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 Help options:
  63   --help                   print this message
  64   --list-decoders          show all available decoders
  65   --list-encoders          show all available encoders
  66   --list-hwaccels          show all available hardware accelerators
  67   --list-demuxers          show all available demuxers
  68   --list-muxers            show all available muxers
  69   --list-parsers           show all available parsers
  70   --list-protocols         show all available protocols
  71   --list-bsfs              show all available bitstream filters
  72   --list-indevs            show all available input devices
  73   --list-outdevs           show all available output devices
  74   --list-filters           show all available filters
  75
  76 Standard options:
  77   --logfile=FILE           log tests and output to FILE [config.log]
  78   --disable-logging        do not log configure debug information
  79   --prefix=PREFIX          install in PREFIX [$prefix]
  80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  81   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  82   --libdir=DIR             install libs in DIR [PREFIX/lib]
  83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  84   --incdir=DIR             install includes in DIR [PREFIX/include]
  85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  86
  87 Licensing options:
  88   --enable-gpl             allow use of GPL code, the resulting libs
  89                            and binaries will be under GPL [no]
  90   --enable-version3        upgrade (L)GPL to version 3 [no]
  91   --enable-nonfree         allow use of nonfree code, the resulting libs
  92                            and binaries will be unredistributable [no]
  93
  94 Configuration options:
  95   --disable-static         do not build static libraries [no]
  96   --enable-shared          build shared libraries [no]
  97   --enable-small           optimize for size instead of speed
  98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101
 102 Component options:
 103   --disable-doc            do not build documentation
 104   --disable-avconv         disable avconv build
 105   --disable-avplay         disable avplay build
 106   --disable-avprobe        disable avprobe build
 107   --disable-avserver       disable avserver build
 108   --disable-avdevice       disable libavdevice build
 109   --disable-avcodec        disable libavcodec build
 110   --disable-avformat       disable libavformat build
 111   --disable-swscale        disable libswscale build
 112   --disable-avfilter       disable video filter support [no]
 113   --disable-avresample     disable libavresample build [no]
 114   --disable-pthreads       disable pthreads [auto]
 115   --disable-w32threads     disable Win32 threads [auto]
 116   --enable-x11grab         enable X11 grabbing [no]
 117   --disable-network        disable network support [no]
 118   --disable-dct            disable DCT code
 119   --disable-mdct           disable MDCT code
 120   --disable-rdft           disable RDFT code
 121   --disable-fft            disable FFT code
 122   --enable-dxva2           enable DXVA2 code
 123   --enable-vaapi           enable VAAPI code
 124   --enable-vda             enable VDA code
 125   --enable-vdpau           enable VDPAU code
 126
 127 Individual component options:
 128   --disable-everything     disable all components listed below
 129   --disable-encoder=NAME   disable encoder NAME
 130   --enable-encoder=NAME    enable encoder NAME
 131   --disable-encoders       disable all encoders
 132   --disable-decoder=NAME   disable decoder NAME
 133   --enable-decoder=NAME    enable decoder NAME
 134   --disable-decoders       disable all decoders
 135   --disable-hwaccel=NAME   disable hwaccel NAME
 136   --enable-hwaccel=NAME    enable hwaccel NAME
 137   --disable-hwaccels       disable all hwaccels
 138   --disable-muxer=NAME     disable muxer NAME
 139   --enable-muxer=NAME      enable muxer NAME
 140   --disable-muxers         disable all muxers
 141   --disable-demuxer=NAME   disable demuxer NAME
 142   --enable-demuxer=NAME    enable demuxer NAME
 143   --disable-demuxers       disable all demuxers
 144   --enable-parser=NAME     enable parser NAME
 145   --disable-parser=NAME    disable parser NAME
 146   --disable-parsers        disable all parsers
 147   --enable-bsf=NAME        enable bitstream filter NAME
 148   --disable-bsf=NAME       disable bitstream filter NAME
 149   --disable-bsfs           disable all bitstream filters
 150   --enable-protocol=NAME   enable protocol NAME
 151   --disable-protocol=NAME  disable protocol NAME
 152   --disable-protocols      disable all protocols
 153   --enable-indev=NAME      enable input device NAME
 154   --disable-indev=NAME     disable input device NAME
 155   --disable-indevs         disable input devices
 156   --enable-outdev=NAME     enable output device NAME
 157   --disable-outdev=NAME    disable output device NAME
 158   --disable-outdevs        disable output devices
 159   --disable-devices        disable all devices
 160   --enable-filter=NAME     enable filter NAME
 161   --disable-filter=NAME    disable filter NAME
 162   --disable-filters        disable all filters
 163
 164 External library support:
 165   --enable-avisynth        enable reading of AVISynth script files [no]
 166   --enable-bzlib           enable bzlib [autodetect]
 167   --enable-frei0r          enable frei0r video filtering
 168   --enable-gnutls          enable gnutls [no]
 169   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 170   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 171   --enable-libopencv       enable video filtering via libopencv [no]
 172   --enable-libcdio         enable audio CD grabbing with libcdio
 173   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 174                            and libraw1394 [no]
 175   --enable-libfaac         enable FAAC support via libfaac [no]
 176   --enable-libfreetype     enable libfreetype [no]
 177   --enable-libgsm          enable GSM support via libgsm [no]
 178   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 179   --enable-libnut          enable NUT (de)muxing via libnut,
 180                            native (de)muxer exists [no]
 181   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 182   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 183   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 184   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 185   --enable-libspeex        enable Speex support via libspeex [no]
 186   --enable-libtheora       enable Theora encoding via libtheora [no]
 187   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 188   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 189   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 190                            native implementation exists [no]
 191   --enable-libvpx          enable VP8 support via libvpx [no]
 192   --enable-libx264         enable H.264 encoding via x264 [no]
 193   --enable-libxavs         enable AVS encoding via xavs [no]
 194   --enable-libxvid         enable Xvid encoding via xvidcore,
 195                            native MPEG-4/Xvid encoder exists [no]
 196   --enable-openssl         enable openssl [no]
 197   --enable-zlib            enable zlib [autodetect]
 198
 199 Advanced options (experts only):
 200   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 201   --enable-cross-compile   assume a cross-compiler is used
 202   --sysroot=PATH           root of cross-build tree
 203   --sysinclude=PATH        location of cross-build system headers
 204   --target-os=OS           compiler targets OS [$target_os]
 205   --target-exec=CMD        command to run executables on target
 206   --target-path=DIR        path to view of build directory on target
 207   --nm=NM                  use nm tool
 208   --ar=AR                  use archive tool AR [$ar_default]
 209   --as=AS                  use assembler AS [$as_default]
 210   --cc=CC                  use C compiler CC [$cc_default]
 211   --ld=LD                  use linker LD
 212   --host-cc=HOSTCC         use host C compiler HOSTCC
 213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 215   --host-libs=HLIBS        use libs HLIBS when linking for host
 216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 217   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 218   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 219   --extra-version=STRING   version string suffix []
 220   --optflags               override optimization-related compiler flags
 221   --build-suffix=SUFFIX    library name suffix []
 222   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 223   --arch=ARCH              select architecture [$arch]
 224   --cpu=CPU                select the minimum required CPU (affects
 225                            instruction selection, may crash on older CPUs)
 226   --enable-pic             build position-independent code
 227   --enable-sram            allow use of on-chip SRAM
 228   --disable-symver         disable symbol versioning
 229   --disable-fastdiv        disable table-based division
 230   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 231   --disable-safe-bitstream-reader
 232                            disable buffer boundary checking in bitreaders
 233                            (faster, but may crash)
 234   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 235
 236 Optimization options (experts only):
 237   --disable-asm            disable all assembler optimizations
 238   --disable-altivec        disable AltiVec optimizations
 239   --disable-amd3dnow       disable 3DNow! optimizations
 240   --disable-amd3dnowext    disable 3DNow! extended optimizations
 241   --disable-mmx            disable MMX optimizations
 242   --disable-mmx2           disable MMX2 optimizations
 243   --disable-sse            disable SSE optimizations
 244   --disable-ssse3          disable SSSE3 optimizations
 245   --disable-avx            disable AVX optimizations
 246   --disable-armv5te        disable armv5te optimizations
 247   --disable-armv6          disable armv6 optimizations
 248   --disable-armv6t2        disable armv6t2 optimizations
 249   --disable-armvfp         disable ARM VFP optimizations
 250   --disable-mmi            disable MMI optimizations
 251   --disable-neon           disable NEON optimizations
 252   --disable-vis            disable VIS optimizations
 253   --disable-yasm           disable use of yasm assembler
 254
 255 Developer options (useful when working on Libav itself):
 256   --disable-debug          disable debugging symbols
 257   --enable-debug=LEVEL     set the debug level [$debuglevel]
 258   --disable-optimizations  disable compiler optimizations
 259   --enable-extra-warnings  enable more compiler warnings
 260   --samples=PATH           location of test samples for FATE, if not set use
 261                            \$FATE_SAMPLES at make invocation time.
 262   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 263                            should be used only for debugging purposes)
 264
 265 NOTE: Object files are built at the place where configure is launched.
 266 EOF
 267   exit 0
 268 }
 269
 270 quotes='""'
 271
 272 log(){
 273     echo "$@" >> $logfile
 274 }
 275
 276 log_file(){
 277     log BEGIN $1
 278     pr -n -t $1 >> $logfile
 279     log END $1
 280 }
 281
 282 echolog(){
 283     log "$@"
 284     echo "$@"
 285 }
 286
 287 warn(){
 288     log "WARNING: $*"
 289     WARNINGS="${WARNINGS}WARNING: $*\n"
 290 }
 291
 292 die(){
 293     echolog "$@"
 294     cat <<EOF
 295
 296 If you think configure made a mistake, make sure you are using the latest
 297 version from Git.  If the latest version fails, report the problem to the
 298 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 299 EOF
 300     if disabled logging; then
 301         cat <<EOF
 302 Rerun configure with logging enabled (do not use --disable-logging), and
 303 include the log this produces with your report.
 304 EOF
 305     else
 306 cat <<EOF
 307 Include the log file "$logfile" produced by configure as this will help
 308 solving the problem.
 309 EOF
 310     fi
 311     exit 1
 312 }
 313
 314 # Avoid locale weirdness, besides we really just want to translate ASCII.
 315 toupper(){
 316     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 317 }
 318
 319 tolower(){
 320     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 321 }
 322
 323 c_escape(){
 324     echo "$*" | sed 's/["\\]/\\\0/g'
 325 }
 326
 327 sh_quote(){
 328     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 329     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 330     echo "$v"
 331 }
 332
 333 cleanws(){
 334     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 335 }
 336
 337 filter(){
 338     pat=$1
 339     shift
 340     for v; do
 341         eval "case $v in $pat) echo $v ;; esac"
 342     done
 343 }
 344
 345 filter_out(){
 346     pat=$1
 347     shift
 348     for v; do
 349         eval "case $v in $pat) ;; *) echo $v ;; esac"
 350     done
 351 }
 352
 353 map(){
 354     m=$1
 355     shift
 356     for v; do eval $m; done
 357 }
 358
 359 set_all(){
 360     value=$1
 361     shift
 362     for var in $*; do
 363         eval $var=$value
 364     done
 365 }
 366
 367 set_weak(){
 368     value=$1
 369     shift
 370     for var; do
 371         eval : \${$var:=$value}
 372     done
 373 }
 374
 375 set_safe(){
 376     var=$1
 377     shift
 378     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 379 }
 380
 381 get_safe(){
 382     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 383 }
 384
 385 pushvar(){
 386     for var in $*; do
 387         eval level=\${${var}_level:=0}
 388         eval ${var}_${level}="\$$var"
 389         eval ${var}_level=$(($level+1))
 390     done
 391 }
 392
 393 popvar(){
 394     for var in $*; do
 395         eval level=\${${var}_level:-0}
 396         test $level = 0 && continue
 397         eval level=$(($level-1))
 398         eval $var="\${${var}_${level}}"
 399         eval ${var}_level=$level
 400         eval unset ${var}_${level}
 401     done
 402 }
 403
 404 enable(){
 405     set_all yes $*
 406 }
 407
 408 disable(){
 409     set_all no $*
 410 }
 411
 412 enable_weak(){
 413     set_weak yes $*
 414 }
 415
 416 disable_weak(){
 417     set_weak no $*
 418 }
 419
 420 enable_safe(){
 421     for var; do
 422         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 423     done
 424 }
 425
 426 disable_safe(){
 427     for var; do
 428         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 429     done
 430 }
 431
 432 do_enable_deep(){
 433     for var; do
 434         enabled $var && continue
 435         eval sel="\$${var}_select"
 436         eval sgs="\$${var}_suggest"
 437         pushvar var sgs
 438         enable_deep $sel
 439         popvar sgs
 440         enable_deep_weak $sgs
 441         popvar var
 442     done
 443 }
 444
 445 enable_deep(){
 446     do_enable_deep $*
 447     enable $*
 448 }
 449
 450 enable_deep_weak(){
 451     do_enable_deep $*
 452     enable_weak $*
 453 }
 454
 455 enabled(){
 456     test "${1#!}" = "$1" && op== || op=!=
 457     eval test "x\$${1#!}" $op "xyes"
 458 }
 459
 460 disabled(){
 461     test "${1#!}" = "$1" && op== || op=!=
 462     eval test "x\$${1#!}" $op "xno"
 463 }
 464
 465 enabled_all(){
 466     for opt; do
 467         enabled $opt || return 1
 468     done
 469 }
 470
 471 disabled_all(){
 472     for opt; do
 473         disabled $opt || return 1
 474     done
 475 }
 476
 477 enabled_any(){
 478     for opt; do
 479         enabled $opt && return 0
 480     done
 481 }
 482
 483 disabled_any(){
 484     for opt; do
 485         disabled $opt && return 0
 486     done
 487     return 1
 488 }
 489
 490 set_default(){
 491     for opt; do
 492         eval : \${$opt:=\$${opt}_default}
 493     done
 494 }
 495
 496 is_in(){
 497     value=$1
 498     shift
 499     for var in $*; do
 500         [ $var = $value ] && return 0
 501     done
 502     return 1
 503 }
 504
 505 check_deps(){
 506     for cfg; do
 507         cfg="${cfg#!}"
 508         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 509         disabled ${cfg}_checking && continue
 510         enable ${cfg}_checking
 511
 512         eval dep_all="\$${cfg}_deps"
 513         eval dep_any="\$${cfg}_deps_any"
 514         eval dep_sel="\$${cfg}_select"
 515         eval dep_sgs="\$${cfg}_suggest"
 516         eval dep_ifa="\$${cfg}_if"
 517         eval dep_ifn="\$${cfg}_if_any"
 518
 519         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 520         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 521         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 522
 523         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 524         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 525         enabled_all  $dep_all || disable $cfg
 526         enabled_any  $dep_any || disable $cfg
 527         disabled_any $dep_sel && disable $cfg
 528
 529         if enabled $cfg; then
 530             eval dep_extralibs="\$${cfg}_extralibs"
 531             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 532             enable_deep $dep_sel
 533             enable_deep_weak $dep_sgs
 534         fi
 535
 536         disable ${cfg}_checking
 537     done
 538 }
 539
 540 print_config_h(){
 541     enabled $1 && v=1 || v=0
 542     echo "#define $2 $v"
 543 }
 544
 545 print_config_mak(){
 546     enabled $1 && v= || v=!
