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-libcdio         enable audio CD grabbing with libcdio
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfreetype     enable libfreetype [no]
 174   --enable-libgsm          enable GSM support via libgsm [no]
 175   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 176   --enable-libnut          enable NUT (de)muxing via libnut,
 177                            native (de)muxer exists [no]
 178   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 179   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 181   --enable-libspeex        enable Speex decoding via libspeex [no]
 182   --enable-libtheora       enable Theora encoding via libtheora [no]
 183   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 184   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 185   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 186                            native implementation exists [no]
 187   --enable-libvpx          enable VP8 support via libvpx [no]
 188   --enable-libx264         enable H.264 encoding via x264 [no]
 189   --enable-libxavs         enable AVS encoding via xavs [no]
 190   --enable-libxvid         enable Xvid encoding via xvidcore,
 191                            native MPEG-4/Xvid encoder exists [no]
 192   --enable-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   --ld=LD                  use linker LD
 208   --host-cc=HOSTCC         use host C compiler HOSTCC
 209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 211   --host-libs=HLIBS        use libs HLIBS when linking for host
 212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 215   --extra-version=STRING   version string suffix []
 216   --build-suffix=SUFFIX    library name suffix []
 217   --arch=ARCH              select architecture [$arch]
 218   --cpu=CPU                select the minimum required CPU (affects
 219                            instruction selection, may crash on older CPUs)
 220   --disable-asm            disable all assembler optimizations
 221   --disable-altivec        disable AltiVec optimizations
 222   --disable-amd3dnow       disable 3DNow! optimizations
 223   --disable-amd3dnowext    disable 3DNow! extended optimizations
 224   --disable-mmx            disable MMX optimizations
 225   --disable-mmx2           disable MMX2 optimizations
 226   --disable-sse            disable SSE optimizations
 227   --disable-ssse3          disable SSSE3 optimizations
 228   --disable-avx            disable AVX optimizations
 229   --disable-armv5te        disable armv5te optimizations
 230   --disable-armv6          disable armv6 optimizations
 231   --disable-armv6t2        disable armv6t2 optimizations
 232   --disable-armvfp         disable ARM VFP optimizations
 233   --disable-iwmmxt         disable iwmmxt optimizations
 234   --disable-mmi            disable MMI optimizations
 235   --disable-neon           disable neon optimizations
 236   --disable-vis            disable VIS optimizations
 237   --disable-yasm           disable use of yasm assembler
 238   --enable-pic             build position-independent code
 239   --malloc-prefix=PFX      prefix malloc and related names with PFX
 240   --enable-sram            allow use of on-chip SRAM
 241   --disable-symver         disable symbol versioning
 242   --optflags               override optimization-related compiler flags
 243
 244 Developer options (useful when working on Libav itself):
 245   --disable-debug          disable debugging symbols
 246   --enable-debug=LEVEL     set the debug level [$debuglevel]
 247   --disable-optimizations  disable compiler optimizations
 248   --enable-extra-warnings  enable more compiler warnings
 249   --samples=PATH           location of test samples for FATE, if not set use
 250                            \$FATE_SAMPLES at make invocation time.
 251
 252 NOTE: Object files are built at the place where configure is launched.
 253 EOF
 254   exit 0
 255 }
 256
 257 quotes='""'
 258
 259 log(){
 260     echo "$@" >> $logfile
 261 }
 262
 263 log_file(){
 264     log BEGIN $1
 265     pr -n -t $1 >> $logfile
 266     log END $1
 267 }
 268
 269 echolog(){
 270     log "$@"
 271     echo "$@"
 272 }
 273
 274 warn(){
 275     log "WARNING: $*"
 276     WARNINGS="${WARNINGS}WARNING: $*\n"
 277 }
 278
 279 die(){
 280     echolog "$@"
 281     cat <<EOF
 282
 283 If you think configure made a mistake, make sure you are using the latest
 284 version from Git.  If the latest version fails, report the problem to the
 285 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 286 EOF
 287     if disabled logging; then
 288         cat <<EOF
 289 Rerun configure with logging enabled (do not use --disable-logging), and
 290 include the log this produces with your report.
 291 EOF
 292     else
 293 cat <<EOF
 294 Include the log file "$logfile" produced by configure as this will help
 295 solving the problem.
 296 EOF
 297     fi
 298     exit 1
 299 }
 300
 301 # Avoid locale weirdness, besides we really just want to translate ASCII.
 302 toupper(){
 303     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 304 }
 305
 306 tolower(){
 307     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 308 }
 309
 310 c_escape(){
 311     echo "$*" | sed 's/["\\]/\\\0/g'
 312 }
 313
 314 sh_quote(){
 315     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 316     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 317     echo "$v"
 318 }
 319
 320 cleanws(){
 321     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 322 }
 323
 324 filter(){
 325     pat=$1
 326     shift
 327     for v; do
 328         eval "case $v in $pat) echo $v ;; esac"
 329     done
 330 }
 331
 332 filter_out(){
 333     pat=$1
 334     shift
 335     for v; do
 336         eval "case $v in $pat) ;; *) echo $v ;; esac"
 337     done
 338 }
 339
 340 map(){
 341     m=$1
 342     shift
 343     for v; do eval $m; done
 344 }
 345
 346 set_all(){
 347     value=$1
 348     shift
 349     for var in $*; do
 350         eval $var=$value
 351     done
 352 }
 353
 354 set_weak(){
 355     value=$1
 356     shift
 357     for var; do
 358         eval : \${$var:=$value}
 359     done
 360 }
 361
 362 set_safe(){
 363     var=$1
 364     shift
 365     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 366 }
 367
 368 get_safe(){
 369     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 370 }
 371
 372 pushvar(){
 373     for var in $*; do
 374         eval level=\${${var}_level:=0}
 375         eval ${var}_${level}="\$$var"
 376         eval ${var}_level=$(($level+1))
 377     done
 378 }
 379
 380 popvar(){
 381     for var in $*; do
 382         eval level=\${${var}_level:-0}
 383         test $level = 0 && continue
 384         eval level=$(($level-1))
 385         eval $var="\${${var}_${level}}"
 386         eval ${var}_level=$level
 387         eval unset ${var}_${level}
 388     done
 389 }
 390
 391 enable(){
 392     set_all yes $*
 393 }
 394
 395 disable(){
 396     set_all no $*
 397 }
 398
 399 enable_weak(){
 400     set_weak yes $*
 401 }
 402
 403 disable_weak(){
 404     set_weak no $*
 405 }
 406
 407 enable_safe(){
 408     for var; do
 409         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 410     done
 411 }
 412
 413 disable_safe(){
 414     for var; do
 415         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 416     done
 417 }
 418
 419 do_enable_deep(){
 420     for var; do
 421         enabled $var && continue
 422         eval sel="\$${var}_select"
 423         eval sgs="\$${var}_suggest"
 424         pushvar var sgs
 425         enable_deep $sel
 426         popvar sgs
 427         enable_deep_weak $sgs
 428         popvar var
 429     done
 430 }
 431
 432 enable_deep(){
 433     do_enable_deep $*
 434     enable $*
 435 }
 436
 437 enable_deep_weak(){
 438     do_enable_deep $*
 439     enable_weak $*
 440 }
 441
 442 enabled(){
 443     test "${1#!}" = "$1" && op== || op=!=
 444     eval test "x\$${1#!}" $op "xyes"
 445 }
 446
 447 disabled(){
 448     test "${1#!}" = "$1" && op== || op=!=
 449     eval test "x\$${1#!}" $op "xno"
 450 }
 451
 452 enabled_all(){
 453     for opt; do
 454         enabled $opt || return 1
 455     done
 456 }
 457
 458 disabled_all(){
 459     for opt; do
 460         disabled $opt || return 1
 461     done
 462 }
 463
 464 enabled_any(){
 465     for opt; do
 466         enabled $opt && return 0
 467     done
 468 }
 469
 470 disabled_any(){
 471     for opt; do
 472         disabled $opt && return 0
 473     done
 474     return 1
 475 }
 476
 477 set_default(){
 478     for opt; do
 479         eval : \${$opt:=\$${opt}_default}
 480     done
 481 }
 482
 483 is_in(){
 484     value=$1
 485     shift
 486     for var in $*; do
 487         [ $var = $value ] && return 0
 488     done
 489     return 1
 490 }
 491
 492 check_deps(){
 493     for cfg; do
 494         cfg="${cfg#!}"
 495         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 496         disabled ${cfg}_checking && continue
 497         enable ${cfg}_checking
 498
 499         eval dep_all="\$${cfg}_deps"
 500         eval dep_any="\$${cfg}_deps_any"
 501         eval dep_sel="\$${cfg}_select"
 502         eval dep_sgs="\$${cfg}_suggest"
 503         eval dep_ifa="\$${cfg}_if"
 504         eval dep_ifn="\$${cfg}_if_any"
 505
 506         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 508         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 509
 510         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 511         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 512         enabled_all  $dep_all || disable $cfg
 513         enabled_any  $dep_any || disable $cfg
 514         disabled_any $dep_sel && disable $cfg
 515
 516         if enabled $cfg; then
 517             eval dep_extralibs="\$${cfg}_extralibs"
 518             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 519             enable_deep $dep_sel
 520             enable_deep_weak $dep_sgs
 521         fi
 522
 523         disable ${cfg}_checking
 524     done
 525 }
 526
 527 print_config_h(){
 528     enabled $1 && v=1 || v=0
 529     echo "#define $2 $v"
 530 }
 531
 532 print_config_mak(){
 533     enabled $1 && v= || v=!
