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

   1 #!/bin/sh
   2 #
   3 # Libav configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken Libav."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-avconv         disable avconv build
  85   --disable-avplay         disable avplay build
  86   --disable-avprobe        disable avprobe build
  87   --disable-avserver       disable avserver build
  88   --disable-avdevice       disable libavdevice build
  89   --disable-avcodec        disable libavcodec build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --disable-postproc       disable libpostproc build
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --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 https_protocol_select="tls_protocol"
1482 mmsh_protocol_select="http_protocol"
1483 mmst_protocol_deps="network"
1484 rtmp_protocol_select="tcp_protocol"
1485 rtp_protocol_select="udp_protocol"
1486 tcp_protocol_deps="network"
1487 tls_protocol_deps_any="openssl gnutls"
1488 tls_protocol_select="tcp_protocol"
1489 udp_protocol_deps="network"
1490
1491 # filters
1492 blackframe_filter_deps="gpl"
1493 boxblur_filter_deps="gpl"
1494 cropdetect_filter_deps="gpl"
1495 delogo_filter_deps="gpl"
1496 drawtext_filter_deps="libfreetype"
1497 frei0r_filter_deps="frei0r dlopen strtok_r"
1498 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1499 hqdn3d_filter_deps="gpl"
1500 ocv_filter_deps="libopencv"
1501 scale_filter_deps="swscale"
1502 yadif_filter_deps="gpl"
1503
1504 # libraries
1505 avdevice_deps="avcodec avformat"
1506 avformat_deps="avcodec"
1507 postproc_deps="gpl"
1508
1509 # programs
1510 ffmpeg_deps="avcodec avformat swscale"
1511 ffmpeg_select="buffer_filter"
1512 avconv_deps="avcodec avformat swscale"
1513 avconv_select="buffer_filter"
1514 avplay_deps="avcodec avformat swscale sdl"
1515 avplay_select="rdft"
1516 avprobe_deps="avcodec avformat"
1517 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1518 avserver_extralibs='$ldl'
1519
1520 doc_deps="texi2html"
1521
1522 # tests
1523
1524 test_deps(){
1525     suf1=$1
1526     suf2=$2
1527     shift 2
1528     for v; do
1529         dep=${v%=*}
1530         tests=${v#*=}
1531         for name in ${tests}; do
1532             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1533         done
1534     done
1535 }
1536
1537 mxf_d10_test_deps="avfilter"
1538 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1539
1540 test_deps _encoder _decoder                                             \
1541     adpcm_g726=g726                                                     \
1542     adpcm_ima_qt                                                        \
1543     adpcm_ima_wav                                                       \
1544     adpcm_ms                                                            \
1545     adpcm_swf                                                           \
1546     adpcm_yamaha=adpcm_yam                                              \
1547     alac                                                                \
1548     asv1                                                                \
1549     asv2                                                                \
1550     bmp                                                                 \
1551     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1552     dvvideo="dv dv50"                                                   \
1553     ffv1                                                                \
1554     flac                                                                \
1555     flashsv                                                             \
1556     flv                                                                 \
1557     gif                                                                 \
1558     h261                                                                \
1559     h263="h263 h263p"                                                   \
1560     huffyuv                                                             \
1561     jpegls                                                              \
1562     mjpeg="jpg mjpeg ljpeg"                                             \
1563     mp2                                                                 \
1564     mpeg1video="mpeg mpeg1b"                                            \
1565     mpeg2video="mpeg2 mpeg2thread"                                      \
1566     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1567     msmpeg4v3=msmpeg4                                                   \
1568     msmpeg4v2                                                           \
1569     pbm=pbmpipe                                                         \
1570     pcx                                                                 \
1571     pgm="pgm pgmpipe"                                                   \
1572     png                                                                 \
1573     ppm="ppm ppmpipe"                                                   \
1574     rawvideo="rgb yuv"                                                  \
1575     roq                                                                 \
1576     rv10                                                                \
1577     rv20                                                                \
1578     sgi                                                                 \
1579     snow="snow snowll"                                                  \
1580     svq1                                                                \
1581     targa=tga                                                           \
1582     tiff                                                                \
1583     wmav1                                                               \
1584     wmav2                                                               \
1585     wmv1                                                                \
1586     wmv2                                                                \
1587
1588 test_deps _muxer _demuxer                                               \
1589     aiff                                                                \
1590     pcm_alaw=alaw                                                       \
1591     asf                                                                 \
1592     au                                                                  \
1593     avi                                                                 \
1594     dv=dv_fmt                                                           \
1595     ffm                                                                 \
1596     flv=flv_fmt                                                         \
1597     gxf                                                                 \
1598     matroska=mkv                                                        \
1599     mmf                                                                 \
1600     mov                                                                 \
1601     pcm_mulaw=mulaw                                                     \
1602     mxf="mxf mxf_d10"                                                   \
1603     nut                                                                 \
1604     ogg                                                                 \
1605     rawvideo=pixfmt                                                     \
1606     rm                                                                  \
1607     swf                                                                 \
1608     mpegts=ts                                                           \
1609     voc                                                                 \
1610     wav                                                                 \
1611     yuv4mpegpipe=yuv4mpeg                                               \
1612
1613 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1614 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1615
1616 # default parameters
1617
1618 logfile="config.log"
1619
1620 # installation paths
1621 prefix_default="/usr/local"
1622 bindir_default='${prefix}/bin'
1623 datadir_default='${prefix}/share/avconv'
1624 incdir_default='${prefix}/include'
1625 libdir_default='${prefix}/lib'
1626 mandir_default='${prefix}/share/man'
1627 shlibdir_default="$libdir_default"
1628
1629 # toolchain
1630 ar_default="ar"
1631 cc_default="gcc"
1632 cc_version=\"unknown\"
1633 host_cc_default="gcc"
1634 ln_s="ln -sf"
1635 nm_default="nm"
1636 objformat="elf"
1637 pkg_config_default=pkg-config
1638 ranlib="ranlib"
1639 yasmexe="yasm"
1640 nogas=":"
1641
1642 nm_opts='-g'
1643
1644 # machine
1645 arch_default=$(uname -m)
1646 cpu="generic"
1647
1648 # OS
1649 target_os_default=$(tolower $(uname -s))
1650 host_os=$target_os_default
1651
1652 # configurable options
1653 enable avcodec
1654 enable avdevice
1655 enable avfilter
1656 enable avformat
1657 enable avutil
1658 enable asm
1659 enable debug
1660 enable doc
1661 enable fastdiv
1662 enable ffmpeg
1663 enable avconv
1664 enable avplay
1665 enable avprobe
1666 enable avserver
1667 enable network
1668 enable optimizations
1669 enable postproc
1670 enable protocols
1671 enable static
1672 enable swscale
1673 enable swscale_alpha
1674
1675 # build settings
1676 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1677 AVSERVERLDFLAGS=-Wl,-E
1678 LIBPREF="lib"
1679 LIBSUF=".a"
1680 FULLNAME='$(NAME)$(BUILDSUF)'
1681 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1682 SLIBPREF="lib"
1683 SLIBSUF=".so"
1684 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1685 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1686 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1687 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1688 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1689 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1690
1691 AS_O='-o $@'
1692 CC_O='-o $@'
1693
1694 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1695 host_libs='-lm'
1696
1697 target_path='$(CURDIR)'
1698
1699 # since the object filename is not given with the -MM flag, the compiler
1700 # is only able to print the basename, and we must add the path ourselves
1701 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1702 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1703
1704 # find source path
1705 if test -f configure; then
1706     source_path=.
1707 else
1708     source_path=$(cd $(dirname "$0"); pwd)
1709     echo "$source_path" | grep -q '[[:blank:]]' &&
1710         die "Out of tree builds are impossible with whitespace in source path."
1711     test -e "$source_path/config.h" &&
1712         die "Out of tree builds are impossible with config.h in source dir."
