configure

   1 #!/bin/sh
   2 #
   3 # Libav configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken Libav."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Help options:
  63   --help                   print this message
  64   --list-decoders          show all available decoders
  65   --list-encoders          show all available encoders
  66   --list-hwaccels          show all available hardware accelerators
  67   --list-demuxers          show all available demuxers
  68   --list-muxers            show all available muxers
  69   --list-parsers           show all available parsers
  70   --list-protocols         show all available protocols
  71   --list-bsfs              show all available bitstream filters
  72   --list-indevs            show all available input devices
  73   --list-outdevs           show all available output devices
  74   --list-filters           show all available filters
  75
  76 Standard options:
  77   --logfile=FILE           log tests and output to FILE [config.log]
  78   --disable-logging        do not log configure debug information
  79   --prefix=PREFIX          install in PREFIX [$prefix]
  80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  81   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  82   --libdir=DIR             install libs in DIR [PREFIX/lib]
  83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  84   --incdir=DIR             install includes in DIR [PREFIX/include]
  85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  86
  87 Licensing options:
  88   --enable-gpl             allow use of GPL code, the resulting libs
  89                            and binaries will be under GPL [no]
  90   --enable-version3        upgrade (L)GPL to version 3 [no]
  91   --enable-nonfree         allow use of nonfree code, the resulting libs
  92                            and binaries will be unredistributable [no]
  93
  94 Configuration options:
  95   --disable-static         do not build static libraries [no]
  96   --enable-shared          build shared libraries [no]
  97   --enable-small           optimize for size instead of speed
  98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101
 102 Component options:
 103   --disable-doc            do not build documentation
 104   --disable-avconv         disable avconv build
 105   --disable-avplay         disable avplay build
 106   --disable-avprobe        disable avprobe build
 107   --disable-avserver       disable avserver build
 108   --disable-avdevice       disable libavdevice build
 109   --disable-avcodec        disable libavcodec build
 110   --disable-avformat       disable libavformat build
 111   --disable-swscale        disable libswscale build
 112   --disable-avfilter       disable video filter support [no]
 113   --disable-avresample     disable libavresample build [no]
 114   --disable-pthreads       disable pthreads [auto]
 115   --disable-w32threads     disable Win32 threads [auto]
 116   --enable-x11grab         enable X11 grabbing [no]
 117   --disable-network        disable network support [no]
 118   --disable-dct            disable DCT code
 119   --disable-mdct           disable MDCT code
 120   --disable-rdft           disable RDFT code
 121   --disable-fft            disable FFT code
 122   --enable-dxva2           enable DXVA2 code
 123   --enable-vaapi           enable VAAPI code
 124   --enable-vda             enable VDA code
 125   --enable-vdpau           enable VDPAU code
 126
 127 Individual component options:
 128   --disable-everything     disable all components listed below
 129   --disable-encoder=NAME   disable encoder NAME
 130   --enable-encoder=NAME    enable encoder NAME
 131   --disable-encoders       disable all encoders
 132   --disable-decoder=NAME   disable decoder NAME
 133   --enable-decoder=NAME    enable decoder NAME
 134   --disable-decoders       disable all decoders
 135   --disable-hwaccel=NAME   disable hwaccel NAME
 136   --enable-hwaccel=NAME    enable hwaccel NAME
 137   --disable-hwaccels       disable all hwaccels
 138   --disable-muxer=NAME     disable muxer NAME
 139   --enable-muxer=NAME      enable muxer NAME
 140   --disable-muxers         disable all muxers
 141   --disable-demuxer=NAME   disable demuxer NAME
 142   --enable-demuxer=NAME    enable demuxer NAME
 143   --disable-demuxers       disable all demuxers
 144   --enable-parser=NAME     enable parser NAME
 145   --disable-parser=NAME    disable parser NAME
 146   --disable-parsers        disable all parsers
 147   --enable-bsf=NAME        enable bitstream filter NAME
 148   --disable-bsf=NAME       disable bitstream filter NAME
 149   --disable-bsfs           disable all bitstream filters
 150   --enable-protocol=NAME   enable protocol NAME
 151   --disable-protocol=NAME  disable protocol NAME
 152   --disable-protocols      disable all protocols
 153   --enable-indev=NAME      enable input device NAME
 154   --disable-indev=NAME     disable input device NAME
 155   --disable-indevs         disable input devices
 156   --enable-outdev=NAME     enable output device NAME
 157   --disable-outdev=NAME    disable output device NAME
 158   --disable-outdevs        disable output devices
 159   --disable-devices        disable all devices
 160   --enable-filter=NAME     enable filter NAME
 161   --disable-filter=NAME    disable filter NAME
 162   --disable-filters        disable all filters
 163
 164 External library support:
 165   --enable-avisynth        enable reading of AVISynth script files [no]
 166   --enable-bzlib           enable bzlib [autodetect]
 167   --enable-frei0r          enable frei0r video filtering
 168   --enable-gnutls          enable gnutls [no]
 169   --enable-libcdio         enable audio CD grabbing with libcdio
 170   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 171                            and libraw1394 [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfreetype     enable libfreetype [no]
 174   --enable-libgsm          enable GSM support via libgsm [no]
 175   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 176   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 177   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 178   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 179   --enable-libopencv       enable video filtering via libopencv [no]
 180   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 181   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 182   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 183   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 184   --enable-libspeex        enable Speex support via libspeex [no]
 185   --enable-libtheora       enable Theora encoding via libtheora [no]
 186   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 187   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 188   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 189                            native implementation exists [no]
 190   --enable-libvpx          enable VP8 support via libvpx [no]
 191   --enable-libx264         enable H.264 encoding via x264 [no]
 192   --enable-libxavs         enable AVS encoding via xavs [no]
 193   --enable-libxvid         enable Xvid encoding via xvidcore,
 194                            native MPEG-4/Xvid encoder exists [no]
 195   --enable-openssl         enable openssl [no]
 196   --enable-zlib            enable zlib [autodetect]
 197
 198 Advanced options (experts only):
 199   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 200   --enable-cross-compile   assume a cross-compiler is used
 201   --sysroot=PATH           root of cross-build tree
 202   --sysinclude=PATH        location of cross-build system headers
 203   --target-os=OS           compiler targets OS [$target_os]
 204   --target-exec=CMD        command to run executables on target
 205   --target-path=DIR        path to view of build directory on target
 206   --nm=NM                  use nm tool
 207   --ar=AR                  use archive tool AR [$ar_default]
 208   --as=AS                  use assembler AS [$as_default]
 209   --cc=CC                  use C compiler CC [$cc_default]
 210   --ld=LD                  use linker LD
 211   --host-cc=HOSTCC         use host C compiler HOSTCC
 212   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 213   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 214   --host-libs=HLIBS        use libs HLIBS when linking for host
 215   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 216   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 217   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 218   --extra-version=STRING   version string suffix []
 219   --optflags               override optimization-related compiler flags
 220   --build-suffix=SUFFIX    library name suffix []
 221   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 222   --arch=ARCH              select architecture [$arch]
 223   --cpu=CPU                select the minimum required CPU (affects
 224                            instruction selection, may crash on older CPUs)
 225   --enable-pic             build position-independent code
 226   --enable-sram            allow use of on-chip SRAM
 227   --disable-symver         disable symbol versioning
 228   --disable-fastdiv        disable table-based division
 229   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 230   --disable-safe-bitstream-reader
 231                            disable buffer boundary checking in bitreaders
 232                            (faster, but may crash)
 233   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 234
 235 Optimization options (experts only):
 236   --disable-asm            disable all assembler optimizations
 237   --disable-altivec        disable AltiVec optimizations
 238   --disable-amd3dnow       disable 3DNow! optimizations
 239   --disable-amd3dnowext    disable 3DNow! extended optimizations
 240   --disable-mmx            disable MMX optimizations
 241   --disable-mmx2           disable MMX2 optimizations
 242   --disable-sse            disable SSE optimizations
 243   --disable-ssse3          disable SSSE3 optimizations
 244   --disable-avx            disable AVX optimizations
 245   --disable-armv5te        disable armv5te optimizations
 246   --disable-armv6          disable armv6 optimizations
 247   --disable-armv6t2        disable armv6t2 optimizations
 248   --disable-armvfp         disable ARM VFP optimizations
 249   --disable-mmi            disable MMI optimizations
 250   --disable-neon           disable NEON optimizations
 251   --disable-vis            disable VIS optimizations
 252   --disable-yasm           disable use of yasm assembler
 253
 254 Developer options (useful when working on Libav itself):
 255   --disable-debug          disable debugging symbols
 256   --enable-debug=LEVEL     set the debug level [$debuglevel]
 257   --disable-optimizations  disable compiler optimizations
 258   --enable-extra-warnings  enable more compiler warnings
 259   --samples=PATH           location of test samples for FATE, if not set use
 260                            \$LIBAV_SAMPLES at make invocation time.
 261   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 262                            should be used only for debugging purposes)
 263
 264 NOTE: Object files are built at the place where configure is launched.
 265 EOF
 266   exit 0
 267 }
 268
 269 quotes='""'
 270
 271 log(){
 272     echo "$@" >> $logfile
 273 }
 274
 275 log_file(){
 276     log BEGIN $1
 277     pr -n -t $1 >> $logfile
 278     log END $1
 279 }
 280
 281 echolog(){
 282     log "$@"
 283     echo "$@"
 284 }
 285
 286 warn(){
 287     log "WARNING: $*"
 288     WARNINGS="${WARNINGS}WARNING: $*\n"
 289 }
 290
 291 die(){
 292     echolog "$@"
 293     cat <<EOF
 294
 295 If you think configure made a mistake, make sure you are using the latest
 296 version from Git.  If the latest version fails, report the problem to the
 297 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 298 EOF
 299     if disabled logging; then
 300         cat <<EOF
 301 Rerun configure with logging enabled (do not use --disable-logging), and
 302 include the log this produces with your report.
 303 EOF
 304     else
 305 cat <<EOF
 306 Include the log file "$logfile" produced by configure as this will help
 307 solving the problem.
 308 EOF
 309     fi
 310     exit 1
 311 }
 312
 313 # Avoid locale weirdness, besides we really just want to translate ASCII.
