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

   1 #!/bin/sh
   2 #
   3 # FFmpeg 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 FFMPEG, 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 FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version2        force GPL version 2 [no]
  80   --enable-version3        upgrade (L)GPL to version 3 [no]
  81   --enable-nonfree         allow use of nonfree code, the resulting libs
  82                            and binaries will be unredistributable [no]
  83   --disable-doc            do not build documentation
  84   --disable-ffmpeg         disable ffmpeg build
  85   --disable-avconv         disable avconv build
  86   --disable-ffplay         disable ffplay build
  87   --disable-ffprobe        disable ffprobe build
  88   --disable-ffserver       disable ffserver build
  89   --disable-avdevice       disable libavdevice build
  90   --disable-avcodec        disable libavcodec build
  91   --disable-avformat       disable libavformat build
  92   --disable-swscale        disable libswscale build
  93   --disable-postproc       disable libpostproc build
  94   --disable-avfilter       disable video filter support [no]
  95   --disable-pthreads       disable pthreads [auto]
  96   --enable-w32threads      use Win32 threads [no]
  97   --enable-x11grab         enable X11 grabbing [no]
  98   --disable-network        disable network support [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --enable-vaapi           enable VAAPI code [autodetect]
 112   --enable-vdpau           enable VDPAU code [autodetect]
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 117   --disable-everything     disable all components listed below
 118   --disable-encoder=NAME   disable encoder NAME
 119   --enable-encoder=NAME    enable encoder NAME
 120   --disable-encoders       disable all encoders
 121   --disable-decoder=NAME   disable decoder NAME
 122   --enable-decoder=NAME    enable decoder NAME
 123   --disable-decoders       disable all decoders
 124   --disable-hwaccel=NAME   disable hwaccel NAME
 125   --enable-hwaccel=NAME    enable hwaccel NAME
 126   --disable-hwaccels       disable all hwaccels
 127   --disable-muxer=NAME     disable muxer NAME
 128   --enable-muxer=NAME      enable muxer NAME
 129   --disable-muxers         disable all muxers
 130   --disable-demuxer=NAME   disable demuxer NAME
 131   --enable-demuxer=NAME    enable demuxer NAME
 132   --disable-demuxers       disable all demuxers
 133   --enable-parser=NAME     enable parser NAME
 134   --disable-parser=NAME    disable parser NAME
 135   --disable-parsers        disable all parsers
 136   --enable-bsf=NAME        enable bitstream filter NAME
 137   --disable-bsf=NAME       disable bitstream filter NAME
 138   --disable-bsfs           disable all bitstream filters
 139   --enable-protocol=NAME   enable protocol NAME
 140   --disable-protocol=NAME  disable protocol NAME
 141   --disable-protocols      disable all protocols
 142   --disable-indev=NAME     disable input device NAME
 143   --disable-outdev=NAME    disable output device NAME
 144   --disable-indevs         disable input devices
 145   --disable-outdevs        disable output devices
 146   --disable-devices        disable all devices
 147   --enable-filter=NAME     enable filter NAME
 148   --disable-filter=NAME    disable filter NAME
 149   --disable-filters        disable all filters
 150   --list-decoders          show all available decoders
 151   --list-encoders          show all available encoders
 152   --list-hwaccels          show all available hardware accelerators
 153   --list-muxers            show all available muxers
 154   --list-demuxers          show all available demuxers
 155   --list-parsers           show all available parsers
 156   --list-protocols         show all available protocols
 157   --list-bsfs              show all available bitstream filters
 158   --list-indevs            show all available input devices
 159   --list-outdevs           show all available output devices
 160   --list-filters           show all available filters
 161
 162 External library support:
 163   --enable-avisynth        enable reading of AVISynth script files [no]
 164   --enable-bzlib           enable bzlib [autodetect]
 165   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 166   --enable-frei0r          enable frei0r video filtering
 167   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 168   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 169   --enable-libopencv       enable video filtering via libopencv [no]
 170   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 171                            and libraw1394 [no]
 172   --enable-libdirac        enable Dirac support via libdirac [no]
 173   --enable-libfaac         enable FAAC support via libfaac [no]
 174   --enable-libfreetype     enable libfreetype [no]
 175   --enable-libgsm          enable GSM support via libgsm [no]
 176   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 177   --enable-libnut          enable NUT (de)muxing via libnut,
 178                            native (de)muxer exists [no]
 179   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 180   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 181   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 182   --enable-libspeex        enable Speex encoding and decoding via libspeex [no]
 183   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 184   --enable-libtheora       enable Theora encoding via libtheora [no]
 185   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 186   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 187   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 188                            native implementation exists [no]
 189   --enable-libvpx          enable VP8 support via libvpx [no]
 190   --enable-libx264         enable H.264 encoding via x264 [no]
 191   --enable-libxavs         enable AVS encoding via xavs [no]
 192   --enable-libxvid         enable Xvid encoding via xvidcore,
 193                            native MPEG-4/Xvid encoder exists [no]
 194   --enable-openal          enable OpenAL 1.1 capture support [no]
 195   --enable-mlib            enable Sun medialib [no]
 196   --enable-zlib            enable zlib [autodetect]
 197
 198 Advanced options (experts only):
 199   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 200   --enable-cross-compile   assume a cross-compiler is used
 201   --sysroot=PATH           root of cross-build tree
 202   --sysinclude=PATH        location of cross-build system headers
 203   --target-os=OS           compiler targets OS [$target_os]
 204   --target-exec=CMD        command to run executables on target
 205   --target-path=DIR        path to view of build directory on target
 206   --nm=NM                  use nm tool
 207   --ar=AR                  use archive tool AR [$ar_default]
 208   --as=AS                  use assembler AS [$as_default]
 209   --cc=CC                  use C compiler CC [$cc_default]
 210   --cxx=CXX                use C compiler CXX [$cxx_default]
 211   --ld=LD                  use linker LD
 212   --host-cc=HOSTCC         use host C compiler HOSTCC
 213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 215   --host-libs=HLIBS        use libs HLIBS when linking for host
 216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 217   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 218   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 219   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 220   --extra-version=STRING   version string suffix []
 221   --build-suffix=SUFFIX    library name suffix []
 222   --progs-suffix=SUFFIX    program name suffix []
 223   --arch=ARCH              select architecture [$arch]
 224   --cpu=CPU                select the minimum required CPU (affects
 225                            instruction selection, may crash on older CPUs)
 226   --disable-asm            disable all assembler optimizations
 227   --disable-altivec        disable AltiVec optimizations
 228   --disable-amd3dnow       disable 3DNow! optimizations
 229   --disable-amd3dnowext    disable 3DNow! extended optimizations
 230   --disable-mmx            disable MMX optimizations
 231   --disable-mmx2           disable MMX2 optimizations
 232   --disable-sse            disable SSE optimizations
 233   --disable-ssse3          disable SSSE3 optimizations
 234   --disable-avx            disable AVX optimizations
 235   --disable-armv5te        disable armv5te optimizations
 236   --disable-armv6          disable armv6 optimizations
 237   --disable-armv6t2        disable armv6t2 optimizations
 238   --disable-armvfp         disable ARM VFP optimizations
 239   --disable-iwmmxt         disable iwmmxt optimizations
 240   --disable-mmi            disable MMI optimizations
 241   --disable-neon           disable neon optimizations
 242   --disable-vis            disable VIS optimizations
 243   --disable-yasm           disable use of yasm assembler
 244   --enable-pic             build position-independent code
 245   --malloc-prefix=PFX      prefix malloc and related names with PFX
 246   --enable-sram            allow use of on-chip SRAM
 247   --disable-symver         disable symbol versioning
 248   --optflags               override optimization-related compiler flags
 249
 250 Developer options (useful when working on FFmpeg itself):
 251   --disable-debug          disable debugging symbols
 252   --enable-debug=LEVEL     set the debug level [$debuglevel]
 253   --disable-optimizations  disable compiler optimizations
 254   --enable-extra-warnings  enable more compiler warnings
 255   --disable-stripping      disable stripping of executables and shared libraries
 256   --samples=PATH           location of test samples for FATE, if not set use
 257                            \$FATE_SAMPLES at make invocation time.
 258
 259 NOTE: Object files are built at the place where configure is launched.
 260 EOF
 261   exit 0
 262 }
 263
 264 quotes='""'
 265
 266 log(){
 267     echo "$@" >> $logfile
 268 }
 269
 270 log_file(){
 271     log BEGIN $1
 272     pr -n -t $1 >> $logfile
 273     log END $1
 274 }
 275
 276 echolog(){
 277     log "$@"
 278     echo "$@"
 279 }
 280
 281 warn(){
 282     log "WARNING: $*"
 283     WARNINGS="${WARNINGS}WARNING: $*\n"
 284 }
 285
 286 die(){
 287     echolog "$@"
 288     cat <<EOF
 289
 290 If you think configure made a mistake, make sure you are using the latest
 291 version from Git.  If the latest version fails, report the problem to the
 292 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 293 EOF
 294     if disabled logging; then
 295         cat <<EOF
 296 Rerun configure with logging enabled (do not use --disable-logging), and
 297 include the log this produces with your report.
 298 EOF
 299     else
 300 cat <<EOF
 301 Include the log file "$logfile" produced by configure as this will help
 302 solving the problem.
 303 EOF
 304     fi
 305     exit 1
 306 }
 307
 308 # Avoid locale weirdness, besides we really just want to translate ASCII.
 309 toupper(){
 310     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 311 }
 312
 313 tolower(){
 314     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 315 }
 316
 317 c_escape(){
 318     echo "$*" | sed 's/["\\]/\\\0/g'
 319 }
 320
 321 sh_quote(){
 322     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 323     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 324     echo "$v"
 325 }
 326
 327 cleanws(){
 328     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 329 }
 330
 331 filter(){
 332     pat=$1
 333     shift
 334     for v; do
 335         eval "case $v in $pat) echo $v ;; esac"
 336     done
 337 }
 338
 339 filter_out(){
 340     pat=$1
 341     shift
 342     for v; do
 343         eval "case $v in $pat) ;; *) echo $v ;; esac"
 344     done
 345 }
 346
 347 map(){
 348     m=$1
 349     shift
 350     for v; do eval $m; done
 351 }
 352
 353 set_all(){
 354     value=$1
 355     shift
 356     for var in $*; do
 357         eval $var=$value
 358     done
 359 }
 360
 361 set_weak(){
 362     value=$1
 363     shift
 364     for var; do
 365         eval : \${$var:=$value}
 366     done
 367 }
 368
 369 set_safe(){
 370     var=$1
 371     shift
 372     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 373 }
 374
 375 get_safe(){
 376     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 377 }
 378
 379 pushvar(){
 380     for var in $*; do
 381         eval level=\${${var}_level:=0}
 382         eval ${var}_${level}="\$$var"
 383         eval ${var}_level=$(($level+1))
 384     done
 385 }
 386
 387 popvar(){
 388     for var in $*; do
 389         eval level=\${${var}_level:-0}
 390         test $level = 0 && continue
 391         eval level=$(($level-1))
 392         eval $var="\${${var}_${level}}"
 393         eval ${var}_level=$level
 394         eval unset ${var}_${level}
 395     done
 396 }
 397
 398 enable(){
 399     set_all yes $*
 400 }
 401
 402 disable(){
 403     set_all no $*
 404 }
 405
 406 enable_weak(){
 407     set_weak yes $*
 408 }
 409
 410 disable_weak(){
 411     set_weak no $*
 412 }
 413
 414 enable_safe(){
 415     for var; do
 416         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 417     done
 418 }
 419
 420 disable_safe(){
 421     for var; do
 422         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 423     done
 424 }
 425
 426 do_enable_deep(){
 427     for var; do
 428         enabled $var && continue
 429         eval sel="\$${var}_select"
 430         eval sgs="\$${var}_suggest"
 431         pushvar var sgs
 432         enable_deep $sel
 433         popvar sgs
 434         enable_deep_weak $sgs
 435         popvar var
 436     done
 437 }
 438
 439 enable_deep(){
 440     do_enable_deep $*
 441     enable $*
 442 }
 443
 444 enable_deep_weak(){
 445     do_enable_deep $*
 446     enable_weak $*
 447 }
 448
 449 enabled(){
 450     test "${1#!}" = "$1" && op== || op=!=
 451     eval test "x\$${1#!}" $op "xyes"
 452 }
 453
 454 disabled(){
 455     test "${1#!}" = "$1" && op== || op=!=
 456     eval test "x\$${1#!}" $op "xno"
 457 }
 458
 459 enabled_all(){
 460     for opt; do
 461         enabled $opt || return 1
 462     done
 463 }
 464
 465 disabled_all(){
 466     for opt; do
 467         disabled $opt || return 1
 468     done
 469 }
 470
 471 enabled_any(){
 472     for opt; do
 473         enabled $opt && return 0
 474     done
 475 }
 476
 477 disabled_any(){
 478     for opt; do
 479         disabled $opt && return 0
 480     done
 481     return 1
 482 }
 483
 484 set_default(){
 485     for opt; do
 486         eval : \${$opt:=\$${opt}_default}
 487     done
 488 }
 489
 490 is_in(){
 491     value=$1
 492     shift
 493     for var in $*; do
 494         [ $var = $value ] && return 0
 495     done
 496     return 1
 497 }
 498
 499 check_deps(){
 500     for cfg; do
 501         cfg="${cfg#!}"
 502         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 503         disabled ${cfg}_checking && continue
 504         enable ${cfg}_checking
 505
 506         eval dep_all="\$${cfg}_deps"
 507         eval dep_any="\$${cfg}_deps_any"
 508         eval dep_sel="\$${cfg}_select"
 509         eval dep_sgs="\$${cfg}_suggest"
 510         eval dep_ifa="\$${cfg}_if"
 511         eval dep_ifn="\$${cfg}_if_any"
 512
 513         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 514         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 515         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 516
 517         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 518         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 519         enabled_all  $dep_all || disable $cfg
 520         enabled_any  $dep_any || disable $cfg
 521         disabled_any $dep_sel && disable $cfg
 522
 523         if enabled $cfg; then
 524             eval dep_extralibs="\$${cfg}_extralibs"
 525             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 526             enable_deep $dep_sel
 527             enable_deep_weak $dep_sgs
 528         fi
 529
 530         disable ${cfg}_checking
 531     done
 532 }
 533
 534 print_config_h(){
 535     enabled $1 && v=1 || v=0
 536     echo "#define $2 $v"
 537 }
 538
 539 print_config_mak(){
 540     enabled $1 && v= || v=!