1713 fi
1714
1715 for v in "$@"; do
1716     r=${v#*=}
1717     l=${v%"$r"}
1718     r=$(sh_quote "$r")
1719     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1720 done
1721
1722 find_things(){
1723     thing=$1
1724     pattern=$2
1725     file=$source_path/$3
1726     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1727 }
1728
1729 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1730 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1731 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1732 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1733 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1734 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1735 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1736 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1737 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1738 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1739 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1740
1741 find_tests(){
1742     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1743 }
1744
1745 ACODEC_TESTS=$(find_tests acodec)
1746 VCODEC_TESTS=$(find_tests vsynth1)
1747 LAVF_TESTS=$(find_tests lavf)
1748 LAVFI_TESTS=$(find_tests lavfi)
1749 SEEK_TESTS=$(find_tests seek seek_)
1750
1751 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1752
1753 for n in $COMPONENT_LIST; do
1754     v=$(toupper ${n%s})_LIST
1755     eval enable \$$v
1756     eval ${n}_if_any="\$$v"
1757 done
1758
1759 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1760
1761 die_unknown(){
1762     echo "Unknown option \"$1\"."
1763     echo "See $0 --help for available options."
1764     exit 1
1765 }
1766
1767 show_list() {
1768     suffix=_$1
1769     shift
1770     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1771     exit 0
1772 }
1773
1774 for opt do
1775     optval="${opt#*=}"
1776     case "$opt" in
1777     --extra-ldflags=*) add_ldflags $optval
1778     ;;
1779     --extra-libs=*) add_extralibs $optval
1780     ;;
1781     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1782     ;;
1783     --enable-debug=*) debuglevel="$optval"
1784     ;;
1785     --disable-everything)
1786     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1787     ;;
1788     --enable-*=*|--disable-*=*)
1789     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1790     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1791     eval list=\$$(toupper $thing)_LIST
1792     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1793     $action $(filter "$name" $list)
1794     ;;
1795     --enable-?*|--disable-?*)
1796     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1797     if is_in $option $COMPONENT_LIST; then
1798         test $action = disable && action=unset
1799         eval $action \$$(toupper ${option%s})_LIST
1800     elif is_in $option $CMDLINE_SELECT; then
1801         $action $option
1802     else
1803         die_unknown $opt
1804     fi
1805     ;;
1806     --list-*)
1807         NAME="${opt#--list-}"
1808         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1809         NAME=${NAME%s}
1810         eval show_list $NAME \$$(toupper $NAME)_LIST
1811     ;;
1812     --help|-h) show_help
1813     ;;
1814     *)
1815     optname="${opt%%=*}"
1816     optname="${optname#--}"
1817     optname=$(echo "$optname" | sed 's/-/_/g')
1818     if is_in $optname $CMDLINE_SET; then
1819         eval $optname='$optval'
1820     elif is_in $optname $CMDLINE_APPEND; then
1821         append $optname "$optval"
1822     else
1823          die_unknown $opt
1824     fi
1825     ;;
1826     esac
1827 done
1828
1829 disabled logging && logfile=/dev/null
1830
1831 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1832 set >> $logfile
1833
1834 test -n "$cross_prefix" && enable cross_compile
1835
1836 if enabled cross_compile; then
1837     test -n "$arch" && test -n "$target_os" ||
1838         die "Must specify target arch and OS when cross-compiling"
1839 fi
1840
1841 set_default arch target_os
1842
1843 ar_default="${cross_prefix}${ar_default}"
1844 cc_default="${cross_prefix}${cc_default}"
1845 nm_default="${cross_prefix}${nm_default}"
1846 pkg_config_default="${cross_prefix}${pkg_config_default}"
1847 ranlib="${cross_prefix}${ranlib}"
1848
1849 sysinclude_default="${sysroot}/usr/include"
1850
1851 set_default cc nm pkg_config sysinclude
1852 enabled cross_compile || host_cc_default=$cc
1853 set_default host_cc
1854
1855 if ! $pkg_config --version >/dev/null 2>&1; then
1856     warn "$pkg_config not found, library detection may fail."
1857     pkg_config=false
1858 fi
1859
1860 exesuf() {
1861     case $1 in
1862         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1863     esac
1864 }
1865
1866 EXESUF=$(exesuf $target_os)
1867 HOSTEXESUF=$(exesuf $host_os)
1868
1869 # set temporary file name
1870 : ${TMPDIR:=$TEMPDIR}
1871 : ${TMPDIR:=$TMP}
1872 : ${TMPDIR:=/tmp}
1873
1874 if ! check_cmd mktemp -u XXXXXX; then
1875     # simple replacement for missing mktemp
1876     # NOT SAFE FOR GENERAL USE
1877     mktemp(){
1878         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1879     }
1880 fi
1881
1882 tmpfile(){
1883     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1884         (set -C; exec > $tmp) 2>/dev/null ||
1885         die "Unable to create temporary file in $TMPDIR."
1886     append TMPFILES $tmp
1887     eval $1=$tmp
1888 }
1889
1890 trap 'rm -f -- $TMPFILES' EXIT
1891
1892 tmpfile TMPC  .c
1893 tmpfile TMPE  $EXESUF
1894 tmpfile TMPH  .h
1895 tmpfile TMPO  .o
1896 tmpfile TMPS  .S
1897 tmpfile TMPV  .ver
1898 tmpfile TMPSH .sh
1899 tmpfile TMPASM .asm
1900
1901 unset -f mktemp
1902
1903 chmod +x $TMPE
1904
1905 # make sure we can execute files in $TMPDIR
1906 cat > $TMPSH 2>> $logfile <<EOF
1907 #! /bin/sh
1908 EOF
1909 chmod +x $TMPSH >> $logfile 2>&1
1910 if ! $TMPSH >> $logfile 2>&1; then
1911     cat <<EOF
1912 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1913 variable to another directory and make sure that it is not mounted noexec.
1914 EOF
1915     die "Sanity test failed."
1916 fi
1917
1918 filter_cflags=echo
1919 filter_cppflags=echo
1920 filter_asflags=echo
1921
1922 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1923     cc_type=llvm_gcc
1924     cc_version=__VERSION__
1925     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1926     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1927     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1928     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1929     speed_cflags='-O3'
1930     size_cflags='-Os'
1931 elif $cc -v 2>&1 | grep -qi ^gcc; then
1932     cc_type=gcc
1933     cc_version=__VERSION__
1934     gcc_version=$($cc --version | head -n1)
1935     gcc_basever=$($cc -dumpversion)
1936     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1937     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1938     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1939     if ! $cc -dumpversion | grep -q '^2\.'; then
1940         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1941         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1942     fi
1943     speed_cflags='-O3'
1944     size_cflags='-Os'
1945 elif $cc --version 2>/dev/null | grep -q Intel; then
1946     cc_type=icc
1947     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1948     cc_ident=$($cc --version | head -n1)
1949     icc_version=$($cc -dumpversion)
1950     CC_DEPFLAGS='-MMD'
1951     AS_DEPFLAGS='-MMD'
1952     speed_cflags='-O3'
1953     size_cflags='-Os'
1954     noopt_cflags='-O1'
1955 elif $cc -v 2>&1 | grep -q xlc; then
1956     cc_type=xlc
1957     cc_version="AV_STRINGIFY(__IBMC__)"
1958     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1959     speed_cflags='-O5'
1960     size_cflags='-O5 -qcompact'
1961 elif $cc -V 2>/dev/null | grep -q Compaq; then
1962     cc_type=ccc
1963     cc_version="AV_STRINGIFY(__DECC_VER)"
1964     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1965     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1966     debuglevel=3
1967     add_ldflags -Wl,-z,now # calls to libots crash without this
1968     speed_cflags='-fast'
1969     size_cflags='-O1'
1970 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1971     test -d "$sysroot" || die "No valid sysroot specified."