 534     echo "$v$2=yes"
 535 }
 536
 537 print_config_asm(){
 538     enabled $1 && echo "%define $2"
 539 }
 540
 541 print_config(){
 542     pfx=$1
 543     files=$2
 544     shift 2
 545     for cfg; do
 546         ucname="$(toupper $cfg)"
 547         for f in $files; do
 548             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 549         done
 550     done
 551 }
 552
 553 print_enabled(){
 554     test "$1" = -n && end=" " && shift || end="\n"
 555     suf=$1
 556     shift
 557     for v; do
 558         enabled $v && printf "%s$end" ${v%$suf};
 559     done
 560 }
 561
 562 append(){
 563     var=$1
 564     shift
 565     eval "$var=\"\$$var $*\""
 566 }
 567
 568 prepend(){
 569     var=$1
 570     shift
 571     eval "$var=\"$* \$$var\""
 572 }
 573
 574 add_cppflags(){
 575     append CPPFLAGS $($filter_cppflags "$@")
 576 }
 577
 578 add_cflags(){
 579     append CFLAGS $($filter_cflags "$@")
 580 }
 581
 582 add_asflags(){
 583     append ASFLAGS $($filter_asflags "$@")
 584 }
 585
 586 add_ldflags(){
 587     append LDFLAGS "$@"
 588 }
 589
 590 add_extralibs(){
 591     prepend extralibs "$@"
 592 }
 593
 594 check_cmd(){
 595     log "$@"
 596     "$@" >> $logfile 2>&1
 597 }
 598
 599 check_cc(){
 600     log check_cc "$@"
 601     cat > $TMPC
 602     log_file $TMPC
 603     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 604 }
 605
 606 check_cpp(){
 607     log check_cpp "$@"
 608     cat > $TMPC
 609     log_file $TMPC
 610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 611 }
 612
 613 check_as(){
 614     log check_as "$@"
 615     cat > $TMPC
 616     log_file $TMPC
 617     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 618 }
 619
 620 check_asm(){
 621     log check_asm "$@"
 622     name="$1"
 623     code="$2"
 624     shift 2
 625     disable $name
 626     check_as "$@" <<EOF && enable $name
 627 void foo(void){ __asm__ volatile($code); }
 628 EOF
 629 }
 630
 631 check_yasm(){
 632     log check_yasm "$@"
 633     echo "$1" > $TMPS
 634     log_file $TMPS
 635     shift 1
 636     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 637 }
 638
 639 check_ld(){
 640     log check_ld "$@"
 641     flags=''
 642     libs=''
 643     for f; do
 644         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 645     done
 646     check_cc $($filter_cflags $flags) || return
 647     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 648 }
 649
 650 check_cppflags(){
 651     log check_cppflags "$@"
 652     set -- $($filter_cppflags "$@")
 653     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 654 int x;
 655 EOF
 656 }
 657
 658 check_cflags(){
 659     log check_cflags "$@"
 660     set -- $($filter_cflags "$@")
 661     check_cc "$@" <<EOF && append CFLAGS "$@"
 662 int x;
 663 EOF
 664 }
 665
 666 test_ldflags(){
 667     log test_ldflags "$@"
 668     check_ld "$@" <<EOF
 669 int main(void){ return 0; }
 670 EOF
 671 }
 672
 673 check_ldflags(){
 674     log check_ldflags "$@"
 675     test_ldflags "$@" && add_ldflags "$@"
 676 }
 677
 678 check_header(){
 679     log check_header "$@"
 680     header=$1
 681     shift
 682     disable_safe $header
 683     check_cpp "$@" <<EOF && enable_safe $header
 684 #include <$header>
 685 int x;
 686 EOF
 687 }
 688
 689 check_func(){
 690     log check_func "$@"
 691     func=$1
 692     shift
 693     disable $func
 694     check_ld "$@" <<EOF && enable $func
 695 extern int $func();
 696 int main(void){ $func(); }
 697 EOF
 698 }
 699
 700 check_mathfunc(){
 701     log check_mathfunc "$@"
 702     func=$1
 703     shift
 704     disable $func
 705     check_ld "$@" <<EOF && enable $func
 706 #include <math.h>
 707 float foo(float f) { return $func(f); }
 708 int main(void){ return 0; }
 709 EOF
 710 }
 711
 712 check_func_headers(){
 713     log check_func_headers "$@"
 714     headers=$1
 715     funcs=$2
 716     shift 2
 717     {
 718         for hdr in $headers; do
 719             echo "#include <$hdr>"
 720         done
 721         for func in $funcs; do
 722             echo "long check_$func(void) { return (long) $func; }"
 723         done
 724         echo "int main(void) { return 0; }"
 725     } | check_ld "$@" && enable $funcs && enable_safe $headers
 726 }
 727
 728 check_cpp_condition(){
 729     log check_cpp_condition "$@"
 730     header=$1
 731     condition=$2
 732     shift 2
 733     check_cpp $($filter_cppflags "$@") <<EOF
 734 #include <$header>
 735 #if !($condition)
 736 #error "unsatisfied condition: $condition"
 737 #endif
 738 EOF
 739 }
 740
 741 check_lib(){
 742     log check_lib "$@"
 743     header="$1"
 744     func="$2"
 745     shift 2
 746     check_header $header && check_func $func "$@" && add_extralibs "$@"
 747 }
 748
 749 check_lib2(){
 750     log check_lib2 "$@"
 751     headers="$1"
 752     funcs="$2"
 753     shift 2
 754     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 755 }
 756
 757 check_pkg_config(){
 758     log check_pkg_config "$@"
 759     pkg="$1"
 760     headers="$2"
 761     funcs="$3"
 762     shift 3
 763     $pkg_config --exists $pkg || return
 764     pkg_cflags=$($pkg_config --cflags $pkg)
 765     pkg_libs=$($pkg_config --libs $pkg)
 766     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 767         set_safe ${pkg}_cflags $pkg_cflags   &&
 768         set_safe ${pkg}_libs   $pkg_libs
 769 }
 770
 771 check_exec(){
 772     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 773 }
 774
 775 check_exec_crash(){
 776     code=$(cat)
 777
 778     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 779     # are safe but may not be available everywhere.  Thus we use
 780     # raise(SIGTERM) instead.  The check is run in a subshell so we
 781     # can redirect the "Terminated" message from the shell.  SIGBUS
 782     # is not defined by standard C so it is used conditionally.
 783
 784     (check_exec "$@") >> $logfile 2>&1 <<EOF
 785 #include <signal.h>
 786 static void sighandler(int sig){
 787     raise(SIGTERM);
 788 }
 789 int main(void){
 790     signal(SIGILL, sighandler);
 791     signal(SIGFPE, sighandler);
 792     signal(SIGSEGV, sighandler);
 793 #ifdef SIGBUS
 794     signal(SIGBUS, sighandler);
 795 #endif
 796     { $code }
 797 }
 798 EOF
 799 }
 800
 801 check_type(){
 802     log check_type "$@"
 803     headers=$1
 804     type=$2
 805     shift 2
 806     disable_safe "$type"
 807     incs=""
 808     for hdr in $headers; do
 809         incs="$incs
 810 #include <$hdr>"
 811     done
 812     check_cc "$@" <<EOF && enable_safe "$type"
 813 $incs
 814 $type v;
 815 EOF
 816 }
 817
 818 check_struct(){
 819     log check_type "$@"
 820     headers=$1
 821     struct=$2
 822     member=$3
 823     shift 3
 824     disable_safe "${struct}_${member}"
 825     incs=""
 826     for hdr in $headers; do
 827         incs="$incs
 828 #include <$hdr>"
 829     done
 830     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 831 $incs
 832 const void *p = &(($struct *)0)->$member;
 833 EOF
 834 }
 835
 836 require(){
 837     name="$1"
 838     header="$2"
 839     func="$3"
 840     shift 3
 841     check_lib $header $func "$@" || die "ERROR: $name not found"
 842 }
 843
 844 require2(){
 845     name="$1"
 846     headers="$2"
 847     func="$3"
 848     shift 3
 849     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 850 }
 851
 852 require_pkg_config(){
 853     pkg="$1"
 854     check_pkg_config "$@" || die "ERROR: $pkg not found"
 855     add_cflags    $(get_safe ${pkg}_cflags)
 856     add_extralibs $(get_safe ${pkg}_libs)
 857 }
 858
 859 check_host_cc(){
 860     log check_host_cc "$@"
 861     cat > $TMPC
 862     log_file $TMPC
 863     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 864 }
 865
 866 check_host_cflags(){
 867     log check_host_cflags "$@"
 868     check_host_cc "$@" <<EOF && append host_cflags "$@"
 869 int x;
 870 EOF
 871 }
 872
 873 apply(){
 874     file=$1
 875     shift
 876     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 877 }
 878
 879 cp_if_changed(){
 880     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 881     mkdir -p "$(dirname $2)"
 882     cp -f "$1" "$2"
 883 }
 884
 885 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 886 # system-dependent things.
 887
 888 COMPONENT_LIST="
 889     bsfs
 890     decoders
 891     demuxers
 892     encoders
 893     filters
 894     hwaccels
 895     indevs
 896     muxers
 897     outdevs
 898     parsers
 899     protocols
 900 "
 901
 902 CONFIG_LIST="
 903     $COMPONENT_LIST
 904     aandct
 905     ac3dsp
 906     avcodec
 907     avdevice
 908     avfilter
 909     avformat
 910     avisynth
 911     bzlib
 912     dct
 913     doc
 914     dwt
 915     dxva2
 916     fastdiv
 917     ffmpeg
 918     avconv
 919     avplay
 920     avprobe
 921     avserver
 922     fft
 923     frei0r
 924     golomb
 925     gpl
 926     gray
 927     h264dsp
 928     h264pred
 929     hardcoded_tables
 930     huffman
 931     libcdio
 932     libdc1394
 933     libdirac
 934     libfaac
 935     libfreetype
 936     libgsm
 937     libmp3lame
 938     libnut
 939     libopencore_amrnb
 940     libopencore_amrwb
 941     libopencv
 942     libopenjpeg
 943     librtmp
 944     libschroedinger
 945     libspeex
 946     libtheora
 947     libvo_aacenc
 948     libvo_amrwbenc
 949     libvorbis
 950     libvpx
 951     libx264
 952     libxavs
 953     libxvid
 954     lpc
 955     lsp
 956     mdct
 957     memalign_hack
 958     mlib
 959     mpegaudiodsp
 960     network
 961     nonfree
 962     pic
 963     postproc
 964     rdft
 965     rtpdec
 966     runtime_cpudetect
 967     shared
 968     sinewin
 969     small
 970     sram
 971     static
 972     swscale
 973     swscale_alpha
 974     thumb
 975     vaapi
 976     vdpau
 977     version3
 978     x11grab
 979     zlib
 980 "
 981
 982 THREADS_LIST='
 983     pthreads
 984     w32threads
 985 '
 986
 987 ARCH_LIST='
 988     alpha
 989     arm
 990     avr32
 991     avr32_ap
 992     avr32_uc
 993     bfin
 994     ia64
 995     m68k
 996     mips
 997     mips64
 998     parisc
 999     ppc
1000     ppc64
1001     s390
1002     sh4
1003     sparc
1004     sparc64
1005     tomi
1006     x86
1007     x86_32
1008     x86_64
1009 '
1010
1011 ARCH_EXT_LIST='
1012     altivec
1013     amd3dnow
1014     amd3dnowext
1015     armv5te
1016     armv6
1017     armv6t2
1018     armvfp
1019     avx
1020     iwmmxt
1021     mmi
1022     mmx
1023     mmx2
1024     neon
1025     ppc4xx
1026     sse
1027     ssse3
1028     vfpv3
1029     vis
1030 '
1031
1032 HAVE_LIST_PUB='
1033     bigendian
1034     fast_unaligned
1035 '
1036
1037 HAVE_LIST="
1038     $ARCH_EXT_LIST
1039     $HAVE_LIST_PUB
1040     $THREADS_LIST
1041     aligned_stack
1042     alsa_asoundlib_h
1043     altivec_h
1044     arpa_inet_h
1045     asm_mod_y
1046     attribute_may_alias
1047     attribute_packed
1048     bswap
1049     closesocket
1050     cmov
1051     dcbzl
1052     dev_bktr_ioctl_bt848_h
1053     dev_bktr_ioctl_meteor_h
1054     dev_ic_bt8xx_h
1055     dev_video_meteor_ioctl_meteor_h
1056     dev_video_bktr_ioctl_bt848_h
1057     dlfcn_h
1058     dlopen
1059     dos_paths
1060     ebp_available
1061     ebx_available
1062     exp2
1063     exp2f
1064     fast_64bit
1065     fast_clz
1066     fast_cmov
1067     fcntl
1068     fork
1069     getaddrinfo
1070     gethrtime
1071     GetProcessMemoryInfo
1072     GetProcessTimes
1073     getrusage
1074     gnu_as
1075     struct_rusage_ru_maxrss
1076     ibm_asm
1077     inet_aton
1078     inline_asm
1079     isatty
1080     ldbrx
1081     libdc1394_1
1082     libdc1394_2
1083     llrint
1084     llrintf
1085     local_aligned_16
1086     local_aligned_8
1087     localtime_r
1088     log2
1089     log2f
1090     loongson
1091     lrint
1092     lrintf
1093     lzo1x_999_compress
1094     machine_ioctl_bt848_h
1095     machine_ioctl_meteor_h
1096     malloc_h
1097     MapViewOfFile
1098     memalign
1099     mkstemp
1100     mmap
1101     posix_memalign
1102     round
1103     roundf
1104     sdl
1105     sdl_video_size
1106     setmode
1107     sndio_h
1108     socklen_t
1109     soundcard_h
1110     poll_h
1111     setrlimit
1112     strerror_r
1113     strptime
1114     strtok_r
1115     struct_addrinfo
1116     struct_ipv6_mreq
1117     struct_sockaddr_in6
1118     struct_sockaddr_sa_len
1119     struct_sockaddr_storage
1120     symver
1121     symver_gnu_asm
1122     symver_asm_label
1123     sys_mman_h
1124     sys_resource_h
1125     sys_select_h
1126     sys_soundcard_h
1127     sys_videoio_h
1128     threads
1129     trunc
1130     truncf
1131     vfp_args
1132     VirtualAlloc
1133     winsock2_h
1134     xform_asm
1135     xmm_clobbers
1136     yasm
1137 "
1138
1139 # options emitted with CONFIG_ prefix but not available on command line
1140 CONFIG_EXTRA="
1141     avutil
1142     gplv3
1143     lgplv3
1144 "
1145
1146 CMDLINE_SELECT="
1147     $ARCH_EXT_LIST
1148     $CONFIG_LIST
1149     $THREADS_LIST
1150     asm
1151     cross_compile
1152     debug
1153     extra_warnings
1154     logging
