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/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-frei0r          enable frei0r video filtering
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libopencv       enable video filtering via libopencv [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libfreetype     enable libfreetype [no]
 172   --enable-libgsm          enable GSM support via libgsm [no]
 173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 174   --enable-libnut          enable NUT (de)muxing via libnut,
 175                            native (de)muxer exists [no]
 176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 179   --enable-libspeex        enable Speex decoding via libspeex [no]
 180   --enable-libtheora       enable Theora encoding via libtheora [no]
 181   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libvpx          enable VP8 support via libvpx [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxavs         enable AVS encoding via xavs [no]
 188   --enable-libxvid         enable Xvid encoding via xvidcore,
 189                            native MPEG-4/Xvid encoder exists [no]
 190   --enable-mlib            enable Sun medialib [no]
 191   --enable-zlib            enable zlib [autodetect]
 192
 193 Advanced options (experts only):
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-avx            disable AVX optimizations
 227   --disable-armv5te        disable armv5te optimizations
 228   --disable-armv6          disable armv6 optimizations
 229   --disable-armv6t2        disable armv6t2 optimizations
 230   --disable-armvfp         disable ARM VFP optimizations
 231   --disable-iwmmxt         disable iwmmxt optimizations
 232   --disable-mmi            disable MMI optimizations
 233   --disable-neon           disable neon optimizations
 234   --disable-vis            disable VIS optimizations
 235   --disable-yasm           disable use of yasm assembler
 236   --enable-pic             build position-independent code
 237   --malloc-prefix=PFX      prefix malloc and related names with PFX
 238   --enable-sram            allow use of on-chip SRAM
 239   --disable-symver         disable symbol versioning
 240   --optflags               override optimization-related compiler flags
 241
 242 Developer options (useful when working on Libav itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" &&
 879         echo "$2 is unchanged" ||
 880         cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     avcodec
 905     avdevice
 906     avfilter
 907     avformat
 908     avisynth
 909     bzlib
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     ffplay
 917     ffprobe
 918     ffserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     libfreetype
 932     libgsm
 933     libmp3lame
 934     libnut
 935     libopencore_amrnb
 936     libopencore_amrwb
 937     libopencv
 938     libopenjpeg
 939     librtmp
 940     libschroedinger
 941     libspeex
 942     libtheora
 943     libvo_aacenc
 944     libvo_amrwbenc
 945     libvorbis
 946     libvpx
 947     libx264
 948     libxavs
 949     libxvid
 950     lpc
 951     lsp
 952     mdct
 953     memalign_hack
 954     mlib
 955     mpegaudiodsp
 956     network
 957     nonfree
 958     pic
 959     postproc
 960     rdft
 961     rtpdec
 962     runtime_cpudetect
 963     shared
 964     sinewin
 965     small
 966     sram
 967     static
 968     swscale
 969     swscale_alpha
 970     thumb
 971     vaapi
 972     vdpau
 973     version3
 974     x11grab
 975     zlib
 976 "
 977
 978 THREADS_LIST='
 979     pthreads
 980     w32threads
 981 '
 982
 983 ARCH_LIST='
 984     alpha
 985     arm
 986     avr32
 987     avr32_ap
 988     avr32_uc
 989     bfin
 990     ia64
 991     m68k
 992     mips
 993     mips64
 994     parisc
 995     ppc
 996     ppc64
 997     s390
 998     sh4
 999     sparc
1000     sparc64
1001     tomi
1002     x86
1003     x86_32
1004     x86_64
1005 '
1006
1007 ARCH_EXT_LIST='
1008     altivec
1009     amd3dnow
1010     amd3dnowext
1011     armv5te
1012     armv6
1013     armv6t2
1014     armvfp
1015     avx
1016     iwmmxt
1017     mmi
1018     mmx
1019     mmx2
1020     neon
1021     ppc4xx
1022     sse
1023     ssse3
1024     vfpv3
1025     vis
1026 '
1027
1028 HAVE_LIST_PUB='
1029     bigendian
1030     fast_unaligned
1031 '
1032
1033 HAVE_LIST="
1034     $ARCH_EXT_LIST
1035     $HAVE_LIST_PUB
1036     $THREADS_LIST
1037     aligned_stack
1038     alsa_asoundlib_h
1039     altivec_h
1040     arpa_inet_h
1041     attribute_may_alias
1042     attribute_packed
1043     bswap
1044     closesocket
1045     cmov
1046     dcbzl
1047     dev_bktr_ioctl_bt848_h
1048     dev_bktr_ioctl_meteor_h
1049     dev_ic_bt8xx_h
1050     dev_video_meteor_ioctl_meteor_h
1051     dev_video_bktr_ioctl_bt848_h
1052     dlfcn_h
1053     dlopen
1054     dos_paths
1055     ebp_available
1056     ebx_available
1057     exp2
1058     exp2f
1059     fast_64bit
1060     fast_clz
1061     fast_cmov
1062     fcntl
1063     fork
1064     getaddrinfo
1065     gethrtime
1066     GetProcessMemoryInfo
1067     GetProcessTimes
1068     getrusage
1069     gnu_as
1070     struct_rusage_ru_maxrss
1071     ibm_asm
1072     inet_aton
1073     inline_asm
1074     isatty
1075     ldbrx
1076     libdc1394_1
1077     libdc1394_2
1078     llrint
1079     llrintf
1080     local_aligned_16
1081     local_aligned_8
1082     localtime_r
1083     log2
1084     log2f
1085     loongson
1086     lrint
1087     lrintf
1088     lzo1x_999_compress
1089     machine_ioctl_bt848_h
1090     machine_ioctl_meteor_h
1091     malloc_h
1092     MapViewOfFile
1093     memalign
1094     mkstemp
1095     mmap
1096     pld
1097     posix_memalign
1098     round
1099     roundf
1100     sdl
1101     sdl_video_size
1102     setmode
1103     sndio_h
1104     socklen_t
1105     soundcard_h
1106     poll_h
1107     setrlimit
1108     strerror_r
1109     strtok_r
1110     struct_addrinfo
1111     struct_ipv6_mreq
1112     struct_sockaddr_in6
1113     struct_sockaddr_sa_len
1114     struct_sockaddr_storage
1115     symver
1116     symver_gnu_asm
1117     symver_asm_label
1118     sys_mman_h
1119     sys_resource_h
1120     sys_select_h
1121     sys_soundcard_h
1122     sys_videoio_h
1123     ten_operands
1124     threads
1125     trunc
1126     truncf
1127     vfp_args
1128     VirtualAlloc
1129     winsock2_h
1130     xform_asm
1131     xmm_clobbers
1132     yasm
1133 "
1134
1135 # options emitted with CONFIG_ prefix but not available on command line
1136 CONFIG_EXTRA="
1137     avutil
1138     gplv3
1139     lgplv3
1140 "
1141
1142 CMDLINE_SELECT="
1143     $ARCH_EXT_LIST
1144     $CONFIG_LIST
1145     $THREADS_LIST
1146     asm
1147     cross_compile
1148     debug
1149     extra_warnings
1150     logging
1151     optimizations
1152     symver
1153     yasm
1154 "
1155
1156 PATHS_LIST='
1157     bindir
1158     datadir
1159     incdir
1160     libdir
1161     mandir
1162     prefix
1163     shlibdir
1164 '
1165
1166 CMDLINE_SET="
1167     $PATHS_LIST
1168     ar
1169     arch
1170     as
1171     build_suffix
1172     cc
1173     cpu
1174     cross_prefix
1175     dep_cc
1176     extra_version
1177     host_cc
1178     host_cflags
1179     host_ldflags
1180     host_libs
1181     host_os
1182     ld
1183     logfile
1184     malloc_prefix
1185     nm
1186     optflags
1187     pkg_config
1188     samples
1189     sysinclude
1190     sysroot
1191     target_exec
1192     target_os
1193     target_path
1194 "
1195
1196 CMDLINE_APPEND="
1197     extra_cflags
1198 "
1199
1200 # code dependency declarations
1201
1202 # architecture extensions
1203
1204 armv5te_deps="arm"
1205 armv6_deps="arm"
1206 armv6t2_deps="arm"
1207 armvfp_deps="arm"
1208 iwmmxt_deps="arm"
1209 neon_deps="arm"
1210 vfpv3_deps="armvfp"
1211
1212 mmi_deps="mips"
1213
1214 altivec_deps="ppc"
1215 ppc4xx_deps="ppc"
1216
1217 vis_deps="sparc"
1218
1219 x86_64_suggest="cmov fast_cmov"
1220 amd3dnow_deps="mmx"
1221 amd3dnowext_deps="amd3dnow"
1222 mmx_deps="x86"
1223 mmx2_deps="mmx"
1224 sse_deps="mmx"
1225 ssse3_deps="sse"
1226 avx_deps="ssse3"
1227
1228 aligned_stack_if_any="ppc x86"
1229 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1230 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1231 fast_unaligned_if_any="armv6 ppc x86"
1232
1233 need_memalign="altivec neon sse"
1234 inline_asm_deps="!tms470"
1235
1236 symver_if_any="symver_asm_label symver_gnu_asm"
1237
1238 # subsystems
1239 dct_select="rdft"
1240 mdct_select="fft"
1241 rdft_select="fft"
1242 mpegaudiodsp_select="dct"
1243
1244 # decoders / encoders / hardware accelerators
1245 aac_decoder_select="mdct sinewin"
1246 aac_encoder_select="mdct sinewin"
1247 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1248 ac3_decoder_select="mdct ac3dsp ac3_parser"
1249 ac3_encoder_select="mdct ac3dsp"
1250 ac3_fixed_encoder_select="mdct ac3dsp"
1251 alac_encoder_select="lpc"
1252 amrnb_decoder_select="lsp"
1253 amrwb_decoder_select="lsp"
1254 atrac1_decoder_select="mdct sinewin"
1255 atrac3_decoder_select="mdct"
1256 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1257 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1258 cavs_decoder_select="golomb"
1259 cook_decoder_select="mdct sinewin"
1260 cscd_decoder_suggest="zlib"
1261 dca_decoder_select="mdct"
1262 dnxhd_encoder_select="aandct"
1263 dxa_decoder_select="zlib"
1264 eac3_decoder_select="ac3_decoder"
1265 eac3_encoder_select="mdct ac3dsp"
1266 eamad_decoder_select="aandct"
1267 eatgq_decoder_select="aandct"
1268 eatqi_decoder_select="aandct"
1269 ffv1_decoder_select="golomb"
1270 flac_decoder_select="golomb"
1271 flac_encoder_select="golomb lpc"
1272 flashsv_decoder_select="zlib"
1273 flashsv_encoder_select="zlib"
1274 flv_decoder_select="h263_decoder"
1275 flv_encoder_select="h263_encoder"
1276 fraps_decoder_select="huffman"
1277 h261_encoder_select="aandct"
1278 h263_decoder_select="h263_parser"
1279 h263_encoder_select="aandct"
1280 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1281 h263i_decoder_select="h263_decoder"
1282 h263p_encoder_select="h263_encoder"
1283 h264_decoder_select="golomb h264dsp h264pred"
1284 h264_dxva2_hwaccel_deps="dxva2api_h"
1285 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1286 h264_vaapi_hwaccel_select="vaapi"
1287 h264_vdpau_decoder_select="vdpau h264_decoder"
1288 imc_decoder_select="fft mdct sinewin"
1289 jpegls_decoder_select="golomb"
1290 jpegls_encoder_select="golomb"
1291 ljpeg_encoder_select="aandct"
1292 loco_decoder_select="golomb"
1293 mjpeg_encoder_select="aandct"
1294 mlp_decoder_select="mlp_parser"
1295 mp1_decoder_select="mpegaudiodsp"
1296 mp2_decoder_select="mpegaudiodsp"
1297 mp3adu_decoder_select="mpegaudiodsp"
1298 mp3_decoder_select="mpegaudiodsp"
