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   --disable-w32threads     disable Win32 threads [auto]
  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-gnutls          enable gnutls [no]
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libcdio         enable audio CD grabbing with libcdio
 170   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 171                            and libraw1394 [no]
 172   --enable-libdirac        enable Dirac support via libdirac [no]
 173   --enable-libfaac         enable FAAC support via libfaac [no]
 174   --enable-libfreetype     enable libfreetype [no]
 175   --enable-libgsm          enable GSM support via libgsm [no]
 176   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 177   --enable-libnut          enable NUT (de)muxing via libnut,
 178                            native (de)muxer exists [no]
 179   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 180   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 181   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 182   --enable-libspeex        enable Speex support via libspeex [no]
 183   --enable-libtheora       enable Theora encoding via libtheora [no]
 184   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 185   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 186   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 187                            native implementation exists [no]
 188   --enable-libvpx          enable VP8 support via libvpx [no]
 189   --enable-libx264         enable H.264 encoding via x264 [no]
 190   --enable-libxavs         enable AVS encoding via xavs [no]
 191   --enable-libxvid         enable Xvid encoding via xvidcore,
 192                            native MPEG-4/Xvid encoder exists [no]
 193   --enable-mlib            enable Sun medialib [no]
 194   --enable-openssl         enable openssl [no]
 195   --enable-zlib            enable zlib [autodetect]
 196
 197 Advanced options (experts only):
 198   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 199   --enable-cross-compile   assume a cross-compiler is used
 200   --sysroot=PATH           root of cross-build tree
 201   --sysinclude=PATH        location of cross-build system headers
 202   --target-os=OS           compiler targets OS [$target_os]
 203   --target-exec=CMD        command to run executables on target
 204   --target-path=DIR        path to view of build directory on target
 205   --nm=NM                  use nm tool
 206   --ar=AR                  use archive tool AR [$ar_default]
 207   --as=AS                  use assembler AS [$as_default]
 208   --cc=CC                  use C compiler CC [$cc_default]
 209   --ld=LD                  use linker LD
 210   --host-cc=HOSTCC         use host C compiler HOSTCC
 211   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 212   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 213   --host-libs=HLIBS        use libs HLIBS when linking for host
 214   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 215   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 216   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 217   --extra-version=STRING   version string suffix []
 218   --build-suffix=SUFFIX    library name suffix []
 219   --arch=ARCH              select architecture [$arch]
 220   --cpu=CPU                select the minimum required CPU (affects
 221                            instruction selection, may crash on older CPUs)
 222   --disable-asm            disable all assembler optimizations
 223   --disable-altivec        disable AltiVec optimizations
 224   --disable-amd3dnow       disable 3DNow! optimizations
 225   --disable-amd3dnowext    disable 3DNow! extended optimizations
 226   --disable-mmx            disable MMX optimizations
 227   --disable-mmx2           disable MMX2 optimizations
 228   --disable-sse            disable SSE optimizations
 229   --disable-ssse3          disable SSSE3 optimizations
 230   --disable-avx            disable AVX optimizations
 231   --disable-armv5te        disable armv5te optimizations
 232   --disable-armv6          disable armv6 optimizations
 233   --disable-armv6t2        disable armv6t2 optimizations
 234   --disable-armvfp         disable ARM VFP optimizations
 235   --disable-iwmmxt         disable iwmmxt optimizations
 236   --disable-mmi            disable MMI optimizations
 237   --disable-neon           disable neon optimizations
 238   --disable-vis            disable VIS optimizations
 239   --disable-yasm           disable use of yasm assembler
 240   --enable-pic             build position-independent code
 241   --malloc-prefix=PFX      prefix malloc and related names with PFX
 242   --enable-sram            allow use of on-chip SRAM
 243   --disable-symver         disable symbol versioning
 244   --optflags               override optimization-related compiler flags
 245
 246 Developer options (useful when working on Libav itself):
 247   --disable-debug          disable debugging symbols
 248   --enable-debug=LEVEL     set the debug level [$debuglevel]
 249   --disable-optimizations  disable compiler optimizations
 250   --enable-extra-warnings  enable more compiler warnings
 251   --samples=PATH           location of test samples for FATE, if not set use
 252                            \$FATE_SAMPLES at make invocation time.
 253
 254 NOTE: Object files are built at the place where configure is launched.
 255 EOF
 256   exit 0
 257 }
 258
 259 quotes='""'
 260
 261 log(){
 262     echo "$@" >> $logfile
 263 }
 264
 265 log_file(){
 266     log BEGIN $1
 267     pr -n -t $1 >> $logfile
 268     log END $1
 269 }
 270
 271 echolog(){
 272     log "$@"
 273     echo "$@"
 274 }
 275
 276 warn(){
 277     log "WARNING: $*"
 278     WARNINGS="${WARNINGS}WARNING: $*\n"
 279 }
 280
 281 die(){
 282     echolog "$@"
 283     cat <<EOF
 284
 285 If you think configure made a mistake, make sure you are using the latest
 286 version from Git.  If the latest version fails, report the problem to the
 287 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 288 EOF
 289     if disabled logging; then
 290         cat <<EOF
 291 Rerun configure with logging enabled (do not use --disable-logging), and
 292 include the log this produces with your report.
 293 EOF
 294     else
 295 cat <<EOF
 296 Include the log file "$logfile" produced by configure as this will help
 297 solving the problem.
 298 EOF
 299     fi
 300     exit 1
 301 }
 302
 303 # Avoid locale weirdness, besides we really just want to translate ASCII.
 304 toupper(){
 305     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 306 }
 307
 308 tolower(){
 309     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 310 }
 311
 312 c_escape(){
 313     echo "$*" | sed 's/["\\]/\\\0/g'
 314 }
 315
 316 sh_quote(){
 317     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 318     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 319     echo "$v"
 320 }
 321
 322 cleanws(){
 323     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 324 }
 325
 326 filter(){
 327     pat=$1
 328     shift
 329     for v; do
 330         eval "case $v in $pat) echo $v ;; esac"
 331     done
 332 }
 333
 334 filter_out(){
 335     pat=$1
 336     shift
 337     for v; do
 338         eval "case $v in $pat) ;; *) echo $v ;; esac"
 339     done
 340 }
 341
 342 map(){
 343     m=$1
 344     shift
 345     for v; do eval $m; done
 346 }
 347
 348 set_all(){
 349     value=$1
 350     shift
 351     for var in $*; do
 352         eval $var=$value
 353     done
 354 }
 355
 356 set_weak(){
 357     value=$1
 358     shift
 359     for var; do
 360         eval : \${$var:=$value}
 361     done
 362 }
 363
 364 set_safe(){
 365     var=$1
 366     shift
 367     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 368 }
 369
 370 get_safe(){
 371     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 372 }
 373
 374 pushvar(){
 375     for var in $*; do
 376         eval level=\${${var}_level:=0}
 377         eval ${var}_${level}="\$$var"
 378         eval ${var}_level=$(($level+1))
 379     done
 380 }
 381
 382 popvar(){
 383     for var in $*; do
 384         eval level=\${${var}_level:-0}
 385         test $level = 0 && continue
 386         eval level=$(($level-1))
 387         eval $var="\${${var}_${level}}"
 388         eval ${var}_level=$level
 389         eval unset ${var}_${level}
 390     done
 391 }
 392
 393 enable(){
 394     set_all yes $*
 395 }
 396
 397 disable(){
 398     set_all no $*
 399 }
 400
 401 enable_weak(){
 402     set_weak yes $*
 403 }
 404
 405 disable_weak(){
 406     set_weak no $*
 407 }
 408
 409 enable_safe(){
 410     for var; do
 411         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 412     done
 413 }
 414
 415 disable_safe(){
 416     for var; do
 417         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 418     done
 419 }
 420
 421 do_enable_deep(){
 422     for var; do
 423         enabled $var && continue
 424         eval sel="\$${var}_select"
 425         eval sgs="\$${var}_suggest"
 426         pushvar var sgs
 427         enable_deep $sel
 428         popvar sgs
 429         enable_deep_weak $sgs
 430         popvar var
 431     done
 432 }
 433
 434 enable_deep(){
 435     do_enable_deep $*
 436     enable $*
 437 }
 438
 439 enable_deep_weak(){
 440     do_enable_deep $*
 441     enable_weak $*
 442 }
 443
 444 enabled(){
 445     test "${1#!}" = "$1" && op== || op=!=
 446     eval test "x\$${1#!}" $op "xyes"
 447 }
 448
 449 disabled(){
 450     test "${1#!}" = "$1" && op== || op=!=
 451     eval test "x\$${1#!}" $op "xno"
 452 }
 453
 454 enabled_all(){
 455     for opt; do
 456         enabled $opt || return 1
 457     done
 458 }
 459
 460 disabled_all(){
 461     for opt; do
 462         disabled $opt || return 1
 463     done
 464 }
 465
 466 enabled_any(){
 467     for opt; do
 468         enabled $opt && return 0
 469     done
 470 }
 471
 472 disabled_any(){
 473     for opt; do
 474         disabled $opt && return 0
 475     done
 476     return 1
 477 }
 478
 479 set_default(){
 480     for opt; do
 481         eval : \${$opt:=\$${opt}_default}
 482     done
 483 }
 484
 485 is_in(){
 486     value=$1
 487     shift
 488     for var in $*; do
 489         [ $var = $value ] && return 0
 490     done
 491     return 1
 492 }
 493
 494 check_deps(){
 495     for cfg; do
 496         cfg="${cfg#!}"
 497         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 498         disabled ${cfg}_checking && continue
 499         enable ${cfg}_checking
 500
 501         eval dep_all="\$${cfg}_deps"
 502         eval dep_any="\$${cfg}_deps_any"
 503         eval dep_sel="\$${cfg}_select"
 504         eval dep_sgs="\$${cfg}_suggest"
 505         eval dep_ifa="\$${cfg}_if"
 506         eval dep_ifn="\$${cfg}_if_any"
 507
 508         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 509         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 510         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 511
 512         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 513         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 514         enabled_all  $dep_all || disable $cfg
 515         enabled_any  $dep_any || disable $cfg
 516         disabled_any $dep_sel && disable $cfg
 517
 518         if enabled $cfg; then
 519             eval dep_extralibs="\$${cfg}_extralibs"
 520             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 521             enable_deep $dep_sel
 522             enable_deep_weak $dep_sgs
 523         fi
 524
 525         disable ${cfg}_checking
 526     done
 527 }
 528
 529 print_config_h(){
 530     enabled $1 && v=1 || v=0
 531     echo "#define $2 $v"
 532 }
 533
 534 print_config_mak(){
 535     enabled $1 && v= || v=!