 541     echo "$v$2=yes"
 542 }
 543
 544 print_config_asm(){
 545     enabled $1 && echo "%define $2"
 546 }
 547
 548 print_config(){
 549     pfx=$1
 550     files=$2
 551     shift 2
 552     for cfg; do
 553         ucname="$(toupper $cfg)"
 554         for f in $files; do
 555             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 556         done
 557     done
 558 }
 559
 560 print_enabled(){
 561     test "$1" = -n && end=" " && shift || end="\n"
 562     suf=$1
 563     shift
 564     for v; do
 565         enabled $v && printf "%s$end" ${v%$suf};
 566     done
 567 }
 568
 569 append(){
 570     var=$1
 571     shift
 572     eval "$var=\"\$$var $*\""
 573 }
 574
 575 prepend(){
 576     var=$1
 577     shift
 578     eval "$var=\"$* \$$var\""
 579 }
 580
 581 add_cppflags(){
 582     append CPPFLAGS $($filter_cppflags "$@")
 583 }
 584
 585 add_cflags(){
 586     append CFLAGS $($filter_cflags "$@")
 587 }
 588
 589 add_cxxflags(){
 590     append CXXFLAGS $($filter_cflags "$@")
 591 }
 592
 593 add_asflags(){
 594     append ASFLAGS $($filter_asflags "$@")
 595 }
 596
 597 add_ldflags(){
 598     append LDFLAGS "$@"
 599 }
 600
 601 add_extralibs(){
 602     prepend extralibs "$@"
 603 }
 604
 605 check_cmd(){
 606     log "$@"
 607     "$@" >> $logfile 2>&1
 608 }
 609
 610 check_cc(){
 611     log check_cc "$@"
 612     cat > $TMPC
 613     log_file $TMPC
 614     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 615 }
 616
 617 check_cxx(){
 618     log check_cxx "$@"
 619     cat > $TMPCPP
 620     log_file $TMPCPP
 621     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
 622 }
 623
 624 check_cpp(){
 625     log check_cpp "$@"
 626     cat > $TMPC
 627     log_file $TMPC
 628     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 629 }
 630
 631 check_as(){
 632     log check_as "$@"
 633     cat > $TMPC
 634     log_file $TMPC
 635     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 636 }
 637
 638 check_asm(){
 639     log check_asm "$@"
 640     name="$1"
 641     code="$2"
 642     shift 2
 643     disable $name
 644     check_as "$@" <<EOF && enable $name
 645 void foo(void){ __asm__ volatile($code); }
 646 EOF
 647 }
 648
 649 check_yasm(){
 650     log check_yasm "$@"
 651     echo "$1" > $TMPS
 652     log_file $TMPS
 653     shift 1
 654     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 655 }
 656
 657 check_ld(){
 658     log check_ld "$@"
 659     type=$1
 660     shift 1
 661     flags=''
 662     libs=''
 663     for f; do
 664         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 665     done
 666     check_$type $($filter_cflags $flags) || return
 667     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 668 }
 669
 670 check_cppflags(){
 671     log check_cppflags "$@"
 672     set -- $($filter_cppflags "$@")
 673     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 674 int x;
 675 EOF
 676 }
 677
 678 check_cflags(){
 679     log check_cflags "$@"
 680     set -- $($filter_cflags "$@")
 681     check_cc "$@" <<EOF && append CFLAGS "$@"
 682 int x;
 683 EOF
 684 }
 685
 686 check_cxxflags(){
 687     log check_cxxflags "$@"
 688     set -- $($filter_cflags "$@")
 689     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 690 int x;
 691 EOF
 692 }
 693
 694 test_ldflags(){
 695     log test_ldflags "$@"
 696     check_ld "cc" "$@" <<EOF
 697 int main(void){ return 0; }
 698 EOF
 699 }
 700
 701 check_ldflags(){
 702     log check_ldflags "$@"
 703     test_ldflags "$@" && add_ldflags "$@"
 704 }
 705
 706 check_header(){
 707     log check_header "$@"
 708     header=$1
 709     shift
 710     disable_safe $header
 711     check_cpp "$@" <<EOF && enable_safe $header
 712 #include <$header>
 713 int x;
 714 EOF
 715 }
 716
 717 check_func(){
 718     log check_func "$@"
 719     func=$1
 720     shift
 721     disable $func
 722     check_ld "cc" "$@" <<EOF && enable $func
 723 extern int $func();
 724 int main(void){ $func(); }
 725 EOF
 726 }
 727
 728 check_mathfunc(){
 729     log check_mathfunc "$@"
 730     func=$1
 731     shift
 732     disable $func
 733     check_ld "cc" "$@" <<EOF && enable $func
 734 #include <math.h>
 735 float foo(float f) { return $func(f); }
 736 int main(void){ return (int) foo; }
 737 EOF
 738 }
 739
 740 check_func_headers(){
 741     log check_func_headers "$@"
 742     headers=$1
 743     funcs=$2
 744     shift 2
 745     {
 746         for hdr in $headers; do
 747             echo "#include <$hdr>"
 748         done
 749         for func in $funcs; do
 750             echo "long check_$func(void) { return (long) $func; }"
 751         done
 752         echo "int main(void) { return 0; }"
 753     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 754 }
 755
 756 check_class_headers_cpp(){
 757     log check_class_headers_cpp "$@"
 758     headers=$1
 759     classes=$2
 760     shift 2
 761     {
 762         for hdr in $headers; do
 763             echo "#include <$hdr>"
 764         done
 765         echo "int main(void) { "
 766         i=1
 767         for class in $classes; do
 768             echo "$class obj$i;"
 769             i=$(expr $i + 1)
 770         done
 771         echo "return 0; }"
 772     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 773 }
 774
 775 check_cpp_condition(){
 776     log check_cpp_condition "$@"
 777     header=$1
 778     condition=$2
 779     shift 2
 780     check_cpp $($filter_cppflags "$@") <<EOF
 781 #include <$header>
 782 #if !($condition)
 783 #error "unsatisfied condition: $condition"
 784 #endif
 785 EOF
 786 }
 787
 788 check_lib(){
 789     log check_lib "$@"
 790     header="$1"
 791     func="$2"
 792     shift 2
 793     check_header $header && check_func $func "$@" && add_extralibs "$@"
 794 }
 795
 796 check_lib2(){
 797     log check_lib2 "$@"
 798     headers="$1"
 799     funcs="$2"
 800     shift 2
 801     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 802 }
 803
 804 check_lib_cpp(){
 805     log check_lib_cpp "$@"
 806     headers="$1"
 807     classes="$2"
 808     shift 2
 809     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 810 }
 811
 812 check_pkg_config(){
 813     log check_pkg_config "$@"
 814     pkg="$1"
 815     headers="$2"
 816     funcs="$3"
 817     shift 3
 818     $pkg_config --exists $pkg 2>/dev/null || return
 819     pkg_cflags=$($pkg_config --cflags $pkg)
 820     pkg_libs=$($pkg_config --libs $pkg)
 821     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 822         set_safe ${pkg}_cflags $pkg_cflags   &&
 823         set_safe ${pkg}_libs   $pkg_libs
 824 }
 825
 826 check_exec(){
 827     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 828 }
 829
 830 check_exec_crash(){
 831     code=$(cat)
 832
 833     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 834     # are safe but may not be available everywhere.  Thus we use
 835     # raise(SIGTERM) instead.  The check is run in a subshell so we
 836     # can redirect the "Terminated" message from the shell.  SIGBUS
 837     # is not defined by standard C so it is used conditionally.
 838
 839     (check_exec "$@") >> $logfile 2>&1 <<EOF
 840 #include <signal.h>
 841 static void sighandler(int sig){
 842     raise(SIGTERM);
 843 }
 844 int main(void){
 845     signal(SIGILL, sighandler);
 846     signal(SIGFPE, sighandler);
 847     signal(SIGSEGV, sighandler);
 848 #ifdef SIGBUS
 849     signal(SIGBUS, sighandler);
 850 #endif
 851     { $code }
 852 }
 853 EOF
 854 }
 855
 856 check_type(){
 857     log check_type "$@"
 858     headers=$1
 859     type=$2
 860     shift 2
 861     disable_safe "$type"
 862     incs=""
 863     for hdr in $headers; do
 864         incs="$incs
 865 #include <$hdr>"
 866     done
 867     check_cc "$@" <<EOF && enable_safe "$type"
 868 $incs
 869 $type v;
 870 EOF
 871 }
 872
 873 check_struct(){
 874     log check_type "$@"
 875     headers=$1
 876     struct=$2
 877     member=$3
 878     shift 3
 879     disable_safe "${struct}_${member}"
 880     incs=""
 881     for hdr in $headers; do
 882         incs="$incs
 883 #include <$hdr>"
 884     done
 885     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 886 $incs
 887 const void *p = &(($struct *)0)->$member;
 888 EOF
 889 }
 890
 891 require(){
 892     name="$1"
 893     header="$2"
 894     func="$3"
 895     shift 3
 896     check_lib $header $func "$@" || die "ERROR: $name not found"
 897 }
 898
 899 require2(){
 900     name="$1"
 901     headers="$2"
 902     func="$3"
 903     shift 3
 904     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 905 }
 906
 907 require_cpp(){
 908     name="$1"
 909     headers="$2"
 910     classes="$3"
 911     shift 3
 912     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
 913 }
 914
 915 require_pkg_config(){
 916     pkg="$1"
 917     check_pkg_config "$@" || die "ERROR: $pkg not found"
 918     add_cflags    $(get_safe ${pkg}_cflags)
 919     add_extralibs $(get_safe ${pkg}_libs)
 920 }
 921
 922 check_host_cc(){
 923     log check_host_cc "$@"
 924     cat > $TMPC
 925     log_file $TMPC
 926     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 927 }
 928
 929 check_host_cflags(){
 930     log check_host_cflags "$@"
 931     check_host_cc "$@" <<EOF && append host_cflags "$@"
 932 int x;
 933 EOF
 934 }
 935
 936 apply(){
 937     file=$1
 938     shift
 939     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 940 }
 941
 942 cp_if_changed(){
 943     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 944     mkdir -p "$(dirname $2)"
 945     cp -f "$1" "$2"
 946 }
 947
 948 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 949 # system-dependent things.