1299 mp3on4_decoder_select="mpegaudiodsp"
1300 mp1float_decoder_select="mpegaudiodsp"
1301 mp2float_decoder_select="mpegaudiodsp"
1302 mp3adufloat_decoder_select="mpegaudiodsp"
1303 mp3float_decoder_select="mpegaudiodsp"
1304 mp3on4float_decoder_select="mpegaudiodsp"
1305 mpeg1video_encoder_select="aandct"
1306 mpeg2video_encoder_select="aandct"
1307 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1308 mpeg4_encoder_select="h263_encoder"
1309 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1310 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1311 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1312 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1313 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1314 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1315 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1316 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1317 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1318 msmpeg4v1_decoder_select="h263_decoder"
1319 msmpeg4v1_encoder_select="h263_encoder"
1320 msmpeg4v2_decoder_select="h263_decoder"
1321 msmpeg4v2_encoder_select="h263_encoder"
1322 msmpeg4v3_decoder_select="h263_decoder"
1323 msmpeg4v3_encoder_select="h263_encoder"
1324 nellymoser_decoder_select="mdct sinewin"
1325 nellymoser_encoder_select="mdct sinewin"
1326 png_decoder_select="zlib"
1327 png_encoder_select="zlib"
1328 qcelp_decoder_select="lsp"
1329 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1330 ra_144_encoder_select="lpc"
1331 rv10_decoder_select="h263_decoder"
1332 rv10_encoder_select="h263_encoder"
1333 rv20_decoder_select="h263_decoder"
1334 rv20_encoder_select="h263_encoder"
1335 rv30_decoder_select="golomb h264pred"
1336 rv40_decoder_select="golomb h264pred"
1337 shorten_decoder_select="golomb"
1338 sipr_decoder_select="lsp"
1339 snow_decoder_select="dwt"
1340 snow_encoder_select="aandct dwt"
1341 svq1_encoder_select="aandct"
1342 svq3_decoder_select="golomb h264dsp h264pred"
1343 svq3_decoder_suggest="zlib"
1344 theora_decoder_select="vp3_decoder"
1345 tiff_decoder_suggest="zlib"
1346 tiff_encoder_suggest="zlib"
1347 truehd_decoder_select="mlp_decoder"
1348 tscc_decoder_select="zlib"
1349 twinvq_decoder_select="mdct lsp sinewin"
1350 vc1_decoder_select="h263_decoder"
1351 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1352 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1353 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1354 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1355 vorbis_decoder_select="mdct"
1356 vorbis_encoder_select="mdct"
1357 vp6_decoder_select="huffman"
1358 vp6a_decoder_select="vp6_decoder"
1359 vp6f_decoder_select="vp6_decoder"
1360 vp8_decoder_select="h264pred"
1361 wmapro_decoder_select="mdct sinewin"
1362 wmav1_decoder_select="mdct sinewin"
1363 wmav1_encoder_select="mdct sinewin"
1364 wmav2_decoder_select="mdct sinewin"
1365 wmav2_encoder_select="mdct sinewin"
1366 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1367 wmv1_decoder_select="h263_decoder"
1368 wmv1_encoder_select="h263_encoder"
1369 wmv2_decoder_select="h263_decoder"
1370 wmv2_encoder_select="h263_encoder"
1371 wmv3_decoder_select="vc1_decoder"
1372 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1373 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1374 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1375 zlib_decoder_select="zlib"
1376 zlib_encoder_select="zlib"
1377 zmbv_decoder_select="zlib"
1378 zmbv_encoder_select="zlib"
1379
1380 vaapi_deps="va_va_h"
1381 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1382
1383 # parsers
1384 h264_parser_select="golomb h264dsp h264pred"
1385
1386 # external libraries
1387 libdirac_decoder_deps="libdirac !libschroedinger"
1388 libdirac_encoder_deps="libdirac"
1389 libfaac_encoder_deps="libfaac"
1390 libgsm_decoder_deps="libgsm"
1391 libgsm_encoder_deps="libgsm"
1392 libgsm_ms_decoder_deps="libgsm"
1393 libgsm_ms_encoder_deps="libgsm"
1394 libmp3lame_encoder_deps="libmp3lame"
1395 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1396 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1397 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1398 libopenjpeg_decoder_deps="libopenjpeg"
1399 libschroedinger_decoder_deps="libschroedinger"
1400 libschroedinger_encoder_deps="libschroedinger"
1401 libspeex_decoder_deps="libspeex"
1402 libtheora_encoder_deps="libtheora"
1403 libvo_aacenc_encoder_deps="libvo_aacenc"
1404 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1405 libvorbis_encoder_deps="libvorbis"
1406 libvpx_decoder_deps="libvpx"
1407 libvpx_encoder_deps="libvpx"
1408 libx264_encoder_deps="libx264"
1409 libxavs_encoder_deps="libxavs"
1410 libxvid_encoder_deps="libxvid"
1411
1412 # demuxers / muxers
1413 ac3_demuxer_select="ac3_parser"
1414 asf_stream_muxer_select="asf_muxer"
1415 avisynth_demuxer_deps="avisynth"
1416 dirac_demuxer_select="dirac_parser"
1417 eac3_demuxer_select="ac3_parser"
1418 flac_demuxer_select="flac_parser"
1419 ipod_muxer_select="mov_muxer"
1420 libnut_demuxer_deps="libnut"
1421 libnut_muxer_deps="libnut"
1422 matroska_audio_muxer_select="matroska_muxer"
1423 matroska_demuxer_suggest="zlib bzlib"
1424 mov_demuxer_suggest="zlib"
1425 mp3_demuxer_select="mpegaudio_parser"
1426 mp4_muxer_select="mov_muxer"
1427 mpegtsraw_demuxer_select="mpegts_demuxer"
1428 mxf_d10_muxer_select="mxf_muxer"
1429 ogg_demuxer_select="golomb"
1430 psp_muxer_select="mov_muxer"
1431 rtp_demuxer_select="sdp_demuxer"
1432 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1433 rtsp_demuxer_select="http_protocol rtpdec"
1434 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1435 sap_demuxer_select="sdp_demuxer"
1436 sap_muxer_select="rtp_muxer rtp_protocol"
1437 sdp_demuxer_select="rtpdec"
1438 spdif_muxer_select="aac_parser"
1439 tg2_muxer_select="mov_muxer"
1440 tgp_muxer_select="mov_muxer"
1441 w64_demuxer_deps="wav_demuxer"
1442
1443 # indevs / outdevs
1444 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1445 alsa_outdev_deps="alsa_asoundlib_h"
1446 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1447 dv1394_indev_deps="dv1394 dv_demuxer"
1448 fbdev_indev_deps="linux_fb_h"
1449 jack_indev_deps="jack_jack_h"
1450 libdc1394_indev_deps="libdc1394"
1451 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1452 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1453 sndio_indev_deps="sndio_h"
1454 sndio_outdev_deps="sndio_h"
1455 v4l_indev_deps="linux_videodev_h"
1456 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1457 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1458 vfwcap_indev_extralibs="-lavicap32"
1459 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1460 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1461
1462 # protocols
1463 gopher_protocol_deps="network"
1464 http_protocol_deps="network"
1465 http_protocol_select="tcp_protocol"
1466 mmsh_protocol_select="http_protocol"
1467 mmst_protocol_deps="network"
1468 rtmp_protocol_select="tcp_protocol"
1469 rtp_protocol_select="udp_protocol"
1470 tcp_protocol_deps="network"
1471 udp_protocol_deps="network"
1472
1473 # filters
1474 blackframe_filter_deps="gpl"
1475 cropdetect_filter_deps="gpl"
1476 drawtext_filter_deps="libfreetype"
1477 frei0r_filter_deps="frei0r dlopen strtok_r"
1478 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1479 hqdn3d_filter_deps="gpl"
1480 ocv_filter_deps="libopencv"
1481 scale_filter_deps="swscale"
1482 yadif_filter_deps="gpl"
1483
1484 # libraries
1485 avdevice_deps="avcodec avformat"
1486 avformat_deps="avcodec"
1487 postproc_deps="gpl"
1488
1489 # programs
1490 ffmpeg_deps="avcodec avformat swscale"
1491 ffmpeg_select="buffer_filter"
1492 ffplay_deps="avcodec avformat swscale sdl"
1493 ffplay_select="rdft"
1494 ffprobe_deps="avcodec avformat"
1495 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1496 ffserver_extralibs='$ldl'
1497
1498 doc_deps="texi2html"
1499
1500 # tests
1501
1502 test_deps(){
1503     suf1=$1
1504     suf2=$2
1505     shift 2
1506     for v; do
1507         dep=${v%=*}
1508         tests=${v#*=}
1509         for name in ${tests}; do
1510             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1511         done
1512     done
1513 }
1514
1515 set_ne_test_deps(){
1516     eval ${1}_be_test_deps="bigendian"
1517     eval ${1}_le_test_deps="!bigendian"
1518 }
1519
1520 test_deps _encoder _decoder                                             \
1521     adpcm_g726=g726                                                     \
1522     adpcm_ima_qt                                                        \
1523     adpcm_ima_wav                                                       \
1524     adpcm_ms                                                            \
1525     adpcm_swf                                                           \
1526     adpcm_yamaha=adpcm_yam                                              \
1527     alac                                                                \
1528     asv1                                                                \
1529     asv2                                                                \
1530     bmp                                                                 \
1531     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1532     dvvideo="dv dv50"                                                   \
1533     ffv1                                                                \
1534     flac                                                                \
1535     flashsv                                                             \
1536     flv                                                                 \
1537     gif                                                                 \
1538     h261                                                                \
1539     h263="h263 h263p"                                                   \
1540     huffyuv                                                             \
1541     jpegls                                                              \
1542     mjpeg="jpg mjpeg ljpeg"                                             \
1543     mp2                                                                 \
1544     mpeg1video="mpeg mpeg1b"                                            \
1545     mpeg2video="mpeg2 mpeg2thread"                                      \
1546     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1547     msmpeg4v3=msmpeg4                                                   \
1548     msmpeg4v2                                                           \
1549     pbm=pbmpipe                                                         \
1550     pcx                                                                 \
1551     pgm="pgm pgmpipe"                                                   \