 314 toupper(){
 315     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 316 }
 317
 318 tolower(){
 319     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 320 }
 321
 322 c_escape(){
 323     echo "$*" | sed 's/["\\]/\\\0/g'
 324 }
 325
 326 sh_quote(){
 327     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 328     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 329     echo "$v"
 330 }
 331
 332 cleanws(){
 333     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 334 }
 335
 336 filter(){
 337     pat=$1
 338     shift
 339     for v; do
 340         eval "case $v in $pat) echo $v ;; esac"
 341     done
 342 }
 343
 344 filter_out(){
 345     pat=$1
 346     shift
 347     for v; do
 348         eval "case $v in $pat) ;; *) echo $v ;; esac"
 349     done
 350 }
 351
 352 map(){
 353     m=$1
 354     shift
 355     for v; do eval $m; done
 356 }
 357
 358 set_all(){
 359     value=$1
 360     shift
 361     for var in $*; do
 362         eval $var=$value
 363     done
 364 }
 365
 366 set_weak(){
 367     value=$1
 368     shift
 369     for var; do
 370         eval : \${$var:=$value}
 371     done
 372 }
 373
 374 set_safe(){
 375     var=$1
 376     shift
 377     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 378 }
 379
 380 get_safe(){
 381     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 382 }
 383
 384 pushvar(){
 385     for var in $*; do
 386         eval level=\${${var}_level:=0}
 387         eval ${var}_${level}="\$$var"
 388         eval ${var}_level=$(($level+1))
 389     done
 390 }
 391
 392 popvar(){
 393     for var in $*; do
 394         eval level=\${${var}_level:-0}
 395         test $level = 0 && continue
 396         eval level=$(($level-1))
 397         eval $var="\${${var}_${level}}"
 398         eval ${var}_level=$level
 399         eval unset ${var}_${level}
 400     done
 401 }
 402
 403 enable(){
 404     set_all yes $*
 405 }
 406
 407 disable(){
 408     set_all no $*
 409 }
 410
 411 enable_weak(){
 412     set_weak yes $*
 413 }
 414
 415 disable_weak(){
 416     set_weak no $*
 417 }
 418
 419 enable_safe(){
 420     for var; do
 421         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 422     done
 423 }
 424
 425 disable_safe(){
 426     for var; do
 427         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 428     done
 429 }
 430
 431 do_enable_deep(){
 432     for var; do
 433         enabled $var && continue
 434         eval sel="\$${var}_select"
 435         eval sgs="\$${var}_suggest"
 436         pushvar var sgs
 437         enable_deep $sel
 438         popvar sgs
 439         enable_deep_weak $sgs
 440         popvar var
 441     done
 442 }
 443
 444 enable_deep(){
 445     do_enable_deep $*
 446     enable $*
 447 }
 448
 449 enable_deep_weak(){
 450     do_enable_deep $*
 451     enable_weak $*
 452 }
 453
 454 enabled(){
 455     test "${1#!}" = "$1" && op== || op=!=
 456     eval test "x\$${1#!}" $op "xyes"
 457 }
 458
 459 disabled(){
 460     test "${1#!}" = "$1" && op== || op=!=
 461     eval test "x\$${1#!}" $op "xno"
 462 }
 463
 464 enabled_all(){
 465     for opt; do
 466         enabled $opt || return 1
 467     done
 468 }
 469
 470 disabled_all(){
 471     for opt; do
 472         disabled $opt || return 1
 473     done
 474 }
 475
 476 enabled_any(){
 477     for opt; do
 478         enabled $opt && return 0
 479     done
 480 }
 481
 482 disabled_any(){
 483     for opt; do
 484         disabled $opt && return 0
 485     done
 486     return 1
 487 }
 488
 489 set_default(){
 490     for opt; do
 491         eval : \${$opt:=\$${opt}_default}
 492     done
 493 }
 494
 495 is_in(){
 496     value=$1
 497     shift
 498     for var in $*; do
 499         [ $var = $value ] && return 0
 500     done
 501     return 1
 502 }
 503
 504 check_deps(){
 505     for cfg; do
 506         cfg="${cfg#!}"
 507         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 508         disabled ${cfg}_checking && continue
 509         enable ${cfg}_checking
 510
 511         eval dep_all="\$${cfg}_deps"
 512         eval dep_any="\$${cfg}_deps_any"
 513         eval dep_sel="\$${cfg}_select"
 514         eval dep_sgs="\$${cfg}_suggest"
 515         eval dep_ifa="\$${cfg}_if"
 516         eval dep_ifn="\$${cfg}_if_any"
 517
 518         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 519         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 520         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 521
 522         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 523         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 524         enabled_all  $dep_all || disable $cfg
 525         enabled_any  $dep_any || disable $cfg
 526         disabled_any $dep_sel && disable $cfg
 527
 528         if enabled $cfg; then
 529             eval dep_extralibs="\$${cfg}_extralibs"
 530             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 531             enable_deep $dep_sel
 532             enable_deep_weak $dep_sgs
 533         fi
 534
 535         disable ${cfg}_checking
 536     done
 537 }
 538
 539 print_config_h(){
 540     enabled $1 && v=1 || v=0
 541     echo "#define $2 $v"
 542 }
 543
 544 print_config_mak(){
 545     enabled $1 && v= || v=!
 546     echo "$v$2=yes"
 547 }
 548
 549 print_config_asm(){
 550     enabled $1 && v=1 || v=0
 551     echo "%define $2 $v"
 552 }
 553
 554 print_config(){
 555     pfx=$1
 556     files=$2
 557     shift 2
 558     for cfg; do
 559         ucname="$(toupper $cfg)"
 560         for f in $files; do
 561             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 562         done
 563     done
 564 }
 565
 566 print_enabled(){
 567     test "$1" = -n && end=" " && shift || end="\n"
 568     suf=$1
 569     shift
 570     for v; do
 571         enabled $v && printf "%s$end" ${v%$suf};
 572     done
 573 }
 574
 575 append(){
 576     var=$1
 577     shift
 578     eval "$var=\"\$$var $*\""
 579 }
 580
 581 prepend(){
 582     var=$1
 583     shift
 584     eval "$var=\"$* \$$var\""
 585 }
 586
 587 add_cppflags(){
 588     append CPPFLAGS $($filter_cppflags "$@")
 589 }
 590
 591 add_cflags(){
 592     append CFLAGS $($filter_cflags "$@")
 593 }
 594
 595 add_asflags(){
 596     append ASFLAGS $($filter_asflags "$@")
 597 }
 598
 599 add_ldflags(){
 600     append LDFLAGS "$@"
 601 }
 602
 603 add_extralibs(){
 604     prepend extralibs "$@"
 605 }
 606
 607 check_cmd(){
 608     log "$@"
 609     "$@" >> $logfile 2>&1
 610 }
 611
 612 check_cc(){
 613     log check_cc "$@"
 614     cat > $TMPC
 615     log_file $TMPC
 616     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 617 }
 618
 619 check_cpp(){
 620     log check_cpp "$@"
 621     cat > $TMPC
 622     log_file $TMPC
 623     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 624 }
 625
 626 check_as(){
 627     log check_as "$@"
 628     cat > $TMPC
 629     log_file $TMPC
 630     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 631 }
 632
 633 check_asm(){
 634     log check_asm "$@"
 635     name="$1"
 636     code="$2"
 637     shift 2
 638     disable $name
 639     check_as "$@" <<EOF && enable $name
 640 void foo(void){ __asm__ volatile($code); }
 641 EOF
 642 }
 643
 644 check_yasm(){
 645     log check_yasm "$@"
 646     echo "$1" > $TMPS
 647     log_file $TMPS
 648     shift 1
 649     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 650 }
 651
 652 check_ld(){
 653     log check_ld "$@"
 654     flags=''
 655     libs=''
 656     for f; do
 657         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 658     done
 659     check_cc $($filter_cflags $flags) || return
 660     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 661 }
 662
 663 check_cppflags(){
 664     log check_cppflags "$@"
 665     set -- $($filter_cppflags "$@")
 666     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 667 int x;
 668 EOF
 669 }
 670
 671 check_cflags(){
 672     log check_cflags "$@"
 673     set -- $($filter_cflags "$@")
 674     check_cc "$@" <<EOF && append CFLAGS "$@"
 675 int x;
 676 EOF
 677 }
 678
 679 test_ldflags(){
 680     log test_ldflags "$@"
 681     check_ld "$@" <<EOF
 682 int main(void){ return 0; }
 683 EOF
 684 }
 685
 686 check_ldflags(){
 687     log check_ldflags "$@"
 688     test_ldflags "$@" && add_ldflags "$@"
 689 }
 690
 691 check_header(){
 692     log check_header "$@"
 693     header=$1
 694     shift
 695     disable_safe $header
 696     check_cpp "$@" <<EOF && enable_safe $header
 697 #include <$header>
 698 int x;
 699 EOF
 700 }
 701
 702 check_func(){
 703     log check_func "$@"
 704     func=$1
 705     shift
 706     disable $func
 707     check_ld "$@" <<EOF && enable $func
 708 extern int $func();
 709 int main(void){ $func(); }
 710 EOF
 711 }
 712
 713 check_mathfunc(){
 714     log check_mathfunc "$@"
 715     func=$1
 716     shift
 717     disable $func
 718     check_ld "$@" <<EOF && enable $func
 719 #include <math.h>
 720 float foo(float f) { return $func(f); }
 721 int main(void){ return 0; }
 722 EOF
 723 }
 724
 725 check_func_headers(){
 726     log check_func_headers "$@"
 727     headers=$1
 728     funcs=$2
 729     shift 2
 730     {
 731         for hdr in $headers; do
 732             echo "#include <$hdr>"
 733         done
 734         for func in $funcs; do
 735             echo "long check_$func(void) { return (long) $func; }"
 736         done
 737         echo "int main(void) { return 0; }"
 738     } | check_ld "$@" && enable $funcs && enable_safe $headers
 739 }
 740
 741 check_cpp_condition(){
 742     log check_cpp_condition "$@"
 743     header=$1
 744     condition=$2
 745     shift 2
 746     check_cpp $($filter_cppflags "$@") <<EOF
 747 #include <$header>
 748 #if !($condition)
 749 #error "unsatisfied condition: $condition"
 750 #endif
 751 EOF
 752 }
 753
 754 check_lib(){
 755     log check_lib "$@"
 756     header="$1"
 757     func="$2"
 758     shift 2
 759     check_header $header && check_func $func "$@" && add_extralibs "$@"
 760 }
 761
 762 check_lib2(){
 763     log check_lib2 "$@"
 764     headers="$1"
 765     funcs="$2"
 766     shift 2
 767     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 768 }
 769
 770 check_pkg_config(){
 771     log check_pkg_config "$@"
 772     pkg="$1"
 773     headers="$2"
 774     funcs="$3"
 775     shift 3
 776     $pkg_config --exists $pkg || return
 777     pkg_cflags=$($pkg_config --cflags $pkg)
 778     pkg_libs=$($pkg_config --libs $pkg)
 779     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 780         set_safe ${pkg}_cflags $pkg_cflags   &&
 781         set_safe ${pkg}_libs   $pkg_libs
 782 }
 783
 784 check_exec(){
 785     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 786 }
 787
 788 check_exec_crash(){
 789     code=$(cat)
 790
 791     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 792     # are safe but may not be available everywhere.  Thus we use
 793     # raise(SIGTERM) instead.  The check is run in a subshell so we
 794     # can redirect the "Terminated" message from the shell.  SIGBUS
 795     # is not defined by standard C so it is used conditionally.
 796
 797     (check_exec "$@") >> $logfile 2>&1 <<EOF
 798 #include <signal.h>
 799 static void sighandler(int sig){
 800     raise(SIGTERM);
 801 }
 802 int main(void){
 803     signal(SIGILL, sighandler);
 804     signal(SIGFPE, sighandler);
 805     signal(SIGSEGV, sighandler);
 806 #ifdef SIGBUS
 807     signal(SIGBUS, sighandler);
 808 #endif
 809     { $code }
 810 }
 811 EOF
 812 }
 813
 814 check_type(){
 815     log check_type "$@"
 816     headers=$1
 817     type=$2
 818     shift 2
 819     disable_safe "$type"
 820     incs=""
 821     for hdr in $headers; do
 822         incs="$incs
 823 #include <$hdr>"
 824     done
 825     check_cc "$@" <<EOF && enable_safe "$type"
 826 $incs
 827 $type v;
 828 EOF
 829 }
 830
 831 check_struct(){
 832     log check_type "$@"
 833     headers=$1
 834     struct=$2
 835     member=$3
 836     shift 3
 837     disable_safe "${struct}_${member}"
 838     incs=""
 839     for hdr in $headers; do
 840         incs="$incs
 841 #include <$hdr>"
 842     done
 843     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 844 $incs
 845 const void *p = &(($struct *)0)->$member;
 846 EOF
 847 }
 848
 849 require(){
 850     name="$1"
 851     header="$2"
 852     func="$3"
 853     shift 3
 854     check_lib $header $func "$@" || die "ERROR: $name not found"
 855 }
 856
 857 require2(){
 858     name="$1"
 859     headers="$2"
 860     func="$3"
 861     shift 3
 862     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 863 }
 864
 865 require_pkg_config(){
 866     pkg="$1"
 867     check_pkg_config "$@" || die "ERROR: $pkg not found"
 868     add_cflags    $(get_safe ${pkg}_cflags)
 869     add_extralibs $(get_safe ${pkg}_libs)
 870 }
 871
 872 check_host_cc(){
 873     log check_host_cc "$@"
 874     cat > $TMPC
 875     log_file $TMPC
 876     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 877 }
 878
 879 check_host_cflags(){
 880     log check_host_cflags "$@"
 881     check_host_cc "$@" <<EOF && append host_cflags "$@"
 882 int x;
 883 EOF
 884 }
 885
 886 apply(){
 887     file=$1
 888     shift
 889     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 890 }
 891
 892 cp_if_changed(){
 893     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 894     mkdir -p "$(dirname $2)"
 895     cp -f "$1" "$2"
 896 }
 897
 898 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 899 # system-dependent things.