 950
 951 COMPONENT_LIST="
 952     bsfs
 953     decoders
 954     demuxers
 955     encoders
 956     filters
 957     hwaccels
 958     indevs
 959     muxers
 960     outdevs
 961     parsers
 962     protocols
 963 "
 964
 965 CONFIG_LIST="
 966     $COMPONENT_LIST
 967     aandct
 968     ac3dsp
 969     avcodec
 970     avdevice
 971     avfilter
 972     avformat
 973     avisynth
 974     bzlib
 975     crystalhd
 976     dct
 977     doc
 978     dwt
 979     dxva2
 980     fastdiv
 981     ffmpeg
 982     avconv
 983     ffplay
 984     ffprobe
 985     ffserver
 986     fft
 987     frei0r
 988     golomb
 989     gpl
 990     gray
 991     h264dsp
 992     h264pred
 993     hardcoded_tables
 994     huffman
 995     libcelt
 996     libdc1394
 997     libdirac
 998     libfaac
 999     libfreetype
1000     libgsm
1001     libmp3lame
1002     libnut
1003     libopencore_amrnb
1004     libopencore_amrwb
1005     libopencv
1006     libopenjpeg
1007     librtmp
1008     libschroedinger
1009     libspeex
1010     libstagefright_h264
1011     libtheora
1012     libvo_aacenc
1013     libvo_amrwbenc
1014     libvorbis
1015     libvpx
1016     libx264
1017     libxavs
1018     libxvid
1019     lpc
1020     lsp
1021     mdct
1022     memalign_hack
1023     mlib
1024     mpegaudiodsp
1025     network
1026     nonfree
1027     openal
1028     pic
1029     postproc
1030     rdft
1031     rtpdec
1032     runtime_cpudetect
1033     shared
1034     sinewin
1035     small
1036     sram
1037     static
1038     swscale
1039     swscale_alpha
1040     thumb
1041     vaapi
1042     vdpau
1043     version2
1044     version3
1045     x11grab
1046     zlib
1047 "
1048
1049 THREADS_LIST='
1050     pthreads
1051     w32threads
1052 '
1053
1054 ARCH_LIST='
1055     alpha
1056     arm
1057     avr32
1058     avr32_ap
1059     avr32_uc
1060     bfin
1061     ia64
1062     m68k
1063     mips
1064     mips64
1065     parisc
1066     ppc
1067     ppc64
1068     s390
1069     sh4
1070     sparc
1071     sparc64
1072     tomi
1073     x86
1074     x86_32
1075     x86_64
1076 '
1077
1078 ARCH_EXT_LIST='
1079     altivec
1080     amd3dnow
1081     amd3dnowext
1082     armv5te
1083     armv6
1084     armv6t2
1085     armvfp
1086     avx
1087     iwmmxt
1088     mmi
1089     mmx
1090     mmx2
1091     neon
1092     ppc4xx
1093     sse
1094     ssse3
1095     vfpv3
1096     vis
1097 '
1098
1099 HAVE_LIST_PUB='
1100     bigendian
1101     fast_unaligned
1102 '
1103
1104 HAVE_LIST="
1105     $ARCH_EXT_LIST
1106     $HAVE_LIST_PUB
1107     $THREADS_LIST
1108     aligned_stack
1109     alsa_asoundlib_h
1110     altivec_h
1111     arpa_inet_h
1112     attribute_may_alias
1113     attribute_packed
1114     bswap
1115     closesocket
1116     cmov
1117     dcbzl
1118     dev_bktr_ioctl_bt848_h
1119     dev_bktr_ioctl_meteor_h
1120     dev_ic_bt8xx_h
1121     dev_video_meteor_ioctl_meteor_h
1122     dev_video_bktr_ioctl_bt848_h
1123     dlfcn_h
1124     dlopen
1125     dos_paths
1126     ebp_available
1127     ebx_available
1128     exp2
1129     exp2f
1130     fast_64bit
1131     fast_clz
1132     fast_cmov
1133     fcntl
1134     fork
1135     getaddrinfo
1136     gethrtime
1137     GetProcessMemoryInfo
1138     GetProcessTimes
1139     getrusage
1140     gnu_as
1141     struct_rusage_ru_maxrss
1142     ibm_asm
1143     inet_aton
1144     inline_asm
1145     isatty
1146     kbhit
1147     ldbrx
1148     llrint
1149     llrintf
1150     local_aligned_16
1151     local_aligned_8
1152     localtime_r
1153     log2
1154     log2f
1155     loongson
1156     lrint
1157     lrintf
1158     lzo1x_999_compress
1159     machine_ioctl_bt848_h
1160     machine_ioctl_meteor_h
1161     malloc_h
1162     MapViewOfFile
1163     memalign
1164     mkstemp
1165     mmap
1166     PeekNamedPipe
1167     posix_memalign
1168     round
1169     roundf
1170     sdl
1171     sdl_video_size
1172     setmode
1173     sndio_h
1174     socklen_t
1175     soundcard_h
1176     poll_h
1177     setrlimit
1178     strerror_r
1179     strptime
1180     strtok_r
1181     struct_addrinfo
1182     struct_ipv6_mreq
1183     struct_sockaddr_in6
1184     struct_sockaddr_sa_len
1185     struct_sockaddr_storage
1186     symver
1187     symver_gnu_asm
1188     symver_asm_label
1189     sys_mman_h
1190     sys_resource_h
1191     sys_select_h
1192     sys_soundcard_h
1193     sys_videoio_h
1194     termios_h
1195     threads
1196     trunc
1197     truncf
1198     vfp_args
1199     VirtualAlloc
1200     winsock2_h
1201     xform_asm
1202     xmm_clobbers
1203     yasm
1204 "
1205
1206 # options emitted with CONFIG_ prefix but not available on command line
1207 CONFIG_EXTRA="
1208     avutil
1209     gplv3
1210     gplv2
1211     lgplv3
1212 "
1213
1214 CMDLINE_SELECT="
1215     $ARCH_EXT_LIST
1216     $CONFIG_LIST
1217     $THREADS_LIST
1218     asm
1219     cross_compile
1220     debug
1221     extra_warnings
1222     logging
1223     optimizations
1224     stripping
1225     symver
1226     yasm
1227 "
1228
1229 PATHS_LIST='
1230     bindir
1231     datadir
1232     incdir
1233     libdir
1234     mandir
1235     prefix
1236     shlibdir
1237 '
1238
1239 CMDLINE_SET="
1240     $PATHS_LIST
1241     ar
1242     arch
1243     as
1244     build_suffix
1245     progs_suffix
1246     cc
1247     cpu
1248     cross_prefix
1249     cxx
1250     dep_cc
1251     extra_version
1252     host_cc
1253     host_cflags
1254     host_ldflags
1255     host_libs
1256     host_os
1257     install
1258     ld
1259     logfile
1260     malloc_prefix
1261     nm
1262     optflags
1263     pkg_config
1264     samples
1265     strip
1266     sysinclude
1267     sysroot
1268     target_exec
1269     target_os
1270     target_path
1271 "
1272
1273 CMDLINE_APPEND="
1274     extra_cflags
1275     extra_cxxflags
1276 "
1277
1278 # code dependency declarations
1279
1280 # architecture extensions
1281
1282 armv5te_deps="arm"
1283 armv6_deps="arm"
1284 armv6t2_deps="arm"
1285 armvfp_deps="arm"
1286 iwmmxt_deps="arm"
1287 neon_deps="arm"
1288 vfpv3_deps="armvfp"
1289
1290 mmi_deps="mips"
1291
1292 altivec_deps="ppc"
1293 ppc4xx_deps="ppc"
1294
1295 vis_deps="sparc"
1296
1297 x86_64_suggest="cmov fast_cmov"
1298 amd3dnow_deps="mmx"
1299 amd3dnowext_deps="amd3dnow"
1300 mmx_deps="x86"
1301 mmx2_deps="mmx"
1302 sse_deps="mmx"
1303 ssse3_deps="sse"
1304 avx_deps="ssse3"
1305
1306 aligned_stack_if_any="ppc x86"
1307 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1308 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1309 fast_unaligned_if_any="armv6 ppc x86"
1310
1311 need_memalign="altivec neon sse"
1312 inline_asm_deps="!tms470"
1313
1314 symver_if_any="symver_asm_label symver_gnu_asm"
1315
1316 # subsystems
1317 dct_select="rdft"
1318 mdct_select="fft"
1319 rdft_select="fft"
1320 mpegaudiodsp_select="dct"
1321
1322 # decoders / encoders / hardware accelerators
1323 aac_decoder_select="mdct sinewin"
1324 aac_encoder_select="mdct sinewin"
1325 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1326 ac3_decoder_select="mdct ac3dsp ac3_parser"
1327 ac3_encoder_select="mdct ac3dsp"
1328 ac3_fixed_encoder_select="mdct ac3dsp"
1329 alac_encoder_select="lpc"
1330 amrnb_decoder_select="lsp"
1331 amrwb_decoder_select="lsp"
1332 atrac1_decoder_select="mdct sinewin"
1333 atrac3_decoder_select="mdct"
1334 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1335 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1336 cavs_decoder_select="golomb"
1337 cook_decoder_select="mdct sinewin"
1338 cscd_decoder_suggest="zlib"
1339 dca_decoder_select="mdct"
1340 dnxhd_encoder_select="aandct"
1341 dxa_decoder_select="zlib"
1342 eac3_decoder_select="ac3_decoder"
1343 eac3_encoder_select="mdct ac3dsp"
1344 eamad_decoder_select="aandct"
1345 eatgq_decoder_select="aandct"
1346 eatqi_decoder_select="aandct"
1347 ffv1_decoder_select="golomb"
1348 flac_decoder_select="golomb"
1349 flac_encoder_select="golomb lpc"
1350 flashsv_decoder_select="zlib"
1351 flashsv_encoder_select="zlib"
1352 flashsv2_encoder_select="zlib"
1353 flashsv2_decoder_select="zlib"
1354 flv_decoder_select="h263_decoder"
1355 flv_encoder_select="h263_encoder"
1356 fraps_decoder_select="huffman"
1357 h261_encoder_select="aandct"
1358 h263_decoder_select="h263_parser"
1359 h263_encoder_select="aandct"
1360 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1361 h263i_decoder_select="h263_decoder"
1362 h263p_encoder_select="h263_encoder"
1363 h264_decoder_select="golomb h264dsp h264pred"
1364 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1365 h264_dxva2_hwaccel_deps="dxva2api_h"
1366 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1367 h264_vaapi_hwaccel_select="vaapi"
1368 h264_vdpau_decoder_select="vdpau h264_decoder"
1369 imc_decoder_select="fft mdct sinewin"
1370 jpegls_decoder_select="golomb"
1371 jpegls_encoder_select="golomb"
1372 ljpeg_encoder_select="aandct"
1373 loco_decoder_select="golomb"
1374 mjpeg_encoder_select="aandct"
1375 mlp_decoder_select="mlp_parser"
1376 mp1_decoder_select="mpegaudiodsp"
1377 mp2_decoder_select="mpegaudiodsp"
1378 mp3adu_decoder_select="mpegaudiodsp"
1379 mp3_decoder_select="mpegaudiodsp"
1380 mp3on4_decoder_select="mpegaudiodsp"
1381 mp1float_decoder_select="mpegaudiodsp"
1382 mp2float_decoder_select="mpegaudiodsp"
1383 mp3adufloat_decoder_select="mpegaudiodsp"
1384 mp3float_decoder_select="mpegaudiodsp"
1385 mp3on4float_decoder_select="mpegaudiodsp"
1386 mpeg1video_encoder_select="aandct"
1387 mpeg2video_encoder_select="aandct"
1388 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1389 mpeg4_encoder_select="h263_encoder"
1390 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1391 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1392 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1393 mpeg2_crystalhd_decoder_select="crystalhd"
1394 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1395 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1396 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1397 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1398 mpeg4_crystalhd_decoder_select="crystalhd"
1399 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1400 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1401 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1402 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1403 msmpeg4_crystalhd_decoder_select="crystalhd"
1404 msmpeg4v1_decoder_select="h263_decoder"
1405 msmpeg4v1_encoder_select="h263_encoder"
1406 msmpeg4v2_decoder_select="h263_decoder"
1407 msmpeg4v2_encoder_select="h263_encoder"
1408 msmpeg4v3_decoder_select="h263_decoder"
1409 msmpeg4v3_encoder_select="h263_encoder"
1410 nellymoser_decoder_select="mdct sinewin"
1411 nellymoser_encoder_select="mdct sinewin"
1412 png_decoder_select="zlib"
1413 png_encoder_select="zlib"
1414 prores_decoder_deps="version2 gpl"
1415 qcelp_decoder_select="lsp"
1416 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1417 ra_144_encoder_select="lpc"
1418 rv10_decoder_select="h263_decoder"
1419 rv10_encoder_select="h263_encoder"
1420 rv20_decoder_select="h263_decoder"
1421 rv20_encoder_select="h263_encoder"
1422 rv30_decoder_select="golomb h264pred"
1423 rv40_decoder_select="golomb h264pred"
1424 shorten_decoder_select="golomb"
1425 sipr_decoder_select="lsp"
1426 snow_decoder_select="dwt"
1427 snow_encoder_select="aandct dwt"
1428 sonic_decoder_select="golomb"
1429 sonic_encoder_select="golomb"
1430 sonic_ls_encoder_select="golomb"
1431 svq1_encoder_select="aandct"
1432 svq3_decoder_select="golomb h264dsp h264pred"
1433 svq3_decoder_suggest="zlib"
1434 theora_decoder_select="vp3_decoder"
1435 tiff_decoder_suggest="zlib"
1436 tiff_encoder_suggest="zlib"
1437 truehd_decoder_select="mlp_decoder"
1438 tscc_decoder_select="zlib"
1439 twinvq_decoder_select="mdct lsp sinewin"
1440 vc1_decoder_select="h263_decoder"
1441 vc1_crystalhd_decoder_select="crystalhd"
1442 vc1_dxva2_hwaccel_deps="dxva2api_h"
1443 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1444 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1445 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1446 vc1image_decoder_select="vc1_decoder"
1447 vorbis_decoder_select="mdct"
1448 vorbis_encoder_select="mdct"
1449 vp6_decoder_select="huffman"
1450 vp6a_decoder_select="vp6_decoder"
1451 vp6f_decoder_select="vp6_decoder"
1452 vp8_decoder_select="h264pred"
1453 wmapro_decoder_select="mdct sinewin"
1454 wmav1_decoder_select="mdct sinewin"
1455 wmav1_encoder_select="mdct sinewin"
1456 wmav2_decoder_select="mdct sinewin"
1457 wmav2_encoder_select="mdct sinewin"
1458 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1459 wmv1_decoder_select="h263_decoder"
1460 wmv1_encoder_select="h263_encoder"
1461 wmv2_decoder_select="h263_decoder"
1462 wmv2_encoder_select="h263_encoder"
1463 wmv3_decoder_select="vc1_decoder"
1464 wmv3_crystalhd_decoder_select="crystalhd"
1465 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1466 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1467 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1468 wmv3image_decoder_select="wmv3_decoder"
1469 zlib_decoder_select="zlib"
1470 zlib_encoder_select="zlib"
1471 zmbv_decoder_select="zlib"
1472 zmbv_encoder_select="zlib"
1473
1474 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1475 vaapi_deps="va_va_h"
1476 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1477
1478 # parsers
1479 h264_parser_select="golomb h264dsp h264pred"
1480
1481 # external libraries
1482 libcelt_decoder_deps="libcelt"
1483 libdirac_decoder_deps="libdirac !libschroedinger"
1484 libdirac_encoder_deps="libdirac"
1485 libfaac_encoder_deps="libfaac"
1486 libgsm_decoder_deps="libgsm"
1487 libgsm_encoder_deps="libgsm"
1488 libgsm_ms_decoder_deps="libgsm"
1489 libgsm_ms_encoder_deps="libgsm"
1490 libmp3lame_encoder_deps="libmp3lame"
1491 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1492 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1493 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1494 libopenjpeg_decoder_deps="libopenjpeg"
1495 libschroedinger_decoder_deps="libschroedinger"
1496 libschroedinger_encoder_deps="libschroedinger"
1497 libspeex_decoder_deps="libspeex"
1498 libspeex_encoder_deps="libspeex"
1499 libstagefright_h264_decoder_deps="libstagefright_h264"
1500 libtheora_encoder_deps="libtheora"
1501 libvo_aacenc_encoder_deps="libvo_aacenc"
1502 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1503 libvorbis_encoder_deps="libvorbis"
1504 libvpx_decoder_deps="libvpx"
