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-pthreads       disable pthreads [auto]
 114   --disable-w32threads     disable Win32 threads [auto]
 115   --enable-x11grab         enable X11 grabbing [no]
 116   --disable-network        disable network support [no]
 117   --disable-dct            disable DCT code
 118   --disable-mdct           disable MDCT code
 119   --disable-rdft           disable RDFT code
 120   --disable-fft            disable FFT code
 121   --enable-dxva2           enable DXVA2 code
 122   --enable-vaapi           enable VAAPI code
 123   --enable-vda             enable VDA code
 124   --enable-vdpau           enable VDPAU code
 125
 126 Individual component options:
 127   --disable-everything     disable all components listed below
 128   --disable-encoder=NAME   disable encoder NAME
 129   --enable-encoder=NAME    enable encoder NAME
 130   --disable-encoders       disable all encoders
 131   --disable-decoder=NAME   disable decoder NAME
 132   --enable-decoder=NAME    enable decoder NAME
 133   --disable-decoders       disable all decoders
 134   --disable-hwaccel=NAME   disable hwaccel NAME
 135   --enable-hwaccel=NAME    enable hwaccel NAME
 136   --disable-hwaccels       disable all hwaccels
 137   --disable-muxer=NAME     disable muxer NAME
 138   --enable-muxer=NAME      enable muxer NAME
 139   --disable-muxers         disable all muxers
 140   --disable-demuxer=NAME   disable demuxer NAME
 141   --enable-demuxer=NAME    enable demuxer NAME
 142   --disable-demuxers       disable all demuxers
 143   --enable-parser=NAME     enable parser NAME
 144   --disable-parser=NAME    disable parser NAME
 145   --disable-parsers        disable all parsers
 146   --enable-bsf=NAME        enable bitstream filter NAME
 147   --disable-bsf=NAME       disable bitstream filter NAME
 148   --disable-bsfs           disable all bitstream filters
 149   --enable-protocol=NAME   enable protocol NAME
 150   --disable-protocol=NAME  disable protocol NAME
 151   --disable-protocols      disable all protocols
 152   --enable-indev=NAME      enable input device NAME
 153   --disable-indev=NAME     disable input device NAME
 154   --disable-indevs         disable input devices
 155   --enable-outdev=NAME     enable output device NAME
 156   --disable-outdev=NAME    disable output device NAME
 157   --disable-outdevs        disable output devices
 158   --disable-devices        disable all devices
 159   --enable-filter=NAME     enable filter NAME
 160   --disable-filter=NAME    disable filter NAME
 161   --disable-filters        disable all filters
 162
 163 External library support:
 164   --enable-avisynth        enable reading of AVISynth script files [no]
 165   --enable-bzlib           enable bzlib [autodetect]
 166   --enable-frei0r          enable frei0r video filtering
 167   --enable-gnutls          enable gnutls [no]
 168   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 169   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 170   --enable-libopencv       enable video filtering via libopencv [no]
 171   --enable-libcdio         enable audio CD grabbing with libcdio
 172   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 173                            and libraw1394 [no]
 174   --enable-libdirac        enable Dirac support via libdirac [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     avisynth
 932     bzlib
 933     dct
 934     doc
 935     dwt
 936     dxva2
 937     fastdiv
 938     fft
 939     frei0r
 940     gnutls
 941     gpl
 942     gray
 943     hardcoded_tables
 944     libcdio
 945     libdc1394
 946     libdirac
 947     libfaac
 948     libfreetype
 949     libgsm
 950     libmp3lame
 951     libnut
 952     libopencore_amrnb
 953     libopencore_amrwb
 954     libopencv
 955     libopenjpeg
 956     libpulse
 957     librtmp
 958     libschroedinger
 959     libspeex
 960     libtheora
 961     libvo_aacenc
 962     libvo_amrwbenc
 963     libvorbis
 964     libvpx
 965     libx264
 966     libxavs
 967     libxvid
 968     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     poll_h
1114     posix_memalign
1115     round
1116     roundf
1117     sched_getaffinity
1118     sdl
1119     sdl_video_size
1120     setmode
1121     setrlimit
1122     sndio_h
1123     socklen_t
1124     soundcard_h
1125     strerror_r
1126     strptime
1127     strtok_r
1128     struct_addrinfo
1129     struct_ipv6_mreq
1130     struct_rusage_ru_maxrss
1131     struct_sockaddr_in6
1132     struct_sockaddr_sa_len
1133     struct_sockaddr_storage
1134     struct_v4l2_frmivalenum_discrete
1135     symver
1136     symver_asm_label
1137     symver_gnu_asm
1138     sysconf
1139     sysctl
1140     sys_mman_h
1141     sys_param_h
1142     sys_resource_h
1143     sys_select_h
1144     sys_soundcard_h
1145     sys_videoio_h
1146     threads
1147     trunc
1148     truncf
1149     vfp_args
1150     VirtualAlloc
1151     winsock2_h
1152     xform_asm
1153     xmm_clobbers
1154     yasm
1155 "
1156
1157 # options emitted with CONFIG_ prefix but not available on command line
1158 CONFIG_EXTRA="
1159     aandct
1160     avutil
1161     golomb
1162     gplv3
1163     h264chroma
1164     h264dsp
1165     h264pred
1166     h264qpel
1167     huffman
1168     lgplv3
1169     lpc
1170 "
1171
1172 CMDLINE_SELECT="
1173     $ARCH_EXT_LIST
1174     $CONFIG_LIST
1175     $THREADS_LIST
1176     asm
1177     cross_compile
1178     debug
1179     extra_warnings
1180     logging
1181     optimizations
1182     symver
1183     yasm
1184 "
1185
1186 PATHS_LIST='
1187     bindir
1188     datadir
1189     incdir
1190     libdir
1191     mandir
1192     prefix
1193     shlibdir
1194 '
1195
1196 CMDLINE_SET="
1197     $PATHS_LIST
1198     ar
1199     arch
1200     as
1201     build_suffix
1202     cc
1203     cpu
1204     cross_prefix
1205     dep_cc
1206     extra_version
1207     host_cc
1208     host_cflags
1209     host_ldflags
1210     host_libs
1211     host_os
1212     ld
1213     logfile
1214     malloc_prefix
1215     nm
1216     optflags
1217     pkg_config
1218     samples
1219     sysinclude
1220     sysroot
1221     target_exec
1222     target_os
1223     target_path
1224 "
1225
1226 CMDLINE_APPEND="
1227     extra_cflags
1228 "
1229
1230 # code dependency declarations
1231
1232 # architecture extensions
1233
1234 armv5te_deps="arm"
1235 armv6_deps="arm"
1236 armv6t2_deps="arm"
1237 armvfp_deps="arm"
1238 neon_deps="arm"
1239 vfpv3_deps="armvfp"
1240
1241 mmi_deps="mips"
1242
1243 altivec_deps="ppc"
1244 ppc4xx_deps="ppc"
1245
1246 vis_deps="sparc"
1247
1248 x86_64_suggest="cmov fast_cmov"
1249 amd3dnow_deps="mmx"
1250 amd3dnowext_deps="amd3dnow"
1251 mmx_deps="x86"
1252 mmx2_deps="mmx"
1253 sse_deps="mmx"
1254 ssse3_deps="sse"
1255 avx_deps="ssse3"
1256
1257 aligned_stack_if_any="ppc x86"
1258 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1259 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1260 fast_unaligned_if_any="armv6 ppc x86"
1261
1262 inline_asm_deps="!tms470"
1263 need_memalign="altivec neon sse"
1264
1265 symver_if_any="symver_asm_label symver_gnu_asm"
1266
1267 # subsystems
1268 dct_select="rdft"
1269 mdct_select="fft"
1270 rdft_select="fft"
1271 mpegaudiodsp_select="dct"
1272
1273 # decoders / encoders / hardware accelerators
1274 aac_decoder_select="mdct sinewin"
1275 aac_encoder_select="mdct sinewin"
1276 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1277 ac3_decoder_select="mdct ac3dsp ac3_parser"
1278 ac3_encoder_select="mdct ac3dsp"
1279 ac3_fixed_encoder_select="mdct ac3dsp"
1280 alac_encoder_select="lpc"
1281 amrnb_decoder_select="lsp"
1282 amrwb_decoder_select="lsp"
1283 atrac1_decoder_select="mdct sinewin"
1284 atrac3_decoder_select="mdct"
1285 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1286 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1287 cavs_decoder_select="golomb"
1288 cook_decoder_select="mdct sinewin"
1289 cscd_decoder_suggest="zlib"
1290 dca_decoder_select="mdct"
1291 dnxhd_encoder_select="aandct"
1292 dxa_decoder_select="zlib"
1293 eac3_decoder_select="ac3_decoder"
1294 eac3_encoder_select="mdct ac3dsp"
1295 eamad_decoder_select="aandct"
1296 eatgq_decoder_select="aandct"
1297 eatqi_decoder_select="aandct"
1298 ffv1_decoder_select="golomb"
1299 flac_decoder_select="golomb"
1300 flac_encoder_select="golomb lpc"
1301 flashsv_decoder_select="zlib"
1302 flashsv_encoder_select="zlib"
1303 flashsv2_decoder_select="zlib"
1304 flv_decoder_select="h263_decoder"
1305 flv_encoder_select="h263_encoder"
1306 fraps_decoder_select="huffman"
1307 h261_encoder_select="aandct"
1308 h263_decoder_select="h263_parser"
1309 h263_encoder_select="aandct"
1310 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1311 h263i_decoder_select="h263_decoder"
1312 h263p_encoder_select="h263_encoder"
1313 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1314 h264_dxva2_hwaccel_deps="dxva2api_h"
1315 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1316 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1317 h264_vda_hwaccel_select="vda h264_decoder"
1318 h264_vdpau_decoder_select="vdpau h264_decoder"
1319 imc_decoder_select="fft mdct sinewin"
1320 jpegls_decoder_select="golomb"
1321 jpegls_encoder_select="golomb"
1322 ljpeg_encoder_select="aandct"
1323 loco_decoder_select="golomb"
1324 mjpeg_encoder_select="aandct"
1325 mlp_decoder_select="mlp_parser"
1326 mp1_decoder_select="mpegaudiodsp"
1327 mp1float_decoder_select="mpegaudiodsp"
1328 mp2_decoder_select="mpegaudiodsp"
1329 mp2float_decoder_select="mpegaudiodsp"
1330 mp3_decoder_select="mpegaudiodsp"
1331 mp3adu_decoder_select="mpegaudiodsp"
1332 mp3adufloat_decoder_select="mpegaudiodsp"
1333 mp3float_decoder_select="mpegaudiodsp"
1334 mp3on4_decoder_select="mpegaudiodsp"
1335 mp3on4float_decoder_select="mpegaudiodsp"
1336 mpc7_decoder_select="mpegaudiodsp"
1337 mpc8_decoder_select="mpegaudiodsp"
1338 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1339 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1340 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1341 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1342 mpeg1video_encoder_select="aandct"
1343 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1344 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1345 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1346 mpeg2video_encoder_select="aandct"
1347 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1348 mpeg4_encoder_select="h263_encoder"
1349 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1350 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1351 msmpeg4v1_decoder_select="h263_decoder"
1352 msmpeg4v1_encoder_select="h263_encoder"
1353 msmpeg4v2_decoder_select="h263_decoder"
1354 msmpeg4v2_encoder_select="h263_encoder"
1355 msmpeg4v3_decoder_select="h263_decoder"
1356 msmpeg4v3_encoder_select="h263_encoder"
1357 nellymoser_decoder_select="mdct sinewin"
1358 nellymoser_encoder_select="mdct sinewin"
1359 png_decoder_select="zlib"
1360 png_encoder_select="zlib"
1361 qcelp_decoder_select="lsp"
1362 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1363 ra_144_encoder_select="lpc"
1364 ralf_decoder_select="golomb"
1365 rv10_decoder_select="h263_decoder"
1366 rv10_encoder_select="h263_encoder"
1367 rv20_decoder_select="h263_decoder"
1368 rv20_encoder_select="h263_encoder"
1369 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1370 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1371 shorten_decoder_select="golomb"
1372 sipr_decoder_select="lsp"
1373 snow_decoder_select="dwt"
1374 snow_encoder_select="aandct dwt"
1375 svq1_encoder_select="aandct"