 900
 901 COMPONENT_LIST="
 902     bsfs
 903     decoders
 904     demuxers
 905     encoders
 906     filters
 907     hwaccels
 908     indevs
 909     muxers
 910     outdevs
 911     parsers
 912     protocols
 913 "
 914
 915 PROGRAM_LIST="
 916     avconv
 917     avplay
 918     avprobe
 919     avserver
 920 "
 921
 922 CONFIG_LIST="
 923     $COMPONENT_LIST
 924     $PROGRAM_LIST
 925     ac3dsp
 926     avcodec
 927     avdevice
 928     avfilter
 929     avformat
 930     avresample
 931     avisynth
 932     bzlib
 933     dct
 934     doc
 935     dwt
 936     dxva2
 937     fastdiv
 938     fft
 939     frei0r
 940     gnutls
 941     gpl
 942     gray
 943     hardcoded_tables
 944     libcdio
 945     libdc1394
 946     libfaac
 947     libfreetype
 948     libgsm
 949     libilbc
 950     libmp3lame
 951     libopencore_amrnb
 952     libopencore_amrwb
 953     libopencv
 954     libopenjpeg
 955     libpulse
 956     librtmp
 957     libschroedinger
 958     libspeex
 959     libtheora
 960     libvo_aacenc
 961     libvo_amrwbenc
 962     libvorbis
 963     libvpx
 964     libx264
 965     libxavs
 966     libxvid
 967     lsp
 968     mdct
 969     memalign_hack
 970     mpegaudiodsp
 971     network
 972     nonfree
 973     openssl
 974     pic
 975     rdft
 976     rtpdec
 977     runtime_cpudetect
 978     safe_bitstream_reader
 979     shared
 980     sinewin
 981     small
 982     sram
 983     static
 984     swscale
 985     swscale_alpha
 986     thumb
 987     vaapi
 988     vda
 989     vdpau
 990     version3
 991     xmm_clobber_test
 992     x11grab
 993     zlib
 994 "
 995
 996 THREADS_LIST='
 997     pthreads
 998     w32threads
 999 '
1000
1001 ARCH_LIST='
1002     alpha
1003     arm
1004     avr32
1005     avr32_ap
1006     avr32_uc
1007     bfin
1008     ia64
1009     m68k
1010     mips
1011     mips64
1012     parisc
1013     ppc
1014     ppc64
1015     s390
1016     sh4
1017     sparc
1018     sparc64
1019     tomi
1020     x86
1021     x86_32
1022     x86_64
1023 '
1024
1025 ARCH_EXT_LIST='
1026     altivec
1027     amd3dnow
1028     amd3dnowext
1029     armv5te
1030     armv6
1031     armv6t2
1032     armvfp
1033     avx
1034     mmi
1035     mmx
1036     mmx2
1037     neon
1038     ppc4xx
1039     sse
1040     ssse3
1041     vfpv3
1042     vis
1043 '
1044
1045 HAVE_LIST_PUB='
1046     bigendian
1047     fast_unaligned
1048 '
1049
1050 HAVE_LIST="
1051     $ARCH_EXT_LIST
1052     $HAVE_LIST_PUB
1053     $THREADS_LIST
1054     aligned_malloc
1055     aligned_stack
1056     alsa_asoundlib_h
1057     altivec_h
1058     arpa_inet_h
1059     asm_mod_y
1060     attribute_may_alias
1061     attribute_packed
1062     cbrtf
1063     closesocket
1064     cmov
1065     dcbzl
1066     dev_bktr_ioctl_bt848_h
1067     dev_bktr_ioctl_meteor_h
1068     dev_ic_bt8xx_h
1069     dev_video_bktr_ioctl_bt848_h
1070     dev_video_meteor_ioctl_meteor_h
1071     dlfcn_h
1072     dlopen
1073     dos_paths
1074     ebp_available
1075     ebx_available
1076     exp2
1077     exp2f
1078     fast_64bit
1079     fast_clz
1080     fast_cmov
1081     fcntl
1082     fork
1083     getaddrinfo
1084     gethrtime
1085     GetProcessAffinityMask
1086     GetProcessMemoryInfo
1087     GetProcessTimes
1088     GetSystemTimeAsFileTime
1089     getrusage
1090     gettimeofday
1091     gnu_as
1092     ibm_asm
1093     inet_aton
1094     inline_asm
1095     isatty
1096     isinf
1097     isnan
1098     jack_port_get_latency_range
1099     ldbrx
1100     libdc1394_1
1101     libdc1394_2
1102     llrint
1103     llrintf
1104     local_aligned_16
1105     local_aligned_8
1106     localtime_r
1107     log2
1108     log2f
1109     loongson
1110     lrint
1111     lrintf
1112     machine_ioctl_bt848_h
1113     machine_ioctl_meteor_h
1114     malloc_h
1115     MapViewOfFile
1116     memalign
1117     mkstemp
1118     mmap
1119     nanosleep
1120     netinet_sctp_h
1121     poll_h
1122     posix_memalign
1123     round
1124     roundf
1125     sched_getaffinity
1126     sdl
1127     sdl_video_size
1128     setmode
1129     setrlimit
1130     Sleep
1131     sndio_h
1132     socklen_t
1133     soundcard_h
1134     strerror_r
1135     strptime
1136     strtok_r
1137     struct_addrinfo
1138     struct_ipv6_mreq
1139     struct_rusage_ru_maxrss
1140     struct_sockaddr_in6
1141     struct_sockaddr_sa_len
1142     struct_sockaddr_storage
1143     struct_v4l2_frmivalenum_discrete
1144     symver
1145     symver_asm_label
1146     symver_gnu_asm
1147     sysconf
1148     sysctl
1149     sys_mman_h
1150     sys_param_h
1151     sys_resource_h
1152     sys_select_h
1153     sys_soundcard_h
1154     sys_time_h
1155     sys_videoio_h
1156     threads
1157     trunc
1158     truncf
1159     unistd_h
1160     usleep
1161     vfp_args
1162     VirtualAlloc
1163     windows_h
1164     winsock2_h
1165     xform_asm
1166     xmm_clobbers
1167     yasm
1168 "
1169
1170 # options emitted with CONFIG_ prefix but not available on command line
1171 CONFIG_EXTRA="
1172     aandct
1173     avutil
1174     golomb
1175     gplv3
1176     h264chroma
1177     h264dsp
1178     h264pred
1179     h264qpel
1180     huffman
1181     lgplv3
1182     lpc
1183 "
1184
1185 CMDLINE_SELECT="
1186     $ARCH_EXT_LIST
1187     $CONFIG_LIST
1188     $THREADS_LIST
1189     asm
1190     cross_compile
1191     debug
1192     extra_warnings
1193     logging
1194     optimizations
1195     symver
1196     yasm
1197 "
1198
1199 PATHS_LIST='
1200     bindir
1201     datadir
1202     incdir
1203     libdir
1204     mandir
1205     prefix
1206     shlibdir
1207 '
1208
1209 CMDLINE_SET="
1210     $PATHS_LIST
1211     ar
1212     arch
1213     as
1214     build_suffix
1215     cc
1216     cpu
1217     cross_prefix
1218     dep_cc
1219     extra_version
1220     host_cc
1221     host_cflags
1222     host_ldflags
1223     host_libs
1224     host_os
1225     ld
1226     logfile
1227     malloc_prefix
1228     nm
1229     optflags
1230     pkg_config
1231     samples
1232     sysinclude
1233     sysroot
1234     target_exec
1235     target_os
1236     target_path
1237 "
1238
1239 CMDLINE_APPEND="
1240     extra_cflags
1241 "
1242
1243 # code dependency declarations
1244
1245 # architecture extensions
1246
1247 armv5te_deps="arm"
1248 armv6_deps="arm"
1249 armv6t2_deps="arm"
1250 armvfp_deps="arm"
1251 neon_deps="arm"
1252 vfpv3_deps="armvfp"
1253
1254 mmi_deps="mips"
1255
1256 altivec_deps="ppc"
1257 ppc4xx_deps="ppc"
1258
1259 vis_deps="sparc"
1260
1261 x86_64_suggest="cmov fast_cmov"
1262 amd3dnow_deps="mmx"
1263 amd3dnowext_deps="amd3dnow"
1264 mmx_deps="x86"
1265 mmx2_deps="mmx"
1266 sse_deps="mmx"
1267 ssse3_deps="sse"
1268 avx_deps="ssse3"
1269
1270 aligned_stack_if_any="ppc x86"
1271 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1272 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1273 fast_unaligned_if_any="armv6 ppc x86"
1274
1275 inline_asm_deps="!tms470"
1276 need_memalign="altivec neon sse"
1277
1278 symver_if_any="symver_asm_label symver_gnu_asm"
1279
1280 # subsystems
1281 dct_select="rdft"
1282 mdct_select="fft"
1283 rdft_select="fft"
1284 mpegaudiodsp_select="dct"
1285
1286 # decoders / encoders / hardware accelerators
1287 aac_decoder_select="mdct sinewin"
1288 aac_encoder_select="mdct sinewin"
1289 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1290 ac3_decoder_select="mdct ac3dsp ac3_parser"
1291 ac3_encoder_select="mdct ac3dsp"
1292 ac3_fixed_encoder_select="mdct ac3dsp"
1293 alac_encoder_select="lpc"
1294 amrnb_decoder_select="lsp"
1295 amrwb_decoder_select="lsp"
1296 atrac1_decoder_select="mdct sinewin"
1297 atrac3_decoder_select="mdct"
1298 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1299 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1300 cavs_decoder_select="golomb"
1301 cook_decoder_select="mdct sinewin"
1302 cscd_decoder_suggest="zlib"
1303 dca_decoder_select="mdct"
1304 dnxhd_encoder_select="aandct"
1305 dxa_decoder_select="zlib"
1306 eac3_decoder_select="ac3_decoder"
1307 eac3_encoder_select="mdct ac3dsp"
1308 eamad_decoder_select="aandct"
1309 eatgq_decoder_select="aandct"
1310 eatqi_decoder_select="aandct"
1311 ffv1_decoder_select="golomb"
1312 flac_decoder_select="golomb"
1313 flac_encoder_select="golomb lpc"
1314 flashsv_decoder_select="zlib"
1315 flashsv_encoder_select="zlib"
1316 flashsv2_decoder_select="zlib"
1317 flv_decoder_select="h263_decoder"
1318 flv_encoder_select="h263_encoder"
1319 fraps_decoder_select="huffman"
1320 h261_encoder_select="aandct"
1321 h263_decoder_select="h263_parser"
1322 h263_encoder_select="aandct"
1323 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1324 h263i_decoder_select="h263_decoder"
1325 h263p_encoder_select="h263_encoder"
1326 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1327 h264_dxva2_hwaccel_deps="dxva2api_h"
1328 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1329 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1330 h264_vda_hwaccel_select="vda h264_decoder"
1331 h264_vdpau_decoder_select="vdpau h264_decoder"
1332 iac_decoder_select="fft mdct sinewin"
1333 imc_decoder_select="fft mdct sinewin"
1334 jpegls_decoder_select="golomb"
1335 jpegls_encoder_select="golomb"
1336 ljpeg_encoder_select="aandct"
1337 loco_decoder_select="golomb"
1338 mjpeg_encoder_select="aandct"
1339 mlp_decoder_select="mlp_parser"
1340 mp1_decoder_select="mpegaudiodsp"
1341 mp1float_decoder_select="mpegaudiodsp"
1342 mp2_decoder_select="mpegaudiodsp"
1343 mp2float_decoder_select="mpegaudiodsp"
1344 mp3_decoder_select="mpegaudiodsp"
1345 mp3adu_decoder_select="mpegaudiodsp"
1346 mp3adufloat_decoder_select="mpegaudiodsp"
1347 mp3float_decoder_select="mpegaudiodsp"
1348 mp3on4_decoder_select="mpegaudiodsp"
1349 mp3on4float_decoder_select="mpegaudiodsp"
1350 mpc7_decoder_select="mpegaudiodsp"
1351 mpc8_decoder_select="mpegaudiodsp"
1352 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1353 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1354 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1355 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1356 mpeg1video_encoder_select="aandct"
1357 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1358 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1359 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1360 mpeg2video_encoder_select="aandct"
1361 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1362 mpeg4_encoder_select="h263_encoder"
1363 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1364 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1365 msmpeg4v1_decoder_select="h263_decoder"
1366 msmpeg4v1_encoder_select="h263_encoder"
1367 msmpeg4v2_decoder_select="h263_decoder"
1368 msmpeg4v2_encoder_select="h263_encoder"
1369 msmpeg4v3_decoder_select="h263_decoder"
1370 msmpeg4v3_encoder_select="h263_encoder"
1371 nellymoser_decoder_select="mdct sinewin"
1372 nellymoser_encoder_select="mdct sinewin"
1373 png_decoder_select="zlib"
1374 png_encoder_select="zlib"
1375 qcelp_decoder_select="lsp"
1376 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1377 ra_144_encoder_select="lpc"
1378 ralf_decoder_select="golomb"
1379 rv10_decoder_select="h263_decoder"
1380 rv10_encoder_select="h263_encoder"
1381 rv20_decoder_select="h263_decoder"
1382 rv20_encoder_select="h263_encoder"
1383 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1384 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1385 shorten_decoder_select="golomb"
1386 sipr_decoder_select="lsp"
1387 snow_decoder_select="dwt"
1388 snow_encoder_select="aandct dwt"
1389 svq1_encoder_select="aandct"
1390 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1391 svq3_decoder_suggest="zlib"
1392 theora_decoder_select="vp3_decoder"
1393 tiff_decoder_suggest="zlib"
1394 tiff_encoder_suggest="zlib"
1395 truehd_decoder_select="mlp_decoder"
1396 tscc_decoder_select="zlib"
