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

   1 #!/bin/sh
   2 #
   3 # Libav configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken Libav."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-avconv         disable avconv build
  85   --disable-avplay         disable avplay build
  86   --disable-avprobe        disable avprobe build
  87   --disable-avserver       disable avserver build
  88   --disable-avdevice       disable libavdevice build
  89   --disable-avcodec        disable libavcodec build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --enable-postproc        enable libpostproc build (deprecated) [no]
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --disable-w32threads     disable Win32 threads [auto]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --enable-vaapi           enable VAAPI code
 111   --enable-vda             enable VDA code
 112   --enable-vdpau           enable VDPAU code
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --disable-safe-bitstream-reader
 117                            disable buffer boundary checking in bitreaders
 118                            (faster, but may crash)
 119   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 120   --disable-everything     disable all components listed below
 121   --disable-encoder=NAME   disable encoder NAME
 122   --enable-encoder=NAME    enable encoder NAME
 123   --disable-encoders       disable all encoders
 124   --disable-decoder=NAME   disable decoder NAME
 125   --enable-decoder=NAME    enable decoder NAME
 126   --disable-decoders       disable all decoders
 127   --disable-hwaccel=NAME   disable hwaccel NAME
 128   --enable-hwaccel=NAME    enable hwaccel NAME
 129   --disable-hwaccels       disable all hwaccels
 130   --disable-muxer=NAME     disable muxer NAME
 131   --enable-muxer=NAME      enable muxer NAME
 132   --disable-muxers         disable all muxers
 133   --disable-demuxer=NAME   disable demuxer NAME
 134   --enable-demuxer=NAME    enable demuxer NAME
 135   --disable-demuxers       disable all demuxers
 136   --enable-parser=NAME     enable parser NAME
 137   --disable-parser=NAME    disable parser NAME
 138   --disable-parsers        disable all parsers
 139   --enable-bsf=NAME        enable bitstream filter NAME
 140   --disable-bsf=NAME       disable bitstream filter NAME
 141   --disable-bsfs           disable all bitstream filters
 142   --enable-protocol=NAME   enable protocol NAME
 143   --disable-protocol=NAME  disable protocol NAME
 144   --disable-protocols      disable all protocols
 145   --disable-indev=NAME     disable input device NAME
 146   --disable-outdev=NAME    disable output device NAME
 147   --disable-indevs         disable input devices
 148   --disable-outdevs        disable output devices
 149   --disable-devices        disable all devices
 150   --enable-filter=NAME     enable filter NAME
 151   --disable-filter=NAME    disable filter NAME
 152   --disable-filters        disable all filters
 153   --list-decoders          show all available decoders
 154   --list-encoders          show all available encoders
 155   --list-hwaccels          show all available hardware accelerators
 156   --list-muxers            show all available muxers
 157   --list-demuxers          show all available demuxers
 158   --list-parsers           show all available parsers
 159   --list-protocols         show all available protocols
 160   --list-bsfs              show all available bitstream filters
 161   --list-indevs            show all available input devices
 162   --list-outdevs           show all available output devices
 163   --list-filters           show all available filters
 164
 165 External library support:
 166   --enable-avisynth        enable reading of AVISynth script files [no]
 167   --enable-bzlib           enable bzlib [autodetect]
 168   --enable-frei0r          enable frei0r video filtering
 169   --enable-gnutls          enable gnutls [no]
 170   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 171   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 172   --enable-libopencv       enable video filtering via libopencv [no]
 173   --enable-libcdio         enable audio CD grabbing with libcdio
 174   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 175                            and libraw1394 [no]
 176   --enable-libdirac        enable Dirac support via libdirac [no]
 177   --enable-libfaac         enable FAAC support via libfaac [no]
 178   --enable-libfreetype     enable libfreetype [no]
 179   --enable-libgsm          enable GSM support via libgsm [no]
 180   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 181   --enable-libnut          enable NUT (de)muxing via libnut,
 182                            native (de)muxer exists [no]
 183   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 184   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 185   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 186   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 187   --enable-libspeex        enable Speex support via libspeex [no]
 188   --enable-libtheora       enable Theora encoding via libtheora [no]
 189   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 190   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 191   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 192                            native implementation exists [no]
 193   --enable-libvpx          enable VP8 support via libvpx [no]
 194   --enable-libx264         enable H.264 encoding via x264 [no]
 195   --enable-libxavs         enable AVS encoding via xavs [no]
 196   --enable-libxvid         enable Xvid encoding via xvidcore,
 197                            native MPEG-4/Xvid encoder exists [no]
 198   --enable-mlib            enable Sun medialib [no]
 199   --enable-openssl         enable openssl [no]
 200   --enable-zlib            enable zlib [autodetect]
 201
 202 Advanced options (experts only):
 203   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 204   --enable-cross-compile   assume a cross-compiler is used
 205   --sysroot=PATH           root of cross-build tree
 206   --sysinclude=PATH        location of cross-build system headers
 207   --target-os=OS           compiler targets OS [$target_os]
 208   --target-exec=CMD        command to run executables on target
 209   --target-path=DIR        path to view of build directory on target
 210   --nm=NM                  use nm tool
 211   --ar=AR                  use archive tool AR [$ar_default]
 212   --as=AS                  use assembler AS [$as_default]
 213   --cc=CC                  use C compiler CC [$cc_default]
 214   --ld=LD                  use linker LD
 215   --host-cc=HOSTCC         use host C compiler HOSTCC
 216   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 217   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 218   --host-libs=HLIBS        use libs HLIBS when linking for host
 219   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 220   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 221   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 222   --extra-version=STRING   version string suffix []
 223   --build-suffix=SUFFIX    library name suffix []
 224   --arch=ARCH              select architecture [$arch]
 225   --cpu=CPU                select the minimum required CPU (affects
 226                            instruction selection, may crash on older CPUs)
 227   --disable-asm            disable all assembler optimizations
 228   --disable-altivec        disable AltiVec optimizations
 229   --disable-amd3dnow       disable 3DNow! optimizations
 230   --disable-amd3dnowext    disable 3DNow! extended optimizations
 231   --disable-mmx            disable MMX optimizations
 232   --disable-mmx2           disable MMX2 optimizations
 233   --disable-sse            disable SSE optimizations
 234   --disable-ssse3          disable SSSE3 optimizations
 235   --disable-avx            disable AVX optimizations
 236   --disable-armv5te        disable armv5te optimizations
 237   --disable-armv6          disable armv6 optimizations
 238   --disable-armv6t2        disable armv6t2 optimizations
 239   --disable-armvfp         disable ARM VFP optimizations
 240   --disable-iwmmxt         disable iwmmxt optimizations
 241   --disable-mmi            disable MMI optimizations
 242   --disable-neon           disable NEON optimizations
 243   --disable-vis            disable VIS optimizations
 244   --disable-yasm           disable use of yasm assembler
 245   --enable-pic             build position-independent code
 246   --malloc-prefix=PFX      prefix malloc and related names with PFX
 247   --enable-sram            allow use of on-chip SRAM
 248   --disable-symver         disable symbol versioning
 249   --optflags               override optimization-related compiler flags
 250
 251 Developer options (useful when working on Libav itself):
 252   --disable-debug          disable debugging symbols
 253   --enable-debug=LEVEL     set the debug level [$debuglevel]
 254   --disable-optimizations  disable compiler optimizations
 255   --enable-extra-warnings  enable more compiler warnings
 256   --samples=PATH           location of test samples for FATE, if not set use
 257                            \$FATE_SAMPLES at make invocation time.
 258
 259 NOTE: Object files are built at the place where configure is launched.
 260 EOF
 261   exit 0
 262 }
 263
 264 quotes='""'
 265
 266 log(){
 267     echo "$@" >> $logfile
 268 }
 269
 270 log_file(){
 271     log BEGIN $1
 272     pr -n -t $1 >> $logfile
 273     log END $1
 274 }
 275
 276 echolog(){
 277     log "$@"
 278     echo "$@"
 279 }
 280
 281 warn(){
 282     log "WARNING: $*"
 283     WARNINGS="${WARNINGS}WARNING: $*\n"
 284 }
 285
 286 die(){
 287     echolog "$@"
 288     cat <<EOF
 289
 290 If you think configure made a mistake, make sure you are using the latest
 291 version from Git.  If the latest version fails, report the problem to the
 292 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 293 EOF
 294     if disabled logging; then
 295         cat <<EOF
 296 Rerun configure with logging enabled (do not use --disable-logging), and
 297 include the log this produces with your report.
 298 EOF
 299     else
 300 cat <<EOF
 301 Include the log file "$logfile" produced by configure as this will help
 302 solving the problem.
 303 EOF
 304     fi
 305     exit 1
 306 }
 307
 308 # Avoid locale weirdness, besides we really just want to translate ASCII.
 309 toupper(){
 310     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 311 }
 312
 313 tolower(){
 314     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 315 }
 316
 317 c_escape(){
 318     echo "$*" | sed 's/["\\]/\\\0/g'
 319 }
 320
 321 sh_quote(){
 322     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 323     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 324     echo "$v"
 325 }
 326
 327 cleanws(){
 328     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 329 }
 330
 331 filter(){
 332     pat=$1
 333     shift
 334     for v; do
 335         eval "case $v in $pat) echo $v ;; esac"
 336     done
 337 }
 338
 339 filter_out(){
 340     pat=$1
 341     shift
 342     for v; do
 343         eval "case $v in $pat) ;; *) echo $v ;; esac"
 344     done
 345 }
 346
 347 map(){
 348     m=$1
 349     shift
 350     for v; do eval $m; done
 351 }
 352
 353 set_all(){
 354     value=$1
 355     shift
 356     for var in $*; do
 357         eval $var=$value
 358     done
 359 }
 360
 361 set_weak(){
 362     value=$1
 363     shift
 364     for var; do
 365         eval : \${$var:=$value}
 366     done
 367 }
 368
 369 set_safe(){
 370     var=$1
 371     shift
 372     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 373 }
 374
 375 get_safe(){
 376     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 377 }
 378
 379 pushvar(){
 380     for var in $*; do
 381         eval level=\${${var}_level:=0}
 382         eval ${var}_${level}="\$$var"
 383         eval ${var}_level=$(($level+1))
 384     done
 385 }
 386
 387 popvar(){
 388     for var in $*; do
 389         eval level=\${${var}_level:-0}
 390         test $level = 0 && continue
 391         eval level=$(($level-1))
 392         eval $var="\${${var}_${level}}"
 393         eval ${var}_level=$level
 394         eval unset ${var}_${level}
 395     done
 396 }
 397
 398 enable(){
 399     set_all yes $*
 400 }
 401
 402 disable(){
 403     set_all no $*
 404 }
 405
 406 enable_weak(){
 407     set_weak yes $*
 408 }
 409
 410 disable_weak(){
 411     set_weak no $*
 412 }
 413
 414 enable_safe(){
 415     for var; do
 416         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 417     done
 418 }
 419
 420 disable_safe(){
 421     for var; do
 422         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 423     done
 424 }
 425
 426 do_enable_deep(){
 427     for var; do
 428         enabled $var && continue
 429         eval sel="\$${var}_select"
 430         eval sgs="\$${var}_suggest"
 431         pushvar var sgs
 432         enable_deep $sel
 433         popvar sgs
 434         enable_deep_weak $sgs
 435         popvar var
 436     done
 437 }
 438
 439 enable_deep(){
 440     do_enable_deep $*
 441     enable $*
 442 }
 443
 444 enable_deep_weak(){
 445     do_enable_deep $*
 446     enable_weak $*
 447 }
 448
 449 enabled(){
 450     test "${1#!}" = "$1" && op== || op=!=
 451     eval test "x\$${1#!}" $op "xyes"
 452 }
 453
 454 disabled(){
 455     test "${1#!}" = "$1" && op== || op=!=
 456     eval test "x\$${1#!}" $op "xno"
 457 }
 458
 459 enabled_all(){
 460     for opt; do
 461         enabled $opt || return 1
 462     done
 463 }
 464
 465 disabled_all(){
 466     for opt; do
 467         disabled $opt || return 1
 468     done
 469 }
 470
 471 enabled_any(){
 472     for opt; do
 473         enabled $opt && return 0
 474     done
 475 }
 476
 477 disabled_any(){
 478     for opt; do
 479         disabled $opt && return 0
 480     done
 481     return 1
 482 }
 483
 484 set_default(){
 485     for opt; do
 486         eval : \${$opt:=\$${opt}_default}
 487     done
 488 }
 489
 490 is_in(){
 491     value=$1
 492     shift
 493     for var in $*; do
 494         [ $var = $value ] && return 0
 495     done
 496     return 1
 497 }
 498
 499 check_deps(){
 500     for cfg; do
 501         cfg="${cfg#!}"
 502         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 503         disabled ${cfg}_checking && continue
 504         enable ${cfg}_checking
 505
 506         eval dep_all="\$${cfg}_deps"
 507         eval dep_any="\$${cfg}_deps_any"
 508         eval dep_sel="\$${cfg}_select"
 509         eval dep_sgs="\$${cfg}_suggest"
 510         eval dep_ifa="\$${cfg}_if"
 511         eval dep_ifn="\$${cfg}_if_any"
 512
 513         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 514         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 515         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 516
 517         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 518         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 519         enabled_all  $dep_all || disable $cfg
 520         enabled_any  $dep_any || disable $cfg
 521         disabled_any $dep_sel && disable $cfg
 522
 523         if enabled $cfg; then
 524             eval dep_extralibs="\$${cfg}_extralibs"
 525             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 526             enable_deep $dep_sel
 527             enable_deep_weak $dep_sgs
 528         fi
 529
 530         disable ${cfg}_checking
 531     done
 532 }
 533
 534 print_config_h(){
 535     enabled $1 && v=1 || v=0
 536     echo "#define $2 $v"
 537 }
 538
 539 print_config_mak(){
 540     enabled $1 && v= || v=!
