; then
1988         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1989         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1990     fi
1991     speed_cflags='-O3'
1992     size_cflags='-Os'
1993 elif $cc --version 2>/dev/null | grep -q Intel; then
1994     cc_type=icc
1995     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1996     cc_ident=$($cc --version | head -n1)
1997     icc_version=$($cc -dumpversion)
1998     CC_DEPFLAGS='-MMD'
1999     AS_DEPFLAGS='-MMD'
2000     speed_cflags='-O3'
2001     size_cflags='-Os'
2002     noopt_cflags='-O1'
2003 elif $cc -v 2>&1 | grep -q xlc; then
2004     cc_type=xlc
2005     cc_version="AV_STRINGIFY(__IBMC__)"
2006     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2007     speed_cflags='-O5'
2008     size_cflags='-O5 -qcompact'
2009 elif $cc -V 2>/dev/null | grep -q Compaq; then
2010     cc_type=ccc
2011     cc_version="AV_STRINGIFY(__DECC_VER)"
2012     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2013     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2014     debuglevel=3
2015     add_ldflags -Wl,-z,now # calls to libots crash without this
2016     speed_cflags='-fast'
2017     size_cflags='-O1'
2018 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2019     test -d "$sysroot" || die "No valid sysroot specified."
2020     cc_type=armcc
2021     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2022     cc_ident=$($cc --vsn | head -n1)
2023     armcc_conf="$PWD/armcc.conf"
2024     $cc --arm_linux_configure                 \
2025         --arm_linux_config_file="$armcc_conf" \
2026         --configure_sysroot="$sysroot"        \
2027         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2028         die "Error creating armcc configuration file."
2029     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2030     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2031     as_default="${cross_prefix}gcc"
2032     CC_DEPFLAGS='-MMD'
2033     AS_DEPFLAGS='-MMD'
2034     speed_cflags='-O3'
2035     size_cflags='-Os'
2036     filter_asflags="filter_out -W${armcc_opt}*"
2037 elif $cc -version 2>/dev/null | grep -q TMS470; then
2038     cc_type=tms470
2039     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2040     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2041     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2042     CC_O='-fr=$(@D)'
2043     as_default="${cross_prefix}gcc"
2044     ld_default="${cross_prefix}gcc"
2045     TMPO=$(basename $TMPC .c).o
2046     append TMPFILES $TMPO
2047     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2048     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2049     AS_DEPFLAGS='-MMD'
2050     speed_cflags='-O3 -mf=5'
2051     size_cflags='-O3 -mf=2'
2052     filter_cflags=tms470_flags
2053     tms470_flags(){
2054         for flag; do
2055             case $flag in
2056                 -march=*|-mcpu=*)
2057                     case "${flag#*=}" in
2058                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2059                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2060                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2061                         armv6*|arm11*)          echo -mv=6   ;;
2062                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2063                                                 echo -mv=5e  ;;
2064                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2065                     esac
2066                     ;;
2067                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2068                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2069                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2070                 -msoft-float)   echo --float_support=vfplib       ;;
2071                 -O[0-3]|-mf=*)  echo $flag                        ;;
2072                 -g)             echo -g -mn                       ;;
2073                 -pds=*)         echo $flag                        ;;
2074             esac
2075         done
2076     }
2077 elif $cc -v 2>&1 | grep -q clang; then
2078     cc_type=clang
2079     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2080         cc_version=__clang_version__ || cc_version=__VERSION__
2081     cc_ident=$($cc --version | head -n1)
2082     CC_DEPFLAGS='-MMD'
2083     AS_DEPFLAGS='-MMD'
2084     speed_cflags='-O3'
2085     size_cflags='-Os'
2086 elif $cc -V 2>&1 | grep -q Sun; then
2087     cc_type=suncc
2088     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2089     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2090     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2091     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2092     add_ldflags -xc99
2093     speed_cflags='-O5'
2094     size_cflags='-O5 -xspace'
2095     filter_cflags=suncc_flags
2096     suncc_flags(){
2097         for flag; do
2098             case $flag in
2099                 -march=*|-mcpu=*)
2100                     case "${flag#*=}" in
2101                         native)                   echo -xtarget=native       ;;
2102                         v9|niagara)               echo -xarch=sparc          ;;
2103                         ultrasparc)               echo -xarch=sparcvis       ;;
2104                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2105                         i586|pentium)             echo -xchip=pentium        ;;
2106                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2107                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2108                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2109                         pentium4*)          echo -xtarget=pentium4           ;;
2110                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2111                         *-sse3)             echo -xarch=sse3                 ;;
2112                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2113                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2114                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2115                         k8|opteron|athlon64|athlon-fx)
2116                                                   echo -xarch=sse2a          ;;
2117                         athlon*)                  echo -xarch=pentium_proa   ;;
2118                     esac
2119                     ;;
2120                 -std=c99)             echo -xc99              ;;
2121                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2122                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2123                 -W*,*)                echo $flag              ;;
2124                 -f*-*|-W*)                                    ;;
2125                 *)                    echo $flag              ;;
2126             esac
2127         done
2128     }
2129 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2130     cc_type=pathscale
2131     cc_version=__PATHSCALE__
2132     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2133     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2134     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2135     speed_cflags='-O2'
2136     size_cflags='-Os'
2137     filter_cflags='filter_out -Wdisabled-optimization'
2138 elif $cc -v 2>&1 | grep -q Open64; then