1397 twinvq_decoder_select="mdct lsp sinewin"
1398 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1399 vc1_dxva2_hwaccel_deps="dxva2api_h"
1400 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1401 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1402 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1403 vc1image_decoder_select="vc1_decoder"
1404 vorbis_decoder_select="mdct"
1405 vorbis_encoder_select="mdct"
1406 vp6_decoder_select="huffman"
1407 vp6a_decoder_select="vp6_decoder"
1408 vp6f_decoder_select="vp6_decoder"
1409 vp8_decoder_select="h264pred h264qpel"
1410 wmapro_decoder_select="mdct sinewin"
1411 wmav1_decoder_select="mdct sinewin"
1412 wmav1_encoder_select="mdct sinewin"
1413 wmav2_decoder_select="mdct sinewin"
1414 wmav2_encoder_select="mdct sinewin"
1415 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1416 wmv1_decoder_select="h263_decoder"
1417 wmv1_encoder_select="h263_encoder"
1418 wmv2_decoder_select="h263_decoder"
1419 wmv2_encoder_select="h263_encoder"
1420 wmv3_decoder_select="vc1_decoder"
1421 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1422 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1423 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1424 wmv3image_decoder_select="wmv3_decoder"
1425 zerocodec_decoder_select="zlib"
1426 zlib_decoder_select="zlib"
1427 zlib_encoder_select="zlib"
1428 zmbv_decoder_select="zlib"
1429 zmbv_encoder_select="zlib"
1430
1431 vaapi_deps="va_va_h"
1432 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1433 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1434
1435 # parsers
1436 h264_parser_select="golomb h264dsp h264pred"
1437
1438 # external libraries
1439 libfaac_encoder_deps="libfaac"
1440 libgsm_decoder_deps="libgsm"
1441 libgsm_encoder_deps="libgsm"
1442 libgsm_ms_decoder_deps="libgsm"
1443 libgsm_ms_encoder_deps="libgsm"
1444 libilbc_decoder_deps="libilbc"
1445 libilbc_encoder_deps="libilbc"
1446 libmp3lame_encoder_deps="libmp3lame"
1447 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1448 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1449 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1450 libopenjpeg_decoder_deps="libopenjpeg"
1451 libschroedinger_decoder_deps="libschroedinger"
1452 libschroedinger_encoder_deps="libschroedinger"
1453 libspeex_decoder_deps="libspeex"
1454 libspeex_encoder_deps="libspeex"
1455 libtheora_encoder_deps="libtheora"
1456 libvo_aacenc_encoder_deps="libvo_aacenc"
1457 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1458 libvorbis_encoder_deps="libvorbis"
1459 libvpx_decoder_deps="libvpx"
1460 libvpx_encoder_deps="libvpx"
1461 libx264_encoder_deps="libx264"
1462 libxavs_encoder_deps="libxavs"
1463 libxvid_encoder_deps="libxvid"
1464
1465 # demuxers / muxers
1466 ac3_demuxer_select="ac3_parser"
1467 asf_stream_muxer_select="asf_muxer"
1468 avisynth_demuxer_deps="avisynth"
1469 dirac_demuxer_select="dirac_parser"
1470 eac3_demuxer_select="ac3_parser"
1471 flac_demuxer_select="flac_parser"
1472 ipod_muxer_select="mov_muxer"
1473 matroska_audio_muxer_select="matroska_muxer"
1474 matroska_demuxer_suggest="zlib bzlib"
1475 mov_demuxer_suggest="zlib"
1476 mp3_demuxer_select="mpegaudio_parser"
1477 mp4_muxer_select="mov_muxer"
1478 mpegts_muxer_select="adts_muxer latm_muxer"
1479 mpegtsraw_demuxer_select="mpegts_demuxer"
1480 mxf_d10_muxer_select="mxf_muxer"
1481 ogg_demuxer_select="golomb"
1482 psp_muxer_select="mov_muxer"
1483 rtp_demuxer_select="sdp_demuxer"
1484 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1485 rtsp_demuxer_select="http_protocol rtpdec"
1486 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1487 sap_demuxer_select="sdp_demuxer"
1488 sap_muxer_select="rtp_muxer rtp_protocol"
1489 sdp_demuxer_select="rtpdec"
1490 spdif_muxer_select="aac_parser"
1491 tg2_muxer_select="mov_muxer"
1492 tgp_muxer_select="mov_muxer"
1493 w64_demuxer_deps="wav_demuxer"
1494
1495 # indevs / outdevs
1496 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1497 alsa_outdev_deps="alsa_asoundlib_h"
1498 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1499 dv1394_indev_deps="dv1394 dv_demuxer"
1500 fbdev_indev_deps="linux_fb_h"
1501 jack_indev_deps="jack_jack_h"
1502 libcdio_indev_deps="libcdio"
1503 libdc1394_indev_deps="libdc1394"
1504 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1505 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1506 pulse_indev_deps="libpulse"
1507 sndio_indev_deps="sndio_h"
1508 sndio_outdev_deps="sndio_h"
1509 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1510 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1511 vfwcap_indev_extralibs="-lavicap32"
1512 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1513
1514 # protocols
1515 gopher_protocol_deps="network"
1516 httpproxy_protocol_deps="network"
1517 httpproxy_protocol_select="tcp_protocol"
1518 http_protocol_deps="network"
1519 http_protocol_select="tcp_protocol"
1520 https_protocol_select="tls_protocol"
1521 librtmp_protocol_deps="librtmp"
1522 librtmpe_protocol_deps="librtmp"
1523 librtmps_protocol_deps="librtmp"
1524 librtmpt_protocol_deps="librtmp"
1525 librtmpte_protocol_deps="librtmp"
1526 mmsh_protocol_select="http_protocol"
1527 mmst_protocol_deps="network"
1528 rtmp_protocol_deps="!librtmp_protocol"
1529 rtmp_protocol_select="tcp_protocol"
1530 rtmphttp_protocol_deps="!librtmp_protocol"
1531 rtmphttp_protocol_select="http_protocol"
1532 rtmpt_protocol_deps="!librtmp_protocol"
1533 rtmpt_protocol_select="rtmphttp_protocol"
1534 rtp_protocol_select="udp_protocol"
1535 sctp_protocol_deps="network netinet_sctp_h"
1536 tcp_protocol_deps="network"
1537 tls_protocol_deps_any="openssl gnutls"
1538 tls_protocol_select="tcp_protocol"
1539 udp_protocol_deps="network"
1540
1541 # filters
1542 blackframe_filter_deps="gpl"
1543 boxblur_filter_deps="gpl"
1544 cropdetect_filter_deps="gpl"
1545 delogo_filter_deps="gpl"
1546 drawtext_filter_deps="libfreetype"
1547 frei0r_filter_deps="frei0r dlopen strtok_r"
1548 frei0r_filter_extralibs='$ldl'
1549 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1550 frei0r_src_filter_extralibs='$ldl'
1551 hqdn3d_filter_deps="gpl"
1552 resample_filter_deps="avresample"
1553 ocv_filter_deps="libopencv"
1554 scale_filter_deps="swscale"
1555 yadif_filter_deps="gpl"
1556
1557 # libraries
1558 avdevice_deps="avcodec avformat"
1559 avformat_deps="avcodec"
1560
1561 # programs
1562 avconv_deps="avcodec avfilter avformat avresample swscale
1563              aformat_filter asyncts_filter
1564              format_filter fps_filter scale_filter setpts_filter"
1565 avplay_deps="avcodec avformat swscale sdl"
1566 avplay_select="rdft"
1567 avprobe_deps="avcodec avformat"
1568 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1569 avserver_extralibs='$ldl'
1570
1571 doc_deps="texi2html"
1572
1573 # tests
1574
1575 test_deps(){
1576     suf1=$1
1577     suf2=$2
1578     shift 2
1579     for v; do
1580         dep=${v%=*}
1581         tests=${v#*=}
1582         for name in ${tests}; do
1583             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1584         done
1585     done
1586 }
1587
1588 mxf_d10_test_deps="avfilter"
1589 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1590
1591 test_deps _muxer _demuxer                                               \
1592     aiff                                                                \
1593     pcm_alaw=alaw                                                       \
1594     asf                                                                 \
1595     au                                                                  \
1596     avi                                                                 \
1597     dv=dv_fmt                                                           \
1598     ffm                                                                 \
1599     flv=flv_fmt                                                         \
1600     gxf                                                                 \
1601     matroska=mkv                                                        \
1602     mmf                                                                 \
1603     mov                                                                 \
1604     pcm_mulaw=mulaw                                                     \
1605     mxf="mxf mxf_d10"                                                   \
1606     nut                                                                 \
1607     ogg                                                                 \
1608     rawvideo=pixfmt                                                     \
1609     rm                                                                  \
1610     swf                                                                 \
1611     mpegts=ts                                                           \
1612     voc                                                                 \
1613     wav                                                                 \
1614     yuv4mpegpipe=yuv4mpeg                                               \
1615
1616 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1617
1618 # default parameters
1619
1620 logfile="config.log"
1621
1622 # installation paths
1623 prefix_default="/usr/local"
1624 bindir_default='${prefix}/bin'
1625 datadir_default='${prefix}/share/avconv'
1626 incdir_default='${prefix}/include'
1627 libdir_default='${prefix}/lib'
1628 mandir_default='${prefix}/share/man'
1629 shlibdir_default="$libdir_default"
1630
1631 # toolchain
1632 ar_default="ar"
1633 cc_default="gcc"
1634 cc_version=\"unknown\"
1635 host_cc_default="gcc"
1636 ln_s="ln -sf"
1637 nm_default="nm"
1638 objformat="elf"
1639 pkg_config_default=pkg-config
1640 ranlib="ranlib"
1641 yasmexe="yasm"
1642
1643 nm_opts='-g'
1644 nogas=":"
1645
1646 # machine
1647 arch_default=$(uname -m)
1648 cpu="generic"
1649
1650 # OS
1651 target_os_default=$(tolower $(uname -s))
1652 host_os=$target_os_default
1653
1654 # configurable options
1655 enable $PROGRAM_LIST
1656
1657 enable avcodec
1658 enable avdevice
1659 enable avfilter
1660 enable avformat
1661 enable avresample
1662 enable avutil
1663 enable swscale
1664
1665 enable asm
1666 enable debug
1667 enable doc
1668 enable fastdiv
1669 enable network
1670 enable optimizations
1671 enable safe_bitstream_reader
1672 enable static
1673 enable swscale_alpha
1674
1675 # build settings
1676 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1677 AVSERVERLDFLAGS=-Wl,-E
1678 LIBPREF="lib"
1679 LIBSUF=".a"
1680 FULLNAME='$(NAME)$(BUILDSUF)'
1681 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1682 SLIBPREF="lib"
1683 SLIBSUF=".so"
1684 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1685 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1686 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1687 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1688 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1689 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1690
1691 AS_O='-o $@'
1692 CC_O='-o $@'
1693
1694 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1695 host_libs='-lm'
1696
1697 target_path='$(CURDIR)'
1698
1699 # since the object filename is not given with the -MM flag, the compiler
1700 # is only able to print the basename, and we must add the path ourselves
1701 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1702 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1703
1704 # find source path
1705 if test -f configure; then
1706     source_path=.
1707 else
1708     source_path=$(cd $(dirname "$0"); pwd)
1709     echo "$source_path" | grep -q '[[:blank:]]' &&
1710         die "Out of tree builds are impossible with whitespace in source path."
1711     test -e "$source_path/config.h" &&
1712         die "Out of tree builds are impossible with config.h in source dir."