1972     cc_type=armcc
1973     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1974     cc_ident=$($cc --vsn | head -n1)
1975     armcc_conf="$PWD/armcc.conf"
1976     $cc --arm_linux_configure                 \
1977         --arm_linux_config_file="$armcc_conf" \
1978         --configure_sysroot="$sysroot"        \
1979         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1980         die "Error creating armcc configuration file."
1981     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1982     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1983     as_default="${cross_prefix}gcc"
1984     CC_DEPFLAGS='-MMD'
1985     AS_DEPFLAGS='-MMD'
1986     speed_cflags='-O3'
1987     size_cflags='-Os'
1988     filter_asflags="filter_out -W${armcc_opt}*"
1989 elif $cc -version 2>/dev/null | grep -q TMS470; then
1990     cc_type=tms470
1991     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1992     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1993     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1994     CC_O='-fr=$(@D)'
1995     as_default="${cross_prefix}gcc"
1996     ld_default="${cross_prefix}gcc"
1997     TMPO=$(basename $TMPC .c).o
1998     append TMPFILES $TMPO
1999     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2000     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2001     AS_DEPFLAGS='-MMD'
2002     speed_cflags='-O3 -mf=5'
2003     size_cflags='-O3 -mf=2'
2004     filter_cflags=tms470_flags
2005     tms470_flags(){
2006         for flag; do
2007             case $flag in
2008                 -march=*|-mcpu=*)
2009                     case "${flag#*=}" in
2010                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2011                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2012                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2013                         armv6*|arm11*)          echo -mv=6   ;;
2014                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2015                                                 echo -mv=5e  ;;
2016                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2017                     esac
2018                     ;;
2019                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2020                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2021                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2022                 -msoft-float)   echo --float_support=vfplib       ;;
2023                 -O[0-3]|-mf=*)  echo $flag                        ;;
2024                 -g)             echo -g -mn                       ;;
2025                 -pds=*)         echo $flag                        ;;
2026             esac
2027         done
2028     }
2029 elif $cc -v 2>&1 | grep -q clang; then
2030     cc_type=clang
2031     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2032         cc_version=__clang_version__ || cc_version=__VERSION__
2033     cc_ident=$($cc --version | head -n1)
2034     CC_DEPFLAGS='-MMD'
2035     AS_DEPFLAGS='-MMD'
2036     speed_cflags='-O3'
2037     size_cflags='-Os'
2038 elif $cc -V 2>&1 | grep -q Sun; then
2039     cc_type=suncc
2040     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2041     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2042     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2043     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2044     add_ldflags -xc99
2045     speed_cflags='-O5'
2046     size_cflags='-O5 -xspace'
2047     filter_cflags=suncc_flags
2048     suncc_flags(){
2049         for flag; do
2050             case $flag in
2051                 -march=*|-mcpu=*)
2052                     case "${flag#*=}" in
2053                         native)                   echo -xtarget=native       ;;
2054                         v9|niagara)               echo -xarch=sparc          ;;
2055                         ultrasparc)               echo -xarch=sparcvis       ;;
2056                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2057                         i586|pentium)             echo -xchip=pentium        ;;
2058                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2059                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2060                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2061                         pentium4*)          echo -xtarget=pentium4           ;;
2062                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2063                         *-sse3)             echo -xarch=sse3                 ;;
2064                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2065                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2066                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2067                         k8|opteron|athlon64|athlon-fx)
2068                                                   echo -xarch=sse2a          ;;
2069                         athlon*)                  echo -xarch=pentium_proa   ;;
2070                     esac
2071                     ;;
2072                 -std=c99)             echo -xc99              ;;
2073                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2074                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2075                 -W*,*)                echo $flag              ;;
2076                 -f*-*|-W*)                                    ;;
2077                 *)                    echo $flag              ;;
2078             esac
2079         done
2080     }
2081 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2082     cc_type=pathscale
2083     cc_version=__PATHSCALE__
2084     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2085     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2086     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2087     speed_cflags='-O2'
2088     size_cflags='-Os'
2089     filter_cflags='filter_out -Wdisabled-optimization'
2090 elif $cc -v 2>&1 | grep -q Open64; then
2091     cc_type=open64
2092     cc_version=__OPEN64__
2093     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2094     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2095     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2096     speed_cflags='-O2'
2097     size_cflags='-Os'
2098     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2099 fi
2100
2101 test -n "$cc_type" && enable $cc_type ||
2102     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2103
2104 : ${as_default:=$cc}
2105 : ${dep_cc_default:=$cc}
2106 : ${ld_default:=$cc}
2107 set_default ar as dep_cc ld
2108
2109 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2110 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2111
2112 add_cflags $extra_cflags
2113 add_asflags $extra_cflags
2114
2115 if test -n "$sysroot"; then
2116     case "$cc_type" in
2117         gcc|llvm_gcc|clang)
2118             add_cppflags --sysroot="$sysroot"
2119             add_ldflags --sysroot="$sysroot"
2120         ;;
2121         tms470)
2122             add_cppflags -I"$sysinclude"
2123             add_ldflags  --sysroot="$sysroot"
2124         ;;
2125     esac
2126 fi
2127
2128 if test "$cpu" = host; then
2129     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2130
2131     case "$cc_type" in
2132         gcc|llvm_gcc)
2133             check_native(){
2134                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2135                 sed -n "/cc1.*$1=/{
2136                             s/.*$1=\\([^ ]*\\).*/\\1/
2137                             p
2138                             q
2139                         }" $TMPE
2140             }
2141             cpu=$(check_native -march || check_native -mcpu)
2142         ;;
2143     esac
2144
2145     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2146 fi
2147
2148 # Deal with common $arch aliases
2149 case "$arch" in
2150     arm*)
2151         arch="arm"
2152     ;;
2153     mips|mipsel|IP*)
2154         arch="mips"
2155     ;;
2156     mips64*)
2157         arch="mips"
2158         subarch="mips64"
2159     ;;
2160     parisc|hppa)
2161         arch="parisc"
2162     ;;
2163     parisc64|hppa64)
2164         arch="parisc"
2165         subarch="parisc64"
2166     ;;
2167     "Power Macintosh"|ppc|powerpc)
2168         arch="ppc"
2169     ;;
2170     ppc64|powerpc64)
2171         arch="ppc"
2172         subarch="ppc64"
2173     ;;
2174     s390|s390x)
2175         arch="s390"
2176     ;;
2177     sh4|sh)
2178         arch="sh4"
2179     ;;
2180     sun4u|sparc64)
2181         arch="sparc"
2182         subarch="sparc64"
2183     ;;
2184     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2185         arch="x86"
2186     ;;
2187 esac
2188
2189 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2190 enable $arch
2191
2192 # Add processor-specific flags
2193 if test "$cpu" = generic; then
2194     : do nothing
2195 elif enabled ppc; then
2196
2197     case $(tolower $cpu) in
2198         601|ppc601|powerpc601)
2199             cpuflags="-mcpu=601"
2200             disable altivec
2201         ;;
2202         603*|ppc603*|powerpc603*)