1376 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1377 svq3_decoder_suggest="zlib"
1378 theora_decoder_select="vp3_decoder"
1379 tiff_decoder_suggest="zlib"
1380 tiff_encoder_suggest="zlib"
1381 truehd_decoder_select="mlp_decoder"
1382 tscc_decoder_select="zlib"
1383 twinvq_decoder_select="mdct lsp sinewin"
1384 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1385 vc1_dxva2_hwaccel_deps="dxva2api_h"
1386 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1387 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1388 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1389 vc1image_decoder_select="vc1_decoder"
1390 vorbis_decoder_select="mdct"
1391 vorbis_encoder_select="mdct"
1392 vp6_decoder_select="huffman"
1393 vp6a_decoder_select="vp6_decoder"
1394 vp6f_decoder_select="vp6_decoder"
1395 vp8_decoder_select="h264pred h264qpel"
1396 wmapro_decoder_select="mdct sinewin"
1397 wmav1_decoder_select="mdct sinewin"
1398 wmav1_encoder_select="mdct sinewin"
1399 wmav2_decoder_select="mdct sinewin"
1400 wmav2_encoder_select="mdct sinewin"
1401 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1402 wmv1_decoder_select="h263_decoder"
1403 wmv1_encoder_select="h263_encoder"
1404 wmv2_decoder_select="h263_decoder"
1405 wmv2_encoder_select="h263_encoder"
1406 wmv3_decoder_select="vc1_decoder"
1407 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1408 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1409 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1410 wmv3image_decoder_select="wmv3_decoder"
1411 zerocodec_decoder_select="zlib"
1412 zlib_decoder_select="zlib"
1413 zlib_encoder_select="zlib"
1414 zmbv_decoder_select="zlib"
1415 zmbv_encoder_select="zlib"
1416
1417 vaapi_deps="va_va_h"
1418 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1419 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1420
1421 # parsers
1422 h264_parser_select="golomb h264dsp h264pred"
1423
1424 # external libraries
1425 libdirac_decoder_deps="libdirac !libschroedinger"
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 tcp_protocol_deps="network"
1518 tls_protocol_deps_any="openssl gnutls"
1519 tls_protocol_select="tcp_protocol"
1520 udp_protocol_deps="network"
1521
1522 # filters
1523 blackframe_filter_deps="gpl"
1524 boxblur_filter_deps="gpl"
1525 cropdetect_filter_deps="gpl"
1526 delogo_filter_deps="gpl"
1527 drawtext_filter_deps="libfreetype"
1528 frei0r_filter_deps="frei0r dlopen strtok_r"
1529 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1530 hqdn3d_filter_deps="gpl"
1531 ocv_filter_deps="libopencv"
1532 scale_filter_deps="swscale"
1533 yadif_filter_deps="gpl"
1534
1535 # libraries
1536 avdevice_deps="avcodec avformat"
1537 avformat_deps="avcodec"
1538
1539 # programs
1540 avconv_deps="avcodec avformat swscale"
1541 avplay_deps="avcodec avformat swscale sdl"
1542 avplay_select="rdft"
1543 avprobe_deps="avcodec avformat"
1544 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1545 avserver_extralibs='$ldl'
1546
1547 doc_deps="texi2html"
1548
1549 # tests
1550
1551 test_deps(){
1552     suf1=$1
1553     suf2=$2
1554     shift 2
1555     for v; do
1556         dep=${v%=*}
1557         tests=${v#*=}
1558         for name in ${tests}; do
1559             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1560         done
1561     done
1562 }
1563
1564 mxf_d10_test_deps="avfilter"
1565 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1566
1567 test_deps _encoder _decoder                                             \
1568     adpcm_ima_qt                                                        \
1569     adpcm_ima_wav                                                       \
1570     adpcm_ms                                                            \
1571     adpcm_swf                                                           \
1572     adpcm_yamaha=adpcm_yam                                              \
1573     alac                                                                \
1574     asv1                                                                \
1575     asv2                                                                \
1576     bmp                                                                 \
1577     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1578     dvvideo="dv dv_411 dv50"                                            \
1579     ffv1                                                                \
1580     flac                                                                \
1581     flashsv                                                             \
1582     flv                                                                 \
1583     adpcm_g726=g726                                                     \
1584     gif                                                                 \
1585     h261                                                                \
1586     h263="h263 h263p"                                                   \
1587     huffyuv                                                             \
1588     jpegls                                                              \
1589     mjpeg="jpg mjpeg ljpeg"                                             \
1590     mp2                                                                 \
1591     mpeg1video="mpeg mpeg1b"                                            \
1592     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1593     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1594     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1595     mpeg4="mpeg4thread error rc"                                        \
1596     msmpeg4v3=msmpeg4                                                   \
1597     msmpeg4v2                                                           \
1598     pbm=pbmpipe                                                         \
1599     pcx                                                                 \
1600     pgm="pgm pgmpipe"                                                   \
1601     png                                                                 \
1602     ppm="ppm ppmpipe"                                                   \
1603     rawvideo="rgb yuv"                                                  \
1604     roq                                                                 \
1605     rv10                                                                \
1606     rv20                                                                \
1607     sgi                                                                 \
1608     snow="snow snowll"                                                  \
1609     svq1                                                                \
1610     targa=tga                                                           \
1611     tiff                                                                \
1612     wmav1                                                               \
1613     wmav2                                                               \
1614     wmv1                                                                \
1615     wmv2                                                                \
1616
1617 test_deps _muxer _demuxer                                               \
1618     aiff                                                                \
1619     pcm_alaw=alaw                                                       \
1620     asf                                                                 \
1621     au                                                                  \
1622     avi                                                                 \
1623     dv=dv_fmt                                                           \
1624     ffm                                                                 \
1625     flv=flv_fmt                                                         \
1626     gxf                                                                 \
1627     matroska=mkv                                                        \
1628     mmf                                                                 \
1629     mov                                                                 \
1630     pcm_mulaw=mulaw                                                     \
1631     mxf="mxf mxf_d10"                                                   \
1632     nut                                                                 \
1633     ogg                                                                 \
1634     rawvideo=pixfmt                                                     \
1635     rm                                                                  \
1636     swf                                                                 \
1637     mpegts=ts                                                           \
1638     voc                                                                 \
1639     wav                                                                 \
1640     yuv4mpegpipe=yuv4mpeg                                               \
1641
1642 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1643 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1644
1645 # default parameters
1646
1647 logfile="config.log"
1648
1649 # installation paths
1650 prefix_default="/usr/local"
1651 bindir_default='${prefix}/bin'
1652 datadir_default='${prefix}/share/avconv'
1653 incdir_default='${prefix}/include'
1654 libdir_default='${prefix}/lib'
1655 mandir_default='${prefix}/share/man'
1656 shlibdir_default="$libdir_default"
1657
1658 # toolchain
1659 ar_default="ar"
1660 cc_default="gcc"
1661 cc_version=\"unknown\"
1662 host_cc_default="gcc"
1663 ln_s="ln -sf"
1664 nm_default="nm"
1665 objformat="elf"
1666 pkg_config_default=pkg-config
1667 ranlib="ranlib"
1668 yasmexe="yasm"
1669
1670 nm_opts='-g'
1671 nogas=":"
1672
1673 # machine
1674 arch_default=$(uname -m)
1675 cpu="generic"
1676
1677 # OS
1678 target_os_default=$(tolower $(uname -s))
1679 host_os=$target_os_default
1680
1681 # configurable options
1682 enable $PROGRAM_LIST
1683
1684 enable avcodec
1685 enable avdevice
1686 enable avfilter
1687 enable avformat
1688 enable avutil
1689 enable swscale
1690
1691 enable asm
1692 enable debug
1693 enable doc
1694 enable fastdiv
1695 enable network
1696 enable optimizations
1697 enable safe_bitstream_reader
1698 enable static
1699 enable swscale_alpha
1700
1701 # build settings
1702 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1703 AVSERVERLDFLAGS=-Wl,-E
1704 LIBPREF="lib"
1705 LIBSUF=".a"
1706 FULLNAME='$(NAME)$(BUILDSUF)'
1707 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1708 SLIBPREF="lib"
1709 SLIBSUF=".so"
1710 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1711 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1712 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1713 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1714 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1715 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1716
1717 AS_O='-o $@'
1718 CC_O='-o $@'
1719
1720 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1721 host_libs='-lm'
1722
1723 target_path='$(CURDIR)'
1724
1725 # since the object filename is not given with the -MM flag, the compiler
1726 # is only able to print the basename, and we must add the path ourselves
1727 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1728 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1729
1730 # find source path
1731 if test -f configure; then
1732     source_path=.