 541     echo "$v$2=yes"
 542 }
 543
 544 print_config_asm(){
 545     enabled $1 && echo "%define $2"
 546 }
 547
 548 print_config(){
 549     pfx=$1
 550     files=$2
 551     shift 2
 552     for cfg; do
 553         ucname="$(toupper $cfg)"
 554         for f in $files; do
 555             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 556         done
 557     done
 558 }
 559
 560 print_enabled(){
 561     test "$1" = -n && end=" " && shift || end="\n"
 562     suf=$1
 563     shift
 564     for v; do
 565         enabled $v && printf "%s$end" ${v%$suf};
 566     done
 567 }
 568
 569 append(){
 570     var=$1
 571     shift
 572     eval "$var=\"\$$var $*\""
 573 }
 574
 575 prepend(){
 576     var=$1
 577     shift
 578     eval "$var=\"$* \$$var\""
 579 }
 580
 581 add_cppflags(){
 582     append CPPFLAGS $($filter_cppflags "$@")
 583 }
 584
 585 add_cflags(){
 586     append CFLAGS $($filter_cflags "$@")
 587 }
 588
 589 add_asflags(){
 590     append ASFLAGS $($filter_asflags "$@")
 591 }
 592
 593 add_ldflags(){
 594     append LDFLAGS "$@"
 595 }
 596
 597 add_extralibs(){
 598     prepend extralibs "$@"
 599 }
 600
 601 check_cmd(){
 602     log "$@"
 603     "$@" >> $logfile 2>&1
 604 }
 605
 606 check_cc(){
 607     log check_cc "$@"
 608     cat > $TMPC
 609     log_file $TMPC
 610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 611 }
 612
 613 check_cpp(){
 614     log check_cpp "$@"
 615     cat > $TMPC
 616     log_file $TMPC
 617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 618 }
 619
 620 check_as(){
 621     log check_as "$@"
 622     cat > $TMPC
 623     log_file $TMPC
 624     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 625 }
 626
 627 check_asm(){
 628     log check_asm "$@"
 629     name="$1"
 630     code="$2"
 631     shift 2
 632     disable $name
 633     check_as "$@" <<EOF && enable $name
 634 void foo(void){ __asm__ volatile($code); }
 635 EOF
 636 }
 637
 638 check_yasm(){
 639     log check_yasm "$@"
 640     echo "$1" > $TMPS
 641     log_file $TMPS
 642     shift 1
 643     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 644 }
 645
 646 check_ld(){
 647     log check_ld "$@"
 648     flags=''
 649     libs=''
 650     for f; do
 651         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 652     done
 653     check_cc $($filter_cflags $flags) || return
 654     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 655 }
 656
 657 check_cppflags(){
 658     log check_cppflags "$@"
 659     set -- $($filter_cppflags "$@")
 660     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 661 int x;
 662 EOF
 663 }
 664
 665 check_cflags(){
 666     log check_cflags "$@"
 667     set -- $($filter_cflags "$@")
 668     check_cc "$@" <<EOF && append CFLAGS "$@"
 669 int x;
 670 EOF
 671 }
 672
 673 test_ldflags(){
 674     log test_ldflags "$@"
 675     check_ld "$@" <<EOF
 676 int main(void){ return 0; }
 677 EOF
 678 }
 679
 680 check_ldflags(){
 681     log check_ldflags "$@"
 682     test_ldflags "$@" && add_ldflags "$@"
 683 }
 684
 685 check_header(){
 686     log check_header "$@"
 687     header=$1
 688     shift
 689     disable_safe $header
 690     check_cpp "$@" <<EOF && enable_safe $header
 691 #include <$header>
 692 int x;
 693 EOF
 694 }
 695
 696 check_func(){
 697     log check_func "$@"
 698     func=$1
 699     shift
 700     disable $func
 701     check_ld "$@" <<EOF && enable $func
 702 extern int $func();
 703 int main(void){ $func(); }
 704 EOF
 705 }
 706
 707 check_mathfunc(){
 708     log check_mathfunc "$@"
 709     func=$1
 710     shift
 711     disable $func
 712     check_ld "$@" <<EOF && enable $func
 713 #include <math.h>
 714 float foo(float f) { return $func(f); }
 715 int main(void){ return 0; }
 716 EOF
 717 }
 718
 719 check_func_headers(){
 720     log check_func_headers "$@"
 721     headers=$1
 722     funcs=$2
 723     shift 2
 724     {
 725         for hdr in $headers; do
 726             echo "#include <$hdr>"
 727         done
 728         for func in $funcs; do
 729             echo "long check_$func(void) { return (long) $func; }"
 730         done
 731         echo "int main(void) { return 0; }"
 732     } | check_ld "$@" && enable $funcs && enable_safe $headers
 733 }
 734
 735 check_cpp_condition(){
 736     log check_cpp_condition "$@"
 737     header=$1
 738     condition=$2
 739     shift 2
 740     check_cpp $($filter_cppflags "$@") <<EOF
 741 #include <$header>
 742 #if !($condition)
 743 #error "unsatisfied condition: $condition"
 744 #endif
 745 EOF
 746 }
 747
 748 check_lib(){
 749     log check_lib "$@"
 750     header="$1"
 751     func="$2"
 752     shift 2
 753     check_header $header && check_func $func "$@" && add_extralibs "$@"
 754 }
 755
 756 check_lib2(){
 757     log check_lib2 "$@"
 758     headers="$1"
 759     funcs="$2"
 760     shift 2
 761     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 762 }
 763
 764 check_pkg_config(){
 765     log check_pkg_config "$@"
 766     pkg="$1"
 767     headers="$2"
 768     funcs="$3"
 769     shift 3
 770     $pkg_config --exists $pkg || return
 771     pkg_cflags=$($pkg_config --cflags $pkg)
 772     pkg_libs=$($pkg_config --libs $pkg)
 773     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 774         set_safe ${pkg}_cflags $pkg_cflags   &&
 775         set_safe ${pkg}_libs   $pkg_libs
 776 }
 777
 778 check_exec(){
 779     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 780 }
 781
 782 check_exec_crash(){
 783     code=$(cat)
 784
 785     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 786     # are safe but may not be available everywhere.  Thus we use
 787     # raise(SIGTERM) instead.  The check is run in a subshell so we
 788     # can redirect the "Terminated" message from the shell.  SIGBUS
 789     # is not defined by standard C so it is used conditionally.
 790
 791     (check_exec "$@") >> $logfile 2>&1 <<EOF
 792 #include <signal.h>
 793 static void sighandler(int sig){
 794     raise(SIGTERM);
 795 }
 796 int main(void){
 797     signal(SIGILL, sighandler);
 798     signal(SIGFPE, sighandler);
 799     signal(SIGSEGV, sighandler);
 800 #ifdef SIGBUS
 801     signal(SIGBUS, sighandler);
 802 #endif
 803     { $code }
 804 }
 805 EOF
 806 }
 807
 808 check_type(){
 809     log check_type "$@"
 810     headers=$1
 811     type=$2
 812     shift 2
 813     disable_safe "$type"
 814     incs=""
 815     for hdr in $headers; do
 816         incs="$incs
 817 #include <$hdr>"
 818     done
 819     check_cc "$@" <<EOF && enable_safe "$type"
 820 $incs
 821 $type v;
 822 EOF
 823 }
 824
 825 check_struct(){
 826     log check_type "$@"
 827     headers=$1
 828     struct=$2
 829     member=$3
 830     shift 3
 831     disable_safe "${struct}_${member}"
 832     incs=""
 833     for hdr in $headers; do
 834         incs="$incs
 835 #include <$hdr>"
 836     done
 837     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 838 $incs
 839 const void *p = &(($struct *)0)->$member;
 840 EOF
 841 }
 842
 843 require(){
 844     name="$1"
 845     header="$2"
 846     func="$3"
 847     shift 3
 848     check_lib $header $func "$@" || die "ERROR: $name not found"
 849 }
 850
 851 require2(){
 852     name="$1"
 853     headers="$2"
 854     func="$3"
 855     shift 3
 856     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 857 }
 858
 859 require_pkg_config(){
 860     pkg="$1"
 861     check_pkg_config "$@" || die "ERROR: $pkg not found"
 862     add_cflags    $(get_safe ${pkg}_cflags)
 863     add_extralibs $(get_safe ${pkg}_libs)
 864 }
 865
 866 check_host_cc(){
 867     log check_host_cc "$@"
 868     cat > $TMPC
 869     log_file $TMPC
 870     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 871 }
 872
 873 check_host_cflags(){
 874     log check_host_cflags "$@"
 875     check_host_cc "$@" <<EOF && append host_cflags "$@"
 876 int x;
 877 EOF
 878 }
 879
 880 apply(){
 881     file=$1
 882     shift
 883     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 884 }
 885
 886 cp_if_changed(){
 887     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 888     mkdir -p "$(dirname $2)"
 889     cp -f "$1" "$2"
 890 }
 891
 892 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 893 # system-dependent things.
