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 Help options:
  63   --help                   print this message
  64   --list-decoders          show all available decoders
  65   --list-encoders          show all available encoders
  66   --list-hwaccels          show all available hardware accelerators
  67   --list-demuxers          show all available demuxers
  68   --list-muxers            show all available muxers
  69   --list-parsers           show all available parsers
  70   --list-protocols         show all available protocols
  71   --list-bsfs              show all available bitstream filters
  72   --list-indevs            show all available input devices
  73   --list-outdevs           show all available output devices
  74   --list-filters           show all available filters
  75
  76 Standard options:
  77   --logfile=FILE           log tests and output to FILE [config.log]
  78   --disable-logging        do not log configure debug information
  79   --prefix=PREFIX          install in PREFIX [$prefix]
  80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  81   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  82   --libdir=DIR             install libs in DIR [PREFIX/lib]
  83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  84   --incdir=DIR             install includes in DIR [PREFIX/include]
  85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  86
  87 Licensing options:
  88   --enable-gpl             allow use of GPL code, the resulting libs
  89                            and binaries will be under GPL [no]
  90   --enable-version3        upgrade (L)GPL to version 3 [no]
  91   --enable-nonfree         allow use of nonfree code, the resulting libs
  92                            and binaries will be unredistributable [no]
  93
  94 Configuration options:
  95   --disable-static         do not build static libraries [no]
  96   --enable-shared          build shared libraries [no]
  97   --enable-small           optimize for size instead of speed
  98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101
 102 Component options:
 103   --disable-doc            do not build documentation
 104   --disable-avconv         disable avconv build
 105   --disable-avplay         disable avplay build
 106   --disable-avprobe        disable avprobe build
 107   --disable-avserver       disable avserver build
 108   --disable-avdevice       disable libavdevice build
 109   --disable-avcodec        disable libavcodec build
 110   --disable-avformat       disable libavformat build
 111   --disable-swscale        disable libswscale build
 112   --disable-avfilter       disable video filter support [no]
 113   --disable-avresample     disable libavresample build [no]
 114   --disable-pthreads       disable pthreads [auto]
 115   --disable-w32threads     disable Win32 threads [auto]
 116   --enable-x11grab         enable X11 grabbing [no]
 117   --disable-network        disable network support [no]
 118   --disable-dct            disable DCT code
 119   --disable-mdct           disable MDCT code
 120   --disable-rdft           disable RDFT code
 121   --disable-fft            disable FFT code
 122   --enable-dxva2           enable DXVA2 code
 123   --enable-vaapi           enable VAAPI code
 124   --enable-vda             enable VDA code
 125   --enable-vdpau           enable VDPAU code
 126
 127 Individual component options:
 128   --disable-everything     disable all components listed below
 129   --disable-encoder=NAME   disable encoder NAME
 130   --enable-encoder=NAME    enable encoder NAME
 131   --disable-encoders       disable all encoders
 132   --disable-decoder=NAME   disable decoder NAME
 133   --enable-decoder=NAME    enable decoder NAME
 134   --disable-decoders       disable all decoders
 135   --disable-hwaccel=NAME   disable hwaccel NAME
 136   --enable-hwaccel=NAME    enable hwaccel NAME
 137   --disable-hwaccels       disable all hwaccels
 138   --disable-muxer=NAME     disable muxer NAME
 139   --enable-muxer=NAME      enable muxer NAME
 140   --disable-muxers         disable all muxers
 141   --disable-demuxer=NAME   disable demuxer NAME
 142   --enable-demuxer=NAME    enable demuxer NAME
 143   --disable-demuxers       disable all demuxers
 144   --enable-parser=NAME     enable parser NAME
 145   --disable-parser=NAME    disable parser NAME
 146   --disable-parsers        disable all parsers
 147   --enable-bsf=NAME        enable bitstream filter NAME
 148   --disable-bsf=NAME       disable bitstream filter NAME
 149   --disable-bsfs           disable all bitstream filters
 150   --enable-protocol=NAME   enable protocol NAME
 151   --disable-protocol=NAME  disable protocol NAME
 152   --disable-protocols      disable all protocols
 153   --enable-indev=NAME      enable input device NAME
 154   --disable-indev=NAME     disable input device NAME
 155   --disable-indevs         disable input devices
 156   --enable-outdev=NAME     enable output device NAME
 157   --disable-outdev=NAME    disable output device NAME
 158   --disable-outdevs        disable output devices
 159   --disable-devices        disable all devices
 160   --enable-filter=NAME     enable filter NAME
 161   --disable-filter=NAME    disable filter NAME
 162   --disable-filters        disable all filters
 163
 164 External library support:
 165   --enable-avisynth        enable reading of AVISynth script files [no]
 166   --enable-bzlib           enable bzlib [autodetect]
 167   --enable-frei0r          enable frei0r video filtering
 168   --enable-gnutls          enable gnutls [no]
 169   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 170   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 171   --enable-libopencv       enable video filtering via libopencv [no]
 172   --enable-libcdio         enable audio CD grabbing with libcdio
 173   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 174                            and libraw1394 [no]
 175   --enable-libfaac         enable FAAC support via libfaac [no]
 176   --enable-libfreetype     enable libfreetype [no]
 177   --enable-libgsm          enable GSM support via libgsm [no]
 178   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 179   --enable-libnut          enable NUT (de)muxing via libnut,
 180                            native (de)muxer exists [no]
 181   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 182   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 183   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 184   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 185   --enable-libspeex        enable Speex support via libspeex [no]
 186   --enable-libtheora       enable Theora encoding via libtheora [no]
 187   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 188   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 189   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 190                            native implementation exists [no]
 191   --enable-libvpx          enable VP8 support via libvpx [no]
 192   --enable-libx264         enable H.264 encoding via x264 [no]
 193   --enable-libxavs         enable AVS encoding via xavs [no]
 194   --enable-libxvid         enable Xvid encoding via xvidcore,
 195                            native MPEG-4/Xvid encoder exists [no]
 196   --enable-openssl         enable openssl [no]
 197   --enable-zlib            enable zlib [autodetect]
 198
 199 Advanced options (experts only):
 200   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 201   --enable-cross-compile   assume a cross-compiler is used
 202   --sysroot=PATH           root of cross-build tree
 203   --sysinclude=PATH        location of cross-build system headers
 204   --target-os=OS           compiler targets OS [$target_os]
 205   --target-exec=CMD        command to run executables on target
 206   --target-path=DIR        path to view of build directory on target
 207   --nm=NM                  use nm tool
 208   --ar=AR                  use archive tool AR [$ar_default]
 209   --as=AS                  use assembler AS [$as_default]
 210   --cc=CC                  use C compiler CC [$cc_default]
 211   --ld=LD                  use linker LD
 212   --host-cc=HOSTCC         use host C compiler HOSTCC
 213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 215   --host-libs=HLIBS        use libs HLIBS when linking for host
 216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 217   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 218   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 219   --extra-version=STRING   version string suffix []
 220   --optflags               override optimization-related compiler flags
 221   --build-suffix=SUFFIX    library name suffix []
 222   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 223   --arch=ARCH              select architecture [$arch]
 224   --cpu=CPU                select the minimum required CPU (affects
 225                            instruction selection, may crash on older CPUs)
 226   --enable-pic             build position-independent code
 227   --enable-sram            allow use of on-chip SRAM
 228   --disable-symver         disable symbol versioning
 229   --disable-fastdiv        disable table-based division
 230   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 231   --disable-safe-bitstream-reader
 232                            disable buffer boundary checking in bitreaders
 233                            (faster, but may crash)
 234   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 235
 236 Optimization options (experts only):
 237   --disable-asm            disable all assembler optimizations
 238   --disable-altivec        disable AltiVec optimizations
 239   --disable-amd3dnow       disable 3DNow! optimizations
 240   --disable-amd3dnowext    disable 3DNow! extended optimizations
 241   --disable-mmx            disable MMX optimizations
 242   --disable-mmx2           disable MMX2 optimizations
 243   --disable-sse            disable SSE optimizations
 244   --disable-ssse3          disable SSSE3 optimizations
 245   --disable-avx            disable AVX optimizations
 246   --disable-armv5te        disable armv5te optimizations
 247   --disable-armv6          disable armv6 optimizations
 248   --disable-armv6t2        disable armv6t2 optimizations
 249   --disable-armvfp         disable ARM VFP optimizations
 250   --disable-mmi            disable MMI optimizations
 251   --disable-neon           disable NEON optimizations
 252   --disable-vis            disable VIS optimizations
 253   --disable-yasm           disable use of yasm assembler
 254
 255 Developer options (useful when working on Libav itself):
 256   --disable-debug          disable debugging symbols
 257   --enable-debug=LEVEL     set the debug level [$debuglevel]
 258   --disable-optimizations  disable compiler optimizations
 259   --enable-extra-warnings  enable more compiler warnings
 260   --samples=PATH           location of test samples for FATE, if not set use
 261                            \$FATE_SAMPLES at make invocation time.
 262   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 263                            should be used only for debugging purposes)
 264
 265 NOTE: Object files are built at the place where configure is launched.
 266 EOF
 267   exit 0
 268 }
 269
 270 quotes='""'
 271
 272 log(){
 273     echo "$@" >> $logfile
 274 }
 275
 276 log_file(){
 277     log BEGIN $1
 278     pr -n -t $1 >> $logfile
 279     log END $1
 280 }
 281
 282 echolog(){
 283     log "$@"
 284     echo "$@"
 285 }
 286
 287 warn(){
 288     log "WARNING: $*"
 289     WARNINGS="${WARNINGS}WARNING: $*\n"
 290 }
 291
 292 die(){
 293     echolog "$@"
 294     cat <<EOF
 295
 296 If you think configure made a mistake, make sure you are using the latest
 297 version from Git.  If the latest version fails, report the problem to the
 298 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 299 EOF
 300     if disabled logging; then
 301         cat <<EOF
 302 Rerun configure with logging enabled (do not use --disable-logging), and
 303 include the log this produces with your report.
 304 EOF
 305     else
 306 cat <<EOF
 307 Include the log file "$logfile" produced by configure as this will help
 308 solving the problem.
 309 EOF
 310     fi
 311     exit 1
 312 }
 313
 314 # Avoid locale weirdness, besides we really just want to translate ASCII.
 315 toupper(){
 316     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 317 }
 318
 319 tolower(){
 320     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 321 }
 322
 323 c_escape(){
 324     echo "$*" | sed 's/["\\]/\\\0/g'
 325 }
 326
 327 sh_quote(){
 328     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 329     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 330     echo "$v"
 331 }
 332
 333 cleanws(){
 334     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 335 }
 336
 337 filter(){
 338     pat=$1
 339     shift
 340     for v; do
 341         eval "case $v in $pat) echo $v ;; esac"
 342     done
 343 }
 344
 345 filter_out(){
 346     pat=$1
 347     shift
 348     for v; do
 349         eval "case $v in $pat) ;; *) echo $v ;; esac"
 350     done
 351 }
 352
 353 map(){
 354     m=$1
 355     shift
 356     for v; do eval $m; done
 357 }
 358
 359 set_all(){
 360     value=$1
 361     shift
 362     for var in $*; do
 363         eval $var=$value
 364     done
 365 }
 366
 367 set_weak(){
 368     value=$1
 369     shift
 370     for var; do
 371         eval : \${$var:=$value}
 372     done
 373 }
 374
 375 set_safe(){
 376     var=$1
 377     shift
 378     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 379 }
 380
 381 get_safe(){
 382     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 383 }
 384
 385 pushvar(){
 386     for var in $*; do
 387         eval level=\${${var}_level:=0}
 388         eval ${var}_${level}="\$$var"
 389         eval ${var}_level=$(($level+1))
 390     done
 391 }
 392
 393 popvar(){
 394     for var in $*; do
 395         eval level=\${${var}_level:-0}
 396         test $level = 0 && continue
 397         eval level=$(($level-1))
 398         eval $var="\${${var}_${level}}"
 399         eval ${var}_level=$level
 400         eval unset ${var}_${level}
 401     done
 402 }
 403
 404 enable(){
 405     set_all yes $*
 406 }
 407
 408 disable(){
 409     set_all no $*
 410 }
 411
 412 enable_weak(){
 413     set_weak yes $*
 414 }
 415
 416 disable_weak(){
 417     set_weak no $*
 418 }
 419
 420 enable_safe(){
 421     for var; do
 422         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 423     done
 424 }
 425
 426 disable_safe(){
 427     for var; do
 428         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 429     done
 430 }
 431
 432 do_enable_deep(){
 433     for var; do
 434         enabled $var && continue
 435         eval sel="\$${var}_select"
 436         eval sgs="\$${var}_suggest"
 437         pushvar var sgs
 438         enable_deep $sel
 439         popvar sgs
 440         enable_deep_weak $sgs
 441         popvar var
 442     done
 443 }
 444
 445 enable_deep(){
 446     do_enable_deep $*
 447     enable $*
 448 }
 449
 450 enable_deep_weak(){
 451     do_enable_deep $*
 452     enable_weak $*
 453 }
 454
 455 enabled(){
 456     test "${1#!}" = "$1" && op== || op=!=
 457     eval test "x\$${1#!}" $op "xyes"
 458 }
 459
 460 disabled(){
 461     test "${1#!}" = "$1" && op== || op=!=
 462     eval test "x\$${1#!}" $op "xno"
 463 }
 464
 465 enabled_all(){
 466     for opt; do
 467         enabled $opt || return 1
 468     done
 469 }
 470
 471 disabled_all(){
 472     for opt; do
 473         disabled $opt || return 1
 474     done
 475 }
 476
 477 enabled_any(){
 478     for opt; do
 479         enabled $opt && return 0
 480     done
 481 }
 482
 483 disabled_any(){
 484     for opt; do
 485         disabled $opt && return 0
 486     done
 487     return 1
 488 }
 489
 490 set_default(){
 491     for opt; do
 492         eval : \${$opt:=\$${opt}_default}
 493     done
 494 }
 495
 496 is_in(){
 497     value=$1
 498     shift
 499     for var in $*; do
 500         [ $var = $value ] && return 0
 501     done
 502     return 1
 503 }
 504
 505 check_deps(){
 506     for cfg; do
 507         cfg="${cfg#!}"
 508         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 509         disabled ${cfg}_checking && continue
 510         enable ${cfg}_checking
 511
 512         eval dep_all="\$${cfg}_deps"
 513         eval dep_any="\$${cfg}_deps_any"
 514         eval dep_sel="\$${cfg}_select"
 515         eval dep_sgs="\$${cfg}_suggest"
 516         eval dep_ifa="\$${cfg}_if"
 517         eval dep_ifn="\$${cfg}_if_any"
 518
 519         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 520         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 521         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 522
 523         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 524         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 525         enabled_all  $dep_all || disable $cfg
 526         enabled_any  $dep_any || disable $cfg
 527         disabled_any $dep_sel && disable $cfg
 528
 529         if enabled $cfg; then
 530             eval dep_extralibs="\$${cfg}_extralibs"
 531             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 532             enable_deep $dep_sel
 533             enable_deep_weak $dep_sgs
 534         fi
 535
 536         disable ${cfg}_checking
 537     done
 538 }
 539
 540 print_config_h(){
 541     enabled $1 && v=1 || v=0
 542     echo "#define $2 $v"
 543 }
 544
 545 print_config_mak(){
 546     enabled $1 && v= || v=!