 547     echo "$v$2=yes"
 548 }
 549
 550 print_config_asm(){
 551     enabled $1 && v=1 || v=0
 552     echo "%define $2 $v"
 553 }
 554
 555 print_config(){
 556     pfx=$1
 557     files=$2
 558     shift 2
 559     for cfg; do
 560         ucname="$(toupper $cfg)"
 561         for f in $files; do
 562             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 563         done
 564     done
 565 }
 566
 567 print_enabled(){
 568     test "$1" = -n && end=" " && shift || end="\n"
 569     suf=$1
 570     shift
 571     for v; do
 572         enabled $v && printf "%s$end" ${v%$suf};
 573     done
 574 }
 575
 576 append(){
 577     var=$1
 578     shift
 579     eval "$var=\"\$$var $*\""
 580 }
 581
 582 prepend(){
 583     var=$1
 584     shift
 585     eval "$var=\"$* \$$var\""
 586 }
 587
 588 add_cppflags(){
 589     append CPPFLAGS $($filter_cppflags "$@")
 590 }
 591
 592 add_cflags(){
 593     append CFLAGS $($filter_cflags "$@")
 594 }
 595
 596 add_asflags(){
 597     append ASFLAGS $($filter_asflags "$@")
 598 }
 599
 600 add_ldflags(){
 601     append LDFLAGS "$@"
 602 }
 603
 604 add_extralibs(){
 605     prepend extralibs "$@"
 606 }
 607
 608 check_cmd(){
 609     log "$@"
 610     "$@" >> $logfile 2>&1
 611 }
 612
 613 check_cc(){
 614     log check_cc "$@"
 615     cat > $TMPC
 616     log_file $TMPC
 617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 618 }
 619
 620 check_cpp(){
 621     log check_cpp "$@"
 622     cat > $TMPC
 623     log_file $TMPC
 624     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 625 }
 626
 627 check_as(){
 628     log check_as "$@"
 629     cat > $TMPC
 630     log_file $TMPC
 631     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 632 }
 633
 634 check_asm(){
 635     log check_asm "$@"
 636     name="$1"
 637     code="$2"
 638     shift 2
 639     disable $name
 640     check_as "$@" <<EOF && enable $name
 641 void foo(void){ __asm__ volatile($code); }
 642 EOF
 643 }
 644
 645 check_yasm(){
 646     log check_yasm "$@"
 647     echo "$1" > $TMPS
 648     log_file $TMPS
 649     shift 1
 650     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 651 }
 652
 653 check_ld(){
 654     log check_ld "$@"
 655     flags=''
 656     libs=''
 657     for f; do
 658         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 659     done
 660     check_cc $($filter_cflags $flags) || return
 661     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 662 }
 663
 664 check_cppflags(){
 665     log check_cppflags "$@"
 666     set -- $($filter_cppflags "$@")
 667     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 668 int x;
 669 EOF
 670 }
 671
 672 check_cflags(){
 673     log check_cflags "$@"
 674     set -- $($filter_cflags "$@")
 675     check_cc "$@" <<EOF && append CFLAGS "$@"
 676 int x;
 677 EOF
 678 }
 679
 680 test_ldflags(){
 681     log test_ldflags "$@"
 682     check_ld "$@" <<EOF
 683 int main(void){ return 0; }
 684 EOF
 685 }
 686
 687 check_ldflags(){
 688     log check_ldflags "$@"
 689     test_ldflags "$@" && add_ldflags "$@"
 690 }
 691
 692 check_header(){
 693     log check_header "$@"
 694     header=$1
 695     shift
 696     disable_safe $header
 697     check_cpp "$@" <<EOF && enable_safe $header
 698 #include <$header>
 699 int x;
 700 EOF
 701 }
 702
 703 check_func(){
 704     log check_func "$@"
 705     func=$1
 706     shift
 707     disable $func
 708     check_ld "$@" <<EOF && enable $func
 709 extern int $func();
 710 int main(void){ $func(); }
 711 EOF
 712 }
 713
 714 check_mathfunc(){
 715     log check_mathfunc "$@"
 716     func=$1
 717     shift
 718     disable $func
 719     check_ld "$@" <<EOF && enable $func
 720 #include <math.h>
 721 float foo(float f) { return $func(f); }
 722 int main(void){ return 0; }
 723 EOF
 724 }
 725
 726 check_func_headers(){
 727     log check_func_headers "$@"
 728     headers=$1
 729     funcs=$2
 730     shift 2
 731     {
 732         for hdr in $headers; do
 733             echo "#include <$hdr>"
 734         done
 735         for func in $funcs; do
 736             echo "long check_$func(void) { return (long) $func; }"
 737         done
 738         echo "int main(void) { return 0; }"
 739     } | check_ld "$@" && enable $funcs && enable_safe $headers
 740 }
 741
 742 check_cpp_condition(){
 743     log check_cpp_condition "$@"
 744     header=$1
 745     condition=$2
 746     shift 2
 747     check_cpp $($filter_cppflags "$@") <<EOF
 748 #include <$header>
 749 #if !($condition)
 750 #error "unsatisfied condition: $condition"
 751 #endif
 752 EOF
 753 }
 754
 755 check_lib(){
 756     log check_lib "$@"
 757     header="$1"
 758     func="$2"
 759     shift 2
 760     check_header $header && check_func $func "$@" && add_extralibs "$@"
 761 }
 762
 763 check_lib2(){
 764     log check_lib2 "$@"
 765     headers="$1"
 766     funcs="$2"
 767     shift 2
 768     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 769 }
 770
 771 check_pkg_config(){
 772     log check_pkg_config "$@"
 773     pkg="$1"
 774     headers="$2"
 775     funcs="$3"
 776     shift 3
 777     $pkg_config --exists $pkg || return
 778     pkg_cflags=$($pkg_config --cflags $pkg)
 779     pkg_libs=$($pkg_config --libs $pkg)
 780     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 781         set_safe ${pkg}_cflags $pkg_cflags   &&
 782         set_safe ${pkg}_libs   $pkg_libs
 783 }
 784
 785 check_exec(){
 786     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 787 }
 788
 789 check_exec_crash(){
 790     code=$(cat)
 791
 792     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 793     # are safe but may not be available everywhere.  Thus we use
 794     # raise(SIGTERM) instead.  The check is run in a subshell so we
 795     # can redirect the "Terminated" message from the shell.  SIGBUS
 796     # is not defined by standard C so it is used conditionally.
 797
 798     (check_exec "$@") >> $logfile 2>&1 <<EOF
 799 #include <signal.h>
 800 static void sighandler(int sig){
 801     raise(SIGTERM);
 802 }
 803 int main(void){
 804     signal(SIGILL, sighandler);
 805     signal(SIGFPE, sighandler);
 806     signal(SIGSEGV, sighandler);
 807 #ifdef SIGBUS
 808     signal(SIGBUS, sighandler);
 809 #endif
 810     { $code }
 811 }
 812 EOF
 813 }
 814
 815 check_type(){
 816     log check_type "$@"
 817     headers=$1
 818     type=$2
 819     shift 2
 820     disable_safe "$type"
 821     incs=""
 822     for hdr in $headers; do
 823         incs="$incs
 824 #include <$hdr>"
 825     done
 826     check_cc "$@" <<EOF && enable_safe "$type"
 827 $incs
 828 $type v;
 829 EOF
 830 }
 831
 832 check_struct(){
 833     log check_type "$@"
 834     headers=$1
 835     struct=$2
 836     member=$3
 837     shift 3
 838     disable_safe "${struct}_${member}"
 839     incs=""
 840     for hdr in $headers; do
 841         incs="$incs
 842 #include <$hdr>"
 843     done
 844     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 845 $incs
 846 const void *p = &(($struct *)0)->$member;
 847 EOF
 848 }
 849
 850 require(){
 851     name="$1"
 852     header="$2"
 853     func="$3"
 854     shift 3
 855     check_lib $header $func "$@" || die "ERROR: $name not found"
 856 }
 857
 858 require2(){
 859     name="$1"
 860     headers="$2"
 861     func="$3"
 862     shift 3
 863     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 864 }
 865
 866 require_pkg_config(){
 867     pkg="$1"
 868     check_pkg_config "$@" || die "ERROR: $pkg not found"
 869     add_cflags    $(get_safe ${pkg}_cflags)
 870     add_extralibs $(get_safe ${pkg}_libs)
 871 }
 872
 873 check_host_cc(){
 874     log check_host_cc "$@"
 875     cat > $TMPC
 876     log_file $TMPC
 877     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 878 }
 879
 880 check_host_cflags(){
 881     log check_host_cflags "$@"
 882     check_host_cc "$@" <<EOF && append host_cflags "$@"
 883 int x;
 884 EOF
 885 }
 886
 887 apply(){
 888     file=$1
 889     shift
 890     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 891 }
 892
 893 cp_if_changed(){
 894     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 895     mkdir -p "$(dirname $2)"
 896     cp -f "$1" "$2"
 897 }
 898
 899 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 900 # system-dependent things.