 894
 895 COMPONENT_LIST="
 896     bsfs
 897     decoders
 898     demuxers
 899     encoders
 900     filters
 901     hwaccels
 902     indevs
 903     muxers
 904     outdevs
 905     parsers
 906     protocols
 907 "
 908
 909 PROGRAM_LIST="
 910     avconv
 911     avplay
 912     avprobe
 913     avserver
 914     ffmpeg
 915 "
 916
 917 CONFIG_LIST="
 918     $COMPONENT_LIST
 919     $PROGRAM_LIST
 920     aandct
 921     ac3dsp
 922     avcodec
 923     avdevice
 924     avfilter
 925     avformat
 926     avisynth
 927     bzlib
 928     dct
 929     doc
 930     dwt
 931     dxva2
 932     fastdiv
 933     fft
 934     frei0r
 935     gnutls
 936     golomb
 937     gpl
 938     gray
 939     h264chroma
 940     h264dsp
 941     h264pred
 942     hardcoded_tables
 943     huffman
 944     libcdio
 945     libdc1394
 946     libdirac
 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     lpc
 969     lsp
 970     mdct
 971     memalign_hack
 972     mlib
 973     mpegaudiodsp
 974     network
 975     nonfree
 976     openssl
 977     pic
 978     postproc
 979     rdft
 980     rtpdec
 981     runtime_cpudetect
 982     safe_bitstream_reader
 983     shared
 984     sinewin
 985     small
 986     sram
 987     static
 988     swscale
 989     swscale_alpha
 990     thumb
 991     vaapi
 992     vda
 993     vdpau
 994     version3
 995     x11grab
 996     zlib
 997 "
 998
 999 THREADS_LIST='
1000     pthreads
1001     w32threads
1002 '
1003
1004 ARCH_LIST='
1005     alpha
1006     arm
1007     avr32
1008     avr32_ap
1009     avr32_uc
1010     bfin
1011     ia64
1012     m68k
1013     mips
1014     mips64
1015     parisc
1016     ppc
1017     ppc64
1018     s390
1019     sh4
1020     sparc
1021     sparc64
1022     tomi
1023     x86
1024     x86_32
1025     x86_64
1026 '
1027
1028 ARCH_EXT_LIST='
1029     altivec
1030     amd3dnow
1031     amd3dnowext
1032     armv5te
1033     armv6
1034     armv6t2
1035     armvfp
1036     avx
1037     iwmmxt
1038     mmi
1039     mmx
1040     mmx2
1041     neon
1042     ppc4xx
1043     sse
1044     ssse3
1045     vfpv3
1046     vis
1047 '
1048
1049 HAVE_LIST_PUB='
1050     bigendian
1051     fast_unaligned
1052 '
1053
1054 HAVE_LIST="
1055     $ARCH_EXT_LIST
1056     $HAVE_LIST_PUB
1057     $THREADS_LIST
1058     aligned_stack
1059     alsa_asoundlib_h
1060     altivec_h
1061     arpa_inet_h
1062     asm_mod_y
1063     attribute_may_alias
1064     attribute_packed
1065     closesocket
1066     cmov
1067     dcbzl
1068     dev_bktr_ioctl_bt848_h
1069     dev_bktr_ioctl_meteor_h
1070     dev_ic_bt8xx_h
1071     dev_video_bktr_ioctl_bt848_h
1072     dev_video_meteor_ioctl_meteor_h
1073     dlfcn_h
1074     dlopen
1075     dos_paths
1076     ebp_available
1077     ebx_available
1078     exp2
1079     exp2f
1080     fast_64bit
1081     fast_clz
1082     fast_cmov
1083     fcntl
1084     fork
1085     getaddrinfo
1086     gethrtime
1087     GetProcessAffinityMask
1088     GetProcessMemoryInfo
1089     GetProcessTimes
1090     getrusage
1091     gnu_as
1092     ibm_asm
1093     inet_aton
1094     inline_asm
1095     isatty
1096     ldbrx
1097     libdc1394_1
1098     libdc1394_2
1099     llrint
1100     llrintf
1101     local_aligned_16
1102     local_aligned_8
1103     localtime_r
1104     log2
1105     log2f
1106     loongson
1107     lrint
1108     lrintf
1109     lzo1x_999_compress
1110     machine_ioctl_bt848_h
1111     machine_ioctl_meteor_h
1112     malloc_h
1113     MapViewOfFile
1114     memalign
1115     mkstemp
1116     mmap
1117     poll_h
1118     posix_memalign
1119     round
1120     roundf
1121     sched_getaffinity
1122     sdl
1123     sdl_video_size
1124     setmode
1125     setrlimit
1126     sndio_h
1127     socklen_t
1128     soundcard_h
1129     strerror_r
1130     strptime
1131     strtok_r
1132     struct_addrinfo
1133     struct_ipv6_mreq
1134     struct_rusage_ru_maxrss
1135     struct_sockaddr_in6
1136     struct_sockaddr_sa_len
1137     struct_sockaddr_storage
1138     struct_v4l2_frmivalenum_discrete
1139     symver
1140     symver_asm_label
1141     symver_gnu_asm
1142     sysconf
1143     sysctl
1144     sys_mman_h
1145     sys_param_h
1146     sys_resource_h
1147     sys_select_h
1148     sys_soundcard_h
1149     sys_videoio_h
1150     threads
1151     trunc
1152     truncf
1153     vfp_args
1154     VirtualAlloc
1155     winsock2_h
1156     xform_asm
1157     xmm_clobbers
1158     yasm
1159 "
1160
1161 # options emitted with CONFIG_ prefix but not available on command line
1162 CONFIG_EXTRA="
1163     avutil
1164     gplv3
1165     lgplv3
1166 "
1167
1168 CMDLINE_SELECT="
1169     $ARCH_EXT_LIST
1170     $CONFIG_LIST
1171     $THREADS_LIST
1172     asm
1173     cross_compile
1174     debug
1175     extra_warnings
1176     logging
1177     optimizations
1178     symver
1179     yasm
1180 "
1181
1182 PATHS_LIST='
1183     bindir
1184     datadir
1185     incdir
1186     libdir
1187     mandir
1188     prefix
1189     shlibdir
1190 '
1191
1192 CMDLINE_SET="
1193     $PATHS_LIST
1194     ar
1195     arch
1196     as
1197     build_suffix
1198     cc
1199     cpu
1200     cross_prefix
1201     dep_cc
1202     extra_version
1203     host_cc
1204     host_cflags
1205     host_ldflags
1206     host_libs
1207     host_os
1208     ld
1209     logfile
1210     malloc_prefix
1211     nm
1212     optflags
1213     pkg_config
1214     samples
1215     sysinclude
1216     sysroot
1217     target_exec
1218     target_os
1219     target_path
1220 "
1221
1222 CMDLINE_APPEND="
1223     extra_cflags
1224 "
1225
1226 # code dependency declarations
1227
1228 # architecture extensions
1229
1230 armv5te_deps="arm"
1231 armv6_deps="arm"
1232 armv6t2_deps="arm"
1233 armvfp_deps="arm"
1234 iwmmxt_deps="arm"
1235 neon_deps="arm"
1236 vfpv3_deps="armvfp"
1237
1238 mmi_deps="mips"
1239
1240 altivec_deps="ppc"
1241 ppc4xx_deps="ppc"
1242
1243 vis_deps="sparc"
1244
1245 x86_64_suggest="cmov fast_cmov"
1246 amd3dnow_deps="mmx"
1247 amd3dnowext_deps="amd3dnow"
1248 mmx_deps="x86"
1249 mmx2_deps="mmx"
1250 sse_deps="mmx"
1251 ssse3_deps="sse"
1252 avx_deps="ssse3"
1253
1254 aligned_stack_if_any="ppc x86"
1255 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1256 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1257 fast_unaligned_if_any="armv6 ppc x86"
1258
1259 inline_asm_deps="!tms470"
1260 need_memalign="altivec neon sse"
1261
1262 symver_if_any="symver_asm_label symver_gnu_asm"
1263
1264 # subsystems
1265 dct_select="rdft"
1266 mdct_select="fft"
1267 rdft_select="fft"
1268 mpegaudiodsp_select="dct"
1269
1270 # decoders / encoders / hardware accelerators
1271 aac_decoder_select="mdct sinewin"
1272 aac_encoder_select="mdct sinewin"
1273 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1274 ac3_decoder_select="mdct ac3dsp ac3_parser"
1275 ac3_encoder_select="mdct ac3dsp"
1276 ac3_fixed_encoder_select="mdct ac3dsp"
1277 alac_encoder_select="lpc"
1278 amrnb_decoder_select="lsp"
1279 amrwb_decoder_select="lsp"
1280 atrac1_decoder_select="mdct sinewin"
1281 atrac3_decoder_select="mdct"
1282 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1283 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1284 cavs_decoder_select="golomb"
1285 cook_decoder_select="mdct sinewin"
1286 cscd_decoder_suggest="zlib"
1287 dca_decoder_select="mdct"
1288 dnxhd_encoder_select="aandct"
1289 dxa_decoder_select="zlib"
1290 eac3_decoder_select="ac3_decoder"
1291 eac3_encoder_select="mdct ac3dsp"
1292 eamad_decoder_select="aandct"
1293 eatgq_decoder_select="aandct"
1294 eatqi_decoder_select="aandct"
1295 ffv1_decoder_select="golomb"
1296 flac_decoder_select="golomb"
1297 flac_encoder_select="golomb lpc"
1298 flashsv_decoder_select="zlib"
1299 flashsv_encoder_select="zlib"
1300 flashsv2_decoder_select="zlib"
1301 flv_decoder_select="h263_decoder"
1302 flv_encoder_select="h263_encoder"
1303 fraps_decoder_select="huffman"
1304 h261_encoder_select="aandct"
1305 h263_decoder_select="h263_parser"
1306 h263_encoder_select="aandct"
1307 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1308 h263i_decoder_select="h263_decoder"
1309 h263p_encoder_select="h263_encoder"
1310 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1311 h264_dxva2_hwaccel_deps="dxva2api_h"
1312 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1313 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1314 h264_vda_hwaccel_select="vda h264_decoder"
1315 h264_vdpau_decoder_select="vdpau h264_decoder"
1316 imc_decoder_select="fft mdct sinewin"
1317 jpegls_decoder_select="golomb"
1318 jpegls_encoder_select="golomb"
1319 ljpeg_encoder_select="aandct"
1320 loco_decoder_select="golomb"
1321 mjpeg_encoder_select="aandct"
1322 mlp_decoder_select="mlp_parser"
1323 mp1_decoder_select="mpegaudiodsp"
1324 mp1float_decoder_select="mpegaudiodsp"
1325 mp2_decoder_select="mpegaudiodsp"
1326 mp2float_decoder_select="mpegaudiodsp"
1327 mp3_decoder_select="mpegaudiodsp"
1328 mp3adu_decoder_select="mpegaudiodsp"
1329 mp3adufloat_decoder_select="mpegaudiodsp"
1330 mp3float_decoder_select="mpegaudiodsp"
1331 mp3on4_decoder_select="mpegaudiodsp"
1332 mp3on4float_decoder_select="mpegaudiodsp"
1333 mpc7_decoder_select="mpegaudiodsp"
1334 mpc8_decoder_select="mpegaudiodsp"
1335 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1336 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1337 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1338 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1339 mpeg1video_encoder_select="aandct"
1340 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1341 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1342 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1343 mpeg2video_encoder_select="aandct"
1344 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1345 mpeg4_encoder_select="h263_encoder"
1346 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1347 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1348 msmpeg4v1_decoder_select="h263_decoder"
1349 msmpeg4v1_encoder_select="h263_encoder"
1350 msmpeg4v2_decoder_select="h263_decoder"
1351 msmpeg4v2_encoder_select="h263_encoder"
1352 msmpeg4v3_decoder_select="h263_decoder"
1353 msmpeg4v3_encoder_select="h263_encoder"
1354 nellymoser_decoder_select="mdct sinewin"
1355 nellymoser_encoder_select="mdct sinewin"
1356 png_decoder_select="zlib"
1357 png_encoder_select="zlib"
1358 qcelp_decoder_select="lsp"
1359 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1360 ra_144_encoder_select="lpc"
1361 rv10_decoder_select="h263_decoder"
1362 rv10_encoder_select="h263_encoder"
1363 rv20_decoder_select="h263_decoder"
1364 rv20_encoder_select="h263_encoder"
1365 rv30_decoder_select="golomb h264chroma h264pred"
1366 rv40_decoder_select="golomb h264chroma h264pred"
1367 shorten_decoder_select="golomb"
1368 sipr_decoder_select="lsp"
1369 snow_decoder_select="dwt"
1370 snow_encoder_select="aandct dwt"
1371 svq1_encoder_select="aandct"
1372 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1373 svq3_decoder_suggest="zlib"
1374 theora_decoder_select="vp3_decoder"
1375 tiff_decoder_suggest="zlib"
1376 tiff_encoder_suggest="zlib"
1377 truehd_decoder_select="mlp_decoder"
1378 tscc_decoder_select="zlib"
1379 twinvq_decoder_select="mdct lsp sinewin"
1380 vc1_decoder_select="h263_decoder h264chroma"
1381 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1382 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1383 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1384 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1385 vc1image_decoder_select="vc1_decoder"
1386 vorbis_decoder_select="mdct"
1387 vorbis_encoder_select="mdct"
1388 vp6_decoder_select="huffman"
1389 vp6a_decoder_select="vp6_decoder"
1390 vp6f_decoder_select="vp6_decoder"
1391 vp8_decoder_select="h264pred"
1392 wmapro_decoder_select="mdct sinewin"
1393 wmav1_decoder_select="mdct sinewin"
1394 wmav1_encoder_select="mdct sinewin"
1395 wmav2_decoder_select="mdct sinewin"
1396 wmav2_encoder_select="mdct sinewin"
1397 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1398 wmv1_decoder_select="h263_decoder"
1399 wmv1_encoder_select="h263_encoder"
1400 wmv2_decoder_select="h263_decoder"
1401 wmv2_encoder_select="h263_encoder"
1402 wmv3_decoder_select="vc1_decoder"
1403 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1404 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1405 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1406 wmv3image_decoder_select="wmv3_decoder"
1407 zlib_decoder_select="zlib"
1408 zlib_encoder_select="zlib"
1409 zmbv_decoder_select="zlib"
1410 zmbv_encoder_select="zlib"
1411
1412 vaapi_deps="va_va_h"
1413 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1414 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1415
1416 # parsers
1417 h264_parser_select="golomb h264chroma h264dsp h264pred"
1418
1419 # external libraries
1420 libdirac_decoder_deps="libdirac !libschroedinger"
1421 libdirac_encoder_deps="libdirac"
1422 libfaac_encoder_deps="libfaac"
1423 libgsm_decoder_deps="libgsm"
1424 libgsm_encoder_deps="libgsm"
1425 libgsm_ms_decoder_deps="libgsm"
1426 libgsm_ms_encoder_deps="libgsm"
1427 libmp3lame_encoder_deps="libmp3lame"
1428 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1429 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1430 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1431 libopenjpeg_decoder_deps="libopenjpeg"
1432 libschroedinger_decoder_deps="libschroedinger"
1433 libschroedinger_encoder_deps="libschroedinger"
1434 libspeex_decoder_deps="libspeex"
1435 libspeex_encoder_deps="libspeex"
1436 libtheora_encoder_deps="libtheora"
1437 libvo_aacenc_encoder_deps="libvo_aacenc"
1438 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1439 libvorbis_encoder_deps="libvorbis"
1440 libvpx_decoder_deps="libvpx"
1441 libvpx_encoder_deps="libvpx"
1442 libx264_encoder_deps="libx264"
1443 libxavs_encoder_deps="libxavs"
1444 libxvid_encoder_deps="libxvid"
1445
1446 # demuxers / muxers
1447 ac3_demuxer_select="ac3_parser"
1448 asf_stream_muxer_select="asf_muxer"
1449 avisynth_demuxer_deps="avisynth"
1450 dirac_demuxer_select="dirac_parser"
1451 eac3_demuxer_select="ac3_parser"
1452 flac_demuxer_select="flac_parser"