 547     echo "$v$2=yes"
 548 }
 549
 550 print_config_asm(){
 551     enabled $1 && v=1 || v=0
 552     echo "%define $2 $v"
 553 }
 554
 555 print_config(){
 556     pfx=$1
 557     files=$2
 558     shift 2
 559     for cfg; do
 560         ucname="$(toupper $cfg)"
 561         for f in $files; do
 562             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 563         done
 564     done
 565 }
 566
 567 print_enabled(){
 568     test "$1" = -n && end=" " && shift || end="\n"
 569     suf=$1
 570     shift
 571     for v; do
 572         enabled $v && printf "%s$end" ${v%$suf};
 573     done
 574 }
 575
 576 append(){
 577     var=$1
 578     shift
 579     eval "$var=\"\$$var $*\""
 580 }
 581
 582 prepend(){
 583     var=$1
 584     shift
 585     eval "$var=\"$* \$$var\""
 586 }
 587
 588 add_cppflags(){
 589     append CPPFLAGS $($filter_cppflags "$@")
 590 }
 591
 592 add_cflags(){
 593     append CFLAGS $($filter_cflags "$@")
 594 }
 595
 596 add_asflags(){
 597     append ASFLAGS $($filter_asflags "$@")
 598 }
 599
 600 add_ldflags(){
 601     append LDFLAGS "$@"
 602 }
 603
 604 add_extralibs(){
 605     prepend extralibs "$@"
 606 }
 607
 608 check_cmd(){
 609     log "$@"
 610     "$@" >> $logfile 2>&1
 611 }
 612
 613 check_cc(){
 614     log check_cc "$@"
 615     cat > $TMPC
 616     log_file $TMPC
 617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 618 }
 619
 620 check_cpp(){
 621     log check_cpp "$@"
 622     cat > $TMPC
 623     log_file $TMPC
 624     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 625 }
 626
 627 check_as(){
 628     log check_as "$@"
 629     cat > $TMPC
 630     log_file $TMPC
 631     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 632 }
 633
 634 check_asm(){
 635     log check_asm "$@"
 636     name="$1"
 637     code="$2"
 638     shift 2
 639     disable $name
 640     check_as "$@" <<EOF && enable $name
 641 void foo(void){ __asm__ volatile($code); }
 642 EOF
 643 }
 644
 645 check_yasm(){
 646     log check_yasm "$@"
 647     echo "$1" > $TMPS
 648     log_file $TMPS
 649     shift 1
 650     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 651 }
 652
 653 check_ld(){
 654     log check_ld "$@"
 655     flags=''
 656     libs=''
 657     for f; do
 658         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 659     done
 660     check_cc $($filter_cflags $flags) || return
 661     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 662 }
 663
 664 check_cppflags(){
 665     log check_cppflags "$@"
 666     set -- $($filter_cppflags "$@")
 667     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 668 int x;
 669 EOF
 670 }
 671
 672 check_cflags(){
 673     log check_cflags "$@"
 674     set -- $($filter_cflags "$@")
 675     check_cc "$@" <<EOF && append CFLAGS "$@"
 676 int x;
 677 EOF
 678 }
 679
 680 test_ldflags(){
 681     log test_ldflags "$@"
 682     check_ld "$@" <<EOF
 683 int main(void){ return 0; }
 684 EOF
 685 }
 686
 687 check_ldflags(){
 688     log check_ldflags "$@"
 689     test_ldflags "$@" && add_ldflags "$@"
 690 }
 691
 692 check_header(){
 693     log check_header "$@"
 694     header=$1
 695     shift
 696     disable_safe $header
 697     check_cpp "$@" <<EOF && enable_safe $header
 698 #include <$header>
 699 int x;
 700 EOF
 701 }
 702
 703 check_func(){
 704     log check_func "$@"
 705     func=$1
 706     shift
 707     disable $func
 708     check_ld "$@" <<EOF && enable $func
 709 extern int $func();
 710 int main(void){ $func(); }
 711 EOF
 712 }
 713
 714 check_mathfunc(){
 715     log check_mathfunc "$@"
 716     func=$1
 717     shift
 718     disable $func
 719     check_ld "$@" <<EOF && enable $func
 720 #include <math.h>
 721 float foo(float f) { return $func(f); }
 722 int main(void){ return 0; }
 723 EOF
 724 }
 725
 726 check_func_headers(){
 727     log check_func_headers "$@"
 728     headers=$1
 729     funcs=$2
 730     shift 2
 731     {
 732         for hdr in $headers; do
 733             echo "#include <$hdr>"
 734         done
 735         for func in $funcs; do
 736             echo "long check_$func(void) { return (long) $func; }"
 737         done
 738         echo "int main(void) { return 0; }"
 739     } | check_ld "$@" && enable $funcs && enable_safe $headers
 740 }
 741
 742 check_cpp_condition(){
 743     log check_cpp_condition "$@"
 744     header=$1
 745     condition=$2
 746     shift 2
 747     check_cpp $($filter_cppflags "$@") <<EOF
 748 #include <$header>
 749 #if !($condition)
 750 #error "unsatisfied condition: $condition"
 751 #endif
 752 EOF
 753 }
 754
 755 check_lib(){
 756     log check_lib "$@"
 757     header="$1"
 758     func="$2"
 759     shift 2
 760     check_header $header && check_func $func "$@" && add_extralibs "$@"
 761 }
 762
 763 check_lib2(){
 764     log check_lib2 "$@"
 765     headers="$1"
 766     funcs="$2"
 767     shift 2
 768     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 769 }
 770
 771 check_pkg_config(){
 772     log check_pkg_config "$@"
 773     pkg="$1"
 774     headers="$2"
 775     funcs="$3"
 776     shift 3
 777     $pkg_config --exists $pkg || return
 778     pkg_cflags=$($pkg_config --cflags $pkg)
 779     pkg_libs=$($pkg_config --libs $pkg)
 780     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 781         set_safe ${pkg}_cflags $pkg_cflags   &&
 782         set_safe ${pkg}_libs   $pkg_libs
 783 }
 784
 785 check_exec(){
 786     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 787 }
 788
 789 check_exec_crash(){
 790     code=$(cat)
 791
 792     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 793     # are safe but may not be available everywhere.  Thus we use
 794     # raise(SIGTERM) instead.  The check is run in a subshell so we
 795     # can redirect the "Terminated" message from the shell.  SIGBUS
 796     # is not defined by standard C so it is used conditionally.
 797
 798     (check_exec "$@") >> $logfile 2>&1 <<EOF
 799 #include <signal.h>
 800 static void sighandler(int sig){
 801     raise(SIGTERM);
 802 }
 803 int main(void){
 804     signal(SIGILL, sighandler);
 805     signal(SIGFPE, sighandler);
 806     signal(SIGSEGV, sighandler);
 807 #ifdef SIGBUS
 808     signal(SIGBUS, sighandler);
 809 #endif
 810     { $code }
 811 }
 812 EOF
 813 }
 814
 815 check_type(){
 816     log check_type "$@"
 817     headers=$1
 818     type=$2
 819     shift 2
 820     disable_safe "$type"
 821     incs=""
 822     for hdr in $headers; do
 823         incs="$incs
 824 #include <$hdr>"
 825     done
 826     check_cc "$@" <<EOF && enable_safe "$type"
 827 $incs
 828 $type v;
 829 EOF
 830 }
 831
 832 check_struct(){
 833     log check_type "$@"
 834     headers=$1
 835     struct=$2
 836     member=$3
 837     shift 3
 838     disable_safe "${struct}_${member}"
 839     incs=""
 840     for hdr in $headers; do
 841         incs="$incs
 842 #include <$hdr>"
 843     done
 844     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 845 $incs
 846 const void *p = &(($struct *)0)->$member;
 847 EOF
 848 }
 849
 850 require(){
 851     name="$1"
 852     header="$2"
 853     func="$3"
 854     shift 3
 855     check_lib $header $func "$@" || die "ERROR: $name not found"
 856 }
 857
 858 require2(){
 859     name="$1"
 860     headers="$2"
 861     func="$3"
 862     shift 3
 863     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 864 }
 865
 866 require_pkg_config(){
 867     pkg="$1"
 868     check_pkg_config "$@" || die "ERROR: $pkg not found"
 869     add_cflags    $(get_safe ${pkg}_cflags)
 870     add_extralibs $(get_safe ${pkg}_libs)
 871 }
 872
 873 check_host_cc(){
 874     log check_host_cc "$@"
 875     cat > $TMPC
 876     log_file $TMPC
 877     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 878 }
 879
 880 check_host_cflags(){
 881     log check_host_cflags "$@"
 882     check_host_cc "$@" <<EOF && append host_cflags "$@"
 883 int x;
 884 EOF
 885 }
 886
 887 apply(){
 888     file=$1
 889     shift
 890     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 891 }
 892
 893 cp_if_changed(){
 894     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 895     mkdir -p "$(dirname $2)"
 896     cp -f "$1" "$2"
 897 }
 898
 899 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 900 # system-dependent things.