1155     optimizations
1156     symver
1157     yasm
1158 "
1159
1160 PATHS_LIST='
1161     bindir
1162     datadir
1163     incdir
1164     libdir
1165     mandir
1166     prefix
1167     shlibdir
1168 '
1169
1170 CMDLINE_SET="
1171     $PATHS_LIST
1172     ar
1173     arch
1174     as
1175     build_suffix
1176     cc
1177     cpu
1178     cross_prefix
1179     dep_cc
1180     extra_version
1181     host_cc
1182     host_cflags
1183     host_ldflags
1184     host_libs
1185     host_os
1186     ld
1187     logfile
1188     malloc_prefix
1189     nm
1190     optflags
1191     pkg_config
1192     samples
1193     sysinclude
1194     sysroot
1195     target_exec
1196     target_os
1197     target_path
1198 "
1199
1200 CMDLINE_APPEND="
1201     extra_cflags
1202 "
1203
1204 # code dependency declarations
1205
1206 # architecture extensions
1207
1208 armv5te_deps="arm"
1209 armv6_deps="arm"
1210 armv6t2_deps="arm"
1211 armvfp_deps="arm"
1212 iwmmxt_deps="arm"
1213 neon_deps="arm"
1214 vfpv3_deps="armvfp"
1215
1216 mmi_deps="mips"
1217
1218 altivec_deps="ppc"
1219 ppc4xx_deps="ppc"
1220
1221 vis_deps="sparc"
1222
1223 x86_64_suggest="cmov fast_cmov"
1224 amd3dnow_deps="mmx"
1225 amd3dnowext_deps="amd3dnow"
1226 mmx_deps="x86"
1227 mmx2_deps="mmx"
1228 sse_deps="mmx"
1229 ssse3_deps="sse"
1230 avx_deps="ssse3"
1231
1232 aligned_stack_if_any="ppc x86"
1233 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1234 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1235 fast_unaligned_if_any="armv6 ppc x86"
1236
1237 need_memalign="altivec neon sse"
1238 inline_asm_deps="!tms470"
1239
1240 symver_if_any="symver_asm_label symver_gnu_asm"
1241
1242 # subsystems
1243 dct_select="rdft"
1244 mdct_select="fft"
1245 rdft_select="fft"
1246 mpegaudiodsp_select="dct"
1247
1248 # decoders / encoders / hardware accelerators
1249 aac_decoder_select="mdct sinewin"
1250 aac_encoder_select="mdct sinewin"
1251 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1252 ac3_decoder_select="mdct ac3dsp ac3_parser"
1253 ac3_encoder_select="mdct ac3dsp"
1254 ac3_fixed_encoder_select="mdct ac3dsp"
1255 alac_encoder_select="lpc"
1256 amrnb_decoder_select="lsp"
1257 amrwb_decoder_select="lsp"
1258 atrac1_decoder_select="mdct sinewin"
1259 atrac3_decoder_select="mdct"
1260 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1261 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1262 cavs_decoder_select="golomb"
1263 cook_decoder_select="mdct sinewin"
1264 cscd_decoder_suggest="zlib"
1265 dca_decoder_select="mdct"
1266 dnxhd_encoder_select="aandct"
1267 dxa_decoder_select="zlib"
1268 eac3_decoder_select="ac3_decoder"
1269 eac3_encoder_select="mdct ac3dsp"
1270 eamad_decoder_select="aandct"
1271 eatgq_decoder_select="aandct"
1272 eatqi_decoder_select="aandct"
1273 ffv1_decoder_select="golomb"
1274 flac_decoder_select="golomb"
1275 flac_encoder_select="golomb lpc"
1276 flashsv_decoder_select="zlib"
1277 flashsv_encoder_select="zlib"
1278 flashsv2_decoder_select="zlib"
1279 flv_decoder_select="h263_decoder"
1280 flv_encoder_select="h263_encoder"
1281 fraps_decoder_select="huffman"
1282 h261_encoder_select="aandct"
1283 h263_decoder_select="h263_parser"
1284 h263_encoder_select="aandct"
1285 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1286 h263i_decoder_select="h263_decoder"
1287 h263p_encoder_select="h263_encoder"
1288 h264_decoder_select="golomb h264dsp h264pred"
1289 h264_dxva2_hwaccel_deps="dxva2api_h"
1290 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1291 h264_vaapi_hwaccel_select="vaapi"
1292 h264_vdpau_decoder_select="vdpau h264_decoder"
1293 imc_decoder_select="fft mdct sinewin"
1294 jpegls_decoder_select="golomb"
1295 jpegls_encoder_select="golomb"
1296 ljpeg_encoder_select="aandct"
1297 loco_decoder_select="golomb"
1298 mjpeg_encoder_select="aandct"
1299 mlp_decoder_select="mlp_parser"
1300 mp1_decoder_select="mpegaudiodsp"
1301 mp2_decoder_select="mpegaudiodsp"
1302 mp3adu_decoder_select="mpegaudiodsp"
1303 mp3_decoder_select="mpegaudiodsp"
1304 mp3on4_decoder_select="mpegaudiodsp"
1305 mp1float_decoder_select="mpegaudiodsp"
1306 mp2float_decoder_select="mpegaudiodsp"
1307 mp3adufloat_decoder_select="mpegaudiodsp"
1308 mp3float_decoder_select="mpegaudiodsp"
1309 mp3on4float_decoder_select="mpegaudiodsp"
1310 mpeg1video_encoder_select="aandct"
1311 mpeg2video_encoder_select="aandct"
1312 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1313 mpeg4_encoder_select="h263_encoder"
1314 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1315 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1316 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1317 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1318 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1319 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1320 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1321 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1322 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1323 msmpeg4v1_decoder_select="h263_decoder"
1324 msmpeg4v1_encoder_select="h263_encoder"
1325 msmpeg4v2_decoder_select="h263_decoder"
1326 msmpeg4v2_encoder_select="h263_encoder"
1327 msmpeg4v3_decoder_select="h263_decoder"
1328 msmpeg4v3_encoder_select="h263_encoder"
1329 nellymoser_decoder_select="mdct sinewin"
1330 nellymoser_encoder_select="mdct sinewin"
1331 png_decoder_select="zlib"
1332 png_encoder_select="zlib"
1333 qcelp_decoder_select="lsp"
1334 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1335 ra_144_encoder_select="lpc"
1336 rv10_decoder_select="h263_decoder"
1337 rv10_encoder_select="h263_encoder"
1338 rv20_decoder_select="h263_decoder"
1339 rv20_encoder_select="h263_encoder"
1340 rv30_decoder_select="golomb h264pred"
1341 rv40_decoder_select="golomb h264pred"
1342 shorten_decoder_select="golomb"
1343 sipr_decoder_select="lsp"
1344 snow_decoder_select="dwt"
1345 snow_encoder_select="aandct dwt"
1346 svq1_encoder_select="aandct"
1347 svq3_decoder_select="golomb h264dsp h264pred"
1348 svq3_decoder_suggest="zlib"
1349 theora_decoder_select="vp3_decoder"
1350 tiff_decoder_suggest="zlib"
1351 tiff_encoder_suggest="zlib"
1352 truehd_decoder_select="mlp_decoder"
1353 tscc_decoder_select="zlib"
1354 twinvq_decoder_select="mdct lsp sinewin"
1355 vc1_decoder_select="h263_decoder"
1356 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1357 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1358 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1359 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1360 vc1image_decoder_select="vc1_decoder"
1361 vorbis_decoder_select="mdct"
1362 vorbis_encoder_select="mdct"
1363 vp6_decoder_select="huffman"
1364 vp6a_decoder_select="vp6_decoder"
1365 vp6f_decoder_select="vp6_decoder"
1366 vp8_decoder_select="h264pred"
1367 wmapro_decoder_select="mdct sinewin"
1368 wmav1_decoder_select="mdct sinewin"
1369 wmav1_encoder_select="mdct sinewin"
1370 wmav2_decoder_select="mdct sinewin"
1371 wmav2_encoder_select="mdct sinewin"
1372 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1373 wmv1_decoder_select="h263_decoder"
1374 wmv1_encoder_select="h263_encoder"
1375 wmv2_decoder_select="h263_decoder"
1376 wmv2_encoder_select="h263_encoder"
1377 wmv3_decoder_select="vc1_decoder"
1378 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1379 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1380 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1381 wmv3image_decoder_select="wmv3_decoder"
1382 zlib_decoder_select="zlib"
1383 zlib_encoder_select="zlib"
1384 zmbv_decoder_select="zlib"
1385 zmbv_encoder_select="zlib"
1386
1387 vaapi_deps="va_va_h"
1388 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1389
1390 # parsers
1391 h264_parser_select="golomb h264dsp h264pred"
1392
1393 # external libraries
1394 libdirac_decoder_deps="libdirac !libschroedinger"
1395 libdirac_encoder_deps="libdirac"
1396 libfaac_encoder_deps="libfaac"
1397 libgsm_decoder_deps="libgsm"
1398 libgsm_encoder_deps="libgsm"
1399 libgsm_ms_decoder_deps="libgsm"
1400 libgsm_ms_encoder_deps="libgsm"
1401 libmp3lame_encoder_deps="libmp3lame"
1402 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1403 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1404 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1405 libopenjpeg_decoder_deps="libopenjpeg"
1406 libschroedinger_decoder_deps="libschroedinger"
1407 libschroedinger_encoder_deps="libschroedinger"
1408 libspeex_decoder_deps="libspeex"
1409 libtheora_encoder_deps="libtheora"
1410 libvo_aacenc_encoder_deps="libvo_aacenc"
1411 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1412 libvorbis_encoder_deps="libvorbis"
1413 libvpx_decoder_deps="libvpx"
1414 libvpx_encoder_deps="libvpx"
1415 libx264_encoder_deps="libx264"
1416 libxavs_encoder_deps="libxavs"
1417 libxvid_encoder_deps="libxvid"
1418
1419 # demuxers / muxers
1420 ac3_demuxer_select="ac3_parser"
1421 asf_stream_muxer_select="asf_muxer"
1422 avisynth_demuxer_deps="avisynth"
1423 dirac_demuxer_select="dirac_parser"
1424 eac3_demuxer_select="ac3_parser"
1425 flac_demuxer_select="flac_parser"
1426 ipod_muxer_select="mov_muxer"
1427 libnut_demuxer_deps="libnut"
1428 libnut_muxer_deps="libnut"
1429 matroska_audio_muxer_select="matroska_muxer"
1430 matroska_demuxer_suggest="zlib bzlib"
1431 mov_demuxer_suggest="zlib"
1432 mp3_demuxer_select="mpegaudio_parser"
1433 mp4_muxer_select="mov_muxer"
1434 mpegtsraw_demuxer_select="mpegts_demuxer"
1435 mxf_d10_muxer_select="mxf_muxer"
1436 ogg_demuxer_select="golomb"
1437 psp_muxer_select="mov_muxer"
1438 rtp_demuxer_select="sdp_demuxer"
1439 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1440 rtsp_demuxer_select="http_protocol rtpdec"
1441 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1442 sap_demuxer_select="sdp_demuxer"
1443 sap_muxer_select="rtp_muxer rtp_protocol"
1444 sdp_demuxer_select="rtpdec"
1445 spdif_muxer_select="aac_parser"
1446 tg2_muxer_select="mov_muxer"
1447 tgp_muxer_select="mov_muxer"
1448 w64_demuxer_deps="wav_demuxer"
1449
1450 # indevs / outdevs
1451 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1452 alsa_outdev_deps="alsa_asoundlib_h"
1453 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1454 dv1394_indev_deps="dv1394 dv_demuxer"
1455 fbdev_indev_deps="linux_fb_h"
1456 jack_indev_deps="jack_jack_h"
1457 libcdio_indev_deps="libcdio"
1458 libdc1394_indev_deps="libdc1394"
1459 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1460 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1461 sndio_indev_deps="sndio_h"
1462 sndio_outdev_deps="sndio_h"
1463 v4l_indev_deps="linux_videodev_h"
1464 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1465 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1466 vfwcap_indev_extralibs="-lavicap32"
1467 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1468 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1469
1470 # protocols
1471 gopher_protocol_deps="network"
1472 http_protocol_deps="network"
1473 http_protocol_select="tcp_protocol"
1474 mmsh_protocol_select="http_protocol"
1475 mmst_protocol_deps="network"
1476 rtmp_protocol_select="tcp_protocol"
1477 rtp_protocol_select="udp_protocol"
1478 tcp_protocol_deps="network"
1479 udp_protocol_deps="network"
1480
1481 # filters
1482 blackframe_filter_deps="gpl"
1483 cropdetect_filter_deps="gpl"
1484 drawtext_filter_deps="libfreetype"
1485 frei0r_filter_deps="frei0r dlopen strtok_r"
1486 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1487 hqdn3d_filter_deps="gpl"
1488 ocv_filter_deps="libopencv"
1489 scale_filter_deps="swscale"
1490 yadif_filter_deps="gpl"
1491
1492 # libraries
1493 avdevice_deps="avcodec avformat"
1494 avformat_deps="avcodec"
1495 postproc_deps="gpl"
1496
1497 # programs
1498 ffmpeg_deps="avcodec avformat swscale"
1499 ffmpeg_select="buffer_filter"
1500 avconv_deps="avcodec avformat swscale"
1501 avconv_select="buffer_filter"
1502 avplay_deps="avcodec avformat swscale sdl"
1503 avplay_select="rdft"
1504 avprobe_deps="avcodec avformat"
1505 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1506 avserver_extralibs='$ldl'
1507
1508 doc_deps="texi2html"
1509
1510 # tests
1511
1512 test_deps(){
1513     suf1=$1
1514     suf2=$2
1515     shift 2
1516     for v; do
1517         dep=${v%=*}
1518         tests=${v#*=}
1519         for name in ${tests}; do
1520             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1521         done
1522     done
1523 }
1524
1525 mxf_d10_test_deps="avfilter"
1526 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1527
1528 test_deps _encoder _decoder                                             \
1529     adpcm_g726=g726                                                     \
1530     adpcm_ima_qt                                                        \
1531     adpcm_ima_wav                                                       \
1532     adpcm_ms                                                            \
1533     adpcm_swf                                                           \
1534     adpcm_yamaha=adpcm_yam                                              \
1535     alac                                                                \