 901
 902 COMPONENT_LIST="
 903     bsfs
 904     decoders
 905     demuxers
 906     encoders
 907     filters
 908     hwaccels
 909     indevs
 910     muxers
 911     outdevs
 912     parsers
 913     protocols
 914 "
 915
 916 PROGRAM_LIST="
 917     avconv
 918     avplay
 919     avprobe
 920     avserver
 921 "
 922
 923 CONFIG_LIST="
 924     $COMPONENT_LIST
 925     $PROGRAM_LIST
 926     ac3dsp
 927     avcodec
 928     avdevice
 929     avfilter
 930     avformat
 931     avresample
 932     avisynth
 933     bzlib
 934     dct
 935     doc
 936     dwt
 937     dxva2
 938     fastdiv
 939     fft
 940     frei0r
 941     gnutls
 942     gpl
 943     gray
 944     hardcoded_tables
 945     libcdio
 946     libdc1394
 947     libfaac
 948     libfreetype
 949     libgsm
 950     libmp3lame
 951     libnut
 952     libopencore_amrnb
 953     libopencore_amrwb
 954     libopencv
 955     libopenjpeg
 956     libpulse
 957     librtmp
 958     libschroedinger
 959     libspeex
 960     libtheora
 961     libvo_aacenc
 962     libvo_amrwbenc
 963     libvorbis
 964     libvpx
 965     libx264
 966     libxavs
 967     libxvid
 968     lsp
 969     mdct
 970     memalign_hack
 971     mpegaudiodsp
 972     network
 973     nonfree
 974     openssl
 975     pic
 976     rdft
 977     rtpdec
 978     runtime_cpudetect
 979     safe_bitstream_reader
 980     shared
 981     sinewin
 982     small
 983     sram
 984     static
 985     swscale
 986     swscale_alpha
 987     thumb
 988     vaapi
 989     vda
 990     vdpau
 991     version3
 992     xmm_clobber_test
 993     x11grab
 994     zlib
 995 "
 996
 997 THREADS_LIST='
 998     pthreads
 999     w32threads
1000 '
1001
1002 ARCH_LIST='
1003     alpha
1004     arm
1005     avr32
1006     avr32_ap
1007     avr32_uc
1008     bfin
1009     ia64
1010     m68k
1011     mips
1012     mips64
1013     parisc
1014     ppc
1015     ppc64
1016     s390
1017     sh4
1018     sparc
1019     sparc64
1020     tomi
1021     x86
1022     x86_32
1023     x86_64
1024 '
1025
1026 ARCH_EXT_LIST='
1027     altivec
1028     amd3dnow
1029     amd3dnowext
1030     armv5te
1031     armv6
1032     armv6t2
1033     armvfp
1034     avx
1035     mmi
1036     mmx
1037     mmx2
1038     neon
1039     ppc4xx
1040     sse
1041     ssse3
1042     vfpv3
1043     vis
1044 '
1045
1046 HAVE_LIST_PUB='
1047     bigendian
1048     fast_unaligned
1049 '
1050
1051 HAVE_LIST="
1052     $ARCH_EXT_LIST
1053     $HAVE_LIST_PUB
1054     $THREADS_LIST
1055     aligned_stack
1056     alsa_asoundlib_h
1057     altivec_h
1058     arpa_inet_h
1059     asm_mod_y
1060     attribute_may_alias
1061     attribute_packed
1062     closesocket
1063     cmov
1064     dcbzl
1065     dev_bktr_ioctl_bt848_h
1066     dev_bktr_ioctl_meteor_h
1067     dev_ic_bt8xx_h
1068     dev_video_bktr_ioctl_bt848_h
1069     dev_video_meteor_ioctl_meteor_h
1070     dlfcn_h
1071     dlopen
1072     dos_paths
1073     ebp_available
1074     ebx_available
1075     exp2
1076     exp2f
1077     fast_64bit
1078     fast_clz
1079     fast_cmov
1080     fcntl
1081     fork
1082     getaddrinfo
1083     gethrtime
1084     GetProcessAffinityMask
1085     GetProcessMemoryInfo
1086     GetProcessTimes
1087     getrusage
1088     gnu_as
1089     ibm_asm
1090     inet_aton
1091     inline_asm
1092     isatty
1093     ldbrx
1094     libdc1394_1
1095     libdc1394_2
1096     llrint
1097     llrintf
1098     local_aligned_16
1099     local_aligned_8
1100     localtime_r
1101     log2
1102     log2f
1103     loongson
1104     lrint
1105     lrintf
1106     machine_ioctl_bt848_h
1107     machine_ioctl_meteor_h
1108     malloc_h
1109     MapViewOfFile
1110     memalign
1111     mkstemp
1112     mmap
1113     netinet_sctp_h
1114     poll_h
1115     posix_memalign
1116     round
1117     roundf
1118     sched_getaffinity
1119     sdl
1120     sdl_video_size
1121     setmode
1122     setrlimit
1123     sndio_h
1124     socklen_t
1125     soundcard_h
1126     strerror_r
1127     strptime
1128     strtok_r
1129     struct_addrinfo
1130     struct_ipv6_mreq
1131     struct_rusage_ru_maxrss
1132     struct_sockaddr_in6
1133     struct_sockaddr_sa_len
1134     struct_sockaddr_storage
1135     struct_v4l2_frmivalenum_discrete
1136     symver
1137     symver_asm_label
1138     symver_gnu_asm
1139     sysconf
1140     sysctl
1141     sys_mman_h
1142     sys_param_h
1143     sys_resource_h
1144     sys_select_h
1145     sys_soundcard_h
1146     sys_videoio_h
1147     threads
1148     trunc
1149     truncf
1150     vfp_args
1151     VirtualAlloc
1152     winsock2_h
1153     xform_asm
1154     xmm_clobbers
1155     yasm
1156 "
1157
1158 # options emitted with CONFIG_ prefix but not available on command line
1159 CONFIG_EXTRA="
1160     aandct
1161     avutil
1162     golomb
1163     gplv3
1164     h264chroma
1165     h264dsp
1166     h264pred
1167     h264qpel
1168     huffman
1169     lgplv3
1170     lpc
1171 "
1172
1173 CMDLINE_SELECT="
1174     $ARCH_EXT_LIST
1175     $CONFIG_LIST
1176     $THREADS_LIST
1177     asm
1178     cross_compile
1179     debug
1180     extra_warnings
1181     logging
1182     optimizations
1183     symver
1184     yasm
1185 "
1186
1187 PATHS_LIST='
1188     bindir
1189     datadir
1190     incdir
1191     libdir
1192     mandir
1193     prefix
1194     shlibdir
1195 '
1196
1197 CMDLINE_SET="
1198     $PATHS_LIST
1199     ar
1200     arch
1201     as
1202     build_suffix
1203     cc
1204     cpu
1205     cross_prefix
1206     dep_cc
1207     extra_version
1208     host_cc
1209     host_cflags
1210     host_ldflags
1211     host_libs
1212     host_os
1213     ld
1214     logfile
1215     malloc_prefix
1216     nm
1217     optflags
1218     pkg_config
1219     samples
1220     sysinclude
1221     sysroot
1222     target_exec
1223     target_os
1224     target_path
1225 "
1226
1227 CMDLINE_APPEND="
1228     extra_cflags
1229 "
1230
1231 # code dependency declarations
1232
1233 # architecture extensions
1234
1235 armv5te_deps="arm"
1236 armv6_deps="arm"
1237 armv6t2_deps="arm"
1238 armvfp_deps="arm"
1239 neon_deps="arm"
1240 vfpv3_deps="armvfp"
1241
1242 mmi_deps="mips"
1243
1244 altivec_deps="ppc"
1245 ppc4xx_deps="ppc"
1246
1247 vis_deps="sparc"
1248
1249 x86_64_suggest="cmov fast_cmov"
1250 amd3dnow_deps="mmx"
1251 amd3dnowext_deps="amd3dnow"
1252 mmx_deps="x86"
1253 mmx2_deps="mmx"
1254 sse_deps="mmx"
1255 ssse3_deps="sse"
1256 avx_deps="ssse3"
1257
1258 aligned_stack_if_any="ppc x86"
1259 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1260 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1261 fast_unaligned_if_any="armv6 ppc x86"
1262
1263 inline_asm_deps="!tms470"
1264 need_memalign="altivec neon sse"
1265
1266 symver_if_any="symver_asm_label symver_gnu_asm"
1267
1268 # subsystems
1269 dct_select="rdft"
1270 mdct_select="fft"
1271 rdft_select="fft"
1272 mpegaudiodsp_select="dct"
1273
1274 # decoders / encoders / hardware accelerators
1275 aac_decoder_select="mdct sinewin"
1276 aac_encoder_select="mdct sinewin"
1277 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1278 ac3_decoder_select="mdct ac3dsp ac3_parser"
1279 ac3_encoder_select="mdct ac3dsp"
1280 ac3_fixed_encoder_select="mdct ac3dsp"
1281 alac_encoder_select="lpc"
1282 amrnb_decoder_select="lsp"
1283 amrwb_decoder_select="lsp"
1284 atrac1_decoder_select="mdct sinewin"
1285 atrac3_decoder_select="mdct"
1286 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1287 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1288 cavs_decoder_select="golomb"
1289 cook_decoder_select="mdct sinewin"
1290 cscd_decoder_suggest="zlib"
1291 dca_decoder_select="mdct"
1292 dnxhd_encoder_select="aandct"
1293 dxa_decoder_select="zlib"
1294 eac3_decoder_select="ac3_decoder"
1295 eac3_encoder_select="mdct ac3dsp"
1296 eamad_decoder_select="aandct"
1297 eatgq_decoder_select="aandct"
1298 eatqi_decoder_select="aandct"
1299 ffv1_decoder_select="golomb"
1300 flac_decoder_select="golomb"
1301 flac_encoder_select="golomb lpc"
1302 flashsv_decoder_select="zlib"
1303 flashsv_encoder_select="zlib"
1304 flashsv2_decoder_select="zlib"
1305 flv_decoder_select="h263_decoder"
1306 flv_encoder_select="h263_encoder"
1307 fraps_decoder_select="huffman"
1308 h261_encoder_select="aandct"
1309 h263_decoder_select="h263_parser"
1310 h263_encoder_select="aandct"
1311 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1312 h263i_decoder_select="h263_decoder"
1313 h263p_encoder_select="h263_encoder"
1314 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1315 h264_dxva2_hwaccel_deps="dxva2api_h"
1316 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1317 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1318 h264_vda_hwaccel_select="vda h264_decoder"
1319 h264_vdpau_decoder_select="vdpau h264_decoder"
1320 imc_decoder_select="fft mdct sinewin"
1321 jpegls_decoder_select="golomb"
1322 jpegls_encoder_select="golomb"
1323 ljpeg_encoder_select="aandct"
1324 loco_decoder_select="golomb"
1325 mjpeg_encoder_select="aandct"
1326 mlp_decoder_select="mlp_parser"
1327 mp1_decoder_select="mpegaudiodsp"
1328 mp1float_decoder_select="mpegaudiodsp"
1329 mp2_decoder_select="mpegaudiodsp"
1330 mp2float_decoder_select="mpegaudiodsp"
1331 mp3_decoder_select="mpegaudiodsp"
1332 mp3adu_decoder_select="mpegaudiodsp"
1333 mp3adufloat_decoder_select="mpegaudiodsp"
1334 mp3float_decoder_select="mpegaudiodsp"
1335 mp3on4_decoder_select="mpegaudiodsp"
1336 mp3on4float_decoder_select="mpegaudiodsp"
1337 mpc7_decoder_select="mpegaudiodsp"
1338 mpc8_decoder_select="mpegaudiodsp"
1339 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1340 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1341 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1342 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1343 mpeg1video_encoder_select="aandct"
1344 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1345 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1346 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1347 mpeg2video_encoder_select="aandct"
1348 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1349 mpeg4_encoder_select="h263_encoder"
1350 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1351 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1352 msmpeg4v1_decoder_select="h263_decoder"
1353 msmpeg4v1_encoder_select="h263_encoder"
1354 msmpeg4v2_decoder_select="h263_decoder"
1355 msmpeg4v2_encoder_select="h263_encoder"
1356 msmpeg4v3_decoder_select="h263_decoder"
1357 msmpeg4v3_encoder_select="h263_encoder"
1358 nellymoser_decoder_select="mdct sinewin"
1359 nellymoser_encoder_select="mdct sinewin"
1360 png_decoder_select="zlib"
1361 png_encoder_select="zlib"
1362 qcelp_decoder_select="lsp"
1363 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1364 ra_144_encoder_select="lpc"
1365 ralf_decoder_select="golomb"
1366 rv10_decoder_select="h263_decoder"
1367 rv10_encoder_select="h263_encoder"
1368 rv20_decoder_select="h263_decoder"
1369 rv20_encoder_select="h263_encoder"
1370 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1371 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1372 shorten_decoder_select="golomb"
1373 sipr_decoder_select="lsp"
1374 snow_decoder_select="dwt"
1375 snow_encoder_select="aandct dwt"
1376 svq1_encoder_select="aandct"
1377 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1378 svq3_decoder_suggest="zlib"
1379 theora_decoder_select="vp3_decoder"
1380 tiff_decoder_suggest="zlib"
1381 tiff_encoder_suggest="zlib"
1382 truehd_decoder_select="mlp_decoder"
1383 tscc_decoder_select="zlib"
1384 twinvq_decoder_select="mdct lsp sinewin"
1385 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1386 vc1_dxva2_hwaccel_deps="dxva2api_h"
1387 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1388 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1389 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1390 vc1image_decoder_select="vc1_decoder"
1391 vorbis_decoder_select="mdct"
1392 vorbis_encoder_select="mdct"
1393 vp6_decoder_select="huffman"
1394 vp6a_decoder_select="vp6_decoder"
1395 vp6f_decoder_select="vp6_decoder"
1396 vp8_decoder_select="h264pred h264qpel"
1397 wmapro_decoder_select="mdct sinewin"
1398 wmav1_decoder_select="mdct sinewin"
1399 wmav1_encoder_select="mdct sinewin"
1400 wmav2_decoder_select="mdct sinewin"
1401 wmav2_encoder_select="mdct sinewin"
1402 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1403 wmv1_decoder_select="h263_decoder"
1404 wmv1_encoder_select="h263_encoder"
1405 wmv2_decoder_select="h263_decoder"
1406 wmv2_encoder_select="h263_encoder"
1407 wmv3_decoder_select="vc1_decoder"
1408 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1409 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1410 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1411 wmv3image_decoder_select="wmv3_decoder"
1412 zerocodec_decoder_select="zlib"
1413 zlib_decoder_select="zlib"
1414 zlib_encoder_select="zlib"
1415 zmbv_decoder_select="zlib"
1416 zmbv_encoder_select="zlib"
1417
1418 vaapi_deps="va_va_h"
1419 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1420 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1421
1422 # parsers
1423 h264_parser_select="golomb h264dsp h264pred"
1424
1425 # external libraries
1426 libfaac_encoder_deps="libfaac"
1427 libgsm_decoder_deps="libgsm"
1428 libgsm_encoder_deps="libgsm"
1429 libgsm_ms_decoder_deps="libgsm"
1430 libgsm_ms_encoder_deps="libgsm"
1431 libmp3lame_encoder_deps="libmp3lame"
1432 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1433 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1434 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1435 libopenjpeg_decoder_deps="libopenjpeg"
1436 libschroedinger_decoder_deps="libschroedinger"
1437 libschroedinger_encoder_deps="libschroedinger"
1438 libspeex_decoder_deps="libspeex"
1439 libspeex_encoder_deps="libspeex"
1440 libtheora_encoder_deps="libtheora"
1441 libvo_aacenc_encoder_deps="libvo_aacenc"
1442 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1443 libvorbis_encoder_deps="libvorbis"
1444 libvpx_decoder_deps="libvpx"
1445 libvpx_encoder_deps="libvpx"
1446 libx264_encoder_deps="libx264"
1447 libxavs_encoder_deps="libxavs"
1448 libxvid_encoder_deps="libxvid"
1449
1450 # demuxers / muxers
1451 ac3_demuxer_select="ac3_parser"
1452 asf_stream_muxer_select="asf_muxer"
1453 avisynth_demuxer_deps="avisynth"
1454 dirac_demuxer_select="dirac_parser"
1455 eac3_demuxer_select="ac3_parser"
1456 flac_demuxer_select="flac_parser"