 901
 902 COMPONENT_LIST="
 903     bsfs
 904     decoders
 905     demuxers
 906     encoders
 907     filters
 908     hwaccels
 909     indevs
 910     muxers
 911     outdevs
 912     parsers
 913     protocols
 914 "
 915
 916 PROGRAM_LIST="
 917     avconv
 918     avplay
 919     avprobe
 920     avserver
 921 "
 922
 923 CONFIG_LIST="
 924     $COMPONENT_LIST
 925     $PROGRAM_LIST
 926     ac3dsp
 927     avcodec
 928     avdevice
 929     avfilter
 930     avformat
 931     avresample
 932     avisynth
 933     bzlib
 934     dct
 935     doc
 936     dwt
 937     dxva2
 938     fastdiv
 939     fft
 940     frei0r
 941     gnutls
 942     gpl
 943     gray
 944     hardcoded_tables
 945     libcdio
 946     libdc1394
 947     libfaac
 948     libfreetype
 949     libgsm
 950     libmp3lame
 951     libnut
 952     libopencore_amrnb
 953     libopencore_amrwb
 954     libopencv
 955     libopenjpeg
 956     libpulse
 957     librtmp
 958     libschroedinger
 959     libspeex
 960     libtheora
 961     libvo_aacenc
 962     libvo_amrwbenc
 963     libvorbis
 964     libvpx
 965     libx264
 966     libxavs
 967     libxvid
 968     lsp
 969     mdct
 970     memalign_hack
 971     mpegaudiodsp
 972     network
 973     nonfree
 974     openssl
 975     pic
 976     rdft
 977     rtpdec
 978     runtime_cpudetect
 979     safe_bitstream_reader
 980     shared
 981     sinewin
 982     small
 983     sram
 984     static
 985     swscale
 986     swscale_alpha
 987     thumb
 988     vaapi
 989     vda
 990     vdpau
 991     version3
 992     xmm_clobber_test
 993     x11grab
 994     zlib
 995 "
 996
 997 THREADS_LIST='
 998     pthreads
 999     w32threads
1000 '
1001
1002 ARCH_LIST='
1003     alpha
1004     arm
1005     avr32
1006     avr32_ap
1007     avr32_uc
1008     bfin
1009     ia64
1010     m68k
1011     mips
1012     mips64
1013     parisc
1014     ppc
1015     ppc64
1016     s390
1017     sh4
1018     sparc
1019     sparc64
1020     tomi
1021     x86
1022     x86_32
1023     x86_64
1024 '
1025
1026 ARCH_EXT_LIST='
1027     altivec
1028     amd3dnow
1029     amd3dnowext
1030     armv5te
1031     armv6
1032     armv6t2
1033     armvfp
1034     avx
1035     mmi
1036     mmx
1037     mmx2
1038     neon
1039     ppc4xx
1040     sse
1041     ssse3
1042     vfpv3
1043     vis
1044 '
1045
1046 HAVE_LIST_PUB='
1047     bigendian
1048     fast_unaligned
1049 '
1050
1051 HAVE_LIST="
1052     $ARCH_EXT_LIST
1053     $HAVE_LIST_PUB
1054     $THREADS_LIST
1055     aligned_stack
1056     alsa_asoundlib_h
1057     altivec_h
1058     arpa_inet_h
1059     asm_mod_y
1060     attribute_may_alias
1061     attribute_packed
1062     closesocket
1063     cmov
1064     dcbzl
1065     dev_bktr_ioctl_bt848_h
1066     dev_bktr_ioctl_meteor_h
1067     dev_ic_bt8xx_h
1068     dev_video_bktr_ioctl_bt848_h
1069     dev_video_meteor_ioctl_meteor_h
1070     dlfcn_h
1071     dlopen
1072     dos_paths
1073     ebp_available
1074     ebx_available
1075     exp2
1076     exp2f
1077     fast_64bit
1078     fast_clz
1079     fast_cmov
1080     fcntl
1081     fork
1082     getaddrinfo
1083     gethrtime
1084     GetProcessAffinityMask
1085     GetProcessMemoryInfo
1086     GetProcessTimes
1087     getrusage
1088     gnu_as
1089     ibm_asm
1090     inet_aton
1091     inline_asm
1092     isatty
1093     ldbrx
1094     libdc1394_1
1095     libdc1394_2
1096     llrint
1097     llrintf
1098     local_aligned_16
1099     local_aligned_8
1100     localtime_r
1101     log2
1102     log2f
1103     loongson
1104     lrint
1105     lrintf
1106     machine_ioctl_bt848_h
1107     machine_ioctl_meteor_h
1108     malloc_h
1109     MapViewOfFile
1110     memalign
1111     mkstemp
1112     mmap
1113     poll_h
1114     posix_memalign
1115     round
1116     roundf
1117     sched_getaffinity
1118     sdl
1119     sdl_video_size
1120     setmode
1121     setrlimit
1122     sndio_h
1123     socklen_t
1124     soundcard_h
1125     strerror_r
1126     strptime
1127     strtok_r
1128     struct_addrinfo
1129     struct_ipv6_mreq
1130     struct_rusage_ru_maxrss
1131     struct_sockaddr_in6
1132     struct_sockaddr_sa_len
1133     struct_sockaddr_storage
1134     struct_v4l2_frmivalenum_discrete
1135     symver
1136     symver_asm_label
1137     symver_gnu_asm
1138     sysconf
1139     sysctl
1140     sys_mman_h
1141     sys_param_h
1142     sys_resource_h
1143     sys_select_h
1144     sys_soundcard_h
1145     sys_videoio_h
1146     threads
1147     trunc
1148     truncf
1149     vfp_args
1150     VirtualAlloc
1151     winsock2_h
1152     xform_asm
1153     xmm_clobbers
1154     yasm
1155 "
1156
1157 # options emitted with CONFIG_ prefix but not available on command line
1158 CONFIG_EXTRA="
1159     aandct
1160     avutil
1161     golomb
1162     gplv3
1163     h264chroma
1164     h264dsp
1165     h264pred
1166     h264qpel
1167     huffman
1168     lgplv3
1169     lpc
1170 "
1171
1172 CMDLINE_SELECT="
1173     $ARCH_EXT_LIST
1174     $CONFIG_LIST
1175     $THREADS_LIST
1176     asm
1177     cross_compile
1178     debug
1179     extra_warnings
1180     logging
1181     optimizations
1182     symver
1183     yasm
1184 "
1185
1186 PATHS_LIST='
1187     bindir
1188     datadir
1189     incdir
1190     libdir
1191     mandir
1192     prefix
1193     shlibdir
1194 '
1195
1196 CMDLINE_SET="
1197     $PATHS_LIST
1198     ar
1199     arch
1200     as
1201     build_suffix
1202     cc
1203     cpu
1204     cross_prefix
1205     dep_cc
1206     extra_version
1207     host_cc
1208     host_cflags
1209     host_ldflags
1210     host_libs
1211     host_os
1212     ld
1213     logfile
1214     malloc_prefix
1215     nm
1216     optflags
1217     pkg_config
1218     samples
1219     sysinclude
1220     sysroot
1221     target_exec
1222     target_os
1223     target_path
1224 "
1225
1226 CMDLINE_APPEND="
1227     extra_cflags
1228 "
1229
1230 # code dependency declarations
1231
1232 # architecture extensions
1233
1234 armv5te_deps="arm"
1235 armv6_deps="arm"
1236 armv6t2_deps="arm"
1237 armvfp_deps="arm"
1238 neon_deps="arm"
1239 vfpv3_deps="armvfp"
1240
1241 mmi_deps="mips"
1242
1243 altivec_deps="ppc"
1244 ppc4xx_deps="ppc"
1245
1246 vis_deps="sparc"
1247
1248 x86_64_suggest="cmov fast_cmov"
1249 amd3dnow_deps="mmx"
1250 amd3dnowext_deps="amd3dnow"
1251 mmx_deps="x86"
1252 mmx2_deps="mmx"
1253 sse_deps="mmx"
1254 ssse3_deps="sse"
1255 avx_deps="ssse3"
1256
1257 aligned_stack_if_any="ppc x86"
1258 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1259 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1260 fast_unaligned_if_any="armv6 ppc x86"
1261
1262 inline_asm_deps="!tms470"
1263 need_memalign="altivec neon sse"
1264
1265 symver_if_any="symver_asm_label symver_gnu_asm"
1266
1267 # subsystems
1268 dct_select="rdft"
1269 mdct_select="fft"
1270 rdft_select="fft"
1271 mpegaudiodsp_select="dct"
1272
1273 # decoders / encoders / hardware accelerators
1274 aac_decoder_select="mdct sinewin"
1275 aac_encoder_select="mdct sinewin"
1276 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1277 ac3_decoder_select="mdct ac3dsp ac3_parser"
1278 ac3_encoder_select="mdct ac3dsp"
1279 ac3_fixed_encoder_select="mdct ac3dsp"
1280 alac_encoder_select="lpc"
1281 amrnb_decoder_select="lsp"
1282 amrwb_decoder_select="lsp"
1283 atrac1_decoder_select="mdct sinewin"
1284 atrac3_decoder_select="mdct"
1285 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1286 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1287 cavs_decoder_select="golomb"
1288 cook_decoder_select="mdct sinewin"
1289 cscd_decoder_suggest="zlib"
1290 dca_decoder_select="mdct"
1291 dnxhd_encoder_select="aandct"
1292 dxa_decoder_select="zlib"
1293 eac3_decoder_select="ac3_decoder"
1294 eac3_encoder_select="mdct ac3dsp"
1295 eamad_decoder_select="aandct"
1296 eatgq_decoder_select="aandct"
1297 eatqi_decoder_select="aandct"
1298 ffv1_decoder_select="golomb"
1299 flac_decoder_select="golomb"
1300 flac_encoder_select="golomb lpc"
1301 flashsv_decoder_select="zlib"
1302 flashsv_encoder_select="zlib"
1303 flashsv2_decoder_select="zlib"
1304 flv_decoder_select="h263_decoder"
1305 flv_encoder_select="h263_encoder"
1306 fraps_decoder_select="huffman"
1307 h261_encoder_select="aandct"
1308 h263_decoder_select="h263_parser"
1309 h263_encoder_select="aandct"
1310 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1311 h263i_decoder_select="h263_decoder"
1312 h263p_encoder_select="h263_encoder"
1313 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1314 h264_dxva2_hwaccel_deps="dxva2api_h"
1315 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1316 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1317 h264_vda_hwaccel_select="vda h264_decoder"
1318 h264_vdpau_decoder_select="vdpau h264_decoder"
1319 imc_decoder_select="fft mdct sinewin"
1320 jpegls_decoder_select="golomb"
1321 jpegls_encoder_select="golomb"
1322 ljpeg_encoder_select="aandct"
1323 loco_decoder_select="golomb"
1324 mjpeg_encoder_select="aandct"
1325 mlp_decoder_select="mlp_parser"
1326 mp1_decoder_select="mpegaudiodsp"
1327 mp1float_decoder_select="mpegaudiodsp"
1328 mp2_decoder_select="mpegaudiodsp"
1329 mp2float_decoder_select="mpegaudiodsp"
1330 mp3_decoder_select="mpegaudiodsp"
1331 mp3adu_decoder_select="mpegaudiodsp"
1332 mp3adufloat_decoder_select="mpegaudiodsp"
1333 mp3float_decoder_select="mpegaudiodsp"
1334 mp3on4_decoder_select="mpegaudiodsp"
1335 mp3on4float_decoder_select="mpegaudiodsp"
1336 mpc7_decoder_select="mpegaudiodsp"
1337 mpc8_decoder_select="mpegaudiodsp"
1338 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1339 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1340 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1341 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1342 mpeg1video_encoder_select="aandct"
1343 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1344 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1345 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1346 mpeg2video_encoder_select="aandct"
1347 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1348 mpeg4_encoder_select="h263_encoder"
1349 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1350 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1351 msmpeg4v1_decoder_select="h263_decoder"
1352 msmpeg4v1_encoder_select="h263_encoder"
1353 msmpeg4v2_decoder_select="h263_decoder"
1354 msmpeg4v2_encoder_select="h263_encoder"
1355 msmpeg4v3_decoder_select="h263_decoder"
1356 msmpeg4v3_encoder_select="h263_encoder"
1357 nellymoser_decoder_select="mdct sinewin"
1358 nellymoser_encoder_select="mdct sinewin"
1359 png_decoder_select="zlib"
1360 png_encoder_select="zlib"
1361 qcelp_decoder_select="lsp"
1362 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1363 ra_144_encoder_select="lpc"
1364 ralf_decoder_select="golomb"
1365 rv10_decoder_select="h263_decoder"
1366 rv10_encoder_select="h263_encoder"
1367 rv20_decoder_select="h263_decoder"
1368 rv20_encoder_select="h263_encoder"
1369 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1370 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1371 shorten_decoder_select="golomb"
1372 sipr_decoder_select="lsp"
1373 snow_decoder_select="dwt"
1374 snow_encoder_select="aandct dwt"
1375 svq1_encoder_select="aandct"
1376 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1377 svq3_decoder_suggest="zlib"
1378 theora_decoder_select="vp3_decoder"
1379 tiff_decoder_suggest="zlib"
1380 tiff_encoder_suggest="zlib"
1381 truehd_decoder_select="mlp_decoder"
1382 tscc_decoder_select="zlib"
1383 twinvq_decoder_select="mdct lsp sinewin"
1384 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1385 vc1_dxva2_hwaccel_deps="dxva2api_h"
1386 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1387 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1388 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1389 vc1image_decoder_select="vc1_decoder"
1390 vorbis_decoder_select="mdct"
1391 vorbis_encoder_select="mdct"
1392 vp6_decoder_select="huffman"
1393 vp6a_decoder_select="vp6_decoder"
1394 vp6f_decoder_select="vp6_decoder"
1395 vp8_decoder_select="h264pred h264qpel"
1396 wmapro_decoder_select="mdct sinewin"
1397 wmav1_decoder_select="mdct sinewin"
1398 wmav1_encoder_select="mdct sinewin"
1399 wmav2_decoder_select="mdct sinewin"
1400 wmav2_encoder_select="mdct sinewin"
1401 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1402 wmv1_decoder_select="h263_decoder"
1403 wmv1_encoder_select="h263_encoder"
1404 wmv2_decoder_select="h263_decoder"
1405 wmv2_encoder_select="h263_encoder"
1406 wmv3_decoder_select="vc1_decoder"
1407 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1408 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1409 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1410 wmv3image_decoder_select="wmv3_decoder"
1411 zerocodec_decoder_select="zlib"
1412 zlib_decoder_select="zlib"
1413 zlib_encoder_select="zlib"
1414 zmbv_decoder_select="zlib"
1415 zmbv_encoder_select="zlib"
1416
1417 vaapi_deps="va_va_h"
1418 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1419 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1420
1421 # parsers
1422 h264_parser_select="golomb h264dsp h264pred"
1423
1424 # external libraries
1425 libfaac_encoder_deps="libfaac"
1426 libgsm_decoder_deps="libgsm"
1427 libgsm_encoder_deps="libgsm"
1428 libgsm_ms_decoder_deps="libgsm"
1429 libgsm_ms_encoder_deps="libgsm"
1430 libmp3lame_encoder_deps="libmp3lame"
1431 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1432 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1433 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1434 libopenjpeg_decoder_deps="libopenjpeg"
1435 libschroedinger_decoder_deps="libschroedinger"
1436 libschroedinger_encoder_deps="libschroedinger"
1437 libspeex_decoder_deps="libspeex"
1438 libspeex_encoder_deps="libspeex"
1439 libtheora_encoder_deps="libtheora"
1440 libvo_aacenc_encoder_deps="libvo_aacenc"
1441 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1442 libvorbis_encoder_deps="libvorbis"
1443 libvpx_decoder_deps="libvpx"
1444 libvpx_encoder_deps="libvpx"
1445 libx264_encoder_deps="libx264"
1446 libxavs_encoder_deps="libxavs"
1447 libxvid_encoder_deps="libxvid"
1448
1449 # demuxers / muxers
1450 ac3_demuxer_select="ac3_parser"
1451 asf_stream_muxer_select="asf_muxer"
1452 avisynth_demuxer_deps="avisynth"
1453 dirac_demuxer_select="dirac_parser"
1454 eac3_demuxer_select="ac3_parser"