2139     cc_type=open64
2140     cc_version=__OPEN64__
2141     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2142     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2143     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2144     speed_cflags='-O2'
2145     size_cflags='-Os'
2146     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2147 fi
2148
2149 test -n "$cc_type" && enable $cc_type ||
2150     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2151
2152 : ${as_default:=$cc}
2153 : ${dep_cc_default:=$cc}
2154 : ${ld_default:=$cc}
2155 set_default ar as dep_cc ld
2156
2157 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2158 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2159 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2160
2161 add_cflags $extra_cflags
2162 add_cxxflags $extra_cxxflags
2163 add_asflags $extra_cflags
2164
2165 if test -n "$sysroot"; then
2166     case "$cc_type" in
2167         gcc|llvm_gcc|clang)
2168             add_cppflags --sysroot="$sysroot"
2169             add_ldflags --sysroot="$sysroot"
2170         ;;
2171         tms470)
2172             add_cppflags -I"$sysinclude"
2173             add_ldflags  --sysroot="$sysroot"
2174         ;;
2175     esac
2176 fi
2177
2178 if test "$cpu" = host; then
2179     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2180
2181     case "$cc_type" in
2182         gcc|llvm_gcc)
2183             check_native(){
2184                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2185                 sed -n "/cc1.*$1=/{
2186                             s/.*$1=\\([^ ]*\\).*/\\1/
2187                             p
2188                             q
2189                         }" $TMPE
2190             }
2191             cpu=$(check_native -march || check_native -mcpu)
2192         ;;
2193     esac
2194
2195     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2196 fi
2197
2198 # Deal with common $arch aliases
2199 case "$arch" in
2200     arm*)
2201         arch="arm"
2202     ;;
2203     mips|mipsel|IP*)
2204         arch="mips"
2205     ;;
2206     mips64*)
2207         arch="mips"
2208         subarch="mips64"
2209     ;;
2210     parisc|hppa)
2211         arch="parisc"
2212     ;;
2213     parisc64|hppa64)
2214         arch="parisc"
2215         subarch="parisc64"
2216     ;;
2217     "Power Macintosh"|ppc|powerpc)
2218         arch="ppc"
2219     ;;
2220     ppc64|powerpc64)
2221         arch="ppc"
2222         subarch="ppc64"
2223     ;;
2224     s390|s390x)
2225         arch="s390"
2226     ;;
2227     sh4|sh)
2228         arch="sh4"
2229     ;;
2230     sun4u|sparc64)
2231         arch="sparc"
2232         subarch="sparc64"
2233     ;;
2234     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2235         arch="x86"
2236     ;;
2237 esac
2238
2239 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2240 enable $arch
2241
2242 # Add processor-specific flags
2243 if test "$cpu" = generic; then
2244     : do nothing
2245 elif enabled ppc; then
2246
2247     case $(tolower $cpu) in
2248         601|ppc601|powerpc601)
2249             cpuflags="-mcpu=601"
2250             disable altivec
2251         ;;
2252         603*|ppc603*|powerpc603*)
2253             cpuflags="-mcpu=603"
2254             disable altivec
2255         ;;
2256         604*|ppc604*|powerpc604*)
2257             cpuflags="-mcpu=604"
2258             disable altivec
2259         ;;
2260         g3|75*|ppc75*|powerpc75*)
2261             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2262             disable altivec
2263         ;;
2264         g4|745*|ppc745*|powerpc745*)
2265             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2266         ;;
2267         74*|ppc74*|powerpc74*)
2268             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2269         ;;
2270         g5|970|ppc970|powerpc970|power4*)
2271             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2272         ;;
2273         cell)
2274             cpuflags="-mcpu=cell"
2275             enable ldbrx
2276         ;;
2277         e500v2)
2278             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2279             disable altivec
2280         ;;
2281         e500)
2282             cpuflags="-mcpu=8540 -mhard-float"
2283             disable altivec
2284         ;;
2285     esac
2286
2287 elif enabled x86; then
2288
2289     case $cpu in
2290         i[345]86|pentium)
2291             cpuflags="-march=$cpu"
2292             disable mmx
2293         ;;
2294         # targets that do NOT support conditional mov (cmov)
2295         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2296             cpuflags="-march=$cpu"
2297             disable cmov
2298         ;;
2299         # targets that do support conditional mov (cmov)
2300         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2301             cpuflags="-march=$cpu"
2302             enable cmov
2303             enable fast_cmov
2304         ;;
2305         # targets that do support conditional mov but on which it's slow
2306         pentium4|pentium4m|prescott|nocona)
2307             cpuflags="-march=$cpu"
2308             enable cmov
2309             disable fast_cmov
2310         ;;
2311     esac
2312
2313 elif enabled sparc; then
2314
2315     case $cpu in
2316         niagara)
2317             cpuflags="-mcpu=$cpu"
2318             disable vis
2319         ;;
2320         sparc64)
2321             cpuflags="-mcpu=v9"
2322         ;;
2323     esac
2324
2325 elif enabled arm; then
2326
2327     case $cpu in
2328         armv*)
2329             cpuflags="-march=$cpu"
2330             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2331         ;;
2332         *)
2333             cpuflags="-mcpu=$cpu"
2334             case $cpu in
2335                 cortex-a*)                               subarch=armv7a  ;;
2336                 cortex-r*)                               subarch=armv7r  ;;
2337                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2338                 arm11*)                                  subarch=armv6   ;;
2339                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2340                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2341             esac
2342         ;;
2343     esac
2344
2345 elif enabled alpha; then
2346
2347     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2348
2349 elif enabled bfin; then
2350
2351     cpuflags="-mcpu=$cpu"
2352
2353 elif enabled mips; then
2354
2355     cpuflags="-march=$cpu"
2356
2357 elif enabled avr32; then
2358
2359     case $cpu in
2360         ap7[02]0[0-2])
2361             subarch="avr32_ap"
2362             cpuflags="-mpart=$cpu"
2363         ;;
2364         ap)
2365             subarch="avr32_ap"
2366             cpuflags="-march=$cpu"
2367         ;;
2368         uc3[ab]*)
2369             subarch="avr32_uc"
2370             cpuflags="-mcpu=$cpu"
2371         ;;
2372         uc)
2373             subarch="avr32_uc"
2374             cpuflags="-march=$cpu"
2375         ;;
2376     esac
2377
2378 fi
2379
2380 add_cflags $cpuflags
2381 add_asflags $cpuflags
2382
2383 # compiler sanity check
2384 check_exec <<EOF
2385 int main(void){ return 0; }
2386 EOF
2387 if test "$?" != 0; then
2388     echo "$cc is unable to create an executable file."