 536     echo "$v$2=yes"
 537 }
 538
 539 print_config_asm(){
 540     enabled $1 && echo "%define $2"
 541 }
 542
 543 print_config(){
 544     pfx=$1
 545     files=$2
 546     shift 2
 547     for cfg; do
 548         ucname="$(toupper $cfg)"
 549         for f in $files; do
 550             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 551         done
 552     done
 553 }
 554
 555 print_enabled(){
 556     test "$1" = -n && end=" " && shift || end="\n"
 557     suf=$1
 558     shift
 559     for v; do
 560         enabled $v && printf "%s$end" ${v%$suf};
 561     done
 562 }
 563
 564 append(){
 565     var=$1
 566     shift
 567     eval "$var=\"\$$var $*\""
 568 }
 569
 570 prepend(){
 571     var=$1
 572     shift
 573     eval "$var=\"$* \$$var\""
 574 }
 575
 576 add_cppflags(){
 577     append CPPFLAGS $($filter_cppflags "$@")
 578 }
 579
 580 add_cflags(){
 581     append CFLAGS $($filter_cflags "$@")
 582 }
 583
 584 add_asflags(){
 585     append ASFLAGS $($filter_asflags "$@")
 586 }
 587
 588 add_ldflags(){
 589     append LDFLAGS "$@"
 590 }
 591
 592 add_extralibs(){
 593     prepend extralibs "$@"
 594 }
 595
 596 check_cmd(){
 597     log "$@"
 598     "$@" >> $logfile 2>&1
 599 }
 600
 601 check_cc(){
 602     log check_cc "$@"
 603     cat > $TMPC
 604     log_file $TMPC
 605     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 606 }
 607
 608 check_cpp(){
 609     log check_cpp "$@"
 610     cat > $TMPC
 611     log_file $TMPC
 612     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 613 }
 614
 615 check_as(){
 616     log check_as "$@"
 617     cat > $TMPC
 618     log_file $TMPC
 619     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 620 }
 621
 622 check_asm(){
 623     log check_asm "$@"
 624     name="$1"
 625     code="$2"
 626     shift 2
 627     disable $name
 628     check_as "$@" <<EOF && enable $name
 629 void foo(void){ __asm__ volatile($code); }
 630 EOF
 631 }
 632
 633 check_yasm(){
 634     log check_yasm "$@"
 635     echo "$1" > $TMPS
 636     log_file $TMPS
 637     shift 1
 638     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 639 }
 640
 641 check_ld(){
 642     log check_ld "$@"
 643     flags=''
 644     libs=''
 645     for f; do
 646         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 647     done
 648     check_cc $($filter_cflags $flags) || return
 649     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 650 }
 651
 652 check_cppflags(){
 653     log check_cppflags "$@"
 654     set -- $($filter_cppflags "$@")
 655     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 656 int x;
 657 EOF
 658 }
 659
 660 check_cflags(){
 661     log check_cflags "$@"
 662     set -- $($filter_cflags "$@")
 663     check_cc "$@" <<EOF && append CFLAGS "$@"
 664 int x;
 665 EOF
 666 }
 667
 668 test_ldflags(){
 669     log test_ldflags "$@"
 670     check_ld "$@" <<EOF
 671 int main(void){ return 0; }
 672 EOF
 673 }
 674
 675 check_ldflags(){
 676     log check_ldflags "$@"
 677     test_ldflags "$@" && add_ldflags "$@"
 678 }
 679
 680 check_header(){
 681     log check_header "$@"
 682     header=$1
 683     shift
 684     disable_safe $header
 685     check_cpp "$@" <<EOF && enable_safe $header
 686 #include <$header>
 687 int x;
 688 EOF
 689 }
 690
 691 check_func(){
 692     log check_func "$@"
 693     func=$1
 694     shift
 695     disable $func
 696     check_ld "$@" <<EOF && enable $func
 697 extern int $func();
 698 int main(void){ $func(); }
 699 EOF
 700 }
 701
 702 check_mathfunc(){
 703     log check_mathfunc "$@"
 704     func=$1
 705     shift
 706     disable $func
 707     check_ld "$@" <<EOF && enable $func
 708 #include <math.h>
 709 float foo(float f) { return $func(f); }
 710 int main(void){ return 0; }
 711 EOF
 712 }
 713
 714 check_func_headers(){
 715     log check_func_headers "$@"
 716     headers=$1
 717     funcs=$2
 718     shift 2
 719     {
 720         for hdr in $headers; do
 721             echo "#include <$hdr>"
 722         done
 723         for func in $funcs; do
 724             echo "long check_$func(void) { return (long) $func; }"
 725         done
 726         echo "int main(void) { return 0; }"
 727     } | check_ld "$@" && enable $funcs && enable_safe $headers
 728 }
 729
 730 check_cpp_condition(){
 731     log check_cpp_condition "$@"
 732     header=$1
 733     condition=$2
 734     shift 2
 735     check_cpp $($filter_cppflags "$@") <<EOF
 736 #include <$header>
 737 #if !($condition)
 738 #error "unsatisfied condition: $condition"
 739 #endif
 740 EOF
 741 }
 742
 743 check_lib(){
 744     log check_lib "$@"
 745     header="$1"
 746     func="$2"
 747     shift 2
 748     check_header $header && check_func $func "$@" && add_extralibs "$@"
 749 }
 750
 751 check_lib2(){
 752     log check_lib2 "$@"
 753     headers="$1"
 754     funcs="$2"
 755     shift 2
 756     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 757 }
 758
 759 check_pkg_config(){
 760     log check_pkg_config "$@"
 761     pkg="$1"
 762     headers="$2"
 763     funcs="$3"
 764     shift 3
 765     $pkg_config --exists $pkg || return
 766     pkg_cflags=$($pkg_config --cflags $pkg)
 767     pkg_libs=$($pkg_config --libs $pkg)
 768     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 769         set_safe ${pkg}_cflags $pkg_cflags   &&
 770         set_safe ${pkg}_libs   $pkg_libs
 771 }
 772
 773 check_exec(){
 774     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 775 }
 776
 777 check_exec_crash(){
 778     code=$(cat)
 779
 780     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 781     # are safe but may not be available everywhere.  Thus we use
 782     # raise(SIGTERM) instead.  The check is run in a subshell so we
 783     # can redirect the "Terminated" message from the shell.  SIGBUS
 784     # is not defined by standard C so it is used conditionally.
 785
 786     (check_exec "$@") >> $logfile 2>&1 <<EOF
 787 #include <signal.h>
 788 static void sighandler(int sig){
 789     raise(SIGTERM);
 790 }
 791 int main(void){
 792     signal(SIGILL, sighandler);
 793     signal(SIGFPE, sighandler);
 794     signal(SIGSEGV, sighandler);
 795 #ifdef SIGBUS
 796     signal(SIGBUS, sighandler);
 797 #endif
 798     { $code }
 799 }
 800 EOF
 801 }
 802
 803 check_type(){
 804     log check_type "$@"
 805     headers=$1
 806     type=$2
 807     shift 2
 808     disable_safe "$type"
 809     incs=""
 810     for hdr in $headers; do
 811         incs="$incs
 812 #include <$hdr>"
 813     done
 814     check_cc "$@" <<EOF && enable_safe "$type"
 815 $incs
 816 $type v;
 817 EOF
 818 }
 819
 820 check_struct(){
 821     log check_type "$@"
 822     headers=$1
 823     struct=$2
 824     member=$3
 825     shift 3
 826     disable_safe "${struct}_${member}"
 827     incs=""
 828     for hdr in $headers; do
 829         incs="$incs
 830 #include <$hdr>"
 831     done
 832     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 833 $incs
 834 const void *p = &(($struct *)0)->$member;
 835 EOF
 836 }
 837
 838 require(){
 839     name="$1"
 840     header="$2"
 841     func="$3"
 842     shift 3
 843     check_lib $header $func "$@" || die "ERROR: $name not found"
 844 }
 845
 846 require2(){
 847     name="$1"
 848     headers="$2"
 849     func="$3"
 850     shift 3
 851     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 852 }
 853
 854 require_pkg_config(){
 855     pkg="$1"
 856     check_pkg_config "$@" || die "ERROR: $pkg not found"
 857     add_cflags    $(get_safe ${pkg}_cflags)
 858     add_extralibs $(get_safe ${pkg}_libs)
 859 }
 860
 861 check_host_cc(){
 862     log check_host_cc "$@"
 863     cat > $TMPC
 864     log_file $TMPC
 865     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 866 }
 867
 868 check_host_cflags(){
 869     log check_host_cflags "$@"
 870     check_host_cc "$@" <<EOF && append host_cflags "$@"
 871 int x;
 872 EOF
 873 }
 874
 875 apply(){
 876     file=$1
 877     shift
 878     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 879 }
 880
 881 cp_if_changed(){
 882     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 883     mkdir -p "$(dirname $2)"
 884     cp -f "$1" "$2"
 885 }
 886
 887 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 888 # system-dependent things.
 889
 890 COMPONENT_LIST="
 891     bsfs
 892     decoders
 893     demuxers
 894     encoders
 895     filters
 896     hwaccels
 897     indevs
 898     muxers
 899     outdevs
 900     parsers
 901     protocols
 902 "
 903
 904 CONFIG_LIST="
 905     $COMPONENT_LIST
 906     aandct
 907     ac3dsp
 908     avcodec
 909     avdevice
 910     avfilter
 911     avformat
 912     avisynth
 913     bzlib
 914     dct
 915     doc
 916     dwt
 917     dxva2
 918     fastdiv
 919     ffmpeg
 920     avconv
 921     avplay
 922     avprobe
 923     avserver
 924     fft
 925     frei0r
 926     gnutls
 927     golomb
 928     gpl
 929     gray
 930     h264dsp
 931     h264pred
 932     hardcoded_tables
 933     huffman
 934     libcdio
 935     libdc1394
 936     libdirac
 937     libfaac
 938     libfreetype
 939     libgsm
 940     libmp3lame
 941     libnut
 942     libopencore_amrnb
 943     libopencore_amrwb
 944     libopencv
 945     libopenjpeg
 946     libpulse
 947     librtmp
 948     libschroedinger
 949     libspeex
 950     libtheora
 951     libvo_aacenc
 952     libvo_amrwbenc
 953     libvorbis
 954     libvpx
 955     libx264
 956     libxavs
 957     libxvid
 958     lpc
 959     lsp
 960     mdct
 961     memalign_hack
 962     mlib
 963     mpegaudiodsp
 964     network
 965     nonfree
 966     openssl
 967     pic
 968     postproc
 969     rdft
 970     rtpdec
 971     runtime_cpudetect
 972     shared
 973     sinewin
 974     small
 975     sram
 976     static
 977     swscale
 978     swscale_alpha
 979     thumb
 980     vaapi
 981     vdpau
 982     version3
 983     x11grab
 984     zlib
 985 "
 986
 987 THREADS_LIST='
 988     pthreads
 989     w32threads
 990 '
 991
 992 ARCH_LIST='
 993     alpha
 994     arm
 995     avr32
 996     avr32_ap
 997     avr32_uc
 998     bfin
 999     ia64
1000     m68k
1001     mips
1002     mips64
1003     parisc
1004     ppc
1005     ppc64
1006     s390
1007     sh4
1008     sparc
1009     sparc64
1010     tomi
1011     x86
1012     x86_32
1013     x86_64
1014 '
1015
1016 ARCH_EXT_LIST='
1017     altivec
1018     amd3dnow
1019     amd3dnowext
1020     armv5te
1021     armv6
1022     armv6t2
1023     armvfp
1024     avx
1025     iwmmxt
1026     mmi
1027     mmx
1028     mmx2
1029     neon
1030     ppc4xx
1031     sse
1032     ssse3
1033     vfpv3
1034     vis
1035 '
1036
1037 HAVE_LIST_PUB='
1038     bigendian
1039     fast_unaligned
1040 '
1041
1042 HAVE_LIST="
1043     $ARCH_EXT_LIST
1044     $HAVE_LIST_PUB
1045     $THREADS_LIST
1046     aligned_stack
1047     alsa_asoundlib_h
1048     altivec_h
1049     arpa_inet_h
1050     asm_mod_y
1051     attribute_may_alias
1052     attribute_packed
1053     bswap
1054     closesocket
1055     cmov
1056     dcbzl
1057     dev_bktr_ioctl_bt848_h
1058     dev_bktr_ioctl_meteor_h
1059     dev_ic_bt8xx_h
1060     dev_video_meteor_ioctl_meteor_h
1061     dev_video_bktr_ioctl_bt848_h
1062     dlfcn_h
1063     dlopen
1064     dos_paths
1065     ebp_available
1066     ebx_available
1067     exp2
1068     exp2f
1069     fast_64bit
1070     fast_clz
1071     fast_cmov
1072     fcntl
1073     fork
1074     getaddrinfo
1075     gethrtime
1076     GetProcessMemoryInfo
1077     GetProcessTimes
1078     getrusage
1079     gnu_as
1080     struct_rusage_ru_maxrss
1081     ibm_asm
1082     inet_aton
1083     inline_asm
1084     isatty
1085     ldbrx
1086     libdc1394_1
1087     libdc1394_2
1088     llrint
1089     llrintf
1090     local_aligned_16
1091     local_aligned_8
1092     localtime_r
1093     log2
1094     log2f
1095     loongson
1096     lrint
1097     lrintf
1098     lzo1x_999_compress
1099     machine_ioctl_bt848_h
1100     machine_ioctl_meteor_h
1101     malloc_h
1102     MapViewOfFile
1103     memalign
1104     mkstemp
1105     mmap
1106     posix_memalign
1107     round
1108     roundf
1109     sdl
1110     sdl_video_size
1111     setmode
1112     sndio_h
1113     socklen_t
1114     soundcard_h
1115     poll_h
1116     setrlimit
1117     strerror_r
1118     strptime
1119     strtok_r
1120     struct_addrinfo
1121     struct_ipv6_mreq
1122     struct_sockaddr_in6
1123     struct_sockaddr_sa_len
1124     struct_sockaddr_storage
1125     symver
1126     symver_gnu_asm
1127     symver_asm_label
1128     sys_mman_h
1129     sys_resource_h
1130     sys_select_h
1131     sys_soundcard_h
1132     sys_videoio_h
1133     threads
1134     trunc
1135     truncf
1136     vfp_args
1137     VirtualAlloc
1138     winsock2_h
1139     xform_asm
1140     xmm_clobbers
1141     yasm
1142 "
1143
1144 # options emitted with CONFIG_ prefix but not available on command line
1145 CONFIG_EXTRA="
1146     avutil
1147     gplv3
1148     lgplv3
1149 "
1150
1151 CMDLINE_SELECT="
1152     $ARCH_EXT_LIST
1153     $CONFIG_LIST
1154     $THREADS_LIST
1155     asm
1156     cross_compile
1157     debug
1158     extra_warnings
1159     logging
1160     optimizations
