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

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