1713 fi
1714
1715 for v in "$@"; do
1716     r=${v#*=}
1717     l=${v%"$r"}
1718     r=$(sh_quote "$r")
1719     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1720 done
1721
1722 find_things(){
1723     thing=$1
1724     pattern=$2
1725     file=$source_path/$3
1726     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1727 }
1728
1729 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1730 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1731 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1732 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1733 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1734 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1735 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1736 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1737 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1738 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1739 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1740
1741 ALL_COMPONENTS="
1742     $BSF_LIST
1743     $DECODER_LIST
1744     $DEMUXER_LIST
1745     $ENCODER_LIST
1746     $FILTER_LIST
1747     $HWACCEL_LIST
1748     $INDEV_LIST
1749     $MUXER_LIST
1750     $OUTDEV_LIST
1751     $PARSER_LIST
1752     $PROTOCOL_LIST
1753 "
1754
1755 find_tests(){
1756     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1757 }
1758
1759 LAVF_TESTS=$(find_tests lavf)
1760 LAVFI_TESTS=$(find_tests lavfi)
1761 SEEK_TESTS=$(find_tests seek seek_)
1762
1763 ALL_TESTS="$LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1764
1765 for n in $COMPONENT_LIST; do
1766     v=$(toupper ${n%s})_LIST
1767     eval enable \$$v
1768     eval ${n}_if_any="\$$v"
1769 done
1770
1771 enable $ARCH_EXT_LIST $ALL_TESTS
1772
1773 die_unknown(){
1774     echo "Unknown option \"$1\"."
1775     echo "See $0 --help for available options."
1776     exit 1
1777 }
1778
1779 show_list() {
1780     suffix=_$1
1781     shift
1782     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1783     exit 0
1784 }
1785
1786 for opt do
1787     optval="${opt#*=}"
1788     case "$opt" in
1789     --extra-ldflags=*) add_ldflags $optval
1790     ;;
1791     --extra-libs=*) add_extralibs $optval
1792     ;;
1793     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1794     ;;
1795     --enable-debug=*) debuglevel="$optval"
1796     ;;
1797     --disable-everything)
1798     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1799     ;;
1800     --enable-*=*|--disable-*=*)
1801     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1802     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1803     eval list=\$$(toupper $thing)_LIST
1804     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1805     $action $(filter "$name" $list)
1806     ;;
1807     --enable-?*|--disable-?*)
1808     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1809     if is_in $option $COMPONENT_LIST; then
1810         test $action = disable && action=unset
1811         eval $action \$$(toupper ${option%s})_LIST
1812     elif is_in $option $CMDLINE_SELECT; then
1813         $action $option
1814     else
1815         die_unknown $opt
1816     fi
1817     ;;
1818     --list-*)
1819         NAME="${opt#--list-}"
1820         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1821         NAME=${NAME%s}
1822         eval show_list $NAME \$$(toupper $NAME)_LIST
1823     ;;
1824     --help|-h) show_help
1825     ;;
1826     *)
1827     optname="${opt%%=*}"
1828     optname="${optname#--}"
1829     optname=$(echo "$optname" | sed 's/-/_/g')
1830     if is_in $optname $CMDLINE_SET; then
1831         eval $optname='$optval'
1832     elif is_in $optname $CMDLINE_APPEND; then
1833         append $optname "$optval"
1834     else
1835          die_unknown $opt
1836     fi
1837     ;;
1838     esac
1839 done
1840
1841 disabled logging && logfile=/dev/null
1842
1843 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1844 set >> $logfile
1845
1846 test -n "$cross_prefix" && enable cross_compile
1847
1848 if enabled cross_compile; then
1849     test -n "$arch" && test -n "$target_os" ||
1850         die "Must specify target arch and OS when cross-compiling"
1851 fi
1852
1853 set_default arch target_os
1854
1855 ar_default="${cross_prefix}${ar_default}"
1856 cc_default="${cross_prefix}${cc_default}"
1857 nm_default="${cross_prefix}${nm_default}"
1858 pkg_config_default="${cross_prefix}${pkg_config_default}"
1859 ranlib="${cross_prefix}${ranlib}"
1860
1861 sysinclude_default="${sysroot}/usr/include"
1862
1863 set_default cc nm pkg_config sysinclude
1864 enabled cross_compile || host_cc_default=$cc
1865 set_default host_cc
1866
1867 if ! $pkg_config --version >/dev/null 2>&1; then
1868     warn "$pkg_config not found, library detection may fail."
1869     pkg_config=false
1870 fi
1871
1872 exesuf() {
1873     case $1 in
1874         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1875     esac
1876 }
1877
1878 EXESUF=$(exesuf $target_os)
1879 HOSTEXESUF=$(exesuf $host_os)
1880
1881 # set temporary file name
1882 : ${TMPDIR:=$TEMPDIR}
1883 : ${TMPDIR:=$TMP}
1884 : ${TMPDIR:=/tmp}
1885
1886 if ! check_cmd mktemp -u XXXXXX; then
1887     # simple replacement for missing mktemp
1888     # NOT SAFE FOR GENERAL USE
1889     mktemp(){
1890         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1891     }
1892 fi
1893
1894 tmpfile(){
1895     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1896         (set -C; exec > $tmp) 2>/dev/null ||
1897         die "Unable to create temporary file in $TMPDIR."
1898     append TMPFILES $tmp
1899     eval $1=$tmp
1900 }
1901
1902 trap 'rm -f -- $TMPFILES' EXIT
1903
1904 tmpfile TMPASM .asm
1905 tmpfile TMPC   .c
1906 tmpfile TMPE   $EXESUF
1907 tmpfile TMPH   .h
1908 tmpfile TMPO   .o
1909 tmpfile TMPS   .S
1910 tmpfile TMPSH  .sh
1911 tmpfile TMPV   .ver
1912
1913 unset -f mktemp
1914
1915 chmod +x $TMPE
1916
1917 # make sure we can execute files in $TMPDIR
1918 cat > $TMPSH 2>> $logfile <<EOF
1919 #! /bin/sh
1920 EOF
1921 chmod +x $TMPSH >> $logfile 2>&1
1922 if ! $TMPSH >> $logfile 2>&1; then
1923     cat <<EOF
1924 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1925 variable to another directory and make sure that it is not mounted noexec.
1926 EOF
1927     die "Sanity test failed."
1928 fi
1929
1930 filter_asflags=echo
1931 filter_cflags=echo
1932 filter_cppflags=echo
1933
1934 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1935     cc_type=llvm_gcc
1936     cc_version=__VERSION__
1937     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1938     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1939     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1940     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1941     speed_cflags='-O3'
1942     size_cflags='-Os'
1943 elif $cc -v 2>&1 | grep -qi ^gcc; then
1944     cc_type=gcc
1945     cc_version=__VERSION__
1946     gcc_version=$($cc --version | head -n1)
1947     gcc_basever=$($cc -dumpversion)
1948     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1949     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1950     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1951     if ! $cc -dumpversion | grep -q '^2\.'; then
1952         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1953         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1954     fi
1955     speed_cflags='-O3'
1956     size_cflags='-Os'
1957 elif $cc --version 2>/dev/null | grep -q Intel; then
1958     cc_type=icc
1959     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1960     cc_ident=$($cc --version | head -n1)
1961     icc_version=$($cc -dumpversion)
1962     CC_DEPFLAGS='-MMD'
1963     AS_DEPFLAGS='-MMD'
1964     speed_cflags='-O3'
1965     size_cflags='-Os'
1966     noopt_cflags='-O1'
1967 elif $cc -v 2>&1 | grep -q xlc; then
1968     cc_type=xlc
1969     cc_version="AV_STRINGIFY(__IBMC__)"
1970     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1971     speed_cflags='-O5'
1972     size_cflags='-O5 -qcompact'
1973 elif $cc -V 2>/dev/null | grep -q Compaq; then
1974     cc_type=ccc
1975     cc_version="AV_STRINGIFY(__DECC_VER)"
1976     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1977     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1978     debuglevel=3
1979     add_ldflags -Wl,-z,now # calls to libots crash without this
1980     speed_cflags='-fast'
1981     size_cflags='-O1'
1982 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1983     test -d "$sysroot" || die "No valid sysroot specified."
1984     cc_type=armcc
1985     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1986     cc_ident=$($cc --vsn | head -n1)
1987     armcc_conf="$PWD/armcc.conf"
1988     $cc --arm_linux_configure                 \
1989         --arm_linux_config_file="$armcc_conf" \
1990         --configure_sysroot="$sysroot"        \
1991         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1992         die "Error creating armcc configuration file."
1993     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1994     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1995     as_default="${cross_prefix}gcc"
1996     CC_DEPFLAGS='-MMD'
1997     AS_DEPFLAGS='-MMD'
1998     speed_cflags='-O3'
1999     size_cflags='-Os'
2000     filter_asflags="filter_out -W${armcc_opt}*"
2001 elif $cc -version 2>/dev/null | grep -q TMS470; then
2002     cc_type=tms470
2003     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2004     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2005     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2006     CC_O='-fr=$(@D)'
2007     as_default="${cross_prefix}gcc"
2008     ld_default="${cross_prefix}gcc"
2009     TMPO=$(basename $TMPC .c).o
2010     append TMPFILES $TMPO
2011     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2012     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2013     AS_DEPFLAGS='-MMD'
2014     speed_cflags='-O3 -mf=5'
2015     size_cflags='-O3 -mf=2'
2016     filter_cflags=tms470_flags
2017     tms470_flags(){
2018         for flag; do
2019             case $flag in
2020                 -march=*|-mcpu=*)
2021                     case "${flag#*=}" in
2022                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2023                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2024                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2025                         armv6*|arm11*)          echo -mv=6   ;;
2026                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2027                                                 echo -mv=5e  ;;
2028                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2029                     esac
2030                     ;;
2031                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2032                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2033                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2034                 -msoft-float)   echo --float_support=vfplib       ;;
2035                 -O[0-3]|-mf=*)  echo $flag                        ;;
2036                 -g)             echo -g -mn                       ;;
2037                 -pds=*)         echo $flag                        ;;
2038             esac
2039         done
2040     }
2041 elif $cc -v 2>&1 | grep -q clang; then
2042     cc_type=clang
2043     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2044         cc_version=__clang_version__ || cc_version=__VERSION__
2045     cc_ident=$($cc --version | head -n1)
2046     CC_DEPFLAGS='-MMD'
2047     AS_DEPFLAGS='-MMD'
2048     speed_cflags='-O3'
2049     size_cflags='-Os'
2050 elif $cc -V 2>&1 | grep -q Sun; then
2051     cc_type=suncc
2052     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2053     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2054     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2055     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2056     add_ldflags -xc99
2057     speed_cflags='-O5'
2058     size_cflags='-O5 -xspace'
2059     filter_cflags=suncc_flags
2060     suncc_flags(){
2061         for flag; do
2062             case $flag in
2063                 -march=*|-mcpu=*)
2064                     case "${flag#*=}" in
2065                         native)                   echo -xtarget=native       ;;
2066                         v9|niagara)               echo -xarch=sparc          ;;
2067                         ultrasparc)               echo -xarch=sparcvis       ;;
2068                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2069                         i586|pentium)             echo -xchip=pentium        ;;
2070                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2071                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2072                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2073                         pentium4*)          echo -xtarget=pentium4           ;;
2074                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2075                         *-sse3)             echo -xarch=sse3                 ;;
2076                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2077                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2078                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2079                         k8|opteron|athlon64|athlon-fx)
2080                                                   echo -xarch=sse2a          ;;
2081                         athlon*)                  echo -xarch=pentium_proa   ;;
2082                     esac
2083                     ;;
2084                 -std=c99)             echo -xc99              ;;
2085                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2086                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2087                 -W*,*)                echo $flag              ;;
2088                 -f*-*|-W*)                                    ;;
2089                 *)                    echo $flag              ;;
2090             esac
2091         done
2092     }
2093 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2094     cc_type=pathscale
2095     cc_version=__PATHSCALE__
2096     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2097     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2098     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2099     speed_cflags='-O2'
2100     size_cflags='-Os'
2101     filter_cflags='filter_out -Wdisabled-optimization'
2102 elif $cc -v 2>&1 | grep -q Open64; then
2103     cc_type=open64
2104     cc_version=__OPEN64__
2105     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2106     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2107     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2108     speed_cflags='-O2'
2109     size_cflags='-Os'
2110     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2111 elif $cc -V 2>&1 | grep -q Portland; then
2112     cc_type=pgi
2113     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2114     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2115     opt_common='-alias=ansi -Mlre -Mpre'
2116     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2117     size_cflags="-O2 -Munroll=c:1 $opt_common"
2118     noopt_cflags="-O1"
2119     filter_cflags=pgi_flags
2120     pgi_flags(){