1552     png                                                                 \
1553     ppm="ppm ppmpipe"                                                   \
1554     rawvideo="rgb yuv"                                                  \
1555     roq                                                                 \
1556     rv10                                                                \
1557     rv20                                                                \
1558     sgi                                                                 \
1559     snow="snow snowll"                                                  \
1560     svq1                                                                \
1561     targa=tga                                                           \
1562     tiff                                                                \
1563     wmav1                                                               \
1564     wmav2                                                               \
1565     wmv1                                                                \
1566     wmv2                                                                \
1567
1568 test_deps _muxer _demuxer                                               \
1569     aiff                                                                \
1570     pcm_alaw=alaw                                                       \
1571     asf                                                                 \
1572     au                                                                  \
1573     avi                                                                 \
1574     dv=dv_fmt                                                           \
1575     ffm                                                                 \
1576     flv=flv_fmt                                                         \
1577     gxf                                                                 \
1578     matroska=mkv                                                        \
1579     mmf                                                                 \
1580     mov                                                                 \
1581     pcm_mulaw=mulaw                                                     \
1582     mxf                                                                 \
1583     nut                                                                 \
1584     ogg                                                                 \
1585     rawvideo=pixfmt                                                     \
1586     rm                                                                  \
1587     swf                                                                 \
1588     mpegts=ts                                                           \
1589     voc                                                                 \
1590     wav                                                                 \
1591     yuv4mpegpipe=yuv4mpeg                                               \
1592
1593 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1594 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1595
1596 set_ne_test_deps pixdesc
1597 set_ne_test_deps pixfmts_copy
1598 set_ne_test_deps pixfmts_crop
1599 set_ne_test_deps pixfmts_hflip
1600 set_ne_test_deps pixfmts_null
1601 set_ne_test_deps pixfmts_pad
1602 set_ne_test_deps pixfmts_scale
1603 set_ne_test_deps pixfmts_vflip
1604
1605 # default parameters
1606
1607 logfile="config.log"
1608
1609 # installation paths
1610 prefix_default="/usr/local"
1611 bindir_default='${prefix}/bin'
1612 datadir_default='${prefix}/share/ffmpeg'
1613 incdir_default='${prefix}/include'
1614 libdir_default='${prefix}/lib'
1615 mandir_default='${prefix}/share/man'
1616 shlibdir_default="$libdir_default"
1617
1618 # toolchain
1619 ar_default="ar"
1620 cc_default="gcc"
1621 cc_version=\"unknown\"
1622 host_cc_default="gcc"
1623 ln_s="ln -sf"
1624 nm_default="nm"
1625 objformat="elf"
1626 pkg_config_default=pkg-config
1627 ranlib="ranlib"
1628 yasmexe="yasm"
1629 nogas=":"
1630
1631 nm_opts='-g'
1632
1633 # machine
1634 arch_default=$(uname -m)
1635 cpu="generic"
1636
1637 # OS
1638 target_os_default=$(tolower $(uname -s))
1639 host_os=$target_os_default
1640
1641 # configurable options
1642 enable avcodec
1643 enable avdevice
1644 enable avfilter
1645 enable avformat
1646 enable avutil
1647 enable asm
1648 enable debug
1649 enable doc
1650 enable fastdiv
1651 enable ffmpeg
1652 enable ffplay
1653 enable ffprobe
1654 enable ffserver
1655 enable network
1656 enable optimizations
1657 enable postproc
1658 enable protocols
1659 enable static
1660 enable swscale
1661 enable swscale_alpha
1662
1663 # build settings
1664 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1665 FFSERVERLDFLAGS=-Wl,-E
1666 LIBPREF="lib"
1667 LIBSUF=".a"
1668 FULLNAME='$(NAME)$(BUILDSUF)'
1669 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1670 SLIBPREF="lib"
1671 SLIBSUF=".so"
1672 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1673 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1674 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1675 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1676
1677 AS_O='-o $@'
1678 CC_O='-o $@'
1679
1680 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1681 host_libs='-lm'
1682
1683 target_path='$(CURDIR)'
1684
1685 # since the object filename is not given with the -MM flag, the compiler
1686 # is only able to print the basename, and we must add the path ourselves
1687 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1688 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1689
1690 # find source path
1691 if test -f configure; then
1692     source_path=.
1693     disable source_path_used
1694 else
1695     source_path=$(cd $(dirname "$0"); pwd)
1696     enable source_path_used
1697     echo "$source_path" | grep -q '[[:blank:]]' &&
1698         die "Out of tree builds are impossible with whitespace in source path."
1699     test -e "$source_path/config.h" &&
1700         die "Out of tree builds are impossible with config.h in source dir."
1701 fi
1702
1703 for v in "$@"; do
1704     r=${v#*=}
1705     l=${v%"$r"}
1706     r=$(sh_quote "$r")
1707     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1708 done
1709
1710 find_things(){
1711     thing=$1
1712     pattern=$2
1713     file=$source_path/$3
1714     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1715 }
1716
1717 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1718 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1719 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1720 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1721 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1722 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1723 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1724 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1725 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1726 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1727 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1728
1729 find_tests(){
1730     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1731 }
1732
1733 ACODEC_TESTS=$(find_tests acodec)
1734 VCODEC_TESTS=$(find_tests vsynth1)
1735 LAVF_TESTS=$(find_tests lavf)
1736 LAVFI_TESTS=$(find_tests lavfi)
1737 SEEK_TESTS=$(find_tests seek seek_)
1738
1739 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1740
1741 for n in $COMPONENT_LIST; do
1742     v=$(toupper ${n%s})_LIST
1743     eval enable \$$v
1744     eval ${n}_if_any="\$$v"
1745 done
1746
1747 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1748
1749 die_unknown(){
1750     echo "Unknown option \"$1\"."
1751     echo "See $0 --help for available options."
1752     exit 1
1753 }
1754
1755 show_list() {
1756     suffix=_$1
1757     shift
1758     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1759     exit 0
1760 }
1761
1762 for opt do
1763     optval="${opt#*=}"
1764     case "$opt" in
1765     --extra-ldflags=*) add_ldflags $optval
1766     ;;
1767     --extra-libs=*) add_extralibs $optval
1768     ;;
1769     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1770     ;;
1771     --enable-debug=*) debuglevel="$optval"
1772     ;;
1773     --disable-everything)
1774     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1775     ;;
1776     --enable-*=*|--disable-*=*)
1777     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1778     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1779     eval list=\$$(toupper $thing)_LIST
1780     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1781     $action $(filter "$name" $list)
1782     ;;
1783     --enable-?*|--disable-?*)
1784     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1785     if is_in $option $COMPONENT_LIST; then
1786         test $action = disable && action=unset
1787         eval $action \$$(toupper ${option%s})_LIST
1788     elif is_in $option $CMDLINE_SELECT; then
1789         $action $option
1790     else
1791         die_unknown $opt
1792     fi
1793     ;;
1794     --list-*)
1795         NAME="${opt#--list-}"
1796         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1797         NAME=${NAME%s}
1798         eval show_list $NAME \$$(toupper $NAME)_LIST
1799     ;;
1800     --help|-h) show_help
1801     ;;
1802     *)
1803     optname="${opt%%=*}"
1804     optname="${optname#--}"
1805     optname=$(echo "$optname" | sed 's/-/_/g')
1806     if is_in $optname $CMDLINE_SET; then
1807         eval $optname='$optval'
1808     elif is_in $optname $CMDLINE_APPEND; then
1809         append $optname "$optval"
1810     else
1811          die_unknown $opt
1812     fi
1813     ;;
1814     esac
1815 done
1816
1817 disabled logging && logfile=/dev/null
1818
1819 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1820 set >> $logfile
1821
1822 test -n "$cross_prefix" && enable cross_compile
1823
1824 if enabled cross_compile; then
1825     test -n "$arch" && test -n "$target_os" ||
1826         die "Must specify target arch and OS when cross-compiling"
1827 fi
1828
1829 set_default arch target_os
1830
1831 ar_default="${cross_prefix}${ar_default}"
1832 cc_default="${cross_prefix}${cc_default}"
1833 nm_default="${cross_prefix}${nm_default}"
1834 pkg_config_default="${cross_prefix}${pkg_config_default}"
1835 ranlib="${cross_prefix}${ranlib}"
1836
1837 sysinclude_default="${sysroot}/usr/include"
1838
1839 set_default cc nm pkg_config sysinclude
1840 enabled cross_compile || host_cc_default=$cc
1841 set_default host_cc
1842
1843 if ! $pkg_config --version >/dev/null 2>&1; then
1844     warn "$pkg_config not found, library detection may fail."