1457 ipod_muxer_select="mov_muxer"
1458 libnut_demuxer_deps="libnut"
1459 libnut_muxer_deps="libnut"
1460 matroska_audio_muxer_select="matroska_muxer"
1461 matroska_demuxer_suggest="zlib bzlib"
1462 mov_demuxer_suggest="zlib"
1463 mp3_demuxer_select="mpegaudio_parser"
1464 mp4_muxer_select="mov_muxer"
1465 mpegtsraw_demuxer_select="mpegts_demuxer"
1466 mxf_d10_muxer_select="mxf_muxer"
1467 ogg_demuxer_select="golomb"
1468 psp_muxer_select="mov_muxer"
1469 rtp_demuxer_select="sdp_demuxer"
1470 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1471 rtsp_demuxer_select="http_protocol rtpdec"
1472 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1473 sap_demuxer_select="sdp_demuxer"
1474 sap_muxer_select="rtp_muxer rtp_protocol"
1475 sdp_demuxer_select="rtpdec"
1476 spdif_muxer_select="aac_parser"
1477 tg2_muxer_select="mov_muxer"
1478 tgp_muxer_select="mov_muxer"
1479 w64_demuxer_deps="wav_demuxer"
1480
1481 # indevs / outdevs
1482 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1483 alsa_outdev_deps="alsa_asoundlib_h"
1484 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1485 dv1394_indev_deps="dv1394 dv_demuxer"
1486 fbdev_indev_deps="linux_fb_h"
1487 jack_indev_deps="jack_jack_h"
1488 libcdio_indev_deps="libcdio"
1489 libdc1394_indev_deps="libdc1394"
1490 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1491 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1492 pulse_indev_deps="libpulse"
1493 sndio_indev_deps="sndio_h"
1494 sndio_outdev_deps="sndio_h"
1495 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1496 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1497 vfwcap_indev_extralibs="-lavicap32"
1498 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1499
1500 # protocols
1501 gopher_protocol_deps="network"
1502 httpproxy_protocol_deps="network"
1503 httpproxy_protocol_select="tcp_protocol"
1504 http_protocol_deps="network"
1505 http_protocol_select="tcp_protocol"
1506 https_protocol_select="tls_protocol"
1507 librtmp_protocol_deps="librtmp"
1508 librtmpe_protocol_deps="librtmp"
1509 librtmps_protocol_deps="librtmp"
1510 librtmpt_protocol_deps="librtmp"
1511 librtmpte_protocol_deps="librtmp"
1512 mmsh_protocol_select="http_protocol"
1513 mmst_protocol_deps="network"
1514 rtmp_protocol_deps="!librtmp_protocol"
1515 rtmp_protocol_select="tcp_protocol"
1516 rtp_protocol_select="udp_protocol"
1517 sctp_protocol_deps="network netinet_sctp_h"
1518 tcp_protocol_deps="network"
1519 tls_protocol_deps_any="openssl gnutls"
1520 tls_protocol_select="tcp_protocol"
1521 udp_protocol_deps="network"
1522
1523 # filters
1524 blackframe_filter_deps="gpl"
1525 boxblur_filter_deps="gpl"
1526 cropdetect_filter_deps="gpl"
1527 delogo_filter_deps="gpl"
1528 drawtext_filter_deps="libfreetype"
1529 frei0r_filter_deps="frei0r dlopen strtok_r"
1530 frei0r_filter_extralibs='$ldl'
1531 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1532 frei0r_src_filter_extralibs='$ldl'
1533 hqdn3d_filter_deps="gpl"
1534 resample_filter_deps="avresample"
1535 ocv_filter_deps="libopencv"
1536 yadif_filter_deps="gpl"
1537
1538 # libraries
1539 avdevice_deps="avcodec avformat"
1540 avfilter_deps="swscale"
1541 avformat_deps="avcodec"
1542
1543 # programs
1544 avconv_deps="avcodec avfilter avformat avresample swscale format_filter"
1545 avplay_deps="avcodec avformat swscale sdl"
1546 avplay_select="rdft"
1547 avprobe_deps="avcodec avformat"
1548 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1549 avserver_extralibs='$ldl'
1550
1551 doc_deps="texi2html"
1552
1553 # tests
1554
1555 test_deps(){
1556     suf1=$1
1557     suf2=$2
1558     shift 2
1559     for v; do
1560         dep=${v%=*}
1561         tests=${v#*=}
1562         for name in ${tests}; do
1563             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1564         done
1565     done
1566 }
1567
1568 mxf_d10_test_deps="avfilter"
1569 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1570
1571 test_deps _encoder _decoder                                             \
1572     adpcm_ima_qt                                                        \
1573     adpcm_ima_wav                                                       \
1574     adpcm_ms                                                            \
1575     adpcm_swf                                                           \
1576     adpcm_yamaha=adpcm_yam                                              \
1577     alac                                                                \
1578     asv1                                                                \
1579     asv2                                                                \
1580     bmp                                                                 \
1581     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1582     dvvideo="dv dv_411 dv50"                                            \
1583     ffv1                                                                \
1584     flac                                                                \
1585     flashsv                                                             \
1586     flv                                                                 \
1587     adpcm_g726=g726                                                     \
1588     gif                                                                 \
1589     h261                                                                \
1590     h263="h263 h263p"                                                   \
1591     huffyuv                                                             \
1592     jpegls                                                              \
1593     mjpeg="jpg mjpeg ljpeg"                                             \
1594     mp2                                                                 \
1595     mpeg1video="mpeg mpeg1b"                                            \
1596     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1597     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1598     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1599     mpeg4="mpeg4thread error rc"                                        \
1600     msmpeg4v3=msmpeg4                                                   \
1601     msmpeg4v2                                                           \
1602     pbm=pbmpipe                                                         \
1603     pcx                                                                 \
1604     pgm="pgm pgmpipe"                                                   \
1605     png                                                                 \
1606     ppm="ppm ppmpipe"                                                   \
1607     rawvideo="rgb yuv"                                                  \
1608     roq                                                                 \
1609     rv10                                                                \
1610     rv20                                                                \
1611     sgi                                                                 \
1612     snow="snow snowll"                                                  \
1613     svq1                                                                \
1614     targa=tga                                                           \
1615     tiff                                                                \
1616     wmav1                                                               \
1617     wmav2                                                               \
1618     wmv1                                                                \
1619     wmv2                                                                \
1620
1621 test_deps _muxer _demuxer                                               \
1622     aiff                                                                \
1623     pcm_alaw=alaw                                                       \
1624     asf                                                                 \
1625     au                                                                  \
1626     avi                                                                 \
1627     dv=dv_fmt                                                           \
1628     ffm                                                                 \
1629     flv=flv_fmt                                                         \
1630     gxf                                                                 \
1631     matroska=mkv                                                        \
1632     mmf                                                                 \
1633     mov                                                                 \
1634     pcm_mulaw=mulaw                                                     \
1635     mxf="mxf mxf_d10"                                                   \
1636     nut                                                                 \
1637     ogg                                                                 \
1638     rawvideo=pixfmt                                                     \
1639     rm                                                                  \
1640     swf                                                                 \
1641     mpegts=ts                                                           \
1642     voc                                                                 \
1643     wav                                                                 \
1644     yuv4mpegpipe=yuv4mpeg                                               \
1645
1646 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1647 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1648
1649 # default parameters
1650
1651 logfile="config.log"
1652
1653 # installation paths
1654 prefix_default="/usr/local"
1655 bindir_default='${prefix}/bin'
1656 datadir_default='${prefix}/share/avconv'
1657 incdir_default='${prefix}/include'
1658 libdir_default='${prefix}/lib'
1659 mandir_default='${prefix}/share/man'
1660 shlibdir_default="$libdir_default"
1661
1662 # toolchain
1663 ar_default="ar"
1664 cc_default="gcc"
1665 cc_version=\"unknown\"
1666 host_cc_default="gcc"
1667 ln_s="ln -sf"
1668 nm_default="nm"
1669 objformat="elf"
1670 pkg_config_default=pkg-config
1671 ranlib="ranlib"
1672 yasmexe="yasm"
1673
1674 nm_opts='-g'
1675 nogas=":"
1676
1677 # machine
1678 arch_default=$(uname -m)
1679 cpu="generic"
1680
1681 # OS
1682 target_os_default=$(tolower $(uname -s))
1683 host_os=$target_os_default
1684
1685 # configurable options
1686 enable $PROGRAM_LIST
1687
1688 enable avcodec
1689 enable avdevice
1690 enable avfilter
1691 enable avformat
1692 enable avresample
1693 enable avutil
1694 enable swscale
1695
1696 enable asm
1697 enable debug
1698 enable doc
1699 enable fastdiv
1700 enable network
1701 enable optimizations
1702 enable safe_bitstream_reader
1703 enable static
1704 enable swscale_alpha
1705
1706 # build settings
1707 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1708 AVSERVERLDFLAGS=-Wl,-E
1709 LIBPREF="lib"
1710 LIBSUF=".a"
1711 FULLNAME='$(NAME)$(BUILDSUF)'
1712 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1713 SLIBPREF="lib"
1714 SLIBSUF=".so"
1715 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1716 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1717 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1718 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1719 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1720 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1721
1722 AS_O='-o $@'
1723 CC_O='-o $@'
1724
1725 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1726 host_libs='-lm'
1727
1728 target_path='$(CURDIR)'
1729
1730 # since the object filename is not given with the -MM flag, the compiler
1731 # is only able to print the basename, and we must add the path ourselves
1732 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1733 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1734
1735 # find source path
1736 if test -f configure; then
1737     source_path=.
1738 else
1739     source_path=$(cd $(dirname "$0"); pwd)
1740     echo "$source_path" | grep -q '[[:blank:]]' &&
1741         die "Out of tree builds are impossible with whitespace in source path."
1742     test -e "$source_path/config.h" &&
1743         die "Out of tree builds are impossible with config.h in source dir."
1744 fi
1745
1746 for v in "$@"; do
1747     r=${v#*=}
1748     l=${v%"$r"}
1749     r=$(sh_quote "$r")
1750     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1751 done
1752
1753 find_things(){
1754     thing=$1
1755     pattern=$2
1756     file=$source_path/$3
1757     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1758 }
1759
1760 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1761 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1762 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1763 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1764 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1765 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1766 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1767 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1768 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1769 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1770 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1771
1772 ALL_COMPONENTS="
1773     $BSF_LIST
1774     $DECODER_LIST
1775     $DEMUXER_LIST
1776     $ENCODER_LIST
1777     $FILTER_LIST
1778     $HWACCEL_LIST
1779     $INDEV_LIST
1780     $MUXER_LIST
1781     $OUTDEV_LIST
1782     $PARSER_LIST
1783     $PROTOCOL_LIST
1784 "
1785
1786 find_tests(){
1787     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1788 }
1789
1790 ACODEC_TESTS=$(find_tests acodec)
1791 VCODEC_TESTS=$(find_tests vsynth1)
1792 LAVF_TESTS=$(find_tests lavf)
1793 LAVFI_TESTS=$(find_tests lavfi)
1794 SEEK_TESTS=$(find_tests seek seek_)
1795
1796 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1797
1798 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1799
1800 for n in $COMPONENT_LIST; do
1801     v=$(toupper ${n%s})_LIST
1802     eval enable \$$v
1803     eval ${n}_if_any="\$$v"
1804 done
1805
1806 enable $ARCH_EXT_LIST $ALL_TESTS
1807
1808 die_unknown(){
1809     echo "Unknown option \"$1\"."
1810     echo "See $0 --help for available options."