2389     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2390         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2391         echo "Only do this if you know what cross compiling means."
2392     fi
2393     die "C compiler test failed."
2394 fi
2395
2396 add_cppflags -D_ISOC99_SOURCE
2397 add_cxxflags -D__STDC_CONSTANT_MACROS
2398 check_cflags -std=c99
2399 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2400 #include <stdlib.h>
2401 EOF
2402 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2403 #include <stdlib.h>
2404 EOF
2405
2406 check_host_cflags -std=c99
2407 check_host_cflags -Wall
2408
2409 case "$arch" in
2410     alpha|ia64|mips|parisc|sparc)
2411         spic=$shared
2412     ;;
2413     x86)
2414         subarch="x86_32"
2415         check_cc <<EOF && subarch="x86_64"
2416         int test[(int)sizeof(char*) - 7];
2417 EOF
2418         if test "$subarch" = "x86_64"; then
2419             spic=$shared
2420         fi
2421     ;;
2422 esac
2423
2424 enable $subarch
2425 enabled spic && enable pic
2426
2427 # OS specific
2428 case $target_os in
2429     haiku)
2430         prefix_default="/boot/common"
2431         network_extralibs="-lnetwork"
2432         host_libs=
2433         ;;
2434     sunos)
2435         AVSERVERLDFLAGS=""
2436         SHFLAGS='-shared -Wl,-h,$$(@F)'
2437         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2438         network_extralibs="-lsocket -lnsl"
2439         add_cppflags -D__EXTENSIONS__
2440         nm_opts='-P -g'
2441         ;;
2442     netbsd)
2443         disable symver
2444         oss_indev_extralibs="-lossaudio"
2445         oss_outdev_extralibs="-lossaudio"
2446         ;;
2447     openbsd)
2448         enable malloc_aligned
2449         # On OpenBSD 4.5. the compiler does not use PIC unless
2450         # explicitly using -fPIC. Libav builds fine without PIC,
2451         # however the generated executable will not do anything
2452         # (simply quits with exit-code 1, no crash, no output).
2453         # Thus explicitly enable PIC here.
2454         enable pic
2455         disable symver
2456         SHFLAGS='-shared'
2457         oss_indev_extralibs="-lossaudio"
2458         oss_outdev_extralibs="-lossaudio"
2459         ;;
2460     dragonfly)
2461         enable malloc_aligned
2462         disable symver
2463         ;;
2464     freebsd)
2465         enable malloc_aligned
2466         ;;
2467     bsd/os)
2468         add_extralibs -lpoll -lgnugetopt
2469         ;;
2470     darwin)
2471         enable malloc_aligned
2472         gas="gas-preprocessor.pl $cc"
2473         enabled ppc && add_asflags -force_cpusubtype_ALL
2474         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2475         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2476         add_ldflags -Wl,-dynamic,-search_paths_first
2477         SLIBSUF=".dylib"
2478         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2479         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2480         AVSERVERLDFLAGS=-Wl,-bind_at_load
2481         objformat="macho"
2482         enabled x86_64 && objformat="macho64"
2483         enabled_any pic shared ||
2484             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2485         ;;
2486     mingw32*)
2487         if test $target_os = "mingw32ce"; then
2488             disable network
2489         else
2490             target_os=mingw32
2491         fi
2492         LIBTARGET=i386
2493         if enabled x86_64; then
2494             enable malloc_aligned
2495             LIBTARGET="i386:x86-64"
2496         elif enabled arm; then
2497             LIBTARGET=arm-wince
2498         fi
2499         shlibdir_default="$bindir_default"
2500         SLIBPREF=""
2501         SLIBSUF=".dll"
2502         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2503         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2504         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2505         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2506         SLIB_INSTALL_LINKS=
2507         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2508         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2509         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'
2510         objformat="win32"
2511         dlltool="${cross_prefix}dlltool"
2512         enable dos_paths
2513         check_cflags -fno-common
2514         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2515                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2516                 die "ERROR: MinGW runtime version must be >= 3.15."
2517         add_cppflags -U__STRICT_ANSI__
2518         ;;
2519     cygwin*)
2520         target_os=cygwin
2521         shlibdir_default="$bindir_default"
2522         SLIBPREF="cyg"
2523         SLIBSUF=".dll"
2524         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2525         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2526         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2527         objformat="win32"
2528         enable dos_paths
2529         check_cflags -fno-common
2530         add_cppflags -U__STRICT_ANSI__
2531         ;;
2532     *-dos|freedos|opendos)
2533         network_extralibs="-lsocket"
2534         objformat="coff"
2535         enable dos_paths
2536         add_cppflags -U__STRICT_ANSI__
2537         ;;
2538     linux)
2539         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2540         enable dv1394
2541         ;;
2542     irix*)
2543         target_os=irix
2544         ranlib="echo ignoring ranlib"
2545         ;;
2546     os/2*)
2547         ln_s="cp -f"
2548         objformat="aout"
2549         add_cppflags -D_GNU_SOURCE
2550         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2551         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2552         AVSERVERLDFLAGS=""
2553         LIBSUF="_s.a"
2554         SLIBPREF=""
2555         SLIBSUF=".dll"
2556         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2557         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2558         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2559           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2560           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2561           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2562           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2563           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2564         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2565           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2566         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2567         enable dos_paths
2568         ;;
2569     gnu/kfreebsd)
2570         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2571         ;;
2572     gnu)
2573         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2574         ;;
2575     qnx)
2576         add_cppflags -D_QNX_SOURCE
2577         network_extralibs="-lsocket"
2578         ;;
2579     symbian)
2580         SLIBSUF=".dll"
2581         enable dos_paths
2582         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2583         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2584         add_ldflags -Wl,--target1-abs,--no-undefined \
2585                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2586                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2587         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2588                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2589                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2590         ;;
2591     none)
2592         ;;
2593     *)
2594         die "Unknown OS '$target_os'."