2203             cpuflags="-mcpu=603"
2204             disable altivec
2205         ;;
2206         604*|ppc604*|powerpc604*)
2207             cpuflags="-mcpu=604"
2208             disable altivec
2209         ;;
2210         g3|75*|ppc75*|powerpc75*)
2211             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2212             disable altivec
2213         ;;
2214         g4|745*|ppc745*|powerpc745*)
2215             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2216         ;;
2217         74*|ppc74*|powerpc74*)
2218             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2219         ;;
2220         g5|970|ppc970|powerpc970|power4*)
2221             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2222         ;;
2223         cell)
2224             cpuflags="-mcpu=cell"
2225             enable ldbrx
2226         ;;
2227         e500v2)
2228             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2229             disable altivec
2230         ;;
2231         e500)
2232             cpuflags="-mcpu=8540 -mhard-float"
2233             disable altivec
2234         ;;
2235     esac
2236
2237 elif enabled x86; then
2238
2239     case $cpu in
2240         i[345]86|pentium)
2241             cpuflags="-march=$cpu"
2242             disable mmx
2243         ;;
2244         # targets that do NOT support conditional mov (cmov)
2245         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2246             cpuflags="-march=$cpu"
2247             disable cmov
2248         ;;
2249         # targets that do support conditional mov (cmov)
2250         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2251             cpuflags="-march=$cpu"
2252             enable cmov
2253             enable fast_cmov
2254         ;;
2255         # targets that do support conditional mov but on which it's slow
2256         pentium4|pentium4m|prescott|nocona)
2257             cpuflags="-march=$cpu"
2258             enable cmov
2259             disable fast_cmov
2260         ;;
2261     esac
2262
2263 elif enabled sparc; then
2264
2265     case $cpu in
2266         niagara)
2267             cpuflags="-mcpu=$cpu"
2268             disable vis
2269         ;;
2270         sparc64)
2271             cpuflags="-mcpu=v9"
2272         ;;
2273     esac
2274
2275 elif enabled arm; then
2276
2277     case $cpu in
2278         armv*)
2279             cpuflags="-march=$cpu"
2280             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2281         ;;
2282         *)
2283             cpuflags="-mcpu=$cpu"
2284             case $cpu in
2285                 cortex-a*)                               subarch=armv7a  ;;
2286                 cortex-r*)                               subarch=armv7r  ;;
2287                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2288                 arm11*)                                  subarch=armv6   ;;
2289                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2290                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2291             esac
2292         ;;
2293     esac
2294
2295 elif enabled alpha; then
2296
2297     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2298
2299 elif enabled bfin; then
2300
2301     cpuflags="-mcpu=$cpu"
2302
2303 elif enabled mips; then
2304
2305     cpuflags="-march=$cpu"
2306
2307 elif enabled avr32; then
2308
2309     case $cpu in
2310         ap7[02]0[0-2])
2311             subarch="avr32_ap"
2312             cpuflags="-mpart=$cpu"
2313         ;;
2314         ap)
2315             subarch="avr32_ap"
2316             cpuflags="-march=$cpu"
2317         ;;
2318         uc3[ab]*)
2319             subarch="avr32_uc"
2320             cpuflags="-mcpu=$cpu"
2321         ;;
2322         uc)
2323             subarch="avr32_uc"
2324             cpuflags="-march=$cpu"
2325         ;;
2326     esac
2327
2328 fi
2329
2330 add_cflags $cpuflags
2331 add_asflags $cpuflags
2332
2333 # compiler sanity check
2334 check_exec <<EOF
2335 int main(void){ return 0; }
2336 EOF
2337 if test "$?" != 0; then
2338     echo "$cc is unable to create an executable file."
2339     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2340         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2341         echo "Only do this if you know what cross compiling means."
2342     fi
2343     die "C compiler test failed."
2344 fi
2345
2346 add_cppflags -D_ISOC99_SOURCE
2347 check_cflags -std=c99
2348 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2349 #include <stdlib.h>
2350 EOF
2351 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2352 #include <stdlib.h>
2353 EOF
2354
2355 check_host_cflags -std=c99
2356 check_host_cflags -Wall
2357
2358 case "$arch" in
2359     alpha|ia64|mips|parisc|sparc)
2360         spic=$shared
2361     ;;
2362     x86)
2363         subarch="x86_32"
2364         check_cc <<EOF && subarch="x86_64"
2365         int test[(int)sizeof(char*) - 7];
2366 EOF
2367         if test "$subarch" = "x86_64"; then
2368             spic=$shared
2369         fi
2370     ;;
2371 esac
2372
2373 enable $subarch
2374 enabled spic && enable pic
2375
2376 # OS specific
2377 case $target_os in
2378     haiku)
2379         prefix_default="/boot/common"
2380         network_extralibs="-lnetwork"
2381         host_libs=
2382         ;;
2383     sunos)
2384         AVSERVERLDFLAGS=""
2385         SHFLAGS='-shared -Wl,-h,$$(@F)'
2386         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2387         network_extralibs="-lsocket -lnsl"
2388         add_cppflags -D__EXTENSIONS__
2389         # When using suncc to build, the Solaris linker will mark
2390         # an executable with each instruction set encountered by
2391         # the Solaris assembler.  As our libraries contain their own
2392         # guards for processor-specific code, instead suppress
2393         # generation of the HWCAPS ELF section on Solaris x86 only.
2394         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2395         nm_opts='-P -g'
2396         ;;
2397     netbsd)
2398         disable symver
2399         oss_indev_extralibs="-lossaudio"
2400         oss_outdev_extralibs="-lossaudio"
2401         ;;
2402     openbsd)
2403         enable malloc_aligned
2404         # On OpenBSD 4.5. the compiler does not use PIC unless
2405         # explicitly using -fPIC. Libav builds fine without PIC,
2406         # however the generated executable will not do anything
2407         # (simply quits with exit-code 1, no crash, no output).
2408         # Thus explicitly enable PIC here.
2409         enable pic
2410         disable symver
2411         SHFLAGS='-shared'
2412         oss_indev_extralibs="-lossaudio"
2413         oss_outdev_extralibs="-lossaudio"
2414         ;;
2415     dragonfly)
2416         enable malloc_aligned
2417         disable symver
2418         ;;
2419     freebsd)
2420         enable malloc_aligned
2421         ;;
2422     bsd/os)
2423         add_extralibs -lpoll -lgnugetopt
2424         ;;
2425     darwin)
2426         enable malloc_aligned
2427         gas="gas-preprocessor.pl $cc"
2428         enabled ppc && add_asflags -force_cpusubtype_ALL
2429         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2430         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2431         add_ldflags -Wl,-dynamic,-search_paths_first
2432         SLIBSUF=".dylib"
2433         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2434         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2435         AVSERVERLDFLAGS=-Wl,-bind_at_load
2436         objformat="macho"
2437         enabled x86_64 && objformat="macho64"
2438         enabled_any pic shared ||
2439             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2440         ;;
2441     mingw32*)
2442         if test $target_os = "mingw32ce"; then
2443             disable network
2444         else
2445             target_os=mingw32
2446             enable_weak w32threads
2447         fi
2448         LIBTARGET=i386
2449         if enabled x86_64; then
2450             enable malloc_aligned
2451             LIBTARGET="i386:x86-64"
2452         elif enabled arm; then
2453             LIBTARGET=arm-wince
2454         fi
2455         shlibdir_default="$bindir_default"
2456         SLIBPREF=""
2457         SLIBSUF=".dll"
2458         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2459         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2460         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2461         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2462         SLIB_INSTALL_LINKS=
2463         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2464         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2465         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'
2466         objformat="win32"
2467         dlltool="${cross_prefix}dlltool"
2468         enable dos_paths
2469         check_cflags -fno-common
2470         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2471                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2472                 die "ERROR: MinGW runtime version must be >= 3.15."