1845     pkg_config=false
1846 fi
1847
1848 exesuf() {
1849     case $1 in
1850         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1851     esac
1852 }
1853
1854 EXESUF=$(exesuf $target_os)
1855 HOSTEXESUF=$(exesuf $host_os)
1856
1857 # set temporary file name
1858 : ${TMPDIR:=$TEMPDIR}
1859 : ${TMPDIR:=$TMP}
1860 : ${TMPDIR:=/tmp}
1861
1862 if ! check_cmd mktemp -u XXXXXX; then
1863     # simple replacement for missing mktemp
1864     # NOT SAFE FOR GENERAL USE
1865     mktemp(){
1866         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1867     }
1868 fi
1869
1870 tmpfile(){
1871     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1872         (set -C; exec > $tmp) 2>/dev/null ||
1873         die "Unable to create temporary file in $TMPDIR."
1874     append TMPFILES $tmp
1875     eval $1=$tmp
1876 }
1877
1878 trap 'rm -f -- $TMPFILES' EXIT
1879
1880 tmpfile TMPC  .c
1881 tmpfile TMPE  $EXESUF
1882 tmpfile TMPH  .h
1883 tmpfile TMPO  .o
1884 tmpfile TMPS  .S
1885 tmpfile TMPV  .ver
1886 tmpfile TMPSH .sh
1887 tmpfile TMPASM .asm
1888
1889 unset -f mktemp
1890
1891 chmod +x $TMPE
1892
1893 # make sure we can execute files in $TMPDIR
1894 cat > $TMPSH 2>> $logfile <<EOF
1895 #! /bin/sh
1896 EOF
1897 chmod +x $TMPSH >> $logfile 2>&1
1898 if ! $TMPSH >> $logfile 2>&1; then
1899     cat <<EOF
1900 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1901 variable to another directory and make sure that it is not mounted noexec.
1902 EOF
1903     die "Sanity test failed."
1904 fi
1905
1906 filter_cflags=echo
1907 filter_cppflags=echo
1908 filter_asflags=echo
1909
1910 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1911     cc_type=llvm_gcc
1912     cc_version=__VERSION__
1913     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1914     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1915     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1916     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1917     speed_cflags='-O3'
1918     size_cflags='-Os'
1919 elif $cc -v 2>&1 | grep -qi ^gcc; then
1920     cc_type=gcc
1921     cc_version=__VERSION__
1922     gcc_version=$($cc --version | head -n1)
1923     gcc_basever=$($cc -dumpversion)
1924     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1925     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1926     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1927     if ! $cc -dumpversion | grep -q '^2\.'; then
1928         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1929         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1930     fi
1931     speed_cflags='-O3'
1932     size_cflags='-Os'
1933 elif $cc --version 2>/dev/null | grep -q Intel; then
1934     cc_type=icc
1935     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1936     cc_ident=$($cc --version | head -n1)
1937     icc_version=$($cc -dumpversion)
1938     CC_DEPFLAGS='-MMD'
1939     AS_DEPFLAGS='-MMD'
1940     speed_cflags='-O3'
1941     size_cflags='-Os'
1942     noopt_cflags='-O1'
1943 elif $cc -v 2>&1 | grep -q xlc; then
1944     cc_type=xlc
1945     cc_version="AV_STRINGIFY(__IBMC__)"
1946     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1947     speed_cflags='-O5'
1948     size_cflags='-O5 -qcompact'
1949 elif $cc -V 2>/dev/null | grep -q Compaq; then
1950     cc_type=ccc
1951     cc_version="AV_STRINGIFY(__DECC_VER)"
1952     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1953     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1954     debuglevel=3
1955     add_ldflags -Wl,-z,now # calls to libots crash without this
1956     speed_cflags='-fast'
1957     size_cflags='-O1'
1958 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1959     test -d "$sysroot" || die "No valid sysroot specified."
1960     cc_type=armcc
1961     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1962     cc_ident=$($cc --vsn | head -n1)
1963     armcc_conf="$PWD/armcc.conf"
1964     $cc --arm_linux_configure                 \
1965         --arm_linux_config_file="$armcc_conf" \
1966         --configure_sysroot="$sysroot"        \
1967         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1968         die "Error creating armcc configuration file."
1969     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1970     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1971     as_default="${cross_prefix}gcc"
1972     CC_DEPFLAGS='-MMD'
1973     AS_DEPFLAGS='-MMD'
1974     speed_cflags='-O3'
1975     size_cflags='-Os'
1976     filter_asflags="filter_out -W${armcc_opt}*"
1977 elif $cc -version 2>/dev/null | grep -q TMS470; then
1978     cc_type=tms470
1979     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1980     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1981     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1982     CC_O='-fr=$(@D)'
1983     as_default="${cross_prefix}gcc"
1984     ld_default="${cross_prefix}gcc"
1985     TMPO=$(basename $TMPC .c).o
1986     append TMPFILES $TMPO
1987     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1988     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1989     AS_DEPFLAGS='-MMD'
1990     speed_cflags='-O3 -mf=5'
1991     size_cflags='-O3 -mf=2'
1992     filter_cflags=tms470_flags
1993     tms470_flags(){
1994         for flag; do
1995             case $flag in
1996                 -march=*|-mcpu=*)
1997                     case "${flag#*=}" in
1998                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1999                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2000                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2001                         armv6*|arm11*)          echo -mv=6   ;;
2002                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2003                                                 echo -mv=5e  ;;
2004                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2005                     esac
2006                     ;;
2007                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2008                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2009                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2010                 -msoft-float)   echo --float_support=vfplib       ;;
2011                 -O[0-3]|-mf=*)  echo $flag                        ;;
2012                 -g)             echo -g -mn                       ;;
2013                 -pds=*)         echo $flag                        ;;
2014             esac
2015         done
2016     }
2017 elif $cc -v 2>&1 | grep -q clang; then
2018     cc_type=clang
2019     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2020         cc_version=__clang_version__ || cc_version=__VERSION__
2021     cc_ident=$($cc --version | head -n1)
2022     CC_DEPFLAGS='-MMD'
2023     AS_DEPFLAGS='-MMD'
2024     speed_cflags='-O3'
2025     size_cflags='-Os'
2026 elif $cc -V 2>&1 | grep -q Sun; then
2027     cc_type=suncc
2028     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2029     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2030     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2031     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2032     speed_cflags='-O5'
2033     size_cflags='-O5 -xspace'
2034     filter_cflags=suncc_flags
2035     suncc_flags(){
2036         for flag; do
2037             case $flag in
2038                 -march=*|-mcpu=*)
2039                     case "${flag#*=}" in
2040                         native)                   echo -xtarget=native       ;;
2041                         v9|niagara)               echo -xarch=sparc          ;;
2042                         ultrasparc)               echo -xarch=sparcvis       ;;
2043                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2044                         i586|pentium)             echo -xchip=pentium        ;;
2045                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2046                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2047                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2048                         pentium4*)          echo -xtarget=pentium4           ;;
2049                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2050                         *-sse3)             echo -xarch=sse3                 ;;
2051                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2052                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2053                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2054                         k8|opteron|athlon64|athlon-fx)
2055                                                   echo -xarch=sse2a          ;;
2056                         athlon*)                  echo -xarch=pentium_proa   ;;
2057                     esac
2058                     ;;
2059                 -std=c99)             echo -xc99              ;;
2060                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2061                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2062                 -W*,*)                echo $flag              ;;
2063                 -f*-*|-W*)                                    ;;
2064                 *)                    echo $flag              ;;
2065             esac
2066         done
2067     }
2068 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2069     cc_type=pathscale
2070     cc_version=__PATHSCALE__
2071     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2072     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2073     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2074     speed_cflags='-O2'
2075     size_cflags='-Os'
2076     filter_cflags='filter_out -Wdisabled-optimization'
2077 elif $cc -v 2>&1 | grep -q Open64; then
2078     cc_type=open64
2079     cc_version=__OPEN64__
2080     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2081     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2082     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2083     speed_cflags='-O2'
2084     size_cflags='-Os'
2085     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2086 fi
2087
2088 test -n "$cc_type" && enable $cc_type ||
2089     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2090
2091 : ${as_default:=$cc}
2092 : ${dep_cc_default:=$cc}
2093 : ${ld_default:=$cc}
2094 set_default ar as dep_cc ld
2095
2096 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2097 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2098
2099 add_cflags $extra_cflags
2100 add_asflags $extra_cflags
2101
2102 if test -n "$sysroot"; then
2103     case "$cc_type" in
2104         gcc|llvm_gcc|clang)
2105             add_cppflags --sysroot="$sysroot"
2106             add_ldflags --sysroot="$sysroot"
2107         ;;
2108         tms470)
2109             add_cppflags -I"$sysinclude"
2110             add_ldflags  --sysroot="$sysroot"
2111         ;;
2112     esac
2113 fi
2114
2115 if test "$cpu" = host; then
2116     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2117
2118     case "$cc_type" in
2119         gcc|llvm_gcc)
2120             check_native(){
2121                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2122                 sed -n "/$1=/{
2123                             s/.*$1=\\([^ ]*\\).*/\\1/
2124                             p
2125                             q
2126                         }" $TMPE
2127             }
2128             cpu=$(check_native -march || check_native -mcpu)
2129         ;;
2130     esac
2131
2132     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2133 fi
2134
2135 # Deal with common $arch aliases
2136 case "$arch" in
2137     arm*)
2138         arch="arm"
2139     ;;
2140     mips|mipsel|IP*)
2141         arch="mips"
2142     ;;
2143     mips64*)
2144         arch="mips"
2145         subarch="mips64"
2146     ;;
2147     parisc|hppa)
2148         arch="parisc"
2149     ;;
2150     parisc64|hppa64)
2151         arch="parisc"
2152         subarch="parisc64"
2153     ;;
2154     "Power Macintosh"|ppc|powerpc)
2155         arch="ppc"
2156     ;;
2157     ppc64|powerpc64)
2158         arch="ppc"
2159         subarch="ppc64"
2160     ;;
