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