1455 flac_demuxer_select="flac_parser"
1456 ipod_muxer_select="mov_muxer"
1457 libnut_demuxer_deps="libnut"
1458 libnut_muxer_deps="libnut"
1459 matroska_audio_muxer_select="matroska_muxer"
1460 matroska_demuxer_suggest="zlib bzlib"
1461 mov_demuxer_suggest="zlib"
1462 mp3_demuxer_select="mpegaudio_parser"
1463 mp4_muxer_select="mov_muxer"
1464 mpegtsraw_demuxer_select="mpegts_demuxer"
1465 mxf_d10_muxer_select="mxf_muxer"
1466 ogg_demuxer_select="golomb"
1467 psp_muxer_select="mov_muxer"
1468 rtp_demuxer_select="sdp_demuxer"
1469 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1470 rtsp_demuxer_select="http_protocol rtpdec"
1471 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1472 sap_demuxer_select="sdp_demuxer"
1473 sap_muxer_select="rtp_muxer rtp_protocol"
1474 sdp_demuxer_select="rtpdec"
1475 spdif_muxer_select="aac_parser"
1476 tg2_muxer_select="mov_muxer"
1477 tgp_muxer_select="mov_muxer"
1478 w64_demuxer_deps="wav_demuxer"
1479
1480 # indevs / outdevs
1481 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1482 alsa_outdev_deps="alsa_asoundlib_h"
1483 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1484 dv1394_indev_deps="dv1394 dv_demuxer"
1485 fbdev_indev_deps="linux_fb_h"
1486 jack_indev_deps="jack_jack_h"
1487 libcdio_indev_deps="libcdio"
1488 libdc1394_indev_deps="libdc1394"
1489 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1490 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1491 pulse_indev_deps="libpulse"
1492 sndio_indev_deps="sndio_h"
1493 sndio_outdev_deps="sndio_h"
1494 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1495 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1496 vfwcap_indev_extralibs="-lavicap32"
1497 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1498
1499 # protocols
1500 gopher_protocol_deps="network"
1501 httpproxy_protocol_deps="network"
1502 httpproxy_protocol_select="tcp_protocol"
1503 http_protocol_deps="network"
1504 http_protocol_select="tcp_protocol"
1505 https_protocol_select="tls_protocol"
1506 librtmp_protocol_deps="librtmp"
1507 librtmpe_protocol_deps="librtmp"
1508 librtmps_protocol_deps="librtmp"
1509 librtmpt_protocol_deps="librtmp"
1510 librtmpte_protocol_deps="librtmp"
1511 mmsh_protocol_select="http_protocol"
1512 mmst_protocol_deps="network"
1513 rtmp_protocol_deps="!librtmp_protocol"
1514 rtmp_protocol_select="tcp_protocol"
1515 rtp_protocol_select="udp_protocol"
1516 tcp_protocol_deps="network"
1517 tls_protocol_deps_any="openssl gnutls"
1518 tls_protocol_select="tcp_protocol"
1519 udp_protocol_deps="network"
1520
1521 # filters
1522 blackframe_filter_deps="gpl"
1523 boxblur_filter_deps="gpl"
1524 cropdetect_filter_deps="gpl"
1525 delogo_filter_deps="gpl"
1526 drawtext_filter_deps="libfreetype"
1527 frei0r_filter_deps="frei0r dlopen strtok_r"
1528 frei0r_filter_extralibs='$ldl'
1529 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1530 frei0r_src_filter_extralibs='$ldl'
1531 hqdn3d_filter_deps="gpl"
1532 ocv_filter_deps="libopencv"
1533 scale_filter_deps="swscale"
1534 yadif_filter_deps="gpl"
1535
1536 # libraries
1537 avdevice_deps="avcodec avformat"
1538 avformat_deps="avcodec"
1539
1540 # programs
1541 avconv_deps="avcodec avfilter avformat avresample swscale"
1542 avplay_deps="avcodec avformat swscale sdl"
1543 avplay_select="rdft"
1544 avprobe_deps="avcodec avformat"
1545 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1546 avserver_extralibs='$ldl'
1547
1548 doc_deps="texi2html"
1549
1550 # tests
1551
1552 test_deps(){
1553     suf1=$1
1554     suf2=$2
1555     shift 2
1556     for v; do
1557         dep=${v%=*}
1558         tests=${v#*=}
1559         for name in ${tests}; do
1560             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1561         done
1562     done
1563 }
1564
1565 mxf_d10_test_deps="avfilter"
1566 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1567
1568 test_deps _encoder _decoder                                             \
1569     adpcm_ima_qt                                                        \
1570     adpcm_ima_wav                                                       \
1571     adpcm_ms                                                            \
1572     adpcm_swf                                                           \
1573     adpcm_yamaha=adpcm_yam                                              \
1574     alac                                                                \
1575     asv1                                                                \
1576     asv2                                                                \
1577     bmp                                                                 \
1578     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1579     dvvideo="dv dv_411 dv50"                                            \
1580     ffv1                                                                \
1581     flac                                                                \
1582     flashsv                                                             \
1583     flv                                                                 \
1584     adpcm_g726=g726                                                     \
1585     gif                                                                 \
1586     h261                                                                \
1587     h263="h263 h263p"                                                   \
1588     huffyuv                                                             \
1589     jpegls                                                              \
1590     mjpeg="jpg mjpeg ljpeg"                                             \
1591     mp2                                                                 \
1592     mpeg1video="mpeg mpeg1b"                                            \
1593     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1594     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1595     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1596     mpeg4="mpeg4thread error rc"                                        \
1597     msmpeg4v3=msmpeg4                                                   \
1598     msmpeg4v2                                                           \
1599     pbm=pbmpipe                                                         \
1600     pcx                                                                 \
1601     pgm="pgm pgmpipe"                                                   \
1602     png                                                                 \
1603     ppm="ppm ppmpipe"                                                   \
1604     rawvideo="rgb yuv"                                                  \
1605     roq                                                                 \
1606     rv10                                                                \
1607     rv20                                                                \
1608     sgi                                                                 \
1609     snow="snow snowll"                                                  \
1610     svq1                                                                \
1611     targa=tga                                                           \
1612     tiff                                                                \
1613     wmav1                                                               \
1614     wmav2                                                               \
1615     wmv1                                                                \
1616     wmv2                                                                \
1617
1618 test_deps _muxer _demuxer                                               \
1619     aiff                                                                \
1620     pcm_alaw=alaw                                                       \
1621     asf                                                                 \
1622     au                                                                  \
1623     avi                                                                 \
1624     dv=dv_fmt                                                           \
1625     ffm                                                                 \
1626     flv=flv_fmt                                                         \
1627     gxf                                                                 \
1628     matroska=mkv                                                        \
1629     mmf                                                                 \
1630     mov                                                                 \
1631     pcm_mulaw=mulaw                                                     \
1632     mxf="mxf mxf_d10"                                                   \
1633     nut                                                                 \
1634     ogg                                                                 \
1635     rawvideo=pixfmt                                                     \
1636     rm                                                                  \
1637     swf                                                                 \
1638     mpegts=ts                                                           \
1639     voc                                                                 \
1640     wav                                                                 \
1641     yuv4mpegpipe=yuv4mpeg                                               \
1642
1643 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1644 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1645
1646 # default parameters
1647
1648 logfile="config.log"
1649
1650 # installation paths
1651 prefix_default="/usr/local"
1652 bindir_default='${prefix}/bin'
1653 datadir_default='${prefix}/share/avconv'
1654 incdir_default='${prefix}/include'
1655 libdir_default='${prefix}/lib'
1656 mandir_default='${prefix}/share/man'
1657 shlibdir_default="$libdir_default"
1658
1659 # toolchain
1660 ar_default="ar"
1661 cc_default="gcc"
1662 cc_version=\"unknown\"
1663 host_cc_default="gcc"
1664 ln_s="ln -sf"
1665 nm_default="nm"
1666 objformat="elf"
1667 pkg_config_default=pkg-config
1668 ranlib="ranlib"
1669 yasmexe="yasm"
1670
1671 nm_opts='-g'
1672 nogas=":"
1673
1674 # machine
1675 arch_default=$(uname -m)
1676 cpu="generic"
1677
1678 # OS
1679 target_os_default=$(tolower $(uname -s))
1680 host_os=$target_os_default
1681
1682 # configurable options
1683 enable $PROGRAM_LIST
1684
1685 enable avcodec
1686 enable avdevice
1687 enable avfilter
1688 enable avformat
1689 enable avresample
1690 enable avutil
1691 enable swscale
1692
1693 enable asm
1694 enable debug
1695 enable doc
1696 enable fastdiv
1697 enable network
1698 enable optimizations
1699 enable safe_bitstream_reader
1700 enable static
1701 enable swscale_alpha
1702
1703 # build settings
1704 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1705 AVSERVERLDFLAGS=-Wl,-E
1706 LIBPREF="lib"
1707 LIBSUF=".a"
1708 FULLNAME='$(NAME)$(BUILDSUF)'
1709 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1710 SLIBPREF="lib"
1711 SLIBSUF=".so"
1712 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1713 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1714 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1715 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1716 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1717 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1718
1719 AS_O='-o $@'
1720 CC_O='-o $@'
1721
1722 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1723 host_libs='-lm'
1724
1725 target_path='$(CURDIR)'
1726
1727 # since the object filename is not given with the -MM flag, the compiler
1728 # is only able to print the basename, and we must add the path ourselves
1729 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1730 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1731
1732 # find source path
1733 if test -f configure; then
1734     source_path=.
1735 else
1736     source_path=$(cd $(dirname "$0"); pwd)
1737     echo "$source_path" | grep -q '[[:blank:]]' &&
1738         die "Out of tree builds are impossible with whitespace in source path."
1739     test -e "$source_path/config.h" &&
1740         die "Out of tree builds are impossible with config.h in source dir."
1741 fi
1742
1743 for v in "$@"; do
1744     r=${v#*=}
1745     l=${v%"$r"}
1746     r=$(sh_quote "$r")
1747     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1748 done
1749
1750 find_things(){
1751     thing=$1
1752     pattern=$2
1753     file=$source_path/$3
1754     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1755 }
1756
1757 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1758 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1759 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1760 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1761 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1762 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1763 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1764 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1765 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1766 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1767 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1768
1769 ALL_COMPONENTS="
1770     $BSF_LIST
1771     $DECODER_LIST
1772     $DEMUXER_LIST
1773     $ENCODER_LIST
1774     $FILTER_LIST
1775     $HWACCEL_LIST
1776     $INDEV_LIST
1777     $MUXER_LIST
1778     $OUTDEV_LIST
1779     $PARSER_LIST
1780     $PROTOCOL_LIST
1781 "
1782
1783 find_tests(){
1784     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1785 }
1786
1787 ACODEC_TESTS=$(find_tests acodec)
1788 VCODEC_TESTS=$(find_tests vsynth1)
1789 LAVF_TESTS=$(find_tests lavf)
1790 LAVFI_TESTS=$(find_tests lavfi)
1791 SEEK_TESTS=$(find_tests seek seek_)
1792
1793 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1794
1795 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1796
1797 for n in $COMPONENT_LIST; do
1798     v=$(toupper ${n%s})_LIST
1799     eval enable \$$v
1800     eval ${n}_if_any="\$$v"
1801 done
1802
1803 enable $ARCH_EXT_LIST $ALL_TESTS
1804
1805 die_unknown(){
1806     echo "Unknown option \"$1\"."
1807     echo "See $0 --help for available options."