2595         ;;
2596 esac
2597
2598 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2599
2600 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2601
2602 set_default $PATHS_LIST
2603
2604 # we need to build at least one lib type
2605 if ! enabled_any static shared; then
2606     cat <<EOF
2607 At least one library type must be built.
2608 Specify --enable-static to build the static libraries or --enable-shared to
2609 build the shared libraries as well. To only build the shared libraries specify
2610 --disable-static in addition to --enable-shared.
2611 EOF
2612     exit 1;
2613 fi
2614
2615 die_license_disabled() {
2616     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2617 }
2618
2619 die_license_disabled gpl libx264
2620 die_license_disabled gpl libxavs
2621 die_license_disabled gpl libxvid
2622 die_license_disabled gpl x11grab
2623
2624 die_license_disabled nonfree libfaac
2625
2626 die_license_disabled version3 libopencore_amrnb
2627 die_license_disabled version3 libopencore_amrwb
2628 die_license_disabled version3 libvo_aacenc
2629 die_license_disabled version3 libvo_amrwbenc
2630
2631 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2632
2633 disabled optimizations || check_cflags -fomit-frame-pointer
2634
2635 enable_pic() {
2636     enable pic
2637     add_cppflags -DPIC
2638     add_cflags   -fPIC
2639     add_asflags  -fPIC
2640 }
2641
2642 enabled pic && enable_pic
2643
2644 check_cc <<EOF || die "Symbol mangling check failed."
2645 int ff_extern;
2646 EOF
2647 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2648 extern_prefix=${sym%%ff_extern*}
2649
2650 check_cc <<EOF && enable inline_asm
2651 void foo(void) { __asm__ volatile ("" ::); }
2652 EOF
2653
2654 _restrict=
2655 for restrict_keyword in restrict __restrict__ __restrict; do
2656     check_cc <<EOF && _restrict=$restrict_keyword && break
2657 void foo(char * $restrict_keyword p);
2658 EOF
2659 done
2660
2661 check_cc <<EOF && enable attribute_packed
2662 struct { int x; } __attribute__((packed)) x;
2663 EOF
2664
2665 check_cc <<EOF && enable attribute_may_alias
2666 union { int x; } __attribute__((may_alias)) x;
2667 EOF
2668
2669 check_cc <<EOF || die "endian test failed"
2670 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2671 EOF
2672 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2673
2674 if enabled alpha; then
2675
2676     check_cflags -mieee
2677
2678 elif enabled arm; then
2679
2680     enabled thumb && check_cflags -mthumb || check_cflags -marm
2681     nogas=die
2682
2683     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2684         enable vfp_args
2685     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2686         case "${cross_prefix:-$cc}" in
2687             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2688             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2689 __asm__ (".eabi_attribute 28, 1");
2690 int main(void) { return 0; }
2691 EOF
2692         esac
2693         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2694     fi
2695
2696     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2697     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2698     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2699     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2700     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2701     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2702     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2703
2704     enabled_all armv6t2 shared !pic && enable_pic
2705
2706 elif enabled mips; then
2707
2708     check_asm loongson '"dmult.g $1, $2, $3"'
2709     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2710
2711 elif enabled ppc; then
2712
2713     enable local_aligned_8 local_aligned_16
2714
2715     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2716     check_asm ibm_asm   '"add 0, 0, 0"'
2717     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2718     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2719
2720     # AltiVec flags: The FSF version of GCC differs from the Apple version
2721     if enabled altivec; then
2722         nogas=warn
2723         check_cflags -maltivec -mabi=altivec &&
2724         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2725         check_cflags -faltivec
2726
2727         # check if our compiler supports Motorola AltiVec C API
2728         check_cc <<EOF || disable altivec
2729 $inc_altivec_h
2730 int main(void) {
2731     vector signed int v1, v2, v3;
2732     v1 = vec_add(v2,v3);
2733     return 0;
2734 }
2735 EOF
2736
2737         # check if our compiler supports braces for vector declarations
2738         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2739 $inc_altivec_h
2740 int main (void) { (vector int) {1}; return 0; }
2741 EOF
2742     fi
2743
2744 elif enabled sparc; then
2745
2746     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2747         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2748
2749 elif enabled x86; then
2750
2751     enable local_aligned_8 local_aligned_16
2752
2753     # check whether EBP is available on x86
2754     # As 'i' is stored on the stack, this program will crash
2755     # if the base pointer is used to access it because the
2756     # base pointer is cleared in the inline assembly code.