2473         add_cppflags -U__STRICT_ANSI__
2474         ;;
2475     cygwin*)
2476         target_os=cygwin
2477         shlibdir_default="$bindir_default"
2478         SLIBPREF="cyg"
2479         SLIBSUF=".dll"
2480         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2481         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2482         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2483         objformat="win32"
2484         enable dos_paths
2485         check_cflags -fno-common
2486         add_cppflags -U__STRICT_ANSI__
2487         ;;
2488     *-dos|freedos|opendos)
2489         network_extralibs="-lsocket"
2490         objformat="coff"
2491         enable dos_paths
2492         add_cppflags -U__STRICT_ANSI__
2493         ;;
2494     linux)
2495         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2496         enable dv1394
2497         ;;
2498     irix*)
2499         target_os=irix
2500         ranlib="echo ignoring ranlib"
2501         ;;
2502     os/2*)
2503         ln_s="cp -f"
2504         objformat="aout"
2505         add_cppflags -D_GNU_SOURCE
2506         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2507         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2508         AVSERVERLDFLAGS=""
2509         LIBSUF="_s.a"
2510         SLIBPREF=""
2511         SLIBSUF=".dll"
2512         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2513         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2514         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2515           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2516           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2517           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2518           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2519           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2520         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2521           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2522         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2523         enable dos_paths
2524         ;;
2525     gnu/kfreebsd)
2526         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2527         ;;
2528     gnu)
2529         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2530         ;;
2531     qnx)
2532         add_cppflags -D_QNX_SOURCE
2533         network_extralibs="-lsocket"
2534         ;;
2535     symbian)
2536         SLIBSUF=".dll"
2537         enable dos_paths
2538         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2539         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2540         add_ldflags -Wl,--target1-abs,--no-undefined \
2541                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2542                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2543         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2544                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2545                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2546         ;;
2547     none)
2548         ;;
2549     *)
2550         die "Unknown OS '$target_os'."
2551         ;;
2552 esac
2553
2554 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2555
2556 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2557
2558 set_default $PATHS_LIST
2559
2560 # we need to build at least one lib type
2561 if ! enabled_any static shared; then
2562     cat <<EOF
2563 At least one library type must be built.
2564 Specify --enable-static to build the static libraries or --enable-shared to
2565 build the shared libraries as well. To only build the shared libraries specify
2566 --disable-static in addition to --enable-shared.
2567 EOF
2568     exit 1;
2569 fi
2570
2571 die_license_disabled() {
2572     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2573 }
2574
2575 die_license_disabled gpl libcdio
2576 die_license_disabled gpl libx264
2577 die_license_disabled gpl libxavs
2578 die_license_disabled gpl libxvid
2579 die_license_disabled gpl x11grab
2580
2581 die_license_disabled nonfree libfaac
2582 die_license_disabled nonfree openssl
2583
2584 die_license_disabled version3 libopencore_amrnb
2585 die_license_disabled version3 libopencore_amrwb
2586 die_license_disabled version3 libvo_aacenc
2587 die_license_disabled version3 libvo_amrwbenc
2588
2589 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2590
2591 disabled optimizations || check_cflags -fomit-frame-pointer
2592
2593 enable_pic() {
2594     enable pic
2595     add_cppflags -DPIC
2596     add_cflags   -fPIC
2597     add_asflags  -fPIC
2598 }
2599
2600 enabled pic && enable_pic
2601
2602 check_cc <<EOF || die "Symbol mangling check failed."
2603 int ff_extern;
2604 EOF
2605 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2606 extern_prefix=${sym%%ff_extern*}
2607
2608 check_cc <<EOF && enable inline_asm
2609 void foo(void) { __asm__ volatile ("" ::); }
2610 EOF
2611
2612 _restrict=
2613 for restrict_keyword in restrict __restrict__ __restrict; do
2614     check_cc <<EOF && _restrict=$restrict_keyword && break
2615 void foo(char * $restrict_keyword p);
2616 EOF
2617 done
2618
2619 check_cc <<EOF && enable attribute_packed
2620 struct { int x; } __attribute__((packed)) x;
2621 EOF
2622
2623 check_cc <<EOF && enable attribute_may_alias
2624 union { int x; } __attribute__((may_alias)) x;
2625 EOF
2626
2627 check_cc <<EOF || die "endian test failed"
2628 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2629 EOF
2630 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2631
2632 if enabled alpha; then
2633
2634     check_cflags -mieee
2635
2636 elif enabled arm; then
2637
2638     enabled thumb && check_cflags -mthumb || check_cflags -marm
2639     nogas=die
2640
2641     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2642         enable vfp_args
2643     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2644         case "${cross_prefix:-$cc}" in
2645             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2646             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2647 __asm__ (".eabi_attribute 28, 1");
2648 int main(void) { return 0; }
2649 EOF
2650         esac
2651         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2652     fi
2653
2654     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2655     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2656     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2657     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2658     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2659     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2660     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2661
2662     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2663
2664     enabled_all armv6t2 shared !pic && enable_pic
2665
2666 elif enabled mips; then
2667
2668     check_asm loongson '"dmult.g $1, $2, $3"'
2669     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2670
2671 elif enabled ppc; then
2672
2673     enable local_aligned_8 local_aligned_16
2674
2675     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2676     check_asm ibm_asm   '"add 0, 0, 0"'
2677     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2678     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2679
2680     # AltiVec flags: The FSF version of GCC differs from the Apple version
2681     if enabled altivec; then
2682         nogas=warn
2683         check_cflags -maltivec -mabi=altivec &&
2684         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2685         check_cflags -faltivec
2686
2687         # check if our compiler supports Motorola AltiVec C API
2688         check_cc <<EOF || disable altivec
2689 $inc_altivec_h
2690 int main(void) {
2691     vector signed int v1, v2, v3;
2692     v1 = vec_add(v2,v3);
2693     return 0;
2694 }
2695 EOF
2696
2697         # check if our compiler supports braces for vector declarations
2698         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2699 $inc_altivec_h
2700 int main (void) { (vector int) {1}; return 0; }
2701 EOF
2702     fi
2703
2704 elif enabled sparc; then
2705
2706     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2707         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2708
2709 elif enabled x86; then
2710
2711     enable local_aligned_8 local_aligned_16
2712
2713     # check whether EBP is available on x86
2714     # As 'i' is stored on the stack, this program will crash
2715     # if the base pointer is used to access it because the
2716     # base pointer is cleared in the inline assembly code.