1808     exit 1
1809 }
1810
1811 show_list() {
1812     suffix=_$1
1813     shift
1814     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1815     exit 0
1816 }
1817
1818 for opt do
1819     optval="${opt#*=}"
1820     case "$opt" in
1821     --extra-ldflags=*) add_ldflags $optval
1822     ;;
1823     --extra-libs=*) add_extralibs $optval
1824     ;;
1825     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1826     ;;
1827     --enable-debug=*) debuglevel="$optval"
1828     ;;
1829     --disable-everything)
1830     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1831     ;;
1832     --enable-*=*|--disable-*=*)
1833     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1834     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1835     eval list=\$$(toupper $thing)_LIST
1836     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1837     $action $(filter "$name" $list)
1838     ;;
1839     --enable-?*|--disable-?*)
1840     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1841     if is_in $option $COMPONENT_LIST; then
1842         test $action = disable && action=unset
1843         eval $action \$$(toupper ${option%s})_LIST
1844     elif is_in $option $CMDLINE_SELECT; then
1845         $action $option
1846     else
1847         die_unknown $opt
1848     fi
1849     ;;
1850     --list-*)
1851         NAME="${opt#--list-}"
1852         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1853         NAME=${NAME%s}
1854         eval show_list $NAME \$$(toupper $NAME)_LIST
1855     ;;
1856     --help|-h) show_help
1857     ;;
1858     *)
1859     optname="${opt%%=*}"
1860     optname="${optname#--}"
1861     optname=$(echo "$optname" | sed 's/-/_/g')
1862     if is_in $optname $CMDLINE_SET; then
1863         eval $optname='$optval'
1864     elif is_in $optname $CMDLINE_APPEND; then
1865         append $optname "$optval"
1866     else
1867          die_unknown $opt
1868     fi
1869     ;;
1870     esac
1871 done
1872
1873 disabled logging && logfile=/dev/null
1874
1875 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1876 set >> $logfile
1877
1878 test -n "$cross_prefix" && enable cross_compile
1879
1880 if enabled cross_compile; then
1881     test -n "$arch" && test -n "$target_os" ||
1882         die "Must specify target arch and OS when cross-compiling"
1883 fi
1884
1885 set_default arch target_os
1886
1887 ar_default="${cross_prefix}${ar_default}"
1888 cc_default="${cross_prefix}${cc_default}"
1889 nm_default="${cross_prefix}${nm_default}"
1890 pkg_config_default="${cross_prefix}${pkg_config_default}"
1891 ranlib="${cross_prefix}${ranlib}"
1892
1893 sysinclude_default="${sysroot}/usr/include"
1894
1895 set_default cc nm pkg_config sysinclude
1896 enabled cross_compile || host_cc_default=$cc
1897 set_default host_cc
1898
1899 if ! $pkg_config --version >/dev/null 2>&1; then
1900     warn "$pkg_config not found, library detection may fail."
1901     pkg_config=false
1902 fi
1903
1904 exesuf() {
1905     case $1 in
1906         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1907     esac
1908 }
1909
1910 EXESUF=$(exesuf $target_os)
1911 HOSTEXESUF=$(exesuf $host_os)
1912
1913 # set temporary file name
1914 : ${TMPDIR:=$TEMPDIR}
1915 : ${TMPDIR:=$TMP}
1916 : ${TMPDIR:=/tmp}
1917
1918 if ! check_cmd mktemp -u XXXXXX; then
1919     # simple replacement for missing mktemp
1920     # NOT SAFE FOR GENERAL USE
1921     mktemp(){
1922         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1923     }
1924 fi
1925
1926 tmpfile(){
1927     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1928         (set -C; exec > $tmp) 2>/dev/null ||
1929         die "Unable to create temporary file in $TMPDIR."
1930     append TMPFILES $tmp
1931     eval $1=$tmp
1932 }
1933
1934 trap 'rm -f -- $TMPFILES' EXIT
1935
1936 tmpfile TMPASM .asm
1937 tmpfile TMPC   .c
1938 tmpfile TMPE   $EXESUF
1939 tmpfile TMPH   .h
1940 tmpfile TMPO   .o
1941 tmpfile TMPS   .S
1942 tmpfile TMPSH  .sh
1943 tmpfile TMPV   .ver
1944
1945 unset -f mktemp
1946
1947 chmod +x $TMPE
1948
1949 # make sure we can execute files in $TMPDIR
1950 cat > $TMPSH 2>> $logfile <<EOF
1951 #! /bin/sh
1952 EOF
1953 chmod +x $TMPSH >> $logfile 2>&1
1954 if ! $TMPSH >> $logfile 2>&1; then
1955     cat <<EOF
1956 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1957 variable to another directory and make sure that it is not mounted noexec.
1958 EOF
1959     die "Sanity test failed."
1960 fi
1961
1962 filter_asflags=echo
1963 filter_cflags=echo
1964 filter_cppflags=echo
1965
1966 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1967     cc_type=llvm_gcc
1968     cc_version=__VERSION__
1969     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1970     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1971     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1972     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1973     speed_cflags='-O3'
1974     size_cflags='-Os'
1975 elif $cc -v 2>&1 | grep -qi ^gcc; then
1976     cc_type=gcc
1977     cc_version=__VERSION__
1978     gcc_version=$($cc --version | head -n1)
1979     gcc_basever=$($cc -dumpversion)
1980     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1981     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1982     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1983     if ! $cc -dumpversion | grep -q '^2\.'; then
1984         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1985         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1986     fi
1987     speed_cflags='-O3'
1988     size_cflags='-Os'
1989 elif $cc --version 2>/dev/null | grep -q Intel; then
1990     cc_type=icc
1991     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1992     cc_ident=$($cc --version | head -n1)
1993     icc_version=$($cc -dumpversion)
1994     CC_DEPFLAGS='-MMD'
1995     AS_DEPFLAGS='-MMD'
1996     speed_cflags='-O3'
1997     size_cflags='-Os'
1998     noopt_cflags='-O1'
1999 elif $cc -v 2>&1 | grep -q xlc; then
2000     cc_type=xlc
2001     cc_version="AV_STRINGIFY(__IBMC__)"
2002     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2003     speed_cflags='-O5'
2004     size_cflags='-O5 -qcompact'
2005 elif $cc -V 2>/dev/null | grep -q Compaq; then
2006     cc_type=ccc
2007     cc_version="AV_STRINGIFY(__DECC_VER)"
2008     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2009     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2010     debuglevel=3
2011     add_ldflags -Wl,-z,now # calls to libots crash without this
2012     speed_cflags='-fast'
2013     size_cflags='-O1'
2014 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2015     test -d "$sysroot" || die "No valid sysroot specified."
2016     cc_type=armcc
2017     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2018     cc_ident=$($cc --vsn | head -n1)
2019     armcc_conf="$PWD/armcc.conf"
2020     $cc --arm_linux_configure                 \
2021         --arm_linux_config_file="$armcc_conf" \
2022         --configure_sysroot="$sysroot"        \
2023         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2024         die "Error creating armcc configuration file."
2025     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2026     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2027     as_default="${cross_prefix}gcc"
2028     CC_DEPFLAGS='-MMD'
2029     AS_DEPFLAGS='-MMD'
2030     speed_cflags='-O3'
2031     size_cflags='-Os'
2032     filter_asflags="filter_out -W${armcc_opt}*"
2033 elif $cc -version 2>/dev/null | grep -q TMS470; then
2034     cc_type=tms470
2035     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2036     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2037     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2038     CC_O='-fr=$(@D)'
2039     as_default="${cross_prefix}gcc"
2040     ld_default="${cross_prefix}gcc"
2041     TMPO=$(basename $TMPC .c).o
2042     append TMPFILES $TMPO
2043     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2044     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2045     AS_DEPFLAGS='-MMD'
2046     speed_cflags='-O3 -mf=5'
2047     size_cflags='-O3 -mf=2'
2048     filter_cflags=tms470_flags
2049     tms470_flags(){
2050         for flag; do
2051             case $flag in
2052                 -march=*|-mcpu=*)
2053                     case "${flag#*=}" in
2054                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2055                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2056                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2057                         armv6*|arm11*)          echo -mv=6   ;;
2058                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2059                                                 echo -mv=5e  ;;
2060                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2061                     esac
2062                     ;;
2063                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2064                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2065                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2066                 -msoft-float)   echo --float_support=vfplib       ;;
2067                 -O[0-3]|-mf=*)  echo $flag                        ;;
2068                 -g)             echo -g -mn                       ;;
2069                 -pds=*)         echo $flag                        ;;
2070             esac
2071         done
2072     }
2073 elif $cc -v 2>&1 | grep -q clang; then
2074     cc_type=clang
2075     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2076         cc_version=__clang_version__ || cc_version=__VERSION__
2077     cc_ident=$($cc --version | head -n1)
2078     CC_DEPFLAGS='-MMD'
2079     AS_DEPFLAGS='-MMD'
2080     speed_cflags='-O3'
2081     size_cflags='-Os'
2082 elif $cc -V 2>&1 | grep -q Sun; then
2083     cc_type=suncc
2084     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2085     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2086     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2087     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2088     add_ldflags -xc99
2089     speed_cflags='-O5'
2090     size_cflags='-O5 -xspace'
2091     filter_cflags=suncc_flags
2092     suncc_flags(){
2093         for flag; do
2094             case $flag in
2095                 -march=*|-mcpu=*)
2096                     case "${flag#*=}" in
2097                         native)                   echo -xtarget=native       ;;
2098                         v9|niagara)               echo -xarch=sparc          ;;
2099                         ultrasparc)               echo -xarch=sparcvis       ;;
2100                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2101                         i586|pentium)             echo -xchip=pentium        ;;
2102                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2103                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2104                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2105                         pentium4*)          echo -xtarget=pentium4           ;;
2106                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2107                         *-sse3)             echo -xarch=sse3                 ;;
2108                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2109                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2110                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2111                         k8|opteron|athlon64|athlon-fx)
2112                                                   echo -xarch=sse2a          ;;
2113                         athlon*)                  echo -xarch=pentium_proa   ;;
2114                     esac
2115                     ;;
2116                 -std=c99)             echo -xc99              ;;
2117                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2118                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2119                 -W*,*)                echo $flag              ;;
2120                 -f*-*|-W*)                                    ;;
2121                 *)                    echo $flag              ;;
2122             esac
2123         done
2124     }
2125 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2126     cc_type=pathscale
2127     cc_version=__PATHSCALE__
2128     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2129     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2130     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2131     speed_cflags='-O2'
2132     size_cflags='-Os'
2133     filter_cflags='filter_out -Wdisabled-optimization'
2134 elif $cc -v 2>&1 | grep -q Open64; then
2135     cc_type=open64
2136     cc_version=__OPEN64__
2137     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2138     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2139     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2140     speed_cflags='-O2'
2141     size_cflags='-Os'
2142     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2143 elif $cc -V 2>&1 | grep -q Portland; then
2144     cc_type=pgi
2145     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2146     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2147     opt_common='-alias=ansi -Mlre -Mpre'
2148     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2149     size_cflags="-O2 -Munroll=c:1 $opt_common"
2150     noopt_cflags="-O1"
2151     filter_cflags=pgi_flags
2152     pgi_flags(){
2153         for flag; do
2154             case $flag in
2155                 -fomit-frame-pointer) echo -Mnoframe ;;
2156                 -g)                   echo -gopt ;;
2157                 *)                    echo $flag ;;
2158             esac
2159         done
2160     }
2161 fi
2162
2163 test -n "$cc_type" && enable $cc_type ||
2164     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2165
2166 : ${as_default:=$cc}
2167 : ${dep_cc_default:=$cc}
2168 : ${ld_default:=$cc}
2169 set_default ar as dep_cc ld
2170
2171 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2172 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2173
2174 add_cflags $extra_cflags
2175 add_asflags $extra_cflags
2176
2177 if test -n "$sysroot"; then
2178     case "$cc_type" in
2179         gcc|llvm_gcc|clang)
2180             add_cppflags --sysroot="$sysroot"
2181             add_ldflags --sysroot="$sysroot"
2182         ;;
2183         tms470)
2184             add_cppflags -I"$sysinclude"
2185             add_ldflags  --sysroot="$sysroot"
2186         ;;
2187     esac
2188 fi
2189
2190 if test "$cpu" = host; then
2191     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2192
2193     case "$cc_type" in
2194         gcc|llvm_gcc)
2195             check_native(){
2196                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2197                 sed -n "/cc1.*$1=/{
2198                             s/.*$1=\\([^ ]*\\).*/\\1/
2199                             p
2200                             q
2201                         }" $TMPE
2202             }
2203             cpu=$(check_native -march || check_native -mcpu)
2204         ;;
2205     esac
2206
2207     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2208 fi