1811     exit 1
1812 }
1813
1814 show_list() {
1815     suffix=_$1
1816     shift
1817     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1818     exit 0
1819 }
1820
1821 for opt do
1822     optval="${opt#*=}"
1823     case "$opt" in
1824     --extra-ldflags=*) add_ldflags $optval
1825     ;;
1826     --extra-libs=*) add_extralibs $optval
1827     ;;
1828     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1829     ;;
1830     --enable-debug=*) debuglevel="$optval"
1831     ;;
1832     --disable-everything)
1833     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1834     ;;
1835     --enable-*=*|--disable-*=*)
1836     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1837     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1838     eval list=\$$(toupper $thing)_LIST
1839     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1840     $action $(filter "$name" $list)
1841     ;;
1842     --enable-?*|--disable-?*)
1843     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1844     if is_in $option $COMPONENT_LIST; then
1845         test $action = disable && action=unset
1846         eval $action \$$(toupper ${option%s})_LIST
1847     elif is_in $option $CMDLINE_SELECT; then
1848         $action $option
1849     else
1850         die_unknown $opt
1851     fi
1852     ;;
1853     --list-*)
1854         NAME="${opt#--list-}"
1855         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1856         NAME=${NAME%s}
1857         eval show_list $NAME \$$(toupper $NAME)_LIST
1858     ;;
1859     --help|-h) show_help
1860     ;;
1861     *)
1862     optname="${opt%%=*}"
1863     optname="${optname#--}"
1864     optname=$(echo "$optname" | sed 's/-/_/g')
1865     if is_in $optname $CMDLINE_SET; then
1866         eval $optname='$optval'
1867     elif is_in $optname $CMDLINE_APPEND; then
1868         append $optname "$optval"
1869     else
1870          die_unknown $opt
1871     fi
1872     ;;
1873     esac
1874 done
1875
1876 disabled logging && logfile=/dev/null
1877
1878 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1879 set >> $logfile
1880
1881 test -n "$cross_prefix" && enable cross_compile
1882
1883 if enabled cross_compile; then
1884     test -n "$arch" && test -n "$target_os" ||
1885         die "Must specify target arch and OS when cross-compiling"
1886 fi
1887
1888 set_default arch target_os
1889
1890 ar_default="${cross_prefix}${ar_default}"
1891 cc_default="${cross_prefix}${cc_default}"
1892 nm_default="${cross_prefix}${nm_default}"
1893 pkg_config_default="${cross_prefix}${pkg_config_default}"
1894 ranlib="${cross_prefix}${ranlib}"
1895
1896 sysinclude_default="${sysroot}/usr/include"
1897
1898 set_default cc nm pkg_config sysinclude
1899 enabled cross_compile || host_cc_default=$cc
1900 set_default host_cc
1901
1902 if ! $pkg_config --version >/dev/null 2>&1; then
1903     warn "$pkg_config not found, library detection may fail."
1904     pkg_config=false
1905 fi
1906
1907 exesuf() {
1908     case $1 in
1909         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1910     esac
1911 }
1912
1913 EXESUF=$(exesuf $target_os)
1914 HOSTEXESUF=$(exesuf $host_os)
1915
1916 # set temporary file name
1917 : ${TMPDIR:=$TEMPDIR}
1918 : ${TMPDIR:=$TMP}
1919 : ${TMPDIR:=/tmp}
1920
1921 if ! check_cmd mktemp -u XXXXXX; then
1922     # simple replacement for missing mktemp
1923     # NOT SAFE FOR GENERAL USE
1924     mktemp(){
1925         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1926     }
1927 fi
1928
1929 tmpfile(){
1930     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1931         (set -C; exec > $tmp) 2>/dev/null ||
1932         die "Unable to create temporary file in $TMPDIR."
1933     append TMPFILES $tmp
1934     eval $1=$tmp
1935 }
1936
1937 trap 'rm -f -- $TMPFILES' EXIT
1938
1939 tmpfile TMPASM .asm
1940 tmpfile TMPC   .c
1941 tmpfile TMPE   $EXESUF
1942 tmpfile TMPH   .h
1943 tmpfile TMPO   .o
1944 tmpfile TMPS   .S
1945 tmpfile TMPSH  .sh
1946 tmpfile TMPV   .ver
1947
1948 unset -f mktemp
1949
1950 chmod +x $TMPE
1951
1952 # make sure we can execute files in $TMPDIR
1953 cat > $TMPSH 2>> $logfile <<EOF
1954 #! /bin/sh
1955 EOF
1956 chmod +x $TMPSH >> $logfile 2>&1
1957 if ! $TMPSH >> $logfile 2>&1; then
1958     cat <<EOF
1959 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1960 variable to another directory and make sure that it is not mounted noexec.
1961 EOF
1962     die "Sanity test failed."
1963 fi
1964
1965 filter_asflags=echo
1966 filter_cflags=echo
1967 filter_cppflags=echo
1968
1969 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1970     cc_type=llvm_gcc
1971     cc_version=__VERSION__
1972     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1973     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1974     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1975     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1976     speed_cflags='-O3'
1977     size_cflags='-Os'
1978 elif $cc -v 2>&1 | grep -qi ^gcc; then
1979     cc_type=gcc
1980     cc_version=__VERSION__
1981     gcc_version=$($cc --version | head -n1)
1982     gcc_basever=$($cc -dumpversion)
1983     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1984     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1985     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1986     if ! $cc -dumpversion | grep -q '^2\.'; then
1987         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1988         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1989     fi
1990     speed_cflags='-O3'
1991     size_cflags='-Os'
1992 elif $cc --version 2>/dev/null | grep -q Intel; then
1993     cc_type=icc
1994     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1995     cc_ident=$($cc --version | head -n1)
1996     icc_version=$($cc -dumpversion)
1997     CC_DEPFLAGS='-MMD'
1998     AS_DEPFLAGS='-MMD'
1999     speed_cflags='-O3'
2000     size_cflags='-Os'
2001     noopt_cflags='-O1'
2002 elif $cc -v 2>&1 | grep -q xlc; then
2003     cc_type=xlc
2004     cc_version="AV_STRINGIFY(__IBMC__)"
2005     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2006     speed_cflags='-O5'
2007     size_cflags='-O5 -qcompact'
2008 elif $cc -V 2>/dev/null | grep -q Compaq; then
2009     cc_type=ccc
2010     cc_version="AV_STRINGIFY(__DECC_VER)"
2011     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2012     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2013     debuglevel=3
2014     add_ldflags -Wl,-z,now # calls to libots crash without this
2015     speed_cflags='-fast'
2016     size_cflags='-O1'
2017 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2018     test -d "$sysroot" || die "No valid sysroot specified."
2019     cc_type=armcc
2020     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2021     cc_ident=$($cc --vsn | head -n1)
2022     armcc_conf="$PWD/armcc.conf"
2023     $cc --arm_linux_configure                 \
2024         --arm_linux_config_file="$armcc_conf" \
2025         --configure_sysroot="$sysroot"        \
2026         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2027         die "Error creating armcc configuration file."
2028     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2029     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2030     as_default="${cross_prefix}gcc"
2031     CC_DEPFLAGS='-MMD'
2032     AS_DEPFLAGS='-MMD'
2033     speed_cflags='-O3'
2034     size_cflags='-Os'
2035     filter_asflags="filter_out -W${armcc_opt}*"
2036 elif $cc -version 2>/dev/null | grep -q TMS470; then
2037     cc_type=tms470
2038     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2039     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2040     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2041     CC_O='-fr=$(@D)'
2042     as_default="${cross_prefix}gcc"
2043     ld_default="${cross_prefix}gcc"
2044     TMPO=$(basename $TMPC .c).o
2045     append TMPFILES $TMPO
2046     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2047     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2048     AS_DEPFLAGS='-MMD'
2049     speed_cflags='-O3 -mf=5'
2050     size_cflags='-O3 -mf=2'
2051     filter_cflags=tms470_flags
2052     tms470_flags(){
2053         for flag; do
2054             case $flag in
2055                 -march=*|-mcpu=*)
2056                     case "${flag#*=}" in
2057                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2058                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2059                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2060                         armv6*|arm11*)          echo -mv=6   ;;
2061                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2062                                                 echo -mv=5e  ;;
2063                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2064                     esac
2065                     ;;
2066                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2067                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2068                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2069                 -msoft-float)   echo --float_support=vfplib       ;;
2070                 -O[0-3]|-mf=*)  echo $flag                        ;;
2071                 -g)             echo -g -mn                       ;;
2072                 -pds=*)         echo $flag                        ;;
2073             esac
2074         done
2075     }
2076 elif $cc -v 2>&1 | grep -q clang; then
2077     cc_type=clang
2078     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2079         cc_version=__clang_version__ || cc_version=__VERSION__
2080     cc_ident=$($cc --version | head -n1)
2081     CC_DEPFLAGS='-MMD'
2082     AS_DEPFLAGS='-MMD'
2083     speed_cflags='-O3'
2084     size_cflags='-Os'
2085 elif $cc -V 2>&1 | grep -q Sun; then
2086     cc_type=suncc
2087     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2088     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2089     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2090     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2091     add_ldflags -xc99
2092     speed_cflags='-O5'
2093     size_cflags='-O5 -xspace'
2094     filter_cflags=suncc_flags
2095     suncc_flags(){
2096         for flag; do
2097             case $flag in
2098                 -march=*|-mcpu=*)
2099                     case "${flag#*=}" in
2100                         native)                   echo -xtarget=native       ;;
2101                         v9|niagara)               echo -xarch=sparc          ;;
2102                         ultrasparc)               echo -xarch=sparcvis       ;;
2103                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2104                         i586|pentium)             echo -xchip=pentium        ;;
2105                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2106                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2107                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2108                         pentium4*)          echo -xtarget=pentium4           ;;
2109                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2110                         *-sse3)             echo -xarch=sse3                 ;;
2111                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2112                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2113                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2114                         k8|opteron|athlon64|athlon-fx)
2115                                                   echo -xarch=sse2a          ;;
2116                         athlon*)                  echo -xarch=pentium_proa   ;;
2117                     esac
2118                     ;;
2119                 -std=c99)             echo -xc99              ;;
2120                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2121                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2122                 -W*,*)                echo $flag              ;;
2123                 -f*-*|-W*)                                    ;;
2124                 *)                    echo $flag              ;;
2125             esac
2126         done
2127     }
2128 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2129     cc_type=pathscale
2130     cc_version=__PATHSCALE__
2131     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2132     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2133     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2134     speed_cflags='-O2'
2135     size_cflags='-Os'
2136     filter_cflags='filter_out -Wdisabled-optimization'
2137 elif $cc -v 2>&1 | grep -q Open64; then
2138     cc_type=open64
2139     cc_version=__OPEN64__
2140     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2141     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2142     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2143     speed_cflags='-O2'
2144     size_cflags='-Os'
2145     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2146 elif $cc -V 2>&1 | grep -q Portland; then
2147     cc_type=pgi
2148     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2149     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2150     opt_common='-alias=ansi -Mlre -Mpre'
2151     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2152     size_cflags="-O2 -Munroll=c:1 $opt_common"
2153     noopt_cflags="-O1"
2154     filter_cflags=pgi_flags
2155     pgi_flags(){
2156         for flag; do
2157             case $flag in
2158                 -fomit-frame-pointer) echo -Mnoframe ;;
2159                 -g)                   echo -gopt ;;
2160                 *)                    echo $flag ;;
2161             esac
2162         done
2163     }
2164 fi
2165
2166 test -n "$cc_type" && enable $cc_type ||
2167     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2168
2169 : ${as_default:=$cc}
2170 : ${dep_cc_default:=$cc}
2171 : ${ld_default:=$cc}
2172 set_default ar as dep_cc ld
2173
2174 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2175 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2176
2177 add_cflags $extra_cflags
2178 add_asflags $extra_cflags
2179
2180 if test -n "$sysroot"; then
2181     case "$cc_type" in
2182         gcc|llvm_gcc|clang)
2183             add_cppflags --sysroot="$sysroot"
2184             add_ldflags --sysroot="$sysroot"
2185         ;;
2186         tms470)
2187             add_cppflags -I"$sysinclude"
2188             add_ldflags  --sysroot="$sysroot"
2189         ;;
2190     esac
2191 fi
2192
2193 if test "$cpu" = host; then
2194     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2195
2196     case "$cc_type" in
2197         gcc|llvm_gcc)
2198             check_native(){
2199                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2200                 sed -n "/cc1.*$1=/{
2201                             s/.*$1=\\([^ ]*\\).*/\\1/
2202                             p
2203                             q
2204                         }" $TMPE
2205             }
2206             cpu=$(check_native -march || check_native -mcpu)
2207         ;;
2208     esac
2209