2121         for flag; do
2122             case $flag in
2123                 -fomit-frame-pointer) echo -Mnoframe ;;
2124                 -g)                   echo -gopt ;;
2125                 *)                    echo $flag ;;
2126             esac
2127         done
2128     }
2129 fi
2130
2131 test -n "$cc_type" && enable $cc_type ||
2132     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2133
2134 : ${as_default:=$cc}
2135 : ${dep_cc_default:=$cc}
2136 : ${ld_default:=$cc}
2137 set_default ar as dep_cc ld
2138
2139 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2140 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2141
2142 add_cflags $extra_cflags
2143 add_asflags $extra_cflags
2144
2145 if test -n "$sysroot"; then
2146     case "$cc_type" in
2147         gcc|llvm_gcc|clang)
2148             add_cppflags --sysroot="$sysroot"
2149             add_ldflags --sysroot="$sysroot"
2150         ;;
2151         tms470)
2152             add_cppflags -I"$sysinclude"
2153             add_ldflags  --sysroot="$sysroot"
2154         ;;
2155     esac
2156 fi
2157
2158 if test "$cpu" = host; then
2159     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2160
2161     case "$cc_type" in
2162         gcc|llvm_gcc)
2163             check_native(){
2164                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2165                 sed -n "/cc1.*$1=/{
2166                             s/.*$1=\\([^ ]*\\).*/\\1/
2167                             p
2168                             q
2169                         }" $TMPE
2170             }
2171             cpu=$(check_native -march || check_native -mcpu)
2172         ;;
2173     esac
2174
2175     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2176 fi
2177
2178 # Deal with common $arch aliases
2179 case "$arch" in
2180     arm*)
2181         arch="arm"
2182     ;;
2183     mips|mipsel|IP*)
2184         arch="mips"
2185     ;;
2186     mips64*)
2187         arch="mips"
2188         subarch="mips64"
2189     ;;
2190     parisc|hppa)
2191         arch="parisc"
2192     ;;
2193     parisc64|hppa64)
2194         arch="parisc"
2195         subarch="parisc64"
2196     ;;
2197     "Power Macintosh"|ppc|powerpc)
2198         arch="ppc"
2199     ;;
2200     ppc64|powerpc64)
2201         arch="ppc"
2202         subarch="ppc64"
2203     ;;
2204     s390|s390x)
2205         arch="s390"
2206     ;;
2207     sh4|sh)
2208         arch="sh4"
2209     ;;
2210     sun4u|sparc64)
2211         arch="sparc"
2212         subarch="sparc64"
2213     ;;
2214     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2215         arch="x86"
2216     ;;
2217 esac
2218
2219 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2220 enable $arch
2221
2222 # Add processor-specific flags
2223 if test "$cpu" = generic; then
2224     : do nothing
2225 elif enabled ppc; then
2226
2227     case $(tolower $cpu) in
2228         601|ppc601|powerpc601)
2229             cpuflags="-mcpu=601"
2230             disable altivec
2231         ;;
2232         603*|ppc603*|powerpc603*)
2233             cpuflags="-mcpu=603"
2234             disable altivec
2235         ;;
2236         604*|ppc604*|powerpc604*)
2237             cpuflags="-mcpu=604"
2238             disable altivec
2239         ;;
2240         g3|75*|ppc75*|powerpc75*)
2241             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2242             disable altivec
2243         ;;
2244         g4|745*|ppc745*|powerpc745*)
2245             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2246         ;;
2247         74*|ppc74*|powerpc74*)
2248             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2249         ;;
2250         g5|970|ppc970|powerpc970)
2251             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2252         ;;
2253         power[3-7]*)
2254             cpuflags="-mcpu=$cpu -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__ -D_XOPEN_SOURCE=600
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         # On OpenBSD 4.5. the compiler does not use PIC unless
2437         # explicitly using -fPIC. Libav builds fine without PIC,
2438         # however the generated executable will not do anything
2439         # (simply quits with exit-code 1, no crash, no output).
2440         # Thus explicitly enable PIC here.
2441         enable pic
2442         disable symver
2443         SHFLAGS='-shared'
2444         oss_indev_extralibs="-lossaudio"
2445         oss_outdev_extralibs="-lossaudio"
2446         ;;
2447     dragonfly)
2448         disable symver
2449         ;;
2450     freebsd)
2451         ;;
2452     bsd/os)
2453         add_extralibs -lpoll -lgnugetopt
2454         ;;
2455     darwin)
2456         gas="gas-preprocessor.pl $cc"
2457         enabled ppc && add_asflags -force_cpusubtype_ALL
2458         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2459         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2460         add_ldflags -Wl,-dynamic,-search_paths_first
2461         SLIBSUF=".dylib"
2462         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2463         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2464         AVSERVERLDFLAGS=-Wl,-bind_at_load
2465         objformat="macho"
2466         enabled x86_64 && objformat="macho64"
2467         enabled_any pic shared ||
2468             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2469         ;;
2470     mingw32*)
2471         if test $target_os = "mingw32ce"; then
2472             disable network
2473         else
2474             target_os=mingw32
2475         fi
2476         LIBTARGET=i386
2477         if enabled x86_64; then
2478             LIBTARGET="i386:x86-64"
2479         elif enabled arm; then
2480             LIBTARGET=arm-wince
2481         fi
2482         shlibdir_default="$bindir_default"
2483         SLIBPREF=""
2484         SLIBSUF=".dll"
2485         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2486         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2487         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2488         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2489         SLIB_INSTALL_LINKS=
2490         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2491         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2492         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'
2493         objformat="win32"
2494         dlltool="${cross_prefix}dlltool"
2495         enable dos_paths
2496         check_cflags -fno-common
2497         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2498                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2499                 die "ERROR: MinGW runtime version must be >= 3.15."
2500         add_cppflags -U__STRICT_ANSI__
2501         ;;
2502     cygwin*)
2503         target_os=cygwin
2504         shlibdir_default="$bindir_default"
2505         SLIBPREF="cyg"
2506         SLIBSUF=".dll"
2507         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2508         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2509         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2510         objformat="win32"
2511         enable dos_paths
2512         check_cflags -fno-common
2513         add_cppflags -U__STRICT_ANSI__
2514         ;;
2515     *-dos|freedos|opendos)
2516         network_extralibs="-lsocket"
2517         objformat="coff"
2518         enable dos_paths
2519         add_cppflags -U__STRICT_ANSI__
2520         ;;
2521     linux)
2522         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2523         enable dv1394
2524         ;;
2525     irix*)
2526         target_os=irix
2527         ranlib="echo ignoring ranlib"
2528         ;;
2529     os/2*)
2530         ln_s="cp -f"
2531         objformat="aout"
2532         add_cppflags -D_GNU_SOURCE
2533         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2534         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2535         AVSERVERLDFLAGS=""
2536         LIBSUF="_s.a"
2537         SLIBPREF=""
2538         SLIBSUF=".dll"
2539         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2540         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2541         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2542           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2543           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2544           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2545           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2546           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2547         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2548           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2549         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2550         enable dos_paths
2551         ;;
2552     gnu/kfreebsd)
2553         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2554         ;;
2555     gnu)
2556         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2557         ;;
2558     qnx)
2559         add_cppflags -D_QNX_SOURCE
2560         network_extralibs="-lsocket"
2561         ;;
2562     symbian)
2563         SLIBSUF=".dll"
2564         enable dos_paths
2565         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2566         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2567         add_ldflags -Wl,--target1-abs,--no-undefined \
2568                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2569                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2570         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2571                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2572                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2573         ;;
2574     none)
2575         ;;
2576     *)
2577         die "Unknown OS '$target_os'."
2578         ;;
2579 esac
2580
2581 esc(){
2582     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2583 }
2584
2585 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
2586
2587 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2588
2589 set_default $PATHS_LIST
2590
2591 # we need to build at least one lib type
2592 if ! enabled_any static shared; then
2593     cat <<EOF
2594 At least one library type must be built.
2595 Specify --enable-static to build the static libraries or --enable-shared to
2596 build the shared libraries as well. To only build the shared libraries specify
2597 --disable-static in addition to --enable-shared.
2598 EOF
2599     exit 1;
2600 fi
2601
2602 die_license_disabled() {
2603     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2604 }
2605
2606 die_license_disabled gpl libcdio
2607 die_license_disabled gpl libx264
2608 die_license_disabled gpl libxavs
2609 die_license_disabled gpl libxvid
2610 die_license_disabled gpl x11grab
2611
2612 die_license_disabled nonfree libfaac
2613 die_license_disabled nonfree openssl
2614
2615 die_license_disabled version3 libopencore_amrnb
2616 die_license_disabled version3 libopencore_amrwb
2617 die_license_disabled version3 libvo_aacenc
2618 die_license_disabled version3 libvo_amrwbenc
2619
2620 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2621
2622 disabled optimizations || check_cflags -fomit-frame-pointer
2623
2624 enable_pic() {
2625     enable pic
2626     add_cppflags -DPIC
2627     add_cflags   -fPIC
2628     add_asflags  -fPIC
2629 }
2630
2631 enabled pic && enable_pic
2632
2633 check_cc <<EOF || die "Symbol mangling check failed."
2634 int ff_extern;
2635 EOF
2636 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2637 extern_prefix=${sym%%ff_extern*}
2638
2639 check_cc <<EOF && enable inline_asm
2640 void foo(void) { __asm__ volatile ("" ::); }
2641 EOF
2642
2643 _restrict=
2644 for restrict_keyword in restrict __restrict__ __restrict; do
2645     check_cc <<EOF && _restrict=$restrict_keyword && break
2646 void foo(char * $restrict_keyword p);
2647 EOF
2648 done
2649
2650 check_cc <<EOF && enable attribute_packed
2651 struct { int x; } __attribute__((packed)) x;
2652 EOF
2653
2654 check_cc <<EOF && enable attribute_may_alias
2655 union { int x; } __attribute__((may_alias)) x;
2656 EOF
2657
2658 check_cc <<EOF || die "endian test failed"
2659 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2660 EOF
2661 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2662
2663 if enabled alpha; then
2664
2665     check_cflags -mieee
2666
2667 elif enabled arm; then
2668
2669     enabled thumb && check_cflags -mthumb || check_cflags -marm
2670     nogas=die
2671
2672     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2673         enable vfp_args
2674     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2675         case "${cross_prefix:-$cc}" in
2676             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2677             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2678 __asm__ (".eabi_attribute 28, 1");
2679 int main(void) { return 0; }
2680 EOF
2681         esac
2682         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2683     fi
2684
2685     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2686     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2687     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2688     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2689     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2690     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2691
2692     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2693
2694     enabled_all armv6t2 shared !pic && enable_pic
2695
2696 elif enabled mips; then
2697
2698     check_asm loongson '"dmult.g $1, $2, $3"'
2699     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2700
2701 elif enabled ppc; then
2702
2703     enable local_aligned_8 local_aligned_16
2704
2705     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2706     check_asm ibm_asm   '"add 0, 0, 0"'
2707     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2708     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2709
2710     # AltiVec flags: The FSF version of GCC differs from the Apple version
2711     if enabled altivec; then
2712         nogas=warn
2713         check_cflags -maltivec -mabi=altivec &&
2714         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2715         check_cflags -faltivec
2716
2717         # check if our compiler supports Motorola AltiVec C API
2718         check_cc <<EOF || disable altivec
2719 $inc_altivec_h
2720 int main(void) {
2721     vector signed int v1, v2, v3;
2722     v1 = vec_add(v2,v3);
2723     return 0;
2724 }
2725 EOF
2726
2727         # check if our compiler supports braces for vector declarations
2728         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2729 $inc_altivec_h
2730 int main (void) { (vector int) {1}; return 0; }
2731 EOF
2732     fi
2733
2734 elif enabled sparc; then
2735
2736     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2737         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2738
2739 elif enabled x86; then
2740
2741     enable local_aligned_8 local_aligned_16
2742
2743     # check whether EBP is available on x86
2744     # As 'i' is stored on the stack, this program will crash
2745     # if the base pointer is used to access it because the
2746     # base pointer is cleared in the inline assembly code.