1161     symver
1162     yasm
1163 "
1164
1165 PATHS_LIST='
1166     bindir
1167     datadir
1168     incdir
1169     libdir
1170     mandir
1171     prefix
1172     shlibdir
1173 '
1174
1175 CMDLINE_SET="
1176     $PATHS_LIST
1177     ar
1178     arch
1179     as
1180     build_suffix
1181     cc
1182     cpu
1183     cross_prefix
1184     dep_cc
1185     extra_version
1186     host_cc
1187     host_cflags
1188     host_ldflags
1189     host_libs
1190     host_os
1191     ld
1192     logfile
1193     malloc_prefix
1194     nm
1195     optflags
1196     pkg_config
1197     samples
1198     sysinclude
1199     sysroot
1200     target_exec
1201     target_os
1202     target_path
1203 "
1204
1205 CMDLINE_APPEND="
1206     extra_cflags
1207 "
1208
1209 # code dependency declarations
1210
1211 # architecture extensions
1212
1213 armv5te_deps="arm"
1214 armv6_deps="arm"
1215 armv6t2_deps="arm"
1216 armvfp_deps="arm"
1217 iwmmxt_deps="arm"
1218 neon_deps="arm"
1219 vfpv3_deps="armvfp"
1220
1221 mmi_deps="mips"
1222
1223 altivec_deps="ppc"
1224 ppc4xx_deps="ppc"
1225
1226 vis_deps="sparc"
1227
1228 x86_64_suggest="cmov fast_cmov"
1229 amd3dnow_deps="mmx"
1230 amd3dnowext_deps="amd3dnow"
1231 mmx_deps="x86"
1232 mmx2_deps="mmx"
1233 sse_deps="mmx"
1234 ssse3_deps="sse"
1235 avx_deps="ssse3"
1236
1237 aligned_stack_if_any="ppc x86"
1238 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1239 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1240 fast_unaligned_if_any="armv6 ppc x86"
1241
1242 need_memalign="altivec neon sse"
1243 inline_asm_deps="!tms470"
1244
1245 symver_if_any="symver_asm_label symver_gnu_asm"
1246
1247 # subsystems
1248 dct_select="rdft"
1249 mdct_select="fft"
1250 rdft_select="fft"
1251 mpegaudiodsp_select="dct"
1252
1253 # decoders / encoders / hardware accelerators
1254 aac_decoder_select="mdct sinewin"
1255 aac_encoder_select="mdct sinewin"
1256 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1257 ac3_decoder_select="mdct ac3dsp ac3_parser"
1258 ac3_encoder_select="mdct ac3dsp"
1259 ac3_fixed_encoder_select="mdct ac3dsp"
1260 alac_encoder_select="lpc"
1261 amrnb_decoder_select="lsp"
1262 amrwb_decoder_select="lsp"
1263 atrac1_decoder_select="mdct sinewin"
1264 atrac3_decoder_select="mdct"
1265 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1266 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1267 cavs_decoder_select="golomb"
1268 cook_decoder_select="mdct sinewin"
1269 cscd_decoder_suggest="zlib"
1270 dca_decoder_select="mdct"
1271 dnxhd_encoder_select="aandct"
1272 dxa_decoder_select="zlib"
1273 eac3_decoder_select="ac3_decoder"
1274 eac3_encoder_select="mdct ac3dsp"
1275 eamad_decoder_select="aandct"
1276 eatgq_decoder_select="aandct"
1277 eatqi_decoder_select="aandct"
1278 ffv1_decoder_select="golomb"
1279 flac_decoder_select="golomb"
1280 flac_encoder_select="golomb lpc"
1281 flashsv_decoder_select="zlib"
1282 flashsv_encoder_select="zlib"
1283 flashsv2_decoder_select="zlib"
1284 flv_decoder_select="h263_decoder"
1285 flv_encoder_select="h263_encoder"
1286 fraps_decoder_select="huffman"
1287 h261_encoder_select="aandct"
1288 h263_decoder_select="h263_parser"
1289 h263_encoder_select="aandct"
1290 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1291 h263i_decoder_select="h263_decoder"
1292 h263p_encoder_select="h263_encoder"
1293 h264_decoder_select="golomb h264dsp h264pred"
1294 h264_dxva2_hwaccel_deps="dxva2api_h"
1295 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1296 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1297 h264_vdpau_decoder_select="vdpau h264_decoder"
1298 imc_decoder_select="fft mdct sinewin"
1299 jpegls_decoder_select="golomb"
1300 jpegls_encoder_select="golomb"
1301 ljpeg_encoder_select="aandct"
1302 loco_decoder_select="golomb"
1303 mjpeg_encoder_select="aandct"
1304 mlp_decoder_select="mlp_parser"
1305 mp1_decoder_select="mpegaudiodsp"
1306 mp2_decoder_select="mpegaudiodsp"
1307 mp3adu_decoder_select="mpegaudiodsp"
1308 mp3_decoder_select="mpegaudiodsp"
1309 mp3on4_decoder_select="mpegaudiodsp"
1310 mp1float_decoder_select="mpegaudiodsp"
1311 mp2float_decoder_select="mpegaudiodsp"
1312 mp3adufloat_decoder_select="mpegaudiodsp"
1313 mp3float_decoder_select="mpegaudiodsp"
1314 mp3on4float_decoder_select="mpegaudiodsp"
1315 mpeg1video_encoder_select="aandct"
1316 mpeg2video_encoder_select="aandct"
1317 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1318 mpeg4_encoder_select="h263_encoder"
1319 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1320 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1321 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1322 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1323 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1324 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1325 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1326 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1327 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1328 msmpeg4v1_decoder_select="h263_decoder"
1329 msmpeg4v1_encoder_select="h263_encoder"
1330 msmpeg4v2_decoder_select="h263_decoder"
1331 msmpeg4v2_encoder_select="h263_encoder"
1332 msmpeg4v3_decoder_select="h263_decoder"
1333 msmpeg4v3_encoder_select="h263_encoder"
1334 nellymoser_decoder_select="mdct sinewin"
1335 nellymoser_encoder_select="mdct sinewin"
1336 png_decoder_select="zlib"
1337 png_encoder_select="zlib"
1338 qcelp_decoder_select="lsp"
1339 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1340 ra_144_encoder_select="lpc"
1341 rv10_decoder_select="h263_decoder"
1342 rv10_encoder_select="h263_encoder"
1343 rv20_decoder_select="h263_decoder"
1344 rv20_encoder_select="h263_encoder"
1345 rv30_decoder_select="golomb h264pred"
1346 rv40_decoder_select="golomb h264pred"
1347 shorten_decoder_select="golomb"
1348 sipr_decoder_select="lsp"
1349 snow_decoder_select="dwt"
1350 snow_encoder_select="aandct dwt"
1351 svq1_encoder_select="aandct"
1352 svq3_decoder_select="golomb h264dsp h264pred"
1353 svq3_decoder_suggest="zlib"
1354 theora_decoder_select="vp3_decoder"
1355 tiff_decoder_suggest="zlib"
1356 tiff_encoder_suggest="zlib"
1357 truehd_decoder_select="mlp_decoder"
1358 tscc_decoder_select="zlib"
1359 twinvq_decoder_select="mdct lsp sinewin"
1360 vc1_decoder_select="h263_decoder"
1361 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1362 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1363 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1364 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1365 vc1image_decoder_select="vc1_decoder"
1366 vorbis_decoder_select="mdct"
1367 vorbis_encoder_select="mdct"
1368 vp6_decoder_select="huffman"
1369 vp6a_decoder_select="vp6_decoder"
1370 vp6f_decoder_select="vp6_decoder"
1371 vp8_decoder_select="h264pred"
1372 wmapro_decoder_select="mdct sinewin"
1373 wmav1_decoder_select="mdct sinewin"
1374 wmav1_encoder_select="mdct sinewin"
1375 wmav2_decoder_select="mdct sinewin"
1376 wmav2_encoder_select="mdct sinewin"
1377 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1378 wmv1_decoder_select="h263_decoder"
1379 wmv1_encoder_select="h263_encoder"
1380 wmv2_decoder_select="h263_decoder"
1381 wmv2_encoder_select="h263_encoder"
1382 wmv3_decoder_select="vc1_decoder"
1383 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1384 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1385 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1386 wmv3image_decoder_select="wmv3_decoder"
1387 zlib_decoder_select="zlib"
1388 zlib_encoder_select="zlib"
1389 zmbv_decoder_select="zlib"
1390 zmbv_encoder_select="zlib"
1391
1392 vaapi_deps="va_va_h"
1393 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1394
1395 # parsers
1396 h264_parser_select="golomb h264dsp h264pred"
1397
1398 # external libraries
1399 libdirac_decoder_deps="libdirac !libschroedinger"
1400 libdirac_encoder_deps="libdirac"
1401 libfaac_encoder_deps="libfaac"
1402 libgsm_decoder_deps="libgsm"
1403 libgsm_encoder_deps="libgsm"
1404 libgsm_ms_decoder_deps="libgsm"
1405 libgsm_ms_encoder_deps="libgsm"
1406 libmp3lame_encoder_deps="libmp3lame"
1407 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1408 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1409 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1410 libopenjpeg_decoder_deps="libopenjpeg"
1411 libschroedinger_decoder_deps="libschroedinger"
1412 libschroedinger_encoder_deps="libschroedinger"
1413 libspeex_decoder_deps="libspeex"
1414 libspeex_encoder_deps="libspeex"
1415 libtheora_encoder_deps="libtheora"
1416 libvo_aacenc_encoder_deps="libvo_aacenc"
1417 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1418 libvorbis_encoder_deps="libvorbis"
1419 libvpx_decoder_deps="libvpx"
1420 libvpx_encoder_deps="libvpx"
1421 libx264_encoder_deps="libx264"
1422 libxavs_encoder_deps="libxavs"
1423 libxvid_encoder_deps="libxvid"
1424
1425 # demuxers / muxers
1426 ac3_demuxer_select="ac3_parser"
1427 asf_stream_muxer_select="asf_muxer"
1428 avisynth_demuxer_deps="avisynth"
1429 dirac_demuxer_select="dirac_parser"
1430 eac3_demuxer_select="ac3_parser"
1431 flac_demuxer_select="flac_parser"
1432 ipod_muxer_select="mov_muxer"
1433 libnut_demuxer_deps="libnut"
1434 libnut_muxer_deps="libnut"
1435 matroska_audio_muxer_select="matroska_muxer"
1436 matroska_demuxer_suggest="zlib bzlib"
1437 mov_demuxer_suggest="zlib"
1438 mp3_demuxer_select="mpegaudio_parser"
1439 mp4_muxer_select="mov_muxer"
1440 mpegtsraw_demuxer_select="mpegts_demuxer"
1441 mxf_d10_muxer_select="mxf_muxer"
1442 ogg_demuxer_select="golomb"
1443 psp_muxer_select="mov_muxer"
1444 rtp_demuxer_select="sdp_demuxer"
1445 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1446 rtsp_demuxer_select="http_protocol rtpdec"
1447 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1448 sap_demuxer_select="sdp_demuxer"
1449 sap_muxer_select="rtp_muxer rtp_protocol"
1450 sdp_demuxer_select="rtpdec"
1451 spdif_muxer_select="aac_parser"
1452 tg2_muxer_select="mov_muxer"
1453 tgp_muxer_select="mov_muxer"
1454 w64_demuxer_deps="wav_demuxer"
1455
1456 # indevs / outdevs
1457 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1458 alsa_outdev_deps="alsa_asoundlib_h"
1459 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1460 dv1394_indev_deps="dv1394 dv_demuxer"
1461 fbdev_indev_deps="linux_fb_h"
1462 jack_indev_deps="jack_jack_h"
1463 libcdio_indev_deps="libcdio"
1464 libdc1394_indev_deps="libdc1394"
1465 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1466 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1467 pulse_indev_deps="libpulse"
1468 sndio_indev_deps="sndio_h"
1469 sndio_outdev_deps="sndio_h"
1470 v4l_indev_deps="linux_videodev_h"
1471 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1472 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1473 vfwcap_indev_extralibs="-lavicap32"
1474 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1475 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1476
1477 # protocols
1478 gopher_protocol_deps="network"
1479 http_protocol_deps="network"
1480 http_protocol_select="tcp_protocol"
1481 mmsh_protocol_select="http_protocol"
1482 mmst_protocol_deps="network"
1483 rtmp_protocol_select="tcp_protocol"
1484 rtp_protocol_select="udp_protocol"
1485 tcp_protocol_deps="network"
1486 udp_protocol_deps="network"
1487
1488 # filters
1489 blackframe_filter_deps="gpl"
1490 boxblur_filter_deps="gpl"
1491 cropdetect_filter_deps="gpl"
1492 delogo_filter_deps="gpl"
1493 drawtext_filter_deps="libfreetype"
1494 frei0r_filter_deps="frei0r dlopen strtok_r"
1495 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1496 hqdn3d_filter_deps="gpl"
1497 ocv_filter_deps="libopencv"
1498 scale_filter_deps="swscale"
1499 yadif_filter_deps="gpl"
1500
1501 # libraries
1502 avdevice_deps="avcodec avformat"
1503 avformat_deps="avcodec"
1504 postproc_deps="gpl"
1505
1506 # programs
1507 ffmpeg_deps="avcodec avformat swscale"
1508 ffmpeg_select="buffer_filter"
1509 avconv_deps="avcodec avformat swscale"
1510 avconv_select="buffer_filter"
1511 avplay_deps="avcodec avformat swscale sdl"
1512 avplay_select="rdft"
1513 avprobe_deps="avcodec avformat"
1514 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1515 avserver_extralibs='$ldl'
1516
1517 doc_deps="texi2html"
1518
1519 # tests
1520
1521 test_deps(){
1522     suf1=$1
1523     suf2=$2
1524     shift 2
1525     for v; do
1526         dep=${v%=*}
1527         tests=${v#*=}
1528         for name in ${tests}; do
1529             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1530         done
1531     done
1532 }
1533
1534 mxf_d10_test_deps="avfilter"
1535 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1536
1537 test_deps _encoder _decoder                                             \
1538     adpcm_g726=g726                                                     \
1539     adpcm_ima_qt                                                        \
1540     adpcm_ima_wav                                                       \
1541     adpcm_ms                                                            \
1542     adpcm_swf                                                           \
1543     adpcm_yamaha=adpcm_yam                                              \