2210     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2211 fi
2212
2213 # Deal with common $arch aliases
2214 case "$arch" in
2215     arm*)
2216         arch="arm"
2217     ;;
2218     mips|mipsel|IP*)
2219         arch="mips"
2220     ;;
2221     mips64*)
2222         arch="mips"
2223         subarch="mips64"
2224     ;;
2225     parisc|hppa)
2226         arch="parisc"
2227     ;;
2228     parisc64|hppa64)
2229         arch="parisc"
2230         subarch="parisc64"
2231     ;;
2232     "Power Macintosh"|ppc|powerpc)
2233         arch="ppc"
2234     ;;
2235     ppc64|powerpc64)
2236         arch="ppc"
2237         subarch="ppc64"
2238     ;;
2239     s390|s390x)
2240         arch="s390"
2241     ;;
2242     sh4|sh)
2243         arch="sh4"
2244     ;;
2245     sun4u|sparc64)
2246         arch="sparc"
2247         subarch="sparc64"
2248     ;;
2249     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2250         arch="x86"
2251     ;;
2252 esac
2253
2254 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2255 enable $arch
2256
2257 # Add processor-specific flags
2258 if test "$cpu" = generic; then
2259     : do nothing
2260 elif enabled ppc; then
2261
2262     case $(tolower $cpu) in
2263         601|ppc601|powerpc601)
2264             cpuflags="-mcpu=601"
2265             disable altivec
2266         ;;
2267         603*|ppc603*|powerpc603*)
2268             cpuflags="-mcpu=603"
2269             disable altivec
2270         ;;
2271         604*|ppc604*|powerpc604*)
2272             cpuflags="-mcpu=604"
2273             disable altivec
2274         ;;
2275         g3|75*|ppc75*|powerpc75*)
2276             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2277             disable altivec
2278         ;;
2279         g4|745*|ppc745*|powerpc745*)
2280             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2281         ;;
2282         74*|ppc74*|powerpc74*)
2283             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2284         ;;
2285         g5|970|ppc970|powerpc970)
2286             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2287         ;;
2288         power[3-7]*)
2289             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2290         ;;
2291         cell)
2292             cpuflags="-mcpu=cell"
2293             enable ldbrx
2294         ;;
2295         e500v2)
2296             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2297             disable altivec
2298         ;;
2299         e500)
2300             cpuflags="-mcpu=8540 -mhard-float"
2301             disable altivec
2302         ;;
2303     esac
2304
2305 elif enabled x86; then
2306
2307     case $cpu in
2308         i[345]86|pentium)
2309             cpuflags="-march=$cpu"
2310             disable mmx
2311         ;;
2312         # targets that do NOT support conditional mov (cmov)
2313         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2314             cpuflags="-march=$cpu"
2315             disable cmov
2316         ;;
2317         # targets that do support conditional mov (cmov)
2318         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2319             cpuflags="-march=$cpu"
2320             enable cmov
2321             enable fast_cmov
2322         ;;
2323         # targets that do support conditional mov but on which it's slow
2324         pentium4|pentium4m|prescott|nocona)
2325             cpuflags="-march=$cpu"
2326             enable cmov
2327             disable fast_cmov
2328         ;;
2329     esac
2330
2331 elif enabled sparc; then
2332
2333     case $cpu in
2334         niagara)
2335             cpuflags="-mcpu=$cpu"
2336             disable vis
2337         ;;
2338         sparc64)
2339             cpuflags="-mcpu=v9"
2340         ;;
2341     esac
2342
2343 elif enabled arm; then
2344
2345     case $cpu in
2346         armv*)
2347             cpuflags="-march=$cpu"
2348             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2349         ;;
2350         *)
2351             cpuflags="-mcpu=$cpu"
2352             case $cpu in
2353                 cortex-a*)                               subarch=armv7a  ;;
2354                 cortex-r*)                               subarch=armv7r  ;;
2355                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2356                 arm11*)                                  subarch=armv6   ;;
2357                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2358                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2359             esac
2360         ;;
2361     esac
2362
2363 elif enabled alpha; then
2364
2365     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2366
2367 elif enabled bfin; then
2368
2369     cpuflags="-mcpu=$cpu"
2370
2371 elif enabled mips; then
2372
2373     cpuflags="-march=$cpu"
2374
2375 elif enabled avr32; then
2376
2377     case $cpu in
2378         ap7[02]0[0-2])
2379             subarch="avr32_ap"
2380             cpuflags="-mpart=$cpu"
2381         ;;
2382         ap)
2383             subarch="avr32_ap"
2384             cpuflags="-march=$cpu"
2385         ;;
2386         uc3[ab]*)
2387             subarch="avr32_uc"
2388             cpuflags="-mcpu=$cpu"
2389         ;;
2390         uc)
2391             subarch="avr32_uc"
2392             cpuflags="-march=$cpu"
2393         ;;
2394     esac
2395
2396 fi
2397
2398 add_cflags $cpuflags
2399 add_asflags $cpuflags
2400
2401 # compiler sanity check
2402 check_exec <<EOF
2403 int main(void){ return 0; }
2404 EOF
2405 if test "$?" != 0; then
2406     echo "$cc is unable to create an executable file."
2407     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2408         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2409         echo "Only do this if you know what cross compiling means."
2410     fi
2411     die "C compiler test failed."
2412 fi
2413
2414 add_cppflags -D_ISOC99_SOURCE
2415 check_cflags -std=c99
2416 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2417 #include <stdlib.h>
2418 EOF
2419 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2420 #include <stdlib.h>
2421 EOF
2422
2423 check_host_cflags -std=c99
2424 check_host_cflags -Wall
2425
2426 case "$arch" in
2427     alpha|ia64|mips|parisc|sparc)
2428         spic=$shared
2429     ;;
2430     x86)
2431         subarch="x86_32"
2432         check_cc <<EOF && subarch="x86_64"
2433         int test[(int)sizeof(char*) - 7];
2434 EOF
2435         if test "$subarch" = "x86_64"; then
2436             spic=$shared
2437         fi
2438     ;;
2439 esac
2440
2441 enable $subarch
2442 enabled spic && enable pic
2443
2444 # OS specific
2445 case $target_os in
2446     haiku)
2447         prefix_default="/boot/common"
2448         network_extralibs="-lnetwork"
2449         host_libs=
2450         ;;
2451     sunos)
2452         AVSERVERLDFLAGS=""
2453         SHFLAGS='-shared -Wl,-h,$$(@F)'
2454         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2455         network_extralibs="-lsocket -lnsl"
2456         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2457         # When using suncc to build, the Solaris linker will mark
2458         # an executable with each instruction set encountered by
2459         # the Solaris assembler.  As our libraries contain their own
2460         # guards for processor-specific code, instead suppress
2461         # generation of the HWCAPS ELF section on Solaris x86 only.
2462         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2463         nm_opts='-P -g'
2464         ;;
2465     netbsd)
2466         disable symver
2467         oss_indev_extralibs="-lossaudio"
2468         oss_outdev_extralibs="-lossaudio"
2469         ;;
2470     openbsd)
2471         # On OpenBSD 4.5. the compiler does not use PIC unless
2472         # explicitly using -fPIC. Libav builds fine without PIC,
2473         # however the generated executable will not do anything
2474         # (simply quits with exit-code 1, no crash, no output).
2475         # Thus explicitly enable PIC here.
2476         enable pic
2477         disable symver
2478         SHFLAGS='-shared'
2479         oss_indev_extralibs="-lossaudio"
2480         oss_outdev_extralibs="-lossaudio"
2481         ;;
2482     dragonfly)
2483         disable symver
2484         ;;
2485     freebsd)
2486         ;;
2487     bsd/os)
2488         add_extralibs -lpoll -lgnugetopt
2489         ;;
2490     darwin)
2491         gas="gas-preprocessor.pl $cc"
2492         enabled ppc && add_asflags -force_cpusubtype_ALL
2493         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2494         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2495         add_ldflags -Wl,-dynamic,-search_paths_first
2496         SLIBSUF=".dylib"
2497         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2498         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2499         AVSERVERLDFLAGS=-Wl,-bind_at_load
2500         objformat="macho"
2501         enabled x86_64 && objformat="macho64"
2502         enabled_any pic shared ||
2503             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2504         ;;
2505     mingw32*)
2506         if test $target_os = "mingw32ce"; then
2507             disable network
2508         else
2509             target_os=mingw32
2510         fi
2511         LIBTARGET=i386
2512         if enabled x86_64; then
2513             LIBTARGET="i386:x86-64"
2514         elif enabled arm; then
2515             LIBTARGET=arm-wince
2516         fi
2517         shlibdir_default="$bindir_default"
2518         SLIBPREF=""
2519         SLIBSUF=".dll"
2520         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2521         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2522         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2523         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2524         SLIB_INSTALL_LINKS=
2525         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2526         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2527         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'
2528         objformat="win32"
2529         dlltool="${cross_prefix}dlltool"
2530         enable dos_paths
2531         check_cflags -fno-common
2532         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2533                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2534                 die "ERROR: MinGW runtime version must be >= 3.15."
2535         add_cppflags -U__STRICT_ANSI__
2536         ;;
2537     cygwin*)
2538         target_os=cygwin
2539         shlibdir_default="$bindir_default"
2540         SLIBPREF="cyg"
2541         SLIBSUF=".dll"
2542         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2543         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2544         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2545         objformat="win32"
2546         enable dos_paths
2547         check_cflags -fno-common
2548         add_cppflags -U__STRICT_ANSI__
2549         ;;
2550     *-dos|freedos|opendos)
2551         network_extralibs="-lsocket"
2552         objformat="coff"
2553         enable dos_paths
2554         add_cppflags -U__STRICT_ANSI__
2555         ;;
2556     linux)
2557         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2558         enable dv1394
2559         ;;
2560     irix*)
2561         target_os=irix
2562         ranlib="echo ignoring ranlib"
2563         ;;
2564     os/2*)
2565         ln_s="cp -f"
2566         objformat="aout"
2567         add_cppflags -D_GNU_SOURCE
2568         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2569         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2570         AVSERVERLDFLAGS=""
2571         LIBSUF="_s.a"
2572         SLIBPREF=""
2573         SLIBSUF=".dll"
2574         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2575         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2576         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2577           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2578           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2579           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2580           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2581           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2582         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2583           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2584         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2585         enable dos_paths
2586         ;;
2587     gnu/kfreebsd)
2588         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2589         ;;
2590     gnu)
2591         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2592         ;;
2593     qnx)
2594         add_cppflags -D_QNX_SOURCE
2595         network_extralibs="-lsocket"
2596         ;;
2597     symbian)
2598         SLIBSUF=".dll"
2599         enable dos_paths
2600         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2601         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2602         add_ldflags -Wl,--target1-abs,--no-undefined \
2603                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2604                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2605         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2606                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2607                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2608         ;;
2609     none)
2610         ;;
2611     *)
2612         die "Unknown OS '$target_os'."
2613         ;;
2614 esac
2615
2616 esc(){
2617     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2618 }
2619
2620 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
2621
2622 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2623
2624 set_default $PATHS_LIST
2625
2626 # we need to build at least one lib type
2627 if ! enabled_any static shared; then
2628     cat <<EOF
2629 At least one library type must be built.
2630 Specify --enable-static to build the static libraries or --enable-shared to
2631 build the shared libraries as well. To only build the shared libraries specify
2632 --disable-static in addition to --enable-shared.
2633 EOF
2634     exit 1;
2635 fi
2636
2637 die_license_disabled() {
2638     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2639 }
2640
2641 die_license_disabled gpl libcdio
2642 die_license_disabled gpl libx264
2643 die_license_disabled gpl libxavs
2644 die_license_disabled gpl libxvid
2645 die_license_disabled gpl x11grab
2646
2647 die_license_disabled nonfree libfaac
2648 die_license_disabled nonfree openssl
2649
2650 die_license_disabled version3 libopencore_amrnb
2651 die_license_disabled version3 libopencore_amrwb
2652 die_license_disabled version3 libvo_aacenc
2653 die_license_disabled version3 libvo_amrwbenc
2654
2655 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2656
2657 disabled optimizations || check_cflags -fomit-frame-pointer
2658
2659 enable_pic() {
2660     enable pic
2661     add_cppflags -DPIC
2662     add_cflags   -fPIC
2663     add_asflags  -fPIC
2664 }
2665
2666 enabled pic && enable_pic
2667
2668 check_cc <<EOF || die "Symbol mangling check failed."
