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

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