1544     alac                                                                \
1545     asv1                                                                \
1546     asv2                                                                \
1547     bmp                                                                 \
1548     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1549     dvvideo="dv dv50"                                                   \
1550     ffv1                                                                \
1551     flac                                                                \
1552     flashsv                                                             \
1553     flv                                                                 \
1554     gif                                                                 \
1555     h261                                                                \
1556     h263="h263 h263p"                                                   \
1557     huffyuv                                                             \
1558     jpegls                                                              \
1559     mjpeg="jpg mjpeg ljpeg"                                             \
1560     mp2                                                                 \
1561     mpeg1video="mpeg mpeg1b"                                            \
1562     mpeg2video="mpeg2 mpeg2thread"                                      \
1563     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1564     msmpeg4v3=msmpeg4                                                   \
1565     msmpeg4v2                                                           \
1566     pbm=pbmpipe                                                         \
1567     pcx                                                                 \
1568     pgm="pgm pgmpipe"                                                   \
1569     png                                                                 \
1570     ppm="ppm ppmpipe"                                                   \
1571     rawvideo="rgb yuv"                                                  \
1572     roq                                                                 \
1573     rv10                                                                \
1574     rv20                                                                \
1575     sgi                                                                 \
1576     snow="snow snowll"                                                  \
1577     svq1                                                                \
1578     targa=tga                                                           \
1579     tiff                                                                \
1580     wmav1                                                               \
1581     wmav2                                                               \
1582     wmv1                                                                \
1583     wmv2                                                                \
1584
1585 test_deps _muxer _demuxer                                               \
1586     aiff                                                                \
1587     pcm_alaw=alaw                                                       \
1588     asf                                                                 \
1589     au                                                                  \
1590     avi                                                                 \
1591     dv=dv_fmt                                                           \
1592     ffm                                                                 \
1593     flv=flv_fmt                                                         \
1594     gxf                                                                 \
1595     matroska=mkv                                                        \
1596     mmf                                                                 \
1597     mov                                                                 \
1598     pcm_mulaw=mulaw                                                     \
1599     mxf="mxf mxf_d10"                                                   \
1600     nut                                                                 \
1601     ogg                                                                 \
1602     rawvideo=pixfmt                                                     \
1603     rm                                                                  \
1604     swf                                                                 \
1605     mpegts=ts                                                           \
1606     voc                                                                 \
1607     wav                                                                 \
1608     yuv4mpegpipe=yuv4mpeg                                               \
1609
1610 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1611 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1612
1613 # default parameters
1614
1615 logfile="config.log"
1616
1617 # installation paths
1618 prefix_default="/usr/local"
1619 bindir_default='${prefix}/bin'
1620 datadir_default='${prefix}/share/avconv'
1621 incdir_default='${prefix}/include'
1622 libdir_default='${prefix}/lib'
1623 mandir_default='${prefix}/share/man'
1624 shlibdir_default="$libdir_default"
1625
1626 # toolchain
1627 ar_default="ar"
1628 cc_default="gcc"
1629 cc_version=\"unknown\"
1630 host_cc_default="gcc"
1631 ln_s="ln -sf"
1632 nm_default="nm"
1633 objformat="elf"
1634 pkg_config_default=pkg-config
1635 ranlib="ranlib"
1636 yasmexe="yasm"
1637 nogas=":"
1638
1639 nm_opts='-g'
1640
1641 # machine
1642 arch_default=$(uname -m)
1643 cpu="generic"
1644
1645 # OS
1646 target_os_default=$(tolower $(uname -s))
1647 host_os=$target_os_default
1648
1649 # configurable options
1650 enable avcodec
1651 enable avdevice
1652 enable avfilter
1653 enable avformat
1654 enable avutil
1655 enable asm
1656 enable debug
1657 enable doc
1658 enable fastdiv
1659 enable ffmpeg
1660 enable avconv
1661 enable avplay
1662 enable avprobe
1663 enable avserver
1664 enable network
1665 enable optimizations
1666 enable postproc
1667 enable protocols
1668 enable static
1669 enable swscale
1670 enable swscale_alpha
1671
1672 # build settings
1673 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1674 AVSERVERLDFLAGS=-Wl,-E
1675 LIBPREF="lib"
1676 LIBSUF=".a"
1677 FULLNAME='$(NAME)$(BUILDSUF)'
1678 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1679 SLIBPREF="lib"
1680 SLIBSUF=".so"
1681 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1682 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1683 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1684 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1685 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1686 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1687
1688 AS_O='-o $@'
1689 CC_O='-o $@'
1690
1691 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1692 host_libs='-lm'
1693
1694 target_path='$(CURDIR)'
1695
1696 # since the object filename is not given with the -MM flag, the compiler
1697 # is only able to print the basename, and we must add the path ourselves
1698 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1699 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1700
1701 # find source path
1702 if test -f configure; then
1703     source_path=.
1704 else
1705     source_path=$(cd $(dirname "$0"); pwd)
1706     echo "$source_path" | grep -q '[[:blank:]]' &&
1707         die "Out of tree builds are impossible with whitespace in source path."
1708     test -e "$source_path/config.h" &&
1709         die "Out of tree builds are impossible with config.h in source dir."
1710 fi
1711
1712 for v in "$@"; do
1713     r=${v#*=}
1714     l=${v%"$r"}
1715     r=$(sh_quote "$r")
1716     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1717 done
1718
1719 find_things(){
1720     thing=$1
1721     pattern=$2
1722     file=$source_path/$3
1723     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1724 }
1725
1726 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1727 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1728 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1729 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1730 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1731 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1732 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1733 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1734 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1735 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1736 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1737
1738 find_tests(){
1739     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1740 }
1741
1742 ACODEC_TESTS=$(find_tests acodec)
1743 VCODEC_TESTS=$(find_tests vsynth1)
1744 LAVF_TESTS=$(find_tests lavf)
1745 LAVFI_TESTS=$(find_tests lavfi)
1746 SEEK_TESTS=$(find_tests seek seek_)
1747
1748 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1749
1750 for n in $COMPONENT_LIST; do
1751     v=$(toupper ${n%s})_LIST
1752     eval enable \$$v
1753     eval ${n}_if_any="\$$v"
1754 done
1755
1756 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1757
1758 die_unknown(){
1759     echo "Unknown option \"$1\"."
1760     echo "See $0 --help for available options."
1761     exit 1
1762 }
1763
1764 show_list() {
1765     suffix=_$1
1766     shift
1767     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1768     exit 0
1769 }
1770
1771 for opt do
1772     optval="${opt#*=}"
1773     case "$opt" in
1774     --extra-ldflags=*) add_ldflags $optval
1775     ;;
1776     --extra-libs=*) add_extralibs $optval
1777     ;;
1778     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1779     ;;
1780     --enable-debug=*) debuglevel="$optval"
1781     ;;
1782     --disable-everything)
1783     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1784     ;;
1785     --enable-*=*|--disable-*=*)
1786     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1787     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1788     eval list=\$$(toupper $thing)_LIST
1789     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1790     $action $(filter "$name" $list)
1791     ;;
1792     --enable-?*|--disable-?*)
1793     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1794     if is_in $option $COMPONENT_LIST; then
1795         test $action = disable && action=unset
1796         eval $action \$$(toupper ${option%s})_LIST
1797     elif is_in $option $CMDLINE_SELECT; then
1798         $action $option
1799     else
1800         die_unknown $opt
1801     fi
1802     ;;
1803     --list-*)
1804         NAME="${opt#--list-}"
1805         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1806         NAME=${NAME%s}
1807         eval show_list $NAME \$$(toupper $NAME)_LIST
1808     ;;
1809     --help|-h) show_help
1810     ;;
1811     *)
1812     optname="${opt%%=*}"
1813     optname="${optname#--}"
1814     optname=$(echo "$optname" | sed 's/-/_/g')
1815     if is_in $optname $CMDLINE_SET; then
1816         eval $optname='$optval'
1817     elif is_in $optname $CMDLINE_APPEND; then
1818         append $optname "$optval"
1819     else
1820          die_unknown $opt
1821     fi
1822     ;;
1823     esac
1824 done
1825
1826 disabled logging && logfile=/dev/null
1827
1828 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1829 set >> $logfile
1830
1831 test -n "$cross_prefix" && enable cross_compile
1832
1833 if enabled cross_compile; then
1834     test -n "$arch" && test -n "$target_os" ||
1835         die "Must specify target arch and OS when cross-compiling"
1836 fi
1837
1838 set_default arch target_os
1839
1840 ar_default="${cross_prefix}${ar_default}"
1841 cc_default="${cross_prefix}${cc_default}"
1842 nm_default="${cross_prefix}${nm_default}"
1843 pkg_config_default="${cross_prefix}${pkg_config_default}"
1844 ranlib="${cross_prefix}${ranlib}"
1845
1846 sysinclude_default="${sysroot}/usr/include"
1847
1848 set_default cc nm pkg_config sysinclude
1849 enabled cross_compile || host_cc_default=$cc
1850 set_default host_cc
1851
1852 if ! $pkg_config --version >/dev/null 2>&1; then
1853     warn "$pkg_config not found, library detection may fail."
1854     pkg_config=false
1855 fi
1856
1857 exesuf() {
1858     case $1 in
1859         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1860     esac
1861 }
1862
1863 EXESUF=$(exesuf $target_os)
1864 HOSTEXESUF=$(exesuf $host_os)
1865
1866 # set temporary file name
1867 : ${TMPDIR:=$TEMPDIR}
1868 : ${TMPDIR:=$TMP}
1869 : ${TMPDIR:=/tmp}
1870
1871 if ! check_cmd mktemp -u XXXXXX; then
1872     # simple replacement for missing mktemp
1873     # NOT SAFE FOR GENERAL USE
1874     mktemp(){
1875         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1876     }
1877 fi
1878
1879 tmpfile(){
1880     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1881         (set -C; exec > $tmp) 2>/dev/null ||
1882         die "Unable to create temporary file in $TMPDIR."