2717     check_exec_crash <<EOF && enable ebp_available
2718     volatile int i=0;
2719     __asm__ volatile (
2720         "xorl %%ebp, %%ebp"
2721     ::: "%ebp");
2722     return i;
2723 EOF
2724
2725     # check whether EBX is available on x86
2726     check_asm ebx_available '""::"b"(0)' &&
2727         check_asm ebx_available '"":::"%ebx"'
2728
2729     # check whether xmm clobbers are supported
2730     check_asm xmm_clobbers '"":::"%xmm0"'
2731
2732     # check whether binutils is new enough to compile SSSE3/MMX2
2733     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2734     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2735
2736     check_asm bswap '"bswap %%eax" ::: "%eax"'
2737
2738     if ! disabled_any asm mmx yasm; then
2739         if check_cmd $yasmexe --version; then
2740             enabled x86_64 && yasm_extra="-m amd64"
2741             yasm_debug="-g dwarf2"
2742         elif check_cmd nasm -v; then
2743             yasmexe=nasm
2744             yasm_debug="-g -F dwarf"
2745             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2746         fi
2747
2748         YASMFLAGS="-f $objformat $yasm_extra"
2749         enabled pic               && append YASMFLAGS "-DPIC"
2750         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2751         case "$objformat" in
2752             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2753         esac
2754
2755         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2756             die "yasm not found, use --disable-yasm for a crippled build"
2757         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2758     fi
2759
2760     case "$cpu" in
2761         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2762             disable fast_clz
2763         ;;
2764     esac
2765
2766 fi
2767
2768 if enabled asm; then
2769     as=${gas:=$as}
2770     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2771         $nogas "GNU assembler not found, install gas-preprocessor"
2772 fi
2773
2774 check_ldflags -Wl,--as-needed
2775
2776 if check_func dlopen; then
2777     ldl=
2778 elif check_func dlopen -ldl; then
2779     ldl=-ldl
2780 fi
2781
2782 if enabled network; then
2783     check_type "sys/types.h sys/socket.h" socklen_t
2784     check_type netdb.h "struct addrinfo"
2785     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2786     check_type netinet/in.h "struct sockaddr_in6"
2787     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2788     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2789     # Prefer arpa/inet.h over winsock2
2790     if check_header arpa/inet.h ; then
2791         check_func closesocket
2792     elif check_header winsock2.h ; then
2793         check_func_headers winsock2.h closesocket -lws2 && \
2794             network_extralibs="-lws2" || \
2795         { check_func_headers winsock2.h closesocket -lws2_32 && \
2796             network_extralibs="-lws2_32"; }
2797         check_type ws2tcpip.h socklen_t
2798         check_type ws2tcpip.h "struct addrinfo"
2799         check_type ws2tcpip.h "struct ipv6_mreq"
2800         check_type ws2tcpip.h "struct sockaddr_in6"
2801         check_type ws2tcpip.h "struct sockaddr_storage"
2802         check_struct winsock2.h "struct sockaddr" sa_len
2803     else
2804         disable network
2805     fi
2806 fi
2807
2808 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2809 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2810
2811 check_func  fcntl
2812 check_func  fork
2813 check_func  getaddrinfo $network_extralibs
2814 check_func  gethrtime
2815 check_func  getrusage
2816 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2817 check_func  inet_aton $network_extralibs
2818 check_func  isatty
2819 check_func  localtime_r
2820 check_func  ${malloc_prefix}memalign            && enable memalign
2821 check_func  mkstemp
2822 check_func  mmap
2823 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2824 check_func  setrlimit
2825 check_func  strerror_r
2826 check_func  strptime
2827 check_func  strtok_r
2828 check_func_headers io.h setmode
2829 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2830 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2831 check_func_headers windows.h GetProcessTimes
2832 check_func_headers windows.h MapViewOfFile
2833 check_func_headers windows.h VirtualAlloc
2834
2835 check_header dlfcn.h
2836 check_header dxva2api.h
2837 check_header malloc.h
2838 check_header poll.h
2839 check_header sys/mman.h
2840 check_header sys/resource.h
2841 check_header sys/select.h
2842 check_header vdpau/vdpau.h
2843 check_header vdpau/vdpau_x11.h
2844 check_header X11/extensions/XvMClib.h
2845
2846 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2847
2848 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2849 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2850
2851 # check for some common methods of building with pthread support
2852 # do this before the optional library checks as some of them require pthreads
2853 if ! disabled pthreads && ! enabled w32threads; then
2854     enable pthreads
2855     if check_func pthread_create; then
2856         :
2857     elif check_func pthread_create -pthread; then
2858         add_cflags -pthread
2859         add_extralibs -pthread
2860     elif check_func pthread_create -pthreads; then
2861         add_cflags -pthreads
2862         add_extralibs -pthreads
2863     elif check_func pthread_create -lpthreadGC2; then
2864         add_extralibs -lpthreadGC2
2865     elif ! check_lib pthread.h pthread_create -lpthread; then
2866         disable pthreads
2867     fi
2868 fi
2869
2870 for thread in $THREADS_LIST; do
2871     if enabled $thread; then
2872         test -n "$thread_type" &&
2873             die "ERROR: Only one thread type must be selected." ||
2874             thread_type="$thread"
2875     fi
2876 done
2877
2878 check_lib math.h sin -lm && LIBM="-lm"
2879 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2880
2881 check_mathfunc exp2
2882 check_mathfunc exp2f
2883 check_mathfunc llrint
2884 check_mathfunc llrintf
2885 check_mathfunc log2
2886 check_mathfunc log2f
2887 check_mathfunc lrint
2888 check_mathfunc lrintf
2889 check_mathfunc round
2890 check_mathfunc roundf
2891 check_mathfunc trunc
2892 check_mathfunc truncf
2893
2894 # these are off by default, so fail if requested and not available
2895 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2896 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2897 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2898 enabled libdirac   && require_pkg_config dirac                          \
2899     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2900     "dirac_decoder_init dirac_encoder_init"
2901 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2902 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2903 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2904 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2905 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2906 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2907 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2908 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2909 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2910 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2911 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2912 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2913 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2914 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2915 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2916 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2917 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2918 enabled libvpx     && {
2919     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2920                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2921     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2922                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2923 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2924                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2925                         die "ERROR: libx264 version must be >= 0.118."; }
2926 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2927 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2928 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2929 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2930                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2931                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2932                         die "ERROR: openssl not found"; }
2933
2934 # libdc1394 check
2935 if enabled libdc1394; then
2936     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2937         enable libdc1394_2; } ||
2938     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2939         enable libdc1394_1; } ||
2940     die "ERROR: No version of libdc1394 found "
2941 fi
2942
2943 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2944     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2945     enable sdl &&
2946     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2947 fi
2948
2949 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2950
2951 check_header linux/fb.h
2952 check_header linux/videodev.h
2953 check_header linux/videodev2.h
2954 check_header sys/videoio.h
2955
2956 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2957 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2958 # w32api 3.12 had it defined wrong
2959 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2960
2961 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2962 { check_header dev/bktr/ioctl_meteor.h &&
2963   check_header dev/bktr/ioctl_bt848.h; } ||
2964 { check_header machine/ioctl_meteor.h &&
2965   check_header machine/ioctl_bt848.h; } ||
2966 { check_header dev/video/meteor/ioctl_meteor.h &&
2967   check_header dev/video/bktr/ioctl_bt848.h; } ||
2968 check_header dev/ic/bt8xx.h
2969
2970 check_header sndio.h
2971 check_header sys/soundcard.h
2972 check_header soundcard.h
2973
2974 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2975
2976 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2977
2978 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2979
2980 enabled libcdio &&
2981     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2982