1505 libvpx_encoder_deps="libvpx"
1506 libx264_encoder_deps="libx264"
1507 libxavs_encoder_deps="libxavs"
1508 libxvid_encoder_deps="libxvid"
1509
1510 # demuxers / muxers
1511 ac3_demuxer_select="ac3_parser"
1512 asf_stream_muxer_select="asf_muxer"
1513 avisynth_demuxer_deps="avisynth"
1514 dirac_demuxer_select="dirac_parser"
1515 eac3_demuxer_select="ac3_parser"
1516 flac_demuxer_select="flac_parser"
1517 ipod_muxer_select="mov_muxer"
1518 libnut_demuxer_deps="libnut"
1519 libnut_muxer_deps="libnut"
1520 matroska_audio_muxer_select="matroska_muxer"
1521 matroska_demuxer_suggest="zlib bzlib"
1522 mov_demuxer_suggest="zlib"
1523 mp3_demuxer_select="mpegaudio_parser"
1524 mp4_muxer_select="mov_muxer"
1525 mpegtsraw_demuxer_select="mpegts_demuxer"
1526 mxf_d10_muxer_select="mxf_muxer"
1527 ogg_demuxer_select="golomb"
1528 psp_muxer_select="mov_muxer"
1529 rtp_demuxer_select="sdp_demuxer"
1530 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1531 rtsp_demuxer_select="http_protocol rtpdec"
1532 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1533 sap_demuxer_select="sdp_demuxer"
1534 sap_muxer_select="rtp_muxer rtp_protocol"
1535 sdp_demuxer_select="rtpdec"
1536 spdif_muxer_select="aac_parser"
1537 tg2_muxer_select="mov_muxer"
1538 tgp_muxer_select="mov_muxer"
1539 w64_demuxer_deps="wav_demuxer"
1540
1541 # indevs / outdevs
1542 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1543 alsa_outdev_deps="alsa_asoundlib_h"
1544 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1545 dshow_indev_deps="IBaseFilter"
1546 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1547 dv1394_indev_deps="dv1394 dv_demuxer"
1548 fbdev_indev_deps="linux_fb_h"
1549 jack_indev_deps="jack_jack_h sem_timedwait"
1550 lavfi_indev_deps="avfilter"
1551 libdc1394_indev_deps="libdc1394"
1552 openal_indev_deps="openal"
1553 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1554 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1555 sdl_outdev_deps="sdl"
1556 sndio_indev_deps="sndio_h"
1557 sndio_outdev_deps="sndio_h"
1558 v4l_indev_deps="linux_videodev_h"
1559 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1560 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1561 vfwcap_indev_extralibs="-lavicap32"
1562 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1563 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1564
1565 # protocols
1566 gopher_protocol_deps="network"
1567 http_protocol_deps="network"
1568 http_protocol_select="tcp_protocol"
1569 mmsh_protocol_select="http_protocol"
1570 mmst_protocol_deps="network"
1571 rtmp_protocol_select="tcp_protocol"
1572 rtp_protocol_select="udp_protocol"
1573 tcp_protocol_deps="network"
1574 udp_protocol_deps="network"
1575
1576 # filters
1577 abuffer_filter_deps="strtok_r"
1578 aformat_filter_deps="strtok_r"
1579 amovie_filter_deps="avcodec avformat"
1580 blackframe_filter_deps="gpl"
1581 boxblur_filter_deps="gpl"
1582 cropdetect_filter_deps="gpl"
1583 delogo_filter_deps="gpl"
1584 drawtext_filter_deps="libfreetype"
1585 frei0r_filter_deps="frei0r dlopen strtok_r"
1586 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1587 hqdn3d_filter_deps="gpl"
1588 movie_filter_deps="avcodec avformat"
1589 mp_filter_deps="gpl avcodec"
1590 mptestsrc_filter_deps="gpl"
1591 negate_filter_deps="lut_filter"
1592 ocv_filter_deps="libopencv"
1593 scale_filter_deps="swscale"
1594 yadif_filter_deps="gpl"
1595
1596 # libraries
1597 avdevice_deps="avcodec avformat"
1598 avformat_deps="avcodec"
1599 postproc_deps="gpl"
1600
1601 # programs
1602 ffmpeg_deps="avcodec avformat swscale"
1603 ffmpeg_select="buffer_filter buffersink_filter"
1604 avconv_deps="avcodec avformat swscale"
1605 avconv_select="buffer_filter"
1606 ffplay_deps="avcodec avformat swscale sdl"
1607 ffplay_select="buffersink_filter rdft"
1608 ffprobe_deps="avcodec avformat"
1609 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1610 ffserver_extralibs='$ldl'
1611
1612 doc_deps="texi2html"
1613
1614 # tests
1615
1616 test_deps(){
1617     suf1=$1
1618     suf2=$2
1619     shift 2
1620     for v; do
1621         dep=${v%=*}
1622         tests=${v#*=}
1623         for name in ${tests}; do
1624             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1625         done
1626     done
1627 }
1628
1629 test_deps _encoder _decoder                                             \
1630     adpcm_g726=g726                                                     \
1631     adpcm_ima_qt                                                        \
1632     adpcm_ima_wav                                                       \
1633     adpcm_ms                                                            \
1634     adpcm_swf                                                           \
1635     adpcm_yamaha=adpcm_yam                                              \
1636     alac                                                                \
1637     asv1                                                                \
1638     asv2                                                                \
1639     bmp                                                                 \
1640     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1641     dvvideo="dv dv50"                                                   \
1642     ffv1                                                                \
1643     flac                                                                \
1644     flashsv                                                             \
1645     flv                                                                 \
1646     gif                                                                 \
1647     h261                                                                \
1648     h263="h263 h263p"                                                   \
1649     huffyuv                                                             \
1650     jpegls                                                              \
1651     mjpeg="jpg mjpeg ljpeg"                                             \
1652     mp2                                                                 \
1653     mpeg1video="mpeg mpeg1b"                                            \
1654     mpeg2video="mpeg2 mpeg2thread"                                      \
1655     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1656     msmpeg4v3=msmpeg4                                                   \
1657     msmpeg4v2                                                           \
1658     pbm=pbmpipe                                                         \
1659     pcx                                                                 \
1660     pgm="pgm pgmpipe"                                                   \
1661     png                                                                 \
1662     ppm="ppm ppmpipe"                                                   \
1663     rawvideo="rgb yuv"                                                  \
1664     roq                                                                 \
1665     rv10                                                                \
1666     rv20                                                                \
1667     sgi                                                                 \
1668     snow="snow snowll"                                                  \
1669     svq1                                                                \
1670     targa=tga                                                           \
1671     tiff                                                                \
1672     wmav1                                                               \
1673     wmav2                                                               \
1674     wmv1                                                                \
1675     wmv2                                                                \
1676
1677 test_deps _muxer _demuxer                                               \
1678     aiff                                                                \
1679     pcm_alaw=alaw                                                       \
1680     asf                                                                 \
1681     au                                                                  \
1682     avi                                                                 \
1683     dv=dv_fmt                                                           \
1684     ffm                                                                 \
1685     flv=flv_fmt                                                         \
1686     gxf                                                                 \
1687     matroska=mkv                                                        \
1688     mmf                                                                 \
1689     mov                                                                 \
1690     pcm_mulaw=mulaw                                                     \
1691     mxf="mxf mxf_d10"                                                   \
1692     nut                                                                 \
1693     ogg                                                                 \
1694     rawvideo=pixfmt                                                     \
1695     rm                                                                  \
1696     swf                                                                 \
1697     mpegts=ts                                                           \
1698     voc                                                                 \
1699     wav                                                                 \
1700     yuv4mpegpipe=yuv4mpeg                                               \
1701
1702 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1703 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1704
1705 # default parameters
1706
1707 logfile="config.log"
1708
1709 # installation paths
1710 prefix_default="/usr/local"
1711 bindir_default='${prefix}/bin'
1712 datadir_default='${prefix}/share/ffmpeg'
1713 incdir_default='${prefix}/include'
1714 libdir_default='${prefix}/lib'
1715 mandir_default='${prefix}/share/man'
1716 shlibdir_default="$libdir_default"
1717
1718 # toolchain
1719 ar_default="ar"
1720 cc_default="gcc"
1721 cxx_default="g++"
1722 cc_version=\"unknown\"
1723 host_cc_default="gcc"
1724 install="install"
1725 ln_s="ln -sf"
1726 nm_default="nm"
1727 objformat="elf"
1728 pkg_config_default=pkg-config
1729 ranlib="ranlib"
1730 strip_default="strip"
1731 yasmexe="yasm"
1732 nogas=":"
1733
1734 nm_opts='-g'
1735
1736 # machine
1737 arch_default=$(uname -m)
1738 cpu="generic"
1739
1740 # OS
1741 target_os_default=$(tolower $(uname -s))
1742 host_os=$target_os_default
1743
1744 # configurable options
1745 enable avcodec
1746 enable avdevice
1747 enable avfilter
1748 enable avformat
1749 enable avutil
1750 enable asm
1751 enable debug
1752 enable doc
1753 enable fastdiv
1754 enable ffmpeg
1755 enable avconv
1756 enable ffplay
1757 enable ffprobe
1758 enable ffserver
1759 enable network
1760 enable optimizations
1761 enable postproc
1762 enable protocols
1763 enable static
1764 enable stripping
1765 enable swscale
1766 enable swscale_alpha
1767
1768 # build settings
1769 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1770 FFSERVERLDFLAGS=-Wl,-E
1771 LIBPREF="lib"
1772 LIBSUF=".a"
1773 FULLNAME='$(NAME)$(BUILDSUF)'
1774 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1775 SLIBPREF="lib"
1776 SLIBSUF=".so"
1777 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1778 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1779 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1780 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1781 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1782 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1783
1784 AS_O='-o $@'
1785 CC_O='-o $@'
1786 CXX_O='-o $@'
1787
1788 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1789 host_libs='-lm'
1790
1791 target_path='$(CURDIR)'
1792
1793 # since the object filename is not given with the -MM flag, the compiler
1794 # is only able to print the basename, and we must add the path ourselves
1795 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1796 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1797
1798 # find source path
1799 if test -f configure; then
1800     source_path=.
1801 else
1802     source_path=$(cd $(dirname "$0"); pwd)
1803     echo "$source_path" | grep -q '[[:blank:]]' &&
1804         die "Out of tree builds are impossible with whitespace in source path."
1805     test -e "$source_path/config.h" &&
1806         die "Out of tree builds are impossible with config.h in source dir."
1807 fi
1808
1809 for v in "$@"; do
1810     r=${v#*=}
1811     l=${v%"$r"}
1812     r=$(sh_quote "$r")
1813     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1814 done
1815
1816 find_things(){
1817     thing=$1
1818     pattern=$2
1819     file=$source_path/$3
1820     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1821 }
1822
1823 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1824 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1825 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1826 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1827 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1828 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1829 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1830 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1831 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1832 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1833 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1834
1835 find_tests(){
1836     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1837 }
1838
1839 ACODEC_TESTS=$(find_tests acodec)
1840 VCODEC_TESTS=$(find_tests vsynth1)
1841 LAVF_TESTS=$(find_tests lavf)
1842 LAVFI_TESTS=$(find_tests lavfi)
1843 SEEK_TESTS=$(find_tests seek seek_)
1844
1845 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1846
1847 for n in $COMPONENT_LIST; do
1848     v=$(toupper ${n%s})_LIST
1849     eval enable \$$v
1850     eval ${n}_if_any="\$$v"
1851 done
1852
1853 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1854
1855 die_unknown(){
1856     echo "Unknown option \"$1\"."
1857     echo "See $0 --help for available options."