1733 else
1734     source_path=$(cd $(dirname "$0"); pwd)
1735     echo "$source_path" | grep -q '[[:blank:]]' &&
1736         die "Out of tree builds are impossible with whitespace in source path."
1737     test -e "$source_path/config.h" &&
1738         die "Out of tree builds are impossible with config.h in source dir."
1739 fi
1740
1741 for v in "$@"; do
1742     r=${v#*=}
1743     l=${v%"$r"}
1744     r=$(sh_quote "$r")
1745     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1746 done
1747
1748 find_things(){
1749     thing=$1
1750     pattern=$2
1751     file=$source_path/$3
1752     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1753 }
1754
1755 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1756 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1757 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1758 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1759 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1760 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1761 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1762 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1763 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1764 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1765 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1766
1767 ALL_COMPONENTS="
1768     $BSF_LIST
1769     $DECODER_LIST
1770     $DEMUXER_LIST
1771     $ENCODER_LIST
1772     $FILTER_LIST
1773     $HWACCEL_LIST
1774     $INDEV_LIST
1775     $MUXER_LIST
1776     $OUTDEV_LIST
1777     $PARSER_LIST
1778     $PROTOCOL_LIST
1779 "
1780
1781 find_tests(){
1782     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1783 }
1784
1785 ACODEC_TESTS=$(find_tests acodec)
1786 VCODEC_TESTS=$(find_tests vsynth1)
1787 LAVF_TESTS=$(find_tests lavf)
1788 LAVFI_TESTS=$(find_tests lavfi)
1789 SEEK_TESTS=$(find_tests seek seek_)
1790
1791 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1792
1793 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1794
1795 for n in $COMPONENT_LIST; do
1796     v=$(toupper ${n%s})_LIST
1797     eval enable \$$v
1798     eval ${n}_if_any="\$$v"
1799 done
1800
1801 enable $ARCH_EXT_LIST $ALL_TESTS
1802
1803 die_unknown(){
1804     echo "Unknown option \"$1\"."
1805     echo "See $0 --help for available options."
1806     exit 1
1807 }
1808
1809 show_list() {
1810     suffix=_$1
1811     shift
1812     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1813     exit 0
1814 }
1815
1816 for opt do
1817     optval="${opt#*=}"
1818     case "$opt" in
1819     --extra-ldflags=*) add_ldflags $optval
1820     ;;
1821     --extra-libs=*) add_extralibs $optval
1822     ;;
1823     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1824     ;;
1825     --enable-debug=*) debuglevel="$optval"
1826     ;;
1827     --disable-everything)
1828     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1829     ;;
1830     --enable-*=*|--disable-*=*)
1831     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1832     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1833     eval list=\$$(toupper $thing)_LIST
1834     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1835     $action $(filter "$name" $list)
1836     ;;
1837     --enable-?*|--disable-?*)
1838     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1839     if is_in $option $COMPONENT_LIST; then
1840         test $action = disable && action=unset
1841         eval $action \$$(toupper ${option%s})_LIST
1842     elif is_in $option $CMDLINE_SELECT; then
1843         $action $option
1844     else
1845         die_unknown $opt
1846     fi
1847     ;;
1848     --list-*)
1849         NAME="${opt#--list-}"
1850         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1851         NAME=${NAME%s}
1852         eval show_list $NAME \$$(toupper $NAME)_LIST
1853     ;;
1854     --help|-h) show_help
1855     ;;
1856     *)
1857     optname="${opt%%=*}"
1858     optname="${optname#--}"
1859     optname=$(echo "$optname" | sed 's/-/_/g')
1860     if is_in $optname $CMDLINE_SET; then
1861         eval $optname='$optval'
1862     elif is_in $optname $CMDLINE_APPEND; then
1863         append $optname "$optval"
1864     else
1865          die_unknown $opt
1866     fi
1867     ;;
1868     esac
1869 done
1870
1871 disabled logging && logfile=/dev/null
1872
1873 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1874 set >> $logfile
1875
1876 test -n "$cross_prefix" && enable cross_compile
1877
1878 if enabled cross_compile; then
1879     test -n "$arch" && test -n "$target_os" ||
1880         die "Must specify target arch and OS when cross-compiling"
1881 fi
1882
1883 set_default arch target_os
1884
1885 ar_default="${cross_prefix}${ar_default}"
1886 cc_default="${cross_prefix}${cc_default}"
1887 nm_default="${cross_prefix}${nm_default}"
1888 pkg_config_default="${cross_prefix}${pkg_config_default}"
1889 ranlib="${cross_prefix}${ranlib}"
1890
1891 sysinclude_default="${sysroot}/usr/include"
1892
1893 set_default cc nm pkg_config sysinclude
1894 enabled cross_compile || host_cc_default=$cc
1895 set_default host_cc
1896
1897 if ! $pkg_config --version >/dev/null 2>&1; then
1898     warn "$pkg_config not found, library detection may fail."
1899     pkg_config=false
1900 fi
1901
1902 exesuf() {
1903     case $1 in
1904         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1905     esac
1906 }
1907
1908 EXESUF=$(exesuf $target_os)
1909 HOSTEXESUF=$(exesuf $host_os)
1910
1911 # set temporary file name
1912 : ${TMPDIR:=$TEMPDIR}
1913 : ${TMPDIR:=$TMP}
1914 : ${TMPDIR:=/tmp}
1915
1916 if ! check_cmd mktemp -u XXXXXX; then
1917     # simple replacement for missing mktemp
1918     # NOT SAFE FOR GENERAL USE
1919     mktemp(){
1920         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1921     }
1922 fi
1923
1924 tmpfile(){
1925     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1926         (set -C; exec > $tmp) 2>/dev/null ||
1927         die "Unable to create temporary file in $TMPDIR."
1928     append TMPFILES $tmp
1929     eval $1=$tmp
1930 }
1931
1932 trap 'rm -f -- $TMPFILES' EXIT
1933
1934 tmpfile TMPASM .asm
1935 tmpfile TMPC   .c
1936 tmpfile TMPE   $EXESUF
1937 tmpfile TMPH   .h
1938 tmpfile TMPO   .o
1939 tmpfile TMPS   .S
1940 tmpfile TMPSH  .sh
1941 tmpfile TMPV   .ver
1942
1943 unset -f mktemp
1944
1945 chmod +x $TMPE
1946
1947 # make sure we can execute files in $TMPDIR
1948 cat > $TMPSH 2>> $logfile <<EOF
1949 #! /bin/sh
1950 EOF
1951 chmod +x $TMPSH >> $logfile 2>&1
1952 if ! $TMPSH >> $logfile 2>&1; then
1953     cat <<EOF
1954 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1955 variable to another directory and make sure that it is not mounted noexec.
1956 EOF
1957     die "Sanity test failed."