2757     check_exec_crash <<EOF && enable ebp_available
2758     volatile int i=0;
2759     __asm__ volatile (
2760         "xorl %%ebp, %%ebp"
2761     ::: "%ebp");
2762     return i;
2763 EOF
2764
2765     # check whether EBX is available on x86
2766     check_asm ebx_available '""::"b"(0)' &&
2767         check_asm ebx_available '"":::"%ebx"'
2768
2769     # check whether xmm clobbers are supported
2770     check_asm xmm_clobbers '"":::"%xmm0"'
2771
2772     # check whether binutils is new enough to compile SSSE3/MMX2
2773     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2774     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2775
2776     check_asm bswap '"bswap %%eax" ::: "%eax"'
2777
2778     if ! disabled_any asm mmx yasm; then
2779         if check_cmd $yasmexe --version; then
2780             enabled x86_64 && yasm_extra="-m amd64"
2781             yasm_debug="-g dwarf2"
2782         elif check_cmd nasm -v; then
2783             yasmexe=nasm
2784             yasm_debug="-g -F dwarf"
2785             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2786         fi
2787
2788         YASMFLAGS="-f $objformat $yasm_extra"
2789         enabled pic               && append YASMFLAGS "-DPIC"
2790         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2791         case "$objformat" in
2792             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2793         esac
2794
2795         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2796             die "yasm not found, use --disable-yasm for a crippled build"
2797         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2798     fi
2799
2800     case "$cpu" in
2801         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2802             disable fast_clz
2803         ;;
2804     esac
2805
2806 fi
2807
2808 if enabled asm; then
2809     as=${gas:=$as}
2810     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2811         $nogas "GNU assembler not found, install gas-preprocessor"
2812 fi
2813
2814 check_ldflags -Wl,--as-needed
2815
2816 if check_func dlopen; then
2817     ldl=
2818 elif check_func dlopen -ldl; then
2819     ldl=-ldl
2820 fi
2821
2822 if enabled network; then
2823     check_type "sys/types.h sys/socket.h" socklen_t
2824     check_type netdb.h "struct addrinfo"
2825     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2826     check_type netinet/in.h "struct sockaddr_in6"
2827     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2828     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2829     # Prefer arpa/inet.h over winsock2
2830     if check_header arpa/inet.h ; then
2831         check_func closesocket
2832     elif check_header winsock2.h ; then
2833         check_func_headers winsock2.h closesocket -lws2 && \
2834             network_extralibs="-lws2" || \
2835         { check_func_headers winsock2.h closesocket -lws2_32 && \
2836             network_extralibs="-lws2_32"; }
2837         check_type ws2tcpip.h socklen_t
2838         check_type ws2tcpip.h "struct addrinfo"
2839         check_type ws2tcpip.h "struct ipv6_mreq"
2840         check_type ws2tcpip.h "struct sockaddr_in6"
2841         check_type ws2tcpip.h "struct sockaddr_storage"
2842         check_struct winsock2.h "struct sockaddr" sa_len
2843     else
2844         disable network
2845     fi
2846 fi
2847
2848 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2849 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2850
2851 check_func  fcntl
2852 check_func  fork
2853 check_func  getaddrinfo $network_extralibs
2854 check_func  gethrtime
2855 check_func  getrusage
2856 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2857 check_func  inet_aton $network_extralibs
2858 check_func  isatty
2859 check_func  localtime_r
2860 check_func  ${malloc_prefix}memalign            && enable memalign
2861 check_func  mkstemp
2862 check_func  mmap
2863 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2864 check_func  setrlimit
2865 check_func  strerror_r
2866 check_func  strptime
2867 check_func  strtok_r
2868 check_func_headers io.h setmode
2869 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2870 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2871 check_func_headers windows.h GetProcessTimes
2872 check_func_headers windows.h MapViewOfFile
2873 check_func_headers windows.h VirtualAlloc
2874
2875 check_header dlfcn.h
2876 check_header dxva2api.h
2877 check_header malloc.h
2878 check_header poll.h
2879 check_header sys/mman.h
2880 check_header sys/resource.h
2881 check_header sys/select.h
2882 check_header vdpau/vdpau.h
2883 check_header vdpau/vdpau_x11.h
2884 check_header X11/extensions/XvMClib.h
2885
2886 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2887
2888 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2889 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2890
2891 # check for some common methods of building with pthread support
2892 # do this before the optional library checks as some of them require pthreads
2893 if ! disabled pthreads && ! enabled w32threads; then
2894     enable pthreads
2895     if check_func pthread_create; then
2896         :
2897     elif check_func pthread_create -pthread; then
2898         add_cflags -pthread
2899         add_extralibs -pthread
2900     elif check_func pthread_create -pthreads; then
2901         add_cflags -pthreads
2902         add_extralibs -pthreads
2903     elif check_func pthread_create -lpthreadGC2; then
2904         add_extralibs -lpthreadGC2
2905     elif ! check_lib pthread.h pthread_create -lpthread; then
2906         disable pthreads
2907     fi
2908 fi
2909
2910 for thread in $THREADS_LIST; do
2911     if enabled $thread; then
2912         test -n "$thread_type" &&
2913             die "ERROR: Only one thread type must be selected." ||
2914             thread_type="$thread"
2915     fi
2916 done
2917
2918 check_lib math.h sin -lm && LIBM="-lm"
2919 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2920
2921 check_mathfunc exp2
2922 check_mathfunc exp2f
2923 check_mathfunc llrint
2924 check_mathfunc llrintf
2925 check_mathfunc log2
2926 check_mathfunc log2f
2927 check_mathfunc lrint
2928 check_mathfunc lrintf
2929 check_mathfunc round
2930 check_mathfunc roundf
2931 check_mathfunc trunc
2932 check_mathfunc truncf
2933
2934 # these are off by default, so fail if requested and not available
2935 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2936 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2937 enabled libdirac   && require_pkg_config dirac                          \
2938     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2939     "dirac_decoder_init dirac_encoder_init"