1453 ipod_muxer_select="mov_muxer"
1454 libnut_demuxer_deps="libnut"
1455 libnut_muxer_deps="libnut"
1456 matroska_audio_muxer_select="matroska_muxer"
1457 matroska_demuxer_suggest="zlib bzlib"
1458 mov_demuxer_suggest="zlib"
1459 mp3_demuxer_select="mpegaudio_parser"
1460 mp4_muxer_select="mov_muxer"
1461 mpegtsraw_demuxer_select="mpegts_demuxer"
1462 mxf_d10_muxer_select="mxf_muxer"
1463 ogg_demuxer_select="golomb"
1464 psp_muxer_select="mov_muxer"
1465 rtp_demuxer_select="sdp_demuxer"
1466 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1467 rtsp_demuxer_select="http_protocol rtpdec"
1468 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1469 sap_demuxer_select="sdp_demuxer"
1470 sap_muxer_select="rtp_muxer rtp_protocol"
1471 sdp_demuxer_select="rtpdec"
1472 spdif_muxer_select="aac_parser"
1473 tg2_muxer_select="mov_muxer"
1474 tgp_muxer_select="mov_muxer"
1475 w64_demuxer_deps="wav_demuxer"
1476
1477 # indevs / outdevs
1478 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1479 alsa_outdev_deps="alsa_asoundlib_h"
1480 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1481 dv1394_indev_deps="dv1394 dv_demuxer"
1482 fbdev_indev_deps="linux_fb_h"
1483 jack_indev_deps="jack_jack_h"
1484 libcdio_indev_deps="libcdio"
1485 libdc1394_indev_deps="libdc1394"
1486 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1487 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1488 pulse_indev_deps="libpulse"
1489 sndio_indev_deps="sndio_h"
1490 sndio_outdev_deps="sndio_h"
1491 v4l_indev_deps="linux_videodev_h"
1492 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1493 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1494 vfwcap_indev_extralibs="-lavicap32"
1495 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1496 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1497
1498 # protocols
1499 gopher_protocol_deps="network"
1500 httpproxy_protocol_deps="network"
1501 httpproxy_protocol_select="tcp_protocol"
1502 http_protocol_deps="network"
1503 http_protocol_select="tcp_protocol"
1504 https_protocol_select="tls_protocol"
1505 mmsh_protocol_select="http_protocol"
1506 mmst_protocol_deps="network"
1507 rtmp_protocol_select="tcp_protocol"
1508 rtp_protocol_select="udp_protocol"
1509 tcp_protocol_deps="network"
1510 tls_protocol_deps_any="openssl gnutls"
1511 tls_protocol_select="tcp_protocol"
1512 udp_protocol_deps="network"
1513
1514 # filters
1515 blackframe_filter_deps="gpl"
1516 boxblur_filter_deps="gpl"
1517 cropdetect_filter_deps="gpl"
1518 delogo_filter_deps="gpl"
1519 drawtext_filter_deps="libfreetype"
1520 frei0r_filter_deps="frei0r dlopen strtok_r"
1521 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1522 hqdn3d_filter_deps="gpl"
1523 ocv_filter_deps="libopencv"
1524 scale_filter_deps="swscale"
1525 yadif_filter_deps="gpl"
1526
1527 # libraries
1528 avdevice_deps="avcodec avformat"
1529 avformat_deps="avcodec"
1530 postproc_deps="gpl"
1531
1532 # programs
1533 avconv_deps="avcodec avformat swscale"
1534 avplay_deps="avcodec avformat swscale sdl"
1535 avplay_select="rdft"
1536 avprobe_deps="avcodec avformat"
1537 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1538 avserver_extralibs='$ldl'
1539 ffmpeg_deps="avcodec avformat swscale"
1540
1541 doc_deps="texi2html"
1542
1543 # tests
1544
1545 test_deps(){
1546     suf1=$1
1547     suf2=$2
1548     shift 2
1549     for v; do
1550         dep=${v%=*}
1551         tests=${v#*=}
1552         for name in ${tests}; do
1553             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1554         done
1555     done
1556 }
1557
1558 mxf_d10_test_deps="avfilter"
1559 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1560
1561 test_deps _encoder _decoder                                             \
1562     adpcm_ima_qt                                                        \
1563     adpcm_ima_wav                                                       \
1564     adpcm_ms                                                            \
1565     adpcm_swf                                                           \
1566     adpcm_yamaha=adpcm_yam                                              \
1567     alac                                                                \
1568     asv1                                                                \
1569     asv2                                                                \
1570     bmp                                                                 \
1571     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1572     dvvideo="dv dv_411 dv50"                                            \
1573     ffv1                                                                \
1574     flac                                                                \
1575     flashsv                                                             \
1576     flv                                                                 \
1577     adpcm_g726=g726                                                     \
1578     gif                                                                 \
1579     h261                                                                \
1580     h263="h263 h263p"                                                   \
1581     huffyuv                                                             \
1582     jpegls                                                              \
1583     mjpeg="jpg mjpeg ljpeg"                                             \
1584     mp2                                                                 \
1585     mpeg1video="mpeg mpeg1b"                                            \
1586     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1587     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1588     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1589     mpeg4="mpeg4thread error rc"                                        \
1590     msmpeg4v3=msmpeg4                                                   \
1591     msmpeg4v2                                                           \
1592     pbm=pbmpipe                                                         \
1593     pcx                                                                 \
1594     pgm="pgm pgmpipe"                                                   \
1595     png                                                                 \
1596     ppm="ppm ppmpipe"                                                   \
1597     rawvideo="rgb yuv"                                                  \
1598     roq                                                                 \
1599     rv10                                                                \
1600     rv20                                                                \
1601     sgi                                                                 \
1602     snow="snow snowll"                                                  \
1603     svq1                                                                \
1604     targa=tga                                                           \
1605     tiff                                                                \
1606     wmav1                                                               \
1607     wmav2                                                               \
1608     wmv1                                                                \
1609     wmv2                                                                \
1610
1611 test_deps _muxer _demuxer                                               \
1612     aiff                                                                \
1613     pcm_alaw=alaw                                                       \
1614     asf                                                                 \
1615     au                                                                  \
1616     avi                                                                 \
1617     dv=dv_fmt                                                           \
1618     ffm                                                                 \
1619     flv=flv_fmt                                                         \
1620     gxf                                                                 \
1621     matroska=mkv                                                        \
1622     mmf                                                                 \
1623     mov                                                                 \
1624     pcm_mulaw=mulaw                                                     \
1625     mxf="mxf mxf_d10"                                                   \
1626     nut                                                                 \
1627     ogg                                                                 \
1628     rawvideo=pixfmt                                                     \
1629     rm                                                                  \
1630     swf                                                                 \
1631     mpegts=ts                                                           \
1632     voc                                                                 \
1633     wav                                                                 \
1634     yuv4mpegpipe=yuv4mpeg                                               \
1635
1636 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1637 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1638
1639 # default parameters
1640
1641 logfile="config.log"
1642
1643 # installation paths
1644 prefix_default="/usr/local"
1645 bindir_default='${prefix}/bin'
1646 datadir_default='${prefix}/share/avconv'
1647 incdir_default='${prefix}/include'
1648 libdir_default='${prefix}/lib'
1649 mandir_default='${prefix}/share/man'
1650 shlibdir_default="$libdir_default"
1651
1652 # toolchain
1653 ar_default="ar"
1654 cc_default="gcc"
1655 cc_version=\"unknown\"
1656 host_cc_default="gcc"
1657 ln_s="ln -sf"
1658 nm_default="nm"
1659 objformat="elf"
1660 pkg_config_default=pkg-config
1661 ranlib="ranlib"
1662 yasmexe="yasm"
1663
1664 nm_opts='-g'
1665 nogas=":"
1666
1667 # machine
1668 arch_default=$(uname -m)
1669 cpu="generic"
1670
1671 # OS
1672 target_os_default=$(tolower $(uname -s))
1673 host_os=$target_os_default
1674
1675 # configurable options
1676 enable $PROGRAM_LIST
1677
1678 enable avcodec
1679 enable avdevice
1680 enable avfilter
1681 enable avformat
1682 enable avutil
1683 enable swscale
1684
1685 enable asm
1686 enable debug
1687 enable doc
1688 enable fastdiv
1689 enable network
1690 enable optimizations
1691 enable safe_bitstream_reader
1692 enable static
1693 enable swscale_alpha
1694
1695 # build settings
1696 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1697 AVSERVERLDFLAGS=-Wl,-E
1698 LIBPREF="lib"
1699 LIBSUF=".a"
1700 FULLNAME='$(NAME)$(BUILDSUF)'
1701 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1702 SLIBPREF="lib"
1703 SLIBSUF=".so"
1704 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1705 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1706 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1707 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1708 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1709 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1710
1711 AS_O='-o $@'
1712 CC_O='-o $@'
1713
1714 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1715 host_libs='-lm'
1716
1717 target_path='$(CURDIR)'
1718
1719 # since the object filename is not given with the -MM flag, the compiler
1720 # is only able to print the basename, and we must add the path ourselves
1721 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1722 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1723
1724 # find source path
1725 if test -f configure; then
1726     source_path=.
1727 else
1728     source_path=$(cd $(dirname "$0"); pwd)
1729     echo "$source_path" | grep -q '[[:blank:]]' &&
1730         die "Out of tree builds are impossible with whitespace in source path."
1731     test -e "$source_path/config.h" &&
1732         die "Out of tree builds are impossible with config.h in source dir."
1733 fi
1734
1735 for v in "$@"; do
1736     r=${v#*=}
1737     l=${v%"$r"}
1738     r=$(sh_quote "$r")
1739     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1740 done
1741
1742 find_things(){
1743     thing=$1
1744     pattern=$2
1745     file=$source_path/$3
1746     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1747 }
1748
1749 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1750 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1751 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1752 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1753 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1754 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1755 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1756 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1757 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1758 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1759 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1760
1761 ALL_COMPONENTS="
1762     $BSF_LIST
1763     $DECODER_LIST
1764     $DEMUXER_LIST
1765     $ENCODER_LIST
1766     $FILTER_LIST
1767     $HWACCEL_LIST
1768     $INDEV_LIST
1769     $MUXER_LIST
1770     $OUTDEV_LIST
1771     $PARSER_LIST
1772     $PROTOCOL_LIST
1773 "
1774
1775 find_tests(){
1776     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1777 }
1778
1779 ACODEC_TESTS=$(find_tests acodec)
1780 VCODEC_TESTS=$(find_tests vsynth1)
1781 LAVF_TESTS=$(find_tests lavf)
1782 LAVFI_TESTS=$(find_tests lavfi)
1783 SEEK_TESTS=$(find_tests seek seek_)
1784
1785 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1786
1787 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1788
1789 for n in $COMPONENT_LIST; do
1790     v=$(toupper ${n%s})_LIST
1791     eval enable \$$v
1792     eval ${n}_if_any="\$$v"
1793 done
1794
1795 enable $ARCH_EXT_LIST $ALL_TESTS
1796
1797 die_unknown(){
1798     echo "Unknown option \"$1\"."
1799     echo "See $0 --help for available options."