1958 fi
1959
1960 filter_asflags=echo
1961 filter_cflags=echo
1962 filter_cppflags=echo
1963
1964 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1965     cc_type=llvm_gcc
1966     cc_version=__VERSION__
1967     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1968     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1969     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1970     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1971     speed_cflags='-O3'
1972     size_cflags='-Os'
1973 elif $cc -v 2>&1 | grep -qi ^gcc; then
1974     cc_type=gcc
1975     cc_version=__VERSION__
1976     gcc_version=$($cc --version | head -n1)
1977     gcc_basever=$($cc -dumpversion)
1978     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1979     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1980     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1981     if ! $cc -dumpversion | grep -q '^2\.'; then
1982         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1983         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1984     fi
1985     speed_cflags='-O3'
1986     size_cflags='-Os'
1987 elif $cc --version 2>/dev/null | grep -q Intel; then
1988     cc_type=icc
1989     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1990     cc_ident=$($cc --version | head -n1)
1991     icc_version=$($cc -dumpversion)
1992     CC_DEPFLAGS='-MMD'
1993     AS_DEPFLAGS='-MMD'
1994     speed_cflags='-O3'
1995     size_cflags='-Os'
1996     noopt_cflags='-O1'
1997 elif $cc -v 2>&1 | grep -q xlc; then
1998     cc_type=xlc
1999     cc_version="AV_STRINGIFY(__IBMC__)"
2000     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2001     speed_cflags='-O5'
2002     size_cflags='-O5 -qcompact'
2003 elif $cc -V 2>/dev/null | grep -q Compaq; then
2004     cc_type=ccc
2005     cc_version="AV_STRINGIFY(__DECC_VER)"
2006     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2007     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2008     debuglevel=3
2009     add_ldflags -Wl,-z,now # calls to libots crash without this
2010     speed_cflags='-fast'
2011     size_cflags='-O1'
2012 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2013     test -d "$sysroot" || die "No valid sysroot specified."
2014     cc_type=armcc
2015     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2016     cc_ident=$($cc --vsn | head -n1)
2017     armcc_conf="$PWD/armcc.conf"
2018     $cc --arm_linux_configure                 \
2019         --arm_linux_config_file="$armcc_conf" \
2020         --configure_sysroot="$sysroot"        \
2021         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2022         die "Error creating armcc configuration file."
2023     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2024     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2025     as_default="${cross_prefix}gcc"
2026     CC_DEPFLAGS='-MMD'
2027     AS_DEPFLAGS='-MMD'
2028     speed_cflags='-O3'
2029     size_cflags='-Os'
2030     filter_asflags="filter_out -W${armcc_opt}*"
2031 elif $cc -version 2>/dev/null | grep -q TMS470; then
2032     cc_type=tms470
2033     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2034     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2035     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2036     CC_O='-fr=$(@D)'
2037     as_default="${cross_prefix}gcc"
2038     ld_default="${cross_prefix}gcc"
2039     TMPO=$(basename $TMPC .c).o
2040     append TMPFILES $TMPO
2041     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2042     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2043     AS_DEPFLAGS='-MMD'
2044     speed_cflags='-O3 -mf=5'
2045     size_cflags='-O3 -mf=2'
2046     filter_cflags=tms470_flags
2047     tms470_flags(){
2048         for flag; do
2049             case $flag in
2050                 -march=*|-mcpu=*)
2051                     case "${flag#*=}" in
2052                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2053                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2054                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2055                         armv6*|arm11*)          echo -mv=6   ;;
2056                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2057                                                 echo -mv=5e  ;;
2058                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2059                     esac
2060                     ;;
2061                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2062                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2063                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2064                 -msoft-float)   echo --float_support=vfplib       ;;
2065                 -O[0-3]|-mf=*)  echo $flag                        ;;
2066                 -g)             echo -g -mn                       ;;
2067                 -pds=*)         echo $flag                        ;;
2068             esac
2069         done
2070     }
2071 elif $cc -v 2>&1 | grep -q clang; then
2072     cc_type=clang
2073     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2074         cc_version=__clang_version__ || cc_version=__VERSION__
2075     cc_ident=$($cc --version | head -n1)
2076     CC_DEPFLAGS='-MMD'
2077     AS_DEPFLAGS='-MMD'
2078     speed_cflags='-O3'
2079     size_cflags='-Os'
2080 elif $cc -V 2>&1 | grep -q Sun; then
2081     cc_type=suncc
2082     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2083     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2084     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2085     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2086     add_ldflags -xc99
2087     speed_cflags='-O5'
2088     size_cflags='-O5 -xspace'
2089     filter_cflags=suncc_flags
2090     suncc_flags(){
2091         for flag; do
2092             case $flag in
2093                 -march=*|-mcpu=*)
2094                     case "${flag#*=}" in
2095                         native)                   echo -xtarget=native       ;;
2096                         v9|niagara)               echo -xarch=sparc          ;;
2097                         ultrasparc)               echo -xarch=sparcvis       ;;
2098                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2099                         i586|pentium)             echo -xchip=pentium        ;;
2100                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2101                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2102                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2103                         pentium4*)          echo -xtarget=pentium4           ;;
2104                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2105                         *-sse3)             echo -xarch=sse3                 ;;
2106                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2107                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2108                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2109                         k8|opteron|athlon64|athlon-fx)
2110                                                   echo -xarch=sse2a          ;;
2111                         athlon*)                  echo -xarch=pentium_proa   ;;
2112                     esac
2113                     ;;
2114                 -std=c99)             echo -xc99              ;;
2115                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2116                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2117                 -W*,*)                echo $flag              ;;
2118                 -f*-*|-W*)                                    ;;
2119                 *)                    echo $flag              ;;
2120             esac
2121         done
2122     }
2123 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2124     cc_type=pathscale
2125     cc_version=__PATHSCALE__
2126     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2127     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2128     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2129     speed_cflags='-O2'
2130     size_cflags='-Os'
2131     filter_cflags='filter_out -Wdisabled-optimization'
2132 elif $cc -v 2>&1 | grep -q Open64; then
2133     cc_type=open64
2134     cc_version=__OPEN64__
2135     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2136     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2137     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2138     speed_cflags='-O2'
2139     size_cflags='-Os'
2140     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2141 fi
2142
2143 test -n "$cc_type" && enable $cc_type ||
2144     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2145
2146 : ${as_default:=$cc}
2147 : ${dep_cc_default:=$cc}
2148 : ${ld_default:=$cc}
2149 set_default ar as dep_cc ld
2150
2151 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2152 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2153
2154 add_cflags $extra_cflags
2155 add_asflags $extra_cflags
2156
2157 if test -n "$sysroot"; then
2158     case "$cc_type" in
2159         gcc|llvm_gcc|clang)
2160             add_cppflags --sysroot="$sysroot"
2161             add_ldflags --sysroot="$sysroot"
2162         ;;
2163         tms470)
2164             add_cppflags -I"$sysinclude"
2165             add_ldflags  --sysroot="$sysroot"
2166         ;;
2167     esac
2168 fi
2169
2170 if test "$cpu" = host; then
2171     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2172
2173     case "$cc_type" in
2174         gcc|llvm_gcc)
2175             check_native(){
2176                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2177                 sed -n "/cc1.*$1=/{
2178                             s/.*$1=\\([^ ]*\\).*/\\1/
2179                             p
2180                             q
2181                         }" $TMPE
2182             }
2183             cpu=$(check_native -march || check_native -mcpu)
2184         ;;
2185     esac
2186
2187     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2188 fi
2189
2190 # Deal with common $arch aliases
2191 case "$arch" in
2192     arm*)
2193         arch="arm"
2194     ;;
2195     mips|mipsel|IP*)
2196         arch="mips"
2197     ;;
2198     mips64*)
2199         arch="mips"
2200         subarch="mips64"
2201     ;;
2202     parisc|hppa)
2203         arch="parisc"
2204     ;;
2205     parisc64|hppa64)
2206         arch="parisc"
2207         subarch="parisc64"
2208     ;;
2209     "Power Macintosh"|ppc|powerpc)
2210         arch="ppc"
2211     ;;
2212     ppc64|powerpc64)
2213         arch="ppc"
2214         subarch="ppc64"
2215     ;;
2216     s390|s390x)
2217         arch="s390"
2218     ;;
2219     sh4|sh)
2220         arch="sh4"
2221     ;;
2222     sun4u|sparc64)
2223         arch="sparc"
2224         subarch="sparc64"
2225     ;;
2226     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2227         arch="x86"
2228     ;;
2229 esac
2230
2231 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2232 enable $arch
2233
2234 # Add processor-specific flags
2235 if test "$cpu" = generic; then
2236     : do nothing
2237 elif enabled ppc; then
2238
2239     case $(tolower $cpu) in
2240         601|ppc601|powerpc601)
2241             cpuflags="-mcpu=601"
2242             disable altivec
2243         ;;
2244         603*|ppc603*|powerpc603*)
2245             cpuflags="-mcpu=603"
2246             disable altivec
2247         ;;
2248         604*|ppc604*|powerpc604*)
2249             cpuflags="-mcpu=604"
2250             disable altivec
2251         ;;
2252         g3|75*|ppc75*|powerpc75*)
2253             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2254             disable altivec
2255         ;;
2256         g4|745*|ppc745*|powerpc745*)
2257             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2258         ;;
2259         74*|ppc74*|powerpc74*)
2260             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2261         ;;
2262         g5|970|ppc970|powerpc970|power4*)
2263             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2264         ;;
2265         cell)
2266             cpuflags="-mcpu=cell"
2267             enable ldbrx
2268         ;;
2269         e500v2)
2270             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2271             disable altivec
2272         ;;
2273         e500)
2274             cpuflags="-mcpu=8540 -mhard-float"
2275             disable altivec
2276         ;;
2277     esac
2278
2279 elif enabled x86; then
2280
2281     case $cpu in
2282         i[345]86|pentium)
2283             cpuflags="-march=$cpu"
2284             disable mmx
2285         ;;
2286         # targets that do NOT support conditional mov (cmov)
2287         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2288             cpuflags="-march=$cpu"
2289             disable cmov
2290         ;;
2291         # targets that do support conditional mov (cmov)
2292         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2293             cpuflags="-march=$cpu"
2294             enable cmov
2295             enable fast_cmov
2296         ;;
2297         # targets that do support conditional mov but on which it's slow
2298         pentium4|pentium4m|prescott|nocona)
2299             cpuflags="-march=$cpu"
2300             enable cmov
2301             disable fast_cmov
2302         ;;
2303     esac
2304
2305 elif enabled sparc; then
2306
2307     case $cpu in
2308         niagara)
2309             cpuflags="-mcpu=$cpu"
2310             disable vis
2311         ;;
2312         sparc64)
2313             cpuflags="-mcpu=v9"
2314         ;;
2315     esac
2316
2317 elif enabled arm; then
2318
2319     case $cpu in
2320         armv*)
2321             cpuflags="-march=$cpu"
2322             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2323         ;;
2324         *)
2325             cpuflags="-mcpu=$cpu"
2326             case $cpu in
2327                 cortex-a*)                               subarch=armv7a  ;;
2328                 cortex-r*)                               subarch=armv7r  ;;
2329                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2330                 arm11*)                                  subarch=armv6   ;;
2331                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2332                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2333             esac
2334         ;;
2335     esac
2336
2337 elif enabled alpha; then
2338
2339     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2340
2341 elif enabled bfin; then
2342
2343     cpuflags="-mcpu=$cpu"
2344
2345 elif enabled mips; then
2346
2347     cpuflags="-march=$cpu"
2348
2349 elif enabled avr32; then
2350
2351     case $cpu in
2352         ap7[02]0[0-2])
2353             subarch="avr32_ap"
2354             cpuflags="-mpart=$cpu"
2355         ;;
2356         ap)
2357             subarch="avr32_ap"
2358             cpuflags="-march=$cpu"
2359         ;;
2360         uc3[ab]*)
2361             subarch="avr32_uc"
2362             cpuflags="-mcpu=$cpu"
2363         ;;
2364         uc)
2365             subarch="avr32_uc"
2366             cpuflags="-march=$cpu"
2367         ;;
2368     esac
2369
2370 fi
2371
2372 add_cflags $cpuflags
2373 add_asflags $cpuflags
2374
2375 # compiler sanity check
2376 check_exec <<EOF
2377 int main(void){ return 0; }
2378 EOF
2379 if test "$?" != 0; then
2380     echo "$cc is unable to create an executable file."