2161     s390|s390x)
2162         arch="s390"
2163     ;;
2164     sh4|sh)
2165         arch="sh4"
2166     ;;
2167     sun4u|sparc64)
2168         arch="sparc"
2169         subarch="sparc64"
2170     ;;
2171     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2172         arch="x86"
2173     ;;
2174 esac
2175
2176 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2177 enable $arch
2178
2179 # Add processor-specific flags
2180 if test "$cpu" = generic; then
2181     : do nothing
2182 elif enabled ppc; then
2183
2184     case $(tolower $cpu) in
2185         601|ppc601|powerpc601)
2186             cpuflags="-mcpu=601"
2187             disable altivec
2188         ;;
2189         603*|ppc603*|powerpc603*)
2190             cpuflags="-mcpu=603"
2191             disable altivec
2192         ;;
2193         604*|ppc604*|powerpc604*)
2194             cpuflags="-mcpu=604"
2195             disable altivec
2196         ;;
2197         g3|75*|ppc75*|powerpc75*)
2198             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2199             disable altivec
2200         ;;
2201         g4|745*|ppc745*|powerpc745*)
2202             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2203         ;;
2204         74*|ppc74*|powerpc74*)
2205             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2206         ;;
2207         g5|970|ppc970|powerpc970|power4*)
2208             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2209         ;;
2210         cell)
2211             cpuflags="-mcpu=cell"
2212             enable ldbrx
2213         ;;
2214         e500v2)
2215             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2216             disable altivec
2217         ;;
2218         e500)
2219             cpuflags="-mcpu=8540 -mhard-float"
2220             disable altivec
2221         ;;
2222     esac
2223
2224 elif enabled x86; then
2225
2226     case $cpu in
2227         i[345]86|pentium)
2228             cpuflags="-march=$cpu"
2229             disable mmx
2230         ;;
2231         # targets that do NOT support conditional mov (cmov)
2232         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2233             cpuflags="-march=$cpu"
2234             disable cmov
2235         ;;
2236         # targets that do support conditional mov (cmov)
2237         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2238             cpuflags="-march=$cpu"
2239             enable cmov
2240             enable fast_cmov
2241         ;;
2242         # targets that do support conditional mov but on which it's slow
2243         pentium4|pentium4m|prescott|nocona)
2244             cpuflags="-march=$cpu"
2245             enable cmov
2246             disable fast_cmov
2247         ;;
2248     esac
2249
2250 elif enabled sparc; then
2251
2252     case $cpu in
2253         niagara)
2254             cpuflags="-mcpu=$cpu"
2255             disable vis
2256         ;;
2257         sparc64)
2258             cpuflags="-mcpu=v9"
2259         ;;
2260     esac
2261
2262 elif enabled arm; then
2263
2264     case $cpu in
2265         armv*)
2266             cpuflags="-march=$cpu"
2267             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2268         ;;
2269         *)
2270             cpuflags="-mcpu=$cpu"
2271             case $cpu in
2272                 cortex-a*)                               subarch=armv7a  ;;
2273                 cortex-r*)                               subarch=armv7r  ;;
2274                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2275                 arm11*)                                  subarch=armv6   ;;
2276                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2277                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2278             esac
2279         ;;
2280     esac
2281
2282 elif enabled alpha; then
2283
2284     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2285
2286 elif enabled bfin; then
2287
2288     cpuflags="-mcpu=$cpu"
2289
2290 elif enabled mips; then
2291
2292     cpuflags="-march=$cpu"
2293
2294 elif enabled avr32; then
2295
2296     case $cpu in
2297         ap7[02]0[0-2])
2298             subarch="avr32_ap"
2299             cpuflags="-mpart=$cpu"
2300         ;;
2301         ap)
2302             subarch="avr32_ap"
2303             cpuflags="-march=$cpu"
2304         ;;
2305         uc3[ab]*)
2306             subarch="avr32_uc"
2307             cpuflags="-mcpu=$cpu"
2308         ;;
2309         uc)
2310             subarch="avr32_uc"
2311             cpuflags="-march=$cpu"
2312         ;;
2313     esac
2314
2315 fi
2316
2317 add_cflags $cpuflags
2318 add_asflags $cpuflags
2319
2320 # compiler sanity check
2321 check_exec <<EOF
2322 int main(void){ return 0; }
2323 EOF
2324 if test "$?" != 0; then
2325     echo "$cc is unable to create an executable file."
2326     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2327         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2328         echo "Only do this if you know what cross compiling means."
2329     fi
2330     die "C compiler test failed."
2331 fi
2332
2333 add_cppflags -D_ISOC99_SOURCE
2334 check_cflags -std=c99
2335 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2336 #include <stdlib.h>
2337 EOF
2338 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2339 #include <stdlib.h>
2340 EOF
2341
2342 check_host_cflags -std=c99
2343 check_host_cflags -Wall
2344
2345 case "$arch" in
2346     alpha|ia64|mips|parisc|sparc)
2347         spic=$shared
2348     ;;
2349     x86)
2350         subarch="x86_32"
2351         check_cc <<EOF && subarch="x86_64"
2352         int test[(int)sizeof(char*) - 7];
2353 EOF
2354         if test "$subarch" = "x86_64"; then
2355             spic=$shared
2356         fi
2357     ;;
2358 esac
2359
2360 enable $subarch
2361 enabled spic && enable pic
2362
2363 # OS specific
2364 case $target_os in
2365     haiku)
2366         prefix_default="/boot/common"
2367         network_extralibs="-lnetwork"
2368         host_libs=
2369         ;;
2370     sunos)
2371         FFSERVERLDFLAGS=""
2372         SHFLAGS='-shared -Wl,-h,$$(@F)'
2373         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2374         network_extralibs="-lsocket -lnsl"
2375         add_cppflags -D__EXTENSIONS__
2376         nm_opts='-P -g'
2377         ;;
2378     netbsd)
2379         disable symver
2380         oss_indev_extralibs="-lossaudio"
2381         oss_outdev_extralibs="-lossaudio"
2382         ;;
2383     openbsd)
2384         enable malloc_aligned
2385         # On OpenBSD 4.5. the compiler does not use PIC unless
2386         # explicitly using -fPIC. Libav builds fine without PIC,
2387         # however the generated executable will not do anything
2388         # (simply quits with exit-code 1, no crash, no output).
2389         # Thus explicitly enable PIC here.
2390         enable pic
2391         disable symver
2392         SHFLAGS='-shared'
2393         oss_indev_extralibs="-lossaudio"
2394         oss_outdev_extralibs="-lossaudio"
2395         ;;
2396     dragonfly)
2397         enable malloc_aligned
2398         disable symver
2399         ;;
2400     freebsd)
2401         enable malloc_aligned
2402         ;;
2403     bsd/os)
2404         add_extralibs -lpoll -lgnugetopt
2405         ;;
2406     darwin)
2407         enable malloc_aligned
2408         gas="gas-preprocessor.pl $cc"
2409         enabled ppc && add_asflags -force_cpusubtype_ALL
2410         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2411         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2412         add_ldflags -Wl,-dynamic,-search_paths_first
2413         SLIBSUF=".dylib"
2414         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2415         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2416         FFSERVERLDFLAGS=-Wl,-bind_at_load
2417         objformat="macho"
2418         enabled x86_64 && objformat="macho64"
2419         enabled_any pic shared ||
2420             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2421         ;;
2422     mingw32*)
2423         if test $target_os = "mingw32ce"; then
2424             disable network
2425         else
2426             target_os=mingw32
2427         fi
2428         LIBTARGET=i386
2429         if enabled x86_64; then
2430             enable malloc_aligned
2431             LIBTARGET="i386:x86-64"
2432         elif enabled arm; then
2433             LIBTARGET=arm-wince
2434         fi
2435         shlibdir_default="$bindir_default"
2436         SLIBPREF=""
2437         SLIBSUF=".dll"
2438         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2439         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2440         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2441         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2442             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2443             install -d "$(LIBDIR)"; \
2444             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2445         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2446         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'
2447         objformat="win32"
2448         dlltool="${cross_prefix}dlltool"
2449         enable dos_paths
2450         check_cflags -fno-common
2451         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2452                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2453                 die "ERROR: MinGW runtime version must be >= 3.15."
2454         add_cppflags -U__STRICT_ANSI__
2455         ;;
2456     cygwin*)
2457         target_os=cygwin
2458         shlibdir_default="$bindir_default"
2459         SLIBPREF="cyg"
2460         SLIBSUF=".dll"
2461         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2462         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2463         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2464         objformat="win32"
2465         enable dos_paths
2466         check_cflags -fno-common
2467         add_cppflags -U__STRICT_ANSI__
2468         ;;
2469     *-dos|freedos|opendos)
2470         network_extralibs="-lsocket"
2471         objformat="coff"
2472         enable dos_paths
2473         add_cppflags -U__STRICT_ANSI__
2474         ;;
2475     linux)
2476         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2477         enable dv1394
2478         ;;
2479     irix*)
2480         target_os=irix
2481         ranlib="echo ignoring ranlib"
2482         ;;
2483     os/2*)
2484         ln_s="cp -f"
2485         objformat="aout"
2486         add_cppflags -D_GNU_SOURCE
2487         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2488         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2489         FFSERVERLDFLAGS=""
2490         LIBSUF="_s.a"
2491         SLIBPREF=""
2492         SLIBSUF=".dll"
2493         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2494         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2495         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2496           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2497           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2498           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2499           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2500           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2501         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2502           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2503         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2504         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2505         enable dos_paths
2506         ;;
2507     gnu/kfreebsd)
2508         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2509         ;;
2510     gnu)
2511         ;;
2512     qnx)
2513         add_cppflags -D_QNX_SOURCE
2514         network_extralibs="-lsocket"
2515         ;;
2516     symbian)
2517         SLIBSUF=".dll"
2518         enable dos_paths
2519         add_cflags --include=$sysinclude/gcce/gcce.h
2520         ;;
2521     none)
2522         ;;
2523     *)
2524         die "Unknown OS '$target_os'."