1536     asv1                                                                \
1537     asv2                                                                \
1538     bmp                                                                 \
1539     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1540     dvvideo="dv dv50"                                                   \
1541     ffv1                                                                \
1542     flac                                                                \
1543     flashsv                                                             \
1544     flv                                                                 \
1545     gif                                                                 \
1546     h261                                                                \
1547     h263="h263 h263p"                                                   \
1548     huffyuv                                                             \
1549     jpegls                                                              \
1550     mjpeg="jpg mjpeg ljpeg"                                             \
1551     mp2                                                                 \
1552     mpeg1video="mpeg mpeg1b"                                            \
1553     mpeg2video="mpeg2 mpeg2thread"                                      \
1554     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1555     msmpeg4v3=msmpeg4                                                   \
1556     msmpeg4v2                                                           \
1557     pbm=pbmpipe                                                         \
1558     pcx                                                                 \
1559     pgm="pgm pgmpipe"                                                   \
1560     png                                                                 \
1561     ppm="ppm ppmpipe"                                                   \
1562     rawvideo="rgb yuv"                                                  \
1563     roq                                                                 \
1564     rv10                                                                \
1565     rv20                                                                \
1566     sgi                                                                 \
1567     snow="snow snowll"                                                  \
1568     svq1                                                                \
1569     targa=tga                                                           \
1570     tiff                                                                \
1571     wmav1                                                               \
1572     wmav2                                                               \
1573     wmv1                                                                \
1574     wmv2                                                                \
1575
1576 test_deps _muxer _demuxer                                               \
1577     aiff                                                                \
1578     pcm_alaw=alaw                                                       \
1579     asf                                                                 \
1580     au                                                                  \
1581     avi                                                                 \
1582     dv=dv_fmt                                                           \
1583     ffm                                                                 \
1584     flv=flv_fmt                                                         \
1585     gxf                                                                 \
1586     matroska=mkv                                                        \
1587     mmf                                                                 \
1588     mov                                                                 \
1589     pcm_mulaw=mulaw                                                     \
1590     mxf="mxf mxf_d10"                                                   \
1591     nut                                                                 \
1592     ogg                                                                 \
1593     rawvideo=pixfmt                                                     \
1594     rm                                                                  \
1595     swf                                                                 \
1596     mpegts=ts                                                           \
1597     voc                                                                 \
1598     wav                                                                 \
1599     yuv4mpegpipe=yuv4mpeg                                               \
1600
1601 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1602 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1603
1604 # default parameters
1605
1606 logfile="config.log"
1607
1608 # installation paths
1609 prefix_default="/usr/local"
1610 bindir_default='${prefix}/bin'
1611 datadir_default='${prefix}/share/avconv'
1612 incdir_default='${prefix}/include'
1613 libdir_default='${prefix}/lib'
1614 mandir_default='${prefix}/share/man'
1615 shlibdir_default="$libdir_default"
1616
1617 # toolchain
1618 ar_default="ar"
1619 cc_default="gcc"
1620 cc_version=\"unknown\"
1621 host_cc_default="gcc"
1622 ln_s="ln -sf"
1623 nm_default="nm"
1624 objformat="elf"
1625 pkg_config_default=pkg-config
1626 ranlib="ranlib"
1627 yasmexe="yasm"
1628 nogas=":"
1629
1630 nm_opts='-g'
1631
1632 # machine
1633 arch_default=$(uname -m)
1634 cpu="generic"
1635
1636 # OS
1637 target_os_default=$(tolower $(uname -s))
1638 host_os=$target_os_default
1639
1640 # configurable options
1641 enable avcodec
1642 enable avdevice
1643 enable avfilter
1644 enable avformat
1645 enable avutil
1646 enable asm
1647 enable debug
1648 enable doc
1649 enable fastdiv
1650 enable ffmpeg
1651 enable avconv
1652 enable avplay
1653 enable avprobe
1654 enable avserver
1655 enable network
1656 enable optimizations
1657 enable postproc
1658 enable protocols
1659 enable static
1660 enable swscale
1661 enable swscale_alpha
1662
1663 # build settings
1664 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1665 AVSERVERLDFLAGS=-Wl,-E
1666 LIBPREF="lib"
1667 LIBSUF=".a"
1668 FULLNAME='$(NAME)$(BUILDSUF)'
1669 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1670 SLIBPREF="lib"
1671 SLIBSUF=".so"
1672 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1673 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1674 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1675 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1676 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1677 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1678
1679 AS_O='-o $@'
1680 CC_O='-o $@'
1681
1682 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1683 host_libs='-lm'
1684
1685 target_path='$(CURDIR)'
1686
1687 # since the object filename is not given with the -MM flag, the compiler
1688 # is only able to print the basename, and we must add the path ourselves
1689 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1690 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1691
1692 # find source path
1693 if test -f configure; then
1694     source_path=.
1695 else
1696     source_path=$(cd $(dirname "$0"); pwd)
1697     echo "$source_path" | grep -q '[[:blank:]]' &&
1698         die "Out of tree builds are impossible with whitespace in source path."
1699     test -e "$source_path/config.h" &&
1700         die "Out of tree builds are impossible with config.h in source dir."
1701 fi
1702
1703 for v in "$@"; do
1704     r=${v#*=}
1705     l=${v%"$r"}
1706     r=$(sh_quote "$r")
1707     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1708 done
1709
1710 find_things(){
1711     thing=$1
1712     pattern=$2
1713     file=$source_path/$3
1714     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1715 }
1716
1717 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1718 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1719 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1720 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1721 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1722 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1723 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1724 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1725 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1726 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1727 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1728
1729 find_tests(){
1730     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1731 }
1732
1733 ACODEC_TESTS=$(find_tests acodec)
1734 VCODEC_TESTS=$(find_tests vsynth1)
1735 LAVF_TESTS=$(find_tests lavf)
1736 LAVFI_TESTS=$(find_tests lavfi)
1737 SEEK_TESTS=$(find_tests seek seek_)
1738
1739 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1740
1741 for n in $COMPONENT_LIST; do
1742     v=$(toupper ${n%s})_LIST
1743     eval enable \$$v
1744     eval ${n}_if_any="\$$v"
1745 done
1746
1747 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1748
1749 die_unknown(){
1750     echo "Unknown option \"$1\"."
1751     echo "See $0 --help for available options."
1752     exit 1
1753 }
1754
1755 show_list() {
1756     suffix=_$1
1757     shift
1758     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1759     exit 0
1760 }
1761
1762 for opt do
1763     optval="${opt#*=}"
1764     case "$opt" in
1765     --extra-ldflags=*) add_ldflags $optval
1766     ;;
1767     --extra-libs=*) add_extralibs $optval
1768     ;;
1769     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1770     ;;
1771     --enable-debug=*) debuglevel="$optval"
1772     ;;
1773     --disable-everything)
1774     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1775     ;;
1776     --enable-*=*|--disable-*=*)
1777     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1778     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1779     eval list=\$$(toupper $thing)_LIST
1780     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1781     $action $(filter "$name" $list)
1782     ;;
1783     --enable-?*|--disable-?*)
1784     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1785     if is_in $option $COMPONENT_LIST; then
1786         test $action = disable && action=unset
1787         eval $action \$$(toupper ${option%s})_LIST
1788     elif is_in $option $CMDLINE_SELECT; then
1789         $action $option
1790     else
1791         die_unknown $opt
1792     fi
1793     ;;
1794     --list-*)
1795         NAME="${opt#--list-}"
1796         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1797         NAME=${NAME%s}
1798         eval show_list $NAME \$$(toupper $NAME)_LIST
1799     ;;
1800     --help|-h) show_help
1801     ;;
1802     *)
1803     optname="${opt%%=*}"
1804     optname="${optname#--}"
1805     optname=$(echo "$optname" | sed 's/-/_/g')
1806     if is_in $optname $CMDLINE_SET; then
1807         eval $optname='$optval'
1808     elif is_in $optname $CMDLINE_APPEND; then
1809         append $optname "$optval"
1810     else
1811          die_unknown $opt
1812     fi
1813     ;;
1814     esac
1815 done
1816
1817 disabled logging && logfile=/dev/null
1818
1819 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1820 set >> $logfile
1821
1822 test -n "$cross_prefix" && enable cross_compile
1823
1824 if enabled cross_compile; then
1825     test -n "$arch" && test -n "$target_os" ||
1826         die "Must specify target arch and OS when cross-compiling"
1827 fi
1828
1829 set_default arch target_os
1830
1831 ar_default="${cross_prefix}${ar_default}"
1832 cc_default="${cross_prefix}${cc_default}"
1833 nm_default="${cross_prefix}${nm_default}"
1834 pkg_config_default="${cross_prefix}${pkg_config_default}"
1835 ranlib="${cross_prefix}${ranlib}"
1836
1837 sysinclude_default="${sysroot}/usr/include"
1838
1839 set_default cc nm pkg_config sysinclude
1840 enabled cross_compile || host_cc_default=$cc
1841 set_default host_cc
1842
1843 if ! $pkg_config --version >/dev/null 2>&1; then
1844     warn "$pkg_config not found, library detection may fail."
1845     pkg_config=false
1846 fi
1847
1848 exesuf() {
1849     case $1 in
1850         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1851     esac
1852 }
1853
1854 EXESUF=$(exesuf $target_os)
1855 HOSTEXESUF=$(exesuf $host_os)
1856
1857 # set temporary file name
1858 : ${TMPDIR:=$TEMPDIR}
1859 : ${TMPDIR:=$TMP}
1860 : ${TMPDIR:=/tmp}
1861
1862 if ! check_cmd mktemp -u XXXXXX; then
1863     # simple replacement for missing mktemp
1864     # NOT SAFE FOR GENERAL USE
1865     mktemp(){
1866         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1867     }
1868 fi
1869
1870 tmpfile(){
1871     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1872         (set -C; exec > $tmp) 2>/dev/null ||
1873         die "Unable to create temporary file in $TMPDIR."