2381     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2382         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2383         echo "Only do this if you know what cross compiling means."
2384     fi
2385     die "C compiler test failed."
2386 fi
2387
2388 add_cppflags -D_ISOC99_SOURCE
2389 check_cflags -std=c99
2390 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2391 #include <stdlib.h>
2392 EOF
2393 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2394 #include <stdlib.h>
2395 EOF
2396
2397 check_host_cflags -std=c99
2398 check_host_cflags -Wall
2399
2400 case "$arch" in
2401     alpha|ia64|mips|parisc|sparc)
2402         spic=$shared
2403     ;;
2404     x86)
2405         subarch="x86_32"
2406         check_cc <<EOF && subarch="x86_64"
2407         int test[(int)sizeof(char*) - 7];
2408 EOF
2409         if test "$subarch" = "x86_64"; then
2410             spic=$shared
2411         fi
2412     ;;
2413 esac
2414
2415 enable $subarch
2416 enabled spic && enable pic
2417
2418 # OS specific
2419 case $target_os in
2420     haiku)
2421         prefix_default="/boot/common"
2422         network_extralibs="-lnetwork"
2423         host_libs=
2424         ;;
2425     sunos)
2426         AVSERVERLDFLAGS=""
2427         SHFLAGS='-shared -Wl,-h,$$(@F)'
2428         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2429         network_extralibs="-lsocket -lnsl"
2430         add_cppflags -D__EXTENSIONS__
2431         # When using suncc to build, the Solaris linker will mark
2432         # an executable with each instruction set encountered by
2433         # the Solaris assembler.  As our libraries contain their own
2434         # guards for processor-specific code, instead suppress
2435         # generation of the HWCAPS ELF section on Solaris x86 only.
2436         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2437         nm_opts='-P -g'
2438         ;;
2439     netbsd)
2440         disable symver
2441         oss_indev_extralibs="-lossaudio"
2442         oss_outdev_extralibs="-lossaudio"
2443         ;;
2444     openbsd)
2445         enable malloc_aligned
2446         # On OpenBSD 4.5. the compiler does not use PIC unless
2447         # explicitly using -fPIC. Libav builds fine without PIC,
2448         # however the generated executable will not do anything
2449         # (simply quits with exit-code 1, no crash, no output).
2450         # Thus explicitly enable PIC here.
2451         enable pic
2452         disable symver
2453         SHFLAGS='-shared'
2454         oss_indev_extralibs="-lossaudio"
2455         oss_outdev_extralibs="-lossaudio"
2456         ;;
2457     dragonfly)
2458         enable malloc_aligned
2459         disable symver
2460         ;;
2461     freebsd)
2462         enable malloc_aligned
2463         ;;
2464     bsd/os)
2465         add_extralibs -lpoll -lgnugetopt
2466         ;;
2467     darwin)
2468         enable malloc_aligned
2469         gas="gas-preprocessor.pl $cc"
2470         enabled ppc && add_asflags -force_cpusubtype_ALL
2471         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2472         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2473         add_ldflags -Wl,-dynamic,-search_paths_first
2474         SLIBSUF=".dylib"
2475         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2476         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2477         AVSERVERLDFLAGS=-Wl,-bind_at_load
2478         objformat="macho"
2479         enabled x86_64 && objformat="macho64"
2480         enabled_any pic shared ||
2481             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2482         ;;
2483     mingw32*)
2484         if test $target_os = "mingw32ce"; then
2485             disable network
2486         else
2487             target_os=mingw32
2488         fi
2489         LIBTARGET=i386
2490         if enabled x86_64; then
2491             enable malloc_aligned
2492             LIBTARGET="i386:x86-64"
2493         elif enabled arm; then
2494             LIBTARGET=arm-wince
2495         fi
2496         shlibdir_default="$bindir_default"
2497         SLIBPREF=""
2498         SLIBSUF=".dll"
2499         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2500         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2501         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2502         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2503         SLIB_INSTALL_LINKS=
2504         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2505         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2506         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'
2507         objformat="win32"
2508         dlltool="${cross_prefix}dlltool"
2509         enable dos_paths
2510         check_cflags -fno-common
2511         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2512                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2513                 die "ERROR: MinGW runtime version must be >= 3.15."
2514         add_cppflags -U__STRICT_ANSI__
2515         ;;
2516     cygwin*)
2517         target_os=cygwin
2518         shlibdir_default="$bindir_default"
2519         SLIBPREF="cyg"
2520         SLIBSUF=".dll"
2521         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2522         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2523         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2524         objformat="win32"
2525         enable dos_paths
2526         check_cflags -fno-common
2527         add_cppflags -U__STRICT_ANSI__
2528         ;;
2529     *-dos|freedos|opendos)
2530         network_extralibs="-lsocket"
2531         objformat="coff"
2532         enable dos_paths
2533         add_cppflags -U__STRICT_ANSI__
2534         ;;
2535     linux)
2536         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2537         enable dv1394
2538         ;;
2539     irix*)
2540         target_os=irix
2541         ranlib="echo ignoring ranlib"
2542         ;;
2543     os/2*)
2544         ln_s="cp -f"
2545         objformat="aout"
2546         add_cppflags -D_GNU_SOURCE
2547         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2548         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2549         AVSERVERLDFLAGS=""
2550         LIBSUF="_s.a"
2551         SLIBPREF=""
2552         SLIBSUF=".dll"
2553         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2554         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2555         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2556           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2557           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2558           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2559           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2560           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2561         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2562           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2563         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2564         enable dos_paths
2565         ;;
2566     gnu/kfreebsd)
2567         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2568         ;;
2569     gnu)
2570         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2571         ;;
2572     qnx)
2573         add_cppflags -D_QNX_SOURCE
2574         network_extralibs="-lsocket"
2575         ;;
2576     symbian)
2577         SLIBSUF=".dll"
2578         enable dos_paths
2579         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2580         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2581         add_ldflags -Wl,--target1-abs,--no-undefined \
2582                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2583                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2584         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2585                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2586                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2587         ;;
2588     none)
2589         ;;
2590     *)
2591         die "Unknown OS '$target_os'."
2592         ;;
2593 esac
2594
2595 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2596
2597 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2598
2599 set_default $PATHS_LIST
2600
2601 # we need to build at least one lib type
2602 if ! enabled_any static shared; then
2603     cat <<EOF
2604 At least one library type must be built.
2605 Specify --enable-static to build the static libraries or --enable-shared to
2606 build the shared libraries as well. To only build the shared libraries specify
2607 --disable-static in addition to --enable-shared.
2608 EOF
2609     exit 1;
2610 fi
2611
2612 die_license_disabled() {
2613     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2614 }
2615
2616 die_license_disabled gpl libcdio
2617 die_license_disabled gpl libx264
2618 die_license_disabled gpl libxavs
2619 die_license_disabled gpl libxvid
2620 die_license_disabled gpl x11grab
2621
2622 die_license_disabled nonfree libfaac
2623 die_license_disabled nonfree openssl
2624
2625 die_license_disabled version3 libopencore_amrnb
2626 die_license_disabled version3 libopencore_amrwb
2627 die_license_disabled version3 libvo_aacenc
2628 die_license_disabled version3 libvo_amrwbenc
2629
2630 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2631
2632 disabled optimizations || check_cflags -fomit-frame-pointer
2633
2634 enable_pic() {
2635     enable pic
2636     add_cppflags -DPIC
2637     add_cflags   -fPIC
2638     add_asflags  -fPIC
2639 }
2640
2641 enabled pic && enable_pic
2642
2643 check_cc <<EOF || die "Symbol mangling check failed."