1883     append TMPFILES $tmp
1884     eval $1=$tmp
1885 }
1886
1887 trap 'rm -f -- $TMPFILES' EXIT
1888
1889 tmpfile TMPC  .c
1890 tmpfile TMPE  $EXESUF
1891 tmpfile TMPH  .h
1892 tmpfile TMPO  .o
1893 tmpfile TMPS  .S
1894 tmpfile TMPV  .ver
1895 tmpfile TMPSH .sh
1896 tmpfile TMPASM .asm
1897
1898 unset -f mktemp
1899
1900 chmod +x $TMPE
1901
1902 # make sure we can execute files in $TMPDIR
1903 cat > $TMPSH 2>> $logfile <<EOF
1904 #! /bin/sh
1905 EOF
1906 chmod +x $TMPSH >> $logfile 2>&1
1907 if ! $TMPSH >> $logfile 2>&1; then
1908     cat <<EOF
1909 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1910 variable to another directory and make sure that it is not mounted noexec.
1911 EOF
1912     die "Sanity test failed."
1913 fi
1914
1915 filter_cflags=echo
1916 filter_cppflags=echo
1917 filter_asflags=echo
1918
1919 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1920     cc_type=llvm_gcc
1921     cc_version=__VERSION__
1922     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1923     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1924     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1925     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1926     speed_cflags='-O3'
1927     size_cflags='-Os'
1928 elif $cc -v 2>&1 | grep -qi ^gcc; then
1929     cc_type=gcc
1930     cc_version=__VERSION__
1931     gcc_version=$($cc --version | head -n1)
1932     gcc_basever=$($cc -dumpversion)
1933     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1934     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1935     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1936     if ! $cc -dumpversion | grep -q '^2\.'; then
1937         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1938         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1939     fi
1940     speed_cflags='-O3'
1941     size_cflags='-Os'
1942 elif $cc --version 2>/dev/null | grep -q Intel; then
1943     cc_type=icc
1944     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1945     cc_ident=$($cc --version | head -n1)
1946     icc_version=$($cc -dumpversion)
1947     CC_DEPFLAGS='-MMD'
1948     AS_DEPFLAGS='-MMD'
1949     speed_cflags='-O3'
1950     size_cflags='-Os'
1951     noopt_cflags='-O1'
1952 elif $cc -v 2>&1 | grep -q xlc; then
1953     cc_type=xlc
1954     cc_version="AV_STRINGIFY(__IBMC__)"
1955     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1956     speed_cflags='-O5'
1957     size_cflags='-O5 -qcompact'
1958 elif $cc -V 2>/dev/null | grep -q Compaq; then
1959     cc_type=ccc
1960     cc_version="AV_STRINGIFY(__DECC_VER)"
1961     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1962     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1963     debuglevel=3
1964     add_ldflags -Wl,-z,now # calls to libots crash without this
1965     speed_cflags='-fast'
1966     size_cflags='-O1'
1967 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1968     test -d "$sysroot" || die "No valid sysroot specified."
1969     cc_type=armcc
1970     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1971     cc_ident=$($cc --vsn | head -n1)
1972     armcc_conf="$PWD/armcc.conf"
1973     $cc --arm_linux_configure                 \
1974         --arm_linux_config_file="$armcc_conf" \
1975         --configure_sysroot="$sysroot"        \
1976         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1977         die "Error creating armcc configuration file."
1978     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1979     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1980     as_default="${cross_prefix}gcc"
1981     CC_DEPFLAGS='-MMD'
1982     AS_DEPFLAGS='-MMD'
1983     speed_cflags='-O3'
1984     size_cflags='-Os'
1985     filter_asflags="filter_out -W${armcc_opt}*"
1986 elif $cc -version 2>/dev/null | grep -q TMS470; then
1987     cc_type=tms470
1988     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1989     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1990     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1991     CC_O='-fr=$(@D)'
1992     as_default="${cross_prefix}gcc"
1993     ld_default="${cross_prefix}gcc"
1994     TMPO=$(basename $TMPC .c).o
1995     append TMPFILES $TMPO
1996     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1997     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1998     AS_DEPFLAGS='-MMD'
1999     speed_cflags='-O3 -mf=5'
2000     size_cflags='-O3 -mf=2'
2001     filter_cflags=tms470_flags
2002     tms470_flags(){
2003         for flag; do
2004             case $flag in
2005                 -march=*|-mcpu=*)
2006                     case "${flag#*=}" in
2007                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2008                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2009                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2010                         armv6*|arm11*)          echo -mv=6   ;;
2011                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2012                                                 echo -mv=5e  ;;
2013                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2014                     esac
2015                     ;;
2016                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2017                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2018                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2019                 -msoft-float)   echo --float_support=vfplib       ;;
2020                 -O[0-3]|-mf=*)  echo $flag                        ;;
2021                 -g)             echo -g -mn                       ;;
2022                 -pds=*)         echo $flag                        ;;
2023             esac
2024         done
2025     }
2026 elif $cc -v 2>&1 | grep -q clang; then
2027     cc_type=clang
2028     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2029         cc_version=__clang_version__ || cc_version=__VERSION__
2030     cc_ident=$($cc --version | head -n1)
2031     CC_DEPFLAGS='-MMD'
2032     AS_DEPFLAGS='-MMD'
2033     speed_cflags='-O3'
2034     size_cflags='-Os'
2035 elif $cc -V 2>&1 | grep -q Sun; then
2036     cc_type=suncc
2037     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2038     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2039     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2040     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2041     add_ldflags -xc99
2042     speed_cflags='-O5'
2043     size_cflags='-O5 -xspace'
2044     filter_cflags=suncc_flags
2045     suncc_flags(){
2046         for flag; do
2047             case $flag in
2048                 -march=*|-mcpu=*)
2049                     case "${flag#*=}" in
2050                         native)                   echo -xtarget=native       ;;
2051                         v9|niagara)               echo -xarch=sparc          ;;
2052                         ultrasparc)               echo -xarch=sparcvis       ;;
2053                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2054                         i586|pentium)             echo -xchip=pentium        ;;
2055                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2056                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2057                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2058                         pentium4*)          echo -xtarget=pentium4           ;;
2059                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2060                         *-sse3)             echo -xarch=sse3                 ;;
2061                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2062                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2063                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2064                         k8|opteron|athlon64|athlon-fx)
2065                                                   echo -xarch=sse2a          ;;
2066                         athlon*)                  echo -xarch=pentium_proa   ;;
2067                     esac
2068                     ;;
2069                 -std=c99)             echo -xc99              ;;
2070                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2071                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2072                 -W*,*)                echo $flag              ;;
2073                 -f*-*|-W*)                                    ;;
2074                 *)                    echo $flag              ;;
2075             esac
2076         done
2077     }
2078 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2079     cc_type=pathscale
2080     cc_version=__PATHSCALE__
2081     cc_ident=$($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'
2087 elif $cc -v 2>&1 | grep -q Open64; then
2088     cc_type=open64
2089     cc_version=__OPEN64__
2090     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2091     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2092     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2093     speed_cflags='-O2'
2094     size_cflags='-Os'
2095     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2096 fi
2097
2098 test -n "$cc_type" && enable $cc_type ||
2099     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2100
2101 : ${as_default:=$cc}
2102 : ${dep_cc_default:=$cc}
2103 : ${ld_default:=$cc}
2104 set_default ar as dep_cc ld
2105
2106 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2107 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2108
2109 add_cflags $extra_cflags
2110 add_asflags $extra_cflags
2111
2112 if test -n "$sysroot"; then
2113     case "$cc_type" in
2114         gcc|llvm_gcc|clang)
2115             add_cppflags --sysroot="$sysroot"
2116             add_ldflags --sysroot="$sysroot"
2117         ;;
2118         tms470)
2119             add_cppflags -I"$sysinclude"
2120             add_ldflags  --sysroot="$sysroot"
2121         ;;
2122     esac
2123 fi
2124
2125 if test "$cpu" = host; then
2126     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2127
2128     case "$cc_type" in
2129         gcc|llvm_gcc)
2130             check_native(){
2131                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2132                 sed -n "/cc1.*$1=/{
2133                             s/.*$1=\\([^ ]*\\).*/\\1/
2134                             p
2135                             q
2136                         }" $TMPE
2137             }
2138             cpu=$(check_native -march || check_native -mcpu)
2139         ;;
2140     esac
2141
2142     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2143 fi
2144
2145 # Deal with common $arch aliases
2146 case "$arch" in
2147     arm*)
2148         arch="arm"
2149     ;;
2150     mips|mipsel|IP*)
2151         arch="mips"
2152     ;;
2153     mips64*)
2154         arch="mips"
2155         subarch="mips64"
2156     ;;
2157     parisc|hppa)
2158         arch="parisc"
2159     ;;
2160     parisc64|hppa64)
2161         arch="parisc"
2162         subarch="parisc64"
2163     ;;
2164     "Power Macintosh"|ppc|powerpc)
2165         arch="ppc"
2166     ;;
2167     ppc64|powerpc64)
2168         arch="ppc"
2169         subarch="ppc64"
2170     ;;
2171     s390|s390x)
2172         arch="s390"
2173     ;;
2174     sh4|sh)
2175         arch="sh4"
2176     ;;
2177     sun4u|sparc64)
2178         arch="sparc"
2179         subarch="sparc64"
2180     ;;
2181     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2182         arch="x86"
2183     ;;
2184 esac
2185
2186 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2187 enable $arch
2188
2189 # Add processor-specific flags
2190 if test "$cpu" = generic; then
2191     : do nothing
2192 elif enabled ppc; then
2193
2194     case $(tolower $cpu) in
2195         601|ppc601|powerpc601)
2196             cpuflags="-mcpu=601"
2197             disable altivec
2198         ;;
2199         603*|ppc603*|powerpc603*)
2200             cpuflags="-mcpu=603"
2201             disable altivec
2202         ;;
2203         604*|ppc604*|powerpc604*)
2204             cpuflags="-mcpu=604"
2205             disable altivec
2206         ;;
2207         g3|75*|ppc75*|powerpc75*)
2208             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2209             disable altivec
2210         ;;
2211         g4|745*|ppc745*|powerpc745*)
2212             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2213         ;;
2214         74*|ppc74*|powerpc74*)
2215             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2216         ;;
2217         g5|970|ppc970|powerpc970|power4*)
2218             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2219         ;;
2220         cell)
2221             cpuflags="-mcpu=cell"
2222             enable ldbrx
2223         ;;
2224         e500v2)
2225             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2226             disable altivec
2227         ;;
2228         e500)
2229             cpuflags="-mcpu=8540 -mhard-float"
2230             disable altivec
2231         ;;
2232     esac
2233
2234 elif enabled x86; then
2235
2236     case $cpu in
2237         i[345]86|pentium)
2238             cpuflags="-march=$cpu"
2239             disable mmx
2240         ;;
2241         # targets that do NOT support conditional mov (cmov)
2242         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2243             cpuflags="-march=$cpu"
2244             disable cmov
2245         ;;
2246         # targets that do support conditional mov (cmov)
2247         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2248             cpuflags="-march=$cpu"
2249             enable cmov
2250             enable fast_cmov
2251         ;;
2252         # targets that do support conditional mov but on which it's slow
2253         pentium4|pentium4m|prescott|nocona)
2254             cpuflags="-march=$cpu"
2255             enable cmov
2256             disable fast_cmov
2257         ;;
2258     esac
2259
2260 elif enabled sparc; then
2261
2262     case $cpu in
2263         niagara)
2264             cpuflags="-mcpu=$cpu"
2265             disable vis
2266         ;;
2267         sparc64)
2268             cpuflags="-mcpu=v9"
2269         ;;
2270     esac
2271
2272 elif enabled arm; then
2273
2274     case $cpu in
2275         armv*)
2276             cpuflags="-march=$cpu"
2277             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2278         ;;
2279         *)
2280             cpuflags="-mcpu=$cpu"
2281             case $cpu in
2282                 cortex-a*)                               subarch=armv7a  ;;
2283                 cortex-r*)                               subarch=armv7r  ;;
2284                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2285                 arm11*)                                  subarch=armv6   ;;
2286                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2287                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2288             esac
2289         ;;
2290     esac
2291
2292 elif enabled alpha; then
2293
2294     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2295
2296 elif enabled bfin; then
2297
2298     cpuflags="-mcpu=$cpu"
2299
2300 elif enabled mips; then
2301
2302     cpuflags="-march=$cpu"
2303
2304 elif enabled avr32; then
2305
2306     case $cpu in
2307         ap7[02]0[0-2])
2308             subarch="avr32_ap"
2309             cpuflags="-mpart=$cpu"
2310         ;;
2311         ap)
2312             subarch="avr32_ap"
2313             cpuflags="-march=$cpu"
2314         ;;
2315         uc3[ab]*)
2316             subarch="avr32_uc"
2317             cpuflags="-mcpu=$cpu"
2318         ;;
2319         uc)
2320             subarch="avr32_uc"
2321             cpuflags="-march=$cpu"
2322         ;;
2323     esac
2324
2325 fi
2326
2327 add_cflags $cpuflags
2328 add_asflags $cpuflags
2329
2330 # compiler sanity check
2331 check_exec <<EOF
2332 int main(void){ return 0; }
2333 EOF
2334 if test "$?" != 0; then
2335     echo "$cc is unable to create an executable file."