1874     append TMPFILES $tmp
1875     eval $1=$tmp
1876 }
1877
1878 trap 'rm -f -- $TMPFILES' EXIT
1879
1880 tmpfile TMPC  .c
1881 tmpfile TMPE  $EXESUF
1882 tmpfile TMPH  .h
1883 tmpfile TMPO  .o
1884 tmpfile TMPS  .S
1885 tmpfile TMPV  .ver
1886 tmpfile TMPSH .sh
1887 tmpfile TMPASM .asm
1888
1889 unset -f mktemp
1890
1891 chmod +x $TMPE
1892
1893 # make sure we can execute files in $TMPDIR
1894 cat > $TMPSH 2>> $logfile <<EOF
1895 #! /bin/sh
1896 EOF
1897 chmod +x $TMPSH >> $logfile 2>&1
1898 if ! $TMPSH >> $logfile 2>&1; then
1899     cat <<EOF
1900 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1901 variable to another directory and make sure that it is not mounted noexec.
1902 EOF
1903     die "Sanity test failed."
1904 fi
1905
1906 filter_cflags=echo
1907 filter_cppflags=echo
1908 filter_asflags=echo
1909
1910 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1911     cc_type=llvm_gcc
1912     cc_version=__VERSION__
1913     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1914     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1915     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1916     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1917     speed_cflags='-O3'
1918     size_cflags='-Os'
1919 elif $cc -v 2>&1 | grep -qi ^gcc; then
1920     cc_type=gcc
1921     cc_version=__VERSION__
1922     gcc_version=$($cc --version | head -n1)
1923     gcc_basever=$($cc -dumpversion)
1924     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1925     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1926     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1927     if ! $cc -dumpversion | grep -q '^2\.'; then
1928         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1929         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1930     fi
1931     speed_cflags='-O3'
1932     size_cflags='-Os'
1933 elif $cc --version 2>/dev/null | grep -q Intel; then
1934     cc_type=icc
1935     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1936     cc_ident=$($cc --version | head -n1)
1937     icc_version=$($cc -dumpversion)
1938     CC_DEPFLAGS='-MMD'
1939     AS_DEPFLAGS='-MMD'
1940     speed_cflags='-O3'
1941     size_cflags='-Os'
1942     noopt_cflags='-O1'
1943 elif $cc -v 2>&1 | grep -q xlc; then
1944     cc_type=xlc
1945     cc_version="AV_STRINGIFY(__IBMC__)"
1946     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1947     speed_cflags='-O5'
1948     size_cflags='-O5 -qcompact'
1949 elif $cc -V 2>/dev/null | grep -q Compaq; then
1950     cc_type=ccc
1951     cc_version="AV_STRINGIFY(__DECC_VER)"
1952     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1953     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1954     debuglevel=3
1955     add_ldflags -Wl,-z,now # calls to libots crash without this
1956     speed_cflags='-fast'
1957     size_cflags='-O1'
1958 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1959     test -d "$sysroot" || die "No valid sysroot specified."
1960     cc_type=armcc
1961     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1962     cc_ident=$($cc --vsn | head -n1)
1963     armcc_conf="$PWD/armcc.conf"
1964     $cc --arm_linux_configure                 \
1965         --arm_linux_config_file="$armcc_conf" \
1966         --configure_sysroot="$sysroot"        \
1967         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1968         die "Error creating armcc configuration file."
1969     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1970     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1971     as_default="${cross_prefix}gcc"
1972     CC_DEPFLAGS='-MMD'
1973     AS_DEPFLAGS='-MMD'
1974     speed_cflags='-O3'
1975     size_cflags='-Os'
1976     filter_asflags="filter_out -W${armcc_opt}*"
1977 elif $cc -version 2>/dev/null | grep -q TMS470; then
1978     cc_type=tms470
1979     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1980     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1981     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1982     CC_O='-fr=$(@D)'
1983     as_default="${cross_prefix}gcc"
1984     ld_default="${cross_prefix}gcc"
1985     TMPO=$(basename $TMPC .c).o
1986     append TMPFILES $TMPO
1987     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1988     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1989     AS_DEPFLAGS='-MMD'
1990     speed_cflags='-O3 -mf=5'
1991     size_cflags='-O3 -mf=2'
1992     filter_cflags=tms470_flags
1993     tms470_flags(){
1994         for flag; do
1995             case $flag in
1996                 -march=*|-mcpu=*)
1997                     case "${flag#*=}" in
1998                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1999                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2000                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2001                         armv6*|arm11*)          echo -mv=6   ;;
2002                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2003                                                 echo -mv=5e  ;;
2004                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2005                     esac
2006                     ;;
2007                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2008                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2009                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2010                 -msoft-float)   echo --float_support=vfplib       ;;
2011                 -O[0-3]|-mf=*)  echo $flag                        ;;
2012                 -g)             echo -g -mn                       ;;
2013                 -pds=*)         echo $flag                        ;;
2014             esac
2015         done
2016     }
2017 elif $cc -v 2>&1 | grep -q clang; then
2018     cc_type=clang
2019     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2020         cc_version=__clang_version__ || cc_version=__VERSION__
2021     cc_ident=$($cc --version | head -n1)
2022     CC_DEPFLAGS='-MMD'
2023     AS_DEPFLAGS='-MMD'
2024     speed_cflags='-O3'
2025     size_cflags='-Os'
2026 elif $cc -V 2>&1 | grep -q Sun; then
2027     cc_type=suncc
2028     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2029     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2030     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2031     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2032     add_ldflags -xc99
2033     speed_cflags='-O5'
2034     size_cflags='-O5 -xspace'
2035     filter_cflags=suncc_flags
2036     suncc_flags(){
2037         for flag; do
2038             case $flag in
2039                 -march=*|-mcpu=*)
2040                     case "${flag#*=}" in
2041                         native)                   echo -xtarget=native       ;;
2042                         v9|niagara)               echo -xarch=sparc          ;;
2043                         ultrasparc)               echo -xarch=sparcvis       ;;
2044                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2045                         i586|pentium)             echo -xchip=pentium        ;;
2046                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2047                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2048                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2049                         pentium4*)          echo -xtarget=pentium4           ;;
2050                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2051                         *-sse3)             echo -xarch=sse3                 ;;
2052                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2053                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2054                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2055                         k8|opteron|athlon64|athlon-fx)
2056                                                   echo -xarch=sse2a          ;;
2057                         athlon*)                  echo -xarch=pentium_proa   ;;
2058                     esac
2059                     ;;
2060                 -std=c99)             echo -xc99              ;;
2061                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2062                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2063                 -W*,*)                echo $flag              ;;
2064                 -f*-*|-W*)                                    ;;
2065                 *)                    echo $flag              ;;
2066             esac
2067         done
2068     }
2069 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2070     cc_type=pathscale
2071     cc_version=__PATHSCALE__
2072     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2073     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2074     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2075     speed_cflags='-O2'
2076     size_cflags='-Os'
2077     filter_cflags='filter_out -Wdisabled-optimization'
2078 elif $cc -v 2>&1 | grep -q Open64; then
2079     cc_type=open64
2080     cc_version=__OPEN64__
2081     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2082     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2083     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2084     speed_cflags='-O2'
2085     size_cflags='-Os'
2086     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2087 fi
2088
2089 test -n "$cc_type" && enable $cc_type ||
2090     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2091
2092 : ${as_default:=$cc}
2093 : ${dep_cc_default:=$cc}
2094 : ${ld_default:=$cc}
2095 set_default ar as dep_cc ld
2096
2097 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2098 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2099
2100 add_cflags $extra_cflags
2101 add_asflags $extra_cflags
2102
2103 if test -n "$sysroot"; then
2104     case "$cc_type" in
2105         gcc|llvm_gcc|clang)
2106             add_cppflags --sysroot="$sysroot"
2107             add_ldflags --sysroot="$sysroot"
2108         ;;
2109         tms470)
2110             add_cppflags -I"$sysinclude"
2111             add_ldflags  --sysroot="$sysroot"
2112         ;;
2113     esac
2114 fi
2115
2116 if test "$cpu" = host; then
2117     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2118
2119     case "$cc_type" in
2120         gcc|llvm_gcc)
2121             check_native(){
2122                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2123                 sed -n "/cc1.*$1=/{
2124                             s/.*$1=\\([^ ]*\\).*/\\1/
2125                             p
2126                             q
2127                         }" $TMPE
2128             }
2129             cpu=$(check_native -march || check_native -mcpu)
2130         ;;
2131     esac
2132
2133     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2134 fi
2135
2136 # Deal with common $arch aliases
2137 case "$arch" in
2138     arm*)
2139         arch="arm"
2140     ;;
2141     mips|mipsel|IP*)
2142         arch="mips"
2143     ;;
2144     mips64*)
2145         arch="mips"
2146         subarch="mips64"
2147     ;;
2148     parisc|hppa)
2149         arch="parisc"
2150     ;;
2151     parisc64|hppa64)
2152         arch="parisc"
2153         subarch="parisc64"
2154     ;;
2155     "Power Macintosh"|ppc|powerpc)
2156         arch="ppc"
2157     ;;
2158     ppc64|powerpc64)
2159         arch="ppc"
2160         subarch="ppc64"
2161     ;;
2162     s390|s390x)
2163         arch="s390"
2164     ;;
2165     sh4|sh)
2166         arch="sh4"
2167     ;;
2168     sun4u|sparc64)
2169         arch="sparc"
2170         subarch="sparc64"
2171     ;;
2172     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2173         arch="x86"
2174     ;;
2175 esac
2176
2177 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2178 enable $arch
2179
2180 # Add processor-specific flags
2181 if test "$cpu" = generic; then
2182     : do nothing
2183 elif enabled ppc; then
2184
2185     case $(tolower $cpu) in
2186         601|ppc601|powerpc601)
2187             cpuflags="-mcpu=601"
2188             disable altivec
2189         ;;
2190         603*|ppc603*|powerpc603*)
2191             cpuflags="-mcpu=603"
2192             disable altivec
2193         ;;
2194         604*|ppc604*|powerpc604*)
2195             cpuflags="-mcpu=604"
2196             disable altivec
2197         ;;
2198         g3|75*|ppc75*|powerpc75*)
2199             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2200             disable altivec
2201         ;;
2202         g4|745*|ppc745*|powerpc745*)
2203             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2204         ;;
2205         74*|ppc74*|powerpc74*)
2206             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2207         ;;
2208         g5|970|ppc970|powerpc970|power4*)
2209             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2210         ;;
2211         cell)
2212             cpuflags="-mcpu=cell"
2213             enable ldbrx
2214         ;;
2215         e500v2)
2216             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2217             disable altivec
2218         ;;
2219         e500)
2220             cpuflags="-mcpu=8540 -mhard-float"
2221             disable altivec
2222         ;;
2223     esac
2224
2225 elif enabled x86; then
2226
2227     case $cpu in
2228         i[345]86|pentium)
2229             cpuflags="-march=$cpu"
2230             disable mmx
2231         ;;
2232         # targets that do NOT support conditional mov (cmov)
2233         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2234             cpuflags="-march=$cpu"
2235             disable cmov
2236         ;;
2237         # targets that do support conditional mov (cmov)
2238         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2239             cpuflags="-march=$cpu"
2240             enable cmov
2241             enable fast_cmov
2242         ;;
2243         # targets that do support conditional mov but on which it's slow
2244         pentium4|pentium4m|prescott|nocona)
2245             cpuflags="-march=$cpu"
2246             enable cmov
2247             disable fast_cmov
2248         ;;
2249     esac
2250
2251 elif enabled sparc; then
2252
2253     case $cpu in
2254         niagara)
2255             cpuflags="-mcpu=$cpu"
2256             disable vis
2257         ;;
2258         sparc64)
2259             cpuflags="-mcpu=v9"
2260         ;;
2261     esac
2262
2263 elif enabled arm; then
2264
2265     case $cpu in
2266         armv*)
2267             cpuflags="-march=$cpu"
2268             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2269         ;;
2270         *)
2271             cpuflags="-mcpu=$cpu"
2272             case $cpu in
2273                 cortex-a*)                               subarch=armv7a  ;;
2274                 cortex-r*)                               subarch=armv7r  ;;
2275                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2276                 arm11*)                                  subarch=armv6   ;;
2277                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2278                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2279             esac
2280         ;;
2281     esac
2282
2283 elif enabled alpha; then
2284
2285     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2286
2287 elif enabled bfin; then
2288
2289     cpuflags="-mcpu=$cpu"
2290
2291 elif enabled mips; then
2292
2293     cpuflags="-march=$cpu"
2294
2295 elif enabled avr32; then
2296
2297     case $cpu in
2298         ap7[02]0[0-2])
2299             subarch="avr32_ap"
2300             cpuflags="-mpart=$cpu"
2301         ;;
2302         ap)
2303             subarch="avr32_ap"
2304             cpuflags="-march=$cpu"
2305         ;;
2306         uc3[ab]*)
2307             subarch="avr32_uc"
2308             cpuflags="-mcpu=$cpu"
2309         ;;
2310         uc)
2311             subarch="avr32_uc"
2312             cpuflags="-march=$cpu"
2313         ;;
2314     esac
2315
2316 fi
2317
2318 add_cflags $cpuflags
2319 add_asflags $cpuflags
2320
2321 # compiler sanity check
2322 check_exec <<EOF
2323 int main(void){ return 0; }
2324 EOF
2325 if test "$?" != 0; then
2326     echo "$cc is unable to create an executable file."