1800     exit 1
1801 }
1802
1803 show_list() {
1804     suffix=_$1
1805     shift
1806     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1807     exit 0
1808 }
1809
1810 for opt do
1811     optval="${opt#*=}"
1812     case "$opt" in
1813     --extra-ldflags=*) add_ldflags $optval
1814     ;;
1815     --extra-libs=*) add_extralibs $optval
1816     ;;
1817     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1818     ;;
1819     --enable-debug=*) debuglevel="$optval"
1820     ;;
1821     --disable-everything)
1822     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1823     ;;
1824     --enable-*=*|--disable-*=*)
1825     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1826     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1827     eval list=\$$(toupper $thing)_LIST
1828     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1829     $action $(filter "$name" $list)
1830     ;;
1831     --enable-?*|--disable-?*)
1832     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1833     if is_in $option $COMPONENT_LIST; then
1834         test $action = disable && action=unset
1835         eval $action \$$(toupper ${option%s})_LIST
1836     elif is_in $option $CMDLINE_SELECT; then
1837         $action $option
1838     else
1839         die_unknown $opt
1840     fi
1841     ;;
1842     --list-*)
1843         NAME="${opt#--list-}"
1844         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1845         NAME=${NAME%s}
1846         eval show_list $NAME \$$(toupper $NAME)_LIST
1847     ;;
1848     --help|-h) show_help
1849     ;;
1850     *)
1851     optname="${opt%%=*}"
1852     optname="${optname#--}"
1853     optname=$(echo "$optname" | sed 's/-/_/g')
1854     if is_in $optname $CMDLINE_SET; then
1855         eval $optname='$optval'
1856     elif is_in $optname $CMDLINE_APPEND; then
1857         append $optname "$optval"
1858     else
1859          die_unknown $opt
1860     fi
1861     ;;
1862     esac
1863 done
1864
1865 disabled logging && logfile=/dev/null
1866
1867 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1868 set >> $logfile
1869
1870 test -n "$cross_prefix" && enable cross_compile
1871
1872 if enabled cross_compile; then
1873     test -n "$arch" && test -n "$target_os" ||
1874         die "Must specify target arch and OS when cross-compiling"
1875 fi
1876
1877 set_default arch target_os
1878
1879 ar_default="${cross_prefix}${ar_default}"
1880 cc_default="${cross_prefix}${cc_default}"
1881 nm_default="${cross_prefix}${nm_default}"
1882 pkg_config_default="${cross_prefix}${pkg_config_default}"
1883 ranlib="${cross_prefix}${ranlib}"
1884
1885 sysinclude_default="${sysroot}/usr/include"
1886
1887 set_default cc nm pkg_config sysinclude
1888 enabled cross_compile || host_cc_default=$cc
1889 set_default host_cc
1890
1891 if ! $pkg_config --version >/dev/null 2>&1; then
1892     warn "$pkg_config not found, library detection may fail."
1893     pkg_config=false
1894 fi
1895
1896 exesuf() {
1897     case $1 in
1898         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1899     esac
1900 }
1901
1902 EXESUF=$(exesuf $target_os)
1903 HOSTEXESUF=$(exesuf $host_os)
1904
1905 # set temporary file name
1906 : ${TMPDIR:=$TEMPDIR}
1907 : ${TMPDIR:=$TMP}
1908 : ${TMPDIR:=/tmp}
1909
1910 if ! check_cmd mktemp -u XXXXXX; then
1911     # simple replacement for missing mktemp
1912     # NOT SAFE FOR GENERAL USE
1913     mktemp(){
1914         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1915     }
1916 fi
1917
1918 tmpfile(){
1919     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1920         (set -C; exec > $tmp) 2>/dev/null ||
1921         die "Unable to create temporary file in $TMPDIR."
1922     append TMPFILES $tmp
1923     eval $1=$tmp
1924 }
1925
1926 trap 'rm -f -- $TMPFILES' EXIT
1927
1928 tmpfile TMPASM .asm
1929 tmpfile TMPC   .c
1930 tmpfile TMPE   $EXESUF
1931 tmpfile TMPH   .h
1932 tmpfile TMPO   .o
1933 tmpfile TMPS   .S
1934 tmpfile TMPSH  .sh
1935 tmpfile TMPV   .ver
1936
1937 unset -f mktemp
1938
1939 chmod +x $TMPE
1940
1941 # make sure we can execute files in $TMPDIR
1942 cat > $TMPSH 2>> $logfile <<EOF
1943 #! /bin/sh
1944 EOF
1945 chmod +x $TMPSH >> $logfile 2>&1
1946 if ! $TMPSH >> $logfile 2>&1; then
1947     cat <<EOF
1948 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1949 variable to another directory and make sure that it is not mounted noexec.
1950 EOF
1951     die "Sanity test failed."
1952 fi
1953
1954 filter_asflags=echo
1955 filter_cflags=echo
1956 filter_cppflags=echo
1957
1958 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1959     cc_type=llvm_gcc
1960     cc_version=__VERSION__
1961     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1962     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1963     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1964     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1965     speed_cflags='-O3'
1966     size_cflags='-Os'
1967 elif $cc -v 2>&1 | grep -qi ^gcc; then
1968     cc_type=gcc
1969     cc_version=__VERSION__
1970     gcc_version=$($cc --version | head -n1)
1971     gcc_basever=$($cc -dumpversion)
1972     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1973     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1974     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1975     if ! $cc -dumpversion | grep -q '^2\.'; then
1976         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1977         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1978     fi
1979     speed_cflags='-O3'
1980     size_cflags='-Os'
1981 elif $cc --version 2>/dev/null | grep -q Intel; then
1982     cc_type=icc
1983     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1984     cc_ident=$($cc --version | head -n1)
1985     icc_version=$($cc -dumpversion)
1986     CC_DEPFLAGS='-MMD'
1987     AS_DEPFLAGS='-MMD'
1988     speed_cflags='-O3'
1989     size_cflags='-Os'
1990     noopt_cflags='-O1'
1991 elif $cc -v 2>&1 | grep -q xlc; then
1992     cc_type=xlc
1993     cc_version="AV_STRINGIFY(__IBMC__)"
1994     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1995     speed_cflags='-O5'
1996     size_cflags='-O5 -qcompact'
1997 elif $cc -V 2>/dev/null | grep -q Compaq; then
1998     cc_type=ccc
1999     cc_version="AV_STRINGIFY(__DECC_VER)"
2000     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2001     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2002     debuglevel=3
2003     add_ldflags -Wl,-z,now # calls to libots crash without this
2004     speed_cflags='-fast'
2005     size_cflags='-O1'
2006 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2007     test -d "$sysroot" || die "No valid sysroot specified."
2008     cc_type=armcc
2009     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2010     cc_ident=$($cc --vsn | head -n1)
2011     armcc_conf="$PWD/armcc.conf"
2012     $cc --arm_linux_configure                 \
2013         --arm_linux_config_file="$armcc_conf" \
2014         --configure_sysroot="$sysroot"        \
2015         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2016         die "Error creating armcc configuration file."
2017     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2018     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2019     as_default="${cross_prefix}gcc"
2020     CC_DEPFLAGS='-MMD'
2021     AS_DEPFLAGS='-MMD'
2022     speed_cflags='-O3'
2023     size_cflags='-Os'
2024     filter_asflags="filter_out -W${armcc_opt}*"
2025 elif $cc -version 2>/dev/null | grep -q TMS470; then
2026     cc_type=tms470
2027     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2028     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2029     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2030     CC_O='-fr=$(@D)'
2031     as_default="${cross_prefix}gcc"
2032     ld_default="${cross_prefix}gcc"
2033     TMPO=$(basename $TMPC .c).o
2034     append TMPFILES $TMPO
2035     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2036     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2037     AS_DEPFLAGS='-MMD'
2038     speed_cflags='-O3 -mf=5'
2039     size_cflags='-O3 -mf=2'
2040     filter_cflags=tms470_flags
2041     tms470_flags(){
2042         for flag; do
2043             case $flag in
2044                 -march=*|-mcpu=*)
2045                     case "${flag#*=}" in
2046                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2047                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2048                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2049                         armv6*|arm11*)          echo -mv=6   ;;
2050                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2051                                                 echo -mv=5e  ;;
2052                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2053                     esac
2054                     ;;
2055                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2056                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2057                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2058                 -msoft-float)   echo --float_support=vfplib       ;;
2059                 -O[0-3]|-mf=*)  echo $flag                        ;;
2060                 -g)             echo -g -mn                       ;;
2061                 -pds=*)         echo $flag                        ;;
2062             esac
2063         done
2064     }
2065 elif $cc -v 2>&1 | grep -q clang; then
2066     cc_type=clang
2067     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2068         cc_version=__clang_version__ || cc_version=__VERSION__
2069     cc_ident=$($cc --version | head -n1)
2070     CC_DEPFLAGS='-MMD'
2071     AS_DEPFLAGS='-MMD'
2072     speed_cflags='-O3'
2073     size_cflags='-Os'
2074 elif $cc -V 2>&1 | grep -q Sun; then
2075     cc_type=suncc
2076     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2077     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2078     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2079     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2080     add_ldflags -xc99
2081     speed_cflags='-O5'
2082     size_cflags='-O5 -xspace'
2083     filter_cflags=suncc_flags
2084     suncc_flags(){
2085         for flag; do
2086             case $flag in
2087                 -march=*|-mcpu=*)
2088                     case "${flag#*=}" in
2089                         native)                   echo -xtarget=native       ;;
2090                         v9|niagara)               echo -xarch=sparc          ;;
2091                         ultrasparc)               echo -xarch=sparcvis       ;;
2092                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2093                         i586|pentium)             echo -xchip=pentium        ;;
2094                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2095                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2096                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2097                         pentium4*)          echo -xtarget=pentium4           ;;
2098                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2099                         *-sse3)             echo -xarch=sse3                 ;;
2100                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2101                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2102                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2103                         k8|opteron|athlon64|athlon-fx)
2104                                                   echo -xarch=sse2a          ;;
2105                         athlon*)                  echo -xarch=pentium_proa   ;;
2106                     esac
2107                     ;;
2108                 -std=c99)             echo -xc99              ;;
2109                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2110                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2111                 -W*,*)                echo $flag              ;;
2112                 -f*-*|-W*)                                    ;;
2113                 *)                    echo $flag              ;;
2114             esac
2115         done
2116     }
2117 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2118     cc_type=pathscale
2119     cc_version=__PATHSCALE__
2120     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2121     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2122     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2123     speed_cflags='-O2'
2124     size_cflags='-Os'
2125     filter_cflags='filter_out -Wdisabled-optimization'
2126 elif $cc -v 2>&1 | grep -q Open64; then
2127     cc_type=open64
2128     cc_version=__OPEN64__
2129     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2130     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2131     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2132     speed_cflags='-O2'
2133     size_cflags='-Os'
2134     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2135 fi
2136
2137 test -n "$cc_type" && enable $cc_type ||
2138     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2139
2140 : ${as_default:=$cc}
2141 : ${dep_cc_default:=$cc}
2142 : ${ld_default:=$cc}
2143 set_default ar as dep_cc ld
2144
2145 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2146 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2147
2148 add_cflags $extra_cflags
2149 add_asflags $extra_cflags
2150
2151 if test -n "$sysroot"; then
2152     case "$cc_type" in
2153         gcc|llvm_gcc|clang)
2154             add_cppflags --sysroot="$sysroot"
2155             add_ldflags --sysroot="$sysroot"
2156         ;;
2157         tms470)
2158             add_cppflags -I"$sysinclude"
2159             add_ldflags  --sysroot="$sysroot"
2160         ;;
2161     esac
2162 fi
2163
2164 if test "$cpu" = host; then
2165     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2166
2167     case "$cc_type" in
2168         gcc|llvm_gcc)
2169             check_native(){
2170                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2171                 sed -n "/cc1.*$1=/{
2172                             s/.*$1=\\([^ ]*\\).*/\\1/
2173                             p
2174                             q
2175                         }" $TMPE
2176             }
2177             cpu=$(check_native -march || check_native -mcpu)
2178         ;;
2179     esac
2180
2181     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2182 fi
2183
2184 # Deal with common $arch aliases
2185 case "$arch" in
2186     arm*)
2187         arch="arm"
2188     ;;
2189     mips|mipsel|IP*)
2190         arch="mips"
2191     ;;
2192     mips64*)
2193         arch="mips"
2194         subarch="mips64"
2195     ;;
2196     parisc|hppa)
2197         arch="parisc"
2198     ;;
2199     parisc64|hppa64)
2200         arch="parisc"
2201         subarch="parisc64"
2202     ;;
2203     "Power Macintosh"|ppc|powerpc)
2204         arch="ppc"
2205     ;;
2206     ppc64|powerpc64)
2207         arch="ppc"
2208         subarch="ppc64"
2209     ;;
2210     s390|s390x)
2211         arch="s390"
2212     ;;
2213     sh4|sh)
2214         arch="sh4"
2215     ;;
2216     sun4u|sparc64)
2217         arch="sparc"
2218         subarch="sparc64"
2219     ;;
2220     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2221         arch="x86"
2222     ;;
2223 esac
2224
2225 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2226 enable $arch
2227
2228 # Add processor-specific flags
2229 if test "$cpu" = generic; then
2230     : do nothing
2231 elif enabled ppc; then
2232
2233     case $(tolower $cpu) in
2234         601|ppc601|powerpc601)
2235             cpuflags="-mcpu=601"
2236             disable altivec
2237         ;;
2238         603*|ppc603*|powerpc603*)
2239             cpuflags="-mcpu=603"
2240             disable altivec
2241         ;;
2242         604*|ppc604*|powerpc604*)
2243             cpuflags="-mcpu=604"
2244             disable altivec
2245         ;;
2246         g3|75*|ppc75*|powerpc75*)
2247             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2248             disable altivec
2249         ;;
2250         g4|745*|ppc745*|powerpc745*)
2251             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2252         ;;
2253         74*|ppc74*|powerpc74*)
2254             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2255         ;;
2256         g5|970|ppc970|powerpc970|power4*)
2257             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2258         ;;
2259         cell)
2260             cpuflags="-mcpu=cell"
2261             enable ldbrx
2262         ;;
2263         e500v2)
2264             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2265             disable altivec
2266         ;;
2267         e500)
2268             cpuflags="-mcpu=8540 -mhard-float"
2269             disable altivec
2270         ;;
2271     esac
2272
2273 elif enabled x86; then
2274
2275     case $cpu in
2276         i[345]86|pentium)
2277             cpuflags="-march=$cpu"
2278             disable mmx
2279         ;;
2280         # targets that do NOT support conditional mov (cmov)
2281         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2282             cpuflags="-march=$cpu"
2283             disable cmov
2284         ;;
2285         # targets that do support conditional mov (cmov)
2286         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2287             cpuflags="-march=$cpu"
2288             enable cmov
2289             enable fast_cmov
2290         ;;
2291         # targets that do support conditional mov but on which it's slow
2292         pentium4|pentium4m|prescott|nocona)
2293             cpuflags="-march=$cpu"
2294             enable cmov
2295             disable fast_cmov
2296         ;;
2297     esac
2298
2299 elif enabled sparc; then
2300
2301     case $cpu in
2302         niagara)
2303             cpuflags="-mcpu=$cpu"
2304             disable vis
2305         ;;
2306         sparc64)
2307             cpuflags="-mcpu=v9"
2308         ;;
2309     esac
2310
2311 elif enabled arm; then
2312
2313     case $cpu in
2314         armv*)
2315             cpuflags="-march=$cpu"
2316             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2317         ;;
2318         *)
2319             cpuflags="-mcpu=$cpu"
2320             case $cpu in
2321                 cortex-a*)                               subarch=armv7a  ;;
2322                 cortex-r*)                               subarch=armv7r  ;;
2323                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2324                 arm11*)                                  subarch=armv6   ;;
2325                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2326                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2327             esac
2328         ;;
2329     esac
2330
2331 elif enabled alpha; then
2332
2333     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2334
2335 elif enabled bfin; then
2336
2337     cpuflags="-mcpu=$cpu"
2338
2339 elif enabled mips; then
2340
2341     cpuflags="-march=$cpu"
2342
2343 elif enabled avr32; then
2344
2345     case $cpu in
2346         ap7[02]0[0-2])
2347             subarch="avr32_ap"
2348             cpuflags="-mpart=$cpu"
2349         ;;
2350         ap)
2351             subarch="avr32_ap"
2352             cpuflags="-march=$cpu"
2353         ;;
2354         uc3[ab]*)
2355             subarch="avr32_uc"
2356             cpuflags="-mcpu=$cpu"
2357         ;;
2358         uc)
2359             subarch="avr32_uc"
2360             cpuflags="-march=$cpu"
2361         ;;
2362     esac
2363
2364 fi
2365
2366 add_cflags $cpuflags
2367 add_asflags $cpuflags
2368
2369 # compiler sanity check
2370 check_exec <<EOF
2371 int main(void){ return 0; }
2372 EOF
2373 if test "$?" != 0; then
2374     echo "$cc is unable to create an executable file."