2747     check_exec_crash <<EOF && enable ebp_available
2748     volatile int i=0;
2749     __asm__ volatile (
2750         "xorl %%ebp, %%ebp"
2751     ::: "%ebp");
2752     return i;
2753 EOF
2754
2755     # check whether EBX is available on x86
2756     check_asm ebx_available '""::"b"(0)' &&
2757         check_asm ebx_available '"":::"%ebx"'
2758
2759     # check whether xmm clobbers are supported
2760     check_asm xmm_clobbers '"":::"%xmm0"'
2761
2762     # check whether binutils is new enough to compile SSSE3/MMX2
2763     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2764     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2765
2766     if ! disabled_any asm mmx yasm; then
2767         if check_cmd $yasmexe --version; then
2768             enabled x86_64 && yasm_extra="-m amd64"
2769             yasm_debug="-g dwarf2"
2770         elif check_cmd nasm -v; then
2771             yasmexe=nasm
2772             yasm_debug="-g -F dwarf"
2773             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2774         fi
2775
2776         YASMFLAGS="-f $objformat $yasm_extra"
2777         enabled pic               && append YASMFLAGS "-DPIC"
2778         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2779         case "$objformat" in
2780             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2781         esac
2782
2783         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2784             die "yasm not found, use --disable-yasm for a crippled build"
2785         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2786     fi
2787
2788     case "$cpu" in
2789         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2790             disable fast_clz
2791         ;;
2792     esac
2793
2794 fi
2795
2796 if enabled asm; then
2797     as=${gas:=$as}
2798     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2799         $nogas "GNU assembler not found, install gas-preprocessor"
2800 fi
2801
2802 check_ldflags -Wl,--as-needed
2803
2804 if check_func dlopen; then
2805     ldl=
2806 elif check_func dlopen -ldl; then
2807     ldl=-ldl
2808 fi
2809
2810 if enabled network; then
2811     check_type "sys/types.h sys/socket.h" socklen_t
2812     check_type netdb.h "struct addrinfo"
2813     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2814     check_type netinet/in.h "struct sockaddr_in6"
2815     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2816     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2817     check_header netinet/sctp.h
2818     # Prefer arpa/inet.h over winsock2
2819     if check_header arpa/inet.h ; then
2820         check_func closesocket
2821     elif check_header winsock2.h ; then
2822         check_func_headers winsock2.h closesocket -lws2 && \
2823             network_extralibs="-lws2" || \
2824         { check_func_headers winsock2.h closesocket -lws2_32 && \
2825             network_extralibs="-lws2_32"; }
2826         check_type ws2tcpip.h socklen_t
2827         check_type ws2tcpip.h "struct addrinfo"
2828         check_type ws2tcpip.h "struct ipv6_mreq"
2829         check_type ws2tcpip.h "struct sockaddr_in6"
2830         check_type ws2tcpip.h "struct sockaddr_storage"
2831         check_struct winsock2.h "struct sockaddr" sa_len
2832     else
2833         disable network
2834     fi
2835 fi
2836
2837 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2838 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2839
2840 check_func  fcntl
2841 check_func  fork
2842 check_func  getaddrinfo $network_extralibs
2843 check_func  gethrtime
2844 check_func  getrusage
2845 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2846 check_func  gettimeofday
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_headers malloc.h _aligned_malloc     && enable aligned_malloc
2855 check_func  setrlimit
2856 check_func  strerror_r
2857 check_func  strptime
2858 check_func  strtok_r
2859 check_func  sched_getaffinity
2860 check_func  sysconf
2861 check_func  sysctl
2862 check_func  usleep
2863 check_func_headers io.h setmode
2864 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2865 check_func_headers windows.h GetProcessAffinityMask
2866 check_func_headers windows.h GetProcessTimes
2867 check_func_headers windows.h GetSystemTimeAsFileTime
2868 check_func_headers windows.h MapViewOfFile
2869 check_func_headers windows.h Sleep
2870 check_func_headers windows.h VirtualAlloc
2871
2872 check_header dlfcn.h
2873 check_header dxva2api.h
2874 check_header malloc.h
2875 check_header poll.h
2876 check_header sys/mman.h
2877 check_header sys/param.h
2878 check_header sys/resource.h
2879 check_header sys/select.h
2880 check_header sys/time.h
2881 check_header unistd.h
2882 check_header vdpau/vdpau.h
2883 check_header vdpau/vdpau_x11.h
2884 check_header windows.h
2885 check_header X11/extensions/XvMClib.h
2886
2887 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2888 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2889
2890 if ! disabled w32threads && ! enabled pthreads; then
2891     check_func _beginthreadex && enable w32threads
2892 fi
2893
2894 # check for some common methods of building with pthread support
2895 # do this before the optional library checks as some of them require pthreads
2896 if ! disabled pthreads && ! enabled w32threads; then
2897     enable pthreads
2898     if check_func pthread_create; then
2899         :
2900     elif check_func pthread_create -pthread; then
2901         add_cflags -pthread
2902         add_extralibs -pthread
2903     elif check_func pthread_create -pthreads; then
2904         add_cflags -pthreads
2905         add_extralibs -pthreads
2906     elif check_func pthread_create -lpthreadGC2; then
2907         add_extralibs -lpthreadGC2
2908     elif ! check_lib pthread.h pthread_create -lpthread; then
2909         disable pthreads
2910     fi
2911 fi
2912
2913 for thread in $THREADS_LIST; do
2914     if enabled $thread; then
2915         test -n "$thread_type" &&
2916             die "ERROR: Only one thread type must be selected." ||
2917             thread_type="$thread"
2918     fi
2919 done
2920
2921 check_lib math.h sin -lm && LIBM="-lm"
2922 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2923
2924 check_mathfunc cbrtf
2925 check_mathfunc exp2
2926 check_mathfunc exp2f
2927 check_mathfunc isinf
2928 check_mathfunc isnan
2929 check_mathfunc llrint
2930 check_mathfunc llrintf
2931 check_mathfunc log2
2932 check_mathfunc log2f
2933 check_mathfunc lrint
2934 check_mathfunc lrintf
2935 check_mathfunc round
2936 check_mathfunc roundf
2937 check_mathfunc trunc
2938 check_mathfunc truncf
2939
2940 # these are off by default, so fail if requested and not available
2941 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2942 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2943 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2944 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2945 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2946 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2947 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
2948 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2949 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2950 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2951 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2952 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2953 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2954 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2955 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2956 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2957 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2958 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2959 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2960 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2961 enabled libvpx     && {
2962     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2963                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2964     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2965                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2966 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2967                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2968                         die "ERROR: libx264 version must be >= 0.118."; }
2969 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2970 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2971 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2972                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2973                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2974                         die "ERROR: openssl not found"; }
2975
2976 # libdc1394 check
2977 if enabled libdc1394; then
2978     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2979         enable libdc1394_2; } ||
2980     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2981         enable libdc1394_1; } ||
2982     die "ERROR: No version of libdc1394 found "
2983 fi
2984
2985 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
2986     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2987     enable sdl &&
2988     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2989 fi
2990
2991 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2992
2993 check_header linux/fb.h
2994 check_header linux/videodev2.h
2995 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2996
2997 check_header sys/videoio.h
2998
2999 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3000 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3001 # w32api 3.12 had it defined wrong
3002 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3003
3004 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3005 { check_header dev/bktr/ioctl_meteor.h &&
3006   check_header dev/bktr/ioctl_bt848.h; } ||
3007 { check_header machine/ioctl_meteor.h &&
3008   check_header machine/ioctl_bt848.h; } ||
3009 { check_header dev/video/meteor/ioctl_meteor.h &&
3010   check_header dev/video/bktr/ioctl_bt848.h; } ||
3011 check_header dev/ic/bt8xx.h
3012
3013 check_header sndio.h
3014 check_header sys/soundcard.h
3015 check_header soundcard.h
3016
3017 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3018
3019 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3020     check_func jack_port_get_latency_range -ljack
3021
3022 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3023
3024 enabled libcdio &&
3025     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3026
3027 enabled x11grab                                           &&
3028 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3029 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3030 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3031
3032 # check for VDA header
3033 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3034     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3035 fi
3036
3037 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3038 check_cpp_condition \
3039     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3040     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3041       disable vdpau; }
3042 fi
3043
3044 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3045
3046 # add some useful compiler flags if supported
3047 check_cflags -Wdeclaration-after-statement
3048 check_cflags -Wall
3049 check_cflags -Wno-parentheses
3050 check_cflags -Wno-switch
3051 check_cflags -Wno-format-zero-length
3052 check_cflags -Wdisabled-optimization
3053 check_cflags -Wpointer-arith
3054 check_cflags -Wredundant-decls
3055 check_cflags -Wno-pointer-sign
3056 check_cflags -Wcast-qual
3057 check_cflags -Wwrite-strings
3058 check_cflags -Wtype-limits
3059 check_cflags -Wundef
3060 check_cflags -Wmissing-prototypes
3061 check_cflags -Wstrict-prototypes
3062 enabled extra_warnings && check_cflags -Winline
3063
3064 # add some linker flags
3065 check_ldflags -Wl,--warn-common
3066 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3067 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3068
3069 enabled xmm_clobber_test &&                             \
3070     check_ldflags -Wl,--wrap,avcodec_open2              \
3071                   -Wl,--wrap,avcodec_decode_audio4      \
3072                   -Wl,--wrap,avcodec_decode_video2      \
3073                   -Wl,--wrap,avcodec_decode_subtitle2   \
3074                   -Wl,--wrap,avcodec_encode_audio2      \
3075                   -Wl,--wrap,avcodec_encode_video       \
3076                   -Wl,--wrap,avcodec_encode_subtitle    \
3077                   -Wl,--wrap,sws_scale ||               \
3078     disable xmm_clobber_test
3079
3080 echo "X{};" > $TMPV
3081 if test_ldflags -Wl,--version-script,$TMPV; then
3082     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3083     check_cc <<EOF && enable symver_asm_label
3084 void ff_foo(void) __asm__ ("av_foo@VERSION");
3085 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3086 EOF
3087     check_cc <<EOF && enable symver_gnu_asm
3088 __asm__(".symver ff_foo,av_foo@VERSION");
3089 void ff_foo(void) {}
3090 EOF
3091 fi
3092
3093 if [ -n "$optflags" ]; then
3094     add_cflags $optflags
3095 elif enabled small; then
3096     add_cflags $size_cflags
3097 elif enabled optimizations; then
3098     add_cflags $speed_cflags
3099 else
3100     add_cflags $noopt_cflags
3101 fi
3102 check_cflags -fno-math-errno
3103 check_cflags -fno-signed-zeros
3104
3105 if enabled icc; then
3106     # Just warnings, no remarks
3107     check_cflags -w1
3108     # -wd: Disable following warnings
3109     # 144, 167, 556: -Wno-pointer-sign
3110     # 1292: attribute "foo" ignored
3111     # 1419: external declaration in primary source file
3112     # 10006: ignoring unknown option -fno-signed-zeros