2644 int ff_extern;
2645 EOF
2646 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2647 extern_prefix=${sym%%ff_extern*}
2648
2649 check_cc <<EOF && enable inline_asm
2650 void foo(void) { __asm__ volatile ("" ::); }
2651 EOF
2652
2653 _restrict=
2654 for restrict_keyword in restrict __restrict__ __restrict; do
2655     check_cc <<EOF && _restrict=$restrict_keyword && break
2656 void foo(char * $restrict_keyword p);
2657 EOF
2658 done
2659
2660 check_cc <<EOF && enable attribute_packed
2661 struct { int x; } __attribute__((packed)) x;
2662 EOF
2663
2664 check_cc <<EOF && enable attribute_may_alias
2665 union { int x; } __attribute__((may_alias)) x;
2666 EOF
2667
2668 check_cc <<EOF || die "endian test failed"
2669 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2670 EOF
2671 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2672
2673 if enabled alpha; then
2674
2675     check_cflags -mieee
2676
2677 elif enabled arm; then
2678
2679     enabled thumb && check_cflags -mthumb || check_cflags -marm
2680     nogas=die
2681
2682     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2683         enable vfp_args
2684     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2685         case "${cross_prefix:-$cc}" in
2686             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2687             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2688 __asm__ (".eabi_attribute 28, 1");
2689 int main(void) { return 0; }
2690 EOF
2691         esac
2692         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2693     fi
2694
2695     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2696     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2697     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2698     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2699     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2700     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2701
2702     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2703
2704     enabled_all armv6t2 shared !pic && enable_pic
2705
2706 elif enabled mips; then
2707
2708     check_asm loongson '"dmult.g $1, $2, $3"'
2709     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2710
2711 elif enabled ppc; then
2712
2713     enable local_aligned_8 local_aligned_16
2714
2715     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2716     check_asm ibm_asm   '"add 0, 0, 0"'
2717     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2718     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2719
2720     # AltiVec flags: The FSF version of GCC differs from the Apple version
2721     if enabled altivec; then
2722         nogas=warn
2723         check_cflags -maltivec -mabi=altivec &&
2724         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2725         check_cflags -faltivec
2726
2727         # check if our compiler supports Motorola AltiVec C API
2728         check_cc <<EOF || disable altivec
2729 $inc_altivec_h
2730 int main(void) {
2731     vector signed int v1, v2, v3;
2732     v1 = vec_add(v2,v3);
2733     return 0;
2734 }
2735 EOF
2736
2737         # check if our compiler supports braces for vector declarations
2738         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2739 $inc_altivec_h
2740 int main (void) { (vector int) {1}; return 0; }
2741 EOF
2742     fi
2743
2744 elif enabled sparc; then
2745
2746     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2747         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2748
2749 elif enabled x86; then
2750
2751     enable local_aligned_8 local_aligned_16
2752
2753     # check whether EBP is available on x86
2754     # As 'i' is stored on the stack, this program will crash
2755     # if the base pointer is used to access it because the
2756     # base pointer is cleared in the inline assembly code.
2757     check_exec_crash <<EOF && enable ebp_available
2758     volatile int i=0;
2759     __asm__ volatile (
2760         "xorl %%ebp, %%ebp"
2761     ::: "%ebp");
2762     return i;
2763 EOF
2764
2765     # check whether EBX is available on x86
2766     check_asm ebx_available '""::"b"(0)' &&
2767         check_asm ebx_available '"":::"%ebx"'
2768
2769     # check whether xmm clobbers are supported
2770     check_asm xmm_clobbers '"":::"%xmm0"'
2771
2772     # check whether binutils is new enough to compile SSSE3/MMX2
2773     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2774     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2775
2776     if ! disabled_any asm mmx yasm; then
2777         if check_cmd $yasmexe --version; then
2778             enabled x86_64 && yasm_extra="-m amd64"
2779             yasm_debug="-g dwarf2"
2780         elif check_cmd nasm -v; then
2781             yasmexe=nasm
2782             yasm_debug="-g -F dwarf"
2783             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2784         fi
2785
2786         YASMFLAGS="-f $objformat $yasm_extra"
2787         enabled pic               && append YASMFLAGS "-DPIC"
2788         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2789         case "$objformat" in
2790             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2791         esac
2792
2793         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2794             die "yasm not found, use --disable-yasm for a crippled build"
2795         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2796     fi
2797
2798     case "$cpu" in
2799         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2800             disable fast_clz
2801         ;;
2802     esac
2803
2804 fi
2805
2806 if enabled asm; then
2807     as=${gas:=$as}
2808     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2809         $nogas "GNU assembler not found, install gas-preprocessor"
2810 fi
2811
2812 check_ldflags -Wl,--as-needed
2813
2814 if check_func dlopen; then
2815     ldl=
2816 elif check_func dlopen -ldl; then
2817     ldl=-ldl
2818 fi
2819
2820 if enabled network; then
2821     check_type "sys/types.h sys/socket.h" socklen_t
2822     check_type netdb.h "struct addrinfo"
2823     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2824     check_type netinet/in.h "struct sockaddr_in6"
2825     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2826     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2827     # Prefer arpa/inet.h over winsock2
2828     if check_header arpa/inet.h ; then
2829         check_func closesocket
2830     elif check_header winsock2.h ; then
2831         check_func_headers winsock2.h closesocket -lws2 && \
2832             network_extralibs="-lws2" || \
2833         { check_func_headers winsock2.h closesocket -lws2_32 && \
2834             network_extralibs="-lws2_32"; }
2835         check_type ws2tcpip.h socklen_t
2836         check_type ws2tcpip.h "struct addrinfo"
2837         check_type ws2tcpip.h "struct ipv6_mreq"
2838         check_type ws2tcpip.h "struct sockaddr_in6"
2839         check_type ws2tcpip.h "struct sockaddr_storage"
2840         check_struct winsock2.h "struct sockaddr" sa_len
2841     else
2842         disable network
2843     fi
2844 fi
2845
2846 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2847 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2848
2849 check_func  fcntl
2850 check_func  fork
2851 check_func  getaddrinfo $network_extralibs
2852 check_func  gethrtime
2853 check_func  getrusage
2854 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2855 check_func  inet_aton $network_extralibs
2856 check_func  isatty
2857 check_func  localtime_r
2858 check_func  ${malloc_prefix}memalign            && enable memalign
2859 check_func  mkstemp
2860 check_func  mmap
2861 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2862 check_func  setrlimit
2863 check_func  strerror_r
2864 check_func  strptime
2865 check_func  strtok_r
2866 check_func  sched_getaffinity
2867 check_func  sysconf
2868 check_func  sysctl
2869 check_func_headers io.h setmode
2870 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2871 check_func_headers windows.h GetProcessAffinityMask
2872 check_func_headers windows.h GetProcessTimes
2873 check_func_headers windows.h MapViewOfFile
2874 check_func_headers windows.h VirtualAlloc
2875
2876 check_header dlfcn.h
2877 check_header dxva2api.h
2878 check_header malloc.h
2879 check_header poll.h
2880 check_header sys/mman.h
2881 check_header sys/param.h
2882 check_header sys/resource.h
2883 check_header sys/select.h
2884 check_header vdpau/vdpau.h
2885 check_header vdpau/vdpau_x11.h
2886 check_header X11/extensions/XvMClib.h
2887
2888 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2889 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2890
2891 if ! disabled w32threads && ! enabled pthreads; then
2892     check_func _beginthreadex && enable w32threads
2893 fi
2894
2895 # check for some common methods of building with pthread support
2896 # do this before the optional library checks as some of them require pthreads
2897 if ! disabled pthreads && ! enabled w32threads; then
2898     enable pthreads
2899     if check_func pthread_create; then
2900         :
2901     elif check_func pthread_create -pthread; then
2902         add_cflags -pthread
2903         add_extralibs -pthread
2904     elif check_func pthread_create -pthreads; then
2905         add_cflags -pthreads
2906         add_extralibs -pthreads
2907     elif check_func pthread_create -lpthreadGC2; then
2908         add_extralibs -lpthreadGC2
2909     elif ! check_lib pthread.h pthread_create -lpthread; then
2910         disable pthreads
2911     fi
2912 fi
2913
2914 for thread in $THREADS_LIST; do
2915     if enabled $thread; then
2916         test -n "$thread_type" &&
2917             die "ERROR: Only one thread type must be selected." ||
2918             thread_type="$thread"
2919     fi
2920 done
2921
2922 check_lib math.h sin -lm && LIBM="-lm"
2923 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2924
2925 check_mathfunc exp2
2926 check_mathfunc exp2f
2927 check_mathfunc llrint
2928 check_mathfunc llrintf
2929 check_mathfunc log2
2930 check_mathfunc log2f
2931 check_mathfunc lrint
2932 check_mathfunc lrintf
2933 check_mathfunc round
2934 check_mathfunc roundf
2935 check_mathfunc trunc
2936 check_mathfunc truncf
2937
2938 # these are off by default, so fail if requested and not available
2939 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2940 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2941 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2942 enabled libdirac   && require_pkg_config dirac                          \
2943     "libdirac_decoder/dirac_parser.h"  \
2944     "dirac_decoder_init"
2945 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2946 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2947 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2948 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2949 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2950 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2951 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2952 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2953 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2954 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2955 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2956 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2957 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2958 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2959 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2960 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2961 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2962 enabled libvpx     && {
2963     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2964                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2965     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2966                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2967 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2968                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2969                         die "ERROR: libx264 version must be >= 0.118."; }
2970 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2971 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2972 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2973                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2974                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2975                         die "ERROR: openssl not found"; }