2209
2210 # Deal with common $arch aliases
2211 case "$arch" in
2212     arm*)
2213         arch="arm"
2214     ;;
2215     mips|mipsel|IP*)
2216         arch="mips"
2217     ;;
2218     mips64*)
2219         arch="mips"
2220         subarch="mips64"
2221     ;;
2222     parisc|hppa)
2223         arch="parisc"
2224     ;;
2225     parisc64|hppa64)
2226         arch="parisc"
2227         subarch="parisc64"
2228     ;;
2229     "Power Macintosh"|ppc|powerpc)
2230         arch="ppc"
2231     ;;
2232     ppc64|powerpc64)
2233         arch="ppc"
2234         subarch="ppc64"
2235     ;;
2236     s390|s390x)
2237         arch="s390"
2238     ;;
2239     sh4|sh)
2240         arch="sh4"
2241     ;;
2242     sun4u|sparc64)
2243         arch="sparc"
2244         subarch="sparc64"
2245     ;;
2246     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2247         arch="x86"
2248     ;;
2249 esac
2250
2251 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2252 enable $arch
2253
2254 # Add processor-specific flags
2255 if test "$cpu" = generic; then
2256     : do nothing
2257 elif enabled ppc; then
2258
2259     case $(tolower $cpu) in
2260         601|ppc601|powerpc601)
2261             cpuflags="-mcpu=601"
2262             disable altivec
2263         ;;
2264         603*|ppc603*|powerpc603*)
2265             cpuflags="-mcpu=603"
2266             disable altivec
2267         ;;
2268         604*|ppc604*|powerpc604*)
2269             cpuflags="-mcpu=604"
2270             disable altivec
2271         ;;
2272         g3|75*|ppc75*|powerpc75*)
2273             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2274             disable altivec
2275         ;;
2276         g4|745*|ppc745*|powerpc745*)
2277             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2278         ;;
2279         74*|ppc74*|powerpc74*)
2280             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2281         ;;
2282         g5|970|ppc970|powerpc970|power4*)
2283             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2284         ;;
2285         cell)
2286             cpuflags="-mcpu=cell"
2287             enable ldbrx
2288         ;;
2289         e500v2)
2290             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2291             disable altivec
2292         ;;
2293         e500)
2294             cpuflags="-mcpu=8540 -mhard-float"
2295             disable altivec
2296         ;;
2297     esac
2298
2299 elif enabled x86; then
2300
2301     case $cpu in
2302         i[345]86|pentium)
2303             cpuflags="-march=$cpu"
2304             disable mmx
2305         ;;
2306         # targets that do NOT support conditional mov (cmov)
2307         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2308             cpuflags="-march=$cpu"
2309             disable cmov
2310         ;;
2311         # targets that do support conditional mov (cmov)
2312         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2313             cpuflags="-march=$cpu"
2314             enable cmov
2315             enable fast_cmov
2316         ;;
2317         # targets that do support conditional mov but on which it's slow
2318         pentium4|pentium4m|prescott|nocona)
2319             cpuflags="-march=$cpu"
2320             enable cmov
2321             disable fast_cmov
2322         ;;
2323     esac
2324
2325 elif enabled sparc; then
2326
2327     case $cpu in
2328         niagara)
2329             cpuflags="-mcpu=$cpu"
2330             disable vis
2331         ;;
2332         sparc64)
2333             cpuflags="-mcpu=v9"
2334         ;;
2335     esac
2336
2337 elif enabled arm; then
2338
2339     case $cpu in
2340         armv*)
2341             cpuflags="-march=$cpu"
2342             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2343         ;;
2344         *)
2345             cpuflags="-mcpu=$cpu"
2346             case $cpu in
2347                 cortex-a*)                               subarch=armv7a  ;;
2348                 cortex-r*)                               subarch=armv7r  ;;
2349                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2350                 arm11*)                                  subarch=armv6   ;;
2351                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2352                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2353             esac
2354         ;;
2355     esac
2356
2357 elif enabled alpha; then
2358
2359     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2360
2361 elif enabled bfin; then
2362
2363     cpuflags="-mcpu=$cpu"
2364
2365 elif enabled mips; then
2366
2367     cpuflags="-march=$cpu"
2368
2369 elif enabled avr32; then
2370
2371     case $cpu in
2372         ap7[02]0[0-2])
2373             subarch="avr32_ap"
2374             cpuflags="-mpart=$cpu"
2375         ;;
2376         ap)
2377             subarch="avr32_ap"
2378             cpuflags="-march=$cpu"
2379         ;;
2380         uc3[ab]*)
2381             subarch="avr32_uc"
2382             cpuflags="-mcpu=$cpu"
2383         ;;
2384         uc)
2385             subarch="avr32_uc"
2386             cpuflags="-march=$cpu"
2387         ;;
2388     esac
2389
2390 fi
2391
2392 add_cflags $cpuflags
2393 add_asflags $cpuflags
2394
2395 # compiler sanity check
2396 check_exec <<EOF
2397 int main(void){ return 0; }
2398 EOF
2399 if test "$?" != 0; then
2400     echo "$cc is unable to create an executable file."
2401     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2402         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2403         echo "Only do this if you know what cross compiling means."
2404     fi
2405     die "C compiler test failed."
2406 fi
2407
2408 add_cppflags -D_ISOC99_SOURCE
2409 check_cflags -std=c99
2410 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2411 #include <stdlib.h>
2412 EOF
2413 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2414 #include <stdlib.h>
2415 EOF
2416
2417 check_host_cflags -std=c99
2418 check_host_cflags -Wall
2419
2420 case "$arch" in
2421     alpha|ia64|mips|parisc|sparc)
2422         spic=$shared
2423     ;;
2424     x86)
2425         subarch="x86_32"
2426         check_cc <<EOF && subarch="x86_64"
2427         int test[(int)sizeof(char*) - 7];
2428 EOF
2429         if test "$subarch" = "x86_64"; then
2430             spic=$shared
2431         fi
2432     ;;
2433 esac
2434
2435 enable $subarch
2436 enabled spic && enable pic
2437
2438 # OS specific
2439 case $target_os in
2440     haiku)
2441         prefix_default="/boot/common"
2442         network_extralibs="-lnetwork"
2443         host_libs=
2444         ;;
2445     sunos)
2446         AVSERVERLDFLAGS=""
2447         SHFLAGS='-shared -Wl,-h,$$(@F)'
2448         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2449         network_extralibs="-lsocket -lnsl"
2450         add_cppflags -D__EXTENSIONS__
2451         # When using suncc to build, the Solaris linker will mark
2452         # an executable with each instruction set encountered by
2453         # the Solaris assembler.  As our libraries contain their own
2454         # guards for processor-specific code, instead suppress
2455         # generation of the HWCAPS ELF section on Solaris x86 only.
2456         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2457         nm_opts='-P -g'
2458         ;;
2459     netbsd)
2460         disable symver
2461         oss_indev_extralibs="-lossaudio"
2462         oss_outdev_extralibs="-lossaudio"
2463         ;;
2464     openbsd)
2465         enable malloc_aligned
2466         # On OpenBSD 4.5. the compiler does not use PIC unless
2467         # explicitly using -fPIC. Libav builds fine without PIC,
2468         # however the generated executable will not do anything
2469         # (simply quits with exit-code 1, no crash, no output).
2470         # Thus explicitly enable PIC here.
2471         enable pic
2472         disable symver
2473         SHFLAGS='-shared'
2474         oss_indev_extralibs="-lossaudio"
2475         oss_outdev_extralibs="-lossaudio"
2476         ;;
2477     dragonfly)
2478         enable malloc_aligned
2479         disable symver
2480         ;;
2481     freebsd)
2482         enable malloc_aligned
2483         ;;
2484     bsd/os)
2485         add_extralibs -lpoll -lgnugetopt
2486         ;;
2487     darwin)
2488         enable malloc_aligned
2489         gas="gas-preprocessor.pl $cc"
2490         enabled ppc && add_asflags -force_cpusubtype_ALL
2491         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2492         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2493         add_ldflags -Wl,-dynamic,-search_paths_first
2494         SLIBSUF=".dylib"
2495         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2496         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2497         AVSERVERLDFLAGS=-Wl,-bind_at_load
2498         objformat="macho"
2499         enabled x86_64 && objformat="macho64"
2500         enabled_any pic shared ||
2501             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2502         ;;
2503     mingw32*)
2504         if test $target_os = "mingw32ce"; then
2505             disable network
2506         else
2507             target_os=mingw32
2508         fi
2509         LIBTARGET=i386
2510         if enabled x86_64; then
2511             enable malloc_aligned
2512             LIBTARGET="i386:x86-64"
2513         elif enabled arm; then
2514             LIBTARGET=arm-wince
2515         fi
2516         shlibdir_default="$bindir_default"
2517         SLIBPREF=""
2518         SLIBSUF=".dll"
2519         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2520         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2521         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2522         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2523         SLIB_INSTALL_LINKS=
2524         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2525         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2526         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'
2527         objformat="win32"
2528         dlltool="${cross_prefix}dlltool"
2529         enable dos_paths
2530         check_cflags -fno-common
2531         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2532                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2533                 die "ERROR: MinGW runtime version must be >= 3.15."
2534         add_cppflags -U__STRICT_ANSI__
2535         ;;
2536     cygwin*)
2537         target_os=cygwin
2538         shlibdir_default="$bindir_default"
2539         SLIBPREF="cyg"
2540         SLIBSUF=".dll"
2541         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2542         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2543         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2544         objformat="win32"
2545         enable dos_paths
2546         check_cflags -fno-common
2547         add_cppflags -U__STRICT_ANSI__
2548         ;;
2549     *-dos|freedos|opendos)
2550         network_extralibs="-lsocket"
2551         objformat="coff"
2552         enable dos_paths
2553         add_cppflags -U__STRICT_ANSI__
2554         ;;
2555     linux)
2556         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2557         enable dv1394
2558         ;;
2559     irix*)
2560         target_os=irix
2561         ranlib="echo ignoring ranlib"
2562         ;;
2563     os/2*)
2564         ln_s="cp -f"
2565         objformat="aout"
2566         add_cppflags -D_GNU_SOURCE
2567         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2568         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2569         AVSERVERLDFLAGS=""
2570         LIBSUF="_s.a"
2571         SLIBPREF=""
2572         SLIBSUF=".dll"
2573         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2574         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2575         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2576           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2577           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2578           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2579           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2580           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2581         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2582           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2583         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2584         enable dos_paths
2585         ;;
2586     gnu/kfreebsd)
2587         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2588         ;;
2589     gnu)
2590         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2591         ;;
2592     qnx)
2593         add_cppflags -D_QNX_SOURCE
2594         network_extralibs="-lsocket"
2595         ;;
2596     symbian)
2597         SLIBSUF=".dll"
2598         enable dos_paths
2599         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2600         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2601         add_ldflags -Wl,--target1-abs,--no-undefined \
2602                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2603                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2604         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2605                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2606                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2607         ;;
2608     none)
2609         ;;
2610     *)
2611         die "Unknown OS '$target_os'."
2612         ;;
2613 esac
2614
2615 esc(){
2616     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2617 }
2618
2619 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
2620
2621 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2622
2623 set_default $PATHS_LIST
2624
2625 # we need to build at least one lib type
2626 if ! enabled_any static shared; then
2627     cat <<EOF
2628 At least one library type must be built.
2629 Specify --enable-static to build the static libraries or --enable-shared to
2630 build the shared libraries as well. To only build the shared libraries specify
2631 --disable-static in addition to --enable-shared.
2632 EOF
2633     exit 1;
2634 fi
2635
2636 die_license_disabled() {
2637     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2638 }
2639
2640 die_license_disabled gpl libcdio
2641 die_license_disabled gpl libx264
2642 die_license_disabled gpl libxavs
2643 die_license_disabled gpl libxvid
2644 die_license_disabled gpl x11grab
2645
2646 die_license_disabled nonfree libfaac
2647 die_license_disabled nonfree openssl
2648
2649 die_license_disabled version3 libopencore_amrnb
2650 die_license_disabled version3 libopencore_amrwb
2651 die_license_disabled version3 libvo_aacenc
2652 die_license_disabled version3 libvo_amrwbenc
2653
2654 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2655
2656 disabled optimizations || check_cflags -fomit-frame-pointer
2657
2658 enable_pic() {
2659     enable pic
2660     add_cppflags -DPIC
2661     add_cflags   -fPIC
2662     add_asflags  -fPIC
2663 }
2664
2665 enabled pic && enable_pic
2666
2667 check_cc <<EOF || die "Symbol mangling check failed."