2983 enabled x11grab                         &&
2984 check_header X11/Xlib.h                 &&
2985 check_header X11/extensions/XShm.h      &&
2986 check_header X11/extensions/Xfixes.h    &&
2987 check_func XOpenDisplay -lX11           &&
2988 check_func XShmCreateImage -lX11 -lXext &&
2989 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2990
2991 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2992 check_cpp_condition \
2993     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2994     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2995       disable vdpau; }
2996 fi
2997
2998 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2999
3000 # add some useful compiler flags if supported
3001 check_cflags -Wdeclaration-after-statement
3002 check_cflags -Wall
3003 check_cflags -Wno-parentheses
3004 check_cflags -Wno-switch
3005 check_cflags -Wno-format-zero-length
3006 check_cflags -Wdisabled-optimization
3007 check_cflags -Wpointer-arith
3008 check_cflags -Wredundant-decls
3009 check_cflags -Wno-pointer-sign
3010 check_cflags -Wcast-qual
3011 check_cflags -Wwrite-strings
3012 check_cflags -Wtype-limits
3013 check_cflags -Wundef
3014 check_cflags -Wmissing-prototypes
3015 check_cflags -Wstrict-prototypes
3016 enabled extra_warnings && check_cflags -Winline
3017
3018 # add some linker flags
3019 check_ldflags -Wl,--warn-common
3020 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3021 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3022
3023 echo "X{};" > $TMPV
3024 if test_ldflags -Wl,--version-script,$TMPV; then
3025     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3026     check_cc <<EOF && enable symver_asm_label
3027 void ff_foo(void) __asm__ ("av_foo@VERSION");
3028 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3029 EOF
3030     check_cc <<EOF && enable symver_gnu_asm
3031 __asm__(".symver ff_foo,av_foo@VERSION");
3032 void ff_foo(void) {}
3033 EOF
3034 fi
3035
3036 if [ -n "$optflags" ]; then
3037     add_cflags $optflags
3038 elif enabled small; then
3039     add_cflags $size_cflags
3040 elif enabled optimizations; then
3041     add_cflags $speed_cflags
3042 else
3043     add_cflags $noopt_cflags
3044 fi
3045 check_cflags -fno-math-errno
3046 check_cflags -fno-signed-zeros
3047
3048 if enabled icc; then
3049     # Just warnings, no remarks
3050     check_cflags -w1
3051     # -wd: Disable following warnings
3052     # 144, 167, 556: -Wno-pointer-sign
3053     # 1292: attribute "foo" ignored
3054     # 10006: ignoring unknown option -fno-signed-zeros
3055     # 10148: ignoring unknown option -Wno-parentheses
3056     # 10156: ignoring option '-W'; no argument required
3057     check_cflags -wd144,167,556,1292,10006,10148,10156
3058     # 11030: Warning unknown option --as-needed
3059     # 10156: ignoring option '-export'; no argument required
3060     check_ldflags -wd10156,11030
3061     # Allow to compile with optimizations
3062     check_ldflags -march=$cpu
3063     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3064     enable ebp_available
3065     if enabled x86_32; then
3066         test ${icc_version%%.*} -ge 11 && \
3067             check_cflags -falign-stack=maintain-16-byte || \
3068             disable aligned_stack
3069     fi
3070 elif enabled ccc; then
3071     # disable some annoying warnings
3072     add_cflags -msg_disable cvtu32to64
3073     add_cflags -msg_disable embedcomment
3074     add_cflags -msg_disable needconstext
3075     add_cflags -msg_disable nomainieee
3076     add_cflags -msg_disable ptrmismatch1
3077     add_cflags -msg_disable unreachcode
3078 elif enabled gcc; then
3079     check_cflags -fno-tree-vectorize
3080     check_cflags -Werror=implicit-function-declaration
3081     check_cflags -Werror=missing-prototypes
3082 elif enabled llvm_gcc; then
3083     check_cflags -mllvm -stack-alignment=16
3084 elif enabled clang; then
3085     check_cflags -mllvm -stack-alignment=16
3086     check_cflags -Qunused-arguments
3087 elif enabled armcc; then
3088     # 2523: use of inline assembler is deprecated
3089     add_cflags -W${armcc_opt},--diag_suppress=2523
3090     add_cflags -W${armcc_opt},--diag_suppress=1207
3091     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3092     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3093     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3094     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3095 elif enabled tms470; then
3096     add_cflags -pds=824 -pds=837
3097 elif enabled pathscale; then
3098     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3099 fi
3100
3101 enabled_any $THREADS_LIST      && enable threads
3102
3103 check_deps $CONFIG_LIST       \
3104            $CONFIG_EXTRA      \
3105            $HAVE_LIST         \
3106            $DECODER_LIST      \
3107            $ENCODER_LIST      \
3108            $HWACCEL_LIST      \
3109            $PARSER_LIST       \
3110            $BSF_LIST          \
3111            $DEMUXER_LIST      \
3112            $MUXER_LIST        \
3113            $FILTER_LIST       \
3114            $INDEV_LIST        \
3115            $OUTDEV_LIST       \
3116            $PROTOCOL_LIST     \
3117            $ACODEC_TESTS      \
3118            $VCODEC_TESTS      \
3119            $LAVF_TESTS        \
3120            $LAVFI_TESTS       \
3121            $SEEK_TESTS        \
3122
3123 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3124
3125 ! enabled_any memalign posix_memalign malloc_aligned &&
3126     enabled_any $need_memalign && enable memalign_hack
3127
3128 echo "install prefix            $prefix"
3129 echo "source path               $source_path"
3130 echo "C compiler                $cc"
3131 echo "ARCH                      $arch ($cpu)"
3132 if test "$build_suffix" != ""; then
3133     echo "build suffix              $build_suffix"
3134 fi
3135 if test "$extra_version" != ""; then
3136     echo "version string suffix     $extra_version"
3137 fi
3138 echo "big-endian                ${bigendian-no}"
3139 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3140 if enabled x86; then
3141     echo "${yasmexe}                      ${yasm-no}"
3142     echo "MMX enabled               ${mmx-no}"
3143     echo "MMX2 enabled              ${mmx2-no}"
3144     echo "3DNow! enabled            ${amd3dnow-no}"
3145     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3146     echo "SSE enabled               ${sse-no}"
3147     echo "SSSE3 enabled             ${ssse3-no}"
3148     echo "AVX enabled               ${avx-no}"
3149     echo "CMOV enabled              ${cmov-no}"
3150     echo "CMOV is fast              ${fast_cmov-no}"
3151     echo "EBX available             ${ebx_available-no}"
3152     echo "EBP available             ${ebp_available-no}"
3153 fi
3154 if enabled arm; then
3155     echo "ARMv5TE enabled           ${armv5te-no}"
3156     echo "ARMv6 enabled             ${armv6-no}"
3157     echo "ARMv6T2 enabled           ${armv6t2-no}"
3158     echo "ARM VFP enabled           ${armvfp-no}"
3159     echo "IWMMXT enabled            ${iwmmxt-no}"
3160     echo "NEON enabled              ${neon-no}"
3161 fi
3162 if enabled mips; then
3163     echo "MMI enabled               ${mmi-no}"
3164 fi
3165 if enabled ppc; then
3166     echo "AltiVec enabled           ${altivec-no}"
3167     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3168     echo "dcbzl available           ${dcbzl-no}"
3169 fi
3170 if enabled sparc; then
3171     echo "VIS enabled               ${vis-no}"
3172 fi
3173 echo "debug symbols             ${debug-no}"
3174 echo "optimize for size         ${small-no}"
3175 echo "optimizations             ${optimizations-no}"
3176 echo "static                    ${static-no}"
3177 echo "shared                    ${shared-no}"
3178 echo "postprocessing support    ${postproc-no}"
3179 echo "new filter support        ${avfilter-no}"
3180 echo "network support           ${network-no}"
3181 echo "threading support         ${thread_type-no}"
3182 echo "SDL support               ${sdl-no}"
3183 echo "Sun medialib support      ${mlib-no}"
3184 echo "libdxva2 enabled          ${dxva2-no}"
3185 echo "libva enabled             ${vaapi-no}"
3186 echo "libvdpau enabled          ${vdpau-no}"
3187 echo "AVISynth enabled          ${avisynth-no}"
3188 echo "frei0r enabled            ${frei0r-no}"
3189 echo "gnutls enabled            ${gnutls-no}"
3190 echo "libcdio support           ${libcdio-no}"
3191 echo "libdc1394 support         ${libdc1394-no}"
3192 echo "libdirac enabled          ${libdirac-no}"
3193 echo "libfaac enabled           ${libfaac-no}"
3194 echo "libgsm enabled            ${libgsm-no}"
3195 echo "libmp3lame enabled        ${libmp3lame-no}"
3196 echo "libnut enabled            ${libnut-no}"
3197 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3198 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3199 echo "libopencv support         ${libopencv-no}"
3200 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3201 echo "libpulse enabled          ${libpulse-no}"
3202 echo "librtmp enabled           ${librtmp-no}"
3203 echo "libschroedinger enabled   ${libschroedinger-no}"
3204 echo "libspeex enabled          ${libspeex-no}"
3205 echo "libtheora enabled         ${libtheora-no}"
3206 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3207 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3208 echo "libvorbis enabled         ${libvorbis-no}"
3209 echo "libvpx enabled            ${libvpx-no}"
3210 echo "libx264 enabled           ${libx264-no}"
3211 echo "libxavs enabled           ${libxavs-no}"
3212 echo "libxvid enabled           ${libxvid-no}"
3213 echo "openssl enabled           ${openssl-no}"
3214 echo "zlib enabled              ${zlib-no}"
3215 echo "bzlib enabled             ${bzlib-no}"
3216 echo
3217
3218 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3219     echo "Enabled ${type}s:"
3220     eval list=\$$(toupper $type)_LIST
3221     print_enabled '_*' $list | sort | pr -r -3 -t
3222     echo
3223 done
3224
3225 license="LGPL version 2.1 or later"
3226 if enabled nonfree; then
3227     license="nonfree and unredistributable"
3228 elif enabled gplv3; then
3229     license="GPL version 3 or later"
3230 elif enabled lgplv3; then
3231     license="LGPL version 3 or later"
3232 elif enabled gpl; then
3233     license="GPL version 2 or later"
3234 fi
3235
3236 echo "License: $license"
3237
3238 echo "Creating config.mak and config.h..."