2375     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2376         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2377         echo "Only do this if you know what cross compiling means."
2378     fi
2379     die "C compiler test failed."
2380 fi
2381
2382 add_cppflags -D_ISOC99_SOURCE
2383 check_cflags -std=c99
2384 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2385 #include <stdlib.h>
2386 EOF
2387 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2388 #include <stdlib.h>
2389 EOF
2390
2391 check_host_cflags -std=c99
2392 check_host_cflags -Wall
2393
2394 case "$arch" in
2395     alpha|ia64|mips|parisc|sparc)
2396         spic=$shared
2397     ;;
2398     x86)
2399         subarch="x86_32"
2400         check_cc <<EOF && subarch="x86_64"
2401         int test[(int)sizeof(char*) - 7];
2402 EOF
2403         if test "$subarch" = "x86_64"; then
2404             spic=$shared
2405         fi
2406     ;;
2407 esac
2408
2409 enable $subarch
2410 enabled spic && enable pic
2411
2412 # OS specific
2413 case $target_os in
2414     haiku)
2415         prefix_default="/boot/common"
2416         network_extralibs="-lnetwork"
2417         host_libs=
2418         ;;
2419     sunos)
2420         AVSERVERLDFLAGS=""
2421         SHFLAGS='-shared -Wl,-h,$$(@F)'
2422         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2423         network_extralibs="-lsocket -lnsl"
2424         add_cppflags -D__EXTENSIONS__
2425         # When using suncc to build, the Solaris linker will mark
2426         # an executable with each instruction set encountered by
2427         # the Solaris assembler.  As our libraries contain their own
2428         # guards for processor-specific code, instead suppress
2429         # generation of the HWCAPS ELF section on Solaris x86 only.
2430         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2431         nm_opts='-P -g'
2432         ;;
2433     netbsd)
2434         disable symver
2435         oss_indev_extralibs="-lossaudio"
2436         oss_outdev_extralibs="-lossaudio"
2437         ;;
2438     openbsd)
2439         enable malloc_aligned
2440         # On OpenBSD 4.5. the compiler does not use PIC unless
2441         # explicitly using -fPIC. Libav builds fine without PIC,
2442         # however the generated executable will not do anything
2443         # (simply quits with exit-code 1, no crash, no output).
2444         # Thus explicitly enable PIC here.
2445         enable pic
2446         disable symver
2447         SHFLAGS='-shared'
2448         oss_indev_extralibs="-lossaudio"
2449         oss_outdev_extralibs="-lossaudio"
2450         ;;
2451     dragonfly)
2452         enable malloc_aligned
2453         disable symver
2454         ;;
2455     freebsd)
2456         enable malloc_aligned
2457         ;;
2458     bsd/os)
2459         add_extralibs -lpoll -lgnugetopt
2460         ;;
2461     darwin)
2462         enable malloc_aligned
2463         gas="gas-preprocessor.pl $cc"
2464         enabled ppc && add_asflags -force_cpusubtype_ALL
2465         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2466         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2467         add_ldflags -Wl,-dynamic,-search_paths_first
2468         SLIBSUF=".dylib"
2469         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2470         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2471         AVSERVERLDFLAGS=-Wl,-bind_at_load
2472         objformat="macho"
2473         enabled x86_64 && objformat="macho64"
2474         enabled_any pic shared ||
2475             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2476         ;;
2477     mingw32*)
2478         if test $target_os = "mingw32ce"; then
2479             disable network
2480         else
2481             target_os=mingw32
2482         fi
2483         LIBTARGET=i386
2484         if enabled x86_64; then
2485             enable malloc_aligned
2486             LIBTARGET="i386:x86-64"
2487         elif enabled arm; then
2488             LIBTARGET=arm-wince
2489         fi
2490         shlibdir_default="$bindir_default"
2491         SLIBPREF=""
2492         SLIBSUF=".dll"
2493         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2494         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2495         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2496         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2497         SLIB_INSTALL_LINKS=
2498         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2499         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2500         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'
2501         objformat="win32"
2502         dlltool="${cross_prefix}dlltool"
2503         enable dos_paths
2504         check_cflags -fno-common
2505         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2506                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2507                 die "ERROR: MinGW runtime version must be >= 3.15."
2508         add_cppflags -U__STRICT_ANSI__
2509         ;;
2510     cygwin*)
2511         target_os=cygwin
2512         shlibdir_default="$bindir_default"
2513         SLIBPREF="cyg"
2514         SLIBSUF=".dll"
2515         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2516         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2517         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2518         objformat="win32"
2519         enable dos_paths
2520         check_cflags -fno-common
2521         add_cppflags -U__STRICT_ANSI__
2522         ;;
2523     *-dos|freedos|opendos)
2524         network_extralibs="-lsocket"
2525         objformat="coff"
2526         enable dos_paths
2527         add_cppflags -U__STRICT_ANSI__
2528         ;;
2529     linux)
2530         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2531         enable dv1394
2532         ;;
2533     irix*)
2534         target_os=irix
2535         ranlib="echo ignoring ranlib"
2536         ;;
2537     os/2*)
2538         ln_s="cp -f"
2539         objformat="aout"
2540         add_cppflags -D_GNU_SOURCE
2541         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2542         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2543         AVSERVERLDFLAGS=""
2544         LIBSUF="_s.a"
2545         SLIBPREF=""
2546         SLIBSUF=".dll"
2547         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2548         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2549         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2550           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2551           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2552           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2553           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2554           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2555         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2556           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2557         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2558         enable dos_paths
2559         ;;
2560     gnu/kfreebsd)
2561         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2562         ;;
2563     gnu)
2564         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2565         ;;
2566     qnx)
2567         add_cppflags -D_QNX_SOURCE
2568         network_extralibs="-lsocket"
2569         ;;
2570     symbian)
2571         SLIBSUF=".dll"
2572         enable dos_paths
2573         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2574         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2575         add_ldflags -Wl,--target1-abs,--no-undefined \
2576                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2577                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2578         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2579                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2580                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2581         ;;
2582     none)
2583         ;;
2584     *)
2585         die "Unknown OS '$target_os'."
2586         ;;
2587 esac
2588
2589 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2590
2591 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2592
2593 set_default $PATHS_LIST
2594
2595 # we need to build at least one lib type
2596 if ! enabled_any static shared; then
2597     cat <<EOF
2598 At least one library type must be built.
2599 Specify --enable-static to build the static libraries or --enable-shared to
2600 build the shared libraries as well. To only build the shared libraries specify
2601 --disable-static in addition to --enable-shared.
2602 EOF
2603     exit 1;
2604 fi
2605
2606 die_license_disabled() {
2607     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2608 }
2609
2610 die_license_disabled gpl libcdio
2611 die_license_disabled gpl libx264
2612 die_license_disabled gpl libxavs
2613 die_license_disabled gpl libxvid
2614 die_license_disabled gpl x11grab
2615
2616 die_license_disabled nonfree libfaac
2617 die_license_disabled nonfree openssl
2618
2619 die_license_disabled version3 libopencore_amrnb
2620 die_license_disabled version3 libopencore_amrwb
2621 die_license_disabled version3 libvo_aacenc
2622 die_license_disabled version3 libvo_amrwbenc
2623
2624 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2625
2626 disabled optimizations || check_cflags -fomit-frame-pointer
2627
2628 enable_pic() {
2629     enable pic
2630     add_cppflags -DPIC
2631     add_cflags   -fPIC
2632     add_asflags  -fPIC
2633 }
2634
2635 enabled pic && enable_pic
2636
2637 check_cc <<EOF || die "Symbol mangling check failed."
2638 int ff_extern;
2639 EOF
2640 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2641 extern_prefix=${sym%%ff_extern*}
2642
2643 check_cc <<EOF && enable inline_asm
2644 void foo(void) { __asm__ volatile ("" ::); }
2645 EOF
2646
2647 _restrict=
2648 for restrict_keyword in restrict __restrict__ __restrict; do
2649     check_cc <<EOF && _restrict=$restrict_keyword && break
2650 void foo(char * $restrict_keyword p);
2651 EOF
2652 done
2653
2654 check_cc <<EOF && enable attribute_packed
2655 struct { int x; } __attribute__((packed)) x;
2656 EOF
2657
2658 check_cc <<EOF && enable attribute_may_alias
2659 union { int x; } __attribute__((may_alias)) x;
2660 EOF
2661
2662 check_cc <<EOF || die "endian test failed"
2663 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2664 EOF
2665 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2666
2667 if enabled alpha; then
2668
2669     check_cflags -mieee
2670
2671 elif enabled arm; then
2672
2673     enabled thumb && check_cflags -mthumb || check_cflags -marm
2674     nogas=die
2675
2676     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2677         enable vfp_args
2678     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2679         case "${cross_prefix:-$cc}" in
2680             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2681             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2682 __asm__ (".eabi_attribute 28, 1");
2683 int main(void) { return 0; }
2684 EOF
2685         esac
2686         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2687     fi
2688
2689     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2690     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2691     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2692     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2693     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2694     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2695     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2696
2697     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2698
2699     enabled_all armv6t2 shared !pic && enable_pic
2700
2701 elif enabled mips; then
2702
2703     check_asm loongson '"dmult.g $1, $2, $3"'
2704     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2705
2706 elif enabled ppc; then
2707
2708     enable local_aligned_8 local_aligned_16
2709
2710     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2711     check_asm ibm_asm   '"add 0, 0, 0"'
2712     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2713     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2714
2715     # AltiVec flags: The FSF version of GCC differs from the Apple version
2716     if enabled altivec; then
2717         nogas=warn
2718         check_cflags -maltivec -mabi=altivec &&
2719         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2720         check_cflags -faltivec
2721
2722         # check if our compiler supports Motorola AltiVec C API
2723         check_cc <<EOF || disable altivec
2724 $inc_altivec_h
2725 int main(void) {
2726     vector signed int v1, v2, v3;
2727     v1 = vec_add(v2,v3);
2728     return 0;
2729 }
2730 EOF
2731
2732         # check if our compiler supports braces for vector declarations
2733         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2734 $inc_altivec_h
2735 int main (void) { (vector int) {1}; return 0; }
2736 EOF
2737     fi
2738
2739 elif enabled sparc; then
2740
2741     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2742         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2743
2744 elif enabled x86; then
2745
2746     enable local_aligned_8 local_aligned_16
2747
2748     # check whether EBP is available on x86
2749     # As 'i' is stored on the stack, this program will crash
2750     # if the base pointer is used to access it because the
2751     # base pointer is cleared in the inline assembly code.