1858     exit 1
1859 }
1860
1861 show_list() {
1862     suffix=_$1
1863     shift
1864     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1865     exit 0
1866 }
1867
1868 for opt do
1869     optval="${opt#*=}"
1870     case "$opt" in
1871     --extra-ldflags=*) add_ldflags $optval
1872     ;;
1873     --extra-libs=*) add_extralibs $optval
1874     ;;
1875     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1876     ;;
1877     --enable-debug=*) debuglevel="$optval"
1878     ;;
1879     --disable-everything)
1880     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1881     ;;
1882     --enable-*=*|--disable-*=*)
1883     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1884     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1885     eval list=\$$(toupper $thing)_LIST
1886     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1887     $action $(filter "$name" $list)
1888     ;;
1889     --enable-?*|--disable-?*)
1890     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1891     if is_in $option $COMPONENT_LIST; then
1892         test $action = disable && action=unset
1893         eval $action \$$(toupper ${option%s})_LIST
1894     elif is_in $option $CMDLINE_SELECT; then
1895         $action $option
1896     else
1897         die_unknown $opt
1898     fi
1899     ;;
1900     --list-*)
1901         NAME="${opt#--list-}"
1902         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1903         NAME=${NAME%s}
1904         eval show_list $NAME \$$(toupper $NAME)_LIST
1905     ;;
1906     --help|-h) show_help
1907     ;;
1908     *)
1909     optname="${opt%%=*}"
1910     optname="${optname#--}"
1911     optname=$(echo "$optname" | sed 's/-/_/g')
1912     if is_in $optname $CMDLINE_SET; then
1913         eval $optname='$optval'
1914     elif is_in $optname $CMDLINE_APPEND; then
1915         append $optname "$optval"
1916     else
1917          die_unknown $opt
1918     fi
1919     ;;
1920     esac
1921 done
1922
1923 disabled logging && logfile=/dev/null
1924
1925 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1926 set >> $logfile
1927
1928 test -n "$cross_prefix" && enable cross_compile
1929
1930 if enabled cross_compile; then
1931     test -n "$arch" && test -n "$target_os" ||
1932         die "Must specify target arch and OS when cross-compiling"
1933 fi
1934
1935 set_default arch target_os
1936
1937 ar_default="${cross_prefix}${ar_default}"
1938 cc_default="${cross_prefix}${cc_default}"
1939 cxx_default="${cross_prefix}${cxx_default}"
1940 nm_default="${cross_prefix}${nm_default}"
1941 pkg_config_default="${cross_prefix}${pkg_config_default}"
1942 ranlib="${cross_prefix}${ranlib}"
1943 strip_default="${cross_prefix}${strip_default}"
1944
1945 sysinclude_default="${sysroot}/usr/include"
1946
1947 set_default cc cxx nm pkg_config strip sysinclude
1948 enabled cross_compile || host_cc_default=$cc
1949 set_default host_cc
1950
1951 if ! $pkg_config --version >/dev/null 2>&1; then
1952     warn "$pkg_config not found, library detection may fail."
1953     pkg_config=false
1954 fi
1955
1956 exesuf() {
1957     case $1 in
1958         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1959     esac
1960 }
1961
1962 EXESUF=$(exesuf $target_os)
1963 HOSTEXESUF=$(exesuf $host_os)
1964
1965 # set temporary file name
1966 : ${TMPDIR:=$TEMPDIR}
1967 : ${TMPDIR:=$TMP}
1968 : ${TMPDIR:=/tmp}
1969
1970 if ! check_cmd mktemp -u XXXXXX; then
1971     # simple replacement for missing mktemp
1972     # NOT SAFE FOR GENERAL USE
1973     mktemp(){
1974         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1975     }
1976 fi
1977
1978 tmpfile(){
1979     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1980         (set -C; exec > $tmp) 2>/dev/null ||
1981         die "Unable to create temporary file in $TMPDIR."
1982     append TMPFILES $tmp
1983     eval $1=$tmp
1984 }
1985
1986 trap 'rm -f -- $TMPFILES' EXIT
1987
1988 tmpfile TMPC  .c
1989 tmpfile TMPCPP .cpp
1990 tmpfile TMPE  $EXESUF
1991 tmpfile TMPH  .h
1992 tmpfile TMPO  .o
1993 tmpfile TMPS  .S
1994 tmpfile TMPV  .ver
1995 tmpfile TMPSH .sh
1996 tmpfile TMPASM .asm
1997
1998 unset -f mktemp
1999
2000 chmod +x $TMPE
2001
2002 # make sure we can execute files in $TMPDIR
2003 cat > $TMPSH 2>> $logfile <<EOF
2004 #! /bin/sh
2005 EOF
2006 chmod +x $TMPSH >> $logfile 2>&1
2007 if ! $TMPSH >> $logfile 2>&1; then
2008     cat <<EOF
2009 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2010 variable to another directory and make sure that it is not mounted noexec.
2011 EOF
2012     die "Sanity test failed."
2013 fi
2014
2015 filter_cflags=echo
2016 filter_cppflags=echo
2017 filter_asflags=echo
2018
2019 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2020     cc_type=llvm_gcc
2021     cc_version=__VERSION__
2022     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2023     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2024     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2025     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2026     speed_cflags='-O3'
2027     size_cflags='-Os'
2028 elif $cc -v 2>&1 | grep -qi ^gcc; then
2029     cc_type=gcc
2030     cc_version=__VERSION__
2031     gcc_version=$($cc --version | head -n1)
2032     gcc_basever=$($cc -dumpversion)
2033     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2034     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2035     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2036     if ! $cc -dumpversion | grep -q '^2\.'; then
2037         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2038         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2039     fi
2040     speed_cflags='-O3'
2041     size_cflags='-Os'
2042 elif $cc --version 2>/dev/null | grep -q Intel; then
2043     cc_type=icc
2044     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2045     cc_ident=$($cc --version | head -n1)
2046     icc_version=$($cc -dumpversion)
2047     CC_DEPFLAGS='-MMD'
2048     AS_DEPFLAGS='-MMD'
2049     speed_cflags='-O3'
2050     size_cflags='-Os'
2051     noopt_cflags='-O1'
2052 elif $cc -v 2>&1 | grep -q xlc; then
2053     cc_type=xlc
2054     cc_version="AV_STRINGIFY(__IBMC__)"
2055     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2056     speed_cflags='-O5'
2057     size_cflags='-O5 -qcompact'
2058 elif $cc -V 2>/dev/null | grep -q Compaq; then
2059     cc_type=ccc
2060     cc_version="AV_STRINGIFY(__DECC_VER)"
2061     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2062     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2063     debuglevel=3
2064     add_ldflags -Wl,-z,now # calls to libots crash without this
2065     speed_cflags='-fast'
2066     size_cflags='-O1'
2067 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2068     test -d "$sysroot" || die "No valid sysroot specified."
2069     cc_type=armcc
2070     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2071     cc_ident=$($cc --vsn | head -n1)
2072     armcc_conf="$PWD/armcc.conf"
2073     $cc --arm_linux_configure                 \
2074         --arm_linux_config_file="$armcc_conf" \
2075         --configure_sysroot="$sysroot"        \
2076         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2077         die "Error creating armcc configuration file."
2078     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2079     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2080     as_default="${cross_prefix}gcc"
2081     CC_DEPFLAGS='-MMD'
2082     AS_DEPFLAGS='-MMD'
2083     speed_cflags='-O3'
2084     size_cflags='-Os'
2085     filter_asflags="filter_out -W${armcc_opt}*"
2086 elif $cc -version 2>/dev/null | grep -q TMS470; then
2087     cc_type=tms470
2088     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2089     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2090     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2091     CC_O='-fr=$(@D)'
2092     as_default="${cross_prefix}gcc"
2093     ld_default="${cross_prefix}gcc"
2094     TMPO=$(basename $TMPC .c).o
2095     append TMPFILES $TMPO
2096     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2097     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2098     AS_DEPFLAGS='-MMD'
2099     speed_cflags='-O3 -mf=5'
2100     size_cflags='-O3 -mf=2'
2101     filter_cflags=tms470_flags
2102     tms470_flags(){
2103         for flag; do
2104             case $flag in
2105                 -march=*|-mcpu=*)
2106                     case "${flag#*=}" in
2107                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2108                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2109                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2110                         armv6*|arm11*)          echo -mv=6   ;;
2111                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2112                                                 echo -mv=5e  ;;
2113                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2114                     esac
2115                     ;;
2116                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2117                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2118                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2119                 -msoft-float)   echo --float_support=vfplib       ;;
2120                 -O[0-3]|-mf=*)  echo $flag                        ;;
2121                 -g)             echo -g -mn                       ;;
2122                 -pds=*)         echo $flag                        ;;
2123             esac
2124         done
2125     }
2126 elif $cc -v 2>&1 | grep -q clang; then
2127     cc_type=clang
2128     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2129         cc_version=__clang_version__ || cc_version=__VERSION__
2130     cc_ident=$($cc --version | head -n1)
2131     CC_DEPFLAGS='-MMD'
2132     AS_DEPFLAGS='-MMD'
2133     speed_cflags='-O3'
2134     size_cflags='-Os'
2135 elif $cc -V 2>&1 | grep -q Sun; then
2136     cc_type=suncc
2137     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2138     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2139     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2140     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2141     add_ldflags -xc99
2142     speed_cflags='-O5'
2143     size_cflags='-O5 -xspace'
2144     filter_cflags=suncc_flags
2145     suncc_flags(){
2146         for flag; do
2147             case $flag in
2148                 -march=*|-mcpu=*)
2149                     case "${flag#*=}" in
2150                         native)                   echo -xtarget=native       ;;
2151                         v9|niagara)               echo -xarch=sparc          ;;
2152                         ultrasparc)               echo -xarch=sparcvis       ;;
2153                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2154                         i586|pentium)             echo -xchip=pentium        ;;
2155                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2156                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2157                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2158                         pentium4*)          echo -xtarget=pentium4           ;;
2159                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2160                         *-sse3)             echo -xarch=sse3                 ;;
2161                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2162                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2163                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2164                         k8|opteron|athlon64|athlon-fx)
2165                                                   echo -xarch=sse2a          ;;
2166                         athlon*)                  echo -xarch=pentium_proa   ;;
2167                     esac
2168                     ;;
2169                 -std=c99)             echo -xc99              ;;
2170                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2171                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2172                 -W*,*)                echo $flag              ;;
2173                 -f*-*|-W*)                                    ;;
2174                 *)                    echo $flag              ;;
2175             esac
2176         done
2177     }
2178 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2179     cc_type=pathscale
2180     cc_version=__PATHSCALE__
2181     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2182     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2183     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2184     speed_cflags='-O2'
2185     size_cflags='-Os'
2186     filter_cflags='filter_out -Wdisabled-optimization'
2187 elif $cc -v 2>&1 | grep -q Open64; then
2188     cc_type=open64
2189     cc_version=__OPEN64__
2190     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2191     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2192     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2193     speed_cflags='-O2'
2194     size_cflags='-Os'
2195     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2196 fi
2197
2198 test -n "$cc_type" && enable $cc_type ||
2199     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2200
2201 : ${as_default:=$cc}
2202 : ${dep_cc_default:=$cc}
2203 : ${ld_default:=$cc}
2204 set_default ar as dep_cc ld
2205
2206 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2207 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2208 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2209
2210 add_cflags $extra_cflags
2211 add_cxxflags $extra_cxxflags
2212 add_asflags $extra_cflags
2213
2214 if test -n "$sysroot"; then
2215     case "$cc_type" in
2216         gcc|llvm_gcc|clang)
2217             add_cppflags --sysroot="$sysroot"
2218             add_ldflags --sysroot="$sysroot"
2219         ;;
2220         tms470)
2221             add_cppflags -I"$sysinclude"
2222             add_ldflags  --sysroot="$sysroot"
2223         ;;
2224     esac
2225 fi
2226
2227 if test "$cpu" = host; then
2228     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2229
2230     case "$cc_type" in
2231         gcc|llvm_gcc)
2232             check_native(){
2233                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2234                 sed -n "/cc1.*$1=/{
2235                             s/.*$1=\\([^ ]*\\).*/\\1/
2236                             p
2237                             q
2238                         }" $TMPE
2239             }
2240             cpu=$(check_native -march || check_native -mcpu)
2241         ;;
2242     esac
2243
2244     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2245 fi
2246
2247 # Deal with common $arch aliases
2248 case "$arch" in
2249     arm*)
2250         arch="arm"
2251     ;;
2252     mips|mipsel|IP*)
2253         arch="mips"
2254     ;;
2255     mips64*)
2256         arch="mips"
2257         subarch="mips64"
2258     ;;
2259     parisc|hppa)
2260         arch="parisc"
2261     ;;
2262     parisc64|hppa64)
2263         arch="parisc"
2264         subarch="parisc64"
2265     ;;
2266     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2267         arch="ppc"
2268     ;;
2269     s390|s390x)
2270         arch="s390"
2271     ;;
2272     sh4|sh)
2273         arch="sh4"
2274     ;;
2275     sun4u|sparc64)
2276         arch="sparc"
2277         subarch="sparc64"
2278     ;;
2279     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2280         arch="x86"
2281     ;;
2282 esac
2283
2284 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2285 enable $arch
2286
2287 # Add processor-specific flags
2288 if test "$cpu" = generic; then
2289     : do nothing
2290 elif enabled ppc; then
2291
2292     case $(tolower $cpu) in
2293         601|ppc601|powerpc601)
2294             cpuflags="-mcpu=601"
2295             disable altivec
2296         ;;
2297         603*|ppc603*|powerpc603*)
2298             cpuflags="-mcpu=603"
2299             disable altivec
2300         ;;
2301         604*|ppc604*|powerpc604*)
2302             cpuflags="-mcpu=604"
2303             disable altivec
2304         ;;
2305         g3|75*|ppc75*|powerpc75*)
2306             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2307             disable altivec
2308         ;;
2309         g4|745*|ppc745*|powerpc745*)
2310             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2311         ;;
2312         74*|ppc74*|powerpc74*)
2313             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2314         ;;
2315         g5|970|ppc970|powerpc970|power4*)
2316             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2317         ;;
2318         cell)
2319             cpuflags="-mcpu=cell"
2320             enable ldbrx
2321         ;;
2322         e500v2)
2323             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2324             disable altivec
2325         ;;
2326         e500)
2327             cpuflags="-mcpu=8540 -mhard-float"
2328             disable altivec
2329         ;;
2330     esac
2331
2332 elif enabled x86; then
2333
2334     case $cpu in
2335         i[345]86|pentium)
2336             cpuflags="-march=$cpu"
2337             disable mmx
2338         ;;
2339         # targets that do NOT support conditional mov (cmov)
2340         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2341             cpuflags="-march=$cpu"
2342             disable cmov
2343         ;;
2344         # targets that do support conditional mov (cmov)
2345         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2346             cpuflags="-march=$cpu"
2347             enable cmov
2348             enable fast_cmov
2349         ;;
2350         # targets that do support conditional mov but on which it's slow
2351         pentium4|pentium4m|prescott|nocona)
2352             cpuflags="-march=$cpu"
2353             enable cmov
2354             disable fast_cmov
2355         ;;
2356     esac
2357
2358 elif enabled sparc; then
2359
2360     case $cpu in
2361         niagara)
2362             cpuflags="-mcpu=$cpu"
2363             disable vis
2364         ;;
2365         sparc64)
2366             cpuflags="-mcpu=v9"
2367         ;;
2368     esac
2369
2370 elif enabled arm; then
2371
2372     case $cpu in
2373         armv*)
2374             cpuflags="-march=$cpu"
2375             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2376         ;;
2377         *)
2378             cpuflags="-mcpu=$cpu"
2379             case $cpu in
2380                 cortex-a*)                               subarch=armv7a  ;;
2381                 cortex-r*)                               subarch=armv7r  ;;
2382                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2383                 arm11*)                                  subarch=armv6   ;;
2384                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2385                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2386             esac
2387         ;;
2388     esac
2389
2390 elif enabled alpha; then
2391
2392     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2393
2394 elif enabled bfin; then
2395
2396     cpuflags="-mcpu=$cpu"
2397
2398 elif enabled mips; then
2399
2400     cpuflags="-march=$cpu"
2401
2402 elif enabled avr32; then
2403
2404     case $cpu in
2405         ap7[02]0[0-2])
2406             subarch="avr32_ap"
2407             cpuflags="-mpart=$cpu"
2408         ;;
2409         ap)
2410             subarch="avr32_ap"
2411             cpuflags="-march=$cpu"
2412         ;;
2413         uc3[ab]*)
2414             subarch="avr32_uc"
2415             cpuflags="-mcpu=$cpu"
2416         ;;
2417         uc)
2418             subarch="avr32_uc"
2419             cpuflags="-march=$cpu"
2420         ;;
2421     esac
2422
2423 fi
2424
2425 add_cflags $cpuflags
2426 add_asflags $cpuflags
2427
2428 # compiler sanity check
2429 check_exec <<EOF
2430 int main(void){ return 0; }
2431 EOF
2432 if test "$?" != 0; then
2433     echo "$cc is unable to create an executable file."