3239
3240 test -e Makefile || $ln_s "$source_path/Makefile" .
3241
3242 config_files="$TMPH config.mak"
3243
3244 cat > config.mak <<EOF
3245 # Automatically generated by configure - do not modify!
3246 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3247 prefix=$prefix
3248 LIBDIR=\$(DESTDIR)$libdir
3249 SHLIBDIR=\$(DESTDIR)$shlibdir
3250 INCDIR=\$(DESTDIR)$incdir
3251 BINDIR=\$(DESTDIR)$bindir
3252 DATADIR=\$(DESTDIR)$datadir
3253 MANDIR=\$(DESTDIR)$mandir
3254 SRC_PATH=$source_path
3255 CC_IDENT=$cc_ident
3256 ARCH=$arch
3257 CC=$cc
3258 AS=$as
3259 LD=$ld
3260 DEPCC=$dep_cc
3261 YASM=$yasmexe
3262 YASMDEP=$yasmexe
3263 AR=$ar
3264 RANLIB=$ranlib
3265 LN_S=$ln_s
3266 CPPFLAGS=$CPPFLAGS
3267 CFLAGS=$CFLAGS
3268 ASFLAGS=$ASFLAGS
3269 AS_O=$CC_O
3270 CC_O=$CC_O
3271 DLLTOOL=$dlltool
3272 LDFLAGS=$LDFLAGS
3273 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3274 SHFLAGS=$SHFLAGS
3275 YASMFLAGS=$YASMFLAGS
3276 BUILDSUF=$build_suffix
3277 FULLNAME=$FULLNAME
3278 LIBPREF=$LIBPREF
3279 LIBSUF=$LIBSUF
3280 LIBNAME=$LIBNAME
3281 SLIBPREF=$SLIBPREF
3282 SLIBSUF=$SLIBSUF
3283 EXESUF=$EXESUF
3284 EXTRA_VERSION=$extra_version
3285 DEPFLAGS=$DEPFLAGS
3286 CCDEP=$CCDEP
3287 ASDEP=$ASDEP
3288 CC_DEPFLAGS=$CC_DEPFLAGS
3289 AS_DEPFLAGS=$AS_DEPFLAGS
3290 HOSTCC=$host_cc
3291 HOSTCFLAGS=$host_cflags
3292 HOSTEXESUF=$HOSTEXESUF
3293 HOSTLDFLAGS=$host_ldflags
3294 HOSTLIBS=$host_libs
3295 TARGET_EXEC=$target_exec
3296 TARGET_PATH=$target_path
3297 SDL_LIBS=$sdl_libs
3298 SDL_CFLAGS=$sdl_cflags
3299 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3300 EXTRALIBS=$extralibs
3301 INSTALL=install
3302 LIBTARGET=${LIBTARGET}
3303 SLIBNAME=${SLIBNAME}
3304 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3305 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3306 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3307 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3308 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3309 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3310 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3311 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3312 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3313 EOF
3314
3315 get_version(){
3316     name=$1
3317     file=$source_path/$2
3318     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3319     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3320     lcname=$(tolower $name)
3321     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3322     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3323 }
3324
3325 get_version LIBSWSCALE  libswscale/swscale.h
3326 get_version LIBPOSTPROC libpostproc/postprocess.h
3327 get_version LIBAVCODEC  libavcodec/version.h
3328 get_version LIBAVDEVICE libavdevice/avdevice.h
3329 get_version LIBAVFORMAT libavformat/version.h
3330 get_version LIBAVUTIL   libavutil/avutil.h
3331 get_version LIBAVFILTER libavfilter/avfilter.h
3332
3333 cat > $TMPH <<EOF
3334 /* Automatically generated by configure - do not modify! */
3335 #ifndef LIBAV_CONFIG_H
3336 #define LIBAV_CONFIG_H
3337 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3338 #define LIBAV_LICENSE "$(c_escape $license)"
3339 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3340 #define CC_TYPE "$cc_type"
3341 #define CC_VERSION $cc_version
3342 #define restrict $_restrict
3343 #define EXTERN_PREFIX "${extern_prefix}"
3344 #define EXTERN_ASM ${extern_prefix}
3345 #define SLIBSUF "$SLIBSUF"
3346 EOF
3347
3348 test -n "$malloc_prefix" &&
3349     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3350
3351 if enabled small || disabled optimizations; then
3352     echo "#undef  av_always_inline"  >> $TMPH
3353     if enabled small; then
3354         echo "#define av_always_inline inline"  >> $TMPH
3355     else
3356         echo "#define av_always_inline av_unused"  >> $TMPH
3357     fi
3358 fi
3359
3360 if enabled yasm; then
3361     append config_files $TMPASM
3362     printf '' >$TMPASM
3363 fi
3364
3365 print_config ARCH_   "$config_files" $ARCH_LIST
3366 print_config HAVE_   "$config_files" $HAVE_LIST
3367 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3368                                      $CONFIG_EXTRA      \
3369                                      $DECODER_LIST      \
3370                                      $ENCODER_LIST      \
3371                                      $HWACCEL_LIST      \
3372                                      $PARSER_LIST       \
3373                                      $BSF_LIST          \
3374                                      $DEMUXER_LIST      \
3375                                      $MUXER_LIST        \
3376                                      $FILTER_LIST       \
3377                                      $PROTOCOL_LIST     \
3378                                      $INDEV_LIST        \
3379                                      $OUTDEV_LIST       \
3380
3381 cat >>config.mak <<EOF
3382 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3383 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3384 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3385 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3386 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3387 EOF
3388
3389 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3390
3391 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3392 cp_if_changed $TMPH config.h
3393 touch .config
3394
3395 enabled yasm && cp_if_changed $TMPASM config.asm
3396
3397 cat > $TMPH <<EOF
3398 /* Generated by ffconf */
3399 #ifndef AVUTIL_AVCONFIG_H
3400 #define AVUTIL_AVCONFIG_H
3401 EOF
3402
3403 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3404
3405 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3406
3407 cp_if_changed $TMPH libavutil/avconfig.h
3408
3409 test -n "$WARNINGS" && printf "\n$WARNINGS"
3410
3411 # build pkg-config files
3412
3413 pkgconfig_generate(){
3414 name=$1
3415 shortname=${name#lib}${build_suffix}
3416 comment=$2
3417 version=$3
3418 libs=$4
3419 requires=$5
3420 enabled ${name#lib} || return 0
3421 mkdir -p $name
3422 cat <<EOF > $name/$name.pc
3423 prefix=$prefix
3424 exec_prefix=\${prefix}
3425 libdir=$libdir
3426 includedir=$incdir
3427
3428 Name: $name
3429 Description: $comment
3430 Version: $version
3431 Requires: $(enabled shared || echo $requires)
3432 Requires.private: $(enabled shared && echo $requires)
3433 Conflicts:
3434 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3435 Libs.private: $(enabled shared && echo $libs)
3436 Cflags: -I\${includedir}
3437 EOF
3438 cat <<EOF > $name/$name-uninstalled.pc
3439 prefix=
3440 exec_prefix=
3441 libdir=\${pcfiledir}
3442 includedir=${source_path}
3443
3444 Name: $name
3445 Description: $comment
3446 Version: $version
3447 Requires: $requires
3448 Conflicts:
3449 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3450 Cflags: -I\${includedir}
3451 EOF
3452 }
3453
3454 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3455 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3456 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3457 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3458 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3459 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3460 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"