2940 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2941 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2942 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2943 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2944 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2945 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2946 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2947 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2948 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2949 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2950 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2951 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2952 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
2953     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
2954     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
2955 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2956 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2957 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2958 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2959 enabled libvpx     && {
2960     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2961                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2962     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2963                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2964 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2965                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2966                         die "ERROR: libx264 version must be >= 0.115."; }
2967 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2968 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2969 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2970
2971 # libdc1394 check
2972 if enabled libdc1394; then
2973     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2974         enable libdc1394_2; } ||
2975     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2976         enable libdc1394_1; } ||
2977     die "ERROR: No version of libdc1394 found "
2978 fi
2979
2980 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2981     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2982     enable sdl &&
2983     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2984 fi
2985
2986 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2987
2988 check_header linux/fb.h
2989 check_header linux/videodev.h
2990 check_header linux/videodev2.h
2991 check_header sys/videoio.h
2992
2993 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2994 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2995 # w32api 3.12 had it defined wrong
2996 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2997
2998 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2999 { check_header dev/bktr/ioctl_meteor.h &&
3000   check_header dev/bktr/ioctl_bt848.h; } ||
3001 { check_header machine/ioctl_meteor.h &&
3002   check_header machine/ioctl_bt848.h; } ||
3003 { check_header dev/video/meteor/ioctl_meteor.h &&
3004   check_header dev/video/bktr/ioctl_bt848.h; } ||
3005 check_header dev/ic/bt8xx.h
3006
3007 check_header sndio.h
3008 check_header sys/soundcard.h
3009 check_header soundcard.h
3010
3011 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3012
3013 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3014
3015 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3016
3017 enabled x11grab                         &&
3018 check_header X11/Xlib.h                 &&
3019 check_header X11/extensions/XShm.h      &&
3020 check_header X11/extensions/Xfixes.h    &&
3021 check_func XOpenDisplay -lX11           &&
3022 check_func XShmCreateImage -lX11 -lXext &&
3023 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3024
3025 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3026 check_cpp_condition \
3027     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3028     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3029       disable vdpau; }
3030 fi
3031
3032 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3033
3034 # add some useful compiler flags if supported
3035 check_cflags -Wdeclaration-after-statement
3036 check_cflags -Wall
3037 check_cflags -Wno-parentheses
3038 check_cflags -Wno-switch
3039 check_cflags -Wno-format-zero-length
3040 check_cflags -Wdisabled-optimization
3041 check_cflags -Wpointer-arith
3042 check_cflags -Wredundant-decls
3043 check_cflags -Wno-pointer-sign
3044 check_cflags -Wcast-qual
3045 check_cflags -Wwrite-strings
3046 check_cflags -Wtype-limits
3047 check_cflags -Wundef
3048 check_cflags -Wmissing-prototypes
3049 enabled extra_warnings && check_cflags -Winline
3050
3051 # add some linker flags
3052 check_ldflags -Wl,--warn-common
3053 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3054 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3055
3056 echo "X{};" > $TMPV
3057 if test_ldflags -Wl,--version-script,$TMPV; then
3058     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3059     check_cc <<EOF && enable symver_asm_label
3060 void ff_foo(void) __asm__ ("av_foo@VERSION");
3061 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3062 EOF
3063     check_cc <<EOF && enable symver_gnu_asm
3064 __asm__(".symver ff_foo,av_foo@VERSION");
3065 void ff_foo(void) {}
3066 EOF
3067 fi
3068
3069 if [ -n "$optflags" ]; then
3070     add_cflags $optflags
3071 elif enabled small; then
3072     add_cflags $size_cflags
3073 elif enabled optimizations; then
3074     add_cflags $speed_cflags
3075 else
3076     add_cflags $noopt_cflags
3077 fi
3078 check_cflags -fno-math-errno
3079 check_cflags -fno-signed-zeros
3080
3081 if enabled icc; then
3082     # Just warnings, no remarks
3083     check_cflags -w1
3084     # -wd: Disable following warnings
3085     # 144, 167, 556: -Wno-pointer-sign
3086     # 1292: attribute "foo" ignored
3087     # 10006: ignoring unknown option -fno-signed-zeros
3088     # 10148: ignoring unknown option -Wno-parentheses
3089     # 10156: ignoring option '-W'; no argument required
3090     check_cflags -wd144,167,556,1292,10006,10148,10156
3091     # 11030: Warning unknown option --as-needed
3092     # 10156: ignoring option '-export'; no argument required
3093     check_ldflags -wd10156,11030
3094     # Allow to compile with optimizations
3095     check_ldflags -march=$cpu
3096     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3097     enable ebp_available
3098     if enabled x86_32; then
3099         test ${icc_version%%.*} -ge 11 && \
3100             check_cflags -falign-stack=maintain-16-byte || \
3101             disable aligned_stack
3102     fi
3103 elif enabled ccc; then
3104     # disable some annoying warnings
3105     add_cflags -msg_disable cvtu32to64
3106     add_cflags -msg_disable embedcomment
3107     add_cflags -msg_disable needconstext
3108     add_cflags -msg_disable nomainieee
3109     add_cflags -msg_disable ptrmismatch1
3110     add_cflags -msg_disable unreachcode
3111 elif enabled gcc; then
3112     check_cflags -fno-tree-vectorize