2669 int ff_extern;
2670 EOF
2671 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2672 extern_prefix=${sym%%ff_extern*}
2673
2674 check_cc <<EOF && enable inline_asm
2675 void foo(void) { __asm__ volatile ("" ::); }
2676 EOF
2677
2678 _restrict=
2679 for restrict_keyword in restrict __restrict__ __restrict; do
2680     check_cc <<EOF && _restrict=$restrict_keyword && break
2681 void foo(char * $restrict_keyword p);
2682 EOF
2683 done
2684
2685 check_cc <<EOF && enable attribute_packed
2686 struct { int x; } __attribute__((packed)) x;
2687 EOF
2688
2689 check_cc <<EOF && enable attribute_may_alias
2690 union { int x; } __attribute__((may_alias)) x;
2691 EOF
2692
2693 check_cc <<EOF || die "endian test failed"
2694 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2695 EOF
2696 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2697
2698 if enabled alpha; then
2699
2700     check_cflags -mieee
2701
2702 elif enabled arm; then
2703
2704     enabled thumb && check_cflags -mthumb || check_cflags -marm
2705     nogas=die
2706
2707     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2708         enable vfp_args
2709     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2710         case "${cross_prefix:-$cc}" in
2711             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2712             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2713 __asm__ (".eabi_attribute 28, 1");
2714 int main(void) { return 0; }
2715 EOF
2716         esac
2717         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2718     fi
2719
2720     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2721     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2722     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2723     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2724     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2725     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2726
2727     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2728
2729     enabled_all armv6t2 shared !pic && enable_pic
2730
2731 elif enabled mips; then
2732
2733     check_asm loongson '"dmult.g $1, $2, $3"'
2734     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2735
2736 elif enabled ppc; then
2737
2738     enable local_aligned_8 local_aligned_16
2739
2740     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2741     check_asm ibm_asm   '"add 0, 0, 0"'
2742     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2743     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2744
2745     # AltiVec flags: The FSF version of GCC differs from the Apple version
2746     if enabled altivec; then
2747         nogas=warn
2748         check_cflags -maltivec -mabi=altivec &&
2749         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2750         check_cflags -faltivec
2751
2752         # check if our compiler supports Motorola AltiVec C API
2753         check_cc <<EOF || disable altivec
2754 $inc_altivec_h
2755 int main(void) {
2756     vector signed int v1, v2, v3;
2757     v1 = vec_add(v2,v3);
2758     return 0;
2759 }
2760 EOF
2761
2762         # check if our compiler supports braces for vector declarations
2763         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2764 $inc_altivec_h
2765 int main (void) { (vector int) {1}; return 0; }
2766 EOF
2767     fi
2768
2769 elif enabled sparc; then
2770
2771     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2772         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2773
2774 elif enabled x86; then
2775
2776     enable local_aligned_8 local_aligned_16
2777
2778     # check whether EBP is available on x86
2779     # As 'i' is stored on the stack, this program will crash
2780     # if the base pointer is used to access it because the
2781     # base pointer is cleared in the inline assembly code.
2782     check_exec_crash <<EOF && enable ebp_available
2783     volatile int i=0;
2784     __asm__ volatile (
2785         "xorl %%ebp, %%ebp"
2786     ::: "%ebp");
2787     return i;
2788 EOF
2789
2790     # check whether EBX is available on x86
2791     check_asm ebx_available '""::"b"(0)' &&
2792         check_asm ebx_available '"":::"%ebx"'
2793
2794     # check whether xmm clobbers are supported
2795     check_asm xmm_clobbers '"":::"%xmm0"'
2796
2797     # check whether binutils is new enough to compile SSSE3/MMX2
2798     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2799     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2800
2801     if ! disabled_any asm mmx yasm; then
2802         if check_cmd $yasmexe --version; then
2803             enabled x86_64 && yasm_extra="-m amd64"
2804             yasm_debug="-g dwarf2"
2805         elif check_cmd nasm -v; then
2806             yasmexe=nasm
2807             yasm_debug="-g -F dwarf"
2808             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2809         fi
2810
2811         YASMFLAGS="-f $objformat $yasm_extra"
2812         enabled pic               && append YASMFLAGS "-DPIC"
2813         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2814         case "$objformat" in
2815             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2816         esac
2817
2818         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2819             die "yasm not found, use --disable-yasm for a crippled build"
2820         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2821     fi
2822
2823     case "$cpu" in
2824         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2825             disable fast_clz
2826         ;;
2827     esac
2828
2829 fi
2830
2831 if enabled asm; then
2832     as=${gas:=$as}
2833     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2834         $nogas "GNU assembler not found, install gas-preprocessor"
2835 fi
2836
2837 check_ldflags -Wl,--as-needed
2838
2839 if check_func dlopen; then
2840     ldl=
2841 elif check_func dlopen -ldl; then
2842     ldl=-ldl
2843 fi
2844
2845 if enabled network; then
2846     check_type "sys/types.h sys/socket.h" socklen_t
2847     check_type netdb.h "struct addrinfo"
2848     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2849     check_type netinet/in.h "struct sockaddr_in6"
2850     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2851     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2852     check_header netinet/sctp.h
2853     # Prefer arpa/inet.h over winsock2
2854     if check_header arpa/inet.h ; then
2855         check_func closesocket
2856     elif check_header winsock2.h ; then
2857         check_func_headers winsock2.h closesocket -lws2 && \
2858             network_extralibs="-lws2" || \
2859         { check_func_headers winsock2.h closesocket -lws2_32 && \
2860             network_extralibs="-lws2_32"; }
2861         check_type ws2tcpip.h socklen_t
2862         check_type ws2tcpip.h "struct addrinfo"
2863         check_type ws2tcpip.h "struct ipv6_mreq"
2864         check_type ws2tcpip.h "struct sockaddr_in6"
2865         check_type ws2tcpip.h "struct sockaddr_storage"
2866         check_struct winsock2.h "struct sockaddr" sa_len
2867     else
2868         disable network
2869     fi
2870 fi
2871
2872 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2873 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2874
2875 check_func  fcntl
2876 check_func  fork
2877 check_func  getaddrinfo $network_extralibs
2878 check_func  gethrtime
2879 check_func  getrusage
2880 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2881 check_func  inet_aton $network_extralibs
2882 check_func  isatty
2883 check_func  localtime_r
2884 check_func  ${malloc_prefix}memalign            && enable memalign
2885 check_func  mkstemp
2886 check_func  mmap
2887 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2888 check_func  setrlimit
2889 check_func  strerror_r
2890 check_func  strptime
2891 check_func  strtok_r
2892 check_func  sched_getaffinity
2893 check_func  sysconf
2894 check_func  sysctl
2895 check_func_headers io.h setmode
2896 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2897 check_func_headers windows.h GetProcessAffinityMask
2898 check_func_headers windows.h GetProcessTimes
2899 check_func_headers windows.h MapViewOfFile
2900 check_func_headers windows.h VirtualAlloc
2901
2902 check_header dlfcn.h
2903 check_header dxva2api.h
2904 check_header malloc.h
2905 check_header poll.h
2906 check_header sys/mman.h
2907 check_header sys/param.h
2908 check_header sys/resource.h
2909 check_header sys/select.h
2910 check_header vdpau/vdpau.h
2911 check_header vdpau/vdpau_x11.h
2912 check_header X11/extensions/XvMClib.h
2913
2914 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2915 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2916
2917 if ! disabled w32threads && ! enabled pthreads; then
2918     check_func _beginthreadex && enable w32threads
2919 fi
2920
2921 # check for some common methods of building with pthread support
2922 # do this before the optional library checks as some of them require pthreads
2923 if ! disabled pthreads && ! enabled w32threads; then
2924     enable pthreads
2925     if check_func pthread_create; then
2926         :
2927     elif check_func pthread_create -pthread; then
2928         add_cflags -pthread
2929         add_extralibs -pthread
2930     elif check_func pthread_create -pthreads; then
2931         add_cflags -pthreads
2932         add_extralibs -pthreads
2933     elif check_func pthread_create -lpthreadGC2; then
2934         add_extralibs -lpthreadGC2
2935     elif ! check_lib pthread.h pthread_create -lpthread; then
2936         disable pthreads
2937     fi
2938 fi
2939
2940 for thread in $THREADS_LIST; do
2941     if enabled $thread; then
2942         test -n "$thread_type" &&
2943             die "ERROR: Only one thread type must be selected." ||
2944             thread_type="$thread"
2945     fi
2946 done
2947
2948 check_lib math.h sin -lm && LIBM="-lm"
2949 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2950
2951 check_mathfunc exp2
2952 check_mathfunc exp2f
2953 check_mathfunc llrint
2954 check_mathfunc llrintf
2955 check_mathfunc log2
2956 check_mathfunc log2f
2957 check_mathfunc lrint
2958 check_mathfunc lrintf
2959 check_mathfunc round
2960 check_mathfunc roundf
2961 check_mathfunc trunc
2962 check_mathfunc truncf
2963
2964 # these are off by default, so fail if requested and not available
2965 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2966 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2967 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2968 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2969 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2970 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2971 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2972 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2973 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2974 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2975 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2976 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2977 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2978 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2979 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2980 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2981 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2982 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2983 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2984 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2985 enabled libvpx     && {
2986     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2987                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2988     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2989                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2990 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2991                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2992                         die "ERROR: libx264 version must be >= 0.118."; }
2993 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2994 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2995 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2996                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2997                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2998                         die "ERROR: openssl not found"; }
2999
3000 # libdc1394 check
3001 if enabled libdc1394; then
3002     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3003         enable libdc1394_2; } ||
3004     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3005         enable libdc1394_1; } ||
3006     die "ERROR: No version of libdc1394 found "
3007 fi
3008
3009 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3010     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3011     enable sdl &&
3012     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3013 fi
3014
3015 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3016
3017 check_header linux/fb.h
3018 check_header linux/videodev2.h
3019 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3020
3021 check_header sys/videoio.h
3022
3023 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3024 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3025 # w32api 3.12 had it defined wrong
3026 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3027
3028 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3029 { check_header dev/bktr/ioctl_meteor.h &&
3030   check_header dev/bktr/ioctl_bt848.h; } ||
3031 { check_header machine/ioctl_meteor.h &&
3032   check_header machine/ioctl_bt848.h; } ||
3033 { check_header dev/video/meteor/ioctl_meteor.h &&
3034   check_header dev/video/bktr/ioctl_bt848.h; } ||
3035 check_header dev/ic/bt8xx.h
3036
3037 check_header sndio.h
3038 check_header sys/soundcard.h
3039 check_header soundcard.h
3040
3041 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3042
3043 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3044
3045 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3046
3047 enabled libcdio &&
3048     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3049
3050 enabled x11grab                                           &&
3051 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3052 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3053 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3054
3055 # check for VDA header
3056 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3057     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3058 fi
3059
3060 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3061 check_cpp_condition \
3062     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3063     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3064       disable vdpau; }
3065 fi
3066
3067 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3068
3069 # add some useful compiler flags if supported
3070 check_cflags -Wdeclaration-after-statement
3071 check_cflags -Wall
3072 check_cflags -Wno-parentheses
3073 check_cflags -Wno-switch
3074 check_cflags -Wno-format-zero-length
3075 check_cflags -Wdisabled-optimization
3076 check_cflags -Wpointer-arith
3077 check_cflags -Wredundant-decls
3078 check_cflags -Wno-pointer-sign
3079 check_cflags -Wcast-qual
3080 check_cflags -Wwrite-strings
3081 check_cflags -Wtype-limits
3082 check_cflags -Wundef
3083 check_cflags -Wmissing-prototypes
3084 check_cflags -Wstrict-prototypes
3085 enabled extra_warnings && check_cflags -Winline
3086
3087 # add some linker flags
3088 check_ldflags -Wl,--warn-common
3089 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3090 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3091