2668 int ff_extern;
2669 EOF
2670 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2671 extern_prefix=${sym%%ff_extern*}
2672
2673 check_cc <<EOF && enable inline_asm
2674 void foo(void) { __asm__ volatile ("" ::); }
2675 EOF
2676
2677 _restrict=
2678 for restrict_keyword in restrict __restrict__ __restrict; do
2679     check_cc <<EOF && _restrict=$restrict_keyword && break
2680 void foo(char * $restrict_keyword p);
2681 EOF
2682 done
2683
2684 check_cc <<EOF && enable attribute_packed
2685 struct { int x; } __attribute__((packed)) x;
2686 EOF
2687
2688 check_cc <<EOF && enable attribute_may_alias
2689 union { int x; } __attribute__((may_alias)) x;
2690 EOF
2691
2692 check_cc <<EOF || die "endian test failed"
2693 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2694 EOF
2695 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2696
2697 if enabled alpha; then
2698
2699     check_cflags -mieee
2700
2701 elif enabled arm; then
2702
2703     enabled thumb && check_cflags -mthumb || check_cflags -marm
2704     nogas=die
2705
2706     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2707         enable vfp_args
2708     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2709         case "${cross_prefix:-$cc}" in
2710             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2711             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2712 __asm__ (".eabi_attribute 28, 1");
2713 int main(void) { return 0; }
2714 EOF
2715         esac
2716         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2717     fi
2718
2719     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2720     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2721     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2722     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2723     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2724     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2725
2726     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2727
2728     enabled_all armv6t2 shared !pic && enable_pic
2729
2730 elif enabled mips; then
2731
2732     check_asm loongson '"dmult.g $1, $2, $3"'
2733     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2734
2735 elif enabled ppc; then
2736
2737     enable local_aligned_8 local_aligned_16
2738
2739     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2740     check_asm ibm_asm   '"add 0, 0, 0"'
2741     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2742     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2743
2744     # AltiVec flags: The FSF version of GCC differs from the Apple version
2745     if enabled altivec; then
2746         nogas=warn
2747         check_cflags -maltivec -mabi=altivec &&
2748         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2749         check_cflags -faltivec
2750
2751         # check if our compiler supports Motorola AltiVec C API
2752         check_cc <<EOF || disable altivec
2753 $inc_altivec_h
2754 int main(void) {
2755     vector signed int v1, v2, v3;
2756     v1 = vec_add(v2,v3);
2757     return 0;
2758 }
2759 EOF
2760
2761         # check if our compiler supports braces for vector declarations
2762         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2763 $inc_altivec_h
2764 int main (void) { (vector int) {1}; return 0; }
2765 EOF
2766     fi
2767
2768 elif enabled sparc; then
2769
2770     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2771         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2772
2773 elif enabled x86; then
2774
2775     enable local_aligned_8 local_aligned_16
2776
2777     # check whether EBP is available on x86
2778     # As 'i' is stored on the stack, this program will crash
2779     # if the base pointer is used to access it because the
2780     # base pointer is cleared in the inline assembly code.
2781     check_exec_crash <<EOF && enable ebp_available
2782     volatile int i=0;
2783     __asm__ volatile (
2784         "xorl %%ebp, %%ebp"
2785     ::: "%ebp");
2786     return i;
2787 EOF
2788
2789     # check whether EBX is available on x86
2790     check_asm ebx_available '""::"b"(0)' &&
2791         check_asm ebx_available '"":::"%ebx"'
2792
2793     # check whether xmm clobbers are supported
2794     check_asm xmm_clobbers '"":::"%xmm0"'
2795
2796     # check whether binutils is new enough to compile SSSE3/MMX2
2797     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2798     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2799
2800     if ! disabled_any asm mmx yasm; then
2801         if check_cmd $yasmexe --version; then
2802             enabled x86_64 && yasm_extra="-m amd64"
2803             yasm_debug="-g dwarf2"
2804         elif check_cmd nasm -v; then
2805             yasmexe=nasm
2806             yasm_debug="-g -F dwarf"
2807             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2808         fi
2809
2810         YASMFLAGS="-f $objformat $yasm_extra"
2811         enabled pic               && append YASMFLAGS "-DPIC"
2812         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2813         case "$objformat" in
2814             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2815         esac
2816
2817         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2818             die "yasm not found, use --disable-yasm for a crippled build"
2819         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2820     fi
2821
2822     case "$cpu" in
2823         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2824             disable fast_clz
2825         ;;
2826     esac
2827
2828 fi
2829
2830 if enabled asm; then
2831     as=${gas:=$as}
2832     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2833         $nogas "GNU assembler not found, install gas-preprocessor"
2834 fi
2835
2836 check_ldflags -Wl,--as-needed
2837
2838 if check_func dlopen; then
2839     ldl=
2840 elif check_func dlopen -ldl; then
2841     ldl=-ldl
2842 fi
2843
2844 if enabled network; then
2845     check_type "sys/types.h sys/socket.h" socklen_t
2846     check_type netdb.h "struct addrinfo"
2847     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2848     check_type netinet/in.h "struct sockaddr_in6"
2849     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2850     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2851     # Prefer arpa/inet.h over winsock2
2852     if check_header arpa/inet.h ; then
2853         check_func closesocket
2854     elif check_header winsock2.h ; then
2855         check_func_headers winsock2.h closesocket -lws2 && \
2856             network_extralibs="-lws2" || \
2857         { check_func_headers winsock2.h closesocket -lws2_32 && \
2858             network_extralibs="-lws2_32"; }
2859         check_type ws2tcpip.h socklen_t
2860         check_type ws2tcpip.h "struct addrinfo"
2861         check_type ws2tcpip.h "struct ipv6_mreq"
2862         check_type ws2tcpip.h "struct sockaddr_in6"
2863         check_type ws2tcpip.h "struct sockaddr_storage"
2864         check_struct winsock2.h "struct sockaddr" sa_len
2865     else
2866         disable network
2867     fi
2868 fi
2869
2870 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2871 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2872
2873 check_func  fcntl
2874 check_func  fork
2875 check_func  getaddrinfo $network_extralibs
2876 check_func  gethrtime
2877 check_func  getrusage
2878 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2879 check_func  inet_aton $network_extralibs
2880 check_func  isatty
2881 check_func  localtime_r
2882 check_func  ${malloc_prefix}memalign            && enable memalign
2883 check_func  mkstemp
2884 check_func  mmap
2885 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2886 check_func  setrlimit
2887 check_func  strerror_r
2888 check_func  strptime
2889 check_func  strtok_r
2890 check_func  sched_getaffinity
2891 check_func  sysconf
2892 check_func  sysctl
2893 check_func_headers io.h setmode
2894 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2895 check_func_headers windows.h GetProcessAffinityMask
2896 check_func_headers windows.h GetProcessTimes
2897 check_func_headers windows.h MapViewOfFile
2898 check_func_headers windows.h VirtualAlloc
2899
2900 check_header dlfcn.h
2901 check_header dxva2api.h
2902 check_header malloc.h
2903 check_header poll.h
2904 check_header sys/mman.h
2905 check_header sys/param.h
2906 check_header sys/resource.h
2907 check_header sys/select.h
2908 check_header vdpau/vdpau.h
2909 check_header vdpau/vdpau_x11.h
2910 check_header X11/extensions/XvMClib.h
2911
2912 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2913 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2914
2915 if ! disabled w32threads && ! enabled pthreads; then
2916     check_func _beginthreadex && enable w32threads
2917 fi
2918
2919 # check for some common methods of building with pthread support
2920 # do this before the optional library checks as some of them require pthreads
2921 if ! disabled pthreads && ! enabled w32threads; then
2922     enable pthreads
2923     if check_func pthread_create; then
2924         :
2925     elif check_func pthread_create -pthread; then
2926         add_cflags -pthread
2927         add_extralibs -pthread
2928     elif check_func pthread_create -pthreads; then
2929         add_cflags -pthreads
2930         add_extralibs -pthreads
2931     elif check_func pthread_create -lpthreadGC2; then
2932         add_extralibs -lpthreadGC2
2933     elif ! check_lib pthread.h pthread_create -lpthread; then
2934         disable pthreads
2935     fi
2936 fi
2937
2938 for thread in $THREADS_LIST; do
2939     if enabled $thread; then
2940         test -n "$thread_type" &&
2941             die "ERROR: Only one thread type must be selected." ||
2942             thread_type="$thread"
2943     fi
2944 done
2945
2946 check_lib math.h sin -lm && LIBM="-lm"
2947 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2948
2949 check_mathfunc exp2
2950 check_mathfunc exp2f
2951 check_mathfunc llrint
2952 check_mathfunc llrintf
2953 check_mathfunc log2
2954 check_mathfunc log2f
2955 check_mathfunc lrint
2956 check_mathfunc lrintf
2957 check_mathfunc round
2958 check_mathfunc roundf
2959 check_mathfunc trunc
2960 check_mathfunc truncf
2961
2962 # these are off by default, so fail if requested and not available
2963 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2964 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2965 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2966 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2967 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2968 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2969 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2970 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2971 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2972 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2973 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2974 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2975 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2976 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2977 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2978 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2979 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2980 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2981 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2982 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2983 enabled libvpx     && {
2984     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2985                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2986     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2987                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2988 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2989                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2990                         die "ERROR: libx264 version must be >= 0.118."; }
2991 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2992 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2993 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2994                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2995                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2996                         die "ERROR: openssl not found"; }
2997
2998 # libdc1394 check
2999 if enabled libdc1394; then
3000     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3001         enable libdc1394_2; } ||
3002     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3003         enable libdc1394_1; } ||
3004     die "ERROR: No version of libdc1394 found "
3005 fi
3006
3007 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3008     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3009     enable sdl &&
3010     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3011 fi
3012
3013 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3014
3015 check_header linux/fb.h
3016 check_header linux/videodev2.h
3017 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3018
3019 check_header sys/videoio.h
3020
3021 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3022 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3023 # w32api 3.12 had it defined wrong
3024 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3025
3026 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3027 { check_header dev/bktr/ioctl_meteor.h &&
3028   check_header dev/bktr/ioctl_bt848.h; } ||
3029 { check_header machine/ioctl_meteor.h &&
3030   check_header machine/ioctl_bt848.h; } ||
3031 { check_header dev/video/meteor/ioctl_meteor.h &&
3032   check_header dev/video/bktr/ioctl_bt848.h; } ||
3033 check_header dev/ic/bt8xx.h
3034
3035 check_header sndio.h
3036 check_header sys/soundcard.h
3037 check_header soundcard.h
3038
3039 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3040
3041 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3042
3043 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3044
3045 enabled libcdio &&
3046     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3047
3048 enabled x11grab                                           &&
3049 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3050 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3051 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3052
3053 # check for VDA header
3054 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3055     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3056 fi
3057
3058 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3059 check_cpp_condition \
3060     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3061     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3062       disable vdpau; }
3063 fi
3064
3065 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3066
3067 # add some useful compiler flags if supported
3068 check_cflags -Wdeclaration-after-statement
3069 check_cflags -Wall
3070 check_cflags -Wno-parentheses
3071 check_cflags -Wno-switch
3072 check_cflags -Wno-format-zero-length
3073 check_cflags -Wdisabled-optimization
3074 check_cflags -Wpointer-arith
3075 check_cflags -Wredundant-decls
3076 check_cflags -Wno-pointer-sign
3077 check_cflags -Wcast-qual
3078 check_cflags -Wwrite-strings
3079 check_cflags -Wtype-limits
3080 check_cflags -Wundef
3081 check_cflags -Wmissing-prototypes
3082 check_cflags -Wstrict-prototypes
3083 enabled extra_warnings && check_cflags -Winline
3084
3085 # add some linker flags
3086 check_ldflags -Wl,--warn-common
3087 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3088 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3089