2336     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2337         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2338         echo "Only do this if you know what cross compiling means."
2339     fi
2340     die "C compiler test failed."
2341 fi
2342
2343 add_cppflags -D_ISOC99_SOURCE
2344 check_cflags -std=c99
2345 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2346 #include <stdlib.h>
2347 EOF
2348 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2349 #include <stdlib.h>
2350 EOF
2351
2352 check_host_cflags -std=c99
2353 check_host_cflags -Wall
2354
2355 case "$arch" in
2356     alpha|ia64|mips|parisc|sparc)
2357         spic=$shared
2358     ;;
2359     x86)
2360         subarch="x86_32"
2361         check_cc <<EOF && subarch="x86_64"
2362         int test[(int)sizeof(char*) - 7];
2363 EOF
2364         if test "$subarch" = "x86_64"; then
2365             spic=$shared
2366         fi
2367     ;;
2368 esac
2369
2370 enable $subarch
2371 enabled spic && enable pic
2372
2373 # OS specific
2374 case $target_os in
2375     haiku)
2376         prefix_default="/boot/common"
2377         network_extralibs="-lnetwork"
2378         host_libs=
2379         ;;
2380     sunos)
2381         AVSERVERLDFLAGS=""
2382         SHFLAGS='-shared -Wl,-h,$$(@F)'
2383         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2384         network_extralibs="-lsocket -lnsl"
2385         add_cppflags -D__EXTENSIONS__
2386         # When using suncc to build, the Solaris linker will mark
2387         # an executable with each instruction set encountered by
2388         # the Solaris assembler.  As our libraries contain their own
2389         # guards for processor-specific code, instead suppress
2390         # generation of the HWCAPS ELF section on Solaris x86 only.
2391         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2392         nm_opts='-P -g'
2393         ;;
2394     netbsd)
2395         disable symver
2396         oss_indev_extralibs="-lossaudio"
2397         oss_outdev_extralibs="-lossaudio"
2398         ;;
2399     openbsd)
2400         enable malloc_aligned
2401         # On OpenBSD 4.5. the compiler does not use PIC unless
2402         # explicitly using -fPIC. Libav builds fine without PIC,
2403         # however the generated executable will not do anything
2404         # (simply quits with exit-code 1, no crash, no output).
2405         # Thus explicitly enable PIC here.
2406         enable pic
2407         disable symver
2408         SHFLAGS='-shared'
2409         oss_indev_extralibs="-lossaudio"
2410         oss_outdev_extralibs="-lossaudio"
2411         ;;
2412     dragonfly)
2413         enable malloc_aligned
2414         disable symver
2415         ;;
2416     freebsd)
2417         enable malloc_aligned
2418         ;;
2419     bsd/os)
2420         add_extralibs -lpoll -lgnugetopt
2421         ;;
2422     darwin)
2423         enable malloc_aligned
2424         gas="gas-preprocessor.pl $cc"
2425         enabled ppc && add_asflags -force_cpusubtype_ALL
2426         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2427         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2428         add_ldflags -Wl,-dynamic,-search_paths_first
2429         SLIBSUF=".dylib"
2430         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2431         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2432         AVSERVERLDFLAGS=-Wl,-bind_at_load
2433         objformat="macho"
2434         enabled x86_64 && objformat="macho64"
2435         enabled_any pic shared ||
2436             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2437         ;;
2438     mingw32*)
2439         if test $target_os = "mingw32ce"; then
2440             disable network
2441         else
2442             target_os=mingw32
2443             enable_weak w32threads
2444         fi
2445         LIBTARGET=i386
2446         if enabled x86_64; then
2447             enable malloc_aligned
2448             LIBTARGET="i386:x86-64"
2449         elif enabled arm; then
2450             LIBTARGET=arm-wince
2451         fi
2452         shlibdir_default="$bindir_default"
2453         SLIBPREF=""
2454         SLIBSUF=".dll"
2455         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2456         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2457         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2458         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2459         SLIB_INSTALL_LINKS=
2460         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2461         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2462         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'
2463         objformat="win32"
2464         dlltool="${cross_prefix}dlltool"
2465         enable dos_paths
2466         check_cflags -fno-common
2467         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2468                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2469                 die "ERROR: MinGW runtime version must be >= 3.15."
2470         add_cppflags -U__STRICT_ANSI__
2471         ;;
2472     cygwin*)
2473         target_os=cygwin
2474         shlibdir_default="$bindir_default"
2475         SLIBPREF="cyg"
2476         SLIBSUF=".dll"
2477         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2478         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2479         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2480         objformat="win32"
2481         enable dos_paths
2482         check_cflags -fno-common
2483         add_cppflags -U__STRICT_ANSI__
2484         ;;
2485     *-dos|freedos|opendos)
2486         network_extralibs="-lsocket"
2487         objformat="coff"
2488         enable dos_paths
2489         add_cppflags -U__STRICT_ANSI__
2490         ;;
2491     linux)
2492         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2493         enable dv1394
2494         ;;
2495     irix*)
2496         target_os=irix
2497         ranlib="echo ignoring ranlib"
2498         ;;
2499     os/2*)
2500         ln_s="cp -f"
2501         objformat="aout"
2502         add_cppflags -D_GNU_SOURCE
2503         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2504         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2505         AVSERVERLDFLAGS=""
2506         LIBSUF="_s.a"
2507         SLIBPREF=""
2508         SLIBSUF=".dll"
2509         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2510         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2511         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2512           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2513           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2514           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2515           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2516           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2517         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2518           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2519         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2520         enable dos_paths
2521         ;;
2522     gnu/kfreebsd)
2523         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2524         ;;
2525     gnu)
2526         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2527         ;;
2528     qnx)
2529         add_cppflags -D_QNX_SOURCE
2530         network_extralibs="-lsocket"
2531         ;;
2532     symbian)
2533         SLIBSUF=".dll"
2534         enable dos_paths
2535         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2536         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2537         add_ldflags -Wl,--target1-abs,--no-undefined \
2538                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2539                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2540         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2541                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2542                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2543         ;;
2544     none)
2545         ;;
2546     *)
2547         die "Unknown OS '$target_os'."
2548         ;;
2549 esac
2550
2551 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2552
2553 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2554
2555 set_default $PATHS_LIST
2556
2557 # we need to build at least one lib type
2558 if ! enabled_any static shared; then
2559     cat <<EOF
2560 At least one library type must be built.
2561 Specify --enable-static to build the static libraries or --enable-shared to
2562 build the shared libraries as well. To only build the shared libraries specify
2563 --disable-static in addition to --enable-shared.
2564 EOF
2565     exit 1;
2566 fi
2567
2568 die_license_disabled() {
2569     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2570 }
2571
2572 die_license_disabled gpl libcdio
2573 die_license_disabled gpl libx264
2574 die_license_disabled gpl libxavs
2575 die_license_disabled gpl libxvid
2576 die_license_disabled gpl x11grab
2577
2578 die_license_disabled nonfree libfaac
2579 die_license_disabled nonfree openssl
2580
2581 die_license_disabled version3 libopencore_amrnb
2582 die_license_disabled version3 libopencore_amrwb
2583 die_license_disabled version3 libvo_aacenc
2584 die_license_disabled version3 libvo_amrwbenc
2585
2586 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2587
2588 disabled optimizations || check_cflags -fomit-frame-pointer
2589
2590 enable_pic() {
2591     enable pic
2592     add_cppflags -DPIC
2593     add_cflags   -fPIC
2594     add_asflags  -fPIC
2595 }
2596
2597 enabled pic && enable_pic
2598
2599 check_cc <<EOF || die "Symbol mangling check failed."
2600 int ff_extern;
2601 EOF
2602 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2603 extern_prefix=${sym%%ff_extern*}
2604
2605 check_cc <<EOF && enable inline_asm
2606 void foo(void) { __asm__ volatile ("" ::); }
2607 EOF
2608
2609 _restrict=
2610 for restrict_keyword in restrict __restrict__ __restrict; do
2611     check_cc <<EOF && _restrict=$restrict_keyword && break
2612 void foo(char * $restrict_keyword p);
2613 EOF
2614 done
2615
2616 check_cc <<EOF && enable attribute_packed
2617 struct { int x; } __attribute__((packed)) x;
2618 EOF
2619
2620 check_cc <<EOF && enable attribute_may_alias
2621 union { int x; } __attribute__((may_alias)) x;
2622 EOF
2623
2624 check_cc <<EOF || die "endian test failed"
2625 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2626 EOF
2627 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2628
2629 if enabled alpha; then
2630
2631     check_cflags -mieee
2632
2633 elif enabled arm; then
2634
2635     enabled thumb && check_cflags -mthumb || check_cflags -marm
2636     nogas=die
2637
2638     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2639         enable vfp_args
2640     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2641         case "${cross_prefix:-$cc}" in
2642             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2643             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2644 __asm__ (".eabi_attribute 28, 1");
2645 int main(void) { return 0; }
2646 EOF
2647         esac
2648         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2649     fi
2650
2651     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2652     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2653     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2654     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2655     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2656     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2657     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2658
2659     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2660
2661     enabled_all armv6t2 shared !pic && enable_pic
2662
2663 elif enabled mips; then
2664
2665     check_asm loongson '"dmult.g $1, $2, $3"'
2666     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2667
2668 elif enabled ppc; then
2669
2670     enable local_aligned_8 local_aligned_16
2671
2672     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2673     check_asm ibm_asm   '"add 0, 0, 0"'
2674     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2675     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2676
2677     # AltiVec flags: The FSF version of GCC differs from the Apple version
2678     if enabled altivec; then
2679         nogas=warn
2680         check_cflags -maltivec -mabi=altivec &&
2681         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2682         check_cflags -faltivec
2683
2684         # check if our compiler supports Motorola AltiVec C API
2685         check_cc <<EOF || disable altivec
2686 $inc_altivec_h
2687 int main(void) {
2688     vector signed int v1, v2, v3;
2689     v1 = vec_add(v2,v3);
2690     return 0;
2691 }
2692 EOF
2693
2694         # check if our compiler supports braces for vector declarations
2695         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2696 $inc_altivec_h
2697 int main (void) { (vector int) {1}; return 0; }
2698 EOF
2699     fi
2700
2701 elif enabled sparc; then
2702
2703     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2704         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2705
2706 elif enabled x86; then
2707
2708     enable local_aligned_8 local_aligned_16
2709
2710     # check whether EBP is available on x86
2711     # As 'i' is stored on the stack, this program will crash
2712     # if the base pointer is used to access it because the
2713     # base pointer is cleared in the inline assembly code.