2327     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2328         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2329         echo "Only do this if you know what cross compiling means."
2330     fi
2331     die "C compiler test failed."
2332 fi
2333
2334 add_cppflags -D_ISOC99_SOURCE
2335 check_cflags -std=c99
2336 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2337 #include <stdlib.h>
2338 EOF
2339 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2340 #include <stdlib.h>
2341 EOF
2342
2343 check_host_cflags -std=c99
2344 check_host_cflags -Wall
2345
2346 case "$arch" in
2347     alpha|ia64|mips|parisc|sparc)
2348         spic=$shared
2349     ;;
2350     x86)
2351         subarch="x86_32"
2352         check_cc <<EOF && subarch="x86_64"
2353         int test[(int)sizeof(char*) - 7];
2354 EOF
2355         if test "$subarch" = "x86_64"; then
2356             spic=$shared
2357         fi
2358     ;;
2359 esac
2360
2361 enable $subarch
2362 enabled spic && enable pic
2363
2364 # OS specific
2365 case $target_os in
2366     haiku)
2367         prefix_default="/boot/common"
2368         network_extralibs="-lnetwork"
2369         host_libs=
2370         ;;
2371     sunos)
2372         AVSERVERLDFLAGS=""
2373         SHFLAGS='-shared -Wl,-h,$$(@F)'
2374         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2375         network_extralibs="-lsocket -lnsl"
2376         add_cppflags -D__EXTENSIONS__
2377         # When using suncc to build, the Solaris linker will mark
2378         # an executable with each instruction set encountered by
2379         # the Solaris assembler.  As our libraries contain their own
2380         # guards for processor-specific code, instead suppress
2381         # generation of the HWCAPS ELF section on Solaris x86 only.
2382         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2383         nm_opts='-P -g'
2384         ;;
2385     netbsd)
2386         disable symver
2387         oss_indev_extralibs="-lossaudio"
2388         oss_outdev_extralibs="-lossaudio"
2389         ;;
2390     openbsd)
2391         enable malloc_aligned
2392         # On OpenBSD 4.5. the compiler does not use PIC unless
2393         # explicitly using -fPIC. Libav builds fine without PIC,
2394         # however the generated executable will not do anything
2395         # (simply quits with exit-code 1, no crash, no output).
2396         # Thus explicitly enable PIC here.
2397         enable pic
2398         disable symver
2399         SHFLAGS='-shared'
2400         oss_indev_extralibs="-lossaudio"
2401         oss_outdev_extralibs="-lossaudio"
2402         ;;
2403     dragonfly)
2404         enable malloc_aligned
2405         disable symver
2406         ;;
2407     freebsd)
2408         enable malloc_aligned
2409         ;;
2410     bsd/os)
2411         add_extralibs -lpoll -lgnugetopt
2412         ;;
2413     darwin)
2414         enable malloc_aligned
2415         gas="gas-preprocessor.pl $cc"
2416         enabled ppc && add_asflags -force_cpusubtype_ALL
2417         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2418         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2419         add_ldflags -Wl,-dynamic,-search_paths_first
2420         SLIBSUF=".dylib"
2421         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2422         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2423         AVSERVERLDFLAGS=-Wl,-bind_at_load
2424         objformat="macho"
2425         enabled x86_64 && objformat="macho64"
2426         enabled_any pic shared ||
2427             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2428         ;;
2429     mingw32*)
2430         if test $target_os = "mingw32ce"; then
2431             disable network
2432         else
2433             target_os=mingw32
2434         fi
2435         LIBTARGET=i386
2436         if enabled x86_64; then
2437             enable malloc_aligned
2438             LIBTARGET="i386:x86-64"
2439         elif enabled arm; then
2440             LIBTARGET=arm-wince
2441         fi
2442         shlibdir_default="$bindir_default"
2443         SLIBPREF=""
2444         SLIBSUF=".dll"
2445         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2446         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2447         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2448         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2449         SLIB_INSTALL_LINKS=
2450         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2451         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2452         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'
2453         objformat="win32"
2454         dlltool="${cross_prefix}dlltool"
2455         enable dos_paths
2456         check_cflags -fno-common
2457         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2458                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2459                 die "ERROR: MinGW runtime version must be >= 3.15."
2460         add_cppflags -U__STRICT_ANSI__
2461         ;;
2462     cygwin*)
2463         target_os=cygwin
2464         shlibdir_default="$bindir_default"
2465         SLIBPREF="cyg"
2466         SLIBSUF=".dll"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2469         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2470         objformat="win32"
2471         enable dos_paths
2472         check_cflags -fno-common
2473         add_cppflags -U__STRICT_ANSI__
2474         ;;
2475     *-dos|freedos|opendos)
2476         network_extralibs="-lsocket"
2477         objformat="coff"
2478         enable dos_paths
2479         add_cppflags -U__STRICT_ANSI__
2480         ;;
2481     linux)
2482         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2483         enable dv1394
2484         ;;
2485     irix*)
2486         target_os=irix
2487         ranlib="echo ignoring ranlib"
2488         ;;
2489     os/2*)
2490         ln_s="cp -f"
2491         objformat="aout"
2492         add_cppflags -D_GNU_SOURCE
2493         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2494         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2495         AVSERVERLDFLAGS=""
2496         LIBSUF="_s.a"
2497         SLIBPREF=""
2498         SLIBSUF=".dll"
2499         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2500         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2501         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2502           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2503           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2504           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2505           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2506           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2507         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2508           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2509         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2510         enable dos_paths
2511         ;;
2512     gnu/kfreebsd)
2513         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2514         ;;
2515     gnu)
2516         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2517         ;;
2518     qnx)
2519         add_cppflags -D_QNX_SOURCE
2520         network_extralibs="-lsocket"
2521         ;;
2522     symbian)
2523         SLIBSUF=".dll"
2524         enable dos_paths
2525         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2526         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2527         add_ldflags -Wl,--target1-abs,--no-undefined \
2528                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2529                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2530         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2531                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2532                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2533         ;;
2534     none)
2535         ;;
2536     *)
2537         die "Unknown OS '$target_os'."
2538         ;;
2539 esac
2540
2541 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2542
2543 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2544
2545 set_default $PATHS_LIST
2546
2547 # we need to build at least one lib type
2548 if ! enabled_any static shared; then
2549     cat <<EOF
2550 At least one library type must be built.
2551 Specify --enable-static to build the static libraries or --enable-shared to
2552 build the shared libraries as well. To only build the shared libraries specify
2553 --disable-static in addition to --enable-shared.
2554 EOF
2555     exit 1;
2556 fi
2557
2558 die_license_disabled() {
2559     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2560 }
2561
2562 die_license_disabled gpl libcdio
2563 die_license_disabled gpl libx264
2564 die_license_disabled gpl libxavs
2565 die_license_disabled gpl libxvid
2566 die_license_disabled gpl x11grab
2567
2568 die_license_disabled nonfree libfaac
2569
2570 die_license_disabled version3 libopencore_amrnb
2571 die_license_disabled version3 libopencore_amrwb
2572 die_license_disabled version3 libvo_aacenc
2573 die_license_disabled version3 libvo_amrwbenc
2574
2575 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2576
2577 disabled optimizations || check_cflags -fomit-frame-pointer
2578
2579 enable_pic() {
2580     enable pic
2581     add_cppflags -DPIC
2582     add_cflags   -fPIC
2583     add_asflags  -fPIC
2584 }
2585
2586 enabled pic && enable_pic
2587
2588 check_cc <<EOF || die "Symbol mangling check failed."
2589 int ff_extern;
2590 EOF
2591 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2592 extern_prefix=${sym%%ff_extern*}
2593
2594 check_cc <<EOF && enable inline_asm
2595 void foo(void) { __asm__ volatile ("" ::); }
2596 EOF
2597
2598 _restrict=
2599 for restrict_keyword in restrict __restrict__ __restrict; do
2600     check_cc <<EOF && _restrict=$restrict_keyword && break
2601 void foo(char * $restrict_keyword p);
2602 EOF
2603 done
2604
2605 check_cc <<EOF && enable attribute_packed
2606 struct { int x; } __attribute__((packed)) x;
2607 EOF
2608
2609 check_cc <<EOF && enable attribute_may_alias
2610 union { int x; } __attribute__((may_alias)) x;
2611 EOF
2612
2613 check_cc <<EOF || die "endian test failed"
2614 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2615 EOF
2616 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2617
2618 if enabled alpha; then
2619
2620     check_cflags -mieee
2621
2622 elif enabled arm; then
2623
2624     enabled thumb && check_cflags -mthumb || check_cflags -marm
2625     nogas=die
2626
2627     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2628         enable vfp_args
2629     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2630         case "${cross_prefix:-$cc}" in
2631             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2632             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2633 __asm__ (".eabi_attribute 28, 1");
2634 int main(void) { return 0; }
2635 EOF
2636         esac
2637         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2638     fi
2639
2640     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2641     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2642     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2643     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2644     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2645     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2646     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2647
2648     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2649
2650     enabled_all armv6t2 shared !pic && enable_pic
2651
2652 elif enabled mips; then
2653
2654     check_asm loongson '"dmult.g $1, $2, $3"'
2655     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2656
2657 elif enabled ppc; then
2658
2659     enable local_aligned_8 local_aligned_16
2660
2661     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2662     check_asm ibm_asm   '"add 0, 0, 0"'
2663     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2664     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2665
2666     # AltiVec flags: The FSF version of GCC differs from the Apple version
2667     if enabled altivec; then
2668         nogas=warn
2669         check_cflags -maltivec -mabi=altivec &&
2670         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2671         check_cflags -faltivec
2672
2673         # check if our compiler supports Motorola AltiVec C API
2674         check_cc <<EOF || disable altivec
2675 $inc_altivec_h
2676 int main(void) {
2677     vector signed int v1, v2, v3;
2678     v1 = vec_add(v2,v3);
2679     return 0;
2680 }
2681 EOF
2682
2683         # check if our compiler supports braces for vector declarations
2684         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2685 $inc_altivec_h
2686 int main (void) { (vector int) {1}; return 0; }
2687 EOF
2688     fi
2689
2690 elif enabled sparc; then
2691
2692     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2693         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2694
2695 elif enabled x86; then
2696
2697     enable local_aligned_8 local_aligned_16
2698
2699     # check whether EBP is available on x86
2700     # As 'i' is stored on the stack, this program will crash
2701     # if the base pointer is used to access it because the
2702     # base pointer is cleared in the inline assembly code.