3113     check_cflags -Werror=implicit-function-declaration
3114     check_cflags -Werror=missing-prototypes
3115 elif enabled llvm_gcc; then
3116     check_cflags -mllvm -stack-alignment=16
3117 elif enabled clang; then
3118     check_cflags -mllvm -stack-alignment=16
3119     check_cflags -Qunused-arguments
3120 elif enabled armcc; then
3121     # 2523: use of inline assembler is deprecated
3122     add_cflags -W${armcc_opt},--diag_suppress=2523
3123     add_cflags -W${armcc_opt},--diag_suppress=1207
3124     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3125     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3126     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3127     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3128 elif enabled tms470; then
3129     add_cflags -pds=824 -pds=837
3130 elif enabled pathscale; then
3131     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3132 fi
3133
3134 enabled_any $THREADS_LIST      && enable threads
3135
3136 check_deps $CONFIG_LIST       \
3137            $CONFIG_EXTRA      \
3138            $HAVE_LIST         \
3139            $DECODER_LIST      \
3140            $ENCODER_LIST      \
3141            $HWACCEL_LIST      \
3142            $PARSER_LIST       \
3143            $BSF_LIST          \
3144            $DEMUXER_LIST      \
3145            $MUXER_LIST        \
3146            $FILTER_LIST       \
3147            $INDEV_LIST        \
3148            $OUTDEV_LIST       \
3149            $PROTOCOL_LIST     \
3150            $ACODEC_TESTS      \
3151            $VCODEC_TESTS      \
3152            $LAVF_TESTS        \
3153            $LAVFI_TESTS       \
3154            $SEEK_TESTS        \
3155
3156 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3157
3158 ! enabled_any memalign posix_memalign malloc_aligned &&
3159     enabled_any $need_memalign && enable memalign_hack
3160
3161 echo "install prefix            $prefix"
3162 echo "source path               $source_path"
3163 echo "C compiler                $cc"
3164 echo "ARCH                      $arch ($cpu)"
3165 if test "$build_suffix" != ""; then
3166     echo "build suffix              $build_suffix"
3167 fi
3168 if test "$extra_version" != ""; then
3169     echo "version string suffix     $extra_version"
3170 fi
3171 echo "big-endian                ${bigendian-no}"
3172 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3173 if enabled x86; then
3174     echo "${yasmexe}                      ${yasm-no}"
3175     echo "MMX enabled               ${mmx-no}"
3176     echo "MMX2 enabled              ${mmx2-no}"
3177     echo "3DNow! enabled            ${amd3dnow-no}"
3178     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3179     echo "SSE enabled               ${sse-no}"
3180     echo "SSSE3 enabled             ${ssse3-no}"
3181     echo "AVX enabled               ${avx-no}"
3182     echo "CMOV enabled              ${cmov-no}"
3183     echo "CMOV is fast              ${fast_cmov-no}"
3184     echo "EBX available             ${ebx_available-no}"
3185     echo "EBP available             ${ebp_available-no}"
3186 fi
3187 if enabled arm; then
3188     echo "ARMv5TE enabled           ${armv5te-no}"
3189     echo "ARMv6 enabled             ${armv6-no}"
3190     echo "ARMv6T2 enabled           ${armv6t2-no}"
3191     echo "ARM VFP enabled           ${armvfp-no}"
3192     echo "IWMMXT enabled            ${iwmmxt-no}"
3193     echo "NEON enabled              ${neon-no}"
3194 fi
3195 if enabled mips; then
3196     echo "MMI enabled               ${mmi-no}"
3197 fi
3198 if enabled ppc; then
3199     echo "AltiVec enabled           ${altivec-no}"
3200     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3201     echo "dcbzl available           ${dcbzl-no}"
3202 fi
3203 if enabled sparc; then
3204     echo "VIS enabled               ${vis-no}"
3205 fi
3206 echo "debug symbols             ${debug-no}"
3207 echo "optimize for size         ${small-no}"
3208 echo "optimizations             ${optimizations-no}"
3209 echo "static                    ${static-no}"
3210 echo "shared                    ${shared-no}"
3211 echo "postprocessing support    ${postproc-no}"
3212 echo "new filter support        ${avfilter-no}"
3213 echo "network support           ${network-no}"
3214 echo "threading support         ${thread_type-no}"
3215 echo "SDL support               ${sdl-no}"
3216 echo "Sun medialib support      ${mlib-no}"
3217 echo "libdxva2 enabled          ${dxva2-no}"
3218 echo "libva enabled             ${vaapi-no}"
3219 echo "libvdpau enabled          ${vdpau-no}"
3220 echo "AVISynth enabled          ${avisynth-no}"
3221 echo "frei0r enabled            ${frei0r-no}"
3222 echo "libdc1394 support         ${libdc1394-no}"
3223 echo "libdirac enabled          ${libdirac-no}"
3224 echo "libfaac enabled           ${libfaac-no}"
3225 echo "libgsm enabled            ${libgsm-no}"
3226 echo "libmp3lame enabled        ${libmp3lame-no}"
3227 echo "libnut enabled            ${libnut-no}"
3228 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3229 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3230 echo "libopencv support         ${libopencv-no}"
3231 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3232 echo "librtmp enabled           ${librtmp-no}"
3233 echo "libschroedinger enabled   ${libschroedinger-no}"
3234 echo "libspeex enabled          ${libspeex-no}"
3235 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3236 echo "libtheora enabled         ${libtheora-no}"
3237 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3238 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3239 echo "libvorbis enabled         ${libvorbis-no}"
3240 echo "libvpx enabled            ${libvpx-no}"
3241 echo "libx264 enabled           ${libx264-no}"
3242 echo "libxavs enabled           ${libxavs-no}"
3243 echo "libxvid enabled           ${libxvid-no}"
3244 echo "zlib enabled              ${zlib-no}"
3245 echo "bzlib enabled             ${bzlib-no}"
3246 echo
3247
3248 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3249     echo "Enabled ${type}s:"
3250     eval list=\$$(toupper $type)_LIST
3251     print_enabled '_*' $list | sort | pr -r -3 -t
3252     echo
3253 done
3254
3255 license="LGPL version 2.1 or later"
3256 if enabled nonfree; then
3257     license="nonfree and unredistributable"
3258 elif enabled gplv3; then
3259     license="GPL version 3 or later"
3260 elif enabled lgplv3; then
3261     license="LGPL version 3 or later"
3262 elif enabled gpl; then
3263     license="GPL version 2 or later"
3264 fi
3265
3266 echo "License: $license"
3267
3268 echo "Creating config.mak and config.h..."
3269
3270 test -e Makefile || $ln_s "$source_path/Makefile" .
3271
3272 config_files="$TMPH config.mak"
3273
3274 cat > config.mak <<EOF
3275 # Automatically generated by configure - do not modify!