2525         ;;
2526 esac
2527
2528 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2529
2530 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2531
2532 set_default $PATHS_LIST
2533
2534 # we need to build at least one lib type
2535 if ! enabled_any static shared; then
2536     cat <<EOF
2537 At least one library type must be built.
2538 Specify --enable-static to build the static libraries or --enable-shared to
2539 build the shared libraries as well. To only build the shared libraries specify
2540 --disable-static in addition to --enable-shared.
2541 EOF
2542     exit 1;
2543 fi
2544
2545 disabled static && LIBNAME=""
2546
2547 die_license_disabled() {
2548     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2549 }
2550
2551 die_license_disabled gpl libx264
2552 die_license_disabled gpl libxavs
2553 die_license_disabled gpl libxvid
2554 die_license_disabled gpl x11grab
2555
2556 die_license_disabled nonfree libfaac
2557
2558 die_license_disabled version3 libopencore_amrnb
2559 die_license_disabled version3 libopencore_amrwb
2560 die_license_disabled version3 libvo_aacenc
2561 die_license_disabled version3 libvo_amrwbenc
2562
2563 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2564
2565 disabled optimizations || check_cflags -fomit-frame-pointer
2566
2567 enable_pic() {
2568     enable pic
2569     add_cppflags -DPIC
2570     add_cflags   -fPIC
2571     add_asflags  -fPIC
2572 }
2573
2574 enabled pic && enable_pic
2575
2576 check_cc <<EOF || die "Symbol mangling check failed."
2577 int ff_extern;
2578 EOF
2579 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2580 extern_prefix=${sym%%ff_extern*}
2581
2582 check_cc <<EOF && enable inline_asm
2583 void foo(void) { __asm__ volatile ("" ::); }
2584 EOF
2585
2586 _restrict=
2587 for restrict_keyword in restrict __restrict__ __restrict; do
2588     check_cc <<EOF && _restrict=$restrict_keyword && break
2589 void foo(char * $restrict_keyword p);
2590 EOF
2591 done
2592
2593 check_cc <<EOF && enable attribute_packed
2594 struct { int x; } __attribute__((packed)) x;
2595 EOF
2596
2597 check_cc <<EOF && enable attribute_may_alias
2598 union { int x; } __attribute__((may_alias)) x;
2599 EOF
2600
2601 check_cc <<EOF || die "endian test failed"
2602 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2603 EOF
2604 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2605
2606 if enabled alpha; then
2607
2608     check_cflags -mieee
2609
2610 elif enabled arm; then
2611
2612     enabled thumb && check_cflags -mthumb || check_cflags -marm
2613     nogas=die
2614
2615     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2616         enable vfp_args
2617     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2618         case "${cross_prefix:-$cc}" in
2619             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2620             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2621 __asm__ (".eabi_attribute 28, 1");
2622 int main(void) { return 0; }
2623 EOF
2624         esac
2625         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2626     fi
2627
2628     # We have to check if pld is a nop and disable it.
2629     check_asm pld '"pld [r0]"'
2630
2631     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2632     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2633     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2634     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2635     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2636     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2637     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2638
2639     enabled_all armv6t2 shared !pic && enable_pic
2640
2641 elif enabled mips; then
2642
2643     check_asm loongson '"dmult.g $1, $2, $3"'
2644     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2645
2646 elif enabled ppc; then
2647
2648     enable local_aligned_8 local_aligned_16
2649
2650     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2651     check_asm ibm_asm   '"add 0, 0, 0"'
2652     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2653     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2654
2655     # AltiVec flags: The FSF version of GCC differs from the Apple version
2656     if enabled altivec; then
2657         nogas=warn
2658         check_cflags -maltivec -mabi=altivec &&
2659         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2660         check_cflags -faltivec
2661
2662         # check if our compiler supports Motorola AltiVec C API
2663         check_cc <<EOF || disable altivec
2664 $inc_altivec_h
2665 int main(void) {
2666     vector signed int v1, v2, v3;
2667     v1 = vec_add(v2,v3);
2668     return 0;
2669 }
2670 EOF
2671
2672         # check if our compiler supports braces for vector declarations
2673         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2674 $inc_altivec_h
2675 int main (void) { (vector int) {1}; return 0; }
2676 EOF
2677     fi
2678
2679 elif enabled sparc; then
2680
2681     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2682         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2683
2684 elif enabled x86; then
2685
2686     enable local_aligned_8 local_aligned_16
2687
2688     # check whether EBP is available on x86
2689     # As 'i' is stored on the stack, this program will crash
2690     # if the base pointer is used to access it because the
2691     # base pointer is cleared in the inline assembly code.
2692     check_exec_crash <<EOF && enable ebp_available
2693     volatile int i=0;
2694     __asm__ volatile (
2695         "xorl %%ebp, %%ebp"
2696     ::: "%ebp");
2697     return i;
2698 EOF
2699
2700     # check whether EBX is available on x86
2701     check_asm ebx_available '""::"b"(0)' &&
2702         check_asm ebx_available '"":::"%ebx"'
2703
2704     # check whether xmm clobbers are supported
2705     check_asm xmm_clobbers '"":::"%xmm0"'
2706
2707     # check whether more than 10 operands are supported
2708     check_cc <<EOF && enable ten_operands
2709 int main(void) {
2710     int x=0;
2711     __asm__ volatile(
2712         ""
2713         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2714     );
2715     return 0;
2716 }
2717 EOF
2718
2719     # check whether binutils is new enough to compile SSSE3/MMX2
2720     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2721     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2722
2723     check_asm bswap '"bswap %%eax" ::: "%eax"'
2724
2725     if ! disabled_any asm mmx yasm; then
2726         if check_cmd $yasmexe --version; then
2727             enabled x86_64 && yasm_extra="-m amd64"
2728             yasm_debug="-g dwarf2"
2729         elif check_cmd nasm -v; then
2730             yasmexe=nasm
2731             yasm_debug="-g -F dwarf"
2732             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2733         fi
2734
2735         YASMFLAGS="-f $objformat $yasm_extra"
2736         enabled pic               && append YASMFLAGS "-DPIC"
2737         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2738         case "$objformat" in
2739             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2740         esac
2741
2742         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2743             die "yasm not found, use --disable-yasm for a crippled build"
2744         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2745     fi
2746
2747     case "$cpu" in
2748         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2749             disable fast_clz
2750         ;;
2751     esac
2752
2753 fi
2754
2755 if enabled asm; then
2756     as=${gas:=$as}
2757     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2758         $nogas "GNU assembler not found, install gas-preprocessor"
2759 fi
2760
2761 check_ldflags -Wl,--as-needed
2762
2763 if check_func dlopen; then
2764     ldl=
2765 elif check_func dlopen -ldl; then
2766     ldl=-ldl
2767 fi
2768
2769 if enabled network; then
2770     check_type "sys/types.h sys/socket.h" socklen_t
2771     check_type netdb.h "struct addrinfo"
2772     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2773     check_type netinet/in.h "struct sockaddr_in6"
2774     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2775     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2776     # Prefer arpa/inet.h over winsock2
2777     if check_header arpa/inet.h ; then
2778         check_func closesocket
2779     elif check_header winsock2.h ; then
2780         check_func_headers winsock2.h closesocket -lws2 && \
2781             network_extralibs="-lws2" || \
2782         { check_func_headers winsock2.h closesocket -lws2_32 && \
2783             network_extralibs="-lws2_32"; }
2784         check_type ws2tcpip.h socklen_t
2785         check_type ws2tcpip.h "struct addrinfo"
2786         check_type ws2tcpip.h "struct ipv6_mreq"
2787         check_type ws2tcpip.h "struct sockaddr_in6"
2788         check_type ws2tcpip.h "struct sockaddr_storage"
2789         check_struct winsock2.h "struct sockaddr" sa_len
2790     else
2791         disable network
2792     fi
2793 fi
2794
2795 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2796 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2797
2798 check_func  fcntl
2799 check_func  fork
2800 check_func  getaddrinfo $network_extralibs
2801 check_func  gethrtime
2802 check_func  getrusage
2803 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2804 check_func  inet_aton $network_extralibs
2805 check_func  isatty
2806 check_func  localtime_r
2807 check_func  ${malloc_prefix}memalign            && enable memalign
2808 check_func  mkstemp
2809 check_func  mmap
2810 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2811 check_func  setrlimit
2812 check_func  strerror_r
2813 check_func  strtok_r
2814 check_func_headers io.h setmode
2815 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2816 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2817 check_func_headers windows.h GetProcessTimes
2818 check_func_headers windows.h MapViewOfFile
2819 check_func_headers windows.h VirtualAlloc
2820
2821 check_header dlfcn.h
2822 check_header dxva2api.h
2823 check_header malloc.h
2824 check_header poll.h
2825 check_header sys/mman.h
2826 check_header sys/resource.h
2827 check_header sys/select.h
2828 check_header vdpau/vdpau.h
2829 check_header vdpau/vdpau_x11.h
2830 check_header X11/extensions/XvMClib.h
2831
2832 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2833
2834 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2835 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2836
2837 # check for some common methods of building with pthread support
2838 # do this before the optional library checks as some of them require pthreads
2839 if ! disabled pthreads && ! enabled w32threads; then
2840     enable pthreads
2841     if check_func pthread_create; then
2842         :
2843     elif check_func pthread_create -pthread; then
2844         add_cflags -pthread
2845         add_extralibs -pthread
2846     elif check_func pthread_create -pthreads; then
2847         add_cflags -pthreads
2848         add_extralibs -pthreads
2849     elif check_func pthread_create -lpthreadGC2; then
2850         add_extralibs -lpthreadGC2
2851     elif ! check_lib pthread.h pthread_create -lpthread; then
2852         disable pthreads
2853     fi
2854 fi
2855
2856 for thread in $THREADS_LIST; do
2857     if enabled $thread; then
2858         test -n "$thread_type" &&
2859             die "ERROR: Only one thread type must be selected." ||
2860             thread_type="$thread"
2861     fi
2862 done
2863
2864 check_lib math.h sin -lm && LIBM="-lm"
2865 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2866
2867 check_mathfunc exp2
2868 check_mathfunc exp2f
2869 check_mathfunc llrint
2870 check_mathfunc llrintf
2871 check_mathfunc log2
2872 check_mathfunc log2f
2873 check_mathfunc lrint
2874 check_mathfunc lrintf
2875 check_mathfunc round
2876 check_mathfunc roundf
2877 check_mathfunc trunc
2878 check_mathfunc truncf
2879
2880 # these are off by default, so fail if requested and not available
2881 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2882 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2883 enabled libdirac   && require_pkg_config dirac                          \
2884     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2885     "dirac_decoder_init dirac_encoder_init"
2886 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2887 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2888 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2889 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2890 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2891 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2892 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2893 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2894 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2895 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2896 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2897 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2898 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2899 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2900 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2901 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2902 enabled libvpx     && {