2976
2977 # libdc1394 check
2978 if enabled libdc1394; then
2979     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2980         enable libdc1394_2; } ||
2981     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2982         enable libdc1394_1; } ||
2983     die "ERROR: No version of libdc1394 found "
2984 fi
2985
2986 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2987     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2988     enable sdl &&
2989     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2990 fi
2991
2992 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2993
2994 check_header linux/fb.h
2995 check_header linux/videodev2.h
2996 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2997
2998 check_header sys/videoio.h
2999
3000 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3001 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3002 # w32api 3.12 had it defined wrong
3003 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3004
3005 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3006 { check_header dev/bktr/ioctl_meteor.h &&
3007   check_header dev/bktr/ioctl_bt848.h; } ||
3008 { check_header machine/ioctl_meteor.h &&
3009   check_header machine/ioctl_bt848.h; } ||
3010 { check_header dev/video/meteor/ioctl_meteor.h &&
3011   check_header dev/video/bktr/ioctl_bt848.h; } ||
3012 check_header dev/ic/bt8xx.h
3013
3014 check_header sndio.h
3015 check_header sys/soundcard.h
3016 check_header soundcard.h
3017
3018 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3019
3020 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3021
3022 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3023
3024 enabled libcdio &&
3025     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3026
3027 enabled x11grab                                           &&
3028 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3029 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3030 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3031
3032 # check for VDA header
3033 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3034     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3035 fi
3036
3037 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3038 check_cpp_condition \
3039     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3040     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3041       disable vdpau; }
3042 fi
3043
3044 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3045
3046 # add some useful compiler flags if supported
3047 check_cflags -Wdeclaration-after-statement
3048 check_cflags -Wall
3049 check_cflags -Wno-parentheses
3050 check_cflags -Wno-switch
3051 check_cflags -Wno-format-zero-length
3052 check_cflags -Wdisabled-optimization
3053 check_cflags -Wpointer-arith
3054 check_cflags -Wredundant-decls
3055 check_cflags -Wno-pointer-sign
3056 check_cflags -Wcast-qual
3057 check_cflags -Wwrite-strings
3058 check_cflags -Wtype-limits
3059 check_cflags -Wundef
3060 check_cflags -Wmissing-prototypes
3061 check_cflags -Wstrict-prototypes
3062 enabled extra_warnings && check_cflags -Winline
3063
3064 # add some linker flags
3065 check_ldflags -Wl,--warn-common
3066 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3067 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3068
3069 enabled xmm_clobber_test &&                             \
3070     check_ldflags -Wl,--wrap,avcodec_open2              \
3071                   -Wl,--wrap,avcodec_decode_audio4      \
3072                   -Wl,--wrap,avcodec_decode_video2      \
3073                   -Wl,--wrap,avcodec_decode_subtitle2   \
3074                   -Wl,--wrap,avcodec_encode_audio2      \
3075                   -Wl,--wrap,avcodec_encode_video       \
3076                   -Wl,--wrap,avcodec_encode_subtitle    \
3077                   -Wl,--wrap,sws_scale ||               \
3078     disable xmm_clobber_test
3079
3080 echo "X{};" > $TMPV
3081 if test_ldflags -Wl,--version-script,$TMPV; then
3082     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3083     check_cc <<EOF && enable symver_asm_label
3084 void ff_foo(void) __asm__ ("av_foo@VERSION");
3085 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3086 EOF
3087     check_cc <<EOF && enable symver_gnu_asm
3088 __asm__(".symver ff_foo,av_foo@VERSION");
3089 void ff_foo(void) {}
3090 EOF
3091 fi
3092
3093 if [ -n "$optflags" ]; then
3094     add_cflags $optflags
3095 elif enabled small; then
3096     add_cflags $size_cflags
3097 elif enabled optimizations; then
3098     add_cflags $speed_cflags
3099 else
3100     add_cflags $noopt_cflags
3101 fi
3102 check_cflags -fno-math-errno
3103 check_cflags -fno-signed-zeros
3104
3105 if enabled icc; then
3106     # Just warnings, no remarks
3107     check_cflags -w1
3108     # -wd: Disable following warnings
3109     # 144, 167, 556: -Wno-pointer-sign
3110     # 1292: attribute "foo" ignored
3111     # 10006: ignoring unknown option -fno-signed-zeros
3112     # 10148: ignoring unknown option -Wno-parentheses
3113     # 10156: ignoring option '-W'; no argument required
3114     check_cflags -wd144,167,556,1292,10006,10148,10156
3115     # 11030: Warning unknown option --as-needed
3116     # 10156: ignoring option '-export'; no argument required
3117     check_ldflags -wd10156,11030
3118     # Allow to compile with optimizations
3119     check_ldflags -march=$cpu
3120     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3121     enable ebp_available
3122     if enabled x86_32; then
3123         test ${icc_version%%.*} -ge 11 && \
3124             check_cflags -falign-stack=maintain-16-byte || \
3125             disable aligned_stack
3126     fi
3127 elif enabled ccc; then
3128     # disable some annoying warnings
3129     add_cflags -msg_disable cvtu32to64
3130     add_cflags -msg_disable embedcomment
3131     add_cflags -msg_disable needconstext
3132     add_cflags -msg_disable nomainieee
3133     add_cflags -msg_disable ptrmismatch1
3134     add_cflags -msg_disable unreachcode
3135 elif enabled gcc; then
3136     check_cflags -fno-tree-vectorize
3137     check_cflags -Werror=implicit-function-declaration
3138     check_cflags -Werror=missing-prototypes
3139     check_cflags -Werror=declaration-after-statement
3140 elif enabled llvm_gcc; then
3141     check_cflags -mllvm -stack-alignment=16
3142 elif enabled clang; then
3143     check_cflags -mllvm -stack-alignment=16
3144     check_cflags -Qunused-arguments
3145 elif enabled armcc; then
3146     # 2523: use of inline assembler is deprecated
3147     add_cflags -W${armcc_opt},--diag_suppress=2523
3148     add_cflags -W${armcc_opt},--diag_suppress=1207
3149     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3150     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3151     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3152     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3153 elif enabled tms470; then
3154     add_cflags -pds=824 -pds=837
3155 elif enabled pathscale; then
3156     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3157 fi
3158
3159 enabled_any $THREADS_LIST      && enable threads
3160
3161 check_deps $CONFIG_LIST       \
3162            $CONFIG_EXTRA      \
3163            $HAVE_LIST         \
3164            $ALL_COMPONENTS    \
3165            $ALL_TESTS         \
3166
3167 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3168
3169 ! enabled_any memalign posix_memalign malloc_aligned &&
3170     enabled_any $need_memalign && enable memalign_hack
3171
3172 echo "install prefix            $prefix"
3173 echo "source path               $source_path"
3174 echo "C compiler                $cc"
3175 echo "ARCH                      $arch ($cpu)"
3176 if test "$build_suffix" != ""; then
3177     echo "build suffix              $build_suffix"
3178 fi
3179 if test "$extra_version" != ""; then
3180     echo "version string suffix     $extra_version"
3181 fi
3182 echo "big-endian                ${bigendian-no}"
3183 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3184 if enabled x86; then
3185     echo "${yasmexe}                      ${yasm-no}"
3186     echo "MMX enabled               ${mmx-no}"
3187     echo "MMX2 enabled              ${mmx2-no}"
3188     echo "3DNow! enabled            ${amd3dnow-no}"
3189     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3190     echo "SSE enabled               ${sse-no}"
3191     echo "SSSE3 enabled             ${ssse3-no}"
3192     echo "AVX enabled               ${avx-no}"
3193     echo "CMOV enabled              ${cmov-no}"
3194     echo "CMOV is fast              ${fast_cmov-no}"
3195     echo "EBX available             ${ebx_available-no}"
3196     echo "EBP available             ${ebp_available-no}"
3197 fi
3198 if enabled arm; then
3199     echo "ARMv5TE enabled           ${armv5te-no}"
3200     echo "ARMv6 enabled             ${armv6-no}"
3201     echo "ARMv6T2 enabled           ${armv6t2-no}"
3202     echo "ARM VFP enabled           ${armvfp-no}"
3203     echo "NEON enabled              ${neon-no}"
3204 fi
3205 if enabled mips; then
3206     echo "MMI enabled               ${mmi-no}"
3207 fi
3208 if enabled ppc; then
3209     echo "AltiVec enabled           ${altivec-no}"
3210     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3211     echo "dcbzl available           ${dcbzl-no}"
3212 fi
3213 if enabled sparc; then
3214     echo "VIS enabled               ${vis-no}"
3215 fi
3216 echo "debug symbols             ${debug-no}"
3217 echo "optimize for size         ${small-no}"
3218 echo "optimizations             ${optimizations-no}"
3219 echo "static                    ${static-no}"
3220 echo "shared                    ${shared-no}"
3221 echo "new filter support        ${avfilter-no}"
3222 echo "network support           ${network-no}"
3223 echo "threading support         ${thread_type-no}"
3224 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3225 echo "SDL support               ${sdl-no}"
3226 echo "libdxva2 enabled          ${dxva2-no}"
3227 echo "libva enabled             ${vaapi-no}"
3228 echo "libvdpau enabled          ${vdpau-no}"
3229 echo "AVISynth enabled          ${avisynth-no}"
3230 echo "frei0r enabled            ${frei0r-no}"
3231 echo "gnutls enabled            ${gnutls-no}"
3232 echo "libcdio support           ${libcdio-no}"
3233 echo "libdc1394 support         ${libdc1394-no}"
3234 echo "libdirac enabled          ${libdirac-no}"
3235 echo "libfaac enabled           ${libfaac-no}"
3236 echo "libgsm enabled            ${libgsm-no}"
3237 echo "libmp3lame enabled        ${libmp3lame-no}"
3238 echo "libnut enabled            ${libnut-no}"
3239 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3240 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3241 echo "libopencv support         ${libopencv-no}"
3242 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3243 echo "libpulse enabled          ${libpulse-no}"
3244 echo "librtmp enabled           ${librtmp-no}"
3245 echo "libschroedinger enabled   ${libschroedinger-no}"
3246 echo "libspeex enabled          ${libspeex-no}"
3247 echo "libtheora enabled         ${libtheora-no}"
3248 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3249 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3250 echo "libvorbis enabled         ${libvorbis-no}"
3251 echo "libvpx enabled            ${libvpx-no}"
3252 echo "libx264 enabled           ${libx264-no}"
3253 echo "libxavs enabled           ${libxavs-no}"
3254 echo "libxvid enabled           ${libxvid-no}"
3255 echo "openssl enabled           ${openssl-no}"
3256 echo "zlib enabled              ${zlib-no}"
3257 echo "bzlib enabled             ${bzlib-no}"
3258 echo
3259
3260 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3261     echo "Enabled ${type}s:"
3262     eval list=\$$(toupper $type)_LIST
3263     print_enabled '_*' $list | sort | pr -r -3 -t
3264     echo
3265 done
3266
3267 license="LGPL version 2.1 or later"
3268 if enabled nonfree; then
3269     license="nonfree and unredistributable"
3270 elif enabled gplv3; then
3271     license="GPL version 3 or later"
3272 elif enabled lgplv3; then
3273     license="LGPL version 3 or later"
3274 elif enabled gpl; then
3275     license="GPL version 2 or later"
3276 fi
3277
3278 echo "License: $license"
3279
3280 echo "Creating config.mak and config.h..."