2703     check_exec_crash <<EOF && enable ebp_available
2704     volatile int i=0;
2705     __asm__ volatile (
2706         "xorl %%ebp, %%ebp"
2707     ::: "%ebp");
2708     return i;
2709 EOF
2710
2711     # check whether EBX is available on x86
2712     check_asm ebx_available '""::"b"(0)' &&
2713         check_asm ebx_available '"":::"%ebx"'
2714
2715     # check whether xmm clobbers are supported
2716     check_asm xmm_clobbers '"":::"%xmm0"'
2717
2718     # check whether binutils is new enough to compile SSSE3/MMX2
2719     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2720     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2721
2722     check_asm bswap '"bswap %%eax" ::: "%eax"'
2723
2724     if ! disabled_any asm mmx yasm; then
2725         if check_cmd $yasmexe --version; then
2726             enabled x86_64 && yasm_extra="-m amd64"
2727             yasm_debug="-g dwarf2"
2728         elif check_cmd nasm -v; then
2729             yasmexe=nasm
2730             yasm_debug="-g -F dwarf"
2731             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2732         fi
2733
2734         YASMFLAGS="-f $objformat $yasm_extra"
2735         enabled pic               && append YASMFLAGS "-DPIC"
2736         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2737         case "$objformat" in
2738             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2739         esac
2740
2741         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2742             die "yasm not found, use --disable-yasm for a crippled build"
2743         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2744     fi
2745
2746     case "$cpu" in
2747         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2748             disable fast_clz
2749         ;;
2750     esac
2751
2752 fi
2753
2754 if enabled asm; then
2755     as=${gas:=$as}
2756     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2757         $nogas "GNU assembler not found, install gas-preprocessor"
2758 fi
2759
2760 check_ldflags -Wl,--as-needed
2761
2762 if check_func dlopen; then
2763     ldl=
2764 elif check_func dlopen -ldl; then
2765     ldl=-ldl
2766 fi
2767
2768 if enabled network; then
2769     check_type "sys/types.h sys/socket.h" socklen_t
2770     check_type netdb.h "struct addrinfo"
2771     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2772     check_type netinet/in.h "struct sockaddr_in6"
2773     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2774     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2775     # Prefer arpa/inet.h over winsock2
2776     if check_header arpa/inet.h ; then
2777         check_func closesocket
2778     elif check_header winsock2.h ; then
2779         check_func_headers winsock2.h closesocket -lws2 && \
2780             network_extralibs="-lws2" || \
2781         { check_func_headers winsock2.h closesocket -lws2_32 && \
2782             network_extralibs="-lws2_32"; }
2783         check_type ws2tcpip.h socklen_t
2784         check_type ws2tcpip.h "struct addrinfo"
2785         check_type ws2tcpip.h "struct ipv6_mreq"
2786         check_type ws2tcpip.h "struct sockaddr_in6"
2787         check_type ws2tcpip.h "struct sockaddr_storage"
2788         check_struct winsock2.h "struct sockaddr" sa_len
2789     else
2790         disable network
2791     fi
2792 fi
2793
2794 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2795 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2796
2797 check_func  fcntl
2798 check_func  fork
2799 check_func  getaddrinfo $network_extralibs
2800 check_func  gethrtime
2801 check_func  getrusage
2802 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2803 check_func  inet_aton $network_extralibs
2804 check_func  isatty
2805 check_func  localtime_r
2806 check_func  ${malloc_prefix}memalign            && enable memalign
2807 check_func  mkstemp
2808 check_func  mmap
2809 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2810 check_func  setrlimit
2811 check_func  strerror_r
2812 check_func  strptime
2813 check_func  strtok_r
2814 check_func_headers io.h setmode
2815 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2816 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2817 check_func_headers windows.h GetProcessTimes
2818 check_func_headers windows.h MapViewOfFile
2819 check_func_headers windows.h VirtualAlloc
2820
2821 check_header dlfcn.h
2822 check_header dxva2api.h
2823 check_header malloc.h
2824 check_header poll.h
2825 check_header sys/mman.h
2826 check_header sys/resource.h
2827 check_header sys/select.h
2828 check_header vdpau/vdpau.h
2829 check_header vdpau/vdpau_x11.h
2830 check_header X11/extensions/XvMClib.h
2831
2832 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2833
2834 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2835 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2836
2837 # check for some common methods of building with pthread support
2838 # do this before the optional library checks as some of them require pthreads
2839 if ! disabled pthreads && ! enabled w32threads; then
2840     enable pthreads
2841     if check_func pthread_create; then
2842         :
2843     elif check_func pthread_create -pthread; then
2844         add_cflags -pthread
2845         add_extralibs -pthread
2846     elif check_func pthread_create -pthreads; then
2847         add_cflags -pthreads
2848         add_extralibs -pthreads
2849     elif check_func pthread_create -lpthreadGC2; then
2850         add_extralibs -lpthreadGC2
2851     elif ! check_lib pthread.h pthread_create -lpthread; then
2852         disable pthreads
2853     fi
2854 fi
2855
2856 for thread in $THREADS_LIST; do
2857     if enabled $thread; then
2858         test -n "$thread_type" &&
2859             die "ERROR: Only one thread type must be selected." ||
2860             thread_type="$thread"
2861     fi
2862 done
2863
2864 check_lib math.h sin -lm && LIBM="-lm"
2865 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2866
2867 check_mathfunc exp2
2868 check_mathfunc exp2f
2869 check_mathfunc llrint
2870 check_mathfunc llrintf
2871 check_mathfunc log2
2872 check_mathfunc log2f
2873 check_mathfunc lrint
2874 check_mathfunc lrintf
2875 check_mathfunc round
2876 check_mathfunc roundf
2877 check_mathfunc trunc
2878 check_mathfunc truncf
2879
2880 # these are off by default, so fail if requested and not available
2881 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2882 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2883 enabled libdirac   && require_pkg_config dirac                          \
2884     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2885     "dirac_decoder_init dirac_encoder_init"
2886 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2887 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2888 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2889 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2890 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2891 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2892 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2893 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2894 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2895 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2896 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2897 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2898 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2899 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2900 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2901 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2902 enabled libvpx     && {
2903     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2904                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2905     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2906                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2907 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2908                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2909                         die "ERROR: libx264 version must be >= 0.115."; }
2910 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2911 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2912 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2913
2914 # libdc1394 check
2915 if enabled libdc1394; then
2916     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2917         enable libdc1394_2; } ||
2918     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2919         enable libdc1394_1; } ||
2920     die "ERROR: No version of libdc1394 found "
2921 fi
2922
2923 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2924     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2925     enable sdl &&
2926     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2927 fi
2928
2929 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2930
2931 check_header linux/fb.h
2932 check_header linux/videodev.h
2933 check_header linux/videodev2.h
2934 check_header sys/videoio.h
2935
2936 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2937 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2938 # w32api 3.12 had it defined wrong
2939 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2940
2941 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2942 { check_header dev/bktr/ioctl_meteor.h &&
2943   check_header dev/bktr/ioctl_bt848.h; } ||
2944 { check_header machine/ioctl_meteor.h &&
2945   check_header machine/ioctl_bt848.h; } ||
2946 { check_header dev/video/meteor/ioctl_meteor.h &&
2947   check_header dev/video/bktr/ioctl_bt848.h; } ||
2948 check_header dev/ic/bt8xx.h
2949
2950 check_header sndio.h
2951 check_header sys/soundcard.h
2952 check_header soundcard.h
2953
2954 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2955
2956 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2957
2958 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2959
2960 enabled libcdio &&
2961     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2962
2963 enabled x11grab                         &&
2964 check_header X11/Xlib.h                 &&
2965 check_header X11/extensions/XShm.h      &&
2966 check_header X11/extensions/Xfixes.h    &&
2967 check_func XOpenDisplay -lX11           &&
2968 check_func XShmCreateImage -lX11 -lXext &&
2969 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2970
2971 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2972 check_cpp_condition \
2973     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2974     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2975       disable vdpau; }
2976 fi
2977
2978 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2979
2980 # add some useful compiler flags if supported
2981 check_cflags -Wdeclaration-after-statement
2982 check_cflags -Wall
2983 check_cflags -Wno-parentheses
2984 check_cflags -Wno-switch
2985 check_cflags -Wno-format-zero-length
2986 check_cflags -Wdisabled-optimization
2987 check_cflags -Wpointer-arith
2988 check_cflags -Wredundant-decls
2989 check_cflags -Wno-pointer-sign
2990 check_cflags -Wcast-qual
2991 check_cflags -Wwrite-strings
2992 check_cflags -Wtype-limits
2993 check_cflags -Wundef
2994 check_cflags -Wmissing-prototypes
2995 enabled extra_warnings && check_cflags -Winline
2996
2997 # add some linker flags
2998 check_ldflags -Wl,--warn-common
2999 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3000 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3001
3002 echo "X{};" > $TMPV
3003 if test_ldflags -Wl,--version-script,$TMPV; then
3004     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3005     check_cc <<EOF && enable symver_asm_label
3006 void ff_foo(void) __asm__ ("av_foo@VERSION");
3007 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3008 EOF
3009     check_cc <<EOF && enable symver_gnu_asm
3010 __asm__(".symver ff_foo,av_foo@VERSION");
3011 void ff_foo(void) {}
3012 EOF
3013 fi
3014
3015 if [ -n "$optflags" ]; then
3016     add_cflags $optflags
3017 elif enabled small; then
3018     add_cflags $size_cflags
3019 elif enabled optimizations; then
3020     add_cflags $speed_cflags
3021 else
3022     add_cflags $noopt_cflags
3023 fi
3024 check_cflags -fno-math-errno
3025 check_cflags -fno-signed-zeros
3026
3027 if enabled icc; then
3028     # Just warnings, no remarks
3029     check_cflags -w1
3030     # -wd: Disable following warnings
3031     # 144, 167, 556: -Wno-pointer-sign
3032     # 1292: attribute "foo" ignored
3033     # 10006: ignoring unknown option -fno-signed-zeros
3034     # 10148: ignoring unknown option -Wno-parentheses
3035     # 10156: ignoring option '-W'; no argument required
3036     check_cflags -wd144,167,556,1292,10006,10148,10156
3037     # 11030: Warning unknown option --as-needed
3038     # 10156: ignoring option '-export'; no argument required
3039     check_ldflags -wd10156,11030
3040     # Allow to compile with optimizations
3041     check_ldflags -march=$cpu
3042     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3043     enable ebp_available
3044     if enabled x86_32; then
3045         test ${icc_version%%.*} -ge 11 && \
3046             check_cflags -falign-stack=maintain-16-byte || \
3047             disable aligned_stack
3048     fi
3049 elif enabled ccc; then
3050     # disable some annoying warnings
3051     add_cflags -msg_disable cvtu32to64
3052     add_cflags -msg_disable embedcomment
3053     add_cflags -msg_disable needconstext
3054     add_cflags -msg_disable nomainieee
3055     add_cflags -msg_disable ptrmismatch1
3056     add_cflags -msg_disable unreachcode
3057 elif enabled gcc; then
3058     check_cflags -fno-tree-vectorize
3059     check_cflags -Werror=implicit-function-declaration
3060     check_cflags -Werror=missing-prototypes
3061 elif enabled llvm_gcc; then