3113     # 10148: ignoring unknown option -Wno-parentheses
3114     # 10156: ignoring option '-W'; no argument required
3115     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3116     # 11030: Warning unknown option --as-needed
3117     # 10156: ignoring option '-export'; no argument required
3118     check_ldflags -wd10156,11030
3119     # Allow to compile with optimizations
3120     check_ldflags -march=$cpu
3121     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3122     enable ebp_available
3123     if enabled x86_32; then
3124         test ${icc_version%%.*} -ge 11 && \
3125             check_cflags -falign-stack=maintain-16-byte || \
3126             disable aligned_stack
3127     fi
3128 elif enabled ccc; then
3129     # disable some annoying warnings
3130     add_cflags -msg_disable cvtu32to64
3131     add_cflags -msg_disable embedcomment
3132     add_cflags -msg_disable needconstext
3133     add_cflags -msg_disable nomainieee
3134     add_cflags -msg_disable ptrmismatch1
3135     add_cflags -msg_disable unreachcode
3136 elif enabled gcc; then
3137     check_cflags -fno-tree-vectorize
3138     check_cflags -Werror=implicit-function-declaration
3139     check_cflags -Werror=missing-prototypes
3140     check_cflags -Werror=declaration-after-statement
3141 elif enabled llvm_gcc; then
3142     check_cflags -mllvm -stack-alignment=16
3143 elif enabled clang; then
3144     check_cflags -mllvm -stack-alignment=16
3145     check_cflags -Qunused-arguments
3146 elif enabled armcc; then
3147     # 2523: use of inline assembler is deprecated
3148     add_cflags -W${armcc_opt},--diag_suppress=2523
3149     add_cflags -W${armcc_opt},--diag_suppress=1207
3150     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3151     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3152     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3153     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3154 elif enabled tms470; then
3155     add_cflags -pds=824 -pds=837
3156 elif enabled pathscale; then
3157     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3158 fi
3159
3160 enabled_any $THREADS_LIST      && enable threads
3161
3162 check_deps $CONFIG_LIST       \
3163            $CONFIG_EXTRA      \
3164            $HAVE_LIST         \
3165            $ALL_COMPONENTS    \
3166            $ALL_TESTS         \
3167
3168 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3169
3170 ! enabled_any memalign posix_memalign aligned_malloc &&
3171     enabled_any $need_memalign && enable memalign_hack
3172
3173 echo "install prefix            $prefix"
3174 echo "source path               $source_path"
3175 echo "C compiler                $cc"
3176 echo "ARCH                      $arch ($cpu)"
3177 if test "$build_suffix" != ""; then
3178     echo "build suffix              $build_suffix"
3179 fi
3180 if test "$extra_version" != ""; then
3181     echo "version string suffix     $extra_version"
3182 fi
3183 echo "big-endian                ${bigendian-no}"
3184 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3185 if enabled x86; then
3186     echo "${yasmexe}                      ${yasm-no}"
3187     echo "MMX enabled               ${mmx-no}"
3188     echo "MMX2 enabled              ${mmx2-no}"
3189     echo "3DNow! enabled            ${amd3dnow-no}"
3190     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3191     echo "SSE enabled               ${sse-no}"
3192     echo "SSSE3 enabled             ${ssse3-no}"
3193     echo "AVX enabled               ${avx-no}"
3194     echo "CMOV enabled              ${cmov-no}"
3195     echo "CMOV is fast              ${fast_cmov-no}"
3196     echo "EBX available             ${ebx_available-no}"
3197     echo "EBP available             ${ebp_available-no}"
3198 fi
3199 if enabled arm; then
3200     echo "ARMv5TE enabled           ${armv5te-no}"
3201     echo "ARMv6 enabled             ${armv6-no}"
3202     echo "ARMv6T2 enabled           ${armv6t2-no}"
3203     echo "ARM VFP enabled           ${armvfp-no}"
3204     echo "NEON enabled              ${neon-no}"
3205 fi
3206 if enabled mips; then
3207     echo "MMI enabled               ${mmi-no}"
3208 fi
3209 if enabled ppc; then
3210     echo "AltiVec enabled           ${altivec-no}"
3211     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3212     echo "dcbzl available           ${dcbzl-no}"
3213 fi
3214 if enabled sparc; then
3215     echo "VIS enabled               ${vis-no}"
3216 fi
3217 echo "debug symbols             ${debug-no}"
3218 echo "optimize for size         ${small-no}"
3219 echo "optimizations             ${optimizations-no}"
3220 echo "static                    ${static-no}"
3221 echo "shared                    ${shared-no}"
3222 echo "new filter support        ${avfilter-no}"
3223 echo "network support           ${network-no}"
3224 echo "threading support         ${thread_type-no}"
3225 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3226 echo "SDL support               ${sdl-no}"
3227 echo "libdxva2 enabled          ${dxva2-no}"
3228 echo "libva enabled             ${vaapi-no}"
3229 echo "libvdpau enabled          ${vdpau-no}"
3230 echo "AVISynth enabled          ${avisynth-no}"
3231 echo "frei0r enabled            ${frei0r-no}"
3232 echo "gnutls enabled            ${gnutls-no}"
3233 echo "libcdio support           ${libcdio-no}"
3234 echo "libdc1394 support         ${libdc1394-no}"
3235 echo "libfaac enabled           ${libfaac-no}"
3236 echo "libgsm enabled            ${libgsm-no}"
3237 echo "libilbc enabled           ${libilbc-no}"
3238 echo "libmp3lame enabled        ${libmp3lame-no}"
3239 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3240 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3241 echo "libopencv support         ${libopencv-no}"
3242 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3243 echo "libpulse enabled          ${libpulse-no}"
3244 echo "librtmp enabled           ${librtmp-no}"
3245 echo "libschroedinger enabled   ${libschroedinger-no}"
3246 echo "libspeex enabled          ${libspeex-no}"
3247 echo "libtheora enabled         ${libtheora-no}"
3248 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3249 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3250 echo "libvorbis enabled         ${libvorbis-no}"
3251 echo "libvpx enabled            ${libvpx-no}"
3252 echo "libx264 enabled           ${libx264-no}"
3253 echo "libxavs enabled           ${libxavs-no}"
3254 echo "libxvid enabled           ${libxvid-no}"
3255 echo "openssl enabled           ${openssl-no}"
3256 echo "zlib enabled              ${zlib-no}"
3257 echo "bzlib enabled             ${bzlib-no}"
3258 echo
3259
3260 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3261     echo "Enabled ${type}s:"
3262     eval list=\$$(toupper $type)_LIST
3263     print_enabled '_*' $list | sort | pr -r -3 -t
3264     echo
3265 done
3266
3267 license="LGPL version 2.1 or later"
3268 if enabled nonfree; then
3269     license="nonfree and unredistributable"
3270 elif enabled gplv3; then
3271     license="GPL version 3 or later"
3272 elif enabled lgplv3; then
3273     license="LGPL version 3 or later"
3274 elif enabled gpl; then
3275     license="GPL version 2 or later"
3276 fi
3277
3278 echo "License: $license"
3279
3280 echo "Creating config.mak and config.h..."
3281
3282 test -e Makefile || $ln_s "$source_path/Makefile" .
3283
3284 config_files="$TMPH config.mak"
3285
3286 cat > config.mak <<EOF
3287 # Automatically generated by configure - do not modify!
3288 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3289 prefix=$prefix
3290 LIBDIR=\$(DESTDIR)$libdir
3291 SHLIBDIR=\$(DESTDIR)$shlibdir
3292 INCDIR=\$(DESTDIR)$incdir
3293 BINDIR=\$(DESTDIR)$bindir
3294 DATADIR=\$(DESTDIR)$datadir
3295 MANDIR=\$(DESTDIR)$mandir
3296 SRC_PATH=$source_path
3297 CC_IDENT=$cc_ident
3298 ARCH=$arch
3299 CC=$cc
3300 AS=$as
3301 LD=$ld
3302 DEPCC=$dep_cc
3303 YASM=$yasmexe
3304 YASMDEP=$yasmexe
3305 AR=$ar
3306 RANLIB=$ranlib
3307 LN_S=$ln_s
3308 CPPFLAGS=$CPPFLAGS
3309 CFLAGS=$CFLAGS
3310 ASFLAGS=$ASFLAGS
3311 AS_O=$CC_O
3312 CC_O=$CC_O
3313 DLLTOOL=$dlltool
3314 LDFLAGS=$LDFLAGS
3315 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3316 SHFLAGS=$SHFLAGS
3317 YASMFLAGS=$YASMFLAGS
3318 BUILDSUF=$build_suffix
3319 FULLNAME=$FULLNAME
3320 LIBPREF=$LIBPREF
3321 LIBSUF=$LIBSUF
3322 LIBNAME=$LIBNAME
3323 SLIBPREF=$SLIBPREF
3324 SLIBSUF=$SLIBSUF
3325 EXESUF=$EXESUF
3326 EXTRA_VERSION=$extra_version
3327 DEPFLAGS=$DEPFLAGS
3328 CCDEP=$CCDEP
3329 ASDEP=$ASDEP
3330 CC_DEPFLAGS=$CC_DEPFLAGS
3331 AS_DEPFLAGS=$AS_DEPFLAGS
3332 HOSTCC=$host_cc
3333 HOSTCFLAGS=$host_cflags
3334 HOSTEXESUF=$HOSTEXESUF
3335 HOSTLDFLAGS=$host_ldflags
3336 HOSTLIBS=$host_libs
3337 TARGET_EXEC=$target_exec
3338 TARGET_PATH=$target_path
3339 SDL_LIBS=$sdl_libs
3340 SDL_CFLAGS=$sdl_cflags
3341 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3342 EXTRALIBS=$extralibs
3343 INSTALL=install
3344 LIBTARGET=${LIBTARGET}
3345 SLIBNAME=${SLIBNAME}
3346 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3347 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3348 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3349 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3350 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3351 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3352 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3353 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3354 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
3355 EOF
3356
3357 get_version(){
3358     name=$1
3359     file=$source_path/$2
3360     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3361     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3362     lcname=$(tolower $name)
3363     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3364     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3365 }
3366
3367 get_version LIBAVCODEC  libavcodec/version.h
3368 get_version LIBAVDEVICE libavdevice/avdevice.h
3369 get_version LIBAVFILTER libavfilter/version.h
3370 get_version LIBAVFORMAT libavformat/version.h
3371 get_version LIBAVRESAMPLE libavresample/version.h
3372 get_version LIBAVUTIL   libavutil/avutil.h
3373 get_version LIBSWSCALE  libswscale/swscale.h
3374
3375 cat > $TMPH <<EOF
3376 /* Automatically generated by configure - do not modify! */
3377 #ifndef LIBAV_CONFIG_H
3378 #define LIBAV_CONFIG_H
3379 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3380 #define LIBAV_LICENSE "$(c_escape $license)"
3381 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3382 #define CC_TYPE "$cc_type"
3383 #define CC_VERSION $cc_version
3384 #define restrict $_restrict
3385 #define EXTERN_PREFIX "${extern_prefix}"
3386 #define EXTERN_ASM ${extern_prefix}
3387 #define SLIBSUF "$SLIBSUF"
3388 EOF
3389
3390 test -n "$malloc_prefix" &&
3391     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3392
3393 if enabled small || disabled optimizations; then
3394     echo "#undef  av_always_inline"  >> $TMPH
3395     if enabled small; then
3396         echo "#define av_always_inline inline"  >> $TMPH
3397     else
3398         echo "#define av_always_inline av_unused"  >> $TMPH
3399     fi
3400 fi
3401
3402 if enabled yasm; then
3403     append config_files $TMPASM
3404     printf '' >$TMPASM
3405 fi
3406
3407 print_config ARCH_   "$config_files" $ARCH_LIST
3408 print_config HAVE_   "$config_files" $HAVE_LIST
3409 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3410                                      $CONFIG_EXTRA      \
3411                                      $ALL_COMPONENTS    \
3412
3413 cat >>config.mak <<EOF
3414 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3415 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3416 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3417 EOF
3418
3419 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3420
3421 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3422 cp_if_changed $TMPH config.h
3423 touch .config
3424
3425 enabled yasm && cp_if_changed $TMPASM config.asm
3426
3427 cat > $TMPH <<EOF
3428 /* Generated by ffconf */
3429 #ifndef AVUTIL_AVCONFIG_H
3430 #define AVUTIL_AVCONFIG_H
3431 EOF
3432
3433 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3434
3435 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3436
3437 cp_if_changed $TMPH libavutil/avconfig.h
3438
3439 test -n "$WARNINGS" && printf "\n$WARNINGS"
3440
3441 # build pkg-config files
3442
3443 pkgconfig_generate(){
3444 name=$1
3445 shortname=${name#lib}${build_suffix}
3446 comment=$2
3447 version=$3
3448 libs=$4
3449 requires=$5
3450 enabled ${name#lib} || return 0
3451 mkdir -p $name
3452 cat <<EOF > $name/$name.pc
3453 prefix=$prefix
3454 exec_prefix=\${prefix}
3455 libdir=$libdir
3456 includedir=$incdir
3457
3458 Name: $name
3459 Description: $comment
3460 Version: $version
3461 Requires: $(enabled shared || echo $requires)
3462 Requires.private: $(enabled shared && echo $requires)
3463 Conflicts:
3464 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3465 Libs.private: $(enabled shared && echo $libs)
3466 Cflags: -I\${includedir}
3467 EOF
3468 cat <<EOF > $name/$name-uninstalled.pc
3469 prefix=
3470 exec_prefix=
3471 libdir=\${pcfiledir}
3472 includedir=${source_path}
3473
3474 Name: $name
3475 Description: $comment
3476 Version: $version
3477 Requires: $requires
3478 Conflicts:
3479 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3480 Cflags: -I\${includedir}
3481 EOF
3482 }
3483
3484 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3485 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3486 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3487 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3488 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3489 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
3490 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"