3276 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3277 prefix=$prefix
3278 LIBDIR=\$(DESTDIR)$libdir
3279 SHLIBDIR=\$(DESTDIR)$shlibdir
3280 INCDIR=\$(DESTDIR)$incdir
3281 BINDIR=\$(DESTDIR)$bindir
3282 DATADIR=\$(DESTDIR)$datadir
3283 MANDIR=\$(DESTDIR)$mandir
3284 SRC_PATH=$source_path
3285 CC_IDENT=$cc_ident
3286 ARCH=$arch
3287 CC=$cc
3288 CXX=$cxx
3289 AS=$as
3290 LD=$ld
3291 DEPCC=$dep_cc
3292 YASM=$yasmexe
3293 YASMDEP=$yasmexe
3294 AR=$ar
3295 RANLIB=$ranlib
3296 LN_S=$ln_s
3297 CPPFLAGS=$CPPFLAGS
3298 CFLAGS=$CFLAGS
3299 CXXFLAGS=$CXXFLAGS
3300 ASFLAGS=$ASFLAGS
3301 AS_O=$CC_O
3302 CC_O=$CC_O
3303 CXX_O=$CXX_O
3304 DLLTOOL=$dlltool
3305 LDFLAGS=$LDFLAGS
3306 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3307 SHFLAGS=$SHFLAGS
3308 YASMFLAGS=$YASMFLAGS
3309 BUILDSUF=$build_suffix
3310 FULLNAME=$FULLNAME
3311 LIBPREF=$LIBPREF
3312 LIBSUF=$LIBSUF
3313 LIBNAME=$LIBNAME
3314 SLIBPREF=$SLIBPREF
3315 SLIBSUF=$SLIBSUF
3316 EXESUF=$EXESUF
3317 EXTRA_VERSION=$extra_version
3318 DEPFLAGS=$DEPFLAGS
3319 CCDEP=$CCDEP
3320 CXXDEP=$CXXDEP
3321 ASDEP=$ASDEP
3322 CC_DEPFLAGS=$CC_DEPFLAGS
3323 AS_DEPFLAGS=$AS_DEPFLAGS
3324 HOSTCC=$host_cc
3325 HOSTCFLAGS=$host_cflags
3326 HOSTEXESUF=$HOSTEXESUF
3327 HOSTLDFLAGS=$host_ldflags
3328 HOSTLIBS=$host_libs
3329 TARGET_EXEC=$target_exec
3330 TARGET_PATH=$target_path
3331 SDL_LIBS=$sdl_libs
3332 SDL_CFLAGS=$sdl_cflags
3333 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3334 EXTRALIBS=$extralibs
3335 INSTALL=install
3336 LIBTARGET=${LIBTARGET}
3337 SLIBNAME=${SLIBNAME}
3338 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3339 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3340 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3341 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3342 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3343 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3344 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3345 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3346 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3347 EOF
3348
3349 get_version(){
3350     name=$1
3351     file=$source_path/$2
3352     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3353     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3354     lcname=$(tolower $name)
3355     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3356     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3357 }
3358
3359 get_version LIBSWSCALE  libswscale/swscale.h
3360 get_version LIBPOSTPROC libpostproc/postprocess.h
3361 get_version LIBAVCODEC  libavcodec/version.h
3362 get_version LIBAVDEVICE libavdevice/avdevice.h
3363 get_version LIBAVFORMAT libavformat/version.h
3364 get_version LIBAVUTIL   libavutil/avutil.h
3365 get_version LIBAVFILTER libavfilter/avfilter.h
3366
3367 cat > $TMPH <<EOF
3368 /* Automatically generated by configure - do not modify! */
3369 #ifndef LIBAV_CONFIG_H
3370 #define LIBAV_CONFIG_H
3371 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3372 #define LIBAV_LICENSE "$(c_escape $license)"
3373 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3374 #define CC_TYPE "$cc_type"
3375 #define CC_VERSION $cc_version
3376 #define restrict $_restrict
3377 #define EXTERN_PREFIX "${extern_prefix}"
3378 #define EXTERN_ASM ${extern_prefix}
3379 #define SLIBSUF "$SLIBSUF"
3380 EOF
3381
3382 test -n "$malloc_prefix" &&
3383     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3384
3385 if enabled small || disabled optimizations; then
3386     echo "#undef  av_always_inline"  >> $TMPH
3387     if enabled small; then
3388         echo "#define av_always_inline inline"  >> $TMPH
3389     else
3390         echo "#define av_always_inline av_unused"  >> $TMPH
3391     fi
3392 fi
3393
3394 if enabled yasm; then
3395     append config_files $TMPASM
3396     printf '' >$TMPASM
3397 fi
3398
3399 print_config ARCH_   "$config_files" $ARCH_LIST
3400 print_config HAVE_   "$config_files" $HAVE_LIST
3401 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3402                                      $CONFIG_EXTRA      \
3403                                      $DECODER_LIST      \
3404                                      $ENCODER_LIST      \
3405                                      $HWACCEL_LIST      \
3406                                      $PARSER_LIST       \
3407                                      $BSF_LIST          \
3408                                      $DEMUXER_LIST      \
3409                                      $MUXER_LIST        \
3410                                      $FILTER_LIST       \
3411                                      $PROTOCOL_LIST     \
3412                                      $INDEV_LIST        \
3413                                      $OUTDEV_LIST       \
3414
3415 cat >>config.mak <<EOF
3416 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3417 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3418 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3419 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3420 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3421 EOF
3422
3423 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3424
3425 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3426 cp_if_changed $TMPH config.h
3427 touch .config
3428
3429 enabled yasm && cp_if_changed $TMPASM config.asm
3430
3431 cat > $TMPH <<EOF
3432 /* Generated by ffconf */
3433 #ifndef AVUTIL_AVCONFIG_H
3434 #define AVUTIL_AVCONFIG_H
3435 EOF
3436
3437 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3438
3439 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3440
3441 cp_if_changed $TMPH libavutil/avconfig.h
3442
3443 test -n "$WARNINGS" && printf "\n$WARNINGS"
3444
3445 # build pkg-config files
3446
3447 pkgconfig_generate(){
3448 name=$1
3449 shortname=${name#lib}${build_suffix}
3450 comment=$2
3451 version=$3
3452 libs=$4
3453 requires=$5
3454 enabled ${name#lib} || return 0
3455 mkdir -p $name
3456 cat <<EOF > $name/$name.pc
3457 prefix=$prefix
3458 exec_prefix=\${prefix}
3459 libdir=$libdir
3460 includedir=$incdir
3461
3462 Name: $name
3463 Description: $comment
3464 Version: $version
3465 Requires: $(enabled shared || echo $requires)
3466 Requires.private: $(enabled shared && echo $requires)
3467 Conflicts:
3468 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3469 Libs.private: $(enabled shared && echo $libs)
3470 Cflags: -I\${includedir}
3471 EOF
3472 cat <<EOF > $name/$name-uninstalled.pc
3473 prefix=
3474 exec_prefix=
3475 libdir=\${pcfiledir}
3476 includedir=${source_path}
3477
3478 Name: $name
3479 Description: $comment
3480 Version: $version
3481 Requires: $requires
3482 Conflicts:
3483 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3484 Cflags: -I\${includedir}
3485 EOF
3486 }
3487
3488 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3489 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3490 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3491 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3492 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3493 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3494 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"