3062     check_cflags -mllvm -stack-alignment=16
3063 elif enabled clang; then
3064     check_cflags -mllvm -stack-alignment=16
3065     check_cflags -Qunused-arguments
3066 elif enabled armcc; then
3067     # 2523: use of inline assembler is deprecated
3068     add_cflags -W${armcc_opt},--diag_suppress=2523
3069     add_cflags -W${armcc_opt},--diag_suppress=1207
3070     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3071     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3072     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3073     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3074 elif enabled tms470; then
3075     add_cflags -pds=824 -pds=837
3076 elif enabled pathscale; then
3077     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3078 fi
3079
3080 enabled_any $THREADS_LIST      && enable threads
3081
3082 check_deps $CONFIG_LIST       \
3083            $CONFIG_EXTRA      \
3084            $HAVE_LIST         \
3085            $DECODER_LIST      \
3086            $ENCODER_LIST      \
3087            $HWACCEL_LIST      \
3088            $PARSER_LIST       \
3089            $BSF_LIST          \
3090            $DEMUXER_LIST      \
3091            $MUXER_LIST        \
3092            $FILTER_LIST       \
3093            $INDEV_LIST        \
3094            $OUTDEV_LIST       \
3095            $PROTOCOL_LIST     \
3096            $ACODEC_TESTS      \
3097            $VCODEC_TESTS      \
3098            $LAVF_TESTS        \
3099            $LAVFI_TESTS       \
3100            $SEEK_TESTS        \
3101
3102 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3103
3104 ! enabled_any memalign posix_memalign malloc_aligned &&
3105     enabled_any $need_memalign && enable memalign_hack
3106
3107 echo "install prefix            $prefix"
3108 echo "source path               $source_path"
3109 echo "C compiler                $cc"
3110 echo "ARCH                      $arch ($cpu)"
3111 if test "$build_suffix" != ""; then
3112     echo "build suffix              $build_suffix"
3113 fi
3114 if test "$extra_version" != ""; then
3115     echo "version string suffix     $extra_version"
3116 fi
3117 echo "big-endian                ${bigendian-no}"
3118 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3119 if enabled x86; then
3120     echo "${yasmexe}                      ${yasm-no}"
3121     echo "MMX enabled               ${mmx-no}"
3122     echo "MMX2 enabled              ${mmx2-no}"
3123     echo "3DNow! enabled            ${amd3dnow-no}"
3124     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3125     echo "SSE enabled               ${sse-no}"
3126     echo "SSSE3 enabled             ${ssse3-no}"
3127     echo "AVX enabled               ${avx-no}"
3128     echo "CMOV enabled              ${cmov-no}"
3129     echo "CMOV is fast              ${fast_cmov-no}"
3130     echo "EBX available             ${ebx_available-no}"
3131     echo "EBP available             ${ebp_available-no}"
3132 fi
3133 if enabled arm; then
3134     echo "ARMv5TE enabled           ${armv5te-no}"
3135     echo "ARMv6 enabled             ${armv6-no}"
3136     echo "ARMv6T2 enabled           ${armv6t2-no}"
3137     echo "ARM VFP enabled           ${armvfp-no}"
3138     echo "IWMMXT enabled            ${iwmmxt-no}"
3139     echo "NEON enabled              ${neon-no}"
3140 fi
3141 if enabled mips; then
3142     echo "MMI enabled               ${mmi-no}"
3143 fi
3144 if enabled ppc; then
3145     echo "AltiVec enabled           ${altivec-no}"
3146     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3147     echo "dcbzl available           ${dcbzl-no}"
3148 fi
3149 if enabled sparc; then
3150     echo "VIS enabled               ${vis-no}"
3151 fi
3152 echo "debug symbols             ${debug-no}"
3153 echo "optimize for size         ${small-no}"
3154 echo "optimizations             ${optimizations-no}"
3155 echo "static                    ${static-no}"
3156 echo "shared                    ${shared-no}"
3157 echo "postprocessing support    ${postproc-no}"
3158 echo "new filter support        ${avfilter-no}"
3159 echo "network support           ${network-no}"
3160 echo "threading support         ${thread_type-no}"
3161 echo "SDL support               ${sdl-no}"
3162 echo "Sun medialib support      ${mlib-no}"
3163 echo "libdxva2 enabled          ${dxva2-no}"
3164 echo "libva enabled             ${vaapi-no}"
3165 echo "libvdpau enabled          ${vdpau-no}"
3166 echo "AVISynth enabled          ${avisynth-no}"
3167 echo "frei0r enabled            ${frei0r-no}"
3168 echo "libcdio support           ${libcdio-no}"
3169 echo "libdc1394 support         ${libdc1394-no}"
3170 echo "libdirac enabled          ${libdirac-no}"
3171 echo "libfaac enabled           ${libfaac-no}"
3172 echo "libgsm enabled            ${libgsm-no}"
3173 echo "libmp3lame enabled        ${libmp3lame-no}"
3174 echo "libnut enabled            ${libnut-no}"
3175 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3176 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3177 echo "libopencv support         ${libopencv-no}"
3178 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3179 echo "librtmp enabled           ${librtmp-no}"
3180 echo "libschroedinger enabled   ${libschroedinger-no}"
3181 echo "libspeex enabled          ${libspeex-no}"
3182 echo "libtheora enabled         ${libtheora-no}"
3183 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3184 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3185 echo "libvorbis enabled         ${libvorbis-no}"
3186 echo "libvpx enabled            ${libvpx-no}"
3187 echo "libx264 enabled           ${libx264-no}"
3188 echo "libxavs enabled           ${libxavs-no}"
3189 echo "libxvid enabled           ${libxvid-no}"
3190 echo "zlib enabled              ${zlib-no}"
3191 echo "bzlib enabled             ${bzlib-no}"
3192 echo
3193
3194 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3195     echo "Enabled ${type}s:"
3196     eval list=\$$(toupper $type)_LIST
3197     print_enabled '_*' $list | sort | pr -r -3 -t
3198     echo
3199 done
3200
3201 license="LGPL version 2.1 or later"
3202 if enabled nonfree; then
3203     license="nonfree and unredistributable"
3204 elif enabled gplv3; then
3205     license="GPL version 3 or later"
3206 elif enabled lgplv3; then
3207     license="LGPL version 3 or later"
3208 elif enabled gpl; then
3209     license="GPL version 2 or later"
3210 fi
3211
3212 echo "License: $license"
3213
3214 echo "Creating config.mak and config.h..."
3215
3216 test -e Makefile || $ln_s "$source_path/Makefile" .
3217
3218 config_files="$TMPH config.mak"
3219
3220 cat > config.mak <<EOF
3221 # Automatically generated by configure - do not modify!
3222 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3223 prefix=$prefix
3224 LIBDIR=\$(DESTDIR)$libdir
3225 SHLIBDIR=\$(DESTDIR)$shlibdir
3226 INCDIR=\$(DESTDIR)$incdir
3227 BINDIR=\$(DESTDIR)$bindir
3228 DATADIR=\$(DESTDIR)$datadir
3229 MANDIR=\$(DESTDIR)$mandir
3230 SRC_PATH=$source_path
3231 CC_IDENT=$cc_ident
3232 ARCH=$arch
3233 CC=$cc
3234 AS=$as
3235 LD=$ld
3236 DEPCC=$dep_cc
3237 YASM=$yasmexe
3238 YASMDEP=$yasmexe
3239 AR=$ar
3240 RANLIB=$ranlib
3241 LN_S=$ln_s
3242 CPPFLAGS=$CPPFLAGS
3243 CFLAGS=$CFLAGS
3244 ASFLAGS=$ASFLAGS
3245 AS_O=$CC_O
3246 CC_O=$CC_O
3247 DLLTOOL=$dlltool
3248 LDFLAGS=$LDFLAGS
3249 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3250 SHFLAGS=$SHFLAGS
3251 YASMFLAGS=$YASMFLAGS
3252 BUILDSUF=$build_suffix
3253 FULLNAME=$FULLNAME
3254 LIBPREF=$LIBPREF
3255 LIBSUF=$LIBSUF
3256 LIBNAME=$LIBNAME
3257 SLIBPREF=$SLIBPREF
3258 SLIBSUF=$SLIBSUF
3259 EXESUF=$EXESUF
3260 EXTRA_VERSION=$extra_version
3261 DEPFLAGS=$DEPFLAGS
3262 CCDEP=$CCDEP
3263 ASDEP=$ASDEP
3264 CC_DEPFLAGS=$CC_DEPFLAGS
3265 AS_DEPFLAGS=$AS_DEPFLAGS
3266 HOSTCC=$host_cc
3267 HOSTCFLAGS=$host_cflags
3268 HOSTEXESUF=$HOSTEXESUF
3269 HOSTLDFLAGS=$host_ldflags
3270 HOSTLIBS=$host_libs
3271 TARGET_EXEC=$target_exec
3272 TARGET_PATH=$target_path
3273 SDL_LIBS=$sdl_libs
3274 SDL_CFLAGS=$sdl_cflags
3275 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3276 EXTRALIBS=$extralibs
3277 INSTALL=install
3278 LIBTARGET=${LIBTARGET}
3279 SLIBNAME=${SLIBNAME}
3280 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3281 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3282 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3283 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3284 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3285 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3286 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3287 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3288 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3289 EOF
3290
3291 get_version(){
3292     name=$1
3293     file=$source_path/$2
3294     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3295     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3296     lcname=$(tolower $name)
3297     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3298     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3299 }
3300
3301 get_version LIBSWSCALE  libswscale/swscale.h
3302 get_version LIBPOSTPROC libpostproc/postprocess.h
3303 get_version LIBAVCODEC  libavcodec/version.h
3304 get_version LIBAVDEVICE libavdevice/avdevice.h
3305 get_version LIBAVFORMAT libavformat/version.h
3306 get_version LIBAVUTIL   libavutil/avutil.h
3307 get_version LIBAVFILTER libavfilter/avfilter.h
3308
3309 cat > $TMPH <<EOF
3310 /* Automatically generated by configure - do not modify! */
3311 #ifndef LIBAV_CONFIG_H
3312 #define LIBAV_CONFIG_H
3313 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3314 #define LIBAV_LICENSE "$(c_escape $license)"
3315 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3316 #define CC_TYPE "$cc_type"
3317 #define CC_VERSION $cc_version
3318 #define restrict $_restrict
3319 #define EXTERN_PREFIX "${extern_prefix}"
3320 #define EXTERN_ASM ${extern_prefix}
3321 #define SLIBSUF "$SLIBSUF"
3322 EOF
3323
3324 test -n "$malloc_prefix" &&
3325     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3326
3327 if enabled small || disabled optimizations; then
3328     echo "#undef  av_always_inline"  >> $TMPH
3329     if enabled small; then
3330         echo "#define av_always_inline inline"  >> $TMPH
3331     else
3332         echo "#define av_always_inline av_unused"  >> $TMPH
3333     fi
3334 fi
3335
3336 if enabled yasm; then
3337     append config_files $TMPASM
3338     printf '' >$TMPASM
3339 fi
3340
3341 print_config ARCH_   "$config_files" $ARCH_LIST
3342 print_config HAVE_   "$config_files" $HAVE_LIST
3343 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3344                                      $CONFIG_EXTRA      \
3345                                      $DECODER_LIST      \
3346                                      $ENCODER_LIST      \
3347                                      $HWACCEL_LIST      \
3348                                      $PARSER_LIST       \
3349                                      $BSF_LIST          \
3350                                      $DEMUXER_LIST      \
3351                                      $MUXER_LIST        \
3352                                      $FILTER_LIST       \
3353                                      $PROTOCOL_LIST     \
3354                                      $INDEV_LIST        \
3355                                      $OUTDEV_LIST       \
3356
3357 cat >>config.mak <<EOF
3358 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3359 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3360 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3361 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3362 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3363 EOF
3364
3365 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3366
3367 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3368 cp_if_changed $TMPH config.h
3369 touch .config
3370
3371 enabled yasm && cp_if_changed $TMPASM config.asm
3372
3373 cat > $TMPH <<EOF
3374 /* Generated by ffconf */
3375 #ifndef AVUTIL_AVCONFIG_H
3376 #define AVUTIL_AVCONFIG_H
3377 EOF
3378
3379 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3380
3381 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3382
3383 cp_if_changed $TMPH libavutil/avconfig.h
3384
3385 test -n "$WARNINGS" && printf "\n$WARNINGS"
3386
3387 # build pkg-config files
3388
3389 pkgconfig_generate(){
3390 name=$1
3391 shortname=${name#lib}${build_suffix}
3392 comment=$2
3393 version=$3
3394 libs=$4
3395 requires=$5
3396 enabled ${name#lib} || return 0
3397 mkdir -p $name
3398 cat <<EOF > $name/$name.pc
3399 prefix=$prefix
3400 exec_prefix=\${prefix}
3401 libdir=$libdir
3402 includedir=$incdir
3403
3404 Name: $name
3405 Description: $comment
3406 Version: $version
3407 Requires: $(enabled shared || echo $requires)
3408 Requires.private: $(enabled shared && echo $requires)
3409 Conflicts:
3410 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3411 Libs.private: $(enabled shared && echo $libs)
3412 Cflags: -I\${includedir}
3413 EOF
3414 cat <<EOF > $name/$name-uninstalled.pc
3415 prefix=
3416 exec_prefix=
3417 libdir=\${pcfiledir}
3418 includedir=${source_path}
3419
3420 Name: $name
3421 Description: $comment
3422 Version: $version
3423 Requires: $requires
3424 Conflicts:
3425 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3426 Cflags: -I\${includedir}
3427 EOF
3428 }
3429
3430 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3431 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3432 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3433 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3434 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3435 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3436 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"