2434     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2435         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2436         echo "Only do this if you know what cross compiling means."
2437     fi
2438     die "C compiler test failed."
2439 fi
2440
2441 add_cppflags -D_ISOC99_SOURCE
2442 add_cxxflags -D__STDC_CONSTANT_MACROS
2443 check_cflags -std=c99
2444 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2445 #include <stdlib.h>
2446 EOF
2447 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2448 #include <stdlib.h>
2449 EOF
2450
2451 check_host_cflags -std=c99
2452 check_host_cflags -Wall
2453
2454 case "$arch" in
2455     alpha|ia64|mips|parisc|sparc)
2456         spic=$shared
2457     ;;
2458     x86)
2459         subarch="x86_32"
2460         check_cc <<EOF && subarch="x86_64"
2461         int test[(int)sizeof(char*) - 7];
2462 EOF
2463         if test "$subarch" = "x86_64"; then
2464             spic=$shared
2465         fi
2466     ;;
2467     ppc)
2468         check_cc <<EOF && subarch="ppc64"
2469         int test[(int)sizeof(char*) - 7];
2470 EOF
2471     ;;
2472 esac
2473
2474 enable $subarch
2475 enabled spic && enable pic
2476
2477 # OS specific
2478 case $target_os in
2479     haiku)
2480         prefix_default="/boot/common"
2481         network_extralibs="-lnetwork"
2482         host_libs=
2483         ;;
2484     sunos)
2485         FFSERVERLDFLAGS=""
2486         SHFLAGS='-shared -Wl,-h,$$(@F)'
2487         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2488         network_extralibs="-lsocket -lnsl"
2489         add_cppflags -D__EXTENSIONS__
2490         nm_opts='-P -g'
2491         ;;
2492     netbsd)
2493         disable symver
2494         oss_indev_extralibs="-lossaudio"
2495         oss_outdev_extralibs="-lossaudio"
2496         ;;
2497     openbsd)
2498         enable malloc_aligned
2499         # On OpenBSD 4.5. the compiler does not use PIC unless
2500         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2501         # however the generated executable will not do anything
2502         # (simply quits with exit-code 1, no crash, no output).
2503         # Thus explicitly enable PIC here.
2504         enable pic
2505         disable symver
2506         SHFLAGS='-shared'
2507         oss_indev_extralibs="-lossaudio"
2508         oss_outdev_extralibs="-lossaudio"
2509         ;;
2510     dragonfly)
2511         enable malloc_aligned
2512         disable symver
2513         ;;
2514     freebsd)
2515         enable malloc_aligned
2516         ;;
2517     bsd/os)
2518         add_extralibs -lpoll -lgnugetopt
2519         strip="strip -d"
2520         ;;
2521     darwin)
2522         enable malloc_aligned
2523         gas="gas-preprocessor.pl $cc"
2524         enabled ppc && add_asflags -force_cpusubtype_ALL
2525         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2526         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2527         strip="${strip} -x"
2528         add_ldflags -Wl,-dynamic,-search_paths_first
2529         SLIBSUF=".dylib"
2530         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2531         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2532         FFSERVERLDFLAGS=-Wl,-bind_at_load
2533         objformat="macho"
2534         enabled x86_64 && objformat="macho64"
2535         enabled_any pic shared ||
2536             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2537         ;;
2538     mingw32*)
2539         if test $target_os = "mingw32ce"; then
2540             disable network
2541         else
2542             target_os=mingw32
2543         fi
2544         LIBTARGET=i386
2545         if enabled x86_64; then
2546             enable malloc_aligned
2547             LIBTARGET=x64
2548         elif enabled arm; then
2549             LIBTARGET=arm-wince
2550         fi
2551         shlibdir_default="$bindir_default"
2552         SLIBPREF=""
2553         SLIBSUF=".dll"
2554         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2555         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2556         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2557         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2558         SLIB_INSTALL_LINKS=
2559         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2560         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2561         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'
2562         objformat="win32"
2563         enable dos_paths
2564         check_cflags -fno-common
2565         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2566                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2567                 die "ERROR: MinGW runtime version must be >= 3.15."
2568         add_cppflags -U__STRICT_ANSI__
2569         ;;
2570     cygwin*)
2571         target_os=cygwin
2572         shlibdir_default="$bindir_default"
2573         SLIBPREF="cyg"
2574         SLIBSUF=".dll"
2575         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2576         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2577         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2578         objformat="win32"
2579         enable dos_paths
2580         check_cflags -fno-common
2581         add_cppflags -U__STRICT_ANSI__
2582         ;;
2583     *-dos|freedos|opendos)
2584         network_extralibs="-lsocket"
2585         objformat="coff"
2586         enable dos_paths
2587         add_cppflags -U__STRICT_ANSI__
2588         ;;
2589     linux)
2590         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2591         enable dv1394
2592         ;;
2593     irix*)
2594         target_os=irix
2595         ranlib="echo ignoring ranlib"
2596         ;;
2597     os/2*)
2598         strip="lxlite -CS"
2599         ln_s="cp -f"
2600         objformat="aout"
2601         add_cppflags -D_GNU_SOURCE
2602         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2603         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2604         FFSERVERLDFLAGS=""
2605         LIBSUF="_s.a"
2606         SLIBPREF=""
2607         SLIBSUF=".dll"
2608         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2609         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2610         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2611           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2612           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2613           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2614           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2615           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2616         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2617           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2618         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2619         enable dos_paths
2620         ;;
2621     gnu/kfreebsd)
2622         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2623         ;;
2624     gnu)
2625         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2626         ;;
2627     qnx)
2628         add_cppflags -D_QNX_SOURCE
2629         network_extralibs="-lsocket"
2630         ;;
2631     symbian)
2632         SLIBSUF=".dll"
2633         enable dos_paths
2634         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2635         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2636         add_ldflags -Wl,--target1-abs,--no-undefined \
2637                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2638                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2639         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2640                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2641                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2642         ;;
2643     none)
2644         ;;
2645     *)
2646         die "Unknown OS '$target_os'."
2647         ;;
2648 esac
2649
2650 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2651
2652 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2653
2654 set_default $PATHS_LIST
2655
2656 # we need to build at least one lib type
2657 if ! enabled_any static shared; then
2658     cat <<EOF
2659 At least one library type must be built.
2660 Specify --enable-static to build the static libraries or --enable-shared to
2661 build the shared libraries as well. To only build the shared libraries specify
2662 --disable-static in addition to --enable-shared.
2663 EOF
2664     exit 1;
2665 fi
2666
2667 die_license_disabled() {
2668     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2669 }
2670
2671 die_license_disabled gpl libx264
2672 die_license_disabled gpl libxavs
2673 die_license_disabled gpl libxvid
2674 die_license_disabled gpl x11grab
2675
2676 die_license_disabled nonfree libfaac
2677
2678 die_license_disabled version3 libopencore_amrnb
2679 die_license_disabled version3 libopencore_amrwb
2680 die_license_disabled version3 libvo_aacenc
2681 die_license_disabled version3 libvo_amrwbenc
2682
2683 ! enabled gpl && enabled version2 && die "LGPLv2 mode is unsupported"
2684 enabled version3 && enabled version2 && ! enabled nonfree && die "GPLv2 (not v2+) and GPLv3 without --enable-nonfree"
2685
2686 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2687 enabled version2 && enabled gpl && enable gplv2
2688
2689 disabled optimizations || check_cflags -fomit-frame-pointer
2690
2691 enable_pic() {
2692     enable pic
2693     add_cppflags -DPIC
2694     add_cflags   -fPIC
2695     add_asflags  -fPIC
2696 }
2697
2698 enabled pic && enable_pic
2699
2700 check_cc <<EOF || die "Symbol mangling check failed."
2701 int ff_extern;
2702 EOF
2703 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2704 extern_prefix=${sym%%ff_extern*}
2705
2706 check_cc <<EOF && enable inline_asm
2707 void foo(void) { __asm__ volatile ("" ::); }
2708 EOF
2709
2710 _restrict=
2711 for restrict_keyword in restrict __restrict__ __restrict; do
2712     check_cc <<EOF && _restrict=$restrict_keyword && break
2713 void foo(char * $restrict_keyword p);
2714 EOF
2715 done
2716
2717 check_cc <<EOF && enable attribute_packed
2718 struct { int x; } __attribute__((packed)) x;
2719 EOF
2720
2721 check_cc <<EOF && enable attribute_may_alias
2722 union { int x; } __attribute__((may_alias)) x;
2723 EOF
2724
2725 check_cc <<EOF || die "endian test failed"
2726 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2727 EOF
2728 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2729
2730 if enabled alpha; then
2731
2732     check_cflags -mieee
2733
2734 elif enabled arm; then
2735
2736     enabled thumb && check_cflags -mthumb || check_cflags -marm
2737     nogas=die
2738
2739     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2740         enable vfp_args
2741     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2742         case "${cross_prefix:-$cc}" in
2743             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2744             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2745 __asm__ (".eabi_attribute 28, 1");
2746 int main(void) { return 0; }
2747 EOF
2748         esac
2749         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2750     fi
2751
2752     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2753     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2754     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2755     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2756     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2757     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2758     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2759
2760     enabled_all armv6t2 shared !pic && enable_pic
2761
2762 elif enabled mips; then
2763
2764     check_asm loongson '"dmult.g $1, $2, $3"'
2765     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2766
2767 elif enabled ppc; then
2768
2769     enable local_aligned_8 local_aligned_16
2770
2771     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2772     check_asm ibm_asm   '"add 0, 0, 0"'
2773     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2774     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2775
2776     # AltiVec flags: The FSF version of GCC differs from the Apple version
2777     if enabled altivec; then
2778         nogas=warn
2779         check_cflags -maltivec -mabi=altivec &&
2780         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2781         check_cflags -faltivec
2782
2783         # check if our compiler supports Motorola AltiVec C API
2784         check_cc <<EOF || disable altivec
2785 $inc_altivec_h
2786 int main(void) {
2787     vector signed int v1, v2, v3;
2788     v1 = vec_add(v2,v3);
2789     return 0;
2790 }
2791 EOF
2792
2793         # check if our compiler supports braces for vector declarations
2794         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2795 $inc_altivec_h
2796 int main (void) { (vector int) {1}; return 0; }
2797 EOF
2798     fi
2799
2800 elif enabled sparc; then
2801
2802     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2803         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2804
2805 elif enabled x86; then
2806
2807     enable local_aligned_8 local_aligned_16
2808
2809     # check whether EBP is available on x86
2810     # As 'i' is stored on the stack, this program will crash
2811     # if the base pointer is used to access it because the
2812     # base pointer is cleared in the inline assembly code.