2752     check_exec_crash <<EOF && enable ebp_available
2753     volatile int i=0;
2754     __asm__ volatile (
2755         "xorl %%ebp, %%ebp"
2756     ::: "%ebp");
2757     return i;
2758 EOF
2759
2760     # check whether EBX is available on x86
2761     check_asm ebx_available '""::"b"(0)' &&
2762         check_asm ebx_available '"":::"%ebx"'
2763
2764     # check whether xmm clobbers are supported
2765     check_asm xmm_clobbers '"":::"%xmm0"'
2766
2767     # check whether binutils is new enough to compile SSSE3/MMX2
2768     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2769     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2770
2771     if ! disabled_any asm mmx yasm; then
2772         if check_cmd $yasmexe --version; then
2773             enabled x86_64 && yasm_extra="-m amd64"
2774             yasm_debug="-g dwarf2"
2775         elif check_cmd nasm -v; then
2776             yasmexe=nasm
2777             yasm_debug="-g -F dwarf"
2778             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2779         fi
2780
2781         YASMFLAGS="-f $objformat $yasm_extra"
2782         enabled pic               && append YASMFLAGS "-DPIC"
2783         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2784         case "$objformat" in
2785             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2786         esac
2787
2788         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2789             die "yasm not found, use --disable-yasm for a crippled build"
2790         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2791     fi
2792
2793     case "$cpu" in
2794         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2795             disable fast_clz
2796         ;;
2797     esac
2798
2799 fi
2800
2801 if enabled asm; then
2802     as=${gas:=$as}
2803     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2804         $nogas "GNU assembler not found, install gas-preprocessor"
2805 fi
2806
2807 check_ldflags -Wl,--as-needed
2808
2809 if check_func dlopen; then
2810     ldl=
2811 elif check_func dlopen -ldl; then
2812     ldl=-ldl
2813 fi
2814
2815 if enabled network; then
2816     check_type "sys/types.h sys/socket.h" socklen_t
2817     check_type netdb.h "struct addrinfo"
2818     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2819     check_type netinet/in.h "struct sockaddr_in6"
2820     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2821     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2822     # Prefer arpa/inet.h over winsock2
2823     if check_header arpa/inet.h ; then
2824         check_func closesocket
2825     elif check_header winsock2.h ; then
2826         check_func_headers winsock2.h closesocket -lws2 && \
2827             network_extralibs="-lws2" || \
2828         { check_func_headers winsock2.h closesocket -lws2_32 && \
2829             network_extralibs="-lws2_32"; }
2830         check_type ws2tcpip.h socklen_t
2831         check_type ws2tcpip.h "struct addrinfo"
2832         check_type ws2tcpip.h "struct ipv6_mreq"
2833         check_type ws2tcpip.h "struct sockaddr_in6"
2834         check_type ws2tcpip.h "struct sockaddr_storage"
2835         check_struct winsock2.h "struct sockaddr" sa_len
2836     else
2837         disable network
2838     fi
2839 fi
2840
2841 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2842 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2843
2844 check_func  fcntl
2845 check_func  fork
2846 check_func  getaddrinfo $network_extralibs
2847 check_func  gethrtime
2848 check_func  getrusage
2849 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2850 check_func  inet_aton $network_extralibs
2851 check_func  isatty
2852 check_func  localtime_r
2853 check_func  ${malloc_prefix}memalign            && enable memalign
2854 check_func  mkstemp
2855 check_func  mmap
2856 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2857 check_func  setrlimit
2858 check_func  strerror_r
2859 check_func  strptime
2860 check_func  strtok_r
2861 check_func  sched_getaffinity
2862 check_func  sysconf
2863 check_func  sysctl
2864 check_func_headers io.h setmode
2865 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2866 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2867 check_func_headers windows.h GetProcessAffinityMask
2868 check_func_headers windows.h GetProcessTimes
2869 check_func_headers windows.h MapViewOfFile
2870 check_func_headers windows.h VirtualAlloc
2871
2872 check_header dlfcn.h
2873 check_header dxva2api.h
2874 check_header malloc.h
2875 check_header poll.h
2876 check_header sys/mman.h
2877 check_header sys/param.h
2878 check_header sys/resource.h
2879 check_header sys/select.h
2880 check_header vdpau/vdpau.h
2881 check_header vdpau/vdpau_x11.h
2882 check_header X11/extensions/XvMClib.h
2883
2884 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2885
2886 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2887 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2888
2889 if ! disabled w32threads && ! enabled pthreads; then
2890     check_func _beginthreadex && enable w32threads
2891 fi
2892
2893 # check for some common methods of building with pthread support
2894 # do this before the optional library checks as some of them require pthreads
2895 if ! disabled pthreads && ! enabled w32threads; then
2896     enable pthreads
2897     if check_func pthread_create; then
2898         :
2899     elif check_func pthread_create -pthread; then
2900         add_cflags -pthread
2901         add_extralibs -pthread
2902     elif check_func pthread_create -pthreads; then
2903         add_cflags -pthreads
2904         add_extralibs -pthreads
2905     elif check_func pthread_create -lpthreadGC2; then
2906         add_extralibs -lpthreadGC2
2907     elif ! check_lib pthread.h pthread_create -lpthread; then
2908         disable pthreads
2909     fi
2910 fi
2911
2912 for thread in $THREADS_LIST; do
2913     if enabled $thread; then
2914         test -n "$thread_type" &&
2915             die "ERROR: Only one thread type must be selected." ||
2916             thread_type="$thread"
2917     fi
2918 done
2919
2920 check_lib math.h sin -lm && LIBM="-lm"
2921 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2922
2923 check_mathfunc exp2
2924 check_mathfunc exp2f
2925 check_mathfunc llrint
2926 check_mathfunc llrintf
2927 check_mathfunc log2
2928 check_mathfunc log2f
2929 check_mathfunc lrint
2930 check_mathfunc lrintf
2931 check_mathfunc round
2932 check_mathfunc roundf
2933 check_mathfunc trunc
2934 check_mathfunc truncf
2935
2936 # these are off by default, so fail if requested and not available
2937 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2938 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2939 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2940 enabled libdirac   && require_pkg_config dirac                          \
2941     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2942     "dirac_decoder_init dirac_encoder_init"
2943 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2944 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2945 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2946 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2947 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2948 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2949 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2950 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2951 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2952 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2953 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2954 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2955 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2956 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2957 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2958 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2959 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2960 enabled libvpx     && {
2961     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2962                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2963     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2964                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2965 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2966                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2967                         die "ERROR: libx264 version must be >= 0.118."; }
2968 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2969 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2970 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2971 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2972                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2973                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2974                         die "ERROR: openssl not found"; }
2975
2976 # libdc1394 check
2977 if enabled libdc1394; then
2978     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2979         enable libdc1394_2; } ||
2980     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2981         enable libdc1394_1; } ||
2982     die "ERROR: No version of libdc1394 found "
2983 fi
2984
2985 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2986     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2987     enable sdl &&
2988     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2989 fi
2990
2991 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2992
2993 check_header linux/fb.h
2994 check_header linux/videodev.h
2995 check_header linux/videodev2.h
2996 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2997
2998 check_header sys/videoio.h
2999
3000 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3001 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3002 # w32api 3.12 had it defined wrong
3003 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3004
3005 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3006 { check_header dev/bktr/ioctl_meteor.h &&
3007   check_header dev/bktr/ioctl_bt848.h; } ||
3008 { check_header machine/ioctl_meteor.h &&
3009   check_header machine/ioctl_bt848.h; } ||
3010 { check_header dev/video/meteor/ioctl_meteor.h &&
3011   check_header dev/video/bktr/ioctl_bt848.h; } ||
3012 check_header dev/ic/bt8xx.h
3013
3014 check_header sndio.h
3015 check_header sys/soundcard.h
3016 check_header soundcard.h
3017
3018 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3019
3020 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3021
3022 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3023
3024 enabled libcdio &&
3025     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3026
3027 enabled x11grab                         &&
3028 check_header X11/Xlib.h                 &&
3029 check_header X11/extensions/XShm.h      &&
3030 check_header X11/extensions/Xfixes.h    &&
3031 check_func XOpenDisplay -lX11           &&
3032 check_func XShmCreateImage -lX11 -lXext &&
3033 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3034
3035 # check for VDA header
3036 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3037     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3038 fi
3039
3040 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3041 check_cpp_condition \
3042     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3043     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3044       disable vdpau; }
3045 fi
3046
3047 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3048
3049 # add some useful compiler flags if supported
3050 check_cflags -Wdeclaration-after-statement
3051 check_cflags -Wall
3052 check_cflags -Wno-parentheses
3053 check_cflags -Wno-switch
3054 check_cflags -Wno-format-zero-length
3055 check_cflags -Wdisabled-optimization
3056 check_cflags -Wpointer-arith
3057 check_cflags -Wredundant-decls
3058 check_cflags -Wno-pointer-sign
3059 check_cflags -Wcast-qual
3060 check_cflags -Wwrite-strings
3061 check_cflags -Wtype-limits
3062 check_cflags -Wundef
3063 check_cflags -Wmissing-prototypes
3064 check_cflags -Wstrict-prototypes
3065 enabled extra_warnings && check_cflags -Winline
3066
3067 # add some linker flags
3068 check_ldflags -Wl,--warn-common
3069 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3070 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3071
3072 echo "X{};" > $TMPV
3073 if test_ldflags -Wl,--version-script,$TMPV; then
3074     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3075     check_cc <<EOF && enable symver_asm_label
3076 void ff_foo(void) __asm__ ("av_foo@VERSION");
3077 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3078 EOF
3079     check_cc <<EOF && enable symver_gnu_asm
3080 __asm__(".symver ff_foo,av_foo@VERSION");
3081 void ff_foo(void) {}
3082 EOF
3083 fi
3084
3085 if [ -n "$optflags" ]; then
3086     add_cflags $optflags
3087 elif enabled small; then
3088     add_cflags $size_cflags
3089 elif enabled optimizations; then
3090     add_cflags $speed_cflags
3091 else
3092     add_cflags $noopt_cflags
3093 fi
3094 check_cflags -fno-math-errno
3095 check_cflags -fno-signed-zeros
3096
3097 if enabled icc; then
3098     # Just warnings, no remarks
3099     check_cflags -w1
3100     # -wd: Disable following warnings
3101     # 144, 167, 556: -Wno-pointer-sign
3102     # 1292: attribute "foo" ignored
3103     # 10006: ignoring unknown option -fno-signed-zeros
3104     # 10148: ignoring unknown option -Wno-parentheses
3105     # 10156: ignoring option '-W'; no argument required
3106     check_cflags -wd144,167,556,1292,10006,10148,10156
3107     # 11030: Warning unknown option --as-needed
3108     # 10156: ignoring option '-export'; no argument required
3109     check_ldflags -wd10156,11030
3110     # Allow to compile with optimizations