2714     check_exec_crash <<EOF && enable ebp_available
2715     volatile int i=0;
2716     __asm__ volatile (
2717         "xorl %%ebp, %%ebp"
2718     ::: "%ebp");
2719     return i;
2720 EOF
2721
2722     # check whether EBX is available on x86
2723     check_asm ebx_available '""::"b"(0)' &&
2724         check_asm ebx_available '"":::"%ebx"'
2725
2726     # check whether xmm clobbers are supported
2727     check_asm xmm_clobbers '"":::"%xmm0"'
2728
2729     # check whether binutils is new enough to compile SSSE3/MMX2
2730     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2731     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2732
2733     check_asm bswap '"bswap %%eax" ::: "%eax"'
2734
2735     if ! disabled_any asm mmx yasm; then
2736         if check_cmd $yasmexe --version; then
2737             enabled x86_64 && yasm_extra="-m amd64"
2738             yasm_debug="-g dwarf2"
2739         elif check_cmd nasm -v; then
2740             yasmexe=nasm
2741             yasm_debug="-g -F dwarf"
2742             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2743         fi
2744
2745         YASMFLAGS="-f $objformat $yasm_extra"
2746         enabled pic               && append YASMFLAGS "-DPIC"
2747         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2748         case "$objformat" in
2749             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2750         esac
2751
2752         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2753             die "yasm not found, use --disable-yasm for a crippled build"
2754         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2755     fi
2756
2757     case "$cpu" in
2758         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2759             disable fast_clz
2760         ;;
2761     esac
2762
2763 fi
2764
2765 if enabled asm; then
2766     as=${gas:=$as}
2767     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2768         $nogas "GNU assembler not found, install gas-preprocessor"
2769 fi
2770
2771 check_ldflags -Wl,--as-needed
2772
2773 if check_func dlopen; then
2774     ldl=
2775 elif check_func dlopen -ldl; then
2776     ldl=-ldl
2777 fi
2778
2779 if enabled network; then
2780     check_type "sys/types.h sys/socket.h" socklen_t
2781     check_type netdb.h "struct addrinfo"
2782     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2783     check_type netinet/in.h "struct sockaddr_in6"
2784     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2785     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2786     # Prefer arpa/inet.h over winsock2
2787     if check_header arpa/inet.h ; then
2788         check_func closesocket
2789     elif check_header winsock2.h ; then
2790         check_func_headers winsock2.h closesocket -lws2 && \
2791             network_extralibs="-lws2" || \
2792         { check_func_headers winsock2.h closesocket -lws2_32 && \
2793             network_extralibs="-lws2_32"; }
2794         check_type ws2tcpip.h socklen_t
2795         check_type ws2tcpip.h "struct addrinfo"
2796         check_type ws2tcpip.h "struct ipv6_mreq"
2797         check_type ws2tcpip.h "struct sockaddr_in6"
2798         check_type ws2tcpip.h "struct sockaddr_storage"
2799         check_struct winsock2.h "struct sockaddr" sa_len
2800     else
2801         disable network
2802     fi
2803 fi
2804
2805 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2806 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2807
2808 check_func  fcntl
2809 check_func  fork
2810 check_func  getaddrinfo $network_extralibs
2811 check_func  gethrtime
2812 check_func  getrusage
2813 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2814 check_func  inet_aton $network_extralibs
2815 check_func  isatty
2816 check_func  localtime_r
2817 check_func  ${malloc_prefix}memalign            && enable memalign
2818 check_func  mkstemp
2819 check_func  mmap
2820 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2821 check_func  setrlimit
2822 check_func  strerror_r
2823 check_func  strptime
2824 check_func  strtok_r
2825 check_func_headers io.h setmode
2826 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2827 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2828 check_func_headers windows.h GetProcessTimes
2829 check_func_headers windows.h MapViewOfFile
2830 check_func_headers windows.h VirtualAlloc
2831
2832 check_header dlfcn.h
2833 check_header dxva2api.h
2834 check_header malloc.h
2835 check_header poll.h
2836 check_header sys/mman.h
2837 check_header sys/resource.h
2838 check_header sys/select.h
2839 check_header vdpau/vdpau.h
2840 check_header vdpau/vdpau_x11.h
2841 check_header X11/extensions/XvMClib.h
2842
2843 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2844
2845 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2846 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2847
2848 # check for some common methods of building with pthread support
2849 # do this before the optional library checks as some of them require pthreads
2850 if ! disabled pthreads && ! enabled w32threads; then
2851     enable pthreads
2852     if check_func pthread_create; then
2853         :
2854     elif check_func pthread_create -pthread; then
2855         add_cflags -pthread
2856         add_extralibs -pthread
2857     elif check_func pthread_create -pthreads; then
2858         add_cflags -pthreads
2859         add_extralibs -pthreads
2860     elif check_func pthread_create -lpthreadGC2; then
2861         add_extralibs -lpthreadGC2
2862     elif ! check_lib pthread.h pthread_create -lpthread; then
2863         disable pthreads
2864     fi
2865 fi
2866
2867 for thread in $THREADS_LIST; do
2868     if enabled $thread; then
2869         test -n "$thread_type" &&
2870             die "ERROR: Only one thread type must be selected." ||
2871             thread_type="$thread"
2872     fi
2873 done
2874
2875 check_lib math.h sin -lm && LIBM="-lm"
2876 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2877
2878 check_mathfunc exp2
2879 check_mathfunc exp2f
2880 check_mathfunc llrint
2881 check_mathfunc llrintf
2882 check_mathfunc log2
2883 check_mathfunc log2f
2884 check_mathfunc lrint
2885 check_mathfunc lrintf
2886 check_mathfunc round
2887 check_mathfunc roundf
2888 check_mathfunc trunc
2889 check_mathfunc truncf
2890
2891 # these are off by default, so fail if requested and not available
2892 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2893 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2894 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2895 enabled libdirac   && require_pkg_config dirac                          \
2896     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2897     "dirac_decoder_init dirac_encoder_init"
2898 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2899 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2900 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2901 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2902 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2903 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2904 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2905 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2906 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2907 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2908 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2909 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2910 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2911 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2912 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2913 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2914 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2915 enabled libvpx     && {
2916     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2917                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2918     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2919                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2920 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2921                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2922                         die "ERROR: libx264 version must be >= 0.118."; }
2923 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2924 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2925 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2926 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2927                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2928                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2929                         die "ERROR: openssl not found"; }
2930
2931 # libdc1394 check
2932 if enabled libdc1394; then
2933     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2934         enable libdc1394_2; } ||
2935     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2936         enable libdc1394_1; } ||
2937     die "ERROR: No version of libdc1394 found "
2938 fi
2939
2940 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2941     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2942     enable sdl &&
2943     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2944 fi
2945
2946 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2947
2948 check_header linux/fb.h
2949 check_header linux/videodev.h
2950 check_header linux/videodev2.h
2951 check_header sys/videoio.h
2952
2953 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2954 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2955 # w32api 3.12 had it defined wrong
2956 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2957
2958 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2959 { check_header dev/bktr/ioctl_meteor.h &&
2960   check_header dev/bktr/ioctl_bt848.h; } ||
2961 { check_header machine/ioctl_meteor.h &&
2962   check_header machine/ioctl_bt848.h; } ||
2963 { check_header dev/video/meteor/ioctl_meteor.h &&
2964   check_header dev/video/bktr/ioctl_bt848.h; } ||
2965 check_header dev/ic/bt8xx.h
2966
2967 check_header sndio.h
2968 check_header sys/soundcard.h
2969 check_header soundcard.h
2970
2971 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2972
2973 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2974
2975 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2976
2977 enabled libcdio &&
2978     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2979
2980 enabled x11grab                         &&
2981 check_header X11/Xlib.h                 &&
2982 check_header X11/extensions/XShm.h      &&
2983 check_header X11/extensions/Xfixes.h    &&
2984 check_func XOpenDisplay -lX11           &&
2985 check_func XShmCreateImage -lX11 -lXext &&
2986 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2987
2988 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2989 check_cpp_condition \
2990     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2991     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2992       disable vdpau; }
2993 fi
2994
2995 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2996
2997 # add some useful compiler flags if supported
2998 check_cflags -Wdeclaration-after-statement
2999 check_cflags -Wall
3000 check_cflags -Wno-parentheses
3001 check_cflags -Wno-switch
3002 check_cflags -Wno-format-zero-length
3003 check_cflags -Wdisabled-optimization
3004 check_cflags -Wpointer-arith
3005 check_cflags -Wredundant-decls
3006 check_cflags -Wno-pointer-sign
3007 check_cflags -Wcast-qual
3008 check_cflags -Wwrite-strings
3009 check_cflags -Wtype-limits
3010 check_cflags -Wundef
3011 check_cflags -Wmissing-prototypes
3012 check_cflags -Wstrict-prototypes
3013 enabled extra_warnings && check_cflags -Winline
3014
3015 # add some linker flags
3016 check_ldflags -Wl,--warn-common
3017 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3018 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3019
3020 echo "X{};" > $TMPV
3021 if test_ldflags -Wl,--version-script,$TMPV; then
3022     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3023     check_cc <<EOF && enable symver_asm_label
3024 void ff_foo(void) __asm__ ("av_foo@VERSION");
3025 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3026 EOF
3027     check_cc <<EOF && enable symver_gnu_asm
3028 __asm__(".symver ff_foo,av_foo@VERSION");
3029 void ff_foo(void) {}
3030 EOF
3031 fi
3032
3033 if [ -n "$optflags" ]; then
3034     add_cflags $optflags
3035 elif enabled small; then
3036     add_cflags $size_cflags
3037 elif enabled optimizations; then
3038     add_cflags $speed_cflags
3039 else
3040     add_cflags $noopt_cflags
3041 fi
3042 check_cflags -fno-math-errno
3043 check_cflags -fno-signed-zeros
3044
3045 if enabled icc; then
3046     # Just warnings, no remarks
3047     check_cflags -w1
3048     # -wd: Disable following warnings
3049     # 144, 167, 556: -Wno-pointer-sign
3050     # 1292: attribute "foo" ignored
3051     # 10006: ignoring unknown option -fno-signed-zeros
3052     # 10148: ignoring unknown option -Wno-parentheses
3053     # 10156: ignoring option '-W'; no argument required
3054     check_cflags -wd144,167,556,1292,10006,10148,10156
3055     # 11030: Warning unknown option --as-needed
3056     # 10156: ignoring option '-export'; no argument required
3057     check_ldflags -wd10156,11030
3058     # Allow to compile with optimizations
3059     check_ldflags -march=$cpu
3060     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3061     enable ebp_available
3062     if enabled x86_32; then
3063         test ${icc_version%%.*} -ge 11 && \
3064             check_cflags -falign-stack=maintain-16-byte || \
3065             disable aligned_stack
3066     fi
3067 elif enabled ccc; then
3068     # disable some annoying warnings
3069     add_cflags -msg_disable cvtu32to64
3070     add_cflags -msg_disable embedcomment
3071     add_cflags -msg_disable needconstext
3072     add_cflags -msg_disable nomainieee
3073     add_cflags -msg_disable ptrmismatch1
3074     add_cflags -msg_disable unreachcode
3075 elif enabled gcc; then
3076     check_cflags -fno-tree-vectorize