2813     check_exec_crash <<EOF && enable ebp_available
2814     volatile int i=0;
2815     __asm__ volatile (
2816         "xorl %%ebp, %%ebp"
2817     ::: "%ebp");
2818     return i;
2819 EOF
2820
2821     # check whether EBX is available on x86
2822     check_asm ebx_available '""::"b"(0)' &&
2823         check_asm ebx_available '"":::"%ebx"'
2824
2825     # check whether xmm clobbers are supported
2826     check_asm xmm_clobbers '"":::"%xmm0"'
2827
2828     # check whether binutils is new enough to compile SSSE3/MMX2
2829     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2830     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2831
2832     check_asm bswap '"bswap %%eax" ::: "%eax"'
2833
2834     if ! disabled_any asm mmx yasm; then
2835         if check_cmd $yasmexe --version; then
2836             enabled x86_64 && yasm_extra="-m amd64"
2837             yasm_debug="-g dwarf2"
2838         elif check_cmd nasm -v; then
2839             yasmexe=nasm
2840             yasm_debug="-g -F dwarf"
2841             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2842         fi
2843
2844         YASMFLAGS="-f $objformat $yasm_extra"
2845         enabled pic               && append YASMFLAGS "-DPIC"
2846         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2847         case "$objformat" in
2848             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2849         esac
2850
2851         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2852             die "yasm not found, use --disable-yasm for a crippled build"
2853         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2854     fi
2855
2856     case "$cpu" in
2857         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2858             disable fast_clz
2859         ;;
2860     esac
2861
2862 fi
2863
2864 if enabled asm; then
2865     as=${gas:=$as}
2866     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2867         $nogas "GNU assembler not found, install gas-preprocessor"
2868 fi
2869
2870 check_ldflags -Wl,--as-needed
2871
2872 if check_func dlopen; then
2873     ldl=
2874 elif check_func dlopen -ldl; then
2875     ldl=-ldl
2876 fi
2877
2878 if enabled network; then
2879     check_type "sys/types.h sys/socket.h" socklen_t
2880     check_type netdb.h "struct addrinfo"
2881     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2882     check_type netinet/in.h "struct sockaddr_in6"
2883     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2884     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2885     # Prefer arpa/inet.h over winsock2
2886     if check_header arpa/inet.h ; then
2887         check_func closesocket
2888     elif check_header winsock2.h ; then
2889         check_func_headers winsock2.h closesocket -lws2 && \
2890             network_extralibs="-lws2" || \
2891         { check_func_headers winsock2.h closesocket -lws2_32 && \
2892             network_extralibs="-lws2_32"; }
2893         check_type ws2tcpip.h socklen_t
2894         check_type ws2tcpip.h "struct addrinfo"
2895         check_type ws2tcpip.h "struct ipv6_mreq"
2896         check_type ws2tcpip.h "struct sockaddr_in6"
2897         check_type ws2tcpip.h "struct sockaddr_storage"
2898         check_struct winsock2.h "struct sockaddr" sa_len
2899     else
2900         disable network
2901     fi
2902 fi
2903
2904 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2905 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2906
2907 check_func  fcntl
2908 check_func  fork
2909 check_func  getaddrinfo $network_extralibs
2910 check_func  gethrtime
2911 check_func  getrusage
2912 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2913 check_func  inet_aton $network_extralibs
2914 check_func  isatty
2915 check_func  localtime_r
2916 check_func  ${malloc_prefix}memalign            && enable memalign
2917 check_func  mkstemp
2918 check_func  mmap
2919 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2920 check_func  setrlimit
2921 check_func  strerror_r
2922 check_func  strptime
2923 check_func  strtok_r
2924 check_func_headers conio.h kbhit
2925 check_func_headers windows.h PeekNamedPipe
2926 check_func_headers io.h setmode
2927 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2928 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2929 check_func_headers windows.h GetProcessTimes
2930 check_func_headers windows.h MapViewOfFile
2931 check_func_headers windows.h VirtualAlloc
2932
2933 check_header dlfcn.h
2934 check_header dxva2api.h -D_WIN32_WINNT=0x0600
2935 check_header libcrystalhd/libcrystalhd_if.h
2936 check_header malloc.h
2937 check_header poll.h
2938 check_header sys/mman.h
2939 check_header sys/resource.h
2940 check_header sys/select.h
2941 check_header termios.h
2942 check_header vdpau/vdpau.h
2943 check_header vdpau/vdpau_x11.h
2944 check_header X11/extensions/XvMClib.h
2945
2946 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2947 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2948
2949 # check for some common methods of building with pthread support
2950 # do this before the optional library checks as some of them require pthreads
2951 if ! disabled pthreads && ! enabled w32threads; then
2952     enable pthreads
2953     if check_func pthread_create; then
2954         :
2955     elif check_func pthread_create -pthread; then
2956         add_cflags -pthread
2957         add_extralibs -pthread
2958     elif check_func pthread_create -pthreads; then
2959         add_cflags -pthreads
2960         add_extralibs -pthreads
2961     elif check_func pthread_create -lpthreadGC2; then
2962         add_extralibs -lpthreadGC2
2963     elif ! check_lib pthread.h pthread_create -lpthread; then
2964         disable pthreads
2965     fi
2966 fi
2967
2968 for thread in $THREADS_LIST; do
2969     if enabled $thread; then
2970         test -n "$thread_type" &&
2971             die "ERROR: Only one thread type must be selected." ||
2972             thread_type="$thread"
2973     fi
2974 done
2975
2976 check_lib math.h sin -lm && LIBM="-lm"
2977 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2978 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2979
2980 check_mathfunc exp2
2981 check_mathfunc exp2f
2982 check_mathfunc llrint
2983 check_mathfunc llrintf
2984 check_mathfunc log2
2985 check_mathfunc log2f
2986 check_mathfunc lrint
2987 check_mathfunc lrintf
2988 check_mathfunc round
2989 check_mathfunc roundf
2990 check_mathfunc trunc
2991 check_mathfunc truncf
2992
2993 # these are off by default, so fail if requested and not available
2994 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2995 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2996 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2997 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2998 enabled libdirac   && require_pkg_config dirac                          \
2999     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
3000     "dirac_decoder_init dirac_encoder_init"
3001 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3002 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3003 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3004 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3005 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3006 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3007 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3008 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3009 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3010 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3011 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3012 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3013 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3014     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3015     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3016 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3017 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3018 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3019 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3020 enabled libvpx     && {
3021     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3022                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3023     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3024                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3025 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3026                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
3027                         die "ERROR: libx264 version must be >= 0.115."; }
3028 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3029 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3030 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3031                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3032                         die "ERROR: openal not found"; } &&
3033                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3034                         die "ERROR: openal version must be 1.1 or compatible"; }
3035 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
3036
3037 SDL_CONFIG="${cross_prefix}sdl-config"
3038 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
3039     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3040     enable sdl &&
3041     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3042 else
3043   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3044     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3045     sdl_libs=$("${SDL_CONFIG}" --libs)
3046     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3047     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3048     enable sdl &&
3049     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3050   fi
3051 fi
3052 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3053
3054 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3055
3056 check_header linux/fb.h
3057 check_header linux/videodev.h
3058 check_header linux/videodev2.h
3059 check_header sys/videoio.h
3060
3061 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3062 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3063 # w32api 3.12 had it defined wrong
3064 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3065
3066 check_type "dshow.h" IBaseFilter
3067
3068 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3069 { check_header dev/bktr/ioctl_meteor.h &&
3070   check_header dev/bktr/ioctl_bt848.h; } ||
3071 { check_header machine/ioctl_meteor.h &&
3072   check_header machine/ioctl_bt848.h; } ||
3073 { check_header dev/video/meteor/ioctl_meteor.h &&
3074   check_header dev/video/bktr/ioctl_bt848.h; } ||
3075 check_header dev/ic/bt8xx.h
3076
3077 check_header sndio.h
3078 if check_struct sys/soundcard.h audio_buf_info bytes; then
3079     enable_safe sys/soundcard.h
3080 else
3081     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3082     #include <sys/soundcard.h>
3083     audio_buf_info abc;
3084 EOF
3085 fi
3086 check_header soundcard.h
3087
3088 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3089
3090 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3091
3092 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3093
3094 enabled x11grab                         &&
3095 check_header X11/Xlib.h                 &&
3096 check_header X11/extensions/XShm.h      &&
3097 check_header X11/extensions/Xfixes.h    &&
3098 check_func XOpenDisplay -lX11           &&
3099 check_func XShmCreateImage -lX11 -lXext &&
3100 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3101
3102 if ! disabled vaapi; then
3103     check_lib va/va.h vaInitialize -lva && {
3104         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3105         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3106     } || disable vaapi
3107 fi
3108
3109 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3110 check_cpp_condition \
3111     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3112     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3113       disable vdpau; }
3114 fi
3115
3116 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3117
3118 # add some useful compiler flags if supported
3119 check_cflags -Wdeclaration-after-statement
3120 check_cflags -Wall
3121 check_cflags -Wno-parentheses
3122 check_cflags -Wno-switch
3123 check_cflags -Wno-format-zero-length
3124 check_cflags -Wdisabled-optimization
3125 check_cflags -Wpointer-arith
3126 check_cflags -Wredundant-decls
3127 check_cflags -Wno-pointer-sign
3128 check_cflags -Wcast-qual
3129 check_cflags -Wwrite-strings
3130 check_cflags -Wtype-limits
3131 check_cflags -Wundef
3132 check_cflags -Wmissing-prototypes
3133 check_cflags -Wno-pointer-to-int-cast
3134 enabled extra_warnings && check_cflags -Winline
3135
3136 # add some linker flags
3137 check_ldflags -Wl,--warn-common
3138 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3139 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3140
3141 echo "X{};" > $TMPV
3142 if test_ldflags -Wl,--version-script,$TMPV; then
3143     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3144     check_cc <<EOF && enable symver_asm_label
3145 void ff_foo(void) __asm__ ("av_foo@VERSION");
3146 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3147 EOF
3148     check_cc <<EOF && enable symver_gnu_asm
3149 __asm__(".symver ff_foo,av_foo@VERSION");
3150 void ff_foo(void) {}
3151 EOF
3152 fi
3153
3154 if [ -n "$optflags" ]; then
3155     add_cflags $optflags
3156 elif enabled small; then
3157     add_cflags $size_cflags
3158 elif enabled optimizations; then
3159     add_cflags $speed_cflags
3160 else
3161     add_cflags $noopt_cflags
3162 fi
3163 check_cflags -fno-math-errno
3164 check_cflags -fno-signed-zeros
3165
3166 if enabled icc; then
3167     # Just warnings, no remarks
3168     check_cflags -w1
3169     # -wd: Disable following warnings
3170     # 144, 167, 556: -Wno-pointer-sign
3171     # 1292: attribute "foo" ignored
3172     # 10006: ignoring unknown option -fno-signed-zeros
3173     # 10148: ignoring unknown option -Wno-parentheses
3174     # 10156: ignoring option '-W'; no argument required
3175     check_cflags -wd144,167,556,1292,10006,10148,10156
3176     # 11030: Warning unknown option --as-needed
3177     # 10156: ignoring option '-export'; no argument required
3178     check_ldflags -wd10156,11030
3179     # Allow to compile with optimizations
3180     check_ldflags -march=$cpu
3181     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3182     enable ebp_available
3183     if enabled x86_32; then
3184         test ${icc_version%%.*} -ge 11 && \
3185             check_cflags -falign-stack=maintain-16-byte || \
3186             disable aligned_stack
3187     fi
3188 elif enabled ccc; then
3189     # disable some annoying warnings
3190     add_cflags -msg_disable cvtu32to64
3191     add_cflags -msg_disable embedcomment
3192     add_cflags -msg_disable needconstext
3193     add_cflags -msg_disable nomainieee