3111     check_ldflags -march=$cpu
3112     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3113     enable ebp_available
3114     if enabled x86_32; then
3115         test ${icc_version%%.*} -ge 11 && \
3116             check_cflags -falign-stack=maintain-16-byte || \
3117             disable aligned_stack
3118     fi
3119 elif enabled ccc; then
3120     # disable some annoying warnings
3121     add_cflags -msg_disable cvtu32to64
3122     add_cflags -msg_disable embedcomment
3123     add_cflags -msg_disable needconstext
3124     add_cflags -msg_disable nomainieee
3125     add_cflags -msg_disable ptrmismatch1
3126     add_cflags -msg_disable unreachcode
3127 elif enabled gcc; then
3128     check_cflags -fno-tree-vectorize
3129     check_cflags -Werror=implicit-function-declaration
3130     check_cflags -Werror=missing-prototypes
3131     check_cflags -Werror=declaration-after-statement
3132 elif enabled llvm_gcc; then
3133     check_cflags -mllvm -stack-alignment=16
3134 elif enabled clang; then
3135     check_cflags -mllvm -stack-alignment=16
3136     check_cflags -Qunused-arguments
3137 elif enabled armcc; then
3138     # 2523: use of inline assembler is deprecated
3139     add_cflags -W${armcc_opt},--diag_suppress=2523
3140     add_cflags -W${armcc_opt},--diag_suppress=1207
3141     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3142     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3143     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3144     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3145 elif enabled tms470; then
3146     add_cflags -pds=824 -pds=837
3147 elif enabled pathscale; then
3148     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3149 fi
3150
3151 enabled_any $THREADS_LIST      && enable threads
3152
3153 check_deps $CONFIG_LIST       \
3154            $CONFIG_EXTRA      \
3155            $HAVE_LIST         \
3156            $ALL_COMPONENTS    \
3157            $ALL_TESTS         \
3158
3159 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3160
3161 ! enabled_any memalign posix_memalign malloc_aligned &&
3162     enabled_any $need_memalign && enable memalign_hack
3163
3164 echo "install prefix            $prefix"
3165 echo "source path               $source_path"
3166 echo "C compiler                $cc"
3167 echo "ARCH                      $arch ($cpu)"
3168 if test "$build_suffix" != ""; then
3169     echo "build suffix              $build_suffix"
3170 fi
3171 if test "$extra_version" != ""; then
3172     echo "version string suffix     $extra_version"
3173 fi
3174 echo "big-endian                ${bigendian-no}"
3175 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3176 if enabled x86; then
3177     echo "${yasmexe}                      ${yasm-no}"
3178     echo "MMX enabled               ${mmx-no}"
3179     echo "MMX2 enabled              ${mmx2-no}"
3180     echo "3DNow! enabled            ${amd3dnow-no}"
3181     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3182     echo "SSE enabled               ${sse-no}"
3183     echo "SSSE3 enabled             ${ssse3-no}"
3184     echo "AVX enabled               ${avx-no}"
3185     echo "CMOV enabled              ${cmov-no}"
3186     echo "CMOV is fast              ${fast_cmov-no}"
3187     echo "EBX available             ${ebx_available-no}"
3188     echo "EBP available             ${ebp_available-no}"
3189 fi
3190 if enabled arm; then
3191     echo "ARMv5TE enabled           ${armv5te-no}"
3192     echo "ARMv6 enabled             ${armv6-no}"
3193     echo "ARMv6T2 enabled           ${armv6t2-no}"
3194     echo "ARM VFP enabled           ${armvfp-no}"
3195     echo "IWMMXT enabled            ${iwmmxt-no}"
3196     echo "NEON enabled              ${neon-no}"
3197 fi
3198 if enabled mips; then
3199     echo "MMI enabled               ${mmi-no}"
3200 fi
3201 if enabled ppc; then
3202     echo "AltiVec enabled           ${altivec-no}"
3203     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3204     echo "dcbzl available           ${dcbzl-no}"
3205 fi
3206 if enabled sparc; then
3207     echo "VIS enabled               ${vis-no}"
3208 fi
3209 echo "debug symbols             ${debug-no}"
3210 echo "optimize for size         ${small-no}"
3211 echo "optimizations             ${optimizations-no}"
3212 echo "static                    ${static-no}"
3213 echo "shared                    ${shared-no}"
3214 echo "postprocessing support    ${postproc-no}"
3215 echo "new filter support        ${avfilter-no}"
3216 echo "network support           ${network-no}"
3217 echo "threading support         ${thread_type-no}"
3218 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3219 echo "SDL support               ${sdl-no}"
3220 echo "Sun medialib support      ${mlib-no}"
3221 echo "libdxva2 enabled          ${dxva2-no}"
3222 echo "libva enabled             ${vaapi-no}"
3223 echo "libvdpau enabled          ${vdpau-no}"
3224 echo "AVISynth enabled          ${avisynth-no}"
3225 echo "frei0r enabled            ${frei0r-no}"
3226 echo "gnutls enabled            ${gnutls-no}"
3227 echo "libcdio support           ${libcdio-no}"
3228 echo "libdc1394 support         ${libdc1394-no}"
3229 echo "libdirac enabled          ${libdirac-no}"
3230 echo "libfaac enabled           ${libfaac-no}"
3231 echo "libgsm enabled            ${libgsm-no}"
3232 echo "libmp3lame enabled        ${libmp3lame-no}"
3233 echo "libnut enabled            ${libnut-no}"
3234 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3235 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3236 echo "libopencv support         ${libopencv-no}"
3237 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3238 echo "libpulse enabled          ${libpulse-no}"
3239 echo "librtmp enabled           ${librtmp-no}"
3240 echo "libschroedinger enabled   ${libschroedinger-no}"
3241 echo "libspeex enabled          ${libspeex-no}"
3242 echo "libtheora enabled         ${libtheora-no}"
3243 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3244 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3245 echo "libvorbis enabled         ${libvorbis-no}"
3246 echo "libvpx enabled            ${libvpx-no}"
3247 echo "libx264 enabled           ${libx264-no}"
3248 echo "libxavs enabled           ${libxavs-no}"
3249 echo "libxvid enabled           ${libxvid-no}"
3250 echo "openssl enabled           ${openssl-no}"
3251 echo "zlib enabled              ${zlib-no}"
3252 echo "bzlib enabled             ${bzlib-no}"
3253 echo
3254
3255 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3256     echo "Enabled ${type}s:"
3257     eval list=\$$(toupper $type)_LIST
3258     print_enabled '_*' $list | sort | pr -r -3 -t
3259     echo
3260 done
3261
3262 license="LGPL version 2.1 or later"
3263 if enabled nonfree; then
3264     license="nonfree and unredistributable"
3265 elif enabled gplv3; then
3266     license="GPL version 3 or later"
3267 elif enabled lgplv3; then
3268     license="LGPL version 3 or later"
3269 elif enabled gpl; then
3270     license="GPL version 2 or later"
3271 fi
3272
3273 echo "License: $license"
3274
3275 echo "Creating config.mak and config.h..."
3276
3277 test -e Makefile || $ln_s "$source_path/Makefile" .
3278
3279 config_files="$TMPH config.mak"
3280
3281 cat > config.mak <<EOF
3282 # Automatically generated by configure - do not modify!
3283 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3284 prefix=$prefix
3285 LIBDIR=\$(DESTDIR)$libdir
3286 SHLIBDIR=\$(DESTDIR)$shlibdir
3287 INCDIR=\$(DESTDIR)$incdir
3288 BINDIR=\$(DESTDIR)$bindir
3289 DATADIR=\$(DESTDIR)$datadir
3290 MANDIR=\$(DESTDIR)$mandir
3291 SRC_PATH=$source_path
3292 CC_IDENT=$cc_ident
3293 ARCH=$arch
3294 CC=$cc
3295 AS=$as
3296 LD=$ld
3297 DEPCC=$dep_cc
3298 YASM=$yasmexe
3299 YASMDEP=$yasmexe
3300 AR=$ar
3301 RANLIB=$ranlib
3302 LN_S=$ln_s
3303 CPPFLAGS=$CPPFLAGS
3304 CFLAGS=$CFLAGS
3305 ASFLAGS=$ASFLAGS
3306 AS_O=$CC_O
3307 CC_O=$CC_O
3308 DLLTOOL=$dlltool
3309 LDFLAGS=$LDFLAGS
3310 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3311 SHFLAGS=$SHFLAGS
3312 YASMFLAGS=$YASMFLAGS
3313 BUILDSUF=$build_suffix
3314 FULLNAME=$FULLNAME
3315 LIBPREF=$LIBPREF
3316 LIBSUF=$LIBSUF
3317 LIBNAME=$LIBNAME
3318 SLIBPREF=$SLIBPREF
3319 SLIBSUF=$SLIBSUF
3320 EXESUF=$EXESUF
3321 EXTRA_VERSION=$extra_version
3322 DEPFLAGS=$DEPFLAGS
3323 CCDEP=$CCDEP
3324 ASDEP=$ASDEP
3325 CC_DEPFLAGS=$CC_DEPFLAGS
3326 AS_DEPFLAGS=$AS_DEPFLAGS
3327 HOSTCC=$host_cc
3328 HOSTCFLAGS=$host_cflags
3329 HOSTEXESUF=$HOSTEXESUF
3330 HOSTLDFLAGS=$host_ldflags
3331 HOSTLIBS=$host_libs
3332 TARGET_EXEC=$target_exec
3333 TARGET_PATH=$target_path
3334 SDL_LIBS=$sdl_libs
3335 SDL_CFLAGS=$sdl_cflags
3336 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3337 EXTRALIBS=$extralibs
3338 INSTALL=install
3339 LIBTARGET=${LIBTARGET}
3340 SLIBNAME=${SLIBNAME}
3341 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3342 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3343 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3344 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3345 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3346 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3347 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3348 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3349 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3350 EOF
3351
3352 get_version(){
3353     name=$1
3354     file=$source_path/$2
3355     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3356     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3357     lcname=$(tolower $name)
3358     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3359     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3360 }
3361
3362 get_version LIBAVCODEC  libavcodec/version.h
3363 get_version LIBAVDEVICE libavdevice/avdevice.h
3364 get_version LIBAVFILTER libavfilter/avfilter.h
3365 get_version LIBAVFORMAT libavformat/version.h
3366 get_version LIBAVUTIL   libavutil/avutil.h
3367 get_version LIBPOSTPROC libpostproc/postprocess.h
3368 get_version LIBSWSCALE  libswscale/swscale.h
3369
3370 cat > $TMPH <<EOF
3371 /* Automatically generated by configure - do not modify! */
3372 #ifndef LIBAV_CONFIG_H
3373 #define LIBAV_CONFIG_H
3374 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3375 #define LIBAV_LICENSE "$(c_escape $license)"
3376 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3377 #define CC_TYPE "$cc_type"
3378 #define CC_VERSION $cc_version
3379 #define restrict $_restrict
3380 #define EXTERN_PREFIX "${extern_prefix}"
3381 #define EXTERN_ASM ${extern_prefix}
3382 #define SLIBSUF "$SLIBSUF"
3383 EOF
3384
3385 test -n "$malloc_prefix" &&
3386     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3387
3388 if enabled small || disabled optimizations; then
3389     echo "#undef  av_always_inline"  >> $TMPH
3390     if enabled small; then
3391         echo "#define av_always_inline inline"  >> $TMPH
3392     else
3393         echo "#define av_always_inline av_unused"  >> $TMPH
3394     fi
3395 fi
3396
3397 if enabled yasm; then
3398     append config_files $TMPASM
3399     printf '' >$TMPASM
3400 fi
3401
3402 print_config ARCH_   "$config_files" $ARCH_LIST
3403 print_config HAVE_   "$config_files" $HAVE_LIST
3404 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3405                                      $CONFIG_EXTRA      \
3406                                      $ALL_COMPONENTS    \
3407
3408 cat >>config.mak <<EOF
3409 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3410 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3411 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3412 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3413 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3414 EOF
3415
3416 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3417
3418 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3419 cp_if_changed $TMPH config.h
3420 touch .config
3421
3422 enabled yasm && cp_if_changed $TMPASM config.asm
3423
3424 cat > $TMPH <<EOF
3425 /* Generated by ffconf */
3426 #ifndef AVUTIL_AVCONFIG_H
3427 #define AVUTIL_AVCONFIG_H
3428 EOF
3429
3430 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3431
3432 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3433
3434 cp_if_changed $TMPH libavutil/avconfig.h
3435
3436 test -n "$WARNINGS" && printf "\n$WARNINGS"
3437
3438 # build pkg-config files
3439
3440 pkgconfig_generate(){
3441 name=$1
3442 shortname=${name#lib}${build_suffix}
3443 comment=$2
3444 version=$3
3445 libs=$4
3446 requires=$5
3447 enabled ${name#lib} || return 0
3448 mkdir -p $name
3449 cat <<EOF > $name/$name.pc
3450 prefix=$prefix
3451 exec_prefix=\${prefix}
3452 libdir=$libdir
3453 includedir=$incdir
3454
3455 Name: $name
3456 Description: $comment
3457 Version: $version
3458 Requires: $(enabled shared || echo $requires)
3459 Requires.private: $(enabled shared && echo $requires)
3460 Conflicts:
3461 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3462 Libs.private: $(enabled shared && echo $libs)
3463 Cflags: -I\${includedir}
3464 EOF
3465 cat <<EOF > $name/$name-uninstalled.pc
3466 prefix=
3467 exec_prefix=
3468 libdir=\${pcfiledir}
3469 includedir=${source_path}
3470
3471 Name: $name
3472 Description: $comment
3473 Version: $version
3474 Requires: $requires
3475 Conflicts:
3476 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3477 Cflags: -I\${includedir}
3478 EOF
3479 }
3480
3481 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3482 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3483 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3484 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3485 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3486 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3487 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"