3077     check_cflags -Werror=implicit-function-declaration
3078     check_cflags -Werror=missing-prototypes
3079 elif enabled llvm_gcc; then
3080     check_cflags -mllvm -stack-alignment=16
3081 elif enabled clang; then
3082     check_cflags -mllvm -stack-alignment=16
3083     check_cflags -Qunused-arguments
3084 elif enabled armcc; then
3085     # 2523: use of inline assembler is deprecated
3086     add_cflags -W${armcc_opt},--diag_suppress=2523
3087     add_cflags -W${armcc_opt},--diag_suppress=1207
3088     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3089     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3090     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3091     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3092 elif enabled tms470; then
3093     add_cflags -pds=824 -pds=837
3094 elif enabled pathscale; then
3095     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3096 fi
3097
3098 enabled_any $THREADS_LIST      && enable threads
3099
3100 check_deps $CONFIG_LIST       \
3101            $CONFIG_EXTRA      \
3102            $HAVE_LIST         \
3103            $DECODER_LIST      \
3104            $ENCODER_LIST      \
3105            $HWACCEL_LIST      \
3106            $PARSER_LIST       \
3107            $BSF_LIST          \
3108            $DEMUXER_LIST      \
3109            $MUXER_LIST        \
3110            $FILTER_LIST       \
3111            $INDEV_LIST        \
3112            $OUTDEV_LIST       \
3113            $PROTOCOL_LIST     \
3114            $ACODEC_TESTS      \
3115            $VCODEC_TESTS      \
3116            $LAVF_TESTS        \
3117            $LAVFI_TESTS       \
3118            $SEEK_TESTS        \
3119
3120 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3121
3122 ! enabled_any memalign posix_memalign malloc_aligned &&
3123     enabled_any $need_memalign && enable memalign_hack
3124
3125 echo "install prefix            $prefix"
3126 echo "source path               $source_path"
3127 echo "C compiler                $cc"
3128 echo "ARCH                      $arch ($cpu)"
3129 if test "$build_suffix" != ""; then
3130     echo "build suffix              $build_suffix"
3131 fi
3132 if test "$extra_version" != ""; then
3133     echo "version string suffix     $extra_version"
3134 fi
3135 echo "big-endian                ${bigendian-no}"
3136 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3137 if enabled x86; then
3138     echo "${yasmexe}                      ${yasm-no}"
3139     echo "MMX enabled               ${mmx-no}"
3140     echo "MMX2 enabled              ${mmx2-no}"
3141     echo "3DNow! enabled            ${amd3dnow-no}"
3142     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3143     echo "SSE enabled               ${sse-no}"
3144     echo "SSSE3 enabled             ${ssse3-no}"
3145     echo "AVX enabled               ${avx-no}"
3146     echo "CMOV enabled              ${cmov-no}"
3147     echo "CMOV is fast              ${fast_cmov-no}"
3148     echo "EBX available             ${ebx_available-no}"
3149     echo "EBP available             ${ebp_available-no}"
3150 fi
3151 if enabled arm; then
3152     echo "ARMv5TE enabled           ${armv5te-no}"
3153     echo "ARMv6 enabled             ${armv6-no}"
3154     echo "ARMv6T2 enabled           ${armv6t2-no}"
3155     echo "ARM VFP enabled           ${armvfp-no}"
3156     echo "IWMMXT enabled            ${iwmmxt-no}"
3157     echo "NEON enabled              ${neon-no}"
3158 fi
3159 if enabled mips; then
3160     echo "MMI enabled               ${mmi-no}"
3161 fi
3162 if enabled ppc; then
3163     echo "AltiVec enabled           ${altivec-no}"
3164     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3165     echo "dcbzl available           ${dcbzl-no}"
3166 fi
3167 if enabled sparc; then
3168     echo "VIS enabled               ${vis-no}"
3169 fi
3170 echo "debug symbols             ${debug-no}"
3171 echo "optimize for size         ${small-no}"
3172 echo "optimizations             ${optimizations-no}"
3173 echo "static                    ${static-no}"
3174 echo "shared                    ${shared-no}"
3175 echo "postprocessing support    ${postproc-no}"
3176 echo "new filter support        ${avfilter-no}"
3177 echo "network support           ${network-no}"
3178 echo "threading support         ${thread_type-no}"
3179 echo "SDL support               ${sdl-no}"
3180 echo "Sun medialib support      ${mlib-no}"
3181 echo "libdxva2 enabled          ${dxva2-no}"
3182 echo "libva enabled             ${vaapi-no}"
3183 echo "libvdpau enabled          ${vdpau-no}"
3184 echo "AVISynth enabled          ${avisynth-no}"
3185 echo "frei0r enabled            ${frei0r-no}"
3186 echo "gnutls enabled            ${gnutls-no}"
3187 echo "libcdio support           ${libcdio-no}"
3188 echo "libdc1394 support         ${libdc1394-no}"
3189 echo "libdirac enabled          ${libdirac-no}"
3190 echo "libfaac enabled           ${libfaac-no}"
3191 echo "libgsm enabled            ${libgsm-no}"
3192 echo "libmp3lame enabled        ${libmp3lame-no}"
3193 echo "libnut enabled            ${libnut-no}"
3194 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3195 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3196 echo "libopencv support         ${libopencv-no}"
3197 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3198 echo "libpulse enabled          ${libpulse-no}"
3199 echo "librtmp enabled           ${librtmp-no}"
3200 echo "libschroedinger enabled   ${libschroedinger-no}"
3201 echo "libspeex enabled          ${libspeex-no}"
3202 echo "libtheora enabled         ${libtheora-no}"
3203 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3204 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3205 echo "libvorbis enabled         ${libvorbis-no}"
3206 echo "libvpx enabled            ${libvpx-no}"
3207 echo "libx264 enabled           ${libx264-no}"
3208 echo "libxavs enabled           ${libxavs-no}"
3209 echo "libxvid enabled           ${libxvid-no}"
3210 echo "openssl enabled           ${openssl-no}"
3211 echo "zlib enabled              ${zlib-no}"
3212 echo "bzlib enabled             ${bzlib-no}"
3213 echo
3214
3215 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3216     echo "Enabled ${type}s:"
3217     eval list=\$$(toupper $type)_LIST
3218     print_enabled '_*' $list | sort | pr -r -3 -t
3219     echo
3220 done
3221
3222 license="LGPL version 2.1 or later"
3223 if enabled nonfree; then
3224     license="nonfree and unredistributable"
3225 elif enabled gplv3; then
3226     license="GPL version 3 or later"
3227 elif enabled lgplv3; then
3228     license="LGPL version 3 or later"
3229 elif enabled gpl; then
3230     license="GPL version 2 or later"
3231 fi
3232
3233 echo "License: $license"
3234
3235 echo "Creating config.mak and config.h..."
3236
3237 test -e Makefile || $ln_s "$source_path/Makefile" .
3238
3239 config_files="$TMPH config.mak"
3240
3241 cat > config.mak <<EOF
3242 # Automatically generated by configure - do not modify!
3243 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3244 prefix=$prefix
3245 LIBDIR=\$(DESTDIR)$libdir
3246 SHLIBDIR=\$(DESTDIR)$shlibdir
3247 INCDIR=\$(DESTDIR)$incdir
3248 BINDIR=\$(DESTDIR)$bindir
3249 DATADIR=\$(DESTDIR)$datadir
3250 MANDIR=\$(DESTDIR)$mandir
3251 SRC_PATH=$source_path
3252 CC_IDENT=$cc_ident
3253 ARCH=$arch
3254 CC=$cc
3255 AS=$as
3256 LD=$ld
3257 DEPCC=$dep_cc
3258 YASM=$yasmexe
3259 YASMDEP=$yasmexe
3260 AR=$ar
3261 RANLIB=$ranlib
3262 LN_S=$ln_s
3263 CPPFLAGS=$CPPFLAGS
3264 CFLAGS=$CFLAGS
3265 ASFLAGS=$ASFLAGS
3266 AS_O=$CC_O
3267 CC_O=$CC_O
3268 DLLTOOL=$dlltool
3269 LDFLAGS=$LDFLAGS
3270 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3271 SHFLAGS=$SHFLAGS
3272 YASMFLAGS=$YASMFLAGS
3273 BUILDSUF=$build_suffix
3274 FULLNAME=$FULLNAME
3275 LIBPREF=$LIBPREF
3276 LIBSUF=$LIBSUF
3277 LIBNAME=$LIBNAME
3278 SLIBPREF=$SLIBPREF
3279 SLIBSUF=$SLIBSUF
3280 EXESUF=$EXESUF
3281 EXTRA_VERSION=$extra_version
3282 DEPFLAGS=$DEPFLAGS
3283 CCDEP=$CCDEP
3284 ASDEP=$ASDEP
3285 CC_DEPFLAGS=$CC_DEPFLAGS
3286 AS_DEPFLAGS=$AS_DEPFLAGS
3287 HOSTCC=$host_cc
3288 HOSTCFLAGS=$host_cflags
3289 HOSTEXESUF=$HOSTEXESUF
3290 HOSTLDFLAGS=$host_ldflags
3291 HOSTLIBS=$host_libs
3292 TARGET_EXEC=$target_exec
3293 TARGET_PATH=$target_path
3294 SDL_LIBS=$sdl_libs
3295 SDL_CFLAGS=$sdl_cflags
3296 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3297 EXTRALIBS=$extralibs
3298 INSTALL=install
3299 LIBTARGET=${LIBTARGET}
3300 SLIBNAME=${SLIBNAME}
3301 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3302 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3303 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3304 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3305 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3306 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3307 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3308 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3309 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3310 EOF
3311
3312 get_version(){
3313     name=$1
3314     file=$source_path/$2
3315     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3316     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3317     lcname=$(tolower $name)
3318     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3319     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3320 }
3321
3322 get_version LIBSWSCALE  libswscale/swscale.h
3323 get_version LIBPOSTPROC libpostproc/postprocess.h
3324 get_version LIBAVCODEC  libavcodec/version.h
3325 get_version LIBAVDEVICE libavdevice/avdevice.h
3326 get_version LIBAVFORMAT libavformat/version.h
3327 get_version LIBAVUTIL   libavutil/avutil.h
3328 get_version LIBAVFILTER libavfilter/avfilter.h
3329
3330 cat > $TMPH <<EOF
3331 /* Automatically generated by configure - do not modify! */
3332 #ifndef LIBAV_CONFIG_H
3333 #define LIBAV_CONFIG_H
3334 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3335 #define LIBAV_LICENSE "$(c_escape $license)"
3336 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3337 #define CC_TYPE "$cc_type"
3338 #define CC_VERSION $cc_version
3339 #define restrict $_restrict
3340 #define EXTERN_PREFIX "${extern_prefix}"
3341 #define EXTERN_ASM ${extern_prefix}
3342 #define SLIBSUF "$SLIBSUF"
3343 EOF
3344
3345 test -n "$malloc_prefix" &&
3346     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3347
3348 if enabled small || disabled optimizations; then
3349     echo "#undef  av_always_inline"  >> $TMPH
3350     if enabled small; then
3351         echo "#define av_always_inline inline"  >> $TMPH
3352     else
3353         echo "#define av_always_inline av_unused"  >> $TMPH
3354     fi
3355 fi
3356
3357 if enabled yasm; then
3358     append config_files $TMPASM
3359     printf '' >$TMPASM
3360 fi
3361
3362 print_config ARCH_   "$config_files" $ARCH_LIST
3363 print_config HAVE_   "$config_files" $HAVE_LIST
3364 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3365                                      $CONFIG_EXTRA      \
3366                                      $DECODER_LIST      \
3367                                      $ENCODER_LIST      \
3368                                      $HWACCEL_LIST      \
3369                                      $PARSER_LIST       \
3370                                      $BSF_LIST          \
3371                                      $DEMUXER_LIST      \
3372                                      $MUXER_LIST        \
3373                                      $FILTER_LIST       \
3374                                      $PROTOCOL_LIST     \
3375                                      $INDEV_LIST        \
3376                                      $OUTDEV_LIST       \
3377
3378 cat >>config.mak <<EOF
3379 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3380 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3381 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3382 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3383 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3384 EOF
3385
3386 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3387
3388 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3389 cp_if_changed $TMPH config.h
3390 touch .config
3391
3392 enabled yasm && cp_if_changed $TMPASM config.asm
3393
3394 cat > $TMPH <<EOF
3395 /* Generated by ffconf */
3396 #ifndef AVUTIL_AVCONFIG_H
3397 #define AVUTIL_AVCONFIG_H
3398 EOF
3399
3400 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3401
3402 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3403
3404 cp_if_changed $TMPH libavutil/avconfig.h
3405
3406 test -n "$WARNINGS" && printf "\n$WARNINGS"
3407
3408 # build pkg-config files
3409
3410 pkgconfig_generate(){
3411 name=$1
3412 shortname=${name#lib}${build_suffix}
3413 comment=$2
3414 version=$3
3415 libs=$4
3416 requires=$5
3417 enabled ${name#lib} || return 0
3418 mkdir -p $name
3419 cat <<EOF > $name/$name.pc
3420 prefix=$prefix
3421 exec_prefix=\${prefix}
3422 libdir=$libdir
3423 includedir=$incdir
3424
3425 Name: $name
3426 Description: $comment
3427 Version: $version
3428 Requires: $(enabled shared || echo $requires)
3429 Requires.private: $(enabled shared && echo $requires)
3430 Conflicts:
3431 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3432 Libs.private: $(enabled shared && echo $libs)
3433 Cflags: -I\${includedir}
3434 EOF
3435 cat <<EOF > $name/$name-uninstalled.pc
3436 prefix=
3437 exec_prefix=
3438 libdir=\${pcfiledir}
3439 includedir=${source_path}
3440
3441 Name: $name
3442 Description: $comment
3443 Version: $version
3444 Requires: $requires
3445 Conflicts:
3446 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3447 Cflags: -I\${includedir}
3448 EOF
3449 }
3450
3451 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3452 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3453 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3454 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3455 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3456 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3457 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"