2903     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2904                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2905     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2906                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2907 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2908                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2909                         die "ERROR: libx264 version must be >= 0.115."; }
2910 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2911 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2912 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2913
2914 # libdc1394 check
2915 if enabled libdc1394; then
2916     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2917         enable libdc1394_2; } ||
2918     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2919         enable libdc1394_1; } ||
2920     die "ERROR: No version of libdc1394 found "
2921 fi
2922
2923 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2924     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2925     enable sdl &&
2926     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2927 fi
2928
2929 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2930
2931 check_header linux/fb.h
2932 check_header linux/videodev.h
2933 check_header linux/videodev2.h
2934 check_header sys/videoio.h
2935
2936 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2937 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2938 # w32api 3.12 had it defined wrong
2939 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2940
2941 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2942 { check_header dev/bktr/ioctl_meteor.h &&
2943   check_header dev/bktr/ioctl_bt848.h; } ||
2944 { check_header machine/ioctl_meteor.h &&
2945   check_header machine/ioctl_bt848.h; } ||
2946 { check_header dev/video/meteor/ioctl_meteor.h &&
2947   check_header dev/video/bktr/ioctl_bt848.h; } ||
2948 check_header dev/ic/bt8xx.h
2949
2950 check_header sndio.h
2951 check_header sys/soundcard.h
2952 check_header soundcard.h
2953
2954 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2955
2956 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2957
2958 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2959
2960 enabled x11grab                         &&
2961 check_header X11/Xlib.h                 &&
2962 check_header X11/extensions/XShm.h      &&
2963 check_header X11/extensions/Xfixes.h    &&
2964 check_func XOpenDisplay -lX11           &&
2965 check_func XShmCreateImage -lX11 -lXext &&
2966 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2967
2968 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2969 check_cpp_condition \
2970     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2971     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2972       disable vdpau; }
2973 fi
2974
2975 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2976
2977 # add some useful compiler flags if supported
2978 check_cflags -Wdeclaration-after-statement
2979 check_cflags -Wall
2980 check_cflags -Wno-parentheses
2981 check_cflags -Wno-switch
2982 check_cflags -Wno-format-zero-length
2983 check_cflags -Wdisabled-optimization
2984 check_cflags -Wpointer-arith
2985 check_cflags -Wredundant-decls
2986 check_cflags -Wno-pointer-sign
2987 check_cflags -Wcast-qual
2988 check_cflags -Wwrite-strings
2989 check_cflags -Wtype-limits
2990 check_cflags -Wundef
2991 check_cflags -Wmissing-prototypes
2992 enabled extra_warnings && check_cflags -Winline
2993
2994 # add some linker flags
2995 check_ldflags -Wl,--warn-common
2996 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
2997 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2998
2999 echo "X{};" > $TMPV
3000 if test_ldflags -Wl,--version-script,$TMPV; then
3001     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3002     check_cc <<EOF && enable symver_asm_label
3003 void ff_foo(void) __asm__ ("av_foo@VERSION");
3004 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3005 EOF
3006     check_cc <<EOF && enable symver_gnu_asm
3007 __asm__(".symver ff_foo,av_foo@VERSION");
3008 void ff_foo(void) {}
3009 EOF
3010 fi
3011
3012 if [ -n "$optflags" ]; then
3013     add_cflags $optflags
3014 elif enabled small; then
3015     add_cflags $size_cflags
3016 elif enabled optimizations; then
3017     add_cflags $speed_cflags
3018 else
3019     add_cflags $noopt_cflags
3020 fi
3021 check_cflags -fno-math-errno
3022 check_cflags -fno-signed-zeros
3023
3024 if enabled icc; then
3025     # Just warnings, no remarks
3026     check_cflags -w1
3027     # -wd: Disable following warnings
3028     # 144, 167, 556: -Wno-pointer-sign
3029     # 1292: attribute "foo" ignored
3030     # 10006: ignoring unknown option -fno-signed-zeros
3031     # 10148: ignoring unknown option -Wno-parentheses
3032     # 10156: ignoring option '-W'; no argument required
3033     check_cflags -wd144,167,556,1292,10006,10148,10156
3034     # 11030: Warning unknown option --as-needed
3035     # 10156: ignoring option '-export'; no argument required
3036     check_ldflags -wd10156,11030
3037     # Allow to compile with optimizations
3038     check_ldflags -march=$cpu
3039     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3040     enable ebp_available
3041     if enabled x86_32; then
3042         test ${icc_version%%.*} -ge 11 && \
3043             check_cflags -falign-stack=maintain-16-byte || \
3044             disable aligned_stack
3045     fi
3046 elif enabled ccc; then
3047     # disable some annoying warnings
3048     add_cflags -msg_disable cvtu32to64
3049     add_cflags -msg_disable embedcomment
3050     add_cflags -msg_disable needconstext
3051     add_cflags -msg_disable nomainieee
3052     add_cflags -msg_disable ptrmismatch1
3053     add_cflags -msg_disable unreachcode
3054 elif enabled gcc; then
3055     check_cflags -fno-tree-vectorize
3056     check_cflags -Werror=implicit-function-declaration
3057     check_cflags -Werror=missing-prototypes
3058 elif enabled llvm_gcc; then
3059     check_cflags -mllvm -stack-alignment=16
3060 elif enabled clang; then
3061     check_cflags -mllvm -stack-alignment=16
3062     check_cflags -Qunused-arguments
3063 elif enabled armcc; then
3064     # 2523: use of inline assembler is deprecated
3065     add_cflags -W${armcc_opt},--diag_suppress=2523
3066     add_cflags -W${armcc_opt},--diag_suppress=1207
3067     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3068     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3069     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3070     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3071 elif enabled tms470; then
3072     add_cflags -pds=824 -pds=837
3073 elif enabled pathscale; then
3074     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3075 fi
3076
3077 enabled_any $THREADS_LIST      && enable threads
3078
3079 check_deps $CONFIG_LIST       \
3080            $CONFIG_EXTRA      \
3081            $HAVE_LIST         \
3082            $DECODER_LIST      \
3083            $ENCODER_LIST      \
3084            $HWACCEL_LIST      \
3085            $PARSER_LIST       \
3086            $BSF_LIST          \
3087            $DEMUXER_LIST      \
3088            $MUXER_LIST        \
3089            $FILTER_LIST       \
3090            $INDEV_LIST        \
3091            $OUTDEV_LIST       \
3092            $PROTOCOL_LIST     \
3093            $ACODEC_TESTS      \
3094            $VCODEC_TESTS      \
3095            $LAVF_TESTS        \
3096            $LAVFI_TESTS       \
3097            $SEEK_TESTS        \
3098
3099 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3100
3101 ! enabled_any memalign posix_memalign malloc_aligned &&
3102     enabled_any $need_memalign && enable memalign_hack
3103
3104 echo "install prefix            $prefix"
3105 echo "source path               $source_path"
3106 echo "C compiler                $cc"
3107 echo "ARCH                      $arch ($cpu)"
3108 if test "$build_suffix" != ""; then
3109     echo "build suffix              $build_suffix"
3110 fi
3111 if test "$extra_version" != ""; then
3112     echo "version string suffix     $extra_version"
3113 fi
3114 echo "big-endian                ${bigendian-no}"
3115 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3116 if enabled x86; then
3117     echo "${yasmexe}                      ${yasm-no}"
3118     echo "MMX enabled               ${mmx-no}"
3119     echo "MMX2 enabled              ${mmx2-no}"
3120     echo "3DNow! enabled            ${amd3dnow-no}"
3121     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3122     echo "SSE enabled               ${sse-no}"
3123     echo "SSSE3 enabled             ${ssse3-no}"
3124     echo "AVX enabled               ${avx-no}"
3125     echo "CMOV enabled              ${cmov-no}"
3126     echo "CMOV is fast              ${fast_cmov-no}"
3127     echo "EBX available             ${ebx_available-no}"
3128     echo "EBP available             ${ebp_available-no}"
3129     echo "10 operands supported     ${ten_operands-no}"
3130 fi
3131 if enabled arm; then
3132     echo "ARMv5TE enabled           ${armv5te-no}"
3133     echo "ARMv6 enabled             ${armv6-no}"
3134     echo "ARMv6T2 enabled           ${armv6t2-no}"
3135     echo "ARM VFP enabled           ${armvfp-no}"
3136     echo "IWMMXT enabled            ${iwmmxt-no}"
3137     echo "NEON enabled              ${neon-no}"
3138 fi
3139 if enabled mips; then
3140     echo "MMI enabled               ${mmi-no}"
3141 fi
3142 if enabled ppc; then
3143     echo "AltiVec enabled           ${altivec-no}"
3144     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3145     echo "dcbzl available           ${dcbzl-no}"
3146 fi
3147 if enabled sparc; then
3148     echo "VIS enabled               ${vis-no}"
3149 fi
3150 echo "debug symbols             ${debug-no}"
3151 echo "optimize for size         ${small-no}"
3152 echo "optimizations             ${optimizations-no}"
3153 echo "static                    ${static-no}"
3154 echo "shared                    ${shared-no}"
3155 echo "postprocessing support    ${postproc-no}"
3156 echo "new filter support        ${avfilter-no}"
3157 echo "network support           ${network-no}"
3158 echo "threading support         ${thread_type-no}"
3159 echo "SDL support               ${sdl-no}"
3160 echo "Sun medialib support      ${mlib-no}"
3161 echo "AVISynth enabled          ${avisynth-no}"
3162 echo "frei0r enabled            ${frei0r-no}"
3163 echo "libdc1394 support         ${libdc1394-no}"
3164 echo "libdirac enabled          ${libdirac-no}"
3165 echo "libfaac enabled           ${libfaac-no}"
3166 echo "libgsm enabled            ${libgsm-no}"
3167 echo "libmp3lame enabled        ${libmp3lame-no}"
3168 echo "libnut enabled            ${libnut-no}"
3169 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3170 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3171 echo "libopencv support         ${libopencv-no}"
3172 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3173 echo "librtmp enabled           ${librtmp-no}"
3174 echo "libschroedinger enabled   ${libschroedinger-no}"
3175 echo "libspeex enabled          ${libspeex-no}"
3176 echo "libtheora enabled         ${libtheora-no}"
3177 echo "libva enabled             ${vaapi-no}"
3178 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3179 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3180 echo "libvorbis enabled         ${libvorbis-no}"
3181 echo "libvpx enabled            ${libvpx-no}"
3182 echo "libx264 enabled           ${libx264-no}"
3183 echo "libxavs enabled           ${libxavs-no}"
3184 echo "libxvid enabled           ${libxvid-no}"
3185 echo "zlib enabled              ${zlib-no}"
3186 echo "bzlib enabled             ${bzlib-no}"
3187 echo
3188
3189 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3190     echo "Enabled ${type}s:"
3191     eval list=\$$(toupper $type)_LIST
3192     print_enabled '_*' $list | sort | pr -r -3 -t
3193     echo
3194 done
3195
3196 license="LGPL version 2.1 or later"
3197 if enabled nonfree; then
3198     license="nonfree and unredistributable"
3199 elif enabled gplv3; then
3200     license="GPL version 3 or later"
3201 elif enabled lgplv3; then
3202     license="LGPL version 3 or later"
3203 elif enabled gpl; then
3204     license="GPL version 2 or later"
3205 fi
3206
3207 echo "License: $license"
3208
3209 echo "Creating config.mak and config.h..."