3092 enabled xmm_clobber_test &&                             \
3093     check_ldflags -Wl,--wrap,avcodec_open2              \
3094                   -Wl,--wrap,avcodec_decode_audio4      \
3095                   -Wl,--wrap,avcodec_decode_video2      \
3096                   -Wl,--wrap,avcodec_decode_subtitle2   \
3097                   -Wl,--wrap,avcodec_encode_audio2      \
3098                   -Wl,--wrap,avcodec_encode_video       \
3099                   -Wl,--wrap,avcodec_encode_subtitle    \
3100                   -Wl,--wrap,sws_scale ||               \
3101     disable xmm_clobber_test
3102
3103 echo "X{};" > $TMPV
3104 if test_ldflags -Wl,--version-script,$TMPV; then
3105     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3106     check_cc <<EOF && enable symver_asm_label
3107 void ff_foo(void) __asm__ ("av_foo@VERSION");
3108 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3109 EOF
3110     check_cc <<EOF && enable symver_gnu_asm
3111 __asm__(".symver ff_foo,av_foo@VERSION");
3112 void ff_foo(void) {}
3113 EOF
3114 fi
3115
3116 if [ -n "$optflags" ]; then
3117     add_cflags $optflags
3118 elif enabled small; then
3119     add_cflags $size_cflags
3120 elif enabled optimizations; then
3121     add_cflags $speed_cflags
3122 else
3123     add_cflags $noopt_cflags
3124 fi
3125 check_cflags -fno-math-errno
3126 check_cflags -fno-signed-zeros
3127
3128 if enabled icc; then
3129     # Just warnings, no remarks
3130     check_cflags -w1
3131     # -wd: Disable following warnings
3132     # 144, 167, 556: -Wno-pointer-sign
3133     # 1292: attribute "foo" ignored
3134     # 1419: external declaration in primary source file
3135     # 10006: ignoring unknown option -fno-signed-zeros
3136     # 10148: ignoring unknown option -Wno-parentheses
3137     # 10156: ignoring option '-W'; no argument required
3138     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3139     # 11030: Warning unknown option --as-needed
3140     # 10156: ignoring option '-export'; no argument required
3141     check_ldflags -wd10156,11030
3142     # Allow to compile with optimizations
3143     check_ldflags -march=$cpu
3144     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3145     enable ebp_available
3146     if enabled x86_32; then
3147         test ${icc_version%%.*} -ge 11 && \
3148             check_cflags -falign-stack=maintain-16-byte || \
3149             disable aligned_stack
3150     fi
3151 elif enabled ccc; then
3152     # disable some annoying warnings
3153     add_cflags -msg_disable cvtu32to64
3154     add_cflags -msg_disable embedcomment
3155     add_cflags -msg_disable needconstext
3156     add_cflags -msg_disable nomainieee
3157     add_cflags -msg_disable ptrmismatch1
3158     add_cflags -msg_disable unreachcode
3159 elif enabled gcc; then
3160     check_cflags -fno-tree-vectorize
3161     check_cflags -Werror=implicit-function-declaration
3162     check_cflags -Werror=missing-prototypes
3163     check_cflags -Werror=declaration-after-statement
3164 elif enabled llvm_gcc; then
3165     check_cflags -mllvm -stack-alignment=16
3166 elif enabled clang; then
3167     check_cflags -mllvm -stack-alignment=16
3168     check_cflags -Qunused-arguments
3169 elif enabled armcc; then
3170     # 2523: use of inline assembler is deprecated
3171     add_cflags -W${armcc_opt},--diag_suppress=2523
3172     add_cflags -W${armcc_opt},--diag_suppress=1207
3173     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3174     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3175     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3176     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3177 elif enabled tms470; then
3178     add_cflags -pds=824 -pds=837
3179 elif enabled pathscale; then
3180     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3181 fi
3182
3183 enabled_any $THREADS_LIST      && enable threads
3184
3185 check_deps $CONFIG_LIST       \
3186            $CONFIG_EXTRA      \
3187            $HAVE_LIST         \
3188            $ALL_COMPONENTS    \
3189            $ALL_TESTS         \
3190
3191 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3192
3193 ! enabled_any memalign posix_memalign &&
3194     enabled_any $need_memalign && enable memalign_hack
3195
3196 echo "install prefix            $prefix"
3197 echo "source path               $source_path"
3198 echo "C compiler                $cc"
3199 echo "ARCH                      $arch ($cpu)"
3200 if test "$build_suffix" != ""; then
3201     echo "build suffix              $build_suffix"
3202 fi
3203 if test "$extra_version" != ""; then
3204     echo "version string suffix     $extra_version"
3205 fi
3206 echo "big-endian                ${bigendian-no}"
3207 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3208 if enabled x86; then
3209     echo "${yasmexe}                      ${yasm-no}"
3210     echo "MMX enabled               ${mmx-no}"
3211     echo "MMX2 enabled              ${mmx2-no}"
3212     echo "3DNow! enabled            ${amd3dnow-no}"
3213     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3214     echo "SSE enabled               ${sse-no}"
3215     echo "SSSE3 enabled             ${ssse3-no}"
3216     echo "AVX enabled               ${avx-no}"
3217     echo "CMOV enabled              ${cmov-no}"
3218     echo "CMOV is fast              ${fast_cmov-no}"
3219     echo "EBX available             ${ebx_available-no}"
3220     echo "EBP available             ${ebp_available-no}"
3221 fi
3222 if enabled arm; then
3223     echo "ARMv5TE enabled           ${armv5te-no}"
3224     echo "ARMv6 enabled             ${armv6-no}"
3225     echo "ARMv6T2 enabled           ${armv6t2-no}"
3226     echo "ARM VFP enabled           ${armvfp-no}"
3227     echo "NEON enabled              ${neon-no}"
3228 fi
3229 if enabled mips; then
3230     echo "MMI enabled               ${mmi-no}"
3231 fi
3232 if enabled ppc; then
3233     echo "AltiVec enabled           ${altivec-no}"
3234     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3235     echo "dcbzl available           ${dcbzl-no}"
3236 fi
3237 if enabled sparc; then
3238     echo "VIS enabled               ${vis-no}"
3239 fi
3240 echo "debug symbols             ${debug-no}"
3241 echo "optimize for size         ${small-no}"
3242 echo "optimizations             ${optimizations-no}"
3243 echo "static                    ${static-no}"
3244 echo "shared                    ${shared-no}"
3245 echo "new filter support        ${avfilter-no}"
3246 echo "network support           ${network-no}"
3247 echo "threading support         ${thread_type-no}"
3248 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3249 echo "SDL support               ${sdl-no}"
3250 echo "libdxva2 enabled          ${dxva2-no}"
3251 echo "libva enabled             ${vaapi-no}"
3252 echo "libvdpau enabled          ${vdpau-no}"
3253 echo "AVISynth enabled          ${avisynth-no}"
3254 echo "frei0r enabled            ${frei0r-no}"
3255 echo "gnutls enabled            ${gnutls-no}"
3256 echo "libcdio support           ${libcdio-no}"
3257 echo "libdc1394 support         ${libdc1394-no}"
3258 echo "libfaac enabled           ${libfaac-no}"
3259 echo "libgsm enabled            ${libgsm-no}"
3260 echo "libmp3lame enabled        ${libmp3lame-no}"
3261 echo "libnut enabled            ${libnut-no}"
3262 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3263 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3264 echo "libopencv support         ${libopencv-no}"
3265 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3266 echo "libpulse enabled          ${libpulse-no}"
3267 echo "librtmp enabled           ${librtmp-no}"
3268 echo "libschroedinger enabled   ${libschroedinger-no}"
3269 echo "libspeex enabled          ${libspeex-no}"
3270 echo "libtheora enabled         ${libtheora-no}"
3271 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3272 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3273 echo "libvorbis enabled         ${libvorbis-no}"
3274 echo "libvpx enabled            ${libvpx-no}"
3275 echo "libx264 enabled           ${libx264-no}"
3276 echo "libxavs enabled           ${libxavs-no}"
3277 echo "libxvid enabled           ${libxvid-no}"
3278 echo "openssl enabled           ${openssl-no}"
3279 echo "zlib enabled              ${zlib-no}"
3280 echo "bzlib enabled             ${bzlib-no}"
3281 echo
3282
3283 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3284     echo "Enabled ${type}s:"
3285     eval list=\$$(toupper $type)_LIST
3286     print_enabled '_*' $list | sort | pr -r -3 -t
3287     echo
3288 done
3289
3290 license="LGPL version 2.1 or later"
3291 if enabled nonfree; then
3292     license="nonfree and unredistributable"
3293 elif enabled gplv3; then
3294     license="GPL version 3 or later"
3295 elif enabled lgplv3; then
3296     license="LGPL version 3 or later"
3297 elif enabled gpl; then
3298     license="GPL version 2 or later"
3299 fi
3300
3301 echo "License: $license"
3302
3303 echo "Creating config.mak and config.h..."
3304
3305 test -e Makefile || $ln_s "$source_path/Makefile" .
3306
3307 config_files="$TMPH config.mak"
3308
3309 cat > config.mak <<EOF
3310 # Automatically generated by configure - do not modify!
3311 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3312 prefix=$prefix
3313 LIBDIR=\$(DESTDIR)$libdir
3314 SHLIBDIR=\$(DESTDIR)$shlibdir
3315 INCDIR=\$(DESTDIR)$incdir
3316 BINDIR=\$(DESTDIR)$bindir
3317 DATADIR=\$(DESTDIR)$datadir
3318 MANDIR=\$(DESTDIR)$mandir
3319 SRC_PATH=$source_path
3320 CC_IDENT=$cc_ident
3321 ARCH=$arch
3322 CC=$cc
3323 AS=$as
3324 LD=$ld
3325 DEPCC=$dep_cc
3326 YASM=$yasmexe
3327 YASMDEP=$yasmexe
3328 AR=$ar
3329 RANLIB=$ranlib
3330 LN_S=$ln_s
3331 CPPFLAGS=$CPPFLAGS
3332 CFLAGS=$CFLAGS
3333 ASFLAGS=$ASFLAGS
3334 AS_O=$CC_O
3335 CC_O=$CC_O
3336 DLLTOOL=$dlltool
3337 LDFLAGS=$LDFLAGS
3338 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3339 SHFLAGS=$SHFLAGS
3340 YASMFLAGS=$YASMFLAGS
3341 BUILDSUF=$build_suffix
3342 FULLNAME=$FULLNAME
3343 LIBPREF=$LIBPREF
3344 LIBSUF=$LIBSUF
3345 LIBNAME=$LIBNAME
3346 SLIBPREF=$SLIBPREF
3347 SLIBSUF=$SLIBSUF
3348 EXESUF=$EXESUF
3349 EXTRA_VERSION=$extra_version
3350 DEPFLAGS=$DEPFLAGS
3351 CCDEP=$CCDEP
3352 ASDEP=$ASDEP
3353 CC_DEPFLAGS=$CC_DEPFLAGS
3354 AS_DEPFLAGS=$AS_DEPFLAGS
3355 HOSTCC=$host_cc
3356 HOSTCFLAGS=$host_cflags
3357 HOSTEXESUF=$HOSTEXESUF
3358 HOSTLDFLAGS=$host_ldflags
3359 HOSTLIBS=$host_libs
3360 TARGET_EXEC=$target_exec
3361 TARGET_PATH=$target_path
3362 SDL_LIBS=$sdl_libs
3363 SDL_CFLAGS=$sdl_cflags
3364 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3365 EXTRALIBS=$extralibs
3366 INSTALL=install
3367 LIBTARGET=${LIBTARGET}
3368 SLIBNAME=${SLIBNAME}
3369 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3370 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3371 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3372 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3373 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3374 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3375 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3376 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3377 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3378 EOF
3379
3380 get_version(){
3381     name=$1
3382     file=$source_path/$2
3383     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3384     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3385     lcname=$(tolower $name)
3386     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3387     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3388 }
3389
3390 get_version LIBAVCODEC  libavcodec/version.h
3391 get_version LIBAVDEVICE libavdevice/avdevice.h
3392 get_version LIBAVFILTER libavfilter/version.h
3393 get_version LIBAVFORMAT libavformat/version.h
3394 get_version LIBAVRESAMPLE libavresample/version.h
3395 get_version LIBAVUTIL   libavutil/avutil.h
3396 get_version LIBSWSCALE  libswscale/swscale.h
3397
3398 cat > $TMPH <<EOF
3399 /* Automatically generated by configure - do not modify! */
3400 #ifndef LIBAV_CONFIG_H
3401 #define LIBAV_CONFIG_H
3402 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3403 #define LIBAV_LICENSE "$(c_escape $license)"
3404 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3405 #define CC_TYPE "$cc_type"
3406 #define CC_VERSION $cc_version
3407 #define restrict $_restrict
3408 #define EXTERN_PREFIX "${extern_prefix}"
3409 #define EXTERN_ASM ${extern_prefix}
3410 #define SLIBSUF "$SLIBSUF"
3411 EOF
3412
3413 test -n "$malloc_prefix" &&
3414     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3415
3416 if enabled small || disabled optimizations; then
3417     echo "#undef  av_always_inline"  >> $TMPH
3418     if enabled small; then
3419         echo "#define av_always_inline inline"  >> $TMPH
3420     else
3421         echo "#define av_always_inline av_unused"  >> $TMPH
3422     fi
3423 fi
3424
3425 if enabled yasm; then
3426     append config_files $TMPASM
3427     printf '' >$TMPASM
3428 fi
3429
3430 print_config ARCH_   "$config_files" $ARCH_LIST
3431 print_config HAVE_   "$config_files" $HAVE_LIST
3432 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3433                                      $CONFIG_EXTRA      \
3434                                      $ALL_COMPONENTS    \
3435
3436 cat >>config.mak <<EOF
3437 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3438 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3439 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3440 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3441 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3442 EOF
3443
3444 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3445
3446 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3447 cp_if_changed $TMPH config.h
3448 touch .config
3449
3450 enabled yasm && cp_if_changed $TMPASM config.asm
3451
3452 cat > $TMPH <<EOF
3453 /* Generated by ffconf */
3454 #ifndef AVUTIL_AVCONFIG_H
3455 #define AVUTIL_AVCONFIG_H
3456 EOF
3457
3458 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3459
3460 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3461
3462 cp_if_changed $TMPH libavutil/avconfig.h
3463
3464 test -n "$WARNINGS" && printf "\n$WARNINGS"
3465
3466 # build pkg-config files
3467
3468 pkgconfig_generate(){
3469 name=$1
3470 shortname=${name#lib}${build_suffix}
3471 comment=$2
3472 version=$3
3473 libs=$4
3474 requires=$5
3475 enabled ${name#lib} || return 0
3476 mkdir -p $name
3477 cat <<EOF > $name/$name.pc
3478 prefix=$prefix
3479 exec_prefix=\${prefix}
3480 libdir=$libdir
3481 includedir=$incdir
3482
3483 Name: $name
3484 Description: $comment
3485 Version: $version
3486 Requires: $(enabled shared || echo $requires)
3487 Requires.private: $(enabled shared && echo $requires)
3488 Conflicts:
3489 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3490 Libs.private: $(enabled shared && echo $libs)
3491 Cflags: -I\${includedir}
3492 EOF
3493 cat <<EOF > $name/$name-uninstalled.pc
3494 prefix=
3495 exec_prefix=
3496 libdir=\${pcfiledir}
3497 includedir=${source_path}
3498
3499 Name: $name
3500 Description: $comment
3501 Version: $version
3502 Requires: $requires
3503 Conflicts:
3504 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3505 Cflags: -I\${includedir}
3506 EOF
3507 }
3508
3509 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3510 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3511 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3512 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3513 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3514 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
3515 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"