3194     add_cflags -msg_disable ptrmismatch1
3195     add_cflags -msg_disable unreachcode
3196 elif enabled gcc; then
3197     check_cflags -fno-tree-vectorize
3198     check_cflags -Werror=implicit-function-declaration
3199     check_cflags -Werror=missing-prototypes
3200 elif enabled llvm_gcc; then
3201     check_cflags -mllvm -stack-alignment=16
3202 elif enabled clang; then
3203     check_cflags -mllvm -stack-alignment=16
3204     check_cflags -Qunused-arguments
3205 elif enabled armcc; then
3206     # 2523: use of inline assembler is deprecated
3207     add_cflags -W${armcc_opt},--diag_suppress=2523
3208     add_cflags -W${armcc_opt},--diag_suppress=1207
3209     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3210     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3211     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3212     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3213 elif enabled tms470; then
3214     add_cflags -pds=824 -pds=837
3215 elif enabled pathscale; then
3216     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3217 fi
3218
3219 enabled_any $THREADS_LIST      && enable threads
3220
3221 check_deps $CONFIG_LIST       \
3222            $CONFIG_EXTRA      \
3223            $HAVE_LIST         \
3224            $DECODER_LIST      \
3225            $ENCODER_LIST      \
3226            $HWACCEL_LIST      \
3227            $PARSER_LIST       \
3228            $BSF_LIST          \
3229            $DEMUXER_LIST      \
3230            $MUXER_LIST        \
3231            $FILTER_LIST       \
3232            $INDEV_LIST        \
3233            $OUTDEV_LIST       \
3234            $PROTOCOL_LIST     \
3235            $ACODEC_TESTS      \
3236            $VCODEC_TESTS      \
3237            $LAVF_TESTS        \
3238            $LAVFI_TESTS       \
3239            $SEEK_TESTS        \
3240
3241 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3242
3243 if test $target_os == "haiku"; then
3244     disable memalign
3245     disable posix_memalign
3246 fi
3247
3248 ! enabled_any memalign posix_memalign malloc_aligned &&
3249     enabled_any $need_memalign && enable memalign_hack
3250
3251 echo "install prefix            $prefix"
3252 echo "source path               $source_path"
3253 echo "C compiler                $cc"
3254 echo "ARCH                      $arch ($cpu)"
3255 if test "$build_suffix" != ""; then
3256     echo "build suffix              $build_suffix"
3257 fi
3258 if test "$progs_suffix" != ""; then
3259     echo "progs suffix              $progs_suffix"
3260 fi
3261 if test "$extra_version" != ""; then
3262     echo "version string suffix     $extra_version"
3263 fi
3264 echo "big-endian                ${bigendian-no}"
3265 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3266 if enabled x86; then
3267     echo "${yasmexe}                      ${yasm-no}"
3268     echo "MMX enabled               ${mmx-no}"
3269     echo "MMX2 enabled              ${mmx2-no}"
3270     echo "3DNow! enabled            ${amd3dnow-no}"
3271     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3272     echo "SSE enabled               ${sse-no}"
3273     echo "SSSE3 enabled             ${ssse3-no}"
3274     echo "AVX enabled               ${avx-no}"
3275     echo "CMOV enabled              ${cmov-no}"
3276     echo "CMOV is fast              ${fast_cmov-no}"
3277     echo "EBX available             ${ebx_available-no}"
3278     echo "EBP available             ${ebp_available-no}"
3279 fi
3280 if enabled arm; then
3281     echo "ARMv5TE enabled           ${armv5te-no}"
3282     echo "ARMv6 enabled             ${armv6-no}"
3283     echo "ARMv6T2 enabled           ${armv6t2-no}"
3284     echo "ARM VFP enabled           ${armvfp-no}"
3285     echo "IWMMXT enabled            ${iwmmxt-no}"
3286     echo "NEON enabled              ${neon-no}"
3287 fi
3288 if enabled mips; then
3289     echo "MMI enabled               ${mmi-no}"
3290 fi
3291 if enabled ppc; then
3292     echo "AltiVec enabled           ${altivec-no}"
3293     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3294     echo "dcbzl available           ${dcbzl-no}"
3295 fi
3296 if enabled sparc; then
3297     echo "VIS enabled               ${vis-no}"
3298 fi
3299 echo "debug symbols             ${debug-no}"
3300 echo "strip symbols             ${stripping-no}"
3301 echo "optimize for size         ${small-no}"
3302 echo "optimizations             ${optimizations-no}"
3303 echo "static                    ${static-no}"
3304 echo "shared                    ${shared-no}"
3305 echo "postprocessing support    ${postproc-no}"
3306 echo "new filter support        ${avfilter-no}"
3307 echo "network support           ${network-no}"
3308 echo "threading support         ${thread_type-no}"
3309 echo "SDL support               ${sdl-no}"
3310 echo "Sun medialib support      ${mlib-no}"
3311 echo "libdxva2 enabled          ${dxva2-no}"
3312 echo "libva enabled             ${vaapi-no}"
3313 echo "libvdpau enabled          ${vdpau-no}"
3314 echo "AVISynth enabled          ${avisynth-no}"
3315 echo "libcelt enabled           ${libcelt-no}"
3316 echo "frei0r enabled            ${frei0r-no}"
3317 echo "libdc1394 support         ${libdc1394-no}"
3318 echo "libdirac enabled          ${libdirac-no}"
3319 echo "libfaac enabled           ${libfaac-no}"
3320 echo "libgsm enabled            ${libgsm-no}"
3321 echo "libmp3lame enabled        ${libmp3lame-no}"
3322 echo "libnut enabled            ${libnut-no}"
3323 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3324 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3325 echo "libopencv support         ${libopencv-no}"
3326 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3327 echo "librtmp enabled           ${librtmp-no}"
3328 echo "libschroedinger enabled   ${libschroedinger-no}"
3329 echo "libspeex enabled          ${libspeex-no}"
3330 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3331 echo "libtheora enabled         ${libtheora-no}"
3332 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3333 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3334 echo "libvorbis enabled         ${libvorbis-no}"
3335 echo "libvpx enabled            ${libvpx-no}"
3336 echo "libx264 enabled           ${libx264-no}"
3337 echo "libxavs enabled           ${libxavs-no}"
3338 echo "libxvid enabled           ${libxvid-no}"
3339 echo "openal enabled            ${openal-no}"
3340 echo "zlib enabled              ${zlib-no}"
3341 echo "bzlib enabled             ${bzlib-no}"
3342 echo
3343
3344 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3345     echo "Enabled ${type}s:"
3346     eval list=\$$(toupper $type)_LIST
3347     print_enabled '_*' $list | sort | pr -r -3 -t
3348     echo
3349 done
3350
3351 license="LGPL version 2.1 or later"
3352 if enabled nonfree; then
3353     license="nonfree and unredistributable"
3354 elif enabled gplv3; then
3355     license="GPL version 3 or later"
3356 elif enabled gplv2; then
3357     license="GPL version 2"
3358 elif enabled lgplv3; then
3359     license="LGPL version 3 or later"
3360 elif enabled gpl; then
3361     license="GPL version 2 or later"
3362 fi
3363
3364 echo "License: $license"
3365
3366 echo "Creating config.mak and config.h..."
3367
3368 test -e Makefile || $ln_s "$source_path/Makefile" .
3369
3370 enabled stripping || strip="echo skipping strip"
3371
3372 config_files="$TMPH config.mak"
3373
3374 cat > config.mak <<EOF
3375 # Automatically generated by configure - do not modify!
3376 ifndef FFMPEG_CONFIG_MAK
3377 FFMPEG_CONFIG_MAK=1
3378 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3379 prefix=$prefix
3380 LIBDIR=\$(DESTDIR)$libdir
3381 SHLIBDIR=\$(DESTDIR)$shlibdir
3382 INCDIR=\$(DESTDIR)$incdir
3383 BINDIR=\$(DESTDIR)$bindir
3384 DATADIR=\$(DESTDIR)$datadir
3385 MANDIR=\$(DESTDIR)$mandir
3386 SRC_PATH=$source_path
3387 ifndef MAIN_MAKEFILE
3388 SRC_PATH:=\$(SRC_PATH:.%=..%)
3389 endif
3390 CC_IDENT=$cc_ident
3391 ARCH=$arch
3392 CC=$cc
3393 CXX=$cxx
3394 AS=$as
3395 LD=$ld
3396 DEPCC=$dep_cc
3397 YASM=$yasmexe
3398 YASMDEP=$yasmexe
3399 AR=$ar
3400 RANLIB=$ranlib
3401 CP=cp -p
3402 LN_S=$ln_s
3403 STRIP=$strip
3404 CPPFLAGS=$CPPFLAGS
3405 CFLAGS=$CFLAGS
3406 CXXFLAGS=$CXXFLAGS
3407 ASFLAGS=$ASFLAGS
3408 AS_O=$CC_O
3409 CC_O=$CC_O
3410 CXX_O=$CXX_O
3411 LDFLAGS=$LDFLAGS
3412 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3413 SHFLAGS=$SHFLAGS
3414 YASMFLAGS=$YASMFLAGS
3415 BUILDSUF=$build_suffix
3416 PROGSSUF=$progs_suffix
3417 FULLNAME=$FULLNAME
3418 LIBPREF=$LIBPREF
3419 LIBSUF=$LIBSUF
3420 LIBNAME=$LIBNAME
3421 SLIBPREF=$SLIBPREF
3422 SLIBSUF=$SLIBSUF
3423 EXESUF=$EXESUF
3424 EXTRA_VERSION=$extra_version
3425 DEPFLAGS=$DEPFLAGS
3426 CCDEP=$CCDEP
3427 CXXDEP=$CXXDEP
3428 ASDEP=$ASDEP
3429 CC_DEPFLAGS=$CC_DEPFLAGS
3430 AS_DEPFLAGS=$AS_DEPFLAGS
3431 HOSTCC=$host_cc
3432 HOSTCFLAGS=$host_cflags
3433 HOSTEXESUF=$HOSTEXESUF
3434 HOSTLDFLAGS=$host_ldflags
3435 HOSTLIBS=$host_libs
3436 TARGET_EXEC=$target_exec
3437 TARGET_PATH=$target_path
3438 SDL_LIBS=$sdl_libs
3439 SDL_CFLAGS=$sdl_cflags
3440 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3441 EXTRALIBS=$extralibs
3442 INSTALL=$install
3443 LIBTARGET=${LIBTARGET}
3444 SLIBNAME=${SLIBNAME}
3445 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3446 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3447 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3448 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3449 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3450 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3451 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3452 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3453 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3454 EOF
3455
3456 get_version(){
3457     name=$1
3458     file=$source_path/$2
3459     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3460     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3461     lcname=$(tolower $name)
3462     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3463     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3464 }
3465
3466 get_version LIBSWSCALE  libswscale/swscale.h
3467 get_version LIBPOSTPROC libpostproc/postprocess.h
3468 get_version LIBAVCODEC  libavcodec/version.h
3469 get_version LIBAVDEVICE libavdevice/avdevice.h
3470 get_version LIBAVFORMAT libavformat/version.h
3471 get_version LIBAVUTIL   libavutil/avutil.h
3472 get_version LIBAVFILTER libavfilter/avfilter.h
3473
3474 cat > $TMPH <<EOF
3475 /* Automatically generated by configure - do not modify! */
3476 #ifndef FFMPEG_CONFIG_H
3477 #define FFMPEG_CONFIG_H
3478 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3479 #define FFMPEG_LICENSE "$(c_escape $license)"
3480 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3481 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3482 #define CC_TYPE "$cc_type"
3483 #define CC_VERSION $cc_version
3484 #define restrict $_restrict
3485 #define EXTERN_PREFIX "${extern_prefix}"
3486 #define EXTERN_ASM ${extern_prefix}
3487 #define SLIBSUF "$SLIBSUF"
3488 EOF
3489
3490 test -n "$malloc_prefix" &&
3491     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3492
3493 if enabled small || disabled optimizations; then
3494     echo "#undef  av_always_inline"  >> $TMPH
3495     if enabled small; then
3496         echo "#define av_always_inline inline"  >> $TMPH
3497     else
3498         echo "#define av_always_inline av_unused"  >> $TMPH
3499     fi
3500 fi
3501
3502 if enabled yasm; then
3503     append config_files $TMPASM
3504     printf '' >$TMPASM
3505 fi
3506
3507 print_config ARCH_   "$config_files" $ARCH_LIST
3508 print_config HAVE_   "$config_files" $HAVE_LIST
3509 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3510                                      $CONFIG_EXTRA      \
3511                                      $DECODER_LIST      \
3512                                      $ENCODER_LIST      \
3513                                      $HWACCEL_LIST      \
3514                                      $PARSER_LIST       \
3515                                      $BSF_LIST          \
3516                                      $DEMUXER_LIST      \
3517                                      $MUXER_LIST        \
3518                                      $FILTER_LIST       \
3519                                      $PROTOCOL_LIST     \
3520                                      $INDEV_LIST        \
3521                                      $OUTDEV_LIST       \
3522
3523 cat >>config.mak <<EOF
3524 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3525 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3526 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3527 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3528 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3529 EOF
3530
3531 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3532 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3533
3534 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3535 cp_if_changed $TMPH config.h
3536 touch .config
3537
3538 enabled yasm && cp_if_changed $TMPASM config.asm
3539
3540 cat > $TMPH <<EOF
3541 /* Generated by ffconf */
3542 #ifndef AVUTIL_AVCONFIG_H
3543 #define AVUTIL_AVCONFIG_H
3544 EOF
3545
3546 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3547
3548 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3549
3550 cp_if_changed $TMPH libavutil/avconfig.h
3551
3552 test -n "$WARNINGS" && printf "\n$WARNINGS"
3553
3554 # build pkg-config files
3555
3556 pkgconfig_generate(){
3557 name=$1
3558 shortname=${name#lib}${build_suffix}
3559 comment=$2
3560 version=$3
3561 libs=$4
3562 requires=$5
3563 enabled ${name#lib} || return 0
3564 mkdir -p $name
3565 cat <<EOF > $name/$name.pc
3566 prefix=$prefix
3567 exec_prefix=\${prefix}
3568 libdir=$libdir
3569 includedir=$incdir
3570
3571 Name: $name
3572 Description: $comment
3573 Version: $version
3574 Requires: $(enabled shared || echo $requires)
3575 Requires.private: $(enabled shared && echo $requires)
3576 Conflicts:
3577 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3578 Libs.private: $(enabled shared && echo $libs)
3579 Cflags: -I\${includedir}
3580 EOF
3581 cat <<EOF > $name/$name-uninstalled.pc
3582 prefix=
3583 exec_prefix=
3584 libdir=\${pcfiledir}
3585 includedir=${source_path}
3586
3587 Name: $name
3588 Description: $comment
3589 Version: $version
3590 Requires: $requires
3591 Conflicts:
3592 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3593 Cflags: -I\${includedir}
3594 EOF
3595 }
3596
3597 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3598 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3599 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3600 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3601 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3602 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3603 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"