3210
3211 # build tree in object directory if source path is different from current one
3212 if enabled source_path_used; then
3213     DIRS="
3214         doc
3215         libavcodec
3216         libavcodec/$arch
3217         libavdevice
3218         libavfilter
3219         libavfilter/$arch
3220         libavformat
3221         libavutil
3222         libavutil/$arch
3223         libpostproc
3224         libswscale
3225         libswscale/$arch
3226         tests
3227         tools
3228     "
3229     FILES="
3230         Makefile
3231         common.mak
3232         subdir.mak
3233         doc/Makefile
3234         doc/texi2pod.pl
3235         libavcodec/Makefile
3236         libavcodec/${arch}/Makefile
3237         libavdevice/Makefile
3238         libavfilter/Makefile
3239         libavfilter/${arch}/Makefile
3240         libavformat/Makefile
3241         libavutil/Makefile
3242         libpostproc/Makefile
3243         libswscale/Makefile
3244         tests/Makefile
3245     "
3246     map 'mkdir -p $v' $DIRS;
3247     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3248 fi
3249
3250 config_files="$TMPH config.mak"
3251
3252 cat > config.mak <<EOF
3253 # Automatically generated by configure - do not modify!
3254 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3255 prefix=$prefix
3256 LIBDIR=\$(DESTDIR)$libdir
3257 SHLIBDIR=\$(DESTDIR)$shlibdir
3258 INCDIR=\$(DESTDIR)$incdir
3259 BINDIR=\$(DESTDIR)$bindir
3260 DATADIR=\$(DESTDIR)$datadir
3261 MANDIR=\$(DESTDIR)$mandir
3262 SRC_PATH=$source_path
3263 CC_IDENT=$cc_ident
3264 ARCH=$arch
3265 CC=$cc
3266 AS=$as
3267 LD=$ld
3268 DEPCC=$dep_cc
3269 YASM=$yasmexe
3270 YASMDEP=$yasmexe
3271 AR=$ar
3272 RANLIB=$ranlib
3273 LN_S=$ln_s
3274 CPPFLAGS=$CPPFLAGS
3275 CFLAGS=$CFLAGS
3276 ASFLAGS=$ASFLAGS
3277 AS_O=$CC_O
3278 CC_O=$CC_O
3279 DLLTOOL=$dlltool
3280 LDFLAGS=$LDFLAGS
3281 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3282 SHFLAGS=$SHFLAGS
3283 YASMFLAGS=$YASMFLAGS
3284 BUILDSUF=$build_suffix
3285 FULLNAME=$FULLNAME
3286 LIBPREF=$LIBPREF
3287 LIBSUF=$LIBSUF
3288 LIBNAME=$LIBNAME
3289 SLIBPREF=$SLIBPREF
3290 SLIBSUF=$SLIBSUF
3291 EXESUF=$EXESUF
3292 EXTRA_VERSION=$extra_version
3293 DEPFLAGS=$DEPFLAGS
3294 CCDEP=$CCDEP
3295 ASDEP=$ASDEP
3296 CC_DEPFLAGS=$CC_DEPFLAGS
3297 AS_DEPFLAGS=$AS_DEPFLAGS
3298 HOSTCC=$host_cc
3299 HOSTCFLAGS=$host_cflags
3300 HOSTEXESUF=$HOSTEXESUF
3301 HOSTLDFLAGS=$host_ldflags
3302 HOSTLIBS=$host_libs
3303 TARGET_EXEC=$target_exec
3304 TARGET_PATH=$target_path
3305 SDL_LIBS=$sdl_libs
3306 SDL_CFLAGS=$sdl_cflags
3307 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3308 EXTRALIBS=$extralibs
3309 INSTALL=install
3310 LIBTARGET=${LIBTARGET}
3311 SLIBNAME=${SLIBNAME}
3312 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3313 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3314 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3315 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3316 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3317 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3318 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3319 EOF
3320
3321 get_version(){
3322     name=$1
3323     file=$source_path/$2
3324     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3325     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3326     lcname=$(tolower $name)
3327     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3328     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3329 }
3330
3331 get_version LIBSWSCALE  libswscale/swscale.h
3332 get_version LIBPOSTPROC libpostproc/postprocess.h
3333 get_version LIBAVCODEC  libavcodec/version.h
3334 get_version LIBAVDEVICE libavdevice/avdevice.h
3335 get_version LIBAVFORMAT libavformat/version.h
3336 get_version LIBAVUTIL   libavutil/avutil.h
3337 get_version LIBAVFILTER libavfilter/avfilter.h
3338
3339 cat > $TMPH <<EOF
3340 /* Automatically generated by configure - do not modify! */
3341 #ifndef LIBAV_CONFIG_H
3342 #define LIBAV_CONFIG_H
3343 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3344 #define LIBAV_LICENSE "$(c_escape $license)"
3345 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3346 #define CC_TYPE "$cc_type"
3347 #define CC_VERSION $cc_version
3348 #define restrict $_restrict
3349 #define EXTERN_PREFIX "${extern_prefix}"
3350 #define EXTERN_ASM ${extern_prefix}
3351 #define SLIBSUF "$SLIBSUF"
3352 EOF
3353
3354 test -n "$malloc_prefix" &&
3355     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3356
3357 if enabled small || disabled optimizations; then
3358     echo "#undef  av_always_inline"  >> $TMPH
3359     if enabled small; then
3360         echo "#define av_always_inline inline"  >> $TMPH
3361     else
3362         echo "#define av_always_inline av_unused"  >> $TMPH
3363     fi
3364 fi
3365
3366 if enabled yasm; then
3367     append config_files $TMPASM
3368     printf '' >$TMPASM
3369 fi
3370
3371 print_config ARCH_   "$config_files" $ARCH_LIST
3372 print_config HAVE_   "$config_files" $HAVE_LIST
3373 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3374                                      $CONFIG_EXTRA      \
3375                                      $DECODER_LIST      \
3376                                      $ENCODER_LIST      \
3377                                      $HWACCEL_LIST      \
3378                                      $PARSER_LIST       \
3379                                      $BSF_LIST          \
3380                                      $DEMUXER_LIST      \
3381                                      $MUXER_LIST        \
3382                                      $FILTER_LIST       \
3383                                      $PROTOCOL_LIST     \
3384                                      $INDEV_LIST        \
3385                                      $OUTDEV_LIST       \
3386
3387 cat >>config.mak <<EOF
3388 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3389 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3390 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3391 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3392 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3393 EOF
3394
3395 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3396
3397 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3398 cp_if_changed $TMPH config.h
3399 touch .config
3400
3401 enabled yasm && cp_if_changed $TMPASM config.asm
3402
3403 cat > $TMPH <<EOF
3404 /* Generated by ffconf */
3405 #ifndef AVUTIL_AVCONFIG_H
3406 #define AVUTIL_AVCONFIG_H
3407 EOF
3408
3409 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3410
3411 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3412
3413 cp_if_changed $TMPH libavutil/avconfig.h
3414
3415 test -n "$WARNINGS" && printf "\n$WARNINGS"
3416
3417 # build pkg-config files
3418
3419 pkgconfig_generate(){
3420 name=$1
3421 shortname=${name#lib}${build_suffix}
3422 comment=$2
3423 version=$3
3424 libs=$4
3425 requires=$5
3426 enabled ${name#lib} || return 0
3427 cat <<EOF > $name/$name.pc
3428 prefix=$prefix
3429 exec_prefix=\${prefix}
3430 libdir=$libdir
3431 includedir=$incdir
3432
3433 Name: $name
3434 Description: $comment
3435 Version: $version
3436 Requires: $(enabled shared || echo $requires)
3437 Requires.private: $(enabled shared && echo $requires)
3438 Conflicts:
3439 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3440 Libs.private: $(enabled shared && echo $libs)
3441 Cflags: -I\${includedir}
3442 EOF
3443 cat <<EOF > $name/$name-uninstalled.pc
3444 prefix=
3445 exec_prefix=
3446 libdir=\${pcfiledir}
3447 includedir=${source_path}
3448
3449 Name: $name
3450 Description: $comment
3451 Version: $version
3452 Requires: $requires
3453 Conflicts:
3454 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3455 Cflags: -I\${includedir}
3456 EOF
3457 }
3458
3459 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3460 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3461 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3462 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3463 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3464 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3465 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"