3281
3282 test -e Makefile || $ln_s "$source_path/Makefile" .
3283
3284 config_files="$TMPH config.mak"
3285
3286 cat > config.mak <<EOF
3287 # Automatically generated by configure - do not modify!
3288 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3289 prefix=$prefix
3290 LIBDIR=\$(DESTDIR)$libdir
3291 SHLIBDIR=\$(DESTDIR)$shlibdir
3292 INCDIR=\$(DESTDIR)$incdir
3293 BINDIR=\$(DESTDIR)$bindir
3294 DATADIR=\$(DESTDIR)$datadir
3295 MANDIR=\$(DESTDIR)$mandir
3296 SRC_PATH=$source_path
3297 CC_IDENT=$cc_ident
3298 ARCH=$arch
3299 CC=$cc
3300 AS=$as
3301 LD=$ld
3302 DEPCC=$dep_cc
3303 YASM=$yasmexe
3304 YASMDEP=$yasmexe
3305 AR=$ar
3306 RANLIB=$ranlib
3307 LN_S=$ln_s
3308 CPPFLAGS=$CPPFLAGS
3309 CFLAGS=$CFLAGS
3310 ASFLAGS=$ASFLAGS
3311 AS_O=$CC_O
3312 CC_O=$CC_O
3313 DLLTOOL=$dlltool
3314 LDFLAGS=$LDFLAGS
3315 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3316 SHFLAGS=$SHFLAGS
3317 YASMFLAGS=$YASMFLAGS
3318 BUILDSUF=$build_suffix
3319 FULLNAME=$FULLNAME
3320 LIBPREF=$LIBPREF
3321 LIBSUF=$LIBSUF
3322 LIBNAME=$LIBNAME
3323 SLIBPREF=$SLIBPREF
3324 SLIBSUF=$SLIBSUF
3325 EXESUF=$EXESUF
3326 EXTRA_VERSION=$extra_version
3327 DEPFLAGS=$DEPFLAGS
3328 CCDEP=$CCDEP
3329 ASDEP=$ASDEP
3330 CC_DEPFLAGS=$CC_DEPFLAGS
3331 AS_DEPFLAGS=$AS_DEPFLAGS
3332 HOSTCC=$host_cc
3333 HOSTCFLAGS=$host_cflags
3334 HOSTEXESUF=$HOSTEXESUF
3335 HOSTLDFLAGS=$host_ldflags
3336 HOSTLIBS=$host_libs
3337 TARGET_EXEC=$target_exec
3338 TARGET_PATH=$target_path
3339 SDL_LIBS=$sdl_libs
3340 SDL_CFLAGS=$sdl_cflags
3341 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3342 EXTRALIBS=$extralibs
3343 INSTALL=install
3344 LIBTARGET=${LIBTARGET}
3345 SLIBNAME=${SLIBNAME}
3346 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3347 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3348 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3349 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3350 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3351 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3352 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3353 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3354 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3355 EOF
3356
3357 get_version(){
3358     name=$1
3359     file=$source_path/$2
3360     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3361     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3362     lcname=$(tolower $name)
3363     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3364     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3365 }
3366
3367 get_version LIBAVCODEC  libavcodec/version.h
3368 get_version LIBAVDEVICE libavdevice/avdevice.h
3369 get_version LIBAVFILTER libavfilter/version.h
3370 get_version LIBAVFORMAT libavformat/version.h
3371 get_version LIBAVUTIL   libavutil/avutil.h
3372 get_version LIBSWSCALE  libswscale/swscale.h
3373
3374 cat > $TMPH <<EOF
3375 /* Automatically generated by configure - do not modify! */
3376 #ifndef LIBAV_CONFIG_H
3377 #define LIBAV_CONFIG_H
3378 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3379 #define LIBAV_LICENSE "$(c_escape $license)"
3380 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3381 #define CC_TYPE "$cc_type"
3382 #define CC_VERSION $cc_version
3383 #define restrict $_restrict
3384 #define EXTERN_PREFIX "${extern_prefix}"
3385 #define EXTERN_ASM ${extern_prefix}
3386 #define SLIBSUF "$SLIBSUF"
3387 EOF
3388
3389 test -n "$malloc_prefix" &&
3390     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3391
3392 if enabled small || disabled optimizations; then
3393     echo "#undef  av_always_inline"  >> $TMPH
3394     if enabled small; then
3395         echo "#define av_always_inline inline"  >> $TMPH
3396     else
3397         echo "#define av_always_inline av_unused"  >> $TMPH
3398     fi
3399 fi
3400
3401 if enabled yasm; then
3402     append config_files $TMPASM
3403     printf '' >$TMPASM
3404 fi
3405
3406 print_config ARCH_   "$config_files" $ARCH_LIST
3407 print_config HAVE_   "$config_files" $HAVE_LIST
3408 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3409                                      $CONFIG_EXTRA      \
3410                                      $ALL_COMPONENTS    \
3411
3412 cat >>config.mak <<EOF
3413 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3414 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3415 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3416 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3417 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3418 EOF
3419
3420 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3421
3422 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3423 cp_if_changed $TMPH config.h
3424 touch .config
3425
3426 enabled yasm && cp_if_changed $TMPASM config.asm
3427
3428 cat > $TMPH <<EOF
3429 /* Generated by ffconf */
3430 #ifndef AVUTIL_AVCONFIG_H
3431 #define AVUTIL_AVCONFIG_H
3432 EOF
3433
3434 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3435
3436 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3437
3438 cp_if_changed $TMPH libavutil/avconfig.h
3439
3440 test -n "$WARNINGS" && printf "\n$WARNINGS"
3441
3442 # build pkg-config files
3443
3444 pkgconfig_generate(){
3445 name=$1
3446 shortname=${name#lib}${build_suffix}
3447 comment=$2
3448 version=$3
3449 libs=$4
3450 requires=$5
3451 enabled ${name#lib} || return 0
3452 mkdir -p $name
3453 cat <<EOF > $name/$name.pc
3454 prefix=$prefix
3455 exec_prefix=\${prefix}
3456 libdir=$libdir
3457 includedir=$incdir
3458
3459 Name: $name
3460 Description: $comment
3461 Version: $version
3462 Requires: $(enabled shared || echo $requires)
3463 Requires.private: $(enabled shared && echo $requires)
3464 Conflicts:
3465 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3466 Libs.private: $(enabled shared && echo $libs)
3467 Cflags: -I\${includedir}
3468 EOF
3469 cat <<EOF > $name/$name-uninstalled.pc
3470 prefix=
3471 exec_prefix=
3472 libdir=\${pcfiledir}
3473 includedir=${source_path}
3474
3475 Name: $name
3476 Description: $comment
3477 Version: $version
3478 Requires: $requires
3479 Conflicts:
3480 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3481 Cflags: -I\${includedir}
3482 EOF
3483 }
3484
3485 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3486 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3487 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3488 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3489 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3490 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"