3090 enabled xmm_clobber_test &&                             \
3091     check_ldflags -Wl,--wrap,avcodec_open2              \
3092                   -Wl,--wrap,avcodec_decode_audio4      \
3093                   -Wl,--wrap,avcodec_decode_video2      \
3094                   -Wl,--wrap,avcodec_decode_subtitle2   \
3095                   -Wl,--wrap,avcodec_encode_audio2      \
3096                   -Wl,--wrap,avcodec_encode_video       \
3097                   -Wl,--wrap,avcodec_encode_subtitle    \
3098                   -Wl,--wrap,sws_scale ||               \
3099     disable xmm_clobber_test
3100
3101 echo "X{};" > $TMPV
3102 if test_ldflags -Wl,--version-script,$TMPV; then
3103     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3104     check_cc <<EOF && enable symver_asm_label
3105 void ff_foo(void) __asm__ ("av_foo@VERSION");
3106 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3107 EOF
3108     check_cc <<EOF && enable symver_gnu_asm
3109 __asm__(".symver ff_foo,av_foo@VERSION");
3110 void ff_foo(void) {}
3111 EOF
3112 fi
3113
3114 if [ -n "$optflags" ]; then
3115     add_cflags $optflags
3116 elif enabled small; then
3117     add_cflags $size_cflags
3118 elif enabled optimizations; then
3119     add_cflags $speed_cflags
3120 else
3121     add_cflags $noopt_cflags
3122 fi
3123 check_cflags -fno-math-errno
3124 check_cflags -fno-signed-zeros
3125
3126 if enabled icc; then
3127     # Just warnings, no remarks
3128     check_cflags -w1
3129     # -wd: Disable following warnings
3130     # 144, 167, 556: -Wno-pointer-sign
3131     # 1292: attribute "foo" ignored
3132     # 10006: ignoring unknown option -fno-signed-zeros
3133     # 10148: ignoring unknown option -Wno-parentheses
3134     # 10156: ignoring option '-W'; no argument required
3135     check_cflags -wd144,167,556,1292,10006,10148,10156
3136     # 11030: Warning unknown option --as-needed
3137     # 10156: ignoring option '-export'; no argument required
3138     check_ldflags -wd10156,11030
3139     # Allow to compile with optimizations
3140     check_ldflags -march=$cpu
3141     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3142     enable ebp_available
3143     if enabled x86_32; then
3144         test ${icc_version%%.*} -ge 11 && \
3145             check_cflags -falign-stack=maintain-16-byte || \
3146             disable aligned_stack
3147     fi
3148 elif enabled ccc; then
3149     # disable some annoying warnings
3150     add_cflags -msg_disable cvtu32to64
3151     add_cflags -msg_disable embedcomment
3152     add_cflags -msg_disable needconstext
3153     add_cflags -msg_disable nomainieee
3154     add_cflags -msg_disable ptrmismatch1
3155     add_cflags -msg_disable unreachcode
3156 elif enabled gcc; then
3157     check_cflags -fno-tree-vectorize
3158     check_cflags -Werror=implicit-function-declaration
3159     check_cflags -Werror=missing-prototypes
3160     check_cflags -Werror=declaration-after-statement
3161 elif enabled llvm_gcc; then
3162     check_cflags -mllvm -stack-alignment=16
3163 elif enabled clang; then
3164     check_cflags -mllvm -stack-alignment=16
3165     check_cflags -Qunused-arguments
3166 elif enabled armcc; then
3167     # 2523: use of inline assembler is deprecated
3168     add_cflags -W${armcc_opt},--diag_suppress=2523
3169     add_cflags -W${armcc_opt},--diag_suppress=1207
3170     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3171     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3172     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3173     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3174 elif enabled tms470; then
3175     add_cflags -pds=824 -pds=837
3176 elif enabled pathscale; then
3177     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3178 fi
3179
3180 enabled_any $THREADS_LIST      && enable threads
3181
3182 check_deps $CONFIG_LIST       \
3183            $CONFIG_EXTRA      \
3184            $HAVE_LIST         \
3185            $ALL_COMPONENTS    \
3186            $ALL_TESTS         \
3187
3188 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3189
3190 ! enabled_any memalign posix_memalign malloc_aligned &&
3191     enabled_any $need_memalign && enable memalign_hack
3192
3193 echo "install prefix            $prefix"
3194 echo "source path               $source_path"
3195 echo "C compiler                $cc"
3196 echo "ARCH                      $arch ($cpu)"
3197 if test "$build_suffix" != ""; then
3198     echo "build suffix              $build_suffix"
3199 fi
3200 if test "$extra_version" != ""; then
3201     echo "version string suffix     $extra_version"
3202 fi
3203 echo "big-endian                ${bigendian-no}"
3204 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3205 if enabled x86; then
3206     echo "${yasmexe}                      ${yasm-no}"
3207     echo "MMX enabled               ${mmx-no}"
3208     echo "MMX2 enabled              ${mmx2-no}"
3209     echo "3DNow! enabled            ${amd3dnow-no}"
3210     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3211     echo "SSE enabled               ${sse-no}"
3212     echo "SSSE3 enabled             ${ssse3-no}"
3213     echo "AVX enabled               ${avx-no}"
3214     echo "CMOV enabled              ${cmov-no}"
3215     echo "CMOV is fast              ${fast_cmov-no}"
3216     echo "EBX available             ${ebx_available-no}"
3217     echo "EBP available             ${ebp_available-no}"
3218 fi
3219 if enabled arm; then
3220     echo "ARMv5TE enabled           ${armv5te-no}"
3221     echo "ARMv6 enabled             ${armv6-no}"
3222     echo "ARMv6T2 enabled           ${armv6t2-no}"
3223     echo "ARM VFP enabled           ${armvfp-no}"
3224     echo "NEON enabled              ${neon-no}"
3225 fi
3226 if enabled mips; then
3227     echo "MMI enabled               ${mmi-no}"
3228 fi
3229 if enabled ppc; then
3230     echo "AltiVec enabled           ${altivec-no}"
3231     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3232     echo "dcbzl available           ${dcbzl-no}"
3233 fi
3234 if enabled sparc; then
3235     echo "VIS enabled               ${vis-no}"
3236 fi
3237 echo "debug symbols             ${debug-no}"
3238 echo "optimize for size         ${small-no}"
3239 echo "optimizations             ${optimizations-no}"
3240 echo "static                    ${static-no}"
3241 echo "shared                    ${shared-no}"
3242 echo "new filter support        ${avfilter-no}"
3243 echo "network support           ${network-no}"
3244 echo "threading support         ${thread_type-no}"
3245 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3246 echo "SDL support               ${sdl-no}"
3247 echo "libdxva2 enabled          ${dxva2-no}"
3248 echo "libva enabled             ${vaapi-no}"
3249 echo "libvdpau enabled          ${vdpau-no}"
3250 echo "AVISynth enabled          ${avisynth-no}"
3251 echo "frei0r enabled            ${frei0r-no}"
3252 echo "gnutls enabled            ${gnutls-no}"
3253 echo "libcdio support           ${libcdio-no}"
3254 echo "libdc1394 support         ${libdc1394-no}"
3255 echo "libfaac enabled           ${libfaac-no}"
3256 echo "libgsm enabled            ${libgsm-no}"
3257 echo "libmp3lame enabled        ${libmp3lame-no}"
3258 echo "libnut enabled            ${libnut-no}"
3259 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3260 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3261 echo "libopencv support         ${libopencv-no}"
3262 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3263 echo "libpulse enabled          ${libpulse-no}"
3264 echo "librtmp enabled           ${librtmp-no}"
3265 echo "libschroedinger enabled   ${libschroedinger-no}"
3266 echo "libspeex enabled          ${libspeex-no}"
3267 echo "libtheora enabled         ${libtheora-no}"
3268 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3269 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3270 echo "libvorbis enabled         ${libvorbis-no}"
3271 echo "libvpx enabled            ${libvpx-no}"
3272 echo "libx264 enabled           ${libx264-no}"
3273 echo "libxavs enabled           ${libxavs-no}"
3274 echo "libxvid enabled           ${libxvid-no}"
3275 echo "openssl enabled           ${openssl-no}"
3276 echo "zlib enabled              ${zlib-no}"
3277 echo "bzlib enabled             ${bzlib-no}"
3278 echo
3279
3280 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3281     echo "Enabled ${type}s:"
3282     eval list=\$$(toupper $type)_LIST
3283     print_enabled '_*' $list | sort | pr -r -3 -t
3284     echo
3285 done
3286
3287 license="LGPL version 2.1 or later"
3288 if enabled nonfree; then
3289     license="nonfree and unredistributable"
3290 elif enabled gplv3; then
3291     license="GPL version 3 or later"
3292 elif enabled lgplv3; then
3293     license="LGPL version 3 or later"
3294 elif enabled gpl; then
3295     license="GPL version 2 or later"
3296 fi
3297
3298 echo "License: $license"
3299
3300 echo "Creating config.mak and config.h..."
3301
3302 test -e Makefile || $ln_s "$source_path/Makefile" .
3303
3304 config_files="$TMPH config.mak"
3305
3306 cat > config.mak <<EOF
3307 # Automatically generated by configure - do not modify!
3308 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3309 prefix=$prefix
3310 LIBDIR=\$(DESTDIR)$libdir
3311 SHLIBDIR=\$(DESTDIR)$shlibdir
3312 INCDIR=\$(DESTDIR)$incdir
3313 BINDIR=\$(DESTDIR)$bindir
3314 DATADIR=\$(DESTDIR)$datadir
3315 MANDIR=\$(DESTDIR)$mandir
3316 SRC_PATH=$source_path
3317 CC_IDENT=$cc_ident
3318 ARCH=$arch
3319 CC=$cc
3320 AS=$as
3321 LD=$ld
3322 DEPCC=$dep_cc
3323 YASM=$yasmexe
3324 YASMDEP=$yasmexe
3325 AR=$ar
3326 RANLIB=$ranlib
3327 LN_S=$ln_s
3328 CPPFLAGS=$CPPFLAGS
3329 CFLAGS=$CFLAGS
3330 ASFLAGS=$ASFLAGS
3331 AS_O=$CC_O
3332 CC_O=$CC_O
3333 DLLTOOL=$dlltool
3334 LDFLAGS=$LDFLAGS
3335 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3336 SHFLAGS=$SHFLAGS
3337 YASMFLAGS=$YASMFLAGS
3338 BUILDSUF=$build_suffix
3339 FULLNAME=$FULLNAME
3340 LIBPREF=$LIBPREF
3341 LIBSUF=$LIBSUF
3342 LIBNAME=$LIBNAME
3343 SLIBPREF=$SLIBPREF
3344 SLIBSUF=$SLIBSUF
3345 EXESUF=$EXESUF
3346 EXTRA_VERSION=$extra_version
3347 DEPFLAGS=$DEPFLAGS
3348 CCDEP=$CCDEP
3349 ASDEP=$ASDEP
3350 CC_DEPFLAGS=$CC_DEPFLAGS
3351 AS_DEPFLAGS=$AS_DEPFLAGS
3352 HOSTCC=$host_cc
3353 HOSTCFLAGS=$host_cflags
3354 HOSTEXESUF=$HOSTEXESUF
3355 HOSTLDFLAGS=$host_ldflags
3356 HOSTLIBS=$host_libs
3357 TARGET_EXEC=$target_exec
3358 TARGET_PATH=$target_path
3359 SDL_LIBS=$sdl_libs
3360 SDL_CFLAGS=$sdl_cflags
3361 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3362 EXTRALIBS=$extralibs
3363 INSTALL=install
3364 LIBTARGET=${LIBTARGET}
3365 SLIBNAME=${SLIBNAME}
3366 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3367 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3368 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3369 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3370 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3371 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3372 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3373 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3374 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3375 EOF
3376
3377 get_version(){
3378     name=$1
3379     file=$source_path/$2
3380     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3381     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3382     lcname=$(tolower $name)
3383     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3384     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3385 }
3386
3387 get_version LIBAVCODEC  libavcodec/version.h
3388 get_version LIBAVDEVICE libavdevice/avdevice.h
3389 get_version LIBAVFILTER libavfilter/version.h
3390 get_version LIBAVFORMAT libavformat/version.h
3391 get_version LIBAVRESAMPLE libavresample/version.h
3392 get_version LIBAVUTIL   libavutil/avutil.h
3393 get_version LIBSWSCALE  libswscale/swscale.h
3394
3395 cat > $TMPH <<EOF
3396 /* Automatically generated by configure - do not modify! */
3397 #ifndef LIBAV_CONFIG_H
3398 #define LIBAV_CONFIG_H
3399 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3400 #define LIBAV_LICENSE "$(c_escape $license)"
3401 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3402 #define CC_TYPE "$cc_type"
3403 #define CC_VERSION $cc_version
3404 #define restrict $_restrict
3405 #define EXTERN_PREFIX "${extern_prefix}"
3406 #define EXTERN_ASM ${extern_prefix}
3407 #define SLIBSUF "$SLIBSUF"
3408 EOF
3409
3410 test -n "$malloc_prefix" &&
3411     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3412
3413 if enabled small || disabled optimizations; then
3414     echo "#undef  av_always_inline"  >> $TMPH
3415     if enabled small; then
3416         echo "#define av_always_inline inline"  >> $TMPH
3417     else
3418         echo "#define av_always_inline av_unused"  >> $TMPH
3419     fi
3420 fi
3421
3422 if enabled yasm; then
3423     append config_files $TMPASM
3424     printf '' >$TMPASM
3425 fi
3426
3427 print_config ARCH_   "$config_files" $ARCH_LIST
3428 print_config HAVE_   "$config_files" $HAVE_LIST
3429 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3430                                      $CONFIG_EXTRA      \
3431                                      $ALL_COMPONENTS    \
3432
3433 cat >>config.mak <<EOF
3434 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3435 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3436 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3437 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3438 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3439 EOF
3440
3441 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3442
3443 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3444 cp_if_changed $TMPH config.h
3445 touch .config
3446
3447 enabled yasm && cp_if_changed $TMPASM config.asm
3448
3449 cat > $TMPH <<EOF
3450 /* Generated by ffconf */
3451 #ifndef AVUTIL_AVCONFIG_H
3452 #define AVUTIL_AVCONFIG_H
3453 EOF
3454
3455 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3456
3457 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3458
3459 cp_if_changed $TMPH libavutil/avconfig.h
3460
3461 test -n "$WARNINGS" && printf "\n$WARNINGS"
3462
3463 # build pkg-config files
3464
3465 pkgconfig_generate(){
3466 name=$1
3467 shortname=${name#lib}${build_suffix}
3468 comment=$2
3469 version=$3
3470 libs=$4
3471 requires=$5
3472 enabled ${name#lib} || return 0
3473 mkdir -p $name
3474 cat <<EOF > $name/$name.pc
3475 prefix=$prefix
3476 exec_prefix=\${prefix}
3477 libdir=$libdir
3478 includedir=$incdir
3479
3480 Name: $name
3481 Description: $comment
3482 Version: $version
3483 Requires: $(enabled shared || echo $requires)
3484 Requires.private: $(enabled shared && echo $requires)
3485 Conflicts:
3486 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3487 Libs.private: $(enabled shared && echo $libs)
3488 Cflags: -I\${includedir}
3489 EOF
3490 cat <<EOF > $name/$name-uninstalled.pc
3491 prefix=
3492 exec_prefix=
3493 libdir=\${pcfiledir}
3494 includedir=${source_path}
3495
3496 Name: $name
3497 Description: $comment
3498 Version: $version
3499 Requires: $requires
3500 Conflicts:
3501 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3502 Cflags: -I\${includedir}
3503 EOF
3504 }
3505
3506 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3507 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3508 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3509 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3510 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3511 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
3512 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"